Laser scribing method for photovoltaic cell processing

Abstract

The present invention discloses a laser scribing method for photovoltaic cell processing, which relates to the technical field of photovoltaic cell scribing. The present invention includes a switching support assembly, which includes a switching support frame, a first hollow scribing table and a second hollow scribing table are slidingly arranged inside the switching support frame, and a laser scribing assembly is fixedly connected to the upper surface of the switching support frame. The laser scribing assembly includes a horizontal support frame and a laser scribing head, and a scribing direction adjustment assembly is arranged inside the first hollow scribing table and the second hollow scribing table, and the scribing direction adjustment assembly includes a direction adjustment support table. The present invention realizes scribing operations in different directions of photovoltaic cells by alternating the positions of the first hollow scribing table and the second hollow scribing table, and the horizontal support frame drives the laser scribing head to move horizontally synchronously to perform scribing in the same direction. The direction adjustment support table is moved up and rotated 90°, and then the scribing operation is performed in the other direction, thereby facilitating operation and improving operation efficiency.

Description

Technical Field

[0001] The present invention belongs to the technical field of photovoltaic cell scribing, and in particular relates to a laser scribing method for photovoltaic cell processing. Background Art

[0002] Photovoltaic cells are thin sheets of optoelectronic semiconductors that use sunlight to generate electricity directly. By laser scribing the photovoltaic cells and cutting the entire cell into smaller units, the current and line resistance inside the component can be reduced, thereby reducing power loss. The scribed cells can be used through more optimized plate design and parallel connection to improve the overall performance of the component. By precisely controlling the scribing process, waste can be minimized and the utilization rate of raw materials can be improved.

[0003] The typical photovoltaic cell scribing process includes equipment preparation, laser focusing, scribing execution, and cutting completion. However, in actual use, when the photovoltaic cell is placed on the operating table, the initial state and the photovoltaic cell offset during scribing can easily cause deviations in subsequent scribing operations. Furthermore, scribing can only be performed after the material is loaded, causing processing pauses and affecting operational efficiency. To address this problem, we provide a laser scribing method for photovoltaic cell processing to solve the above technical problems. Summary of the Invention

[0004] The purpose of the present invention is to provide a laser scribing method for photovoltaic cell processing. By switching the specific structural design of the support component, the laser scribing component and the scribing direction adjustment component, the problem of photovoltaic cell position deviation and processing pause affecting operation efficiency in the above technical background during the scribing operation is solved.

[0005] To solve the above technical problems, the present invention is implemented through the following technical solutions: The present invention is a laser scribing method for photovoltaic cell processing, comprising the following steps:

[0006] S01, placing the photovoltaic cell to be diced with its back side facing upward on a first hollow scribing table, and sliding the positioning and limiting plate on the first hollow scribing table horizontally until the positioning and limiting plate fits against the side of the photovoltaic cell to define the position of the photovoltaic cell;

[0007] S02, controlling the switching transmission belt to move cyclically, so that the first hollow scribing table moves horizontally to just below the laser scribing assembly, and the second hollow scribing table on the switching support assembly moves downward and then upward during the horizontal movement until it moves to the loading position;

[0008] S03, controlling the two drive racks to move synchronously in opposite directions, and the transmission gear drives the drive gear to rotate, so that the horizontal support frame drives the laser scribing head to move horizontally to scribing the photovoltaic cells, and then controlling the horizontal movement distance of the two transmission vertical plates, repeating the operation to perform scribing until all scribing operations in the same direction are completed;

[0009] S04, control the first transmission wheel and the second transmission wheel to rotate synchronously, and drive the lifting and regulating slideway to move up and down through the lifting transmission column. During this process, the direction adjustment transmission column rotates. When the direction adjustment transmission column slides along the corresponding inclined direction adjustment slide groove and disengages, the direction adjustment support table completes the rotation of 90 degrees, and then the laser scribing head moves back and forth to perform the scribing operation in the other direction. After the direction adjustment support table rotates 90 degrees, the electromagnet is re-energized, and the photovoltaic cell is re-positioned through the reset spring and the positioning limit plate to ensure the scribing accuracy;

[0010] S05. During the scribing operation on the photovoltaic cell on the first hollow scribing stage, the second hollow scribing stage defines the position of the photovoltaic cell. After the scribing of the photovoltaic cell on the first hollow scribing stage is completed, the first hollow scribing stage and the second hollow scribing stage are alternated, and the above operation is repeated.

[0011] The present invention is further configured as follows: the switching support assembly includes a switching support frame, the first hollow scribing table and the second hollow scribing table are both slidably arranged inside the switching support frame, and the upper surfaces of the first hollow scribing table and the second hollow scribing table are both provided with direction switching openings; a control support plate is fixedly connected to the bottom of the switching support frame, and a switching control slide is provided on the surface of the control support plate, and the switching control slide is composed of a first upper horizontal slide, a first inclined slide, a lower horizontal slide, a second inclined slide and a second upper horizontal slide connected in sequence.

