Gluing device and technology of medical sterilization paper bag double-folding machine

Abstract

The invention discloses a gluing device and technology of a medical sterilization paper bag double-folding machine, and belongs to the field of paper bag processing. The device comprises a plurality of gluing blocks and a plurality of filling blocks which are arranged in the glue conveying roller in a sliding mode, the gluing blocks can synchronously slide in the glue conveying roller through synchronous grooves and can be unfolded or contracted, then the diameter of a local position can be changed, and the unfolded gluing blocks enable the diameter of the position to be larger than that of other positions. Meanwhile, a sliding driving rod is arranged in the glue conveying roller, and the driving rod slides to drive the multiple rotating rings to rotate at the same time through a sliding driving shaft in the driving rod and spiral grooves in the surfaces of the rotating rings; further, the rotation of the rotating ring at the sliding-out position of the driving shaft can be quickly realized, the gluing blocks at multiple positions are prompted to contract, and when different positions of the paper bag are glued, quick change can be realized, and multiple areas of the surface of the paper bag can be coated with glue.

Description

Technical Field

[0001] The present invention relates to the field of paper bag processing, and particularly to a glue coating device and process for a double-folding machine of medical sterilization paper bags. Background Art

[0002] Medical sterilization paper bags are usually made by laminating medical-grade dialysis paper with a lamination coating, and are generally used for packaging sterilized medical devices, dressings and other items; medical sterilization paper bags can generally be folded in half by a double-folding machine, and the bag mouth sealing area, the bottom double-fold and the side longitudinal seams are glued by the glue coating module of the double-folding machine.

[0003] In the existing paper bag glue coating, generally, a transfer roller is directly used for glue coating. A single transfer roller is arranged in a glue tank, and a pressure roller is arranged to engage with it. The paper bag passes between the transfer roller and the pressure roller and contacts the transfer roller on one side to achieve single-sided glue coating; however, in the above glue coating process, since the transfer roller is directly immersed in the glue tank, it is difficult to control the area of the glue on its surface, and there is glue at the positions in contact with the glue, so it is difficult to control the area of the paper bag surface to be glued. Moreover, during the paper bag forming process, at least two glue coating devices need to be arranged to glue the side, bottom and sealing part of the paper bag surface. During use, the cooperation between multiple glue coating devices needs to be ensured, and the relative maintenance cost is relatively high. At the same time, the positioning errors of the glue coating devices are difficult to avoid being superimposed, making the error degree of the finished product relatively higher and affecting the quality of the finished product.

[0004] In summary, when the medical sterilization paper bag in the prior art is glued by a transfer roller, it is difficult to change the glue coating area, and multiple glue coating devices are required to cooperate to complete the glue coating, resulting in an increase in the relative error of the finished product and affecting the quality of the finished product. Summary of the Invention

[0005] The present invention provides a glue coating device and process for a double-folding machine of medical sterilization paper bags, which can solve the problems in the prior art that when the medical sterilization paper bag is glued by a transfer roller, it is difficult to change the glue coating area, and multiple glue coating devices are required to cooperate to complete the glue coating, resulting in an increase in the relative error of the finished product and affecting the quality of the finished product.

[0006] A glue coating device for a double-folding machine of medical sterilization paper bags includes a transfer roller rotatably arranged inside the frame of the double-folding machine. An adjustment mechanism is arranged inside the transfer roller, and the adjustment mechanism includes:

[0007] A driving rod slidably arranged inside the transfer roller, and a plurality of driving shafts are slidably connected inside the driving rod;

[0008] A plurality of adjustment components are slidably arranged inside the transfer roller, and the adjustment components include:

[0009] A number of glue - applying blocks and a number of filling blocks are slidably arranged inside the glue - transferring roller, and the two are arranged at intervals. A delay component is arranged between the glue - applying blocks and the filling blocks;

[0010] A rotating ring is rotatably arranged inside the glue - transferring roller. Synchronous grooves adapted to the glue - applying blocks are formed on the surface of the rotating ring. Rotating belts are fixedly connected between the rotating ring and the filling blocks. A spiral groove is formed on the surface of the rotating ring, and the spiral groove is adapted to the driving shaft.

[0011] Optionally, the delay component includes a number of delay grooves formed on the surface of the rotating ring. The delay grooves communicate with the synchronous grooves, and the cross - sections of the delay grooves and the synchronous grooves are L - shaped. Synchronous columns are fixedly connected to the surfaces of the glue - applying blocks, and the synchronous columns are adapted to the delay grooves and the synchronous grooves.

