Tension detection device for OCA optical film

Abstract

The utility model relates to the technical field of OCA (Optical Clear Adhesive) optical film testing, discloses a tension detection device for an OCA optical film, and solves the problem of inaccurate detection data caused by incomplete tension test of the detection device on the OCA optical film. Firstly, one end of the OCA optical film is placed between an upper clamping part and a driven part, and the other end of the OCA optical film is clamped between the upper clamping part and the driven part; then the adjusting piece is rotated to drive the whole upper clamping part to move downwards, one end of the OCA optical film is clamped and fixed, the other end of the OCA optical film is placed on the inner side of the second clamping mechanism, the operation is the same as that of the first clamping mechanism, and due to the fact that the driven piece is fixedly connected with the hydraulic rod, the first clamping mechanism can be driven to move leftwards as a whole through the hydraulic rod; and the clamping mechanism I generates a pulling force on the pulling force sensor in the translation process, so that the pulling force sensor can present data of a pulling force value in real time until the OCA optical film is broken or damaged, the accuracy of pulling force detection on the whole OCA optical film is effectively improved, and the data reliability is improved.

Description

Technical Field

[0001] This utility model relates to the field of OCA optical film testing technology, specifically to a tensile testing device for OCA optical films. Background Technology

[0002] OCA is a double-sided adhesive tape made by creating optical acrylic adhesive without a substrate, and then bonding a release film to the top and bottom layers. It has advantages such as excellent clarity and high light transmittance.

[0003] Chinese patent CN210269381U discloses a tensile testing device for OCA optical films. First, one end of the OCA optical film is placed in a first mold slot, and the other end is placed in a second mold slot. Then, a hydraulic cylinder is activated, causing a lever connected to the hydraulic cylinder to press down on the first mold slot. This downward pressure causes deformation or breakage of the OCA optical film, and the force is recorded by a tensile testing device. However, this device causes localized bending deformation of the OCA optical film during testing, resulting in partial test data and preventing the acquisition of complete test data for the entire OCA optical film.

[0004] Therefore, a tensile testing device for OCA optical films is needed. Utility Model Content

[0005] The purpose of this invention is to provide a tensile testing device for OCA optical films. By using this device, the problem of incomplete tensile testing of OCA optical films and inaccurate test data is solved.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a tensile testing device for an OCA optical film, comprising a worktable, a clamping mechanism one and a clamping mechanism two arranged above the worktable, the worktable including a support plate, a fixing member fixedly installed on one side of the support plate, a hydraulic rod fixedly installed on the inner side of the fixing member, fixing plates fixedly installed on both sides of the upper end of the support plate, a tensile sensor fixedly installed on one side of the fixing plate, the clamping mechanism one including a driven member fixedly connected to the hydraulic rod, the end of the tensile sensor away from the fixing plate being fixedly connected to the driven member, an adjusting member arranged on the inner side of the driven member, an upper clamping part slidably installed on one side of the driven member, the upper clamping part being threadedly connected to the adjusting member, firstly placing one end of the OCA optical film on Between the upper clamping part and the driven part, the upper clamping part is driven to move downward by rotating the adjusting part, thereby clamping and fixing one end of the OCA optical film. The other end of the OCA optical film is placed inside the clamping mechanism two, and the operation is the same as that of the clamping mechanism one, thereby clamping and fixing both ends of the OCA optical film. Since the driven part is fixedly connected to the hydraulic rod, the clamping mechanism one can be driven to move to the left by the hydraulic rod, thereby stretching the OCA optical film as a whole. During the translation process, the clamping mechanism one simultaneously generates a tension force on the tension sensor, which can display the tension value data in real time until the OCA optical film breaks or is damaged, effectively improving the accuracy of the overall OCA optical film tension detection and enhancing the reliability of the data.

[0007] Preferably, the driven member includes a driven plate and a lower clamping member located on one side of the driven plate and fixedly connected, and a rectangular groove is formed in the middle of the driven plate;

[0008] The adjusting component includes a lead screw rotatably connected to the surface of the rectangular groove, and a rotating handle is fixedly installed at the upper end of the lead screw;

[0009] The upper clamping part includes a threaded block that is threaded to the lead screw. An upper clamping component is fixedly installed on one side of the threaded block. By rotating the handle, the lead screw is rotated, which in turn drives the threaded block to move the upper clamping component downward, so that the upper clamping component and the lower clamping component cooperate to complete the rapid clamping and fixing of the OCA optical film.

