Detection device for liquid crystal display screen processing

Abstract

The utility model relates to a detection device for liquid crystal display screen processing, which comprises a base and an extrusion head, two sides of the base are respectively provided with a supporting seat and a supporting plate which is arranged between the two supporting seats and is driven by a hydraulic rod I. One supporting seat is provided with a limiting strip, the other supporting seat is provided with a locking mechanism, two sides of the base are also provided with vertical plates, and the vertical plates are arranged on the two sides of the base. Wherein a lead screw and a sliding rod which penetrate through the sliding seat are arranged between the two groups of vertical plates, the lead screw is driven by a motor, a hydraulic rod II is arranged on the front side of the sliding seat, an output shaft of the hydraulic rod II is connected with a mounting seat, an electric push rod is arranged on the mounting seat, a sleeve is arranged on an output shaft of the electric push rod, a pressure sensor is arranged at the top in the sleeve, and the pressure sensor is connected with the hydraulic rod II. A pressure sensor is arranged in the sleeve, a fixing block is arranged in the sleeve below the pressure sensor, the fixing block is connected with the extrusion head, a plurality of sets of sliding grooves I are axially formed in the outer wall of the fixing block, and bolts extending into the sliding grooves I are connected to the side wall of the sleeve in a threaded mode. The device is simple in structure and convenient to use.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of display screen processing, in particular to a detection device for liquid crystal display screen processing. BACKGROUND

[0002] In the process of producing high-definition display screens, the hardness of the display screens needs to be detected so that display screens with unqualified hardness can be screened out, avoiding unqualified products flowing into the market and causing the display screens to be unable to be used normally. Most of the current detection devices use a detection head to press the display screen, and the detection result is obtained by observing and the value of the pressure sensor. The detection of the hardness of the display screen needs to go through multiple detection methods, such as bending detection and hardness testing under the condition of whether there is support at the bottom. However, most of the existing detection devices cannot adapt to multiple detection methods.

[0003] Therefore, there is a hardness detection device for LCD liquid crystal display screen processing with patent number CN217084537U. This device solves the above problems, but also has the following defects, such as: it moves the display screen to detect different areas of the display screen, but the display screen is large and inconvenient to move, and frequent movement can also damage the end face. SUMMARY

[0004] The purpose of the present application is to provide a detection device for liquid crystal display screen processing.

[0005] The technical problem of the present application is mainly solved by the following technical scheme:

[0006] A detection device for liquid crystal display screen processing, comprising a base and an extrusion head driven by an electric push rod, the base is provided with a support seat on both sides and a support plate suspended between the two groups of support seats driven by a hydraulic rod I, one group of support seats is provided with a limiting strip, and the other group of support seats is provided with a locking mechanism, the base is also provided with a vertical plate on both sides, a lead screw and a slide rod passing through a slide are arranged between the two groups of vertical plates, the lead screw is driven by a motor, a hydraulic rod II is arranged on the front side of the slide, the output shaft of the hydraulic rod II is connected with the mounting seat on the rear side of the slide, an electric push rod is arranged on the mounting seat, a sleeve is arranged on the output shaft of the electric push rod, a pressure sensor is arranged at the top of the sleeve, a fixed block is arranged in the sleeve below the pressure sensor, the fixed block is fixedly connected with the extrusion head below the sleeve, a plurality of slide grooves I are arranged on the outer wall of the fixed block in the sleeve, and a screw is screwed on the side wall of the sleeve, the end of which extends to the top of the slide groove I.

[0007] Preferably, the locking mechanism comprises a strip-shaped slot arranged at the top of the corresponding support base, the bottom of the strip-shaped slot is provided with a sliding groove II along the length direction of the strip-shaped slot, the strip-shaped slot is arranged in parallel with the screw rod, a plurality of groups of square rods are arranged in the strip-shaped slot along the length direction of the strip-shaped slot, a locking plate extending to the outside of the top of the strip-shaped slot is further arranged in the strip-shaped slot, a square hole for the square rod to pass through is arranged on the locking plate, a spring sheathed on the square rod and a protrusion below the square rod are respectively arranged in the strip-shaped slot on the two sides of the locking plate, the protrusion is arranged on the same side as the support plate, the bottom end of the protrusion extends into the sliding groove II and is matched in size with the sliding groove II, a screw rod passing through the screw hole on the protrusion is arranged in the sliding groove II, one end of the screw rod extends to the outside of the support base and is provided with a handle, and a bearing fixing the screw rod is arranged on the side wall of the sliding groove II.

