Liquid crystal injection device for liquid crystal display screen production

Abstract

The utility model provides a liquid crystal injection device for liquid crystal display screen production, and belongs to the technical field of liquid crystal display screen production. The liquid crystal injection device for liquid crystal display screen production comprises an injection assembly and a flattening assembly, the injection assembly comprises a supporting frame, a stirring box, a first electric sliding rail and an injection piece, and the flattening assembly comprises a second electric sliding rail, a moving plate, an electric telescopic rod, a spreading plate, a driving piece and a scraping sleeve. A supporting frame, a stirring box, a first electric sliding rail and an injection part are arranged, the supporting frame drives the injection part to move, a liquid crystal solution in the stirring box is injected to a base plate, a second electric sliding rail, a movable plate, an electric telescopic rod, a spreading plate, a driving part and a scraping sleeve are arranged, and the driving part drives the scraping sleeve to move along the spreading plate; the liquid crystal solution spreading device is simple in structure and convenient to use, can effectively scrape materials adhered after spreading every time, ensures next use of the spreading plate, and can comprehensively spread a liquid crystal solution on a base plate in a mode of directly driving the spreading plate to move front and back for spreading through an electric telescopic rod, so that the efficiency is improved.

Description

Technical Field

[0001] The present application relates to the field of liquid crystal display screen production, and in particular, to a liquid crystal injection device for liquid crystal display screen production. Background Art

[0002] Liquid crystal display is a type of display used in digital clocks and many portable computers. LCD displays use two polarized materials with a liquid crystal solution between them. When an electric current passes through the liquid, the crystals are rearranged so that light cannot pass through them. Therefore, each crystal acts like a shutter, which can both allow light to pass through and block light. The development of liquid crystal display technology is in line with the current trend of information products. Whether it is right-angle display, low power consumption, small size, or zero radiation, it can allow users to enjoy the best visual environment.

[0003] Announcement No. CN 220232195 U discloses a liquid crystal injection device for the production of liquid crystal display screens, including multiple groups of injection nozzles arranged between two groups of supporting uprights. A flattening device is provided between the two groups of supporting uprights to make the liquid crystal more flat and uniform after injection, thereby solving the problem that the traditional method of directly dripping liquid crystal onto a substrate and waiting for the liquid crystal to level itself on the substrate has low injection efficiency and cannot ensure that the liquid crystal flows evenly on the surface of the substrate. The liquid crystal is uneven on the surface of the substrate, resulting in the inability to perform the next step of substrate bonding, which affects the production of liquid crystal display screens.

[0004] However, there are some defects in the above scheme: in the above scheme, a motor is set to drive the spreading plate to rotate to spread the liquid crystal on the surface of the substrate. However, the liquid crystal solution is easily adhered to the spreading plate due to the temperature drop after being dripped onto the substrate and then spread by the spreading rotation. The thicker liquid crystal solution adhered to the spreading plate affects the next use, and for longer substrates, the rotating spreading plate will miss corners when spreading. If the spreading is repeated many times, it will easily affect the efficiency. Utility Model Content

[0005] In order to make up for the above shortcomings, the present application provides a liquid crystal injection device for producing liquid crystal display screens, aiming to improve the problems raised in the above background technology.

[0006] An embodiment of the present application provides a liquid crystal injection device for producing a liquid crystal display screen, including an injection component and a flattening component.

[0007] The injection assembly includes a support frame, a mixing box, a first electric slide rail and an injection piece. The mixing box is arranged on the top of the support frame, the first electric slide rail is arranged in the mixing box, and the injection piece is arranged on one side of the first electric slide rail and connected to the mixing box.

[0008] The flattening assembly includes a second electric slide rail, a movable plate, an electric telescopic rod, a spreading plate, a driving member and a scraper sleeve. The second electric slide rail is arranged in the mixing box, the movable plate is fixedly connected to the second electric slide rail, the electric telescopic rod is fixedly connected to the movable plate through the fixing, the spreading plate is fixedly connected to the bottom end of the electric telescopic rod, the driving member is arranged on one side of the movable plate, and the scraper sleeve is slidably sleeved on the surface of the spreading plate and connected to the driving member.

[0009] In a specific embodiment, the flattening assembly further comprises a heating rod, and the heating rod is disposed in the flattening plate.

[0010] In the above implementation process, by providing a heating rod, the spreading plate can be heated, so that the liquid crystal solution in contact will not become viscous easily, is easy to spread, and can also greatly reduce adhesion to the spreading plate.

[0011] In a specific embodiment, the driving member includes a bidirectional screw and a driving motor. The bidirectional screw is rotatably arranged on one side of the spreading plate, and the driving motor is installed on one side of the spreading plate and is transmission-connected to the bidirectional screw.

