Degassing machine and degassing method for liquid crystal display screen

Abstract

The present invention discloses a degassing machine and a degassing method for a liquid crystal display screen, and belongs to the field of degassing machines. The degassing machine comprises a machine body, a chamber is provided inside the machine body, and a rotating shaft is rotatably connected to the middle position inside the chamber, and two groups of symmetrical first cylinders are fixedly connected to the outer side of the rotating shaft, and the number of the first cylinders in each group is at least two; a screen cleaning component is provided on the inner wall of the chamber on one side of the rotating shaft, and a screen inspection component is provided on the inner wall of the chamber on the other side of the rotating shaft, and a dustproof loading and unloading mechanism is provided at the lower part of the chamber, and a pressure component is fixedly connected to the top of the machine body. The present invention adopts a reverse-upward conveying method when loading and unloading the liquid crystal display screen to prevent dust in the air from falling on the front of the liquid crystal display screen. At the same time, the screen cleaning component is provided to further improve the cleanliness of the front of the liquid crystal display screen, thereby preventing dust from affecting the final degassing effect.

Description

Technical Field

[0001] The invention relates to the field of degassing machines, in particular to a degassing machine and a degassing method for a liquid crystal display screen. Background Art

[0002] Liquid crystal display degassing machine, also known as LCD automatic degassing machine, LCD defoaming machine, LCD degassing machine, etc., is a manufacturing equipment that uses specific technology (such as pressure and temperature control) to remove bubbles generated during the LCD display bonding process. This equipment is mainly used in liquid crystal module production lines, especially after the processes between polarizer and LCD glass, ITO film and glass are completed, when there are bubbles in the polarizer correction, the internal bubbles in the LCD panel are removed in an automated way to ensure the bonding quality.

[0003] Existing degassing equipment will apply appropriate pressure to the LCD screen during the bonding process to quickly remove bubbles from the screen, but this method has certain defects. The display screen on the production line is facing up when undergoing degassing, which makes the display screen easily contaminated by dust in the air when it reaches the degassing station, affecting the final degassing effect.

[0004] Therefore, those skilled in the art provide a degassing machine and a degassing method for a liquid crystal display screen to solve the problems raised in the above background technology. Summary of the invention

[0005] The purpose of the present invention is to provide a degassing machine and a degassing method for a liquid crystal display screen. When loading and unloading the liquid crystal display screen, a conveying method with the back side facing upward is adopted to prevent dust in the air from falling on the front side of the liquid crystal display screen. At the same time, a screen cleaning component is set up to further improve the cleanliness of the front side of the liquid crystal display screen, thereby preventing dust from affecting the final degassing effect, so as to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A degassing machine for a liquid crystal display screen comprises a machine body, a chamber is provided inside the machine body, and a rotating shaft is rotatably connected to the middle position inside the chamber, two groups of symmetrical first cylinders are fixedly connected to the outer side surface of the rotating shaft, the number of the first cylinders in each group is at least two, the output shafts of each group of the first cylinders are commonly fixedly connected to a negative pressure adsorption plate, a first stepper motor is embedded on an inner wall of one side of the chamber, and the output shaft of the first stepper motor is fixedly connected to the rotating shaft;

[0008] A screen cleaning assembly is provided on the inner wall of the chamber on one side of the rotating shaft, and a screen inspection assembly is provided on the inner wall of the chamber on the other side of the rotating shaft. A dustproof loading and unloading mechanism is provided at the lower part of the chamber, and a pressure assembly is fixedly connected to the top of the machine body.

[0009] As a further solution of the present invention: the pressure-applying assembly specifically includes: four support rods distributed in a rectangular shape and fixed on the top surface of the body, the top ends of the four support rods are commonly fixedly connected to a support plate, and the top surface of the support plate is fixedly connected to a hydraulic cylinder, the bottom output shaft of the hydraulic cylinder passes through the support plate and is fixedly connected to a lifting plate, and the bottom end surface of the lifting plate is provided with a pre-pressure pressing plate mechanism, both sides of the top surface of the lifting plate are fixedly connected with optical axes, and the top end of the optical axis passes through the support plate, and the top surface of the chamber is provided with a working opening for the lifting plate to pass through.

[0010] As a further solution of the present invention: the pre-pressure plate mechanism specifically includes: a central pressure plate arranged in the middle position below the lifting plate, the external movably connected to the central pressure plate is a first rectangular enclosure matching the central pressure plate, and the external movably connected to the first rectangular enclosure matching the first rectangular enclosure, a third rectangular enclosure matching the second rectangular enclosure is fixedly connected to the bottom end surface of the lifting plate outside the second rectangular enclosure, and elastic parts are provided between the second rectangular enclosure, the first rectangular enclosure and the central pressure plate and the lifting plate, and a limiting groove matching the second rectangular enclosure is opened on the bottom end surface of the lifting plate.

