Photovoltaic silicon wafer detecting and sorting equipment

Abstract

The invention provides photovoltaic silicon wafer detecting and sorting equipment, and relates to the technical field of photovoltaic silicon wafer production, the photovoltaic silicon wafer detecting and sorting equipment comprises symmetrically arranged concave supporting seats, the concave supporting seats are connected through a conveying mechanism, the middle part of the conveying mechanism is connected with a detecting box, two sides of the detecting box are provided with detecting windows, the detecting windows are internally provided with moving mechanisms, and the moving mechanisms are arranged on the concave supporting seats. The moving mechanism is connected with the sorting table, a sliding rail is arranged on the side face of the sorting table, a detection picking mechanism is connected into the sliding rail, and storage grooves are formed in the two sides of the middle of the detection box. The technical problems that manual removal has misoperation, subsequent silicon wafer manufacturing is affected, and the labor intensity of manual removal is high are solved.

Description

Technical Field

[0001] The present invention mainly relates to the technical field of photovoltaic silicon wafer production, and particularly relates to a photovoltaic silicon wafer detection and sorting device. Background Art

[0002] The detection of surface defects of photovoltaic silicon wafers is to ensure the quality and performance of photovoltaic silicon wafers and improve the efficiency and reliability of photovoltaic cell modules. Defects on the surface of photovoltaic silicon wafers include cracks, flaws, scratches, etc., which may cause power loss of photovoltaic cells or failures during long-term use. When photovoltaic silicon wafers are produced, cracks, flaws, and scratches often appear on the surface of the photovoltaic silicon wafers. After passing through the detection equipment, the computer of the detection equipment will record the defective photovoltaic silicon wafers. After the photovoltaic silicon wafers complete the detection and exit the equipment, the operator will remove the unqualified photovoltaic silicon wafers according to the record of the computer and no longer participate in the subsequent production steps. Currently, the operation of removing and sorting unqualified photovoltaic silicon wafers is generally carried out manually. Since there is no mark on the photovoltaic silicon wafers, there may be misoperations during manual removal, which affects the subsequent silicon wafer production, and the labor intensity of manual removal is also relatively large.

[0003] It should be noted that the above content belongs to the technical cognition scope of the inventor. Due to the vast and complex technical content in this field, the above content of this application does not necessarily constitute the prior art. Summary of the Invention

[0004] 1. Technical problems to be solved by the invention: The present invention provides a photovoltaic silicon wafer detection and sorting device to solve the technical problems existing in the above background art.

[0005] 2. Technical solutions: To achieve the above object, the technical solution provided by the present invention is: a photovoltaic silicon wafer detection and sorting device, including symmetrically arranged concave support seats, which are connected by a conveying mechanism. The middle of the conveying mechanism is connected to a detection box. Detection windows are opened on both sides of the detection box. A moving mechanism is arranged in the detection windows. The moving mechanism is connected to a sorting table. A sliding track is arranged on the side of the sorting table. A detection and picking mechanism is connected in the sliding track. Storage grooves are arranged on both sides of the middle of the detection box. This device is used for conveying, detecting and sorting silicon wafers. During operation, the silicon wafers are placed on the conveying mechanism, and then the silicon wafers move with the conveying mechanism and enter the detection box. When the silicon wafers move to the bottom of the detection and picking mechanism, the conveying stops. The detection and picking mechanism performs detection operations on the silicon wafers at the corresponding positions at the bottom. When defective products with cracks, defects, or scratches on the surface are detected, the defective products are adsorbed. Then the moving mechanism moves the sorting table to the top of the storage groove and places the defective products in the storage groove. Detection and picking mechanisms are arranged on both sides of the detection box of this device. Therefore, two rows of silicon wafers can be detected and picked each time, improving the operation efficiency.

