Self-adhesive label winding drum die-cutting machine

Abstract

The utility model relates to the technical field of self-adhesive label processing, in particular to a self-adhesive label winding drum die-cutting machine which comprises a rack, the rack is rotationally provided with a paper releasing roller, a guide roller, a waste collecting roller and a paper collecting winding roller, the rack is provided with a die-cutting device, the rack is further fixedly provided with a cleaning roller assembly, and the cleaning roller assembly is located between the die-cutting device and the paper collecting winding roller. The cleaning roller assembly comprises a cleaning roller, a connecting structure and a scraper assembly, the scraper assembly is located above the cleaning roller, the scraper assembly is fixedly connected with the connecting structure, the connecting structure is fixedly connected with the cleaning roller, and the cleaning roller is fixedly connected with the rack; the cleaning roller assembly is arranged between the die cutting device and the paper collecting winding roller, a scraper in the scraper assembly scrapes the exposed backing paper surface and residual glue between two stripped labels, mutual adhesion between the backing paper during winding is avoided, and it is guaranteed that the use performance of follow-up self-adhesive labels is not affected; dust and other sundries are prevented from adhering to the surface of the backing paper, and labels are prevented from being polluted.

Description

Technical Field

[0001] This application relates to the field of self-adhesive label processing technology, and in particular to a self-adhesive label roll die-cutting machine. Background Technology

[0002] Self-adhesive labels have advantages over traditional labels, such as no need for glue, paste, or water, no pollution, and saving labeling time. They have a wide range of applications and are convenient and quick to use. Self-adhesive labels are composite materials made of paper, film, or other special materials as the face stock, coated with adhesive on the back, and with silicone-coated release paper as the backing paper. After printing, die-cutting, and other processing, they become finished labels.

[0003] Die-cutting machines, also known as die-cutting machines, cutting machines, or CNC punching machines, are mainly used for die-cutting, bonding, and automatic waste removal of various non-metallic materials, self-adhesive labels, EVA, double-sided tape, electronic products, mobile phone pads, etc. They apply pressure through a printing plate to cut printed materials or cardboard into a certain shape.

[0004] Existing self-adhesive label die-cutting machines directly rewind labels after they pass through the peeling roller. During the process of removing excess film, each label has a certain gap, and residual adhesive easily remains on the backing paper between the labels. This residual adhesive increases the stickiness of the backing paper, causing the backing papers to stick together during rewinding. Consequently, it becomes difficult to peel off smoothly during the subsequent automatic labeling process. This adhesion can easily cause the labels to tear or the backing paper to break, seriously affecting the performance of the labels. The residual adhesive also easily attracts dust and other debris, thus affecting the hygiene and safety of the labels, especially in the food and pharmaceutical industries, increasing potential safety hazards. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides a self-adhesive label roll die-cutting machine, which addresses the issue of residual adhesive remaining on the backing paper during the waste discharge process in existing self-adhesive label die-cutting machines. The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows:

[0006] A self-adhesive label roll die-cutting machine, comprising:

[0007] The frame is rotatably equipped with a paper feeding roller, a guide roller, a waste collection roller, and a paper take-up roller;

[0008] The die-cutting device is connected to the frame and is located above the paper feed roll and the paper take-up roll, and below the waste collection roll.

[0009] The cleaning roller assembly is fixedly connected to the frame and is located between the die-cutting device and the take-up roll. The cleaning roller assembly includes a cleaning roller, a connecting structure, and a doctor blade assembly. The doctor blade assembly is located above the cleaning roller and is fixedly connected to the connecting structure. The connecting structure is fixedly connected to the cleaning roller, and the cleaning roller is fixedly connected to the frame.

[0010] Furthermore, the connecting structure includes a first connecting plate and a second connecting plate, the second connecting plate being fixedly connected to the first connecting plate, and the first connecting plate being fixedly connected to the end of the cleaning roller.

[0011] Furthermore, a drive cylinder is fixedly installed on the upper part of the second connecting plate, and a connecting block is fixedly installed at the output end of the drive cylinder, with the connecting block located below the second connecting plate.

[0012] Furthermore, the scraper assembly includes a blade holder and a scraper. The scraper is in contact with the surface of the cleaning roller, and the other end of the scraper is fixedly connected to the blade holder. The blade holder is connected to the connecting block. An infrared proximity sensor is provided on one end face of the scraper.

