Die cutting device with width adjusting structure for plastic film
By designing a width-adjustable die-cutting device and a pressing device, the problem of width adjustment and fixation during plastic film die-cutting was solved, achieving cutting precision and neatness.
Patent Information
- Application Number
- CN202422669953.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-04
- Publication Date
- 2025-11-04
- Estimated Expiration
- 2034-11-04
AI Technical Summary
In the existing technology, it is not convenient to adjust the cutting width and there is a lack of fixing measures when die-cutting plastic films, resulting in uneven cutting and film slippage.
A die-cutting device including a width-adjustable die-cutting unit and a pressing unit was designed. The distance between the die-cutting blades is adjusted by driving the connecting plate and the slider through a hydraulic cylinder, and the film is pressed by a pressure plate with a cylinder and a spring to ensure neat cutting.
It enables the adjustment of the die-cutting blade width as needed, avoiding film slippage and ensuring neatness and precision in cutting.
Smart Images
Figure CN223507290U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of plastic film die-cutting technology, specifically referring to a die-cutting device for plastic film with a width adjustment structure. Background Technology
[0002] Plastic film is a film made of polyvinyl chloride, polyethylene, polypropylene, polystyrene and other resins. It can be used for packaging and as a coating layer. Plastic film needs to be die-cut before use.
[0003] Existing technologies for die-cutting plastic films have some shortcomings: it is not easy to adjust the cutting width, and there is a lack of measures to fix the film during die-cutting, which can easily lead to film deformation and uneven cutting. Utility Model Content
[0004] The technical problem to be solved by this utility model is that in the prior art, when die-cutting plastic film, it is not convenient to adjust the die-cutting width according to the actual situation, and there is a lack of pressure and fixing measures when die-cutting the film, which leads to the film sliding during die-cutting and the phenomenon of uneven cutting.
[0005] To achieve the above functions, the technical solution adopted by this utility model is as follows: A die-cutting device for plastic film with a width adjustment structure includes a support leg, a worktable at the upper end of the support leg, a bracket at the upper end of the worktable, a hydraulic cylinder at the top wall of the bracket, a connecting plate at the output end of the hydraulic cylinder, a guide rod at the upper end of the connecting plate, the guide rod passing through the bracket, a width-adjustable die-cutting device inside the connecting plate, and a pressing device on the width-adjustable die-cutting device; the width-adjustable die-cutting device includes a slide groove located inside the connecting plate, a fixing block in the middle of the slide groove, a cylinder in the fixing block, a slider at the output end of the cylinder that slides in the slide groove, and a die-cutting blade at the lower end of the slider. By pushing the slider in the slide groove with the cylinder, the width between the die-cutting blades can be adjusted, thereby enabling the cutting of plastic films of different widths.
[0006] Furthermore, the pressing device includes a hollow box, which is fixed to both sides of the die-cutting blade. A pressure plate is slidably disposed in the hollow box, and an end plate is disposed at the upper end of the pressure plate. A spring is fixedly disposed on the end plate, and the other end of the spring is fixedly disposed on the top wall of the hollow box. When the die-cutting blade is die-cutting the plastic film, the pressure plate will press the plastic film to prevent it from sliding.
[0007] Preferably, the groove is provided with a slide rod, which passes through the slider.
[0008] Preferably, guide rollers are provided on the front and rear sides of the worktable, and the guide rollers can support and guide the plastic film.
[0009] Preferably, the initial state of the spring is such that the lowest end of the pressure plate is lower than the lowest end of the die-cutting blade.
[0010] Preferably, the lowest end of the hollow box is higher than the lowest end of the die-cutting blade.
[0011] The beneficial effects achieved by adopting the above-described structure are as follows:
[0012] 1. This utility model, by setting a width-adjustable die-cutting device, uses a cylinder to push the sliders on both sides to slide synchronously, and the sliders drive the die-cutting blades to slide, thereby achieving the purpose of adjusting the distance between the die-cutting blades, and can complete the cutting of plastic films of different widths.
[0013] 2. By setting up a pressing device, when the die-cutting knife cuts the plastic film, the pressure plate first contacts the plastic film. The pressure plate is located on both sides of the cutter and will press the plastic film. As the die-cutting knife moves down, the pressure plate slides in the hollow box, so the spring will exert more and more elastic force on the pressure plate until the cutting is completed. Then the die-cutting knife moves upward and the pressure plate will gradually leave the plastic film. Attached Figure Description
[0014] Figure 1 This is an overall structural diagram of a die-cutting device for plastic film with a width adjustment structure according to the present invention;
[0015] Figure 2 This is a structural diagram of a width-adjustable die-cutting device for plastic film, according to the present invention.
[0016] Figure 3 for Figure 1 Cross-sectional structural diagram of the medium-pressure solidification device;
[0017] Figure 4 for Figure 1 Bottom view of the middle connecting plate.
