A vacuum induction furnace charging device

Abstract

The utility model discloses a kind of vacuum induction furnace feeding devices, it is related to alloy processing technical field, including upper top cover, vacuum gauge is fixedly installed in upper top cover front left side, the vacuum gauge is through upper top cover, pressure relief valve is fixedly installed in upper top cover front right side, the pressure relief valve is through upper top cover, sealing seat is fixedly installed in upper top cover upper side, the sealing seat is arranged in upper top cover middle position, injection pipe is rotatably installed in the sealing seat, throttling valve is movably installed in injection pipe, material box is fixedly installed in the top of injection pipe, the handle of detachably mounting is installed on the top of material box, injection assembly is fixedly installed in the bottom of upper top cover, the utility model effectively guarantees the sealing property in material box, it is convenient to replace and add transition alloy, effectively improve smelting production efficiency, adjust the flow rate of transition alloy, it is convenient to better control the smelting process of target alloy.

Description

Technical Field

[0001] This utility model belongs to the field of alloy processing, and specifically relates to a vacuum induction furnace feeding device. Background Technology

[0002] Vacuum induction furnaces have advantages such as preventing oxidation of active metals, effectively removing gases, non-metallic inclusions, and non-ferrous metal impurities from alloys, and improving the purity of alloys. Therefore, they are widely used in smelting easily oxidized non-ferrous metals such as magnesium alloys, zirconium alloys, and copper alloys, as well as ferrous metals such as steel. The working principle of a vacuum induction furnace is to use electromagnetic induction to generate current in the metal charge itself. Then, relying on the resistance of the metal charge itself, according to Joule's law, electrical energy is converted into heat energy to melt the metal.

[0003] In actual smelting processes, it may be necessary to add a certain amount of reactive elements such as aluminum, rare earth elements, magnesium, titanium, and zirconium. If these reactive elements are directly placed into the crucible along with the base alloy and heated in a vacuum environment, the different saturated vapor pressures of the various alloying elements can easily cause the reactive elements to burn off, making it difficult to control the alloy composition. Therefore, a suitable feeding device is required to match the vacuum induction furnace.

[0004] Existing feeding devices can only add alloys individually and cannot adjust the flow rate according to the actual smelting process. At the same time, changing or adding alloys is quite troublesome, which affects the smelting production efficiency.

[0005] Therefore, we propose a feeding device for a vacuum induction furnace. Utility Model Content

[0006] This invention provides a vacuum induction furnace feeding device to solve the technical problems mentioned in the background section.

[0007] To solve the above-mentioned technical problems, this utility model provides a vacuum induction furnace feeding device, including an upper cover, a vacuum gauge fixedly installed on the left front of the upper cover, the vacuum gauge penetrating the upper cover, a pressure relief valve fixedly installed on the right front of the upper cover, the pressure relief valve penetrating the upper cover, a sealing seat fixedly installed above the upper cover, the sealing seat being arranged in the middle of the upper cover, a feeding pipe rotatably installed inside the sealing seat, a throttle valve movably installed inside the feeding pipe, a material box fixedly installed on the top of the feeding pipe, a rotating handle detachably installed on the top of the material box, and a feeding assembly fixedly installed at the bottom of the upper cover.

[0008] Preferably, the sealing seat has a threaded hole in the middle, the injection tube has an external thread on the outside, and the injection tube is threadedly connected to the sealing seat.

[0009] Preferably, the injection assembly includes a truss, the truss is fixedly installed at the bottom of the upper cover, the truss is arranged at the middle position of the bottom of the upper cover, a nozzle is fixedly installed at the middle position of the truss, and an inner material tube is fixedly installed at the top of the nozzle.

[0010] Preferably, the throttle valve includes a sleeve, the sleeve is slidably installed on the inner wall above the injection pipe, the sleeve opening is arranged downwards, the inner wall of the material box is fixedly installed with an internal suspension, a buffer spring is fixedly installed below the internal suspension, the other end of the buffer spring is fixedly connected to the top of the sleeve, the side wall of the sleeve has a through hole, and the sleeve passes through the sleeve.

[0011] Preferably, the top of the material box has a filling port, the filling port has a sealing cover, the rotating handle is fixedly installed on the sealing cover, and the sealing cover is transitionally fitted with the filling port.

