Smelting furnace for aluminum alloy refining

Abstract

The invention relates to the technical field of smelting furnaces, and particularly discloses a smelting furnace for aluminum alloy refining, the smelting furnace comprises a base table, a crucible main body, a crucible base, a lower furnace body, an upper furnace body and a vacuum system, 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 pieces and a supporting seat, the buckling pieces are in sliding fit with the mounting sleeve, and the supporting seat is fixedly connected with the convex ring. The supporting seat is in sliding fit with the mounting sleeve, a guide ring is in running fit with the upper part of the mounting sleeve, the supporting seat is connected with a pushing unit, and a smelting space for heating a fused substance is formed among the upper furnace body, the crucible main body and the crucible base; according to the invention, the plurality of fasteners can be close to or far away from the convex ring on the crucible main body through the rotation of the guide ring, so that the crucible base can fix the position of the crucible main body or release the position fixation of the crucible main body, and the effects of rapid installation and automatic separation between the crucible main body and the crucible base are further realized.

Description

Technical Field

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

[0002] Aluminum alloy is an alloy based on aluminum with a certain amount of other alloying elements added, and it is one of the light metal materials. Depending on the different other alloying elements added, aluminum alloys can be applied to multiple fields such as electronics and electrical, construction, automotive industry, and aerospace. Titanium aluminum alloy is a high-performance intermetallic compound alloy mainly composed of titanium (Ti) and aluminum (Al), which has the advantages of light weight, high strength, and excellent high-temperature performance. It is mainly used in the aerospace field. In related technologies, the vacuum consumable melting method is usually used to produce titanium aluminum alloy to reduce the alumina slag generated during the melting process and improve the mechanical properties and corrosion resistance of the material.

[0003] The vacuum consumable melting method requires preparing raw materials into electrode blocks through a press, and then putting 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] Chinese Patent with the authorization announcement number CN117490412B discloses a discharging device of a vacuum melting furnace and the vacuum melting furnace. The patent includes a base, inside which a bearing plate for carrying furnace charge is slidably connected. An elevating ring is sleeved outside the base. First notches are uniformly formed along the inner edge of the elevating ring, and a diagonal strut is hinged inside the first notch. Second notches are uniformly formed along the outer edge of the base, and the first notches and the second notches correspond to each other one by one; a fixing frame is hinged inside the second notch, and the upper end of the diagonal strut is hinged to the fixing frame; an unlocking mechanism is arranged between the bearing plate and the fixing frame.

[0005] When carrying out the discharging work in the above patent, personnel can knock the furnace charge from above to prompt the bearing plate and the furnace charge to move down together, so that the furnace charge is separated from the inner wall of the crucible to reduce the discharging difficulty. At the same time, under the linkage effect generated by the bearing plate, the fixing frame can be unlocked from the crucible, enabling personnel to achieve the discharging purpose with fewer operation steps and improving the overall efficiency of the vacuum melting work through a quick disassembly and assembly method.

[0006] However, in this patent, the crucible and the base are fixed by bolts. This method is rather cumbersome, time-consuming and laborious, and requires manual disassembly and assembly of the bolts one by one. When the crucible body is taken out from the lower furnace body, the crucible base and the crucible body need to be separated. Moreover, the crucible body still has a relatively high temperature when taken out. Therefore, when the staff disassemble the bolts between the crucible body and the crucible base, there is still a certain degree of danger. Therefore, it is necessary to design a new type of melting furnace to solve the problem that the disassembly and assembly between the crucible body and the crucible base are relatively cumbersome. Summary of the Invention

[0007] The present invention provides a melting furnace for aluminum alloy refining, aiming to solve the technical problem that the method of bolt connection between the crucible and the base in the related art is rather cumbersome, time-consuming and laborious during installation or disassembly.