[0012] In the above implementation process, a bidirectional screw and a drive motor are provided, the drive motor is started, the drive motor drives the bidirectional screw to rotate, and the bidirectional screw drives the scraper sleeve to slide back and forth along the spreading plate to scrape off the adhered liquid crystal liquid.

[0013] In a specific embodiment, a guide rod is provided at the end of the spreading plate, and the guide rod slides through the movable plate.

[0014] In the above implementation process, a guide rod is provided to guide the spreading plate to move smoothly up and down.

[0015] In a specific embodiment, the stirring box includes a box body, a stirring paddle and a stirring motor. The stirring paddle is rotatably arranged in the box body, and the stirring motor is installed on the top of the box body and is transmission-connected to the stirring paddle.

[0016] In the above implementation process, a box body, a stirring paddle and a stirring motor are provided, and the stirring motor is started. The stirring motor drives the stirring paddle to rotate, and the stirring paddle stirs the liquid crystal solution inside to keep it in a liquid state.

[0017] In a specific embodiment, the injection component includes a material guide pipe, a telescopic tube and an injection nozzle, the end of the material guide pipe is fixedly connected to the first electric slide rail, the telescopic tube is arranged between the box body and the material guide pipe, and the injection nozzle is connected to the bottom of the material guide pipe.

[0018] In the above implementation process, by providing a material guide tube, a telescopic tube and an injection nozzle, the telescopic tube guides the liquid crystal solution in the stirring box into the material guide tube, and then the liquid crystal solution is sprayed out by a plurality of injection nozzles and injected onto the substrate.

[0019] In a specific embodiment, a feeding pipe is provided in communication with the top of the box body, and the bottom of the box body is inclined toward the telescopic tube.

[0020] In the above implementation process, a feeding tube is provided to replenish the liquid crystal solution inside.

[0021] In a specific embodiment, a heating plate is provided on the outer wall of the stirring box.

[0022] In the above implementation process, a heating plate is provided to heat the liquid crystal solution in the stirring box so as to keep the liquid solution state.

[0023] Beneficial effects: The present application provides a liquid crystal injection device for the production of liquid crystal display screens. By setting a support frame, a stirring box, a first electric slide rail and an injection piece, the support frame drives the injection piece to move, and the liquid crystal solution in the stirring box is injected onto the substrate. By setting a second electric slide rail, a movable plate, an electric telescopic rod, a spreading plate, a driving piece and a scraping sleeve, the driving piece drives the scraping sleeve to move along the spreading plate, which can effectively scrape off the material adhered after each use of spreading, ensuring that the spreading plate can be used next time. At the same time, the electric telescopic rod directly drives the spreading plate to move back and forth for spreading, which can comprehensively spread the liquid crystal solution on the substrate and improve efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the implementation methods of the present application, the drawings required for use in the implementation methods will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0025] Figure 1 It is a schematic diagram of the structure of a liquid crystal injection device for producing a liquid crystal display screen provided in an embodiment of the present application;

[0026] Figure 2 A schematic diagram of the injection assembly structure provided in an embodiment of the present application;

[0027] Figure 3 A schematic diagram of the structure of a mixing box provided in an embodiment of the present application;

[0028] Figure 4 A schematic diagram of the flattening assembly structure provided in an embodiment of the present application;

[0029] Figure 5A schematic diagram of the drive structure provided in an embodiment of the present application.

[0030] In the figure: 100-injection assembly; 110-support frame; 120-mixing box; 121-box body; 122-mixing paddle; 123-mixing motor; 130-first electric slide rail; 140-injection member; 141-material guide pipe; 142-telescopic pipe; 143-injection nozzle; 160-heating plate; 200-flattening assembly; 210-second electric slide rail; 220-movable plate; 240-electric telescopic rod; 250-flattening plate; 252-guide rod; 260-driving member; 261-bidirectional screw rod; 262-driving motor; 270-scraping sleeve; 280-heating rod. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments.

[0032] See also Figure 1-Figure 5 The present application provides a liquid crystal injection device for producing a liquid crystal display screen, including an injection component 100 and a flattening component 200.

[0033] See also Figure 1 , 2 and 3, the injection assembly 100 includes a support frame 110, a mixing box 120, a first electric slide rail 130 and an injection piece 140, the mixing box 120 is arranged on the top of the support frame 110, the first electric slide rail 130 is arranged in the mixing box 120, and the injection piece 140 is arranged on one side of the first electric slide rail 130 and connected to the mixing box 120.

