A cutting device for packaging bag processing
By designing a cutting device suitable for packaging bag processing, and utilizing a combination of a limiting mechanism and a feeding mechanism, the problem of positional deviation during the cutting of packaging bags of different sizes was solved, achieving a stable and efficient cutting effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ANHUI JULI PACKAGING PROD CO LTD
- Filing Date
- 2025-06-06
- Publication Date
- 2026-05-26
AI Technical Summary
In the existing technology, the packaging bag cutting device cannot effectively limit the use of packaging bags of different sizes. As a result, the cutting device cannot be effectively used to cut packaging bags of various sizes, and the packaging bag position is prone to shift during the cutting process.
A cutting device comprising a base, a cutting mechanism, a limiting mechanism, and a feeding mechanism was designed. The spacing between the clamping plates is adjusted by a scale plate, and the position of the packaging bag is limited by a combination of a limiting rod and a spring. Combined with a combination of pressure rollers and transmission rollers, different motors are controlled to ensure the stability and accuracy of the packaging bag during the cutting process.
It enables stable cutting of packaging bags of various sizes, avoids positional shift of the packaging bags during the cutting process, and improves cutting quality and efficiency.
Smart Images
Figure CN224276469U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of packaging bag processing equipment, and specifically discloses a cutting device for packaging bag processing. Background Technology
[0002] Packaging bags are bags used to package various items and are widely used in daily life and industrial production. There are many types of packaging bags. According to different uses, packaging bags can be divided into food packaging bags and daily chemical packaging bags. According to different materials, packaging bags can be divided into plastic packaging bags, paper packaging bags, and composite packaging bags, etc. During the packaging bag processing, cutting devices are used to cut the packaging bags into the required sizes for subsequent processing.
[0003] Chinese patent CN218701703U discloses a paper packaging bag cutting production device, including a workbench. The front left and rear left sides of the workbench are provided with mounting grooves, and the upper right side of the workbench is provided with a trapezoidal groove. An installation mechanism is installed in both mounting grooves. A transmission roller is fixedly sleeved on the installation mechanism. A motor is fixedly installed at the front end of the installation mechanism. An installation frame is fixedly installed at the upper end of the workbench between the mounting grooves and the trapezoidal groove. Two electric push rods arranged in a front and rear position are inserted and fixedly installed on the installation frame. The output ends of the two electric push rods are fixedly installed with a cutting mechanism. The paper packaging bag cutting production device described in this utility model uses a transmission roller and rubber strip to move the paper pattern to the right on the worktable. The cutting mechanism can fix and cut the paper pattern, improving the cutting effect. The cut paper pattern falls into the collection box through a trapezoidal groove, making it convenient to collect and use. However, the above-mentioned cutting production device does not have a structure to restrict the position of packaging bags of different sizes during use. This causes the packaging bags to shift when cutting different sizes of packaging bags, which affects the cutting quality of the packaging bags to a certain extent. Therefore, in order to solve the above problems, this utility model proposes a cutting device for packaging bag processing. Utility Model Content
[0004] The present invention aims to provide a cutting device for packaging bag processing, which is applicable to the cutting of packaging bags of various sizes. It has a packaging bag position limiting mechanism to limit the position of the packaging bag, prevent the packaging bag from shifting, and ensure the quality of packaging bag cutting.
[0005] This utility model is achieved through the following technical solution:
[0006] A cutting device for processing packaging bags includes a base and a cutting mechanism. The cutting mechanism is disposed above the base, and a lower limit mechanism is disposed on one side of the cutting mechanism. A feeding mechanism is disposed at the end of the base away from the cutting mechanism. The base includes a support plate, and a mounting hole is disposed at one end of the support plate. Scale plates are disposed on both sides of the mounting hole. The cutting mechanism includes a mounting plate, and a cutter is connected to the lower center of the mounting plate. Multiple through holes arranged in a linear array are disposed on both sides of the mounting plate. A first limiting rod is disposed through the interior of each through hole. The limiting mechanism includes two symmetrically arranged... The feeding mechanism includes a clamping plate, with a slider connected to the bottom of each clamping plate. A bidirectional lead screw is threaded through the slider and connected to the bidirectional lead screw. A pressure plate is provided on the side of each clamping plate that is close to each other. A unidirectional lead screw is rotatably connected to the upper center of the pressure plate. The feeding mechanism includes a drive roller and a pressure roller. A pressure roller is provided above the drive roller. A first support shaft and a second support shaft are respectively threaded through the drive roller and the pressure roller. A third bracket is connected to both ends of the second support shaft. Two second telescopic rods are symmetrically connected above the third brackets. A fourth bracket is connected to the outer side of the second telescopic rods.
