Device for detecting tensile property in production of photovoltaic EVA (Ethylene Vinyl Acetate) film

Abstract

The utility model relates to the technical field of photovoltaic EVA film production tensile property detection devices, in particular to a photovoltaic EVA film production tensile property detection device which comprises a detection table, an installation cavity is formed in the left side of the interior of the detection table, and an opening communicated with the upper end of the installation cavity is formed in the upper end face of the detection table. A threaded rod is movably connected to the right side of the interior of the mounting cavity through a bearing, the left end of the threaded rod penetrates through and extends to the left side of the detection table and is fixedly connected with a handle, the outer wall of the threaded rod is in threaded connection with a threaded seat, and the upper end face of the connecting block is fixedly connected with a first mounting block tightly attached to the upper end of the detection table. The right side of the first mounting block is fixedly connected with a first clamping mechanism; and the left side of the second mounting block is fixedly connected with a second clamping mechanism, so that the distance between the first clamping mechanism and the second clamping mechanism can be conveniently adjusted when the photovoltaic EVA film is detected by the device, and the tensile property of the photovoltaic EVA films with different lengths can be conveniently detected.

Description

Technical Field

[0001] The utility model relates to the technical field of photovoltaic EVA film production tensile performance detection device, in particular to a photovoltaic EVA film production tensile performance detection device. Background Art

[0002] Tensile testing machine is also known as universal material testing machine. Universal testing machine is a mechanical force testing machine used to perform mechanical property tests such as static load, stretching, compression, bending, shearing, tearing, peeling, etc. on various materials. It is suitable for various physical and mechanical property tests of plastic plates, pipes, special-shaped materials, plastic films, rubber, wires and cables, steel, glass fiber and other materials. It is an indispensable testing equipment for material development, physical property testing, teaching research, quality control, etc. The tensile machine fixture is an important part of the instrument. Different materials require different fixtures, which is also an important factor in whether the test can be carried out smoothly and the accuracy of the test results.

[0003] In the existing tensile performance testing device, during the tensile performance testing of the photovoltaic EVA film, the distance between the two clamping structures used to clamp and fix the photovoltaic EVA film is fixed, which has limitations on the testing of the photovoltaic EVA film, resulting in obstacles when testing some photovoltaic EVA films with longer lengths. It is difficult to fix and test photovoltaic EVA films of different lengths. Therefore, it is necessary to propose a photovoltaic EVA film production tensile performance testing device to solve the above-mentioned problems. Utility Model Content

[0004] The purpose of the utility model is to provide a photovoltaic EVA film production tensile performance testing device, which has the characteristics of conveniently adjusting the distance between the first clamping mechanism and the second clamping mechanism when testing the photovoltaic EVA film, and is convenient for tensile performance testing of photovoltaic EVA films of different lengths.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a photovoltaic EVA film production tensile performance detection device, comprising a detection platform, a fixing plate is fixedly connected to the right side of the upper end surface of the detection platform, an electric cylinder is installed on the left side of the fixing plate, a tension sensor is installed on the left end of the electric cylinder, a second mounting block is installed on the left side of the tension sensor, and an amplifier and a data processor distributed front and back are installed on the right side of the second mounting block, a mounting cavity is opened on the left side of the interior of the detection platform, an opening connected to the upper end of the mounting cavity is opened on the upper end surface of the detection platform, a threaded rod is movably connected to the right side of the interior of the mounting cavity through a bearing, the left end of the threaded rod passes through and extends to the left side of the detection platform and is fixedly connected to a handle, the outer wall of the threaded rod is threadedly connected to a threaded seat, the upper end of the threaded seat is fixedly connected to a connecting block extending into the opening, the upper end surface of the connecting block is fixedly connected to a first mounting block tightly fitted with the upper end of the detection platform, and the right side of the first mounting block is fixedly connected to a first clamping mechanism;

[0006] A second clamping mechanism having the same structure as the first clamping mechanism and symmetrically distributed is fixedly connected to the left side of the second mounting block.

