Gluing device for processing liquid crystal display screen substrate

Abstract

The invention discloses a gluing device for liquid crystal display screen substrate processing, and belongs to the field of display screen gluing. The gluing device for processing the liquid crystal display screen substrate comprises a glue liquid barrel, and further comprises a fixing frame and a driving motor which are fixedly connected to the glue liquid barrel, and an adjusting air cylinder is connected to the fixing frame; the coating liquid driving mechanism is arranged in the glue liquid barrel, a cleaning mechanism is arranged on the side wall of the glue liquid barrel, the cleaning mechanism is electrically connected with the adjusting air cylinder, and a communicating pipe is communicated between the coating liquid driving mechanism and the cleaning mechanism; the linkage mechanism is arranged on the coating liquid driving mechanism, a sealing mechanism is arranged between the glue liquid cylinder and the fixing frame, and the coating liquid driving mechanism can drive the sealing mechanism to move along a set track through the linkage mechanism; the problems that dust on a display screen substrate before gluing is inconvenient to clean, the gluing height stability is poor, and a glue solution easily drops onto the substrate after gluing is completed can be solved.

Description

Technical Field

[0001] The invention relates to the technical field of display screen gluing, and in particular to a gluing device for processing a liquid crystal display screen substrate. Background Art

[0002] Liquid crystal display is a flat-panel display that uses the electro-optical effect of liquid crystals to display images. Its core principle is to change the arrangement of molecules inside the liquid crystal material through voltage, thereby controlling the transmission and blocking of light to display images. It has the characteristics of small size, thin thickness, light weight, low energy consumption, low operating voltage, no radiation, no flicker, and can be directly matched with CMOS integrated circuits; therefore, compared with traditional displays, it is more suitable for long-term use and is less likely to cause visual fatigue.

[0003] In order to protect and fix the display screen and ensure its stable operation in a complex usage environment, glue is usually applied between the substrate and the display screen. This can not only prevent dust, water vapor and other impurities from entering the interior of the display screen and extend the service life of the display screen, but also absorb the damage to the display screen during collision or vibration. In addition, glue can be applied to fill the gap between the display screen and the substrate to improve the heat conduction efficiency and the heat dissipation performance of the display screen.

[0004] Currently, before gluing the display substrate, the dust on the surface of the substrate needs to be cleaned, and then the substrate is glued during transportation. However, some dust will still fall onto the substrate during transportation, affecting the quality of the finished display. In addition, during the gluing process, due to the curved surface of the display, the gluing is highly unstable. After the gluing is completed, some glue may drip onto the substrate under the action of gravity, affecting the bonding strength and stability of the display. Summary of the invention

[0005] The purpose of the present invention is to solve the problems in the prior art that the dust on the display screen substrate is inconvenient to clean before gluing, the gluing height stability is poor, and the glue is easy to drip onto the substrate after gluing is completed, and a gluing device for processing liquid crystal display screen substrates is proposed.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions: A glue coating device for processing liquid crystal display screen substrates includes a glue cylinder, and also includes: a fixing frame and a driving motor fixedly connected to the glue cylinder, the fixing frame is connected to an adjusting cylinder; a coating liquid driving mechanism arranged in the glue cylinder, a cleaning mechanism is arranged on the side wall of the glue cylinder, the cleaning mechanism is electrically connected to the adjusting cylinder, and a connecting pipe is connected between the coating liquid driving mechanism and the cleaning mechanism; a linkage mechanism is arranged on the coating liquid driving mechanism, a sealing mechanism is arranged between the glue cylinder and the fixing frame, and the coating liquid driving mechanism can drive the sealing mechanism to move along a predetermined track through the linkage mechanism.

[0007] In order to facilitate the coating of the glue on the display screen substrate, preferably, the coating drive mechanism includes a screw rotatably connected to the glue barrel, a control component is provided on the screw, a pressure plate is connected to the control component, a material receiving hopper is connected to the pressure plate, and a limit rod is slidably connected to the pressure plate inside the glue barrel; wherein, the top end of the screw is connected to the output end of the drive motor, a hole matching the material receiving hopper and the limit rod is provided on the pressure plate, and the outer wall of the pressure plate is tightly fitted with the inner wall of the glue barrel, and a one-way valve is provided inside the material receiving hopper.