[0013] Furthermore, a T-shaped groove is provided at the end face where the connecting block connects to the tool holder, and a push block is slidably arranged in the T-shaped groove; a hole is provided on one end face of the connecting block, the hole is connected to the T-shaped groove, and a locking bolt is provided in the hole in a threaded engagement manner, the locking bolt passes through the hole and is fixedly connected to the push block.

[0014] Furthermore, the die-cutting device includes a first roller group, a second roller group, and a die-cutting structure. The die-cutting structure is connected to the frame and is located between the first roller group and the second roller group. The first roller group includes a conveying roller A and a pressure roller. The pressure roller is fixedly connected to the frame and is located above the conveying roller A. The conveying roller A is rotatably connected to the frame. The second roller group includes a conveying roller B and a peeling roller. The peeling roller is fixedly connected to the frame and is located above the conveying roller B. The conveying roller B is rotatably connected to the frame.

[0015] Furthermore, the frame is equipped with an electrostatic eliminator in a fixed structure.

[0016] The beneficial effects of this utility model are: by setting a cleaning roller assembly between the die-cutting device and the take-up roll, the scraper in the scraper assembly scrapes off the residual adhesive on the exposed backing paper surface between the two labels after peeling, preventing the backing papers from sticking to each other during winding, ensuring that the performance of the self-adhesive labels is not affected; and preventing dust and other debris from adhering to the backing paper surface, ensuring that the labels are not contaminated.

[0017] By setting T-slots, push blocks, and locking bolts on the connecting block, the scraper assembly can be easily disassembled and assembled, making it convenient to replace different scrapers to remove residual adhesive from the surface of various self-adhesive label backing papers. Attached Figure Description

[0018] Figure 1 This is the front view of this utility model.

[0019] Figure 2 This is a three-dimensional schematic diagram of part of the structure of this utility model.

[0020] Figure 3 This is a diagram showing one possible installation state of the scraper assembly of this utility model.

[0021] Figure 4 This is a diagram showing the completed installation of the scraper assembly of this utility model.

[0022] Figure 5 This is a schematic diagram of the self-adhesive label of this utility model.

[0023] In the picture:

[0024] 1. Frame, 2. Feeding roller, 3. Guide roller, 4. Waste collection roller, 5. Take-up roller, 6. Die-cutting device, 61. First roller assembly, 611. Conveyor roller A, 612. Pressure roller, 62. Second roller assembly, 621. Conveyor roller B, 622. Peeling roller, 63. Die-cutting structure, 7. Cleaning roller assembly, 71. Cleaning roller, 72. Connecting structure, 721. First connecting plate, 722. Second connecting plate, 73. Squeegee assembly, 731. Squeegee holder, 732. Squeegee, 8. Drive cylinder, 9. Connecting block, 10. Infrared proximity sensor, 11. T-slot, 12. Push block, 13. Locking bolt, 14. Hole, 15. Static eliminator, 16. Self-adhesive label, 17. Label, 18. Backing paper. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of this utility model clearer, the utility model will now be described in further detail with reference to the accompanying drawings and the following embodiments, so that the public can better understand the implementation method of this utility model. The specific implementation scheme of this utility model is as follows:

[0026] A self-adhesive label roll die-cutting machine includes a frame 1. A paper feeding roller 2, a guide roller 3, a waste collection roller 4, and a take-up roller 5 are rotatably mounted on the frame 1. A die-cutting device 6 is mounted on the frame 1, positioned above the paper feeding roller 2 and the take-up roller, and below the waste collection roller 4. A cleaning roller assembly 7 is also fixedly mounted on the frame 1, located between the die-cutting device 6 and the take-up roller 5. The cleaning roller assembly 7 includes a cleaning roller 71, a connecting structure 72, and a scraper assembly 73, positioned above the cleaning roller 71. The component 73 is fixedly connected to the connecting structure 72, the connecting structure 72 is fixedly connected to the cleaning roller 71, and the cleaning roller 71 is fixedly connected to the frame 1. By setting the cleaning roller 71 assembly 7 between the die-cutting device 6 and the take-up roll 5, the scraper 732 in the scraper assembly 73 scrapes off the residual adhesive on the surface of the backing paper 18 exposed between the two labels 17 after peeling, so as to avoid the backing papers from sticking to each other during winding and ensure that the performance of the self-adhesive label 16 is not affected. It also prevents dust and other debris from adhering to the surface of the backing paper and ensures that the label is not contaminated.

