阅读说明：本技术 T型真空感应熔炼浇铸炉 (T-shaped vacuum induction melting casting furnace ) 是由 朱兴发 周慧俊 陈睿 朱敏 陈紫瑶 于 2020-07-02 设计创作，主要内容包括：本发明公开了一种T型真空感应熔炼浇铸炉,包括真空熔炼室、设置于所述真空熔炼室内部的熔炼炉和通过管道与所述真空熔炼室连接的真空阀,所述真空熔炼室的顶部设置有移动炉盖,所述真空熔炼室设置有两个出口且在两个出口处分别设置有进模室和出模室,所述T型真空感应熔炼浇铸炉还包括：流槽室,设置于所述真空熔炼室的外部并与其贯通连接用于将所述熔炼炉中的钢水导流到锭模中；侧加料室,设置于所述真空熔炼炉的外部并与其贯通连接用于给所述熔炼炉加料。通过设置的进模室和出模室,大大降低了铸件流转的时间影响和真空度的频繁切换,节约了大量能源消耗,而且可以实现流水化浇铸生产,提高了铸件的浇铸效率。(The invention discloses a T-shaped vacuum induction melting and casting furnace, which comprises a vacuum melting chamber, a melting furnace arranged in the vacuum melting chamber and a vacuum valve connected with the vacuum melting chamber through a pipeline, wherein the top of the vacuum melting chamber is provided with a movable furnace cover, the vacuum melting chamber is provided with two outlets, and the two outlets are respectively provided with a die inlet chamber and a die outlet chamber, and the T-shaped vacuum induction melting and casting furnace also comprises: the runner chamber is arranged outside the vacuum smelting chamber and is communicated with the vacuum smelting chamber to guide the molten steel in the smelting furnace into an ingot mold; and the side feeding chamber is arranged outside the vacuum smelting furnace and is in through connection with the vacuum smelting furnace for feeding the smelting furnace. Through the die inlet chamber and the die outlet chamber, the time influence of casting circulation and frequent switching of vacuum degree are greatly reduced, a large amount of energy consumption is saved, streamlined casting production can be realized, and the casting efficiency of the casting is improved.)

T type vacuum induction melting casting furnace, including vacuum melting chamber (1), set up in the inside smelting furnace (23) of vacuum melting chamber (1) and through the pipeline with vacuum valve (2) that vacuum melting chamber (1) is connected, its characterized in that, the top of vacuum melting chamber (1) is provided with removes bell (3), vacuum melting chamber (1) is provided with two exports and is provided with respectively in two exits and advances die chamber (7) and go out die chamber (8), T type vacuum induction melting casting furnace still includes:

the runner chamber (6) is arranged outside the vacuum smelting chamber (1) and is communicated with the vacuum smelting chamber for guiding the molten steel in the smelting furnace (23) to an ingot mold;

and the side feeding chamber (5) is arranged outside the vacuum smelting chamber (1) and is in through connection with the vacuum smelting chamber for feeding the smelting furnace (23).

2. The T-shaped vacuum induction melting and casting furnace according to claim 1, further comprising a conveying device (11), wherein the conveying device (11) sequentially penetrates through the die inlet chamber (7), the vacuum melting chamber (1) and the die outlet chamber (8), and an ingot mold trolley (12) is arranged on the conveying device (11).

3. The T-shaped vacuum induction melting and casting furnace as claimed in claim 1, wherein an upper feeding chamber (19), an observation window valve (21), a reduction transmission motor (17) and a material transmission device (18) are arranged on the movable furnace cover (3), the observation window valve (21) is positioned on the side edge of the upper feeding chamber (19), the reduction transmission motor (17) is arranged at the end part of the movable furnace cover (3), the material transmission device (18) is positioned on the side edge of the upper feeding chamber (19), and a lifting motor (20) is arranged on the upper part of the upper feeding chamber (19).

4. The T-shaped vacuum induction melting and casting furnace as claimed in claim 3, wherein a sliding base (4) is arranged at the bottom of the movable furnace cover (3), the movable furnace cover (3) is driven by a speed reduction transmission motor (17) and slides along the sliding base (4), and a jacking cylinder (16) is arranged between the bottom of the sliding base (4) and the connection part of the vacuum melting chamber (1).