[0012] The present invention is further configured such that two guide support uprights are symmetrically fixedly connected to the lower surface of the second hollow scribing table, one end of the two guide support uprights is fixedly connected to a support transmission block, a transmission cross column is fixedly connected between the two support transmission blocks, the transmission cross column slides with the switching control slide, and a switching transmission plate is slidingly arranged between the two guide support uprights; a number of driving wheels are symmetrically rotatably connected on the two inner side walls of the switching support frame, and the driving wheels are connected by a switching transmission belt, the first hollow scribing table is fixedly connected to the first transmission frame on the two relative side surfaces, the first transmission frame is fixedly connected to the corresponding switching transmission belt, the switching transmission plate is fixedly connected to the second transmission frame on the two relative side surfaces, and the second transmission frame is fixedly connected to the corresponding switching transmission belt.

[0013] The present invention is further configured such that a laser scribing assembly is fixedly connected to the upper surface of the switching support frame, and the laser scribing assembly includes a scribing support frame fixedly connected to the upper surface of the switching support frame, a guide slot is provided in the top of the scribing support frame, and a driving screw is rotatably connected between the two inner side walls of the guide slot, and two transmission vertical plates are symmetrically slidably arranged inside the guide slot, and the transmission vertical plates are threadedly engaged with the driving screw; two transmission screws are symmetrically rotatably connected between the two transmission vertical plates, and two adjusting gears are symmetrically rotatably arranged on one side of one of the transmission vertical plates, the two adjusting gears are meshed with each other, and the adjusting gears are fixedly connected to the corresponding transmission screw, and a transmission adjustment bar is threadedly engaged with the circumferential side of the transmission screw, and the transmission adjustment bar slides between the extension block and the top of the scribing support frame, and one side of the transmission adjustment bar is fixedly connected to the driving rack.

[0014] The present invention is further configured as follows: two guide slide bars are symmetrically fixedly connected between the two transmission vertical plates, a scribing support frame is slidably arranged between the two guide slide bars, a transmission gear is rotatably connected to the upper surface of the scribing support frame, the transmission gear is located between the two driving racks, and the two driving racks and the transmission gear are meshed with each other; a driving gear is rotatably arranged on the top of the scribing support frame, the driving gear and the transmission gear are fixedly connected, a horizontal support frame is slidably arranged between the two relative side surfaces of the scribing support frame, a transmission rack is fixedly connected to an inner side wall of the horizontal support frame, the driving gear and the transmission rack are meshed with each other, and a laser scribing head is fixedly connected to the lower surface of the horizontal support frame.

[0015] The present invention is further configured such that a scribing direction adjustment component is provided inside the first hollow scribing table and the second hollow scribing table, and the scribing direction adjustment component includes a direction adjustment support table that slides with the direction adjustment switching port, and a plurality of limiting grooves are symmetrically provided on the upper surface of the direction adjustment support table, and the interval between two adjacent limiting grooves is 90°; an electromagnet is fixedly connected to an inner side wall of the limiting groove, a positioning limiting plate is slidingly provided inside the limiting groove, a magnetic attraction plate is fixedly connected to a side surface of the positioning limiting plate, and a reset spring is fixedly connected between the other inner side wall of the limiting groove and the positioning limiting plate.

[0016] Material toggling mechanism, its both sides respectively have a cylinder pressure, and the cylinder pressure bar connects swing arm, and the swing arm end face has hook portion, and a bar passes position between the end of two swing arms and the hook portion.

[0017] The cam is connected to the first gear and the second gear is connected with the drive gear of the driving member, and the cam is connected with the control wheel of the driving member, and the control wheel is connected with the control wheel of the driving member, and the control wheel is connected with the control wheel of the driving member.

[0018] The present invention has the following beneficial effects: 1. The present invention sets a switching support assembly, and the switching transmission belt moves to drive the first hollow scribing table and the second hollow scribing table to move synchronously. Under the sliding cooperation of the transmission cross column and the switching control slide, the second hollow scribing table moves horizontally and then moves down and up. The positions of the first hollow scribing table and the second hollow scribing table are alternated. When the first hollow scribing table is scribing, the second hollow scribing table is loading, thereby realizing synchronous operation of the two workstations, so that the loading and scribing operations are carried out synchronously, thereby improving the scribing efficiency.

[0019] 2. The present invention sets a laser scribing component and a scribing direction adjustment component. After the laser scribing head completes the scribing operation on the photovoltaic cell in the same direction, the direction adjustment support platform is moved up and rotated 90° to adjust the photovoltaic cell by 90°. Then, the laser scribing head is used to perform the scribing operation in the other direction on the adjusted photovoltaic cell, thereby realizing the scribing operation in two perpendicular directions of the photovoltaic cell in sequence.

[0020] 3. The present invention sets a scribing direction adjustment component, places the photovoltaic cell to be scribed with its back facing upward on the direction adjustment support table, disconnects the power supply of the electromagnet, and the magnetic attraction between the electromagnet and the magnetic plate disappears. Under the elastic recovery action of the reset spring, the positioning limit plate moves horizontally until it fits with the side of the photovoltaic cell, thereby achieving position limitation of the photovoltaic cell, keeping the photovoltaic cell position centered, and avoiding offset in the scribing operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of 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 ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0022] Figure 1 The figure is a structural diagram of a laser scribing method for photovoltaic cell processing.

[0023] Figure 2 It is a structural schematic diagram of the switching support assembly in the present invention.

[0024] Figure 3 It is a longitudinal structural cross-sectional view of the switching support assembly in the present invention.

[0025] Figure 4 This is another longitudinal structural cross-sectional view of the switch support assembly in the present invention.

