Punching apparatus for paper-plastic bag production and method thereof

Abstract

The application discloses paper plastic bag production punching equipment and a method thereof, which is applied to the technical field of paper plastic bag punching and comprises a support, one side of the support is fixed with a side plate, the left and right sides of the side plate are respectively connected with a first winding drum and a second winding drum through bearings, paper plastic bag raw materials are wound on the first winding drum, paper plastic bag waste after punching is wound on the second winding drum, the top of the side plate is fixed with a bearing table, the top of the bearing table is provided with a punching assembly and a pressing assembly, the middle of the support is provided with a bearing assembly, the bearing assembly comprises two groups of third winding drums and first connecting seats, the first connecting seats are fixed on the left and right sides of the bearing table, a first rolling shaft is connected between the first connecting seats through a bearing, the two groups of third winding drums are connected with the side plate through bearings, and long grooves are formed on the left and right sides of the bearing table; and the application conveniently and efficiently realizes the function of improving punching quality.

Description

Technical Field

[0001] This invention relates to the field of die-cutting technology for paper-plastic bag production, and is entitled "Die-cutting equipment and method for paper-plastic bag production". Background Technology

[0002] Paper-plastic composite bags are made of plastic and kraft paper. The plastic layer typically uses polypropylene (PP) or polyethylene (PE) as the base material, woven into flat yarns, while the kraft paper is made of refined composite kraft paper. They are characterized by high strength, good water resistance, and an attractive appearance. They are one of the most popular packaging materials currently available, widely used in industries such as plastic raw materials, cement, feed, chemicals, and fertilizers. The first step in the processing and production of paper-plastic bags is to laminate the paper tape and plastic film tape to form a paper-plastic bag for easy rolling, transportation, and subsequent processing. The processed paper-plastic bags can then be cut and processed according to the specific shape required for packaging using appropriate forming machines to obtain paper-plastic composite bags of the corresponding size and shape.

[0003] Paper-plastic bags are typically cut to the appropriate size using paper-plastic bag die-cutting equipment. However, existing die-cutting equipment makes it difficult to adjust the tension of the paper-plastic bag in real time during die-cutting, which can easily affect the die-cutting quality. In addition, it is not possible to detect in real time whether the die-cutting is completed. Therefore, it is necessary to provide a die-cutting equipment and method for paper-plastic bag production, which can improve the quality of die-cut paper-plastic bags. Summary of the Invention

[0004] The purpose of this invention is to provide a die-cutting device and method for paper-plastic bag production, so as to solve the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a punching device and method for paper-plastic bag production, comprising a support, a side plate fixed on one side of the support, a first roll and a second roll respectively connected by bearings on the left and right sides of the side plate, the first roll being wound with paper-plastic bag raw material, the second roll being wound with paper-plastic bag waste material after punching, a support platform fixed on the top of the side plate, and a punching component and a pressing component provided on the top of the support platform;

[0006] The support frame is provided with a support assembly in the middle. The support assembly includes two sets of third drums and a first connecting seat. The first connecting seat is fixed to both sides of the support platform. A first roller is connected between the first connecting seats by a bearing. The two sets of third drums are connected to the side plates by bearings. Long grooves are opened on the left and right sides of the support platform.

[0007] Tensioning components are provided on both the left and right sides of the support assembly. Each tensioning component includes two sets of threaded rods and a mounting plate. The mounting plate is fixed to the bottom of the bracket. The two sets of threaded rods are connected to the mounting plate by bearings. The tops of the two sets of threaded rods are connected to the support platform by bearings. Lifting blocks are threaded onto the surfaces of the two sets of threaded rods. A second roller is connected between the lifting blocks by bearings. Two sets of second connecting seats are fixed on the support platform. Two sets of third rollers are connected between the second connecting seats by bearings.

[0008] In one embodiment, a collection box is provided at the bottom of the support.

[0009] In one embodiment, the other side of the side plate is connected to a bearing with four sets of transmission gears. The two middle sets of transmission gears are fixedly connected to the third drum, and the transmission gears on the left and right sides are fixedly connected to the first drum and the second drum, respectively. A transmission rack connects the four sets of transmission gears. A first drive is provided on one side of the bracket, and the first drive is fixedly connected to one of the sets of transmission gears.

