Strength testing equipment for flexible touch screen production

Abstract

The invention relates to the technical field of material testing, and provides strength testing equipment for flexible touch screen production, the strength testing equipment comprises a bearing rack, an integrated tension testing assembly, a split type testing platform and a pressure testing module, the integrated tension testing assembly comprises a movable roller module, a stretching module and a static roller module, the movable roller module comprises a driving roller and a driven roller, the stretching module comprises a second telescopic part, sliding frames and linkage parts, the driving roller and the driven roller are connected to the surfaces of the two sliding frames correspondingly, the second telescopic part can drive the two sliding frames to be connected to the surface of the bearing rack in a face-to-face or back-to-back sliding mode, the linkage parts are fixedly arranged on the surfaces of the sliding frames, and a static roller in the static roller module penetrates through the sliding frames. The third telescopic piece can drive the static roller to move towards or away from the driving roller and the driven roller, the split type testing platform is fixedly provided with a support, the linkage piece is connected with the support, the support is slidably connected to the surface of the bearing rack, and the testing device has the advantages of being ingenious in structural matching, diversified in testing function and high in practicability.

Description

Technical Field

[0001] The present invention relates to the technical field of material testing, and in particular to a strength testing device for producing flexible touch screens. Background Art

[0002] Flexible touch screen is a new interactive interface based on flexible display technology. It can be bent, folded and even stretched. It is widely used in foldable mobile phones, wearable devices, flexible electronics and other fields. To ensure its reliability and durability, strength testing is an essential link.

[0003] After searching, the existing announcement number CN116907994 B discloses a strength testing device for display screen production, including a testing machine body, a feeding mechanism installed on the testing machine body, a clamping mechanism installed on the feeding mechanism, a locking mechanism installed on the feeding mechanism, a resistance mechanism installed on the feeding mechanism, a protective mechanism installed on the testing machine body, and a driving mechanism installed on the feeding mechanism; through the cooperation of the feeding mechanism and the clamping mechanism, it is convenient to clamp and place the display screen to be tested, and push it to the inside of the testing machine body for loading, and the operation is convenient and safe; the feeding mechanism drives and controls the locking mechanism to stably lock the clamping mechanism; the feeding mechanism drives the resistance mechanism to make the resistance mechanism resist and unload the placed display screen; the feeding mechanism drives the driving mechanism to work, so that the protective mechanism is controlled, which is beneficial to protection during testing, and the protective mechanism is opened after the test to facilitate unloading.

[0004] Considering that flexible screens not only need to undergo pressure resistance tests, but also tensile tests, bending tests, etc. before leaving the factory, the existing display screen strength testing devices still have the following defects: the functions are relatively single. Even though there are devices in the prior art that can perform separate tensile tests and bending tests on display screens, the tests are all completed separately, and it is impossible to optimize the internal structure to simultaneously have the functions of pressure resistance testing, tensile testing, and bending testing on flexible screens. Summary of the invention

[0005] The purpose of the present invention is to provide a strength testing device for flexible touch screen production, aiming to solve the problems existing in the existing display screen strength testing device.

[0006] To achieve the above object, the present invention provides the following technical solution: a strength testing device for flexible touch screen production, comprising a load-bearing frame and a pressure testing module, wherein the pressure testing module is fixedly arranged above the load-bearing frame, and further comprising: Integrated tension test assembly, the integrated tension test assembly includes a moving roller module, a stretching module and a static roller module. The moving roller module includes a driving roller and a driven roller. The stretching module includes a second telescopic member, a sliding frame and a linkage member. The driving roller and the driven roller are respectively connected to the surfaces of two groups of sliding frames. The second telescopic member can drive the two groups of sliding frames to slide towards or away from each other and be connected to the surface of the bearing frame. A linkage member is fixedly arranged on the surface of the sliding frame; The static roller module includes a static roller and a third telescopic member. The static roller penetrates through the sliding frame. The third telescopic member can drive the static roller to move towards or away from the driving roller and the driven roller; Split test platform, the split test platform is fixedly provided with a bracket. The linkage member is connected to the bracket. The bracket is slidably connected to the surface of the bearing frame.

