Oca rubber tearing device for panel

By heating and softening the OCA adhesive and using a drive device to pull the wire to separate the cover glass from the panel, the problem of damage caused by panel freeze-hardening in existing technologies is solved, achieving efficient and non-destructive disassembly.

CN224323043UActive Publication Date: 2026-06-05JIANG SU HE YI GUANG XIAN KE JI YOU XIAN GONG SI

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANG SU HE YI GUANG XIAN KE JI YOU XIAN GONG SI
Filing Date
2025-06-09
Publication Date
2026-06-05

AI Technical Summary

Technical Problem

In the production process of LCD and OLED panels, existing technologies use freeze-curing OCA to make the cover glass easy to separate from the panel, which can easily cause color spots on the panel and damage the product.

Method used

A heating table is used to soften the OCA adhesive, and a drive device is used to pull a wire through the gap between the cover glass and the panel. The wire is used to pull the adhesive, separating the cover glass from the panel. A limit block is used to limit the movement and prevent interference.

Benefits of technology

This effectively avoids panel damage, improves disassembly efficiency and recycling rate, and reduces the risk of damage during the reprocessing of defective products.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application relates to the technical field of display screen panel production, in particular to an OCA pulling and separating device for a panel, which comprises a heating table for placing a product to be separated; a separating component is arranged above the heating table; the separating component comprises a pulling wire and a driving device for driving the pulling wire to move; the pulling wire passes between a cover plate glass and the panel under the driving of the driving device, thereby pulling and separating the OCA between the cover plate glass and the panel, so that the cover plate glass and the panel are separated; a limiting block for limiting the product to be separated during the pulling and separating process is arranged on the heating table. The application is simple to operate, replaces the existing technology of freezing OCA, and avoids the panel from being damaged by being pushed, thereby improving the separation and recycling rate.
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Description

Technical Field

[0001] This application relates to the technical field of display panel manufacturing, and in particular to an OCA adhesive removal device for panels. Background Technology

[0002] Currently, in the LCD and OLED panel industry, defective products are inevitably produced during the display panel manufacturing process. These defective products can be repaired and become qualified products, thus reducing waste. For example, CG (cover glass) is attached to the panel using OCA (Oxide Acrylic Acid). During repair, the OCA needs to be processed to separate the CG from the panel, allowing for the recycling of both the CG and the panel for reuse. Currently, the separation of CG and panel involves placing the attached CG and panel together in a freezer to freeze them, causing the OCA to harden and lose its adhesiveness. Then, a pry bar is used to separate the CG and panel, followed by separate adhesive removal. However, the hardened OCA can easily damage the panel, causing discoloration. Utility Model Content

[0003] In order to improve the problem that the separation of CG and panel by cryogenic curing of OCA in the prior art is prone to causing damage to the panel and resulting in color spots, this application provides an OCA pull-out device for panel.

[0004] The OCA adhesive removal device for panels provided in this application adopts the following technical solution:

[0005] An OCA adhesive removal device for a panel includes a heating platform for placing the product to be removed; a separation component is provided above the heating platform, the separation component includes a pull wire and a driving device for moving the pull wire, the pull wire passes between the cover glass and the panel under the drive of the driving device, thereby pulling the OCA adhesive between the cover glass and the panel, so as to separate the cover glass from the panel; a limiting block is provided on the heating platform for limiting the product to be removed during the adhesive pulling process.

[0006] Preferably, the product to be disassembled is placed horizontally on the heating platform, and the pull wire enters from one end of the product to be disassembled along its length direction between the cover glass and the panel under the drive of the driving device; the limiting block is located at the other end of the product to be disassembled along its length direction; the limiting block abuts against the outer wall of the product to be disassembled; the distance between the pull wire and the upper surface of the heating platform is greater than the distance between the upper surface of the limiting block and the upper surface of the heating platform.

[0007] Preferably, the length direction of the pull wire intersects the length direction of the product to be disassembled, so that the pull wire enters from one of the top corners of the product to be disassembled under the drive of the driving device.

[0008] Preferably, the driving device includes a mounting assembly for mounting the pull wire and a driving assembly for driving the mounting assembly to move. The mounting assembly includes a U-shaped frame, and the two ends of the pull wire along its length are respectively connected to the two ends of the opening of the U-shaped frame.

[0009] Preferably, the U-shaped frame has mounting holes at both ends for the pull wire to pass through, and the pull wire is tied at the mounting holes.

