CN217606842U - High-speed high-precision edge cleaning equipment for thin-film solar cell - Google Patents

Abstract

The utility model relates to a high-speed high-precision edge cleaning device for a thin-film solar cell, which comprises a frame, a feeding machine, an edge cleaning machine, a carrying mechanism and a blanking machine; the space area formed between the base, the stand column of the rack, the first section beam and the second section beam is sequentially divided into three areas along the X negative direction, namely a feeding area, a processing area and a discharging area, the three areas are respectively used for arranging a feeding machine, an edge cleaning machine and a discharging machine, and the carrying mechanism is erected on the first section beam arranged along the X direction. The utility model discloses compare in prior art, solar cell is short, the machining precision is high, clear limit processing route and clear limit width are nimble adjustable, realize full automatic feeding, automatic alignment clear limit and automatic unloading in the inside processing transmission path of equipment, need not human intervention.

Description

High-speed high-precision edge cleaning equipment for thin-film solar cell

Technical Field

The utility model relates to a solar cell processes the relevant technical field, especially relates to clear limit equipment of high-speed high accuracy of thin-film solar cell.

Background

The edge cleaning process is an important process before the airtight packaging of the thin-film solar cell substrate, and has two main purposes, wherein one purpose is to prevent the thin-film solar cell from being in contact with a metal frame to generate short circuit during the installation, and the other purpose is to prevent the edge film layer from being separated to cause the airtight packaging failure.

The method has the advantages that the defects of obvious method are that the processing working condition is severe, the environment is easily polluted, the battery film layer is polluted, and the photoelectric conversion efficiency of the battery is further imaged. The mode of adopting mechanical roller friction and spatula, its clear limit effect depends on scraper wearing and tearing degree, and the effect is extremely unstable, and efficiency is very low, and more importantly the gyro wheel that mechanical roller friction was used and the spiller that the spatula was used belong to high-priced easy-to-wear article, have increased manufacturing cost in the intangible.

In recent years, laser processing has become the main edge-cleaning processing mode of thin-film solar cells, and a laser in the power range of 100-1500W is generally adopted as an edge-cleaning processing light source in the industry.

The documents CN201410323999 and CN202110930087 respectively provide a laser edge cleaning solution and a laser edge cleaning device, wherein the solution of CN201410323999 adopts a combination of mechanical handling and platform movement to convey glass to perform the edge cleaning action. The mechanical positioning is adopted, so that the defects of poor alignment precision, difficulty in accurately controlling edge cleaning size and the like are overcome; secondary carrying and positioning are involved in the edge cleaning process, the risk of damage to the battery piece is large, and the processing efficiency is not high;

the scheme of application number CN202110930087 adopts earlier to carry out the score cut line with low-power laser system, divide into active area and invalid area with the battery piece, then clear away the scheme of invalid area with high power laser system, the preferred needs adopt eight sets of laser module to carry out the clear limit processing, the linear drive mechanism reciprocating motion that relies on of clearing away of cut line and invalid area rete is restricted to mechanical motion speed limit, its whole piece machining efficiency is difficult to have the promotion, and equipment cost can be very high moreover. Besides these common problems, the edge deletion path is not flexible enough.

In view of the above-mentioned defects, the present designer is actively making research and innovation to create a thin film solar cell high-speed and high-precision edge-cleaning device, so that the thin film solar cell has industrial utilization value.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model aims at providing a high-speed high accuracy clear limit equipment of thin-film solar cell.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the high-speed high-precision edge cleaning equipment for the thin-film solar cell comprises a rack, a feeding machine, an edge cleaning machine, a carrying mechanism, a dust collection following mechanism and a blanking machine; the frame includes the base, the setting plays supporting role's a plurality of frame stand on the base, and set up and connect the first section bar roof beam and the second section bar roof beam of frame stand along the X direction and along the Y direction, the base, the frame stand, the spatial zone who forms between first section bar roof beam and the second section bar roof beam is divided into three district along X minus direction in proper order, promptly, the material loading level, processing district and unloading district, be used for arranging the material loading machine respectively, clear limit machine and blanking machine, handling mechanism erects on the first section bar roof beam that sets up along the X direction.

As a further improvement, the material loading machine comprises an aluminum profile frame, a conveying assembly arranged on the aluminum profile frame, a jacking mechanism arranged below the conveying assembly and fixed on the base, and a regular mechanism arranged on the jacking mechanism.

As a further improvement of the utility model, the transmission component comprises a driving unit, a transmission unit and a transmission unit, and the driving unit and the transmission unit are in power transmission through the transmission unit; the driving unit is arranged in the middle of one side of the aluminum profile rack along the positive Y direction, the transmission unit is arranged along the X direction and is positioned in the middle of the transmission unit, a plurality of conveying units are uniformly arranged on the aluminum profile rack along the X direction and are arranged along the Y direction; the driving unit comprises a feeding motor, a speed reducer and a first driving wheel arranged on an output shaft of the speed reducer; the transmission unit consists of a transmission shaft and a plurality of second transmission wheels arranged on the transmission shaft, wherein the transmission shaft is parallel to the flow sheet direction; the conveying unit consists of a conveying shaft which is perpendicular to the flow sheet direction, a third driving wheel which is arranged at the end part of the conveying shaft, a plurality of conveying wheels which are arranged on the conveying shaft and a plurality of bearings which support the conveying shaft.

As the utility model discloses a further improvement, climbing mechanism includes centering supporting component, sets up jacking unit, drive centering supporting component and the jacking unit of jacking unit on centering supporting component along the jacking drive module of Z axle direction motion, and the jacking unit equipartition is on centering supporting component's mounting panel, and the jacking unit includes the jacking stand and is located the buffer chip at jacking stand top.