[0026] Figure 5 for Figure 3 Schematic diagram of the structure from another angle.

[0027] Figure 6 Schematic diagram of the structure of the laser scribing assembly in the present invention.

[0028] Figure 7 It is a partial structural schematic diagram of the laser scribing assembly in the present invention.

[0029] Figure 8 It is a longitudinal cross-sectional view of a part of the structure of the laser scribing assembly in the present invention.

[0030] Figure 9 It is a structural schematic diagram of the scribing and direction adjustment component in the present invention.

[0031] Figure 10 This is a schematic structural diagram of the scribing and direction adjustment component from another angle in the present invention.

[0032] Figure 11 It is a partial structural diagram of the scribing and direction adjustment component in the present invention.

[0033] Figure 12 for Figure 11 Longitudinal structural cross-section view.

[0034] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0035] 1-Switch support assembly, 101-First hollow scribing table, 102-Second hollow scribing table, 103-Switch support frame, 104-Direction switching port, 105-Control support plate, 106-Switch control slide, 107-Guide support vertical rod, 108-Transmission horizontal column, 109-Switch transmission plate, 110-Switch transmission belt, 111-First transmission frame, 112-Second transmission frame, 2-Laser scribing assembly, 201-Scribing support frame, 202-Guide slide, 203-Drive screw, 204-Transmission vertical plate, 205-Drive screw, 206-Adjustment gear, 207-Drive rack, 208-Guide slide, 209-Scribing Support frame, 210-transmission gear, 211-drive gear, 212-horizontal support frame, 213-transmission rack, 214-laser scribing head, 3-scribing direction adjustment assembly, 301-direction adjustment support platform, 302-limiting slide, 303-electromagnet, 304-positioning limit plate, 305-magnetic plate, 306-reset spring, 307-limiting bar, 308-lifting guide plate, 309-lifting control slide, 310-lifting guide slide, 311-direction adjustment drive ring, 312-first transmission wheel, 313-transmission connecting rod, 314-lifting transmission column, 315-second transmission wheel, 316-direction adjustment transmission column, 317-tilt direction adjustment slide. DETAILED DESCRIPTION

[0036] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 making any creative efforts shall fall within the scope of protection of the present invention.

[0037] For specific embodiment 1, please refer to Figure 1-12The present invention provides a laser scribing method for photovoltaic cell processing. The laser scribing device used in the method includes a switching support assembly 1, which includes a first hollow scribing stage 101 and a second hollow scribing stage 102 that are slidably arranged. The laser scribing method includes the following steps:

[0038] S01. Place the photovoltaic cell to be diced with its back side facing upward on the first hollow scribing stage 101, and slide the positioning and limiting plate 304 on the first hollow scribing stage 101 horizontally until the positioning and limiting plate 304 is in contact with the side of the photovoltaic cell, thereby limiting the position of the photovoltaic cell.

[0039] S02, controlling the switching transmission belt 110 to move cyclically, so that the first hollow scribing stage 101 moves horizontally to just below the laser scribing assembly 2, and the second hollow scribing stage 102 on the switching support assembly 1 moves downward and then upward during the horizontal movement until it moves to the loading position;

[0040] S03, controlling the two drive racks 207 to move synchronously in opposite directions, and the transmission gear 210 drives the drive gear 211 to rotate, so that the horizontal support frame 212 drives the laser scribing head 214 to move horizontally to scribing the photovoltaic cells. The horizontal movement distance of the two transmission vertical plates 204 is controlled, and the scribing operation is repeated until all scribing operations in the same direction are completed;

[0041] S04, control the first transmission wheel 312 and the second transmission wheel 315 to rotate synchronously, and drive the lifting and regulating slide 309 to move up and down through the lifting transmission column 314. During this process, the direction adjustment transmission column 316 rotates. When the direction adjustment transmission column 316 slides along the corresponding inclined direction adjustment slot 317 and disengages, the direction adjustment support table 301 completes the rotation of 90 degrees, and then the laser scribing head 214 reciprocates to perform the scribing operation in the other direction. After the direction adjustment support table 301 rotates 90 degrees, the electromagnet 303 is re-energized, and the photovoltaic cell is re-positioned through the reset spring 306 and the positioning limit plate 304 to ensure the scribing accuracy;

[0042] S05. During the scribing operation on the photovoltaic cells on the first hollow scribing stage 101, the second hollow scribing stage 102 defines the position of the photovoltaic cells. After the scribing of the photovoltaic cells on the first hollow scribing stage 101 is completed, the first hollow scribing stage 101 and the second hollow scribing stage 102 are alternated, and the above operation is repeated.

[0043] For specific embodiment 2, please refer to Figure 2-5On the basis of the first specific embodiment, specifically, the switching support assembly 1 further includes a switching support frame 103, the first hollow scribing table 101 and the second hollow scribing table 102 are both slidably arranged inside the switching support frame 103, and in the initial state, the first hollow scribing table 101 and the second hollow scribing table 102 are respectively located at the two end positions inside the switching support frame 103, the initial state position of the first hollow scribing table 101 corresponds to the loading station, and the initial state position of the second hollow scribing table 102 corresponds to the scribing station, and the upper surfaces of the first hollow scribing table 101 and the second hollow scribing table 102 are both provided with a direction switching port 104; the bottom of the switching support frame 103 is fixedly connected to a regulating support plate 105, and the surface of the regulating support plate 105 is provided with a switching regulating slide 106, and the switching regulating slide 106 is composed of a first upper horizontal slide, a first inclined slide, a lower horizontal slide, a second inclined slide and a second upper horizontal slide connected in sequence.

