Anisotropic conductive film roll tension adjusting device

Abstract

The utility model discloses anisotropic conductive film coiled material tension adjusting device, including the panel, the outer wall fixedly connected with two mounting brackets of panel, the outer wall of two mounting brackets all are rotatably connected with horizontal guide wheel, the outer wall slidingly connected with the adjusting wheel of panel, the outer wall rotatably connected with the round sleeve of adjusting wheel, the inside of round sleeve places lightweight spring, one end of lightweight spring is fixedly connected with cross bar. The utility model discloses through the screw thread cooperation of cross bar and screw cap, has realized the fine adjustment of tension size, the compression elastic force design of lightweight spring has provided stable and reliable tension compensation, the sliding cooperation of adjusting wheel and round sleeve has guaranteed the stability of tension adjusting process, the synergies of buffer spring and damping cover provide instant buffering in the process of pressing down, can restore the initial state when the air cylinder resets, guarantee the stability of continuous operation, and the symmetrical arrangement of horizontal guide wheel effectively prevents the running deviation of coiled material.

Description

Technical Field

[0001] This utility model relates to the field of anisotropic conductive film bonding technology, and in particular to an anisotropic conductive film roll tension adjustment device. Background Technology

[0002] Anisotropic conductive film (ACF) is a polymer composite material with anisotropic conductivity, widely used in electronic packaging and microelectronic device connections. Its main characteristic is conductivity in the vertical direction (Z-axis) and insulation in the horizontal direction (X, Y axes). During the application of anisotropic conductive film, adjusting the bonding pressure is crucial to ensuring uniform distribution of conductive particles and effective conduction.

[0003] In the prior art, tension is prone to fluctuation due to changes in the unwinding speed of the roll material or the impact of the pressing mechanism, resulting in uneven stretching of the conductive film, or even breakage or wrinkles, which affects the adhesion effect. Therefore, we propose an anisotropic conductive film roll tension adjustment device to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing an anisotropic conductive film roll tension adjustment device.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] An anisotropic conductive film roll tension adjustment device includes a panel. Two mounting brackets are fixedly connected to the outer wall of the panel. Horizontal guide wheels are rotatably connected to the outer walls of both mounting brackets. An adjusting wheel is slidably connected to the outer wall of the panel. A circular sleeve is rotatably connected to the outer wall of the adjusting wheel. A lightweight spring is placed inside the circular sleeve. A cross rod is fixedly connected to one end of the lightweight spring. A threaded cap is threaded onto the outer wall of the cross rod. The outer wall of the threaded cap is fixedly connected to the outer wall of the panel. A tension adjustment assembly is provided on the outer wall of the panel.

[0007] Preferably, the tension adjustment assembly includes two rectangular blocks, the outer wall of the panel is fixedly connected to the outer walls of the two rectangular blocks, two vertical rods are fixedly connected between the two rectangular blocks, damping sleeves are slidably fitted on the outer walls of the two vertical rods, the same moving part is fixedly fitted on the outer walls of the two damping sleeves, buffer springs are fitted on the outer walls of the two vertical rods, and traction wheels are rotatably connected to the outer walls of the moving part. The tension of the anisotropic conductive film roll is adjusted by setting the tension adjustment assembly.

[0008] Preferably, a frame is fixedly connected to the outer wall of the panel, a cylinder is fixedly connected to the outer wall of the frame, and a pressing head is fixedly connected to the bottom of the cylinder output end, which drives the anisotropic conductive film to be pressed down.

[0009] Preferably, a take-up wheel and an unwind wheel are rotatably connected to the outer wall of the panel.

[0010] Preferably, the outer wall of the moving part is in contact with the outer wall of the panel, and the contact surface has friction, which can be used as friction damping.

[0011] Preferably, the bottom of each of the two buffer springs is fixedly connected to the top of one of the rectangular blocks, and the top of each of the two buffer springs is fixedly connected to the bottom of the moving part. The damping of the moving part comes from the friction between the two damping sleeves and the two vertical rods.