[0010] Preferably, the upper surface of the support plate is provided with a sliding groove, and a slider is fixedly installed at the lower middle of the driven plate. One side of the slider is fixedly connected to a hydraulic rod. The slider matches and slides with the sliding groove. Connecting plates are fixedly installed at both ends of the driven plate. The connecting plates are fixedly connected to the tension sensor. The hydraulic rod drives the slider to slide in the sliding groove, thereby driving the clamping mechanism to move as a whole to stretch the OCA optical film. Since the connecting plate is fixedly connected to the tension sensor, the clamping mechanism generates tension on the tension sensor during the translation process, so as to know the change of tension value in real time and enhance the accuracy of detection.

[0011] Preferably, the upper surface of the bearing plate is provided with two sets of sliding grooves, and two sliders are fixedly installed on both sides of the lower end of the driven plate. The sliders match and slide in the sliding grooves. During the movement of the driven plate, the sliders slide in the sliding grooves, thereby improving the stability of the clamping mechanism as a whole during the movement and further improving the accuracy of the detection data.

[0012] Preferably, the upper clamping member and the lower clamping member are provided with anti-slip grooves at their close ends. The anti-slip grooves effectively prevent the two ends of the OCA optical film from detaching from the clamping mechanism one and the clamping mechanism two due to excessive tension during the testing process, thereby improving the stability of the testing.

[0013] Preferably, the lower four corners of the support plate are provided with elastic support legs. Each elastic support leg includes a telescopic rod fixedly connected to the lower surface of the support plate. A foot pad is fixedly installed at the lower end of the telescopic rod. A shock-absorbing spring is sleeved on the outer side of the telescopic rod. The upper end of the shock-absorbing spring is fixedly connected to the support plate, and the lower end of the shock-absorbing spring is fixedly connected to the foot pad. By setting the shock-absorbing spring, the vibration of the ground can be effectively buffered and filtered, thereby reducing the impact on the test results and improving the accuracy of the test.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] This invention proposes a tensile testing device for OCA optical film. First, one end of the OCA optical film is placed between the upper clamping part and the driven member. Then, by rotating the adjusting member, the upper clamping part is moved downwards to clamp and fix one end of the OCA optical film. The other end of the OCA optical film is placed inside the second clamping mechanism, and the operation is the same as the first clamping mechanism, thus clamping and fixing both ends of the OCA optical film. Because the driven member is fixedly connected to the hydraulic rod, the hydraulic rod can drive the first clamping mechanism to move to the left, thereby stretching the entire OCA optical film. During the translation process, the first clamping mechanism simultaneously generates a tensile force on the tensile sensor, allowing it to display the tensile force value in real time until the OCA optical film breaks or is damaged. This effectively improves the accuracy of the overall OCA optical film tensile testing and enhances the reliability of the data. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the workbench structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the clamping mechanism of this utility model;

[0019] Figure 4 This is a schematic diagram of the driven component structure of this utility model;

[0020] Figure 5 This is a schematic diagram of the adjusting component and the upper clamping part of this utility model;

[0021] Figure 6 This is a schematic diagram of the elastic support leg structure of this utility model.

[0022] In the diagram: 1. Workbench; 11. Bearing plate; 12. Slide 1; 13. Hydraulic rod; 14. Fixing component; 15. Fixing plate; 16. Tension sensor; 17. Slide 2; 18. Elastic support leg; 181. Telescopic rod; 182. Foot pad; 183. Shock-absorbing spring; 2. Clamping mechanism 1; 21. Driven component; 211. Driven plate; 212. Slider 1; 213. Rectangular groove; 214. Lower clamping component; 215. Anti-slip groove; 216. Connecting plate; 217. Slider 2; 22. Adjusting component; 221. Lead screw; 222. Rotating handle; 23. Upper clamping part; 231. Threaded block; 232. Upper clamping component; 3. Clamping mechanism 2. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] To further understand the content of this utility model, a detailed description of this utility model will be provided in conjunction with the accompanying drawings.