[0010] In one embodiment, the pressing assembly includes a first fixed plate, four sets of first support rods, and a third connecting seat. Two sets of the third connecting seats are fixed to the top of the support platform. A lower pressing shaft is connected to the middle bearing of the two sets of third connecting seats. The four sets of first support rods are fixed above the support platform. The first fixed plate is fixed to the top of the first support rods. A second drive is fixed to the top of the first fixed plate. A lifting plate is slidably connected to the middle of the four sets of first support rods. The output end of the second drive is fixedly connected to the lifting plate. An upper pressing shaft is connected to the bottom bearing of the lifting plate. The upper pressing shaft is located above the lower pressing shaft.

[0011] In one embodiment, the punching assembly includes a second fixed plate, four sets of second support rods, and a stamping plate. The stamping plate is slidably connected to the four sets of second support rods. The second fixed plate is fixed to the top of the four sets of second support rods. The four sets of second support rods are fixed to the support platform. A third drive is fixed to the top of the second fixed plate. The output shaft of the third drive is fixedly connected to the stamping plate. A stamping block is fixed to the bottom of the stamping plate.

[0012] In one embodiment, a pushing component is provided on both sides of the stamping plate, the pushing component includes a fourth drive, the fourth drive is fixed to the top of the stamping plate, a placement groove is provided on both sides of the bottom of the stamping block, a push plate is provided inside the placement groove, the push plate is fixedly connected to the output end of the fourth drive, a cutting knife is fixed around the stamping block, and two sets of glue sheets and a camera are attached to the bottom center of the stamping block.

[0013] Compared with the prior art, the beneficial effects achieved by the present invention are: by setting up a pushing component and a tensioning component, the present invention ensures both the tension and the quality of the paper-plastic bag during the punching of raw materials, thus ensuring the completion of the punching process. Attached Figure Description

[0014] The technical solution and other beneficial effects of this application will become apparent from the following detailed description of specific embodiments in conjunction with the accompanying drawings.

[0015] In the attached diagram:

[0016] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0017] Figure 2 This is a front view of the overall structure of the present invention;

[0018] Figure 3 This is a three-dimensional rear view of the overall structure of the present invention;

[0019] Figure 4 This is an enlarged schematic diagram of region A of the present invention;

[0020] Figure 5 This is a two-dimensional schematic diagram of the push component of the present invention.

[0021] Figure 6 This is a two-dimensional schematic diagram of the stamping block of the present invention.

[0022] In the diagram: 1. Bracket; 2. Collection box; 3. Second drum; 4. First drum; 5. Third drum; 6. Support platform; 7. Mounting plate; 8. Threaded rod; 9. Lifting block; 10. Second connecting seat; 11. Third roller; 12. First connecting seat; 13. First roller; 14. Second roller; 15. Third drive; 16. Second drive; 17. Stamping plate; 18. Second support rod; 19. Second fixing plate; 20. Stamping block; 21. Spring; 22. First support rod; 23. First fixing plate; 24. Lifting plate; 25. Upper pressure shaft; 26. Lower pressure shaft; 27. Cutting knife; 28. Push plate; 29. ​​Glue sheet; 30. Fourth drive; 31. Camera; 32. Transmission gear. Detailed Implementation

[0023] The following disclosure provides many different embodiments or examples for implementing different structures of this application. To simplify the disclosure, specific examples of components and arrangements are described below. Of course, these are merely examples and are not intended to limit the scope of this application. Furthermore, reference numerals and / or letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, various specific examples of processes and materials are provided in this application, but those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0024] like Figure 1 As shown, the present invention provides a technical solution: a punching device and method for producing paper-plastic bags, comprising a support 1, a side plate fixed on one side of the support 1, and a first roll 4 and a second roll 3 respectively connected to the left and right sides of the side plate by bearings. The first roll 4 is wound with paper-plastic bag raw material, and the second roll 3 is wound with paper-plastic bag waste after punching. The waste can be recycled by winding it up. A support platform 6 is fixed on the top of the side plate. A punching component and a pressing component are provided on the top of the support platform 6. When using the punching device, the paper-plastic bag raw material on the first roll 4 is pulled out, passes under the punching component and the pressing component, and is then wound onto the second roll 3 to recycle the remaining paper-plastic bags.

