Tensile strength detection device for PI film production

Abstract

The utility model relates to the technical field of PI (Polyimide) film detection devices, and discloses a tensile strength detection device for PI film production, which comprises a base, a clamping table is fixedly mounted at the top of the base, a moving block is arranged at the top of the clamping table, clamping mechanisms are respectively arranged at the tops and the bottoms of the clamping table and the moving block, and the clamping mechanisms are arranged on the base. Based on the clamping table, the clamping mechanism comprises a first clamping block fixedly installed on the top of the clamping table, and a fixing block is fixedly installed on the outer wall of the clamping table. By rotating the lead screw, the lead screw is in threaded connection with the two sliding blocks, so that the two sliding blocks are driven to move in the horizontal direction, the two sliding blocks drive the two connecting rods to move, the two connecting rods drive the second clamping block to move close to or away from the first clamping block together, and therefore the purpose of clamping the PI film is achieved. And by adjusting the rotation amount of the lead screw, the device can adapt to PI films with different thicknesses and sizes, and has high universality and adaptability.

Description

Technical Field

[0001] The utility model relates to the technical field of PI film detection devices, and more specifically, to a tensile strength detection device for PI film production. Background Art

[0002] Polyimide film is the best film insulation material in the world. It is formed by polycondensation of pyromellitic dianhydride (PMDA) and diaminodiphenyl ether (ODA) in a strongly polar solvent, followed by casting into a film and then imidization. It has been widely used in fields such as aviation, aerospace, electrical / electronic, microelectronics, nanotechnology, liquid crystal, separation membranes, lasers, locomotives, automobiles, precision machinery, and office automation machinery. Recently, countries have included the research, development, and utilization of polyimide in one of the most promising engineering plastics in the 21st century. Due to its outstanding characteristics in performance and synthesis, whether as a structural material or a functional material, the huge application prospects of PI film have been fully recognized. Before using and producing PI film, for safety reasons, some safety tests need to be carried out to make people feel at ease to use. The general detection method is to put the film to be detected into a tensile detection device to detect its tensile strength. Due to the special structure of the film, it takes a lot of time for general devices to clamp and fix it, and inaccurate detection results may occur due to insecure clamping. Therefore, it needs to be improved and optimized. Summary of the Invention

[0003] In order to overcome the deficiencies of the prior art, the utility model provides a tensile strength detection device for PI film production, which has the advantages of stable clamping and accurate detection results.

[0004] To achieve the above object, the utility model provides the following technical solution: A tensile strength detection device for PI film production, including a base, a clamping table is fixedly installed on the top of the base, a moving block is arranged on the top of the clamping table, clamping mechanisms are respectively arranged on the top and bottom of the clamping table and the moving block. Based on the clamping table, the clamping mechanism includes a clamping block one fixedly installed on the top of the clamping table, a fixed block is fixedly installed on the outer wall of the clamping table, a lead screw is rotatably installed on the side of the fixed block close to each other, the front of the lead screw extends outside the fixed block, two sliding blocks are threadedly sleeved on the outer wall of the lead screw, connecting rods are respectively hinged on the left outer walls of the two sliding blocks, the left sides of the two connecting rods are both hinged with a clamping block two, the clamping block two is slidably connected with the clamping table, a T-shaped groove is arranged on the left side of the fixed block, and the T-shaped groove is adapted to the right sides of the two sliding blocks.

[0005] As a preferred technical solution of the present utility model, a sliding frame is fixedly installed on the top of the base. A threaded rod is rotatably installed on the inner wall of the sliding frame. The threaded rod penetrates through the moving block and is threadedly connected to the moving block. An inclined gear two is fixedly sleeved on the outer wall of the threaded rod. An installation groove is opened on the left side of the clamping table. A motor one is fixedly installed on the right inner wall of the installation groove. A grooved rectangular block is fixedly installed on the top of the clamping table. The output shaft of the motor one penetrates through the grooved rectangular block and is rotatably connected to the grooved rectangular block. An inclined gear one is fixedly installed on the output shaft of the motor one. The inclined gear one meshes with the inclined gear two.