[0011] As a further solution of the present invention: the elastic member specifically includes: a plurality of shaft rods evenly fixed on the edge positions of the second rectangular enclosure, the first rectangular enclosure and the top end surface of the center pressure plate, an shaft hole is opened at the position of the bottom end surface of the lifting plate corresponding to the shaft rod, and the top end of the shaft rod passes through the inside of the shaft hole and is fixedly connected with an anti-slip sheet, and a spring column is fixedly connected between the top end surface of the anti-slip sheet and the top wall of the shaft hole.

[0012] As a further solution of the present invention: the screen cleaning assembly specifically includes: a first rectangular support plate fixed on the inner wall of one side of the chamber, the first rectangular support plate is movably connected to the outside of the first telescopic cover plate, and a first notch is opened on one side of the first telescopic cover plate, the top end surface and the bottom end surface of the first rectangular support plate are fixedly connected to the first linear guide, and the outer side surface of the first linear guide is movably connected to the first linear motor, the first linear motor is fixedly connected to the inner side surface of the first telescopic cover plate, the inside of the first rectangular support plate is fixedly connected to the cleaning seat, and the top end and the bottom end of the inner wall of the first rectangular support plate are symmetrically fixedly connected to the blower head, a second cylinder is embedded in the middle position of the inside of the cleaning seat, and the output shaft of the second cylinder passes through the cleaning seat and is fixedly connected to the push plate, a slot is opened on one side of the push plate, circular grooves are opened inside the cleaning seats on both sides of the second cylinder, and a reel is rotatably connected inside the circular groove, a rotating motor is embedded on the inner wall of one side of the circular groove, and the output shaft of the rotating motor is fixedly connected to the corresponding reel, a sticky dust sticker is wound between the two reels, and the sticky dust sticker passes through the slot.

[0013] As a further solution of the present invention: the screen inspection assembly specifically includes: a second rectangular support plate fixed on the inner wall on the other side of the chamber, the second rectangular support plate is movably connected to the outside of the second telescopic cover plate, and a second slot is provided on one side of the second telescopic cover plate, the top end surface and the bottom end surface of the second rectangular support plate are fixedly connected to the second linear guide, and the outer side surface of the second linear guide is movably connected to the second linear motor, the second linear motor is fixedly connected to the inner side surface of the second telescopic cover plate, the second rectangular support plate is fixedly connected to two parallel arc plates inside, the two arc plates are jointly sleeved with an adjustment seat on the outside, and a camera is fixedly connected to one side of the adjustment seat, an arc groove is provided inside the adjustment seat for the arc plate to pass through, and a driving groove is provided on one side of the arc groove, a driving gear is rotatably connected to the inside of the driving groove, and a second stepping motor is embedded on the inner wall of one side of the driving groove, the output shaft of the second stepping motor is fixedly connected to the driving gear, and the outer side surface of the arc plate is fixedly connected to teeth meshing with the driving gear.

[0014] As a further solution of the present invention: fill lights are embedded in the top inner wall and the bottom inner wall of the second telescopic cover plate.

[0015] As a further solution of the present invention: the dust-proof loading and unloading mechanism specifically includes: a loading conveyor belt movably connected to the lower part of the interior of the chamber, a unloading conveyor belt movably connected below the loading conveyor belt, and the top surface of the loading conveyor belt is provided with a plurality of staggered discharge troughs and feeding ports, the top surface of the unloading conveyor belt is provided with a plurality of evenly distributed receiving troughs, and buckle grooves are symmetrically provided on both sides of the receiving trough.

[0016] The present application also discloses a degassing method for a liquid crystal display screen, which is applied to a degassing machine for a liquid crystal display screen, and comprises the following steps:

[0017] The LCD screen to be degassed is sent into the chamber through the dust-proof loading and unloading mechanism;

[0018] The negative pressure adsorption plate is extended and retracted by the first cylinder to absorb the LCD screen, and then rotated clockwise by the first stepper motor;

[0019] When the LCD screen rotates 90 degrees clockwise, the screen cleaning component cleans the LCD screen;

[0020] When the LCD screen rotates 180 degrees clockwise, the pressure component applies pressure to the LCD screen to degas;

[0021] When the LCD screen rotates 270 degrees clockwise, the screen inspection component inspects the degassing effect of the LCD screen;

[0022] When the LCD screen rotates 360 degrees clockwise, the dust-proof loading and unloading mechanism takes over the debubbled LCD screen and sends it out of the chamber.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] 1. The present application adopts a dust-proof loading and unloading mechanism to adopt a reverse-upward conveying method when loading and unloading the LCD screen, thereby preventing dust in the air from falling on the front of the LCD screen. At the same time, a screen cleaning component is provided to further improve the cleanliness of the front of the LCD screen, thereby preventing dust from affecting the final degassing effect.

