Rapid liquid crystal injection device for LCD (Liquid Crystal Display) production

Abstract

The invention discloses a liquid crystal rapid injection device for LCD production, and relates to the technical field of LCD production. The top of a box body is movably connected with a box door, the side face of the box body is fixedly connected with a transparent plate, the side face of the box body is fixedly connected with an air pressure booster pump, and the side, close to the air pressure booster pump, of the box body is fixedly connected with an atmosphere inflation pipeline; one side, close to the air pressure booster pump, of the box body is fixedly connected with a vacuum pump, and when the air pressure of an inner cavity of the box body reaches 1kgf / cm consistent with the external atmospheric pressure, the valve on the atmosphere inflation pipeline is closed, the valve on the air pressure booster pump is opened, and the air pressure booster pump is started; the air pressure in the cavity of the box body is increased to be 2-10 kgf / cm through the air pressure booster pump, at the moment, the difference between the pressure in the cavity in the box body and the pressure in the empty liquid crystal box is higher, the pressure difference is approximately equal to the pressure in the cavity in the box body, and under the higher pressure difference, the liquid crystal injection speed is greatly increased by 10%-200%.

Description

Technical Field

[0001] The invention relates to the technical field of LCD production, and in particular to a liquid crystal rapid injection device for LCD production. Background Art

[0002] The structure of LCD is that the liquid crystal is filled in the middle of two parallel glass substrates. TFT (thin film transistor) is set on the lower substrate glass, and color filter is set on the upper substrate glass. The signal and voltage on TFT are changed to control the rotation direction of liquid crystal molecules, so as to control the emission of polarized light at each pixel to achieve the display purpose. The liquid crystal is injected through the injection port of the liquid crystal box. The auxiliary air pressure of the liquid crystal during injection is the atmospheric pressure of the natural environment. The standard atmospheric pressure is 1.01325*10 5 Pa, due to the large viscosity coefficient of liquid crystal and the small thickness of the liquid crystal box, which is only between 2.5um and 10um, the injection time of liquid crystal is generally long, usually ranging from 20 minutes to 10 hours. Especially the smaller the box thickness and the larger the product size, the longer the injection time, resulting in low production efficiency of the product.

[0003] However, the maximum pressure difference of the traditional liquid crystal injection method is approximately equal to the standard atmospheric pressure of the external natural environment 1.01325*10 5 Pa (equivalent to 1kgf / cm 2 ), this 1kgf / cm 2 The pressure is provided by the external atmospheric pressure and is easy to obtain, but under this pressure, if the empty liquid crystal box is large in size, the injection speed of the liquid crystal is not fast. Summary of the invention

