Liquid crystal display screen edge sealing equipment with pre-treatment function

Abstract

The present application relates to the technical field of gluing equipment, and particularly relates to liquid crystal display screen edge sealing equipment with pretreatment function, which comprises a base, the top of the base is connected with a shell, the inner top of the shell is installed with an XY axis moving platform, the XY axis moving platform is installed with a cylinder one, the telescopic rod of the cylinder one is connected with a mounting bracket, the mounting bracket is provided with a rotary glue applicator, two belt conveying assemblies one are arranged on the upper side in the base, a belt conveying assembly two is arranged on the upper side in the base and located between the two belt conveying assemblies one, a cleaning mechanism is arranged on the mounting bracket and used for cleaning glue remaining on the outside of the glue head of the rotary glue applicator. The rotation of the rotary glue applicator can make the glue head on it turn to contact with the cleaning paper, through the cooperation of the driven roller, the electric roller and the guide roller, the cleaning paper can move along the preset path, the glue remaining on the outside of the glue head can be effectively cleaned, the consistency and stability of each gluing operation can be ensured, and the production efficiency and product quality can be improved.

Description

Technical Field

[0001] The present invention relates to the technical field of glue coating equipment, and in particular to a liquid crystal display screen edge glue sealing device with a pre-processing function. Background Art

[0002] Liquid crystal displays (LCDs) are a type of display technology widely used in electronic products such as televisions, monitors, laptops, mobile phones, and instruments. Their basic structure consists of a liquid crystal material sandwiched between two glass substrates. By controlling the electric field, the transmittance of light is adjusted, thereby displaying images.

[0003] Edge sealing is a critical process in the manufacture of LCDs. Its primary functions include: sealing the liquid crystal cavity to prevent leakage of liquid crystal material; blocking the ingress of external contaminants such as moisture, air, and dust to ensure display performance; enhancing the overall mechanical strength of the panel; and improving the long-term stability and reliability of the product.

[0004] Currently, edge sealing of LCD screens is typically achieved by applying glue to the edges of the LCD screen using a gluing machine. While existing gluing machines can generally complete the gluing process on the edges of LCD screens, they still have some deficiencies in practical applications. One prominent issue is that existing gluing machines lack a mechanism for effectively cleaning the exterior of the gluing head. Due to the lack of a cleaning mechanism, glue residue is easily left on the exterior of the gluing head during use. This residual glue on the exterior of the gluing head rapidly solidifies upon exposure to air, resulting in poor glue dispensing, affecting subsequent gluing efforts, and potentially even causing product quality issues. Summary of the Invention

[0005] The present invention provides a liquid crystal display edge sealing device with a pre-treatment function, which is intended to effectively clean glue residual on the outside of a gluing head, ensure the consistency and stability of each gluing operation, and improve production efficiency and product quality.

[0006] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a liquid crystal display edge sealing device with a pre-processing function, comprising a base, a shell connected to the top of the base, an XY-axis moving platform installed on the top of the inner side of the shell, a cylinder 1 installed on the XY-axis moving platform, a mounting frame connected to the telescopic rod of the cylinder 1, a rotary glue applicator provided on the mounting frame, two belt conveyor assemblies 1 provided on the upper inner side of the base, a belt conveyor assemblies 2 located between the two belt conveyor assemblies 1 provided on the upper inner side of the base, a cleaning mechanism provided on the mounting frame for cleaning glue remaining on the outside of the gluing head of the rotary glue applicator, the cleaning mechanism comprising a driven roller arranged on the mounting frame for supporting cleaning paper, an electric roller for winding the cleaning paper provided on the side of the mounting frame close to the driven roller, an upper and lower guide rollers for guiding the cleaning paper provided on the mounting frame, and two upper and lower pressure sensors installed on the mounting frame.

