LCD display screen backlight assembling machine

Abstract

The invention relates to the technical field of display screen assembling, and discloses an LCD display screen backlight assembling machine which comprises a first conveying belt, a second conveying belt is installed on one side of the first conveying belt, and an angle adjusting assembly used for double-angle film tearing and a film tearing assembly are installed at the top end of the first conveying belt. The tail end of the first conveying belt and the tail end of the second conveying belt are provided with attaching assemblies. According to the LCD screen backlight assembling machine, the double-corner film tearing function of a display screen is achieved, the LCD screen backlight assembling machine can adapt to display screens of different sizes to complete the film tearing action by means of the angle-adjustable first rotating frame and the angle-adjustable second rotating frame, the oblique double-corner film tearing design can enable the film tearing mechanism to make accurate contact with protective films at corners, and the film tearing effect is good. By means of the double-corner film tearing mode, the tearing missing probability is effectively reduced, the film tearing success rate is remarkably increased, and the situation that a follow-up display screen is judged to be a waste product due to the fact that the protective film is left is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of display screen assembly, in particular to an LCD display screen backlight assembly machine. Background Art

[0002] An LCD display, or liquid crystal display, is a device that uses the optical properties of liquid crystal materials to display images. Its core principle is to fill liquid crystal material between two parallel glass substrates, and control the arrangement of liquid crystal molecules by applying voltage to electrodes on the substrates, thereby changing the light penetration ability. Combined with components such as polarizers, light and dark contrast is formed, and finally the image is presented. LCD displays have the characteristics of low power consumption, light and thin size, and clear display effects. They are widely used in various electronic devices such as televisions, computer monitors, mobile phones, tablets, instruments and meters, and have become an extremely common application in modern display technology.

[0003] With the popularization of electronic devices and the continuous development of display technology, LCD displays have become one of the core components of various terminal devices due to their excellent display performance and wide applicability. The backlight module is a key part of the LCD display to achieve luminous display. Its assembly quality directly affects the brightness uniformity, color reproduction and overall service life of the screen. Therefore, the backlight assembly link occupies an important position in the production process of LCD displays.

[0004] The prior art publication number is CN117518563A, which provides an LCD display backlight module manufacturing device, including an LCD display backlight panel yielding assembly arm assembly, the bottom of the LCD display backlight panel yielding assembly arm assembly is provided with a backlight panel centering placement arm assembly, and the top of the LCD display backlight panel yielding assembly arm assembly is provided with a liquid crystal display centering placement arm assembly, the liquid crystal display centering placement arm assembly forms a positive and negative liquid crystal display centering placement arm structure on the top of the LCD display backlight panel yielding assembly arm assembly, the positive position is for facilitating the centering placement of the liquid crystal display, and the inverted position is for facilitating the facing and fitting assembly with the backlight panel, the backlight panel centering placement arm assembly forms a yielding backlight panel centering placement arm structure at the bottom of the LCD display backlight panel yielding assembly arm assembly, and the backlight panel centering placement arm assembly forms an outward placement panel action or a return to facing and fitting assembly action on the LCD display backlight panel yielding assembly arm assembly.

[0005] Although the above-mentioned existing technology allows the display screen and the backlight group to be assembled in the center, it has two shortcomings. First, there is a lack of a tearing structure for the protective film of the display screen panel. The front and back of the display screen panel are usually affixed with protective films to avoid friction damage during movement. The protective film on the side that is in contact with the backlight group needs to be torn off before assembly. Manual tearing and single-head mechanical tearing are prone to incomplete tearing. The residual protective film is sandwiched between the backlight group and the display screen panel, which will cause the finished product to be judged as scrap in subsequent inspections. Second, the frame pressing link after the display screen and the backlight group are assembled mostly relies on manual operation, which has the problems of slow speed and low efficiency.

[0006] It can be seen that an LCD display backlight assembly machine is needed to solve the problems mentioned in the above background technology, such as the lack of a reasonable display panel protective film tearing structure, which leads to incomplete film tearing and the frame pressing relying on manual labor and low efficiency. Summary of the Invention

[0007] The purpose of the present invention is to provide an LCD display backlight assembly machine to solve the problems raised in the above background technology.

[0008] In order to solve the above technical problems, the present invention provides the following technical solutions: an LCD display backlight assembly machine, comprising a first conveyor belt, a second conveyor belt installed on one side of the first conveyor belt, and an angle adjustment assembly and a film tearing assembly for double-angle film tearing installed on the top of the first conveyor belt, a laminating assembly provided at the tail ends of the first conveyor belt and the second conveyor belt, and a pressing frame assembly for pressing a frame and a backlight display installed on one side of the laminating assembly; The angle adjustment assembly includes a first rotating frame, and a first rotating shaft is connected to the bottom of one end of the first rotating frame, a first gear is connected to the bottom end of the first rotating shaft, and a second rotating shaft is sleeved on the outer side of the first rotating shaft, a second rotating frame is connected to the outer side of the second rotating shaft, and a second gear is connected to the bottom end of the second rotating shaft, the second gear and the first gear are respectively engaged with teeth at different heights, and the teeth are installed inside a movable moving frame; The film tearing assembly includes a lifting block, and a unwinding roller, a winding roller and a contact roller are installed on one side of the lifting block, and the outer sides of the unwinding roller, the winding roller and the contact roller are commonly connected to the tape, one side of the lifting block is connected to a reciprocating track, and an integrated block is movably provided on the reciprocating track, the front side of the integrated block is connected to a flip block and a clamp, and the rear side of the integrated block is connected to a flip gear, and one side of the end of the reciprocating track is connected to a tooth block meshing with the flip gear; The pressing frame assembly includes an outer shell, and an intermittently rotatable rotating cylinder is provided inside the outer shell, an adsorption surface is provided on the outer side of the rotating cylinder, an intermittently descending lifting frame and a pressing block are provided on the top of the rotating cylinder, and a material picking fork for picking up and placing materials back and forth is installed on one side of the rotating cylinder, and the material picking fork rotates and rises and falls between the adsorption surface and the bonding assembly.

