Automatic laminating equipment for liquid crystal display screen

Abstract

The invention belongs to the technical field of display screen processing, and particularly relates to liquid crystal display screen automatic pressing equipment which comprises a bottom plate, an equipment body is fixed to the top end of the bottom plate through a connecting plate, a heating pressing plate is arranged at the bottom end of the equipment body, a discharging plate is arranged above the bottom plate, and a threaded sleeve is fixed to one side of the bottom end of the discharging plate. A threaded rod is rotationally connected to one side of the bottom end in the bottom plate, the threaded rod is in threaded connection with the threaded sleeve, a glue brushing roller is arranged between the discharging plate and the discharging frame, and a glue outlet pipe is arranged above the glue brushing roller. Glue is sprayed out through the glue outlet pipe, meanwhile, the glue is smeared on the surface of the backlight plate through the glue brushing roller, uniform glue smearing can be achieved, meanwhile, the driving gear is driven through the teeth to enable the glue brushing roller to rotate, glue smearing on the backlight plate in the process that the discharging plate conveys the backlight plate can be achieved, and time wasted by independent glue smearing is shortened; and moreover, the exposure time of the glue in the air can be shortened, and the possibility that the glue adheres to objects such as fibers can be greatly reduced.

Description

Technical Field

[0001] The invention belongs to the technical field of display screen processing, in particular to an automatic pressing device for a liquid crystal display screen. Background Art

[0002] The liquid crystal display is a display device that can display corresponding content when a display signal is transmitted to it after power is supplied. During the processing of the liquid crystal display, the liquid crystal screen and the backlight panel need to be pressed together to form a complete liquid crystal display. This is generally done through automatic pressing equipment.

[0003] A patent application with the existing publication number CN107632424A discloses a semi-automatic COF pressing device for a liquid crystal display screen, including a vacuum adsorption mechanism and a pressing mechanism; the center of gravity of the vacuum adsorption mechanism is close to one side of the pressing mechanism to ensure the flatness of a large-size liquid crystal display screen, and the pressing mechanism includes a printed circuit board pressing module and a flexible circuit board pressing module.

[0004] During use of the above-mentioned technical solution, the LCD screen to be processed needs to be coated with glue in advance. The gluing process takes a lot of time, and the LCD screen needs to be transferred to the position of the laminating equipment after gluing. During this process, the glue is always exposed to the air. The glue easily adheres to objects such as fibers in the air, resulting in the presence of fibers and other objects in the finished LCD screen, affecting the appearance.

[0005] To this end, the present invention provides an automatic pressing device for a liquid crystal display screen. Summary of the invention

[0006] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0007] The technical solution adopted by the present invention to solve its technical problems is: the present invention describes an automatic pressing device for a liquid crystal display screen, comprising a base plate, the top of the base plate is fixed with a device body by a connecting plate, the bottom end of the device body is provided with a heating pressing plate, the bottom end of the heating pressing plate is provided with a material discharge rack, a material discharge plate is provided above the base plate, a threaded sleeve is fixed on one side of the bottom end of the material discharge plate, a sliding sleeve is fixed on the side symmetrical to the bottom end of the material discharge plate and the threaded sleeve, a threaded rod is rotatably connected to one side of the bottom end of the base plate, a motor is installed at one end of the base plate away from the device body, the end of the motor is fixedly connected to one end of the threaded rod, the threaded rod is threadedly connected to the threaded sleeve, a sliding rod is fixedly connected to the side symmetrical to the threaded rod at the bottom end of the base plate and the threaded rod, the sliding sleeve of the material discharge plate is slidably connected to the outside of the sliding rod, a rubber brush roller is provided between the material discharge plate and the material discharge rack, and a rubber outlet hose is provided above the rubber brush roller.

[0008] Preferably, a glue storage box is provided on one side of the glue outlet pipe, and the glue storage box is fixed on the top of the bottom plate. A liquid pump is installed on the top of the glue storage box. The liquid pump is connected to the glue outlet pipe through a connecting pipe, and the liquid pump is connected to the interior of the glue storage box. A glue brushing plate is fixed to the bottom end of the glue outlet pipe, and a plurality of glue outlet holes are provided on the surface of the glue brushing plate.

