Multi-station vacuum metal quantitative casting equipment

Abstract

The utility model relates to the technical field of metal casting, and discloses multi-station vacuum metal quantitative casting equipment, which is characterized in that a vacuum chamber is arranged and a casting environment with a certain vacuum degree is created, so that the casting process of molten metal is completed in the environment with the certain vacuum degree, and the influence of gas and impurities on the molten metal is effectively reduced; meanwhile, according to the scheme, the multiple casting molds are arranged in the vacuum chamber, the casting tables are controlled to rotate at intervals, the multiple molds can be sequentially cast in turn, under the design of multiple stations, different working procedures can be carried out at different stations, and therefore the multiple working procedures such as casting and cooling of molten metal are carried out at the same time in the vacuum chamber, and the production efficiency is improved. And the overall production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of metal casting, in particular to a multi-station vacuum metal quantitative casting device. Background Art

[0002] Currently, during the molten metal casting process, due to the lack of effective deoxidation measures or improper operation of deoxidation measures, a large number of oxide inclusions are often present inside the product. These inclusions not only reduce the purity of the product, but may also affect its physical properties and processing performance, such as conductivity and ductility. Moreover, the current molten metal casting equipment is unable to cast multiple molds in turn, and it is impossible to perform casting and cooling processes of multiple molds simultaneously, resulting in low production efficiency. Utility Model Content

[0003] The purpose of the utility model is to provide a multi-station vacuum metal quantitative casting equipment for solving the problem in the prior art that the molten metal is easily affected by gases and impurities during casting, resulting in low purity and low production efficiency.

[0004] In order to achieve the above objectives, the present invention provides a multi-station vacuum metal quantitative casting device, comprising:

[0005] A vacuum chamber, the vacuum chamber is used to provide a vacuum environment, a driving assembly and a rotatable casting table are provided in the vacuum chamber, the driving assembly is connected to the casting table to drive the casting table to rotate, and a plurality of molds are provided on the upper end surface of the casting table at intervals along the rotation direction of the casting table;

[0006] A smelting system is provided above the vacuum chamber, the smelting system is used to melt metal and provide molten metal, and the bottom of the smelting system has a casting pipe extending into the vacuum chamber and located directly above the rotation trajectory of the mold;

[0007] a control valve, provided in the smelting system, for controlling the flow of the casting pipe; and

[0008] The control system is connected to the control valve and the drive assembly respectively.

[0009] In some embodiments of the present application, the vacuum chamber includes a vacuum box and sealing plates provided at the upper and lower ends of the vacuum box, and the vacuum box has a vacuum interface for connecting to a vacuum pump.

[0010] In some embodiments of the present application, a first window is provided on the side wall of the vacuum box at a position corresponding to the casting tube and can be opened and closed.

[0011] In some embodiments of the present application, the driving assembly includes a rotating motor disposed in the vacuum chamber and connected to the control system, and the rotating motor is connected to the casting table.

[0012] In some embodiments of the present application, the smelting system includes a smelting box and a cover covering an upper end of the smelting box, wherein the smelting box is disposed on an upper end surface of the vacuum chamber, a smelting pot for containing molten metal is disposed within the smelting box, and the casting pipe is connected to a bottom of the smelting pot;

[0013] The smelting system further includes a heating component disposed in the smelting box and a thermocouple disposed at the bottom of the smelting box for detecting the temperature of the molten metal in the smelting pot. The heating component and the thermocouple are both connected to the control system.

[0014] In some embodiments of the present application, the heating component is a heating coil that surrounds the smelting pot and is arranged in contact with the outer wall of the smelting pot. The heating coil is connected to a heating power supply, and the heating power supply is connected to the control system.

[0015] In some embodiments of the present application, supporting frames are provided on both axial sides of the cover body, and the upper end surface of the vacuum chamber is provided with a cover-opening cylinder corresponding to the supporting frames. The upper end of the cover-opening cylinder has a second telescopic part extending upward and correspondingly connected to the supporting frames.

[0016] In some embodiments of the present application, a second window is provided on the cover body that can be opened and closed.

[0017] Compared with the prior art, the multi-station vacuum metal quantitative casting equipment of the embodiment of the present invention has the following beneficial effects: the present solution sets up a vacuum chamber and creates a casting environment with a certain vacuum degree, so that the molten metal is completed in an environment with a certain vacuum degree during the casting process, effectively reducing the influence of gas and impurities on the molten metal; at the same time, the present solution sets up multiple casting molds in the vacuum chamber and controls the rotation of the casting table at intervals, so that multiple molds can be cast in turn. Under the multi-station design, different stations can perform different processes, so that the casting, cooling and other processes of the molten metal can be carried out simultaneously in the vacuum chamber, thereby improving the overall production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the internal structure of the vacuum chamber of the utility model;

[0019] Figure 2 This is a schematic diagram of the installation relationship between the vacuum chamber and the melting chamber of the utility model;

[0020] Figure 3 This is a schematic diagram of the structure of the smelting chamber of the utility model;

[0021] Figure 4 This is a schematic structural diagram of the vacuum chamber and melting chamber of the utility model from another perspective;

[0022] Figure 5 This is a schematic diagram of the internal structure of the smelting chamber of the utility model;

[0023] Figure 6 This is a schematic diagram of the connection relationship between the control rod and the lifting cylinder of the utility model.

