A paperboard film coating auxiliary device

Abstract

This utility model provides a cardboard laminating auxiliary device, including a laminating frame, a conveyor belt fixedly mounted on the laminating frame, a cardboard body mounted on the conveyor belt, a fixed plate fixedly connected between two bars of the laminating frame above the conveyor belt, and a film-cutting edge assembly cooperating with the cardboard body disposed below the fixed plate. The film-cutting edge assembly includes L-shaped adjusting frames slidably fitted on both sides of the bottom of the fixed plate and located on both sides of the cardboard body. A film roll and a laminating roller are respectively disposed on the upper and lower sides of the two bars of the laminating frame. By installing the film-cutting edge knife between two second fixed blocks, the film-cutting edge knife cuts off the excess film on both sides of the cardboard body. The inclined setting of the laminating roller further improves the film lamination effect after cutting off the excess film on both sides of the cardboard, reducing the situation where the film peels off from the cardboard surface due to curling edges. This not only improves the appearance quality of the product, but also enhances its practicality and durability.

Description

Technical Field

[0001] This utility model relates to the technical field of cardboard processing equipment, specifically to a cardboard laminating auxiliary device. Background Technology

[0002] Cardboard is a thick sheet of paper made from various pulps, with fibers interwoven. Some cardboard requires lamination to enhance its waterproof and other functions. Existing lamination equipment only performs lamination and lacks cutting capabilities. Due to the diverse sizes and specifications of the film and cardboard, and the difficulty in achieving precise matching, the film and cardboard are prone to misalignment during the lamination process, making it impossible to ensure perfect edge alignment. Without cutting off the excess film on both sides, during subsequent processing, handling, or use, the excess film is easily affected by external friction, changes in environmental temperature and humidity, and other factors, leading to edge curling and peeling off the cardboard surface. This not only affects the product's appearance but also reduces its practicality and durability. Utility Model Content

[0003] To address the shortcomings of existing technologies, the purpose of this utility model is to provide a cardboard laminating auxiliary device to solve the problems mentioned in the background art. This utility model has a novel structure. By installing a film-cutting edge knife between two second fixed blocks, the film-cutting edge knife cuts off the excess film on both sides of the cardboard body as the cardboard body moves. The inclined setting of the laminating roller further improves the film lamination effect after cutting off the excess film on both sides of the cardboard, reducing the situation where the film peels off from the cardboard surface due to curling edges. This not only improves the appearance quality of the product, but also enhances its practicality and durability.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a cardboard laminating auxiliary device, comprising a laminating frame, a conveyor belt fixedly mounted on the laminating frame, a cardboard body disposed on the conveyor belt, a fixed plate fixedly connected between the two bars of the laminating frame and located above the conveyor belt, a film-cutting edge assembly cooperating with the cardboard body disposed below the fixed plate, the film-cutting edge assembly comprising an L-shaped adjusting frame slidably fitted on both sides of the bottom of the fixed plate and located on both sides of the cardboard body, and a film roll and a laminating roller respectively disposed on the upper and lower sides of the two bars of the laminating frame.

[0005] Furthermore, each of the two bars of the film-coating frame is fixedly connected to an upright plate on its upper side, the film roll is rotatably fitted between the two upright plates, and each of the two bars of the film-coating frame is slidably fitted with a connecting plate on its lower side.

[0006] Furthermore, a first spring is fixedly connected between each of the two connecting plates and the two bars of the laminating frame, and the laminating roller is rotatably engaged between the two connecting plates and located above the cardboard body.

[0007] Furthermore, the bottom of the fixed plate is provided with a sliding groove, the top of the longitudinal sides of the two L-shaped adjustment brackets are slidably engaged on both sides of the sliding groove, the inner wall of the sliding groove is provided with a through hole extending upwards, and the inner wall of the through hole is rotatably engaged with an adjustment rod.

[0008] Furthermore, a bidirectional screw is rotatably fitted between the inner walls of the two sides of the slide groove, and threaded grooves are opened through the top of the longitudinal sides of the two L-shaped adjustment brackets. The threaded grooves on the two L-shaped adjustment brackets are respectively threaded onto the two sides of the bidirectional screw. A worm wheel is fixedly connected to the circumference of the middle part of the bidirectional screw, and a worm that meshes with the worm wheel is fixedly connected to one end of the adjustment rod.

[0009] Furthermore, a limiting frame and a cutting frame are respectively provided on the side of the two L-shaped adjustment frames facing the side of the cardboard body. The limiting frame and the cutting frame are located on the front and rear sides of the laminating roller, respectively. A through groove is opened through one side of the two L-shaped adjustment frames, and a slide bar that slides in cooperation with the through groove is fixedly connected to one side of the limiting frame.

