CN110653189A

CN110653189A - Automatic scrubbing machine for polaroid

Info

Publication number: CN110653189A
Application number: CN201911055682.5A
Authority: CN
Inventors: 高军鹏
Original assignee: Shenzhen Etmade Automatic Equipment Co Ltd
Current assignee: Shenzhen Etmade Automatic Equipment Co Ltd
Priority date: 2019-10-31
Filing date: 2019-10-31
Publication date: 2020-01-07

Abstract

The invention discloses an automatic scrubbing machine for a polaroid, which comprises 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 discharging transmission mechanism, wherein the material box mechanism is arranged on one side of a rack; the front scrubbing mechanism is arranged above the front scrubbing platform in a spanning manner; the back scrubbing mechanism is arranged on one side of the front scrubbing platform; the blanking transmission mechanism is arranged on one side of the reverse scrubbing mechanism. The invention integrates the processes of simultaneously feeding, taking materials, scrubbing the front surface, scrubbing the back surface, discharging, correcting and the like of a plurality of polaroids, has the functions of material poking and guiding, blowing and distributing the sheets, shaking and tensioning to remove the plurality of polaroids, scrubbing and preventing deviation, automatically tensioning dust-free cloth, scrubbing and spraying liquid uniformly and the like, and effectively improves the scrubbing efficiency and the scrubbing quality.

Description

Automatic scrubbing machine for polaroid

Technical Field

The invention relates to the field of automatic manufacturing, in particular to an automatic scrubbing machine for a polaroid.

Background

The flat panel display device is a man-machine interaction carrier for realizing character and image display, and mainly comprises a display module, a backlight module and a touch module, wherein the display module comprises a display panel, a polaroid, a driving chip (IC), a circuit board (PCB, FPC) and the like. The production of the flat panel display device is divided into a front section array, a box forming process and a rear section module assembling process. The front-stage process is used for producing the display panel, and the rear-stage process is used for assembling the display panel, the polaroid, the backlight module, the touch module and other components into the flat panel display device. The former-stage production equipment is mainly provided by Japan, Korea and American enterprises at present, and is basically not produced by oneself in China; in the production equipment of the later process, a few domestic enterprises have realized breakthrough, and the replacement of imported equipment is gradually realized at present. The display panel is a main component for realizing a display function, and in order to assemble a display device, polarizers are required to be attached to two sides of the panel (an LCD panel needs to be attached with one polarizer at each of the upper and lower sides, and an OLED panel needs to be attached with one polarizer at the upper side) to realize directional propagation of light.

Before the polaroid is attached, the attaching surface of the polaroid needs to be cleaned, and adhered objects such as impurities, dust and the like on the attaching surface are removed, so that the attaching quality of the subsequent polaroid is ensured, and the attaching defective products are reduced; therefore, it is desirable to design an apparatus for cleaning a polarizer before attaching the polarizer.

Disclosure of Invention

The technical problem to be solved by the invention is to provide an automatic polarizer scrubbing machine which integrates the processes of simultaneously feeding, taking materials, scrubbing the front surface, scrubbing the back surface, correcting the blanking and the like of a plurality of polarizers, has the functions of material poking and guiding, blowing and distributing the sheets, shaking and tensioning to remove the plurality of polarizers, scrubbing and deviation preventing, automatically tensioning dust-free cloth, scrubbing and spraying liquid uniformly and the like, and effectively improves the scrubbing efficiency and the scrubbing quality.

The technical scheme adopted by the invention is as follows: an automatic scrubbing machine for polaroids comprises 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 discharging transmission mechanism, wherein the material box mechanism is arranged on one side of a rack; the front scrubbing mechanism is arranged above the front scrubbing platform in a spanning mode and is used for scrubbing the front surface of the polaroid on the scrubbing platform from top to bottom simultaneously; the back scrubbing mechanism is arranged on one side of the front scrubbing platform, the back scrubbing suction table is arranged above the back scrubbing mechanism in a spanning mode, the back scrubbing suction table sucks the polaroid subjected to the front scrubbing from the front scrubbing platform, and the back scrubbing mechanism scrubs the back surface of the polaroid from bottom to top; the blanking transmission mechanism is arranged on one side of the reverse side scrubbing mechanism, the reverse side scrubbing suction table places the polaroid subjected to reverse side scrubbing on the blanking transmission mechanism, and the polaroid is linearly transmitted and initially positioned by the blanking transmission mechanism;

the material box mechanism comprises a material shifting part and a box body part, wherein the box body part is used for supporting the stacked polaroids in a hanging mode, the material shifting part is inserted below the box body part and lifts the polaroids, the polaroids are shifted upwards, and two adjacent polaroids are separated through side air blowing;

the front scrubbing mechanism and the back scrubbing mechanism comprise at least two sets of scrubbing heads arranged at intervals, the output ends of the scrubbing heads push the strip-shaped dust-free cloth against the polaroid, the scrubbing liquid is sprayed out to soak the dust-free cloth, the polaroid and the dust-free cloth move relatively, and the dust-free cloth scrubs the polaroid cleanly.

Preferably, the magazine mechanism comprises at least two sets of magazine components arranged in parallel, and each magazine component comprises a material poking part and a box body part; the box body part comprises a support plate, a support, an air tap and a waste material box, wherein the support plate comprises at least two support plates which are mutually connected and vertically arranged to form a box-shaped space, two sides of the box-shaped space are open surfaces, and at least two barrier strips are arranged at intervals; the support is horizontally arranged at the lower part of the box-shaped space, at least two clearance grooves are arranged on the support at intervals, and a plurality of polaroids to be scrubbed are vertically stacked on the support; the air faucet is vertically arranged on the side wall of the support plate and is close to the upper part of the box-shaped space, the air faucet is of a tubular structure, at least two air holes are formed in the side wall of the air faucet, which is close to one side of the box-shaped space, and air of the polaroids stacked up and down is separated through the air holes so that the single polaroids can be taken out; the waste material box is horizontally arranged on the outer side of the support plate, and a plurality of polaroids taken out from the box-shaped space are placed in the waste material box after being detected.

Preferably, the material shifting component comprises a material shifting linear module, a material shifting sliding seat, a rotating component, a rotating seat and a shifting plate, wherein the material shifting linear module is vertically arranged on the side part of the box body component; the material shifting sliding seat is connected to the material shifting linear module in a sliding manner and is connected with the output end of the material shifting linear module; the rotating component is arranged on the material poking sliding seat; the rotary seat is rotatably connected to the material poking sliding seat and connected with a rotary member, and the rotary member drives the rotary seat to rotate; the shifting plate is connected to the rotating seat and extends towards the direction of the box body part, at least two clearance groove bodies are arranged on the shifting plate, and the clearance groove bodies on the shifting plate and the clearance grooves on the support are arranged in a staggered mode; when the material shifting sliding seat moves vertically, the shifting plate rotates to the vertical direction, and after the shifting plate moves to the position below the support, the shifting plate rotates to the horizontal direction and moves upwards through the clearance groove of the support, so that the polaroid placed on the support is lifted and supported, and the polaroid moves upwards along the gap between the barrier strips at the side part of the box-shaped space, and is pushed out upwards;

the rotating component comprises a rotating pillar, a rotating cylinder, a rotating bracket and a rotating shaft, wherein the rotating pillar is vertically connected to the upper part of the material stirring sliding seat; the upper end of the rotary cylinder is rotatably connected to the rotary support, and the output end of the rotary cylinder is arranged downwards in an inclined manner; the rotating bracket is vertically connected to the lower part of the material shifting sliding seat, and the lower part of the rotating bracket is provided with an installation groove; the rotating shaft is rotatably arranged in the mounting groove at the lower part of the rotating bracket; the rotary seat is connected to the rotating shaft, an extending portion extending to the lower portion of the rotary cylinder is arranged on the side portion of the rotary seat, a connecting sleeve is rotatably arranged at the extending portion, and the output end of the rotary cylinder is connected with the connecting sleeve so as to drive the rotary seat to rotate.

Preferably, the material taking mechanism comprises a material taking linear module, a material taking support plate, a material taking lifting motor, a material taking lifting slide seat, a material shaking cylinder, a material taking suction nozzle and a support block, wherein the material taking linear module is arranged on the side part of the material box mechanism, and the material taking support plate is connected to the material taking linear module and is driven by the material taking linear module to move linearly; the material taking lifting motor is arranged on the material taking support plate, and the output end of the material taking lifting motor is arranged downwards; the material taking lifting slide seat is connected to the material taking support plate in a sliding manner along the vertical direction and is connected with the output end of the material taking lifting motor, and the material taking lifting motor drives the material taking lifting slide seat to move up and down through a lead screw; the material shaking cylinders comprise at least two groups, every two of the material shaking cylinders are connected to the lower part of the material taking lifting slide seat in a group, the lower parts of the material shaking cylinders are connected with material taking suction nozzles, and the material taking suction nozzles at the lower parts of the two material shaking cylinders in the same group suck polaroids from the material box mechanism; the resisting blocks are respectively connected to the side walls of the two material shaking cylinders and extend downwards to resist the top surface of the polaroid; the material shaking cylinder drives the material taking suction nozzle to shake so as to shake off the polaroid adhered to the lower part, and the material taking suction nozzle upwards adsorbs the polaroid from two outer sides of the polaroid, and meanwhile, the resisting block downwards resists the polaroid from the inner side, so that the polaroid adhered to the lower part falls off through the tension of the polaroid.

