Flexible screen folding test fixture

Abstract

The utility model relates to the technical field of flexible screens, in particular to a flexible screen folding test fixture, which is used for carrying out folding test on a flexible screen main body and comprises a bottom plate, a bearing table is fixedly mounted on the surface of the upper end of the bottom plate, and two second limiting frames are fixedly mounted on the surface of the upper end of the bearing table close to one end. Two first limiting frames are movably installed at the positions, close to the other end, of the surface of the upper end of the bearing table, U-shaped frames are connected into the two first limiting frames and the second limiting frame in a sliding mode, and two bending mechanisms are arranged at the positions, close to the middle, of the surface of the upper end of the bearing table. The flexible screen main body folding test fixture is matched with the bending mechanism to facilitate automatic folding test on different positions of the flexible screen main body, so that the test efficiency is effectively improved, the flexible screen main bodies with different lengths and thicknesses can be fixed, and the applicability of the fixture is effectively improved.

Description

Technical Field

[0001] This utility model relates to the field of flexible screen technology, specifically a flexible screen folding test fixture. Background Technology

[0002] Flexible screens refer to flexible organic electro-laser displays, which are a type of current-driven organic light-emitting device. The successful mass production of flexible screens not only greatly benefits the manufacturing of the next generation of high-end smartphones, but also has a profound impact on the application of wearable devices due to their low power consumption and bendability. In the future, flexible screens will be widely used as personal smart terminals continue to penetrate the market. When producing flexible screens, folding tests are required to ensure their good performance and quality.

[0003] In the prior art, such as the flexible screen testing device and equipment proposed in patent application number "CN202020501862.3", a flexible display screen is supported by a foldable substrate, and a clamping member and a positioning member are used to clamp the flexible display screen together, so that the flexible display screen can be fixed relative to the foldable substrate. The clamping member can adjust the clamping force of the positioning member on the flexible display screen, and the flexible display screen can be easily installed or removed without damaging the flexible display screen.

[0004] However, in the aforementioned patent application, after the flexible screen is fixed, only the middle part of the flexible screen can be folded for testing. When multiple other parts of the flexible screen need to be folded, the screen position needs to be adjusted manually for folding, which is quite troublesome and affects the efficiency of the folding test. Utility Model Content

[0005] The purpose of this invention is to provide a flexible screen folding test fixture to solve the problems mentioned in the background art.

[0006] The objective of this utility model can be achieved through the following technical solutions:

[0007] A flexible screen folding test fixture is used to perform folding tests on a flexible screen body. It includes a base plate, a support platform is fixedly installed on the upper surface of the base plate, two limiting frames II are fixedly installed on the upper surface of the support platform near one end, and two limiting frames I are movably installed on the upper surface of the support platform near the other end. A U-shaped frame is slidably connected inside both the limiting frames I and II. Two bending mechanisms are provided on the upper surface of the support platform near the middle, and an adjustment mechanism is provided on the upper surface of the U-shaped frame.

[0008] The bending mechanism includes a fixed plate and an L-shaped mounting plate. The fixed plate is fixedly installed on the upper surface of the support platform, and the L-shaped mounting plate is fixedly installed on the outer wall of the support platform. A connecting shaft is rotatably connected to the outer wall of the fixed plate, and two connecting plates are fixedly connected to one end of the outer wall of the connecting shaft.

[0009] Preferably, the two connecting shafts are fixedly connected to the two limiting frames respectively, and two support plates are fixedly installed on the upper surface of the support platform near both ends. A winding shaft is rotatably connected between the two support plates, and a winding shaft is rotatably connected between the two other support plates.

[0010] Both the first and second winding shafts are wound with pull ropes on their outer sides, and the outer walls of the two U-shaped frames are fixedly connected with U-shaped connecting rods, and the two U-shaped connecting rods are respectively fixedly connected to one end of the two pull ropes.

