Falling resistance detection device and method for tempered film of flat-panel display

Abstract

The invention discloses a flat-panel display tempered film anti-falling performance detection device and method, and relates to the technical field of tempered film detection, and the device comprises a test bench, the top end of the test bench is fixedly connected with a support frame, the top of the support frame is rotatably connected with a support shaft, and the top end of the test bench is fixedly provided with a positioning tool; a swing ring is rotationally connected to the side wall of the top of the supporting frame; the locking mechanism is arranged at the end, close to the swing ring, of the supporting shaft. An adjusting mechanism is arranged at the position, corresponding to the middle of the supporting shaft, of the top of the supporting frame. And a driving mechanism. According to the invention, the support shaft on the support frame is matched with the swing ring to enable the anti-falling test mechanism to realize the anti-falling test of swing smashing, and the locking mechanism, the unlocking mechanism and the adjusting mechanism on the support shaft are matched, so that the automatic lower swing height of the anti-falling test mechanism can be adjusted according to test requirements; therefore, the efficiency and the quality of the anti-falling detection work of the tempered film are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of tempered film detection, and in particular to a device and method for detecting the drop resistance of a tempered film of a flat panel display. Background Art

[0002] In the production process of tempered films for flat-panel displays, drop resistance testing of tempered films for displays is a very important step. Its main purpose is to evaluate its protective capabilities in the event of accidental falls or impacts, ensuring that it can provide effective protection for mobile phone screens.

[0003] In the prior art, for example, a utility model patent with authorization announcement number CN217819808U discloses a device for testing the drop resistance of a flat-panel display tempered film, which uses a plumb bob to drop vertically under gravity to impact the tempered film, thereby achieving the purpose of testing the drop resistance of the tempered film;

[0004] However, the plumb bob in the above device can only perform impact tests at the first height, and cannot meet the impact tests under various gravitational potential energies. The test of the drop resistance of the tempered film is greatly limited, making the test data inaccurate. In addition, the plumb bob needs to be manually raised and positioned, and then manually unlocked to make the plumb bob fall to achieve the test operation. The entire operation process is cumbersome and time-consuming, and inconvenient to use.

[0005] In order to solve the above problems, a device and method for detecting the drop resistance of a flat panel display tempered film are proposed. Summary of the invention

[0006] The object of the present invention is to provide a device and method for detecting the drop resistance of a flat panel display tempered film, so as to solve the problems raised in the above-mentioned background technology.

[0007] To achieve the above object, the present invention provides the following technical solution: a device for detecting the drop resistance of a tempered film of a flat panel display, comprising:

[0008] A test bench, wherein a support frame is fixedly connected to the top of the test bench, a support shaft is rotatably connected to the top of the support frame, and a positioning fixture for positioning the tempered film is fixedly installed at the top of the test bench near the side wall of the support frame;

[0009] An anti-fall test mechanism, wherein the top side wall of the support frame is rotatably connected to a swing ring, and the anti-fall test mechanism is fixedly arranged at the bottom of the swing ring and extends downward to the side wall of the positioning fixture;

[0010] A locking mechanism, wherein the locking mechanism is arranged at the end of the support shaft close to the swing ring, and the support shaft limits the radial direction of the swing ring through the locking mechanism;

[0011] An unlocking mechanism, the unlocking mechanism is arranged at the middle of the support shaft, and an adjustment mechanism is arranged at the top of the support frame and at the corresponding position of the middle of the support shaft, the adjustment mechanism is used to adjust the position where the unlocking mechanism unlocks the locking mechanism;

[0012] The driving mechanism is arranged between the supporting frame and the supporting shaft, and is used for driving the supporting shaft to rotate.

[0013] Preferably, the locking mechanism comprises a first straight hole, the first straight hole is opened at the end position of the support shaft close to the swing ring, a key block is slidably connected in the first straight hole and moves axially along the first straight hole, and a key groove matching the key block is opened on the inner wall of the swing ring;

[0014] The driving mechanism comprises a driving motor and a gear transmission assembly. The driving motor is fixedly connected to the top of the support frame, and the rotating shaft of the driving motor is transmission-connected to the supporting shaft through the gear transmission assembly.

[0015] Preferably, the unlocking mechanism includes an installation cavity, which is opened inside the support shaft and connected to the first straight hole. A polygonal column is slidably connected to the installation cavity. A second straight hole connected to the installation cavity is opened on the outer wall of the support shaft and is located on the side away from the swing ring from the first straight hole. The key block is fixedly connected to the end of the polygonal column close to the swing ring, and the end of the polygonal column away from the swing ring is fixedly connected to a round head column, the top of the round head column is spherical and extends through the second straight hole to the outside of the support shaft, and a third spring is fixedly connected between the polygonal column and the inner wall of one side of the installation cavity.

[0016] Preferably, the adjustment mechanism includes a positioning plate, which is fixedly connected to the top of the support frame, and a handle block is slidably connected to the arc outer wall of the positioning plate. An unlocking block is fixedly connected to the side of the handle block facing the support shaft, and the bottom of the unlocking block on the side close to the round head column is inclined. A locking mechanism is provided between the handle block and the positioning plate, and the locking mechanism is used to fix the handle block at the position of the arc outer wall of the positioning plate.

