Anti-wrinkle tensioning structure for film covering and cutting machine

Abstract

The utility model relates to the technical field of laminating and cutting machines, and discloses an anti-wrinkle tensioning structure for a laminating and cutting machine, which comprises an equipment base, one end of the top of the equipment base is provided with a cutting device, and the other end of the top of the equipment base is provided with two first mounting frames. According to the anti-wrinkle tensioning structure for the laminating and cutting machine, through the arrangement of the lower pressing rollers and the upper pressing rollers, equipment has the inner side and outer side tensioning function at the same time, so that the tensioning mode can be flexibly adjusted according to the requirement of a laminating material, and it is guaranteed that the laminating material is evenly and flatly stressed; the double tension adjusting rollers achieve high precision and high stability through cooperative control, and are the first choice of high-speed, wide-width and high-added-value production, so that the modern production requirements of high precision and multiple scenes are met, and the height of the third mounting frame is adjusted through the fixing mechanism so as to meet different tensioning functions and tensioning forces.

Description

Technical Field

[0001] This utility model relates to the field of film-coated cutting machine technology, and in particular to an anti-wrinkle tensioning structure for film-coated cutting machines. Background Technology

[0002] The laminating and cutting machine is mainly used to laminate materials such as paper, cards, and photos, forming a transparent protective film on their surface. This increases the material's strength, wear resistance, and water resistance, extending its service life. After the ITO film printing silver path is cured in an IR furnace, the material is automatically coated with a protective film and cut into individual pieces, effectively saving raw material waste and reducing manual operation.

[0003] Chinese patent discloses an anti-wrinkle tensioning structure for a laminating and cutting machine (authorization announcement number CN221697908U). This patented technology features a threaded rod that drives a tensioning roller connected to a fixed sleeve to move up and down, causing the tensioning roller to press the laminating paper as it passes through. Bolts and threaded holes are provided to fix the threaded rod in a fixed frame. Pressure rollers and movable rollers are provided to smooth the laminating paper as it passes through, facilitating tension adjustment of the laminating paper and preventing wrinkles from occurring during subsequent cutting, thus improving the quality of the laminating and cutting machine.

[0004] Regarding the above-mentioned and existing related technologies, the inventors believe that the following defects often exist: Current equipment only has one coating material tensioning solution, namely outer tensioning. Different coating materials require different tensioning methods to ensure uniform stress and flatness of the coating material. The existing single tensioning mode lacks the ability to dynamically adapt to material properties, resulting in problems such as limited stress control range and insufficient film bonding accuracy when the equipment is dealing with diversified processing needs, making it difficult to meet the requirements of high-precision and multi-scenario modern production. Utility Model Content

[0005] The technical problem to be solved by this utility model is that the existing technology has the disadvantage of a single tensioning method, which makes it difficult to meet the tensioning requirements of various coating materials. To this end, we propose an anti-wrinkle tensioning structure for a coating cutting machine.

[0006] To achieve the above objectives, this application adopts the following technical solution: an anti-wrinkle tensioning structure for a laminating and cutting machine, comprising a machine base, a cutting device mounted on one end of the top of the machine base, and two first mounting brackets mounted on the other end of the top of the machine base. A first lower roller is rotatably connected to the top of each first mounting bracket via a rotating shaft. A first upper roller is located at the bottom of the first lower roller, and both ends of the first upper roller are rotatably connected to the first mounting brackets. Two second mounting brackets are mounted on the top of the machine base near the cutting device, and the tops of the second mounting brackets are rotatably connected to... The device has a second upper roller, and a second lower roller is located at the bottom of the second upper roller. Both ends of the second lower roller are rotatably connected to a second mounting frame. Four mounting shells are located in the middle of the top of the device base. A third mounting frame is slidably connected inside each of the four mounting shells. An upper pressure roller is rotatably connected to the top of each third mounting frame via a rotating shaft. A lower pressure roller is rotatably connected to the bottom of each upper pressure roller. A groove is formed at the bottom of each third mounting frame, and several toothed grooves are formed on one side of the groove. A fixing mechanism for fixing the third mounting frame is installed inside each mounting shell.

[0007] Preferably, the fixing mechanism includes a square slide rod fixed inside one side of the mounting housing, a movable block slidably connected to the surface of the square slide rod, a fixed block fixed to the side of the movable block near the tooth groove, a plurality of locking teeth for cooperating with the tooth groove on one side of the fixed block, a control rod fixed to one side of the movable block, and a through groove slidably connected to the control rod on one side of the mounting housing.

[0008] Preferably, the upper pressure roller is an arc-shaped roller with its convex surface facing outward.

[0009] Preferably, the mounting housing has a U-shaped groove on the side away from the through groove for use with the lower pressure roller.

