Vacuum induction melting furnace for alloy melting

Abstract

The invention discloses a vacuum induction melting furnace for alloy melting, and relates to the technical field of melting furnaces. The vacuum induction smelting furnace for alloy smelting comprises a smelting furnace body, a heating unit, a crucible, a bottom support, a mold base, a vacuum control unit, a feeding unit, a discharging control unit and a proportional control mechanism. According to the smelting furnace, the feeding unit is additionally arranged on the smelting furnace main body, the feeding unit is convenient for storing various raw materials and controlling discharging, the tedious operation of opening the furnace for adding the raw materials for many times is avoided, time and labor are saved, alloy smelting can be continuously and stably carried out, the discharging amount of the two raw materials is controlled through the design of the discharging control unit and the proportion control mechanism, and the smelting efficiency is improved. Quantitative supply is achieved, the discharging proportion of the two raw materials is accurately controlled through the proportion control mechanism, operation is easy and convenient, errors are not prone to occurring, the requirement for accurate proportion of different alloy components can be met, and stability and consistency of alloy quality are guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of melting furnaces, in particular to a vacuum induction melting furnace for alloy melting. Background Art

[0002] Vacuum induction melting furnace is a special metallurgical equipment that melts metal materials under vacuum or protective atmosphere conditions through the principle of medium frequency induction heating. It can achieve the preparation of high-purity metals and alloys and avoid oxidation and impurity contamination.

[0003] When a melting furnace is in use, a metal charge is placed in a crucible placed in a coil. When the coil is connected to an AC power source, an alternating magnetic field is generated in the middle of the coil, generating an induced potential in the charge. The metal charge itself forms a closed loop, and an induced current is simultaneously generated in the charge. The charge is heated and melted by eddy currents. However, the existing technology has been found to have the following deficiencies during use: First, the crucible is usually of a fixed size and has a fixed amount of raw materials added to it. During induction melting, the amount of raw materials that can be melted is limited. Therefore, when producing large quantities of finished alloy products, the melting furnace needs to be opened and added with raw materials multiple times, which is inconvenient, time-consuming, and labor-intensive. Secondly, when adding raw materials multiple times, it is also necessary to control the proportion of the raw materials. Traditional control methods usually make the raw materials into spheres for easy proportioning. A variety of proportioning methods are achieved by adjusting the quantity ratio of the raw material spheres. During operation, the spheres need to be counted and mixed, which is inconvenient and prone to errors. In response to the shortcomings of the existing technology, the present invention provides a vacuum induction melting furnace for alloy smelting to solve the above problems. Summary of the Invention

[0004] In response to the shortcomings of the prior art, the present invention provides a vacuum induction melting furnace for alloy smelting. First, a feeding unit is added to the main body of the melting furnace. The feeding unit is convenient for storing a variety of raw materials and controlling the unloading, avoiding the tedious operation of opening the furnace multiple times to add raw materials, saving time and effort, and capable of continuously and stably smelting alloys. It is particularly suitable for scenarios where a large number of finished alloy products are produced, effectively improving production efficiency; second, through the design of a unloading control unit and a proportional control mechanism, the unloading amounts of the two raw materials are controlled separately to achieve quantitative supply, and the proportional control mechanism is used to accurately control the unloading ratio of the two raw materials. The operation is simple and error-prone, and the precise requirements of the proportions of different alloy components can be met, thereby ensuring the stability and consistency of the alloy quality.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: A vacuum induction melting furnace for alloy melting, comprising a melting furnace body, a heating unit, a crucible, a bottom support, a mold base, a vacuum control unit, a feeding unit, a blanking control unit, and a proportional control mechanism; The heating unit is arranged on the smelting furnace body, and the heating unit includes a base arranged on the smelting furnace body and a heating induction coil arranged on the base; The crucible is arranged inside the heating induction coil; The bottom support is arranged at the bottom of the smelting furnace body; The mold base is arranged inside the bottom support; The vacuum control unit is arranged on the smelting furnace body and is used for evacuating the interior of the smelting furnace body; The feeding unit is arranged above the smelting furnace body, and includes a main storage barrel and an auxiliary storage barrel arranged above the smelting furnace body, and a feeding pipe fixedly connected to the smelting furnace body, and the feeding pipe is respectively connected to the main storage barrel and the auxiliary storage barrel; The unloading control unit is arranged on the main storage barrel and is used to control the unloading of materials from the main storage barrel; The proportional control mechanism is arranged between the main material storage barrel and the auxiliary material storage barrel and is used to drive the auxiliary material storage barrel to discharge materials. The proportional control mechanism controls the discharge ratio of the main material storage barrel and the auxiliary material storage barrel.

