Movable induction heating device for vacuum centrifugal casting equipment

Abstract

The invention relates to the technical field of centrifugal casting, in particular to a movable induction heating device for vacuum centrifugal casting equipment, which comprises a box body arranged on a vacuum centrifugal casting chamber, and further comprises an inner crucible arranged in the box body; the outer crucible is arranged in the box body, and the outer crucible and the inner crucible are coaxially arranged; the annular plate is arranged between the inner crucible and the outer crucible; according to the movable induction heating device for the vacuum centrifugal casting equipment, when a worker heats a cast ingot, the rotating unit is used for driving the inner crucible to rotate, and then included slag floats on the upper layer of molten metal; the control unit is arranged in the inner crucible, can control cast ingots in the inner crucible to melt, and is matched with the deslagging unit to control the annular plate to ascend and descend when the inner crucible rotates, so that included slag on the upper layer of molten metal is discharged from the inner crucible to the outer crucible.

Description

Technical Field

[0001] The invention relates to the technical field of centrifugal casting, in particular to a movable induction heating device for vacuum centrifugal casting equipment. Background Art

[0002] In the field of metal casting, especially in the vacuum centrifugal casting process, the slag inclusion problem in the molten ingot has always been an important factor affecting the quality of castings. During the smelting process of molten metal, the traditional centrifugal casting method often causes slag inclusions (such as oxides, unmelted impurities, etc.) to float on the upper layer of the molten metal due to uneven heating and smelting environment restrictions. These slag inclusions are difficult to effectively remove. These slag inclusions enter the mold with the pouring of the molten metal, and eventually form defects inside or on the surface of the casting, such as pores, inclusions, etc., which seriously reduce the performance and reliability of the casting.

[0003] However, we found in actual use that traditional centrifugal casting equipment mostly uses fixed-position induction coils for heating when melting ingots. This method has a significant problem of uneven heating. Due to the uneven distribution of magnetic flux lines, the temperature field of the molten metal in the crucible is uneven and has no obvious regularity, which not only affects the melting speed and uniformity of the molten metal, but also makes it difficult for slag inclusions to effectively float to the surface of the molten metal. In addition, when tilting the crucible to pour the molten metal, it is difficult for the induction coil to continuously heat the molten metal, resulting in a drop in the temperature of the molten metal. The pouring temperature is difficult to accurately control, further increasing the uncertainty of the casting quality. For this reason, we propose a movable induction heating device for vacuum centrifugal casting equipment. Summary of the invention

[0004] A technical problem to be solved by the present application is: how to design a movable induction heating device for vacuum centrifugal casting equipment that can reduce the amount of slag inclusions in molten metal.

[0005] In order to solve the above technical problems, the embodiment of the present application provides a movable induction heating device for vacuum centrifugal casting equipment, including a box body arranged on a vacuum centrifugal casting chamber, and also including: An inner crucible, wherein the inner crucible is arranged in the box; An outer crucible, which is disposed in the box and coaxially arranged with the inner crucible; an annular plate, the annular plate being disposed between the inner crucible and the outer crucible; A rotating unit is disposed in the box and connected to the inner crucible, and is used to drive the inner crucible to rotate, thereby separating the slag float from the molten metal, and controlling the ingot in the inner crucible to melt; The slag removal unit is arranged in the box body and connected with the annular plate and the rotating unit. It is used to control the lifting and lowering of the annular plate when the inner crucible rotates, so as to discharge the slag included in the upper layer of the molten metal from the inner crucible to the outer crucible.

[0006] In some embodiments, the rotating unit includes a support frame arranged in a box body, the support frame is provided with a driving member for driving the inner crucible to rotate, an induction coil is movably arranged in the box body, a lifting member is arranged in the box body for driving the induction coil to be lifted and lowered along the inner crucible, a sealing plate is arranged at the bottom of the inner crucible, and a contact sealing member is arranged on the induction coil for driving the sealing plate to rotate when the induction coil moves to the bottom of the inner crucible, thereby discharging the molten metal from the inner crucible.

[0007] In some embodiments, the outer crucible is arranged on a support frame, and the driving member includes a driving motor arranged on the support frame, a driving shaft is rotatably arranged on the support frame, a main shaft is rotatably arranged on the support frame, bevel gears are arranged on the driving shaft and the main shaft for matching use, a driving gear is arranged on the main shaft, a crucible frame is rotatably arranged on the support frame, and a gear ring is arranged on the outside of the crucible frame for matching use with the driving gear.