[0025] 2. The pressure component of the present application is provided with a pre-pressure plate mechanism, which can spread the pressure from the center of the display screen to the surrounding areas during pressure degassing, so that the entire pressure degassing process is gradual, thereby slowly squeezing out the bubbles in the middle of the display screen and improving the degassing effect.

[0026] 3. The screen cleaning component set up in this application can create a relatively independent cleaning space to avoid secondary pollution caused by the dust cleaned. At the same time, the screen cleaning component adopts a combination of blowing cleaning and sticky dust sticker cleaning to achieve efficient dust removal.

[0027] 4. The screen inspection component set up in this application can not only create a relatively independent inspection space to prevent external interference, but also enable multi-angle observation of the debubbled LCD screen to improve inspection accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a structural schematic diagram of a degassing machine for a liquid crystal display screen;

[0029] Figure 2 This is a combined view of the support plate and the hydraulic cylinder in the degassing machine for the LCD screen;

[0030] Figure 3 It is a structural schematic diagram of a screen cleaning component in a degassing machine for a liquid crystal display screen;

[0031] Figure 4 It is a structural schematic diagram of the screen inspection component in the degassing machine of the liquid crystal display screen;

[0032] Figure 5 It is a schematic diagram of the structure of the push plate in the degassing machine of the liquid crystal display screen;

[0033] Figure 6 It is a structural schematic diagram of a pre-pressing plate mechanism in a degassing machine for a liquid crystal display screen;

[0034] Figure 7 It is a schematic diagram of the structure of the feeding conveyor belt in the degassing machine of the liquid crystal display screen;

[0035] Figure 8 This is a schematic diagram of the structure of the unloading conveyor belt in the degassing machine for LCD screens.

[0036] In the figure: 1, machine body; 2, chamber; 3, rotating shaft; 4, first stepper motor; 5, first cylinder; 6, negative pressure adsorption plate; 7, liquid crystal display screen; 8, unloading conveyor belt; 9, loading conveyor belt; 10, support rod; 11, support plate; 12, hydraulic cylinder; 13, lifting plate; 14, center pressure plate; 15, first rectangular enclosure; 16, second rectangular enclosure; 17, third rectangular enclosure; 18, limit groove; 19, shaft hole; 20, anti-slip sheet; 21, spring column; 22, shaft rod; 23, first rectangular support plate; 24, first telescopic cover plate; 25, first notch; 26, first linear guide rail; 27, first linear Motor; 28. Blowing head; 29. ​​Cleaning seat; 30. Second cylinder; 31. Push plate; 32. Circular groove; 33. Reel; 34. Rotating motor; 35. Sticky sticker; 36. Slot; 37. Second rectangular support plate; 38. Second telescopic cover plate; 39. Second notch; 40. Fill light; 41. Second linear guide; 42. Second linear motor; 43. Arc plate; 44. Teeth; 45. Adjusting seat; 46. Arc groove; 47. Driving groove; 48. Driving gear; 49. Second stepping motor; 50. Camera; 51. Discharging trough; 52. Feeding port; 53. Receiving trough; 54. Buckle groove; 55. Optical axis. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0038] As mentioned in the background technology of this application, it has been found through research that the display screens on existing production lines face up when undergoing degassing, which makes it easy for the display screens to be contaminated by dust in the air when they arrive at the degassing station, affecting the final degassing effect, and thus presenting certain defects.

[0039] In order to solve the above-mentioned defects, the present application discloses a degassing machine and a degassing method for a liquid crystal display screen. When loading and unloading the liquid crystal display screen 7, a reverse-side-up conveying method is adopted to prevent dust in the air from falling on the front of the liquid crystal display screen 7. At the same time, a screen cleaning component is set up to further improve the cleanliness of the front of the liquid crystal display screen 7, thereby preventing dust from affecting the final degassing effect.

[0040] The following will describe in detail how the solution of the present application solves the above technical problems in conjunction with the accompanying drawings.

[0041] See also Figures 1 to 8 In the embodiment of the present invention, the degassing machine for the liquid crystal display screen includes a body 1, a chamber 2 is provided inside the body 1, and a rotating shaft 3 is rotatably connected to the middle position of the chamber 2, two groups of symmetrical first cylinders 5 are fixedly connected to the outer side of the rotating shaft 3, and the number of each group of first cylinders 5 is at least two, and the output shaft of each group of first cylinders 5 is commonly fixedly connected to a negative pressure adsorption plate 6, a first stepper motor 4 is embedded on the inner wall of one side of the chamber 2, and the output shaft of the first stepper motor 4 is fixedly connected to the rotating shaft 3; a screen cleaning component is provided on the inner wall of the chamber 2 on one side of the rotating shaft 3, and a screen inspection component is provided on the inner wall of the chamber 2 on the other side of the rotating shaft 3, a dustproof loading and unloading mechanism is provided at the bottom of the chamber 2, and a pressure component is fixedly connected to the top of the body 1. The present application adopts a reverse-upward conveying method when loading and unloading the liquid crystal display screen 7 through the dustproof loading and unloading mechanism, so as to prevent dust in the air from falling on the front of the liquid crystal display screen 7, and at the same time, the cleanliness of the front of the liquid crystal display screen 7 is further improved by the screen cleaning component, thereby preventing dust from affecting the final degassing effect.

