Processing system for preparing degradable plastic bag

Abstract

The invention relates to the technical field of plastic bag processing, in particular to a degradable plastic bag preparation processing system which comprises a transverse cutting mechanism, a thermal plastic packaging mechanism, a longitudinal cutting mechanism, a notching mechanism, a first folding mechanism, a second folding mechanism and a storage mechanism which are sequentially arranged above a fixed seat from front to back. A conveying unit is arranged between the thermal plastic packaging mechanism and the longitudinal cutting mechanism behind the thermal plastic packaging mechanism, a first conveying belt is arranged below the first folding mechanism, a second conveying belt is arranged below the second folding mechanism, and an overturning plate is arranged between the first conveying belt and the second conveying belt. According to the processing system for preparing the degradable plastic bags, the transverse cutting mechanism can be automatically adjusted according to production requirements, and the finished plastic bags are folded and stored through the first folding mechanism and the second folding mechanism.

Description

Technical Field

[0001] The invention relates to the technical field of plastic bag processing, in particular to a processing system for preparing degradable plastic bags. Background Art

[0002] Degradable plastics refer to a type of plastic whose products have various properties that can meet the use requirements, and the properties remain unchanged during the shelf life. After use, they can be degraded into environmentally friendly substances under natural environmental conditions. Therefore, they are also called environmentally degradable plastics. With the increase of environmental awareness, the use of biodegradable plastic raw materials is becoming more and more common. This type of plastic bag processing system is committed to reducing environmental pollution.

[0003] Bag making machines are machines that make various plastic packaging bags or other material packaging bags. Their processing range includes plastic or other material packaging bags of various sizes, thicknesses and specifications. Generally speaking, plastic packaging bags are the main products. Currently, most bag making machines only support the production of the same type of plastic bags. When changing to different models, the cutter needs to be adjusted manually. The finished plastic bags are laid flat and are not easy to fold and store. In addition, scraps will be generated during the production conversion process. If they are not collected and utilized properly, it will cause a waste of raw materials. Summary of the invention

[0004] The purpose of the present invention is to provide a processing system for preparing degradable plastic bags, wherein a cross-cutting mechanism can be automatically adjusted according to production requirements, and a first folding mechanism and a second folding mechanism fold and store the finished plastic bags.

[0005] To achieve the above-mentioned purpose, the present invention provides a processing system for preparing degradable plastic bags, including a cross-cutting mechanism, a heat-plastic sealing mechanism, a longitudinal cutting mechanism, a punching mechanism, a first folding mechanism, a second folding mechanism and a storage mechanism which are arranged in sequence from front to back above a fixed seat, a rewinding roller is provided in front of the cross-cutting mechanism, a conveying unit is provided between the heat-plastic sealing mechanism and the longitudinal cutting mechanism at the rear, a first conveyor belt is provided below the first folding mechanism, a second conveyor belt is provided below the second folding mechanism, and a flip plate is provided between the first conveyor belt and the second conveyor belt.

[0006] Preferably, the cross-cutting knife 1 of the cross-cutting mechanism is threadedly connected to the cross-cutting knife shaft 1, the cross-cutting knife 2 is threadedly connected to the cross-cutting knife shaft 2, one end of the cross-cutting knife shaft 1 is connected to the cross-cutting motor on the side wall of the cross-cutting knife holder, and the other end is connected to the cross-cutting driving gear, the cross-cutting driving gear is meshed with the cross-cutting driven gear on the opposite side of the cross-cutting motor, and the cross-cutting driven gear is connected to the cross-cutting knife shaft 2.

[0007] Preferably, the thermoplastic sealing knife of the thermoplastic sealing mechanism is connected to the thermoplastic sealing knife holder through a plurality of thermoplastic sealing knife fixing rods, the driving cam at the bottom of the thermoplastic sealing knife holder is connected to the thermoplastic sealing knife driving shaft, and the thermoplastic sealing positioning plate connected to the side wall of the fixing seat is located below the thermoplastic sealing knife.

[0008] Preferably, a longitudinal cutting positioning plate is provided below the longitudinal cutting knife of the longitudinal cutting mechanism, the longitudinal cutting positioning plate is connected to the side wall of the fixing seat, and the longitudinal cutting knife is connected to the longitudinal cutting knife fixing frame through the longitudinal cutting cylinder.

