A laser scribing machine for photovoltaic cell production line

By designing a flipping and cutting mechanism, the problem of offset during the cutting of photovoltaic panels was solved, achieving stable clamping and precise cutting of photovoltaic panels, thus improving the quality and efficiency of photovoltaic cell production.

CN122142553APending Publication Date: 2026-06-05华能(嘉峪关)新能源有限公司 +1

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
华能(嘉峪关)新能源有限公司
Filing Date
2024-11-28
Publication Date
2026-06-05

AI Technical Summary

Technical Problem

In the process of cutting photovoltaic panels, some photovoltaic panels are prone to tilting upwards during the existing laser scribing machine cutting process, which can cause damage and affect quality and efficiency.

Method used

A laser scribing machine including a flipping mechanism and a cutting mechanism was designed. Through the cooperation of an electric push rod, a lead screw and a rotating toothed plate, the photovoltaic panel is automatically flipped and stably clamped to avoid cutting deviation. Precise cutting is achieved through a detection probe and a hydraulic cylinder.

Benefits of technology

This effectively avoids misalignment and damage to photovoltaic panels during the cutting process, ensuring cutting quality and efficiency, and improving the stability of photovoltaic cell production.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application discloses a kind of laser dicing machines for photovoltaic cell production line, it is related to photovoltaic cell production technical field, including conveying mechanism, still including turnover mechanism and cutting mechanism, the turnover mechanism includes two rotating toothed plates, two the rotating toothed plate is respectively arranged in conveying mechanism one end both sides, two the rotating toothed plate opposite side is all installed with mounting plate, two the mounting plate inner wall is all equipped with first screw rod, two the first screw rod outside is all sleeved with movable seat, two the movable seat opposite side is all installed with electric push rod, two the electric push rod output end is all installed with clamping plate.The application is worked by electric push rod, so that two clamping plates can be clamped photovoltaic cell board, the height of clamping plate can be adjusted by first screw rod rotation, rotating toothed plate rotation can drive photovoltaic cell board to overturn, so that cutting mechanism can stably cut photovoltaic cell board, can avoid deviation in cutting process.
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Description

Technical Field

[0001] This invention relates to the field of photovoltaic cell manufacturing technology, and specifically to a laser scribing machine for a photovoltaic cell production line. Background Technology

[0002] Laser scribing machines in photovoltaic cell production lines are primarily used for cutting and scribing solar panels and thin metal sheets. These machines utilize a high-energy laser beam to irradiate the workpiece surface, causing localized melting and vaporization of the irradiated area, thus achieving the scribing purpose. This equipment plays a crucial role in the photovoltaic industry, cutting solar cells into individual electrical chips to prepare for subsequent production steps. The application of laser scribing machines not only improves production efficiency but also ensures product quality, making them an indispensable piece of equipment in photovoltaic cell production lines. With technological advancements, laser scribing machines have gradually demonstrated their unique advantages, especially in precision cutting and scribing. Compared to traditional methods, laser scribing machines can better meet the modern photovoltaic industry's demands for efficient and high-precision processing.

[0003] The existing technology has the following shortcomings: When the existing laser scribing machine cuts and scribes photovoltaic panels, some photovoltaic panels tend to be upright during the transportation process. When cutting them directly, they are prone to deviation, which will damage the photovoltaic panels and affect their quality and production efficiency. Summary of the Invention

[0004] The purpose of this invention is to provide a laser scribing machine for a photovoltaic cell production line. The machine uses an electric push rod to enable two clamping plates to hold the photovoltaic cell panel. The rotation of the first lead screw can adjust the height of the clamping plates, and the rotation of the toothed plate can cause the photovoltaic cell panel to flip. This allows the cutting mechanism to stably cut the photovoltaic cell panel and avoid deviation during the cutting process, thus solving the above-mentioned shortcomings in the technology.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a laser scribing machine for a photovoltaic cell production line, comprising a conveying mechanism, and further comprising:

[0006] A flipping mechanism, located at one end of the conveying mechanism, is used to flip the photovoltaic panels.

[0007] The cutting mechanism, located at the other end of the conveying mechanism, is used to cut and dice the photovoltaic panels.

[0008] The flipping mechanism includes two rotating toothed plates, which are respectively disposed on both sides of one end of the conveying mechanism. A mounting plate is fixedly installed on the opposite side of each of the two rotating toothed plates. A first lead screw is provided on the inner wall of each of the two mounting plates. A second motor is provided on the top of each of the two first lead screws. A movable seat is threaded onto the outer side of each of the two first lead screws. An electric push rod is fixedly installed on the opposite side of each of the two movable seats. A clamping plate is fixedly installed on the output end of each of the two electric push rods.