[0025] A support assembly is provided in the middle of the support 1. The support assembly includes two sets of third rollers 5 and a first connecting seat 12. The first connecting seat 12 is fixed to both sides of the support platform 6. A first roller 13 is connected between the first connecting seats 12 by a bearing. The two sets of third rollers 5 are connected to the side plates by bearings. Long slots are opened on the left and right sides of the support platform 6. The support blade is wound on the third roller 5 so that the support blade passes through the long slot, passes through the first roller 13, and then passes over the support platform 6, so that the support blade is below the paper-plastic bag raw material. By driving the third rotating drum 5, the cut paper-plastic bag is conveniently transported to the bottom through the support blade.

[0026] like Figure 2As shown, tensioning components are provided on both the left and right sides of the support assembly. Each tensioning component includes two sets of threaded rods 8 and a mounting plate 7. The mounting plate 7 is fixed to the bottom of the bracket 1. The two sets of threaded rods 8 are connected to the mounting plate 7 by bearings. The tops of the two sets of threaded rods 8 are connected to the support platform 6 by bearings. Lifting blocks 9 are threadedly connected to the surfaces of the two sets of threaded rods 8. A second roller 14 is connected between the lifting blocks 9 by bearings. Two sets of second connecting seats 10 are fixed on the support platform 6. Two sets of third rollers 11 are connected between the second connecting seats 10 by bearings. When the paper-plastic bag material is pulled out from the first roll 4, the paper-plastic bag material is wound around the left third roller 11, then through the second roller 14, then through the right third roller 11, then below the punching assembly and the pressing assembly, then through the left third roller 11 on the right, then through the right second roller 14, then through the right third roller 11 on the right side of the support platform 6, and finally wound around the second roll 3.

[0027] It should be noted that the paper-plastic bag raw material is always above the blade. The two sets of threaded rods 8 are externally driven, which can make the threaded rods 8 rotate on the mounting plate 7. When the threaded rods 8 rotate, the lifting block 9 will move up and down on the threaded rods 8, which will play a tensioning role on the paper-plastic bag raw material.

[0028] like Figure 3 As shown, the other side of the side plate is connected to a bearing with four sets of transmission gears 32. The two middle sets of transmission gears 32 are fixedly connected to the third drum 5, and the transmission gears 32 on the left and right sides are fixedly connected to the first drum 4 and the second drum 3 respectively. A transmission rack (not shown in the figure) is connected between the four sets of transmission gears 32. A first drive (not shown in the figure) is provided on one side of the bracket 1. The first drive is fixedly connected to one set of transmission gears 32. By driving one set of transmission gears 32 to rotate, the transmission rack drives the four sets of transmission gears 32 to rotate simultaneously, so that the first drum 4, the second drum 3, and the third drum 5 run synchronously, providing a power source for transporting paper and plastic bag raw materials.

[0029] like Figure 4As shown, the pressing assembly includes a first fixed plate 23, four sets of first support rods 22, and a third connecting seat. Two sets of third connecting seats are fixed to the top of the support platform 6. A lower pressing shaft 26 is connected to the middle bearing of the two sets of third connecting seats. The paper-plastic bag raw material and the cutting blade are both located above the lower pressing shaft 26. The four sets of first support rods 22 are fixed to the top of the support platform 6. The first fixed plate 23 is fixed to the top of the first support rods 22. A second drive 16 is fixed to the top of the first fixed plate 23. A lifting plate 24 is slidably connected to the middle of the four sets of first support rods 22. The output end of the second drive 16 is fixedly connected to the lifting plate 24. An upper pressing shaft 25 is connected to the bottom bearing of the lifting plate 24. The upper pressing shaft 25 is located above the lower pressing shaft 26. When the paper-plastic bag raw material and the cutting blade pass through the upper pressing shaft 25 and the lower pressing shaft 26, the cooperation of the upper pressing shaft 25 and the lower pressing shaft 26 can flatten the paper-plastic bag raw material and the cutting blade, improving the subsequent punching quality.

