CN215033444U - Three-cavity type multi-runner vacuum hot mold continuous casting system - Google Patents

Abstract

The utility model relates to a three-cavity multi-runner vacuum hot mold continuous casting system, which comprises a feeding unit, a heating and melting unit, a continuous casting and forming unit, a heat energy generating unit, a vacuumizing unit and a protective gas generating unit; inputting a metal ingot to be melted into a feeding unit, pouring the metal ingot to be melted into a heating and melting unit by the feeding unit, melting the metal ingot to be melted through the heat energy output of a heat energy generating unit to form molten metal, then sending the molten metal into a continuous casting forming unit, and directly and continuously extruding and forming a metal wire by the continuous casting forming unit; the feeding unit, the heating and melting unit and the continuous casting forming unit utilize the vacuumizing unit to evacuate internal air in the operation process, and the protective atmosphere is input by the protective gas generating unit, so that the interiors of the feeding unit, the heating and melting unit and the continuous casting forming unit are kept in an oxygen-free state, and the quality of formed metal wires is ensured.

Description

Three-cavity type multi-runner vacuum hot mold continuous casting system

Technical Field

The utility model relates to a three-cavity type multithread way vacuum hot mold continuous casting system especially indicates a fashioned wire rod can be applicable to the three-cavity type multithread way vacuum hot mold continuous casting system of the occasion of high-strength plating, high conductivity, resistant tortuous, fatigue resistance.

Background

Copper wire is currently the most widely used signal transmission material, for example: cables for power transmission, wires for electronic instruments or products, and even control wires for sophisticated medical devices or specialized instruments. The traditional method for producing the copper wire is to put copper and secondary raw materials into a smelting furnace for melting, and smelt to form a metal ingot, and stretch and form the copper wire by a stretching technology after the metal ingot is cooled, however, the copper wire produced by the method has loose tissue and low electric conductivity and tensile strength, and cannot meet the use requirements of special occasions; and fashioned metal ingot need just can form the copper line by the step of repeated calendering drawing in the air, because this operation flow exposes in the air circumstance, makes copper oxidation easily, and then leads to the unstability of copper line finished product quality, in addition, need cool off after the casting again to carry out the calendering drawing, and process time is long, also can not automatic continuous production, and the length of shaping copper line depends on the size of metal ingot simultaneously, can't make the copper line infinitely prolong.

Please refer to taiwan TWI669170B patent of invention, which is a metal wire continuous casting device applied to a metal wire continuous casting operation of a roller belt type continuous casting wheel, wherein a belt-shaped first shaping portion on a wheel surface of the roller belt type continuous casting wheel is used for containing a metal melt, the metal melt is cooled and crystallized in the first shaping portion to form a metal wire, and the metal wire is continuously cast into a metal wire, and the metal wire continuous casting device can continuously cast and form a metal wire with an unlimited length as long as the metal melt is continuously provided. However, because the continuous casting operation is exposed to air, the metal is easy to be oxidized by contacting with the air, and the quality of the finished product is unstable; in addition, the continuous casting technology is to continuously bring the molten metal into a mold cavity with a closed geometric shape formed by the roller belt type continuous casting wheel and the shaping component through the rotation of the roller belt type continuous casting wheel, so that the roller belt type continuous casting wheel and the shaping component have good sealing performance, and the molten metal can be prevented from seeping out of the mold cavity with the closed geometric shape, namely the contact surface between the roller belt type continuous casting wheel and the shaping component has high precision, so that the difficulty in the operation of the roller belt type continuous casting wheel and the shaping component is increased; moreover, the roller belt type continuous casting wheel and the shaping component are worn due to long-term contact, so that the roller belt type continuous casting wheel and the shaping component cannot be tightly combined, the precision size of a metal wire finished product is influenced, and even the roller belt type continuous casting wheel and the shaping component need to be frequently replaced to maintain the quality of the metal wire finished product in order to improve the problem; the defects are not beneficial to mass production of metal wires and seriously affect the industrial competitiveness.

Now, the present inventors have been developing the technology of the present invention in view of the fact that metal wires with excellent quality are continuously cast and formed as one of the primary objectives that the industry needs to achieve.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a three-cavity multithread way vacuum hot mold continuous casting system mainly is the incessant operation that sees through three-cavity formulas such as feeding chamber, preheating chamber, continuous casting chamber to take and bleed in order to maintain vacuum environment in each cavity, input atmosphere separation metal liquid and air contact simultaneously, ensure that fashioned wire rod possesses high strength, high electrically conductive, resistant tortuous, the good quality of fatigue resistance, and be applicable to various accurate occasions.