[0017] Preferably, a guide ring groove is provided in the middle of one side of the positioning plate close to the unlocking block, a guide protrusion is fixedly connected to the bottom of the unlocking block close to the positioning plate, and the end of the guide protrusion is movably plugged into the inner side of the guide ring groove;

[0018] The locking mechanism includes an arc-shaped toothed plate, a gear groove is provided on one side of the positioning plate close to the unlocking block, the arc-shaped toothed plate is located at the outer periphery of the gear groove, a second spring is fixedly connected between the arc-shaped toothed plate and the handle block, and a lifting mechanism is provided between the arc-shaped toothed plate and the handle block, and the lifting mechanism is used to drive the arc-shaped toothed plate to approach the handle block.

[0019] Preferably, the lifting mechanism includes a turning handle and a driving sleeve, the turning handle is rotatably connected to the middle part of the handle block, the driving sleeve is fixedly connected to the arc-shaped tooth plate, the bottom of the outer wall of the turning handle extends to the inner side of the driving sleeve and is fixedly connected to a driving protrusion, the outer wall of the driving sleeve is provided with a guide groove, the end of the driving protrusion away from the turning handle is slidably connected to the inner side of the guide groove, and the guide groove is composed of an oblique section and a horizontal section that are interconnected.

[0020] Preferably, the anti-fall test mechanism includes a swing arm and a collision module, one end of the swing arm is fixedly connected to the outer wall of the swing ring, at least four side walls of different shapes are provided at the outer periphery of the collision module, the collision module is hollow and is slidably connected to the end of the swing arm away from the swing ring, an adjustment ring groove is provided on the inner wall of the collision module, a plurality of locking grooves are spaced apart on the inner wall of the adjustment ring groove, and an end of the swing ring close to the collision module has an inwardly recessed groove, and a mounting mechanism is provided in the groove.

[0021] Preferably, the mounting mechanism includes a locking protrusion slidably connected to the outer wall of the swing arm, a plurality of mold petals are movably connected in the groove of the swing arm, both ends of the plurality of mold petals are sleeved with holding springs, the outer walls of the plurality of mold petals are respectively fixedly connected to the locking protrusions at corresponding positions, a support mold is slidably connected between the plurality of mold petals, a positioning ring is fixedly connected in the groove of the swing arm and at the top and bottom ends of the mold petals, a fixing plate fixed to the inner wall of the swing arm groove is provided above the support mold, and a first spring is fixedly connected between the fixing plate and the support mold.

[0022] Preferably, the outer wall of the swing arm is fixedly connected to a limiting ring plate located above the collision module, a driving ring slidably connected to the swing arm is provided below the limiting ring plate, a vertical through groove connected to the groove is provided on the outer wall of the swing arm, a T-shaped rod is fixedly connected to the top of the support mold, both ends of the T-shaped rod pass through the vertical through groove and are fixedly connected to the inner wall of the driving ring, an installation slot is provided on the outer wall of the limiting ring plate, a safety block is rotatably connected in the installation slot, and the bottom of the safety block extends to the position below the limiting ring plate.

[0023] On the other hand, the present invention also provides a method for detecting the drop resistance of a flat-panel display tempered film, using the above-mentioned flat-panel display tempered film drop resistance detection device, comprising the following steps:

[0024] Step 1: Place the tempered film to be tested on a side of the positioning fixture close to the anti-fall test mechanism for positioning, and then adjust the side of the collision module toward the positioning fixture according to the test requirements, and manually lift the drive ring to drive the support mold to move up a certain distance in the mold flap, so that the mold flap is retracted a certain distance through the clamping action of the clamping spring, and the end of the locking protrusion is driven to retract from the locking groove into the adjustment ring groove, so that the collision module can be rotated without being detached from the swing arm, and then adjust the side of the collision module toward the positioning fixture by rotating it, release the lifting of the drive ring, and reinsert the support mold into the position between the multiple mold flaps, and drive the locking protrusion to insert into the locking groove at the corresponding position inside the collision module;

[0025] Step 2: adjust the lower hem height of the anti-fall test mechanism according to the gravitational potential energy required for the test, manually rotate the handle to drive the driving protrusion to rotate, cooperate with the guiding effect of the guide slot on the driving sleeve on the driving protrusion, so that the driving protrusion drives the driving sleeve to drive the arc-shaped toothed plate to move up and separate from the gear groove position on the positioning disk during the rotation of the handle, release the lock of the handle block and the unlocking block on the positioning disk, and then manually turn the handle block to drive the unlocking block to rotate and adjust to the preset radial position of the outer circumference of the support shaft, and then rotate the handle to reset the arc-shaped toothed plate to mesh with the gear groove position to achieve position locking;

[0026] Step three, turn on the power of the driving motor, so that the driving motor drives the support shaft to rotate through the gear transmission. When the support shaft drives the anti-drop test mechanism to rotate to the preset height position, the support shaft drives the round head column to rotate to the unlocking block position, and the inclined surface at the bottom of the unlocking block side wall cooperates with the arc surface at the end of the round head column to achieve the effect of driving the round head column to move axially during rotation, so that the round head column drives the key block to be pulled out of the key slot position in the swing ring through the polygonal column, and the radial locking state between the support shaft and the swing ring is released. In this way, the anti-drop test mechanism can swing downward with the support shaft as the center under the action of gravity, thereby hitting the tempered film positioned on the side wall of the positioning fixture, and completing the anti-drop test of the tempered film.