[0011] Preferably, one end of each of the two limiting frames is fixedly connected to an annular plate, the inner sidewall of the L-shaped mounting plate is rotatably connected to a gear via a shaft, the outer sidewall of the L-shaped mounting plate is equipped with a motor, and the output end of the motor is connected to the gear via a shaft. The outer sidewall of the annular plate is provided with a plurality of toothed grooves, and the plurality of toothed grooves are meshed with the gear.

[0012] Preferably, an indicator strip is fixedly connected to the outer wall of the connecting shaft, and a semi-circular limiting frame is fixedly connected to the back of the fixing plate. An arc-shaped groove is opened through the outer wall of the semi-circular limiting frame, and a sliding rod is inserted inside the arc-shaped groove. One end of the sliding rod is fixedly connected to the annular plate, and the other end of the sliding rod is fixedly connected to the limiting frame.

[0013] Preferably, the outer wall of the semi-circular limiting frame is engraved with scales, and the outer wall of the connecting shaft is fixedly connected with an indicator strip, and the indicator strip cooperates with the scales.

[0014] Preferably, the adjustment mechanism includes two insert rods and two fixed frames. The two insert rods are inserted into the upper surface of the U-shaped frame, and the two fixed frames are fixedly connected to the upper surface of the U-shaped frame.

[0015] Two crossbars are fixedly installed inside the fixed frame, and a sliding plate is sleeved between the two crossbars. A fixing rod is fixedly connected to the outer wall of the sliding plate, and several fixing holes are opened on the outer wall of the insertion rod, and the fixing holes and the fixing rod cooperate with each other.

[0016] Preferably, a return spring is sleeved on the outside of the crossbar and located between the inner wall of the fixed frame and the slide plate, and a pressure plate is fixedly connected to the bottom end of the two insert rods and located inside the U-shaped frame.

[0017] The beneficial effects of this utility model are:

[0018] 1. This utility model fixes the flexible screen body between two U-shaped frames. A motor, gears, and toothed grooves enable the connecting shaft, causing the first movable limiting frame to rotate around the connecting shaft and flip towards the two second limiting frames. This causes the flexible screen body to fold and bend for testing. Simultaneously, a motor drives the first winding shaft to rotate, causing the pull rope on it to unwind, preventing it from obstructing the flipping of the first limiting frame. After one test of the flexible screen body, the pull rope can be wound up to move the U-shaped frames connected by the U-shaped connecting rod, moving the flexible screen body to the right. This allows the bending mechanism to be activated at another location on the flexible screen body. Similarly, winding the pull rope on the second winding shaft moves the flexible screen body to the left, adjusting other positions on the flexible screen body to correspond to the folding points. Through these operations, different positions on the flexible screen body can be automatically adjusted to correspond to the folding points for testing. Combined with the bending mechanism, this facilitates automatic folding tests on different positions of the flexible screen body, effectively improving testing efficiency.

[0019] 2. This utility model moves the insert rod downwards, causing the lower pressure plate to move down to the upper surface of the flexible screen body. Then, the sliding plate is released, and with the help of two return springs, the sliding plate moves towards the insert rod, allowing the fixing rod to insert into the corresponding fixing hole and fix the position of the lower pressure plate. This effectively presses and fixes one end of the flexible screen body within the U-shaped frame. Similarly, another adjustment mechanism can be used to fix the other end of the flexible screen body inside another U-shaped frame, thus completing the fixation of the flexible screen body. Through the above operations, the adjustment mechanism can adapt to flexible screen bodies of different thicknesses, pressing and fixing both ends of the flexible screen body. With the help of two movable U-shaped frames, it can adapt to flexible screen bodies of different lengths, thereby fixing flexible screen bodies of different lengths and thicknesses, effectively improving the applicability of the fixture, so as to perform folding tests on flexible screen bodies of different lengths and thicknesses. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0022] Figure 2 This is a partial structural schematic diagram of the present invention;

[0023] Figure 3 This is a cross-sectional view of the annular plate in this utility model;

[0024] Figure 4 This is a schematic diagram of the structure of the limiting frame and the U-shaped frame in this utility model;

[0025] Figure 5 This utility model Figure 4 Enlarged view of point A in the middle.

