A blow molding machine for serum bottle production operated in a continuous mode and a working method thereof

Abstract

The application belongs to the technical field of blow molding and discloses a serum bottle production blow molding machine capable of continuously operating and a working method thereof, which comprises a rack, the top end of the rack is fixedly installed with lateral guide rails at equal distances, the number of the lateral guide rails is three in total, the top end of each of the three lateral guide rails is movably clamped with a mold assembly, and a plastic pretreatment assembly is arranged above the mold assembly on the left side. The application utilizes the heat generated when the plastic is melted, absorbs the heat by air, and then converts the high-pressure air into power to realize the up-and-down reciprocating displacement of the bottom plate, and simultaneously realizes the mold closing and mold opening of the mold assembly. The automatic conveying of the guide wheels is matched, the automatic cutting and automatic conveying of the hollow parison to the blow molding position are realized, and the mold closing is automatically completed. The whole process is automatically completed, the parison part does not need to be manually controlled to be transported in each process, the operation process is simplified, and the processing efficiency is improved.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of blow molding, and particularly relates to a serum bottle production blow molding machine capable of continuous operation and a working method thereof. BACKGROUND

[0002] A serum bottle is a container widely used in the biomedical field, and is mainly used for storing serum, culture medium, buffer solution, various reagents and the like. The serum bottle is made of various materials, and common materials include PET, PETG and borosilicate glass. The PET and PETG materials have good chemical stability and transparency, and the borosilicate glass has excellent high-temperature resistance and chemical corrosion resistance. The serum bottle made of plastic is generally produced by injection molding or blow molding, and the blow molding machine is generally used for production.

[0003] The blow molding machine sends preheated plastic particles or preformed plastic blanks into a mold, and uses high-pressure airflow to blow the plastic into the shape of a bottle. In the production of serum bottles, the blow molding machine plays a crucial role, and it can efficiently produce serum bottles that meet the requirements. When the conventional serum bottle is blow molded, the molten plastic is injected into the mold and then blow molded by high-pressure airflow. The entire blow molding process needs to be transported between different devices, that is, the plastic is first melted and formed, and then blow molded. The entire process is relatively cumbersome.

[0004] At the same time, during the blow molding process, a gas pump is generally used to output high-pressure airflow to the inside of the mold. Since a certain temperature is required for blow molding, the airflow needs to be heated. In order to maintain the temperature, the prior art continuously heats the airflow, which undoubtedly increases energy consumption and significantly increases production costs. SUMMARY

[0005] The application aims to provide a serum bottle production blow molding machine capable of continuous operation and a working method thereof to solve the problems in the background.

[0006] In order to achieve the above object, the present application provides the following technical scheme: a continuous operation serum bottle production blow molding machine, comprising a rack, the top of the rack is fixedly installed with lateral guide rails at equal distances, the number of the lateral guide rails is three in total, the top of each of the three lateral guide rails is movably connected with a mold assembly, a plastic pretreatment assembly is arranged above the mold assembly on the left side, a hot air delivery head is arranged above the mold assembly in the middle, a cold air delivery head is arranged above the mold assembly on the right side, the bottom of the plastic pretreatment assembly is fixedly connected with a power assembly, the bottom of the power assembly is installed with a gas delivery assembly, the right end of the gas delivery assembly is fixedly connected with a gas delivery pipe, the end of the gas delivery pipe away from the gas delivery assembly is fixedly connected with a three-way valve arranged behind the hot air delivery head, the right end of the three-way valve is fixedly connected with a cooling cavity, the front end of the right side of the cooling cavity is in communication with the rear end of the cold air delivery head, the bottom of the rack is provided with a bottom plate, the top of the bottom plate is fixedly installed with extension rods at equal distances, the top of the bottom plate is provided with a support plate arranged below the mold assembly, the bottom of the support plate is connected with the top of the extension rods, the top of the support plate is movably installed with guide wheels at equal distances, and a micro motor is arranged in the support plate to control the rotation of the guide wheels.

[0007] Before use, the device can be fixed on the flat ground through the rack, the bottom of the plastic pretreatment assembly is also installed with an extension base for fixing the device, the bottom of the gas delivery assembly is also fixed with the ground, and the device is ready for use with plastic particles of corresponding materials.

[0008] As a further technical scheme of the present application, the plastic pretreatment assembly comprises an extrusion cavity, a feed tank is fixedly connected with the upper position close to the rear end of the extrusion cavity, a screw rod is movably installed in the interior of the extrusion cavity, a mounting seat is fixedly installed at the rear end of the extrusion cavity, a motor is fixedly installed at one end of the mounting seat, the output end of the motor is connected with the rear end of the screw rod, an electric heating die head is fixedly connected with the front end of the screw rod, the interior of the electric heating die head is in communication with the interior of the extrusion cavity, and the bottom of the electric heating die head is located directly above the top of the left mold assembly.

[0009] As a further technical scheme of the present application, an electric heating box is fixedly sleeved with the outer side of the extrusion cavity, a cavity is formed in the interior of the electric heating box and an electric heating pipe is arranged in the cavity, a fan is fixedly installed at the top of the electric heating box, the output end of the fan is in communication with the interior of the electric heating box, a first hot gas pipe is fixedly connected with the bottom of the electric heating box, and the first hot gas pipe is in communication with the power assembly.

[0010] Before injection molding, plastic particles can be put into the feed tank, at which time the plastic particles enter the inside of the extrusion cavity, at which time the electric heating box can be turned on to heat the extrusion cavity, at which time the plastic particles inside the extrusion cavity are melted, and the motor is turned on, at which time the motor can drive the screw to rotate and extrude the plastic particles in the extrusion cavity, and the molten plastic is transported to the electric heating die, and is extruded into a hollow parison by the forming action of the electric heating die and discharged through the bottom end of the electric heating die.

