Device for detecting strength of polyimide film

Abstract

The utility model relates to the field of polyimide film detection, in particular to a polyimide film strength detection device which comprises a workbench, a first clamping plate is connected to the workbench in a sliding mode, and a second clamping plate is fixedly installed on the workbench. A digital display tension meter used for detecting the tensile strength of the polyimide film is fixedly installed on the outer wall of the first clamping plate, an exhaust pipe used for extracting air penetrates through and is fixedly communicated with the outer wall of the first clamping plate and the outer wall of the second clamping plate, and the exhaust pipe is externally connected with an air extractor. A U-shaped frame is slidably connected to the side, away from the exhaust pipe, of the outer wall of the first clamping plate and the side, away from the exhaust pipe, of the outer wall of the second clamping plate, and a roller abutting against the polyimide film is rotationally connected between the two inner side walls of the U-shaped frame; according to the utility model, the polyimide film can be adsorbed on the first clamping plate and the second clamping plate, and wrinkles are smoothed through the roller, so that the problem that the polyimide film is not easy to clamp due to static electricity is solved.

Description

Technical Field

[0001] The utility model relates to the field of polyimide film detection, in particular to a polyimide film strength detection device. Background Art

[0002] The tensile properties of polyimide film greatly affect the use effect of polyimide film, so the detection of tensile strength of polyimide film is particularly important.

[0003] In the prior art, there is a utility model patent with a publication (announcement) number of CN214703085U and a name of adjustable polyimide film strength detection device, which includes a base and a cover plate, a groove of the base is connected with an adjustable width adjustment structure, the top of the width adjustment structure is connected with a straight slide plate, the straight slide plate is connected with a clamping structure for clamping the polyimide film, the clamping structure is connected with a detection structure for strength detection, the detection structure is connected with an n-shaped plate, the side wall of the n-shaped plate is fixedly connected with a support plate, and the top of the support plate is fixedly connected with a controller; through the above method, the utility model can synchronously clamp the upper and lower ends of the polyimide film, reducing the clamping work force.

[0004] The device of this patent rotates through a rotating rod, and the rotating rod drives the sliding plate to rotate through the threaded groove, and the sliding plate drives the clamping structure to move toward each other synchronously. At the same time, the upper clamping plate and the lower clamping plate of the clamping structure cooperate to achieve synchronous clamping of the upper and lower ends of the polyimide film. The device achieves synchronous clamping of the upper and lower ends of the polyimide film, reducing the clamping work force. At the same time, the spacing between the upper clamping plates can be adjusted as needed, and the device can be easily adjusted to clamp polyimide films of different thicknesses, thereby improving the adaptability of the device. However, when the device of this patent clamps the polyimide film, it is easy to have wrinkles due to static electricity. In order to ensure the accuracy of subsequent detection of the equipment, the staff needs to manually smooth the wrinkles, which is time-consuming and inconvenient to use. Utility Model Content

[0005] The utility model aims to provide a strength detection device for a polyimide film.

[0006] The technical problem solved by the utility model is that the existing equipment is prone to wrinkles due to static electricity when clamping the polyimide film.

[0007] The utility model can be implemented through the following technical scheme: a strength detection device for polyimide film comprises a workbench, a first clamping plate is slidably connected to the workbench, a second clamping plate is fixedly installed on the workbench, a digital display tensile gauge for detecting the tensile strength of the polyimide film is fixedly installed on the outer wall of the first clamping plate, an exhaust pipe for extracting air is fixedly connected and penetrated through the outer walls of the first clamping plate and the second clamping plate, the exhaust pipe is connected to an exhaust fan, a U-shaped frame is slidably connected on the outer walls of the first clamping plate and the second clamping plate and on a side away from the exhaust pipe, a roller abutting the polyimide film is rotatably connected between the two inner side walls of the U-shaped frame, the polyimide film is conveniently pressed against the first clamping plate and the second clamping plate by the drive of the exhaust fan, so that the wrinkles in the polyimide film are conveniently smoothed initially, and the wrinkles are conveniently smoothed further by the movement of the roller, which not only solves the problem that the polyimide film is difficult to clamp due to static electricity, but also does not need to be manually smoothed, thereby saving time of staff and facilitating use.

