CN106424633A - Metal forming equipment as well as smelting furnace and smelting device thereof - Google Patents
Metal forming equipment as well as smelting furnace and smelting device thereof Download PDFInfo
- Publication number
- CN106424633A CN106424633A CN201610861589.3A CN201610861589A CN106424633A CN 106424633 A CN106424633 A CN 106424633A CN 201610861589 A CN201610861589 A CN 201610861589A CN 106424633 A CN106424633 A CN 106424633A
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- smelting
- power device
- output shaft
- mounting seat
- die
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- 238000003723 Smelting Methods 0.000 title claims abstract description 64
- 239000002184 metal Substances 0.000 title claims abstract description 22
- 238000002844 melting Methods 0.000 claims abstract description 49
- 230000008018 melting Effects 0.000 claims abstract description 49
- 238000002347 injection Methods 0.000 claims abstract description 44
- 239000007924 injection Substances 0.000 claims abstract description 44
- 230000007246 mechanism Effects 0.000 claims abstract description 42
- 239000000155 melt Substances 0.000 claims abstract description 29
- 239000000463 material Substances 0.000 claims abstract description 17
- 239000003638 chemical reducing agent Substances 0.000 claims description 22
- 238000010438 heat treatment Methods 0.000 claims description 13
- 230000005540 biological transmission Effects 0.000 claims description 8
- 230000006698 induction Effects 0.000 claims description 2
- 239000000956 alloy Substances 0.000 abstract description 16
- 239000002994 raw material Substances 0.000 abstract description 7
- 229910045601 alloy Inorganic materials 0.000 abstract description 6
- 238000004512 die casting Methods 0.000 description 22
- 229910000808 amorphous metal alloy Inorganic materials 0.000 description 21
- 238000000034 method Methods 0.000 description 8
- 239000000243 solution Substances 0.000 description 8
- 230000008569 process Effects 0.000 description 5
- 230000007547 defect Effects 0.000 description 4
- 230000001681 protective effect Effects 0.000 description 4
- 238000005086 pumping Methods 0.000 description 4
- 230000009467 reduction Effects 0.000 description 4
- 238000001816 cooling Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 230000033001 locomotion Effects 0.000 description 3
- 230000003647 oxidation Effects 0.000 description 3
- 238000007254 oxidation reaction Methods 0.000 description 3
- 230000002441 reversible effect Effects 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 239000002826 coolant Substances 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 239000005300 metallic glass Substances 0.000 description 2
- 239000012768 molten material Substances 0.000 description 2
- 230000002829 reductive effect Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000000670 limiting effect Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000006911 nucleation Effects 0.000 description 1
- 238000010899 nucleation Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
- B22D17/02—Hot chamber machines, i.e. with heated press chamber in which metal is melted
- B22D17/04—Plunger machines
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
- B22D17/14—Machines with evacuated die cavity
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
- B22D17/20—Accessories: Details
- B22D17/28—Melting pots
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Crucibles And Fluidized-Bed Furnaces (AREA)
- Continuous Casting (AREA)
Abstract
The invention discloses metal forming equipment as well as a smelting furnace and a smelting device thereof. The smelting device comprises a swing mechanism, a rotation mechanism and a melting container. The swing mechanism is capable of driving the rotation mechanism to swing, the rotation mechanism is capable of driving the melting container to rotate, thus the melting container is capable of receiving raw materials to be melted at one position, and then moving to another position and pouring a melt formed after melting the materials in a press-injection material barrel. The smelting device disclosed by the invention is capable of profitably increasing the yield of amorphous alloys.
Description
Technical Field
The invention relates to an amorphous alloy die-casting forming technology, in particular to amorphous alloy smelting die-casting forming equipment in a vacuum environment.
Background
The amorphous alloy material is solidified by super-quenching, atoms are not in time of orderly arranging and crystallizing when the alloy is solidified, the obtained solid alloy has a long-range disordered structure, and crystal grains and crystal boundaries of crystalline alloy do not exist.