As a further improvement of the utility model, the regulating mechanism comprises a first regulating component and a second regulating component; the first regulating assembly regulates the positions of the battery pieces along the flow piece direction, the first regulating assembly comprises a fixed regulating unit and a moving regulating unit, the fixed regulating unit is fixed on the mounting plate, the moving regulating unit is connected with the jacking mechanism through a moving unit at the lower end, the moving regulating unit can reciprocate along the X direction under the driving of the moving unit, and the regulation of the flow piece direction of the battery pieces is realized by matching with the fixed regulating unit which plays a role in position limiting; the regular subassembly of second includes regular drive assembly and sets up the regular unit of being connected at climbing mechanism along the both sides of X direction and through hold-in range and regular drive assembly, and regular unit passes through the linear guide rail of lower extreme and is connected with climbing mechanism, and regular unit can freely remove along the Y direction on linear guide rail.

As a further improvement, the aluminum profile rack is provided with a fixed stop unit along one side of the X negative direction, and the aluminum profile rack is also provided with a sensor along one side of the X positive direction.

As a further improvement, the transport mechanism includes two transport straight line drive module along the setting of X axle direction, and erect the material module of getting on transport straight line drive module, the power input end of two transport straight line drive modules is connected with synchronous transmission shaft, the transport motor carries out power transmission through synchronous transmission shaft and two transport straight line drive modules, get the material module including the transport frame with install a plurality of clamping jaw subassembly in the transport frame, it is connected with the active cell of the transport straight line drive module of both sides respectively along the X direction to get the material module.

As a further improvement of the utility model, the edge cleaning machine comprises a base platform, an edge cleaning linear driving module which is arranged on the base platform and can be driven along the X axis and the Y axis, a laser processing assembly arranged on the edge cleaning linear driving module, and an image unit arranged at the hollow position of the four corners of the base platform; the laser processing assembly comprises a laser, a micro-motion module base arranged in the optical box, a first reflecting mirror, a scanning vibrating mirror and a focusing mirror, wherein the first reflecting mirror, the scanning vibrating mirror and the focusing mirror are arranged on the micro-motion module base, a second reflecting mirror is arranged on one side of the focusing mirror along the positive direction of the Y axis, laser emitted by the laser sequentially enters the scanning vibrating mirror and the focusing mirror after passing through the first reflecting mirror, and light beams are focused by the focusing mirror and then reflected by the second reflecting mirror and are ejected along the horizontal direction perpendicular to the optical box.

As a further improvement, the light outlet of the light box of the laser processing assembly is provided with a high-transparency window sheet, and one side of the high-transparency window sheet is provided with a blowing device.

As the utility model discloses a further improvement still includes collection dirt follower, and collection dirt follower sets up on the aluminium alloy of the equipment housing of transport mechanism top, and collection dirt follower is including can be along X axle and Y axial driven collection dirt sharp module, and the drive end on the collection dirt sharp module is connected with can be along Z axial driven collection dirt drive module, and the drive end on the collection dirt drive module is connected with collection dirt subassembly.

Borrow by above-mentioned scheme, the utility model discloses at least, have following advantage:

1. the utility model discloses compare in prior art, solar cell is short, the machining precision is high, clear limit processing route and clear limit width are nimble adjustable, realize full automatic feeding, automatic alignment clear limit and automatic unloading in the inside processing transmission path of equipment, need not human intervention.

2. In the edge cleaning processing process, the cell is clamped by the carrying mechanism at one time, and the middle part does not need to be transferred and repeatedly mechanically aligned, so that the transmission path of the cell in the equipment is shortened to the maximum extent, and the damage to the thin-film solar cell in the processing process is reduced, and the photoelectric conversion efficiency of the cell is further influenced; even if the clamping jaw can contact the edge membrane surface of the battery piece in the carrying process, the contact area is the area to be cleaned, and the clamping jaw is designed to be a film damage prevention layer, so that the effective area of the battery piece cannot be damaged.

3. The edge cleaning path and the edge cleaning width can be flexibly controlled, the edge cleaning processing range completely covers the whole breadth of the battery piece, and the requirements of any edge cleaning position and edge cleaning width in the breadth range of the battery piece can be met.

4. The utility model discloses introduce the image and grab target technique and carry out the accurate positioning to the battery piece, for the mechanical positioning method among the prior art scheme, counterpoint speed is faster, and the machining precision is higher.

The above description is only an outline of the technical solution of the present invention, and in order to make the technical means of the present invention more clearly understood and to be implemented in accordance with the content of the specification, the following detailed description will be given of preferred embodiments of the present invention in conjunction with the accompanying drawings.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic structural diagram of the high-speed high-precision edge cleaning equipment for the thin-film solar cell of the present invention;

FIG. 2 is a schematic view of the frame of FIG. 1;

FIG. 3 is a schematic structural diagram of the feeder in FIG. 1;

FIG. 4 is an enlarged view of a portion of FIG. 3 at A;

FIG. 5 is a partial enlarged view at B in FIG. 3;

FIG. 6 is a schematic structural view of the jacking mechanism and the regulating mechanism of FIG. 3;

FIG. 7 is a schematic structural view of the carrying mechanism in FIG. 1;

FIG. 8 is an enlarged view of a portion of FIG. 7 at A;

FIG. 9 is a schematic structural diagram of the edge trimmer of FIG. 1;

FIG. 10 is a schematic diagram of the laser machining assembly of FIG. 9;

fig. 11 is a schematic view showing the structure of the dust collection following mechanism in fig. 1.

In the drawings, the meanings of the reference numerals are as follows.

