A bottle preform sterilization device

Abstract

The present invention discloses a preform sterilizing device, which includes a conveying component I and a sterilizing component. The sterilizing component is provided with a shell I, an injection component I, and an air suction component I. A sterilizing area with a high degree of closure is constructed based on the shell I. The sterilizing area is established on the path for conveying the preform. The injection component I sprays the sterilizing agent into the aforementioned space, and the air suction component I forcibly recovers the sterilizing agent. The preform sterilizing device provides a sterilizing chamber with a high degree of closure and places the sterilizing chamber on the conveying path of the preform. The preform is immersed in the sterilizing agent, thereby obtaining a treatment effect of full contact with the sterilizing agent, so that the sterilization treatment operation of the preform can obtain very good work efficiency and work quality.

Description

Technical Field

[0001] The invention relates to a bottle blank sterilizing device. Background Art

[0002] As filling technology tends to improve in the direction of meeting aseptic filling standards, the resulting aseptic filling technology will have specific characteristics. In the aseptic filling technology of the blow-fill-cap integrated equipment with bottles as containers, the first condition for implementing aseptic filling is that the bottle body is in a sterile state, so the bottle needs to be sterilized. In the process of the blow-fill-cap integrated equipment, the preform can be directly blown into a bottle, and then the bottle directly participates in the filling. On the whole, it is not difficult to understand that the blow-fill-cap integrated equipment has a filling function that takes materials and preforms as input operation objects and bottled products filled with materials as output results. The transformation from preform to bottle is implemented inside the blow-fill-cap integrated equipment through various transmission mechanisms. In theory, the sterilization of the bottle body can be an ideal aseptic container, but in practice, the sterilization time required for the bottle body needs to be considered, and the amount of sterilization time will directly affect the output of the blow-fill-cap integrated equipment. Just as the actual application requires the output to be as large as possible, the sterilization time is limited to a short time, and the time required to complete the sterilization can only be shorter. Since the more colonies on the bottle, the longer the sterilization time required, the shorter sterilization time condition is not conducive to completing the bottle sterilization operation when the colony count is large.

[0003] In order to complete the sterilization operation of the bottle, the prior art adopts the design idea of ​​increasing the sterilization path to deal with the technical problem of short sterilization time. In the technology obtained based on this design idea, in addition to the bottle body, the bottle blank that forms the bottle also needs to be sterilized. That is, the bottle blank is sterilized first, and then the bottle is sterilized. The time required for sterilization is increased by increasing the length of the sterilization path; the amount of colonies will not increase due to the transformation from the bottle blank to the bottle. After any bottle blank is sterilized, the amount of colonies on the bottle blown by the bottle blank is less than the amount of colonies on the aforementioned bottle blank. Therefore, the sterilization operation of the bottle can be completed even in a short time of sterilizing the bottle.

[0004] The bottle blank sterilization technology used in the prior art on the integrated blowing, filling and capping equipment has the defects that the sterilization operation surface is limited to the inside of the bottle blank and the sterilizing agent is scattered disorderly after leaving the bottle blank. For example, the patent with the publication number CN104922710B and the authorization announcement on December 12, 2017 is a Chinese patent for a bottle blank sterilization device. In the technical solution recorded therein, the sterilizing agent is only sprayed on the inner wall of the bottle blank, and the sterilization operation of the outer wall of the bottle blank is not involved. The filling area is a sterile environment as a whole, so that the surface of the unsterilized bottle blank needs to be sterilized after it is blown into a bottle, otherwise the outer wall of the bottle will destroy the conditions for aseptic filling. Therefore, the sterilization operation of only the inner wall of the bottle blank is not conducive to the implementation of aseptic filling under high-volume working conditions, and the outer wall of the bottle cannot obtain the ideal sterilization effect in a short time. Moreover, the sterilizing agent overflowing from the inside of the preform is uncontrolled and is in a disordered scattered state after leaving the preform. The patent document has clearly pointed out that the sterilizing agent is hydrogen peroxide, which has strong oxidizing characteristics, can denature proteins and is easily soluble in water. Therefore, the scattered sterilizing agent can easily contaminate the items to be filled. Summary of the invention

[0005] The technical problem to be solved by the present invention is how to perform a comprehensive sterilization operation on the bottle blanks during the bottle blank conveying stage, thereby obtaining a bottle blank sterilization device.

[0006] In order to solve the above technical problems, the present invention designs two technical solutions to the technical problems based on the same design concept.

[0007] The first technical solution.

[0008] The bottle blank sterilizing device in the technical scheme includes a conveying component I and a sterilizing component, wherein the conveying component I includes a star wheel disc I and a guard plate I, wherein the star wheel disc I is provided with a conveying groove I distributed in an annular shape, wherein the guard plate I is distributed on one side of the star wheel disc I and the star wheel disc I and the guard plate I are spaced apart to form an arc-shaped conveying area I, wherein the sterilizing component is stationary relative to the guard plate I, wherein the sterilizing component is provided with a shell I, an injection assembly I, and an air suction assembly I, wherein the shell I is provided with an input end shielding chamber I, an input end current limiting chamber, a sterilizing chamber, an output end current limiting chamber, an output end shielding chamber I, and a plurality of chambers located in the input end shielding chamber I, the input end current limiting chamber, and the sterilizing chamber. , the output end current limiting chamber, and the side shielding chamber on the same side of the output end shielding chamber I, the width of the input end current limiting chamber and the width of the output end current limiting chamber are both greater than the width of the conveying area I, and the width of the input end current limiting chamber and the width of the output end current limiting chamber are both smaller than the width of the input end shielding chamber I, the width of the sterilization chamber, and the width of the output end shielding chamber I, the length of the input end current limiting chamber and the length of the output end current limiting chamber are both greater than the spacing between adjacent conveying grooves I, the shell I is provided with an input port I connected to the input end shielding chamber I, and an output port I connected to the output end shielding chamber I, the side of the star wheel disk I with the guard plate I is embedded in the sterilization component together with the guard plate I, and the conveying area I passes through An input end shielding chamber I, an input end current limiting chamber, a sterilization chamber, an output end current limiting chamber, an output end shielding chamber I, and the conveying area I also passes through the input port I and the output port I, the injection component I includes an upper end injection unit I and a lower end injection unit I, the injection range of the upper end injection unit I is located in the sterilization chamber and intersects with the upper part of the conveying area I, the injection range of the lower end injection unit I is located in the sterilization chamber and intersects with the lower part of the conveying area I, the suction component I includes an input end suction unit I and an output end suction unit I, the input end suction unit I is provided with at least two input end suction parts I, one of which is connected to the upper part of the input end shielding chamber I, and the other is connected to the upper part of the input end suction part I. The air position I is connected with the lower part of the input end shielding chamber I, and the output end air suction unit I is provided with two output end air suction positions I, one of which is connected with the upper part of the output end shielding chamber I, and the other is connected with the lower part of the output end shielding chamber I. Two air delivery ports are provided inside the shell I, one end of the side shielding chamber is connected with the input end shielding chamber I through one of the air delivery ports, and the other end of the side shielding chamber is connected with the output end shielding chamber I through the other air delivery port. The input end shielding chamber I, the input end current limiting chamber, the sterilization chamber, the output end current limiting chamber, and the output end shielding chamber I are all connected with the side shielding chamber through the gap between the shell I and the star wheel disk I.

[0009] The main function of the preform sterilization device is to transport the preform as part of the blow-fill-seal integrated device and sterilize the preform at the same time. The conveying component I in the preform sterilization device is the same as the structure of the star wheel disc in the prior art for conveying the preform; the sterilization component is different from the technical solutions in the same technical field in the prior art based on substantial differences. The input end shielding chamber I, the input end current limiting chamber, the sterilization chamber, the output end current limiting chamber, the output end shielding chamber I and the side shielding chamber are continuously distributed inside the shell I. The sterilization chamber directly cooperates with the sterilization operation, and the sterilizer is filled in the entire sterilization chamber. After the preform passes through the sterilization chamber along the conveying area I, the preform is completely immersed in the sterilizer, which will undoubtedly sterilize the outer wall of the preform. At the same time, after the immersion contact sterilizer, the sterilizer will be forced to enter the inner wall of the preform as the sterilizer flows, thereby achieving the technical purpose of comprehensive sterilization operation.

[0010] During the sterilization operation, the sterilizing agent will be continuously input into the sterilization chamber, so that the air pressure inside the sterilization chamber is greater than the air pressure outside the shell I, and the sterilization chamber is in a positive pressure state. Maintaining the positive pressure state of the sterilization chamber requires controlling the overflow amount of the sterilizing agent from the sterilization chamber, which consists of two parts, one is the static overflow amount and the other is the dynamic overflow amount. The static overflow amount comes from the sterilizing agent overflowing from the gap between the shell I and the star wheel; the dynamic overflow amount comes from the sterilizing agent overflowing from the connecting structure between the sterilization chamber and other chambers. For example, when the sterilization chamber and the input-end limiting chamber are in a state of unobstructed connection, the sterilizing agent will enter the input-end limiting chamber without hindrance, and when the sterilization chamber and the output-end limiting chamber are in a state of unobstructed connection, the sterilizing agent will enter the output-end limiting chamber without hindrance. The dynamic overflow amount decreases after the bottle blank enters the input-end limiting chamber and the output-end limiting chamber. The technical solution maintains the positive pressure state of the sterilization chamber by controlling the dynamic overflow amount.

[0011] The input-end flow limiting chamber and the output-end flow limiting chamber are narrower and longer than other chambers. Their ideal cross-sectional characteristics should be consistent with the contour of the bottle blank. However, due to cost considerations, their cross-sections are designed to be long strips that tend to the contour of the bottle blank. When the bottle blank is placed in the input-end flow limiting chamber and the output-end flow limiting chamber, the technical effect of the bottle blank blocking the input-end flow limiting chamber and the output-end flow limiting chamber should be formed. In this way, the degree of connectivity between the sterilization chamber and the outside world will be significantly reduced. After all, the lower the degree of connectivity between the sterilization chamber and the outside world, the less sterilizing agent overflows. When the star wheel drives the bottle blanks forward, there is a distance between adjacent bottle blanks. If the length of the input-end limiting chamber and the length of the output-end limiting chamber are both smaller than the distance between adjacent bottle blanks, there will be a situation where one of the two adjacent bottle blanks is located in the sterilization chamber and the other is located in the input-end shielding chamber I, or there will be a situation where one of the two adjacent bottle blanks is located in the sterilization chamber and the other is located in the output-end shielding chamber I. In this case, the space between the adjacent bottle blanks will make the input-end limiting chamber and the output-end limiting chamber unobstructed, and the sterilizing agent from the sterilization chamber can easily flow from the input-end limiting chamber and the output-end limiting chamber to the output chamber in a low-pressure state. The input shielding chamber I and the output shielding chamber I overflow. In order to reduce the dynamic overflow, in the technical solution, the length of the input limiting chamber and the length of the output limiting chamber are both greater than the spacing between adjacent conveying grooves I. During conveying, the preforms are stuck in the conveying grooves I of each star wheel disc. Therefore, relative to the length of the input limiting chamber and the length of the output limiting chamber, they are both greater than the spacing between adjacent preforms. This ensures that there will be a preform in the input limiting chamber and the output limiting chamber at any time, ensuring that the smoothness of the input limiting chamber and the output limiting chamber is at the lowest state, and only allowing an appropriate amount of sterilizing agent to overflow from the input limiting chamber and the output limiting chamber. Therefore, through the flow limiting control of the input limiting chamber and the output limiting chamber, the sterilization chamber can maintain a relatively closed state, and the sterilizing agent dissipation process inside it can be controlled.

[0012] The sterilizing agent will overflow the sterilizing chamber under the positive pressure state of the sterilizing chamber. The negative impact of the sterilizing agent in the aseptic filling environment has been recorded above, so the overflowing sterilizing agent must be controlled to avoid disorderly overflow. In this technical solution, a relatively closed sterilization environment is constructed in conjunction with the sterilizing chamber, and the sterilizing agent overflowing from the sterilizing chamber needs to be forcibly recovered. The forced recovery process is based on the forced recovery structure constructed by the input end shielding chamber I, the output end shielding chamber I, and the side shielding chamber. Under the action of the suction component I, the input end shielding chamber I and the output end shielding chamber I are both in a negative pressure state where the internal air pressure is less than the air pressure outside the shell I. The sterilizing agent overflowing from the input end limiting chamber and the output end limiting chamber enters the input end shielding chamber I and the output end shielding chamber I respectively, and is finally drawn away. The two ends of the side shielding chamber are connected to the input end shielding chamber I and the output end shielding chamber I respectively, so the side shielding chamber is also in a negative pressure state. The air pressure of the input end shielding chamber I and the output end shielding chamber I are both lower than the air pressure of the side shielding chamber, and the air pressure of the side shielding chamber is lower than the air pressure of the sterilization chamber. The sterilizing agent overflowing from the gap between the shell I and the star wheel will be sucked into the side shielding chamber in a negative pressure state, and finally be drawn away after flowing through the input end shielding chamber I and the output end shielding chamber I. This prevents the sterilizing agent from being scattered disorderly and ensures that the sterilizing agent is within a controllable range.

[0013] In the technical solution, the upper spray unit I is located at the upper part of the sterilization chamber, and the upper spray unit I includes a top nozzle I and an upper side nozzle I. The top nozzle I is located at the top of the sterilization chamber, and the upper side nozzle I is located at the side of the sterilization chamber. The spray direction of the top nozzle I and the spray direction of the upper side nozzle I are both toward the conveying area I. In the technical solution, the lower spray unit I is located at the lower part of the sterilization chamber, and the lower spray unit I includes a bottom nozzle I and a lower side nozzle I. The bottom nozzle I is located at the bottom of the sterilization chamber, and the lower side nozzle I is located at the side of the sterilization chamber. The spray direction of the bottom nozzle I and the spray direction of the lower side nozzle I are both toward the conveying area I. The top nozzle I is responsible for spraying the sterilant from top to bottom, and the bottom nozzle I is responsible for spraying the sterilant from bottom to top. The upper side nozzle I and the lower side nozzle I are responsible for spraying the sterilant from the side, so as to facilitate the sterilization chamber to be quickly filled with the sterilizing agent.

[0014] In order to drive the preform to rotate when the star wheel drives the preform forward, the sterilization component is provided with a brake, which is distributed in the housing I and extends into the upper part of the conveying area I, and the brake is located on one side of the conveying area I, and at least one upper side nozzle I is located on the other side of the conveying area I. After the preform rotates, the contact between the preform and the sterilizing agent will become more uniform, and the surface of the preform will be fully exposed to the sterilizing agent during the rotation of the preform, thereby eliminating the dead angle of the sterilization operation.

[0015] The length of the sterilization chamber is much larger than the spacing between adjacent conveying grooves on the star wheel disk. Therefore, the sterilization chamber has a significant length feature. Obviously, a single number of nozzles will greatly waste the sterilization chamber with large-size space conditions. Therefore, a plurality of nozzle structures are provided in the present technical solution. Specifically, the top nozzles I are arranged at intervals in the same circumferential direction around the central axis of the star wheel disk I, and the upper side nozzles I are arranged at intervals in the same circumferential direction around the central axis of the star wheel disk I. The spray direction of the top nozzles I is vertically downward, and the spray direction of the upper side nozzles I is horizontal. In addition, the bottom nozzles I are arranged at intervals in the same circumferential direction around the central axis of the star wheel disk I, and the lower side nozzles I are arranged at intervals in the same circumferential direction around the central axis of the star wheel disk I. The spray direction of the bottom nozzles I is vertically upward, and the spray direction of the lower side nozzles I is horizontal.

[0016] The nozzles facing each other easily generate turbulence, which is not conducive to obtaining an orderly airflow. To avoid this problem, the spray range of the top nozzle I and the spray range of the upper side nozzle I in the technical solution are staggered in the same circumferential direction around the central axis of the star wheel disk I. In addition, the spray range of the bottom nozzle I and the spray range of the lower side nozzle I are staggered in the same circumferential direction around the central axis of the star wheel disk I. After the positions are staggered, the airflow path can be predicted, which makes it easier to calculate the degree of contact between the sterilizer and the preform, so as to adjust to the most reasonable conveying process.

[0017] The sterilization chamber is in a highly closed state in the shell I. The structural conditions provided by the multi-angle nozzles installed on the shell I are that the side nozzles can be one group, two groups, or even multiple groups. In theory, the more nozzles there are, the more conducive it is to keep the sterilization chamber full of sterilizing agent and the positive pressure state of the sterilization chamber. However, considering that the preform moves at high speed in the sterilization chamber, the number of nozzles should match the movement characteristics of the preform to avoid the situation where only individual nozzles are effective. The upper side nozzle I includes an upper outer nozzle I and an upper inner nozzle I. The upper outer nozzle I and the upper inner nozzle I are respectively located on both sides of the sterilization chamber. The distance from the upper inner nozzle I to the central axis of the star wheel disk I is less than the distance from the upper outer nozzle I to the central axis of the star wheel disk I. The spray direction of the upper outer nozzle I and the spray direction of the upper inner nozzle I are both toward the conveying area I. In addition, the lower side nozzle I includes a lower outer nozzle I and a lower inner nozzle I, and the lower outer nozzle I and the lower inner nozzle I are respectively located on both sides of the sterilization chamber, and the distance from the lower inner nozzle I to the central axis of the star wheel disk I is smaller than the distance from the lower outer nozzle I to the central axis of the star wheel disk I, and the injection direction of the lower outer nozzle I and the injection direction of the lower inner nozzle I are both toward the conveying area I.

