A temperature-controlled transfer mechanism for alloy smelting

Abstract

This utility model provides a temperature-controlled transfer mechanism for alloy smelting, comprising: a support pad with two support rails symmetrically mounted on its upper surface, a transfer trolley mounted on the two support rails, and a placement groove for placing a ladle on the upper surface of the transfer trolley; two control frames symmetrically fixed to the support pad; and a limiting part mounted on the upper surface of the transfer trolley to surround and restrict the radial movement of the ladle. This temperature-controlled transfer mechanism for alloy smelting, through the closing parts of the two control frames, can automatically grasp and release the sealing cover. After the cover is closed, a locking part fixes the relative position of the ladle and the sealing cover. Combined with a positioning part, it achieves precise positioning and effective sealing of the ladle during transfer and parking, effectively controlling the temperature of the molten alloy and significantly improving production efficiency and product quality.

Description

Technical Field

[0001] This utility model relates to the field of alloy smelting technology, and more specifically, to a temperature-controlled transfer mechanism for alloy smelting. Background Technology

[0002] In alloy smelting, especially in the production of high-activity, high-value-added alloys such as titanium alloys, high-temperature alloys, and precision alloys, the transfer process of the melt after smelting and before casting is a crucial step. The temperature drop, oxidation, and gas absorption during this process directly determine the metallurgical quality and mechanical properties of the final casting.

[0003] Currently, the industry commonly uses ordinary railcars or forklifts in conjunction with open-top ladles for the transfer of alloy molten metal. However, during the transfer process, the molten metal is exposed to the environment, resulting in significant and uncontrollable heat loss and large fluctuations in pouring temperature. Excessively low temperatures can cause premature solidification of the molten metal, leading to cold shuts or incomplete pouring. Furthermore, open-top transfer exposes the high-temperature molten metal to direct contact with air, making it highly susceptible to oxidation reactions and the formation of oxide inclusions. Simultaneously, the molten metal absorbs gases such as hydrogen, oxygen, and nitrogen from the air, causing defects such as porosity and looseness in the castings. Some transfer equipment is equipped with covers, but the opening and closing of these covers often relies on overhead cranes or manual operation, resulting in poor positioning accuracy, low efficiency, and safety hazards. Additionally, the lack of effective and automated controls for the stopping and locking of the transfer trolley at the workstation affects production cycle time and process stability. Utility Model Content

[0004] The purpose of this invention is to provide a temperature-controlled transfer mechanism for alloy smelting to solve the above-mentioned problems.

[0005] To achieve the above objectives, this utility model provides a temperature-controlled transfer mechanism for alloy smelting, comprising: a bearing pad, two bearing rails symmetrically mounted on the upper surface of the bearing pad, a transfer trolley mounted on the two bearing rails, and a placement groove for placing a ladle on the upper surface of the transfer trolley. Control frames, two of which are symmetrically fixed to the support plate; A limiting part is installed on the upper surface of the transfer trolley to surround and restrict the radial movement of the ladle; A positioning unit is installed on the transfer trolley and the bearing pad, and is used to lock the position of the transfer trolley when the transfer trolley moves to different workstations; The two sealing parts are respectively installed on the two control frames, and one of the sealing parts holds a sealing cover corresponding to the ladle below, for gripping or releasing the sealing cover to complete the closing or opening of the ladle; A locking part is fixed to the outside of the ladle and the closing cover to fix their relative positions after the cover is closed.

[0006] Furthermore, the closure includes a fixed frame disposed within the control frame, a plurality of sliding grooves arranged in a circular array on the fixed frame, a plurality of L-shaped fixing rods respectively fitted and slidably inserted into the plurality of sliding grooves, a plurality of clamping plates respectively fixed to one end of the plurality of L-shaped fixing rods and adapted to the outer wall of the closure cover, a plurality of control protrusions respectively fixed to the other end of the plurality of L-shaped fixing rods, a control disk rotatably mounted on the upper surface of the fixed frame, and a plurality of guide grooves arranged in a circular array on the control disk; The upper ends of the control protrusions are respectively inserted into the guide grooves.

[0007] Furthermore, the enclosure also includes two lifting hydraulic rods symmetrically fixed on the control frame, and a control hydraulic rod hinged to the upper surface of the fixed frame; The telescopic ends of both lifting hydraulic rods are fixedly connected to the upper surface of the fixed frame, and the telescopic end of the control hydraulic rod is hinged to the edge of the control panel.