Preferably, the front scrubbing platform comprises two support guide frames, a platform linear module, a platform sliding seat, a platform linear motor, a platform screw rod seat, a platform support and a platform suction seat, wherein the two support guide frames are arranged below the material taking mechanism in parallel at intervals; the platform linear module is arranged between the two supporting guide frames; the platform sliding seat is connected to the support guide frame in a sliding manner, is connected with 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 sliding seat; the platform screw rod is rotatably connected to the platform sliding seat along the direction vertical to the platform linear module and is connected with the output end of the platform linear motor; the platform screw rod seat is sleeved on the platform screw rod; the platform support is connected to the platform sliding seat in a sliding manner along the direction of the platform screw rod and is connected with the platform screw rod seat; when the platform linear motor drives the platform screw rod to rotate, the platform screw rod seat drives the platform support to move linearly; the platform suction seats comprise at least two platform suction seats, the platform suction seats are uniformly arranged on the platform support at intervals, and the polaroid taken out by the material taking mechanism is placed on the platform suction seats.

Preferably, the front scrubbing mechanism and the back scrubbing mechanism comprise scrubbing support plates, cloth rollers, cloth collecting rollers, dust-free cloth, support rollers, cloth pressing assemblies and scrubbing heads, wherein the scrubbing support plates are vertically arranged; the cloth roller and the cloth collecting roller are rotatably connected to two sides of the scrubbing support plate, the dust-free cloth is wound on the cloth roller, and the outer end of the dust-free cloth horizontally extends along the scrubbing support plate and is connected to the cloth collecting roller; the support rollers comprise at least two support rollers, the support rollers are uniformly connected to the side walls of the scrubbing support plates at intervals, a support space is formed between every two adjacent support rollers, the dust-free cloth is supported by the support rollers, and a protruded horizontal scrubbing part is formed on the dust-free cloth which is separated by 1 support space; the end part of the supporting roll is provided with a baffle plate with the diameter larger than that of the supporting roll so as to limit the dust-free cloth placed on the supporting roll; the scrubbing heads comprise at least two sets, the scrubbing heads are arranged corresponding to the scrubbing part, the output end faces the scrubbing part, and the scrubbing part is pushed by the scrubbing heads to be close to the polaroid so as to be scrubbed; the cloth pressing assembly comprises at least two sets of cloth pressing assemblies, the cloth pressing assemblies are arranged in the supporting interval between two adjacent scrubbing parts, the output direction of the cloth pressing assemblies is the same as that of the scrubbing heads, so that scrubbing is completed, and after the scrubbing heads loosen the dust-free cloth, the cloth pressing assemblies tightly press and tension the dust-free cloth.

Preferably, the scrubbing head comprises a scrubbing support, a scrubbing cylinder, a scrubbing sliding seat, a scrubbing pressing 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 of the scrubbing cylinder is arranged towards the direction of the dust-free cloth; the scrubbing sliding seat is connected to the scrubbing support in a sliding mode in the vertical direction and is connected with the output end of the scrubbing cylinder, and the scrubbing cylinder drives the scrubbing sliding seat to move up and down; the scrubbing seat is connected to the scrubbing sliding seat, a mounting cavity is arranged in the scrubbing seat, the side surface of the scrubbing seat, which is close to the dust-free cloth, is a horizontal plane, a strip-shaped liquid groove is formed in the scrubbing seat, and the liquid groove penetrates through the mounting cavity; the scrubbing liquid pipe is arranged in the mounting cavity, at least two liquid spraying holes are formed in the scrubbing liquid pipe, and scrubbing liquid in the scrubbing liquid pipe is sprayed out through the liquid spraying holes and penetrates through the liquid groove to contact the dust-free cloth; the scrubbing pressing plates comprise two blocks, the two scrubbing pressing plates are respectively connected to two side walls of the scrubbing seat, the detachable dust-free cloth is clamped and fixed between the two scrubbing pressing plates, and the detachable dust-free cloth penetrates through the liquid tank to cover the horizontal plane of the scrubbing seat, so that the speed and the flow of scrubbing liquid guided out of the liquid tank and contacting the dust-free cloth are reduced.

Preferably, the cloth pressing assembly comprises a cloth pressing seat, a cloth pressing sliding seat, 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 sliding seat is connected to the cloth pressing seat in a sliding manner along the vertical direction; the cloth pressing roller is vertically connected to the cloth pressing sliding seat 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 with the cloth pressing sliding seat, the other end of the cloth pressing spring is connected with the scrubbing support plate, and the elasticity of the cloth pressing spring enables the cloth pressing roller to press the dust-free cloth.

Preferably, the back scrubbing suction table comprises two suction table linear modules, two suction table sliding frames, two suction table linear motors, a suction table sliding seat, a suction table lifting motor, a suction table support, a suction table lifting seat and two suction table suction seats, wherein the two suction table linear modules are arranged in parallel at intervals; the suction table sliding frame is spanned on the two suction table linear modules and is connected with the output end of the suction table linear module; the suction table sliding seat is slidably arranged on the suction table sliding frame, and the suction table linear motor is arranged on one side of the suction table sliding seat and is connected with the suction table sliding seat through a screw rod so as to drive the suction table sliding seat to move linearly; the suction table support is slidably connected to the lower part of the suction table sliding frame and is connected with the suction table sliding seat through a connecting plate; the suction table lifting motor is arranged on the suction table sliding seat, and the output end of the suction table lifting motor penetrates through the suction table sliding seat to extend downwards; the suction table lifting seat is arranged in the suction table support and is connected with 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 seats comprise at least two blocks, the suction table suction seats are uniformly arranged at the bottom of the suction table lifting seat at intervals, and the suction table suction seats suck the polaroids after the front scrubbing from the front scrubbing platform through vacuum negative pressure.

Preferably, the blanking transmission mechanism comprises a transmission support, a transmission belt and a pre-positioning assembly, wherein the transmission support is arranged along a linear direction, the transmission belt is arranged in the transmission support and is driven by the power mechanism to move linearly, the polarizer after the reverse-surface scrubbing on the reverse-surface scrubbing suction table is placed on the transmission belt and is output outwards through the transmission belt; the pre-positioning assembly is arranged at the outlet end part of the transmission belt, and the polaroid on the transmission belt is subjected to preliminary correction when passing through the pre-positioning assembly;

the pre-positioning assembly comprises a pre-positioning support plate, a pre-positioning motor, a pre-positioning belt, a first connecting clamping block, a first positioning guide plate, a second connecting clamping block and a second positioning guide plate, wherein the pre-positioning support plate is arranged above the conveying belt in a crossing mode; the pre-positioning motor is arranged on the pre-positioning support plate, and the output end of the pre-positioning motor is arranged upwards; the pre-positioning belt is arranged on the pre-positioning support plate and tensioned by a rotating wheel which is rotatably arranged on the pre-positioning support plate, and the pre-positioning motor drives the pre-positioning belt to move through a driving wheel; the first connecting clamping block and the second connecting clamping block are respectively connected to two sides of the pre-positioning belt; the first positioning guide plate and the second positioning guide plate are vertically arranged on two sides of the transmission belt respectively and are connected with the first connecting clamping block and the second connecting clamping block respectively, the space width between the first positioning guide plate and the second positioning guide plate is gradually reduced along the motion direction of the transmission belt, when the polaroid linearly moves along with the transmission belt, the polaroid is limited and corrected through the first positioning guide plate and the second positioning guide plate, and the space width between the first positioning guide plate and the second positioning guide plate is adjusted through the pre-positioning motor.

