Refeeding device lifting device for single crystal furnace

Abstract

The utility model relates to the technical field of single crystal furnaces, in particular to a re-throwing device lifting device for a single crystal furnace, which comprises a hanging piece movably arranged up and down and a connector positioned on a re-throwing device, the hanging piece comprises an adapter, a guide ring is fixedly mounted at the bottom end of the adapter, connecting plates are fixedly mounted at two ends of the top of the guide ring, and the connecting plates are fixedly connected with the adapter. Supporting rods are movably arranged at the tops of the two connecting plates, the adjacent ends of the two supporting rods penetrate into the adapter, a reserved space is formed between the adjacent ends of the two supporting rods, through holes are formed in the separated ends of the two supporting rods, a traction assembly is arranged on the two through holes, and the traction assembly comprises a rope used for pulling the two supporting rods to swing. Through the guiding function of the guiding ring, butt joint of the connector and the hanging piece can be facilitated, so that a user can conveniently implement long-distance lifting adjustment by means of the traction assembly and the rope, the convenience of lifting the re-throwing device by the user is improved, and meanwhile, the safety of the user during feeding is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of single crystal furnaces, in particular to a re-thrower lifting device for a single crystal furnace. Background Art

[0002] The production of single crystal silicon ingots is to use the single crystal furnace and the heat field in the furnace to melt polycrystalline silicon and grow single crystal silicon ingots by the direct pulling method. At present, the production of ingots uses the RCZ multiple direct pulling technology, and multiple ingots are pulled by multiple feeding. When feeding, the re-feeder filled with raw materials is hoisted into the single crystal furnace through the auxiliary chamber of the single crystal furnace. The auxiliary chamber is equipped with a lifting device, which is connected to the re-feeder connector through the re-feeder pendant.

[0003] In the process of feeding the single crystal furnace, the following problems usually occur. See the publication number CN218262818U, which discloses an external re-feeding device for a single crystal furnace, including: a first material guide component, the first material guide component includes: a first material receiving hopper, the first material receiving hopper is located below the material bin; a first material guide pipe, the first material guide pipe is fixedly connected to the frame; a second material guide component, the second material guide component includes: a second material receiving hopper, the second material receiving hopper is located at the discharge end of the second part, and is used to receive the discharge of the first material guide pipe; a second material guide pipe, the second material guide pipe is fixedly connected to the frame, the second material guide pipe is located below the first material guide pipe, and the second material guide pipe is fixedly connected to the frame. The material guide pipe is arranged horizontally, and the second material guide pipe is connected to the second material receiving hopper; and the second driving member is connected to the bottom of the second material guide pipe, and the second driving member is used to drive the silicon material located in the second material guide pipe to move. Although this patent solves the technical problem of the inconvenience of blocking silicon material in the re-feeding device, there is still a problem that the user is required to operate the feeding at a close distance, thereby threatening the user's work safety. Therefore, in the long-term research and development testing process, it was found that the re-feeding device for the single crystal furnace in the prior art requires the user to approach the single crystal furnace to manually connect the hanger and the connecting head when lifting, which makes the user have certain safety hazards during the feeding process. Utility Model Content

[0004] In view of this, the purpose of the utility model is to propose a lifting device for a re-feeder for a single crystal furnace, so as to solve the problem that when lifting the re-feeder for a single crystal furnace, the user needs to approach the single crystal furnace to manually connect the hanger with the connecting head, which poses certain safety hazards to the user during the feeding process.

[0005] Based on the above-mentioned purpose, the utility model provides a lifting device for a single crystal furnace re-investor, comprising: a hanger movably arranged up and down, and a connecting head located on the re-investor, the connecting head and the hanger are coaxially arranged up and down, and the hanger is located above the connecting head; the top of the connecting head is hemispherical, and the middle part of the connecting head is a necked structure, and the hanger comprises: an adapter, a guide ring is fixedly installed at the bottom of the adapter, connecting plates are fixedly installed at both ends of the top of the guide ring, support rods are movably arranged on the top of the two connecting plates, the adjacent ends of the two support rods are inserted into the interior of the adapter, and reserved spaces are formed at the adjacent ends of the two support rods, and through holes are opened at the separated ends of the two support rods, and traction components are arranged on the two through holes, and the traction components include ropes for pulling the two support rods to swing.

