Liquid crystal injection device for liquid crystal display screen production

Abstract

The invention discloses a liquid crystal injection device for liquid crystal display screen production, and particularly relates to the technical field of air compressors, according to the liquid crystal injection device for liquid crystal display screen production, charging is carried out on different sides, when one injection assembly works, a charging assembly carries out charging on the other injection assembly at the same time and operates uninterruptedly, and during liquid crystal injection, a lower base plate is installed on a sliding plate firstly; the four attaching plates are close to one another and abut against and make contact with the four edges of the base plate, after an air bag in an inflatable cushion is inflated, the inflatable cushion enters a strip-shaped groove, then a connecting plug slides in a containing cavity and abuts against and pushes the inflatable cushion to make close contact with the edge of the base plate, and leakage caused by liquid crystal injection is avoided; the connecting plug slides and pushes the soaking piece to make contact with the middle of the upper end face of the base plate, the other base plate is repeatedly installed, namely the soaking piece is installed between the two base plates, liquid crystal liquid is injected from the middles of the four edges of the base plates at the same time, the problem that liquid crystal is injected unevenly from one position is avoided, and the dispersion efficiency of liquid crystal injection is improved.

Description

Technical Field

[0001] The invention relates to the technical field of air compressors, in particular to a liquid crystal injection device for producing liquid crystal display screens. Background Art

[0002] The production process of LCD screens involves liquid crystal injection (liquid crystal perfusion), which is one of the key steps. The main purpose of liquid crystal injection is to accurately inject liquid crystal materials between the two glass substrates of the display screen to form a liquid crystal layer to control the display effect of the screen. This layer of liquid crystal material is the core component to realize image display. Its arrangement is affected by the electric field, thereby adjusting the light transmission and forming an image. Liquid crystal injection is usually carried out in a sealed environment to prevent the liquid crystal from contacting with the outside air or dust. The liquid crystal material is usually injected in the form of capsules or tiny droplets, and the liquid crystal is injected between the substrates using pressure difference or vacuum technology.

[0003] After searching, the utility model patent with publication number CN220232195U discloses a liquid crystal injection device for the production of liquid crystal display screens, which solves the traditional method of directly dripping liquid crystal onto a substrate and waiting for the liquid crystal to level itself on the substrate, resulting in low injection efficiency and ensuring that the liquid crystal flows evenly on the surface of the substrate.

[0004] In the above scheme, the liquid crystal is dripped onto the substrate and then coated. However, when the dripping method is used, the substrate with the liquid crystal needs to be precisely aligned and bonded with the CF substrate. Once the position is offset, it will cause quality problems in the entire display screen and affect the product production quality. Summary of the invention

[0005] The object of the present invention is to provide a liquid crystal injection device for producing a liquid crystal display screen to solve the problems mentioned in the above background technology.

[0006] The technical problems mainly solved by the present invention are:

[0007] The existing solution adopts a dripping method, and the substrate with liquid crystal needs to be precisely aligned and bonded with the CF substrate. Once the position is offset, it will cause quality problems for the entire display screen.

[0008] The present invention can be implemented by the following technical solutions:

[0009] A liquid crystal injection device for producing a liquid crystal display screen comprises a base, an injection cavity is provided in the middle of the upper surface of the base, a slide table is provided inside the injection cavity, a slide plate is slidably installed outside the slide plate, two groups of loading components for sequentially loading substrates onto the slide plate are provided on the edge of the upper surface of the base, and two groups of injection components are provided on the upper surface of the slide plate;

[0010] The injection assembly includes four laminating plates slidably connected to the slide plate, two adjacent laminating plates are arranged vertically, and the four laminating plates are approached or moved away at the same time, the inner wall surface of the laminating plate is provided with a receiving cavity, the inner wall surface of the receiving cavity is provided with a laminating pad in sealing contact with the substrate, the inner cavity of the laminating pad is provided with a strip groove, and the two ends of the inner wall surface of the strip groove are embedded with an inflatable pad pushed by an airbag, the interior of the receiving cavity is slidably provided with a plug connector for injecting liquid crystal, the liquid outlet of the plug connector is installed with a soaking sheet in contact with the edge of the substrate, and the inner cavity top of the receiving cavity is slidably provided with a coating and curing assembly sealed with the edges of two substrates;

