A folding device for PE bag production
The folding device driven by a bidirectional screw and servo motor solves the problem of insufficient flexibility in width, height and angle adjustment of traditional PE bag production equipment, and realizes efficient and precise folding operation, thereby improving production efficiency and product quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHONGQING YUNJINGYU ELECTRONIC MATERIALS CO LTD
- Filing Date
- 2025-06-11
- Publication Date
- 2026-06-12
AI Technical Summary
Traditional PE bag production equipment lacks flexibility in adjusting the width, height, and angle of the folded edges, resulting in low production efficiency and difficulty in meeting diverse folding process requirements.
The material tension is adjusted by using a bidirectional screw linkage adjustment plate for lateral movement and longitudinal sliding, combined with a servo motor driving the bidirectional screw. With the help of a limit roller frame for guidance, a multi-stage locking structure ensures the folding accuracy.
It enables rapid adaptation to different widths, heights, and folding angles, improves the versatility and efficiency of production equipment, reduces the defect rate, and ensures folding accuracy and product quality.
Smart Images
Figure CN224348530U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of PE bag processing technology, and in particular to a folding device for PE bag production. Background Technology
[0002] In today's packaging industry, PE bags are widely used for packaging various items such as food, daily necessities, and industrial products due to their good flexibility, moisture resistance, and cost-effectiveness. As the market demand for PE bags continues to grow, their production efficiency and quality have become the focus of enterprises. As a key process in the production of PE bags, folding plays a decisive role in the final quality and appearance of the product.
[0003] Currently, traditional folding devices lack flexibility. When faced with the folding requirements of PE bags of different widths and heights, the operation of adjusting the folding width of some devices is extremely cumbersome. For example, the traditional folding method of folding the film by folding the edge of the tripod and pressing it with a horizontal pressure roller requires adjusting the film feeding position and the intersection point of the pressure roller and the tripod to change the folding width, which consumes a lot of time and seriously restricts production efficiency. At the same time, traditional devices often cannot easily and accurately adjust the folding height and angle, making it difficult to meet the diverse folding process requirements. Utility Model Content
[0004] (a) Technical problems to be solved
[0005] To address the problems existing in the prior art, this utility model provides a folding device for PE bag production.
[0006] (II) Technical Solution
[0007] To achieve the above objectives, this utility model provides the following technical solution: a folding device for PE bag production, comprising a fixed base, a feeding cylinder rotatably connected to the surface of the fixed base, a worktable provided on one side of the feeding cylinder, an adjustment groove on the surface of the worktable, an adjustment plate slidably connected to the inner wall of the adjustment groove, an adjustment arc plate fixedly connected to the upper surface of the adjustment plate, an arc groove on the surface of the adjustment arc plate, a moving block slidably connected to the inner wall of the arc groove, a folding plate rotatably connected to one side of the moving block, and a movable plate rotatably connected to the surface of the folding plate.
[0008] In a preferred embodiment of the folding device for PE bag production described in this utility model, a sliding sleeve is fixedly connected to the lower surface of the adjusting plate, a bidirectional screw B is threadedly connected to the surface of the sliding sleeve, the upper surface of the bidirectional screw B is fixedly connected to the lower surface of the workbench, and a handle is fixedly connected to one end of the bidirectional screw B.
[0009] In a preferred embodiment of the folding device for PE bag production described in this utility model, an adjusting bolt is threadedly connected to the side of the moving block away from the folding plate, and a limit plate is fixedly connected to the surface of the adjusting bolt.
[0010] In a preferred embodiment of the folding device for PE bag production described in this utility model, a fixing bolt A is provided at the connection between the folding plate and the moving block, and a fixing bolt B is provided at the connection between the folding plate and the movable plate.
[0011] In a preferred embodiment of the folding device for PE bag production described in this utility model, an adjustment frame is fixedly connected to the surface of the workbench, a sliding plate is slidably connected to the inner wall of the adjustment frame, and two adjustment rollers are rotatably connected to the surface of the sliding plate.
[0012] In a preferred embodiment of the folding device for PE bag production described in this utility model, a movable rod is rotatably connected to the surface of the sliding plate, and a bidirectional screw A is threadedly connected to the lower end of the movable rod. The bidirectional screw A is rotatably connected to the side wall of the adjusting frame, and a servo motor is installed at one end of the bidirectional screw A.
[0013] In a preferred embodiment of the folding device for PE bag production described in this utility model, a limiting roller frame is provided between the adjusting frame and the adjusting groove, and the lower end of the limiting roller frame is fixedly connected to the surface of the workbench.
[0014] (III) Beneficial Effects
[0015] This utility model provides a folding device for PE bag production. It has the following advantages:
[0016] 1. By adjusting the horizontal movement of the bidirectional screw B linkage plate, combined with the longitudinal sliding of the moving block in the arc groove, and the adjustable angle design of the movable plate, it can quickly adapt to the production of PE bags with different widths, heights and folding angles, significantly improving the equipment's versatility and adaptability to production scenarios.
