Packaging bag cutting device
By designing a packaging bag cutting device that combines a U-shaped support and a crawler conveyor with roller leveling and cutting blade cutting, the problems of edge curling and offset of packaging bags during the cutting process are solved, and flush cutting of the cut is achieved.
Patent Information
- Application Number
- CN202423165808.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-22
- Publication Date
- 2025-12-02
- Estimated Expiration
- 2034-12-22
AI Technical Summary
The leveling device in existing packaging bag cutting equipment is some distance away from the cutting position, which makes the packaging bags prone to curling or shifting during transportation, and the cut is not even after cutting.
A packaging bag cutting device was designed, comprising a U-shaped support, a conveyor belt, a cutting component, and a transport component. The packaging bag is transported to the V-shaped cutting groove by the conveyor belt, and the cutting blade and rollers are driven by a telescopic cylinder to flatten the packaging bag. Then, the finished bag is transported by the conveyor belt controlled by the shaped rod and gear system.
It achieves flush cutting of packaging bags, avoiding curling and offset, and ensuring cutting quality.
Smart Images
Figure CN223618363U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of packaging bag cutting technology, specifically a packaging bag cutting device. Background Technology
[0002] Packaging bags are bags used to package various goods, facilitating transportation and storage during production and distribution. They are widely used in daily life and industrial production. Based on manufacturing processes, they are often classified into plastic packaging bags and composite packaging bags. Based on raw materials, they can be categorized as high-density polyethylene (HDPE) plastic bags, low-density polyethylene (LDPE) plastic bags, polypropylene (PP) plastic bags, polyvinyl chloride (PVC) plastic bags, etc.
[0003] In the current production of packaging bags, it is necessary to cut the packaging bags into finished sizes. The existing packaging bag cutting equipment is relatively mature, but there are still some defects in actual use. The flattening device in the existing cutting equipment is still a distance away from the cutting position. During transportation, the packaging bags are also prone to curling or shifting, which will result in uneven cuts after cutting.
[0004] Therefore, we propose a packaging bag cutting device to solve the problems mentioned above. Utility Model Content
[0005] The purpose of this utility model is to provide a packaging bag cutting device to solve the problems mentioned in the background art, which still have some defects in actual use. The flattening device in the existing cutting equipment is still a distance away from the cutting position. During transportation, the packaging bag is also prone to curling or shifting, which will result in uneven cuts after cutting.
[0006] To achieve the above objectives, this utility model provides the following technical solution: It includes a workbench and a U-shaped bracket fixedly mounted on the workbench. The workbench has a first chamber and a second chamber. A track is rotatably mounted within the first chamber. An L-shaped limiting plate is fixedly mounted on the workbench. A V-shaped cutting groove is formed on the workbench. A cutting assembly for cutting packaging bags is provided at the lower end of the U-shaped bracket. The cutting assembly includes a telescopic cylinder fixedly mounted at the lower end of the U-shaped bracket. A connecting box is fixedly mounted at the telescopic end of the telescopic cylinder. A cutting blade is fixedly mounted at the lower end of the connecting box. Two fixing plates are fixedly mounted on the side wall of the connecting box. A rotating shaft is rotatably mounted between the two fixing plates. A support rod is fixedly mounted on the axial side wall of the rotating shaft. A first mounting groove is formed on the support rod. A rotating shaft is rotatably mounted within the first mounting groove. A roller is fixedly mounted on the axial side wall of the rotating shaft. A transport assembly for transferring finished packaging bags to the next process is provided on the side wall of the connecting box.
[0007] Preferably, the transport component includes an irregularly shaped rod fixedly installed on the side wall of the connecting box, a second mounting groove is provided on the irregularly shaped rod, an arc-shaped block is slidably installed in the second mounting groove, a spring is fixedly installed between the second mounting groove and the arc-shaped block, two rotating wheels are rotatably installed in the second cavity, a conveyor belt is installed on the two rotating wheels, gears are fixedly installed on the axial side walls at both ends of one of the rotating wheels, the arc-shaped block meshes with the gears, and a rectangular limiting plate is fixedly installed on the worktable.
[0008] Preferably, the arc-shaped surface of the arc-shaped block is located at the upper end of the gear.
[0009] Preferably, the cutting blade and the V-shaped groove are on the same vertical plane, and the size of the cutting blade is smaller than that of the V-shaped groove.
[0010] Preferably, the support rod and roller are closer to the V-shaped groove than the cutting blade.
[0011] Preferably, the distance between one end of the support rod and the connecting box is sufficient to allow the support rod to rotate.
[0012] Compared with the prior art, the beneficial effects of this utility model are:
[0013] 1. First, place the packaging bag on the track. Then, the track will transport the packaging bag to the V-shaped cutting groove. Activate the telescopic cylinder, causing the telescopic end of the cylinder to move the connecting box downwards. With the cooperation of the fixed plate, support rod, rollers, and cutting blade, the rollers will first contact the packaging bag, at which point the rollers will temporarily fix the packaging bag. As the rollers and cutting blade continue to move downwards, the rollers will roll on the packaging bag, leveling it and ensuring that the cut of the packaging bag is flush.