[0044] Furthermore, two guide support uprights 107 are symmetrically fixedly connected to the lower surface of the second hollow scribing table 102, one end of the two guide support uprights 107 is fixedly connected to a support transmission block, a transmission cross column 108 is fixedly connected between the two support transmission blocks, and the transmission cross column 108 slides with the switching control slide 106. The sliding cooperation between the transmission cross column 108 and the switching control slide 106 drives the transmission cross column 108 to move horizontally, upward and downward, and a switching transmission plate 109 is slidingly provided between the two guide support uprights 107; a number of driving wheels are symmetrically connected to the two inner side walls of the switching support frame 103, and a driving source is fixedly installed on one side of the switching support frame 103, and a fixed connection between the output shaft of the driving source and the driving wheel is provided. The drive wheels are fixedly connected, and the drive source drives the drive wheels to rotate. The drive wheels are connected by a switching transmission belt 110. The first hollow scribing table 101 is fixedly connected to the first transmission frame 111 on both opposite sides. The first transmission frame 111 is fixedly connected to the corresponding switching transmission belt 110. The switching transmission plate 109 is fixedly connected to the second transmission frame 112 on both opposite sides. The second transmission frame 112 is fixedly connected to the corresponding switching transmission belt 110. There is a certain distance between the parts of the switching transmission belt 110 on both sides of the drive wheel. The first transmission frame 111 is fixedly connected to the part of the switching transmission belt 110 on the upper side of the drive wheel, and the second transmission frame 112 is fixedly connected to the part of the switching transmission belt 110 on the lower side of the drive wheel.

[0045] The operating process of this embodiment is: when the photovoltaic cell to be diced is placed with the back side facing up on the first hollow scribing table 101 and the position is defined, the driving source is started to drive the corresponding driving wheel to rotate, and under the connection action of the switching transmission belt 110, the switching transmission belt 110 moves. Since the first hollow scribing table 101 is fixedly connected to the switching transmission belt 110 through the first transmission frame 111, during the movement of the switching transmission belt 110, the first hollow scribing table 101 moves synchronously with the switching transmission belt 110 and moves toward the laser scribing assembly 2.

[0046] During this process, since the switching transmission plate 109 is fixedly connected to the switching transmission belt 110 through the second transmission frame 112, during the movement of the switching transmission belt 110, the switching transmission plate 109 moves synchronously with the switching transmission belt 110, and under the connection action of the guide support vertical rod 107, the second hollow scribing table 102 and the transmission cross column 108 move synchronously. Under the sliding cooperation action of the transmission cross column 108 and the switching control slide 106, when the transmission cross column 108 slides along the first upper horizontal slide to the intersection of the first inclined slide and the first upper horizontal slide, as the switching transmission plate 109 moves, the transmission cross column 108 moves along the first inclined slide. The inclined slide moves downward, and under the connection action of the supporting transmission block, the two guide support vertical rods 107 slide downward synchronously along the surface of the switching transmission plate 109. Under the connection action of the guide support vertical rods 107, the second hollow scribing table 102 moves downward synchronously. When the transmission cross column 108 moves to the lower horizontal slide, the second hollow scribing table 102 is located below the first hollow scribing table 101. As the transmission cross column 108 slides along the lower horizontal slide, the second hollow scribing table 102 and the first hollow scribing table 101 first approach each other. When the transmission cross column 108 moves to the middle position of the lower horizontal slide, the second hollow scribing table 102 is located below the first hollow scribing table 101. As the transmission crossbar 108 continues to slide along the lower horizontal slide, the second hollow scribing table 102 and the first hollow scribing table 101 are intertwined and move away from each other. When the transmission crossbar 108 moves to the intersection of the lower horizontal slide and the second inclined slide, the second hollow scribing table 102 is completely dislocated from the first hollow scribing table 101. As the switching transmission plate 109 moves, the transmission crossbar 108 moves along the second inclined slide and drives the second hollow scribing table 102 to move upward through the connection of the guide support vertical rod 107. As the transmission crossbar 108 moves, when the transmission crossbar 108 moves to the end of the second upper horizontal slide, the second hollow scribing table 102 is completely dislocated from the first hollow scribing table 101. The empty scribing table 102 is synchronously moved to the loading station (the position of the first hollow scribing table 101 in the initial state), and at the same time, the first hollow scribing table 101 is moved to directly below the laser scribing assembly 2 (the position of the second hollow scribing table 102 in the initial state), and the first hollow scribing table 101 performs the scribing operation, and the second hollow scribing table 102 performs the loading; when the photovoltaic cell on the first hollow scribing table 101 completes the scribing operation, the switching transmission belt 110 moves in the opposite direction, and the first hollow scribing table 101 and the second hollow scribing table 102 exchange positions again, and then the scribing operation is performed on the photovoltaic cell on the second hollow scribing table 102, and the operation is repeated.