[0007] In order to facilitate the clamping and fixing of the photovoltaic EVA film, as a preferred photovoltaic EVA film production tensile performance detection device of the utility model, the first clamping mechanism includes a U-shaped shell, a clamping plate is arranged inside the U-shaped shell, the upper end of the clamping plate is movably connected with an adjusting screw, and the upper end of the adjusting screw penetrates and extends to the top of the U-shaped shell.

[0008] In order to improve the stability of the movement of the first mounting block, as a preferred photovoltaic EVA film production tensile performance detection device of the utility model, a sliding rod located below the threaded rod is installed inside the mounting cavity, and the outer wall of the sliding rod is sleeved with a sliding sleeve fixedly connected to the lower end of the threaded seat.

[0009] In order to facilitate the limiting effect on the downward movement of the clamping plate, as a preferred photovoltaic EVA film production tensile performance detection device of the utility model, a second slide groove is opened on the inner left side of the U-shaped shell, and the inner sliding connection of the second slide groove is provided with a second slider fixedly connected to the left side of the clamping plate.

[0010] In order to improve the stability of the movement of the second mounting block, as a preferred photovoltaic EVA film production tensile performance detection device of the utility model, the upper end surface of the detection platform is provided with a first slide groove located on the right side of the opening, and the internal sliding connection of the first slide groove is provided with a limiting slider fixedly connected to the lower end of the second mounting block.

[0011] In order to facilitate the control of the operation and shutdown of the device, as a preferred photovoltaic EVA film production tensile performance detection device of the utility model, a control panel is installed on the front end surface of the detection table.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0013] When the utility model detects the tensile strength of the photovoltaic EVA film, the distance between the first clamping mechanism and the second clamping mechanism is adjusted according to the length of the photovoltaic EVA film to be detected. First, the right end of the photovoltaic EVA film is clamped and fixed by the second clamping mechanism. Then, the handle is held and rotated to drive the threaded rod to rotate, the threaded seat moves, and the first mounting block moves, so that the distance between the first clamping mechanism and the second clamping mechanism matches the length of the photovoltaic EVA film. Then, the first clamping mechanism clamps and fixes the left end of the photovoltaic EVA film. After fixation, the electric cylinder is turned on, and the electric cylinder pulls the second mounting block to the right. The tension is sensed by the tension sensor, and the data is processed by the amplifier and the data processor to obtain the tensile strength value. Then, the device is convenient for adjusting the distance between the first clamping mechanism and the second clamping mechanism when detecting the photovoltaic EVA film, so as to facilitate the tensile strength detection of photovoltaic EVA films of different lengths. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is the overall structure diagram of the utility model;

[0015] Figure 2 It is an overall cross-sectional view of the utility model;

[0016] Figure 3 It is a cross-sectional view of the first clamping mechanism of the utility model.

[0017] In the figure: 1. test bench; 101. mounting cavity; 102. opening; 103. first slide groove; 2. threaded rod; 201. handle; 202. threaded seat; 203. connecting block; 204. first mounting block; 205. slide rod; 206. sleeve; 3. first clamping mechanism; 301. U-shaped shell; 302. clamping plate; 303. adjusting screw; 304. second slide block; 305. second slide groove; 4. second clamping mechanism; 5. fixing plate; 501. electric cylinder; 502. second mounting block; 503. limit slide block; 504. amplifier; 505. data processor; 506. tension sensor; 6. control panel. DETAILED DESCRIPTION

[0018] See also Figures 1 to 3A photovoltaic EVA film production tensile performance testing device includes a testing platform 1, a fixing plate 5 is fixedly connected to the right side of the upper end surface of the testing platform 1, an electric cylinder 501 is installed on the left side of the fixing plate 5, a tension sensor 506 is installed on the left end of the electric cylinder 501, a second mounting block 502 is installed on the left side of the tension sensor 506, and an amplifier 504 and a data processor 505 distributed front and back are installed on the right side of the second mounting block 502. An installation cavity 101 is opened on the left side of the interior of the testing platform 1, and a mounting cavity 101 is opened on the upper end surface of the testing platform 1. The upper end is connected to the opening 102, the right side of the interior of the installation cavity 101 is movably connected with a threaded rod 2 through a bearing, the left end of the threaded rod 2 penetrates and extends to the left side of the detection platform 1 and is fixedly connected with a handle 201, the outer wall of the threaded rod 2 is threadedly connected with a threaded seat 202, the upper end of the threaded seat 202 is fixedly connected with a connecting block 203 extending into the opening 102, the upper end surface of the connecting block 203 is fixedly connected with a first mounting block 204 that is tightly fitted with the upper end of the detection platform 1, and the right side of the first mounting block 204 is fixedly connected with a first clamping mechanism 3;

[0019] A second clamping mechanism 4 having the same structure as the first clamping mechanism 3 and symmetrically distributed is fixedly connected to the left side of the second mounting block 502 .