[0011] The coating and curing assembly comprises a transverse guide rail arranged on the top surface of the inner cavity of the accommodating cavity, a slide rod is slidably arranged outside the transverse guide rail, a longitudinal guide rail is slidably arranged on one side of the bottom surface of the slide rod, a fixed seat with the same height as the cavity groove is slidably arranged outside the longitudinal guide rail, and a coating roller and a heating roller are sequentially installed on one side of the fixed seat;

[0012] When the coating cures, the wetted sheet follows the plug connector out of the interior of the strip groove.

[0013] A further technical improvement of the present invention is that a slot for inserting a plug connector is provided on the end face of the inflatable pad, and a spring connected to the inflatable pad is provided on the inner wall surface of the strip groove, a support plate is provided on one side of the bonding pad, a cavity groove communicating with the strip groove is provided in the middle of the support plate, and the cavity groove is used for the sliding passage of the coating roller and the heating roller.

[0014] A further technical improvement of the present invention is that an upper gasket inclined downward is provided on the upper portion of the outer wall surface of the fitting pad, and a lower gasket is provided on the lower portion of the outer wall surface of the fitting pad, and the opening directions of the upper gasket and the lower gasket are opposite.

[0015] A further technical improvement of the present invention is that a limit rod slidably arranged with the plug connector is installed inside the accommodating cavity, and an actuator cylinder for pushing the plug connector to move is provided inside the accommodating cavity, and a telescopic tube 1 is installed at the liquid inlet end of the plug connector.

[0016] A further technical improvement of the present invention is that the outer wall surface of the coating roller is provided with a coating layer in contact with a plurality of spray holes, and the coating roller has the same diameter as the heating roller, the shaft of the coating roller is rotatably connected to a material delivery pipeline, one end of the material delivery pipeline is connected to telescopic tube 2, and telescopic tube 2 and telescopic tube 1 are jointly connected to a diversion integrated pipe.

[0017] A further technical improvement of the present invention is that an adsorption plate is embedded in the upper surface of the slide plate, and a transmission screw connected to the middle shaft end of the bevel gear is provided on the bottom surface of the slide plate, a transmission plate is sleeved on the external thread of the transmission screw, and the top surface of the transmission plate is fixed to the bonding plate.

[0018] A further technical improvement of the present invention is that the loading assembly comprises a freely movable mechanical arm, a rotating plate is provided on the bottom surface of the end of the mechanical arm, and an electric clamp for clamping the substrate is installed on the bottom surface of the rotating plate.

[0019] A further technical improvement of the present invention is that two conveying platforms for conveying to the corresponding injection components are symmetrically arranged on the edge of the base, a baffle is installed for lifting at the gap between the rollers in the conveying platform, a clamping entrance for electric clamps to enter is embedded on the upper surface of the base near the edge of the conveying platform, and an output platform for conveying the product is arranged on one side of the base.

[0020] A further technical improvement of the present invention is that an injection box and a storage box are provided on the top of the injection chamber, the liquid outlet ends of the injection box and the storage box are integrated in the same retractable shunt pipe, a clamp seat clamped together with the shunt integrated pipe is provided on the outer side of the end of the shunt pipe, and a lifting plate driven by an electric push rod is provided on the upper part of the clamp seat.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] 1. By loading materials on different sides, when one group of injection components is working, the loading component simultaneously loads materials to the other group of injection components, and the operation is uninterrupted. Secondly, when injecting liquid crystal, the lower substrate is first installed on the slide plate, and then the four bonding plates are close to each other and abut against the four sides of the substrate. After the airbag in the inflatable cushion is inflated, the inflatable cushion enters the strip groove, and then the plug-in connector slides in the accommodating cavity and pushes the inflatable cushion to be in close contact with the edge of the substrate to avoid leakage during liquid crystal injection. The plug-in connector slides and pushes the soaking sheet to contact the middle of the upper end surface of the substrate, and repeats the installation of another substrate, that is, the soaking sheet is installed between the two substrates, and the liquid crystal liquid is injected from the middle of the four edges of the substrate at the same time, avoiding the problem of uneven injection of liquid crystal from one position, and improving the dispersion efficiency of liquid crystal injection;

