A glue spraying device for liquid crystal display screen production

Abstract

The utility model relates to liquid crystal display screen technical field discloses a kind of glue spraying devices for liquid crystal display screen production, including table body and glue box, the bottom end fixed connection of glue box has point glue gun, the bottom end fixed connection of point glue gun has gun needle, the one side outer wall fixed connection of glue box has square board, the bottom end fixed connection of square board has second electric cylinder. The utility model technical scheme can realize the connection of piston rod of second electric cylinder by connecting block and reinforcing block, residual glue on gun needle can be scraped by reciprocating sliding of scraper on gun needle by piston rod of second electric cylinder, reciprocating lifting, residual glue is scraped, and scraped residual glue is recycled by entering the recovery groove in the inside of scraper in round hole, by the cooperation of above each structure, not only the difficulty and frequency of staff cleaning gun needle can be reduced, residual glue scraped is avoided waste simultaneously.

Description

Technical Field

[0001] This utility model relates to the field of liquid crystal display technology, specifically to a glue spraying device for liquid crystal display production. Background Technology

[0002] Liquid crystal display (LCD) is a type of flat panel display used in televisions and computers. Its advantages include low power consumption, small size, and low radiation. During the manufacturing process, LCD displays require adhesive application to certain areas.

[0003] Existing glue spraying equipment typically uses a glue gun with a needle to apply glue. However, during the glue application process, glue residue is easily left on the needle, requiring frequent cleaning by workers. Therefore, a glue spraying device for LCD screen production is needed. Utility Model Content

[0004] The purpose of this invention is to provide a glue spraying device for LCD screen production, which solves the problems mentioned in the background art.

[0005] This application provides a glue spraying device for LCD screen production, including a platform and a glue box. A glue gun is fixedly connected to the bottom of the glue box, and a gun needle is fixedly connected to the bottom of the glue gun. A square plate is fixedly connected to one outer wall of the glue box, and a second electric cylinder is fixedly connected to the bottom of the square plate. A connecting block is fixedly connected to the end face of the piston rod of the second electric cylinder. A reinforcing block is fixedly connected to one outer wall of the gun needle. A scraper is slidably connected to the gun needle. The scraper is fixedly connected to the reinforcing block. A recycling groove is opened inside the scraper, and a circular hole is opened on the inner wall of the scraper, which communicates with the recycling groove.

[0006] In use, the LCD screen is first installed on the moving platform. Then, the first motor is started via an external power switch. The output shaft of the first motor drives the second lead screw to rotate, enabling the first adjusting block to move horizontally left and right, thus flexibly adjusting the left and right position of the dispensing gun. The output shaft of the second motor drives the first lead screw to rotate, enabling the second adjusting block to move back and forth, thereby moving the LCD screen on the moving platform back and forth. The combination of left and right movement of the dispensing gun improves the flexibility of dispensing. After dispensing, the piston rod of the second electric cylinder pushes the scraper to slide back and forth on the needle, scraping off the residual glue on the needle. Since the diameter of the scraper's central hole matches the diameter of the needle, the scraped residual glue is squeezed out as the scraper moves. The squeezed residual glue passing through the round opening enters the recycling tank for recycling. Through the cooperation of these structures, not only is the difficulty and frequency of cleaning the needle reduced, but the waste of scraped residual glue is also avoided.

[0007] Optionally, a fixed plate is fixedly connected to the top of the platform, a first long plate is fixedly connected to one outer wall of the fixed plate, a first motor is fixedly connected to the outer wall of the first long plate away from the fixed plate, the output shaft of the first motor passes through the interior of the first long plate and is fixedly connected to a second lead screw, a first adjusting block is threaded and slidably connected to the second lead screw, a first electric cylinder is fixedly connected to the bottom end of the first adjusting block, and the piston rod of the first electric cylinder is fixedly connected to the top of the glue box.

[0008] By adopting the above technical solution, the output shaft of the first motor can drive the second lead screw to rotate, which can realize the left and right lateral movement of the first adjusting block, thereby flexibly adjusting the left and right position of the glue gun.