[0027] Compared with the prior art, the technical effects of the present invention are:

[0028] The present invention can enable the anti-fall test mechanism to realize the anti-fall test of swinging and hitting through the cooperation of the support shaft and the swing ring on the support frame, and utilizes the cooperation of the locking mechanism, the unlocking mechanism and the adjusting mechanism on the support shaft to adjust the automatic swing height of the anti-fall test mechanism according to the test requirements, so that the anti-fall test mechanism can automatically unlock the swing to perform the test action when it is adjusted to the test height, eliminating the need for manual adjustment of the test height of the anti-fall test mechanism and the positioning operation after the height adjustment, making the operation of the tempered film anti-fall detection more accurate and efficient, thereby improving the efficiency and quality of the tempered film anti-fall detection work. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0030] Figure 2 It is a schematic diagram of the three-dimensional structure of the test hammer of the present invention.

[0031] Figure 3 It is a front cross-sectional structural schematic diagram of the test hammer of the present invention.

[0032] Figure 4 It is a schematic diagram of a partial three-dimensional cross-sectional structure of the test hammer of the present invention.

[0033] Figure 5 It is a schematic diagram of the partial cross-sectional structure of the support shaft of the present invention from the front.

[0034] Figure 6 It is a schematic diagram of the side structure of the positioning plate of the present invention.

[0035] Figure 7 It is a schematic diagram of the side sectional structure of the unlocking block of the present invention.

[0036] Figure 8 It is a schematic diagram of the three-dimensional structure of the positioning plate of the present invention.

[0037] Fig. 9 It is a schematic diagram of the three-dimensional structure of the unlocking block of the present invention in a front section view.

[0038] In the figure: 100, test bench; 101, support frame; 102, positioning fixture; 200, anti-fall test mechanism; 201, swing arm; 202, swing ring; 203, support shaft; 204, collision module; 205, adjustment ring groove; 206, locking groove; 207, locking protrusion; 208, mold flap; 209, holding spring; 210, positioning ring; 211, supporting mold; 212, fixing plate; 213, first spring; 214, T-bar; 215, driving ring; 216, vertical through groove; 217, limit ring plate; 218, installation slot ; 219, safety block; 220, positioning plate; 221, gear groove; 222, guide ring groove; 223, unlocking block; 224, guide protrusion; 225, handle block; 226, arc-shaped tooth plate; 227, second spring; 228, drive sleeve; 229, guide slot; 230, drive protrusion; 231, handle; 232, mounting cavity; 233, polygonal column; 234, keyway; 235, key block; 236, first straight hole; 237, second straight hole; 238, round head column; 239, third spring; 240, drive motor. DETAILED DESCRIPTION

[0039] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0040] The present invention provides Figure 1-Figure 9The device for detecting the drop resistance of a tempered film of a flat-panel display shown in the figure comprises a test bench 100, a support frame 101 is fixedly connected to the top of the test bench 100, the top of the support frame 101 is in the shape of a protrusion extending in the horizontal direction of the test bench 100, a support shaft 203 is rotatably connected to the top of the support frame 101, a positioning fixture 102 for positioning the tempered film is fixedly installed at the top of the test bench 100 near the side wall of the support frame 101, a positioning groove and a clamping fixture can be configured on the side of the positioning fixture 102 near the drop resistance test mechanism 200, so that the tempered film of the flat-panel display can be firmly positioned on the positioning fixture 102; a swing ring 202 is rotatably connected to the side wall of the top of the support frame 101, and the drop resistance test mechanism 200 is fixedly arranged It is placed at the bottom of the swing ring 202 and extends downward to the side wall of the positioning fixture 102. The locking mechanism is arranged at the end of the support shaft 203 close to the swing ring 202. The support shaft 203 limits the radial direction of the swing ring 202 through the locking mechanism. The swing ring 202 realizes the radial locking limit with the support shaft 203 through the locking mechanism, so that the support shaft 203 can drive the swing ring 202 to rotate, thereby driving the anti-fall test mechanism 200 to swing to adjust the test height, so as to meet the gravitational potential energy required by the anti-fall test mechanism 200 when detecting the anti-fall property of the tempered film; the unlocking mechanism is arranged in the middle of the support shaft 203, and an adjusting mechanism is arranged at the corresponding position between the top of the support frame 101 and the middle of the support shaft 203. The adjusting mechanism is used to The unlocking mechanism is adjusted to unlock the position of the locking mechanism. The unlocking mechanism can drive the locking mechanism to separate from the swing ring 202, thereby unlocking the swing ring 202 and the support shaft 203 at the radial upper limit position, and cooperates with the adjusting mechanism to adjust the unlocking position of the unlocking mechanism in the radial direction of the support shaft 203, so that the swing ring 202 and the anti-fall test mechanism 200 can be automatically unlocked after rotating upward to the preset position, so that the anti-fall test mechanism 200 can meet the requirements of automatic swinging at positions with different gravitational potential energies, which not only saves the difficulty of manually adjusting the swing position of the anti-fall test mechanism 200, but also improves the accuracy of the swing position of the anti-fall test mechanism 200, and also saves the need to manually lock the position of the anti-fall test mechanism 200 after the anti-fall test mechanism 200 is adjusted upward. The operation makes the test position adjustment and swing test of the anti-drop test mechanism 200 more convenient, efficient and accurate, thereby helping to improve the efficiency and quality of the tempered film anti-drop test work; the driving mechanism is arranged between the support frame 101 and the support shaft 203, and the driving mechanism is used to drive the support shaft 203 to rotate. The driving mechanism includes a driving motor 240 and a gear transmission assembly. The driving motor 240 is fixedly connected to the top of the support frame 101, and the rotating shaft of the driving motor 240 is connected to the support shaft 203 through the gear transmission assembly. The driving mechanism can be composed of the driving motor 240 and the gear transmission assembly. The large and small gears in the gear transmission assembly can be matched to make the driving motor 240 stably drive the support shaft 203 to rotate.

