Laser scribing machine

Abstract

The utility model belongs to the technical field of photovoltaic sheet scribing, and mainly relates to a laser scribing machine, which comprises a base, and a conveying mechanism, a grabbing mechanism, a transfer mechanism, a laser scribing mechanism and a splitting mechanism which are arranged on the base, the grabbing mechanism comprises grabbing assemblies and a first rotary driving part, and the grabbing mechanism sequentially rotates the photovoltaic sheets grabbed by the grabbing assemblies to the transfer mechanism; the transfer mechanism comprises a first rotating frame, and a bearing plate is arranged on the first rotating frame; the splitting mechanism comprises a second rotating frame, and two splitting suction claws are arranged on the second rotating frame. Through the arrangement of the rotatable grabbing assembly and the rotatable bearing plate, the photovoltaic sheet is continuously grabbed and continuously transferred in a continuous rotation mode, and scribing is conducted on the photovoltaic sheet in the transferring process, so that the time for the grabbing assembly and the laser scribing mechanism to move back and forth is saved, and in the unit time, the working efficiency is greatly improved. And more photovoltaic pieces can be grabbed and more pieces can be scribed, so that the overall efficiency of scribing and splitting is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of photovoltaic sheet scribing, and mainly relates to a laser scribing machine. Background Art

[0002] Scribing machines are mainly used for slicing solar cells, silicon integrated circuits, light-emitting diodes, lithium niobate, piezoelectric ceramics, gallium arsenide, sapphire, aluminum oxide, iron oxide, quartz, glass, ceramics and other materials. At present, scribing machines include grinding wheel scribers and laser scribers. The grinding wheel scriber cuts the workpiece by its own rotation, while the laser scriber uses a high-energy laser beam to irradiate the surface of the workpiece, causing the irradiated area to partially melt and vaporize, thereby achieving the purpose of slicing. The laser is focused by a special optical system to become a very small light spot with high energy density. Because its processing is non-contact, there is no mechanical impact on the workpiece itself, the workpiece is not easy to deform, and the heat effect is minimal. It is widely used in the cutting and slicing of solar panels and thin metal sheets.

[0003] A Chinese patent document with authorization publication number CN216980533U discloses a laser scribing and splitting machine, which includes a frame, a loading mechanism, a scribing mechanism and a splitting unloading mechanism; the upper end of the frame is provided with a working platform, and a loading box and a unloading box are arranged on the working platform; the loading mechanism includes a first beam and a loading suction cup, and the loading box is arranged below the movement stroke of the loading suction cup; the scribing mechanism includes a battery cell slide assembly and a laser scribing mechanism, the battery cell slide assembly includes a slide rail and a battery cell slide, and the laser scribing mechanism includes a second beam and a scribing laser emitter; the splitting unloading mechanism includes a third beam and a splitting suction claw, and the unloading box is arranged below the movement stroke of the splitting suction claw.

[0004] Although the laser scribing and splitting machine is capable of scribing, because the laser scribing mechanism in the device is scribing the battery cell on one of the slide rails while not scribing the battery cell on the other slide rail at the same time, this alternating scribing method wastes the time of the scribing laser emitter moving back and forth, so the efficiency of this alternating scribing is not effectively improved. Utility Model Content

[0005] The utility model provides a laser scribing machine to solve the problem of low efficiency of the alternate scribing method in the prior art.

[0006] In order to solve the above problems, the utility model adopts the following technical solutions:

[0007] A laser scribing machine comprises a base and a conveying mechanism, a grasping mechanism, a transfer mechanism, a laser scribing mechanism and a splitting mechanism arranged on the base;

[0008] The grabbing mechanism comprises at least three groups of grabbing components that are evenly distributed in the circumferential direction and rotatably mounted, and a first rotating driving member that drives the grabbing components to rotate. The grabbing mechanism rotates the photovoltaic sheets grabbed by each grabbing component to the transport mechanism in sequence;

[0009] The transfer mechanism is used to receive the photovoltaic sheet grasped by the grasping mechanism, and the transfer mechanism includes a first rotating frame rotatably mounted on the base, the first rotating frame rotates around an axis extending in the up-down direction, and at least three receiving plates for placing photovoltaic sheets are evenly spaced in the circumference of the first rotating frame, and a second rotating driving member is installed on the base, and the second rotating driving member is transmission-connected to the first rotating frame;

