Positioning tool for OLED screen processing

Abstract

The utility model relates to the technical field of OLED screens, and discloses a positioning tool for OLED screen processing, which comprises a bottom plate, a positioning mold is mounted on the upper surface of the bottom plate, a negative pressure assembly is arranged at the bottom of an inner cavity of the positioning mold, and a supporting assembly, an isolation plate, a limiting frame and a leveling assembly are sequentially arranged above the negative pressure assembly from bottom to top; the negative pressure assembly comprises a piston plate and a rotating shaft; through cooperation of a leveling assembly, a supporting assembly, a negative pressure assembly and a positioning mold, the OLED screen is leveled through the leveling assembly after being placed, then the pressure intensity of a cavity between a partition plate and the supporting assembly is reduced through a piston plate by pulling a rotating shaft, the OLED screen is adsorbed and positioned through the pressure intensity difference, the supporting assembly can be jacked up during reverse operation, and therefore the OLED screen can be conveniently and rapidly positioned. And therefore, the OLED screen can be conveniently taken out, the OLED screen is prevented from being damaged by excessive force when the OLED screen is taken down due to too tight adsorption, and the positioning detection efficiency of the OLED screen is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of OLED screens, in particular to a positioning tool for processing OLED screens. Background Art

[0002] Currently, flexible display technology represented by OLED has become a new trend in the industry. Such products need to be tested to eliminate defective products and reduce the defect rate of subsequent finished products. In order to improve the detection accuracy of flexible OLED screens, the products to be tested need to be accurately positioned on the detection equipment and have a flat surface.

[0003] In the prior art, the following Chinese utility model contents are disclosed: CN209021935U discloses a flexible OLED screen positioning jig, including: a jig base, a screen positioning module disposed on the jig base, a mounting port disposed on the jig base and corresponding to the screen positioning module, a mounting plate disposed in the mounting port, a microneedle module disposed on one side of the mounting plate corresponding to the screen positioning module, and a pressure head module disposed on the other side of the mounting plate. The screen positioning module includes a porous plate to enable precise and flat positioning of the product. The microneedle module includes an FPC positioning plate, an upper needle plate, microneedles, a lower needle plate, and an adapter FPC. The microneedle module cooperates with the pressure head to realize automatic crimping and lighting of the product. The pressure head module includes a pressure head, a Y-axis cylinder, and an X-axis cylinder. The X-axis cylinder and the Y-axis cylinder can realize the up, down, left, and right movement of the pressure head. The utility model adopts porous ceramic adsorption, and the positioning is smooth and precise; the microneedle module is used in conjunction with the pressure head for crimping to realize automatic crimping and lighting of the product;

[0004] Although the above technical solution uses vacuum to enable the OLED screen to be stably adsorbed on the second positioning groove inside the screen positioning plate, it is unable to quickly pick up the OLED screen after detection. Moreover, when the OLED screen is directly picked up, there is a large amount of manual force, which causes the OLED screen to bend and curl to a large extent and be damaged. Therefore, we need to propose a positioning tool for OLED screen processing. Utility Model Content

[0005] The purpose of the present utility model is to provide a positioning tool for OLED screen processing, which is convenient for the rapid installation of the OLED screen, and at the same time, the OLED screen can be quickly leveled, thereby improving the efficiency of leveling the OLED screen, avoiding damage to the OLED screen due to excessive force, and facilitating the rapid removal of the OLED screen after inspection, so as to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a positioning tool for OLED screen processing, comprising a bottom plate, a positioning mold is installed on the upper surface of the bottom plate, a negative pressure component is arranged at the bottom of the inner cavity of the positioning mold, and a support component, an isolation plate, a limit frame and a leveling component are arranged above the negative pressure component in order from bottom to top;

[0007] The negative pressure assembly comprises a piston plate and a rotating shaft, a connecting seat for rotating connection to the rotating shaft is fixedly connected to the middle of one side of the piston plate, a limit block and a plurality of guide blocks are fixedly connected to the outer side of the rotating shaft, and a special-shaped hole for sliding connection between the limit block and the guide block is opened on one side of the positioning mold;

[0008] The support assembly includes a porous mesh plate, a sealing outer frame is arranged on the periphery of the porous mesh plate, support blocks are fixedly connected to both ends of the lower surface of the sealing outer frame, and blocks abutting against the support blocks are fixedly connected to both ends of the other side of the piston plate.

[0009] Preferably, a negative pressure cavity is formed between the isolation plate and the limiting frame, the length of the isolation plate is smaller than the length of the limiting frame, and the porous mesh plate is embedded in the inner cavity of the limiting frame.

[0010] Preferably, the upper surface of the piston plate is slidably connected to the lower surface of the isolation plate, and the horizontal cross-section of the piston plate is arranged in a convex shape.

[0011] Preferably, an upper end of one side of the abutment block and a lower end of one side of the support block are both rounded, and a rectangular hole for sliding and inserting the support block is symmetrically provided at one end of the upper surface of the limit frame.