[0011] At the same time, the fan can be turned on to transport external air into the inside of the electric heating box, and the air can be discharged through the first hot gas pipe after absorbing the heat in the inside of the electric heating box, and transported to the power assembly.

[0012] As a further technical solution of the application, the power assembly comprises a power tank, the top end of the power tank is in communication with the bottom end of the first hot gas pipe, the bottom end of the power tank is fixedly connected in communication with the second hot gas pipe, the other end of the second hot gas pipe is in communication with the gas conveying assembly, the middle part of the power tank is movably connected with a main shaft, and the outer side of the main shaft is fixedly sleeved with an impeller located in the inside of the power tank.

[0013] As a further technical solution of the application, the front and rear sides of the main shaft penetrate through the front and rear sides of the power tank and are fixedly sleeved with a first linkage rod, the end of the first linkage rod away from the main shaft is movably connected with a second linkage rod through a rotating shaft, the power assembly further comprises a movable seat located at the bottom end of the second linkage rod, the top end of the movable seat is movably connected with the two second linkage rods, the middle part of the bottom end of the movable seat is connected with the gas conveying assembly, and can only move up and down under the limiting of the gas conveying assembly, the front side of the movable seat is fixedly connected with a linkage frame, and the other end of the linkage frame is connected with the rear end of the left side of the bottom plate.

[0014] High-temperature and high-pressure air can enter the inside of the power tank through the first hot gas pipe, at which time the impeller can be driven to rotate, at which time the main shaft rotates, and at the same time, high-temperature and high-pressure air can be discharged through the second hot gas pipe and enter the inside of the gas conveying assembly.

[0015] When the main shaft rotates, the first linkage rod swings and drives the second linkage rod to swing synchronously, and exerts an upward pulling force or a downward pushing force on the movable seat, at which time the movable seat can move reciprocatingly up and down under the guidance of the gas conveying assembly, and drive the linkage frame to move reciprocatingly up and down synchronously.

[0016] As a further technical scheme of the present application, the mold assembly comprises two symmetrical front and rear molds, the front mold and the rear mold form a complete mold cavity when combined, the bottom end of the front mold and the rear mold is fixedly connected with a guide rod, the bottom end of the guide rod is movably connected with the lateral guide rail, and the guide rod moves forward and backward relative to the lateral guide rail.

[0017] As a further technical scheme of the present application, the bottom end of the guide rod is fixedly connected with a first fixed seat, one end of the first fixed seat away from the guide rod is movably connected with a connecting rod through a rotating shaft, one end of the connecting rod away from the first fixed seat is movably connected with a second fixed seat through a rotating shaft, the bottom end of the second fixed seat is connected with the top end of the bottom plate, and the two second fixed seats are installed on the front and rear sides of the top end of the bottom plate.

[0018] When the linkage frame moves downward, the bottom plate and the supporting plate are synchronously moved downward, at this time, the two connecting rods are deflected, the included angle between the two connecting rods and the bottom plate is reduced, the two guide rods are relatively close to each other under the guidance of the lateral guide rail, the front mold moves towards the rear mold, the mold is closed, and the hollow parison formed by extrusion is cut off at this time;

[0019] When the bottom plate moves downward, the included angle between the two connecting rods and the bottom plate is increased, the two guide rods are relatively far away from each other, the front mold moves away from the rear mold, and the mold is opened at this time, the hollow parison between the front mold and the rear mold falls at this time, and when the bottom plate moves upward, the supporting plate moves upward synchronously at this time, the supporting plate can support the falling hollow parison at this time;

[0020] After supporting, the guide wheel can be opened to drive the hollow parison to move to the right side until it enters the inside of the mold assembly in the middle, at this time, the bottom plate continues to move downward, the mold closing operation is continued, and the hollow parison is closed between the front mold and the rear mold in the middle, waiting for the blow molding process.

[0021] By utilizing the heat generated when the plastic is melted, and by absorbing the heat through air, high-pressure air is converted into power to realize the reciprocating displacement of the bottom plate, and the mold assembly is closed and opened synchronously, and the automatic conveying of the guide wheel is matched, so that the automatic cutting and automatic conveying of the hollow parison to the blow molding place are realized, and the mold closing is automatically completed. The whole process is automatically completed, and manual control of the parison in each process is not required, the operation process is simplified, and the processing efficiency is improved.

[0022] As a further technical scheme of the present application, the gas conveying assembly comprises a gas storage pipe, a piston rod movably sleeved in the inside of the gas storage pipe, a piston plate fixedly connected to the top end of the piston rod, and the top end of the piston plate penetrates through the top end of the gas storage pipe and is connected with the bottom end of the movable seat.

[0023] As a further technical scheme of the present application, the gas storage pipe is fixedly connected with an air inlet valve at a rear position near the bottom end, and symmetrically installed with air outlet valves at a front position near the bottom end. The air inlet valve is fixedly connected with the other end of the second hot air pipe, and the other end of the air outlet valve is connected with the gas conveying pipe. The air inlet valve and the air outlet valve are both internally installed with a one-way valve, and the directions of the valves are inwardly open and outwardly closed, and outwardly open and inwardly closed, respectively.

