A melting furnace for aluminum alloy refining

Abstract

The present invention relates to the technical field of smelting furnaces, and specifically discloses a smelting furnace for aluminum alloy refining, comprising a base, a crucible main body, a crucible base, a lower furnace body, an upper furnace body and a vacuum system, wherein the lower end of the crucible main body is fixedly connected with a convex ring, the crucible base comprises a mounting sleeve, a plurality of buckling parts and a support seat, the buckling parts are slidably fitted on the mounting sleeve, the support seat is slidably fitted on the mounting sleeve, a guide ring is rotatably fitted above the mounting sleeve, a pushing unit is connected to the support seat, and a smelting space for heating the fusion is formed between the upper furnace body, the crucible main body and the crucible base; the present invention can make the plurality of buckling parts approach or move away from the convex ring on the crucible main body through the rotation of the guide ring, so as to realize that the crucible base fixes the position of the crucible main body or releases the position fixation of the crucible main body, thereby realizing the effect of rapid installation and automatic separation between the crucible main body and the crucible base.

Description

Technical Field

[0001] The present invention relates to the technical field of smelting furnaces, and in particular to a smelting furnace used for aluminum alloy refining. Background Art

[0002] Aluminum alloy is an aluminum-based alloy with a certain amount of other alloying elements added. It is a light metal material. Depending on the addition of other alloying elements, aluminum alloys can be used in various fields such as electronics, construction, automotive, and aerospace. Titanium-aluminum alloy is a high-performance intermetallic compound alloy composed primarily of titanium (Ti) and aluminum (Al). It combines lightweight, high strength, and excellent high-temperature performance. It is mainly used in the aerospace field. In related technologies, vacuum consumable melting is commonly used to produce titanium-aluminum alloys to reduce the alumina slag generated during the melting process and improve the material's mechanical properties and corrosion resistance.

[0003] The vacuum consumable melting method requires using a press to prepare the raw materials into electrode blocks, and then placing the welded electrode blocks into a vacuum consumable arc furnace for melting. The melted titanium-aluminum alloy has a good crystal structure and uniform chemical composition. After being taken out and slowly cooled to room temperature, the next processing operation can be carried out.

[0004] A Chinese patent with authorization announcement number CN117490412B discloses a discharge device for a vacuum melting furnace and a vacuum melting furnace thereof. The patent includes a base, a supporting plate for supporting the charge is slidably connected to the inside of the base, a lifting ring is sleeved on the outside of the base, a first notch is evenly opened at the inner edge of the lifting ring, a diagonal support rod is hinged inside the first notch, a second notch is evenly opened at the outer edge of the base, and the first notch corresponds to the second notch one by one; a fixed frame is hinged inside the second notch, and the upper end of the diagonal support rod is hinged to the fixed frame; an unlocking mechanism is arranged between the supporting plate and the fixed frame.

[0005] The above patent enables personnel to knock on the charge from above to move the supporting plate and the charge downward together during the unloading operation, thereby separating the charge from the inner wall of the crucible and reducing the difficulty of unloading. At the same time, the linkage effect generated by the supporting plate can release the lock on the crucible by the fixing frame, allowing personnel to achieve the unloading purpose with fewer operating steps, and improving the overall efficiency of the vacuum melting work through rapid disassembly and assembly.

[0006] However, the crucible and base are fixed together by bolts in this patent, which is cumbersome, time-consuming, and labor-intensive. The bolts need to be manually disassembled and assembled one by one. Furthermore, when removing the crucible body from the lower furnace body, the crucible base and the crucible body need to be separated. The crucible body is still hot during removal, so removing the bolts between the crucible body and the base is dangerous. Therefore, a new type of melting furnace is needed to solve the problem of cumbersome assembly and disassembly of the crucible body and the base. Summary of the Invention

[0007] The present invention provides a smelting furnace for aluminum alloy refining, aiming to solve the technical problem in the related art that the bolt connection between the crucible and the base is complicated, time-consuming and labor-intensive during installation or disassembly.

[0008] The smelting furnace for aluminum alloy refining of the present invention comprises: a base, a crucible body, a lower furnace body, an upper furnace body, a vacuum system and a crucible base;

[0009] A convex ring is fixedly connected to the lower end of the crucible body;

[0010] The lower furnace body is arranged below the base;

[0011] The upper furnace body is arranged above the base;

[0012] The vacuum system is arranged above the base and connected to the upper furnace body;

[0013] The crucible base includes a mounting sleeve, a fastening piece and a support seat. The support seat is located at the bottom of the crucible body, and its top end extends into the crucible body. The top end of the fastening piece can be engaged with the convex ring, and the bottom end can be engaged with the support seat. The mounting sleeve is slidably fitted on the support seat, and the mounting sleeve and the fastening piece are slidably fitted. A guide ring is rotatably fitted on the mounting sleeve, and the rotation of the guide ring can drive the fastening piece to move radially along the mounting sleeve, thereby achieving fixation and unlocking between the support seat and the crucible body.

