A material taking device and display screen film pasting equipment

Abstract

The present application relates to a kind of material taking device and display screen film sticking equipment, material taking device includes mounting bracket, two groups of transverse sliding frame, two groups of longitudinal sliding frame, four groups of connecting components and at least one set of driving mechanism. Display screen film sticking equipment is set in the conveying line side of display screen functional component assembly line, including: shell stacking device, first conveying device, second conveying device, third conveying device, shell handling device, bottom film supply device, top film supply device, bottom film handling device, top film handling device and controller. The material taking device of the present application can complete the material taking of different specifications of products, and the structure is simple and light, the driving device for driving its movement is small, and it is convenient to lay out and assemble and maintain. The display screen film sticking equipment using the material taking device can automatically realize the single material taking of display screen shell, paste bottom film, paste top film and stacking, and the film sticking speed is fast, and the efficiency is high. Moreover, the equipment of the present application is arranged centrally, and the structure is compact, which is beneficial to space arrangement.

Description

Technical Field

[0001] The present invention relates to the technical field of display screen production, and in particular to a material taking device and display screen film laminating equipment. Background Art

[0002] Display screens typically consist of a screen, a housing, and functional components. During assembly, the functional components are typically installed in the housing first. Typically, a bottom gasket (hereinafter referred to as the bottom film) is first installed in the housing. The housing is then transported to an automated assembly line for assembly of the functional components, which are then mounted on the bottom film. After the functional components are assembled, a top gasket (hereinafter referred to as the top film) is then installed in the housing to isolate the functional components between the top and bottom films. The assembly of the top and bottom films is generally referred to in the industry as film lamination. Because some functional components of displays of different specifications can be shared, a single functional component assembly line can be used to accommodate multiple display specifications to improve the practicality and utilization of the functional component assembly line.

[0003] At present, the assembly equipment for the bottom film is usually integrated at the front end of the functional component assembly line, and the assembly equipment for the top film is usually integrated at the end of the functional component assembly line. At the same time, bottom film stacking racks and top film stacking racks need to be set up at the front end and the end of the functional component assembly line respectively, which makes the entire production line longer and requires a larger space for layout. In addition, because display screens have a variety of specifications and sizes, the top and bottom films that adapt to them are also of different sizes, which makes it difficult to retrieve materials. Most of the existing material-retrieving devices need to replace different grabbing parts fixing frames or adjust the position of the grabbing parts when grabbing top and bottom films of different specifications, which is time-consuming and labor-intensive. Although there are now material-retrieving devices on the market that can automatically adjust the spacing between grabbing parts, their structures are relatively complex and bulky, and their load-bearing structures need to be specially reinforced, which makes maintenance inconvenient and not conducive to spatial layout. Summary of the Invention

[0004] The object of the present invention is to provide a material taking device and a display screen film laminating device, wherein the material taking device can complete the material taking of products of different specifications, and has a simple and lightweight structure and is easy to deploy; the display screen film laminating device using the material taking device can quickly assemble the top film and the bottom film into the display screen housing, and the equipment is centrally arranged and compact in structure, which is conducive to space layout. In addition, the display screen film laminating device is independent of the functional component assembly line, is flexible to use, and is conducive to the assembly and maintenance of the entire assembly line.

[0005] To achieve the above object, the present invention discloses a material taking device, which includes:

[0006] Mounting bracket.

[0007] Two groups of transverse sliding frames are slidably connected to the two transverse sides of the mounting frame, and the two groups of transverse sliding frames are arranged opposite to each other; the transverse sliding frames are provided with a longitudinal connecting rod extending in the longitudinal direction and at least one set of first grabbing members.

[0008] Two groups of longitudinal sliding frames are slidably connected to the longitudinal sides of the mounting frame, and the two groups of longitudinal sliding frames are arranged opposite to each other; the longitudinal sliding frames are provided with a transverse connecting rod extending in the transverse direction and at least one set of second grabbing members.

[0009] Four groups of connecting components are respectively arranged at the four corners of the mounting frame, and the connecting components are slidably connected to the longitudinal connecting rod and the transverse connecting rod; at least one set of third grabbing parts is provided on the connecting components.

[0010] At least one driving mechanism is used to drive the two groups of transverse sliding frames to move relative to each other and to drive the two groups of longitudinal sliding frames to move relative to each other.

[0011] Preferably, each of the transverse sliding frames and the longitudinal sliding frames corresponds to a set of driving mechanisms respectively; or, the two groups of transverse sliding frames share a set of driving mechanisms, and the two groups of longitudinal sliding frames share a set of driving mechanisms; or, the two groups of transverse sliding frames and the two groups of longitudinal sliding frames share a set of driving mechanisms.

[0012] Preferably, the two groups of transverse sliding frames and the two groups of longitudinal sliding frames share a set of driving mechanisms; the driving mechanisms include a driving motor, a transverse belt group and a longitudinal belt group, the driving motor, the transverse belt group and the longitudinal belt group are all arranged on a mounting frame, and the output shaft of the driving motor is transmission-connected to the transverse belt group and the longitudinal belt group; the two groups of transverse sliding frames are respectively fixedly connected to the two conveying surfaces of the transverse belt group, and the distances from the two groups of transverse sliding frames to the midpoint of the travel of the transverse belt group are equal; the two groups of longitudinal sliding frames are respectively fixedly connected to the two conveying surfaces of the longitudinal belt group, and the distances from the two groups of longitudinal sliding frames to the midpoint of the travel of the longitudinal belt group are equal.

[0013] Preferably, the connecting assembly is further provided with a lifting cylinder, the base of the lifting cylinder is fixed on the connecting assembly, and the third grabbing member is mounted on the push rod of the lifting cylinder.

[0014] The present invention also discloses a display screen film laminating device, which is arranged on one side of a conveyor line of a display screen functional component assembly line, and comprises:

[0015] The shell stacking device is used for stacking display screen shells.

[0016] The first conveying device is adjacent to one side of the conveying line of the display screen functional component assembly line, and the first conveying device is the feeding end of the display screen functional component assembly line.

[0017] The second conveying device is adjacent to one side of the conveying line of the display screen functional component assembly line. The second conveying device and the first conveying device are arranged side by side, and the first conveying device is arranged on the side of the second conveying device close to the shell stacking device; the second conveying device is the discharge end of the display screen functional component assembly line.

[0018] The third conveying device is arranged on a side of the second conveying device close to the shell stacking device, and the second conveying device can transfer the display screen shell thereon to the third conveying device.

[0019] The shell conveying device is arranged between the shell stacking device, the first conveying device and the third conveying device, and is used to convey the display screen shell on the shell stacking device to the first conveying device and to convey the display screen shell on the third conveying device to the shell stacking device.

[0020] The bottom film feeding device is slidably arranged above the second conveying device and facing the first conveying device, and is used for positioning and stacking the bottom film.

[0021] The top film feeding device is slidably arranged above the second conveying device and facing the third conveying device, and is used for positioning and stacking the top film.

[0022] The base film transport device is used to transport the base film on the base film feeding device to the first conveying device and assemble it into the display screen housing. It includes a base film three-axis moving platform and a base film taking device. The base film three-axis moving platform drives the base film taking device to move.

[0023] The top film transporting device is used to transport the top film on the top film feeding device to the third conveying device and assemble it into the display screen housing, including a top film three-axis movable platform and a top film picking device. The top film three-axis movable platform drives the top film picking device to move; the top film picking device and the bottom film picking device are the picking devices described in any one of the above items.

[0024] A controller is connected to the first conveying device, the second conveying device, the third conveying device, the shell conveying device, the bottom film conveying device and the top film conveying device.