[0008] In order to ensure the stability of glue coating, the control component further includes a movable ring, an installation groove is opened on the inner side of the movable ring, the interior of the installation groove is symmetrically fixedly connected with an electromagnetic plate, a plurality of groups of first hydraulic rods are fixedly connected to the electromagnetic plate, an end of the first hydraulic rod away from the electromagnetic plate is fixedly connected with an internal threaded ring, a first spring is fixedly connected between the internal threaded ring and the electromagnetic plate, wherein the internal threaded ring is meshed with the screw, the first spring is sleeved on the outside of the first hydraulic rod, the side of the internal threaded ring close to the electromagnetic plate is magnetic, and when the electromagnetic plate is energized, the magnetism is the same as the side close to the electromagnetic plate.

[0009] In order to facilitate the generation of gas during glue coating and reduce energy loss, it further includes a plurality of groups of gas compression components fixedly connected to the inner wall of the glue cylinder, a push plate matching the gas compression components is fixedly connected to the screw, and a connecting piece connected to the outer wall of the glue cylinder is fixedly connected to the gas compression components, wherein the gas compression components are elastic and are inclined on one side close to the rotation direction of the screw, and a stirring disk is fixedly connected to the bottom end of the screw.

[0010] In order to ensure the cleanliness of the display screen substrate, further, the cleaning mechanism includes a bracket fixedly connected to the outer side wall of the glue cylinder, the bracket is fixedly connected with a sliding variable resistance member and a sealing cylinder, the bottom end of the sliding variable resistance member is fixedly connected with a cleaning member, a second spring is fixedly connected between the cleaning member and the bracket, a first piston is slidably connected inside the sealing cylinder, a third spring is fixedly connected between the first piston and the sealing cylinder, and a blowing member is fixedly connected to the side of the first piston away from the third spring, wherein a connecting pipe is connected between the sliding variable resistance member and the sealing cylinder, one end of the connecting pipe is connected with the blowing member, and the other end is connected with the connecting member, the sliding variable resistance member is electrically connected to the adjusting cylinder, and when the sliding variable resistance member extends, the adjusting cylinder extends outward, and when the sliding variable resistance member contracts, the adjusting cylinder contracts inward, and the bottom end of the blowing member is inclined toward the cleaning member.

[0011] In order to facilitate driving the sealing mechanism, the linkage mechanism further includes an installation cavity opened at the bottom end of the screw, a movable shaft is slidably connected inside the installation cavity, a driving bevel gear is fixedly connected to the end of the movable shaft away from the installation cavity, a fourth spring is fixedly connected between the movable shaft and the installation cavity, and a slip ring is provided on the side of the screw close to the installation cavity, wherein a sealed spline connection is adopted between the movable shaft and the installation cavity, and the slip ring is connected to the first hydraulic rod through a pipeline.

[0012] In order to facilitate sealing of the glue coating head after the gluing is completed, the sealing mechanism further includes a guide rail fixedly connected between the glue cylinder and the fixed frame, the guide rail is slidably connected to a tooth plate inside, the glue cylinder is rotatably connected to a driving gear on the side close to the tooth plate, the shaft end of the driving gear extends to the interior of the glue cylinder, and the end is fixedly connected to a driven bevel gear meshing with the driving bevel gear, a connecting rod is fixedly connected to the tooth plate, and a sealing plate is fixedly connected to the end of the connecting rod away from the tooth plate, wherein a hole matching the connecting rod is opened on the guide rail, and the driving gear meshes with the tooth plate.

[0013] In order to facilitate the detection of the moving position of the sealing plate and the automatic resetting of the sealing plate, it further includes a mounting plate fixedly connected to the guide rail on the side close to the connecting rod, a fifth spring fixedly connected between the mounting plate and the connecting rod, a detection cylinder fixedly connected to the side of the mounting plate close to the connecting rod, a second piston slidingly connected inside the detection cylinder, a detection rod fixedly connected to the side of the second piston away from the mounting plate, a sixth spring fixedly connected between the second piston and the detection cylinder, wherein the detection rod and the detection cylinder are sealed and slidably connected, the side of the detection cylinder close to the second piston and the detection rod is connected to the slip ring through a pipeline, and the second hydraulic rod is connected to the first hydraulic rod through a pipeline.