[0023] 2. After the liquid crystal is injected, the plug connector is reset to the initial position, the slide bar slides in the horizontal guide rail, and the coating roller and the heating roller are pushed into the strip groove. The fixed seat drives the coating roller and the heating roller to slide along the direction of the longitudinal guide rail, and a layer of epoxy resin sealing layer is evenly coated on the edge of the substrate connection. The heating roller passes through the coating area, and the curing process is accelerated by heating to promote the cross-linking of the sealant molecules, thereby enhancing the strength and durability of the sealant. Since epoxy resin is a high-strength sealing material, the sealing effect and strength after curing can withstand a certain pressure and external force, which is convenient for clamping and transferring;

[0024] 3. When clamping the substrate, the conveyor tables on different sides successively clamp the substrate and transfer it to the loading assembly. During the clamping process, the clamping angle of the electric clamp is adjusted by the rotating plate to better clamp the substrate and enter between two adjacent rollers through the clamping entrance for easy clamping;

[0025] 4. When installing the lower substrate, the lower gasket at the bottom of the bonding board contacts the lower substrate, while the upper gasket contacts the upper substrate to prevent the injected liquid crystal from leaking. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to facilitate understanding by those skilled in the art, the present invention is further described below with reference to the accompanying drawings.

[0027] Figure 1 It is a schematic diagram of the external structure of the present invention;

[0028] Figure 2 It is a schematic diagram of the installation structure connection of the electric gripper of the present invention;

[0029] Figure 3 It is a schematic diagram of the installation structure connection of the laminated board of the present invention;

[0030] Figure 4 It is a schematic diagram of the installation structure of the plug connector of the present invention;

[0031] Figure 5 For the present invention Figure 4 A partial enlarged view of the middle A;

[0032] Figure 6 It is a schematic diagram of the installation structure of the slide bar of the present invention;

[0033] Figure 7 For the present invention Figure 6 A partial enlarged view of point B in the middle;

[0034] Figure 8 It is a schematic diagram of the installation structure of the clamping base of the present invention.

[0035] In the figure: 1. base; 2. slide; 3. injection cavity; 4. conveying table; 5. baffle; 6. slide plate; 7. bonding plate; 8. mechanical arm; 9. electric clamp; 10. output table; 11. rotating plate; 12. shunt integrated pipe; 13. adsorption plate; 14. transmission screw; 15. transmission plate; 16. accommodating cavity; 17. actuator cylinder; 18. plug connector; 19. limit rod; 20. longitudinal guide rail; 21. transverse guide rail; 23. bonding pad; 24. support plate; 25. soaking plate; 26. telescopic tube 1; 27. inflatable pad; 28. spring; 29. ​​upper gasket; 30. lower gasket; 31. slot; 32. slide rod; 33. cavity groove; 34. fixed seat; 35. coating roller; 36. heating roller; 37. lifting plate; 38. clamping seat. DETAILED DESCRIPTION

[0036] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined invention purpose, the specific implementation methods, structures, features and effects of the present invention are described in detail below in conjunction with the accompanying drawings and preferred embodiments.

