A multi-station screen positioning device

Abstract

The utility model relates to a kind of multi-station screen positioning device in screen assembling field, including linear module, the linear module is provided with support plate, multiple jigs and the sliding groove of penetrating multiple jigs are provided on the support plate, the sliding groove is provided with ejector block, one end of the ejector block is provided with ejector cylinder, the ejector cylinder is used to drive the ejector block reciprocating motion along the direction perpendicular to jig.The utility model is lifted by the ejector block in multiple jigs, thereby cooperate linear module to realize the flow of screen between multiple jigs in turn, utilize the restriction of jig to screen, ensure the positioning accuracy of screen, improve the stability of film pasting procedure, further improve the reliability and yield of overall process.

Description

Technical Field

[0001] This utility model relates to the field of screen assembly, specifically to a multi-station screen positioning device. Background Technology

[0002] Throughout the entire production process, screens face the risk of surface damage: shavings from cutting can leave scratches, solder drips during soldering can damage the display layer, and friction and collisions during transport can cause irreversible defects. All of these can reduce screen performance or even lead to scrapping, increasing production costs. In the assembly stage, proper screen surface protection is crucial for ensuring quality. Screen protectors are a simple and practical protective method, and the accuracy of the protector's positioning directly determines its protective effect. If the protector is misaligned with the screen edge, not only will some areas be unprotected, but it may also cause the film to peel or wrinkle during subsequent processes such as casing assembly and button bonding, affecting the overall sealing and aesthetics of the device.

[0003] Currently, screen protector application machines mainly use conveyor belts and rollers to position the screen protector during transport. The screen is positioned by adjusting the rollers' position on the conveyor belt. This structure is simple and quick, but its positioning accuracy is easily affected by roller wear and conveyor belt vibration, leading to deviations in the screen protector's position. In addition, there are also methods using custom-designed fixtures for screen positioning, but these fixtures are often designed for specific screen models, lacking versatility, and changing fixtures is time-consuming, impacting production efficiency. Therefore, this utility model proposes a multi-station screen positioning device to solve the above problems. Summary of the Invention

[0004] This invention provides a multi-station screen positioning device to solve the problems mentioned in the background art.

[0005] The objective of this utility model is achieved through the following means:

[0006] A multi-station screen positioning device includes a linear module, a support plate is provided on the linear module, and a plurality of fixtures and a sliding groove passing through the plurality of fixtures are provided on the support plate.

[0007] An ejector block is provided in the sliding groove, and an ejector cylinder is provided at one end of the ejector block. The ejector cylinder is used to drive the ejector block to reciprocate in a direction perpendicular to the fixture.

[0008] Furthermore, the fixture includes a positioning module and a fixing module, and the fixing module is provided with suction holes.

[0009] Furthermore, both the positioning module and the fixing module are respectively provided with a first platform and a second platform, with the second platform located on both sides of the first platform and the first platform being higher than the second platform.

[0010] Furthermore, an X-axis positioning cylinder and a Y-axis positioning cylinder are respectively provided on the two adjacent sides of the fixing module, and each of the X-axis positioning cylinder and the Y-axis positioning cylinder is provided with a push plate.

[0011] Furthermore, the push plate is arranged in an L-shape, with one end of the push plate extending toward the first platform.

[0012] Furthermore, a positioning boss is provided at the end of the push plate near the first platform.

[0013] Furthermore, the ejector cylinder is horizontally mounted below the support plate via a mounting bracket, the ejector block is vertically mounted in the sliding groove via a slider, and the ejector cylinder is connected to the ejector block via a connecting rod.

[0014] Furthermore, the ejector block has a T-shaped structure, with one end of the ejector block passing through the support plate and abutting against the mounting bracket.

[0015] This invention utilizes a liftable ejector block within multiple fixtures, which, in conjunction with a linear module, enables the sequential transfer of screens between fixtures. By using fixtures to restrict the screens, the positioning accuracy of the screens is ensured, and the stability of the film application process is improved. At the same time, by transferring the screens sequentially, the number of related fixtures is reduced, thereby lowering production costs. Attached Figure Description

[0016] Figure 1 This is a top view of a multi-station screen positioning device according to the present invention;

[0017] Figure 2 for Figure 1 Sectional view along line AA;

[0018] Figure 3 This is a front view of a multi-station screen positioning device according to the present invention;

[0019] Figure 4 This is a schematic diagram of the fixing fixture in this utility model;

[0020] Figure 5 This is a schematic diagram of the positioning fixture in this utility model;

[0021] Figure 6 This is a schematic diagram of the ejector block and ejector cylinder in this utility model;

[0022] Figure 7 This is a first usage diagram of a multi-station screen positioning device according to the present invention;

[0023] Figure 8This is a second schematic diagram of the multi-station screen positioning device of this utility model;

