A high-speed photovoltaic module production equipment and process method thereof

Abstract

The present invention discloses a high-speed photovoltaic module production equipment and a process method thereof, including: a cell feeding mechanism, a cell splitting mechanism, a cell splitting transport mechanism, a cell photographing and transmitting mechanism, a cell stacking transport mechanism, and a cell curing mechanism. Through the above-mentioned method, the present invention provides a high-speed photovoltaic module production equipment and a process method thereof, which completes a series of operations such as cell incoming material, splitting, splitting, testing, stacking, curing, and unloading with a set of equipment, which can effectively improve production capacity, improve the accuracy of cell processing, and reduce the probability of producing defective products.

Description

Technical Field

[0001] The present invention relates to the field of photovoltaic module production equipment, and in particular to high-speed photovoltaic module production equipment and a process method thereof. Background Art

[0002] As an important component of solar power generation, the manufacturing technology of photovoltaic modules has not changed significantly for a long time. In particular, the string welding machines used to produce conventional string welding modules have always had defects such as low equipment production capacity and poor process stability. In particular, the recent emergence of half-cell and multi-busbar technologies has not only reduced the production capacity of photovoltaic module production equipment, but also put forward higher requirements on the process stability of the equipment. These defects have been hindering the large-scale promotion and application of photovoltaic modules.

[0003] In recent years, a shingled module technology has emerged on the market, which divides the entire large cell into several small cells, and then connects the positive and negative electrodes of the small cells into strings through conductive materials. However, this technology has the following major problems: after dividing the large cell into several small pieces, the production capacity of the equipment needs to be increased several times; after the division, the small cells will still have defects such as hidden cracks and edge collapse, which need to be detected using industrial cameras; due to the process characteristics of the cell, the edge of the cell has chamfers. In order to make the photovoltaic module beautiful and increase the light-receiving area of ​​the photovoltaic module, the small cells with chamfers need to be stacked separately into strings; this module technology requires different conductive materials on the last piece of the entire cell string, and the equipment needs to handle the small cell separately.

[0004] Since the shingling technology requires a very high stacking accuracy of ±0.1mm for small cells, the above-mentioned major problems cannot be solved by traditional manual methods and must be solved by fully automatic equipment. However, the existing equipment on the market cannot solve all the above-mentioned problems. Summary of the invention

[0005] The main technical problem solved by the present invention is to provide a high-speed photovoltaic module production equipment and a process method thereof, which has the advantages of high reliability, precise positioning, compact structure, etc., and has broad market prospects in the application and popularization of photovoltaic module production equipment.

[0006] In order to solve the above technical problems, a technical solution adopted by the present invention is:

[0007] Provided is a high-speed photovoltaic module production equipment, which includes: a cell feeding mechanism, a cell splitting mechanism, a cell separation and conveying mechanism, a cell photographing and conveying mechanism, a cell stacking and conveying mechanism, and a cell curing mechanism.

[0008] Cell feeding mechanism: used to straighten the cells and transfer them to the cell splitting mechanism;

[0009] Cell splitting mechanism: used to split a large cell into multiple small cells;

[0010] Battery cell splitting and transporting mechanism: used to transport the split small battery cells from the battery cell splitting mechanism to the battery cell photographing and transporting mechanism;

[0011] Battery cell photographing and transmission mechanism: used to classify, transmit and inspect small battery cells as required;

[0012] Cell stacking transport mechanism: used to transport small cells and stack each small cell individually on the cell curing mechanism;

[0013] Cell curing mechanism: used to heat the small cells to cure the conductive adhesive on the small cells, thereby connecting the small cells into a battery string.

[0014] In a preferred embodiment of the present invention, the battery cell feeding mechanism includes a battery cell feeding transmission line, a transport slide, a transport sliding frame, a transport connecting frame, a transport movable frame, and a transport suction cup. The transport sliding frame moves back and forth on the transport slide, the transport sliding frame is connected to the transport connecting frame, the transport connecting frame is provided with a transport movable frame that can move up and down, the transport suction cup for sucking the battery cell is provided on the bottom surface of the transport movable frame, and the battery cell feeding transmission line or the transport movable frame or the transport suction cup is connected to a battery cell correcting mechanism for adjusting the position and direction of the battery cell.

[0015] In a preferred embodiment of the present invention, the battery cell splitting mechanism includes a frame body, a rotating plate, a rotating mechanism, a moving mechanism, a cam guide plate, and a vacuum adsorption hole, the rotating mechanism includes a rotating cam plate, a rotating rod, and an eccentric adjustment ring, the rotating cam plate is arranged on the cam guide plate, the rotating cam plate is provided with a rotating curve guide groove, the upper end of the rotating rod is fixedly connected to the rotating plate, and the lower end of the rotating rod is connected to an eccentric adjustment ring and a cam follower that moves back and forth in the rotating curve guide groove, and the rotating plate is driven to rotate by the rotating rod, the moving mechanism includes a moving cam plate, a moving rod, a cam follower, and a guide wheel, the moving cam plate is arranged on the cam guide plate, the moving cam plate is provided with a moving curve guide groove, the upper end of the moving rod is movably connected to the rotating plate through the cam follower, and the lower end of the moving rod is connected to a guide wheel that moves back and forth in the moving curve guide groove, and the moving rod cooperates with the moving curve guide groove to drive the rotating plate to translate.

[0016] In a preferred embodiment of the present invention, the battery cell slice transport mechanism includes a transport Y-axis, a transport X-axis, a transport lifting suction cup, a first transport frame, and a second transport frame. The transport X-axis moves back and forth along the transport Y-axis. The first transport frame used to transport the edge small pieces and the second transport frame used to transport the middle small pieces move back and forth on the transport X-axis through a connecting frame. The first transport frame and the second transport frame are both provided with a transport lifting suction cup, and the transport lifting suction cup on each transport frame is independently controlled. The first transport frame is connected to a transport rotating device that drives itself to rotate or drives the transport lifting suction cup thereon to rotate.

[0017] In a preferred embodiment of the present invention, the cell photographing and transmission mechanism includes a conveyor line for conveying small cell slices after splitting and a photographing and detection device. The ends of the conveyor lines are provided with photographing and detection devices for photographing the small cell slices and detecting the positions and shapes of the small cell slices. The conveyor line includes one or more of a first intermediate conveyor line for conveying intermediate small slices with conventional conductive materials, a second intermediate conveyor line for conveying intermediate small slices without conductive materials or with different conductive materials, a transition conveyor line for conveying edge small slices, a first edge conveyor line for conveying edge small slices with conventional conductive materials, and a second edge conveyor line for conveying edge small slices without conductive materials or with different conductive materials.

[0018] In a preferred embodiment of the present invention, the cell photographing and conveying mechanism further comprises a transition conveying mechanism for classifying and conveying the edge small pieces on the transition conveying line to the first edge conveying line and the second edge conveying line.

[0019] In a preferred embodiment of the present invention, a folding mechanism for adjusting the spacing between small battery cells is provided on the transport rack or the transport lifting suction cup or the conveyor line.

[0020] In a preferred embodiment of the present invention, the battery cell stacking handling mechanism includes a stacking suction cup group and a stacking robot. The stacking suction cup group for realizing the individual stacking control of each small battery cell is connected to the stacking robot, and the stacking suction cup group 31 is driven by the stacking robot 32 to move back and forth.

[0021] In a preferred embodiment of the present invention, the battery cell curing mechanism includes a curing frame, a transmission belt, an adsorption device, and a heating unit. The adsorption device is arranged on the transmission belt and is used to fix the small battery cell on the transmission belt. The curing frame is provided with a heat preservation cover. The heating unit may include a heating device and a heating hole. The heating unit is arranged on a heating plate located in the curing frame and / or on the heat preservation cover. The transmission belt is connected to a tensioning device for adjusting the tension of the transmission belt. One end of the transmission belt is movably connected to the curing frame and the belt driving device through an active roller, and the other end of the transmission belt is connected to the curing frame or the tensioning device through a correction device.