[0042] In this embodiment, the pressure component specifically includes: four support rods 10 distributed in a rectangular shape and fixed on the top surface of the body 1, the tops of the four support rods 10 are commonly fixedly connected to a support plate 11, and the top surface of the support plate 11 is fixedly connected to a hydraulic cylinder 12, the bottom output shaft of the hydraulic cylinder 12 penetrates the support plate 11 and is fixedly connected to a lifting plate 13, and the bottom end surface of the lifting plate 13 is provided with a pre-pressing plate mechanism, both sides of the top surface of the lifting plate 13 are fixedly connected with an optical axis 55, and the top of the optical axis 55 penetrates the support plate 11, and the top surface of the chamber 2 is provided with a working opening for the lifting plate 13 to pass through. The pressure component can quickly and stably lift and lower the pre-pressing plate mechanism, thereby completing the degassing work.

[0043] In this embodiment, the pre-pressing plate mechanism specifically includes: a central pressing plate 14 arranged at the middle position below the lifting plate 13, the central pressing plate 14 is externally movably connected with a first rectangular enclosure 15 matching the central pressing plate 14, and the first rectangular enclosure 15 is externally movably connected with a second rectangular enclosure 16 matching the first rectangular enclosure 15, and the bottom end surface of the lifting plate 13 outside the second rectangular enclosure 16 is fixedly connected with a third rectangular enclosure 17 matching the second rectangular enclosure 16, and elastic members are arranged between the second rectangular enclosure 16, the first rectangular enclosure 15 and the central pressing plate 14 and the lifting plate 13, and a limiting groove 18 matching the second rectangular enclosure 16 is opened on the bottom end surface of the lifting plate 13. The pressure component of the present application can spread pressure from the center of the display screen to the surrounding areas during pressure degassing through the pre-pressing plate mechanism, so that the entire pressure degassing process is gradual, thereby slowly squeezing out the bubbles in the middle of the display screen, and improving the degassing effect.

[0044] In this embodiment, the elastic member specifically includes: a plurality of shafts 22 evenly fixed at the edge of the second rectangular enclosure 16, the first rectangular enclosure 15 and the top end of the central pressure plate 14, a shaft hole 19 is opened at the position corresponding to the shaft 22 on the bottom end of the lifting plate 13, and the top end of the shaft 22 passes through the inside of the shaft hole 19 and is fixedly connected with an anti-drop sheet 20, and a spring column 21 is fixedly connected between the top end surface of the anti-drop sheet 20 and the top wall of the shaft hole 19. The setting of the elastic member can drive the pre-pressed pressure plate mechanism to return to its original state after the external force disappears.

[0045] In this embodiment, the screen cleaning assembly specifically includes: a first rectangular support plate 23 fixed on the inner wall of one side of the chamber 2, the first rectangular support plate 23 is externally movably connected to a first telescopic cover plate 24, and a first notch 25 is provided on one side of the first telescopic cover plate 24, the top end surface and the bottom end surface of the first rectangular support plate 23 are both fixedly connected to a first linear guide rail 26, and the outer side surface of the first linear guide rail 26 is movably connected to a first linear motor 27, the first linear motor 27 is fixedly connected to the inner side surface of the first telescopic cover plate 24, the first rectangular support plate 23 is internally fixedly connected to a cleaning seat 29, and the first rectangular support plate 2 The top and bottom of the inner wall of the cleaning seat 29 are symmetrically fixedly connected with a blower head 28, a second cylinder 30 is embedded in the middle position of the cleaning seat 29, and the output shaft of the second cylinder 30 passes through the cleaning seat 29 and is fixedly connected with a push plate 31, a side of the push plate 31 is provided with a slot 36, and the cleaning seat 29 on both sides of the second cylinder 30 is provided with a circular groove 32, and a reel 33 is rotatably connected inside the circular groove 32, a rotating motor 34 is embedded on the inner wall of one side of the circular groove 32, and the output shaft of the rotating motor 34 is fixedly connected with the corresponding reel 33, a sticky dust sticker 35 is wound between the two reels 33, and the sticky dust sticker 35 passes through the slot 36. The screen cleaning assembly can further improve the cleanliness of the front of the liquid crystal display screen 7, thereby preventing dust from affecting the final degassing effect. The screen cleaning assembly can create a relatively independent cleaning space to avoid secondary pollution caused by the cleaned dust. At the same time, the screen cleaning assembly uses a combination of blowing cleaning and sticky dust sticker 35 cleaning to achieve efficient dust removal.

