A label printing cold blocking device

By designing an anti-sticking device for cold foil stamping in label printing, and utilizing scraping blocks and telescopic components to achieve adaptive peeling and cleaning of metal foil, the problem of difficult peeling of metal foil caused by UV-cured adhesives is solved, thereby improving printing quality and equipment operating efficiency.

CN224528260UActive Publication Date: 2026-07-21LEFENG PACKAGING TECH (WUXI) CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
LEFENG PACKAGING TECH (WUXI) CO LTD
Filing Date
2025-09-25
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

During the cold foil stamping process, the UV-cured adhesive forms a high-viscosity pressure-sensitive adhesive layer, making it difficult for the metal foil to be peeled off the substrate smoothly, affecting printing quality and equipment operation.

Method used

A cold foil stamping process anti-sticking device for label printing was designed, comprising a peeling device and a cleaning device. The device uses a scraper block to peel off the metal foil by reciprocating movement, and adaptive peeling and cleaning are achieved through a telescopic component and a hydraulic device to avoid metal foil residue.

Benefits of technology

Effectively peels off metal foil, avoiding equipment damage, reducing metal foil waste and environmental pollution, and ensuring printing quality and normal equipment operation.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to label printing technical field, concretely relates to a kind of cold-pressing process anti-sticking device for label printing, including base, the base top is equipped with the stripping device that is stripped to metal foil;The stripping device includes first rotary lever, and the first rotary lever is rotatably connected in the base front by bearing, and the first rotary lever outer wall is fixedly provided with carousel, and the carousel front is fixedly connected with driving rod, and the base front is rotatably connected with second rotary lever by bearing.The utility model is stripped to metal foil by reciprocating movement of scraping block, solve the problem that metal foil is difficult to strip smoothly in cold-pressing process due to the high viscosity pressure-sensitive adhesive layer formed by UV curing adhesive, can effectively strip metal foil from substrate, by the self-shrinkage function of first spring and telescopic rod, the device can adapt to the uneven condition of metal foil surface, avoid stripping failure or equipment damage due to uneven surface.
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Description

Technical Field

[0001] This utility model relates to the field of label printing technology, specifically to an anti-sticking device for cold foil stamping process in label printing. Background Technology

[0002] The widespread use of labels and the continuous development of label varieties have naturally promoted the development of label printing technology. Label printing covers all printing methods such as planographic, relief, intaglio, and screen printing. The application of these methods varies from country to country. However, the global label development trend in recent years shows that flexographic printing, narrow-web rotary printing, and digital printing are also development trends in label printing.

[0003] Patent document CN210190848U discloses a label printing machine, including a worktable. A dust collection chamber is installed above the worktable, and an electrostatic dust removal device is installed inside the dust collection chamber. An ink tank is installed on one side of the dust collection chamber, and a drying chamber is installed on one side of the ink tank. A drying device is installed inside the drying chamber. Connecting plates are provided on both sides of the worktable. A motor compartment is installed on the outer side of one of the connecting plates, and a motor is installed inside the motor compartment. A printing roller is installed inside the connecting plate, and a pressure roller is installed below the printing roller. A fixing plate is installed above the connecting plates, and a support base is installed below the worktable. The support base is connected to the worktable via a support column, and a first spring is installed at one end of the support column. By incorporating the dust collection chamber, the machine's performance is improved by preventing dust from affecting the printing process and the printing quality.

[0004] Although the aforementioned application documents improve printing quality by setting up a dust removal chamber to prevent dust from affecting the machine and printing quality during the printing process, the UV-curing adhesive is cured by ultraviolet light during the cold foil stamping process, forming a high-viscosity pressure-sensitive adhesive layer, which makes it difficult to peel off the metal foil smoothly.

[0005] Therefore, a cold foil stamping anti-sticking device for label printing is proposed to solve the problems mentioned above. Utility Model Content

[0006] To address the shortcomings of existing technologies, this utility model provides an anti-sticking device for cold foil stamping in label printing, which solves the problems mentioned in the background art.