[0014] Beneficial effect: Through the rotation of the guide ring, multiple fasteners can be moved close to or away from the convex ring on the crucible body. When the guide ring rotates forward, the fasteners move radially inward along the mounting sleeve and close to the convex ring, and the fasteners can be engaged with the convex ring, thereby fixing the position of the crucible base to the crucible body. When the guide ring moves in the reverse direction, the fasteners move radially outward along the mounting sleeve and away from the convex ring, thereby releasing the engagement between the fasteners and the convex ring, and then releasing the position fixation of the crucible body. By driving the fasteners close to or away from the convex ring by the guide ring, the crucible body and the crucible base can be quickly installed and automatically separated, which solves the problem of time-consuming and labor-intensive threaded connection between the crucible body and the crucible base.

[0015] Preferably, a mounting groove is provided inside the mounting sleeve, the fastening member is located in the mounting groove, and limiting grooves are provided on both sides of the mounting groove. The fastening member includes a fastening plate, the upper end of the fastening plate passes through the mounting groove and extends to the outside of the mounting groove, and a groove is provided on the upper end of the fastening plate on one side facing the support seat, and the groove is used in conjunction with the convex ring.

[0016] The effect is that by arranging the installation groove in the installation sleeve, the fastener is slidably fitted in the installation groove, and the installation groove can limit the fastener to prevent the fastener from deflecting when moving radially along the installation sleeve.

[0017] Preferably, a push arm is fixedly connected to the lower end of the snap plate on one side facing the support seat, and the end of the push arm away from the snap plate passes through the mounting slot and is used in conjunction with the support seat. Both sides of the snap part are fixedly connected to limit blocks, and the limit blocks are slidably fitted in the limit slot.

[0018] The effect is that the fastening member is slidably engaged in the limiting groove through the limiting block, which can prevent the fastening member from being deflected during the movement.

[0019] Preferably, the limiting groove is arranged to be tilted downward toward one end of the support seat.

[0020] The effect is that the inclined setting of the limiting groove can make the buckling plate squeeze the convex ring tighter when it approaches the convex ring.

[0021] Preferably, a plurality of second guide grooves and a plurality of third guide grooves are provided on the inner side of the guide ring, the third guide groove is located between two adjacent second guide grooves, and an inclined transition surface is provided between the second guide groove and the third guide groove to facilitate the snapping plate to move from the second guide groove to the third guide groove, the second guide groove is used in conjunction with the snapping plate, and a toggle plate is fixedly connected to the top of the guide ring.

[0022] The effect is that a convex structure is formed between two adjacent second guide grooves, and the third guide groove is located at the inner end of the convex structure. When the guide ring rotates, the fastener can move along the inclined transition surface between the second guide groove and the third guide groove, so that the convex structure of the guide ring can squeeze the fastener during the movement, thereby making the fastener close to the support seat. At the same time, the convex structure can also limit the fastener, thereby preventing the fastener from moving radially outward along the mounting sleeve.

[0023] Preferably, a positioning groove is provided at the bottom of the mounting sleeve, a through hole is provided on the mounting sleeve and is connected to the positioning groove, a pushing unit is provided on the support seat, and the pushing unit includes a guide plate and a fixed plate, the fixed plate is fixedly connected to the support seat and is located in the positioning groove, the fixed plate is arranged along the radial direction of the support seat, the guide plate is fixed on the fixed plate, and the guide plate is arranged along the axial direction of the support seat.

[0024] Preferably, a stopper is fixedly connected to the inner side of the guide ring, the guide plate passes through the through hole and is used in conjunction with the stopper, and the guide plate has an inclined surface at one end facing the stopper.

[0025] The effect is that the stopper can stop against the inclined surface of the guide plate. When the guide plate moves upward, the inclined surface of the guide plate stops against the stopper and pushes the stopper to move along the inclined surface of the guide plate, and then the stopper pushes the guide ring to rotate in the opposite direction, so that the fastener releases the fixation of the crucible body.

[0026] Preferably, a first guide groove is provided on the side wall of the support seat, and the ejection arm corresponds to the first guide groove and is used in conjunction with the first guide groove.