[0018] When the number of nozzles increases, a better nozzle installation structure can be obtained through the position arrangement characteristics between each other to avoid uneven distribution of nozzles. To this end, the top nozzles I are arranged at intervals in the same circumferential direction around the central axis of the star wheel disk I, the upper outer nozzles I are arranged at intervals in the same circumferential direction around the central axis of the star wheel disk I, and the upper inner nozzles I are arranged at intervals in the same circumferential direction around the central axis of the star wheel disk I. The spray direction of the top nozzle I is vertically downward, the spray direction of the upper outer nozzle I and the spray direction of the upper inner nozzle I are horizontal, and the spray direction of the upper outer nozzle I is opposite to the spray direction of the upper inner nozzle I. In addition, the bottom nozzles I are arranged at intervals in the same circumferential direction around the central axis of the star wheel disk I, the lower outer nozzles I are arranged at intervals in the same circumferential direction around the central axis of the star wheel disk I, and the lower inner nozzles I are arranged at intervals in the same circumferential direction around the central axis of the star wheel disk I. The spraying direction of the lower outer nozzle I and the spraying direction of the lower inner nozzle I are horizontal directions, and the spraying direction of the lower outer nozzle I is opposite to the spraying direction of the lower inner nozzle I.

[0019] After the nozzles are evenly distributed, the spray range of each nozzle needs to be controlled. In this technical solution, the spray range of the top nozzle I, the spray range of the upper outer nozzle I, and the spray range of the upper inner nozzle I are staggered in the same circumferential direction around the central axis of the star wheel disk I. Similarly, the spray range of the bottom nozzle I, the spray range of the lower outer nozzle I, and the spray range of the lower inner nozzle I are staggered in the same circumferential direction around the central axis of the star wheel disk I. The staggered spray range can prevent the operating areas of each nozzle from overlapping, and obtain a better sterilant spraying effect.

[0020] The output end shielded chamber I is in the sterilization operation stage in a negative pressure state. Ideally, the output end shielded chamber I will recover the overflowed sterilant, but the output end shielded chamber I is downstream of the sterilization chamber. The airflow inside the shell I flows along when the bottle blank passes through the shell I at high speed. In this way, the amount of sterilant that the output end shielded chamber I needs to recover must be greater than the amount of sterilant that the input end shielded chamber I needs to recover. In order to enable the output end air suction unit Ⅰ corresponding to the output end shielding chamber Ⅰ to more effectively serve to recover the sterilant overflowing from the sterilization chamber, rather than the outside air entering from the output port Ⅰ, the shell Ⅰ in the present technical solution is provided with a terminal flow limiting chamber inside, the output end shielding chamber Ⅰ and the terminal flow limiting chamber are arranged one by one in the same circumferential direction around the central axis of the star wheel disk Ⅰ, one end of the terminal flow limiting chamber is connected to the output end shielding chamber Ⅰ, and the other end of the terminal flow limiting chamber is connected to the output port Ⅰ, the width of the terminal flow limiting chamber is greater than the width of the conveying area Ⅰ, and the width of the terminal flow limiting chamber is less than the width of the output end shielding chamber Ⅰ. The working principle of the terminal flow limiting chamber is the same as that of the aforementioned input end flow limiting chamber and the output end flow limiting chamber, both of which suppress the overflow of airflow by controlling the cross-sectional size of the conveying channel.

[0021] The gap between the side shielding chamber and the star wheel is the area where the sealing of the entire shell I is most significantly weakened. In order to suppress the overflow of the sterilant here, an air barrier structure is set in this technical solution, and the isolation effect brought by the air flow is used to suppress the dispersion of the sterilant. Specifically, in this technical solution, the sterilant overflowing from the gap will mix with the air inhaled from the outside and enter the input shielding chamber I and the output shielding chamber I. The final mixed state of the two is fixed in this technical solution, but the time for the mixed state to occur can be extended. The longer the delay, the better the isolation efficiency. Based on this design idea, the shell I is provided with a drainage baffle I, the drainage baffle I is located inside the side shielding chamber, the drainage baffle I is perpendicular to the central axis of the star wheel disk I, and the drainage baffle I is provided with a through hole. The drainage baffle I separates the side shielding chamber into a guide chamber and a transition chamber. The guide chamber is connected with the transition chamber through the through hole on the drainage baffle I, one end of the transition chamber is connected with the input end shielding chamber I through one of the gas transmission ports, and the other end of the transition chamber is connected with the output end shielding chamber I through another gas transmission port. The star wheel disk I is provided with a drainage baffle I. The drainage baffle II extends into the guide chamber, an outer flow limiting channel is formed between one side of the drainage baffle II and the shell I, and an inner flow limiting channel is formed between the other side of the drainage baffle II and the shell I. Both the outer flow limiting channel and the inner flow limiting channel are connected to other parts of the guide chamber, and the outer flow limiting channel is connected to the outside through the gap between the shell I and the star wheel disc I. The input end shielding chamber I, the input end flow limiting chamber, the sterilization chamber, the output end flow limiting chamber, and the output end shielding chamber I are all connected to the inner flow limiting channel through the gap between the shell I and the star wheel disc I. The outer flow limiting channel greatly prolongs the flow path of the air in the side shielding chamber, and the inner flow limiting channel greatly prolongs the flow path of the overflowed sterilant in the side shielding chamber. The increase in the flow path means that the longer the time required for the two to finally mix, on the one hand, the sterilant is not easy to enter the side shielding chamber, and on the other hand, the overflowed sterilant is less likely to overflow the shell I along the flow path of the air in the side shielding chamber.

[0022] After the preform is treated with a sterilizing agent, the sterilizing agent will remain on the surface of the preform. The aforementioned sterilizing agent has strong oxidizing characteristics, which has a negative effect on the material. Once the sterilizing agent remaining in the preform enters the working environment of other processes with the preform, it is very likely to contaminate the entire working environment, which will inevitably bring risks to the filling operation. Actively eliminating this part of the residue and ensuring the cleanliness of the working environment of subsequent processes is imperative in high-volume operation requirements. To this end, this technical solution sets up optimized content for removing the sterilizing agent remaining on the preform. The preform sterilizing device also includes a conveying component II and a drying component. The conveying component II includes a star wheel disk II and a guard plate II. The guard plate II is distributed on one side of the star wheel disk II and the star wheel disk II and the guard plate II are separated to form an arc-shaped conveying area II. The drying component is stationary relative to the guard plate II. The conveying area II is connected and connected with the conveying area I. The drying component is provided with a shell II, an injection component II, and an air suction component II. The shell II is provided with an input end shielding chamber II, a drying chamber, an input end shielding chamber II, and a drying chamber arranged one by one in the same circumferential direction around the central axis of the star wheel disk II. The output end shielding chamber II, the shell II is provided with an input end partition between the input end shielding chamber II and the drying chamber, the input end partition is provided with a through hole, the input end shielding chamber II is connected with the drying chamber through the through hole, the shell II is provided with an output end partition between the drying chamber and the output end shielding chamber II, the output end partition is provided with a through hole, the drying chamber is connected with the output end shielding chamber II through the through hole, the shell II is provided with an input port II connected with the input end shielding chamber II, and an output port II connected with the output end shielding chamber II, the shell II is connected with the shell I The input port II is connected to the output port I, the side of the star wheel II on which the guard plate II is distributed is embedded in the drying component together with the guard plate II, the conveying area II passes through the input end shielding chamber II, the drying chamber, and the output end shielding chamber II, and the conveying area II also passes through the input port II, the output port II, the through hole on the input end partition, and the through hole on the output end partition, the injection assembly II includes an upper injection unit II and a lower injection unit II, the injection range of the upper injection unit II intersects with the upper part of the conveying area II, and the injection range of the lower injection unit II intersects with the conveying area II The lower part of the suction component II comprises an input-end suction unit II and an output-end suction unit II, the input-end suction unit II is provided with two input-end suction parts II, one of which is connected to the upper part of the input-end shielding chamber II, and the other is connected to the lower part of the input-end shielding chamber II, the output-end suction unit II is provided with two output-end suction parts II, one of which is connected to the upper part of the output-end shielding chamber II, and the other is connected to the lower part of the output-end shielding chamber II.The drying component is simpler in structure than the sterilization component. A large amount of sterile hot air will flow into the drying chamber inside the drying component when it is in working state. The sterile hot air will be mixed with the sterilant after contacting the bottle blank. At this time, the sterilant content in the sterile hot air is very low, and the air flow in the shell II can take away all the sterilant.

[0023] In the technical solution, the upper spray unit II is located at the upper part of the drying chamber, and the upper spray unit II includes an upper outer nozzle II and an upper inner nozzle II. The upper outer nozzle II and the upper inner nozzle II are respectively located on both sides of the drying chamber, and the distance from the upper inner nozzle II to the central axis of the star wheel disk II is less than the distance from the upper outer nozzle II to the central axis of the star wheel disk II. The spray direction of the upper outer nozzle II and the spray direction of the upper inner nozzle II are both toward the conveying area II. The upper spray unit II inputs sterile hot air from the upper part of the drying chamber. The lower spray unit II is located at the lower part of the drying chamber, and the lower spray unit II includes a bottom nozzle II and a lower side nozzle II. The bottom nozzle II is located at the bottom of the drying chamber, and the lower side nozzle II is located on the side of the drying chamber. The spray direction of the bottom nozzle II and the spray direction of the lower side nozzle II are both toward the conveying area II. The lower spray unit II inputs sterile hot air from the lower part of the drying chamber.

[0024] In the technical solution, the upper outer nozzles II are arranged at intervals in the same circumferential direction around the central axis of the star wheel disk II, the upper inner nozzles II are arranged at intervals in the same circumferential direction around the central axis of the star wheel disk II, the spraying direction of the upper outer nozzles II and the spraying direction of the upper inner nozzles II are horizontal, and the spraying direction of the upper outer nozzles II is opposite to the spraying direction of the upper inner nozzles II. The bottom nozzles II are arranged at intervals in the same circumferential direction around the central axis of the star wheel disk II, the lower side nozzles II are arranged at intervals in the same circumferential direction around the central axis of the star wheel disk II, the spraying direction of the bottom nozzles II is vertically upward, and the spraying direction of the lower side nozzles II is horizontal.

[0025] In order to promote the orderly flow of the ejected airflow, the spray range of the upper outer nozzle II and the spray range of the upper inner nozzle II are staggered in the same circumferential direction around the central axis of the star wheel disk II. Similarly, the spray range of the bottom nozzle II and the spray range of the lower side nozzle II are staggered in the same circumferential direction around the central axis of the star wheel disk II.

[0026] According to the structure of the preform, especially the depth of the preform, the structure of the airflow entering the interior of the preform can be selectively enhanced. In this technical solution, the upper end spray unit II preferably also includes a top nozzle II, which is located at the top of the drying chamber, and the spray direction of the top nozzle II is toward the conveying area II. That is, the top spray position is set, and the top nozzle II can spray airflow from the vertical direction and toward the interior of the preform. This enhanced structure is most suitable for preforms with greater depth.

[0027] The distribution of the top nozzle II needs to match the distribution of the upper outer nozzle II and the upper inner nozzle II, so as to build an environment conducive to the flow of airflow. To this end, the top nozzle II is arranged at intervals in the same circumferential direction around the central axis of the star wheel disk II, the upper outer nozzle II is arranged at intervals in the same circumferential direction around the central axis of the star wheel disk II, and the upper inner nozzle II is arranged at intervals in the same circumferential direction around the central axis of the star wheel disk II. The spray direction of the top nozzle II is vertically downward, the spray direction of the upper outer nozzle II and the spray direction of the upper inner nozzle II are horizontal, and the spray direction of the upper outer nozzle II is opposite to the spray direction of the upper inner nozzle II.

[0028] The working process of the top nozzle II needs to coordinate with the working process of the upper outer nozzle II and the upper inner nozzle II. For this reason, in the present technical solution, the spray range of the top nozzle II, the spray range of the upper outer nozzle II, and the spray range of the upper inner nozzle II are staggered in the same circumferential direction around the central axis of the star wheel disk II.

[0029] In order to fully spray the airflow, the lower side nozzle II includes a lower outer nozzle II and a lower inner nozzle II. The lower outer nozzle II and the lower inner nozzle II are respectively located on both sides of the drying chamber. The distance from the lower inner nozzle II to the central axis of the star wheel disk II is smaller than the distance from the lower outer nozzle II to the central axis of the star wheel disk II. The spraying directions of the lower outer nozzle II and the lower inner nozzle II are both toward the conveying area II.

[0030] Furthermore, the lower outer nozzles II are arranged at intervals in the same circumferential direction around the central axis of the star wheel disk II, and the lower inner nozzles II are arranged at intervals in the same circumferential direction around the central axis of the star wheel disk II. The spraying direction of the lower outer nozzle II and the spraying direction of the lower inner nozzle II are horizontal directions, and the spraying direction of the lower outer nozzle II is opposite to the spraying direction of the lower inner nozzle II.

[0031] In order to promote the orderly flow of the ejected airflow, the spray range of the lower outer nozzle II and the spray range of the lower inner nozzle II are staggered in the same circumferential direction around the central axis of the star wheel disk II.

[0032] The second technical solution.

[0033] The difference from the first technical solution is that the working mode of the side shielding chamber is changed from negative pressure exhaust to positive pressure blowing.

[0034] In the technical scheme, the preform sterilizing device comprises a conveying component I and a sterilizing component, wherein the conveying component I comprises a star wheel disc I and a guard plate I, wherein the star wheel disc I is provided with a conveying groove I which is distributed in an annular shape, wherein the guard plate I is distributed on one side of the star wheel disc I and the star wheel disc I and the guard plate I are spaced apart to form an arc-shaped conveying area I, wherein the sterilizing component is stationary relative to the guard plate I, wherein the sterilizing component comprises a shell I, an injection assembly I, an air suction assembly I, and an air barrier air supply assembly, wherein the shell I is provided with an input end shielding chamber I, an input end current limiting chamber, a sterilizing chamber, an output end current limiting chamber, an output end shielding chamber I, and an input end shielding chamber arranged one by one in the same circumferential direction around the central axis of the star wheel disc I. The side shielding chamber is on the same side of the shielding chamber I, the input end current limiting chamber, the sterilization chamber, the output end current limiting chamber, and the output end shielding chamber I, the width of the input end current limiting chamber and the width of the output end current limiting chamber are both greater than the width of the conveying area I, and the width of the input end current limiting chamber and the width of the output end current limiting chamber are both smaller than the width of the input end shielding chamber I, the width of the sterilization chamber, and the width of the output end shielding chamber I, the length of the input end current limiting chamber and the length of the output end current limiting chamber are both greater than the spacing between adjacent conveying grooves I, the shell I is provided with an input port I connected to the input end shielding chamber I, and an output port I connected to the output end shielding chamber I, the star wheel disk I is distributed with a guard plate I on this side and the guard plate I is connected to the guard plate I on this side. The plate Ⅰ is embedded in the sterilization component together, the conveying area Ⅰ passes through the input end shielding chamber Ⅰ, the input end current limiting chamber, the sterilization chamber, the output end current limiting chamber, the output end shielding chamber Ⅰ, and the conveying area Ⅰ also passes through the input port Ⅰ and the output port Ⅰ, the injection component Ⅰ includes an upper injection unit Ⅰ and a lower injection unit Ⅰ, the injection range of the upper injection unit Ⅰ is located in the sterilization chamber and intersects with the upper part of the conveying area Ⅰ, the injection range of the lower injection unit Ⅰ is located in the sterilization chamber and intersects with the lower part of the conveying area Ⅰ, the suction component Ⅰ includes an input end suction unit Ⅰ and an output end suction unit Ⅰ, the input end suction unit Ⅰ is provided with at least two input end suction parts Ⅰ, one of which is an input end The suction part I is connected to the upper part of the input end shielding chamber I, and the other input end suction part I is connected to the lower part of the input end shielding chamber I. The output end suction unit I is provided with two output end suction parts I, one of which is connected to the upper part of the output end shielding chamber I, and the other is connected to the lower part of the output end shielding chamber I. The output end of the air barrier air supply assembly is connected to the shell I and the inside of the output end of the air barrier air supply assembly is connected to the side shielding chamber. The input end shielding chamber I, the input end current limiting chamber, the sterilization chamber, the output end current limiting chamber, and the output end shielding chamber I are all connected to the side shielding chamber through the gap between the shell I and the star wheel disk I.

[0035] The main function of the preform sterilization device is to transport the preform as part of the blow-fill-seal integrated device and sterilize the preform at the same time. The conveying component I in the preform sterilization device is the same as the structure of the star wheel disc in the prior art for conveying the preform; the sterilization component is different from the technical solutions in the same technical field in the prior art based on substantial differences. The input end shielding chamber I, the input end current limiting chamber, the sterilization chamber, the output end current limiting chamber, the output end shielding chamber I and the side shielding chamber are continuously distributed inside the shell I. The sterilization chamber directly cooperates with the sterilization operation, and the sterilizer is filled in the entire sterilization chamber. After the preform passes through the sterilization chamber along the conveying area I, the preform is completely immersed in the sterilizer, which will undoubtedly sterilize the outer wall of the preform. At the same time, after the immersion contact sterilizer, the sterilizer will be forced to enter the inner wall of the preform as the sterilizer flows, thereby achieving the technical purpose of comprehensive sterilization operation.