The conventional metal solution is easy to generate hard spots formed by oxidation slag inclusion during smelting and forming when a component is formed by a die-casting forming device, and because the metal solution fills a die cavity in a high-speed injection state, gas in the die cavity is discharged in time, the metal solution is inevitably involved in the metal solution and is retained in a die casting in a gas hole form, so that the die casting has gas hole defects and the product quality is poor. The amorphous alloy has excellent physical and chemical properties different from common crystalline metal materials, high yield strength, high hardness, super elasticity, high wear resistance, high corrosion resistance and the like, and also has excellent casting performance, but has more severe forming conditions than conventional metal solutions. Therefore, the amorphous alloy has higher requirements than the conventional metal die-casting.
The existing amorphous vacuum die casting equipment comprises vertical and horizontal amorphous die casting. The vertical die casting machine has higher height requirement on a factory building due to structural limitation, and easily splashes molten liquid onto the surface of a die in the pouring process to cause die defects and damage to the die. A horizontal die casting machine is characterized in that in order to maintain a vacuum environment, protective gas is filled into a closed vacuum chamber to prevent and control metal oxidation during smelting and forming, but the possibility of the defect that a formed part contains pores exists. The other method is to vacuumize a closed vacuum chamber to keep the amorphous solution in a vacuum environment in the real forming process, but the existing equipment can not well keep the required vacuum degree of the amorphous alloy forming product in the vacuum chamber, so that the yield of the amorphous product is not high.
Disclosure of Invention
The invention aims to provide a metal forming device which is compact in structure and improves the yield of amorphous alloy.
In order to achieve the above object, the present invention provides a melting apparatus comprising:
a swing mechanism, the swing mechanism comprising:
a first mounting seat;
the first power device is arranged on the first mounting seat;
one end of the swinging bracket is connected to an output shaft of the first power device;
a rotation mechanism, the rotation mechanism comprising:
the second mounting seat is connected with the other end of the swing bracket and matched to rotate around the rotating central axis of the output shaft of the first power device;
the second power device is arranged on the second mounting seat;
a rotating shaft rotatably mounted to the second mount, one end of the rotating shaft being associated with the second power device and configured to be driven in rotation by the second power device; and
a melting vessel connected to the other end of the rotating shaft and provided with a heating device to melt a material; wherein,
the other end of the swing bracket deviates from the rotating central axis of the output shaft of the first power device, and the rotating central axis of the output shaft of the first power device is vertical to the rotating central axis of the rotating shaft.
In one embodiment, a flexible tube is connected between the first mounting seat and the second mounting seat.
In one embodiment, the first power device includes a first motor and a first speed reducer, an output shaft of the first motor is connected to an input shaft of the first speed reducer, and an output shaft of the first speed reducer is the output shaft of the first power device.
In one embodiment, the second power device includes a second motor, a second speed reducer, and a pulley transmission mechanism, where the pulley transmission mechanism includes a driving wheel, a belt, and a driven wheel, an output shaft of the second motor is connected to an input shaft of the second speed reducer, an output shaft of the second speed reducer is connected to the driving wheel, the driving wheel is connected to the driven wheel through the belt, and the driven wheel is connected to the rotating shaft.
In one embodiment, the heating device is an induction heating device.
According to another aspect of the present invention, there is provided a melting furnace comprising a furnace body provided with a closed chamber, a charging port, and a vacuum port, wherein the vacuum port is connected with a vacuum-pumping device to evacuate the closed chamber. The smelting furnace further comprises a smelting device which is hermetically installed on the furnace body and comprises:
a swing mechanism, the swing mechanism comprising:
a first mounting seat;
the first power device is arranged on the first mounting seat;
one end of the swinging bracket is connected to an output shaft of the first power device;
a rotation mechanism, the rotation mechanism comprising:
the second mounting seat is connected with the other end of the swing bracket and matched to rotate around the rotating central axis of the output shaft of the first power device;
the second power device is arranged on the second mounting seat;
a rotating shaft rotatably mounted to the second mount, one end of the rotating shaft being associated with the second power device and configured to be driven in rotation by the second power device; and
a melting container connected to the other end of the rotating shaft and provided with a heating device to melt the material; wherein,
the other end of the swing bracket is deviated from the rotating central axis of the output shaft of the first power device, the rotating central axis of the output shaft of the first power device is vertical to the rotating central axis of the rotating shaft, and a part of the rotating shaft and the melting container are arranged in the closed chamber.
In one embodiment, the furnace body is provided with a smelting device mounting opening, and one end of the rotating shaft, which is connected with the smelting container, penetrates through the smelting device mounting opening and extends into the closed chamber.