[0008] Furthermore, the positioning part includes a drive motor fixed inside the transfer trolley, a bidirectional lead screw rotatably mounted on the upper surface of the transfer trolley via a bearing seat and connected to the output end of the drive motor via a bevel gear set, two positioning frames threaded to both ends of the bidirectional lead screw, and several locking parts fixed to the upper surface of the bearing pad. The positioning component includes two support frames symmetrically fixed to the upper surface of the support pad and disposed on both sides of the transfer trolley, and two wedge-shaped positioning blocks respectively fixed on the two support frames and corresponding to the two positioning frames.

[0009] Furthermore, the limiting part includes a plurality of limiting frames fixed in a circular array on the upper surface of the transfer small part, and a plurality of rubber wheels rotatably mounted on the upper ends of the plurality of limiting frames and abutting against the outer wall of the steel ladle.

[0010] Furthermore, the locking part includes two locking plates fixed in a ring array at the lower end of the closed cover, two locking hydraulic rods fixed in a ring array at the upper end of the outer wall of the ladle, two locking pressure plates fixed to the telescopic ends of the two locking hydraulic rods, and two wedge-shaped locking grooves respectively opened on the two locking plates and corresponding to the two locking pressure plates. When the cover is closed on the ladle, the two locking hydraulic rods pull the two locking pressure plates to move towards each other, respectively engaging in the two wedge-shaped locking grooves.

[0011] Furthermore, both positioning frames are provided with docking grooves, and guide rollers are symmetrically and rotatably installed on the inner walls of both docking grooves.

[0012] Furthermore, the upper surface of the transfer trolley is fixedly connected to a guide rail, and both positioning frames are fixedly connected to guide blocks that are slidably connected to the guide rail.

[0013] Compared with the prior art, the embodiments of this utility model have the following beneficial effects: This temperature-controlled transfer mechanism for alloy smelting, through its fixed-position sealing section and gripping sealing cover, facilitates automatic and precise closing and opening of the ladle when the transfer trolley moves the ladle away from the smelting furnace or near casting equipment. The closing and opening process of the sealing cover requires no manual or overhead crane intervention, resulting in a high degree of automation and safety. Furthermore, with the cooperation of the locking section, hydraulic drive, and wedge groove, a strong and reliable mechanical locking force is provided after closing, ensuring the rigidity and sealing stability of the connection between the ladle and the sealing cover during the transfer process. This effectively prevents loosening or leakage caused by vibration and further guarantees the temperature stability of the alloy solution inside the ladle during transfer.

[0014] This temperature-controlled transfer mechanism for alloy smelting, through its positioning part, drives a bidirectional lead screw to rotate via a drive motor, causing two positioning frames to move towards or away from each other, precisely engaging with wedge-shaped positioning blocks fixed on the bearing pad. This achieves precise positioning and mechanical self-locking of the transfer trolley at multiple positions on the horizontal plane, effectively eliminating the trolley's offset during pouring or stopping, ensuring accurate docking of the sealing cover and the ladle, and guaranteeing the stability of the ladle when being picked up and placed on the transfer trolley. Attached Figure Description

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0016] Figure 1 A perspective view of the present invention is shown; Figure 2 A partial side view of the present invention is shown; Figure 3 A partial top perspective view of the present invention is shown; Figure 4 A partial perspective view of the present invention is shown; Figure 5 A partial cross-sectional perspective view of this utility model is shown; Figure 6 A partially disassembled perspective view of this utility model is shown.

[0017] In the picture 1. Bearing pad; 2. Bearing rail; 3. Transfer trolley; 4. Steel ladle; 5. Placement groove; 6. Control frame; 7. Limiting part; 8. Positioning part; 9. Enclosure part; 10. Enclosure cover; 11. Locking part; 12. Fixing frame; 13. Slide groove; 14. L-shaped fixing rod; 15. Clamping plate; 16. Control convex rod; 17. Control panel; 18. Guide groove; 19. Lifting hydraulic rod; 20. Control hydraulic rod; 21. Drive motor; 22. Two-way lead screw; 23. Positioning frame; 24. Clamping component; 25. Bearing frame; 26. Wedge-shaped positioning block; 27. Limiting frame; 28. Rubber wheel; 29. ​​Locking plate; 30. Locking hydraulic rod; 31. Locking pressure plate; 32. Wedge-shaped locking groove; 33. Docking groove; 34. Guide roller; 35. Guide rail; 36. Guide block. Detailed Implementation

