Single crystal furnace hanging device

Abstract

The utility model relates to the technical field of crystalline silicon production, and discloses a hanging device of a single crystal furnace. The single crystal furnace hanging device comprises a base, a first clamping assembly, a first base and a second clamping assembly, the first clamping component is arranged on the base and is used for clamping a heavy hammer moved out of the auxiliary chamber of the single crystal furnace; the first base is movably arranged on the base in the preset direction. The second clamping assembly is rotatably arranged on the first base in the preset direction, and the second clamping assembly is used for clamping the hanging tool and screwing the hanging tool on the heavy hammer when rotating in the preset direction. The single crystal furnace hanging device provided by the utility model can be beneficial to improving the hanging efficiency in the feeding process of the single crystal furnace.

Description

Technical Field

[0001] This application relates to the field of crystalline silicon production technology, and in particular to a single crystal furnace charging device. Background Technology

[0002] As the installed capacity of photovoltaic modules continues to increase, the demand for monocrystalline silicon, an important material source for photovoltaic modules, is also constantly rising. In the production of monocrystalline silicon, silicon material is typically melted in a monocrystalline furnace and pulled into silicon ingots. After the silicon ingots undergo a cutting process, they are formed into silicon wafers, which can be used to produce solar cells in photovoltaic modules.

[0003] In the production process of a single crystal furnace, silicon material needs to be replenished in a timely manner through feeding. Feeding is typically done using a charging cylinder, which needs to be hung on a counterweight inside the furnace's auxiliary chamber to allow the cylinder to enter the furnace. The efficiency of the charging cylinder's hanging efficiency affects the feeding time of the single crystal furnace, and consequently, its production efficiency. Therefore, improving the efficiency of charging is a crucial issue. Utility Model Content

[0004] The purpose of this application is to provide a single crystal furnace charging device that can improve the charging efficiency during the single crystal furnace charging process.

[0005] To address the aforementioned technical problems, embodiments of this application provide a single crystal furnace loading device. The single crystal furnace loading device includes a base, a first clamping assembly, a first base, and a second clamping assembly. The first clamping assembly is disposed on the base and is used to clamp a weight being removed from the sub-chamber of the single crystal furnace. The first base is movably disposed on the base along a preset direction. The second clamping assembly is rotatably disposed on the first base about the preset direction and is used to clamp a loading fixture, and when rotating about the preset direction, screws the loading fixture onto the weight.

[0006] The single crystal furnace charging device provided in this application has a first clamping assembly and a second clamping assembly respectively provided on the base. The first clamping assembly can clamp onto the counterweight to fix its position. The second clamping assembly can clamp onto the charging fixture and screw the charging fixture onto the counterweight during rotation. Simultaneously, the first base can move relative to the base to continuously tighten the connection between the charging fixture and the counterweight, achieving a tight fit between them. This enables automatic tightening and improves the charging efficiency during the single crystal furnace charging process.

[0007] In some embodiments, the first base is provided with a first driving member and a first platform rotatable about a preset direction. The output end of the first driving member is connected to the first platform, and the second clamping assembly is disposed on the first platform. In this way, the installation of the second clamping assembly can be facilitated by setting the first platform.

[0008] In some embodiments, the single crystal furnace charging device further includes a second base and a third clamping assembly. The second base is movably mounted on a base along a preset direction, and the third clamping assembly is movably mounted on the second base around a preset direction. The third clamping assembly is used to clamp the seed crystal hammer and unscrew it from the counterweight during rotation. In this way, the seed crystal hammer can be automatically disassembled by the third clamping assembly.

[0009] In some embodiments, the second base is provided with a second driving member and a second platform rotatable about a preset direction. The output end of the second driving member is connected to the second platform, and a third clamping assembly is disposed on the second platform. This arrangement of the second platform facilitates the installation of the third clamping assembly.

[0010] In some embodiments, the first base and the second base are spaced apart, and both the first base and the second base can move along a first direction, which is perpendicular to a preset direction. In this way, the position can be changed by moving the first base and the second base, so as to switch between the unloading operation of the seed crystal hammer and the connection operation of the hanging tool.