5. The T-shaped vacuum induction melting and casting furnace as claimed in claim 1, wherein the conveying device (11) penetrates through the whole vacuum melting chamber (1) and the die inlet chamber (7) and the die outlet chamber (8), die chamber vacuum isolation valves (9) are respectively arranged between the connection parts of the die inlet chamber (7) and the die outlet chamber (8) and the vacuum melting chamber (1), the top and two sides of each die chamber vacuum isolation valve (9) are respectively provided with a door moving device (10) and a locking cylinder (13), and the door moving devices (10) are connected with door cores inside the die chamber vacuum isolation valves (9).

6. The T-shaped vacuum induction melting and casting furnace as claimed in claim 1, wherein the vacuum valve (2) is further connected with the mold inlet chamber (7), the mold outlet chamber (8) and the side charging chamber (5) through pipelines, the top of the mold inlet chamber (7) and the top of the mold outlet chamber (8) are respectively provided with a door moving device (10), the side of the mold inlet chamber (7) and the side of the mold outlet chamber (8) are respectively provided with a locking cylinder (13), the door moving device (10) is respectively connected with the sealing doors of the mold inlet chamber (7) and the mold outlet chamber (8), and the locking cylinders (13) are respectively positioned on two sides of the mold inlet chamber (7) and the mold outlet chamber (8).

7. The T-type vacuum induction melting and casting furnace as claimed in claim 1, wherein lateral vacuum isolation valves (14) are provided between the connection points of the launder chamber (6) and side feed chamber (5) to the vacuum melting chamber (1), respectively.

8. The T-shaped vacuum induction melting and casting furnace as claimed in claim 1, wherein a furnace frame (24), a forward tilting cylinder (25) and a backward tilting cylinder (26) are arranged inside the vacuum melting chamber (1), the lower end of the furnace frame (24) is hinged with the vacuum melting chamber (1), two ends of the forward tilting cylinder (25) are respectively hinged with the furnace frame (24), one end of the backward tilting cylinder (26) is hinged with the vacuum melting chamber (1), and the other end is hinged with the furnace frame (24).

9. The T-shaped vacuum induction melting and casting furnace according to claim 1, characterized in that a diversion trench (601) is arranged inside the runner chamber (6), a transmission motor (22) is arranged outside the runner chamber, and the transmission motor (22) is connected with the diversion trench (601) through a chain; the inside of side feed chamber (5) is provided with electromagnetism vibrations charging means (501), the outside is provided with driving motor (22), driving motor (22) through the chain with electromagnetism vibrations charging means (501) are connected.

10. The T-shaped vacuum induction melting and casting furnace according to claim 1, characterized in that the side of the vacuum melting furnace (23) is provided with an observation window (15) for facilitating observation of the conditions inside the vacuum melting chamber (1).

Technical Field

The invention relates to the technical field of metal vacuum melting and casting, in particular to a T-shaped vacuum induction melting and casting furnace.

Background

Vacuum induction melting is a method for heating furnace burden by generating eddy current in a metal conductor by utilizing electromagnetic induction under the vacuum condition, and the metal is melted and then cast; the cast ingot of the existing vacuum induction melting and casting furnace generally enters and exits in a one-way mode, namely the cast ingot enters a vacuum chamber for vacuumizing and then enters a melting and casting furnace, then molten steel is cast into the cast ingot, and the cast ingot is sent out through an original outlet, so that a plurality of uncontrollable factors can be generated in the middle of the process, the cast product is not qualified, and the casting efficiency is low.

The unidirectional inlet and outlet of the cast ingot into and out of the vacuum melting and casting furnace can cause the cavity in the furnace to be broken, the vacuum environment in the vacuum melting and casting furnace is broken, the quality of molten steel in the furnace can be influenced by the change of the vacuum environment, and therefore the casting quality of the cast ingot is influenced.

Disclosure of Invention

The invention aims to solve the problems and designs a T-shaped vacuum induction melting casting furnace.

