Small light alloy smelting furnace with mechanical stirring function

Abstract

The small light alloy smelting furnace with the mechanical stirring function comprises a cavity and a sealing door arranged on one side of the cavity, and is characterized in that the upper end and the lower end of the cavity are provided with an equipment mounting part and a mold containing part respectively, and a smelting furnace body is arranged in the cavity; a lifting and stirring mechanism corresponding to the smelting furnace is arranged on the equipment mounting part; a turnover mechanism for controlling the smelting furnace to rotate and a vacuum control assembly for controlling the gas atmosphere in the cavity are arranged on the cavity; the turnover mechanism comprises a connecting support arranged on one side of the smelting furnace and a rotating shaft fixedly connected with the connecting support, the rotating shaft penetrates through the cavity and is connected with a turnover handle, and a sealing flange corresponding to the rotating shaft is arranged on the side wall of the cavity. The designed light alloy smelting furnace is simple in structure, metal materials can be fed for multiple times, molten metal can be stirred, the singleness of smelted metal materials is avoided, the smelting uniformity of the metal materials is improved, the casting temperature of the molten metal can be guaranteed, the casting speed can be accurately controlled, and the production efficiency is improved. And the smelting capacity of the metal smelting furnace is greatly improved.

Description

Technical Field

[0001] The present invention relates to the technical field of casting furnaces, and particularly to a small light alloy melting furnace with mechanical stirring. Background Art

[0002] With the rapid development of modern industrial technology, higher requirements are put forward for the properties of metal materials such as high temperature resistance, wear resistance, and fatigue resistance. For certain specific metal alloy materials, whether it is for preliminary research and development tests or large-scale production and use in the later stage, metal melting and casting equipment is required to study or obtain high-performance metal alloy materials.

[0003] However, the structures of current metal melting and casting equipment are relatively complex, increasing production costs. At the same time, after the sample of the alloy material is melted and cast, when the traditional furnace pours the molten metal, it is not stable enough, prone to vibration, and causing the molten metal to leak out. Summary of the Invention

[0004] The purpose of the present invention is to solve the disadvantages in the prior art that after the sample of the alloy material is melted and cast, the traditional furnace is not stable enough when pouring the molten metal and the molten metal is prone to sputtering, and a small light alloy melting furnace with mechanical stirring is proposed.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A small light alloy melting furnace with mechanical stirring, including a cavity and a sealing door arranged on one side of the cavity. It is characterized in that equipment installation parts and mold placement parts are respectively arranged at the upper and lower ends of the cavity, and a melting furnace is arranged in the cavity;

[0007] A lifting and stirring mechanism is arranged on the equipment installation part corresponding to the melting furnace, and a flipping mechanism for controlling the rotation of the melting furnace and a vacuum control component for controlling the gas atmosphere in the cavity are arranged on the cavity;

[0008] The flipping mechanism includes a connection bracket arranged on one side of the melting furnace and a rotating shaft fixedly connected to the connection bracket. The rotating shaft passes through the cavity and is connected with a flipping handle, and a sealing flange is arranged on the cavity side wall corresponding to the rotating shaft.

[0009] Preferably, the lifting and stirring mechanism includes a stirring head corresponding to the hearth of the melting furnace, a stirring motor arranged on the equipment installation part for driving the stirring head to rotate, and a linear motor for controlling the lifting of the stirring motor. Among them, a connecting rod is connected between the output end of the stirring motor and the stirring head, and the connecting rod passes through the equipment installation part and is slidably and sealedly connected thereto.

[0010] More preferably, limiting components are arranged on both the upper and lower sides of the linear motor.

[0011] Preferably, a multi-feed pipe is vertically and penetratingly provided on the equipment installation part, and the lower end of the multi-feed pipe is adapted to the position of the melting furnace hearth.

[0012] Preferably, a water-cooling component is provided in the mold placement part, and the water-cooling component is provided with a water-cooling interface connected to a cooling water pump.

[0013] Preferably, a vacuum control component is provided on one side of the cavity. The vacuum control component includes an air inlet, a pressure relief port, a vacuum port, and a vacuum pressure gauge penetratingly installed on the cavity.

[0014] Preferably, a heating coil for heating the hearth is provided inside the melting furnace.

[0015] More preferably, a material guiding groove connected to the hearth is provided at the upper end of the melting furnace.

[0016] Preferably, matching locking components are provided on the sealing door and the cavity, and an observation window is embedded on the sealing door.

