A large-size LCD screen polarizer tearing and pasting machine

Abstract

The present invention discloses a large-size liquid crystal screen polaroid film peeling and pasting machine, which includes a main frame, a liquid crystal screen transfer mechanism, a polaroid film pasting mechanism and a film peeling roller. The liquid crystal screen transfer mechanism at least includes a transfer platform, a lateral movement module and a lifting module for moving the liquid crystal screen to be reworked. The polaroid film pasting mechanism includes a flip frame, a first flip drive component, a second flip drive component and a polaroid film suction plate. The flip frame is hinged in the main frame. The first flip drive component drives the flip frame to lift in the direction close to the polaroid film adsorption side. The second flip drive component drives the polaroid film suction plate to flip 180° in the flip frame. A pressing roller is arranged in the flip frame. The pressing roller is connected to a pressing drive device. The film peeling roller is connected to the film peeling drive component and can be rotatably assembled on the main frame. The above-mentioned large-size liquid crystal screen polaroid film peeling and pasting machine is not only compact in structure and low in equipment cost, but also easy to operate and has high working efficiency.

Description

Technical Field

[0001] The invention belongs to the technical field of liquid crystal screen manufacturing, and in particular relates to a large-size liquid crystal screen polarizer tearing and pasting all-in-one machine. Background Art

[0002] Defective products will be produced during the bonding of polarizers for LCD screens, which requires rework and repair. Polarizer tearing equipment and polarizer bonding equipment are both indispensable equipment for handling defective polarizers for LCD screens. The existing polarizer tearing equipment and polarizer bonding equipment are two separate devices, of which the polarizer tearing equipment mostly uses a rubber roller to tear off. The LCD screen is placed on the platform, and a corner of the polarizer is manually torn off. The rubber roller is clamped, and the rubber roller rotates to tear off the polarizer while driving the LCD screen forward. Polarizer bonding equipment mostly uses manual alignment of the polarizer and the LCD screen, tearing off the polarizer protective film, and moving the rollers for pressing to complete the bonding. Obviously, the existing rework and repair of LCD polarizers has the following shortcomings:

[0003] 1) The equipment occupies a large area and is costly;

[0004] 2) Manual turnover of LCD screens is required, which is not only inconvenient to operate, but also easy to damage the LCD screen, and the rework efficiency is low, especially for large-size LCD screens. Summary of the invention

[0005] The purpose of the present invention is to provide a large-size liquid crystal screen polarizer tearing and pasting all-in-one machine to solve the problems of high cost, low efficiency and easy damage to the liquid crystal screen in the prior art of large-size liquid crystal screen polarizer rework.

[0006] To achieve this object, the present invention adopts the following technical solutions:

[0007] A large-size liquid crystal screen polarizer tearing and pasting machine, comprising:

[0008] The main frame has one side as the entry and exit side of the LCD screen to be reworked, and the other side as the polarizer adsorption side.

[0009] The LCD screen transfer mechanism at least comprises a transfer platform for moving the LCD screen to be reworked, a transverse movement module and a lifting module. The transverse movement module drives the transfer platform to enter or move out of the bottom of the main frame, and the lifting module drives the transfer platform to perform lifting actions.

[0010] The polarizer laminating mechanism comprises a flip frame, a first flip driving component, a second flip driving component and a polarizer suction plate, wherein the flip frame is arranged in the main frame and one side of the flip frame is hinged on the main frame, the first flip driving component drives the flip frame to be lifted in the main frame along its hinged side toward the direction close to the polarizer adsorption side, the second flip driving component drives the polarizer suction plate to flip 180° in the flip frame, a pressing roller for pressing the polarizer on the polarizer suction plate onto the liquid crystal screen is arranged at one end of the flip frame close to the inlet and outlet side, and the pressing roller is connected to a pressing driving device,

[0011] The film-tearing roller is rotatably mounted on the inlet and outlet sides of the main frame, and the film-tearing driving assembly drives the film-tearing roller to rotate.

[0012] As a further improvement of the present solution, the large-size LCD screen polarizer tearing and laminating machine also includes a mobile trolley, the LCD screen to be reworked is placed on the mobile trolley, the mobile trolley moves to the loading position and the mobile trolley is lifted by the transfer platform for loading and unloading.

