Bottle inner cavity cleaning head and cleaning device

Abstract

The utility model relates to the technical field of bottle body manufacturing mainly discloses a bottle body inner chamber cleaning head and cleaning device, including air outlet main part, the air outlet main part is opened with the spray flow channel in, vacuum main part is set up in the air outlet main part outside, and the backflow channel is opened in it, the spray flow channel is communicated with the outside through part backflow channel, drive frame, the drive frame includes synchronous board and drive assembly, the synchronous board is fixed on drive assembly output end, and the bottle body inner chamber cleaning head is set up with several groups on the synchronous board, pumping unit includes ion fan and vacuum machine, the ion fan is linked with the air outlet main part, and the vacuum machine is linked with the vacuum main part, the utility model solves the problem that the existing device has the problem such as cleaning dead angle, poor cleaning effect.

Description

Technical Field

[0001] This utility model relates to the technical field of bottle manufacturing, and in particular to a bottle internal cavity cleaning head and cleaning device. Background Technology

[0002] In the pharmaceutical bottle manufacturing industry, the cleanliness of the bottle's internal cavity is a core indicator for ensuring the safety and stability of drug storage. Therefore, internal cavity cleaning is always a critical quality control process in the production process. However, the existing pharmaceutical bottle manufacturing process has shortcomings from the source of cleanliness control: after the preform is heated and blown into the bottle body, there is no process designed to clean the internal cavity immediately after molding. This results in the direct retention of impurities such as mold debris that may have adhered during the molding process. Even if mainstream industry technologies such as high-pressure water rinsing, compressed air purging, or solvent immersion are used subsequently, it is difficult to achieve thorough cleaning.

[0003] Furthermore, various cleaning methods themselves have significant drawbacks: high-pressure water rinsing easily creates cleaning dead zones in irregularly shaped structures such as narrow bottle openings and bottom grooves, making it even more difficult to completely dry residual moisture and providing conditions for microbial growth; compressed air purging not only has limited effectiveness in removing stubborn impurities such as mold debris left from previous cleaning, but also introduces additional particulate contamination if the air source filtration is substandard; solvent soaking may leave chemical residues, failing to meet pharmaceutical-grade cleanliness standards and increasing environmental treatment costs. These process loopholes and technical defects combined directly result in low bottle cleaning pass rates and limited production efficiency, making it difficult to meet the stringent requirements of the pharmaceutical industry for high cleanliness and residue-free cleaning. Utility Model Content

[0004] Therefore, the technical problem to be solved by this utility model is that: after the existing bottle preform is heated and blown into a bottle body, there is no process for cleaning the inner cavity immediately after molding, and the cleaning device itself also has problems such as cleaning dead corners and poor cleaning effect.

[0005] The above-mentioned technical problems are solved by the following technical solution: This utility model proposes a bottle inner cavity cleaning head, which includes an air outlet body with a spray channel inside the air outlet body; a vacuum body is disposed outside the air outlet body and has a return channel inside it, and the spray channel is connected to the outside through a portion of the return channel.

[0006] In a preferred embodiment of the bottle cavity cleaning head of this utility model: the air outlet body includes a connecting pipe and a spray cap coaxially fixed on its top, and a nozzle is also fixed on the top of the spray cap.

[0007] In a preferred embodiment of the bottle cavity cleaning head of this utility model: a first flow channel is provided inside the connecting tube, and a first buffer cavity is provided at the top end of the connecting tube, wherein the inner diameter of the first buffer cavity is larger than the inner diameter of the first flow channel.

[0008] In a preferred embodiment of the bottle cavity cleaning head of this utility model: a second flow channel is provided inside the spray cap and the nozzle, the second flow channel is coaxially arranged with the first flow channel and the first buffer cavity, and the inner diameter of the second flow channel is smaller than that of the first flow channel; the second flow channel, the first buffer cavity and the first flow channel constitute a spray channel.

