An integrated detection device and method for impact resistance and bending resistance of liquid crystal display screen

Abstract

The present invention discloses an integrated detection device and method for the impact resistance and bending resistance of a liquid crystal display screen. The curling mechanism includes a plurality of support plates, two hydraulic cylinders are installed between each two support plates, the bottom of the hydraulic cylinder body is hinged to the two support plates, the telescopic end of the hydraulic cylinder is hinged to two support rods, and the two support rods are hinged to two trapezoidal frames; the impact mechanism includes a mounting plate, a plurality of strip blocks are movably installed on the mounting plate, a plurality of impact heads are installed at one end of the plurality of strip blocks away from the mounting plate, a plurality of columnar heads are fixedly connected to the side walls of one end of the plurality of strip blocks away from the plurality of impact heads, a rotatable driving plate is installed at the center of the mounting plate, and an arc-shaped protrusion is fixedly connected to the outer wall of the driving plate. The present invention solves the problem that the traditional detection method often uses a separate impact tester or bending tester, and the impact tester and bending tester can only test a single point.

Description

Technical Field

[0001] The present invention relates to the technical field of quality inspection, and in particular to an integrated inspection device and method for the impact resistance and bending resistance of a liquid crystal display screen. Background Art

[0002] With the continuous advancement of science and technology, liquid crystal display technology has been widely used in various electronic devices, from traditional TVs and computer monitors to modern smart phones, tablet computers and other portable devices, LCD screens play a vital role. However, with the growing demand of consumers for the portability and flexibility of electronic devices, flexible LCD screens have gradually become a hot spot for research and development.

[0003] Compared with traditional rigid LCDs, flexible LCDs have higher flexibility, bendability and impact resistance, which makes them have broad application prospects in wearable devices, curved displays, foldable phones, etc. However, due to the special properties of flexible LCDs, their manufacturing and testing processes also face greater challenges.

[0004] In the production process of flexible LCD screens, impact resistance and bending resistance are one of the important performance indicators. In order to ensure the quality and reliability of flexible LCD screens, strict impact resistance and bending resistance tests are required. However, traditional testing methods often use separate impact testers or bending testers, and impact testers and bending testers can only test a single point. At the same time, the equipment operation is cumbersome and inefficient, resulting in inaccurate test results.

[0005] Therefore, it is particularly important to develop an integrated detection device and method that can simultaneously detect the impact resistance and bending resistance of flexible liquid crystal displays. Summary of the invention

[0006] In order to solve the problem that traditional detection methods often use a separate impact tester or bending tester, and the impact tester and the bending tester can only test a single point, the purpose of the present invention is to provide an integrated impact and bending resistance detection device and method for liquid crystal display screens.

[0007] In order to achieve the above-mentioned object, the present invention adopts the following technical scheme: an integrated detection device for the impact resistance and bending resistance of a liquid crystal display screen comprises a mounting plate, on which a curling mechanism and an impact mechanism are mounted;

[0008] The curling mechanism includes a plurality of support plates, two hydraulic cylinders are installed between each two support plates, the bottom of the hydraulic cylinder body is hinged to the two support plates, the telescopic end of the hydraulic cylinder is hinged to two support rods, the two support rods are hinged to two trapezoidal frames, the support plate is used to support the LCD screen with a curved surface, a strip hole is opened in the middle of the support plate, and two symmetrically arranged electric suction cups are inlaid in the middle of the curved surface of the support plate near both ends;

[0009] The impact mechanism comprises two symmetrically arranged guide rods, the outer walls of the two guide rods are slidably connected with a mounting plate, a plurality of strip blocks are movably installed on the mounting plate in an annular array, a plurality of impact heads are installed at one end of the plurality of strip blocks away from the mounting plate, a plurality of column heads are fixedly connected to the side walls of the plurality of strip blocks at one end away from the plurality of impact heads, a baffle is fixedly connected to the outer wall of the strip block, a first spring which is tightly pressed against the baffle is sleeved on the outer wall of the strip block, a rotatable driving plate is installed at the center of the mounting plate, and a circular notch groove, a vertical groove and an arc groove which are connected in sequence are opened on one side of the driving plate; the inner walls of the circular notch groove, the vertical groove and the arc groove are slidably connected to the outer walls of the plurality of column heads, and an arc protrusion is fixedly connected to the outer wall of the driving plate;

[0010] A linkage mechanism is installed on the mounting plate and the mounting disk, which is used for intermittently cooperating with the arc-shaped protrusion to realize the step-by-step movement of the mounting disk.