[0009] Preferably, a punching plate is provided above the punching table of the punching mechanism, the punching plate is connected to the punching cylinder, a sorting brush is provided in front of the punching table, a bag counting brush is provided in front of the sorting brush, a bag counting synchronous wheel 1 is provided on the bag counting shaft of the bag counting brush, the bag counting synchronous wheel 1 is connected to the bag counting synchronous wheel 2 through the bag counting synchronous belt, the bag counting synchronous wheel 2 is connected to the bag counting motor, and the bag counting motor is connected to the bag counting frame.

[0010] Preferably, the first folding mechanism is located behind the punching table, the folding fixing clamp is connected to the first folding cylinder, a folding fixing plate is provided below the folding fixing clamp, the folding fixing plate is connected to the folding fixing cylinder below, and the first folding movable seat of the folding clamp is connected to the synchronous belt through a synchronous connecting block.

[0011] Preferably, a movable cylinder 1 is provided in the fixed groove of the second folding mechanism, and the end of the movable cylinder 1 away from the fixed groove is connected to the folding fixed plate 2, a folding fixed frame is provided in the center of the folding fixed plate 2, the folding fixed frame is connected to the folding fixed clamp 2 through the folding fixed cylinder 2, the folding fixed clamp 2 is a Z-shaped structure, a folding clamp 2 is provided above the folding fixed frame 2, and the folding clamp 2 is connected to the movable cylinder 2 of the second folding movable seat.

[0012] Preferably, the structure of folding clamp 2 is the same as that of folding clamp 1, the end of folding clamp 1 is hinged to folding cylinder 1 in the middle of the side wall of folding base 1, the other end of folding cylinder 1 is hinged to the end of the side wall of folding base 1, and the front end of folding base 1 contacts the top of folding clamp 1.

[0013] Preferably, a flip shaft is provided on one side of the flip plate close to the second conveyor belt, a flip motor connected to the flip shaft is connected to the side wall of the fixed seat, and the flip plate is in an L-shaped structure.

[0014] Preferably, a storage movable plate is provided at the bottom of the storage groove of the storage mechanism, the bottom of the storage movable plate is connected to the storage cylinder, and the storage groove is a U-shaped groove.

[0015] Therefore, the present invention adopts a processing system for preparing a degradable plastic bag with the above structure, and its beneficial effect is that the cross-cutting mechanism can be automatically adjusted according to production requirements, and the first folding mechanism and the second folding mechanism fold the finished plastic bags and put them into the storage slot for unified storage; By collecting the waste through the waste winding unit, it can be determined whether the waste can be used to produce plastic bags of different types according to production needs, thereby improving the utilization rate of raw materials.

[0016] The technical solution of the present invention is further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of a processing system for preparing a degradable plastic bag of the present invention (the second folding mechanism and the storage mechanism are not shown); Figure 2 It is a schematic diagram of a cross-cutting mechanism in a processing system for preparing a degradable plastic bag of the present invention; Figure 3 It is a schematic diagram of a heat-plastic sealing mechanism in a processing system for preparing a degradable plastic bag of the present invention; Figure 4 It is a schematic diagram of a punching mechanism in a processing system for preparing a degradable plastic bag of the present invention; Figure 5 It is a schematic diagram of a first folding mechanism in a processing system for preparing a degradable plastic bag of the present invention; Figure 6 It is a side view of a first folding mechanism, a second folding mechanism and a storage mechanism in a processing system for preparing a degradable plastic bag of the present invention; Figure 7 The present invention Figure 6 A in the enlarged view; Figure 8 The present invention Figure 6 The enlarged view of point B in the figure; Fig. 9 It is a schematic diagram of a finishing brush in a processing system for preparing a degradable plastic bag of the present invention; Fig.10 It is a schematic diagram of a waste winding unit in a processing system for preparing a degradable plastic bag according to the present invention.