[0009] The cutting mechanism includes a fixed frame, which is located at the top of the conveying mechanism away from the flipping mechanism. A second lead screw is provided on the inner wall of the top of the fixed frame, a third motor is provided on one side of the second lead screw, and a laser generator is threaded onto the outer side of the second lead screw.

[0010] Preferably, the conveying mechanism includes a support frame, a conveying platform is fixedly installed on the top of the support frame, a conveyor belt is provided on the inner side of the conveying platform, and detection probes are fixedly installed on both sides of one end of the conveying platform at the position where the top of the conveyor belt is located.

[0011] Preferably, a control box is fixedly installed on one side of the outer wall of the support frame, and fixing plates are fixedly installed on both sides of the end of the support frame near the control box. Fixing grooves are opened on both sides of the top of the conveying platform away from the detection probe.

[0012] Preferably, a fixed shaft is fixedly installed on the opposite side of each of the two rotating toothed plates, and the outer walls of the two fixed shafts are rotatably connected to the inner walls of the top of the two fixed plates, and the inner walls of the two mounting plates are provided with movable grooves.

[0013] Preferably, the inner walls of the two movable slots are rotatably connected to the adjacent first lead screws, and the inner walls of the two movable slots are movably connected to the outer walls of the two movable seats.

[0014] Preferably, a rotating shaft is rotatably mounted on the bottom of one side of the two fixed plates, a second motor is provided on one side of the rotating shaft, and rotating gears that mesh with the two rotating gear plates are fixedly sleeved on both outer walls of the rotating shaft.

[0015] Preferably, the inner walls of both ends of the bottom of the fixing frame are threaded with connecting bolts, and the two connecting bolts on the same side are threaded to the inner walls of the two ends of the adjacent fixing groove. The inner wall of the top of the fixing frame is provided with an installation groove.

[0016] Preferably, the inner wall of the mounting groove is rotatably connected to the second lead screw, and the inner wall of the mounting groove is movably connected to the outer wall of the laser generator.

[0017] Preferably, hydraulic cylinders are fixedly installed at the bottom of the outer walls on both sides of the fixing frame, and the output ends of the two hydraulic cylinders penetrate the inner wall of the fixing frame and are fixedly installed with limiting plates.

[0018] The technical effects and advantages provided by the present invention in the above technical solution are as follows:

[0019] 1. The detection probe can detect the photovoltaic panels during the conveying process. Then, two electric push rods work to make two clamping plates clamp the photovoltaic panels facing upwards. Then, two first lead screws can adjust the height of the clamping plates, allowing the photovoltaic panels to detach from the conveyor belt. Then, the rotation of the rotating toothed plate can drive the mounting plate and clamping plate to rotate, thereby flipping the photovoltaic panels. This can prevent the photovoltaic panels from shifting due to their facing upwards, avoid damage to the photovoltaic panels by the cutting mechanism, and enable the cutting mechanism to stably cut and slit the flipped photovoltaic panels, ensuring the quality of the photovoltaic panels after cutting and improving the production efficiency of photovoltaic cells.

[0020] 2. The second lead screw is rotated by the operation of the third motor, which can adjust the horizontal position of the laser generator so that it can be easily adjusted according to the size of the photovoltaic panel. At the same time, the operation of the two hydraulic cylinders allows the two limiting plates to clamp and limit the photovoltaic panel to be cut, so that the laser generator can stably cut the photovoltaic panel and improve the cutting efficiency of the photovoltaic panel.

[0021] 3. The movable slot can limit the movement of the movable seat, so that the clamping plate and photovoltaic panel remain stable during height adjustment. The connection between the fixed shaft and the fixed plate keeps the rotating toothed plate stable during rotation, and keeps the photovoltaic panel stable during flipping. At the same time, the mounting slot can limit the movement of the laser generator, so that the laser generator remains stable during horizontal adjustment. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0023] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0024] Figure 2 This is a partial cross-sectional view of the present invention.

[0025] Figure 3 For the present invention Figure 2 Enlarged view of part A.

[0026] Figure 4This is an exploded view of the three-dimensional structure of the conveying mechanism of the present invention.

[0027] Figure 5 This is an exploded view of the three-dimensional structure of the flipping mechanism of the present invention.

[0028] Figure 6 This is an exploded view of the three-dimensional structure of the cutting mechanism of the present invention.