[0010] The laser scribing mechanism is used to scribing the photovoltaic sheet on one of the receiving plates to produce scratches;

[0011] The splitting mechanism comprises a second rotating frame rotatably mounted on the base, the second rotating frame rotates around an axis extending in the up-down direction, two splitting suction claws are arranged at intervals in the circumferential direction of the second rotating frame, and the two splitting suction claws are used to suck and split the photovoltaic sheet after dicing, and a third rotating driving member is installed on the base, and the third rotating driving member is connected to the second rotating frame in a transmission manner;

[0012] The grabbing assembly grabs the photovoltaic sheet and transfers it to the transfer mechanism, the laser scribing mechanism scribes the photovoltaic sheet, and then the sheet is rotated on the transfer mechanism, and the splitting mechanism grabs the photovoltaic sheet and splits it.

[0013] The invention has the following beneficial effects: by providing a rotatable grasping component, a first rotating frame and a receiving plate installed on the first rotating frame, the photovoltaic sheets are continuously grasped and transported by continuous rotation, and the photovoltaic sheets are scribed during the transportation process, thus saving the time for the grasping component and the laser scriber mechanism to move back and forth, so that more photovoltaic sheets can be grasped and scribed more often within a unit of time, thereby improving the overall efficiency of scriber slicing and splitting.

[0014] Furthermore, the base is provided with two receiving seats to alternately receive the photovoltaic sheets after being split;

[0015] Each of the splitter suction claws comprises:

[0016] A first connecting member, which is fixedly mounted on the second rotating frame;

[0017] A first cylinder, which is fixedly mounted on the first connecting member, wherein the telescopic shaft of the first cylinder extends in the up-down direction, and an L-shaped plate is fixedly mounted on the telescopic shaft of the first cylinder;

[0018] A second cylinder, a fixed end of which is hinged on the L-shaped plate, and a telescopic axis of the second cylinder extends in the up-down direction;

[0019] There are two split plates, both of which extend horizontally, one of which is fixedly mounted on the L-shaped plate, and the other is hinged on the telescopic shaft of the second cylinder, and one side of the split plate is hinged on the L-shaped plate, and there is a gap between the two split plates, and the extension direction of the gap is consistent with the extension direction of the scratch on the photovoltaic sheet;

[0020] The first suction heads are provided in plurality, and the plurality of the first suction heads are evenly distributed on the two split plates.

[0021] The invention has the following beneficial effects: through a rotating action, two splitting suction claws can work simultaneously, that is, when one of them splits, the other one can adsorb the photovoltaic sheet. Compared with the process of adsorbing on the splits one by one, it saves time and improves the splitting efficiency.

[0022] Furthermore, the material receiving seat comprises a first bottom plate, the first bottom plate has a protrusion, both sides of the protrusion are wedge-shaped surfaces, and the inclination directions of the two wedge-shaped surfaces are opposite;

[0023] A plurality of first limiting plates are arranged around the first bottom plate, and the plurality of first limiting plates enclose an area for placing the split photovoltaic sheet.

[0024] The invention has the following beneficial effects: by providing the protrusions, the two photovoltaic sheets after the splitting can be kept away from each other, thus reducing the sorting time and facilitating the subsequent taking and transfer.

[0025] Furthermore, the gripping mechanism comprises:

[0026] A bracket, which is fixedly mounted on the base, and a third cylinder is mounted on the bracket;

[0027] A movable frame is slidably mounted on the bracket in an up-down direction, the telescopic shaft of the third cylinder is connected to the movable frame to drive the movable frame to move, and the first rotary driving member is arranged on the movable frame;

[0028] The third rotating frame is rotatably mounted on the movable frame around an axis extending in the vertical direction. The first rotating drive member is transmission-connected to the third rotating frame. At least three grabbing assemblies are evenly distributed at equal intervals in the circumferential direction of the third rotating frame.

[0029] Furthermore, each of the grabbing components comprises:

[0030] A second connecting member, one end of which is fixedly mounted on the third rotating frame;

[0031] A distribution plate fixedly mounted on the other end of the second connecting member;

[0032] The second suction head is used for adsorbing the photovoltaic sheet. There are a plurality of the second suction heads, and the plurality of the second suction heads are evenly distributed on the distribution plate.