[0030] The punching assembly includes a second fixed plate 19, four sets of second support rods 18, and a punching plate 17. The punching plate 17 is slidably connected to the four sets of second support rods 18. The second fixed plate 19 is fixed to the top of the four sets of second support rods 18. The four sets of second support rods 18 are fixed to the support platform 6. A third drive 15 is fixed to the top of the second fixed plate 19. The output shaft of the third drive 15 is fixedly connected to the punching plate 17. A punching block 20 is fixed to the bottom of the punching plate 17. When the third drive 15 is activated, the punching plate 17 descends, and the punching block 20 contacts the paper-plastic bag raw material to punch the paper-plastic bag. Springs 21 are fitted at the bottom of the four sets of second support rods 18 to cushion the punching block 20.

[0031] like Figure 5 As shown, the stamping plate 17 is provided with pushing components on both sides. The pushing components include a fourth drive 30, which is fixed to the top of the stamping plate 17. The bottom sides of the stamping block 20 are provided with placement slots. A push plate 28 is provided inside the placement slot. The push plate 28 is fixedly connected to the output end of the fourth drive 30. The fourth drive 30 is activated to move the push plate 28 out of the placement slot. A cutting blade 27 is fixed around the stamping block 20. The cutting blade 27 forms a square to conform to the shape of the paper-plastic bag to be cut. When the stamping block 20 descends, the cutting blade 27 cuts the raw material of the paper-plastic bag.

[0032] like Figure 6 As shown, two sets of adhesive sheets 29 and a camera are attached to the bottom center of the stamping block 20. When the cutting blade 27 finishes its work, as the stamping block 20 is lifted upward, the paper-plastic bag that has been cut off will be stuck to the adhesive sheets 29. At this time, the fourth drive 30 is activated, which makes the push plate 28 move away from the placement slot and push the stuck paper-plastic bag down, so that it falls on the support blade and falls into the collection box 2 with the support blade, completing one cutting operation. At the same time, the camera takes pictures to see if the paper-plastic bag has been completely pushed off.

[0033] A controller is installed on one side of the punching equipment. The controller is electrically connected to the camera, the first drive, the second drive 16, the third drive 15 and the fourth drive 30. The operator sets the operating steps of the punching equipment in the controller.

[0034] The blade is made of metal and has a hardness greater than that of a punching blade by 27.

[0035] The die-cutting method for paper-plastic bag production includes the following steps:

[0036] S1. Start the first drive to control the first roll 4, the second roll 3, and the third roll 5 to run synchronously, driving the paper-plastic bag raw materials and the blade to move.

[0037] S2. When punching is required, the controller first drive pauses and then the second drive 16 is started, pressing down the lifting plate 24, so that the upper pressure shaft 25 and the lower pressure shaft 26 squeeze the paper-plastic bag raw material and the blade holder, fixing the two.

[0038] S3. The tension of the paper-plastic bag raw material is adjusted in real time through the tensioning component to ensure the die-cutting effect;

[0039] Specifically, a pressure sensor is provided on the surface of the third roller 11. The pressure sensor is electrically connected to the controller. The pressure sensor detects the pressure of the paper-plastic bag raw material when it passes over the surface of the third roller 11. The controller presets a pressure value 'a'. When the pressure value detected by the pressure sensor is less than 'a', it indicates that the paper-plastic bag raw material is in a relaxed state. At this time, the controller transmits a signal to the external drive, causing the threaded rod 8 to rotate, thereby driving the second roller 14 to rise and fall, thus tensioning the paper-plastic bag. The rotation of the threaded rod 8 is stopped when the pressure sensor measures a pressure greater than 'a'. This step can further ensure the tension of the paper-plastic bag, making it taut during subsequent punching, which can achieve better punching results.

[0040] S4. Start the third drive 15 to control the stamping block 20 to drive the cutting knife 27 to cut the paper-plastic bag into the desired shape;

[0041] S5. The die-cutting is completed. The controller controls the third drive 15 to retract and stick the die-cut paper-plastic bag to the glue sheet 29. Then, the controller controls the fourth drive 30 to extend and push the paper-plastic bag down so that it falls on the support blade. The camera 31 determines whether the paper-plastic bag is completely die-cut.