[0036] During the sterilization operation, the sterilizing agent will be continuously input into the sterilization chamber, so that the air pressure inside the sterilization chamber is greater than the air pressure outside the shell I, and the sterilization chamber is in a positive pressure state. Maintaining the positive pressure state of the sterilization chamber requires controlling the overflow amount of the sterilizing agent from the sterilization chamber, which consists of two parts, one is the static overflow amount and the other is the dynamic overflow amount. The static overflow amount comes from the sterilizing agent overflowing from the gap between the shell I and the star wheel; the dynamic overflow amount comes from the sterilizing agent overflowing from the connecting structure between the sterilization chamber and other chambers. For example, when the sterilization chamber and the input-end limiting chamber are in a state of unobstructed connection, the sterilizing agent will enter the input-end limiting chamber without hindrance, and when the sterilization chamber and the output-end limiting chamber are in a state of unobstructed connection, the sterilizing agent will enter the output-end limiting chamber without hindrance. The dynamic overflow amount decreases after the bottle blank enters the input-end limiting chamber and the output-end limiting chamber. The technical solution maintains the positive pressure state of the sterilization chamber by controlling the dynamic overflow amount.

[0037] The input-end flow limiting chamber and the output-end flow limiting chamber are narrower and longer than other chambers. Their ideal cross-sectional characteristics should be consistent with the contour of the bottle blank. However, due to cost considerations, their cross-sections are designed to be long strips that tend to the contour of the bottle blank. When the bottle blank is placed in the input-end flow limiting chamber and the output-end flow limiting chamber, the technical effect of the bottle blank blocking the input-end flow limiting chamber and the output-end flow limiting chamber should be formed. In this way, the degree of connectivity between the sterilization chamber and the outside world will be significantly reduced. After all, the lower the degree of connectivity between the sterilization chamber and the outside world, the less sterilizing agent overflows. When the star wheel drives the bottle blanks forward, there is a distance between adjacent bottle blanks. If the length of the input-end limiting chamber and the length of the output-end limiting chamber are both smaller than the distance between adjacent bottle blanks, there will be a situation where one of the two adjacent bottle blanks is located in the sterilization chamber and the other is located in the input-end shielding chamber I, or there will be a situation where one of the two adjacent bottle blanks is located in the sterilization chamber and the other is located in the output-end shielding chamber I. In this case, the space between the adjacent bottle blanks will make the input-end limiting chamber and the output-end limiting chamber unobstructed, and the sterilizing agent from the sterilization chamber can easily flow from the input-end limiting chamber and the output-end limiting chamber to the output chamber in a low-pressure state. The input shielding chamber I and the output shielding chamber I overflow. In order to reduce the dynamic overflow, in the technical solution, the length of the input limiting chamber and the length of the output limiting chamber are both greater than the spacing between adjacent conveying grooves I. During conveying, the preforms are stuck in the conveying grooves I of each star wheel disc. Therefore, relative to the length of the input limiting chamber and the length of the output limiting chamber, they are both greater than the spacing between adjacent preforms. This ensures that there will be a preform in the input limiting chamber and the output limiting chamber at any time, ensuring that the smoothness of the input limiting chamber and the output limiting chamber is at the lowest state, and only allowing an appropriate amount of sterilizing agent to overflow from the input limiting chamber and the output limiting chamber. Therefore, through the flow limiting control of the input limiting chamber and the output limiting chamber, the sterilization chamber can maintain a relatively closed state, and the sterilizing agent dissipation process inside it can be controlled.

[0038] The sterilizing agent will overflow the sterilizing chamber under the positive pressure state of the sterilizing chamber. The negative impact of the sterilizing agent in the aseptic filling environment has been recorded above, so the overflowing sterilizing agent must be controlled to avoid disorderly overflow. In this technical solution, a relatively closed sterilization environment is constructed in conjunction with the sterilization chamber, and the sterilizing agent overflowing from the sterilization chamber needs to be forcibly recovered. The forced recovery process is based on the forced recovery structure constructed by the input end shielding chamber I, the output end shielding chamber I, and the side shielding chamber. Under the action of the suction component I, the input end shielding chamber I and the output end shielding chamber I will be in a negative pressure state where the internal air pressure is less than the air pressure outside the shell I. The sterilizing agent overflowing from the input end limiting chamber and the output end limiting chamber enters the input end shielding chamber I and the output end shielding chamber I respectively, and is finally drawn away. The side shielding chamber is independent of the input shielding chamber I, the sterilization chamber, and the output shielding chamber I. It is supplied with sterile air by the air barrier air supply assembly, and the air pressure is greater than the air pressure of the sterilization chamber, the air pressure of the input shielding chamber I, and the air pressure of the output shielding chamber I. Therefore, the sterilizing agent is blocked inside the sterilizing chamber and will not overflow from the gap between the shell I and the star wheel. Also affected by the pressure difference, the gas in the input shielding chamber I and the output shielding chamber I is also blocked and will not enter the side shielding chamber. This prevents the sterilizing agent from being scattered in a disorderly manner and ensures that the sterilizing agent is within a controllable range.

[0039] In the technical solution, the upper spray unit I is located at the upper part of the sterilization chamber, and the upper spray unit I includes a top nozzle I and an upper side nozzle I. The top nozzle I is located at the top of the sterilization chamber, and the upper side nozzle I is located at the side of the sterilization chamber. The spray direction of the top nozzle I and the spray direction of the upper side nozzle I are both toward the conveying area I. In the technical solution, the lower spray unit I is located at the lower part of the sterilization chamber, and the lower spray unit I includes a bottom nozzle I and a lower side nozzle I. The bottom nozzle I is located at the bottom of the sterilization chamber, and the lower side nozzle I is located at the side of the sterilization chamber. The spray direction of the bottom nozzle I and the spray direction of the lower side nozzle I are both toward the conveying area I. The top nozzle I is responsible for spraying the sterilant from top to bottom, and the bottom nozzle I is responsible for spraying the sterilant from bottom to top. The upper side nozzle I and the lower side nozzle I are responsible for spraying the sterilant from the side, so as to facilitate the sterilization chamber to be quickly filled with the sterilizing agent.

[0040] In order to drive the preform to rotate when the star wheel drives the preform forward, the sterilization component is provided with a brake, which is distributed in the housing I and extends into the upper part of the conveying area I, and the brake is located on one side of the conveying area I, and at least one upper side nozzle I is located on the other side of the conveying area I. After the preform rotates, the contact between the preform and the sterilizing agent will become more uniform, and the surface of the preform will be fully exposed to the sterilizing agent during the rotation of the preform, thereby eliminating the dead angle of the sterilization operation.

[0041] The length of the sterilization chamber is much larger than the spacing between adjacent conveying grooves on the star wheel disk. Therefore, the sterilization chamber has a significant length feature. Obviously, a single number of nozzles will greatly waste the sterilization chamber with large-size space conditions. Therefore, a plurality of nozzle structures are provided in the present technical solution. Specifically, the top nozzles I are arranged at intervals in the same circumferential direction around the central axis of the star wheel disk I, and the upper side nozzles I are arranged at intervals in the same circumferential direction around the central axis of the star wheel disk I. The spray direction of the top nozzles I is vertically downward, and the spray direction of the upper side nozzles I is horizontal. In addition, the bottom nozzles I are arranged at intervals in the same circumferential direction around the central axis of the star wheel disk I, and the lower side nozzles I are arranged at intervals in the same circumferential direction around the central axis of the star wheel disk I. The spray direction of the bottom nozzles I is vertically upward, and the spray direction of the lower side nozzles I is horizontal.

[0042] The nozzles facing each other easily generate turbulence, which is not conducive to obtaining an orderly airflow. To avoid this problem, the spray range of the top nozzle I and the spray range of the upper side nozzle I in the technical solution are staggered in the same circumferential direction around the central axis of the star wheel disk I. In addition, the spray range of the bottom nozzle I and the spray range of the lower side nozzle I are staggered in the same circumferential direction around the central axis of the star wheel disk I. After the positions are staggered, the airflow path can be predicted, which makes it easier to calculate the degree of contact between the sterilizer and the preform, so as to adjust to the most reasonable conveying process.

[0043] The sterilization chamber is in a highly closed state in the shell I. The structural conditions provided by the multi-angle nozzles installed on the shell I are that the side nozzles can be one group, two groups, or even multiple groups. In theory, the more nozzles there are, the more conducive it is to keep the sterilization chamber full of sterilizing agent and the positive pressure state of the sterilization chamber. However, considering that the preform moves at high speed in the sterilization chamber, the number of nozzles should match the movement characteristics of the preform to avoid the situation where only individual nozzles are effective. The upper side nozzle I includes an upper outer nozzle I and an upper inner nozzle I. The upper outer nozzle I and the upper inner nozzle I are respectively located on both sides of the sterilization chamber. The distance from the upper inner nozzle I to the central axis of the star wheel disk I is less than the distance from the upper outer nozzle I to the central axis of the star wheel disk I. The spray direction of the upper outer nozzle I and the spray direction of the upper inner nozzle I are both toward the conveying area I. In addition, the lower side nozzle I includes a lower outer nozzle I and a lower inner nozzle I, and the lower outer nozzle I and the lower inner nozzle I are respectively located on both sides of the sterilization chamber, and the distance from the lower inner nozzle I to the central axis of the star wheel disk I is smaller than the distance from the lower outer nozzle I to the central axis of the star wheel disk I, and the injection direction of the lower outer nozzle I and the injection direction of the lower inner nozzle I are both toward the conveying area I.

[0044] When the number of nozzles increases, a better nozzle installation structure can be obtained through the position arrangement characteristics between each other to avoid uneven distribution of nozzles. To this end, the top nozzles I are arranged at intervals in the same circumferential direction around the central axis of the star wheel disk I, the upper outer nozzles I are arranged at intervals in the same circumferential direction around the central axis of the star wheel disk I, and the upper inner nozzles I are arranged at intervals in the same circumferential direction around the central axis of the star wheel disk I. The spray direction of the top nozzle I is vertically downward, the spray direction of the upper outer nozzle I and the spray direction of the upper inner nozzle I are horizontal, and the spray direction of the upper outer nozzle I is opposite to the spray direction of the upper inner nozzle I. In addition, the bottom nozzles I are arranged at intervals in the same circumferential direction around the central axis of the star wheel disk I, the lower outer nozzles I are arranged at intervals in the same circumferential direction around the central axis of the star wheel disk I, and the lower inner nozzles I are arranged at intervals in the same circumferential direction around the central axis of the star wheel disk I. The spraying direction of the lower outer nozzle I and the spraying direction of the lower inner nozzle I are horizontal directions, and the spraying direction of the lower outer nozzle I is opposite to the spraying direction of the lower inner nozzle I.

[0045] After the nozzles are evenly distributed, the spray range of each nozzle needs to be controlled. In this technical solution, the spray range of the top nozzle I, the spray range of the upper outer nozzle I, and the spray range of the upper inner nozzle I are staggered in the same circumferential direction around the central axis of the star wheel disk I. Similarly, the spray range of the bottom nozzle I, the spray range of the lower outer nozzle I, and the spray range of the lower inner nozzle I are staggered in the same circumferential direction around the central axis of the star wheel disk I. The staggered spray range can prevent the operating areas of each nozzle from overlapping, and obtain a better sterilant spraying effect.

[0046] The output end shielded chamber I is in the sterilization operation stage in a negative pressure state. Ideally, the output end shielded chamber I will recover the overflowed sterilant, but the output end shielded chamber I is downstream of the sterilization chamber. The airflow inside the shell I flows along when the bottle blank passes through the shell I at high speed. In this way, the amount of sterilant that the output end shielded chamber I needs to recover must be greater than the amount of sterilant that the input end shielded chamber I needs to recover. In order to enable the output end air suction unit Ⅰ corresponding to the output end shielding chamber Ⅰ to more effectively serve to recover the sterilant overflowing from the sterilization chamber, rather than the outside air entering from the output port Ⅰ, the shell Ⅰ in the present technical solution is provided with a terminal flow limiting chamber inside, the output end shielding chamber Ⅰ and the terminal flow limiting chamber are arranged one by one in the same circumferential direction around the central axis of the star wheel disk Ⅰ, one end of the terminal flow limiting chamber is connected to the output end shielding chamber Ⅰ, and the other end of the terminal flow limiting chamber is connected to the output port Ⅰ, the width of the terminal flow limiting chamber is greater than the width of the conveying area Ⅰ, and the width of the terminal flow limiting chamber is less than the width of the output end shielding chamber Ⅰ. The working principle of the terminal flow limiting chamber is the same as that of the aforementioned input end flow limiting chamber and the output end flow limiting chamber, both of which suppress the overflow of airflow by controlling the cross-sectional size of the conveying channel.

[0047] The gap between the side shielding chamber and the star disk is the area where the sealing of the entire shell I is most obviously weakened. In order to suppress the overflow of the sterilant here, in the present technical solution, an air barrier structure is set up to suppress the scattering of the sterilant through the isolation effect brought by the air flow. Specifically, in the present technical solution, sterile air is used to block the diffusion of the sterilant in a positive pressure manner, and at the same time, the difficulty of the diffusion of the sterilant is increased by extending the air flow path. Based on this design idea, a drainage baffle I is provided on the shell I, and the drainage baffle I is located inside the side shielding chamber. The drainage baffle I is perpendicular to the central axis of the star disk I. A through hole is provided on the drainage baffle I. The drainage baffle I separates the side shielding chamber into a guide chamber and a transition chamber. The output end of the air barrier air supply assembly is connected to the transition chamber. A drainage baffle II is provided on the star disk I, and the drainage baffle II extends into the guide chamber. One side of the drainage baffle II An outer flow limiting channel is formed between the shell body I, and an inner flow limiting channel is formed between the other side of the drainage baffle II and the shell body I. Both the outer flow limiting channel and the inner flow limiting channel are connected with other parts of the guide chamber. The outer flow limiting channel is connected with the outside through the gap between the shell body I and the star wheel disk I. The input end shielding chamber I, the input end flow limiting chamber, the sterilization chamber, the output end flow limiting chamber, and the output end shielding chamber I are all connected with the inner flow limiting channel through the gap between the shell body I and the star wheel disk I.

[0048] The outer flow restriction channel greatly extends the flow path of the sterile air from the transition chamber in the side shielding chamber.

[0049] The inner flow limiting channel greatly extends the flow path of the sterile air from the transition chamber in the side shielding chamber. The increase in the flow path means that it is very difficult for the sterilant to pass through the side shielding chamber, which can effectively prevent the sterilant from overflowing.

[0050] After the preform is treated with a sterilizing agent, the sterilizing agent will remain on the surface of the preform. The aforementioned sterilizing agent has strong oxidizing characteristics, which has a negative effect on the material. Once the sterilizing agent remaining in the preform enters the working environment of other processes with the preform, it is very likely to contaminate the entire working environment, which will inevitably bring risks to the filling operation. Actively eliminating this part of the residue and ensuring the cleanliness of the working environment of subsequent processes is imperative in high-volume operation requirements. To this end, this technical solution sets up optimized content for removing the sterilizing agent remaining on the preform. The preform sterilizing device also includes a conveying component II and a drying component. The conveying component II includes a star wheel disk II and a guard plate II. The guard plate II is distributed on one side of the star wheel disk II and the star wheel disk II and the guard plate II are separated to form an arc-shaped conveying area II. The drying component is stationary relative to the guard plate II. The conveying area II is connected and connected with the conveying area I. The drying component is provided with a shell II, an injection component II, and an air suction component II. The shell II is provided with an input end shielding chamber II, a drying chamber, an input end shielding chamber II, and a drying chamber arranged one by one in the same circumferential direction around the central axis of the star wheel disk II. The output end shielding chamber II, the shell II is provided with an input end partition between the input end shielding chamber II and the drying chamber, the input end partition is provided with a through hole, the input end shielding chamber II is connected with the drying chamber through the through hole, the shell II is provided with an output end partition between the drying chamber and the output end shielding chamber II, the output end partition is provided with a through hole, the drying chamber is connected with the output end shielding chamber II through the through hole, the shell II is provided with an input port II connected with the input end shielding chamber II, and an output port II connected with the output end shielding chamber II, the shell II is connected with the shell I The input port II is connected to the output port I, the side of the star wheel II on which the guard plate II is distributed is embedded in the drying component together with the guard plate II, the conveying area II passes through the input end shielding chamber II, the drying chamber, and the output end shielding chamber II, and the conveying area II also passes through the input port II, the output port II, the through hole on the input end partition, and the through hole on the output end partition, the injection assembly II includes an upper injection unit II and a lower injection unit II, the injection range of the upper injection unit II intersects with the upper part of the conveying area II, and the injection range of the lower injection unit II intersects with the conveying area II The lower part of the suction component II comprises an input-end suction unit II and an output-end suction unit II, the input-end suction unit II is provided with two input-end suction parts II, one of which is connected to the upper part of the input-end shielding chamber II, and the other is connected to the lower part of the input-end shielding chamber II, the output-end suction unit II is provided with two output-end suction parts II, one of which is connected to the upper part of the output-end shielding chamber II, and the other is connected to the lower part of the output-end shielding chamber II.The drying component is simpler in structure than the sterilization component. A large amount of sterile hot air will flow into the drying chamber inside the drying component when it is in working state. The sterile hot air will be mixed with the sterilant after contacting the bottle blank. At this time, the sterilant content in the sterile hot air is very low, and the air flow in the shell II can take away all the sterilant.

