A dispensing device for LCD screen production

Abstract

This utility model relates to the field of liquid crystal display screen dispensing technology, and discloses a dispensing device for liquid crystal display screen production, including a fixed frame. A support component is provided on the inner side of the fixed frame. The support component includes a support plate and a mounting plate. Limiting grooves are formed on both sides of the top of the support plate. Limiting blocks are fixed on both sides of the bottom of the mounting plate. The mounting plate is slidably engaged with the top of the support plate by the limiting blocks. Limiting grooves are formed on both sides of the top of the mounting plate. Limiting blocks are slidably engaged in the limiting grooves. A receiving box is fixed on the top of the limiting blocks. After dispensing the liquid crystal display screen, the dispensing head can be moved above the receiving box, so that the residual glue on the dispensing head can drip directly into the receiving box. The receiving box collects the residual glue, avoiding contamination of the rotating disk and the mounting plate by the glue, thereby ensuring convenient dispensing operations for subsequent liquid crystal display screens.

Description

Technical Field

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

[0002] A liquid crystal display (LCD) is a display device that controls light transmission by stimulating liquid crystal molecules with an electric current to change their alignment. One of the processing steps in the production of an LCD is the application of adhesive.

[0003] A search revealed that patent publication number CN222678592U mentions: "A dispensing device for processing liquid crystal displays, comprising a clamping assembly and a dispensing assembly. The clamping assembly includes a slotted plate, a lifting plate, an electric telescopic rod, a first motor, a turntable, and a fixture. The dispensing assembly includes a driving component, a bidirectional lead screw, a movable sleeve, and a dispensing head. By setting the slotted plate, lifting plate, electric telescopic rod, first motor, turntable, and fixture, the fixture clamps and positions the display screen on the turntable, ensuring stability during dispensing. The first motor drives the turntable to rotate, enabling the display screen to be rotated for dispensing on the other two sides. By setting the driving component, bidirectional lead screw, movable sleeve, and dispensing head, the bidirectional lead screw drives the adjustment of the position of the movable sleeve and the dispensing head, so that the two dispensing heads move synchronously to adjust the spacing, and cooperate with the display screen to effectively ensure that the adjusted dispensing head is aligned with the dispensing edge of the display screen."

[0004] In the aforementioned prior art, after the dispensing of adhesive to the display screen is completed, because the dispensing head's outlet faces downwards, residual adhesive inside the dispensing head or at the outlet may fall and drip onto the turntable or lifting plate due to gravity. Over time, this can cause contamination of the turntable or lifting plate, thus affecting subsequent dispensing operations on the display screen. Although waste adhesive can be cleaned directly on the turntable and lifting plate, there are problems such as a relatively small cleaning space, limited operation, and difficulty in removing the turntable and lifting plate for thorough cleaning. Utility Model Content

[0005] To overcome the shortcomings mentioned above, this utility model aims to provide a technical solution that can solve the above problems.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a dispensing device for LCD screen production, comprising a fixed frame, a first moving component, a second moving component, and a dispensing component. A support component is provided inside the fixed frame, the support component comprising a support plate and a mounting plate. Limiting grooves are formed on both sides of the top of the support plate, and limiting blocks are fixed on both sides of the bottom of the mounting plate. The mounting plate is slidably engaged with the top of the support plate via the limiting blocks. Limiting grooves are formed on both sides of the top of the mounting plate, and limiting blocks are slidably engaged in the limiting grooves. A receiving box is fixed to the top of the limiting blocks.

[0007] As a further embodiment of this utility model: the top of the mounting plate is also provided with a plurality of locking screws, and the top of the support plate is provided with locking screw holes at positions corresponding to each locking screw. The locking screws are threaded into the locking screw holes of the support plate after passing through the mounting plate.

[0008] As a further embodiment of this utility model: the size of the mounting plate is the same as that of the support plate, and sliders are fixed on both the left and right sides of the support plate. Slide grooves are provided on both sides of the inner wall of the fixing frame and at positions corresponding to each slider, and the sliders are slidably connected in the slide grooves.

[0009] As a further embodiment of this utility model: a servo motor three is installed on one side of the mounting plate, the power output shaft of the servo motor three movably passes through the movable chamber opened inside the mounting plate and is connected to a rotating rod, the other end of the rotating rod is connected to a driving bevel gear, a rotating disk is provided on the top of the mounting plate, and a shaft is fixed at the center of the bottom of the rotating disk, the shaft movably passes through the interior of the movable chamber and is connected to a driven bevel gear, the driven bevel gear meshing with the driving bevel gear.

