A film suction block jig

By designing a high-low step suction film block fixture and a non-uniform vacuum suction hole, the problem of insufficient adaptability of traditional fixtures was solved, realizing high-precision, low-material-consumption graphite sheet attachment, supporting automated operation, and improving production efficiency and product quality.

CN224488946UActive Publication Date: 2026-07-14SHENZHEN SANBUM OPTOELECTRONICS CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHENZHEN SANBUM OPTOELECTRONICS CO LTD
Filing Date
2025-07-29
Publication Date
2026-07-14

AI Technical Summary

Technical Problem

Traditional suction block fixtures lack flexibility in design and are difficult to adapt to different graphite sheet structures, resulting in low adhesion accuracy, easy damage and contamination of consumables, and affecting product qualification rate.

Method used

A suction block fixture was designed, which adopts a stepped structure and non-uniformly arranged vacuum suction holes, combined with a stainless steel wire mesh filter sleeve and a Torx screw head connection, to flexibly adapt to the shape of graphite sheets and prevent impurities from clogging them, and supports automated operation.

Benefits of technology

This improves the precision and efficiency of graphite sheet application, reduces material consumption and human error, and ensures product quality and production stability.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to backlight source assembly technical field especially relates to a kind of film suction block jigs, including suction block steel piece, the suction block steel piece is divided into high platform position and low platform position, the surface of high platform position is equipped with several screw holes, the screw hole is set with the distribution of four vertices of square;Vacuum inlet is arranged in the side of low platform position, the bottom of low platform position is equipped with several vacuum suction holes.This scheme film suction block jig adopts high-low step design, can flexibly adapt to different size and structure graphite sheet, significantly improve the convenience of taking material and attaching, the ingenious collocation of high platform position and low platform position not only facilitate operation, but also can effectively prevent product from being crushed in the process of adsorption, by optimizing screw hole layout and the uneven arrangement of vacuum suction hole, jig can accurately match the shape of graphite sheet, ensure that adsorption force is evenly distributed, avoid the arch or bubble problem of graphite sheet, to improve production efficiency and product quality.
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Description

Technical Field

[0001] This utility model relates to the field of backlight assembly technology, and in particular to a suction block fixture. Background Technology

[0002] As smartphones demand increasingly thinner and brighter designs, the precision and efficiency requirements for backlight assembly processes also rise. Traditional bonding methods utilize a vacuum block and nozzle combination for picking up and attaching graphite sheets. However, maintaining a perfectly consistent nozzle height is difficult, and the size and structure of the graphite sheet material can easily lead to issues such as material arching and air bubbles. Furthermore, the nozzle, being a consumable, is easily damaged, potentially causing material contamination or product pollution, thus reducing the yield rate of finished products.

[0003] Existing suction block fixtures are mostly standardized designs, lacking flexibility and unable to adapt to the application requirements of different graphite sheet structures. Therefore, there is an urgent need for a suction block fixture that can improve application accuracy, reduce material consumption, and adapt to different material structures. Utility Model Content

[0004] The purpose of this utility model is to solve the above-mentioned shortcomings in the existing technology by proposing a suction block fixture. By improving the structure of the suction block and the design of the vacuum hole, it solves the problems of low adhesion accuracy and high material cost in the traditional technology.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a suction block fixture, comprising a suction block steel component, wherein the suction block steel component is divided into a high platform and a low platform, wherein the surface of the high platform is provided with a plurality of screw holes, wherein the screw holes are distributed at the four vertices of a square.

[0006] A vacuum inlet is provided on the side of the low platform, and a number of vacuum suction holes are provided at the bottom of the low platform, with the number of vacuum suction holes connected to the vacuum inlet.

[0007] The upper end of the elevated platform is equipped with a robot connection interface.

[0008] Preferably, the diameter of the vacuum suction hole is 1 mm.

[0009] Preferably, the suction block is made of steel, and the height difference of its suction surface ranges from 0.1 mm to 1 mm.

[0010] Preferably, the vacuum inlet is fitted with a frame inside, and the inner walls of the vacuum inlet are welded and fixed at both ends, with one side of the frame closely attached to the surface of the limiting block.

[0011] Preferably, a filter sleeve is embedded in the inner side of the frame, and the filter sleeve is made of stainless steel wire mesh material.

[0012] Preferably, an installation head is welded and fixed to one end of the filter sleeve near the vacuum inlet port, and the installation head is a Torx screw head structure.

[0013] Preferably, the outer ring wall of the frame is provided with an external thread, and the inner wall of the vacuum inlet is provided with an internal thread, and the internal thread and the external thread are threaded together.

