CN118080814A - Short-flow smelting-die casting integrated equipment and application method thereof - Google Patents

Short-flow smelting-die casting integrated equipment and application method thereof Download PDF

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Publication number
CN118080814A
CN118080814A CN202410089749.1A CN202410089749A CN118080814A CN 118080814 A CN118080814 A CN 118080814A CN 202410089749 A CN202410089749 A CN 202410089749A CN 118080814 A CN118080814 A CN 118080814A
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CN
China
Prior art keywords
die
die casting
material beating
component
nozzle
Prior art date
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Pending
Application number
CN202410089749.1A
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Chinese (zh)
Inventor
潘玲玲
刘乐华
刘卓铭
张涛
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
South China University of Technology SCUT
Shenzhen Leadwell Technology Co Ltd
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South China University of Technology SCUT
Shenzhen Leadwell Technology Co Ltd
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Application filed by South China University of Technology SCUT, Shenzhen Leadwell Technology Co Ltd filed Critical South China University of Technology SCUT
Priority to CN202410089749.1A priority Critical patent/CN118080814A/en
Publication of CN118080814A publication Critical patent/CN118080814A/en
Pending legal-status Critical Current

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22DCASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D17/00Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
    • B22D17/02Hot chamber machines, i.e. with heated press chamber in which metal is melted
    • B22D17/04Plunger machines
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22DCASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D17/00Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
    • B22D17/14Machines with evacuated die cavity
    • B22D17/145Venting means therefor
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22DCASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D17/00Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
    • B22D17/20Accessories: Details
    • B22D17/2015Means for forcing the molten metal into the die
    • B22D17/2038Heating, cooling or lubricating the injection unit
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22DCASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D17/00Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
    • B22D17/20Accessories: Details
    • B22D17/2015Means for forcing the molten metal into the die
    • B22D17/2053Means for forcing the molten metal into the die using two or more cooperating injection pistons

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Molds, Cores, And Manufacturing Methods Thereof (AREA)

Abstract

The invention relates to the technical field of die casting, and discloses short-process smelting-die casting integrated equipment and a using method thereof, wherein the short-process smelting-die casting integrated equipment comprises a movable die, a fixed die, a pressing chamber, a first material beating component and a second material beating component; wherein after the movable die and the fixed die are abutted together, a die casting cavity is formed in the middle; the pressure chamber is provided with a feed inlet, the side wall of the pressure chamber is provided with a melting assembly and a nozzle, and the nozzle is communicated with the die-casting cavity; the first material beating component and the second material beating component are respectively arranged at two ends of the pressing chamber and can stretch and retract along the length direction of the pressing chamber so as to support the raw materials entering the pressing chamber to the melting component area and jet the melted raw materials into the die-casting cavity through the nozzle. By adopting the short-flow smelting-die casting integrated equipment, smelting and die casting can be realized in a shorter flow, and the residual materials do not need to be taken out, so that the processing period is shortened, and the working efficiency is improved.

Description

Short-flow smelting-die casting integrated equipment and application method thereof
Technical Field
The invention relates to the technical field of die casting, in particular to short-flow smelting-die casting integrated equipment and a using method thereof.
Background
The die casting is a technology for manufacturing the constant-temperature materials by injecting molten metal into a metal mold cavity and solidifying and forming the molten metal in a high-pressure state, has the advantages of high product size precision, good compactness, high-speed continuous production and the like, is suitable for producing complex and thin-wall castings, is mainly applied to nonferrous metal casting, and has wide application in the fields of automobiles, aviation, instruments and meters and the like.