[0027] Preferably, the first guide groove includes a first groove and a second groove, and there is a transition surface between the first groove and the second groove, the transition surface can be an arc surface or a chamfered surface, the lower end of the second groove is an inclined surface, the upper top angle of one end of the pushing arm facing the support seat is a right angle, and the lower top angle of the pushing arm is a rounded corner.

[0028] The effect is that: when the support seat is lowered, the push arm and the first groove cooperate to make the snap plate move closer to the support seat, so that the snap plate can better buckle the convex ring, solving the problem of loose contact and buckling between the snap plate and the convex ring caused by long-term friction between the guide ring and the snap plate; when the support seat is raised, the push arm and the second groove cooperate to make the snap plate move away from the support seat, so that the snap plate can release the position restriction of the crucible body or the fusion.

[0029] Preferably, a bottom plate is fixedly connected to the top of the support seat, the mounting sleeve has a mounting hole corresponding to the support seat, the diameter of the bottom plate is larger than the diameter of the mounting hole, and the diameter of the bottom plate is equal to the inner diameter of the crucible body.

[0030] The effect is that the diameter of the bottom plate is larger than the diameter of the mounting hole, so that the support seat is restricted on the mounting sleeve and the support seat is prevented from falling off the mounting sleeve. The diameter of the bottom plate is equal to the inner diameter of the crucible body, so that the bottom plate enters the crucible body and seals the bottom of the crucible body.

[0031] By adopting the above technical solution, the beneficial effects of the present invention are:

[0032] 1. The rotation of the guide ring can make multiple fastening parts approach or move away from the convex ring on the crucible body. When the guide ring rotates forward, the fastening parts move inward along the radial direction of the mounting sleeve and approach the convex ring, and the fastening parts can be engaged with the convex ring, thereby fixing the position of the crucible base to the crucible body. When the guide ring moves in the reverse direction, the fastening parts move outward along the radial direction of the mounting sleeve and away from the convex ring, thereby releasing the engagement between the fastening parts and the convex ring, and then releasing the position fixation of the crucible body. By driving the fastening parts close to or away from the convex ring by the guide ring, the crucible body and the crucible base can be quickly installed and automatically separated, which solves the problem of time-consuming and labor-intensive threaded connection between the crucible body and the crucible base.

[0033] 2. After the crucible body and crucible base carrying the fusion are taken out of the lower furnace body and cooled, they are placed on an external lifting platform. After the lifting platform contacts the support seat, the support seat and the lifting platform collide to generate vibration force, which is transmitted to the crucible body. The vibration separates the crucible body and the fusion, preventing the fusion from adhering to the inner wall of the crucible body and making it impossible to separate.

[0034] 3. After the crucible body is removed, the lifting platform is lowered again. The support seat uses the gravity of the fusion to lower the snap plates on the push-up arm, so that multiple snap plates contact the fusion and support the fusion to prevent the fusion from tipping over due to its vertical height. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 It is a schematic structural diagram of a smelting furnace for aluminum alloy refining according to the present invention.

[0036] Figure 2 It is a schematic diagram of the cooperation between the crucible base and the crucible body of the present invention.

[0037] Figure 3 This is a schematic structural diagram of the crucible base relative to the crucible body in the initial first state of the present invention.

[0038] Figure 4 It is a schematic structural diagram of the second state in which the crucible base of the present invention is fixed to the crucible body.

[0039] Figure 5 It is a schematic structural diagram of the third state of the crucible base fixing the fusion material according to the present invention.

[0040] Figure 6 It is a structural schematic diagram of the crucible base of the present invention.

[0041] Figure 7 It is a front view of the fastening member of the present invention.

[0042] Figure 8 It is a schematic diagram of the cross-sectional structure of the installation sleeve of the present invention.

[0043] Figure 9 It is a structural schematic diagram of the guide ring of the present invention.

[0044] Figure 10 It is a bottom view of the mounting sleeve of the present invention.

[0045] Figure 11 It is a structural schematic diagram of the guide plate of the present invention.

[0046] Reference numerals:

[0047] 1. Base; 2. Crucible body; 3. Upper furnace body; 4. Crucible base; 5. Lower furnace body; 6. Vacuum system; 7. Frame; 21. Raised ring; 22. Fusion material; 40. Mounting sleeve; 41. Fastener; 42. Support seat; 43. Bottom plate; 44. Guide ring; 45. Mounting groove; 47. Positioning groove; 48. Guide plate; 401. Fastener plate; 411. Groove; 412. Push arm; 413. Limit block; 414. Through hole; 421. First guide groove; 441. Toggle plate; 442. Second guide groove; 443. Stop block; 444. Third guide groove; 451. Limit groove; 481. Fixing plate; 4211. First groove; 4212. Second groove. DETAILED DESCRIPTION

[0048] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0049] like Figures 1 to 5 As shown, the present invention provides a melting furnace for aluminum alloy refining, comprising a base 1, a crucible body 2, an upper furnace body 3, a crucible base 4, a lower furnace body 5, a vacuum system 6 and a frame 7, wherein the base 1 is used to support each system, the crucible body 2 is used to hold the fusion 22, the upper furnace body 3 can cooperate with the lower furnace body 5 to form a closed melting space, the crucible base 4 is used to support the crucible body 2, and the vacuum system 6 is used to extract air in the melting space, thereby placing the melting space in a vacuum environment.