[0008] A further technical improvement of the utility model is that a pressing plate cooperating with the first clamping plate and the second clamping plate is floatingly connected to the first clamping plate and the second clamping plate, and the polyimide film on the first clamping plate and the second clamping plate can be conveniently clamped by moving the pressing plate downward.

[0009] A further technical improvement of the utility model is that an adjustment mechanism for adjusting the height of the roller is provided in the inner cavity of the U-shaped frame, the adjustment mechanism includes an adjustment rod slidably connected to the inner cavity of the U-shaped frame, an adjustment frame fixedly connected to the bottom end of the adjustment rod is slidably connected between the two inner side walls of the U-shaped frame, the roller is rotationally connected to the inner cavity of the adjustment frame, the sliding adjustment rod causes the adjustment frame to slide up and down, and then the roller rotationally connected to the inner cavity of the adjustment frame moves synchronously.

[0010] A further technical improvement of the utility model is that a positioning rod is elastically slidably connected to the U-shaped frame, and the inner cavity of the adjusting rod is provided with a plurality of limiting grooves cooperating with the positioning rod. The setting of the plurality of limiting grooves facilitates limiting the different sliding heights of the adjusting rod.

[0011] A further technical improvement of the utility model is that: the inner cavity of the first clamping plate and the second clamping plate is provided with a control mechanism for causing the roller to reciprocate, the control mechanism includes a sliding block fixedly connected to the U-shaped frame, the outer walls of the first clamping plate and the second clamping plate are provided with a fixed block cooperating with the sliding block, the inner cavities of the sliding block and the fixed block are embedded with two electromagnetic blocks with opposite magnetic properties, and the outer wall of the fixed block is fixedly provided with a control switch electrically connected to the two electromagnetic blocks, the sliding block is moved relative to the fixed block by turning on the power of the two electromagnetic blocks, the U-shaped frame is synchronously moved by the movement of the sliding block, so that the roller in the inner cavity of the U-shaped frame can well smooth the wrinkles in the polyimide film, which is convenient for clamping it, and after the wrinkles are processed, the sliding block contacts the control switch at the fixed block, and the power of the two electromagnetic blocks can be cut off through the control switch, thereby facilitating the resetting of the roller and facilitating the subsequent fixation of the polyimide film.

[0012] A further technical improvement of the utility model is that a driving mechanism for causing the first clamping plate to slide back and forth is arranged on the side wall of the workbench, the driving mechanism comprises a threaded rod penetrating and rotatably connected to the side wall of the workbench, a threaded sleeve on the outer wall of the threaded rod is provided with a screw sleeve slidably connected to the workbench, the screw sleeve is fixedly connected to the first clamping plate, the threaded rod is rotated to cause the screw sleeve to slide back and forth on the workbench, and the movement of the screw sleeve drives the first clamping plate and the digital display dynamometer fixedly connected to the first clamping plate to move synchronously.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] 1. The utility model places the head end of the polyimide film on the first clamping plate, the tail end of the polyimide film on the second clamping plate, and then connects the exhaust pipe to the external exhaust fan. The polyimide film can be tightly attached to the first clamping plate and the second clamping plate by the drive of the exhaust fan, so as to facilitate the preliminary smoothing of the wrinkles. At this time, the power of the two electromagnetic blocks is turned on to make the U-shaped frame slide. The sliding of the U-shaped frame facilitates the contact between the roller and the polyimide film to further smooth the wrinkles. When the U-shaped frame slides to the tail end of the sliding groove, the sliding block will contact the control switch on the fixed block. Since the control switch is electrically connected to the two electromagnetic blocks, the control switch will automatically cut off the power supply of the two electromagnetic blocks at this time, which is convenient for the roller to reset. The utility model can adsorb the polyimide film on the first clamping plate and the second clamping plate, and smooth the wrinkles by the roller, which solves the problem that the polyimide film is not easy to clamp due to static electricity, and then it is convenient to detect and record the tensile performance of the polyimide film, which is convenient for the staff to use.