The die casting machine is the most basic equipment that also is the most core in the die casting production, and the type and the model of die casting machine are many, can divide into hot pressing chamber die casting machine and cold pressing chamber die casting machine according to the temperature state of die casting machine pressure chamber, and wherein, cold pressing chamber die casting machine divides into vertical cold pressing chamber die casting machine again according to its structural style, and full vertical cold pressing chamber die casting machine and horizontal cold pressing chamber die casting machine. The vertical cold-pressing chamber die casting machine is characterized in that: the pressing chamber and the material beating mechanism are vertically arranged, the die casting die is also vertically arranged, and the center line of the pressing chamber is parallel to the parting surface of the die. The vertical cold-pressing chamber die casting machine in the prior art is complex in structure, the die casting excess materials are difficult to take out, the working period is prolonged to a certain extent, the working efficiency of the die casting machine is reduced, the melt is exposed in the air, the impurities are more, and the performance of the die casting is reduced.
Disclosure of Invention
The invention aims to solve the technical problems, and aims to provide short-flow smelting-die casting integrated equipment and a using method thereof, which can realize smelting and die casting in a shorter flow, and the remainder is not required to be taken out, so that the processing period is shortened, and the working efficiency is improved.
In order to achieve the above object, in a first aspect, the present invention provides a short-process smelting-die casting integrated apparatus, including a movable die, a fixed die, a pressing chamber, a first material-beating assembly and a second material-beating assembly; wherein after the movable die and the fixed die are abutted together, a die casting cavity is formed in the middle; the pressure chamber is provided with a feed inlet, the side wall of the pressure chamber is provided with a melting assembly and a nozzle, and the nozzle is communicated with the die-casting cavity; the first material beating component and the second material beating component are respectively arranged at two ends of the pressing chamber and can stretch and retract along the length direction of the pressing chamber so as to support the raw materials entering the pressing chamber to the melting component area and jet the melted raw materials into the die-casting cavity through the nozzle.
Preferably, the pressing chamber is vertically arranged, the first material beating assembly is arranged at the top of the pressing chamber, the second material beating assembly is arranged at the bottom of the pressing chamber, and the melting assembly is arranged below the feeding port and above the nozzle.
Preferably, the first material beating component comprises a first material beating oil cylinder, a first piston rod and a first hammer head; the second material beating component comprises a second material beating oil cylinder, a second piston rod and a second hammer; wherein the first hammer head and the second hammer head are slidably arranged in the pressure chamber.
Preferably, a cooling cavity is formed in the second hammer head, the second hammer head is detachably connected to the second piston rod through a connecting piece, and a cooling pipe communicated with the cooling cavity is arranged in the second piston rod so as to inject cooling liquid into the cooling cavity.
Preferably, a first vacuumizing channel is arranged on the side wall of the pressure chamber, and the first vacuumizing channel is communicated with the inner cavity of the pressure chamber and is positioned below the nozzle.
Preferably, the melting assembly comprises a crucible annularly arranged on the side wall of the pressing chamber and an induction coil wound on the periphery of the crucible.
Preferably, a second vacuumizing channel communicated with the die casting cavity is arranged on the movable die.
Preferably, a heating assembly is provided at the outer circumference of the nozzle, and the heating assembly includes a crucible and an induction coil wound around the outer circumference of the crucible.
In order to achieve the above object, in a second aspect, the present invention provides a use method, using the short-flow smelting-die casting integrated apparatus as described above, comprising the steps of:
Step S1, lifting a first material beating component to a position above a feed inlet, lifting a second material beating component to a position for blocking a nozzle, wherein the upper end of the second material beating component is positioned at the bottom of a melting component, adding solid raw materials into the feed inlet, enabling a movable die to be tightly abutted against a fixed die, and starting the melting component;
Step S2, after the raw materials are melted, moving the first material beating component downwards, and when the lower end of the first material beating component contacts the melted raw materials, moving the second material beating component downwards to enable the nozzle to be opened and stay at the position, and continuously moving the first material beating component downwards to press and jet the melted raw materials into the die-casting cavity through the nozzle;
S3, after the melted raw materials enter the die-casting cavity, maintaining the pressure of the first material-beating component for a preset time under a preset pressure;
And S4, moving the first material beating component and the second material beating component upwards, pushing the residual materials to the area of the melting component, and blocking the nozzle by the second material beating component.