[0027] It should be noted that the connecting structure 72 includes a first connecting plate 721 and a second connecting plate 722. The second connecting plate 722 is fixedly connected to the first connecting plate 721, and the first connecting plate 721 is fixedly connected to the end of the cleaning roller 71. This structure is mainly used to connect the lower scraper assembly 73. A drive cylinder 8 is fixedly installed on the upper part of the second connecting plate 722, and a connecting block 9 is fixedly installed at the output end of the drive cylinder 8. The connecting block 9 is located below the second connecting plate 722. This structure is mainly used to drive the lifting and lowering of the scrapers 732. When the infrared proximity sensor 10 detects that there is a backing paper under the scraper 732, it sends a signal to the drive cylinder 8 to start, driving the scraper assembly 73 to descend so that the scraper 732 abuts against the backing paper between the two labels. When the infrared proximity sensor 10 detects that there is a label under the scraper 732, the drive cylinder 8 does not start.

[0028] It should be noted that the scraper assembly 73 includes a blade holder 731 and a scraper 732. The scraper 732 is in contact with the surface of the cleaning roller 71, and the other end of the scraper 732 is fixedly connected to the blade holder 731. The blade holder 731 is connected to the connecting block 9. An infrared proximity sensor 10 is provided on one side of the scraper 732. The infrared proximity sensor 10 is connected to the drive cylinder 8 and is used to monitor the distance between the lowest point of the scraper 732 and the bottom paper to distinguish whether the bottom of the scraper 732 is a label or the bottom paper. The signal is transmitted to the drive cylinder 8 in real time.

[0029] Furthermore, a T-slot 11 is provided at the end face where the connecting block 9 connects to the blade holder 731, and a push block 12 is slidably disposed within the T-slot 11; a hole 14 is provided on one end face of the connecting block 9, which communicates with the T-slot 11, and a locking bolt 13 is provided in the hole 14 by thread engagement, the locking bolt 13 passing through the hole 14 and being fixedly connected to the push block 12; when installing the scraper assembly 73, the upper part of the blade holder 731 is aligned with the lower end of the T-slot 11 and inserted, and then the blade holder 731 is moved laterally until it contacts one end face of the T-slot 11, and the installation begins. Tighten the locking bolt 13, which will drive the push block 12 to fix the blade holder 731 in the T-slot 11. When disassembling the scraper assembly 73, unscrew the locking bolt 13, and the push block 12 will move with the locking bolt 13. Then move the blade holder 731 laterally to align with the lower part of the T-slot 11, and pull the blade holder 731 out of the T-slot 11. This structure allows for easy disassembly and assembly of the scraper assembly 73, and facilitates the replacement of different scrapers 732, making it suitable for removing residual adhesive from the surface of the backing paper between two self-adhesive labels.

[0030] It should be noted that the die-cutting device 6 includes a first roller group 61, a second roller group 62, and a die-cutting structure 63. The die-cutting structure 63 is connected to the frame 1 and is located between the first roller group 61 and the second roller group 62. This structure is mainly used to die-cut self-adhesive labels.

[0031] The first roller assembly 61 includes a conveyor roller A611 and a pressure roller 612. The pressure roller 612 is fixedly connected to the frame 1 and is located above the conveyor roller A611. The conveyor roller A611 is rotatably connected to the frame 1. This structure is designed to better bond the film to the backing paper, facilitating subsequent die-cutting.

[0032] The second roller assembly 62 includes a conveying roller B621 and a stripping roller 622. The stripping roller 622 is fixedly connected to the frame 1 and is located above the conveying roller B621. The conveying roller B621 is rotatably connected to the frame 1. This structure is mainly used to remove excess waste.

[0033] It should be noted that the frame 1 is equipped with an electrostatic eliminator 15 in a fixed structure, which is used to eliminate the accumulation of static electricity on the label surface.