[0046] In this embodiment, the screen inspection component specifically includes: a second rectangular support plate 37 fixed on the inner wall of the other side of the chamber 2, the second rectangular support plate 37 is externally movably connected to a second telescopic cover plate 38, and a second notch 39 is provided on one side of the second telescopic cover plate 38, the top end surface and the bottom end surface of the second rectangular support plate 37 are both fixedly connected to a second linear guide rail 41, and the outer side surface of the second linear guide rail 41 is movably connected to a second linear motor 42, the second linear motor 42 is fixedly connected to the inner side surface of the second telescopic cover plate 38, and the inner side surface of the second rectangular support plate 37 is fixedly connected to the There are two parallel arc plates 43, the two arc plates 43 are externally sleeved with an adjustment seat 45, and a camera 50 is fixedly connected to one side of the adjustment seat 45, and an arc groove 46 is provided inside the adjustment seat 45 for the arc plate 43 to pass through, and a driving groove 47 is provided on one side of the arc groove 46, and a driving gear 48 is rotatably connected inside the driving groove 47, and a second stepper motor 49 is embedded on the inner wall of one side of the driving groove 47, and the output shaft of the second stepper motor 49 is fixedly connected to the driving gear 48, and the outer side of the arc plate 43 is fixedly connected to the teeth 44 meshing with the driving gear 48. The screen inspection component can not only create a relatively independent inspection space to prevent external interference, but also observe the debubbled LCD screen 7 from multiple angles to improve the inspection accuracy.

[0047] In this embodiment, the top inner wall and the bottom inner wall of the second telescopic cover plate 38 are both embedded with fill-in lights 40. The fill-in lights 40 can fill in light for the liquid crystal display screen 7 when it is inspected.

[0048] In this embodiment, the dustproof loading and unloading mechanism specifically includes: a loading conveyor belt 9 movably connected to the lower part of the chamber 2, a unloading conveyor belt 8 movably connected to the lower part of the loading conveyor belt 9, and a plurality of staggered discharge grooves 51 and feeding ports 52 are provided on the top surface of the loading conveyor belt 9, and a plurality of evenly distributed receiving grooves 53 are provided on the top surface of the unloading conveyor belt 8, and buckle grooves 54 are symmetrically provided on both sides of the receiving grooves 53 to facilitate the removal of the liquid crystal display screen 7. The dustproof loading and unloading mechanism adopts a reverse-upward conveying method when loading and unloading the liquid crystal display screen 7 to prevent dust in the air from falling on the front of the liquid crystal display screen 7.

[0049] The present application also discloses a degassing method for a liquid crystal display screen, which is applied to a degassing machine for a liquid crystal display screen, comprising the following steps: a liquid crystal display screen 7 to be degassed is sent into a chamber 2 through a dustproof loading and unloading mechanism; a negative pressure adsorption plate 6 absorbs the liquid crystal display screen 7 through the extension and contraction of a first cylinder 5, and then rotates clockwise through a first stepper motor 4; when the liquid crystal display screen 7 rotates ninety degrees clockwise, a screen cleaning component cleans the liquid crystal display screen 7; when the liquid crystal display screen 7 rotates one hundred and eighty degrees clockwise, a pressure component applies pressure to the liquid crystal display screen 7 for degassing; when the liquid crystal display screen 7 rotates two hundred and seventy degrees clockwise, a screen inspection component inspects the degassing effect of the liquid crystal display screen 7; when the liquid crystal display screen 7 rotates three hundred and sixty degrees clockwise, the dustproof loading and unloading mechanism takes over the degassed liquid crystal display screen 7 and sends it out of the chamber 2.

