A packaging bag perforating device facilitating fragment recycling

Abstract

The utility model discloses a packaging bag punching device convenient to fragment recovery, including fixed base, guide rail and punch mechanism, be provided with position adjusting mechanism on the slide rail, the bottom rotation of position adjusting mechanism is connected with the fragment collection mechanism of fragment collection, the punch mechanism drops and utilizes fragment collection mechanism drive drive mechanism rotation, be fixedly installed with the tensioning mechanism on the punch mechanism. The utility model after the punch mechanism punch is completed, and the fragment collection mechanism that sets up can adsorb and collect the fragment under cutting, prevents the fragment and remains on the punch mechanism, and when the punch mechanism punch is completed and rises, the drive mechanism that sets up moves up, like this can make the fragment collection mechanism offset along the below position adjusting mechanism, like this can be convenient and use external mechanical claw etc. equipment to its concentrated collection, and can drive tensioning mechanism to drop when the punch mechanism is pressed and punches, like this can make the packaging bag roll present the tensioned state.

Description

Technical Field

[0001] This invention relates to the field of packaging bag processing technology, specifically to a packaging bag punching device that facilitates fragment recycling. Background Technology

[0002] Packaging bags are widely used tools for packaging, storing, and transporting goods. They can be made of various materials, such as plastic, paper, cloth, or other composite materials. Packaging bags not only protect products from external environmental influences (such as moisture, dust, oxygen, etc.), but also improve the product's display, facilitate sales, and make it convenient for consumers to carry and use.

[0003] During packaging bag processing, it is common practice to punch holes in the surface of the bag. This punching refers to creating openings at specific locations during the bag's production process, based on actual needs. This technique is primarily used to enhance the functionality or aesthetics of packaging, and its specific applications include, but are not limited to: Breathability: To improve air circulation inside packaging, holes are often made in food, clothing, and other packaging to prevent moisture buildup and reduce the risk of mold growth; Hanging display: Many product packages have a small hole designed at the top, which makes it easy for merchants to hang the products on the shelf with hooks, increasing the display effect and sales opportunities; Pressure relief holes: For some sealed packaging, especially products that may be subjected to changes in environmental pressure, such as packaging in air transport, perforation can help regulate the pressure difference between the inside and outside, protecting the integrity of the packaging and the safety of the contents.

[0004] In the processing of existing packaging bags, a packaging bag punching device is required. An existing technical solution (publication number CN115847921A) discloses a packaging bag punching machine, including a base with a lifting platform above it. A punching cutter is mounted on the lifting platform, and the cutter is detachably mounted on the lifting platform. Positioning components for positioning the packaging bag are also provided on the lifting platform, distributed around the cutter. This solution flattens and positions the packaging bag before punching, effectively positioning and fixing the bag, avoiding wrinkles that could cause punching deviation during the punching process, and greatly improving the punching quality. However, as can be seen from the above technical solution, existing technologies generate fragments during packaging bag punching. If these fragments persist, they can clog the cutter and affect subsequent punching results. Therefore, we propose a packaging bag punching device that facilitates fragment recycling. Summary of the Invention

[0005] The purpose of this invention is to provide a packaging bag punching device that facilitates fragment recycling, thereby solving the problem in the prior art where punching devices cannot collect the cut fragments in a concentrated manner.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a packaging bag punching device for easy fragment recycling, comprising two sets of fixed seats and a punching mechanism for punching holes in the packaging bag. Two sets of mounting slots are provided on the fixed seats, and two sets of slide rails are fixedly connected between the two sets of fixed seats. A position adjustment mechanism is provided on the slide rails to drive the punching mechanism to adjust its left and right positions. The punching mechanism is fixedly mounted on the position adjustment mechanism. A fragment collection mechanism for collecting residual fragments from punching is rotatably connected to the bottom of the position adjustment mechanism. The descent of the punching mechanism is driven by the fragment collection mechanism to rotate the drive mechanism. A tensioning mechanism for tensioning and positioning the packaging bag is fixedly mounted on the punching mechanism.

[0007] As a further description of the above technical solution: The position adjustment mechanism includes a first connecting seat, a sliding sleeve, a threaded sleeve, and a locking bolt. The sliding sleeve is slidably connected to the outside of the slide rail, and the first connecting seat is fixedly connected to the outside of the sliding sleeve. A threaded sleeve is fixedly installed on the first connecting seat at a position corresponding to the slide rail. A locking bolt is threadedly connected to the inside of the threaded sleeve, and the bottom of the locking bolt contacts the slide rail.