[0011] In some embodiments, the single crystal furnace charging device further includes a movable component, which is movably mounted on a base along a preset direction. Both the first base and the second base are movably mounted on the movable component along a first direction. This allows for easy installation and assembly of different bases via the movable component.

[0012] In some embodiments, the base is provided with a guide extending in a preset direction, and the moving part slides in conjunction with the guide. In this way, the movement of the moving part can be guided by the guide.

[0013] In some embodiments, the single crystal furnace charging device further includes a connector disposed at the end of the guide member. The first clamping assembly is connected to the connector and spaced apart from the guide member. This allows the first clamping assembly to be installed via the connector, keeping it away from the guide member and preventing interference with the clamping process.

[0014] In some embodiments, a limiting member is provided at the end of the movable member to restrict the movement of the first base. In this way, the movement of the base can be restricted by the limiting member to ensure that the base does not detach.

[0015] In some embodiments, the single crystal furnace charging device also includes a detection element mounted on a base. This detection element is used to detect the coaxiality of the charging fixture and the counterweight. This allows the detection element to check the coaxiality between the charging fixture and the counterweight, ensuring accurate alignment between them. Attached Figure Description

[0016] One or more embodiments are illustrated by way of example with reference numerals in the accompanying drawings. These illustrations do not constitute a limitation on the embodiments. Elements with the same reference numerals in the drawings are denoted as similar elements. Unless otherwise stated, the figures in the drawings are not to be limited by scale.

[0017] Figure 1 This is a three-dimensional structural schematic diagram of the single crystal furnace charging device provided in some embodiments of this application;

[0018] Figure 2 This is a schematic diagram of the structure of the first clamping component in the single crystal furnace charging device provided in some embodiments of this application when clamping the counterweight;

[0019] Figure 3 This is a schematic diagram of the structure of the second clamping component in the single crystal furnace loading device provided in some embodiments of this application when clamping the loading fixture;

[0020] Figure 4 This is a schematic diagram of the structure of the third clamping component in the single crystal furnace loading device provided in some embodiments of this application when clamping the seed crystal hammer. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the various embodiments of this application will be described in detail below with reference to the accompanying drawings. However, those skilled in the art will understand that many technical details have been presented in the various embodiments of this application to enable readers to better understand this application. However, even without these technical details and various changes and modifications based on the following embodiments, the technical solutions claimed in this application can be implemented. The division of the various embodiments below is for the convenience of description and should not constitute any limitation on the specific implementation of this application. The various embodiments can be combined with and referenced by each other without contradiction.

[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms “comprising” and “having”, and any variations thereof, in the specification, claims, and foregoing description of the drawings are intended to cover non-exclusive inclusion.

[0023] In the description of the embodiments of this application, unless otherwise expressly specified and limited, technical terms such as "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this application according to the specific circumstances.

[0024] During the feeding process of the single crystal furnace, the auxiliary chamber is unscrewed to remove the crystal rod. After removing the crystal rod, the seed hammer and counterweight need to be loosened. The two ends of the counterweight are used to connect the tungsten wire rope of the lifting device and the seed hammer, which is used to connect the seed crystal for growing single crystal silicon. Currently, after unscrewing the seed hammer, a U-shaped bushing is used to connect the barrel and the counterweight, allowing the barrel to rise slowly, and then the auxiliary chamber rotates and closes for feeding.

[0025] Specifically, the material cylinder is connected via a pin. A bushing is connected to one end of the counterweight, and the bushing has a through hole for the pin to pass through. After the through hole on the bushing connecting the counterweight and the through hole on the U-shaped bushing connecting the material cylinder are concentric, they are fixed by inserting the pin. The counterweight and the material cylinder are connected in this way, and the tungsten wire rope can pull the counterweight and the material cylinder together to rise. This feeding method is inefficient, requires manual intervention throughout the process, and greatly affects work efficiency. Furthermore, manual operation is unsafe, requiring people to climb to a height to hang the material cylinder.

[0026] To improve material hanging efficiency, some embodiments of this application provide a material hanging device that can automatically tighten the material hanging fixture. The material hanging fixture can automatically connect to the material cylinder as it moves with the counterweight. The automatic tightening of the material hanging fixture through the hanging device achieves automatic connection between the material cylinder and the counterweight. This solves the problems of low safety and slow efficiency associated with manual operation.