[0042] Specifically, when the adhesive sheet 29 sticks the paper-plastic bag, the third drive 15 retracts, and the camera 31 captures in real time the state of the paper-plastic bag being punched as it retracts with the punching block 20. When the camera 31 detects that the paper-plastic bag moves upward with the punching block 20 and pulls the paper-plastic bag material upward as well, it indicates that the punching is not done properly. The controller continues to control the third drive 15 to extend for a second punching. During the second punching, the S3 step is repeated, and the tension of the paper-plastic bag is adjusted in real time. After adjustment, the punching continues. After the punching is completed, the camera 31 continues to determine whether the punching is done properly. If the punching is successful, the work continues. If the second punching is still unsuccessful, it indicates that there is a problem with the punching knife 27. Therefore, the controller transmits a signal to the controller, causing the controller to alarm, so that the staff can replace the punching knife 27. When the camera 31 detects that the paper-plastic bag moves upward with the punching block 20 but does not pull the surrounding paper-plastic bag material upward, it indicates that the punching is successful. At this time, the controller controls the fourth drive 30 to push the paper-plastic bag down so that it falls on the support blade.

[0043] Furthermore, when the paper-plastic bag raw material passes under the camera 31, the camera 31 captures whether there are wrinkles on the surface of the paper-plastic bag. If there are wrinkles, the controller controls the first drive to rotate in the opposite direction, driving the wrinkled area to pass through the upper pressure shaft 25 and the lower pressure shaft 26. The controller controls the first drive to move forward and backward to smooth out the wrinkled area. During forward and backward movement, the tension of the tensioning component is adjusted in real time to ensure that the paper-plastic bag is in a taut state. Through this step, while ensuring the die-cutting quality, the surface of the paper-plastic bag can also be guaranteed to be glossy, thereby improving die-cutting efficiency and production quality.

[0044] S6. When the cut paper-plastic bag falls onto the support blade, the controller controls the second drive 16 to lift, so that the upper pressure shaft 25 and the lower pressure shaft 26 are released, and controls the first drive to start, so that the paper-plastic bag raw material and the support blade move. The cut paper-plastic bag moves with the support blade and falls into the collection box 2 to collect the cut paper-plastic bag.

[0045] S7. The remaining material of the paper-plastic bag after being punched is collected by the second roll 3 for unified recycling.

[0046] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linkage" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between the components; they can refer to a direct connection, the internal communication between two components, or the interaction between two components. Those skilled in the art can understand the meaning of the above terms in this application according to the specific circumstances.

[0047] The foregoing has provided a detailed description of a die-cutting device and method for producing paper-plastic bags according to the embodiments of this application. Specific examples have been used to illustrate the principles and implementation methods of this application. The descriptions of the above embodiments are only for the purpose of helping to understand the technical solutions and core ideas of this application. Those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A die-cutting device for paper-plastic bag production, comprising a support frame (1), characterized in that: A side plate is fixed on one side of the bracket (1), and a first roll (4) and a second roll (3) are respectively connected to the left and right sides of the side plate by bearings. The first roll (4) is wound with paper-plastic bag raw material, and the second roll (3) is wound with paper-plastic bag waste after punching. A support platform (6) is fixed on the top of the side plate, and a punching component and a pressing component are provided on the top of the support platform (6). The support (1) is provided with a support assembly in the middle. The support assembly includes two sets of third drums (5) and a first connecting seat (12). The first connecting seat (12) is fixed on both sides of the support platform (6). The first connecting seat (12) is connected to the first roller (13) by a bearing. The two sets of third drums (5) are connected to the side plate by a bearing. The support platform (6) has long grooves on the left and right sides. Tensioning components are provided on both the left and right sides of the support assembly. Each tensioning component includes two sets of threaded rods (8) and a mounting plate (7). The mounting plate (7) is fixed to the bottom of the bracket (1). The two sets of threaded rods (8) are connected to the mounting plate (7) by bearings. The top of the two sets of threaded rods (8) is connected to the bearing platform (6) by bearings. Lifting blocks (9) are threadedly connected to the surfaces of the two sets of threaded rods (8). A second roller (14) is connected between the lifting blocks (9) by bearings. Two sets of second connecting seats (10) are fixed on the bearing platform (6). Two sets of third rollers (11) are connected between the second connecting seats (10) by bearings. The punching assembly includes a second fixed plate (19), four sets of second support rods (18) and a stamping plate (17). The stamping plate (17) and the four sets of second support rods (18) are slidably connected. The second fixed plate (19) is fixed to the top of the four sets of second support rods (18). The four sets of second support rods (18) are fixed to the support platform (6). A third drive (15) is fixed to the top of the second fixed plate (19). The output shaft of the third drive (15) is fixedly connected to the stamping plate (17). A stamping block (20) is fixed to the bottom of the stamping plate (17). Pushing components are provided on both sides of the stamping plate (17). The pushing components include a fourth drive (30). The fourth drive (30) is fixed to the top of the stamping plate (17). Placement slots are provided on both sides of the bottom of the stamping block (20). A push plate (28) is provided inside the placement slot. The push plate (28) is fixedly connected to the output end of the fourth drive (30). A cutting knife (27) is fixed around the stamping block (20). Two sets of glue sheets (29) and a camera are attached to the bottom center of the stamping block (20).

