A flat type plastic packaging bag processing device
By combining the frame structure and the device, the problem of film wrinkles in the production of plastic packaging bags was solved, achieving flatness and functional improvement of the packaging bags, and enhancing the stability and shock resistance of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- TONGCHENG WANFANG PAPER&PLASTIC PACKAGING CO LTD
- Filing Date
- 2025-06-06
- Publication Date
- 2026-06-02
AI Technical Summary
In existing plastic packaging bag processing equipment, the plastic film is prone to wrinkles during the production process, resulting in an uneven surface of the packaging bag, which affects its aesthetics and functionality.
The frame structure includes a feeding device, a tensioning assembly, a shock-absorbing assembly, and a heating and cooling device. The tension of the plastic film is controlled by the cooperation of the guide roller and the tensioning roller. The film is softened by the heating box and quickly shaped by the cooling fan. The cutting device precisely controls the length of the film and reduces the formation of wrinkles.
This achieves a smooth surface on the plastic packaging bags, enhancing their aesthetics and functionality, and improving the equipment's shock and impact resistance.
Smart Images

Figure CN224312913U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of packaging equipment technology, and in particular to a flattenable plastic packaging bag processing device. Background Technology
[0002] With the continuous development of my country's economy and the improvement of people's living standards, the demand for packaging is increasing day by day. Plastic packaging bags, due to their advantages such as being lightweight, low-cost, and having good sealing properties, are widely used in many fields such as food, pharmaceuticals, daily chemicals, and agricultural products. However, the quality of plastic packaging bags directly affects the appearance, protective performance, and consumer experience of products. High-quality packaging not only enhances the product image but also effectively protects the product and reduces damage during transportation.
[0003] The existing technology has the following defects or problems:
[0004] In existing plastic packaging bag processing equipment, the plastic film is prone to wrinkles during production and processing, resulting in an uneven surface on the final packaging bag. This not only affects the aesthetics of the packaging but may also affect its functionality.
[0005] It should be noted that the above content falls within the inventor's technical knowledge and does not necessarily constitute prior art. Utility Model Content
[0006] To overcome the above shortcomings, this utility model provides a flattenable plastic packaging bag processing device, which aims to improve the problem that in the production and processing of plastic packaging bags in the prior art, the plastic film is prone to wrinkles, resulting in an uneven surface of the final produced packaging bag.
[0007] To achieve the above objectives, the present invention adopts the following technical solution: a flattenable plastic packaging bag processing device, comprising a frame, a feeding device fixedly connected to the left end of the frame, and a tensioning component provided on the left end of the inner sidewall of the frame.
[0008] The tensioning assembly includes two first guide rollers, both of which are fixedly connected to the left end of the inner sidewall of the frame. Two second guide rollers are fixedly connected to the middle of the inner sidewall of the frame, and a third guide roller is fixedly connected to the right end of the two second guide rollers. Two support frames are fixedly connected to the top of the frame. Slide grooves are provided on the left and right sides of the inner sidewall of the two support frames. A slider is provided in the middle of the two support frames. A tensioning roller is fixedly connected to the adjacent side of the middle of the two sliders. A lead screw is threaded to the middle of the front end of the frame. A rotating handle is fixedly connected to the top of the lead screw. A shock-absorbing assembly is provided on the outer sidewall of the frame.
[0009] As a further description of the above technical solution:
[0010] The shock absorption assembly includes multiple corner joints, each of which is fixedly connected to the outer side wall of the frame. Each of the multiple corner joints has a damper fixedly connected to the middle of its bottom end, and each of the multiple dampers has a support leg fixedly connected to its bottom end. Each of the multiple dampers has a buffer spring sleeved on its outer side.
[0011] As a further description of the above technical solution:
[0012] Both sliders are slidably connected to the inner wall of the groove on the left and right sides, and the bottom end of the lead screw passes through the middle of the front slider and is rotatably connected to the inner bottom wall of the support frame.
[0013] As a further description of the above technical solution:
[0014] The top ends of the plurality of buffer springs are fixedly connected to the bottom end of the corner joint, and the ends of the plurality of buffer springs away from the corner joint are fixedly connected to the top end of the support leg.
[0015] As a further description of the above technical solution:
[0016] Rubber pads are fixedly connected to the bottom ends of each of the legs.
[0017] As a further description of the above technical solution:
[0018] A heating box is fixedly connected to the left side of the top center of the frame, and a cooling box is fixedly connected to the right side of the top center of the frame.
[0019] As a further description of the above technical solution:
[0020] The top of the cooling box is fixedly connected to multiple evenly distributed cooling fans, and the right side of the inner wall of the frame is fixedly connected to a cutting device.