[0022] A process method for high-speed photovoltaic module production equipment, the steps comprising:

[0023] (1) Feeding: (1.1) Feed the battery cell to the conveyor belt, which transports the battery cell to the specified position; (1.2) Align the battery cell and suck up the battery cell; (1.2.1) When a clamping alignment unit is used, adjust the alignment wheel position according to the size of the battery cell in advance, and use the alignment wheel to align the battery cell; the transport slide frame adjusts its own position so that the transport movable frame is aligned with the center position of the battery cell, the transport movable frame is pressed down, the vacuum device is started, the transport suction cup absorbs the battery cell, and the transport movable frame is lifted up to make the battery cell leave the conveyor belt; (1.2.2) When an electronic detection alignment unit is used, obtain the image of the battery cell at the specified position and use the image detection device to analyze the image to obtain the current position information of the battery cell; based on Determine whether the position of the battery cell is correct based on the preset battery cell correction position information and the current position information; if the current position of the battery cell is incorrect, calculate the correction information when the battery cell is adjusted from the current position to the correct position; the battery cell transport mechanism adjusts the direction angle of the transport movable frame through the correction rotation axis according to the current position information, so that the transport movable frame is aligned with the center position of the battery cell; the transport movable frame is pressed down, and the vacuum device is started to make the suction cup absorb the battery cell; the transport movable frame is lifted up to make the battery cell leave the conveyor belt; the battery cell transport mechanism adjusts the direction angle of the transport movable frame according to the correction information, so that the transport movable frame and the battery cell are corrected to the correct position; (1.3) the transport sliding frame slides on the transport slide to send the corrected battery cell to the battery cell splitting mechanism;

[0024] (2) Splitting: The vacuum adsorption holes adsorb and fix the battery cells on the rotating plate; the cam guide plate drives the rotating cam plate and the movable cam plate to move upward, and the rotating curved guide groove and the translational curved guide groove respectively drive the rotating rod and the movable rod to perform splitting action; after the splitting is completed, the cam plate continues to move upward, the rotating rod adjusts the split rotating plate to a horizontal state at the same time, and the movable rod adjusts the rotating plate to the required spacing;

[0025] (3) Slice handling: (3.1) After the cell splitting mechanism completes the splitting, the handling X-axis moves along the handling Y-axis to the material picking position, the first handling frame and the second handling frame move inwards to combine, the first handling suction cup absorbs the edge small piece, and the second handling suction cup absorbs the middle small piece; (3.2) The handling X-axis moves along the handling Y-axis to transport the small cell to the loading position of the cell photographing and conveying mechanism; the handling methods include: (a) regardless of the structure of the small cell, directly transport the small cell to the loading position of the cell photographing and conveying mechanism; (b) when the structures of the edge small piece and the middle small piece are the same, directly transport the small cell to the loading position of the cell photographing and conveying mechanism, and when the structures of the edge small piece and the middle small piece are different, the position of the small cell is adjusted; (c) regardless of the structure of the small cell, the position of the small cell is adjusted; (3.3) The position adjustment method includes :(3.3.1) When a driving device is connected to the transport rack, at any stage of transport, the first transport driving device and the second transport driving device respectively drive the first transport rack and the second transport rack to move outward and apart; (3.3.2) When a transport rotating device is provided on the cell slice transport mechanism, if the structure of the edge small piece is the same as that of the middle small piece, there is no need to start the transport rotating device; if the structure of the edge small piece is different from that of the middle small piece, the small cell is directly driven to rotate or after the transport rack is separated, the transport rotating device is used to drive the first transport rack or the first transport suction cup to rotate, thereby driving the edge small piece to rotate, so that the directions of the two edge small pieces are consistent; (3.3.3) When a small cell retracting mechanism is provided on the cell slice transport mechanism, after the small cell is separated and / or rotated, the small cell retracting mechanism drives the transport rack or the transport suction cup to translate, so that the small cell pieces are close to each other;

[0026] (4) Classification and detection: (4.1) The conveyor line classifies and receives the small battery cells sent by the slice handling mechanism; (4.1.1) When the structure of the edge small piece is the same as that of the middle small piece, the first middle conveyor line receives the small battery cells with conventional conductive materials, and the second middle conveyor line receives the small battery cells without conductive materials or with different conductive materials; (4.1.2) When the structure of the edge small piece is different from that of the middle small piece, the first middle conveyor line receives the middle small piece with conventional conductive materials, the second middle conveyor line receives the middle small piece without conductive materials or with different conductive materials, the transition conveyor line receives the edge small piece, and then the transition handling mechanism transfers the edge small piece with conventional conductive materials to the transition conveyor line according to the conductive material information of each edge small piece. (4.2) Determine whether the small battery cells on the conveyor line are folded together. If they are not folded together, the material-prying claws retract inwards to bring the small battery cells closer together to complete the folding. (4.3) The conveyor line conveys the small battery cells to the inspection position at the end, uses the camera platform to obtain the image of the small battery cells, and transmits the image to the image detection device. The image detection device obtains the position information of the small battery cells based on the image and determines whether the small battery cells are qualified. If they are unqualified, the defective small battery cell information is displayed and a reminder is given. If they are qualified, the position information of the small battery cells is sent to the battery cell stacking and handling mechanism.

[0027] (5) Stacking: The battery cell stacking transport mechanism receives the position information and stacking information of the small battery cells, and drives the stacking manipulator and the stacking suction cup group to move and rotate, so that the stacking suction cup group on the first manipulator is aligned with the small battery cells on the conveyor line; the stacking manipulator drives the stacking suction cup group to descend and absorb the corresponding small battery cells, and then brings the small battery cells to the loading position of the battery cell curing mechanism; the stacking suction cup stacks the corresponding small battery cells one by one on the curing mechanism in sequence according to the stacking information, wherein the stacking information includes the number of small battery cells in each stacking group, the conductive material information of each small battery cell, and the stacking arrangement of the small battery cells;

[0028] (6) Curing: The adsorption device fixes the stacked small battery cell group on the conveyor belt, and the conveyor belt transports the small battery cell group to the heating position; the heating unit heats the small battery cells to solidify the conductive material on the small battery cells and connect the small battery cells into a battery string; the conveyor belt transports the battery string to the unloading position.

[0029] The beneficial effect of the present invention is that a series of operations such as battery cell incoming material, cracking, slicing, testing, stacking, curing, and unloading can be completed with a set of equipment, which can effectively improve production capacity, improve the accuracy of battery cell processing, and reduce the probability of producing defective products. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative work, among which:

[0031] Figure 1 It is a schematic diagram of the overall structure of a preferred embodiment of a high-speed photovoltaic module production device of the present invention;

[0032] Figure 2 It is a structural schematic diagram of a specific embodiment 1 of the battery cell feeding mechanism of the present invention;

[0033] Figure 3 2 is a schematic diagram of the first axial structure of a specific embodiment 10 of the cell splitting mechanism of the present invention;

[0034] Figure 4 It is a schematic diagram of the second axial side structure of the specific embodiment 10 of the battery cell splitting mechanism of the present invention;

[0035] Figure 5 It is a structural schematic diagram of a specific embodiment 3 of the battery cell separation and transportation mechanism of the present invention;

[0036] Figure 6 It is a structural schematic diagram of a specific embodiment 6 of the battery cell photographing and transmission mechanism of the present invention;

[0037] Figure 7 It is a structural schematic diagram of a preferred embodiment of the battery cell stacking conveying mechanism of the present invention;

[0038] Figure 8 It is a structural schematic diagram of a preferred embodiment of the battery cell curing mechanism of the present invention. DETAILED DESCRIPTION

[0039] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0040] See also Figure 1-8 , the embodiment of the present invention includes:

[0041] A high-speed photovoltaic module production equipment, which comprises in sequence: a cell feeding mechanism 1, a cell splitting mechanism 2, a cell separation and conveying mechanism 3, a cell photographing and conveying mechanism 4, a cell stacking and conveying mechanism 5, a cell curing mechanism 6, and a cell string unloading mechanism 7.

[0042] (1) Cell feeding mechanism 1

[0043] The battery cell feeding mechanism 1 is used to regulate the battery cells and transfer the battery cells to the battery cell splitting mechanism. The battery cell feeding mechanism 1 can be set as one group or multiple groups. When multiple groups are set, it can be set as a parallel mechanism for multiple groups to feed simultaneously, or it can be set as a serial mechanism for front and back feeding. The user can achieve different combination functions by increasing, reducing or removing the number of sub-mechanisms in the battery cell feeding mechanism 1 to meet different usage requirements.

[0044] The structure of the battery cell feeding mechanism 1 includes a battery cell correcting mechanism 9 and a moving mechanism for transporting the battery cells to the splitting mechanism, wherein the above-mentioned moving mechanism includes one or more of a battery cell feeding transmission line 8 and a battery cell transporting mechanism 10, and the battery cell correcting mechanism 9 can adopt a mechanical clamping correcting unit or an electronic detection correcting unit.

[0045] The two or more battery cell feed transmission lines 8 can be arranged in series in front and back, or in parallel in left and right, for transmitting two or more battery cells 11 from the front-end equipment to improve work efficiency and production capacity. The battery cell feed transmission line 8 includes a conveyor belt for placing and transmitting battery cells, and a conveyor belt driving device for driving the conveyor belt to move on the feed frame, wherein the conveyor belt driving device can have a variety of different forms. In this embodiment, its structure includes but is not limited to a motor, a reducer, and a transmission roller. The conveyor belt is arranged on the transmission roller, and the motor directly drives the transmission roller to rotate through the reducer, and can also drive the transmission roller through a synchronous wheel, a synchronous belt and other mechanisms.

