CN114192756A - Piston casting mould cooling system and piston casting equipment - Google Patents
Piston casting mould cooling system and piston casting equipment Download PDFInfo
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- CN114192756A CN114192756A CN202111533876.9A CN202111533876A CN114192756A CN 114192756 A CN114192756 A CN 114192756A CN 202111533876 A CN202111533876 A CN 202111533876A CN 114192756 A CN114192756 A CN 114192756A
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- cooling
- vortex tube
- cooling system
- piston
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D27/00—Treating the metal in the mould while it is molten or ductile ; Pressure or vacuum casting
- B22D27/04—Influencing the temperature of the metal, e.g. by heating or cooling the mould
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Abstract
The invention discloses a piston casting die cooling system which comprises an air compressor, a vortex tube, a control valve group and a controller, wherein an output port of the air compressor is communicated with a gas inlet of the vortex tube, a low-temperature gas outlet of the vortex tube is connected with a gas inlet of the control valve group, a gas outlet of the control valve group is connected with a cooling runner inlet of a casting die, and the controller is in communication connection with the control valve group so as to control low-temperature compressed gas generated by the vortex tube to enter the cooling runner of the casting die. The cooling speed is increased, and the metallographic structure grade of the head of the piston blank is further increased. Effectively avoid the corruption and the seepage of cooling water to the mould, promote production efficiency, reduce manufacturing cost height promotes the wholeness ability, and compressed gas can also reuse, has saved workshop manufacturing cost to a certain extent. The invention also discloses a piston casting device comprising the piston casting die cooling system.
Description
Technical Field
The invention relates to the field of piston machining, in particular to a cooling system of a piston casting mold. The invention further relates to a piston casting device comprising the system.
Background
In the process of casting the piston by using the casting mold, the casting mold needs to be cooled, cooling water is introduced into each component of the casting mold in the current cooling mode, the water temperature is above 25 ℃, heat on the mold is taken away through the cooling water, and the purpose of rapidly cooling the mold is finally achieved.
Generally, the faster the casting is cooled, the shorter the solidification time, and accordingly, the denser the material structure obtained, and the better the performance. However, due to the limitation of the mold structure, the pipe diameter of the cooling water channel inside the mold cannot be designed to be too large, and the temperature of the cooling water is generally above 25 ℃, which finally results in the limitation of the cooling speed of the whole mold system. Because the cooling capacity of the die is insufficient, the blank solidification time is longer, and the metallographic structure grade of the head of the piston blank is not high. When a cooling pipeline of the system is blocked or leaked, the blockage or leakage is not easy to find, the manual inspection process consumes time, the mold sealing system used for a long time is aged, and the mold is easy to seep outwards during working, so that potential safety hazards exist.
Therefore, how to provide a stable and efficient piston casting mold cooling system is a technical problem to be solved by those skilled in the art.
Disclosure of Invention
The invention aims to provide a piston casting mold cooling system, which uses low-temperature gas generated by a vortex tube to replace cooling water, improves the cooling speed, further improves the grade of a metallographic structure of the head of a piston blank, improves the production efficiency, and reduces the manufacturing cost. It is another object of the present invention to provide a piston casting apparatus including the above system.
In order to solve the technical problem, the invention provides a piston casting mold cooling system which comprises an air compressor, a vortex tube, a control valve group and a controller, wherein an output port of the air compressor is communicated with a gas inlet of the vortex tube, a low-temperature gas outlet of the vortex tube is connected with a gas inlet of the control valve group, a gas outlet of the control valve group is connected with a cooling runner inlet of a casting mold, and the controller is in communication connection with the control valve group so as to control low-temperature compressed gas generated by the vortex tube to enter the cooling runner of the casting mold.
Preferably, the control valve group comprises a low-temperature one-way valve, a controllable throttle valve and an electromagnetic switch valve which are sequentially connected in series, wherein an inlet of the low-temperature one-way valve is connected with a low-temperature gas outlet of the vortex tube and allows low-temperature compressed gas to flow into the controllable throttle valve, and an outlet of the electromagnetic switch valve is connected with a cooling runner inlet of the casting mold.
