Automatic zipper aligning and hot melting device for medicinal packaging bag production line

Abstract

The invention relates to the technical field of medicinal packaging bag processing, and discloses an automatic zipper aligning and hot melting device for a medicinal packaging bag production line, the automatic zipper aligning and hot melting device comprises a rack, an adjusting assembly and a guide assembly are arranged on the rack, the adjusting assembly comprises a gear, and the side surface of the gear is in meshed connection with a rack; a handle is fixedly connected to the inner surface of the gear through a first rotating shaft, a fixing frame is fixedly connected to the side surface of the first rotating shaft through a fourth bearing and a moving block, a guide block is fixedly connected to the rear surface of the fixing frame through a first connecting rod, and a zipper guide channel is formed in the guide block. Synchronous adjustment of the use positions of the guide block and the heating piece can be achieved, step-by-step independent operation is not needed, volatile peculiar smell gas is prevented from diffusing to the surrounding environment of an operation room during zipper hot melting, efficient guide collection of the volatile peculiar smell gas can be achieved, and retention or local accumulation of the gas in an isolation space is avoided.

Description

Technical Field

[0001] This invention relates to the field of pharmaceutical packaging bag processing technology, and in particular to an automatic zipper alignment and hot-melt device for a pharmaceutical packaging bag production line. Background Technology

[0002] Pharmaceutical packaging bags serve as the carriers for storing and transporting medicines. The sealing performance of these bags directly affects the stability, sterility, and safety of the medicines. Zipper structures are widely used in pharmaceutical packaging bags for solid pharmaceutical preparations due to their advantages of repeated sealing and easy opening. During the production of pharmaceutical packaging bags, the installation precision of the zipper determines the sealing effect. Different specifications of pharmaceutical packaging bags, such as those corresponding to different dosage forms like capsules, tablets, and granules, require specific zipper installation positions to ensure a tight zipper seal and even stress distribution after the bag is sealed, avoiding risks such as moisture absorption and contamination of the medicine due to zipper misalignment.

[0003] In existing pharmaceutical packaging bag production lines, when heat-sealing zippers for packaging bags of different specifications, the positions of the zipper guide block and the zipper heating element need to be adjusted separately. During operation, the position of the zipper guide block on the frame is first manually adjusted according to the specifications of the packaging bags being produced, ensuring that the zipper maintains a stable posture and a preset position reference before entering the heat-sealing station. Then, the position of the zipper heating element is adjusted according to the zipper heat-sealing position, so that the heating area of ​​the heating element can accurately cover the bonding surface between the zipper and the bag body. When the zipper and the bag body substrate are simultaneously conveyed to the heat-sealing station, the heating element rapidly heats up to heat-seale the bonding area, causing the zipper and the bag body substrate to bond together, thus completing the fixed installation of the zipper. Throughout the process, the guide channel on the guide block continuously guides and limits the zipper to prevent the zipper from shifting during the heat-sealing process.

[0004] Currently, when heat-sealing different positions of zippers on pharmaceutical packaging bags of different specifications, the position adjustment of the zipper guide block and the zipper heating element needs to be carried out step by step independently. The reference deviation of the two independent adjustments will cause inaccurate zipper positioning, which will lead to problems such as poor zipper engagement and bag sealing failure after heat-sealing. At the same time, the zipper heat-sealing process will produce volatile odor gases due to the thermal decomposition of polymer materials. The volatile odor gases will directly diffuse in the operating room, and long-term exposure will affect the respiratory health of the operators. Summary of the Invention

[0005] The purpose of this invention is to provide an automatic zipper alignment and hot-melt device for a pharmaceutical packaging bag production line. This solves the problem that when hot-melting zippers at different positions on pharmaceutical packaging bags of different specifications, the position adjustment of the zipper guide block and the zipper heating element must be carried out step by step independently. The reference deviation caused by the two independent adjustments will lead to inaccurate zipper positioning, resulting in poor zipper engagement and bag sealing failure after hot-melt.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solution: It includes a frame, on which an adjustment component and a guide component are provided. The adjustment component includes a gear, a rack meshing with the side surface of the gear, a handle fixedly connected to the inner surface of the gear via a first rotating shaft, a fixed frame fixedly connected to the side surface of the first rotating shaft via a fourth bearing and a moving block, a guide block fixedly connected to the rear surface of the fixed frame via a first connecting rod, a zipper guide channel being provided inside the guide block, and a constant temperature heating element being provided on the fixed frame.