[0037] See also Figure 1-Figure 8As shown, the present invention provides a liquid crystal injection device for producing liquid crystal display screens, including a base 1, an injection cavity 3 is provided in the middle of the upper surface of the base 1, a slide 2 is provided inside the injection cavity 3, a slide 6 is slidably installed outside the slide 2, two groups of loading components for sequentially loading substrates onto the slide 6 are provided on the edge of the upper surface of the base 1, two groups of injection components are provided on the upper surface of the slide 6, one group of loading components is used for loading, and the loaded substrate enters the injection cavity 3 by the injection component for injection of liquid crystal to achieve uninterrupted operation, the injection component includes four bonding plates 7 slidably connected to the slide 6, two adjacent bonding plates 7 are vertically arranged, the four bonding plates 7 are simultaneously approached or moved away, the inner wall surface of the bonding plate 7 is provided with a accommodating cavity 16, and the inner wall surface of the accommodating cavity 16 is provided with a The laminating pad 23 is in sealed contact with the substrates, the inner cavity of the laminating pad 23 is provided with a strip groove, and the inner wall surfaces of the strip groove are embedded with inflatable pads 27 pushed by airbags at both ends, the interior of the accommodating cavity 16 is slidably provided with a plug connector 18 for injecting liquid crystal, and the liquid outlet of the plug connector 18 is installed with a soaking sheet 25 in contact with the edge of the substrate, and the top of the inner cavity of the accommodating cavity 16 is slidably provided with a coating and curing component that is sealed with the edges of the two substrates; the coating and curing component includes a transverse guide rail 21 provided on the top surface of the inner cavity of the accommodating cavity 16, and a sliding rod 32 is slidably provided on the outside of the transverse guide rail 21, and a longitudinal guide rail 20 is provided on one side of the bottom surface of the sliding rod 32, and a fixing seat 34 with the same height as the cavity groove 33 is slidably provided on the outside of the longitudinal guide rail 20, and a coating roller 35 and a heating roller 36 are sequentially installed on one side of the fixing seat 34;During coating and curing, the wetting sheet 25 follows the plug connector 18 to leave the interior of the strip groove. During operation, the substrates are sequentially loaded into the injection assembly using the loading assembly. Before loading the substrates, the four bonding plates 7 are in an open state. After one substrate is loaded, the four bonding plates 7 are close to each other and in contact with the four sides of the substrate. After the airbag in the inflatable cushion 27 is inflated, the inflatable cushion 27 enters the strip groove. Then the plug connector 18 slides in the accommodating cavity 16 and pushes the inflatable cushion 27 to make close contact with the edge of the substrate to prevent leakage of the liquid crystal injection, pushing the wetting sheet 25 to contact with the middle of the upper end surface of the substrate, and repeating the installation of another substrate, that is, the wetting sheet 25 is installed between the two substrates, that is, the liquid crystal liquid is injected from the middle of the four edges of the substrate at the same time to prevent the liquid crystal from leaking from one position. The problem of uneven injection is solved to improve the dispersion efficiency of liquid crystal injection. In addition, after the liquid crystal is injected, the airbag in the inflatable cushion 27 is deflated and automatically reset to the initial position, so that the strip groove is opened. Then the slide bar 32 slides in the transverse guide rail 21, pushing the coating roller 35 and the heating roller 36 into the strip groove. The fixing seat 34 drives the coating roller 35 and the heating roller 36 to slide along the direction of the longitudinal guide rail 20, and evenly coats a layer of epoxy resin sealing layer on the edge of the substrate connection, and passes the heating roller 36 through the coating area, and accelerates its curing process by heating, promotes the cross-linking of the sealant molecules, and thus enhances the strength and durability of the sealant. Since epoxy resin is a high-strength sealing material, the sealing effect and strength after curing can withstand a certain pressure and external force, which is convenient for clamping and transferring. ;

[0038] See also Figure 4 and Figure 5 As shown, the end face of the inflatable cushion 27 is provided with a slot 31 for inserting the plug connector 18. When the inflatable cushion 27 is inflated with gas to expand outward, the slot 31 is formed at this time and is located in the middle of the strip groove. The inner wall surface of the strip groove is provided with a spring 28 connected to the inflatable cushion 27, that is, after the airbag in the inflatable cushion 27 is inflated, the inflatable cushion 27 is in an open state and enters into the strip groove, and the plug connector 18 contacts the inflatable cushion 27. A support plate 24 is provided on one side of the fitting pad 23, and a cavity 33 communicating with the strip groove is provided in the middle of the support plate 24.