[0014] In order to ensure the stability of the sealing plate when sealing the glue coating head, it further includes a second hydraulic rod fixedly connected to the side of the guide rail close to the driving gear, and the output end of the second hydraulic rod is fixedly connected to a locking block matching the tooth plate, and the second hydraulic rod is connected to the side of the detection cylinder close to the second piston and the sixth spring through a pipeline.

[0015] In order to ensure the sealing effect of the glue coating head, further, the bottom end of the glue liquid cylinder is connected to the glue coating head, and a one-way valve is arranged at one end of the glue coating head close to the glue liquid cylinder, and the bottom end of the glue coating head matches the sealing plate.

[0016] Compared with the prior art, the present invention provides a glue coating device for processing a liquid crystal display substrate, which has the following beneficial effects: 1. The glue coating device for processing liquid crystal display substrate can evenly and stably coat the glue on the display substrate through the coating driving mechanism, and stir the glue to avoid the precipitation of the glue to ensure the use effect of the glue. When adding glue, the glue can be directly added to the bottom of the pressing plate, and the pressing plate automatically adjusts its position according to the amount of glue to improve the stability of glue coating. In addition, during the coating process, the gas can be continuously compressed to clean the dust on the surface of the display substrate.

[0017] 2. The glue coating device for processing liquid crystal display substrates can clean the dust at the coating position through the cleaning mechanism when coating the substrate to ensure the cleanliness of the surface of the substrate during coating, thereby improving the quality of the finished display screen. At the same time, the height of the glue dispensing position can be detected and the glue dispensing height can be adjusted in time according to the height to ensure the effect and stability of the substrate glue dispensing. The gas compressed by the coating liquid driving mechanism can blow off the dust adhering to the substrate through the cleaning mechanism.

[0018] 3. The glue coating device for processing liquid crystal display substrates can mesh the linkage mechanism with the sealing mechanism through the coating driving mechanism, so as to move the sealing plate to the glue coating head and prevent the glue in the glue coating head from dripping onto the substrate after the glue coating stops. This can not only improve the quality of substrate glue coating, but also reduce the waste of glue and improve the appearance of the finished display screen. When coating, the sealing plate is automatically reset to ensure the stability of the glue coating.

[0019] The parts not involved in the device are the same as the prior art or can be implemented by the prior art. The present invention can overcome the problems that the dust on the display screen substrate is inconvenient to clean before gluing, the gluing height stability is poor, and the glue is easy to drip onto the substrate after the gluing is completed. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1A schematic diagram of the structure of a glue coating device for processing a liquid crystal display substrate proposed by the present invention Figure 1 ; Figure 2 This is a schematic diagram of the structure of the A part of the glue coating device for processing the liquid crystal display substrate proposed by the present invention. Figure 2 ; Figure 3 This is a schematic diagram of the internal structure of a glue cylinder in a glue coating device for processing a liquid crystal display substrate proposed by the present invention; Figure 4 This is a schematic cross-sectional structure diagram of a control component and a pressing plate in a glue coating device for processing a liquid crystal display substrate proposed by the present invention; Figure 5 This is a schematic cross-sectional structure diagram of a screw and a stirring disc in a glue coating device for processing a liquid crystal display substrate proposed by the present invention; Figure 6 A schematic diagram of a partial cross-sectional structure of a glue coating device for processing a liquid crystal display substrate proposed by the present invention; Figure 7 This is a partial structural schematic diagram of a glue coating device for processing a liquid crystal display substrate proposed by the present invention; Figure 8 A glue coating device for processing a liquid crystal display substrate proposed by the present invention Figure 7 Schematic diagram of a partial cross-section structure.