[0012] Preferably, the outer side of the sealing cover is fixedly installed with buckles, and there are two buckles, which are symmetrically arranged. The inner wall of the injection port is provided with a slot, which is arranged corresponding to the buckle, and the buckle is engaged in the slot.

[0013] This invention has the following advantages over the prior art: 1. The present invention relates to a vacuum induction furnace feeding device. When in use, first pull the rotating handle upward, the rotating handle drives the sealing cover upward, thereby causing the buckles on both sides of the sealing cover to slide in the slot, which can open the sealing cover and directly add transition alloy into the material box. Due to the transition fit between the sealing cover and the filling port, the sealing of the material box is effectively guaranteed, which facilitates the replacement and addition of transition alloy and effectively improves the smelting production efficiency.

[0014] 2. This utility model discloses a vacuum induction furnace feeding device. When a transition alloy needs to be added, the crank is rotated, which drives the material box to rotate. The material box drives the injection pipe to rotate. The injection pipe is threadedly connected to the sealing seat, so it rotates along the sealing seat and moves downward. The inner material tube is located inside the injection pipe. When the inner material tube contacts the sleeve, the crank is rotated again. At this time, the inner material tube pushes the sleeve upward. The sleeve moves upward along the inner wall of the injection pipe and compresses the buffer spring. As the sleeve rises, a through hole is opened on the side wall of the sleeve, which communicates with the material box. The transition alloy enters the sleeve through the through hole and falls into the crucible through the inner material tube and nozzle connected to it, which facilitates the rapid injection of the transition alloy. At the same time, by adjusting the number of rotations of the crank, the contact surface between the through hole on the outside of the sleeve and the material box can be controlled, thereby adjusting the flow rate of the transition alloy and facilitating better control of the melting process of the target alloy.

[0015] 3. The vacuum induction furnace feeding device of this utility model adopts a separate structure of the feeding pipe and the nozzle, which avoids the possibility of the transition metal flowing out incorrectly when no addition is needed, and improves the accuracy of melting. Attached Figure Description

[0016] Figure 1 This is a structural diagram of a vacuum induction furnace feeding device according to the present invention; Figure 2 This is a bottom view of the structure of a vacuum induction furnace feeding device according to the present invention; Figure 3 This is an exploded structural diagram of the material box in a vacuum induction furnace feeding device according to this utility model; Figure 4 This is a cross-sectional view of the material box in a vacuum induction furnace feeding device according to the present invention. The following are the labels in the diagram: 1. Top cover; 2. Vacuum gauge; 3. Pressure relief valve; 4. Sealing seat; 5. Material box; 6. Rotary handle; 7. Injection pipe; 8. Truss; 9. Nozzle; 10. Inner material pipe; 11. Sealing cover; 12. Buckle; 13. Injection port; 14. Slot; 15. Sleeve; 16. Through hole; 17. Buffer spring; 18. Internal suspension. Detailed Implementation

[0017] The present invention will be further described below with reference to specific embodiments. The accompanying drawings are for illustrative purposes only, representing schematic diagrams rather than actual physical objects, and should not be construed as limiting the scope of this patent. To better illustrate the embodiments of the present invention, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.

[0018] In the accompanying drawings of this utility model, the same or similar reference numerals correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper," "lower," "left," and "right" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0019] Please see Figure 1-4This utility model provides a technical solution: a vacuum induction furnace feeding device, including an upper cover 1, a vacuum gauge 2 fixedly installed on the left front of the upper cover 1, the vacuum gauge 2 penetrating the upper cover 1, a pressure relief valve 3 fixedly installed on the right front of the upper cover 1, the pressure relief valve 3 penetrating the upper cover 1, a sealing seat 4 fixedly installed above the upper cover 1, the sealing seat 4 being arranged in the middle of the upper cover 1, a material injection pipe 7 rotatably installed inside the sealing seat 4, a throttle valve movably installed inside the material injection pipe 7, a material box 5 fixedly installed on the top of the material injection pipe 7, a rotating handle 6 detachably installed on the top of the material box 5, and a material injection assembly fixedly installed at the bottom of the upper cover 1.