[0010] As a further embodiment of this utility model: an electric push rod is also installed at the center of the bottom wall of the fixed frame, and the top of the power output shaft of the electric push rod is fixed at the center of the bottom of the support plate.

[0011] As a further embodiment of this utility model: the moving component includes two fixing blocks 1 fixed on the top left side of the fixing frame, a servo motor 1 installed on one of the fixing blocks 1, and a lead screw rotatably connected between the two fixing blocks 1 and driven by the power output shaft of the servo motor 1. Two fixing blocks 2 are also fixed on the top right side of the fixing frame, and a fixing rod is fixed between the two fixing blocks 2.

[0012] As a further embodiment of this utility model: the second movable component includes two movable blocks, a connecting plate, two fixed plates, a second servo motor, and a bidirectional lead screw. One movable block is threadedly fitted with the lead screw, and the other movable block is slidably fitted with the fixed rod. The bottoms of the two movable blocks are slidably connected to the two sides of the top of the fixed frame. The connecting plate is fixed between the two movable blocks, and the two fixed plates are fixed to the tops of the two movable blocks. The second servo motor is mounted on one of the fixed plates. The bidirectional lead screw rotates to connect between the two fixed plates, and one end of the screw is connected to the servo motor drive of the second servo motor.

[0013] As a further embodiment of this utility model: the dispensing assembly includes two movable blocks, two movable plates, and two dispensing heads. The two movable blocks are slidably connected to the top of the connecting plate and respectively fitted with two opposite threads of the bidirectional lead screw. The two movable plates are slidably connected to the bottom of the connecting plate, and the top of the movable plates is fixedly connected to the movable blocks via connecting blocks. The connecting plate has a through-hole for easy sliding of the connecting blocks. The two dispensing heads are respectively installed at the bottom of the two movable plates, and the dispensing heads are connected to the glue supply equipment via pipes.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] In this application, through the design of the support plate, mounting plate, limit block two, receiving box and limit block one, and the design of moving component one and moving component two, after the dispensing of the LCD screen is completed, the dispensing head can be moved above the receiving box, so that the residual glue on the dispensing head can drip directly into the receiving box. The receiving box is used to collect the residual glue, avoiding contamination of the rotating disk and mounting plate by the glue, thus ensuring convenient subsequent dispensing operations of the LCD screen.

[0016] Meanwhile, the mounting plate can be completely removed from the support plate along with the rotating disk. By removing the mounting plate for cleaning, a more thorough cleaning of the rotating disk and the mounting plate can be achieved, further facilitating subsequent use. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model;

[0018] Figure 2 This is a three-dimensional structural diagram of the receiving box, mounting plate and support plate of this utility model after they are disassembled.

[0019] Figure 3 This is a side sectional view of the mounting plate of this utility model;

[0020] Figure 4This is a three-dimensional structural diagram of the interconnection of the first movable component and the dispensing component of this utility model.

[0021] The reference numerals and names in the figure are as follows:

[0022] 1. Fixed frame; 101. Slide groove; 2. Moving component one; 201. Fixed block one; 202. Servo motor one; 203. Lead screw; 204. Fixed block two; 205. Fixed rod; 3. Moving component two; 301. Movable block one; 302. Connecting plate; 303. Fixed plate; 304. Servo motor two; 305. Bidirectional lead screw; 4. Support component; 401. Support plate; 4011. Slider; 402. Mounting plate; 5. Receiving box; 501. Limiting block one; 6. Servo motor three; 601. Rotating rod; 602. Driving bevel gear; 7. Rotating disk; 701. Driven bevel gear; 8. Limiting groove one; 9. Limiting block two; 10. Limiting groove two; 11. Locking screw hole; 12. Locking screw; 13. Electric push rod; 14. Movable chamber; 15. Movable block two; 16. Movable plate; 17. Dispensing head. Detailed Implementation

[0023] 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.