The invention has the beneficial effects that:

aiming at the defects and shortcomings in the prior art, the automatic polarizer scrubbing machine is independently developed and designed, integrates the processes of simultaneously feeding, taking materials, scrubbing the front side, scrubbing the back side, correcting the blanking and the like of a plurality of polarizers, has the functions of material poking and guiding, blowing and distributing the sheets, shaking and tensioning to remove the plurality of polarizers, scrubbing and deviation preventing, automatic tensioning of dust-free cloth, scrubbing and liquid spraying uniformity and the like, and effectively improves the scrubbing efficiency and the scrubbing quality. The invention adopts a multi-station design, particularly adopts a 6-station structure, can simultaneously realize the functions of feeding, transferring, front scrubbing and back scrubbing of 6 polaroids, effectively improves the scrubbing capacity, and can increase and decrease the number of stations according to the requirement of production line efficiency in the actual application process. Specifically, the method comprises the following steps:

1. the material box mechanism is designed originally for guiding the stacked polaroids upwards to take the polaroids, the material box mechanism comprises 6 sets of material box mechanisms, the 6 sets of material box mechanisms are arranged in parallel at intervals, the single material box mechanism comprises a box body part and a material shifting part, the box body part is a rectangular box-shaped space with an open top formed by mutually connected and vertically arranged support plates, the bottom of the rectangular box-shaped space is a support, the side part of the rectangular box-shaped space is a barrier strip, and the support and the barrier strip are provided with clearance grooves; the polaroid to be scrubbed is vertically stacked on the support, supported by the support and limited from four sides by the box-shaped space. In addition, the upper open surface of the box body part is vertically provided with an air faucet with a tubular structure, and the side wall of the air faucet facing one side of the box-shaped space is uniformly provided with at least two air holes at intervals; the outer side of the air tap is horizontally provided with a waste material box. The material shifting component is arranged at the side part of the box body component at intervals, a rotating member is arranged on a material shifting sliding seat of the material shifting component, the rotating member comprises a rotating support column, a rotating cylinder, a rotating bracket and a rotating shaft, the rotating support column is vertically arranged on the material shifting sliding seat, the upper part of the rotating cylinder is rotatably connected to the rotating support column, the rotating bracket is vertically connected to the lower part of the material shifting sliding seat, and the rotating shaft is rotatably arranged in an installation space at the bottom of the rotating bracket; the rotating shaft is connected with a rotating seat, one side of the rotating seat is connected with an output end of the rotating cylinder, which inclines downwards, the other side of the rotating seat is connected with a shifting plate, the shifting plate is also provided with a clearance groove body, and the clearance groove body is oppositely inserted and staggered with the clearance grooves arranged on the support and the barrier strip of the box body part; the power output by the rotary cylinder drives the rotary seat and the shifting plate to rotate; the shifting plate can pass through the clearance between the clearance groove of the support and the barrier strip from the lower part and move upwards. In an initial state, the shifting plate is vertically arranged downwards, when the polaroids need to be pushed outwards, the shifting plate rotates 90 degrees from the lower part to the horizontal direction, moves upwards and linearly along with the material shifting sliding seat, penetrates through the support to upwards lift the stacked polaroids, continues to move upwards, and pushes the polaroids upwards to the open surface of the material box space so as to take out the polaroids; meanwhile, when the polaroids are taken out, the air nozzles positioned at the open surfaces eject high-pressure gas towards the direction of the material box, the high-pressure gas acts on the sucked and lifted polaroids, the two adjacent polaroids are separated from each other through air pressure, and the situation that multiple pieces of materials are taken out due to the fact that the polaroids which are mutually bonded after being stacked are taken out at the same time is reduced.

2. The invention is originally designed with a material taking mechanism which is used for taking the polaroid out of the material box mechanism and transferring the polaroid to the front scrubbing platform, and the material taking mechanism is arranged in a crossing way and has the functions of linear movement and lifting movement; particularly, the material taking mechanism is provided with 6 groups of material shaking cylinders and a resisting block, the material shaking cylinders of the material shaking single group comprise two material shaking cylinders, the two material shaking cylinders are arranged at intervals, the bottom of each material shaking cylinder is connected with a material taking suction nozzle, after the material taking suction nozzle takes the polaroid out of the material box mechanism, the two material shaking cylinders respectively drive the material taking suction nozzle to shake up and down, and under the vibration of shaking power, the situation that the polaroid adhered to the lower side of the adsorbed polaroid shakes and falls off is achieved, so that the situation that a plurality of polaroids are taken out is reduced. In addition, the inner sides of the two material shaking cylinders in the single group are respectively provided with a resisting block, the resisting block is connected to the side wall of the material shaking cylinder through a connecting plate and vertically extends downwards, after the two material taking suction nozzles suck the polaroids from two sides, two outer sides of the polaroids are turned upwards, the downward resisting pressure of the two resisting blocks on the polaroids has the tendency of deforming the polaroids, and the action of bouncing off the polaroids adhered to the lower parts of the polaroids is achieved by utilizing the self-tension of the adsorbed polaroids, so that the situation of taking out a plurality of polaroids is reduced.

3. The invention is originally designed with a front scrubbing mechanism and a back scrubbing mechanism, the front scrubbing mechanism and the back scrubbing mechanism have similar structure and function but opposite arrangement direction, the scrubbing part of the front scrubbing mechanism is arranged downwards to scrub the upper part of the polaroid, and the scrubbing part of the back scrubbing mechanism is arranged upwards to scrub the lower part of the polaroid. The front scrubbing mechanism and the back scrubbing mechanism of the invention use strip-shaped dust-free cloth as scrubbing execution parts, the strip-shaped dust-free cloth stretches and extends along the horizontal direction, meanwhile, 6 scrubbing stations are arranged on the horizontal dust-free cloth at intervals, a set of cloth pressing component and a scrubbing head are respectively arranged at each scrubbing station, the scrubbing head is used for pushing out the dust-free cloth and is close to a polaroid to be scrubbed, and the cloth pressing component is used for tensioning and pulling the dust-free cloth away from the polaroid; after the dust-free cloth is pressed on the polaroid by the scrubbing head, the scrubbing head sprays scrubbing liquid to the dust-free cloth to soak the dust-free cloth, the polaroid slides linearly under the driving 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 polaroid clean; after 6 polaroids are scrubbed, the dust-free cloth is wound by the cloth collecting roller and integrally moves for a scrubbing distance, so that a new scrubbing part is replaced for scrubbing next time. Specifically, the dust-free cloth is supported and fixed by the supporting rollers which are uniformly arranged on the side wall of the scrubbing support plate at intervals, in order to ensure that the dust-free cloth deviates in the transmission process, the outer end part of the supporting roller is vertically provided with the circular baffle plate with the diameter larger than that of the supporting roller, and the baffle plate and the scrubbing support plate form a limiting effect on the dust-free cloth, so that the dust-free cloth is prevented from deviating in the rolling and moving process, and the scrubbing quality is ensured. In addition, the cloth pressing assembly and the scrubbing head are respectively arranged at two adjacent intervals formed between the supporting rollers, the output directions are the same, the pressure of the cloth pressing assembly on the dust-free cloth can enable the dust-free cloth to leave the polaroid at the scrubbing head under the natural state of the scrubbing head, when scrubbing is needed, the power output by the scrubbing head overcomes the force of the cloth pressing assembly to enable the dust-free cloth to be close to the polaroid, when the power of the scrubbing head disappears after scrubbing is completed, the dust-free cloth enables the dust-free cloth at the scrubbing head to leave the polaroid under the action of the cloth pressing assembly, the dust-free cloth is prevented from contacting the polaroid when being replaced, and the scrubbing quality is improved. The cloth pressing component comprises a cloth pressing seat, a cloth pressing sliding seat, a cloth pressing roller and a cloth pressing spring, wherein the cloth pressing is arranged on a scrubbing support plate, and the cloth pressing sliding seat is connected to the cloth pressing seat in a sliding manner along the vertical direction; the cloth pressing roller is vertically connected to the cloth pressing sliding seat 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 with the cloth pressing sliding seat, the other end of the cloth pressing spring is connected with the scrubbing support plate, and the elasticity of the cloth pressing spring enables the cloth pressing roller to press the dust-free cloth. The scrubbing head takes a scrubbing seat with a cavity structure arranged inside as an execution part, the bottom surface of the scrubbing seat is of a horizontal plane structure and is used for propping against dust-free cloth and scrubbing the surface of a polaroid, namely a scrubbing plane, and the width of the scrubbing plane is 20 mm; meanwhile, a strip-shaped liquid tank is arranged in the middle of the bottom surface of the scrubbing seat, a scrubbing liquid pipe is erected in the scrubbing seat, a plurality of liquid spraying holes are uniformly arranged on the side wall of the scrubbing liquid tank corresponding to the liquid tank at intervals, external scrubbing liquid is sprayed out through the liquid spraying holes after being guided into the scrubbing liquid pipe, penetrates through the liquid tank to contact dust-free cloth, and wets the dust-free cloth in contact with a scrubbing plane so as to facilitate scrubbing of the polaroid by the dust-free cloth, the inner diameter of the scrubbing liquid pipe is 0.8mm, and the inner diameter of the liquid spraying holes is 0.2mm so as to control the flow of the sprayed scrubbing liquid; in addition, because the thickness of standard dust-free cloth on the market is 0.5mm at the maximum, in order to prevent the excessive spray liquid flow and easily cause the excessive wiping solution residue on the surface of the polaroid during wiping, the invention is also provided with the wiping pressing plates correspondingly at two sides of the wiping seat, the wiping pressing plates can be used for fixing the independent dust-free cloth sheets, the dust-free cloth sheets cover the surface of the liquid tank to form the resistance when the wiping solution is led out, the overlapping thickness of the dust-free cloth sheets can be selectively carried out according to the requirement of the actual wiping liquid flow, and the dust-free cloth sheets can be detachably installed through the wiping pressing plates, thereby facilitating the subsequent replacement and use.