[0009] Optionally, a second long plate is fixedly connected to the top of the platform. The second long plate is located on one side of the fixed plate. A second motor is fixedly connected to the outer wall of one end of the second long plate. The output shaft of the second motor passes through the interior of the second long plate and is fixedly connected to a first lead screw. A second adjusting block is threaded and slidably mounted on the first lead screw. A movable platform is fixedly connected to the top of the second adjusting block.

[0010] By adopting the above technical solution, the output shaft of the second motor can drive the first lead screw to rotate, which can realize the forward and backward movement of the second adjusting block, thereby driving the LCD screen on the moving platform to move forward and backward. Combined with the left and right moving glue gun, the flexibility of glue dispensing can be improved.

[0011] Optionally, the top two sides of the mobile platform are symmetrically fixedly connected with reinforcing plates, and fastening screws are threaded through the reinforcing plates. One end of the fastening screw is fixedly connected with a spacer.

[0012] By adopting the above technical solution, the fastening screw can be moved by rotating it clockwise. Together with the spacer, it can be fixed against the outer wall of the LCD screen to prevent the LCD screen from shifting.

[0013] Optionally, a feed inlet is fixedly connected to one side of the top of the glue box.

[0014] By adopting the above technical solution, it is beneficial to add adhesive.

[0015] Optionally, the scraper is a hollow cylindrical structure, and the diameter of the central hole of the scraper is adapted to the diameter of the gun needle.

[0016] By adopting the above technical solution, the effect of scraping off residual adhesive on the gun needle can be improved.

[0017] Optionally, a total of eight circular holes are provided, and the eight circular holes are distributed in a ring shape.

[0018] By adopting the above technical solution, the scraped waste adhesive enters the inside of the recycling tank through the round hole for collection.

[0019] Optionally, the scraper is made of fluororubber.

[0020] By adopting the above technical solutions, the corrosion resistance of the scraper can be improved and its service life can be extended.

[0021] Compared with the prior art, the beneficial effects of the technical solution of this application are as follows:

[0022] The technical solution of this application enables the connection between the scraper and the piston rod of the second electric cylinder through the connecting block and the reinforcing block. The piston rod of the second electric cylinder can push the scraper to move up and down reciprocally, so that the scraper slides back and forth on the gun needle, which can scrape off the residual glue on the gun needle. The scraped residual glue enters the recycling groove inside the scraper through the round hole for recycling. Through the cooperation of the above structures, not only can the difficulty and number of times for workers to clean the gun needle be reduced, but also the waste of scraped residual glue can be avoided. Attached Figure Description

[0023] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0024] Figure 1 This is a schematic diagram of the overall structure of a glue spraying device for LCD screen production according to the present invention;

[0025] Figure 2 This is a bottom view of the first long plate of the adhesive spraying device for LCD screen production according to this utility model.

[0026] Figure 3 This is a cross-sectional view of the scraper of a glue spraying device for LCD screen production according to this utility model.

[0027] Figure 4 for Figure 1 A magnified schematic diagram of the structure of region A;

[0028] In the diagram: 1. First motor; 2. First long plate; 3. First adjusting block; 4. Fixed plate; 5. Fastening screw; 6. Moving table; 7. Table body; 8. Second long plate; 9. First lead screw; 10. Second adjusting block; 11. Spacer; 12. Reinforcing plate; 13. Second motor; 14. Glue box; 15. First electric cylinder; 16. Feed inlet; 17. Square plate; 18. Second electric cylinder; 19. Connecting block; 20. Reinforcing block; 21. Scraper; 22. Glue gun; 23. Second lead screw; 24. Gun needle; 25. Recycling tank; 26. Round hole. Detailed Implementation