[0013] As a further improvement of the present solution, the LCD screen transfer mechanism also includes a longitudinal moving module and a rotating module. The transverse moving module is located at the bottom and is provided with a transverse moving connecting plate. The lifting module is arranged on the transverse moving connecting plate and is provided with a lifting connecting plate. The longitudinal moving module is arranged on the lifting connecting plate and is provided with a longitudinal moving connecting plate. The rotating module is arranged on the longitudinal moving connecting plate and is connected to the transfer platform.

[0014] As a further improvement of the present solution, a visual detection device for detecting the relative positions of the polarizer and the liquid crystal screen is installed on the main frame. The visual detection device communicates with the liquid crystal screen transfer mechanism through a controller, and the liquid crystal screen transfer mechanism corrects the positions of the polarizer and the liquid crystal screen through the visual detection device.

[0015] As a further improvement of the present solution, a rotation auxiliary cylinder is hingedly connected to the middle parts of two side edges adjacent to the hinged side edges of the main frame and the flip frame.

[0016] As a further improvement of the present solution, the first flipping drive assembly includes a first flipping motor, both ends of the hinged side of the flip frame have rotating shafts extending outward, and rotating shaft seats are provided on the main frame to cooperate with the rotating shafts, and the output shaft of the first flipping motor is connected to one of the rotating shafts through a transmission member.

[0017] As a further improvement of the present solution, the second flip drive assembly includes a second flip motor and a flip shaft, one end of the flip shaft is rotatably mounted on the hinged side of the flip frame through a bearing seat, and the other end is rotatably mounted on the opposite side of the hinged side through a bearing seat, and a mounting frame is fixed on the flip shaft, the polarizer suction plate is assembled on the mounting frame, and the output shaft of the second flip motor is connected to the flip shaft through a transmission member.

[0018] As a further improvement of the present solution, a supporting roller for supporting the LCD screen is rotatably provided below the film tearing roller to prevent the LCD screen from being damaged due to excessive force. The film tearing drive assembly includes a film tearing drive motor and a transmission assembly. The film tearing drive motor drives the film tearing roller to rotate through the transmission assembly.

[0019] As a further improvement of the present scheme, the transverse movement module includes a bottom support frame, two transverse movement linear guides, a driving rack and a transverse movement driving motor, the two transverse movement linear guides and the driving rack are fixed to the bottom support frame along the length direction, the transverse movement connecting plate is assembled on the transverse movement linear guide through a slider, and a driving gear meshing with the driving rack is installed on the output shaft of the transverse movement driving motor, the lifting module includes a plurality of lifting seats and a lifting driving motor, the plurality of lifting seats are installed on the transverse movement connecting plate, and the lifting shafts of the plurality of lifting seats are all connected to the bottom of the lifting connecting plate, and the lifting driving motor drives the lifting shafts of the plurality of lifting seats to rise or fall synchronously through a transmission component consisting of a transmission shaft, a worm gear and a worm.

[0020] As a further improvement of the present scheme, the longitudinal moving module includes a longitudinal driving motor, two longitudinal linear guides and a ball screw pair. The two longitudinal linear guides are fixed on the lifting connecting plate at parallel intervals in the longitudinal direction. The longitudinal moving connecting plate is assembled on the two longitudinal linear guides through a slider. The longitudinal driving motor is connected to the ball screw pair. The nut of the ball screw pair is connected to the longitudinal moving connecting plate. The rotating module includes a rotating driving motor, an arc guide rail and a rotating transmission assembly. The arc guide rail is installed on the longitudinal moving connecting plate. The transfer platform is installed on the arc guide rail through a slider. The rotating driving motor drives the transfer platform to rotate along the arc guide rail through the rotating transmission assembly.