4. The invention also designs a blanking transmission mechanism with a correction function, wherein the blanking transmission mechanism takes a transmission belt as a material transmission carrier, transmits the cleaned polaroid to the next work station through the linear motion of the transmission belt, and in order to ensure the position consistency and accuracy of the guided material, a pre-positioning component is arranged at the end part of the blanking transmission mechanism, a pre-positioning support plate arranged above the transmission belt is taken as a support carrier, and a pre-positioning belt is arranged at the upper part of the pre-positioning support plate. Meanwhile, the upper part of the prepositioning support plate is also connected with a first connecting support block and a second connecting support block in a sliding manner, the first connecting support block and the second connecting support block are respectively connected to two sides of the prepositioning belt, and when the prepositioning belt moves, the first connecting support block and the second connecting support block respectively move along opposite directions. Simultaneously, connect the below of a piece and the second and connect a piece and vertically be connected with first location baffle and second location baffle respectively, first location baffle and second location baffle are vertical to be extended to on the transmission band, form the transmission space between the two, and this transmission space is by big diminishing along the moving direction opening of transmission band, the spacing space that forms through first location baffle and second location baffle when the polaroid on the transmission band moves forward, it is spacing to lead, realize the position location when transmitting. Meanwhile, the width of the limiting space between the first positioning guide plate and the second positioning guide plate can be adjusted in real time through the movement of the pre-positioning belt, so that the transmission of the polaroids with different sizes is adapted.

Drawings

Fig. 1 is a schematic perspective view of the present invention.

Fig. 2 is a schematic perspective view of the second embodiment of the present invention.

Fig. 3 is a third schematic perspective view of the present invention.

Fig. 4 is a schematic perspective view of the magazine mechanism of the present invention.

Fig. 5 is a schematic perspective view of the magazine assembly of the present invention.

Fig. 6 is a schematic perspective view of the setting member in fig. 5.

Fig. 7 is a second perspective view of the setting member shown in fig. 5.

Fig. 8 is a schematic perspective view of a material taking mechanism according to an embodiment of the invention.

Fig. 9 is a second perspective view of the material-taking mechanism of the present invention.

Fig. 10 is an enlarged schematic view of the structure at the point I in fig. 8.

Fig. 11 is a perspective view of the front scrubbing platform of the present invention.

Fig. 12 is a second perspective view of the front scrubbing platform of the present invention.

FIG. 13 is a perspective view of the front scrubbing mechanism of the present invention.

Fig. 14 is a second perspective view of the front scrubbing mechanism of the present invention.

FIG. 15 is a third perspective view of the front scrubbing mechanism of the present invention.

Fig. 16 is a schematic perspective view of the cloth pressing assembly of the present invention.

Fig. 17 is a perspective view of a scrub head of the present invention.

Fig. 18 is a perspective view of a scrub head of the present invention.

Fig. 19 is a perspective view of the cleaning head concealing member of the present invention.

Fig. 20 is a perspective view of a reverse scrubbing mechanism of the present invention.

Fig. 21 is a second perspective view of the reverse scrubbing mechanism of the present invention.

FIG. 22 is a perspective view of a reverse side scrubbing suction pad of the present invention.

Fig. 23 is a second perspective view of the reverse side scrubbing suction table of the present invention.

Fig. 24 is a schematic perspective view of the blanking conveying mechanism according to the present invention.

Fig. 25 is a second schematic perspective view of the blanking conveying mechanism of the present invention.

Fig. 26 is an enlarged view of fig. 25 at II.

Detailed Description

The invention will be further described with reference to the accompanying drawings in which:

as shown in fig. 1 to 26, the technical solution adopted by the present invention is as follows: an automatic scrubbing machine for polaroids 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 discharging transmission mechanism 8, wherein the material box mechanism 2 is arranged on one side of a rack 1, the front scrubbing platform 4 is arranged on one side of the material box mechanism 2, the material taking mechanism 3 is arranged between the material box mechanism 2 and the front scrubbing platform 4 in a spanning mode, and polaroid single sheets stacked by the material box mechanism 2 are taken out and placed on the front scrubbing platform 4; the front scrubbing mechanism 5 is arranged above the front scrubbing platform 4 in a spanning mode and is used for scrubbing the front of the polaroid on the scrubbing platform 4 from top to bottom; the back scrubbing mechanism 7 is arranged on one side of the front scrubbing platform 4, the back scrubbing suction table 6 is arranged above the back scrubbing mechanism 7 in a spanning mode, the back scrubbing suction table 6 sucks the polaroid subjected to the front scrubbing from the front scrubbing platform 4, and the back scrubbing mechanism 7 scrubs the back surface of the polaroid from bottom to top; the blanking transmission mechanism 8 is arranged at one side of the reverse side scrubbing mechanism 7, the reverse side scrubbing suction table 6 places the polaroid subjected to reverse side scrubbing on the blanking transmission mechanism 8, and the polaroid is linearly transmitted and initially positioned by the blanking transmission mechanism 8;

the material box mechanism 2 comprises a material shifting part 21 and a box body part 22, the box body part 22 supports the overlapped polaroids in a hanging mode, the material shifting part 21 is inserted below the box body part 22 to lift the polaroids, the polaroids are pulled upwards, and two adjacent polaroids are separated through side air blowing;

the front scrubbing mechanism 5 and the back scrubbing mechanism 7 comprise at least two sets of scrubbing heads arranged at intervals, the output ends of the scrubbing heads push the strip-shaped dust-free cloth against the polaroid, the scrubbing liquid is sprayed out to soak the dust-free cloth, the polaroid and the dust-free cloth move relatively, and the dust-free cloth scrubs the polaroid cleanly.

The material box mechanism 2 comprises at least two sets of material box components arranged in parallel, and each material box component comprises a material poking part 21 and a box body part 22 respectively; the box member 22 includes a support 221, a seat 222, an air nozzle 223 and a waste box 224, wherein the support 221 includes at least two support plates 221, the support plates 221 are connected with each other and vertically arranged to form a box-shaped space, two sides of the box-shaped space are open faces, and at least two barrier strips are arranged at intervals; the support 222 is horizontally arranged at the lower part of the box-shaped space, at least two clearance grooves are arranged on the support 222 at intervals, and a plurality of polaroids to be scrubbed are vertically stacked 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 of a tubular structure, at least two air holes are formed in the side wall of the air nozzle 223, which is close to one side of the box-shaped space, and air of the polaroids stacked up and down is separated through the air holes so that the single polaroid can be taken out; the waste material box 224 is horizontally disposed outside the support plate 221, and a plurality of polarizers taken out from the box-shaped space are detected and placed in the waste material box 224.

The material shifting part 21 comprises a material shifting linear module 211, a material shifting sliding seat 212, a rotating component, a rotating seat 217 and a shifting plate 218, wherein the material shifting linear module 211 is vertically arranged on the side part of the box body part 22; the material shifting slide seat 212 is slidably connected to the material shifting linear module 211 and is connected with the output end of the material shifting linear module 211; the rotating member is arranged on the material poking slide seat 212; the rotating base 217 is rotatably connected to the kick-off slider 212 and connected to a rotating member, and the rotating member drives the rotating base 217 to rotate; the shifting plate 218 is connected to the rotating base 217 and extends towards the box body part 22, at least two clearance groove bodies are formed in the shifting plate 218, and the clearance groove bodies in the shifting plate 218 and the clearance grooves in the support 222 are arranged in a staggered mode; when the material shifting sliding seat 212 moves vertically, the shifting plate 218 rotates to the vertical direction, after the shifting plate 218 moves to the position below the support 222, the shifting plate 218 rotates to the horizontal direction, passes through the clearance groove of the support 222 to move upwards, lifts and supports the polarizer placed on the support 222, and moves upwards along the gap between the side barrier strips of the box-shaped space to push out the polarizer upwards;

the rotating member comprises a rotating pillar 213, a rotating cylinder 214, a rotating bracket 215 and a rotating shaft 216, wherein the rotating pillar 213 is vertically connected to the upper part of the material shifting sliding seat 212; the upper end of the rotary cylinder 214 is rotatably connected to the rotary support 213, and the output end of the rotary cylinder 214 is disposed obliquely downward; the rotating bracket 215 is vertically connected to the lower part of the material shifting sliding seat 212, and the lower part of the rotating bracket 215 is provided with an installation groove; the rotating shaft 216 is rotatably disposed in the mounting groove at the lower part of the rotating bracket 215; the rotating base 217 is connected to the rotating shaft 216, an extending portion extending to a lower portion of the rotating cylinder 214 is disposed at a side portion of the rotating base 217, a connecting sleeve is rotatably disposed at the extending portion, and an output end of the rotating cylinder 214 is connected to the connecting sleeve so as to drive the rotating base 217 to rotate.