[0008] The melting furnace for aluminum alloy refining of the present invention includes: a base, a crucible body, a lower furnace body, an upper furnace body, a vacuum system and a crucible base; A convex ring is fixedly connected to the lower end of the crucible body; The lower furnace body is arranged below the base; The upper furnace body is arranged above the base; The vacuum system is arranged above the base and connected to the upper furnace body; The crucible base includes a mounting sleeve, a fastening member 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 member can be clamped with the convex ring, and its bottom end can be clamped with the support seat. The mounting sleeve is slidably fitted on the support seat, and the mounting sleeve and the fastening member are slidably fitted with each other. A guiding ring is rotatably fitted on the mounting sleeve. The rotation of the guiding ring can drive the fastening member to move radially along the mounting sleeve, so as to realize the fixation and unlocking between the support seat and the crucible body.

[0009] Advantageous Effects: By rotating the guiding ring, multiple fastening members can be made to approach or move away from the convex ring on the crucible body. When the guiding ring rotates forward, the fastening members move radially inward along the mounting sleeve and approach the convex ring, and the fastening members can be clamped with the convex ring, so as to realize the fixation of the position of the crucible body by the crucible base. When the guiding ring moves in the reverse direction, the fastening members move radially outward along the mounting sleeve and move away from the convex ring, thereby releasing the clamping between the fastening members and the convex ring, and further releasing the fixation of the position of the crucible body. By driving the fastening members to approach or move away from the convex ring through the guiding ring, the effects of quick installation and automatic separation between the crucible body and the crucible base are achieved, and the problem that the method of threaded connection between the crucible body and the crucible base is time-consuming and laborious is solved.

[0010] Preferably, a mounting groove is provided inside the mounting sleeve, the buckling piece is located in the mounting groove, limiting grooves are provided on both sides of the mounting groove, the buckling piece includes a buckling plate, the upper end of the buckling 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 buckling plate on one side facing the support seat, and the groove is used in conjunction with the convex ring.

[0011] The effect is that by arranging the installation groove in the installation sleeve, the buckle piece is slidably fitted in the installation groove, and the installation groove can limit the buckle piece to prevent the buckle piece from deflecting when moving along the radial direction of the installation sleeve.

[0012] 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 installation slot and is used in conjunction with the support seat. Limit blocks are fixedly connected to both sides of the snap part, and the limit blocks are slidably fitted in the limit slot.

[0013] The effect is that the buckle piece is slidably fitted in the limiting groove through the limiting block, which can prevent the buckle piece from being deflected during the movement.

[0014] Preferably, the limiting groove is arranged to be inclined downward toward one end of the supporting seat.

[0015] The effect is that the inclined setting of the limiting groove can make the buckling plate squeeze the convex ring more tightly when it approaches the convex ring.

[0016] 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, an inclined transition surface is provided between the second guide groove and the third guide groove, so as to facilitate the snap-fit plate to move from the second guide groove to the third guide groove, the second guide groove is used in conjunction with the snap-fit plate, and a toggle plate is fixedly connected to the top of the guide ring.

[0017] The effect is: a protruding structure is formed between two adjacent second guide grooves, and the third guide groove is located at the inner end of the protruding 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 protruding 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 protruding structure can also limit the fastener, thereby preventing the fastener from moving radially outward along the mounting sleeve.

[0018] 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.

[0019] Preferably, a stopper is fixedly connected to the inner side of the guide ring. The guide plate passes through the through hole and cooperates with the stopper. One end of the guide plate facing the stopper has an inclined surface.

[0020] The effect is that the stopper can abut against the inclined surface of the guide plate. When the guide plate moves upward, the inclined surface of the guide plate abuts against the stopper and pushes the stopper to move along the inclined surface of the guide plate, and then drives the guide ring to rotate in the reverse direction through the stopper, so that the fastening member releases the fixation of the crucible body.

[0021] Preferably, a first guide groove is provided on the side wall of the support seat. The pushing arm corresponds to the first guide groove and cooperates with the first guide groove.

