CN113777812A

CN113777812A - Testing arrangement is used in production of LCD display screen

Info

Publication number: CN113777812A
Application number: CN202110921004.3A
Authority: CN
Inventors: 张国进; 刘飞
Original assignee: Sunoptic Technology Co ltd
Current assignee: Sunoptic Technology Co ltd
Priority date: 2021-08-11
Filing date: 2021-08-11
Publication date: 2021-12-10
Anticipated expiration: 2041-08-11
Also published as: CN113777812B

Abstract

The invention discloses a testing device for LCD (liquid crystal display) screen production, which relates to the field of LCD screen production and comprises a workbench, wherein a fixed frame is arranged at the top of the workbench and is movably connected with the workbench, a hydraulic cylinder is fixedly arranged at the top end of the fixed frame, a movable end of the hydraulic cylinder is connected with a pressing plate, the pressing plate is connected with the inner side wall of the fixed frame in a sliding manner, triangular supports are arranged on the surfaces of two ends of the workbench, clamping devices are arranged on the surfaces of the triangular supports, a transverse moving device is arranged at the bottom of the workbench, and the triangular supports are movably connected with the workbench through the transverse moving device; the display screen is fixedly clamped by the pressing plate, and then the triangular supports on the two sides are moved inwards to enable the two ends of the display screen to tilt upwards, so that the bending degree of the display screen is detected.

Description

Testing arrangement is used in production of LCD display screen

Technical Field

The invention relates to the field of LCD display screen production, in particular to a testing device for LCD display screen production.

Background

Liquid Crystal Displays (LCDs) are used in digital watches and one type of display for many portable computers. The LCD display uses two sheets of polarized material with a liquid crystal solution between them. When current is passed through the liquid, the crystals will rearrange so that light cannot pass through them. Thus, each crystal acts like a louver, both allowing light to pass through and blocking light. Liquid Crystal Display (LCD) technology information products are now developed toward the goals of being light, thin, short, and small, and it is certainly no exception to display products having a long history in the computer periphery. Under the precondition of easy carrying and transportation, the conventional display methods such as CRT video display and LED display are all limited by the factors of too large volume or huge power consumption, which cannot meet the practical requirements of users. The development of the liquid crystal display technology is just in line with the trend of the current information products, and the user can enjoy the best visual environment no matter the advantages of right-angle display, low power consumption, small volume, zero radiation and the like.

Present liquid crystal display accomplishes the back at production, all needs carry out the detection of full aspect to the display screen, and one of them is exactly to detecting the crookedness of display screen, and current test mode is all direct to be fixed with the centre gripping of display screen both ends, then buckles to its middle part application of pressure to accomplish the test, but this kind of test mode, because both ends are less by the position area of centre gripping, make the position of centre gripping also very easily produce the fracture, thereby cause the failure that detects.

Disclosure of Invention

In order to solve the defects in the prior art, the invention aims to provide a testing device for producing an LCD display screen.

The purpose of the invention can be realized by the following technical scheme:

the utility model provides a testing arrangement is used in production of LCD display screen, includes the workstation, the top of workstation is provided with the mount, and the mount links to each other with the workstation activity, and the top fixed mounting of mount has the pneumatic cylinder, and the expansion end of pneumatic cylinder is connected with the clamp plate, and the clamp plate slides with the inside wall of mount and links to each other, and the both ends surface of workstation all is provided with the tripod, and the surface of tripod is provided with clamping device, and the bottom of workstation is provided with the sideslip device, and the tripod passes through the sideslip device and links to each other with the workstation activity.

Further, the lateral wall welding of mount has the fixed block, and the surface cover of fixed block is equipped with the small motor, and the output shaft of small motor has the driving gear, and the lateral wall bottom of workstation is provided with the trapezoidal tooth with driving gear matched with, and the driving gear meshes with the workstation mutually, and the inside wall welding of mount has spacing slider, is provided with first slide bar in the lateral wall of workstation, and spacing slider overlaps in the surface of first slide bar.

Further, the tripod includes PMKD, and PMKD's surface articulates there is the fly leaf, and clamping device is located the surface of fly leaf, is provided with the regulating plate between fly leaf and the PMKD, and the one end of regulating plate is articulated with PMKD, and the other end and the fly leaf of regulating plate slide and link to each other.

Further, clamping device includes two backup plates, and two backup plates are located the both sides of fly leaf respectively, rotate between two backup plates and are connected with the compression roller, and the both ends fixedly connected with lifting slide of compression roller, the outside bottom welding of backup plate has a supporting baseplate, and supporting baseplate's surface rotates and is connected with the lead screw, and the top of lead screw is provided with elevator motor, and lifting slide links to each other with the lead screw thread.

Further, the compression roller includes hollow roller, and hollow roller's inner chamber center department is provided with fixed rotating shaft, and fixed rotating shaft's surface cover is equipped with the fixed roller, and hollow roller rotates with fixed rotating shaft and links to each other, and the thorn groove has been seted up to hollow roller's inside wall, all is provided with the thorn strip around the fixed roller, and the cooperation of the inboard thorn groove of thorn strip and hollow roller.