[0025] Preferably, the first conveying device and the third conveying device both include a first conveying roller and a centering mechanism; the centering mechanism includes a centering cylinder, a centering belt group, two groups of centering slides and at least one centering slide rail, and the centering slide rail, centering cylinder and centering belt group are arranged below the conveying surface of the first conveying roller; the length direction of the centering slide rail is consistent with the movement direction of the centering cylinder and is perpendicular to the conveying direction of the first conveying roller; the centering slide is slidably connected to the centering slide rail, and the two groups of the centering slides are respectively fixedly connected to the two conveying surfaces of the centering belt group, and the distances from the two groups of the centering slides to the midpoint of the stroke of the centering belt group are equal; the seat body of the centering cylinder is connected to the frame body of the first conveying roller, and the push rod of the centering cylinder is connected to any centering slide; the centering slide is also provided with at least one centering splint, and the centering splint is placed above the conveying surface of the first conveying roller.

[0026] Preferably, the third conveying device also includes a weighing mechanism, which includes a weighing mounting frame, a rack synchronous lifting frame, at least one weighing cylinder and a plurality of weighing sensors. The base of the weighing cylinder is fixed on the frame of the first conveying roller corresponding to the third conveying device, and the push rod of the weighing cylinder is fixed to the weighing mounting frame; the rack of the rack synchronous lifting frame is fixed on the frame of the first conveying roller corresponding to the third conveying device, and the frame of the rack synchronous lifting frame is fixedly connected to the weighing mounting frame; the weighing sensors are arranged at intervals on the weighing mounting frame, and the action of the weighing cylinder can drive the weighing sensors to extend out of the conveying surface of the first conveying roller corresponding to the third conveying device.

[0027] Preferably, the third conveying device also includes at least one set of first material stopping mechanism, the first material stopping mechanism includes a first material stopping cylinder and a first material stopping plate, the base of the first material stopping cylinder is fixed on the frame of the first conveying roller corresponding to the third conveying device, and the push rod of the first material stopping cylinder is fixedly connected to the first material stopping plate.

[0028] Preferably, the second conveying device includes a second conveying roller and a transition mechanism; the transition mechanism is placed at the bottom of the second conveying roller, and includes a transition mounting platform, a transition cylinder, a transition motor, at least two groups of rotating components and several transition belt groups; the rotating component includes a first rotating shaft, a second rotating shaft and two swing arms, the first rotating shaft is rotatably connected to the bottom of the transition mounting platform, the second rotating shaft is rotatably connected to the frame of the second conveying roller, and the two ends of the swing arm are rotatably connected to the first rotating shaft and the second rotating shaft respectively; the seat body of the transition cylinder is hinged to the frame of the second conveying roller, and the push rod of the transition cylinder is hinged to the transition mounting platform; the transition belt groups are mounted on the transition mounting platform in parallel with each other, the transition motor is transmission-connected to the transition belt group and drives all transition belt groups to transmit synchronously; the action of the transition cylinder can drive the conveying surface of the transition belt group to extend out of the conveying surface of the second conveying roller, and the conveying directions of the transition belt group and the second conveying roller are perpendicular to each other.

[0029] Preferably, a second material stopping mechanism is also provided at the end of the second conveying roller, and the second material stopping mechanism includes a material stopping mounting plate, a second material stopping cylinder, a second material stopping plate and at least one guide assembly, the material stopping mounting plate is fixed on the frame of the second conveying roller, the seat of the second material stopping cylinder is fixed on the material stopping mounting plate, and the push rod of the second material stopping cylinder is fixedly connected to the second material stopping plate; the guide assembly includes a guide column and a guide sleeve, the guide sleeve is fixed on the material stopping mounting plate, the guide column is fixed on the second material stopping plate, and the guide column is slidably connected in the guide sleeve; the second material stopping plate is also rotatably connected to a plurality of guide wheels, and the guide wheels are arranged side by side to form a guide plane.

[0030] Preferably, the shell handling device includes a manipulator and a grabbing mechanism, and the manipulator drives the grabbing mechanism to move; the grabbing mechanism includes a grabbing mounting frame, a grabbing belt group, a grabbing motor and two groups of grabbing sliding frames, and the grabbing mounting frame is connected to the manipulator; the grabbing belt group and the grabbing motor are arranged on the grabbing mounting frame, and the grabbing motor is transmission-connected to the grabbing belt group; the two groups of grabbing sliding frames are respectively slidably connected to the two ends of the grabbing mounting frame, and the two groups of grabbing sliding frames are respectively fixedly connected to the two conveying surfaces of the grabbing belt group, and the distances from the two groups of grabbing sliding frames to the midpoint of the stroke of the grabbing belt group are equal; a number of telescopic components are arranged side by side at the lower end of the grabbing sliding frame, and the telescopic components on the two groups of grabbing sliding frames cooperate to grab the display screen shell.

[0031] Preferably, the telescopic assembly includes an elastic member and a telescopic rod, and the grab sliding frame is provided with a limiting through hole corresponding to the telescopic rod one by one, one end of the limiting through hole is provided with a limiting opening cooperating with the telescopic rod, and the other end is screwed with a sealing plate; the telescopic rod is slidably connected in the limiting through hole and one end of the telescopic rod can extend out of the limiting opening; the elastic member is placed in the limiting through hole, and one end of the elastic member abuts the telescopic rod, and the other end abuts the sealing plate; the outer side of the display screen housing is provided with a limiting groove cooperating with the telescopic rod.

[0032] Preferably, it further comprises a photoelectric sensor corresponding to the telescopic assembly one-to-one, the photoelectric sensor is fixed on the sealing plate, and the end of the telescopic rod close to the sealing plate is provided with a sensing rod that cooperates with the photoelectric sensor.

[0033] The shell handling device also includes at least one set of distance measuring sensors and at least two sets of alignment cameras. The distance measuring sensors are arranged on a grabbing mounting frame or a grabbing sliding frame. The alignment cameras are divided into two groups and are respectively arranged on two groups of grabbing sliding frames.

[0034] Preferably, the top film feeding device and the bottom film feeding device each include a film feeding sliding frame, a film limiting mechanism, at least two sets of sliding mechanisms and at least one set of locking mechanism, wherein the film limiting mechanism is provided on the film feeding sliding frame and is used to adapt to and limit top films or bottom films of different specifications; the film feeding sliding frame is connected to the second conveying device via the sliding mechanism, and the locking mechanism is used to lock the film feeding sliding frame on the second conveying device;

[0035] The sliding mechanism includes a sliding rod, a sliding block, a connecting plate and a rotating member, the sliding rod is fixed on the second conveying device, the sliding block is slidably connected to the sliding rod, the rotating member is rotatably connected to the sliding block, and the rotating member is fixed to the connecting plate, and the connecting plate is fixed to the film supply sliding frame.

[0036] Preferably, the film limiting mechanism includes a first film limiting belt group, a second film limiting belt group, two groups of film limiting drive assemblies, two groups of relatively arranged first film limiting sliding frames and two groups of relatively arranged second film limiting sliding frames, the first film limiting sliding frame and the second film limiting sliding frame are both slidably connected to the film supply sliding frame, and the moving directions of the first film limiting sliding frame and the second film limiting sliding frame are perpendicular to each other; the first film limiting sliding frame and the second film limiting sliding frame are both provided with at least one limiting rod, the limiting rod extends out of the top surface of the film supply sliding frame, and the film supply sliding frame and all the limiting rods cooperate to form a limiting space for limiting the top film or the bottom film. The two groups of the first membrane limiting sliding frames are respectively fixedly connected to the two conveying surfaces of the first membrane limiting belt group, and the distances from the two groups of the first membrane limiting sliding frames to the midpoint of the stroke of the first membrane limiting belt group are equal; the two groups of the second membrane limiting sliding frames are respectively fixedly connected to the two conveying surfaces of the second membrane limiting belt group, and the distances from the two groups of the second membrane limiting sliding frames to the midpoint of the stroke of the second membrane limiting belt group are equal; the two groups of the membrane limiting drive assemblies respectively drive the first membrane limiting belt group and the second membrane limiting belt group to transmit, and the membrane limiting drive assembly includes a fixed seat, a crank handle rotatably connected to the fixed seat, and a locking switch for locking the crank handle.