[0004] In view of the shortcomings of the prior art, the present invention adopts a technical solution to solve the technical problems: a liquid crystal rapid injection device for LCD production according to the present invention comprises: A box body, wherein the top of the box body is movably connected with a box door, the side of the box body is fixedly connected with a transparent plate, the side of the box body is fixedly connected with an air pressure pump, the side of the box body close to the air pressure pump is fixedly connected with an atmospheric inflation pipeline, the side of the box body close to the air pressure pump is fixedly connected with a vacuum pump, the inner side of the box body is fixedly connected with a bottom plate component, and an empty liquid crystal box is placed inside the box body; A placing component, which is used to place the empty liquid crystal box, and the side surface of the placing component is fixedly connected to the inner side of the box body; The placing component includes a supporting block, a side surface of the supporting block is fixedly connected to the inner side of the box body, and the end of the supporting block away from the box body is fixedly connected to the lower supporting plate, the side surface of the lower supporting plate is slidably connected to the inner side of the supporting block, the top of the lower supporting plate is slidably connected to the connecting shaft, the top of the connecting shaft is fixedly connected to the upper supporting plate, and the first spring is sleeved on the connecting shaft, the top of the first spring is fixedly connected to the bottom of the upper supporting plate, the bottom of the first spring is fixedly connected to the top of the lower supporting plate, the side surface of the lower supporting plate is fixedly connected to the second connecting block, and the end of the second connecting block away from the lower supporting plate is rotatably connected to the connecting arm, and the side surface of the upper supporting plate is fixedly connected to the first connecting block. A connecting block, wherein a connecting rod is rotatably connected to the inner side of the connecting arm, an end of the connecting rod away from the connecting arm is rotatably connected to the inner side of the first connecting block, a second spring is fixedly connected to the side of the connecting rod, the other end of the second spring is fixedly connected to the side of the connecting arm, and a contact mechanism is fixedly connected to the top of the connecting arm; by placing the empty liquid crystal box on the upper support plate and driving the empty liquid crystal box by its own weight, the upper support plate drives the connecting shaft to move downward, so that the upper support plate pulls the connecting rod to rotate on the inner side of the first connecting block, so that the connecting rod drives the connecting arm to rotate on the second connecting block, so that the connecting arm drives the contact mechanism to clamp and fix the empty liquid crystal box; Preferably, the contact mechanism comprises a contact plate, a side surface of the contact plate is fixedly connected to the top of the connecting arm, a contact groove is provided on the side surface of the contact plate, a connecting plate is fixedly connected to the inner side of the contact groove via a rubber rod, and a contact block is fixedly connected to the side surface of the connecting plate; when the connecting arm drives the contact plate to squeeze the empty liquid crystal box, the contact plate drives the connecting plate via the rubber rod to squeeze and contact the side surface of the empty liquid crystal box, and at the same time, the contact block is provided on the connecting plate, and the material of the contact block is rubber material, so as to avoid the side surface of the empty liquid crystal box from being squeezed and damaged when the empty liquid crystal box is fixed in a limited position, and at the same time, the empty liquid crystal box is fixed in a limited position, so as to avoid the empty liquid crystal box from being deflected when the air is evacuated from the box, thereby interfering with the subsequent liquid crystal injection work; Preferably, the bottom plate component includes a movable plate and a first electric hydraulic cylinder, the first electric hydraulic cylinder is fixedly connected to the bottom of the inner cavity of the box, the output end of the first electric hydraulic cylinder is fixedly connected to the bottom of the movable plate, both sides of the bottom of the movable plate are fixedly connected with sliding rods, the bottom of the sliding rods is slidably connected to the bottom of the inner cavity of the box, the side of the movable plate is slidably connected to the inner side of the box, and the top of the movable plate is fixedly connected with a connecting mechanism; after adding liquid crystal to the grooved liquid crystal strip in the connecting mechanism, by turning on the vacuum pump, when the vacuum pump draws out the air in the inner cavity of the box and the empty liquid crystal box, the vacuum pump stops working, and by closing the valve on the vacuum pump and opening the first electric hydraulic cylinder, the movable plate is driven by the output end of the first electric hydraulic cylinder. Move upward inside the box, so that the grooved liquid crystal strip in the connecting mechanism contacts the liquid crystal injection port of the empty liquid crystal box. At the same time, because the thickness of the liquid crystal box is only 2.5um to 10um, the liquid crystal begins to be slowly adsorbed and injected into the empty liquid crystal box under the capillary action of the empty liquid crystal box. The liquid crystal in the empty liquid crystal box slowly rises, and then the valve on the atmospheric gas filling pipeline is slowly opened, and the external air is slowly filled into the internal cavity of the box through the atmospheric gas filling pipeline until the air pressure in the internal cavity of the box is consistent with the external atmospheric pressure. Since the air pressure in the internal cavity of the box is higher and higher after the gas is filled, the air pressure will be pressurized on the liquid crystal. The empty liquid crystal box is in a high vacuum state and there is a pressure difference with the external air pressure. This pressure difference will accelerate the injection of liquid crystal into the empty liquid crystal box; Preferably, the connecting mechanism comprises a connecting frame, the bottom of the connecting frame is fixedly connected to the top of the movable plate, a grooved liquid crystal strip is fixedly connected to the inner side of the connecting frame, both sides of the grooved liquid crystal strip are provided with movable grooves, the inner side of the connecting frame is fixedly connected to the second electric hydraulic cylinder, the inner side of the movable groove is slidably connected to a square plate, the top of the square plate is in contact with the bottom of the inner cavity of the grooved liquid crystal strip, the side of the square plate is slidably connected to the inner side of the movable groove, the side of the square plate is fixedly connected to the output end of the second electric hydraulic cylinder, and the bottom of the grooved liquid crystal strip is fixedly connected to a cleaning mechanism; when the liquid crystal injection work is completed inside the empty liquid crystal box, when the inner side of the grooved liquid crystal strip needs to be cleaned, the second electric hydraulic cylinder is opened at the same time, and the square plate is driven to move in the movable groove through the output end of the second electric hydraulic cylinder, so that the square plate is separated from the top of the cleaning mechanism; Preferably, the cleaning mechanism comprises a connecting shell, the top of the connecting shell is fixedly connected to the bottom of the inner cavity of the grooved liquid crystal strip, the bottom of the inner cavity of the connecting shell is fixedly connected to a third electric hydraulic cylinder, the output end of the third electric hydraulic cylinder is fixedly connected to a scraper kit, the bottom of the inner cavity of the connecting shell is slidably connected to a telescopic rod, and the top of the telescopic rod is fixedly connected to the scraper kit; when the square plate is separated from the top of the connecting shell, the scraper kit is driven to move upward by opening the third electric hydraulic cylinder and the output end of the third electric hydraulic cylinder, so that the scraper kit continues to move upward in the connecting shell, and when the scraper kit is separated from the connecting shell, the scraper kit contacts and cleans the inner side of the grooved liquid crystal strip, thereby cleaning the connecting shell; Preferably, the scraper kit includes a scraper shell, the bottom of the scraper shell is fixedly connected to the output end of the third electric hydraulic cylinder, the bottom of the scraper shell is fixedly connected to the top of the telescopic rod, both sides of the inner cavity of the scraper shell are slidably connected with round rods, one end of the round rod away from the inner side of the scraper shell is fixedly connected to a block, a third spring is sleeved on the round rod, one end of the third spring is fixedly connected to the inner side of the scraper shell, the other end of the third spring is fixedly connected to the block, and one end of the block away from the round rod is fixedly connected to the scraper; when the output end of the third electric hydraulic cylinder drives the scraper shell to move continuously upward, when the scraper shell is separated from the inner side of the connection shell, the block is driven by the stretching of the third spring, so that the block drives the scraper to move toward the inner side of the connection shell through the round rod, and at the same time, it is driven by the output end of the third electric hydraulic cylinder to move continuously upward, so that the scraper contacts and cleans the inner side of the groove liquid crystal strip, thereby avoiding that a large amount of liquid crystal will adhere to the inner side of the groove liquid crystal strip during liquid crystal injection, making it difficult to fall naturally.

