Paper board film laminating machine

The threaded rod system driven by electric push rods and servo motors enables automatic height adjustment and uniformity of lamination pressure in paperboard laminating machines, solving the problem of uneven lamination of boards of different thicknesses and improving lamination quality and equipment adaptability.

CN224028399UActive Publication Date: 2026-03-24WUHAN JONO TECH IND CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-09
Publication Date
2026-03-24

AI Technical Summary

Technical Problem

Existing paperboard laminating machines cannot flexibly adjust to the thickness of the board, resulting in uneven lamination effects, bubbles, wrinkles, or misalignment, which affect the product's appearance and protective function.

Method used

The lifting and lowering of the placement plate is controlled by an electric push rod, combined with a servo motor driving the threaded rod and threaded block to achieve precise adjustment of the plate height. Rubber pressing and rollers ensure uniform coating pressure and avoid the generation of bubbles or wrinkles.

Benefits of technology

It enables automatic adjustment of the coating height based on the thickness of the board material, ensuring uniform coating quality, improving equipment versatility and coating effect, and avoiding uneven coating.

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Abstract

The utility model relates to a paper board film laminating machine, which belongs to the technical field of board film laminating, and comprises a base, four corners of the top of the base are respectively and fixedly connected with supporting legs, a film laminating assembly used for laminating is arranged among the tops of the four supporting legs, and the film laminating assembly comprises a top frame fixedly connected among the tops of the four supporting legs. A motor is fixedly connected to the front face of the top frame, a threaded rod is fixedly connected to an output shaft of the motor, a threaded block is in threaded connection to the outer side of the threaded rod, a connecting block is fixedly connected to the bottom of the threaded block, and a mounting frame is fixedly connected to the bottom of the connecting block. And a roller is rotationally connected between the inner left side wall and the inner right side wall of the mounting frame. According to the paper board film laminating machine, lifting of the placing plate is controlled through the electric push rod, the height can be accurately adjusted according to the thickness of a board, it is ensured that the contact pressure between the surface of the board and the film laminating assembly is uniform, the paper board film laminating machine adapts to boards of various thicknesses, and the universality and applicability of equipment are improved.
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Description

Technical Field

[0001] This utility model relates to the field of paperboard coating technology, specifically a paperboard coating machine. Background Technology

[0002] Paperboard laminating machines, widely used in printing, packaging, advertising, and other fields, play a crucial role. Their core function is to precisely coat the surface of paperboard with a protective film. This film not only significantly improves the paperboard's abrasion resistance, effectively resisting daily wear and tear, but also imparts excellent waterproof properties, ensuring that it maintains its original quality and appearance even in humid environments.

[0003] Traditional laminating machines often use a fixed-height operating platform, which limits their ability to handle paperboard of varying thicknesses. Because they cannot be flexibly adjusted according to the actual thickness of the board, uneven lamination is prone to occur, manifesting as air bubbles, wrinkles, or misalignment of the lamination layer. These problems not only affect the overall aesthetics of the product but also weaken its protective function, reducing its market competitiveness. Therefore, this paperboard laminating machine is proposed to address these issues. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a paperboard laminating machine that is adaptable to boards of different thicknesses, thereby improving laminating quality. It solves the problems of existing laminating devices having a fixed height, making it difficult to adapt to boards of different thicknesses, and thus reducing laminating quality.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A paperboard laminating machine includes a base, with four legs fixedly connected to the top of the base, and a laminating assembly for laminating is provided between the tops of the four legs.

[0007] The coating assembly includes a top frame fixedly connected between the tops of four support legs. A motor is fixedly connected to the front of the top frame. A threaded rod is fixedly connected to the output shaft of the motor. A threaded block is threadedly connected to the outer side of the threaded rod. A connecting block is fixedly connected to the bottom of the threaded block. A mounting bracket is fixedly connected to the bottom of the connecting block. A roller is rotatably connected between the inner left side wall and the inner right side wall of the mounting bracket. A rubber contact layer is fixedly connected to the outer side of the roller.

[0008] Furthermore, electric push rods are fixedly connected to the four corners of the inner bottom wall of the base, and a placement plate is fixedly connected to one end of each of the four electric push rods.

[0009] Further, the top of the inner side of the base is provided with a lifting opening matched with the placing plate, and the placing plate is located at the inner side of the lifting opening.

[0010] Further, the motor is a servo motor, and a motor frame is fixedly connected to the outer side of the motor and fixedly connected to the front face of the top frame.

[0011] Further, the bottom of the top frame is fixedly connected with two connecting rods, the two connecting rods are respectively located at the left side and the right side of the mounting frame, and the bottom end of the connecting rod is fixedly connected with a positioning plate, and the bottom of the positioning plate is fixedly connected with a rubber pressure layer.

[0012] Further, the length and width of the rubber pressure layer are equal to the length and width of the positioning plate respectively, and the thickness of the rubber pressure layer is equal to the thickness of the positioning plate.

