CN115223898B - Laser slitting and sorting platform for solar flexible cells - Google Patents

Abstract

The invention discloses a laser splitting and sorting platform for solar flexible battery pieces. The battery piece conveying device is used for conveying battery pieces to the first splitting device and the second splitting device, the laser device is used for carrying out laser cutting scribing on the battery pieces, the first splitting device and the second splitting device are both used for splitting the battery pieces, the splitting direction of the first splitting device is perpendicular to the splitting direction of the second splitting device, and the overturning mechanism is used for overturning the battery pieces subjected to splitting and sucking blanking by the variable-pitch sorting module. The invention has the advantages of high splitting efficiency and difficult damage.

Description

Laser slitting and sorting platform for solar flexible cells

technical field

The invention relates to the technical field of flexible cell processing, in particular to a solar flexible cell laser slitting and sorting platform.

Background technique

Solar flexible cells are thin semiconductor sheets that directly convert light energy into electrical energy through the photoelectric effect or photochemical effect. Based on the current global demand for renewable energy, along with technological progress and technological development, the solar flexible battery market and application prospects are broad. A solar cell panel is composed of several small cells that have been cut and packaged. A single solar cell cannot be used as a direct power supply. It is necessary to splice multiple solar cells together for packaging to form components. These components are called The solar panel is an important part of the solar power generation system.

Traditional flexible cells are mainly broken manually. This method has a high fragmentation rate and low fragmentation efficiency, or the flexible cell is directly cut by a continuous laser. This method is prone to damage due to high temperature during the cutting process. Flexible battery sheet. Based on the above defects, it is necessary to develop a laser slitting and sorting platform for solar flexible cells with high slitting efficiency and not easy to damage.

Contents of the invention

The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art, and provide a solar flexible cell laser slitting and splitting platform with high splitting efficiency and not easily damaged.

The technical solution adopted in the present invention is: the present invention includes a cell transportation device, a laser device, a first splitting device, a second splitting device and an overturning mechanism, and the cell transportation device is used to transport the cells to the first On the splitting device and the second splitting device, the laser device is used to perform laser cutting and scribing on the battery sheet, and the first splitting device and the second splitting device are both used to split the battery sheet. The splitting direction of the first splitting device is perpendicular to the splitting direction of the second splitting device, and the turning mechanism is used to turn over the split cells and supply them to the variable distance sorting module for suction and discharge.

Further, the first splitting device and the second splitting device both include a transport platform, a limit assembly, a swing mechanism and a first drive mechanism, and a swingable swing plate is docked at the end of the transport platform, and the The oscillating mechanism drives the oscillating plate to oscillate, and the first driving mechanism can drive the limiting component to move onto the oscillating plate, and both the oscillating plate and the transport platform are provided with suction ports.

Further, at least two rows of the adsorption ports are provided at the end of the transport carrier, and each row of the adsorption ports is evenly arranged along the direction of the lobes, and at least two rows of the adsorption ports are provided on the swing plate, and each row of the adsorption ports is The adsorption ports are evenly arranged along the direction of the lobes.

Further, the swing mechanism includes a driving cylinder, an angle platform and a connecting rod, the driving cylinder drives the first bracket to move linearly, the movable end of the angle platform is provided with a second bracket, and one end of the connecting rod rotates It fits on the first bracket, and the other end rotates and fits on the second bracket. A swing arm connecting plate is arranged between the movable end of the angle platform and the limit assembly, and a swing arm connecting plate is set on the swing plate. There is a positioning slot, and the bottom of the limit assembly is provided with a positioning portion that cooperates with the positioning slot.

Further, the transport platform includes a jacking mechanism, a support frame and a transmission motor, the jacking mechanism drives the split table to lift, the support frame is provided with a belt drive assembly, and the belt drive assembly is embedded in the On the upper end surface of the split table, the transmission motor drives the belt transmission assembly for transmission, and the suction port is located on the upper end face of the split table.

Further, the cell transportation device includes a first suction mechanism, a second suction mechanism and a first moving mechanism, and the first moving mechanism drives the first suction mechanism and the second suction mechanism to move.