[0009] In a preferred embodiment of the bottle cavity cleaning head of this utility model: the vacuum body includes a base shell and a connecting shell fixed on its top, and a sleeve shell is fixedly connected to the top of the connecting shell; a buckle groove is opened on the outer wall of the sleeve shell, and a sealing ring is fitted in the buckle groove.

[0010] In a preferred embodiment of the bottle cavity cleaning head of this utility model: a connecting cavity, a communicating cavity, and a docking cavity are sequentially formed inside the housing, and the connecting shell is threaded into the connecting cavity; the communicating cavity and the docking cavity are respectively connected to a vacuum tube and an air inlet tube, the communicating tube is threaded into the docking cavity, and the air inlet tube is connected to the first flow channel through the docking cavity; an electrode insertion hole is also formed on the docking cavity, and an electrode terminal of an ion generator is fixedly inserted into the electrode insertion hole.

[0011] In a preferred embodiment of the bottle inner cavity cleaning head of this utility model: a second buffer cavity and a mixing channel are respectively provided in the connecting shell and the sleeve shell, the nozzle is placed in the mixing channel, and the mixing channel covers the outlet position of the second channel; the connecting cavity, the communicating cavity, the docking cavity, the second buffer cavity and the mixing channel form a return channel.

[0012] To solve the above problems, this utility model also proposes the following technical solution: a bottle inner cavity cleaning device, which further includes a drive frame, the drive frame including a synchronization plate and a drive assembly, the synchronization plate being fixed on the output end of the drive assembly, and the bottle inner cavity cleaning head being provided with several sets on the synchronization plate; a pumping unit including an ion fan and a vacuum machine, the ion fan being connected to the air outlet body, and the vacuum machine being connected to the vacuum body.

[0013] In a preferred embodiment of the bottle cavity cleaning device of this utility model: the driving assembly includes a base and a driving cylinder fixed on one side thereto, and the piston tube of the driving cylinder is fixedly connected to the synchronization plate.

[0014] In a preferred embodiment of the bottle cavity cleaning device of this utility model: the ion fan is connected to several sets of first air pipes, and the other end of the first air pipe is fixedly connected to the air inlet pipe; the vacuum machine is connected to several sets of second air pipes, and the other end of the second air pipe is fixedly connected to the vacuum tube.

[0015] The beneficial effects of this utility model are as follows: First, this device integrates expansion, cleaning, and neutralization, simultaneously completing these three core functions, significantly shortening process time, reducing the need for multiple sets of equipment, and saving considerable floor space. Second, by utilizing the buffering effect of the first buffer chamber and the pressure stabilizing effect of the return channel, this device effectively balances airflow pressure fluctuations, significantly reducing the risk of bottle deformation. Third, through ion air flushing combined with return channel evacuation, it efficiently removes residues from dead corners of the inner cavity, ensuring no liquid or chemical residues remain, and significantly reducing the risk of microbial detection. Furthermore, the ion air can quickly neutralize the static electricity of the bottle, extending the ion interaction time and effectively reducing particle adsorption problems in subsequent processes. Finally, this device supports the replacement of vacuum bodies of different specifications, adapting to various diameters and volumes of medicine bottles, making changeover operations and daily maintenance more convenient. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings of the embodiments of this utility model will be briefly described below. Obviously, the drawings described below only relate to some embodiments of this utility model and are not intended to limit the scope of this utility model. Wherein: Figure 1 A structural diagram of the cleaning head inside the bottle is shown; Figure 2 A cross-sectional view of the air outlet body of the cleaning head inside the bottle is shown; Figure 3 A cross-sectional view of the vacuum body of the cleaning head inside the bottle is shown; Figure 4 A schematic diagram showing the internal gas flow direction of the cleaning head inside the bottle is shown; Figure 5 The overall structural diagram of the bottle internal cavity cleaning device is shown; Figure 6 A structural diagram of the drive frame of the bottle internal cavity cleaning device is shown; Figure 7 A schematic diagram of the installation of the bottle internal cavity cleaning device is shown. Detailed Implementation

[0017] To enable those skilled in the art to better understand this utility model, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0018] The terminology used in this invention refers to those general terms currently widely used in the art in consideration of the functionality of this invention; however, these terms may vary according to the intent, precedent, or new technology of those skilled in the art. Furthermore, specific terms may be chosen by the applicant, and in such cases, their detailed meanings will be described in the detailed description of this invention. Therefore, the terminology used in this specification should not be construed as simple names, but rather based on the meaning of the terms and the overall description of this invention.