[0018] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0019] like Figure 1-6 As shown, a temperature-controlled transfer mechanism for alloy smelting includes: a bearing pad 1, two bearing rails 2 symmetrically mounted on the upper surface of the bearing pad, a transfer trolley 3 mounted on the two bearing rails 2, and a placement groove 5 for placing a ladle 4 on the upper surface of the transfer trolley 3. Control frame 6, two control frames 6 are symmetrically fixed on the bearing pad 1; The limiting part 7 is installed on the upper surface of the transfer trolley 3 and is used to surround and restrict the radial movement of the ladle 4; Positioning part 8 is installed on the transfer trolley 3 and the bearing pad 1, and is used to lock the position of the transfer trolley 3 when the transfer trolley 3 moves to different workstations; The two sealing parts 9 are respectively installed on the two control frames 6, and one of the sealing parts 9 holds a sealing cover 10 corresponding to the ladle 4 below, for gripping or releasing the sealing cover 10 to complete the closing or opening of the ladle 4. Locking part 11, the locking part 11 is fixed to the outside of the steel ladle 4 and the closing cover 10, and is used to fix the relative position of the two after the cover is closed; When the transfer trolley 3 is in the starting position, the ladle 4 containing high-temperature alloy liquid is hoisted into the placement slot 5 of the transfer trolley 3. During the hoisting process, several flexible rubber wheels 28 in the limiting part 7 can provide certain guidance to ensure that the ladle 4 can be accurately inserted into the placement slot 5. Furthermore, as the transfer trolley 3 runs along the carrying track 2, the limiting part 7 surrounding the ladle 4 continuously constrains the ladle 4 through its flexible rubber wheels 28 to prevent it from shaking and ensure stable transportation. After the ladle 4 is placed stably in the placement slot 5, the transfer trolley 3 moves the ladle 4 to below one of the control frames 6. At this time, the sealing part 9 operates, carrying the sealing cover 10 down to the ladle 4 opening to seal the ladle 4. This prevents the high-temperature molten material inside the ladle 4 from directly contacting the air during subsequent transfer, thus minimizing heat loss and ensuring the quality of the alloy melt after transfer. Simultaneously, the locking part 11 operates at the moment the sealing cover 10 closes on the ladle 4. The two locking hydraulic rods 30 on the ladle 4 retract, pulling the two locking pressure plates 31 to move horizontally towards each other, engaging with the two wedge-shaped locking grooves 32 on the sealing cover 10. This generates a large vertical clamping force, ensuring a reliable seal between the sealing cover 10 and the ladle 4, thus ensuring the quality of the ladle. The airtightness of the ladle 4 further enhances the isolation effect between the alloy melt inside the ladle 4 and the external environment. When the ladle 4 moves to another control frame 6, the sealing part 9 is activated, which can lift the sealing part from the ladle 4 and move it upward, leaving space for subsequent operations, facilitating the lifting of the ladle 4 and the dumping of the internal melt. At the same time, when the transfer trolley 3 runs to different workstations, the positioning part 8 is activated, which can make the two positioning frames 23 extend towards each other and accurately wedge into the outside of the wedge-shaped positioning block 26 fixed on the bearing pad 1, firmly locking the transfer trolley 3 in the workstation, eliminating any possibility of movement, ensuring the accuracy of picking up and placing the ladle 4 on the transfer trolley 3, as well as the accuracy of picking up and placing the sealing part on the ladle 4, and ensuring the safety of the ladle 4 during placement and transfer.