[0017] Preferably, a base for supporting the cavity is provided below the cavity, and a control component is provided inside the base.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0019] 1. In the present invention, through the nested design of the cavity and the melting furnace, the melting and casting of alloy materials can be completed entirely in the cavity, ensuring the safety and stability of light alloy melting, and being able to be carried out under a protective gas throughout the process, greatly ensuring the purity and stability of the alloy materials and improving the melting quality of the alloy materials;

[0020] 2. In the present invention, through the design of the flipping mechanism, the casting of the melting furnace can be manually controlled, ensuring the controllability of casting, facilitating the control of the casting speed and the amount of molten metal, and ensuring the casting quality and safety;

[0021] 3. In the present invention, through the lifting and stirring mechanism and the multi-feed pipe provided on the cavity, multiple materials can be added in batches, and the molten metal materials can be stirred, improving the uniformity of the melting materials and enhancing the use effect of the light alloy melting furnace.

[0022] The light alloy melting furnace designed by the present invention has a simple structure, can perform multiple feedings of metal materials and realize the stirring of molten metal, avoiding the singularity of melting metal materials, improving the uniformity of melting of metal materials, and being able to ensure the casting temperature of molten metal and accurately control the casting speed, greatly enhancing the melting capacity of the metal melting furnace. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0024] Figure 2 Left side view schematic diagram of a part of the structure of the present invention.

[0025] Figure 3 Top view schematic diagram of the present invention.

[0026] Figure 4 Schematic diagram of the internal structure of the cavity of the present invention.

[0027] In the figure: cavity 1, equipment installation part 11, mold placement part 12, water cooling component 121, base 13, sealing door 2, observation window 21, locking component 3, melting furnace 4, material guiding groove 41, wiring port 42, multi - feeding pipe 5, lifting and stirring mechanism 6, stirring head 61, connecting rod 62, stirring motor 63, linear motor 64, flipping mechanism 7, flipping handle 71, sealing flange 72, rotating shaft 73, connecting bracket 74, vacuum control component 8, air inlet 81, pressure relief port 82, vacuum port 83, control component 9. Detailed implementation manners

[0028] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0029] Refer to Figures 1-4 , a small - sized light alloy melting furnace with mechanical stirring, including a cavity 1 and a sealing door 2 arranged on one side of the cavity 1. It is characterized in that equipment installation parts 11 and mold placement parts 12 are respectively arranged at the upper and lower ends of the cavity 1, which are respectively used for installing melting furnace equipment and placing casting molds. A melting furnace 4 is arranged in the cavity 1 for melting metal materials.

[0030] A lifting and stirring mechanism 6 corresponding to the melting furnace 4 is arranged on the equipment installation part 11, which is used for stirring and mixing the metal melted in the melting furnace 4, facilitating the improvement of the uniformity of material melting during the melting of multiple metals, and improving the R & D and test effects of metal alloy materials. A flipping mechanism 7 for controlling the rotation of the melting furnace 4 and a vacuum control component 8 for controlling the gas atmosphere in the cavity 1 are arranged on the cavity 1, which are used for flipping the melting furnace 4 and controlling the injection of the metal liquid into the mold for casting. It is not necessary to take out the melted metal solution, which can effectively ensure the fluidity of the metal liquid and the casting quality. By controlling the gas atmosphere, the vacuum degree and gas atmosphere in the cavity 1 can also be effectively controlled, ensuring the stability of the metal material after melting.

[0031] The tilting mechanism 7 includes a connecting bracket 74 arranged on one side of the smelting furnace 4 and a rotating shaft 73 fixedly connected to the connecting bracket 74. The rotating shaft 73 passes through the cavity 1 and is connected with a tilting handle 71, which can be controlled manually or connected to a servo motor to ensure the control effect of tilting and casting the smelting furnace 4. A sealing flange 72 corresponding to the rotating shaft 73 is provided on the side wall of the cavity 1. Among them, the rotating shaft 73 can be made of 304 stainless steel material, and the connecting bracket 74 can be made of an aluminum alloy triangular bracket to ensure the strength of the rotating shaft 73 and the connecting bracket 74 and improve the stability of the tilting mechanism 7. The sealing flange 72 ensures the sealing effect at the rotating shaft 73, the sealing effect inside the cavity 1, and the control effect of the gas atmosphere inside the cavity 1. When it is necessary to tilt and cast the smelting furnace 4, use a servo motor or manual control to tilt the smelting furnace 4, and pour the molten metal into the mold for casting, which can effectively control the casting speed and the casting amount of the molten metal.

[0032] Based on the above technical solution, when using this alloy smelting furnace for alloy smelting, place various metal materials to be smelted in the furnace cavity of the smelting furnace 4, and place the mold at the designated position. Close the sealing door 2 and use the vacuum control assembly 8 to evacuate the cavity 1 until the pressure inside the cavity 1 is -0.1 MPa, then introduce a protective gas into the cavity 1 until it is slightly negative pressure, repeat multiple times, and finally fill the protective gas until the pressure inside the cavity 1 reaches -0.05 MPa to 0.01 MPa.