[0012] Optionally, a rotating spring is rotatably connected between the filling block and the rotating ring. Rotating shafts are fixedly connected to the ends of the rotating spring. Rotating grooves are formed on the surface of the rotating ring, and the rotating shafts are adapted to the rotating grooves.

[0013] Optionally, a driving cylinder is fixedly connected to the surface of the double - folding machine frame. The end of the piston rod inside the driving cylinder is rotatably connected to the driving rod. A sliding groove is formed inside the driving rod. A number of control cylinders are fixedly connected inside the sliding groove. The piston rod inside the control cylinder is fixedly connected to the driving shaft. A connecting spring is fixedly connected between the driving shaft and the sliding groove, and the connecting spring is sleeved on the surface of the control cylinder.

[0014] Optionally, a supporting rod is slidably connected to the surface of the double - folding machine frame. A supporting spring is fixedly connected between the supporting rod and the double - folding machine frame. A driving component is arranged between the supporting rod and the driving rod.

[0015] Optionally, the driving component includes a turning column rotatably arranged inside the double - folding machine frame. A connecting belt is fixedly connected between the supporting rod and the driving rod. The cross - section of the connecting belt is L - shaped, and the connecting belt is in contact with the turning column.

[0016] Optionally, a glue - applying box is fixedly connected inside the double - folding machine frame. A stirring rod is rotatably arranged inside the glue - applying box. A number of penetration holes are formed on one side of the glue - applying box close to the glue - transferring roller. One - way valves are fixedly arranged inside the penetration holes; the glue - transferring roller is in contact with the penetration holes.

[0017] Optionally, a motor is fixedly connected to the surface of the double - folding machine frame. The end of the output shaft of the motor is fixedly connected to the end of the glue - transferring roller. Driving gears are fixedly connected to the surfaces of the glue - transferring roller and the stirring rod, and the two driving gears are meshed.

[0018] Optionally, a pressure roller is rotatably connected inside the double-folding machine frame. A moving cylinder is fixedly connected to the surface of the double-folding machine frame. The end of the output shaft of the moving cylinder is fixedly connected to a moving block, and the moving block is rotatably connected to the pressure roller.

[0019] A glue coating process for a medical sterilization paper paper bag double-folding machine includes the following steps:

[0020] S1. Feeding: Pass the medical sterilization paper paper bag material through the area between the pressure roller and the glue transfer roller. Control the driving cylinder to cause the driving rod to slide, so that all the rotating rings rotate, the glue coating blocks and the filling blocks move. Control the moving cylinder to drive the moving block to move, so that the medical sterilization paper paper bag material fits against the pressure roller.

[0021] S2. Global glue coating: Start the motor, and the surfaces of the glue coating blocks and the filling blocks are covered with glue, and the glue contacts the medical sterilization paper paper bag material.

[0022] S3. Local glue coating: Control the control cylinder to cause some of the drive shafts to move, and some of the drive shafts disengage from the spiral grooves. Drive the driving rod to slide through the driving cylinder, so that some of the other drive shafts drive the rotating rings to rotate, and the glue coating blocks retract. At the same time, the supporting rod moves under the action of the supporting spring, and the supporting rod contacts the medical sterilization paper paper bag material. The non-moving glue coating blocks contact the medical sterilization paper paper bag material for glue coating.

[0023] The present invention provides a glue coating device and process for a medical sterilization paper paper bag double-folding machine, including a number of glue coating blocks and a number of filling blocks slidably arranged inside the glue transfer roller. The number of glue coating blocks can slide synchronously inside the glue transfer roller through the synchronous grooves. The number of glue coating blocks can expand or contract, and thus the diameter of the local position will change. When there are expanded glue coating blocks, it means that the diameter of this position is larger than other positions, and this position will contact the paper bag. At this time, the glue coating blocks at other positions do not contact the paper bag, so as to realize the glue coating at a single position and achieve the purpose of adjusting the glue coating area. And a sliding driving rod is arranged inside the glue transfer roller. Through the driving shaft sliding inside the driving rod and the spiral grooves on the surface of the rotating ring, the sliding of the driving rod can drive a plurality of rotating rings to rotate simultaneously. Thus, it can quickly realize the rotation of the rotating ring at the position where the driving shaft slides out, and prompt the glue coating blocks at multiple positions to contract. When applying glue to different positions of the paper bag, it can be quickly changed, and the glue is applied to multiple areas on the surface of the paper bag through a single glue transfer roller. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic structural diagram of a glue coating device for a medical sterilization paper paper bag double-folding machine provided by the present invention;

