A paper cutting mechanism for an automatic pre-coated film laminating machine

Abstract

This utility model relates to the field of pre-coated film laminating machines, specifically a dedicated paper cutting mechanism for automatic pre-coated film laminating machines. It includes a machine base with a paper feeding structure and a cutting groove. A paper cutting assembly, also mounted on the machine base, cuts the paper on the feeding structure at the cutting groove. A paper pressing assembly includes two paper pressing frames on either side of the cutting assembly. Each paper pressing frame has a paper pressing wheel rotatably connected to its bottom. A second motor drives a bidirectional screw to rotate, causing two moving seats on the bidirectional screw to move in opposite directions. The moving seats are fixedly connected to a linkage seat, which in turn slides with a limiting block at the top of the paper pressing frame via a limiting groove, allowing for synchronous adjustment of the distance between the two paper pressing frames. This design allows for quick adaptation to laminated paper of different widths, significantly improving the versatility of the dedicated paper cutting mechanism for automatic pre-coated film laminating machines and reducing equipment debugging time and operational complexity caused by paper specification changes.

Description

Technical Field

[0001] This utility model relates to the field of pre-coated film laminating machine technology, specifically to a paper cutting mechanism for an automatic pre-coated film laminating machine. Background Technology

[0002] The pre-coated film laminating machine is an environmentally friendly laminating equipment that does not require an adhesive heating and drying system. It is mainly used for surface processing of printed materials and is suitable for the protection of publications such as textbooks and audio-visual products. Its core process achieves the bonding of the adhesive layer to the printed material through pre-coated film hot pressing technology. The structure consists of BOPP substrate (12-20 microns) and hot melt adhesive or polymer resin adhesive layer. It has the characteristics of energy saving, simple operation and environmental protection.

[0003] Chinese patent CN221640972U discloses a paper cutting mechanism for an automatic pre-coated film laminating machine. It moves the connecting plate vertically up and down. When the two flattening rollers come into contact with the paper, the two springs are compressed and the two flattening rollers flatten the paper, avoiding flattening the wrinkles in the paper. The cutting blade then begins to cut the paper, achieving the characteristics of easy paper pressing and cutting. This solves the problem that after flattening, the creases in the paper wrinkles are deepened, which reduces the usability of the cut paper.

[0004] In the above solution, although the paper is fixed in the cutting state by the rotatable flattening roller against the paper, the position of the flattening roller will change when the cutting height changes due to the rotation flattening method. This makes it difficult for the roller to effectively cover the paper, and it is still difficult to adapt to changes in paper width.

[0005] Therefore, this utility model provides a paper cutting mechanism specifically for an automatic pre-coated film laminating machine to solve the above problems. Utility Model Content

[0006] In order to overcome the defects of the prior art, this utility model provides a special paper cutting mechanism for an automatic pre-coated film laminating machine. This mechanism solves the problem that when the cutting height changes due to the use of a rotary flattening method, the position of the flattening roller also changes, making it difficult to effectively cover the paper. Furthermore, it is still difficult to adapt to changes in paper width.

[0007] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A paper cutting mechanism for an automatic pre-coated film laminating machine includes: The machine base is equipped with a paper feeding structure, and the paper feeding structure has a cutting groove.

[0008] The paper cutting assembly, located on the machine base, is used to cut the paper on the paper feeding structure at the cutting groove.

[0009] The paper pressing assembly includes two paper pressing frames disposed on both sides of the paper cutting assembly. Each paper pressing frame has a paper pressing wheel rotatably connected to its bottom end, and each paper pressing frame has an elastic support member disposed at its top end.

[0010] An adjustment component, located on the machine base, is used to adjust the position of the pressure roller against the paper via an elastic support.

[0011] Preferably, the paper cutting assembly includes a fixed frame fixedly connected to the machine base, a mounting plate fixedly connected to the fixed frame, a cutter seat slidably connected to the bottom end of the mounting plate, and a cutter component mounted on the cutter seat.

[0012] Preferably, the paper cutting assembly further includes a belt and two pulleys rotatably connected to the mounting plate. A first motor is mounted on the mounting plate, and the output of the first motor is mounted on either pulley. The two pulleys are connected by a belt drive, and the belt is fixedly connected to the cutter holder.