[0026] The attached figures are labeled as follows:

[0027] 1. Base plate; 2. Support platform; 3. Flexible screen body; 4. Limiting frame one; 5. Limiting frame two; 6. U-shaped frame; 7. Support plate; 8. Winding shaft one; 9. Winding shaft two; 10. Pull rope; 11. Fixing plate; 12. Connecting shaft; 13. Ring plate; 14. Connecting plate; 15. L-shaped mounting plate; 16. Gear; 17. Semi-circular limiting frame; 18. Arc groove; 19. Slide rod; 20. Indicator bar; 21. Fixing frame; 22. Insert rod; 23. Lower pressure plate; 24. Slide plate; 25. Fixing rod; 26. Crossbar; 27. U-shaped connecting rod. Detailed Implementation

[0028] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0029] A flexible screen folding test fixture is used to perform folding tests on the flexible screen body 3, such as... Figures 1-5 As shown, the system includes a base plate 1, a support platform 2 fixedly mounted on the upper surface of the base plate 1, two limiting frames 5 fixedly mounted near one end of the upper surface of the support platform 2, and two limiting frames 4 movably mounted near the other end of the upper surface of the support platform 2. A U-shaped frame 6 is slidably connected inside both limiting frames 4 and limiting frames 5. Two bending mechanisms are provided on the upper surface of the support platform 2 near the middle. An adjustment mechanism is provided on the upper surface of the U-shaped frame 6. The bending mechanism includes a fixed plate 11 and an L-shaped mounting plate 15. The fixed plate 11 is fixedly mounted on the upper surface of the support platform 2, and the L-shaped mounting plate 15 is fixedly mounted on the outer wall of the support platform 2. A connecting shaft 12 is rotatably connected to the outer wall of the fixed plate 11, and two connecting plates 14 are fixedly connected to the outer wall of the connecting shaft 12 near one end.

[0030] Two connecting shafts 12 are fixedly connected to two limiting frames 4 respectively. Two support plates 7 are fixedly installed on the upper surface of the bearing platform 2 near both ends. A winding shaft 8 is rotatably connected between the two support plates 7. A winding shaft 8 is rotatably connected between the two outer support plates 7. Pull ropes 10 are wound around the outside of the winding shaft 8 and the winding shaft 9. U-shaped connecting rods 27 are fixedly connected to the outer walls of the two U-shaped frames 6 respectively, and the two U-shaped connecting rods 27 are fixedly connected to one end of the two pull ropes 10 respectively.

[0031] Two limiting frames 4 are fixedly connected to one end of an annular plate 13. The inner side wall of the L-shaped mounting plate 15 is rotatably connected to a gear 16 via a shaft. A motor is installed on the outer side wall of the L-shaped mounting plate 15, and the output end of the motor is connected to the gear 16 via a shaft. The outer side wall of the annular plate 13 has several toothed grooves, and the several toothed grooves are meshed with the gear 16.

[0032] An indicator strip 20 is fixedly connected to the outer wall of the connecting shaft 12. A semi-circular limiting frame 17 is fixedly connected to the back of the fixing plate 11. An arc-shaped groove 18 is opened through the outer wall of the semi-circular limiting frame 17. A sliding rod 19 is inserted into the arc-shaped groove 18. One end of the sliding rod 19 is fixedly connected to the annular plate 13, and the other end of the sliding rod 19 is fixedly connected to the limiting frame 14. The outer wall of the semi-circular limiting frame 17 is engraved with scales. An indicator strip 20 is fixedly connected to the outer wall of the connecting shaft 12, and the indicator strip 20 cooperates with the scales.