[0024] Please see Figure 1-4A dispensing device for LCD screen production includes a fixed frame 1, a first movable component 2, a second movable component 3, and a dispensing assembly. A support component 4 is provided inside the fixed frame 1. The support component 4 includes a support plate 401 and a mounting plate 402. Limiting grooves 10 are formed on both sides of the top of the support plate 401. Limiting blocks 9 are fixed on both sides of the bottom of the mounting plate 402. The mounting plate 402 is slidably engaged with the top of the support plate 401 by the limiting blocks 9. The limiting blocks 9 are T-shaped, and the limiting grooves 10 are also T-shaped. When the limiting blocks 9 slide into the limiting grooves 10, the mounting plate 402 can slide more smoothly. On the one hand, it provides positioning guidance, and on the other hand, it makes the mounting plate 402 more stable on the support plate 401. Limiting grooves 8 are opened on both sides of the top of the mounting plate 402. Limiting blocks 501 are slidably engaged in the limiting grooves 8. A receiving box 5 is fixed on the top of the limiting block 501. The receiving box 5 is slidably engaged on the top of the mounting plate 402 through the limiting block 501. The limiting block 501 is T-shaped, and the limiting groove 8 is also T-shaped. When the limiting block 501 slides into the limiting groove 8, on the one hand, it can provide positioning guidance for the sliding of the receiving box 5, and on the other hand, it can make the receiving box 5 more stable on the mounting plate 402.

[0025] Please see Figure 2 and Figure 2 In this embodiment, a plurality of locking screws 12 are also provided through the top of the mounting plate 402, and a locking screw hole 11 is provided at the top of the support plate 401 at a position corresponding to each locking screw 12. The locking screw 12 is threaded into the locking screw hole 11 of the support plate 401 after passing through the mounting plate 402.

[0026] Specifically, after the mounting plate 402 is placed on top of the support plate 401, in order to improve the stability of the mounting plate 402, the mounting plate 402 is fixed to the support plate 401 by the locking screw 12. Furthermore, the mounting plate 402 can be removed from the support plate 401 by unscrewing the locking screw 12, which facilitates the subsequent thorough cleaning of the mounting plate 402 and the rotating disk 7 on it.

[0027] Please see Figure 1 , Figure 2 and Figure 3 In this embodiment, the size of the mounting plate 402 is the same as that of the support plate 401, and sliders 4011 are fixed on both the left and right sides of the support plate 401. Slide grooves 101 are provided on both sides of the inner wall of the fixing frame 1 at positions corresponding to each slider 4011. The sliders 4011 are slidably connected in the slide grooves 101. An electric push rod 13 is also installed at the center of the bottom wall of the fixing frame 1. The top of the power output shaft of the electric push rod 13 is fixed at the center of the bottom of the support plate 401.

[0028] Specifically, by activating the electric push rod 13, the entire support assembly 4 can be lifted, making it easier for the LCD screen held on the rotating disk 7 to approach the dispensing head 17, facilitating the dispensing head 17 to perform dispensing operations on the LCD screen. When the support plate 401 moves inside the fixed frame 1, the slider 4011 is placed in the slide groove 101, which ensures the stability of the support plate 401 during movement, thereby ensuring the stability of the LCD screen held on the rotating disk 7.

[0029] Please see Figure 1 , Figure 2 and Figure 3 In this embodiment, a servo motor 6 is installed on one side of the mounting plate 402. The power output shaft of the servo motor 6 extends through the movable chamber 14 inside the mounting plate 402 and is connected to a rotating rod 601. The other end of the rotating rod 601 is connected to a driving bevel gear 602. A rotating disk 7 is provided on the top of the mounting plate 402. A shaft is fixed at the center of the bottom of the rotating disk 7. The shaft extends through the movable chamber 14 and is connected to a driven bevel gear 701. The driven bevel gear 701 meshes with the driving bevel gear 602.

[0030] Specifically, the top of the rotating disk 7 is also equipped with a clamp, which is used to position and hold the LCD screen to maintain stability, facilitating subsequent dispensing operations. When the rotating disk 7 needs to rotate to change the dispensing position of the LCD screen held on its top, it can be achieved by starting the servo motor 6. After the servo motor 6 is started, its power output shaft can drive the rotating rod 601 to rotate, thereby driving the active bevel gear 602 to rotate. The rotation of the active bevel gear 602 drives the driven bevel gear 701 that meshes with it to rotate, thereby using the shaft to drive the rotating disk 7 to rotate on the top of the mounting plate 402.

[0031] Please see Figure 1 and Figure 4 In this embodiment, the moving component 2 includes two fixing blocks 201 fixed on the top left side of the fixing frame 1, a servo motor 202 mounted on one of the fixing blocks 201, and a lead screw 203 rotatably connected between the two fixing blocks 201 and driven by the power output shaft of the servo motor 202. Two fixing blocks 204 are also fixed on the top right side of the fixing frame 1, and a fixing rod 205 is fixed between the two fixing blocks 204.