[0024] When the bottom plate moves up, i.e. demolding, since the movable seat moves up at this time, it can drive the piston plate to move up, at this time, the piston rod moves up synchronously, and a negative pressure is generated inside the gas storage pipe, at this time, hot air is sucked into the inside of the gas storage pipe through the air inlet valve, and when the mold is closed, the movable seat moves down, and the piston rod moves down synchronously, i.e. high-temperature and high-pressure air is led out through the air outlet valve, and is conveyed through the gas conveying pipe to enter the inside of the three-way valve, and is led out through the hot air conveying head. Since the mold closing process of the hollow parison is being carried out at this time, the high-temperature air can be blown into the inside of the hollow parison, and the mold cavity after the mold closing can complete the blow molding process of the serum bottle. After the blow molding is completed, the bottom plate continues to move down, and the formed serum bottle completes the demolding and moves down.

[0025] The heat generated when the plastic is melted is reused, and the upward and downward displacement of the bottom plate during the mold closing and demolding is utilized to realize the suction and discharge of hot air, so that the hot air can be discharged and act on the inside of the parison when the mold of the hollow parison is closed. The whole process is automatically completed, and there is no need to set a heat source for blow molding, only the heat source for melting is needed to complete the whole blow molding process, which effectively reduces the energy consumption and production cost.

[0026] When the formed serum bottle is lowered, the guide wheel can continue to be opened to convey the formed serum bottle into the inside of the mold assembly on the right side. When multiple mold assemblies are closed, the hot air can be discharged through the cooling air conveying head after being cooled by the cooling cavity, and enters the inside of the mold assembly on the rightmost side to cool the formed serum bottle and accelerate the molding process thereof;

[0027] After the cooling is completed, the demolding process is repeated to demold the cooled serum bottle, and the whole blow molding process is completed through the transmission of the guide wheel. When the cooling and molding are carried out, the mold assembly on the left side can still close the hollow parison, and the mold assembly in the middle can blow mold and form the serum bottle. Through the repeated process described above, the automatic continuous production process can be completed.

[0028] The automatic cooling process of the serum bottle is completed by cooling the hot air and reapplying it to the closed serum bottle. The mold closing and demolding process and the automatic transmission of the guide wheel are coordinated, and the mold closing and blowing molding of the hollow parison and the cooling molding of the serum bottle are simultaneously performed. The entire process is automatically and continuously completed without manual intervention, has a high degree of automation, can realize continuous and automatic production of the serum bottle, and further improves the production efficiency.

[0029] A working method of a serum bottle production blow molding machine operating continuously, comprising the following steps:

[0030] S1: Before blowing, plastic particles can be injected into the inside of the feeding tank, and the motor and the electric heating box are turned on. At this time, the plastic particles can enter the inside of the extrusion cavity, and the electric heating box can quickly heat the extrusion cavity. The plastic particles are melted and transmitted to the electric heating die head by the extrusion of the screw and high temperature, and are discharged from the bottom end of the electric heating die head to form a hollow parison;

[0031] S2: At the same time, the air blower can be turned on to input air into the inside of the first hot air pipe, and the hot air is discharged from the first hot air pipe to the inside of the power tank. At this time, the impeller rotates and drives the main shaft to rotate, and drives the first linkage rod to swing. At this time, the second linkage rod swings synchronously, and exerts an upward pulling force and a downward pushing force on the movable seat. At this time, the movable seat can be driven to reciprocatingly displace upward and downward, and synchronously drive the linkage frame to reciprocatingly displace upward and downward;

[0032] S3: When the linkage frame displaces downward, the bottom plate moves downward, and drives the support plate to move downward. At this time, the two connecting rods deflect, and drive the two guide rods to relatively approach. At this time, the front mold and the rear mold relatively approach, and the mold closing is completed. At this time, the three mold assemblies can respectively perform the mold closing and blowing molding and cooling molding of the hollow parison. When the bottom plate displaces upward, the support plate moves upward, and the front mold and the rear mold relatively move away, and the demolding is completed. At this time, the corresponding hollow parison falls onto the support plate, and the hollow parison can be transmitted to the inside of the middle mold assembly by turning on the guide wheel;

[0033] S4: At this time, the above process can be repeated to fix the hollow parison in the middle mold assembly. When the bottom plate moves upward to demold, the piston rod moves upward. At this time, the high-pressure hot air in the gas storage pipe can be sucked into the inside of the gas storage pipe. When the mold closing is performed, the bottom plate moves downward, the piston rod moves downward, and the high-pressure hot air in the gas storage pipe is discharged. At this time, the hot air is discharged into the three-way valve through the gas conveying pipe and the hot air conveying head. At this time, the middle mold assembly is just in the mold closing process, and the discharged hot air is just in the blowing molding process of the inside of the hollow parison;

[0034] S5: after the blow molding is completed, the above process is repeated, at this time the blow molded serum bottle can enter the inside of the rightmost mold assembly, and the mold is closed, at this time the hot air can be guided out through the cooling air delivery head after being cooled by the cooling cavity, and acts on the inside of the molded serum bottle, and the cooling is completed, after the cooling is completed, the demolding process is repeated, the serum bottle is lowered below the rightmost mold assembly, and the guiding wheel transmission is completed to guide out, and the continuous production process can be completed by repeating the above process.

[0035] The beneficial effects of the present application are as follows:

[0036] 1、The present application utilizes the heat generated when the plastic is melted, and the high-pressure air is converted into power after the heat is absorbed by the air to realize the up-down reciprocating displacement of the bottom plate, and the mold assembly is closed and demolded synchronously, and the automatic transmission of the guiding wheel is matched, so that the automatic cutting and automatic transmission of the hollow parison to the blow molding place are realized, and the mold is closed automatically, the whole process is automatically completed, and the parison is transported in each process without manual control, the operation process is simplified, and the processing efficiency is improved.