[0005] The beneficial effects of the present invention are as follows: 1. The present invention is provided with an air pressure boosting pump, a vacuum pump and an atmospheric inflation pipe. When the air pressure in the internal cavity of the box reaches 1kgf / cm² which is consistent with the external atmospheric pressure, the valve on the atmospheric inflation pipe is closed, the valve on the air pressure boosting pump is opened, and the air pressure boosting pump is started. The air pressure in the cavity of the box is pressurized to a pressure state of 2 to 10kgf / cm² through the air pressure boosting pump. At this time, the pressure difference between the internal cavity of the box and the pressure in the empty liquid crystal box is higher, and the pressure difference is approximately equal to the pressure in the internal cavity of the box. Under a higher pressure difference, the injection speed of the liquid crystal will be greatly increased by 10% to 200%.

[0006] 2. The present invention provides a contact mechanism. When the connecting arm drives the contact plate to squeeze the empty liquid crystal box, the contact plate drives the connecting plate through the rubber rod to squeeze and contact the side of the empty liquid crystal box. At the same time, a contact block is provided on the connecting plate, and the material of the contact block is rubber material. This avoids squeezing damage to the side of the empty liquid crystal box when the empty liquid crystal box is limited and fixed. At the same time, the empty liquid crystal box is limited and fixed, so that the empty liquid crystal box is not deviated when the air is evacuated from the box, thereby interfering with the subsequent liquid crystal injection work.

[0007] 3. The present invention sets a connecting mechanism. When the liquid crystal injection work is completed inside the empty liquid crystal box and the inner side of the groove liquid crystal strip needs to be cleaned, the second electric hydraulic cylinder is opened at the same time, and the square plate is driven to move in the moving groove through the output end of the second electric hydraulic cylinder, so that the square plate is separated from the top of the cleaning mechanism.

[0008] 4. The present invention provides a cleaning mechanism. When the square plate is detached from the top of the connection shell, the third electric hydraulic cylinder is opened and the scraper kit is driven to move upward through the output end of the third electric hydraulic cylinder, so that the scraper kit continues to move upward in the connection shell. When the scraper kit is detached from the connection shell, the scraper kit contacts and cleans the inner side of the grooved liquid crystal strip, thereby cleaning the connection shell.

[0009] 5. The present invention sets a scraper kit. When the output end of the third electric hydraulic cylinder drives the scraper shell to move continuously upward, when the scraper shell is detached from the inner side of the connection shell, the block is driven by the stretching of the third spring, so that the block drives the scraper to move toward the inner side of the connection shell through the round rod, and at the same time, it is driven by the output end of the third electric hydraulic cylinder to move continuously upward, so that the scraper contacts and cleans the inner side of the groove liquid crystal strip, thereby avoiding a large amount of liquid crystal adhering to the inner side of the groove liquid crystal strip during liquid crystal injection, making it difficult to fall off naturally. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a structural schematic diagram of a liquid crystal rapid injection device for LCD production of the present invention; Figure 2 is a cross-sectional view of the present invention; Figure 3 is an axonometric view of the present invention; Figure 4 is a schematic structural diagram of an empty liquid crystal cell of the present invention; Figure 5 It is a schematic diagram of the structure of the placement components of the present invention; Figure 6 It is a structural schematic diagram of the contact mechanism of the present invention; Figure 7 It is a structural schematic diagram of the bottom plate component of the present invention; Figure 8 It is a structural schematic diagram of the connection mechanism of the present invention; Fig. 9 is a schematic structural diagram of a grooved liquid crystal strip of the present invention; Fig.10 It is a structural schematic diagram of the cleaning mechanism of the present invention; Fig.11 It is a structural schematic diagram of the scraper kit of the present invention; In the figure: 1, box body; 2, box door; 3, transparent plate; 4, air pressure pump; 5, placement component; 51, support block; 52, lower support plate; 53, connecting shaft; 54, upper support plate; 55, first spring; 56, first connecting block; 57, second connecting block; 58, second spring; 59, contact mechanism; 591, contact plate; 592, contact groove; 593, connecting plate; 594, contact block; 510, connecting arm; 511, connecting rod; 6, bottom plate component; 61, moving plate; 62, first electric hydraulic cylinder; 63 , sliding rod; 64, connecting mechanism; 641, connecting frame; 642, grooved liquid crystal strip; 643, moving groove; 644, cleaning mechanism; 6441, connecting shell; 6442, third electric hydraulic cylinder; 6443, telescopic rod; 6444, scraper kit; 64441, scraper shell; 64442, round rod; 64443, third spring; 64444, square; 64445, scraper; 645, second electric hydraulic cylinder; 646, square plate; 7, empty liquid crystal box; 8, atmospheric inflation pipe; 9, vacuum pump. DETAILED DESCRIPTION

