Elastic cloth positioning die cutting bottom roller
By engraving positioning points on the surface of the die-cutting bottom roller and combining them with a movable ring and pull block structure, the problem of elastic fabric shrinkage during the die-cutting process is solved, ensuring precise cutting of the elastic fabric and improving the product yield.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUAIAN MINGHONG PRECISION MASCH CO LTD
- Filing Date
- 2025-05-26
- Publication Date
- 2026-04-21
AI Technical Summary
In existing technologies, elastic fabric shrinks back after cutting due to the elasticity of the material during the die-cutting process, affecting the product yield.
Positioning points are engraved on the surface of the die-cut bottom roller, and a movable ring and pull block structure are provided. The suction force is adjusted to fix the elastic cloth by cooperating with the suction holes and positioning points.
This technology enables elastic fabric to be perfectly cut into the required shape after die-cutting, thereby improving the product yield.
Smart Images

Figure CN224148417U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of elastic fabric die-cutting technology, and more specifically, it relates to an elastic fabric positioning die-cutting bottom roller. Background Technology
[0002] In the existing technology, during the die-cutting process of elastic fabric, the elastic fabric is mostly fixed to the roller through the suction holes on the roller surface.
[0003] However, because the elastic fabric has a certain degree of elasticity, and the suction force of the air holes on the roller surface alone cannot completely resist the elasticity of the elastic fabric, after the elastic fabric is cut at the cutting point of the die-cutting knife, the elastic fabric will have varying degrees of elastic tension and shrinkage, which will lead to the final cut shape not being guaranteed and will affect the yield rate of the product.
[0004] Therefore, in order to solve the above-mentioned technical problems, this application proposes an elastic fabric positioning die-cutting bottom roller. Utility Model Content
[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide an elastic fabric positioning die-cutting bottom roller.
[0006] To achieve the above objectives, the present invention provides the following technical solution:
[0007] An elastic fabric positioning die-cutting bottom roller includes: a die-cutting bottom roller body, wherein the surface of the die-cutting bottom roller body is provided with a cutting surface and a suction hole;
[0008] The surface of the die-cutting bottom roller body is engraved with positioning points, and the interior of the die-cutting bottom roller body is provided with a sliding groove, and the inner wall of the sliding groove is provided with a movable groove.
[0009] Preferably, an adjustment structure is installed inside the die-cutting bottom roller body. The adjustment structure includes a movable ring, which is movably installed inside the slide groove. A circular hole is opened on the surface of the movable ring, and a pull block is welded on the outer wall of the movable ring.
[0010] Preferably, the cut surface, positioning point, and air intake hole are staggered.
[0011] Preferably, the positioning point is square, circular, or triangular in shape.
[0012] Preferably, a friction pad is provided on the outer wall of the movable ring, and the friction pad is in contact with the inner wall of the groove.
[0013] Preferably, the circular hole and the suction hole cooperate with each other, and the pull block is slidably installed on the inner side of the movable groove.
[0014] Compared with the prior art, the present invention has the following beneficial effects:
[0015] 1. In this utility model, by engraving positioning points on the surface of the die-cutting bottom roller body, the positioning points protrude from the surface of the die-cutting bottom roller body. After the elastic cloth is cut at the cutting point of the die-cutting knife, the suction force of the air suction holes on the surface of the die-cutting bottom roller body will attract the elastic cloth to the surface of the die-cutting bottom roller body. With the positioning effect of the positioning points on the surface of the die-cutting bottom roller body, the elastic cloth can be perfectly cut into the required shape.
[0016] 2. In this utility model, the movable ring is rotatably installed inside the slide groove. By pulling the pull block, the pull block slides in the movable groove, and the angle of the movable ring inside the slide groove can be adjusted. The relative position between the round hole and the suction hole can be adjusted. When the round hole and the suction hole are aligned, the elastic cloth can be adsorbed onto the surface of the die-cutting bottom roller body through the suction hole. When the round hole and the suction hole are misaligned, the inside of the suction hole is not ventilated, thereby adjusting the ventilation state of the suction hole, reducing the loss of suction force, and ensuring the adsorption effect on the elastic cloth. Attached Figure Description
[0017] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:
[0018] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;
[0019] Figure 2 This is a side sectional view of the slide groove structure of this utility model;
[0020] Figure 3 This is a side view schematic diagram of the structure of the present utility model with adjustment.
[0021] 1. Die-cutting bottom roller body; 11. Cutting surface; 12. Positioning point; 13. Suction hole; 14. Slide groove; 15. Movable groove; 2. Adjustment structure; 21. Movable ring; 22. Round hole; 23. Pull block. Detailed Implementation
[0022] Please see Figure 1-3 An embodiment of an elastic fabric positioning die-cutting bottom roller provided by this utility model:
[0023] The die-cutting bottom roller body 1, the cutting surface 11 and the suction hole 13 used in this application are products that can be purchased directly on the market. Their principles and connection methods are existing technologies well known to those skilled in the art, so they will not be described in detail here.