The material taking mechanism 3 comprises a material taking linear module 31, a material taking support plate 32, a material taking lifting motor 33, a material taking lifting slide 34, a material shaking cylinder 35, a material taking suction nozzle 36 and a support block 37, wherein the material taking linear module 31 is arranged on the side part of the material box mechanism 2, and the material taking support plate 32 is connected to the material taking linear module 31 and is driven by the material taking linear module 31 to move linearly; the material taking lifting motor 33 is arranged on the material taking support plate 32, and the output end of the material taking lifting motor is arranged downwards; the material taking lifting slide 34 is connected to the material taking support plate 32 in a sliding manner along the vertical direction and is connected with the output end of the material taking lifting motor 33, and the material taking lifting motor 33 drives the material taking lifting slide 34 to move up and down through a screw rod; the material shaking cylinders 35 comprise at least two groups, every two material shaking cylinders 35 are connected below the material taking lifting slide seat 34 in one group, the lower parts of the material shaking cylinders 35 are connected with material taking suction nozzles 36, and the material taking suction nozzles 36 at the lower parts of the two material shaking cylinders 35 in the same group suck polaroids from the material box mechanism 2; the supporting blocks 37 are respectively connected to the side walls of the two shaking cylinders 35 and extend downwards to support the top surface of the polarizer; the material shaking cylinder 35 drives the material taking suction nozzle 36 to shake so as to shake off the polaroid adhered to the lower part, and the material taking suction nozzle 36 upwards adsorbs the polaroids from two outer sides of the polaroid, and meanwhile, the resisting block 37 downwards resists the polaroid from the inner side, so that the polaroid adhered to the lower part falls off through the tension of the polaroid.

The front scrubbing platform 4 comprises two support guide frames 41, a platform linear module 42, a platform sliding seat 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 two support guide frames 41 are arranged below the material taking mechanism 3 in parallel at intervals; the platform linear module 42 is arranged between the two supporting guide frames 41; the platform slide 43 is slidably connected to the support guide 41, connected to the output end of the platform linear module 42, and driven by the platform linear module 42 to move linearly; the platform linear motor 44 is arranged on the platform sliding seat 43; the platform screw rod 45 is rotatably connected to the platform slide carriage 43 along a direction perpendicular to the platform linear module 42, and is connected with the output end of the platform linear motor 44; the platform screw rod seat 46 is sleeved on the platform screw rod 45; the platform support 47 is connected to the platform slide carriage 43 slidably 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 rod 45 to rotate, the platform screw rod seat 46 drives the platform support 47 to move linearly; the platform suction seats 48 include at least two platform suction seats 48, the platform suction seats 48 are uniformly arranged on the platform support 47 at intervals, and the polarizer taken out by the material taking mechanism 3 is placed on the platform suction seats 48.

The front scrubbing mechanism 5 and the back scrubbing mechanism 7 comprise scrubbing support plates 51, cloth rollers 52, cloth collecting rollers 53, dust-free cloth 54, support rollers 56, cloth pressing assemblies 58 and scrubbing heads 59, wherein the scrubbing support plates 51 are vertically arranged; the cloth roller 52 and the cloth collecting roller 53 are rotatably connected to two sides of the scrubbing support plate 51, the dust-free cloth 54 is wound on the cloth roller 52, and the outer end of the dust-free cloth 54 horizontally extends along the scrubbing support plate 51 and is connected to the cloth collecting roller 53; the support rollers 56 comprise at least two, the support rollers 56 are uniformly connected to the side walls of the scrubbing support plate 51 at intervals, a support space is formed between every two adjacent support rollers 56, the dust-free cloth 54 is supported by the support rollers 56, and a protruded horizontal scrubbing part 55 is formed on the dust-free cloth 54 at intervals of 1 support space; the end part of the supporting roller 56 is provided with a baffle 57 with the diameter larger than that of the supporting roller 56 so as to limit the dust-free cloth 54 placed on the supporting roller 56; the scrubbing heads 59 comprise at least two sets, the scrubbing heads 59 are arranged corresponding to the scrubbing part 55, the output end faces the scrubbing part 55, and the scrubbing heads 59 push the scrubbing part 55 to be close to the polaroid so as to scrub; the cloth pressing assembly 58 comprises at least two sets, the cloth pressing assembly 58 is arranged in the supporting space between two adjacent scrubbing parts 55, the output direction of the cloth pressing assembly is the same as that of the scrubbing head 59, so that scrubbing is completed, and after the scrubbing head 59 loosens the dust-free cloth 54, the cloth pressing assembly 58 presses and tensions the dust-free cloth 54.

The scrubbing head 59 comprises a scrubbing support 591, a scrubbing air cylinder 592, a scrubbing slide base 593, a scrubbing seat 594, a scrubbing pressure plate 596 and a scrubbing liquid pipe 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 towards the direction of the dust-free cloth 54; the scrubbing sliding seat 593 is connected to the scrubbing support 591 in a sliding manner in the vertical direction and is connected with the output end of the scrubbing cylinder 592, and the scrubbing cylinder 592 drives the scrubbing sliding seat 593 to move up and down; the scrubbing seat 594 is connected to the scrubbing sliding seat 593, a mounting cavity is arranged in the scrubbing seat 594, the side face, close to the dust-free cloth, of the scrubbing seat 594 is a horizontal plane, a strip-shaped liquid groove 595 is formed in the scrubbing seat 594, and the liquid groove 595 penetrates through the mounting cavity; the scrubbing liquid pipe 597 is arranged in the installation cavity, at least two liquid spraying holes are formed in the scrubbing liquid pipe 597, and scrubbing liquid in the scrubbing liquid pipe 597 is sprayed out through the liquid spraying holes and penetrates through the liquid groove 595 to contact the dust-free cloth 54; the scrubbing pressing plates 596 comprise two blocks, the two scrubbing pressing plates 596 are respectively connected to two side walls of the scrubbing seat 594, a detachable dust-free cloth is clamped and fixed between the two scrubbing pressing plates 596 and penetrates through the liquid groove 595 to cover the horizontal plane of the scrubbing seat 594, and therefore the speed and the flow rate of scrubbing liquid led out of the liquid groove 595 to contact with the dust-free cloth 54 are reduced.

The cloth pressing assembly 58 comprises a cloth pressing seat 581, a cloth pressing sliding seat 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 sliding base 582 is slidably connected to the cloth pressing base 581 in 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 with the cloth pressing sliding seat 582, the other end of the cloth pressing spring 584 is connected with the scrubbing support plate 51, and the elastic force of the cloth pressing spring 584 enables the cloth pressing roller 583 to press the dust-free cloth 54.

The back scrubbing suction table 6 comprises two suction table linear modules 61, two suction table sliding frames 62, two suction table linear motors 63, two suction table sliding seats 64, two suction table lifting motors 65, two suction table supporting seats 66, two suction table lifting seats 67 and two suction table suction seats 68, wherein the two suction table linear modules 61 are arranged in parallel at intervals; the suction table sliding frame 62 is spanned on the two suction table linear modules 61 and is connected with the output ends of the suction table linear modules 61; the suction table sliding seat 64 is slidably arranged on the suction table sliding seat 62, and the suction table linear motor 63 is arranged on one side of the suction table sliding seat 64 and is connected with the suction table sliding seat 64 through a screw rod so as to drive the suction table sliding seat 64 to move linearly; the suction table support 66 is slidably connected to the lower portion of the suction table carriage 62 and is connected to the suction table slider 64 through a connecting plate; the suction table lifting motor 65 is arranged on the suction table sliding seat 64, and the output end of the suction table lifting motor penetrates through the suction table sliding seat 64 to extend downwards; the suction table lifting seat 67 is arranged in the suction table support 66 and is connected with 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 seats 68 include at least two suction tables, the suction table suction seats 68 are uniformly arranged at the bottom of the suction table lifting seat 67 at intervals, and the suction table suction seats 68 suck the front-side scrubbed polarizer from the front-side scrubbing platform 4 through vacuum negative pressure.

The blanking 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 the linear direction, the transmission belt 82 is arranged in the transmission bracket 81 and is driven by a power mechanism to move linearly, the polarizer after the reverse-surface scrubbing on the reverse-surface scrubbing suction table 6 is placed on the transmission belt 82 and is output outwards through the transmission belt 82; the pre-positioning assembly 83 is arranged at the outlet end of the transmission belt 82, and the polarizer on the transmission belt 82 is subjected to preliminary correction when passing through the pre-positioning assembly 83;

the pre-positioning assembly 83 includes 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 835, a second connecting clamp 836 and a second positioning guide 837, wherein the pre-positioning support plate 831 is arranged above the conveying belt 82 in a straddling manner; the pre-positioning motor 832 is arranged on the pre-positioning support plate 831, and the output end of the pre-positioning motor is arranged upwards; the pre-positioning belt 833 is arranged on the pre-positioning support plate 831 and is tensioned by a rotating wheel which is 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 driving wheel; the first connecting clamp 834 and the second connecting clamp 836 are respectively connected to both sides of the pre-positioning band 833; the first positioning guide plate 835 and the second positioning guide plate 837 are vertically arranged on two sides of the conveying belt 82 respectively, are connected with the first connecting clamping block 834 and the second connecting clamping block 836 respectively, and gradually decrease the space width between the first positioning guide plate 835 and the second positioning guide plate 837 along the moving direction of the conveying belt 82, when the polarizer linearly moves along with the conveying belt 82, the polarizer is limited and corrected by the first positioning guide plate 835 and the second positioning guide plate 837, and the space width between the first positioning guide plate 835 and the second positioning guide plate 837 is adjusted by the pre-positioning motor 832.