[0006] Preferably, a pin is fixedly installed on the top of one side of the connecting plate, and the support rod is fixedly installed on one end of the outer periphery of the pin, and adjacent ends of the two support rods are provided with inclined surfaces.

[0007] Preferably, a sheath is fixedly sleeved on the periphery of the adapter, bolts are threadedly inserted on both sides of the bottom of the guide ring, the top of the bolt passes through the guide ring and is threadedly inserted into the connecting plate, the guide ring is a conical structure with upper and lower openings and a hollow interior, and flanging grooves are provided at the bottom end around the periphery of the guide ring.

[0008] Preferably, the traction assembly further comprises: a pull rope, wherein two ends of the pull rope are respectively wound in the two through holes, and one end of the rope is wound around the middle of the outer periphery of the pull rope.

[0009] Preferably, the traction assembly further comprises: a magnetic ring, the magnetic ring is movably sleeved on the periphery of the adapter, one end of the rope is fixedly mounted on the magnetic ring, and the support rod is an iron block.

[0010] Preferably, the traction assembly further comprises: a reset spring fixedly mounted between the guide ring and the support rod, and the magnetic ring is adjusted to the support rod to change the deformation of the reset spring.

[0011] The beneficial effects of the utility model are as follows: when it is necessary to lift the re-feeder, the position height of the hanger is lowered so that the connecting head can extend into the guide ring and dock with the adapter under the guiding action of the guide ring, driving the hanger to continue to move downward, so that the connecting head can lift and rotate the support rod until the support rod is separated from the top of the connecting head and falls back to a horizontal state. At this time, the hanger starts to lift until the connecting head contacts the upper end of the support rod, thereby being able to lift the connecting head until the re-feeder is lifted into the single crystal furnace to complete the re-feeding. When it is necessary to unhook the connecting head, the support rod is flipped over by the traction assembly, so that the hanger can automatically disengage from the connecting head. After the hanger is disengaged, the hanger is driven to start lifting again to complete a re-feeding process. The guiding function of the guide ring can facilitate the docking of the connecting head and the hanger, thereby facilitating the user to implement long-distance lifting and adjustment with the help of the traction assembly and the rope, while improving the convenience of the user in lifting the re-feeder and the safety of the user when adding materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only for the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0013] Figure 1 This is a schematic diagram of the half-section structure of the pendant of the utility model;

[0014] Figure 2 This is a schematic diagram of the half-section structure of the connector of the utility model from the front view;

[0015] Figure 3 This is a schematic diagram of the matching structure of the pendant and the connector of the utility model;

[0016] Figure 4 This is a schematic diagram of the split structure of the pendant and the connector of the utility model;

[0017] Figure 5 This is a schematic diagram of the pull rope position structure of the utility model;

[0018] Figure 6 This is a schematic diagram of the magnetic ring position structure of the utility model;

[0019] Figure 7 This is a schematic diagram of the position structure of the return spring of the utility model.

[0020] The markings in the figure are: 1. pendant; 11. adapter; 12. sheath; 13. support rod; 14. pin; 15. through hole; 16. connecting plate; 17. guide ring; 18. bolt; 2. connector; 21. pull rope; 22. magnetic ring; 23. reset spring. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with specific embodiments.

[0022] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, a re-thrower lifting device for a single crystal furnace comprises: a hanger 1 movably arranged up and down, and a connector 2 located on the re-thrower, the connector 2 and the hanger 1 are coaxially arranged up and down, and the hanger 1 is located above the connector 2; the top of the connector 2 is hemispherical, and the middle of the connector 2 is a necked structure, the hanger 1 comprises: an adapter 11, a guide ring 17 is fixedly installed on the bottom end of the adapter 11 by screws, connecting plates 16 are fixedly installed on both ends of the top of the guide ring 17 by screws, support rods 13 are movably arranged on the top of the two connecting plates 16, the adjacent ends of the two support rods 13 are inserted into the interior of the adapter 11, and reserved spaces are formed at the adjacent ends of the two support rods 13, and through holes 15 are opened at the separated ends of the two support rods 13, and traction components are arranged on the two through holes 15, and the traction components include ropes for pulling the two support rods 13 to swing.

