Liquid crystal display edge glue sealing equipment with pretreatment function

Abstract

The invention relates to the technical field of gluing equipment, in particular to liquid crystal display edge glue sealing equipment with a pretreatment function, which comprises a base, the top of the base is connected with a shell, the top of the inner side of the shell is provided with an XY-axis moving platform, the XY-axis moving platform is provided with an air cylinder I, and a telescopic rod of the air cylinder I is connected with a mounting frame; a mounting frame is arranged on the base, a rotary type glue applicator is arranged on the mounting frame, two first belt conveying assemblies are arranged on the upper side in the base, a second belt conveying assembly located between the two first belt conveying assemblies is arranged on the upper side in the base, and a cleaning mechanism is arranged on the mounting frame and used for cleaning glue remaining outside a glue applying head of the rotary type glue applicator. The rotary gluer rotates to enable the gluing head on the rotary gluer to rotate to be in contact with the cleaning paper, the cleaning paper can move along a preset path through cooperation of the driven roller, the electric roller and the guide roller, residual glue outside the gluing head is effectively cleaned, the consistency and stability of each gluing operation are ensured, and the production efficiency and the product quality are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of gluing equipment, and particularly to an edge sealing gluing equipment for liquid crystal displays with a pretreatment function. Background Art

[0002] Liquid crystal displays are a display technology widely used in electronic products such as televisions, monitors, laptop computers, mobile phones, instruments, and meters. Its basic structure consists of liquid crystal material sandwiched between two glass substrates. By controlling the change of the electric field, the light transmittance is adjusted to achieve image display.

[0003] In the manufacturing process of liquid crystal displays, edge sealing is a key process step. The main functions of this process include: sealing the liquid crystal cavity to prevent leakage of liquid crystal material; preventing external pollutants such as moisture, air, and dust from entering 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, the edge sealing of liquid crystal displays is usually achieved by using a gluing equipment to coat glue on the edge of the liquid crystal display. Although the existing gluing equipment can basically complete the edge sealing process of liquid crystal displays, there are still some deficiencies in practical applications. Among them, a relatively prominent problem is that the existing gluing equipment lacks an effective mechanism for cleaning the outside of the glue applicator head. Due to the lack of a cleaning mechanism, glue is likely to remain on the outside of the glue applicator head during use. After the glue remaining on the outside of the glue applicator head is exposed to the air, it will quickly solidify, resulting in poor glue discharge, affecting the subsequent gluing effect, and even possibly causing product quality problems. Summary of the Invention

[0005] The present invention provides an edge sealing gluing equipment for liquid crystal displays with a pretreatment function, which aims to effectively clean the glue remaining on the outside of the glue applicator head, ensure the consistency and stability of each gluing operation, and improve production efficiency and product quality.

[0006] To achieve the above object, the present invention provides the following technical solution: A liquid crystal display edge sealing device with a pretreatment function, including a base, a housing is connected to the top of the base, an XY-axis moving platform is installed on the inner top of the housing, a cylinder one is installed on the XY-axis moving platform, a mounting bracket is connected to the telescopic rod of the cylinder one, a rotary glue applicator is provided on the mounting bracket, two belt conveying components one are provided on the upper side inside the base, a belt conveying component two is provided on the upper side inside the base and is located between the two belt conveying components one, a cleaning mechanism is provided on the mounting bracket for cleaning the glue remaining outside the glue applicator head of the rotary glue applicator, the cleaning mechanism includes a driven roller provided on the mounting bracket for supporting the cleaning paper, an electric roller for winding the cleaning paper is provided on one side of the mounting bracket close to the driven roller, two upper and lower guide rollers for guiding the cleaning paper are provided on the mounting bracket, and two upper and lower pressure sensors are installed on the mounting bracket.