[0018] Reference numerals: 1. Crosscutting mechanism; 11. Crosscutting knife 1; 12. Crosscutting knife shaft 1; 13. Crosscutting knife 2; 14. Crosscutting knife shaft 2; 15. Crosscutting motor; 2. Thermoplastic sealing mechanism; 21. Thermoplastic sealing knife; 22. Thermoplastic sealing knife fixing rod; 23. Thermoplastic sealing knife frame; 24. Driving cam; 25. Thermoplastic sealing knife driving shaft; 3. Longitudinal cutting mechanism; 31. Longitudinal cutting knife; 32. Longitudinal cutting cylinder; 33. Longitudinal cutting knife fixing frame; 4. Punching mechanism; 41. Punching table; 42. Punching plate; 43. Punching cylinder; 44. Arrangement cylinder; 45. Counting brush; 46. Counting motor; 47. Counting frame; 5. First folding mechanism; 51. First folding cylinder; 52. Folding fixing clamp 1; 53. Folding fixing clamp Fixed plate one; 54, first folding movable seat; 55, folding clamp one; 56, folding cylinder one; 57, folding base one; 6, second folding mechanism; 61, folding clamp two; 62, second folding movable seat; 63, mobile cylinder one; 64, folding fixed plate two; 65, second fixed platform; 66, mobile cylinder two; 67, folding fixed frame; 68, folding fixed cylinder two; 69, folding fixed clamp two; 7, storage mechanism; 71, storage slot; 72, storage cylinder; 73, storage movable plate; 8, fixed seat; 81, limit plate; 82, synchronous connection block one; 83, first conveyor belt; 84, second conveyor belt; 85, unwinding roller; 86, waste winding unit; 9, flip plate. DETAILED DESCRIPTION

[0019] The present invention is further described below in conjunction with the accompanying drawings and embodiments. Unless otherwise defined, the technical terms or scientific terms used in the present invention should be the common meanings understood by people with ordinary skills in the field to which the present invention belongs. The above-mentioned features or features mentioned in the specific examples mentioned in the present invention can be combined arbitrarily, and these specific embodiments are only used to illustrate the present invention and are not used to limit the scope of the present invention.

[0020] Example The present invention provides a processing system for preparing a degradable plastic bag, comprising a cross-cutting mechanism 1, a heat-plastic sealing mechanism 2, a longitudinal cutting mechanism 3, a punching mechanism 4, a first folding mechanism 5, a second folding mechanism 6 and a storage mechanism 7 which are sequentially arranged from front to back above a fixed seat 8. A reeling roller 85 is arranged in front of the cross-cutting mechanism 1, and a conveying unit is arranged between the heat-plastic sealing mechanism 2 and the longitudinal cutting mechanism 3 at the rear. A first conveyor belt 83 is arranged below the first folding mechanism 5, a second conveyor belt 84 is arranged below the second folding mechanism 6, and a flip plate 9 is arranged between the first conveyor belt 83 and the second conveyor belt 84.

[0021] like Figure 1 , Fig.10As shown, the plastic bag raw material roll is placed on the unwinding roller 85, and the plastic bag raw material roll moves to the cross-cutting mechanism 1 through various feeding rollers, and is cut according to the required width at the cross-cutting mechanism 1, and the raw materials with qualified width enter the heat-plastic sealing mechanism 2. The waste material after cutting enters the waste material winding unit 86 for winding through the guide roller behind the cross-cutting mechanism 1. It can be judged whether it can be used as raw material for the next production based on the width of the waste material. The waste material winding unit 86 is a pair of winding rollers in the prior art, which will not be described in detail here. The heat-plastic sealing mechanism 2 heat-seals and separates the cut raw material according to the required length, and the heat-sealed raw material enters the longitudinal cutting mechanism 3 through the transmission unit, and is cut by the longitudinal cutting mechanism 3 to obtain independent semi-finished plastic bags. The transmission unit is a conveyor belt in the prior art, which will not be described in detail here.

[0022] After the semi-finished plastic bags are sorted to a specified number by the bag counting brush 45, they are picked up by the first folding mechanism 5 and brought backward into the punching mechanism 4 to obtain finished plastic bags. The finished plastic bags are folded for the first time at the folding fixing plate 53. After the first folding, the finished plastic bags fall onto the turning plate 9 via the first conveyor belt 83, and enter the second conveyor belt 84 after being turned over by the turning plate 9. The second conveyor belt 84 delivers the finished plastic bags to the second folding mechanism 6, and after the second folding, they are delivered to the storage mechanism 7 for unified storage.