[0033] Furthermore, a visual detector is provided on the base to detect whether the photovoltaic sheet adsorbed by the second suction head is qualified, and a light source is provided around the visual detector, and the light source is used to illuminate the photovoltaic sheet adsorbed by the second suction head.

[0034] Furthermore, the laser scribing mechanism comprises:

[0035] A support frame, which is fixedly mounted on the base;

[0036] A lead screw is rotatably mounted on the support frame, and a fourth rotation driving member is provided on the support frame, and the fourth rotation driving member is transmission-connected to the lead screw;

[0037] A mounting plate, whose threads are mounted on the lead screw to drive the mounting plate to move;

[0038] A laser is used to scribing the photovoltaic sheet on one of the receiving plates to produce scratches on the photovoltaic sheet. The laser is mounted on the mounting plate.

[0039] Furthermore, each of the receiving plates is equipped with a correction component for adjusting the placement of the photovoltaic panels.

[0040] The invention has the following beneficial effects: the position angle of the photovoltaic sheet grasped by the grasping mechanism after being placed on the receiving plate can be adjusted by the correction component, so as to facilitate the precise positioning of the scratch position by laser scribing in the subsequent work section.

[0041] Furthermore, a loading seat is installed on the conveying mechanism, and the loading seat is used to place the photovoltaic sheet. The conveying mechanism is used to convey the loading seat after the photovoltaic sheet is placed, so that the grabbing mechanism grabs the photovoltaic sheet;

[0042] The base is provided with a proximity switch to detect whether the loading seat reaches a designated position for the grabbing mechanism to grab the photovoltaic sheet.

[0043] Furthermore, the loading seat includes a second bottom plate, a plurality of second limiting plates are installed around the second bottom plate to enclose a placement area for the photovoltaic sheet, and an avoidance hole is provided on the second bottom plate;

[0044] A fourth cylinder is provided on the base, the telescopic shaft of the fourth cylinder extends in the up-down direction, a lifting member is installed on the telescopic shaft of the fourth cylinder, and the lifting member passes through the avoidance hole to lift the photovoltaic sheet so that the grasping mechanism can grasp the photovoltaic sheet. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] By reading the detailed description below with reference to the accompanying drawings, the above and other purposes, features and advantages of the exemplary embodiments of the present invention will become easy to understand. In the accompanying drawings, several embodiments of the present invention are shown in an exemplary and non-limiting manner, and the same or corresponding reference numerals represent the same or corresponding parts, wherein:

[0046] Figure 1 It is a structural schematic diagram of the utility model from the first perspective;

[0047] Figure 2 It is a structural schematic diagram of the utility model from a second viewing angle;

[0048] Figure 3 It is a structural diagram of the grasping mechanism;

[0049] Figure 4 It is a structural schematic diagram of a laser scribing mechanism;

[0050] Figure 5 is a schematic diagram of the structure of the splitting mechanism;

[0051] Figure 6 for Figure 5 Enlarged view of point A in the middle.

[0052] Description of reference numerals:

[0053] 1. Base; 2. Grabbing mechanism; 3. Transfer mechanism; 4. Laser scribing mechanism; 5. Slicing mechanism; 6. Material receiving seat; 7. Conveying mechanism; 8. Material loading seat; 9. Visual detector; 10. Light source; 11. Proximity switch; 12. Bracket; 13. Slide rail; 14. Movable frame; 15. Third cylinder; 16. First rotary drive member; 17. Third rotating frame; 18. Second connecting member; 19. Distribution plate; 20. Second suction head; 21. Grabbing assembly; 22. First rotating frame; 23. Receiver plate; 24. Support frame; 25. Lead screw; 26. Mounting plate; 27. Laser; 28. Fourth rotary drive member; 29. ​​Second rotating frame; 30. First connecting member; 31. First cylinder; 32. L-shaped plate; 33. Second cylinder; 34. Slicing plate; 35. Connecting rod; 36. Fourth cylinder; 37. Avoidance hole. DETAILED DESCRIPTION

[0054] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Those skilled in the art should know that the embodiments described below are part of the embodiments of the present disclosure, rather than all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.