[0050] The working principle of the present invention is as follows: when in use, first, the liquid crystal display screen 7 to be degassed is sequentially placed in the discharge trough 51 of the feeding conveyor 9, and then the feeding conveyor 9 delivers the liquid crystal display screen 7 into the chamber 2. When the liquid crystal display screen 7 reaches directly below the negative pressure adsorption plate 6, the first cylinder 5 below runs to extend the output shaft, and the negative pressure adsorption plate 6 below moves downward to contact the liquid crystal display screen 7, and the negative pressure adsorption plate 6 grasps the liquid crystal display screen 7 by negative pressure adsorption. Then, the first cylinder 5 below retracts the output shaft. Then, the first stepper motor 4 runs to drive the liquid crystal display screen 7 to rotate ninety degrees clockwise, and at this time, the screen cleaning component cleans the liquid crystal display screen 7. Then, the first stepper motor 4 runs again to drive the liquid crystal display screen 7 to rotate ninety degrees clockwise (that is, the liquid crystal display screen 7 rotates one hundred and eighty degrees clockwise from the initial position), and the pressure component at this time applies pressure to the liquid crystal display screen 7 for degassed; at the same time, the negative pressure adsorption plate 6 originally at the top rotates to the bottom, and the feeding conveyor 9 moves forward to deliver the next liquid crystal display screen 7 to the bottom of the negative pressure adsorption plate 6 for it to grab. Then, the first stepper motor 4 runs again to drive the LCD screen 7 to rotate ninety degrees clockwise (i.e., the LCD screen 7 rotates two hundred and seventy degrees clockwise from the initial position), and the screen inspection component inspects the LCD screen 7 at this time. Then, the first stepper motor 4 runs again to drive the LCD screen 7 to rotate ninety degrees clockwise (i.e., the LCD screen 7 rotates three hundred and sixty degrees clockwise from the initial position), and the LCD screen 7 is now facing down again and returns to the initial position before the rotation. Then, the loading conveyor belt 9 moves forward to align a feeding port 52 with the LCD screen 7 up and down, and the corresponding first cylinder 5 runs to extend the output shaft to pass the LCD screen 7 through the loading conveyor belt 9 along the feeding port 52, and finally sends it to a receiving slot 53 of the unloading conveyor belt 8. Each time the unloading conveyor belt 8 receives a LCD screen 7, it moves forward a certain distance so that the next receiving slot 53 reaches the receiving position. It should be noted that the forward direction and distance of the unloading conveyor belt 8 and the loading conveyor belt 9 are controlled by a pre-set program.

[0051] The specific process of the screen cleaning component cleaning the LCD screen 7 is as follows: the first linear motor 27 runs and moves forward along the first linear guide rail 26. During the process, the first telescopic cover plate 24 extends outward along the first rectangular support plate 23 until the LCD screen 7 passes through the first notch 25. Then, the upper and lower blow heads 28 blow air to the front of the LCD screen 7 to remove dust. After a period of time, the blow heads 28 stop blowing, and the second cylinder 30 runs to extend the output shaft to drive the push plate 31 to move outward. During the process, the rotating motor 34 runs to drive the reel 33 to rotate and release the sticky sticker 35, and the push plate 31 is pushed out. After the sticky sticker 35 on the LCD screen 7 contacts the front side, the sticky sticker 35 sticks off the dust attached to the front side of the LCD screen 7. Then, the second cylinder 30 retracts the output shaft, and the rotating motor 34 drives the reel 33 to rotate and reel in the sticky sticker 35. The sticky sticker 35 always remains in a tight state. After each dust removal work of the sticky sticker 35 is completed, in order to ensure that the dust removal effect does not decrease, the sticky sticker 35 will be adjusted, that is, one rotating motor 34 releases the sticky sticker 35, and the other rotating motor 34 reels the sticky sticker 35, so that the area on the sticky sticker 35 that was originally covered with dust is moved away. In addition, the card slot 36 can limit the direction of the sticky sticker 35 to prevent the sticky sticker 35 from deviating.

[0052] The specific process of the pressure component applying pressure to the LCD screen 7 for degassing is as follows: the hydraulic cylinder 12 runs to extend the output shaft, driving the lifting plate 13 to move downward and enter the chamber 2 from the working port. During the process, the optical axis 55 and the support plate 11 are relatively displaced to improve stability. Then, the pre-pressing plate mechanism on the lifting plate 13 contacts the front of the LCD screen 7 for degassing. The central pressing plate 14 on the pre-pressing plate mechanism first contacts the front of the LCD screen 7 for degassing. During the process, the central pressing plate 14 is squeezed and continuously retracted into the first rectangular enclosure 15, and the bubbles in the middle of the LCD screen 7 are slowly squeezed to the surroundings by the central pressing plate 14, and the central pressing plate 14 is against the top wall of the limiting groove 18. After that, it cannot move further. At the same time, the first rectangular enclosure 15 contacts the LCD screen 7 and retracts into the second rectangular enclosure 16. The first rectangular enclosure 15 continues to slowly squeeze the bubbles to the surroundings. After the first rectangular enclosure 15 abuts against the top wall of the limiting groove 18, the second rectangular enclosure 16 contacts the LCD screen 7 and retracts into the third rectangular enclosure 17. After the second rectangular enclosure 16 abuts against the top wall of the limiting groove 18, the third rectangular enclosure 17 contacts the LCD screen 7 for extrusion. The entire extrusion degassing spreads pressure from the center of the LCD screen 7 to the surroundings, so that the entire pressure degassing process is gradual, thereby slowly squeezing out the bubbles in the middle of the LCD screen 7 and improving the degassing effect. In addition, when the second rectangular enclosure 16, the first rectangular enclosure 15 and the central pressure plate 14 move upward, the shaft rod 22 of the corresponding elastic member retracts into the shaft hole 19, and the spring column 21 on the anti-slip sheet 20 is compressed.