[0013] Further, the left and right sides of the threaded block are fixedly connected with guide pieces, the inner side of the guide piece is slidingly connected with a guide rod, and one end of the front face of the guide rod is fixedly connected with the inner front side wall of the top frame, and the other end of the back face of the guide rod is fixedly connected with the inner rear side wall of the top frame.

[0014] Further, the bottom of the inner side of the top frame is provided with a sliding opening matched with the connecting block, and the connecting block is slidingly connected to the inner side of the sliding opening.

[0015] Compared with the prior art, the paper board laminating machine has the following beneficial effects:

[0016] The paper board laminating machine can accurately adjust the height according to the thickness of the board, ensure the uniform contact pressure between the board surface and the laminating assembly, adapt to boards of various thicknesses, improve the versatility and applicability of the equipment, and the motor is a servo motor, which can accurately control the rotation angle and speed of the threaded rod, thereby realizing accurate adjustment of the position of the threaded block. By adjusting the position of the threaded block, the laminating pressure between the roller and the board surface can be accurately controlled, the laminating material can be tightly attached to the board, and the generation of bubbles or wrinkles can be avoided. BRIEF DESCRIPTION OF DRAWINGS

[0017] Fig. 1 It is a sectional view of the structure of the utility model;

[0018] Fig. 2 It is a front view of the structure of the utility model;

[0019] Fig. 3 It is a perspective view of the base, the foot and the top frame in the structure of the utility model.

[0020] In the figure: 1, base; 2, support; 3, top frame; 4, motor; 5, threaded rod; 6, threaded block; 7, connecting block; 8, mounting frame; 9, roller; 10, rubber contact layer; 11, electric push rod; 12, placing plate; 13, connecting rod; 14, positioning plate; 15, rubber pressure layer; 16, guide fin; 17, guide rod. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0022] Please refer to Figs. 1-3 The paper board laminating machine in the embodiment comprises a base 1, four corners of the top of the base 1 are fixedly connected with support legs 2, and a laminating assembly for laminating is arranged between the tops of the four support legs 2.

[0023] Please refer to Fig. 1 In the embodiment, the laminating assembly comprises a top frame 3 fixedly connected between the tops of the four support legs 2, the front surface of the top frame 3 is fixedly connected with a motor 4, the output shaft of the motor 4 is fixedly connected with a threaded rod 5, the outer side of the threaded rod 5 is threadedly connected with a threaded block 6, the bottom of the threaded block 6 is fixedly connected with a connecting block 7, the bottom of the connecting block 7 is fixedly connected with a mounting frame 8, the inner left side wall and the inner right side wall of the mounting frame 8 are rotatably connected with a roller 9, and the outer side of the roller 9 is fixedly connected with a rubber contact layer 10.

[0024] Specifically, four electric push rods 11 are fixedly connected with the four corners of the inner bottom wall of the base 1, and the one ends of the movable rods of the four electric push rods 11 are fixedly connected with a placing plate 12.

[0025] It should be noted that the electric push rods 11 drive the placing plate 12 to vertically move in the lifting opening by controlling the extension and retraction of the movable rods, so as to adjust the height of the board and adapt to boards of different thicknesses.

[0026] Specifically, a lifting opening matched with the placing plate 12 is formed in the top of the inner side of the base 1, and the placing plate 12 is located on the inner side of the lifting opening.

[0027] It should be noted that the lifting opening provides a moving space for the lifting movement of the placing plate 12.

[0028] Specifically, the motor 4 is a servo motor, and a motor bracket is fixedly connected with the outer side of the motor 4 and fixedly connected with the front surface of the top frame 3.

[0029] It should be noted that the motor 4 adopts a servo motor, which has the characteristics of high precision and high response, and can accurately control the rotation angle and speed of the threaded rod 5, thereby realizing accurate adjustment of the position of the threaded block 6.

[0030] Specifically, the bottom of the top frame 3 is fixedly connected with two connecting rods 13, which are located on the left and right sides of the mounting frame 8 respectively, and the bottom end of the connecting rod 13 is fixedly connected with a positioning plate 14, and the bottom of the positioning plate 14 is fixedly connected with a rubber pressing layer 15.

[0031] It should be noted that the rubber pressing layer 15 is made of high-elasticity rubber material, which has good wear resistance and pressure resistance, and can exert uniform pressure on the surface of the plate during the film covering process, thereby positioning the plate and the film.

[0032] Specifically, the length and width of the rubber pressing layer 15 are equal to the length and width of the positioning plate 14 respectively, and the thickness of the rubber pressing layer 15 is equal to the thickness of the positioning plate 14.

[0033] Specifically, the left and right sides of the threaded block 6 are fixedly connected with guide pieces 16, the inner side of the guide piece 16 is slidingly connected with a guide rod 17, and one end of the front surface of the guide rod 17 is fixedly connected with the inner front side wall of the top frame 3, and the other end of the back surface of the guide rod 17 is fixedly connected with the inner back side wall of the top frame 3.

[0034] It should be noted that the sliding connection design of the guide piece 16 and the guide rod 17 ensures the stability and linearity of the threaded block 6 during movement, avoiding the offset or jamming of the threaded block 6 due to uneven force.