[0041] The anti-fall test mechanism 200 includes a swing arm 201 and a collision module 204. One end of the swing arm 201 is fixedly connected to the outer wall of the swing ring 202. The outer periphery of the collision module 204 is provided with at least four side walls of different shapes. Specifically, the collision module 204 can be a four-sided cube, and the four side walls thereon can be respectively arranged in a plane shape, a spherical shape, an arc convex shape and a conical shape, so that the collision module 204 can simulate collision tests in various environments, thereby increasing the functionality of the tempered film test and improving the comprehensiveness of the tempered film anti-fall test; the collision module 204 is hollow and is connected with the The end of the swing arm 201 away from the swing ring 202 is slidably connected, the inner wall of the collision module 204 is provided with an adjustment ring groove 205, and the inner wall of the adjustment ring groove 205 is provided with a plurality of locking grooves 206 at intervals, and the end of the swing ring 202 close to the collision module 204 has an inwardly concave groove, and a mounting mechanism is provided in the groove, and the locking protrusion 207 is controlled by the mounting mechanism to be inserted into the adjustment ring groove 205 or the locking groove 206 inside the collision module 204, so that the collision module 204 can be rotated without being separated from the swing arm 201, so as to achieve the selection of the collision surface of the collision module 204;

[0042] The mounting mechanism includes a locking protrusion 207 slidably connected to the outer wall of the swing arm 201, a plurality of mold pieces 208 are movably connected in the groove of the swing arm 201, and both ends of the plurality of mold pieces 208 are sleeved with holding springs 209, and the outer walls of the plurality of mold pieces 208 are respectively fixedly connected to the locking protrusions 207 at corresponding positions, and a supporting mold 211 is slidably connected between the plurality of mold pieces 208. A fixed mold 211 is fixedly connected in the groove of the swing arm 201 and at the top and bottom ends of the mold piece 208. The support mold 211 is provided with a fixing plate 212 fixed to the inner wall of the groove of the swing arm 201 above the positioning ring 210, and a first spring 213 is fixedly connected between the fixing plate 212 and the support mold 211; the mold flap 208 is in an arc shape that is narrow at the top and wide at the bottom, and can automatically retract after being stretched out through the elastic tightening action of the clamping spring 209. With the support mold 211 being in a truncated cone shape that is narrow at the top and wide at the bottom, the support mold 211 can achieve horizontal expansion of multiple mold flaps 208 through lifting and lowering movements. The driving of Zhang, in conjunction with the clamping spring 209, can adjust the translation distance of the locking protrusion 207, thereby controlling the locking protrusion 207 to be inserted into the locking groove 206 or the adjusting ring groove 205. When the locking protrusion 207 is located in the locking groove 206, the collision module 204 cannot rotate on the swing arm 201, and when the end of the locking protrusion 207 withdraws from the locking groove 206 to the adjusting ring groove 205, the adjusting ring groove 205 is annularly connected, so that the collision module 204 can rotate on the swing arm 201, which is convenient for the collision module 204 to switch the collision surface. In addition, on this basis, the support mold 211 is continuously moved upward to make the multiple mold petals 208 further retracted, so that the locking protrusion 207 can be withdrawn from the adjusting ring groove 205, and the limit between the collision module 204 and the swing arm 201 is released, so that the collision module 204 can be directly pulled out and separated from the end of the swing arm 201, thereby further facilitating the disassembly and assembly of the collision module 204.