[0008] Preferably, the top end of the support plate is arranged flush with the top end surface of the support base, the output shaft of the hydraulic rod I is fixedly connected to the middle of the bottom of the support plate, and the hydraulic rod I is fixed on the base.

[0009] Preferably, the fixing block is matched in size with the size of the internal opening of the sleeve, and the distance between the top end of the fixing block and the pressure sensor is smaller than the height of the fixing block below the sleeve.

[0010] Preferably, bearings fixing the ends of the screw rods are arranged on the vertical plates, screw holes screw-connected with the screw rods and sliding holes for the sliding rods to pass through are arranged on the sliding seats.

[0011] Preferably, the two groups of support bases are located between the two groups of vertical plates.

[0012] The present application has the advantages that the present application can move the extrusion head in the transverse and longitudinal directions to detect different regions of the display screen without adjusting the position of the display screen. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 is a structural schematic view of the present application;

[0014] Figure 2 is a sectional view of the present application;

[0015] Figure 3 is Figure 2 is an enlarged view of A in FIG. 8.

[0016] In the figure: 1, base, 2, support seat, 3, support plate, 4, hydraulic rod I, 5, limit bar, 6, locking mechanism, 61, strip groove, 62, sliding groove II, 63, square rod, 64, locking plate, 65, protruding block, 66, spring, 67, screw rod, 7, vertical plate, 8, lead screw, 9, sliding rod, 10, sliding seat, 11, motor, 12, hydraulic rod II, 13, mounting seat, 14, electric push rod, 15, sleeve, 16, pressure sensor, 17, fixed block, 18, extrusion head, 19, sliding groove I, 20, bolt. DETAILED DESCRIPTION

[0017] The technical solutions of the present application will be further described in detail below through examples, and combined with the accompanying drawings. Figures 1-3

[0018] A detection device for processing liquid crystal display screens, comprising a base 1 and an extrusion head 18 driven by an electric push rod 14, the base 1 is provided with a support seat 2 on both sides and a support plate 3 suspended between the two groups of support seats 2 and driven by a hydraulic rod I 4, one of the support seats 2 is provided with a limit bar 5, and the other support seat 2 is provided with a locking mechanism 6, the top end of the support plate 3 is flush with the top end face of the support seat 2, the output shaft of the hydraulic rod I 4 is fixedly connected to the middle of the bottom of the support plate 3, and the hydraulic rod I 4 is fixed on the base 1.

[0019] The base 1 is also provided with a vertical plate 7 on both sides, the two groups of support seats 2 are located between the two groups of vertical plates 7, and the lead screw 8 and the sliding rod 9 passing through the sliding seat 10 are arranged between the two groups of vertical plates 7, the lead screw 8 is driven by the motor 11, the sliding seat 10 is provided with a hydraulic rod II 12 on the front side, the output shaft of the hydraulic rod II 12 is connected to the mounting seat 13 on the rear side of the sliding seat 10, the mounting seat 13 is provided with an electric push rod 14, the output shaft of the electric push rod 14 is provided with a sleeve 15, the pressure sensor 16 is arranged in the top of the sleeve 15, the fixed block 17 is arranged in the sleeve 15 below the pressure sensor 16, the bottom end of the fixed block 17 is fixedly connected to the extrusion head 18 below the sleeve 15, a plurality of sliding grooves I 19 are arranged on the outer wall of the fixed block 17 in the sleeve 15, and the bolt 20 extending to the top of the sliding groove I 19 is screwed on the side wall of the sleeve 15.