[0051] In the technical solution, the upper spray unit II is located at the upper part of the drying chamber, and the upper spray unit II includes an upper outer nozzle II and an upper inner nozzle II. The upper outer nozzle II and the upper inner nozzle II are respectively located on both sides of the drying chamber, and the distance from the upper inner nozzle II to the central axis of the star wheel disk II is less than the distance from the upper outer nozzle II to the central axis of the star wheel disk II. The spray direction of the upper outer nozzle II and the spray direction of the upper inner nozzle II are both toward the conveying area II. The upper spray unit II inputs sterile hot air from the upper part of the drying chamber. The lower spray unit II is located at the lower part of the drying chamber, and the lower spray unit II includes a bottom nozzle II and a lower side nozzle II. The bottom nozzle II is located at the bottom of the drying chamber, and the lower side nozzle II is located on the side of the drying chamber. The spray direction of the bottom nozzle II and the spray direction of the lower side nozzle II are both toward the conveying area II. The lower spray unit II inputs sterile hot air from the lower part of the drying chamber.

[0052] In the technical solution, the upper outer nozzles II are arranged at intervals in the same circumferential direction around the central axis of the star wheel disk II, the upper inner nozzles II are arranged at intervals in the same circumferential direction around the central axis of the star wheel disk II, the spraying direction of the upper outer nozzles II and the spraying direction of the upper inner nozzles II are horizontal, and the spraying direction of the upper outer nozzles II is opposite to the spraying direction of the upper inner nozzles II. The bottom nozzles II are arranged at intervals in the same circumferential direction around the central axis of the star wheel disk II, the lower side nozzles II are arranged at intervals in the same circumferential direction around the central axis of the star wheel disk II, the spraying direction of the bottom nozzles II is vertically upward, and the spraying direction of the lower side nozzles II is horizontal.

[0053] In order to promote the orderly flow of the ejected airflow, the spray range of the upper outer nozzle II and the spray range of the upper inner nozzle II are staggered in the same circumferential direction around the central axis of the star wheel disk II. Similarly, the spray range of the bottom nozzle II and the spray range of the lower side nozzle II are staggered in the same circumferential direction around the central axis of the star wheel disk II.

[0054] According to the structure of the preform, especially the depth of the preform, the structure of the airflow entering the interior of the preform can be selectively enhanced. In this technical solution, the upper end spray unit II preferably also includes a top nozzle II, which is located at the top of the drying chamber, and the spray direction of the top nozzle II is toward the conveying area II. That is, the top spray position is set, and the top nozzle II can spray airflow from the vertical direction and toward the interior of the preform. This enhanced structure is most suitable for preforms with greater depth.

[0055] The distribution of the top nozzle II needs to match the distribution of the upper outer nozzle II and the upper inner nozzle II, so as to build an environment conducive to the flow of airflow. To this end, the top nozzle II is arranged at intervals in the same circumferential direction around the central axis of the star wheel disk II, the upper outer nozzle II is arranged at intervals in the same circumferential direction around the central axis of the star wheel disk II, and the upper inner nozzle II is arranged at intervals in the same circumferential direction around the central axis of the star wheel disk II. The spray direction of the top nozzle II is vertically downward, the spray direction of the upper outer nozzle II and the spray direction of the upper inner nozzle II are horizontal, and the spray direction of the upper outer nozzle II is opposite to the spray direction of the upper inner nozzle II.

[0056] The working process of the top nozzle II needs to coordinate with the working process of the upper outer nozzle II and the upper inner nozzle II. For this reason, in the present technical solution, the spray range of the top nozzle II, the spray range of the upper outer nozzle II, and the spray range of the upper inner nozzle II are staggered in the same circumferential direction around the central axis of the star wheel disk II.

[0057] In order to fully spray the airflow, the lower side nozzle II includes a lower outer nozzle II and a lower inner nozzle II. The lower outer nozzle II and the lower inner nozzle II are respectively located on both sides of the drying chamber. The distance from the lower inner nozzle II to the central axis of the star wheel disk II is smaller than the distance from the lower outer nozzle II to the central axis of the star wheel disk II. The spraying directions of the lower outer nozzle II and the lower inner nozzle II are both toward the conveying area II.

[0058] Furthermore, the lower outer nozzles II are arranged at intervals in the same circumferential direction around the central axis of the star wheel disk II, and the lower inner nozzles II are arranged at intervals in the same circumferential direction around the central axis of the star wheel disk II. The spraying direction of the lower outer nozzle II and the spraying direction of the lower inner nozzle II are horizontal directions, and the spraying direction of the lower outer nozzle II is opposite to the spraying direction of the lower inner nozzle II.

[0059] In order to promote the orderly flow of the ejected airflow, the spray range of the lower outer nozzle II and the spray range of the lower inner nozzle II are staggered in the same circumferential direction around the central axis of the star wheel disk II.

[0060] The present invention adopts the above technical solution: the bottle blank sterilization device provides a sterilization chamber with a high degree of closure and places the sterilization chamber on the bottle blank conveying path. The bottle blank is immersed in the sterilizer, thereby obtaining a treatment effect of full contact with the sterilizer, so that the sterilization treatment operation of the bottle blank can achieve very good work efficiency and work quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0061] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0062] Figure 1 It is a three-dimensional diagram of a first embodiment of a preform sterilizing device of the present invention;

[0063] Figure 2 Schematic diagram of the assembly of the conveying component I and the sterilizing component of the first embodiment of the bottle blank sterilizing device of the present invention Figure Ⅰ ;

[0064] Figure 3 It is a structural schematic diagram of a conveying component I of a first embodiment of a preform sterilizing device of the present invention;

[0065] Figure 4 The upper part of the housing I of the sterilization component of the first embodiment of the bottle blank sterilization device of the present invention is schematically shown. Figure Ⅰ ;

[0066] Figure 5 The upper part of the housing I of the sterilization component of the first embodiment of the bottle blank sterilization device of the present invention is schematically shown. Figure II ;

[0067] Figure 6 The upper part of the housing I of the sterilization component of the first embodiment of the bottle blank sterilization device of the present invention is schematically shown. Figure III ;

[0068] Figure 7 The upper part of the housing I of the sterilization component of the first embodiment of the bottle blank sterilization device of the present invention is schematically shown. Figure IV ;

[0069] Figure 8 The lower half structure of the housing I of the sterilization component of the first embodiment of the bottle blank sterilization device of the present invention is schematically shown. Figure Ⅰ ;

[0070] Fig. 9 The lower half structure of the housing I of the sterilization component of the first embodiment of the bottle blank sterilization device of the present invention is schematically shown. Figure II ;

[0071] Fig.10The lower half structure of the housing I of the sterilization component of the first embodiment of the bottle blank sterilization device of the present invention is schematically shown. Figure III ;

[0072] Fig.11 Schematic diagram of the assembly of the conveying component I and the sterilizing component of the first embodiment of the bottle blank sterilizing device of the present invention Figure II ;

[0073] Fig.12 for Fig.11 A local enlarged view at point A;

[0074] Fig.13 It is a schematic diagram of assembling the conveying component II and the drying component of the first embodiment of a preform sterilizing device of the present invention;

[0075] Fig.14 The upper part of the structure of the drying component of the first embodiment of the bottle blank sterilizing device of the present invention is shown in FIG. Figure Ⅰ ;

[0076] Fig.15 The upper part of the structure of the drying component of the first embodiment of the bottle blank sterilizing device of the present invention is shown in FIG. Figure II ;

[0077] Fig.16 The upper part of the structure of the drying component of the first embodiment of the bottle blank sterilizing device of the present invention is shown in FIG. Figure III ;

[0078] Fig.17 The lower half structure of the housing II of the drying component of the first embodiment of the preform sterilizing device of the present invention is schematically shown. Figure Ⅰ ;

[0079] Fig.18 The lower half structure of the housing II of the drying component of the first embodiment of the preform sterilizing device of the present invention is schematically shown. Figure II . DETAILED DESCRIPTION

[0080] like Figures 1 to 8 As shown, the first embodiment of the present invention.

[0081] The working environment of the preform sterilization device is inside the blowing, filling and capping integrated equipment, so the way of conveying materials should also adopt the method of rotary handover. The preform sterilization device includes conveying component Ⅰ1, sterilizing component 6, conveying component Ⅱ33, and drying component 34, among which conveying component Ⅰ1 and sterilizing component 6 correspond to the sterilization station of the preform sterilization device, and conveying component Ⅱ33 and drying component 34 correspond to the drying station of the preform sterilization device. The preform is first sterilized in the sterilization station, and then removed from the surface of the preform by the drying station. Finally, the preform is sent to the rotary bottle blowing device of the blowing and capping integrated equipment in a sterile state.

[0082] The conveying component Ⅰ1 is provided with a star wheel disc Ⅰ2 and a guard plate Ⅰ4. The star wheel disc Ⅰ2 is driven by the driving structure to rotate. The star wheel disc Ⅰ2 is in the shape of a disk as a whole, and a conveying groove Ⅰ is provided on its edge. The conveying groove Ⅰ is continuously arranged on the edge of the star wheel disc Ⅰ2 to form a ring-shaped distribution structure. The spatial position of the guard plate Ⅰ4 is fixed. It can be fixed on the frame structure of the conveying component Ⅰ1. When the star wheel disc Ⅰ2 rotates, the guard plate Ⅰ4 is always located on one side of the star wheel disc Ⅰ2. The star wheel disc Ⅰ2 and the guard plate Ⅰ4 are separated to form an arc-shaped conveying area Ⅰ5 for the bottle blank to pass through; during conveying, the bottle blank's mouth is embedded in the conveying groove Ⅰ, and one side of the bottle blank is supported by the star wheel disc Ⅰ2 and the other side is supported by the guard plate Ⅰ4.

[0083] The sterilization component 6 is installed on the conveying component I1 in a fixed spatial position. Like the guard plate I4, it is fixed in spatial position and unchanged in spatial posture, and the two are relatively static. The guard plate I4 is arc-shaped as a whole, and its center is located on the central axis of the rotation of the star wheel disc I2. The side of the star wheel disc I2 where the guard plate I4 is distributed is embedded in the sterilization component 6 together with the guard plate I4.

[0084] The sterilization component 6 includes a housing Ⅰ7, an injection assembly Ⅰ, and an air suction assembly Ⅰ. The housing Ⅰ7 is used to construct a highly closed space on the conveying area Ⅰ5; the injection assembly Ⅰ is used to inject the sterilant into the aforementioned space; and the air suction assembly Ⅰ is used to forcibly recover the sterilant.

[0085] The shell Ⅰ7 includes two parts, the upper and lower parts, which are fixedly mounted on the upper and lower sides of the guard plate Ⅰ4 respectively. The shell Ⅰ7 is wrapped around the outside of the conveying area Ⅰ5. The shell Ⅰ7 is provided with an input end shielding chamber Ⅰ8, an input end current limiting chamber 10, a sterilization chamber 11, an output end current limiting chamber 12, an output end shielding chamber Ⅰ13, and a terminal current limiting chamber 14 arranged one by one in the same circumferential direction around the central axis of the star wheel disc Ⅰ2, and a side shielding chamber 15 located on the same side of the input end shielding chamber Ⅰ8, the input end current limiting chamber 10, the sterilization chamber 11, the output end current limiting chamber 12, the output end shielding chamber Ⅰ13, and the terminal current limiting chamber 14. After the bottle blank enters the shell Ⅰ7, it first enters the input end shielding chamber Ⅰ8, then enters the input end current limiting chamber 10, then enters the sterilization chamber 11, passes through the output end current limiting chamber 12, and then enters the output end shielding chamber Ⅰ13, and finally passes through the terminal current limiting chamber 14 and leaves the shell Ⅰ7.

[0086] The width of the input-end limiting chamber 10, the width of the output-end limiting chamber 12, and the width of the terminal limiting chamber 14 are all greater than the width of the conveying area Ⅰ5, and the width of the input-end limiting chamber 10, the width of the output-end limiting chamber 12, and the width of the terminal limiting chamber 14 are all smaller than the width of the input-end shielding chamber Ⅰ8, the width of the sterilization chamber 11, and the width of the output-end shielding chamber Ⅰ13. The length of the input-end limiting chamber 10 and the length of the output-end limiting chamber 12 are both greater than the spacing between adjacent conveying grooves Ⅰ on the star wheel disc Ⅰ2. The housing Ⅰ7 is provided with an input port Ⅰ9 communicating with the input-end shielding chamber Ⅰ8, and an output port Ⅰ17 communicating with the terminal limiting chamber 14. The conveying area I5 passes through the input end shielding chamber I8, the input end current limiting chamber 10, the sterilization chamber 11, the output end current limiting chamber 12, the output end shielding chamber I13, and the terminal current limiting chamber 14, and the conveying area I5 also passes through the input port I9 and the output port I17.

[0087] The side shielding chamber 15 is closer to the central axis of the star wheel disc Ⅰ2 than other chambers. The side shielding chamber 15 is distributed on one side of the input end shielding chamber Ⅰ8, the input end current limiting chamber 10, the sterilization chamber 11, the output end current limiting chamber 12, and the output end shielding chamber Ⅰ13, so its structure is a narrow and long structure. Two gas inlets 16 are arranged inside the shell Ⅰ7, one end of the side shielding chamber 15 is connected to the input end shielding chamber Ⅰ8 through one of the gas inlets 16, and the other end of the side shielding chamber 15 is connected to the output end shielding chamber Ⅰ13 through the other gas inlet 16. Since the shell Ⅰ7 and the star wheel disc Ⅰ2 are not directly connected, the star wheel disc Ⅰ2 will be in a rotating state relative to the shell Ⅰ7, so there is a gap between the two. The aforementioned input end shielding chamber Ⅰ8, input end current limiting chamber 10, sterilization chamber 11, output end current limiting chamber 12, output end shielding chamber Ⅰ13, and end current limiting chamber are all connected to the side shielding chamber 15 through the gap between the shell Ⅰ7 and the star wheel disk Ⅰ2.

[0088] The housing Ⅰ7 is provided with a drainage baffle Ⅰ28. The drainage baffle Ⅰ28 is located inside the side shielding chamber 15, and the drainage baffle Ⅰ28 is perpendicular to the central axis of the star wheel disc Ⅰ2, and a through hole is provided on the drainage baffle Ⅰ28. The drainage baffle Ⅰ28 separates the side shielding chamber 15 into a guide chamber 29 and a transition chamber 30. The guide chamber 29 is connected to the transition chamber 30 through the through hole on the drainage baffle Ⅰ28. One end of the transition chamber 30 is connected to the input end shielding chamber Ⅰ8 through one of the gas transmission ports 16, and the other end of the transition chamber 30 is connected to the output end shielding chamber Ⅰ13 through another gas transmission port 16. Two drainage baffles Ⅱ49 are provided on the star wheel disc Ⅰ2, and the drainage baffles Ⅱ49 are annular in structure as a whole, and the centers of the two drainage baffles Ⅱ49 are at the same position, so the drainage baffle Ⅱ49 with a smaller radius is located inside the drainage baffle Ⅱ49 with a larger radius. The drainage baffles II 49 all extend into the guide chamber 29. An outer flow limiting channel 31 is formed between one side of one drainage baffle II 49 and the shell I7, and an inner flow limiting channel 32 is formed between the other side of the other drainage baffle II 49 and the shell I7. The outer flow limiting channel 31 and the inner flow limiting channel 32 are both connected to other parts of the guide chamber 29, and the outer flow limiting channel 31 is connected to the outside through the gap between the shell I7 and the star wheel disk I2. The input end shielding chamber I8, the input end flow limiting chamber 10, the sterilization chamber 11, the output end flow limiting chamber 12, the output end shielding chamber I13, and the terminal flow limiting chamber 14 are all connected to the inner flow limiting channel 32 through the gap between the shell I7 and the star wheel disk I2.

[0089] The suction assembly I includes an input suction unit I26 and an output suction unit I27. The input suction unit I26 is provided with at least two input suction parts I, one of which is connected to the upper part of the input shielding chamber I8, and the other is connected to the lower part of the input shielding chamber I8. The output suction unit I27 is provided with two output suction parts I, one of which is connected to the upper part of the output shielding chamber I13, and the other is connected to the lower part of the output shielding chamber I13.

[0090] The spray assembly I includes an upper spray unit I18 and a lower spray unit I. The spray range of the upper spray unit I18 is located in the sterilization chamber 11 and intersects with the upper part of the conveying area I5. The spray range of the lower spray unit I is located in the sterilization chamber 11 and intersects with the lower part of the conveying area I5.

[0091] Among them, the upper spray unit Ⅰ18 is located at the upper part of the sterilization chamber 11, and the upper spray unit Ⅰ18 includes a top nozzle Ⅰ19 and an upper side nozzle Ⅰ. The top nozzle Ⅰ19 is located at the top of the sterilization chamber 11, and the upper side nozzle Ⅰ is located on the side of the sterilization chamber 11. The spraying direction of the top nozzle Ⅰ19 and the spraying direction of the upper side nozzle Ⅰ are both toward the conveying area Ⅰ5.