[0037] The locking mechanism includes a rotary clamping cylinder and a fastener, the fastener is fixed on the output rod of the clamping cylinder, and the film supply sliding frame is provided with a fastening groove that matches the fastener.

[0038] Preferably, the shell stacking device includes a first shell stacking mechanism for stacking display screen shells that are not affixed with film, and a second shell stacking mechanism for stacking display screen shells that have been affixed with film; the first shell stacking mechanism and the second shell stacking mechanism both include a stacking table and a pushing assembly, and the stacking table is provided with a first limit baffle on the side close to the base film conveying device, and a second limit baffle is provided at the adjacent side of the first limit baffle, and the pushing assembly is arranged relative to the second limit baffle; the pushing assembly includes a pushing linear moving module and a pushing rod, and the pushing linear moving module drives the pushing rod to move relative to the second limit baffle; the pushing linear moving module is connected to the controller.

[0039] It also includes a fourth conveying roller conveyor for conveying defective products, and the fourth conveying roller conveyor is placed next to the shell conveying device.

[0040] The present invention has the following beneficial effects:

[0041] The present invention's retrieving device can handle products of varying specifications. Its simple and lightweight structure places minimal strain on the drive mechanism that drives it, making it easy to deploy, assemble, and maintain. A display screen film laminating device utilizing this device can automatically retrieve individual display screen covers, apply the base film, apply the top film, and stack them, achieving rapid and efficient laminating. Furthermore, the present invention's centralized layout and compact structure facilitate spatial planning. Furthermore, the display screen film laminating device is independent of the functional component assembly line, offering easy mobility and flexibility, facilitating assembly and maintenance of the entire assembly line. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Figure 1 This is the floor plan of the display screen film laminating equipment.

[0043] Figure 2 It is a three-dimensional schematic diagram of the display screen film laminating equipment.

[0044] Figure 3 Schematic diagram of the second shell stacking mechanism.

[0045] Figure 4 Schematic diagram of the first conveying device.

[0046] Figure 5 This is a schematic diagram of the first conveying device from another perspective.

[0047] Figure 6 Schematic diagram of the third conveying device.

[0048] Figure 7 This is a schematic diagram of the third conveying device with the rollers hidden.

[0049] Figure 8 Schematic diagram of the second conveying device.

[0050] Figure 9 Schematic diagram of the transition mechanism.

[0051] Figure 10 A schematic diagram showing another perspective of the transitional organization.

[0052] Figure 11 Schematic diagram of the shell handling device.

[0053] Figure 12 Schematic diagram of the grasping mechanism.

[0054] Figure 13 This is a schematic diagram of the installation of the telescopic component.

[0055] Figure 14 This is the installation diagram of the top film feeding device and the bottom film feeding device.

[0056] Figure 15 for Figure 14 Enlarged schematic diagram of part A in the middle.

[0057] Figure 16 for Figure 14 Enlarged schematic diagram of part B in the middle.

[0058] Figure 17 Schematic diagram of the top film feeding device.

[0059] Figure 18 for Figure 17 Enlarged schematic diagram of part C in the middle.

[0060] Figure 19 This is a schematic diagram of the top film feeding device from another perspective.

[0061] Figure 20 Schematic diagram of the base film transport device.

[0062] Figure 21 Schematic diagram of the bottom film taking device.

[0063] Figure 22 This is a schematic diagram of the bottom film taking device from another perspective.

[0064] Description of main components symbols:

[0065] First shell stacking mechanism 11, second shell stacking mechanism 12, stacking platform 121, first limit baffle 1211, second limit baffle 1212, pushing motor 1221, pushing screw 1222, pushing guide rail 1223, pushing slider 1224, pushing rod 123;

[0066] First conveying device 20, first conveying roller 21, centering cylinder 221, centering belt assembly 222, centering carriage 223, centering slide rail 224, centering clamping plate 225;

[0067] Second conveying device 30, second conveying roller 31, second material blocking mechanism 32, material blocking mounting plate 321, second material blocking cylinder 322, second material blocking plate 323, guide post 324, guide sleeve 325, guide wheel 326, transition mechanism 33, transition mounting platform 331, transition cylinder 332, transition motor 333, first rotating shaft 3341, second rotating shaft 3342, swing arm 3343, transition belt assembly 335;

[0068] The third conveying device 40, a weighing mechanism 41, a weighing mounting frame 411, a weighing cylinder 412, a weighing sensor 413, a rack synchronous lifting frame 414, a first material stopping mechanism 42, a first material stopping cylinder 421, and a first material stopping plate 422;

[0069] Shell handling device 50, manipulator 51, gripping mechanism 52, gripping mounting frame 521, gripping belt assembly 522, gripping sliding frame 524, limiting through-hole 5241, limiting opening 5242, sealing plate 5243, elastic member 5251, telescopic rod 5252, photoelectric sensor 5253, sensing rod 5254, distance measuring sensor 53, alignment camera 54;

[0070] Base film feeding device 60, film feeding slide 61, buckle groove 611, sliding mechanism 62, sliding rod 621, sliding block 622, connecting plate 623, rotating member 624, locking mechanism 63, clamping cylinder 631, buckle 632, film limiting mechanism 64, first film limiting belt group 641, second film limiting belt group 642, film limiting drive assembly 643, fixed seat 6431, crank handle 6432, locking switch 6433, first film limiting slide 644, second film limiting slide 645, limiting rod 646, brush 647;

[0071] Top film feeding device 70;

[0072] Base film three-axis moving platform 81, base film taking device 82, mounting frame 821, transverse sliding frame 822, longitudinal connecting rod 8221, first grabbing member 8222, longitudinal sliding frame 823, transverse connecting rod 8231, second grabbing member 8232, connecting assembly 824, lifting cylinder 8241, third grabbing member 8242, driving mechanism 825, driving motor 8251, transverse belt group 8252, longitudinal belt group 8253;

[0073] Top film three-axis moving platform 91, top film taking device 92;

[0074] Display screen functional component assembly line 101 , fourth conveyor roller 102 , display screen housing 103 , limiting groove 1031 , top film 104 . DETAILED DESCRIPTION

[0075] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments.

[0076] like Figures 1 to 22As shown, the present invention discloses a display screen film laminating device, which is installed on the conveyor side of a display screen functional component assembly line 101. It is used to convey a display screen housing 103 assembled with a base film to the display screen functional component assembly line 101. After the functional component assembly is completed, the display screen housing 103 returns to the display screen film laminating device of the present invention and is assembled with a top film 104. After weighing, it is stacked and stored. The display screen film laminating device includes: a housing stacking device, a first conveyor device 20, a second conveyor device 30, a third conveyor device 40, a housing conveying device 50, a base film feeding device 60, a top film 104 feeding device 70, a base film conveying device, a top film 104 conveying device, a fourth conveyor roller 102, and a controller. The controller is a PLC.