[0046] The cell transport mechanism 10 is used to transport the cell 11 to the cell splitting mechanism 2. The cell transport mechanism 10 can transport one cell at a time or multiple cells at the same time. The cell transport mechanism 10 can be set in the form of a reciprocating module, and its structure includes a transport slide 101, a transport slide frame 102, a transport connecting frame 103, a transport movable frame 104, and a suction cup 105. The translation drive device drives the transport slide frame to move back and forth on the transport slide. The transport slide frame is connected to the transport connecting frame. The transport connecting frame is provided with a lifting drive device (such as a cylinder, etc.) that drives the transport movable frame to move up and down. The suction cup for sucking the cell is set on the bottom surface of the transport movable frame. The suction cup is connected to a vacuum generator or a vacuum pump and other devices for obtaining and maintaining vacuum. Specific embodiment 1

[0048] The cell feeding mechanism 1 comprises cell feeding transmission lines 8 , and each cell feeding transmission line 8 is provided with a corresponding mechanical clamping and alignment unit for aligning and positioning the cell 11 on the cell feeding transmission line.

[0049] The clamping and correcting unit includes a correcting wheel 90, a wheel frame 91, and a correcting movable frame 92. A plurality of the correcting wheels are arranged on the wheel frame, and the wheel frame is arranged on both sides of the battery cell feeding transmission line. The correcting movable frame can be driven to move back and forth on the feeding frame by manual or second correcting driving device; the wheel frame is movably arranged on the correcting movable frame, and the wheel frame can be driven to move back and forth on the correcting movable frame by the first correcting driving device, or the position of the wheel frame on the correcting movable frame can be adjusted manually, so that the wheel frame is close to or away from the battery cell feeding transmission line, wherein the two driving devices can use cylinders or motors as power sources, and in addition, a movable groove is arranged on the correcting movable frame, and the bottom of the wheel frame is movably arranged in the movable groove, which improves the adjustment efficiency and the accuracy of the correcting; in order to further improve the accuracy of the adjustment and correcting, the correcting movable frame and the wheel frame can move along the guide rail to prevent deviation during the movement.

[0050] When the battery cell transport mechanism 10 is used for transport: before starting work, the positions of the alignment wheels and the suction cups are adjusted according to the size of the battery cell to be processed; when the conveyor belt in the battery cell feeding transmission line delivers the battery cell to the clamping and alignment unit, the rotating and rolling alignment wheels on both sides of the battery cell can push the battery cell to change its angle and align the position of the battery cell; the aligned battery cell moves to the transport position, the transport slide frame adjusts its own position so that the transport movable frame is aligned with the center position of the battery cell, the transport movable frame is pressed down, the vacuum device is started, and the suction cups adsorb the battery cell; the transport movable frame is lifted up to separate the battery cell from the conveyor belt, the transport slide frame slides on the transport slide, and the aligned battery cell is delivered to the battery cell splitting mechanism 2.

[0051] When the battery cell feeding transmission line 8 is used directly for transportation: before starting work, adjust the position of the alignment wheel and the suction cup according to the size of the battery cell to be processed; when the conveyor belt in the battery cell feeding transmission line delivers the battery cell to the alignment unit, the rotating and rolling alignment wheels located on both sides of the battery cell can push the battery cell to change its angle and align the position of the battery cell; the conveyor belt delivers the aligned battery cell directly to the battery cell splitting mechanism 2. Specific embodiment 2

[0053] The cell feeding mechanism 1 includes a cell feeding transmission line 8 and a cell handling mechanism 10. An electronic detection type alignment unit is respectively provided on each cell feeding transmission line 8 and cell handling mechanism 10 for aligning and positioning the cell 11 on the cell feeding transmission line.

[0054] The electronic detection type alignment unit includes an alignment rotation axis, an alignment rotation drive device and a detection device for detecting the position of the battery cell and calculating correction information, wherein the alignment rotation drive device can use a cylinder or a motor as a power source; the detection device includes a sensor, a camera, an image detection device, etc., and the two ends of the alignment rotation axis are respectively connected to the transport movable frame and the alignment rotation drive device. The alignment rotation drive device drives the transport movable frame to rotate through the alignment rotation axis, so that the angle and position of the transport movable frame match the angle and position of the battery cell. When the suction cup sucks up the battery cell, the angle of the transport movable frame is adjusted to complete the alignment of the battery cell.

[0055] The conveyor belt in the battery cell feeding transmission line conveys the battery cells. When the sensor senses that the battery cell enters the specified position, the camera directly takes a picture of the battery cell, or first irradiates the battery cell with a laser, and then takes a picture of the battery cell with the camera; the image detection device analyzes the photo to obtain the current position information of the battery cell, and then determines whether the battery cell position is correct based on the preset battery cell correction position information and the current position information. If it is not correct, the correction parameter information for the battery cell to reach the correct position is calculated, and then the correction parameter information is sent to the battery cell conveying mechanism 10; the battery cell conveying mechanism 10 adjusts the direction angle of the conveying movable frame through the correction rotation axis according to the current position information, so that the conveying movable frame is aligned with the center position of the battery cell; the conveying movable frame is pressed down, and the vacuum device is started to make the suction cup absorb the battery cell; the conveying movable frame is lifted up to make the battery cell leave the conveyor belt; the battery cell conveying mechanism 10 obtains the correction parameter information and adjusts the direction angle of the conveying movable frame through the correction rotation axis, so that the conveying movable frame and the battery cell are corrected to the correct position; the conveying slide frame slides on the conveying slide to send the corrected battery cell to the battery cell splitting mechanism 2.

[0056] (2) Cell splitting mechanism 2

[0057] The cell splitting mechanism 2 is used to split a large cell 11 into a plurality of small cells 12 and adjust the spacing to a desired spacing, thereby simplifying the mechanism and improving the reliability and splitting efficiency of the device. When the cell is split into small cells, edge small cells 18 and middle small cells 19 are formed. The splitting mechanism 2 can be arranged in one or more groups to achieve splitting of one cell or multiple cells at the same time.

[0058] The cell splitting mechanism 2 includes a frame body 201 , a rotating plate 202 , a rotating mechanism, a moving mechanism, a cam guide plate 203 , vacuum adsorption holes 204 , and a waste collection box 205 .

[0059] One rotating plate corresponds to a small battery cell. A vacuum adsorption hole is provided on the rotating plate. A vacuum valve 206 and a vacuum pressure switch 207 are connected to the vacuum adsorption hole. A vacuum diversion plate 208 for fixing the diversion air pipe is provided on the frame body. When the battery cell feeding mechanism transports the large battery cell to the splitting mechanism, the vacuum adsorption hole adsorbs and fixes the large battery plate on the rotating plate, which is convenient for subsequent splitting and movement.

[0060] The rotating plate can also be affixed with a wear-resistant Teflon film. When the film is worn to a certain extent, it can be torn off and replaced with a new one to minimize the probability of cracks, edge collapse, degranulation and other splinter defects.

[0061] The rotating mechanism is used to drive the rotating plate to rotate, so that the rotating plate bends the large battery cell until the small battery cell is split out. The rotating mechanism can be set on one side of the rotating plate or on both sides of the rotating plate, which can apply force to the rotating plate more evenly and improve the splitting efficiency and quality.

[0062] The rotating mechanism includes a rotating cam plate 209, a rotating rod 210, and an eccentric adjustment ring 211. The rotating cam plate is arranged on the cam guide plate. The rotating cam plate is provided with a rotating curve guide groove 212. One rotating curve guide groove corresponds to one rotating rod. The upper end of the rotating rod is fixedly connected to the rotating plate, and the lower end of the rotating rod is connected to an eccentric adjustment ring and a cam follower. One end of the cam follower moves back and forth in the rotating curve guide groove, and the other end is movably arranged in the eccentric adjustment ring. During the movement, the eccentric adjustment ring can fine-tune the position angle of the cam follower to drive the rotating rod to move more smoothly and prevent the cam follower and the rotating rod from getting stuck.

[0063] The rotating curve guide groove contains at least two rotation intervals for changing the state of the rotating plate. When there are two rotation intervals, the rotating cam plate moves upward so that the cam follower encounters and enters the first rotation interval on the rotating curve guide groove, and the eccentric adjustment ring and the cam follower cooperate to drive the rotating plate to rotate through the rotating rod, thereby splitting the large battery cell into multiple small battery cells. When the rotating cam plate continues to move upward so that the cam follower encounters and enters the second rotation interval on the rotating curve guide groove, the eccentric adjustment ring and the cam follower cooperate to drive the rotating plate to rotate in the opposite direction through the rotating rod, thereby adjusting the rotating plate to a horizontal state.

[0064] The moving mechanism is used to drive the rotating plate to move forward and backward on the frame body, so as to adjust the distance between each rotating plate. The moving mechanism can be arranged on both sides of the rotating plate, and can synchronously drive the rotating plate to move horizontally.