[0092] The top nozzles Ⅰ19 are arranged at intervals in the same circumferential direction around the central axis of the star wheel disk Ⅰ2, and the upper side nozzles Ⅰ are arranged at intervals in the same circumferential direction around the central axis of the star wheel disk Ⅰ2. The spray direction of the top nozzles Ⅰ19 is vertically downward, and the spray direction of the upper side nozzles Ⅰ is horizontal. The spray ranges of the top nozzles Ⅰ19 and the spray ranges of the upper side nozzles Ⅰ are staggered in the same circumferential direction around the central axis of the star wheel disk Ⅰ2.

[0093] Specifically, the upper side nozzle I includes an upper outer nozzle I20 and an upper inner nozzle I21. The upper outer nozzle I20 and the upper inner nozzle I21 are respectively located on both sides of the sterilization chamber 11, and the distance between the upper inner nozzle I21 and the central axis of the star wheel disk I2 is less than the distance between the upper outer nozzle I20 and the central axis of the star wheel disk I2. The spraying direction of the upper outer nozzle I20 and the spraying direction of the upper inner nozzle I21 are both toward the conveying area I5. The top nozzles I19 are arranged at intervals in the same circumferential direction around the central axis of the star wheel disk I2. The upper outer nozzles I20 are arranged at intervals in the same circumferential direction around the central axis of the star wheel disk I2, and the upper inner nozzles I21 are arranged at intervals in the same circumferential direction around the central axis of the star wheel disk I2. The spraying direction of the top nozzle I19 is vertically downward, and the spraying directions of the upper outer nozzle I20 and the upper inner nozzle I21 are horizontal, and the spraying direction of the upper outer nozzle I20 is opposite to the spraying direction of the upper inner nozzle I21. The spray range of the top nozzle Ⅰ19, the spray range of the upper outer nozzle Ⅰ20, and the spray range of the upper inner nozzle Ⅰ21 are staggered in the same circumferential direction around the central axis of the star wheel disk Ⅰ2.

[0094] The lower end spray unit I is located at the lower part of the sterilization chamber 11. The lower end spray unit I includes a bottom nozzle I23 and a lower side nozzle I. The bottom nozzle I23 is located at the bottom of the sterilization chamber 11; the lower side nozzle I is located on the side of the sterilization chamber 11. The spray direction of the bottom nozzle I23 and the spray direction of the lower side nozzle I are both toward the conveying area I5. The bottom nozzle I23 is arranged at intervals in the same circumferential direction around the central axis of the star wheel disk I2, and the lower side nozzle I is arranged at intervals in the same circumferential direction around the central axis of the star wheel disk I2. The spray direction of the bottom nozzle I23 is vertically upward, and the spray direction of the lower side nozzle I is horizontal. The spray range of the bottom nozzle I23 and the spray range of the lower side nozzle I are staggered in the same circumferential direction around the central axis of the star wheel disk I2.

[0095] Specifically, the lower side nozzle I includes a lower outer nozzle I24 and a lower inner nozzle I25. The lower outer nozzle I24 and the lower inner nozzle I25 are respectively located on both sides of the sterilization chamber 11. The distance from the lower inner nozzle I25 to the central axis of the star wheel disk I2 is less than the distance from the lower outer nozzle I24 to the central axis of the star wheel disk I2, and the spraying direction of the lower outer nozzle I24 and the spraying direction of the lower inner nozzle I25 are both toward the conveying area I5. The bottom nozzles I23 are arranged at intervals in the same circumferential direction around the central axis of the star wheel disk I2. The lower outer nozzles I24 are arranged at intervals in the same circumferential direction around the central axis of the star wheel disk I2, and the lower inner nozzles I25 are arranged at intervals in the same circumferential direction around the central axis of the star wheel disk I2. The spraying direction of the lower outer nozzle I24 and the spraying direction of the lower inner nozzle I25 are horizontal directions, and the spraying direction of the lower outer nozzle I24 is opposite to the spraying direction of the lower inner nozzle I25. The spray range of the bottom nozzle I23, the spray range of the lower outer nozzle I24, and the spray range of the lower inner nozzle I25 are staggered in the same circumferential direction around the central axis of the star wheel disk I2.

[0096] The drying station is provided with a conveying component II 33 and a drying component 34. The structure of the conveying component II 33 is the same as that of the conveying component I1.

[0097] The conveying component II33 is provided with a star wheel disc II35 and a guard plate II36. The star wheel disc II35 is driven by the driving structure to rotate, and the rotation direction of the star wheel disc II35 is the same as that of the star wheel disc I2. The star wheel disc II35 is disc-shaped as a whole, and a conveying groove II is provided on its edge. The conveying groove II is continuously arranged on the edge of the star wheel disc II35 to form a ring-shaped distribution structure. The spatial position of the guard plate II36 is fixed, and it can be fixed on the frame structure of the conveying component II33. When the star wheel disc II35 rotates, the guard plate II36 is always located on one side of the star wheel disc II35. The star wheel disc II35 and the guard plate II36 are separated to form an arc-shaped conveying area II for the bottle blank to pass through; during conveying, the bottle blank's bottle mouth is embedded in the conveying groove II, and the bottle blank is supported by the star wheel disc II35 on one side and the guard plate II36 on the other side. The conveying area II is connected to the conveying area I5. When the preform leaves the conveying area I5 of the conveying component I1, it will immediately enter the conveying area II of the conveying component II33.

[0098] The drying component 34 is installed on the conveying component II 33 in a fixed spatial position. Like the guard plate II 36, it is fixed in spatial position and unchanged in spatial posture, and the two are relatively static. The guard plate II 36 is arc-shaped as a whole, and its center is located on the central axis of the rotation of the star wheel II 35. The side of the star wheel II 35 where the guard plate II 36 is distributed is embedded in the drying component 34 together with the guard plate II 36.

[0099] The drying component 34 includes a housing II 37, a spray assembly II, and an air suction assembly II. The housing II 37 is used to construct a highly enclosed space on the conveying area II, and the housing II 37 is connected to the housing I 7; the spray assembly II is used to spray sterile hot air into the aforementioned space; and the air suction assembly II is used to forcibly recover the sprayed sterile hot air.

[0100] The housing II 37 includes two parts, the upper and lower parts, which are fixedly mounted on the upper and lower sides of the guard plate II 36. The housing II 37 is wrapped around the outside of the conveying area II. The housing II 37 is provided with an input end shielding chamber II 38, a drying chamber 39, and an output end shielding chamber II 40 arranged one by one in the same circumferential direction around the central axis of the star wheel II 35.

[0101] Shell II 37 is provided with an input-end partition plate between input-end shielding chamber II 38 and drying chamber 39, and a through hole is provided on the input-end partition plate, and input-end shielding chamber II 38 is connected with drying chamber 39 through the through hole. Shell II 37 is provided with an output-end partition plate between drying chamber 39 and output-end shielding chamber II 40, and a through hole is provided on the output-end partition plate, and drying chamber 39 is connected with output-end shielding chamber II 40 through the through hole. Shell II 37 is provided with an input port II connected with input-end shielding chamber II 38, and an output port II connected with output-end shielding chamber II 40. Since shell II 37 is connected with shell I 7, input port II is connected with output port I 17, that is, conveying area II is connected with conveying area I 5. The conveying area II passes through the input end shielding chamber II 38, the drying chamber 39, and the output end shielding chamber II 40, and the conveying area II also passes through the input port II, the output port II, the through hole on the input end partition, and the through hole on the output end partition. Therefore, after the bottle blank enters the shell body II 37, it first enters the input end shielding chamber II 38, the drying chamber 39, and finally passes through the output end shielding chamber II 40 and leaves the shell body II 37.

[0102] The suction assembly II includes an input suction unit II 41 and an output suction unit II 42. The input suction unit II 41 is provided with two input suction parts II, one of which is connected to the upper part of the input shielding chamber II 38, and the other is connected to the lower part of the input shielding chamber II 38. The output suction unit II 42 is provided with two output suction parts II, one of which is connected to the upper part of the output shielding chamber II 40, and the other is connected to the lower part of the output shielding chamber II 40.

[0103] The spray assembly II includes an upper spray unit II and a lower spray unit II. The spray range of the upper spray unit II intersects with the upper part of the conveying area II, and the spray range of the lower spray unit II intersects with the lower part of the conveying area II.

[0104] The upper end spray unit II includes an upper outer nozzle II 43, an upper inner nozzle II 44, and a top nozzle II 45. The upper outer nozzle II 43 and the upper inner nozzle II 44 are respectively located on both sides of the drying chamber 39, and the distance from the upper inner nozzle II 44 to the central axis of the star wheel disk II 35 is smaller than the distance from the upper outer nozzle II 43 to the central axis of the star wheel disk II 35. The spray direction of the upper outer nozzle II 43 and the spray direction of the upper inner nozzle II 44 are both toward the conveying area II. The top nozzle II 45 is located at the top of the drying chamber 39, and the spray direction of the top nozzle II 45 is toward the conveying area II.

[0105] The top nozzles II 45 are arranged at intervals in the same circumferential direction around the central axis of the star wheel disk II 35, the upper outer nozzles II 43 are arranged at intervals in the same circumferential direction around the central axis of the star wheel disk II 35, and the upper inner nozzles II 44 are arranged at intervals in the same circumferential direction around the central axis of the star wheel disk II 35. The spraying direction of the upper outer nozzles II 43 and the spraying direction of the upper inner nozzles II 44 are horizontal directions, and the spraying direction of the upper outer nozzles II 43 is opposite to the spraying direction of the upper inner nozzles II 44. The spraying direction of the top nozzles II 45 is vertically downward. The spraying direction of the upper outer nozzles II 43 and the spraying direction of the upper inner nozzles II 44 are horizontal directions, and the spraying direction of the upper outer nozzles II 43 is opposite to the spraying direction of the upper inner nozzles II 44. The spraying range of the top nozzles II 45, the spraying range of the upper outer nozzles II 43, and the spraying range of the upper inner nozzles II 44 are staggered in the same circumferential direction around the central axis of the star wheel disk II 35.

[0106] The lower spray unit II is located at the lower part of the drying chamber 39. The lower spray unit II includes a bottom nozzle II 46 and a lower side nozzle II. The bottom nozzle II 46 is located at the bottom of the drying chamber 39, and the lower side nozzle II is located at the side of the drying chamber 39. The spray direction of the bottom nozzle II 46 and the spray direction of the lower side nozzle II are both toward the conveying area II.

[0107] The bottom nozzles II 46 are arranged at intervals in the same circumferential direction around the central axis of the star wheel disk II 35, and the lower side nozzles II are arranged at intervals in the same circumferential direction around the central axis of the star wheel disk II 35. The spray direction of the bottom nozzle II 46 is vertically upward, and the spray direction of the lower side nozzle II is horizontal. The spray range of the bottom nozzle II 46 and the spray range of the lower side nozzle II are staggered in the same circumferential direction around the central axis of the star wheel disk II 35.

[0108] Specifically, the lower side nozzle II includes a lower outer nozzle II 47 and a lower inner nozzle II 48. The lower outer nozzle II 47 and the lower inner nozzle II 48 are respectively located on both sides of the drying chamber 39. The distance from the lower inner nozzle II 48 to the central axis of the star wheel disk II 35 is smaller than the distance from the lower outer nozzle II 47 to the central axis of the star wheel disk II 35, and the spraying direction of the lower outer nozzle II 47 and the spraying direction of the lower inner nozzle II 48 are both toward the conveying area II. The lower outer nozzle II 47 is arranged at intervals in the same circumferential direction around the central axis of the star wheel disk II 35, and the lower inner nozzle II 48 is arranged at intervals in the same circumferential direction around the central axis of the star wheel disk II 35. The spraying direction of the lower outer nozzle II 47 and the spraying direction of the lower inner nozzle II 48 are horizontal directions, and the spraying direction of the lower outer nozzle II 47 is opposite to the spraying direction of the lower inner nozzle II 48. The spray range of the lower outer nozzle II 47 and the spray range of the lower inner nozzle II 48 are arranged in a staggered manner in the same circumferential direction around the central axis of the star wheel disk II 35 .

[0109] During operation, the star wheel disc Ⅰ2 and the star wheel disc Ⅱ35 rotate in the same direction. The input end suction unit Ⅰ26, the output end suction unit Ⅰ27, the input end suction unit Ⅱ41, and the output end suction unit Ⅱ42 begin to pump air outward, so that the input end shielding chamber Ⅰ8, the output end shielding chamber Ⅰ13, the input end shielding chamber Ⅱ38, and the output end shielding chamber Ⅱ40 are in a negative pressure state, and the air pressure of the negative pressure state is lower than the air pressure of the environment in which the bottle blank sterilization device is located. The upper end spray unit Ⅰ18, the lower end spray unit Ⅰ, the upper end spray unit Ⅱ, and the lower end spray unit Ⅱ are all in the spraying state, so that the sterilant continuously enters the sterilization chamber 11 and the sterile hot air continuously enters the drying chamber 39. The air pressure in the input end shielding chamber Ⅰ8 and the air pressure in the output end shielding chamber Ⅰ13 are both lower than the air pressure in the sterilization chamber 11, and the sterilizing agent enters the input end shielding chamber Ⅰ8 and the output end shielding chamber Ⅰ13 respectively through the input end current limiting chamber 10 and the output end current limiting chamber 12. The inside of the side shielding chamber 15 is connected to the input end shielding chamber Ⅰ8 and the output end shielding chamber Ⅰ13, so the side shielding chamber 15 is in a negative pressure state. The sterilizing agent overflowing from the sterilization chamber 11 to the side shielding chamber 15 is mixed with the air drawn into the side shielding chamber 15 from the outside, and then enters the input end shielding chamber Ⅰ8 and the output end shielding chamber Ⅰ13, and is finally drawn away. The air pressure in the input shielding chamber II 38 and the output shielding chamber II 40 are both lower than the air pressure in the drying chamber 39. The sterile hot air will flow into the input shielding chamber II 38 and the output shielding chamber II 40 and be finally drawn away. After the preform is inserted into the conveying groove I of the star wheel disc I2, it will move with the star wheel disc I2. The preform enters the conveying area I5 and does not rotate. Similarly, the preform does not rotate in the conveying area II. The preform is first sterilized by the sterilizing agent in the sterilization chamber 11, and then the preform is conveyed to the drying chamber 39 to remove the residual sterilizing agent, and finally a preform with a sterile surface is obtained.

[0110] The second embodiment of the present invention. The difference between this embodiment and the first embodiment is that the sterilization component is provided with a brake. The brake is fixedly arranged on the guard plate I and extends into the sterilization chamber, and is used to contact the bottle mouth of the bottle preform in the sterilization chamber after the bottle preform is in the conveying area I, that is, the part with threads. The brake is made of plastic, and the bottle preform will produce self-rotation when it contacts the brake. In this way, the various surfaces of the bottle preform can alternately contact the sterilizer on different flow paths, so as to achieve the effect of full contact sterilization.

[0111] The third embodiment of the present invention is different from the second embodiment in that the upper side nozzle I only includes the upper inner nozzle I.

[0112] The fourth embodiment of the present invention is different from the second embodiment in that the upper side nozzle I only includes the upper outer nozzle I.

[0113] The fifth embodiment of the present invention is different from the first embodiment in that the top nozzle II is eliminated.

[0114] The sixth embodiment of the present invention is different from the second embodiment in that the top nozzle II is eliminated.

[0115] The seventh embodiment of the present invention is different from the third embodiment in that the top nozzle II is eliminated.

[0116] The eighth embodiment of the present invention is different from the fourth embodiment in that the top nozzle II is eliminated.

[0117] A ninth embodiment of the present invention.

[0118] The working environment of the preform sterilization device is inside the blowing, filling and capping integrated equipment, so the way of conveying materials should also adopt the method of rotary handover. The preform sterilization device includes conveying component I, sterilizing component, conveying component II, and drying component, among which conveying component I and sterilizing component correspond to the sterilization station of the preform sterilization device, and conveying component II and drying component correspond to the drying station of the preform sterilization device. The preform is first sterilized in the sterilization station, and then removed from the sterilant remaining on the surface of the preform in the drying station. Finally, the preform is sent to the rotary bottle blowing device of the blowing and capping integrated equipment in a sterile state.

[0119] The conveying component I is provided with a star wheel disc I and a guard plate I. The star wheel disc I is driven by the driving structure to rotate. The star wheel disc I is in the shape of a disk as a whole, and a conveying groove I is provided on its edge. The conveying groove I is continuously arranged on the edge of the star wheel disc I to form a ring-shaped distribution structure. The spatial position of the guard plate I is fixed. It can be fixed on the frame structure of the conveying component I. When the star wheel disc I rotates, the guard plate I is always located on one side of the star wheel disc I. The star wheel disc I and the guard plate I are separated to form an arc-shaped conveying area I for the preform to pass through; during conveying, the mouth of the preform is embedded in the conveying groove I, and one side of the preform is supported by the star wheel disc I and the other side is supported by the guard plate I.

[0120] The sterilization component is installed on the conveying component I in a fixed spatial position. Like the guard plate I, it has a fixed spatial position and unchanged spatial posture, and the two are relatively static. The guard plate I is an arc-shaped whole, and its center is located on the central axis of the rotation of the star wheel disc I. The side of the star wheel disc I where the guard plate I is distributed is embedded in the sterilization component together with the guard plate I.