[0007] Preferably, the rotary glue applicator includes a reduction motor installed on a mounting frame, a glue barrel is connected to the output shaft of the reduction motor, the bottom of the glue barrel is rotatably connected to a glue outlet nozzle, the bottom of the glue outlet nozzle is connected to a hollow sphere, a glue outlet hole is opened at the bottom of the hollow sphere, a hollow hemisphere is rotatably connected to the lower part of the outer wall of the hollow sphere through a rotating shaft, a glue hose is connected to the upper part of the hollow hemisphere at uniform intervals along the circumferential direction, a glue coating head is threadedly connected to the hose, a locking assembly for locking the hollow hemisphere is provided on the upper part of the outer wall of the hollow sphere, the outer wall of the glue barrel is connected to a mounting block, a drive motor is installed on the mounting block, and the drive motor is transmission-connected to the glue outlet nozzle through a transmission assembly.

[0008] Preferably, a lifting plate is slidably connected to the base through a sliding rod, the lifting plate is located between the two belt conveyor components one, the belt conveyor component two is arranged on the top of the lifting plate, a cylinder two for driving the lifting plate to rise and fall is installed at the bottom inner side of the base, a camera is installed on the top of the shell directly above the lifting plate, a belt conveyor component three is provided in the base, the belt conveyor component three is located below one of the belt conveyor components one, and an infrared sensor is embedded in the side of the top of the shell near the camera.

[0009] Preferably, an electric slide rail is installed on the side of the inner bottom of the shell close to the camera, and a plasma cleaning machine for cleaning the liquid crystal display screen is installed on the slider of the electric slide rail.

[0010] Preferably, a centering mechanism for pushing the liquid crystal display screen to move and center is provided in the shell, and the centering mechanism includes two guide rails 1 installed in the shell, and the guide rail 1 is located directly below the XY axis moving platform. There are two guide rails 2 slidingly connected between the two guide rails 1, and one of the guide rails 1 is provided with a bidirectional screw motor 1 for driving the two guide rails 2 to approach and move away from each other, and two L-shaped push blocks are slidingly connected to the guide rail 2, and a bidirectional screw motor 2 is provided on the guide rail 2 for driving the two L-shaped push blocks thereon to approach and move away from each other.

[0011] Preferably, a cylinder three is installed at the bottom inner side of the base and is located directly below the XY axis moving platform, and an electric suction cup is installed on the telescopic rod of the cylinder three.

[0012] Preferably, the locking assembly includes a second hollow hemisphere connected to the upper outer wall of the hollow sphere, the bottom of the second hollow hemisphere is connected to rubber clamping balls at even intervals along the circumference, and the top of the first hollow hemisphere is provided with slots matching the rubber clamping balls at even intervals along the circumference.

[0013] Preferably, the cleaning mechanism also includes a connecting frame connected to the mounting frame, the connecting frame is located between the upper and lower guide rollers, two rotating rods are rotatably connected to the connecting frame, a pushing block is connected to the rotating rods, the two rotating rods are connected through a gear set, a motor is installed on the connecting frame, and the output shaft of the motor is connected to one of the rotating rods through transmission component 2.

[0014] Compared with the prior art, the present invention has the following advantages:

[0015] 1. The rotation of the rotary glue applicator can make the glue head on it turn to contact the cleaning paper. Through the cooperation of the driven roller, the motorized roller and the guide roller, the cleaning paper can be moved along the preset path, effectively cleaning the glue remaining on the outside of the glue applicator, ensuring the consistency and stability of each glue application operation, and improving production efficiency and product quality.

[0016] 2. Through the cooperation of the belt conveyor component 2, the lifting plate, the cylinder 2, the camera and the belt conveyor component 3, the automatic sorting and classification of qualified products and unqualified products can be achieved.

[0017] 3. The electric slide rail can drive the plasma cleaning machine to move horizontally and reciprocatingly, and perform uniform plasma cleaning on the edge surface of the LCD screen, effectively removing dust particles and organic pollutants adsorbed on the surface of the LCD screen, improving the surface energy of the material, and enhancing the adhesion and sealing performance of the glue in the subsequent sealing process.