[0006] Preferably, the main material storage barrel is internally rotatably connected to a main unloading cam for unloading, the auxiliary material storage barrel is internally rotatably connected to an auxiliary unloading cam for unloading, and the unloading control unit is used to drive the main unloading cam to rotate.

[0007] Preferably, the proportional control mechanism includes: A first tapered roller is provided on the rotating shaft of the main unloading cam; A second tapered roller is provided on the rotating shaft of the auxiliary unloading cam; a transmission belt, sleeved on the first tapered roller and the second tapered roller; A limiting seat is slidably connected above the smelting furnace body and is used to control the position of a transmission belt, wherein the transmission belt is arranged inside the limiting seat.

[0008] Preferably, the feeding unit also includes a bracket arranged on the smelting furnace body and a preliminary mixing barrel arranged above the feeding pipe. The bottom material pipes of the main storage barrel and the auxiliary storage barrel are respectively fixedly connected to the preliminary mixing barrel, and the bracket is provided with a locking assembly for limiting the limit seat.

[0009] Preferably, the locking assembly comprises: A connecting platform is provided on the bracket, the limiting seat is slidably connected to the connecting platform, and a plurality of locking holes are provided on the connecting platform; A sleeve is arranged on the limiting seat; A latch, slidably connected in the sleeve and movably inserted in the locking hole; A spring is arranged between the sleeve and the latch.

[0010] Preferably, the blanking control unit includes: a first worm, rotatably connected to the upper portion of the smelting furnace body; The first worm gear is arranged on the rotating shaft of the main unloading cam and meshes with the first worm.

[0011] Preferably, the vacuum control unit comprises: a vacuum pump pipe, disposed on the smelting furnace body and connected to a vacuum pump; A pressure relief pipe is provided on the smelting furnace body, and a pressure relief valve is provided on the pressure relief pipe; A pressure gauge is provided on the smelting furnace body.

[0012] Preferably, the bottom support is provided with a plurality of groups of mold bases and a switching unit for switching the positions of the plurality of groups of mold bases, and the switching unit includes: a rotating seat, rotatably connected to the bottom support and the interior of the smelting furnace body; a second worm gear, disposed on the rotating seat; A first motor is provided on the bottom support; The second worm is arranged at the output end of the first motor and meshes with the second worm wheel.

[0013] Preferably, the smelting furnace body is provided with a stirring assembly, and the stirring assembly comprises: a second motor, disposed on the smelting furnace body; The stirring rod is arranged at the output end of the second motor and is located in the crucible.

[0014] Preferably, the smelting furnace body is provided with a blocking unit for controlling the feeding of molten material into the crucible, and the blocking unit comprises: An electric push rod is provided on the smelting furnace body; A lifting frame, arranged at the output end of the electric push rod; The plug is arranged on the lifting frame and aligned with the bottom opening of the crucible. The plug is funnel-shaped and has a sealing member inside for closing the bottom opening of the crucible.

[0015] The present invention discloses a vacuum induction melting furnace for alloy melting, which has the following beneficial effects: 1. This vacuum induction melting furnace for alloy smelting has the following features: First, a feeding unit is added to the main body of the melting furnace. The feeding unit facilitates the storage of various raw materials and controls the feeding of raw materials, avoiding the tedious operation of opening the furnace multiple times to add raw materials, saving time and effort, and enabling continuous and stable alloy smelting. It is particularly suitable for scenarios where large quantities of finished alloy products are produced, effectively improving production efficiency; second, the design of the feeding control unit and the proportional control mechanism separately controls the feeding amount of the two raw materials to achieve quantitative supply. The proportional control mechanism is used to accurately control the feeding ratio of the two raw materials, making it easy to operate and less prone to errors. It can meet the precise requirements of the ratio of different alloy components and ensure the stability and consistency of alloy quality.