[0009] Preferably, the interiors of the second rotating shaft and the second gear are both hollow, and the second rotating shaft and the second gear are both sleeved on the outside of the first rotating shaft, and the second gear is located above the first gear.

[0010] Preferably, a fixed frame is provided on the outside of the movable frame, and a telescopic rod is installed at one end of the movable frame, the telescopic rod passes through the fixed frame and extends to its outside, and reciprocating screws are provided inside the first rotating frame and the second rotating frame, and the number of the film tearing assemblies is two groups, which are respectively installed under the two groups of reciprocating screws.

[0011] Preferably, the film tearing assembly includes a moving block, and a telescopic cylinder is installed on the front side of the moving block, the output end of the telescopic cylinder is connected to the lifting block, the contact roller is located below between the unwinding roller and the winding roller, and a limiting groove is provided on the side of the reciprocating track away from one end of the tooth block, the integrated block includes a pin shaft, and a slider is connected to the outside of the pin shaft, the pin shaft passes through the slider and is connected to the flip gear, and one side of the slider is located on the outside of the pin shaft and is connected to a circular block matching the limiting groove, and the end of the pin shaft away from the flip gear passes through the flip block.

[0012] Preferably, the fitting assembly includes a fixed storage block, and the bottom end of the fixed storage block is hinged with a first short link, the bottom end of the first short link is hinged with a first long link, and the rear side of the first long link is hinged with a second long link, and one end of the second long link is hinged to the second short link, the second short link is hinged below the flip storage block, and a driving member is installed on the rear side of the first short link.

[0013] Preferably, a driving motor is installed on one side above the outer shell, and the output end of the driving motor is connected to the upper transmission gear, the bottom end of the upper transmission gear is engaged with the lower transmission gear, and the rear side of the lower transmission gear is connected to a pin shaft through an axis, a spacer block is provided below the pin shaft, and multiple groups of spacer grooves are spaced apart inside the spacer block, the pin shaft is in contact with the spacer groove, and one side of the spacer block is connected to a rotating cylinder through an axis.

[0014] Preferably, one side of the shell is connected to a rotating shaft, and a material picking fork is passed through the middle position of the rotating shaft, the bottom end of the material picking fork is connected to a suction cup, and one side of the material picking fork is hinged with a hinge, one end of the hinge is connected to an extension block, and the extension block is passed through a penetrating rod, one side of the penetrating rod is connected to a crankshaft, and one side of the crankshaft is connected to a protrusion, and the protrusion is located inside the lifting frame.

[0015] Preferably, a pressure block is connected to the bottom end of the lifting frame, a transverse axis is provided inside the protrusion, one end of the transverse axis is connected to the protrusion, and the other end of the transverse axis is connected to the upper transmission gear.

[0016] Compared with the prior art, the present invention has the following beneficial effects: First, the present invention realizes the double-corner film tearing function of the display screen by setting the first conveyor belt, the second conveyor belt, the angle adjustment component, the film tearing component, and the bonding component. With the help of the first rotating frame and the second rotating frame with adjustable angles, it can adapt to display screens of different sizes to complete the film tearing action. The inclined double-corner film tearing design allows the film tearing mechanism to accurately contact the protective film at the corners, thereby tearing the film from the corners to the greatest extent. This double-corner film tearing method effectively reduces the probability of missing tearing, significantly improves the success rate of film tearing, and reduces the situation where the subsequent display screen is judged as waste due to residual protective film.

[0017] Secondly, the present invention realizes the automatic pressing operation between the frame and the assembled display screen through the setting of the frame pressing component. Compared with the traditional manual pressing method, the frame pressing component integrates multiple practical functions. It has the ability to accurately pick up and put materials, and can automatically grab the display screen and frame to be pressed and transfer them to the designated work station. Through the built-in intermittent matching mechanism, the operation sequence can be adjusted according to the previous assembly rhythm to ensure the connection between the pressing process and the overall production line. At the same time, with the help of accurate alignment and pressing structure, the relative position accuracy of the two during the pressing process is guaranteed. This integrated design greatly reduces the manual intervention link and avoids the positioning deviation and uneven pressure problems that may occur in manual operation. At the same time, with an orderly and coherent automated operation mode, the pressing efficiency of the frame and the display screen is significantly improved, providing reliable guarantee for the high-speed operation of the production line. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the connection structure between the angle adjustment component and the film tearing component of the present invention; Figure 3 This is a structural breakdown diagram of the angle adjustment component and the film tearing component of the present invention; Figure 4 For the present invention Figure 3 A magnified view of the structure at point A; Figure 5 This is a disassembled diagram of the film tearing assembly structure of the present invention; Figure 6 This is a schematic diagram of the partial structure of the film tearing assembly of the present invention; Figure 7 This is a schematic diagram of the connection structure of the laminating components of the present invention; Figure 8This is a disassembled diagram of the bonding component structure of the present invention; Figure 9 This is a schematic diagram of the connection structure of the press frame assembly of the present invention; Figure 10 This is a disassembled diagram of the frame assembly structure of the present invention.

