Fixing device for a label paper die cutter

By combining the predictive structure with the paper-pressing braking structure, the thickness of the label paper is measured and adjusted in real time, which solves the problem of unstable pressure on label paper of different thicknesses in the label paper die-cutting machine, realizes stable pressure application, and improves the applicability and processing quality of the die-cutting machine.

CN224527387UActive Publication Date: 2026-07-21天津江津印刷科技有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
天津江津印刷科技有限公司
Filing Date
2025-08-18
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

The existing label die-cutting machine's fixing device cannot maintain stable pressure when dealing with label paper of different thicknesses, resulting in inconsistent processing quality.

Method used

By employing a combination of a predictive structure and a paper-pressing braking structure, the thickness of the label paper is measured in real time through a linear displacement sensor and a controller, and the stroke of the lifting and pressing paper section is automatically adjusted to ensure that stable pressure is applied to label papers of different thicknesses.

Benefits of technology

It enables automated measurement and adjustment of pressure when changing label paper of different thicknesses, ensuring uniform stress on the label paper during die-cutting and improving the applicability and processing quality of the die-cutting machine.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to label paper processing technical field, concretely is fixed device for label paper die -cutting machine, including bottom plate, still include: with the prediction structure that connects with bottom plate, prediction structure includes inclined bracing frame, the inclined bracing frame fixedly connected with central shaft, and a plurality of groups of paper press frame are installed on the central shaft, and the paper press frame is connected with two groups of protruding shafts, and the protruding shaft slidingly connects with the frame body, and the frame body is connected with the connecting frame, and the inclined bracing frame fixedly connected with a plurality of groups of linear displacement sensor, with the paper press brake structure that connects with bottom plate, and the paper press brake structure includes with the lifting paper press part that connects with bottom plate, the lifting paper press part is connected with two groups of face expansion part, the utility model discloses through the mutual cooperation of prediction structure and paper press brake structure, to replace different label paper, first automatic label paper thickness measurement operation, then to paper press brake structure carries out stroke adjustment operation, so as to the label paper of different thickness is added stable and same pressure, improves the applicability of the utility model.
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Description

Technical Field

[0001] This utility model relates to the field of label paper processing technology, specifically a fixing device for a label paper die-cutting machine. Background Technology

[0002] Label paper is a type of cardboard used to record data and information about specific items. It is characterized by its ease of access and convenient use, helping users to quickly and effectively record and retrieve information. Die-cutting machines use steel knives, metal molds, and steel wire (or templates engraved from steel plates) to apply pressure through an imprinting plate to cut the label paper into a specific shape. It is an important piece of equipment for post-printing packaging processing.

[0003] Existing die-cutting machines require pressure to fix the label paper during use in order to accurately die-cut the label paper. However, due to the change of label paper during processing, the die-cutting machine needs to process label paper of different thicknesses. This causes the extension and contraction stroke of the compression spring of the general fixing device to change, and the pressure applied by the fixing device to the label paper also changes accordingly, which has certain limitations.

[0004] To address this, those skilled in the art have proposed a fixing device for label die-cutting machines to solve the problems mentioned in the background. Utility Model Content

[0005] The purpose of this invention is to provide a fixing device for a label paper die-cutting machine to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] The fixing device for the label die-cutting machine includes a base plate and also includes:

[0008] A predictive structure connected to a base plate includes a diagonal support frame fixedly connected to the base plate, a controller fixedly connected to the diagonal support frame, a central shaft fixedly connected to the diagonal support frame, multiple paper pressing frames rotatably mounted on the central shaft, an elastic telescopic component installed between the paper pressing frames and the diagonal support frame, the multiple paper pressing frames being linearly arranged on the central shaft, each paper pressing frame being fixedly connected to two symmetrically arranged protruding shafts, the protruding shafts being slidably connected to a frame, the two frames being fixedly connected to a connecting frame, and multiple linear displacement sensors fixedly connected to the diagonal support frame, the moving end of the linear displacement sensor being fixedly connected to the connecting frame;

[0009] A paper-pressing braking structure connected to a base plate, the paper-pressing braking structure including a lifting paper-pressing part connected to the base plate, the lifting paper-pressing part being connected to two sets of expanding parts.