[0007] The side surface of the fixed frame is provided with an exhaust gas isolation component. The frame is fixedly connected to a fixed cover via a connecting plate. A movable cover is fixedly connected to the front surface of the fixed frame. A first groove is provided inside the fixed cover. A movable plate is slidably connected to the inner surface of the first groove. A baffle is fixedly connected to the rear surface of the fixed frame.

[0008] The guide assembly is used to guide the zipper and packaging bag. The guide assembly includes a second rotating shaft. A waste gas guiding and collecting assembly is provided on the side surface of the second rotating shaft. The waste gas guiding and collecting assembly includes a second bevel gear. A fan is fixedly connected to the inner surface of the second bevel gear through a fifth rotating shaft. A worm gear is fixedly connected to the side surface of the second rotating shaft. An exhaust pipe is fixedly connected to the rear surface of the fixed cover through a guide cover and a purification box.

[0009] Preferably, a second connecting rod is fixedly connected to the side surface of the frame via a fixing block, the upper end of the second connecting rod is fixedly connected to a rack via a sixth support plate, and the front surface of the movable plate is fixedly connected to a movable cover.

[0010] Preferably, a fixing rod is fixedly connected to the upper surface of the sixth support plate, and a second groove is formed on the inner surface of the fixing rod, and the inner surface of the second groove is slidably connected to the moving block.

[0011] Preferably, the side surface of the second bevel gear is meshed with the first bevel gear, the inner surface of the first bevel gear is fixedly connected to the worm through the fourth rotating shaft, and the side surface of the worm is meshed with the worm wheel.

[0012] Preferably, the upper surface of the frame is fixedly connected with a second support plate, a third support plate and a fourth support plate.

[0013] Preferably, the side surface of the second support plate is fixedly connected to the fifth rotating shaft via the first bearing, the side surface of the third support plate is fixedly connected to the fourth rotating shaft via the second bearing, and the side surface of the fourth support plate is fixedly connected to the second rotating shaft via the third bearing.

[0014] Preferably, a first support plate is fixedly connected to the side surface of the frame, and a first fixing plate and a second fixing plate are fixedly connected to the side surface of the first support plate.

[0015] Preferably, the interior of the second fixed plate is rotatably connected to a second guide roller via a third rotating shaft, the side surface of the second rotating shaft is rotatably connected to the first fixed plate, and the side surface of the second rotating shaft is fixedly connected to the first guide roller.

[0016] Preferably, a fifth support plate is fixedly connected to the rear surface of the frame, and the upper surface of the fifth support plate is fixedly connected to the purification box.

[0017] Preferably, a sealing block is provided inside the air guide shroud, and both the fan and the sealing block are located inside the air guide shroud. Support legs are provided below the frame, and a controller and an operating table are provided on the frame.

[0018] In summary, the present invention has at least one of the following beneficial technical effects:

[0019] 1. This invention, by setting up a frame, adjustment component, fixed frame, exhaust gas isolation component, first connecting rod, guide block, guide component, and exhaust gas diversion and collection component, allows the first rotating shaft to be driven by a handle during adjustment, which in turn drives the gear to rotate. The meshing transmission between the gear and rack causes the moving block to synchronously move the fixed frame, guide block, and constant temperature heating element, thus achieving synchronous adjustment of the position of the guide block and heating element. This eliminates the need for separate, independent operations, solves the problem of reference deviation caused by two adjustments, avoids the hidden dangers of poor interlocking and bag sealing failure after heat fusion caused by inaccurate zipper positioning, and improves the heat fusion processing quality and stability of pharmaceutical packaging bags.

[0020] 2. With the help of the exhaust gas isolation component, even if the position of the constant temperature heating element and the guide block is adjusted, the hot-melt area can be covered in the isolation space, preventing the volatile odor gas during the hot-melt of the zipper from spreading to the surrounding environment of the operating room, reducing the contact path between the odor gas and the operator, and thus protecting the respiratory health of the operator.