[0021] This utility model has the following beneficial effects:
[0022] 1. In this utility model, a feeding device installed at the front end of the frame can feed the plastic film into the processing area. At the same time, the cooperation of the first guide roller, the second guide roller and the third guide roller can guide the forward direction of the plastic film. A slider is provided in the middle of the two support frames fixed at the top of the frame. The middle of the two sliders is connected by a tension roller, and the front slider is threaded to a screw. Thus, by rotating the handle fixed at the top of the screw, the height of the slider and the tension roller can be adjusted, so that the plastic film can always be kept taut and the formation of wrinkles can be reduced.
[0023] 2. In this utility model, multiple corner connectors are fixedly installed on the outer wall of the frame. The bottom ends of these corner connectors are tightly connected to the outriggers via dampers, ensuring the stability of the structure. In addition, a buffer spring is sleeved on the outside of the damper. The cooperation between the damper and the buffer spring can effectively absorb and mitigate the impact force generated during equipment operation, enhancing the seismic and impact resistance of the entire frame structure. Attached Figure Description
[0024] Figure 1 This is a perspective view of a flattenable plastic packaging bag processing device proposed in this utility model;
[0025] Figure 2 This is an enlarged view of point A of the flattenable plastic packaging bag processing device proposed in this utility model;
[0026] Figure 3 This is an enlarged view of point B in the flattenable plastic packaging bag processing device proposed in this utility model;
[0027] Figure 4 This is a schematic diagram of the heating box of a flattenable plastic packaging bag processing device proposed in this utility model.
[0028] Legend:
[0029] 1. Frame; 2. Feeding device; 3. First guide roller; 4. Second guide roller; 5. Third guide roller; 6. Support frame; 7. Slide groove; 8. Slider; 9. Tensioning roller; 10. Lead screw; 11. Rotary handle; 12. Angle connector; 13. Damper; 14. Support leg; 15. Buffer spring; 16. Rubber pad; 17. Heating box; 18. Cooling box; 19. Cooling fan; 20. Cutting device. Detailed Implementation
[0030] 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.
[0031] Reference Figure 1 , Figure 2 and Figure 4 The present invention provides an embodiment of a flattenable plastic packaging bag processing device, comprising a frame 1, a feeding device 2 fixedly connected to the left end of the frame 1, and a tensioning component provided on the left end of the inner sidewall of the frame 1.
[0032] The tensioning assembly includes two first guide rollers 3, both of which are fixedly connected to the left end of the inner wall of the frame 1. Two second guide rollers 4 are fixedly connected to the middle of the inner wall of the frame 1. A third guide roller 5 is fixedly connected to the right end of the two second guide rollers 4. Two support frames 6 are fixedly connected to the top of the frame 1. Slide grooves 7 are provided on both the left and right sides of the inner wall of the two support frames 6. A slider 8 is provided in the middle of the two support frames 6. A tensioning roller 9 is fixedly connected to the adjacent side of the middle of the two sliders 8. A lead screw 10 is threadedly connected to the middle of the front frame 1. A rotating handle 11 is fixedly connected to the top of the lead screw 10. A shock-absorbing assembly is provided on the outer wall of the frame 1. The left and right sides of the two sliders 8 are slidably connected to the inner wall of the slide grooves 7. The bottom end of the lead screw 10 passes through the middle of the front slider 8 and is rotatably connected to the inner bottom wall of the support frame 6.
[0033] Specifically: The left and right sides of the slider 8 are slidably connected to the inner wall of the groove 7, which can ensure that the tension roller 9 can be smoothly adjusted up and down without any change in angle.
[0034] Reference Figure 1 , Figure 3 and Figure 4 The shock absorption assembly includes multiple corner joints 12, each fixedly connected to the outer wall of the frame 1. A damper 13 is fixedly connected to the center of the bottom of each corner joint 12. A support leg 14 is fixedly connected to the bottom of each damper 13. A buffer spring 15 is sleeved on the outer side of each damper 13. The top of each buffer spring 15 is fixedly connected to the bottom of the corner joint 12, and the end of each buffer spring 15 away from the corner joint 12 is fixedly connected to the top of the support leg 14. A rubber pad 16 is fixedly connected to the bottom of each support leg 14.
[0035] Specifically, by fixing rubber pads 16 to the bottom of multiple support legs 14, the vibration force can be further reduced and the friction of 14 can be increased to prevent the equipment from sliding.
[0036] Reference Figure 1 and Figure 4 A heating box 17 is fixedly connected to the top center left of the frame 1, and a cooling box 18 is fixedly connected to the top center right of the frame 1; multiple evenly distributed cooling fans 19 are fixedly connected to the top of the cooling box 18, and a cutting device 20 is fixedly connected to the inner side wall right of the frame 1.