[0023] like Figure 2 As shown, the crosscutting knife 11 of the crosscutting mechanism 1 is threadedly connected with the crosscutting knife shaft 12, and the crosscutting knife 2 13 is threadedly connected with the crosscutting knife shaft 2 14. A crosscutting knife limit rod 1 is provided above the crosscutting knife shaft 12, and a crosscutting knife limit rod 2 is provided above the crosscutting knife shaft 2 14. One end of the crosscutting knife shaft 12 is connected to the crosscutting motor 15 on the side wall of the crosscutting knife holder, and the other end thereof is connected to the crosscutting driving gear. The crosscutting driving gear meshes with the crosscutting driven gear on the opposite side of the crosscutting motor 15, and the crosscutting driven gear is connected to the crosscutting knife shaft 2 14.

[0024] The second cross-cutting knife shaft 14 is located behind the first cross-cutting knife shaft 12. The cross-cutting motor 15 is started to drive the cross-cutting driving gear to rotate, and the cross-cutting driving gear drives the cross-cutting driven gear meshing therewith to rotate, thereby driving the cross-cutting knife shaft 12 and the second cross-cutting knife shaft 14 to rotate relative to each other. The cross-cutting knife shaft 12 and the second cross-cutting knife shaft 14 are symmetrically provided with threads with opposite thread directions. By adjusting the rotation direction of the cross-cutting knife shaft 12 and the second cross-cutting knife shaft 14, the distance between the first cross-cutting knife 11 and the second cross-cutting knife 13 can be adjusted according to production needs, and the first cross-cutting knife 11 and the second cross-cutting knife 13 cut the raw materials.

[0025] like Figure 3As shown, the thermoplastic sealing knife 21 of the thermoplastic sealing mechanism 2 is connected to the thermoplastic sealing knife holder 23 through a plurality of thermoplastic sealing knife fixing rods 22, the driving cam 24 at the bottom of the thermoplastic sealing knife holder 23 is connected to the thermoplastic sealing knife driving shaft 25, and the thermoplastic sealing positioning plate connected to the side wall of the fixing seat 8 is located below the thermoplastic sealing knife 21.

[0026] The thermoplastic motor on the side wall of the fixed seat 8 is connected to the thermoplastic sealing knife driving shaft 25. The rotation of the thermoplastic sealing knife driving shaft 25 drives the driving cam 24 to rotate accordingly, thereby driving the thermoplastic sealing knife holder 23 and the thermoplastic sealing knife 21 to move up and down. The thermoplastic sealing knife 21 contacts the thermoplastic sealing positioning plate to complete the heat sealing separation of the cut raw materials between the two. The thermoplastic sealing knife holder 23 is slidably connected to the mounting hole of the fixed seat 8 to limit the thermoplastic sealing knife holder 23 that moves up and down.

[0027] like Figure 4 As shown, a slitting positioning plate is provided below the slitting knife 31 of the slitting mechanism 3, the slitting positioning plate is connected to the side wall of the fixing seat 8, and the slitting knife 31 is connected to the slitting knife fixing frame 33 through the slitting cylinder 32. The slitting cylinder 32 drives the slitting knife 31 to move relative to the slitting positioning plate, and cuts the thermoplastic raw material on the slitting positioning plate to obtain a semi-finished plastic bag.

[0028] like Fig. 9 As shown, a punching plate 42 is provided above the punching platform 41 of the punching mechanism 4, and the punching plate 42 is connected to the punching cylinder 43, and a finishing brush is provided in front of the punching platform 41. The finishing brush is connected to the punching frame of the punching mechanism through the finishing cylinder 44, and the punching cylinder 43 passes through the punching frame and is connected to the punching plate 42. A bag counting brush 45 is provided in front of the finishing brush, and a bag counting synchronous wheel 1 is provided on the bag counting shaft of the bag counting brush 45, and the bag counting synchronous wheel 1 is connected to the bag counting synchronous wheel 2 through the bag counting synchronous belt, and the bag counting synchronous wheel 2 is connected to the bag counting motor 46, and the bag counting motor 46 is connected to the bag counting frame 47. When the bag counting motor 46 is started, it drives the bag counting synchronous wheel 1 to rotate, and then drives the bag counting synchronous wheel 2 to rotate through the bag counting synchronous belt, thereby realizing the rotation of the bag counting brush 45.