[0006] Further, the conveying mechanism includes rotating rollers arranged at intervals on the concave support seats. Conveyor belts are connected to the rotating rollers in a matching manner. A connecting groove is arranged on one side of the rotating roller, and one end of a transmission belt is respectively connected to the connecting groove. The other end of the transmission belt is connected to a power mechanism.

[0007] Further, dividing strips are arranged at intervals on the conveyor belt. The dividing strips divide the conveyor belt into multiple silicon wafer conveying lines.

[0008] Further, the power mechanism includes a motor base. A driving motor is arranged on the top of the motor base. The driving motor is connected to a driving shaft. Support and limit plates are symmetrically arranged on the driving shaft. Belt connecting shafts are arranged at intervals on the driving shaft. The belt connecting shafts are connected to the transmission belt.

[0009] Further, the moving mechanism includes two groups of L-shaped support bases symmetrically arranged in the detection windows. A first rotating lead screw is arranged on one group of L-shaped support bases, and a first guide rod is arranged on the other group of L-shaped support bases. The first rotating lead screw and the first guide rod are connected to the sorting table.

[0010] Further, a second rotating lead screw and a second guide rod are arranged in the sliding track. The second rotating lead screw and the second guide rod are connected to the detection and picking mechanism.

[0011] Further, the detection and picking mechanism includes a control console. A lifting cylinder is connected to the bottom of the control console. A picking suction cup is connected to the bottom of the lifting cylinder. A visual recognition mechanism is connected to the front of the control console. A visual detector is arranged at the bottom of the visual recognition mechanism.

[0012] Furthermore, there are two of the picking suction cups and the vision detectors.

[0013] Furthermore, the detection box is not provided with a trapezoidal material distribution table. Storage grooves are formed on both sides of the trapezoidal material distribution table. A third rotating lead screw is provided at the top of the trapezoidal material distribution table. The third rotating lead screw is connected to a special-shaped pusher plate. The bottom of the special-shaped pusher plate is slidably connected to the trapezoidal material distribution table. An outlet is opened on one side of the detection box body, and a recycling box is provided at the outlet.

[0014] 3. Beneficial effects: Adopting the technical solution provided by the present invention, compared with the prior art, the following beneficial effects are achieved: The present invention is reasonably designed. This device can perform batch automatic detection and sorting operations on silicon wafers. During operation, the silicon wafers are placed on the conveying mechanism. The conveying mechanism transports the silicon wafers to the bottom of the detection box and then stops conveying. The detection and picking mechanisms on both sides of the detection box first perform visual inspection on the silicon wafers arranged at the bottom. Subsequently, the picking suction cups can take out the defective silicon wafers and send them into the storage grooves. The entire detection process has a high degree of automation. In the same working rhythm, more rejection operations can be completed, and both the rejection efficiency and accuracy have been greatly improved.

[0015] It should be noted that the structures not introduced in the present invention are the same as the prior art or can be implemented using the prior art since they do not involve the design key points and improvement directions of the present invention, and will not be elaborated here. Description of the drawings

[0016] Figure 1 is a schematic structural diagram of the present invention; Figure 2 is a schematic partial structural diagram of the present invention; Figure 3 is a schematic structural diagram when the top of the detection box of the present invention is opened; Figure 4 is a schematic internal structural diagram of the detection box of the present invention; Figure 5 is a schematic bottom structural diagram of the detection and picking mechanism of the present invention; Figure 6 is a schematic front structural diagram of the present invention.

[0017] Reference numerals: 1. Concave support base; 2. Conveying mechanism; 3. Detection box; 31. Trapezoidal material distribution table; 32. Third rotating lead screw; 33. Special-shaped pushing plate; 34. Discharge port; 35. Recycling box; 4. Detection window; 5. Moving mechanism; 51. L-shaped support base; 52. First rotating lead screw; 53. First guide rod; 6. Sorting table; 7. Sliding track; 71. Second rotating lead screw; 72. Second guide rod; 21. Rotating roller; 22. Conveyor belt; 221. Partition strip; 23. Connecting groove; 24. Driving belt; 25. Power mechanism; 251. Motor base; 252. Driving motor; 253. Driving shaft; 254. Support and limit plate; 255. Belt connecting shaft; 8. Detection and picking mechanism; 81. Console; 82. Lifting cylinder; 83. Picking suction cup; 84. Visual recognition mechanism; 85. Visual detector; 9. Stock storage groove. Detailed implementation manner

[0018] To facilitate the understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings. Several embodiments of the present invention are given in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[0019] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "page", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as a limitation to the present invention.

