Printing jig structure

Abstract

The utility model discloses a printing jig structure, which belongs to the field of mini LED (light-emitting diode) printing and solves the problem of non-uniform printing solder paste by improving the flatness of a mini LED PCB (printed circuit board) in the printing process. The device mainly comprises printing equipment, the printing equipment comprises a printing platform and a lifting platform, a jig base is arranged on the lifting platform, a printing jig is arranged on the printing platform, a groove is formed in the top face of the printing jig, a plurality of through holes I penetrating through the printing jig are formed in the groove, a limiting frame is arranged on the bottom face of the printing jig, and the limiting frame is arranged on the periphery of the through holes I; a limiting groove matched with the limiting frame is formed in the top face of the printing jig. A cavity is formed in the bottom of the jig base, and a plurality of through holes II which penetrate through the jig base and are connected with the cavity are formed in the limiting groove. The mini LED printed circuit board is mainly used for ensuring the flatness of the mini LED printed circuit board in the printing process, and the problem of uneven printing of mini LEDs is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of miniLED printing, and particularly to a printing jig structure. BACKGROUND

[0002] As a new display technology, miniLED has many advantages such as high brightness, high contrast, low power consumption, and has been widely applied and concerned in the display field. In the manufacturing process of miniLED, the printing process is one of the key links. For example, when printing the tin paste on the substrate lamp surface, the uniformity of printing directly affects the performance and quality of miniLED.

[0003] The application with the publication number CN218336582U in the prior art discloses a MiniLED board printing and patch reflow integrated carrier, which comprises a carrier plate and a top plate, and a base groove is arranged at the top end of the carrier plate. Due to the small size of the miniLED pad, the traditional printing jig cannot control the absolute level of the entire printed substrate, which easily leads to uneven tin paste in the printing process. On the other hand, the existing jig needs to cross the equipment track during printing, and the printing flatness cannot be guaranteed, which leads to uneven tin paste printing, and further leads to inconsistent Mini LED brightness, reduced stability and other problems. Therefore, there is an urgent need for a printing jig that can effectively improve the uneven printing problem of miniLED to improve the printing quality and production efficiency of miniLED. SUMMARY

[0004] The purpose of the utility model is to provide a printing jig structure, which improves the uniformity of tin paste printing by improving the flatness of the miniLED PCB board during printing, and improves the MiniLED display quality, product reliability and product production yield.

[0005] The utility model is implemented through the following technical solutions:

[0006] A printing jig structure comprises a printing device, the printing device comprises a printing platform and a lifting platform, a jig base is arranged on the lifting platform, a printing jig is arranged on the printing platform, a recess is arranged on the top surface of the printing jig, a plurality of through holes I penetrating the printing jig are arranged in the recess, a limiting frame is arranged on the bottom surface of the printing jig, and the limiting frame is arranged around the through holes I; a limiting groove matched with the limiting frame is arranged on the top surface of the printing jig; a cavity is arranged at the bottom of the jig base, and a plurality of through holes II penetrating the jig base and connected with the cavity are arranged in the limiting groove.

[0007] Further, the recess is in a rectangular shape.

[0008] Further, taking grooves I are arranged on both sides of the recess.

[0009] Further, the four corners of the groove are provided with corner protection grooves.

[0010] Further, the corner protection grooves are provided with positioning pins.

[0011] Further, the jig base is provided with a plurality of strong magnets, and the jig base is attracted to the lifting platform by the strong magnets.

[0012] Further, the two sides of the jig base are provided with taking grooves II.

[0013] Further, the printing jig is provided with steps at the upper and lower ends, which are matched with the printing platform.

[0014] Further, the material of the printing jig is aluminum alloy.

[0015] Compared with the prior art, the beneficial effects of the present application are:

[0016] The present application improves the traditional printing jig printing, and the left and right sides of the miniLED PCB board are not supported, the printing path needs to cross the equipment track, so that the flatness of the miniLED PCB board cannot be guaranteed, resulting in uneven tin paste printing. The jig base and the printing jig are combined to form a vacuum cavity, the printing equipment is turned on, the jig base and the printing jig are combined to form a vacuum cavity, the vacuum makes the miniLED PCB board adsorbed and flat on the printing jig, the left and right sides are supported, the printing path does not need to cross the equipment track on the printing jig, and the flatness of the miniLED PCB board in the printing process is ensured, which improves the uneven miniLED printing problem. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is the jig base of the present application;

[0018] Figure 2 is the left view of the jig base of the present application;

[0019] Figure 3 is the main view of the printing jig of the present application;

[0020] Figure 4 is the left view of the printing jig of the present application;

[0021] Figure 5 is the use state diagram of the present application.

[0022] In the diagram: 1. Printing fixture; 2. Groove; 3. Picking slot I; 4. Through hole I; 5. Corner guard groove; 6. Limiting frame; 7. Step; 8. Fixture base; 9. Strong magnet; 10. Limiting groove; 11. Through hole II; 12. Picking slot II; 13. Cavity; 14. Printing platform; 15. Lifting platform; 16. Positioning pin. Detailed Implementation

[0023] To enable those skilled in the art to better understand the technical solution of this utility model, the technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. Based on the embodiments in this application, other similar embodiments obtained by those skilled in the art without creative effort should all fall within the scope of protection of this application. Furthermore, the directional terms mentioned in the following embodiments, such as "up," "down," "left," and "right," are only for reference to the directions in the accompanying drawings. Therefore, the directional terms used are for illustrative purposes and not for limiting the creation of this utility model.

[0024] The present invention will be further described below with reference to the accompanying drawings.