[0050] The vacuum system 6 is a vacuum extraction device in conventional technology, which is fixedly arranged on the base 1. The frame 7 is rotatably connected to the vacuum system 6. The bottom of the frame 7 is rotatably connected to a running wheel. An arc-shaped slide is provided on the base 1. The running wheel can move along the arc-shaped slide, so that the frame 7 can rotate around the connection between it and the vacuum system 6. A lifting mechanism is provided between the upper furnace body 3 and the frame 7. The lifting mechanism is a hydraulic cylinder. The top of the lifting mechanism is fixedly connected to the frame 7, and the output end of the lifting mechanism is fixedly connected to the upper furnace body 3. The lifting mechanism can drive the upper furnace body 3 to move up and down. The vacuum system 6 is connected to the upper furnace body 3 through a pipeline. The lower furnace body 5 is fixed below the base 1. A melting space for heating the fusion 22 can be formed between the upper furnace body 3 and the lower furnace body 5.

[0051] The crucible body 2 and the crucible base 4 can be detachably matched, and the crucible body 2 and the crucible base 4 can be placed in the smelting space. The crucible base 4 includes a mounting sleeve 40, a plurality of snap-fit ​​parts 41 and a support seat 42. The support seat 42 is a cylindrical structure. The plurality of snap-fit ​​parts 41 are evenly spaced along the circumference of the support seat 42, thereby forming a circular array with the support seat 42 as the center. The mounting sleeve 40 is an annular structure. The snap-fit ​​parts 41 can slide along the radial direction of the mounting sleeve 40. The support seat 42 is slidably fitted in the middle of the mounting sleeve 40. The support seat 42 can slide along the axial direction of the mounting sleeve 40. In detail, a bottom plate 43 is fixedly connected to the top of the support seat 42. The mounting sleeve 40 has a mounting hole corresponding to the support seat 42. The diameter of the bottom plate 43 is larger than the diameter of the mounting hole, so as to achieve the purpose of limiting the support seat 42 to the mounting sleeve 40, to prevent the support seat 42 from detaching downward from the mounting sleeve 40, the diameter of the bottom plate 43 is equal to the inner diameter of the crucible body 2, so that the bottom plate 43 can enter the crucible body 2 and seal the bottom of the crucible body 2. The upper part of the mounting sleeve 40 is rotated with a guide ring 44, and the inner wall of the guide ring 44 is provided with a plurality of protrusions evenly spaced along its circumference. The number of protrusions corresponds to the number of fasteners 41. After the guide ring 44 rotates forward, the protrusions gradually approach the fastener 41 and squeeze the fastener 41, thereby pushing the fastener 41 close to the convex ring 21, thereby fixing the position of the crucible body 2. A pushing unit is provided on the support seat 42, and the pushing unit cooperates with the guide ring 44 to reverse the guide ring 44, so that the fastener 41 is away from the convex ring 21, thereby releasing the position fixation of the crucible body 2.

[0052] Specifically, by rotating the guide ring 44, the multiple snap-fit ​​plates 401 move toward the support seat 42 and contact the raised ring 21 on the crucible body 2, so that the top surface of the snap-fit ​​part 41 stops at the top of the raised ring 21. At this time, the top surface of the mounting sleeve 40 stops at the bottom surface of the crucible body 2, thereby limiting the axial movement of the crucible body 2, thereby limiting the position of the crucible body 2, and fixing the crucible body 2 and the crucible base 4.

[0053] Among them, when the fusion 22 is taken out from the lower furnace body 5 and cooled, after the external lifting platform contacts the support seat 42, the collision between the support seat 42 and the external lifting platform generates a vibration force, and the vibration force is transmitted to the crucible body 2. The crucible body 2 and the fusion 22 are separated by vibration, preventing the fusion 22 from adhering to the inner wall of the crucible body 2 and making it impossible to separate.