[0027] The following is combined Figures 1 to 4 This application describes the structure of a single crystal furnace charging device provided in some embodiments.

[0028] like Figures 1 to 4 As shown, some embodiments of this application provide a single crystal furnace loading device including a base 11, a first clamping assembly 12, a first base 13, and a second clamping assembly 14. The first clamping assembly 12 is disposed on the base 11, and the first clamping component is used to clamp the counterweight 21 that is removed from the sub-chamber of the single crystal furnace. The first base 13 is positioned along a predetermined direction ( Figure 1 The first base 13 is movably mounted on the base 11 in the direction indicated by the middle arrow X and its opposite direction. The second clamping assembly 14 is rotatably mounted on the first base 13 about a preset direction. The second clamping assembly 14 is used to clamp the hanging fixture 31 and screw the hanging fixture 31 onto the counterweight 21 when rotating about the preset direction.

[0029] The base 11 forms the foundation of the material hanging device and can be placed near the single crystal furnace and close to the screw-open sub-chamber. The base 11 can be used to mount other components, allowing them to be close to the counterweight 21 inside the single crystal furnace sub-chamber, so that the material hanging fixture 31 can be aligned with the counterweight 21. The base 11 can be fixed using a frame structure or a platform structure.

[0030] The first clamping assembly 12 is connected to the base 11. The first clamping assembly 12 serves to fix the counterweight 21 during the material hanging process. The first clamping assembly 12 can use grippers to clamp the counterweight 21; the grippers can be pneumatic or electric. The first clamping assembly 12 can be fixed to the base 11 or move relative to the base 11 to adjust the clamping position of the counterweight 21.

[0031] The first base 13 provides a mounting foundation for other components. The first base 13 can move along a preset direction under the drive of an external force, and the preset direction is parallel to the central axis of the counterweight 21. By moving the first base 13 relative to the base 11, it can accommodate the decrease in distance in the preset direction as the hanging fixture 31 and the counterweight 21 are continuously screwed together.

[0032] The second clamping assembly 14 is rotatably mounted on the first base 13. The second clamping assembly 14 can clamp the hanging fixture 31 connected to the material cylinder. The clamping center of the second clamping assembly 14 is on the same straight line as the clamping center of the first clamping assembly 12, ensuring that the hanging fixture 31 and the counterweight 21 are concentric. During the hanging process, the rotation of the second clamping assembly 14 can screw one end of the hanging fixture 31 onto the end of the counterweight 21, thus connecting the hanging fixture 31 and the counterweight 21. This, in turn, connects the material cylinder and the counterweight 21. The second clamping assembly 14 can use jaws to clamp the hanging fixture 31; the jaws can be pneumatic or electric. The end of the counterweight 21 has external threads, and the end of the hanging fixture 31 has internal threads, forming a threaded connection.

[0033] The single crystal furnace charging device provided in some embodiments of this application has a first clamping assembly 12 and a second clamping assembly 14 respectively provided on the base 11. The first clamping assembly 12 can clamp onto the counterweight 21 to fix the position of the counterweight 21. The second clamping assembly 14 can clamp onto the charging fixture 31 and screw the charging fixture 31 onto the counterweight 21 during rotation. At the same time, the first base 13 can move relative to the base 11 to cooperate with the continuously tightening process of the connection between the charging fixture 31 and the counterweight 21, so as to achieve a tight fit between the charging fixture 31 and the counterweight 21. This achieves automatic tightening and improves the charging efficiency during the charging process of the single crystal furnace.

[0034] In some embodiments, the first base 13 may be provided with a first drive member 131 and a first platform 132 rotatable about a preset direction. The output end of the first drive member 131 is connected to the first platform 132, and the second clamping assembly 14 is disposed on the first platform 132.

[0035] The first driving component 131 serves as a drive, causing the first platform 132 to rotate. The output end of the first driving component 131 can be directly connected to the first platform 132, or connected to the first platform 132 via a transmission mechanism. The first platform 132 provides a good mounting base for the second clamping assembly 14. The platform-like structure formed by the first platform 132 facilitates the installation of the second clamping assembly 14 and ensures the stability of the second clamping assembly 14 during rotation.