The purpose of the utility model is realized by the following technology:

a three-cavity multi-runner vacuum hot mold continuous casting system comprises a feeding unit, a heating and melting unit, a continuous casting and forming unit, a heat energy generating unit, a vacuumizing unit and a protective gas generating unit; wherein:

the vacuumizing unit is used for pumping air in the feeding unit, the heating and melting unit and the continuous casting forming unit, so that the interiors of cavities of the feeding unit, the heating and melting unit and the continuous casting forming unit are maintained in a vacuum state;

the protective gas generating unit sends the generated protective atmosphere into the cavity of the feeding unit, the heating and melting unit and the continuous casting and forming unit, and the protective atmosphere prevents the oxidation phenomenon of the metal ingots and the molten metal to be melted in the cavity of the feeding unit, the heating and melting unit and the continuous casting and forming unit;

the metal ingot to be melted is input into the feeding unit to a certain amount, and is poured into the heating and melting unit from the feeding unit, the heat energy generation unit melts the metal ingot to be melted in the heating and melting unit to form molten metal, and the molten metal is sent into the continuous casting and forming unit and is directly and continuously extruded and formed into a metal wire by the continuous casting and forming unit;

the continuous casting forming unit comprises a crucible and a shell, the crucible is arranged in the shell, a heating assembly is annularly arranged at the periphery of the crucible, the shell is provided with a second interlayer, a temperature maintaining assembly is arranged in the second interlayer, the crucible is provided with a feeding groove and a discharging groove, the feeding groove is communicated with the discharging groove through a channel, the feeding groove receives molten metal output by the heating and melting unit, the discharging groove is communicated with at least two discharging ports, the discharging ports are connected with a forming casting mold, the temperature maintaining assembly is also arranged at the periphery of the forming casting mold, a casting cooling mechanism is arranged at the outlet end of the forming casting mold, and the casting cooling mechanism cools the forming metal wire in the direction along with the forming direction of the forming metal wire;

foundry goods cooling body contains outer ring cover and interior ring cover, interior ring cover is worn to establish inside the outer ring cover, the perisporium of interior ring cover with form the annular between the perisporium of outer ring cover, correspond annular department is equipped with a plurality of slants and runs through the perforation of perisporium, the orientation is established to the perforation to one side by the entry end that the foundry goods got into toward the exit end slant that the foundry goods left runs through, the outer ring cover corresponds cooling liquid input part is established to annular department, cooling liquid input part input cooling liquid warp the annular is set up by the slant perforation output.

The three-cavity multi-runner vacuum hot mold continuous casting system comprises a feeding unit, a conveying unit and a control unit, wherein the feeding unit comprises a feeding hopper, a cavity, a container and a rotating mechanism; the feeding hopper is arranged on the cavity, the container is suspended and erected in the cavity, the rotating mechanism controls the container to stand upright or overturn to topple, the top end of the cavity is communicated with the feeding hopper, and the bottom end of the cavity is tapered and communicated with the heating and melting unit.

The three-cavity multi-runner vacuum hot mold continuous casting system comprises a heating and melting unit, a heating and melting unit and a heat insulation and isolation layer, wherein the heating and melting unit comprises a furnace cavity and an outer shell, the furnace cavity is arranged inside the outer shell, the furnace cavity is communicated with the bottom end of the cavity, heat energy generated by the heat energy generating unit is supplied to the furnace cavity, the outer shell is provided with a first interlayer, and the first interlayer is internally provided with the heat insulation and isolation layer.

The three-cavity multi-runner vacuum hot mold continuous casting system comprises a heat energy generating unit, a heat energy generating unit and a control unit, wherein the heat energy generating unit is a high-frequency generator.

The three-cavity multi-runner vacuum hot mold continuous casting system is characterized in that a control valve is arranged between the heating and melting unit and the continuous casting and forming unit.

The three-cavity multi-runner vacuum hot mold continuous casting system as described above, wherein a plurality of the through holes arranged obliquely are arranged at equal angular intervals.

As above three-cavity multithread way vacuum hot mold continuous casting system, wherein, the continuous casting shaping unit still contains the sprue switch, the sprue switch corresponds the discharge gate is and establish, and it includes the sprue and opens and close power supply and rod, be equipped with the hole that a level runs through on the rod, the sprue is opened and close power supply control the rod rotates, on the rod the hole corresponds the intercommunication the discharge gate or on the rod the hole staggers the discharge gate.

The three-cavity multi-channel vacuum hot mold continuous casting system comprises a crucible, a control valve, a liquid level detector, a liquid level sensor and a control valve, wherein the liquid level detector is arranged in the crucible, is electrically connected with the control valve, and controls the opening or closing time of the control valve by detecting the height of the liquid level of the molten metal in the crucible through the liquid level detector.

