Single crystal silicon rod drawing device

Abstract

The utility model belongs to the technical field of photovoltaic processing, and particularly relates to a single crystal silicon rod drawing device, which comprises a base and a shell, the bottom of the shell is fixedly mounted at the top of the base, a heater is mounted on the inner wall of the bottom of the shell, a crucible is fixedly mounted on the inner wall of the shell, and the crucible is fixedly mounted on the inner wall of the shell. The heater is located below the crucible and matched with the crucible, a heat exchanger is fixedly installed on the inner wall of the shell, the crucible is sleeved with the heat exchanger, and the top end of the shell is fixedly communicated with a feeding pipe; the drawing assembly comprises a second electric push rod, a storage pipe, a clamping seat and a silicon seed crystal, and the second electric push rod is arranged above the feeding pipe. According to the single crystal silicon rod drawing device, the single crystal silicon rod drawing and rapid blanking are realized through a simple structure, the subsequent transfer is convenient, the operation is convenient and rapid, time and labor are saved, and the production efficiency is improved. And the drawing efficiency of the silicon single crystal rod is greatly improved, and the practicability is high.

Description

Technical Field

[0001] This utility model relates to the field of photovoltaic processing technology, and in particular to a device for pulling monocrystalline silicon rods. Background Technology

[0002] In recent years, photovoltaic power generation, as a green energy source and a major energy source for human sustainable development, has received increasing attention and vigorous development from countries around the world. Monocrystalline silicon wafers, as a fundamental material for photovoltaic power generation, have a wide market demand. Monocrystalline silicon wafers are typically obtained by slicing monocrystalline silicon rods, which can be grown and pulled from molten silicon.

[0003] In the prior art, existing single-crystal silicon rod pulling devices are not convenient for unloading single-crystal silicon rods after they have been pulled, which affects the processing efficiency of single-crystal silicon rods and makes them impractical. Therefore, this application proposes a single-crystal silicon rod pulling device to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing single-crystal silicon rod pulling devices, which make it difficult to unload the single-crystal silicon rods after they have been pulled, thus affecting the processing efficiency and practicality of the single-crystal silicon rods. Therefore, this invention proposes a single-crystal silicon rod pulling device.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A single-crystal silicon rod pulling device includes a base, and the pulling device further includes:

[0007] The shell has its bottom fixedly mounted on the top of the base. A heater is installed on the inner wall of the bottom of the shell. A crucible is fixedly mounted on the inner wall of the shell. The heater is located below the crucible and cooperates with the crucible. A heat exchanger is fixedly mounted on the inner wall of the shell and is sleeved on the crucible. A feeding pipe is fixedly connected to the top of the shell.

[0008] A drawing assembly, comprising: a second electric push rod, a storage tube, a clamp, and a silicon seed crystal; the second electric push rod is disposed above the feeding tube and is fixedly installed on the top of the storage tube, and the output shaft of the second electric push rod passes through the storage tube and extends into the interior of the storage tube; the top of the clamp is fixedly installed on the output shaft of the second electric push rod; and the top of the silicon seed crystal is clamped to the clamp.

[0009] A transmission assembly is disposed on the top of the base and cooperates with a second electric push rod;

[0010] A receiving component is disposed on the top of the base and cooperates with the storage tube.

[0011] As a preferred embodiment of this utility model, the transmission assembly includes two upright plates, an electric slide rail, and two first electric push rods. The bottom ends of the two upright plates are fixedly installed on the top of the base. The left and right ends of the electric slide rail are slidably connected to the sides of the two upright plates that are close to each other. The two first electric push rods are fixedly installed on the sides of the two upright plates that are close to each other. The output shafts of the two first electric push rods are fixedly installed at the bottom of the electric slide rail.

[0012] As a preferred embodiment of this utility model, each of the two upright plates has a sliding groove on one side that is close to each other, and a slider is fixedly installed at the left and right ends of the electric slide rail, with the slider slidingly connected in the corresponding sliding groove.