[0033] After the preparatory work is completed, start the smelting furnace 4 to heat and melt the metal materials until they are in a liquid state. Use the lifting and stirring mechanism 6 to stir the metal materials. After stirring, perform casting. Control the tilting of the smelting furnace 4 through the tilting handle 71, pour the materials into the mold and cool them. After cooling, restore the pressure inside the cavity 1 to atmospheric pressure, and then open the sealing door 2 to take out the alloy sample.

[0034] In this technical solution, such as Figures 1-4As shown in the figure, the lifting and stirring mechanism 6 includes a stirring head 61 corresponding to the furnace chamber of the melting furnace, a stirring motor 63 arranged on the equipment installation part 11 for driving the stirring head 61 to rotate, and a linear motor 64 for controlling the lifting of the stirring motor 63. Among them, limit components are arranged on both the upper and lower sides of the linear motor 64. A connecting rod 62 is connected between the output end of the stirring motor 63 and the stirring head 61. The connecting rod 62 passes through the equipment installation part 11 and is slidably and hermetically connected to it, such as using a GO seal ring, etc., to ensure the tightness of the cavity 1. During alloy melting, the linear motor 64 drives the stirring head 61 to lift, which is convenient to control the stirring head 61 to extend into the liquid alloy and start the stirring motor 63 to drive the stirring head 61 to rotate for stirring. After stirring is completed, control the stirring head 61 to rise. Through the limit components arranged on both the upper and lower sides of the linear motor 64, the movement range of the stirring head 61 can also be effectively controlled, avoiding the stirring head 61 from colliding with or affecting the flipping of the melting furnace 4, and ensuring the safety of equipment use.

[0035] In this technical solution, as Figures 1-4 shown, a multi-feed pipe 5 is vertically and penetratingly arranged on the equipment installation part 11. The lower end of the multi-feed pipe 5 is adapted to the position of the furnace chamber of the melting furnace 4. When melting multiple metals, the multi-feed pipe 5 can be used to add metal materials into the melting furnace 4 in batches, which is convenient for controlling the addition sequence of materials during the research and development of alloy materials, and can also timely adjust the material control of the metal alloy, facilitating the research and development test of the metal alloy.

[0036] In this technical solution, as Figures 1-4 shown, a water-cooling component 121 is arranged in the mold placement part 12. The water-cooling component 121 is provided with a water-cooling interface connected to a cooling water pump. After casting is completed, the mold placed in the mold placement part 12 can be cooled through the water-cooling component 121 to improve the cooling speed.

[0037] In this technical solution, as Figures 1-4 shown, a vacuum control component 8 is arranged on one side of the cavity 1. The vacuum control component 8 includes an air inlet 81, a pressure relief port 82, a vacuum port 83 and a vacuum pressure gauge 84 that are installed through the cavity 1, and valves are respectively provided. The air inlet 81 is used to send a protective gas, such as helium, into the cavity 1. A rotameter can be arranged at the air inlet to facilitate the monitoring of the feeding of the protective gas. The pressure relief port 82 is used to restore the air pressure in the cavity 1 to the atmospheric pressure after casting is completed, which is convenient for opening the sealing door 2. The other end of the vacuum port 83 is connected to a vacuum pump. The cavity 1 is evacuated through the cooperation of the vacuum pump and the vacuum port 83 to extract the miscellaneous gas in the cavity 1 and ensure the stability of the melted metal. During evacuation, the vacuum degree and pressure in the cavity 1 are monitored in cooperation with the vacuum pressure gauge 84. After evacuation, the change of the vacuum pressure gauge 84 can be observed to confirm the tightness of the cavity 1 and ensure good sealing effect of the cavity 1.

[0038] In this technical solution, as Figures 1-4 shown, a heating coil for heating the furnace chamber is provided inside the melting furnace 4, and a material guiding groove 41 connected to the furnace chamber is provided at the upper end of the melting furnace 4. A wiring port 42 connected to the heating coil can be provided on the cavity 1, and the other end of the wiring port 42 can be connected to the control component 9, which is convenient for controlling the heating temperature of the heating coil. The metal material in the furnace chamber is heated by the heating coil, which is convenient for controlling the heating speed and temperature. A thermocouple can also be provided on the melting furnace 4 to monitor the temperature, ensuring accurate detection of the temperature of the metal material in the furnace chamber. When it is necessary to pour the metal material into the mold, the molten metal is guided through the material guiding groove 41 to ensure that the molten metal will not splash when poured, ensuring the stability and safety of the pouring of the molten metal.