[0008] As a further description of the above technical solution: The drilling mechanism includes a lower positioning seat, a connecting frame, a support plate, a drive cylinder, a second connecting seat, and a cutting blade. A U-shaped connecting frame is fixedly connected to the top of the first connecting seat, and a support plate is fixedly connected to the top of the connecting frame. A lower positioning seat is fixedly connected to one side of the first connecting seat. A material drop groove is provided on the lower positioning seat. A drive cylinder is fixedly installed on the support plate. A second connecting seat is fixedly connected to the output end of the drive cylinder. A cutting blade is fixedly connected to the bottom of the second connecting seat at the position corresponding to the material drop groove.

[0009] As a further description of the above technical solution: The fragment collection mechanism includes a first connecting shaft, a connecting groove, a rotating frame, a collection frame, and a second connecting shaft. The first connecting shaft is fixedly installed at the bottom of the first connecting seat. A connecting groove is provided on the first connecting shaft. A rotating frame is rotatably connected to the outside of the first connecting shaft. A collection frame is fixedly connected to the top of the rotating frame at a position corresponding to the material drop chute. An air extraction pipe communicating with the collection frame is fixedly installed at the bottom of the rotating frame. A second connecting shaft is fixedly connected to one side of the rotating frame.

[0010] As a further description of the above technical solution: The driving mechanism includes a driving link, a driving seat, and a driving groove. The driving link is fixedly connected to one side of the second connecting seat, and the driving seat is fixedly connected to one end of the driving link. A "V"-shaped driving groove is opened on one side of the driving seat, and the second connecting shaft is disposed inside the "V"-shaped driving groove.

[0011] As a further description of the above technical solution: The tensioning mechanism includes a first connecting rod, a connecting plate, a second connecting rod, a pressure roller, a second limiting plate, and a spring. The first connecting rod is fixedly connected to both ends of the second connecting seat. A connecting plate is fixedly connected to the first connecting rod. Two sets of second connecting rods are slidably connected to the connecting plate. A pressure roller that contacts the packaging bag is fixedly connected to the bottom of the second connecting rod. A second limiting plate is fixedly connected to the top of the second connecting rod. A spring is fixedly connected to the bottom of the second limiting plate and outside the second connecting rod. The bottom of the spring is fixedly connected to the connecting plate.

[0012] As a further description of the above technical solution: A first limiting plate is fixedly connected to the bottom of the first connecting shaft, and a torsion spring is fixedly connected to the top of the first limiting plate and the bottom of the rotating frame, located outside the first connecting shaft.

[0013] As a further description of the above technical solution: The second connecting shaft is externally rotatably connected to a sleeve, and a rubber pad is fixedly installed on the top of the collecting frame.

[0014] As a further description of the above technical solution: The slide rail, lower positioning seat, second connecting seat, cutting blade, and pressure roller are all made of stainless steel.

[0015] Compared with the prior art, the present invention has the following beneficial effects: The fixed base and mounting groove provided in this invention can install and fix the entire device. Then, the roll of packaging bags that need to be punched can be guided and transported through multiple sets of slide rails. The position adjustment mechanism can make the punching mechanism move along the slide rails, so that punching can be performed on different positions of the packaging bag roll. Then, the punching mechanism can be used to punch the packaging bag roll. After punching is completed, the debris collection mechanism can absorb and collect the cut debris to prevent it from remaining on the punching mechanism. When the punching mechanism rises after punching, the drive mechanism moves upward, which allows the debris collection mechanism to shift below the position adjustment mechanism. This makes it easy to collect the debris using external mechanical grippers or other equipment. When the punching mechanism presses down to punch, it can drive the tensioning mechanism to descend, which keeps the packaging bag roll in a taut state and prevents wrinkles from forming on the packaging bag roll, which could cause the punching position to deviate. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural schematic diagram of the present invention; Figure 2 This is a first perspective view of the structure of the present invention after the fixing base is removed; Figure 3 This is a second perspective view of the structure of the present invention after the fixing base is removed; Figure 4 This is a three-dimensional structural diagram of the first connecting shaft of the present invention.