[0007] Preferably, the rotary glue applicator includes a reduction motor installed on the mounting bracket, a glue bucket is connected to the output shaft of the reduction motor, the bottom of the glue bucket 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, the lower part of the outer wall of the hollow sphere is rotatably connected to a hollow hemisphere one through a rotating shaft, a plurality of glue pipes are circumferentially and evenly spaced on the hollow hemisphere one, a glue applicator head is threadedly connected to the glue pipe, a locking component for locking the hollow hemisphere one is provided on the upper part of the outer wall of the hollow sphere, a mounting block is connected to the outer wall of the glue bucket, a driving motor is installed on the mounting block, and the driving motor is in transmission connection with the glue outlet nozzle through a transmission component one.

[0008] Preferably, a lifting plate is slidably connected to the inside of the base through a sliding rod, the lifting plate is located between the two belt conveying components one, the belt conveying component two is arranged on the top of the lifting plate, a cylinder two for driving the lifting plate to lift and lower is installed on the inner bottom of the base, a camera is installed on the top of the housing and is located directly above the lifting plate, a belt conveying component three is provided inside the base, the belt conveying component three is located below one of the belt conveying components one, and an infrared sensor is embeddedly installed on one side of the top of the housing close to the camera.

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

[0010] Preferably, a centering mechanism for pushing the liquid crystal display to move to the center is provided inside the housing, the centering mechanism includes two guide rails one installed inside the housing, the guide rails one are located directly below the XY-axis moving platform, two guide rails two are slidably connected between the two guide rails one, a bidirectional lead screw motor one for driving the two guide rails two to approach and move away from each other is provided on one of the guide rails one, two L-shaped push blocks are slidably connected to the guide rails two, and a bidirectional lead screw motor two for driving the two L-shaped push blocks on it to approach and move away from each other is provided on the guide rails two.

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

[0012] Preferably, the locking assembly includes a second hollow hemisphere connected to the upper part of the outer wall of the hollow sphere. Rubber clamping balls are evenly spaced along the circumference at the bottom of the second hollow hemisphere, and clamping grooves matching the rubber clamping balls are evenly spaced along the circumference at the top of the first hollow hemisphere.

[0013] Preferably, the cleaning mechanism further 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, and pushing blocks are connected to the rotating rods. The two rotating rods are drivingly connected through a gear set. A motor is installed on the connecting frame, and the output shaft of the motor is drivingly connected to one of the rotating rods through a second transmission assembly.

[0014] The present invention has the following advantages compared with the prior art: 1. The rotation of the rotary glue applicator enables the glue applicator head thereon to turn into contact with the cleaning paper. Through the cooperation of the driven roller, the electric roller and the guide roller, the cleaning paper can be made to move along a preset path, effectively cleaning the glue residues on the outside of the glue applicator head, ensuring the consistency and stability of each glue application operation, and improving production efficiency and product quality.

[0015] 2. Through the cooperation of the second belt conveying assembly, the lifting plate, the second cylinder, the camera and the third belt conveying assembly, automatic sorting and classification of qualified and unqualified products can be achieved.

[0016] 3. The electric slide rail can drive the plasma cleaner to move horizontally back and forth, uniformly performing plasma cleaning treatment on the edge surface of the liquid crystal display screen, effectively removing the dust particles and organic pollutants adsorbed on the surface of the liquid crystal display screen, enhancing the surface energy of the material, and strengthening the adhesion and sealing performance of the glue in the subsequent glue sealing process.

[0017] 4. Through the centering mechanism composed of the first guide rail, the second guide rail, the L-shaped pushing block, the first bidirectional screw motor and the second bidirectional screw motor, the liquid crystal display screen can be pushed to move to the center, realizing automatic correction of the liquid crystal display screen, avoiding glue application with the liquid crystal display screen in a skewed state, thereby improving the glue application accuracy and enhancing the product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a three-dimensional structural schematic diagram of the present invention.

[0019] Figure 2 is a connection schematic diagram of the rotating shaft, the belt pulley and the fastening bolt of the present invention.