[0015] 2. The utility model can adaptively adjust the height of the roller according to the thickness of the imide film. By adjusting it, the roller can better contact with the imide film, which is convenient for smoothing wrinkles later. When adjusting, first pull the positioning rod to make the spring sleeved on the positioning rod elastically deform. At this time, the T-shaped limit block at one end of the positioning rod will be separated from the inner cavity of the corresponding limit groove, and the limit of the adjustment rod can be released. After the limit contact, slide the adjustment rod to change the height of the roller. After adjusting to the appropriate position, release the positioning rod, so that the T-shaped limit block at one end of the positioning rod can enter the inner cavity of the corresponding limit groove, which not only facilitates the equipment to detect polyimide films of different thicknesses, but also ensures the accuracy of subsequent detection of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to facilitate understanding by those skilled in the art, the present invention is further described below in conjunction with the accompanying drawings.

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the first clamping plate of the utility model;

[0019] Figure 3 It is a partial structural schematic diagram of the utility model;

[0020] Figure 4 For this utility model Figure 3 A partial enlarged view of the middle A;

[0021] Figure 5 It is a schematic diagram of the internal structure of the first clamping plate of the utility model (side view).

[0022] In the figure:

[0023] 1. Workbench; 11. Servo motor; 12. Threaded rod; 13. Screw sleeve; 14. First clamping plate; 15. Second clamping plate; 16. Digital dynamometer; 17. Controller; 18. Air hole; 19. Air extraction pipe;

[0024] 2. Bracket; 21. Electric push rod; 22. Pressure plate; 23. Extrusion spring; 24. Sliding groove; 25. U-shaped frame; 26. Adjustment frame; 27. Roller; 28. Adjustment rod; 29. ​​Support plate; 210. Positioning rod; 211. Limiting groove; 212. Sliding block; 213. Fixed block; 214. Electromagnetic block; 215. Control switch. DETAILED DESCRIPTION

[0025] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined purpose of the utility model, the specific implementation method, structure, characteristics and effects of the present invention are described in detail below in combination with the accompanying drawings and preferred embodiments.

[0026] See also Figure 1-5 As shown, this embodiment provides a technical solution, a strength detection device for a polyimide film, comprising a workbench 1, a servo motor 11 is fixedly mounted on the outer wall of the workbench 1, a threaded rod 12 is rotatably connected to the inner cavity of the workbench 1, an output end of the servo motor 11 is fixedly connected to the threaded rod 12, a threaded sleeve 13 is threadedly sleeved on the outer wall of the threaded rod 12 and is slidably connected to the workbench 1, a first clamping plate 14 slidably connected to the workbench 1 is fixedly connected to the side of the threaded sleeve 13 away from the workbench 1, and a first The clamping plate 14 is used to clamp the head end of the polyimide film; a second clamping plate 15 that cooperates with the first clamping plate 14 is fixedly connected to one side of the workbench 1 away from the first clamping plate 14, and the second clamping plate 15 is used to clamp the tail end of the polyimide film; a digital dynamometer 16 is fixedly connected to the middle end of the outer wall of the screw sleeve 13, and the measuring end of the digital dynamometer 16 is fixedly connected to the screw sleeve 13; a controller 17 is fixedly installed on the outer wall of the workbench 1, and the digital dynamometer 16 and the servo motor 11 are electrically connected to the controller 17.

[0027] The inner cavities of the first clamping plate 14 and the second clamping plate 15 are both fixedly installed with exhaust pipes 19, one end of the two exhaust pipes 19 passes through the first clamping plate 14 and the second clamping plate 15 and extends to the outside of the first clamping plate 14 and the second clamping plate 15, and the inner cavities of the first clamping plate 14 and the second clamping plate 15 are provided with air holes 18 used in conjunction with the exhaust pipes 19, and the exhaust pipes 19 are externally connected to an exhaust machine;

[0028] A bracket 2 is fixedly connected to the outer wall of the first clamping plate 14 and the second clamping plate 15 and on the side away from the exhaust pipe 19, an electric push rod 21 is fixedly installed in the inner cavity of the bracket 2, and the output end of the electric push rod 21 is fixedly connected to a pressure plate 22 for extruding the polyimide film, and an extrusion spring 23 is symmetrically fixedly connected to the bottom end of the bracket 2, and the end of the extrusion spring 23 away from the bracket 2 is fixedly connected to the pressure plate 22.

