Tension degree adjusting device for protective film processing

Abstract

The utility model discloses a tensity adjusting device for processing a protective film. The tensity adjusting device comprises a main supporting plate, and two sets of adjusting frames are arranged between a first support and a second support. A tensioning roller is rotationally connected between the movable plates; the tops of the two moving plates are fixedly connected with lengthening rods, and the inner wall between the lengthening rods is rotationally connected with a two-way lead screw. The top of the lengthening rod is fixedly connected with a limiting plate, a moving block is slidably connected into the limiting plate, the bottom of the moving block is fixedly connected with a moving ring, and the outer surface of the side, away from the bidirectional lead screw, of the moving ring is rotationally connected with a roller. According to the tensioning degree adjusting device for protective film processing, the edge of a protective film can be clamped between the rolling wheel and the tensioning roller, so that the position of the protective film is limited, the protective film cannot deviate in the transportation process, the cut protective film waste is in a regular shape, and the production efficiency is improved. And therefore, the waste materials can be conveniently used for parts with other sizes, and the maximum utilization of the protective film is achieved.

Description

Technical Field

[0001] This utility model relates to the field of protective film processing technology, and in particular to a tension adjustment device for protective film processing. Background Technology

[0002] Some electronic components, such as screens, are covered with a protective film at the factory to ensure a smooth screen surface. The protective film needs to be cut before it is applied. Before cutting, the protective film is stored in a roll. Therefore, during cutting, the protective film needs to be unrolled from the surface of the roll first. Since the cutting and unrolling speeds are not synchronized, the tension of the protective film will change during transportation and unrolling. In order to adjust the tension of the protective film, tension adjustment devices are usually set between the cutting devices.

[0003] To maximize the utilization of the protective film during cutting, it is necessary to ensure that the protective film does not tilt during transportation. Furthermore, it is essential to ensure that the cutting die and the edge of the protective film are parallel to the film. This maximizes the utilization of the protective film area and makes the waste material more regular in shape, allowing the waste material at the edges to be used for the protection of other smaller parts.

[0004] To address the above situation, we propose a tension adjustment device for protective film processing. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a tension adjustment device for protective film processing.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A tension adjustment device for protective film processing includes a main support plate. The top of the main support plate is symmetrically and fixedly connected to a first bracket. The tops of two sets of the first brackets are rotatably connected to a first fixed roller. The top of the main support plate away from the first bracket is symmetrically and fixedly connected to a second bracket. The inner wall between the two sets of the second brackets is rotatably connected to a second fixed roller. Two sets of adjustment frames are provided between the first bracket and the second bracket. The bottom of the adjustment frame is fixedly connected to the top of the main support plate.

[0008] A tension spring is fixedly connected to the bottom of the adjustment frame, a movable plate is fixedly connected to the top of the tension spring, and a tension roller is rotatably connected between the movable plates.

[0009] The tops of the two sets of movable plates are fixedly connected with extension rods, and the inner walls between the extension rods are rotatably connected with bidirectional lead screws;

[0010] The top of the extension rod is fixedly connected to a limiting plate, and a moving block is slidably connected inside the limiting plate. A moving ring is fixedly connected to the bottom of the moving block, and a roller is rotatably connected to the outer surface of the moving ring on the side away from the bidirectional lead screw.

[0011] Preferably, the movable plate is slidably connected inside the adjustment frame.

[0012] Preferably, the bidirectional lead screw passes through the moving block and is threadedly connected to the moving block, and one end of the bidirectional lead screw passes through the extension rod and has a handle fixedly connected to its end face.

[0013] Preferably, the tensioning roller passes through the moving ring and is slidably connected to the moving ring.

[0014] Preferably, a first connecting frame is fixedly connected to the side of the first bracket away from the tension roller, and a first connecting roller is rotatably connected between the first connecting frames.

[0015] Preferably, a fixing plate is fixedly connected between the second brackets, a hydraulic cylinder is fixedly connected to the top of the fixing plate, a connecting plate is fixedly connected to the output end of the hydraulic cylinder, a sliding plate is symmetrically fixedly connected to the top of the connecting plate, and an adjusting roller is rotatably connected between the two sets of sliding plates.

[0016] Preferably, a groove is provided through the interior of the second bracket at a position corresponding to the slide plate, and the interior of the groove is slidably connected to the slide plate.

[0017] Preferably, a second connecting frame is fixedly connected to the side of the second bracket away from the tension roller, and a second connecting roller is rotatably connected between the second connecting frames.

