CN114192756B - Piston casting mold cooling system and piston casting equipment - Google Patents
Piston casting mold cooling system and piston casting equipment Download PDFInfo
- Publication number
- CN114192756B CN114192756B CN202111533876.9A CN202111533876A CN114192756B CN 114192756 B CN114192756 B CN 114192756B CN 202111533876 A CN202111533876 A CN 202111533876A CN 114192756 B CN114192756 B CN 114192756B
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- cooling
- vortex tube
- piston
- casting mould
- control valve
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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
Abstract
The invention discloses a cooling system of a piston casting mould, 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 flow channel inlet of the casting mould, and the controller is communicated with the control valve group so as to control low-temperature compressed gas generated by the vortex tube to enter the cooling flow channel of the casting mould. And the cooling speed is improved, and then the metallographic structure grade of the head of the piston blank is improved. The cooling water is effectively prevented from corroding and leaking the die, the production efficiency is improved, the manufacturing cost is reduced, the overall performance is improved, compressed gas can be reused, and the workshop production cost is saved to a certain extent. The invention also discloses piston casting equipment comprising the piston casting mold cooling system.
Description
Technical Field
The invention relates to the field of piston machining, in particular to a cooling system of a piston casting die. The invention also relates to a piston casting device comprising the system.
Background
In the process of casting the piston by using the casting mould, the casting mould needs to be cooled, the current cooling mode is to introduce cooling water into each component of the casting mould, the water temperature is above 25 ℃, and the heat on the mould is taken away by the cooling water, so that the aim of rapidly cooling the mould is finally realized.
Generally, the faster the casting cools, the shorter the solidification time, and the denser the corresponding material structure, and the better the performance. However, due to the limitation of the structure of the mold, the diameter of the cooling water channel inside the mold cannot be designed to be too large, and the temperature of cooling water is generally above 25 ℃, so that the cooling speed of the whole mold system is limited. Due to insufficient cooling capacity of the die, the blank solidification time is long, 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 system is not easy to find, the manual checking process is relatively time-consuming, the mold sealing system used for a long time is aged, and the mold is easy to permeate water outwards during working, so that potential safety hazards exist.
Therefore, how to provide a stable and efficient cooling system for a piston casting mold is a technical problem that needs to be solved by those skilled in the art.
Disclosure of Invention
The invention aims to provide a cooling system for a piston casting mould, which uses low-temperature gas generated by a vortex tube to replace cooling water, so that the cooling speed is improved, the metallographic structure grade of the head part of a piston blank is further improved, the production efficiency is improved, and the manufacturing cost is reduced. It is a further object of the present invention to provide a piston casting apparatus comprising the above system.
In order to solve the technical problems, the invention provides a cooling system of a piston casting mold, 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 an air inlet of the control valve group, an air outlet of the control valve group is connected with a cooling flow passage inlet of the 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 flow passage 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 low-temperature one-way 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 runner 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 flow passages are respectively arranged in the cooling mechanisms, and the cooling flow passages are respectively connected with four control valve groups.
Preferably, flow detectors are arranged at the cooling runner outlets of the cooling mechanisms of the casting mold, and each flow detector is in communication connection with the controller.
Preferably, a constant pressure valve is arranged at the 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, the cooling runner 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 die and a piston casting die cooling system connected with the casting die, wherein the piston casting die cooling system is specifically any one of the piston casting die cooling systems.
The invention provides a cooling system of a piston casting mould, 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 flow channel inlet of the casting mould, and the controller is communicated with the control valve group so as to control low-temperature compressed gas generated by the vortex tube to enter the cooling flow channel of the casting mould.
The low-temperature gas generated by the vortex tube is used for replacing cooling water, the low-temperature gas flows in the cooling flow channel to cool the casting mold, the flow, the pressure and the ventilation time of the low-temperature compressed gas are controlled through the control valve group, the cooling speed is improved, and then the metallographic structure grade of the head of the piston blank is improved. The cooling water is effectively prevented from corroding and leaking the die, the production efficiency is improved, the manufacturing cost is reduced, the overall performance is improved, compressed gas can be reused, and the workshop production cost is saved to a certain extent.
The present invention also provides a piston casting apparatus including a piston casting mold cooling system, which should have the same technical effects as the above-mentioned technical effects, and will not be described in detail herein.
Drawings
Fig. 1 is a schematic diagram of an embodiment of a cooling system for a casting mold for a piston according to the present invention.