[0018] 4. The centering mechanism composed of guide rail 1, guide rail 2, L-shaped push block, bidirectional screw motor 1 and bidirectional screw motor 2 can push the LCD screen to move to the center, realize automatic correction of the LCD screen, avoid gluing the LCD screen in a skewed state, thereby improving the gluing accuracy and improving product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0020] Figure 2 It is a schematic diagram of the connection between the rotating shaft, pulley and fastening bolts of the present invention.

[0021] Figure 3Schematic diagram of the partial three-dimensional structure of the present invention Figure 1 .

[0022] Figure 4 This is a schematic diagram of the installation of the rotary glue applicator and cleaning mechanism of the present invention.

[0023] Figure 5 It is a three-dimensional structural schematic diagram of the rotary glue applicator and cleaning mechanism of the present invention.

[0024] Figure 6 1 is an exploded view of the rotary glue coater of the present invention.

[0025] Figure 7 It is a partial three-dimensional structural schematic diagram of the rotary glue coater of the present invention.

[0026] Figure 8 It is a partial exploded view of the spin coater of the present invention.

[0027] Figure 9 Schematic diagram of the partial three-dimensional structure of the present invention Figure 2 .

[0028] Figure 10 It is a schematic diagram of the three-dimensional structure of the cleaning mechanism of the present invention.

[0029] Figure 11 It is a partial three-dimensional structural schematic diagram of the cleaning mechanism of the present invention.

[0030] Figure 12 It is a schematic diagram of the three-dimensional structure of the centering mechanism of the present invention.

[0031] In the figure: 1-base, 2-shell, 21-transparent window, 22-infrared sensor, 3-XY axis moving platform, 4-cylinder 1, 41-mounting frame, 5-rotary glue applicator, 51-reduction motor, 52-glue barrel, 53-glue nozzle, 54-hollow sphere, 55-glue hole, 56-rotating shaft, 57-hollow hemisphere 1, 58-hose, 59-glue head, 510-hollow hemisphere 2, 512-rubber card ball, 513-card slot, 514-mounting block, 515-drive motor, 516-transmission component 1, 61-driven roller, 62-motorized roller, 63-guide roller, 64-pressure sensor, 65-cleaning paper, 66-pressure roller, 67-connecting Frame, 68-rotating rod, 69-pushing block, 610-gear set, 611-motor, 612-transmission component 2, 7-belt conveyor component 1, 71-rotating shaft, 72-pulley, 73-conveyor belt, 74-servo motor, 75-fastening bolt, 8-belt conveyor component 2, 9-slide rod, 10-lifting plate, 11-cylinder 2, 12-camera, 13-belt conveyor component 3, 14-electric slide rail, 15-plasma cleaning machine, 161-guide rail 1, 162-guide rail 2, 163-L-shaped pushing block, 164-bidirectional screw motor 1, 165-bidirectional screw motor 2, 166-L-shaped rubber block, 17-cylinder 3, 18-electric suction cup. DETAILED DESCRIPTION