[0006] As a preferred technical solution of the present utility model, tooth grooves are respectively opened on the sides of the clamping block one and the clamping block two that are close to each other. An L-shaped groove is opened on the front of the clamping block two.

[0007] As a preferred technical solution of the present utility model, a trapezoidal groove is opened on the top of the clamping table. A trapezoidal block is fixedly installed on the top of the clamping block two. The trapezoidal block is adapted to the trapezoidal groove and is slidably connected thereto.

[0008] As a preferred technical solution of the present utility model, a grip is fixedly sleeved on the outer wall of the lead screw. The outer surface of the grip is processed with rounded corners.

[0009] As a preferred technical solution of the present utility model, a limiting slide bar is fixedly installed on the inner wall of the sliding frame. The limiting slide bar penetrates through the moving block and is slidably connected to the moving block.

[0010] As a preferred technical solution of the present utility model, the two clamping mechanisms are designed to be symmetrically distributed up and down.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0012] 1. By rotating the lead screw in the present utility model, the lead screw is threadedly connected to the two sliding blocks, thereby driving the two sliding blocks to move horizontally between them. The two sliding blocks drive the two connecting rods to move. The two connecting rods together drive the clamping block two to move closer to or away from the clamping block one, so as to achieve the purpose of clamping the PI film. Compared with the traditional device, by adjusting the rotation amount of the lead screw, the device can adapt to PI films of different thicknesses and sizes, has strong versatility and adaptability, and tooth grooves are provided on the surface of the clamping block two, so that during the clamping process, the tooth grooves can increase the friction between the clamping block two and the PI film, thereby enhancing the clamping stability, helping to prevent the PI film from sliding or falling off during the test, ensuring the accuracy and reliability of the test. The existence of the tooth grooves also enables the clamping block two to adapt to PI films with different surface textures. For PI films with relatively smooth or rough surfaces, the tooth grooves can provide sufficient clamping force to ensure the stability of the PI film during the test.

[0013] 2. The utility model starts the first motor, and the output shaft of the first motor rotates to drive the first helical gear to rotate. The first helical gear meshes with the second helical gear, thereby driving the second helical gear to rotate. The second helical gear drives the threaded rod to rotate. The threaded rod is threadedly connected to the moving block, thereby driving the moving block to move vertically up and down. This movement mode enables the moving block to accurately adjust its position, thereby realizing the tensile strength detection of the PI film. By combining the precise control of the motor and the stability of the threaded transmission, the entire detection process is both accurate and reliable. At the same time, due to the high transmission efficiency of the helical gear transmission, it can ensure that the power output by the motor is effectively converted into the movement of the moving block, further improving the detection efficiency. Description of the Drawings

[0014] Figure 1 is a schematic structural diagram of the utility model;

[0015] Figure 2 is a schematic structural diagram of the threaded rod of the utility model;

[0016] Figure 3 is a schematic structural diagram of the sliding frame of the utility model;

[0017] Figure 4 is a schematic structural diagram of the fixed block of the utility model;

[0018] Figure 5 is a schematic structural diagram of the trapezoidal groove of the utility model;

[0019] Figure 6 is a schematic structural diagram of the L-shaped groove of the utility model;

[0020] Figure 7 is a schematic front sectional view of the fixed block of the utility model.

[0021] In the figure: 1. Base; 2. Clamping table; 3. Moving block; 4. First clamping block; 5. Fixed block; 6. Lead screw; 7. Sliding block; 8. Link; 9. Second clamping block; 10. Tooth groove; 11. L-shaped groove; 12. Trapezoidal block; 13. Trapezoidal groove; 14. Handle; 15. T-shaped groove; 16. Sliding frame; 17. Threaded rod; 18. Limit slide bar; 19. Installation groove; 20. First motor; 21. Rectangular block with groove; 22. First helical gear; 23. Second helical gear. Detailed Embodiment