[0020] Figure 3 is a partial three-dimensional structural schematic of the present inventionFigure 1 。

[0021] Figure 4 This is the installation schematic diagram of the rotary glue applicator and the cleaning mechanism of the present invention.

[0022] Figure 5 This is the three-dimensional structure schematic diagram of the rotary glue applicator and the cleaning mechanism of the present invention.

[0023] Figure 6 This is the exploded view of the rotary glue applicator of the present invention.

[0024] Figure 7 This is the partial three-dimensional structure schematic diagram of the rotary glue applicator of the present invention.

[0025] Figure 8 This is the partial exploded view of the rotary glue applicator of the present invention.

[0026] Figure 9 This is the partial three-dimensional structure schematic Figure 2 。

[0027] Figure 10 This is the three-dimensional structure schematic diagram of the cleaning mechanism of the present invention.

[0028] Figure 11 This is the partial three-dimensional structure schematic diagram of the cleaning mechanism of the present invention.

[0029] Figure 12 This is the three-dimensional structure schematic diagram of the centering mechanism of the present invention.

[0030] In the figure: 1 - base, 2 - housing, 21 - transparent window, 22 - infrared sensor, 3 - XY-axis moving platform, 4 - first cylinder, 41 - mounting bracket, 5 - rotary glue applicator, 51 - reduction motor, 52 - glue bucket, 53 - glue outlet nozzle, 54 - hollow sphere, 55 - glue outlet hole, 56 - rotating shaft, 57 - first hollow hemisphere, 58 - rubber tube, 59 - glue application head, 510 - second hollow hemisphere, 512 - rubber clamping ball, 513 - clamping groove, 514 - mounting block, 515 - drive motor, 516 - first transmission component, 61 - driven roller, 62 - electric roller, 63 - guide roller, 64 - pressure sensor, 65 - cleaning paper, 66 - pressing roller, 67 - connecting frame, 68 - rotating rod, 69 - pushing block, 610 - gear set, 611 - motor, 612 - second transmission component, 7 - first belt conveyor component, 71 - rotating shaft, 72 - belt pulley, 73 - conveyor belt, 74 - servo motor, 75 - fastening bolt, 8 - second belt conveyor component, 9 - slide bar, 10 - lifting plate, 11 - second cylinder, 12 - camera, 13 - third belt conveyor component, 14 - electric slide rail, 15 - plasma cleaner, 161 - first guide rail, 162 - second guide rail, 163 - L-shaped pushing block, 164 - first bi-directional screw motor, 165 - second bi-directional screw motor, 166 - L-shaped rubber block, 17 - third cylinder, 18 - electric suction cup. Detailed implementation manner