[0034] In a specific embodiment, the stirring box 120 includes a box body 121, a stirring paddle 122 and a stirring motor 123. The stirring paddle 122 is rotatably arranged in the box body 121. The stirring motor 123 is installed on the top of the box body 121 and is transmission-connected to the stirring paddle 122. By setting the box body 121, the stirring paddle 122 and the stirring motor 123, the stirring motor 123 is started, and the stirring motor 123 drives the stirring paddle 122 to rotate, and the stirring paddle 122 stirs the liquid crystal solution inside to keep it in a liquid state.

[0035] Among them, the injection component 140 includes a material guide tube 141, a telescopic tube 142 and an injection nozzle 143. The end of the material guide tube 141 is fixedly connected to the first electric slide rail 130. The telescopic tube 142 is arranged between the box body 121 and the material guide tube 141. The injection nozzle 143 is connected and arranged at the bottom of the material guide tube 141. By arranging the material guide tube 141, the telescopic tube 142 and the injection nozzle 143, the telescopic tube 142 guides the liquid crystal solution in the stirring box 120 into the material guide tube 141, and then it is sprayed out by multiple injection nozzles 143 and injected onto the substrate.

[0036] In this embodiment, a feeding pipe is provided at the top of the box body 121, and the bottom of the box body 121 is inclined toward the telescopic tube 142. The feeding pipe is provided to replenish the liquid crystal solution inside.

[0037] In a specific embodiment, a heating plate 160 is disposed on the outer wall of the stirring box 120. The heating plate 160 is provided to heat the liquid crystal solution in the stirring box 120 to keep it in a solution state.

[0038] See also Figure 1 , 2 , 4 and 5, the flattening assembly 200 includes a second electric slide rail 210, a movable plate 220, an electric telescopic rod 240, a spreading plate 250, a driving member 260 and a scraper sleeve 270, the second electric slide rail 210 is arranged in the mixing box 120, the movable plate 220 is fixedly connected to the second electric slide rail 210, the electric telescopic rod 240 is fixedly connected to the movable plate 220, the spreading plate 250 is fixedly connected to the bottom end of the electric telescopic rod 240, the driving member 260 is arranged on one side of the movable plate 220, and the scraper sleeve 270 is slidably sleeved on the surface of the spreading plate 250 and connected to the driving member 260.

[0039] Among them, the flattening component 200 also includes a heating rod 280, which is arranged in the spreading plate 250. By setting the heating rod 280, the spreading plate 250 can be heated so that the liquid crystal solution in contact will not easily become viscous, is easy to flatten, and will also greatly reduce adhesion to the spreading plate 250.

[0040] Specifically, the driving member 260 includes a bidirectional screw rod 261 and a driving motor 262. The bidirectional screw rod 261 is rotatably arranged on one side of the spreading plate 250. The driving motor 262 is installed on one side of the spreading plate 250 and is transmission-connected to the bidirectional screw rod 261. By setting the bidirectional screw rod 261 and the driving motor 262, the driving motor 262 is started, and the driving motor 262 drives the bidirectional screw rod 261 to rotate. The bidirectional screw rod 261 drives the scraper sleeve 270 to slide back and forth along the spreading plate 250 to scrape off the adhered liquid crystal liquid.

[0041] In this embodiment, a guide rod 252 is provided at the end of the spreading plate 250. The guide rod 252 slides through the movable plate 220. The guide rod 252 is provided to guide the spreading plate 250 to move smoothly up and down.

[0042] It should be noted that the composite board of the liquid crystal display screen is a prior art, and its specific principle and structure are not described in detail again.

[0043] The working principle of the liquid crystal injection device for the production of liquid crystal display screens is as follows: when in use, the heating plate 160 and the stirring motor 123 are started, the stirring motor 123 drives the stirring paddle 122 to rotate, the stirring paddle 122 stirs the liquid crystal solution inside to keep it in a liquid state and avoid agglomeration, the telescopic tube 142 is connected to the lowest point of the box 121 to ensure that the liquid crystal liquid in the box 121 can flow to the telescopic tube 142, the telescopic tube 142 guides the liquid crystal solution in the stirring box 120 into the guide tube 141, and then multiple injection nozzles 143 spray it out and inject it onto the substrate, the first electric slide rail 130 drives it to move back and forth to complete the initial large-area liquid crystal injection into the substrate, and after the injection work is completed, the second electric slide rail 210 is started to control the movement The plate 220 moves forward and backward, and at the same time, the electric telescopic rod 240 is controlled to start to push the spreading plate 250 to move a set distance, so that the spreading plate 250 is in contact with the liquid crystal. As the movable plate 220 moves forward and backward, the liquid crystal liquid is evenly spread. Further, after spreading, the driving motor 262 is started, and the driving motor 262 drives the bidirectional screw rod 261 to rotate. The bidirectional screw rod 261 drives the scraper sleeve 270 to slide back and forth along the spreading plate 250 to scrape off the adhered liquid crystal liquid. At the same time, the heating rod 280 is turned on to heat the spreading plate 250, so that the liquid crystal solution in contact will not easily become viscous and is easy to spread. It will also greatly reduce adhesion to the spreading plate 250, thereby preventing the liquid crystal from adhering to the spreading plate 250 and agglomerating and affecting the next use.