[0121] The sterilization components include a housing I, an injection assembly I, an air suction assembly I, and an air barrier supply assembly. The housing I is used to construct a highly enclosed space on the conveying area I; the injection assembly I is used to spray the sterilant into the aforementioned space; the air suction assembly I is used to forcibly recover the sterilant; and the air barrier supply assembly blocks the overflow path of the sterilant by spraying high-pressure sterile air.

[0122] Shell I includes two parts, upper and lower, which are fixedly mounted on the upper and lower sides of guard plate I respectively. Shell I is wrapped around the outside of conveying area I. Inside shell I, there are input end shielding chamber I, input end current limiting chamber, sterilization chamber, output end current limiting chamber, output end shielding chamber I, terminal current limiting chamber arranged one by one in the same circumferential direction around the central axis of star wheel disc I, and side shielding chamber located on the same side of input end shielding chamber I, input end current limiting chamber, sterilization chamber, output end current limiting chamber, output end shielding chamber I, and terminal current limiting chamber. After the preform enters shell I, it first enters input end shielding chamber I, then enters input end current limiting chamber, then enters sterilization chamber, then enters output end shielding chamber I after passing through output end current limiting chamber, and finally leaves shell I through terminal current limiting chamber.

[0123] The width of the input-end current limiting chamber, the width of the output-end current limiting chamber, and the width of the terminal current limiting chamber are all greater than the width of the conveying area I, and the width of the input-end current limiting chamber, the width of the output-end current limiting chamber, and the width of the terminal current limiting chamber are all smaller than the width of the input-end shielding chamber I, the width of the sterilization chamber, and the width of the output-end shielding chamber I. The length of the input-end current limiting chamber and the length of the output-end current limiting chamber are both greater than the spacing between adjacent conveying grooves I on the star wheel disc I. The housing I is provided with an input port I connected to the input-end shielding chamber I, and an output port I connected to the terminal current limiting chamber. The conveying area I passes through the input-end shielding chamber I, the input-end current limiting chamber, the sterilization chamber, the output-end current limiting chamber, the output-end shielding chamber I, and the terminal current limiting chamber, and the conveying area I also passes through the input port I and the output port I.

[0124] The side shielding chamber is closer to the central axis of the star wheel disc I than other chambers. The side shielding chamber is distributed on one side of the input end shielding chamber I, the input end current limiting chamber, the sterilization chamber, the output end current limiting chamber, and the output end shielding chamber I, so its structure is a narrow and long structure. The output end of the air barrier air supply assembly is connected to the shell I and the output end of the air barrier air supply assembly is connected to the side shielding chamber. Since the shell I and the star wheel disc I are not directly connected, the star wheel disc I will be in a rotating state relative to the shell I, so there is a gap between the two. The aforementioned input end shielding chamber I, the input end current limiting chamber, the sterilization chamber, the output end current limiting chamber, the output end shielding chamber I, and the end current limiting chamber are all connected to the side shielding chamber through the gap between the shell I and the star wheel disc I.

[0125] A drainage baffle I is provided on the shell I. The drainage baffle I is located inside the side shielding chamber, and the drainage baffle I is perpendicular to the central axis of the star wheel disc I. A through hole is provided on the drainage baffle I. The drainage baffle I separates the side shielding chamber into a guide chamber and a transition chamber. The guide chamber is connected to the transition chamber through the through hole on the drainage baffle I. The output end of the air barrier air supply assembly is connected to the transition chamber. Two drainage baffles II are provided on the star wheel disc I. The drainage baffles II are annular in structure as a whole, and the centers of the two drainage baffles II are at the same position, so the drainage baffle II with a smaller radius is located inside the drainage baffle II with a larger radius. The drainage baffles II all extend into the guide chamber. An outer flow limiting channel is formed between one side of one drainage baffle II and the shell I, and an inner flow limiting channel is formed between the other side of the other drainage baffle II and the shell I. The outer flow limiting channel and the inner flow limiting channel are both connected to other parts of the guide chamber, and the outer flow limiting channel is connected to the outside through the gap between the shell Ⅰ and the star wheel disc Ⅰ. The input end shielding chamber Ⅰ, the input end flow limiting chamber, the sterilization chamber, the output end flow limiting chamber, the output end shielding chamber Ⅰ, and the terminal flow limiting chamber are all connected to the inner flow limiting channel through the gap between the shell Ⅰ and the star wheel disc Ⅰ.

[0126] The suction assembly I includes an input suction unit I and an output suction unit I. The input suction unit I is provided with at least two input suction parts I, one of which is connected to the upper part of the input shielding chamber I, and the other is connected to the lower part of the input shielding chamber I. The output suction unit I is provided with two output suction parts I, one of which is connected to the upper part of the output shielding chamber I, and the other is connected to the lower part of the output shielding chamber I.

[0127] The spray assembly I includes an upper spray unit I and a lower spray unit I. The spray range of the upper spray unit I is located in the sterilization chamber and intersects with the upper part of the conveying area I, and the spray range of the lower spray unit I is located in the sterilization chamber and intersects with the lower part of the conveying area I.

[0128] Among them, the upper spray unit I is located at the upper part of the sterilization chamber, and the upper spray unit I includes a top nozzle I and an upper side nozzle I. The top nozzle I is located at the top of the sterilization chamber, and the upper side nozzle I is located on the side of the sterilization chamber. The spray directions of the top nozzle I and the upper side nozzle I are both toward the conveying area I.

[0129] The top nozzles I are arranged at intervals in the same circumferential direction around the central axis of the star wheel disk I, and the upper side nozzles I are arranged at intervals in the same circumferential direction around the central axis of the star wheel disk I. The spray direction of the top nozzles I is vertically downward, and the spray direction of the upper side nozzles I is horizontal. The spray ranges of the top nozzles I and the spray ranges of the upper side nozzles I are staggered in the same circumferential direction around the central axis of the star wheel disk I.

[0130] Specifically, the upper side nozzle I includes an upper outer nozzle I and an upper inner nozzle I. The upper outer nozzle I and the upper inner nozzle I are respectively located on both sides of the sterilization chamber, the distance from the upper inner nozzle I to the central axis of the star wheel disk I is less than the distance from the upper outer nozzle I to the central axis of the star wheel disk I, and the spraying direction of the upper outer nozzle I and the spraying direction of the upper inner nozzle I are both toward the conveying area I. The top nozzle I is arranged at intervals in the same circumferential direction around the central axis of the star wheel disk I. The upper outer nozzle I is arranged at intervals in the same circumferential direction around the central axis of the star wheel disk I, and the upper inner nozzle I is arranged at intervals in the same circumferential direction around the central axis of the star wheel disk I. The spraying direction of the top nozzle I is vertically downward, the spraying direction of the upper outer nozzle I and the spraying direction of the upper inner nozzle I are horizontal, and the spraying direction of the upper outer nozzle I is opposite to the spraying direction of the upper inner nozzle I. The spray range of the top nozzle I, the spray range of the upper outer nozzle I, and the spray range of the upper inner nozzle I are staggered in the same circumferential direction around the central axis of the star wheel disk I.

[0131] The lower end spray unit I is located at the lower part of the sterilization chamber. The lower end spray unit I includes a bottom nozzle I and a lower side nozzle I. The bottom nozzle I is located at the bottom of the sterilization chamber; the lower side nozzle I is located at the side of the sterilization chamber. The spray direction of the bottom nozzle I and the spray direction of the lower side nozzle I are both toward the conveying area I. The bottom nozzle I is arranged at intervals in the same circumferential direction around the central axis of the star wheel disk I, and the lower side nozzle I is arranged at intervals in the same circumferential direction around the central axis of the star wheel disk I. The spray direction of the bottom nozzle I is vertically upward, and the spray direction of the lower side nozzle I is horizontal. The spray range of the bottom nozzle I and the spray range of the lower side nozzle I are staggered in the same circumferential direction around the central axis of the star wheel disk I.

[0132] Specifically, the lower side nozzle I includes a lower outer nozzle I and a lower inner nozzle I. The lower outer nozzle I and the lower inner nozzle I are respectively located on both sides of the sterilization chamber. The distance from the lower inner nozzle I to the central axis of the star wheel disk I is less than the distance from the lower outer nozzle I to the central axis of the star wheel disk I, and the spraying direction of the lower outer nozzle I and the spraying direction of the lower inner nozzle I are both toward the conveying area I. The bottom nozzle I is arranged at intervals in the same circumferential direction around the central axis of the star wheel disk I. The lower outer nozzle I is arranged at intervals in the same circumferential direction around the central axis of the star wheel disk I, and the lower inner nozzle I is arranged at intervals in the same circumferential direction around the central axis of the star wheel disk I. The spraying direction of the lower outer nozzle I and the spraying direction of the lower inner nozzle I are horizontal directions, and the spraying direction of the lower outer nozzle I is opposite to the spraying direction of the lower inner nozzle I. The spraying range of the bottom nozzle I, the spraying range of the lower outer nozzle I, and the spraying range of the lower inner nozzle I are staggered in the same circumferential direction around the central axis of the star wheel disk I.

[0133] The conveying part II and the drying part are arranged at the drying station. The structure of the conveying part II is the same as that of the conveying part I.

[0134] The conveying component II is provided with a star wheel disc II and a guard plate II. The star wheel disc II is driven by the driving structure to rotate, and the rotation direction of the star wheel disc II is the same as that of the star wheel disc I. The star wheel disc II is disc-shaped as a whole, and a conveying groove II is arranged on its edge. The conveying groove II is continuously arranged on the edge of the star wheel disc II to form a ring-shaped distribution structure. The spatial position of the guard plate II is fixed, and it can be fixed on the frame structure of the conveying component II. When the star wheel disc II rotates, the guard plate II is always located on one side of the star wheel disc II. The star wheel disc II and the guard plate II are separated to form an arc-shaped conveying area II for the bottle blank to pass through; during conveying, the bottle blank's bottle mouth is embedded in the conveying groove II, and the bottle blank is supported by the star wheel disc II on one side and the guard plate II on the other side. The conveying area II is docked with the conveying area I, and when the bottle blank leaves the conveying area I of the conveying component I, it will immediately enter the conveying area II of the conveying component II.

[0135] The drying component is installed on the conveying component II in a fixed spatial position. Like the guard plate II, it has a fixed spatial position and unchanged spatial posture, and the two are relatively static. The guard plate II is an arc-shaped whole, and its center is located on the central axis of the rotation of the star wheel II. The side of the star wheel II with the guard plate II is embedded in the drying component together with the guard plate II.

[0136] The drying component includes a shell II, an injection assembly II, and an air suction assembly II. Shell II is used to construct a highly enclosed space on the conveying area II, and shell II is connected to shell I; injection assembly II is used to inject sterile hot air into the aforementioned space; and air suction assembly II is used to forcibly recover the injected sterile hot air.

[0137] Shell II includes two parts, upper and lower, which are fixedly mounted on the upper and lower sides of guard plate II. Shell II is wrapped around the outside of conveying area II. Inside shell II, input end shielding chamber II, drying chamber, and output end shielding chamber II are arranged one by one in the same circumferential direction around the central axis of star wheel II.

[0138] Shell II is provided with an input end partition between input end shielding chamber II and drying chamber, and a through hole is provided on the input end partition, and input end shielding chamber II is connected with drying chamber through the through hole. Shell II is provided with an output end partition between drying chamber and output end shielding chamber II, and a through hole is provided on the output end partition, and drying chamber is connected with output end shielding chamber II through the through hole. Shell II is provided with an input port II connected with input end shielding chamber II, and an output port II connected with output end shielding chamber II. Since shell II is connected with shell I, input port II is connected with output port I, that is, conveying area II is connected with conveying area I. Conveying area II passes through input end shielding chamber II, drying chamber, and output end shielding chamber II, and conveying area II also passes through input port II, output port II, the through hole on input end partition, and the through hole on output end partition, so after the preform enters shell II, it first enters input end shielding chamber II, drying chamber, and finally passes through output end shielding chamber II and leaves shell II.

[0139] The suction assembly II includes an input suction unit II and an output suction unit II. The input suction unit II is provided with two input suction parts II, one of which is connected to the upper part of the input shielding chamber II, and the other is connected to the lower part of the input shielding chamber II. The output suction unit II is provided with two output suction parts II, one of which is connected to the upper part of the output shielding chamber II, and the other is connected to the lower part of the output shielding chamber II.

[0140] The spray assembly II includes an upper spray unit II and a lower spray unit II. The spray range of the upper spray unit II intersects with the upper part of the conveying area II, and the spray range of the lower spray unit II intersects with the lower part of the conveying area II.

[0141] The upper end spray unit II includes an upper outer nozzle II, an upper inner nozzle II, and a top nozzle II. The upper outer nozzle II and the upper inner nozzle II are respectively located on both sides of the drying chamber, and the distance from the upper inner nozzle II to the central axis of the star wheel disk II is smaller than the distance from the upper outer nozzle II to the central axis of the star wheel disk II. The spray direction of the upper outer nozzle II and the spray direction of the upper inner nozzle II are both toward the conveying area II. The top nozzle II is located at the top of the drying chamber, and the spray direction of the top nozzle II is toward the conveying area II.

[0142] The top nozzles II are arranged at intervals in the same circumferential direction around the central axis of the star wheel disk II, the upper outer nozzles II are arranged at intervals in the same circumferential direction around the central axis of the star wheel disk II, and the upper inner nozzles II are arranged at intervals in the same circumferential direction around the central axis of the star wheel disk II. The spraying direction of the upper outer nozzle II and the spraying direction of the upper inner nozzle II are horizontal directions, and the spraying direction of the upper outer nozzle II is opposite to the spraying direction of the upper inner nozzle II. The spraying direction of the top nozzle II is vertically downward. The spraying direction of the upper outer nozzle II and the spraying direction of the upper inner nozzle II are horizontal directions, and the spraying direction of the upper outer nozzle II is opposite to the spraying direction of the upper inner nozzle II. The spraying range of the top nozzle II, the spraying range of the upper outer nozzle II, and the spraying range of the upper inner nozzle II are staggered in the same circumferential direction around the central axis of the star wheel disk II.

[0143] The lower end spray unit II is located at the lower part of the drying chamber. The lower end spray unit II includes a bottom nozzle II and a lower side nozzle II. The bottom nozzle II is located at the bottom of the drying chamber, and the lower side nozzle II is located at the side of the drying chamber. The spray direction of the bottom nozzle II and the spray direction of the lower side nozzle II are both toward the conveying area II.

[0144] The bottom nozzles II are arranged at intervals in the same circumferential direction around the central axis of the star wheel disk II, and the lower side nozzles II are arranged at intervals in the same circumferential direction around the central axis of the star wheel disk II. The spray direction of the bottom nozzle II is vertically upward, and the spray direction of the lower side nozzle II is horizontal. The spray range of the bottom nozzle II and the spray range of the lower side nozzle II are staggered in the same circumferential direction around the central axis of the star wheel disk II.

[0145] Specifically, the lower side nozzle II includes a lower outer nozzle II and a lower inner nozzle II. The lower outer nozzle II and the lower inner nozzle II are respectively located on both sides of the drying chamber. The distance from the lower inner nozzle II to the central axis of the star wheel disk II is smaller than the distance from the lower outer nozzle II to the central axis of the star wheel disk II, and the spraying direction of the lower outer nozzle II and the spraying direction of the lower inner nozzle II are both toward the conveying area II. The lower outer nozzle II is arranged at intervals in the same circumferential direction around the central axis of the star wheel disk II, and the lower inner nozzle II is arranged at intervals in the same circumferential direction around the central axis of the star wheel disk II. The spraying direction of the lower outer nozzle II and the spraying direction of the lower inner nozzle II are horizontal directions, and the spraying direction of the lower outer nozzle II is opposite to the spraying direction of the lower inner nozzle II. The spraying range of the lower outer nozzle II and the spraying range of the lower inner nozzle II are staggered in the same circumferential direction around the central axis of the star wheel disk II.

[0146] When working, star wheel disc Ⅰ and star wheel disc Ⅱ rotate in the same direction. Input end suction unit Ⅰ, output end suction unit Ⅰ, input end suction unit Ⅱ, output end suction unit Ⅱ start to pump air outward, so that input end shielding chamber Ⅰ, output end shielding chamber Ⅰ, input end shielding chamber Ⅱ, output end shielding chamber Ⅱ are in a negative pressure state, and the air pressure of the negative pressure state is lower than the air pressure of the environment where the bottle blank sterilization device is located. The air barrier air supply assembly begins to output sterile air to the outside. The sterile air first diffuses in the transition chamber and then enters the guide chamber in an isobaric manner. The air pressure in the guide chamber is greater than the air pressure of the input end shielding chamber I, the input end current limiting chamber, the sterilization chamber, the output end current limiting chamber, the output end shielding chamber I, and the terminal current limiting chamber. After that, the sterile air overflows to the environment where the bottle blank sterilization device is located through the outer current limiting channel, and the sterile air overflows to the input end shielding chamber I, the input end current limiting chamber, the sterilization chamber, the output end current limiting chamber, the output end shielding chamber I, and the terminal current limiting chamber through the inner current limiting channel. In this way, the input end shielding chamber I, the input end current limiting chamber, the sterilization chamber, the output end current limiting chamber, the output end shielding chamber I, and the terminal current limiting chamber can be prevented from being connected to the outside world from the location of the side shielding chamber.