[0021] The beneficial effects of the present invention are that, compared with the prior art, the large-size liquid crystal screen polarizer tearing and pasting integrated machine has the following advantages:

[0022] 1) The two functions of polarizer tearing and polarizer laminating are integrated into one device, saving space and reducing equipment costs;

[0023] 2) The equipment uses a trolley to load and unload materials, reducing the number of manual handling times and thus reducing the probability of damage;

[0024] 3) The polarizer suction plate can realize bidirectional rotation. When the polarizer is attached, the polarizer suction plate can be close to a vertical state, and the adsorption surface of the polarizer suction plate can be turned to the outside to face the operator, which is convenient for operation and improves work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a three-dimensional structural schematic diagram of a large-size liquid crystal screen polarizer peeling and pasting all-in-one machine provided by a specific embodiment of the present invention;

[0026] Figure 2 This is a front view of a large-size liquid crystal screen polarizer peeling and pasting machine provided by a specific embodiment of the present invention;

[0027] Figure 3 It is a top view of a large-size liquid crystal screen polarizer tearing and pasting all-in-one machine provided by a specific embodiment of the present invention;

[0028] Figure 4 It is a side view of a large-size liquid crystal screen polarizer peeling and pasting all-in-one machine provided by a specific embodiment of the present invention;

[0029] Figure 5 It is a three-dimensional structural schematic diagram of a polarizer laminating mechanism of a large-size liquid crystal screen polarizer tearing and laminating machine provided by a specific embodiment of the present invention;

[0030] Figure 6 It is a three-dimensional structural schematic diagram of a liquid crystal screen transfer mechanism of a large-size liquid crystal screen polarizer tearing and pasting machine provided by a specific embodiment of the present invention;

[0031] Figure 7 It is a front view of a liquid crystal screen transfer mechanism of a large-size liquid crystal screen polarizer tearing and pasting machine provided by a specific embodiment of the present invention;

[0032] Figure 8 It is a side view of a liquid crystal screen transfer mechanism of a large-size liquid crystal screen polarizer tearing and pasting machine provided by a specific embodiment of the present invention;

[0033] Fig. 9 This is a state diagram of manually laminating polarizers using a large-size liquid crystal screen polarizer tearing and laminating machine provided by a specific embodiment of the present invention. DETAILED DESCRIPTION

[0034] The technical solution of the present invention is further described below with reference to the accompanying drawings and through specific implementation methods.

[0035] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the relevant drawings. Preferred embodiments of the present invention are given in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thoroughly and comprehensively understood. It should be noted that when a component is referred to as "fixed to" another component, it can be directly on the other component or there can also be a central component. When a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be a central component at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are only for illustrative purposes and are not intended to be the only implementation method. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those generally understood by technicians in the technical field of the present invention. The terms used in the specification of the present invention herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0036] See also Figures 1 to 9 As shown, in the present embodiment, a large-size LCD screen polarizer tearing and pasting machine includes a main frame 1, an LCD screen transfer mechanism 2, a polarizer pasting mechanism 3, a film tearing roller 4 and a loading and unloading trolley 5. One side of the main frame 1 serves as the entry and exit side of the LCD screen 11 to be reworked, and the other side adjacent to the entry and exit side serves as the polarizer adsorption side. The loading and unloading trolley 5 includes a frame 50, an operating armrest 51, running wheels 52 and a table panel 53. An operating armrest 51 is provided on one side of the frame 50, and running wheels 52 are installed at the four corners of the bottom of the frame 50. The top of the frame 50 is provided with a table panel 53 for placing the LCD screen 11 to be reworked.

