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CN-117341077-B - Automatic blanking equipment for sliced silicon crystal bar and use method thereof

CN117341077BCN 117341077 BCN117341077 BCN 117341077BCN-117341077-B

Abstract

The invention discloses automatic blanking equipment after slicing a silicon crystal bar and a using method thereof, and belongs to the technical field of blanking after slicing the silicon crystal bar, wherein a material seat is fixedly arranged on the silicon crystal bar; the first positioning structure, the second positioning structure and the third positioning structure are connected with the frame through the lifting platform, the discharging assembly comprises a discharging conveying line and a storage bin for storing silicon crystal bars, and the discharging conveying line conveys the storage bin to a discharging position. The positioning assembly for the silicon crystal bar is formed by combining the first positioning structure, the second positioning structure and the third positioning structure, so that the silicon crystal bar can be accurately and stably positioned, the positioning precision is high, the precision deviation cannot occur, and the wafer is effectively prevented from being damaged.

Inventors

  • SONG DAPENG
  • FU JINQING
  • BO HONGLIN
  • GU WEIGUO

Assignees

  • 曼弗莱德智能制造(江苏)有限公司

Dates

Publication Date
20260505
Application Date
20231012

Claims (9)

  1. 1. An automatic blanking device after slicing a silicon crystal bar, wherein a material seat (110) is fixedly arranged on the silicon crystal bar (100), the blanking device comprises a frame (10), a positioning component (20) for positioning the silicon crystal bar (100) and a blanking component (30) for storing the silicon crystal bar (100), the positioning component (20) is positioned above the blanking component (30) and can move along the length direction of the frame (10) to put the silicon crystal bar (100) into the blanking component (30), The positioning assembly (20) comprises a first positioning structure (21), a second positioning structure (22) and a third positioning structure (23); The first positioning structure (21) comprises a first driver (211) and hook plates (212) driven by the first driver (211), wherein the number of the hook plates (212) is two and is matched with two sides of the material seat (110); The second positioning structure (22) comprises a second driver (221) and a positioning block (222) positioned at the driving end of the second driver (221), and the positioning block (222) is used for positioning the end part of the material seat (110); The third positioning structure (23) comprises a third driver (231) and a pushing block (232) positioned at the driving end of the third driver (231), and the pushing block (232) pushes the material seat (110) to move along the length direction of the material seat; the first positioning structure (21), the second positioning structure (22) and the third positioning structure (23) are all connected with the frame (10) through a lifting platform (40); the discharging assembly (30) comprises a discharging conveying line (31) and a bin (32) for storing the silicon crystal bars (100), and the discharging conveying line (31) is used for conveying the bin (32) to a discharging position; be provided with compressible bolster (321) in feed bin (32), bolster (321) quantity is two sets of just is located inside both sides of feed bin (32), be provided with multiunit switching subassembly (80) on frame (10), switching subassembly (80) include first cylinder (81), be located second cylinder (82) and be located of first cylinder (81) drive end briquetting (83) of second cylinder (82), briquetting (83) with bolster (321) end cooperation, first cylinder (81) drive second cylinder (82), compress tightly bolster (321) by briquetting (83), make the blowing space in feed bin (32) increases.
  2. 2. The automatic blanking device after slicing of silicon crystal rods according to claim 1, wherein a lifting driving module (11) is arranged on the frame (10), and the lifting driving module (11) drives the lifting platform (40) to lift.
  3. 3. An automatic blanking apparatus after slicing a silicon ingot according to claim 1 or 2, wherein the first positioning structure (21), the second positioning structure (22) and the third positioning structure (23) are all mounted on the lifting platform (40), and the material seat (110) is located below the lifting platform (40).
  4. 4. The automatic blanking device after slicing a silicon crystal bar according to claim 1, wherein the hook plate (212) is an L-shaped structure, a protruding structure (1101) is arranged on the side surface of the material seat (110), and the hook plate (212) is matched with the protruding structure (1101) to position the material seat (110).
  5. 5. The automatic blanking device after slicing a silicon ingot according to claim 4, wherein the third driver (231) is a turnover cylinder, the pushing block (232) pushes the protruding structure (1101) to position the material seat (110), the pushing block (232) comprises a turnover frame (2321) and a turnover attaching block (2322), the turnover frame (2321) is of a bending structure, and the turnover attaching block (2322) is attached to the protruding structure (1101) after being turned.
  6. 6. The automatic blanking device after slicing a silicon crystal bar according to claim 1, wherein the positioning block (222) is an L-shaped sheet metal part, a positioning groove (2221) is formed in the positioning block (222), an end protrusion (1102) is arranged at the end of the material seat (110), and the positioning groove (2221) is matched with the end protrusion (1102) to position the material seat (110).
  7. 7. The automatic blanking device after slicing of silicon crystal rods according to claim 1, characterized in that a limiting structure (50) is arranged at the beginning end and the tail end of the blanking conveying line (31), the limiting structure (50) comprises a limiting cylinder (51) and a limiting roller (52) limiting the end of the storage bin (32), the limiting roller (52) is connected with the limiting cylinder (51) through a telescopic frame (60), and a collecting tank (70) is arranged below the blanking conveying line (31).
  8. 8. The automatic blanking device after slicing of silicon crystal rods according to claim 7, wherein a reset torsion spring (90) is arranged on the bin (32), the reset torsion spring (90) is connected with the end portion of the buffer member (321), and when the opening and closing assembly (80) is reset, the buffer member (321) resets under the action of the reset torsion spring (90).
  9. 9. The application method of the automatic blanking equipment after slicing the silicon crystal bar is applied to the automatic blanking equipment after slicing the silicon crystal bar, and is characterized by comprising the following steps of: S1, transferring the cut silicon crystal bar (100) to the lower part of a lifting platform (40) under the action of a robot, and coarsely positioning two sides of a material seat (110) by a hook plate (212) of a first positioning structure (21); s2, a second driver (221) of the second positioning structure (22) drives the positioning block (222) to move, so that the positioning block (222) is matched with the end part of the material seat (110) to position the end part of the material seat (110); S3, a third driver (231) of the third positioning structure (23) drives the pushing block (232) to rotate, and the pushing block (232) pushes the material seat (110) to move in the rotating process, so that fine positioning of the material seat (110) is completed; S4, conveying the bin (32) to a discharging position through a discharging conveying line (31), driving a limiting roller (52) to move by a limiting cylinder (51) of a limiting structure (50), rolling and limiting the two ends of the bin (32) by the limiting roller (52), and adjusting the position of the bin (32); S5, a second air cylinder (82) of the opening and closing assembly (80) drives a pressing block (83) to move, so that the pressing block (83) is aligned with the end part of the buffer piece (321), and a first air cylinder (81) drives the second air cylinder (82) to move, so that the buffer piece (321) is pressed under the action of the pressing block (83); s6, the lifting driving module (11) drives the lifting platform (40) to descend until the silicon crystal bar (100) falls into the storage bin (32); S7, resetting the lifting driving module (11) and the opening and closing assembly (80), and clamping the silicon crystal rod (100) from two sides of the silicon crystal rod (100) by the buffer piece (321) under the resetting action of the resetting torsion spring (90).