[0007] To achieve the above objectives, the present invention provides the following technical solution: including a base, wherein a peeling device for peeling off metal foil is assembled on the top of the base;

[0008] The peeling device includes a first rotating rod, which is rotatably connected to the front of the base via a bearing. A turntable is fixedly sleeved on the outer wall of the first rotating rod, and a drive rod is fixedly connected to the front of the turntable. A second rotating rod is rotatably connected to the front of the base via a bearing. A movable rod is fixedly sleeved on the outer wall of the second rotating rod, and a sliding groove is formed on the front of the inner wall of the movable rod. A limit block is fixedly connected to the front of the base, and a moving rod is slidably connected to the inner wall of the limit block. A scraping block is assembled on the top of the base, and a telescopic component for retracting and resetting the scraping block is assembled on the top of the base.

[0009] Preferably, the telescopic assembly includes a first spring, which is fixedly connected to the top of the scraping block, a telescopic rod is mounted at the bottom of the moving rod, the scraping block is fixedly connected to the bottom of the telescopic rod, and a connecting rod is fixedly connected to the front of the telescopic rod.

[0010] Preferably, a toothed ring is fixedly connected to the bottom of the movable rod, a toothed block is fixedly connected to the top of the movable rod, the toothed ring and the toothed block mesh with each other, a motor is fixedly connected to the back of the base, the first rotating rod moves through the base, and the extension end of the first rotating rod extends toward the back of the base.

[0011] Preferably, a limiting frame is fitted on the top of the base, a guide roller is fitted inside the limiting frame, and a collection box for collecting metal foil is fitted on the top of the base.

[0012] Preferably, the top of the base is equipped with a cleaning device to prevent metal foil from adhering to the outer wall of the scraper block.

[0013] Preferably, the cleaning device includes a first hydraulic chamber, which is fixedly connected to the front of the base. Inside the first hydraulic chamber, a first hydraulic rod is slidably connected to a piston at one end, and a second spring is movably sleeved on the outer wall of the first hydraulic rod.

[0014] Preferably, a second hydraulic chamber is fixedly connected to the top of the scraping block, a second hydraulic rod is slidably connected to one end of the piston inside the second hydraulic chamber, an inclined block is fixedly connected to the bottom of the second hydraulic rod, and the first hydraulic chamber and the second hydraulic chamber are connected by a connecting hose.

[0015] Compared with the prior art, this utility model provides an anti-sticking device for cold foil stamping in label printing, which has the following beneficial effects:

[0016] 1. By using the reciprocating movement of the scraping block to peel off the metal foil, the problem of the metal foil being difficult to peel off smoothly during the cold stamping process due to the high viscosity pressure-sensitive adhesive layer formed by the UV-cured adhesive is solved. The metal foil can be effectively peeled off from the substrate. Through the self-retracting function of the first spring and the telescopic rod, the device can adapt to the unevenness of the metal foil surface and avoid peeling failure or equipment damage caused by the uneven surface.

[0017] Second, it enables the cleaning of residual metal foil on the outer wall of the scraper, preventing the accumulation of metal foil on the equipment and affecting its normal operation. The cleaned metal foil is collected in a collection box for easy subsequent processing and recycling, reducing the waste of metal foil and environmental pollution. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a front view of part of the structure of this utility model;

[0020] Figure 3 This is a bottom view of part of the structure of this utility model;

[0021] Figure 4 This utility model Figure 2 Enlarged structural diagram at point A in the middle.

[0022] In the diagram: 1. Base; 2. Peeling device; 21. First rotating rod; 22. Turntable; 23. Drive rod; 24. Motor; 25. Second rotating rod; 26. Movable rod; 27. Slide groove; 28. Gear ring; 29. ​​Limiting block; 210. Moving rod; 211. Telescopic rod; 212. Connecting rod; 213. First spring; 214. Scraping block; 3. Cleaning device; 31. First hydraulic chamber; 32. First hydraulic rod; 33. Second spring; 34. Second hydraulic rod; 35. Inclined block; 36. Second hydraulic chamber; 4. Limiting frame; 5. Collection box. Detailed Implementation

[0023] 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.