[0021] 3. The odorous gas generated by the hot melting of the zipper in this invention accumulates in a closed environment and is guided by the structure of the exhaust gas guide and collection component to form a directional airflow. The gas enters the purification box through the guide hood, realizing efficient guiding and collection of volatile odorous gas and avoiding gas stagnation or local accumulation in the isolated space.

[0022] 4. The exhaust gas guiding and collecting component of the present invention does not require an additional independent drive structure. Through the transmission cooperation of the second rotating shaft, worm gear, worm and the first bevel gear and the second bevel gear, the rotational power of the second rotating shaft is transmitted to the fan, so that the fan rotates to generate negative pressure, which provides a power source for exhaust gas guiding and collecting. No additional energy is required, which reduces the energy consumption and operating cost of the device while ensuring the exhaust gas collection effect. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0024] Figure 2 This is a schematic diagram of the purification box structure of the present invention;

[0025] Figure 3 This is a schematic diagram of the first support plate structure of the present invention;

[0026] Figure 4 This is a schematic diagram of the exhaust gas isolation component structure of the present invention;

[0027] Figure 5 This is a schematic diagram of the guiding component structure of the present invention;

[0028] Figure 6 This is a schematic diagram of the fourth rotating shaft structure of the present invention;

[0029] Figure 7 yes Figure 6 Enlarged view of point A in the middle;

[0030] Figure 8 yes Figure 6 Enlarged view of point B in the middle;

[0031] Figure 9 This is a schematic diagram of the fan structure of the present invention;

[0032] Figure 10 This is a schematic diagram of the fixing frame structure of the present invention.

[0033] The components include: 1. Frame; 2. Adjustment assembly; 201. Rack; 202. Gear; 203. First rotating shaft; 204. Handle; 205. Moving block; 3. Fixed frame; 4. Exhaust gas isolation assembly; 401. Fixed cover; 402. Moving cover; 403. First groove; 404. Moving plate; 405. Baffle; 5. First connecting rod; 6. Guide block; 7. Guide assembly; 701. First support plate; 702. Second rotating shaft; 703. First guide roller; 704. First fixed plate; 705. Second fixed plate; 706. Third rotating shaft; 707. Second guide roller; 8. Exhaust gas guiding and collecting assembly; 801. 802. Worm; 803. Fourth shaft; 804. First bevel gear; 805. Second bevel gear; 806. Fifth shaft; 807. Fan; 9. Draft shield; 10. Sealing block; 11. Second support plate; 12. First bearing; 13. Third support plate; 14. Second bearing; 15. Fourth support plate; 16. Third bearing; 17. Purification box; 18. Exhaust pipe; 19. Fifth support plate; 20. Fixing block; 21. Second connecting rod; 22. Sixth support plate; 23. Support leg; 24. Controller; 25. Constant temperature heating element; 26. Operating table; 27. Fixing rod; 28. Second groove. Detailed Implementation

[0034] The following is in conjunction with the appendix Figure 1 -Appendix Figure 10 The present invention will be further described in detail below.

[0035] This invention provides an automatic zipper alignment and hot-melt device for a pharmaceutical packaging bag production line, including a frame 1. The frame 1 is equipped with an adjustment component 2 and a guide component 7. The adjustment component 2 includes a gear 202. A rack 201 is meshed with the side surface of the gear 202. A handle 204 is fixedly connected to the inner surface of the gear 202 through a first rotating shaft 203. A fixing frame 3 is fixedly connected to the side surface of the first rotating shaft 203 through a fourth bearing and a moving block 205. A constant temperature heating element 25 is provided on the fixing frame 3.

[0036] Specifically, the first rotating shaft 203 is driven by the handle 204 to rotate the gear 202. The meshing transmission between the gear 202 and the rack 201 causes the moving block 205 to synchronously move the fixed frame 3, the guide block 6, and the constant temperature heating element 25. This achieves synchronous adjustment of the positions of the guide block 6 and the constant temperature heating element 25 without the need for separate operation. It solves the problem of reference deviation caused by two adjustments, avoids the hidden dangers of poor interlocking after heat fusion and bag sealing failure caused by inaccurate zipper positioning, and improves the heat fusion processing quality and stability of pharmaceutical packaging bags.