[0010] Preferably, a spring is fixed to the side of the movable block away from the fixed block, the other end of the spring is fixed to the inner wall of the mounting shell, and the other end of the square slide rod passes through the movable block and is fixed with a limiting plate that cooperates with the spring.

[0011] Preferably, two first guide rods are installed on one side inside the mounting housing, and first guide holes that are slidably connected to the first guide rods are provided on both sides of the bottom of the third mounting bracket.

[0012] Preferably, two second guide rods are installed on the other side inside the mounting shell, and a second guide hole is provided on both sides of the groove to slide and connect with the second guide rod. The diameter of the second guide rod is smaller than that of the first guide rod.

[0013] The technical effects and advantages of this utility model are as follows:

[0014] In this invention, the lower and upper pressure rollers enable the equipment to simultaneously perform inner and outer tensioning functions, thereby allowing for flexible adjustment of the tensioning method according to the needs of the coating material. This ensures that the coating material is subjected to uniform and flat force, thus meeting the requirements of modern production in high-precision and multi-scenario applications.

[0015] In this invention, by setting two sets of lower pressure rollers and upper pressure rollers, the dual tension adjustment rollers achieve high precision and high stability through coordinated control, making it the first choice for high-speed, wide-width, and high-value-added production, thereby meeting the requirements of modern production in high-precision and multi-scenario applications. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the lower pressure roller and upper pressure roller of this utility model;

[0018] Figure 3 This is a cross-sectional view of the mounting shell of this utility model;

[0019] Figure 4 This is a schematic diagram of the disassembled structure of the fixing mechanism of this utility model;

[0020] Figure 5 This is a bottom view of the third mounting bracket of this utility model.

[0021] Legend: 1. Equipment base; 2. Cutting device; 3. First mounting frame; 4. First lower roller; 5. First upper roller; 6. Second mounting frame; 7. Second lower roller; 8. Second upper roller; 9. Mounting shell; 10. Third mounting frame; 11. Lower pressure roller; 12. Upper pressure roller; 13. U-shaped groove; 14. Toothed groove; 15. Square slide bar; 16. Movable block; 17. Fixed block; 18. Clamping tooth; 19. Limiting plate; 20. Control rod; 21. Through groove; 22. Spring; 23. First guide rod; 24. First guide hole; 25. Second guide hole; 26. Second guide rod; 27. Groove. Detailed Implementation

[0022] The present invention will now be described in further detail with reference to the accompanying drawings and preferred embodiments. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.

[0023] Reference Figures 1-5As shown, this utility model provides a technical solution: an anti-wrinkle tensioning structure for a film-coated cutting machine, including a machine base 1, a cutting device 2 installed at one end of the top of the machine base 1, and two first mounting brackets 3 installed at the other end of the top of the machine base 1. A first lower roller 4 is rotatably connected to the top of the first mounting bracket 3 via a rotating shaft, and a first upper roller 5 is provided at the bottom of the first lower roller 4. Both ends of the first upper roller 5 are rotatably connected to the first mounting bracket 3. Two second mounting brackets 6 are installed at the top of the machine base 1 near the cutting device 2. A second upper roller 8 is rotatably connected to the top of the second mounting bracket 6 via a rotating shaft, and a second lower roller 7 is provided at the bottom of the second upper roller 8. Both ends of the second lower roller 7 are rotatably connected to the second mounting bracket 6. Four mounting shells 9 are provided in the middle of the top of the machine base 1, and a third mounting bracket 10 is slidably connected inside each of the four mounting shells 9. An upper pressure roller 12 is rotatably connected to the top of the third mounting bracket 10 via a rotating shaft, and a... The third mounting frame 10 is rotatably connected to the lower pressure roller 11. The bottom of the third mounting frame 10 has a groove 27, and one side of the groove 27 has several toothed grooves 14. The mounting shell 9 has a fixing mechanism for fixing the third mounting frame 10. By setting the lower pressure roller 11 and the upper pressure roller 12, the equipment can simultaneously have internal and external tensioning functions, so that the tensioning method can be flexibly adjusted according to the needs of the coating material to ensure that the coating material is subjected to uniform force and flatness. By setting two sets of lower pressure rollers 11 and upper pressure rollers 12, the dual tension adjustment rollers achieve high precision and high stability through coordinated control, which is the first choice for high-speed, wide-width, and high-value-added production, thereby meeting the modern production requirements of high precision and multiple scenarios. The first lower roller 4 and the first upper roller 5, as well as the second lower roller 7 and the second upper roller 8 are used in conjunction to meet the needs of internal and external tensioning. The height of the third mounting frame 10 is adjusted by the fixing mechanism to meet different tensioning functions and tensioning forces.

