Automatic dispensing device for LCD (liquid crystal display)

Abstract

The utility model relates to the technical field of dispensing machines, in particular to an automatic dispensing device for an LCD (liquid crystal display). The utility model provides an automatic dispensing device for a liquid crystal display (LCD) screen, which comprises a lower frame, an upper frame, supporting legs, a placing table, a first electric sliding rail, a mounting block, a second electric sliding rail, a third electric sliding rail, a connecting block, a dispensing machine and the like, the upper frame is arranged on the lower frame, and the placing table is arranged at the bottom in the upper frame; first electric sliding rails are symmetrically mounted at the inner bottom of the upper frame, mounting blocks are arranged on the first electric sliding rails, a second electric sliding rail is mounted between the tops of the two mounting blocks, a third electric sliding rail is arranged on the second electric sliding rail, a connecting block is arranged on an electric sliding block of the third electric sliding rail, and a dispensing machine is mounted on the front side of the connecting block. And a back suction assembly is arranged on the side edge of the dispensing machine. And through the design of the air suction pump and the air pipe, redundant glue at the spray head of the glue dispenser can be sucked back into the glue dispenser, so that the phenomena of glue hanging and wire drawing are prevented.

Description

TECHNICAL FIELD

[0001] The utility model relates to a point gum machine technical field especially relates to a kind of automatic dispensing device for LCD liquid crystal display screen. BACKGROUND

[0002] In the production process of LCD liquid crystal display screen, dispensing is a crucial step, which is mainly used to firmly fix various components of the screen together or achieve sealing effect, to ensure the integrity and functionality of the display screen. The quality of dispensing directly affects the performance and reliability of the final product.

[0003] At present, there are various dispensing equipment in the market, among which the patent publication number CN217314234U is one of the manual dispensing machines for LCD liquid crystal display screen production. The manual dispensing machine is mainly composed of dispensing pen, workbench, top plate and two sides symmetrical square tube and other components, and the design aims to realize the dispensing function by manual operation.

[0004] However, although the manual dispensing machine has certain flexibility in some aspects, the manual dispensing method also exposes some inconveniences in the actual operation process. Especially in the fine dispensing operation, the nozzle is prone to glue hanging and wire drawing problems. Glue hanging refers to the glue remaining on the nozzle and gradually forming glue drops, which not only wastes glue, but also affects the accuracy and consistency of dispensing.

[0005] Therefore, an automatic dispensing device for LCD liquid crystal display screen needs to be designed. INVENTION CONTENTS

[0006] In order to overcome the shortcomings of the nozzle of the manual dispensing machine prone to glue hanging and wire drawing during operation, the utility model provides an automatic dispensing device for LCD liquid crystal display screen.

[0007] An automatic dispensing device for LCD liquid crystal display screen comprises a lower frame, an upper frame, a supporting leg, a placing table, an electric sliding rail one, a mounting block, an electric sliding rail two, an electric sliding rail three, a connecting block and a dispensing machine. The upper frame is arranged on the lower frame, and the placing table is arranged at the bottom of the upper frame. The electric sliding rail one is vertically arranged at the bottom of the upper frame symmetrically left and right. The mounting block is arranged on the electric sliding block of the electric sliding rail one. The electric sliding rail two is horizontally arranged between the top of the two mounting blocks. The electric sliding rail three is arranged on the electric sliding block of the electric sliding rail two. The connecting block is arranged on the electric sliding block of the electric sliding rail three. The dispensing machine is arranged on the front side of the connecting block. The device further comprises a back suction assembly arranged on the side of the dispensing machine.

[0008] Optionally, the back suction assembly comprises an air suction pump and an air pipe. The air suction pump is arranged on the side of the dispensing machine. The air suction port of the air suction pump is communicated with the air pipe. The other end of the air pipe is communicated with the port of the dispensing machine.

[0009] Optionally, it further comprises fixing blocks, springs and clamping blocks, fixing blocks are symmetrically arranged on the top of the placement table, and the side close to each other of the fixing blocks is connected with clamping blocks through springs.