[0032] Specifically, after the servo motor 202 is started, it can drive the lead screw 203 to rotate by rotating its power output shaft in the forward or reverse direction, thereby driving the movable block 301 threaded with it to slide on the top of the fixed frame 1. When the movable block 301 moves, it can drive the moving component 3 to adjust its vertical position on the fixed frame 1, thereby facilitating the dispensing head 17 to dispense glue to different positions of the LCD screen, and also facilitating the dispensing head 17 to be driven above the receiving box 5.

[0033] Please see Figure 1 and Figure 4 In this embodiment, the second movable component 3 includes two movable blocks 301, a connecting plate 302, two fixed plates 303, a second servo motor 304, and a bidirectional lead screw 305. One movable block 301 is threadedly fitted with the lead screw 203, and the other movable block 301 is slidably fitted with the fixed rod 205. The bottoms of the two movable blocks 301 are slidably connected to the two sides of the top of the fixed frame 1. The connecting plate 302 is fixed between the two movable blocks 301, and the two fixed plates 303 are fixed to the tops of the two movable blocks 301. The second servo motor 304 is mounted on one of the fixed plates 303. The bidirectional lead screw 305 rotates between the two fixed plates 303, with one end connected to the servo motor 304. The dispensing assembly includes two movable blocks 15, two movable plates 16, and two dispensing heads 17. The two movable blocks 15 are slidably connected to the top of the connecting plate 302 and respectively sleeved with the two opposite threads of the bidirectional lead screw 305. The two movable plates 16 are slidably connected to the bottom of the connecting plate 302, and the top of the movable plates 16 is fixedly connected to the movable blocks 15 through the connecting blocks. The connecting plate 302 has a through-hole to facilitate the sliding of the connecting blocks. The two dispensing heads 17 are respectively installed at the bottom of the two movable plates 16, and the dispensing heads 17 are connected to the glue supply equipment through pipes (the glue supply equipment is one of the conventional structures of a dispensing machine, so it is not shown in the figure. Its glue supply principle and structure are well known to those skilled in the art, so it will not be described in detail here).

[0034] Specifically, after the servo motor 2 304 is started, it can drive the bidirectional lead screw 305 to rotate forward or backward, thereby causing the two movable blocks 2 15 to move closer or further apart on the connecting plate 302. When the two movable blocks 2 15 move closer together, they can drive the two dispensing heads 17 to move closer together, and vice versa. This allows for convenient dispensing of glue to different positions on the LCD screen. When the two dispensing heads 17 move further apart to their endpoint, they are positioned above the two receiving boxes 5, allowing the glue dripping from the dispensing heads 17 to fall into the receiving boxes 5. When the movable blocks 2 15 are moving, since the bottom of the movable blocks 2 15 is fixed to the movable plate 16 through the connecting block, the movable blocks 2 15 can drive the movable plate 16 to move through the connecting block. The connecting block moves within the through-hole, thus facilitating stable movement of the dispensing heads 17.

[0035] In use, by driving the moving component 1 2 and the moving component 2 3, the two dispensing heads 17 can be moved above the two receiving boxes 5 respectively. When there is residual glue inside the dispensing head 17 or at the dispensing port, the glue will flow downward and drip directly into the receiving box 5, thereby collecting the residual glue using the receiving box 5, avoiding glue dripping onto the mounting plate 402 or the rotating disk 7 and causing pollution. The receiving box 5 can also be pulled out from the mounting plate 402, which makes it convenient to uniformly process the waste glue collected in the receiving box 5.

[0036] When a thorough cleaning of the mounting plate 402 and the rotating disk 7 is required, the operator can loosen multiple locking screws 12 to unlock the mounting plate 402. Then, the mounting plate 402 can be pulled out from the support plate 401, causing the second limiting block 9 to exit from the second limiting groove 10. Once the second limiting block 9 has completely exited from the second limiting groove 10, the mounting plate 402 can be pulled out from inside the fixed frame 1. This allows the operator to perform a thorough cleaning of the mounting plate 402 and the rotating disk 7 from the outside, freeing them from the confinement of cleaning within the fixed frame 1 and achieving a better cleaning effect.

[0037] It should be noted that the dispensing process of this dispensing device is common knowledge in the field, and its working principle is a well-known technology, which is also mentioned in patent CN222678592U. Therefore, it will not be described in detail in this application.