[0010] As a further improvement of this utility model: the elastic telescopic component includes an arc-shaped sleeve fixedly connected to the inclined support frame, a first spring fixedly installed inside the arc-shaped sleeve, an arc-shaped strip slidably connected to the first spring, and the arc-shaped strip fixedly connected to the paper press frame.

[0011] As a further improvement of this utility model: the lifting and pressing paper part includes a fixed frame fixedly connected to the base plate, the fixed frame is fixedly connected to two sets of hydraulic telescopic frames, the moving ends of the two sets of hydraulic telescopic frames are jointly fixedly connected to a moving plate, the moving plate is fixedly connected to multiple sets of pressure sensors, the pressure sensors are fixedly connected to a second spring, the second spring is fixedly connected to a pressure plate, the pressure plate is connected to two sets of expanding sections, and the pressure plate is fixedly connected to a guide rod that is slidably connected to the moving plate.

[0012] As a further improvement of this utility model: the expanded section includes a motor base fixedly connected to the pressure plate, the motor base is fixedly connected to a dual-output shaft motor, and the output end of the dual-output shaft motor is fixedly connected to the expanded panel.

[0013] As a further improvement of this utility model: both the side of the expansion panel facing the bottom plate and the side of the pressure plate facing the bottom plate are provided with guide arc surfaces.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] When the label paper is replaced and moves on the base plate, the label paper first moves between the pressure holder and the base plate. The moving label paper then partially lifts the pressure holder, causing it to rotate around a protruding shaft. The elastic telescopic component is compressed by the pressure holder, and the moving protruding shaft drives the frame to move. Simultaneously, the protruding shaft and the frame slide relative to each other, causing the frame to move the connecting frame. A linear displacement sensor performs real-time displacement measurement. The controller determines the approximate position of the label paper by judging the rotation of each pressure holder, assisting in judging the movement deviation of the label paper. Based on the displacement data measured by the linear displacement sensor, the controller calculates the thickness of the label paper to be pressed. Then, the controller adjusts the stroke of the lifting pressure unit so that after the label paper moves below the lifting pressure unit, the lifting pressure unit applies pressure to the label paper with the same pressure. This invention, through the cooperation of the predictive structure and the pressure braking structure, automatically measures the thickness of the label paper before adjusting the stroke of the pressure braking structure when changing different labels, thus applying stable and consistent pressure to label papers of different thicknesses and improving the applicability of this invention. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model.

[0017] Figure 2This is a three-dimensional structural diagram of the paper-pressing braking structure of this utility model.

[0018] Figure 3 This is a schematic diagram of the structure of the elastic telescopic component of this utility model.

[0019] Figure 4 This is a three-dimensional structural diagram showing the interaction between the frame, connecting bracket, and linear displacement sensor of this utility model.

[0020] In the diagram: 1. Base plate; 2. Predictive structure; 3. Diagonal brace; 4. Controller; 5. Central shaft; 6. Paper presser; 7. Elastic telescopic component; 8. Frame; 9. Connecting frame; 10. Linear displacement sensor; 11. Paper press braking structure; 12. Lifting paper press section; 13. Expanding section; 14. Arc sleeve; 15. Arc strip; 16. Fixed frame; 17. Hydraulic telescopic frame; 18. Moving plate; 19. Pressure sensor; 20. Pressing plate; 21. Guide rod; 22. Motor base; 23. Dual output shaft motor; 24. Expanding panel; 25. Guide arc surface; 26. Protruding shaft. Detailed Implementation

[0021] The technical solution of this utility model will be further described in detail below with reference to specific embodiments.