[0013] In a preferred embodiment of this utility model, the receiving assembly includes a bracket, a motor, a receiving cylinder, two third electric push rods, and two clamping plates. The bottom of the bracket is fixedly installed on the top of the base. The left and right sides of the receiving cylinder are rotatably connected to the inner wall of the bracket. The motor is fixedly installed on the right side of the bracket, and the output shaft of the motor passes through the right side of the bracket and is fixedly installed on the receiving cylinder. The two third electric push rods are respectively fixedly installed on the left and right sides of the receiving cylinder, and the output shafts of the two third electric push rods pass through the left and right sides of the receiving cylinder and extend into the interior of the receiving cylinder. The output shafts of the two third electric push rods are respectively fixedly installed on the side of the two clamping plates that are far apart from each other.

[0014] As a preferred embodiment of this utility model, a buffer pad is fixedly installed on the bottom inner wall of the receiving cylinder.

[0015] As a preferred embodiment of this utility model, an anti-slip pad is fixedly installed on one side of the clamping plate.

[0016] Beneficial effects:

[0017] 1. By activating the first electric push rod, the electric slide rail, the second electric push rod, the storage tube, the clamp, and the silicon seed crystal can be driven to move up and down, so as to facilitate the docking and separation of the storage tube and the feeding tube. Furthermore, by activating the electric slide rail, the second electric push rod, the storage tube, the clamp, and the silicon seed crystal can be driven to move laterally, so as to facilitate the transfer of the single crystal silicon rod and the unloading of the single crystal silicon rod.

[0018] 3. By setting up the receiving component, it is easy to receive the monocrystalline silicon rod, which improves the convenience of unloading the monocrystalline silicon rod. At the same time, starting the motor can drive the receiving cylinder and the monocrystalline silicon rod to rotate, which allows the monocrystalline silicon rod to be placed horizontally, thus making it easier to place and transport the monocrystalline silicon rod onto the conveyor belt.

[0019] This invention achieves rapid drawing and unloading of monocrystalline silicon rods through a simple structure, and facilitates subsequent transfer. It is convenient and quick to operate, saving time and effort, and greatly improves the efficiency of drawing monocrystalline silicon rods, making it highly practical. Attached Figure Description

[0020] Figure 1 This is a three-dimensional front view of the structure of this utility model;

[0021] Figure 2 This is a three-dimensional sectional view of the shell structure of this utility model;

[0022] Figure 3 This is a three-dimensional sectional view of the storage tube of this utility model;

[0023] Figure 4 This is a three-dimensional sectional view of the receiving cylinder of this utility model.

[0024] In the diagram: 1. Base; 2. Shell; 3. Feeding pipe; 4. Heater; 5. Crucible; 6. Heat exchanger; 7. Vertical plate; 8. Electric slide rail; 9. Slider; 10. Slide groove; 11. First electric push rod; 12. Second electric push rod; 13. Storage tube; 14. Clamp; 15. Silicon seed crystal; 16. Support; 17. Motor; 18. Receiving cylinder; 19. Buffer pad; 20. Third electric push rod; 21. Clamping plate; 22. Anti-slip pad. Detailed Implementation

[0025] 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.

[0026] Example

[0027] Reference Figures 1-4 A single-crystal silicon rod pulling device includes a base 1, and the pulling device further includes:

[0028] The shell 2 has its bottom fixedly installed on the top of the base 1. A heater 4 is installed on the inner wall of the bottom of the shell 2. A crucible 5 is fixedly installed on the inner wall of the shell 2. The heater 4 is located below the crucible 5 and cooperates with the crucible 5. A heat exchanger 6 is fixedly installed on the inner wall of the shell 2 and is sleeved on the crucible 5. A feeding pipe 3 is fixedly connected to the top of the shell 2.