100. Rack 200 material loading machine

300. Edge trimmer 400 carrying mechanism

500. Blanking machine with dust collection following mechanism 600

110. Base 120 frame column

130. First profile Beam 140 second profile Beam

150. Foot cup 210 aluminum section frame

211. Fixed gear stop unit 212 sensor

220. Driving unit of transfer module 221

2211. Feeding driving motor 2212 speed reducer

2213. First driving wheel 222 driving unit

2221. Transmission shaft 2222 second transmission wheel

223. Transfer unit 2231 transfer shaft

2232. Third driving wheel of transfer wheel 2233

2234. Bearing 230 jacking mechanism

231. Centering support assembly 2311 mounting plate

232. Jacking unit 2321 jacks up column

2322. Buffer plate 233 lifting driving module

240. First regularizing assembly of regularizing mechanism 241

2411. Fixed warping unit 2412 motion warping unit

242. Second regularizing assembly 2421 regularizing drive assembly

2422. Warping unit 310 base platform

320. Clear limit sharp drive module 330 laser beam machining subassembly

331. Laser 332 micromotion module base

333. First reflector 334 scanning galvanometer

335. Focusing mirror 336 second reflecting mirror

337. High-transmittance window sheet 338 blowing device

340. Linear driving module for transporting image unit 410

411. Synchronous drive shaft 412 handling motor

420. Material taking module 421 carrying frame

422. Dust collection linear module of clamping jaw assembly 510

520. Dust collection driving module of dust collection assembly 530

Detailed Description

The following detailed description of the embodiments of the present invention is made with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

In order to make the technical solution of the present invention better understood, the technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiment of the present invention, all other embodiments obtained by the person skilled in the art without creative work belong to the protection scope of the present invention.

Examples

As shown in figures 1 to 11 of the drawings,

the high-speed high-precision edge cleaning equipment for the thin-film solar cell comprises a rack 100, a feeding machine 200, an edge cleaning machine 300, a carrying mechanism 400 and a blanking machine 600; the rack 100 comprises a base 110, a plurality of rack uprights 120 arranged on the base 110 for supporting, and a first profile beam 130 and a second profile beam 140 which are arranged along the X direction and the Y direction and are connected with the rack uprights 120, wherein a space area formed among the base 110, the rack uprights 120, the first profile beam 130 and the second profile beam 140 is sequentially divided into three areas along the X negative direction, namely a loading area, a processing area and a blanking area, which are respectively used for arranging a loading machine 200, an edge cleaning machine 300 and a blanking machine 600, a carrying mechanism 400 is erected on the first profile beam 130 arranged along the X direction, and a plurality of foot cups 150 are arranged at the bottom of the base 110.

Preferably, the feeding machine 200 includes an aluminum profile frame 210, a conveying assembly 220 disposed on the aluminum profile frame 210, a jacking mechanism 230 disposed below the conveying assembly 220 and fixed on the base 110, and a regulating mechanism 240 disposed on the jacking mechanism 230.

Preferably, the transmission assembly 220 includes a driving unit 221, a transmission unit 222 and a transmission unit 223, the driving unit 221 performs power transmission with the transmission unit 223 through the transmission unit 222; the driving unit 221 is arranged at the middle position of one side of the aluminum profile rack 210 along the positive Y direction, the transmission unit 222 is arranged along the X direction, the driving unit 221 is arranged at the middle position of the transmission unit 222, a plurality of conveying units 223 are uniformly arranged on the aluminum profile rack 210 along the X direction, and the conveying units 223 are arranged along the Y direction; the driving unit 221 includes a feeding motor 2211, a reducer 2212, and a first driving wheel 2213 disposed on an output shaft of the reducer; the transmission unit 222 is composed of a transmission shaft 2221 and a plurality of second transmission wheels 2222 arranged on the transmission shaft 2221, wherein the transmission shaft 2221 is parallel to the flow sheet direction; the transfer unit 223 is composed of a transfer shaft 2231 disposed perpendicular to the flow sheet direction, a third driving wheel 2233 disposed at an end of the transfer shaft 2231, a plurality of transfer wheels 2232 disposed on the transfer shaft 2231, and a plurality of bearings 2234 supporting the transfer shaft 2231.

Preferably, the jacking mechanism 230 includes a centering support component 231, a jacking unit 232 disposed on the centering support component 231, and a jacking driving module 233 driving the centering support component 231 and the jacking unit 232 to move along the Z-axis direction, the jacking units 232 are uniformly distributed on the mounting plate 2311 of the centering support component 231, and each jacking unit 232 includes a jacking upright 2321 and a buffer sheet 2322 located at the top of the jacking upright 2321.

Preferably, the normalization mechanism 240 includes a first normalization assembly 241 and a second normalization assembly 242; the first regulating assembly 241 regulates the positions of the battery pieces along the flow piece direction, the first regulating assembly 241 comprises a fixed regulating unit 2411 and a moving regulating unit 2412, the fixed regulating unit 2411 is fixed on the mounting plate 2311, the moving regulating unit 2412 is connected with the jacking mechanism 230 through a moving unit at the lower end, the moving regulating unit 2412 can reciprocate along the X direction under the driving of the moving unit, and the regulation of the flow piece direction of the battery pieces is realized by matching with the fixed regulating unit 2411 which plays a role in position limiting; the second warping assembly comprises a warping driving assembly 2421 and warping units 2422 which are arranged on two sides of the jacking mechanism 230 along the X-axis direction and connected with the warping driving assembly 2421 through synchronous belts, the warping units 2422 are connected with the jacking mechanism 230 through linear guide rails at the lower end, and the warping units 2422 can freely move on the linear guide rails along the Y direction.

Preferably, a fixed stop unit 211 is disposed on one side of the aluminum profile frame 210 along the negative X direction, and a sensor 212 is further disposed on one side of the aluminum profile frame 210 along the positive X direction.