[0008] In some embodiments, the lifting member includes a plurality of guide columns evenly arranged on the crucible frame, a connecting frame is slidably arranged on the guide columns, the induction coil is arranged on the connecting frame, a smelting device and a control power supply connected to the induction coil are arranged on the connecting frame, a screw rod is rotatably arranged on the support frame, the screw rod is connected to the main shaft through a coupling, a lifting frame is threadedly connected to the screw rod, and the connecting frame is rotatably arranged on the lifting frame.

[0009] In some embodiments, the contact closure comprises a rotating shaft rotatably arranged at the bottom of the inner crucible, the sealing plate is arranged on the rotating shaft, one end of the rotating shaft extends to the outside of the inner crucible, a torsion spring 1 is arranged between the rotating shaft and the inner crucible, a positioning seat is arranged at the bottom of the connecting frame, a rotating shaft is rotatably arranged in the positioning seat, a torsion spring 2 is arranged between the rotating shaft and the positioning seat, a connecting rod is arranged on the rotating shaft, a fixed rack is arranged at the end of the connecting rod, a fixed gear in contact with the fixed rack is arranged on the rotating shaft, and a limit block for limiting the connecting rod is arranged on the positioning seat.

[0010] In some embodiments, the slag removal unit includes a fixed shaft rotatably arranged on a support frame, a transmission member is arranged between the driving shaft and the fixed shaft, and is used to drive the fixed shaft to rotate synchronously when the driving shaft rotates, and a reciprocating ejector member in contact with the annular plate is arranged in the box body, and is used to control the reciprocating lifting and lowering of the annular plate when the fixed shaft rotates.

[0011] In some embodiments, the transmission member includes two pulleys respectively disposed on the driving shaft and the fixed shaft, and a transmission belt is disposed between the two pulleys.

[0012] In some embodiments, the reciprocating ejector includes a spring arranged on the inner crucible, the annular plate is arranged at the end of the spring, a rotating rod is arranged on the fixed shaft, a deflection rod is rotatably arranged at the end of the rotating rod, a radial rod is rotatably arranged at the end of the deflection rod, the radial rod can contact the annular plate, a guide seat is arranged in the outer crucible, and the radial rod is slidably arranged in the guide seat.

[0013] In some embodiments, the outer crucible is composed of an outer plate disposed on a support frame, a contact plate fitted with the annular plate, and a slag storage inclined plate disposed between the outer plate and the contact plate.

[0014] In some embodiments, a mounting seat is provided on a side of the connecting rod close to the inner crucible, and a roller in contact with the inner crucible is provided on the mounting seat.

[0015] The present invention has at least the following beneficial effects: 1. When heating the ingot, the staff can use the rotating unit to drive the inner crucible to rotate, so as to separate the slag float and the molten metal, and can control the ingot in the inner crucible to melt, and cooperate with the slag removal unit to control the lifting and lowering of the annular plate when the inner crucible rotates, so as to discharge the slag on the upper layer of the molten metal from the inner crucible to the outer crucible; 2. Through the design of movable induction coil, the induction coil can move from top to bottom to gradually heat and melt the ingot, providing a suitable heat source for different smelting stages, effectively solving the problem of uneven heating in traditional equipment, achieving uniform melting of molten metal, and improving smelting efficiency; 3. The design of the contact closure enables the sealing plate to rotate when the induction coil moves to the bottom of the inner crucible, thereby discharging the molten metal from the inner crucible, ensuring the smooth progress of the pouring process and improving the precise control of the pouring temperature. No additional dumping space and dumping mechanism are required. Through the design of the rotating unit and the slag removal unit, the smelting, slag removal and pouring processes can be completed in the same space, simplifying the equipment structure and reducing the manufacturing cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 For the present invention Figure 1 Schematic diagram of the local cross-section structure; Figure 3 For the present invention Figure 2 Another structural diagram; Figure 4 For the present invention Figure 3 Schematic diagram of the local cross-section structure; Figure 5 For the present invention Figure 4 Schematic diagram of the local cross-section structure; Figure 6 It is a schematic diagram of the structure of the rotating unit of the present invention; Figure 7 For the present invention Figure 6 Schematic diagram of the enlarged structure of the middle A area; Figure 8 For the present invention Figure 2 Schematic diagram of the local cross-section structure; Fig. 9 For the present invention Figure 8 Schematic diagram of the enlarged structure of the middle B area; Fig.10 It is a schematic diagram of the cross-sectional structure of the outer crucible, the inner crucible and the annular plate of the present invention; Fig.11 This is a schematic diagram of the structure of the slag removal unit of the present invention; Fig.12 For the present invention Fig.11 Schematic diagram of the enlarged structure of the middle C area; Fig.13 This is a schematic diagram of the mounting seat and roller mounting structure in Example 2 of the present invention.