[0031] See Figures 1-11, A liquid crystal display edge sealing device with a pre-treatment function, including a base 1. In the middle of the top of the base 1, a housing 2 is connected. The bottom of the housing 2 is of an open design. Import and export openings for the liquid crystal display to enter and exit are provided on both the left and right sides of the housing 2. On the right side of the inner top of the housing 2, an XY-axis moving platform 3 is installed. A cylinder 1 4 is installed on the XY-axis moving platform 3. The XY-axis moving platform 3 can drive the cylinder 1 4 to move left and right and back and forth. The XY-axis moving platform 3 is a prior art and will not be elaborated here. A mounting bracket 41 is connected to the telescopic rod of the cylinder 1 4. A rotary glue applicator 5 is provided on the mounting bracket 41. On the upper side inside the base 1, there are two left and right belt conveying components 1 7. The belt conveying component 1 7 includes two left and right rotating shafts 71 rotatably connected to the upper side inside the base 1. Two front and rear belt pulleys 72 are slidably sleeved on the rotating shafts 71. A conveyor belt 73 for conveying the liquid crystal display is sleeved between the two corresponding left and right belt pulleys 72. A servo motor 74 is installed on the upper side inside the base 1. The output shaft of the servo motor 74 is connected to the left rotating shaft 71. Two front and rear fastening bolts 75 for locking the belt pulley 72 on the rotating shaft 71 are provided on the belt pulley 72. Loosening the fastening bolts 75 can release the locking of the belt pulley 72 to adjust the front and rear positions of the belt pulley 72, thereby adjusting the distance between the front and rear conveyor belts 73 to adapt to liquid crystal displays of different widths. Tightening the fastening bolts 75 can re-lock the belt pulley 72. In the middle inside the base 1, there are two front and rear groups of sliding rods 9 slidably connected. The number of each group of sliding rods 9 is two. The two sliding rods 9 in each group are arranged left and right. A lifting plate 10 is connected between the tops of the two groups of sliding rods 9. The lifting plate 10 is located between the two belt conveying components 1 7. A belt conveying component 2 8 is provided on the top of the lifting plate 10. In the middle of the bottom inside the base 1, a cylinder 2 11 for driving the lifting plate 10 to lift is installed. A camera 12 is installed on the top of the housing 2 directly above the lifting plate 10. An infrared sensor 22 is embedded in the top of the housing 2 to the right of the camera 12. On the left side inside the base 1, there is a belt conveying component 3 13 located below the left belt conveying component 1 7. The structures of the belt conveying component 2 8 and the belt conveying component 3 13 are the same as that of the belt conveying component 1 7. An electric slide rail 14 is installed on the bottom inside the housing 2 to the left of the camera 12. A plasma cleaner 15 for cleaning the liquid crystal display is installed on the slider of the electric slide rail 14. A cylinder 3 17 is installed on the right side of the bottom inside the base 1. The cylinder 3 17 is located directly below the XY-axis moving platform 3. An electric suction cup 18 is installed on the telescopic rod of the cylinder 3 17. The electric suction cup 18 is located between the front and rear conveyor belts 73 of the right belt conveying component 1 7. On both the front and rear sides of the housing 2, two left and right transparent windows 21 are embedded to facilitate the operator to view the cleaning and glue application conditions of the liquid crystal display. A cleaning mechanism is provided on the mounting bracket 41 for cleaning the glue remaining outside the glue application head 59 of the rotary glue applicator 5.

[0032] SeeFigures 4-8 , the rotary glue applicator 5 includes a reduction motor 51 installed on the right side of the mounting frame 41. A glue bucket 52 located in front of the mounting frame 41 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 bucket 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. A rotating shaft 56 is rotatably connected to the lower right part of the outer wall of the hollow sphere 54. A hollow hemisphere 57 is connected to the rotating shaft 56. The inner wall of the hollow hemisphere 57 is in close contact with the outer wall of the hollow sphere 54. Four glue tubes 58 are connected to the hollow hemisphere 57 at equal intervals along the circumferential direction. A glue application head 59 is threadedly connected to the glue tube 58. The shapes of the respective glue application heads 59 are different. A locking assembly for locking the hollow hemisphere 57 is provided on the upper part of the outer wall of the hollow sphere 54. The locking assembly includes a hollow hemisphere 510 connected to the upper part of the outer wall of the hollow sphere 54. The bottom of the hollow hemisphere 510 is in close contact with the top of the hollow hemisphere 57. Four rubber clamping balls 512 are connected to the bottom of the hollow hemisphere 510 at equal intervals along the circumferential direction. Four clamping grooves 513 matching the rubber clamping balls 512 are opened at equal intervals along the circumferential direction at the top of the hollow hemisphere 57. An installation block 514 is connected to the lower part of the outer wall of the glue bucket 52. A driving motor 515 is installed on the left side of the bottom of the installation block 514. The driving motor 515 is in transmission connection with the glue outlet nozzle 53 through a first transmission assembly 516. In a specific implementation, the first transmission assembly 516 can be a belt transmission assembly, a synchronous belt transmission assembly, a chain transmission assembly, a gear transmission assembly, etc.