[0011] Preferably, a first connecting block is fixedly provided at the bottom of the hydraulic cylinder body, a first mounting groove is provided on the side wall of the support plate, and the side walls of the first connecting block close to the two ends are hinged to the inner walls of the first mounting grooves on the two support plates; a second connecting block is fixedly connected to the top of the telescopic end of the hydraulic cylinder, two second mounting grooves are provided at both ends of the second connecting block, and the inner walls of the two second mounting grooves are hinged to the two support rods; a third mounting groove is provided on the trapezoidal frame, and the inner wall of the third mounting groove is hinged to the support rod.

[0012] Preferably, an end of a support plate at one end of the curling mechanism is fixedly mounted on the mounting plate, and when the curling mechanism is curled, a plurality of support plates surround the outer circumference of the impact mechanism, and when the impact head impacts, the impact head passes through the strip hole.

[0013] Preferably, two ends of the annular notch groove are respectively connected to one end of the vertical groove and the arc groove, and one end of the vertical groove and the arc groove away from the annular notch groove are connected to each other.

[0014] Preferably, a motor is fixedly installed at the center of the mounting disk, the output end of the motor is axially connected to the center of the driving disk, a number of fixed blocks arranged in a circular array are fixedly connected to the mounting disk, the strip block is slidably connected to the side wall of the fixed block, an electric push rod is fixedly installed on the fixed block, a movable plate slidably connected to the outer wall of the strip block is fixedly connected to the telescopic end of the electric push rod, the end of the first spring away from the baffle is pressed against the movable plate; the end of the guide rod is fixedly connected to the mounting plate.

[0015] Preferably, the linkage mechanism includes a first U-shaped frame with an opening direction facing downward, a lifting rod is slidably connected to the top surface of the first U-shaped frame, a lifting block is fixedly connected to the bottom of the lifting rod and blocked with the inner wall of the first U-shaped frame, a second U-shaped frame is fixedly connected to the top of the lifting rod, the inner wall of the second U-shaped frame is rotatably connected to the first roller for rolling cooperation with the outer wall of the arc-shaped protrusion through a pin shaft, the outer wall of the lifting block located above the first U-shaped frame is sleeved with a second spring that is tightly pressed against the bottom of the second U-shaped frame, an opening groove is provided at the bottom of the lifting block, the inner wall of the opening groove is rotatably connected to a dial plate through a pin shaft, a mounting groove is provided at the bottom of the dial plate, and the inner wall of the mounting groove is rotatably connected to the second roller through a pin shaft, The bottom of the lifting block is fixedly connected to a first rectangular plate, the side wall of the lifting block located at the opening groove is fixedly connected to a second rectangular plate, the first rectangular plate and the second rectangular plate are fixedly connected to an arc rod, a through hole is provided on the dial plate, and the arc rod movably passes through the through hole; the outer wall of the arc rod located between the dial plate and the second rectangular plate is sleeved with a third spring, the side wall of the first U-shaped frame is fixedly connected to a connecting plate fixedly connected to the mounting plate, the linkage mechanism also includes a support plate fixedly connected to the mounting plate, the support plate is located directly below the first U-shaped frame, and the top surface is fixedly connected to evenly arranged stop bars, the top of the stop bar is set in a circular arc, and the inner wall of the first U-shaped frame is fixedly connected to a stop bar that is in blocking cooperation with the dial plate.

[0016] Preferably, the plurality of impact heads are provided in various specifications, a threaded head is provided at the end of the strip block, and the threaded head is threadedly connected to the impact head.

[0017] Preferably, the outer wall of the guide rod is provided with a chamfered plane, and the chamfered plane is provided with a plurality of evenly arranged arc grooves; a ball bearing elastically pressed against the arc groove is installed on the mounting plate, an L-shaped plate is fixedly connected to the mounting plate, a movable rod is slidably connected to the bottom of the L-shaped plate, a limiting plate blocked against the bottom of the L-shaped plate is fixedly connected to the bottom of the movable rod, a movable block is fixedly connected to one end of the movable rod away from the limiting plate, a fourth spring pressed against the movable block is sleeved on the outer wall of the movable rod, and the ball bearing is rollingly embedded in the top of the movable block.