Furthermore, the invention designs an automatic polarizer scrubbing machine which integrates the processes of simultaneous feeding, taking, front scrubbing, back scrubbing, blanking correction and the like of a plurality of polarizers, has the functions of material poking and guiding, blowing and distributing, shaking and tension to remove the plurality of polarizers, scrubbing and deviation prevention, automatic tensioning of dust-free cloth, uniform scrubbing and spraying liquid and the like, and effectively improves the scrubbing efficiency and the scrubbing quality. The invention adopts a multi-station design, particularly adopts a 6-station structure, can simultaneously realize the functions of feeding, transferring, front scrubbing and back scrubbing of 6 polaroids, effectively improves the scrubbing capacity, and can increase and decrease the number of stations according to the requirement of production line efficiency in the actual application process. Specifically, the method comprises the following steps: 1. the material box mechanism is designed originally for guiding the stacked polaroids upwards to take the polaroids, the material box mechanism comprises 6 sets of material box mechanisms, the 6 sets of material box mechanisms are arranged in parallel at intervals, the single material box mechanism comprises a box body part and a material shifting part, the box body part is a rectangular box-shaped space with an open top formed by mutually connected and vertically arranged support plates, the bottom of the rectangular box-shaped space is a support, the side part of the rectangular box-shaped space is a barrier strip, and the support and the barrier strip are provided with clearance grooves; the polaroid to be scrubbed is vertically stacked on the support, supported by the support and limited from four sides by the box-shaped space. In addition, the upper open surface of the box body part is vertically provided with an air faucet with a tubular structure, and the side wall of the air faucet facing one side of the box-shaped space is uniformly provided with at least two air holes at intervals; the outer side of the air tap is horizontally provided with a waste material box. The material shifting component is arranged at the side part of the box body component at intervals, a rotating member is arranged on a material shifting sliding seat of the material shifting component, the rotating member comprises a rotating support column, a rotating cylinder, a rotating bracket and a rotating shaft, the rotating support column is vertically arranged on the material shifting sliding seat, the upper part of the rotating cylinder is rotatably connected to the rotating support column, the rotating bracket is vertically connected to the lower part of the material shifting sliding seat, and the rotating shaft is rotatably arranged in an installation space at the bottom of the rotating bracket; the rotating shaft is connected with a rotating seat, one side of the rotating seat is connected with an output end of the rotating cylinder, which inclines downwards, the other side of the rotating seat is connected with a shifting plate, the shifting plate is also provided with a clearance groove body, and the clearance groove body is oppositely inserted and staggered with the clearance grooves arranged on the support and the barrier strip of the box body part; the power output by the rotary cylinder drives the rotary seat and the shifting plate to rotate; the shifting plate can pass through the clearance between the clearance groove of the support and the barrier strip from the lower part and move upwards. In an initial state, the shifting plate is vertically arranged downwards, when the polaroids need to be pushed outwards, the shifting plate rotates 90 degrees from the lower part to the horizontal direction, moves upwards and linearly along with the material shifting sliding seat, penetrates through the support to upwards lift the stacked polaroids, continues to move upwards, and pushes the polaroids upwards to the open surface of the material box space so as to take out the polaroids; meanwhile, when the polaroids are taken out, the air nozzles positioned at the open surfaces eject high-pressure gas towards the direction of the material box, the high-pressure gas acts on the sucked and lifted polaroids, the two adjacent polaroids are separated from each other through air pressure, and the situation that multiple pieces of materials are taken out due to the fact that the polaroids which are mutually bonded after being stacked are taken out at the same time is reduced. 2. The invention is originally designed with a material taking mechanism which is used for taking the polaroid out of the material box mechanism and transferring the polaroid to the front scrubbing platform, and the material taking mechanism is arranged in a crossing way and has the functions of linear movement and lifting movement; particularly, the material taking mechanism is provided with 6 groups of material shaking cylinders and a resisting block, the material shaking cylinders of the material shaking single group comprise two material shaking cylinders, the two material shaking cylinders are arranged at intervals, the bottom of each material shaking cylinder is connected with a material taking suction nozzle, after the material taking suction nozzle takes the polaroid out of the material box mechanism, the two material shaking cylinders respectively drive the material taking suction nozzle to shake up and down, and under the vibration of shaking power, the situation that the polaroid adhered to the lower side of the adsorbed polaroid shakes and falls off is achieved, so that the situation that a plurality of polaroids are taken out is reduced. In addition, the inner sides of the two material shaking cylinders in the single group are respectively provided with a resisting block, the resisting block is connected to the side wall of the material shaking cylinder through a connecting plate and vertically extends downwards, after the two material taking suction nozzles suck the polaroids from two sides, two outer sides of the polaroids are turned upwards, the downward resisting pressure of the two resisting blocks on the polaroids has the tendency of deforming the polaroids, and the action of bouncing off the polaroids adhered to the lower parts of the polaroids is achieved by utilizing the self-tension of the adsorbed polaroids, so that the situation of taking out a plurality of polaroids is reduced. 3. The invention is originally designed with a front scrubbing mechanism and a back scrubbing mechanism, the front scrubbing mechanism and the back scrubbing mechanism have similar structure and function but opposite arrangement direction, the scrubbing part of the front scrubbing mechanism is arranged downwards to scrub the upper part of the polaroid, and the scrubbing part of the back scrubbing mechanism is arranged upwards to scrub the lower part of the polaroid. The front scrubbing mechanism and the back scrubbing mechanism of the invention use strip-shaped dust-free cloth as scrubbing execution parts, the strip-shaped dust-free cloth stretches and extends along the horizontal direction, meanwhile, 6 scrubbing stations are arranged on the horizontal dust-free cloth at intervals, a set of cloth pressing component and a scrubbing head are respectively arranged at each scrubbing station, the scrubbing head is used for pushing out the dust-free cloth and is close to a polaroid to be scrubbed, and the cloth pressing component is used for tensioning and pulling the dust-free cloth away from the polaroid; after the dust-free cloth is pressed on the polaroid by the scrubbing head, the scrubbing head sprays scrubbing liquid to the dust-free cloth to soak the dust-free cloth, the polaroid slides linearly under the driving 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 polaroid clean; after 6 polaroids are scrubbed, the dust-free cloth is wound by the cloth collecting roller and integrally moves for a scrubbing distance, so that a new scrubbing part is replaced for scrubbing next time. Specifically, the dust-free cloth is supported and fixed by the supporting rollers which are uniformly arranged on the side wall of the scrubbing support plate at intervals, in order to ensure that the dust-free cloth deviates in the transmission process, the outer end part of the supporting roller is vertically provided with the circular baffle plate with the diameter larger than that of the supporting roller, and the baffle plate and the scrubbing support plate form a limiting effect on the dust-free cloth, so that the dust-free cloth is prevented from deviating in the rolling and moving process, and the scrubbing quality is ensured. In addition, the cloth pressing assembly and the scrubbing head are respectively arranged at two adjacent intervals formed between the supporting rollers, the output directions are the same, the pressure of the cloth pressing assembly on the dust-free cloth can enable the dust-free cloth to leave the polaroid at the scrubbing head under the natural state of the scrubbing head, when scrubbing is needed, the power output by the scrubbing head overcomes the force of the cloth pressing assembly to enable the dust-free cloth to be close to the polaroid, when the power of the scrubbing head disappears after scrubbing is completed, the dust-free cloth enables the dust-free cloth at the scrubbing head to leave the polaroid under the action of the cloth pressing assembly, the dust-free cloth is prevented from contacting the polaroid when being replaced, and the scrubbing quality is improved. The cloth pressing component comprises a cloth pressing seat, a cloth pressing sliding seat, a cloth pressing roller and a cloth pressing spring, wherein the cloth pressing is arranged on a scrubbing support plate, and the cloth pressing sliding seat is connected to the cloth pressing seat in a sliding manner along the vertical direction; the cloth pressing roller is vertically connected to the cloth pressing sliding seat 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 with the cloth pressing sliding seat, the other end of the cloth pressing spring is connected with the scrubbing support plate, and the elasticity of the cloth pressing spring enables the cloth pressing roller to press the dust-free cloth. The scrubbing head takes a scrubbing seat with a cavity structure arranged inside as an execution part, the bottom surface of the scrubbing seat is of a horizontal plane structure and is used for propping against dust-free cloth and scrubbing the surface of a polaroid, namely a scrubbing plane, and the width of the scrubbing plane is 20 mm; meanwhile, a strip-shaped liquid tank is arranged in the middle of the bottom surface of the scrubbing seat, a scrubbing liquid pipe is erected in the scrubbing seat, a plurality of liquid spraying holes are uniformly arranged on the side wall of the scrubbing liquid tank corresponding to the liquid tank at intervals, external scrubbing liquid is sprayed out through the liquid spraying holes after being guided into the scrubbing liquid pipe, penetrates through the liquid tank to contact dust-free cloth, and wets the dust-free cloth in contact with a scrubbing plane so as to facilitate scrubbing of the polaroid by the dust-free cloth, the inner diameter of the scrubbing liquid pipe is 0.8mm, and the inner diameter of the liquid spraying holes is 0.2mm so as to control the flow of the sprayed scrubbing liquid; in addition, because the thickness of standard dust-free cloth on the market is 0.5mm at the maximum, in order to prevent the excessive spray liquid flow and easily cause the excessive wiping solution residue on the surface of the polaroid during wiping, the invention is also provided with the wiping pressing plates correspondingly at two sides of the wiping seat, the wiping pressing plates can be used for fixing the independent dust-free cloth sheets, the dust-free cloth sheets cover the surface of the liquid tank to form the resistance when the wiping solution is led out, the overlapping thickness of the dust-free cloth sheets can be selectively carried out according to the requirement of the actual wiping liquid flow, and the dust-free cloth sheets can be detachably installed through the wiping pressing plates, thereby facilitating the subsequent replacement and use. 4. The invention also designs a blanking transmission mechanism with a correction function, wherein the blanking transmission mechanism takes a transmission belt as a material transmission carrier, transmits the cleaned polaroid to the next work station through the linear motion of the transmission belt, and in order to ensure the position consistency and accuracy of the guided material, a pre-positioning component is arranged at the end part of the blanking transmission mechanism, a pre-positioning support plate arranged above the transmission belt is taken as a support carrier, and a pre-positioning belt is arranged at the upper part of the pre-positioning support plate. Meanwhile, the upper part of the prepositioning support plate is also connected with a first connecting support block and a second connecting support block in a sliding manner, the first connecting support block and the second connecting support block are respectively connected to two sides of the prepositioning belt, and when the prepositioning belt moves, the first connecting support block and the second connecting support block respectively move along opposite directions. Simultaneously, connect the below of a piece and the second and connect a piece and vertically be connected with first location baffle and second location baffle respectively, first location baffle and second location baffle are vertical to be extended to on the transmission band, form the transmission space between the two, and this transmission space is by big diminishing along the moving direction opening of transmission band, the spacing space that forms through first location baffle and second location baffle when the polaroid on the transmission band moves forward, it is spacing to lead, realize the position location when transmitting. Meanwhile, the width of the limiting space between the first positioning guide plate and the second positioning guide plate can be adjusted in real time through the movement of the pre-positioning belt, so that the transmission of the polaroids with different sizes is adapted.