[0020] In this embodiment, by enabling the quick disassembly of the sealing cap 11, the sealing of the material box 5 is ensured, while facilitating the replacement and addition of the transition alloy, effectively improving the smelting production efficiency. At the same time, by adopting a separate structure for the injection pipe 7 and the nozzle, the flow rate of the transition alloy can be adjusted, making it easier to control the smelting process of the target alloy and avoiding the possibility of the transition metal flowing out incorrectly when no addition is needed, thus improving the accuracy of smelting.

[0021] Furthermore, the sealing seat 4 has a threaded hole in the middle, and the injection tube 7 has an external thread on the outside, and the injection tube 7 is threadedly connected to the sealing seat 4.

[0022] In this embodiment, by making the sealing seat 4 threadedly connected to the injection pipe 7, the sealing performance of the vacuum furnace is ensured on the one hand, and the depth of the injection pipe 7 is easily controlled on the other hand.

[0023] Furthermore, the injection assembly includes a truss 8, which is fixedly installed at the bottom of the upper cover 1. The truss 8 is arranged at the middle position of the bottom of the upper cover 1. A nozzle 9 is fixedly installed at the middle position of the truss 8. An inner material tube 10 is fixedly installed at the top of the nozzle 9.

[0024] In this embodiment, by adopting a separate structure for the injection pipe 7 and the nozzle, the possibility of erroneous flow of transition metal when no addition is needed is avoided, thereby improving the accuracy of smelting.

[0025] Furthermore, the throttle valve includes a sleeve 15, which is slidably installed on the inner wall above the injection pipe 7. The sleeve 15 is arranged with its opening facing downwards. An internal suspension 18 is fixedly installed on the inner wall of the material box 5. A buffer spring 17 is fixedly installed below the internal suspension 18. The other end of the buffer spring 17 is fixedly connected to the top of the sleeve 15. A through hole 16 is opened on the side wall of the sleeve 15, and the sleeve 15 passes through the sleeve 15.

[0026] In this embodiment, rotating the handle 6 causes the material box 5 to rotate, which in turn causes the injection pipe 7 to rotate. The injection pipe 7 is threadedly connected to the sealing seat 4, thus rotating and moving downward along the sealing seat 4. The inner material pipe 10 is located inside the injection pipe 7. When the inner material pipe 10 contacts the sleeve 15, the crank is rotated further. At this time, the inner material pipe 10 pushes the sleeve 15 upward, and the sleeve 15 moves upward along the inner wall of the injection pipe 7, compressing the buffer spring 17. As the sleeve 15 rises, a through hole 16 is opened on the side wall of the sleeve 15, which communicates with the material box 5. The transition alloy enters the sleeve 15 through the through hole 16 and falls into the crucible through the inner material pipe 10 and the nozzle connected to it, which facilitates the rapid injection of the transition alloy. At the same time, by adjusting the number of rotations of the handle 6, the contact surface between the outer through hole 16 of the sleeve 15 and the material box 5 can be controlled, thereby adjusting the flow rate of the transition alloy and facilitating better control of the melting process of the target alloy.

[0027] Furthermore, the top of the material box 5 is provided with a material inlet 13, and a sealing cover 11 is provided inside the material inlet 13. The rotating handle 6 is fixedly installed on the sealing cover 11, and the sealing cover 11 and the material inlet 13 are fitted together.

[0028] In this embodiment, the sealing cap 11 and the filling port 13 are fitted together to effectively ensure the sealing of the material box 5, facilitate the replacement and addition of transition alloys, and effectively improve the smelting production efficiency.

[0029] Furthermore, a buckle 12 is fixedly installed on the outside of the sealing cover 11. There are two buckles 12, and the two buckles 12 are arranged symmetrically. A groove 14 is opened on the inner wall of the injection port 13. The groove 14 is arranged corresponding to the buckle 12, and the buckle 12 is engaged in the groove 14.

[0030] In this embodiment, by setting the buckle 12, the sealing cover 11 is prevented from being accidentally opened during the rotation of the handle 6.