[0011] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

[0012] Example 1, using Figure 1-Figure 6 A liquid crystal rapid injection device for LCD production according to one embodiment of the present invention is described as follows: like Figure 1-Figure 6 The present invention shows a liquid crystal rapid injection device for LCD production, comprising: A box body 1, a box door 2 is movably connected to the top of the box body 1, a transparent plate 3 is fixedly connected to the side of the box body 1, an air pressure boosting pump 4 is fixedly connected to the side of the box body 1, an atmospheric inflation pipe 8 is fixedly connected to the side of the box body 1 close to the air pressure boosting pump 4, a vacuum pump 9 is fixedly connected to the side of the box body 1 close to the air pressure boosting pump 4, a bottom plate component 6 is fixedly connected to the inner side of the box body 1, and an empty liquid crystal box 7 is placed inside the box body 1; A placing component 5, which is used to place the empty liquid crystal box 7, and the side surface of the placing component 5 is fixedly connected to the inner side of the box body 1; The placing component 5 includes a supporting block 51, the side of the supporting block 51 is fixedly connected to the inner side of the box body 1, the end of the supporting block 51 away from the box body 1 is fixedly connected to a lower supporting plate 52, the side of the lower supporting plate 52 is slidably connected to the inner side of the supporting block 51, the top of the lower supporting plate 52 is slidably connected to a connecting shaft 53, the top of the connecting shaft 53 is fixedly connected to an upper supporting plate 54, a first spring 55 is sleeved on the connecting shaft 53, the top of the first spring 55 is fixedly connected to the bottom of the upper supporting plate 54, the bottom of the first spring 55 is fixedly connected to the top of the lower supporting plate 52, the side of the lower supporting plate 52 is fixedly connected to a second connecting block 57, the end of the second connecting block 57 away from the lower supporting plate 52 is rotatably connected to a connecting arm 510, the side of the upper supporting plate 54 is fixedly connected to a first connecting block 56, the connecting arm 510 The inner side of the connecting rod 511 is rotatably connected, and one end of the connecting rod 511 away from the connecting arm 510 is rotatably connected to the inner side of the first connecting block 56, and the side of the connecting rod 511 is fixedly connected to the second spring 58, and the other end of the second spring 58 is fixedly connected to the side of the connecting arm 510, and the top of the connecting arm 510 is fixedly connected to the contact mechanism 59; by placing the empty liquid crystal box 7 on the upper support plate 54, and driven by the weight of the empty liquid crystal box 7, the upper support plate 54 drives the connecting shaft 53 to move downward, so that the upper support plate 54 pulls the connecting rod 511 to rotate on the inner side of the first connecting block 56, so that the connecting rod 511 drives the connecting arm 510 to rotate on the second connecting block 57, so that the connecting arm 510 drives the contact mechanism 59 to clamp and fix the empty liquid crystal box 7; The contact mechanism 59 comprises a contact plate 591, the side of which is fixedly connected to the top of the connecting arm 510, a contact groove 592 is provided on the side of the contact plate 591, a connecting plate 593 is fixedly connected to the inner side of the contact groove 592 via a rubber rod, and a contact block 594 is fixedly connected to the side of the connecting plate 593; when the connecting arm 510 drives the contact plate 591 to squeeze the empty liquid crystal box 7, the contact plate 591 drives the connecting plate 593 via the rubber rod to squeeze and contact the side of the empty liquid crystal box 7, and at the same time, a contact block 594 is provided on the connecting plate 593, and the material of the contact block 594 is rubber material, so as to avoid the side of the empty liquid crystal box 7 from being squeezed and damaged when the empty liquid crystal box 7 is limited and fixed, and at the same time, the empty liquid crystal box 7 is limited and fixed, so as to avoid the empty liquid crystal box 7 from being deflected when the air is evacuated from the box body 1, thereby interfering with the subsequent liquid crystal injection work; Embodiment 2, use Figure 7-Figure 11 The liquid crystal rapid injection device for LCD production of the present invention is described as follows: like Figure 7-Figure 11 The present invention shows a liquid crystal rapid injection device for LCD production, based on the first embodiment; The bottom plate component 6 includes a moving plate 61 and a first electric hydraulic cylinder 62, the first electric hydraulic cylinder 62 is fixedly connected to the bottom of the inner cavity of the box body 1, the output end of the first electric hydraulic cylinder 62 is fixedly connected to the bottom of the moving plate 61, both sides of the bottom of the moving plate 61 are fixedly connected with sliding rods 63, the bottom of the sliding rod 63 is slidably connected to the bottom of the inner cavity of the box body 1, the side of the moving plate 61 is slidably connected to the inner side of the box body 1, and the top of the moving plate 61 is fixedly connected with a connecting mechanism 64; after adding liquid crystal to the groove liquid