[0018] A method for detecting an integrated device for detecting impact resistance and bending resistance of a liquid crystal display screen comprises the following steps:

[0019] Step 1: unfold the curling mechanism, lay the flexible LCD screen on the curved surface of the support plate, and use the electric suction cup to absorb the flexible LCD screen;

[0020] Step 2: The telescopic end of the hydraulic cylinder is extended, and the two support rods connected thereto are pulled through the second connecting block, so that the two support plates connected to the first connecting block are respectively flipped with the intersection of the first connecting block and the support plate as the axis, thereby bending the flexible liquid crystal display screen;

[0021] When the telescopic ends of all hydraulic cylinders are extended, all support plates form a circular surround to perform circular bending on the flexible LCD display;

[0022] When the telescopic end of the local hydraulic cylinder is extended, the local flexible liquid crystal display screen is bent;

[0023] During the test, the unfolding and bending actions of the curling mechanism are repeated alternately and repeatedly;

[0024] Step 3: After the flexible liquid crystal display screen is circularly bent, the driving disk rotates clockwise, and when the cylindrical head enters the vertical groove through the annular notch groove, the impact head follows the bar block and is ejected toward the flexible liquid crystal display screen under the elastic force of the first spring on the baffle, and the impact head impacts the flexible liquid crystal display screen;

[0025] Step 4: The cylindrical head enters the arc groove. The cylindrical head cooperates with the arc groove to pull the bar block back, so that the impact head is separated from the flexible liquid crystal display screen, and the cylindrical head enters the annular notch groove; the driving disk continues to rotate, and several impact heads hit the curved flexible liquid crystal display screen in turn;

[0026] Step 5: The driving disk rotates one circle, and the arc-shaped protrusion moves to the linkage mechanism. The linkage mechanism and the arc-shaped protrusion intermittently cooperate to realize the step-by-step movement of the installation disk, and the next step is to have several impact heads impact the curved flexible LCD screen in turn.

[0027] Compared with the prior art, the present invention has the following beneficial effects:

[0028] 1. The present invention can realize continuous detection of impact resistance and bending resistance of flexible liquid crystal display screens through a curling mechanism and an impact mechanism, thereby greatly improving detection efficiency.

[0029] 2. In the present invention, all the telescopic ends of the hydraulic cylinders are extended so that all the support plates form a circular surround, thereby performing a circular bending test on the flexible liquid crystal display screen.

[0030] 3. The present invention performs a bending test on a local flexible liquid crystal display screen by extending the telescopic end of the local hydraulic cylinder.

[0031] 4. In the present invention, a plurality of impact heads impact the curved flexible liquid crystal display screen in turn through the rotation of the driving disk, thereby realizing multi-point testing.

[0032] 5. In the present invention, every time the driving disk rotates one circle, the linkage mechanism and the arc-shaped protrusion intermittently cooperate to achieve step-by-step movement of the mounting disk.

[0033] 6. The present invention uses a plurality of impact heads to impact the flexible liquid crystal display screen in a circle in turn, and at the same time, the plurality of impact heads follow the step-by-step movement of the mounting plate, so that the flexible liquid crystal display screen is subjected to a matrix multi-point test when unfolded, thereby improving the accuracy of the test. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] The present invention is further described in detail below with reference to the accompanying drawings and specific embodiments:

[0035] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0036] Figure 2 It is a schematic diagram of the structure of a part of the curling mechanism of the present invention;

[0037] Figure 3 It is a structural schematic diagram of the support plate of the present invention;

[0038] Figure 4 It is a structural schematic diagram of the impact mechanism of the present invention;

[0039] Figure 5 It is a structural schematic diagram of the drive disk of the present invention;

[0040] Figure 6 It is a structural schematic diagram of the linkage mechanism of the present invention;

[0041] Figure 7 It is a structural schematic diagram of the bottom of the linkage mechanism of the present invention;

[0042] Figure 8 It is a schematic diagram of the ball matching of the present invention.

[0043] In the figure: 1, mounting plate; 2, curling mechanism; 3, impact mechanism; 4, linkage mechanism; 5, ball bearing; 201, support plate; 2011, strip hole; 202, hydraulic cylinder; 2021, first connecting block; 2022, second connecting block; 203, support rod; 204, trapezoidal frame; 205, electric suction cup; 301, guide rod; 3011, arc groove; 302, mounting plate; 303, strip block; 304, impact head; 305, columnar head; 306, baffle; 307, first spring; 308, driving plate; 3081, annular notch groove; 3082, vertical groove; 3083, arc groove; 309, fixed Block; 310, electric push rod; 311, movable plate; 312, arc-shaped protrusion; 401, first U-shaped frame; 402, lifting rod; 403, lifting block; 404, second U-shaped frame; 405, first roller; 406, opening groove; 407, paddle plate; 408, second roller; 409, first rectangular plate; 410, second rectangular plate; 411, arc-shaped rod; 412, third spring; 413, connecting plate; 414, supporting plate; 415, stop bar; 416, stop rod; 417, second spring; 501, L-shaped plate; 502, movable rod; 503, limit plate; 504, movable block; 505, fourth spring. DETAILED DESCRIPTION

