Automatic polarizer cleaning machine

Abstract

The present invention discloses an automatic polarizer scrubbing machine, including a material box mechanism, a material taking mechanism, a front scrubbing platform, a front scrubbing mechanism, a back scrubbing suction table, a back scrubbing mechanism and a material unloading transmission mechanism. The material box mechanism is arranged on one side of the frame, the front scrubbing platform is arranged on one side of the material box mechanism, the material taking mechanism is arranged between the material box mechanism and the front scrubbing platform; the front scrubbing mechanism is arranged above the front scrubbing platform; the back scrubbing mechanism is arranged on one side of the front scrubbing platform; the material unloading transmission mechanism is arranged on one side of the back scrubbing mechanism. The present invention integrates the processes of simultaneously loading, taking, front scrubbing, back scrubbing and unloading correction of multiple polarizers, and has the functions of material extraction, air blowing to separate the material sheets, shaking and tension to remove multiple sheets, scrubbing to prevent deviation, automatic tensioning of dust-free cloth, uniform scrubbing spray and the like, which effectively improves the scrubbing efficiency and quality.

Description

Technical Field

[0001] The invention relates to the field of automated manufacturing, in particular to an automatic polarizer cleaning machine. Background Art

[0002] Flat panel display devices are human-computer interaction carriers that realize text and image display. They are mainly composed of display modules, backlight modules and touch modules. The display module is composed of display panels, polarizers, driver chips (ICs), circuit boards (PCBs and FPCs) and other components. The production of flat panel display devices is divided into front-end arrays, box-making processes and back-end module assembly processes. The front-end process is used to produce display panels, and the back-end process is used to assemble display panels, polarizers, backlight modules, touch modules and other components into flat panel display devices. The front-end process production equipment is currently mainly provided by Japanese, Korean and American companies, and it is basically impossible to produce it domestically; in the back-end process production equipment, a few domestic companies have achieved breakthroughs and are gradually replacing imported equipment. The display panel is the main component to realize the display function. In order to assemble it into a display device, polarizers need to be attached to both sides of the panel (LCD panels need to attach a polarizer on the upper and lower sides, and OLED panels need to attach a polarizer on the top) to achieve directional propagation of light.

[0003] Before attaching the polarizer, the polarizer attachment surface needs to be cleaned to remove impurities, dust and other adhesions on the attachment surface to ensure the subsequent polarizer attachment quality and reduce defective attachment products; therefore, it is necessary to design a device for cleaning the polarizer before attaching the polarizer. Summary of the invention

[0004] The technical problem to be solved by the present invention is to address the deficiencies of the above-mentioned prior art and to provide an automatic polarizer cleaning machine that integrates the processes of loading, removing, front side scrubbing, back side scrubbing and unloading correction of multiple polarizers at the same time, and has the functions of material diverting and exporting, air blowing to separate the sheets, shaking and tensioning to remove multiple sheets, scrubbing to prevent deviation, automatic tensioning of the dust-free cloth, uniform scrubbing spray, etc., which effectively improves the scrubbing efficiency and quality.

[0005] The technical solution adopted by the present invention is as follows: an automatic polarizer scrubbing machine, comprising a material box mechanism, a material taking mechanism, a front scrubbing platform, a front scrubbing mechanism, a back scrubbing suction table, a back scrubbing mechanism and a material unloading transmission mechanism, wherein the material box mechanism is arranged on one side of the frame, the front scrubbing platform is arranged on one side of the material box mechanism, the material taking mechanism is arranged across the material box mechanism and the front scrubbing platform, and takes out a single polarizer stacked in the material box mechanism and places it on the front scrubbing platform; the front scrubbing mechanism is arranged across the top of the front scrubbing platform, and The front side of the polarizer on the front side scrubbing platform is scrubbed from top to bottom at the same time; the above-mentioned back side scrubbing mechanism is arranged on one side of the front side scrubbing platform, the back side scrubbing suction platform is arranged above the back side scrubbing mechanism, the back side scrubbing suction platform absorbs the polarizer after the front side scrubbing from the front side scrubbing platform, and the back side scrubbing mechanism scrubs the back side of the polarizer from bottom to top; the above-mentioned unloading transmission mechanism is arranged on one side of the back side scrubbing mechanism, the back side scrubbing suction platform places the polarizer after the back side scrubbing is completed on the unloading transmission mechanism, and the polarizer is linearly transmitted and initially positioned through the unloading transmission mechanism;

[0006] The material box mechanism includes a material shifting component and a box body component. The box body component is suspended to support the stacked polarizers. The material shifting component is inserted under the box body component to lift the polarizers and shift the polarizers upwards, and separates two adjacent polarizers by blowing air from the side.

[0007] The front scrubbing mechanism and the back scrubbing mechanism include at least two sets of scrubbing heads arranged at intervals. The output end of the scrubbing head presses the strip-shaped dust-free cloth against the polarizer and sprays scrubbing liquid to wet the dust-free cloth. The polarizer and the dust-free cloth move relative to each other, and the dust-free cloth cleans the polarizer.

[0008] Preferably, the material box mechanism includes at least two sets of material box components arranged in parallel, and each material box component includes a material removing component and a box body component respectively; the box body component includes a support plate, a support, an air nozzle and a waste box, wherein the support plate includes at least two support plates, the support plates are connected to each other and arranged vertically to form a box-shaped space, the two sides of the box-shaped space are open surfaces, and at least two baffles are arranged at intervals; the support is horizontally arranged at the lower part of the box-shaped space, and at least two air-avoiding grooves are arranged at intervals on the support, and multiple polarizers to be scrubbed are stacked up and down on the support; the air nozzle is vertically arranged on the side wall of the support plate and close to the upper part of the box-shaped space, the air nozzle is a tubular structure, and at least two air holes are opened on the side wall of the air nozzle close to the box-shaped space. The stacked polarizers are separated by blowing gas through the air holes, so as to take out a single polarizer; the waste box is horizontally arranged on the outside of the support plate, and the multiple polarizers taken out of the box-shaped space are placed in the waste box after being detected.

[0009] Preferably, the material-dipping component comprises a material-dipping linear module, a material-dipping slide, a rotating component, a rotating seat and a dial plate, wherein the material-dipping linear module is vertically arranged on the side of the box body component; the material-dipping slide can be slidably connected to the material-dipping linear module and is connected to the output end of the material-dipping linear module; the rotating component is arranged on the material-dipping slide; the rotating seat can be rotatably connected to the material-dipping slide and is connected to the rotating component, and the rotating component drives the rotating seat to rotate; the dial plate is connected to the rotating seat and extends toward the box body component, and at least two air-avoiding grooves are provided on the dial plate, and the air-avoiding grooves on the dial plate are staggered; when the material-dipping slide moves vertically, the dial plate rotates to the vertical direction, and after the dial plate moves to the bottom of the support, the dial plate rotates to the horizontal direction, and moves upward through the air-avoiding groove of the support, supports the polarizer placed on the support, and moves upward along the gap between the side baffles of the box-shaped space to push the polarizer upward;

[0010] The above-mentioned rotating component includes a rotating pillar, a rotating cylinder, a rotating bracket and a rotating shaft, wherein the above-mentioned rotating pillar is vertically connected to the upper part of the material-moving slide; the upper end of the above-mentioned rotating cylinder is rotatably connected to the rotating pillar, and the output end of the rotating cylinder is tilted downward; the above-mentioned rotating bracket is vertically connected to the lower part of the material-moving slide, and the lower part of the rotating bracket is provided with a mounting groove; the above-mentioned rotating shaft is rotatably arranged in the mounting groove at the lower part of the rotating bracket; the above-mentioned rotating seat is connected to the rotating shaft, and the side part of the rotating seat is provided with an extension part extending to the bottom of the rotating cylinder, and a connecting sleeve is rotatably provided at the extension part, and the output end of the rotating cylinder is connected to the connecting sleeve to drive the rotating seat to rotate.

[0011] Preferably, the material picking mechanism includes a material picking linear module, a material picking support plate, a material picking lifting motor, a material picking lifting slide, a material shaking cylinder, a material picking suction nozzle and a stop block, wherein the material picking linear module is arranged on the side of the material box mechanism, the material picking support plate is connected to the material picking linear module, and is driven by the material picking linear module to move linearly; the material picking lifting motor is arranged on the material picking support plate, and the output end is arranged downward; the material picking lifting slide is slidably connected to the material picking support plate in the vertical direction, and is connected to the output end of the material picking lifting motor, and the material picking lifting motor drives the material picking lifting slide to rise and fall through a screw rod Movement; the above-mentioned material shaking cylinders include at least two groups, and the material shaking cylinders are connected to the bottom of the material picking lifting slide in groups of two. The lower part of the material shaking cylinders is connected with a material picking nozzle, and the material picking nozzles at the lower parts of the two material shaking cylinders in the same group suck the polarizer from the material box mechanism; the above-mentioned resistance blocks are respectively connected to the side walls of the two material shaking cylinders, and extend downward to resist the top surface of the polarizer; the material shaking cylinders drive the material picking nozzles to shake, so as to shake off the polarizer adhered to the lower part, and while the material picking nozzles absorb the polarizer upward from both outer sides of the polarizer, the resistance blocks resist the polarizer downward from the inner side, and the polarizer adhered to the lower part falls off through the tension of the polarizer.

