A touch screen bonding bubble inspection device

Abstract

This utility model discloses a touch screen bonding bubble inspection device, including a base plate. An electric push rod is fixedly installed in the center of the top of the base plate. Support frames located on both sides of the electric push rod are fixedly installed on the top of the base plate. A fixed bracket located behind the support frames is fixedly installed on the top of the base plate. An LED light source is movably mounted on the top of the fixed bracket. A placement platform is fixedly installed on the top of the support frames. A placement groove is formed on the top of the placement platform. A telescopic cylinder is fixedly installed through the bottom of the placement groove. A lifting plate located between the two support frames is fixedly installed at the movable end of the top of the electric push rod. A telescopic rod is fixedly installed on the top of the lifting plate. The air pressure inside the telescopic cylinder decreases, and the screen is fixed in the placement groove under negative pressure, ensuring that the screen is fixed without obstructing it, thus allowing for more comprehensive inspection.

Description

Technical Field

[0001] This utility model relates to the field of touch screen technology, specifically to a device for inspecting bubbles in touch screen bonding. Background Technology

[0002] In recent years, the development of capacitive touchscreens has been rapid, and market competition has become increasingly fierce. To improve production yield and customer satisfaction, higher requirements have been placed on the process inspection of capacitive touchscreens. Air bubbles may exist during the bonding process between the glass cover and the functional sheet, affecting the quality of the touchscreen.

[0003] However, existing touch screen fixing fixtures are not effective at fixing the screen, and existing fixtures generally use mechanical clamping for fixing, so the part fixed by the clamping claws cannot be observed during the inspection process.

[0004] Therefore, we propose a touch screen bonding bubble inspection device. Utility Model Content

[0005] The purpose of this invention is to provide a device for inspecting bubbles in touchscreen bonding, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a touch screen bonding bubble inspection device, comprising a base plate, an electric push rod fixedly installed at the center of the top of the base plate, support frames fixedly installed on both sides of the electric push rod on the top of the base plate, a fixed bracket fixedly installed on the top of the base plate at the rear of the support frames, an LED light source movably installed on the top of the fixed bracket, a placement platform fixedly installed on the top of the support frames, a placement groove opened on the top of the placement platform, a telescopic cylinder fixedly installed through the bottom of the placement groove, a lifting plate fixedly installed at the movable end of the top of the electric push rod between the two support frames, a telescopic rod fixedly installed on the top of the lifting plate, the telescopic rod being slidably connected through the top of the telescopic cylinder, a piston plate fixedly installed on the top of the telescopic rod inside the telescopic cylinder, and the outer circumferential surface of the piston plate being slidably sealed to the inner wall of the telescopic cylinder.

[0007] Optionally, the top of the fixed bracket is provided with a sliding groove, and the top of the fixed bracket is slidably connected to a mounting plate located above the placement platform through the sliding groove, and the LED light source is fixedly installed to the bottom of the mounting plate.

[0008] Optionally, the LED light source includes a strip-shaped lamp housing, a strip-shaped circuit board installed in the strip-shaped lamp housing, and a number of LED beads packaged on the strip-shaped circuit board in a linear array. A convex lens corresponding to each LED bead is embedded in the strip-shaped lamp housing.

[0009] Optionally, the top of the telescopic cylinder is flush with the bottom of the placement groove, the top of the telescopic cylinder has an opening, and the top of the telescopic cylinder has an installation groove located outside the opening, and a rubber ring is fixedly installed inside the installation groove.

[0010] Optionally, the bottom of the piston plate is fixedly installed with the top of the telescopic rod, and an ejector block is fixedly installed on the top of the piston plate.

[0011] Optionally, the telescopic cylinder and the telescopic rod are arranged coaxially, and the diameter of the telescopic rod is smaller than the diameter of the telescopic cylinder.

[0012] Optionally, the diameter of the ejector block is smaller than the diameter of the opening, and the height of the ejector block is greater than the depth of the opening.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. This touchscreen bonding bubble inspection device uses a telescopic cylinder and an electric push rod to place the screen to be inspected in the placement slot at the top of the placement platform. Then, the electric push rod drives the lifting plate to move down, which in turn causes the telescopic rod to drive the piston plate to move down, thereby reducing the air pressure inside the telescopic cylinder. Under the action of negative pressure, the screen is fixed in the placement slot, so that the screen is fixed without being obstructed, thus making the inspection more comprehensive.