[0055] Various non-limiting embodiments of the present invention are described in detail below. Any number of elements in the accompanying drawings is for illustration and not for limitation, and any naming is only for distinction and does not have any limiting meaning. It should be noted that the embodiments and features in the embodiments of the present application can be combined with each other without conflict.

[0056] like Figure 1 , Figure 2 As shown, a laser scribing machine includes a base 1, a conveying mechanism 7, a grabbing mechanism 2, a transfer mechanism 3, a laser scribing mechanism 4 and a splitting mechanism 5. The conveying mechanism 7 is used to convey photovoltaic sheets, the grabbing mechanism 2 is used to grab the photovoltaic sheets conveyed by the conveying mechanism 7, and the grabbing mechanism 2 places the grabbed photovoltaic sheets on the transfer mechanism 3. During the transfer process, the laser scribing mechanism 4 will scribing the photovoltaic sheets to produce scratches, and the scribed photovoltaic sheets will be sucked and split by the splitting mechanism 5 during the rotation process.

[0057] Specifically, Figure 3 As shown, the grabbing mechanism 2 includes a bracket 12, a movable frame 14, a third rotating frame 17 and a grabbing assembly 21. The bracket 12 is fixedly mounted on the base 1 by bolts. The movable frame 14 can slide on the bracket 12 in the up-down direction through the slide rail 13. The bracket 12 is mounted with a third cylinder 15, and the telescopic shaft of the third cylinder 15 is connected to the movable frame 14, thereby driving the movable frame 14 to move in the up-down direction on the bracket 12. The third rotating frame 17 is rotatably mounted on the movable frame 14 through a bearing, and the third rotating frame 17 rotates around an axis extending in the up-down direction. The movable frame 14 is provided with a first rotating driving member 16. The first rotating driving member 16 in this embodiment is a stepping motor, and the first rotating driving member 16 is connected to the third rotating frame 17 in a transmission manner, thereby rotating the third rotating frame 17. The grabbing assembly 21 is used to adsorb the photovoltaic sheet. In this embodiment, there are four grabbing assemblies 21, and these four grabbing assemblies 21 are evenly spaced and evenly distributed in the circumference of the third rotating frame 17. According to actual production conditions, the number of the grabbing components 21 can also be three or more than four, and other mechanisms can be arranged according to the installation angle of the grabbing components 21.

[0058] Specifically, each grabbing assembly 21 includes a second connecting member 18, a distribution plate 19, and a second suction head 20. One end of the second connecting member 18 is fixedly mounted on the third rotating frame 17, and the other end of the second connecting member 18 is fixedly mounted with a distribution plate 19, and the distribution plate 19 extends horizontally. The second suction head 20 is used to adsorb photovoltaic panels. In this embodiment, there are two second suction heads 20, and the two second suction heads 20 are evenly distributed on the distribution plate 19. According to actual production conditions, the number of second suction heads 20 can also be more than two, and multiple second suction heads 20 can more stably adsorb photovoltaic panels.

[0059] like Figure 2 As shown, a visual detector 9 is provided on the base 1 to detect whether the photovoltaic sheet adsorbed by the second suction head 20 is qualified, for example, whether it is damaged or has a missing corner. The visual detector 9 is installed at a position corresponding to a position where the distribution plate 19 stops after rotating. A light source 10 is provided around the visual detector 9, and the light source 10 is used to illuminate the photovoltaic sheet adsorbed by the second suction head 20, increase the brightness of the photovoltaic sheet, make the photovoltaic sheet clearer, and facilitate the visual detector 9 to detect the photovoltaic sheet more accurately.

[0060] The four grabbing components 21 correspond to the four workstations of the grabbing mechanism 2. The first workstation is for placing photovoltaic cells on the conveying mechanism 7, the second workstation is for the visual detector 9, the third workstation is for placing photovoltaic cells on the transfer mechanism 3, and the fourth workstation is for recycling waste products. The positions of the above four workstations remain unchanged, and the four grabbing components 21 rotate alternately to the positions above the four workstations.