[0039] See also Figure 5 As shown, a downwardly inclined upper gasket 29 is provided on the upper portion of the outer wall surface of the bonding pad 23, and a lower gasket 30 is provided on the lower portion of the outer wall surface of the bonding pad 23. The opening directions of the upper gasket 29 and the lower gasket 30 are opposite. When installing the lower substrate, the lower gasket 30 at the bottom of the bonding plate 7 contacts the lower substrate, and the upper gasket 29 contacts the upper substrate to prevent the injected liquid crystal from leaking.

[0040] See also Figure 4As shown, a limit rod 19 is installed inside the accommodating cavity 16 and is slidably arranged with the plug connector 18. An actuating cylinder 17 for pushing the plug connector 18 to move is provided inside the accommodating cavity 16. A telescopic tube 26 is installed at the liquid inlet end of the plug connector 18. The movement of the plug connector 18 is controlled by the actuating cylinder 17. At this time, the telescopic tube 26 is extended or shortened, thereby realizing the injection of liquid crystal into the gap between the two substrates.

[0041] See also Figure 6 and Figure 7 As shown, the outer wall surface of the coating roller 35 is provided with a coating layer in contact with a plurality of nozzles, and the coating roller 35 has the same diameter as the heating roller 36. The shaft of the coating roller 35 is rotatably connected to a feed pipeline, one end of which is connected to a telescopic tube 2, and the telescopic tube 2 and the telescopic tube 1 26 are commonly connected to a diversion integrated pipe 12. Since the feed pipeline is connected to the telescopic tube 2, the coating roller 35 and the heating roller 36 are adaptively telescopic when sliding along the longitudinal guide rail 20, and the transportation of the epoxy resin liquid is not affected. A layer of epoxy resin sealing layer is first applied by the coating roller 35, and then the coating area is heated by the heating roller 36 to accelerate its curing time.

[0042] See also Figure 3 As shown, an adsorption plate 13 is embedded in the upper surface of the slide plate 6, and a transmission screw 14 connected to the middle shaft end of the bevel gear is provided on the bottom surface of the slide plate 6. The external thread of the transmission screw 14 is sleeved with a transmission plate 15. The top surface of the transmission plate 15 is fixed to the bonding plate 7. Initially, the four bonding plates 7 are in an open state, which is convenient for positioning and conveying the substrate to the slide plate 6. Then, the adsorption plate 13 adsorbs and fixes the lower substrate. At this time, the meshing transmission of the bevel gears causes the four transmission screws 14 to rotate at the same time, that is, the four bonding plates 7 are close to each other and in contact with the substrate.

[0043] See also Figure 1 and Figure 2 As shown, the loading assembly includes a freely movable mechanical arm 8, a rotating plate 11 is provided on the bottom surface of the end of the mechanical arm 8, and an electric clamp 9 for clamping the substrate is installed on the bottom surface of the rotating plate 11; two conveying tables 4 for conveying to the corresponding injection assembly are symmetrically provided on the edge of the base 1, and a baffle 5 is installed at the gap between the rollers in the conveying table 4 for lifting and lowering. A clamping entrance for the electric clamp 9 to enter is embedded on the edge of the upper surface of the base 1 near the conveying table 4, and an output table 10 for conveying the product is provided on one side of the base 1. The substrate is in the corresponding conveying table 4 and is positioned by the baffle 5. The direction and height are changed by the mechanical arm 8, and the substrates are successively clamped from the conveying tables 4 on different sides and transferred to the loading assembly. During the clamping process, the clamping angle of the electric clamp 9 is adjusted by the rotating plate 11 to better clamp the substrate, and enter between two adjacent rollers through the clamping entrance to facilitate clamping. After clamping, the substrate is transferred to the adjacent injection assembly.