[0015] 2. This touch screen bonding bubble inspection device uses a fixed bracket to fix the screen in place by the negative pressure inside the telescopic cylinder. The mounting plate is then moved along the sliding groove, allowing the LED light source to inspect the fixed screen. By moving the LED light source, bubbles in the water-based adhesive layer of the screen can be clearly reflected. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of a touch screen bonding bubble inspection device according to the present invention;

[0017] Figure 2 This is a schematic diagram of the placement platform of a touch screen bonding bubble inspection device according to the present invention;

[0018] Figure 3 This is a schematic diagram of the structure of the telescopic cylinder of the touch screen bonding bubble inspection device of this utility model;

[0019] Figure 4 This is a schematic diagram of the fixed bracket of a touch screen bonding bubble inspection device according to the present invention.

[0020] In the diagram: 1. Base plate; 2. Electric push rod; 3. Support frame; 4. Placement platform; 5. Placement slot; 6. Telescopic cylinder; 7. Lifting plate; 8. Telescopic rod; 9. Piston plate; 10. Ejector block; 11. Mounting slot; 12. Rubber ring; 13. Fixed bracket; 14. Sliding slot; 15. Mounting plate; 16. LED light source. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figures 1 to 4 This utility model provides a touch screen bonding bubble inspection device, including a base plate 1, an electric push rod 2 fixedly installed at the center of the top of the base plate 1, support frames 3 fixedly installed on both sides of the electric push rod 2 on the top of the base plate 1, a fixed bracket 13 fixedly installed on the top of the base plate 1 at the rear of the support frame 3, an LED light source 16 movably installed on the top of the fixed bracket 13, a placement platform 4 fixedly installed on the top of the support frame 3, a placement groove 5 opened on the top of the placement platform 4, a telescopic cylinder 6 fixedly installed through the bottom of the placement groove 5, and a lifting plate 7 fixedly installed at the movable end of the top of the electric push rod 2 between the two support frames 3, the top of the lifting plate 7 being fixed A telescopic rod 8 is installed, which is slidably connected to the top of the telescopic cylinder 6. A piston plate 9 located inside the telescopic cylinder 6 is fixedly installed on the top of the telescopic rod 8. The outer circumference of the piston plate 9 is slidably sealed with the inner wall of the telescopic cylinder 6. By setting up the telescopic cylinder 6 and the electric push rod 2, the screen to be tested is placed in the placement slot 5 on the top of the placement platform 4. Then, the electric push rod 2 drives the lifting plate 7 to move down, which causes the telescopic rod 8 to drive the piston plate 9 to move down, thereby reducing the air pressure inside the telescopic cylinder 6. Under the action of negative pressure, the screen is fixed in the placement slot 5, so that the screen is fixed without being obstructed, thus making the test more comprehensive.

[0023] The top of the fixed bracket 13 has a sliding groove 14. The top of the fixed bracket 13 is slidably connected to the mounting plate 15 located above the placement platform 4 via the sliding groove 14. The LED light source 16 is fixedly installed to the bottom of the mounting plate 15. The LED light source 16 includes a strip-shaped lamp housing, a strip-shaped circuit board installed in the strip-shaped lamp housing, and several LED beads packaged on the strip-shaped circuit board in a linear array. The strip-shaped lamp housing has convex lenses that correspond one-to-one with the LED beads. After the screen is fixed by the negative pressure inside the telescopic cylinder 6 through the fixed bracket 13, the mounting plate 15 is moved, causing the mounting plate 15 to move along the sliding groove 14, thereby allowing the LED light source 16 to move. 6. Inspect the fixed screen. By moving the LED light source 16, the air bubbles in the water-based adhesive layer of the screen can be clearly reflected. The top of the telescopic cylinder 6 is flush with the bottom of the placement groove 5. The top of the telescopic cylinder 6 has an opening. The top of the telescopic cylinder 6 has an installation groove 11 located outside the opening. A rubber ring 12 is fixedly installed inside the installation groove 11. The bottom of the piston plate 9 is fixedly installed with the top of the telescopic rod 8. The top of the piston plate 9 is fixedly installed with an ejector block 10. The telescopic cylinder 6 and the telescopic rod 8 are arranged coaxially. The diameter of the telescopic rod 8 is smaller than the diameter of the telescopic cylinder 6. The diameter of the ejector block 10 is smaller than the diameter of the opening. The height of the ejector block 10 is greater than the depth of the opening.