[0012] Preferably, the front scrubbing platform comprises a support guide frame, a platform linear module, a platform slide, a platform linear motor, a platform lead screw, a platform lead screw seat, a platform support and a platform suction seat, wherein the support guide frame comprises two, and the two support guide frames are arranged in parallel and spaced apart below the material taking mechanism; the platform linear module is arranged between the two support guide frames; the platform slide can be slidably connected to the support guide frame, and is connected to the output end of the platform linear module, and is driven by the platform linear module to move linearly; the platform linear motor is arranged on the platform slide; The above-mentioned platform screw is rotatably connected to the platform slide along a direction perpendicular to the platform linear module, and is connected to the output end of the platform linear motor; the above-mentioned platform screw seat is sleeved on the platform screw; the above-mentioned platform support is slidably connected to the platform slide along the direction of the platform screw, and is connected to the platform screw seat; when the platform linear motor drives the platform screw to rotate, the platform screw seat drives the platform support to move linearly; the above-mentioned platform suction seat includes at least two, the platform suction seats are evenly spaced on the platform support, and the polarizer taken out by the material taking mechanism is placed on the platform suction seat.

[0013] Preferably, the front scrubbing mechanism and the back scrubbing mechanism include a scrubbing support plate, a cloth roller, a cloth collecting roller, a dust-free cloth, a supporting roller, a cloth pressing assembly and a scrubbing head, wherein the scrubbing support plate is vertically arranged; the cloth roller and the cloth collecting roller are rotatably connected to both sides of the scrubbing support plate, a dust-free cloth is wound on the cloth roller, the outer end of the dust-free cloth extends horizontally along the direction of the scrubbing support plate and is connected to the cloth collecting roller; the supporting roller includes at least two supporting rollers, which are evenly spaced and connected to the side wall of the scrubbing support plate, a supporting distance is formed between adjacent two supporting rollers, the dust-free cloth is supported by the supporting rollers, and is separated by 1 supporting roller. A protruding horizontal scrubbing area is formed on the dust-free cloth at the support interval; a baffle with a diameter larger than the support roller is provided at the end of the support roller to limit the dust-free cloth placed on the support roller; the above-mentioned scrubbing head includes at least two sets, the scrubbing head is arranged corresponding to the scrubbing area, and the output end is facing the scrubbing area, and the scrubbing head pushes the scrubbing area close to the polarizer for scrubbing; the above-mentioned cloth pressing assembly includes at least two sets, the cloth pressing assembly is arranged in the support interval between two adjacent scrubbing areas, and the output direction is the same as that of the scrubbing head, so that scrubbing is completed, and after the scrubbing head releases the dust-free cloth, the cloth pressing assembly presses and tightens the dust-free cloth.

[0014] Preferably, the scrubbing head comprises a scrubbing support, a scrubbing cylinder, a scrubbing slide, a scrubbing seat, a scrubbing pressure plate and a scrubbing liquid pipe, wherein the scrubbing support is connected to the side wall of the scrubbing support plate; the scrubbing cylinder is vertically arranged on the scrubbing support, and the output end is arranged toward the direction of the dust-free cloth; the scrubbing slide is slidably connected to the scrubbing support in the vertical direction, and is connected to the output end of the scrubbing cylinder, and the scrubbing cylinder drives the scrubbing slide to move up and down; the scrubbing seat is connected to the scrubbing slide, and an installation cavity is provided in the scrubbing seat, and the scrubbing seat is close to the dust-free cloth The side surface is a horizontal plane, and is provided with a strip-shaped liquid tank, which passes through the mounting cavity; the scrubbing liquid pipe is arranged in the mounting cavity, and is provided with at least two liquid spray holes, and the scrubbing liquid in the scrubbing liquid pipe is sprayed out through the liquid spray holes and passes through the liquid tank to contact the dust-free cloth; the scrubbing pressure plate includes two pieces, and the two scrubbing pressure plates are respectively connected to the two side walls of the scrubbing seat, and a detachable dust-free cloth is clamped and fixed between the two scrubbing pressure plates, and the detachable dust-free cloth passes through the liquid tank to cover the horizontal surface of the scrubbing seat, so as to reduce the rate and flow rate of the scrubbing liquid derived from the liquid tank contacting the dust-free cloth.

[0015] Preferably, the cloth pressing assembly comprises a cloth pressing seat, a cloth pressing slide, a cloth pressing roller and a cloth pressing spring, wherein the cloth pressing seat is vertically arranged on the scrubbing support plate; the cloth pressing slide is slidably connected to the cloth pressing seat along the vertical direction; the cloth pressing roller is vertically connected to the cloth pressing slide and extends to the side of the dust-free cloth; the cloth pressing spring is vertically arranged, one end of the cloth pressing spring is connected to the cloth pressing slide, and the other end is connected to the scrubbing support plate, and the elastic force of the cloth pressing spring causes the cloth pressing roller to press the dust-free cloth.

[0016] Preferably, the reverse-side scrubbing suction table comprises a suction table linear module, a suction table slide, a suction table linear motor, a suction table slide seat, a suction table lifting motor, a suction table support, a suction table lifting seat and a suction table suction seat, wherein the above-mentioned suction table linear modules include two, and the two suction table linear modules are arranged in parallel and at intervals; the above-mentioned suction table slide is straddled on the two suction table linear modules and connected to the output end of the suction table linear module; the above-mentioned suction table slide seat is slidably arranged on the suction table slide seat, and the suction table linear motor is arranged on one side of the suction table slide seat, and is connected to the suction table slide seat through a screw rod so as to drive the suction table slide seat to move linearly. The suction table support is slidably connected to the lower part of the suction table slide and is connected to the suction table slide through a connecting plate; the suction table lifting motor is arranged on the suction table slide, and the output end extends downward through the suction table slide; the suction table lifting seat is arranged in the suction table support and is connected to the output end of the suction table lifting motor through a screw rod, and the suction table lifting motor drives the suction table lifting seat to move up and down; the suction table suction seat includes at least two blocks, and the suction table suction seats are evenly spaced and arranged at the bottom of the suction table lifting seat, and the suction table suction seat absorbs the polarizer after front scrubbing from the front scrubbing platform through vacuum negative pressure.

[0017] Preferably, the unloading transmission mechanism comprises a transmission bracket, a transmission belt and a pre-positioning component, wherein the transmission bracket is arranged along a straight line direction, the transmission belt is arranged in the transmission bracket, and is driven by a power mechanism to move in a straight line, and the polarizer after the reverse side of the reverse side scrubbing suction table is placed on the transmission belt and outputted outward through the transmission belt; the pre-positioning component is arranged at the outlet end of the transmission belt, and the polarizer on the transmission belt is preliminarily corrected when passing through the pre-positioning component;

[0018] The above-mentioned pre-positioning component includes a pre-positioning support plate, a pre-positioning motor, a pre-positioning belt, a first connecting clamp, a first positioning guide plate, a second connecting clamp and a second positioning guide plate, wherein the above-mentioned pre-positioning support plate is arranged astride the top of the conveyor belt; the above-mentioned pre-positioning motor is arranged on the pre-positioning support plate, and the output end is arranged upward; the above-mentioned pre-positioning belt is arranged on the pre-positioning support plate, and is tensioned by a rotating wheel rotatably arranged on the pre-positioning support plate, and the pre-positioning motor drives the pre-positioning belt to move through a transmission wheel; the above-mentioned first connecting clamp and the second connecting clamp are respectively connected to both sides of the pre-positioning belt; the above-mentioned first positioning guide plate and the second positioning guide plate are respectively arranged vertically on both sides of the conveyor belt, and are respectively connected to the first connecting clamp and the second connecting clamp, and along the moving direction of the conveyor belt, the space width between the first positioning guide plate and the second positioning guide plate gradually decreases, and when the polarizer moves linearly with the conveyor belt, it is limited and corrected by the first positioning guide plate and the second positioning guide plate, and the spacing width between the first positioning guide plate and the second positioning guide plate is adjusted by the pre-positioning motor.

[0019] The beneficial effects of the present invention are:

[0020] In view of the defects and shortcomings of the prior art, the present invention independently developed and designed an automatic polarizer scrubbing machine that integrates the processes of simultaneous loading, removing, front scrubbing, back scrubbing, and unloading correction of multiple polarizers. It has the functions of material extraction, air blowing to separate the sheets, shaking and tensioning to remove multiple sheets, scrubbing to prevent deviation, automatic tensioning of the dust-free cloth, and uniform scrubbing spray, which effectively improves the scrubbing efficiency and quality. The present invention adopts a multi-station design, specifically a 6-station structure, which can realize the loading, transfer, front scrubbing, and back scrubbing of 6 polarizers at the same time, effectively improving the scrubbing capacity. In actual application, the number of stations can be increased or decreased according to the efficiency requirements of the production line. Specifically:

[0021] 1. The present invention is innovatively designed with a material box mechanism for guiding the stacked polarizers upwards for material extraction. The material box mechanism includes 6 sets, which are arranged in parallel and spaced apart. A single set of the material box mechanism includes a box body component and a material-pickup component. The box body component is composed of vertically connected support plates to form a rectangular box-shaped space with an open top. The bottom of the rectangular box-shaped space is a support, and the side is a baffle. Both the support and the baffle are provided with air-avoiding grooves. The polarizers to be scrubbed are stacked up and down on the support, supported by the support, and limited from four sides by the box-shaped space. In addition, a tubular air nozzle is vertically provided on the upper open surface of the box body component, and at least two air holes are evenly spaced apart on the side wall of the air nozzle facing the box-shaped space; a waste box is horizontally provided on the outside of the air nozzle. The material-prying parts of the present invention are arranged at intervals on the side of the box body part, and a rotating component is arranged on the material-prying slide of the material-prying part, and the rotating component includes a rotating pillar, a rotating cylinder, a rotating bracket and a rotating shaft. The rotating pillar is vertically arranged on the material-prying slide, and the upper part of the rotating cylinder is rotatably connected to the rotating pillar, and the rotating bracket is vertically connected to the lower part of the material-prying slide, and a rotating shaft is rotatably arranged in the installation space at the bottom of the rotating bracket; a rotating seat is connected to the rotating shaft, one side of the rotating seat is connected to the output end of the rotating cylinder that is inclined downward, and a paddle is connected to the other side of the rotating seat, and the paddle plate is also provided with an air-avoiding groove body, and the air-avoiding groove body and the air-avoiding grooves provided on the support and the baffle bar of the box body part are inserted and staggered; the power output by the rotating cylinder drives the rotating seat and the paddle plate to rotate; the paddle plate can move upward from below through the gap between the air-avoiding groove of the support and the baffle bar. In the initial state, the paddle is set vertically downward. When the polarizer needs to be pushed outward, the paddle is rotated 90° from the bottom to the horizontal direction, and moves upward in a straight line with the material-paddle slide, passes through the support to lift the stacked polarizers upward, and continues to move upward to push the polarizers upward to the open surface of the material box space so as to take out the polarizers. At the same time, when taking out the polarizers, the air nozzle located on the open surface ejects high-pressure gas toward the material box, and the high-pressure gas acts on the polarizer that has been sucked and lifted, so as to separate the two adjacent polarizers from each other through air pressure, thereby reducing the situation where polarizers that are stuck to each other after being stacked are taken out at the same time, resulting in taking out multiple pieces of material.