Detailed Description
The core of the invention is to provide a cooling system of a piston casting mould, which uses low-temperature gas generated by a vortex tube to replace cooling water, so as to improve the cooling speed, further improve the metallographic structure grade of the head part of a piston blank, improve the production efficiency and reduce the manufacturing cost. Another core of the invention is to provide a piston casting apparatus comprising the above system.
In order to better understand the aspects of the present invention, the present invention will be described in further detail with reference to the accompanying drawings and detailed description.
Referring to fig. 1, fig. 1 is a schematic diagram of an embodiment of a cooling system for a casting mold of a piston 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 pore plate and a cold and hot two-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 enters the nozzle from a gas inlet of the vortex tube 2 and expands in the nozzle when in operation, then enters the vortex chamber in a tangential direction at a very high speed, when the air flow rotates in the vortex chamber at a high speed, the air flow is separated into two partial air flows with unequal temperatures after vortex transformation, cold air flows out from the low-temperature gas outlet of the cold end tube after separation, and hot air flows out from the high-temperature gas outlet of the hot end tube. The temperature and flow rate of the cold air flow can be controlled by adjusting a valve, the vortex tube 2 uses filtered industrial compressed air, and the air flow generator is reliable in operation, maintenance-free, durable and capable of generating air flow with the temperature ranging from-40 ℃ to +110 ℃.
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 flow passage inlet of the casting mold 5, and the controller 4 is communicated 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 flow passage 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 casting mold 5 is cooled by flowing in a cooling flow passage, the flow rate, the pressure and the ventilation time of the low-temperature compressed gas are controlled by the control valve group 3, the temperature of the low-temperature gas generated by the vortex tube 2 is far lower than the temperature of the cooling water and even reaches-40 ℃, and the low-temperature is the low temperature which cannot be reached by normal cooling water, so that the cooling speed is improved, and the metallographic structure grade of the head of a piston blank is further improved. The cooling water is effectively prevented from corroding and leaking the die, the production efficiency is improved, the manufacturing cost is reduced, the overall performance is improved, compressed gas can be reused, and the workshop production cost is saved to a certain extent.
Specifically, the control valve group 3 includes a low temperature check valve 31, a controllable throttle valve 32 and an electromagnetic switch valve 33 connected in series in this order, an inlet of the low temperature check valve 31 is connected to a low temperature gas outlet of the vortex tube 2 and allows low temperature compressed gas to flow into the controllable throttle valve 32, the low temperature compressed air is prevented from flowing backward, and an outlet of the electromagnetic switch valve 33 is connected to a cooling runner inlet of the casting mold 5. The controller 4 controls the electromagnetic switch valve 33 to be opened and closed, 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 gas 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 flow passage of the casting mold 5, the controller 4 can also control the flow of the controllable throttle valve 32, and in the working process, the controller 4 controls the ventilation time and the flow according to the technological requirements, so that the accurate control is realized.
Further, in order to ensure the cooling effect, the casting mold 5 is provided with a plurality of cooling flow channels, and a plurality of control valve groups 3 connected in parallel can be provided, the low-temperature check valve 31 of each control valve group 3 is simultaneously connected with the vortex tube 2, and the electromagnetic switch valve 33 of each control valve group 3 is respectively connected with the inlets of the plurality of cooling flow channels of the casting mold 5. And further, independent control of cooling compressed gas in each cooling flow channel can be realized, and the process requirement is 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 cooling channels are respectively provided in each cooling mechanism, and are respectively connected with four control valve groups 3. And a larger number of cooling flow passages can be arranged according to the situation, and corresponding control valve groups 3 can be correspondingly arranged.
Flow detectors 6 are arranged at the cooling runner outlets of the cooling mechanisms of the casting mold 5, and the flow detectors 6 are in communication connection with the controller 4. The gas flow in the pipeline can be monitored in real time, and the controller 4 can judge whether the pipeline has air leakage or blockage according to the monitoring result of the flow detector 6, so that the manual investigation time is saved. The low-temperature gas outlet of the vortex tube 2 can be provided with a constant-pressure valve 7, low-temperature compressed gas firstly passes through the constant-pressure valve 7 and then reaches each control valve group 3, constant-pressure compressed gas is provided for the system, and the stability of the system is improved.