[0037] The rear surface of the fixing frame 3 is fixedly connected to the guide block 6 via the first connecting rod 5, and the guide block 6 is provided with a zipper guide channel inside.

[0038] Specifically, the guide block 6 is rigidly connected to the fixed frame 3 via the first connecting rod 5, ensuring that the guide block 6 and the constant temperature heating element 25 maintain completely synchronized displacement when the fixed frame 3 is moved and adjusted, thus ensuring that the relative position between the two always meets the processing requirements. The zipper guide channel is used to guide the conveyed zippers.

[0039] The side surface of the frame 1 is fixedly connected to the second connecting rod 21 by the fixing block 20. The upper end of the second connecting rod 21 is fixedly connected to the rack 201 by the sixth support plate 22. The front surface of the moving plate 404 is fixedly connected to the moving cover 402. The upper surface of the sixth support plate 22 is fixedly connected to the fixing rod 27. The inner surface of the fixing rod 27 is provided with the second groove 28. The inner surface of the second groove 28 is slidably connected to the moving block 205.

[0040] Specifically, the fixed block 20, the second connecting rod 21, and the sixth support plate 22 provide stable support and precise guidance for the operation of the adjustment assembly 2. The rack 201 is fixed to the frame 1 by the sixth support plate 22 and the second connecting rod 21, ensuring the stability of the gear 202 during meshing transmission and preventing displacement of the rack 201 from affecting the adjustment accuracy. The sliding engagement between the second groove 28 on the fixed rod 27 and the moving block 205 further improves the accuracy of synchronous adjustment and prevents the moving block 205 from shifting left or right.

[0041] The side surface of the fixed frame 3 is provided with an exhaust gas isolation component 4. The frame 1 is fixedly connected to a fixed cover 401 via a connecting plate. The front surface of the fixed frame 3 is fixedly connected to a movable cover 402. The inside of the fixed cover 401 is provided with a first groove 403. The inner surface of the first groove 403 is slidably connected to a movable plate 404. The rear surface of the fixed frame 3 is fixedly connected to a baffle 405.

[0042] Specifically, when adjusting the position of the constant temperature heating element 25 and the guide block 6, the movement of the fixed frame 3 will simultaneously drive the moving cover 402 and the baffle 405 to move. The moving plate 404 on the moving cover 402 slides in the first groove 403 of the fixed cover 401, while the baffle 405 blocks the opening of one side of the fixed cover 401, thus always keeping the hot-melt area within a relatively closed isolation space. The exhaust gas isolation component 4 is designed to prevent volatile odor gases from diffusing into the surrounding environment of the operating room during zipper hot-melt, reducing the contact path between odor gases and operators from the source and ensuring the respiratory health of operators. The front side of the moving cover 402 is fixedly connected to an air inlet pipe, which is equipped with a one-way valve. The one-way valve only allows outside air to enter the isolation space in one direction, balancing the air pressure in the isolation space, while preventing volatile odor gases in the isolation space from overflowing back through the air inlet pipe.

[0043] The guide assembly 7 is used to guide zippers and packaging bags. The guide assembly 7 includes a second rotating shaft 702. A first support plate 701 is fixedly connected to the side surface of the frame 1. A first fixing plate 704 and a second fixing plate 705 are fixedly connected to the side surface of the first support plate 701. A second guide roller 707 is rotatably connected to the inside of the second fixing plate 705 through a third rotating shaft 706. The side surface of the second rotating shaft 702 is rotatably connected to the first fixing plate 704. A first guide roller 703 is fixedly connected to the side surface of the second rotating shaft 702.

[0044] Specifically, the unwinding mechanism for the packaging bags and zippers adopts existing technology. This mechanism can achieve uniform unwinding according to the production line speed, ensuring the continuous conveying of the packaging bags and zippers. The specific structure and working principle of the unwinding mechanism are not detailed here. The guide component 7 guides the conveying of the packaging bags and zippers, allowing the upper and lower layers of packaging bags and zippers to smoothly pass between the first guide roller 703 and the second guide roller 707. Through the clamping and rotation of the first guide roller 703 and the second guide roller 707, precise conveying of the zippers and packaging bags is achieved, avoiding problems such as offset and wrinkles during conveying, providing a reliable guarantee for subsequent hot-melt positioning. Simultaneously, the first guide roller 703 is fixed on the second rotating shaft 702 and can rotate synchronously under the drive of the packaging bags and zippers. The second rotating shaft 702 can synchronously drive the exhaust gas guiding and collecting component 8.