[0012] Compared with the prior art, the advantages of this utility model are:

[0013] This solution achieves fine-tuning of tension through the threaded engagement of the cross rod and the threaded cap; the compression spring design of the lightweight spring provides stable and reliable tension compensation; the sliding engagement of the adjusting wheel and the circular sleeve ensures the smoothness of the tension adjustment process; the synergistic effect of the buffer spring and the damping sleeve provides instant buffering during the pressing process and can quickly return to the initial state when the cylinder resets, ensuring the stability of continuous operation; the symmetrical arrangement of the horizontal guide wheels effectively prevents the roll material from deviating. Attached Figure Description

[0014] To more clearly illustrate the technical solution of this utility model, the drawings used in the description of the specific embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a three-dimensional structural diagram of an anisotropic conductive film roll tension adjustment device proposed in this utility model.

[0016] Figure 2 This is a cross-sectional structural schematic diagram of an anisotropic conductive film roll tension adjustment device proposed in this utility model;

[0017] Figure 3 This utility model proposes a tension adjustment device for anisotropic conductive film rolls. Figure 2 A magnified structural diagram of part A in the diagram;

[0018] Figure 4 This is a partial cross-sectional structural diagram of an anisotropic conductive film roll tension adjustment device proposed in this utility model.

[0019] In the diagram: 1. Panel; 2. Frame; 3. Cylinder; 4. Lower pressure head; 5. Mounting bracket; 6. Horizontal guide wheel; 7. Rewinding wheel; 8. Adjusting wheel; 9. Circular sleeve; 10. Light spring; 11. Cross bar; 12. Threaded cap; 13. Rectangular block; 14. Vertical rod; 15. Damping sleeve; 16. Moving part; 17. Buffer spring; 18. Traction wheel; 19. Unwinding wheel. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0021] Depend on Figures 1-4 As shown, an anisotropic conductive film roll tension adjustment device is disclosed, comprising a panel 1, a frame 2 fixedly connected to the outer wall of the panel 1, a cylinder 3 fixedly connected to the outer wall of the frame 2, a pressing head 4 fixedly connected to the bottom of the output end of the cylinder 3, the pressing head 4 being used to perform the attachment action of the conductive film, and two mounting brackets 5 fixedly connected to the outer wall of the panel 1, the outer walls of the two mounting brackets 5 being rotatably connected to horizontal guide wheels 6 via existing shafts, the horizontal guide wheels 6 being used to guide the running path of the anisotropic conductive film.

[0022] An adjusting wheel 8 is slidably connected to the outer wall of panel 1. A circular sleeve 9 is rotatably connected to the outer wall of the adjusting wheel 8 via an existing shaft. The circular sleeve 8 is located on the back of panel 1, and an inclined groove is provided on the outer wall of panel 1 to assist the adjusting wheel 8 in moving obliquely upward. A light spring 10 is placed inside the circular sleeve 9. The adjusting wheel 8 is located obliquely downward by the elastic force of the light spring 10. A cross rod 11 is fixedly connected to one end of the light spring 10. A threaded cap 12 is threaded on the outer wall of the cross rod 11. The outer wall of the threaded cap 12 is fixedly connected to the outer wall of panel 1. Rotating the threaded cap 12 can adjust the extension and retraction of the cross rod 11, thereby changing the preload of the light spring 10 and realizing the tension adjustment.

[0023] The outer wall of panel 1 is provided with a tension adjustment assembly, which includes two rectangular blocks 13. The outer wall of panel 1 is fixedly connected to the outer walls of the two rectangular blocks 13. Two vertical rods 14 are fixedly connected between the two rectangular blocks 13. The outer walls of the two vertical rods 14 are slidably fitted with damping sleeves 15. The damping sleeves 15 are made of metal. The two damping sleeves 15 move up and down through the two vertical rods 14, and the contact surfaces between them have friction. The outer walls of the two damping sleeves 15 are fixedly fitted with the same moving part 16, and the outer wall of the moving part 16 is in contact with the outer wall of panel 1.

[0024] Both vertical rods 14 are fitted with buffer springs 17 on their outer walls. The bottom of each buffer spring 17 is fixedly connected to the top of one of the rectangular blocks 13. The top of each buffer spring 17 is fixedly connected to the bottom of the moving part 16. The two buffer springs 17 prevent excessive up-and-down movement through friction damping. The outer wall of the moving part 16 is rotatably connected to a traction wheel 18 via an existing shaft. The outer wall of the panel 1 is rotatably connected to a take-up wheel 7 via an existing shaft. The outer wall of the panel 1 is rotatably connected to an unwinding wheel 19 via an existing shaft. The take-up wheel 7 and the unwinding wheel 19 are rotated by an existing motor.