[0019] Among them: 1. First transport belt; 2. Second transport belt; 3. Angle adjustment assembly; 301. First rotating frame; 302. First rotating shaft; 303. First gear; 304. Second rotating frame; 305. Second rotating shaft; 306. Second gear; 307. Moving frame; 308. Tooth; 309. Telescopic rod; 310. Fixed frame; 311. Reciprocating screw; 4. Film tearing assembly; 401. Moving block; 402. Telescopic cylinder; 403. Lifting block; 404. Unwinding roller; 405. Rewinding roller; 406. Contact roller; 407. Reciprocating track; 408. Limiting groove; 409. Tooth block; 410. Integrated block; 411. Flip block; 412. Clamp; 413. Flip Rotating gear; 5. Fitting assembly; 501. Fixed storage block; 502. Flipping storage block; 503. First short connecting rod; 504. First long connecting rod; 505. Second long connecting rod; 506. Second short connecting rod; 507. Driving member; 6. Pressing frame assembly; 601. Housing; 602. Rotating shaft; 603. Material picking fork; 604. Suction cup; 605. Hinge; 606. Extension block; 607. Through rod; 608. Crankshaft; 609. Bump; 610. Lifting frame; 611. Pressing block; 612. Upper transmission gear; 613. Lower transmission gear; 614. Pin; 615. Spacer block; 616. Spacer groove; 617. Rotating cylinder; 618. Adsorption surface; 619. Driving motor. DETAILED DESCRIPTION

[0020] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0021] See also Figures 1-8, an LCD display backlight assembly machine, comprising a first conveyor belt 1, a second conveyor belt 2 is installed on one side of the first conveyor belt 1, and an angle adjustment component 3 and a film tearing component 4 for double-angle film tearing are installed on the top of the first conveyor belt 1, and a laminating component 5 is provided at the tail ends of the first conveyor belt 1 and the second conveyor belt 2, the angle adjustment component 3 comprises a first rotating frame 301, and a first rotating shaft 302 is connected to the bottom of one end of the first rotating frame 301, a first gear 303 is connected to the bottom end of the first rotating shaft 302, and a second rotating shaft 305 is sleeved on the outer side of the first rotating shaft 302, a second rotating frame 304 is connected to the outer side of the second rotating shaft 305, and a second gear 306 is connected to the bottom end of the second rotating shaft 305, and the second gear 30 6 and the first gear 303 are respectively engaged with teeth 308 at different heights, and the teeth 308 are installed inside the movable moving frame 307, the film tearing assembly 4 includes a lifting block 403, and a unwinding roller 404, a winding roller 405 and a contact roller 406 are installed on one side of the lifting block 403, and the outer sides of the unwinding roller 404, the winding roller 405 and the contact roller 406 are commonly connected with a tape, one side of the lifting block 403 is connected to a reciprocating track 407, and an integrated block 410 is movably provided on the reciprocating track 407, the front side of the integrated block 410 is connected to a flip block 411 and a clamp 412, and the rear side of the integrated block 410 is connected to a flip gear 413, and one side of the end of the reciprocating track 407 is connected to a tooth block 409 engaged with the flip gear 413.

[0022] In this embodiment, the first conveyor belt 1 and the second conveyor belt 2 have the same structure, wherein the first conveyor belt 1 is used to transport the display screen, and the second conveyor belt 2 is used to transport the backlight group. The first conveyor belt 1 and the second conveyor belt 2 run synchronously and transport the display screen and the backlight group at the same time, wherein protective films are provided on both sides of the display screen. The film on the side in contact with the backlight group needs to be torn off, and the film on the other side will not be torn off until the assembly process is completed. The backlight group includes an overall structure of optical elements such as a light guide plate, a diffuser, and a prism sheet, which are integrated into a backlight group through multiple processes and are a plate-like structure. In the first conveyor belt 1 and the second conveyor belt 2, when the display screen moves to the bottom of the angle adjustment component 3, it will stay for a period of time to provide a film tearing operation. At the same time, since the display screen is generally a rectangular structure, the protective film is also a rectangular structure. The device sets a tearing structure at the two corners of the rectangular protective film to tear the two corners of the protective film synchronously, thereby avoiding the possibility of missing tearing, and because the corners of the rectangular protective film are easiest to tear, the tilted tearing mechanism can contact the film at the corners to the greatest extent, thereby increasing the possibility of successful tearing. A limiting mechanism can be installed on both sides of the first conveyor belt 1 and the second conveyor belt 2 to limit the display screen and backlight group transported therein to move according to a predetermined trajectory without offset, and also allows the display screen and backlight group to smoothly enter the limiting grooves in the fixed storage block 501 and the flip storage block 502 at the end of the transportation of the first conveyor belt 1 and the second conveyor belt 2.

[0023] Specifically, the second rotating shaft 305 and the second gear 306 are both hollow, and are both sleeved on the outside of the first rotating shaft 302 . The second gear 306 is located above the first gear 303 .

[0024] In this embodiment, the first rotating frame 301 and the second rotating frame 304 face two different directions, so that the film tearing assembly 4 installed at the bottom of the first rotating frame 301 and the second rotating frame 304 extend in different directions. When the display screen changes batch size, the orientation of the first rotating frame 301 and the second rotating frame 304 can be adjusted according to the size of the display screen. The orientation of the first rotating frame 301 and the second rotating frame 304 is the orientation of the line connecting the two corners and the center point of the rectangular display screen, and the first rotating shaft 302 and the second rotating shaft 305 are located at the center of the rectangular display screen. When the size of the display screen changes, the angle of the line connecting the corner and the center point will change. The adjusted first rotating frame 301 and the second rotating frame 304 can match display screens of different sizes. A keyway can be provided between the two socketed rotating shafts to avoid slipping, and a retaining ring can be provided axially to avoid offset during rotation.