[0044] See also Figure 1 and Figure 8 As shown, an injection box and a storage box are provided on the top of the injection chamber 3, and the liquid outlet ends of the injection box and the storage box are integrated in the same retractable shunt pipe. A clamp seat 38 clamped together with the shunt integrated pipe 12 is provided on the outer side of the end of the shunt pipe, and a lifting plate 37 pushed by an electric push rod is provided on the upper part of the clamp seat 38. After the substrate enters the injection chamber 3, it reaches a fixed position. At this time, the lifting plate 37 descends in height, and the shunt integrated pipe 12 is connected to the shunt pipe by the clamp seat 38, and the pipes are integrated together for easy docking and installation, thereby realizing liquid crystal injection and the circulation of sealant.

[0045] When the present invention is used, by loading materials on different sides, when one group of injection components is working, the loading components simultaneously load materials to the other group of injection components, and the operation is uninterrupted. Secondly, when injecting liquid crystal, the lower substrate is first installed on the slide plate 6, and then the four bonding plates 7 are close to each other and abut against the four sides of the substrate. After the airbag in the inflatable cushion 27 is inflated, the inflatable cushion 27 enters the strip groove, and then the plug connector 18 slides in the accommodating cavity 16 and pushes the inflatable cushion 27 to closely contact the edge of the substrate to avoid leakage during liquid crystal injection. The plug connector 18 slides and pushes the soaking sheet 25 to contact the middle of the upper end surface of the substrate, and another substrate is repeatedly installed, that is, the soaking sheet 25 is installed between the two substrates, and the liquid crystal liquid is injected from the middle of the four edges of the substrate at the same time, avoiding the problem of uneven injection of liquid crystal from one position, and improving the dispersion efficiency of liquid crystal injection;

[0046] After injection, the plug connector 18 is reset to the initial position, and the slide bar 32 slides in the transverse guide rail 21, pushing the coating roller 35 and the heating roller 36 into the strip groove. The fixing seat 34 drives the coating roller 35 and the heating roller 36 to slide along the direction of the longitudinal guide rail 20, and evenly coats a layer of epoxy resin sealing layer on the edge of the substrate connection. The heating roller 36 passes through the coating area, and the curing process is accelerated by heating, which promotes the cross-linking of the sealant molecules, thereby enhancing the strength and durability of the sealant. Since the epoxy resin is a high-strength sealing material, the sealing effect and strength after curing can withstand a certain pressure and external force, which is convenient for clamping and transferring;

[0047] When clamping the substrate, the conveying tables 4 on different sides successively clamp the substrate and transfer it to the loading assembly. During the clamping process, the clamping angle of the electric clamp 9 is adjusted by the rotating plate 11 to better clamp the substrate and enter between two adjacent rollers through the clamping entrance for easy clamping.

[0048] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention without departing from the content of the technical solution of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A liquid crystal injection device for producing a liquid crystal display screen, comprising a base (1), wherein an injection cavity (3) is provided in the middle of the upper surface of the base (1), characterized in that: The inside of the injection cavity (3) is provided with a slide table (2) penetrating therethrough, the outside of the slide table (2) is slidably provided with a slide plate (6), the upper surface edge of the base (1) is provided with two groups of loading components for sequentially loading substrates onto the slide plate (6), and the upper surface of the slide plate (6) is provided with two groups of injection components; The injection assembly comprises four laminating plates (7) slidably connected to the slide plate (6), two adjacent laminating plates (7) are arranged vertically, and the four laminating plates (7) are simultaneously approached or moved away from each other, the inner wall surface of the laminating plate (7) is provided with a receiving cavity (16), the inner wall surface of the receiving cavity (16) is provided with a laminating pad (23) in sealing contact with the substrate, the inner cavity of the laminating pad (23) is provided with a strip groove, and both ends of the inner wall surface of the strip groove are embedded with an inflatable pad (27) pushed by an air bag, the interior of the receiving cavity (16) is slidably provided with a plug connector (18) for injecting liquid crystal, the liquid outlet of the plug connector (18) is provided with a soaking sheet (25) in contact with the edge of the substrate, and the inner cavity top of the receiving cavity (16) is slidably provided with a coating and curing assembly in sealing contact with the edges of the two substrates; The coating and curing assembly comprises a transverse guide rail (21) arranged on the top surface of the inner cavity of the accommodating cavity (16); a slide bar (32) is slidably provided on the outside of the transverse guide rail (21); a longitudinal guide rail (20) is slidably provided on one side of the bottom surface of the slide bar (32); a fixed seat (34) having the same height as the cavity groove (33) is slidably provided on the outside of the longitudinal guide rail (20); a coating roller (35) and a heating roller (36) are sequentially installed on one side of the fixed seat (34); When the coating is cured, the wetted sheet (25) follows the plug connector (18) out of the interior of the strip groove.