[0019] Reference Figures 1 to 7 This embodiment provides a bottle cavity cleaning head, characterized in that: it includes an air outlet body 100, and an air outlet body 100 has a jet channel A inside. The jet channel A is used to transport ion air, providing an airflow carrier for cleaning the bottle cavity, expansion support and static electricity neutralization. Moreover, the structure of each section of the jet channel A is adapted to the requirements of airflow stabilization and focusing, ensuring efficient function realization.

[0020] The vacuum body 200 is located outside the air outlet body 100. It has a return channel B inside. The jet channel A is connected to the outside through part of the return channel B. The return channel B can form a negative pressure environment to recover the airflow carrying the residue after the jet channel A is sprayed out, so as to avoid the residue from leaking out and causing secondary pollution. At the same time, it helps to stabilize the pressure inside the bottle.

[0021] Specifically, the air outlet body 100 includes a connecting pipe 101 and a spray cap 102 coaxially fixed on its top. The two adopt connection processes adapted to medical-grade cleanliness requirements, such as metal welding, plastic ultrasonic welding, and sealed detachable connection, to ensure coaxiality and sealing and prevent air leakage. A nozzle 103 is also fixed at the top of the spray cap 102. The top of the nozzle 103 is rounded to avoid scratching the inner wall when it is inserted into the bottle.

[0022] A first flow channel A1 is provided inside the connecting pipe 101. The first flow channel A1 is a straight channel structure, and the inner wall is polished to reduce airflow resistance and reduce turbulence. A first buffer chamber A2 is provided at the top of the connecting pipe 101. The inner diameter of the first buffer chamber A2 is larger than the inner diameter of the first flow channel A1. It can reduce the pressure and stabilize the flow of ion wind flowing in from the first flow channel A1, eliminate pressure fluctuations when the airflow is input, and lay the foundation for subsequent stable jetting.

[0023] The spray cap 102 and nozzle 103 are provided with a second flow channel A3. The second flow channel A3 is coaxially arranged with the first flow channel A1 and the first buffer chamber A2 to ensure that the airflow flows in a straight line and avoids deviating to one side, which would affect the uniform expansion of the bottle. The inner diameter of the second flow channel A3 is smaller than that of the first flow channel A1, forming a contraction structure, which can focus the buffered ion wind, increase the outlet flow rate, and enhance the scouring force on the dead corners of the bottle's inner cavity. The second flow channel A3, the first buffer chamber A2 and the first flow channel A1 form the spray channel A, and the sections are smoothly connected to realize the "stable flow-focusing" airflow processing flow.

[0024] The vacuum body 200 includes a base shell 201 and a connecting shell 202 fixed on its top. The base shell 201 is the basic support structure of the vacuum body 200. The connecting shell 202 is used to connect the base shell 201 and the sleeve shell 203 to adjust the volume of the middle section of the return channel B. The sleeve shell 203 is fixedly connected to the top of the connecting shell 202. The sleeve shell 203 is used to cover the outlet area of ​​the nozzle 103 to ensure that the ejected airflow completely enters the return channel B.

[0025] The outer wall of the casing 203 has a groove 203a, and a sealing ring 203b is fitted inside the groove 203a. The sealing ring 203b is made of silicone rubber or fluororubber that is resistant to aging and detergents. When the cleaning head is inserted into the bottle, the sealing ring 203b can fit tightly against the inner wall of the bottle mouth to form a sealing structure, preventing outside air from entering the return channel B and affecting the negative pressure effect, while blocking the overflow path of residue.