The three-cavity multi-runner vacuum hot mold continuous casting system comprises a crucible, wherein a channel of the crucible is provided with a liquid level bolt, the height of the liquid level bolt is adjusted to change the caliber of the channel, and the flow of molten metal entering the discharging groove from the feeding groove is controlled.

The three-cavity multi-runner vacuum hot mold continuous casting system is characterized in that the protective atmosphere is abortifacient gas.

The three-cavity multi-runner vacuum hot mold continuous casting system comprises a mold, a mold cavity and a mold cavity.

The three-cavity multi-runner vacuum hot mold continuous casting system as described above, wherein the continuous casting molding unit further comprises a casting pulling unit for applying pulling force to guide the casting molded by the continuous casting molding unit and cooled to be output at a constant speed.

The three-cavity multi-runner vacuum hot mold continuous casting system comprises a casting pulling unit, a casting pulling unit and a plurality of pulling wheels, wherein the casting pulling unit comprises a power source, a transmission assembly and a plurality of pulling wheels, the power source drives the transmission assembly to operate and enables the transmission assembly to transmit the pulling wheels, the pulling wheels are arranged in pairs up and down, the pulling wheels arranged in pairs up and down are provided with guide grooves corresponding to each other, the guide grooves are arranged in a radial ring mode along the axis of the pulling wheels, and the rotating directions of the two pulling wheels arranged in pairs up and down are different from each other.

The three-cavity multi-runner vacuum hot mold continuous casting system comprises a casting pulling unit, a casting furling unit and a furling power source, wherein the casting furling unit comprises a furling power source and a furling frame, and the furling power source controls and drives the furling frame to rotate.

The three-cavity multi-runner vacuum hot mold continuous casting system comprises a casting furling unit, a furling power source and a control unit, wherein the casting furling unit further comprises a furling time controller, and the furling power source receives a furling starting control signal and a furling stopping control signal generated by the furling time controller.

Drawings

The drawings described herein are for illustration purposes only and are not intended to limit the scope of the present disclosure in any way. In addition, the shapes, the proportional sizes, and the like of the respective members in the drawings are merely schematic for helping the understanding of the present invention, and do not specifically limit the shapes, the proportional sizes, and the like of the respective members of the present invention. The skilled person in the art can, under the teaching of the present invention, choose various possible shapes and proportional dimensions to implement the invention according to the specific situation.

FIG. 1 is a block diagram of a three-cavity multi-runner vacuum hot mold continuous casting system according to the present invention;

FIG. 2 is a schematic diagram of the three-cavity multi-runner vacuum hot mold continuous casting system according to the present invention;

FIG. 3 is a schematic diagram of the structure of the feeding unit, the heating and melting unit, and the continuous casting unit of the present invention;

FIG. 4 is a schematic diagram of the material feeding unit and the heating and melting unit according to the present invention;

fig. 5 is a schematic perspective view of the feeding unit of the present invention;

FIG. 6 is a schematic view of the container of the feeding unit in a state of pouring the metal ingot according to the present invention;

FIG. 7 is a schematic structural view of a continuous casting molding unit according to the present invention;

FIG. 8 is a perspective view of a crucible of the present invention;

FIG. 9 is a perspective view showing the combination of the crucible, the level detector and the switch of the casting track according to the present invention;

FIG. 10 is a schematic view of the relationship between the discharge hole of the crucible and the hole of the rod according to the present invention;

FIG. 11 is a schematic view of the structural relationship between the forming die and the casting cooling mechanism of the present invention;

fig. 12 is an exploded perspective view of the casting cooling mechanism of the present invention;

FIG. 13 is a combined cross-sectional view of the casting cooling mechanism of the present invention;

fig. 14 is a perspective view of the casting drawing unit of the present invention.

Description of reference numerals:

1: a feeding unit 11: feeding end

12: a discharge end 13: feeding hopper

14: and (3) cavity 15: container with a lid

16: a rotating mechanism 2: heating and melting unit

21: furnace chamber 22: outer casing

23: first interlayer 24: thermal insulation isolation layer

25: the control valve 3: continuous casting forming unit

31: crucible 311: feeding groove

312: a discharge chute 313: channel

314: discharge port 32: shell body

33: the heating assembly 34: second interlayer

35: insulating and isolating layer 36: forming casting mould

361: insulating and isolating layer 37: casting cooling mechanism

371: outer ring sleeve 372: inner ring sleeve

373: the ring groove 374: perforation

375: cooling liquid input portion 38: switch for casting channel

381: the casting way opening and closing power source 382: bar material

383: hole 39: liquid level detector

30: liquid level bolt 4: thermal energy generating unit

5: the vacuumizing unit 6: protective gas generating unit

7: casting pulling unit 71: power source

72: the transmission assembly 73: pulling wheel

731: the guide groove 8: casting furling unit

81: the retraction power source 82: winding frame

83: timing controller for winding

Detailed Description

The details of the present invention can be more clearly understood with reference to the accompanying drawings and the description of the embodiments of the present invention. However, the specific embodiments of the present invention described herein are for the purpose of explanation only, and should not be construed as limiting the invention in any way. Given the teachings of the present invention, the skilled person can conceive of any possible variants based on the invention, which should all be considered as belonging to the scope of the invention.

It will be understood that when an element is referred to as being "secured to" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or intervening elements may be present.

For a more complete and clear disclosure of the technical content, objectives and effects achieved by the present invention, reference is made to the following detailed description, taken in conjunction with the accompanying drawings and reference numerals:

please refer to fig. 1 and fig. 2.

The utility model discloses a three-cavity multithread way vacuum hot mold continuous casting system includes: the device comprises a feeding unit 1, a heating and melting unit 2, a continuous casting forming unit 3, a heat energy generating unit 4, a vacuumizing unit 5 and a protective gas generating unit 6; wherein:

the feeding unit 1 is provided with a feeding end 11 and a discharging end 12, and the discharging end 12 is communicated and connected with the heating and melting unit 2; the vacuumizing unit 5 is connected with the feeding unit 1, the heating and melting unit 2 and the continuous casting forming unit 3 to exhaust air in the feeding unit 1, the heating and melting unit 2 and the continuous casting forming unit 3, so that the interiors of cavities of the feeding unit 1, the heating and melting unit 2 and the continuous casting forming unit 3 are maintained in a vacuum state; the heat energy generating unit 4 heats the heating and melting unit 2, and melts the metal ingot to be melted in the heating and melting unit 2 into molten metal; the protective gas generating unit 6 is also connected with the feeding unit 1, the heating and melting unit 2 and the continuous casting forming unit 3, can generate protective atmosphere, and can send the generated protective atmosphere into the cavities of the feeding unit 1, the heating and melting unit 2 and the continuous casting forming unit 3 so as to prevent the metal ingot to be melted in the feeding unit 1 and the metal liquid in the heating and melting unit 2 and the continuous casting forming unit 3 from generating oxidation phenomena through the protective atmosphere.

That is, when the metal ingot to be melted is input into the feeding unit 1 to a certain amount, the feeding unit 1 will automatically pour the metal ingot to be melted into the heating and melting unit 2, and the heat energy generating unit 4 will melt the metal ingot to be melted entering the heating and melting unit 2 to melt the metal ingot into molten metal, and then the molten metal is sent into the continuous casting and forming unit 3, and the continuous casting and forming unit 3 directly and continuously extrudes and forms metal wires; when the metal ingots to be melted are input into the feeding unit 1, the heating and melting unit 2 and the molten metal is input into the continuous casting and forming unit 3 and continuously cast and formed, the vacuumizing unit 5 can continuously act to exhaust air in the feeding unit 1, the heating and melting unit 2 and the continuous casting and forming unit 3, so that the vacuum state in the cavities of the feeding unit 1, the heating and melting unit 2 and the continuous casting and forming unit 3 is ensured; meanwhile, the protective gas generating unit 6 also continuously sends the generated protective atmosphere into the cavity of the feeding unit 1, the heating and melting unit 2 and the continuous casting and forming unit 3, so as to prevent the oxidation of the metal ingot to be melted and the molten metal through the protective atmosphere. Preferably, the protective atmosphere is an inert gas, particularly nitrogen or argon or a mixture of nitrogen and argon.