[0029] Explanation of reference numerals in the attached figures:

[0030] 1. Conveying mechanism; 101. Support frame; 102. Conveying platform; 103. Conveyor belt; 104. Detection probe; 105. Control box; 106. Fixing plate; 107. Fixing groove;

[0031] 2. Tilting mechanism; 201. Rotating gear plate; 202. Fixed shaft; 203. Mounting plate; 204. Rotating shaft; 205. First motor; 206. Rotating gear; 207. Movable slot; 208. First lead screw; 209. Second motor; 210. Movable seat; 211. Electric push rod; 212. Clamping plate;

[0032] 3. Cutting mechanism; 301. Fixing frame; 302. Connecting bolt; 303. Mounting slot; 304. Second lead screw; 305. Third motor; 306. Laser generator; 307. Hydraulic cylinder; 308. Limiting plate. Detailed Implementation

[0033] This invention provides, for example Figure 1 The laser scribing machine for a photovoltaic cell production line shown includes a conveying mechanism 1, and further includes:

[0034] The flipping mechanism 2 is located at one end of the conveying mechanism 1 and is used to flip the photovoltaic panels.

[0035] The cutting mechanism 3 is located at the other end of the conveying mechanism 1 and is used to cut and dice the photovoltaic panels.

[0036] To facilitate the flipping of upward-facing photovoltaic panels, such as Figure 1-3 and Figure 5As shown, the flipping mechanism 2 includes two rotating toothed plates 201, which are respectively disposed on both sides of one end of the conveying mechanism 1. Mounting plates 203 are fixedly installed on opposite sides of the two rotating toothed plates 201. First lead screws 208 are provided on the inner walls of both mounting plates 203. Second motors 209 are provided on the tops of both first lead screws 208. Movable seats 210 are threaded onto the outer sides of both first lead screws 208. Electric push rods 211 are fixedly installed on opposite sides of both movable seats 210. Clamping plates 212 are fixedly installed at the output ends of both electric push rods 211. The operation of the electric push rods 211 allows the two clamping plates 212 to clamp and fix the photovoltaic panels. Rotation of the first lead screws 208 adjusts the height of the clamping plates 212, causing the photovoltaic panels to detach from the top of the conveyor belt 103. The rotation of the two rotating toothed plates 201 allows the photovoltaic panels to be flipped.

[0037] To facilitate the cutting and dicing of photovoltaic panels, such as Figure 1-2 and Figure 6 As shown, the cutting mechanism 3 includes a fixed frame 301, which is located at the top of the conveying mechanism 1 away from the flipping mechanism 2. A second lead screw 304 is provided on the inner wall of the top of the fixed frame 301. A third motor 305 is provided on one side of the second lead screw 304. A laser generator 306 is threaded onto the outer side of the second lead screw 304. The operation of the third motor 305 causes the second lead screw 304 to rotate, thereby adjusting the horizontal position of the laser generator 306, so that it can easily cut and diced photovoltaic panels of different sizes.

[0038] To facilitate monitoring of the operating status of the control device, such as... Figure 1-2 As shown in Figure 4, the conveying mechanism 1 includes a support frame 101, a conveying platform 102 fixedly installed on the top of the support frame 101, a conveyor belt 103 provided on the inner side of the conveying platform 102, and detection probes 104 fixedly installed on both sides of one end of the conveying platform 102 at the position of the top of the conveyor belt 103. A control box 105 is fixedly installed on one outer wall of the support frame 101, and fixing plates 106 are fixedly installed on both sides of the end of the support frame 101 near the control box 105. Fixing grooves 107 are opened on both sides of the top of the conveying platform 102 away from the detection probes 104. The control box 105 can control the operation of the device, the conveyor belt 103 can convey the photovoltaic panels, and the detection probes 104 can detect the photovoltaic panels during the conveying process.

[0039] To ensure the photovoltaic panels remain stable during the flipping process, such as Figure 2-5As shown, fixed shafts 202 are fixedly installed on opposite sides of the two rotating toothed plates 201. The outer walls of the two fixed shafts 202 are rotatably connected to the inner walls of the top of the two fixed plates 106. Movable grooves 207 are provided on the inner walls of the two mounting plates 203. The inner walls of the two movable grooves 207 are rotatably connected to the adjacent first lead screws 208. The inner walls of the two movable grooves 207 are movably connected to the outer walls of the two movable seats 210. The movable grooves 207 can limit the movement of the adjacent movable seats 210, so that the clamping plate 212 remains stable during height adjustment. The connection between the fixed shafts 202 and the fixed plates 106 keeps the rotating toothed plates 201 stable during rotation, thereby keeping the photovoltaic panels stable during flipping.