[0009] Preferably, teeth are fixed on both sides of the bottom end of the discharge plate, support columns are provided on both sides of the rubber brush roller, the bottom ends of the support columns are fixedly connected to the bottom plate, the support columns are internally rotatably connected to a rotating frame, third transmission gears are fixed on both ends of the rubber brush roller, the third transmission gear is rotatably connected to the rotating frame, a side of the rotating frame close to the third transmission gear is rotatably connected to a fourth transmission gear, one side of the top end of the fourth transmission gear is meshed with the bottom end of the third transmission gear, an output gear is meshed below the fourth transmission gear, the output gear is fixedly connected to a driving gear through a rotating shaft, the rotating shaft is rotatably connected to the top end of the support column through a connecting block, and the driving gear can be meshed with the teeth.

[0010] Preferably, a return spring is fixed to the outside of the rotating shaft portion of the rotating frame, the other end of the return spring is fixedly connected to the support column, and a push rod is fixed to one end of the rotating frame away from the third transmission gear.

[0011] Preferably, an elastic sheet is fixed to the top of the push rod, sliding grooves are provided on both sides of the bottom end of the discharge plate, a storage groove is provided between the sliding groove and the teeth, a sliding hole is provided between the sliding groove and the storage groove, a rack is slidingly connected inside the storage groove, a push block is fixed to the side of the rack close to the sliding groove, the push block is slidingly connected inside the sliding groove and the sliding hole, two limit rods are fixed to the end of the support column away from the push rod, and the limit rods are arranged on both sides of the rotating frame.

[0012] Preferably, a rotating rod is provided on one side of the rubber brush roller close to the rubber outlet pipe, circular cutters are fixed on both sides of the outside of the rotating rod, cleaning cotton is provided between the circular cutters, and first transmission gears are fixed at both ends of the rotating rod, the first transmission gear is rotatably connected to the rotating frame, and the bottom end of the first transmission gear is meshingly connected to the fourth transmission gear.

[0013] Preferably, a collecting box is arranged above the circular cutter, a material guide tube is fixed to one end of the collecting box close to the support column, a feeding port is opened at the bottom end of the collecting box close to the circular cutter, a material guide plate is fixed below the feeding port, and the collecting box is fixed to the top of the rotating frame through a supporting frame.

[0014] Preferably, a rotating block is rotatably connected inside the collection box, a material dividing cutter is arranged outside the rotating block, a second transmission gear is fixed to the end of the rotating block away from the material guide tube, a transmission rod is rotatably connected to one side of the collection box, the second transmission gear is meshedly connected to a gear at one end of the transmission rod, and the gear at the other end of the transmission rod is meshedly connected to the first transmission gear.

[0015] Preferably, a telescopic cavity is opened inside the rotating block, the bottom end of the dividing cutter is inserted into the telescopic cavity, a first spring is fixed to the bottom end of the dividing cutter, and the bottom end of the first spring is fixedly connected to the inner wall of the telescopic cavity.

[0016] Preferably, limiting plates are fixed on both sides of the top of the discharge rack and the end away from the discharge plate, a support plate is arranged below the limiting plate, a support shaft is fixed to the end of the support plate close to the limiting plate, the support shaft is rotatably connected to the inside of the discharge rack, coil springs are fixed to the outside of both ends of the support shaft, the outer side of the coil spring is fixedly connected to the discharge rack, a pull rope is fixed to the bottom of the support plate through a connecting column, a lifting bar is rotatably connected to the inside of the limiting plate, and the end of the lifting bar away from the support plate is fixedly connected to the pull rope.

[0017] The beneficial effects of the present invention are as follows:

[0018] 1. The automatic pressing device for a liquid crystal display screen described in the present invention sprays glue through a glue outlet pipe, and at the same time, applies the glue to the surface of the backlight panel through a glue brush roller, so that the glue can be evenly applied. At the same time, the active gear is driven by the teeth to rotate the glue brush roller, so that the backlight panel can be applied with glue during the process of being transported by the unloading plate, thereby reducing the time wasted on applying glue separately, and reducing the time that the glue is exposed to the air, which can greatly reduce the possibility of the glue adhering to objects such as fibers.