[0022] Example 1, see Figures 1-4 As shown, the fixing device for the label die-cutting machine includes a base plate 1, and also includes:

[0023] The prediction structure 2 is connected to the base plate 1. The prediction structure 2 includes a diagonal support frame 3 fixedly connected to the base plate 1. A controller 4 is fixedly connected to the diagonal support frame 3. A central shaft 5 is fixedly connected to the diagonal support frame 3. Multiple paper pressing frames 6 are rotatably mounted on the central shaft 5. An elastic telescopic component 7 is installed between the paper pressing frames 6 and the diagonal support frame 3. The multiple paper pressing frames 6 are linearly arranged on the central shaft 5. Each paper pressing frame 6 is fixedly connected to two sets of symmetrically arranged protruding shafts 26. A frame 8 is slidably connected to the protruding shafts 26. A connecting frame 9 is fixedly connected to both sets of frame 8. Multiple linear displacement sensors 10 are fixedly connected to the diagonal support frame 3. The moving end of the linear displacement sensor 10 is fixedly connected to the connecting frame 9.

[0024] The paper pressing and braking structure 11 is connected to the base plate 1. The paper pressing and braking structure 11 includes a lifting paper pressing part 12 connected to the base plate 1. The lifting paper pressing part 12 is connected to two sets of expanding parts 13.

[0025] When the label paper is replaced and moves on the base plate 1, the label paper first moves between the pressure holder 6 and the base plate 1. Then, the moving label paper partially lifts the pressure holder 6, and the pressure holder 6 rotates around the protruding shaft 26. The elastic telescopic member 7 is compressed by the pressure holder 6, and the moving protruding shaft 26 drives the frame 8 to move. At the same time, the protruding shaft 26 and the frame 8 slide relative to each other. The frame 8 drives the connecting frame 9 to move. The linear displacement sensor 10 performs real-time displacement measurement. The controller 4 judges the approximate position of the label paper by judging the rotation of each pressure holder 6, and assists in judging the movement and offset of the label paper. The controller 4 calculates the thickness of the label paper to be pressed according to the displacement data measured by the linear displacement sensor 10. Then, the controller 4 adjusts the stroke of the lifting pressure unit 12 so that after the label paper moves to the bottom of the lifting pressure unit 12, the lifting pressure unit 12 applies pressure to the label paper with the same pressure. This invention utilizes the cooperation between the predictive structure 2 and the paper-pressing braking structure 11 to automatically measure the thickness of the label paper before adjusting the stroke of the paper-pressing braking structure 11 when changing different label papers. This allows for the application of stable and consistent pressure to label papers of different thicknesses, thereby improving the applicability of this invention.

[0026] In one embodiment, the elastic telescopic member 7 includes an arc-shaped sleeve 14 fixedly connected to the inclined support frame 3. A first spring is fixedly installed inside the arc-shaped sleeve 14. The first spring is fixedly connected to an arc-shaped strip 15 slidably connected to the arc-shaped sleeve 14. The arc-shaped strip 15 is fixedly connected to the paper presser 6. During the process of the paper presser 6 being pushed, the paper presser 6 drives the arc-shaped strip 15 to rotate into the arc-shaped sleeve 14, and the arc-shaped strip 15 compresses the first spring. As the label paper separates from the paper presser 6, the compressed first spring pushes the arc-shaped strip 15 to move and reset.