[0016] 2. The vacuum induction melting furnace for alloy smelting is designed with a bottom support, a mold base and a transposition unit at the bottom of the melting furnace body. The transposition unit facilitates rapid switching between multiple mold bases, improves production efficiency, meets the production requirements of different alloy casting shapes and sizes, broadens the application range of the melting furnace, reduces production costs, ensures the stability and accuracy of the transposition process, and is conducive to improving the production quality of alloy castings.

[0017] 3. The vacuum induction melting furnace for alloy smelting is designed with a plugging unit. By controlling the extension and retraction of the electric push rod, the plug can be driven to move up and down, thereby closing and opening the bottom opening of the crucible and controlling the discharge of the molten alloy. The funnel-shaped plug helps the alloy to flow out smoothly, while the seal can ensure the tightness of the plug and prevent the alloy from leaking when not in the discharge state, thus ensuring the smooth progress of the smelting process and the accurate discharge of the alloy. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0019] Figure 1 This is a first perspective diagram of the overall structure of the present invention; Figure 2 This is a second viewing angle of the overall structural diagram of the present invention; Figure 3 Schematic diagram of the structure of the transposition unit of the present invention; Figure 4 is a cross-sectional view of the main body of the smelting furnace of the present invention; Figure 5 A top view of the internal structure of the smelting furnace body of the present invention; Figure 6 This is a schematic diagram of the activity of the plug of the present invention; Figure 7 is a cross-sectional view of the plug of the present invention; Figure 8 This is a schematic structural diagram of the blanking control unit of the present invention; Figure 9 For the present invention Figure 8 Enlarged view of part A; Figure 10 Schematic diagram of the structure of the proportional control mechanism of the present invention; Figure 11 This is a disassembly diagram of the limit seat of the present invention; Figure 12 It is a structural schematic diagram of the locking hole of the present invention.

[0020] In the figure: 1. Melting furnace body; 2. Heating unit; 201. Base; 202. Heating induction coil; 3. Crucible; 4. Bottom support; 5. Mold base; 6. Vacuum control unit; 601. Vacuum pump tube; 602. Pressure relief pipe; 6021. Pressure relief valve; 603. Pressure gauge; 7. Feeding unit; 701. Bracket; 702. Feeding pipe; 703. Preliminary mixing cylinder; 704. Main storage cylinder; 7041. Main unloading cam; 705. Auxiliary storage cylinder; 7051. Auxiliary unloading cam; 8. Unloading control unit; 801. First worm; 802. First worm gear; 9. Proportional control mechanism; 901. First tapered roller; 902. Second tapered roller; 903. Transmission belt; 904. Limit seat; 10. Locking assembly; 1001. Connecting platform; 10011. Locking hole; 1002. Sleeve; 1003. Latch; 1004. Spring; 11. Transposition unit; 1101. Rotating seat; 1102. Second worm gear; 1103. First motor; 1104. Second worm; 12. Stirring assembly; 1201. Second motor; 1202. Stirring rod; 13. Blocking unit; 1301. Electric push rod; 1302. Lifting frame; 1303. Plug; 13031. Sealing member. DETAILED DESCRIPTION

[0021] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention are clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0022] The embodiments of the present application provide a vacuum induction melting furnace for alloy melting, which solves the problem that, in conventional vacuum induction melting furnaces, the size of the crucible is fixed during use, the amount of raw materials added thereto is fixed, and the amount of raw materials melted during the induction melting process is limited. Therefore, when producing a large number of finished alloy products, it is necessary to open the melting furnace and add raw materials multiple times, which is inconvenient, time-consuming and labor-intensive. At the same time, when adding raw materials multiple times, it is also necessary to control the ratio of the raw materials, and during operation, it is necessary to count and mix the balls, which is inconvenient and prone to errors.

[0023] In order to better understand the above technical solution, the above technical solution will be described in detail below with reference to the accompanying drawings and specific implementation methods.

[0024] Example 1: The present invention discloses a vacuum induction melting furnace for alloy melting. Figure 1-12 As shown, it includes a melting furnace body 1, a heating unit 2, a crucible 3, a bottom support 4, a mold base 5, a vacuum control unit 6, a feeding unit 7, a blanking control unit 8 and a proportional control mechanism 9; The smelting furnace body 1 is the basic structure of the entire smelting furnace, providing a relatively closed space environment for the entire smelting process, and cooperating with the vacuum control unit 6 to realize alloy smelting under a vacuum environment. At the same time, corresponding working windows and sealed doors are provided on the smelting furnace body 1, so that the inner cavity of the smelting furnace body 1 is easy to open or close.