[0019] 2. The automatic pressing device for a liquid crystal display screen described in the present invention can cut off the overflowed glue through a circular cutter, and guide the cut solidified glue into the interior of a collection box through a guide plate, so as to clean the overflowed glue on both sides of the backlight panel, and the cleaning cotton can clean the surface of the liquid crystal display screen. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention will be further described below in conjunction with the accompanying drawings.

[0021] Figure 1 is a stereogram of the present invention;

[0022] Figure 2 It is a schematic diagram of the structure of the unloading plate in the present invention;

[0023] Figure 3 yes Figure 2 A partial enlarged view of the middle part;

[0024] Figure 4 It is a schematic diagram of the structure of the rubber brush roller in the present invention;

[0025] Figure 5 It is a schematic diagram of the support column structure in the present invention;

[0026] Figure 6 It is a schematic diagram of the internal structure of the support column in the present invention;

[0027] Figure 7 It is a schematic diagram of the structure of the rubber outlet pipe in the present invention;

[0028] Figure 8 It is a schematic diagram of the internal structure of the collection box in the present invention;

[0029] Fig. 9 It is a schematic diagram of the internal structure of the rotating block in the present invention;

[0030] Fig.10 It is a schematic diagram of the structure of the material unloading rack in the present invention;

[0031] Fig.11 It is a schematic diagram of the support plate structure in the present invention.

[0032] In the figure: 1, bottom plate; 11, motor; 12, threaded rod; 2, equipment body; 21, heating and pressing plate; 22, unloading rack; 221, limit plate; 222, support plate; 223, support shaft; 224, coil spring; 225, pull rope; 226, lifting bar; 3, unloading plate; 31, threaded sleeve; 32, teeth; 33, slide; 331, storage slot; 34, rack; 341, push block; 4, rubber brush roller; 41, rubber outlet pipe; 411, liquid pump; 412, rubber storage box; 413, rubber brush plate; 42, support column; 421, Limit rod; 422, rotating frame; 423, push rod; 424, elastic sheet; 425, reset spring; 43, rotating rod; 431, circular cutter; 432, cleaning cotton; 433, first transmission gear; 44, collecting box; 441, material guide tube; 442, material guide plate; 443, rotating block; 444, second transmission gear; 445, transmission rod; 446, material dividing cutter; 447, first spring; 448, telescopic chamber; 45, third transmission gear; 451, fourth transmission gear; 452, output gear; 453, driving gear. DETAILED DESCRIPTION

[0033] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0034] like Figures 1 to 5As shown, an automatic pressing device for a liquid crystal display screen described in an embodiment of the present invention comprises a bottom plate 1, a device body 2 is fixed to the top of the bottom plate 1 through a connecting plate, a heating pressing plate 21 is arranged at the bottom of the device body 2, a material discharge rack 22 is arranged at the bottom of the heating pressing plate 21, a material discharge plate 3 is arranged above the bottom plate 1, a threaded sleeve 31 is fixed to one side of the bottom end of the material discharge plate 3, a sliding sleeve is fixed to the side symmetrical to the bottom end of the material discharge plate 3 and the threaded sleeve 31, a threaded rod 12 is rotatably connected to one side of the bottom end of the bottom plate 1, a motor 11 is installed at one end of the bottom plate 1 away from the device body 2, an end of the motor 11 is fixedly connected to one end of the threaded rod 12, the threaded rod 12 is threadedly connected to the threaded sleeve 31, a sliding rod is fixedly connected to the side symmetrical to the threaded rod 12 at the bottom end of the bottom plate 1, the sliding sleeve of the material discharge plate 3 is slidably connected to the outside of the sliding rod, a rubber brush roller 4 is arranged between the material discharge plate 3 and the material discharge rack 22, and a rubber outlet pipe 41 is arranged above the rubber brush roller 4;