[0043] Furthermore, a limiting ring plate 217 is fixedly connected to the outer wall of the swing arm 201 and located above the collision module 204, and a driving ring 215 slidably connected to the swing arm 201 is provided below the limiting ring plate 217. A vertical through groove 216 connected to the groove is provided on the outer wall of the swing arm 201. A T-shaped rod 214 is fixedly connected to the top of the support mold 211. The two ends of the T-shaped rod 214 pass through the vertical through groove 216 and are fixedly connected to the inner wall of the driving ring 215. A mounting groove 218 is provided on the outer wall of the limiting ring plate 217. A safety block 219 is rotatably connected in the mounting groove 218. The bottom of the safety block 219 extends to the position below the limiting ring plate 217. The limiting ring plate 217 not only serves as a supporting point to facilitate the lifting of the driving ring 215, but also A rotatable safety block 219 is installed on 7 to limit the upward movement distance of the driving ring 215. Since the driving ring 215 is fixedly connected to the support mold 211 through the T-shaped rod 214, the upward movement distance of the support mold 211 can be limited, so that when the collision module 204 switches the collision surface adjustment process, the collision module 204 will not be accidentally separated from the swing arm 201 due to excessive operation, thereby increasing the safety protection of the operation. When disassembly is required, the safety block 219 only needs to be rotated to a horizontal position or a vertical position to release the limiting safety effect on the driving ring 215, so that when the driving ring 215 is pulled up to the bottom end position of the limiting ring plate 217, the collision module 204 can be unlocked, thereby increasing the practicality of the collision module 204 at the bottom of the swing arm 201.

[0044] The locking mechanism includes a first straight hole 236, which is provided at the end of the support shaft 203 close to the swing ring 202. A key block 235 is slidably connected in the first straight hole 236 and moves axially along the first straight hole 236. A key groove 234 matching the key block 235 is provided on the inner wall of the swing ring 202. The key block 235 and the key groove 234 are arranged between the support shaft 203 and the swing ring 202. The radial limiting effect of the swing ring 202 and the support shaft 203 can be achieved by inserting the key block 235 into the key groove 234. Unlocking mechanism The mounting cavity 232 includes a mounting cavity 232, which is opened inside the support shaft 203 and communicated with the first linear hole 236. A polygonal column 233 is slidably connected in the mounting cavity 232. A second linear hole 237 communicating with the mounting cavity 232 is opened on the outer wall of the support shaft 203 and is located at a side of the first linear hole 236 away from the swing ring 202. A key block 235 is fixedly connected to the end of the polygonal column 233 close to the swing ring 202. A round head column 238 is fixedly connected to the end of the polygonal column 233 away from the swing ring 202. The top of the round head column 238 is spherical and The third spring 239 is fixedly connected between the polygonal column 233 and the inner wall of the mounting cavity 232. The round-head column 238 moves in the second linear hole 237, and the key block 235 can be driven by the polygonal column 233 to move in the first linear hole 236, so that the key block 235 can be pulled out of the key slot 234 and separated, so that the support shaft 203 and the swing ring 202 can be unlocked in the radial direction, so that the support shaft 203 cannot drive the swing ring 202 to rotate, so as to achieve the support shaft 203 and the swing ring. The third spring 239 can provide the polygonal column 233 with a thrust for returning and resetting the polygonal column 233, so that after the key block 235 is pulled out from the key slot 234, the key block 235 can be automatically inserted into the key slot 234 after the support shaft 203 rotates one circle, so that after the support shaft 203 and the swing ring 202 are unlocked, they can be automatically locked under the continued rotation of the support shaft 203, without the need to manually re-lock the two in the radial direction, making the use of the detection device more practical, and realizing automatic resetting, which is convenient for the subsequent detection work;

[0045] The adjusting mechanism includes a positioning plate 220, which is fixedly connected to the top of the support frame 101. A handle block 225 is slidably connected to the circular arc outer wall position of the positioning plate 220. An unlocking block 223 is fixedly connected to the handle block 225 on the side facing the support shaft 203. The bottom of the unlocking block 223 on the side close to the round head column 238 is in the shape of an inclined surface. A locking mechanism is provided between the handle block 225 and the positioning plate 220. The locking mechanism is used to fix the handle block 225 on the circular arc outer wall position of the positioning plate 220. A guide ring groove 222 is provided in the middle of the side of the positioning plate 220 close to the unlocking block 223. A guide protrusion 224 is fixedly connected to the bottom of the unlocking block 223 close to the side of the positioning plate 220. The end of the guide protrusion 224 is movably plugged into the inner side of the guide ring groove 222. By adjusting the unlocking block 223 on the positioning plate 220 radial position, and cooperate with the bottom of the unlocking block 223 to be inclined, so that the round head column 238 can be matched, so that when the round head column 238 rotates to the unlocking block 223 position along with the support shaft 203, the inclined surface of the unlocking block 223 can drive the round head column 238 to move axially, so that the support shaft 203 and the swing ring 202 can be automatically unlocked at the preset position, so that after the swing ring 202 reaches the preset position, the gravity of the anti-fall test mechanism 200 can be used to drive the anti-fall test mechanism 200 to automatically swing down to hit the tempered film, without the need to manually adjust the rotation position of the swing arm 201 in advance, and without manual unlocking, the whole test process is more convenient and efficient, and at the same time, the influence of external force on the gravitational potential energy of the collision module 204 is reduced, and the test accuracy of the anti-fall test of the tempered film is improved;