Further, the transverse moving device comprises a bidirectional screw rod, one end of the bidirectional screw rod is provided with a driving motor, second sliding rods are arranged on two sides of the bidirectional screw rod, the surfaces of two ends of the bidirectional screw rod are connected with a limiting table in a threaded mode, the limiting table is sleeved on the surface of each second sliding rod, and the limiting table penetrates through the workbench and is connected with the tripod.

The invention has the beneficial effects that:

1. the display screen is fixedly clamped by the pressing plate, and then the triangular supports on the two sides are moved inwards to enable the two ends of the display screen to tilt upwards, so that the bending degree of the display screen is detected;

2. according to the invention, the movable pressing plate is arranged, so that different bending surfaces can be selected to detect the display screen, and the data is more complete and reliable.

Drawings

The invention will be further described with reference to the accompanying drawings.

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is an enlarged schematic view at A in FIG. 1;

FIG. 3 is a schematic view of a traversing apparatus according to the invention;

FIG. 4 is a schematic view of the structure of the clamping device of the present invention;

FIG. 5 is a schematic view of the internal structure of the press roll of the present invention.

In the figure: 1. a work table; 11. a first slide bar; 2. a fixed mount; 21. a fixed block; 22. a small motor; 23. a driving gear; 3. a hydraulic cylinder; 4. pressing a plate; 5. a tripod; 51. fixing the bottom plate; 52. a movable plate; 53. an adjusting plate; 6. a clamping device; 61. a backup plate; 62. a compression roller; 621. a hollow roll; 622. a fixed roller; 623. fixing the rotating shaft; 624. a ratchet bar; 63. a support base plate; 64. a lifting motor; 65. a lead screw; 66. a lifting slide block; 7. a traversing device; 71. a bidirectional screw; 72. a drive motor; 73. a second slide bar; 74. and a limiting table.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "opening," "upper," "lower," "thickness," "top," "middle," "length," "inner," "peripheral," and the like are used in an orientation or positional relationship that is merely for convenience in describing and simplifying the description, and do not indicate or imply that the referenced component or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be considered as limiting the present invention.

A testing device for LCD display screen production is disclosed, as shown in figure 1, comprising a workbench 1, a fixed frame 2 arranged on the top of the workbench 1, and the fixed frame 2 movably connected with the workbench 1, a hydraulic cylinder 3 fixedly arranged on the top end of the fixed frame 2, a press plate 4 connected with the movable end of the hydraulic cylinder 3, and the press plate 4 slidably connected with the inner side wall of the fixed frame 2, to place the display screen on the workbench 1, then the display screen can be fixed by the press plate 4, and the fixed surface is used as a bending surface for detection, the surfaces of the two ends of the workbench 1 are respectively provided with a tripod 5, the top surface of the tripod 5 is inclined inwards, the surface of the tripod 5 is provided with a clamping device 6, the two ends of the display screen respectively extend into from the bottom of the clamping devices 6 at the two sides and lift upwards along the top surface of the tripod 5, thereby realizing the bending detection of the display screen, the bottom of the workbench 1 is provided with a traversing device 7, and the tripod 5 is movably connected with the workbench 1 through the traversing device 7.

As shown in fig. 1 and 2, the lateral wall welding of mount 2 has fixed block 21, the surperficial cover of fixed block 21 is equipped with small motor 22, small motor 22's output shaft has driving gear 23, the lateral wall bottom of workstation 1 is provided with the trapezoidal tooth with driving gear 23 matched with, and driving gear 23 meshes with workstation 1 mutually, the inside wall welding of mount 2 has spacing slider, be provided with first slide bar 11 in the lateral wall of workstation 1, spacing slider overlaps in first slide bar 11's surface, rotation through driving gear 23, can drive mount 2 and slide on workstation 1's surface, thereby can control the position of clamp plate 4, be used for detecting under the different faces of buckling, the data of buckling of display screen.

As shown in fig. 4, the tripod 5 includes a fixed base plate 51, a movable plate 52 is hinged to a surface of the fixed base plate 51, the clamping device 6 is located on a surface of the movable plate 52, an adjusting plate 53 is disposed between the movable plate 52 and the fixed base plate 51, one end of the adjusting plate 53 is hinged to the fixed base plate 51, the other end of the adjusting plate 53 is slidably connected to the movable plate 52, and the tripod 5 can adjust an angle of the movable plate 52, so as to increase or decrease a bending force.

As shown in fig. 4, the holding device 6 includes two backup plates 61, the two backup plates 61 are respectively located on two sides of the movable plate 52, a press roller 62 is rotatably connected between the two backup plates 61, two ends of the press roller 62 are fixedly connected with lifting sliders 66, a supporting base plate 63 is welded at the bottom of the outer side of the backup plate 61, a lead screw 65 is rotatably connected to the surface of the supporting base plate 63, a lifting motor 64 is arranged at the top end of the lead screw 65, and the lifting sliders 66 are in threaded connection with the lead screw 65 for adjusting the height of the press roller 62, so that the display screen can be held.