The technical scheme of the invention is that the T-shaped vacuum induction melting and casting furnace comprises a vacuum melting chamber, a melting furnace arranged in the vacuum melting chamber and a vacuum valve connected with the vacuum melting chamber through a pipeline, wherein a movable furnace cover is arranged at the top of the vacuum melting chamber, the vacuum melting chamber is provided with two outlets, a die inlet chamber and a die outlet chamber are respectively arranged at the two outlets, and the T-shaped vacuum induction melting and casting furnace further comprises:

the runner chamber is arranged outside the vacuum smelting chamber and is communicated with the vacuum smelting chamber to guide the molten steel in the smelting furnace into an ingot mold;

and the side feeding chamber is arranged outside the vacuum smelting chamber and is communicated with the vacuum smelting chamber to feed the smelting furnace.

As a further explanation of the invention, the T-shaped vacuum induction melting and casting furnace further comprises a conveying device, the conveying device sequentially penetrates through the die inlet chamber, the vacuum melting chamber and the die outlet chamber, and an ingot die trolley is arranged on the conveying device.

As a further explanation of the present invention, the movable furnace cover is provided with an upper feeding chamber, an observation window valve, a reduction drive motor and a material conveying device, the observation window valve is located at the side edge of the upper feeding chamber, the reduction drive motor is installed at the end part of the movable furnace cover, the material conveying device is located at the side edge of the upper feeding chamber, and the upper part of the upper feeding chamber is provided with a lifting motor.

As a further explanation of the invention, a sliding base is arranged at the bottom of the movable furnace cover, the movable furnace cover is driven by a speed reduction transmission motor and slides along the sliding base, and a jacking oil cylinder is arranged between the bottom of the sliding base and the connecting part of the vacuum smelting chamber.

As a further explanation of the invention, the conveying device penetrates through the whole vacuum melting chamber and the die inlet chamber and the die outlet chamber, die chamber vacuum isolation valves are respectively arranged between the connection parts of the die inlet chamber and the die outlet chamber with the vacuum melting chamber, the top and two sides of the die chamber vacuum isolation valves are respectively provided with a door moving device and a locking cylinder, and the door moving device is connected with a door core inside the die chamber vacuum isolation valves.

As a further explanation of the present invention, the vacuum valve is further connected to the mold feeding chamber, the mold discharging chamber and the side feeding chamber through pipes, the top of the mold feeding chamber and the top of the mold discharging chamber are respectively provided with a door moving device, the side surfaces of the mold feeding chamber and the mold discharging chamber are respectively provided with a locking cylinder, the door moving devices are respectively connected to the sealing doors of the mold feeding chamber and the mold discharging chamber, and the locking cylinders are respectively located at two sides of the mold feeding chamber and the mold discharging chamber.

As a further explanation of the invention, transverse vacuum isolation valves are respectively arranged between the connection parts of the runner chamber, the side feeding chamber and the vacuum melting chamber.

As a further explanation of the invention, a furnace frame, a forward-inclined oil cylinder and a backward-inclined oil cylinder are arranged in the vacuum melting chamber, the lower end of the furnace frame is hinged with the vacuum melting chamber, two ends of the forward-inclined oil cylinder are respectively hinged with the furnace frame, one end of the backward-inclined oil cylinder is hinged with the vacuum melting chamber, and the other end is hinged with the furnace frame.

As a further explanation of the invention, a diversion trench is arranged inside the runner chamber, and a transmission motor is arranged outside the runner chamber and connected with the diversion trench through a chain; the inside of side feeding chamber is provided with electromagnetic vibration charging means, the outside is provided with driving motor, driving motor pass through the chain with electromagnetic vibration charging means connects.

As a further explanation of the present invention, the side surface of the vacuum melting furnace is provided with an observation window for facilitating observation of the condition inside the vacuum melting chamber.

The method has the advantages that 1, a casting piece enters a die inlet chamber, is vacuumized and then enters a vacuum melting chamber, enters a vacuumized die outlet chamber after casting is finished, is buffered and then exits the die outlet chamber, different cavities are formed by switching vacuum valves, different vacuum grades are realized, and the retention time and the state of a product are determined; all the positions are in a vacuum state, the vacuum casting is carried out when the casting enters the casting after being baked, and the time point selection of the subsequently entering casting is very accurate due to the fact that the casting enters the casting after being baked, the time influence of the casting circulation and the frequent switching of the vacuum degree are greatly reduced, and a large amount of energy consumption is saved;