[0037] 2、The present application reutilizes the heat generated when the plastic is melted, and utilizes the up-down displacement of the bottom plate in the mold closing and demolding process to realize the suction and guiding of the hot air, so that the hot air can be guided out and act on the inside of the parison when the mold is closed, the whole process is automatically completed, and the heat source for blow molding is not needed to be set, and the whole blow molding process can be completed only by using the heat source for melting, thereby effectively reducing the energy consumption and production cost.

[0038] 3、The present application reutilizes the hot air after being cooled to act on the serum bottle after being molded, so that the automatic cooling process of the serum bottle is completed, and the mold closing and demolding process and the automatic transmission of the guiding wheel are matched, so that the mold closing and molding of the hollow parison and the blow molding and cooling molding of the serum bottle can be simultaneously performed, the whole process is automatically and continuously completed, manual intervention is not needed, the automation degree is high, the continuous automatic production of the serum bottle can be realized, and the production efficiency is further improved. BRIEF DESCRIPTION OF DRAWINGS

[0039] Figure 1 It is a schematic view of the overall structure of the present application;

[0040] Figure 2 It is a separate schematic view of the plastic pretreatment assembly structure of the present application;

[0041] Figure 3 It is a partial structure schematic view of the plastic pretreatment assembly structure of the present application;

[0042] Figure 4 It is a cross-sectional schematic view of the internal structure of the plastic pretreatment assembly of the present application;

[0043] Figure 5 Figure 3 is a schematic diagram of the exploded view of the side guide rail and the mold closing assembly structure of the present application;

[0044] Figure 6 Figure 4 is a schematic diagram of the assembled view of the bottom plate and the support plate structure of the present application;

[0045] Figure 7 Figure 5 is a schematic diagram of the sectional view of the internal structure of the mold closing assembly of the present application;

[0046] Figure 8 Figure 6 is a schematic diagram of the assembled view of the gas delivery pipe and the power assembly and the gas delivery assembly structure of the present application;

[0047] Figure 9 Figure 7 is a schematic diagram of the sectional view of the power assembly structure of the present application;

[0048] Figure 10 Figure 8 is a schematic diagram of the sectional view of the gas delivery assembly structure of the present application.

[0049] In the figure: 1, frame; 2, side guide rail; 3, plastic pretreatment assembly; 301, extrusion cavity; 302, screw; 303, mounting seat; 304, motor; 305, feeding tank; 306, electric heating die head; 307, electric heating box; 308, fan; 309, first hot gas pipe; 4, bottom plate; 5, extension rod; 6, support plate; 7, guide wheel; 8, mold assembly; 801, front mold; 802, rear mold; 803, guide rod; 804, first fixing seat; 805, second fixing seat; 806, connecting rod; 9, gas delivery pipe; 10, three-way valve; 11, hot air delivery head; 12, cooling cavity; 13, cold air delivery head; 14, power assembly; 141, power tank; 142, second hot gas pipe; 143, main shaft; 144, impeller; 145, first linkage rod; 146, second linkage rod; 147, movable seat; 148, linkage frame; 15, gas delivery assembly; 151, gas storage pipe; 152, piston rod; 153, piston plate; 154, air inlet valve; 155, air outlet valve. DETAILED DESCRIPTION

[0050] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0051] As Figures 1 to 10As shown, in the embodiment of the application, a continuous operation serum bottle production bottle blowing machine, including rack 1, the top of rack 1 is fixedly installed with lateral guide rail 2 at equal distance, the number of lateral guide rail 2 is three, the top of three lateral guide rail 2 is movably clamped with mold assembly 8, the upper side of left mold assembly 8 is provided with plastic pretreatment assembly 3, the upper side of middle mold assembly 8 is provided with hot air delivery head 11, the upper side of right mold assembly 8 is provided with cold air delivery head 13, the bottom of plastic pretreatment assembly 3 is fixedly communicated with power assembly 14, the bottom of power assembly 14 is installed with gas delivery assembly 15, the right end of gas delivery assembly 15 is fixedly communicated with gas delivery pipe 9, the end of gas delivery pipe 9 away from gas delivery assembly 15 is fixedly communicated with three-way valve 10 located behind hot air delivery head 11, the right end of three-way valve 10 is fixedly communicated with cooling cavity 12, the front end of the right side of cooling cavity 12 is communicated with the rear end of cold air delivery head 13, the bottom of lateral guide rail 2 is provided with bottom plate 4, the top of bottom plate 4 is fixedly installed with extension rod 5 at equal distance, the upper side of bottom plate 4 is provided with support plate 6 located below mold assembly 8, the bottom of support plate 6 is connected with the top of extension rod 5, the top of support plate 6 is movably installed with guide wheel 7 at equal distance, the inside of support plate 6 is built-in micro motor for controlling the rotation of guide wheel 7.

[0052] Before use, the device can be fixed on the flat ground through rack 1, at the same time, the bottom of plastic pretreatment assembly 3 is also installed with extension base for fixing the device, and the bottom of gas delivery assembly 15 is fixed between the ground, and the plastic particles corresponding to the material are prepared, and the power supply of the device is connected to complete the preparation before blow molding.

