Silicon wafer basket pre-dehydration mechanism
By designing a silicon wafer basket pre-dehydration mechanism, which utilizes centrifugal force to spin-dry the solution and automated conveying, the problems of poor dehydration effect and cumbersome operation in existing technologies are solved, and efficient and automated silicon wafer basket dehydration is achieved.
Patent Information
- Application Number
- CN202422019030.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-20
- Publication Date
- 2026-02-03
- Estimated Expiration
- 2034-08-20
AI Technical Summary
The existing pre-dehydration mechanism has poor dehydration effect and is cumbersome to operate, requiring frequent loading and unloading, which affects production efficiency.
A silicon wafer flower basket pre-dehydration mechanism was designed. It uses a telescopic mechanism and a drive motor to drive the dehydration hood to cover the flower basket, spin dry the solution by centrifugal force, and automatically transport the flower basket by a conveyor belt for continuous dehydration. The operation is optimized by integrating infrared sensors and controllers.
It improved the dehydration effect, simplified the operation process, realized the automated continuous dehydration of flower baskets, and improved production efficiency.
Smart Images
Figure CN223872676U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of pre-dehydration mechanisms, and in particular to a silicon wafer basket pre-dehydration mechanism. Background Technology
[0002] In the production of crystalline silicon solar cells, wet processing technology is an indispensable process. Processes such as cleaning the damaged layer on the surface of the cut silicon wafer, pre-cleaning and texturing the cell, etching and polishing all use wet processing technology. After wet processing, the residual solution on the basket needs to be pre-dehydrated by a pre-dehydration mechanism before it can be put into the drying equipment for drying.
[0003] Existing pre-dehydration mechanisms typically involve a robotic arm gripping the flower basket and placing it into the dehydration mechanism. Then, an absorbent cloth or tube removes the residual solution from the basket. However, neither the absorbent cloth nor the tube can completely remove the residual solution, resulting in poor dehydration. Furthermore, after dehydration, the basket must be removed from the dehydration mechanism by the robotic arm before subsequent baskets can be placed back in for further dehydration, making the process cumbersome. Therefore, we propose a silicon wafer flower basket pre-dehydration mechanism. Utility Model Content
[0004] The purpose of this invention is to address the aforementioned shortcomings in the existing technology by proposing a silicon wafer basket pre-dehydration mechanism.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: a silicon wafer basket pre-dehydration mechanism is designed, including a base, two strip mounting plates are symmetrically mounted on the top of the base, and several support shafts are rotatably connected between the two strip mounting plates. The end of the support shaft located at one end of the strip mounting plate is connected to a first drive motor, the first drive motor is fixed on the side of the strip mounting plate, and both ends of the support shaft are connected by a conveyor belt.
[0006] Several grid plates are installed at equal intervals on the outer surfaces of the two conveyor belts. The top of the grid plates is rotatably connected to a support plate via a connecting shaft. A flower basket is provided on the top of the support plate.
[0007] A U-shaped frame is also installed on the top of the base. The U-shaped frame has a movable plate inside, and the top two sides of the movable plate are connected to the U-shaped frame through a telescopic mechanism.
[0008] The bottom of the movable plate is rotatably connected to a rotating shaft, and the top of the rotating shaft is connected to a second drive motor. The second drive motor is fixed to the top of the movable plate. A fixed seat is installed at the bottom of the rotating shaft, and a dehydration hood is installed at the bottom of the fixed seat. When the dehydration hood is moved to the lowest end, the dehydration hood is fitted onto the flower basket, and the top of the inside of the dehydration hood abuts against the top of the flower basket. The bottom of the dehydration hood is fitted with the top of the grid plate with a clearance.
[0009] Preferably, four limiting blocks are installed on the top edge of the support plate, each limiting block is set in an "L" shape, and the side of the limiting block is in contact with the edge of the flower basket.
[0010] Preferably, guide rails are installed on both sides of the interior of the U-shaped frame, and both sides of the movable plate are slidably connected to the guide rails via sliders.
[0011] Preferably, each of the inner sides of the dehydration hood is provided with a strip-shaped limiting plate. Each strip-shaped limiting plate is equipped with several limiting rods on the side near the inner wall of the dehydration hood. One end of each limiting rod slides through the dehydration hood, and a spring is fitted on the side of each limiting rod. One end of the spring is fixed to the strip-shaped limiting plate, and the other end of the spring is fixed to the inner wall of the spring. When the dehydration hood is moved to the lowest end, the side of the strip-shaped limiting plate abuts against the silicon wafer inside the basket.
[0012] Preferably, the two ends of the strip-shaped limiting plate are curved, and the surface of the strip-shaped limiting plate is provided with a buffer pad.