[0025] Working Principle: In use, panel 1 is part of the existing ACF bonding machine structure. The structure installed on panel 1 is mainly used to assist in the unwinding and winding of the anisotropic conductive film roll, as well as the pressing of the anisotropic conductive film roll for bonding. Unwinding roller 19 is used for unwinding the anisotropic conductive film roll, while winding roller 7 is used for winding up waste material of the anisotropic conductive film roll. During the unwinding process, the anisotropic conductive film roll passes sequentially through traction roller 18, adjusting roller 8, and two horizontal guide rollers 6. When cylinder 3 rotates and drives the pressing head 4 downward, the bottom of the pressing head 4 contacts the top of the anisotropic conductive film, causing it to press down and bond the conductive particles at the bottom of the anisotropic conductive film. After bonding is completed, cylinder 3 rotates to reset. During this process, the anisotropic conductive film... In the tensioned state, the adjusting wheel 8 drives the sleeve 9 to move obliquely upward. The sleeve 9 moves along the cross rod 11, and the movement of the sleeve 9 compresses the light spring 10. At the same time, when it is necessary to adjust the tension, simply rotate the cross rod 11 to rotate its threaded cap 12, which causes the cross rod 11 to extend or retract, changing the compression force of the light spring 10 to achieve the purpose of tension adjustment. The tension of the unwinding wheel 19 is adjusted through the traction wheel 18 and the two buffer springs 17. During the downward pressing process, the moving part 16 moves downward through the two damping sleeves 15. The downward movement of the two damping sleeves 15 compresses the two buffer springs 17. During the resetting process of the cylinder 3, the light spring 10 and the two buffer springs 17 reset through the compression force.

[0026] It should be noted that when actually put into use, an existing PLC controller can be added. The PLC controller is electrically connected to the motor, which facilitates the control of the overall operation.

[0027] All standard parts used in this utility model can be purchased from the market. Irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. In addition, the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here. Furthermore, the structure and principle of the components known to those skilled in the art can be learned by those skilled in the art through technical manuals or conventional experimental methods.

[0028] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A tension adjustment device for anisotropic conductive film roll, comprising a panel (1), characterized in that, Two mounting brackets (5) are fixedly connected to the outer wall of the panel (1). Horizontal guide wheels (6) are rotatably connected to the outer walls of both mounting brackets (5). An adjusting wheel (8) is slidably connected to the outer wall of the panel (1). A sleeve (9) is rotatably connected to the outer wall of the adjusting wheel (8). A light spring (10) is placed inside the sleeve (9). A cross rod (11) is fixedly connected to one end of the light spring (10). A threaded cap (12) is threaded onto the outer wall of the cross rod (11). The outer wall of the threaded cap (12) is fixedly connected to the outer wall of the panel (1). A tension adjustment assembly is provided on the outer wall of the panel (1).

2. The anisotropic conductive film roll tension adjustment device according to claim 1, characterized in that, The tension adjustment assembly includes two rectangular blocks (13). The outer wall of the panel (1) is fixedly connected to the outer walls of the two rectangular blocks (13). Two vertical rods (14) are fixedly connected between the two rectangular blocks (13). The outer walls of the two vertical rods (14) are slidably fitted with damping sleeves (15). The outer walls of the two damping sleeves (15) are fixedly fitted with the same moving part (16). The outer walls of the two vertical rods (14) are fitted with buffer springs (17). The outer wall of the moving part (16) is rotatably connected with a traction wheel (18).

3. The anisotropic conductive film roll tension adjustment device according to claim 1, characterized in that, A frame (2) is fixedly connected to the outer wall of the panel (1), and a cylinder (3) is fixedly connected to the outer wall of the frame (2). A pressure head (4) is fixedly connected to the bottom of the output end of the cylinder (3).

4. The anisotropic conductive film roll tension adjustment device according to claim 1, characterized in that, The outer wall of the panel (1) is rotatably connected to a take-up wheel (7), and the outer wall of the panel (1) is rotatably connected to an unwind wheel (19).

5. The anisotropic conductive film roll tension adjustment device according to claim 2, characterized in that, The outer wall of the movable part (16) is in contact with the outer wall of the panel (1).

6. The anisotropic conductive film roll tension adjustment device according to claim 2, characterized in that, The bottom of each of the two buffer springs (17) is fixedly connected to the top of one of the rectangular blocks (13), and the top of each of the two buffer springs (17) is fixedly connected to the bottom of the moving part (16).

Images