[0010] Furthermore, a second spring is fixedly connected between one side of the limiting frame and one side of the lateral side of the L-shaped adjusting frame, and a limiting roller that fits against the side of the cardboard body is rotatably fitted between the upper and lower side plates of the limiting frame, and a fixing rod is fixedly connected between the cutting frame and one side of the lateral side of the L-shaped adjusting frame.

[0011] Furthermore, two first fixing blocks and second fixing blocks, arranged vertically, are fixedly connected to the side of the cutting frame facing the cardboard body. A bonding roller, inclined towards the side of the cardboard body, is rotatably fitted between the two first fixing blocks. A film-cutting edge knife, which cooperates with the side of the cardboard body, is detachably installed between the two second fixing blocks. The bonding roller is located behind the film-cutting edge knife.

[0012] The beneficial effects of this utility model are:

[0013] 1. This cardboard laminating auxiliary device installs a film-cutting edge knife between two second fixed blocks. As the cardboard body moves, the film-cutting edge knife cuts off the excess film on both sides of the cardboard body. The inclined setting of the laminating roller further improves the film lamination effect after cutting off the excess film on both sides of the cardboard, reducing the situation where the film peels off from the cardboard surface due to curling edges. This not only improves the appearance quality of the product, but also enhances its practicality and durability.

[0014] 2. This cardboard laminating auxiliary device, through an adjustment structure consisting of an adjusting rod, worm gear, worm wheel, and bidirectional screw, can flexibly adjust the position of the film cutting edge assembly, enabling it to adapt to cardboard and film of different sizes and specifications. Attached Figure Description

[0015] Figure 1This is a schematic diagram of the overall structure of a cardboard laminating auxiliary device according to the present invention;

[0016] Figure 2 This is a schematic diagram of the connection between the film cutting edge assembly and the film covering frame of this utility model;

[0017] Figure 3 This is a schematic diagram of the connection between the fixing plate and the film cutting edge assembly in this utility model;

[0018] Figure 4 This utility model Figure 3 -Enlarged structural diagram at point A;

[0019] Figure 5 This utility model Figure 3 - Enlarged structural diagram at point B.

[0020] In the diagram: 1. Laminating frame; 2. Conveyor belt; 3. Cardboard body; 4. Fixing plate; 5. Film cutting edge assembly; 501. L-shaped adjusting frame; 502. Limiting frame; 503. Cutting frame; 504. Through groove; 505. Sliding strip; 506. Limiting roller; 507. Second spring; 508. Fixing rod; 509. First fixing block; 510. Laminating roller; 511. Second fixing block; 512. Film cutting edge knife; 6. Vertical plate; 7. Film roll; 8. Connecting plate; 9. First spring; 10. Laminating roller; 11. Sliding groove; 12. Through hole; 13. Adjusting rod; 14. Bidirectional screw; 15. Threaded groove; 16. Worm gear; 17. Worm. Detailed Implementation

[0021] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0022] Please refer to Figures 1 to 5 This utility model provides a technical solution: a cardboard laminating auxiliary device, including a laminating frame 1, a conveyor belt 2 fixedly installed on the laminating frame 1, a cardboard body 3 disposed on the conveyor belt 2, a fixing plate 4 fixedly connected between the two bars of the laminating frame 1 and located above the conveyor belt 2, a film cutting edge assembly 5 cooperating with the cardboard body 3 disposed below the fixing plate 4, the film cutting edge assembly 5 including an L-shaped adjusting frame 501 slidably engaged on both sides of the bottom of the fixing plate 4 and located on both sides of the cardboard body 3, and a film roll 7 and a laminating roller 10 respectively disposed on the upper and lower sides of the two bars of the laminating frame 1.

[0023] In this embodiment, upright plates 6 are fixedly connected to the upper sides of the two bars of the laminating frame 1. The film roll 7 is rotatably engaged between the two upright plates 6. Connecting plates 8 are slidably engaged on the lower sides of the two bars of the laminating frame 1. A first spring 9 is fixedly connected between the two connecting plates 8 and the two bars of the laminating frame 1. The laminating roller 10 is rotatably engaged between the two connecting plates 8 and located above the cardboard body 3. A groove 11 is provided at the bottom of the fixed plate 4. The tops of the longitudinal sides of the two L-shaped adjusting frames 501 are slidably engaged on both sides of the groove 11. A through hole 12 is provided through the inner wall of the slide groove 11, and an adjusting rod 13 is rotatably fitted on the inner wall of the through hole 12. A bidirectional screw 14 is rotatably fitted between the inner walls of the two sides of the slide groove 11. Threaded grooves 15 are provided through the top of the longitudinal sides of the two L-shaped adjusting brackets 501. The threaded grooves 15 on the two L-shaped adjusting brackets 501 are respectively threaded onto the two sides of the bidirectional screw 14. A worm gear 16 is fixedly connected to the circumference of the middle part of the bidirectional screw 14. A worm 17 that meshes with the worm gear 16 is fixedly connected to one end of the adjusting rod 13.

