CN218656741U - Extrusion mechanism for die casting machine - Google Patents
Extrusion mechanism for die casting machine Download PDFInfo
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- CN218656741U CN218656741U CN202222391731.6U CN202222391731U CN218656741U CN 218656741 U CN218656741 U CN 218656741U CN 202222391731 U CN202222391731 U CN 202222391731U CN 218656741 U CN218656741 U CN 218656741U
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- oil cylinder
- valve block
- die casting
- extrusion mechanism
- hydraulic control
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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Abstract
The utility model provides an extrusion mechanism for die casting machine, relates to die casting machine equipment technical field, especially relates to an extrusion mechanism that is used for horizontal cold chamber die casting machine to use. The top of the oil cylinder is connected with the inserted valve block set through a pipeline, the oil pump is connected with the motor, and the oil pump is connected with the inserted valve block set through a pipeline; the cartridge valve block group is provided with a plurality of hydraulic control valves, the hydraulic control valves are connected with pipelines for connecting the oil cylinder and the oil pump, and the oil cylinder is also provided with hydraulic control valves connected with the pipelines. The plug-in valve group is matched with the oil cylinder to provide stable pressure control, and stable power output is provided through the motor and the oil pump, so that the whole extrusion mechanism can provide continuous mechanical static pressure for a mold in the metal casting process, metal is crystallized and solidified under the pressure of the device, shrinkage cavity shrinkage porosity formed by solidification shrinkage is forcibly eliminated, the air tightness of a casting is improved, and the physical properties of the casting, such as tensile strength, are improved.
Description
Technical Field
The utility model relates to an extrusion mechanism for die-casting machine relates to die-casting machine equipment technical field, especially relates to an extrusion mechanism that is used for horizontal cold chamber die-casting machine to use.
Background
The die casting machine is a machine for pressure casting, and comprises a hot pressure chamber and a cold pressure chamber, the hot pressure chamber and the cold pressure chamber are divided into a straight type and a horizontal type, the die casting machine injects molten metal into a die to be cooled and formed under the action of pressure, and a solid metal casting can be obtained after the die is opened.
The existing die casting machine, especially the horizontal cold chamber die casting machine, is carrying out the injection in-process, the injection drift pushes away the molten metal according to predetermined speed and certain pressure, make it pass through the runner of mould, fill from the ingate and get into the mould die cavity, the filling is finished, the drift keeps certain pressure, until the molten metal solidifies completely and becomes the die casting, however, the drift is when static holding pressure, driving system only provides and maintains static power and supports, and when keeping certain drive power for a long time, the vibrations of motor can be conducted to the drift, and its pressure transmission of hydraulic pressure mechanism can be asynchronous with the vibrations of motor under the condition that only keeps certain pressure, the pause condition appears, make the pressure that the drift obtained unstable, can produce certain shrinkage cavity shrinkage porosity when making metal under pressure crystallization solidify, lead to the gas tightness of foundry goods not enough.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to defect among the prior art or not enough, provide an extrusion mechanism for die-casting machine, cooperate with the hydro-cylinder through setting up the cartridge valves, provide stable pressure control, provide stable power take off through motor and oil pump again, make whole extrusion mechanism can provide continuous mechanical static pressure to the mould in the metal casting process, make the metal solidification of crystallization under this device pressure and force to eliminate because of the shrinkage cavity shrinkage porosity that the shrink formed that solidifies, improve the gas tightness of foundry goods, improve physical properties such as tensile strength of foundry goods.
In order to achieve the above purpose, the utility model adopts the following technical scheme: the hydraulic control system comprises an oil cylinder 1, a cartridge valve block group 2, an oil pump 3 and a motor 4, wherein the top of the oil cylinder 1 is connected with the cartridge valve block group 2 through a pipeline, the oil pump 3 is connected with the motor 4, and the oil pump 3 is connected with the cartridge valve block group 2 through a pipeline; the cartridge valve block group 2 is provided with a plurality of hydraulic control valves 2-1, the hydraulic control valves 2-1 are connected with pipelines connecting the oil cylinder 1 and the oil pump 3, and the oil cylinder 1 is also provided with the hydraulic control valves 2-1 connected with the pipelines.