Description

Automatic blanking equipment for sliced silicon crystal bar and use method thereof Technical Field The invention belongs to the technical field of blanking after slicing a silicon crystal bar, and particularly relates to automatic blanking equipment after slicing the silicon crystal bar and a using method thereof. Background Semiconductor photovoltaic technology refers to a technology for converting light energy into electric energy, and the main principle of the technology is to utilize the absorption of light rays and the movement of electrons by a photovoltaic element to convert the electric energy. The solar cell is mainly divided into three categories of silicon crystal photovoltaics, thin film solar cells and polycrystalline silicon photovoltaics. Silicon crystal photovoltaic technology is the most widely used photovoltaic technology at present, and a battery of the silicon crystal photovoltaic technology adopts silicon as a main material and is made of monocrystalline silicon or polycrystalline silicon. Silicon crystal photovoltaics have the advantages of high efficiency, stability and reliability, but have high production cost. The materials adopted by the thin film solar cell mainly comprise amorphous silicon, copper indium gallium selenide, organic materials and the like, and have the characteristics of light weight, low production cost, strong flexibility and the like, but the efficiency is lower than that of silicon crystal photovoltaics. The polycrystalline silicon photovoltaic adopts high-purity silicon microcrystal crystal which can be compared with a common silicon crystal battery, but the manufacturing process is more advanced than the silicon crystal photovoltaic technology, and the silicon crystal bar belongs to one of the common silicon crystals. After slicing operation is carried out on a silicon crystal bar, the shape of the original crystal bar is always kept, blanking treatment is needed to be carried out on the silicon crystal bar, in Chinese patent application number 202111309702.4 and the name of a blanking tool for a cut wafer, the structure of the whole mechanism of the existing blanking tool is complex, the failure rate is high, in addition, in the process that the cut wafer is put down to a material frame, cutting liquid drops splash, equipment can be polluted, misjudgment is caused by the equipment, an inductor is caused, and an alarm is frequent, the silicon crystal bar slicing machine comprises a transfer machine, the transfer machine comprises a frame assembly, a material frame positioning assembly is arranged on the side wall of the frame assembly, a first turning plate flattening assembly and a second turning plate flattening assembly are arranged on the upper portion of the side wall of the frame assembly, and a first pressing rod opening assembly is arranged on one side of the first turning plate flattening assembly. The invention greatly simplifies the complexity of the working procedure in the blanking process, improves the blanking efficiency, simplifies the complexity of the structure, reduces the failure rate and reduces the equipment pollution risk caused by splashing of cutting liquid drops, namely, the blanking tool after the original slicing utilizes a turnover plate flattening component, a pressing rod opening component, a positioning push rod cylinder and other mechanisms, the structure of a used material frame is complex, the positioning precision requirement on a robot, a gripper and the material frame before matching is high in the process of placing the sliced wafer into the material frame, if one part has deviation, the wafer is broken and damaged, and the side edge is free of a shielding plate and the bottom is free of a cutting liquid collecting tank, so that the cutting liquid is splashed everywhere in the process of placing the workpiece, equipment is easy to pollute and cause sensor failure, and the failure rate is frequent. Disclosure of Invention The invention overcomes the defects of the prior art, and provides automatic blanking equipment for silicon crystal bars after slicing and a use method thereof, so as to solve the problems in the prior art. The automatic blanking equipment comprises a frame, a positioning component for positioning the silicon crystal rod and a blanking component for storing the silicon crystal rod, wherein the positioning component is positioned above the blanking component and can move along the length direction of the frame, and the silicon crystal rod is placed in the blanking component; the positioning assembly comprises a first positioning structure, a second positioning structure and a third positioning structure; the first positioning structure comprises a first driver and hook plates driven by the first driver, wherein the number of the hook plates is two and the hook plates are matched with two sides of the material seat; The second positioning structure comprises a second driver and a positioning block position