Photovoltaic silicon wafer cleaning and separating mechanism
The photovoltaic silicon wafer cleaning and separation mechanism, which combines negative pressure adsorption and directional jetting, solves the problems of high silicon wafer damage rate, low separation efficiency, and insufficient cleanliness in existing equipment, achieving efficient and automated silicon wafer separation and cleaning.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 基则曼(苏州)科技有限公司
- Filing Date
- 2025-04-09
- Publication Date
- 2026-07-28
AI Technical Summary
Existing automated silicon wafer separation equipment suffers from high silicon wafer damage rates, low separation efficiency, and insufficient cleanliness. In particular, when silicon wafers are tightly stacked or have surface contamination, traditional separation methods struggle to achieve the desired cleaning effect.
By employing the synergistic effect of a negative pressure generating device and a separation device, high-efficiency separation of photovoltaic silicon wafers is achieved through a negative pressure adsorption zone and directional jet. During the transportation process, high-pressure water jets are used to clean the silicon wafers, ensuring their stability and cleanliness during transport.
It achieves efficient and automated separation and cleaning of photovoltaic silicon wafers, improving separation efficiency and cleanliness, and ensuring the stability of silicon wafers during transportation.
Smart Images
Figure CN224571758U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of photovoltaic silicon wafers, specifically to a photovoltaic silicon wafer cleaning and separation mechanism. Background Technology
[0002] In the photovoltaic industry, the cleanliness and separation efficiency of photovoltaic silicon wafers directly affect the performance and production cost of solar panels. Most existing automated silicon wafer separation equipment uses robotic arms or vibration devices to separate silicon wafers, but these methods often suffer from problems such as high silicon wafer damage rates, low separation efficiency, and insufficient cleanliness. Especially when silicon wafers are tightly stacked or have stains on their surfaces, traditional separation methods struggle to achieve ideal separation and cleaning results. Utility Model Content
[0003] To overcome the above-mentioned shortcomings, the purpose of this utility model is to provide a photovoltaic silicon wafer cleaning and separation mechanism.
[0004] To achieve the above objectives, the technical solution adopted by this utility model includes: a storage rack having a storage cavity for stacking and accommodating photovoltaic silicon wafers, and the side of the storage rack having a discharge port communicating with the storage cavity; a conveyor belt assembly disposed at the discharge port of the storage rack along a preset first direction for receiving and transporting the photovoltaic silicon wafers output from the storage rack; a negative pressure generating device disposed above the interior of the storage cavity for extracting fluid above the stack of photovoltaic silicon wafers in the storage cavity to form a negative pressure adsorption zone; and a separation device disposed on one side of the discharge port of the storage rack, including at least one set of first nozzle units that directionally output fluid toward the side edge of the stack of photovoltaic silicon wafers in the storage cavity, wherein the negative pressure generated by the negative pressure adsorption zone and the directional jet of the first nozzle units work together to form a separation effect between adjacent photovoltaic silicon wafers.
[0005] In the preferred technical solution of the photovoltaic silicon wafer cleaning and separation mechanism described above, the negative pressure generating device is a negative pressure suction component that is at least partially disposed above the inside of the storage chamber. The negative pressure suction component has a receiving cavity inside, and the bottom of the negative pressure suction component has a plurality of negative pressure ports that communicate with the receiving cavity.
[0006] In the preferred embodiment of the photovoltaic silicon wafer cleaning and separation mechanism described above, the separation device further includes a second nozzle unit and a third nozzle unit respectively disposed on both sides of the first nozzle unit, wherein the second nozzle unit and the third nozzle unit are inclined toward the discharge port of the storage rack.
[0007] In the preferred embodiment of the photovoltaic silicon wafer cleaning and separation mechanism described above, an inclined plate is provided on the bottom surface of the storage chamber of the storage rack, and the inclined plate is inclined upward toward the inside of the storage chamber on the side near the conveyor belt assembly.