[0014] 2. With the cooperation of the telescopic cylinder, connecting box, and irregular rod, when the irregular rod moves downward, the arc-shaped block on the irregular rod will contact the gear. The gear will push the arc-shaped block into the second mounting slot through the spring. When the arc-shaped block is not in contact with the gear, the arc-shaped block will return to its original shape due to the action of the spring. At this time, the gear will not rotate. When the irregular rod drives the arc-shaped block to move upward, the arc-shaped block drives the gear to rotate, thereby driving the conveyor belt to rotate, and finally conveying the finished packaging bag on the conveyor belt to the next process. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model;
[0016] Figure 2 This is a three-dimensional structural diagram of the cutting component of this utility model;
[0017] Figure 3This is a three-dimensional structural diagram of the transport component of this utility model;
[0018] Figure 4 This is a partial cross-sectional view of the transport component of this utility model.
[0019] In the diagram: 1. Workbench; 11. First chamber; 12. L-shaped limiting plate; 13. Second chamber; 14. U-shaped bracket; 15. V-shaped cutting groove; 16. Track; 2. Cutting assembly; 21. Telescopic cylinder; 22. Connecting box; 23. Cutting blade; 24. First mounting slot; 25. Fixing plate; 26. Rotating shaft; 27. Support rod; 28. Rotating shaft; 29. Roller; 3. Transport assembly; 31. Irregular rod; 32. Second mounting slot; 33. Arc block; 34. Spring; 35. Gear; 36. Rotating wheel; 37. Conveyor belt; 38. Rectangular limiting plate. Detailed Implementation
[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0021] Example 1: Please refer to Figure 1 and Figure 2 The system includes a workbench 1 and a U-shaped bracket 14 fixedly mounted on the workbench 1. The workbench 1 has a first chamber 11 and a second chamber 13. A track 16 is rotatably mounted inside the first chamber 11. An L-shaped limiting plate 12 is fixedly mounted on the workbench 1. A V-shaped cutting groove 15 is formed on the workbench 1. A cutting assembly 2 for cutting packaging bags is located at the lower end of the U-shaped bracket 14. The cutting assembly 2 includes a telescopic cylinder 21 fixedly mounted at the lower end of the U-shaped bracket 14. The telescopic end of the telescopic cylinder 21 is fixedly mounted with a connecting... The lower end of the connecting box 22 is fixedly installed with a cutting blade 23. Two fixing plates 25 are fixedly installed on the side wall of the connecting box 22. A rotating shaft 26 is rotatably installed between the two fixing plates 25. A support rod 27 is fixedly installed on the axial side wall of the rotating shaft 26. A first mounting groove 24 is opened on the support rod 27. A rotating shaft 28 is rotatably installed in the first mounting groove 24. A roller 29 is fixedly installed on the axial side wall of the rotating shaft 28. A transport component 3 for transferring the finished packaging bag to the next process is provided on the side wall of the connecting box 22.
[0022] The cutting blade 23 and the V-shaped groove 15 are on the same vertical plane. The size of the blade of the cutting blade 23 is smaller than that of the V-shaped groove 15. When the cutting blade 23 cuts the packaging bag, the blade will enter the V-shaped groove 15 and will not damage the worktable 1.
[0023] The support rod 27 and roller 29 are closer to the V-shaped groove 15 than the cutting blade 23. When the cutting blade 23 has not yet touched the packaging bag, the roller 29 has already contacted the packaging bag and plays a temporary fixing role. When the cutting blade 23 continues to move downward, the roller 29 will roll on the packaging bag, thereby playing a role in leveling the packaging bag.
[0024] The distance between one end of the support rod 27 and the connecting box 22 is sufficient to allow the support rod 27 to rotate. When the support rod 27 moves down to contact the packaging bag, one end of the support rod 27 will move outward, and the other end will rotate on the rotating shaft 26. At this time, a certain gap is left to ensure that the support rod 27 can rotate smoothly.
[0025] In this embodiment: First, the packaging bag is placed on the track 16, which transports the packaging bag to the V-shaped groove 15. Then, the telescopic cylinder 21 is activated, causing the telescopic end of the cylinder 21 to drive the connecting box 22 to move up and down. The connecting box 22 drives the fixing plate 25, the support rod 27, and the cutting blade 23 to move downward. The roller 29 on the support rod 27 first contacts the packaging bag, and the roller 29 temporarily fixes the packaging bag. As the support rod 27 and the cutting blade 23 continue to move downward, the roller 29 rolls outward on the packaging bag. At this time, the roller 29 flattens and crushes the packaging bag. Then, the cutting blade 23 cuts the packaging bag, resulting in a flush cut.