[0022] Preferably, the first guide groove includes a first groove and a second groove. There is a transition surface between the first groove and the second groove. The transition surface can be an arc surface or a chamfer surface. The lower end of the second groove is an inclined surface. The upper vertex angle of the end of the pushing arm facing the support seat is a right angle, and the lower vertex angle of the pushing arm is a rounded corner.

[0023] The effect is that when the support seat descends, the fastening plate will move closer to the support seat under the cooperation of the pushing arm and the first groove, so that the fastening plate can better press the convex ring, solving the problem that the long-term friction between the guide ring and the fastening plate causes the contact and pressing between the fastening plate and the convex ring to be not tight; when the support seat rises, the fastening plate will move away from the support seat under the cooperation of the pushing arm and the second groove to realize the release of the position limitation of the crucible body or the fusion by the fastening plate.

[0024] Preferably, a bottom plate is fixedly connected above 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.

[0025] The effect is that the diameter of the bottom plate is larger than the diameter of the mounting hole to limit the support seat on the mounting sleeve and prevent the support seat from disengaging downward from 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 to close the bottom of the crucible body.

[0026] Adopting the above technical solutions, the beneficial effects of the present invention are: 1. The rotation of the guide ring can make multiple fastening members approach or move away from the convex ring on the crucible body. When the guide ring rotates forward, the fastening members move radially inward along the mounting sleeve and approach the convex ring, and the fastening members can be engaged with the convex ring, thereby fixing the position of the crucible body by the crucible base. When the guide ring rotates backward, the fastening members move radially outward along the mounting sleeve and move away from the convex ring, thereby releasing the engagement between the fastening members and the convex ring, and further releasing the position fixation of the crucible body. Driving the fastening members to approach or move away from the convex ring by the guide ring realizes the effect of quick installation and automatic separation between the crucible body and the crucible base, and solves the problem of time-consuming and laborious when using a threaded connection between the crucible body and the crucible base.

[0027] 2. After the crucible body and the crucible base carry the fusion product and are taken out of the lower furnace body for cooling, they are placed on an external lifting platform. After the lifting platform contacts the support seat, a vibration force is generated by the collision between the support seat and the lifting platform, and the vibration force is transmitted to the crucible body. The separation between the crucible body and the fusion product is achieved through vibration, avoiding the fusion product adhering to the inner wall of the crucible body and causing inability to separate.

[0028] 3. After the crucible body is removed, the lifting platform descends again, and the support seat uses the gravity of the fusion product to lower the fastening plate on the push arm, so that multiple fastening plates contact the fusion product and support the fusion product, avoiding the fusion product from tipping due to the vertical height of the fusion product. Description of the Drawings

[0029] Figure 1 It is a schematic structural diagram of the melting furnace for aluminum alloy refining of the present invention.

[0030] Figure 2 It is a schematic diagram of the cooperation between the crucible base and the crucible body of the present invention.

[0031] Figure 3 It is a schematic structural diagram of the first state of the crucible base for the crucible body initially of the present invention.

[0032] Figure 4 It is a schematic structural diagram of the second state of the crucible base fixing the crucible body of the present invention.

[0033] Figure 5 It is a schematic structural diagram of the third state of the crucible base fixing the fusion product of the present invention.

[0034] Figure 6 It is a schematic structural diagram of the crucible base of the present invention.

[0035] Figure 7 It is a front view of the fastening member of the present invention.

[0036] Figure 8 It is a schematic sectional structural diagram of the mounting sleeve of the present invention.

[0037] Figure 9 It is a structural schematic diagram of the guide ring of the present invention.

[0038] Figure 10 It is a bottom view of the mounting sleeve of the present invention.

[0039] Figure 11 It is a structural schematic diagram of the guide plate of the present invention.

[0040] Reference numerals: 1. Base; 2. Crucible body; 3. Upper furnace body; 4. Crucible base; 5. Lower furnace body; 6. Vacuum system; 7. Frame; 21. Protruding ring; 22. Fusion material; 40. Mounting sleeve; 41. Fastening piece; 42. Support seat; 43. Bottom plate; 44. Guide ring; 45. Mounting groove; 47. Positioning groove; 48. Guide plate; 401. Fastening 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

[0041] 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.