Preferably, the carrying mechanism 400 includes two carrying linear driving modules 410 arranged along the X-axis direction, and a material taking module 420 erected on the carrying linear driving modules 410, power input ends of the two carrying linear driving modules 410 are connected with a synchronous transmission shaft 411, the carrying motor 412 performs power transmission with the two carrying linear driving modules 410 through the synchronous transmission shaft 411, the material taking module 420 includes a carrying frame 421 and a plurality of clamping jaw assemblies 422 installed in the carrying frame 421, and the material taking module 420 is respectively connected with the movers of the carrying linear driving modules 410 on both sides along the X-axis direction.

Preferably, the edge cleaning machine 300 includes a base platform 310, an edge cleaning linear driving module 320 mounted on the base platform 310 and capable of driving along the X axis and the Y axis, a laser processing assembly 330 disposed on the edge cleaning linear driving module 320, and an image unit 340 disposed at a hollow position at four corners of the base platform 310; the laser processing assembly 330 includes a laser 331, a micro-motion module base 332 disposed in the optical box, a first reflector 333, a scanning oscillating mirror 334, and a focusing mirror 335 disposed on the micro-motion module base 332, a second reflector 336 disposed on one side of the focusing mirror 335 along the positive direction of the Y axis, the laser emitted by the laser 331 sequentially enters the scanning oscillating mirror 334 and the focusing mirror 335 after passing through the first reflector 333, the light beam is focused by the focusing mirror 335, then reflected by the second reflector 336, and emitted in the direction perpendicular to the horizontal direction.

Preferably, a high-transmittance window piece 337 is disposed at the light outlet of the light box of the laser processing assembly 330, and a blowing device 338 is disposed at one side of the high-transmittance window piece 337.

Preferably, still include collection dirt following mechanism 500, collection dirt following mechanism 500 sets up on the aluminium alloy of the equipment housing above handling mechanism 400, and collection dirt following mechanism 500 includes can be along the driven collection dirt straight line module 510 of X axle and Y axle, and the drive end on the collection dirt straight line module 510 is connected with can be along the driven collection dirt drive module 530 of Z axle, and the drive end on the collection dirt drive module 530 is connected with collection dirt subassembly 520.

The utility model discloses a concrete implementation mode:

fig. 1 shows an overall structure diagram of a high-speed and high-precision edge cleaning apparatus for thin-film solar cells in one embodiment of the present invention, and it can be seen that in this embodiment, the apparatus mainly includes: the machine comprises a rack 100, a feeding machine 200, an edge cleaner 300, a conveying mechanism 400, a dust collection following mechanism 500 and a blanking machine 600. All the mechanisms are arranged on the frame according to a certain spatial relationship according to the processing path, and then a unified whole is formed. After entering the equipment, the solar cell is subjected to primary arrangement and positioning on the feeding machine 200, then the cell is conveyed to the processing station of the edge cleaning machine 300 through the carrying mechanism 400, and the edge cleaning machine 300 starts to carry out edge cleaning operation according to preset parameters after carrying out target grabbing and positioning on the cell corners. After the edge cleaning is finished, the carrying mechanism 400 carries the battery pieces to the blanking area, and the blanking machine 600 finishes discharging and flowing out.

An embodiment of the present invention, a rack 100, is described with reference to fig. 1-2. The frame 100 comprises a base 110, a plurality of frame columns 120 arranged on two sides of the base for supporting, and a first section beam 130 and a second section beam 140 which are connected with the frame columns 120 transversely and longitudinally. The spatial area formed by the base 110, the frame upright 120, the first profile beam 130 and the second profile beam 140 is divided into three zones, namely a loading zone, a processing zone and a blanking zone. Respectively for arranging the feeder 200, the edge trimmer 300 and the unloader 600. Furthermore, the carrying mechanism 400 is mounted on the first section bar 130, and the dust-collecting following mechanism 500 is mounted on the cover aluminum section bar beam (not shown) above the carrying mechanism. In this embodiment, the frame column 120 may be made of square steel or aluminum profile, and the frame column 120 may be designed to be fine-tuned along the Y direction to ensure that the two conveying linear driving modules 410 of the conveying mechanism 400 are parallel. The foot cup 150 is arranged at the position of the impact point below the base, so that the whole device can be conveniently adjusted to be horizontal.

Referring to fig. 3 to 6, the loader 200 includes: the aluminum profile frame comprises an aluminum profile frame 210, a conveying assembly 220 arranged on the aluminum profile frame, a jacking mechanism 230 arranged below the conveying assembly, and a regulating mechanism 240 arranged on the jacking mechanism.

The conveying assembly 220 mainly functions to transport and convey the battery pieces entering the device, and mainly comprises a driving unit 221, a transmission unit 222 and a conveying unit 223. The driving unit 221 includes a feeding motor 2211, a speed reducer 2212, and a first driving wheel 2213 disposed on an output shaft of the speed reducer; the transmission unit 222 mainly comprises a transmission shaft 2221 and a plurality of second transmission wheels 2222 arranged on the transmission shaft; wherein the transmission shaft is parallel to the flow sheet direction, and the driving unit 221 is arranged in the middle of the transmission unit; the transfer unit 223 is composed of a transfer shaft 2231 disposed perpendicular to the flow sheet direction, a third driving wheel 2233 disposed at an end of the transfer shaft 2231, a plurality of transfer wheels 2232 disposed on the transfer shaft 2231, and a plurality of bearings 2234 supporting the transfer shaft 2231. The driving unit 221 and the transmission unit 222 may be connected through a synchronous belt, a chain or a magnetic wheel, and the transmission wheel may be a synchronous pulley, a belt pulley, a chain wheel or a magnetic wheel; the transmission unit 222 and the transmission unit 223 can also be connected through a gear or a magnetic wheel, and the transmission wheel is a gear or a magnetic wheel. The length of the transfer shaft 2231 can be determined according to the size of the battery piece, and the number and the interval of the transfer units, and the number of the transfer wheels on the transfer units can be determined according to the transfer distance, the transfer stability and the like. In consideration of the environment where the device is used, the feeder driving unit 221 and the transmission unit 222 of the present embodiment are in power transmission via gears, and the transmission unit are in power transmission via magnetic wheels.