[0065] The moving mechanism includes a moving cam plate 213, a moving rod 214, a cam follower 215, a guide wheel 216, a guide rail 217, and a connecting frame 218. The guide rail is arranged on the frame body, and the moving rod drives the connecting frame to move back and forth along the guide rail. The moving cam plate is arranged on the cam guide plate, and a moving curve guide groove 219 is arranged on the moving cam plate. One moving curve guide groove corresponds to one moving rod. The upper end of the moving rod is movably connected to the rotating plate through the cam follower, and the lower end of the moving rod is connected to a guide wheel that moves back and forth in the moving curve guide groove.

[0066] The moving curve guide groove contains at least two moving intervals for changing the position of the rotating plate. When there are two moving intervals, the moving cam plate moves upward to make the guide wheel encounter and enter the first moving interval on the moving curve guide groove, and the moving rod drives the rotating plate to move in a translational manner through the cam follower, so that the two adjacent rotating plates are separated to facilitate the splitting. When the moving cam plate continues to move upward to make the guide wheel encounter and enter the second moving interval on the moving curve guide groove, the moving rod adjusts the spacing between the rotating plates.

[0067] Each rotating plate is connected with a moving rod and a rotating rod. A rotating plate in the middle may not be connected with the moving rod and the rotating rod. In this case, the middle rotating plate may be arranged on the frame body through a fixing rod.

[0068] When processing battery cells with an odd structure, a corresponding odd number of rotating plates are required to form a group for splitting, and the rotating rod and the moving rod may not be connected to the rotating plate in the middle position, for example: when a 5-piece structure is adopted, the third rotating plate is the middle rotating plate; when processing battery cells with an even structure, a corresponding even number of rotating plates are required to form a group for splitting, and the rotating rod and the moving rod may not be connected to any one of the two rotating plates in the middle position, for example: when a 6-piece structure is adopted, any one of the third or fourth rotating plates can be used as the middle rotating plate.

[0069] The user may need to adjust the shape and direction of the rotating curved guide groove and the moving curved guide groove according to the structural dimensions of the product and the production capacity, processing accuracy, processing quality and other information of the equipment, and the rotating curved guide groove and the moving curved guide groove need to cooperate with each other.

[0070] If the shapes of the rotating / moving curved guide grooves are the same: a. the direction and height (i.e. the distance between the guide groove and the bottom surface of the cam plate) are also the same, then the rotating / moving cam plate can simultaneously drive all rotating plates to rotate / move in the same direction when it moves upward; b. when the directions are the same but the heights are different, the rotating / moving cam plate can sequentially drive the corresponding rotating / moving plates to rotate / move in the same direction in order from high to low; c. when the directions are different but the heights are the same, then the rotating / moving cam plate can simultaneously drive all rotating plates to rotate / move in the same or different directions when it moves upward, wherein a fixed middle rotating plate can be used as an intermediate axis, and the rotating / moving curved guide grooves on both sides of the intermediate axis are set in opposite directions.

[0071] If the shapes of the rotation / movement curve guide grooves are the same but the directions and heights are different or the shapes of the rotation / movement curve guide grooves are different, the rotation / movement activation order is determined according to the order in which the rotating rod or the moving rod encounters and enters the intervals, and then the rotation / translation operation of each rotating plate is controlled according to the corresponding curve guide groove shape and direction.

[0072] The waste collection box is movably arranged in the frame body and is located below the guide rail, and can collect debris and waste that may be generated during the splitting process.

[0073] The height of the rotating rod in the split device is guaranteed by the processing accuracy; the flatness of the multiple rotating plates can be precisely adjusted by the eccentric adjustment ring, and the lever structure of the rotating plate can greatly reduce the error caused by the cam groove processing, and the adjustment method is fast and convenient.

[0074] The split lifting drive device drives the cam guide plate to move up and down on the frame body, so that the cam guide plate can simultaneously drive the rotating cam plate and the movable cam plate to move up and down. The split lifting drive device can adopt a servo electric cylinder 220. The servo motor drives the electric cylinder to adjust the lifting speed of the electric cylinder according to the cam contour curve, and drives the cam curve. When encountering a turning point on the curve, the speed of the electric cylinder decreases, achieving a softer movement than the cylinder, causing less damage to the battery cell, and reducing splinter defects such as hidden cracks.

[0075] The cam guide plate, rotating cam plate and movable cam plate can be arranged on the outside of the frame body. When changing the specifications of the battery cells to be processed, fast and low-cost switching can be performed to meet the production needs of battery cells of different sizes. For example, when switching from battery cells with specifications of 1 / 5, 156.25 to battery cells with specifications of 1 / 5, 157.25, it is only necessary to replace the cam plate corresponding to the size of 156.25 with the cam plate corresponding to 157.25. In this way, the device can be converted to produce battery cells of size 157.25 to meet the production needs of battery cells of various specifications on the current market. Specific embodiment ten

[0077] The large battery cell that needs to be processed by the battery cell splitting mechanism contains 6 small battery cells. The moving rods are arranged on both sides of the rotating plate, the rotating rods are arranged on one side of the rotating plate, and the third rotating plate is the intermediate axis. The bottom of the connecting frame moves back and forth on the 3 guide rails, and the two sides of the connecting frame are connected to the moving rods.

[0078] The shapes and directions of the rotating curved guide grooves on the rotating cam plate are different, and the shapes and directions of the moving curved guide grooves on the moving cam plate are also different. The first section of the curved guide grooves on both sides of the shaft is close to the intermediate shaft, and the second section is far away from the intermediate shaft.

[0079] When the feeding mechanism places multiple battery cells on the splitting mechanism, the adsorption holes adsorb the battery cells onto the rotating plate; the servo electric cylinder drives the cam plate to move upward through the cam guide plate; the middle rotating plate remains stationary, and the outer rotating rod first encounters and enters the first rotating section of the rotating curve guide groove (at this time, the middle rotating rod and all moving rods have not entered the section), so that the outer rotating plates rotate in sequence to split; the cam plate continues to move upward, and the rotating rod continues to drive the rotating plate to rotate in sequence from the outside to the inside, and at the same time, the moving rod also enters the first moving section on the moving curve guide groove in sequence from the outside to the inside, driving the rotating plates that are rotating or have been rotated to translate one by one and move away from the middle axis, completing the splitting and separation of all small battery cells; the cam plate continues to move upward, and the rotating rod and the second rotating section are used to adjust the split rotating plates to a horizontal state at the same time, and the rotating plates are adjusted to the required spacing through the moving rod and the second moving section, without the need for subsequent mechanisms to perform spacing operations, thereby reducing the number of actions and improving production capacity.

[0080] (3) Cell separation and transport mechanism 3

[0081] The cell splitting and transporting mechanism 3 is used to transport the split small cells 12 from the cell splitting mechanism 2 to the cell photographing and transmitting mechanism 4. The cell splitting and transporting mechanism 3 can be set as one group or multiple groups to achieve higher equipment production capacity.

[0082] One, two or more battery cell separation and handling mechanisms can be used to load materials corresponding to the loading positions of multiple battery cell photographing and transmission mechanisms to improve production capacity; when producing full right-angle pieces (each small battery cell is the same), the entire piece can be directly transported to the required loading position of the battery cell photographing and transmission mechanism, or the small battery cell can be adjusted and transported to the loading position; when the structures of the edge small piece and the middle piece are different, the small battery cell can be adjusted in the battery cell separation and handling mechanism, or it can be adjusted in the battery cell photographing and transmission mechanism; the content of the position adjustment includes: separation of the edge small piece and the middle small piece; rotation of the edge small piece; retraction of the small battery cell, etc.

[0083] The cell sheet conveying mechanism 3 includes a conveying Y axis 13, a conveying X axis 14, and a conveying lifting suction cup.

[0084] 15. First transport rack, second transport rack. In order to meet different processing requirements and further improve work efficiency, a transport rotating device for adjusting the direction of edge small pieces and / or a folding mechanism for adjusting the spacing between small battery pieces can be added at any position of the battery piece separation and transport mechanism 3.

[0085] The transport Y axis 13 and the transport X axis 14 are perpendicular to each other, and the transport X axis 14 moves forward and backward along the transport Y axis 13 to realize the movement of the small battery sheet 12 in the X axis direction and the Y axis direction on the horizontal plane. The transport X axis 14 is equipped with a first transport drive device 16 and a second transport drive device 17. The first transport drive device 16 drives the first transport frame 24 to move back and forth on the transport X axis 14 through the first connecting frame 40, and the second transport drive device 16 drives the second transport frame 25 to move back and forth on the transport X axis 14 through the second connecting frame 41. The drive devices 16 and 17 can separate the edge small pieces 18 and the middle small pieces 19 that are arranged together after splitting, and can also realize the small battery sheets with conventional conductive materials (conductive glue) and the small battery sheets without conductive materials (conductive glue) or with different conductive materials (conductive glue) are transported to two different conveying lines and on the photographing transmission mechanism 4.