[0021] In the figure: 1, glue cylinder; 2, fixing frame; 3, adjusting cylinder; 4, driving motor; 5, glue coating head; 6, screw; 7, control component; 71, movable ring; 72, mounting groove; 73, electromagnetic plate; 74, first hydraulic rod; 75, first spring; 76, internal thread ring; 77, sealing strip; 8, pressing plate; 9, receiving hopper; 10, limiting rod; 11, gas compression element; 12, push plate; 13, connecting element; 14, stirring plate; 15, bracket; 16, sliding variable resistance element; 17, cleaning element; 18, second spring; 19, sealing cylinder; 20, first piston; 21. Third spring; 22. Blowing piece; 23. Connecting pipe; 24. Connecting pipe; 25. Mounting chamber; 26. Movable shaft; 27. Driving bevel gear; 28. Fourth spring; 29. ​​Slip ring; 30. Sealing mechanism; 301. Guide rail; 302. Tooth plate; 303. Driving gear; 304. Driven bevel gear; 305. Connecting rod; 306. Sealing plate; 307. Mounting plate; 308. Fifth spring; 309. Detection cylinder; 310. Second piston; 311. Detection rod; 312. Sixth spring; 313. Second hydraulic rod; 314. Locking block. DETAILED DESCRIPTION

[0022] 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.

[0023] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0024] Example: Reference Figure 1-Figure 8 A glue coating device for processing liquid crystal display substrates includes a glue cylinder 1, a feeding port is provided on the glue cylinder 1, the feeding port is located above a receiving hopper 9, and the size of the receiving hopper 9 is larger than the size of the feeding port, and also includes: a fixing frame 2 and a driving motor 4 fixedly connected to the glue cylinder 1, and an adjusting cylinder 3 is connected to the fixing frame 2; a coating liquid driving mechanism is arranged in the glue cylinder 1, a cleaning mechanism is arranged on the side wall of the glue cylinder 1, the cleaning mechanism is electrically connected to the adjusting cylinder 3, and a connecting pipe 24 is connected between the coating liquid driving mechanism and the cleaning mechanism; a linkage mechanism is arranged on the coating liquid driving mechanism, a sealing mechanism 30 is arranged between the glue cylinder 1 and the fixing frame 2, and the coating liquid driving mechanism can drive the sealing mechanism 30 to move along a predetermined track through the linkage mechanism.

[0025] It should be explained that the device is fixed between the display screen substrate conveying device and the glue coating mobile device, and the adjusting cylinder 3 is fixed on the mobile device. This is a conventional method in the prior art and will not be described in detail here.

[0026] Reference Figure 1 , Figure 3 and Figure 4 The coating liquid driving mechanism includes a screw rod 6 rotatably connected to the glue liquid cylinder 1, a control component 7 is arranged on the screw rod 6, a pressure plate 8 is connected to the control component 7, a material receiving hopper 9 is connected to the pressure plate 8, and a limit rod 10 is slidably connected to the pressure plate 8 inside the glue liquid cylinder 1; wherein, the top end of the screw rod 6 is connected to the output end of the driving motor 4, a hole matching the material receiving hopper 9 and the limit rod 10 is opened on the pressure plate 8, and the outer wall of the pressure plate 8 is tightly fitted with the inner wall of the glue liquid cylinder 1, and a one-way valve is arranged inside the material receiving hopper 9.

[0027] It needs to be explained that the density of the pressing plate 8 is lower than the density of the glue liquid. When the glue liquid is added, it will flow to the bottom of the pressing plate 8 after passing through the receiving hopper 9 and the one-way valve. The pressing plate 8 will move upward under the action of buoyancy as the glue liquid in the glue liquid cylinder 1 increases. When the pressing plate 8 moves downward, the one-way valve is in a closed state, and the glue liquid will not flow to the top of the pressing plate 8.