[0026] The housing 201 has a connecting cavity B1, a connecting cavity B2, and a docking cavity B3 arranged in sequence. The chambers are coaxially arranged to form a continuous return channel, which guides the smooth flow of the recycled air and avoids dead corners. The connecting shell 202 is threaded into the connecting cavity B1. The position of the connecting shell 202 can be finely adjusted by the thread engagement depth, thereby changing the volume of the return channel B to adapt to the recycling needs of bottles with different volumes.

[0027] The connecting cavity B2 and the docking cavity B3 are also connected to a vacuum tube 201a and an air inlet tube 201b, respectively. The vacuum tube 201a is used to introduce negative pressure; the air inlet tube 201b is used to input ion air; the connecting tube 101 is threaded in the docking cavity B3, and the air inlet tube 201b is connected to the first flow channel A1 through the docking cavity B3. The threaded connection method facilitates the disassembly and maintenance of the air outlet body 100, and can ensure that the air inlet tube 201b is accurately connected to the first flow channel A1 through the docking cavity B3 without airflow leakage.

[0028] The docking cavity B3 is also provided with an electrode insertion hole, in which the electrode terminal of the ion generator is fixedly inserted. The electrode terminal and the insertion hole are interference fit to ensure sealing and stability. The length of the terminal extending into the docking cavity B3 is provided that it does not block the first flow channel A1, so that the high voltage electric field released can completely cover the airflow output from the first flow channel A1, so that the airflow can be fully ionized to generate ion wind and realize the electrostatic neutralization function.

[0029] The connecting shell 202 and the sleeve shell 203 are respectively provided with a second buffer chamber B4 and a mixing channel B5. The second buffer chamber B4 can stabilize the recovered airflow and prevent airflow turbulence from causing residue deposition. The mixing channel B5 is used to accommodate the airflow ejected from the nozzle 103 and mix it with the air in the inner cavity of the bottle. The nozzle 103 is placed in the mixing channel B5, and the mixing channel B5 covers the outlet position of the second channel A3 to ensure that the airflow does not leak out. The connecting chamber B1, the connecting chamber B2, the docking chamber B3, the second buffer chamber B4 and the mixing channel B5 form the return channel B. The chambers work together to form a complete airflow recovery path.

[0030] Furthermore, this embodiment also provides a bottle cavity cleaning device, which includes the aforementioned bottle cavity cleaning head and a drive frame 300. The drive frame 300 is used to drive the cleaning head to perform lifting, translation and other actions, adapting to the automation operation requirements of the medicine bottle production line. The drive frame 300 includes a synchronization plate 301 and a drive assembly 302. The synchronization plate 301 is fixed on the output end of the drive assembly 302 and can move synchronously with the drive assembly 302. Several sets of bottle cavity cleaning heads are arranged on the synchronization plate 301. Multiple sets of cleaning heads can work synchronously, improving the processing efficiency of the production line and adapting to the needs of batch production.

[0031] The bottle cavity cleaning device is installed downstream of the bottle forming device. The bottle is sent to the top of the bottle cavity cleaning device as soon as it is formed. The drive component 302 drives the air outlet body 100 to move upward and connect with the bottle mouth to clean the bottle cavity.

[0032] The extraction unit 400 includes an ion fan 401 and a vacuum machine 402. The ion fan 401 is connected to the air outlet body 100 and provides a stable source of ion air for the jet channel A. The ion fan 401 has an adjustable wind speed to adapt to the airflow requirements of different medicine bottles. The vacuum machine 402 is connected to the vacuum body 200 and provides negative pressure for the return channel B. The vacuum machine 402 has an adjustable negative pressure intensity to ensure effective recovery of residues without affecting the expansion state of the bottle.

[0033] The drive assembly 302 includes a base 302a and a drive cylinder 302b fixed on one side thereon. The base 302a provides a stable support for the drive assembly 302 and can be fixed on the production line frame. The piston tube of the drive cylinder 302b is fixedly connected to the synchronization plate 301. The drive cylinder 302b can be pneumatically or electrically driven. The piston rod extends and retracts to drive the synchronization plate 301 to rise and fall, thereby adjusting the depth of the cleaning head inserted into the bottle to adapt to the processing needs of medicine bottles of different heights.