[0034] The working principle and process of this utility model are as follows:

[0035] The roll of self-adhesive labels is installed on the feed roller 2. The self-adhesive labels pass sequentially through the guide roller 3, the electrostatic eliminator, the first roller group 61, the die-cutting structure 63, the second roller group 62, the guide roller 3, the cleaning roller 71, and finally reach the take-up roller 5. After exiting the second roller group 62, the used portion of the self-adhesive label goes to the guide roller 3, and the excess waste goes to the waste collection roller 4. When the self-adhesive label passes through the cleaning roller 71, the infrared proximity sensor detects that there is a backing paper under the scraper 732. The drive cylinder 8 drives the connecting block 9, the knife holder 731, and the scraper 732 to descend. The scraper 732 descends until it just touches the backing paper against the cleaning roller 71, thereby scraping off the excess adhesive on the backing paper between the two labels. The cleaned self-adhesive labels then go to the take-up roller 5.

[0036] In the description of this utility model, it should be understood that the terms "center," "upper," "lower," "left," "right," "front," "rear," "lower left," "upper right," "outer," "clockwise," and "counterclockwise," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the machine or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the scope of protection of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Although this utility model has been described according to a limited number of embodiments, those skilled in the art should understand from the above description that other embodiments can be conceived within the scope of this utility model described herein.

Claims

1. A self-adhesive label roll die-cutting machine, characterized in that, include: The frame (1) is rotatably equipped with a paper feeding roller (2), a guide roller (3), a waste collection roller (4) and a paper take-up roller (5); Die-cutting device (6) is connected to frame (1). Die-cutting device (6) is located above paper feed roller (2) and paper take-up roller, and below waste collection roller (4). The cleaning roller assembly (7) is fixedly connected to the frame (1). The cleaning roller assembly (7) is located between the die-cutting device (6) and the take-up roll (5). The cleaning roller assembly (7) includes a cleaning roller (71), a connecting structure (72), and a scraper assembly (73). The scraper assembly (73) is located above the cleaning roller (71). The scraper assembly (73) is fixedly connected to the connecting structure (72). The connecting structure (72) is fixedly connected to the cleaning roller (71). The cleaning roller (71) is fixedly connected to the frame (1).

2. The self-adhesive label roll die-cutting machine according to claim 1, characterized in that: The connecting structure (72) includes a first connecting plate (721) and a second connecting plate (722), the second connecting plate (722) being fixedly connected to the first connecting plate (721), and the first connecting plate (721) being fixedly connected to the end of the cleaning roller (71).

3. The self-adhesive label roll die-cutting machine according to claim 2, characterized in that: A drive cylinder (8) is fixedly installed on the upper part of the second connecting plate (722), and a connecting block (9) is fixedly installed at the output end of the drive cylinder (8). The connecting block (9) is located below the second connecting plate (722).

4. The self-adhesive label roll die-cutting machine according to claim 1, characterized in that: The scraper assembly (73) includes a blade holder (731) and a scraper (732). The scraper (732) is in contact with the surface of the cleaning roller (71). The other end of the scraper (732) is fixedly connected to the blade holder (731). The blade holder (731) is connected to the connecting block (9). An infrared proximity sensor (10) is provided on one end face of the scraper (732).

5. A self-adhesive label roll die-cutting machine according to claim 2, characterized in that: A T-groove (11) is provided at the end face where the connecting block (9) connects with the tool holder (731), and a push block (12) is slidably arranged in the T-groove (11); A hole (14) is provided on one end face of the connecting block (9). The hole (14) is connected to the T-shaped groove (11). A locking bolt (13) is provided in the hole (14) in a threaded engagement manner. The locking bolt (13) passes through the hole (14) and is fixedly connected to the push block (12).

6. The self-adhesive label roll die-cutting machine according to claim 1, characterized in that: The die-cutting device (6) includes a first roller group (61), a second roller group (62) and a die-cutting structure (63). The die-cutting structure (63) is connected to the frame (1) and is located between the first roller group (61) and the second roller group (62). The first roller assembly (61) includes a conveying roller A (611) and a pressure roller (612). The pressure roller (612) is fixedly connected to the frame (1). The pressure roller (612) is located above the conveying roller A (611). The conveying roller A (611) is rotatably connected to the frame (1). The second roller assembly (62) includes a conveying roller B (621) and a stripping roller (622). The stripping roller (622) is fixedly connected to the frame (1). The stripping roller (622) is located above the conveying roller B (621). The conveying roller B (621) is rotatably connected to the frame (1).

7. The self-adhesive label roll die-cutting machine according to claim 1, characterized in that: The frame (1) is equipped with an electrostatic eliminator (15) in a fixed structure.

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