Please refer to fig. 3-5. In the preferred embodiment of the three-cavity multi-runner vacuum hot mold continuous casting system of the present invention, the feeding unit 1 comprises a feeding hopper 13, a cavity 14, a container 15 and a rotating mechanism 16; the feeding hopper 13 is provided with a feeding end 11, is arranged above the cavity 14 and is communicated with the top end of the cavity 14, the container 15 is a vessel with an upward opening, and is erected in the cavity 14 in a suspended state by a shaft, the output shaft of the rotating mechanism 16 is connected with the container 15 by a shaft, so that the container 15 is controlled to be upright or overturned and toppled by means of the forward rotation and the reverse rotation of the output shaft of the rotating mechanism 16, a blanking port of the feeding hopper 13 just corresponds to the opening of the container 15, a metal ingot to be melted is placed into the container 15 from the feeding end 11 of the feeding hopper 13 and then falls into the container 15, and the bottom end of the cavity 14 is a tapered discharging end 12 and is communicated with the heating and melting unit 2. Thus, a certain amount of the metal ingots to be melted is put into the melting furnace cavity of the heating and melting unit 2 (as shown in fig. 6), the metal ingots to be melted are dropped into the container 15, and then the rotating mechanism 16 rotates the output shaft to drive the container 15 to overturn and dump, so as to dump the metal ingots to be melted in the container 15, and then the metal ingots to be melted enter the melting furnace cavity of the heating and melting unit 2 through the guiding of the tapered output end 12 at the bottom end of the cavity 14; the container 15 after pouring is rotated reversely by the rotating mechanism 16 to move the container 15 back to the upright position for waiting for the next time of pouring the ingot of metal to be melted from the feeding hopper 13.

The above-mentioned action of driving the container 15 to overturn by the rotating mechanism 16 to pour out the to-be-melted metal ingots in the container 15 is helpful for stirring and mixing the to-be-melted metal ingots, and especially, when more than two kinds of metal ingots are to be melted for continuous casting of alloy wires, more than two kinds of metal ingots can be sufficiently mixed.

The utility model discloses a three-cavity type multithread way vacuum hot mold continuous casting system's preferred embodiment, heating and melting unit 2 contains smelting pot cavity 21 and shell body 22, smelting pot cavity 21 sets up inside shell body 22, and smelting pot cavity 21 and cavity 14's bottom intercommunication, heat energy produces heat energy supply smelting pot cavity 21 that unit 4 produced, shell body 22 has first intermediate layer 23, establish heat preservation isolation layer 24 in the first intermediate layer 23, see through the heat preservation isolation layer 24 and avoid the high temperature in smelting pot cavity 21 to scatter and disappear, and with heat energy and external separation, can maintain the temperature of molten metal liquid, and can safeguard staff's safety avoids being scalded. The insulating layer 24 is preferably made of refractory cotton.

In the preferred embodiment of the three-cavity multi-channel vacuum hot mold continuous casting system of the present invention, the heat energy generating unit 4 is a high frequency generator, which generates high temperature to melt the solid metal into liquid state by using the high frequency electromagnetic field of the high frequency generator.

In the preferred embodiment of the three-cavity multi-runner vacuum hot mold continuous casting system of the present invention, the control valve 25 is disposed between the heating and melting unit 2 and the continuous casting and forming unit 3, and the molten metal in the melting furnace cavity 21 is controlled by the opening and closing of the control valve 25 to enter the continuous casting and forming unit 3 for the operation of the die-casting and forming metal wire.

Please refer to fig. 3, fig. 7, fig. 8, fig. 9, fig. 10, and fig. 11. In the preferred embodiment of the three-cavity multi-runner vacuum hot mold continuous casting system of the present invention, the continuous casting forming unit 3 comprises a crucible 31 and a housing 32, the crucible 31 is disposed in the housing 32, and the periphery of the crucible 31 is surrounded by a heating assembly 33, so as to maintain the molten metal at the desired continuous casting forming temperature by heating the molten metal; the heating element 33 is preferably a carbon-silicon heating rod. The housing 32 has a second interlayer 34, and a heat insulation layer 35 is disposed in the second interlayer 34 to prevent the temperature of the metal liquid from being dissipated and prevent workers from being scalded. The crucible 31 has a feeding trough 311 and a discharging trough 312, the feeding trough 311 is communicated with the discharging trough 312 via a channel 313, the feeding trough 31 receives the molten metal output from the heating and melting unit 2, the discharging trough 312 is communicated with at least two discharging ports 314, the discharging ports 314 are connected with the forming mold 36, and the forming mold 36 is preferably made of graphite tube. The periphery of the forming casting mold 36 is also provided with a heat insulation layer 361 to avoid the temperature loss of the molten metal at the forming casting mold 36 and the influence on the quality of the formed metal wire, and a casting cooling mechanism 37 is arranged at the outlet end of the forming casting mold 36. The insulating layer 35, 361 is preferably made of refractory cotton. Further, the utility model relates to a system of hot mould continuous casting, the characteristic is the hot mould, therefore the temperature of forming die 36 must be maintained on the freezing point temperature of the shaping metal of wanting continuous casting, and the preferred is that the settlement is higher than wanting continuous casting shaping metal freezing point temperature 5 ~ 15 ℃.