[0025] The heating unit 2 includes a base 201 and a heating induction coil 202. The base 201 is fixed to the smelting furnace body 1, providing stable support for the heating induction coil 202, ensuring its accurate positioning and preventing it from shaking during operation. When current passes through the heating induction coil 202, an alternating magnetic field is generated within the coil, inducing a current in the metal material within the coil 202 and the crucible 3. This, in turn, utilizes the metal's own resistance heating to achieve melting.

[0026] The crucible 3 is arranged inside the heating induction coil 202 and is used to contain the alloy material to be smelted. The crucible 3 is made of a high temperature resistant and corrosion resistant material.

[0027] The bottom support 4 is arranged at the bottom of the smelting furnace body 1 to support the entire smelting furnace and provide a basic platform for the installation of the mold base 5. The bottom support 4 has sufficient strength and stability.

[0028] The mold base 5 is disposed inside the bottom support 4 and is used to receive the molten alloy flowing out of the crucible 3 .

[0029] The vacuum control unit 6 includes a vacuum pump tube 601, a pressure relief tube 602, and a pressure gauge 603. The vacuum pump tube 601 connects the vacuum pump to the smelting furnace body 1, creating a vacuum environment within the smelting furnace body 1, reducing oxidation reactions and improving alloy quality. The vacuum pump tube 601 connects the vacuum pump to the smelting furnace body 1. The vacuum pump extracts air from the smelting furnace body 1, achieving a vacuum operation. This reduces the pressure and gas content within the furnace, provides a vacuum environment for the smelting process, and reduces adverse effects such as alloy oxidation. When pressure relief is required within the furnace, the pressure relief tube 602 is controlled by the pressure relief valve 6021 to discharge the furnace gas. The pressure relief valve 6021 precisely controls the speed and extent of pressure relief, ensuring the safety and controllability of the smelting process. The pressure gauge 603 monitors the pressure within the smelting furnace body 1 in real time, allowing operators to understand the pressure status within the furnace and adjust the vacuum pump and pressure relief valve 6021 in a timely manner to ensure the smelting process is carried out at the appropriate pressure.

[0030] The feeding unit 7 includes a main storage barrel 704, an auxiliary storage barrel 705, a feeding pipe 702, a preliminary mixing barrel 703, and a bracket 701. The main storage barrel 704 and the auxiliary storage barrel 705 store different alloy raw materials, respectively. The raw materials are first fed into the preliminary mixing barrel 703 for preliminary mixing, and then enter the crucible 3 through the feeding pipe 702.

[0031] The bracket 701 is fixed on the smelting furnace body 1 and is used to support and fix the feed pipe 702 and other related components; The preliminary mixing cylinder 703 performs preliminary mixing on the alloy raw materials delivered from the main storage cylinder 704 and the auxiliary storage cylinder 705; The main storage barrel 704 and the auxiliary storage barrel 705 are used to store the main and auxiliary alloy raw materials respectively, and are respectively provided with a main unloading cam 7041 and an auxiliary unloading cam 7051. The main and auxiliary alloy raw materials can be made into a spherical shape and adapted to the main unloading cam 7041 and the auxiliary unloading cam 7051. When the main unloading cam 7041 and the auxiliary unloading cam 7051 rotate, they can drive the main and auxiliary alloy raw materials to be unloaded, thereby facilitating the separate control of the unloading amount of the raw materials of the main storage barrel 704 and the auxiliary storage barrel 705, thereby realizing the quantitative supply of the raw materials, and the unloading ratio of the two is adjusted by the proportional control mechanism 9 to meet the requirements of different alloy component ratios.

[0032] The unloading control unit 8 includes a first worm 801 and a first worm gear 802. The first worm gear 802 is mounted on the rotating shaft of the main unloading cam 7041 and meshes with the first worm 801. The first worm 801 is rotatably connected to the top of the smelting furnace body 1. By meshing with the first worm gear 802, it drives the main unloading cam 7041 to rotate, thereby achieving precise control of the unloading amount of the main accumulator 704, ensuring that the alloy raw material is unloaded according to the set main amount.