[0020] In this embodiment: when testing the tensile strength of the photovoltaic EVA film, the distance between the first clamping mechanism 3 and the second clamping mechanism 4 is adjusted according to the length of the photovoltaic EVA film to be tested. First, the right end of the photovoltaic EVA film is clamped and fixed by the second clamping mechanism 4, then the handle 201 is held and rotated to drive the threaded rod 2 to rotate, and the threaded seat 202 moves, driving the first mounting block 204 to move, driving the distance between the first clamping mechanism 3 and the second clamping mechanism 4 to match the length of the photovoltaic EVA film, and then the first clamping mechanism 3 clamps and fixes the left end of the photovoltaic EVA film. After fixation, the electric cylinder 501 is turned on, and the electric cylinder 501 pulls the second mounting block 502 to the right, and the tension is sensed by the tension sensor 506, and the data is processed by the amplifier 504 and the data processor 505 to obtain the tensile strength value, so that the device can conveniently adjust the distance between the first clamping mechanism 3 and the second clamping mechanism 4 when testing the photovoltaic EVA film, so as to facilitate the tensile strength test of photovoltaic EVA films of different lengths.

[0021] As a technical optimization solution of the utility model, the first clamping mechanism 3 includes a U-shaped shell 301, a clamping plate 302 is arranged inside the U-shaped shell 301, and the upper end of the clamping plate 302 is movably connected to an adjusting screw 303, and the upper end of the adjusting screw 303 passes through and extends to the top of the U-shaped shell 301.

[0022] In this embodiment: when the first clamping mechanism 3 fixes the photovoltaic EVA film, one end of the photovoltaic EVA film is placed in the U-shaped shell 301, and then the adjusting screw 303 is rotated downward to drive the clamping plate 302 to move downward, and the photovoltaic EVA film is fixed to the U-shaped shell 301, thereby facilitating the clamping and fixing of the photovoltaic EVA film.

[0023] As a technical optimization solution of the utility model, a slide rod 205 located below the threaded rod 2 is installed inside the installation cavity 101, and a slide sleeve 206 fixedly connected to the lower end of the threaded seat 202 is sleeved on the outer wall of the slide rod 205.

[0024] In this embodiment, when the threaded seat 202 moves, the sliding sleeve 206 slides on the outer wall of the sliding rod 205, thereby improving the stability of the movement of the first installation block 204.

[0025] As a technical optimization solution of the utility model, a second slide groove 305 is opened on the left side inside the U-shaped shell 301, and a second slider 304 fixedly connected to the left side of the clamping plate 302 is slidably connected inside the second slide groove 305.

[0026] In this embodiment, when the clamping plate 302 moves downward, the second sliding block 304 slides in the second sliding groove 305, thereby facilitating the downward movement of the clamping plate 302 to limit the movement.

[0027] As a technical optimization solution of the utility model, the upper end surface of the detection platform 1 is provided with a first slide groove 103 located on the right side of the opening 102, and the interior of the first slide groove 103 is slidably connected to a limiting slider 503 fixedly connected to the lower end of the second mounting block 502.

[0028] In this embodiment, when the second installation block 502 moves left and right, the limiting slider 503 slides in the first sliding groove 103, thereby improving the stability of the movement of the second installation block 502.

[0029] As a technical optimization solution of the present invention, a control panel 6 is installed on the front end surface of the detection platform 1 .

[0030] In this embodiment: the operation and shutdown of the device can be conveniently controlled through the control panel 6.

