A stretching assembly for polyimide film

Abstract

The utility model belongs to the film detection technical field, concretely relates to a kind of polyimide film's tensile assembly, including base, the upper two ends of the base are respectively provided with clamping mechanism one and clamping mechanism two, the outside of the base is equipped with the outer cover body of bidirectional sliding, for cover clamping mechanism one and clamping mechanism two, the inside of the base is equipped with heating plate, the utility model can be fixed to the two ends of the film being detected by the clamping mechanism one and clamping mechanism two being set, and by the horizontal movement on base by clamping mechanism two, relative movement between clamping mechanism one can be carried out, it is convenient to carry out tensile detection to film, in addition, and, install heating plate on base, film can be in different temperature environment when detecting by the heating mode of heating plate, it is convenient to simulate the tensile state of film under different temperature.

Description

Technical Field

[0001] This invention belongs to the field of thin film testing technology, specifically relating to a stretching assembly for a polyimide film. Background Technology

[0002] After the polyimide film is processed, its strength needs to be tested. The polyimide film sample is fixed to the stretching assembly, and then stretched continuously by the stretching assembly to reflect the tensile strength of the polyimide film and to test the quality of the product.

[0003] For example, Chinese Patent Publication No. CN219870733U discloses a stretching assembly for a polyimide film. This device includes a base, a tension gauge fixedly connected to the upper end of the base, a first clamping block fixedly connected to the output end of the tension gauge, a groove formed at the upper end of the base, a connecting block slidably connected to the inner cavity of the groove, a second clamping block fixedly connected to the upper end of the connecting block, and an internally threaded connecting block fixedly connected to the upper end of the base. This device clamps both ends of the film using the first and second clamping blocks, stretching the film by the continuous movement of the two blocks away from each other.

[0004] As described in the prior art of the aforementioned patent, the ambient temperature used for polyimide films varies, and the aforementioned mechanism can only perform stretching tests on polyimide films at room temperature. Furthermore, by manually controlling the two clamping devices to move away from each other, it is not conducive to performing constant-speed elongation stretching of the film during stretching. Utility Model Content

[0005] The purpose of this invention is to provide a tensile assembly for polyimide films that can generate heat through a heating plate, allowing the test environment of the polyimide film to simulate different temperature conditions, facilitating tensile testing of the polyimide film at different temperatures and improving the comprehensiveness of the test.

[0006] The specific technical solution adopted in this utility model is as follows: A stretching assembly for a polyimide film includes a base, with a clamping mechanism one and a clamping mechanism two respectively disposed at the upper two ends of the base. A bidirectional sliding outer cover is installed on the outer side of the base to cover the clamping mechanism one and the clamping mechanism two. A heating plate is installed on the inner side of the base. The clamping mechanism one includes a base plate one fixedly installed on the base, and a lower clamping plate one and an upper clamping plate one that can move up and down are fixedly installed inside the base plate one. The clamping mechanism two includes a base plate two that is horizontally slidably connected to the base, and a lower clamping plate two and an upper clamping plate two that can move up and down are fixedly installed inside the base plate two.

[0007] In a preferred embodiment, two sets of outer covers are arranged on the left and right sides of the base, and the two sets of outer covers are slidably connected to a slide rod, which is fixedly installed on the base.

[0008] In a preferred embodiment, the clamping mechanism further includes a bracket fixedly connected to the upper end of the base plate, a clamping rod connected to the bracket by a thread, the lower end of the clamping rod being rotatably connected to the upper clamping plate, and guide rods being fixedly connected to both ends of the upper clamping plate, the guide rods being slidably connected to the bracket.

[0009] In a preferred embodiment, the clamping mechanism 2 further includes a bracket 2 fixedly connected to the upper end of the base plate 2. A clamping rod 2 is threadedly connected to the bracket 2. The lower end of the clamping rod 2 is rotatably connected to the upper clamping plate 2. Guide rods 2 are fixedly connected to both ends of the upper clamping plate 2. The guide rods 2 are slidably connected to the bracket 2.

[0010] In a preferred embodiment, a slide rail is fixedly connected to the base, and a slider is slidably mounted on the slide rail. The slider is fixedly connected to the lower end face of the base plate. A horizontally telescopic rod is also connected below the base plate, and the other end of the telescopic rod is fixedly connected to the base. A tension sensor is provided between the base plate and the telescopic rod.