[0024] Working principle:

[0025] The screen to be tested is placed in the placement slot 5 at the top of the placement platform 4. Then, the electric push rod 2 drives the lifting plate 7 to move down, which causes the telescopic rod 8 to drive the piston plate 9 to move down, thereby reducing the air pressure inside the telescopic cylinder 6. Under the action of negative pressure, the screen is fixed in the placement slot 5, so that the screen is fixed without being obstructed. After the screen is fixed by the negative pressure inside the telescopic cylinder 6, the mounting plate 15 is moved, so that the mounting plate 15 moves along the sliding groove 14, thereby allowing the LED light source 16 to inspect the fixed screen. By moving the LED light source 16, the air bubbles in the water adhesive layer of the screen can be clearly reflected.

[0026] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A touch screen lamination bubble inspection apparatus comprising a base plate (1), characterized in that, An electric push rod (2) is fixedly installed in the middle of the top of the base plate (1). Support frames (3) located on both sides of the electric push rod (2) are fixedly installed on the top of the base plate (1). A fixed bracket (13) located behind the support frame (3) is fixedly installed on the top of the base plate (1). An LED light source (16) is movably installed on the top of the fixed bracket (13). A placement platform (4) is fixedly installed on the top of the support frame (3). A placement groove (5) is opened on the top of the placement platform (4). A telescopic cylinder (6) is fixedly installed through the bottom of the placement groove (5). A lifting plate (7) located between the two support frames (3) is fixedly installed on the movable end of the top of the electric push rod (2). A telescopic rod (8) is fixedly installed on the top of the lifting plate (7). The telescopic rod (8) is slidably connected through the top of the telescopic cylinder (6). A piston plate (9) located inside the telescopic cylinder (6) is fixedly installed on the top of the telescopic rod (8). The outer circumference of the piston plate (9) is slidably sealed with the inner wall of the telescopic cylinder (6).

2. The touch screen lamination bubble inspection apparatus of claim 1, wherein, The top of the fixed bracket (13) is provided with a sliding groove (14), and the top of the fixed bracket (13) is slidably connected to the mounting plate (15) located above the placement platform (4) through the sliding groove (14). The LED light source (16) is fixedly installed on the bottom of the mounting plate (15).

3. The touch screen lamination bubble inspection apparatus of claim 2, wherein, The LED light source (16) includes a strip-shaped lamp housing, a strip-shaped circuit board installed in the strip-shaped lamp housing, and a number of LED beads packaged on the strip-shaped circuit board in a linear array. A convex lens corresponding to each LED bead is embedded in the strip-shaped lamp housing.

4. The touch screen lamination bubble inspection apparatus of claim 1, wherein, The top of the telescopic cylinder (6) is flush with the bottom of the placement groove (5). The top of the telescopic cylinder (6) has an opening, and the top of the telescopic cylinder (6) has an installation groove (11) located outside the opening. A rubber ring (12) is fixedly installed inside the installation groove (11).

5. A touch screen lamination bubble inspection apparatus according to claim 4, wherein, The bottom of the piston plate (9) is fixedly installed with the top of the telescopic rod (8), and an ejector block (10) is fixedly installed on the top of the piston plate (9).

6. The touch screen lamination bubble inspection apparatus of claim 1, wherein, The telescopic cylinder (6) and the telescopic rod (8) are arranged on the same axis, and the diameter of the telescopic rod (8) is smaller than the diameter of the telescopic cylinder (6).

7. The touch screen lamination bubble inspection apparatus of claim 5, wherein, The diameter of the ejector block (10) is smaller than the diameter of the opening, and the height of the ejector block (10) is greater than the depth of the opening.

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