[0037] The LCD screen transfer mechanism 2 is used to drive the loading and unloading trolley 5 to rise and fall, enter or move out of the bottom of the main frame 1, and correct the position of the polarizer when it is attached. It includes a transfer platform 20, a lateral movement module 21, a lifting module 22, a longitudinal movement module 23 and a rotation module 24. The lateral movement module 21 includes a bottom support frame 210 extending into the bottom of the main frame 1, two lateral movement linear guides 211, a driving rack 212 and a lateral movement drive motor 213. The two lateral movement linear guides 211 and the driving rack 212 are connected to the bottom of the main frame 1. The rack 212 is fixed to the bottom support frame 210 along the length direction, the transverse connecting plate 214 is assembled on the transverse linear guide 211 through a slider, and a driving gear 215 meshing with the driving rack 212 is installed on the output shaft of the transverse driving motor 213. The lifting module 22 includes four lifting seats 220 and a lifting driving motor 221. The four lifting seats 220 are installed on the transverse connecting plate 214, and the lifting axes of the four lifting seats 220 are all connected to the bottom of the lifting connecting plate 222. The lifting driving motor 221 drives the lifting axes of the four lifting seats 220 to rise or fall synchronously through a transmission component composed of a transmission shaft, a worm gear and a worm. The longitudinal moving module 23 includes a longitudinal driving motor 230, two longitudinal linear guides 231 and a ball screw pair 232. The two longitudinal linear guides 231 are fixed on the lifting connecting plate 222 at parallel intervals in the longitudinal direction. The longitudinal connecting plate 233 is assembled on the two longitudinal linear guides 231 through a slider. The driving motor 230 is connected to the ball screw pair 232, the nut of the ball screw pair 232 is connected to the longitudinal connecting plate 233, the rotating module 24 includes a rotating driving motor 240, an arc guide rail 241 and a rotating transmission assembly 242, the arc guide rail 241 is installed on the longitudinal connecting plate 233, the transfer platform 20 is installed on the arc guide rail 233 through a slider, and the rotating driving motor 240 drives the transfer platform 20 to rotate along the arc guide rail 241 through the rotating transmission assembly 242.

[0038] The polarizer laminating mechanism 3 is used to automatically laminat the polarizer and the liquid crystal screen after manual loading, and includes a flip frame 30, a first flip drive assembly 31, a second flip drive assembly 32 and a polarizer suction plate 33. The flip frame 30 is arranged in the main frame 1 and one side of it is hinged on the main frame 1. The first flip drive assembly 31 drives the flip frame 30 to lift up along its hinged side in the main frame 1 toward the polarizer adsorption side. The first flip drive assembly 31 includes a first flip motor 310. Both ends of the hinged side of the flip frame 30 have rotating shafts 311 extending outward, and rotating shaft seats are provided on the main frame 1 to cooperate with the rotating shaft. The output shaft of the first flip motor 310 is connected to one of the rotating shafts 31 through a transmission member. 1 is connected, the top of the main frame 1 is hinged with the middle of the two sides adjacent to the hinged side of the flip frame 30 with a rotation auxiliary cylinder 312, the second flip driving assembly 32 drives the polarizer suction plate 33 to flip 180° in the flip frame 30, the second flip driving assembly 32 includes a second flip motor 320 and a flip shaft 321, one end of the flip shaft 321 is rotatably mounted on the hinged side of the flip frame 30 through a bearing seat, and the other end is rotatably mounted on the opposite side of the hinged side through a bearing seat, and two mounting frames 322 are fixed on the flip shaft 321 in parallel and at intervals, the polarizer suction plate 33 is assembled on the mounting frame 322, and the output shaft of the second flip motor 320 drives the flip shaft 321 to rotate through a transmission member.

[0039] A pressing roller 6 for pressing the polarizer on the polarizer suction plate 33 onto the liquid crystal screen is provided at one end of the flip frame 30 near the inlet and outlet side, and the pressing roller 6 is connected to a pressing drive cylinder 7. The film tearing roller 4 is rotatably assembled on the inlet and outlet side of the main frame 1, and the film tearing drive assembly drives the film tearing roller 4 to rotate. A supporting roller 8 for supporting the liquid crystal screen is rotatably provided below the film tearing roller 4 to prevent the liquid crystal screen from being damaged due to excessive force. The film tearing drive assembly includes a film tearing drive motor 9, and the film tearing drive motor 9 drives the film tearing roller 4 to rotate through a transmission assembly of a synchronous belt and a synchronous wheel assembly.

[0040] A visual inspection device 10 for detecting the relative positions of the polarizer and the liquid crystal screen is installed on the top of the main frame 1. The visual inspection device 10 communicates with the liquid crystal screen transfer mechanism 2 through a controller, and the liquid crystal screen transfer mechanism 2 corrects the positions of the polarizer and the liquid crystal screen through the visual inspection device 10.