[0026] Example 2: This example is an improvement on Example 1. For details, please refer to [link / reference]. Figure 3 and Figure 4 The transport component 3 includes an irregularly shaped rod 31 fixedly installed on the side wall of the connecting box 22. A second mounting groove 32 is provided on the irregularly shaped rod 31. An arc-shaped block 33 is slidably installed in the second mounting groove 32. A spring 34 is fixedly installed between the second mounting groove 32 and the arc-shaped block 33. Two rotating wheels 36 are rotatably installed in the second chamber 13. A conveyor belt 37 is installed on the two rotating wheels 36. Gears 35 are fixedly installed on the axial side walls at both ends of one of the rotating wheels 36. The arc-shaped block 33 meshes with the gears 35. A rectangular limiting plate 38 is fixedly installed on the worktable 1.
[0027] The arc-shaped surface of the arc block 33 is set on the upper end of the gear 35. When the arc block 33 moves downward, the teeth of the gear 35 push the arc block 33 into the second mounting groove 32 through the spring 34. At this time, the gear 35 will not rotate. When the arc block 33 moves upward, the arc block 33 will drive the gear 35 to rotate.
[0028] In this embodiment: the telescopic cylinder 21 drives the connecting box 22 and the irregular rod 31 to move up and down. When the irregular rod 31 moves downward, the arc block 33 on the irregular rod 31 contacts the gear 35. At this time, the gear 35 will squeeze the arc block 33 into the second mounting groove 32 through the spring 34. When the arc block 33 does not contact the gear 35, the arc block 33 will return to its original shape due to the action of the spring 34. At this time, the gear 35 will not rotate, the conveyor belt 37 will not rotate, and the packaging bag will be stationary on the conveyor belt 37. When the irregular rod 31 drives the arc block 33 to move upward, the arc block 33 will drive the gear 35 to rotate. The gear 35 drives the rotating wheel 36 and the conveyor belt 37 to rotate. At this time, the cut packaging bag will be conveyed to the next process through the conveyor belt 37.
[0029] The contents not described in detail in this specification are existing technologies known to those skilled in the art.
[0030] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. A packaging bag cutting device, comprising a workbench (1) and a U-shaped bracket (14) fixedly mounted on the workbench (1), wherein a first chamber (11) is provided on the workbench (1), a second chamber (13) is provided on the workbench (1), a track (16) is rotatably arranged in the first chamber (11), an L-shaped limiting plate (12) is fixedly mounted on the workbench (1), and a V-shaped cutting groove (15) is provided on the workbench (1), characterized in that: The lower end of the U-shaped bracket (14) is provided with a cutting component (2) for cutting the packaging bag. The cutting component (2) includes a telescopic cylinder (21) fixedly installed at the lower end of the U-shaped bracket (14). A connecting box (22) is fixedly installed at the telescopic end of the telescopic cylinder (21). A cutting blade (23) is fixedly installed at the lower end of the connecting box (22). Two fixing plates (25) are fixedly installed on the side wall of the connecting box (22). A rotating shaft (26) is rotatably installed between the two fixing plates (25). A support rod (27) is fixedly installed on the axial side wall of the rotating shaft (26). A first mounting groove (24) is opened on the support rod (27). A rotating shaft (28) is rotatably installed in the first mounting groove (24). A roller (29) is fixedly installed on the axial side wall of the rotating shaft (28). A transport component (3) for transferring the finished packaging bag to the next process is provided on the side wall of the connecting box (22).
2. The packaging bag cutting device according to claim 1, characterized in that: The transport component (3) includes a shaped rod (31) fixedly installed on the side wall of the connecting box (22). A second mounting groove (32) is provided on the shaped rod (31). An arc-shaped block (33) is slidably installed in the second mounting groove (32). A spring (34) is fixedly installed between the second mounting groove (32) and the arc-shaped block (33). Two rotating wheels (36) are rotatably installed in the second chamber (13). A conveyor belt (37) is installed on both of the two rotating wheels (36). A gear (35) is fixedly installed on the axial side wall at both ends of one of the rotating wheels (36). The arc-shaped block (33) meshes with the gear (35). A rectangular limiting plate (38) is fixedly installed on the worktable (1).
3. The packaging bag cutting device according to claim 2, characterized in that: The arc-shaped surface of the arc block (33) is located at the upper end of the gear (35).
4. The packaging bag cutting device according to claim 1, characterized in that: The cutting blade (23) and the V-shaped groove (15) are on the same vertical plane, and the size of the blade of the cutting blade (23) is smaller than that of the V-shaped groove (15).
5. A packaging bag cutting device according to claim 4, characterized in that: The support rod (27) and roller (29) are closer to the V-groove (15) than the cutting blade (23).
6. A packaging bag cutting device according to claim 5, characterized in that: The distance between one end of the support rod (27) and the connecting box (22) is sufficient to allow the support rod (27) to rotate.