[0033] See Figures 9-11 , the cleaning mechanism includes 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 for winding the cleaning paper 65 is provided on the left front side of the mounting frame 41 and to the left of the driven roller 61. Two upper and lower guide rollers 63 for guiding the cleaning paper 65 are rotatably arranged on the lower left side of the mounting frame 41. Two upper and lower pressure sensors 64 are installed on the lower left side of the mounting frame 41. The pressure sensors 64 are located on the right side of the guide rollers 63. A pressing roller 66 is rotatably arranged on the lower left side of the mounting frame 41 above the upper pressure sensor 64 for pressing the cleaning paper 65 against the pressure sensor 64 in close contact. A connecting frame 67 is connected to the lower left side of the mounting frame 41. The connecting frame 67 is located between the two upper and lower guide rollers 63. Two front and rear rotating rods 68 are rotatably connected to the connecting frame 67. A pushing block 69 is connected to the rotating rod 68. The two rotating rods 68 are in transmission connection through a gear set 610. The gear set 610 includes two gears respectively connected to the upper parts of the two rotating rods 68. The two gears are meshed. A motor 611 is installed on the lower left part of the connecting frame 67. The output shaft of the motor 611 is in transmission connection with the front rotating rod 68 through a second transmission assembly 612. In a specific implementation, the first transmission assembly 516 can be a belt transmission assembly, a synchronous belt transmission assembly, a chain transmission assembly, a gear transmission assembly, etc.

[0034] Connect the glue bucket 52 to an external glue delivery device through a hose. Use the left belt conveyor assembly 7 to convey the liquid crystal display screen to the right below the plasma cleaner 15. At the same time, control the electric slide rail 14 to drive the plasma cleaner 15 to move back and forth, performing uniform plasma cleaning on the edge surface of the liquid crystal display screen, effectively removing the dust particles and organic pollutants adsorbed on the surface of the liquid crystal display screen, improving the surface energy of the material, and enhancing the adhesion and sealing performance of the glue during the subsequent glue sealing process. The plasma cleaner 15 is a prior art and will not be elaborated here. Use the belt conveyor assembly 2 8 to convey the liquid crystal display screen to the right below the camera 12. Use the camera 12 to collect images of the appearance of the liquid crystal display screen and transmit the collected image information to the background terminal. The background terminal performs intelligent analysis and detection on the received images to determine whether there are appearance defects in the product. When the background terminal identifies that there are appearance defects in the liquid crystal display screen and determines it as a defective product, it sends a signal to the controller (not shown in the figure, and the controller is a prior art and will not be elaborated here). After receiving the signal, the controller first controls the cylinder 2 11 to drive the lifting plate 10 to drive the belt conveyor assembly 2 8 to move downward, thereby driving the defective product to descend to the same horizontal position as the belt conveyor assembly 3 13. Subsequently, the controller controls the belt conveyor assembly 2 8 and the belt conveyor assembly 3 13 to work, sending the defective product out to the left from the base 1, realizing the automatic sorting and classification of qualified and defective products. Then, the controller controls the cylinder 2 11 to drive the lifting plate 10 to drive the belt conveyor assembly 2 8 to move upward and reset.

[0035] The qualified liquid crystal display screen is conveyed to the right by the belt conveyor assembly 2 8 below the rotary glue applicator 5. When the infrared sensor 22 detects that the liquid crystal display screen reaches the predetermined position, the infrared sensor 22 sends a signal to the controller. After receiving the signal, the controller first controls the cylinder 1 4 to drive the mounting frame 41 to drive the rotary glue applicator 5 to move downward, so that the glue applicator head 59 moves downward to contact the edge of the liquid crystal display screen. Subsequently, the controller controls the glue delivery device to work, delivering the glue into the glue bucket 52. The glue flows into the hollow sphere 54 through the glue outlet nozzle 53, then passes through the glue tube 58 aligned with the glue outlet hole 55, and finally flows out from the glue applicator head 59 and is evenly coated on the edge of the liquid crystal display screen. During this process, the controller also controls the XY-axis moving platform 3 to work, driving the rotary glue applicator 5 to move along the edge of the liquid crystal display screen, evenly coating the glue on the edge of the liquid crystal display screen, and realizing the glue sealing process for the edge of the liquid crystal display screen.

