Gluing device for liquid crystal display production

Abstract

The utility model discloses a gluing device for liquid crystal display production, which relates to the technical field of gluing and comprises an L-shaped bottom plate, a support arranged on the upper end face of a horizontal section of the L-shaped bottom plate, a lifting bracket mounted on the support, a glue box fixed on the lifting bracket, glue outlet components mounted at the bottoms of two sides of the glue box, and an extrusion component arranged at the top of the glue box. A feeding device is installed on one side of the vertical section of the L-shaped bottom plate, the lifting bracket comprises a lifting plate, connecting rods are arranged at the two ends of the lifting plate, screw rods are connected to the two connecting rods in a threaded mode, servo motors are connected to the upper ends of the two screw rods, and the support comprises a fixing column fixed to the upper end face of the horizontal section of the L-shaped bottom plate. According to the glue spreading device, the support, the lifting bracket, the glue box, the glue outlet assembly, the extrusion assembly and the feeding device are used in cooperation, glue spreading on the display assembly can be achieved, the distance between the lower end of the glue nozzle and the display assembly can be adjusted according to the thickness of a display, smooth glue spreading is guaranteed, and practicability is good.

Description

Technical Field

[0001] The utility model relates to the technical field of gluing, in particular to a gluing device for producing liquid crystal displays. Background Art

[0002] A liquid crystal display is an active matrix liquid crystal display driven by thin film transistors. It mainly uses electric current to stimulate liquid crystal molecules to produce points, lines, and surfaces, which cooperate with the back light tubes to form the picture. IPS, TFT, and SLCD are all subcategories of LCD. Its working principle is that under the action of the electric field, the arrangement direction of liquid crystal molecules changes, the transmittance of the external light source changes, and the electro-optical conversion is completed. Then, the different excitations of the R, G, and B primary color signals are used to complete the color reproduction in the time domain and spatial domain through the red, green, and blue primary color filters.

[0003] Liquid crystal displays require gluing during their production process, but existing gluing devices are unable to apply glue to displays of different thicknesses when in use. This can easily cause the glue nozzle to be far away from the display or the glue nozzle to touch the display, resulting in the inability to complete the gluing operation. Therefore, a gluing device for liquid crystal display production is now provided. Utility Model Content

[0004] In response to the deficiencies of the prior art, the utility model provides a gluing device for liquid crystal display production. By cooperating with the provided bracket, lifting bracket, glue box, glue outlet assembly, extrusion assembly and feeding device, gluing of the display assembly can be achieved, and the distance between the lower end of the glue nozzle and the display assembly can be adjusted according to the thickness of the display, ensuring smooth gluing and good practicality, thereby overcoming the deficiencies of the prior art.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A glue coating device for liquid crystal display production comprises an L-shaped bottom plate, a bracket provided on the upper end surface of the horizontal section of the L-shaped bottom plate, a lifting bracket mounted on the bracket, a glue box fixed on the lifting bracket, glue discharge assemblies mounted on the bottom of both sides of the glue box, an extrusion assembly mounted on the top of the glue box, and a feeding device mounted on one side of the vertical section of the L-shaped bottom plate;

[0007] The lifting bracket comprises a lifting plate, both ends of the lifting plate are provided with connecting rods, two connecting rods are screwed with screw rods, and the upper ends of the two screw rods are connected to servo motors.

[0008] Through the above-mentioned scheme, by using the provided bracket, lifting bracket, glue box, glue outlet assembly, extrusion assembly and feeding device in coordination, the display assembly can be glued, and the distance between the lower end of the glue nozzle and the display assembly can be adjusted according to the thickness of the display, ensuring smooth glue application and good practicality.

[0009] Preferably, the bracket includes a fixing column fixed to the upper end surface of the horizontal section of the L-shaped bottom plate, the upper end surface of the fixing column is fixed with a U-shaped plate, and strip holes are opened on the vertical sections on both sides of the U-shaped plate.

[0010] Preferably, the two screws are rotatably mounted on the lower ends of the two strip holes through bearings, the two servo motors are respectively fixed on the upper ends of the vertical sections on both sides of the U-shaped plate, and the two connecting rods are respectively slidably engaged with the two strip holes.

[0011] Preferably, the glue discharging assembly includes a solenoid valve fixed to the bottom of the side wall of the glue box, one end of the solenoid valve is connected to a glue discharging pipe, one end of the glue discharging pipe is connected to a glue nozzle, and the lower end of the glue nozzle extends below the lifting plate.