[0039] In this technical solution, as Figures 1-4 shown, a matching locking component 3 is provided on the sealing door 2 and the cavity 1, and an observation window 21 is embedded on the sealing door 2. The sealing door 2 is locked by the locking component 3 to ensure the sealing effect. The locking component 3 can use a hand-twist screw, which is convenient to use and can also ensure a good locking effect. Through the observation window 21, it is convenient to monitor the melting state of the metal material and the pouring state of the melting furnace 4, ensuring the stability of the casting of the metal material.

[0040] In this technical solution, as Figures 1-4 shown, a base 13 for supporting the cavity 1 is provided below the cavity 1, and a control component 9 is provided inside the base 13. The control component is provided with an electric control panel, and a main power knob, a vacuum pump power switch, a standby power switch, a lifting speed adjustment meter, a rising button, a descending button, a stirring speed adjustment meter, a stirring start button, a stirring stop button, a PID temperature control meter, a heating indicator light, a control system power switch, etc. can be set on the electric control panel, which is used to control devices such as the heating coil, the lifting and stirring mechanism 6, the stirring motor 63, the linear motor 64, and the valves provided at the air inlet 81, the pressure relief port 82, and the vacuum port 83, improving the automation degree of the light alloy melting furnace and ensuring the simplicity and convenience of equipment use.

[0041] The above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. A small mechanical stirring light alloy melting furnace, comprising a cavity (1) and a sealing door (2) arranged on one side of the cavity (1), characterized in that, The upper and lower ends of the cavity (1) are respectively provided with a device installation part (11) and a mold placement part (12), and a melting furnace (4) is arranged inside the cavity (1); On the device installation part (11), a lifting and stirring mechanism (6) is arranged corresponding to the melting furnace (4). On the cavity (1), a turnover mechanism (7) for controlling the rotation of the melting furnace (4) and a vacuum control component (8) for controlling the gas atmosphere inside the cavity (1) are provided; The turnover mechanism (7) includes a connection bracket (74) arranged on one side of the melting furnace (4) and a rotating shaft (73) fixedly connected to the connection bracket (74). The rotating shaft (73) passes through the cavity (1) and is connected with a turnover handle (71). A sealing flange (72) is arranged on the side wall of the cavity (1) corresponding to the rotating shaft (73).

2. A small mechanical stirring light alloy melting furnace according to claim 1, characterized in that The lifting and stirring mechanism (6) includes a stirring head (61) arranged corresponding to the furnace chamber of the melting furnace, a stirring motor (63) arranged on the device installation part (11) for driving the stirring head (61) to rotate, and a linear motor (64) for controlling the lifting of the stirring motor (63). A connecting rod (62) is connected between the output end of the stirring motor (63) and the stirring head (61). The connecting rod (62) penetrates through the device installation part (11) and is slidably and sealingly connected to it.

3. A small mechanical stirring light alloy melting furnace according to claim 2, characterized in that, Limit components are arranged on both the upper and lower sides of the linear motor (64).

4. A small mechanical stirring light alloy melting furnace according to claim 1, characterized in that, A multi-feed pipe (5) is vertically and penetratingly arranged on the device installation part (11), and the lower end of the multi-feed pipe (5) is adapted to the position of the furnace chamber of the melting furnace (4).

5. A small mechanical stirring light alloy melting furnace according to claim 1, characterized in that, A water cooling component (121) is arranged inside the mold placement part (12), and the water cooling component (121) is provided with a water cooling interface connected to a cooling water pump.

6. A small mechanical stirring light alloy melting furnace according to claim 1, characterized in that, The vacuum control component (8) includes an air inlet (81), a pressure relief port (82), a vacuum port (83), and a vacuum pressure gauge (84) that are penetratingly installed on the cavity (1).

7. A small mechanical stirring light alloy melting furnace according to claim 1, characterized in that, A heating coil for heating the furnace chamber is arranged inside the melting furnace (4).

8. A small mechanical stirring light alloy melting furnace according to claim 6, characterized in that, A material guiding groove (41) connected to the furnace chamber is arranged at the upper end of the melting furnace (4).

9. A small mechanical stirring light alloy melting furnace according to claim 1, characterized in that, A matching locking component (3) is arranged on the sealing door (2) and the cavity (1), and an observation window (21) is embedded on the sealing door (2).

10. A small mechanical stirring light alloy melting furnace according to any one of claims 1-9, characterized in that, A base (13) for supporting the cavity (1) is arranged below the cavity (1), and a control component (9) is arranged inside the base (13).

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