[0036] like Figure 1 As shown, the single crystal furnace charging device may also include a second base 15 and a third clamping assembly 16. The second base 15 is movably disposed on the base 11 along a preset direction, and the third clamping assembly 16 is movably disposed on the second base 15 around the preset direction. The third clamping assembly 16 is used to clamp the seed crystal hammer 22 and rotate it off the hammer 21 when rotating.

[0037] The second base 15 is used to mount the third clamping assembly 16. The automatic disassembly of the seed crystal hammer 22 is achieved through the cooperation between the second base 15 and the third clamping assembly 16. The second base 15 can move relative to the base 11 along a preset direction to accommodate the distance the second clamping assembly 14 moves along the axis of the weight 21 when the seed crystal hammer 22 is unscrewed from the weight 21. The third clamping assembly 16 enables the automatic unscrewing of the seed crystal hammer 22. The third clamping assembly 16 can use grippers to hold the seed crystal hammer 22, and the grippers can be pneumatic or electric. During rotation, the third clamping assembly 16 can loosen the seed crystal hammer 22 and remove it from the weight 21.

[0038] In some embodiments, the second base 15 may be provided with a second drive member 151 and a second platform 152 that can rotate about a preset direction, the output end of the second drive member 151 is connected to the second platform 152, and the third clamping component 16 is disposed on the second platform 152.

[0039] The second driving component 151 drives the second platform 152 to rotate. The second platform 152 provides a good mounting base for the second clamping assembly 14. The platform-type structure formed by the second platform 152 facilitates the installation of the second clamping assembly 14 and ensures the stability of the second clamping assembly 14 during rotation.

[0040] like Figure 1 As shown, the first base 13 and the second base 15 can be spaced apart, and both the first base 13 and the second base 15 can be arranged along the first direction ( Figure 1 Move in the direction indicated by the middle arrow Y and its opposite direction, with the first direction perpendicular to the preset direction.

[0041] The first base 13 and the second base 15 can be arranged adjacent to each other. The first base 13 and the second base 15 correspond to the tightening operation of the material hanging fixture 31 and the loosening operation of the seed crystal hammer 22, respectively. By arranging the first base 13 and the second base 15 at intervals, the integration of different components can be ensured, and the space occupied can be reduced. At the same time, by making the first base 13 and the second base 15 movable along the first direction, it is easy to avoid each other when performing different operations, so as not to affect the normal operation of tightening the material hanging fixture 31 or loosening the seed crystal hammer 22.

[0042] In some embodiments, the single crystal furnace charging device may further include a movable member 17, which is movably disposed on the base 11 along a preset direction, and the first base 13 and the second base 15 are both movably disposed on the movable member 17 along a first direction.

[0043] The movable component 17 facilitates the installation of different bases. The movable component 17 can move along a preset direction on the base 11, and different bases can be installed at corresponding positions on the movable component 17. The movable component 17 facilitates the integrated installation of the first base 13 and the second base 15. Simultaneously, the first base 13 and the second base 15 can move along the movable component 17 in a direction perpendicular to the preset direction to adjust the relative relationship between different clamping components. When loosening the seed crystal hammer 22, the third clamping component 16 can be aligned with the first clamping component 12, with their clamping centers distributed along a preset direction. The third clamping component 16 can clamp the seed crystal hammer 22 to unscrew it from the counterweight 21. When connecting the hanging fixture 31, the second clamping component 14 can be aligned with the first clamping component 12, with their clamping centers distributed along a preset direction. The second clamping assembly 14 can clamp the hanging fixture 31 so that the hanging fixture 31 can be screwed onto the counterweight 21 and tightened. This realizes the operation of automatically unloading the seed crystal hammer 22 and automatically connecting the hanging fixture 31.

[0044] In practice, the first base 13 and the second base 15 can be connected to the same mounting component, which can slide with the moving component 17. This reduces the number of driving components, and by driving the mounting component to move, the second clamping assembly 14 and the third clamping assembly 16 can be moved simultaneously to achieve position changes.

[0045] In addition, the base 11 may be provided with a guide 18 extending in a preset direction, and the moving part 17 slides in cooperation with the guide 18.