crystal strip 642 in the connecting mechanism 64, by opening the vacuum pump 9, when the vacuum pump 9 extracts the air in the inner cavity of the box body 1 and the empty liquid crystal box 7, the vacuum pump 9 stops working, by closing the valve on the vacuum pump 9, by opening the first electric hydraulic cylinder 62, the moving plate 61 is driven by the output end of the first electric hydraulic cylinder 62 The moving plate 61 moves upward inside the box 1, so that the grooved liquid crystal strip 642 in the connecting mechanism 64 contacts the liquid crystal injection port of the empty liquid crystal box 7. At the same time, because the thickness of the liquid crystal box is only 2.5um to 10um, the liquid crystal begins to be slowly adsorbed and injected into the empty liquid crystal box 7 under the capillary action of the empty liquid crystal box 7. The liquid crystal in the empty liquid crystal box 7 slowly rises, and then the valve on the atmospheric gas filling pipe 8 is slowly opened, and the external air is slowly filled into the internal cavity of the box 1 through the atmospheric gas filling pipe 8 until the air pressure in the internal cavity of the box 1 is consistent with the external atmospheric pressure. Since the air pressure in the internal cavity of the box 1 becomes higher and higher after the gas is filled, the air pressure will be pressurized on the liquid crystal. The empty liquid crystal box 7 is in a high vacuum state and there is a pressure difference with the external air pressure. This pressure difference will accelerate the injection of liquid crystal into the empty liquid crystal box 7. The connecting mechanism 64 includes a connecting frame 641, the bottom of the connecting frame 641 is fixedly connected to the top of the moving plate 61, the inner side of the connecting frame 641 is fixedly connected to a grooved liquid crystal strip 642, both sides of the grooved liquid crystal strip 642 are provided with moving grooves 643, the inner side of the connecting frame 641 is fixedly connected to a second electric hydraulic cylinder 645, the inner side of the moving groove 643 is slidably connected to a square plate 646, the top of the square plate 646 is in contact with the bottom of the inner cavity of the grooved liquid crystal strip 642, and the side of the square plate 646 is slidably connected to the inner side of the moving groove 643. The side of the square plate 646 is fixedly connected to the output end of the second electric hydraulic cylinder 645, and the bottom of the groove liquid crystal strip 642 is fixedly connected with a cleaning mechanism 644; when the liquid crystal injection work is completed inside the empty liquid crystal box 7, it is necessary to clean the inner side of the groove liquid crystal strip 642, and the second electric hydraulic cylinder 645 is opened at the same time, and the square plate 646 is driven to move in the moving groove 643 through the output end of the second electric hydraulic cylinder 645, so that the square plate 646 is separated from the top of the cleaning mechanism 644; The cleaning mechanism 644 includes a connecting shell 6441, the top of the connecting shell 6441 is fixedly connected to the bottom of the inner cavity of the grooved liquid crystal strip 642, the bottom of the inner cavity of the connecting shell 6441 is fixedly connected to a third electric hydraulic cylinder 6442, the output end of the third electric hydraulic cylinder 6442 is fixedly connected to a scraper kit 6444, the bottom of the inner cavity of the connecting shell 6441 is slidably connected to a telescopic rod 6443, and the top of the telescopic rod 6443 is fixedly connected to the scraper kit 6444; when the square plate 646 is separated from the top of the connecting shell 6441, the scraper kit 6444 is driven to move upwards by opening the third electric hydraulic cylinder 6442 and the output end of the third electric hydraulic cylinder 6442, so that the scraper kit 6444 continues to move upwards in the connecting shell 6441, and when the scraper kit 6444 is separated from the connecting shell 6441, the scraper kit 6444 contacts and cleans the inner side of the grooved liquid crystal strip 642, thereby cleaning the connecting shell 6441; The scraper kit 6444 includes a scraper shell 64441, the bottom of the scraper shell 64441 is fixedly connected to the output end of the third electric hydraulic cylinder 6442, the bottom of the scraper shell 64441 is fixedly connected to the top of the telescopic rod 6443, both sides of the inner cavity of the scraper shell 64441 are slidably connected with round rods 64442, one end of the round rod 64442 away from the inner side of the scraper shell 64441 is fixedly connected to a block 64444, a third spring 64443 is sleeved on the round rod 64442, one end of the third spring 64443 is fixedly connected to the inner side of the scraper shell 64441, the other end of the third spring 64443 is fixedly connected to the block 64444, and one end of the block 64444 away from the round rod 64442 is fixedly connected to the scraper plate 64445; when the output end of the third electric hydraulic cylinder 6442 drives the scraper housing 64441 to continuously move upward, when the scraper housing 64441 is separated from the inner side of the connection housing 6441, the block 64444 is driven by the stretching of the third spring 64443, so that the block 64444 drives the scraper 64445 to move toward the inner side of the connection housing 6441 through the round rod 64442, and at the same time, is driven by the output