[0038] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A dispensing device for liquid crystal display production, comprising a fixed frame (1), a moving assembly one (2), a moving assembly two (3) and a dispensing assembly, characterized in that, The inner side of the fixed frame (1) is provided with a support component (4), which includes a support plate (401) and a mounting plate (402); The support plate (401) has two limit grooves (10) on both sides of its top, and the mounting plate (402) has two limit blocks (9) fixed on both sides of its bottom. The mounting plate (402) is slidably engaged with the top of the support plate (401) by the limit blocks (9). The mounting plate (402) has two limit grooves (8) on both sides of its top, and a limit block (501) is slidably engaged in the limit groove (8). A receiving box (5) is fixed on the top of the limit block (501).

2. The point glue device for producing liquid crystal display screen according to claim 1, characterized in that, The top of the mounting plate (402) is also provided with a plurality of locking screws (12), and the top of the support plate (401) is provided with locking screw holes (11) at positions corresponding to each locking screw (12). The locking screws (12) pass through the mounting plate (402) and are threaded into the locking screw holes (11) of the support plate (401).

3. The point glue device for producing liquid crystal display screen according to claim 1, characterized in that, The mounting plate (402) has the same size as the support plate (401), and sliders (4011) are fixed on both the left and right sides of the support plate (401). Slide grooves (101) are provided on both sides of the inner wall of the fixing frame (1) at positions corresponding to each slider (4011), and the sliders (4011) are slidably connected in the slide grooves (101).

4. The point glue device for producing liquid crystal display screen according to claim 1, characterized in that, A servo motor (6) is mounted on one side of the mounting plate (402). The power output shaft of the servo motor (6) extends through the movable chamber (14) inside the mounting plate (402) and is connected to a rotating rod (601). The other end of the rotating rod (601) is connected to a driving bevel gear (602). A rotating disk (7) is provided on the top of the mounting plate (402). A shaft is fixed at the center of the bottom of the rotating disk (7). The shaft extends through the movable chamber (14) and is connected to a driven bevel gear (701). The driven bevel gear (701) meshes with the driving bevel gear (602).

5. The point glue device for producing liquid crystal display screen according to claim 1, characterized in that, An electric push rod (13) is also installed at the center of the bottom wall of the fixed frame (1), and the top of the power output shaft of the electric push rod (13) is fixed at the center of the bottom of the support plate (401).

6. The point glue device for producing liquid crystal display screen according to claim 1, characterized in that, The moving component 1 (2) includes two fixing blocks 1 (201) fixed on the top left side of the fixing frame (1), a servo motor 1 (202) installed on one of the fixing blocks 1 (201), and a lead screw (203) rotatably connected between the two fixing blocks 1 (201) and driven by the power output shaft of the servo motor 1 (202). Two fixing blocks 2 (204) are also fixed on the top right side of the fixing frame (1), and a fixing rod (205) is fixed between the two fixing blocks 2 (204).

7. The point glue device for producing liquid crystal display screen according to claim 6, characterized in that, The second moving component (3) includes two movable blocks (301), a connecting plate (302), two fixed plates (303), a servo motor (304), and a bidirectional lead screw (305). One movable block (301) is threadedly fitted with the lead screw (203), and the other movable block (301) is slidably fitted with the fixed rod (205). The bottoms of the two movable blocks (301) are slidably connected to the two sides of the top of the fixed frame (1). The connecting plate (302) is fixed between the two movable blocks (301). The two fixed plates (303) are fixed to the tops of the two movable blocks (301). The servo motor (304) is mounted on one of the fixed plates (303). The bidirectional lead screw (305) rotates to be connected between the two fixed plates (303), and one end is connected to the servo motor drive of the servo motor (304).

8. The point glue device for producing liquid crystal display screen according to claim 7, characterized in that, The dispensing assembly includes two movable blocks (15), two movable plates (16), and two dispensing heads (17). The two movable blocks (15) are slidably connected to the top of the connecting plate (302) and respectively sleeved with the two opposite threads of the bidirectional lead screw (305). The two movable plates (16) are slidably connected to the bottom of the connecting plate (302), and the top of the movable plate (16) is fixedly connected to the movable blocks (15) through the connecting blocks. The connecting plate (302) has a through-hole to facilitate the sliding of the connecting blocks. The two dispensing heads (17) are respectively installed at the bottom of the two movable plates (16), and the dispensing heads (17) are connected to the glue supply equipment through pipes.

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