Further, the variable-pitch sorting module includes a tray, several third suction mechanisms, a second drive mechanism that drives several third suction mechanisms to change distances, and a third drive mechanism that drives several third suction mechanisms to move simultaneously. As for the moving mechanism, the tray is located under several of the third suction mechanisms.

Further, the turning mechanism includes a suction rod and a rotating mechanism that drives the suction rod to rotate.

Further, the laser device includes a laser and a second moving mechanism for driving the laser to move, and the laser device also includes a camera positioning device, a cooling device and a temperature measuring device driven by the second moving mechanism and moving with the laser device, the camera positioning device is used to obtain the position information of the battery sheet, the cooling device has an atomizing nozzle for spraying toward the cutting place of the laser, and the temperature measuring device has a device for detecting the cutting process of the laser Infrared thermometer for cutting temperature.

Further, the cutting depth of the cell sheet by the laser device is 65% to 85% of the thickness of the cell sheet, and the splitting angles of the first splitting device and the second splitting device are 15 degrees to 25 degrees.

The beneficial effects of the present invention are:

Compared with the deficiencies of the prior art, in the present invention, the laser cutting and scribing of the cell sheet is carried out by the laser device, and the splitting is realized by using the first splitting device and the second splitting device, so as to avoid the situation that the temperature is too high during the splitting, and, The secondary splitting of the cell into sheet-shaped cells is performed by the first splitting device and the second splitting device, and the loading and unloading is realized through the cell transport device, the turning mechanism and the variable distance sorting module, which makes the splitting process efficient and not easily damaged. The present invention has the advantages of high splitting efficiency and less damage.

Description of drawings

Fig. 1 is the three-dimensional structure schematic diagram of the present invention;

Fig. 2 is a schematic diagram of the three-dimensional structure of the first split device of the present invention;

Fig. 3 is a schematic diagram of the three-dimensional structure of the second split device of the present invention;

Fig. 4 is a schematic diagram of the three-dimensional structure of the second split device of the present invention;

5 is a schematic plan view of the second split device of the present invention;

6 is a schematic plan view of the second split device of the present invention;

Fig. 7 is a schematic diagram of the three-dimensional structure of the split platform of the present invention;

Fig. 8 is a schematic perspective view of the three-dimensional structure of the cell transportation device of the present invention;

Fig. 9 is a schematic diagram of the three-dimensional structure of the variable distance sorting module of the present invention;

Fig. 10 is a schematic diagram of the three-dimensional structure of the turning mechanism of the present invention;

Fig. 11 is a schematic diagram of the three-dimensional structure of the laser device of the present invention.

The reference signs are as follows:

1. Cell transportation device; 2. Laser device; 3. The first split device; 5. The second split device; 6. Turning mechanism; 7. Variable distance sorting module; 10. Swing mechanism; 11. First driving mechanism; 12. Swing plate; 13. Adsorption port; 15. Drive cylinder; 16. Angle platform; 17. Connecting rod; 18. First bracket; ; 20, swing arm connecting plate; 21, positioning groove; 23, jacking mechanism; 24, support frame; 25, transmission motor; 26, split platform; 27, belt drive assembly; 2. Suction mechanism; 30. First moving mechanism; 31. Tray; 32. Third suction mechanism; 33. Second driving mechanism; 34. Suction rod; 35. Rotation mechanism; 36. Laser; 37. Second moving mechanism; 38. Camera positioning device; 39. Cooling device; 40. Temperature measuring device; 41. Belt channel; 65. Manual translation stage; 66. Y-axis moving module; 67. Feeding tray.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

It should be noted that all directional indications in the embodiments of the present invention, such as up, down, left, right, front, back, clockwise, counterclockwise, etc., are only used to explain the relative positions of the components in a certain posture relationship, motion, etc., if the particular pose changes, the directional indication changes accordingly.

In addition, the descriptions involving "first", "second" and so on in the present invention are only for descriptive purposes, and should not be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined as "first" and "second" may explicitly or implicitly include at least one of these features. In addition, the technical solutions of the various embodiments can be combined with each other, but it must be based on the realization of those skilled in the art. When the combination of technical solutions is contradictory or cannot be realized, it should be considered that the combination of technical solutions Exist, also not within the scope of protection required by the present invention.