[0028] Reference Figure 3-Figure 4 The control component 7 includes a movable ring 71, an installation groove 72 is opened on the inner side of the movable ring 71, and an electromagnetic plate 73 is symmetrically fixedly connected inside the installation groove 72. A plurality of first hydraulic rods 74 are fixedly connected to the electromagnetic plate 73. An end of the first hydraulic rod 74 away from the electromagnetic plate 73 is fixedly connected to an internal threaded ring 76, and a first spring 75 is fixedly connected between the internal threaded ring 76 and the electromagnetic plate 73, wherein the internal threaded ring 76 is meshed with the screw 6, and the first spring 75 is sleeved on the outside of the first hydraulic rod 74. The side of the internal threaded ring 76 close to the electromagnetic plate 73 is magnetic, and when the electromagnetic plate 73 is energized, the magnetism is the same as the side close to the electromagnetic plate 73.

[0029] When applying glue to the substrate, first drive the motor 4 to drive the screw 6 to rotate, and then energize the electromagnetic plate 73 to make it magnetic, thereby generating a repulsive force between the electromagnetic plate 73 and the internal threaded ring 76, thereby driving the internal threaded ring 76 to engage with the screw 6, thereby driving the pressure plate 8 to move downward to compress the glue liquid, so that the glue liquid in the glue liquid cylinder 1 can be dripped onto the substrate. In this process, under the action of the sealing strip 77, the glue liquid can be prevented from flowing into the inside of the movable ring 71.

[0030] Reference Figure 3 , and also includes multiple groups of gas compression components 11 fixedly connected to the inner wall of the glue cylinder 1, a push plate 12 matching the gas compression components 11 is fixedly connected to the screw 6, and a connecting piece 13 connected to the outer wall of the glue cylinder 1 is fixedly connected to the gas compression components 11, wherein the gas compression components 11 are elastic and are inclined on one side close to the rotation direction of the screw 6, and a stirring disk 14 is fixedly connected to the bottom end of the screw 6.

[0031] When the screw 6 rotates, the push plate 12 is driven to rotate. When the push plate 12 contacts the gas compressor 11, the gas compressor 11 is compressed and the compressed gas is delivered to the connecting piece 13. It should be explained that the inlet end of the gas compressor 11 is connected to the clean air, and when the push plate 12 rotates, at least one group of push plates 12 can contact the gas compressor 11 (that is, compressed gas can be continuously generated). This is a conventional method in the prior art and will not be elaborated on. When the screw 6 rotates, the stirring disk 14 is driven to rotate, which can stir the glue in the glue barrel 1 to prevent the glue from precipitating in the glue barrel 1, so as to ensure the use effect of the glue.

[0032] Reference Figure 1 , Figure 2 and Figure 6 The cleaning mechanism includes a bracket 15 fixedly connected to the outer wall of the glue cylinder 1, a sliding variable resistor 16 and a sealing cylinder 19 are fixedly connected to the bracket 15, a cleaning member 17 is fixedly connected to the bottom end of the sliding variable resistor 16, a second spring 18 is fixedly connected between the cleaning member 17 and the bracket 15, a first piston 20 is slidably connected inside the sealing cylinder 19, a third spring 21 is fixedly connected between the first piston 20 and the sealing cylinder 19, and a blowing member 22 is fixedly connected to the side of the first piston 20 away from the third spring 21, wherein a connecting pipe 23 is connected between the sliding variable resistor 16 and the sealing cylinder 19, one end of the connecting pipe 24 is connected to the blowing member 22, and the other end is connected to the connecting member 13, the sliding variable resistor 16 is electrically connected to the adjusting cylinder 3, and when the sliding variable resistor 16 extends, the adjusting cylinder 3 extends outward, when the sliding variable resistor 16 contracts, the adjusting cylinder 3 contracts inward, and the bottom end of the blowing member 22 is inclined toward the cleaning member 17.

[0033] Before applying glue, the cleaning member 17 is placed on the substrate with glue, the sliding variable resistor 16 is in a sealed state, and a delay sensor is arranged between the sliding variable resistor 16 and the adjusting cylinder 3. This is a conventional method in the prior art and is therefore not elaborated on. It should be accepted that the cleaning member 17 is a cleaning tool dedicated to the substrate, and the elastic force of the second spring 18 will not cause damage to the substrate by the cleaning member 17. While ensuring that the cleaning member 17 and the substrate can be in stable contact, the distance between the glue coating head 5 and the substrate can be adjusted by adjusting the cylinder 3 according to the height of the substrate surface to ensure the stability of the glue coating. While the cleaning member 17 cleans the substrate, the compressed gas blows the substrate through the blowing member 22 to further ensure the cleanliness of the substrate surface.