[0022] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0023] As Figures 1 to 7 shown, the present utility model provides a tensile strength detection device for PI film production, including a base 1. A clamping table 2 is fixedly installed on the top of the base 1. A moving block 3 is arranged on the top of the clamping table 2. Clamping mechanisms are respectively arranged on the top and bottom of the clamping table 2 and the moving block 3. Based on the clamping table 2, the clamping mechanism includes a clamping block one 4 fixedly installed on the top of the clamping table 2. A fixed block 5 is fixedly installed on the outer wall of the clamping table 2. Based on the moving block 3, a fixed block 5 is fixedly installed on the bottom of the moving block 3. A lead screw 6 is rotatably installed on the side of the fixed blocks 5 close to each other. The front of the lead screw 6 extends outside the fixed block 5. Two sliding blocks 7 are sleeved on the outer wall of the lead screw 6 in a threaded manner. Link rods 8 are respectively hingedly installed on the left outer walls of the two sliding blocks 7. The left sides of the two link rods 8 are both hingedly installed with clamping blocks two 9. The clamping blocks two 9 are slidably connected to the clamping table 2. A T-shaped groove 15 is arranged on the left side of the fixed block 5. The T-shaped groove 15 is adapted to the right sides of the two sliding blocks 7.

[0024] By rotating the lead screw 6, the lead screw 6 is threadedly connected to the two sliding blocks 7, thereby driving the two sliding blocks 7 to move horizontally between them. The two sliding blocks 7 drive the two link rods 8 to move. The two link rods 8 together drive the clamping blocks two 9 to move closer to or away from the clamping block one 4, so as to achieve the purpose of clamping the PI film. Compared with the traditional device, by adjusting the rotation amount of the lead screw, the device can adapt to PI films of different thicknesses and sizes, and has strong versatility and adaptability. And a tooth groove 10 is arranged on the surface of the clamping block two 9, so that during the clamping process, the tooth groove 10 can increase the friction force between the clamping block two 9 and the PI film, thereby enhancing the clamping stability, helping to prevent the PI film from sliding or falling off during the test, ensuring the accuracy and reliability of the test. The existence of the tooth groove 10 also enables the clamping block two 9 to adapt to PI films with different surface textures. For PI films with relatively smooth or rough surfaces, the tooth groove 10 can provide sufficient clamping force to ensure that the PI film remains stable during the test.

[0025] First, the operator passes one end of the PI film to be tested through the L-shaped groove 11 between the first clamping block 4 and the second clamping block 9 in sequence, ensuring that the PI film forms a certain pre-bending or pre-folding when passing through the L-shaped groove 11 for tighter subsequent clamping. Manually hold the grip 14 and rotate it, driving the screw rod 6 to rotate. Through the threaded connection between the screw rod 6 and the sliding block 7, the horizontal movement of the sliding block 7 is driven. The movement of the sliding block 7 drives the connecting rod 8 to move, and then drives the second clamping block 9 to move towards the first clamping block 4 until the first clamping block 4 and the second clamping block 9 tightly clamp the PI film. Then, start the rotation of the first motor 20. Through the meshing of the first bevel gear 22 and the second bevel gear 23, the threaded rod 17 is driven to rotate, and then the moving block 3 is driven to move up and down in the vertical direction. The movement of the moving block 3 drives the clamping mechanism including the first clamping block 4 and the second clamping block 9 to move up and down, thereby applying an appropriate tensile force to the PI film and recording relevant data.

[0026] After completing the tensile strength test, release the clamping of the first clamping block 4 and the second clamping block 9 on the PI film by rotating the screw rod 6 in the reverse direction or operating the first motor 20, take out the tested PI film, and prepare for the next test.

