A protective film tension adjusting mechanism

Abstract

The utility model discloses a kind of protective film tension adjusting mechanism, it includes ground platform, convex shaft is rotatably connected between the first support, guiding roller is fixedly connected in the convex shaft middle, first rotating shaft is rotatably connected between the second support, second limiting roller is fixedly connected in the first rotating shaft middle, limiting hole is arranged below the second support, third rotating shaft is arranged between the limiting hole, first limiting roller is fixedly connected in the third rotating shaft middle, second rotating shaft is rotatably connected between the third support, conveying roller is fixedly connected in the second rotating shaft middle, screw rod is installed between the first mounting plate and second mounting plate. Through the above structure, mechanism drives screw rod transmission by first motor, drives moving block and first limiting roller to move stably up and down along limiting hole, can accurately control the size of protective film tension, can be rotated by motor driving convex shaft to adjust the position of guiding roller, so that it adapts different protective film production scene.

Description

Technical Field

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

[0002] To meet the widespread application needs of protective films in electronics, automotive, food packaging and other fields, tension control during the production process (such as coating, rewinding and cutting) is crucial. If the tension is too high, the protective film will be easily stretched and deformed or damaged. If the tension is too low, wrinkles on the film surface and conveying deviation will easily occur, which will directly affect the dimensional accuracy and appearance quality of the product.

[0003] However, traditional manual adjustment methods are difficult to control the tension value precisely, and human error can easily lead to uneven tension in the same batch of products; moreover, it is difficult to adjust the tension in real time according to the changes in the thickness of the protective film material, resulting in poor adaptability and affecting the continuity of production. Utility Model Content

[0004] The purpose of this invention is to solve at least one of the technical problems existing in the prior art, and to provide a protective film tension adjustment mechanism that can accurately control the tension of the protective film and can be adapted to different protective film production scenarios to improve production efficiency.

[0005] This utility model also provides a protective film tension adjustment mechanism as described above, including a platform, a pair of first supports fixedly connected above the platform, a pair of second supports fixedly connected above the platform, and a pair of third supports fixedly connected above the platform. A convex shaft is rotatably connected between the first supports, and a guide roller is fixedly connected in the middle of the convex shaft. A first rotating shaft is rotatably connected between the second supports, and a second limiting roller is fixedly connected in the middle of the first rotating shaft. Limiting holes are provided below the second supports, and a third rotating shaft is provided between the limiting holes. A first limiting roller is fixedly connected in the middle of the third rotating shaft. A second rotating shaft is rotatably connected between the third supports, and a conveying roller is fixedly connected in the middle of the second rotating shaft. A first mounting plate is installed above one side of the second supports, and a second mounting plate is installed above and below one side of the second supports. A lead screw is installed between the first mounting plate and the second mounting plate.

[0006] According to the protective film tension adjustment mechanism of this utility model, a second motor is installed on one side of the first bracket, and the output shaft of the second motor is fixedly connected to a convex shaft.

[0007] According to the protective film tension adjustment mechanism of this utility model, a third motor is installed on one side of the second bracket, and the output shaft of the third motor is fixedly connected to the first rotating shaft.

[0008] According to the protective film tension adjustment mechanism of this utility model, a fourth motor is installed on one side of the third bracket, and the output shaft of the fourth motor is fixedly connected to the second rotating shaft.

[0009] According to the protective film tension adjustment mechanism of this utility model, a movable block is threadedly connected to the middle of the lead screw, and one side of the movable block is fixedly connected to a third rotating shaft.

[0010] According to the protective film tension adjustment mechanism of this utility model, a first motor is installed above the first mounting plate, and one side of the output shaft of the first motor is fixedly connected to a lead screw.

[0011] According to the protective film tension adjustment mechanism of this utility model, a bearing is installed below the second mounting plate, and the lower end of the lead screw is rotatably connected to the bearing.

[0012] Beneficial effects:

[0013] 1. The mechanism is driven by a first motor and a lead screw, which drives the moving block and the first limiting roller to move smoothly up and down along the limiting hole. It can accurately change the relative distance between the first limiting roller and the second limiting roller, thereby precisely controlling the tension of the protective film.