[0013] Preferably, several pairs of support legs are installed on both sides of the bottom of the base, and a shelf is provided at the bottom of the base. The shelf is located below the U-shaped frame, and the edges of the shelf are fixed to the support legs.
[0014] A collection box is provided on the top of the shelf, and a drain trough is provided on the top of the base and below the U-shaped frame. The opening of the collection box is located below the drain trough.
[0015] Preferably, the top opening of the drain tank is wide-mouthed.
[0016] Preferably, a control cabinet is installed on the side of the U-shaped frame, and the controller inside the control cabinet is connected to the telescopic mechanism, the first drive motor and the second drive motor respectively through wires;
[0017] Infrared sensors are installed on both sides inside the U-shaped frame, and the infrared sensors are connected to the controller via wires.
[0018] The design scheme proposed in this utility model has the following beneficial effects in application:
[0019] 1. The dehydration hood can be placed over the flower basket via a telescopic mechanism. Then, the second drive motor drives the dehydration hood and the flower basket to rotate. Under the action of centrifugal force, the residual solution on the flower basket is spun dry, improving the usage effect.
[0020] 2. The first drive motor can drive the conveyor belt to move, thereby automatically transporting the flower basket into the U-shaped frame for dehydration. After dehydrating one flower basket, the next one can be dehydrated directly without loading or unloading, making dehydration convenient and improving the usage effect. Attached Figure Description
[0021] Figure 1 This is a schematic diagram of the structure of this utility model;
[0022] Figure 2 This is a side sectional view of the base structure of this utility model;
[0023] Figure 3 This is a side sectional view of the U-shaped frame structure of this utility model;
[0024] Figure 4 This is a side view of the strip-shaped limiting plate portion of the present invention;
[0025] Figure 5 This is a side view of the grating structure of this utility model.
[0026] In the diagram: 1. Base; 2. Limiting block; 3. Conveyor belt; 4. Guide rail; 5. Dehydration hood; 6. Moving plate; 7. Telescopic mechanism; 8. U-shaped frame; 9. Control cabinet; 10. Grating plate; 11. Support plate; 12. Strip mounting plate; 13. First drive motor; 14. Connecting shaft; 15. Support leg; 16. Collection box; 17. Shelf; 18. Support shaft; 19. Drainage trough; 20. Second drive motor; 21. Rotating shaft; 22. Fixed seat; 23. Strip limiting plate; 24. Limiting rod; 25. Spring; 26. Infrared sensor. Detailed Implementation
[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0028] Reference Figures 1-5 A silicon wafer basket pre-dehydration mechanism includes a base 1, a U-shaped frame 8 installed on the top of the base 1, a control cabinet 9 installed on one side of the U-shaped frame 8, and a controller inside the control cabinet 9, which is either a control motherboard or a PLC logic controller.
[0029] like Figure 1 As shown, two strip mounting plates 12 are symmetrically mounted on the top of the base 1. Several support shafts 18 are rotatably connected between the two strip mounting plates 12. The end of the support shaft 18 located at one end of the strip mounting plate 12 is connected to a first drive motor 13. The first drive motor 13 is fixed on the side of the strip mounting plate 12, and both ends of the support shaft 18 are connected by a conveyor belt 3. The first drive motor 13 is connected to the controller through a wire. In actual use, the first drive motor 13 can drive the conveyor belt 3 to move, thereby conveying the basket containing silicon wafers.
[0030] like Figure 1 and Figure 5As shown, several grid plates 10 are installed at equal intervals on the outer surfaces of the two conveyor belts 3. The top of the grid plate 10 is rotatably connected to a support plate 11 via a connecting shaft 14. The top of the support plate 11 is provided with a basket, on which a basket containing silicon wafers can be placed and then transported by the conveyor belt 3.
[0031] It should be noted that, as Figure 1 and Figure 5 As shown, four limiting blocks 2 are installed on the top edge of the support plate 11. Each limiting block 2 is set in an "L" shape, and the side of the limiting block 2 is in contact with the edge of the flower basket. The limiting block 2 can limit the flower basket so that the flower basket will not tip over during transportation.
[0032] like Figure 1 and Figure 3 As shown, the U-shaped frame 8 has a movable plate 6 inside. The top two sides of the movable plate 6 are connected to the U-shaped frame 8 through a telescopic mechanism 7. The telescopic mechanism 7 is one of a hydraulic rod, an electric push rod, or a cylinder. Infrared sensors 26 are installed on both sides inside the U-shaped frame 8. The infrared sensors 26 and the telescopic mechanism 7 are connected to the controller through wires. In actual use, when the flower basket moves to the preset position inside the U-shaped frame 8, the infrared sensor 26 can transmit the detected signal to the controller. The controller can then turn off the first drive motor 13 and control the telescopic mechanism 7 to move the movable plate 6.