[0047] For specific example three, please refer to Figure 6-8On the basis of the specific embodiment 1 and the specific embodiment 2, specifically, the upper surface of the switching support frame 103 is fixedly connected with the laser scribing assembly 2, and the laser scribing assembly 2 includes a scribing support frame 201 fixedly connected to the upper surface of the switching support frame 103. A guide slot 202 is provided on the top of the scribing support frame 201. A driving screw 203 is rotatably connected between the two inner side walls of the guide slot 202. A first driving motor is fixedly installed on one side of the scribing support frame 201. The output shaft of the first driving motor is fixedly connected to the driving screw 203. Two transmission vertical plates 204 are symmetrically slidably provided inside the guide slot 202. The transmission vertical plates 204 are threadedly engaged with the driving screw 203. The two transmission vertical plates 204 are symmetrically rotatably connected There are two transmission screws 205, and a second driving motor is fixedly installed on one side of one transmission vertical plate 204. The output shaft of the second driving motor is fixedly connected to one of the transmission screws 205. Two adjusting gears 206 are symmetrically arranged on one side of one transmission vertical plate 204. The two adjusting gears 206 are meshed with each other, and the adjusting gears 206 are fixedly connected to the corresponding transmission screws 205. The transmission screw 205 is threaded on the side surface with a transmission adjustment bar, which slides with the top of the dicing support frame 201 through the extension block, and a driving rack 207 is fixedly connected to one side of the transmission adjustment bar, which slides with the top of the dicing support frame 201 through the extension block, and is used to adjust the displacement of the driving rack 207.

[0048] Furthermore, two guide slides 208 are symmetrically fixedly connected between the two transmission vertical plates 204, and a scribing support frame 209 is slidably arranged between the two guide slides 208. A transmission gear 210 is rotatably connected to the upper surface of the scribing support frame 209, and the transmission gear 210 is located between the two driving racks 207, and the two driving racks 207 and the transmission gear 210 are meshed with each other; a driving gear 211 is rotatably arranged on the top of the scribing support frame 209, and the driving gear 211 is fixedly connected to the transmission gear 210, and a horizontal support frame 212 is slidably arranged between the two opposite side surfaces of the scribing support frame 209, and a transmission rack 213 is fixedly connected to an inner wall of the horizontal support frame 212, and the driving gear 211 and the transmission rack 213 are meshed with each other, and a laser scribing head 214 is fixedly connected to the lower surface of the horizontal support frame 212.

[0049] The operation process of this embodiment is as follows: when the first hollow scribing stage 101 and the second hollow scribing stage 102 drive the photovoltaic cell to move to the bottom of the laser scribing assembly 2, the second drive motor is started to drive the corresponding transmission screw 205 to rotate, and the corresponding adjustment gear 206 rotates synchronously. Under the meshing action of the two adjustment gears 206, the two adjustment gears 206 rotate synchronously in the opposite direction, and then the two transmission screws 205 rotate synchronously in the opposite direction. Under the thread cooperation action of the transmission screw 205 and the corresponding transmission adjustment bar, the two transmission adjustment bars drive The driving rack 207 moves synchronously in the opposite direction. Under the meshing action of the driving rack 207 and the transmission gear 210, the transmission gear 210 rotates, thereby driving the driving gear 211 to rotate synchronously. Under the meshing action of the driving gear 211 and the transmission rack 213, the transmission rack 213 moves and drives the horizontal support frame 212 to move synchronously. The laser scribing head 214 moves synchronously with the horizontal support frame 212 and performs a scribing operation on the photovoltaic cell until the laser scribing head 214 is away from the photovoltaic cell, and one scribing operation is completed in sequence.

[0050] After the laser scribing head 214 completes the scribing operation in sequence, the first drive motor is started to drive the drive screw 203 to rotate. Under the action of the threaded cooperation between the drive screw 203 and the two transmission vertical plates 204, the transmission vertical plates 204 slide horizontally along the guide slide 202 for a distance, and the laser scribing head 214 moves one end distance synchronously. The corresponding drive screw 205 is driven to rotate in the opposite direction by the second drive motor, and the two drive racks 207 drive the drive racks 207 to move synchronously, so that the transmission gear 210 and the drive gear 211 rotate in the opposite direction, and the horizontal support frame 212 moves horizontally in the opposite direction, and the laser scribing head 214 performs the next scribing operation: repeat the above operation until the scribing operation in the same direction of the photovoltaic cell is completed.

[0051] For specific example 4, please refer to Figure 9-12On the basis of the first, second and third embodiments, specifically, a scribing direction adjustment component 3 is provided inside the first hollow scribing table 101 and the second hollow scribing table 102. The scribing direction adjustment component 3 includes a direction adjustment support table 301 that slides with the direction adjustment switch port 104. A plurality of limiting slide grooves 302 are symmetrically provided on the upper surface of the direction adjustment support table 301. The interval between two adjacent limiting slide grooves 302 is 90 degrees, and the limiting slide grooves 302 are cross-shaped. A limiting slide groove 302 is fixedly connected to the inner wall of the limiting slide groove 302. The electromagnet 303 and the limiting slide groove 302 are internally provided with a positioning limiting plate 304, which moves synchronously to limit the position of the photovoltaic cell and keeps the photovoltaic cell at the center of the adjustment support platform 301. A magnetic plate 305 is fixedly connected to one side of the positioning limiting plate 304, and a return spring 306 is fixedly connected between the other inner wall of the limiting slide groove 302 and the positioning limiting plate 304. In the initial state, the electromagnet 303 is energized and magnetically attracted to the magnetic plate 305, and the return spring 306 is in a stretched state.