[0014] 2. It is equipped with a convex shaft to drive the guide roller to rotate. The position of the guide roller can be adjusted by driving the convex shaft to rotate through a motor, so as to adapt to different protective film production scenarios and improve production efficiency. Attached Figure Description

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0016] Figure 1 This is a perspective view of a protective film tension adjustment mechanism according to the present invention;

[0017] Figure 2 This is a side view of a protective film tension adjustment mechanism according to the present invention;

[0018] Figure 3 This is a top view of a protective film tension adjustment mechanism according to the present invention;

[0019] Figure 4 This is a diagram showing the lifting structure of the first limiting roller of a protective film tension adjustment mechanism according to this utility model.

[0020] Legend:

[0021] 1. Platform; 2. Guide roller; 3. First limiting roller; 4. Second limiting roller; 5. Conveying roller; 6. First bracket; 7. Second bracket; 8. Third bracket; 9. Limiting hole; 10. First mounting plate; 11. Second mounting plate; 12. Convex shaft; 13. First rotating shaft; 14. Second rotating shaft; 15. First motor; 16. Moving block; 17. Lead screw; 18. Second motor; 19. Third motor; 20. Fourth motor; 21. Third rotating shaft; 22. Bearing. Detailed Implementation

[0022] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0023] Reference Figure 1-4 This utility model discloses a protective film tension adjustment mechanism, which includes a base 1, a pair of first supports 6 fixedly connected above the base 1, a pair of second supports 7 fixedly connected above the base 1, and a pair of third supports 8 fixedly connected above the base 1. A convex shaft 12 is rotatably connected between the first supports 6, and a guide roller 2 is fixedly connected in the middle of the convex shaft 12. A first rotating shaft 13 is rotatably connected between the second supports 7, and a second limiting roller 4 is fixedly connected in the middle of the first rotating shaft 13. A limiting hole 9 is provided below the second supports 7, and a third rotating shaft 21 is provided between the limiting holes 9. A first limiting roller 3 is fixedly connected in the middle of the third rotating shaft 21. A second rotating shaft 14 is rotatably connected between the third supports 8, and a conveying roller 5 is fixedly connected in the middle of the second rotating shaft 14. A first mounting plate 10 is installed above one side of the second supports 7, and a second mounting plate 11 is installed above and below one side of the second supports 7. A lead screw 17 is installed between the first mounting plate 10 and the second mounting plate 11.

[0024] Specifically, the convex shaft 12 is used to drive the guide roller 2 to rotate synchronously, the guide roller 2 is used to guide the direction of the protective film, the first rotating shaft 13 is used to drive the second limiting roller 4 to rotate, the second limiting roller 4 is used to assist in the transmission of the protective film by its own rotation, the limiting hole 9 is used to provide a channel for the third rotating shaft 21 to move up and down, the third rotating shaft 21 is used to drive the lower edge limiting hole 9 to move up and down, the first limiting roller 3 is used to adjust the tension of the protective film by changing its relative position with the second limiting roller 4, the second rotating shaft 14 is used to drive the conveying roller 5 to rotate, the conveying roller 5 is used to convey the tension-adjusted protective film forward, and the lead screw 17 is used to drive the moving block 16 to move up and down through the screw drive.

[0025] A second motor 18 is installed on one side of the first bracket 6, and the output shaft of the second motor 18 is fixedly connected to the convex shaft 12.

[0026] Specifically, the second motor 18 is used to provide power for the rotation of the convex shaft 12 and the guide roller 2, driving the protective film into the mechanism.

[0027] A third motor 19 is installed on one side of the second bracket 7, and the output shaft of the third motor 19 is fixedly connected to the first rotating shaft 13.

[0028] Specifically, the third motor 19 is used to provide power for the rotation of the first rotating shaft 13 and the second limiting roller 4, and to assist in the conveying of the protective film in the tension adjustment section.

[0029] A fourth motor 20 is installed on one side of the third bracket 8, and the output shaft of the fourth motor 20 is fixedly connected to the second rotating shaft 14.

[0030] Specifically, the fourth motor 20 is used to provide power for the rotation of the second rotating shaft 14 and the conveying roller 5, driving the output of the adjusted protective film.

[0031] The lead screw 17 is threadedly connected to a moving block 16, and one side of the moving block 16 is fixedly connected to the third rotating shaft 21.