[0025] Figure 2 It is an exploded perspective view of the adjusting mechanism provided by the present invention;

[0026] Figure 3Exploded perspective view of the adjustment component provided by the present invention;

[0027] Figure 4 Perspective cross-sectional view of the synchronous groove provided by the present invention;

[0028] Figure 5 Provided by the present invention Figure 3 Enlarged view of the local structure at A in

[0029] Explanation of reference numerals:

[0030] 1. Double-fold machine frame; 2. Glue transfer roller; 3. Pressure roller; 4. Driving rod; 5. Driving shaft; 6. Glue application block; 7. Filling block; 8. Rotating ring; 9. Synchronous groove; 10. Rotating belt; 11. Spiral groove; 12. Delay groove; 13. Rotating spring; 14. Rotating shaft; 15. Rotating groove; 16. Driving cylinder; 17. Control cylinder; 18. Connecting spring; 19. Supporting rod; 20. Supporting spring; 21. Connecting belt; 22. Glue application box; 23. Stirring rod; 24. Transmission gear; 25. Moving block. Detailed description of the specific implementation

[0031] The following is a detailed description of the specific implementation of the present invention, but it should be understood that the protection scope of the present invention is not limited by the specific implementation.

[0032] As Figures 1 to 5 shown, a glue application device for a medical sterilization paper paper bag double-fold machine provided by an embodiment of the present invention includes a glue transfer roller 2 and a pressure roller 3. The glue transfer roller 2 and the pressure roller 3 are both rotatably arranged on the surface of the double-fold machine frame 1. An adjustment mechanism is arranged inside the glue transfer roller 2. The adjustment mechanism includes:

[0033] Driving rod 4, the driving rod 4 is slidably arranged inside the glue transfer roller 2, and a plurality of driving shafts 5 are slidably connected inside the driving rod 4;

[0034] A plurality of adjustment components, the adjustment components are all slidably arranged inside the glue transfer roller 2. The adjustment components include:

[0035] A plurality of glue application blocks 6 and a plurality of filling blocks 7. The glue application blocks 6 and the filling blocks 7 are both slidably arranged inside the glue transfer roller 2, and the glue application blocks 6 and the filling blocks 7 are arranged at intervals. A plurality of the glue application blocks 6 are arranged in a circular array inside the glue transfer roller 2; A delay component for realizing the sliding of the glue application block 6 with a delay is arranged between the glue application block 6 and the filling block 7;

[0036] Rotate the rotating ring 8. The rotating ring 8 is rotatably arranged inside the glue transfer roller 2. A plurality of synchronous grooves 9 are formed on the surface of the rotating ring 8. The synchronous grooves 9 are adapted to the glue application blocks 6. Rotating belts 10 are fixedly connected between the rotating ring 8 and the filling blocks 7. A rotating spring 13 is rotatably connected between the filling block 7 and the rotating ring 8. A spiral groove 11 is formed on the surface of the rotating ring 8. The spiral groove 11 is adapted to the driving shaft 5.

[0037] In summary, the glue application device of the medical sterilization paper paper bag double folding machine provided by the embodiment of the present invention includes a plurality of glue application blocks 6 and a plurality of filling blocks 7 slidably arranged inside the glue transfer roller 2. The plurality of glue application blocks 6 can slide synchronously inside the glue transfer roller 2 through the synchronous grooves 9. The plurality of glue application blocks 6 can be expanded or contracted, and thus the diameter of a local position will change. When there are expanded glue application blocks 6, it means that the diameter of this position is larger than other positions, and this position will contact the paper bag. At this time, the glue application blocks 6 at other positions do not contact the paper bag, thereby realizing glue application at a single position and achieving the purpose of adjusting the glue application area. And a sliding driving rod 4 is arranged inside the glue transfer roller 2. Through the driving shaft 5 sliding inside the driving rod 4 and the spiral groove 11 on the surface of the rotating ring 8, the sliding of the driving rod 4 can drive a plurality of rotating rings 8 to rotate simultaneously, and thus can quickly realize the rotation of the rotating ring 8 at the position where the driving shaft 5 slides out, prompting the glue application blocks 6 at multiple positions to contract. When applying glue to different positions of the paper bag, it can be quickly changed, and the glue is applied to multiple areas on the surface of the paper bag through a single glue transfer roller 2.