[0061] The four grabbing components 21 work simultaneously. The first grabbing component 21 is used to absorb the photovoltaic cells on the conveying mechanism 7. The second grabbing component 21 in the rotation direction is now located above the visual detector 9, and the visual detector 9 is detecting whether the photovoltaic cells are qualified. At the same time, the third grabbing component 21 in the rotation direction is now placing the photovoltaic cells on the transfer mechanism 3. If the fourth grabbing component 21 in the rotation direction detects that the photovoltaic cells are unqualified when the visual detector 9 is used, the photovoltaic cells will not be placed on the transfer mechanism 3 in the subsequent process, but the waste photovoltaic cells will be put down when it is above the waste recycling station.

[0062] Specifically, Figure 2 As shown, the transfer mechanism 3 includes a first rotating frame 22 rotatably mounted on the base 1 through a bearing, and the first rotating frame 22 can rotate around an axis extending in the up-down direction. In this embodiment, the first rotating frame 22 is evenly spaced and evenly distributed with four receiving plates 23 for placing photovoltaic sheets. A second rotating drive member is fixedly mounted on the base 1. The second rotating drive member in this embodiment is a stepping motor. The second rotating drive member is connected to the first rotating frame 22 in a transmission manner, so that the first rotating frame 22 rotates. The transfer mechanism 3 has four unchanged positions, and the four receiving plates 23 alternately pass through the four positions in sequence. The first position is the position for receiving the grabbing mechanism 2 to place the photovoltaic sheet, the second position in the rotation direction is the position for the laser scribing mechanism 4 to scribing, the third position is an idle position, and the fourth position is the position for the splitting mechanism 5 to adsorb the photovoltaic sheet. According to the actual production situation, the number of receiving plates 23 can also be three or more than four, and other mechanisms can be arranged according to the position angle of adjacent receiving plates 23.

[0063] In order to adjust the position of the photovoltaic cell placed on the receiving plate 23 and facilitate the precise positioning of the scratch position in the subsequent laser scribing process, each receiving plate 23 is equipped with a correction component for adjusting the placement position of the photovoltaic cell. The correction component can be the correction mechanism described in the patent document with authorization announcement number CN206139992U.

[0064] Specifically, Figure 4 As shown, the laser scribing mechanism 4 includes a support frame 24, a lead screw 25, a mounting plate 26 and a laser 27. The support frame 24 is fixedly mounted on the base 1 by bolts. The lead screw 25 is rotatably mounted on the support frame 24 through a bearing, and a fourth rotary drive member 28 is provided on the support frame 24. The fourth rotary drive member 28 in this embodiment is a stepping motor, and the fourth rotary drive member 28 is connected to the lead screw 25 to rotate the lead screw 25, wherein the extension direction of the lead screw 25 should be consistent with the extension direction of the scratch. The mounting plate 26 is threadedly mounted on the lead screw 25 to drive the mounting plate 26 to move by the rotation of the lead screw 25. The laser 27 is mounted on the mounting plate 26, and the laser 27 is used to scribing the photovoltaic sheet on the second station to produce scratches on the photovoltaic sheet.

[0065] like Figure 5 , Figure 6 As shown, the splitting mechanism 5 includes a second rotating frame 29 rotatably mounted on the base 1 through a bearing, the second rotating frame 29 can rotate around an axis extending in the up-down direction, and two splitting suction claws are arranged at intervals on the circumference of the second rotating frame 29. In this embodiment, the angle between the two splitting suction claws is 90 degrees. Both of the two splitting suction claws are used to absorb and split the photovoltaic sheet. A third rotating driving member is fixedly mounted on the base 1 by bolts. The third rotating driving member in this embodiment is a stepping motor. The third rotating driving member is connected to the second rotating frame 29 in a transmission manner, so that the second rotating frame 29 can rotate. Two receiving seats 6 are provided on the base 1 to alternately receive the split photovoltaic sheets. The two receiving seats 6 are located on the same straight line, so that when one of the splitting suction claws is splitting, the other splitting suction claw is sucking the photovoltaic sheet; and when the first splitting suction claw is sucking the photovoltaic sheet, the second splitting suction claw is splitting. Through a rotating action, the two split suction claws can work simultaneously, that is, when one of them splits, the other one absorbs the photovoltaic panel. Compared with the process of successively absorbing the splits in one action, time is saved and the splitting efficiency is improved.