[0035] During the production process of the LCD display, it is necessary to press the LCD screen and the backlight panel together. Before pressing, the backlight panel and the LCD screen need to be placed on the processing station. At this time, the backlight panel is placed on the top of the discharge plate 3. The limit blocks around the top of the discharge plate 3 can limit the backlight panel. Then the LCD screen is placed on the top of the discharge rack 22. At this time, the motor 11 is started to rotate forward, and the motor 11 drives the threaded rod 12 to rotate. The threaded rod 12 drives the threaded sleeve 31 to move. The sliding sleeve slides on the outside of the sliding rod to guide the discharge plate 3. At this time, the threaded sleeve 31 drives the discharge plate 3 to move toward the bottom of the equipment body 2, and the discharge plate 3 drives the backlight panel to move in the direction of the equipment body 2. During the movement of the discharge plate 3, it will pass under the glue brush roller 4. At this time, the glue outlet pipe 41 sprays OCA glue. After spraying, the glue brush roller 4 rotates to evenly apply the glue on the surface of the backlight panel. When the discharge plate 3 leaves the bottom of the glue brush roller 4, the glue brush roller 4 stops rotating, and the glue outlet pipe 41 stops discharging glue. At this time, the backlight panel can complete the gluing operation during the movement, saving the time required for separate gluing. At the same time, pressing can be performed directly after gluing, reducing the time that the glue is exposed to the air and greatly reducing the possibility of glue adhering to the fiber. When the discharge plate 3 transports the backlight panel to the bottom of the equipment body 2, the LCD screen at the top of the discharge rack 22 can be aligned with the backlight panel. At this time, the equipment body 2 is started to push the heated pressing plate 21 downward, and the LCD screen at the top of the discharge rack 22 can be pushed to the top of the backlight panel. At the same time, the heated pressing plate 21 applies pressure to press the backlight panel and the LCD screen together. During the pressing process, the heated pressing plate 21 heats it to speed up the pressing speed. When the pressing is completed, the heated pressing plate 21 rises, and then the motor 11 rotates in the opposite direction. At this time, the discharge plate 3 moves to restore the initial position and drives the pressed LCD screen to move. Then the worker can remove the pressed LCD screen and replace the backlight panel and LCD screen that need to be pressed, and then repeat the above operation.

[0036] like Figures 4 to 7 As shown, a glue storage box 412 is provided on one side of the glue outlet pipe 41, and the glue storage box 412 is fixed to the top of the bottom plate 1. A liquid pump 411 is installed on the top of the glue storage box 412. The liquid pump 411 is connected to the glue outlet pipe 41 through a connecting pipe, and the liquid pump 411 is connected to the inside of the glue storage box 412. A glue brushing plate 413 is fixed to the bottom end of the glue outlet pipe 41, and a plurality of glue outlet holes are opened on the surface of the glue brushing plate 413.

[0037] During the glue discharging process of the glue discharging pipe 41, the liquid extraction pump 411 is started to extract glue from the inside of the glue storage box 412, and then the liquid extraction pump 411 outputs the glue to the inside of the glue discharging pipe 41 through the connecting pipe. At this time, the glue discharging pipe 41 can spray the glue, and the glue is sprayed out through the glue outlet hole of the glue brushing plate 413. The glue stays on the surface of the glue brushing plate 413, and will contact the surface of the glue brushing plate 413 during the rotation of the glue brushing roller 4. At this time, the glue on the surface of the glue brushing plate 413 can be smeared on the surface of the glue brushing roller 4, so that the glue can be more evenly distributed on the outside of the glue brushing roller 4, and then the glue brushing roller 4 brushes the glue on the surface of the backlight panel, which can make the glue brushing roller 4 more uniform during the glue brushing process.