[0054] like Figure 4 、 Figures 6 to 9 As shown, the interior of the mounting sleeve 40 is provided with a plurality of mounting grooves 45, each mounting groove 45 corresponds to a fastening member 41, and the mounting groove 45 can limit the fastening member 41 on the mounting sleeve 40. The fastening member 41 is located in the mounting groove 45 and can move radially along the mounting sleeve 40 in the mounting groove 45. Two parallel and spaced limiting grooves 451 are provided on both side walls of the mounting groove 45. The fastening member 41 includes a fastening plate 401, and the upper end of the fastening plate 401 passes through the mounting groove. 45 and extends to the outside of the mounting groove 45. A groove 411 is formed on the upper end of the snap-fit ​​plate 401 on one side facing the support seat 42. The groove 411 is used in conjunction with the convex ring 21. The top surface of the groove 411 can stop against the top surface of the convex ring 21. The setting of the groove 411 can make the snap-fit ​​plate 401 and the convex ring 21 buckle, and the bottom surface of the crucible body 2 can stop against the top surface of the mounting sleeve 40, thereby fixing the position of the crucible body 2 and preventing the crucible body 2 from moving up and down along its axial direction.

[0055] The lower end of the snapping plate 401 facing the support seat 42 is fixedly connected to a pushing arm 412, and the end of the pushing arm 412 away from the snapping plate 401 passes through the mounting groove 45 and is used in conjunction with the support seat 42. Two spaced-apart limit blocks 413 are fixedly connected to both sides of the snapping member 41, and each limit block 413 slides in the corresponding limit groove 451. The limit groove 451 is tilted downward toward one end of the support seat 42. The tilted setting of the limit groove 451 can enable the snapping plate 401 to squeeze the convex ring 21 tighter when it approaches the convex ring 21.

[0056] Specifically, the cooperation between the limiting block 413 and the limiting groove 451 enables the snap plate 401 to move downward while moving toward the support seat 42, thereby making the contact between the snap plate 401 and the protruding ring 21 closer, thereby locking the position of the crucible body 2.

[0057] A plurality of second guide grooves 442 and a plurality of third guide grooves 444 are provided on the inner side of the guide ring 44, a protrusion is formed between two adjacent guide grooves, the third guide groove 444 is located at the inner end of the protrusion, and an inclined transition surface is provided between the second guide groove 442 and the third guide groove 444 to facilitate the movement of the snap-fit ​​plate 401 from the second guide groove 442 to the third guide groove 444. A toggle plate 441 is fixedly connected to the top of the guide ring 44 to facilitate the toggle plate 441 to push the guide ring 44 to rotate.

[0058] Specifically, during the initial installation process, the snap-fit ​​plate 401 is located in the second guide groove 442. The guide ring 44 can be driven to rotate by toggling the plate 441, so that the snap-fit ​​plate 401 enters the third guide groove 444 from the second guide groove 442, so that the guide ring 44 pushes the snap-fit ​​plate 401 toward the support seat 42, thereby making the snap-fit ​​plate 401 contact with the crucible body 2 and fixing the position of the raised ring 21 on the crucible body 2.

[0059] like Figure 6 、 Figures 9 to 11 As shown, the bottom of the mounting sleeve 40 is provided with a positioning groove 47, and the mounting sleeve 40 is provided with a through hole 414 that is connected to the positioning groove 47. The pushing unit includes a guide plate 48 and a fixed plate 481. The fixed plate 481 is located in the positioning groove 47 and is arranged in the radial direction of the support seat 42. The inner end of the fixed plate 481 is fixedly connected to the support seat 42. The guide plate 48 is fixedly mounted on the fixed plate 481 and is arranged in the axial direction of the support seat 42. A stopper 443 is fixedly connected to the inner side of the guide ring 44. The guide plate 48 passes through the through hole 414 and cooperates with the stopper 443. The end of the guide plate 48 facing the stopper 443 has an inclined surface. Specifically, the inclined surface is a smooth surface to reduce the friction between the guide plate 48 and the stopper 443. There are two pushing units, which are arranged symmetrically around the center, so that the pushing force on the guide ring 44 is increased from one point to two points, which can improve the balance of the guide ring 44 during rotation.

[0060] Specifically, when the support seat 42 rises, the guide plate 48 rises with the support seat 42 and stops with the stop block 443. At this time, the stop block 443 stops with the inclined surface of the guide plate 48. When the guide plate 48 moves upward, the stop block 443 can move along the inclined surface of the guide plate 48, and the guide ring 44 on the stop block 443 is rotated through the inclined surface on the guide plate 48 to release the restriction of the guide ring 44 on the snap-fit ​​plate 401.