2. The die-cutting equipment for paper-plastic bag production according to claim 1, characterized in that: A collection box (2) is provided at the bottom of the support (1).

3. The die-cutting equipment for paper-plastic bag production according to claim 2, characterized in that: The other side of the side plate is connected to a bearing with four sets of transmission gears (32). The two middle sets of transmission gears (32) are fixedly connected to the third drum (5). The transmission gears (32) on the left and right sides are fixedly connected to the first drum (4) and the second drum (3) respectively. A transmission rack is connected between the four sets of transmission gears (32). A first drive is provided on one side of the bracket (1). The first drive is fixedly connected to one of the sets of transmission gears (32).

4. The die-cutting equipment for paper-plastic bag production according to claim 3, characterized in that: The pressing assembly includes a first fixed plate (23), four sets of first support rods (22) and a third connecting seat. The third connecting seat is provided in two sets and fixed to the top of the support platform (6). The middle bearing of the two sets of third connecting seats is connected to a lower pressing shaft (26). The four sets of first support rods (22) are fixed above the support platform (6). The first fixed plate (23) is fixed to the top of the first support rods (22). The top of the first fixed plate (23) is fixed with a second drive (16). The middle of the four sets of first support rods (22) is slidably connected with a lifting plate (24). The output end of the second drive (16) is fixedly connected to the lifting plate (24). The bottom bearing of the lifting plate (24) is connected to an upper pressing shaft (25). The upper pressing shaft (25) is located above the lower pressing shaft (26).

5. A die-cutting method for paper-plastic bag production, based on the die-cutting equipment for paper-plastic bag production as described in claim 4, characterized in that: Includes the following steps: S1. Start the first drive to control the first roll (4), the second roll (3), and the third roll (5) to run synchronously, driving the paper-plastic bag raw materials and the blade to move; S2. When punching, the controller pauses the first drive and then starts the second drive (16), presses down the lifting plate (24), so that the upper pressure shaft (25) and the lower pressure shaft (26) squeeze the paper-plastic bag raw material and the blade, and fix the two. S3. The tension of the paper-plastic bag raw material is adjusted in real time through the tensioning component to ensure the die-cutting effect; S4. Start the third drive (15) to control the stamping block (20) to drive the cutting knife (27) to cut the paper-plastic bag into the desired shape; S5. After the punching is completed, the controller controls the third drive (15) to shrink and stick the punched paper-plastic bag to the glue sheet (29). Then, the controller controls the fourth drive (30) to extend and push the paper-plastic bag down so that it falls on the blade. The camera (31) determines whether the paper-plastic bag is completely punched. S6. When the cut paper-plastic bag falls onto the support blade, the controller controls the second drive (16) to lift, so that the upper pressure shaft (25) and the lower pressure shaft (26) are released, and controls the first drive to start, so that the paper-plastic bag raw material and the support blade move. The cut paper-plastic bag moves with the support blade and falls into the collection box (2) to collect the cut paper-plastic bag. S7. The remaining material of the paper-plastic bag after being punched is collected by the second roll (3) for unified recycling.

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