[0027] In one embodiment, the lifting and pressing paper unit 12 includes a fixed frame 16 fixedly connected to the base plate 1. The fixed frame 16 is fixedly connected to two sets of hydraulic telescopic frames 17. The moving ends of the two sets of hydraulic telescopic frames 17 are jointly fixedly connected to a moving plate 18. The moving plate 18 is fixedly connected to multiple sets of pressure sensors 19. The pressure sensors 19 are fixedly connected to a second spring. The second spring is fixedly connected to a pressure plate 20. The pressure plate 20 is connected to two sets of expanding sections 13. The pressure plate 20 is fixedly connected to a guide rod 21 that is slidably connected to the moving plate 18. The controller 4 adjusts the extension stroke of the hydraulic telescopic frame 17. The hydraulic telescopic frame 17 drives the moving plate 18 to move, which in turn drives the pressure sensor 19 to move. The pressure sensor 19 drives the pressure plate 20 to move through the second spring. After the pressure plate 20 presses on the label paper, the second spring is squeezed by the pressure plate 20 and the moving plate 18. During this period, the guide rod 21 slides relative to the moving plate 18, and the pressure sensor 19 performs real-time pressure measurement to ensure the consistency of the pressure applied by the pressure plate 20 to the label paper.

[0028] In one embodiment, the expanding section 13 includes a motor base 22 fixedly connected to the pressure plate 20. A dual-axis motor 23 is fixedly connected to the motor base 22, and the output end of the dual-axis motor 23 is fixedly connected to the expanding panel 24. The dual-axis motor 23 drives the expanding panel 24 to rotate and press against the label paper, thereby increasing the pressure area of ​​the paper-pressing braking structure 11 on the label paper.

[0029] Example 2, based on Example 1, see [link / reference] Figure 1 and Figure 2 The expanding panel 24 facing the base plate 1 and the pressure plate 20 facing the base plate 1 are both provided with guide arc surfaces 25. By providing guide arc surfaces 25, the movable label paper can be moved between the expanding panel 24 and the base plate 1 and between the pressure plate 20 and the base plate 1.

[0030] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A fixing device for a label die-cutting machine, comprising a base plate, characterized in that, Also includes: A predictive structure connected to a base plate includes a diagonal support frame fixedly connected to the base plate, a controller fixedly connected to the diagonal support frame, a central shaft fixedly connected to the diagonal support frame, multiple paper pressing frames rotatably mounted on the central shaft, an elastic telescopic component installed between the paper pressing frames and the diagonal support frame, the multiple paper pressing frames being linearly arranged on the central shaft, each paper pressing frame being fixedly connected to two symmetrically arranged protruding shafts, the protruding shafts being slidably connected to a frame, the two frames being fixedly connected to a connecting frame, and multiple linear displacement sensors fixedly connected to the diagonal support frame, the moving end of the linear displacement sensor being fixedly connected to the connecting frame; A paper-pressing braking structure connected to a base plate, the paper-pressing braking structure including a lifting paper-pressing part connected to the base plate, the lifting paper-pressing part being connected to two sets of expanding parts.

2. The fixing device for a label paper die-cutting machine according to claim 1, characterized in that, The elastic telescopic component includes an arc-shaped sleeve fixedly connected to the diagonal brace, a first spring fixedly installed inside the arc-shaped sleeve, an arc-shaped strip slidably connected to the arc-shaped sleeve and fixedly connected to the paper presser.

3. The fixing device for a label paper die-cutting machine according to claim 1, characterized in that, The lifting and pressing paper unit includes a fixed frame fixedly connected to the base plate. The fixed frame is fixedly connected to two sets of hydraulic telescopic frames. The moving ends of the two sets of hydraulic telescopic frames are fixedly connected to a moving plate. The moving plate is fixedly connected to multiple sets of pressure sensors. The pressure sensors are fixedly connected to a second spring. The second spring is fixedly connected to a pressure plate. The pressure plate is connected to two sets of expanding sections. The pressure plate is fixedly connected to a guide rod that is slidably connected to the moving plate.

4. The fixing device for a label paper die-cutting machine according to claim 3, characterized in that, The expanded section includes a motor base fixedly connected to the pressure plate, a dual-output shaft motor fixedly connected to the motor base, and an expanded panel fixedly connected to the output end of the dual-output shaft motor.

5. The fixing device for a label paper die-cutting machine according to claim 4, characterized in that, Both the side of the expansion panel facing the base plate and the side of the pressure plate facing the base plate are provided with guide arc surfaces.