[0022] 2. The present invention is innovatively designed with a material taking mechanism for taking out the polarizer from the material box mechanism and transferring it to the front scrubbing platform. The material taking mechanism is arranged across the frame and has the functions of linear movement and lifting movement. In particular, the material taking mechanism of the present invention is provided with 6 groups of material shaking cylinders and abutment blocks. A single group of material shaking cylinders includes two material shaking cylinders, which are arranged at intervals and have a material taking nozzle connected to the bottom. After the material taking nozzle takes out the polarizer from the material box mechanism, the two material shaking cylinders drive the material taking nozzle to shake up and down respectively. Under the vibration of the shaking force, the polarizer adhered to the bottom of the adsorbed polarizer is shaken and dropped, so as to reduce the situation of taking out multiple polarizers. In addition, the present invention further provides a stopper on the inner side of two material shaking cylinders of a single group, the stopper is connected to the side wall of the material shaking cylinder through a connecting plate and extends vertically downward. When the two material taking nozzles suck the polarizer from both sides, the two outer sides of the polarizer are flipped upward. At this time, the downward pressure exerted by the two stoppers on the polarizer has a tendency to deform the polarizer. The tension of the adsorbed polarizer is utilized to bounce off the polarizer adhered to its lower part, thereby reducing the situation of taking out multiple polarizers.

[0023] 3. The present invention is inventively designed with a front scrubbing mechanism and a back scrubbing mechanism. The front scrubbing mechanism and the back scrubbing mechanism have similar structures and functions, but are arranged in opposite directions. The scrubbing part of the front scrubbing mechanism is arranged downward to scrub the upper part of the polarizer, and the scrubbing part of the back scrubbing mechanism is arranged upward to scrub the lower part of the polarizer. The front scrubbing mechanism and the back scrubbing mechanism of the present invention use a strip-shaped dust-free cloth as the scrubbing execution part. The strip-shaped dust-free cloth is stretched and extended in the horizontal direction. At the same time, 6 scrubbing stations are arranged at intervals on the horizontal dust-free cloth. A set of cloth pressing assembly and a scrubbing head are arranged at each scrubbing station. The scrubbing head is used to push the dust-free cloth and approach the polarizer to be scrubbed. The cloth pressing assembly is used to tension and pull the dust-free cloth away from the polarizer. After the scrubbing head presses the dust-free cloth on the polarizer, the scrubbing head sprays scrubbing liquid onto the dust-free cloth to soak the dust-free cloth. The polarizer slides in a straight line under the drive of the front scrubbing platform or the back scrubbing platform, and the dust-free cloth soaked with the scrubbing liquid scrubs the surface of the polarizer clean. After the scrubbing of the 6 polarizers is completed, the dust-free cloth is wound by the cloth collection roller and moves a scrubbing distance as a whole to replace a new scrubbing part for the next scrubbing. Specifically, the dust-free cloth of the present invention is supported and fixed by support rollers evenly spaced on the side walls of the scrubbing support plate. To ensure that the dust-free cloth deviates during the transmission process, a circular baffle with a diameter larger than the support roller is vertically arranged at the outer end of the support roller. The baffle and the scrubbing support plate form a limiting effect on the dust-free cloth, preventing the dust-free cloth from deviating during the winding and moving process, thereby ensuring the scrubbing quality. In addition, the present invention arranges the cloth pressing assembly and the scrubbing head at two adjacent spacings formed between the support rollers, and the output directions are the same. When the scrubbing head is in a natural state, the pressure of the cloth pressing assembly on the dust-free cloth will cause the dust-free cloth to leave the polarizer at the scrubbing head. When scrubbing is required, the power output by the scrubbing head overcomes the force of the cloth pressing assembly to make the dust-free cloth close to the polarizer. When the power of the scrubbing head disappears after scrubbing is completed, the dust-free cloth at the scrubbing head is caused to leave the polarizer under the action of the cloth pressing assembly, thereby avoiding the dust-free cloth from contacting the polarizer when it is replaced, thereby improving the scrubbing quality. The cloth pressing assembly of the present invention comprises a cloth pressing seat, a cloth pressing slide, a cloth pressing roller and a cloth pressing spring. The cloth pressing seat is arranged on a scrubbing support plate, and the cloth pressing slide is slidably connected to the cloth pressing seat along a vertical direction; the cloth pressing roller is vertically connected to the cloth pressing slide and extends to the side of the dust-free cloth; the cloth pressing spring is vertically arranged, one end of the cloth pressing spring is connected to the cloth pressing slide, and the other end is connected to the scrubbing support plate, and the elastic force of the cloth pressing spring causes the cloth pressing roller to press the dust-free cloth.The scrubbing head of the present invention uses a scrubbing seat with a cavity structure inside as an actuator. The bottom surface of the scrubbing seat is a horizontal plane structure, which is used to resist the dust-free cloth and scrub the surface of the polarizer, that is, the scrubbing plane. The width of the scrubbing plane is 20 mm. At the same time, a strip-shaped liquid tank is provided in the middle of the bottom surface of the scrubbing seat, and a scrubbing liquid tube is arranged inside the scrubbing seat. A plurality of spray holes are evenly spaced on the side wall of the scrubbing liquid tube corresponding to the liquid tank. After the external scrubbing liquid is introduced into the scrubbing liquid tube, it is sprayed out through the spray hole, passes through the liquid tank and contacts the dust-free cloth, and soaks the dust-free cloth in contact with the scrubbing plane, so that the dust-free cloth can scrub the polarizer. The inner diameter of the scrubbing liquid tube is The diameter of the spray hole is 0.8mm, and the inner diameter of the spray hole is 0.2mm, so as to control the flow rate of the sprayed cleaning liquid; in addition, since the thickness of the standard dust-free cloth on the market is 0.5mm at most, in order to prevent the spray flow rate from being too large, which may easily cause excessive residual cleaning liquid on the surface of the polarizer during scrubbing, the present invention also has scrubbing pressure plates correspondingly arranged on both sides of the scrubbing seat, and the scrubbing pressure plates can be used to fix a separate dust-free cloth piece, and the dust-free cloth piece covers the surface of the liquid tank to form resistance when the scrubbing liquid is led out. The thickness of the dust-free cloth piece can be selectively stacked according to the actual amount of scrubbing liquid required, and the dust-free cloth piece can be detachably installed through the scrubbing pressure plate, which is convenient for subsequent replacement and use.

[0024] 4. The present invention is also designed with a material unloading transmission mechanism with a correction function. The material unloading transmission mechanism uses a conveyor belt as a material transmission carrier. The polarizer after scrubbing is transmitted to the next workstation through the linear motion of the conveyor belt. In order to ensure the position consistency and accuracy of the exported materials, the end of the material unloading transmission mechanism of the present invention is provided with a pre-positioning component, and a pre-positioning support plate mounted above the conveyor belt is used as a support carrier, and a pre-positioning belt is provided on the upper part of the pre-positioning support plate. At the same time, the upper part of the pre-positioning support plate can also be slidably connected with a first connecting support block and a second connecting support block, and the first connecting support block and the second connecting support block are respectively connected to the two sides of the pre-positioning belt. When the pre-positioning belt moves, the first connecting support block and the second connecting support block move in opposite directions respectively. At the same time, the first positioning guide plate and the second positioning guide plate are vertically connected to the lower part of the first connection support block and the lower part of the second connection support block respectively. The first positioning guide plate and the second positioning guide plate extend vertically to the conveyor belt, and a transmission space is formed between the two. The opening of the transmission space changes from large to small along the moving direction of the conveyor belt. When the polarizer on the conveyor belt moves forward, it is guided and limited by the limiting space formed by the first positioning guide plate and the second positioning guide plate, and the position is positioned while being transmitted. At the same time, the width of the limiting space between the first positioning guide plate and the second positioning guide plate can be adjusted in real time by moving the pre-positioning belt to adapt to the transmission of polarizers of different sizes. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is one of the three-dimensional structural schematic diagrams of the present invention.

[0026] Figure 2This is the second schematic diagram of the three-dimensional structure of the present invention.

[0027] Figure 3 This is the third schematic diagram of the three-dimensional structure of the present invention.

[0028] Figure 4 It is a three-dimensional structural schematic diagram of the material box mechanism of the present invention.