[0012] Preferably, both ends of one side of the piston plate are fixedly connected with telescopic rods, and one end of two groups of telescopic rods are fixedly connected to one side of the inner cavity of the positioning mold.

[0013] Preferably, the leveling assembly comprises a flap, and two ends of one side of the flap are respectively fixedly connected with a first angle plate and a second angle plate, and the first angle plate is rotatably connected to one side of the positioning mold.

[0014] Preferably, multiple groups of guide rods are slidably inserted on one side of the flap, and one end of each group of guide rods is fixedly connected to a pressure plate, and the other end of each group of guide rods is fixedly connected to an adjustment plate, and a spring is sleeved on the outer side of one end of most of the guide rods close to the pressure plate.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] The utility model mainly cooperates with a leveling component, a supporting component, a negative pressure component and a positioning mold. After the OLED screen is placed, it is leveled by the leveling component, and then the piston plate reduces the pressure in the cavity between the isolation plate and the supporting component by pulling the rotating shaft, so that the OLED screen is adsorbed and positioned by the pressure difference. When operating in the reverse direction, the supporting component can be lifted up, making it easier to remove the OLED screen, avoiding excessive force when removing the OLED screen due to excessive adsorption, which may damage the OLED screen, thereby ensuring the efficiency of OLED screen positioning detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the leveling component of the utility model;

[0019] Figure 3 This is a schematic diagram of the support assembly structure of the utility model;

[0020] Figure 4 It is a schematic diagram of the structure of the negative pressure component of the utility model.

[0021] In the figure: 1. bottom plate; 2. positioning mold; 3. leveling assembly; 31. flap; 32. first angle plate; 33. second angle plate; 34. leveling plate; 35. guide rod; 36. spring; 37. pressure plate; 4. support assembly; 41. porous mesh plate; 42. sealing outer frame; 43. support block; 5. negative pressure assembly; 51. piston plate; 52. stop block; 53. telescopic rod; 54. connecting seat; 55. rotating shaft; 56. limit block; 57. guide block; 6. limit frame; 7. isolation plate. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1-4 The utility model provides a technical solution: a positioning tool for processing an OLED screen, comprising a bottom plate 1, a positioning mold 2 is installed on the upper surface of the bottom plate 1, a negative pressure component 5 is arranged at the bottom of the inner cavity of the positioning mold 2, and a support component 4, an isolation plate 7, a limit frame 6 and a leveling component 3 are arranged above the negative pressure component 5 in order from bottom to top;

[0024] The negative pressure assembly 5 includes a piston plate 51 and a rotating shaft 55. A connecting seat 54 for rotating the rotating shaft 55 is fixedly connected to the middle of one side of the piston plate 51. A limit block 56 and a plurality of guide blocks 57 are fixedly connected to the outer side of the rotating shaft 55. A special-shaped hole for sliding connection between the limit block 56 and the guide block 57 is opened on one side of the positioning mold 2.

[0025] The support assembly 4 includes a porous mesh plate 41, and a sealing outer frame 42 is arranged on the periphery of the porous mesh plate 41. Both ends of the lower surface of the sealing outer frame 42 are fixedly connected with support blocks 43, and both ends of the other side of the piston plate 51 are fixedly connected with abutment blocks 52 that abut against the support blocks 43.

[0026] A negative pressure cavity is formed between the isolation plate 7 and the limit frame 6. The length of the isolation plate 7 is smaller than that of the limit frame 6. The porous mesh plate 41 is embedded in the inner cavity of the limit frame 6. The OLED screen covers the porous mesh plate 41, thereby ensuring the airtightness of the cavity when the piston plate 51 moves, thereby facilitating the positioning of the OLED screen by pressure difference.

[0027] The upper surface of the piston plate 51 is slidably connected to the lower surface of the isolation plate 7. The horizontal cross-section of the piston plate 51 is convex-shaped. The pressure in the positioning mold 2 is regulated by moving the position of the piston plate 51, so that the OLED screen is adsorbed and positioned by the pressure difference.

[0028] The upper end of one side of the stop block 52 and the lower end of one side of the support block 43 are both rounded, and one end of the upper surface of the limit frame 6 is symmetrically provided with a rectangular hole for the support block 43 to slide and insert. The stop block 52 abuts against the support block 43 to facilitate the height adjustment of the support assembly 4, thereby facilitating the ejection of the OLED screen.

[0029] Telescopic rods 53 are fixedly connected to both ends of one side of the piston plate 51 , and one end of the two sets of telescopic rods 53 is fixedly connected to one side of the inner cavity of the positioning mold 2 , thereby improving the stability of the piston plate 51 during movement through the telescopic rods 53 .

[0030] The leveling assembly 3 includes a flap 31, and the two ends of one side of the flap 31 are respectively fixedly connected with a first angle plate 32 and a second angle plate 33. The first angle plate 32 is rotatably connected to one side of the positioning mold 2. The first angle plate 32 and the second angle plate 33 make the flap 31 parallel to the positioning mold 2 when closed, thereby facilitating the leveling of the OLED screen and simplifying the operation.