In one embodiment, a fixing plate is connected to the outer side of the mounting port of the smelting device, the first mounting seat is fixed on the fixing plate, and a flexible pipe is arranged between the fixing plate and the second mounting seat.
In an embodiment, the first mounting seat is fixed to a housing of the smelting furnace, and the second mounting seat is located outside a body of the smelting furnace.
According to a further aspect of the present invention, there is provided a metal forming apparatus comprising a movable die plate, a fixed die plate, a shot sleeve and a driving device, wherein a movable die and a fixed die of a die are respectively mounted on the movable die plate and the fixed die plate, the movable die and the fixed die define a die cavity therebetween when closed, the shot sleeve communicates with the die cavity and has a melt inlet, an injection plug for injecting a melt into the die cavity is provided in the shot sleeve, and the driving device drives the injection plug to move, characterized in that the metal forming apparatus further comprises the melting furnace described above, wherein the melting vessel is arranged so as to be able to place a melt formed after melting a material into the melt inlet.
In one embodiment, the casing of the smelting furnace is a sandwich structure, and the smelting furnace is provided with cooling means, so that cooling medium can be fed into the interior of the sandwich structure via the cooling means.
In one embodiment, the hopper is a multi-grid rotary hopper, so that continuous feeding can be realized.
The metal forming equipment is amorphous alloy smelting equipment and can realize smelting and vacuum die casting simultaneously. The equipment has compact structure, adopts a direct centralized vacuum pumping chamber method, can establish high vacuum degree, effectively solves the defects of air holes and the like in the forming process and the treatment of metal oxidation resistance, avoids the problem that the synthesis of amorphous alloy is hindered by heterogeneous nucleation points formed by the reaction of amorphous alloy melt and gas elements, is particularly suitable for the vacuum melting and the vacuum die-casting of amorphous materials, and can ensure the yield of the amorphous alloy.
Drawings
FIG. 1 is a perspective view of a metal forming apparatus according to an embodiment of the present invention.
FIG. 2 is a cross-sectional view of the metal forming apparatus of FIG. 1 taken along section line A-A.
Fig. 3 is an enlarged view of a portion B of fig. 2.
Fig. 4 is a schematic structural view of a melting furnace according to an embodiment of the present invention.
Fig. 5 is a schematic structural view of a smelting apparatus according to an embodiment of the present invention.
FIG. 6 is a schematic structural diagram of the melting device of FIG. 5 applied to a vertical amorphous metal forming apparatus.
Detailed Description
The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings so that the objects, features and advantages of the invention can be more clearly understood. It should be understood that the embodiments shown in the drawings are not intended to limit the scope of the present invention, but are merely intended to illustrate the spirit of the technical solution of the present invention.
As shown in fig. 1, the amorphous alloy is melted and die-cast, and the metal forming apparatus 100 includes a movable die plate 1, a fixed die plate 2, a melting furnace 3, an injection device 4, and a vacuum extractor 5. The fixed die 21 and the movable die 22 of the die are respectively mounted to the fixed die plate 1 and the movable die plate 2 to perform opening and closing motions, and the fixed die and the movable die define a die cavity 19 therebetween when closed. The mold cavity evacuating device 20 is used to evacuate the mold cavity 19. The fixed template is connected with the smelting furnace, and a vacuum sealing element is arranged between the smelting furnace and the fixed template and used for sealing a vacuum chamber in the smelting furnace. The interior of the melting furnace is a closed chamber which is a vacuum chamber containing the melting crucible and the front end portion of the injection device. The injection device is connected with the smelting furnace in a sealing way and comprises a shockproof gasket. In the injection device 4, a part of the components including the injection plug 41 is placed in a vacuum chamber of the melting furnace 3, and the injection cylinder 6 is installed in a fixed die plate, and the injection plug for injecting the amorphous raw material into a die cavity is provided inside the injection cylinder. The vacuum pumping device 5 is connected with the smelting furnace 3 and is used for pumping vacuum in the vacuum chamber of the smelting furnace 3. Here, the fixed die plate, the fixed die and the movable die may adopt any suitable or yet to be developed structure in the art. The drive section of the shot device is located outside the vacuum chamber and any suitable or yet to be developed drive means in the art may be employed.