[0036] When the glue - applying head 59 moves to the corner at the edge of the liquid - crystal display screen, control the driving motor 515 to work, so as to drive the first transmission component 516 to drive the glue - discharging nozzle 53 to rotate, thereby driving the hollow sphere 54 and its upper components to rotate, so that the glue - applying head 59 rotates along the corner at the edge of the liquid - crystal display screen, and evenly apply glue at the corner of the edge of the liquid - crystal display screen, ensuring the uniform glue - applying effect at the corner. If it is necessary to apply glue on the side surface of the edge of the liquid - crystal display screen, first control the electric suction cup 18 to suck the liquid - crystal display screen, and then control the third cylinder 17 to drive the electric suction cup 18 to drive the liquid - crystal display screen to move upward and disengage from the conveyor belt 73 on the first right - hand belt conveying component 7, so as to facilitate the glue - applying head 59 to evenly apply glue on the side surface of the edge of the liquid - crystal display screen. After the glue - applying is completed, control the third cylinder 17 to drive the electric suction cup 18 to drive the liquid - crystal display screen to move downward to the conveyor belt 73 of the first right - hand belt conveying component 7, then control the electric suction cup 18 to release the liquid - crystal display screen, and then convey the liquid - crystal display screen with glue applied through the first right - hand belt conveying component 7 to the next process to the right.

[0037] Before the glue - applying operation, first put the cleaning paper 65 wound into a cylinder on the driven roller 61, and adjust its path to bypass the pressing roller 66, the pressure sensor 64 and the guiding roller 63, and finally wind around the electric roller 62. After a glue - applying operation is completed, control the reduction motor 51 to drive the glue bucket 52 to rotate, thereby driving the glue - applying head 59 to rotate leftward until it contacts the cleaning paper 65 (see Figure 9 ), and the cleaning paper 65 presses the pressure sensor 64 accordingly. 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 - side rotating rod 68 to rotate, drives the rear - side rotating rod 68 to rotate through the gear set 610, so that the two pushing blocks 69 rotate rightward, and fold the front and rear edges of the cleaning paper 65 inward, so that the cleaning paper 65 fully wraps the glue - discharging part of the glue - applying head 59. Subsequently, the controller controls the electric roller 62 to rotate and wind up the cleaning paper 65, and effectively clean the glue remaining outside the glue - applying head 59 through the cleaning paper 65, ensuring the consistency and stability of each glue - applying operation, and improving the production efficiency and product quality. After the cleaning of the glue - applying head 59 is completed, control the reduction motor 51 to drive the glue bucket 52 to rotate in reverse, thereby driving the glue - applying head 59 to rotate rightward to 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 - side rotating rod 68 to rotate in reverse, so that the two pushing blocks 69 rotate leftward to reset. At the same time, control the electric roller 62 to turn off.

[0038] Driving the glue bucket 52 to rotate through the reduction motor 51 can adjust the angle of the glue applicator head 59, so that the glue application angle can be flexibly adjusted according to different glue application process requirements, enabling the glue to be coated more precisely on the edge of the liquid crystal display screen, and improving the sealing glue quality and adaptability. Rotating the hollow hemisphere one 57 can drive the rubber tube 58 to rotate, so as to switch the next rubber tube 58 to align with the glue outlet hole 55, thereby switching to the next glue applicator head 59 with a different shape for glue application operation to adapt to diverse glue application tasks. When the hollow hemisphere one 57 rotates, it squeezes the rubber clamping ball 512 to deform. When the card slot 513 on the hollow hemisphere one 57 rotates to align with the rubber clamping ball 512, the rubber clamping ball 512 returns to its original state to clamp the hollow hemisphere one 57 to prevent the hollow hemisphere one 57 from rotating randomly. Since the glue applicator head 59 is threadedly connected to the rubber tube 58, the glue applicator head 59 can be easily removed from the rubber tube 58 for replacement.