The embodiments of the present invention are merely illustrative of specific embodiments thereof, and are not intended to limit the scope thereof. Since the present invention can be modified by a person skilled in the art, the present invention is not limited to the embodiments described above.

Claims

1. An automatic scrubbing machine for a polarizer is characterized in that: the device 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 discharging transmission mechanism (8), wherein the material box mechanism (2) is arranged on one side of a rack (1), the front scrubbing platform (4) is arranged on one side of the material box mechanism (2), the material taking mechanism (3) is arranged between the material box mechanism (2) and the front scrubbing platform (4) in a spanning mode, and polaroid single sheets stacked by the material box mechanism (2) are taken out and placed on the front scrubbing platform (4); the front scrubbing mechanism (5) is arranged above the front scrubbing platform (4) in a spanning mode and is used for scrubbing the front of the polaroid on the scrubbing platform (4) from top to bottom; the back scrubbing mechanism (7) is arranged on one side of the front scrubbing platform (4), the back scrubbing suction table (6) is arranged above the back scrubbing mechanism (7) in a spanning mode, the back scrubbing suction table (6) sucks the polaroid subjected to the front scrubbing from the front scrubbing platform (4), and the back scrubbing mechanism (7) scrubs the back surface of the polaroid from bottom to top; the blanking transmission mechanism (8) is arranged on one side of the reverse side scrubbing mechanism (7), the reverse side scrubbing suction table (6) places the polaroid subjected to reverse side scrubbing on the blanking transmission mechanism (8), and the polaroid is linearly transmitted and initially positioned through the blanking transmission mechanism (8);

the material box mechanism (2) comprises a material shifting part (21) and a box body part (22), the box body part (22) supports the stacked polaroids in a hanging mode, the material shifting part (21) is inserted below the box body part (22) to lift the polaroids, the polaroids are pulled upwards, and two adjacent polaroids are separated through side air blowing;

the front scrubbing mechanism (5) and the back scrubbing mechanism (7) comprise at least two sets of scrubbing heads arranged at intervals, the output ends of the scrubbing heads push the strip-shaped dust-free cloth against the polaroid, scrubbing liquid is sprayed out to soak the dust-free cloth, the polaroid and the dust-free cloth move relatively, and the dust-free cloth scrubs the polaroid completely.

2. The automatic scrubbing machine for polarizer according to claim 1, wherein: the material box mechanism (2) comprises at least two sets of material box components arranged in parallel, and each material box component comprises a material poking part (21) and a box body part (22); the box body part (22) comprises support plates (221), supports (222), air nozzles (223) and a waste box (224), wherein the support plates (221) comprise at least two support plates (221), the support plates (221) are mutually connected and vertically arranged to form a box-shaped space, two sides of the box-shaped space are open surfaces, and at least two barrier strips are arranged at intervals; the support (222) is horizontally arranged at the lower part of the box-shaped space, at least two clearance grooves are arranged on the support (222) at intervals, and a plurality of polaroids to be scrubbed are vertically stacked on the support (222); the air nozzle (223) is vertically arranged on the side wall of the support plate (221) and is close to the upper part of the box-shaped space, the air nozzle (223) is of a tubular structure, at least two air holes are formed in the side wall of the air nozzle (223) close to one side of the box-shaped space, and air is blown out from the polaroids stacked up and down through the air holes to be separated so that the single polaroids can be taken out; the waste material box (224) is horizontally arranged at the outer side of the support plate (221), and a plurality of polaroids taken out from the box-shaped space are placed in the waste material box (224) after being detected.

3. The automatic scrubbing machine for polarizer according to claim 2, wherein: the material shifting component (21) comprises a material shifting linear module (211), a material shifting sliding seat (212), a rotating component, a rotating seat (217) and a shifting plate (218), wherein the material shifting linear module (211) is vertically arranged on the side part of the box body component (22); the material shifting sliding seat (212) is connected to the material shifting linear module (211) in a sliding manner and is connected with the output end of the material shifting linear module (211); the rotating component is arranged on the material poking sliding seat (212); the rotating seat (217) is rotatably connected to the material shifting sliding seat (212) and is connected with a rotating member, and the rotating member drives the rotating seat (217) to rotate; the shifting plate (218) is connected to the rotating seat (217) and extends towards the box body part (22), at least two clearance groove bodies are formed in the shifting plate (218), and the clearance groove bodies in the shifting plate (218) and the clearance grooves in the support (222) are arranged in a staggered mode; when the material shifting sliding seat (212) moves vertically, the shifting plate (218) rotates to the vertical direction, after the shifting plate (218) moves to the position below the support (222), the shifting plate (218) rotates to the horizontal direction, penetrates through the clearance groove of the support (222) and moves upwards, lifts and supports the polaroid placed on the support (222), and moves upwards along the gap between the side barrier strips of the box-shaped space to push the polaroid upwards;

the rotating component comprises a rotating support column (213), a rotating cylinder (214), a rotating bracket (215) and a rotating shaft (216), wherein the rotating support column (213) is vertically connected to the upper part of the material stirring sliding seat (212); the upper end of the rotary cylinder (214) is rotatably connected to the rotary support column (213), and the output end of the rotary cylinder (214) is arranged obliquely downwards; the rotary bracket (215) is vertically connected to the lower part of the material shifting sliding seat (212), and the lower part of the rotary bracket (215) is provided with an installation groove; the rotating shaft (216) is rotatably arranged in the mounting groove at the lower part of the rotating bracket (215); the rotating base (217) is connected to the rotating shaft (216), an extending part extending to the lower part of the rotating cylinder (214) is arranged on the side part of the rotating base (217), a connecting sleeve is rotatably arranged at the extending part, and the output end of the rotating cylinder (214) is connected with the connecting sleeve so as to drive the rotating base (217) to rotate.

4. The automatic scrubbing machine for a polarizer of claim 3, wherein: the material taking mechanism (3) comprises a material taking linear module (31), a material taking support plate (32), a material taking lifting motor (33), a material taking lifting slide seat (34), a material shaking cylinder (35), a material taking suction nozzle (36) and a support block (37), wherein the material taking linear module (31) is arranged on the side part of the material box mechanism (2), and the material taking support plate (32) is connected to the material taking linear module (31) and is driven by the material taking linear module (31) to move linearly; the material taking lifting motor (33) is arranged on the material taking support plate (32), and the output end of the material taking lifting motor is arranged downwards; the material taking lifting slide seat (34) is connected to the material taking support plate (32) in a sliding mode along the vertical direction and is connected with the output end of the material taking lifting motor (33), and the material taking lifting motor (33) drives the material taking lifting slide seat (34) to move up and down through a screw rod; the material shaking cylinders (35) comprise at least two groups, every two of the material shaking cylinders (35) are connected below the material taking lifting slide seat (34), the lower parts of the material shaking cylinders (35) are connected with material taking suction nozzles (36), and the material taking suction nozzles (36) at the lower parts of the two material shaking cylinders (35) in the same group suck polaroids from the material box mechanism (2); the resisting blocks (37) are respectively connected to the side walls of the two shaking cylinders (35) and extend downwards to resist the top surface of the polaroid; the material shaking cylinder (35) drives the material taking suction nozzle (36) to shake so as to shake off the polaroid adhered to the lower part, and the material taking suction nozzle (36) upwards adsorbs the polaroid from two outer sides of the polaroid, and meanwhile, the support block (37) downwards supports the polaroid from the inner side, so that the polaroid adhered to the lower part falls off through the tension of the polaroid.