[0029] The semi-finished plastic bags are transported backwards individually by the bag counting brush 45. After being transported by the bag counting brush 45, multiple semi-finished plastic bags are stacked up. When the number is reached, they are picked up by the folding clamp 55 and brought into the punching table 41. When passing the sorting brush, the sorting cylinder 44 is started to drive the sorting brush close to the plastic bag, and the sorting brush flattens the picked plastic bag. If punching operation is required, after the semi-finished plastic bag reaches the punching table 41, the punching cylinder 43 is started to drive the punching plate 42 to punch the semi-finished plastic bag. If punching operation is not required, the folding clamp 55 directly drives the finished plastic bag to the top of the folding fixing plate 53.

[0030] like Figure 5-Figure 6As shown, the first folding mechanism 5 is located behind the punching table 41, the folding fixing clamp 1 52 is connected to the first folding cylinder 51, and a folding fixing plate 1 53 is provided below the folding fixing clamp 1 52. The folding fixing plate 1 53 is connected to the folding fixing cylinder 1 below, and the first folding movable seat 54 of the folding clamp 1 55 is connected to the synchronous belt 1 through the synchronous connecting block 1 82.

[0031] The synchronous belt 1 connects the driving synchronous wheel 1 and the driven synchronous wheel 1 to rotate synchronously, the driving synchronous wheel 1 is connected to the synchronous motor 1 on the side wall of the fixed frame, and the driving synchronous wheel 1 and the driven synchronous wheel 1 are both hinged to the side wall of the fixed frame. The first folding movable seat 54 is provided with an I-shaped limiting wheel, which is matched and connected with the limiting plate 81 on the fixed seat 8, and the limiting plate 81 is located above the synchronous belt 1.

[0032] The synchronous motor 1 is started, and the active synchronous wheel 1 and the driven synchronous wheel 1 cooperate to drive the synchronous connection block 82 on the synchronous belt 1 to move, thereby changing the position of the folding clamp 55. Driven by the first folding cylinder 51, the folding fixing clamp 52 approaches the folding fixing plate 53, clamps one end of the finished plastic bag, and the unclamped end of the finished plastic bag hangs down along the folding fixing plate 53. The folding clamp 55 approaches the folding fixing plate 53 again, and the folding fixing plate 53 is provided with a clamping groove 1 that matches the folding clamp 55, so that the folding clamp 55 can fold the finished plastic belt once and clamp it and place it on the first conveyor belt 83.

[0033] like Figure 7 As shown, a moving cylinder 1 63 is provided in the fixing groove of the second folding mechanism 6, and one end of the moving cylinder 1 63 away from the fixing groove is connected to the folding fixing plate 2 64. A folding fixing frame 67 is provided in the center of the folding fixing plate 2 64, and the folding fixing frame 67 is connected to the folding fixing clamp 2 69 through the folding fixing cylinder 2 68, and the folding fixing clamp 2 69 is a Z-shaped structure.

[0034] like Figure 8 As shown, the fixing groove is located in the center of the second fixing platform 65, and a placement groove matching the folding fixing plate 64 is connected above the fixing groove. When the folding fixing plate 64 is located inside the placement groove, the folding fixing plate 64, the top of the second fixing platform 65 and the top of the second conveyor belt 84 are at the same horizontal height, which facilitates the plastic bags folded once to enter the folding fixing plate 64.

[0035] After the plastic bag folded once enters the folding fixing plate 2 64, the folding fixing cylinder 2 68 is started to drive the folding fixing clamp 2 69 to fix the plastic bag folded once on the folding fixing plate 2 64. Then the moving cylinder is started to raise the folding fixing plate, and the position between the folding clamp 2 61 and the plastic bag is adjusted by the synchronous motor 2 and the moving cylinder 2 66 to perform a secondary folding on the plastic bag. The folding fixing plate 2 64 is provided with a clamping groove 2 that matches the folding clamp 2 61, so that the folding clamp 2 61 can perform a secondary folding operation.