Preferably, a first vacuumizing channel is arranged on the side wall of the pressure chamber, the first vacuumizing channel is communicated with the inner cavity of the pressure chamber and is positioned below the nozzle, a second vacuumizing channel communicated with the die casting cavity is arranged on the movable die, and after the movable die is tightly abutted against the fixed die, the first vacuumizing channel and the second vacuumizing channel are connected with vacuumizing equipment and vacuumize.
According to the description and practice, the short-flow smelting-die casting integrated equipment is provided with the melting assembly in the pressing chamber, so that a user can directly fill solid raw materials into the pressing chamber, and after the raw materials are melted, the raw materials can be injected into the die casting cavity of the die through the material injection assembly. After the die casting operation is finished, residual materials in the pressing chamber can be returned to the melting assembly area through the material beating assembly, so that the residual materials do not need to be taken out singly in the next die casting operation, the smelting and die casting processes are mainly carried out in the pressing chamber, the whole process is shortened compared with the traditional die casting machine, the working period is shortened to a certain extent, and the die casting efficiency is improved. In addition, as the melted raw materials are not exposed in the air outside the pressure chamber in the whole process, the impurity content in the raw materials can be reduced to a certain extent, and the performance of the die casting is improved. In addition, the equipment structure is simpler, and the production cost of the die casting machine and the die is reduced.
Drawings
Fig. 1 is a schematic view showing the overall structure of a short-process smelting-die-casting integrated apparatus according to an embodiment of the present invention, in which a die and a plenum portion show their specific structures in cross-section.
Fig. 2a is a schematic view showing a structure of a mold and a plenum portion in a short-process melting-die casting integrated apparatus according to an embodiment of the present invention when melting a raw material.
Fig. 2b is a schematic structural view of a die and a plenum portion of a short-process melting-die casting integrated apparatus according to an embodiment of the present invention during die casting.
Fig. 2c is a schematic structural view of a die and a plenum portion of the short-process integrated melting-die casting apparatus according to an embodiment of the present invention when the die is opened to remove the die cast part.
Fig. 3 is a schematic structural view of a mold and a plenum portion of a short-process smelting-die casting integrated apparatus according to an embodiment of the present invention when recharging.
Fig. 4 is a schematic structural view of a mold and a plenum portion of a short-process smelting-die casting integrated apparatus according to an embodiment of the present invention when cleaning the residue.
Fig. 5 is a flow chart of the use of a short-process smelting-die casting integrated plant involved in one embodiment of the invention.
The reference numerals in the figures are:
11. frame 12 head plate 13 middle plate
14. First rabbet plate 15, second rabbet plate 16, support bar
2. A fixed die 21, a sample ejection rod 22, a first vacuumizing channel
23. Nozzle 24, feed inlet 3, moving die
31. Ejector pin 32, second vacuumizing channel 4, pressure chamber
5. Melting assembly 51, crucible 52, induction coil
6. Heating assembly 7. First Material-beating assembly 71. First Material-beating oil cylinder
72. First piston rod 73, first hammer head 8, second material beating component
81. A second material-beating cylinder 82, a second piston rod 83, a second hammer
91. Cooling chamber 92, cooling tube 93, connector
Detailed Description
Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, the exemplary embodiments may be embodied in many forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the exemplary embodiments to those skilled in the art. The described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.
Furthermore, the drawings are merely schematic illustrations of the present disclosure and are not necessarily drawn to scale. The same reference numerals in the drawings denote the same or similar parts, and thus a repetitive description thereof will be omitted. In the present disclosure, the terms "comprising," "including," "having," "disposed in" and "having" are intended to be open-ended and mean that there may be additional elements/components/etc. in addition to the listed elements/components/etc.; the terms "first," "second," and the like, are used merely as labels, and do not limit the number or order of their objects; the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," and the like refer to an orientation or positional relationship based on that shown in the drawings, merely for convenience of description and to simplify the description, and do not denote or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus are not to be construed as limiting the invention.