[0007] As a further feature of the above solution, the support plate has a cutting hole inside, and the vertical projection of the cutter coincides with the cutting hole, providing space for the cutter to cut through the packaging bag. The cutter is detachably connected to the mounting plate for easy installation and maintenance. Two first telescopic rods are symmetrically connected above the mounting plate, providing power for the up-and-down reciprocating movement of the cutter. A first bracket is connected to the outside of the first telescopic rod, providing stable support for the first telescopic rod. The two ends of the mounting plate pass through the two sides of the first bracket and are slidably connected to the first bracket, further restricting the movement direction of the mounting plate and the cutter, ensuring the quality of the cutter cutting the packaging bag.
[0008] As a further feature of the above solution, each of the multiple through holes is connected to a first connecting tube at the end furthest from the first telescopic rod. The first limiting rod passes through the interior of the first connecting tube, and a spring is sleeved on the outside of the first limiting rod. A stop plate is connected to the end of the first limiting rod furthest from the first connecting tube. A second connecting tube is provided at both ends of the spring. The two second connecting tubes are detachably connected to the first connecting tube and the stop plate, respectively, to facilitate the adjustment of the through holes through which the first limiting rod passes and the installation position of the above components according to the size of the packaging bag to be cut.
[0009] As a further feature of the above solution, a dust plug is provided inside the through hole to keep the unused through hole clean and facilitate the connection of the first limiting rod.
[0010] As a further feature of the above solution, the slider passes through the interior of the mounting hole and is slidably connected to the mounting hole. Support plates are provided on both sides below the mounting hole, and the upper part of the support plates is connected to the bearing plate. Limiting holes are provided inside the support plates. Limiting blocks are connected to both sides of the end of the slider away from the clamping plate. The limiting blocks pass through the interior of the limiting holes and are slidably connected to the limiting holes, which can restrict the movement direction of the two clamping plates and the connecting parts above them. The two ends of the bidirectional lead screw are rotatably connected to the two ends of the mounting hole, which can provide stable support for the bidirectional lead screw. One end of the bidirectional lead screw is connected to a first motor, which can provide power for the bidirectional lead screw to rotate and drive the slider and the components above it to move.
[0011] As a further feature of the above solution, a second bracket is connected above the clamping plate, and two second limiting rods are symmetrically connected above the pressure plate. The second limiting rods pass through the interior of the second bracket and are slidably connected to the second bracket, thus restricting the movement direction of the pressure plate. The one-way screw passes through the interior of the second bracket and is threadedly connected to the second bracket, allowing the distance between the pressure plate and the bearing plate to be adjusted by rotating the one-way screw. A buckle is connected to the outside of the one-way screw, and a notch is provided at one end of the second bracket near the buckle. A protrusion is provided below the side of the buckle near the notch. The protrusion slides with the notch, facilitating the installation and removal of the buckle. At the same time, the buckle can be used to fix the one-way screw after it stops rotating, keeping the one-way screw stable, preventing the pressure plate from moving, and ensuring the limiting effect of the pressure plate on the packaging bag.
[0012] As a further feature of the above scheme, the transmission roller is detachably connected to the first support shaft, which facilitates the installation and maintenance of the transmission roller. One end of the first support shaft is connected to a second motor, which can provide power for the rotation of the transmission roller. The end of the first support shaft away from the first motor is rotatably connected to the fourth bracket, which can provide support for the first support shaft and the transmission roller. Two support legs are connected to both ends of the lower part of the bearing plate, which can provide stable support for the bearing plate and the components above it. Two connecting grooves are symmetrically arranged on the side of the fourth bracket near the support legs. The connecting grooves slide with the support legs, which facilitates the alignment of the feeding mechanism with the base.
[0013] As a further feature of the above solution, a controller is provided on one side of the feeding mechanism to facilitate the control of the operation of relevant components in the device.
[0014] The second motor involved in this utility model is a servo motor.