[0020] Optionally, the closing part 9 includes a fixing frame 12 disposed in the control frame 6, a plurality of sliding grooves 13 arranged in a ring array on the fixing frame 12, a plurality of L-shaped fixing rods 14 respectively fitting and slidingly inserted into the plurality of sliding grooves 13, a plurality of clamping plates 15 respectively fixed to one end of the plurality of L-shaped fixing rods 14 and adapted to the outer wall of the closing cover 10, a plurality of control protrusions 16 respectively fixed to the other end of the plurality of L-shaped fixing rods 14, a control disk 17 rotatably mounted on the upper surface of the fixing frame 12, and a plurality of guide grooves 18 arranged in a ring array on the control disk 17; The upper ends of several of the control protrusions 16 are respectively inserted into several of the guide grooves 18; When the ladle 4 is moved by the transfer trolley 3 to a position directly below one of the control frames 6, the power source drives the control disk 17 to rotate, causing several control protrusions 16 to move in several guide grooves 18. The contour of the guide grooves 18 exerts a force on the control protrusions 16, pushing them to drive several L-shaped fixing rods 14 to move radially in several sliding grooves 13, simultaneously moving towards or away from the center of the fixing frame 12. When the L-shaped fixing rods 14 simultaneously approach the center of the fixing frame 12 and converge towards the center, they cause several clamping plates 15 to simultaneously contact and clamp the outer wall of the sealing cover 10. The clamping plates 15 can be L-shaped, which can support the bottom edge of the sealing cover 10 while clamping the outer wall of the sealing cover 10, ensuring the stability of the clamping grip on the sealing cover 10. When the L-shaped fixing rods 14 simultaneously move away from the center of the fixing frame 12 and simultaneously open outward, the clamping plates 15 will simultaneously release the sealing cover 10, thus facilitating the rapid closing and opening of the ladle 4 during the transfer process.

[0021] Optionally, the enclosure 9 also includes two lifting hydraulic rods 19 symmetrically fixed on the control frame 6, and a control hydraulic rod 20 hinged to the upper surface of the fixed frame 12; The telescopic ends of both lifting hydraulic rods 19 are fixedly connected to the upper surface of the fixed frame 12, and the telescopic end of the control hydraulic rod 20 is hinged to the edge of the control panel 17; In use, the two lifting hydraulic rods 19 can control the fixed frame 12 to move vertically in a straight line, so that the sealing part 9 can move up after grabbing the sealing cover 10, leaving space for the transfer trolley 3 and the steel ladle 4 to pass through. It can also quickly move the grabbed sealing cover 10 down to close the steel ladle 4. The two lifting hydraulic rods 19 are symmetrically arranged to ensure the balance and stability of the force during the lifting and lowering process, and to prevent the mechanism from jamming or tilting. The control hydraulic rod 20 is a power source that can drive the control panel 17 to rotate in both directions during use, thereby driving the sealing part 9 to perform the clamping and placing operations on the sealing cover 10.

[0022] Optionally, the positioning part 8 includes a drive motor 21 fixed inside the transfer trolley 3, a bidirectional lead screw 22 rotatably mounted on the upper surface of the transfer trolley 3 via a bearing seat and connected to the output end of the drive motor 21 via a bevel gear set, two positioning frames 23 threadedly connected to both ends of the bidirectional lead screw 22, and several locking parts 24 fixed on the upper surface of the bearing pad 1. The positioning component 24 includes two support frames 25 symmetrically fixed to the upper surface of the support pad 1 and disposed on both sides of the transfer trolley 3, and two wedge-shaped positioning blocks 26 respectively fixed on the two support frames 25 and corresponding to the two positioning frames 23. When the transfer trolley 3 carrying the ladle 4 moves to the target workstation, such as under the two control frames 6, or at the pick-up / placement position of the ladle 4, the drive motor 21 operates, changing the power direction through the bevel gear set, driving the bidirectional lead screw 22 to rotate, thereby causing the two positioning frames 23 to move synchronously in opposite directions in a linear motion. The two positioning frames 23 extend outward synchronously from both sides of the transfer trolley 3, and their front ends contact the inclined surfaces of the wedge-shaped positioning blocks 26 fixedly installed on the bearing pad 1. During the continuous movement of the two positioning frames 23, the two positioning frames 23... Once locked in place, the wedge-shaped positioning block 26 fixed on the bearing pad 1 is wedge-tightly on the inclined surface, ensuring the stability of the transfer trolley 3 after it stops moving. It will not shift its position due to external impacts, ensuring the absolute stillness of the ladle 4 at the work station, improving the safety and stability of the operation, and ensuring the accuracy of the placement and removal of the ladle 4, as well as the placement and removal of the sealing cover 10 on the ladle 4. Furthermore, after the transfer trolley 3 is locked, even if the power supply to the drive motor 21 is cut off, the current locked position can still be maintained due to the self-locking property of the bidirectional lead screw 22, avoiding positioning failure.