[0010] Preferably, the U-shaped frame includes a crossbeam and mounting blocks disposed at both ends of the crossbeam along its length, with mounting holes disposed on the mounting blocks; an adjustment component is disposed between the mounting blocks and the crossbeam, which can adjust the height of the mounting blocks on the horizontal plane, thereby adjusting the height of the pull line on the water surface.

[0011] Preferably, the adjusting assembly includes an insert block disposed on the mounting block, and the end of the crossbeam has a vertically provided slot for the insert block to be inserted and slid; the crossbeam is threaded with a fastening bolt for abutting the insert block.

[0012] In summary, this application includes at least one of the following beneficial technical effects: The OCA adhesive removal device for panels disclosed in this application consists of a heating platform, a separation component, and a limiting block. The product to be removed is placed horizontally on the heating platform. The heating platform softens the OCA adhesive between the cover glass and the panel by heating, reducing the difficulty of removal and improving the removal and recycling rate. The separation component includes a pull wire and a driving device. The driving device drives the pull wire to cross the product's length direction and enter between the cover glass and the panel from one of its top corners. By moving, the OCA adhesive is pulled, thus separating the cover glass from the panel. The installation component of the driving device adopts a U-shaped frame, with the pull wire connected to both ends of its opening. The mounting blocks at both ends of the U-shaped frame have mounting holes for the pull wire to pass through and are tied and fixed. The adjustment component between the mounting block and the crossbeam consists of a plug, a slot, and a fastening bolt, which can adjust the height of the U-shaped frame, thereby adjusting the height of the pull wire on the horizontal plane to adapt to different products. The limiting block is located at the other end of the product's length direction, abutting against the outer wall of the product to limit its movement. Its height is lower than the distance between the pull line and the heating table to avoid interfering with the pull line's movement path and ensure the smooth progress of the glue pulling operation. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of an OCA adhesive removal device for a panel according to an embodiment of this application.

[0014] Figure 2 This is a partial cross-sectional view in the embodiments of this application used to illustrate the connection relationship between the pull rope and the installation component.

[0015] Explanation of reference numerals in the attached drawings: 1. Heating table; 2. Separation component; 21. Pull wire; 22. Drive device; 221. Mounting assembly; 222. Drive assembly; 3. Limiting block; 4. U-shaped frame; 41. Crossbeam; 42. Mounting block; 5. Mounting hole; 6. Insert block; 7. Slot; 8. Fastening bolt. Detailed Implementation

[0016] The following is in conjunction with the appendix Figure 1-2 This application will be described in further detail.

[0017] This application discloses an OCA adhesive removal device for panels. (Refer to...) Figure 1 and Figure 2 The device includes a heating platform 1 for placing the product to be disassembled. The heating platform 1 can heat the product to be disassembled (cover glass and panel assembly) to soften the OCA adhesive. A separation component 2 is provided above the heating platform. The separation component 2 includes a pull wire 21 and a drive device 22 for moving the pull wire 21. The pull wire 21 passes between the cover glass and the panel under the drive of the drive device 22, thereby pulling the OCA adhesive between the cover glass and the panel, so that the cover glass is separated from the panel. A limiting block 3 is provided on the heating platform 1 for limiting the product to be disassembled during the adhesive pulling process.

[0018] Reference Figure 1 and Figure 2 The product to be disassembled is placed horizontally on the heating platform 1. Driven by the driving device 22, the pull wire 21 enters from one end of the product's length direction between the cover glass and the panel. The length direction of the pull wire 21 intersects the length direction of the product to be disassembled, so that the pull wire 21 enters from one of the top corners of the product to be disassembled under the drive of the driving device 22. The limiting block 3 is located at the other end of the product's length direction. The limiting block 3 abuts against the outer wall of the product to be disassembled. The distance between the pull wire 21 and the upper surface of the heating platform 1 is greater than the distance between the upper surface of the limiting block 3 and the upper surface of the heating platform 1 to avoid interference.