[0053] As shown in the drawings, Figure 1 and Figure 2 and Figure 3 and Figure 4 As shown, plastic pretreatment assembly 3 includes extrusion cavity 301, extrusion cavity 301 is fixedly communicated with feed tank 305 at the position close to the upper side of rear end, screw 302 is movably installed in the inside of extrusion cavity 301, mounting seat 303 is fixedly installed at the rear end of extrusion cavity 301, motor 304 is fixedly installed at one end of mounting seat 303, the output end of motor 304 is connected with the rear end of screw 302, electric heating die head 306 located at the front end of screw 302 is fixedly communicated with the front end of extrusion cavity 301, the inside of electric heating die head 306 is communicated with the inside of extrusion cavity 301, the bottom end of electric heating die head 306 is located directly above the top of left mold assembly 8, electric heating box 307 is fixedly sleeved on the outside of extrusion cavity 301, cavity is formed in the inside of electric heating box 307 and electric heating pipe is installed, fan 308 is fixedly installed at the top of electric heating box 307, the output end of fan 308 is communicated with the inside of electric heating box 307, first hot gas pipe 309 is fixedly communicated with the bottom end of electric heating box 307, first hot gas pipe 309 is communicated between power assembly 14.

[0054] Before the injection molding, the plastic particles can be put into the feeding tank 305, at this time the plastic particles enter the inside of the extrusion cavity 301, at this time the electric heating box 307 can be started to heat the extrusion cavity 301, at this time the plastic particles in the inside of the extrusion cavity 301 are melted, and the motor 304 is started, at this time the motor 304 can drive the screw 302 to rotate and extrude the plastic particles in the inside of the extrusion cavity 301, and the plastic in the molten state is transported to the electric heating die head 306, and is extruded into a hollow parison by the molding of the electric heating die head 306 and is discharged through the bottom end of the electric heating die head 306;

[0055] At the same time, the fan 308 can be started synchronously to transport the external air to the inside of the electric heating box 307, and the air absorbs the heat in the inside of the electric heating box 307 and is discharged through the first hot air pipe 309 until it is transported to the power assembly 14.

[0056] As shown in Figure 1 and Figure 8 and Figure 9 The power assembly 14 includes a power tank 141, the top end of the power tank 141 is connected with the bottom end of the first hot air pipe 309, the bottom end of the power tank 141 is fixedly connected with a second hot air pipe 142, the other end of the second hot air pipe 142 is connected with the gas conveying assembly 15, the middle part of the power tank 141 is movably connected with a main shaft 143, the outer side of the main shaft 143 is fixedly sleeved with an impeller 144 located in the inside of the power tank 141, the front and rear sides of the main shaft 143 penetrate through the front and rear sides of the power tank 141 and are fixedly sleeved with a first linkage rod 145, the end of the first linkage rod 145 away from the main shaft 143 is movably connected with a second linkage rod 146 through a rotating shaft, the power assembly 14 further includes a movable seat 147 located at the bottom end of the second linkage rod 146, the top end of the movable seat 147 is movably connected with the two second linkage rods 146, the bottom end of the movable seat 147 is connected with the gas conveying assembly 15, and can only move up and down under the limiting of the gas conveying assembly 15, the front side of the movable seat 147 is fixedly connected with a linkage frame 148, and the other end of the linkage frame 148 is connected with the rear end of the left side of the bottom plate 4.

[0057] The high-temperature and high-pressure air can enter the inside of the power tank 141 through the first hot air pipe 309, at this time the impeller 144 can be driven to rotate, at this time the main shaft 143 rotates, and the high-temperature and high-pressure air can be discharged through the second hot air pipe 142 and enter the inside of the gas conveying assembly 15;

[0058] When the main shaft 143 rotates, the first linkage rod 145 swings and drives the second linkage rod 146 to swing synchronously, and an upward pulling force or a downward pushing force is applied to the movable seat 147, so that the movable seat 147 is guided by the gas conveying assembly 15 to reciprocatingly displace upward and downward, and the linkage frame 148 is synchronously reciprocatingly displaced upward and downward.

[0059] As shown in Figure 1 and Figure 4 and Figure 7 The mold assembly 8 includes a front mold 801 and a rear mold 802 symmetrically arranged in front and back, and the front mold 801 and the rear mold 802 are combined to form a complete mold cavity. The bottom ends of the front mold 801 and the rear mold 802 are fixedly connected with guide rods 803, the bottom ends of the guide rods 803 are movably connected with the lateral guide rail 2, the guide rods 803 displace forward and backward relative to the lateral guide rail 2, the bottom ends of the guide rods 803 are fixedly connected with first fixed seats 804, the ends of the first fixed seats 804 away from the guide rods 803 are movably connected with connecting rods 806 through pivots, the ends of the connecting rods 806 away from the first fixed seats 804 are movably connected with second fixed seats 805 through pivots, the bottom ends of the second fixed seats 805 are connected with the top end of the bottom plate 4, and the two second fixed seats 805 are installed on the front and back sides of the top end of the bottom plate 4.

[0060] When the linkage frame 148 moves downward, the bottom plate 4 and the support plate 6 are synchronously driven to move downward, the two connecting rods 806 are deflected, the included angle between the two connecting rods 806 and the bottom plate 4 is reduced, the two guide rods 803 are relatively close to each other under the guidance of the lateral guide rail 2, the front mold 801 moves towards the rear mold 802, the mold is closed, and the hollow parison is cut off;

[0061] When the bottom plate 4 moves downward, the included angle between the two connecting rods 806 and the bottom plate 4 is increased, the two guide rods 803 are relatively far away from each other, the front mold 801 moves away from the rear mold 802, the mold is opened, the hollow parison between the front mold 801 and the rear mold 802 falls off, and when the bottom plate 4 moves upward, the support plate 6 moves upward synchronously, and the support plate 6 supports the falling hollow parison.

[0062] After supporting, the guide wheel 7 is opened to drive the hollow parison to displace to the right side until entering the inside of the mold assembly 8 in the middle, the bottom plate 4 is continuously controlled to move downward, the mold closing operation is continuously completed, the hollow parison is closed between the front mold 801 and the rear mold 802 in the middle, and the blow molding process is waited.