[0046] The guide member 18 provides guidance for the movement of the movable member 17. The movable member 17 slides along the guide member 18, ensuring the direction of movement and controlling the path of movement. A sliding groove and slide rail can be formed between the guide member 18 and the movable member 17 to allow the movable member 17 to move smoothly along a preset direction.

[0047] In practice, the single crystal furnace charging device may also include an actuator, which is mounted on the guide 18 and the output end of the actuator is connected to the moving part 17.

[0048] The actuator can generate driving force to drive the moving part 17 to move along a preset direction. The output end of the actuator can be directly connected to the moving part 17, or connected to the moving part 17 through a transmission mechanism. The actuator can cooperate with different clamping components. When the clamping component rotates to tighten the hanging fixture 31 or loosen the seed crystal hammer 22, it drives the first base 13 or the second base 15 to move along the preset direction to adapt to the distance the clamping component moves in the preset direction.

[0049] like Figure 1 As shown, the single crystal furnace charging device may also include a connector 19, which is disposed at the end of the guide 18. The first clamping assembly 12 is connected to the connector 19 and is spaced apart from the guide 18.

[0050] The connector 19 serves to mount the first clamping assembly 12. The connector 19 is located at the end of the guide 18, near the sub-chamber of the single crystal furnace. The first clamping assembly 12 is fixed to the connector 19, forming a gap between it and the guide 18. This ensures that the first clamping assembly 12 is kept away from the guide 18, preventing its clamping action from being easily interfered with.

[0051] like Figure 2 As shown, the connector 19 has a flat plate structure. The first clamping assembly 12 is fixed at the edge of the connector 19. The first clamping assembly 12 uses a pneumatic gripper, and the two clamping parts of the pneumatic gripper are designed to conform to the shape of the hammer 21. The two clamping parts are designed as arcs, which can contact most of the circumferential surface of the hammer 21 to fix the hammer 21. This ensures that the position and orientation of the hammer 21 remain unchanged during the material hanging process, and the central axis A of the hammer 21 remains vertical. This avoids affecting the subsequent disassembly operation of the seed hammer 22 and the screwing operation of the material hanging fixture 31.

[0052] In some embodiments, a limiting member 171 may be provided at the end of the movable member 17 to limit the movement position of the first base 13.

[0053] The limiting member 171 located at the end of the movable member 17 serves to limit movement, ensuring that the base does not move out of the area of ​​the movable member 17 during movement. This prevents interference with the normal operation of the material hanging device.

[0054] like Figure 3 As shown, the first base 13 is configured as a flat plate structure. The first base 13 includes a portion that slides with the movable member 17 and a portion that extends out of the movable member 17. The first platform 132 is rotatably mounted on the portion of the first base 13 extending out of the movable member 17 using a bracket. The first drive member 131 is mounted on the first base 13 at a position corresponding to the first platform 132. The first drive member 131 can drive the first platform 132 and the second clamping assembly 14 to rotate in the direction indicated by arrow P. The second clamping assembly 14 uses pneumatic grippers. The two clamping portions of the pneumatic grippers are designed to conform to the shape of the hanging fixture 31. The hanging fixture 31 has multiple columnar structures arranged around the periphery of the central axis B. The two clamping portions of the pneumatic grippers have grooves that can engage with the columnar structures. This ensures the normal rotation of the hanging fixture 31 when tightening the hanging fixture 31 and the counterweight 21, thus achieving the tightening process.

[0055] In some embodiments, the second platform 152 may be provided with a central hole for a portion of the seed crystal hammer 22 to pass through.

[0056] The central hole in the second platform 152 serves as a clearance mechanism. During the loosening of the seed crystal hammer 22, the bottom of the seed crystal hammer 22 can pass through the central hole of the second platform 152, allowing the third clamping assembly 16 to be clamped in the appropriate position to secure the seed crystal hammer 22. By providing a central hole in the second platform 152, the installation height of the third clamping assembly 16 can be reduced, ensuring stability when the third clamping assembly 16 is removed from the seed crystal hammer 22.