Unless specifically stated or limited otherwise, the terms "mounted," "connected," and "coupled" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
In this embodiment, a short-flow smelting-die casting integrated apparatus is first disclosed, which can smelt raw materials and press the smelted liquid raw materials into a die to complete die casting operation. Referring to fig. 1 to 4, the short-process smelting-die casting integrated apparatus in this embodiment mainly includes: the die casting die, the pressing chamber 4, the first material beating component 7 and the second material beating component 8 are formed by the movable die 3 and the fixed die 2. After the movable die 3 and the fixed die 2 are abutted together, a die casting cavity is formed in the middle, and when in use, raw materials in a liquid state are injected into the die casting cavity and maintained for a preset time under a preset pressure until condensation molding is performed, so that a required die casting is formed.
A charging port 24 is provided in the pressure chamber 4, and a user can charge the pressure chamber 4 with a raw material for die casting through the charging port 24. In the side wall of the pressure chamber 4 there are provided a melting assembly 5 and a nozzle 23, wherein the nozzle 23 communicates with the die casting cavity. The melting assembly 5 is used for melting solid raw materials into a liquid state, and then the liquid raw materials can be injected into the die-casting cavity through the nozzle 23 and the material-beating assembly. The first and second material beating components 7 and 8 are separately arranged at two ends of the pressing chamber 4 and can stretch and retract along the length direction of the pressing chamber 4 so as to support the raw materials entering the pressing chamber 4 to the area of the melting component 5 and press the melted raw materials into the die casting cavity through the nozzle 23, thus completing the die casting operation.
According to the short-flow smelting-die casting integrated equipment, the melting assembly 5 is arranged in the pressing chamber 4, a user can directly fill solid raw materials into the pressing chamber 4, after the raw materials are melted, the raw materials can be injected into the die casting cavity of the die through the material injection assembly, after the die casting operation is finished, residual materials remained in the pressing chamber 4 can be returned to the area of the melting assembly 5 through the material injection assembly for the next die casting operation, the residual materials are not required to be taken out independently, the smelting and die casting processes are mainly carried out in the pressing chamber 4, the whole flow is shortened compared with the traditional die casting machine, the working period is shortened to a certain extent, and the die casting efficiency is improved. In addition, as the melted raw materials are not exposed in the air outside the pressing chamber 4 in the whole process, the impurity content in the raw materials can be reduced to a certain extent, and the performance of the die casting is improved.
As shown in fig. 1 and 2a, in this embodiment, the pressing chamber 4 is vertically arranged, its center line is parallel to the parting plane of the mold, the first material beating assembly 7 is arranged at the top of the pressing chamber 4, the second material beating assembly 8 is arranged at the bottom of the pressing chamber 4, and the melting assembly 5 is arranged below the charging opening 24 and above the nozzle 23. Because the pressing chamber 4 is of a vertical structure, raw materials filled from the charging port 24 can automatically fall down, and can be positioned in the area of the melting assembly 5 by the support of the second beating assembly 8 below, and can be melted into a liquid state from a solid state under the action of the melting assembly 5. Furthermore, the vertically arranged press chambers 4 have a small footprint and are advantageous for preventing impurities from entering the die casting cavity of the die. In other embodiments, the setting angle of the pressing chamber 4 can be adjusted by itself according to the site conditions, such as inclination or horizontal prevention, and accordingly, after the raw materials are filled, the raw materials can be located in the area of the melting assembly 5 through the cooperation of the first material beating assembly 7 and the second material beating assembly 8, so that melting is realized.
In this embodiment, the pressing chamber 4 and the fixed mold 2 in the mold are integrally formed, in other words, the pressing chamber 4 is formed inside the fixed mold 2, which can further reduce the volume of the entire apparatus. Of course, in other embodiments, the pressure chamber 4 and the fixed mold 2 may be separate structures, so that the fixed mold 2 is provided with a nozzle 23 for communicating the pressure chamber 4 with the die-casting cavity.