Preferably, the casting mold comprises a plurality of control valve groups which are arranged in parallel, the low-temperature check valve of each control valve group is simultaneously connected with the vortex tube, and the electromagnetic switch valve of each control valve group is respectively connected with a plurality of cooling flow passage inlets of the casting mold.
Preferably, the casting mold comprises an inner mold cooling mechanism, a shaft pin cooling mechanism, an outer mold cooling mechanism and a mold cover cooling mechanism, wherein cooling channels are arranged in each cooling mechanism and are respectively connected with the four control valve groups.
Preferably, flow detection meters are arranged at outlets of cooling channels of the cooling mechanisms of the casting mold, and the flow detection meters are in communication connection with the controller.
Preferably, a constant pressure valve is arranged at a low-temperature gas outlet of the vortex tube.
Preferably, a high-temperature gas outlet of the vortex tube is connected with an energy accumulator, and a high-temperature one-way valve is arranged between the vortex tube and the energy accumulator.
Preferably, a cooling flow passage outlet of the casting mold is connected with the energy accumulator, and an exhaust gas one-way valve is arranged between the casting mold and the energy accumulator.
Preferably, an overflow valve is arranged at the inlet of the accumulator.
The invention provides piston casting equipment which comprises a casting mold and a piston casting mold cooling system connected with the casting mold, wherein the piston casting mold cooling system is specifically any one of the piston casting mold cooling systems.
The invention provides a piston casting die cooling system which comprises an air compressor, a vortex tube, a control valve group and a controller, wherein an output port of the air compressor is communicated with a gas inlet of the vortex tube, a low-temperature gas outlet of the vortex tube is connected with a gas inlet of the control valve group, a gas outlet of the control valve group is connected with a cooling runner inlet of a casting die, and the controller is in communication connection with the control valve group so as to control low-temperature compressed gas generated by the vortex tube to enter the cooling runner of the casting die.
The low-temperature gas generated by the vortex tube replaces cooling water, flows in the cooling flow channel to cool the casting mold, and controls the flow, pressure and ventilation time of the low-temperature compressed gas through the control valve group, so that the cooling speed is increased, and the metallographic structure grade of the head of the piston blank is further increased. Effectively avoid the corruption and the seepage of cooling water to the mould, promote production efficiency, reduce manufacturing cost height promotes the wholeness ability, and compressed gas can also reuse, has saved workshop manufacturing cost to a certain extent.
The present invention also provides a piston casting apparatus including a piston casting mold cooling system, which has the same technical effects as the above-described system, and thus will not be described in detail herein.
Drawings
Fig. 1 is a schematic diagram of an embodiment of a piston casting mold cooling system according to the present invention.
Detailed Description
The core of the invention is to provide a piston casting mold cooling system, which uses low-temperature gas generated by a vortex tube to replace cooling water, improves the cooling speed, further improves the grade of a metallographic structure of the head of a piston blank, improves the production efficiency, and reduces the manufacturing cost. Another core of the present invention is to provide a piston casting apparatus comprising the above system.
In order that those skilled in the art will better understand the disclosure, the invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Referring to fig. 1, fig. 1 is a schematic diagram of an embodiment of a cooling system for a piston casting mold according to the present invention.
The invention provides a piston casting mold cooling system, which comprises an air compressor 1, a vortex tube 2, a control valve group 3 and a controller 4, wherein the vortex tube 2 consists of a nozzle, a vortex chamber, a separation orifice plate and a cold-hot end tube, an inlet, a low-temperature gas outlet and a high-temperature gas outlet are arranged on the vortex tube 2, compressed gas generated by the air compressor 1 during working enters the nozzle from the gas inlet of the vortex tube 2, expands in the nozzle and then enters the vortex chamber at a high speed along a tangential direction, the gas flow is separated into two gas flows with unequal temperatures after vortex conversion when rotating at a high speed in the vortex chamber, cold air after separation flows out from the low-temperature gas outlet of the cold end tube, and hot gas flows out from the high-temperature gas outlet of the hot end tube. The temperature and the flow of the cold air flow can be controlled by adjusting a valve, the vortex tube 2 uses filtered industrial compressed air, the operation is reliable, the maintenance is free, the vortex tube is durable, and the air flow with the temperature from minus 40 ℃ to plus 110 ℃ can be generated.