[0052] Furthermore, the lower surface of the adjustment support platform 301 is fixedly connected to a lifting support column, and two limit bars 307 are symmetrically fixedly connected to the side surfaces of the lifting support column. The lower surface of the lifting support column is rotatably connected to a lifting guide plate 308, and one side of the lifting guide plate 308 is fixedly connected to a lifting and regulating slide 309. The lifting and regulating slide 309 is composed of a section of an arc slide and a horizontal slide fixedly connected to both ends of the arc slide. The first hollow scribing table 101 and the second hollow scribing table 102 are fixedly connected at the bottom There is a lifting guide slide 310, and the lifting guide plate 308 slides with the lifting guide slide 310, and the first hollow scribing table 101 and the second hollow scribing table 102 are fixedly connected to the corresponding lifting guide plate 308 with elastic elements. The bottom of the first hollow scribing table 101 and the second hollow scribing table 102 are fixedly connected to a support frame, and one side of the support frame is rotatably connected to a direction adjustment drive ring 311, and the direction adjustment drive ring 311 slides with the two limit bars 307 and the lifting support column.

[0053] Furthermore, the scribing direction adjustment component 3 also includes a first extension support plate and a second extension support plate fixedly connected to the bottom of the first hollow scribing table 101 and the second hollow scribing table 102, one side of the first extension support plate is rotatably connected to the first transmission wheel 312, the first hollow scribing table 101 and the second hollow scribing table 102 are both fixedly installed with a third drive motor through a motor seat, the output shaft of the third drive motor is fixedly connected to the first transmission wheel 312, and the other side of the first extension support plate is rotatably provided with a transmission connecting rod 313, one end of the transmission connecting rod 313 is fixedly connected to the first transmission wheel 312 through a first rotating shaft, and one side of the transmission connecting rod 313 is fixedly connected to a lifting transmission column 314, which slides with the lifting control slide 309; one side of the second extension support plate is rotatably connected to the second transmission wheel 315, and the first transmission wheel 312 is rotatably matched with the first transmission wheel 312. The two transmission wheels 315 are connected by an adjustable transmission belt, and a transmission disc is rotatably provided on the other side of the second extended support plate, and two adjustment transmission posts 316 are symmetrically fixedly connected to the circumferential side of the transmission disc; two inclined adjustment sliding grooves 317 are symmetrically provided on the circumferential side of the adjustment drive ring 311, and the inclined adjustment sliding grooves 317 are arranged between the 90° areas of the circumferential side of the adjustment drive ring 311. The two inclined adjustment sliding grooves 317 are staggered with each other, and the adjustment transmission post 316 slides with the corresponding inclined adjustment sliding grooves 317. When the adjustment transmission post 316 slides with the corresponding inclined adjustment sliding grooves 317, as the adjustment transmission post 316 moves, the adjustment transmission post 316 pushes the inner wall of the inclined adjustment sliding groove 317, causing the adjustment drive ring 311 to rotate under force, and when the adjustment transmission post 316 just disengages from the corresponding inclined adjustment sliding groove 317, the adjustment drive ring 311 completes a 90° rotation.

[0054] The operation process of this embodiment is: place the back of the scribed photovoltaic cell facing upward on the adjustment support platform 301, disconnect the power supply of the electromagnet 303, and the magnetic attraction between the electromagnet 303 and the magnetic attraction plate 305 disappears. Under the elastic recovery action of the reset spring 306, the positioning limit plate 304 slides along the corresponding limiting groove 302 until the positioning limit plate 304 is in contact with the side of the photovoltaic cell, so that the position of the photovoltaic cell is limited and located at the center of the adjustment support platform 301.

[0055] After the laser scribing head 214 completes the scribing operation on the photovoltaic cells in the same direction, the third drive motor is started to drive the first transmission wheel 312 to rotate, and under the connection action of the adjustment transmission belt, the second transmission wheel 315 rotates synchronously; the rotation of the first transmission wheel 312 drives the transmission connecting rod 313 to rotate synchronously. In this process, the second transmission wheel 315 rotates and drives the adjustment transmission column 316 to rotate synchronously through the transmission disc, and the transmission connecting rod 313 drives the lifting transmission column 314 to move synchronously. Under the sliding cooperation action of the lifting transmission column 314 and the lifting and regulating slide 309, the lifting transmission column 314 slides from the middle position of the arc slide to the horizontal slide direction. The lifting transmission column 314 slides along the arc slide, and the external force applied by the lifting transmission column 314 to the lifting and regulating slide 309 is weakened. Under the elastic recovery action of the elastic element, the lifting and regulating slide When the lifting and lowering rod 314 is moved to the intersection of the horizontal slide and the horizontal slide, the lifting and lowering rod 314 moves to the inside of the horizontal slide, and the directional support platform 301 continues to move upward. When the transmission link 313 completes the 90° rotation, the lifting and lowering rod 314 moves to the position where the horizontal slide is away from the curved slide. As the transmission link 313 continues to rotate, the lifting and lowering rod 314 moves in the opposite direction along the horizontal slide to a position close to the curved slide, and the directional support platform 301 continues to move upward. When the lifting and lowering rod 314 moves to the intersection of the horizontal slide and the curved slide, the directional control rod 316 contacts the end of the corresponding inclined directional control slot 317.