[0038] like Figures 1 to 6 As shown, teeth 32 are fixed on both sides of the bottom end of the discharge plate 3, support columns 42 are provided on both sides of the rubber brush roller 4, the bottom end of the support column 42 is fixedly connected to the bottom plate 1, the internal rotation of the support column 42 is connected to a rotating frame 422, and third transmission gears 45 are fixed on both ends of the rubber brush roller 4, the third transmission gear 45 is rotatably connected to the rotating frame 422, and a fourth transmission gear 451 is rotatably connected to a side of the rotating frame 422 close to the third transmission gear 45, and one side of the top of the fourth transmission gear 451 is meshed with the bottom end of the third transmission gear 45, and an output gear 452 is meshed below the fourth transmission gear 451, and the output gear 452 is fixedly connected to a driving gear 453 through a rotating shaft, and the rotating shaft is rotatably connected to the top of the support column 42 through a connecting block, and the driving gear 453 can be meshed with the teeth 32;

[0039] When the glue brushing roller 4 needs to rotate to brush glue on the backlight panel, the discharge plate 3 will pass through the top of the driving gear 453 during its movement. During this process, the teeth 32 will mesh with the driving gear 453. The driving gear 453 rotates to drive the output gear 452 to rotate. The output gear 452 transmits the transmission to the third transmission gear 455 through the fourth transmission gear 451. At this time, the third transmission gear 45 can drive the glue brushing roller 4 to rotate, and the glue brushing roller 4 can continue to rotate and brush glue during the movement of the discharge plate 3.

[0040] like Figure 5 to Figure 6 As shown, a return spring 425 is fixed to the outside of the rotating shaft of the rotating frame 422, and the other end of the return spring 425 is fixedly connected to the support column 42, and a push rod 423 is fixed to one end of the rotating frame 422 away from the third transmission gear 45;

[0041] When applying glue to the backlight panel, it is necessary to make the glue brush roller 4 close to the surface of the backlight panel. Therefore, when the discharge plate 3 passes the active gear 453, the push rod 423 will be pushed by the discharge plate 3. At this time, the push rod 423 drives the rotating frame 422 to rotate, and the rotating frame 422 can drive the glue brush roller 4 to rotate. After the glue brush roller 4 rotates, the height will be reduced. At this time, the glue brush roller 4 will be closer to the top of the discharge plate 3, which is more convenient for subsequent glue brushing on the surface of the backlight panel.

[0042] like Figures 2 to 6 As shown, an elastic sheet 424 is fixed to the top of the push rod 423, and both sides of the bottom of the discharge plate 3 are provided with a slide groove 33, a receiving groove 331 is provided between the slide groove 33 and the teeth 32, and a sliding hole is provided between the slide groove 33 and the receiving groove 331. A rack 34 is slidably connected inside the receiving groove 331, and a push block 341 is fixed to the side of the rack 34 close to the slide groove 33. The push block 341 is slidably connected inside the slide groove 33 and the sliding hole. Two limit rods 421 are fixed to the end of the support column 42 away from the push rod 423, and the limit rods 421 are arranged on both sides of the rotating frame 422;

[0043] After the rotating frame 422 drives the glue brush roller 4 to rotate, the distance between the glue brush roller 4 and the discharge plate 3 will be extended. Therefore, after the active gear 453 is meshed with the teeth 32, the glue brush roller 4 still needs a certain distance to contact the backlight plate. As a result, the active gear 453 is separated from the teeth 32 before the glue brush roller 4 completes the gluing of the backlight plate at the top of the discharge plate 3, and cannot drive the active gear 453 to continue rotating. To solve this problem, a rack 34 is provided. When the push rod 423 is pushed by the discharge plate 3, the push rod 423 rotates, and then the push rod 423 drives the elastic sheet 424 to slide into the interior of the slide groove 33. Before the active gear 453 is separated from the teeth 32, the elastic sheet 424 will contact the push block 341. When the sheet 424 is moved, the push block 341 can be pulled to slide inside the slide groove 33. At this time, the push block 341 can drive the rack 34 to slide out from the inside of the storage groove 331. Then the rack 34 can continue to mesh with the driving gear 453, driving the driving gear 453 to continue to rotate, completing the glue brushing of the rear glue brushing roller 4. During the reverse movement, the elastic sheet 424 can pull the rack 34 back to the inside of the storage groove 331. Under the limiting action of the limiting rod 421, because the elastic sheet 424 is elastic, the elastic sheet 424 can pull the push block 341 to one end, and then the elastic sheet 424 is deformed by the reverse force. After deformation, the elastic sheet 424 is separated from the push block 341, and then the elastic sheet 424 will automatically restore its shape.