[0077] The shell stacking device is used to stack the display shells 103. To facilitate management and placement, the shell stacking device includes a first shell stacking mechanism 11 for stacking display shells 103 that have not been film-applied, and a second shell stacking mechanism 12 for stacking display shells 103 that have been film-applied. The first shell stacking mechanism 11 and the second shell stacking mechanism 12 are arranged side by side. The first shell stacking mechanism 11 and the second shell stacking mechanism 12 both include a stacking platform 121 and a material pushing assembly. A first limiting baffle 1211 is provided on the side of the stacking platform 121 close to the base film handling device, and a second limiting baffle 1212 is provided adjacent to the first limiting baffle 1211. The second limiting baffle 1212 is bent away from the first limiting baffle 1211 to prevent collision with the display shell 103 and damage to the display shell 103. The pusher assembly is arranged relative to the second limit baffle 1212. The pusher assembly includes a pusher linear motion module and a pusher rod 123. The pusher linear motion module drives the pusher rod 123 to move relative to the second limit baffle 1212. Similarly, the pusher rod 123 is bent at one end away from the first limit baffle 1211. The pusher linear motion module is an existing mature technology and includes a pusher motor 1221, a pusher screw 1222, a pusher guide rail 1223 and a pusher slider 1224. The pusher screw 1222 and the pusher guide rail 1223 are parallel to each other. The pusher slider 1224 is slidably connected to the pusher guide rail 1223. At the same time, the pusher slider 1224 is also threadedly connected to the pusher screw 1222. The pusher motor 1221 drives the pusher screw 1222 to rotate, and the pusher rod 123 is fixed to the pusher slider 1224. Among them, the pusher motor 1221 is connected to the controller. By providing the pushing assembly, the display screen housing 103 can be positioned, making it easier for the housing transport device 50 to grab it.

[0078] The first conveyor device 20 is adjacent to one side of the conveyor line of the display screen functional component assembly line 101 and can be considered the feed end of the display screen functional component assembly line 101. The second conveyor device 30 is adjacent to one side of the conveyor line of the display screen functional component assembly line 101 and is arranged side by side with the first conveyor device 20. The first conveyor device 20 is arranged on the side of the second conveyor device 30 near the shell stacking device. The second conveyor device 30 and the first conveyor device 20 have the same conveying direction and can be considered the discharge end of the display screen functional component assembly line 101. The third conveyor device 40 is arranged on the side of the second conveyor device 30 near the shell stacking device, so that the first conveyor device 20 is positioned between the third conveyor device 40 and the conveyor line of the display screen functional component assembly line 101. The third conveyor device 40 is perpendicular to the conveying direction of the second conveyor device 30, and the second conveyor device 30 can transfer the display screen shells 103 on it to the third conveyor device 40.

[0079] Both the first conveyor 20 and the third conveyor 40 include a first conveyor roller 21, a centering mechanism, and at least one first material blocking mechanism 42. The first conveyor roller 21 is connected to a controller. The centering mechanism includes a centering cylinder 221, a centering belt assembly 222 (the centering belt assembly 222 and other belt assemblies mentioned below are each composed of a belt and at least two pulleys), two sets of centering slides 223, and at least one centering rail 224. The centering cylinder 221 is connected to the controller. The centering rail 224, the centering cylinder 221, and the centering belt assembly 222 are positioned below the conveying surface of the first conveyor roller 21 to avoid interfering with the conveyance of the display housing 103. The length of the centering rail 224 is aligned with the direction of motion of the centering cylinder 221 and is perpendicular to the conveying direction of the first conveyor roller 21. The centering slides 223 are slidably connected to the centering rails 224. Two sets of centering slides 223 are fixedly connected to the two conveying surfaces of the centering belt assembly 222, respectively. The distances between the two sets of centering slides 223 and the midpoint of the travel of the centering belt assembly 222 are equal. The base of the centering cylinder 221 is fixed to the frame of the first conveyor roller 21, and the push rod of the centering cylinder 221 is connected to one of the centering slides 223. At least one centering clamping plate 225 is fixedly connected to the centering slide 223 via a support. This clamping plate 225 is positioned above the conveying surface of the first conveyor roller 21 and supported in the gap between the rollers of the first conveyor roller 21. The centering cylinder 221 is extended and retracted, which can make the two centering slides 223 synchronously converge or move away from the center line position of the first conveyor roller 21. When the two centering slides 223 converge, the centering clamp 225 will clamp the display screen housing 103, thereby centered on the first conveyor roller 21.

[0080] The first material-blocking mechanism 42 includes a first material-blocking cylinder 421 and a first material-blocking plate 422. The first material-blocking cylinder 421 is connected to the controller. The base of the first material-blocking cylinder 421 is fixed to the frame of the first conveyor roller 21. The push rod of the first material-blocking cylinder 421 is fixedly connected to the first material-blocking plate 422. Under normal conditions, the first material-blocking plate 422 does not extend beyond the conveying surface of the first conveyor roller 21. When the first material-blocking cylinder 421 is in operation, the first material-blocking plate 422 extends beyond the conveying surface of the first conveyor roller 21 from the gap between the rollers, thereby blocking the conveyance of the display screen housing 103. Multiple sets of the first material-blocking mechanism 42 are used to correspond to display screen housings 103 of different specifications. Through the cooperation of the first conveyor roller 21, the centering structure, and the first material-blocking mechanism 42, the display screen housing 103 can be accurately aligned to facilitate grabbing by the housing transport mechanism or the operation of applying a film.

[0081] Specifically, the third conveyor 40 is equipped with a weighing mechanism 41, which includes a weighing mounting frame 821411, a synchronous rack lift frame 414, at least one weighing cylinder 412, and several weighing sensors 413. The weighing cylinders 412 and the weighing sensors 413 are connected to a controller. The base of the weighing cylinders 412 is fixed to the frame of the first conveyor roller 21 corresponding to the third conveyor 40, and the push rod of the weighing cylinders 412 is fixed to the weighing mounting frame 821411. The weighing sensors 413 are arranged at intervals on the weighing mounting frame 821411. The actuation of the weighing cylinders 412 causes the weighing sensors 413 to extend beyond the conveying surface of the first conveyor roller 21 corresponding to the third conveyor 40. The rack of the rack synchronous lifting frame 414 is fixed to the frame of the first conveyor roller 21 corresponding to the third conveyor device 40, and the frame of the rack synchronous lifting frame 414 is fixedly connected to the weighing mounting frame 821411. By setting up the rack synchronous lifting frame 414, the flatness of the weighing sensor 413 can be guaranteed, and the reliability of the weighing value can be guaranteed. Of course, it is also possible not to set up the synchronous lifting frame. After the film is applied to the display screen housing 103, it is weighed. Because the display screen housing 103, top film 104, bottom film and various functional components are all standard parts with small weight errors, weighing can ensure to a certain extent that no parts are missing or over-installed, thus achieving the purpose of detection.

[0082] The second conveying device 30 includes a second conveyor roller 31, a transition mechanism 33, and a second material stop mechanism 32. The second conveyor roller 31 is connected to a controller. The second material stop mechanism 32 is arranged at the conveying end of the second conveyor roller 31 and includes a material stop mounting plate 321, a second material stop cylinder 322, a second material stop plate 323, and at least one guide assembly. The second material stop cylinder 322 is connected to the controller. The material stop mounting plate 321 is fixed to the frame of the second conveyor roller 31, the base of the second material stop cylinder 322 is fixed to the material stop mounting plate 321, and the push rod of the second material stop cylinder 322 is fixedly connected to the second material stop plate 323. The guide assembly includes a guide column 324 and a guide sleeve 325. The guide sleeve 325 is fixed to the material stop mounting plate 321, and the guide column 324 is fixed to the second material stop plate 323. The guide column 324 is slidably connected to the guide sleeve 325 to achieve a guiding function. The second stopper plate 323 is also rotatably connected to a plurality of guide wheels 326, which are arranged side by side and form a guide plane. The guide wheels 326 are provided to facilitate the transition of the display housing 103 to the third conveyor device 40. By providing the second stopper mechanism 32, the position of the display housing 103 on the second conveyor roller 31 can be limited to ensure that the transition device can effectively transfer it to the third conveyor device 40.