[0041] When reworking the LCD screen 11, the film needs to be torn off first, and then a new polarizer needs to be re-attached. The specific operation is as follows:

[0042] When tearing the film: manually rotate the LCD screen whose polarizer needs to be torn off to a certain angle and place it on the designated position of the loading and unloading trolley 5 (generally 45°, to facilitate tearing off the polarizer), push the loading and unloading trolley 5 to the loading position, and the lifting module 22 lifts the loading and unloading trolley 5 to a certain height through the transfer platform 20, and the transverse module 21 drives the transfer platform 20 to move to the film tearing position in the direction close to the main frame 1. Manually tear off a corner of the outer polarizer and stick it on the film tearing roller 4. Start the equipment, and the transverse module 21 drives the transfer platform 20 to move away from the main frame 1. At the same time, the film tearing drive motor 9 drives the film tearing roller 4 to rotate and collect the film, and the support roller 8 supports the LCD screen to prevent damage caused by excessive force. The transverse module 21 drives the loading and unloading trolley 5 to move to the outside of the main frame 1, and then the lifting module 22 descends and resets, and the film tearing is completed.

[0043] When the polarizer is attached: start the equipment, the polarizer suction plate 33 is rotated by the first flip drive assembly 31 and the second flip drive assembly 32, so that the polarizer suction plate 33 is close to the vertical state (70°-90°), and the adsorption surface of the polarizer suction plate 33 is turned to the outside to face the operator. The polarizer is manually placed at the designated position of the polarizer suction plate 33 and adsorbed, and the polarizer protective film is torn off and inspected. After completion, the polarizer suction plate 33 is rotated by the first flip drive assembly 31 and the second flip drive assembly 32, so that the polarizer suction plate 33 is flipped to a horizontal state, and the adsorption surface of the polarizer suction plate 33 is turned to the lower side, and the polarizer faces the ground. The LCD screen that needs to be attached with the polarizer is manually placed horizontally at the designated position of the loading and unloading trolley 5, and the loading and unloading trolley 5 is pushed to the loading position. The lifting module 22 lifts the loading and unloading trolley 5 to a certain height through the transfer platform 20, and the lateral module 21 drives the transfer platform 20 to move to the bonding position in the direction close to the main frame 1. The visual inspection device 10 determines the relative position of the polarizer and the LCD screen, and the LCD screen transfer mechanism 2 makes corrections based on the visual position. After the correction is completed, the lamination drive cylinder 7 drives the lamination roller 6 to press down (the pressure is adjustable), and the lateral movement module 21 drives the loading and unloading trolley 5 to move to the outside of the main frame 1, and then the lifting module 22 descends and resets, and the lamination is completed.

[0044] Note that the above are only preferred embodiments of the present invention and the technical principles used. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and that various obvious changes, readjustments and substitutions can be made by those skilled in the art without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in more detail through the above embodiments, the present invention is not limited to the above embodiments, and may include more other equivalent embodiments without departing from the concept of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. A large-size LCD screen polarizer tearing and pasting machine, characterized in that: These include, The main frame has one side as the entry and exit side of the LCD screen to be reworked, and the other side as the polarizer adsorption side. The LCD screen transfer mechanism at least comprises a transfer platform, a lateral movement module and a lifting module for moving the LCD screen to be reworked. The lateral movement module drives the transfer platform to enter or move out of the bottom of the main frame, and the lifting module drives the transfer platform to perform lifting actions. The polarizer laminating mechanism comprises a flip frame, a first flip driving component, a second flip driving component and a polarizer suction plate, wherein the flip frame is arranged in the main frame and one side of the flip frame is hinged on the main frame, the first flip driving component drives the flip frame to be lifted in the main frame along its hinged side toward the direction close to the polarizer adsorption side, the second flip driving component drives the polarizer suction plate to flip 180° in the flip frame, a pressing roller for pressing the polarizer on the polarizer suction plate onto the liquid crystal screen is arranged at one end of the flip frame close to the inlet and outlet side, and the pressing roller is connected to a pressing driving device, The film-tearing roller is rotatably mounted on the inlet and outlet sides of the main frame, and the film-tearing driving assembly drives the film-tearing roller to rotate; The first flip driving assembly includes a first flip motor, both ends of the hinged side of the flip frame extend outwardly with a rotating shaft, and a rotating shaft seat is provided on the main frame to match the rotating shaft, and the output shaft of the first flip motor is connected to one of the rotating shafts through a transmission member; The second flip driving assembly includes a second flip motor and a flip shaft, one end of the flip shaft is rotatably mounted on the hinged side of the flip frame through a bearing seat, and the other end is rotatably mounted on the opposite side of the hinged side through a bearing seat, and a mounting frame is fixed on the flip shaft, the polarizer suction plate is assembled on the mounting frame, and the output shaft of the second flip motor is connected to the flip shaft through a transmission member.