[0086] The first transport rack and the second transport rack are both provided with transport lifting suction cups 15. The transport lifting suction cups on each transport rack form a group, and the start and stop of each group of transport lifting suction cups are independent of each other, so that the state of each small battery cell can be accurately controlled. When the battery cell segmentation transport mechanism 3 is unloading, the small battery cells can be placed one by one on the conveying line of the battery cell photographing transmission mechanism 4, which is convenient for classifying and placing and transporting the small battery cells. The transport lifting suction cups 15 can be set as two groups: a first transport suction cup set on the first transport rack and a second transport suction cup set on the second transport rack. The two groups of suction cups correspond to the two driving devices (the first transport driving device 16 and the second transport driving device 17) on the transport X axis respectively. The first transport suction cup is used to suck the edge small piece 18 on the splitting mechanism, and the second transport suction cup is used to suck the middle small piece 19 on the splitting mechanism.

[0087] The cell segmentation and transporting mechanism can transport small cell sheets with conventional conductive materials, small cell sheets without conductive materials or small cell sheets with different conductive materials; the cell segmentation and transporting mechanism 3 can also be used to transport small cell sheets with conventional conductive materials to a photographing and transmitting mechanism, and the small cell sheets without conductive materials or with different conductive materials (including middle small sheets and / or edge small sheets) can be transported to the photographing and transmitting mechanism by a small cell feeding mechanism separately located near the photographing and transmitting mechanism; the cell segmentation and transporting mechanism 3 can also be used to transport small cell sheets without conductive materials or with different conductive materials, and a separately arranged small cell feeding mechanism can transport small cell sheets with conventional conductive materials to the photographing and transmitting mechanism. Specific embodiment three

[0089] The cell slice conveying mechanism 3 includes a conveying Y-axis 13, a conveying X-axis 14, a first conveying frame 24, a second conveying frame 25, a first conveying suction cup for sucking edge small pieces and a second conveying suction cup for sucking middle small pieces, and a conveying rotating device 26 for rotating the edge small pieces 18.

[0090] In actual production, the structures of the edge pieces and the middle pieces of some cells are different. For example, there may be chamfers on the edge pieces. In this case, the two edge pieces need to be arranged in the same direction to improve work efficiency and accuracy of post-processing. If the edge pieces do not have chamfers, the edge pieces and the middle pieces can be separately transported to the loading position of the cell photographing transmission mechanism 4.

[0091] When a plurality of first transport suction cups are provided on the first transport rack, at least one first transport rack is connected with a transport rotating device, which is provided on the first connecting rack. When the transport rotating device is started, it can adjust the direction of the edge piece by driving the first transport rack to rotate axially on the first connecting rack; when only one first transport suction cup is provided on the first transport rack, a transport rotating device that drives the first transport suction cup to rotate can also be directly provided on the first transport rack. The transport rotating device can use common rotary drive equipment such as a motor as a power source, and drive the first transport rack or the first transport suction cup to rotate through a connecting piece such as a rotating shaft.

[0092] After the cell splitting mechanism 2 completes the splitting, the transport X-axis moves along the transport Y-axis to the material picking position, the first transport frame and the second transport frame move inwardly to combine, and the first transport suction cup and the second transport suction cup absorb the edge small pieces and the middle small pieces; the transport X-axis moves along the transport Y-axis toward the cell photographing transmission mechanism 4; at the same time or at the end of the transport, the first transport drive device 16 and the second transport drive device 17 respectively drive the first transport frame and the second transport frame to move outward and separate; when the two transport frames are separated, the edge small pieces are rotated by the transport rotating device to make them in the same direction, and then the small cell is transported to the loading position of the cell photographing transmission mechanism 4. Specific embodiment 4

[0094] The cell slice conveying mechanism 3 includes a conveying Y axis 13 , a conveying X axis 14 , a first conveying frame, a second conveying frame, a first conveying suction cup for sucking edge small slices, a second conveying suction cup for sucking middle small slices, and a small cell slice folding mechanism 27 .

[0095] In this embodiment, the small battery sheet folding mechanism 27 includes a folding drive device (such as a cylinder, a motor or other driver). The folding drive device can be arranged on the first connecting frame and the second connecting frame, and directly or through a connecting shaft or other connecting parts indirectly drive the transport frame to move forward and backward along the connecting frame, thereby adjusting the spacing between the small battery sheets; the folding drive device can also be arranged on the first transport frame and the second transport frame, and directly or through a connecting shaft or other connecting parts indirectly drive the transport suction cup to move forward and backward on the transport frame, thereby adjusting the spacing between the small battery sheets.

[0096] In addition, in order to meet different processing requirements, the transport and rotation device in the specific embodiment three can be used on the first transport rack in this embodiment. There are many ways to combine the transport and rotation device and the small battery cell folding mechanism. The first transport rack and the first transport suction cup need to cooperate to complete the action of translating the small battery cell and rotating the edge small cell, that is, one of the first transport rack and the first transport suction cup needs to have the functions of translation and rotation at the same time, or the first transport rack has the translation / rotation function and the first transport suction cup has the rotation / translation function, and the second transport rack and the second transport suction cup only need to cooperate to complete the action of translating the small battery cell.

[0097] After the cell splitting mechanism 2 completes the splitting, the transport X-axis moves along the transport Y-axis to the material picking position, the first transport frame and the second transport frame move inwardly to combine, and the first transport suction cup and the second transport suction cup absorb the edge small pieces and the middle small pieces; the transport X-axis moves along the transport Y-axis toward the cell photographing transmission mechanism 4; while or at the end of the transport, the first transport drive device 16 and the second transport drive device 17 respectively drive the first transport frame and the second transport frame to move outward and separate; when the two transport frames are separated, the edge small pieces are rotated by the transport rotating device to make them in the same direction; the small cell folding mechanism is started to adjust the spacing between the small cell sheets so that the small cell sheets are close to each other; the folded small cell sheets are transported to the loading position of the cell photographing transmission mechanism 4.

[0098] (4) Battery cell photo transmission mechanism 4

[0099] The cell photographing and conveying mechanism 4 classifies and places different types of small cells and conveys them, and performs calculation and detection of the positions, defects, etc. of the small cells. The cell photographing and conveying mechanism 4 can be set as one or more groups, which can correspond to the edge small pieces 18 and the middle small pieces 19 of the cell splitting and conveying mechanism 3, respectively, so as to realize the separate transmission of the edge small pieces 18 and the middle small pieces 19 after the splitting is completed.

[0100] The large cell 11 provided by the front-end machine is split into small cells, some of which have conventional conductive materials, some have no conductive materials or have conductive materials different from the conventional conductive materials (hereinafter referred to as small cells with different conductive materials).

[0101] The cell information conveyed by each conveyor line in the cell photographing and conveying mechanism, the corresponding conductive material information on each small cell and the cell's own position information are all pre-set, bound and stored. When the cell segmentation and conveying mechanism 3 conveys the small cell to the loading position of the cell photographing and conveying mechanism 4, the cell segmentation and conveying mechanism 3 does not need to scan or detect the cell, and it can directly place the small cell on the corresponding conveyor line, thereby improving work efficiency.

[0102] The cell photographing and conveying mechanism 4 includes a conveying line for conveying small cells, a photographing platform and an image detection device. The end of each small cell transmission line is provided with a cell photographing platform 29 for photographing small cells. The image detection device is used to detect and calculate the cell position, detect cell defects, etc. A group of cell photographing platforms 29 can be provided at the end of each of the different small cell transmission lines, or only one group of cell photographing platforms 29 can be provided at the end of several small cell transmission lines; or only one group of cell photographing platforms 29 can be provided at the end of a group of cell transmission lines, and a cell transport mechanism can be added to transport the unphotographed small cells to the cell transmission line or / and to move the photographed small cells away from the cell transmission line.

[0103] When the cell sheet conveying mechanism 3 is not provided with a folding mechanism, the cell sheet conveying line head can be

[0104] A folding mechanism is provided in the part for folding the edge small pieces 18 or the middle small pieces 19 conveyed by the cell slice conveying mechanism 3 into a plurality of continuous small cell slices.

[0105] The gathering device includes a material-dispensing claw, an opening and closing driving device for driving the material-dispensing claw to clamp or loosen, and a lifting driving device for driving the material-dispensing claw to move up and down. When a group of small battery sheets that have not been gathered are placed on the conveyor line, the lifting driving device drives the material-dispensing claw to rise and pass through the conveyor line, and the material-dispensing claw is located at both ends of the group of small battery sheets. The opening and closing driving device is started and drives the material-dispensing claw to clamp in the middle to gather the group of small battery sheets. After the gathering is completed, the material-dispensing claw is loosened and descended.