[0061] Among them, after the crucible body 2 is removed, the external lifting platform descends again, and the support seat 42 uses the gravity of the fusion 22 to lower the snap plate 401 on the pushing arm 412, and the limit block 413 on the snap plate 401 continues to move downward along the limit groove 451, so that the multiple snap plates 401 are further approached to the support seat 42 until the snap plates 401 contact the fusion 22, thereby supporting the fusion 22 and preventing the fusion 22 from tipping over due to the vertical height of the fusion 22.

[0062] like Figure 6 、 Figure 7 and Figure 11 As shown, a plurality of first guide grooves 421 are opened in the circumference of the support seat 42, and the pushing arm 412 corresponds to the first guide groove 421 and is used in conjunction with the first guide groove 421. In detail, the first guide groove 421 includes a first groove 4211 and a second groove 4212. There is a transition surface between the first groove 4211 and the second groove 4212. The transition surface can be an arc surface or a chamfered surface. The lower end of the second groove 4212 is an inclined surface. The upper top angle of the pushing arm 412 at one end facing the support seat 42 is a right angle, and the lower top angle of the pushing arm 412 is a rounded corner.

[0063] Specifically, when the support seat 42 descends, the push arm 412 and the first groove 4211 cooperate to push the snap plate 401 downward, so that the limit block 413 on the snap plate 401 moves downward along the limit groove 451, and then the snap plate 401 moves downward along the radial direction of the mounting sleeve 40. The snap plate 401 gradually approaches the support seat 42, and the top surface of the groove 411 exerts downward pressure on the top of the convex ring 21, so that the snap plate 401 can better buckle the convex ring 21, solving the problem of loose contact and buckling between the snap plate 401 and the convex ring 21 caused by long-term friction between the guide ring 44 and the snap plate 401.

[0064] When the support seat 42 rises, the push arm 412 and the second groove 4212 cooperate to push the snap plate 401 upward, so that the limit block 413 on the snap plate 401 moves upward along the limit groove 451, and then the snap plate 401 moves upward along the radial direction of the mounting sleeve 40. The snap plate 401 gradually moves away from the support seat 42, and the groove 411 is out of contact with the convex ring 21, so that the multiple snap plates 401 release the position limit of the crucible body 2 or the fusion 22.

[0065] Working principle of the present invention:

[0066] Before smelting, the frame 7 is driven to rotate by external force, so that the upper furnace body 3 and the lower furnace body 5 are separated from each other, thereby exposing the lower furnace body 5, and the crucible body 2 is placed on the crucible base 4 (as shown in FIG. Figure 24. As shown in FIG. 4, the state before the crucible body 2 and the crucible base 4 are installed) is shown. At this time, the snap plate 401 is located in the second guide groove 442. Then, the guide ring 44 is rotated by manually rotating the toggle plate 441 in the forward direction. After the guide ring 44 rotates, the snap plate 401 contacts the inner wall of the guide ring 44 using the inclined surface of the second guide groove 442, so that the guide ring 44 squeezes the snap plate 401. The snap plate 401 moves inward along the radial direction of the installation sleeve 40 and gradually approaches the crucible body 2. At the same time, through the limiting groove 451 and With the cooperation of the limiting block 413, the locking plate 401 moves inwards and the limiting block 413 moves obliquely downward along the limiting groove 451, thereby causing the locking plate 401 to move obliquely downward, so that the pushing arm 412 extends into the first guide groove 421, and the convex ring 21 enters the groove 411. At the same time, the top surface of the groove 411 stops at the top of the convex ring 21. The locking plate 401 applies downward pressure to the convex ring 21, thereby fixing the position of the convex ring 21, and then the crucible body 2 and the crucible base 4 are formed into one piece (such as Figure 4 , which shows the state after the crucible body 2 and the crucible base 4 are installed). At this time, the snap-fit ​​plate 401 abuts against the third guide groove 444 at the inner end of the protrusion on the guide ring 44. The protrusion can limit the snap-fit ​​plate 401 and restrict the snap-fit ​​plate 401 from moving radially outward along the installation sleeve 40, thereby preventing the snap-fit ​​plate 401 from separating from the protrusion ring 21.

[0067] Then pour the smelting raw materials into the crucible body 2, and place the crucible body 2 into the lower furnace body 5 through external lifting equipment until the crucible base 4 and the bottom surface of the lower furnace body 5 are stopped. Then rotate the frame 7 so that the upper furnace body 3 is located directly above the lower furnace body 5, and the lifting mechanism moves downward until the upper furnace body 3 and the lower furnace body 5 are stopped, thereby forming a closed smelting space. The vacuum system 6 extracts the air in the smelting space, so that the smelting space is in a vacuum environment. Then heat the upper furnace body 3 and the lower furnace body 5 to start smelting the smelting raw materials.

