A strength testing device for flexible touch screen production

Abstract

The present invention relates to the field of material testing technology and provides a strength testing equipment for flexible touch screen production, including a carrying frame, an integrated tension testing assembly, a split test platform and a pressure testing module. The integrated tension testing assembly includes a movable roller module, a stretching module and a static roller module. The movable roller module includes an active roller and a driven roller. The stretching module includes a second telescopic member, a sliding frame and a linkage member. The active 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 toward or away from each other and be connected to the surface of the carrying frame. The surface of the sliding frame is fixedly provided with a linkage member. The static roller in the static roller module passes through the sliding frame. The third telescopic member can drive the static roller to move toward or away from the active roller and the driven roller. 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 carrying frame. The device has the characteristics of ingenious structural coordination, diverse testing functions and strong practicality.

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 screens are a new type of interactive interface based on flexible display technology. They can bend, fold, and even stretch, and are widely used in foldable phones, wearable devices, flexible electronics, and other fields. To ensure their reliability and durability, strength testing is essential.

[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 into the testing machine body for loading, and the operation is convenient and safe; the feeding mechanism drives and controls the locking mechanism, so that the locking mechanism locks the clamping mechanism stably; the feeding mechanism drives the resistance mechanism, so that the resistance mechanism resists and unloads the placed display screen; the feeding mechanism drives the driving mechanism to work, so that the protective mechanism is controlled, which is beneficial for protection during testing, and the protective mechanism is opened after the test to facilitate unloading.

[0004] Considering that flexible screens need to undergo not only pressure resistance tests but also tensile tests, bending tests, etc. before leaving the factory, 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 enable it to simultaneously have the functions of pressure resistance testing, tensile testing and bending testing of 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 existing display screen strength testing devices.

[0006] To achieve the above objectives, 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 disposed above the load-bearing frame, and further comprising:

[0007] An integrated tension test assembly includes a movable roller module, a stretching module, and a static roller module. The movable roller module includes an active roller and a driven roller. The stretching module includes a second telescopic member, a sliding frame, and a linkage member. The active roller and the driven roller are respectively connected to the surfaces of two sets of sliding frames. The second telescopic member can drive the two sets of sliding frames to slide toward or away from each other and connect to the surface of the carrier frame. The surface of the sliding frame is fixed with a linkage member.

[0008] The static roller module includes a static roller and a third telescopic member, wherein the static roller passes through the sliding frame, and the third telescopic member can drive the static roller to move toward or away from the active roller and the driven roller;

[0009] A split test platform is provided with a fixed bracket, the linkage is connected to the bracket, and the bracket is slidably connected to the surface of the bearing frame.

[0010] As a further solution of the present invention, the static roller module also 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 in the square tube, and the third telescopic member is fixedly connected between the supporting frame and the square tube.

[0011] As a further solution of the present invention, the active roller module includes a synchronous belt and a tensioning pulley, and the synchronous belt is slidably connected between the active roller, the driven roller and the tensioning pulley.

[0012] As a further solution of the present invention, the stretching module includes a V-shaped frame, a guide rail groove and a connecting rod. The second telescopic member is fixedly connected between the supporting frame and the V-shaped frame. The tensioning wheel is connected to the surface of the V-shaped frame. One end of the connecting rod is hinged to the center of the tensioning wheel or the surface of the V-shaped frame. The sliding frame is hinged to the other end of the connecting rod. The surface of the sliding frame is provided with a guide rail groove, and the static roller passes through the guide rail groove.

[0013] As a further solution of the present invention, the linkage member includes a first protrusion and a second protrusion, the bracket is distributed between the first protrusion and the second protrusion, and the first protrusion and the second protrusion cannot contact the bracket at the same time.

[0014] As a further solution of the present invention, an opening is provided on the surface of the supporting frame, the supporting frame is fixedly connected to a cantilever frame, the second telescopic member is fixedly connected to the cantilever frame, and the U-shaped frame passes through the cantilever frame.