[0015] The present invention has the following beneficial effects during use:
[0016] The use of two graduated plates in the bearing plate provides a reference for adjusting the distance between the two clamping plates. This allows for adjustment of the distance between the two clamping plates according to the size of the packaging bag to be cut, thereby limiting the position of the packaging bag and preventing it from shifting. The combination of two pressure plates and a one-way screw can limit the position of the packaging bag from above. The use of buckles can limit the rotation of the one-way screw after it stops rotating by the friction between the buckles and the one-way screw, as well as the friction between the protrusions and the notch, keeping the one-way screw and pressure plate stable and ensuring the limiting effect of the pressure plate on the packaging bag.
[0017] The combination of multiple through holes, a first limiting rod, and a spring in the cutting mechanism can adjust the through hole through which the first limiting rod passes and the first connecting pipe connected to the second connecting pipe at the upper end of the spring according to the width of the packaging bag to be cut, so as to ensure that the abutment at the lower end of the first limiting rod can press the packaging bag tightly before the packaging bag is cut.
[0018] The combination of the pressure roller and the second telescopic rod in the feeding mechanism can adjust the distance between the pressure roller and the transmission roller according to the thickness of the packaging bag to be cut. This ensures that the transmission roller can smoothly drive the pressure roller to rotate and achieve the purpose of moving and conveying the packaging bag, while avoiding excessive squeezing of the packaging bag by the pressure roller and the transmission roller, thus reducing packaging bag loss. Attached Figure Description
[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0020] Figure 1 This is a perspective view of the present invention;
[0021] Figure 2 This is a perspective view of the base in this utility model;
[0022] Figure 3 This is a perspective view of the cutting mechanism in this utility model;
[0023] Figure 4 This is a perspective view of the spring and the first limiting rod of this utility model;
[0024] Figure 5 This is a perspective view of the limiting mechanism in this utility model;
[0025] Figure 6 This is a perspective view of the combination of the pressure plate, unidirectional lead screw, and second bracket of this utility model;
[0026] Figure 7This is a perspective view of the combination of the buckle and the second bracket in this utility model;
[0027] Figure 8 This is a perspective view of the feeding mechanism in this utility model;
[0028] Figure 9 This is a burst-open perspective view of the transmission roller and pressure roller in this utility model.
[0029] In the diagram: 1. Base; 2. Cutting mechanism; 3. Limiting mechanism; 4. Feeding mechanism; 5. Controller; 11. Bearing plate; 111. Knife hole; 112. Mounting hole; 12. Support leg; 13. Scale plate; 21. First bracket; 22. Mounting plate; 221. Through hole; 222. First connecting pipe; 23. Spring; 231. Second connecting pipe; 24. Support plate; 25. First limiting rod; 26. Dust plug; 27. Cutting knife; 28. First telescopic rod; 31. Clamping plate; 32. Slide plate 321. Limiting block; 33. Support plate; 331. Limiting hole; 34. Bidirectional lead screw; 35. First motor; 36. Pressure plate; 361. Second limiting rod; 37. Unidirectional lead screw; 38. Buckle; 381. Protrusion; 39. Second bracket; 391. Notch; 41. Transmission roller; 411. First support shaft; 42. Second motor; 43. Pressure roller; 431. Second support shaft; 44. Third bracket; 45. Second telescopic rod; 46. Fourth bracket; 461. Connecting groove. Detailed Implementation
[0030] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.
[0031] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The following will refer to the appendix... Figures 1-9 This application will be described in detail with reference to the embodiments.
[0032] This embodiment discloses a cutting device for processing packaging bags, including a base 1 and a cutting mechanism 2. The cutting mechanism 2 is disposed above the base 1, and a lower limiting mechanism 3 is disposed on one side of the cutting mechanism 2. A feeding mechanism 4 is disposed at the end of the base 1 away from the cutting mechanism 2. The base 1 includes a support plate 11, and a mounting hole 112 is disposed at one end of the support plate 11. Scale plates 13 are disposed on both sides of the mounting hole 112. The cutting mechanism 2 includes a mounting plate 22, and a cutter 27 is connected to the lower center of the mounting plate 22. Multiple through holes 221 arranged in a linear array are disposed on both sides of the mounting plate 22. A first limiting rod 25 is disposed through the interior of each through hole 221. The limiting mechanism 3 includes two symmetrically arranged clamps. The feeding mechanism 4 includes a feed roller 41 and a pressure roller 43. The feed roller 43 is provided above the feed roller 41. The feed roller 41 has a first support shaft 411 and a second support shaft 431 respectively. The two ends of the second support shaft 431 are connected to a third bracket 44. The third bracket 44 has two second telescopic rods 45 symmetrically connected above the third bracket 44. The outer side of the second telescopic rod 45 is connected to a fourth bracket 46.