[0029] Figure 5 It is a schematic diagram of the three-dimensional structure of the material box assembly of the present invention.

[0030] Figure 6 for Figure 5 One of the three-dimensional structural schematic diagrams of the middle material-selecting component.

[0031] Figure 7 for Figure 5 The second schematic diagram of the three-dimensional structure of the middle material-selecting component.

[0032] Figure 8 It is one of the three-dimensional structural schematic diagrams of the material taking mechanism of the present invention.

[0033] Fig. 9 This is the second schematic diagram of the three-dimensional structure of the material taking mechanism of the present invention.

[0034] Fig.10 for Figure 8 The enlarged structural diagram at point I in the middle.

[0035] Fig.11 This is one of the three-dimensional structural schematic diagrams of the front scrubbing platform of the present invention.

[0036] Fig.12 This is the second schematic diagram of the three-dimensional structure of the front scrubbing platform of the present invention.

[0037] Fig.13 This is one of the three-dimensional structural schematic diagrams of the front scrubbing mechanism of the present invention.

[0038] Fig.14 This is the second schematic diagram of the three-dimensional structure of the front scrubbing mechanism of the present invention.

[0039] Fig.15 This is the third schematic diagram of the three-dimensional structure of the front scrubbing mechanism of the present invention.

[0040] Fig.16 It is a schematic diagram of the three-dimensional structure of the cloth pressing assembly of the present invention.

[0041] Fig.17 This is one of the three-dimensional structural schematic diagrams of the scrubbing head of the present invention.

[0042] Fig.18 This is one of the three-dimensional structural schematic diagrams of the scrubbing head of the present invention.

[0043] Fig.19 This is a schematic diagram of the three-dimensional structure of the scrubbing head of the present invention after the components are hidden.

[0044] Fig. 20 This is one of the three-dimensional structural schematic diagrams of the reverse side scrubbing mechanism of the present invention.

[0045] Fig.21 This is the second three-dimensional structural schematic diagram of the reverse side scrubbing mechanism of the present invention.

[0046] Fig. 22 This is one of the three-dimensional structural schematic diagrams of the reverse side scrubbing suction table of the present invention.

[0047] Fig.23 This is the second schematic diagram of the three-dimensional structure of the reverse side scrubbing suction table of the present invention.

[0048] Fig.24 This is one of the three-dimensional structural schematic diagrams of the material feeding and conveying mechanism of the present invention.

[0049] Fig.25 This is the second three-dimensional structural schematic diagram of the material feeding and conveying mechanism of the present invention.

[0050] Fig.26 for Fig.25 The enlarged structural diagram at II in the middle. DETAILED DESCRIPTION

[0051] The present invention will be further described below in conjunction with the accompanying drawings:

[0052] like Figures 1 to 26 As shown, the technical solution adopted by the present invention is as follows: an automatic polarizer scrubbing machine, comprising a material box mechanism 2, a material taking mechanism 3, a front scrubbing platform 4, a front scrubbing mechanism 5, a back scrubbing suction table 6, a back scrubbing mechanism 7 and a material unloading transmission mechanism 8, wherein the material box mechanism 2 is arranged on one side of a frame 1, the front scrubbing platform 4 is arranged on one side of the material box mechanism 2, the material taking mechanism 3 is arranged across the material box mechanism 2 and the front scrubbing platform 4, and takes out a single polarizer stacked in the material box mechanism 2 and places it on the front scrubbing platform 4; the front scrubbing mechanism 5 is arranged across the front scrubbing platform 4 The above-mentioned back-side scrubbing mechanism 7 is arranged on one side of the front-side scrubbing platform 4, and the back-side scrubbing suction platform 6 is arranged above the back-side scrubbing mechanism 7. The back-side scrubbing suction platform 6 absorbs the polarizer after the front-side scrubbing from the front-side scrubbing platform 4, and the back-side scrubbing mechanism 7 scrubs the back side of the polarizer from bottom to top; the above-mentioned unloading transmission mechanism 8 is arranged on one side of the back-side scrubbing mechanism 7, and the back-side scrubbing suction platform 6 places the polarizer after the back-side scrubbing is completed on the unloading transmission mechanism 8, and the polarizer is linearly transmitted and initially positioned by the unloading transmission mechanism 8;

[0053] The material box mechanism 2 comprises a material shifting component 21 and a box body component 22. The box body component 22 is suspended to support the stacked polarizers. The material shifting component 21 is inserted under the box body component 22 to lift the polarizers and shift the polarizers upwards, and separates two adjacent polarizers by blowing air from the side.

[0054] The front scrubbing mechanism 5 and the back scrubbing mechanism 7 include at least two sets of scrubbing heads arranged at intervals. The output end of the scrubbing head presses the strip-shaped dust-free cloth against the polarizer and sprays scrubbing liquid to wet the dust-free cloth. The polarizer and the dust-free cloth move relative to each other, and the dust-free cloth cleans the polarizer.

[0055] The material box mechanism 2 includes at least two sets of material box components arranged in parallel, each material box component includes a material shifting component 21 and a box body component 22; the box body component 22 includes a support plate 221, a support seat 222, an air nozzle 223 and a waste box 224, wherein the support plate 221 includes at least two support plates 221, the support plates 221 are connected to each other and arranged vertically to form a box-shaped space, the two sides of the box-shaped space are open surfaces, and at least two baffles are arranged at intervals; the support seat 222 is horizontally arranged at the lower part of the box-shaped space, and the support seat 222 is spaced apart. At least two air-avoiding grooves are provided, and multiple polarizers to be scrubbed are stacked up and down on the support 222; the air nozzle 223 is vertically arranged on the side wall of the support plate 221 and close to the upper part of the box-shaped space. The air nozzle 223 is a tubular structure. At least two air holes are provided on the side wall of the air nozzle 223 close to the box-shaped space. The stacked polarizers are separated by blowing gas through the air holes so as to take out a single polarizer; the waste box 224 is horizontally arranged on the outer side of the support plate 221. The multiple polarizers taken out of the box-shaped space are placed in the waste box 224 after being detected.

[0056] The material-digging component 21 includes a material-digging linear module 211, a material-digging slide 212, a rotating component, a rotating seat 217 and a diverter plate 218, wherein the material-diverter linear module 211 is vertically arranged on the side of the box body component 22; the material-diverter slide 212 is slidably connected to the material-diverter linear module 211 and is connected to the output end of the material-diverter linear module 211; the rotating component is arranged on the material-diverter slide 212; the rotating seat 217 is rotatably connected to the material-diverter slide 212 and is connected to the rotating component, and the rotating component drives the rotating seat 217 to rotate; the diverter plate 218 18 is connected to the rotating seat 217 and extends toward the box body part 22. At least two air-avoiding grooves are formed on the paddle plate 218. The air-avoiding grooves on the paddle plate 218 are arranged alternately with the air-avoiding grooves on the support 222. When the material-pickup slide 212 moves vertically, the paddle plate 218 rotates to the vertical direction. After the paddle plate 218 moves below the support 222, the paddle plate 218 rotates to the horizontal direction and moves upward through the air-avoiding grooves of the support 222 to lift and support the polarizer placed on the support 222, and moves upward along the gap between the side bars of the box-shaped space to push the polarizer upward.

[0057] The above-mentioned rotating component includes a rotating pillar 213, a rotating cylinder 214, a rotating bracket 215 and a rotating shaft 216, wherein the above-mentioned rotating pillar 213 is vertically connected to the upper part of the material-dispensing slide 212; the upper end of the above-mentioned rotating cylinder 214 is rotatably connected to the rotating pillar 213, and the output end of the rotating cylinder 214 is tilted downward; the above-mentioned rotating bracket 215 is vertically connected to the lower part of the material-dispensing slide 212, and a mounting groove is opened at the lower part of the rotating bracket 215; the above-mentioned rotating shaft 216 is rotatably arranged in the mounting groove at the lower part of the rotating bracket 215; the above-mentioned rotating seat 217 is connected to the rotating shaft 216, and the side of the rotating seat 217 is provided with an extension portion extending to the bottom of the rotating cylinder 214, and a connecting sleeve is rotatably provided at the extension portion, and the output end of the rotating cylinder 214 is connected to the connecting sleeve so as to drive the rotating seat 217 to rotate.

[0058] The material picking mechanism 3 includes a material picking linear module 31, a material picking support plate 32, a material picking lifting motor 33, a material picking lifting slide 34, a material shaking cylinder 35, a material picking suction nozzle 36 and a stop block 37, wherein the material picking linear module 31 is arranged on the side of the material box mechanism 2, the material picking support plate 32 is connected to the material picking linear module 31, and is driven by the material picking linear module 31 to move linearly; the material picking lifting motor 33 is arranged on the material picking support plate 32, and the output end is arranged downward; the material picking lifting slide 34 is slidably connected to the material picking support plate 32 in the vertical direction, and is connected to the output end of the material picking lifting motor 33, and the material picking lifting motor 33 drives the material picking lifting slide 34 through a screw rod Lifting movement; the above-mentioned material shaking cylinder 35 includes at least two groups, and the material shaking cylinder 35 is connected to the bottom of the material picking lifting slide 34 in groups of two. The lower part of the material shaking cylinder 35 is connected with a material picking suction nozzle 36, and the material picking suction nozzle 36 at the lower part of the two material shaking cylinders 35 in the same group sucks the polarizer from the material box mechanism 2; the above-mentioned stop block 37 is respectively connected to the side walls of the two material shaking cylinders 35, and extends downward to press against the top surface of the polarizer; the material shaking cylinder 35 drives the material picking suction nozzle 36 to shake so that the polarizer adhered to the lower part is shaken off, and the material picking suction nozzle 36 absorbs the polarizer from both outer sides of the polarizer upwards, while the stop block 37 presses against the polarizer from the inner side downwards, and the polarizer adhered to the lower part is dropped through the tension of the polarizer.