2. materials can be added into the smelting furnace at different time periods through the arranged side feeding chambers, the side feeding chambers can be independently vacuumized, the vacuum level in the vacuum smelting chamber is guaranteed to be unchanged, the vacuum smelting chamber cannot be broken empty, the casting quality is not affected, the two-way inlet and outlet of the die inlet chamber and the die outlet chamber are equivalent to a production line, the component consistency of a whole batch of products can be guaranteed, a plurality of castings corresponding to the same smelting furnace are possible, the molten steel source of the whole batch of castings is the same furnace number, and the quality control can be more accurate;

3. the production preparation time is greatly shortened, if the simultaneous feeding from the mold inlet chamber and the mold outlet chamber at two sides of the vacuum smelting furnace is selected, no matter a casting or an ingot mold, the two sides can be simultaneously selected, so that the required production preparation is simultaneously completed, and the influence of production rhythm brought by scheduling, production preparation, production tools and the like is conveniently coped with.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic plan view of the present invention;

FIG. 3 is a schematic view of the vacuum melting chamber and moving roof construction of the present invention;

FIG. 4 is a schematic view of the construction of a side feed chamber according to the present invention;

fig. 5 is a schematic view of the structure of the launder chamber according to the invention;

fig. 6 is a schematic view of the structure of the melting furnace according to the present invention.

In the figure, 1, a vacuum melting chamber; 2. a vacuum valve; 3. moving the furnace cover; 4. a sliding base; 5. a side feed chamber; 501. an electromagnetic vibration feeder; 6. a launder chamber; 601. a diversion trench; 7. feeding into a die chamber; 8. a mold discharging chamber; 9. a mold chamber vacuum isolation valve; 10. a door moving device; 11. a conveying device; 12. ingot mould turning; 13. a locking cylinder; 14. a lateral vacuum isolation valve; 15. an observation window; 16. a jacking oil cylinder; 17. a reduction drive motor; 18. a material conveying device; 19. an upper charging chamber; 20. a lifting motor; 21. an observation window valve; 22. a drive motor; 23. a smelting furnace; 24. A furnace frame; 25. a forward tilting oil cylinder; 26. a backward tilting oil cylinder.

Detailed Description

The invention is described in detail below with reference to the accompanying drawings, and as shown in fig. 1 to 6, the T-shaped vacuum induction melting and casting furnace mainly comprises the following structures: the vacuum melting chamber 1 is internally provided with metal melting and casting operations; a melting furnace 23 installed inside the vacuum melting chamber 1 for melting metal; the vacuum valves 2 are four in total, are respectively arranged outside the vacuum melting chamber 1 and are connected with the vacuum melting chamber 1 through pipelines, and different vacuum levels can be realized by switching the insides of the vacuum melting chambers 1 in different forms; a movable furnace cover 3 installed at the top of the vacuum melting chamber 1, and the interior of the vacuum melting furnace 23 can be overhauled and parts can be replaced by opening the movable furnace cover 3; the die inlet chamber 7 and the die outlet chamber 8 are respectively arranged at two sides of the vacuum melting chamber 1 and play a role in buffering; the conveying device 11 penetrates through the whole vacuum melting chamber 1, the mold inlet chamber 7 and the mold outlet chamber 8 and is mainly used for driving an ingot mold trolley 12 arranged on the conveying device, and an ingot mold is filled on the ingot mold trolley 12; a runner chamber 6 which is connected to the vacuum melting chamber 1 and is used for introducing molten steel in the melting furnace 23 into the ingot mold; the side feeding chamber 5 is also communicated with the vacuum melting chamber 1, so that feeding to the melting furnace 23 at different time periods is facilitated, and the vacuum environment in the vacuum melting chamber 1 is not influenced.