[0083] The transition mechanism 33 is located at the bottom of the second conveyor roller conveyor 31 and includes a transition mounting platform 331, a transition cylinder 332, a transition motor 333, at least two rotating components, and several transition belt assemblies 335. The transition cylinder 332 and the transition motor 333 are connected to a controller. The rotating components include a first rotating shaft 3341, a second rotating shaft 3342, and two swing arms 3343. The first rotating shaft 3341 is rotatably connected to the bottom of the transition mounting platform 331, the second rotating shaft 3342 is rotatably connected to the frame of the second conveyor roller conveyor 31, and the ends of the swing arms 3343 are rotatably connected to the first rotating shaft 3341 and the second rotating shaft 3342, respectively. The base of the transition cylinder 332 is hinged to the frame of the second conveyor roller conveyor 31, and the push rod of the transition cylinder 332 is hinged to the transition mounting platform 331. The transition belt sets 335 are mounted parallel to each other on the transition mounting platform 331. The transition motor 333 is in transmission connection with the transition belt sets 335 and drives all transition belt sets 335 to transmit synchronously. The transition belt sets 335 and the transmission direction of the second conveyor roller 31 are mutually perpendicular. The transition motor 333 can be connected to a reversing gearbox with an extension rod attached to the output shaft of the gearbox. One of the pulleys of each transition belt set 335 is then fixed to the extension rod, thereby enabling the transition belt sets 335 to rotate synchronously. The transition cylinder 332 is actuated to drive the transmission surface of the transition belt sets 335 beyond the transmission surface of the second conveyor roller 31, thereby lifting the display screen housing 103, which is then transported by the transition belt sets 335 and transferred to the third conveyor device 40.

[0084] The housing transport device 50 is disposed between the housing stacking device, the first conveyor device 20, the third conveyor device 40, and the fourth conveyor roller 102. It is used to transport the display housings 103 from the first housing stacking mechanism 11 to the first conveyor device 20 and to transport the display housings 103 from the third conveyor device 40 to the first housing stacking mechanism 11 or the fourth conveyor roller 102. Display housings 103 that fail to meet the weight requirements are transported to the fourth conveyor roller 102 for troubleshooting.

[0085] The shell handling device 50 includes a manipulator 51, a gripping mechanism 52, at least one set of distance sensors 53, and at least two sets of alignment cameras 54. The manipulator 51 drives the gripping mechanism 52 to move. The manipulator 51 can be a Kawasaki robot model BX200L. The manipulator 51, distance sensors 53, and alignment cameras 54 are all connected to a controller. The gripping mechanism 52 includes a gripping mounting frame 821521, a gripping belt assembly 522, a gripping motor, and two sets of gripping slides 524. The gripping motor is connected to the controller. The gripping mounting frame 821521 is connected to the manipulator 51. The gripping belt assembly 522 and the gripping motor are mounted on the gripping mounting frame 821521, and the gripping motor is in transmission connection with the gripping belt assembly 522. Two sets of grabbing slides 524 are slidably connected to the ends of the grabbing mounting frame 821521. The two sets of grabbing slides 524 are fixedly connected to the two conveying surfaces of the grabbing belt assembly 522. The two sets of grabbing slides 524 are equidistant from the midpoint of the travel of the grabbing belt assembly 522. Several telescopic assemblies are arranged side by side and evenly spaced at the lower ends of the grabbing slides 524. The telescopic assemblies on the two sets of grabbing slides 524 cooperate to grab the display housing 103.

[0086] Specifically, the telescopic assembly includes an elastic member 5251, a telescopic rod 5252, and a photoelectric sensor 5253. The photoelectric sensor 5253 is connected to the controller. The grab slide 524 is provided with a stopper hole 5241 corresponding to each telescopic rod 5252. One end of each stopper hole 5241 is provided with a stopper notch 5242 that engages with the telescopic rod 5252, and the other end is screwed to a sealing plate 5243. The telescopic rod 5252 slides into the stopper hole 5241, and one end of the telescopic rod 5252 can extend through the stopper notch 5242. The stopper notch 5242 also prevents the telescopic rod 5252 from dislodging. A stopper slot 1031 is provided on the outside of the display housing 103 to engage with the telescopic rod 5252. A photoelectric sensor 5253 is fixed to a sealing plate 5243. A sensing rod 5254 is provided at the end of a telescopic rod 5252 near the photoelectric sensor 5253, which cooperates with the sensor 5253. A through-hole is provided in the sealing plate 5243 for the sensing rod 5254 to pass through. An elastic member 5251 is placed in the stop hole 5241 and sleeved over the sensing rod 5254. One end of the elastic member 5251 abuts the telescopic rod 5252, and the other end abuts the sealing plate 5243. Under normal circumstances, the sensing rod 5254 is not sensed by the photoelectric sensor 5253. When the grabbing carriage 524 moves relative to the display housing 103 and begins to contact the display housing 103, the telescopic rod 5252 facing the limiting slot 1031 is free of force and extends into the limiting slot 1031. Meanwhile, the telescopic rod 5252 not facing the limiting slot 1031 is squeezed by the display housing 103 and retracts into the limiting through-hole 5241, correspondingly extending the sensing rod 5254. When the grabbing carriage 524 clamps the display housing 103, the telescopic rod 5252 positioned in the limiting slot 1031 locks the display housing 103 to prevent it from falling, ensuring that the display housing 103 can be safely and reliably transported. The sensing rod 5254, in conjunction with the photoelectric sensor 5253, ensures that the display housing 103 is securely clamped by the grabbing carriage 524.

[0087] The provision of the distance measuring sensor 53 and the alignment camera 54 further ensures that the display housing 103 is securely gripped. The distance measuring sensor 53 is mounted on the gripping mounting frame 821521 or the gripping slide 524. When the display housing 103 is securely gripped, the distance between the distance measuring sensor 53 and the gripping mounting frame 821521 or the gripping slide 524 is fixed, thereby enabling detection and confirmation. The alignment camera 54 is divided into two groups and is respectively mounted on the two gripping slides 524. By detecting the position of the outer edge of the display housing 103, it can determine whether the display housing 103 is securely clamped.

[0088] The bottom film feeding device 60 and the top film 104 feeding device 70 are both slidably arranged above the second conveying device 30. This arrangement can make the overall layout of the equipment more compact and improve space utilization. Among them, the bottom film feeding device 60 is opposite the first conveying device 20 and is used to position and stack the bottom film. The top film 104 feeding device 70 is opposite the third conveying device 40 and is used to position and stack the top film 104. The top film 104 feeding device 70 and the bottom film feeding device 60 both include a film supply slide 61, a film limiting mechanism 64, two sets of sliding mechanisms 62 and at least one set of locking mechanisms 63. The film limiting mechanism 64 is arranged on the film supply slide 61 and is used to adapt to and limit top films 104 or bottom films of different specifications. The film supply slide 61 is connected to the second conveying device 30 via the sliding mechanism 62. The locking mechanism 63 is used to lock the film supply slide 61 to the second conveying device 30. Pulleys may be provided at the bottom of the film supply sliding frame 61 to facilitate sliding.