[0068] When the melting of the smelting raw materials is completed, the smelting space is opened, the lifting mechanism drives the upper furnace body 3 to move upward, the frame 7 rotates and removes the upper furnace body 3, and the crucible body 2 is taken out of the lower furnace body 5 by using an external lifting device, and the crucible body 2 is placed on the external lifting platform to cool and shape the fusion 22. When the fusion 22 is shaped, the external lifting platform first rises rapidly to contact and stop with the support seat 42, so that the support seat 42 and the external lifting platform collide and generate a vibration force, which is transmitted to the crucible body 2. The separation between the crucible body 2 and the fusion 22 is achieved by vibration, so as to prevent the fusion 22 from adhering to the inner wall of the crucible body 2 and causing the fusion 22 to be unable to be separated from the crucible body 2;

[0069] Then the external lifting platform slowly rises, and drives the support seat 42 to slowly rise, and the support seat 42 drives the guide plate 48 to rise through the fixing plate 481, so that the guide plate 48 contacts the stopper 443, and the inclined surface of the guide plate 48 stops with the stopper 443. When the guide plate 48 moves upward, the stopper 443 moves along the inclined surface of the guide plate 48, and the guide plate 48 drives the guide ring 44 to rotate in the opposite direction by pushing the stopper 443 to move. The guide ring 44 rotates in the opposite direction so that the protrusion on the guide ring 44 is out of contact with the buckle plate 401, and the limit of the guide ring 44 on the buckle plate 401 is released. At the same time, the rise of the support seat 42 will cause the gap between the first groove 4211 and the second groove 4212 to The transition surface abuts against the ejection arm 412, and the ejection arm 412 moves along the transition surface between the first groove 4211 and the second groove 4212, thereby entering the second groove 4212. During this process, the snap plate 401, under the cooperation between the ejection arm 412 and the second groove 4212, moves outwardly in the radial direction of the mounting sleeve 40 and gradually away from the support seat 42. At the same time, the limit block 413 moves upwardly along the limit groove 451, so that the snap plate 401 moves upwardly and outwardly at the same time. The snap plate 401 is disengaged from the convex ring 21, and the limit of the snap plate 401 on the convex ring 21 is released. The crucible body 2 is removed from the fusion material 22, so that the fusion material 22 is exposed and naturally cooled.

[0070] When the crucible body 2 is removed, the external lifting platform descends, and the support seat 42 follows the external lifting platform to descend under the action of the gravity of the fusion 22. The top surface of the first groove 4211 gradually approaches the pushing arm 412 and stops with the pushing arm 412, thereby pushing the pushing arm 412 to move downward, and then driving the snap-fit ​​plate 401 to move downward relative to the mounting sleeve 40. The limiting block 413 moves obliquely downward along the limiting groove 451, thereby causing the snap-fit ​​plate 401 to move obliquely downward and gradually approach the fusion 22 until it stops with the fusion 22. Multiple snap-fit ​​plates 401 are evenly spaced around the circumference of the fusion 22, so that multiple snap-fit ​​plates 401 are in contact with the fusion 22 and support the circumference of the fusion 22 (such as Figure 5 As shown, the fastener 41 is in a position-limiting state for the fusion object 22 ), thereby clamping the fusion object 22 and preventing the fusion object 22 from tipping over due to the vertical height of the fusion object 22 .

[0071] After the cooling is completed, the support seat 42 is pushed upward by the external lifting platform, and the support seat 42 drives the guide plate 48 to rise through the fixing plate 481, so that the guide plate 48 contacts the stop block 443, and the inclined surface of the guide plate 48 stops the stop block 443. When the guide plate 48 moves upward, the stop block 443 moves along the inclined surface of the guide plate 48, and the guide plate 48 drives the guide ring 44 to rotate in the opposite direction by pushing the stop block 443. The guide ring 44 rotates in the opposite direction so that the protrusion on the guide ring 44 is out of contact with the buckle plate 401, and the limit of the guide ring 44 on the buckle plate 401 is released. At the same time, the rise of the support seat 42 causes the transition surface between the first groove 4211 and the second groove 4212 to stop with the push arm 412, and the push The top arm 412 will move along the transition surface between the first groove 4211 and the second groove 4212, thereby entering the second groove 4212. During this process, the snap-fitting plate 401 will move outward along the radial direction of the mounting sleeve 40 and gradually away from the support seat 42 under the cooperation between the pushing arm 412 and the second groove 4212. At the same time, the limit block 413 moves upward along the limit groove 451, so that the snap-fitting plate 401 moves upward while moving outward. The snap-fitting plate 401 is disengaged from the fusion 22 and reset. The fusion 22 is removed, and then the crucible body 2 is placed on the crucible base 4. The above steps are repeated to fix the two together. After the raw materials are poured into the crucible body 2, the next smelting process is continued.