[0044] like Figure 5 to Figure 6As shown, a rotating rod 43 is provided on one side of the rubber brush roller 4 close to the rubber outlet pipe 41, circular cutters 431 are fixed on both sides of the rotating rod 43, and a cleaning cotton 432 is provided between the circular cutters 431. A first transmission gear 433 is fixed on both ends of the rotating rod 43, and the first transmission gear 433 is rotatably connected to the rotating frame 422, and the bottom end of the first transmission gear 433 is meshed and connected with the fourth transmission gear 451;

[0045] During the lamination process, some glue may overflow from between the backlight panel and the LCD screen. The size of the backlight panel will be larger than that of the LCD screen, which will cause the overflowed glue to remain at the edge of the backlight panel. After lamination, the glue will solidify. After lamination, the overflowed glue needs to be cleaned. After the discharge plate 3 is moved out from the bottom of the device body 2, the discharge plate 3 will push the push rod 423 in the opposite direction. At this time, the rotating frame 422 drives one side of the rotating rod 43 to move downward. At this time, the discharge plate 3 moves to the bottom of the rotating rod 43 and the teeth 32 will continue to drive the active gear 453 to rotate. At this time, the rotating rod 43 can drive the rotating rod 43 to rotate. The rotating rod 43 drives the cleaning cotton 432 to rotate to wipe the surface of the LCD screen, and at the same time drives the circular cutter 431 to rotate to cut the solidified glue at the edge of the backlight panel to separate it from the LCD screen, which is convenient for the subsequent cleaning of the solidified glue.

[0046] like Figure 5 and Figure 8 As shown, a collecting box 44 is arranged above the circular cutter 431, a material guide tube 441 is fixed to one end of the collecting box 44 close to the support column 42, a material feed port is opened at the bottom of the collecting box 44 close to the circular cutter 431, a material guide plate 442 is fixed below the material feed port, and the collecting box 44 is fixed to the top of the rotating frame 422 through a supporting frame;

[0047] After the circular cutter 431 cuts the solidified glue, the guide plate 442 can scoop up the solidified glue, and the scooped solidified glue can enter the interior of the collection box 44 through the feed port. The collection box 44 can collect the solidified glue and discharge it to the outside through the guide pipe 441.

[0048] like Figures 8 to 9 As shown, a rotating block 443 is rotatably connected inside the collection box 44, a material dividing cutter 446 is arranged outside the rotating block 443, a second transmission gear 444 is fixed to one end of the rotating block 443 away from the material guide tube 441, a transmission rod 445 is rotatably connected to one side of the collection box 44, the second transmission gear 444 is meshed with a gear at one end of the transmission rod 445, and the gear at the other end of the transmission rod 445 is meshed with the first transmission gear 433;

[0049] When the first transmission gear 433 rotates, it will drive the second transmission gear 444 to rotate through the transmission rod 445. At this time, the second transmission gear 444 drives the rotating block 443 to rotate, and the rotating block 443 drives the dividing cutter 446 to rotate. The dividing cutter 446 can cut off the solidified glue. At this time, the solidified glue after cutting off can be more easily discharged from the guide tube 441.

[0050] like Figures 8 to 9 As shown, a telescopic cavity 448 is provided inside the rotating block 443, and the bottom end of the material dividing cutter 446 is inserted inside the telescopic cavity 448. A first spring 447 is fixed to the bottom end of the material dividing cutter 446, and the bottom end of the first spring 447 is fixedly connected to the inner wall of the telescopic cavity 448;

[0051] The dividing cutter 446 is pushed by the elastic force of the first spring 447. When the dividing cutter 446 passes through the feed port, the elastic force of the first spring 447 is released, driving the dividing cutter 446 to quickly cut off the solidified glue, so that the dividing cutter 446 can more easily cut off the solidified glue. At this time, the solidified glue on both sides of the backlight panel can be cleaned, reducing the subsequent cleaning time.