[0034] Reference Figure 3 and Figure 5 The linkage mechanism includes an installation cavity 25 opened at the bottom end of the screw rod 6, a movable shaft 26 is slidably connected inside the installation cavity 25, a driving bevel gear 27 is fixedly connected to the end of the movable shaft 26 away from the installation cavity 25, a fourth spring 28 is fixedly connected between the movable shaft 26 and the installation cavity 25, and a slip ring 29 is provided on the side of the screw rod 6 close to the installation cavity 25, wherein a sealed spline connection is adopted between the movable shaft 26 and the installation cavity 25, and the slip ring 29 is connected to the first hydraulic rod 74 through a pipeline.

[0035] When applying glue, the first hydraulic rod 74 is in an extended state, the movable shaft 26 is located above the inside of the installation cavity 25, and the driving bevel gear 27 is not engaged with the driven bevel gear 304. When the glue application is completed (the electromagnetic plate 73 is energized, and under the action of the first spring 75, the first hydraulic rod 74 is compressed and the movable shaft 26 is driven to extend outward), the driving bevel gear 27 is engaged with the driven bevel gear 304. The spline connection method is a conventional method in the prior art. The specific structure of the slip ring 29 can refer to the technical solution in the prior art, which can be known to technicians in this field and will not be described in detail.

[0036] Reference Figure 1 , Figure 3 , Figure 7 and Figure 8 The sealing mechanism 30 includes a guide rail 301 fixedly connected between the glue cylinder 1 and the fixed frame 2, a tooth plate 302 is slidably connected inside the guide rail 301, a driving gear 303 is rotatably connected to the side of the glue cylinder 1 close to the tooth plate 302, the shaft end of the driving gear 303 extends to the inside of the glue cylinder 1, and the end is fixedly connected to a driven bevel gear 304 meshing with the driving bevel gear 27, a connecting rod 305 is fixedly connected to the tooth plate 302, and the connecting rod 305 is away from the tooth plate 302. One end is fixedly connected with a sealing plate 306, wherein a hole matching the connecting rod 305 is opened on the guide rail 301, the driving gear 303 is meshed with the tooth plate 302, and also includes a mounting plate 307 fixedly connected to the guide rail 301 near the connecting rod 305, a fifth spring 308 is fixedly connected between the mounting plate 307 and the connecting rod 305, a detection cylinder 309 is fixedly connected to the side of the mounting plate 307 near the connecting rod 305, and a second movable spring 308 is slidably connected inside the detection cylinder 309. Plug 310, a detection rod 311 is fixedly connected to the side of the second piston 310 away from the mounting plate 307, and a sixth spring 312 is fixedly connected between the second piston 310 and the detection cylinder 309, wherein the detection rod 311 and the detection cylinder 309 are sealed and slidably connected, and the side of the detection cylinder 309 close to the second piston 310 and the detection rod 311 is connected to the slip ring 29 through a pipeline, and the bottom end of the glue cylinder 1 is connected to the glue coating head 5, and a one-way valve is provided at one end of the glue coating head 5 close to the glue cylinder 1, and the bottom end of the glue coating head 5 matches the sealing plate 306, and also includes a second hydraulic rod 313 fixedly connected to the side of the guide rail 301 close to the driving gear 303, and the output end of the second hydraulic rod 313 is fixedly connected to a locking block 314 matching the tooth plate 302, the second hydraulic rod 313 and the detection cylinder 309 are connected to the side close to the second piston 310 and the sixth spring 312 through a pipeline, and the second hydraulic rod 313 and the first hydraulic rod 74 are connected through a pipeline.