[0024] In the figure, 1, vacuum chamber; 11, casting table; 12, mold; 13, vacuum box; 14, vacuum interface; 15, rotating motor; 16, first window; 17, sealing plate;

[0025] 2. Melting system; 21. Melting box; 22. Cover; 221. Carrier; 222. Second viewing window; 23. Melting pot; 24. Heating assembly; 25. Cover opening cylinder; 26. Second telescopic section; 27. Casting tube;

[0026] 3. Control valve; 31. Control rod; 32. Control cone;

[0027] 4. Lifting assembly; 41. Lifting cylinder; 411. First telescopic portion; 42. Fixed seat; 43. Column; 44. Mounting seat;

[0028] 5. Protective cover; 6. Thermocouple. DETAILED DESCRIPTION

[0029] The following embodiments are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0030] In the description of the present invention, it should be understood that the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. It should be understood that the terms "first", "second", etc. are used in the present invention to describe various information, but such information should not be limited to these terms. These terms are only used to distinguish information of the same type from each other. For example, without departing from the scope of the present invention, "first" information may also be referred to as "second" information, and similarly, "second" information may also be referred to as "first" information.

[0031] like Figures 1-6As shown, the embodiment of the present application proposes a multi-station vacuum metal quantitative casting equipment, including a vacuum chamber 1, which is used to provide a vacuum environment (creating a vacuum environment can effectively reduce the interference of gases and impurities, and improve the quality and performance of castings), a rotatable casting table 11 is provided in the vacuum chamber 1, and the casting table 11 is connected to a drive assembly, and the upper end surface of the casting table 11 is provided with a plurality of molds 12 at intervals along the rotation direction of the casting table 11 (the molds 12 can be provided with different specifications according to actual production requirements); a smelting system 2 is provided above the vacuum chamber 1, and the smelting system 2 is used to smelt metal. A casting pipe 27 is provided at the bottom of the smelting system 2, which extends into the vacuum chamber 1 and is located directly above the rotation trajectory of the mold 12, and a control valve 3 is provided in the smelting system 2 for controlling the flow of the casting pipe 27; and a control system is connected to the control valve 3 and the drive assembly respectively, and controls the control valve 3 and the drive assembly to work together to achieve casting of the mold 12 at intervals.

[0032] During specific implementation, the control system controls the opening size of the control valve 3 and then controls the flow rate of the casting pipe 27, so as to realize accurate casting of a preset amount of molten metal into the mold 12 through the casting pipe 27. After completing the casting of one mold 12, the control system controls the control valve 3 to close and synchronously controls the drive component to drive the casting table 11 to rotate a certain angle, so that the other mold 12 to be cast moves to the position directly below the casting pipe 27. Then the control system controls the control valve 3 to open and casts the molten metal into the mold 12 according to the preset flow rate. Repeating the above process can realize the casting of multiple molds 12 at intervals, so that the mold 12 that has completed the casting first can be cooled in the vacuum chamber 1 and the casting of the subsequent mold 12 can be carried out at the same time. Under the multi-station design of this scheme, different stations can perform different processes, so that the casting, cooling and other processes of molten metal can be carried out simultaneously in the vacuum chamber 1, thereby improving the overall production efficiency.

[0033] In some embodiments of the present application, Figure 1 As shown, the vacuum chamber 1 includes a vacuum box 13, and sealing plates 17 are respectively provided at the upper and lower ends of the vacuum box 13. The vacuum box 13 has a vacuum interface 14 and the vacuum interface 14 is used to connect a vacuum pump; the air in the vacuum box 13 is extracted by the vacuum pump to form a low-pressure vacuum environment to a certain extent, which is used to reduce the interference of gas and impurities, effectively reduce the generation of defects such as pores and impurities inside the casting, and improve the quality of the casting.

[0034] In some embodiments of the present application, Figure 1 As shown, the driving assembly includes a rotating motor 15 arranged in the vacuum chamber 1 and connected to the control system. The control system controls the rotating motor 15 to rotate at intervals to move different molds 12 to be cast to a position directly below the casting tube 27 and complete the casting of the molten metal.