[0033] The proportional control mechanism 9 includes a first tapered roller 901, a second tapered roller 902, a transmission belt 903 and a limit seat 904. The first tapered roller 901 is set on the rotating shaft of the main unloading cam 7041; The second tapered roller 902 is disposed on the rotating shaft of the auxiliary unloading cam 7051; The transmission belt 903 is sleeved on the first tapered roller 901 and the second tapered roller 902; The limiting seat 904 is slidably connected to the top of the smelting furnace body 1 and is used to control the position of the transmission belt 903 . The transmission belt 903 is arranged inside the limiting seat 904 .

[0034] The first tapered roller 901 is set on the rotating shaft of the main unloading cam 7041 and is connected to the second tapered roller 902 through a transmission belt 903. When the main unloading cam 7041 rotates, the transmission belt 903 drives the second tapered roller 902 and the auxiliary unloading cam 7051 to rotate, thereby realizing the synchronous control of the unloading of the main storage barrel 704 and the auxiliary storage barrel 705, and the taper of each position of the tapered roller is different. The position of the transmission belt 903 affects the speed ratio of the two. The limit seat 904 limits the transmission belt 903. Therefore, adjusting the limit seat 904 can adjust the position of the transmission belt 903, adjust the transmission ratio of the first tapered roller 901 and the second tapered roller 902, and then realize the adjustment of the unloading ratio of the main storage barrel 704 and the auxiliary storage barrel 705.

[0035] The limiting seat 904 is slidably connected to the upper part of the smelting furnace body 1 and is used to control the position of the transmission belt 903 to ensure the stability and reliability of the transmission belt 903 during the transmission process. The locking assembly 10 provided on the bracket 701 can limit the limiting seat 904, ensuring that the position of the limiting seat 904 is easy to adjust, further making the position of the transmission belt 903 easy to adjust and having good stability. The locking assembly 10 includes a connecting platform 1001, a sleeve 1002, a latch 1003 and a spring 1004; The connecting platform 1001 is provided on the bracket 701, and the limiting seat 904 is slidably connected to the connecting platform 1001. The connecting platform 1001 is provided with a plurality of locking holes 10011; The sleeve 1002 is disposed on the limiting seat 904; The latch 1003 is slidably connected in the sleeve 1002 and movably inserted in the locking hole 10011; The spring 1004 is disposed between the sleeve 1002 and the latch 1003 .

[0036] 10011, thereby realizing the fast adjustment of the position of the limit seat 904 and the transmission belt 903, realizing different transmission ratios and changing the mixing ratio of the main storage barrel 704 and the auxiliary storage barrel 705.

[0037] Example 2: The present invention discloses a vacuum induction melting furnace for alloy melting. Figure 1-12 As shown, it includes a melting furnace body 1, a heating unit 2, a crucible 3, a bottom support 4, a mold base 5, a vacuum control unit 6, a feeding unit 7, a blanking control unit 8 and a proportional control mechanism 9; The heating unit 2 is provided on the smelting furnace body 1 , and the heating unit 2 includes a base 201 provided on the smelting furnace body 1 and a heating induction coil 202 provided on the base 201 ; The crucible 3 is disposed inside the heating induction coil 202; The bottom support 4 is arranged at the bottom of the smelting furnace body 1; The mold base 5 is arranged inside the bottom support 4; The vacuum control unit 6 is provided on the smelting furnace body 1 and is used for vacuuming the interior of the smelting furnace body 1; The feeding unit 7 is arranged above the smelting furnace body 1. The feeding unit 7 includes a main storage barrel 704 and an auxiliary storage barrel 705 arranged above the smelting furnace body 1, and a feeding pipe 702 fixedly connected to the smelting furnace body 1. The feeding pipe 702 is connected to the main storage barrel 704 and the auxiliary storage barrel 705 respectively. The unloading control unit 8 is provided on the main storage barrel 704 and is used to control the unloading of materials from the main storage barrel 704; The proportional control mechanism 9 is disposed between the main storage barrel 704 and the auxiliary storage barrel 705 and is used to drive the auxiliary storage barrel 705 to discharge materials. The proportional control mechanism 9 controls the discharge ratio of the main storage barrel 704 and the auxiliary storage barrel 705 .