[0038] In some specific implementation schemes, the delay assembly includes a plurality of delay grooves 12 formed on the surface of the rotating ring 8. The delay grooves 12 are communicated with the synchronous grooves 9, and the cross-sections of the delay grooves 12 and the synchronous grooves 9 are in an L shape. A synchronous column is fixedly connected to the surface of the glue application block 6. The synchronous column is adapted to the delay grooves 12 and the synchronous grooves 9. After the rotating ring 8 rotates to make the filling block 7 and the glue application block 6 reach appropriate positions, the rotating ring 8 can continue to rotate, prompting the synchronous column to slide into the delay groove 12. During the subsequent reverse rotation of the rotating ring 8, the rotation will first pull the filling block 7 to move, and then prompt a plurality of glue application blocks 6 to slide, so that the filling block 7 is always located between the glue application block 6 and the rotating ring 8 during the contraction process.

[0039] In some specific implementation schemes, the ends of the rotating spring 13 are fixedly connected with rotating shafts 14. Rotating grooves 15 are formed on the surface of the rotating ring 8. The rotating shafts 14 are adapted to the rotating grooves 15. During the rotation of the rotating ring 8, one end of the rotating spring 13 driven by the rotating shaft 14 slides inside the rotating groove 15, ensuring that the rotating spring 13 will not bend, and thus restricting the sliding track of the filling block 7 through the rotating spring 13 and the connecting belt 21.

[0040] In some specific embodiments, a driving cylinder 16 is fixedly connected to the surface of the double-fold machine frame 1. The end of the piston rod inside the driving cylinder 16 is rotatably connected to a driving rod 4. A sliding groove is formed inside the driving rod 4. A plurality of control cylinders 17 are fixedly connected inside the sliding groove. The piston rod inside the control cylinder 17 is fixedly connected to a driving shaft 5. A connecting spring 18 is fixedly connected between the driving shaft 5 and the sliding groove. The connecting spring 18 is sleeved on the surface of the control cylinder 17. The movement time and movement distance of the driving rod 4 can be controlled by the driving cylinder 16, and the movement of the piston rod inside the driving cylinder 16 can be controlled by a PLC controller, which is convenient for the operator to quickly operate. Moreover, a plurality of separate control cylinders 17 are arranged inside the driving rod 4. The position of the driving shaft 5 is controlled by the control cylinder 17. When the driving shaft 5 slides into the driving rod 4, it will disengage from the spiral groove 11. At this time, when the driving rod 4 slides, the rotating ring 8 that is not in contact with the driving shaft 5 will not rotate and will maintain its original position, thereby maintaining the position of the glue application block 6 at this position. The control by the control cylinder 17 is more convenient.

[0041] In some specific embodiments, a supporting rod 19 is slidably connected to the surface of the double-fold machine frame 1. A supporting spring 20 is fixedly connected between the supporting rod 19 and the double-fold machine frame 1. A driving component is arranged between the supporting rod 19 and the driving rod 4. The supporting rod 19 is located in the transmission section of the sterilized paper paper bag material, and the sterilized paper paper bag material is transmitted from the supporting rod 19 to the glue transfer roller 2.

[0042] In a further embodiment, the driving component includes a turning column. The turning column is rotatably arranged inside the double-fold machine frame 1. A connecting belt 21 is fixedly connected between the supporting rod 19 and the driving rod 4. The cross-section of the connecting belt 21 is L-shaped, and the connecting belt 21 is in contact with the turning column. Due to the existence of the connecting belt 21, the sliding of the driving rod 4 can make the connecting belt 21 in a slack state. Then, by the force of the supporting spring 20, the supporting rod 19 can be promoted to move upward. Thus, after some glue application blocks 6 contract, the transmitted sterilized paper paper bag material can be supported, avoiding the non-horizontal state of the sterilized paper paper bag material in the area of the glue transfer roller 2. When the sterilized paper paper bag material is non-horizontal, some materials will contact the contracted glue application blocks 6, which will increase the non-preset glue application area and affect the subsequent finished products.