[0011] In a preferred embodiment, a temperature sensor for temperature monitoring and a vision camera for image information acquisition are also installed on the base plate first. A rangefinder second is installed on the side of the base plate first, and a rangefinder first for use with the rangefinder second is installed on the side of the base plate second.

[0012] The technical effects achieved by this utility model are as follows: This utility model uses clamping mechanism one and clamping mechanism two to clamp and fix both ends of the film to be tested. Clamping mechanism two can move relative to clamping mechanism one by moving horizontally on the base, which facilitates the tensile testing of the film. In addition, the movement of clamping mechanism two is driven by the extension and retraction of the telescopic rod, which can ensure the uniform movement of clamping mechanism two and facilitate uniform stretching of the film. Moreover, a heating plate is installed on the base, which can heat the film to place it in different temperature environments during testing, which can facilitate the simulation of the tensile state of the film at different temperatures. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this practical tool; Figure 2 This is a schematic diagram of the structure of this practical device after the outer cover has been removed; Figure 3 This is an enlarged structural diagram of the outer end of the second clamping mechanism of this practical device; Figure 4 This is an enlarged structural diagram of the inner end of the second clamping mechanism of this practical device; Figure 5 This is an enlarged structural schematic diagram of the first practical clamping mechanism.

[0014] The attached diagram lists the components represented by each number as follows: 1. Base; 2. Clamping Mechanism 1; 3. Clamping Mechanism 2; 4. Outer Cover; 5. Rangefinder 1; 6. Rangefinder 2; 7. Heating Plate; 8. Temperature Sensor; 9. Vision Camera; 11. Slide Rail; 12. Slider; 21. Base Plate 1; 22. Lower Clamping Plate 1; 23. Bracket 1; 24. Clamping Rod 1; 25. Upper Clamping Plate 1; 26. Guide Rod 1; 31. Base Plate 2; 32. Lower Clamping Plate 2; 33. Bracket 2; 34. Clamping Rod 2; 35. Upper Clamping Plate 2; 36. Guide Rod 2; 37. Telescopic Rod; 38. Tension Sensor; 41. Slide Rod. Detailed Implementation

[0015] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0016] Many specific details are set forth in the following description in order to provide a full understanding of this utility model. However, this utility model may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0017] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of this utility model. The phrase "in a preferred embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that mutually excludes other embodiments.

[0018] Secondly, this utility model is described in detail with reference to the schematic diagrams. When detailing the embodiments of this utility model, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, actual manufacturing should include the three-dimensional spatial dimensions of length, width, and depth.

[0019] Please see the appendix Figure 1 and Figure 2 As shown, this utility model provides a stretching assembly for a polyimide film, including a base 1. A clamping mechanism 2 and a clamping mechanism 3 are respectively provided at the upper two ends of the base 1. A bidirectional sliding outer cover 4 is installed on the outer side of the base 1 to cover the clamping mechanism 2 and the clamping mechanism 3. A heating plate 7 is installed on the inner side of the base 1. Two sets of outer covers 4 are arranged on the left and right sides of the base 1, and the two sets of outer covers 4 are slidably connected to a slide rod 41. The slide rod 41 is fixedly installed on the base 1. When performing tensile testing on the film, one end of the film sample is clamped and fixed by clamping mechanism 2, and the other end is clamped and fixed by clamping mechanism 3. After clamping, the retraction of telescopic rod 37 drives clamping mechanism 3 to move horizontally on the base 1 and away from clamping mechanism 2, so that the film is stretched. In the film tensile test, the heating plate 7 can be controlled to generate heat to simulate the film being subjected to tensile testing under different temperature environments. The tensile strength of the film under different temperature conditions can be measured, making the test results more comprehensive and the equipment more adaptable. During heating, in order to ensure that the heat emitted by the heating plate 7 can surround the film being tested and diffuse outward more slowly, so that the surrounding environment of the film can reach the required temperature more quickly, such as... Figure 1 As shown, in this device, an outer cover 4 is provided. When the heating plate 7 starts working, the outer cover 4 is pulled so that the two outer covers 4 are closed together, covering the clamping mechanism 1 2 and the clamping mechanism 2 3 as well as the film to be tested, forming a relatively sealed space, reducing the rate of heat loss and saving more energy. In addition, a sliding sleeve is installed on the outer cover 4, which is slidably connected to the sliding rod 41, so that the outer cover 4 can be pushed open or closed by moving horizontally along the base 1.