[0033] like Figure 1 and Figure 2 As shown, the bearing plate 11 has a cutting hole 111 inside. The vertical projection of the cutter 27 coincides with that of the cutting hole 111, providing space for the cutter 27 to cut through the packaging bag. The cutter 27 is detachably connected to the mounting plate 22, facilitating the installation and maintenance of the cutter 27. Two first telescopic rods 28 are symmetrically connected above the mounting plate 22, providing power for the up-and-down reciprocating movement of the cutter 27. A first bracket 21 is connected to the outside of the first telescopic rods 28, providing stable support for the first telescopic rods 28. The two ends of the mounting plate 22 pass through the two sides of the first bracket 21 and are slidably connected to the first bracket 21, further restricting the movement direction of the mounting plate 22 and the cutter 27, ensuring the quality of the cutter 27 in cutting the packaging bag.
[0034] like Figure 1 , Figure 3 and Figure 4As shown, the ends of the multiple through holes 221 away from the first telescopic rod 28 are all connected to the first connecting pipe 222. The first limiting rod 25 passes through the interior of the first connecting pipe 222. A spring 23 is sleeved on the outside of the first limiting rod 25. A stop plate 24 is connected to the end of the first limiting rod 25 away from the first connecting pipe 222. The two ends of the spring 23 are provided with second connecting pipes 231. The two second connecting pipes 231 are detachably connected to the first connecting pipe 222 and the stop plate 24, respectively, so as to facilitate the adjustment of the installation position of the above components according to the size of the packaging bag to be cut and the through holes 221 through which the first limiting rod 25 passes.
[0035] like Figure 3 As shown, a dust plug 26 is provided inside the through hole 221 to keep the unused through hole 221 clean and facilitate the connection of the first limiting rod 25.
[0036] like Figure 1 and Figure 5 As shown, the slider 32 passes through the interior of the mounting hole 112 and is slidably connected to the mounting hole 112. Support plates 33 are provided on both sides below the mounting hole 112. The upper part of the support plates 33 is connected to the bearing plate 11. Limiting holes 331 are provided inside the support plates 33. Limiting blocks 321 are connected to both sides of the end of the slider 32 away from the clamping plate 31. The limiting blocks 321 pass through the interior of the limiting holes 331 and are slidably connected to the limiting holes 331, which can restrict the movement direction of the two clamping plates 31 and the connecting parts above them. The two ends of the bidirectional lead screw 34 are rotatably connected to the two ends of the mounting hole 112, which can provide stable support for the bidirectional lead screw 34. One end of the bidirectional lead screw 34 is connected to a first motor 35, which can provide power for the bidirectional lead screw 34 to rotate and drive the slider 32 and the components above it to move.
[0037] like Figure 1 , Figure 5 , Figure 6 and Figure 7As shown, a second bracket 39 is connected above the clamping plate 31, and two second limiting rods 361 are symmetrically connected above the pressure plate 36. The second limiting rods 361 pass through the interior of the second bracket 39 and are slidably connected to the second bracket 39, thereby restricting the movement direction of the pressure plate 36. A one-way screw 37 passes through the interior of the second bracket 39 and is threadedly connected to the second bracket 39, allowing the distance between the pressure plate 36 and the bearing plate 11 to be adjusted by rotating the one-way screw 37. The outer side of 37 is connected to a buckle 38. The second bracket 39 is provided with a notch 391 at one end near the buckle 38. A protrusion 381 is provided on the lower side of the buckle 38 near the notch 391. The protrusion 381 slides with the notch 391, which facilitates the installation and removal of the buckle 38. At the same time, the buckle 38 can be used to fix the one-way screw 37 after it stops rotating, so that the one-way screw 37 remains stable, prevents the pressure plate 36 from moving, and ensures the limiting effect of the pressure plate 36 on the packaging bag.
[0038] like Figure 1 , Figure 8 and Figure 9 As shown, the transmission roller 41 is detachably connected to the first support shaft 411, which facilitates the installation and maintenance of the transmission roller 41. One end of the first support shaft 411 is connected to the second motor 42, which can provide power for the rotation of the transmission roller 41. The end of the first support shaft 411 away from the first motor 35 is rotatably connected to the fourth bracket 46, which can provide support for the first support shaft 411 and the transmission roller 41. Two support legs 12 are connected to both ends of the lower part of the bearing plate 11, which can provide stable support for the bearing plate 11 and the components above it. Two connecting grooves 461 are symmetrically arranged on the side of the fourth bracket 46 near the support legs 12. The connecting grooves 461 slide with the support legs 12, which facilitates the alignment of the feeding mechanism 4 with the base 1.