When the short-flow smelting-die casting integrated equipment is used, the short-flow smelting-die casting integrated equipment mainly comprises the processes of raw material filling, raw material melting, die casting and die opening. Specifically, please refer to fig. 2a to 2c and fig. 5, the usage method mainly includes the following steps:
Step S1, lifting the first material beating component 7 to the position above the feeding hole 24, lifting the second material beating component 8 to the position for blocking the nozzle 23, and enabling the upper end to be positioned at the bottom of the melting component 5, adding solid raw materials into the feeding hole 24, enabling the movable die 3 to be tightly abutted against the fixed die 2, and starting the melting component 5. In this step, the raw material can be heated and melted into a liquid state in the area of the melting assembly 5, so that the subsequent die casting operation is facilitated.
Step S2, after the raw materials are melted, the first material beating component 7 is moved down, when the lower end of the first material beating component 7 contacts the melted raw materials, the second material beating component 8 is moved down to enable the nozzle 23 to be opened and to stay at the position, and the first material beating component 7 is continuously moved down to press and jet the melted raw materials into the die casting cavity through the nozzle 23.
And S3, after the melted raw materials enter the die-casting cavity, the first material-beating component 7 is kept for a preset time under a preset pressure until the die-casting is formed by condensation. The preset pressure and the preset time of the pressure sensor are required to be set according to parameters such as the material, the size and the like of the die castings, and a user can correspondingly modify the preset pressure and the preset time aiming at different die castings so as to ensure that the die castings have better performance.
Step S4, the first material beating component 7 and the second material beating component 8 are moved upwards, the residual materials are jacked to the area of the melting component 5, and meanwhile, the second material beating component 8 seals the nozzle 23. In this step, the second knockout assembly 8 can disconnect the handle from the remainder when moved up, so that the handle in the die casting and the nozzle 23 can be moved out during the subsequent die sinking. When the die 3 is moved left, as shown in fig. 2c, the die casting is usually moved left together with it. In addition, in the step, the residual materials are ejected into the area of the melting assembly 5 by the second material-ejecting assembly 8 and then can be used for the next die-casting operation, so that the step of taking out the residual materials in the traditional die-casting machine is omitted.
By the method, smelting and die casting can be realized in a short flow, and the residual materials do not need to be taken out, so that the processing period is shortened, and the working efficiency is improved.
Further, in this embodiment, the first material beating assembly 7 comprises a first material beating cylinder 71, a first piston rod 72 and a first hammer head 73, and the second material beating assembly 8 comprises a second material beating cylinder 81, a second piston rod 82 and a second hammer head 83. The first and second hammer heads 73 and 83 are slidably disposed in the pressure chamber 4. The material beating component adopts the hydraulic oil cylinder as a power source, has better stability and can meet the die casting operation under higher pressure. In other embodiments, an electric telescopic rod can be used to drive the front end hammer head to serve as a material beating component, and die casting operation with certain pressure can be realized.
Further, in this embodiment, since the second material-beating member 8 also has a function of supporting the raw material, the high-temperature raw material is brought into contact with the second hammer head 83 when the raw material is melted, the cooling chamber 91 is formed in the second hammer head 83, and the second hammer head 83 is prevented from being melted by injecting the cooling liquid such as the cooling water or the like into the cooling chamber. Specifically, the second ram 83 is detachably connected to the second piston rod 82 via a connecting member 93, and a cooling pipe 92 communicating with the cooling chamber 91 is provided in the second piston rod 82 to inject the cooling liquid into the cooling chamber 91. As shown in fig. 2a, the cooling pipe 92 penetrates through the second piston rod 82 and the connecting piece 93 up to the cooling cavity 91 in the second hammer 83, and when in use, the cooling liquid is injected into the cooling cavity 91 through the cooling pipe 92 at a certain speed, so that the second hammer 83 is prevented from being melted, and the melting operation of the raw materials is not affected significantly. The connector 93 may employ an existing connecting member such as a bolt.