[0007] As a further solution of the present invention, the static roller module further includes a square tube and a telescopic rod. The static roller is connected to one end of the telescopic rod. The other end of the telescopic rod is slidably connected inside the square tube. The third telescopic member is fixedly connected between the bearing frame and the square tube.

[0008] As a further solution of the present invention, the moving roller module includes a synchronous belt and a tension pulley. The synchronous belt is slidably connected between the driving roller, the driven roller and the tension pulley.

[0009] As a further solution of the present invention, the stretching module includes a C-shaped frame, a guide rail groove and a connecting rod. The second telescopic member is fixedly connected between the bearing frame and the C-shaped frame. The tension pulley is connected to the surface of the C-shaped frame. One end of the connecting rod is hinged to the center of the tension pulley or the surface of the C-shaped frame. The sliding frame is hinged to the other end of the connecting rod. A guide rail groove is arranged on the surface of the sliding frame. The static roller penetrates through the guide rail groove.

[0010] As a further solution of the present invention, the linkage member includes a first protrusion and a second protrusion. The brackets are distributed between the first protrusion and the second protrusion. The first protrusion and the second protrusion cannot be in contact with the brackets simultaneously.

[0011] As a further solution of the present invention, an opening is arranged on the surface of the bearing frame. The bearing frame is fixedly connected with a cantilever frame. The second telescopic member is fixedly connected with the cantilever frame. The C-shaped frame penetrates through the cantilever frame.

[0012] As a further solution of the present invention, the pressure test module includes a first telescopic member and a pressing plate. The first telescopic member is fixedly connected between the cantilever frame and the pressing plate.

[0013] As a further solution of the present invention, it further includes a feeding conveyor belt and a discharging conveyor belt distributed on both sides of the integrated tension test assembly. The feeding conveyor belt and the discharging conveyor belt are both connected to the bearing frame.

[0014] Advantages of the present invention: The structure design of the integrated tension test assembly and the split test platform cooperating with each other in this application can not only assist the pressure test module to complete multi-point pressure tests and bending tests, but also use the integrated tension test assembly itself to perform tension tests on flexible screens, and can also automatically classify and collect unqualified products. It has the characteristics of ingenious structural cooperation, diverse test functions, and strong practicability, and solves the problem of the single function of existing flexible touch screen strength test equipment. Brief Description of the Drawings

[0015] Figure 1 It is a perspective view of the present invention.

[0016] Figure 2 It is an exploded view of the present invention.

[0017] Figure 3 It is a schematic diagram of the disassembly of the integrated tension test assembly in the embodiment of the present invention.

[0018] Figure 4 It is a perspective view of the integrated tension test assembly in the embodiment of the present invention.

[0019] Figure 5 It is a perspective view of the split test platform in the embodiment of the present invention.

[0020] Figure 6 It is a plane cross-sectional view of the present invention.

[0021] Figure 7 For the present invention Figure 6 The top view at position a.

[0022] Figure 8 It is a bending test diagram of the flexible screen or a blanking diagram of unqualified products for the present invention.

[0023] Reference numerals: 1 - carrying frame, 11 - opening, 12 - cantilever frame; 2 - pressure test module, 21 - first telescopic member, 22 - pressure plate; 3 - integrated tension test assembly, 31 - moving roller module, 311 - driving roller, 312 - driven roller, 313 - synchronous belt, 314 - tensioning pulley, 32 - stretching module, 321 - second telescopic member, 322 - C-shaped frame, 323 - sliding frame, 324 - connecting rod, 325 - linkage member, 3251 - first protrusion, 3252 - second protrusion, 326 - guide rail groove, 33 - static roller module, 331 - static roller, 332 - third telescopic member, 333 - square tube, 334 - telescopic rod; 4 - split test platform, 41 - bracket; 5 - feeding conveyor belt; 6 - discharging conveyor belt; 7 - flexible screen. Detailed implementation mode

[0024] In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0025] The following describes in detail the specific implementation of the present invention with reference to specific embodiments.