On the basis of the cooling system of the piston casting mold provided by the above specific embodiments, the high-temperature gas outlet of the vortex tube 2 is connected with the accumulator 8, so that the high-temperature compressed gas synchronously generated by the vortex tube 2 enters the accumulator 8 to be stored, a high-temperature one-way valve 9 is arranged between the vortex tube 2 and the accumulator 8, and the high-temperature one-way valve 9 allows the high-temperature compressed gas to flow into the accumulator 8 from the vortex tube 2, thereby preventing the high-temperature compressed gas from flowing back. Further, the outlet of the cooling runner of the casting mold 5 is connected with the energy accumulator 8, so that the cooled compressed gas can also enter the energy accumulator 8 for storage, an exhaust gas one-way valve 10 is arranged between the casting mold 5 and the energy accumulator 8, and the exhaust gas one-way valve 10 allows the cooled exhaust gas to flow into the energy accumulator 8 from the casting mold 5, thereby preventing the exhaust gas from flowing back. The compressed gas collected by the energy accumulator 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, ensuring that the pressure in the system and the accumulator 8 is always within safe values.
In addition to the above-mentioned cooling system for the piston casting mold, the embodiment of the present invention further provides a piston casting apparatus including the above-mentioned cooling system for the piston casting mold, and the structure of other parts of the piston casting apparatus is referred to in the prior art, and will not be described herein.
The cooling system of the piston casting mould and the piston casting equipment provided by the invention are described in detail above. The principles and embodiments of the present invention have been described herein with reference to specific examples, the description of which is intended only to facilitate an understanding of the method of the present invention and its core ideas. It should be noted that it will be apparent to those skilled in the art that various modifications and adaptations of the invention can be made without departing from the principles of the invention and these modifications and adaptations are intended to be within the scope of the invention as defined in the following claims.
Claims (7)
1. The cooling system of the piston casting mould is characterized by comprising an air compressor (1), a vortex tube (2), a control valve group (3) and a controller (4), wherein an output port of the air compressor (1) is communicated with a gas inlet of the vortex tube (2), a low-temperature gas outlet of the vortex tube (2) is connected with a gas inlet of the control valve group (3), a gas outlet of the control valve group (3) is connected with a cooling flow channel inlet of a casting mould (5), and the controller (4) is communicated with the control valve group (3) so as to control low-temperature compressed gas generated by the vortex tube (2) to enter the cooling flow channel of the casting mould (5);
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), and an outlet of the electromagnetic switch valve (33) is connected with a cooling flow channel inlet of the casting mold (5);
the low-temperature one-way valve (31) of each control valve group (3) is simultaneously connected with the vortex tube (2), and the electromagnetic switch valve (33) of each control valve group (3) is respectively connected with a plurality of cooling flow passage inlets of the casting mold (5);
the casting mold (5) comprises 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), wherein cooling flow passages are arranged in the cooling mechanisms, and the cooling mechanisms are respectively connected with four control valve groups (3).
2. The cooling system of the casting mold for the piston according to claim 1, wherein a flow rate detector (6) is arranged at the outlet of a cooling flow passage of each cooling mechanism of the casting mold (5), and each flow rate detector (6) is in communication connection with the controller (4).
3. A piston casting mould cooling system according to claim 1, characterized in that a constant pressure valve (7) is provided at the low temperature gas outlet of the vortex tube (2).
4. A piston casting mould cooling system according to any one of claims 1 to 3, characterized in that the high temperature gas outlet of the vortex tube (2) is connected with an energy storage (8), a high temperature non return valve (9) being arranged between the vortex tube (2) and the energy storage (8).
5. The cooling system of a piston casting mould according to claim 4, characterized in that the cooling runner outlet of the casting mould (5) is connected to the energy storage (8), and that an exhaust gas non-return valve (10) is arranged between the casting mould (5) and the energy storage (8).
6. Piston casting mould cooling system according to claim 5, characterized in that an overflow valve (11) is provided at the inlet of the accumulator (8).
7. Piston casting apparatus comprising a casting mould (5) and a piston casting mould cooling system connected to the casting mould (5), characterized in that the piston casting mould cooling system is in particular a piston casting mould cooling system according to any one of claims 1 to 6.
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 CN114192756A (en) | 2022-03-18 |
| CN114192756B true 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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| CN (1) | CN114192756B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| 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 |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19803397A1 (en) * | 1998-01-29 | 1999-08-05 | Volkswagen Ag | Casting mold for making castings |
| JP2002205325A (en) * | 2001-01-11 | 2002-07-23 | Canon Inc | Injection mold |
| CN102896750B (en) * | 2012-09-13 | 2015-03-18 | 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 |
| 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 (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| 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 |
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| CN114192756A (en) | 2022-03-18 |
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