[0056] When the cam 314 is in the middle of the arc slide, the cam 316 is in the middle of the arc slide, and the cam 316 is in the middle of the arc slide.

[0057] After the slicing is completed, the first transmission wheel 312 is controlled to continue to rotate, the transmission connecting rod 313 rotates, and the lifting transmission column 314 slides from the arc slide to the inside of another horizontal slide. As the lifting transmission column 314 moves, the lifting transmission column 314 presses down the lifting and regulating slide 309, and the lifting support column drives the adjustment support platform 301 to move downward. At the same time, under the sliding cooperation of the other adjustment transmission column 316 and the corresponding inclined adjustment slide groove 317, the adjustment support platform 301 rotates 90° in the opposite direction to return to its original state. As the lifting transmission column 314 presses down the lifting and regulating slide 309, the adjustment support platform 301 moves down to the inside of the adjustment switching port 104.

[0058] Throughout this specification, references to terms such as "one embodiment," "example," or "specific example" indicate that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0059] The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the present invention to the specific embodiments described. Obviously, many modifications and variations are possible based on the content of this specification. These embodiments are selected and described in detail in this specification to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A laser scribing method for photovoltaic cell processing, characterized in that: The steps include: S01, placing the photovoltaic cell to be diced with its back side facing upward on the first hollow dicing table (101) of the switching support assembly (1), and horizontally sliding the positioning and limiting plate (304) on the first hollow dicing table (101) until the positioning and limiting plate (304) is in contact with the side of the photovoltaic cell, thereby limiting the position of the photovoltaic cell; S02, controlling the switching transmission belt (110) to move cyclically, so that the first hollow scribing table (101) moves horizontally to just below the laser scribing assembly (2), and the second hollow scribing table (102) on the switching support assembly (1) moves downward and then upward during the horizontal movement until it moves to the loading position; S03, controlling the two driving racks (207) to move synchronously in opposite directions, and the transmission gear (210) drives the driving gear (211) to rotate, so that the horizontal support frame (212) drives the laser scribing head (214) to move horizontally to perform a scribing operation on the photovoltaic cell, and controlling the horizontal movement distance of the two transmission vertical plates (204), repeating the operation to perform the scribing operation until all scribing operations in the same direction are completed; S04, controlling the first transmission wheel (312) and the second transmission wheel (315) to rotate synchronously, and driving the lifting and regulating slideway (309) to move up and down through the lifting transmission column (314), during which the direction adjustment transmission column (316) rotates, and when the direction adjustment transmission column (316) slides along the corresponding inclined direction adjustment slide groove (317) and disengages, the direction adjustment support platform (301) completes the rotation of 90°, and then the laser scribing head (214) reciprocates to perform scribing operation in another direction; after the direction adjustment support platform (301) rotates 90°, the electromagnet (303) is re-energized, and the photovoltaic cell is re-positioned through the reset spring (306) and the positioning limit plate (304) to ensure the scribing accuracy; S05, during the scribing operation of the photovoltaic cell on the first hollow scribing stage (101), the second hollow scribing stage (102) defines the position of the photovoltaic cell, and after the scribing of the photovoltaic cell on the first hollow scribing stage (101) is completed, the first hollow scribing stage (101) and the second hollow scribing stage (102) are alternated, and the above operation is repeated; The switching support assembly (1) includes a switching support frame (103), the first hollow scribing table (101) and the second hollow scribing table (102) are both slidably arranged inside the switching support frame (103), and the upper surfaces of the first hollow scribing table (101) and the second hollow scribing table (102) are both provided with a switching opening (104); a regulating support plate (105) is fixedly connected to the bottom of the switching support frame (103), and a switching regulating slide (106) is provided on the surface of the regulating support plate (105), and the switching regulating slide (106) is composed of a first upper horizontal slide, a first inclined slide, a lower horizontal slide, a second inclined slide and a second upper horizontal slide connected in sequence; The lower surface of the second hollow scribing table (102) is symmetrically fixedly connected with two guide support uprights (107), one end of the two guide support uprights (107) is fixedly connected with a support transmission block, a transmission cross column (108) is fixedly connected between the two support transmission blocks, the transmission cross column (108) is slidably matched with the switching control slide (106), and a switching transmission plate (109) is slidably provided between the two guide support uprights (107); The switching support frame (103) is symmetrically connected to a plurality of driving wheels on the two inner side walls, and the driving wheels are connected by a switching transmission belt (110). The first hollow scribing table (101) is fixedly connected to the first transmission frame (111) on the two opposite side surfaces, and the first transmission frame (111) is fixedly connected to the corresponding switching transmission belt (110). The switching transmission plate (109) is fixedly connected to the second transmission frame (112) on the two opposite side surfaces, and the second transmission frame (112) is fixedly connected to the corresponding switching transmission belt (110).