[0026] Please refer to Figures 1 to 8 , in an embodiment of the present invention, a strength testing device for producing a flexible touch screen includes a bearing frame 1 and a pressure testing module 2. The pressure testing module 2 is fixedly arranged above the bearing frame 1, and further includes: An integrated tension testing assembly 3, the integrated tension testing assembly 3 includes a moving roller module 31, a stretching module 32 and a static roller module 33. The moving roller module 31 includes a driving roller 311 and a driven roller 312. The stretching module 32 includes a second telescopic member 321, a sliding frame 323 and a linkage member 325. The driving roller 311 and the driven roller 312 are respectively connected to the surfaces of two groups of sliding frames 323. The second telescopic member 321 can drive the two groups of sliding frames 323 to slide towards or away from each other on the surface of the bearing frame 1, and a linkage member 325 is fixedly arranged on the surface of the sliding frame 323; The static roller module 33 includes a static roller 331 and a third telescopic member 332. The static roller 331 penetrates through the sliding frame 323, and the third telescopic member 332 can drive the static roller 331 to move towards or away from the driving roller 311 and the driven roller 312; A split testing platform 4, the split testing platform 4 is fixedly provided with a bracket 41. The linkage member 325 is connected to the bracket 41. The bracket 41 is slidably connected to the surface of the bearing frame 1. One of the sliding frames 323 of the sliding frame 323 is provided with a displacement sensor for real-time monitoring of the distance between the two sliding frames 323 and the split testing platform 4.

[0027] Please refer to Figure 3 and Figure 4 , further, the static roller module 33 further includes a square tube 333 and a telescopic rod 334. The static roller 331 is connected to one end of the telescopic rod 334. The static roller 331 is not a fixed roller. When the driving roller 311 and the driven roller 312 rotate, the static roller 331 can also be driven to rotate by the flexible screen 7. The other end of the telescopic rod 334 is slidably connected in the square tube 333. The third telescopic member 332 is fixedly connected between the bearing frame 1 and the square tube 333. The driving roller 311, the driven roller 312 and the static roller 331 are all rubber rollers. A pressure sensor is arranged on the surface of the static roller 331 for real-time monitoring of the pressure value between the static roller 331 and the flexible screen 7.

[0028] Please refer to Figure 3 and Figure 4 Furthermore, the moving roller module 31 includes a synchronous belt 313 and a tension pulley 314, and the synchronous belt 313 is slidably connected between the driving roller 311, the driven roller 312 and the tension pulley 314.

[0029] Please refer to Figure 3 and Figure 4 Furthermore, the stretching module 32 includes a C-shaped frame 322, a guide rail groove 326 and a connecting rod 324. The second telescopic member 321 is fixedly connected between the bearing frame 1 and the C-shaped frame 322. The tension pulley 314 is connected to the surface of the C-shaped frame 322. One end of the connecting rod 324 is hinged to the center of the tension pulley 314 or the surface of the C-shaped frame 322. The sliding frame 323 is hinged to the other end of the connecting rod 324. A guide rail groove 326 is provided on the surface of the sliding frame 323, and the static roller 331 passes through the guide rail groove 326.

[0030] Please refer to Figure 7 Furthermore, the linkage member 325 includes a first protrusion 3251 and a second protrusion 3252. The bracket 41 is distributed between the first protrusion 3251 and the second protrusion 3252, and the first protrusion 3251 and the second protrusion 3252 cannot contact the bracket 41 simultaneously.

[0031] In the embodiment of the present invention, the principle of using the integrated tension test assembly 3 to complete the tension test of the flexible screen 7 is as follows: By controlling the movement of the static roller 331 along the guide rail groove 326 with the third telescopic member 332, the two sides of the flexible screen 7 are clamped between the moving rollers (representing the driving roller 311 and the driven roller 312) and the static roller 331. By controlling the downward movement of the C-shaped frame 322 and the tension pulley 314 with the second telescopic member 321, the downward mechanical force of the downward-moving C-shaped frame 322 or the tension pulley 314 is transmitted to the sliding frame 323, the telescopic rod 334, and two horizontal tensile forces in the opposite directions of the moving rollers and the static roller 331 through the connecting rod 324. The two horizontal tensile forces in the opposite directions are used to stretch or perform a tension test on the flexible screen 7 with the moving rollers and the static roller 331. It should be noted that since there is a gap between the second protrusion 3252 and the bracket 41 at this time, and the value of this gap is greater than the deformation amount of the flexible screen 7 during the stretching or tension test, during the tension test, the moving sliding frame 323 will not cause the movement of the split test platform 4.