[0025] Specifically, a fixed frame 310 is provided on the outer side of the moving frame 307, and a telescopic rod 309 is installed at one end of the moving frame 307. The telescopic rod 309 penetrates through the fixed frame 310 and extends to its outer side. Reciprocating lead screws 311 are provided inside both the first rotating frame 301 and the second rotating frame 304. The number of film tearing assemblies 4 is two groups, which are respectively installed below the two groups of reciprocating lead screws 311.

[0026] In this embodiment, the teeth 308 are respectively arranged on both sides inside the moving frame 307, but they are not on the same horizontal line, but are arranged one above the other. Such an arrangement can cooperate with the combined first gear 303 and second gear 306. Since the length of the first rotating shaft 302 is greater than that of the second rotating shaft 305, when the second rotating shaft 305 is sleeved outside the first rotating shaft 302, the second gear 306 is located above the first gear 303 at this time. When placing parts such as the first gear 303 and the second gear 306 inside the moving frame 307, the second gear 306 located above will mesh with one group of teeth 308, and the first gear 303 located below will mesh with the other group of teeth 308. In this way, when moving the moving frame 307, the teeth 308 can drive the second gear 306 and the first gear 303 to rotate simultaneously, thereby causing the first rotating frame 301 and the second rotating frame 304 to rotate simultaneously. In the moving frame 307, the moving frame 307 is a hollow rectangular structure without closures at both the top and the bottom. The outer side of the moving frame 307 is connected with a limiting block, and a limiting groove matching the limiting block is provided inside the fixed frame 310. Through the cooperation of the limiting block and the limiting groove, the moving frame 307 can move better inside the fixed frame 310. The fixed frame 310 is in an inverted "冂" - shaped structure. A fixed frame is provided at the place where the angle - adjusting assembly 3 is installed above the first conveyor belt 1, and the fixed frame 310 is fixedly arranged inside the fixed frame, remaining stationary. The telescopic rod 309 can be an electric telescopic rod, which can drive the moving frame 307 to move after being started. The reciprocating lead screw 311 includes a long housing, a lead screw, and a limiting rod. The lead screw and the limiting rod are installed inside the long housing. The long housing is located inside the first rotating frame 301 and the second rotating frame 304 and even penetrates through them. The moving block 401 is penetrated by the lead screw and the limiting rod. A threaded hole matching the lead screw is provided on the moving block 401, and a round hole matching the limiting rod is provided beside the threaded hole. When the reciprocating lead screw 311 is started, the moving block 401 will move along the axial direction of the lead screw. The two groups of reciprocating lead screws 311 in the first rotating frame 301 and the second rotating frame 304 can be controlled separately. In this way, the moving distances of the two groups of film tearing assemblies 4 can be made different respectively. Even when facing a display screen with an irregular shape, the device can still tear the films at two corners of an irregular shape within a certain size range.

[0027] Specifically, the film tearing assembly 4 includes a moving block 401, and a telescopic cylinder 402 is installed on the front side of the moving block 401, the output end of the telescopic cylinder 402 is connected to the lifting block 403, the contact roller 406 is located below between the unwinding roller 404 and the winding roller 405, and a limiting groove 408 is provided on the side of the reciprocating track 407 away from the tooth block 409. The integrated block 410 includes a pin shaft, and a slider is connected to the outside of the pin shaft. The pin shaft passes through the slider and is connected to the flip gear 413, and one side of the slider is located on the outside of the pin shaft and is connected to a circular block matching the limiting groove 408, and the end of the pin shaft away from the flip gear 413 passes through the flip block 411.

[0028] In this embodiment, the telescopic cylinder 402 can be an electric cylinder, which will drive the lifting block 403 to rise or fall after being started. The rear side of the lifting block 403 is connected to a limit block, and a limit groove matching the limit block is provided on one side below the moving block 401. When the lifting block 403 is lifted or lowered, the cooperation between the limit block and the limit groove can move more smoothly on one side of the moving block 401. The surfaces of the unwinding roller 404, the winding roller 405 and the contact roller 406 are wrapped with tape, and the tape is a low-viscosity electrostatic tape. The tape extends from the outside of the unwinding roller 404 to the outside of the contact roller 406, and is then wound up by the winding roller 405. The tape is used to contact the protective film, and the tape will After one corner of the protective film is stuck, it is convenient to tear off the entire protective film. Ratchet pawl mechanisms are installed on the rear sides of the unwinding roller 404 and the winding roller 405. In this way, no matter the resistance generated when the tape contacts the protective film, or the resistance when the clamp 412 clamps the protective film to separate it from the tape, the unwinding roller 404 and the winding roller 405 will not rotate passively. A tension adjustment mechanism can also be set between the unwinding roller 404 and the winding roller 405 to adjust the tension. A motor is installed on the rear side of the unwinding roller 404 and the winding roller 405. Only after starting will it drive the unwinding roller 404 and the winding roller 405 to rotate actively. The unwinding roller 404 releases the new tape, and the winding roller 405 5 The waste tape that has come into contact with the protective film is wound up. The contact roller 406 is located at the lowest point of the entire film tearing assembly 4, so it first comes into contact with the protective film when it descends. The surface of the contact roller is coated with elastic material such as silicone, which enhances the adhesion of the tape by pressing down. A telescopic rod is installed on the rear side of the integrated block 410. After starting, it will push the integrated block 410 to move back and forth on the reciprocating track 407. Moreover, because of the addition of the tooth block 409 and the flip gear 413, the clamp 412 will rotate when following the reciprocating movement of the integrated block 410. This rotation action cooperates with the clamping to clamp the protective film and then rotate it so that the torn protective film can be separated from the display screen. The separation is more thorough, and the torn protective film can be thrown aside and thrown to a fixed collection point such as a side waste bin to prevent the torn protective film from affecting the next set of display screens. Clamps 412 are provided on both sides of the flip block 411. The two sets of clamps 412 alternately clamp the protective film adhered by the tape. A dust collection device can be provided on the side of the first transport belt 1, such as in the side waste bin, to facilitate the collection of the torn protective film. When the integrated block 410 moves to one side of the limit slot 408, the circular block will first enter the limit slot 408 to ensure that the flip block 411 will not flip when the reciprocating track 407 is away from one end of the tooth block 409.