2. A laser scribing method for photovoltaic cell processing according to claim 1, characterized in that: The upper surface of the switching support frame (103) is fixedly connected to a laser scribing assembly (2), and the laser scribing assembly (2) includes a scribing support frame (201) fixedly connected to the upper surface of the switching support frame (103). A guide slot (202) is provided on the top of the scribing support frame (201), and a driving screw (203) is rotatably connected between two inner side walls of the guide slot (202). Two transmission vertical plates (204) are symmetrically slidably provided inside the guide slot (202), and the transmission vertical plates (204) are threadedly engaged with the driving screw (203); Two transmission screws (205) are symmetrically rotatably connected between the two transmission vertical plates (204), and two adjustment gears (206) are symmetrically rotatably provided on one side of one of the transmission vertical plates (204). The two adjustment gears (206) are meshed with each other, and the adjustment gears (206) are fixedly connected to the corresponding transmission screws (205). A transmission adjustment bar is threadedly engaged with the side surface of the transmission screw (205), and the transmission adjustment bar is slidably engaged with the top of the dicing support frame (201) through an extension block, and a driving rack (207) is fixedly connected to one side of the transmission adjustment bar.

3. A laser scribing method for photovoltaic cell processing according to claim 2, characterized in that: Two guide slide bars (208) are symmetrically fixedly connected between the two transmission vertical plates (204), a slicing support frame (209) is slidably arranged between the two guide slide bars (208), a transmission gear (210) is rotatably connected to the upper surface of the slicing support frame (209), and the transmission gear (210) is located between the two driving racks (207), and the two driving racks (207) and the transmission gear (210) are meshed with each other; A driving gear (211) is rotatably provided at the top of the dicing support frame (209), and the driving gear (211) is fixedly connected to the transmission gear (210). A horizontal supporting frame (212) is slidably provided between the two opposite side surfaces of the dicing support frame (209), and a transmission rack (213) is fixedly connected to an inner side wall of the horizontal supporting frame (212). The driving gear (211) and the transmission rack (213) are meshed with each other, and a laser dicing head (214) is fixedly connected to the lower surface of the horizontal supporting frame (212).

4. The laser scribing method for photovoltaic cell processing according to claim 3, characterized in that: The first hollow scribing table (101) and the second hollow scribing table (102) are both provided with a scribing direction adjustment component (3), the scribing direction adjustment component (3) comprising a direction adjustment support table (301) that is slidably engaged with the direction adjustment switch port (104), a plurality of limiting slide grooves (302) are symmetrically provided on the upper surface of the direction adjustment support table (301), and the interval between two adjacent limiting slide grooves (302) is 90°; An electromagnet (303) is fixedly connected to an inner side wall of the limiting slide (302), a positioning limiting plate (304) is slidably provided inside the limiting slide (302), a magnetic attraction plate (305) is fixedly connected to a side of the positioning limiting plate (304), and a return spring (306) is fixedly connected between the other inner side wall of the limiting slide (302) and the positioning limiting plate (304).

5. The laser scribing method for photovoltaic cell processing according to claim 4, characterized in that: The lower surface of the adjustment support platform (301) is fixedly connected to a lifting support column, and two limit bars (307) are symmetrically fixedly connected to the side surfaces of the lifting support column. The lower surface of the lifting support column is rotatably connected to a lifting guide plate (308), and one side of the lifting guide plate (308) is fixedly connected to a lifting control slide (309), and the lifting control slide (309) is composed of a section of an arc slide and horizontal slides fixedly connected to both ends of the arc slide. The bottom of the first hollow scribing table (101) and the second hollow scribing table (102) are fixedly connected with a lifting guide slide (310), the lifting guide plate (308) and the lifting guide slide (310) are slidably matched, and the first hollow scribing table (101) and the second hollow scribing table (102) are fixedly connected with elastic elements between the corresponding lifting guide plates (308), the bottom of the first hollow scribing table (101) and the second hollow scribing table (102) are fixedly connected with a support frame, one side of the support frame is rotatably connected with an adjustment drive ring (311), and the adjustment drive ring (311) is slidably matched with two limit bars (307) and the lifting support column.

6. The laser scribing method for photovoltaic cell processing according to claim 5, characterized in that: The dicing direction adjustment component (3) also includes a first extension support plate and a second extension support plate fixedly connected to the bottom of the first hollow dicing table (101) and the second hollow dicing table (102), one side of the first extension support plate is rotatably connected to the first transmission wheel (312), and the other side of the first extension support plate is rotatably provided with a transmission connecting rod (313), one end of the transmission connecting rod (313) is fixedly connected to the first transmission wheel (312) through a first rotating shaft, and one side of the transmission connecting rod (313) is fixedly connected to a lifting transmission column (314), and the lifting transmission column (314) is slidably engaged with the lifting and regulating slideway (309).

7. The laser scribing method for photovoltaic cell processing according to claim 6, characterized in that: A second transmission wheel (315) is rotatably connected to one side of the second extension support plate, the first transmission wheel (312) and the second transmission wheel (315) are connected via an adjustable transmission belt, and a transmission disc is rotatably provided on the other side of the second extension support plate, and two directional adjustment transmission columns (316) are symmetrically fixedly connected to the circumferential side of the transmission disc; Two inclined direction-adjusting slots (317) are symmetrically arranged on the peripheral side surface of the direction-adjusting drive ring (311), and the inclined direction-adjusting slots (317) are arranged between 90° areas on the peripheral side surface of the direction-adjusting drive ring (311). The two inclined direction-adjusting slots (317) are staggered with each other, and the direction-adjusting transmission column (316) is slidably matched with the corresponding inclined direction-adjusting slots (317).

Images