[0008] In the preferred embodiment of the photovoltaic silicon wafer cleaning and separation mechanism described above, the storage rack has an opening on the side away from the conveyor belt assembly, and a stop bar is provided at the opening of the storage rack.
[0009] In the preferred embodiment of the photovoltaic silicon wafer cleaning and separation mechanism described above, the negative pressure suction member is configured on the conveyor belt assembly, and the angle of the negative pressure suction member on the conveyor belt assembly is adjustable.
[0010] In the preferred embodiment of the photovoltaic silicon wafer cleaning and separation mechanism described above, the first nozzle unit, the second nozzle unit, and the third nozzle unit are all configured on the conveyor belt assembly near the storage rack, and their positions on the conveyor belt assembly are adjustable.
[0011] In the preferred embodiment of the photovoltaic silicon wafer cleaning and separation mechanism described above, the negative pressure suction member is provided with a conveying unit driven by the conveyor belt assembly on the side away from the conveyor belt assembly. The conveying unit is used to receive and convey the photovoltaic silicon wafers attracted by the negative pressure suction member toward the conveyor belt assembly.
[0012] In the preferred embodiment of the photovoltaic silicon wafer cleaning and separation mechanism described above, the conveyor belt assembly is provided with a first nozzle and a second nozzle at the upper and lower positions of the conveying photovoltaic silicon wafer, respectively. The bottom surface of the first nozzle is provided with a plurality of first through holes, and the top surface of the second nozzle is provided with a plurality of second through holes.
[0013] In the preferred embodiment of the photovoltaic silicon wafer cleaning and separation mechanism described above, a stamping component is provided on the upper part of the conveyor belt assembly. The stamping component is capable of spraying water to press the photovoltaic silicon wafers conveyed by the conveyor belt assembly against the conveyor belt assembly.
[0014] The beneficial effects of this invention are that, through the synergistic action of the negative pressure generating device and the separation device, efficient and automated separation of stacked photovoltaic silicon wafers is achieved. The negative pressure generating device draws fluid from above the photovoltaic silicon wafers to form a negative pressure adsorption zone, causing the topmost photovoltaic silicon wafer to be adsorbed and transported to the conveyor belt assembly, greatly improving the separation efficiency. In addition, during the process of transporting the photovoltaic silicon wafers, the conveyor belt assembly uses high-pressure water jets to clean the top and bottom surfaces of the photovoltaic silicon wafers through the first and second nozzles. At the same time, the water jets sprayed from the stamping parts press the silicon wafers against the conveyor belt assembly, ensuring that the silicon wafers remain stable during transport, thereby improving the cleaning effect and ensuring the cleanliness of the photovoltaic silicon wafers. Attached Figure Description
[0015] Figure 1 This is the front view of the present invention;
[0016] Figure 2 The connection relationship between the conveyor belt assembly, the negative pressure generating device, and the separation device. Figure 1 ;
[0017] Figure 3 The connection relationship between the conveyor belt assembly, the negative pressure generating device, and the separation device. Figure 2 ;
[0018] Figure 4 This is a schematic diagram of a storage rack;
[0019] Figure 5 This is a diagram showing the positional relationship between the storage rack and the negative pressure generating device;
[0020] Figure 6 Schematic diagram of a negative pressure generating device Figure 1 ;
[0021] Figure 7 Schematic diagram of a negative pressure generating device Figure 2 ;
[0022] In the figure: 1. Storage rack, 11. Storage chamber, 12. Discharge port, 13. Opening, 14. Baffle, 15. Conveyor belt assembly, 2. Negative pressure generating device, 3. Negative pressure suction component, 31. Negative pressure port, 32. Separation device, 4. First nozzle unit, 41. Second nozzle unit, 42. Third nozzle unit, 43. Driven pulley, 5. First nozzle, 6. Second nozzle, 7. Stamping component, 8. Detailed Implementation
[0023] Preferred embodiments of the present invention will now be described with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are merely illustrative of the technical principles of the present invention and are not intended to limit the scope of protection of the present invention.