As shown in FIG. 1, in this embodiment, the present invention includes a cell transport device 1, a laser device 2, a first split device 3, a second split device 5, and a turning mechanism 6. The cell transport device 1 is used for The cells are transported to the first splitting device 3 and the second splitting device 5, the laser device 2 is used for laser cutting and scribing of the cells, the first splitting device 3 and the second splitting device The splitting devices 5 are all used to split the battery slices, the splitting direction of the first splitting device 3 and the splitting direction of the second splitting device 5 are perpendicular to each other, and the turning mechanism 6 is used to flip the splitted battery slices And for the variable distance sorting module 7 to suck and unload. Specifically, the laser slitting and sorting platform for solar flexible cells also includes a loading tray 67 for placing cells and a cell recovery box for placing unqualified cells. The cell transport device 1 will carry The flexible battery sheet on the tool is sucked to the laser cutting and scribing position; the laser device 2 moves to the laser cutting and scribing position for cutting and scribing, and the battery sheet transportation device 1 further sucks the cut battery sheet to the first split device 3 for split, so as to obtain strip-shaped battery slices, and further suck the strip-shaped battery slices to the second split device 5 through the battery slice transport device 1 for secondary splitting. Since the directions of the two splits are perpendicular to each other, the strip-shaped battery slices The slivers are sheet-shaped cells, and the sheet-shaped cells are further absorbed by the turning mechanism 6 and turned over 180 degrees, so that the variable-distance sorting module 7 can absorb the cells for unloading.

Compared with the deficiencies of the prior art, in the present invention, the laser device 2 is used to carry out laser cutting and scribing on the cell sheet, and the first splitting device 3 and the second splitting device 5 are used to realize the splitting, so as to avoid the situation that the temperature is too high during splitting , and, through the first splitting device 3 and the second splitting device 5, the cell is split into sheet-shaped cells for the second time, and the loading and unloading is realized through the cell transport device 1, the turning mechanism 6 and the variable distance sorting module 7, The splitting process is efficient and not easy to be damaged, so that the present invention has the advantages of high splitting efficiency and not easy to be damaged.

As shown in Figures 2 to 7, in some embodiments, the first split device 3 and the second split device 5 both include a transport platform 8, a limit assembly 9, a swing mechanism 10 and a first drive mechanism 11, the end of the transportation platform 8 is docked with a swingable swing plate 12, the swing mechanism 10 drives the swing plate 12 to swing, and the first drive mechanism 11 can drive the limit assembly 9 to move to The oscillating plate 12 , the oscillating plate 12 and the transport platform 8 are all provided with suction ports 13 . Specifically, the two suction ports 13 are in communication with the vacuum generator; the first drive mechanism 11 includes a drive motor and a linear guide rail, the movable end of the drive motor is driven by the lead screw assembly, and the limit assembly 9 slides on the linear guide rail, and the wire The lever assembly and the limit assembly 9 are in phase transmission, and the lead screw assembly is driven by the drive motor, thereby driving the limit assembly 9 to move to the swing plate 12; it is worth mentioning that the transport platform 8 is provided with at least three slivers stations , the split stations of the transport carrier 8 can be set accordingly according to actual needs, and can be three, four, five, etc. In this embodiment, the transport carrier 8 of the first split device 3 is provided with three As for the splitting station, four splitting stations are arranged on the transport platform 8 of the second splitting device 5 .

It should be noted that, when splitting, place the cells that have been cut and scored by laser on the transport platform 8 and the swing plate 12, so that the cells are in contact with the limit assembly 9, and the transport platform 8 and the swing plate 12 are evenly spaced. The battery sheet is adsorbed through the corresponding suction port 13. At this time, the laser cutting line of the battery sheet is located at the docking position between the transport platform 8 and the swing plate 12, and the swing mechanism 10 drives the swing plate 12 to swing downward, so that the slivers Take out the first battery, further transport the carrier 8 and continue to transport the remaining battery pieces, so that the battery pieces are in contact with the limit assembly 9, and the laser cutting line is located at the docking point between the transport platform 8 and the swing plate 12 again Split again at the position to split the second battery, and the subsequent split process can be known in the same way, and will not be repeated here. It is worth mentioning that, according to the requirements of different positions of the lobes, the first driving mechanism 11 can be used to drive the limit assembly 9 to move to the corresponding position on the swing plate 12 to meet the requirements. Therefore, through the swing plate 12, the absorbed cells are swung along the laser cutting line as the center of rotation to achieve splitting, and the remaining cells are transported to the limit assembly 9 through the transport platform 8 to achieve splitting again. In the process of splitting, it can avoid the damage of battery slices due to excessive temperature, and does not require manual intervention, and can achieve multiple cycles of splitting.