[0020] Please see Figure 2 and Figure 5 As shown, the clamping mechanism 2 includes a base plate 21 fixedly installed on the base 1. A lower clamping plate 22 and an upper clamping plate 25 that can move up and down are fixedly installed inside the base plate 21. The clamping mechanism 2 also includes a bracket 23 fixedly connected to the upper end of the base plate 21. A clamping rod 24 is threadedly connected to the bracket 23. The lower end of the clamping rod 24 is rotatably connected to the upper clamping plate 25. Guide rods 26 are fixedly connected to both ends of the upper clamping plate 25. The guide rods 26 are slidably connected to the bracket 23. Lay one end of the film flat and place it on the lower clamping plate 22. Then, by rotating the clamping rod 24, the clamping rod 24 extends downward, causing the upper clamping plate 25 to move down and engage with the lower clamping plate 22 to clamp the film, thus completing the clamping of the film. The function of guide rod 26 is to ensure the stability of the upper clamping plate 25 in moving up and down, and to prevent the upper clamping plate 25 from being misaligned with the lower clamping plate 22 due to the rotation of clamping rod 24.

[0021] Please see Figure 3 and Figure 4As shown, the clamping mechanism 2 3 includes a base plate 2 31 that is horizontally slidably connected to the base 1. A lower clamping plate 2 32 and an upper clamping plate 2 35 that can move up and down are fixedly installed inside the base plate 2 31. The clamping mechanism 2 3 also includes a bracket 2 33 that is fixedly connected to the upper end of the base plate 2 31. A clamping rod 2 34 is threadedly connected to the bracket 2 33. The lower end of the clamping rod 2 34 is rotatably connected to the upper clamping plate 2 35. Guide rods 2 36 are fixedly connected to both ends of the upper clamping plate 2 35. The guide rods 2 36 are slidably connected to the bracket 2 33. When clamping the other end of the film, first stretch the film so that it is fully open, then lay the other end of the film flat on the lower clamping plate 32, and then drive the upper clamping plate 35 down by rotating the clamping rod 34 and engage it with the lower clamping plate 32 to clamp the film. Similarly, the function of guide rod 36 is to ensure the stability of the upper clamping plate 35 in its up-and-down movement, and to prevent the upper clamping plate 35 from being misaligned with the lower clamping plate 32 due to the rotation of clamping rod 34.

[0022] To ensure the tightness of the film clamping and prevent it from falling off during stretching, rubber pads are provided on the clamping surfaces of the lower clamping plate 22, the upper clamping plate 25, the lower clamping plate 32, and the upper clamping plate 35. These pads increase friction with the film, prevent it from falling off, and also act as a buffer to prevent the film from breaking.

[0023] A slide rail 11 is fixedly connected to the base 1. A slider 12 is slidably mounted on the slide rail 11. The slider 12 is fixedly connected to the lower end face of the base plate 31. A horizontal telescopic rod 37 is also connected to the lower part of the base plate 31. The other end of the telescopic rod 37 is fixedly connected to the base 1. A tension sensor 38 is provided between the base plate 31 and the telescopic rod 37. The clamping mechanism 2 3 moves horizontally by sliding the slider 12 installed below the base plate 2 31 on the slide rail 11. The clamping mechanism 2 3 moves on the base 1 by extending and retracting the telescopic rod 37. The base plate 2 31 and the telescopic rod 37 are connected by a tension sensor 38. During film stretching detection, the magnitude and change of the tension force on the film being tested are measured by the tension sensor 38 through force transmission.

[0024] The base plate 21 is also equipped with a temperature sensor 8 for temperature monitoring and a vision camera 9 for image information acquisition. The side of the base plate 21 is equipped with a rangefinder 6, and the side of the base plate 31 is equipped with a rangefinder 5 that is used in conjunction with the rangefinder 6. To make the equipment more intelligent, this utility model also includes a vision camera 9 to acquire image information of the changing state of the film during film inspection. Using a temperature sensor 8, the ambient temperature inside the outer casing 4 can be measured when the heating plate 7 is turned on to heat the film, and the ambient temperature of the film can be accurately measured. The rangefinder 5 and the rangefinder 6 are laser rangefinders or radar rangefinders, one is a signal transmitter and the other is a signal receiver. The rangefinder 5 and the rangefinder 6 can measure the change in distance between the clamping mechanism 2 and the clamping mechanism 3 before and after the inspection, thereby determining the change in the strength of the film. This device also includes a control mechanism, which includes a display mechanism, an operation panel, a signal processing unit, etc., to comprehensively analyze the test results, thereby determining the strength of the film and whether the film is qualified (the specific operation methods are all existing technologies, and will not be described in detail here).