[0042] like Figures 1 to 5 As shown, the present invention provides a smelting 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 various systems, 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 smelting 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 smelting space, so that the smelting space is in a vacuum environment.

[0043] 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 groove is provided on the base 1. The running wheel can move along the arc-shaped slide groove, 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 smelting space for heating the fusion 22 can be formed between the upper furnace body 3 and the lower furnace body 5.

[0044] The crucible body 2 and the crucible base 4 can be detachably fitted. 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 fastening members 41 and a support base 42. The support base 42 is a cylindrical structure. The plurality of fastening members 41 are evenly spaced along the circumference of the support base 42, so as to be annularly arrayed centered on the support base 42. The mounting sleeve 40 is an annular structure. The fastening members 41 can slide radially along the mounting sleeve 40. The support base 42 is slidably fitted in the middle of the mounting sleeve 40. The support base 42 can slide axially along the mounting sleeve 40. Specifically, a bottom plate 43 is fixedly connected above the support base 42. The mounting sleeve 40 has a mounting hole corresponding to the support base 42. The diameter of the bottom plate 43 is larger than the diameter of the mounting hole, so as to limit the support base 42 on the mounting sleeve 40 and prevent the support base 42 from disengaging 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 enters the crucible body 2 to close the bottom of the crucible body 2. A guide ring 44 is rotatably fitted above the mounting sleeve 40. A plurality of protrusions are provided on the inner wall of the guide ring 44 and are evenly spaced along its circumference. The number of protrusions corresponds to the number of fastening members 41. By rotating the guide ring 44 forward, the protrusions gradually approach the fastening members 41 and squeeze the fastening members 41, thereby pushing the fastening members 41 close to the convex ring 21 to fix the position of the crucible body 2. A top-pushing unit is provided on the support base 42. The top-pushing unit cooperates with the guide ring 44 to reverse the guide ring 44, so that the fastening members 41 are away from the convex ring 21 and the position fixing of the crucible body 2 is released.

[0045] Specifically, by rotating the guide ring 44, a plurality of fastening plates 401 move towards the support base 42 and contact the convex ring 21 on the crucible body 2, so that the top surface of the fastening member 41 abuts against the top end of the convex ring 21. At this time, the top surface of the mounting sleeve 40 abuts against the bottom surface of the crucible body 2, thereby restricting the axial movement of the crucible body 2, and thus limiting the position of the crucible body 2 and fixing the crucible body 2 and the crucible base 4.

[0046] Among them, when the melt 22 is taken out of the lower furnace body 5 and cooled, after the external lifting platform contacts the support base 42, a vibration force is generated by the collision between the support base 42 and the external lifting platform. The vibration force is transmitted to the crucible body 2, and the separation between the crucible body 2 and the melt 22 is realized through vibration, so as to prevent the melt 22 from adhering to the inner wall of the crucible body 2 and causing non-separation.

[0047] Such as Figure 4 、 Figures 6 to 9As shown, the interior of the mounting sleeve 40 is provided with a plurality of mounting grooves 45, each mounting groove 45 corresponds to a buckle 41, the mounting groove 45 can limit the buckle 41 on the mounting sleeve 40, the buckle 41 is located in the mounting groove 45, and can move in the mounting groove 45 along the radial direction of the mounting sleeve 40, the two side walls of the mounting groove 45 are provided with two parallel and spaced limiting grooves 451, the buckle 41 includes a buckle plate 401, the upper end of the buckle 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 buckling 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 buckling plate 401 and the convex ring 21 buckle, the bottom surface of the crucible body 2 can stop against the top surface of the mounting sleeve 40, so as to fix the position of the crucible body 2 and prevent the crucible body 2 from moving up and down along its axial direction.