In the preferred embodiment of the three-cavity multi-channel vacuum hot mold continuous casting system of the present invention, the chill casting cooling mechanism 37 comprises an outer ring cover 371 and an inner ring cover 372 (see fig. 12 and 13), the inner ring cover 372 is disposed inside the outer ring cover 371, a circular groove 373 is formed between the circumferential wall of the inner ring cover 372 and the circumferential wall of the outer ring cover 371, a plurality of through holes 374 obliquely penetrating the circumferential wall of the outer ring cover 371 are disposed at the corresponding circular groove 373, the oblique direction of the through holes 374 is from the inlet end of the casting (formed metal wire) to the outlet end of the casting, a cooling liquid inlet 375 is disposed at the position of the outer ring cover 371 corresponding to the circular groove 373, the cooling liquid inlet 375 is discharged from the obliquely disposed through holes 374 through the circular groove 373, and the formed casting is directly cooled, especially, the oblique direction of the through holes is set, so that the discharged cooling liquid flows out in the same direction as the direction of the metal wire formation, ensuring the quality of the metal wire continuous casting molding. In the preferred embodiment of the three-cavity multi-channel vacuum hot mold continuous casting system of the present invention, the through holes 374 are disposed at equal angular intervals, and the through holes 374 are disposed at equal angular intervals, so that the cooling liquid discharged from the through holes 374 can be uniformly and stably cooled down to the metal wire rod formed by continuous casting, thereby avoiding affecting the solidification interface of the metal wire rod.

In the preferred embodiment of the three-cavity multi-runner vacuum hot mold continuous casting system of the present invention, the continuous casting forming unit 3 further comprises a runner switch 38 (see fig. 9 and 10), the runner switch 38 is provided for corresponding to the discharge port 314 of the crucible 31 and comprises a runner opening and closing power source 381 and a rod 382, a horizontally penetrating hole 383 is provided on the rod 382, the runner opening and closing power source 381 can drive the rod 382 to rotate, so that when the rod 382 rotates to a state where the hole 383 corresponds to the discharge port 314 of the crucible 31, the discharge chute 312 of the crucible 31 is communicated with the discharge port 314 through the hole 383, the discharge chute 312 continuously supplies molten metal to the discharge port 314, so as to smoothly perform the continuous casting operation of the metal wire; when the sprue opening and closing power source 381 can drive the rod 382 to rotate so that the holes 383 on the rod 382 are staggered with the discharge port 314 of the crucible 31, the discharge chute 312 of the crucible 31 is not communicated with the discharge port 314, and the molten metal in the crucible 31 cannot enter the discharge port 314 for continuous casting operation. The rod 382 is preferably made of graphite.

In the preferred embodiment of the three-cavity multi-channel vacuum hot mold continuous casting system of the present invention, the continuous casting unit 3 further comprises a liquid level detector 39 (see fig. 9), the liquid level detector 39 is correspondingly disposed in the crucible 31, and the liquid level detector 39 is electrically connected to the control valve 25, so that the liquid level detector 39 detects the level of the molten metal in the crucible 31 and controls the opening or closing time of the control valve 25. In the preferred embodiment, four levels are set in the crucible 31, which are "high", "low" and "extremely low" from top to bottom, when the level detector 39 detects that the level of the molten metal in the crucible 31 is in "low" state, the level detector 39 will notify the control valve 25 to open, so that the molten metal in the heating and melting unit 2 enters the feeding groove 311 of the crucible 31, until the level detector 39 detects that the level of the molten metal in the crucible 31 reaches "high" state, the level detector 39 will notify the control valve 25 to close, and stop the molten metal in the heating and melting unit 2 from entering the feeding groove 311 of the crucible 31. If the level detector 39 detects that the level of molten metal in the crucible 31 is in "high" or "low" state, indicating that the control valve 25 does not actually perform the closing or opening operation when the level of molten metal is in "high" or "low" state, a warning signal, such as a flashing light or a warning sound, is generated at the same time to notify the staff to overhaul.

In the preferred embodiment of the three-cavity multi-runner vacuum hot mold continuous casting system of the present invention (refer to fig. 9 again), the channel 313 of the crucible 31 is provided with the liquid level bolt 30, which can mainly adjust the height position of the liquid level bolt 30 set in the channel 313 to change the sectional area of the channel 313, and further control the flow rate of the molten metal entering the discharge chute 312 from the feeding chute 311, wherein the control of the flow rate is related to the wire diameter of the continuous casting forming metal wire.

In the preferred embodiment of the three-cavity multi-runner vacuum hot mold continuous casting system of the present invention, the three-cavity multi-runner vacuum hot mold continuous casting system further comprises a casting drawing unit 7 (see fig. 1, fig. 2 and fig. 14) for applying a pulling force to guide the casting formed by the continuous casting forming unit 3 and outputting the cooled casting at a constant speed.