[0017] In the figure: 1, box; 2, rotating unit; 21, support frame; 22, induction coil; 23, sealing plate; 3, driving member; 31, driving motor; 32, driving shaft; 33, main shaft; 34, bevel gear; 35, driving gear; 36, crucible frame; 37, gear ring; 4, lifting member; 41, guide column; 42, connecting frame; 43, screw rod; 44, lifting frame; 5, contact sealing member; 51, rotating shaft; 52, torsion spring 1; 53, positioning seat; 54, rotating shaft; 55, Torsion spring 2; 56, connecting rod; 57, fixed rack; 58, fixed gear; 59, limit block; 6, slag removal unit; 61, fixed shaft; 7, transmission member; 71, pulley; 72, transmission belt; 8, reciprocating ejector; 81, spring; 82, rotating rod; 83, deflection rod; 84, radial rod; 85, guide seat; 9, inner crucible; 10, outer crucible; 11, annular plate; 12, outer plate; 13, contact plate; 14, slag storage inclined plate; 15, mounting seat; 16, roller. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] Example 1: Please refer to Figure 1-12 , the present invention provides a technical solution: A movable induction heating device for vacuum centrifugal casting equipment includes a box body 1 arranged on a vacuum centrifugal casting chamber. The box body 1 is a common existing structure and will not be described in detail herein. The box body 1 also includes: An inner crucible 9 is arranged in the box body 1, and a metal ingot for smelting is placed at the bottom of the inner crucible 9. The bottom of the inner crucible 9 is a variable diameter structure, and the bottom of the inner crucible 9 is connected to the mold cavity of the vacuum centrifugal casting chamber through a runner. A magnetic fluid sealer structure is provided at the connection between the bottom of the inner crucible 9 and the mold cavity, which is used to seal the connection to prevent the metal liquid from flowing out; An outer crucible 10, which is disposed in the box 1 and coaxially arranged with the inner crucible 9; An annular plate 11, which is disposed between the inner crucible 9 and the outer crucible 10, and is made of quartz to ensure normal use; The rotating unit 2 is arranged in the box body 1 and connected to the inner crucible 9, and is used to drive the inner crucible 9 to rotate, thereby separating the slag float and the molten metal, and controlling the ingot in the inner crucible 9 to melt; The rotating unit 2 includes a support frame 21 arranged in the box body 1, a driving member 3 is arranged on the support frame 21, and is used to drive the inner crucible 9 to rotate, an induction coil 22 is movably arranged in the box body 1, a lifting member 4 is arranged in the box body 1, and is used to drive the induction coil 22 to move up and down along the inner crucible 9, a sealing plate 23 is arranged at the bottom of the inner crucible 9, and a contact sealing member 5 is arranged on the induction coil 22, and is used to drive the sealing plate 23 to rotate when the induction coil 22 moves to the bottom of the inner crucible 9, thereby discharging the molten metal from the inner crucible 9; The outer crucible 10 is arranged on the support frame 21, and the driving member 3 includes a driving motor 31 arranged on the support frame 21, a driving shaft 32 is rotatably arranged on the support frame 21, a main shaft 33 is rotatably arranged on the support frame 21, and bevel gears 34 used in conjunction with each other are arranged on the driving shaft 32 and the main shaft 33, a driving gear 35 is arranged on the main shaft 33, a crucible frame 36 is rotatably arranged on the support frame 21, and a gear ring 37 used in conjunction with the driving gear 35 is arranged on the outer side of the crucible frame 36; The lifting member 4 includes a plurality of guide posts 41 evenly arranged on the crucible frame 36, a connecting frame 42 is slidably arranged on the guide posts 41, an induction coil 22 is arranged on the connecting frame 42, a smelting device and a control power supply connected to the induction coil 22 are arranged on the connecting frame 42, a screw rod 43 is rotatably arranged on the support frame 21, the screw rod 43 is connected to the main shaft 33 through a coupling, a lifting frame 44 is threadedly connected to the screw rod 43, and the connecting frame 42 is rotatably arranged on the lifting frame 44. The heating method is: the induction coil 22 connects the smelting equipment and the control power supply, and then moves the induction coil 22 from top to bottom to perform induction smelting on the ingot in the inner crucible 9. During the smelting process, as the induction coil 22 moves from top to bottom on the outside of the inner crucible 9, the ingot is gradually melted from top to bottom. In this way, when the induction coil 22 reaches the bottom of the inner crucible 9, the entire ingot is completely melted. Then, the contact sealing member 5 works, the sealing plate 23 is opened, and the molten metal flows from the bottom of the inner crucible 9 into the mold cavity of the vacuum centrifugal casting chamber for centrifugal casting; The contact sealing member 5 includes a rotating shaft 51 rotatably arranged at the bottom of the inner crucible 9, a sealing plate 23 is arranged on the rotating shaft 51, one end of the rotating shaft 51 extends to the outside of the inner crucible 9, a torsion spring 1 52 is arranged between the rotating shaft 51 and the inner crucible 9, a positioning seat 53 is arranged at the bottom of the connecting frame 42, a rotating shaft 54 ​​is rotatably arranged in the positioning seat 53, a torsion spring 2 55 is arranged between the rotating shaft 54 ​​and the positioning seat 53, a connecting rod 56 is arranged on the rotating shaft 54, a fixed rack 57 is arranged at the end of the connecting rod 56, a fixed gear 58 in contact with the fixed rack 57 is arranged on the rotating shaft 51, and a limiting block 59 for limiting the connecting rod 56 is arranged on the positioning seat 53. Because the inner crucible 9 and the connecting frame 42 and other structures rotate synchronously, the fixed rack 57 and the fixed gear 58 can mesh normally; The slag removal unit 6 is arranged in the box body 1 and connected to the annular plate 11 and the rotating unit 2, and is used to control the lifting and lowering of the annular plate 11 when the inner crucible 9 rotates, so as to discharge the slag on the upper layer of the molten metal from the inner crucible 9 to the outer crucible 10; The slag removal unit 6 includes a fixed shaft 61 rotatably arranged on the support frame 21, a transmission member 7 is arranged between the driving shaft 32 and the fixed shaft 61, and is used to drive the fixed shaft 61 to rotate synchronously when the driving shaft 32 rotates, and a reciprocating ejector 8 in contact with the annular plate 11 is arranged in the box body 1, and is used to control the reciprocating lifting and lowering of the annular plate 11 when the fixed shaft 61 rotates; The transmission member 7 includes two pulleys 71 respectively arranged on the driving shaft 32 and the fixed shaft 61, and a transmission belt 72 is arranged between the two pulleys 71; The reciprocating ejector 8 includes a spring 81 arranged on the inner crucible 9, an annular plate 11 is arranged at the end of the spring 81, a rotating rod 82 is arranged on the fixed shaft 61, a deflection rod 83 is rotatably arranged at the end of the rotating rod 82, a radial rod 84 is rotatably arranged at the end of the deflection rod 83, and the radial rod 84 can contact the annular plate 11. A guide seat 85 is arranged in the outer crucible 10, and the radial rod 84 is slidably arranged in the guide seat 85.