[0029] The drawing assembly includes: a second electric push rod 12, a storage tube 13, a clamp 14, and a silicon seed crystal 15. The second electric push rod 12 is disposed above the feeding tube 3 and is fixedly installed on the top of the storage tube 13. The output shaft of the second electric push rod 12 passes through the storage tube 13 and extends into the interior of the storage tube 13. The top of the clamp 14 is fixedly installed on the output shaft of the second electric push rod 12, and the top of the silicon seed crystal 15 is clamped to the clamp 14.

[0030] A transmission assembly is located on the top of the base 1 and cooperates with the second electric push rod 12.

[0031] The receiving component is located on the top of the base 1 and cooperates with the storage tube 13.

[0032] To solve the problem of inconvenient feeding of monocrystalline silicon rods, such as Figure 1 As shown, silicon material is added into crucible 5 through feeding pipe 3. Then, the transmission assembly drives the second electric push rod 12, storage pipe 13, clamp 14, and silicon seed crystal 15 to move directly above feeding pipe 3, causing storage pipe 13 to move down and connect with feeding pipe 3 for sealing. At this time, heater 4 and heat exchanger 6 are activated to melt the silicon material inside crucible 5. After the silicon material melts, the second electric push rod 12 is activated to drive clamp 14 and silicon seed crystal 15 down and into the interior of crucible 5. At this time, the bottom end of the silicon seed crystal 15 contacts the silicon material solution, and then the second electric push rod 12 is activated to drive the silicon seed crystal 15 to move slowly upward. At this time, the heat exchanger 6 can cool the silicon material solution, thereby forming the single crystal silicon rod. When the single crystal silicon rod is formed and enters the interior of the storage tube 13, the transmission component drives the second electric push rod 12, the storage tube 13, the clamp 14, the silicon seed crystal 15 and the single crystal silicon rod to move upward and to the right, so as to facilitate the single crystal silicon rod to cooperate with the receiving component for feeding.

[0033] As a preferred embodiment of this utility model, the transmission assembly includes two upright plates 7, an electric slide rail 8, and two first electric push rods 11. The bottom ends of the two upright plates 7 are fixedly installed on the top of the base 1. The left and right ends of the electric slide rail 8 are slidably connected to the sides of the two upright plates 7 that are close to each other. The two first electric push rods 11 are fixedly installed on the sides of the two upright plates 7 that are close to each other. The output shafts of the two first electric push rods 11 are fixedly installed at the bottom of the electric slide rail 8. By activating the first electric push rod 11, the electric slide rail 8, the second electric push rod 12, the storage tube 13, the clamp 14, and the silicon seed crystal 15 can be driven to move up and down, so as to facilitate the docking and separation of the storage tube 13 and the feeding tube 3. By activating the electric slide rail 8, the second electric push rod 12, the storage tube 13, the clamp 14, and the silicon seed crystal 15 can be driven to move laterally, so as to facilitate the transfer of the single crystal silicon rod and facilitate the unloading of the single crystal silicon rod.

[0034] As a preferred embodiment of this utility model, each of the two upright plates 7 has a sliding groove 10 on one side that is close to each other. The left and right ends of the electric slide rail 8 are fixedly installed with sliders 9. The sliders 9 are slidably connected in the corresponding sliding grooves 10. Through the sliding limit cooperation between the sliders 9 and the sliding grooves 10, the electric slide rail 8 can be stably limited and supported.