[0035] In some embodiments of the present application, a first window 16 that can be opened and closed is provided at a position corresponding to the side wall of the vacuum box 13 and the casting tube 27. One end of the first window 16 is mounted on the vacuum box 13 via a hinge, and the other end is equipped with a fixed handle for fixing the first window 16 on the vacuum box 13. The provision of the first window 16 facilitates the staff to observe the casting process and helps the staff to better understand the real-time status of the casting process.

[0036] In some embodiments of the present application, the smelting system 2 includes a smelting chamber provided on the upper end surface of the vacuum box 13, the smelting chamber including a smelting box 21 and a cover 22 covering the upper end of the smelting box 21, a smelting pot 23 (a crucible) is provided in the smelting box 21, and the casting pipe 2 is connected to the bottom of the smelting pot 23; and further includes a heating component 24 provided in the smelting box 21 and connected to the control system (a heating coil surrounding the smelting pot 23 and attached to the outer wall of the smelting pot 23, the heating coil is connected to a medium frequency heating power supply, and the medium frequency heating power supply is used to provide an alternating current to the heating coil, thereby generating an alternating current. a thermocouple 6 disposed in the smelting box 21 and configured to detect the temperature of the molten metal in the smelting pot 23; and a control system that controls the power of the heating assembly 24 based on the molten metal temperature measured by the thermocouple 6 to maintain the molten metal temperature in the smelting pot 23 within an appropriate range. This avoids problems such as increased metal oxidation and excessive fluidity resulting in pores or shrinkage cavities caused by excessively high molten metal temperature, as well as insufficient metal fluidity resulting in reduced casting integrity and density caused by excessively low molten metal temperature.

[0037] In some embodiments of the present application, Figure 5 、 Figure 6As shown, the control valve 3 includes a control rod 31 disposed in the smelting chamber and movable vertically. The vertical projection of the control rod 31 corresponds to the casting pipe 27, and the bottom of the control rod 31 is coaxially connected to a control cone 32 whose outer diameter gradually decreases from top to bottom (the control cone 32 has a large diameter end away from the casting pipe 27 and a small diameter end close to the casting pipe, and the inner diameter of the connection between the casting pipe 27 and the smelting pot 23 is between the large diameter end and the small diameter end). The control cone 32 is at least partially inserted into the casting pipe 27; the upper end of the control rod 31 extends upward from the cover body 22, and one end extending therefrom is connected to the lifting assembly 4 (a seal that cooperates with the control rod 31 is provided at the portion of the cover body 22 through which the control rod 31 passes). The lifting assembly 4 is connected to the control system. During casting, according to the casting requirements, the control system controls the movement of the lifting assembly 4 and drives the control rod 31 to rise or fall vertically, thereby adjusting the depth of the control cone 32 inserted into the casting tube 27, and finally adjusting the conductive cross-section of the casting tube 27 and the smelting pot 23 to achieve the effect of adjusting the flow rate of the casting tube 27 (so that the molten metal is cast according to the preset flow rate); when the casting of a mold 12 is completed, the control system drives the control cone 32 to be inserted into the casting tube 27 to the set deepest point through the lifting assembly 4 to achieve the blocking of the casting tube 27.

[0038] In some embodiments of the present application, the lifting assembly 4 includes a lifting cylinder 41 (connected to an air pump or other air source) disposed above the cover body 22 and connected to the control system. The lifting cylinder 41 has a first telescopic portion 411 extending downward and connected to the upper end of the control rod 31. The control system controls the movement of the lifting cylinder 41 and drives the control rod 31 to move vertically through the first telescopic portion 411.

[0039] In some embodiments of the present application, a fixing seat 42 is provided on the cover body 22 and a plurality of columns 43 are provided at intervals on the upper end of the fixing seat 42. The upper ends of the plurality of columns 43 are commonly connected to a horizontally arranged mounting seat 44, and the lifting cylinder 41 is installed on the mounting seat 44. A protective cover 5 can be provided on the outer side of the lifting cylinder 41 so that the mounting seat 44 and the columns 43 are both covered in the protective cover 5. The bottom of the protective cover 5 is fixedly installed with the fixing seat 42, thereby improving the aesthetics of the equipment.

[0040] In some embodiments of the present application, Figure 5 As shown, support frames 221 are provided on both axial sides of the cover body 22, and a cover-opening cylinder 25 (connected to an air pump or other air source) corresponding to the support frames 221 is provided on the upper end surface of the vacuum chamber 1. The upper end of the cover-opening cylinder 25 has a second telescopic portion 26 extending upward and correspondingly connected to the support frames 221. The cover-opening cylinder 25 is controlled to operate and the second telescopic portion 26 is used to drive the cover body 22 to cover the smelting box 21 or move away from the smelting box 21, so as to open the smelting chamber (add metal to be smelted into the smelting box 21) or close it (start the smelting process).