[0020] Reference Manual Attached Fig.10 The outer crucible 10 is composed of an outer plate 12 arranged on a support frame 21, a contact plate 13 fitted with the annular plate 11, and a slag storage inclined plate 14 arranged between the outer plate 12 and the contact plate 13. A magnetic fluid sealer structure is provided at the connection between the contact plate 13 and the annular plate 11 to seal the connection to prevent slag inclusion and molten metal from flowing out. The molten metal flowing out of this position can be processed and reused.

[0021] When in use, the rotating unit 2 plays a core role. It drives the inner crucible 9 to rotate, and uses centrifugal force to float the slag to the upper layer of the molten metal. At the same time, the rotating unit 2 also controls the ingot in the inner crucible 9 to melt: The driving motor 31 drives the driving shaft 32 to rotate, and drives the main shaft 33 to rotate through the bevel gear 34. The driving gear 35 on the main shaft 33 can drive the gear ring 37, the crucible frame 36, the inner crucible 9 and the induction coil 22 to rotate synchronously. At the same time, the rotation of the main shaft 33 drives the screw rod 43 to rotate, and the screw rod 43 will drive the lifting frame 44 threadedly connected thereto to start lifting. Because the lifting frame 44 and the connecting frame 42 are rotatably connected, the connecting frame 42 and the induction coil 22 are driven to rise and fall along the inner crucible 9 to start melting the ingot. When the induction coil 22 moves to the bottom of the inner crucible 9, the ingot is completely melted. At the same time, the connecting rod 56 rotates rapidly under the action of the torsion spring 55, and reaches the preset position under the limit of the limit block 59. Continuing to move downward will make the fixed rack 57 contact with the fixed gear 58, driving the rotating shaft 54 ​​and the sealing plate 23 to rotate, and then the molten metal is discharged from the inner crucible 9. The setting of the torsion spring 52 can drive the sealing plate 23 to reset.