The jacking mechanism 230 comprises a centering support assembly 231, a jacking unit 232 arranged on the centering support assembly, and a jacking driving module 233 for driving the centering support assembly and the jacking unit. The jacking mechanism 230 is disposed below the conveying assembly 220 and fixed on the frame base. The driving module 233 drives the whole mechanism to move along the Z direction, so that the battery piece is transmitted along the Z direction; the jacking units 232 are uniformly distributed on the mounting plate 2311 of the centering support component 231 and mainly comprise jacking upright posts 2321 and buffer pieces 2322 located at the tops of the jacking upright posts. Buffer sheet 2322 effect is mainly avoided jacking unit and thin-film solar wafer's among the jacking process hard contact, prevents that the battery piece from receiving the damage. The mounting height of the jacking units 232 in the Z direction is adjustable, so that the end parts of all the jacking units 232 can be adjusted to the same plane, and uneven stress in the jacking process of the battery piece is avoided. Furthermore, the number and distribution of the jacking units 232 are determined by the size of the battery plate.

The jacking driving module 233 is sequentially calibrated with three positions in the Z direction from bottom to top, namely a feeding avoiding position, a regulating position and a discharging position. When the battery piece is fed to the material feeding avoiding position, the upper end part of the jacking unit 232 is just below the transmission plane, so that the battery piece can be conveyed without obstacles; the regulation position is above the material loading avoiding position, and the lifting height of the battery piece is higher than the transmission plane but lower than the carrying mechanism. Under the action of the regulating mechanism, the cell slice is subjected to simple position correction. The battery piece is prevented from contacting the conveying mechanism due to position deflection. The discharging position is at the highest position, the height of the battery piece is just right flush with the height of the clamping jaw of the carrying mechanism when the clamping jaw is closed, the edge of the battery piece can be clamped just right when the clamping jaw is closed, and the battery piece cannot be obviously deformed.

In an embodiment of the present invention, the normalization mechanism 240 includes a first normalization assembly 241 and a second normalization assembly 242. The first regulating assembly 241 regulates the positions of the cells along the flow sheet direction, and mainly comprises a fixed regulating unit 2411 and a moving regulating unit 2412. The fixed regular unit 2411 is fixed on the mounting plate 2311; the movement regulating unit 2412 is connected with the jacking mechanism through a movement unit at the lower end. Under the driving of the moving unit, the moving regulating unit 2412 can reciprocate along the X direction and is matched with the fixed regulating unit 2411 which plays a role in limiting the position, so that the regulation of the flow direction of the cell sheets is realized. The moving unit can be a pneumatic cylinder or an electric cylinder. In other embodiments, the first normalization assembly may also be disposed on the left and right sides of the lifting mechanism by two sets of movement normalization units 2412. The second normalization assembly 242 normalizes the cell positions in a direction perpendicular to the flow sheet direction. Likewise, the second organizer can be configured in the same manner as the first organizer. Preferably, a mode of driving the regular units on two sides by a motor and a synchronous belt can be adopted. The structure of the lifting device comprises a driving assembly 2421 and regulating units 2422 which are arranged on the front side and the rear side of the lifting mechanism 230 and connected with the driving assembly through synchronous belts. The driving assembly 2421 comprises a motor, a driving synchronous pulley arranged on an output shaft of the motor, a synchronous belt and a driven synchronous pulley, wherein the shaft of the synchronous belt is parallel to a driving wheel shaft. The regularizing unit 2422 is connected with the jacking mechanism 230 through a linear guide rail at the lower end, and the regularizing unit 2422 can smoothly slide in the length range of the linear guide rail. The second is regular the mechanism and is passed through motor drive hold-in range, drives the regular unit relative motion of connection in hold-in range both sides, and then realizes along regular the battery piece position with the perpendicular direction of class piece direction. The battery cell positioning device has the advantages of high control precision, more accurate positioning, larger regular range and complete compatibility with battery cells of different sizes.

A fixed stop unit 211 is arranged on one side of the aluminum profile frame 210 along the X negative direction, and is mainly used for limiting the position of the cell on the feeding machine and facilitating subsequent regular positioning.

At the feeding end of the feeding mechanism, a sensor 212 is further provided for sensing the position of the battery piece, and the type of the sensor may be a photoelectric sensor or a mechanical contact sensor, preferably, a photoelectric sensor is selected here.

Referring to fig. 7-8, the conveying mechanism 400 includes two conveying linear driving modules 410 mounted on the rack 100 in parallel along the X-direction, and a material picking module 420 mounted on the linear driving mechanism. The power input ends of the two carrying linear driving modules 410 are connected by a synchronous transmission shaft 411, and the carrying motor 412 performs power transmission with the two carrying linear driving modules 410 through the synchronous transmission shaft 411. The linear drive unit can here also take the form of an electric cylinder module or a linear motor. The travel range of the linear driving module 410 covers three stations of the equipment, and the battery pieces can be conveyed to an upper material position, a processing position and a lower material position. The material taking module 420 mainly comprises a carrying frame 421 and a plurality of clamping jaw assemblies 422 installed in the carrying frame, and two ends of the material taking module are respectively connected with the rotors of the parallel linear driving mechanism 410. The clamping jaw assembly 422 is connected with the carrying frame 421 through a mounting plate, and the clamping jaw assembly 422 can be opened and closed at 180 degrees; the clamping jaw of the clamping jaw assembly is provided with a buffer sheet, so that the battery piece and a thin film coating on the battery piece are prevented from being damaged when the battery piece is clamped by the gas jaw.