[0063] By using the heat when the plastic melts, and by air absorbing heat, high pressure air is converted into power to realize the up and down reciprocating displacement of the bottom plate 4, and the mold assembly 8 is synchronized to realize the mold closing and demolding, and the automatic transmission of the guide wheel 7, so that the automatic cutting and automatic transmission of the hollow parison to the blow molding place can be realized, and the mold closing is automatically completed, the whole process is automatically completed, and the parison is not manually controlled in each process, the operation process is simplified, and the processing efficiency is improved.

[0064] As shown in Figure 1 and Figure 8 and Figure 10 The gas delivery assembly 15 includes a gas storage pipe 151, the inside of the gas storage pipe 151 movably sleeved with a piston rod 152, the top end of the piston rod 152 fixedly connected with a piston plate 153, the top end of the piston plate 153 penetrating the top end of the gas storage pipe 151 and connected with the bottom end of the movable seat 147, the rear side of the bottom end of the gas storage pipe 151 fixedly communicated with an air inlet valve 154, the front side of the bottom end of the gas storage pipe 151 symmetrically installed with an air outlet valve 155, the other end of the air inlet valve 154 fixedly communicated with the other end of the second hot air pipe 142, and the other end of the air outlet valve 155 communicated with the gas delivery pipe 9, and a one-way valve is installed in the inside of the air inlet valve 154 and the air outlet valve 155, and the directions of the valves are inwardly communicated and outwardly cut off respectively and outwardly communicated and inwardly cut off respectively.

[0065] When the bottom plate 4 moves up, i.e. demolding, the movable seat 147 is displaced upward, which drives the piston plate 153 to move upward, at this time, the piston rod 152 is synchronously moved upward, and a negative pressure is generated in the inside of the gas storage pipe 151, at this time, hot air is sucked into the inside of the gas storage pipe 151 through the air inlet valve 154, and when the mold is closed, the movable seat 147 is moved downward, the piston rod 152 is synchronously moved downward, and high temperature and high pressure air is guided out through the air outlet valve 155, and is delivered into the inside of the three-way valve 10 through the gas delivery pipe 9, and is guided out through the hot air delivery head 11, at this time, the hot air is blown into the inside of the hollow parison, and the blow molding process of the serum bottle is completed, after the blow molding is completed, the bottom plate 4 continues to move downward, and the formed serum bottle is demolded and moved downward.

[0066] By reusing the heat when the plastic is melted, and by using the up and down displacement of the bottom plate 4 during the mold closing and demolding, the hot air is sucked and guided out, so that the hot air can be guided out and act on the inside of the parison when the mold is closed, the whole process is automatically completed, and a heat source for blow molding is not needed, only the heat source for melting is needed to complete the whole blow molding process, which effectively reduces the energy consumption and production cost.

[0067] When the shaped serum bottle is lowered, the guide wheel 7 can continue to be opened to transport the shaped serum bottle to the inside of the right mold assembly 8. When the multiple mold assemblies 8 are closed, hot air can pass through the cooling cavity 12 and be discharged through the cold air delivery head 13, and enter the inside of the rightmost mold assembly 8 to cool the shaped serum bottle and speed up the molding process;

[0068] After cooling is completed, the demolding process is continued to be repeated, that is, the cooled serum bottle is demolded and transported through the guide wheel 7 to complete the entire blow molding process. At the same time, the left mold assembly 8 can still perform the closing of the hollow parison, and the middle mold assembly 8 can perform the blow molding of the serum bottle. Through the above process, the automatic continuous production process can be completed.

[0069] Through the cooling of the hot air and the reapplication to the closed serum bottle, the automatic cooling process of the serum bottle can be completed. At the same time, the entire closing and demolding process, as well as the automatic transmission of the guide wheel 7, can be performed simultaneously. The closing and molding of the hollow parison, the blow molding of the serum bottle, and the cooling molding of the serum bottle can be performed simultaneously. The entire process is automatically continuous and does not require manual intervention. The degree of automation is high, and the continuous automatic production of the serum bottle can be realized, further improving the production efficiency.

[0070] A working method of a continuous serum bottle production blow molding machine, comprising the following steps:

[0071] S1: Before blow molding, the plastic particles can be injected into the inside of the feeding tank 305, and the motor 304 and the electric heating box 307 are turned on. At this time, the plastic particles can enter the inside of the extrusion cavity 301, and the electric heating box 307 can quickly heat the extrusion cavity 301. Through the extrusion of the screw rod 302 and the high temperature, the plastic particles are melted and transmitted to the electric heating die head 306, and the hollow parison is formed through the bottom end of the electric heating die head 306;

[0072] S2: At the same time, the air blower 308 can be turned on to input air into the inside of the first hot air pipe 309, and the hot air can be guided out of the first hot air pipe 309 to the inside of the power tank 141. At this time, the impeller 144 rotates and drives the main shaft 143 to rotate, and drives the first linkage rod 145 to swing. At this time, the second linkage rod 146 swings synchronously, and applies upward pulling force and downward pushing force to the movable seat 147. At this time, the movable seat 147 can be reciprocatingly displaced upward and downward, and the linkage frame 148 can be reciprocatingly displaced upward and downward synchronously;