[0025] The working principle of this utility model is as follows: When performing tensile testing on a film, one end of the film sample is clamped and fixed by clamping mechanism 2, and the other end is clamped and fixed by clamping mechanism 3. After clamping, the retraction of telescopic rod 37 causes clamping mechanism 3 to move horizontally on the base 1, moving away from clamping mechanism 2, thus stretching the film. In the film tensile test, heating plate 7 can be controlled to simulate the film being subjected to tensile testing under different temperature environments. The tensile strength of the film under different temperature conditions can be measured, making the test results more comprehensive and the equipment more adaptable.

[0026] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model, unless otherwise specified or limited, shall be implemented using conventional methods in the art.

Claims

1. A stretching assembly for a polyimide film, characterized in that: Includes a base (1), with clamping mechanism one (2) and clamping mechanism two (3) respectively provided at the upper two ends of the base (1), and a bidirectional sliding outer cover (4) installed on the outer side of the base (1) to cover clamping mechanism one (2) and clamping mechanism two (3), and a heating plate (7) installed on the inner side of the base (1). The clamping mechanism 1 (2) includes a base plate seat 1 (21) fixedly installed on the base (1), and a lower clamping plate 1 (22) and an upper clamping plate 1 (25) that can move up and down are fixedly installed in the base plate seat 1 (21). The clamping mechanism 2 (3) includes a base plate seat 2 (31) that is horizontally slidably connected to the base (1), and a lower clamping plate 2 (32) and an upper clamping plate 2 (35) that can move up and down are fixedly installed inside the base plate seat 2 (31).

2. The stretching assembly of a polyimide film according to claim 1, characterized in that: The outer cover (4) is provided in two sets on the left and right sides of the base (1), and the two sets of outer cover (4) are slidably connected to the slide rod (41), which is fixedly installed on the base (1).

3. The stretching assembly of a polyimide film according to claim 1, characterized in that: The clamping mechanism 1 (2) further includes a bracket 1 (23) fixedly connected to the upper end of the base plate 1 (21). A clamping rod 1 (24) is threadedly connected to the bracket 1 (23). The lower end of the clamping rod 1 (24) is rotatably connected to the upper clamping plate 1 (25). Guide rods 1 (26) are fixedly connected to both ends of the upper clamping plate 1 (25). The guide rods 1 (26) are slidably connected to the bracket 1 (23).

4. The stretching assembly of a polyimide film according to claim 1, characterized in that: The clamping mechanism 2 (3) further includes a bracket 2 (33) fixedly connected to the upper end of the base plate 2 (31). A clamping rod 2 (34) is threadedly connected to the bracket 2 (33). The lower end of the clamping rod 2 (34) is rotatably connected to the upper clamping plate 2 (35). Guide rods 2 (36) are fixedly connected to both ends of the upper clamping plate 2 (35). The guide rods 2 (36) are slidably connected to the bracket 2 (33).

5. The stretching assembly of a polyimide film according to claim 1, characterized in that: A slide rail (11) is fixedly connected to the base (1), and a slider (12) is slidably arranged on the slide rail (11). The slider (12) is fixedly connected to the lower end face of the base plate seat (31). A horizontal telescopic rod (37) is also connected to the lower part of the base plate seat (31). The other end of the telescopic rod (37) is fixedly connected to the base (1). A tension sensor (38) is arranged between the base plate seat (31) and the telescopic rod (37).

6. The stretching assembly of a polyimide film according to claim 1, characterized in that: The base plate (21) is also equipped with a temperature sensor (8) for temperature monitoring and a vision camera (9) for image information acquisition. The base plate (21) is equipped with a rangefinder (6) on its side and a rangefinder (5) for use with the rangefinder (6) on its side.

Images