[0014] The design scheme proposed in this utility model has the following beneficial effects in application:

[0015] 1. The suction block fixture in this solution adopts a high and low step design, which can flexibly adapt to graphite sheets of different sizes and structures, significantly improving the convenience of material picking and attachment. The clever combination of high and low steps not only facilitates operation, but also effectively prevents the product from being crushed during the adsorption process. By optimizing the screw hole layout and the non-uniform arrangement of vacuum suction holes, the fixture can accurately match the shape of the graphite sheet, ensuring uniform distribution of adsorption force and avoiding problems such as arching or air bubbles in the graphite sheet, thereby improving production efficiency and product quality.

[0016] 2. As described in 1, the vacuum system design of the fixture features efficient filtration and convenient maintenance. Through the built-in stainless steel wire mesh filter sleeve, it can effectively isolate particulate dust and lint, prevent impurities from clogging the vacuum pipeline, and ensure long-term stable operation. The unique threaded connection structure and Torx screw head design make the installation and removal of the filter sleeve simple and quick, greatly reducing maintenance time and labor costs, while ensuring the cleanliness and adsorption performance of the vacuum system.

[0017] 3. As described in 2, the robot interface on the elevated platform can seamlessly connect with robotic arms or automated equipment to achieve automated material handling and bonding operations. This not only improves production efficiency but also reduces errors and labor intensity caused by manual operation. The steel material of the fixture and the design of the height and step differences further ensure the flatness of the adsorption surface and the bonding accuracy, making it suitable for graphite sheets of different thicknesses. Attached Figure Description

[0018] Figure 1 This is a front view of the suction block steel component of this utility model;

[0019] Figure 2 This is a schematic diagram of the bottom of the suction block steel component of this utility model;

[0020] Figure 3 This is a side view of the suction block steel component of this utility model;

[0021] Figure 4 This is a top view of the suction block steel component of this utility model;

[0022] Figure 5This is a schematic diagram of the internal distribution of the vacuum inlet of this utility model.

[0023] In the diagram: 1. Suction block steel component; 11. High platform position; 12. Low platform position; 13. Screw hole; 14. Vacuum inlet; 15. Vacuum suction hole; 16. Link robot interface; 1401. Frame; 1402. Limit block; 1403. Filter sleeve; 1404. Mounting head; 1405. External thread; 1406. Internal thread. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0025] Example 1

[0026] Reference Figures 1-5 A suction block fixture includes a suction block steel part 1, which is divided into a high platform 11 and a low platform 12. The surface of the high platform 11 is provided with a number of screw holes 13, which are distributed at the four vertices of a square. The high and low step design is designed to accommodate graphite sheets of different sizes and structures, improve the convenience of material picking and attaching, and prevent damage to the product.

[0027] A vacuum inlet 14 is provided on the side of the low platform 12, and a number of vacuum suction holes 15 are provided at the bottom of the low platform 12. The vacuum suction holes 15 are connected to the vacuum inlet 14. The vacuum suction holes 15 are designed to be non-uniformly arranged according to the structure of the graphite sheet material in order to achieve direct adsorption of the graphite sheet.

[0028] The upper end of the elevated platform 11 is equipped with a robot connection interface 16, which is used to connect with a robotic arm or automated equipment to realize automated material picking and attaching operations.

[0029] The vacuum suction hole 15 has a diameter of 1mm, and its arrangement is customized according to the shape and size of the graphite sheet, including but not limited to circular, rectangular or irregular arrangement, to ensure uniform distribution of adsorption force and avoid the graphite sheet from arching or producing bubbles during adsorption.

[0030] Among them, the suction block steel part 1 is made of steel, and the height difference of its adsorption surface ranges from 0.1mm to 1mm to accommodate graphite sheets of different thicknesses and ensure flatness and adhesion accuracy during adsorption.

[0031] The vacuum inlet 14 has a sliding frame 1401 inside, and limit blocks 1402 are welded and fixed at both ends of the inner wall of the vacuum inlet 14. One side of the frame 1401 is closely attached to the surface of the limit block 1402. The frame 1401 serves as a transition connection for the filter sleeve 1403. By limiting the position of the limit block 1402, the depth of the frame 1401 inside the vacuum inlet 14 can be limited, and it can be as close as possible to the port position of the vacuum inlet 14, which facilitates installation and disassembly.

[0032] The inner side of the frame 1401 is fitted with a filter sleeve 1403, which is made of stainless steel wire mesh. The filter sleeve 1403 can isolate particulate dust and lint dust adsorbed at the vacuum suction hole 15, so as to prevent impurities from accumulating and clogging the vacuum pipe during continuous operation.

[0033] The filter sleeve 1403 is welded and fixed to one end near the vacuum inlet 14. The mounting head 1404 is a Torx screw head structure. The Torx screw is used in conjunction with the mounting head 1404 to facilitate the separation and disassembly of the filter sleeve 1403 from the vacuum inlet 14.