[0023] Wherein, a connector 2 is installed on the upper part of the re-feeder, and after being filled with materials, it is placed under the lifting device of the single crystal furnace. The lifting device can be powered by a hydraulic telescopic rod or a winder, and a hanger 1 is installed under the lifting device so that the hanger 1 can move up and down. When the re-feeder needs to be lifted, the height of the hanger 1 is lowered so that the connector 2 can be inserted into the guide ring 17 and docked with the adapter 11 under the guidance of the guide ring 17, and the hanger 1 is driven to continue to move downward, so that the connector 2 can lift and rotate the support rod 13 until the support rod 13 is separated from the top of the connector 2 and falls back to a horizontal state. At this time, the hanger 1 starts to lift until the connector 1 is connected. The head 2 contacts with the upper end of the support rod 13, so that the connecting head 2 can be lifted until the re-feeding device is lifted into the single crystal furnace to complete the re-feeding and charging; during the re-feeding and charging process, the support rod 13 is always in a horizontal state under the action of gravity and the pressure of the connecting head 2, so that the connecting head 2 and the hanger 1 can be kept from being unhooked to achieve a stable lifting effect; after the re-feeding and charging is completed, the hanger 1 is driven to move downward until the re-feeding device is placed in its original position. When the connecting head 2 needs to be unhooked, the support rod 13 is flipped through the traction assembly, so that the hanger 1 can automatically detach from the connecting head 2. After the hanger 1 detaches, the hanger 1 is driven to start lifting, completing a re-feeding and charging process.

[0024] A pin 14 is fixedly installed on the top of one side of the connecting plate 16 by screws, and the support rod 13 is fixedly installed on one end of the outer periphery of the pin 14 by screws. The pin 14 can facilitate the swinging of the support rod 13. The adjacent ends of the two support rods 13 are provided with inclined surfaces, which can cooperate with the hemispherical structure on the top of the connector 2, so as to achieve a smoother opening of the two support rods 13, so as to facilitate the insertion of the connector 2 on the top of the two support rods 13; the outer periphery of the adapter 11 is fixedly sleeved with a sheath 12, which is a hollow cylindrical structure, and It is made of non-metallic material, and bolts 18 are threadedly inserted on both sides of the bottom of the guide ring 17. The top of the bolt 18 passes through the guide ring 17 and is threadedly inserted into the connecting plate 16. The bolt 18 can further improve the stability of the connecting plate 16 on the guide ring 17. The guide ring 17 is a conical structure with upper and lower openings and a hollow interior, so as to improve the alignment rate of the connector 2 when it is initially in contact with the hanger 1. The bottom end of the guide ring 17 is provided with a flanging groove around the periphery, and the flanging groove is convenient for users to use auxiliary tools to adjust the swing angle of the guide ring 17.

[0025] Further, such as Figure 5 As shown, the traction assembly also includes: a pull rope 21, the two ends of the pull rope 21 are respectively wound in the two through holes 15, and one end of the rope is wound around the middle of the outer periphery of the pull rope 21, so that the two support rods 13 can be synchronously driven to swing by the traction rope, so that the connector 2 can be more smoothly and conveniently separated from the pendant 1.

[0026] Further, such as Figure 6 As shown, the traction assembly also includes: a magnetic ring 22, which is movably mounted on the periphery of the adapter 11, one end of the rope is fixedly mounted on the magnetic ring 22 by a screw, and the support rod 13 is an iron block. By changing the position of the magnetic ring 22 on the periphery of the adapter 11 by the rope, the magnetic adsorption strength between the magnetic ring 22 and the support rod 13 can be adjusted in real time, so that the two support rods 13 can be lifted by magnetic force, making it easier for the connector 2 to be detached from the pendant 1.

[0027] In order to further improve the efficiency of the connector 2 being released from the hanger 1, Figure 7 As shown, the traction assembly also includes: a reset spring 23, which is fixedly installed between the guide ring 17 and the support rod 13 by screws, and the magnetic ring 22 is adjusted to the support rod 13 to change the deformation of the reset spring 23. The reset spring 23 provided between the guide ring 17 and the support rod 13 can assist the change of magnetic force to improve the efficiency of the user in lifting the support rod 13, and further improves the effect of lifting the support rod 13 to make the connecting head 2 detach from between the two support rods 13.