[0027] Among them, a sliding frame 16 is fixedly installed on the top of the base 1. A threaded rod 17 is rotatably installed on the inner wall of the sliding frame 16. The threaded rod 17 passes through the moving block 3 and is threadedly connected to the moving block 3. A second bevel gear 23 is fixedly sleeved on the outer wall of the threaded rod 17. An installation groove 19 is opened on the left side of the clamping table 2. A first motor 20 is fixedly installed on the right inner wall of the installation groove 19. A grooved rectangular block 21 is fixedly installed on the top of the clamping table 2. The output shaft of the first motor 20 passes through the grooved rectangular block 21 and is rotatably connected to the grooved rectangular block 21. A first bevel gear 22 is fixedly installed on the output shaft of the first motor 20. The first bevel gear 22 meshes with the second bevel gear 23.

[0028] By starting the first motor 20, the rotation of the output shaft of the first motor 20 drives the first bevel gear 22 to rotate. The first bevel gear 22 meshes with the second bevel gear 23, thereby driving the second bevel gear 23 to rotate. The second bevel gear 23 drives the threaded rod 17 to rotate. The threaded rod 17 is threadedly connected to the moving block 3, thereby driving the moving block 3 to move up and down in the vertical direction. This movement mode enables the moving block 3 to accurately adjust its position, thereby realizing the tensile strength test of the PI film. By combining the precise control of the motor and the stability of the threaded transmission, the entire detection process is both precise and reliable. At the same time, due to the high transmission efficiency of the bevel gear transmission, it can ensure that the power output by the motor is effectively converted into the movement of the moving block 3, further improving the detection efficiency.

[0029] Among them, tooth grooves 10 are respectively opened on the sides of the first clamping block 4 and the second clamping block 9 that are close to each other. An L-shaped groove 11 is opened on the front surface of the second clamping block 9.

[0030] Among them, a trapezoidal groove 13 is formed at the top of the clamping table 2, and a trapezoidal block 12 is fixedly installed at the top of the second clamping block 9. The trapezoidal block 12 is adapted to the trapezoidal groove 13 and is slidably connected thereto.

[0031] Through the design of the L-shaped groove 11, before the PI film enters the clamping area, it first undergoes a pre-bending or pre-folding process. When the PI film passes through the L-shaped groove 11, its shape will naturally conform to the shape of the groove, forming a certain bending or folding. This shape change helps the PI film to fit more closely between the first clamping block 4 and the second clamping block 9 during the subsequent clamping process, which not only helps the clamping block to clamp the PI film more tightly, but also improves the stability and reliability of clamping.

[0032] Among them, a handle 14 is fixedly sleeved on the outer wall of the lead screw 6, and the outer surface of the handle 14 is processed with rounded corners.

[0033] The handle 14 provides a convenient holding point for the operator. The operator can apply force more easily, thereby improving the rotation efficiency of the lead screw 6, enabling the second clamping block 9 to quickly and accurately move to the required position.

[0034] Among them, a limiting slide bar 18 is fixedly installed on the inner wall of the sliding frame 16. The limiting slide bar 18 passes through the moving block 3 and is slidably connected to the moving block 3.

[0035] The limiting slide bar 18 provides stable guidance for the movement of the moving block 3 in the sliding frame 16, ensuring that the moving block 3 can move smoothly and stably in the vertical direction, and avoiding the deviation or shaking of the moving block 3 during the movement.

[0036] Among them, the two groups of clamping mechanisms are designed to be symmetrically distributed up and down.

[0037] Through the symmetrical distribution of the two groups of clamping mechanisms up and down, a balanced clamping force can be provided in the vertical direction, which helps to ensure a uniform stress distribution on the PI film during the test, so as to obtain more accurate tensile strength test results.

[0038] The working principle and usage process of the present utility model:

[0039] First, the operator passes one end of the PI film to be tested through the L-shaped groove 11 between the first clamping block 4 and the second clamping block 9 in sequence, ensuring that the PI film forms a certain pre-bending or pre-folding when passing through the L-shaped groove 11 for tighter subsequent clamping. Then, manually hold the handle 14 and rotate it, driving the screw rod 6 to rotate. Through the threaded connection between the screw rod 6 and the sliding block 7, the horizontal movement of the sliding block 7 is driven. The movement of the sliding block 7 drives the connecting rod 8 to move, and further drives the second clamping block 9 to move towards the first clamping block 4 until the first clamping block 4 and the second clamping block 9 tightly clamp the PI film. Then, start the rotation of the first motor 20. Through the meshing of the first bevel gear 22 and the second bevel gear 23, the threaded rod 17 is driven to rotate, and then the moving block 3 is driven to move up and down in the vertical direction. The movement of the moving block 3 drives the clamping mechanism including the first clamping block 4 and the second clamping block 9 to move up and down, thereby applying an appropriate tensile force to the PI film and recording relevant data.