[0024] It should be noted that in the description of this utility model, terms such as "upper," "lower," "left," "right," "front," and "rear," which indicate direction or positional relationships, are based on the direction or positional relationships shown in the accompanying drawings. These are used merely for ease of description and do not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0025] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "set," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0026] like Figures 1 to 7As shown, the photovoltaic silicon wafer cleaning and separation mechanism of this utility model includes: a storage rack 1, having a storage cavity 11 for stacking and accommodating photovoltaic silicon wafers, and a discharge port 12 communicating with the storage cavity 11 on the side of the storage rack 1; a conveyor belt assembly 2, disposed at the discharge port 12 of the storage rack 1 along a preset first direction, for receiving and conveying the photovoltaic silicon wafers output from the storage rack 1; a negative pressure generating device 3, disposed above the inside of the storage cavity 11, for extracting fluid above the photovoltaic silicon wafer stack in the storage cavity 11 to form a negative pressure adsorption zone; and a separation device 4, disposed on one side of the discharge port 12 of the storage rack 1, including at least one set of first nozzle units 41 that directionally output fluid toward the side edge of the photovoltaic silicon wafer stack in the storage cavity 11. The negative pressure generated by the negative pressure adsorption zone and the directional jet of the first nozzle units 41 work together to form a separation effect between adjacent photovoltaic silicon wafers.
[0027] See Figures 1 to 7 The conveyor belt assembly 2 includes a frame and a belt conveyor group driven by a servo motor mounted on the frame; the storage rack 1 is arranged at the entrance of the conveyor belt assembly 2 along a first direction, and the discharge port 12 on the side of the storage rack 1 faces the conveyor belt assembly 2; the negative pressure generating device 3 is at least partially arranged in the storage cavity 11 of the storage rack 1, and the negative pressure generating device 3 is located at the upper position in the storage cavity 11, so that the negative pressure generating device 3 draws water flow so that the photovoltaic silicon wafer at the uppermost position in the storage cavity 11 can be adsorbed to the bottom surface of the negative pressure generating device 3 and received and transported by the conveyor belt assembly 2; the separation device 4 is arranged along the first direction on one side of the discharge port 12 of the storage rack 1, and the separation device 4 includes at least a set of first nozzle units 41, which are composed of a plurality of nozzles arranged vertically, or are composed of a plurality of pipes with outlets arranged vertically, and the first nozzle units 41 are connected to an external pump.
[0028] It should be noted that the photovoltaic silicon wafer cleaning and separation mechanism of this application is at least partially immersed in the cleaning water tank; specifically, when cleaning and separating photovoltaic silicon wafers, the stacked photovoltaic silicon wafers are first placed into the storage cavity 11 of the storage rack 1, at which time the photovoltaic silicon wafers are completely immersed in the cleaning water tank. A pump is used to draw water into the first nozzle unit 41, and the water sprayed from the first nozzle unit 41 flows towards the stacked photovoltaic silicon wafers in the storage cavity 11 of the storage rack 1, so that adjacent photovoltaic silicon wafers are agitated and separated. At the same time, the negative pressure generating device 3 draws water from the storage chamber 11 above the stacked photovoltaic silicon wafers, forming a negative pressure adsorption zone in this area. The top photovoltaic silicon wafer is adsorbed to the bottom surface of the negative pressure generating device 3 and is received and transported by the conveyor belt assembly 2. This achieves automated separation of the stacked photovoltaic silicon wafers while effectively cleaning the photovoltaic silicon wafers transported by the conveyor belt assembly 2 in the cleaning water tank. It features high photovoltaic silicon wafer separation efficiency and high photovoltaic silicon wafer cleanliness, and is practical.