[0036] The folding clamp 2 61 of the second folding mechanism 6 is connected to the moving cylinder 2 66 of the second folding movable seat 62. The second folding movable seat 62 is connected to the synchronous belt 2 through the synchronous connection block 2. The synchronous belt 2 connects the active synchronous wheel 2 and the driven synchronous wheel 2 for synchronous rotation. The active synchronous wheel 2 is connected to the synchronous motor 2 of the side wall of the fixed frame. Both the active synchronous wheel 2 and the driven synchronous wheel 2 are hinged to the side wall of the fixed frame.

[0037] Start the synchronous motor 2, and drive the second folding movable seat 62 and the second folding clamp 61 to move forward and backward through the synchronous belt 2 and the synchronous connecting block 2. Start the moving cylinder 2 66 to drive the second folding clamp 61 to move up and down relative to the second folding movable seat 62, thereby realizing the adjustment of the position of the second folding clamp 61.

[0038] The structure of the folding clamp 2 61 is the same as that of the folding clamp 1 55 , and the end of the folding clamp 1 55 is hinged to the folding cylinder 1 56 in the middle of the side wall of the folding base 1 57 . The other end of the folding cylinder 1 56 is hinged to the end of the side wall of the folding base 1 57 , and the front end of the folding base 1 57 contacts the top of the folding clamp 1 55 .

[0039] The working principle of the folding clamp 2 61 is the same as that of the folding clamp 1 55. Since the folding clamp 1 55 is hinged to the folding base 1 57, starting the folding cylinder 1 56 can drive the folding clamp 1 55 to move relative to the folding base 1 57. When the folding clamp 1 55 approaches the folding base 1 57, the plastic bag is clamped and moved.

[0040] A flip shaft is provided on one side of the flip plate 9 close to the second conveyor belt 84, and a flip motor connected to the flip shaft is connected to the side wall of the fixing seat 8, and the flip plate 9 is in an L-shaped structure. When the plastic bag after being folded once falls from the first conveyor belt 83 onto the flip plate 9, the flip motor is started to flip the plastic bag after being flipped once and put it onto the second conveyor belt 84, so as to facilitate the secondary folding operation of the plastic bag.

[0041] The bottom of the storage slot 71 of the storage mechanism 7 is provided with a storage movable plate 73, the bottom of which is connected to the storage cylinder 72, and the storage slot 71 is a U-shaped slot. The secondary folded plastic bag is placed in the storage slot 71, the storage cylinder 72 is activated, and the storage movable plate 73 gradually moves down from the top of the storage slot 71 to the bottom, completing the unified storage of the folded plastic bags. The design of the U-shaped slot facilitates the feeding and discharging of the folded plastic bags.

[0042] The second conveyor belt 84 is at a lower level than the first conveyor belt 83, and the flip plate 9 is at the same level as the second conveyor belt 84 when in a horizontal state. The horizontal arrangement of the first conveyor belt 83, the second conveyor belt 84 and the flip plate 9 facilitates smooth flipping of the folded plastic bag.

[0043] Therefore, the present invention adopts a processing system for preparing a degradable plastic bag with the above structure, wherein the cross-cutting mechanism can be automatically adjusted according to production requirements, and the first folding mechanism and the second folding mechanism fold and store the finished plastic bags.

[0044] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that they can still modify or replace the technical solution of the present invention with equivalents, and these modifications or equivalent replacements cannot cause the modified technical solution to deviate from the spirit and scope of the technical solution of the present invention.

Claims

1. A processing system for preparing degradable plastic bags, characterized in that: It includes a cross-cutting mechanism, a heat-plastic sealing mechanism, a longitudinal cutting mechanism, a punching mechanism, a first folding mechanism, a second folding mechanism and a storage mechanism which are arranged in sequence from front to back above a fixed seat, a reeling roller is arranged in front of the cross-cutting mechanism, a transmission unit is arranged between the heat-plastic sealing mechanism and the longitudinal cutting mechanism at the rear, a first conveyor belt is arranged under the first folding mechanism, a second conveyor belt is arranged under the second folding mechanism, and a flip plate is arranged between the first conveyor belt and the second conveyor belt.