[0040] To provide power for the rotation of photovoltaic panels, such as Figure 2-3 and Figure 5 As shown, a rotating shaft 204 is rotatably mounted on the bottom of one side of the two fixed plates 106 facing each other. A first motor 205 is provided on one side of the rotating shaft 204. Rotating gears 206 that mesh with two rotating toothed plates 201 are fixedly sleeved on both outer walls of the rotating shaft 204. When the first motor 205 works, the rotating shaft 204 rotates. Through the meshing action between the rotating gears 206 and the rotating toothed plates 201, the photovoltaic panel can be rotated.

[0041] To ensure the laser generator 306 remains stable during adjustment, such as Figure 2 , Figure 4 and Figure 6 As shown, connecting bolts 302 are threaded into the inner walls of both ends of the bottom of the fixed frame 301. The two connecting bolts 302 on the same side are threaded to the inner walls of the two ends of the adjacent fixed groove 107. The top inner wall of the fixed frame 301 has an installation groove 303. The inner wall of the installation groove 303 is rotatably connected to the second lead screw 304. The inner wall of the installation groove 303 is movably connected to the outer wall of the laser generator 306. The connecting bolts 302 pass through the inner wall of the fixed frame 301 and are threaded to the inner wall of the fixed groove 107, so that the operator can install and disassemble the cutting mechanism 3. The installation groove 303 can limit the movement of the laser generator 306, so that the laser generator 306 remains stable during the adjustment process.

[0042] To ensure the stability of photovoltaic panels during the cutting and dicing process, such as Figure 2 and Figure 6 As shown, hydraulic cylinders 307 are fixedly installed on the bottom of the outer walls on both sides of the fixing frame 301. The output ends of the two hydraulic cylinders 307 penetrate the inner wall of the fixing frame 301 and are fixedly installed with limiting plates 308. The operation of the hydraulic cylinders 307 can drive the limiting plates 308 to extend or retract, so that the two limiting plates 308 can clamp and limit the photovoltaic panel, so that the photovoltaic panel remains stable during the cutting and dicing process.

[0043] When cutting and dicing photovoltaic panels, the panels are conveyed by conveyor belt 103, and two detection probes 104 detect the panels. When a photovoltaic panel is detected to be facing upwards, and it moves to the inside of the flipping mechanism 2, two electric push rods 211 activate, causing two clamping plates 212 to move relative to each other, clamping the upward-facing photovoltaic panel. Then, two second motors 209 activate, causing two first lead screws 208 to rotate, which in turn causes two movable seats 210 to move upwards on their outer sides. Simultaneously, the movable groove 207 limits the movement of adjacent movable seats 210, ensuring that the clamping plates 212 and the photovoltaic panel... The height adjustment process remains stable, allowing the photovoltaic panel to detach from the top of the conveyor belt 103. Then, the first motor 205 operates, causing the rotating shaft 204 to rotate, which in turn causes the two rotating gears 206 to rotate. Through the meshing of the gears, the two rotating toothed plates 201 rotate, allowing them to rotate within the fixed plate 106 via the fixed shaft 202. This causes the photovoltaic panel to flip. Once the photovoltaic panel has rotated from the bottom to the top, the first lead screw 208 rotates in the opposite direction, causing the clamping plate 212 to move to the top of the conveyor belt 103. Then, the two electric push rods 211 retract, allowing the flipped photovoltaic panel to fall back to the top of the conveyor belt 103 for continued transport.

[0044] After the photovoltaic panel moves to the bottom inner side of the cutting mechanism 3, the two hydraulic cylinders 307 operate, causing the two limiting plates 308 to move relative to each other, thus clamping and limiting the photovoltaic panel. Then, the third motor 305 operates, causing the second lead screw 304 to rotate, allowing the laser generator 306 to move outwards. This allows for adjustment of the laser generator 306's position. Simultaneously, the mounting groove 303 limits the movement of the laser generator 306, ensuring stability during adjustment. Finally, the laser generator 306 cuts and dices the photovoltaic panel. After cutting, the photovoltaic panels are conveyed to the subsequent processing section via conveyor belt 103. The photovoltaic panels can be flipped by the flipping mechanism 2, which can prevent the photovoltaic panels from shifting during the cutting and dicing process, thereby avoiding damage to the photovoltaic panels by the laser. This ensures the quality of the photovoltaic panel cutting and dicing, and improves the cutting and dicing efficiency of the photovoltaic panels. This embodiment specifically solves the problem in the prior art that it is not easy to flip some photovoltaic panels that are facing upwards, which can easily cause damage due to cutting offset during the cutting process, thus affecting the cutting quality and efficiency of the photovoltaic panels.