[0020] ​The locking mechanism 6 comprises a strip-shaped slot 61 arranged at the top of the corresponding support base 2, a sliding groove II 62 arranged at the bottom of the strip-shaped slot 61 along the length direction of the strip-shaped slot 61, the strip-shaped slot 61 is arranged in parallel with the screw rod 8, a plurality of square rods 63 are arranged in the strip-shaped slot 61 along the length direction of the strip-shaped slot 61, a locking plate 64 extending to the outside of the top of the strip-shaped slot 61 is further arranged in the strip-shaped slot 61, a square hole for the square rod 63 to pass through is arranged on the locking plate 64, a spring 66 sheathed on the square rod 63 and a protruding block 65 below the square rod 63 are respectively arranged in the strip-shaped slot 61 on the two sides of the locking plate 64, the protruding block 65 is arranged on the same side as the support plate 3, the bottom end of the protruding block 65 extends into the sliding groove II 62 and is matched in size with the sliding groove II 62, a screw rod 67 passing through the screw hole on the protruding block 65 is arranged in the sliding groove II 62, one end of the screw rod 67 extends to the outside of the support base 2 and is provided with a handle, and a bearing for fixing the screw rod 67 is arranged on the side wall of the sliding groove II 62.

[0021] The fixed block 17 is matched in size with the size of the opening in the sleeve 15, and the distance between the top end of the fixed block 17 and the pressure sensor 16 is smaller than the height of the fixed block 17 below the sleeve 15.

[0022] The vertical plate 7 is provided with a bearing for fixing the end of the screw rod 8, and the sliding seat 10 is provided with a screw hole for screwing with the screw rod 8 and a sliding hole for the sliding rod 9 to pass through.

[0023] The working principle of the present application is as follows: when in use, the hydraulic rod I 4 drives the support plate 3 to move upwards and be flush with the support base 2, and at the same time, the locking plate 64 is pulled to the right to drive it to slide on the strip-shaped slot 61 and the square rod 63, and the locking plate 64 also compresses the spring 66, at this time, the display screen can be placed on the support base 2 and the support plate 3 between the limiting strip 5 and the locking plate 64, wherein one end of the display screen abuts against the end face of the limiting strip 5, then the locking plate 64 is pushed to move to the left under the relaxation of the spring 66 and contacts the right end of the display screen, thereby realizing the locking and fixing of the display screen through the limiting strip 5 and the locking plate 64, and at the same time, the display screen is supported on a large area through the support base 2 and the support plate 3 to improve the stability, in the above process, the screw rod 67 can be rotated in the screw hole on the protruding block 65, so that the protruding block 65 can move left and right in the sliding groove II 62 and the strip-shaped slot 61, in this process, the side wall of the sliding groove II 62 clamps the protruding block 65 to prevent it from rotating with the screw rod 67, thereby realizing the adjustment of the position of the protruding block 65, so that when the locking plate 64 is finally pushed to move to the left and contacts the right end of the display screen under the driving of the spring 66, the bottom end of the locking plate 64 contacts the right end of the protruding block 65, the left moving amplitude of the locking plate 64 is limited through the protruding block 65, and the locking plate 64 is prevented from excessively moving to the left under the relaxation of the spring 66 to cause excessive extrusion force on the display screen and affect the safety of the display screen.

[0024] When the display screen is detected by point touch, the extrusion head 18 is a point touch extrusion head, and the mounting base 13, the electric push rod 14, the sleeve 15 and the extrusion head 18 are driven by the hydraulic rod II 12 to move forward and backward, so that the extrusion head 18 can cover different areas in the longitudinal direction of the display screen. At this time, the electric push rod 14 drives the sleeve 15 and the extrusion head 18 and other components to move downward and contact the end face of the display screen. At this time, the electric push rod 14 continues to stretch and push the sleeve 15 downward, so that the sleeve 15 drives the bolt 20 to slide downward on the sliding groove I 19, thereby enabling the fixed block 17 to contact the downward moving pressure sensor 16. Finally, the extrusion head 18 transmits the pressure to the pressure sensor 16 through the fixed block 17, measures the pressure data, and also drives the screw 8 to rotate in the screw hole in the sliding seat 10 by the motor 11, so as to drive the sliding seat 10 to move while driving the sliding hole to slide on the sliding rod 9. The moving sliding seat 10 drives the extrusion head 18 to move laterally through the components such as the hydraulic rod II 12, the mounting base 13, the electric push rod 14, the sleeve 15 and the extrusion head 18, so that the extrusion head 18 can cover different areas in the transverse direction of the display screen. Finally, the extrusion head can detect different areas of the display screen without moving the display screen.