[0059] The front scrubbing platform 4 includes a support guide frame 41, a platform linear module 42, a platform slide 43, a platform linear motor 44, a platform screw 45, a platform screw seat 46, a platform support 47 and a platform suction seat 48, wherein the above-mentioned support guide frame 41 includes two, and the two support guide frames 41 are arranged in parallel and spaced apart below the material picking mechanism 3; the above-mentioned platform linear module 42 is arranged between the two support guide frames 41; the above-mentioned platform slide 43 is slidably connected to the support guide frame 41, and is connected to the output end of the platform linear module 42, and is driven by the platform linear module 42 to move linearly; the above-mentioned platform linear motor 44 is arranged on the platform slide 43; The platform screw 45 is rotatably connected to the platform slide 43 along a direction perpendicular to the platform linear module 42, and is connected to the output end of the platform linear motor 44; the above-mentioned platform screw seat 46 is sleeved on the platform screw 45; the above-mentioned platform support 47 is slidably connected to the platform slide 43 along the direction of the platform screw 45, and is connected to the platform screw seat 46; when the platform linear motor 44 drives the platform screw 45 to rotate, the platform screw seat 46 drives the platform support 47 to move linearly; the above-mentioned platform suction seat 48 includes at least two, and the platform suction seat 48 is evenly spaced on the platform support 47, and the polarizer taken out by the material taking mechanism 3 is placed on the platform suction seat 48.

[0060] The front scrubbing mechanism 5 and the back scrubbing mechanism 7 include a scrubbing support plate 51, a cloth roller 52, a cloth collecting roller 53, a dust-free cloth 54, a support roller 56, a cloth pressing assembly 58 and a scrubbing head 59, wherein the scrubbing support plate 51 is vertically arranged; the cloth roller 52 and the cloth collecting roller 53 are rotatably connected to both sides of the scrubbing support plate 51, the dust-free cloth 54 is wound on the cloth roller 52, the outer end of the dust-free cloth 54 extends horizontally along the direction of the scrubbing support plate 51 and is connected to the cloth collecting roller 53; the support roller 56 includes at least two support rollers 56, which are evenly spaced and connected to the side wall of the scrubbing support plate 51, and a support interval is formed between two adjacent support rollers 56, and the dust-free cloth 54 is supported by the support rollers 56 and is separated by a support interval. A protruding horizontal scrubbing portion 55 is formed on the dust-free cloth 54 at a distance therefrom; a baffle 57 having a diameter greater than that of the support roller 56 is provided at the end of the support roller 56 to limit the dust-free cloth 54 placed on the support roller 56; the above-mentioned scrubbing head 59 includes at least two sets, the scrubbing head 59 is arranged corresponding to the scrubbing portion 55, and the output end is facing the scrubbing portion 55, the scrubbing head 59 pushes the scrubbing portion 55 close to the polarizer for scrubbing; the above-mentioned cloth pressing assembly 58 includes at least two sets, the cloth pressing assembly 58 is arranged in the support distance between two adjacent scrubbing portions 55, and the output direction is the same as that of the scrubbing head 59, so that scrubbing is completed, and after the scrubbing head 59 releases the dust-free cloth 54, the cloth pressing assembly 58 presses and tightens the dust-free cloth 54.

[0061] The scrubbing head 59 includes a scrubbing support 591, a scrubbing cylinder 592, a scrubbing slide 593, a scrubbing seat 594, a scrubbing pressure plate 596 and a scrubbing liquid tube 597, wherein the scrubbing support 591 is connected to the side wall of the scrubbing support plate 51; the scrubbing cylinder 592 is vertically arranged on the scrubbing support 591, and the output end is arranged toward the dust-free cloth 54; the scrubbing slide 593 is slidably connected to the scrubbing support 591 in the vertical direction, and is connected to the output end of the scrubbing cylinder 592, and the scrubbing cylinder 592 drives the scrubbing slide 593 to move up and down; the scrubbing seat 594 is connected to the scrubbing slide 593, and a mounting cavity is arranged in the scrubbing seat 594, and the scrubbing seat 594 is close to the scrubbing slide The side surface near the dust-free cloth is a horizontal plane, and is provided with a strip-shaped liquid groove 595, which passes through the installation cavity; the above-mentioned scrubbing liquid tube 597 is arranged in the installation cavity, and at least two liquid spray holes are provided on the scrubbing liquid tube 597, and the scrubbing liquid in the scrubbing liquid tube 597 is sprayed out through the liquid spray holes and passes through the liquid groove 595 to contact the dust-free cloth 54; the above-mentioned scrubbing pressure plate 596 includes two pieces, and the two scrubbing pressure plates 596 are respectively connected to the two side walls of the scrubbing seat 594, and a detachable dust-free cloth is clamped and fixed between the two scrubbing pressure plates 596. The detachable dust-free cloth passes through the liquid groove 595 to cover the horizontal surface of the scrubbing seat 594, so as to reduce the rate and flow rate of the scrubbing liquid derived from the liquid groove 595 contacting the dust-free cloth 54.

[0062] The cloth pressing assembly 58 includes a cloth pressing seat 581, a cloth pressing slide 582, a cloth pressing roller 583 and a cloth pressing spring 584, wherein the cloth pressing seat 581 is vertically arranged on the scrubbing support plate 51; the cloth pressing slide 582 is slidably connected to the cloth pressing seat 581 along the vertical direction; the cloth pressing roller 583 is vertically connected to the cloth pressing slide 582 and extends to the side of the dust-free cloth 54; the cloth pressing spring 584 is vertically arranged, one end of the cloth pressing spring 584 is connected to the cloth pressing slide 582, and the other end is connected to the scrubbing support plate 51, and the elastic force of the cloth pressing spring 584 causes the cloth pressing roller 583 to press the dust-free cloth 54.

[0063] The reverse side scrubbing suction table 6 includes a suction table linear module 61, a suction table slide 62, a suction table linear motor 63, a suction table slide 64, a suction table lifting motor 65, a suction table support 66, a suction table lifting seat 67 and a suction table suction seat 68, wherein the suction table linear module 61 includes two, and the two suction table linear modules 61 are arranged in parallel and spaced apart; the suction table slide 62 is straddled on the two suction table linear modules 61 and connected to the output end of the suction table linear module 61; the suction table slide 64 is slidably arranged on the suction table slide 62, and the suction table linear motor 63 is arranged on one side of the suction table slide 64, and is connected to the suction table slide 64 through a screw rod, so as to drive the suction table slide 64 to move linearly The suction table support 66 is slidably connected to the lower part of the suction table slide 62, and is connected to the suction table slide 64 through a connecting plate; the suction table lifting motor 65 is arranged on the suction table slide 64, and the output end extends downward through the suction table slide 64; the suction table lifting seat 67 is arranged in the suction table support 66, and is connected to the output end of the suction table lifting motor 65 through a screw rod, and the suction table lifting motor 65 drives the suction table lifting seat 67 to move up and down; the suction table suction seat 68 includes at least two blocks, and the suction table suction seat 68 is evenly spaced at the bottom of the suction table lifting seat 67, and the suction table suction seat 68 absorbs the polarizer after front scrubbing from the front scrubbing platform 4 through vacuum negative pressure.

[0064] The unloading transmission mechanism 8 includes a transmission bracket 81, a transmission belt 82 and a pre-positioning component 83, wherein the transmission bracket 81 is arranged along a straight line direction, the transmission belt 82 is arranged in the transmission bracket 81, and is driven by a power mechanism to move in a straight line, and the polarizer on the reverse side scrubbing suction table 6 after the reverse side scrubbing is placed on the transmission belt 82, and is output to the outside through the transmission belt 82; the pre-positioning component 83 is arranged at the outlet end of the transmission belt 82, and the polarizer on the transmission belt 82 is preliminarily corrected when passing through the pre-positioning component 83;

[0065] The pre-positioning assembly 83 comprises a pre-positioning support plate 831, a pre-positioning motor 832, a pre-positioning belt 833, a first connecting clamp 834, a first positioning guide plate 835, a second connecting clamp 836 and a second positioning guide plate 837, wherein the pre-positioning support plate 831 is straddled above the transmission belt 82; the pre-positioning motor 832 is arranged on the pre-positioning support plate 831, and the output end is arranged upward; the pre-positioning belt 833 is arranged on the pre-positioning support plate 831, and is tensioned by a rotating wheel rotatably arranged on the pre-positioning support plate 831, and the pre-positioning motor 832 drives the pre-positioning belt 833 to move through a transmission wheel; the first connecting clamp 834 is arranged on the transmission belt 82; the pre-positioning motor 832 is arranged on the transmission belt 836, and the output end is arranged upward; the pre-positioning belt 833 is arranged on the pre-positioning support plate 831, and is tensioned by a rotating wheel rotatably arranged on the pre-positioning support plate 831; the pre-positioning motor 832 drives the pre-positioning belt 833 to move through a transmission wheel; the first connecting clamp 834 and the second connecting clamp 836 are respectively connected to the two sides of the pre-positioning belt 833; the above-mentioned first positioning guide plate 835 and the second positioning guide plate 837 are respectively vertically arranged on both sides of the conveyor belt 82, and are respectively connected to the first connecting clamp 834 and the second connecting clamp 836, and along the moving direction of the conveyor belt 82, the space width between the first positioning guide plate 835 and the second positioning guide plate 837 is gradually reduced. When the polarizer moves linearly with the conveyor belt 82, it is limited and corrected by the first positioning guide plate 835 and the second positioning guide plate 837, and the spacing width between the first positioning guide plate 835 and the second positioning guide plate 837 is adjusted by the pre-positioning motor 832.