[0029] Specifically, the bonding component 5 includes a fixed storage block 501, and the bottom end of the fixed storage block 501 is hinged with a first short link 503, the bottom end of the first short link 503 is hinged with a first long link 504, and the rear side of the first long link 504 is hinged with a second long link 505, and one end of the second long link 505 is hinged to the second short link 506, the second short link 506 is hinged below the flip storage block 502, and a driving member 507 is installed on the rear side of the first short link 503.

[0030] In this embodiment, the fixed storage block 501 is located at the end of the first conveyor belt 1, and the flip storage block 502 is located at the end of the second conveyor belt 2. The fixed storage block 501 is used to receive the display screen transported on the first conveyor belt 1, and the flip storage block 502 is used to receive the backlight group transported on the second conveyor belt 2. Corresponding shallow grooves are provided on the fixed storage block 501 and the flip storage block 502 for limiting the display screen and the backlight group. The fixed storage block 501 and the flip storage block 502 are both tilted and arranged at the end of the belt conveyor. In this way, gravity can be used to a certain extent to ensure that the display screen and the backlight group are correctly located on the shallow groove. The rotating storage block 502 finally needs to be flipped and attached to the fixed storage block 501, and the display screen and backlight group in the shallow groove will also be attached together. Since the shallow groove is shallow, it will not affect the installation of the display screen and the backlight group when attaching. Since the flip storage block 502 needs to be flipped, the shallow groove can restrict the backlight group to a certain extent during flipping, so that it cannot fall or move. In addition, a negative pressure suction cup or a mechanical clamp can be installed inside the fixed storage block 501 and the flip storage block 502, on the inner side of the shallow groove, so that the display screen and the backlight group on the fixed storage block 501 and the flip storage block 502 can be fixed. The clamping can avoid movement during the flipping process to the greatest extent. Similarly, this clamping is mainly to not affect the fitting process. The driving part 507 is integrated with a driving motor and a worm gear group. The driving motor drives the worm gear group to rotate, and then drives the first short link 503 to rotate. The cooperation of the first long link 504, the second long link 505 and the second short link 506 makes the flip storage block 502 flip. A mounting plate is fixed at the bottom end of the fixed storage block 501 and the flip storage block 502. Two hinged seats are provided on the mounting plate. One of the hinged seats in the fixed storage block 501 is connected to the first short link 503, and the other hinged seat is connected to the first short link 503. The connecting seat is connected to one end of the second long connecting rod 505, and one of the hinged seats in the flip storage block 502 is connected to the second long connecting rod 505, and the other hinged seat is connected to the second short connecting rod 506. The second long connecting rod 505 and the first long connecting rod 504 are hinged at the middle position. In order to cooperate with the flipping, the first short connecting rod 503, the first long connecting rod 504, the second long connecting rod 505 and the second short connecting rod 506 all adopt a metal structure, which is not easy to deform and has a certain pressure resistance. In order to maintain the flipping balance, the connecting rod group can be set to two groups, and the two groups of connecting rods are synchronously controlled to rotate and respectively connect the two ends of the fixed storage block 501 and the flip storage block 502.

[0031] See also Figure 9-10, an LCD display backlight assembly machine, a pressing frame assembly 6 for pressing the frame and the backlight display is installed on one side of the bonding component 5, the pressing frame assembly 6 includes a shell 601, and a rotating cylinder 617 that can rotate intermittently is provided inside the shell 601, an adsorption surface 618 is provided on the outside of the rotating cylinder 617, and a lifting frame 610 and a pressing block 611 that are intermittently lowered are provided on the top of the rotating cylinder 617, and a material fork 603 for picking up and placing materials back and forth is installed on one side of the rotating cylinder 617, and the material fork 603 rotates and rises and falls between the adsorption surface 618 and the bonding component 5.

[0032] In this embodiment, a controller is installed in the device, and the controller is electrically connected to the electronic components in the device to facilitate direct control. Belt conveyors are set at the openings on both sides of the shell 601. One group is responsible for loading the frame, and the other group is responsible for unloading the finished products after pressing. Loading and unloading robots are installed at the ends of the two groups of belt conveyors. The structure can be the same as the rotating shaft 602, material fork 603, and suction cup 604 in this device, and other mature robot equipment can also be used. In this embodiment, the pressed frame pressed with the assembled display screen is an internal hollow rectangular structure that matches the display screen.