[0013] Preferably, the elastic support includes a fixed sleeve fixedly connected to the paper presser, a sliding sleeve slidably connected to the paper presser, and a spring sleeved on the paper presser, with the two ends of the spring abutting against the sliding sleeve and the fixed sleeve respectively.

[0014] Preferably, the adjustment component includes a control box, two support frames are fixedly connected to the machine base, and the bottom surface of the control box is fixedly connected to the support frames. A second moving groove is provided on the support frame, and the sliding sleeve is located below the support frame.

[0015] Preferably, the bottom surface of the control box is provided with a first moving groove, and the first moving groove is connected to the second moving groove. The control box is provided with two sets of linkage seats, and each linkage seat is provided with a limit groove. The top of the paper pressing frame passes through the second moving groove and the linkage seat in sequence and is fixedly connected to a limit block, and the limit block is slidably connected in the limit groove.

[0016] Preferably, the adjustment assembly further includes a second motor mounted on the control box, the output shaft of the second motor is equipped with a bidirectional screw, and two movable seats are threadedly connected to the bidirectional screw, with two sets of linkage seats respectively fixedly connected to the two movable seats.

[0017] Preferably, a guide rod is fixedly connected inside the control box, and both movable seats are slidably connected to the guide rod.

[0018] The beneficial effects of this utility model are as follows: 1. The second motor drives the bidirectional screw to rotate, causing the two moving seats on the bidirectional screw to move in opposite directions. The moving seats are fixedly connected to the linkage seat, and the linkage seat slides with the limit block at the top of the paper presser through the limit groove, so as to realize the synchronous adjustment of the distance between the two paper pressers. It can quickly adapt to different widths of laminated paper, greatly improve the versatility of the special paper cutting mechanism of the automatic pre-coated film laminating machine, and reduce the equipment debugging time and operation complexity caused by paper specification changes.

[0019] 2. By setting up elastic support components, the two ends of the spring are respectively pressed against the sliding sleeve and the fixed sleeve. The elasticity of the spring itself forms elastic support for the sliding sleeve, so that the pressure roller at the bottom of the paper presser can flexibly adjust the pressing height and pressure according to the actual thickness of the paper. This ensures that the pressure roller is always pressed tightly against the paper surface with appropriate pressure, avoiding paper loosening or excessive compression caused by differences in paper thickness. This provides a stable guarantee for paper positioning when the paper cutting component is cutting, and reduces paper cutting quality problems caused by positioning deviation. Attached Figure Description

[0020] Figure 1 The three-dimensional representation of this utility model Figure 1 .

[0021] Figure 2 The three-dimensional representation of this utility model Figure 2 .

[0022] Figure 3 This is a cross-sectional view of the present invention.

[0023] Figure 4 This utility model Figure 3 An enlarged schematic diagram of the structure at point A in the middle.

[0024] In the diagram: 1. Machine base; 2. Fixed frame; 3. First motor; 4. Pulley; 5. Belt; 6. Cutter holder; 7. Cutter component; 8. Support frame; 9. Paper presser; 10. Paper presser wheel; 11. Mounting plate; 12. Control box; 13. Second motor; 14. Paper feeding structure; 15. Cutter groove; 16. Bidirectional screw; 17. Moving seat; 18. Guide rod; 19. Linkage seat; 20. Sliding sleeve; 21. Fixed sleeve; 22. Spring; 23. First moving groove; 24. Second moving groove; 25. Limiting groove; 26. Limiting block. Detailed Implementation

[0025] The following will refer to the attached reference. Figures 1 to 4 The various embodiments of this utility model will be described in detail below. Those skilled in the art should understand that these embodiments are merely illustrative of the technical principles of this utility model and are not intended to limit the scope of protection of this utility model.

[0026] A paper cutting mechanism for an automatic pre-coated film laminating machine includes a machine base 1, a paper cutting component, a paper pressing component, and an adjustment component.

[0027] The machine 1 is equipped with a paper feeding structure 14, and a cutting groove 15 is provided on the paper feeding structure 14. The existing structure of the paper feeding structure 14 is capable of conveying paper and other substrates. The cutting groove 15 is a connecting groove.