The following detailed description is made on the components, wherein two of the four vacuum valves 2 are medium-high pressure vacuum valves 2, the other two are high pressure vacuum valves 2, the vacuum valves are connected with the vacuum melting chamber 1 through pipelines, the vacuum level inside the vacuum melting chamber 1 is adjusted through different forms of switching, and the vacuum valves are respectively connected with the mold inlet chamber 7, the mold outlet chamber 8 and the side feeding chamber 5 through pipelines to vacuumize the mold; the smelting furnace 23 must be dumped when the ingot mould is cast, in order to pour the molten steel by the smelting furnace 23, the smelting furnace 23 must be ensured to be stably fixed, a furnace frame 24, a forward tilting oil cylinder 25 and a backward tilting oil cylinder 26 are arranged in the vacuum melting chamber 1, the lower end of the furnace frame 24 is hinged with the vacuum melting chamber 1, a melting furnace 23 is erected and fixed on the furnace frame 24, here, there are two forward tilting cylinders 25 and two backward tilting cylinders 26, the two backward tilting cylinders 26 are respectively located at both sides of the melting furnace 23, two ends of the furnace frame are respectively hinged with the furnace frame 24, two backward tilting oil cylinders 26 are respectively arranged at two sides of the furnace frame 24, one end of the vacuum melting chamber 1 is hinged and connected with the vacuum melting chamber, the other end is hinged and connected with the furnace frame 24, when an ingot mould needs to be cast, the backward tilting oil cylinder 26 lifts the height of the melting furnace 23, then the angle of the smelting furnace 23 is adjusted through a forward tilting oil cylinder 25 to realize the tilting operation of the molten steel; an observation window 15 is arranged on the side surface of the vacuum melting chamber 1, so that a worker can conveniently observe the internal condition of the vacuum melting chamber 1 through the observation window 15.

The movable furnace cover 3 is used for sealing the vacuum melting chamber 1, and the movable furnace cover 3 can be opened to overhaul the interior of the vacuum melting chamber 1 when needed; an upper feeding chamber 19 is arranged at the upper part of the movable furnace cover 3 and is positioned at the central position of the movable furnace cover 3, a material conveying device 18 is arranged beside the upper feeding chamber 19, a lifting motor 20 is arranged at the top part of the upper feeding chamber 19, when the material is required to be fed, the door of the upper feeding chamber 19 is opened, the material is placed on the material conveying device 18, the material conveying device 18 rotates to convey the material into the upper feeding chamber 19 and is fixed on a lifting rope of the lifting motor 20, then the lifting motor 20 slowly descends the material, and the material is put into a smelting furnace 23; an observation window valve 21 is also arranged at the upper part of the movable furnace cover 3, so that the pressure in the vacuum smelting chamber 1 can be balanced, and the condition in the smelting furnace 23 can be observed through the observation window valve; in order to facilitate the movement of the movable furnace cover 3, a sliding base 4 is arranged at the bottom of the movable furnace cover 3, one end of the sliding base 4 is supported and fixed, the other end of the sliding base 4 is hinged with the vacuum melting chamber 1 through a jacking oil cylinder 16, two speed reduction transmission motors 17 are arranged at the upper part of the movable furnace cover 3, the movable furnace cover 3 is driven to move along the sliding base 4 through the speed reduction transmission motors 17, and the jacking oil cylinder 16 is used for adjusting the levelness of the movable furnace cover 3 and enhancing the sealing performance of the movable furnace cover 3 and the vacuum melting chamber 1.

A lower runner chamber 6 and a side charging chamber 5 are described, a transverse vacuum isolation valve 14 is arranged between the connection part of the runner chamber 6 and the vacuum melting chamber 1 and is used for isolating the environment inside the runner chamber 6 from the environment inside the vacuum melting chamber 1, a door moving device 10 is arranged outside the transverse vacuum isolation valve 14 and is connected with the door core inside the transverse vacuum isolation valve 14, the door core of the transverse vacuum isolation valve 14 is driven to transversely move through the door moving device, and when the door core of the transverse vacuum isolation valve 14 moves to a designated position, the transverse vacuum isolation valve 14 automatically locks the door core in order to facilitate the opening and closing of the door core inside the transverse vacuum isolation valve 14; the inside of the runner chamber 6 is provided with a diversion trench 601, the outside is provided with a transmission motor 22, the transmission motor 22 is connected with the diversion trench 601 through a chain, the chain can realize rigid transmission, when casting is needed, the transmission motor 22 pushes the diversion trench 601 to a corresponding position in the vacuum smelting chamber 1 through the chain, then the smelting furnace 23 pours molten steel into the diversion trench 601, the end part of the diversion trench 601 is provided with a water outlet, and the molten steel flows into a corresponding ingot mold at the bottom of the diversion trench 601 along the water outlet.