[0031] Working principle: In use, first pull the handle 6 upwards. The handle 6 moves the sealing cover 11 upwards, causing the latches 12 on both sides of the sealing cover 11 to slide in the slots 14, opening the sealing cover 11 and allowing the addition of transition alloy directly into the material box 5. Due to the transition fit between the sealing cover 11 and the injection port 13, the sealing of the material box 5 is effectively guaranteed, facilitating the replacement and addition of transition alloy and effectively improving smelting production efficiency. When it is necessary to add transition alloy, rotate the handle 6. The handle 6 rotates the material box 5, which in turn rotates the injection pipe 7. The injection pipe 7 is threadedly connected to the sealing seat 4, thus rotating and moving downwards along the sealing seat 4. The inner material pipe 10 is located at... Inside the injection tube 7, after the inner tube 10 contacts the sleeve 15, the crank continues to rotate. At this time, the inner tube 10 pushes the sleeve 15 upward, and the sleeve 15 moves upward along the inner wall of the injection tube 7, compressing the buffer spring 17. As the sleeve 15 rises, a through hole 16 is opened on the side wall of the sleeve 15 to communicate with the material box 5. The transition alloy enters the sleeve 15 through the through hole 16 and falls into the crucible through the inner tube 10 and the nozzle connected to it, which facilitates the rapid injection of the transition alloy. At the same time, by adjusting the number of rotations of the crank 6, the contact surface between the outer through hole 16 of the sleeve 15 and the material box 5 can be controlled, thereby adjusting the flow rate of the transition alloy and making it easier to better control the melting process of the target alloy.

[0032] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating this utility model, and are not intended to limit the implementation of this utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A vacuum induction furnace feeding device, comprising an upper top cover (1), characterized in that: A vacuum gauge (2) is fixedly installed on the left front of the top cover (1), and the vacuum gauge (2) penetrates the top cover (1). A pressure relief valve (3) is fixedly installed on the right front of the top cover (1), and the pressure relief valve (3) penetrates the top cover (1). A sealing seat (4) is fixedly installed on the top of the top cover (1), and the sealing seat (4) is located in the middle of the top cover (1). A material injection pipe (7) is rotatably installed inside the sealing seat (4). A throttle valve is movably installed inside the material injection pipe (7). A material box (5) is fixedly installed on the top of the material injection pipe (7). A rotating handle (6) is detachably installed on the top of the material box (5). A material injection assembly is fixedly installed on the bottom of the top cover (1).

2. The vacuum induction furnace feeding device according to claim 1, characterized in that, The sealing seat (4) has a threaded hole in the middle, and the injection tube (7) has an external thread on the outside. The injection tube (7) is threadedly connected to the sealing seat (4).

3. The vacuum induction furnace feeding device according to claim 1, characterized in that, The injection assembly includes a truss (8), the truss (8) is fixedly installed at the bottom of the top cover (1), the truss (8) is arranged at the middle position of the bottom of the top cover (1), the nozzle (9) is fixedly installed at the middle position of the truss (8), and the inner material tube (10) is fixedly installed at the top of the nozzle (9).

4. The vacuum induction furnace feeding device according to claim 1, characterized in that, The throttle valve includes a sleeve (15). The sleeve (15) is slidably installed on the inner wall above the injection pipe (7). The sleeve (15) is arranged with its opening facing downward. An internal suspension (18) is fixedly installed on the inner wall of the material box (5). A buffer spring (17) is fixedly installed below the internal suspension (18). The other end of the buffer spring (17) is fixedly connected to the top of the sleeve (15). A through hole (16) is opened on the side wall of the sleeve (15). The sleeve (15) passes through the sleeve (15).

5. A vacuum induction furnace feeding device according to claim 1, characterized in that, The top of the material box (5) is provided with a material inlet (13), and a sealing cover (11) is provided inside the material inlet (13). The rotating handle (6) is fixedly installed on the sealing cover (11), and the sealing cover (11) and the material inlet (13) are in transition fit.

6. A vacuum induction furnace feeding device according to claim 5, characterized in that, The sealing cap (11) is fixedly installed with buckles (12) on the outside. There are two buckles (12), and the two buckles (12) are arranged symmetrically. The inner wall of the injection port (13) is provided with a slot (14). The slot (14) is arranged correspondingly to the buckle (12), and the buckle (12) is engaged in the slot (14).

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