[0053] The specific process of the screen inspection component inspecting the LCD screen 7 is as follows: the second linear motor 42 runs and moves forward along the second linear guide rail 41. During the process, the second telescopic cover plate 38 extends outward along the second rectangular support plate 37 until the LCD screen 7 passes through the second notch 39. Then, the fill light 40 lights up to fill in the light for the LCD screen 7. The camera 50 collects the image of the LCD screen 7 after degassing, and then sends the collected image to the background control terminal for image recognition to inspect the degassing effect of the LCD screen 7. It should be noted that image recognition is an existing well-known conventional technology. More specifically, image recognition is an important field of artificial intelligence. Patterns in images are identified through algorithms and matched with known patterns. This process usually includes steps such as image acquisition, preprocessing, feature extraction, and classification decision-making. Each image has its own unique features, such as color, texture, shape, etc. Image recognition technology is based on these features for identification and classification. In addition, the screen inspection component can also perform multi-angle image acquisition on the LCD screen 7. Specifically, the second stepper motor 49 drives the driving gear 48 to rotate. Since the driving gear 48 is meshed with the teeth 44 on the arc plate 43, as the driving gear 48 rotates, the adjustment seat 45 moves along the arc plate 43, and then adjusts the shooting angle of the camera 50. The debubbled LCD screen 7 is observed from multiple angles to improve the inspection accuracy.

[0054] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

[0055] What is described above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A degassing machine for a liquid crystal display, characterized in that: The invention comprises a machine body (1), wherein a chamber (2) is provided inside the machine body (1), and a rotating shaft (3) is rotatably connected to the middle position inside the chamber (2), and two groups of symmetrical first cylinders (5) are fixedly connected to the outer side surface of the rotating shaft (3), and the number of the first cylinders (5) in each group is at least two, and the output shafts of each group of the first cylinders (5) are fixedly connected to a negative pressure adsorption plate (6), and a first stepper motor (4) is embedded on the inner wall of one side of the chamber (2), and the output shaft of the first stepper motor (4) is fixedly connected to the rotating shaft (3); A screen cleaning component is provided on the inner wall of the chamber (2) on one side of the rotating shaft (3), and a screen inspection component is provided on the inner wall of the chamber (2) on the other side of the rotating shaft (3). A dustproof loading and unloading mechanism is provided at the lower part of the chamber (2), and a pressure component is fixedly connected to the top of the machine body (1); The pressure-applying assembly specifically comprises: four support rods (10) distributed in a rectangular shape and fixed on the top surface of the body (1); the tops of the four support rods (10) are commonly fixedly connected to a support plate (11); the top surface of the support plate (11) is fixedly connected to a hydraulic cylinder (12); the bottom output shaft of the hydraulic cylinder (12) passes through the support plate (11) and is fixedly connected to a lifting plate (13); the bottom end surface of the lifting plate (13) is provided with a pre-pressing plate mechanism; both sides of the top surface of the lifting plate (13) are fixedly connected to an optical axis (55); the top end of the optical axis (55) passes through the support plate (11); and the top surface of the chamber (2) is provided with a working opening for the lifting plate (13) to pass through; The pre-pressing plate mechanism specifically comprises: a central pressing plate (14) arranged at a middle position below the lifting plate (13); the central pressing plate (14) is externally movably connected to a first rectangular enclosure (15) matching the central pressing plate (14); the first rectangular enclosure (15) is externally movably connected to a second rectangular enclosure (16) matching the first rectangular enclosure (15); a third rectangular enclosure (17) matching the second rectangular enclosure (16) is fixedly connected to the bottom end surface of the lifting plate (13) outside the second rectangular enclosure (16); elastic members are provided between the second rectangular enclosure (16), the first rectangular enclosure (15) and the central pressing plate (14) and the lifting plate (13); and a limiting groove (18) matching the second rectangular enclosure (16) is provided on the bottom end surface of the lifting plate (13).

2. The degassing machine for a liquid crystal display according to claim 1, characterized in that: The elastic member specifically comprises: a plurality of shaft rods (22) uniformly fixed on the edge positions of the top surfaces of the second rectangular enclosure (16), the first rectangular enclosure (15) and the central pressure plate (14); a shaft hole (19) is provided at a position of the bottom end surface of the lifting plate (13) corresponding to the shaft rod (22); the top end of the shaft rod (22) passes through the inside of the shaft hole (19) and is fixedly connected to an anti-slip sheet (20); a spring column (21) is fixedly connected between the top end surface of the anti-slip sheet (20) and the top wall of the shaft hole (19).