[0023] Optionally, the limiting part 7 includes a plurality of limiting frames 27 fixed in a ring array on the upper surface of the transfer small, and a plurality of rubber wheels 28 rotatably mounted on the upper ends of the plurality of limiting frames 27 and abutting against the outer wall of the steel ladle 4. Multiple limiting frames 27 with rubber wheels 28 surround the ladle 4. The rubber wheels 28 contact the outer wall of the ladle 4 but allow relative rolling. Thus, when the ladle 4 is placed, it can move vertically under the guidance of the rubber wheels 28, ensuring accurate insertion into the placement slot 5. When the ladle 4 is stably placed, the limiting frames 27 encircle the ladle 4 in a ring, and the outer circumferential surfaces of the rubber wheels 28 on the ladle 4 directly contact the outer wall of the ladle 4 and apply a small preload. When the transfer trolley 3 starts, brakes, or vibrates during operation on the track, the ladle 4 tends to move relative to the trolley due to inertia. At this time, the rubber wheels 28 can provide effective restraint and cushioning, ensuring the stability of the ladle 4 during transfer, greatly reducing the risk of alloy liquid splashing or trolley instability caused by shaking, and improving operational safety.

[0024] Optionally, the locking part 11 includes two locking plates 29 fixed in a ring array at the lower end of the closed cover 10, two locking hydraulic rods 30 fixed in a ring array at the upper end of the outer wall of the ladle 4, two locking pressure plates 31 fixed to the telescopic ends of the two locking hydraulic rods 30, and two wedge-shaped locking grooves 32 respectively opened on the two locking plates 29 and corresponding to the two locking pressure plates 31. When the closing cover 10 is closed on the ladle 4, the two locking hydraulic rods 30 pull the two locking pressure plates 31 to move towards each other and respectively engage in the two wedge-shaped locking grooves 32; When the sealing cover 10 is delivered to the ladle 4 by the sealing part 9 and closed, the two locking hydraulic rods 30 retract synchronously, pulling the two locking pressure plates 31 to move towards each other in the horizontal direction and respectively engage in the wedge-shaped locking grooves 32 of the two locking plates 29. Since the contact surface is inclined, the horizontal thrust can be decomposed into part of the vertical pressure, thereby pressing the sealing cover 10 tightly downward, so that the sealing material between the sealing cover 10 and the ladle 4 opening is fully compressed to form an effective seal, ensuring the airtightness of the ladle 4, greatly reducing the contact between the alloy liquid and the air and the loss of heat, and achieving efficient temperature control; at the same time, the two locking pressure plates 31 move towards each other and contact the locking plates 29, ensuring that the locking forces acting on both sides of the sealing cover 10 are equal in magnitude and symmetrical in direction, so that the horizontal forces of the two locking pressure plates 31 can cancel each other out, ensuring the stability of the downward pressure of the two pressure plates and ensuring the clamping force on the sealing cover.

[0025] Optionally, both positioning frames 23 are provided with docking grooves 33, and guide rollers 34 are symmetrically and rotatably installed on the inner walls of both docking grooves 33. When the two positioning frames 23 extend out of the transfer trolley 3 and come into contact with the two wedge-shaped positioning blocks 26 respectively, several guide rollers 34 pre-contact the two wedge-shaped positioning blocks 26, so that the contact between the positioning frame 23 and the wedge-shaped positioning blocks 26 is rolling friction, thereby guiding the two positioning frames 23 to smoothly slide into the correct position, ensuring that the contact between the positioning frame 23 and the wedge-shaped positioning blocks 26 is stable and smooth, effectively reducing the wear of the wedge-shaped positioning blocks 26 and the positioning frame 23, and ensuring the accuracy for long-term use.

[0026] Optionally, the upper surface of the transfer trolley 3 is fixedly connected to the guide rail 35, and each of the two positioning frames 23 is fixedly connected to the guide block 36 which is slidably connected to the guide rail 35; When the two positioning frames 23 move, they will cause the two guide blocks 36 to slide on the guide rail 35, providing precise linear guidance for the movement of the positioning frames 23 on the transfer trolley 3, preventing them from jamming or deviating due to uneven force, thereby ensuring accurate and reliable docking between the two positioning frames 23 and the locking parts 24, and ensuring the stability of the two positioning frames 23 on the transfer trolley 3 before and after movement, so as to ensure the overall stability of the transfer trolley 3 after positioning, and not easily deviating due to external impact.