[0024] Reference Figures 2-5 As shown in this embodiment: the fixing mechanism includes a square slide rod 15 fixed inside one side of the mounting shell 9. A movable block 16 is slidably connected to the surface of the square slide rod 15. A fixing block 17 is fixed to the side of the movable block 16 near the tooth groove 14. A plurality of locking teeth 18 that cooperate with the tooth groove 14 are provided on one side of the fixing block 17. A control rod 20 is fixed to one side of the movable block 16. A through groove 21 that is slidably connected to the control rod 20 is opened on one side of the mounting shell 9. After controlling the third mounting frame 10 to move up and down and moving the lower pressure roller 11 or the upper pressure roller 12 to a suitable position, the movable block 16 is moved closer to the tooth groove 14 by controlling the control rod 20, so that the locking teeth 18 engage with the tooth groove 14, thereby fixing the position of the third mounting frame 10. The square slide rod 15 and the movable block 16 provide support for the movable block 16. By setting multiple locking teeth 18, the stability of the locking teeth 18 when fixing the third mounting frame 10 can be effectively improved.

[0025] Reference Figure 3 As shown in this implementation scheme: the upper pressure roller 12 is an arc-shaped roller with the convex surface facing outward. When using the upper pressure roller 12 for outer tensioning, combined with the arc-shaped flattening roller, the material stress distribution is reconstructed through physical deformation, which can efficiently solve core problems such as lateral wrinkles and cutting offset. Its advantages are particularly significant in wide-width, high-speed, and high-precision scenarios, and it also has the advantages of cost control and easy maintenance.

[0026] Reference Figure 4 As shown in this embodiment: a U-shaped groove 13 is provided on the side of the mounting shell 9 away from the through groove 21 to cooperate with the lower pressure roller 11. By setting the U-shaped groove 13, the movement of the mounting shell 9 on the lower pressure roller 11 is prevented from being interfered with by the movement of the lower pressure roller 11 when the lower pressure roller 11 moves downward.

[0027] Reference Figure 4 As shown in this embodiment: a spring 22 is fixed on the side of the movable block 16 away from the fixed block 17, and the other end of the spring 22 is fixed to the inner wall of the mounting shell 9. The other end of the square slide rod 15 passes through the movable block 16 and is fixed with a limiting plate 19 that works with the spring 22. By setting the spring 22, when the locking teeth 18 and the tooth groove 14 are locked, the position of the movable block 16 is limited, so as to prevent the movable block 16 from shifting due to the vibration generated during the operation of the equipment. The limiting plate 19 sets the limit on the movable block 16, preventing the movable block 16 from detaching from the surface of the square slide rod 15 when the spring 22 pushes the movable block 16 to move.

[0028] Reference Figure 3 and Figure 5 As shown in this embodiment: two first guide rods 23 are installed on one side inside the mounting shell 9. First guide holes 24, which are slidably connected to the first guide rods 23, are opened on both sides of the bottom of the third mounting bracket 10. Two second guide rods 26 are installed on the other side inside the mounting shell 9. Second guide holes 25, which are slidably connected to the second guide rods 26, are opened on both sides of the groove 27. The diameter of the second guide rod 26 is smaller than that of the first guide rod 23. Through the slidable connection between the first guide rod 23 and the first guide hole 24, the movement of the third mounting bracket 10 is assisted and guided, preventing the third mounting bracket 10 from deviating during movement. The cooperation of the second guide hole 25 and the second guide rod 26, along with the assistance of the first guide rod 23 and the first guide hole 24, together provide auxiliary guidance for the third mounting bracket 10.

[0029] Working Principle: The lower pressure roller 11 and upper pressure roller 12 enable the equipment to simultaneously perform internal and external tensioning functions. This allows for flexible adjustment of the tensioning method according to the needs of the coating material, ensuring uniform and flat stress on the coating material. By setting two sets of lower pressure rollers 11 and upper pressure rollers 12, the dual tension adjustment rollers achieve high precision and high stability through coordinated control, making it the preferred choice for high-speed, wide-width, and high-value-added production. This meets the requirements of modern production, which demands high precision and versatility. The coordinated use of the first lower roller 4, the first upper roller 5, the second lower roller 7, and the second upper roller 8 ensures proper internal and external tensioning. To meet different tensioning needs, the height of the third mounting frame 10 is adjusted via a fixing mechanism. This allows for different tensioning functions and forces. After the third mounting frame 10 is moved up and down and the lower pressure roller 11 or upper pressure roller 12 is moved to the appropriate position, the control lever 20 moves the movable block 16 closer to the toothed groove 14, causing the locking teeth 18 to engage with the toothed groove 14, thus fixing the position of the third mounting frame 10. The square slide rod 15 and the movable block 16 provide support. The multiple locking teeth 18 effectively improve the stability of the locking teeth 18 when fixing the third mounting frame 10. Qualitatively, when using the upper pressure roller 12 for outer tensioning, combined with the arc-shaped flattening roller, the material stress distribution is reconstructed through physical deformation, which can efficiently solve core problems such as lateral wrinkles and cutting offset. Its advantages are particularly significant in wide-width, high-speed, and high-precision scenarios, and it also has the advantages of cost control and easy maintenance. The U-shaped groove 13 is set to avoid motion interference caused by the mounting shell 9 on the movement of the lower pressure roller 11 when it moves downward. The spring 22 is set to limit the position of the movable block 16 after the locking tooth 18 is locked with the tooth groove 14, so as to prevent the movable block 16 from vibrating due to the operation of the equipment. In the case of displacement, the limiting plate 19 limits the movement of the movable block 16, preventing the movable block 16 from detaching from the surface of the square slide bar 15 when the spring 22 pushes the movable block 16 to move. The first guide rod 23 and the first guide hole 24 are slidably connected, which assists in guiding the movement of the third mounting bracket 10 and prevents the third mounting bracket 10 from deviating during movement. The second guide hole 25 and the second guide rod 26 work together to assist the first guide rod 23 and the first guide hole 24, thus providing auxiliary guidance for the third mounting bracket 10.