[0010] Optionally, it further comprises supporting feet, supporting feet are arranged at the bottom of the lower frame.

[0011] Optionally, wheels are arranged at the bottom of the lower frame.

[0012] Optionally, the placement table is provided with anti-skid pads.

[0013] The utility model has the advantages and outstanding progress that:

[0014] The utility model discloses a design of suction pump and air pipe can accurately suck the excess glue at the glue dispenser nozzle back to the glue dispenser, thereby avoiding the glue remaining on the nozzle, effectively preventing the occurrence of glue hanging and wire drawing phenomenon. BRIEF DESCRIPTION OF DRAWINGS

[0015] Fig. 1 It is the three-dimensional structure schematic diagram of the utility model.

[0016] Fig. 2 It is the three-dimensional structure schematic diagram of the utility model mounting block, electric slide rail two and electric slide rail three and other parts.

[0017] Fig. 3 It is the three-dimensional structure schematic diagram of the utility model glue dispenser, suction pump and air pipe and other parts.

[0018] In the above drawings: 1: lower frame, 2: upper frame, 21: supporting foot, 3: placement table, 4: electric slide rail one, 5: mounting block, 6: electric slide rail two, 7: electric slide rail three, 8: connecting block, 9: glue dispenser, 10: suction pump, 11: air pipe, 12: fixing block, 13: spring, 14: clamping block. DETAILED DESCRIPTION

[0019] In this document, the reference to an embodiment means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the utility model. The appearance of this phrase in various places in the specification is not necessarily all referring to the same embodiment, nor is it necessarily referring to a common or all embodiments. It will be explicitly understood that the embodiments described herein can be combined with other embodiments.

[0020] Embodiment: an automatic glue dispensing device for LCD liquid crystal display screen, such as Figs. 1-3As shown, it comprises a lower frame 1, an upper frame 2, support feet 21, a placement table 3, an electric sliding rail one 4, a mounting block 5, an electric sliding rail two 6, an electric sliding rail three 7, a connecting block 8, a glue dispenser 9, a suction pump 10, an air pipe 11, a fixing block 12, a spring 13 and a clamping block 14. The upper frame 2 is connected to the top of the lower frame 1, and wheels are arranged at the bottom of the lower frame 1 to facilitate the movement of the whole device. The upper frame 2 is designed in a semi-open structure, and support feet 21 are connected to the bottom of the lower frame 1 at the four corners. The placement table 3 is connected to the inner bottom of the upper frame 2, and a non-slip pad is arranged on the placement table 3 to prevent the LCD from slipping. The electric sliding rail one 4 is installed symmetrically and longitudinally on the inner bottom of the upper frame 2, and two electric sliding rail ones 4 are respectively located on the left and right sides of the placement table 3. The mounting block 5 is connected to the electric sliding block of the electric sliding rail one 4. The electric sliding rail two 6 is horizontally installed between the two mounting blocks 5, and the electric sliding rail three 7 is installed on the electric sliding block of the electric sliding rail two 6. The connecting block 8 is connected to the electric sliding block of the electric sliding rail three 7, and the glue dispenser 9 is installed on the front side of the connecting block 8. The glue dispenser 9 is used to perform glue dispensing operation and accurately apply glue to the LCD. The suction pump 10 is installed on the side of the glue dispenser 9, and the air pipe 11 is connected to the suction port of the suction pump 10. The other end of the air pipe 11 is connected to the port of the glue dispenser 9. This design can suck the excess glue back into the glue dispenser 9 after the glue dispensing is completed, preventing the nozzle of the glue dispenser 9 from hanging glue and drawing silk. The fixing block 12 is connected to the top of the placement table 3, and the clamping block 14 is connected to the side of the fixing block 12 through the spring 13. The clamping block 14 is used to clamp the LCD to prevent movement during glue dispensing.

[0021] When the LCD automatic glue dispensing device is needed, first, the LCD to be dispensed is placed stably on the placement table 3. Then, the LCD is clamped firmly by the clamping block 14 through the elastic force provided by the spring 13 to ensure that it does not move or shift during glue dispensing.