[0027] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A temperature-controlled transfer mechanism for alloy smelting, characterized in that, include: The bearing pad (1) has two bearing rails (2) symmetrically installed on its upper surface. The two bearing rails (2) are set on a transfer trolley (3). The upper surface of the transfer trolley (3) is provided with a placement groove (5) for placing the ladle (4). Control frame (6), two control frames (6) are symmetrically fixed on the bearing pad (1); A limiting part (7) is installed on the upper surface of the transfer trolley (3) for surrounding and restricting the radial movement of the ladle (4); Positioning part (8), the positioning part (8) is installed on the transfer trolley (3) and the bearing pad (1), and is used to lock the position of the transfer trolley (3) when the transfer trolley (3) moves to different work stations; The two sealing parts (9) are respectively installed on the two control frames (6), and one of the sealing parts (9) holds a sealing cover (10) corresponding to the ladle (4) below, for gripping or releasing the sealing cover (10) to complete the closing or opening of the ladle (4); Locking part (11) is fixed to the outside of the steel ladle (4) and the closing cover (10) to fix their relative positions after the cover is closed.

2. The temperature-controlled transfer mechanism for alloy smelting as described in claim 1, characterized in that, The enclosure (9) includes a fixed frame (12) disposed in the control frame (6), a plurality of sliding grooves (13) arranged in a ring array on the fixed frame (12), a plurality of L-shaped fixing rods (14) respectively fitted and slidably inserted in the plurality of sliding grooves (13), a plurality of clamps (15) respectively fixed to one end of the plurality of L-shaped fixing rods (14) and adapted to the outer wall of the enclosure cover (10), a plurality of control protrusions (16) respectively fixed to the other end of the plurality of L-shaped fixing rods (14), a control disk (17) rotatably mounted on the upper surface of the fixed frame (12), and a plurality of guide grooves (18) arranged in a ring array on the control disk (17). The upper ends of several of the control protrusions (16) are respectively inserted into several of the guide grooves (18).

3. The temperature-controlled transfer mechanism for alloy smelting as described in claim 2, characterized in that, The enclosure (9) also includes two lifting hydraulic rods (19) symmetrically fixed on the control frame (6) and a control hydraulic rod (20) hinged to the upper surface of the fixed frame (12). The telescopic ends of the two lifting hydraulic rods (19) are fixedly connected to the upper surface of the fixed frame (12), and the telescopic end of the control hydraulic rod (20) is hinged to the edge of the control panel (17).

4. The temperature-controlled transfer mechanism for alloy smelting as described in claim 3, characterized in that, The positioning part (8) includes a drive motor (21) fixed in the transfer trolley (3), a bidirectional lead screw (22) rotatably mounted on the upper surface of the transfer trolley (3) through a bearing seat and connected to the output end of the drive motor (21) through a bevel gear set, two positioning frames (23) threaded to both ends of the bidirectional lead screw (22), and several locking parts (24) fixed on the upper surface of the bearing pad (1). The positioning component (24) includes two support frames (25) symmetrically fixed on the upper surface of the support pad (1) and set on both sides of the transfer trolley (3), and two wedge-shaped positioning blocks (26) respectively fixed on the two support frames (25) and respectively corresponding to the two positioning frames (23).

5. A temperature-controlled transfer mechanism for alloy smelting as described in claim 4, characterized in that, The limiting part (7) includes a plurality of limiting frames (27) fixed in a ring array on the upper surface of the transfer trolley (3), and a plurality of rubber wheels (28) rotatably mounted on the upper end of the plurality of limiting frames (27) and abutting against the outer wall of the steel ladle (4).

6. The temperature-controlled transfer mechanism for alloy smelting as described in claim 3, characterized in that, The locking part (11) includes two locking plates (29) fixed in a ring array at the lower end of the closed cover (10), two locking hydraulic rods (30) fixed in a ring array at the upper end of the outer wall of the steel ladle (4), two locking pressure plates (31) fixed at the telescopic ends of the two locking hydraulic rods (30), and two wedge-shaped locking grooves (32) respectively opened on the two locking plates (29) and corresponding to the two locking pressure plates (31). When the closing cover (10) is closed on the ladle (4), the two locking hydraulic rods (30) pull the two locking pressure plates (31) to move towards each other and respectively engage in the two wedge-shaped locking grooves (32).

7. A temperature-controlled transfer mechanism for alloy smelting as described in claim 4, characterized in that, Both positioning frames (23) are provided with docking grooves (33), and guide rollers (34) are symmetrically mounted on the inner walls of both docking grooves (33).

8. A temperature-controlled transfer mechanism for alloy smelting as described in claim 7, characterized in that, The upper surface of the transfer trolley (3) is fixedly connected to the guide rail (35), and the two positioning frames (23) are fixedly connected to the guide block (36) which is slidably connected to the guide rail (35).

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