[0073] S3: When the linkage frame 148 is displaced downward, at this time the bottom plate 4 is lowered, and the support plate 6 is lowered, at this time the two connecting rods 806 are deflected, and the two guide rods 803 are relatively close, at this time the front mold 801 and the rear mold 802 are relatively close, the mold closing is completed, at this time the three mold assemblies 8 can be hollowed out respectively The mold closing and blow molding and cooling of the mold assembly and the mold assembly are completed, and when the bottom plate 4 is displaced upward, at this time the support plate 6 is displaced upward, and the front mold 801 and the rear mold 802 are relatively far away, the demolding is completed, at this time the corresponding hollow type blank is dropped onto the support plate 6, and the hollow type blank can be transmitted to the inside of the middle mold assembly 8 by opening the guide wheel 7;

[0074] S4: At this time, the above process can be repeated to fix the hollow type blank inside the middle mold assembly 8, and when the bottom plate 4 is displaced upward, that is, demolding, at this time the piston rod 152 is displaced upward, at this time the high-pressure hot air in the gas storage pipe 151 is sucked into the inside of the gas storage pipe 151, and when the mold is closed, that is, the bottom plate 4 is displaced downward, at this time the piston rod 152 is displaced downward, and the high-pressure hot air in the gas storage pipe 151 is discharged, at this time the hot air is discharged into the three-way valve 10 through the gas discharge pipe 9, and is discharged through the hot air delivery head 11, at this time the middle mold assembly 8 is just in the process of closing, and the discharged hot air is just in the process of blow molding the inside of the hollow type blank;

[0075] S5: After blow molding, repeat the above process, at this time the blow molded serum bottle can enter the inside of the rightmost mold assembly 8, and the mold closing is completed, at this time the hot air can be discharged through the cooling cavity 12 and the cold air delivery head 13, and acts on the inside of the molded serum bottle, and the cooling is completed, after the cooling is completed, the demolding process is repeated, the serum bottle is displaced to the lower side of the rightmost mold assembly 8, and is discharged through the transmission of the guide wheel 7, and the continuous production process is completed through the repeated process.

[0076] Although the embodiments of the present application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the present application, the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A blow-molder for the continuous production of serum bottles, comprising a frame (1), characterized in that: The top end of the rack (1) is fixedly installed with lateral guide rails (2) at equal intervals, the number of the lateral guide rails (2) is three in total, the top end of each of the three lateral guide rails (2) is movably clamped with a mold assembly (8), the upper side of the mold assembly (8) on the left side is provided with a plastic pretreatment assembly (3), the upper side of the mold assembly (8) in the middle is provided with a hot air delivery head (11), the upper side of the mold assembly (8) on the right side is provided with a cold air delivery head (13), the bottom end of the plastic pretreatment assembly (3) is fixedly communicated with a power assembly (14), the bottom end of the power assembly (14) is installed with a gas delivery assembly (15), the right end of the gas delivery assembly (15) is fixedly communicated with a gas delivery pipe (9), the end of the gas delivery pipe (9) away from the gas delivery assembly (15) is fixedly communicated with a three-way valve (10) behind the hot air delivery head (11), the right end of the three-way valve (10) is fixedly communicated with a cooling cavity (12), the front end of the right side of the cooling cavity (12) is communicated with the rear end of the cold air delivery head (13), the bottom of the lateral guide rail (2) is provided with a bottom plate (4), the top end of the bottom plate (4) is fixedly installed with an extension rod (5) at equal intervals, the upper side of the bottom plate (4) is provided with a supporting plate (6) below the mold assembly (8), the bottom end of the supporting plate (6) is connected with the top end of the extension rod (5), the top end of the supporting plate (6) is movably installed with a guide wheel (7) at equal intervals, and a micro motor is built in the inside of the supporting plate (6) for controlling the rotation of the guide wheel (7); The power assembly (14) comprises a power tank (141), the top end of the power tank (141) is communicated with the bottom end of the first hot gas pipe (309), the bottom end of the power tank (141) is fixedly communicated with the second hot gas pipe (142), the other end of the second hot gas pipe (142) is communicated with the gas delivery assembly (15), and the middle part of the power tank (141) is movably connected with a main shaft (143); the outer side of the main shaft (143) is fixedly sleeved with an impeller (144) in the inside of the power tank (141); The front and rear sides of the main shaft (143) penetrate through the front and rear sides of the power tank (141) and are fixedly sleeved with a first linkage rod (145), one end of the first linkage rod (145) away from the main shaft (143) is movably connected with a second linkage rod (146) through a rotating shaft, the power assembly (14) further comprises a movable seat (147) at the bottom end of the second linkage rod (146), the front and rear sides of the top end of the movable seat (147) are movably connected with two second linkage rods (146), the middle part of the bottom end of the movable seat (147) is connected with the gas delivery assembly (15), and only can be displaced up and down under the limiting of the gas delivery assembly (15), the front side of the movable seat (147) is fixedly connected with a linkage frame (148), and the other end of the linkage frame (148) is connected with the rear end of the left side of the bottom plate (4). The mold assembly (8) comprises two symmetrical front mold (801) and rear mold (802), the front mold (801) and rear mold (802) are combined to form a complete model cavity, the bottom end of the front mold (801) and rear mold (802) is fixedly connected with guide rod (803), the bottom end of the guide rod (803) is movably connected with the lateral guide rail (2), the guide rod (803) is displaced before and after the lateral guide rail (2); The bottom end of the guide rod (803) is fixedly connected with the first fixed seat (804), the end of the first fixed seat (804) away from the guide rod (803) is movably connected with the connecting rod (806) through the pivot, the end of the connecting rod (806) away from the first fixed seat (804) is movably connected with the second fixed seat (805) through the pivot, the bottom end of the second fixed seat (805) is connected with the top end of the bottom plate (4), and the two second fixed seats (805) are installed on the front and rear sides of the top end of the bottom plate (4).