[0033] Specifically, a driving motor 619 is installed on one side above the outer shell 601, and the output end of the driving motor 619 is connected to the upper transmission gear 612, the bottom end of the upper transmission gear 612 is engaged with the lower transmission gear 613, and the rear side of the lower transmission gear 613 is connected to the pin shaft 614 through an axis, a spacer block 615 is provided below the pin shaft 614, and a plurality of groups of spacer grooves 616 are spaced apart inside the spacer block 615, the pin shaft 614 is in contact with the spacer grooves 616, and one side of the spacer block 615 is connected to the rotating cylinder 617 through an axis.

[0034] In this embodiment, the lifting frame 610, the rotating cylinder 617 and the rotating shaft 602 are all integrated into the interior of the housing 601, and the upper transmission gear 612, the lower transmission gear 613, the spacer block 615 and other parts are arranged on the outer side of the housing 601, and the extension block 606, the through rod 607, the crankshaft 608 and the protrusion 609 are arranged on the other side of the housing 601. As the upper transmission gear 612 rotates, the lower transmission gear 613 meshing with it will also rotate, and the lower transmission gear 613 will drive the pin 614 to rotate. Every time the pin 614 rotates one circle, it will drive the spacer block 615 to rotate through the spacer groove 616, so that the spacer block 615 drives the rotating cylinder 617 to rotate. In this way, The rotating cylinder 617 rotates intermittently. The cross-section of the rotating cylinder 617 is a polygonal structure. The adsorption surfaces 618 are equidistantly arranged. The rotating cylinder 617 is externally connected to a vacuum generator, and negative pressure is introduced through a hollow shaft. The frame can be adsorbed on one side through the ventilation holes opened on the surface. The fixed frame is moved from the conveyor to the rotating cylinder 617 and will be firmly located on the adsorption surface 618. When the suction cup 604 transports the assembled display screen and panel to one side of the rotating cylinder 617, it is actually transported to the inside of the frame and is also adsorbed to achieve the purpose of positioning. When the frame and the display screen panel are transported to the bottom of the pressing block 611, they will be pressed together by the pressing block 611, and then the two will be engaged to form a fixed structure.

[0035] Specifically, one side of the shell 601 is connected to a rotating shaft 602, and a material picking fork 603 passes through the middle position of the rotating shaft 602, the bottom end of the material picking fork 603 is connected to a suction cup 604, and one side of the material picking fork 603 is hinged with a hinge 605, one end of the hinge 605 is connected to an extension block 606, and the extension block 606 is penetrated by a penetrating rod 607, one side of the penetrating rod 607 is connected to a crankshaft 608, and one side of the crankshaft 608 is connected to a protrusion 609, and the protrusion 609 is located inside the lifting frame 610.

[0036] In this embodiment, the rotating shaft 602 is located at the opening on one side of the outer shell 601 and is rotatably connected to the outer shell 601. The material taking fork 603 includes a fork part and a rod part. The fork part is in a "冂" - shaped structure, and the rod part is connected to the middle position at the top. The rod part penetrates through the rotating shaft 602 and extends to its outside. The suction cups 604 are arranged at the two feet of the fork part. This structure enables the suction cups 604 to move back and forth between the top of the fixed storage block 501 and one side of the rotating cylinder 617. And because the rod part of the material taking fork 603 penetrates through the rotating shaft 602 and can move inside it, the material taking fork 603 can not only rotate following the rotating shaft 602 but also move up and down. Thus, it can meet the actions of the suction cups 604 extending for material taking and extending for material discharging. The hinge member 605 includes two hinge parts and a central rod part penetrating through the two hinge parts. The two hinge parts are respectively hinged to the fork part of the material taking fork 603. The central rod part is used to connect the two hinge parts and penetrates through the outer shell 601 and extends to its outside. One end of the central rod part is connected to the extension block 606. So when the hinge member 605 drives the material taking fork 603 to rotate for loading and unloading, the extension block 606 makes a reciprocating swinging motion. The end of the extension block 606 away from the hinge member 605 is penetrated by the penetrating rod 607, and the penetration point is hinged to the penetrating rod 607. The crankshaft 608 drives the penetrating rod 607 to swing. The crankshaft 608 and the convex block 609 rotate simultaneously. When the convex block 609 rotates, it drives the lifting frame 610 to move up and down. Because when the convex part of the convex block 609 contacts the inner top end of the lifting frame 610, it will drive the lifting frame 610 to rise inside the outer shell 601, and when the convex part of the convex block 609 does not contact the lifting frame 610, the lifting frame 610 will descend under the action of gravity. Repeating this up - and - down movement, the pressing block 611 installed below contacts the frame body and the assembled display panel, and uses pressure to make them snap together, thus completing the pressing work. The outer side of the lifting frame 610 is provided with limiting blocks, and limiting grooves matching the limiting blocks are opened on both sides of the inner wall of the outer shell 601. The lifting frame 610 can move up and down more smoothly inside the outer shell 601 through the cooperation of the limiting blocks and the limiting grooves. The pressing block 611 matches the structure size of the frame border. The pressing surface can be set with a flexible material, such as rubber, and a pressure sensor is integrated to prevent over - pressure and avoid damaging the display screen due to violent pressing.

[0037] Specifically, a pressing block 611 is connected to the bottom end of the lifting frame 610. A horizontal shaft is arranged inside the convex block 609, and one end of the horizontal shaft is connected to the convex block 609, and the other end of the horizontal shaft is connected to the upper transmission gear 612.