[0035] Specifically, the bottom of the inner side of the top frame 3 is provided with a sliding opening matched with the connecting block 7, and the connecting block 7 is slidingly connected to the inner side of the sliding opening.

[0036] It should be noted that the inner wall of the sliding opening is polished to reduce friction resistance and prolong the service life of the equipment.

[0037] In addition, the rubber contact layer 10 is made of high-elasticity rubber material, which can exert uniform pressure on the film covering material during the film covering process, ensuring the film covering effect.

[0038] The working principle of the above embodiment is as follows:

[0039] Place the plate to be covered with film on the placing plate 12, then lay the film covering material on the surface of the plate, start the electric push rod 11, adjust the height of the placing plate 12 according to the thickness of the plate, when the plate reaches the appropriate height position, the plate and the film covering material will be in contact with the rubber pressing layer 15, and the rubber pressing layer 15 cooperates with the positioning plate 14 to position the plate and the film covering material, preventing deviation during the film covering process;

[0040] The motor 4 is started, the motor 4 drives the threaded rod 5 to rotate, the threaded rod 5 drives the threaded block 6 to move horizontally along the guide rod 17 through threaded connection, the threaded block 6 drives the mounting frame 8 and the roller 9 to move synchronously through the connecting block 7, in the moving process of the roller 9, the rubber contact layer 10 applies uniform pressure to the film material, so that the film material is tightly attached to the surface of the plate, when the roller 9 moves to the other side of the plate, the motor 4 stops running, and the film coating process is completed.

[0041] The mounting mode, connection mode or setting mode disclosed in the embodiment are all common mechanical connection modes, and can be implemented as long as the beneficial effects can be achieved. In addition, the electrical components appearing in the embodiment are all electrically connected with the master controller and the power supply, the master controller can be a conventional known device such as a computer which plays a control role, and the control of the electrical components can be realized by simple programming by those skilled in the art, and the existing disclosed power connection technology also belongs to the common knowledge in the art, so the specific structure composition and working principle thereof will not be described in detail.

[0042] It should be noted that, in this paper, the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0043] It should be noted that, in this paper, the relationship terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between the entities or operations. Moreover, the terms "include", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or device. Without more limitations, the element defined by the statement "including a" does not exclude the presence of another identical element in the process, method, article or device including the element.

[0044] Although the embodiments of the present application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations of the embodiments can be made without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A paperboard laminating machine, comprising a base (1), characterized in that: The base (1) has four corners fixedly connected to support legs (2), and a film covering assembly for film covering is provided between the tops of the four support legs (2). The coating assembly includes a top frame (3) fixedly connected between the tops of four legs (2). A motor (4) is fixedly connected to the front of the top frame (3). A threaded rod (5) is fixedly connected to the output shaft of the motor (4). A threaded block (6) is threadedly connected to the outer side of the threaded rod (5). A connecting block (7) is fixedly connected to the bottom of the threaded block (6). A mounting bracket (8) is fixedly connected to the bottom of the connecting block (7). A roller (9) is rotatably connected between the inner left side wall and the inner right side wall of the mounting bracket (8). A rubber contact layer (10) is fixedly connected to the outer side of the roller (9).

2. The paperboard laminating machine according to claim 1, characterized in that: Electric push rods (11) are fixedly connected to the four corners of the inner bottom wall of the base (1), and a placement plate (12) is fixedly connected between one end of the movable rod of the four electric push rods (11).

3. A paperboard laminating machine according to claim 2, characterized in that: The top of the inner side of the base (1) is provided with a lifting opening that is compatible with the placement plate (12), and the placement plate (12) is located inside the lifting opening.

4. A paperboard laminating machine according to claim 1, characterized in that: The motor (4) is a servo motor, and a motor frame is fixedly connected to the outside of the motor (4), and the motor frame is fixedly connected to the front of the top frame (3).

5. A paperboard laminating machine according to claim 1, characterized in that: The bottom of the top frame (3) is fixedly connected to two connecting rods (13), which are located on the left and right sides of the mounting frame (8), respectively. The bottom end of the connecting rod (13) is fixedly connected to a positioning plate (14), and the bottom of the positioning plate (14) is fixedly connected to a rubber layer (15).

6. A paperboard laminating machine according to claim 5, characterized in that: The length and width of the rubber layer (15) are equal to the length and width of the positioning plate (14), and the thickness of the rubber layer (15) is equal to the thickness of the positioning plate (14).

7. A paperboard laminating machine according to claim 1, characterized in that: Guide plates (16) are fixedly connected to both the left and right sides of the threaded block (6). A guide rod (17) is slidably connected to the inner side of the guide plate (16). One end of the front of the guide rod (17) is fixedly connected to the inner front side wall of the top frame (3), and one end of the back of the guide rod (17) is fixedly connected to the inner rear side wall of the top frame (3).

8. A paperboard laminating machine according to claim 1, characterized in that: The bottom of the inner side of the top frame (3) is provided with a sliding opening that is compatible with the connecting block (7), and the connecting block (7) is slidably connected to the inner side of the sliding opening.