[0035] In a preferred embodiment of this utility model, the receiving assembly includes a bracket 16, a motor 17, a receiving cylinder 18, two third electric push rods 20, and two clamping plates 21. The bottom of the bracket 16 is fixedly mounted on the top of the base 1. The left and right sides of the receiving cylinder 18 are rotatably connected to the inner wall of the bracket 16. The motor 17 is fixedly mounted on the right side of the bracket 16, and the output shaft of the motor 17 passes through the right side of the bracket 16 and is fixedly mounted on the receiving cylinder 18. The two third electric push rods 20 are respectively fixedly mounted on the left and right sides of the receiving cylinder 18, and the output shafts of the two third electric push rods 20 pass through the left and right sides of the receiving cylinder 18 and extend into the interior of the receiving cylinder 18. The output shafts are fixedly installed on opposite sides of the two clamping plates 21. By activating the second electric push rod 12, the clamping seat 14, the silicon seed crystal 15, and the monocrystalline silicon rod are moved downwards, allowing the monocrystalline silicon rod to be placed inside the receiving cylinder 18. After the monocrystalline silicon rod is placed inside the receiving cylinder 18, the clamping seat 14 releases the clamping fixation of the silicon seed crystal 15, thus enabling the unloading operation of the monocrystalline silicon rod. Then, activating the two third electric push rods 20 can drive the clamping plates 21 to clamp and fix the monocrystalline silicon rod. After the monocrystalline silicon rod is fixed, the starting motor 17 can drive the receiving cylinder 18 and the monocrystalline silicon rod to rotate, allowing the monocrystalline silicon rod to be placed horizontally, thus facilitating its placement and transport on the conveyor belt.

[0036] As a preferred embodiment of this utility model, a buffer pad 19 is fixedly installed on the bottom inner wall of the receiving cylinder 18. By setting the buffer pad 19, the bottom end of the single crystal silicon rod can be efficiently supported and protected.

[0037] As a preferred embodiment of this utility model, an anti-slip pad 22 is fixedly installed on one side of the clamping plate 21. By setting the anti-slip pad 22, the clamping plate 21 can stably clamp and fix the single crystal silicon rod.

[0038] It should be noted that the specific models of heater 4, crucible 5, heat exchanger 6, electric slide rail 8, first electric push rod 11, second electric push rod 12, motor 17, and third electric push rod 20 used can be selected by those skilled in the art. Furthermore, the heater 4, crucible 5, heat exchanger 6, electric slide rail 8, first electric push rod 11, second electric push rod 12, motor 17, and third electric push rod 20 mentioned above are all existing technologies and will not be elaborated upon in this solution.

[0039] The working principle of this utility model is as follows: In use, the heater 4, heat exchanger 6, electric slide rail 8, first electric push rod 11, second electric push rod 12, motor 17, and third electric push rod 20 are first connected to an external power source. Then, silicon material is added to the crucible 5 through the feeding pipe 3. The transmission assembly then moves the second electric push rod 12, storage pipe 13, clamp 14, and silicon seed crystal 15 to directly above the feeding pipe 3, causing the storage pipe 13 to move down and seal with the feeding pipe 3. At this point, the heater 4 and heat exchanger 6 are activated, enabling the silicon material inside the crucible 5 to be melted. After the silicon material melts, the second electric push rod 12 is activated, causing the clamp 14 and silicon seed crystal 15 to move down and enter the interior of the crucible 5. The bottom end of the silicon seed crystal 15 contacts the silicon solution. Then, the second electric push rod 12 is activated, causing the silicon seed crystal 15 to slowly move upwards. The heat exchanger 6 then cools the silicon solution, thus allowing the single crystal to... In the silicon rod forming process, when the monocrystalline silicon rod is formed and enters the storage tube 13, the transmission assembly drives the second electric push rod 12, the storage tube 13, the clamp 14, the silicon seed crystal 15, and the monocrystalline silicon rod to move upward and to the right, thereby facilitating the feeding of the monocrystalline silicon rod in conjunction with the receiving assembly. In addition, by activating the second electric push rod 12, the clamp 14, the silicon seed crystal 15, and the monocrystalline silicon rod move downward, allowing the monocrystalline silicon rod to be placed inside the receiving cylinder 18. After the monocrystalline silicon rod is placed inside the receiving cylinder 18, the clamp 14 releases the clamping and fixing of the silicon seed crystal 15, thus enabling the feeding of the monocrystalline silicon rod. Then, the two third electric push rods 20 are activated to drive the clamping plate 21 to clamp and fix the monocrystalline silicon rod. After the monocrystalline silicon rod is fixed, the motor 17 is activated to drive the receiving cylinder 18 and the monocrystalline silicon rod to rotate, thus allowing the monocrystalline silicon rod to be placed horizontally, facilitating its placement and transport on the conveyor belt.