In addition, in this embodiment, a first evacuation channel 22 is provided in the side wall of the pressure chamber 4, the first evacuation channel 22 being in communication with the inner cavity of the pressure chamber 4 and being located below the nozzle 23. When the second hammer 83 moves up to block the nozzle 23, it is connected to the first vacuumizing channel 22 through a vacuumizing device, so as to perform vacuumizing operation in the area below the second hammer 83 in the pressing chamber 4, so as to remove impurities in the area of the pressing chamber 4, and prevent the impurities from entering the liquid raw material.
Similarly, be equipped with on movable mould 3 with the second evacuation passageway 32 of die casting chamber intercommunication, before the die casting operation, connect on this second evacuation passageway 32 through evacuating equipment, can carry out the evacuation operation to the die casting intracavity to remove impurity wherein, be favorable to preventing impurity entering die casting in, influence the performance of die casting. Through setting up these two evacuation passageway, can reduce the impurity content of molten metal, promote the product quality of die casting.
In addition, in this embodiment, a heating element 6 is provided on the outer periphery of the nozzle 23 for heating the material shank in the nozzle 23. When the die casting machine is used for die casting harder metal, before die sinking, the second hammer 83 is not easy to break the residual material and the material handle when moving upwards, and at the moment, the heating assembly 6 can be started to heat and soften the metal of the material handle part, so that the second hammer 83 can break the residual material and the material handle relatively easily.
In this embodiment, the melting assembly 5 and the heating assembly 6 each include a ring-shaped crucible 51 and an induction coil 52 wound around the outer periphery of the crucible 51. Wherein a crucible 51 in the melting assembly 5 is provided in the side wall of the press chamber 4 to melt the solid raw material in the press chamber 4. In other embodiments, melting assembly 5 and heating assembly 6 may also utilize other prior art techniques such as electrical heating to melt or heat the feedstock, as well as to achieve the above-described functions.
Referring to fig. 1, in this embodiment, the short-process smelting-die-casting integrated apparatus is mounted on a frame 11, and a head plate 12 and a middle plate 13 are provided in the middle of the frame 11, the head plate 12 being fixedly disposed, and the middle plate 13 being slidably disposed. The fixed die 2 is fixedly arranged on the head plate 12, the movable die 3 is fixedly arranged on the middle plate 13, and the die opening and the die closing are realized through the sliding of the middle plate 13. A first rabbet plate 14 is fixedly arranged at the top of the frame 11, the first rabbet plate 14 is fixedly connected with the head plate 12 through a supporting rod 16, and a second rabbet plate 15 is arranged at the bottom of the frame 11. The first material-beating cylinder 71 is fixedly installed on the first rabbet plate 14, and the first piston rod 72 and the first hammer 73 face the downward pressing chamber 4. The second material beating cylinder 81 is fixedly arranged on the second rabbet plate 15, and the second piston rod 82 and the second hammer 83 face to the upper pressing chamber 4. It should be noted that, the structures of the frame 11, the head plate 12, the middle plate 13, the first rabbet plate 14, the second rabbet plate 15, the support rod 16 and the like aim to provide a fixed and movable platform for the mold and the material beating component, in practical application, a user can set the relevant fixed and movable platform by himself according to the environmental conditions of the equipment, so as to ensure that the fixed mold 2, the material beating component and the sliding of the movable mold 3 can be realized.
In addition, a thimble 31 is slidably arranged in the movable die 3, one end of the thimble 31 is connected with the driving mechanism, the other end faces the die-casting cavity, and after the die-casting is opened, if the die-casting is adhered to the movable die 3, the thimble 31 can be started to push the die-casting up and down from the movable die 3.
Similarly, a sample ejection lever 21 is slidably provided in the stationary mold 2, opposite to the nozzle 23, and slidable in the longitudinal direction of the nozzle 23. One end of the sample ejection rod 21 is connected with the driving mechanism, and the other end of the sample ejection rod can move into the nozzle 23 under the driving of the driving mechanism. When the die is opened, if the die casting is adhered to the fixed die 2, the sample ejection rod 21 can be started to eject the material handle from the nozzle 23, and correspondingly, the die casting can fall from the fixed die 2 together.