[0043] In some specific embodiments, a glue application box 22 is fixedly connected inside the double-fold machine frame 1. A stirring rod 23 is rotatably arranged inside the glue application box 22. A plurality of penetration holes are formed on one side of the glue application box 22 close to the glue transfer roller 2. One-way valves (not shown in the figure) are fixedly arranged inside the penetration holes. The glue transfer roller 2 is in contact with the penetration holes.

[0044] In a further embodiment, a motor is fixedly connected to the surface of the double-folding machine frame 1, and the end of the output shaft of the motor is fixedly connected to the end of the glue-transferring roller 2. Transmission gears 24 are fixedly connected to the surfaces of the glue-transferring roller 2 and the stirring rod 23, and the two transmission gears 24 are meshed; the rotation of the glue-transferring roller 2 can be controlled by the motor, and at the same time, the stirring rod 23 is caused to rotate by the transmission gear 24, and the stirring rod 23 stirs the inside of the glue application box 22 to avoid the generation of bubbles;

[0045] In some specific embodiments, a moving cylinder is fixedly connected to the surface of the double-folding machine frame 1, and the end of the output shaft of the moving cylinder is fixedly connected to a moving block 25, and the moving block 25 is rotationally connected to the pressing roller 3;

[0046] The present invention embodiment also provides a glue application process for the glue application device of the above-mentioned medical sterilization paper paper bag double-folding machine, including the following steps:

[0047] S1. Feeding, passing the medical sterilization paper paper bag material through the area between the pressing roller 3 and the glue-transferring roller 2; controlling the driving cylinder 16 to cause the driving rod 4 to slide, so that all the rotating rings 8 rotate, the glue application block 6 and the filling block 7 move, and controlling the moving cylinder to drive the moving block 25 to move, so that the medical sterilization paper paper bag material is attached to the pressing roller 3;

[0048] S2. Global glue application, starting the motor, covering the surfaces of the glue application block 6 and the filling block 7 with glue, and the glue contacts the medical sterilization paper paper bag material;

[0049] S3. Local glue application, controlling the control cylinder 17 to cause some of the drive shafts 5 to move, some of the drive shafts 5 to disengage from the spiral groove 11, driving the driving rod 4 to slide through the driving cylinder 16, causing some other drive shafts 5 to drive the rotating ring 8 to rotate, the glue application block 6 to retract, and at the same time, the supporting rod 19 moves under the action of the supporting spring 20, the supporting rod 19 contacts the medical sterilization paper paper bag material, and the non-moving glue application block 6 contacts the medical sterilization paper paper bag material for glue application.

[0050] The above-disclosed are only several specific embodiments of the present invention. However, the embodiments of the present invention are not limited thereto, and any changes that can be thought of by those skilled in the art should fall within the protection scope of the present invention.

Claims

1. A glue - applying device for a double - folding machine of medical sterilization paper bags, comprising a glue - transferring roller (2) rotatably arranged inside the frame (1) of the double - folding machine, characterized in that, An adjusting mechanism is provided inside the glue transfer roller (2), and the adjusting mechanism includes: A driving rod (4) slidably arranged inside the glue transfer roller (2), and a plurality of driving shafts (5) are slidably connected inside the driving rod (4); A plurality of adjusting components are slidably arranged inside the glue transfer roller (2), and each adjusting component includes: A plurality of glue application blocks (6) and a plurality of filling blocks (7) slidably arranged inside the glue transfer roller (2), and the two are arranged at intervals. A delay component is arranged between the glue application block (6) and the filling block (7); A rotating ring (8) is rotatably arranged inside the glue transfer roller (2). Synchronous grooves (9) adapted to the glue application blocks (6) are formed on the surface of the rotating ring (8). Rotating belts (10) are fixedly connected between the rotating ring (8) and the filling blocks (7). A spiral groove (11) is formed on the surface of the rotating ring (8), and the spiral groove (11) is adapted to the driving shaft (5).

2. The glue coating device of a medical sterilization paper paper bag double folding machine according to claim 1, characterized in that, The delay component includes a plurality of delay grooves (12) formed on the surface of the rotating ring (8). The delay grooves (12) communicate with the synchronous grooves (9), and the cross-sections of the delay grooves (12) and the synchronous grooves (9) are L-shaped. Synchronous columns are fixedly connected to the surfaces of the glue application blocks (6), and the synchronous columns are adapted to the delay grooves (12) and the synchronous grooves (9).