[0039] See Figure 2 and Figure 12 As shown, a centering mechanism for pushing the liquid crystal display screen to move to the center is provided inside the housing 2. The centering mechanism includes two guide rails one 161 respectively installed on the right side of the front and rear inner walls of the housing 2. The guide rails one 161 are located directly below the XY-axis moving platform 3. Two guide rails two 162 are slidably connected between the two guide rails one 161. A bidirectional lead screw motor one 164 is provided on the front guide rail one 161. The lead screw on the bidirectional lead screw motor one 164 is threadedly connected to the two guide rails two 162 to drive the two guide rails two 162 to approach and move away from each other. Two L-shaped push blocks 163 are slidably connected to the guide rails two 162. A bidirectional lead screw motor two 165 is provided on the guide rails two 162. The lead screw on the bidirectional lead screw motor two 165 is threadedly connected to the front and rear L-shaped push blocks 163 to drive the front and rear L-shaped push blocks 163 to approach and move away from each other. The L-shaped push blocks 163 are located above the conveyor belt 73 of the right belt conveyor assembly one 7. An L-shaped rubber block 166 for buffering and protecting the liquid crystal display screen is connected to the inner side surface of the L-shaped push block 163.

[0040] After the liquid crystal display screen is conveyed to the lower part of the rotary gluing machine 5 to the right, control the bidirectional lead screw motor 164 to drive the two guide rails 162 on the left and right to approach each other, thereby driving the L-shaped push blocks 163 on the left and right sides to approach each other. At the same time, control the bidirectional lead screw motor 165 to drive the front and rear L-shaped push blocks 163 to approach each other, so that the four L-shaped push blocks 163 can approach each other to push the liquid crystal display screen to move to the center, realizing the automatic correction of the liquid crystal display screen, avoiding gluing the liquid crystal display screen in a skewed state, thereby improving the gluing accuracy and product quality. After the correction of the liquid crystal display screen is completed, control the bidirectional lead screw motor 164 to drive the two guide rails 162 on the left and right to move away from each other, and control the bidirectional lead screw motor 165 to drive the front and rear L-shaped push blocks 163 to move away from each other, so that the four L-shaped push blocks 163 move away from each other to avoid the rotary gluing machine 5.

Claims

1. A liquid crystal display edge sealing and gluing device with a preprocessing function, comprising a base (1), a housing (2) is connected to the top of the base (1), an XY-axis moving platform (3) is installed on the inner top of the housing (2), a first cylinder (4) is installed on the XY-axis moving platform (3), an installation frame (41) is connected to the telescopic rod of the first cylinder (4), a rotary gluing device (5) is provided on the installation frame (41), two first belt conveying components (7) are provided on the upper side inside the base (1), and a second belt conveying component (8) is provided on the upper side inside the base (1) and located between the two first belt conveying components (7), characterized in that, The mounting bracket (41) is provided with a cleaning mechanism for cleaning the glue remaining on the outside of the glue applicator head (59) of the rotary glue applicator (5). The cleaning mechanism includes a driven roller (61) arranged on the mounting bracket (41) for supporting the cleaning paper (65). On one side of the mounting bracket (41) close to the driven roller (61), there is an electric roller (62) for winding the cleaning paper (65). The mounting bracket (41) is provided with two upper and lower guide rollers (63) for guiding the cleaning paper (65). Two upper and lower pressure sensors (64) are installed on the mounting bracket (41).