[0044] It should be noted that the specific models and specifications of the stirring motor 123, the first electric slide rail 130, the heating plate 160, the second electric slide rail 210, the electric telescopic rod 240, the drive motor 262 and the heating rod 280 need to be selected and determined according to the actual specifications of the device. The specific selection calculation method adopts the existing technology in this field, so it will not be described in detail.

[0045] The power supply and principle of the stirring motor 123, the first electric slide rail 130, the heating plate 160, the second electric slide rail 210, the electric telescopic rod 240, the driving motor 262 and the heating rod 280 are clear to those skilled in the art and will not be described in detail here.

[0046] It is obvious to those skilled in the art that the present application is not limited to the details of the exemplary embodiments described above, and that the present application can be implemented in other specific forms without departing from the spirit or essential features of the present application. Therefore, the embodiments should be regarded as exemplary and non-limiting in all respects, and the scope of the present application is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present application. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A liquid crystal injection device for producing a liquid crystal display screen, characterized in that: include An injection assembly (100), the injection assembly (100) comprising a support frame (110), a stirring box (120), a first electric slide rail (130) and an injection piece (140), the stirring box (120) being arranged on the top of the support frame (110), the first electric slide rail (130) being arranged in the stirring box (120), and the injection piece (140) being arranged on one side of the first electric slide rail (130) and connected to the stirring box (120); A flattening assembly (200), the flattening assembly (200) comprising a second electric slide rail (210), a movable plate (220), an electric telescopic rod (240), a spreading plate (250), a driving member (260) and a scraper sleeve (270), wherein the second electric slide rail (210) is arranged in the mixing box (120), the movable plate (220) is fixedly connected to the second electric slide rail (210), the electric telescopic rod (240) is fixedly connected to the movable plate (220), the spreading plate (250) is fixedly connected to the bottom end of the electric telescopic rod (240), the driving member (260) is arranged on one side of the movable plate (220), and the scraper sleeve (270) is slidably sleeved on the surface of the spreading plate (250) and connected to the driving member (260).

2. A liquid crystal injection device for producing a liquid crystal display screen according to claim 1, characterized in that: The flattening assembly (200) further comprises a heating rod (280), wherein the heating rod (280) is disposed inside the flattening plate (250).

3. The liquid crystal injection device for producing a liquid crystal display according to claim 1, characterized in that: The driving member (260) comprises a bidirectional screw rod (261) and a driving motor (262); the bidirectional screw rod (261) is rotatably arranged on one side of the spreading plate (250); and the driving motor (262) is installed on one side of the spreading plate (250) and is transmission-connected to the bidirectional screw rod (261).

4. The liquid crystal injection device for producing a liquid crystal display panel according to claim 1, characterized in that: A guide rod (252) is provided at the end of the spreading plate (250), and the guide rod (252) slides through the movable plate (220).

5. The liquid crystal injection device for producing a liquid crystal display panel according to claim 1, characterized in that: The stirring box (120) comprises a box body (121), a stirring paddle (122) and a stirring motor (123); the stirring paddle (122) is rotatably disposed in the box body (121); and the stirring motor (123) is installed on the top of the box body (121) and is transmission-connected to the stirring paddle (122).

6. A liquid crystal injection device for producing a liquid crystal display screen according to claim 5, characterized in that: The injection member (140) comprises a material guide tube (141), a telescopic tube (142) and an injection nozzle (143); the end of the material guide tube (141) is fixedly connected to the first electric slide rail (130); the telescopic tube (142) is arranged between the box body (121) and the material guide tube (141); and the injection nozzle (143) is arranged in communication with the bottom of the material guide tube (141).

7. A liquid crystal injection device for producing a liquid crystal display panel according to claim 6, characterized in that: The top of the box body (121) is connected to a feeding pipe, and the bottom of the box body (121) is inclined toward the telescopic tube (142).

8. The liquid crystal injection device for producing a liquid crystal display panel according to claim 1, characterized in that: The outer wall of the stirring box (120) is provided with a heating plate (160).

Images