[0029] Two sliding grooves 24 are symmetrically provided on the outer walls of the first clamping plate 14 and the second clamping plate 15, and the inner cavity of the sliding groove 24 is slidably connected with a sliding block 212, and a U-shaped frame 25 is fixedly connected to the side of the sliding block 212 away from the sliding groove 24, and an adjusting frame 26 is slidably connected between the two inner side walls of the U-shaped frame 25, and a roller 27 is rotatably connected between the two inner side walls of the adjusting frame 26 through a rotating shaft, and an adjusting rod 28 fixedly connected to the adjusting frame 26 is slidably connected to the inner cavity of the U-shaped frame 25, and a supporting plate 29 is fixedly connected to the top of the U-shaped frame 25, and a positioning rod 210 is elastically slidably connected to the inner cavity of the supporting plate 29, and a T-shaped limit block is fixedly connected to the end of the positioning rod 210 close to the adjusting rod 28, and a plurality of limit grooves 211 cooperating with the T-shaped limit block are provided in the inner cavity of the adjusting rod 28;

[0030] A fixed block 213 is fixedly connected to the inner cavity of the sliding groove 24 and on one side away from the sliding block 212. Electromagnetic blocks 214 are embedded in the inner cavities of the sliding block 212 and the fixed block 213. The two electromagnetic blocks 214 have opposite magnetic poles. A control switch 215 electrically connected to the two electromagnetic blocks 214 is fixedly installed on the outer wall of the sliding block 212. The electric push rod 21 is also electrically connected to the control switch 215.

[0031] When the utility model is in use, the power supply of the servo motor 11 is turned on through the controller 17 according to the length of the polyimide film to be detected, so that the servo motor 11 drives the threaded rod 12 to rotate, and when the threaded rod 12 rotates, the screw sleeve 13 is driven to slide on the workbench 1 through the screw transmission effect, and the sliding of the screw sleeve 13 drives the first clamping plate 14 to move synchronously, and the movement of the first clamping plate 14 changes the distance between the first clamping plate 14 and the second clamping plate 15, so that the device can adapt to polyimide films of different lengths.

[0032] Then, the height of the roller 27 is adjusted according to the thickness of the polyimide film. When adjusting, the positioning rod 210 is first pulled to cause the spring sleeved on the positioning rod 210 to undergo elastic deformation. At this time, the T-shaped limit block at one end of the positioning rod 210 will be separated from the inner cavity of the corresponding limit groove 211, and the limit of the adjustment rod 28 can be released. After the limit contact, the adjustment rod 28 is slid to change the height of the roller 27. After adjusting to a suitable position, the positioning rod 210 is released again, so that the T-shaped limit block at one end of the positioning rod 210 can enter the inner cavity of the corresponding limit groove 211, thereby facilitating the device to detect polyimide films of different thicknesses.

[0033] After adjustment, the head end of the polyimide film is placed on the first clamping plate 14, and the tail end of the polyimide film is placed on the second clamping plate 15, and then the exhaust pipe 19 is connected to the external exhaust fan. The drive of the exhaust fan can make the polyimide film close to the first clamping plate 14 and the second clamping plate 15, so as to facilitate the preliminary smoothing of the wrinkles. At this time, the power of the two electromagnetic blocks 214 is turned on to make the U-shaped frame 25 slide. The sliding of the U-shaped frame 25 facilitates the contact between the roller 27 and the polyimide film to further smooth the wrinkles. When the U-shaped frame 25 slides to the tail end of the sliding groove 24, the sliding block 212 will contact the control switch 215 on the fixed block 213. Since the control switch 215 is electrically connected to the two electromagnetic blocks 214, at this time, the control switch 215 will automatically cut off the power of the two electromagnetic blocks 214, so as to facilitate the resetting of the roller 27.