[0044] The following is a description of the implementation of the present invention by means of specific embodiments. Those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

[0045] See also Figures 1 to 8 . It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings in this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the present invention, so they have no substantial technical significance. Any modification of the structure, change in the proportional relationship, or adjustment of the size should still fall within the scope of the technical content disclosed by the present invention without affecting the effects and purposes that can be achieved by the present invention. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" quoted in this specification are only for the convenience of description, and are not used to limit the scope of the implementation of the present invention. Changes or adjustments in their relative relationships should also be regarded as the scope of the implementation of the present invention without substantially changing the technical content.

[0046] The present invention provides a technical solution: an integrated detection device for impact resistance and bending resistance of a liquid crystal display screen, comprising a mounting plate 1, on which a curling mechanism 2 and an impact mechanism 3 are mounted;

[0047] The curling mechanism 2 includes a plurality of support plates 201, two hydraulic cylinders 202 are installed between each two support plates 201, the bottom of the hydraulic cylinder 202 cylinder body is hinged to the two support plates 201, the telescopic end of the hydraulic cylinder 202 is hinged to two support rods 203, the two support rods 203 are hinged to two trapezoidal frames 204, the support plate 201 is used to support the liquid crystal display screen with a curved surface, a strip hole 2011 is opened in the middle of the support plate 201, and two symmetrically arranged electric suction cups 205 are inlaid in the middle of the curved surface of the support plate 201 near both ends; the hydraulic cylinder A first connecting block 2021 is fixedly arranged at the bottom of the cylinder body 202, and a first mounting groove is opened on the side wall of the support plate 201. The side walls of the first connecting block 2021 close to the two ends are hinged to the inner walls of the first mounting grooves on the two support plates 201; a second connecting block 2022 is fixedly connected to the top of the telescopic end of the hydraulic cylinder 202, and two second mounting grooves are opened at both ends of the second connecting block 2022, and the inner walls of the two second mounting grooves are hinged to the two support rods 203; a third mounting groove is opened on the trapezoidal frame 204, and the inner wall of the third mounting groove is hinged to the support rod 203.

[0048] The telescopic end of the hydraulic cylinder 202 extends, and pulls the two support rods 203 connected thereto through the second connecting block 2022. The two support rods 203 pull the two trapezoidal frames 204, and the two support plates 201 connected to the first connecting block 2021 flip around the intersection of the first connecting block 2021 and the support plate 201 as the axis.

[0049] The impact mechanism 3 includes two symmetrically arranged guide rods 301, the ends of the guide rods 301 are fixedly connected to the mounting plate 1, the outer walls of the two guide rods 301 are slidably connected with a mounting plate 302, and a plurality of fixed blocks 309 arranged in a ring array are fixedly connected to the mounting plate 302, and a plurality of strip blocks 303 are slidably connected to the side walls of the plurality of fixed blocks 309, and a plurality of strip blocks 303 are provided with a threaded head at one end away from the mounting plate 302, and the threaded head is threadedly connected to the impact head 304, and a plurality of columnar heads 305 are fixedly connected to the side walls of the plurality of strip blocks 303 at one end away from the plurality of impact heads 304, and a baffle 306 is fixedly connected to the outer wall of the strip block 303, and a first spring 307 that is tightly pressed against the baffle 306 is provided on the outer wall of the strip block 303, and the installation A rotatable driving disk 308 is installed at the center of the disk 302, and one side of the driving disk 308 is provided with an annular notch groove 3081, a vertical groove 3082 and an arc groove 3083 which are connected in sequence; the inner walls of the annular notch groove 3081, the vertical groove 3082 and the arc groove 3083 are slidably connected to the outer walls of the plurality of columnar heads 305, and the outer wall of the driving disk 308 is fixedly connected with an arc protrusion 312; a motor is fixedly installed at the center of the mounting disk 302, and the output end of the motor is axially connected to the center of the driving disk 308, an electric push rod 310 is fixedly installed on the fixed block 309, and a movable plate 311 which is slidably connected to the outer wall of the strip block 303 is fixedly connected to the telescopic end of the electric push rod 310, and the end of the first spring 307 away from the baffle 306 is pressed against the movable plate 311.

[0050] The motor drives the drive disk 308 to rotate.

[0051] The electric push rod 310 can adjust the position of the movable plate 311, thereby adjusting the initial compression amount of the first spring 307, changing the elastic force of the first spring 307 on the baffle 306, and further adjusting the impact size of the impact head 304 as needed.