2. A liquid crystal injection device for producing a liquid crystal display screen according to claim 1, characterized in that: The end surface of the inflatable pad (27) is provided with a slot (31) for inserting the plug connector (18), and the inner wall surface of the strip groove is provided with a spring (28) connected to the inflatable pad (27). A support plate (24) is provided on one side of the bonding pad (23), and a cavity (33) communicating with the strip groove is provided in the middle of the support plate (24), and the cavity (33) is used for the sliding passage of the coating roller (35) and the heating roller (36).

3. The liquid crystal injection device for producing a liquid crystal display according to claim 1, characterized in that: An upper gasket (29) inclined downward is provided on the upper portion of the outer wall surface of the fitting pad (23), and a lower gasket (30) is provided on the lower portion of the outer wall surface of the fitting pad (23), and the opening directions of the upper gasket (29) and the lower gasket (30) are opposite.

4. The liquid crystal injection device for producing a liquid crystal display panel according to claim 1, characterized in that: A limiting rod (19) is installed inside the accommodating chamber (16) and is slidably arranged with the plug connector (18). An actuating cylinder (17) is also provided inside the accommodating chamber (16) for pushing the plug connector (18) to move. A telescopic tube (26) is installed at the liquid inlet end of the plug connector (18).

5. The liquid crystal injection device for producing a liquid crystal display panel according to claim 4, characterized in that: The outer wall surface of the coating roller (35) is provided with a coating layer in contact with a plurality of spray holes, and the coating roller (35) and the heating roller (36) have the same diameter. The shaft of the coating roller (35) is rotatably connected to a material delivery pipeline, one end of which is connected to telescopic tube 2, and telescopic tube 2 and telescopic tube 1 (26) are jointly connected to a flow distribution integrated pipe (12).

6. The liquid crystal injection device for producing a liquid crystal display panel according to claim 1, characterized in that: An adsorption plate (13) is embedded in the upper surface of the slide plate (6), and a transmission screw (14) connected to the middle shaft end of the bevel gear is provided on the bottom surface of the slide plate (6). The external thread of the transmission screw (14) is sleeved with a transmission plate (15), and the top surface of the transmission plate (15) is fixed to the bonding plate (7).

7. The liquid crystal injection device for producing a liquid crystal display panel according to claim 1, characterized in that: The loading assembly comprises a freely movable mechanical arm (8), the bottom surface of the end of the mechanical arm (8) is provided with a rotating plate (11), and the bottom surface of the rotating plate (11) is installed with an electric clamp (9) for clamping the substrate.

8. The liquid crystal injection device for producing a liquid crystal display panel according to claim 7, characterized in that: Two conveying platforms (4) for conveying to corresponding injection assemblies are symmetrically arranged at the edge of the base (1); a baffle (5) is installed at the gap between the rollers in the conveying platform (4) for lifting; a clamping entrance for electric clamps (9) to enter is embedded in the upper surface of the base (1) near the edge of the conveying platform (4); and an output platform (10) for conveying products is arranged on one side of the base (1).

9. The liquid crystal injection device for producing a liquid crystal display panel according to claim 5, characterized in that: An injection box and a storage box are provided on the top of the injection chamber (3), and the liquid outlet ends of the injection box and the storage box are integrated in the same retractable shunt pipe. A clamp seat (38) clamped together with the shunt integrated pipe (12) is provided on the outer side of the end of the shunt pipe, and a lifting plate (37) driven by an electric push rod is provided on the upper part of the clamp seat (38).

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