[0066] Furthermore, the present invention designs an automatic polarizer scrubbing machine that integrates the processes of simultaneously loading, removing, front scrubbing, back scrubbing, and unloading correction of multiple polarizers, and has the functions of material extraction, air blowing to separate the sheets, shaking and tensioning to remove multiple sheets, scrubbing to prevent deviation, automatic tensioning of the dust-free cloth, and uniform scrubbing spray, which effectively improves the scrubbing efficiency and quality. The present invention adopts a multi-station design, specifically a 6-station structure, which can realize the loading, transfer, front scrubbing, and back scrubbing functions of 6 polarizers at the same time, effectively improving the scrubbing capacity. In actual application, the number of stations can be increased or decreased according to the efficiency requirements of the production line. Specifically: 1. The present invention is innovatively designed with a material box mechanism for guiding the stacked polarizers upward to take out the materials. The material box mechanism includes 6 sets, which are arranged in parallel and spaced apart. A single set of the material box mechanism includes a box body component and a material-pickup component. The box body component is composed of vertically connected support plates to form a rectangular box-shaped space with an open top. The bottom of the rectangular box-shaped space is a support, and the side is a baffle. The support and the baffle are both provided with air-avoiding grooves. The polarizers to be scrubbed are stacked up and down on the support, supported by the support, and limited from four sides by the box-shaped space. In addition, a tubular air nozzle is vertically provided on the upper open surface of the box body component, and at least two air holes are evenly spaced apart on the side wall of the air nozzle facing the box-shaped space; a waste box is horizontally provided on the outside of the air nozzle. The material-prying parts of the present invention are arranged at intervals on the side of the box body part, and a rotating component is arranged on the material-prying slide of the material-prying part, and the rotating component includes a rotating pillar, a rotating cylinder, a rotating bracket and a rotating shaft. The rotating pillar is vertically arranged on the material-prying slide, and the upper part of the rotating cylinder is rotatably connected to the rotating pillar, and the rotating bracket is vertically connected to the lower part of the material-prying slide, and a rotating shaft is rotatably arranged in the installation space at the bottom of the rotating bracket; a rotating seat is connected to the rotating shaft, one side of the rotating seat is connected to the output end of the rotating cylinder that is inclined downward, and a paddle is connected to the other side of the rotating seat, and the paddle plate is also provided with an air-avoiding groove body, and the air-avoiding groove body and the air-avoiding grooves provided on the support and the baffle bar of the box body part are inserted and staggered; the power output by the rotating cylinder drives the rotating seat and the paddle plate to rotate; the paddle plate can move upward from below through the gap between the air-avoiding groove of the support and the baffle bar. In the initial state, the paddle is set vertically downward. When the polarizer needs to be pushed outward, the paddle is rotated 90° from the bottom to the horizontal direction, and moves upward in a straight line with the material-paddle slide, passes through the support to lift the stacked polarizers upward, and continues to move upward to push the polarizers upward to the open surface of the material box space so as to take out the polarizers. At the same time, when taking out the polarizers, the air nozzle located on the open surface ejects high-pressure gas toward the material box, and the high-pressure gas acts on the polarizer that has been sucked and lifted, so as to separate the two adjacent polarizers from each other through air pressure, thereby reducing the situation where polarizers that are stuck to each other after being stacked are taken out at the same time, resulting in taking out multiple pieces of material.2. The present invention is innovatively designed with a material taking mechanism for taking out the polarizer from the material box mechanism and transferring it to the front scrubbing platform. The material taking mechanism is arranged across the frame and has the functions of linear movement and lifting movement. In particular, the material taking mechanism of the present invention is provided with 6 groups of material shaking cylinders and abutment blocks. A single group of material shaking cylinders includes two material shaking cylinders, which are arranged at intervals and have a material taking nozzle connected to the bottom. After the material taking nozzle takes out the polarizer from the material box mechanism, the two material shaking cylinders drive the material taking nozzle to shake up and down respectively. Under the vibration of the shaking force, the polarizer adhered to the bottom of the adsorbed polarizer is shaken and dropped, so as to reduce the situation of taking out multiple polarizers. In addition, the present invention also provides a stopper on the inner side of each of the two shaking cylinders of a single group. The stopper is connected to the side wall of the shaking cylinder through a connecting plate and extends vertically downward. When the two material taking nozzles suck the polarizer from both sides, the two outer sides of the polarizer flip up. At this time, the downward pressure exerted by the two stoppers on the polarizer has a tendency to deform the polarizer. The polarizer adhered to its lower part is ejected by the self-tension of the adsorbed polarizer, thereby reducing the situation of taking out multiple polarizers. 3. The present invention is ingeniously designed with a front scrubbing mechanism and a back scrubbing mechanism. The front scrubbing mechanism and the back scrubbing mechanism have similar structures and functions, but are arranged in opposite directions. The scrubbing part of the front scrubbing mechanism is arranged downward to scrub the upper part of the polarizer, and the scrubbing part of the back scrubbing mechanism is arranged upward to scrub the lower part of the polarizer. The front scrubbing mechanism and the back scrubbing mechanism of the present invention use a strip-shaped dust-free cloth as the scrubbing execution part. The strip-shaped dust-free cloth is stretched and extended in the horizontal direction. At the same time, 6 scrubbing stations are arranged at intervals on the horizontal dust-free cloth. A set of cloth pressing assembly and a scrubbing head are arranged at each scrubbing station. The scrubbing head is used to push the dust-free cloth and approach the polarizer to be scrubbed. The cloth pressing assembly is used to tension and pull the dust-free cloth away from the polarizer. After the scrubbing head presses the dust-free cloth on the polarizer, the scrubbing head sprays scrubbing liquid onto the dust-free cloth to soak the dust-free cloth. The polarizer slides in a straight line under the drive of the front scrubbing platform or the back scrubbing platform, and the dust-free cloth soaked with the scrubbing liquid scrubs the surface of the polarizer clean. After the scrubbing of the 6 polarizers is completed, the dust-free cloth is wound by the cloth collection roller and moves a scrubbing distance as a whole to replace a new scrubbing part for the next scrubbing. Specifically, the dust-free cloth of the present invention is supported and fixed by support rollers evenly spaced on the side walls of the scrubbing support plate. To prevent the dust-free cloth from deviating during the transmission process, a circular baffle plate with a diameter larger than the support roller is vertically provided on the outer end of the support roller. The baffle plate and the scrubbing support plate form a limiting effect on the dust-free cloth, preventing the dust-free cloth from deviating during the winding and moving process, thereby ensuring the scrubbing quality.In addition, the present invention arranges the cloth pressing assembly and the scrubbing head at two adjacent spacings formed between the supporting rollers, and the output directions are the same. When the scrubbing head is in a natural state, the pressure of the cloth pressing assembly on the dust-free cloth will cause the dust-free cloth to leave the polarizer at the scrubbing head. When scrubbing is required, the power output by the scrubbing head overcomes the force of the cloth pressing assembly to make the dust-free cloth close to the polarizer. After scrubbing is completed, when the power of the scrubbing head disappears, the dust-free cloth at the scrubbing head is separated from the polarizer under the action of the cloth pressing assembly, thereby avoiding the dust-free cloth from contacting the polarizer when replaced, thereby improving the scrubbing quality. The cloth pressing assembly of the present invention comprises a cloth pressing seat, a cloth pressing slide, a cloth pressing roller and a cloth pressing spring. The cloth pressing seat is arranged on a scrubbing support plate, and the cloth pressing slide is slidably connected to the cloth pressing seat along a vertical direction; the cloth pressing roller is vertically connected to the cloth pressing slide and extends to the side of the dust-free cloth; the cloth pressing spring is vertically arranged, one end of the cloth pressing spring is connected to the cloth pressing slide, and the other end is connected to the scrubbing support plate, and the elastic force of the cloth pressing spring causes the cloth pressing roller to press the dust-free cloth. The scrubbing head of the present invention uses a scrubbing seat with a cavity structure inside as an actuator. The bottom surface of the scrubbing seat is a horizontal plane structure, which is used to resist the dust-free cloth and scrub the surface of the polarizer, that is, the scrubbing plane. The width of the scrubbing plane is 20 mm. At the same time, a strip-shaped liquid tank is provided in the middle of the bottom surface of the scrubbing seat, and a scrubbing liquid tube is arranged inside the scrubbing seat. A plurality of spray holes are evenly spaced on the side wall of the scrubbing liquid tube corresponding to the liquid tank. After the external scrubbing liquid is introduced into the scrubbing liquid tube, it is sprayed out through the spray hole, passes through the liquid tank and contacts the dust-free cloth, and soaks the dust-free cloth in contact with the scrubbing plane, so that the dust-free cloth can scrub the polarizer. The inner diameter of the scrubbing liquid tube is The diameter of the spray hole is 0.8mm, and the inner diameter of the spray hole is 0.2mm, so as to control the flow rate of the sprayed cleaning liquid; in addition, since the thickness of the standard dust-free cloth on the market is 0.5mm at most, in order to prevent the spray flow rate from being too large, which may easily cause excessive residual cleaning liquid on the surface of the polarizer during scrubbing, the present invention also has scrubbing pressure plates correspondingly arranged on both sides of the scrubbing seat, and the scrubbing pressure plates can be used to fix a separate dust-free cloth piece, and the dust-free cloth piece covers the surface of the liquid tank to form resistance when the scrubbing liquid is led out. The thickness of the dust-free cloth piece can be selectively stacked according to the actual amount of scrubbing liquid required, and the dust-free cloth piece can be detachably installed through the scrubbing pressure plate, which is convenient for subsequent replacement and use. 4. The present invention is also designed with a material unloading transmission mechanism with a correction function. The material unloading transmission mechanism uses a conveyor belt as a material transmission carrier. The polarizer after scrubbing is transmitted to the next workstation through the linear motion of the conveyor belt. In order to ensure the position consistency and accuracy of the exported materials, the end of the material unloading transmission mechanism of the present invention is provided with a pre-positioning component, and a pre-positioning support plate mounted above the conveyor belt is used as a support carrier, and a pre-positioning belt is provided on the upper part of the pre-positioning support plate. At the same time, the upper part of the pre-positioning support plate can also be slidably connected with a first connecting support block and a second connecting support block, and the first connecting support block and the second connecting support block are respectively connected to the two sides of the pre-positioning belt. When the pre-positioning belt moves, the first connecting support block and the second connecting support block move in opposite directions respectively.At the same time, the first positioning guide plate and the second positioning guide plate are vertically connected to the lower part of the first connection support block and the lower part of the second connection support block respectively. The first positioning guide plate and the second positioning guide plate extend vertically to the conveyor belt, and a transmission space is formed between the two. The opening of the transmission space changes from large to small along the moving direction of the conveyor belt. When the polarizer on the conveyor belt moves forward, it is guided and limited by the limiting space formed by the first positioning guide plate and the second positioning guide plate, and the position is positioned while being transmitted. At the same time, the width of the limiting space between the first positioning guide plate and the second positioning guide plate can be adjusted in real time by moving the pre-positioning belt to adapt to the transmission of polarizers of different sizes.