[0032] Please refer to Figure 1 and Figure 6 In an embodiment of the present invention, an opening 11 is provided on the surface of the bearing frame 1, and a collection box can be placed below the opening 11. The bearing frame 1 is fixedly connected with a cantilever frame 12. The second telescopic member 321 is fixedly connected with the cantilever frame 12, and the C-shaped frame 322 passes through the cantilever frame 12.

[0033] Please refer to Figure 1 , further, the pressure test module 2 includes a first telescopic member 21 and a pressure application plate 22. The first telescopic member 21 is fixedly connected between the cantilever frame 12 and the pressure application plate 22. The specific structure and shape of the pressure application plate 22 are not limited.

[0034] Please refer to Figure 1 and Figure 6 , further, it also includes a feeding conveyor belt 5 and a discharging conveyor belt 6 distributed on both sides of the integrated tension test assembly 3. Both the feeding conveyor belt 5 and the discharging conveyor belt 6 are connected to the bearing frame 1.

[0035] In the embodiment of the present invention, the first telescopic member 21, the second telescopic member 321, and the third telescopic member 332 are all electric telescopic rods 334 or hydraulic telescopic rods 334. Each telescopic member is configured with a pressure sensor for real-time monitoring of the pressure or tension applied to the flexible screen 7. The principle of using the integrated tension test assembly 3 to assist the pressure test module 2 to complete multi-point pressure testing: when the feeding conveyor belt 5 feeds the flexible screen 7 between the driving roller 311 (taking the driving roller 311 as an example) and the static roller 331, the rotating driving roller 311 drives the flexible screen 7 to enter between the driven roller 312 and the static roller 331 along the surface of the split test platform 4, and then controls the driving roller 311 to stop rotating. The first telescopic member 21 is used to control the pressure application plate 22 to perform a pressure test on the middle position of the flexible screen 7. After achieving the purpose of moving the flexible screen 7 by continuously controlling the rotation of the driving roller 311, the pressure application plate 22 is used to perform pressure tests on the remaining positions of the flexible screen 7.

[0036] Please refer to Figure 7 , the principle of using the integrated tension test assembly 3 to assist the pressure test module 2 to complete the bending test: the third telescopic member 332 is used to control the static roller 331 to move away from the moving roller or release the clamping of the flexible screen 7, and the second telescopic member 321 is used to control the sliding frame 323, the telescopic rod 334, the moving roller, and the static roller 331 to move away from each other. The moving sliding frame 323 uses the first protrusion 3251 of the linkage member 325 to drive the split test platform 4 to separate or move away from each other by a certain distance. The first telescopic member 21 is used to control the pressure application plate 22 to squeeze the middle position of the flexible screen 7. Since the split test platform 4 can support the flexible screen 7 from both sides, it can ensure that the flexible screen 7 bends at a certain angle to achieve the purpose of the bending test. After the flexible screen 7 bends for a certain time, the second telescopic member 321 is used to control the sliding frame 323, the telescopic rod 334, the moving roller, and the static roller 331 to reset. The sliding frame 323 moving towards each other drives the split test platform 4 to move towards each other through the second protrusion 3252, thereby being able to drive the flexible screen 7 to return to the surface of the split test platform 4 again.

[0037] When the test result is qualified, the moving roller and the static roller 331 can send the qualified flexible screen 7 to the blanking conveyor belt 6. When the test result is unqualified, the gap between the split test platforms 4 is adjusted to the maximum by using the second telescopic member 321 (the maximum value of the gap is three-quarters of the length of the flexible screen 7). The flexible screen 7 is pressed under the split test platforms 4 by controlling the pressing plate 22 to extrude the middle position of the flexible screen 7 by using the first telescopic member 21. Finally, the flexible screen 7 enters the collection box from the opening 11 under the action of gravity.

[0038] In summary, the structure design of the integrated tension test assembly 3 and the split test platforms 4 cooperating with each other in this application can not only assist the pressure test module 2 to complete multi-point pressure tests and bending tests, but also realize the tension test of the flexible screen 7 by itself by using the integrated tension test assembly 3. Moreover, it can automatically classify and collect unqualified products, featuring a clever structural cooperation, diverse test functions and strong practicability, and solves the problem of the single function of the existing strength test equipment for flexible touch screens.