[0032] See also Figures 1-11, a liquid crystal display edge sealing device with a pre-processing function, including a base 1, a shell 2 is connected to the middle of the top of the base 1, the bottom of the shell 2 is an open design, and the left and right sides of the shell 2 are provided with an entrance and exit for the liquid crystal display screen to enter and exit, an XY axis moving platform 3 is installed on the right side of the top inside the shell 2, and a cylinder 4 is installed on the XY axis moving platform 3, and the cylinder 4 can be driven to move left and right and forward and backward through the XY axis moving platform 3. The XY axis moving platform 3 is a prior art and will not be described in detail here. A mounting frame 41 is connected to the telescopic rod of the cylinder 4, and a rotary glue applicator 5 is provided on the mounting frame 41. Two left and right belt conveyor assemblies 7 are provided on the upper inner side of the base 1, and the belt conveyor assembly 7 includes a rotatable connection to the base 1, there are two left and right rotating shafts 71 on the upper side of the rotating shaft 71, and two front and rear pulleys 72 are slidably sleeved on the rotating shaft 71. A conveyor belt 73 for conveying the LCD screen is sleeved between the two corresponding pulleys 72 on the left and right. A servo motor 74 is installed on the upper side of the base 1. The output shaft of the servo motor 74 is connected to the rotating shaft 71 on the left. The pulley 72 is provided with two front and rear fastening bolts 75 for locking it on the rotating shaft 71. Loosening the fastening bolts 75 can release the lock of the pulley 72, so that the pulley 72 can be adjusted in the front and rear direction, thereby adjusting the distance between the front and rear conveyor belts 73 to accommodate LCD screens of different widths. Tightening the fastening bolts 75 can relock the pulley 72. The middle sliding part of the base 1 There are two groups of slide bars 9 connected in front and behind, the number of each group of slide bars 9 is two, and the two slide bars 9 in each group are set left and right. A lifting plate 10 is connected between the top ends of the two groups of slide bars 9. The lifting plate 10 is located between the two belt conveyor components 1 7. A belt conveyor component 2 8 is provided on the top of the lifting plate 10. A cylinder 2 11 for driving the lifting plate 10 to rise and fall is installed in the middle of the bottom inside the base 1. A camera 12 is installed on the top of the shell 2, which is located just above the lifting plate 10. An infrared sensor 22 is embedded in the top of the shell 2 and is located to the right of the camera 12. A belt conveyor component 3 13 is provided on the left side of the base 1, which is located below the left belt conveyor component 1 7. The structures of the belt conveyor components 2 8 and the belt conveyor component 3 13 are the same as those of the belt conveyor component 1 7, an electric slide 14 is installed on the left side of the camera 12 at the bottom inner side of the shell 2, and a plasma cleaning machine 15 for cleaning the LCD screen is installed on the slider of the electric slide 14, and a cylinder 3 17 is installed on the right side of the bottom inner side of the base 1, and the cylinder 3 17 is located directly below the XY axis moving platform 3, and an electric suction cup 18 is installed on the telescopic rod of the cylinder 3 17, and the electric suction cup 18 is located between the front and rear conveyor belts 73 of the right side belt conveyor assembly 7. Two left and right transparent windows 21 are embedded on the front and rear sides of the shell 2 to facilitate the operator to check the cleaning and gluing conditions of the LCD screen. A cleaning mechanism is provided on the mounting frame 41 for cleaning the glue remaining on the outside of the gluing head 59 of the rotary glue applicator 5.

[0033] See also Figure 4-Figure 8 The rotary glue applicator 5 comprises a speed reducer motor 51 mounted on the right side of the mounting frame 41, a glue barrel 52 connected to the output shaft of the speed reducer motor 51 and located on the front side of the mounting frame 41, a glue outlet nozzle 53 rotatably connected to the bottom of the glue barrel 52, a hollow sphere 54 connected to the bottom of the glue outlet nozzle 53, a glue outlet hole 55 opened on the bottom of the hollow sphere 54, a rotating shaft 56 rotatably connected to the lower right part of the outer wall of the hollow sphere 54, a hollow half sphere I 57 connected to the rotating shaft 56, the inner wall of the hollow half sphere I 57 closely abutting the outer wall of the hollow sphere 54, four glue pipes 58 evenly and circumferentially connected to the hollow half sphere I 57, glue applicator heads 59 threadedly connected to the glue pipes 58, each glue applicator head 59 having a different shape, a locking assembly provided on the upper part of the outer wall of the hollow sphere 54 for locking the hollow half sphere I 57, the locking assembly comprising a hollow half sphere II 510 connected to the upper part of the outer wall of the hollow sphere 54, the bottom of the hollow half sphere II 510 closely abutting the top of the hollow half sphere I 57, four rubber clamping balls 512 evenly and circumferentially connected to the bottom of the hollow half sphere II 510, four clamping grooves 513 evenly and circumferentially opened on the top of the hollow half sphere I 57 and matched with the rubber clamping balls 512, a mounting block 514 connected to the lower part of the outer wall of the glue barrel 52, a drive motor 515 mounted on the bottom left side of the mounting block 514, and the drive motor 515 drivingly connected to the glue outlet nozzle 53 through a transmission assembly I 516. In specific embodiments, the transmission assembly I 516 can be a belt transmission assembly, a synchronous belt transmission assembly, a chain transmission assembly, a gear transmission assembly, etc.