As shown in Fig. 3, Fig. 4 and Fig. 6, in some embodiments, at least two rows of the adsorption ports 13 are arranged at the end of the transport carrier 8, and each row of the adsorption ports 13 is uniform along the direction of the lobes. Arrangement, the oscillating plate 12 is provided with at least two rows of the adsorption ports 13, and each row of the adsorption ports 13 is evenly arranged along the direction of the lobes. Specifically, at least two rows of suction openings 13 are provided at the ends of the oscillating plate 12 and the transport platform 8 to improve the accuracy of the split position, and when the cell splits, the adsorption forces on both sides of the split position are relatively close to each other. , thereby improving the accuracy of the lobes.

As shown in Figure 5, in some embodiments, the swing mechanism 10 includes a drive cylinder 15, an angle stage 16 and a connecting rod 17, the drive cylinder 15 drives the first bracket 18 to move linearly, and the angle stage The movable end of 16 is provided with the second support 19, and one end of described connecting rod 17 is rotatably fitted on the described first support 18, and the other end is rotatably fitted on the described second support 19, and the angle platform 16 A swing arm connecting plate 20 is provided between the movable end and the limiting assembly 9, a positioning groove 21 is provided on the swing plate 12, and a positioning groove 21 is provided on the bottom of the limiting assembly 9 to cooperate with the positioning groove 21. department. Specifically, the first bracket 18 and the connecting rod 17 are driven by the driving cylinder 15, thereby driving the movable end of the second bracket 19 and the angle platform 16 to move, so that the swing arm connecting plate 20 can pull the limit assembly 9 around the transport platform The end of 8 swings downward, and the swing angle can be 15 degrees to 25 degrees, preferably close to 20 degrees; in addition, when the limit assembly 9 moves to the swing plate 12, the positioning part is inserted into the positioning groove 21, and through the positioning The size of the slot 21 is to limit the movement stroke of the limiting component 9 .

As shown in Figures 2 to 7, in some embodiments, the transport platform 8 includes a jacking mechanism 23, a support frame 24 and a transmission motor 25, and the jacking mechanism 23 drives the split platform 26 to jack up, so The support frame 24 is provided with a belt transmission assembly 27, the belt transmission assembly 27 is embedded on the upper end surface of the split table 26, the transmission motor 25 drives the transmission of the belt transmission assembly 27, and the suction port 13 Located on the upper end surface of the split platform 26 . Specifically, several downwardly recessed belt passages 41 are provided on the upper end surface of the split platform 26, the belt transmission assembly 27 is supported by the support frame 24 and embedded in several belt passages 41, and the suction port 13 is arranged on the split platform. 26, and are interlaced between several belt passages 41; it should be noted that, when transporting battery chips, the lifting mechanism 23 drives the split table 26 to move downward, while the position of the belt drive assembly 27 remains unchanged. This enables the belt drive assembly 27 to transport the battery slices.

As shown in FIG. 8 , in some embodiments, the cell transportation device 1 includes a first suction mechanism 28 , a second suction mechanism 29 and a first moving mechanism 30 , and the first moving mechanism 30 drives the first A suction mechanism 28 and the second suction mechanism 29 move. Specifically, the first suction mechanism 28 adopts a Bernoulli suction cup, and is used to suck the cell to the laser cutting and scribing position, and further suck the cell to the first split device 3; the second suction mechanism 29 has an adsorption component, and the suction component There is an adsorption hole at the bottom, and the adsorption hole communicates with the vacuum generator, and the adsorption assembly is used to suck the cells on the first split device 3 to the second split device 5; the first moving mechanism 30 is used to drive the first suction mechanism 28 And the second suction mechanism 29 moves on the X axis, the Y axis and the Z axis.