[0029] In one or more embodiments, the negative pressure generating device 3 is a negative pressure attracting member 31 that is at least partially disposed above the inside of the storage chamber 11. The negative pressure attracting member 31 has a receiving cavity formed inside, and a plurality of negative pressure ports 32 communicating with the receiving cavity are opened at the bottom of the negative pressure attracting member 31. The negative pressure attracting member 31 is disposed on the conveyor belt assembly 2, and the angle of the negative pressure attracting member 31 on the conveyor belt assembly 2 is adjustable. The negative pressure attracting member 31 has a conveying unit driven by the conveyor belt assembly 2 on the side away from the conveyor belt assembly 2. The conveying unit is used to receive and convey the photovoltaic silicon wafer attracted by the negative pressure attracting member 31 toward the conveyor belt assembly 2.
[0030] See Figure 2 , Figures 5 to 7 The negative pressure suction component 31 is connected to the external pump body; the negative pressure suction component 31 is located in the storage chamber 11 of the storage rack 1 and a conveying unit is installed on the side away from the conveyor belt assembly 2. The conveying unit includes at least driven pulleys 5 that are rotatably arranged on both sides of the negative pressure suction component 31. The driven pulleys 5 extend at least partially out of the bottom surface of the negative pressure suction component 31. The driven pulleys 5 are connected to the pulleys of the conveyor belt assembly 2 through a belt, so that when the transmission belt assembly is working, the driven pulleys 5 located on the negative pressure suction component 31 can rotate synchronously.
[0031] Specifically, when separating the photovoltaic silicon wafers stacked in the storage rack 1, the pump body draws water from the storage chamber 11 above the photovoltaic silicon wafers through the negative pressure port 32 of the negative pressure suction component 31, so that a negative pressure adsorption zone is formed in the storage chamber 11 above the stacked photovoltaic silicon wafers. Under the action of negative pressure attraction, the uppermost photovoltaic silicon wafer in the storage chamber 11 is attracted to the bottom of the negative pressure suction component 31 and pressed against the bottom surface of the driven pulley 5. The driven pulley 5, driven by the conveyor belt assembly 2, can transport the photovoltaic silicon wafers to the conveyor belt assembly 2 in the first direction, so as to realize the individual separation of the stacked photovoltaic silicon wafers. It has the characteristics of high automation, simple structure and convenient operation. In addition, when separating and transporting photovoltaic silicon wafers, the photovoltaic silicon wafers are always in the cleaning water tank. Through this setting, the cleaning effect of the photovoltaic silicon wafers can be further improved.
[0032] In one or more embodiments, the separating device 4 further includes a second nozzle unit 42 and a third nozzle unit 43 respectively disposed on both sides of the first nozzle unit 41. The second nozzle unit 42 and the third nozzle unit 43 are both inclined toward the discharge port 12 of the storage rack 1. The first nozzle unit 41, the second nozzle unit 42 and the third nozzle unit 43 are all disposed on the conveyor belt assembly 2 on the side close to the storage rack 1, and their positions on the conveyor belt assembly 2 are adjustable.
[0033] See Figure 2 , Figure 3Both the second nozzle unit 42 and the third nozzle unit 43 are connected to an external pump body. Under the action of the pump body, the second nozzle unit 42 and the third nozzle unit 43 can spray water. The second nozzle unit 42 and the third nozzle unit 43 are located on both sides of the first nozzle unit 41. The second nozzle unit 42 and the third nozzle unit 43 are inclined towards the discharge port 12 of the storage rack 1. The second nozzle unit 42 and the third nozzle unit 43 can cooperate with the first nozzle unit 41 to make the three sprayed water streams more concentrated and directed towards the stacked photovoltaic silicon wafers. The movement improves the separation effect between adjacent photovoltaic silicon wafers within the storage rack 1. Furthermore, by bolting the first nozzle unit 41, the second nozzle unit 42, and the third nozzle unit 43 onto the conveyor belt assembly 2 on the side near the storage rack 1, the position and angle of the first nozzle unit 41, the second nozzle unit 42, and the third nozzle unit 43 on the conveyor belt assembly 2 can be adjusted, ensuring the adjustment of the water flow direction sprayed by the first nozzle unit 41, the second nozzle unit 42, and the third nozzle unit 43 to meet the usage requirements under different conditions.