[0022] During the melting process of the ingot, the inner crucible 9 rotates continuously to control the lifting and lowering of the annular plate 11, thereby discharging the slag on the upper layer of the molten metal from the inner crucible 9 to the outer crucible 10: When the driving shaft 32 rotates, the fixed shaft 61 is driven to rotate synchronously through the pulley 71 and the conveyor belt. When the fixed shaft 61 rotates, the rotating rod 82 is driven to rotate, and the deflection rod 83 connected to the rotating rod 82 will swing back and forth. Due to the arrangement of the radial rod 84 and the guide seat 85, the radial rod 84 is continuously lifted and lowered, and then contacts and controls the reciprocating lifting and lowering of the annular plate 11 at the bottom. During the lifting and lowering process of the annular plate 11, the slag on the upper layer of the molten metal is cleverly discharged from the inner crucible 9 to the outer crucible 10. Because the annular plate 11 and the radial rod 84 are only in contact connection, the annular plate 11 cannot be displaced upward. The annular plate 11 can be driven to reset by the assumed spring 81, so as to reduce the waste of molten metal while ensuring the discharge of the slag. The design of the outer crucible 10 also fully considers practicality. It consists of an outer plate 12 arranged on a support frame 21, a contact plate 13 fitted with the annular plate 11, and a slag storage inclined plate 14 arranged between the outer plate 12 and the contact plate 13. The connection between the contact plate 13 and the annular plate 11 is also sealed with a magnetic fluid sealer structure to prevent slag inclusion and molten metal from flowing out.

[0023] Example 2: Please refer to Fig.13 , the present invention provides a technical solution: Different from Example 1, a mounting seat 15 is provided on the side of the connecting rod 56 close to the inner crucible 9, and a roller 16 in contact with the inner crucible 9 is provided on the mounting seat 15. Due to the setting of the torsion spring 55, when the positioning seat 53 and the fixed rack 57 and other structures are located on the upper part of the inner crucible 9, the connecting rod 56 will directly contact the inner crucible 9. Therefore, when the lifting and lowering are adjusted, there is a large friction between the two. In order to reduce this friction, the roller 16 is further provided.

[0024] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0025] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A movable induction heating device for vacuum centrifugal casting equipment, comprising a housing (1) arranged on a vacuum centrifugal casting chamber, characterized in that: Also included are: An inner crucible (9), wherein the inner crucible (9) is arranged inside the box (1); An outer crucible (10), wherein the outer crucible (10) is arranged in the box body (1) and is coaxially arranged with the inner crucible (9); an annular plate (11), wherein the annular plate (11) is arranged between the inner crucible (9) and the outer crucible (10); A rotating unit (2), the rotating unit (2) being arranged in the box body (1) and connected to the inner crucible (9), and being used to drive the inner crucible (9) to rotate, thereby separating the slag float and the molten metal, and being able to control the melting of the ingot in the inner crucible (9); A slag removal unit (6) is arranged in the box body (1) and connected to the annular plate (11) and the rotating unit (2), and is used to control the lifting and lowering of the annular plate (11) when the inner crucible (9) rotates, thereby discharging the slag included in the upper layer of the molten metal from the inner crucible (9) into the outer crucible (10).

2. The movable induction heating device for vacuum centrifugal casting equipment according to claim 1, characterized in that: The rotating unit (2) comprises a support frame (21) arranged in a box body (1), a driving member (3) being arranged on the support frame (21) for driving the inner crucible (9) to rotate, an induction coil (22) being movably arranged in the box body (1), a lifting member (4) being arranged in the box body (1) for driving the induction coil (22) to be lifted and lowered along the inner crucible (9), a sealing plate (23) being arranged at the bottom of the inner crucible (9), and a contact sealing member (5) being arranged on the induction coil (22) for driving the sealing plate (23) to rotate when the induction coil (22) moves to the bottom of the inner crucible (9), thereby discharging the molten metal from the inner crucible (9).