[0046] Furthermore, the locking mechanism includes an arc-shaped toothed plate 226, a gear groove 221 is provided on one side of the positioning plate 220 close to the unlocking block 223, the arc-shaped toothed plate 226 is located at the outer periphery of the gear groove 221, a second spring 227 is fixedly connected between the arc-shaped toothed plate 226 and the handle block 225, and a lifting mechanism is provided between the arc-shaped toothed plate 226 and the handle block 225, and the lifting mechanism is used to drive the arc-shaped toothed plate 226 to approach the handle block 225; in a preferred embodiment, the lifting mechanism includes a rotating handle 231 and a driving sleeve 228, the turning handle 231 is rotatably connected to the middle of the handle block 225, the driving sleeve 228 is fixedly connected to the arc-shaped tooth plate 226, the bottom of the outer wall of the turning handle 231 extends to the inner side of the driving sleeve 228 and is fixedly connected with a driving protrusion 230, the outer wall of the driving sleeve 228 is provided with a guiding groove 229, the end of the driving protrusion 230 away from the turning handle 231 is slidably connected to the inner side of the guiding groove 229, and the guiding groove 229 is composed of an oblique section and a horizontal section that are interconnected. After the arc-shaped toothed plate 226 is meshed with the gear groove 221 on the positioning plate 220, the position locking between the handle block 225, the unlocking block 223 and the positioning plate 220 is achieved, and the positions are kept relatively fixed. At the same time, since the guide slot 229 on the driving sleeve 228 is composed of an oblique section and a horizontal section, when the turning handle 231 drives the driving protrusion 230 to rotate, the driving protrusion 230 can be used to drive the driving sleeve 228 to move up and down during the movement of the oblique section of the guiding slot 229, thereby controlling the arc-shaped toothed plate 226 to separate from the gear groove 221 to achieve the purpose of unlocking. At the same time, the horizontal section of the guiding slot 229 can play a limiting purpose, so that the driving sleeve 228 and the turning handle 231 maintain the stability of the initial position; wherein the top of the unlocking block 223 is U-shaped, the two arc-shaped toothed plates 226 are connected and fixed by a crossbeam, and the driving sleeve 228 is fixed to the top of the crossbeam to meet the stability of the driving sleeve 228 in driving the two arc-shaped toothed plates 226 to move up and down.

[0047] A method for detecting a flat panel display tempered film drop resistance detection device comprises the following steps:

[0048] Step 1: Place the tempered film to be tested on the side of the positioning fixture 102 close to the anti-fall test mechanism 200 for positioning, then adjust the side of the collision module 204 toward the positioning fixture 102 according to the test requirements, and manually lift the drive ring 215 to drive the support mold 211 to move up a certain distance in the mold flap 208, so that the mold flap 208 is retracted a certain distance through the clamping action of the clamping spring 209, and the end of the locking protrusion 207 is retracted from the locking groove 206 into the adjustment ring groove 205, so that the collision module 204 can be rotatable without being detached from the swing arm 201, and then adjust the side of the collision module 204 toward the positioning fixture 102 by rotating the collision module 204, release the lifting of the drive ring 215, and reinsert the support mold 211 into the position between the plurality of mold flaps 208, and drive the locking protrusion 207 to be inserted into the locking groove 206 at the corresponding position inside the collision module 204;

[0049] Step 2: adjust the hem height of the anti-fall test mechanism 200 according to the gravitational potential energy required for the test, manually rotate the handle 231 to drive the driving protrusion 230 to rotate, cooperate with the guiding effect of the guide slot 229 on the driving sleeve 228 on the driving protrusion 230, so that the driving protrusion 230 rotates with the handle 231, drives the driving sleeve 228 to drive the arc gear plate 226 to move up and separate from the gear groove 221 on the positioning disk 220, releases the lock of the handle block 225 and the unlocking block 223 on the positioning disk 220, and then manually toggles the handle block 225 to drive the unlocking block 223 to rotate and adjust to the preset radial position of the outer circumference of the support shaft 203, and then rotates the handle 231 to reset the arc gear plate 226 to engage with the gear groove 221 to achieve position locking;

[0050] Step three, turn on the power of the driving motor 240, so that the driving motor 240 drives the support shaft 203 to rotate through the gear transmission part. When the support shaft 203 drives the anti-fall test mechanism 200 to rotate to the preset height position, the support shaft 203 drives the round head column 238 to rotate to the position of the unlocking block 223. The inclined surface at the bottom of the side wall of the unlocking block 223 cooperates with the arc surface at the end of the round head column 238 to achieve the effect of driving the round head column 238 to move axially during rotation, so that the round head column 238 drives the key block 235 to be pulled out from the key slot 234 position in the swing ring 202 through the polygonal column 233, and the radial locking state between the support shaft 203 and the swing ring 202 is released. In this way, the anti-fall test mechanism 200 can swing downward with the support shaft 203 as the center under the action of gravity, thereby hitting the tempered film positioned at the side wall position of the positioning fixture 102, and completing the anti-fall test of the tempered film.