[0089] Two sets of sliding mechanisms 62 are respectively arranged on either side of the film supply carriage 61 and include a sliding rod 621, a sliding block 622, a connecting plate 623, and a rotating member 624. The sliding rod 621 is fixed to the frame of the second conveyor roller 31, and the sliding block 622 is slidably connected to the sliding rod 621. The rotating member 624 is rotatably connected to the sliding block 622 and is also fixed to the connecting plate 623, which is fixed to the film supply carriage 61. With this arrangement, the film supply carriage 61 can be smoothly pushed even when the ground is not flat, or the film supply carriage 61 can be directly lifted to push it. The film supply carriage 61 does not interfere with the display screen housing 103 when it is transported on the second conveyor roller 31. An adjustment platform can also be provided at the foot of the second conveyor roller 31 so that when the film supply carriage 61 is fully pushed above the second conveyor roller 31, the film supply carriage 61 can be supported by the adjustment platform to ensure the flatness of the film supply carriage 61.

[0090] The locking mechanism 63 includes a rotary clamping cylinder 631 and a fastener 632. The clamping cylinder 631 is connected to the controller. The clamping cylinder 631 uses the MKB32-12RZ rotary clamping cylinder 631, which is fixed to the frame of the second conveyor roller 31. The fastener 632 is fixed to the output rod of the clamping cylinder 631. The film supply slide 61 is provided with a fastening groove 611 that cooperates with the fastener 632. The clamping cylinder 631, fastener 632, and fastening groove 611 cooperate to lock the film supply slide 61 above the second conveyor roller 31, facilitating the bottom film handling device to grasp the bottom film and the top film 104 handling device to grasp the top film 104.

[0091] The film limiting mechanism 64 includes a first film limiting belt assembly 641, a second film limiting belt assembly 642, two film limiting drive assemblies 643, two opposing first film limiting slides 644, and two opposing second film limiting slides 645. The first and second film limiting slides 644 and 645 are slidably connected to the film supply slide 61, and their movement directions are perpendicular to each other. Each of the first and second film limiting slides 644 and 645 is equipped with at least one limiting rod 646, which extends from the top surface of the film supply slide 61. The film supply slide 61 and all limiting rods 646 cooperate to form a limiting space for the top film 104 or the bottom film. A brush 647 is provided on the inner side of the limiting rod 646 to prevent the removal of multiple bottom films or top films 104 at once. Two sets of first membrane limiting slides 644 are fixedly connected to the two conveying surfaces of the first membrane limiting belt assembly 641, and the distances from the two sets of first membrane limiting slides 644 to the midpoint of the travel of the first membrane limiting belt assembly 641 are equal. Two sets of second membrane limiting slides 645 are fixedly connected to the two conveying surfaces of the second membrane limiting belt assembly 642, and the distances from the two sets of second membrane limiting slides 645 to the midpoint of the travel of the second membrane limiting belt assembly 642 are equal. Two sets of membrane limiting drive assemblies 643 respectively drive the first membrane limiting belt assembly 641 and the second membrane limiting belt assembly 642. The membrane limiting drive assemblies 643 include a fixed base 6431, a crank handle 6432 rotatably connected to the fixed base 6431, and a locking switch 6433 (locking handle) for locking the crank handle 6432.

[0092] The bottom film transport device is used to transport the bottom film from the bottom film feeding device 60 to the first conveying device 20 and assemble it into the display screen housing 103. It includes a bottom film three-axis movable platform 81 and a bottom film picking device 82. The bottom film three-axis movable platform 81 drives the bottom film picking device 82 to move. The bottom film three-axis movable platform 81 is connected to the controller. The top film 104 transport device is used to transport the top film 104 from the top film 104 feeding device 70 to the third conveying device 40 and assemble it into the display screen housing 103. It includes a top film 104 three-axis movable platform 91 and a top film 104 picking device 92. The top film 104 three-axis movable platform 91 drives the top film 104 picking device 92 to move. The top film 104 three-axis movable platform 91 is connected to the controller. The bottom film three-axis moving platform 81 and the top film 104 three-axis moving platform 91 can adopt the existing three-axis moving platform based on motor and screw rod, which can be regarded as a combination of three sets of linear moving modules. It is an existing mature technology and will not be repeated in this case.

[0093] The top film 104 retrieving device 92 and the bottom film retrieving device 82 each include a mounting frame 821, two sets of transverse sliding frames 822, two sets of longitudinal sliding frames 823, four sets of connecting assemblies 824, and at least one set of drive mechanisms 825. The mounting frame 821 is designed as a frame structure to reduce weight. The two sets of transverse sliding frames 822 are slidably connected to the mounting frame 821 on either side of the transverse direction, and the two sets of transverse sliding frames 822 are arranged opposite each other. The two sets of longitudinal sliding frames 823 are slidably connected to the mounting frame 821 on either side of the longitudinal direction, and the two sets of longitudinal sliding frames 823 are arranged opposite each other. The mounting frame 821 is provided with transverse slide rails that cooperate with the transverse slide rails 822 and longitudinal slide rails that cooperate with the longitudinal slide rails 823. The drive mechanism 825 is used to drive the relative movement of the two sets of transverse slides 822 and the two sets of longitudinal slides 823. There are various ways to coordinate the drive mechanism 825 with the transverse slides 822 and longitudinal slides 823. For example, each transverse slide 822 and longitudinal slide 823 may correspond to a corresponding set of drive mechanisms 825; alternatively, the two sets of transverse slides 822 and the two sets of longitudinal slides 823 may share a single set of drive mechanisms 825; or alternatively, the two sets of transverse slides 822 and the two sets of longitudinal slides 823 may share a single set of drive mechanisms 825. For the purpose of reducing load, the third coordination method is preferred and will be described in detail below.

[0094] The drive mechanism 825 includes a drive motor 8251, a transverse belt assembly 8252, and a longitudinal belt assembly 8253. The drive motor 8251 is connected to a controller. The drive motor 8251, the transverse belt assembly, and the longitudinal belt assembly are all mounted on the mounting frame 821. The output shaft of the drive motor 8251 is connected to the transverse belt assembly and the longitudinal belt assembly. The transmission method can be to directly fix a pulley of the transverse belt assembly and a pulley of the longitudinal belt assembly to the output shaft of the drive motor 8251. The two sets of transverse slides 822 are respectively fixedly connected to the two conveying surfaces of the transverse belt assembly 8252, and the distances between the two sets of transverse slides 822 and the midpoint of the travel of the transverse belt assembly 8252 are equal. The two sets of longitudinal slides 823 are respectively fixedly connected to the two conveying surfaces of the longitudinal belt assembly 8253, and the distances between the two sets of longitudinal slides 823 and the midpoint of the travel of the longitudinal belt assembly 8253 are equal. The driving motor 8251 is in operation, and the horizontal sliding frame 822 and the vertical sliding frame 823 are simultaneously gathered toward or away from the center of the mounting frame 821. By changing the diameter of the pulley fixed on the output shaft of the driving motor 8251, the moving speed of the horizontal sliding frame 822 and the vertical sliding frame 823 can be changed.

[0095] A longitudinal connecting rod 8221 extending longitudinally is provided on the transverse sliding frame 822, and a first grabbing member 8222 is provided at the bottom of the transverse sliding frame 822. A transverse connecting rod 8231 extending transversely is provided on the longitudinal sliding frame 823, and a second grabbing member 8232 is provided at the bottom of the longitudinal sliding frame 823.