[0034] In one or more embodiments, the storage chamber 11 of the storage rack 1 is provided with an inclined plate 15 on the bottom surface of the interior, and the inclined plate 15 is inclined upward toward the interior of the storage chamber 11 on the side near the conveyor belt assembly 2; the storage rack 1 has an opening 13 on the side away from the conveyor belt assembly 2, and a stop bar 14 is provided at the opening 13.
[0035] See Figure 1 , Figure 4 , Figure 5 The inclined plate 15 allows the stacked photovoltaic silicon wafers in the storage chamber 11 to also be in an inclined state, so that there is a certain angle between the water flow sprayed by the first nozzle unit 41, the second nozzle unit 42 and the third nozzle unit 43 and the stacked photovoltaic silicon wafers, which facilitates the water flow to enter between the stacked photovoltaic silicon wafers, making it easier to separate adjacent photovoltaic silicon wafers and improving the separation efficiency of adjacent photovoltaic silicon wafers. By providing an opening 13 communicating with the storage chamber 11 on the side of the storage rack 1 away from the conveyor belt assembly 2, and configuring a baffle 14 in the opening 13, the baffle 14 can limit the stacked photovoltaic silicon wafers while making it easier for the water flow in the cleaning water tank to enter the storage chamber 11 of the storage rack 1. The water flow sprayed by the first nozzle unit 41, the second nozzle unit 42 and the third nozzle unit 43 can also flow out smoothly through the opening 13, ensuring stable water flow and improving the effective separation of stacked photovoltaic silicon wafers in this application.
[0036] In one or more embodiments, the conveyor belt assembly 2 is provided with a first nozzle 6 and a second nozzle 7 at the upper and lower positions of the conveyor belt for transporting photovoltaic silicon wafers, respectively. The bottom surface of the first nozzle 6 has a plurality of first through holes, and the top surface of the second nozzle 7 has a plurality of second through holes. See also... Figure 2The conveyor belt assembly 2 is used to transport photovoltaic silicon wafers. The first nozzle 6 is located above the photovoltaic silicon wafers transported by the conveyor belt assembly 2, and the second nozzle 7 is located below the photovoltaic silicon wafers transported by the conveyor belt assembly 2. High-pressure water flow is provided to the first nozzle 6 and the second nozzle 7 by an external pump, so that the high-pressure water flow sprayed by the first nozzle 6 through the first through hole can act on the top surface of the photovoltaic silicon wafer, and the high-pressure water flow sprayed by the second nozzle 7 through the second through hole can act on the bottom surface of the photovoltaic silicon wafer, further improving the cleaning effect of the photovoltaic silicon wafers and making it practical. In addition, by cleaning the top and bottom surfaces of the photovoltaic silicon wafers simultaneously, the stability of the photovoltaic silicon wafer transport by the conveyor belt assembly 2 can be ensured.
[0037] In one or more embodiments, a stamping member 8 is disposed on the upper part of the conveyor belt assembly 2. The stamping member 8 is capable of spraying water to press the photovoltaic silicon wafers conveyed by the conveyor belt assembly 2 firmly against the conveyor belt assembly 2. See also Figure 1 , Figure 2 Multiple sets of stamping parts 8 can be set on the conveyor belt assembly 2. The stamping parts 8, together with the external pump body, have several nozzles at the bottom. The water jets sprayed out by the stamping parts 8 can act on the top surface of the photovoltaic silicon wafer, so that the photovoltaic silicon wafer is subjected to pressure in the direction of the conveyor belt assembly 2, thereby improving the stability of the conveyor belt assembly 2 in transporting the photovoltaic silicon wafer.