[0052] A linkage mechanism 4 is installed on the mounting plate 1 and the mounting disk 302 for intermittently cooperating with the arc-shaped protrusion 312 to realize step-by-step movement of the mounting disk 302 .

[0053] The end of a support plate 201 at one end of the curling mechanism 2 is fixedly mounted on the mounting plate 1 . When the curling mechanism 2 is curled, a plurality of support plates 201 surround the outer periphery of the impact mechanism 3 , and when the impact head 304 impacts, the impact head 304 passes through the strip hole 2011 .

[0054] Both ends of the annular notch groove 3081 are respectively connected to one end of the vertical groove 3082 and the arc groove 3083 , and one end of the vertical groove 3082 and the arc groove 3083 away from the annular notch groove 3081 is connected to each other.

[0055] The linkage mechanism 4 includes a first U-shaped frame 401 with an opening direction facing downward, a lifting rod 402 is slidably connected to the top surface of the first U-shaped frame 401, a lifting block 403 that is blocked by the inner wall of the first U-shaped frame 401 is fixedly connected to the top of the lifting rod 402, a second U-shaped frame 404 is fixedly connected to the top of the lifting rod 402, the inner wall of the second U-shaped frame 404 is rotatably connected to a first roller 405 that is rollingly matched with the outer wall of the arc-shaped protrusion 312 through a pin shaft, the outer wall of the lifting block 403 located above the first U-shaped frame 401 is sleeved with a second spring 417 that is tightly pressed against the bottom of the second U-shaped frame 404, an opening groove 406 is provided at the bottom of the lifting block 403, and a dial plate 407 is rotatably connected to the inner wall of the opening groove 406 through a pin shaft, a mounting groove is provided at the bottom of the dial plate 407, and the inner wall of the mounting groove is rotatably connected to the second roller 408 through a pin shaft, and the bottom of the lifting block 403 A first rectangular plate 409 is fixedly connected, and a second rectangular plate 410 is fixedly connected to the side wall of the lifting block 403 located at the opening groove 406. The first rectangular plate 409 and the second rectangular plate 410 are fixedly connected with an arc rod 411. A through hole is provided on the dial plate 407, and the arc rod 411 movably passes through the through hole; the outer wall of the arc rod 411 located between the dial plate 407 and the second rectangular plate 410 is sleeved with a third spring 412, and the side wall of the first U-shaped frame 401 is fixedly connected with a connecting plate 413 fixedly connected to the mounting plate 302, and the linkage mechanism 4 also includes a support plate 414 fixedly connected to the mounting plate 1, the support plate 414 is located directly below the first U-shaped frame 401, and the top surface is fixedly connected with evenly arranged stop bars 415, and the top of the stop bar 415 is set in an arc, and the inner wall of the first U-shaped frame 401 is fixedly connected with a stop bar 416 that is in blocking cooperation with the dial plate 407.

[0056] When the arc-shaped protrusion 312 follows the driving disk 308 to rotate to position 4, the arc-shaped protrusion 312 presses against the first roller 405, and the lifting block 403 is pressed down through the second U-shaped frame 404, the dial plate 407 descends, the second roller 408 presses against the support plate 414, and rolls toward the stop bar 415, the dial plate 407 rotates in the opening groove 406, and the stop bar 415 limits the second roller 408, and the first U-shaped frame 401 is pushed by the dial plate 407, so that the connecting plate 413 and the mounting disk 302 move, and the arc-shaped protrusion 312 disengages from the first roller 405. Under the upward elastic force of the second spring 417 on the second U-shaped frame 404, the lifting block 403 rises, and the dial plate 407 and the second roller 408 are lifted.

[0057] Each time the driving disk 308 rotates one circle, the arc-shaped protrusion 312 cooperates with the first roller 405 once, and the mounting disk 302 moves once, and the linkage mechanism 4 cooperates with the arc-shaped protrusion 312 intermittently to realize the step-by-step movement of the mounting disk 302 .

[0058] The plurality of impact heads 304 are provided in various specifications, and the impact surfaces of the impact heads 304 of various specifications are impact surfaces of different sizes. The plurality of impact heads 304 may also adopt one specification.