[0025] Example 1: A printing fixture structure, such as... Figures 1-5 As shown, the printing equipment includes a printing platform 14 and a lifting platform 15. The lifting platform 15 is equipped with a fixture base 8, and the printing platform 14 is equipped with a printing fixture 1. The top surface of the printing fixture 1 has a groove 2, and the groove 2 contains several through holes I4 penetrating the printing fixture 1. The bottom surface of the printing fixture 1 has a limiting frame 6, which is positioned around the through holes I4. The top surface of the printing fixture 1 has a limiting groove 10 that mates with the limiting frame 6. The matching design of the limiting frame 6 and the limiting groove 10 ensures the alignment accuracy between the printing fixture 1 and the fixture base 8, preventing misalignment. The bottom of the fixture base 8 has a cavity 13, and the limiting groove 10 contains several through holes II11 penetrating the fixture base 8 and connecting to the cavity 13. The through-hole structure of the through holes I4 and II11 is used for vacuum adsorption, reducing the flatness of the miniLED PCB board during printing and improving printing uniformity.

[0026] Example 2: A printing fixture structure, wherein the groove 2 is rectangular; the groove 2 is provided with pick-up slots I3 on ​​both sides, which simplifies the steps of picking up and placing miniLED PCB boards and shortens the operation time; the four corners of the groove 2 are provided with corner protection slots 5, which protect the four corners of the miniLED PCB board, reduce the risk of bump damage, and extend the life of the workpiece.

[0027] The groove 2 avoids the IC surface of the miniLED PCB board, and the shape and size thereof are matched with the IC surface of the miniLED PCB board, so that the miniLED PCB board is prevented from being deformed by the cavity of the jig base 8 in the vacuum suction in the printing process, and the corner protection groove is provided with a positioning pin 16 matched with a positioning hole on the miniLED PCB board, so that the miniLED PCB board is accurately positioned on the printing jig 1. Further, three of the four corner protection grooves are provided with the positioning pin 16, so as to avoid the influence of stress deformation on the positioning accuracy.

[0028] The printing jig 1 is provided with a positioning hole matched with the printing steel mesh positioned on the upper side thereof.

[0029] The jig base 8 is provided with a plurality of strong magnets 9, and the jig base 8 is attracted to the lifting platform 15 by the strong magnets 9. The jig base 8 is provided with a taking groove II 12 on both sides.

[0030] The printing jig 1 is provided with a step 7 matched with the printing platform 14 at both upper and lower ends, and the step 7 is designed to enhance the tightness of the printing jig 1 and the platform, so as to further prevent misalignment. The material of the printing jig 1 is aluminum alloy, so as to ensure the stability and durability of the jig. The other parts are the same as those of the first embodiment.

[0031] The jig base 8 is installed on the lifting platform 15 and is attracted to the printing platform 14 of the printing equipment by the strong magnets 9, so as to ensure that the lifting platform 15 is lifted during printing, and the jig base 8 is perfectly attached to the printing jig 1 to form the vacuum cavity 13. During printing, the printing jig 1 carrying the miniLED PCB board enters from the feeding port of the printing equipment, and after being positioned by the plate stopping device of the printing equipment, the lifting platform 15 is lifted to make the jig base 8 attached to the printing platform 14 to form the vacuum cavity 13. The miniLED PCB board is adsorbed and flattened on the printing jig 1 by the vacuum device of the printing equipment. The lifting platform 15 continues to be lifted to make the printing jig 1 carrying the miniLED PCB board attached to the printing steel mesh. The scraper of the printing machine is scraped up and down on the steel mesh to complete the printing.

[0032] The printing jig structure 1 can improve the uneven printing problem of the miniLED, improve the flatness of the miniLED PCB board in the printing process, improve the uneven printing problem of the tin paste, improve the display quality, product reliability and product yield of the miniLED, reduce the production cost, and has high practical value.

[0033] The above has described the utility model in detail. The above description is only a preferred embodiment of the utility model, and cannot limit the scope of the utility model. Any equivalent changes and modifications made within the scope of the application shall still fall within the scope of the utility model.

Claims

1. A printing jig structure comprising a printing apparatus, the printing apparatus comprising a printing platform (14) and a lifting platform (15), characterized in that: The lifting platform (15) is provided with a jig base (8), and the printing platform (14) is provided with a printing jig (1); the top surface of the printing jig (1) is provided with a groove (2); a plurality of through holes I (4) penetrating through the printing jig (1) are arranged in the groove (2); the bottom surface of the printing jig (1) is provided with a limiting frame (6), and the limiting frame (6) is arranged around the through holes I (4); the top surface of the printing jig (1) is provided with a limiting groove (10) matched with the limiting frame (6); the bottom of the jig base (8) is provided with a cavity (13), and a plurality of through holes II (11) penetrating through the jig base (8) and connected with the cavity (13) are arranged in the limiting groove (10).

2. The printing jig structure according to claim 1, wherein: The groove (2) is in a rectangular shape.

3. The printing jig structure according to claim 2, wherein: The groove (2) is provided with taking grooves I (3) on both sides.

4. The printing jig structure according to claim 3, wherein: The groove (2) is provided with corner protection grooves (5) at four corners.

5. The printing jig structure according to claim 4, wherein: The corner protection grooves (5) are provided with positioning pins (16).

6. The printing jig structure according to claim 1, wherein: The jig base (8) is provided with a plurality of strong magnets (9), and the jig base (8) is attracted to the lifting platform (15) through the strong magnets (9).

7. The printing jig structure according to claim 6, wherein: The jig base (8) is provided with taking grooves II (12) on both sides.

8. The printing jig structure according to claim 1, wherein: The printing jig (1) is provided with steps (7) matched with the printing platform (14) at both ends.

9. The printing jig structure according to claim 8, wherein: The material of the printing jig (1) is aluminum alloy.

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