[0106] A cell inspection mechanism may be provided between the cell separation and transport mechanism 3 and the cell photographing and transmission mechanism 4 to detect internal defects or appearance of the small cells 18 and 19 after the cells are split, so as to improve the yield rate of the small cells in the subsequent process. The cell inspection mechanism may not be installed. Specific embodiment five

[0108] When the structures of the edge small pieces and the middle small pieces are the same, the cell photographing and conveying mechanism 4 includes a photographing platform, an image detection device, a first intermediate transmission line 22 for conveying small cell pieces with conventional conductive materials, a second intermediate transmission line 23 for conveying small cell pieces without conductive materials or with different conductive materials, and a gathering device.

[0109] When the small battery cells are transported to the loading position of the battery cell photographing and conveying mechanism 4, the slice conveying mechanism classifies the small battery cells and places them on two conveying lines according to the conductive material information of each small battery cell, without distinguishing between the edge small cells and the middle small cells; the folding device is turned on to fold the small battery cells on each conveying line; the conveying line conveys the two types of small battery cells to the detection position at the end, and when the small battery cells enter the detection position, the photographing platform takes a photo of the small battery cells and transmits the photo to the image detection device, which analyzes the small battery cells in the image to detect and determine whether each small battery cell is qualified. If it is unqualified, the defective small battery cell information is displayed and a reminder is given to facilitate its removal. If it is qualified, the small battery cell is transported to the unloading position of the conveying line, the photographing platform takes a photo of the qualified small battery cell, the image detection device receives the photo and obtains the position information of the small battery cell, and sends the position information of the small battery cell to the battery cell stacking and conveying mechanism 5. Specific embodiment six

[0111] When the structures of the edge pieces and the middle pieces are different, the cell photographing and conveying mechanism 4 includes a photographing platform, an image detection device, a folding device, a first intermediate transmission line 22 for conveying the middle pieces 20 with conventional conductive materials, a second intermediate transmission line 23 for conveying the middle pieces 21 without conductive materials or with different conductive materials, a transition conveying line 42 for conveying the edge pieces, a first edge conveying line 43 for conveying the edge pieces 45 with conventional conductive materials, a second edge conveying line 44 for conveying the edge pieces 46 without conductive materials or with different conductive materials, and a transition conveying mechanism for classifying and conveying the edge pieces on the transition conveying line to the edge conveying line.

[0112] The gathering mechanism may be arranged on the first intermediate transmission line, the second intermediate transmission line, the first edge transmission line, and the second edge transmission line.

[0113] The transition transport mechanism includes a translation slide 47, a transition transport frame 48, and a vacuum suction cup 49 for adsorbing small edge pieces. The translation slide is arranged above the transition conveyor line, the first edge conveyor line, and the second edge conveyor line. The vacuum suction cup is arranged on the transition conveyor frame. The transition conveyor frame is connected to a lifting drive device that drives it to move up and down. The translation drive device drives the transition conveyor frame to move back and forth on the translation slide to transport the small edge pieces on the transition conveyor line to the edge conveyor line.

[0114] If the battery cell slicing and conveying mechanism 3 is not provided with a conveying and rotating device for adjusting the direction of the edge small pieces, the conveying and rotating device can be installed on a transition conveying rack or a vacuum suction cup. When the vacuum suction cup sucks up the edge small pieces, the conveying and rotating device can drive the transition conveying rack or the vacuum suction cup to rotate, thereby adjusting the direction of the edge small pieces; the conveying and rotating device can also be set at any position on the transition conveying line, the first edge conveying line, and the second edge conveying line to realize the rotation of one or more edge small pieces.

[0115] When the small battery cells are transported to the loading position of the battery cell photographing and conveying mechanism 4, the slice conveying mechanism transports the edge small pieces to the transition conveyor line, and classifies the intermediate small pieces and places them on the first intermediate transmission line and the second intermediate transmission line according to the conductive material information of each intermediate small piece; the transition conveying mechanism classifies the edge small pieces and places them on the first edge conveyor line and the second edge conveyor line according to the conductive material information of each edge small piece; the folding device is opened to fold the small battery cells on each conveyor line; the conveyor line transports the small battery cells to the detection position at the end, and when the small battery cells enter the detection position, the photographing platform takes a photo of the small battery cells and transmits the photo to the image detection device, which analyzes the small battery cells in the image to detect and determine whether each small battery cell is qualified. If it is unqualified, the defective small battery cell information is displayed and a reminder is given to facilitate its removal. If it is qualified, the image detection device receives the photo and calculates the position information of the small battery cell, and sends the position information of the small battery cell to the battery cell stacking and conveying mechanism 5.

[0116] (5) Cell stacking and transporting mechanism 5

[0117] The battery cell stacking conveying mechanism 5 conveys the small battery cells detected by the battery cell photographing and conveying mechanism 4 to the battery cell curing mechanism 6. If the small battery cells are to be combined and cured into a battery string, the battery cell stacking conveying mechanism is required to select and extract small battery cells with corresponding conductive material information according to production requirements, and stack the small battery cells one by one in sequence on the battery cell curing mechanism. For example, a battery string can be composed of small battery cells with conventional conductive materials and small battery cells without conductive materials or with different conductive materials. When stacking, the ends of the two adjacent upper and lower small battery cells overlap, and the conductive material is located in the overlapping position. When the conductive material is heated and cured, the small battery cells can be bonded and fixed.

[0118] The battery cell stacking transport mechanism 5 includes a plurality of stacking suction cup groups 31 and a stacking manipulator 32. The stacking suction cup group 31 can realize the independent start and stop and lifting movement of a plurality of stacking suction cups 33 to realize the individual stacking of each small battery cell. The stacking suction cup group 31 is driven to move back and forth by the stacking manipulator 32. The stacking manipulator 32 can receive the position information of the small battery cell sent from the battery cell photographing platform 29 to realize the automatic correction function when the battery cell is stacked, prevent the position deviation from occurring during the handling and stacking process, and improve the efficiency and accuracy of the handling and stacking.

[0119] The battery cell stacking transport mechanism 5 can be set to multiple groups to improve production capacity and efficiency. The number and position of the stacking suction cup group and the manipulator can also be adjusted according to the scale of the production line and production needs. If the structure of the middle small piece and the edge small piece is the same, a manipulator can be set correspondingly on the first intermediate transmission line and the second intermediate transmission line or a manipulator can be shared. If the structure of the middle small piece and the edge small piece is different, the two intermediate transmission lines can share a manipulator, and the two edge transmission lines can share a manipulator to improve production capacity and reduce costs.

[0120] The stacking manipulator can directly drive the stacking suction cup group to absorb the small battery cells on the corresponding conveyor line, and then stack the corresponding small battery cells on the curing mechanism according to the stacking information. The battery stacking handling mechanism 5 can also go to the conveyor line to absorb the required small battery cells according to the received stacking information, and then stack the small battery cells on the curing mechanism, wherein the stacking information includes the number of small battery cells in each stacking group, the conductive material information of each small battery cell, the stacking arrangement of the small battery cells, etc. When the manipulator can start to return after absorbing the small battery cells, the driving device can be used to drive the stacking suction cup group to descend while returning. When returning to the curing loading position, the manipulator descends again to place the small battery cells on the curing mechanism, which can improve the handling efficiency.

[0121] When the stacking robot absorbs the small battery cells, it can absorb multiple small battery cells at the same time, and the stacking suction cup group can adjust the position and angle of the small battery cells, and then place the small battery cells on the curing mechanism one by one; or when the stacking robot absorbs the small battery cells, it can absorb the small battery cells one by one, adjust the small battery cell after absorbing one, and then absorb the next one, so that the stacking adjustment operation of the small battery cells can be completed before transportation, and finally all the arranged small battery cells can be placed on the curing mechanism at one time. Specific embodiment seven

[0123] The battery cell stacking transport mechanism 5 includes N stacking suction cup groups 31 and a stacking robot 32. The small battery cells in the battery string have the same structure. The stacking information includes: each battery string has a total of M small battery cells, of which one at the head and one at the tail are without glue.

[0124] When stacking, the battery cell stacking transport mechanism 5 receives the position information and stacking information of the small battery cells, and a manipulator drives a stacking suction cup group 31 to absorb a battery cell without glue on the second intermediate transmission line and N-1 battery cells with glue on the first intermediate transmission line; first stack the first battery cell without glue, and then stack the small battery cells with glue one by one on the battery cell curing mechanism in turn; the curing mechanism moves the stacked small string forward by the displacement corresponding to N small cells, and the battery cell stacking transport mechanism 5 then absorbs N small battery cells from the glue conveyor belt and stacks them on this string. When the total number of stacked cells is M-1, absorb a battery cell without glue from the second intermediate transmission line and stack it on the stacked battery string; after stacking the first string, repeat this process to stack each string. Specific embodiment eight

[0126] The battery cell stacking transport mechanism 5 includes a stacking suction cup group 31 and a stacking manipulator 32. The small battery cells in the battery string have the same structure. The first manipulator is used to suck the small battery cells on the first intermediate conveyor line, and the second manipulator is used to suck the small battery cells on the second intermediate conveyor line. The stacking information includes: each battery string requires 4 small battery cells, 2 of which are small battery cells with conventional conductive materials, and 2 are small battery cells without conductive materials. The small battery cells with conventional conductive materials and the small battery cells without conductive materials are stacked in a one-to-one ratio.