A transverse vacuum isolation valve 14 is also arranged at the connecting part of the side feeding chamber 5 and the vacuum melting chamber 1, and the principle and the structure of the transverse vacuum isolation valve 14 of the runner chamber 6 are the same; an electromagnetic vibration feeder 501 is arranged in the side feeding chamber 5, a transmission motor 22 is also arranged outside the side feeding chamber, the structure and the principle of the electromagnetic vibration feeder are the same as those of the launder chamber 6, the electromagnetic vibration feeder 501 is pushed above the smelting furnace 23 in the vacuum smelting chamber 1, and then materials are shaken into the smelting furnace 23 through high-frequency vibration and are applied to feeding the smelting furnace 23 at different time periods; during actual operation, put the material into electromagnetic vibration charging means 501 in advance earlier, then with the side charging chamber 5 evacuation after the sealing, door mobile device 10 opens the door core of horizontal vacuum isolation valve 14 when needing to feed in, drive motor 22 passes through the rigid drive of chain, with the top of electromagnetic vibration charging means 501 propelling movement to smelting furnace 23, then in shaking the smelting furnace 23 with the material through high-frequency vibration, can not cause the threat of breaking empty to vacuum melting chamber 1.

Compared with the prior art, the T-shaped vacuum melting casting furnace provided by the invention can realize real streamlined casting and ensure the consistency of the components of the whole batch of products; the vacuum melting chamber 1 is provided with two outlets, a mold inlet chamber 7 and a mold outlet chamber 8 are respectively arranged at the positions of the two outlets and are in butt joint with the two outlets, and mold chamber vacuum isolation valves 9 are respectively arranged at the connecting parts of the mold inlet chamber 7 and the mold outlet chamber 8 and the vacuum melting chamber 1 and are used for isolating the space environment of the mold inlet chamber 7 and the mold outlet chamber 8 from the space environment of the vacuum melting chamber 1; the upper parts of the mold inlet chamber 7 and the mold outlet chamber 8 are respectively provided with a door moving device 10, the door moving devices 10 are respectively connected with the sealing doors of the mold inlet chamber 7 and the mold outlet chamber 8, the opening and closing of the sealing doors of the mold chambers are controlled in a sliding mode, and meanwhile, two locking cylinders 13 are respectively arranged on two sides of the mold inlet chamber 7 and the mold outlet chamber 8 and used for locking the closed sealing doors tightly, so that the space environment in the mold inlet chamber 7 and the mold outlet chamber 8 is isolated from the external connection; the device comprises a conveying device 11 which is communicated with the whole vacuum melting chamber 1, a mold inlet chamber 7, a mold outlet chamber 8 and the external environment, an ingot mold cart 12 arranged on the conveying device 11 slows down an ingot mold, the interior of the vacuum melting chamber 1 is in a vacuum state at first, the space environment of the mold inlet chamber 7 and the space environment of the mold outlet chamber 8 are isolated from the space environment of the vacuum melting chamber 1 through a mold chamber vacuum isolation valve 9, when casting is needed, the ingot mold cart 12 enters the mold inlet chamber 7 through the conveying device 11, then a door moving device 10 controls a sealing door of the mold inlet chamber 7 to be closed, a locking cylinder 13 tightly locks the sealing door, a vacuum valve 2 starts to vacuumize the mold inlet chamber 7, then the door moving device 10 controls the mold chamber vacuum isolation valve 9 to be opened, the conveying device 11 conveys the ingot mold cart 12 to a position to be cast in the vacuum melting chamber 1, and simultaneously the mold chamber vacuum isolation valve 9 of the mold inlet chamber 7 is closed, repeating the operation, vacuumizing the mold discharging chamber 8 to be in a vacuum state, opening a mold chamber vacuum isolation valve 9 between the mold discharging chamber 8 and the vacuum melting chamber 1 after the casting is finished, conveying the ingot mold car 12 to the mold discharging chamber 8 by the conveying device 11, then closing the mold chamber vacuum isolation valve 9, simultaneously opening a door core of the mold chamber vacuum isolation valve 9 of the mold feeding chamber 7 to convey a new ingot mold car 12 to a position to be cast, and repeating the operation; after decompression, the sealing door of the mold discharging chamber 8 is opened, the ingot mold vehicle 12 is conveyed to the outside, then the door moving device 10 controls the sealing door to be closed, the locking cylinder 13 tightly locks the sealing door, the vacuum valve 2 vacuumizes the mold discharging chamber 8, and the operation is repeated, so that the streamlined casting can be realized, the vacuum grade in the vacuum smelting furnace 23 is well controlled, the phenomenon of air breaking is avoided, the smelting and casting efficiency is effectively improved, and the production preparation time is greatly shortened.