[0024] An elastic fabric positioning die-cutting bottom roller includes: a die-cutting bottom roller body 1, the surface of which is provided with a cutting surface 11 and a suction hole 13;
[0025] The surface of the die-cutting bottom roller body 1 is engraved with positioning points 12, and the interior of the die-cutting bottom roller body 1 is provided with a sliding groove 14. The inner wall of the sliding groove 14 is provided with a movable groove 15. By engraving the positioning points 12 on the surface of the die-cutting bottom roller body 1, the positioning points 12 protrude from the surface of the die-cutting bottom roller body 1. After the elastic cloth is cut at the cutting point of the die-cutting knife, the suction force of the suction holes 13 on the surface of the die-cutting bottom roller body 1 will attract the elastic cloth to the surface of the die-cutting bottom roller body 1. With the positioning effect of the positioning points 12 on the surface of the die-cutting bottom roller body 1, the elastic cloth can be perfectly cut into the required shape.
[0026] Furthermore, an adjustment structure 2 is installed inside the die-cutting bottom roller body 1. The adjustment structure 2 includes a movable ring 21, which is movably installed inside the slide groove 14. A circular hole 22 is opened on the surface of the movable ring 21, and a pull block 23 is welded on the outer wall of the movable ring 21. The movable ring 21 is rotatably installed inside the slide groove 14. By pulling the pull block 23, the pull block 23 slides in the movable groove 15, which can adjust the angle of the movable ring 21 inside the slide groove 14 and adjust the relative position between the circular hole 22 and the suction hole 13. When the circular hole 22 is aligned with the suction hole 13, the elastic cloth can be adsorbed onto the surface of the die-cutting bottom roller body 1 through the suction hole 13. When the circular hole 22 is misaligned with the suction hole 13, the inside of the suction hole 13 is not ventilated, thereby adjusting the ventilation state of the suction hole 13, reducing the loss of suction force, and ensuring the adsorption effect on the elastic cloth.
[0027] Furthermore, the cutting surface 11, positioning point 12, and suction hole 13 are staggered, and the setting of positioning point 12 and suction hole 13 will not affect the cooperation between the cutting surface 11 and the cutter, thus ensuring the die-cutting effect on the elastic fabric.
[0028] Furthermore, the positioning point 12 is square, circular or triangular in shape, and protrudes from the surface of the die-cutting bottom roller body 1. Under the positioning action of the positioning point 12, the elastic fabric can be positioned.
[0029] Furthermore, a friction pad is provided on the outer wall of the movable ring 21, and the friction pad is in contact with the inner wall of the slide groove 14. The friction pad can ensure the installation stability of the movable ring 21 in the slide groove 14 and prevent displacement, which would change the position between the suction hole 13 and the round hole 22.
[0030] Furthermore, the round hole 22 and the suction hole 13 cooperate with each other, and the pull block 23 is slidably installed on the inner side of the movable groove 15. When the round hole 22 and the suction hole 13 are aligned, air can flow between the round hole 22 and the suction hole 13. When the round hole 22 and the suction hole 13 are misaligned, air cannot flow in the suction hole 13. The ventilation state of the suction hole 13 can be adjusted, which can reduce the loss of suction and ensure the adsorption effect on the elastic cloth.
[0031] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any way. Those skilled in the art can readily implement this utility model based on the accompanying drawings and the above description. However, any modifications, alterations, or equivalent variations made by those skilled in the art without departing from the scope of the utility model's technical solution, utilizing the disclosed technical content, are considered equivalent embodiments of this utility model. Furthermore, any equivalent changes, alterations, or variations made to the above embodiments based on the essential technology of this utility model are still within the protection scope of this utility model's technical solution.
Claims
1. An elastic cloth positioning die cutting bottom roller, comprising: The die-cutting bottom roller body (1) has a cutting surface (11) and a suction hole (13) on its surface; Its features are: The surface of the die-cutting bottom roller body (1) is engraved with positioning points (12), and the interior of the die-cutting bottom roller body (1) is provided with a sliding groove (14), and the inner wall of the sliding groove (14) is provided with a movable groove (15).
2. An elastic cloth positioning die cutting bottom roller according to claim 1, wherein: An adjustment structure (2) is installed inside the die-cutting bottom roller body (1). The adjustment structure (2) includes a movable ring (21). The movable ring (21) is movably installed inside the slide groove (14). A round hole (22) is opened on the surface of the movable ring (21). A pull block (23) is welded on the outer wall of the movable ring (21).
3. A flexible cloth positioning die cutting bottom roller as claimed in claim 1, wherein: The cut surface (11), positioning point (12), and air intake hole (13) are staggered.
4. A flexible cloth positioning die cutting bottom roller as claimed in claim 1, wherein: The positioning point (12) is square, circular or triangular in shape.
5. An elastic cloth positioning die cutting bottom roller according to claim 2, wherein: The outer wall of the movable ring (21) is provided with a friction pad, and the friction pad is in contact with the inner wall of the groove (14).
6. A flexible cloth positioning die cutting bottom roller as claimed in claim 2, wherein: The circular hole (22) and the suction hole (13) cooperate with each other, and the pull block (23) is slidably installed on the inner side of the movable groove (15).