The fixed die plate 2 has a shot sleeve 6 mounted therein. In this embodiment, the shot sleeve 6 is located entirely within the fixed platen 2 and does not extend into the vacuum chamber of the melting furnace. As shown in more detail in fig. 3, the shot cartridge 6 comprises an inner cylinder 601 and an outer cylinder 602 with an annular groove 603 formed therebetween. The annular groove 603 may be filled with a heat insulating fluid to prevent the liquid amorphous metal from being reduced in temperature and adhering to the walls of the channel defining the channel 604 of the inner barrel. The injection cylinder 6 is provided with a melt inlet 605, and the molten amorphous metal alloy enters the injection cylinder through the melt inlet 605. A further funnel 7 may be placed over the melt inlet 605 to facilitate pouring of the molten amorphous metal alloy into the shot sleeve. The side of the stationary platen 2 facing the smelting furnace 3 is provided with a cavity 201. The cavity 20 is open more than at the bottom and has a substantially trapezoidal longitudinal cross-section to facilitate the entry of the melting vessel in the melting furnace 3 into the cavity. The pocket 20 communicates with both the enclosed chamber and the melt inlet, and the melt inlet is located within the pocket 20.
As shown in fig. 4 and 5, the melting furnace 3 includes a furnace body 31, the inside of which is a vacuum chamber, and a melting device 32 for melting and transferring the raw material to the melt inlet of the shot sleeve. The smelting pot shell adopts a sandwich structure, and a cooling medium is introduced into the sandwich through the cooling device 17 to protect the temperature of the smelting pot shell to be proper, so that the temperature of the smelting pot shell is not too high. Be equipped with hopper 33 on the furnace body, hopper 33 is many check hoppers of rotation type, can guarantee the continuity of automatic material conveying work operation, need not open the hopper charge door at every turn. A hopper connecting pipe 11 is arranged in the vacuum chamber, when a melting container (such as a crucible) is in a proper position, the hopper connecting pipe can add amorphous alloy materials into the rotatable swing type crucible in the vacuum chamber, and the amorphous alloy materials are heated by a heating device to be melted. After the amorphous alloy is smelted, the crucible is driven by the rotatable swing mechanism to feed the molten material into an injection charging barrel with a melt inlet, and an injection plug in the injection charging barrel can quickly push the molten amorphous alloy material into a die cavity defined by the movable die and the fixed die under the action of the injection device to perform die-casting molding. An infrared imager 12 and a multi-piece observation window 13 are arranged outside the furnace shell, and the multi-piece observation window can be uniformly detached in a certain period to carry out cleaning work in the process of heating the amorphous alloy by a heating device, so that the work content is reduced, and the continuity of the work is ensured. The furnace body 31 is provided with a movable door 15 and an observation window 16, wherein the movable door is used for disassembling and maintaining parts in the smelting shell, and the smelting state in the smelting furnace can be observed through the observation window. The junction plate is arranged outside the furnace body and used for being communicated with an electronic detection device arranged in the vacuum chamber, and the injection displacement speed is detected through the movement of the injection limiting rod. The equipment is also provided with a vacuum pressure gauge 14 and a protective gas interface. The vacuum pressure gauge can monitor the vacuum degree in the vacuum chamber in real time. The protective gas interface can be introduced with protective gas, and harmful gas in the smelting furnace is purified by the purifying device.
The furnace body is also provided with a vacuumizing port, wherein the vacuumizing port is connected with a vacuumizing device 5 to vacuumize the closed cavity. Specifically, after the fixed die and the movable die are closed to form the die cavity, the vacuumizing device purifies harmful gas in the vacuum chamber, the vacuumizing pipeline is communicated with the smelting furnace, and an electronic gauge pipe is arranged on the vacuumizing pipeline and used for displaying the vacuum pressure in the pipeline on a control panel, and the vacuumizing pipeline contains a gas detection port and used for detecting harmful gas components in the vacuum pipeline. The vacuumizing device consists of a group of vacuumizing pump sets, the vacuumizing pump sets and the smelting furnace are communicated through a vacuumizing pipeline, so that vacuum smelting and vacuum die-casting can be realized simultaneously, the structure is compact, and the vacuumizing volume is smaller. The vacuumizing pump set comprises a combination of a first-stage mechanical vortex pump and a second-stage roots pump, the mechanical vortex pump is started through a control system during working, and after the pressure in the vacuum chamber reaches a certain value set by the system, the roots pump is started to continuously vacuumize, so that the required vacuum smelting environment of the amorphous alloy material is always kept in the vacuum chamber. According to the equipment, the vacuum environment required by the amorphous alloy can be obtained by matching the mold vacuumizing with the closed vacuum chamber vacuumizing, and the yield of the amorphous product is ensured.