2. A processing system for preparing a degradable plastic bag according to claim 1, characterized in that: The crosscutting knife 1 of the crosscutting mechanism is threadedly connected to the crosscutting knife shaft 1, the crosscutting knife 2 is threadedly connected to the crosscutting knife shaft 2, one end of the crosscutting knife shaft 1 is connected to the crosscutting motor on the side wall of the crosscutting knife holder, and the other end is connected to the crosscutting driving gear, the crosscutting driving gear is meshed with the crosscutting driven gear on the opposite side of the crosscutting motor, and the crosscutting driven gear is connected to the crosscutting knife shaft 2.

3. A processing system for preparing a degradable plastic bag according to claim 1, characterized in that: The thermoplastic sealing knife of the thermoplastic sealing mechanism is connected to the thermoplastic sealing knife frame through a plurality of thermoplastic sealing knife fixing rods, the driving cam at the bottom of the thermoplastic sealing knife frame is connected to the thermoplastic sealing knife driving shaft, and the thermoplastic sealing positioning plate connected to the side wall of the fixing seat is located below the thermoplastic sealing knife.

4. A processing system for preparing a degradable plastic bag according to claim 1, characterized in that: A longitudinal cutting positioning plate is arranged below the longitudinal cutting knife of the longitudinal cutting mechanism. The longitudinal cutting positioning plate is connected to the side wall of the fixing seat. The longitudinal cutting knife is connected to the longitudinal cutting knife fixing frame through the longitudinal cutting cylinder.

5. A processing system for preparing a degradable plastic bag according to claim 1, characterized in that: A punching plate is provided above the punching table of the punching mechanism, and the punching plate is connected to the punching cylinder. A finishing brush is provided in front of the punching table, and a bag counting brush is provided in front of the finishing brush. A bag counting synchronous wheel 1 is provided on the bag counting shaft of the bag counting brush. The bag counting synchronous wheel 1 is connected to the bag counting synchronous wheel 2 through a bag counting synchronous belt, the bag counting synchronous wheel 2 is connected to the bag counting motor, and the bag counting motor is connected to the bag counting frame.

6. A processing system for preparing a degradable plastic bag according to claim 5, characterized in that: The first folding mechanism is located behind the punching table, the folding fixing clamp is connected to the first folding cylinder, a folding fixing plate is provided below the folding fixing clamp, the folding fixing plate is connected to the folding fixing cylinder below, and the first folding movable seat of the folding clamp is connected to the synchronous belt through a synchronous connecting block.

7. A processing system for preparing a degradable plastic bag according to claim 6, characterized in that: A moving cylinder 1 is provided in the fixing groove of the second folding mechanism, and the end of the moving cylinder 1 away from the fixing groove is connected to the folding fixing plate 2. A folding fixing frame is provided in the center of the folding fixing plate 2. The folding fixing frame is connected to the folding fixing clamp 2 through the folding fixing cylinder 2. The folding fixing clamp 2 is a Z-shaped structure. A folding clamp 2 is provided above the folding fixing frame 2, and the folding clamp 2 is connected to the moving cylinder 2 of the second folding moving seat.

8. A processing system for preparing a degradable plastic bag according to claim 7, characterized in that: The structure of folding clamp 2 is the same as that of folding clamp 1. The end of folding clamp 1 is hinged to folding cylinder 1 in the middle of the side wall of folding base 1, the other end of folding cylinder 1 is hinged to the end of the side wall of folding base 1, and the front end of folding base 1 contacts the top of folding clamp 1.

9. A processing system for preparing a degradable plastic bag according to claim 1, characterized in that: A flip shaft is provided on one side of the flip plate close to the second conveyor belt, a flip motor connected to the flip shaft is connected to the side wall of the fixing seat, and the flip plate is in an L-shaped structure.

10. A processing system for preparing a degradable plastic bag according to claim 1, characterized in that: A storage movable plate is provided at the bottom of the storage slot of the storage mechanism, the bottom of the storage movable plate is connected to the storage cylinder, and the storage slot is a U-shaped slot.

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