[0039] For those skilled in the art, although several embodiments and examples of the present invention are described, these embodiments and examples are presented as examples and are not intended to limit the scope of the invention. These new embodiments can be implemented in various other ways, and various omissions, substitutions, and changes can be made without departing from the gist of the invention.

[0040] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An intensity testing device for the production of a flexible touch screen, comprising a carrying frame (1) and a pressure testing module (2), wherein the pressure testing module (2) is fixedly arranged above the carrying frame (1), and is characterized in that, Further comprising: An integrated tension test assembly (3), the integrated tension test assembly (3) includes a moving roller module (31), a stretching module (32) and a static roller module (33), the moving roller module (31) includes a driving roller (311) and a driven roller (312), the stretching module (32) includes a second telescopic member (321), a sliding frame (323) and a linkage member (325), the driving roller (311) and the driven roller (312) are respectively connected to the surfaces of two groups of sliding frames (323), the second telescopic member (321) can drive the two groups of sliding frames (323) to slide towards or away from each other and be connected to the surface of the bearing frame (1), and a linkage member (325) is fixedly arranged on the surface of the sliding frame (323); The static roller module (33) includes a static roller (331) and a third telescopic member (332), the static roller (331) penetrates through the sliding frame (323), and the third telescopic member (332) can drive the static roller (331) to move towards or away from the driving roller (311) and the driven roller (312); A split test platform (4), the split test platform (4) is fixedly provided with a bracket (41), the linkage member (325) is connected to the bracket (41), and the bracket (41) is slidably connected to the surface of the bearing frame (1).

2. The strength testing device for producing a flexible touch screen according to claim 1, characterized in that, The static roller module (33) further includes a square tube (333) and a telescopic rod (334), the static roller (331) is connected to one end of the telescopic rod (334), the other end of the telescopic rod (334) is slidably connected in the square tube (333), and the third telescopic member (332) is fixedly connected between the bearing frame (1) and the square tube (333).

3. The strength testing device for the production of a flexible touch screen according to claim 2, characterized in that, The moving roller module (31) includes a synchronous belt (313) and a tension pulley (314), and the synchronous belt (313) is slidably connected between the driving roller (311), the driven roller (312) and the tension pulley (314).

4. The strength testing device for flexible touch screen production according to claim 3, characterized in that, The stretching module (32) includes a C-shaped frame (322), a guide rail groove (326) and a connecting rod (324), the second telescopic member (321) is fixedly connected between the bearing frame (1) and the C-shaped frame (322), the tension pulley (314) is connected to the surface of the C-shaped frame (322), one end of the connecting rod (324) is hinged to the center of the tension pulley (314) or the surface of the C-shaped frame (322), the sliding frame (323) is hinged to the other end of the connecting rod (324), a guide rail groove (326) is arranged on the surface of the sliding frame (323), and the static roller (331) penetrates through the guide rail groove (326).

5. The strength testing device for the production of a flexible touch screen according to claim 4, characterized in that, The linkage member (325) includes a first protrusion (3251) and a second protrusion (3252), the brackets (41) are distributed between the first protrusion (3251) and the second protrusion (3252), and the first protrusion (3251) and the second protrusion (3252) cannot be in contact with the brackets (41) simultaneously.

6. The strength testing device for flexible touch screen production according to claim 4, characterized in that, An opening (11) is provided on the surface of the bearing frame (1). The bearing frame (1) is fixedly connected to a cantilever frame (12). The second telescopic member (321) is fixedly connected to the cantilever frame (12). The C-shaped frame (322) penetrates through the cantilever frame (12).

7. The strength testing device for the production of a flexible touch screen according to claim 6, characterized in that, The pressure test module (2) includes a first telescopic member (21) and a pressure application plate (22). The first telescopic member (21) is fixedly connected between the cantilever frame (12) and the pressure application plate (22).

8. An intensity test device for flexible touch screen production according to claim 1, further comprising a loading conveyor belt (5) and an unloading conveyor belt (6) distributed on both sides of the integrated tension test assembly (3). The loading conveyor belt (5) and the unloading conveyor belt (6) are both connected to the bearing frame (1).

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