[0038] The main material storage barrel 704 is internally rotatably connected to a main unloading cam 7041 for unloading, and the auxiliary material storage barrel 705 is internally rotatably connected to an auxiliary unloading cam 7051 for unloading. The unloading control unit 8 is used to drive the main unloading cam 7041 to rotate.

[0039] The proportional control mechanism 9 comprises: The first tapered roller 901 is mounted on the rotating shaft of the main unloading cam 7041; The second tapered roller 902 is mounted on the rotating shaft of the auxiliary unloading cam 7051; The transmission belt 903 is sleeved on the first tapered roller 901 and the second tapered roller 902; The limiting seat 904 is slidably connected above the smelting furnace body 1 and is used to control the position of the transmission belt 903 . The transmission belt 903 is arranged inside the limiting seat 904 .

[0040] The feeding unit 7 also includes a bracket 701 arranged on the smelting furnace body 1 and a preliminary mixing barrel 703 arranged above the feed pipe 702. The bottom material pipes of the main storage barrel 704 and the auxiliary storage barrel 705 are respectively fixedly connected to the preliminary mixing barrel 703. The bracket 701 is provided with a locking assembly 10 for limiting the limit seat 904.

[0041] The main storage barrel 704 and the auxiliary storage barrel 705 are respectively configured to store alloy raw materials of different compositions. The quantitative supply and proportion adjustment of the raw materials are achieved through the unloading control unit 8 and the proportion control mechanism 9, thereby ensuring precise control of the alloy composition. The preliminary mixing barrel 703 enables preliminary mixing of different raw materials before entering the smelting furnace, which is beneficial to improving the uniformity and quality stability of the alloy smelting. The bracket 701 provides a stable support for each component, ensuring a smooth and stable feeding process.

[0042] The locking assembly 10 comprises: The connecting platform 1001 is provided on the bracket 701, and the limiting seat 904 is slidably connected to the connecting platform 1001. The connecting platform 1001 is provided with a plurality of locking holes 10011; Sleeve 1002, set on the limiting seat 904; The latch 1003 is slidably connected in the sleeve 1002 and movably inserted in the locking hole 10011; The spring 1004 is disposed between the sleeve 1002 and the latch 1003 .

[0043] The blanking control unit 8 includes: The first worm 801 is rotatably connected to the upper part of the smelting furnace body 1; The first worm gear 802 is mounted on the rotating shaft of the main unloading cam 7041 and meshes with the first worm 801. The unloading control unit 8 utilizes a worm and worm gear transmission to precisely control the rotational speed of the main unloading cam 7041, thereby enabling precise control of the unloading amount from the main accumulator 704. This ensures that the alloy raw material is unloaded according to the set main amount, improving the accuracy of raw material supply and the controllability of the smelting process.

[0044] The vacuum control unit 6 comprises: A vacuum pump pipe 601 is provided on the smelting furnace body 1 and connected to a vacuum pump; A pressure relief pipe 602 is provided on the smelting furnace body 1 and a pressure relief valve 6021 is provided on the pressure relief pipe 602; The pressure gauge 603 is installed on the smelting furnace body 1 .

[0045] The vacuum control unit 6 can effectively reduce the gas content inside the smelting furnace through vacuum operation, reduce adverse phenomena such as oxidation and air absorption of the alloy during the smelting process, and improve the purity and quality of the alloy. At the same time, the pressure relief function can ensure the safety of the smelting process. The real-time monitoring of the pressure gauge 603 makes it easy for the operator to grasp the pressure status in the furnace in a timely manner, ensuring that the smelting process is carried out under a suitable pressure environment, which is conducive to improving the stability and safety of alloy smelting.

[0046] The bottom support 4 is provided with a plurality of groups of mold bases 5 and a transposition unit 11 for switching the positions of the plurality of groups of mold bases 5. The transposition unit 11 includes: The rotating seat 1101 is rotatably connected to the bottom support 4 and the interior of the smelting furnace body 1; The second worm gear 1102 is disposed on the rotating base 1101; The first motor 1103 is provided on the bottom support 4; The second worm 1104 is disposed at the output end of the first motor 1103 and meshes with the second worm gear 1102 .