5. The automatic scrubbing machine for polarizer according to claim 4, wherein: the front scrubbing platform (4) comprises two supporting guide frames (41), a platform linear module (42), a platform sliding seat (43), a platform linear motor (44), a platform screw rod (45), a platform screw rod seat (46), a platform support (47) and a platform suction seat (48), wherein the two supporting guide frames (41) are arranged below the material taking mechanism (3) in parallel at intervals; the platform straight line module (42) is arranged between the two supporting guide frames (41); the platform sliding seat (43) is connected to the supporting guide frame (41) in a sliding way, is connected with 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 sliding seat (43); the platform screw rod (45) is rotatably connected to the platform sliding seat (43) along the direction vertical to the platform linear module (42) and is connected with the output end of the platform linear motor (44); the platform screw rod seat (46) is sleeved on the platform screw rod (45); the platform support (47) is connected to the platform slide carriage (43) in a sliding manner along the direction of the platform screw rod (45) and is connected with the platform screw rod seat (46); when the platform linear motor (44) drives the platform screw rod (45) to rotate, the platform screw rod seat (46) drives the platform support (47) to move linearly; the platform suction seats (48) comprise at least two platform suction seats (48), the platform suction seats (48) are uniformly arranged on the platform support (47) at intervals, and the polaroids taken out by the material taking mechanism (3) are placed on the platform suction seats (48).

6. The automatic scrubbing machine for polarizer according to claim 5, wherein: the front scrubbing mechanism (5) and the back scrubbing mechanism (7) comprise scrubbing support plates (51), cloth rollers (52), cloth collecting rollers (53), dust-free cloth (54), support rollers (56), cloth pressing assemblies (58) and scrubbing heads (59), wherein the scrubbing support plates (51) are vertically arranged; the cloth roller (52) and the cloth collecting roller (53) are rotatably connected to two sides of the scrubbing support plate (51), the dust-free cloth (54) is wound on the cloth roller (52), and the outer end of the dust-free cloth (54) horizontally extends along the scrubbing support plate (51) and is connected to the cloth collecting roller (53); the support rollers (56) comprise at least two, the support rollers (56) are uniformly connected to the side wall of the scrubbing support plate (51) at intervals, a support space is formed between every two adjacent support rollers (56), the dust-free cloth (54) is supported by the support rollers (56), and a protruded horizontal scrubbing part (55) is formed on the dust-free cloth (54) which is separated by 1 support space; the end part of the supporting roller (56) is provided with a baffle (57) with the diameter larger than that of the supporting roller (56) so as to limit the dust-free cloth (54) placed on the supporting roller (56); the scrubbing heads (59) comprise at least two sets, the scrubbing heads (59) are arranged corresponding to the scrubbing part (55), the output end faces the scrubbing part (55), and the scrubbing heads (59) push the scrubbing part (55) to be close to the polaroid so as to scrub; the cloth pressing assemblies (58) comprise at least two sets, the cloth pressing assemblies (58) are arranged in the supporting space between two adjacent scrubbing parts (55), the output direction of the cloth pressing assemblies is the same as that of the scrubbing heads (59), so that scrubbing is finished, and after the scrubbing heads (59) loosen the dust-free cloth (54), the cloth pressing assemblies (58) press and tension the dust-free cloth (54).

7. The automatic scrubbing machine for polarizer according to claim 6, wherein: the scrubbing head (59) comprises a scrubbing support (591), a scrubbing cylinder (592), a scrubbing sliding seat (593), a scrubbing seat (594), a scrubbing pressing plate (596) and a scrubbing liquid pipe (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 of the scrubbing cylinder is arranged towards the direction of the dust-free cloth (54); the scrubbing sliding seat (593) is connected to the scrubbing support (591) in a sliding mode in the vertical direction and is connected with the output end of the scrubbing air cylinder (592), and the scrubbing air cylinder (592) drives the scrubbing sliding seat (593) to move up and down; the scrubbing seat (594) is connected to the scrubbing sliding seat (593), a mounting cavity is arranged in the scrubbing seat (594), the side face, close to the dust-free cloth, of the scrubbing seat (594) is a horizontal plane, a strip-shaped liquid groove (595) is formed in the scrubbing seat, and the liquid groove (595) penetrates through the mounting cavity; the scrubbing liquid pipe (597) is arranged in the installation cavity, at least two liquid spraying holes are formed in the scrubbing liquid pipe (597), scrubbing liquid in the scrubbing liquid pipe (597) is sprayed out through the liquid spraying holes and penetrates through the liquid groove (595) to contact the dust-free cloth (54); the scrubbing pressing plates (596) comprise two blocks, the two scrubbing pressing plates (596) are respectively connected to two side walls of the scrubbing seat (594), detachable dust-free cloth is clamped and fixed between the two scrubbing pressing plates (596), and the detachable dust-free cloth penetrates through the liquid groove (595) to cover the horizontal plane of the scrubbing seat (594) so as to reduce the speed and the flow rate of scrubbing liquid led out from the liquid groove (595) and contacting with the dust-free cloth (54).

8. The automatic scrubbing machine for a polarizer of claim 7, wherein: the cloth pressing assembly (58) comprises a cloth pressing seat (581), a cloth pressing sliding seat (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 sliding seat (582) is connected to the cloth pressing seat (581) in a sliding way along the vertical direction; the cloth pressing roller (583) is vertically connected to the cloth pressing sliding seat (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 with the cloth pressing sliding seat (582), the other end of the cloth pressing spring is connected with the scrubbing support plate (51), and the elastic force of the cloth pressing spring (584) enables the cloth pressing roller (583) to press the dust-free cloth (54).

9. The automatic scrubbing machine for polarizer according to claim 8, wherein: the back scrubbing suction table (6) comprises two suction table linear modules (61), two suction table sliding frames (62), two suction table linear motors (63), two suction table sliding seats (64), two suction table lifting motors (65), two suction table supporting seats (66), two suction table lifting seats (67) and two suction table suction seats (68), wherein the two suction table linear modules (61) are arranged in parallel at intervals; the suction table sliding frame (62) is arranged on the two suction table linear modules (61) in a spanning mode and is connected with the output ends of the suction table linear modules (61); the suction table sliding seat (64) is slidably arranged on the suction table sliding seat (62), and the suction table linear motor (63) is arranged on one side of the suction table sliding seat (64) and is connected with the suction table sliding seat (64) through a screw rod so as to drive the suction table sliding seat (64) to move linearly; the suction table support (66) is connected to the lower part of the suction table sliding frame (62) in a sliding way and is connected with the suction table sliding seat (64) through a connecting plate; the suction table lifting motor (65) is arranged on the suction table sliding seat (64), and the output end of the suction table lifting motor penetrates through the suction table sliding seat (64) to extend downwards; the suction table lifting seat (67) is arranged in the suction table support (66) and is connected with 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 seats (68) comprise at least two blocks, the suction table suction seats (68) are uniformly arranged at the bottom of the suction table lifting seat (67) at intervals, and the suction table suction seats (68) suck the polaroid subjected to front scrubbing from the front scrubbing platform (4) through vacuum negative pressure.

10. The automatic scrubbing machine for a polarizer of claim 9, wherein: the blanking transmission mechanism (8) comprises a transmission support (81), a transmission belt (82) and a pre-positioning assembly (83), wherein the transmission support (81) is arranged along the linear direction, the transmission belt (82) is arranged in the transmission support (81) and is driven by a power mechanism to move linearly, the polaroid on the back surface scrubbing suction table (6) after the back surface scrubbing is placed on the transmission belt (82), and is output outwards through the transmission belt (82); the pre-positioning assembly (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 assembly (83).

11. 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 clamping block (834), a first positioning guide plate (835), a second connecting clamping block (836) and a second positioning guide plate (837), wherein the pre-positioning support plate (831) is arranged above the conveying belt (82) in a crossing mode; the pre-positioning motor (832) is arranged on the pre-positioning support plate (831), and the output end of the pre-positioning motor is arranged upwards; the pre-positioning belt (833) is arranged on the pre-positioning support plate (831) and is tensioned through a rotating wheel which is 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 driving wheel; the first connecting clamping block (834) and the second connecting clamping block (836) are respectively connected to two sides of the preset belt (833); the first positioning guide plate (835) and the second positioning guide plate (837) are vertically arranged on two sides of the conveying belt (82) respectively, are connected with the first connecting clamping block (834) and the second connecting clamping block (836) respectively, and move along the conveying belt (82), the space width between the first positioning guide plate (835) and the second positioning guide plate (837) is gradually reduced, when the polaroid moves linearly along with the conveying belt (82), the polaroid is limited and corrected through the first positioning guide plate (835) and the second positioning guide plate (837), and the space width between the first positioning guide plate (835) and the second positioning guide plate (837) is adjusted through the pre-positioning motor (832).