[0024] Specifically, when it is necessary to adjust the position of the film-cutting edge assembly 5 to adapt to different sizes of cardboard bodies 3, the adjusting rod 13 is rotated. The worm gear 17 at one end of the adjusting rod 13 meshes with the worm wheel 16, driving the worm wheel 16 to rotate, which in turn causes the bidirectional screw 14 to rotate. Since the threaded grooves 15 on the two L-shaped adjusting brackets 501 are respectively threaded onto both sides of the bidirectional screw 14, the rotation of the bidirectional screw 14 causes the two L-shaped adjusting brackets 501 to slide towards or away from each other in the slide groove 11, thereby adjusting the overall position of the film-cutting edge assembly 5 to adapt to cardboard bodies 3 of different widths.

[0025] In this embodiment, a limiting frame 502 and a cutting frame 503 are respectively provided on the side of the two L-shaped adjusting frames 501 facing the side of the cardboard body 3. The limiting frame 502 and the cutting frame 503 are located on the front and rear sides of the laminating roller 10, respectively. A through groove 504 is provided on one side of the lateral edge of each of the two L-shaped adjusting frames 501. A slide bar 505 that slides with the through groove 504 is fixedly connected to one side of the limiting frame 502. A second spring 507 is fixedly connected between one side of the limiting frame 502 and one side of the lateral edge of the L-shaped adjusting frame 501. The upper and lower side plates of the limiting frame 502 are rotatably engaged with the paperboard body 3. A limiting roller 506 is attached to the side of the board body 3. A fixing rod 508 is fixedly connected between the cutting frame 503 and one side of the horizontal side of the L-shaped adjusting frame 501. Two first fixing blocks 509 and second fixing blocks 511 are fixedly connected to the side of the cutting frame 503 facing the board body 3. A bonding roller 510 is rotatably engaged between the two first fixing blocks 509 and is inclined towards the side of the board body 3. A film cutting edge knife 512 that cooperates with the side of the board body 3 is detachably installed between the two second fixing blocks 511. The bonding roller 510 is located behind the film cutting edge knife 512.

[0026] Specifically, during the lamination process, the limiting roller 506 on one side of the limiting frame 502 is in contact with the side of the cardboard body 3 to limit the film and prevent it from shifting from the cardboard during lamination, ensuring that the film and the edge of the cardboard are aligned. At the same time, the limiting frame 502 slides with the through groove 504 on the lateral side of the L-shaped adjusting frame 501 through the slide bar 505, and a second spring 507 is connected between the two, which can adaptively adjust according to slight differences in the size of the cardboard to ensure the limiting effect. After the film is initially limited by the limiting roller 506, the lamination roller 510 rotates between the two first fixing blocks 509 and is inclined towards the side of the cardboard body 3, which can further tighten the film to the side of the cardboard body 3 and eliminate the gap between the film and the cardboard. The film cutting blade 512 is installed between the two second fixing blocks 511. As the cardboard body 3 moves, the film cutting blade 512 cuts the excess film on both sides of the cardboard body 3, so that the film size matches the cardboard precisely.

[0027] When using the device, the cardboard body 3 is placed on the conveyor belt 2 and begins to move as the conveyor belt 2 rotates. At the same time, the film roll 7 rotates and engages with the upright plates 6, and the film gradually unfolds from the film roll 7, extending towards the laminating roller 10. Due to the first spring 9 set between the connecting plate 8 and the two levers of the laminating frame 1, the laminating roller 10 can adaptively and tightly fit above the cardboard body 3, pressing the film tightly onto the surface of the cardboard body 3, completing the initial laminating operation. When it is necessary to adapt to cardboard bodies 3 of different sizes, the adjusting rod 13 is rotated, and the worm gear 17 at one end of the adjusting rod 13 meshes with the worm wheel 16, driving the worm wheel 16 to rotate, which in turn drives the bidirectional screw 14 to rotate, causing the two L-shaped adjusting frames 501 to slide towards or away from each other in the slide groove 11, adjusting the overall position of the film cutting edge assembly 5. During the laminating process, the limiting roller 506 on one side of the limiting frame 502 and the limiting roller 506 engage with the limiting roller 10 to adjust the overall position of the cutting edge assembly 5. The sides of the cardboard body 3 are adhered to each other, which serves as a limit to prevent the film from shifting from the cardboard during the lamination process. The limiting frame 502 slides with the through groove 504 on the lateral side of the L-shaped adjusting frame 501 through the slide bar 505, and the second spring 507 connected between the two can adaptively adjust according to slight differences in the size of the cardboard. After being initially limited by the limiting roller 506, the film continues to move forward. The lamination roller 510 rotates between the two first fixing blocks 509 and is inclined towards the side of the cardboard body 3 to further adhere the film tightly to the side of the cardboard body 3, eliminating the gap between the film and the cardboard. Finally, the film cutting blade 512 installed between the two second fixing blocks 511 cuts off the excess film on both sides of the cardboard body 3 as the cardboard body 3 moves, so that the film size is precisely matched with the cardboard, completing the entire lamination and cutting work.