2. The large-size LCD screen polarizer tearing and pasting machine according to claim 1 is characterized in that: The large-size LCD screen polarizer tearing and pasting machine also includes a moving trolley, the LCD screen to be reworked is placed on the moving trolley, and the moving trolley moves to the loading position and is lifted up by the transfer platform to load and unload.

3. The large-size LCD screen polarizer tearing and pasting machine according to claim 1 is characterized in that: The LCD screen transfer mechanism also includes a longitudinal moving module and a rotating module. The transverse moving module is located at the bottom and is provided with a transverse moving connecting plate. The lifting module is arranged on the transverse moving connecting plate and is provided with a lifting connecting plate. The longitudinal moving module is arranged on the lifting connecting plate and is provided with a longitudinal moving connecting plate. The rotating module is arranged on the longitudinal moving connecting plate and is connected to the transfer platform.

4. The large-size LCD screen polarizer tearing and pasting machine according to claim 1, characterized in that: A visual detection device for detecting the relative position of the polarizer and the liquid crystal screen is installed on the main frame. The visual detection device communicates with the liquid crystal screen transfer mechanism through a controller, and the liquid crystal screen transfer mechanism corrects the position of the polarizer and the liquid crystal screen through the visual detection device.

5. The large-size LCD screen polarizer tearing and pasting machine according to claim 1, characterized in that: The middle parts of the two side edges adjacent to the hinged side edges of the main frame and the flip frame are both hingedly connected with a rotation auxiliary cylinder.

6. The large-size LCD screen polarizer tearing and pasting machine according to claim 1, characterized in that: A supporting roller for supporting the liquid crystal screen is rotatably arranged below the film-tearing roller. The film-tearing driving assembly includes a film-tearing driving motor and a transmission assembly. The film-tearing driving motor drives the film-tearing roller to rotate through the transmission assembly.

7. The large-size LCD screen polarizer tearing and pasting machine according to claim 3, characterized in that: The transverse movement module includes a bottom support frame, two transverse movement linear guides, a driving rack and a transverse movement driving motor. The two transverse movement linear guides and the driving rack are fixed to the bottom support frame along the length direction. The transverse movement connecting plate is assembled on the transverse movement linear guide through a slider. A driving gear meshing with the driving rack is installed on the output shaft of the transverse movement driving motor. The lifting module includes a plurality of lifting seats and a lifting driving motor. The plurality of lifting seats are installed on the transverse movement connecting plate, and the lifting shafts of the plurality of lifting seats are all connected to the bottom of the lifting connecting plate. The lifting driving motor drives the lifting shafts of the plurality of lifting seats to rise or fall synchronously through a transmission component composed of a transmission shaft, a worm gear and a worm.

8. The large-size LCD screen polarizer tearing and pasting machine according to claim 7, characterized in that: The longitudinal moving module includes a longitudinal driving motor, two longitudinal linear guides and a ball screw pair. The two longitudinal linear guides are fixed on the lifting connecting plate at parallel intervals in the longitudinal direction. The longitudinal connecting plate is assembled on the two longitudinal linear guides through a slider. The longitudinal driving motor is connected to the ball screw pair. The nut of the ball screw pair is connected to the longitudinal connecting plate. The rotating module includes a rotating driving motor, an arc guide rail and a rotating transmission assembly. The arc guide rail is installed on the longitudinal connecting plate. The transfer platform is installed on the arc guide rail through a slider. The rotating driving motor drives the transfer platform to rotate along the arc guide rail through the rotating transmission assembly.

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