[0037] When the driven bevel gear 304 rotates, it drives the driving gear 303 to rotate, and drives the tooth plate 302 to move toward the side of the glue coating head 5 until the sealing plate 306 moves to the bottom of the glue coating head 5 to seal it, thereby preventing the glue from dripping onto the substrate from the glue coating head 5 under the action of gravity when the glue coating is stopped; and when the sealing plate 306 moves to the specified position, the connecting rod 305 will drive the detection rod 311 and the second piston 310 to move into the detection cylinder 309, which can, on the one hand, disengage the driving bevel gear 27 from the driven bevel gear 304, and on the other hand, drive the locking block 314 to lock with the tooth plate 302 through the second hydraulic rod 313, thereby ensuring the stability of the seal between the sealing plate 306 and the glue coating head 5. When coating, under the action of the first hydraulic rod 74, the locking block 314 is driven to disengage with the tooth plate 302, and under the action of the fifth spring 308, the sealing plate 306 is disengaged from the glue coating head 5.

[0038] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A glue coating device for processing a liquid crystal display substrate, comprising a glue cylinder (1), characterized in that: Also includes: A fixing frame (2) and a driving motor (4) fixedly connected to the glue cylinder (1), wherein the fixing frame (2) is connected to an adjusting cylinder (3); A coating liquid driving mechanism is arranged in the glue liquid cylinder (1), a cleaning mechanism is arranged on the side wall of the glue liquid cylinder (1), the cleaning mechanism is electrically connected to the regulating cylinder (3), and a connecting pipe (24) is connected between the coating liquid driving mechanism and the cleaning mechanism; A linkage mechanism is arranged on the coating liquid driving mechanism, a sealing mechanism (30) is arranged between the glue cylinder (1) and the fixing frame (2), and the coating liquid driving mechanism can drive the sealing mechanism (30) to move along a predetermined track through the linkage mechanism; The coating liquid driving mechanism comprises a screw (6) rotatably connected to the inside of the glue liquid cylinder (1), a control assembly (7) is arranged on the screw (6), a pressing plate (8) is connected to the control assembly (7), a material receiving hopper (9) is connected to the pressing plate (8), and a limit rod (10) is slidably connected to the pressing plate (8) inside the glue liquid cylinder (1); The top end of the screw rod (6) is connected to the output end of the driving motor (4), the pressing plate (8) is provided with a hole matching the material receiving hopper (9) and the limit rod (10), and the outer wall of the pressing plate (8) is tightly fitted with the inner wall of the glue cylinder (1), and a one-way valve is provided inside the material receiving hopper (9); The control assembly (7) comprises a movable ring (71), an inner side of the movable ring (71) is provided with a mounting groove (72), the interior of the mounting groove (72) is symmetrically fixedly connected with an electromagnetic plate (73), a plurality of groups of first hydraulic rods (74) are fixedly connected to the electromagnetic plate (73), one end of the first hydraulic rod (74) away from the electromagnetic plate (73) is fixedly connected with an internal thread ring (76), and a first spring (75) is fixedly connected between the internal thread ring (76) and the electromagnetic plate (73), The internal threaded ring (76) is meshed with the screw rod (6), the first spring (75) is sleeved on the outside of the first hydraulic rod (74), the side of the internal threaded ring (76) close to the electromagnetic plate (73) has magnetism, and when the electromagnetic plate (73) is energized, the magnetism is the same as the side close to the electromagnetic plate (73); It also includes a plurality of gas compression components (11) fixedly connected to the inner wall of the glue cylinder (1), a push plate (12) matching the gas compression components (11) fixedly connected to the screw (6), and a connecting component (13) in communication with the gas compression components (11) fixedly connected to the outer wall of the glue cylinder (1). The gas compressor (11) is elastic and is arranged at an angle on a side close to the rotation direction of the screw (6). The bottom end of the screw (6) is fixedly connected to a stirring disc (14).