[0028] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It is obvious to those skilled in the art that this utility model is not limited to the details of the above exemplary embodiments, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model.

[0029] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A cardboard laminating auxiliary device, comprising a laminating frame (1), characterized in that: A conveyor belt (2) is fixedly installed on the laminating frame (1), and a cardboard body (3) is provided on the conveyor belt (2). A fixing plate (4) located above the conveyor belt (2) is fixedly connected between the two bars of the laminating frame (1). A film cutting edge assembly (5) that cooperates with the cardboard body (3) is provided below the fixing plate (4). The film cutting edge assembly (5) includes an L-shaped adjusting frame (501) that slides on both sides of the bottom of the fixing plate (4) and is located on both sides of the cardboard body (3). A film roll (7) and a laminating roller (10) are respectively provided on the upper and lower sides of the two bars of the laminating frame (1).

2. The cardboard laminating auxiliary device according to claim 1, characterized in that: The upper sides of the two bars of the film covering frame (1) are fixedly connected with upright plates (6), the film roll (7) is rotatably fitted between the two upright plates (6), and the lower sides of the two bars of the film covering frame (1) are slidably fitted with connecting plates (8).

3. The cardboard laminating auxiliary device according to claim 2, characterized in that: A first spring (9) is fixedly connected between the two connecting plates (8) and the two bars of the laminating frame (1). The laminating roller (10) is rotatably engaged between the two connecting plates (8) and located above the cardboard body (3).

4. The cardboard laminating auxiliary device according to claim 3, characterized in that: The bottom of the fixed plate (4) is provided with a sliding groove (11), and the top of the longitudinal side of the two L-shaped adjustment brackets (501) are slidably engaged on both sides of the sliding groove (11). The inner wall of the sliding groove (11) is provided with a through hole (12) extending upward, and the inner wall of the through hole (12) is rotatably engaged with an adjustment rod (13).

5. The cardboard laminating auxiliary device according to claim 4, characterized in that: A bidirectional screw (14) is rotatably fitted between the inner walls of the two sides of the slide groove (11). The top of the longitudinal side of the two L-shaped adjustment brackets (501) is provided with threaded grooves (15). The threaded grooves (15) on the two L-shaped adjustment brackets (501) are respectively threaded onto the two sides of the bidirectional screw (14). A worm gear (16) is fixedly connected to the circumference of the middle part of the bidirectional screw (14). One end of the adjustment rod (13) is fixedly connected to a worm (17) that meshes with the worm gear (16).

6. The cardboard laminating auxiliary device according to claim 5, characterized in that: On the side of the two L-shaped adjustment frames (501) facing the side of the cardboard body (3), a limiting frame (502) and a cutting frame (503) are respectively provided. The limiting frame (502) and the cutting frame (503) are located on the front and rear sides of the laminating roller (10). A through groove (504) is provided on one side of the transverse side of the two L-shaped adjustment frames (501). A slide bar (505) that slides with the through groove (504) is fixedly connected to one side of the limiting frame (502).

7. The cardboard laminating auxiliary device according to claim 6, characterized in that: A second spring (507) is fixedly connected between one side of the limiting frame (502) and one side of the lateral side of the L-shaped adjusting frame (501). A limiting roller (506) that fits against the side of the cardboard body (3) is rotatably fitted between the upper and lower side plates of the limiting frame (502). A fixing rod (508) is fixedly connected between the cutting frame (503) and one side of the lateral side of the L-shaped adjusting frame (501).

8. The cardboard laminating auxiliary device according to claim 7, characterized in that: The cutting frame (503) is fixedly connected to two first fixing blocks (509) and second fixing blocks (511) arranged vertically on one side facing the cardboard body (3). The two first fixing blocks (509) are rotatably fitted with a bonding roller (510) that is inclined toward the side of the cardboard body (3). The two second fixing blocks (511) are detachably installed with a film cutting edge knife (512) that cooperates with the side of the cardboard body (3). The bonding roller (510) is located behind the film cutting edge knife (512).

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