[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 single-crystal silicon rod pulling device, comprising a base (1), characterized in that, The drawing device also includes: The shell (2) is fixedly installed at the bottom of the base (1) and a heater (4) is installed on the inner wall of the bottom of the shell (2). A crucible (5) is fixedly installed on the inner wall of the shell (2). The heater (4) is located below the crucible (5) and cooperates with the crucible (5). A heat exchanger (6) is fixedly installed on the inner wall of the shell (2). The heat exchanger (6) is sleeved on the crucible (5). A feeding pipe (3) is fixedly connected to the top of the shell (2). The drawing assembly includes: a second electric push rod (12), a storage tube (13), a clamp (14), and a silicon seed crystal (15). The second electric push rod (12) is disposed above the feeding tube (3). The second electric push rod (12) is fixedly installed on the top of the storage tube (13), and the output shaft of the second electric push rod (12) passes through the storage tube (13) and extends into the interior of the storage tube (13). The top of the clamp (14) is fixedly installed on the output shaft of the second electric push rod (12), and the top of the silicon seed crystal (15) is clamped to the clamp (14). A transmission assembly is disposed on the top of the base (1) and cooperates with the second electric push rod (12); The receiving component is disposed on the top of the base (1) and cooperates with the storage tube (13).

2. The single-crystal silicon rod pulling device according to claim 1, characterized in that, The transmission assembly includes two upright plates (7), an electric slide rail (8), and two first electric push rods (11). The bottom ends of the two upright plates (7) are fixedly installed on the top of the base (1). The left and right ends of the electric slide rail (8) are slidably connected to the two upright plates (7) on the side where they are close to each other. The two first electric push rods (11) are fixedly installed on the side where they are close to each other. The output shafts of the two first electric push rods (11) are fixedly installed at the bottom of the electric slide rail (8).

3. The single-crystal silicon rod pulling device according to claim 2, characterized in that, The two upright plates (7) are provided with a sliding groove (10) on the side that is close to each other. The left and right ends of the electric slide rail (8) are fixedly installed with sliders (9), and the sliders (9) are slidably connected in the corresponding sliding grooves (10).

4. The single-crystal silicon rod pulling device according to claim 1, characterized in that, The receiving assembly includes a bracket (16), a motor (17), a receiving cylinder (18), two third electric push rods (20), and two clamping plates (21). The bottom of the bracket (16) is fixedly installed on the top of the base (1). The left and right sides of the receiving cylinder (18) are rotatably connected to the inner wall of the bracket (16). The motor (17) is fixedly installed on the right side of the bracket (16), and the output shaft of the motor (17) passes through the right side of the bracket (16) and is fixedly installed on the receiving cylinder (18). The two third electric push rods (20) are respectively fixedly installed on the left and right sides of the receiving cylinder (18). The output shafts of the two third electric push rods (20) pass through the left and right sides of the receiving cylinder (18) and extend into the interior of the receiving cylinder (18). The output shafts of the two third electric push rods (20) are respectively fixedly installed on the side of the two clamping plates (21) that are far apart from each other.

5. The single-crystal silicon rod pulling apparatus according to claim 4, characterized in that, A buffer pad (19) is fixedly installed on the bottom inner wall of the receiving cylinder (18).

6. The single-crystal silicon rod pulling apparatus according to claim 4, characterized in that, An anti-slip pad (22) is fixedly installed on one side of the clamp (21).

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