[0034] After the roller 27 is reset, the control switch 215 will delay turning on the power of the electric push rod 21, and the extension of the electric push rod 21 will facilitate the clamping of the head and tail ends of the polyimide film through the pressure plate 22. After clamping for a long time, the controller 17 will first turn on the power of the servo motor 11 and then start the digital display tensile gauge 16. The digital display tensile gauge 16 is driven to move through the screw sleeve 13, and the screw sleeve 13 drives the first clamping plate 14 to slide, and the digital display tensile gauge 16 performs tensile strength detection, thereby facilitating the detection of the device.

[0035] The above description is only a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A strength detection device for a polyimide film, comprising a workbench (1), a first clamping plate (14) being slidably connected to the workbench (1), a second clamping plate (15) being fixedly mounted on the workbench (1), a digital tensile gauge (16) for detecting the tensile strength of the polyimide film being fixedly mounted on the outer wall of the first clamping plate (14), characterized in that: An exhaust pipe (19) for extracting air is fixedly connected through the outer walls of the first clamping plate (14) and the second clamping plate (15), and the exhaust pipe (19) is externally connected to an exhaust fan. A U-shaped frame (25) is slidably connected to the outer walls of the first clamping plate (14) and the second clamping plate (15) on a side away from the exhaust pipe (19), and a roller (27) that contacts the polyimide film is rotatably connected between the two inner side walls of the U-shaped frame (25).

2. The strength detection device for polyimide film according to claim 1, characterized in that: A pressing plate (22) which cooperates with the first clamping plate (14) and the second clamping plate (15) is floatingly connected to the first clamping plate (14) and the second clamping plate (15).

3. The strength detection device of the polyimide film according to claim 1, characterized in that: The inner cavity of the U-shaped frame (25) is provided with an adjustment mechanism for adjusting the height of the roller (27), the adjustment mechanism comprising an adjustment rod (28) slidably connected to the inner cavity of the U-shaped frame (25), an adjustment frame (26) fixedly connected to the bottom end of the adjustment rod (28) is slidably connected between the two inner side walls of the U-shaped frame (25), the roller (27) is rotatably connected to the inner cavity of the adjustment frame (26), the sliding adjustment rod (28) causes the adjustment frame (26) to slide up and down, thereby causing the roller (27) rotatably connected to the inner cavity of the adjustment frame (26) to move synchronously.

4. The strength detection device for polyimide film according to claim 3, characterized in that: A positioning rod (210) is elastically slidably connected to the U-shaped frame (25), and a plurality of limiting grooves (211) cooperating with the positioning rod (210) are provided in the inner cavity of the adjusting rod (28).

5. The strength detection device of the polyimide film according to claim 1, characterized in that: The inner cavities of the first clamping plate (14) and the second clamping plate (15) are provided with a control mechanism for causing the roller (27) to reciprocate, the control mechanism comprising a sliding block (212) fixedly connected to the U-shaped frame (25), the outer walls of the first clamping plate (14) and the second clamping plate (15) are provided with a fixed block (213) cooperating with the sliding block (212), the inner cavities of the sliding block (212) and the fixed block (213) are fitted with two electromagnetic blocks (214) with opposite magnetic properties, and the outer wall of the fixed block (213) is fixedly provided with a control switch (215) electrically connected to the two electromagnetic blocks (214).

6. The strength detection device of the polyimide film according to claim 1, characterized in that: A driving mechanism for causing the first clamping plate (14) to slide back and forth is arranged on the side wall of the workbench (1), and the driving mechanism comprises a threaded rod (12) penetrating and rotatably connected to the side wall of the workbench (1), and a screw sleeve (13) slidably connected to the workbench (1) is threadedly sleeved on the outer wall of the threaded rod (12), and the screw sleeve (13) is fixedly connected to the first clamping plate (14).

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