[0034] The outer ring wall of the frame 1401 is provided with an external thread 1405, and the inner wall of the vacuum inlet 14 is provided with an internal thread 1406. The internal thread 1406 and the external thread 1405 are threaded together. When it is necessary to install or remove the filter sleeve 1403 from the vacuum inlet 14, the thread movement can be achieved by rotating the external thread 1405 and the internal thread 1406 relative to each other.

[0035] In practice

[0036] The suction block fixture of this solution forms a stepped structure through the high platform 11 and low platform 12 of the suction block steel part 1. The step difference between the high and low platforms ranges from 0.1mm to 1mm. This design can adapt to graphite sheets of different thicknesses and sizes. The surface of the high platform 11 is provided with screw holes 13 distributed at the four vertices of a square for fixing the fixture or adjusting its position. The vacuum inlet 14 opened on the side of the low platform 12 is connected to multiple vacuum suction holes 15 at the bottom. The vacuum suction force is directly applied to the graphite sheet through the non-uniformly arranged suction holes. The robot interface 16 at the upper end of the high platform 11 is connected to the robotic arm to realize automated material picking and attachment. During operation, the graphite sheet is adsorbed on the surface of the low platform 12. The supporting role of the high platform 11 can prevent damage to the edge of the graphite sheet when the robotic arm presses down. At the same time, the non-uniformly distributed vacuum suction holes 15 are customized according to the shape of the graphite sheet to ensure uniform adsorption force and avoid arching or air bubbles.

[0037] The vacuum inlet 14 of the lower platform 12 is connected to the filter sleeve 1403 through the internal sliding sleeve frame 1401. The filter sleeve 1403 is made of stainless steel wire mesh and is used to isolate the particulate dust and lint adsorbed by the vacuum suction hole 15. The frame 1401 is screwed and fixed to the inner thread 1406 of the inner wall of the vacuum inlet 14 through the external thread 1405. The limiting block 1402 is welded to both ends of the inner wall of the vacuum inlet 14 to limit the depth of the frame 1401 and make it close to the port for easy disassembly and assembly. The mounting head 1404 at one end of the filter sleeve 1403 is a Torx screw head structure, which can be quickly disassembled and cleaned with tools. During operation, the vacuum system transmits the adsorption force to the vacuum suction hole 15 through the vacuum inlet 14. The filter sleeve 1403 intercepts impurities in real time to prevent pipe blockage. The threaded connection design ensures the sealing of the filtration system and facilitates maintenance and replacement, ensuring the continuous stability of the adsorption process.

[0038] The robot interface 16 is located on the upper end of the elevated platform 11 and is rigidly connected to the robotic arm or automated equipment to achieve high-precision material picking and attachment operations. The diameter of the vacuum suction hole 15 is fixed at 1mm, but its arrangement is customized according to the shape and size of the graphite sheet. It can adopt a circular, rectangular or irregular layout to ensure that the adsorption force covers the key areas of the graphite sheet. During operation, the robotic arm controls the movement of the fixture through the interface 16. After the vacuum inlet 14 is connected to the external air source, the vacuum suction hole 15 generates a uniform adsorption force to tightly attach the graphite sheet to the surface of the lower platform 12. The screw holes 13 of the elevated platform 11 can be used with external clamps to further reinforce the position of the fixture.

[0039] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A suction block fixture, comprising a suction block steel component (1), characterized in that: The suction block steel part (1) is divided into a high platform (11) and a low platform (12). The surface of the high platform (11) is provided with a number of screw holes (13), which are arranged at the four vertices of a square. The side of the low platform (12) is provided with a vacuum inlet (14), and the bottom of the low platform (12) is provided with a plurality of vacuum suction holes (15), which are connected to the vacuum inlet (14). The upper end of the elevated platform (11) is provided with a robot connection interface (16).

2. The suction block fixture according to claim 1, characterized in that: The diameter of the vacuum suction hole (15) is 1 mm.

3. The suction block fixture according to claim 2, characterized in that: The suction block steel part (1) is made of steel, and the difference in height of its suction surface ranges from 0.1 mm to 1 mm.

4. The suction block fixture according to claim 3, characterized in that: The vacuum inlet (14) is fitted with a frame (1401) inside. Limiting blocks (1402) are also welded and fixed at both ends of the inner wall of the vacuum inlet (14). One side of the frame (1401) is closely attached to the surface of the limiting block (1402).

5. The suction block fixture according to claim 4, characterized in that: A filter sleeve (1403) is embedded in the inner side of the frame (1401), and the filter sleeve (1403) is made of stainless steel wire mesh material.

6. The suction block fixture according to claim 5, characterized in that: The filter sleeve (1403) is welded and fixed to one end near the vacuum inlet (14) port with a mounting head (1404), which is a Torx screw head structure.

7. A suction block fixture according to claim 6, characterized in that: The outer ring wall of the frame (1401) is provided with an external thread (1405), and the inner wall of the vacuum inlet (14) is provided with an internal thread (1406). The internal thread (1406) and the external thread (1405) are threaded together.