[0018] The present invention provides a tension adjustment device for protective film processing, which has the following advantages: After the protective film is connected, the user can rotate the handle to drive the bidirectional lead screw to rotate, thereby causing the moving ring to slide on the surface of the tension roller until the edge of the protective film is in contact with the inner side of the moving ring. This allows the edge of the protective film to be engaged between the roller and the tension roller, thus limiting the position of the protective film and preventing it from shifting during transportation. Furthermore, it ensures that the edge of the cutting die is parallel to the edge of the protective film, resulting in a regular shape for the waste material. This facilitates the use of the waste material for parts of other sizes, thereby maximizing the utilization of the protective film. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall outer surface structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the overall bottom structure of this utility model;

[0021] Figure 3This is a cross-sectional view of the overall structure of this utility model.

[0022] In the diagram: 1. Main support plate; 2. First bracket; 3. First fixed roller; 4. First connecting frame; 5. First connecting roller; 6. Second bracket; 7. Second fixed roller; 8. Slide groove; 9. Slide plate; 10. Connecting plate; 11. Adjusting roller; 12. Hydraulic cylinder; 13. Fixed plate; 14. Adjusting frame; 15. Tensioning spring; 16. Moving plate; 17. Tensioning roller; 18. Extension rod; 19. Limiting plate; 20. Bidirectional lead screw; 21. Moving block; 22. Moving ring; 23. Roller; 24. Handle; 25. Second connecting frame; 26. Second connecting roller. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0024] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to 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.

[0025] Referring to Figures 1-3, a tension adjustment device for protective film processing includes a main support plate 1. First brackets 2 are symmetrically fixedly connected to the top of the main support plate 1. First fixed rollers 3 are rotatably connected to the tops of two sets of first brackets 2. Second brackets 6 are symmetrically fixedly connected to the top of the main support plate 1 at the end away from the first brackets 2. Second fixed rollers 7 are rotatably connected to the inner wall between the two sets of second brackets 6. A first connecting frame 4 is fixedly connected to the side of the first bracket 2 away from the tension roller 17. First connecting rollers 5 are rotatably connected between the first connecting frames 4. The second brackets... A fixed plate 13 is fixedly connected between the frames 6. A hydraulic cylinder 12 is fixedly connected to the top of the fixed plate 13. A connecting plate 10 is fixedly connected to the output end of the hydraulic cylinder 12. A sliding plate 9 is symmetrically fixedly connected to the top of the connecting plate 10. An adjusting roller 11 is rotatably connected between the two sets of sliding plates 9. A sliding groove 8 is opened through the interior of the second bracket 6 at the position corresponding to the sliding plate 9. The interior of the sliding groove 8 is slidably connected to the sliding plate 9. A second connecting frame 25 is fixedly connected to the side of the second bracket 6 away from the tension roller 17. A second connecting roller 26 is rotatably connected between the second connecting frames 25.

[0026] Two sets of adjusting frames 14 are provided between the first support 2 and the second support 6. The bottom of the adjusting frame 14 is fixedly connected to the top of the main support plate 1. A tension spring 15 is fixedly connected to the bottom of the adjusting frame 14. A moving plate 16 is fixedly connected to the top of the tension spring 15. A tension roller 17 is rotatably connected between the moving plates 16. An extension rod 18 is fixedly connected to the top of the two sets of moving plates 16. A bidirectional lead screw 20 is rotatably connected to the inner wall between the extension rods 18. A limit plate 19 is fixedly connected to the top of the extension rod 18. A moving block 21 is slidably connected inside the limit plate 19. A moving ring 22 is fixedly connected to the bottom of the moving block 21. The side of the moving ring 22 away from the bidirectional lead screw 20 Rollers 23 are rotatably connected to the outer surface. The movable plate 16 is slidably connected inside the adjusting frame 14. The bidirectional screw 20 passes through the movable block 21 and is threadedly connected to the movable block 21. One end of the bidirectional screw 20 passes through the extension rod 18 and is fixedly connected to the end face with a handle 24. The tension roller 17 passes through the movable ring 22 and is slidably connected to the movable ring 22. When the protective film is being transported, when the tension on the surface of the protective film is large, it will drive the tension roller 17 to move upward, thereby driving the tension spring 15 to stretch. When the tension on the surface of the protective film is small, it will cause the tension spring 15 to retract, thereby driving the tension roller 17 to move downward, thereby achieving the purpose of dynamic adjustment of the tension of the protective film.