The working principle is as follows: the movable furnace cover 3 is pushed to slide along the sliding base 4 by the speed reduction drive motor 17, the movable furnace cover 3 is opened, then a large material is put into the smelting furnace 23 by the hoisting equipment, then the speed reduction drive motor 17 controls the movable furnace cover 3 to return to the original position, the sliding base 4 is pulled down by the jacking oil cylinder 16 at the bottom of the sliding base 4, so that the movable furnace cover 3 is sealed more tightly, then a small material is put on the material conveying device 18 at the upper part of the movable furnace cover 3, the door of the upper feeding chamber 19 is opened, the small material is conveyed into the upper feeding chamber 19 by the material conveying device 18 and is butted with a lifting rope of the lifting motor 20 at the top of the upper feeding chamber 19, the lifting motor 20 hoists the material to the upper part of the smelting furnace 23 and then puts into the smelting furnace 23, meanwhile, some feeding materials in the middle of the smelting process are successively put into the electromagnetic vibration feeder 501 in the, then the door cores in the mold chamber vacuum isolation valves 9 of the mold inlet chamber 7 and the mold outlet chamber 8 are closed through the door moving device 10, the door cores of the transverse vacuum isolation valves 14 of the side feeding chamber 5 are closed through the door moving device 10, the mold inlet chamber 7, the mold outlet chamber 8 and the side feeding chamber 5 are isolated from the vacuum melting chamber 1, the sealing door of the mold outlet chamber 8 is closed, then the vacuum valves 2 respectively vacuumize the vacuum melting chamber 1, the mold outlet chamber 8 and the side feeding chamber 5, the observation window valve 21 at the top of the furnace cover 3 is moved for balancing vacuum pressure, the melting furnace 23 starts to melt the materials in the furnace, when the materials need to be added in the middle of melting, the door cores of the transverse vacuum isolation valves 14 of the side feeding chamber 5 are opened, the transmission motor 22 pushes the electromagnetic vibration feeder 501 to a designated position through the rigid transmission capacity of a chain, the electromagnetic feeder 501 shakes the materials into the melting furnace 23 through high-speed vibration, when casting is needed after smelting is finished, firstly, an ingot mold trolley 12 filled with an ingot mold is conveyed to a mold inlet chamber 7 through a conveying device 11, then a sealing door of the mold inlet chamber 7 transversely moves through a door moving device 10 to seal the mold inlet chamber 7, meanwhile, a locking cylinder 13 tightly locks the sealing door, then a vacuum valve 2 starts to vacuumize the mold inlet chamber 7, then a door core of a mold chamber vacuum isolation valve 9 is opened, after the ingot mold trolley 12 is conveyed to a designated position by the conveying device 11, a mold chamber vacuum isolation valve 9 is closed, the previous operation is repeated, the mold inlet chamber 7 enters a new ingot mold trolley 12, a transmission motor 22 arranged outside a launder chamber 6 pushes a diversion groove 601 to a designated position through the rigid transmission capacity of a chain, then an elevating oil cylinder 16 at the bottom of a smelting furnace 23 adjusts the angle of the smelting furnace 23, so that molten steel in the smelting furnace 23 is poured into the diversion groove 601, and the molten steel is guided into the ingot mold through the diversion groove 601, and (3) casting the rest ingot moulds in sequence, opening the door core of a mould chamber vacuum isolation valve 9 of the mould outlet chamber 8 after casting, conveying the ingot mould car 12 to the mould outlet chamber 8 through a conveying device 11, starting to close the door core of the mould chamber vacuum isolation valve 9, opening the door core of the mould chamber vacuum isolation valve 9 of the mould inlet chamber 7, repeating the operation, decompressing the mould outlet chamber 8, opening a sealing door of the mould outlet chamber, conveying the ingot mould car 12 to the outside, closing the sealing door, vacuumizing the mould outlet chamber 8, repeating the operation, and performing streamlined operation one by one step.

The technical solutions described above only represent the preferred technical solutions of the present invention, and some possible modifications to some parts of the technical solutions will all represent the principles of the present invention, and fall within the protection scope of the present invention.