[0048] A push arm 412 is fixedly connected to the lower end of the side of the snap plate 401 facing the support seat 42, and the end of the push arm 412 away from the snap plate 401 passes through the installation 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 snap member 41, and each limit block 413 is slidably fitted 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 snap plate 401 to squeeze the convex ring 21 tighter when it approaches the convex ring 21.

[0049] Specifically, the cooperation between the limiting block 413 and the limiting groove 451 enables the locking plate 401 to move downward while moving toward the support seat 42, thereby making the contact between the locking plate 401 and the convex ring 21 closer, thereby locking the position of the crucible body 2.

[0050] 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 second guide grooves 442, 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 grooves 442 and the third guide grooves 444 to facilitate the movement of the snap-fit plate 401 from the second guide grooves 442 to the third guide grooves 444, and a toggle plate 441 is fixedly connected to the top of the guide ring 44 to facilitate the guide ring 44 to be pushed to rotate by the toggle plate 441.

[0051] Specifically, during the initial installation process, the snap-fit plate 401 is located in the second guide groove 442, and the guide ring 44 can be driven to rotate by the toggle plate 441, so that the snap-fit plate 401 enters from the second guide groove 442 into the third guide groove 444, so that the guide ring 44 pushes the snap-fit plate 401 to move toward the support seat 42, thereby making the snap-fit plate 401 contact with the crucible body 2 and fixing the position of the convex ring 21 on the crucible body 2.

[0052] like Figure 6 , Figures 9 to 11 As shown, a positioning groove 47 is provided at the bottom of the mounting sleeve 40, a through hole 414 is provided on the mounting sleeve 40 and is connected to the positioning groove 47, and the push unit includes a guide plate 48 and a fixing plate 481, the fixing plate 481 is located in the positioning groove 47, the fixing plate 481 is arranged along the radial direction of the support seat 42, the inner end of the fixing plate 481 is fixedly connected to the support seat 42, the guide plate 48 is fixedly arranged on the fixing plate 481, and the guide plate 48 is arranged along the axial direction of the support seat 42, and 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 is used in conjunction with the stopper 443, and the guide plate 48 has an inclined surface at one end facing the stopper 443, and in detail, the inclined surface is a smooth surface to reduce the friction between the guide plate 48 and the stopper 443. There are two push units, and the two push units are arranged symmetrically at the center to increase the one-point driving force on the guide ring 44 to two-point driving force, which can increase the balance of the guide ring 44 when it rotates.

[0053] 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.

[0054] 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 make the snap plate 401 on the push arm 412 descend, 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 are in contact with 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.

[0055] like Figure 6 , Figure 7 and Figure 11As shown, a plurality of first guiding grooves 421 are circumferentially formed in the supporting base 42. The pushing arm 412 corresponds to the first guiding grooves 421 and is used in cooperation with the first guiding grooves 421. Specifically, the first guiding grooves 421 include a first groove 4211 and a second groove 4212. There is a transition surface between the first groove 4211 and the second groove 4212, and 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 vertex angle of the end of the pushing arm 412 facing the supporting base 42 is a right angle, and the lower vertex angle of the pushing arm 412 is a rounded corner.

[0056] Specifically, when the supporting base 42 descends, under the cooperation of the pushing arm 412 and the first groove 4211, the buckling plate 401 will be pushed downward, so that the limiting block 413 on the buckling plate 401 moves obliquely downward along the limiting groove 451, and then the buckling plate 401 moves obliquely downward along the radial direction of the mounting sleeve 40. The buckling plate 401 gradually approaches the supporting base 42, and the top surface of the groove 411 applies a downward pressure on the top end of the convex ring 21, so that the buckling plate 401 can better buckle the convex ring 21, solving the problem that the contact buckling between the buckling plate 401 and the convex ring 21 is not tight due to the long-term friction between the guiding ring 44 and the buckling plate 401.