[0027] In summary: During the application of this invention, when processing the protective film, the protective film is first pulled out and passed under the first connecting roller 5, then over the first fixed roller 3. Next, the user pulls the protective film under the tension roller 17, then pulls it between the second fixed roller 7 and the adjusting roller 11, and then pulls it under the second connecting roller 26. Finally, the protective film is connected to the cutting device. After connection, the user can rotate the handle 24 to rotate the bidirectional lead screw 20, which in turn drives the moving... The movable block 21 slides, and the movable block 21 drives the movable ring 22 to slide on the surface of the tension roller 17 until the edge of the protective film is in contact with the inner side of the movable ring 22, so that the edge of the protective film is engaged between the roller 23 and the tension roller 17, thereby limiting the protective film between the movable rings 22, so that the protective film will not shift during transportation, and further makes the edge of the cutting die parallel to the edge of the protective film, so that the waste of the protective film has a regular shape, which makes it convenient for the waste to be used for parts of other sizes, thereby maximizing the utilization of the protective film;

[0028] After the protective film passes between the second fixed roller 7 and the adjusting roller 11, the user activates the hydraulic cylinder 12 to move the connecting plate 10 upward, which in turn moves the adjusting roller 11 upward, so that the adjusting roller 11 and the second fixed roller 7 clamp the protective film. The outer surfaces of the adjusting roller 11 and the second fixed roller 7 are wrapped with antistatic polyester needle-punched felt to perform preliminary dust removal on both sides of the protective film.

[0029] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A tension adjustment device for protective film processing, comprising a main support plate (1), wherein first brackets (2) are symmetrically fixedly connected to the top of the main support plate (1), and first fixed rollers (3) are rotatably connected to the tops of two sets of first brackets (2), and second brackets (6) are symmetrically fixedly connected to the top of the end of the main support plate (1) away from the first brackets (2), and second fixed rollers (7) are rotatably connected to the inner wall between the two sets of second brackets (6), characterized in that, Two sets of adjustment frames (14) are provided between the first bracket (2) and the second bracket (6), and the bottom of the adjustment frame (14) is fixedly connected to the top of the main support plate (1); The bottom of the adjustment frame (14) is fixedly connected to a tension spring (15), the top of the tension spring (15) is fixedly connected to a moving plate (16), and a tension roller (17) is rotatably connected between the moving plates (16). An extension rod (18) is fixedly connected to the top of the two sets of movable plates (16), and a two-way lead screw (20) is rotatably connected to the inner wall between the extension rods (18); The top of the extension rod (18) is fixedly connected to a limiting plate (19), and a moving block (21) is slidably connected inside the limiting plate (19). A moving ring (22) is fixedly connected to the bottom of the moving block (21), and a roller (23) is rotatably connected to the outer surface of the moving ring (22) away from the bidirectional lead screw (20).

2. The tension adjusting device for a protective film according to claim 1, wherein The movable plate (16) is slidably connected inside the adjustment frame (14).

3. The tension adjusting device for a protective film according to claim 1, wherein The bidirectional lead screw (20) passes through the moving block (21) and is threadedly connected to the moving block (21). One end of the bidirectional lead screw (20) passes through the extension rod (18) and a handle (24) is fixedly connected to the end face.

4. The tension adjusting device for a protective film according to claim 1, wherein The tensioning roller (17) passes through the moving ring (22) and is slidably connected to the moving ring (22).

5. The tension adjusting device for a protective film according to claim 1, wherein The first bracket (2) is fixedly connected to the side away from the tension roller (17) with a first connecting frame (4), and the first connecting frames (4) are rotatably connected to each other with a first connecting roller (5).

6. The tension adjusting device for a protective film according to claim 1, wherein A fixing plate (13) is fixedly connected between the second brackets (6). A hydraulic cylinder (12) is fixedly connected to the top of the fixing plate (13). A connecting plate (10) is fixedly connected to the output end of the hydraulic cylinder (12). A sliding plate (9) is symmetrically fixedly connected to the top of the connecting plate (10). An adjusting roller (11) is rotatably connected between the two sets of sliding plates (9).

7. The device according to claim 1, wherein The second bracket (6) has a through groove (8) at the position corresponding to the slide plate (9), and the inside of the groove (8) is slidably connected to the slide plate (9).

8. The device for adjusting the tension of a protective film according to claim 1, wherein The second bracket (6) is fixedly connected to a second connecting frame (25) on the side away from the tension roller (17), and a second connecting roller (26) is rotatably connected between the second connecting frames (25).

Images