Preferably, the casting pulling unit 7 comprises a power source 71, a transmission assembly 72 and a plurality of pulling wheels 73, the power source 71 drives the transmission assembly 72 to rotate, so that the transmission assembly 72 can drive the pulling wheels 73 to rotate, the pulling wheels 73 are arranged in pairs, the wheel surfaces of the pulling wheels 73 arranged in pairs are provided with guide grooves 731 corresponding to each other, the guide grooves 731 are arranged around the axis of the pulling wheels 73 in the radial direction, the guide grooves 731 arranged in pairs correspondingly to the upper and lower pulling wheels 73 jointly form a wire slot, and the rotating directions of the pulling wheels 73 arranged in pairs face to each other; in this way, when the power source 71 drives the transmission assembly 72 to operate, and the transmission assembly 72 drives the pulling wheels 73 arranged in pairs up and down to rotate towards each other, the metal wires output by the forming mold 36 can be pulled and drawn out sequentially. Preferably, the pulling wheels 73 arranged in pairs can be arranged in several groups, so that the operation of pulling the metal wire can be more stable, and even the formed metal wire can be straightened and shaped. The speed of drawing the wire is as important as the temperature of the forming die 36 and must be coordinated so that the solidification interface of the formed wire is close to the mouth of the forming die 36, so too high a drawing speed must be avoided because too high a drawing speed would cause the solidification interface to leave the outside of the forming die 36, resulting in the outflow of molten metal that is at a high temperature and has not yet cooled to set.

In the preferred embodiment of the three-cavity multi-runner vacuum hot mold continuous casting system of the present invention, the casting furling unit 8 (as shown in fig. 1 and fig. 2) is further included, the casting furling unit 8 includes a furling power source 81 and a furling rack 82, and the furling power source 81 controls and drives the furling rack 82 to rotate. The formed metal wire is sequentially wound on the take-up frame 82 by the process of driving the take-up frame 82 to rotate by the take-up power source 81.

In the preferred embodiment of the three-cavity multi-runner vacuum hot mold continuous casting system of the present invention, the casting furling unit 8 further comprises a furling timing controller 83 (see fig. 1 and 2), the message of the wire dropping length induced by the furling timing controller 83 is used to generate the start and stop furling control signal, and the signal is transmitted to the furling power source 81, so that the furling power source 81 drives the furling frame 82 to rotate or stop rotating.

In the following description of the embodiments, the invention is described in detail, but the description is not to be construed as limiting the invention for any reason, and in particular, the features described in the different embodiments may be combined with each other as desired, thereby forming other embodiments, and the features are understood to be applicable to any one embodiment and not limited to the described embodiments unless explicitly described to the contrary.

Claims (15)

1. A three-cavity multi-runner vacuum hot mold continuous casting system comprises a feeding unit, a heating and melting unit, a continuous casting and forming unit, a heat energy generating unit, a vacuumizing unit and a protective gas generating unit; it is characterized in that the preparation method is characterized in that,

the vacuumizing unit is used for pumping air in the feeding unit, the heating and melting unit and the continuous casting forming unit, so that the interiors of cavities of the feeding unit, the heating and melting unit and the continuous casting forming unit are maintained in a vacuum state;

the protective gas generating unit sends the generated protective atmosphere into the cavity of the feeding unit, the heating and melting unit and the continuous casting and forming unit, and the protective atmosphere prevents the oxidation phenomenon of the metal ingots and the molten metal to be melted in the cavity of the feeding unit, the heating and melting unit and the continuous casting and forming unit;

the metal ingot to be melted is input into the feeding unit to a certain amount, and is poured into the heating and melting unit from the feeding unit, the heat energy generation unit melts the metal ingot to be melted in the heating and melting unit to form molten metal, and the molten metal is sent into the continuous casting and forming unit and is directly and continuously extruded and formed into a metal wire by the continuous casting and forming unit;

the continuous casting forming unit comprises a crucible and a shell, the crucible is arranged in the shell, a heating assembly is annularly arranged at the periphery of the crucible, the shell is provided with a second interlayer, a temperature maintaining assembly is arranged in the second interlayer, the crucible receives the molten metal output by the heating and melting unit, at least two discharge ports are arranged on the crucible, the discharge ports are connected with a forming casting mold, the temperature maintaining assembly is also arranged at the periphery of the forming casting mold, a casting cooling mechanism is arranged at the outlet end of the forming casting mold, and the casting cooling mechanism cools the formed metal wire rod in the direction along the crystal direction of the metal wire rod;

foundry goods cooling body contains outer ring cover and interior ring cover, interior ring cover is worn to establish inside the outer ring cover, the perisporium of interior ring cover with form the annular between the perisporium of outer ring cover, correspond annular department is equipped with a plurality of slants and runs through the perforation of perisporium, the orientation is established to the perforation to one side by the entry end that the foundry goods got into toward the exit end slant that the foundry goods left runs through, the outer ring cover corresponds cooling liquid input part is established to annular department, cooling liquid input part input cooling liquid warp the annular is set up by the slant perforation output.