The output port of the air compressor 1 is communicated with the gas inlet of the vortex tube 2, the low-temperature gas outlet of the vortex tube 2 is connected with the gas inlet of the control valve group 3, the gas outlet of the control valve group 3 is connected with the cooling runner inlet of the casting mold 5, and the controller 4 is in communication connection with the control valve group 3 so as to control the low-temperature compressed gas generated by the vortex tube 2 to enter the cooling runner of the casting mold 5 through the control valve group 3.
The low-temperature gas generated by the vortex tube 2 is used for replacing cooling water, the low-temperature gas flows in the cooling flow channel to cool the casting mold 5, the flow, the pressure and the ventilation time of the low-temperature compressed gas are controlled through the control valve group 3, the temperature of the low-temperature gas generated by the vortex tube 2 is far lower than that of the cooling water, even reaches-40 ℃, and is a low temperature which can not be reached by normal cooling water, so that the cooling speed is increased, and the metallographic structure grade of the head of the piston blank is further improved. Effectively avoid the corruption and the seepage of cooling water to the mould, promote production efficiency, reduce manufacturing cost height promotes the wholeness ability, and compressed gas can also reuse, has saved workshop manufacturing cost to a certain extent.
Specifically, the control valve group 3 comprises a low-temperature one-way valve 31, a controllable throttle valve 32 and an electromagnetic switch valve 33 which are sequentially connected in series, wherein an inlet of the low-temperature one-way valve 31 is connected with a low-temperature gas outlet of the vortex tube 2 and allows low-temperature compressed gas to flow into the controllable throttle valve 32 to prevent the low-temperature compressed air from flowing backwards, and an outlet of the electromagnetic switch valve 33 is connected with a cooling runner inlet of the casting mold 5. The controller 4 controls the opening and closing of the electromagnetic switch valve 33, when the electromagnetic switch valve 33 is closed, low-temperature compressed air is isolated, when the electromagnetic switch valve 33 is conducted, low-temperature compressed air generated by the vortex tube 2 sequentially passes through the low-temperature one-way valve 31, the controllable throttle valve 32 and the electromagnetic switch valve 33 to enter a cooling runner of the casting mold 5, the controller 4 can also control the flow of the controllable throttle valve 32, and the controller 4 controls the ventilation time and flow according to process requirements in the working process to realize accurate control.
Further, in order to ensure the cooling effect, a plurality of cooling flow channels are arranged on the casting mold 5, a plurality of control valve sets 3 connected in parallel can be arranged, the low-temperature check valve 31 of each control valve set 3 is simultaneously connected with the vortex tube 2, and the electromagnetic switch valve 33 of each control valve set 3 is respectively connected with a plurality of cooling flow channel inlets of the casting mold 5. And the independent control of the cooling compressed gas in each cooling flow channel can be realized, and the process requirements are met.
Specifically, the casting mold 5 includes an inner mold cooling mechanism 51, a shaft pin cooling mechanism 52, an outer mold cooling mechanism 53 and a mold cover cooling mechanism 54, and each cooling mechanism is provided therein with a cooling flow channel respectively connected to the four control valve sets 3. And a larger number of cooling channels can be arranged according to the situation, and the corresponding control valve group 3 is correspondingly arranged.
On the basis of the cooling system of the piston casting mold provided by each specific embodiment, the high-temperature gas outlet of the vortex tube 2 is connected with the energy accumulator 8, so that high-temperature compressed gas synchronously generated by the vortex tube 2 enters the energy accumulator 8 to be stored, the high-temperature check valve 9 is arranged between the vortex tube 2 and the energy accumulator 8, and the high-temperature check valve 9 allows the high-temperature compressed gas to flow into the energy accumulator 8 from the vortex tube 2 to prevent the high-temperature compressed gas from flowing back. Furthermore, a cooling runner outlet of the casting mold 5 is connected with the energy storage device 8, so that cooled compressed gas can also enter the energy storage device 8 to be stored, a waste gas one-way valve 10 is arranged between the casting mold 5 and the energy storage device 8, and the waste gas one-way valve 10 allows cooled waste gas to flow into the energy storage device 8 from the casting mold 5 to prevent the waste gas from flowing back. The compressed gas collected by the energy storage 8 at the tail end of the system can be reused, so that the production cost of a workshop is saved to a certain extent.