[0028] The paper cutting assembly is set on the machine base 1 and is used to cut the paper on the paper feeding structure 14 through the cutting groove 15. The paper cutting assembly includes a fixed frame 2 fixedly connected to the machine base 1, a mounting plate 11 fixedly connected to the fixed frame 2, a cutter seat 6 slidably connected to the bottom end of the mounting plate 11, and a cutter 7 installed on the cutter seat 6.

[0029] The slidable cutter seat 6 at the bottom of the mounting plate 11 can drive the cutter 7 to move within the cutter groove 15, thereby cutting the film-coated substrate on the paper feeding structure 14.

[0030] The paper cutting assembly also includes a belt 5 and two pulleys 4 rotatably connected to the mounting plate 11. A first motor 3 is mounted on the mounting plate 11, and the output of the first motor 3 is mounted on either pulley 4. The two pulleys 4 are connected by a belt 5, and the belt 5 is fixedly connected to the cutter holder 6.

[0031] After the output shaft of the first motor 3 drives any one of the pulleys 4 to rotate, the two pulleys 4 rotate synchronously with the help of the belt 5. When the belt 5 moves, it can drive the cutter seat 6 to move, so that the cutter seat 6 completes the paper cutting operation through the cutter 7 when it moves.

[0032] In this embodiment, the paper pressing assembly includes two paper pressing frames 9 disposed on both sides of the paper cutting assembly. Each paper pressing frame 9 is rotatably connected to a paper pressing wheel 10 at its bottom end, and each paper pressing frame 9 is provided with an elastic support member at its top end.

[0033] The paper presser 9 can be a straight rod, a curved rod, or a diagonal rod. The paper presser roller 10 at the bottom of the paper presser 9 abuts against the cardboard, which can position the cardboard in the cutting state and ensure the cutting quality of the cardboard.

[0034] The elastic support includes a fixed sleeve 21 fixedly connected to the paper presser 9, a sliding sleeve 20 slidably connected to the paper presser 9, and a spring 22 sleeved on the paper presser 9, with the two ends of the spring 22 abutting against the sliding sleeve 20 and the fixed sleeve 21 respectively.

[0035] The spring 22 provides elastic support for the sliding sleeve 20, allowing the paper pressing roller 10 on the paper presser 9 to adjust adaptively to the thickness of the paperboard.

[0036] In this embodiment, the adjustment component is set on the machine base 1 and is used to adjust the position of the paper pressing roller 10 against the paper through the elastic support. The adjustment component includes a control box 12. Two support frames 8 are fixedly connected to the machine base 1, and the bottom surface of the control box 12 is fixedly connected to the support frame 8. A second moving groove 24 is opened on the support frame 8, and the sliding sleeve 20 is located below the support frame 8.

[0037] The width and length of the sliding sleeve 20 are both greater than the second moving groove 24, so as to prevent the sliding sleeve 20 from passing through the second moving groove 24 and entering the support frame 8. The support frame 8 can be used to support the sliding sleeve 20.

[0038] The bottom surface of the control box 12 is provided with a first moving groove 23, and the first moving groove 23 is connected to the second moving groove 24. The control box 12 is provided with two sets of linkage seats 19, and each linkage seat 19 is provided with a limit groove 25. The top of the paper presser 9 passes through the second moving groove 24 and the linkage seat 19 in sequence and is fixedly connected to the limit block 26, and the limit block 26 is slidably connected in the limit groove 25.

[0039] To prevent the paper presser 9 from detaching from the linkage seat 19, the paper presser 9 can drive the limit block 26 to slide inside the limit groove 25 when there is a longitudinal change, so as to ensure the stability of the paper presser 9 during the lifting and lowering process. It can also limit the maximum rising distance and the maximum falling distance of the paper presser 9.

[0040] The adjustment assembly also includes a second motor 13 mounted on the control box 12. The output shaft of the second motor 13 is equipped with a bidirectional screw 16. Two movable seats 17 are threadedly connected to the bidirectional screw 16. Two sets of linkage seats 19 are respectively fixedly connected to the two movable seats 17.

[0041] The output shaft of the second motor 13 drives the bidirectional screw 16 to rotate, and causes the two moving seats 17 to move towards each other on the bidirectional screw 16. This adjusts the distance between the two moving seats 17 and the linkage seat 19, so that the position of the paper pressing wheel 10 on the paper pressing frame 9 can be adjusted according to the change in paper width.