According to the product processing flow, the carrying mechanism calibrates three stations, namely a material taking position, a material adding position and a material discharging position. During material loading, the carrying mechanism 400 reaches the material taking position in advance and the clamping jaw assembly 422 opens, and then the battery piece reaches the material discharging position under the conveying of the jacking mechanism 230, namely the material taking position of the carrying mechanism. The battery piece is right in the middle of the carrying mechanism frame 421 at this time, and then the clamping jaw assembly 422 is closed to clamp the edge of the battery piece. The number of the clamping jaw units is determined according to the size of the battery piece, so that deformation caused by poor support of the battery piece due to too few arrangements is avoided.

The carrying mechanism carries the battery piece to the processing station for edge cleaning operation. In the operation process, the clamping jaw assembly 422 can open and close the clamping jaw in sequence according to the real-time position of the laser processing action point and the preset control node, so that the situation that the clamping jaw blocks laser to cause edge cleaning residue is avoided. After the edge cleaning is finished, the battery pieces are conveyed to a discharging position by the conveying mechanism 400, and discharging is finished under the cooperation of the discharging machine 600. The cell piece is once got by transport mechanism and is accomplished by pressing from both sides, and middle transportation and repeated mechanical alignment do not need, and furthest shortens the cell piece and receives the damage at the inside transmission path of equipment to reduce thin-film solar cell in the clear limit process.

Referring to fig. 9-10, the edge-cleaning mechanism 300 is disposed in the equipment processing area, and includes a base platform 310, an edge-cleaning linear driving module 320 mounted on the base platform 310 and capable of driving along the X-axis and the Y-axis, a laser processing assembly 330 disposed on the linear driving module 320, and an image unit 340 disposed at the hollow portion of the four corners of the base. The edge cleaning linear driving module 320 includes an X-axis parallel to the feeding direction and a Y-axis perpendicular to the feeding direction. The X-axis is stacked and erected on the Y-axis, and the laser processing assembly is arranged on the X-axis. The trimming linear driving module 320 may be a servo screw module or a linear motor module, and preferably, the linear motor module is selected for driving in this embodiment.

The edge cleaning linear driving module 320 can load the laser processing assembly 330 to move within the size range of the base, so that the movement range of the laser processing module can completely cover the breadth of the solar cell to be processed. Edge cleaning linear driving module 320 adopts this kind of perpendicular biax structure, not only can carry out edge cleaning along the battery piece edge and process, can also carry out the coating clearance processing of arbitrary route and arbitrary width in the scope of battery piece breadth, and control is more nimble.

The laser processing assembly 330 includes a laser 331, a micro-motion module base 332 disposed in the optical box, and a first reflecting mirror 333, a scanning galvanometer 334, and a focusing mirror 335 disposed on the micro-motion module base. A second reflecting mirror 336 is provided directly in front of the focusing mirror 335. In the embodiment of the present invention, the power selection range of the laser 331 is 200-1500W, the laser emitted from the laser sequentially enters the scanning galvanometer 334 and the focusing mirror 335 through the first reflecting mirror 333, and the light beam is focused by the focusing mirror 335 and then reflected by the second reflecting mirror 336, and is emitted along the direction perpendicular to the horizontal direction. By controlling the movement of the micromotion module base 332, the distance between the focusing mirror 335 and the second reflecting mirror 336 is adjusted, and the position of the laser processing focus relative to the battery piece can be adjusted.

In order to prevent the optical devices in the light box from being polluted and keep the sealing performance of the light box, a high-transmittance window piece 337 is arranged at the light outlet of the laser processing assembly. Besides, an air blowing device 338 is arranged beside the light outlet, the air outlet of the air blowing device is linear, and high-speed air flow is sprayed out from the air outlet to form a protective barrier for preventing dust from depositing on the high-transparency window sheet.

Four image units 340 are installed at the hollow-out portion of the base platform. The image unit 340 is fixed in the installation position, and the rectangle formed by the central connecting line of the image lens is exactly equal to the size of the battery piece. So that the four corners of the battery piece are just positioned at the center of the visual field range when the battery piece reaches the processing station. The relative position of the image unit can be finely adjusted by an adjusting base of the image unit. Before the edge cleaning processing action is executed, the image unit 340 is used for carrying out target grabbing alignment on four corners of the battery piece to obtain the coordinate position of the battery piece in the absolute coordinate system of the processing system, then the system carries out matching calculation according to the obtained accurate position of the battery piece, the relative position of a laser processing action point on the battery piece is controlled, and high-precision processing is further realized.

Furthermore, a backlight source is arranged near each corner of the battery piece, so that the battery piece can accurately image in the camera, and the target grabbing and positioning can be smoothly realized.

Furthermore, a wind knife assembly can be arranged at the end part of the lens of the image unit, a high-speed airflow barrier can be provided at a certain distance above the lens, and the influence of dust on the imaging quality caused by the deposition of the camera lens is avoided.

Referring to fig. 11, the dust collecting following mechanism 500 is mainly used for following the smoke dust generated in the edge cleaning process, and the movement of the dust collecting following mechanism is driven by a dust collecting linear module 510, wherein the Y-direction module is composed of two linear modules arranged in parallel, and the direction of the Y-direction module is perpendicular to the feeding direction; the X-axis is erected on the two linear modules of the Y-axis and is vertical to the Y-axis. The stroke range of the dust collection linear module 510 is determined according to the size of the battery piece, the breadth of the battery piece can be completely covered, and then the following of the dust collection port to the whole path of laser edge cleaning processing is realized. One end of the dust collecting component 520 is connected with dust collecting equipment through a pipeline, the other end is designed into a bell mouth shape, and a laser absorption layer is coated inside the bell mouth. The horn mouth type not only plays the gathering effect to the smoke and dust that produces in the processing following process, and its inner wall coating can also shelter from and absorb laser, prevents that laser from penetrating the inside propagation of equipment behind the battery piece.