[0017] 2. The tension of the raw material is dynamically adjusted by driving the bidirectional screw A with a servo motor. Combined with the guiding effect of the limit roller frame, the feeding is ensured to be flat and stable. At the same time, the multi-level locking structure composed of components such as adjusting bolts, fixing bolts A and B can effectively prevent the components from shaking during the folding process, ensure the folding accuracy, reduce the defect rate, and thus improve production efficiency and product quality. Attached Figure Description
[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model, the 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.
[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0020] Figure 2 This is a schematic diagram of the structure of the adjustment frame in this utility model;
[0021] Figure 3 This is a schematic diagram of the structure of the adjusting arc plate in this utility model;
[0022] Figure 4 This is a schematic diagram of the folded edge plate in this utility model.
[0023] In the diagram, 1. Fixed base; 2. Feeding cylinder; 3. Worktable; 4. Adjusting frame; 5. Sliding plate; 6. Adjusting roller; 7. Movable rod frame; 8. Bidirectional screw A; 9. Servo motor; 10. Limiting roller frame; 11. Adjusting groove; 12. Adjusting plate; 13. Adjusting arc plate; 14. Arc groove; 15. Moving block; 16. Adjusting bolt; 17. Limiting disc; 18. Folding plate; 19. Movable plate; 20. Fixed bolt A; 21. Fixed bolt B; 22. Sliding sleeve; 23. Bidirectional screw B; 24. Rotary handle. Detailed Implementation
[0024] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.
[0025] Reference Figures 1 to 4 As shown, this utility model provides a technical solution: a folding device for PE bag production, including a fixed base 1, a feeding cylinder 2 rotatably connected to the surface of the fixed base 1, a workbench 3 provided on one side of the feeding cylinder 2, an adjustment groove 11 opened on the surface of the workbench 3, an adjustment plate 12 slidably connected to the inner wall of the adjustment groove 11, an adjustment arc plate 13 fixedly connected to the upper surface of the adjustment plate 12, an arc groove 14 opened on the surface of the adjustment arc plate 13, a moving block 15 slidably connected to the inner wall of the arc groove 14, a folding plate 18 rotatably connected to one side of the moving block 15, and a movable plate 19 rotatably connected to the surface of the folding plate 18. By sliding the moving block 15 in the arc groove 14, the height of the folding plate 18 on the moving block 15 can be adjusted, thereby performing folding operations on PE bags of different heights. At the same time, rotating the movable plate 19 can change the folding angle, thereby improving the adaptability of the device.
[0026] Reference Figure 3 and Figure 4 As shown in this embodiment: a sliding sleeve 22 is fixedly connected to the lower surface of the adjusting plate 12, and a bidirectional screw B23 is threadedly connected to the surface of the sliding sleeve 22. The upper surface of the bidirectional screw B23 is fixedly connected to the lower surface of the worktable 3, and a handle 24 is fixedly connected to one end of the bidirectional screw B23. By rotating the handle 24, the bidirectional screw B23 is driven to rotate. When the bidirectional screw B23 rotates, it will drive the sliding sleeve 22 to move. When the sliding sleeve 22 moves, it will drive the adjusting plate 12 to move, thereby enabling the folding of PE bags of different widths, improving the practicality of the device. An adjusting bolt 16 is threadedly connected to the side of the moving block 15 away from the folding plate 18. A limiting plate 17 is fixedly connected to the surface. By setting an adjusting bolt 16, after the position of the moving block 15 is adjusted, rotating the adjusting bolt 16 can press the inner wall of the adjusting arc plate 13 through the limiting plate 17, thereby fixing the moving block 15 and preventing it from shaking or shifting. A fixing bolt A20 is provided at the connection between the folded plate 18 and the moving block 15, and a fixing bolt B21 is provided at the connection between the folded plate 18 and the movable plate 19. After the positions of the folded plate 18 and the movable plate 19 are adjusted, rotating the fixing bolt A20 and the fixing bolt B21 can fix the rotated folded plate 18 and the movable plate 19, thereby preventing them from shaking.
[0027] Reference Figure 1 , Figure 2 and Figure 3 As shown, specifically, an adjustment frame 4 is fixedly connected to the surface of the workbench 3. A sliding plate 5 is slidably connected to the inner wall of the adjustment frame 4. Two adjustment rollers 6 are rotatably connected to the surface of the sliding plate 5. A movable rod 7 is rotatably connected to the surface of the sliding plate 5. A bidirectional screw A8 is threadedly connected to the lower end of the movable rod 7. The bidirectional screw A8 is rotatably connected to the side wall of the adjustment frame 4, and a servo motor 9 is installed at one end of the bidirectional screw A8. By rotating the unwinding cylinder 2 on the fixed seat 1, the PE bag raw material roll is unwound and guided by the limiting roller frame 10 before entering the machine. The raw material enters the adjustment frame 4 area, where the servo motor 9 drives the bidirectional screw A, which in turn drives the sliding plate 5 to rise and fall through the movable rod frame 7. This adjusts the distance and pressure between the two adjustment rollers 6, thereby adjusting the tension and flatness of the raw material. A limit roller frame 10 is set between the adjustment frame 4 and the adjustment groove 11. The lower end of the limit roller frame 10 is fixedly connected to the surface of the worktable 3. By setting the limit roller frame 10, the raw material of the PE bag can be guided and limited, ensuring that the raw material is transported to the folding area along a fixed path, avoiding deviation or skew, and improving the accuracy of the folding position.