3. The movable induction heating device for vacuum centrifugal casting equipment according to claim 2, characterized in that: The outer crucible (10) is arranged on a support frame (21); the driving member (3) comprises a driving motor (31) arranged on the support frame (21); a driving shaft (32) is rotatably arranged on the support frame (21); a main shaft (33) is rotatably arranged on the support frame (21); bevel gears (34) for use with each other are arranged on the driving shaft (32) and the main shaft (33); a driving gear (35) is arranged on the main shaft (33); a crucible frame (36) is rotatably arranged on the support frame (21); a gear ring (37) for use with the driving gear (35) is arranged on the outer side of the crucible frame (36).

4. The movable induction heating device for vacuum centrifugal casting equipment according to claim 3 is characterized in that: The lifting member (4) comprises a plurality of guide posts (41) uniformly arranged on the crucible frame (36); a connecting frame (42) is slidably arranged on the guide posts (41); the induction coil (22) is arranged on the connecting frame (42); a smelting device and a control power supply connected to the induction coil (22) are arranged on the connecting frame (42); a lead screw (43) is rotatably arranged on the support frame (21); the lead screw (43) is connected to the main shaft (33) via a coupling; a lifting frame (44) is threadedly connected to the lead screw (43); and the connecting frame (42) is rotatably arranged on the lifting frame (44).

5. The movable induction heating device for vacuum centrifugal casting equipment according to claim 4, characterized in that: The contact-type sealing member (5) comprises a rotating shaft (51) rotatably arranged at the bottom of the inner crucible (9); the sealing plate (23) is arranged on the rotating shaft (51); one end of the rotating shaft (51) extends to the outside of the inner crucible (9); a first torsion spring (52) is arranged between the rotating shaft (51) and the inner crucible (9); a positioning seat (53) is arranged at the bottom of the connecting frame (42); a rotating shaft (54) is rotatably arranged in the positioning seat (53); a second torsion spring (55) is arranged between the rotating shaft (54) and the positioning seat (53); a connecting rod (56) is arranged on the rotating shaft (54); a fixed rack (57) is arranged at the end of the connecting rod (56); a fixed gear (58) in contact with the fixed rack (57) is arranged on the rotating shaft (51); and a limiting block (59) for limiting the connecting rod (56) is arranged on the positioning seat (53).

6. The movable induction heating device for vacuum centrifugal casting equipment according to claim 5, characterized in that: The slag removal unit (6) comprises a fixed shaft (61) rotatably arranged on a support frame (21); a transmission member (7) is arranged between the drive shaft (32) and the fixed shaft (61) for driving the fixed shaft (61) to rotate synchronously when the drive shaft (32) rotates; and a reciprocating ejector (8) in contact with the annular plate (11) is arranged in the housing (1) for controlling the reciprocating lifting and lowering of the annular plate (11) when the fixed shaft (61) rotates.

7. The movable induction heating device for vacuum centrifugal casting equipment according to claim 6, characterized in that: The transmission member (7) comprises two pulleys (71) respectively arranged on the driving shaft (32) and the fixed shaft (61), and a transmission belt (72) is arranged between the two pulleys (71).

8. The movable induction heating device for vacuum centrifugal casting equipment according to claim 7, characterized in that: The reciprocating ejector (8) comprises a spring (81) arranged on the inner crucible (9), the annular plate (11) is arranged at the end of the spring (81), a rotating rod (82) is arranged on the fixed shaft (61), a deflection rod (83) is rotatably arranged at the end of the rotating rod (82), a radial rod (84) is rotatably arranged at the end of the deflection rod (83), the radial rod (84) is capable of contacting the annular plate (11), and a guide seat (85) is arranged in the outer crucible (10), and the radial rod (84) is slidably arranged in the guide seat (85).

9. The movable induction heating device for vacuum centrifugal casting equipment according to claim 8, characterized in that: The outer crucible (10) is composed of an outer plate (12) arranged on a support frame (21), a contact plate (13) fitted with the annular plate (11), and a slag storage inclined plate (14) arranged between the outer plate (12) and the contact plate (13).

10. The movable induction heating device for vacuum centrifugal casting equipment according to claim 9, characterized in that: A mounting seat (15) is provided on a side of the connecting rod (56) close to the inner crucible (9), and a roller (16) in contact with the inner crucible (9) is provided on the mounting seat (15).

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