[0024] Figure 9 This is a third usage diagram of a multi-station screen positioning device according to the present invention;

[0025] The reference numerals in the figure are as follows: 1-Linear module, 2-Support plate, 3-Guide rail, 4-Sliding groove, 5-Ejection block, 6-Mounting bracket, 7-Jig, 701-Positioning module, 702-Fixing module, 801-X-axis positioning cylinder, 802-Y-axis positioning cylinder, 9-Push plate, 10-Positioning boss, 1101-First platform, 1102-Second platform, 12-Ejection cylinder, 13-Slider, 14-Connecting rod, 15-Suction hole, 16-Pneumatic connector, 17-Frame, 18-Screen. Detailed Implementation

[0026] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0027] In this embodiment, refer to Figure 1 - Figure 6 The present invention is a multi-station screen positioning device, wherein a support plate 2 is provided on the linear module 1, the bottom of the support plate 2 is connected to the linear module 1 and the guide rail 3, the linear module 1 and the guide rail 3 are respectively located on both sides of the support plate 2, leaving installation space for components such as the ejector cylinder 12 in the middle, the linear module 1 provides power for the movement of the support plate 2, and the support plate 2 is provided with multiple fixtures 7 and sliding grooves 4 passing through the multiple fixtures 7, the multiple fixtures 7 can perform multiple processes at the same time, improving production efficiency;

[0028] The sliding groove 4 is provided with an ejector block 5, which does not move with the support plate 2. The bottom end of the ejector block 5 is connected to an ejector cylinder 12. After the current fixture 7 completes the process, the fixture 7 moves to the position of the ejector block 5 that can cover the screens 18 on both fixtures 7. The ejector cylinder 12 is used to drive the ejector block 5 to reciprocate in a direction perpendicular to the fixture 7. The ejector block 5 is pushed out by the ejector cylinder 12, which simultaneously separates the screens 18 on the two fixtures 7 from the fixture 7. After the screens 18 are pushed out, the fixture 7 moves to the next position, the ejector block 5 is reset, and the screens 18 are placed on another fixture 7 as the ejector block 5 is reset to complete the switch of work positions. From a cost perspective, the linear module 1 of this device adopts a ball screw design, and its repeatability positioning accuracy can reach ±0.01mm, which can meet the requirements of high-precision film application.

[0029] The fixture 7 includes a positioning module 701 and a fixing module 702. The fixing module 702 is provided with an adsorption hole 15, which is located on the first platform 1101. Pneumatic connectors 16 are located below the first platform 1101, one on each side, with their openings facing away from each other to avoid interference. The pneumatic connectors 16 are connected to a vacuum pump to draw a vacuum and fix the screen 18, preventing the screen 18 from shifting during operation and thus causing defective products.

[0030] Both the positioning module 701 and the fixing module 702 are respectively provided with a first platform 1101 and a second platform 1102. The second platform 1102 is located on both sides of the first platform 1101. The first platform 1101 is higher than the second platform 1102. In actual operation, the screen 18 is placed on the first platform 1101. The height difference between the first platform 1101 and the second platform 1102 can be compatible with curved screens, improving the versatility of the device.

[0031] The fixed module 702 is provided with an X-axis positioning cylinder 801 and a Y-axis positioning cylinder 802 on its adjacent sides. Both the X-axis positioning cylinder 801 and the Y-axis positioning cylinder 802 are provided with push plates 9. After loading, on the Y-axis, the edge of the screen 18 exceeds the fixture 7. After the cylinder retracts, it drives the push plate 9 to move, and the push plate 9 will push the screen 18 to be positioned.

[0032] The push plate 9 is arranged in an L-shape, with one end of the push plate 9 extending toward the first platform 1101. The extended length facilitates the push plate 9 to push the screen 18 and complete the positioning of the screen 18.

[0033] The push plate 9 has a positioning boss 10 at one end. The positioning boss 10 can increase the contact area with the screen 18 and ensure that the push plate 9 has good contact with the screen 18 when it pushes the screen 18.

[0034] The ejector cylinder 12 is horizontally mounted below the support plate 2 via the mounting bracket 6, specifically on the frame 17. A gap is provided between the ejector cylinder 12 or the ejector block 5 and the support plate 2 to prevent vibrations generated when the support plate 2 moves from being transmitted to the ejector block 5 and affecting the positional accuracy of the screen 18. The horizontal mounting of the ejector cylinder 12 saves Z-axis mounting space. The ejector block 5 is vertically mounted in the sliding groove 4 via the slider 13, ensuring the horizontal movement of the ejector block 5 and avoiding interference with the transfer of the screen 18. The ejector cylinder 12 is connected to the ejector block 5 via a connecting rod 14 structure. The simple connecting rod 14 structure changes the direction of the cylinder's movement, allowing the ejector block 5 to reciprocate perpendicularly to the support plate 2.