[0066] Specifically, each splitting suction claw includes a first connecting member 30, a first cylinder 31, a second cylinder 33, a splitting plate 34 and a first suction head. The first connecting member 30 is fixedly mounted on the second rotating frame 29 by bolts. The first cylinder 31 is fixedly mounted on the first connecting member 30 by bolts, and the telescopic axis of the first cylinder 31 extends in the up-down direction. An L-shaped plate 32 is fixedly mounted on the telescopic axis of the first cylinder 31. The L-shaped plate 32 includes a horizontal transverse plate and a vertical longitudinal plate. The transverse plate is vertically connected to the longitudinal plate, and the telescopic axis of the first cylinder 31 is fixedly connected to the transverse plate. The fixed end of the second cylinder 33 is hinged on the longitudinal plate of the L-shaped plate 32, and the telescopic axis of the second cylinder 33 extends in the up-down direction. There are two split plates 34, both of which extend horizontally, one of which is fixedly mounted on the horizontal plate of the L-shaped plate 32, and the other is hinged on the telescopic shaft of the second cylinder 33, and a connecting rod 35 is fixed on the split plate 34, one end of which is fixed on the split plate 34, and the other end of which is hinged on the horizontal plate of the L-shaped plate 32, so that the split plate 34 can rotate around the horizontal axis, and there is a gap between the two split plates 34, and the extension direction of the gap is consistent with the extension direction of the scratches on the photovoltaic sheet, which is convenient for splitting. There are two first suction heads, which are evenly distributed on the two split plates 34. According to actual production conditions, the number of first suction heads can also be more than two, and multiple first suction heads can more stably adsorb photovoltaic sheets while ensuring a good splitting effect. When splitting, the telescopic shaft of the second cylinder 33 is extended downward, pushing the split plate 34 hinged to the telescopic shaft of the second cylinder 33 to move, so that the two split plates 34 are no longer in the same horizontal plane, and the photovoltaic sheet will be split into two pieces along the scratch.

[0067] Specifically, the receiving seat 6 includes a first bottom plate, the first bottom plate has a protrusion, the extension direction of the protrusion is consistent with the extension direction of the interval, both sides of the protrusion are wedge-shaped surfaces, and the inclination directions of the two wedge-shaped surfaces are opposite. A plurality of first limiting plates are arranged around the first bottom plate, and the plurality of first limiting plates enclose an area for placing the photovoltaic sheet after splitting. By providing the protrusion, the two photovoltaic sheets after splitting can be kept away from each other, which reduces the time for sorting and facilitates the subsequent picking and transfer.

[0068] The conveying mechanism 7 is installed on the base 1, and a loading seat 8 is installed on the conveying mechanism 7. The loading seat 8 is used to place photovoltaic sheets. The conveying mechanism 7 is used to convey the loading seat 8 after the photovoltaic sheets are placed, so that the grabbing mechanism 2 can grab the photovoltaic sheets. A proximity switch 11 is provided on the base 1 to detect whether the loading seat 8 reaches the specified position for the grabbing mechanism 2 to grab the photovoltaic sheets. The proximity switch 11 is located on one side of the first station position of the grabbing mechanism 2.

[0069] Specifically, the loading seat 8 includes a second bottom plate, and a plurality of second limit plates are installed around the second bottom plate to enclose the placement area of ​​the photovoltaic sheet, and the second bottom plate is provided with an avoidance hole 37. A fourth cylinder 36 is provided on the base 1, and the telescopic shaft of the fourth cylinder 36 extends in the up-down direction. A lifting member is installed on the telescopic shaft of the fourth cylinder 36, and the lifting member passes through the avoidance hole 37 to lift the photovoltaic sheet so that the grasping mechanism 2 can grasp the photovoltaic sheet, that is, when the grasping mechanism 2 grasps a photovoltaic sheet, the lifting member lifts a certain distance, and the distance is determined according to the thickness of the photovoltaic sheet.

[0070] By providing a rotatable grasping component, a first rotating frame 22 and a receiving plate 23 installed on the first rotating frame 22, the photovoltaic sheets are continuously grasped and transported by continuous rotation, and the photovoltaic sheets are scratched during the transportation process. This saves the time for the grasping component and the laser scribing mechanism 4 to move back and forth. In this way, more photovoltaic sheets can be grasped and more scribes can be performed per unit time, thereby improving the overall efficiency of slicing and splitting.