[0059] The outer wall of the guide rod 301 is provided with a chamfered plane, and the chamfered plane is provided with a plurality of evenly arranged arc grooves 3011; a ball 5 elastically pressed against the arc groove 3011 is installed on the mounting plate 1, an L-shaped plate 501 is fixedly connected to the mounting plate 1, a movable rod 502 is slidably connected to the bottom of the L-shaped plate 501, a limit plate 503 is fixedly connected to the bottom of the movable rod 502 and blocked with the bottom of the L-shaped plate 501, a movable block 504 is fixedly connected to one end of the movable rod 502 away from the limit plate 503, a fourth spring 505 pressed against the movable block 504 is sleeved on the outer wall of the movable rod 502, and the ball 5 is rollingly embedded in the top of the movable block 504.

[0060] Before the arc-shaped protrusion 312 contacts the first roller 405, the ball 5 is pressed tightly in the arc-shaped groove 3011 under the action of the fourth spring 505 to prevent the impact head 304 from moving the mounting plate 302 during the impact process. When the arc-shaped protrusion 312 contacts and cooperates with the first roller 405, the mounting plate 302 moves, the guide rod 301 squeezes the ball 5, and the movable block 504 compresses the spring.

[0061] A method for detecting an integrated device for detecting impact resistance and bending resistance of a liquid crystal display screen comprises the following steps:

[0062] Step 1: unfold the curling mechanism 2, lay the flexible liquid crystal display screen on the curved surface of the support plate 201, and absorb the flexible liquid crystal display screen with the electric suction cup 205;

[0063] Step 2: The telescopic end of the hydraulic cylinder 202 is extended, and the two support rods 203 connected thereto are pulled through the second connecting block 2022, so that the two support plates 201 connected to the first connecting block 2021 are respectively turned over with the intersection of the first connecting block 2021 and the support plates 201 as the axis, thereby bending the flexible liquid crystal display screen;

[0064] When the telescopic ends of all hydraulic cylinders 202 are extended, all support plates 201 form a circle to bend the flexible liquid crystal display screen in a circle;

[0065] The telescopic end of the local hydraulic cylinder 202 is extended, thereby bending the local flexible liquid crystal display screen;

[0066] During the test, the unfolding and bending actions of the curling mechanism 2 are alternately repeated multiple times;

[0067] Step 3: After the flexible liquid crystal display screen is circularly bent, the driving disk 308 rotates clockwise, and when the cylindrical head 305 enters the vertical groove 3082 through the annular notch groove 3081, under the elastic force of the first spring 307 on the baffle 306, the impact head 304 follows the bar block 303 and is ejected toward the flexible liquid crystal display screen, and the impact head 304 impacts the flexible liquid crystal display screen;

[0068] Step 4: The cylindrical head 305 enters the arc groove 3083. The cylindrical head 305 cooperates with the arc groove 3083 to pull back the bar block 303, so that the impact head 304 is separated from the flexible liquid crystal display screen, and the cylindrical head 305 enters the annular notch groove 3081; the driving disk 308 continues to rotate, and a plurality of impact heads 304 hit the curved flexible liquid crystal display screen in turn;

[0069] In step five, the driving disk 308 rotates one circle, and the arc-shaped protrusion 312 moves to the linkage mechanism 4. Then the linkage mechanism 4 and the arc-shaped protrusion 312 cooperate intermittently to realize the step-by-step movement of the mounting disk 302, and the several impact heads 304 in the next step impact the curved flexible LCD screen in turn.

[0070] After the test of the integrated detection device for the impact resistance and bending resistance of the LCD display is completed, the flexible LCD display is observed to see if it is broken, or the flexible LCD display is powered on to see if it is normal.

[0071] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the art may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by a person of ordinary skill in the art without departing from the spirit and technical concept disclosed by the present invention shall still be covered by the claims of the present invention.