[0034] Several sets of first air pipes 401a are connected to the ion fan 401. The other end of the first air pipe 401a is fixedly connected to the air inlet pipe 201b. The first air pipe 401a is made of a high-pressure resistant and anti-aging flexible hose material, which makes it easy for the cleaning head to move with the synchronous plate 301. Each set of first air pipes 401a can be controlled independently to adapt to the airflow adjustment needs of different cleaning heads.

[0035] Several sets of second air pipes 402a are connected to the vacuum machine 402. The other end of the second air pipe 402a is fixedly connected to the vacuum pipe 201a. The second air pipe 402a is made of wear-resistant and negative pressure-resistant flexible hose material to ensure stable negative pressure transmission. Each set of second air pipes 402a can independently adjust the negative pressure to adapt to the recycling needs of different cleaning heads.

[0036] In summary, before use, check the connection status of each component to ensure that the first air pipe 401a and the air inlet pipe 201b, and the second air pipe 402a and the vacuum pipe 201a are tightly connected without leakage, the electrode terminals are firmly inserted, and the sealing ring 203b is undamaged. According to the height and volume of the medicine bottle to be processed, adjust the extension and retraction of the piston rod of the drive cylinder 302b to determine the maximum distance that the synchronous plate 301 drives the cleaning head to descend. At the same time, adjust the wind speed of the ion fan 401 and the negative pressure intensity of the vacuum machine 402 to match the expansion support of the medicine bottle and the requirements for residue recovery.

[0037] Furthermore, the production line is started, and the pharmaceutical plastic bottles manufactured by the molding mechanism are transferred to the underside of the cleaning head by the conveying device. The conveying device triggers the positioning signal, the drive component 302 is started, the piston rod of the drive cylinder 302b extends, and drives the synchronous plate 301 and each group of cleaning heads to rise synchronously until the nozzle 103 extends into the inner cavity of the bottle. The sealing ring 203b on the outer wall of the casing 203 fits tightly with the inner wall of the bottle mouth to form a seal.

[0038] Ionizing blower 401 and vacuum machine 402 are started simultaneously. The ionizing air generated by ionizing blower 401 enters docking cavity B3 through first air pipe 401a and air inlet pipe 201b, and then flows into first flow channel A1 of connecting pipe 101. After the ionizing air is depressurized and stabilized in first buffer cavity A2, it enters second flow channel A3 and is focused and accelerated. Finally, it is sprayed into the inner cavity of bottle from nozzle 103. On the one hand, it supports the bottle with stable pressure to maintain the expansion state and prevent deformation due to cooling and contraction. On the other hand, it washes away residual debris from the mold in the inner cavity of the bottle. At the same time, the ionizing air neutralizes the static electricity generated by the demolding of the bottle and avoids the adsorption of impurities.

[0039] Furthermore, under the negative pressure of the vacuum machine 402, the gas flow carrying the residue enters the mixing channel B5 of the casing 203 from the inner cavity of the bottle. After being stabilized by the second buffer chamber B4 of the connecting shell 202, it flows sequentially through the connecting chamber B1 and the connecting chamber B2 of the seat shell 201, and is finally extracted and recovered by the vacuum machine 402 through the vacuum tube 201a and the second gas tube 402a, thus realizing the separation of residue and gas flow.

[0040] After the cleaning operation is completed, the ion fan 401 and vacuum machine 402 are turned off first. Then the piston rod of the drive cylinder 302b retracts, driving the synchronous plate 301 and the cleaning head to descend and reset. The cleaned medicine bottles are transferred to the next process by the conveying device. If continuous operation is required, the device repeats the above steps to process subsequent medicine bottles. After periodic shutdown, the air outlet body 100 and vacuum body 200 can be disassembled, the inner walls of the spray channel A and return channel B can be cleaned, and the aged sealing ring 203b can be replaced to ensure the continuous and stable operation of the device.

[0041] Finally, it should be noted that the methods and devices described in detail above are merely embodiments, and those skilled in the art can modify these embodiments in different ways as long as they do not depart from the scope of this utility model.