[0147] The upper spray unit I, the lower spray unit I, the upper spray unit II, and the lower spray unit II are all in the spraying state, so that the sterilizer continuously enters the sterilization chamber and the sterile hot air continuously enters the drying chamber. The air pressure in the input shielding chamber I and the output shielding chamber I are both lower than the air pressure in the sterilization chamber, and the sterilizer passes through the input limiting current chamber and the output limiting current chamber to enter the input shielding chamber I and the output shielding chamber I respectively. The air pressure in the input shielding chamber II and the output shielding chamber II are both lower than the air pressure in the drying chamber, and the sterile hot air will flow into the input shielding chamber II and the output shielding chamber II, and finally be drawn away. After the preform is stuck in the conveying groove I of the star wheel disc I, it will move with the star wheel disc I, and the preform enters the conveying area I and the preform does not rotate; similarly, the preform does not rotate in the conveying area II. The preforms are first sterilized by the sterilizer in the sterilization chamber, and then the preforms are transported to the drying chamber to remove the residual sterilizer, and finally the preforms with sterile surfaces are obtained.

[0148] The tenth embodiment of the present invention. The difference between this embodiment and the ninth embodiment is that the sterilization component is provided with a brake. The brake is fixedly arranged on the guard plate I, and is used to contact the bottle mouth of the bottle preform in the sterilization chamber after the bottle preform is in the conveying area I, that is, the part with threads. The brake is made of plastic, and the bottle preform will produce self-rotation when it contacts the brake. In this way, the various surfaces of the bottle preform can alternately contact the sterilizer on different flow paths, so as to achieve the effect of full contact sterilization.

[0149] The eleventh embodiment of the present invention is different from the tenth embodiment in that the upper side nozzle I only includes the upper inner nozzle I.

[0150] The twelfth embodiment of the present invention is different from the tenth embodiment in that the upper side nozzle I only includes the upper outer nozzle I.

[0151] The thirteenth embodiment of the present invention is different from the ninth embodiment in that the top nozzle II is eliminated.

[0152] The fourteenth embodiment of the present invention is different from the tenth embodiment in that the top nozzle II is eliminated.

[0153] The fifteenth embodiment of the present invention is different from the eleventh embodiment in that the top nozzle II is eliminated.

[0154] The sixteenth embodiment of the present invention is different from the twelfth embodiment in that the top nozzle II is eliminated.

Claims

1. A preform sterilizing device, comprising a conveying component I and a sterilizing component, wherein the conveying component I comprises a star wheel disc I and a guard plate I, wherein the star wheel disc I is provided with a conveying groove I distributed in an annular shape, wherein the guard plate I is distributed on one side of the star wheel disc I and the star wheel disc I and the guard plate I are spaced apart to form an arc-shaped conveying area I, wherein the sterilizing component is stationary relative to the guard plate I, and wherein the sterilizing component is characterized in that The sterilization component is provided with a shell I, an injection assembly I, and an air suction assembly I. The shell I is provided with an input end shielding chamber I, an input end current limiting chamber, a sterilization chamber, an output end current limiting chamber, and an output end shielding chamber I arranged one by one in the same circumferential direction around the central axis of the star wheel disk I, and a side shielding chamber located on the same side of the input end shielding chamber I, the input end current limiting chamber, the sterilization chamber, the output end current limiting chamber, and the output end shielding chamber I. The width of the input end current limiting chamber and the width of the output end current limiting chamber are both greater than the width of the conveying area I, and the width of the input end current limiting chamber and the width of the output end current limiting chamber are both less than The width of the input end shielding chamber I, the width of the sterilization chamber, and the width of the output end shielding chamber I, the length of the input end current limiting chamber and the length of the output end current limiting chamber are both greater than the spacing between adjacent conveying grooves I, the shell I is provided with an input port I connected to the input end shielding chamber I, and an output port I connected to the output end shielding chamber I, the side of the star wheel I with the guard plate I is embedded in the sterilization component together with the guard plate I, the conveying area I passes through the input end shielding chamber I, the input end current limiting chamber, the sterilization chamber, the output end current limiting chamber, and the output end shielding chamber I, and the conveying area I also passes through the input port I and the output port I, The spray assembly I comprises an upper spray unit I and a lower spray unit I, the spray range of the upper spray unit I is located in the sterilization chamber and intersects with the upper part of the conveying area I, the spray range of the lower spray unit I is located in the sterilization chamber and intersects with the lower part of the conveying area I, the suction assembly I comprises an input end suction unit I and an output end suction unit I, the input end suction unit I is provided with at least two input end suction parts I, one of which is communicated with the upper part of the input end shielding chamber I, and the other is communicated with the lower part of the input end shielding chamber I, the output end suction unit I Two output end air suction parts I are provided, one of which is connected to the upper part of the output end shielding chamber I, and the other is connected to the lower part of the output end shielding chamber I. Two gas delivery ports are provided inside the shell I. One end of the side shielding chamber is connected to the input end shielding chamber I through one of the gas delivery ports, and the other end of the side shielding chamber is connected to the output end shielding chamber I through the other gas delivery port. The input end shielding chamber I, the input end current limiting chamber, the sterilization chamber, the output end current limiting chamber, and the output end shielding chamber I are all connected to the side shielding chamber through the gap between the shell I and the star wheel disk I.

2. The preform sterilizing device according to claim 1, characterized in that: The upper spray unit I is located at the upper part of the sterilization chamber, and the upper spray unit I includes a top nozzle I and an upper side nozzle I. The top nozzle I is located at the top of the sterilization chamber, and the upper side nozzle I is located at the side of the sterilization chamber. The spray directions of the top nozzle I and the upper side nozzle I are both toward the conveying area I.

3. The preform sterilizing device according to claim 2, characterized in that: The sterilization component is provided with a brake, which is distributed in the housing I and extends into the upper part of the conveying area I. The brake is located on one side of the conveying area I, and at least one upper side nozzle I is located on the other side of the conveying area I.

4. The preform sterilizing device according to claim 2 or 3, characterized in that: The top nozzles I are arranged at intervals in the same circumferential direction around the central axis of the star wheel disk I, and the upper side nozzles I are arranged at intervals in the same circumferential direction around the central axis of the star wheel disk I. The spraying direction of the top nozzles I is vertically downward, and the spraying direction of the upper side nozzles I is horizontal.

5. The preform sterilizing device according to claim 2 or 3, characterized in that: The spray range of the top nozzle I and the spray range of the upper side nozzle I are staggered in the same circumferential direction around the central axis of the star wheel disk I.

6. The preform sterilizing device according to claim 2 or 3, characterized in that: The upper side nozzle I includes an upper outer nozzle I and an upper inner nozzle I. The upper outer nozzle I and the upper inner nozzle I are respectively located on both sides of the sterilization chamber. The distance from the upper inner nozzle I to the central axis of the star wheel disk I is smaller than the distance from the upper outer nozzle I to the central axis of the star wheel disk I. The spraying directions of the upper outer nozzle I and the upper inner nozzle I are both toward the conveying area I.

7. The preform sterilizing device according to claim 6, characterized in that: The top nozzles I are arranged at intervals in the same circumferential direction around the center axis of the star wheel disk I, the upper outer nozzles I are arranged at intervals in the same circumferential direction around the center axis of the star wheel disk I, and the upper inner nozzles I are arranged at intervals in the same circumferential direction around the center axis of the star wheel disk I. The spraying direction of the top nozzle I is vertically downward, the spraying direction of the upper outer nozzle I and the spraying direction of the upper inner nozzle I are horizontal directions, and the spraying direction of the upper outer nozzle I is opposite to the spraying direction of the upper inner nozzle I.

8. The preform sterilizing device according to claim 6, characterized in that: The spray range of the top nozzle I, the spray range of the upper outer nozzle I, and the spray range of the upper inner nozzle I are staggered in the same circumferential direction around the central axis of the star wheel disk I.

9. The preform sterilizing device according to claim 1, characterized in that: The lower end spray unit I is located at the lower part of the sterilization chamber, and the lower end spray unit I includes a bottom nozzle I and a lower side nozzle I. The bottom nozzle I is located at the bottom of the sterilization chamber, and the lower side nozzle I is located on the side of the sterilization chamber. The spraying directions of the bottom nozzle I and the lower side nozzle I are both toward the conveying area I.

10. The preform sterilizing device according to claim 9, characterized in that: The bottom nozzles I are arranged at intervals in the same circumferential direction around the central axis of the star wheel disk I, and the lower side nozzles I are arranged at intervals in the same circumferential direction around the central axis of the star wheel disk I. The spraying direction of the bottom nozzles I is vertically upward, and the spraying direction of the lower side nozzles I is horizontal.

11. The preform sterilizing device according to claim 10, characterized in that: The spray range of the bottom nozzle I and the spray range of the lower side nozzle I are staggered in the same circumferential direction around the central axis of the star wheel disk I.

12. The preform sterilizing device according to claim 11, characterized in that: The lower side nozzle I includes a lower outer nozzle I and a lower inner nozzle I. The lower outer nozzle I and the lower inner nozzle I are respectively located on both sides of the sterilization chamber. The distance from the lower inner nozzle I to the central axis of the star wheel disk I is smaller than the distance from the lower outer nozzle I to the central axis of the star wheel disk I. The spraying directions of the lower outer nozzle I and the lower inner nozzle I are both toward the conveying area I.

13. The preform sterilizing device according to claim 12, characterized in that: The bottom nozzles I are arranged at intervals in the same circumferential direction around the central axis of the star wheel disk I, the lower outer nozzles I are arranged at intervals in the same circumferential direction around the central axis of the star wheel disk I, and the lower inner nozzles I are arranged at intervals in the same circumferential direction around the central axis of the star wheel disk I. The spraying direction of the lower outer nozzle I and the spraying direction of the lower inner nozzle I are horizontal directions, and the spraying direction of the lower outer nozzle I is opposite to the spraying direction of the lower inner nozzle I.

14. The preform sterilizing device according to claim 13, characterized in that: The spray range of the bottom nozzle I, the spray range of the lower outer nozzle I, and the spray range of the lower inner nozzle I are staggered in the same circumferential direction around the central axis of the star wheel disk I.

15. The preform sterilizing device according to claim 1, characterized in that: A terminal current limiting chamber is provided inside the shell I, and the output end shielding chamber I and the terminal current limiting chamber are arranged one by one in the same circumferential direction around the central axis of the star wheel disk I, one end of the terminal current limiting chamber is connected with the output end shielding chamber I, and the other end of the terminal current limiting chamber is connected with the output port I, the width of the terminal current limiting chamber is greater than the width of the conveying area I, and the width of the terminal current limiting chamber is less than the width of the output end shielding chamber I.

16. The preform sterilizing device according to claim 1, characterized in that: The housing I is provided with a drainage baffle I, which is located inside the side shielding chamber, is perpendicular to the central axis of the star wheel disc I, and is provided with a through hole. The drainage baffle I separates the side shielding chamber into a guide chamber and a transition chamber. The guide chamber is connected with the transition chamber through the through hole on the drainage baffle I. One end of the transition chamber is connected with the input end shielding chamber I through one of the gas transmission ports, and the other end of the transition chamber is connected with the output end shielding chamber I through another gas transmission port. A drainage baffle II is provided on the star wheel disk I, and the drainage baffle II extends into the guide chamber. An outer flow limiting channel is formed between one side of the drainage baffle II and the shell I, and an inner flow limiting channel is formed between the other side of the drainage baffle II and the shell I. The outer flow limiting channel and the inner flow limiting channel are both connected with other parts of the guide chamber. The outer flow limiting channel is connected with the outside through the gap between the shell I and the star wheel disk I. The input end shielding chamber I, the input end flow limiting chamber, the sterilization chamber, the output end flow limiting chamber, and the output end shielding chamber I are all connected with the inner flow limiting channel through the gap between the shell I and the star wheel disk I.

17. The preform sterilizing device according to claim 1, characterized in that: The preform sterilizing device also includes a conveying component II and a drying component. The conveying component II includes a star wheel disk II and a guard plate II. The guard plate II is distributed on one side of the star wheel disk II and the star wheel disk II and the guard plate II are separated to form an arc-shaped conveying area II. The drying component is stationary relative to the guard plate II. The conveying area II is connected and connected with the conveying area I. The drying component is provided with a shell II, an injection component II, and an air suction component II. The shell II is provided with an input end shielding chamber II, a drying chamber, an input end shielding chamber II, and a drying chamber arranged one by one in the same circumferential direction around the central axis of the star wheel disk II. The output end shielding chamber II, the shell II is provided with an input end partition between the input end shielding chamber II and the drying chamber, the input end partition is provided with a through hole, the input end shielding chamber II is connected with the drying chamber through the through hole, the shell II is provided with an output end partition between the drying chamber and the output end shielding chamber II, the output end partition is provided with a through hole, the drying chamber is connected with the output end shielding chamber II through the through hole, the shell II is provided with an input port II connected with the input end shielding chamber II, and an output port II connected with the output end shielding chamber II, the shell II is connected with the shell I The input port II is connected to the output port I, the side of the star wheel II on which the guard plate II is distributed is embedded in the drying component together with the guard plate II, the conveying area II passes through the input end shielding chamber II, the drying chamber, and the output end shielding chamber II, and the conveying area II also passes through the input port II, the output port II, the through hole on the input end partition, and the through hole on the output end partition, the injection assembly II includes an upper injection unit II and a lower injection unit II, the injection range of the upper injection unit II intersects with the upper part of the conveying area II, and the injection range of the lower injection unit II intersects with the conveying area II The lower part of the suction component II comprises an input-end suction unit II and an output-end suction unit II, the input-end suction unit II is provided with two input-end suction parts II, one of which is connected to the upper part of the input-end shielding chamber II, and the other is connected to the lower part of the input-end shielding chamber II, the output-end suction unit II is provided with two output-end suction parts II, one of which is connected to the upper part of the output-end shielding chamber II, and the other is connected to the lower part of the output-end shielding chamber II.

18. The preform sterilizing device according to claim 17, characterized in that: The upper spray unit II is located at the upper part of the drying chamber, and the upper spray unit II includes an upper outer nozzle II and an upper inner nozzle II. The upper outer nozzle II and the upper inner nozzle II are respectively located on both sides of the drying chamber. The distance from the upper inner nozzle II to the central axis of the star wheel disk II is smaller than the distance from the upper outer nozzle II to the central axis of the star wheel disk II. The spraying directions of the upper outer nozzle II and the upper inner nozzle II are both toward the conveying area II.

19. The preform sterilizing device according to claim 18, characterized in that: The upper outer nozzles II are arranged at intervals in the same circumferential direction around the central axis of the star wheel disk II, and the upper inner nozzles II are arranged at intervals in the same circumferential direction around the central axis of the star wheel disk II. The spraying direction of the upper outer nozzle II and the spraying direction of the upper inner nozzle II are horizontal directions, and the spraying direction of the upper outer nozzle II is opposite to the spraying direction of the upper inner nozzle II.

20. The preform sterilizing device according to claim 18 or 19, characterized in that: The spray range of the upper outer nozzle II and the spray range of the upper inner nozzle II are staggered in the same circumferential direction around the central axis of the star wheel disk II.

21. The preform sterilizing device according to claim 18 or 19, characterized in that: The upper end spray unit II further includes a top nozzle II, which is located at the top of the drying chamber, and the spraying direction of the top nozzle II is toward the conveying area II.

22. The preform sterilizing device according to claim 21, characterized in that: The top nozzle II is arranged at intervals in the same circumferential direction around the central axis of the star wheel disk II, the upper outer nozzle II is arranged at intervals in the same circumferential direction around the central axis of the star wheel disk II, and the upper inner nozzle II is arranged at intervals in the same circumferential direction around the central axis of the star wheel disk II. The spraying direction of the top nozzle II is vertically downward, the spraying direction of the upper outer nozzle II and the spraying direction of the upper inner nozzle II are horizontal directions, and the spraying direction of the upper outer nozzle II is opposite to the spraying direction of the upper inner nozzle II.

23. The preform sterilizing device according to claim 22, characterized in that: The spray range of the top nozzle II, the spray range of the upper outer nozzle II, and the spray range of the upper inner nozzle II are staggered in the same circumferential direction around the central axis of the star wheel disk II.

24. The preform sterilizing device according to claim 17, characterized in that: The lower end spray unit II is located at the lower part of the drying chamber, and the lower end spray unit II includes a bottom nozzle II and a lower side nozzle II. The bottom nozzle II is located at the bottom of the drying chamber, and the lower side nozzle II is located on the side of the drying chamber. The spraying directions of the bottom nozzle II and the lower side nozzle II are both toward the conveying area II.

25. The preform sterilizing device according to claim 24, characterized in that: The bottom nozzles II are arranged at intervals in the same circumferential direction around the central axis of the star wheel disk II, and the lower side nozzles II are arranged at intervals in the same circumferential direction around the central axis of the star wheel disk II. The spraying direction of the bottom nozzles II is vertically upward, and the spraying direction of the lower side nozzles II is horizontal.

26. The preform sterilizing device according to claim 24 or 25, characterized in that: The spray range of the bottom nozzle II and the spray range of the lower side nozzle II are staggered in the same circumferential direction around the central axis of the star wheel disk II.