[0030] In the description of this utility model, it should be noted that, 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 based on the specific circumstances.

[0031] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A wrinkle-preventing tensioning structure for a film cutting machine, comprising a device base (1), characterized in that: A cutting device (2) is installed at one end of the top of the equipment base (1), and two first mounting brackets (3) are installed at the other end of the top of the equipment base (1). The top of the first mounting bracket (3) is rotatably connected to a first lower roller (4) via a rotating shaft. A first upper roller (5) is provided at the bottom of the first lower roller (4). Both ends of the first upper roller (5) are rotatably connected to the first mounting bracket (3). Two second mounting brackets (6) are installed at the top of the equipment base (1) near the cutting device (2). The top of the second mounting bracket (6) is rotatably connected to a second upper roller (8) via a rotating shaft. A second lower roller (7) is provided at the bottom of the second upper roller (8). Both ends of the second lower roller (7) are rotatably connected to the second mounting frame (6). Four mounting shells (9) are provided in the middle of the top of the equipment base (1). The three mounting frames (10) are slidably connected inside the four mounting shells (9). The top of the three mounting frames (10) is rotatably connected to the upper pressure roller (12) through a rotating shaft. The bottom of the upper pressure roller (12) is provided with a lower pressure roller (11) rotatably connected to the three mounting frames (10). The bottom of the three mounting frames (10) is provided with a groove (27). Several toothed grooves (14) are provided on one side of the groove (27). The mounting shell (9) is equipped with a fixing mechanism for fixing the three mounting frames (10).

2. The anti-wrinkle tensioning structure for a film cutting machine according to claim 1, characterized in that: The fixing mechanism includes a square slide rod (15) fixed inside one side of the mounting shell (9). A movable block (16) is slidably connected to the surface of the square slide rod (15). A fixing block (17) is fixed to the side of the movable block (16) near the tooth groove (14). A plurality of locking teeth (18) that cooperate with the tooth groove (14) are provided on one side of the fixing block (17). A control rod (20) is fixed to one side of the movable block (16). A through groove (21) that is slidably connected to the control rod (20) is opened on one side of the mounting shell (9).

3. The anti-wrinkle tensioning structure for a film cutting machine according to claim 1, characterized in that: The upper pressure roller (12) is an arc-shaped roller with its convex surface facing outward.

4. The anti-wrinkle tensioning structure for a film cutting machine according to claim 1, characterized in that: The mounting housing (9) has a U-shaped groove (13) on the side away from the through groove (21) for use with the lower pressure roller (11).

5. The anti-wrinkle tensioning structure for a film cutting machine according to claim 2, characterized in that: A spring (22) is fixed on the side of the movable block (16) away from the fixed block (17). The other end of the spring (22) is fixed to the inner wall of the mounting shell (9). The other end of the square slide rod (15) passes through the movable block (16) and is fixed with a limiting plate (19) that works in conjunction with the spring (22).

6. The anti-wrinkle tensioning structure for a film cutting machine according to claim 1, characterized in that: Two first guide rods (23) are installed on one side inside the mounting shell (9), and first guide holes (24) that are slidably connected to the first guide rods (23) are opened on both sides of the bottom of the third mounting bracket (10).

7. The anti-wrinkle tensioning structure for a film cutting machine according to claim 1, characterized in that: Two second guide rods (26) are installed on the other side inside the mounting shell (9). The groove (27) has second guide holes (25) on both sides that are slidably connected to the second guide rods (26). The diameter of the second guide rod (26) is smaller than that of the first guide rod (23).

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