[0031] Working principle: When testing the tensile strength of the photovoltaic EVA film, the distance between the first clamping mechanism 3 and the second clamping mechanism 4 is adjusted according to the length of the photovoltaic EVA film to be tested. First, the right end of the photovoltaic EVA film is clamped and fixed by the second clamping mechanism 4. Then, the handle 201 is held and rotated to drive the threaded rod 2 to rotate, the threaded seat 202 moves, and the sliding sleeve 206 is located on the outer wall of the sliding rod 205 to slide, driving the first mounting block 204 to move, driving the distance between the first clamping mechanism 3 and the second clamping mechanism 4 to match the length of the photovoltaic EVA film, and then the first clamping mechanism 3 clamps the left end of the photovoltaic EVA film. Tightly fix, when the first clamping mechanism 3 fixes the photovoltaic EVA film, one end of the photovoltaic EVA film is placed in the U-shaped shell 301, and then the adjusting screw 303 is rotated downward to drive the clamping plate 302 to move downward, and the second slider 304 is located in the second slide groove 305 and slides to fix the photovoltaic EVA film to the U-shaped shell 301. After fixation, turn on the electric cylinder 501, and the electric cylinder 501 pulls the second mounting block 502 to the right. The limit slider 503 slides in the first slide groove 103, and the tension is sensed by the tension sensor 506, and the data is processed by the amplifier 504 and the data processor 505 to obtain the tensile value.

[0032] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A photovoltaic EVA film production tensile performance testing device, comprising a testing platform (1), a fixing plate (5) is fixedly connected to the right side of the upper end surface of the testing platform (1), an electric cylinder (501) is installed on the left side of the fixing plate (5), a tension sensor (506) is installed on the left end of the electric cylinder (501), a second mounting block (502) is installed on the left side of the tension sensor (506), and an amplifier (504) and a data processor (505) distributed front and rear are installed on the right side of the second mounting block (502), characterized in that: The left side of the interior of the detection platform (1) is provided with an installation cavity (101); the upper end surface of the detection platform (1) is provided with an opening (102) which is in communication with the upper end of the installation cavity (101); the right side of the interior of the installation cavity (101) is movably connected with a threaded rod (2) via a bearing; the left end of the threaded rod (2) penetrates and extends to the left side of the detection platform (1) and is fixedly connected with a handle (201); the outer wall of the threaded rod (2) is threadedly connected with a threaded seat (202); the upper end of the threaded seat (202) is fixedly connected with a connecting block (203) which extends into the opening (102); the upper end surface of the connecting block (203) is fixedly connected with a first installation block (204) which is tightly fitted with the upper end of the detection platform (1); the right side of the first installation block (204) is fixedly connected with a first clamping mechanism (3); A second clamping mechanism (4) having the same structure as the first clamping mechanism (3) and symmetrically distributed is fixedly connected to the left side of the second mounting block (502).

2. A photovoltaic EVA film production tensile performance detection device according to claim 1, characterized in that: The first clamping mechanism (3) comprises a U-shaped shell (301), a clamping plate (302) is arranged inside the U-shaped shell (301), an upper end of the clamping plate (302) is movably connected to an adjusting screw (303), and the upper end of the adjusting screw (303) passes through and extends to the top of the U-shaped shell (301).

3. A photovoltaic EVA film production tensile performance detection device according to claim 1, characterized in that: A sliding rod (205) located below the threaded rod (2) is installed inside the installation cavity (101), and a sliding sleeve (206) fixedly connected to the lower end of the threaded seat (202) is sleeved on the outer wall of the sliding rod (205).

4. A photovoltaic EVA film production tensile performance detection device according to claim 2, characterized in that: A second slide groove (305) is provided on the left side inside the U-shaped shell (301), and a second sliding block (304) fixedly connected to the left side of the clamping plate (302) is slidably connected inside the second slide groove (305).

5. A photovoltaic EVA film production tensile performance detection device according to claim 1, characterized in that: The upper end surface of the detection platform (1) is provided with a first sliding groove (103) located on the right side of the opening (102), and the interior of the first sliding groove (103) is slidably connected to a limiting sliding block (503) fixedly connected to the lower end of the second mounting block (502).

6. A photovoltaic EVA film production tensile performance detection device according to claim 1, characterized in that: A control panel (6) is installed on the front end surface of the detection platform (1).

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