In a specific embodiment, the short-process smelting-die casting integrated equipment comprises the following steps of:
Step S1, the first piston rod 72 in the first material beating assembly 7 is moved up, so that the first hammer head 73 is lifted above the charging hole 24, the second piston rod 82 in the second material beating assembly 8 is moved up, so that the second hammer head 83 is lifted to a position for blocking the nozzle 23, and the upper end of the second hammer head 83 is located at the bottom of the melting assembly 5, i.e. the position shown in fig. 2 a. Solid feed material is introduced into the feed port 24 and falls into the region of the melting assembly 5, after which the melting assembly 5 is activated to melt the feed material to a liquid state.
In this step, the mold clamping may be performed simultaneously, so that the movable mold 3 is abutted against the fixed mold 2. After the movable die 3 is tightly abutted against the fixed die 2, the first vacuumizing channel 22 and the second vacuumizing channel 32 are connected with vacuumizing equipment, and vacuumizing operation is performed to remove impurities in the die casting cavity and part of the pressure chamber 4.
In addition, in this step, at the time of the smelting operation, a cooling liquid is injected into the cooling chamber 91 of the second hammer 83 at a predetermined speed to prevent the second hammer 83 from being melted. The preset speed can be set according to the material of the smelted raw material and the material of the second hammer 83, so that the second hammer 83 is ensured not to be melted and the smelting operation is not affected obviously.
In step S2, after the raw materials are melted, the first material-beating cylinder 71 is started, so that the first piston rod 72 drives the first hammer 73 to move downwards, when the lower end of the first hammer 73 contacts the melted raw materials, the second material-beating cylinder 81 is started, so that the second piston rod 82 drives the second hammer 83 to move downwards, and after the nozzle 23 is opened, the second hammer 83 stays at the position. The first ram 73 is then continuously moved down to inject the melted raw material into the die casting cavity through the nozzle 23.
Step S3, after the raw material after melting enters the die-casting cavity, the first material-beating component 7 maintains the pressure for a preset time under a preset pressure, that is, the first hammer 73 is continuously maintained in a pressing state, so that the liquid raw material in the die-casting cavity is under a certain pressure, and finally, a solid die-casting can be formed, and the performance of the die-casting can be improved.
The preset pressure and the preset time of the pressure sensor are required to be set according to parameters such as the material, the size and the like of the die castings, and a user can correspondingly modify the preset pressure and the preset time aiming at different die castings so as to ensure that the die castings have better performance.
Step S4, the first hammer head 73 and the second hammer head 83 are moved upwards, wherein when the second hammer head 83 is moved upwards, the residual materials are broken away from the material handle and are ejected to the area of the melting assembly 5, and meanwhile, the second hammer head 83 also can block the nozzle 23. The die-casting piece in the die-casting cavity can be taken out by moving the movable die 3.
The excess material that has entered the area of the melting assembly 5 can be used directly for the next die casting operation, as shown in fig. 3, in which state the pressure chamber 4 can be replenished again with raw material via the charging opening 24, the new raw material being used together with the excess material for the next die casting operation.
In addition, when the second hammer 83 is moved upwards, if the hardness of the raw material is high, the heating assembly 6 can be started at the same time to soften the material handle, so that the second hammer 83 can break the residual material from the material handle conveniently.
When the die casting operation is terminated or the die casting raw material needs to be replaced, as shown in fig. 4, the first hammer 73 and the second hammer 83 may be continuously moved upward to separate the first hammer 73 from the pressing chamber 4, and the second hammer 83 may eject the remainder from the upper end of the pressing chamber 4, so as to implement the function of cleaning the remainder.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims (10)

1. The short-flow smelting-die casting integrated equipment is characterized by comprising a movable die, a fixed die, a pressing chamber, a first material beating component and a second material beating component; wherein the method comprises the steps of
After the movable die and the fixed die are abutted together, a die casting cavity is formed in the middle;
the pressure chamber is provided with a feed inlet, the side wall of the pressure chamber is provided with a melting assembly and a nozzle, and the nozzle is communicated with the die-casting cavity;
The first material beating component and the second material beating component are respectively arranged at two ends of the pressing chamber and can stretch and retract along the length direction of the pressing chamber so as to support the raw materials entering the pressing chamber to the melting component area and jet the melted raw materials into the die-casting cavity through the nozzle.