[0034] Referring to Figures 9-11 The cleaning mechanism comprises a driven roller 61 rotatably arranged on the left front side of the mounting frame 41 for supporting the cleaning paper 65, an electric roller 62 provided on the left side of the driven roller 61 on the left front side of the mounting frame 41 for winding the cleaning paper 65, two up-and-down guide rollers 63 rotatably arranged on the left lower side of the mounting frame 41 for guiding the cleaning paper 65, two up-and-down pressure sensors 64 mounted on the left lower side of the mounting frame 41, the pressure sensors 64 being located on the right side of the guide rollers 63, a pressure roller 66 rotatably arranged on the left lower side of the mounting frame 41 above the upper pressure sensor 64 for pressing the cleaning paper 65 against the pressure sensor 64, a connecting frame 67 connected to the left lower side of the mounting frame 41, the connecting frame 67 being located between the two up-and-down guide rollers 63, two front-and-rear rotating rods 68 rotatably connected to the connecting frame 67, pushing blocks 69 connected to the rotating rods 68, the two rotating rods 68 being drivingly connected through a gear set 610, the gear set 610 comprising two gears connected to the upper parts of the two rotating rods 68, the two gears being engaged, and a motor 611 mounted on the lower left part of the connecting frame 67, the output shaft of the motor 611 being drivingly connected to the front rotating rod 68 through a transmission assembly II 612. In specific embodiments, the transmission assembly I 516 can be a belt transmission assembly, a synchronous belt transmission assembly, a chain transmission assembly, a gear transmission assembly, etc.

[0035] The glue barrel 52 is connected to an external glue delivery device through a hose, and the LCD screen is transported to the right to the bottom of the plasma cleaning machine 15 through the left belt conveyor assembly 17. At the same time, the electric slide 14 is controlled to drive the plasma cleaning machine 15 to move back and forth, uniformly plasma cleaning the edge surface of the LCD screen, effectively removing dust particles and organic pollutants adsorbed on the surface of the LCD screen, improving the surface energy of the material, and enhancing the adhesion and sealing performance of the glue in the subsequent sealing process. The plasma cleaning machine 15 is a prior art and will not be described in detail here. The LCD screen is transported to the right to the bottom of the camera 12 through the belt conveyor assembly 28. The camera 12 captures the appearance of the LCD screen and transmits the captured image information to the background terminal. The background terminal performs intelligent analysis and detection on the received image to determine whether the product has appearance defects. When the background terminal recognizes that the LCD screen has appearance defects and determines that it is a substandard product, it sends a signal to the controller, which is not shown in the figure. The controller is a prior art and will not be described in detail here. After receiving the signal, the controller first controls the cylinder 2 11 to drive the lifting plate 10 to drive the belt conveyor component 2 8 to move downward, thereby driving the unqualified products to the same horizontal position as the belt conveyor component 3 13. Then the controller controls the belt conveyor component 2 8 and the belt conveyor component 3 13 to work, and sends the unqualified products to the left from the base 1, realizing automatic sorting and classification of qualified and unqualified products. Then the controller controls the cylinder 2 11 to drive the lifting plate 10 to drive the belt conveyor component 2 8 to move up and reset.