Claims

1. An integrated testing device for the impact resistance and bending resistance of a liquid crystal display screen, comprising a mounting plate (1), characterized in that: The mounting plate (1) is provided with a curling mechanism (2) and an impact mechanism (3); The curling mechanism (2) comprises a plurality of support plates (201), two hydraulic cylinders (202) are installed between every two support plates (201), the bottom of the cylinder body of the hydraulic cylinder (202) is hinged to the two support plates (201), the telescopic end of the hydraulic cylinder (202) is hinged to two support rods (203), and the two support rods (203) are hinged to two trapezoidal frames (204), one side of the support plate (201) used for supporting the liquid crystal display screen is arranged in an arc-shaped surface, a strip hole (211) is opened in the middle of the support plate (201), and two symmetrically arranged electric suction cups (205) are inlaid in the middle of the arc-shaped surface of the support plate (201) near both ends; The impact mechanism (3) comprises two symmetrically arranged guide rods (301), the outer walls of the two guide rods (301) are slidably connected with a mounting plate (302), a plurality of strip blocks (303) arranged in a ring array are movably mounted on the mounting plate (302), a plurality of impact heads (304) are mounted on one end of the plurality of strip blocks (303) away from the mounting plate (302), a plurality of columnar heads (305) are fixedly connected to the side walls of the plurality of strip blocks (303) at one end away from the plurality of impact heads (304), and a baffle (306) is fixedly connected to the outer wall of the strip block (303). The outer wall of the strip block (303) is sleeved with a first spring (307) pressed against the baffle (306); a rotatable driving disk (308) is installed at the center of the mounting disk (302); one side of the driving disk (308) is provided with an annular notch groove (3081), a vertical groove (3082) and an arc groove (3083) which are connected in sequence; the inner walls of the annular notch groove (3081), the vertical groove (3082) and the arc groove (3083) are slidably connected to the outer walls of the plurality of columnar heads (305); the outer wall of the driving disk (308) is fixedly connected with an arc protrusion (312); A linkage mechanism (4) is installed on the mounting plate (1) and the mounting disk (302), and is used to intermittently cooperate with the arc-shaped protrusion (312) to achieve step-by-step movement of the mounting disk (302).

2. The integrated detection device for impact resistance and bending resistance of a liquid crystal display screen according to claim 1, characterized in that: A first connecting block (2021) is fixedly arranged at the bottom of the cylinder body of the hydraulic cylinder (202); a first mounting groove is provided on the side wall of the support plate (201); the side walls of the first connecting block (2021) close to both ends are hinged to the inner walls of the first mounting grooves on the two support plates (201); a second connecting block (2022) is fixedly connected to the top of the telescopic end of the hydraulic cylinder (202); two second mounting grooves are provided at both ends of the second connecting block (2022); the inner walls of the two second mounting grooves are hinged to the two support rods (203); a third mounting groove is provided on the trapezoidal frame (204); the inner wall of the third mounting groove is hinged to the support rod (203).

3. The integrated detection device for impact resistance and bending resistance of a liquid crystal display screen according to claim 1, characterized in that: An end portion of a support plate (201) at one end of the curling mechanism (2) is fixedly mounted on the mounting plate (1); when the curling mechanism (2) is curled, a plurality of support plates (201) surround the outer circumference of the impact mechanism (3); and when the impact head (304) impacts, the impact head (304) passes through the strip hole (2011).

4. The integrated detection device for impact resistance and bending resistance of a liquid crystal display screen according to claim 1, characterized in that: The two ends of the annular notch groove (3081) are respectively connected to one end of the vertical groove (3082) and the arc-shaped groove (3083), and the ends of the vertical groove (3082) and the arc-shaped groove (3083) away from the annular notch groove (3081) are connected to each other.

5. The integrated detection device for impact resistance and bending resistance of a liquid crystal display screen according to claim 1, characterized in that: A motor is fixedly mounted at the center of the mounting plate (302), and the output end of the motor is axially connected to the center of the driving plate (308). A plurality of fixed blocks (309) arranged in a circular array are fixedly connected to the mounting plate (302). The strip block (303) is slidably connected to the side wall of the fixed block (309). An electric push rod (310) is fixedly mounted on the fixed block (309). A movable plate (311) slidably connected to the outer wall of the strip block (303) is fixedly connected to the telescopic end of the electric push rod (310). One end of the first spring (307) away from the baffle (306) is pressed against the movable plate (311); and the end of the guide rod (301) is fixedly connected to the mounting plate (1).

6. The integrated detection device for impact resistance and bending resistance of a liquid crystal display screen according to claim 1, characterized in that: The linkage mechanism (4) comprises a first U-shaped frame (401) with an opening facing downward, a lifting rod (402) slidably penetrates the top surface of the first U-shaped frame (401), a lifting block (403) fixedly connected to the bottom of the lifting rod (402) and blocking the inner wall of the first U-shaped frame (401), a second U-shaped frame (404) fixedly connected to the top of the lifting rod (402), and the inner wall of the second U-shaped frame (404) is rotatably connected to a first outer wall of the arc-shaped protrusion (312) through a pin shaft. The lifting block (403) is provided with a second spring (417) on its outer wall above the first U-shaped frame (401) and is tightly pressed against the bottom of the second U-shaped frame (404). The lifting block (403) is provided with an opening groove (406) at its bottom. The inner wall of the opening groove (406) is rotatably connected to a dial plate (407) via a pin. The dial plate (407) is provided with a mounting groove at its bottom. The inner wall of the mounting groove is rotatably connected to a second roller (408) via a pin. The bottom of the lifting block (403) is fixed The lifting block (403) is fixedly connected to a first rectangular plate (409); the side wall of the lifting block (403) located at the opening groove (406) is fixedly connected to a second rectangular plate (410); the first rectangular plate (409) and the second rectangular plate (410) are fixedly connected to an arc-shaped rod (411); a through hole is provided on the shifting plate (407); the arc-shaped rod (411) movably passes through the through hole; the outer wall of the arc-shaped rod (411) located between the shifting plate (407) and the second rectangular plate (410) is sleeved with a third spring (412); the first U-shaped frame The side wall of the first U-shaped frame (401) is fixedly connected to a connecting plate (413) fixedly connected to the mounting plate (302), and the linkage mechanism (4) further comprises a supporting plate (414) fixedly connected to the mounting plate (1), the supporting plate (414) being located directly below the first U-shaped frame (401), and having a top surface fixedly connected to evenly arranged stop bars (415), the top of the stop bars (415) being arranged in a circular arc, and an inner wall of the first U-shaped frame (401) is fixedly connected to a stop rod (416) that is blocked by the shift plate (407).