2. The short-process smelting-die casting integrated apparatus of claim 1, wherein,
The pressing chamber is vertically arranged, the first material beating component is arranged at the top of the pressing chamber, the second material beating component is arranged at the bottom of the pressing chamber, and the melting component is arranged below the feeding port and above the nozzle.
3. The short-process smelting-die casting integrated apparatus of claim 2, wherein,
The first material beating component comprises a first material beating oil cylinder, a first piston rod and a first hammer;
the second material beating component comprises a second material beating oil cylinder, a second piston rod and a second hammer; wherein the method comprises the steps of
The first hammer head and the second hammer head are slidably arranged in the pressure chamber.
4. The short-process smelting-die casting integrated apparatus of claim 3, wherein,
The second hammer head is detachably connected to the second piston rod through a connecting piece, and a cooling pipe communicated with the cooling cavity is arranged in the second piston rod so as to inject cooling liquid into the cooling cavity.
5. The short-process smelting-die casting integrated apparatus of claim 2, wherein,
The side wall of the pressure chamber is provided with a first vacuumizing channel which is communicated with the inner cavity of the pressure chamber and is positioned below the nozzle.
6. The short-process smelting-die casting integrated apparatus of claim 1, wherein,
The melting assembly comprises a crucible which is annularly arranged on the side wall of the pressing chamber and an induction coil which is wound on the periphery of the crucible.
7. The short-process smelting-die casting integrated apparatus of claim 1, wherein,
And a second vacuumizing channel communicated with the die-casting cavity is arranged on the movable die.
8. The short-process smelting-die casting integrated apparatus of any one of claims 1 to 7, characterized in that,
The periphery of the nozzle is provided with a heating component, and the heating component comprises a crucible and an induction coil wound on the periphery of the crucible.
9. A method of use employing the short-process integrated smelting-die casting apparatus of any one of claims 2-8, comprising the steps of:
Step S1, lifting a first material beating component to a position above a feed inlet, lifting a second material beating component to a position for blocking a nozzle, wherein the upper end of the second material beating component is positioned at the bottom of a melting component, adding solid raw materials into the feed inlet, enabling a movable die to be tightly abutted against a fixed die, and starting the melting component;
Step S2, after the raw materials are melted, moving the first material beating component downwards, and when the lower end of the first material beating component contacts the melted raw materials, moving the second material beating component downwards to enable the nozzle to be opened and stay at the position, and continuously moving the first material beating component downwards to press and jet the melted raw materials into the die-casting cavity through the nozzle;
S3, after the melted raw materials enter the die-casting cavity, maintaining the pressure of the first material-beating component for a preset time under a preset pressure;
And S4, moving the first material beating component and the second material beating component upwards, pushing the residual materials to the area of the melting component, and blocking the nozzle by the second material beating component.
10. The method of claim 9, wherein,
The side wall of the pressing chamber is provided with a first vacuumizing channel which is communicated with the inner cavity of the pressing chamber and is positioned below the nozzle, the movable die is provided with a second vacuumizing channel which is communicated with the die casting cavity, and after the movable die is tightly abutted against the fixed die, the first vacuumizing channel and the second vacuumizing channel are connected with vacuumizing equipment and vacuumize.
CN202410089749.1A 2024-01-22 2024-01-22 Short-flow smelting-die casting integrated equipment and application method thereof Pending CN118080814A (en)

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CN202410089749.1A CN118080814A (en) 2024-01-22 2024-01-22 Short-flow smelting-die casting integrated equipment and application method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202410089749.1A CN118080814A (en) 2024-01-22 2024-01-22 Short-flow smelting-die casting integrated equipment and application method thereof

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Publication Number Publication Date
CN118080814A true CN118080814A (en) 2024-05-28

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