[0015] As a further solution of the present invention, the pressure testing module includes a first telescopic member and a pressure plate, and the first telescopic member is fixedly connected between the cantilever frame and the pressure plate.

[0016] As a further solution of the present invention, it also includes a loading conveyor belt and a unloading conveyor belt distributed on both sides of the integrated tension test assembly, and the loading conveyor belt and the unloading conveyor belt are both connected to the carrying frame.

[0017] Beneficial effects of the present invention: This application utilizes a structural design that cooperates with an integrated tension test assembly and a split test platform, which can not only assist the pressure test module to complete multi-point pressure testing and bending testing, but also utilize the integrated tension test assembly itself to realize tension testing of the flexible screen, and can also automatically classify and collect unqualified products. It has the characteristics of clever structural coordination, diverse testing functions and strong practicality, and solves the problem of single function of existing flexible touch screen strength testing equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a perspective view of the present invention.

[0019] Figure 2 It is an exploded view of the present invention.

[0020] Figure 3 Schematic diagram of the disassembly of the integrated tension test assembly according to an embodiment of the present invention.

[0021] Figure 4 This is a three-dimensional diagram of an integrated tension testing assembly according to an embodiment of the present invention.

[0022] Figure 5 This is a three-dimensional diagram of a split test platform according to an embodiment of the present invention.

[0023] Figure 6 It is a planar cross-sectional view of the present invention.

[0024] Figure 7 For the present invention Figure 6 Top view at point a in the middle.

[0025] Figure 8 This is a diagram for the bending test of the flexible screen or the cutting of unqualified products according to the present invention.

[0026] Reference numerals: 1-carrying frame, 11-opening, 12-cantilever frame;

[0027] 2-pressure test module, 21-first telescopic member, 22-pressure plate;

[0028] 3-Integrated tension test assembly, 31-Dynamic roller module, 311-Active roller, 312-Driven roller, 313-Timing belt, 314-Tensioning pulley, 32-Stretching module, 321-Second telescopic member, 322-N-shaped frame, 323-Sliding frame, 324-Connecting rod, 325-Linking member, 3251-First protrusion, 3252-Second protrusion, 326-Guide rail groove, 33-Stationary roller module, 331-Stationary roller, 332-Third telescopic member, 333-Square tube, 334-Telescopic rod;

[0029] 4-split test platform, 41-bracket;

[0030] 5-Feeding conveyor belt;

[0031] 6- unloading conveyor belt;

[0032] 7-Flexible screen. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical solutions and advantages of the present invention clearer, the present invention is 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 intended to limit the present invention.

[0034] The specific implementation of the present invention is described in detail below with reference to specific embodiments.

[0035] See also Figures 1 to 8 In one embodiment of the present invention, a strength testing device for flexible touch screen production includes a supporting frame 1 and a pressure testing module 2, wherein the pressure testing module 2 is fixedly arranged above the supporting frame 1, and further includes:

[0036] An integrated tension testing assembly 3 includes a movable roller module 31, a stretching module 32, and a static roller module 33. The movable roller module 31 includes an active roller 311 and a passive roller 312. The stretching module 32 includes a second telescopic member 321, a sliding frame 323, and a linkage member 325. The active roller 311 and the passive roller 312 are respectively connected to the surfaces of two sets of sliding frames 323. The second telescopic member 321 can drive the two sets of sliding frames 323 to slide toward or away from each other and connect to the surface of the carrier frame 1. A linkage member 325 is fixedly provided on the surface of the sliding frame 323.

[0037] The static roller module 33 includes a static roller 331 and a third telescopic member 332 . The static roller 331 passes through the sliding frame 323 . The third telescopic member 332 can drive the static roller 331 to move toward or away from the active roller 311 and the driven roller 312 .