end of the third electric hydraulic cylinder 6442 to continuously move upward, so that the scraper 64445 contacts and cleans the inner side of the grooved liquid crystal strip 642, thereby preventing a large amount of liquid crystal from adhering to the inner side of the grooved liquid crystal strip 642 during the liquid crystal injection work, and making it difficult to fall off naturally; The specific workflow is as follows: During operation, the empty liquid crystal box 7 is placed on the placement component 5 by opening the box door 2, and liquid crystal is added to the bottom plate component 6, the door of the box body 1 is closed, and the vacuum pump 9 is turned on to extract the air in the internal cavity of the box body 1, and the air in the empty liquid crystal box 7 is also extracted until the vacuum degree reaches 0.05-5 Pa. The vacuum pump 9 stops working, the valve on the vacuum pump 9 is closed, and the bottom plate component 6 is raised so that the liquid crystal contacts the liquid crystal injection port at the bottom of the empty liquid crystal box 7. Since the box thickness of the empty liquid crystal box 7 is only 2.5um-10um, the liquid crystal begins to be slowly adsorbed and injected into the empty liquid crystal box 7 under the capillary action of the empty liquid crystal box 7, and the liquid crystal in the empty liquid crystal box 7 slowly rises, and then the valve on the atmospheric inflation pipe is slowly opened, and the external air is slowly filled into the internal cavity of the box body 1 through the atmospheric inflation pipe 8 until the air pressure in the inner cavity of the box body 1 is consistent with the external atmospheric pressure. Since the air pressure in the internal cavity of the box body 1 becomes higher and higher after the gas is filled, the air pressure will be pressurized on the liquid crystal, and the inside of the empty liquid crystal box 7 is in a high pressure. There is a pressure difference between the vacuum state and the external air pressure. This pressure difference will accelerate the injection of liquid crystal into the empty liquid crystal box 7. However, in the traditional liquid crystal injection method, the maximum pressure difference is approximately equal to the standard atmospheric pressure of the external natural environment, 1.01325*105Pa, which is converted to 1kgf / cm². This 1kgf / cm² pressure is provided by the external atmospheric pressure and is easy to obtain. However, under this pressure, if the empty liquid crystal box 7 is large in size, the injection speed of the liquid crystal is not fast. When the air pressure in the cavity of the box 1 reaches 1kgf / cm², which is consistent with the external atmospheric pressure, the valve on the atmospheric inflation pipe 8 is closed, the valve on the air pressure boosting pump 4 is opened, and the air pressure boosting pump 4 is started. The air pressure in the cavity of the box 1 is pressurized to a pressure state of 2 to 10kgf / cm² through the air pressure boosting pump 4. At this time, the pressure difference between the pressure in the cavity of the box 1 and the empty liquid crystal box 7 is higher, and the pressure difference is approximately equal to the pressure in the cavity of the box 1. Under a higher pressure difference, the injection speed of the liquid crystal will be greatly increased by 10% to 200%. By placing the empty liquid crystal box 7 on the upper support plate 54, and driven by the weight of the empty liquid crystal box 7, the upper support plate 54 drives the connecting shaft 53 to move downward, so that the upper support plate 54 pulls the connecting rod 511 to rotate on the inner side of the first connecting block 56, so that the connecting rod 511 drives the connecting arm 510 to rotate on the second connecting block 57, so that the connecting arm 510 drives the contact mechanism 59 to clamp and fix the empty liquid crystal box 7; When the connecting arm 510 drives the contact plate 591 to squeeze the empty liquid crystal box 7, the contact plate 591 drives the connecting plate 593 through the rubber rod to squeeze and contact the side of the empty liquid crystal box 7. At the same time, by arranging a contact block 594 on the connecting plate 593, and the material of the contact block 594 is rubber, it is avoided that when the empty liquid crystal box 7 is limited and fixed, the side of the empty liquid crystal box 7 is prevented from being squeezed and damaged. At the same time, by limiting and fixing the empty liquid crystal box 7, it is avoided that the empty liquid crystal box 7 is deflected when the air is evacuated from the box body 1, thereby interfering with the subsequent liquid crystal injection work. After adding liquid crystal to the grooved liquid crystal strip 642 in the connecting mechanism 64, the vacuum pump 9 is turned on. When the vacuum pump 9 extracts the air in the inner cavity of the box body 1 and the empty liquid crystal box 7, the vacuum pump 9 stops working, and the valve on the vacuum pump 9 is closed. The first electric hydraulic cylinder 62 is opened, and the output end of the first electric hydraulic cylinder 62 drives the moving plate 61 to move upward inside the box body 1, so that the grooved liquid crystal strip 642 in the connecting mechanism 64 contacts the liquid crystal injection port of the empty liquid crystal box 7. At the same time, because the thickness of the liquid crystal box is only 2.5um to 10um, the liquid crystal begins to be slowly adsorbed and injected into the empty liquid crystal box 7 under