A portion of the melting device 32 passes through the furnace body 31 into the vacuum chamber. As shown in fig. 4 and 5, the melting apparatus 32 includes a swing mechanism 321, a rotation mechanism 322, and a melting vessel 323, wherein the rotation mechanism 322 is used to rotate the melting vessel 323 so that the melting vessel can be switched between a position to receive raw material to be melted and a position to pour the melted material into a melt inlet. In the position for receiving the raw material to be melted, the melting vessel is located below the feed opening with the opening facing generally upward, and in the position for pouring the molten material into the melt inlet, the melting vessel is located within the cavity 20 of the stationary platen 2 and above the melt inlet, and the melting vessel is rotated about an axis of rotation to pour the melt into the melt inlet. The swing mechanism is used to swing the entire swing mechanism 322 about a central axis so that the melt vessel can be moved from a position below the feed opening to within the cavity of the stationary platen above the melt inlet.
The swing mechanism 321 includes a swing motor 3211 and a reduction gear 3212, and an output shaft of the swing motor 3211 is connected to an input shaft of the reduction gear. The speed reducer 3212 is mounted on a mounting seat 3213 of the furnace body casing. An output shaft of the speed reducer 3212 is connected to one end of the swing bracket 3215. The other end of the swing bracket 3215 is connected to the mounting seat 3221 in the rotating mechanism 322, so that the swing of the swing bracket 3215 can drive the mounting seat 3221 to swing, thereby driving the entire rotating mechanism to swing. A swing support 3216 is arranged on the furnace body shell at a position symmetrical to the swing support 3215, and the swing support 3216 is used for supporting and guiding the mounting seat 3221.
The rotating mechanism includes a rotating motor 3222 and a speed reducer 3223, and an output shaft of the rotating motor 3222 is connected to an input shaft of the speed reducer 3223. An output shaft of the reduction gear 3223 is connected with a driving wheel 3224 of the pulley transmission mechanism. Driven pulley 3225 of the pulley transmission is connected via a belt 3221. The driven wheel 3225 is connected to the rotation shaft 3227 such that the rotation shaft 3227 can be rotated by the driven wheel 3225. The rotating shaft 3227 passes through a melting device mounting port on the furnace body, and the end of the rotating shaft 3227 is connected to a melting vessel 323, such as a crucible. The melting container is provided with a heating device for melting materials. The outer side of the mounting port of the smelting device is connected with a fixing plate 8. The mounting seat 3213 may be fixed to the fixing plate 8. A flexible tube 9 is provided between the fixed plate 8 and the mounting seat 3221, so that the rotating mechanism 32 can be swung while maintaining the vacuum degree of the vacuum chamber inside the furnace body.
It should be understood that the oscillating mechanism and the rotating mechanism may adopt any other suitable structure and manner under the condition that the above function is satisfied, for example, in the oscillating mechanism and the rotating mechanism, the speed reduction device and/or the belt wheel transmission mechanism may be eliminated by adopting a suitable motor.
When the swing motor is operated, under the control of a control system, the swing motor 3211 starts to rotate to drive the swing motor speed reducer 3212 fixed on the swing motor mounting seat to rotate, one end of the swing bracket 3215 is connected with the swing motor speed reducer, the other end of the swing bracket is connected with the mounting seat 3221, after the swing motor speed reducer starts to rotate, the swing bracket fixed with the swing motor speed reducer is driven to rotate, and the rotating force of the swing bracket acts on the connected mounting seat 3221 to cause the mounting seat 3221 to start to swing around the axis of the rotating motor. The crucible arranged at the front end of the rotating shaft can swing back and forth between the hopper connecting pipe and the material inlet of the injection charging barrel by controlling the forward and reverse rotation of the swing motor. When the smelting crucible moves to a proper position beside the hopper connecting pipe, the rotating motor starts to drive the rotating motor speed reducer to move through system control, and the belt wheel transmission device is driven to start to rotate through the movement of the rotating motor speed reducer. The belt wheel device is connected with the rotating shaft and can drive the rotating shaft to rotate so as to drive the crucible at the front end of the rotary swing device to rotate. By controlling the forward and reverse rotation of the rotating motor, the smelting crucible can perform forward and reverse rotation in a certain range under the drive of the rotating shaft. In order to smoothly receive materials and protect the smelting crucible, the crucible rotates at the position beside the hopper connecting pipe, and the crucible rotates under the control of a control system to ensure that the alloy materials which slide in from the hopper connecting pipe can be just hit to the bottom of the smelting crucible. After the crucible receiving is finished, the rotating motor starts to rotate in the opposite direction to align the crucible. The swing motor starts to work, the mounting seat 3221 rotates to a proper position, the swing motor stops working, the melting crucible stops correspondingly, and the alloy material in the crucible is melted and heated through the heating device. At this time, the crucible should be located below the infrared imager and the multi-piece observation window, and the melting temperature can be monitored to judge whether the alloy material is melted or not.