[0036] Qualified LCD screens are then conveyed rightward by belt conveyor assembly 2 8 to the bottom of the rotary glue applicator 5. When infrared sensor 22 detects that the LCD screen has reached the predetermined position, it sends a signal to the controller. Upon receiving the signal, the controller first controls cylinder 1 4 to drive mounting bracket 41, driving the rotary glue applicator 5 downward, thereby lowering the glue applicator head 59 until it contacts the edge of the LCD screen. The controller then controls the glue delivery device to deliver glue to the glue barrel 52. The glue flows through the glue outlet nozzle 53 into the hollow sphere 54, then through the glue hose 58 aligned with the glue outlet hole 55, and finally out of the glue applicator head 59, where it is evenly applied to the edge of the LCD screen. During this process, the controller also controls the XY-axis moving platform 3 to drive the rotary glue applicator 5 along the edge of the LCD screen, evenly applying the glue to the edge of the LCD screen and completing the glue sealing process.

[0037] When the glue coating head 59 reaches the corner of the LCD screen, the drive motor 515 is activated to drive the transmission assembly 1 516 to rotate the glue nozzle 53, thereby rotating the hollow sphere 54 and its upper components. This allows the glue coating head 59 to rotate along the corner of the LCD screen, evenly coating the glue at the corner and ensuring uniform glue coating at the corner. If glue coating is required on the side of the LCD screen, the electric suction cup 18 is first controlled to hold the LCD screen. Then, the cylinder 3 17 is controlled to drive the electric suction cup 18 to move the LCD screen upward, disengaging it from the conveyor belt 73 on the right belt conveyor assembly 1 7, allowing the glue coating head 59 to evenly coat the side of the LCD screen. After glue coating is completed, the cylinder 3 17 is controlled to drive the electric suction cup 18 to move the LCD screen downward onto the conveyor belt 73 on the right belt conveyor assembly 1 7. The electric suction cup 18 is then controlled to release the LCD screen. The LCD screen is then conveyed to the right by the right belt conveyor assembly 1 7 to the next process.

[0038] Before gluing, the rolled cleaning paper 65 is placed on the driven roller 61 and adjusted to pass through the pressure roller 66, the pressure sensor 64 and the guide roller 63, and finally around the motorized roller 62. After the gluing operation is completed, the reduction motor 51 is controlled to drive the glue barrel 52 to rotate, thereby driving the gluing head 59 to rotate to the left until it contacts the cleaning paper 65 (see Figure 9 ), the cleaning paper 65 then presses the pressure sensor 64. When the pressure sensor 64 detects that the pressure is greater than the preset value, the pressure sensor 64 sends a signal to the controller. After receiving the signal, the controller first controls the motor 611 to drive the front rotating rod 68 to rotate, and drives the rear rotating rod 68 to rotate through the gear set 610, thereby causing the two push blocks 69 to rotate to the right, bending the front and rear edges of the cleaning paper 65 inward so that the cleaning paper 65 fully wraps the glue outlet part of the gluing head 59. Subsequently, the controller controls the electric roller 62 to rotate and rewind the cleaning paper 65, and effectively cleans the glue remaining on the outside of the gluing head 59 through the cleaning paper 65, ensuring the consistency and stability of each gluing operation, and improving production efficiency and product quality. After the gluing head 59 is cleaned, the reduction motor 51 is controlled to drive the glue barrel 52 to reverse, thereby driving the gluing head 59 to rotate to the right and disengage from the cleaning paper 65, and the pressure sensor 64 detects that the pressure is less than the preset value. The pressure sensor 64 sends a signal to the controller. After receiving the signal, the controller controls the motor 611 to drive the front rotating rod 68 to reverse, thereby causing the two pushing blocks 69 to rotate leftward and reset. At the same time, the motorized roller 62 is controlled to be closed.