[0039] like Figure 1 As shown, a controller 5 is provided on one side of the feeding mechanism 4 to facilitate the control of the operation of related components in the device.
[0040] The cutting device for processing packaging bags disclosed in this embodiment, before use, passes one end of the packaging bag to be cut between the pressure roller 43 and the transmission roller 41, and places it between two clamping plates 31. The controller 5 is used to start the first motor 35, which drives the bidirectional lead screw 34 to rotate, causing the slider 32 to slide in the mounting hole 112. The limiting blocks 321 at both ends of the slider 32 slide in the two limiting holes 331 respectively. The distance between the two clamping plates 31 is adjusted. When the side of the two clamping plates 31 that is close to each other is about to approach the two sides of the packaging bag, and the packaging bag can be smoothly cut between the two clamping plates 31, the bag is ready to be cut. When the pressure roller 43 is pulled away from the direction of the pressure roller, the first motor 35 is turned off. At this time, the two pressure plates 36 are located on the upper sides of the packaging bag. The two buckles 38 are removed one by one. The one-way screw 37 is rotated to drive the second limit rod 361 to slide inside the second bracket 39, so that the pressure plate 36 moves towards the packaging bag. When the lower part of the pressure plate 36 is close to the upper surface of the packaging bag but does not contact the upper surface of the packaging bag, the one-way screw 37 is stopped, the buckles 38 are reset, the connection between the protrusion 381 and the notch 391 is restored, and the connection between the buckles 38 and the one-way screw 37 is restored, so that the one-way screw 37 and the pressure plate 36 remain stable.
[0041] Determine the through hole 221 through which the first limiting rod 25 needs to pass according to the size of the packaging bag to be cut. After determining the size, connect the second connecting tube 231 at one end of the spring 23 to the first connecting hole at one end of the target through hole 221. Pass the first limiting rod 25 through the second connecting tube 231 away from the first connecting tube 222, the spring 23, the first connecting tube 222, and the through hole 221 in sequence. Then connect the abutment plate 24 to the second connecting tube 231 away from the first connecting tube 222. At this point, the first limiting rod 25 and the abutment plate 24 are installed. Follow the same operation to install the remaining first limiting rods 25 and abutment plates 24, so that there are at least two first limiting rods 25 and abutment plates 24 on each side of the cutter 27, and the first limiting rods 25 on both sides are symmetrical about the center line of the mounting plate 22. Use the controller 5 to simultaneously control the extension and retraction of the two second telescopic rods 45, and adjust the pressure roller 43 and the transmission. The spacing between the moving rollers 41 is such that the second motor 42 starts and drives the transmission roller 41 to rotate. The transmission roller 41 can drive the pressure roller 43 synchronously and move the packaging bag between the transmission roller 41 and the pressure roller 43 towards the cutter 27. According to the cutting requirements of the packaging bag, the start and stop times of the second motor 42 are set on the controller 5 so that the packaging bag of a certain length can be extended under the cutter 27 during the interval between the start and stop of the second motor 42. The controller 5 controls the first telescopic rod 28 to extend and push the mounting plate 22, the cutter 27 and the abutment plate 24 and other components toward the packaging bag, so that the abutment plates 24 on both sides of the cutter 27 press the parts on both sides of the cutting line of the packaging bag, so that the cutter 27 cuts the packaging bag. After the cutting is completed, the first telescopic rod 28 retracts and drives the cutter 27 to return to its original position, which completes the cutting of a single packaging bag. Repeat the above operation to continue cutting the remaining packaging bags.
[0042] The components disclosed in this utility model for a cutting device used in packaging bag processing, including controller 5, bearing plate 11, support leg 12, scale plate 13, first bracket 21, mounting plate 22, first connecting pipe 222, spring 23, abutment plate 24, first limiting rod 25, dust plug 26, cutter 27, first telescopic rod 28, clamping plate 31, slider 32, support plate 33, bidirectional lead screw 34, first motor 35, pressure plate 36, second limiting rod 361, unidirectional lead screw 37, buckle 38, second bracket 39, transmission roller 41, first support shaft 411, second motor 42, pressure roller 43, second support shaft 431, third bracket 44, second telescopic rod 45, and fourth bracket 46, are all general standard parts or parts known to those skilled in the art. Their structure and principle can be learned by those skilled in the art through technical manuals or conventional experimental methods.