[0051] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A device for detecting the drop resistance of a flat panel display tempered film, characterized in that: include: A test bench (100), wherein a support frame (101) is fixedly connected to the top of the test bench (100), a support shaft (203) is rotatably connected to the top of the support frame (101), and a positioning fixture (102) for positioning the tempered film is fixedly installed at the top of the test bench (100) near the side wall of the support frame (101); An anti-fall test mechanism (200), wherein the top side wall of the support frame (101) is rotatably connected to a swing ring (202), and the anti-fall test mechanism (200) is fixedly arranged at the bottom of the swing ring (202) and extends downward to the side wall of the positioning fixture (102); A locking mechanism, the locking mechanism being arranged at an end of the support shaft (203) close to the swing ring (202), and the support shaft (203) limits the radial direction of the swing ring (202) through the locking mechanism; An unlocking mechanism, the unlocking mechanism being arranged at a middle position of the support shaft (203), an adjusting mechanism being arranged at a position corresponding to the middle position of the support shaft (203) and the top of the support frame (101), the adjusting mechanism being used to adjust a position at which the unlocking mechanism unlocks the locking mechanism; A driving mechanism is provided between the support frame (101) and the support shaft (203), and is used to drive the support shaft (203) to rotate.

2. A device for detecting the drop resistance of a flat panel display tempered film according to claim 1, characterized in that: The locking mechanism comprises a first straight hole (236), the first straight hole (236) is provided at an end position of the support shaft (203) close to the swing ring (202), a key block (235) is slidably connected in the first straight hole (236) and moves axially along the first straight hole (236), and a key groove (234) matching the key block (235) is provided on the inner wall of the swing ring (202); The driving mechanism comprises a driving motor (240) and a gear transmission assembly; the driving motor (240) is fixedly connected to the top of the support frame (101); and the rotating shaft of the driving motor (240) is drivingly connected to the support shaft (203) via the gear transmission assembly.

3. A flat panel display tempered film drop resistance detection device according to claim 2, characterized in that: The unlocking mechanism comprises an installation cavity (232), wherein the installation cavity (232) is provided inside the support shaft (203) and is connected to the first linear hole (236), a polygonal column (233) is slidably connected inside the installation cavity (232), a second linear hole (237) connected to the installation cavity (232) is provided on the outer wall of the support shaft (203) and is located at a position on the side of the first linear hole (236) away from the swing ring (202), the key block (235) is fixedly connected to the end of the polygonal column (233) close to the swing ring (202), the end of the polygonal column (233) away from the swing ring (202) is fixedly connected to a round head column (238), the top of the round head column (238) is spherical and passes through the second linear hole (237) to extend to the outside of the support shaft (203), and a third spring (239) is fixedly connected between the polygonal column (233) and the inner wall of one side of the installation cavity (232).

4. A device for detecting the drop resistance of a flat panel display tempered film according to claim 3, characterized in that: The adjustment mechanism comprises a positioning plate (220), wherein the positioning plate (220) is fixedly connected to the top of the support frame (101), a handle block (225) is slidably connected to the circular arc outer wall of the positioning plate (220), an unlocking block (223) is fixedly connected to the side of the handle block (225) facing the support shaft (203), and the bottom of the unlocking block (223) on the side close to the round head column (238) is in the shape of an inclined surface, and a locking mechanism is provided between the handle block (225) and the positioning plate (220), and the locking mechanism is used to fix the handle block (225) at the circular arc outer wall of the positioning plate (220).

5. The device for detecting the drop resistance of a flat panel display tempered film according to claim 4, characterized in that: A guide ring groove (222) is provided in the middle of one side of the positioning plate (220) close to the unlocking block (223); a guide protrusion (224) is fixedly connected to the bottom of the unlocking block (223) close to the positioning plate (220); and an end of the guide protrusion (224) is movably plugged into the inner side of the guide ring groove (222); The locking mechanism comprises an arc-shaped toothed plate (226); a gear groove (221) is provided on one side of the positioning plate (220) close to the unlocking block (223); the arc-shaped toothed plate (226) is located at the outer periphery of the gear groove (221); a second spring (227) is fixedly connected between the arc-shaped toothed plate (226) and the handle block (225); and a lifting mechanism is provided between the arc-shaped toothed plate (226) and the handle block (225); the lifting mechanism is used to drive the arc-shaped toothed plate (226) to approach the handle block (225).

6. A device for detecting the drop resistance of a flat panel display tempered film according to claim 5, characterized in that: The lifting mechanism comprises a rotating handle (231) and a driving sleeve (228); the rotating handle (231) is rotatably connected to the middle part of the handle block (225); the driving sleeve (228) is fixedly connected to the arc-shaped tooth plate (226); the bottom of the outer wall of the rotating handle (231) extends to the inner side of the driving sleeve (228) and is fixedly connected to a driving protrusion (230); the outer wall of the driving sleeve (228) is provided with a guiding groove (229); the end of the driving protrusion (230) away from the rotating handle (231) is slidably connected to the inner side of the guiding groove (229); and the guiding groove (229) is composed of an oblique section and a horizontal section that are connected to each other.