[0031] A plurality of guide rods 35 are slidably inserted on one side of the flap 31, and one end of the plurality of guide rods 35 is fixedly connected to a pressure plate 37, and the other end of the plurality of guide rods 35 is fixedly connected to an adjustment plate 34. A spring 36 is sleeved on the outer side of one end of most guide rods 35 close to the pressure plate 37. The spring 36 facilitates the resetting of the pressure plate 37 to prevent the adjustment plate 34 from falling quickly when the flap 31 is closed, thereby preventing damage to the OLED screen.

[0032] When in use, first place the OLED screen on the support assembly 4 in the positioning mold 2, then flip the leveling assembly 3, so that the second corner plate 33 contacts the side hole of the positioning mold 2, thereby pressing the pressure plate 37 to compress the springs 36 on the multiple groups of guide rods 35, and then the guide rods 35 drive the leveling plate 34 to descend and contact the OLED screen, so that the OLED screen is flattened, and the leveling assembly 3 is reset, and the rotating shaft 55 is pulled to drive the piston plate 51 to move in the cavity between the isolation plate 7, the positioning mold 2 and the bottom plate 1, so that the porous mesh plate 41, the isolation plate 7 and the limit frame 6 are formed. The pressure in the formed cavity is reduced, so that the external pressure presses the OLED screen, and the OLED screen is adsorbed and positioned by the pressure difference. The rotating shaft 55 is rotated to make the limit block 56 contact with the positioning mold 2, so as to fix the position of the piston plate 51, so as to facilitate the detection of the OLED screen. After the detection is completed, the rotating shaft 55 is rotated to make the piston plate 51 move in the opposite direction, thereby restoring the cavity pressure. At the same time, the block 52 contacts the support block 43, thereby lifting the support assembly 4, thereby facilitating the OLED screen to be ejected from the positioning mold 2 and taking out the OLED screen.

[0033] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A positioning tool for processing an OLED screen, comprising a base plate (1), characterized in that: A positioning mold (2) is installed on the upper surface of the bottom plate (1), a negative pressure component (5) is arranged at the bottom of the inner cavity of the positioning mold (2), and a support component (4), an isolation plate (7), a limit frame (6) and a leveling component (3) are arranged above the negative pressure component (5) in order from bottom to top; The negative pressure assembly (5) comprises a piston plate (51) and a rotating shaft (55); a connecting seat (54) for rotatably connecting the rotating shaft (55) is fixedly connected to the middle of one side of the piston plate (51); a limit block (56) and a plurality of guide blocks (57) are fixedly connected to the outer side of the rotating shaft (55); and a special-shaped hole for sliding connection between the limit block (56) and the guide block (57) is opened on one side of the positioning mold (2); The support assembly (4) comprises a porous mesh plate (41), a sealing outer frame (42) is arranged on the periphery of the porous mesh plate (41), both ends of the lower surface of the sealing outer frame (42) are fixedly connected to support blocks (43), and both ends of the other side of the piston plate (51) are fixedly connected to abutment blocks (52) that abut against the support blocks (43).

2. The positioning tool for OLED screen processing according to claim 1, characterized in that: A negative pressure cavity is formed between the isolation plate (7) and the limiting frame (6); the length of the isolation plate (7) is smaller than the length of the limiting frame (6); and the porous mesh plate (41) is embedded in the inner cavity of the limiting frame (6).

3. The positioning tool for OLED screen processing according to claim 2, characterized in that: The upper surface of the piston plate (51) is slidably connected to the lower surface of the isolation plate (7), and the horizontal cross section of the piston plate (51) is arranged in a convex shape.

4. The positioning tool for OLED screen processing according to claim 3, characterized in that: The upper end of one side of the stop block (52) and the lower end of one side of the support block (43) are both rounded, and one end of the upper surface of the limit frame (6) is symmetrically provided with a rectangular hole for the support block (43) to slide and insert.

5. The positioning tool for OLED screen processing according to claim 4, characterized in that: Both ends of one side of the piston plate (51) are fixedly connected to telescopic rods (53), and one end of two groups of telescopic rods (53) are fixedly connected to one side of the inner cavity of the positioning mold (2).

6. The positioning tool for OLED screen processing according to claim 5, characterized in that: The leveling assembly (3) comprises a flap (31), and two ends of one side of the flap (31) are respectively fixedly connected to a first angle plate (32) and a second angle plate (33), and the first angle plate (32) is rotatably connected to one side of the positioning mold (2).

7. The positioning tool for OLED screen processing according to claim 6, characterized in that: A plurality of guide rods (35) are slidably inserted on one side of the flap (31), and one end of each of the plurality of guide rods (35) is fixedly connected to a pressure plate (37), and the other end of each of the plurality of guide rods (35) is fixedly connected to an adjustment plate (34), and a spring (36) is sleeved on the outer side of one end of most of the guide rods (35) close to the pressure plate (37).

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