[0018] The components are as follows: 1. Support leg; 2. Workbench; 3. Support frame; 4. Hydraulic cylinder; 5. Connecting plate; 6. Guide rod; 7. Width-adjustable die-cutting device; 8. Pressing device; 9. Slide groove; 10. Fixing block; 11. Cylinder; 12. Slider; 13. Die-cutting blade; 14. Hollow box; 15. Pressure plate; 16. End plate; 17. Spring; 18. Slide rod; 19. Guide roller. Detailed Implementation
[0019] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0020] In the description of this utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0021] like Figure 1-4 This utility model discloses a die-cutting device for plastic film with a width adjustment structure, including a support leg 1, a worktable 2 at the upper end of the support leg 1, guide rollers 19 on the front and rear sides of the worktable 2, the guide rollers 19 can support and guide the plastic film, a bracket 3 at the upper end of the worktable 2, a hydraulic cylinder 4 at the top wall of the bracket 3, a connecting plate 5 at the output end of the hydraulic cylinder 4, a guide rod 6 at the upper end of the connecting plate 5, the guide rod 6 passing through the bracket 3, a width-adjustable die-cutting device 7 inside the connecting plate 5, and a pressing device 8 on the width-adjustable die-cutting device 7.
[0022] like Figure 1-2 The width-adjustable die-cutting device 7 includes a slide groove 9, which is located inside the connecting plate 5. A fixing block 10 is provided in the middle of the slide groove 9. A cylinder 11 is provided in the fixing block 10. A slider 12 is provided at the output end of the cylinder 11 and slides in the slide groove 9. A sliding rod 18 is provided in the slide groove 9 and passes through the slider 12. A die-cutting blade 13 is provided at the lower end of the slider 12. By pushing the slider 12 to slide in the slide groove 9 through the cylinder 11, the width between the die-cutting blades 13 can be adjusted, thereby enabling the cutting of plastic films of different widths.
[0023] like Figure 1 and 3 The pressing device 8 includes a hollow box 14, which is fixed to both sides of the die-cutting blade 13. The lowest end of the hollow box 14 is higher than the lowest end of the die-cutting blade 13. A pressure plate 15 is slidably disposed in the hollow box 14. An end plate 16 is disposed at the upper end of the pressure plate 15. A spring 17 is fixedly disposed on the end plate 16. The other end of the spring 17 is fixedly disposed on the top wall of the hollow box 14. The initial state of the spring 17 can satisfy that the lowest end of the pressure plate 15 is lower than the lowest end of the die-cutting blade 13. When the die-cutting blade 13 is die-cutting the plastic film, the pressure plate 15 will press the plastic film to prevent it from sliding.
[0024] In practical use, when die-cutting plastic film, the hydraulic cylinder 4 pushes the connecting plate 5 down, and the die-cutting blade 13 moves down. First, the pressure plate 15 will contact the plastic film below. The pressure plate 15 is located on both sides of the die-cutting blade 13 and presses the plastic film. As the die-cutting blade 13 continues to move down, the pressure plate 15 will slide in the hollow box 14. The spring 17 maintains the downward elastic force on the pressure plate 15 until the die-cutting blade 13 completes the cutting of the plastic film, ensuring a neat cut.
[0025] When it is necessary to adjust the die-cutting width of the plastic film, the cylinder 11 is activated. The cylinder 11 is a bidirectional cylinder. The cylinder 11 pushes the slider 12 to slide in the slide groove 9. The slider 12 drives the die-cutting blade 13 to adjust the spacing, thereby satisfying the purpose of cutting plastic films of different widths.
[0026] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.
Claims
1. A die-cutting device for plastic film with a width adjustment structure, comprising a support leg, a worktable at the upper end of the support leg, and a bracket at the upper end of the worktable, characterized in that: The top wall of the bracket is provided with a hydraulic cylinder facing downwards. The output end of the hydraulic cylinder is provided with a connecting plate. The upper end of the connecting plate is provided with a guide rod. The guide rod passes through the bracket. The connecting plate is provided with a width-adjustable die-cutting device. The width-adjustable die-cutting device is provided with a pressing device.
2. The die-cutting device for plastic film with a width adjustment structure according to claim 1, characterized in that: The width-adjustable die-cutting device includes a slide groove located inside a connecting plate. A fixing block is provided in the middle of the slide groove, and a cylinder is provided in the fixing block. A slider is provided at the output end of the cylinder and slides in the slide groove. A die-cutting blade is provided at the lower end of the slider.
3. The die-cutting device for plastic film with a width adjustment structure according to claim 2, characterized in that: The pressing device includes a hollow box, which is fixed to both sides of the die-cutting knife. A pressure plate is slidably disposed in the hollow box, and an end plate is disposed at the upper end of the pressure plate. A spring is fixedly disposed on the end plate, and the other end of the spring is fixedly disposed on the top wall of the hollow box.
4. A die-cutting device for plastic film with a width adjustment structure according to claim 3, characterized in that: The groove is provided with a sliding rod, which passes through the slider.
5. A die-cutting device for plastic film with a width adjustment structure according to claim 4, characterized in that: The worktable is equipped with guide rollers on both the front and rear sides.
6. A die-cutting device for plastic film with a width adjustment structure according to claim 5, characterized in that: The initial state of the spring is such that the lowest end of the pressure plate is lower than the lowest end of the die-cutting blade.
7. A die-cutting device for plastic film with a width adjustment structure according to claim 6, characterized in that: The lowest point of the hollow box is higher than the lowest point of the die-cutting blade.