Further, the dust collection following mechanism 500 is mounted on an aluminum profile (not shown) of the equipment housing above the carrying mechanism 400.

Further, in order to further make the dust collecting assembly 520 close to the laser processing action point to improve the dust collecting effect, a dust collecting driving module 530 capable of moving the dust collecting rod in the Z-axis direction is added at the connection position of the dust collecting assembly 520 and the X-axis, and the driving module may be an air cylinder or an electric cylinder, preferably, the air cylinder is adopted in the embodiment.

During the operation of clearing edge, system control collection dirt filtration equipment starts, and collection dirt sharp module 510 drives the collection dirt subassembly and follows according to the route and the speed that set up in advance in the battery piece top, in time extracts the harmful smoke and dust that the clear edge in-process produced.

In order to avoid repeated design, the overall structure of the discharging mechanism 600 is consistent with that of the feeding mechanism 200, and the main difference is that the discharging mechanism 600 cancels a regulating mechanism. The jacking mechanism of the blanking mechanism 600 is mainly calibrated with two positions, namely a material receiving position and a material discharging position, wherein the material receiving position is the position where the jacking mechanism extends out, and the corresponding material discharging position is the position where the jacking mechanism retracts to the position where the jacking unit is lower than the conveying plane. After the edge cleaning processing is finished, the conveying mechanism conveys the battery piece to a blanking area of the machine table, a jacking mechanism of the blanking mechanism extends out of a material receiving position, and the upper end part of a jacking unit just contacts with the lower surface of the battery piece. And then the carrying clamping jaws are loosened, and the battery piece is supported by the jacking mechanism. And then the jacking mechanism is contracted to a discharging position, and the battery piece is conveyed to the conveying plane of the blanking machine of the conveying channel. And finishing the blanking of the battery piece under the transmission of the transmission assembly.

In order to avoid abnormal sound generated by collision between the battery piece and the jacking unit after the clamping jaw is carried for discharging, the end part of the jacking unit can be provided with a buffer gasket. The gasket material can be selected from soft materials, such as silica gel, polyurethane, and the like.

Further, a sensor is also arranged on the transmission line of the blanking mechanism, the sensor can be a mechanical contact sensor or a photoelectric sensor, and preferably, a photoelectric sensor is adopted in the embodiment.

The complete processing flow of the high-precision full-automatic edge cleaning equipment is further explained as follows: the solar cell enters the feeding mechanism, is firstly sensed by a sensor on the feeding mechanism, the conveying mechanism is started, and the cell piece is conveyed forwards under the action of the conveying wheel. And then the battery piece is stopped by the stopping unit, and the conveying mechanism stops working. The feeding lifting mechanism jacks the battery piece to a feeding regulation position, and the X/Y direction regulation mechanism regulates the posture of the battery piece. And then the jacking mechanism continues to convey the battery piece to the discharging position. At this time, the conveying mechanism is waiting at the loading position of the machine. And the opened clamping jaw on the carrying mechanism is closed to clamp the edge of the battery piece. And then the regulating mechanism returns to a position to be regulated, returns to a feeding waiting position along with the jacking mechanism, and simultaneously the carrying mechanism conveys the battery piece to a machine edge cleaning processing position.

And at the edge cleaning processing station, the image system carries out target grabbing and positioning on four corners of the battery piece to obtain absolute coordinate values of the battery piece in a processing coordinate system. And then the system sequentially carries out precise edge cleaning processing on four sides of the solar cell according to the edge cleaning path and the edge cleaning width which are led in advance. Meanwhile, the dust collection following system drives the Z shaft to reach a dust collection position and follows the position above the laser processing action point in real time to carry out dust collection operation. After finishing processing, the battery piece is conveyed by the conveying mechanism to reach the discharging position of the machine table, the discharging jacking mechanism rises to the discharging position, and the jacking unit lifts the lower surface of the battery piece. And then the carrying clamping jaws are loosened, the battery piece returns to the discharging position along with the jacking mechanism, and the discharging is completed under the conveying of the conveying wheel.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly referring to the number of technical features being grined. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "connected" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected: either mechanically or electrically: the terms may be directly connected or indirectly connected through an intermediate member, or may be a communication between two elements.

The above description is only a preferred embodiment of the present invention, and should not be used to limit the present invention, it should be noted that, for those skilled in the art, without departing from the technical principle of the present invention, a plurality of improvements and modifications can be made, and these improvements and modifications should also be regarded as the protection scope of the present invention.

Claims (10)

1. The high-speed high-precision edge cleaning equipment for the thin-film solar cell is characterized by comprising a rack (100), a feeding machine (200), an edge cleaning machine (300), a carrying mechanism (400) and a blanking machine (600); frame (100) include base (110), set up a plurality of frame stand (120) that play supporting role on base (110) and along X direction and set up and connect first section bar roof beam (130) and second section bar roof beam (140) of frame stand (120) along the Y direction, the spatial zone who forms between base (110), frame stand (120), first section bar roof beam (130) and second section bar roof beam (140) is divided into three district along the negative direction of X axle in proper order, and material loading level, process area and unloading district promptly are used for arranging material loading machine (200), clear limit machine (300) and blanking machine (600) respectively, handling mechanism (400) erect on first section bar roof beam (130) that set up along the X direction.

2. The high-speed high-precision edge cleaning equipment for the thin-film solar cells according to claim 1, wherein the feeding machine (200) comprises an aluminum profile rack (210), a conveying assembly (220) arranged on the aluminum profile rack (210), a jacking mechanism (230) arranged below the conveying assembly (220) and fixed on the base (110), and a regulating mechanism (240) arranged on the jacking mechanism (230).