As shown in FIG. 9 , in some embodiments, the variable-pitch sorting module 7 includes a tray 31, several third suction mechanisms 32, and a second drive mechanism that drives several third suction mechanisms 32 to vary the pitch. 33 and a third moving mechanism 68 that drives several third suction mechanisms 32 to move simultaneously, and the tray 31 is located below the several third suction mechanisms 32 . Specifically, the third suction mechanism 32 has suction nozzles for sucking battery slices; the third moving mechanism 68 simultaneously drives several third suction mechanisms 32 to move on the X-axis, Y-axis and Z-axis; The module 7 also includes a Y-axis moving module 66 that drives the tray 31 to move on the Y-axis, so that the third suction mechanism 32 can easily place the battery slices into the tray 31 after sucking them.

As shown in FIG. 10 , in some embodiments, the turning mechanism 6 includes a suction rod 34 and a rotating mechanism 35 that drives the suction rod 34 to rotate. Specifically, the overturning mechanism 6 also includes a manual displacement table 65 capable of adjusting the height of the suction rod 34, through which the suction rod 34 sucks and flips the split cells on the second split device 5 by 180 degrees, so that the variable distance sorting module 7 can Suction the flipped cell.

As shown in Figure 8 and Figure 11, in some embodiments, the laser device 2 includes a laser 36 and a second moving mechanism 37 for driving the laser 36 to move, and the laser device 2 also includes a The moving mechanism 37 drives and moves the camera positioning device 38, the cooling device 39 and the temperature measuring device 40 following the laser 36. The camera positioning device 38 is used to obtain the position information of the battery sheet. The cooling device 39 has a function for moving toward The atomizing nozzle sprayed from the cutting place of the laser 36 , the temperature measuring device 40 has an infrared thermometer for detecting the cutting temperature during the cutting process of the laser 36 . Specifically, the camera positioning device 38 includes a CCD industrial camera; the second moving mechanism 37 drives the laser 36, the camera positioning device 38, the cooling device 39 and the temperature measuring device 40 to move on the X axis, the Y axis and the Z axis; during laser cutting, The battery sheet to be cut is positioned by the camera positioning device 38. During the cutting process of the laser 36, the temperature in the cutting process is detected by the infrared thermometer. Avoid the situation where the temperature is too high during the cutting process, resulting in a high fragmentation rate.

In some embodiments, the cutting depth of the cell slice by the laser device 2 is 65% to 85% of the thickness of the cell slice, and the split angle of the first split device 3 and the second split device 5 is 15 degrees. to 25 degrees. Specifically, the cutting depth of the battery sheet by the laser device 2 is set at 65% to 85% of the thickness of the battery sheet, so that the first splitting device 3 and the second splitting device 5 can be easily split while not easily damaging the cell sheet, and, The cutting depth of the present invention does not exceed 85% of the thickness of the battery sheet, so as to avoid the situation that the cutting is too deep and is easy to break during the suction and transportation process, and can also avoid excessively high working temperature. At the same time, the first split device 3 is matched And the splitting angle of the second splitting device 5 is the setting of 15 degrees to 25 degrees, so that the splitting effect is better, avoiding the situation of incomplete splitting, preferably, the first splitting device 3 and the second splitting device 5 The lob angle of 20 degrees has a better lob effect.

Although the embodiments of the present invention are described in terms of actual solutions, they do not constitute a limitation to the meaning of the present invention. For those skilled in the art, it is obvious to those skilled in the art that the modifications to the embodiments and the combination with other solutions are obvious according to the description .