the capillary action of the empty liquid crystal box 7, and the liquid crystal in the empty liquid crystal box 7 slowly rises, and then the valve on the atmospheric gas filling pipe 8 is slowly opened, and the external air is slowly filled into the internal cavity of the box body 1 through the atmospheric gas filling pipe 8 until the air pressure in the internal cavity of the box body 1 is consistent with the external atmospheric pressure. Since the air pressure in the internal cavity of the box body 1 is getting higher and higher after the gas is filled, the air pressure will be pressurized on the liquid crystal, and the empty liquid crystal box 7 is in a high vacuum state and there is a pressure difference with the external air pressure. This air pressure difference will accelerate the injection of liquid crystal into the empty liquid crystal box 7; When the air pressure in the cavity of the box 1 reaches 1kgf / cm², which is the same as the external atmospheric pressure, the valve on the atmospheric charging pipe 8 is closed, the valve on the air pressure boosting pump 4 is opened, and the air pressure boosting pump 4 is started. The air pressure in the cavity of the box 1 is pressurized to a pressure state of 5kgf / cm² through the air pressure boosting pump 4. At this time, the pressure difference between the air pressure in the cavity of the box 1 and the pressure in the empty liquid crystal box 7 is approximately equal to 5kgf / cm². Under a higher pressure difference, the injection speed of the liquid crystal is greatly increased by about 80% compared with the conventional pressure injection method for the same empty liquid crystal box 7; When the air pressure in the cavity of the box 1 reaches 1kgf / cm², which is consistent with the external atmospheric pressure, the valve on the atmospheric inflation pipe 8 is closed, the valve on the air pressure boosting pump 4 is opened, and the air pressure boosting pump 4 is started. The air pressure in the cavity of the box 1 is pressurized to a pressure state of 8kgf / cm² through the air pressure boosting pump 4. At this time, the pressure difference between the air pressure in the cavity of the box 1 and the pressure in the empty liquid crystal box 7 is approximately equal to 8kgf / cm². Under a higher pressure difference, for the same empty liquid crystal box 7, the injection speed of the liquid crystal is greatly increased by about 150% compared with the conventional pressure injection method; When the air pressure in the cavity of the box 1 reaches 1kgf / cm², which is consistent with the external atmospheric pressure, the valve on the atmospheric inflation pipe 8 is closed, the valve on the air pressure boosting pump 4 is opened, and the air pressure boosting pump 4 is started. The air pressure in the cavity of the box 1 is pressurized to a pressure state of 10kgf / cm² through the air pressure boosting pump 4. At this time, the pressure difference between the air pressure in the cavity of the box 1 and the pressure in the empty liquid crystal box 7 is approximately equal to 10kgf / cm². Under a higher pressure difference, for the same empty liquid crystal box 7, the injection speed of the liquid crystal is greatly increased by about 180% compared with the conventional pressure injection method; After the liquid crystal injection work is completed inside the empty liquid crystal box 7, when it is necessary to clean the inner side of the groove liquid crystal strip 642, the second electric hydraulic cylinder 645 is opened at the same time, and the square plate 646 is driven to move in the moving groove 643 through the output end of the second electric hydraulic cylinder 645, so that the square plate 646 is separated from the top of the cleaning mechanism 644; When the square plate 646 is separated from the top of the connection housing 6441, the third electric hydraulic cylinder 6442 is opened, and the scraper kit 6444 is driven to move upward through the output end of the third electric hydraulic cylinder 6442, so that the scraper kit 6444 continues to move upward in the connection housing 6441. When the scraper kit 6444 is separated from the connection housing 6441, the scraper kit 6444 contacts and cleans the inner side of the grooved liquid crystal strip 642, thereby cleaning the connection housing 6441; When the output end of the third electric hydraulic cylinder 6442 drives the scraper housing 64441 to continuously move upward, when the scraper housing 64441 is separated from the inner side of the connection housing 6441, the block 64444 is driven by the stretching of the third spring 64443, so that the block 64444 drives the scraper 64445 to move toward the inner side of the connection housing 6441 through the round rod 64442, and at the same time, is driven by the output end of the third electric hydraulic cylinder 6442 to continuously move upward, so that the scraper 64445 contacts and cleans the inner side of the grooved liquid crystal strip 642, thereby preventing a large amount of liquid crystal from adhering to the inner side of the grooved liquid crystal strip 642 during the liquid crystal injection work, and making it difficult to fall off naturally; Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field and related fields without creative work should fall within the scope of protection of the present invention. The structures, devices and operating methods not specifically described and explained in the present invention are implemented according to the conventional means in the field unless otherwise specified and limited.