3. The high-speed high-precision edge cleaning equipment for the thin-film solar cells as claimed in claim 2, wherein the conveying assembly (220) comprises a driving unit (221), a transmission unit (222) and a conveying unit (223), and the driving unit (221) is in power transmission with the conveying unit (223) through the transmission unit (222); the driving unit (221) is arranged at the middle position of one side of the aluminum profile rack (210) along the positive Y direction, the transmission unit (222) is arranged along the X direction, the driving unit (221) is located at the middle position of the transmission unit (222), a plurality of conveying units (223) are uniformly arranged on the aluminum profile rack (210) along the X direction, and the conveying units (223) are arranged along the Y direction; the driving unit (221) comprises a feeding motor (2211), a speed reducer (2212) and a first transmission wheel (2213) arranged on an output shaft of the speed reducer; the transmission unit (222) consists of a transmission shaft (2221) and a plurality of second transmission wheels (2222) arranged on the transmission shaft (2221), wherein the transmission shaft (2221) is parallel to the flow sheet direction; the conveying unit (223) is composed of a conveying shaft (2231) which is perpendicular to the flow sheet direction, a third driving wheel (2233) which is arranged at the end part of the conveying shaft (2231), a plurality of conveying wheels (2232) which are arranged on the conveying shaft (2231) and a plurality of bearings (2234) which support the conveying shaft (2231).

4. The high-speed high-precision edge cleaning equipment for the thin film solar cell according to claim 2, wherein the jacking mechanism (230) comprises a centering support assembly (231), a jacking unit (232) arranged on the centering support assembly (231), and a jacking driving module (233) for driving the centering support assembly (231) and the jacking unit (232) to move along the Z-axis direction, the jacking units (232) are uniformly distributed on a mounting plate (2311) of the centering support assembly (231), and each jacking unit (232) comprises a jacking upright column (2321) and a buffer sheet (2322) positioned at the top of the jacking upright column (2321).

5. The high-speed high-precision edge deletion device for thin-film solar cells according to claim 2, wherein the regularizing mechanism (240) comprises a first regularizing assembly (241) and a second regularizing assembly (242); the first regulating assembly (241) regulates the positions of the battery pieces along the flow sheet direction, the first regulating assembly (241) comprises a fixed regulating unit (2411) and a moving regulating unit (2412), the fixed regulating unit (2411) is fixed on a mounting plate (2311), the moving regulating unit (2412) is connected with a jacking mechanism (230) through a moving unit at the lower end, the moving regulating unit (2412) can reciprocate along the X direction under the driving of the moving unit, and the regulation of the flow sheet direction of the battery pieces is realized by matching with the fixed regulating unit (2411) which plays a role in position limitation; the second regulating assembly comprises regulating driving assemblies (2421) and regulating units (2422) which are arranged on two sides of the jacking mechanism (230) along the X direction and connected with the regulating driving assemblies (2421) through synchronous belts, the regulating units (2422) are connected with the jacking mechanism (230) through linear guide rails at the lower ends, and the regulating units (2422) can freely move on the linear guide rails along the Y direction.

6. The high-speed high-precision edge cleaning equipment for the thin-film solar cells as claimed in claim 2, wherein a fixed stopping unit (211) is arranged on one side of the aluminum profile frame (210) along the X negative direction, and a sensor (212) is further arranged on one side of the aluminum profile frame (210) along the X positive direction.

7. The high-speed high-precision edge trimming device for the thin film solar cells according to claim 1, wherein the carrying mechanism (400) comprises two carrying linear driving modules (410) arranged along the X direction, and a material taking module (420) erected on the carrying linear driving modules (410), power input ends of the two carrying linear driving modules (410) are connected with a synchronous transmission shaft (411), a carrying motor (412) performs power transmission with the two carrying linear driving modules (410) through the synchronous transmission shaft (411), the material taking module (420) comprises a carrying frame (421) and a plurality of clamping jaw assemblies (422) installed in the carrying frame (421), and two sides of the material taking module (420) along the X direction are respectively connected with a rotor of the carrying linear driving module (410).

8. The high-speed and high-precision edge cleaning equipment for the thin film solar cells according to claim 1, wherein the edge cleaning machine (300) comprises a base platform (310), an edge cleaning linear driving module (320) which is arranged on the base platform (310) and can drive along an X axis and a Y axis, a laser processing assembly (330) arranged on the edge cleaning linear driving module (320), and an image unit (340) arranged at the hollow positions of four corners of the base platform; laser processing subassembly (330) includes laser instrument (331), sets up fine motion module base (332) in the optical box to and set up first speculum (333), the scanning mirror (334) that shakes and focus mirror (335) on fine motion module base (332) focus mirror (335) and be provided with second mirror (336) along one side in Y axle positive direction, the laser that laser instrument (331) sent gets into in proper order behind first speculum (333) and scans mirror (334) and focus mirror (335), and the light beam is reflected through second mirror (336) again after focus mirror (335) focus, jets out along the perpendicular to horizontal direction.

9. The high-speed high-precision edge cleaning equipment for the thin-film solar cells according to claim 8, wherein a high-transmission window sheet (337) is arranged at a light outlet of a light box of the laser processing assembly (330), and a blowing device (338) is arranged on one side of the high-transmission window sheet (337).

10. The high-speed high-precision edge cleaning equipment for the thin film solar cells according to claim 1, further comprising a dust collection following mechanism (500), wherein the dust collection following mechanism (500) is arranged on an aluminum profile of an equipment housing above the carrying mechanism (400), the dust collection following mechanism (500) comprises a dust collection linear module (510) capable of being driven along an X axis and a Y axis, a driving end on the dust collection linear module (510) is connected with a dust collection driving module (530) capable of being driven along a Z axis, and a driving end on the dust collection driving module (530) is connected with the dust collection module (520).

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