[0025] Combination Figure 1-3A tensile testing device for an OCA optical film includes a worktable 1. A clamping mechanism 2 and a clamping mechanism 3 are disposed above the worktable 1. The worktable 1 includes a support plate 11. A fixing member 14 is fixedly installed on one side of the support plate 11, and a hydraulic rod 13 is fixedly installed on the inner side of the fixing member 14. Fixing plates 15 are fixedly installed on both sides of the upper end of the support plate 11. A tensile sensor 16 is fixedly installed on one side of the fixing plate 15. The clamping mechanism 2 includes a driven member 21 fixedly connected to the hydraulic rod 13. The end of the tensile sensor 16 away from the fixing plate 15 is fixedly connected to the driven member 21. An adjusting member 22 is disposed on the inner side of the driven member 21. An upper clamping part 23 is slidably installed on one side of the driven member 21 and threadedly connected to the adjusting member 22. First, one end of the OCA optical film is placed... The clamping mechanism is positioned between the upper clamping part 23 and the driven member 21. Then, by rotating the adjusting member 22, the upper clamping part 23 is driven to move downward as a whole, thereby clamping and fixing one end of the OCA optical film. The other end of the OCA optical film is placed inside the clamping mechanism 2. The operation is the same as that of the clamping mechanism 1, thereby clamping and fixing both ends of the OCA optical film. Since the driven member 21 is fixedly connected to the hydraulic rod 13, the clamping mechanism 1 can be driven to move to the left as a whole through the hydraulic rod 13, thereby stretching the OCA optical film as a whole. During the translation process, the clamping mechanism 1 also generates a tension force on the tension sensor 16, so that it can display the tension value data in real time until the OCA optical film breaks or is damaged, which effectively improves the accuracy of the overall OCA optical film tension detection and enhances the data credibility.

[0026] Combination Figure 4-5 The driven member 21 includes a driven plate 211 and a lower clamping member 214 located on one side of the driven plate 211 and fixedly connected. A rectangular groove 213 is provided in the middle of the driven plate 211.

[0027] The adjusting component 22 includes a lead screw 221 rotatably connected to the surface of the rectangular groove 213, and a rotating handle 222 is fixedly installed at the upper end of the lead screw 221;

[0028] The upper clamping part 23 includes a threaded block 231 that is threadedly connected to the lead screw 221. An upper clamping member 232 is fixedly installed on one side of the threaded block 231. By rotating the rotating handle 222, the lead screw 221 is rotated, which in turn drives the threaded block 231 to move the upper clamping member 232 downward, so that the upper clamping member 232 and the lower clamping member 214 cooperate to complete the rapid clamping and fixing of the OCA optical film.

[0029] Combination Figure 2 , Figure 4The upper surface of the support plate 11 is provided with a sliding groove 12. A slider 212 is fixedly installed in the middle of the lower end of the driven plate 211. One side of the slider 212 is fixedly connected to the hydraulic rod 13. The slider 212 matches and slides in the sliding groove 12. A connecting plate 216 is fixedly installed at both ends of the driven plate 211. The connecting plate 216 is fixedly connected to the tension sensor 16. The hydraulic rod 13 drives the slider 212 to slide in the sliding groove 12, thereby driving the clamping mechanism 2 to move as a whole, stretching the OCA optical film. Since the connecting plate 216 is fixedly connected to the tension sensor 16, the clamping mechanism 2 generates tension on the tension sensor 16 during the translation process, so as to know the change of tension value in real time and enhance the accuracy of detection.

[0030] Combination Figure 2 , Figure 4 The upper surface of the bearing plate 11 is provided with two sets of sliding grooves 17. The lower ends of the driven plate 211 are fixedly installed with sliders 217. The sliders 217 match and slide in the sliding grooves 17. During the movement of the driven plate 211, the sliders 217 slide in the sliding grooves 17, thereby improving the stability of the clamping mechanism 2 as a whole during the movement and further improving the accuracy of the detection data.

[0031] Combination Figure 4-5 Anti-slip grooves 215 are provided at the ends of the upper clamping member 232 and the lower clamping member 214 that are close to each other. The anti-slip grooves 215 effectively prevent the two ends of the OCA optical film from detaching from the clamping mechanism 1 2 and the clamping mechanism 2 3 due to excessive tension during the detection process, thereby improving the stability of the detection.

[0032] Combination Figure 2 , Figure 6 The lower end of the support plate 11 is provided with four elastic support legs 18. Each elastic support leg 18 includes a telescopic rod 181 fixedly connected to the lower surface of the support plate 11. A foot pad 182 is fixedly installed at the lower end of the telescopic rod 181. A shock-absorbing spring 183 is sleeved on the outside of the telescopic rod 181. The upper end of the shock-absorbing spring 183 is fixedly connected to the support plate 11, and the lower end of the shock-absorbing spring 183 is fixedly connected to the foot pad 182. By setting the shock-absorbing spring 183, the vibration of the ground can be effectively buffered and filtered, thereby reducing the impact on the test results and improving the accuracy of the test.