[0020] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, "a plurality" means two or more unless otherwise specifically defined.

[0021] In the present invention, unless otherwise clearly specified and defined, terms such as "installation", "connection", "linkage", "fixation", "provided with", "disposed at" shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be a direct connection or an indirect connection through an intermediate medium, and it may be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0022] It should be noted that for the structures not introduced in the present invention, since they do not involve the design key points and improvement directions of the present invention, the prior art known to those skilled in the art can be adopted.

[0023] The following describes the specific implementation of the present invention in detail with reference to specific embodiments.

[0024] Referring to the attached Figure 1-6 , a photovoltaic silicon wafer detection and sorting device, includes symmetrically arranged concave support seats 1, the concave support seats 1 are connected by a conveying mechanism 2, a detection box 3 is connected to the middle of the conveying mechanism 2, detection windows 4 are opened on both sides of the detection box 3, a moving mechanism 5 is arranged in the detection windows 4, the moving mechanism 5 is connected to a sorting table 6, a sliding track 7 is arranged on the side of the sorting table 6, a detection and picking mechanism 8 is connected in the sliding track 7, and storage grooves 9 are arranged on both sides of the middle of the detection box 3. This device is used for the conveying, detection and sorting operations of silicon wafers. During work, the silicon wafers are placed on the conveying mechanism 2, and then the silicon wafers move with the conveying mechanism 2 and enter the detection box 3. When the silicon wafers move to the bottom of the detection and picking mechanism 8, the conveying stops, and the detection and picking mechanism 8 performs detection operations on the silicon wafers at the corresponding positions at the bottom. When defective products with cracks, defects, or scratches on the surface are detected, the defective products are adsorbed, and then the moving mechanism 5 moves the sorting table 6 to the top of the storage groove 9 and places the defective products in the storage groove 9. Detection and picking mechanisms 8 are arranged on both sides of the detection box 3 of this device, so two rows of silicon wafers can be detected and picked each time, improving the operation efficiency.

[0025] The conveying mechanism 2 includes rotating rollers 21 arranged at intervals on the concave support seats 1, conveying belts 22 are connected to the rotating rollers 21 in a matching manner, a connecting groove 23 is arranged on one side of the rotating roller 21, one end of a transmission belt 24 is respectively connected to the connecting groove 23, and the other end of the transmission belt 24 is connected to a power mechanism 25. Silicon wafers are placed on the conveying belts 22 for detection operations. During work, the power mechanism 25 drives the transmission belt 24 to rotate, thereby driving the corresponding rotating roller 21 to rotate. When the rotating roller 21 rotates, it will drive the conveying belt 22 to rotate, thereby conveying the silicon wafers backward. After each conveying of a preset distance, it waits for the detection and sorting operations.

[0026] The conveying belt 22 is provided with partition strips 221 at intervals. The partition strips 221 divide the conveying belt 22 into multiple silicon wafer conveying lines. Silicon wafers are placed at intervals on each silicon wafer conveying line waiting to be detected. The distance between the partition strips 221 can just accommodate a silicon wafer, so that the silicon wafer is placed at a preset position, facilitating the conveying and detection operations of the silicon wafer.