[0096] Four sets of connecting assemblies 824 are respectively arranged at the four corners of the mounting frame 821, and the connecting assemblies 824 are simultaneously slidably connected to the longitudinal connecting rod 8221 and the transverse connecting rod 8231. To ensure smoother sliding of the connecting assemblies 824, two linear bearings are provided on the connecting assemblies 824, one corresponding to each of the longitudinal connecting rod 8221 and the transverse connecting rod 8231, and slidably connected thereto. To prevent the connecting assemblies 824 from detaching from the longitudinal connecting rod 8221 and the transverse connecting rod 8231, limit baffles are provided at both ends of the longitudinal connecting rod 8221 and the transverse connecting rod 8231. A lifting cylinder 8241 is also provided on the connecting assembly 824, and the lifting cylinder 8241 is connected to the control. The base of the lifting cylinder 8241 is fixed to the connecting assembly 824, and a third grabbing member 8242 is installed on the push rod of the lifting cylinder 8241.

[0097] The first, second, and third grippers 8222, 8232, and 8242 all utilize vacuum suction cups, controlled by a three-way solenoid valve connected to a controller. The common terminal of the three-way solenoid valve is connected to the vacuum cup, with the normally open terminal suspended in the air and the normally closed terminal connected to an external vacuum pump. When the lifting cylinder 8241 is extended, the bottoms of the first, second, and third grippers 8222, 8232, and 8242 are flush. The third gripper 8242 is typically used to grasp larger top or bottom films.

[0098] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by any technician familiar with this technical field within the technical scope disclosed by the present invention should be covered by the scope of protection of the present invention.

Claims

1. A display screen film laminating device, characterized in that: Set up on the conveyor line side of the display functional component assembly line, including: Shell stacking device, used for stacking display screen shells; A first conveying device is adjacent to one side of the conveying line of the display screen functional component assembly line, and the first conveying device is a feeding end of the display screen functional component assembly line; A second conveying device is adjacent to one side of the conveying line of the display screen functional component assembly line, the second conveying device and the first conveying device are arranged side by side, and the first conveying device is arranged on the side of the second conveying device close to the shell stacking device; the second conveying device is the discharge end of the display screen functional component assembly line; a third conveying device, arranged on a side of the second conveying device close to the shell stacking device, and the second conveying device can transfer the display screen shell thereon to the third conveying device; a shell conveying device, disposed between the shell stacking device, the first conveying device, and the third conveying device, for conveying the display screen shells on the shell stacking device to the first conveying device and conveying the display screen shells on the third conveying device to the shell stacking device; A bottom film feeding device is slidably arranged above the second conveying device and facing the first conveying device, and is used for positioning and stacking the bottom film; A top film feeding device is slidably arranged above the second conveying device and facing the third conveying device, and is used for positioning and stacking the top film; A base film transport device is used to transport the base film on the base film feeding device to the first conveying device and assemble it into the display screen housing, comprising a base film three-axis moving platform and a base film taking device, wherein the base film three-axis moving platform drives the base film taking device to move; A top film transport device is used to transport the top film on the top film feeding device to the third conveying device and assemble it into the display screen housing, comprising a top film three-axis moving platform and a top film taking device, wherein the top film three-axis moving platform drives the top film taking device to move; The top film picking device and the bottom film picking device each include: a mounting frame; two sets of transverse sliding frames slidably connected to the transverse sides of the mounting frame, and the two sets of transverse sliding frames are arranged relative to each other; the transverse sliding frame is provided with a longitudinal connecting rod extending in the longitudinal direction and at least one set of first grabbing members; the two sets of longitudinal sliding frames are slidably connected to the longitudinal sides of the mounting frame, and the two sets of longitudinal sliding frames are arranged relative to each other; the longitudinal sliding frame is provided with a transverse connecting rod extending in the transverse direction and at least one set of second grabbing members; four sets of connecting components are respectively arranged at the four corners of the mounting frame, and the connecting components are slidably connected to the longitudinal connecting rod and the transverse connecting rod; the connecting component is provided with at least one set of third grabbing members; at least one set of driving mechanism for driving the two sets of transverse sliding frames to move relative to each other and driving the two sets of longitudinal sliding frames to move relative to each other; A controller is connected to the first conveying device, the second conveying device, the third conveying device, the shell conveying device, the bottom film conveying device and the top film conveying device.

2. The display screen film laminating device according to claim 1, characterized in that: Each of the transverse sliding frames and the longitudinal sliding frames corresponds to a set of driving mechanisms respectively; or, the two groups of transverse sliding frames share a set of driving mechanisms, and the two groups of longitudinal sliding frames share a set of driving mechanisms; or, the two groups of transverse sliding frames and the two groups of longitudinal sliding frames share a set of driving mechanisms.

3. The display screen film laminating device according to claim 2, characterized in that: The two groups of transverse sliding frames and the two groups of longitudinal sliding frames share a driving mechanism; the driving mechanism includes a driving motor, a transverse belt group and a longitudinal belt group, and the driving motor, the transverse belt group and the longitudinal belt group are all arranged on a mounting frame, and the output shaft of the driving motor is transmission-connected with the transverse belt group and the longitudinal belt group; the two groups of transverse sliding frames are respectively fixedly connected to the two conveying surfaces of the transverse belt group, and the distances from the two groups of transverse sliding frames to the midpoint of the travel of the transverse belt group are equal; the two groups of longitudinal sliding frames are respectively fixedly connected to the two conveying surfaces of the longitudinal belt group, and the distances from the two groups of longitudinal sliding frames to the midpoint of the travel of the longitudinal belt group are equal.

4. The display screen film laminating device according to claim 1, characterized in that: The connecting assembly is further provided with a lifting cylinder, the base of the lifting cylinder is fixed on the connecting assembly, and the third grabbing member is installed on the push rod of the lifting cylinder.

5. The display screen film laminating device according to claim 1, characterized in that: The first conveying device and the third conveying device each include a first conveying roller and a centering mechanism; the centering mechanism includes a centering cylinder, a centering belt group, two sets of centering slides, and at least one centering rail; the centering rail, the centering cylinder, and the centering belt group are arranged below the conveying surface of the first conveying roller; the length direction of the centering rail is consistent with the movement direction of the centering cylinder and is perpendicular to the conveying direction of the first conveying roller; The centering slide is slidably connected to the centering slide rail, and the two groups of centering slides are fixedly connected to the two conveying surfaces of the centering belt group respectively, and the distances between the two groups of centering slides and the midpoint of the stroke of the centering belt group are equal; the seat body of the centering cylinder is connected to the frame body of the first conveying roller, and the push rod of the centering cylinder is connected to any centering slide; at least one centering splint is also provided on the centering slide, and the centering splint is placed above the conveying surface of the first conveying roller.

6. The display screen film laminating device according to claim 5, characterized in that: The third conveying device also includes a weighing mechanism, which includes a weighing mounting frame, a rack synchronous lifting frame, at least one weighing cylinder and a plurality of weighing sensors. The base of the weighing cylinder is fixed on the frame of the first conveying roller corresponding to the third conveying device, and the push rod of the weighing cylinder is fixed to the weighing mounting frame; the rack of the rack synchronous lifting frame is fixed on the frame of the first conveying roller corresponding to the third conveying device, and the frame of the rack synchronous lifting frame is fixedly connected to the weighing mounting frame; the weighing sensors are arranged at intervals on the weighing mounting frame, and the operation of the weighing cylinder can drive the weighing sensors to extend out of the conveying surface of the first conveying roller corresponding to the third conveying device.

7. The display screen film laminating device according to claim 5, characterized in that: The third conveying device also includes at least one set of first material stopping mechanism, which includes a first material stopping cylinder and a first material stopping plate. The base of the first material stopping cylinder is fixed on the frame of the first conveying roller corresponding to the third conveying device, and the push rod of the first material stopping cylinder is fixedly connected to the first material stopping plate.