[0029] Please see Figure 1-4 This utility model provides a technical solution: a glue spraying device for LCD screen production, including a platform 7 and a glue box 14. A glue gun 22 is fixedly connected to the bottom end of the glue box 14, and a gun needle 24 is fixedly connected to the bottom end of the glue gun 22. A square plate 17 is fixedly connected to one side of the outer wall of the glue box 14. A second electric cylinder 18 is fixedly connected to the bottom end of the square plate 17. A connecting block 19 is fixedly connected to the end face of the piston rod of the second electric cylinder 18. A reinforcing block 20 is fixedly connected to one side of the outer wall of the connecting block 19, located on the gun needle 24. A scraper 21 is slidably connected to the gun needle 24. The scraper 21 is fitted and fixedly connected to the reinforcing block 20. A recycling groove 25 is opened inside the scraper 21, and a round hole 26 is opened on the inner wall of the scraper 21. The round hole 26 communicates with the recycling groove 25.

[0030] In the technical solution of this utility model, such as Figure 1 and Figure 2 As shown, a fixed plate 4 is fixedly connected to the top of the platform 7. A first long plate 2 is fixedly connected to one side of the outer wall of the fixed plate 4. A first motor 1 is fixedly connected to the outer wall of the first long plate 2 away from the fixed plate 4. The output shaft of the first motor 1 passes through the interior of the first long plate 2 and is fixedly connected to a second lead screw 23. A first adjusting block 3 is threaded and slidably connected to the second lead screw 23. A first electric cylinder 15 is fixedly connected to the bottom end of the first adjusting block 3. The piston rod of the first electric cylinder 15 is fixedly connected to the top of the glue box 14. The output shaft of the first motor 1 can drive the second lead screw 23 to rotate, which can realize the left and right lateral movement of the first adjusting block 3, thereby flexibly adjusting the left and right position of the glue gun 22.

[0031] In the technical solution of this utility model, such as Figure 1 As shown, a second long plate 8 is fixedly connected to the top of the platform 7. The second long plate 8 is located on one side of the fixed plate 4. A second motor 13 is fixedly connected to the outer wall of one end of the second long plate 8. The output shaft of the second motor 13 passes through the interior of the second long plate 8 and is fixedly connected to a first lead screw 9. A second adjusting block 10 is threaded and slidably mounted on the first lead screw 9. A movable platform 6 is fixedly connected to the top of the second adjusting block 10. The output shaft of the second motor 13 can drive the first lead screw 9 to rotate, which can realize the back-and-forth movement of the second adjusting block 10, thereby driving the LCD screen on the movable platform 6 to move back and forth. Combined with the left-and-right moving dispensing gun 22, the flexibility of dispensing can be improved.

[0032] In the technical solution of this utility model, such as Figure 1As shown, the top two sides of the moving platform 6 are symmetrically fixed with reinforcing plates 12. The reinforcing plates 12 are threaded with fastening screws 5, and one end of the fastening screws 5 is fixedly connected with a spacer 11. By rotating the fastening screws 5 clockwise, the fastening screws 5 can be moved. Together with the spacer 11, they abut against the outer wall of the LCD screen, which can fix the LCD screen and prevent it from shifting.

[0033] In the technical solution of this utility model, such as Figure 4 As shown, a feed inlet 16 is fixedly connected to one side of the top of the glue box 14; this facilitates the addition of glue.

[0034] In the technical solution of this utility model, such as Figure 1 As shown, the scraper 21 has a hollow cylindrical structure, and the diameter of the central hole of the scraper 21 is matched with the diameter of the needle 24; this can improve the scraping effect on the residual glue on the needle 24.

[0035] In the technical solution of this utility model, such as Figure 3 As shown, there are eight circular holes 26 in total, which are arranged in a ring shape; the scraped waste glue enters the inside of the recycling tank 25 through the circular holes 26 for collection.

[0036] In the technical solution of this utility model, not shown, the scraper 21 is made of fluororubber; this is beneficial to improving the corrosion resistance of the scraper 21 and extending its service life.