[0025] When the bending resistance needs to be detected, the bolt 20 is disassembled, the extrusion head 18 and the fixed block 17 are removed from the sleeve 15, and the strip-shaped extrusion head 18 is replaced. At this time, the hydraulic rod I 4 drives the support plate 3 to move downward so that the bottom of the display screen is suspended, and then the electric push rod 14 can drive the extrusion head 18 to move downward through the components such as the sleeve 15 to test the bending resistance of the display screen.

[0026] The above describes the present application in detail, but the content described is only the preferred embodiment of the present application, and cannot be considered as limiting the scope of the present application. Any equivalent changes and improvements made within the scope of the present application shall still belong to the patent scope of the present application.

Claims

1. A testing device for processing liquid crystal displays, comprising a base and an extrusion head driven by an electric push rod, characterized in that: The base has support seats on both sides and a support plate suspended between the two sets of support seats and driven by a hydraulic rod I. One set of support seats has a limit strip and the other set of support seats has a locking mechanism. Vertical plates are also provided on both sides of the base. A lead screw and a slide rod passing through the slide are provided between the two sets of vertical plates. The lead screw is driven by a motor. A hydraulic rod II is provided on the front side of the slide. The output shaft of the hydraulic rod II is connected to the mounting seat on the rear side of the slide. An electric push rod is provided on the mounting seat. A sleeve is provided on the output shaft of the electric push rod. A pressure sensor is provided at the top of the sleeve. A fixing block is provided in the sleeve below the pressure sensor. The bottom end of the fixing block is fixedly connected to the extrusion head below the sleeve. Multiple sets of sliding grooves I are axially provided on the outer wall of the fixing block inside the sleeve. Bolts extending to the top of the sliding groove I are screwed onto the side wall of the sleeve.

2. The testing device for processing liquid crystal displays according to claim 1, characterized in that: The locking mechanism includes a strip groove on the top of the corresponding support base. A sliding groove II is provided at the bottom of the strip groove along its length. The strip groove is parallel to the lead screw. Multiple sets of square rods are provided in the strip groove along its length. A locking plate extending to the outer side of the top of the strip groove is also provided in the strip groove. A square hole for the square rod to pass through is provided on the locking plate. Springs sleeved on the square rods and protrusions located below the square rods are respectively provided in the strip grooves on both sides of the locking plate. The protrusions are provided on the same side as the support plate. The bottom end of the protrusions extends into the sliding groove II and is adapted to its size. A screw rod passing through the screw hole on the protrusion is provided in the sliding groove II. One end of the screw rod extends to the outer side of the support base and is equipped with a handle. A bearing for fixing the screw rod is provided on the side wall of the sliding groove II.

3. The testing device for liquid crystal display screen processing according to claim 1, characterized in that: The top of the support plate is flush with the top surface of the support base, the output shaft of the hydraulic rod I is fixedly connected to the middle of the bottom of the support plate, and the hydraulic rod I is fixed on the base.

4. The testing device for processing liquid crystal displays according to claim 1, characterized in that: The size of the fixing block is adapted to the size of the opening inside the sleeve, and the distance between the top of the fixing block and the pressure sensor is less than the height of the fixing block below the sleeve.

5. The testing device for liquid crystal display screen processing according to claim 1, characterized in that: The vertical plate is provided with a bearing for fixing the end of the lead screw, and the slide block is provided with a screw hole for screwing the lead screw and a sliding hole for the slide rod to pass through.

6. The testing device for processing liquid crystal displays according to claim 1, characterized in that: Two sets of support seats are located between two sets of vertical plates.

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