[0057] When the supporting base 42 ascends, under the cooperation of the pushing arm 412 and the second groove 4212, the buckling plate 401 will be pushed upward, so that the limiting block 413 on the buckling plate 401 moves obliquely upward along the limiting groove 451, and then the buckling plate 401 moves obliquely upward along the radial direction of the mounting sleeve 40. The buckling plate 401 gradually moves away from the supporting base 42, and the groove 411 is separated from the convex ring 21, so as to release the position limitation of the crucible body 2 or the fusion 22 by a plurality of buckling plates 401.

[0058] Working principle of the present invention: Before the smelting operation, first drive the frame body 7 to rotate by an external force, so that the upper furnace body 3 is separated from the lower furnace body 5, thereby exposing the lower furnace body 5. Place the crucible body 2 on the crucible base 4 (such as Figure 24, which is a state before the crucible body 2 and the crucible base 4 are installed). At this time, the buckle plate 401 is located in the second guide groove 442, and then the guide ring 44 is rotated by manually rotating the toggle plate 441 in the positive direction. After the guide ring 44 rotates, the buckle 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 buckle plate 401, and the buckle 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 while the limiting block 413 moves obliquely downward along the limiting groove 451, so that the locking plate 401 moves 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 against the top of the convex ring 21, and the locking plate 401 applies downward pressure to the convex ring 21, so as to fix the position of the convex ring 21, thereby making the crucible body 2 and the crucible base 4 form a whole (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 detaching from the protrusion ring 21.

[0059] Then, the smelting raw material is poured into the crucible body 2, and the crucible body 2 is placed in the lower furnace body 5 by external lifting equipment until the crucible base 4 and the bottom surface of the lower furnace body 5 are stopped, and then the frame 7 is rotated to make the upper furnace body 3 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, and the vacuum system 6 extracts the air in the smelting space, so that the smelting space is in a vacuum environment, and then the upper furnace body 3 and the lower furnace body 5 are heated to start smelting the smelting raw material.

[0060] 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 body 7 rotates and removes the upper furnace body 3, and the crucible body 2 is taken out from 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 quickly and contacts and stops 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 so that the fusion 22 cannot be separated from the crucible body 2; Subsequently, the external lifting platform slowly rises, driving the support base 42 to slowly rise. The support base 42 drives the guide plate 48 to rise through the fixed plate 481, causing the guide plate 48 to contact the stopper 443. The inclined surface of the guide plate 48 abuts against the stopper 443. When the guide plate 48 moves upward, the stopper 443 moves along the inclined surface of the guide plate 48. The guide plate 48 drives the guide ring 44 to rotate reversely by pushing the stopper 443 to move. The reverse rotation of the guide ring 44 causes the protrusion on the guide ring 44 to disengage from the fastening plate 401, releasing the limit of the guide ring 44 on the fastening plate 401. At the same time, the rise of the support base 42 causes the transition surface between the first groove 4211 and the second groove 4212 to abut against the push arm 412, and the push arm 412 will move along the transition surface between the first groove 4211 and the second groove 4212 and thus enter the second groove 4212. During this process, the fastening plate 401 will move radially outward along the mounting sleeve 40 and gradually move away from the support base 42 under the cooperation between the push arm 412 and the second groove 4212. At the same time, the limiting block 413 moves obliquely upward along the limiting groove 451, so that the fastening plate 401 moves obliquely upward while moving outward, and the fastening plate 401 disengages from the convex ring 21, releasing the limit of the fastening plate 401 on the convex ring 21, and removing the crucible body 2 from the fusion 22 so that the fusion 22 is exposed for natural cooling; While removing the crucible body 2, the external lifting platform descends, and the support base 42 descends following the external lifting platform under the action of the gravity of the fusion 22. The top surface of the first groove 4211 gradually approaches the push arm 412 and abuts against the push arm 412, thereby pushing the push arm 412 to move downward, and then driving the fastening plate 401 to move downward relative to the mounting sleeve 40. The limiting block 413 moves obliquely downward along the limiting groove 451, and further causes the fastening plate 401 to move obliquely downward and gradually approach the fusion 22 until it abuts against the fusion 22. Multiple fastening plates 401 are evenly spaced around the circumference of the fusion 22, so that the multiple fastening plates 401 contact the fusion 22 and support the circumference of the fusion 22 (as Figure 5 shown, it is the state where the fastening member 41 limits the position of the fusion 22), thereby realizing clamping of the fusion 22 and preventing the fusion 22 from tipping due to the vertical height of the fusion 22.