[0040] After completing the tensile strength test, release the clamping of the first clamping block 4 and the second clamping block 9 on the PI film by rotating the screw rod 6 in the reverse direction or operating the first motor 20, and take out the tested PI film to prepare for the next test.

[0041] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device.

[0042] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A tensile strength testing device for PI film production, comprising a base (1), characterized in that: A clamping platform (2) is fixedly mounted on the top of the base (1), a moving block (3) is arranged on the top of the clamping platform (2), and clamping mechanisms are arranged on the top and bottom of the clamping platform (2) and the moving block (3), respectively. The clamping mechanism comprises a clamping block (4) fixedly mounted on the top of the clamping platform (2) based on the clamping platform (2), a fixed block (5) is fixedly mounted on the outer wall of the clamping platform (2), and a screw rod (6) is rotatably mounted on one side of the fixed block (5) close to each other. The front side of the screw rod (6) extends outside the fixed block (5); two sliding blocks (7) are threadedly sleeved on the outer wall of the screw rod (6); connecting rods (8) are respectively hingedly mounted on the left outer walls of the two sliding blocks (7); clamping blocks (9) are hingedly mounted on the left sides of the two connecting rods (8); the clamping blocks (9) are slidably connected to the clamping platform (2); a T-slot (15) is arranged on the left side of the fixed block (5); the T-slot (15) is adapted to the right sides of the two sliding blocks (7).

2. A tensile strength detection device for PI film production according to claim 1, characterized in that: A sliding frame (16) is fixedly mounted on the top of the base (1), a threaded rod (17) is rotatably mounted on the inner wall of the sliding frame (16), the threaded rod (17) passes through the moving block (3) and is threadedly connected to the moving block (3), a bevel gear 2 (23) is fixedly sleeved on the outer wall of the threaded rod (17), a mounting groove (19) is opened on the left side of the clamping platform (2), a motor 1 (20) is fixedly mounted on the right inner wall of the mounting groove (19), a rectangular block (21) with a groove is fixedly mounted on the top of the clamping platform (2), an output shaft of the motor 1 (20) passes through the rectangular block (21) with the groove and is rotatably connected to the rectangular block (21), a bevel gear 1 (22) is fixedly mounted on the output shaft of the motor 1 (20), and the bevel gear 1 (22) is meshed with the bevel gear 2 (23).

3. The tensile strength detection device for PI film production according to claim 1, characterized in that: The clamping block 1 (4) and the clamping block 2 (9) are respectively provided with tooth grooves (10) on the sides close to each other, and the front side of the clamping block 2 (9) is provided with an L-shaped groove (11).

4. The tensile strength detection device for PI film production according to claim 1, characterized in that: The top of the clamping platform (2) is provided with a trapezoidal groove (13), and the top of the second clamping block (9) is fixedly mounted with a trapezoidal block (12), the trapezoidal block (12) being adapted to the trapezoidal groove (13) and slidably connected thereto.

5. The tensile strength detection device for PI film production according to claim 1, characterized in that: A handle (14) is fixedly sleeved on the outer wall of the screw rod (6), and the outer surface of the handle (14) is rounded.

6. The tensile strength detection device for PI film production according to claim 2, characterized in that: A limiting slide bar (18) is fixedly mounted on the inner wall of the sliding frame (16), and the limiting slide bar (18) passes through the moving block (3) and is slidably connected to the moving block (3).

7. The tensile strength detection device for PI film production according to claim 1, characterized in that: The two groups of clamping mechanisms are designed to be symmetrically distributed up and down.

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