7. The integrated impact and bending resistance detection device for a liquid crystal display screen according to claim 1, characterized in that: The plurality of impact heads (304) are provided in various specifications, and a threaded head is provided at the end of the strip block (303), and the threaded head is threadedly connected to the impact head (304).

8. The integrated detection device for impact resistance and bending resistance of a liquid crystal display screen according to claim 1, characterized in that: The outer wall of the guide rod (301) is provided with a chamfered plane, and the chamfered plane is provided with a plurality of evenly arranged arc grooves (3011); a ball (5) elastically pressed against the arc groove (3011) is installed on the mounting plate (1); an L-shaped plate (501) is fixedly connected to the mounting plate (1); a movable rod (502) is slidably connected to the bottom of the L-shaped plate (501); a limit plate (503) is fixedly connected to the bottom of the movable rod (502) and is blocked by the bottom of the L-shaped plate (501); a movable block (504) is fixedly connected to one end of the movable rod (502) away from the limit plate (503); a fourth spring (505) pressed against the movable block (504) is sleeved on the outer wall of the movable rod (502); and the ball (5) is rollingly embedded in the top of the movable block (504).

9. A detection method for an integrated detection device for impact resistance and bending resistance of a liquid crystal display screen, characterized in that: The device for detecting the impact resistance and bending resistance of a liquid crystal display screen according to any one of claims 2 to 8 comprises the following steps: Step 1: unfold the curling mechanism (2), lay the flexible liquid crystal display screen on the curved surface of the support plate (201), and absorb the flexible liquid crystal display screen with the electric suction cup (205); Step 2: the telescopic end of the hydraulic cylinder (202) is extended, and the two support rods (203) connected thereto are pulled through the second connection block (2022), so that the two support plates (201) connected to the first connection block (2021) are respectively turned around the intersection of the first connection block (221) and the support plates (201) as the axis, thereby bending the flexible liquid crystal display screen; When the telescopic ends of all hydraulic cylinders (202) are extended, all support plates (201) are surrounded in a circle, thereby performing a circular bending on the flexible liquid crystal display screen; The telescopic end of the local hydraulic cylinder (202) is extended, thereby bending the local flexible liquid crystal display screen; During the test, the unfolding and bending actions of the curling mechanism (2) are alternately repeated multiple times; Step 3: After the flexible liquid crystal display screen is circularly bent, the driving disk (308) rotates clockwise, and when the cylindrical head (305) enters the vertical groove (3082) through the annular notch groove (3081), under the elastic force of the first spring (307) on the baffle (306), the impact head (304) follows the bar block (303) and is ejected toward the flexible liquid crystal display screen, and the impact head (304) impacts the flexible liquid crystal display screen; Step 4: the cylindrical head (305) enters the arc groove (3083), and the cylindrical head (305) cooperates with the arc groove (3083) to pull back the bar block (303), so that the impact head (304) is separated from the flexible liquid crystal display screen, and the cylindrical head (305) enters the annular notch groove (3081); the driving disk (308) continues to rotate, and a plurality of impact heads (304) impact the curved flexible liquid crystal display screen in turn; In step five, the driving disk (308) rotates one circle, and the arc-shaped protrusion (312) moves to the linkage mechanism (4). Then, the linkage mechanism (4) and the arc-shaped protrusion (312) intermittently cooperate to realize the step-by-step movement of the mounting disk (302), and the plurality of impact heads (304) in the next step impact the curved flexible liquid crystal display screen in turn.

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