[0057] like Figure 4As shown, the third clamping assembly 16 is mounted on the second platform 152, which is rotatably mounted on the second base 15 using a bracket. The second base 15 has a plate-like structure and slides with the moving part 17. The second driving part 151 is mounted on the second base 15 at a position corresponding to the second platform 152. The second driving part 151 can drive the second platform 152 and the third clamping assembly 16 to rotate in the direction indicated by arrow Q, so as to unscrew the seed crystal hammer 22 from the counterweight 21. During the process of loosening the seed crystal hammer 22, the central axis C of the seed crystal hammer 22 coincides with the central axis A of the counterweight 21. The third clamping assembly 16 uses a pneumatic gripper, and the two clamping parts of the pneumatic gripper are designed to conform to the shape of the seed crystal hammer 22 to ensure stability during the clamping process.

[0058] In some embodiments, the single crystal furnace charging device may further include a detection element disposed on the base 11, which is used to detect the coaxiality of the charging fixture 31 and the counterweight 21.

[0059] The inspection can be performed visually by taking a picture of the position of the counterweight 21 to determine the coaxiality between the hanging fixture 31 and the counterweight 21. This ensures that the hanging fixture 31 and the counterweight 21 are aligned during the hanging process, so that the hanging fixture 31 can be smoothly screwed onto the counterweight 21 later.

[0060] In practice, the single crystal furnace charging device may also include a carrier, a carrier base 11, and the carrier base 11 may be moved toward different single crystal furnaces.

[0061] The support component can support the base 11 and allow the base 11 to move freely. This allows the material hanging device to move to the location of different single crystal furnaces. The support component can be an AGV (Automated Guided Vehicle).

[0062] The single crystal furnace loading device provided in some embodiments of this application can adopt a modular design with a movable structure to control the height of the clamping components. A rotating platform is used to tighten or loosen the connecting threads between the seed crystal hammer 22, the loading fixture 31, and the counterweight 21. Compared to traditional manual operation, this significantly improves processing efficiency. Furthermore, it significantly enhances production safety, reduces risks associated with working at heights, and protects personnel and production equipment. Simultaneously, the loading device has a simple structure, facilitating maintenance and operation.

[0063] When feeding is required inside the single crystal furnace, the auxiliary chamber of the single crystal furnace is opened, and the crystal rod is removed. The AGV trolley carrying the material hanging device is positioned, ensuring that the clamping center of the first clamping component 12 is aligned with the central axis of the hammer 21. A signal is then sent to the single crystal furnace, causing the hammer 21 to drop, carrying the seed crystal hammer 22. Through visual positioning, the pneumatic jaws of the upper first clamping component 12 clamp the hammer 21, and the pneumatic jaws of the lower third clamping component 16 clamp the seed crystal hammer 22, and begin rotating to remove the seed crystal hammer 22. During the removal of the seed crystal hammer 22, the moving module follows and descends, driving the third clamping component 16 to descend synchronously. After the seed crystal hammer 22 is completely removed, the moving module moves horizontally and switches to the material hanging device position, making the material hanging fixture 31 coaxial with the hammer 21. The moving module rises to perform the initial docking of the material hanging fixture 31 and the hammer 21. After docking is completed, the second clamping component 14 begins to rotate, tightening the material hanging fixture 31. During the tightening of the hanging fixture 31, the moving module rises accordingly, causing the second clamping component 14 to rise synchronously. Once the hanging fixture 31 is tightened according to the number of rotations and torque value, the pneumatic grippers of the first clamping component 12 and the second clamping component 14 are released, and the moving module returns to its initial position. The AGV trolley returns to its waiting position, where a worker loads the hanging fixture 31 and removes the seed crystal hammer 22, allowing the next hanging process to be repeated.

[0064] After tightening the hanging fixture 31, the connection operation of the material cylinder can continue. In practice, the position of the material cylinder is lower than the position where the counterweight 21 is connected to the hanging fixture 31. The hanging of the material cylinder is done automatically without manual operation. The hanging fixture 31 has a central hole inside, into which the connector at the top of the material cylinder can extend. The hanging fixture 31 is equipped with an elastic limiting structure. The limiting block is connected inside the hanging fixture by a spring. The surface of the limiting block facing the central hole is a sloped surface with the top (i.e., the part near the counterweight 21) protruding from the bottom (i.e., the part away from the counterweight 21). The connector at the top of the material cylinder includes a fixed frustum that is thicker at the bottom (i.e., the part away from the counterweight 21) than at the top (i.e., the part near the counterweight 21). When hanging the material cylinder, the single crystal furnace controls the counterweight 21 to continue descending until the fixed frustum enters the central hole of the hanging fixture 31 and presses against the sloped surface of the limiting block, forcing the spring to contract. Once the fixed truncated cone has completely passed the position of the limiting block, the limiting block, under the elastic restoring force of the spring, enters the moving path of the fixed truncated cone, confining it within the central hole. This completes the connection between the material hanging fixture 31 and the material cylinder. Afterwards, the single crystal furnace controls the weight 21 to rise, causing the material cylinder to slowly rise, thereby rotating and closing the auxiliary chamber for material feeding.