[0061] After 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 stopper 443, and the inclined surface of the guide plate 48 stops 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 buckling plate 401, and the limit of the guide ring 44 on the buckling plate 401 is released. At the same time, the rise of the support seat 42 will cause the transition surface between the first groove 4211 and the second groove 4212 to stop the push arm 412, and the push arm 412 will stop the push arm 412. 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-fit plate 401 will move outward along the radial direction of the mounting sleeve 40 and gradually move away from the support seat 42 under the cooperation between the push-up arm 412 and the second groove 4212. At the same time, the limit block 413 moves obliquely upward along the limit groove 451, so that the snap-fit plate 401 moves obliquely upward while moving outward. The snap-fit 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.

[0062] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. A smelting 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, wherein the lower furnace body is arranged below the base; An upper furnace body, wherein the upper furnace body is arranged above the base; A vacuum system, the vacuum system is arranged above the base and connected to the upper furnace body; The invention is characterized in that it also includes a crucible base, the crucible base includes a mounting sleeve, a buckling 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 buckling piece 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 buckling piece are slidably fitted, and a guide ring is rotatably fitted on the mounting sleeve, and the rotation of the guide ring can drive the buckling piece to move radially along the mounting sleeve, thereby realizing the fixing and unlocking between the support seat and the crucible body.

2. The melting furnace for refining aluminum alloy according to claim 1, characterized in that, A mounting groove is provided inside the mounting sleeve, the buckling piece is located in the mounting groove, limiting grooves are provided on both sides of the mounting groove, the buckling piece includes a buckling plate, the upper end of the buckling 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 buckling plate on one side facing the support seat, and the groove is used in conjunction with the convex ring.

3. The smelting furnace for refining aluminum alloy according to claim 2, wherein A push arm is fixedly connected to the lower end of the buckling plate on one side facing the support seat, and the end of the push arm away from the buckling plate passes through the installation slot and is used in conjunction with the support seat. Both sides of the buckling part are fixedly connected to limit blocks, and the limit blocks are slidably fitted in the limit slots.

4. The smelting furnace for refining aluminum alloy according to claim 3, wherein The limiting groove is arranged to be inclined downward toward one end of the supporting seat.

5. The melting furnace for refining aluminum alloy 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, 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, the second guide groove is used in conjunction with the buckle plate, and a toggle plate is fixedly connected to the top of the guide ring.

6. The melting furnace for refining aluminum alloy according to claim 5, characterized in that 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 fixing plate, the fixing plate is fixedly connected to the support seat and is located in the positioning groove, the fixing plate is arranged along the radial direction of the support seat, the guide plate is fixed on the fixing plate, and the guide plate is arranged along the axial direction of the support seat.

7. The melting furnace for refining aluminum alloy according to claim 6, characterized in that, 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 one end of the guide plate facing the stopper has an inclined surface.

8. The melting furnace for refining aluminum alloy according to claim 3, characterized in that, A first guide groove is arranged 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.

9. The melting furnace for refining aluminum alloy according to claim 8, 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 may be an arc surface or a chamfered surface. The lower end of the second groove is an inclined surface, and the upper vertex angle of one end of the ejection arm facing the support seat is a right angle, and the lower vertex angle of the ejection arm is a rounded corner.

10. The melting furnace for refining aluminum alloy according to claim 1, characterized in that, A bottom plate is fixedly connected above the support base. The mounting sleeve is provided with a mounting hole corresponding to the support base. 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.

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