[0028] Working principle: When in use, a connector 2 is installed on the upper part of the re-feeder, and after it is fully loaded, it is placed under the lifting device of the single crystal furnace. The lifting device can be powered by a hydraulic telescopic rod or a winder, and a hanger 1 is installed under the lifting device so that the hanger 1 can move up and down. When the re-feeder needs to be lifted, the height of the hanger 1 is lowered so that the connector 2 can extend into the guide ring 17 and dock with the adapter 11 under the guidance of the guide ring 17, driving the hanger 1 to continue to move downward, so that the connector 2 can lift and rotate the support rod 13 until the support rod 13 is separated from the top of the connector 2 and falls back to a horizontal state. At this time, the hanger 1 starts to lift until Until the connector 2 contacts with the upper end of the support rod 13, the connector 2 can be lifted until the re-feeder is lifted into the single crystal furnace to complete the re-feeding; during the re-feeding process, the support rod 13 is always in a horizontal state under the action of gravity and the pressure of the connector 2, so that the connector 2 and the hanger 1 can be kept from being unhooked to achieve a stable lifting effect; after the re-feeding is completed, the hanger 1 is driven to move downward until the re-feeder is placed in its original position. When the connector 2 needs to be unhooked, the support rod 13 is flipped over by the traction assembly, so that the hanger 1 can automatically detach from the connector 2. After the hanger 1 is detached, the hanger 1 is driven to start lifting, completing a re-feeding process.

[0029] Those skilled in the art should understand that the discussion of any of the above embodiments is merely illustrative and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples. Under the concept of the present invention, the technical features in the above embodiments or different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in detail for the sake of simplicity.

Claims

1. A re-injection device for a single crystal furnace, comprising: A hanging part (1) movably arranged up and down, and a connecting head (2) located on a re-investor, wherein the connecting head (2) and the hanging part (1) are coaxially arranged up and down, and the hanging part (1) is located above the connecting head (2); characterized in that the top of the connecting head (2) is hemispherical, the middle of the connecting head (2) is a necked structure, and the hanging part (1) comprises: An adapter (11), wherein a guide ring (17) is fixedly installed at the bottom end of the adapter (11), connecting plates (16) are fixedly installed at both ends of the top of the guide ring (17), support rods (13) are movably arranged on the tops of the two connecting plates (16), the adjacent ends of the two support rods (13) are inserted into the interior of the adapter (11), and reserved spaces are formed at the adjacent ends of the two support rods (13), and through holes (15) are opened at the separated ends of the two support rods (13), and traction components are arranged on the two through holes (15), and the traction components include ropes for pulling the two support rods (13) to swing.

2. A re-injection device for a single crystal furnace according to claim 1, characterized in that: A pin shaft (14) is fixedly mounted on the top of one side of the connecting plate (16), and the support rod (13) is fixedly mounted on one end of the outer periphery of the pin shaft (14). The adjacent ends of the two support rods (13) are both provided with inclined surfaces.

3. The re-injection device for a single crystal furnace according to claim 1, characterized in that: The adapter (11) is fixedly sleeved with a sheath (12) on the periphery, and bolts (18) are threadedly inserted on both sides of the bottom of the guide ring (17). The top of the bolt (18) passes through the guide ring (17) and is threadedly inserted into the connecting plate (16). The guide ring (17) is a conical structure with upper and lower openings and a hollow interior. The guide ring (17) is provided with flanged grooves at the bottom of the periphery.

4. The re-injection device for a single crystal furnace according to claim 1, characterized in that: The traction assembly also includes: A pull rope (21), wherein two ends of the pull rope (21) are respectively wound in the two through holes (15), and one end of the rope is wound around the middle of the outer periphery of the pull rope (21).

5. The re-injection device for a single crystal furnace according to claim 1, characterized in that: The traction assembly also includes: A magnetic ring (22) is movably sleeved on the periphery of the adapter (11); one end of the rope is fixedly mounted on the magnetic ring (22); and the support rod (13) is an iron block.

6. A re-injection device for a single crystal furnace as claimed in claim 5, characterized in that: The traction assembly also includes: The reset spring (23) is fixedly installed between the guide ring (17) and the support rod (13), and the magnetic ring (22) is adjusted to the support rod (13) to change the deformation of the reset spring (23).

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