An energy accumulator 6 is arranged on one side of the top of the oil cylinder 1, a fastening seat 7 is connected to the tail of the oil cylinder 1, and the fastening seat 7 is connected with the injection mechanism.
The cartridge valve block group 2 is connected with a cooling device 5 through a pipeline.
The front end of the oil cylinder 1 is provided with a punch connecting seat 8, and the punch connecting seat 8 is arranged at the front end of a hydraulic rod of the oil cylinder 1.
The energy accumulator 6 stores high-pressure hydraulic oil.
After the technical scheme is adopted, the utility model discloses beneficial effect does: the plug-in valve group is matched with the oil cylinder to provide stable pressure control, and the motor and the oil pump are used for providing stable power output, so that the whole extrusion mechanism can provide continuous mechanical static pressure for a mold in the metal casting process, metal is crystallized and solidified under the pressure of the device, shrinkage cavity shrinkage porosity formed by solidification shrinkage is forcedly eliminated, the air tightness of a casting is improved, and the physical properties of the casting, such as tensile strength and the like, are improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.
Fig. 1 is a schematic structural diagram of the present invention.
Description of reference numerals: the hydraulic control system comprises an oil cylinder 1, a cartridge valve block group 2, an oil pump 3, a motor 4, a cooling device 5, an energy accumulator 6, a fastening seat 7, a punch connecting seat 8 and a hydraulic control valve 2-1.
Detailed Description
Referring to fig. 1, the technical solution adopted by the present embodiment is: the hydraulic control system comprises an oil cylinder 1, a cartridge valve block group 2, an oil pump 3 and a motor 4, wherein the top of the oil cylinder 1 is connected with the cartridge valve block group 2 through a pipeline, the oil pump 3 is connected with the motor 4, and the oil pump 3 is connected with the cartridge valve block group 2 through a pipeline; the cartridge valve block group 2 is provided with a plurality of hydraulic control valves 2-1, the hydraulic control valves 2-1 are connected with pipelines connecting the oil cylinder 1 and the oil pump 3, and the oil cylinder 1 is also provided with the hydraulic control valves 2-1 connected with the pipelines. As a more specific description, the equipment used in this embodiment mainly works in match with a horizontal cold chamber die casting machine, and the pressure obtained by an injection punch of a conventional horizontal cold chamber die casting machine when the injection punch completes injection operation and provides continuous pressure to a casting is not stable enough, so that shrinkage cavities and shrinkage porosity of the casting occur, and air tightness is not sufficient.
Furthermore, an energy accumulator 6 is arranged on one side of the top of the oil cylinder 1, a fastening seat 7 is connected to the tail of the oil cylinder 1, the fastening seat 7 is connected with the injection mechanism, high-pressure hydraulic oil is stored in the energy accumulator 6, the energy accumulator 6 has an oil supplementing effect on the oil cylinder 1 when the oil cylinder 1 is subjected to frequent reciprocating extrusion actions in the high-frequency working process, the oil cylinder 1 can be ensured to rapidly act, particularly when molten metal is filled into a cavity and is about to stop, alloy liquid begins to solidify, the advancing resistance of a punch is increased, a control valve of the energy accumulator is opened under the control of a computer program, hydraulic oil rapidly enters the cavity, a pressurizing piston and a piston rod are pushed to rapidly move leftwards, when the piston rod is jointed with the inner conical surface and the outer conical surface of the floating piston, the piston rod is cut off to form a closed cavity, and the piston is enabled to obtain a pressurizing effect by the pushing pressure of the pressurizing piston, the piston rod and the floating piston.
Furthermore, the cartridge valve block group 2 is connected with a cooling device 5 through a pipeline, the cooling device 5 is an electric heat replacement cooler, and can provide cooling for the cartridge valve block group 2 when needed, and especially after long-time work, when the temperature of the cartridge valve block group 2 is too high, the normal operation of the cartridge valve block group 2 is ensured.