[0071] The working process of this utility model is as follows:

[0072] The grabbing mechanism 2 grabs the photovoltaic sheet on the loading seat 8, and then the third rotating frame 17 rotates to make the photovoltaic sheet reach above the visual detector 9 to check whether the photovoltaic sheet is qualified. Then the third rotating frame 17 rotates again to place the photovoltaic sheet on the transfer mechanism 3.

[0073] The correction assembly adjusts the position angle of the photovoltaic sheet, and the first rotating frame 22 rotates at the same time, so that the photovoltaic sheet reaches the laser scribing mechanism 4, and the laser scribing mechanism 4 scribes the photovoltaic sheet to produce scratches for easy splitting. Then the first rotating frame 22 rotates two more stations to reach the splitting mechanism 5.

[0074] One of the splitting claws of the splitting mechanism 5 sucks the photovoltaic cell, and the scratch on the photovoltaic cell is now facing the gap between the two splitting plates 34. Then the second rotating frame 29 rotates to make the photovoltaic cell reach above one of the receiving seats 6, and then splits it, and releases the photovoltaic cell, so that the split photovoltaic cell falls onto the receiving seat 6; while the splitting is being performed above the receiving seat 6, at the same time, another splitting claw is sucking another photovoltaic cell.

Claims

1. A laser scribing machine, characterized in that: It comprises a base (1) and a conveying mechanism (7), a grasping mechanism (2), a transfer mechanism (3), a laser scribing mechanism (4) and a splitting mechanism (5) arranged on the base (1); The gripping mechanism (2) comprises at least three groups of gripping components (21) that are evenly distributed in the circumferential direction and rotatably mounted, and a first rotating drive member (16) that drives the gripping components (21) to rotate. The gripping mechanism (2) sequentially rotates the photovoltaic sheets gripped by each gripping component (21) to the transfer mechanism (3); The transfer mechanism (3) is used to receive the photovoltaic sheet grasped by the grasping mechanism (2), and the transfer mechanism (3) comprises a first rotating frame (22) rotatably mounted on the base (1), the first rotating frame (22) rotates around an axis extending in the up-down direction, at least three receiving plates (23) for placing photovoltaic sheets are evenly spaced in the circumferential direction of the first rotating frame (22), and a second rotating driving member is mounted on the base (1), and the second rotating driving member is transmission-connected to the first rotating frame (22); The laser scribing mechanism (4) is used to scribing the photovoltaic sheet on one of the receiving plates (23) to produce scratches; The splitting mechanism (5) comprises a second rotating frame (29) rotatably mounted on the base (1), the second rotating frame (29) rotates around an axis extending in the up-down direction, two splitting suction claws are arranged at intervals in the circumferential direction of the second rotating frame (29), the two splitting suction claws are used to suck the photovoltaic sheet after slicing and split it, and a third rotating driving member is mounted on the base (1), the third rotating driving member is transmission-connected to the second rotating frame (29); The grabbing assembly (21) grabs the photovoltaic sheet and transfers it to the transfer mechanism (3), the laser scribing mechanism (4) scribes the photovoltaic sheet, and then the sheet is rotated on the transfer mechanism (3), and the splitting mechanism (5) grabs the photovoltaic sheet and splits it.

2. A laser scribing machine according to claim 1, characterized in that: The base (1) is provided with two receiving seats (6) for alternately receiving the photovoltaic sheets after being split; Each of the splitter suction claws comprises: A first connecting member (30) fixedly mounted on the second rotating frame (29); A first cylinder (31) is fixedly mounted on the first connecting member (30), the telescopic shaft of the first cylinder (31) extending in the up-down direction, and an L-shaped plate (32) is fixedly mounted on the telescopic shaft of the first cylinder (31); A second cylinder (33), a fixed end of which is hinged on the L-shaped plate (32), and a telescopic axis of the second cylinder (33) extends in the up-down direction; There are two split plates (34), both of which extend horizontally, one of which is fixedly mounted on the L-shaped plate (32), and the other is hinged on the telescopic shaft of the second cylinder (33), and one side of the split plate (34) is hinged on the L-shaped plate (32), and there is a gap between the two split plates (34), and the extension direction of the gap is consistent with the extension direction of the scratch on the photovoltaic panel; The first suction heads are provided in plurality, and the plurality of the first suction heads are evenly distributed on two split plates (34).