[0017] In the diagram: 1. Fixed seat; 2. Mounting slot; 3. Slide rail; 4. Position adjustment mechanism; 5. Drilling mechanism; 6. Debris collection mechanism; 7. Drive mechanism; 8. Tensioning mechanism; 9. First connecting seat; 10. Sliding sleeve; 11. Threaded sleeve; 12. Locking bolt; 13. Lower positioning seat; 14. Connecting frame; 15. Support plate; 16. Drive cylinder; 17. Second connecting seat; 18. Cutting blade; 19. Drive connecting rod; 20. Drive seat; 21. Drive slot; 22. First connecting shaft; 23. Connecting slot; 24. Rotating frame; 25. First limiting plate; 26. Torsion spring; 27. Collection frame; 28. Air extraction pipe; 29. ​​Second connecting shaft; 30. Sleeve; 31. First connecting rod; 32. Connecting plate; 33. Second connecting rod; 34. Pressure roller; 35. Second limiting plate; 36. Spring. Detailed Implementation

[0018] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. Example

[0019] Please see Figure 1-4This invention provides a technical solution: a packaging bag punching device for easy fragment recycling, comprising two sets of fixed seats 1 and a punching mechanism 5 for punching holes in the packaging bag. The fixed seats 1 are provided with two sets of mounting slots 2, and two sets of slide rails 3 are fixedly connected between the two sets of fixed seats 1. The slide rails 3 are provided with a position adjustment mechanism 4 for driving the punching mechanism 5 to adjust its left and right position. The punching mechanism 5 is fixedly installed on the position adjustment mechanism 4. The bottom of the position adjustment mechanism 4 is rotatably connected to a fragment collection mechanism 6 for collecting fragments remaining after punching by the punching mechanism 5. The descent of the punching mechanism 5 is driven by the fragment collection mechanism 6 to drive the drive mechanism 7 to rotate. A tensioning mechanism 8 for tensioning and positioning the packaging bag is fixedly installed on the punching mechanism 5.

[0020] The device is fixed in place by a fixed base 1 and a mounting slot 2. The roll of packaging bags to be punched can then be guided and transported via multiple sets of slide rails 3. The position adjustment mechanism 4 allows the punching mechanism 5 to move along the slide rails 3, enabling punching at different positions on the packaging bag roll. After punching, the fragment collection mechanism 6 collects the cut fragments to prevent them from remaining on the punching mechanism 5. When the punching mechanism 5 rises after punching, the drive mechanism 7 moves upward, causing the fragment collection mechanism 6 to shift below the position adjustment mechanism 4. This allows for convenient collection using external mechanical grippers or other equipment. When the punching mechanism 5 presses down to punch, it drives the tensioning mechanism 8 to descend, keeping the packaging bag roll taut and preventing wrinkles that could cause deviations in the punching position. Example

[0021] Please see Figure 1 and Figure 2 The position adjustment mechanism 4 includes a first connecting seat 9, a sliding sleeve 10, a threaded sleeve 11, and a locking bolt 12. The sliding sleeve 10 is slidably connected to the outside of the slide rail 3. The first connecting seat 9 is fixedly connected to the outside of the sliding sleeve 10. The threaded sleeve 11 is fixedly installed on the first connecting seat 9 at the position corresponding to the slide rail 3. The locking bolt 12 is threadedly connected to the inside of the threaded sleeve 11. The bottom of the locking bolt 12 is in contact with the slide rail 3.

[0022] When the position of the drilling mechanism 5 needs to be adjusted, the locking bolt 12 is rotated to move it upward along the threaded sleeve 11, so that the locking bolt 12 is away from the surface of the slide rail 3. Then the first connecting seat 9 and the slide sleeve 10 are adjusted along the slide rail 3. After the position adjustment is completed, the locking bolt 12 is rotated again to make it contact the slide rail 3, so that the position of the first connecting seat 9 and the drilling mechanism 5 can be fixed.