As shown in fig. 5, pressing roller 62 includes hollow roller 621, the inner chamber center department of hollow roller 621 is provided with fixed pivot 623, the surface cover of fixed pivot 623 is equipped with fixed roller 622, and hollow roller 621 rotates with fixed pivot 623 and links to each other, the ratchet groove has been seted up to the inside wall of hollow roller 621, all be provided with ratchet 624 around fixed roller 622, and ratchet 624 cooperates with the inboard ratchet groove of hollow roller 621, through the ratchet setting, after pressing roller 62 compresses tightly the display screen, pressing roller 62 rolls along the surface of display screen, can press roller 62 toward the gyration simultaneously and move.

As shown in fig. 3, the traverse device 7 includes a bidirectional screw 71, one end of the bidirectional screw 71 is provided with a driving motor 72, two sides of the bidirectional screw 71 are provided with second sliding rods 73, different thread sections on two end surfaces of the bidirectional screw 71 are connected with a limiting table 74 through threads, the limiting table 74 is sleeved on the surface of the second sliding rod 73, and the limiting table 74 penetrates through the workbench 1 and is connected with the tripod 5.

When using, place the display screen on workstation 1, then remove mount 2 to suitable position after, promote clamp plate 4 downwards through pneumatic cylinder 3, with the display screen fixation clamp, and confirm the face of buckling, place the both ends of display screen on the surface of tripod 5, move down compression roller 62, press the post display screen with compression roller 62, adjust the inclination of fly leaf 52 earlier, thereby confirm the slope, then inwards move tripod 5, tripod 5 slides inwards, the both ends of display screen will follow fly leaf 52 perk that makes progress, thereby buckle the detection to the display screen.

In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed.

Claims

1. The utility model provides a testing arrangement is used in LCD display screen production, including workstation (1), a serial communication port, workstation (1), the top of workstation (1) is provided with mount (2), and mount (2) link to each other with workstation (1) activity, the top fixed mounting of mount (2) has pneumatic cylinder (3), the expansion end of pneumatic cylinder (3) is connected with clamp plate (4), and clamp plate (4) slide with the inside wall of mount (2) and link to each other, the both ends surface of workstation (1) all is provided with tripod (5), the surface of tripod (5) is provided with clamping device (6), the bottom of workstation (1) is provided with sideslip device (7), and tripod (5) link to each other with workstation (1) activity through sideslip device (7).

2. The testing device for the LCD display screen production according to claim 1, wherein a fixed block (21) is welded on the side wall of the fixed frame (2), a small motor (22) is sleeved on the surface of the fixed block (21), an output shaft of the small motor (22) is connected with a driving gear (23), trapezoidal teeth matched with the driving gear (23) are arranged at the bottom end of the side wall of the workbench (1), the driving gear (23) is meshed with the workbench (1), a limiting slide block is welded on the inner side wall of the fixed frame (2), a first slide rod (11) is arranged in the side wall of the workbench (1), and the limiting slide block is sleeved on the surface of the first slide rod (11).

3. The testing device for the LCD display screen production according to claim 1, wherein the tripod (5) comprises a fixed bottom plate (51), a movable plate (52) is hinged on the surface of the fixed bottom plate (51), the clamping device (6) is positioned on the surface of the movable plate (52), an adjusting plate (53) is arranged between the movable plate (52) and the fixed bottom plate (51), one end of the adjusting plate (53) is hinged with the fixed bottom plate (51), and the other end of the adjusting plate (53) is connected with the movable plate (52) in a sliding manner.

4. The testing device for the LCD display screen production according to claim 3, wherein the clamping device (6) comprises two backup plates (61), the two backup plates (61) are respectively positioned at two sides of the movable plate (52), a press roller (62) is rotatably connected between the two backup plates (61), lifting sliding blocks (66) are fixedly connected to two ends of the press roller (62), a supporting base plate (63) is welded to the bottom of the outer side of the backup plate (61), a lead screw (65) is rotatably connected to the surface of the supporting base plate (63), a lifting motor (64) is arranged at the top end of the lead screw (65), and the lifting sliding blocks (66) are in threaded connection with the lead screw (65).

5. The testing device for the LCD display screen production according to claim 4, wherein the press roller (62) comprises a hollow roller (621), a fixed rotating shaft (623) is arranged at the center of an inner cavity of the hollow roller (621), a fixed roller (622) is sleeved on the surface of the fixed rotating shaft (623), the hollow roller (621) is rotatably connected with the fixed rotating shaft (623), a ratchet groove is formed in the inner side wall of the hollow roller (621), ratchet bars (624) are arranged around the fixed roller (622), and the ratchet bars (624) are matched with the ratchet groove in the inner side of the hollow roller (621).

6. The testing device for the production of the LCD display screen according to claim 1, wherein the traversing device (7) comprises a bidirectional screw (71), one end of the bidirectional screw (71) is provided with a driving motor (72), two sides of the bidirectional screw (71) are respectively provided with a second sliding rod (73), two end surfaces of the bidirectional screw (71) are respectively in threaded connection with a limiting table (74), the limiting table (74) is sleeved on the surface of the second sliding rod (73), and the limiting table (74) penetrates through the workbench (1) to be connected with the tripod (5).