[0127] The battery cell stacking transport mechanism 5 receives the position information and stacking information of the small battery cells, drives the stacking manipulator and the stacking suction cup group to move and rotate, so that the stacking suction cup group on the first manipulator is aligned with the small battery cells on the first intermediate conveyor line, and the stacking suction cup group on the second manipulator is aligned with the small battery cells on the second intermediate conveyor line; the two stacking manipulators drive the stacking suction cup groups to descend and absorb the corresponding small battery cells respectively; the two stacking manipulators bring the small battery cells to the loading position of the battery cell curing mechanism 6 through the stacking suction cup groups; the first manipulator and the second manipulator stack the two types of small battery cells on the curing mechanism in sequence according to the stacking information. Specific embodiment nine

[0129] The battery cell stacking transport mechanism includes a stacking suction cup group and a stacking robot. The structures of the small battery cells in the battery string are different. The first robot is used to suck the small battery cells on the first middle conveyor line and the second middle conveyor line, and the second robot is used to suck the small battery cells on the first edge conveyor line and the first edge conveyor line. The stacking information includes: each battery string requires 4 small battery cells, of which 2 are middle small cells with conventional conductive materials and 2 are edge small cells without conductive materials. The battery string needs to be stacked in the manner of 1 edge small cell, 2 middle small cells and 1 edge small cell.

[0130] The battery cell stacking transport mechanism receives the position information and stacking information of the small battery cells, drives the stacking manipulator and the stacking suction cup group to move and rotate, so that the stacking suction cup group on the first manipulator is aligned with the middle small piece on the first middle conveyor line, and the stacking suction cup group on the second manipulator is aligned with the edge small piece on the second edge conveyor line; the two stacking manipulators drive the stacking suction cup groups to descend and respectively absorb the corresponding small battery cells; the second manipulator first releases an edge small piece on the curing mechanism, and then the first manipulator stacks the two middle small pieces on the first edge small piece in turn, and finally the second manipulator first rotates the second edge small piece 180°, and then stacks the edge small piece on the middle small piece.

[0131] (6) Cell curing mechanism 6

[0132] The cell curing mechanism 6 corresponds one-to-one to the cell stacking handling mechanism 5. When there are three groups of curing mechanisms and the edge small pieces and the middle small pieces are distinguished, the curing mechanism and the handling mechanism on both sides are mirror-set with the curing mechanism in the middle and the manipulator for handling the edge small pieces as the axis, that is, the three curing mechanisms share a group of edge conveying lines, and a group of edge conveying lines can include a transition conveying line, a first edge conveying line, a second edge conveying line and a transition handling mechanism.

[0133] The cell curing mechanism 6 includes a curing frame, a transmission belt 34, an adsorption device, and a heating unit 35. The transmission belt 34 arranged on the curing frame is used to drive the stacked small cell group 28 to be transported forward. The adsorption device is arranged on the transmission belt. The adsorption device fixes the stacked small cell group 28 on the transmission belt 34 to prevent the small cell group 28 from moving during the transmission process. The adsorption device may include adsorption holes and a vacuum suction device. The heating unit heats the small cell group 28 to cure the conductive material on the small cell group 28 and connect the small cells into a battery string 37.

[0134] In order to further increase the temperature and efficiency during curing and reduce heat loss, a heat-insulating cover 36 may be provided on the curing frame.

[0135] The heating unit may include a heating device and a heating hole. The heating device may be arranged on a heating plate located in the curing frame, or on a heat preservation cover located on the curing frame, or on both the heating plate and the heat preservation cover (the heating device may be arranged on the inner wall or interlayer of the heat preservation cover). In order to evenly dissipate heat and improve the curing quality and efficiency, heating holes may also be arranged on the heating plate and / or the heat preservation cover.

[0136] The transmission belt is also connected to a tensioning device, which includes a tensioning cylinder, a tensioning slide rail, and a tensioning frame. The curing frame is provided with a tensioning frame, and the tensioning cylinder drives the tensioning frame to move back and forth on the tensioning slide rail, thereby adjusting the tension of the transmission belt.

[0137] One end of the transmission belt can be movably connected to the curing frame and the belt driving device through an active roller, or can be directly connected to the tensioning device. The other end of the transmission belt is arranged on the curing frame / tensioning frame through an upper driven roller and a lower driven roller. One end of the two driven rollers is movably connected to the curing frame / tensioning frame through a rotating shaft, and the other end is movably connected to the curing frame / tensioning frame through a correction device. The positions of the rotating shafts and the correction devices on the two driven rollers are staggered to improve the correction accuracy. The correction device includes an adjustment bolt and a fixed block. The fixed block is arranged on the curing frame / tensioning frame. One end of the adjustment bolt is threadedly connected to the driven roller, and the other end is threadedly connected to the fixed block. The position of the driven roller can be adjusted by the adjustment bolt to achieve the effect of adjusting the correction effect. The other end of the transmission belt can also be directly connected to one or more driven rollers without passing through a correction mechanism.

[0138] (7) Battery string unloading mechanism 7

[0139] The battery string unloading mechanism 7 is used to collect the battery strings 37 after curing or transport them to the transmission line of the back-end machine. The battery string unloading mechanism 7 can be deleted or added according to actual usage requirements, and the battery string unloading mechanism 7 can adopt an unloading conveyor belt or an unloading storage table.

[0140] The beneficial effects of the high-speed photovoltaic module production equipment and process method of the present invention are:

[0141] 1. The battery cell feeding mechanism and the battery cell splitting mechanism are divided into two groups of mechanisms, so that multiple large battery cells can be processed at the same time, which significantly improves the production capacity of the equipment;

[0142] 2. The cell separation and conveying mechanism can separate the middle small pieces and the edge small pieces after the splitting, and place them on different cell photographing and conveying mechanisms respectively. It can also separate and place small cells with conventional conductive materials and small cells without conductive materials or with different conductive materials at the same time during the conveying process, thus reducing the number of cell conveying times and helping to reduce the probability of fragments and defects;

[0143] 3. The battery cell curing mechanism can have multiple groups in parallel, and correspond one to one with the battery cell stacking and handling mechanism, which can significantly improve the equipment production capacity;

[0144] 4. The high-speed photovoltaic module production equipment is arranged according to the process flow of incoming materials, splitting, slicing, testing, lamination, curing, and unloading, which improves the production capacity and processing accuracy of the entire processing flow.