[0043] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A cutting apparatus for packaging bag processing, comprising a base and a cutting mechanism, characterized in that, A cutting mechanism is provided above the base, and a lower limit mechanism is provided on one side of the cutting mechanism. A feeding mechanism is provided at the end of the base away from the cutting mechanism. The base includes a support plate, and a mounting hole is provided at one end of the support plate. Scale plates are provided on both sides of the mounting hole. The cutting mechanism includes a mounting plate, and a cutter is connected to the lower center of the mounting plate. Multiple through holes arranged in a linear array are provided on both sides of the mounting plate. A first limiting rod is inserted through the interior of each through hole. The limiting mechanism includes two symmetrically arranged clamping plates. Each of the two clamping plates is connected to a slider at the bottom. A bidirectional lead screw is threaded through the slider and connected to the bidirectional lead screw. A pressure plate is provided on the side of each clamping plate that is close to each other. A unidirectional lead screw is rotatably connected to the upper center of the pressure plate. The feeding mechanism includes a transmission roller and a pressure roller. A pressure roller is provided above the transmission roller. A first support shaft and a second support shaft are respectively threaded through the transmission roller and the pressure roller. A third bracket is connected to both ends of the second support shaft. Two second telescopic rods are symmetrically connected above the third bracket. A fourth bracket is connected to the outside of the second telescopic rods.
2. The cutting device for processing packaging bags according to claim 1, characterized in that, The bearing plate has a cutting hole inside, and the vertical projection of the cutting blade coincides with the cutting hole. The cutting blade is detachably connected to the mounting plate. Two first telescopic rods are symmetrically connected above the mounting plate. A first bracket is connected to the outside of the first telescopic rod. Both ends of the mounting plate pass through the two sides of the first bracket and are slidably connected to the first bracket.
3. The cutting device for processing packaging bags according to claim 1, characterized in that, Each of the multiple through holes is connected to a first connecting tube at the end away from the first telescopic rod. The first limiting rod passes through the interior of the first connecting tube. A spring is sleeved on the outside of the first limiting rod. A stop plate is connected to the end of the first limiting rod away from the first connecting tube. A second connecting tube is provided at both ends of the spring. The two second connecting tubes are detachably connected to the first connecting tube and the stop plate, respectively.
4. A cutting device for processing packaging bags according to claim 1, characterized in that, A dust plug is installed inside the through hole.
5. A cutting device for processing packaging bags according to claim 1, characterized in that, The slider passes through the interior of the mounting hole and is slidably connected to the mounting hole. Support plates are provided on both sides below the mounting hole. The upper part of the support plates is connected to the bearing plate. Limiting holes are provided inside the support plates. Limiting blocks are connected to both sides of the end of the slider away from the clamping plate. The limiting blocks pass through the interior of the limiting holes and are slidably connected to the limiting holes. The two ends of the bidirectional lead screw are rotatably connected to the two ends of the mounting hole, and one end of the bidirectional lead screw is connected to a first motor.
6. A cutting device for processing packaging bags according to claim 1, characterized in that, A second bracket is connected above the clamping plate, and two second limiting rods are symmetrically connected above the pressure plate. The second limiting rods pass through the interior of the second bracket and are slidably connected to the second bracket. The one-way screw passes through the interior of the second bracket and is threadedly connected to the second bracket. A buckle is connected to the outside of the one-way screw. A notch is provided at one end of the second bracket near the buckle. A protrusion is provided below the side of the buckle near the notch. The protrusion slides in cooperation with the notch.
7. A cutting device for processing packaging bags according to claim 1, characterized in that, The transmission roller is detachably connected to the first support shaft. One end of the first support shaft is connected to a second motor. The end of the first support shaft away from the first motor is rotatably connected to the fourth bracket. Two support legs are connected to both ends of the lower part of the bearing plate. Two connecting grooves are symmetrically arranged on the side of the fourth bracket near the support legs. The connecting grooves slide with the support legs.
8. A cutting device for processing packaging bags according to claim 1, characterized in that, A controller is provided on one side of the feeding mechanism.