[0045] The foregoing has only described certain exemplary embodiments of the present invention by way of illustration. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the foregoing drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A laser scribing machine for a photovoltaic cell production line, comprising a conveying mechanism (1), characterized in that, Also includes: A flipping mechanism (2) is located at one end of the conveying mechanism (1) and is used to flip the photovoltaic panels. The cutting mechanism (3) is located at the other end of the conveying mechanism (1) and is used to cut and dice the photovoltaic panel. The flipping mechanism (2) includes two rotating toothed plates (201), which are respectively disposed on both sides of one end of the conveying mechanism (1). A mounting plate (203) is fixedly installed on the opposite side of each of the two rotating toothed plates (201). A first lead screw (208) is provided on the inner wall of each of the two mounting plates (203). A second motor (209) is provided on the top of each of the two first lead screws (208). A movable seat (210) is threaded onto the outer side of each of the two first lead screws (208). An electric push rod (211) is fixedly installed on the opposite side of each of the two movable seats (210). A clamping plate (212) is fixedly installed on the output end of each of the two electric push rods (211). The cutting mechanism (3) includes a fixing frame (301), which is located at the top of the conveying mechanism (1) away from the flipping mechanism (2). A second lead screw (304) is provided on the inner wall of the top of the fixing frame (301), and a third motor (305) is provided on one side of the second lead screw (304). A laser generator (306) is threaded onto the outer side of the second lead screw (304).

2. The laser scribing machine for a photovoltaic cell production line according to claim 1, characterized in that: The conveying mechanism (1) includes a support frame (101), a conveying platform (102) is fixedly installed on the top of the support frame (101), a conveyor belt (103) is provided on the inner side of the conveying platform (102), and detection probes (104) are fixedly installed on both sides of one end of the conveying platform (102) and on the top of the conveyor belt (103).

3. The laser scribing machine for a photovoltaic cell production line according to claim 2, characterized in that: A control box (105) is fixedly installed on one side of the outer wall of the support frame (101). Fixing plates (106) are fixedly installed on both sides of the end of the support frame (101) near the control box (105). Fixing grooves (107) are opened on both sides of the top of the conveying platform (102) away from the detection probe (104).

4. The laser scribing machine for a photovoltaic cell production line according to claim 3, characterized in that: A fixed shaft (202) is fixedly installed on the opposite side of each of the two rotating toothed plates (201). The outer walls of the two fixed shafts (202) are rotatably connected to the inner walls of the top of the two fixed plates (106). The inner walls of the two mounting plates (203) are provided with movable grooves (207).

5. A laser scribing machine for a photovoltaic cell production line according to claim 4, characterized in that: The inner walls of the two movable slots (207) are rotatably connected to the adjacent first lead screw (208), and the inner walls of the two movable slots (207) are movably connected to the outer walls of the two movable seats (210).

6. A laser scribing machine for a photovoltaic cell production line according to claim 3, characterized in that: A rotating shaft (204) is rotatably mounted on the bottom of one side of the two fixed plates (106). A first motor (205) is provided on one side of the rotating shaft (204). Rotating gears (206) that mesh with the two rotating toothed plates (201) are fixedly sleeved on both outer walls of the rotating shaft (204).

7. A laser scribing machine for a photovoltaic cell production line according to claim 3, characterized in that: The inner walls of both ends of the bottom of the fixing frame (301) are threaded with connecting bolts (302). The two connecting bolts (302) on the same side are threaded to the inner walls of both ends of the adjacent fixing groove (107). The inner wall of the top of the fixing frame (301) is provided with an installation groove (303).

8. A laser scribing machine for a photovoltaic cell production line according to claim 7, characterized in that: The inner wall of the mounting groove (303) is rotatably connected to the second lead screw (304), and the inner wall of the mounting groove (303) is movably connected to the outer wall of the laser generator (306).

9. A laser scribing machine for a photovoltaic cell production line according to claim 1, characterized in that: Hydraulic cylinders (307) are fixedly installed on the bottom of the outer walls on both sides of the fixed frame (301). The output ends of the two hydraulic cylinders (307) penetrate the inner wall of the fixed frame (301) and are fixedly installed with limiting plates (308).