[0042] In this embodiment, a guide rod 18 is fixedly connected inside the control box 12, and both movable seats 17 are slidably connected to the guide rod 18.

[0043] The movement of the movable seat 17 is guided by the guide rod 18, thereby improving the stability of the movable seat 17 within the control box 12.

[0044] It should be noted that in the description of this utility model, terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," which indicate direction or positional relationships, are based on the direction or positional relationships shown in the accompanying drawings. These are used merely for ease of description and do not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on 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.

[0045] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0046] The technical solution of this utility model has been described above with reference to the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the protection scope of this utility model is obviously not limited to these specific embodiments. Without departing from the principle of this utility model, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the protection scope of this utility model.

Claims

1. A paper cutting mechanism for an automatic pre-coated film laminator, characterized by, include: The machine base (1) is provided with a paper feeding structure (14) and a cutting groove (15) is provided on the paper feeding structure (14). The paper cutting assembly is set on the machine base (1) and is used to cut the paper on the paper feeding structure (14) through the cutting groove (15); The paper pressing assembly includes two paper pressing frames (9) disposed on both sides of the paper cutting assembly. Each paper pressing frame (9) is rotatably connected to a paper pressing wheel (10) at its bottom end, and each paper pressing frame (9) is provided with an elastic support at its top end. An adjustment component is provided on the machine base (1) for adjusting the position of the paper pressure roller (10) against the paper by means of an elastic support.

2. The automatic pre-coating film laminating machine special paper cutting mechanism according to claim 1, characterized in that, The paper cutting assembly includes a fixed frame (2) fixedly connected to the machine base (1), a mounting plate (11) fixedly connected to the fixed frame (2), a cutter seat (6) slidably connected to the bottom end of the mounting plate (11), and a cutter (7) installed on the cutter seat (6).

3. The paper cutting mechanism for an automatic pre-coating and laminating machine according to claim 2, characterized in that, The paper cutting assembly also includes a belt (5) and two pulleys (4) rotatably connected to the mounting plate (11). A first motor (3) is mounted on the mounting plate (11), and the output of the first motor (3) is mounted on any one of the pulleys (4). The two pulleys (4) are connected by a belt (5), and the belt (5) is fixedly connected to the cutter holder (6).

4. The paper cutting mechanism for an automatic pre-coated film laminating machine according to claim 1, characterized in that, The elastic support includes a fixed sleeve (21) fixedly connected to the paper presser (9), a sliding sleeve (20) slidably connected to the paper presser (9), and a spring (22) sleeved on the paper presser (9), with the two ends of the spring (22) abutting against the sliding sleeve (20) and the fixed sleeve (21) respectively.

5. The automatic pre-coating film laminating machine special paper cutting mechanism according to claim 4, characterized in that, The adjustment assembly includes a control box (12), two support frames (8) are fixedly connected to the machine base (1), and the bottom surface of the control box (12) is fixedly connected to the support frame (8). A second moving groove (24) is provided on the support frame (8), and the sliding sleeve (20) is located below the support frame (8).

6. The paper cutting mechanism for an automatic pre-coating and laminating machine according to claim 5, characterized in that, The bottom surface of the control box (12) is provided with a first moving groove (23), and the first moving groove (23) is connected to the second moving groove (24). The control box (12) is provided with two sets of linkage seats (19), and each linkage seat (19) is provided with a limit groove (25). The top of the paper presser (9) passes through the second moving groove (24) and the linkage seat (19) in sequence and is fixedly connected to a limit block (26), and the limit block (26) is slidably connected in the limit groove (25).

7. The paper cutting mechanism for an automatic pre-coated film laminating machine according to claim 6, characterized in that, The adjustment assembly also includes a second motor (13) installed on the control box (12). The output shaft of the second motor (13) is equipped with a bidirectional screw (16). Two movable seats (17) are threadedly connected to the bidirectional screw (16), and two sets of linkage seats (19) are respectively fixedly connected to the two movable seats (17).

8. The automatic pre-coating film laminating machine special paper cutting mechanism according to claim 7, characterized in that, The control box (12) is fixedly connected to a guide rod (18), and the two movable seats (17) are slidably connected to the guide rod (18).

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