[0047] The transposition unit 11 facilitates rapid switching between multiple mold bases 5, improves production efficiency, meets the production requirements of different alloy casting shapes and sizes, broadens the application range of the smelting furnace, reduces production costs, ensures the stability and accuracy of the transposition process, and is conducive to improving the production quality of alloy castings.

[0048] When the crucible 3 is unloading the molten metal raw material, it falls onto the corresponding mold base 5 below. When the mold base 5 is unloaded to the target capacity, the replacement unit 11 is used to rotate all the mold bases 5, so that multiple groups of mold bases 5 are replaced. This makes it convenient for the crucible 3 to unload the molten metal raw material again, and realizes the synchronous operation of multiple groups of mold bases 5. When the transposition unit 11 is working, the first motor 1103 drives the second worm 1104 to move, the second worm 1104 drives the second worm gear 1102 to move, the second worm gear 1102 drives the rotating seat 1101 to move, and the rotating seat 1101 then drives several groups of mold bases 5 to rotate, thereby realizing the transposition of several groups of mold bases 5.

[0049] The smelting furnace body 1 is provided with a stirring assembly 12, which includes: The second motor 1201 is provided on the smelting furnace body 1; The stirring rod 1202 is provided at the output end of the second motor 1201 and is located in the crucible 3. The stirring assembly 12 drives the stirring rod 1202 to rotate via the second motor 1201; The stirring assembly 12 stirs the molten alloy to make the alloy composition more uniform, avoid alloy performance differences caused by component segregation, and improve the performance and quality of the alloy. At the same time, the stirring process helps to melt and mix the alloy more fully, speed up the melting speed, and improve production efficiency.

[0050] The smelting furnace body 1 is provided with a blocking unit 13 for controlling the feeding of molten material into the crucible 3. The blocking unit 13 includes: The electric push rod 1301 is provided on the smelting furnace body 1; The lifting frame 1302 is provided at the output end of the electric push rod 1301; The plug 1303 is disposed on the lifting frame 1302 and aligned with the bottom opening of the crucible 3 . The plug 1303 is funnel-shaped and has a sealing member 13031 disposed therein for sealing the bottom opening of the crucible 3 .

[0051] The blocking unit 13 facilitates controlling the bottom opening of the crucible 3. When the electric push rod 1301 drives the lifting frame 1302 to move downward, the lifting frame 1302 drives the plug 1303 to move downward, and the plug 1303 drives the sealing member 13031 to move downward and disengage from the bottom opening of the crucible 3, so that the molten material begins to be discharged from the bottom of the crucible 3, and the material flows downward through the plug 1303 into the interior of the mold base 5. When the electric push rod 1301 drives the lifting frame 1302 to move upward, the lifting frame 1302 drives the plug 1303 to move upward, and the plug 1303 drives the sealing member 13031 to move upward and fit the bottom opening of the crucible 3, so that the bottom opening of the crucible 3 is closed and the material discharge is stopped, thereby facilitating cooperation with the transposition unit 11 to switch the mold base 5.

[0052] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or device comprising the element.

[0053] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A vacuum induction melting furnace for alloy melting, characterized in that: include: Melting furnace body (1); A heating unit (2) is provided on the smelting furnace body (1), wherein the heating unit (2) comprises a base (201) provided on the smelting furnace body (1) and a heating induction coil (202) provided on the base (201); A crucible (3) is arranged inside the heating induction coil (202); A bottom support (4) is provided at the bottom of the smelting furnace body (1); A mold base (5) is arranged inside the bottom support (4); A vacuum control unit (6) is provided on the smelting furnace body (1) and is used to evacuate the interior of the smelting furnace body (1); A feeding unit (7) is arranged above the smelting furnace body (1), the feeding unit (7) comprising a main storage barrel (704) and an auxiliary storage barrel (705) arranged above the smelting furnace body (1), and a feeding pipe (702) fixedly connected to the smelting furnace body (1), the feeding pipe (702) being respectively connected to the main storage barrel (704) and the auxiliary storage barrel (705); A material unloading control unit (8), arranged on the main material storage barrel (704) and used to control unloading of materials from the main material storage barrel (704); The proportional control mechanism (9) is arranged between the main storage barrel (704) and the auxiliary storage barrel (705) and is used to drive the auxiliary storage barrel (705) to discharge materials. The proportional control mechanism (9) controls the discharge ratio of the main storage barrel (704) and the auxiliary storage barrel (705).