[0072] Although the embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and are not to be construed as limitations on the present invention. A person skilled in the art may change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A melting furnace for aluminum alloy refining, comprising: abutment; a crucible body, wherein a convex ring is fixedly connected to the lower end of the crucible body; a lower furnace body, the lower furnace body being arranged below the base; an upper furnace body, the upper furnace body being arranged above the base; A vacuum system is provided above the base and connected to the upper furnace body; The invention also comprises a crucible base, wherein the crucible base comprises a mounting sleeve, a plurality of fastening parts and a support seat, the support seat is located at the bottom of the crucible body, the top end of the fastening part extends into the crucible body, the top end of the fastening part can be clamped with the convex ring, and the bottom end can be clamped with the support seat, the mounting sleeve is slidably fitted on the support seat, the mounting sleeve and the fastening part are slidably fitted on the support seat, and the mounting sleeve is rotatably fitted with a guide ring, the inner wall of the guide ring is provided with a plurality of protrusions evenly spaced along its circumference, the number of protrusions corresponds to the number of fastening parts, and the rotation of the guide ring can drive the fastening part to move along the radial direction of the mounting sleeve, thereby realizing the fixing and unlocking between the support seat and the crucible body; A toggle plate is fixedly connected to the top of the guide ring; A through hole is opened on the mounting sleeve, and a pushing unit is provided on the support seat. The pushing unit includes a guide plate and a fixing plate. The fixing plate is arranged along the radial direction of the support seat, and the guide plate is fixed on the fixing plate. The guide plate is arranged along the axial direction of the support seat; A stopper is fixedly connected to the inner side of the guide ring, and the guide plate passes through the through hole and is used in conjunction with the stopper. One end of the guide plate facing the stopper has an inclined surface.

2. The smelting furnace for aluminum alloy refining according to claim 1, characterized in that: An installation groove is provided inside the installation sleeve, and the fastening part is located in the installation groove. Limiting grooves are provided on both sides of the installation groove. The fastening part includes a fastening plate, and the upper end of the fastening plate passes through the installation groove and extends to the outside of the installation groove. A groove is provided on the upper end of the fastening plate facing the support seat, and the groove is used in conjunction with the convex ring.

3. The smelting furnace for aluminum alloy refining according to claim 2, characterized in that: The lower end of the snap-fit ​​plate facing the support seat is fixedly connected to a push-up arm, and the end of the push-up arm away from the snap-fit ​​plate passes through the mounting slot and cooperates with the support seat. Both sides of the snap-fit ​​part are fixedly connected to limit blocks, and the limit blocks are slidably fitted in the limit slot.

4. The smelting furnace for aluminum alloy refining according to claim 3, characterized in that: The limiting groove is arranged to be tilted downward toward one end of the supporting seat.

5. The smelting furnace for aluminum alloy refining according to claim 3, characterized in that: The inner side of the guide ring is provided with a plurality of second guide grooves and a plurality of third guide grooves, the third guide groove is located between two adjacent second guide grooves, a protrusion is formed between the two adjacent guide grooves, and an inclined transition surface is provided between the second guide groove and the third guide groove to facilitate the buckle plate to move from the second guide groove to the third guide groove, and the second guide groove is used in conjunction with the buckle plate.

6. The smelting furnace for aluminum alloy refining according to claim 5, characterized in that: A positioning groove is provided at the bottom of the mounting sleeve, the through hole is communicated with the positioning groove, and the fixing plate is fixedly connected to the support seat and is located in the positioning groove.

7. The smelting furnace for aluminum alloy refining according to claim 3, characterized in that: A first guide groove is provided on the side wall of the support seat, and the ejection arm corresponds to the first guide groove and is used in conjunction with the first guide groove.

8. The smelting furnace for aluminum alloy refining according to claim 7, characterized in that: The first guide groove includes a first groove and a second groove, and a transition surface is provided between the first groove and the second groove, and the transition surface is an arc surface or a chamfered surface. The lower end of the second groove is an inclined surface, and the upper top angle of one end of the pushing arm facing the support seat is a right angle, and the lower top angle of the pushing arm is a rounded corner.

9. The smelting furnace for aluminum alloy refining according to claim 1, characterized in that: A bottom plate is fixedly connected to the upper portion of the support seat. The mounting sleeve has a mounting hole corresponding to the support seat. The diameter of the bottom plate is larger than the diameter of the mounting hole and is equal to the inner diameter of the crucible body.

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