[0037] In use, first, the LCD screen is installed on the moving platform 6. Then, the first motor 1 is started by an external power switch. The output shaft of the first motor 1 drives the second lead screw 23 to rotate, enabling the first adjusting block 3 to move horizontally left and right, thus flexibly adjusting the left and right position of the dispensing gun 22. The output shaft of the second motor 13 drives the first lead screw 9 to rotate, enabling the second adjusting block 10 to move back and forth, thereby moving the LCD screen on the moving platform 6 back and forth. Combined with the left and right movement of the dispensing gun 22, this improves the dispensing efficiency. The flexibility of the dispensing process is such that after the dispensing is completed, the piston rod of the second electric cylinder 18 can push the scraper 21 to slide back and forth on the needle 24, which can scrape off the residual glue on the needle 24. Since the diameter of the central hole of the scraper 21 is matched with the diameter of the needle 24, the scraped residual glue will be squeezed when the scraper 21 moves. When it passes through the round opening 26, the squeezed residual glue will enter the recycling tank 25 for recycling. Through the cooperation of the above structures, not only can the difficulty and number of times the staff cleans the needle 24 be reduced, but also the waste of scraped residual glue can be avoided.

[0038] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A glue spraying device for LCD screen production, characterized in that: The device includes a platform (7) and a glue box (14). A glue gun (22) is fixedly connected to the bottom end of the glue box (14). A gun needle (24) is fixedly connected to the bottom end of the glue gun (22). A square plate (17) is fixedly connected to one side of the outer wall of the glue box (14). A second electric cylinder (18) is fixedly connected to the bottom end of the square plate (17). A connecting block (19) is fixedly connected to the end face of the piston rod of the second electric cylinder (18). A reinforcing block (20) is fixedly connected to one side of the outer wall of the connecting block (19) on the gun needle (24). A scraper (21) is slidably connected to the gun needle (24). The scraper (21) is fitted and fixedly connected to the reinforcing block (20). A recycling groove (25) is opened inside the scraper (21). A round hole (26) is opened on the inner wall of the scraper (21). The round hole (26) is connected to the recycling groove (25).

2. The adhesive spraying device for liquid crystal display production according to claim 1, characterized in that, A fixed plate (4) is fixedly connected to the top of the platform (7). A first long plate (2) is fixedly connected to one side of the outer wall of the fixed plate (4). A first motor (1) is fixedly connected to the outer wall of the first long plate (2) away from the fixed plate (4). The output shaft of the first motor (1) passes through the interior of the first long plate (2) and is fixedly connected to a second lead screw (23). A first adjusting block (3) is threaded and slidably connected to the second lead screw (23). A first electric cylinder (15) is fixedly connected to the bottom end of the first adjusting block (3). The piston rod of the first electric cylinder (15) is fixedly connected to the top of the plastic box (14).

3. The adhesive spraying device for liquid crystal display production according to claim 1, characterized in that, The top of the platform (7) is fixedly connected to a second long plate (8), which is located on one side of the fixed plate (4). A second motor (13) is fixedly connected to the outer wall of one end of the second long plate (8). The output shaft of the second motor (13) passes through the interior of the second long plate (8) and is fixedly connected to a first lead screw (9). A second adjusting block (10) is threaded and slidably mounted on the first lead screw (9). A moving platform (6) is fixedly connected to the top of the second adjusting block (10).

4. The adhesive spraying device for liquid crystal display production according to claim 3, characterized in that, The top two sides of the mobile platform (6) are symmetrically fixed with reinforcing plates (12), and fastening screws (5) are threaded through the reinforcing plates (12). One end of the fastening screws (5) is fixedly connected with a spacer (11).

5. The adhesive spraying device for liquid crystal display production according to claim 1, characterized in that, The top side of the glue box (14) is fixedly connected to the feed port (16).

6. The adhesive spraying device for liquid crystal display production according to claim 1, characterized in that, The scraper (21) is a hollow cylindrical structure, and the diameter of the central hole of the scraper (21) is matched with the diameter of the gun needle (24).

7. The adhesive spraying device for liquid crystal display production according to claim 1, characterized in that, There are a total of eight circular holes (26), and the eight circular holes (26) are distributed in a ring shape.

8. The adhesive spraying device for liquid crystal display production according to claim 1, characterized in that, The scraper (21) is made of fluororubber.

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