2. The glue coating device for processing a liquid crystal display substrate according to claim 1, characterized in that: The cleaning mechanism comprises a bracket (15) fixedly connected to the outer wall of the glue cylinder (1), a sliding variable resistor (16) and a sealing cylinder (19) fixedly connected to the bracket (15), a cleaning member (17) fixedly connected to the bottom end of the sliding variable resistor (16), a second spring (18) fixedly connected between the cleaning member (17) and the bracket (15), a first piston (20) slidably connected inside the sealing cylinder (19), a third spring (21) fixedly connected between the first piston (20) and the sealing cylinder (19), and a blowing member (22) fixedly connected to a side of the first piston (20) away from the third spring (21). A connecting pipe (23) is connected between the sliding variable resistance element (16) and the sealing cylinder (19); one end of the connecting pipe (24) is connected to the blowing element (22), and the other end is connected to the connecting element (13); the sliding variable resistance element (16) and the regulating cylinder (3) are electrically connected; when the sliding variable resistance element (16) extends, the regulating cylinder (3) extends outwards; when the sliding variable resistance element (16) contracts, the regulating cylinder (3) contracts inwards; and the bottom end of the blowing element (22) is inclined toward the cleaning element (17).

3. The glue coating device for processing a liquid crystal display substrate according to claim 1, characterized in that: The linkage mechanism comprises a mounting cavity (25) provided at the bottom end of the screw rod (6), a movable shaft (26) being slidably connected inside the mounting cavity (25), a driving bevel gear (27) being fixedly connected to one end of the movable shaft (26) away from the mounting cavity (25), a fourth spring (28) being fixedly connected between the movable shaft (26) and the mounting cavity (25), and a slip ring (29) being provided on a side of the screw rod (6) close to the mounting cavity (25). The movable shaft (26) and the mounting cavity (25) are connected in a sealed spline manner, and the slip ring (29) and the first hydraulic rod (74) are connected via a pipeline.

4. The glue coating device for processing a liquid crystal display substrate according to claim 3, characterized in that: The sealing mechanism (30) comprises a guide rail (301) fixedly connected between the glue cylinder (1) and the fixed frame (2); a tooth plate (302) is slidably connected inside the guide rail (301); a driving gear (303) is rotatably connected to a side of the glue cylinder (1) close to the tooth plate (302); an axial end of the driving gear (303) extends into the interior of the glue cylinder (1) and an end thereof is fixedly connected to a driven bevel gear (304) meshing with the driving bevel gear (27); a connecting rod (305) is fixedly connected to the tooth plate (302); and a sealing plate (306) is fixedly connected to one end of the connecting rod (305) away from the tooth plate (302). The guide rail (301) is provided with a hole matching the connecting rod (305), and the driving gear (303) is meshed with the toothed plate (302).

5. The glue coating device for processing a liquid crystal display substrate according to claim 4, characterized in that: It also comprises a mounting plate (307) fixedly connected to a side of the guide rail (301) close to the connecting rod (305), a fifth spring (308) fixedly connected between the mounting plate (307) and the connecting rod (305), a detection cylinder (309) fixedly connected to a side of the mounting plate (307) close to the connecting rod (305), a second piston (310) slidably connected inside the detection cylinder (309), a detection rod (311) fixedly connected to a side of the second piston (310) away from the mounting plate (307), and a sixth spring (312) fixedly connected between the second piston (310) and the detection cylinder (309). The detection rod (311) and the detection cylinder (309) are sealed and slidably connected, and a side of the detection cylinder (309) close to the second piston (310) and the detection rod (311) is connected to the slip ring (29) via a pipeline.

6. The glue coating device for processing a liquid crystal display substrate according to claim 5, characterized in that: It also includes a second hydraulic rod (313) fixedly connected to a side of the guide rail (301) close to the driving gear (303); an output end of the second hydraulic rod (313) is fixedly connected to a locking block (314) matching the toothed plate (302); the second hydraulic rod (313) is connected to a side of the detection cylinder (309) close to the second piston (310) and the sixth spring (312) via a pipeline; and the second hydraulic rod (313) is connected to the first hydraulic rod (74) via a pipeline.

7. The glue coating device for processing a liquid crystal display substrate according to claim 4, characterized in that: The bottom end of the glue barrel (1) is connected to a glue coating head (5), and a one-way valve is provided at one end of the glue coating head (5) close to the glue barrel (1). The bottom end of the glue coating head (5) matches the sealing plate (306).

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