[0028] Working principle: First, in the raw material conveying stage, the PE bag raw material roll is installed on the fixed base 1 and rotatably connected to the feeding cylinder 2. After being guided by the limiting roller frame 10, it enters the adjustment frame 4 area. The servo motor 9 drives the bidirectional screw A to rotate, which drives the sliding plate 5 to slide on the inner wall of the adjustment frame 4 through the movable rod frame 7. This adjusts the distance and pressure of the two adjusting rollers 6 rotatably connected to the surface of the sliding plate 5, achieving precise adjustment of the raw material tension and flatness. Second, in the folding width and position adjustment stage, by rotating the handle 24 at one end of the bidirectional screw B, the thread transmission between the bidirectional screw B and the sliding sleeve 22 fixed on the lower surface of the adjustment plate 12 is used to drive the adjustment plate 12 to move laterally along the adjustment groove 11 on the surface of the worktable 3, achieving the adaptation of PE bags of different widths for folding. At the same time... The movable block 15 slides within the arc groove 14 of the adjusting arc plate 13, adjusting the height of the folding plate 18 rotatably connected to the movable block 15 to accommodate the folding requirements of PE bags of different heights. Then, during the folding angle adjustment and fixing stage, the folding angle can be changed by rotating the movable plate 19 rotatably connected to the surface of the folding plate 18. After the position of the movable block 15 is adjusted, the adjusting bolt 16 on the movable plate is rotated, and the limiting plate 17 applies pressure to the inner wall of the adjusting arc plate 13 to fix the movable block 15. After the positions of the folding plate 18 and the movable plate 19 are adjusted to the correct positions, the fixing bolts A and B are rotated respectively to fix the folding plate 18 to the movable block 15 and the folding plate 18 to the movable plate 19, preventing the components from shaking or shifting during operation.
[0029] It should be noted that in this paper, relational terms such as first and second are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations.
Claims
1. A folding device for PE bag production, comprising a fixing base (1), characterized in that: The surface of the fixed base (1) is rotatably connected to the feeding cylinder (2). A workbench (3) is provided on one side of the feeding cylinder (2). An adjustment groove (11) is provided on the surface of the workbench (3). An adjustment plate (12) is slidably connected to the inner wall of the adjustment groove (11). An adjustment arc plate (13) is fixedly connected to the upper surface of the adjustment plate (12). An arc groove (14) is provided on the surface of the adjustment arc plate (13). A moving block (15) is slidably connected to the inner wall of the arc groove (14). A folding plate (18) is rotatably connected to one side of the moving block (15). A movable plate (19) is rotatably connected to the surface of the folding plate (18).
2. The folding device for PE bag production according to claim 1, characterized in that: The lower surface of the adjusting plate (12) is fixedly connected to a sliding sleeve (22), and the surface of the sliding sleeve (22) is threadedly connected to a bidirectional screw B (23). The upper surface of the bidirectional screw B (23) is fixedly connected to the lower surface of the worktable (3), and one end of the bidirectional screw B (23) is fixedly connected to a throttle (24).
3. The folding device for PE bag production according to claim 1, characterized in that: The moving block (15) is threadedly connected to an adjusting bolt (16) on the side away from the folded edge plate (18), and a limit plate (17) is fixedly connected to the surface of the adjusting bolt (16).
4. The folding device for PE bag production according to claim 1, characterized in that: A fixing bolt A (20) is provided at the connection between the folded edge plate (18) and the movable block (15), and a fixing bolt B (21) is provided at the connection between the folded edge plate (18) and the movable plate (19).
5. A folding device for PE bag production according to claim 1, characterized in that: An adjustment frame (4) is fixedly connected to the surface of the workbench (3), and a sliding plate (5) is slidably connected to the inner wall of the adjustment frame (4). Two adjustment rollers (6) are rotatably connected to the surface of the sliding plate (5).
6. A folding device for PE bag production according to claim 5, characterized in that: The sliding plate (5) is rotatably connected to a movable rod (7), and the lower end of the movable rod (7) is threadedly connected to a bidirectional screw A (8). The bidirectional screw A (8) is rotatably connected to the side wall of the adjusting frame (4), and a servo motor (9) is installed at one end of the bidirectional screw A (8).
7. A folding device for PE bag production according to claim 5, characterized in that: A limiting roller frame (10) is provided between the adjusting frame (4) and the adjusting groove (11), and the lower end of the limiting roller frame (10) is fixedly connected to the surface of the worktable (3).