Furthermore, the front end of the oil cylinder 1 is provided with a punch connecting seat 8, and the punch connecting seat 8 is arranged at the front end of a hydraulic rod of the oil cylinder 1. The punch connecting seat 8 is convenient for being connected with the injection punch, provides a certain buffering effect, and prolongs the service life of the punch and the hydraulic rod.
The utility model discloses a theory of operation: the equipment used in the implementation mainly matches with a horizontal cold chamber die casting machine for work, the front end of an oil cylinder 1 is provided with a punch connecting seat 8, the connecting seat 8 is connected with an injection punch of the die casting machine, a fastening seat 7 is connected with an injection mechanism to complete the connection of the oil cylinder 1 and the die casting machine, a required pressure value is set in a central control system according to the requirement of a casting, a hydraulic control valve 2-1 on an insert valve block group 2 can carry out on-off control on fluid in the insert valve block group, when the injection operation is completed, a hydraulic rod of the oil cylinder 1 continuously applies pressure to the injection punch, and in the forming process, metal liquid which is not solidified is crystallized, solidified and formed in a flowing mode under the action of isostatic pressure from beginning to end; the solidified metal layer is subjected to plastic deformation under pressure, has a thermal deformation structure, fine grains and uniform structure, and simultaneously the outer side of a workpiece is tightly attached to the inner wall of the mold under the pressure, so that the shape and the size of the workpiece are accurate; because the solidified layer crystallized first is plastically deformed and consumes a part of energy, the isostatic pressure of the molten metal is not constant, but is reduced along with the thickening of the solidified layer; the solid-liquid area is forcedly fed under the action of pressure, so that the defects of shrinkage cavity looseness and the like in a workpiece can be eliminated, and the mechanical property of the workpiece is improved.
The above description is only for the purpose of illustrating the technical solutions of the present invention and not for the purpose of limiting the same, and other modifications or equivalent replacements made by those of ordinary skill in the art to the technical solutions of the present invention should be covered within the scope of the claims of the present invention as long as they do not depart from the spirit and scope of the technical solutions of the present invention.
Claims (5)
1. The utility model provides an extrusion mechanism for die casting machine which characterized in that: the hydraulic control system comprises an oil cylinder (1), a cartridge valve block group (2), an oil pump (3) and a motor (4), wherein the top of the oil cylinder (1) is connected with the cartridge valve block group (2) through a pipeline, the oil pump (3) is connected with the motor (4), and the oil pump (3) is connected with the cartridge valve block group (2) through a pipeline; the hydraulic control system is characterized in that a plurality of hydraulic control valves (2-1) are arranged on the cartridge valve block group (2), the hydraulic control valves (2-1) are connected with pipelines for connecting the oil cylinder (1) and the oil pump (3), and the oil cylinder (1) is also provided with the hydraulic control valves (2-1) which are connected with the pipelines.
2. The extrusion mechanism for die casting machines according to claim 1, characterized in that: an energy accumulator (6) is arranged on one side of the top of the oil cylinder (1), a fastening seat (7) is connected to the tail of the oil cylinder (1), and the fastening seat (7) is connected with the injection mechanism.
3. The extrusion mechanism for die casting machines according to claim 1, characterized in that: the cartridge valve block group (2) is connected with a cooling device (5) through a pipeline.
4. The extrusion mechanism for die casting machines according to claim 1, characterized in that: the front end of the oil cylinder (1) is provided with a punch connecting seat (8), and the punch connecting seat (8) is arranged at the front end of a hydraulic rod of the oil cylinder (1).
5. The extrusion mechanism for die casting machines according to claim 2, characterized in that: the energy storage device (6) stores high-pressure hydraulic oil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222391731.6U CN218656741U (en) | 2022-09-09 | 2022-09-09 | Extrusion mechanism for die casting machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222391731.6U CN218656741U (en) | 2022-09-09 | 2022-09-09 | Extrusion mechanism for die casting machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218656741U true CN218656741U (en) | 2023-03-21 |
Family
ID=85559033
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222391731.6U Active CN218656741U (en) | 2022-09-09 | 2022-09-09 | Extrusion mechanism for die casting machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218656741U (en) |
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2022
- 2022-09-09 CN CN202222391731.6U patent/CN218656741U/en active Active
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