[0022] Next, according to the specific specifications and glue dispensing requirements of the LCD, the positions of the electric sliding rail one 4, the electric sliding rail two 6 and the electric sliding rail three 7 are adjusted. These adjustments will determine the movement path and accurate glue dispensing position of the glue dispenser 9, ensuring the accuracy and consistency of glue dispensing. After setting the movement path, the glue dispensing speed and amount of the glue dispenser 9 need to be set. When everything is ready, turn on the power of the glue dispenser 9 and start its glue dispensing program. At this time, the glue dispenser 9 will start moving according to the preset path and parameters, and accurately apply glue to the specified position of the LCD to perform automatic glue dispensing operation.

[0023] When the glue dispenser 9 finishes all the dispensing operations, the power supply of the glue dispenser 9 is turned off. Then, the air suction pump 10 is started to suck the excess glue from the nozzle of the glue dispenser 9 back into the glue dispenser 9 through the air pipe 11. This step is very important to prevent the nozzle from being covered with glue and to keep the glue dispenser 9 in good working condition.

[0024] Finally, when all the dispensing operations are completed and the dispensing quality of the LCD liquid crystal display screen is confirmed to meet the requirements, the clamp block 14 can be released and the LCD liquid crystal display screen can be gently taken off from the placing table 3.

[0025] Although the present application is described in detail with reference to the above embodiments, it is obvious to those skilled in the art through the disclosure that various changes or modifications can be made to the present application without departing from the principles and spirit of the application defined in the claims. Therefore, the detailed description of the embodiments of the present application is only used for explanation, but not for limitation of the present application, and the protection scope is defined by the content of the claims.

Claims

1. An automatic dispensing device for an LCD liquid crystal display screen, comprising a lower frame (1), an upper frame (2), support feet (21), a placement platform (3), an electric slide rail one (4), a mounting block (5), an electric slide rail two (6), an electric slide rail three (7), a connecting block (8), and a dispensing machine (9), wherein the lower frame (1) is provided with the upper frame (2), the placement platform (3) is provided at the bottom inside the upper frame (2), the electric slide rail one (4) is symmetrically and longitudinally installed on the bottom inside the upper frame (2), the electric slide rail one (4) is provided on the electric slider of the electric slide rail one (4), the electric slide rail two (6) is horizontally installed between the tops of the two mounting blocks (5), the electric slide rail three (7) is installed on the electric slider of the electric slide rail two (6), the electric slider of the electric slide rail three (7) is provided on the electric slider of the electric slide rail three (7), and the dispensing machine (9) is installed on the front side of the connecting block (8), characterized in that: It also includes a back suction component, which is provided on the side of the dispensing machine (9).

2. An automatic dispensing device for an LCD liquid crystal display screen according to claim 1, characterized in that: The back suction assembly includes an air pump (10) and an air pipe (11). The air pump (10) is installed on the side of the dispensing machine (9). The air inlet of the air pump (10) is connected to the air pipe (11), and the other end of the air pipe (11) is connected to the port of the dispensing machine (9).

3. An automatic dispensing device for an LCD liquid crystal display screen according to claim 2, characterized in that: It also includes a fixing block (12), a spring (13) and a clamping block (14). The fixing blocks (12) are symmetrically arranged on the top of the placement platform (3). The clamping blocks (14) are connected to each other on the side of the fixing blocks (12) that are close to each other through the spring (13).

4. An automatic dispensing device for an LCD liquid crystal display screen according to claim 3, characterized in that: It also includes support feet (21), with support feet (21) provided at the four bottom corners of the lower frame (1).

5. An automatic dispensing device for an LCD liquid crystal display screen according to claim 1, characterized in that: Wheels are also provided at the bottom of the lower frame (1).

6. An automatic dispensing device for an LCD liquid crystal display screen according to claim 1, characterized in that: The placement platform (3) is equipped with an anti-slip mat.

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