[0024] Example 1

[0025] See Figures 1-4 This embodiment provides an anti-sticking device for cold foil stamping process in label printing, including a base 1, and a peeling device 2 for peeling off metal foil is mounted on the top of the base 1.

[0026] The peeling device 2 includes a first rotating rod 21, which is rotatably connected to the front of the base 1 via a bearing. A turntable 22 is fixedly sleeved on the outer wall of the first rotating rod 21. A drive rod 23 is fixedly connected to the front of the turntable 22. A second rotating rod 25 is rotatably connected to the front of the base 1 via a bearing. A movable rod 26 is fixedly sleeved on the outer wall of the second rotating rod 25. A sliding groove 27 is opened on the front of the inner wall of the movable rod 26. A limit block 29 is fixedly connected to the front of the base 1. A moving rod 210 is slidably connected to the inner wall of the limit block 29. A scraping block 214 is assembled on the top of the base 1. A telescopic component for the retraction and repositioning of the scraping block 214 is assembled on the top of the base 1.

[0027] The telescopic assembly includes a first spring 213, which is fixedly connected to the top of the scraping block 214. A telescopic rod 211 is mounted on the bottom of the moving rod 210. The scraping block 214 is fixedly connected to the bottom of the telescopic rod 211. A connecting rod 212 is fixedly connected to the front of the telescopic rod 211.

[0028] A toothed ring 28 is fixedly connected to the bottom of the movable rod 26, and a toothed block is fixedly connected to the top of the moving rod 210. The toothed ring 28 and the toothed block mesh with each other. A motor 24 is fixedly connected to the back of the base 1. The first rotating rod 21 moves through the base 1, and the extension end of the first rotating rod 21 extends toward the back of the base 1.

[0029] The base 1 is equipped with a limiting frame 4 on the top, and a guide roller is installed inside the limiting frame 4. The base 1 is also equipped with a collection box 5 for collecting metal foil.

[0030] In practical use, the substrate is placed inside the limiting frame 4, and the motor 24 is started. The motor 24 drives the first rotating rod 21 to rotate, the first rotating rod 21 drives the turntable 22 to rotate, the turntable 22 drives the drive rod 23 to rotate, the drive rod 23 drives the slide 27 to move to the right, the slide 27 drives the movable rod 26 to move to the right, and the movable rod 26 is limited by the second rotating rod 25 to realize the left and right reciprocating movement of the movable rod 26. The movable rod 26 drives the bottom toothed ring 28 to drive the moving rod 210 to move back and forth. The moving rod 210 drives the telescopic rod 211 and the scraping block 214 to peel off the metal foil. At the same time, when encountering abnormal places, the first spring 213 and the telescopic rod 211 can self-retract, which will not affect the reciprocating movement of the scraping block 214.

[0031] Example 2

[0032] See Figures 1-4 Based on Embodiment 1, the top of the base 1 is equipped with a cleaning device 3 for preventing metal foil from adhering to the outer wall of the scraping block 214.

[0033] The cleaning device 3 includes a first hydraulic chamber 31, which is fixedly connected to the front of the base 1. Inside the first hydraulic chamber 31, a piston is slidably connected to a first hydraulic rod 32, and a second spring 33 is movably sleeved on the outer wall of the first hydraulic rod 32.

[0034] The top of the scraping block 214 is fixedly connected to a second hydraulic chamber 36. Inside the second hydraulic chamber 36, a piston is slidably connected to a second hydraulic rod 34. The bottom of the second hydraulic rod 34 is fixedly connected to an inclined block 35. The first hydraulic chamber 31 and the second hydraulic chamber 36 are connected by a connecting hose.