[0065] Similarly, the barrel can be automatically unloaded by the movement of the counterweight 21. When the barrel needs to be removed after the feeding operation is completed, the single crystal furnace controls the counterweight 21 to descend until the bottom of the barrel touches the ground. The fixed truncated cone continues to move within the central hole, and another sliding truncated cone near the fixed truncated cone passes the limit member after following the same path as the fixed truncated cone. The sliding truncated cone has a conical shape opposite to that of the fixed truncated cone, and the top of the sliding truncated cone (i.e., the part near the counterweight 21) is thicker than the bottom (i.e., the part away from the counterweight 21). After the sliding truncated cone passes the limit member, it can drive the counterweight 21 to rise, and the sliding truncated cone will gradually exit the central hole, forcing the limit member to exit the moving path of the fixed truncated cone until the fixed truncated cone exits the central hole. This completely separates the barrel from the hanging fixture 31. By using different truncated cone structures and cooperating with the elastic limit structure on the hanging fixture 31, automatic hanging and disassembly of the barrel can be achieved, thereby saving manpower and improving the efficiency of the hanging operation.

[0066] Those skilled in the art will understand that the above embodiments are specific implementations of this application, and in practical applications, various changes can be made in form and detail without departing from the spirit and scope of this application.

Claims

1. A single crystal furnace charging device, characterized in that, include: Base; A first clamping assembly is disposed on the base, and the first clamping assembly is used to clamp the weight that is removed from the sub-chamber of the single crystal furnace; The first base is movably mounted on the base in a preset direction; The second clamping assembly is rotatably disposed on the first base about the preset direction. The second clamping assembly is used to clamp the hanging fixture and screw the hanging fixture onto the counterweight when rotating about the preset direction.

2. The single crystal furnace charging device according to claim 1, characterized in that, The first base is provided with a first driving member and a first platform that can rotate around the preset direction. The output end of the first driving member is connected to the first platform, and the second clamping component is disposed on the first platform.

3. The single crystal furnace charging device according to claim 1, characterized in that, It also includes a second base and a third clamping assembly. The second base is movably disposed on the base along the preset direction, and the third clamping assembly is movably disposed on the second base around the preset direction. The third clamping assembly is used to clamp the seed crystal hammer and to unscrew the seed crystal hammer from the weight when rotating.

4. The single crystal furnace charging device according to claim 3, characterized in that, The second base is provided with a second driving member and a second platform that can rotate around the preset direction. The output end of the second driving member is connected to the second platform, and the third clamping assembly is provided on the second platform.

5. The single crystal furnace charging device according to claim 3, characterized in that, The first base and the second base are spaced apart, and both the first base and the second base can move along a first direction, which is perpendicular to the preset direction.

6. The single crystal furnace charging device according to claim 5, characterized in that, It also includes a movable component, which is movably disposed on the base along the preset direction, and the first base and the second base are both movably disposed on the movable component along the first direction.

7. The single crystal furnace charging device according to claim 6, characterized in that, The base is provided with a guide extending along the preset direction, and the moving part slides in cooperation with the guide.

8. The single crystal furnace charging device according to claim 7, characterized in that, It also includes a connector disposed at the end of the guide, the first clamping assembly being connected to the connector and spaced apart from the guide.

9. The single crystal furnace charging device according to claim 6, characterized in that, The end of the movable component is provided with a limiting component, which restricts the movement position of the first base.

10. The single crystal furnace charging device according to claim 1, characterized in that, It also includes a detection component, which is mounted on the base and is used to detect the coaxiality of the material hanging fixture and the counterweight.

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