[0045] The side surface of the second rotating shaft 702 is provided with an exhaust gas guiding and collecting assembly 8. The exhaust gas guiding and collecting assembly 8 includes a second bevel gear 805. The inner surface of the second bevel gear 805 is fixedly connected to a fan 807 via a fifth rotating shaft 806. The side surface of the second rotating shaft 702 is fixedly connected to a worm gear 801. The side surface of the second bevel gear 805 is meshed with a first bevel gear 804. The inner surface of the first bevel gear 804 is fixedly connected to a worm 802 via a fourth rotating shaft 803. The side surface of the worm 802 is meshed with the worm gear 801.

[0046] Specifically, after the odorous gas generated by the zipper heat sealing accumulates in the enclosed space, the rotational power of the second rotating shaft 702 is transmitted to the fan 807 through the transmission cooperation of the second rotating shaft 702, worm gear 801, worm 802, first bevel gear 804, and second bevel gear 805. This causes the fan 807 to rotate and generate negative pressure. The rotation of the second rotating shaft 702 provides the power source for the exhaust gas guidance and collection without consuming additional energy. This reduces the energy consumption and operating cost of the device while ensuring the exhaust gas collection effect. The negative pressure generated by the fan 807 can guide the gas to form a directional airflow, ensuring that the gas quickly enters the subsequent collection channel.

[0047] The rear surface of the fixed cover 401 is fixedly connected to the exhaust pipe 18 via the flow guide 9 and the purification box 17. The rear surface of the frame 1 is fixedly connected to the fifth support plate 19, and the upper surface of the fifth support plate 19 is fixedly connected to the purification box 17.

[0048] Specifically, the deflector 9 can precisely guide the volatile odor gases in the isolation space to the purification chamber 17, preventing the gases from stagnating or accumulating locally in the isolation space, thus achieving efficient guiding and collection of volatile odor gases. The purification chamber 17 ensures that the exhaust gas is effectively purified before being discharged from the operating room, further reducing the pollution of the exhaust gas to the environment and the potential impact on the health of the operators. The treated gas is discharged from the purification chamber 17 through the exhaust pipe 18. The purification chamber 17 is equipped with a pre-filter, an activated carbon adsorption layer, and a HEPA high-efficiency filter. The pre-filter, activated carbon adsorption layer, HEPA high-efficiency filter, and the filtration principle are all existing technologies. The pre-filter intercepts large particulate impurities in the exhaust gas, the activated carbon adsorption layer adsorbs odor molecules, and the HEPA high-efficiency filter filters fine pollutants, achieving multi-stage purification treatment of the exhaust gas.

[0049] The upper surface of the frame 1 is fixedly connected to a second support plate 11, a third support plate 13 and a fourth support plate 15. The side surface of the second support plate 11 is fixedly connected to a fifth rotating shaft 806 through a first bearing 12. The side surface of the third support plate 13 is fixedly connected to a fourth rotating shaft 803 through a second bearing 14. The side surface of the fourth support plate 15 is fixedly connected to a second rotating shaft 702 through a third bearing 16.

[0050] Specifically, the second support plate 11, the third support plate 13, and the fourth support plate 15 are used to support the fifth rotating shaft 806, the fourth rotating shaft 803, and the second rotating shaft 702, respectively, ensuring the stability of the transmission structure. The side surface of the second support plate 11 is fixedly connected to the fifth rotating shaft 806 through the first bearing 12. The first bearing 12 can reduce the frictional resistance when the fifth rotating shaft 806 rotates, ensuring the smooth rotation of the fan 807. The side surface of the third support plate 13 is fixedly connected to the fourth rotating shaft 803 through the second bearing 14, providing stable support for the fourth rotating shaft 803 and ensuring the meshing transmission accuracy of the worm gear 802 and the worm wheel 801. The side surface of the fourth support plate 15 is fixedly connected to the second rotating shaft 702 through the third bearing 16, further improving the rotational stability of the second rotating shaft 702 and providing reliable protection for the entire power transmission system.