8. The display screen film laminating device according to claim 1, characterized in that: The second conveying device includes a second conveying roller and a transition mechanism; the transition mechanism is placed at the bottom of the second conveying roller, and includes a transition mounting platform, a transition cylinder, a transition motor, at least two groups of rotating components and several transition belt groups; the rotating component includes a first rotating shaft, a second rotating shaft and two swing arms, the first rotating shaft is rotatably connected to the bottom of the transition mounting platform, the second rotating shaft is rotatably connected to the frame of the second conveying roller, and the two ends of the swing arm are rotatably connected to the first rotating shaft and the second rotating shaft respectively; the seat body of the transition cylinder is hinged to the frame of the second conveying roller, and the push rod of the transition cylinder is hinged to the transition mounting platform; the transition belt groups are mounted on the transition mounting platform in parallel with each other, and the transition motor is transmission-connected to the transition belt group and drives all transition belt groups to transmit synchronously; the action of the transition cylinder can drive the conveying surface of the transition belt group to extend out of the conveying surface of the second conveying roller, and the conveying directions of the transition belt group and the second conveying roller are perpendicular to each other.

9. The display screen film laminating device according to claim 8, characterized in that: A second material stopping mechanism is also provided at the end of the second conveying roller, and the second material stopping mechanism includes a material stopping mounting plate, a second material stopping cylinder, a second material stopping plate and at least one guide assembly, wherein the material stopping mounting plate is fixed to the frame of the second conveying roller, the seat body of the second material stopping cylinder is fixed to the material stopping mounting plate, and the push rod of the second material stopping cylinder is fixedly connected to the second material stopping plate; the guide assembly includes a guide column and a guide sleeve, wherein the guide sleeve is fixed to the material stopping mounting plate, the guide column is fixed to the second material stopping plate, and the guide column is slidably connected to the guide sleeve; the second material stopping plate is also rotatably connected to a plurality of guide wheels, and the guide wheels are arranged side by side to form a guide plane.

10. The display screen film laminating device according to claim 1, characterized in that: The shell handling device includes a manipulator and a grabbing mechanism, and the manipulator drives the grabbing mechanism to move; the grabbing mechanism includes a grabbing mounting frame, a grabbing belt group, a grabbing motor and two groups of grabbing sliding frames, and the grabbing mounting frame is connected to the manipulator; the grabbing belt group and the grabbing motor are arranged on the grabbing mounting frame, and the grabbing motor is transmission-connected to the grabbing belt group; the two groups of grabbing sliding frames are respectively slidably connected to the two ends of the grabbing mounting frame, and the two groups of grabbing sliding frames are respectively fixedly connected to the two conveying surfaces of the grabbing belt group, and the distances from the two groups of grabbing sliding frames to the midpoint of the stroke of the grabbing belt group are equal; a number of telescopic components are arranged side by side at the lower end of the grabbing sliding frame, and the telescopic components on the two groups of grabbing sliding frames cooperate to grab the display screen shell.

11. The display screen film laminating device according to claim 10, characterized in that: The telescopic assembly includes an elastic member and a telescopic rod. The grab sliding frame is provided with a limiting through hole corresponding to the telescopic rod one by one. One end of the limiting through hole is provided with a limiting opening that cooperates with the telescopic rod, and the other end is screwed with a sealing plate; the telescopic rod is slidably connected to the limiting through hole and one end of the telescopic rod can extend out of the limiting opening; the elastic member is placed in the limiting through hole, and one end of the elastic member abuts the telescopic rod, and the other end abuts the sealing plate; the outer side of the display screen housing is provided with a limiting groove that cooperates with the telescopic rod.

12. The display screen film laminating device according to claim 11, characterized in that: It also includes a photoelectric sensor corresponding to the telescopic assembly, the photoelectric sensor is fixed on the sealing plate, and the end of the telescopic rod close to the sealing plate is provided with a sensing rod that cooperates with the photoelectric sensor; The shell handling device also includes at least one set of distance measuring sensors and at least two sets of alignment cameras. The distance measuring sensors are arranged on a grabbing mounting frame or a grabbing sliding frame. The alignment cameras are divided into two groups and are respectively arranged on two groups of grabbing sliding frames.

13. The display screen film laminating device according to claim 1, characterized in that: The top film feeding device and the bottom film feeding device each include a film feeding sliding frame, a film limiting mechanism, at least two sets of sliding mechanisms, and at least one set of locking mechanisms. The film limiting mechanism is provided on the film feeding sliding frame and is used to adapt to and limit top films or bottom films of different specifications. The film feeding sliding frame is connected to the second conveying device via the sliding mechanism, and the locking mechanism is used to lock the film feeding sliding frame on the second conveying device. The sliding mechanism includes a sliding rod, a sliding block, a connecting plate and a rotating member, the sliding rod is fixed on the second conveying device, the sliding block is slidably connected to the sliding rod, the rotating member is rotatably connected to the sliding block, and the rotating member is fixed to the connecting plate, and the connecting plate is fixed to the film supply sliding frame.

14. The display screen film laminating device according to claim 13, characterized in that: The film limiting mechanism includes a first film limiting belt group, a second film limiting belt group, two groups of film limiting drive assemblies, two groups of first film limiting sliding frames arranged opposite to each other, and two groups of second film limiting sliding frames arranged opposite to each other, the first film limiting sliding frame and the second film limiting sliding frame are both slidably connected to the film supply sliding frame, and the moving directions of the first film limiting sliding frame and the second film limiting sliding frame are perpendicular to each other; the first film limiting sliding frame and the second film limiting sliding frame are both provided with at least one limiting rod, the limiting rod extends out of the top surface of the film supply sliding frame, and the film supply sliding frame and all the limiting rods cooperate to enclose a limiting space for limiting the top film or the bottom film; The two groups of the first membrane limiting sliding frames are respectively fixedly connected to the two conveying surfaces of the first membrane limiting belt group, and the distances from the two groups of the first membrane limiting sliding frames to the midpoint of the stroke of the first membrane limiting belt group are equal; the two groups of the second membrane limiting sliding frames are respectively fixedly connected to the two conveying surfaces of the second membrane limiting belt group, and the distances from the two groups of the second membrane limiting sliding frames to the midpoint of the stroke of the second membrane limiting belt group are equal; the two groups of the membrane limiting drive assemblies respectively drive the first membrane limiting belt group and the second membrane limiting belt group for transmission, and the membrane limiting drive assembly includes a fixed seat, a crank handle rotatably connected to the fixed seat, and a locking switch for locking the crank handle; The locking mechanism includes a rotary clamping cylinder and a fastener, the fastener is fixed on the output rod of the clamping cylinder, and the film supply sliding frame is provided with a fastening groove that matches the fastener.

15. The display screen film laminating device according to claim 1, characterized in that: The shell stacking device includes a first shell stacking mechanism for stacking display screen shells that have not been film-applied, and a second shell stacking mechanism for stacking display screen shells that have been film-applied; the first shell stacking mechanism and the second shell stacking mechanism each include a stacking platform and a pushing assembly, the stacking platform is provided with a first limit baffle on one side close to the base film conveying device, a second limit baffle is provided at an adjacent side of the first limit baffle, and the pushing assembly is arranged relative to the second limit baffle; the pushing assembly includes a pushing linear moving module and a pushing rod, the pushing linear moving module drives the pushing rod to move relative to the second limit baffle; the pushing linear moving module is connected to a controller; It also includes a fourth conveying roller conveyor for conveying defective products, and the fourth conveying roller conveyor is placed next to the shell conveying device.

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