[0023] Please see Figure 1 , Figure 2 and Figure 3 The punching mechanism 5 includes a lower positioning seat 13, a connecting frame 14, a support plate 15, a drive cylinder 16, a second connecting seat 17, and a cutting blade 18. The top of the first connecting seat 9 is fixedly connected to a "U"-shaped connecting frame 14, and the top of the connecting frame 14 is fixedly connected to a support plate 15. The lower positioning seat 13 is fixedly connected to one side of the first connecting seat 9. A material drop groove is provided on the lower positioning seat 13. The drive cylinder 16 is fixedly installed on the support plate 15. The output end of the drive cylinder 16 is fixedly connected to the second connecting seat 17. The cutting blade 18 is fixedly connected to the bottom of the second connecting seat 17 at the position corresponding to the material drop groove.

[0024] When the packaging bag roll moves to the lower positioning seat 13 guided by the slide rail 3, the drive cylinder 16 drives the second connecting seat 17 and the cutting blade 18 to move down. In this way, the cutting blade 18 can be used to cut and punch holes in the packaging bag. The cut packaging bag roll fragments can then be collected by the fragment collection mechanism 6.

[0025] Please see Figure 1 , Figure 2 , Figure 3 and Figure 4 The fragment collection mechanism 6 includes a first connecting shaft 22, a connecting groove 23, a rotating frame 24, a collection frame 27, and a second connecting shaft 29. The first connecting shaft 22 is fixedly installed at the bottom of the first connecting seat 9. The first connecting shaft 22 has a connecting groove 23. The rotating frame 24 is rotatably connected to the outside of the first connecting shaft 22. The collection frame 27 is fixedly connected to the top of the rotating frame 24 and at the position corresponding to the material drop chute. The bottom of the rotating frame 24 is fixedly installed with an air extraction pipe 28 communicating with the collection frame 27. The second connecting shaft 29 is fixedly connected to one side of the rotating frame 24.

[0026] After the cutting blade 18 completes the cutting of the packaging bag, the suction pipe 28 is connected to the external suction device. Then, the fragments stuck to the cutting blade 18 and the material drop groove on the lower positioning seat 13 are adsorbed and collected into the collection frame 27. The rotating frame 24 is rotatably connected through the first connecting shaft 22 and the connecting groove 23, which makes it convenient for the drive mechanism 7 to drive the rotating frame 24 to rotate out of the lower positioning seat 13.

[0027] Please see Figure 1 , Figure 2 and Figure 3The driving mechanism 7 includes a driving link 19, a driving seat 20, and a driving groove 21. The driving link 19 is fixedly connected to one side of the second connecting seat 17. The driving seat 20 is fixedly connected to one end of the driving link 19. A "V"-shaped driving groove 21 is opened on one side of the driving seat 20. The second connecting shaft 29 is disposed inside the "V"-shaped driving groove 21.

[0028] After the drive cylinder 16 completes the drilling, it drives the second connecting seat 17 and the cutting blade 18 to move upward. This allows the drive connecting rod 19 and the drive seat 20 to move upward, which in turn drives the "V"-shaped drive groove 21 to move upward. The upward "V"-shaped drive groove 21 then drives the second connecting shaft 29 to shift to one side, which causes the collection frame 27 to shift, making it easier to collect and recycle the fragments inside the collection frame 27 using external mechanical claws or similar devices.

[0029] Please see Figure 1 , Figure 2 , Figure 3 and Figure 4 The tensioning mechanism 8 includes a first connecting rod 31, a connecting plate 32, a second connecting rod 33, a pressure roller 34, a second limiting plate 35, and a spring 36. The first connecting rod 31 is fixedly connected to both ends of the second connecting seat 17. The connecting plate 32 is fixedly connected to the first connecting rod 31. Two sets of second connecting rods 33 are slidably connected to the connecting plate 32. The pressure roller 34, which contacts the packaging bag, is fixedly connected to the bottom of the second connecting rod 33. The second limiting plate 35 is fixedly connected to the top of the second connecting rod 33. The spring 36 is fixedly connected to the bottom of the second limiting plate 35 and outside the second connecting rod 33. The bottom of the spring 36 is fixedly connected to the connecting plate 32.

[0030] When the second connecting seat 17 descends to punch holes, the pressure roller 34 can contact the packaging bag. This allows the pressure roller 34 to keep the packaging bag roll taut. The spring 36 prevents the pressure roller 34 from descending continuously when the packaging bag roll is squeezed, thus preventing the packaging bag roll from being damaged by excessive compression. This also makes it easier for the punching mechanism 5 to punch holes without causing punching errors due to wrinkles in the packaging bag roll.