[0032] Specifically, the movable block 16 is used to move up and down along the lead screw 17 when the lead screw 17 rotates, driving the third rotating shaft 21 and the first limiting roller 3 to move synchronously, thereby realizing the force transmission for tension adjustment.

[0033] A first motor 15 is mounted on the top of the first mounting plate 10, and one side of the output shaft of the first motor 15 is fixedly connected to the lead screw 17.

[0034] Specifically, the first motor 15 provides power for the rotation of the lead screw 17 and is the power source for driving the position adjustment of the first limit roller 3.

[0035] A bearing 22 is installed below the second mounting plate 11, and the lower end of the lead screw 17 is rotatably connected to the bearing 22.

[0036] Specifically, bearing 22 is used to reduce the frictional resistance of lead screw 17 when it rotates, ensuring smooth rotation and improving transmission efficiency and stability.

[0037] Working principle: The platform 1 serves as the foundation to support and fix the brackets. After the protective film is introduced from the upstream process, it is guided to the tension adjustment area by the convex shaft 12 driven by the second motor 18, which drives the guide roller 2. It passes around the movable first limiting roller 3 and the fixed second limiting roller 4 in sequence to form a tensioning path. Then, the second rotating shaft 14 driven by the fourth motor 20 drives the conveying roller 5 to convey it forward. Among them, the tension adjustment is achieved by the first motor 15 driving the lead screw 17 to rotate. The lead screw 17 is threaded with the moving block 16, which drives the third rotating shaft 21 and the first limiting roller 3 to move up and down along the limiting hole 9 of the second bracket 7, changing the relative distance with the second limiting roller 4 and changing the tension of the protective film. At the same time, the third motor 19 drives the first rotating shaft 13 to rotate the second limiting roller 4, which helps to smoothly convey the protective film during the tension adjustment process. The bearing 22 reduces the friction of the lead screw rotation and ensures the adjustment accuracy and stability.

[0038] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A protective film tension adjustment mechanism, comprising a base (1), characterized in that: A pair of first supports (6) are fixedly connected above the platform (1), a pair of second supports (7) are fixedly connected above the platform (1), and a pair of third supports (8) are fixedly connected above the platform (1). A convex shaft (12) is rotatably connected between the first supports (6), and a guide roller (2) is fixedly connected in the middle of the convex shaft (12). A first rotating shaft (13) is rotatably connected between the second supports (7), and a second limiting roller (4) is fixedly connected in the middle of the first rotating shaft (13). Limiting holes are provided below the second supports (7). (9) A third rotating shaft (21) is provided between the limiting holes (9). A first limiting roller (3) is fixedly connected in the middle of the third rotating shaft (21). A second rotating shaft (14) is rotatably connected between the third brackets (8). A conveying roller (5) is fixedly connected in the middle of the second rotating shaft (14). A first mounting plate (10) is installed above one side of the second bracket (7). A second mounting plate (11) is installed above and below one side of the second bracket (7). A lead screw (17) is installed between the first mounting plate (10) and the second mounting plate (11).

2. The protective film tension adjustment mechanism according to claim 1, characterized in that, A second motor (18) is installed on one side of the first bracket (6), and the output shaft of the second motor (18) is fixedly connected to the convex shaft (12).

3. The protective film tension adjustment mechanism according to claim 1, characterized in that, A third motor (19) is installed on one side of the second bracket (7), and the output shaft of the third motor (19) is fixedly connected to the first rotating shaft (13).

4. The protective film tension adjustment mechanism according to claim 1, characterized in that, A fourth motor (20) is installed on one side of the third bracket (8), and the output shaft of the fourth motor (20) is fixedly connected to the second rotating shaft (14).

5. The protective film tension adjustment mechanism according to claim 1, characterized in that, The lead screw (17) is threaded with a moving block (16) in the middle, and one side of the moving block (16) is fixedly connected to the third rotating shaft (21).

6. The protective film tension adjustment mechanism according to claim 1, characterized in that, A first motor (15) is mounted on the top of the first mounting plate (10), and the output shaft of the first motor (15) is fixedly connected to the lead screw (17).

7. The protective film tension adjustment mechanism according to claim 1, characterized in that, A bearing (22) is installed below the second mounting plate (11), and the lower end of the lead screw (17) is rotatably connected to the bearing (22).

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