7. A flat panel display tempered film drop resistance detection device according to claim 6, characterized in that: The anti-fall test mechanism (200) comprises a swing arm (201) and a collision module (204); one end of the swing arm (201) is fixedly connected to the outer wall of the swing ring (202); at least four side walls of different shapes are arranged at the outer periphery of the collision module (204); the collision module (204) is hollow and slidably connected to the end of the swing arm (201) away from the swing ring (202); an adjustment ring groove (205) is arranged on the inner wall of the collision module (204); a plurality of locking grooves (206) are arranged at intervals on the inner wall of the adjustment ring groove (205); and an end of the swing ring (202) close to the collision module (204) has an inwardly concave groove, and a mounting mechanism is arranged in the groove.

8. The device for detecting the drop resistance of a flat panel display tempered film according to claim 7, characterized in that: The mounting mechanism comprises a locking protrusion (207) slidably connected to the outer wall of the swing arm (201); a plurality of mold halves (208) are movably connected in the groove of the swing arm (201); both ends of the plurality of mold halves (208) are sleeved with a clamping spring (209); the outer walls of the plurality of mold halves (208) are respectively fixedly connected to the locking protrusions (207) at corresponding positions; a supporting mold (211) is slidably connected between the plurality of mold halves (208); a positioning ring (210) is fixedly connected in the groove of the swing arm (201) and at the top and bottom ends of the mold halves (208); a fixing plate (212) fixed to the inner wall of the groove of the swing arm (201) is provided above the supporting mold (211); a first spring (213) is fixedly connected between the fixing plate (212) and the supporting mold (211).

9. The device for detecting the drop resistance of a flat panel display tempered film according to claim 8, characterized in that: A limiting ring plate (217) is fixedly connected to the outer wall of the swing arm (201) and is located above the collision module (204); a driving ring (215) slidably connected to the swing arm (201) is provided below the limiting ring plate (217); a vertical through slot (216) communicating with the groove is provided on the outer wall of the swing arm (201); a T-shaped rod (214) is fixedly connected to the top of the support mold (211); two ends of the T-shaped rod (214) respectively pass through the vertical through slot (216) and are fixedly connected to the inner wall of the driving ring (215); an installation slot (218) is provided on the outer wall of the limiting ring plate (217); a safety block (219) is rotatably connected in the installation slot (218); and the bottom of the safety block (219) extends to the position below the limiting ring plate (217).

10. A method for detecting the drop resistance of a flat-panel display tempered film, using the flat-panel display tempered film drop resistance detection device as claimed in claim 9, characterized in that: The following steps are involved: Step 1: Place the tempered film to be tested on a side of the positioning fixture (102) close to the drop test mechanism (200) for positioning, and then adjust the side of the collision module (204) facing the positioning fixture (102) according to the test requirements, and manually lift the drive ring (215) to drive the support mold (211) to move up a certain distance in the mold flap (208), so that the mold flap (208) is retracted a certain distance through the clamping action of the clamping spring (209), and the end of the locking protrusion (207) is driven from the locking groove ( 206) is retracted into the adjustment ring groove (205), so that the collision module (204) can be rotated without being detached from the swing arm (201), and then the collision module (204) is rotated to adjust the side thereof toward the positioning fixture (102), and the lifting of the driving ring (215) is released, so that the supporting mold (211) is reinserted into the position between the plurality of mold petals (208), and the locking protrusion (207) is driven to be inserted into the locking groove (206) at the corresponding position inside the collision module (204); Step 2: adjusting the lower swing height of the anti-fall test mechanism (200) according to the gravitational potential energy required for the test, manually rotating the handle (231) to drive the driving protrusion (230) to rotate, cooperating with the guiding effect of the guide slot (229) on the driving sleeve (228) on the driving protrusion (230), so that the driving protrusion (230) drives the driving sleeve (228) to move up and separate from the gear groove (221) on the positioning plate (220) during the rotation of the handle (231), thereby releasing the locking of the handle block (225) and the unlocking block (223) on the positioning plate (220), and then manually toggling the handle block (225) to drive the unlocking block (223) to rotate and adjust to a preset position in the radial direction of the outer periphery of the support shaft (203), and then rotating the handle (231) to reset the arc-shaped toothed plate (226) to engage with the gear groove (221) to achieve position locking; Step 3, the power of the driving motor (240) is turned on, so that the driving motor (240) drives the support shaft (203) to rotate through the gear transmission member. When the support shaft (203) drives the anti-fall test mechanism (200) to rotate to a preset height position, the support shaft (203) drives the round head column (238) to rotate to the position of the unlocking block (223). By using the inclined surface of the bottom of the side wall of the unlocking block (223) to cooperate with the arc surface of the end of the round head column (238), the round head column (238) can be driven to rotate. The axial transverse movement causes the round head column (238) to drive the key block (235) to be withdrawn from the key slot (234) in the swing ring (202) through the polygonal column (233), thereby releasing the radial locking state between the support shaft (203) and the swing ring (202). In this way, the anti-fall test mechanism (200) can swing downward with the support shaft (203) as the center under the action of gravity, thereby hitting the tempered film positioned at the side wall of the positioning fixture (102), thereby completing the anti-fall test of the tempered film.

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