2. The three-cavity multi-runner vacuum hot mold continuous casting system of claim 1, wherein the feeding unit comprises a feeding hopper, a cavity, a container and a rotating mechanism; the feeding hopper is arranged on the cavity, the container is suspended and erected in the cavity, the rotating mechanism controls the container to stand upright or overturn to topple, the top end of the cavity is communicated with the feeding hopper, and the bottom end of the cavity is tapered and communicated with the heating and melting unit.

3. The three-cavity multi-runner vacuum hot mold continuous casting system of claim 2, wherein the heating and melting unit comprises a furnace cavity and an outer shell, the furnace cavity is disposed inside the outer shell, the furnace cavity is communicated with a bottom end of the cavity, the heat energy generated by the heat energy generating unit is supplied to the furnace cavity, the outer shell has a first interlayer, and a heat insulating layer is disposed in the first interlayer.

4. The three-cavity, multi-runner vacuum thermal mold continuous casting system of claim 3, wherein the thermal energy generating unit is a high frequency generator.

5. The three-cavity multi-runner vacuum hot mold continuous casting system according to claim 1, 2, 3 or 4, wherein the continuous casting forming unit further comprises a runner switch, the runner switch is disposed corresponding to the discharge port and comprises a runner opening and closing power source and a bar, the bar is provided with a horizontal through hole, the runner opening and closing power source controls the bar to rotate, and the hole on the bar is correspondingly communicated with the discharge port or the hole on the bar is staggered with the discharge port.

6. The three-cavity multi-runner vacuum hot mold continuous casting system of claim 5, wherein a control valve is provided between the heating and melting unit and the continuous casting and molding unit.

7. The three-cavity multi-channel vacuum thermal mold continuous casting system according to claim 6, wherein the continuous casting forming unit further comprises a liquid level detector, the liquid level detector is correspondingly disposed in the crucible, the liquid level detector is electrically connected to the control valve, and the opening or closing time of the control valve is controlled by detecting the height or the height of the liquid level of the molten metal in the crucible through the liquid level detector.

8. The three-cavity multi-runner vacuum hot mold continuous casting system according to claim 7, wherein the crucible has a feeding trough and a discharging trough, the feeding trough is communicated with the discharging trough through a channel, a liquid level bolt is arranged at the channel, the height of the liquid level bolt is adjusted to change the caliber of the channel, and the flow of the molten metal from the feeding trough to the discharging trough is controlled.

9. The three-cavity, multi-runner vacuum hot mold continuous casting system of claim 5, wherein a plurality of said diagonally disposed perforations are equiangularly spaced.

10. The three-cavity multi-runner vacuum thermal mold continuous casting system of claim 5, wherein the protective atmosphere is an inert gas.

11. The three-cavity multi-runner vacuum thermal mold continuous casting system of claim 10, wherein the inert gas is nitrogen or/and argon.

12. The three-cavity, multi-runner vacuum hot mold continuous casting system of claim 5, wherein the continuous casting forming unit further comprises a casting pulling unit that applies pulling force to guide the casting formed by the continuous casting forming unit and cooled at a constant speed out.

13. The three-cavity multi-runner vacuum hot mold continuous casting system according to claim 12, wherein the casting pulling unit comprises a power source, a transmission assembly and a plurality of pulling wheels, the power source drives the transmission assembly to operate, the transmission assembly drives the pulling wheels, the pulling wheels are arranged in pairs, the guiding grooves are arranged in the pairs, the guiding grooves are arranged in a radial direction along the axes of the pulling wheels, and the rotating directions of the pulling wheels are different.

14. The three-cavity multi-runner vacuum hot die continuous casting system of claim 13, wherein the casting pulling unit further comprises a casting furling unit, the casting furling unit comprises a furling power source and a furling rack, and the furling power source controls and drives the furling rack to rotate.

15. The three-cavity, multi-runner vacuum hot mold continuous casting system of claim 14, wherein the casting furling unit further comprises a furling timing controller, and the furling power source receives furling start control signals and furling stop control signals generated by the furling timing controller.

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