[0012] Preferably, the extrusion assembly includes a U-shaped rod fixed to the top of the outer wall of the rubber box, a first electric push rod is fixed to the lower end surface of the horizontal section of the U-shaped rod, and a push plate is connected to the lower end of the first electric push rod, which forms a sliding snap fit with the inner wall of the rubber box.

[0013] Preferably, the feeding device includes a second electric push rod fixed to one side of the vertical section of the L-shaped bottom plate, one end of the second electric push rod is connected to a U-shaped support rod, and the U-shaped support rod is located between the lifting plate and the horizontal section of the U-shaped plate.

[0014] Preferably, the lower end surfaces on both sides of the U-shaped support rod are provided with strip-shaped slots, and support wheels are fixed at both ends of the upper end surface of the horizontal section of the U-shaped plate, and the two support wheels form a rolling engagement with the two strip-shaped slots respectively.

[0015] The beneficial effects of the utility model are:

[0016] By cooperating with the provided bracket, lifting bracket, glue box, glue outlet assembly, extrusion assembly and feeding device, glue coating on the display assembly can be achieved, and the distance between the lower end of the glue nozzle and the display assembly can be adjusted according to the thickness of the display, ensuring smooth glue coating and good practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the first-perspective stereoscopic structure of a glue coating device for liquid crystal display production proposed by the present invention.

[0018] Figure 2 This is a schematic diagram of the third perspective structure of a glue coating device for liquid crystal display production proposed by the present invention.

[0019] Figure 3 This is a schematic diagram of the third-angle stereoscopic structure of a glue coating device for liquid crystal display production proposed by the utility model.

[0020] Figure 4 The utility model proposes a glue coating device for liquid crystal display production Figure 1 Enlarged structural diagram at point A in the middle.

[0021] Figure 5 The utility model proposes a glue coating device for liquid crystal display production Figure 3 Enlarged structural diagram at point B in the middle.

[0022] In the figure: 1. L-shaped base plate; 2. Lifting plate; 3. Glue box; 4. U-shaped rod; 5. First electric push rod; 6. U-shaped support rod; 7. Second electric push rod; 8. Fixed column; 9. U-shaped plate; 10. Solenoid valve; 11. Glue outlet hose; 12. Servo motor; 13. Strip hole; 14. Connecting rod; 15. Screw; 16. Support wheel; 17. Strip slot; 18. Push plate. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0024] Example 1, with reference to Figure 1-5 A glue coating device for liquid crystal display production includes an L-shaped bottom plate 1, a bracket is provided on the upper end surface of the horizontal section of the L-shaped bottom plate 1, a lifting bracket is mounted on the bracket, a glue box 3 is fixed on the lifting bracket, glue discharge components are mounted on the bottom of both sides of the glue box 3, an extrusion component is provided on the top of the glue box 3, and a feeding device is installed on one side of the vertical section of the L-shaped bottom plate 1;

[0025] The lifting bracket includes a lifting plate 2, and connecting rods 14 are provided at both ends of the lifting plate 2. The two connecting rods 14 are screwed with screws 15, and the upper ends of the two screws 15 are connected to the servo motors 12;

[0026] The bracket includes a fixing column 8 fixed to the upper end surface of the horizontal section of the L-shaped bottom plate 1, and a U-shaped plate 9 is fixed to the upper end surface of the fixing column 8. The vertical sections on both sides of the U-shaped plate 9 are provided with strip holes 13;

[0027] Two screws 15 are rotatably mounted on the lower ends of the two strip holes 13 through bearings, two servo motors 12 are fixed to the upper ends of the vertical sections on both sides of the U-shaped plate 9, and two connecting rods 14 are slidably engaged with the two strip holes 13 respectively;

[0028] The glue outlet assembly comprises an electromagnetic valve 10 fixed at the bottom of the side wall of the glue tank 3, one end of the electromagnetic valve 10 is connected with a glue outlet pipe 11, one end of the glue outlet pipe 11 is connected with a glue nozzle, and the lower end of the glue nozzle extends below the lifting plate 2;

[0029] The extrusion assembly comprises a U-shaped rod 4 fixed at the top of the outer wall of the glue tank 3, the lower end surface of the horizontal section of the U-shaped rod 4 is fixed with a first electric push rod 5, the lower end of the first electric push rod 5 is connected with a push plate 18, and the push plate 18 is in sliding clamping cooperation with the inner wall of the glue tank 3;

[0030] The feeding device comprises a second electric push rod 7 fixed at one side of the vertical section of the L-shaped bottom plate 1, one end of the second electric push rod 7 is connected with a U-shaped support rod 6, and the U-shaped support rod 6 is located between the lifting plate 2 and the horizontal section of the U-shaped plate 9;

[0031] The lower end surfaces of the two sides of the U-shaped support rod 6 are both provided with a strip-shaped clamping groove 17, and the upper end surfaces of the two ends of the horizontal section of the U-shaped plate 9 are both fixed with a supporting wheel 16, the two supporting wheels 16 are respectively in rolling clamping cooperation with the two strip-shaped clamping grooves 17, and the two supporting wheels 16 can support the U-shaped support rod 6.