[0035] When the above-mentioned equipment is used, when the telescopic rod 211 moves to the right, it squeezes the first hydraulic rod 32, causing the first hydraulic rod 32 to move to the right and drive the second spring 33 to compress. During the process of the first hydraulic rod 32 moving to the right, the internal pressure of the first hydraulic chamber 31, the second hydraulic chamber 36, and the connecting hose increases, causing the second hydraulic rod 34 to move forward. The second hydraulic rod 34 drives the inclined block 35 to move forward, cleaning the metal foil on the outer wall of the scraping block 214. The cleaned metal foil falls into the collection box 5.

[0036] The installation, connection, or setting methods disclosed in this embodiment are all common mechanical connection methods. As long as they can achieve their beneficial effects, they can be implemented. Therefore, this embodiment will not elaborate on their specific structural composition and working principle.

[0037] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art 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 appended claims and their equivalents.

Claims

1. A cold foil stamping anti-sticking device for label printing, characterized in that: Includes a base (1), and the top of the base (1) is equipped with a peeling device (2) for peeling off metal foil; The peeling device (2) includes a first rotating rod (21), which is rotatably connected to the front of the base (1) via a bearing. A turntable (22) is fixedly sleeved on the outer wall of the first rotating rod (21). A drive rod (23) is fixedly connected to the front of the turntable (22). A second rotating rod (25) is rotatably connected to the front of the base (1) via a bearing. A movable rod (26) is fixedly sleeved on the outer wall of the second rotating rod (25). A sliding groove (27) is opened on the front of the inner wall of the movable rod (26). A limiting block (29) is fixedly connected to the front of the base (1). A moving rod (210) is slidably connected to the inner wall of the limiting block (29). A scraping block (214) is assembled on the top of the base (1). A telescopic assembly for the retraction and repositioning of the scraping block (214) is assembled on the top of the base (1).

2. The anti-sticking device for cold foil stamping process in label printing according to claim 1, characterized in that: The telescopic assembly includes a first spring (213), which is fixedly connected to the top of the scraping block (214). The bottom of the moving rod (210) is equipped with a telescopic rod (211), the scraping block (214) is fixedly connected to the bottom of the telescopic rod (211), and a connecting rod (212) is fixedly connected to the front of the telescopic rod (211).

3. The anti-sticking device for cold foil stamping process in label printing according to claim 2, characterized in that: The bottom of the movable rod (26) is fixedly connected to a toothed ring (28), the top of the movable rod (210) is fixedly connected to a toothed block, the toothed ring (28) and the toothed block mesh with each other, the back of the base (1) is fixedly connected to a motor (24), the first rotating rod (21) moves through the base (1), and the extension end of the first rotating rod (21) extends toward the back of the base (1).

4. The anti-sticking device for cold foil stamping process in label printing according to claim 3, characterized in that: The base (1) is equipped with a limiting frame (4) on top, and a guide roller is installed inside the limiting frame (4). The base (1) is also equipped with a collection box (5) for collecting metal foil.

5. The anti-sticking device for cold foil stamping process in label printing according to claim 1, characterized in that: The base (1) is equipped with a cleaning device (3) on top to prevent metal foil from adhering to the outer wall of the scraper block (214).

6. The anti-sticking device for cold foil stamping process in label printing according to claim 5, characterized in that: The cleaning device (3) includes a first hydraulic chamber (31), which is fixedly connected to the front of the base (1). A first hydraulic rod (32) is slidably connected to one end of the first hydraulic chamber (31) by a piston. A second spring (33) is movably sleeved on the outer wall of the first hydraulic rod (32).

7. The anti-sticking device for cold foil stamping process in label printing according to claim 6, characterized in that: The top of the scraping block (214) is fixedly connected to a second hydraulic chamber (36), and a second hydraulic rod (34) is slidably connected to one end of the second hydraulic chamber (36). A wedge (35) is fixedly connected to the bottom of the second hydraulic rod (34). The first hydraulic chamber (31) and the second hydraulic chamber (36) are connected by a connecting hose.