Claims (9)

1. A solar flexible battery piece laser cuts split letter sorting platform, its characterized in that: the battery piece conveying device (1) is used for conveying battery pieces to the first splitting device (3) and the second splitting device (5), the laser device (2) is used for carrying out laser cutting scribing on the battery pieces, the first splitting device (3) and the second splitting device (5) are both used for splitting the battery pieces, the splitting direction of the first splitting device (3) is mutually perpendicular to the splitting direction of the second splitting device (5), and the overturning mechanism (6) is used for overturning the battery pieces subjected to splitting and feeding by the variable-pitch sorting module (7);

the first splitting device (3) and the second splitting device (5) comprise a transportation carrying table (8), a limiting assembly (9), a swinging mechanism (10) and a first driving mechanism (11), swinging discs (12) are abutted to the tail ends of the transportation carrying table (8), the swinging mechanism (10) drives the swinging discs (12) to swing, the first driving mechanism (11) can drive the limiting assembly (9) to move onto the swinging discs (12), and adsorption ports (13) are formed in the swinging discs (12) and the transportation carrying table (8).

2. The solar flexible battery piece laser splitting and sorting platform according to claim 1, wherein: the tail end of the transport carrier (8) is provided with at least two rows of adsorption ports (13), each row of adsorption ports (13) are uniformly distributed along the direction of the split, the swing disc (12) is provided with at least two rows of adsorption ports (13), and each row of adsorption ports (13) are uniformly distributed along the direction of the split.

3. The solar flexible battery piece laser splitting and sorting platform according to claim 1, wherein: swing mechanism (10) are including driving cylinder (15), angle position platform (16) and connecting rod (17), drive cylinder (15) drive first support (18) rectilinear movement, be provided with second support (19) on the movable end of angle position platform (16), the one end normal running fit of connecting rod (17) is in on first support (18), the other end normal running fit is in on second support (19), the movable end of angle position platform (16) with be provided with swing arm connecting plate (20) between spacing subassembly (9), be provided with constant head tank (21) on swing dish (12), the bottom of spacing subassembly (9) be provided with constant head tank (21) complex location portion.

4. A solar flexible battery sheet laser slit split sorting platform according to any one of claims 1-3, characterized in that: the transportation carrying platform (8) comprises a jacking mechanism (23), a supporting frame (24) and a transmission motor (25), wherein the jacking mechanism (23) drives a splitting table (26) to jack, a belt transmission assembly (27) is arranged on the supporting frame (24), the belt transmission assembly (27) is embedded on the upper end face of the splitting table (26), the transmission motor (25) drives the belt transmission assembly (27) to transmit, and the adsorption port (13) is positioned on the upper end face of the splitting table (26).

5. The solar flexible battery piece laser splitting and sorting platform according to claim 1, wherein: the battery piece conveying device (1) comprises a first suction mechanism (28), a second suction mechanism (29) and a first moving mechanism (30), wherein the first moving mechanism (30) drives the first suction mechanism (28) and the second suction mechanism (29) to move.

6. The solar flexible battery piece laser splitting and sorting platform according to claim 1, wherein: the variable-pitch sorting module (7) comprises a tray (31), a plurality of third suction mechanisms (32), a second driving mechanism (33) for driving a plurality of third suction mechanisms (32) to change the pitch and a third moving mechanism (68) for driving a plurality of third suction mechanisms (32) to move simultaneously, wherein the tray (31) is positioned below the plurality of third suction mechanisms (32).

7. The solar flexible battery piece laser splitting and sorting platform according to claim 1, wherein: the turnover mechanism (6) comprises a suction rod (34) and a rotating mechanism (35) for driving the suction rod (34) to rotate.

8. The solar flexible battery piece laser splitting and sorting platform according to claim 1, wherein: the laser device (2) comprises a laser (36) and a second moving mechanism (37) for driving the laser (36) to move, the laser device (2) further comprises a camera positioning device (38), a cooling device (39) and a temperature measuring device (40), wherein the camera positioning device (38), the cooling device (39) and the temperature measuring device (40) are driven by the second moving mechanism (37) and move along with the laser (36), the camera positioning device (38) is used for acquiring position information of a battery piece, the cooling device (39) is provided with an atomizing nozzle used for spraying towards a cutting position of the laser (36), and the temperature measuring device (40) is provided with an infrared thermometer used for detecting cutting temperature in the cutting process of the laser (36).

9. The solar flexible battery piece laser splitting and sorting platform according to claim 1 or 8, wherein: the cutting depth of the laser device (2) on the battery piece is 65-85% of the thickness of the battery piece, and the splitting angles of the first splitting device (3) and the second splitting device (5) are 15-25 degrees.

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