[0019] Reference Figure 1 and Figure 2The driving device 22 includes a mounting assembly 221 for mounting the pull wire 21 and a driving assembly 222 for driving the mounting assembly 221 to move. The driving assembly 222 is a screw drive structure, which drives the screw to rotate via a motor (not shown in the figure). A slider is provided on the screw, and the slider is connected to the mounting assembly 221. The mounting assembly 221 includes a U-shaped frame, and the two ends of the pull wire 21 in the length direction are respectively connected to the two ends of the opening of the U-shaped frame. The two ends of the U-shaped frame have mounting holes 5 for the pull wire 21 to pass through, and the pull wire 21 is tied at the mounting holes 5. The U-shaped frame includes a crossbeam 41 and mounting blocks 42 provided at both ends of the crossbeam 41 in the length direction. The mounting holes 5 are provided on the mounting blocks 42. An adjustment assembly is provided between the mounting blocks 42 and the crossbeam 41. The height of the mounting blocks 42 on the horizontal plane can be adjusted by adjusting the assembly, thereby adjusting the height of the pull wire 21 on the horizontal plane. The adjustment assembly includes a plug 6 disposed on the mounting block 42, and a slot 7 vertically provided at the end of the crossbeam 41 for the plug 6 to be inserted and slid; and a fastening bolt 8 for abutting the plug 6 is threaded onto the crossbeam 41.

[0020] The implementation principle of the OCA adhesive removal device for panels according to an embodiment of this application is as follows: During operation, the product to be removed is placed horizontally on the heating platform 1. The heating platform 1 softens the OCA adhesive between the cover glass and the panel by heating, reducing the difficulty of removal. The separation component 2 includes a pull wire 21 and a driving device 22. The driving device 22 drives the pull wire 21 to cross the product length direction and enter between the cover glass and the panel from one of the top corners. By moving the wire, the OCA adhesive is pulled, thereby separating the cover glass from the panel.

[0021] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A device for removing OCA adhesive from a panel, characterized in that: It includes a heating platform (1) for placing products to be disassembled; a separation component (2) is provided above the heating platform (1), the separation component (2) includes a pull wire (21) and a driving device (22) for moving the pull wire (21), the pull wire (21) passes between the cover glass and the panel under the drive of the driving device (22), and then pulls the OCA between the cover glass and the panel to separate the cover glass from the panel; a limiting block (3) is provided on the heating platform (1) for limiting the products to be disassembled during the pulling process.

2. The OCA adhesive removal device for panels according to claim 1, characterized in that: The product to be disassembled is placed horizontally on the heating table (1). The pull wire (21) is driven by the drive device (22) and enters from one end of the product to be disassembled along the length direction between the cover glass and the panel. The limiting block (3) is located at the other end of the product to be disassembled along the length direction. The limiting block (3) abuts against the outer wall of the product to be disassembled. The distance between the pull wire (21) and the upper surface of the heating table (1) is greater than the distance between the upper surface of the limiting block (3) and the upper surface of the heating table (1).

3. The OCA adhesive removal device for panels according to claim 2, characterized in that: The length direction of the pull wire (21) intersects the length direction of the product to be disassembled, so that the pull wire (21) enters from one of the top corners of the product to be disassembled under the drive of the drive device (22).

4. The OCA adhesive removal device for panels according to claim 3, characterized in that: The drive device (22) includes a mounting assembly (221) for mounting the pull wire (21) and a drive assembly (222) for driving the mounting assembly (221) to move. The mounting assembly (221) includes a U-shaped frame (4), and the two ends of the pull wire (21) in the length direction are respectively connected to the two ends of the opening of the U-shaped frame (4).

5. The OCA adhesive removal device for a panel according to claim 4, characterized in that: The U-shaped frame (4) has mounting holes (5) at both ends for the pull wire (21) to pass through, and the pull wire (21) is tied at the mounting holes (5).

6. The OCA adhesive removal device for a panel according to claim 5, characterized in that: The U-shaped frame (4) includes a crossbeam (41) and mounting blocks (42) at both ends of the crossbeam (41) along its length. The mounting holes (5) are located on the mounting blocks (42). An adjustment assembly is provided between the mounting blocks (42) and the crossbeam (41). The height of the mounting blocks (42) on the horizontal plane can be adjusted by the adjustment assembly, thereby adjusting the height of the pull line (21) on the water surface.

7. The OCA adhesive removal device for a panel according to claim 5, characterized in that: The adjustment assembly includes a plug (6) disposed on the mounting block (42), and the end of the crossbeam (41) is vertically provided with a slot (7) for the plug (6) to be inserted and slid; the crossbeam (41) is threaded with a fastening bolt (8) for abutting the plug (6).