2. The edge sealing device for a liquid crystal display screen with a preprocessing function according to claim 1, wherein, The rotary glue applicator (5) includes a reduction motor (51) installed on the mounting bracket (41). A glue bucket (52) is connected to the output shaft of the reduction motor (51). The bottom of the glue bucket (52) is rotatably connected with a glue outlet nozzle (53). The bottom of the glue outlet nozzle (53) is connected with a hollow sphere (54). A glue outlet hole (55) is opened at the bottom of the hollow sphere (54). The lower part of the outer wall of the hollow sphere (54) is rotatably connected with a hollow hemisphere one (57) through a rotating shaft (56). Glue pipes (58) are evenly spaced circumferentially on the hollow hemisphere one (57). A glue applicator head (59) is threadedly connected to the glue pipe (58). A locking assembly for locking the hollow hemisphere one (57) is arranged on the upper part of the outer wall of the hollow sphere (54). An installation block (514) is connected to the outer wall of the glue bucket (52). A driving motor (515) is installed on the installation block (514). The driving motor (515) is in transmission connection with the glue outlet nozzle (53) through a transmission assembly one (516).

3. The edge sealing device for a liquid crystal display screen with a preprocessing function according to claim 2, characterized in that, A lifting plate (10) is slidably connected in the base (1) through a sliding rod (9). The lifting plate (10) is located between two belt conveying assemblies one (7). A belt conveying assembly two (8) is arranged on the top of the lifting plate (10). A cylinder two (11) for driving the lifting plate (10) to lift is installed at the inner bottom of the base (1). A camera (12) located directly above the lifting plate (10) is installed on the top of the housing (2). A belt conveying assembly three (13) is arranged in the base (1). The belt conveying assembly three (13) is located below one of the belt conveying assemblies one (7). An infrared sensor (22) is embedded and installed on one side of the top of the housing (2) close to the camera (12).

4. A liquid crystal display edge sealing device with a preprocessing function according to claim 3, characterized in that, An electric slide rail (14) is installed on the inner bottom of the housing (2) close to the camera (12). A plasma cleaner (15) for cleaning the liquid crystal display screen is installed on the slider of the electric slide rail (14).

5. The edge sealing device for a liquid crystal display screen with a preprocessing function according to claim 4, characterized in that, A centering mechanism for driving the liquid crystal display screen to move and center is provided in the housing (2), and the centering mechanism comprises two guide rails (161) installed in the housing (2), the guide rails (161) being located directly below the XY axis moving platform (3), two guide rails (162) being slidably connected between the two guide rails (161), one of the guide rails (161) being provided with a bidirectional screw motor (164) for driving the two guide rails (162) to move toward and away from each other, two L-shaped push blocks (163) being slidably connected to the guide rails (162), and a bidirectional screw motor (165) for driving the two L-shaped push blocks (163) thereon to move toward and away from each other is provided on the guide rails (162).

6. The edge sealing device for a liquid crystal display screen with a preprocessing function according to claim 5, wherein, A cylinder three (17) is installed at the bottom of the inner side of the base (1) and is located directly below the XY axis moving platform (3). An electric suction cup (18) is installed on the telescopic rod of the cylinder three (17).

7. A liquid crystal display edge sealing device with a preprocessing function according to claim 6, characterized in that, The locking assembly comprises 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 locking balls (512) at even intervals along the circumference; and the top of the first hollow hemisphere (57) is provided with locking grooves (513) matching the rubber locking balls (512) at even intervals along the circumference.

8. A liquid crystal display edge sealing device with a preprocessing function according to claim 7, characterized in that, The cleaning mechanism further comprises 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 pushing block (69) being connected to the rotating rods (68), the two rotating rods (68) being transmission-connected via a gear set (610), a motor (611) being mounted on the connecting frame (67), an output shaft of the motor (611) being transmission-connected to one of the rotating rods (68) via a second transmission assembly (612).

Images