Claims

1. A liquid crystal rapid injection device for LCD production, characterized in that: include: A box body (1), wherein the top of the box body (1) is movably connected to a box door (2), the side of the box body (1) is fixedly connected to a transparent plate (3), the side of the box body (1) is fixedly connected to an air pressure pump (4), the side of the box body (1) close to the air pressure pump (4) is fixedly connected to an atmospheric inflation pipe (8), the side of the box body (1) close to the air pressure pump (4) is fixedly connected to a vacuum pump (9), the inner side of the box body (1) is fixedly connected to a bottom plate component (6), and an empty liquid crystal box (7) is placed on the inner side of the box body (1); A placement component (5), the placement component (5) being used to place the empty liquid crystal box (7), the side surface of the placement component (5) being fixedly connected to the inner side of the box body (1); The placement component (5) comprises a support block (51), the side surface of the support block (51) being fixedly connected to the inner side of the box body (1), the end of the support block (51) away from the box body (1) being fixedly connected to a lower support plate (52), the top of the lower support plate (52) being slidably connected to a connecting shaft (53), the top of the connecting shaft (53) being fixedly connected to an upper support plate (54), the connecting shaft (53) being sleeved with a first spring (55), the side surface of the lower support plate (52) being fixedly connected to a second connecting block (57), the second connecting block (57) being away from the lower support plate ( One end of the upper support plate (52) is rotatably connected to a connecting arm (510), a side surface of the upper support plate (54) is fixedly connected to a first connecting block (56), an inner side of the connecting arm (510) is rotatably connected to a connecting rod (511), an end of the connecting rod (511) away from the connecting arm (510) is rotatably connected to the inner side of the first connecting block (56), a side surface of the connecting rod (511) is fixedly connected to a second spring (58), the other end of the second spring (58) is fixedly connected to the side surface of the connecting arm (510), and a contact mechanism (59) is fixedly connected to the top of the connecting arm (510).

2. The liquid crystal rapid injection device for LCD production according to claim 1, characterized in that: The top of the first spring (55) is fixedly connected to the bottom of the upper support plate (54), the bottom of the first spring (55) is fixedly connected to the top of the lower support plate (52), and the side surface of the lower support plate (52) is slidably connected to the inner side of the support block (51).

3. The liquid crystal rapid injection device for LCD production according to claim 1, characterized in that: The contact mechanism (59) comprises a contact plate (591), the side surface of the contact plate (591) being fixedly connected to the top of the connecting arm (510), the side surface of the contact plate (591) being provided with a contact groove (592), the inner side of the contact groove (592) being fixedly connected to a connecting plate (593) via a rubber rod, and the side surface of the connecting plate (593) being fixedly connected to a contact block (594).

4. The liquid crystal rapid injection device for LCD production according to claim 1, characterized in that: The bottom plate component (6) comprises a movable plate (61) and a first electric hydraulic cylinder (62), wherein the first electric hydraulic cylinder (62) is fixedly connected to the bottom of the inner cavity of the box body (1), and the output end of the first electric hydraulic cylinder (62) is fixedly connected to the bottom of the movable plate (61), and sliding rods (63) are fixedly connected to both sides of the bottom of the movable plate (61), and the bottom of the sliding rod (63) is slidably connected to the bottom of the inner cavity of the box body (1), and the side of the movable plate (61) is slidably connected to the inner side of the box body (1), and the top of the movable plate (61) is fixedly connected to a connecting mechanism (64).

5. The liquid crystal rapid injection device for LCD production according to claim 4, characterized in that: The connection mechanism (64) comprises a connection frame (641), a grooved liquid crystal strip (642) is fixedly connected to the inner side of the connection frame (641), both sides of the grooved liquid crystal strip (642) are provided with movable grooves (643), a second electric hydraulic cylinder (645) is fixedly connected to the inner side of the connection frame (641), a square plate (646) is slidably connected to the inner side of the movable groove (643), a side surface of the square plate (646) is fixedly connected to the output end of the second electric hydraulic cylinder (645), and a cleaning mechanism (644) is fixedly connected to the bottom of the grooved liquid crystal strip (642).

6. The liquid crystal rapid injection device for LCD production according to claim 5, characterized in that: The cleaning mechanism (644) comprises a connecting shell (6441), the bottom of the inner cavity of the connecting shell (6441) is fixedly connected to a third electric hydraulic cylinder (6442), the output end of the third electric hydraulic cylinder (6442) is fixedly connected to a scraper kit (6444), the bottom of the inner cavity of the connecting shell (6441) is slidably connected to a telescopic rod (6443), and the top of the telescopic rod (6443) is fixedly connected to the scraper kit (6444).

7. The liquid crystal rapid injection device for LCD production according to claim 6, characterized in that: The side surface of the square plate (646) is slidably connected to the inner side of the movable groove (643), the bottom of the connecting frame (641) is fixedly connected to the top of the movable plate (61), the top of the square plate (646) is in contact with the bottom of the inner cavity of the grooved liquid crystal strip (642), and the top of the connecting shell (6441) is fixedly connected to the bottom of the inner cavity of the grooved liquid crystal strip (642).

8. The liquid crystal rapid injection device for LCD production according to claim 6, characterized in that: The scraper kit (6444) comprises a scraper shell (64441), both sides of the inner cavity of the scraper shell (64441) are slidably connected to round rods (64442), one end of the round rod (64442) away from the inner side of the scraper shell (64441) is fixedly connected to a block (64444), a third spring (64443) is sleeved on the round rod (64442), and one end of the block (64444) away from the round rod (64442) is fixedly connected to a scraper (64445).

9. The liquid crystal rapid injection device for LCD production according to claim 8, characterized in that: The bottom of the scraper housing (64441) is fixedly connected to the output end of the third electric hydraulic cylinder (6442), the bottom of the scraper housing (64441) is fixedly connected to the top of the telescopic rod (6443), one end of the third spring (64443) is fixedly connected to the inner side of the scraper housing (64441), and the other end of the third spring (64443) is fixedly connected to the block (64444).

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