[0032] Working principle: the display assembly is placed on the U-shaped support rod 6, the two screw rods 15 are driven to rotate by the two servo motors 12 respectively, the height of the lifting plate 2 can be adjusted, the distance between the lower end of the glue nozzle and the display assembly is appropriate, the U-shaped support rod 6 is driven to move by the second electric push rod 7, so that the display assembly is driven to move below the two glue nozzles, the first electric push rod 5 and the two electromagnetic valves 10 are opened at the same time, the push plate 18 is driven to enter the glue tank 3 by the first electric push rod 5, glue is extruded from the two glue nozzles, and then is uniformly applied on the moving display assembly, after the gluing is completed, the electromagnetic valve 10 is closed, the U-shaped support rod 6 is reset by the second electric push rod 7, and the display assembly can be taken down for the next process.

[0033] The above is only a preferred specific embodiment of the present application, but the protection scope of the present application is not limited to this, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A glue coating device for liquid crystal display production, comprising an L-shaped bottom plate (1), characterized in that: The upper end surface of the horizontal section of the L-shaped bottom plate (1) is provided with a bracket, a lifting bracket is installed on the bracket, a glue box (3) is fixed on the lifting bracket, glue discharge components are installed on the bottom of both sides of the glue box (3), an extrusion component is provided on the top of the glue box (3), and a feeding device is installed on one side of the vertical section of the L-shaped bottom plate (1); The lifting bracket comprises a lifting plate (2), both ends of the lifting plate (2) are provided with connecting rods (14), two connecting rods (14) are screwed with screw rods (15), and the upper ends of the two screw rods (15) are connected to the servo motor (12).

2. The glue coating device for liquid crystal display production according to claim 1, characterized in that: The bracket comprises a fixing column (8) fixed to the upper end surface of the horizontal section of the L-shaped bottom plate (1), a U-shaped plate (9) is fixed to the upper end surface of the fixing column (8), and strip holes (13) are provided on the vertical sections on both sides of the U-shaped plate (9).

3. The glue coating device for liquid crystal display production according to claim 2, characterized in that: The two screw rods (15) are rotatably mounted on the lower ends of the two strip holes (13) through bearings, the two servo motors (12) are respectively fixed on the upper ends of the vertical sections on both sides of the U-shaped plate (9), and the two connecting rods (14) are respectively slidably engaged with the two strip holes (13).

4. The glue coating device for liquid crystal display production according to claim 1, characterized in that: The glue discharging assembly comprises a solenoid valve (10) fixed to the bottom of the side wall of the glue box (3), one end of the solenoid valve (10) is connected to a glue discharging pipe (11), one end of the glue discharging pipe (11) is connected to a glue nozzle, and the lower end of the glue nozzle extends to the bottom of the lifting plate (2).

5. The glue coating device for liquid crystal display production according to claim 1, characterized in that: The extrusion assembly comprises a U-shaped rod (4) fixed to the top of the outer wall of the rubber box (3); a first electric push rod (5) is fixed to the lower end surface of the horizontal section of the U-shaped rod (4); a push plate (18) is connected to the lower end of the first electric push rod (5); and the push plate (18) forms a sliding engagement with the inner wall of the rubber box (3).

6. The glue coating device for liquid crystal display production according to claim 2, characterized in that: The feeding device comprises a second electric push rod (7) fixed to one side of the vertical section of the L-shaped bottom plate (1), one end of the second electric push rod (7) is connected to a U-shaped support rod (6), and the U-shaped support rod (6) is located between the lifting plate (2) and the horizontal section of the U-shaped plate (9).

7. The glue coating device for liquid crystal display production according to claim 6, characterized in that: The lower end surfaces of both sides of the U-shaped support rod (6) are provided with strip-shaped slots (17), and support wheels (16) are fixed at both ends of the upper end surface of the horizontal section of the U-shaped plate (9), and the two support wheels (16) respectively form a rolling engagement with the two strip-shaped slots (17).

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