[0033] In use, the flexible screen body 3 to be tested is placed between two U-shaped frames 6, positioned between the two limiting frames 5 and the interior of the two U-shaped frames 6. Then, the two U-shaped frames 6 are moved so that their inner walls are flush against both ends of the flexible screen body 3. The ends of the flexible screen body 3 are then fixed inside the two U-shaped frames 6 using an adjustment mechanism, thus securing the U-shaped frames 6. At this time, the motor on the L-shaped mounting plate 15 drives the gear 16 to rotate, which, in conjunction with the various toothed grooves, causes the annular plate 13 to rotate around the connecting shaft 12. Simultaneously, the connecting shaft 12 rotates, causing the slide rod 19 to move along the inside of the arc-shaped groove 18. This causes the limiting frame 4 to rotate around the connecting shaft 12, flipping towards the two limiting frames 5, thus causing the flexible screen body 3 to fold and turn for a folding test. Simultaneously, the indicator bar 20 follows the rotation of the connecting shaft 12, moving along the outer wall of the semi-circular limiting frame 17. The scale can be used for reference. Knowing the bending angle of the flexible screen body 3, during this process, the motor can drive the winding shaft 8 to rotate, causing the pull rope 10 on the winding shaft 8 to unwind, so as not to obstruct the rotation of the limiting frame 4. After completing one test of the flexible screen body 3, the pull rope 10 can be wound up to drive the U-shaped frame 6 connected by the U-shaped connecting rod 27 to move, thereby moving the flexible screen body 3 to the right. This allows the other bending part of the flexible screen body 3 to be bent after the bending mechanism has been activated. At this time, the pull rope 10 on the winding shaft 9 is in a loose state and will not obstruct the movement of the flexible screen body 3. Similarly, winding up the pull rope 10 on the winding shaft 9 can drive the flexible screen body 3 to the left, and adjust the other positions of the flexible screen body 3 to correspond to the folding parts accordingly. Through the above operations, the different positions of the flexible screen body 3 can be automatically adjusted to correspond to the folding parts for folding tests. In conjunction with the bending mechanism, it is convenient to automatically fold the flexible screen body 3 at different positions, effectively improving the testing efficiency.

[0034] The adjustment mechanism includes two insert rods 22 and two fixed frames 21. The two insert rods 22 are inserted into the upper surface of the U-shaped frame 6, and the two fixed frames 21 are fixedly connected to the upper surface of the U-shaped frame 6. Two crossbars 26 are fixedly installed inside the fixed frames 21. A sliding plate 24 is sleeved between the two crossbars 26. A fixed rod 25 is fixedly connected to the outer wall of the sliding plate 24. Several fixing holes are opened on the outer wall of the insert rods 22, and the fixing holes cooperate with the fixing rods 25. A return spring is sleeved on the outer side of the crossbars 26, located between the inner wall of the fixed frame 21 and the sliding plate 24. A lower pressure plate 23 is fixedly connected to the bottom end of the two insert rods 22, located inside the U-shaped frame 6. The fixing rod 25 passes through the fixed frame 21 and is inserted into the fixing hole to fix the position of the insert rod 22.

[0035] Specifically, when fixing the flexible screen body 3, firstly, the sliding plate 24 is moved away from the insert rod 22 along the two horizontal bars 26. The two return springs are compressed, causing the limiting frame 25 to move out of the fixing hole. Then, the insert rod 22 is moved upward, causing the lower pressure plate 23 to move upward. At this time, both ends of the flexible screen body 3 are located inside the two U-shaped frames 6 and below the lower pressure plate 23. Then, the insert rod 22 is moved downward, causing the lower pressure plate 23 to move down to the upper surface of the flexible screen body 3. Then, the sliding plate 24 is released. Under the action of the elastic force of the two return springs, the sliding plate 24 can be moved towards the insert rod 22, causing the fixing rod 25 to be inserted into the corresponding fixing hole, thus positioning the lower pressure plate 23. The fixture is fixed in place, thus effectively pressing and fixing one end of the flexible screen body 3 within the U-shaped frame 6. Similarly, another adjustment mechanism can be used to fix the other end of the flexible screen body 3 within another U-shaped frame 6, completing the fixation of the flexible screen body 3. Through the above operations, the adjustment mechanism can adapt to flexible screen bodies 3 of different thicknesses, pressing and fixing both ends of the flexible screen body 3. With the two movable U-shaped frames 6, it can adapt to flexible screen bodies 3 of different lengths, thus fixing flexible screen bodies 3 of different lengths and thicknesses, effectively improving the applicability of the fixture, so as to perform folding tests on flexible screen bodies 3 of different lengths and thicknesses.