[0033] It should be noted that, as Figure 1 As shown, guide rails 4 are installed on both sides of the interior of the U-shaped frame 8. Both sides of the movable plate 6 are slidably connected to the guide rails 4 through sliders. The guide rails 4 can limit the movement of the movable plate 6, so that the movable plate 6 remains stable.
[0034] like Figure 1 and Figure 3 As shown, a rotating shaft 21 is rotatably connected to the bottom of the movable plate 6, and a second drive motor 20 is connected to the top of the rotating shaft 21. The second drive motor 20 is fixed to the top of the movable plate 6 and is connected to the controller via wires. A fixed base 22 is installed at the bottom of the rotating shaft 21, and a dehydration hood 5 is installed at the bottom of the fixed base 22. When the dehydration hood 5 moves to the lowest end, it fits over the basket, and the top of the inside of the dehydration hood 5 abuts against the top of the basket. The bottom of the dehydration hood 5 is fitted with the top of the grid plate 10 with a clearance. In actual use, when the dehydration hood 5 moves to the lowest end, the controller controls the second drive motor 20 to work. The second drive motor 20 will drive the basket to rotate through the dehydration hood 5. The solution remaining on the basket and silicon wafer can be thrown towards the inner wall of the dehydration hood 5 under the action of centrifugal force, and then flow down along the inner wall under the action of gravity, and finally flow onto the base 1 through the grid plate 10.
[0035] It should be noted that, as Figure 3 and Figure 4 As shown, each inner side of the dehydration hood 5 is provided with a strip-shaped limiting plate 23. Each strip-shaped limiting plate 23 is equipped with several limiting rods 24 on the side near the inner wall of the dehydration hood 5. One end of each limiting rod 24 slides through the dehydration hood 5, and a spring 25 is sleeved on the side of each limiting rod 24. One end of the spring 25 is fixed to the strip-shaped limiting plate 23, and the other end of the spring 25 is fixed to the inner wall of the spring 25. When the dehydration hood 5 is moved to the lowest end, the side of the strip-shaped limiting plate 23 abuts against the silicon wafer inside the basket. In actual use, the silicon wafer on the basket can be fixed by the elastic force of the spring 25, preventing the silicon wafer from being thrown out during the dehydration process.
[0036] It should be noted that, as Figure 1 and Figure 2 As shown, several pairs of support legs 15 are installed on both sides of the bottom of the base 1. A shelf 17 is provided at the bottom of the base 1. The shelf 17 is located below the U-shaped frame 8, and the edges of the shelf 17 are fixed to the support legs 15. A collection box 16 is provided on the top of the shelf 17. A drain trough 19 is provided on the top of the base 1 and below the U-shaped frame 8. The opening of the collection box 16 is located below the drain trough 19. The solution thrown out under the action of centrifugal force will flow through the drain trough 19 and into the collection box 16 below for collection, which is convenient for subsequent processing.
[0037] Specifically, in use, the operator first places the flower basket on the support plate 11 using a robotic arm. Simultaneously, the controller controls the first drive motor 13 to operate, which in turn moves the conveyor belt 3, transporting the flower basket into the U-shaped frame 8. When the flower basket reaches a preset position inside the U-shaped frame 8, the infrared sensor 26 transmits the detected signal to the controller. The controller then shuts off the first drive motor 13 and simultaneously controls the telescopic mechanism 7 to extend. The telescopic mechanism 7 pushes the moving plate 6 downward, causing the dehydration cover 5 to cover the flower basket. Simultaneously, under the elastic force of the spring 25, the side of the strip-shaped limiting plate 23 abuts against the edge of the silicon wafer. Afterward, the controller controls the second drive motor 20 to operate. The second drive motor 20 drives the basket to rotate through the dehydration hood 5. Under the action of centrifugal force, the residual solution on the basket is thrown onto the inner wall of the dehydration hood 5. Under the action of gravity, the solution flows through the grid plate 10 into the drain tank 19. Finally, the solution flows into the collection box 16 for collection, completing the pre-dehydration of the silicon wafer basket. After the second drive motor 20 has been working for a preset time, the controller turns off the second drive motor 20 and controls the telescopic mechanism 7 to retract. The moving plate 6 moves upward to the top, and the dehydration hood 5 is removed from the basket. Then, the controller operates the first drive motor 13 to move the dehydrated basket out of the U-shaped frame 8 and at the same time move the basket to be dehydrated into the U-shaped frame 8 for pre-dehydration.