[0039] By driving the glue barrel 52 to rotate through the reduction motor 51, the angle of the glue head 59 can be adjusted, so that the glue coating angle can be flexibly adjusted according to different glue coating process requirements, so that the glue can be more accurately applied to the edge of the LCD screen, improving the quality and adaptability of the glue seal. Rotating the hollow hemisphere 57 can drive the hose 58 to rotate, so as to switch the next hose 58 to align with the glue outlet 55, thereby switching the next glue coating head 59 of different shapes to perform the glue coating operation to adapt to various glue coating tasks. When the hollow hemisphere 57 rotates, the rubber card ball 512 is squeezed and deformed. When the card slot 513 on the hollow hemisphere 57 rotates to align with the rubber card ball 512, the rubber card ball 512 returns to its original shape and clamps the hollow hemisphere 57 to prevent the hollow hemisphere 57 from rotating at will. Because the glue coating head 59 is threadedly connected to the hose 58, the glue coating head 59 can be easily removed from the hose 58 for replacement.

[0040] See also Figure 2 and Figure 12 As shown, a centering mechanism for pushing the liquid crystal display to move to the center is provided in the housing 2. The centering mechanism includes two guide rails 161 respectively installed on the right side of the inner wall of the front and rear sides of the housing 2. The guide rail 161 is located directly below the XY axis moving platform 3. The two guide rails 161 are slidably connected with two left and right guide rails 162. A bidirectional screw motor 164 is provided on the front guide rail 161. The screw on the bidirectional screw motor 164 is threadedly connected to the two guide rails 162 to drive the two guide rails 162 to move closer to each other. The guide rail 162 is provided with a two-way screw motor 165. The screw on the two-way screw motor 165 is threadedly connected to the two L-shaped push blocks 163 to drive the front and rear L-shaped push blocks 163 to move closer to and away from each other. The L-shaped push block 163 is located on the upper side of the conveyor belt 73 of the right belt conveyor assembly 7. The inner side of the L-shaped push block 163 is connected with an L-shaped rubber block 166 for buffering and protecting the LCD screen.

[0041] After the LCD screen is conveyed to the right below the rotary glue applicator 5, the bidirectional screw motor 1 164 is controlled to drive the left and right guide rails 2 162 toward each other, thereby driving the L-shaped push blocks 163 on the left and right sides toward each other. At the same time, the bidirectional screw motor 2 165 is controlled to drive the front and rear L-shaped push blocks 163 toward each other, so that the four L-shaped push blocks 163 are brought together to push the LCD screen to move to the center, automatically correcting the LCD screen and preventing the LCD screen from being glued while in a skewed state, thereby improving glue application accuracy and enhancing product quality. After the LCD screen is corrected, the bidirectional screw motor 1 164 is controlled to drive the left and right guide rails 2 162 away from each other, and the bidirectional screw motor 2 165 is controlled to drive the front and rear L-shaped push blocks 163 away from each other, thereby causing the four L-shaped push blocks 163 to move away from each other to avoid the rotary glue applicator 5.