3. The glue coating device of a medical sterilization paper paper bag double folding machine as described in claim 1, characterized in that, A rotating spring (13) is rotatably connected between the filling block (7) and the rotating ring (8). Rotating shafts (14) are fixedly connected to the ends of the rotating spring (13). Rotating grooves (15) are formed on the surface of the rotating ring (8), and the rotating shafts (14) are adapted to the rotating grooves (15).

4. The glue coating device of a medical sterilization paper paper bag double folding machine according to claim 1, characterized in that, A driving cylinder (16) is fixedly connected to the surface of the double-fold machine frame (1). The end of the piston rod inside the driving cylinder (16) is rotatably connected to the driving rod (4). A sliding groove is formed inside the driving rod (4). A plurality of control cylinders (17) are fixedly connected inside the sliding groove. The piston rod inside the control cylinder (17) is fixedly connected to the driving shaft (5). A connecting spring (18) is fixedly connected between the driving shaft (5) and the sliding groove, and the connecting spring (18) is sleeved on the surface of the control cylinder (17).

5. The gluing device of a medical sterilization paper paper bag double folding machine as described in claim 1, characterized in that, A supporting rod (19) is slidably connected to the surface of the double-fold machine frame (1). A supporting spring (20) is fixedly connected between the supporting rod (19) and the double-fold machine frame (1). A driving component is arranged between the supporting rod (19) and the driving rod (4).

6. The glue coating device of a medical sterilization paper paper bag double folding machine according to claim 5, characterized in that, The driving component includes a turning column. The turning column is rotatably arranged inside the double-fold machine frame (1). A connecting belt (21) is fixedly connected between the supporting rod (19) and the driving rod (4). The cross-section of the connecting belt (21) is L-shaped, and the connecting belt (21) is in contact with the turning column.

7. The glue coating device of a medical sterilization paper paper bag double folding machine according to claim 1, characterized in that, A glue application box (22) is fixedly connected inside the double-fold machine frame (1). A stirring rod (23) is rotatably arranged inside the glue application box (22). A plurality of penetration holes are formed on one side of the glue application box (22) close to the glue transfer roller (2). Check valves are fixedly arranged inside the penetration holes; the glue transfer roller (2) is in contact with the penetration holes.

8. The glue coating device of a medical sterilization paper paper bag double-folding machine as described in claim 7, characterized in that, A motor is fixedly connected to the surface of the double-folding machine frame (1), and the end of the output shaft of the motor is fixedly connected to the end of the glue-transferring roller (2). Transmission gears (24) are fixedly connected to the surfaces of the glue-transferring roller (2) and the stirring rod (23), and the two transmission gears (24) are meshed with each other.

9. The glue coating device of a medical sterilization paper paper bag double-folding machine according to claim 1, wherein, A pressing roller (3) is rotatably connected to the inside of the double-folding machine frame (1). A moving air cylinder is fixedly connected to the surface of the double-folding machine frame (1), and the end of the output shaft of the moving air cylinder is fixedly connected to a moving block (25). The moving block (25) is rotatably connected to the pressing roller (3).

10. A glue - applying process for a double - folding machine of medical sterilization paper bags, characterized in that, Using the glue-coating device for the double-folding machine of the medical sterilization paper paper bag according to any one of claims 1-9, comprising the following steps: S1. Feeding: Pass the medical sterilization paper paper bag material through the area between the pressing roller (3) and the glue-transferring roller (2); control the driving air cylinder (16) to cause the driving rod (4) to slide, so that all the rotating rings (8) rotate, the glue-coating block (6) and the filling block (7) move, and control the moving air cylinder to drive the moving block (25) to move, so that the medical sterilization paper paper bag material is attached to the pressing roller (3). S2. Global glue-coating: Start the motor, and the surfaces of the glue-coating block (6) and the filling block (7) are covered with glue, and the glue contacts the medical sterilization paper paper bag material. S3. Local glue-coating: Control the control air cylinder (17) to cause part of the driving shafts (5) to move, and part of the driving shafts (5) disengage from the spiral grooves (11). Drive the driving rod (4) to slide through the driving air cylinder (16), so that another part of the driving shafts (5) drives the rotating rings (8) to rotate, the glue-coating block (6) retracts, and at the same time, the supporting rod (19) moves under the action of the supporting spring (20), the supporting rod (19) contacts the medical sterilization paper paper bag material, and the non-moving glue-coating block (6) contacts the medical sterilization paper paper bag material for glue-coating.

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