[0031] Please see Figure 1 , Figure 2 , Figure 3 and Figure 4 The bottom of the first connecting shaft 22 is fixedly connected to a first limiting plate 25. The top of the first limiting plate 25 and the bottom of the rotating frame 24, and located outside the first connecting shaft 22, are fixedly connected to a torsion spring 26. The torsion spring 26 can further drive the rotating frame 24 to reset, which can further reduce the driving dead angle.

[0032] Please see Figure 1 , Figure 2 and Figure 3 The second connecting shaft 29 is rotatably connected to a sleeve 30, and a rubber pad is fixedly installed on the top of the collection frame 27. The sleeve 30 provided on the outside of the second connecting shaft 29 can be conveniently driven to rotate by the drive groove 21.

[0033] Please see Figures 1-3 The slide rail 3, lower positioning seat 13, second connecting seat 17, cutting blade 18 and pressure roller 34 are all made of stainless steel. The stainless steel parts can prevent these parts from directly contacting the packaging bag roll and causing contamination.

[0034] In use, firstly, when the position of the punching mechanism 5 needs to be adjusted, rotate the locking bolt 12 to move it upward along the threaded sleeve 11, so that the locking bolt 12 is away from the surface of the slide rail 3. Then, adjust the position of the first connecting seat 9 and the sliding sleeve 10 along the slide rail 3. After the position adjustment is completed, rotate the locking bolt 12 again to make it contact the slide rail 3, thus completing the position fixation of the first connecting seat 9 and the punching mechanism 5. When the packaging bag roll moves to the position of the lower positioning seat 13 guided by the slide rail 3, the drive cylinder 16 drives the second connecting seat 17 and the cutting blade 18 to move downward. In this way, the cutting blade 18 can be used to cut and punch the packaging bag. The cut packaging bag roll fragments can then be collected by the fragment collection mechanism 6. After the cutting blade 18 completes the cutting of the packaging bag, the suction pipe 28 is connected to the external suction device. Then, the fragments adhering to the cutting blade 18 and the material drop groove on the lower positioning seat 13 are collected into the collection frame 27. The rotating frame 24 is connected to the first connecting shaft 22 and the connecting groove 2. 3. Rotary connection, which facilitates the drive mechanism 7 to drive the rotating frame 24 to rotate out of the lower positioning seat 13. After the drive cylinder 16 completes the drilling, it drives the second connecting seat 17 and the cutting blade 18 to move upward. This allows the drive linkage 19 and drive seat 20 to move upward. At this time, the "V"-shaped drive groove 21 can be driven upward. The upward "V"-shaped drive groove 21 can then drive the second connecting shaft 29 to shift to one side, which can shift the collection frame 27. This makes it easier to use external mechanical claws to collect and recycle the fragments inside the collection frame 27. When the second connecting seat 17 descends to drill, the pressure roller 34 can contact the packaging bag. This allows the pressure roller 34 to keep the packaging bag roll in a taut state. The spring 36 can prevent the pressure roller 34 from continuously descending when the packaging bag roll is squeezed, thus preventing the packaging bag roll from being damaged by excessive compression. This also makes it easier for the drilling mechanism 5 to drill due to wrinkles in the packaging bag roll, which can cause drilling errors.

[0035] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A packaging bag punching device for easy fragment recycling, comprising two sets of fixed seats (1) and a punching mechanism (5) for punching holes in the packaging bag, wherein two sets of mounting grooves (2) are provided on the fixed seats (1), and two sets of slide rails (3) are fixedly connected between the two sets of fixed seats (1), characterized in that: The slide rail (3) is provided with a position adjustment mechanism (4) for adjusting the left and right positions of the punching mechanism (5). The punching mechanism (5) is fixedly installed on the position adjustment mechanism (4). The bottom of the position adjustment mechanism (4) is rotatably connected to a fragment collection mechanism (6) for collecting the fragments left by the punching mechanism (5). The descent of the punching mechanism (5) is driven by the fragment collection mechanism (6) to rotate the drive mechanism (7). The punching mechanism (5) is fixedly installed with a tensioning mechanism (8) for tensioning and positioning the packaging bag.