[0037] Specifically: A heating box 17 is fixed to the left side of the top center of the frame 1 to heat the plastic film, making it soft and easy to flatten. A cooling box 18 is fixed to the top of the frame 1, and multiple cooling fans 19 are fixed to the top of the cooling box 18 to quickly cool and shape the softened and flattened plastic film. The cutting device 20 fixed to the right side of the inner wall of the frame 1 can precisely cut the plastic film, thereby accurately controlling the length of the rolled-up plastic film.
[0038] It should be noted that the feeding device 2, heating box 17, cooling box 18, and cutting device 20 are all well-known or known to those skilled in the art, and therefore will not be described here.
[0039] Working principle: The device feeds plastic film into the processing area through the feeding device 2 installed at the front end of the frame 1. At the same time, the forward direction of the plastic film can be guided by the cooperation of the first guide roller 3, the second guide roller 4 and the third guide roller 5. Slider 8 is provided in the middle of the two support frames 6 fixed at the top of the frame 1. The middle of the two sliders 8 is connected by the tension roller 9, and the front slider 8 is threaded to the lead screw 10. Thus, by rotating the handle 11 fixed at the top of the lead screw 10, the height of the slider 8 and the tension roller 9 can be adjusted, so that the plastic film can always be kept taut and wrinkles can be reduced.
[0040] A heating box 17 is fixed to the left side of the top center of the frame 1 to heat the plastic film, making it soft and easy to flatten. A cooling box 18 is fixed to the top of the frame 1, and multiple cooling fans 19 are fixed to the top of the cooling box 18 to quickly cool and shape the softened and flattened plastic film. The cutting device 20 fixed to the right side of the inner wall of the frame 1 can precisely cut the plastic film, thereby precisely controlling the length of the rolled-up plastic film.
[0041] Meanwhile, by fixing multiple corner joints 12 to the outer wall of frame 1, the bottom ends of these corner joints 12 are tightly connected to the legs 14 via dampers 13, ensuring the stability of the structure. In addition, a buffer spring 15 is also sleeved on the outside of the damper 13. The cooperation between the damper 13 and the buffer spring 15 can effectively absorb and mitigate the impact force generated during equipment operation, enhancing the seismic and impact resistance of the entire frame structure.
[0042] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model 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 utility model should be included within the protection scope of the present utility model.
Claims
1. A flattenable plastic packaging bag processing device, comprising a frame (1), characterized in that: The left end of the frame (1) is fixedly connected to a feeding device (2), and the left end of the inner sidewall of the frame (1) is provided with a tensioning component. The tensioning assembly includes two first guide rollers (3), both of which are fixedly connected to the left end of the inner wall of the frame (1). Two second guide rollers (4) are fixedly connected to the middle of the inner wall of the frame (1). A third guide roller (5) is fixedly connected to the right end of the two second guide rollers (4). Two support frames (6) are fixedly connected to the top of the frame (1). Slide grooves (7) are provided on the left and right sides of the inner wall of the two support frames (6). A slider (8) is provided in the middle of the two support frames (6). A tensioning roller (9) is fixedly connected to the adjacent side of the middle of the two sliders (8). A lead screw (10) is threadedly connected to the middle of the front end of the frame (1). A rotating handle (11) is fixedly connected to the top of the lead screw (10). A shock-absorbing assembly is provided on the outer wall of the frame (1).
2. The flattenable plastic packaging bag processing device according to claim 1, characterized in that: The shock-absorbing assembly includes multiple corner joints (12), each of which is fixedly connected to the outer side wall of the frame (1). Each of the multiple corner joints (12) has a damper (13) fixedly connected to the middle of its bottom end. Each of the multiple dampers (13) has a support leg (14) fixedly connected to its bottom end. Each of the multiple dampers (13) has a buffer spring (15) sleeved on its outer side.
3. The flattenable plastic packaging bag processing device according to claim 1, characterized in that: The left and right sides of the two sliders (8) are slidably connected to the inner wall of the groove (7), and the bottom end of the lead screw (10) passes through the middle of the front slider (8) and is rotatably connected to the inner bottom wall of the support frame (6).
4. The flattenable plastic packaging bag processing device according to claim 2, characterized in that: The top ends of the plurality of buffer springs (15) are fixedly connected to the bottom end of the corner joint (12), and the ends of the plurality of buffer springs (15) away from the corner joint (12) are fixedly connected to the top end of the support leg (14).
5. The flattenable plastic packaging bag processing device according to claim 2, characterized in that: Rubber pads (16) are fixedly connected to the bottom ends of each of the legs (14).
6. The flattenable plastic packaging bag processing device according to claim 1, characterized in that: A heating box (17) is fixedly connected to the left side of the top center of the frame (1), and a cooling box (18) is fixedly connected to the right side of the top center of the frame (1).
7. The flattenable plastic packaging bag processing device according to claim 6, characterized in that: The top of the cooling box (18) is fixedly connected to a plurality of evenly distributed heat dissipation fans (19), and the right side of the inner wall of the frame (1) is fixedly connected to a cutting device (20).