[0038] The split test platform 4 is fixedly provided with a bracket 41, the linkage 325 is connected to the bracket 41, the bracket 41 is slidably connected to the surface of the supporting frame 1, and one of the sliding frames 323 is provided with a displacement sensor for real-time monitoring of the distance between the two sliding frames 323 and the split test platform 4.

[0039] See also Figure 3 and Figure 4 Furthermore, the static roller module 33 also 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 active roller 311 and the driven roller 312 rotate, the static roller 331 can also be driven to rotate through 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 supporting frame 1 and the square tube 333. The active roller 311, the driven roller 312 and the static roller 331 are all rubber rollers. A pressure sensor is provided 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.

[0040] See also Figure 3 and Figure 4 Furthermore, the active roller module 31 includes a synchronous belt 313 and a tensioning pulley 314 , and the synchronous belt 313 is slidably connected between the active roller 311 , the driven roller 312 and the tensioning pulley 314 .

[0041] See also Figure 3 and Figure 4 Furthermore, the stretching module 32 includes a V-shaped frame 322, a guide rail groove 326 and a connecting rod 324. The second telescopic member 321 is fixedly connected between the supporting frame 1 and the V-shaped frame 322. The tensioning wheel 314 is connected to the surface of the V-shaped frame 322. One end of the connecting rod 324 is hinged to the center of the tensioning wheel 314 or the surface of the V-shaped frame 322. The sliding frame 323 is hinged to the other end of the connecting rod 324. The surface of the sliding frame 323 is provided with a guide rail groove 326, and the static roller 331 passes through the guide rail groove 326.

[0042] See also Figure 7 Furthermore, the linkage member 325 includes a first protrusion 3251 and a second protrusion 3252, and 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 at the same time.

[0043] In an embodiment of the present invention, the principle of tension testing of the flexible screen 7 is completed by using the integrated tension testing assembly 3: The third telescopic member 332 is used to control the movement of the static roller 331 along the guide groove 326, so as to clamp both sides of the flexible screen 7 between the moving rollers (representing the driving roller 311 and the driven roller 312) and the static roller 331. The second telescopic member 321 is used to control the downward movement of the C-shaped frame 322 and the tension pulley 314. The downward mechanical force of the downward-moving C-shaped frame 322 or tension pulley 314 is transmitted to the sliding frame 323, the telescopic rod 334, and two horizontal tensile forces on the back of the moving roller and the static roller 331 through the connecting rod 324. The two horizontal tensile forces on the back are used to stretch or test the tension of the flexible screen 7 by the moving roller 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.

[0044] 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 carrying frame 1, and a collection box can be placed below the opening 11. The carrying 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 penetrates through the cantilever frame 12.

[0045] [[ID=?]]Please refer to Figure 1 Furthermore, the pressure testing module 2 includes a first telescopic member 21 and a pressing plate 22. The first telescopic member 21 is fixedly connected between the cantilever frame 12 and the pressing plate 22, and the specific structure and shape of the pressing plate 22 are not limited.

[0046] Please refer to Figure 1 and Figure 6 Furthermore, it further includes a feeding conveyor belt 5 and a discharging conveyor belt 6 distributed on both sides of the integrated tension testing assembly 3. The feeding conveyor belt 5 and the discharging conveyor belt 6 are both connected to the carrying frame 1.

[0047] It should be noted that there seems to be an error in the repeated "Please refer to" in the original text. I have translated it as it is while pointing out the potential issue.In an 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, and each telescopic member is equipped 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 the multi-point pressure test is as follows: when the feeding conveyor belt 5 feeds the flexible screen 7 between the active roller 311 (taking the active roller 311 as an example) and the static roller 331, the rotating active roller 311 drives the flexible screen 7 along the surface of the split test platform 4 into between the driven roller 312 and the static roller 331, and then controls the active roller 311 to stop rotating. The first telescopic member 21 is used to control the pressure plate 22 to perform a pressure test on the middle position of the flexible screen 7. After the purpose of moving the flexible screen 7 is achieved by continuing to control the rotation of the active roller 311, the pressure plate 22 is used to perform pressure tests on the remaining positions of the flexible screen 7.