[0145] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A photovoltaic module production equipment, characterized in that: include: Cell feeding mechanism, cell splitting mechanism, cell separation and transport mechanism, cell photographing and transmission mechanism, cell stacking and transport mechanism, cell curing mechanism, Cell feeding mechanism: used to straighten the cells and transfer them to the cell splitting mechanism; Cell splitting mechanism: used to split a large cell into multiple small cells; Battery cell splitting and transporting mechanism: used to transport the split small battery cells from the battery cell splitting mechanism to the battery cell photographing and transporting mechanism; Battery cell photographing and transmission mechanism: used to classify, transmit and inspect small battery cells as required; Cell stacking transport mechanism: used to transport small cells and stack each small cell individually on the cell curing mechanism; Cell curing mechanism: used to heat the small cells to cure the conductive adhesive on the small cells, thereby connecting the small cells into a battery string; The battery cell feeding mechanism includes a battery cell feeding transmission line, a transport slide, a transport sliding frame, a transport connecting frame, a transport movable frame, and a transport suction cup. The transport sliding frame moves back and forth on the transport slide, the transport sliding frame is connected to the transport connecting frame, and the transport connecting frame is provided with a transport movable frame that can move up and down. The transport suction cup for sucking the battery cell is provided on the bottom surface of the transport movable frame. The battery cell feeding transmission line or the transport movable frame or the transport suction cup is connected with a battery cell alignment mechanism for adjusting the position and direction of the battery cell. The battery cell splitting mechanism comprises a frame body, a rotating plate, a rotating mechanism, a moving mechanism, a cam guide plate, and a vacuum adsorption hole, the rotating mechanism comprises a rotating cam plate, a rotating rod, and an eccentric adjustment ring, the rotating cam plate is arranged on the cam guide plate, the rotating cam plate is provided with a rotating curve guide groove, the upper end of the rotating rod is fixedly connected to the rotating plate, and the lower end of the rotating rod is connected to an eccentric adjustment ring and a cam follower which moves back and forth in the rotating curve guide groove, and the rotating plate is driven to rotate by the rotating rod, the moving mechanism comprises a moving cam plate, a moving rod, and a guide wheel, the moving cam plate is arranged on the cam guide plate, the moving cam plate is provided with a moving curve guide groove, the upper end of the moving rod is movably connected to the rotating plate through a cam follower, and the lower end of the moving rod is connected to a guide wheel which moves back and forth in the moving curve guide groove, and the moving rod cooperates with the moving curve guide groove to drive the rotating plate to translate; The cell sheet conveying mechanism comprises a conveying Y-axis, a conveying X-axis, a conveying lifting suction cup, a first conveying frame, and a second conveying frame. The conveying X-axis moves forward and backward along the conveying Y-axis. The first conveying frame for conveying edge small pieces and the second conveying frame for conveying middle small pieces move back and forth on the conveying X-axis through a connecting frame. The first conveying frame and the second conveying frame are both provided with a conveying lifting suction cup. The conveying lifting suction cup on each conveying frame is independently controlled. The first conveying frame is connected to a conveying rotating device that drives itself to rotate or drives the conveying lifting suction cup thereon to rotate. The cell sheet photographing transmission mechanism comprises a conveying frame for conveying A conveyor line and a photographing and detecting device for conveying the split small battery sheets. The end of the conveyor line is provided with a photographing and detecting device for photographing the small battery sheets and detecting the position and shape of the small battery sheets. The conveyor line includes one or more of a first intermediate conveyor line for conveying intermediate small sheets with conductive materials, a second intermediate conveyor line for conveying intermediate small sheets without conductive materials or with different conductive materials, a transition conveyor line for conveying edge small sheets, a first edge conveyor line for conveying edge small sheets with conductive materials, and a second edge conveyor line for conveying edge small sheets without conductive materials or with different conductive materials; The battery cell stacking handling mechanism includes a stacking suction cup group and a stacking manipulator. The stacking suction cup group for realizing the independent stacking control of each small battery cell is connected to the stacking manipulator, and the stacking suction cup group is driven by the stacking manipulator to move back and forth; The battery cell curing mechanism includes a curing frame, a transmission belt, an adsorption device, and a heating unit. The adsorption device is arranged on the transmission belt and is used to fix the small battery cell on the transmission belt. The curing frame is provided with a heat preservation cover. The heating unit includes a heating device and a heating hole. The heating unit is arranged on a heating plate located in the curing frame and / or on the heat preservation cover. The transmission belt is connected to a tensioning device for adjusting the tension of the transmission belt. One end of the transmission belt is movably connected to the curing frame and the belt driving device through an active roller, and the other end of the transmission belt is connected to the curing frame or the tensioning device through a correction device.

2. A photovoltaic module production equipment according to claim 1, characterized in that: The battery cell photographing and conveying mechanism also includes a transition conveying mechanism for classifying and conveying the edge small pieces on the transition conveying line to the first edge conveying line and the second edge conveying line.

3. The photovoltaic module production equipment according to claim 1, characterized in that: A folding mechanism for adjusting the spacing between small battery cells is provided on the transport rack, the transport lifting suction cup or the conveyor line.

4. A process for producing photovoltaic modules using the photovoltaic module production equipment according to any one of claims 1 to 3, characterized in that the steps include: (1) Feeding: (1.1) The battery cell is delivered to a conveyor belt, and the conveyor belt delivers the battery cell to a designated location; (1.2) Align the battery cell and absorb the battery cell; (1.2.1) When the clamping and correcting unit is used, the position of the correcting wheel is adjusted in advance according to the size of the battery cell, and the correcting wheel is used to correct the battery cell; the transport sliding frame adjusts its own position so that the transport movable frame is aligned with the center position of the battery cell, the transport movable frame is pressed down, the vacuum device is started, and after the transport suction cup absorbs the battery cell, the transport movable frame is lifted up to make the battery cell leave the conveyor belt; (1.2.2) When an electronic detection type correction unit is used, an image of a cell at a specified position is obtained and the image is analyzed using an image detection device to obtain the current position information of the cell; whether the cell position is correct is determined based on the preset cell correction position information and the current position information; if the current position of the cell is incorrect, the correction information for adjusting the cell from the current position to the correct position is calculated; the cell transport mechanism adjusts the direction angle of the transport movable frame through the correction rotation axis based on the current position information so that the transport movable frame is aligned with the center position of the cell; the transport movable frame is pressed down, and the vacuum device is activated so that the suction cup absorbs the cell; the transport movable frame is lifted up so that the cell is separated from the conveyor belt; the cell transport mechanism adjusts the direction angle of the transport movable frame based on the correction information so that the transport movable frame and the cell are corrected to the correct position; (1.3) The transport slide frame slides on the transport slide table to deliver the aligned battery cells to the battery cell splitting mechanism; (2) Splitting: The vacuum adsorption holes adsorb and fix the battery cells on the rotating plate; the cam guide plate drives the rotating cam plate and the moving cam plate to move upward, and the rotating curved guide groove and the translation curved guide groove respectively drive the rotating rod and the moving rod to move the cells; after the splitting is completed, the cam plate continues to move upward, the rotating rod adjusts the split rotating plate to a horizontal state at the same time, and the moving rod adjusts the rotating plate to the required spacing; (3) Fragmentation transport: (3.1) After the cell splitting mechanism completes the splitting, the transport X-axis moves along the transport Y-axis to the material picking position, the first transport rack and the second transport rack move inwards and combine, the first transport lifting suction cup absorbs the edge small piece, and the second transport lifting suction cup absorbs the middle small piece; (3.2) The transport X-axis moves along the transport Y-axis to directly transport the small battery cell to the loading position of the battery cell photographing and conveying mechanism, or adjust the position of the small battery cell and transport it to the loading position of the battery cell photographing and conveying mechanism; (3.3) When the small battery cell is adjusted in position and transported to the loading position of the battery cell photographing and conveying mechanism: (3.3.1) When a driving device is connected to the transport rack, at any stage of transport, the first transport driving device and the second transport driving device respectively drive the first transport rack and the second transport rack to move outward and apart; (3.3.2) When a transport rotating device is provided on the cell sheet separation transport mechanism, if the edge sheet and the middle sheet have the same structure, there is no need to start the transport rotating device; if the edge sheet and the middle sheet have different structures, after the transport racks are separated, the transport rotating device is used to drive the first transport rack or the first transport lifting suction cup to rotate, thereby driving the edge sheet to rotate, so that the directions of the two edge sheets are consistent; (3.3.3) When a small battery cell folding mechanism is provided on the battery cell separation and transportation mechanism, the small battery cell folding mechanism drives the transportation frame or the transportation lifting suction cup to move horizontally, so that the small battery cells are brought closer to each other; (4) Classification detection: (4.1) The conveyor line classifies and receives the small battery cells sent by the cell handling mechanism; (4.1.1) When the structure of the edge small piece is the same as that of the middle small piece, the first middle conveyor line receives the small battery piece with conductive material, and the second middle conveyor line receives the small battery piece without conductive material or with different conductive material; (4.1.2) When the structures of the edge pieces and the middle pieces are different, the first middle conveyor line receives the middle pieces with conductive materials, the second middle conveyor line receives the middle pieces without conductive materials or with different conductive materials, the transition conveyor line receives the edge pieces, and then the transition transport mechanism places the edge pieces with conductive materials on the first edge conveyor line and the edge pieces without conductive materials or with different conductive materials on the second edge conveyor line according to the conductive material information of each edge piece; (4.2) Determine whether the small battery cells on the conveyor line are folded together. If not, the material-prying claws retract inwards to bring the small battery cells closer together and complete the folding; (4.3) The conveyor line conveys the small battery cell to the inspection position at the end, uses the camera platform to obtain the image of the small battery cell, and transmits the image to the image detection device. The image detection device obtains the position information of the small battery cell based on the image and determines whether the small battery cell is qualified. If it is unqualified, the defective small battery cell information is displayed and a reminder is given. If it is qualified, the position information of the small battery cell is sent to the battery cell stacking and handling mechanism; (5) Stacking: The battery cell stacking transport mechanism receives the position information and stacking information of the small battery cells, and drives the stacking manipulator and the stacking suction cup group to move and rotate, so that the stacking suction cup group on the first manipulator is aligned with the small battery cells on the conveyor line; the stacking manipulator drives the stacking suction cup group to descend and absorb the corresponding small battery cells, and then brings the small battery cells to the loading position of the battery cell curing mechanism; the stacking suction cup stacks the corresponding small battery cells one by one on the curing mechanism in sequence according to the stacking information, wherein the stacking information includes the number of small battery cells in each stacking group, the conductive material information of each small battery cell, and the stacking arrangement of the small battery cells; (6) Curing: The adsorption device fixes the stacked small battery cell group on the conveyor belt, and the conveyor belt transports the small battery cell group to the heating position; the heating unit heats the small battery cells to solidify the conductive material on the small battery cells and connect the small battery cells into a battery string; the conveyor belt transports the battery string to the unloading position.

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