3. The degassing machine for a liquid crystal display according to claim 1, characterized in that: The screen cleaning assembly specifically comprises: a first rectangular support plate (23) fixed on an inner wall of one side of the chamber (2); the first rectangular support plate (23) is externally movably connected to a first telescopic cover plate (24); a first notch (25) is provided on a side surface of the first telescopic cover plate (24); the top end surface and the bottom end surface of the first rectangular support plate (23) are both fixedly connected to a first linear guide rail (26); the outer side surface of the first linear guide rail (26) is movably connected to a first linear motor (27); the first linear motor (27) is fixedly connected to the inner side surface of the first telescopic cover plate (24); the first rectangular support plate (23) is internally fixedly connected to a cleaning seat (29); the top end surface of the inner wall of the first rectangular support plate (23) is connected to the inner wall A blower head (28) is symmetrically fixedly connected to the bottom end, a second cylinder (30) is embedded in the middle position of the cleaning seat (29), and the output shaft of the second cylinder (30) passes through the cleaning seat (29) and is fixedly connected to a push plate (31), a side surface of the push plate (31) is provided with a slot (36), circular grooves (32) are provided inside the cleaning seat (29) on both sides of the second cylinder (30), and a reel (33) is rotatably connected inside the circular groove (32), a rotating motor (34) is embedded on the inner wall of one side of the circular groove (32), and the output shaft of the rotating motor (34) is fixedly connected to the corresponding reel (33), a sticky sticker (35) is wound between the two reels (33), and the sticky sticker (35) passes through the slot (36).

4. The degassing machine for a liquid crystal display according to claim 1, characterized in that: The screen inspection assembly specifically comprises: a second rectangular support plate (37) fixed to the inner wall of the other side of the chamber (2); the second rectangular support plate (37) is externally movably connected to a second telescopic cover plate (38); a second notch (39) is provided on one side of the second telescopic cover plate (38); the top end surface and the bottom end surface of the second rectangular support plate (37) are both fixedly connected to a second linear guide rail (41); the outer side surface of the second linear guide rail (41) is movably connected to a second linear motor (42); the second linear motor (42) is fixedly connected to the inner side surface of the second telescopic cover plate (38); the second rectangular support plate (37) is internally fixedly connected to two parallel arc plates ( 43), the two arc-shaped plates (43) are externally sleeved with an adjustment seat (45), and a camera (50) is fixedly connected to one side of the adjustment seat (45), an arc-shaped groove (46) is provided inside the adjustment seat (45) for the arc-shaped plate (43) to pass through, and a driving groove (47) is provided on one side of the arc-shaped groove (46), a driving gear (48) is rotatably connected inside the driving groove (47), and a second stepping motor (49) is embedded on the inner wall of one side of the driving groove (47), the output shaft of the second stepping motor (49) is fixedly connected to the driving gear (48), and the outer side surface of the arc-shaped plate (43) is fixedly connected to teeth (44) meshing with the driving gear (48).

5. The degassing machine for a liquid crystal display according to claim 4, characterized in that: Filling lights (40) are embedded in the top inner wall and the bottom inner wall of the second telescopic cover plate (38).

6. The degassing machine for a liquid crystal display according to claim 1, characterized in that: The dustproof loading and unloading mechanism specifically comprises: a loading conveyor belt (9) movably connected to the lower part of the chamber (2); a unloading conveyor belt (8) movably connected to the lower part of the loading conveyor belt (9); a plurality of staggered material discharge grooves (51) and material feeding ports (52) are provided on the top surface of the loading conveyor belt (9); a plurality of evenly distributed material receiving grooves (53) are provided on the top surface of the unloading conveyor belt (8); and buckle grooves (54) are symmetrically provided on both sides of the material receiving grooves (53).

7. A method for degassing a liquid crystal display screen, using the degassing machine for a liquid crystal display screen as claimed in any one of claims 1 to 6, characterized in that: The following steps are involved: The liquid crystal display screen (7) to be degassed is sent into the chamber (2) through a dustproof loading and unloading mechanism; The negative pressure adsorption plate (6) is extended and retracted through the first cylinder (5) to absorb the liquid crystal display screen (7), and then rotated clockwise through the first stepper motor (4); When the liquid crystal display screen (7) rotates ninety degrees clockwise, the screen cleaning component cleans the liquid crystal display screen (7); When the liquid crystal display screen (7) rotates 180 degrees clockwise, the pressure-applying component applies pressure to the liquid crystal display screen (7) to remove bubbles; When the liquid crystal display screen (7) rotates 270 degrees clockwise, the screen inspection component inspects the degassing effect of the liquid crystal display screen (7); When the liquid crystal display screen (7) rotates 360 degrees clockwise, the dustproof loading and unloading mechanism receives the degassed liquid crystal display screen (7) and sends it out of the chamber (2).

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