[0048] See also Figure 7 The principle of using the integrated tension test assembly 3 to assist the pressure test module 2 to complete the bending test is as follows: the third telescopic member 332 is used to control the static roller 331 to move away from the dynamic 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 dynamic roller and the static roller 331 to move in reverse. 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 in reverse for a certain distance, and the first telescopic member 21 is used to control the pressure plate 22 to press the flexible screen 7. The middle position of the screen 7 is squeezed. Since the split test platform 4 can support the flexible screen 7 from both sides, it can ensure that the flexible screen 7 is bent at a certain angle to achieve the purpose of the bending test. After the flexible screen 7 is bent for a certain time, the second telescopic member 321 is used to control the sliding frame 323, the telescopic rod 334, the movable roller and the static roller 331 to reset. The sliding frames 323 moving toward each other drive the split test platform 4 to move toward each other through the second protrusion 3252, thereby driving the flexible screen 7 back to the surface of the split test platform 4.

[0049] When the test result is qualified, the dynamic roller and the static roller 331 can deliver the qualified flexible screen 7 to the unloading conveyor belt 6. When the test result is unqualified, the second telescopic member 321 is used to adjust the gap between the split test platforms 4 to the maximum (the maximum gap value is three-quarters of the length of the flexible screen 7), and the first telescopic member 21 is used to control the pressure plate 22 to squeeze the middle position of the flexible screen 7 to press the flexible screen 7 under the split test platform 4. Finally, the flexible screen 7 enters the collection box from the opening 11 under the action of gravity.

[0050] To sum up, the present application utilizes the structural design of the integrated tension test assembly 3 and the split test platform 4 that cooperate with each other, which can not only assist the pressure test module 2 to complete multi-point pressure testing and bending testing, but also utilize the integrated tension test assembly 3 itself to realize tension testing of the flexible screen 7, and can also automatically classify and collect unqualified products. It has the characteristics of clever structural coordination, diverse testing functions and strong practicality, and solves the problem of single function of existing flexible touch screen strength testing equipment.

[0051] For those skilled in the art, although several embodiments and examples of the present invention have been described, these embodiments and examples are provided 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 scope of the invention.

[0052] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A strength testing device for flexible touch screen production, comprising a supporting frame (1) and a pressure testing module (2), wherein the pressure testing module (2) is fixedly arranged above the supporting 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); 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 contact the bracket (41) simultaneously.

2. A strength testing device for flexible touch screen production 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 inside the square tube (333), and the third telescopic member (332) is fixedly connected between the bearing frame (1) and the square tube (333).

3. A strength testing device for flexible touch screen production 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. A strength testing device for flexible touch screen production according to claim 3, characterized in that: The stretching module (32) includes a U-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 U-shaped frame (322), the tension pulley (314) is connected to the surface of the U-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 U-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 flexible touch screen production according to claim 4, characterized in that: The surface of the supporting frame (1) is provided with an opening (11), the supporting frame (1) is fixedly connected to a cantilever frame (12), the second telescopic member (321) is fixedly connected to the cantilever frame (12), and the shaped frame (322) passes through the cantilever frame (12).

6. The strength testing device for flexible touch screen production according to claim 5, characterized in that: The pressure testing module (2) comprises a first telescopic member (21) and a pressure plate (22), wherein the first telescopic member (21) is fixedly connected between the cantilever frame (12) and the pressure plate (22).

7. A strength testing device for flexible touch screen production according to claim 1, further comprising a loading conveyor belt (5) and a unloading conveyor belt (6) distributed on both sides of the integrated tension testing assembly (3), wherein the loading conveyor belt (5) and the unloading conveyor belt (6) are both connected to the supporting frame (1).

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