[0035] The ejector block 5 has a T-shaped structure, allowing its upper end to simultaneously cover two fixtures 7, thereby enabling the transfer of screen 18 between two adjacent fixtures 7. Its lower end features a single columnar design, reducing interference with the support plate 2, minimizing its footprint, and preventing the ejector block 5 from being affected by the support plate 2, ensuring smooth operation of the device. One end of the ejector block 5 passes through the support plate 2 and abuts against the mounting bracket 6. This abutment between the end of the ejector block 5 and the mounting bracket 6 limits the position of the ejector block 5 after reset, preventing over-travel and maintaining a safe distance from the support plate 2 to avoid interference.

[0036] like Figure 7-9 As shown, the specific operation method of the multi-station screen positioning device in this embodiment is as follows: the fixture 7 includes a positioning module 701 and two fixing modules 702 arranged in sequence.

[0037] Step 1: The screen 18 to be coated is transferred to the first platform 1101 of the positioning module 701 by an external conveying device (e.g., a robotic arm), and then the screen 18 is pushed by the X-axis positioning cylinder 801 and the Y-axis positioning cylinder 802 so that the screen 18 can reach the preset position.

[0038] Step 2: The linear module 1 drives the support plate 2 and the fixture 7 on it to move backward, so that the positioning module 701 moves above the ejector block 5. At that time, the ejector cylinder 12 drives the ejector block 5 upward, lifting the screen 18 off the positioning module 701.

[0039] Step 3: The linear module 1 drives the support plate 2 and the fixture 7 on it to move forward to reset, so that the screen 18 moves relative to the fixed module 702 and the ejector block 5 is lowered at the same time, so that the screen 18 on it falls onto the first platform 1101 of the fixed module 702. Then, the screen 18 is attracted and fixed through the suction hole 15 on the fixed module 702. At that time, the screen 18 can be applied to the screen through the external film application equipment. At the same time, during the process of the screen 18 on the fixed module 702 completing the film application process, the positioning module 701 at the front end is then fed by the external conveying device.

[0040] After the film application process is completed, the device repeats steps 1-3, so that the new screen 18 on the positioning module 701 and the screen 18 that has completed the film application process can be synchronously delivered to the next fixing module 702, and the last fixing module 702 unloads the film through an external conveying device, thereby completing the transfer between the two processes. The entire film application process is efficient and orderly.

[0041] As a preferred option, in actual use, when the screen 18 needs to complete multiple process steps, the number of fixed modules 702 can be increased to meet different production needs.

[0042] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some changes or modifications to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes, and modifications made to the above embodiments based on the present utility model without departing from the scope of the present utility model shall fall within the scope of the present utility model.

Claims

1. A multi-station screen positioning device, comprising a linear module (1), characterized in that: The linear module (1) is provided with a support plate (2), and the support plate (2) is provided with a plurality of fixtures (7) and a sliding groove (4) passing through the plurality of fixtures (7). An ejector block (5) is provided in the sliding groove (4), and an ejector cylinder (12) is provided at one end of the ejector block (5). The ejector cylinder (12) is used to drive the ejector block (5) to reciprocate in a direction perpendicular to the fixture (7).

2. The multi-station screen positioning device according to claim 1, characterized in that: The fixture (7) includes a positioning module (701) and a fixing module (702), and the fixing module (702) is provided with an adsorption hole (15).

3. The multi-station screen positioning device according to claim 2, characterized in that: The positioning module (701) and the fixing module (702) are each provided with a first platform (1101) and a second platform (1102). The second platform (1102) is located on both sides of the first platform (1101), and the first platform (1101) is higher than the second platform (1102).

4. The multi-station screen positioning device according to claim 3, characterized in that: The positioning module (701) is provided with an X-axis positioning cylinder (801) and a Y-axis positioning cylinder (802) on its adjacent sides, and each of the X-axis positioning cylinder (801) and the Y-axis positioning cylinder (802) is provided with a push plate (9).

5. The multi-station screen positioning device according to claim 4, characterized in that: The push plate (9) is arranged in an L-shape, and one end of the push plate (9) extends toward the first platform (1101).

6. The multi-station screen positioning device according to claim 5, characterized in that: The push plate (9) has a positioning boss (10) at one end near the first platform (1101).

7. The multi-station screen positioning device according to claim 6, characterized in that: The ejector cylinder (12) is horizontally positioned below the support plate (2) via the mounting bracket (6). The ejector block (5) is vertically mounted in the sliding groove (4) via the slider (13). The ejector cylinder (12) is connected to the ejector block (5) via the connecting rod (14).

8. The multi-station screen positioning device according to claim 7, characterized in that: The ejector block (5) has a T-shaped structure. One end of the ejector block (5) passes through the support plate (2) and abuts against the mounting bracket (6).

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