[0038] Furthermore, such as Figure 4As shown, the two ends of the strip limiting plate 23 are bent, and the surface of the strip limiting plate 23 is provided with a buffer pad. The buffer pad is made of buffer rubber material. This prevents the strip limiting plate 23 from being stuck by the basket when it moves down with the dehydration cover 5, and the buffer pad can also buffer and protect the silicon wafer.
[0039] Furthermore, such as Figure 2 As shown, the top opening of the drain tank 19 is wide, which increases the area of the top opening of the drain tank 19, so that all the solution thrown out during the dehydration process flows from the drain tank 19 to the collection box 16 for collection, avoiding residue.
[0040] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A silicon wafer basket pre-dehydration mechanism, comprising a base (1), characterized in that: Two strip mounting plates (12) are symmetrically mounted on the top of the base (1). Several support shafts (18) are rotatably connected between the two strip mounting plates (12). The end of the support shaft (18) located at one end of the strip mounting plate (12) is connected to a first drive motor (13). The first drive motor (13) is fixed on the side of the strip mounting plate (12), and both ends of the support shaft (18) are connected by a conveyor belt (3). Several grid plates (10) are installed at equal intervals on the outer surfaces of the two conveyor belts (3). The top of the grid plate (10) is rotatably connected to a support plate (11) via a connecting shaft (14). A flower basket is provided on the top of the support plate (11). A U-shaped frame (8) is also installed on the top of the base (1). The U-shaped frame (8) has a movable plate (6) inside. The top two sides of the movable plate (6) are connected to the U-shaped frame (8) through a telescopic mechanism (7). The bottom of the movable plate (6) is rotatably connected to a rotating shaft (21), and the top of the rotating shaft (21) is connected to a second drive motor (20). The second drive motor (20) is fixed on the top of the movable plate (6). A fixed seat (22) is installed at the bottom of the rotating shaft (21), and a dehydration cover (5) is installed at the bottom of the fixed seat (22). When the dehydration cover (5) is moved to the lowest end, the dehydration cover (5) is fitted onto the flower basket, and the top of the inside of the dehydration cover (5) abuts against the top of the flower basket. The bottom of the dehydration cover (5) is clearance-fitted with the top of the grid plate (10).
2. The silicon wafer basket pre-dehydration mechanism according to claim 1, characterized in that: Four limiting blocks (2) are installed on the top edge of the support plate (11). Each limiting block (2) is set in an "L" shape, and the side of the limiting block (2) is in contact with the edge of the flower basket.
3. The silicon wafer basket pre-dehydration mechanism according to claim 1, characterized in that: The U-shaped frame (8) has guide rails (4) installed on both sides inside, and the movable plate (6) is slidably connected to the guide rails (4) on both sides by sliders.
4. The silicon wafer basket pre-dehydration mechanism according to claim 1, characterized in that: The inner side of the dehydration hood (5) is provided with strip-shaped limiting plates (23). Each strip-shaped limiting plate (23) is equipped with several limiting rods (24) on the side near the inner wall of the dehydration hood (5). One end of each limiting rod (24) slides through the dehydration hood (5), and a spring (25) is sleeved on the side of each limiting rod (24). One end of the spring (25) is fixed on the strip-shaped limiting plate (23), and the other end of the spring (25) is fixed on the inner wall of the spring (25). When the dehydration hood (5) is moved to the lowest end, the side of the strip-shaped limiting plate (23) abuts against the silicon wafer inside the basket.
5. The silicon wafer basket pre-dehydration mechanism according to claim 4, characterized in that: The two ends of the strip-shaped limiting plate (23) are curved, and the surface of the strip-shaped limiting plate (23) is provided with a buffer pad.
6. The silicon wafer basket pre-dehydration mechanism according to claim 1, characterized in that: Several pairs of support legs (15) are installed on both sides of the bottom of the base (1). A shelf (17) is provided at the bottom of the base (1). The shelf (17) is located below the U-shaped frame (8), and the edges of the shelf (17) are fixed on the support legs (15). A collection box (16) is provided on the top of the shelf (17), and a drain trough (19) is provided on the top of the base (1) and below the U-shaped frame (8). The opening of the collection box (16) is located below the drain trough (19).
7. The silicon wafer basket pre-dehydration mechanism according to claim 1, characterized in that: The top opening of the drain tank (19) is wide.
8. The silicon wafer basket pre-dehydration mechanism according to claim 1, characterized in that: A control cabinet (9) is installed on the side of the U-shaped frame (8). The controller inside the control cabinet (9) is connected to the telescopic mechanism (7), the first drive motor (13) and the second drive motor (20) respectively through wires. Infrared sensors (26) are installed on both sides of the U-shaped frame (8), and the infrared sensors (26) are connected to the controller through wires.