[0067] The embodiments of the present invention are only to introduce its specific implementation methods and are not intended to limit its protection scope. The technicians in this industry can make some modifications inspired by this embodiment, so any equivalent changes or modifications made according to the scope of the patent of the present invention are within the scope of the patent claims of the present invention.

Claims

1. An automatic polarizer cleaning machine, characterized in that: The invention comprises a material box mechanism (2), a material taking mechanism (3), a front scrubbing platform (4), a front scrubbing mechanism (5), a back scrubbing suction table (6), a back scrubbing mechanism (7) and a material unloading transmission mechanism (8), wherein the material box mechanism (2) is arranged on one side of the frame (1), the front scrubbing platform (4) is arranged on one side of the material box mechanism (2), the material taking mechanism (3) is arranged across the material box mechanism (2) and the front scrubbing platform (4), and takes out a single polarizing film stacked in the material box mechanism (2) and places it on the front scrubbing platform (4); the front scrubbing mechanism (5) is arranged across the top of the front scrubbing platform (4), and is arranged in the same manner from top to bottom. The front side of the polarizer on the front side scrubbing platform (4) is scrubbed; the back side scrubbing mechanism (7) is arranged on one side of the front side scrubbing platform (4); the back side scrubbing suction platform (6) is arranged above the back side scrubbing mechanism (7); the back side scrubbing suction platform (6) absorbs the polarizer after the front side is scrubbed from the front side scrubbing platform (4); the back side scrubbing mechanism (7) scrubs the back side of the polarizer from bottom to top; the unloading transmission mechanism (8) is arranged on one side of the back side scrubbing mechanism (7); the back side scrubbing suction platform (6) places the polarizer after the back side is scrubbed on the unloading transmission mechanism (8); the polarizer is linearly transmitted and initially positioned through the unloading transmission mechanism (8); The material box mechanism (2) comprises a material shifting component (21) and a box body component (22), wherein the box body component (22) supports the stacked polarizers in mid-air, and the material shifting component (21) is inserted below the box body component (22), lifts the polarizers, and shifts the polarizers upward, and separates two adjacent polarizers by blowing air from the side. The front scrubbing mechanism (5) and the back scrubbing mechanism (7) comprise at least two sets of scrubbing heads which are arranged at intervals. The output ends of the scrubbing heads press the strip-shaped dust-free cloth against the polarizer and spray scrubbing liquid to wet the dust-free cloth. The polarizer and the dust-free cloth move relative to each other, and the dust-free cloth cleans the polarizer. The front scrubbing platform (4) comprises a support guide frame (41), a platform linear module (42), a platform slide (43), a platform linear motor (44), a platform screw (45), a platform screw seat (46), a platform support (47) and a platform suction seat (48), wherein the support guide frame (41) comprises two, and the two support guide frames (41) are arranged in parallel and spaced apart below the material taking mechanism (3); the platform linear module (42) is arranged between the two support guide frames (41); the platform slide (43) is slidably connected to the support guide frame (41), and is connected to the output end of the platform linear module (42), and is driven by the platform linear module (42) to move linearly; the platform linear motor (44) is arranged on the platform slide (43); The platform screw (45) is rotatably connected to the platform slide (43) in a direction perpendicular to the platform linear module (42), and is connected to the output end of the platform linear motor (44); the platform screw seat (46) is sleeved on the platform screw (45); the platform support (47) is slidably connected to the platform slide (43) in the direction of the platform screw (45), and is connected to the platform screw seat (46); when the platform linear motor (44) drives the platform screw (45) to rotate, the platform screw seat (46) drives the platform support (47) to move linearly; the platform suction seat (48) includes at least two platform suction seats (48), which are evenly spaced and arranged on the platform support (47), and the polarizer taken out by the material taking mechanism (3) is placed on the platform suction seat (48); The front scrubbing mechanism (5) and the back scrubbing mechanism (7) comprise a scrubbing support plate (51), a cloth roller (52), a cloth collecting roller (53), a dust-free cloth (54), a supporting roller (56), a cloth pressing assembly (58) and a scrubbing head (59), wherein the scrubbing support plate (51) is vertically arranged; the cloth roller (52) and the cloth collecting roller (53) are rotatably connected to the two sides of the scrubbing support plate (51); a dust-free cloth (54) is wound on the cloth roller (52); the outer end of the dust-free cloth (54) extends horizontally along the direction of the scrubbing support plate (51) and is connected to the cloth collecting roller (53); the supporting roller (56) comprises at least two supporting rollers (56), the supporting rollers (56) are evenly spaced and connected to the side wall of the scrubbing support plate (51); a supporting gap is formed between two adjacent supporting rollers (56); the dust-free cloth (54) is supported by the supporting rollers (56) and is spaced apart from each other. A protruding horizontal scrubbing portion (55) is formed on the dust-free cloth (54) at a support interval; a baffle (57) having a diameter greater than that of the support roller (56) is provided at the end of the support roller (56) so as to limit the position of the dust-free cloth (54) placed on the support roller (56); the scrubbing head (59) comprises at least two sets, the scrubbing head (59) is arranged corresponding to the scrubbing portion (55), and the output end faces the scrubbing portion (55), and the scrubbing head (59) pushes the scrubbing portion (55) close to the polarizer for scrubbing; the cloth pressing assembly (58) comprises at least two sets, the cloth pressing assembly (58) is arranged within the support interval between two adjacent scrubbing portions (55), and the output direction is the same as that of the scrubbing head (59) so as to complete scrubbing, and after the scrubbing head (59) releases the dust-free cloth (54), the cloth pressing assembly (58) presses and tightens the dust-free cloth (54); The reverse side scrubbing suction table (6) comprises a suction table linear module (61), a suction table slide (62), a suction table linear motor (63), a suction table slide seat (64), a suction table lifting motor (65), a suction table support (66), a suction table lifting seat (67) and a suction table suction seat (68), wherein the suction table linear module (61) comprises two, and the two suction table linear modules (61) are arranged in parallel and spaced apart; the suction table slide (62) is straddled on the two suction table linear modules (61) and connected to the output end of the suction table linear module (61); the suction table slide seat (64) is slidably arranged on the suction table slide seat (62), and the suction table linear motor (63) is arranged on one side of the suction table slide seat (64) and is connected to the suction table slide seat (64) through a screw rod so as to drive the suction table slide seat (64) 64) linear motion; the above-mentioned suction table support (66) is slidably connected to the lower part of the suction table slide (62), and is connected to the suction table slide (64) through a connecting plate; the above-mentioned suction table lifting motor (65) is arranged on the suction table slide (64), and the output end passes through the suction table slide (64) and extends downward; the above-mentioned suction table lifting seat (67) is arranged in the suction table support (66), and is connected to the output end of the suction table lifting motor (65) through a screw rod, and the suction table lifting motor (65) drives the suction table lifting seat (67) to move up and down; the above-mentioned suction table suction seat (68) includes at least two pieces, and the suction table suction seat (68) is evenly spaced and arranged at the bottom of the suction table lifting seat (67), and the suction table suction seat (68) absorbs the polarizer after front scrubbing from the front scrubbing platform (4) through vacuum negative pressure.

2. The automatic polarizer cleaning machine according to claim 1, characterized in that: The material box mechanism (2) comprises at least two sets of material box components arranged in parallel, each material box component comprises a material shifting component (21) and a box body component (22); the box body component (22) comprises a support plate (221), a support seat (222), an air nozzle (223) and a waste box (224), wherein the support plate (221) comprises at least two support plates (221), the support plates (221) are connected to each other and arranged vertically to form a box-shaped space, the two sides of the box-shaped space are open surfaces, and at least two blocking bars are arranged at intervals; the support seat (222) is horizontally arranged at the lower part of the box-shaped space, and the support seat (222) is arranged horizontally at the lower part of the box-shaped space. ) is provided with at least two air-avoiding grooves at intervals, and multiple polarizers to be scrubbed are stacked up and down on the support (222); the air nozzle (223) is vertically arranged on the side wall of the support plate (221) and close to the upper part of the box-shaped space, the air nozzle (223) is a tubular structure, and at least two air holes are opened on the side wall of the air nozzle (223) close to the box-shaped space. The stacked polarizers are separated by blowing gas through the air holes, so as to take out a single polarizer; the waste box (224) is horizontally arranged on the outer side of the support plate (221), and the multiple polarizers taken out of the box-shaped space are placed in the waste box (224) after being detected.