2. The packaging bag perforating device for facilitating the recycling of fragments according to claim 1, characterized in that: The position adjustment mechanism (4) includes a first connecting seat (9), a sliding sleeve (10), a threaded sleeve (11), and a locking bolt (12). The sliding sleeve (10) is slidably connected to the outside of the slide rail (3). The first connecting seat (9) is fixedly connected to the outside of the sliding sleeve (10). The threaded sleeve (11) is fixedly installed on the first connecting seat (9) at the position corresponding to the slide rail (3). The locking bolt (12) is threadedly connected inside the threaded sleeve (11). The bottom of the locking bolt (12) is in contact with the slide rail (3).

3. A packaging bag perforating device for facilitating the recycling of the bag according to claim 2, characterized in that: The punching mechanism (5) includes a lower positioning seat (13), a connecting frame (14), a support plate (15), a drive cylinder (16), a second connecting seat (17), and a cutting blade (18). The top of the first connecting seat (9) is fixedly connected to a "U"-shaped connecting frame (14), and the top of the connecting frame (14) is fixedly connected to a support plate (15). The lower positioning seat (13) is fixedly connected to one side of the first connecting seat (9). A material drop groove is provided on the lower positioning seat (13). The drive cylinder (16) is fixedly installed on the support plate (15). The output end of the drive cylinder (16) is fixedly connected to the second connecting seat (17). The cutting blade (18) is fixedly connected to the bottom of the second connecting seat (17) and at the position corresponding to the material drop groove.

4. The packaging bag perforating device for facilitating the recycling of the fragments according to claim 3, characterized in that: The fragment collection mechanism (6) includes a first connecting shaft (22), a connecting groove (23), a rotating frame (24), a collection frame (27), and a second connecting shaft (29). The first connecting shaft (22) is fixedly installed at the bottom of the first connecting seat (9). The first connecting shaft (22) has a connecting groove (23) on it. The rotating frame (24) is rotatably connected to the outside of the first connecting shaft (22). The collection frame (27) is fixedly connected to the top of the rotating frame (24) at the position corresponding to the material drop chute. The bottom of the rotating frame (24) is fixedly installed with an air extraction pipe (28) communicating with the collection frame (27). The second connecting shaft (29) is fixedly connected to one side of the rotating frame (24).

5. A packaging bag perforating device for facilitating the recycling of the bag according to claim 4, characterized in that: The drive mechanism (7) includes a drive link (19), a drive seat (20) and a drive groove (21). The drive link (19) is fixedly connected to one side of the second connecting seat (17), and the drive seat (20) is fixedly connected to one end of the drive link (19). A "V"-shaped drive groove (21) is opened on one side of the drive seat (20), and the second connecting shaft (29) is disposed inside the "V"-shaped drive groove (21).

6. A packaging bag perforating device for facilitating the recycling of the bag according to claim 5, characterized in that: The tensioning mechanism (8) includes a first connecting rod (31), a connecting plate (32), a second connecting rod (33), a pressure roller (34), a second limiting plate (35), and a spring (36). The two ends of the second connecting seat (17) are fixedly connected to the first connecting rod (31). The first connecting rod (32) is fixedly connected to the first connecting rod (31). Two sets of second connecting rods (33) are slidably connected to the connecting plate (32). The bottom of the second connecting rod (33) is fixedly connected to the pressure roller (34) that contacts the packaging bag. The top of the second connecting rod (33) is fixedly connected to the second limiting plate (35). The bottom of the second limiting plate (35) and outside the second connecting rod (33) is fixedly connected to the spring (36). The bottom of the spring (36) is fixedly connected to the connecting plate (32).

7. A packaging bag perforating device for facilitating the recycling of the bag according to claim 6, characterized in that: The bottom of the first connecting shaft (22) is fixedly connected to a first limiting plate (25), and the top of the first limiting plate (25) is fixedly connected to the bottom of the rotating frame (24) and to the outside of the first connecting shaft (22) by a torsion spring (26).

8. The packaging bag perforating device for facilitating the recycling of the fragments according to claim 7, characterized in that: The second connecting shaft (29) is externally rotatably connected to a sleeve (30), and a rubber pad is fixedly installed on the top of the collection frame (27).

9. A packaging bag perforating device for facilitating the recycling of the bag according to claim 8, characterized in that: The slide rail (3), lower positioning seat (13), second connecting seat (17), cutting blade (18) and pressure roller (34) are all made of stainless steel.

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