[0038] In this embodiment, after the drive motor 619 is started, it will drive the upper transmission gear 612 to rotate. The upper transmission gear 612 drives the protrusion 609 to rotate through the horizontal axis, so that the lifting frame 610 can be lifted and lowered. It will also drive the crankshaft 608 and the through rod 607 to rotate through the horizontal axis, thereby making the material fork 603 move back and forth between the fixed storage block 501 and the rotating cylinder 617. The mechanism includes the action of taking and releasing materials, the action of lifting and pressing, and the intermittent rotation of the receiving surface to move the workstation. These actions are driven by a drive motor 619. The drive motor 619 reduces the use of the driving source and enhances the continuity between the equipment actions. In this device, the sides of the regular polygonal rotating cylinder 617 match the number of extension blocks 606.

[0039] When in use, it is necessary to connect an external power supply, which provides power to the device so that the device can operate normally. First, the display screen and the backlight group are placed on the first conveyor belt 1 and the second conveyor belt 2 for transportation respectively. When the display screen reaches the bottom of the angle adjustment component 3, the film tearing component 4 located under the first rotating frame 301 and the second rotating frame 304 can be started, so that the telescopic cylinder 402 drives the lifting block 403 to descend as a whole. When the adhesive tape on the outside of the contact roller 406 reaches the corner of the display screen, the descending action makes the adhesive tape contact with the protective film on the display screen. As the telescopic cylinder 402 drives the lifting block 403 to rise, the adhesive tape will also stick to the protective film at the corner and move up, controlling the movement of the integrated block 410 so that the integrated block 410 drives the flipping gear 413 and the flipping block 411 to move together to one end close to the lifting block 403. When the flipping gear 413 reaches one end of the reciprocating track 407, it will rotate due to contact with the tooth block 409, and the rotation of the flipping gear 413 drives the flipping The rotating block 411 rotates, thereby driving the flip block 411 to flip, so that one set of clamps 412 flips to the side of the protective film adhered by the tape, and the clamp 412 clamps the protective film, and starts the reciprocating screw rod 311 under the first rotating frame 301 and the second rotating frame 304, so that it drives the entire tearing assembly 4 to move, and the clamped protective film will not be separated even in the movement process. The process of movement of the two tearing assemblies 4 is the process of tearing off the protective film on the display screen. When the two tearing assemblies 4 move to one end of the corresponding reciprocating screw rod 311, the integrated block 410 drives the clamp 412 to move away, and when the flip gear 413 leaves one end of the reciprocating track 407, it will rotate again due to engagement with the tooth block 409. This rotation action makes the clamped film completely separate from the display screen, and then drives the clamped film to move to the end away from the lifting block 403 to release the clamp, and the protective film is collected by the dust collection equipment. The display screen film tearing is completed, and wait for a group of display screens to reach the bottom of the angle adjustment assembly 3; When the display screen and the backlight assembly reach the end of the transport belt, they will naturally enter the interior of the fixed storage block 501 and the flip storage block 502, and the driving member 507 will be started, so that the driving member 507 drives the first short link 503 to rotate, and the first long link 504, the second long link 505 and the second short link 506 rotate in coordination, so that the flip storage block 502 rotates to the top of the fixed storage block 501 until they fit together, and the display screen and the backlight assembly inside it also fit together, completing the assembly. Then the flip storage block 502 is opened, and the assembled display panel waits for the suction and movement of the suction cup 604. The transport belt located below the bonding component 5 transports the frame. When it reaches the side of the shell 601, it will be loaded onto the rotating cylinder 617 and fixed on the adsorption surface 618. The started driving motor 619 drives the upper transmission gear 612 to rotate, and the upper transmission gear 612 drives the lower transmission gear 613 and the protrusion 609 to rotate. The lower transmission gear 613 drives the pin shaft 614 to rotate. Every time the pin shaft 614 rotates one circle, it will dial a spacer block 615 to rotate. The spacer block 615 drives the rotating cylinder 617 to rotate, so that the adsorption surface 618 at the loading position rotates to the side close to the fixed storage block 501. The frame is also located on the side close to the fixed storage block 501. When the upper transmission gear 612 rotates, it will drive the protrusion 609 and the crankshaft 608 to rotate through the shaft. 08 drives the through rod 607 to rotate, so that the through rod 607 drives the extension block 606 to swing back and forth, and the extension block 606 drives the picking fork 603 to swing back and forth through the hinge 605, so that the picking fork 603 moves back and forth above the fixed storage block 501 and the side of the adsorption surface 618. The suction cup 604 adsorbs the display screen on the fixed storage block 501 and picks up the material, and transports it to the side of the adsorption surface 618, inside the frame. Then, as the rotating cylinder 617 continues to rotate, the frame and the display screen are located directly below the lifting frame 610. The lifting frame 610 is driven to rise and fall by the rotating protrusion 609. Every time it descends, the frame and the display screen will be pressed together to form them. As the rotating cylinder 617 continues to rotate, the assembled finished product will be rotated to the unloading side, and after the material is taken, the unloading is completed.

[0040] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the present application. The scope of this application is defined by the appended claims and their equivalents.