[0036] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A flexible screen folding test fixture for performing folding tests on a flexible screen body (3), comprising a base plate (1), characterized in that, A support platform (2) is fixedly installed on the upper surface of the base plate (1). Two limiting frames (5) are fixedly installed on the upper surface of the support platform (2) near one end. Two limiting frames (4) are movably installed on the upper surface of the support platform (2) near the other end. A U-shaped frame (6) is slidably connected inside both the limiting frames (4) and the limiting frames (5). Two bending mechanisms are provided on the upper surface of the support platform (2) near the middle. An adjustment mechanism is provided on the upper surface of the U-shaped frame (6). The bending mechanism includes a fixed plate (11) and an L-shaped mounting plate (15). The fixed plate (11) is fixedly installed on the upper surface of the support platform (2), and the L-shaped mounting plate (15) is fixedly installed on the outer wall of the support platform (2). A connecting shaft (12) is rotatably connected to the outer wall of the fixed plate (11), and two connecting plates (14) are fixedly connected to one end of the outer wall of the connecting shaft (12).

2. The flexible screen folding test fixture according to claim 1, characterized in that, The two connecting shafts (12) are fixedly connected to the two limiting frames (4) respectively. Two support plates (7) are fixedly installed on the upper surface of the bearing platform (2) near both ends. A winding shaft (8) is rotatably connected between the two support plates (7). A winding shaft (8) is rotatably connected between the two outer support plates (7). Both the first winding shaft (8) and the second winding shaft (9) are wound with pull ropes (10), and the outer walls of the two U-shaped frames (6) are fixedly connected with U-shaped connecting rods (27), and the two U-shaped connecting rods (27) are fixedly connected to one end of the two pull ropes (10) respectively.

3. The flexible screen folding test fixture according to claim 1, characterized in that, One end of each of the two limiting frames (4) is fixedly connected to an annular plate (13). The inner side wall of the L-shaped mounting plate (15) is rotatably connected to a gear (16) via a shaft. The outer side wall of the L-shaped mounting plate (15) is equipped with a motor, and the output end of the motor is connected to the gear (16) via a shaft. The outer side wall of the annular plate (13) is provided with several tooth grooves, and the several tooth grooves are meshed with the gear (16).

4. The flexible screen folding test fixture according to claim 3, characterized in that, An indicator strip (20) is fixedly connected to the outer wall of the connecting shaft (12), and a semi-circular limiting frame (17) is fixedly connected to the back of the fixing plate (11). An arc-shaped groove (18) is opened through the outer wall of the semi-circular limiting frame (17), and a sliding rod (19) is inserted inside the arc-shaped groove (18). One end of the sliding rod (19) is fixedly connected to the annular plate (13), and the other end of the sliding rod (19) is fixedly connected to the limiting frame (4).

5. A flexible screen folding test fixture according to claim 4, characterized in that, The outer wall of the semi-circular limiting frame (17) is engraved with scales, and the outer wall of the connecting shaft (12) is fixedly connected with an indicator strip (20), and the indicator strip (20) cooperates with the scales.

6. The flexible screen folding test fixture according to claim 1, characterized in that, The adjustment mechanism includes two insert rods (22) and two fixed frames (21). The two insert rods (22) are inserted into the upper surface of the U-shaped frame (6), and the two fixed frames (21) are fixedly connected to the upper surface of the U-shaped frame (6). The fixed frame (21) has two crossbars (26) fixedly installed inside. A sliding plate (24) is sleeved between the two crossbars (26). A fixing rod (25) is fixedly connected to the outer wall of the sliding plate (24). The outer wall of the insert rod (22) has several fixing holes, and the fixing holes cooperate with the fixing rod (25).

7. A flexible screen folding test fixture according to claim 6, characterized in that, A reset spring is fitted outside the crossbar (26) and between the inner wall of the fixed frame (21) and the slide plate (24). A lower pressure plate (23) is fixedly connected to the bottom end of the two insert rods (22) and inside the U-shaped frame (6).

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