[0027] The power mechanism 25 includes a motor base 251. A driving motor 252 is provided on the top of the motor base 251. The driving motor 252 is connected to a driving shaft 253. Support and limit plates 254 are symmetrically provided on the driving shaft 253. Belt connecting shafts 255 are provided on the driving shaft 253 at intervals. The belt connecting shafts 255 are connected to the transmission belt 24. When the driving motor 252 operates, it will drive the driving shaft 253 to rotate on the support and limit plates 254, and then drive the belt connecting shafts 255 and the conveying belt 22 to rotate, providing power for the conveying mechanism 2.

[0028] The moving mechanism 5 includes two groups of L-shaped support bases 51 symmetrically arranged at the detection window 4. A first rotating lead screw 52 is provided on one group of L-shaped support bases 51, and a first guide rod 53 is provided on the other group of L-shaped support bases 51. The first rotating lead screw 52 and the first guide rod 53 are connected to the sorting table 6. When the first rotating lead screw 52 rotates, it will drive the sorting table 6 to move along the first guide rod 53 and the first rotating lead screw 52. When the sorting table 6 picks up defective products, the first rotating lead screw 52 moves the sorting tables 6 on both sides towards the storage groove 9 in the middle. Subsequently, the sorting table 6 drops the defective products down into the storage groove 9. After the defective products fall, the first rotating lead screw 52 rotates in the reverse direction to reset the sorting tables 6 on both sides.

[0029] A second rotating lead screw 71 and a second guide rod 72 are provided in the sliding track 7. The second rotating lead screw 71 and the second guide rod 72 are connected to the detection and picking mechanism 8. When the second rotating lead screw 71 rotates, it will drive the detection and picking mechanism 8 to slide in the sliding track 7 on the side. Since the silicon wafers at the bottom of the detection and picking mechanism 8 are placed side by side, the detection and picking mechanism 8 performs the detection and sorting operations on the silicon wafers one by one under the action of the second rotating lead screw 71.

[0030] The detection and picking mechanism 8 includes a control console 81. The bottom of the control console 81 is connected to a lifting cylinder 82. The bottom of the lifting cylinder 82 is connected to a picking suction cup 83. The front of the control console 81 is connected to a vision recognition mechanism 84. A vision detector 85 is provided at the bottom of the vision recognition mechanism 84. When the wafers at the bottom are conveyed to the bottom of the vision recognition mechanism 84, the second rotating lead screw 71 and the second guide rod 72 drive the detection and picking mechanism 8 to move horizontally. At this time, the vision recognition mechanism 84 performs detection operations on the wafers arranged at the bottom. After the detection, if there are defective products, the second rotating lead screw 71 and the second guide rod 72 drive the control console 81 to move to the top of the defective products again. The lifting cylinder 82 drives the picking suction cup 83 to descend to adsorb the defective products, and then rise. Under the cooperation of the first rotating lead screw 52 and the first guide rod 53, the wafers are moved to the top of the storage groove 9 for discharging materials.

[0031] There are two picking suction cups 83 and the vision detectors 85, which improve the detection and adsorption effects.

[0032] The trapezoidal material distribution table 31 is not provided in the detection box 3. The storage grooves 9 are formed on both sides of the trapezoidal material distribution table 31. A third rotating lead screw 32 is provided at the top of the trapezoidal material distribution table 31. The third rotating lead screw 32 is connected to a special-shaped pusher plate 33. The bottom of the special-shaped pusher plate 33 is slidably connected to the trapezoidal material distribution table 31. An outlet 34 is opened on one side of the detection box 3 body. A recycling box 35 is provided at the outlet 34. When there are more defective wafers in the storage groove 9, the wafers need to be sent out in time. Therefore, the special-shaped pusher plate 33 is set to fit the trapezoidal material distribution table 31. When the third rotating lead screw 32 works, it drives the trapezoidal material distribution table 31 to push the defective wafers in the storage groove 9, and the defective wafers are pushed out through the outlet 34 and received by the recycling box 35.