Claims

1. An LCD display backlight assembly machine, comprising a first transport belt (1), characterized in that: A second transport belt (2) is installed on one side of the first transport belt (1), and an angle adjustment component (3) and a film tearing component (4) for double-angle film tearing are installed on the top of the first transport belt (1), and a laminating component (5) is provided at the tail end of the first transport belt (1) and the second transport belt (2), and a pressing frame component (6) for pressing a frame and a backlight display screen is installed on one side of the laminating component (5); The angle adjustment assembly (3) includes a first rotating frame (301), and a first rotating shaft (302) is connected below one end of the first rotating frame (301), a first gear (303) is connected to the bottom end of the first rotating shaft (302), and a second rotating shaft (305) is sleeved on the outer side of the first rotating shaft (302), a second rotating frame (304) is connected to the outer side of the second rotating shaft (305), and a second gear (306) is connected to the bottom end of the second rotating shaft (305), the second gear (306) and the first gear (303) are respectively engaged with teeth (308) of different heights, and the teeth (308) are installed inside a movable moving frame (307); The film tearing assembly (4) includes a lifting block (403), and a reeling roller (404), a reeling roller (405) and a contact roller (406) are installed on one side of the lifting block (403), and the outer sides of the reeling roller (404), the reeling roller (405) and the contact roller (406) are commonly connected to a tape, and one side of the lifting block (403) is connected to a reciprocating track (407), and an integrated block (410) is movably provided on the reciprocating track (407), and the front side of the integrated block (410) is connected to a flip block (411) and a clamp (412), and the rear side of the integrated block (410) is connected to a flip gear (413), and one side of the end of the reciprocating track (407) is connected to a tooth block (409) meshing with the flip gear (413); The pressing frame assembly (6) includes a shell (601), and an intermittently rotatable rotating cylinder (617) is provided inside the shell (601), an adsorption surface (618) is provided on the outside of the rotating cylinder (617), and an intermittently descending lifting frame (610) and a pressing block (611) are provided at the top of the rotating cylinder (617), and a material picking fork (603) for picking up and putting materials back and forth is installed on one side of the rotating cylinder (617), and the material picking fork (603) rotates and rises between the adsorption surface (618) and the bonding assembly (5).

2. The LCD display backlight assembly machine according to claim 1, characterized in that: The interiors of the second rotating shaft (305) and the second gear (306) are both hollow, and the second rotating shaft (305) and the second gear (306) are both sleeved on the outside of the first rotating shaft (302), and the second gear (306) is located above the first gear (303).

3. The LCD display backlight assembly machine according to claim 1, characterized in that: A fixed frame (310) is provided on the outside of the movable frame (307), and a telescopic rod (309) is installed at one end of the movable frame (307), and the telescopic rod (309) passes through the fixed frame (310) and extends to the outside thereof. A reciprocating screw rod (311) is provided inside the first rotating frame (301) and the second rotating frame (304), and the film tearing assembly (4) is provided in two groups, which are respectively installed below the two groups of reciprocating screw rods (311).

4. The LCD display backlight assembly machine according to claim 1, characterized in that: The film tearing assembly (4) includes a moving block (401), and a telescopic cylinder (402) is installed on the front side of the moving block (401), and the output end of the telescopic cylinder (402) is connected to the lifting block (403), the contact roller (406) is located below between the unwinding roller (404) and the winding roller (405), and a limiting groove (408) is provided on the side of the reciprocating track (407) away from the tooth block (409), and the integrated block (410) includes a pin shaft, and a slider is connected to the outer side of the pin shaft, the pin shaft passes through the slider and is connected to the flip gear (413), and one side of the slider is located on the outer side of the pin shaft and is connected to a circular block matching the limiting groove (408), and the end of the pin shaft away from the flip gear (413) passes through the flip block (411).

5. The LCD display backlight assembly machine according to claim 1, characterized in that: The fitting assembly (5) comprises a fixed storage block (501), wherein the bottom end of the fixed storage block (501) is hinged to a first short connecting rod (503), the bottom end of the first short connecting rod (503) is hinged to a first long connecting rod (504), and the rear side of the first long connecting rod (504) is hinged to a second long connecting rod (505), and one end of the second long connecting rod (505) is hinged to a second short connecting rod (506), and the second short connecting rod (506) is hinged below the flip storage block (502), and a driving member (507) is installed on the rear side of the first short connecting rod (503).

6. The LCD display backlight assembly machine according to claim 1, characterized in that: A driving motor (619) is installed on one side above the housing (601), and the output end of the driving motor (619) is connected to an upper transmission gear (612), the bottom end of the upper transmission gear (612) is meshed with a lower transmission gear (613), and the rear side of the lower transmission gear (613) is connected to a pin shaft (614) via a shaft, a spacer block (615) is provided below the pin shaft (614), and a plurality of spacer grooves (616) are spaced apart inside the spacer block (615), the pin shaft (614) is in contact with the spacer grooves (616), and one side of the spacer block (615) is connected to a rotating cylinder (617) via a shaft.

7. The LCD display backlight assembly machine according to claim 1, characterized in that: One side of the housing (601) is connected to a rotating shaft (602), and a material picking fork (603) is passed through the middle position of the rotating shaft (602), the bottom end of the material picking fork (603) is connected to a suction cup (604), and one side of the material picking fork (603) is hinged to a hinge (605), one end of the hinge (605) is connected to an extension block (606), and the extension block (606) is passed through by a penetration rod (607), one side of the penetration rod (607) is connected to a crankshaft (608), and one side of the crankshaft (608) is connected to a protrusion (609), and the protrusion (609) is located inside the lifting frame (610).

8. The LCD display backlight assembly machine according to claim 7, characterized in that: The bottom end of the lifting frame (610) is connected to a pressing block (611), a transverse axis is provided inside the protrusion (609), one end of the transverse axis is connected to the protrusion (609), and the other end of the transverse axis is connected to the upper transmission gear (612).

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