2. A continuous running serum bottle producing bottle blowing machine according to claim 1, characterized in that: The plastic pretreatment assembly (3) comprises an extrusion cavity (301), a feed tank (305) is fixedly connected to the upper position close to the rear end of the extrusion cavity (301), a screw rod (302) is movably installed in the extrusion cavity (301), a mounting seat (303) is fixedly installed at the rear end of the extrusion cavity (301), a motor (304) is fixedly installed at one end of the mounting seat (303), the output end of the motor (304) is connected with the rear end of the screw rod (302), and a heating die head (306) is fixedly connected to the front end of the screw rod (302) and located in the extrusion cavity (301). The inside of the heating die head (306) is in communication with the inside of the extrusion cavity (301), and the bottom end of the heating die head (306) is located directly above the top end of the left mold assembly (8).

3. A continuous running serum bottle producing bottle blowing machine according to claim 2, characterized in that: The outer side of the extrusion cavity (301) is fixedly sleeved with an electric heating box (307), a cavity is formed in the electric heating box (307) and an electric heating pipe is installed in the cavity, a fan (308) is fixedly installed at the top end of the electric heating box (307), the output end of the fan (308) is in communication with the inside of the electric heating box (307), and a first hot gas pipe (309) is fixedly connected to the bottom end of the electric heating box (307). The first hot gas pipe (309) is in communication with the power assembly (14).

4. A continuous running serum bottle producing bottle blowing machine according to claim 3, characterized in that: The gas conveying assembly (15) comprises a gas storage pipe (151), a piston rod (152) is movably sleeved in the gas storage pipe (151), a piston plate (153) is fixedly connected to the top end of the piston rod (152), and the top end of the piston plate (153) penetrates the top end of the gas storage pipe (151) and is connected with the bottom end of the movable seat (147).

5. A continuous running serum bottle producing bottle blowing machine according to claim 4, characterized in that: The gas storage pipe (151) is fixedly communicated with an air inlet valve (154) at the rear side position close to the bottom end, symmetrically installed with air outlet valves (155) at the front side position close to the bottom end, and the air inlet valve (154) is fixedly communicated with the other end of the second hot air pipe (142), and the other end of the air outlet valve (155) is communicated with the gas conveying pipe (9), and the air inlet valve (154) and the air outlet valve (155) are both internally installed with one-way valves, and the directions of the valves are inwardly open and outwardly closed and outwardly open and inwardly closed, respectively.

6. A method of operating a continuous running serum bottle producing bottle blowing machine according to claim 5, characterized in that: The method comprises the following steps: S1: Before blow molding, plastic particles can be injected into the inside of the feeding tank (305), and the motor (304) and the electric heating box (307) are turned on, at this time, the plastic particles can enter the inside of the extrusion cavity (301), and the electric heating box (307) can quickly heat the extrusion cavity (301), and the plastic particles are melted and transmitted to the electric heating die head (306) through the extrusion of the screw rod (302) and high temperature, and the hollow parison is formed by the bottom end of the electric heating die head (306); S2: At the same time, the air fan (308) can be turned on to input air into the inside of the first hot air pipe (309), and hot air is discharged to the inside of the power tank (141) through the first hot air pipe (309), at this time, the impeller (144) rotates and drives the main shaft (143) to rotate, and drives the first linkage rod (145) to swing, at this time, the second linkage rod (146) swings synchronously, and the upward pulling force and the downward pushing force are applied to the movable seat (147), at this time, the movable seat (147) can be driven to reciprocatingly displace upward and downward, and the linkage frame (148) is synchronously driven to reciprocatingly displace upward and downward; S3: When the linkage frame (148) is displaced downward, the bottom plate (4) is displaced downward, and the supporting plate (6) is displaced downward, at this time, the two connecting rods (806) are deflected, and the two guide rods (803) are relatively close, at this time, the front mold (801) and the rear mold (802) are relatively close, and the mold closing is completed, at this time, the three mold assemblies (8) can be respectively subjected to the mold closing and blow molding and cooling of the hollow parison, and when the bottom plate (4) is displaced upward, the supporting plate (6) is displaced upward, and the front mold (801) and the rear mold (802) are relatively far away, and the mold opening is completed, at this time, the corresponding hollow parison falls onto the supporting plate (6), and the hollow parison can be transmitted to the inside of the middle mold assembly (8) by opening the guide wheel (7). S4: At this time, the above process can be repeated to fix the hollow parison inside the middle mold assembly (8), and when the bottom plate (4) moves up, that is, when the mold is demolded, the piston rod (152) can be moved up at this time, and the high-pressure hot air can be sucked into the gas storage pipe (151) through the gas storage pipe (151). When the mold is closed, that is, when the bottom plate (4) moves down, the piston rod (152) moves down with it, and the high-pressure hot air in the gas storage pipe (151) is discharged. At this time, it can be discharged into the three-way valve (10) through the gas delivery pipe (9), and discharged through the hot air delivery head (11). At this time, the middle mold assembly (8) is just in the process of closing the mold, and the discharged hot air is just in the process of blow molding the inside of the hollow parison; S5: After the blow molding is completed, the above process is repeated, and the blow molded serum bottle can enter the rightmost mold assembly (8) and complete the mold closing. At this time, the hot air can be cooled through the cooling cavity (12) and discharged through the cold air delivery head (13), and acts on the inside of the molded serum bottle to complete the cooling. After cooling, the demolding process is repeated, the serum bottle moves down to the bottom of the rightmost mold assembly (8), and is transmitted through the guide wheel (7) to complete the discharge process. Through the above process, the continuous production process can be completed.

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