After the alloy materials are melted, the swing motor continues to work, the crucible is moved to a position close to the material inlet of the injection charging barrel, the crucible is rotated under the action of the rotating motor, the molten raw materials are poured into the material inlet of the injection charging barrel, and the crucible is appropriately stopped to ensure that all the raw materials in the crucible are poured out. Then the rotating motor works to drive the crucible to be righted; the swinging motor works to drive the crucible to return to the initial position. The next cycle can then be performed.
In the metal forming device of the present invention, the temperature control device 18 is used in cooperation to perform temperature control operation on the injection cylinder, so that the purpose of accurately controlling the temperature can be achieved, thereby preventing the metal solution from adhering to the inner surface of the injection cylinder and prolonging the service life of the injection cylinder and the injection plug. And the injection charging barrel with a melt inlet is arranged inside the fixed template plate, and the amorphous melt can be added into the funnel at the melt inlet of the injection charging barrel through the rotary swinging device. After the die cavity is formed by the die-casting forming fixed die and the moving die, the melt inlet is correspondingly closer to the die cavity because the whole injection cylinder is arranged in the fixed die plate, and after the molten alloy material in the crucible is poured into the injection cylinder, because the stroke from the melt inlet to the die cavity is shorter, the injection plug in the injection cylinder can spray the molten alloy into the die cavity more quickly, so that the temperature loss of the amorphous molten alloy is less, the yield of the product is higher, and the yield can reach more than 90%. In addition, because the fuse-element entry is more close to the die cavity, the length of injection pole is shorter, and intensity is better, and equipment structure is compacter, is carrying out die-casting fashioned in-process, can guarantee that the life of injection pole is more permanent. Compared with the prior art, in the traditional horizontal vacuum die casting machine, the vacuum melting chamber is a crucible only with a rotating function, and a shaft for driving the crucible to rotate cannot swing, so that the crucible can always receive materials at a fixed position, melt and feed, and molten liquid is added into the injection charging barrel in the feeding process, so that the design of the feeding port of the injection charging barrel must be at the lower part of the melting crucible, and the feeding port is positioned at other places of the injection charging barrel and is not positioned in the die casting equipment at the position of the lower part of the melting crucible, so that the feeding work cannot be carried out, and due to the limitation of the position design of the feeding port, the design scheme cannot be better, and the equipment performance is influenced.
It is to be noted that the present swing rotation apparatus may be applied to a vacuum die casting machine configured to be horizontal, and may also be applied to a vacuum die casting machine configured to be vertical, as shown in fig. 6. In the horizontal type vacuum die casting machine, the melt in the crucible is fed to the feed opening at the injection cylinder, whereas in the vertical type vacuum die casting machine, the melt in the crucible is fed to the feed opening at the fixed die 20.
While the preferred embodiments of the present invention have been illustrated and described in detail, it should be understood that various changes and modifications of the invention can be effected therein by those skilled in the art after reading the above teachings of the invention. Such equivalents are intended to fall within the scope of the claims appended hereto.