2. A vacuum induction melting furnace for alloy melting according to claim 1, characterized in that: The main material storage barrel (704) is internally rotatably connected to a main unloading cam (7041) for unloading, and the auxiliary material storage barrel (705) is internally rotatably connected to an auxiliary unloading cam (7051) for unloading. The unloading control unit (8) is used to drive the main unloading cam (7041) to rotate.

3. A vacuum induction melting furnace for alloy melting according to claim 2, characterized in that: The proportional control mechanism (9) comprises: A first tapered roller (901) is arranged on the rotating shaft of the main unloading cam (7041); A second tapered roller (902) is arranged on the rotating shaft of the auxiliary unloading cam (7051); A transmission belt (903) is sleeved on the first tapered roller (901) and the second tapered roller (902); A limiting seat (904) is slidably connected above the smelting furnace body (1) and is used to control the position of a transmission belt (903), wherein the transmission belt (903) is arranged inside the limiting seat (904).

4. A vacuum induction melting furnace for alloy melting according to claim 3, characterized in that: The feeding unit (7) further comprises a bracket (701) arranged on the smelting furnace body (1) and a preliminary mixing barrel (703) arranged above the feeding pipe (702); the bottom material pipes of the main storage barrel (704) and the auxiliary storage barrel (705) are respectively fixedly connected to the preliminary mixing barrel (703); and a locking assembly (10) for limiting the position of the limiting seat (904) is provided on the bracket (701).

5. The vacuum induction melting furnace for alloy melting according to claim 4, characterized in that: The locking assembly (10) comprises: A connecting platform (1001) is provided on the bracket (701), the limiting seat (904) is slidably connected to the connecting platform (1001), and a plurality of locking holes (10011) are provided on the connecting platform (1001); A sleeve (1002) is disposed on the limiting seat (904); A latch (1003) is slidably connected in the sleeve (1002) and movably inserted in the locking hole (10011); A spring (1004) is provided between the sleeve (1002) and the latch (1003).

6. The vacuum induction melting furnace for alloy melting according to claim 2, characterized in that: The blanking control unit (8) comprises: A first worm (801) is rotatably connected to the upper portion of the smelting furnace body (1); The first worm wheel (802) is arranged on the rotating shaft of the main unloading cam (7041) and meshes with the first worm (801).

7. The vacuum induction melting furnace for alloy melting according to claim 1, characterized in that: The vacuum control unit (6) comprises: A vacuum pump pipe (601) is provided on the smelting furnace body (1) and is connected to a vacuum pump; A pressure relief pipe (602) is provided on the smelting furnace body (1), and a pressure relief valve (6021) is provided on the pressure relief pipe (602); A pressure gauge (603) is provided on the smelting furnace body (1).

8. The vacuum induction melting furnace for alloy melting according to claim 1, characterized in that: The bottom support (4) is provided with a plurality of groups of mold bases (5) and a position change unit (11) for switching the positions of the plurality of groups of mold bases (5). The position change unit (11) comprises: A rotating seat (1101) is rotatably connected to the bottom support (4) and the interior of the smelting furnace body (1); A second worm gear (1102) is disposed on the rotating seat (1101); A first motor (1103) is arranged on the bottom support (4); The second worm (1104) is arranged at the output end of the first motor (1103) and meshes with the second worm wheel (1102).

9. The vacuum induction melting furnace for alloy melting according to claim 1, characterized in that: The smelting furnace body (1) is provided with a stirring assembly (12), and the stirring assembly (12) comprises: A second motor (1201) is provided on the smelting furnace body (1); The stirring rod (1202) is arranged at the output end of the second motor (1201) and is located in the crucible (3).

10. The vacuum induction melting furnace for alloy melting according to claim 1, characterized in that: The smelting furnace body (1) is provided with a blocking unit (13) for controlling the discharge of molten material into the crucible (3), and the blocking unit (13) comprises: An electric push rod (1301) is provided on the smelting furnace body (1); A lifting frame (1302) is provided at the output end of the electric push rod (1301); A plug (1303) is provided on the lifting frame (1302) and aligned with the bottom opening of the crucible (3); the plug (1303) is funnel-shaped, and a sealing member (13031) is provided inside the plug (1303) for closing the bottom opening of the crucible (3).

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