Claims

1. A bottle internal cavity cleaning head, characterized in that: include, An air outlet body (100) is provided with a jet channel (A) inside the air outlet body (100); The vacuum body (200) is located outside the air outlet body (100) and has a return channel (B) inside it. The jet channel (A) is connected to the outside through part of the return channel (B).

2. The bottle inner cavity cleaning head according to claim 1, characterized in that: The air outlet body (100) includes a connecting pipe (101) and a spray cap (102) coaxially fixed on its top, and a nozzle (103) is also fixed on the top of the spray cap (102).

3. The bottle inner cavity cleaning head according to claim 2, characterized in that: The connecting pipe (101) has a first flow channel (A1) inside, and a first buffer cavity (A2) is provided at the top of the connecting pipe (101). The inner diameter of the first buffer cavity (A2) is larger than the inner diameter of the first flow channel (A1).

4. The bottle inner cavity cleaning head according to claim 2 or 3, characterized in that: A second flow channel (A3) is provided inside the spray cap (102) and the nozzle (103). The second flow channel (A3) is coaxially arranged with the first flow channel (A1) and the first buffer chamber (A2), and the inner diameter of the second flow channel (A3) is smaller than that of the first flow channel (A1). The second flow channel (A3), the first buffer chamber (A2), and the first flow channel (A1) together form the jet channel (A).

5. The bottle inner cavity cleaning head according to claim 2 or 3, characterized in that: The vacuum body (200) includes a base shell (201) and a connecting shell (202) fixed on its top, with a sleeve (203) fixedly connected to the top of the connecting shell (202). The outer wall of the casing (203) is provided with a fastening groove (203a), and a sealing ring (203b) is fitted inside the fastening groove (203a).

6. The bottle inner cavity cleaning head according to claim 5, characterized in that: The housing (201) is provided with a connecting cavity (B1), a communicating cavity (B2) and a docking cavity (B3) in sequence, and the connecting shell (202) is threaded into the connecting cavity (B1); The connecting cavity (B2) and the docking cavity (B3) are also respectively connected to a vacuum tube (201a) and an air inlet tube (201b). The connecting tube (101) is threaded in the docking cavity (B3), and the air inlet tube (201b) is connected to the first flow channel (A1) through the docking cavity (B3). The docking cavity (B3) is also provided with an electrode insertion hole, and the electrode terminal of the ion generator is fixedly inserted into the electrode insertion hole.

7. The bottle inner cavity cleaning head according to claim 6, characterized in that: The connecting shell (202) and the sleeve (203) are respectively provided with a second buffer chamber (B4) and a mixing channel (B5). The nozzle (103) is placed in the mixing channel (B5), and the mixing channel (B5) covers the outlet position of the second channel (A3). The connecting cavity (B1), the communicating cavity (B2), the docking cavity (B3), the second buffer cavity (B4), and the mixing channel (B5) constitute the return channel (B).

8. A bottle internal cavity cleaning device, characterized in that: It also includes, The drive frame (300) includes a synchronization plate (301) and a drive assembly (302). The synchronization plate (301) is fixed on the output end of the drive assembly (302). Several sets of the bottle inner cavity cleaning heads are provided on the synchronization plate (301). The extraction unit (400) includes an ion fan (401) and a vacuum machine (402), wherein the ion fan (401) is connected to the air outlet body (100) and the vacuum machine (402) is connected to the vacuum body (200).

9. The bottle internal cavity cleaning device according to claim 8, characterized in that: The drive assembly (302) includes a base (302a) and a drive cylinder (302b) fixed on one side thereof, the piston tube of the drive cylinder (302b) being fixedly connected to the synchronization plate (301).

10. The bottle cavity cleaning device according to claim 8 or 9, characterized in that: The ion fan (401) is connected to several sets of first air pipes (401a), and the other end of the first air pipe (401a) is fixedly connected to the air inlet pipe (201b). The vacuum machine (402) is connected to several sets of second air pipes (402a), and the other end of the second air pipe (402a) is fixedly connected to the vacuum pipe (201a).

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