[0041] In some embodiments of the present application, a second window 222 is provided on the cover body 22 that can be opened and closed. One side of the second window 222 is mounted on the cover body 22 via a hinge, and the other side is provided with a fixed handle for mounting the second window 222 on the cover body 22 to facilitate staff to observe the situation in the smelting chamber.

[0042] The working process of the present invention is as follows: the control device is started, and the control system adjusts the flow rate of the control valve 3 to realize the casting of the molten metal at a preset flow rate; when the casting of one of the molds 12 is completed, the control valve 3 is closed and the casting table 11 is controlled to rotate a certain angle at the same time, so that the next mold 12 to be cast is moved to a position directly below the casting pipe 27. At this time, the control valve 3 is opened and cast at a preset flow rate, thereby realizing the process of casting multiple molds 12 at intervals. The mold 12 that has completed the casting first can be cooled in the vacuum chamber 1 and carried out simultaneously with the casting of the subsequent mold 12. Multiple workstations can realize different processes at the same time, thereby improving the overall production efficiency.

[0043] In summary, the embodiment of the present invention provides a multi-station vacuum metal quantitative casting equipment. This solution sets up a vacuum chamber 1 and creates a casting environment with a certain vacuum degree, so that the molten metal is completed in a certain vacuum environment during the casting process, effectively reducing the impact of gas and impurities on the molten metal; at the same time, this solution provides multiple casting molds 12 in the vacuum chamber 1 and controls the interval rotation of the casting table 11, so that the multiple molds 12 can be cast in turn. Under the multi-station design, different stations can perform different processes, so that the casting, cooling and other processes of the molten metal can be carried out simultaneously in the vacuum chamber 1, thereby improving the overall production efficiency.

[0044] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and replacements can be made without departing from the technical principles of the present invention. These improvements and replacements should also be regarded as the scope of protection of the present invention.

Claims

1. A multi-station vacuum metal quantitative casting equipment, characterized in that: include: A vacuum chamber, the vacuum chamber is used to provide a vacuum environment, a driving assembly and a rotatable casting table are provided in the vacuum chamber, the driving assembly is connected to the casting table to drive the casting table to rotate, and a plurality of molds are provided on the upper end surface of the casting table at intervals along the rotation direction of the casting table; A smelting system is provided above the vacuum chamber, the smelting system is used to melt metal and provide molten metal, and the bottom of the smelting system has a casting pipe extending into the vacuum chamber and located directly above the rotation trajectory of the mold; a control valve, provided in the smelting system, for controlling the flow of the casting pipe; as well as The control system is connected to the control valve and the drive assembly respectively.

2. The multi-station vacuum metal quantitative casting equipment according to claim 1, characterized in that: The vacuum chamber includes a vacuum box and sealing plates arranged at the upper and lower ends of the vacuum box. The vacuum box has a vacuum interface for connecting to a vacuum pump.

3. The multi-station vacuum metal quantitative casting equipment according to claim 2, characterized in that: A first viewing window is provided on the side wall of the vacuum box at a position corresponding to the casting pipe and can be opened and closed.

4. The multi-station vacuum metal quantitative casting equipment according to claim 2, characterized in that: The driving assembly includes a rotating motor disposed in the vacuum chamber and connected to the control system, and the rotating motor is connected to the casting table.

5. The multi-station vacuum metal quantitative casting equipment according to claim 1, characterized in that: The smelting system includes a smelting box and a cover covering the upper end of the smelting box. The smelting box is arranged on the upper end surface of the vacuum chamber. A smelting pot for accommodating molten metal is provided in the smelting box. The casting pipe is connected to the bottom of the smelting pot. The smelting system further includes a heating component disposed in the smelting box and a thermocouple disposed at the bottom of the smelting box for detecting the temperature of the molten metal in the smelting pot. The heating component and the thermocouple are both connected to the control system.

6. The multi-station vacuum metal quantitative casting equipment according to claim 5, characterized in that: The heating component is a heating coil surrounding the smelting pot and being arranged in contact with the outer peripheral wall of the smelting pot. The heating coil is connected to a heating power supply, and the heating power supply is connected to the control system.

7. The multi-station vacuum metal quantitative casting equipment according to claim 5, characterized in that: The cover body is provided with supporting frames on both axial sides, the upper end surface of the vacuum chamber is provided with a cover opening cylinder corresponding to the supporting frames, and the upper end of the cover opening cylinder has a second telescopic part extending upward and correspondingly connected to the supporting frames.

8. The multi-station vacuum metal quantitative casting equipment according to claim 5, characterized in that: The cover body is provided with a second viewing window which can be opened and closed.

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