[0051] The inside of the flow guide 9 is equipped with a sealing block 10. The fan 807 and the sealing block 10 are both located inside the flow guide 9. The bottom of the frame 1 is equipped with a support leg 23. The frame 1 is equipped with a controller 24 and an operating table 26.

[0052] Specifically, the guide shroud 9 serves as a channel for collecting exhaust gas. The sealing block 10 is made of silicone rubber composite material with strong temperature resistance and excellent sealing performance. It has an internal chamber adapted for the installation of transmission components. The first bevel gear 804 and the second bevel gear 805 are precisely fitted into the internal chamber of the sealing block 10, maintaining a stable meshing state. The chamber of the sealing block 10 provides a stable mounting support for the first bevel gear 804 and the second bevel gear 805, and effectively blocks the influence of exhaust gas on them, extending their service life.

[0053] The fan 807 adopts a centrifugal structure design. When the blades of the fan 807 rotate, they can generate a strong negative pressure adsorption force. The fan 807 and the sealing block 10 are together in the sealed space of the guide shroud 9, forming a transmission and guide structure. Four support feet 23 are symmetrically arranged below the frame 1. The support feet 23 adopt an adjustable structure, consisting of support columns and adjusting feet. The support columns have a threaded adjustment mechanism inside, which can flexibly adjust the height of the device according to the flatness of the operating room floor. The bottom of the adjusting feet is covered with anti-slip and wear-resistant rubber pads, which can not only enhance the stability of the device placement, but also reduce the vibration generated by the device during operation and transmit it to the ground. The controller 24 is equipped with a PLC control system. In this application, the constant temperature heating element 25 is electrically connected to the controller 24.

[0054] Working principle: When using this device, when heat-sealing the zippers of packaging bags of different specifications, it is necessary to adjust the appropriate position of the constant temperature heating element 25 and the guide block 6. By turning the handle 204, the first rotating shaft 203 and the gear 202 are driven to rotate. The gear 202 moves on the rack 201, which in turn moves the moving block 205 and the fixing frame 3. The movement of the fixing frame 3 drives the constant temperature heating element 25, the first connecting rod 5, and the guide block 6 to move, thereby synchronously adjusting the usage position of the constant temperature heating element 25 and the guide block 6.

[0055] When adjusting the position of the constant temperature heating element 25 and the guide block 6, the fixed frame 3 moves, causing the movable cover 402 and the baffle 405 to move. The movable plate 404 on the movable cover 402 slides in the first groove 403. At the same time, the baffle 405 blocks the opening of the fixed cover 401 on one side, forming a hot melt area isolation space. Even if the constant temperature heating element 25 and the guide block 6 are adjusted, a hot melt area isolation space can be formed to prevent volatile odor gases from spreading to the surrounding environment of the operating room when the zipper is hot melted.

[0056] During the operation of the pharmaceutical packaging bag production line, the upper and lower layers of packaging bags and zippers pass between the first guide roller 703 and the second guide roller 707. During the conveying process of the upper and lower layers of packaging bags and zippers, the second rotating shaft 702 and the first guide roller 703 rotate. The rotation of the first guide roller 703 drives the worm gear 801, worm 802, fourth rotating shaft 803, and first bevel gear 804 to rotate, which in turn drives the second bevel gear 805, fifth rotating shaft 806, and fan 807 to rotate. The volatile odor gas in the isolation space is guided and transported to the purification box 17 through the guide hood 9 and then discharged through the exhaust pipe 18.