[0033] The specific working process and principle of this utility model are as follows: First, one end of the OCA optical film is placed between the upper clamping part 23 and the driven member 21. By rotating the rotating handle 222, the lead screw 221 is rotated, which in turn drives the threaded block 231 to move the upper clamping member 232 downward, so that the upper clamping member 232 and the lower clamping member 214 cooperate to complete the quick clamping and fixing of the OCA optical film. The other end of the OCA optical film is placed inside the clamping mechanism 2, and the operation is the same as that of the clamping mechanism 1. Then, the hydraulic rod 13 drives the slider 1212 to slide in the slide groove 12, which in turn drives the clamping mechanism 12 to move as a whole, stretching the OCA optical film. And because of the connection Plate 216 is fixedly connected to tension sensor 16, so that clamping mechanism 2 generates tension on tension sensor 16 during translation. At the same time, driven plate 211 drives slider 217 to slide in slide groove 17 during movement, thereby improving the overall stability of clamping mechanism 2 during movement and stretching the OCA optical film until the OCA optical film breaks or is damaged. This effectively improves the accuracy of the overall OCA optical film tension detection and enhances the credibility of the data. During the test, the damping spring 183 can effectively buffer and filter ground vibration, thereby reducing the impact on the test results and improving the detection accuracy.

[0034] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A tensile testing device for an OCA optical film, comprising a worktable (1), wherein a clamping mechanism one (2) and a clamping mechanism two (3) are disposed above the worktable (1), characterized in that: The workbench (1) includes a support plate (11), a fixing member (14) is fixedly installed on one side of the support plate (11), a hydraulic rod (13) is fixedly installed on the inner side of the fixing member (14), a fixing plate (15) is fixedly installed on both sides of the upper end of the support plate (11), a tension sensor (16) is fixedly installed on one side of the fixing plate (15), the clamping mechanism (2) includes a driven member (21) fixedly connected to the hydraulic rod (13), the end of the tension sensor (16) away from the fixing plate (15) is fixedly connected to the driven member (21), an adjusting member (22) is provided on the inner side of the driven member (21), an upper clamping part (23) is slidably installed on one side of the driven member (21), and the upper clamping part (23) is threadedly connected to the adjusting member (22).

2. The tensile testing device for an OCA optical film according to claim 1, characterized in that: The driven member (21) includes a driven plate (211) and a lower clamping member (214) located on one side of the driven plate (211) and fixedly connected. A rectangular groove (213) is provided in the middle of the driven plate (211). The adjusting component (22) includes a lead screw (221) rotatably connected to the surface of the rectangular groove (213), and a rotating handle (222) is fixedly installed at the upper end of the lead screw (221). The upper clamping part (23) includes a threaded block (231) that is threadedly connected to the lead screw (221), and an upper clamping member (232) is fixedly installed on one side of the threaded block (231).

3. The tensile testing device for an OCA optical film according to claim 2, characterized in that: The upper surface of the bearing plate (11) is provided with a sliding groove (12). A slider (212) is fixedly installed at the middle of the lower end of the driven plate (211). One side of the slider (212) is fixedly connected to the hydraulic rod (13). The slider (212) matches and slides with the sliding groove (12). Both ends of the driven plate (211) are fixedly installed with connecting plates (216). The connecting plates (216) are fixedly connected to the tension sensor (16).

4. The tensile testing device for an OCA optical film according to claim 2, characterized in that: The upper surface of the bearing plate (11) is provided with two sets of sliding grooves (17), and two sliders (217) are fixedly installed on both sides of the lower end of the driven plate (211). The sliders (217) match and slide in the sliding grooves (17).

5. The tensile testing device for an OCA optical film according to claim 2, characterized in that: The upper clamping member (232) and the lower clamping member (214) are both provided with anti-slip grooves (215) at their respective ends that are close to each other.

6. The tensile testing device for an OCA optical film according to claim 1, characterized in that: The lower end of the bearing plate (11) is provided with four elastic support legs (18). Each elastic support leg (18) includes a telescopic rod (181) fixedly connected to the lower surface of the bearing plate (11). A foot pad (182) is fixedly installed at the lower end of the telescopic rod (181). A shock-absorbing spring (183) is sleeved on the outside of the telescopic rod (181). The upper end of the shock-absorbing spring (183) is fixedly connected to the bearing plate (11), and the lower end of the shock-absorbing spring (183) is fixedly connected to the foot pad (182).

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