Preferably, an overflow valve 11 is provided at the inlet of the accumulator 8 to ensure that the pressure in the system and the accumulator 8 is always within safe values.
In addition to the above piston casting mold cooling system, a piston casting apparatus including the above piston casting mold cooling system is provided in the embodiments of the present invention, and the structure of other parts of the piston casting apparatus is referred to the prior art and is not described herein again.
The piston casting mold cooling system and the piston casting apparatus provided by the present invention are described in detail above. The principles and embodiments of the present invention are explained herein using specific examples, which are presented only to assist in understanding the method and its core concepts. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.
Claims (10)
1. The utility model provides a piston casting die utensil cooling system, its characterized in that, includes air compressor (1), vortex tube (2), valve unit (3) and controller (4), the delivery outlet intercommunication of air compressor (1) the gas inlet of vortex tube (2), the gaseous exit linkage of low temperature of vortex tube (2) the air inlet of valve unit (3), the cooling runner import of casting die utensil (5) is connected to the gas outlet of valve unit (3), controller (4) communication connection valve unit (3), in order to control the gaseous entering of low temperature compression that vortex tube (2) produced the cooling runner of casting die utensil (5).
2. Piston casting mold cooling system according to claim 1, characterized in that the control valve group (3) comprises a low temperature check valve (31), a controllable throttle valve (32) and an electromagnetic on-off valve (33) in series in sequence, the inlet of the low temperature check valve (31) is connected to the low temperature gas outlet of the vortex tube (2) and allows low temperature compressed gas to flow into the controllable throttle valve (32), the outlet of the electromagnetic on-off valve (33) is connected to the cooling runner inlet of the casting mold (5).
3. Piston casting mold cooling system according to claim 2, characterized by comprising a plurality of said control valve groups (3) arranged in parallel, said low temperature check valve (31) of each said control valve group (3) being connected simultaneously to said vortex tube (2), said electromagnetic on-off valve (33) of each said control valve group (3) being connected respectively to a plurality of cooling flow channel inlets of said casting mold (5).
4. A piston casting mould cooling system according to claim 3, characterised in that the casting mould (5) comprises an inner mould cooling mechanism (51), a pin cooling mechanism (52), an outer mould cooling mechanism (53) and a mould cover cooling mechanism (54), each cooling mechanism having a cooling flow channel therein, to which four control valve blocks (3) are connected, respectively.
5. Piston casting mould cooling system according to claim 4, characterised in that flow meters (6) are provided at the cooling flow outlet of each cooling means of the casting mould (5), each flow meter (6) being communicatively connected to the controller (4).
6. Piston casting mould cooling system according to claim 1, characterized in that the low temperature gas outlet of the vortex tube (2) is provided with a constant pressure valve (7).
7. A piston casting mould cooling system according to any of the claims 1 to 6, characterized in that the high temperature gas outlet of the vortex tube (2) is connected with an accumulator (8), and a high temperature check valve (9) is arranged between the vortex tube (2) and the accumulator (8).
8. Piston casting die cooling system according to claim 7, characterised in that the cooling flow channel outlet of the casting die (5) is connected to the energy accumulator (8), and that an exhaust gas non-return valve (10) is arranged between the casting die (5) and the energy accumulator (8).
9. Piston casting mould cooling system according to claim 8, characterised in that an overflow valve (11) is provided at the inlet of the energy accumulator (8).