Claims

1. An automatic zipper alignment and hot-melt device for a pharmaceutical packaging bag production line, comprising a frame (1), characterized in that, The frame (1) is provided with an adjustment component (2) and a guide component (7). The adjustment component (2) includes a gear (202). A rack (201) is meshed with the side surface of the gear (202). A handle (204) is fixedly connected to the inner surface of the gear (202) through a first rotating shaft (203). A fixed frame (3) is fixedly connected to the side surface of the first rotating shaft (203) through a fourth bearing and a moving block (205). A guide block (6) is fixedly connected to the rear surface of the fixed frame (3) through a first connecting rod (5). A zipper guide channel is provided inside the guide block (6). A constant temperature heating element (25) is provided on the fixed frame (3). The side surface of the fixed frame (3) is provided with an exhaust gas isolation component (4), the frame (1) is fixedly connected to a fixed cover (401) by a connecting plate, the front surface of the fixed frame (3) is fixedly connected to a movable cover (402), the inside of the fixed cover (401) is provided with a first groove (403), the inner surface of the first groove (403) is slidably connected to a movable plate (404), and the rear surface of the fixed frame (3) is fixedly connected to a baffle (405). The guide assembly (7) is used to guide the zipper and packaging bag. The guide assembly (7) includes a second rotating shaft (702). The side surface of the second rotating shaft (702) is provided with an exhaust gas guide and collection assembly (8). The exhaust gas guide and collection assembly (8) includes a second bevel gear (805). The inner surface of the second bevel gear (805) is fixedly connected to a fan (807) through a fifth rotating shaft (806). The side surface of the second rotating shaft (702) is fixedly connected to a worm gear (801). The rear surface of the fixed cover (401) is fixedly connected to an exhaust pipe (18) through a guide cover (9) and a purification box (17).

2. The automatic zipper alignment and hot-melt device for a pharmaceutical packaging bag production line according to claim 1, characterized in that, The side surface of the frame (1) is fixedly connected to a second connecting rod (21) by a fixing block (20). The upper end of the second connecting rod (21) is fixedly connected to a rack (201) by a sixth support plate (22). The front surface of the moving plate (404) is fixedly connected to the moving cover (402).

3. The automatic zipper alignment and hot-melt device for a pharmaceutical packaging bag production line according to claim 2, characterized in that, A fixing rod (27) is fixedly connected to the upper surface of the sixth support plate (22). A second groove (28) is provided on the inner surface of the fixing rod (27). The inner surface of the second groove (28) is slidably connected to the moving block (205).

4. The automatic zipper alignment and hot-melt device for a pharmaceutical packaging bag production line according to claim 1, characterized in that, The side surface of the second bevel gear (805) is meshed with the first bevel gear (804). The inner surface of the first bevel gear (804) is fixedly connected to the worm (802) through the fourth rotating shaft (803). The side surface of the worm (802) is meshed with the worm wheel (801).

5. The automatic zipper alignment and hot-melt device for a pharmaceutical packaging bag production line according to claim 1, characterized in that, The upper surface of the frame (1) is fixedly connected to a second support plate (11), a third support plate (13) and a fourth support plate (15).

6. The automatic zipper alignment and hot-melt device for a pharmaceutical packaging bag production line according to claim 5, characterized in that, The side surface of the second support plate (11) is fixedly connected to the fifth rotating shaft (806) through the first bearing (12), the side surface of the third support plate (13) is fixedly connected to the fourth rotating shaft (803) through the second bearing (14), and the side surface of the fourth support plate (15) is fixedly connected to the second rotating shaft (702) through the third bearing (16).

7. The automatic zipper alignment and hot-melt device for a pharmaceutical packaging bag production line according to claim 1, characterized in that, The side surface of the frame (1) is fixedly connected to a first support plate (701), and the side surface of the first support plate (701) is fixedly connected to a first fixing plate (704) and a second fixing plate (705).

8. The automatic zipper alignment and hot-melt device for a pharmaceutical packaging bag production line according to claim 7, characterized in that, The interior of the second fixed plate (705) is rotatably connected to the second guide roller (707) via the third rotating shaft (706). The side surface of the second rotating shaft (702) is rotatably connected to the first fixed plate (704), and the side surface of the second rotating shaft (702) is fixedly connected to the first guide roller (703).

9. The automatic zipper alignment and hot-melt device for a pharmaceutical packaging bag production line according to claim 1, characterized in that, The rear surface of the frame (1) is fixedly connected to a fifth support plate (19), and the upper surface of the fifth support plate (19) is fixedly connected to the purification box (17).

10. The automatic zipper alignment and hot-melt device for a pharmaceutical packaging bag production line according to claim 1, characterized in that, The inside of the flow guide (9) is provided with a sealing block (10). The fan (807) and the sealing block (10) are both located inside the flow guide (9). The frame (1) is provided with a support leg (23) below it. The frame (1) is provided with a controller (24) and an operating table (26).

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