[0052] like Figure 10 to Figure 11 As shown, both sides of the top of the discharge rack 22 and the end away from the discharge plate 3 are fixed with limit plates 221, and a support plate 222 is arranged below the limit plate 221, and a support shaft 223 is fixed to the end of the support plate 222 close to the limit plate 221, and the support shaft 223 is rotatably connected to the inside of the discharge rack 22, and coil springs 224 are fixed to the outside of the two ends of the support shaft 223, and the outer side of the coil spring 224 is fixedly connected to the discharge rack 22, and a pull rope 225 is fixed to the bottom of the support plate 222 through a connecting column, and a lifting bar 226 is rotatably connected to the inside of the limit plate 221, and the end of the lifting bar 226 away from the support plate 222 is fixedly connected to the pull rope 225;

[0053] When the LCD screen is placed on the discharge rack 22, the support plate 222 can support the LCD screen, and the limit plate 221 can position the LCD screen. When the heated pressing plate 21 is pressed downward, the heated pressing plate 21 first contacts the lifting bar 226. At this time, the lifting bar 226 is pushed and pulls the pull rope 225. At this time, the pull rope 225 pulls the support plate 222 to flip and keep it vertical with the discharge rack 22. The LCD screen on the top of the support plate 222 can fall on the top of the discharge plate 3 under the guidance of the support plate 222. At this time, the heated pressing plate 21 can press the LCD screen and the backlight panel. When the heated pressing plate 21 is raised after pressing, the coil spring 224 will drive the support plate 222 to automatically restore its original position, which can facilitate automatic unloading.

[0054] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. An automatic pressing device for a liquid crystal display screen, characterized in that: The device comprises a bottom plate (1), the top of the bottom plate (1) being fixed with a device body (2) via a connecting plate, the bottom of the device body (2) being provided with a heating pressing plate (21), the bottom of the heating pressing plate (21) being provided with a material discharging rack (22), a material discharging plate (3) being provided above the bottom plate (1), a threaded sleeve (31) being fixed to one side of the bottom of the material discharging plate (3), a sliding sleeve being fixed to one side of the bottom of the material discharging plate (3) being symmetrical to the threaded sleeve (31), and a threaded rod (12) being rotatably connected to one side of the bottom of the bottom plate (1). A motor (11) is installed at one end of the bottom plate (1) away from the equipment body (2), the end of the motor (11) is fixedly connected to one end of the threaded rod (12), the threaded rod (12) is threadedly connected to the threaded sleeve (31), a sliding rod is fixedly connected to the bottom end of the bottom plate (1) and the symmetrical side of the threaded rod (12), the sliding sleeve of the discharge plate (3) is slidably connected to the outside of the sliding rod, a rubber brush roller (4) is arranged between the discharge plate (3) and the discharge frame (22), and a rubber outlet pipe (41) is arranged above the rubber brush roller (4).

2. The automatic pressing device for a liquid crystal display screen according to claim 1, characterized in that: A glue storage box (412) is provided on one side of the glue outlet pipe (41). The glue storage box (412) is fixed to the top of the bottom plate (1). A liquid extraction pump (411) is installed on the top of the glue storage box (412). The liquid extraction pump (411) and the glue outlet pipe (41) are connected via a connecting pipe. The liquid extraction pump (411) is connected to the inside of the glue storage box (412). A glue brushing plate (413) is fixed to the bottom end of the glue outlet pipe (41). A plurality of glue outlet holes are provided on the surface of the glue brushing plate (413).

3. The automatic pressing device for a liquid crystal display screen according to claim 1, characterized in that: Teeth (32) are fixed on both sides of the bottom end of the discharge plate (3), support columns (42) are provided on both sides of the rubber brush roller (4), the bottom end of the support column (42) is fixedly connected to the bottom plate (1), the support column (42) is rotatably connected to a rotating frame (422) inside, third transmission gears (45) are fixed on both ends of the rubber brush roller (4), the third transmission gear (45) is rotatably connected to the rotating frame (422), a side of the rotating frame (422) close to the third transmission gear (45) is rotatably connected to a fourth transmission gear (451), one side of the top end of the fourth transmission gear (451) is meshedly connected to the bottom end of the third transmission gear (45), an output gear (452) is meshedly connected below the fourth transmission gear (451), the output gear (452) is fixedly connected to a driving gear (453) via a rotating shaft, the rotating shaft is rotatably connected to the top end of the support column (42) via a connecting block, and the driving gear (453) can be meshedly connected to the teeth (32).