3. A laser scribing machine according to claim 2, characterized in that: The material receiving seat (6) comprises a first bottom plate, the first bottom plate has a protrusion, both sides of the protrusion are wedge-shaped surfaces, and the inclination directions of the two wedge-shaped surfaces are opposite; A plurality of first limiting plates are arranged around the first bottom plate, and the plurality of first limiting plates enclose an area for placing the split photovoltaic sheet.

4. A laser scribing machine according to claim 1, characterized in that: The gripping mechanism (2) comprises: A bracket (12) fixedly mounted on the base (1), wherein a third cylinder (15) is mounted on the bracket (12); A movable frame (14) is slidably mounted on the bracket (12) in an up-down direction, a telescopic shaft of the third cylinder (15) is connected to the movable frame (14) to drive the movable frame (14) to move, and the first rotary drive member (16) is arranged on the movable frame (14); The third rotating frame (17) is rotatably mounted on the movable frame (14) around an axis extending in the up-down direction. The first rotating driving member (16) is transmission-connected to the third rotating frame (17). The third rotating frame (17) has at least three grabbing assemblies (21) evenly spaced around the circumference.

5. A laser scribing machine according to claim 4, characterized in that: Each of the grabbing components (21) comprises: A second connecting member (18), one end of which is fixedly mounted on the third rotating frame (17); A distribution plate (19) fixedly mounted on the other end of the second connecting member (18); The second suction head (20) is used for adsorbing the photovoltaic sheet. There are a plurality of the second suction heads (20), and the plurality of the second suction heads (20) are evenly distributed on the distribution plate (19).

6. A laser scribing machine according to claim 5, characterized in that: The base (1) is provided with a visual detector (9) for detecting whether the photovoltaic sheet adsorbed by the second suction head (20) is qualified. A light source (10) is provided around the visual detector (9), and the light source (10) is used to illuminate the photovoltaic sheet adsorbed by the second suction head (20).

7. The laser scribing machine according to claim 1, characterized in that: The laser scribing mechanism (4) comprises: A support frame (24) fixedly mounted on the base (1); A lead screw (25) is rotatably mounted on the support frame (24); a fourth rotary drive member (28) is provided on the support frame (24); and the fourth rotary drive member (28) is transmission-connected to the lead screw (25); A mounting plate (26) threadedly mounted on the lead screw (25) to drive the mounting plate (26) to move; A laser (27) is used to scribing a photovoltaic sheet on one of the receiving plates (23) so as to produce scratches on the photovoltaic sheet. The laser (27) is mounted on the mounting plate (26).

8. A laser scribing machine according to any one of claims 1 to 7, characterized in that: Each receiving plate (23) is provided with a correction component for adjusting the placement position of the photovoltaic panel.

9. A laser scribing machine according to any one of claims 1 to 7, characterized in that: The conveying mechanism (7) is provided with a loading seat (8), the loading seat (8) is used to place the photovoltaic sheet, and the conveying mechanism (7) is used to convey the loading seat (8) after the photovoltaic sheet is placed, so that the grabbing mechanism (2) can grab the photovoltaic sheet; The base (1) is provided with a proximity switch (11) to detect whether the loading seat (8) has reached a designated position for the grabbing mechanism (2) to grab the photovoltaic sheet.

10. The laser scribing machine according to claim 9, characterized in that: The loading seat (8) comprises a second bottom plate, a plurality of second limiting plates are installed around the second bottom plate to enclose a placement area for the photovoltaic sheet, and an avoidance hole (37) is provided on the second bottom plate; The base (1) is provided with a fourth cylinder (36), the telescopic shaft of the fourth cylinder (36) extends in the up-down direction, and a lifting member is installed on the telescopic shaft of the fourth cylinder (36). The lifting member passes through the avoidance hole (37) to lift the photovoltaic sheet so that the grasping mechanism (2) can grasp the photovoltaic sheet.

Images