10. Piston casting installation comprising a casting mould (5) and a piston casting mould cooling system connecting the casting mould (5), characterised in that the piston casting mould cooling system is embodied as a piston casting mould cooling system according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111533876.9A CN114192756B (en) | 2021-12-15 | 2021-12-15 | Piston casting mold cooling system and piston casting equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111533876.9A CN114192756B (en) | 2021-12-15 | 2021-12-15 | Piston casting mold cooling system and piston casting equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114192756A true CN114192756A (en) | 2022-03-18 |
| CN114192756B CN114192756B (en) | 2023-07-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202111533876.9A Active CN114192756B (en) | 2021-12-15 | 2021-12-15 | Piston casting mold cooling system and piston casting equipment |
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Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0933153A1 (en) * | 1998-01-29 | 1999-08-04 | Volkswagen Aktiengesellschaft | Mould for producing castings |
| JP2002205325A (en) * | 2001-01-11 | 2002-07-23 | Canon Inc | Injection mold |
| CN101121193A (en) * | 2007-09-25 | 2008-02-13 | 江苏兴利来特钢有限公司 | Low temperature continuous casting heat patching method and its automatic heat patching device |
| KR20080030141A (en) * | 2006-09-29 | 2008-04-04 | 조소곤 | A cooling apparatus of the continuous casting by cooling air induced by the vortex tube |
| CN102896750A (en) * | 2012-09-13 | 2013-01-30 | 东泰精密模具(苏州)有限公司 | Injection mold |
| CN108145930A (en) * | 2016-12-05 | 2018-06-12 | 新昌县双彩乡凯大模具厂 | Height heat dissipation injection mold |
| CN208374176U (en) * | 2018-06-07 | 2019-01-15 | 宁波永朝模具有限公司 | A kind of aluminium alloy castings cooling structure |
| CN209062130U (en) * | 2018-10-10 | 2019-07-05 | 叶江飞 | Fast Cooling casting machine |
| CN209238976U (en) * | 2018-12-05 | 2019-08-13 | 青岛盛森铸造有限公司 | A kind of casting mould with cooling structure |
| CN110468667A (en) * | 2019-08-27 | 2019-11-19 | 东南大学 | A kind of asphalt-spreader and its method for managing temperature with vortex tube |
| CN110480966A (en) * | 2018-05-15 | 2019-11-22 | 泰科电子(上海)有限公司 | Injection mould cooling system |
| CN110696314A (en) * | 2019-11-06 | 2020-01-17 | 苏州斯泰姆克工业智能科技有限公司 | Local cooling system of mould based on low temperature high-pressure gas |
-
2021
- 2021-12-15 CN CN202111533876.9A patent/CN114192756B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0933153A1 (en) * | 1998-01-29 | 1999-08-04 | Volkswagen Aktiengesellschaft | Mould for producing castings |
| JP2002205325A (en) * | 2001-01-11 | 2002-07-23 | Canon Inc | Injection mold |
| KR20080030141A (en) * | 2006-09-29 | 2008-04-04 | 조소곤 | A cooling apparatus of the continuous casting by cooling air induced by the vortex tube |
| CN101121193A (en) * | 2007-09-25 | 2008-02-13 | 江苏兴利来特钢有限公司 | Low temperature continuous casting heat patching method and its automatic heat patching device |
| CN102896750A (en) * | 2012-09-13 | 2013-01-30 | 东泰精密模具(苏州)有限公司 | Injection mold |
| CN108145930A (en) * | 2016-12-05 | 2018-06-12 | 新昌县双彩乡凯大模具厂 | Height heat dissipation injection mold |
| CN110480966A (en) * | 2018-05-15 | 2019-11-22 | 泰科电子(上海)有限公司 | Injection mould cooling system |
| CN208374176U (en) * | 2018-06-07 | 2019-01-15 | 宁波永朝模具有限公司 | A kind of aluminium alloy castings cooling structure |
| CN209062130U (en) * | 2018-10-10 | 2019-07-05 | 叶江飞 | Fast Cooling casting machine |
| CN209238976U (en) * | 2018-12-05 | 2019-08-13 | 青岛盛森铸造有限公司 | A kind of casting mould with cooling structure |
| CN110468667A (en) * | 2019-08-27 | 2019-11-19 | 东南大学 | A kind of asphalt-spreader and its method for managing temperature with vortex tube |
| CN110696314A (en) * | 2019-11-06 | 2020-01-17 | 苏州斯泰姆克工业智能科技有限公司 | Local cooling system of mould based on low temperature high-pressure gas |
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| Publication number | Publication date |
|---|---|
| CN114192756B (en) | 2023-07-25 |
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