4. The automatic pressing device for a liquid crystal display screen according to claim 3 is characterized in that: A return spring (425) is fixed to the outside of the rotating shaft portion of the rotating frame (422), the other end of the return spring (425) is fixedly connected to the support column (42), and a push rod (423) is fixed to one end of the rotating frame (422) away from the third transmission gear (45).

5. The automatic pressing device for a liquid crystal display screen according to claim 4, characterized in that: An elastic sheet (424) is fixed to the top of the push rod (423), slide grooves (33) are provided on both sides of the bottom of the discharge plate (3), a receiving groove (331) is provided between the slide groove (33) and the teeth (32), a sliding hole is provided between the slide groove (33) and the receiving groove (331), a rack (34) is slidably connected inside the receiving groove (331), a push block (341) is fixed on the side of the rack (34) close to the slide groove (33), and the push block (341) is slidably connected inside the slide groove (33) and the sliding hole, and two limit rods (421) are fixed on the end of the support column (42) away from the push rod (423), and the limit rods (421) are arranged on both sides of the rotating frame (422).

6. The automatic pressing device for a liquid crystal display screen according to claim 5, characterized in that: A rotating rod (43) is provided on one side of the rubber brush roller (4) close to the rubber outlet pipe (41); circular cutters (431) are fixed on both sides of the rotating rod (43); cleaning cotton (432) is provided between the circular cutters (431); first transmission gears (433) are fixed at both ends of the rotating rod (43); the first transmission gear (433) is rotatably connected to the rotating frame (422); and the bottom end of the first transmission gear (433) is meshedly connected to a fourth transmission gear (451).

7. The automatic pressing device for a liquid crystal display screen according to claim 6, characterized in that: A collection box (44) is arranged above the circular cutter (431); a material guide tube (441) is fixed to one end of the collection box (44) close to the support column (42); a material feed port is provided at the bottom end of the collection box (44) close to the circular cutter (431); a material guide plate (442) is fixed below the material feed port; and the collection box (44) is fixed to the top end of the rotating frame (422) via a support frame.

8. The automatic pressing device for a liquid crystal display screen according to claim 7, characterized in that: A rotating block (443) is rotatably connected inside the collection box (44), a material dividing cutter (446) is arranged outside the rotating block (443), a second transmission gear (444) is fixed to one end of the rotating block (443) away from the material guide tube (441), a transmission rod (445) is rotatably connected to one side of the collection box (44), the second transmission gear (444) is meshingly connected to a gear at one end of the transmission rod (445), and a gear at the other end of the transmission rod (445) is meshingly connected to the first transmission gear (433).

9. The automatic pressing device for a liquid crystal display screen according to claim 8, characterized in that: A telescopic cavity (448) is provided inside the rotating block (443), the bottom end of the material dividing cutter (446) is inserted into the telescopic cavity (448), a first spring (447) is fixed to the bottom end of the material dividing cutter (446), and the bottom end of the first spring (447) is fixedly connected to the inner wall of the telescopic cavity (448).

10. The automatic pressing device for a liquid crystal display screen according to claim 1, characterized in that: Limiting plates (221) are fixed to both sides of the top of the material discharging rack (22) and to one end away from the material discharging plate (3); a supporting plate (222) is arranged below the limiting plate (221); a supporting shaft (223) is fixed to one end of the supporting plate (222) close to the limiting plate (221); the supporting shaft (223) is rotatably connected to the inside of the material discharging rack (22); coil springs (224) are fixed to the outside of both ends of the supporting shaft (223); the outside of the coil spring (224) is fixedly connected to the material discharging rack (22); a pull rope (225) is fixed to the bottom of the supporting plate (222) via a connecting column; a lifting bar (226) is rotatably connected to the inside of the limiting plate (221); and one end of the lifting bar (226) away from the support plate (222) is fixedly connected to the pull rope (225).

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