Claims

1. A liquid crystal display edge sealing device with a pre-processing function, comprising a base (1), a shell (2) connected to the top of the base (1), an XY axis moving platform (3) installed on the top of the inner side of the shell (2), a cylinder (4) installed on the XY axis moving platform (3), a mounting frame (41) connected to the telescopic rod of the cylinder (4), a rotary glue applicator (5) provided on the mounting frame (41), two belt conveyor assemblies (7) provided on the inner upper side of the base (1), a belt conveyor assembly (8) located between the two belt conveyor assemblies (7) provided on the inner upper side of the base (1), and the characteristic of the invention is that: A cleaning mechanism is provided on the mounting frame (41) for cleaning glue remaining on the outside of the gluing head (59) of the rotary glue applicator (5), the cleaning mechanism comprising a driven roller (61) provided on the mounting frame (41) for supporting a cleaning paper (65), a motorized roller (62) for rewinding the cleaning paper (65) provided on a side of the mounting frame (41) close to the driven roller (61), the mounting frame (41) being provided with two upper and lower guide rollers (63) for guiding the cleaning paper (65), and two upper and lower pressure sensors (64) being installed on the mounting frame (41); The rotary glue applicator (5) includes a reduction motor (51) mounted on a mounting frame (41), a glue barrel (52) is connected to the output shaft of the reduction motor (51), a glue outlet nozzle (53) is rotatably connected to the bottom of the glue barrel (52), a hollow sphere (54) is connected to the bottom of the glue outlet nozzle (53), a glue outlet hole (55) is opened at the bottom of the hollow sphere (54), and a hollow hemisphere (57) is rotatably connected to the lower part of the outer wall of the hollow sphere (54) through a rotating shaft (56). The core hemisphere (57) is connected to a rubber hose (58) at even intervals along the circumferential direction, and a rubber coating head (59) is threadedly connected to the rubber hose (58). The upper portion of the outer wall of the hollow sphere (54) is provided with a locking assembly for locking the hollow hemisphere (57). The outer wall of the glue barrel (52) is connected to a mounting block (514), and a driving motor (515) is installed on the mounting block (514). The driving motor (515) is connected to the glue outlet nozzle (53) through a transmission assembly (516). A lifting plate (10) is slidably connected to the base (1) via a slide rod (9), the lifting plate (10) is located between two belt conveyor components (1) (7), the belt conveyor component (2) (8) is arranged on the top of the lifting plate (10), a cylinder (2) (11) for driving the lifting plate (10) to move up and down is installed at the bottom of the inner side of the base (1), a camera (12) located directly above the lifting plate (10) is installed on the top of the shell (2), a belt conveyor component (3) (13) is provided in the base (1), the belt conveyor component (3) (13) is located below one of the belt conveyor components (7), and an infrared sensor (22) is embedded in the side of the top of the shell (2) near the camera (12); An electric slide rail (14) is installed on the inner bottom side of the housing (2) near the camera (12), and a plasma cleaning machine (15) for cleaning the liquid crystal display screen is installed on the slider of the electric slide rail (14); The bottom of the inner side of the base (1) is provided with a cylinder three (17) located directly below the XY axis moving platform (3), and an electric suction cup (18) is installed on the telescopic rod of the cylinder three (17); The cleaning mechanism further includes a connecting frame (67) connected to the mounting frame (41), the connecting frame (67) being located between the upper and lower guide rollers (63), two rotating rods (68) being rotatably connected to the connecting frame (67), a push block (69) being connected to the rotating rods (68), the two rotating rods (68) being connected in transmission via a gear set (610), a motor (611) being mounted on the connecting frame (67), an output shaft of the motor (611) being connected in transmission via a second transmission assembly (612) to one of the rotating rods (68).

2. The liquid crystal display edge sealing device with pre-processing function according to claim 1, characterized in that: A centering mechanism for pushing the liquid crystal display to move and center is provided in the housing (2), and the centering mechanism includes two guide rails (161) installed in the housing (2), the guide rail (161) is located directly below the XY axis moving platform (3), and two guide rails (162) are slidably connected between the two guide rails (161), and a bidirectional screw motor (164) for driving the two guide rails (162) to move closer to and away from each other is provided on one of the guide rails (161), and two L-shaped push blocks (163) are slidably connected on the guide rail (162), and a bidirectional screw motor (165) for driving the two L-shaped push blocks (163) thereon is provided on the guide rail (162) to move closer to and away from each other.

3. The liquid crystal display edge sealing device with pre-processing function according to claim 1, characterized in that: The locking assembly includes a second hollow hemisphere (510) connected to the upper portion of the outer wall of the hollow sphere (54), the bottom of the second hollow hemisphere (510) is connected to rubber clamping balls (512) at even intervals along the circumference, and the top of the first hollow hemisphere (57) is provided with clamping grooves (513) matching the rubber clamping balls (512) at even intervals along the circumference.

Images