27. The preform sterilizing device according to claim 26, characterized in that: The lower side nozzle II includes a lower outer nozzle II and a lower inner nozzle II, and the lower outer nozzle II and the lower inner nozzle II are respectively located on both sides of the drying chamber, and the distance from the lower inner nozzle II to the central axis of the star wheel disk II is smaller than the distance from the lower outer nozzle II to the central axis of the star wheel disk II, and the spraying directions of the lower outer nozzle II and the lower inner nozzle II are both toward the conveying area II.

28. The preform sterilizing device according to claim 27, characterized in that: The lower outer nozzles II are arranged at intervals in the same circumferential direction around the central axis of the star wheel disk II, and the lower inner nozzles II are arranged at intervals in the same circumferential direction around the central axis of the star wheel disk II. The spraying direction of the lower outer nozzles II and the spraying direction of the lower inner nozzles II are horizontal directions, and the spraying direction of the lower outer nozzles II is opposite to the spraying direction of the lower inner nozzles II.

29. The preform sterilizing device according to claim 28, characterized in that: The spray range of the lower outer nozzle II and the spray range of the lower inner nozzle II are staggered in the same circumferential direction around the central axis of the star wheel disk II.

30. A preform sterilizing device, comprising a conveying component I and a sterilizing component, wherein the conveying component I comprises a star wheel disc I and a guard plate I, wherein the star wheel disc I is provided with a conveying groove I distributed in an annular shape, wherein the guard plate I is distributed on one side of the star wheel disc I and the star wheel disc I and the guard plate I are spaced apart to form an arc-shaped conveying area I, wherein the sterilizing component is stationary relative to the guard plate I, and wherein the sterilizing component is characterized in that The sterilization component is provided with a shell I, an injection assembly I, an air suction assembly I, and an air barrier supply assembly. The shell I is provided with an input end shielding chamber I, an input end current limiting chamber, a sterilization chamber, an output end current limiting chamber, and an output end shielding chamber I arranged one by one in the same circumferential direction around the central axis of the star wheel disk I, and a side shielding chamber located on the same side of the input end shielding chamber I, the input end current limiting chamber, the sterilization chamber, the output end current limiting chamber, and the output end shielding chamber I. The width of the input end current limiting chamber and the width of the output end current limiting chamber are both greater than the width of the conveying area I, and the width of the input end current limiting chamber is greater than the width of the conveying area I. The length and width of the output-end current limiting chamber are smaller than the width of the input-end shielding chamber I, the width of the sterilization chamber, and the width of the output-end shielding chamber I. The length of the input-end current limiting chamber and the length of the output-end current limiting chamber are both greater than the spacing between adjacent conveying grooves I. The shell I is provided with an input port I connected to the input-end shielding chamber I, and an output port I connected to the output-end shielding chamber I. The side of the star wheel I with the guard plate I is embedded in the sterilization component together with the guard plate I. The conveying area I passes through the input-end shielding chamber I, the input-end current limiting chamber, the sterilization chamber, the output-end current limiting chamber, and the output-end shielding chamber I. And the conveying area I also passes through the input port I and the output port I, the injection component I includes an upper injection unit I and a lower injection unit I, the injection range of the upper injection unit I is located in the sterilization chamber and intersects with the upper part of the conveying area I, the injection range of the lower injection unit I is located in the sterilization chamber and intersects with the lower part of the conveying area I, the suction component I includes an input end suction unit I and an output end suction unit I, the input end suction unit I is provided with at least two input end suction parts I, one of which is connected to the upper part of the input end shielding chamber I, and the other is connected to the upper part of the input end shielding chamber I. Ⅰ is connected with the lower part of the input end shielding chamber Ⅰ, the output end air suction unit Ⅰ is provided with two output end air suction parts Ⅰ, one of which is connected with the upper part of the output end shielding chamber Ⅰ, and the other is connected with the lower part of the output end shielding chamber Ⅰ, the output end of the air barrier air supply assembly is connected with the shell Ⅰ and the output end of the air barrier air supply assembly is connected with the side shielding chamber, the input end shielding chamber Ⅰ, the input end current limiting chamber, the sterilization chamber, the output end current limiting chamber and the output end shielding chamber Ⅰ are all connected with the side shielding chamber through the gap between the shell Ⅰ and the star wheel Ⅰ.

31. The preform sterilizing device according to claim 30, characterized in that: The upper spray unit I is located at the upper part of the sterilization chamber, and the upper spray unit I includes a top nozzle I and an upper side nozzle I. The top nozzle I is located at the top of the sterilization chamber, and the upper side nozzle I is located at the side of the sterilization chamber. The spray directions of the top nozzle I and the upper side nozzle I are both toward the conveying area I.

32. The preform sterilizing device according to claim 31, characterized in that: The sterilization component is provided with a brake, which is distributed in the housing I and extends into the upper part of the conveying area I. The brake is located on one side of the conveying area I, and at least one upper side nozzle I is located on the other side of the conveying area I.

33. The preform sterilizing device according to claim 31 or 32, characterized in that: The top nozzles I are arranged at intervals in the same circumferential direction around the central axis of the star wheel disk I, and the upper side nozzles I are arranged at intervals in the same circumferential direction around the central axis of the star wheel disk I. The spraying direction of the top nozzles I is vertically downward, and the spraying direction of the upper side nozzles I is horizontal.

34. The preform sterilizing device according to claim 31 or 32, characterized in that: The spray range of the top nozzle I and the spray range of the upper side nozzle I are staggered in the same circumferential direction around the central axis of the star wheel disk I.

35. The preform sterilizing device according to claim 31 or 32, characterized in that: The upper side nozzle I includes an upper outer nozzle I and an upper inner nozzle I. The upper outer nozzle I and the upper inner nozzle I are respectively located on both sides of the sterilization chamber. The distance from the upper inner nozzle I to the central axis of the star wheel disk I is smaller than the distance from the upper outer nozzle I to the central axis of the star wheel disk I. The spraying directions of the upper outer nozzle I and the upper inner nozzle I are both toward the conveying area I.

36. The preform sterilizing device according to claim 35, characterized in that: The top nozzles I are arranged at intervals in the same circumferential direction around the center axis of the star wheel disk I, the upper outer nozzles I are arranged at intervals in the same circumferential direction around the center axis of the star wheel disk I, and the upper inner nozzles I are arranged at intervals in the same circumferential direction around the center axis of the star wheel disk I. The spraying direction of the top nozzle I is vertically downward, the spraying direction of the upper outer nozzle I and the spraying direction of the upper inner nozzle I are horizontal directions, and the spraying direction of the upper outer nozzle I is opposite to the spraying direction of the upper inner nozzle I.

37. The preform sterilizing device according to claim 35, characterized in that: The spray range of the top nozzle I, the spray range of the upper outer nozzle I, and the spray range of the upper inner nozzle I are staggered in the same circumferential direction around the central axis of the star wheel disk I.

38. The preform sterilizing device according to claim 30, characterized in that: The lower end spray unit I is located at the lower part of the sterilization chamber, and the lower end spray unit I includes a bottom nozzle I and a lower side nozzle I. The bottom nozzle I is located at the bottom of the sterilization chamber, and the lower side nozzle I is located on the side of the sterilization chamber. The spraying directions of the bottom nozzle I and the lower side nozzle I are both toward the conveying area I.

39. The preform sterilizing device according to claim 38, characterized in that: The bottom nozzles I are arranged at intervals in the same circumferential direction around the central axis of the star wheel disk I, and the lower side nozzles I are arranged at intervals in the same circumferential direction around the central axis of the star wheel disk I. The spraying direction of the bottom nozzles I is vertically upward, and the spraying direction of the lower side nozzles I is horizontal.

40. The preform sterilizing device according to claim 39, characterized in that: The spray range of the bottom nozzle I and the spray range of the lower side nozzle I are staggered in the same circumferential direction around the central axis of the star wheel disk I.

41. The preform sterilizing device according to claim 40, characterized in that: The lower side nozzle I includes a lower outer nozzle I and a lower inner nozzle I. The lower outer nozzle I and the lower inner nozzle I are respectively located on both sides of the sterilization chamber. The distance from the lower inner nozzle I to the central axis of the star wheel disk I is smaller than the distance from the lower outer nozzle I to the central axis of the star wheel disk I. The spraying directions of the lower outer nozzle I and the lower inner nozzle I are both toward the conveying area I.

42. The preform sterilizing device according to claim 41, characterized in that: The bottom nozzles I are arranged at intervals in the same circumferential direction around the central axis of the star wheel disk I, the lower outer nozzles I are arranged at intervals in the same circumferential direction around the central axis of the star wheel disk I, and the lower inner nozzles I are arranged at intervals in the same circumferential direction around the central axis of the star wheel disk I. The spraying direction of the lower outer nozzle I and the spraying direction of the lower inner nozzle I are horizontal directions, and the spraying direction of the lower outer nozzle I is opposite to the spraying direction of the lower inner nozzle I.

43. The preform sterilizing device according to claim 42, characterized in that: The spray range of the bottom nozzle I, the spray range of the lower outer nozzle I, and the spray range of the lower inner nozzle I are staggered in the same circumferential direction around the central axis of the star wheel disk I.

44. The preform sterilizing device according to claim 30, characterized in that: A terminal current limiting chamber is provided inside the shell I, and the output end shielding chamber I and the terminal current limiting chamber are arranged one by one in the same circumferential direction around the central axis of the star wheel disk I, one end of the terminal current limiting chamber is connected with the output end shielding chamber I, and the other end of the terminal current limiting chamber is connected with the output port I, the width of the terminal current limiting chamber is greater than the width of the conveying area I, and the width of the terminal current limiting chamber is less than the width of the output end shielding chamber I.

45. The preform sterilizing device according to claim 30, characterized in that: The shell body I is provided with a drainage baffle I, which is located inside the side shielding chamber. The drainage baffle I is perpendicular to the central axis of the star wheel disk I. The drainage baffle I is provided with a through hole. The drainage baffle I separates the side shielding chamber into a guide chamber and a transition chamber. The output end of the air barrier air supply assembly is connected to the transition chamber. The star wheel disk I is provided with a drainage baffle II, which extends into the guide chamber. An outer flow limiting channel is formed between one side of the drainage baffle II and the shell body I, and an inner flow limiting channel is formed between the other side of the drainage baffle II and the shell body I. Both the outer flow limiting channel and the inner flow limiting channel are connected to other parts of the guide chamber. The outer flow limiting channel is connected to the outside through the gap between the shell body I and the star wheel disk I. The input end shielding chamber I, the input end flow limiting chamber, the sterilization chamber, the output end flow limiting chamber, and the output end shielding chamber I are all connected to the inner flow limiting channel through the gap between the shell body I and the star wheel disk I.

46. ​​The preform sterilizing device according to claim 30, characterized in that: The preform sterilizing device also includes a conveying component II and a drying component. The conveying component II includes a star wheel disk II and a guard plate II. The guard plate II is distributed on one side of the star wheel disk II and the star wheel disk II and the guard plate II are separated to form an arc-shaped conveying area II. The drying component is stationary relative to the guard plate II. The conveying area II is connected and connected with the conveying area I. The drying component is provided with a shell II, an injection component II, and an air suction component II. The shell II is provided with an input end shielding chamber II, a drying chamber, an input end shielding chamber II, and a drying chamber arranged one by one in the same circumferential direction around the central axis of the star wheel disk II. The output end shielding chamber II, the shell II is provided with an input end partition between the input end shielding chamber II and the drying chamber, the input end partition is provided with a through hole, the input end shielding chamber II is connected with the drying chamber through the through hole, the shell II is provided with an output end partition between the drying chamber and the output end shielding chamber II, the output end partition is provided with a through hole, the drying chamber is connected with the output end shielding chamber II through the through hole, the shell II is provided with an input port II connected with the input end shielding chamber II, and an output port II connected with the output end shielding chamber II, the shell II is connected with the shell I The input port II is connected to the output port I, the side of the star wheel II on which the guard plate II is distributed is embedded in the drying component together with the guard plate II, the conveying area II passes through the input end shielding chamber II, the drying chamber, and the output end shielding chamber II, and the conveying area II also passes through the input port II, the output port II, the through hole on the input end partition, and the through hole on the output end partition, the injection assembly II includes an upper injection unit II and a lower injection unit II, the injection range of the upper injection unit II intersects with the upper part of the conveying area II, and the injection range of the lower injection unit II intersects with the conveying area II The lower part of the suction component II comprises an input-end suction unit II and an output-end suction unit II, the input-end suction unit II is provided with two input-end suction parts II, one of which is connected to the upper part of the input-end shielding chamber II, and the other is connected to the lower part of the input-end shielding chamber II, the output-end suction unit II is provided with two output-end suction parts II, one of which is connected to the upper part of the output-end shielding chamber II, and the other is connected to the lower part of the output-end shielding chamber II.

47. The preform sterilizing device according to claim 46, characterized in that: The upper spray unit II is located at the upper part of the drying chamber, and the upper spray unit II includes an upper outer nozzle II and an upper inner nozzle II. The upper outer nozzle II and the upper inner nozzle II are respectively located on both sides of the drying chamber. The distance from the upper inner nozzle II to the central axis of the star wheel disk II is smaller than the distance from the upper outer nozzle II to the central axis of the star wheel disk II. The spraying directions of the upper outer nozzle II and the upper inner nozzle II are both toward the conveying area II.

48. The preform sterilizing device according to claim 47, characterized in that: The upper outer nozzles II are arranged at intervals in the same circumferential direction around the central axis of the star wheel disk II, and the upper inner nozzles II are arranged at intervals in the same circumferential direction around the central axis of the star wheel disk II. The spraying direction of the upper outer nozzle II and the spraying direction of the upper inner nozzle II are horizontal directions, and the spraying direction of the upper outer nozzle II is opposite to the spraying direction of the upper inner nozzle II.

49. The preform sterilizing device according to claim 47 or 48, characterized in that: The spray range of the upper outer nozzle II and the spray range of the upper inner nozzle II are staggered in the same circumferential direction around the central axis of the star wheel disk II.

50. The preform sterilizing device according to claim 47 or 48, characterized in that: The upper end spray unit II further includes a top nozzle II, which is located at the top of the drying chamber, and the spraying direction of the top nozzle II is toward the conveying area II.

51. The preform sterilizing device according to claim 50, characterized in that: The top nozzle II is arranged at intervals in the same circumferential direction around the central axis of the star wheel disk II, the upper outer nozzle II is arranged at intervals in the same circumferential direction around the central axis of the star wheel disk II, and the upper inner nozzle II is arranged at intervals in the same circumferential direction around the central axis of the star wheel disk II. The spraying direction of the top nozzle II is vertically downward, the spraying direction of the upper outer nozzle II and the spraying direction of the upper inner nozzle II are horizontal directions, and the spraying direction of the upper outer nozzle II is opposite to the spraying direction of the upper inner nozzle II.

52. The preform sterilizing device according to claim 51, characterized in that: The spray range of the top nozzle II, the spray range of the upper outer nozzle II, and the spray range of the upper inner nozzle II are staggered in the same circumferential direction around the central axis of the star wheel disk II.

53. The preform sterilizing device according to claim 46, characterized in that: The lower end spray unit II is located at the lower part of the drying chamber, and the lower end spray unit II includes a bottom nozzle II and a lower side nozzle II. The bottom nozzle II is located at the bottom of the drying chamber, and the lower side nozzle II is located on the side of the drying chamber. The spraying directions of the bottom nozzle II and the lower side nozzle II are both toward the conveying area II.

54. The preform sterilizing device according to claim 53, characterized in that: The bottom nozzles II are arranged at intervals in the same circumferential direction around the central axis of the star wheel disk II, and the lower side nozzles II are arranged at intervals in the same circumferential direction around the central axis of the star wheel disk II. The spraying direction of the bottom nozzles II is vertically upward, and the spraying direction of the lower side nozzles II is horizontal.

55. The preform sterilizing device according to claim 53 or 54, characterized in that: The spray range of the bottom nozzle II and the spray range of the lower side nozzle II are staggered in the same circumferential direction around the central axis of the star wheel disk II.

56. The preform sterilizing device according to claim 55, characterized in that: The lower side nozzle II includes a lower outer nozzle II and a lower inner nozzle II, and the lower outer nozzle II and the lower inner nozzle II are respectively located on both sides of the drying chamber, and the distance from the lower inner nozzle II to the central axis of the star wheel disk II is smaller than the distance from the lower outer nozzle II to the central axis of the star wheel disk II, and the spraying directions of the lower outer nozzle II and the lower inner nozzle II are both toward the conveying area II.

57. The preform sterilizing device according to claim 56, characterized in that: The lower outer nozzles II are arranged at intervals in the same circumferential direction around the central axis of the star wheel disk II, and the lower inner nozzles II are arranged at intervals in the same circumferential direction around the central axis of the star wheel disk II. The spraying direction of the lower outer nozzles II and the spraying direction of the lower inner nozzles II are horizontal directions, and the spraying direction of the lower outer nozzles II is opposite to the spraying direction of the lower inner nozzles II.

58. The preform sterilizing device according to claim 57, characterized in that: The spray range of the lower outer nozzle II and the spray range of the lower inner nozzle II are staggered in the same circumferential direction around the central axis of the star wheel disk II.

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