Claims (10)
1. A smelting apparatus, characterized in that the smelting apparatus comprises:
a swing mechanism, the swing mechanism comprising:
a first mounting seat;
the first power device is arranged on the first mounting seat;
one end of the swinging bracket is connected to an output shaft of the first power device;
a rotation mechanism, the rotation mechanism comprising:
the second mounting seat is connected with the other end of the swing bracket and matched to rotate around the rotating central axis of the output shaft of the first power device;
the second power device is arranged on the second mounting seat;
a rotating shaft rotatably mounted to the second mount, one end of the rotating shaft being associated with the second power device and configured to be driven in rotation by the second power device; and
a melting vessel connected to the other end of the rotating shaft and provided with a heating device to melt a material; wherein,
the other end of the swing bracket deviates from the rotating central axis of the output shaft of the first power device, and the rotating central axis of the output shaft of the first power device is vertical to the rotating central axis of the rotating shaft.
2. Smelting apparatus as claimed in claim 1, wherein a flexible pipe is connected between said first and second mounting blocks.
3. The smelting device as claimed in claim 1, wherein said first power unit includes a first motor and a first speed reducer, an output shaft of said first motor being connected to an input shaft of said first speed reducer, an output shaft of said first speed reducer being said output shaft of said first power unit.
4. The smelting device as claimed in claim 1, wherein the second power unit includes a second motor, a second speed reducer, and a pulley transmission mechanism, wherein the pulley transmission mechanism includes a driving pulley, a belt, and a driven pulley, an output shaft of the second motor is connected to an input shaft of the second speed reducer, an output shaft of the second speed reducer is connected to the driving pulley, the driving pulley is connected to the driven pulley through the belt, and the driven pulley is connected to the rotating shaft.
5. Smelting apparatus as claimed in claim 1, wherein the heating means is an induction heating means.
6. A smelting furnace comprising a body provided with a closed chamber, a charging port and an evacuation port, wherein the evacuation port is connected with evacuation means for evacuating the closed chamber, characterized in that the smelting furnace further comprises smelting means which is sealingly mounted on the body and which comprises:
a swing mechanism, the swing mechanism comprising:
a first mounting seat;
the first power device is arranged on the first mounting seat;
one end of the swinging bracket is connected to an output shaft of the first power device;
a rotation mechanism, the rotation mechanism comprising:
the second mounting seat is connected with the other end of the swing bracket and matched to rotate around the rotating central axis of the output shaft of the first power device;
the second power device is arranged on the second mounting seat;
a rotating shaft rotatably mounted to the second mount, one end of the rotating shaft being associated with the second power device and configured to be driven in rotation by the second power device; and
a melting container connected to the other end of the rotating shaft and provided with a heating device to melt the material; wherein,
the other end of the swing bracket is deviated from the rotating central axis of the output shaft of the first power device, the rotating central axis of the output shaft of the first power device is vertical to the rotating central axis of the rotating shaft, and a part of the rotating shaft and the melting container are arranged in the closed chamber.
7. The smelting furnace of claim 6, wherein the vessel body is provided with a smelting unit mounting port through which an end of the rotating shaft to which the smelting vessel is connected extends into the closed chamber.
8. The smelting furnace of claim 7, wherein a fixing plate is connected to an outer side of the smelting device mounting opening, the first mounting seat is fixed to the fixing plate, and a flexible pipe is arranged between the fixing plate and the second mounting seat.
9. The smelting furnace of claim 6, wherein the first mount is fixed to a housing of the smelting furnace and the second mount is located outside a body of the smelting furnace.
10. A metal forming apparatus comprising a movable die plate, a fixed die plate, an injection barrel and a drive means, wherein a movable die and a fixed die of a die are respectively mounted on the movable die plate and the fixed die plate, the movable die and the fixed die can be separated or closed, the movable die and the fixed die define a die cavity therebetween when closed, the injection barrel is in communication with the die cavity and has a melt inlet, an injection plug for injecting a melt into the die cavity is provided in the injection barrel, and the drive means is for driving the injection plug to move, characterized in that the metal forming apparatus further comprises the melting furnace of any one of claims 6 to 9, wherein the melting container is arranged so as to be able to place a melt formed after melting a material into the melt inlet.
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Effective date of registration: 20230828 Address after: No. 8-1 Lingshan Road, Daqi Street, Beilun District, Ningbo City, Zhejiang Province, 315000 Patentee after: Ningbo Free Trade Zone Haitian Zhisheng metal forming equipment Co.,Ltd. Address before: No. 36, Mount Huangshan South Road, Yancheng Economic Development Zone, Jiangsu Province, 224600 Patentee before: Zhang Bin |