[0033] The above embodiments only represent a certain implementation manner of the present invention. The description is relatively specific and detailed, but it cannot be understood as a limitation to the scope of the patent of the present invention. It should be pointed out that for those of ordinary skill in the art, without departing from the concept of the present invention, several deformations and improvements can still be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention should be subject to the appended claims.

Claims

1. A photovoltaic silicon wafer detection and sorting device, characterized in that: It includes symmetrically arranged concave support seats (1), the concave support seats (1) are connected by a conveying mechanism (2), the middle of the conveying mechanism (2) is connected to a detection box (3), both sides of the detection box (3) are provided with detection windows (4), a moving mechanism (5) is arranged in the detection windows (4), the moving mechanism (5) is connected to a sorting table (6), a sliding track (7) is arranged on the side of the sorting table (6), a detection and picking mechanism (8) is connected in the sliding track (7), and storage grooves (9) are arranged on both sides of the middle of the detection box (3).

2. The photovoltaic silicon wafer detection and sorting device according to claim 1, characterized in that: The conveying mechanism (2) includes rotating rollers (21) arranged at intervals on the concave support seats (1), a conveying belt (22) is connected to the rotating rollers (21) in a matching manner, a connecting groove (23) is arranged on one side of the rotating roller (21), one end of a transmission belt (24) is respectively connected to the connecting groove (23), and the other end of the transmission belt (24) is connected to a power mechanism (25).

3. The photovoltaic silicon wafer detection and sorting device according to claim 2, wherein: Partition bars (221) are arranged at intervals on the conveying belt (22), and the partition bars (221) divide the conveying belt (22) into multiple silicon wafer conveying lines.

4. A photovoltaic silicon wafer detection and sorting device according to claim 2, characterized in that: The power mechanism (25) includes a motor base (251), a driving motor (252) is arranged on the top of the motor base (251), the driving motor (252) is connected to a driving shaft (253), support and limit plates (254) are symmetrically arranged on the driving shaft (253), belt connecting shafts (255) are arranged at intervals on the driving shaft (253), and the belt connecting shafts (255) are connected to the transmission belt (24).

5. A photovoltaic silicon wafer detection and sorting device according to claim 1, characterized in that: The moving mechanism (5) includes two groups of L-shaped support bases (51) symmetrically arranged in the detection windows (4), a first rotating lead screw (52) is arranged on one group of L-shaped support bases (51), a first guide rod (53) is arranged on the other group of L-shaped support bases (51), and the first rotating lead screw (52) and the first guide rod (53) are connected to the sorting table (6).

6. The photovoltaic silicon wafer detection and sorting device according to claim 1, wherein: A second rotating lead screw (71) and a second guide rod (72) are arranged in the sliding track (7), and the second rotating lead screw (71) and the second guide rod (72) are connected to the detection and picking mechanism (8).

7. A photovoltaic silicon wafer detection and sorting device according to claim 6, characterized in that: The detection and picking mechanism (8) includes a control console (81), a lifting cylinder (82) is connected to the bottom of the control console (81), a picking suction cup (83) is connected to the bottom of the lifting cylinder (82), a visual recognition mechanism (84) is connected to the front of the control console (81), and a visual detector (85) is arranged at the bottom of the visual recognition mechanism (84).

8. A photovoltaic silicon wafer detection and sorting device according to claim 7, characterized in that: There are two of the picking suction cups (83) and the visual detectors (85).

9. The photovoltaic silicon wafer detection and sorting device according to claim 7, wherein: The trapezoidal material distribution table (31) is not provided in the detection box (3). The material storage grooves (9) are formed on both sides of the trapezoidal material distribution table (31). A third rotating lead screw (32) is provided at the top of the trapezoidal material distribution table (31). The third rotating lead screw (32) is connected to a special-shaped material pushing plate (33). The bottom of the special-shaped material pushing plate (33) is slidably connected to the trapezoidal material distribution table (31). An outlet (34) is opened on one side of the body of the detection box (3), and a recycling box (35) is provided at the outlet (34).

Images