3. The automatic polarizer cleaning machine according to claim 2, characterized in that: The material-dispensing component (21) comprises a material-dispensing linear module (211), a material-dispensing slide (212), a rotating component, a rotating seat (217) and a dispensing plate (218), wherein the material-dispensing linear module (211) is vertically arranged on the side of the box body component (22); the material-dispensing slide (212) is slidably connected to the material-dispensing linear module (211) and is connected to the output end of the material-dispensing linear module (211); the rotating component is arranged on the material-dispensing slide (212); the rotating seat (217) is rotatably connected to the material-dispensing slide (212) and is connected to the rotating component, and the rotating component drives the rotating seat (217) to rotate; ... The plate (218) is connected to the rotating seat (217) and extends toward the box body component (22). At least two air-avoiding grooves are formed on the paddle plate (218). The air-avoiding grooves on the paddle plate (218) and the air-avoiding grooves on the support (222) are arranged alternately. When the material-paddle slide (212) moves vertically, the paddle plate (218) rotates to a vertical direction. After the paddle plate (218) moves below the support (222), the paddle plate (218) rotates to a horizontal direction and moves upward through the air-avoiding grooves of the support (222), supporting the polarizer placed on the support (222), and moving upward along the gap between the side blocking bars of the box-shaped space to push the polarizer upward. The rotating component comprises a rotating support (213), a rotating cylinder (214), a rotating bracket (215) and a rotating shaft (216), wherein the rotating support (213) is vertically connected to the upper part of the material-shifting slide (212); the upper end of the rotating cylinder (214) is rotatably connected to the rotating support (213), and the output end of the rotating cylinder (214) is tilted downward; the rotating bracket (215) is vertically connected to the lower part of the material-shifting slide (212) The lower part of the rotating bracket (215) is provided with a mounting groove; the rotating shaft (216) is rotatably arranged in the mounting groove at the lower part of the rotating bracket (215); the rotating seat (217) is connected to the rotating shaft (216); the side of the rotating seat (217) is provided with an extension portion extending to the bottom of the rotating cylinder (214); the extension portion is rotatably provided with a connecting sleeve; the output end of the rotating cylinder (214) is connected to the connecting sleeve so as to drive the rotating seat (217) to rotate.

4. The automatic polarizer cleaning machine according to claim 3, characterized in that: The material picking mechanism (3) comprises a material picking linear module (31), a material picking support plate (32), a material picking lifting motor (33), a material picking lifting slide (34), a material shaking cylinder (35), a material picking suction nozzle (36) and a stop block (37), wherein the material picking linear module (31) is arranged on the side of the material box mechanism (2), the material picking support plate (32) is connected to the material picking linear module (31), and is driven by the material picking linear module (31) to move linearly; the material picking lifting motor (33) is arranged on the material picking support plate (32), and the output end is arranged downward; the material picking lifting slide (34) is slidably connected to the material picking support plate (32) in the vertical direction, and is connected to the output end of the material picking lifting motor (33), and the material picking lifting motor (33) drives the material picking lifting motor (33) through a screw rod. The descending slide (34) moves upward and downward; the material shaking cylinder (35) comprises at least two groups, and the material shaking cylinders (35) are connected to the lower part of the material picking lifting slide (34) in pairs; the lower part of the material shaking cylinder (35) is connected to a material picking suction nozzle (36), and the material picking suction nozzle (36) at the lower part of the two material shaking cylinders (35) in the same group sucks the polarizer from the material box mechanism (2); the above-mentioned stop block (37) is respectively connected to the side walls of the two material shaking cylinders (35) and extends downward to press against the top surface of the polarizer; the material shaking cylinder (35) drives the material picking suction nozzle (36) to shake so that the polarizer adhered to the lower part is shaken off, and while the material picking suction nozzle (36) absorbs the polarizer upward from both outer sides of the polarizer, the stop block (37) presses against the polarizer downward from the inner side, and the polarizer adhered to the lower part falls off through the tension of the polarizer.

5. The automatic polarizer cleaning machine according to claim 4, characterized in that: The scrubbing head (59) comprises a scrubbing support (591), a scrubbing cylinder (592), a scrubbing slide (593), a scrubbing seat (594), a scrubbing pressure plate (596) and a scrubbing liquid tube (597), wherein the scrubbing support (591) is connected to the side wall of the scrubbing support plate (51); the scrubbing cylinder (592) is vertically arranged on the scrubbing support (591), and the output end is arranged toward the dust-free cloth (54); the scrubbing slide (593) is slidably connected to the scrubbing support (591) in the vertical direction, and is connected to the output end of the scrubbing cylinder (592), and the scrubbing cylinder (592) drives the scrubbing slide (593) to move up and down; the scrubbing seat (594) is connected to the scrubbing slide (593), and an installation cavity is arranged in the scrubbing seat (594), and the scrubbing The side of the seat (594) close to the dust-free cloth is a horizontal plane and is provided with a strip-shaped liquid groove (595), the liquid groove (595) passing through the installation cavity; the above-mentioned scrubbing liquid pipe (597) is arranged in the installation cavity, and at least two liquid spray holes are provided on the scrubbing liquid pipe (597), and the scrubbing liquid in the scrubbing liquid pipe (597) is sprayed out through the liquid spray holes and passes through the liquid groove (595) to contact the dust-free cloth (54); the above-mentioned scrubbing pressure plate (596) includes two pieces, and the two scrubbing pressure plates (596) are respectively connected to the two side walls of the scrubbing seat (594), and a detachable dust-free cloth is clamped and fixed between the two scrubbing pressure plates (596), and the detachable dust-free cloth passes through the liquid groove (595) to cover the horizontal surface of the scrubbing seat (594), so as to reduce the speed and flow rate of the scrubbing liquid guided out of the liquid groove (595) contacting the dust-free cloth (54).

6. The automatic polarizer cleaning machine according to claim 5, characterized in that: The cloth pressing assembly (58) comprises a cloth pressing seat (581), a cloth pressing slide (582), a cloth pressing roller (583) and a cloth pressing spring (584), wherein the cloth pressing seat (581) is vertically arranged on the scrubbing support plate (51); the cloth pressing slide (582) is slidably connected to the cloth pressing seat (581) along the vertical direction; the cloth pressing roller (583) is vertically connected to the cloth pressing slide (582) and extends to the side of the dust-free cloth (54); the cloth pressing spring (584) is vertically arranged, one end of the cloth pressing spring (584) is connected to the cloth pressing slide (582), and the other end is connected to the scrubbing support plate (51), and the elastic force of the cloth pressing spring (584) causes the cloth pressing roller (583) to press the dust-free cloth (54).

7. The automatic polarizer cleaning machine according to claim 6, characterized in that: The unloading transmission mechanism (8) comprises a transmission bracket (81), a transmission belt (82) and a pre-positioning component (83), wherein the transmission bracket (81) is arranged along a straight line direction, the transmission belt (82) is arranged in the transmission bracket (81) and is driven by a power mechanism to move in a straight line, and the polarizer on the reverse side scrubbing suction table (6) after being scrubbed on the reverse side is placed on the transmission belt (82) and output to the outside through the transmission belt (82); the pre-positioning component (83) is arranged at the outlet end of the transmission belt (82), and the polarizer on the transmission belt (82) is preliminarily corrected when passing through the pre-positioning component (83); The pre-positioning assembly (83) comprises a pre-positioning support plate (831), a pre-positioning motor (832), a pre-positioning belt (833), a first connecting clamp (834), a first positioning guide plate (835), a second connecting clamp (836) and a second positioning guide plate (837), wherein the pre-positioning support plate (831) is arranged across the top of the transmission belt (82); the pre-positioning motor (832) is arranged on the pre-positioning support plate (831) with the output end facing upward; the pre-positioning belt (833) is arranged on the pre-positioning support plate (831) and is tensioned by a rotating wheel rotatably arranged on the pre-positioning support plate (831); the pre-positioning motor (832) drives the pre-positioning belt (833) to move via a transmission wheel; the first connecting clamp (834) is arranged on the top of the transmission belt (82); the pre-positioning motor (832) is arranged on the pre-positioning support plate (831) and the output end is arranged upward; the pre-positioning belt (833) is arranged on the pre-positioning support plate (831) and is tensioned by a rotating wheel rotatably arranged on the pre-positioning support plate (831); the pre-positioning motor (832) drives the pre-positioning belt (833) to move via a transmission wheel; the first connecting clamp (834) and the second connecting clamp (836) are respectively connected to the two sides of the pre-positioning belt (833); the first positioning guide plate (835) and the second positioning guide plate (837) are respectively vertically arranged on the two sides of the conveyor belt (82), and are respectively connected to the first connecting clamp (834) and the second connecting clamp (836), and along the moving direction of the conveyor belt (82), the width of the space between the first positioning guide plate (835) and the second positioning guide plate (837) is gradually reduced, and when the polarizer moves linearly with the conveyor belt (82), it is limited and corrected by the first positioning guide plate (835) and the second positioning guide plate (837), and the width of the spacing between the first positioning guide plate (835) and the second positioning guide plate (837) is adjusted by the pre-positioning motor (832).

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