[0038] The above embodiments are only for illustrating the technical concept and features of this utility model. Their purpose is to enable those skilled in the art to understand the content of this utility model and implement it. They cannot be used to limit the protection scope of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be covered within the protection scope of this utility model.
Claims
1. A photovoltaic silicon wafer cleaning and separation mechanism, characterized in that, include: A storage rack has a storage cavity for stacking and accommodating photovoltaic silicon wafers, and the side of the storage rack has a discharge port communicating with the storage cavity; A conveyor belt assembly is disposed at the discharge port of the storage rack along a preset first direction, for receiving and transporting photovoltaic silicon wafers output from the storage rack; A negative pressure generating device is located inside the upper part of the storage chamber and is used to extract the fluid in the storage chamber above the photovoltaic silicon wafer stack to form a negative pressure adsorption zone. The separation device is located on one side of the material outlet of the storage rack and includes at least one set of first nozzle units that directionally output fluid toward the side edge of the photovoltaic silicon wafer stack in the storage chamber. The negative pressure generated by the negative pressure adsorption zone and the directional jet of the first nozzle unit work together to create a separation effect between adjacent photovoltaic silicon wafers.
2. The photovoltaic silicon wafer cleaning and separation mechanism according to claim 1, characterized in that: The negative pressure generating device is a negative pressure suction component that is at least partially disposed above the inside of the storage chamber. The negative pressure suction component has a receiving cavity inside, and the bottom of the negative pressure suction component has a plurality of negative pressure ports that communicate with the receiving cavity.
3. The photovoltaic silicon wafer cleaning and separation mechanism according to claim 1, characterized in that: The separation device further includes a second nozzle unit and a third nozzle unit respectively disposed on both sides of the first nozzle unit, and the second nozzle unit and the third nozzle unit are inclined toward the discharge port of the storage rack.
4. The photovoltaic silicon wafer cleaning and separation mechanism according to claim 1, characterized in that: The storage chamber of the storage rack is provided with an inclined plate on its bottom surface, and the inclined plate is inclined upward toward the inside of the storage chamber on the side near the conveyor belt assembly.
5. The photovoltaic silicon wafer cleaning and separation mechanism according to claim 1, characterized in that: The storage rack has an opening on the side away from the conveyor belt assembly, and a stop bar is provided at the opening.
6. The photovoltaic silicon wafer cleaning and separation mechanism according to claim 2, characterized in that: The negative pressure suction element is disposed on the conveyor belt assembly, and the angle of the negative pressure suction element on the conveyor belt assembly is adjustable.
7. The photovoltaic silicon wafer cleaning and separation mechanism according to claim 3, characterized in that: The first nozzle unit, the second nozzle unit, and the third nozzle unit are all configured on the conveyor belt assembly near the storage rack, and their positions on the conveyor belt assembly are adjustable.
8. The photovoltaic silicon wafer cleaning and separation mechanism according to claim 1, characterized in that: The negative pressure suction member has a conveying unit driven by the conveyor belt assembly on the side away from the conveyor belt assembly. The conveying unit is used to receive and convey the photovoltaic silicon wafers attracted by the negative pressure suction member toward the conveyor belt assembly.
9. The photovoltaic silicon wafer cleaning and separation mechanism according to claim 1, characterized in that: The conveyor belt assembly is provided with a first nozzle and a second nozzle at the upper and lower positions of the photovoltaic silicon wafer conveying, respectively. The bottom surface of the first nozzle is provided with a plurality of first through holes, and the top surface of the second nozzle is provided with a plurality of second through holes.
10. The photovoltaic silicon wafer cleaning and separation mechanism according to claim 1, characterized in that: The upper part of the conveyor belt assembly is provided with a stamping part, which can spray water to press the photovoltaic silicon wafers conveyed by the conveyor belt assembly against the conveyor belt assembly.