CN110722109A - Casting mold for communicating and casting double pressure discs of car clutch - Google Patents
Casting mold for communicating and casting double pressure discs of car clutch Download PDFInfo
- Publication number
- CN110722109A CN110722109A CN201911196844.7A CN201911196844A CN110722109A CN 110722109 A CN110722109 A CN 110722109A CN 201911196844 A CN201911196844 A CN 201911196844A CN 110722109 A CN110722109 A CN 110722109A
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- Prior art keywords
- pouring gate
- pouring
- casting
- communicated
- gate
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/22—Moulds for peculiarly-shaped castings
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/08—Features with respect to supply of molten metal, e.g. ingates, circular gates, skim gates
- B22C9/082—Sprues, pouring cups
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/08—Features with respect to supply of molten metal, e.g. ingates, circular gates, skim gates
- B22C9/088—Feeder heads
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Abstract
The invention discloses a casting mould for communicating and casting double pressure plates of a car clutch, which comprises a sprue cup and a pouring gate; the molten iron flows into two groups of symmetrical casting cavities from a pouring cup through a pouring gate, and a feeding head is arranged on the pouring gate above the casting cavities to feed the casting; the lower part of the sprue cup is communicated with a first vertical pouring gate through a first horizontal pouring gate, the lower part of the first vertical pouring gate is communicated with a second horizontal pouring gate, and two groups of second vertical pouring gates are symmetrically arranged below the second horizontal pouring gate; one side of the second vertical pouring channel is communicated with the casting cavity through a multi-stage pouring channel; pouring channels which are symmetrically arranged and communicated with the casting cavity are communicated with each other, and a communicating vessel is formed when the iron liquid is filled; the multistage pouring gate is provided with a plurality of groups of transverse pouring gates or vertical pouring gates to form stepped casting, and the first-stage pouring gate, the middle pouring gate and the top pouring gate are arranged from bottom to top. The invention relates to a double-platen communication casting mold for a car clutch, which aims at solving the problem that the quality states of two platen castings are different due to different molten iron mold filling processes for casting the two platen castings simultaneously.
Description
Technical Field
The invention relates to the technical field of casting, in particular to a casting mold for communicating double pressure discs of a car clutch.
Background
The casting process is widely applied to metal production, and due to the strict standards of the automobile industry and the increase of calling demand for high precision, the pressure plate is used as an important part of an automobile clutch (as shown in figure 1), and the performance of the pressure plate directly influences the working efficiency of the clutch and the safe driving of an automobile, so that the casting quality of the pressure plate is required to be higher.
For example, as shown in fig. 2, in the existing pressure plate casting sand mold, vertical parting is performed, one mold is used, bottom pouring type single-sprue pouring is adopted, a riser is arranged at the top of a pressure plate casting to feed the pressure plate casting, but when the pouring or other single-sprue pouring is adopted, serious shrinkage cavity defects can occur below the riser of the pressure plate casting, and the reasons are that the feeding effect cannot be well achieved due to premature solidification in a feeding runner, the casting is not solidified when the riser is completely solidified, and the shrinkage cavity defects are caused by self-feeding of the casting.
The castings for manufacturing the two pressure plates by the existing process are arranged on a vertical production line, the heights of the two sides of the pouring gate are different, and the iron liquid filling processes of the two pressure plate castings are different, so that the quality states of the two pressure plate castings are different: the hardness and temperature of the casting are different, and the casting is asymmetrically arranged, so that slag inclusion or sand washing and the like are caused.
Disclosure of Invention
The invention aims to solve the problems and provide a casting mold with improved mold filling effect, which is designed and produced by utilizing the principle of a communicating vessel and is used for communicating two groups of car clutch double pressure discs in the same state.
In order to achieve the purpose, the invention is realized by the following technical scheme: a car clutch double pressure plate communicating casting mould comprises a pouring cup and a pouring gate, wherein molten iron flows into two groups of symmetrical casting cavities from the pouring cup through the pouring gate, and a riser is arranged on the pouring gate above the casting cavities to perform feeding on a casting; the lower part of the sprue cup is communicated with a first vertical pouring gate through a first horizontal pouring gate, the lower part of the first vertical pouring gate is communicated with a second horizontal pouring gate, and two groups of second vertical pouring gates are symmetrically arranged below the second horizontal pouring gate; one side of the second vertical pouring channel is communicated with the casting cavity through a multi-stage pouring channel; pouring channels which are symmetrically arranged and communicated with the casting cavity are communicated with each other, and a communicating vessel is formed when the iron liquid is filled; the multistage pouring gate is provided with a plurality of groups of transverse pouring gates or vertical pouring gates to form stepped casting, and the first-stage pouring gate, the middle pouring gate and the top pouring gate are arranged from bottom to top.
Further, the primary pouring gate comprises a bottom pouring gate and a primary vertical pouring gate; the molten iron flows through the bottom pouring gate from the primary vertical pouring gate through the lap joint channel and is poured into the casting cavity; the middle pouring gate comprises a middle vertical pouring gate, and one side of the middle vertical pouring gate is connected with the casting cavity through a lap joint channel; the top pouring gate comprises a top horizontal pouring gate, and one side of the top horizontal pouring gate is communicated with a riser through a lap joint channel; the first-level pouring gate, the middle pouring gate and the top pouring gate are arranged from bottom to top and are communicated with each other through a horizontal pouring gate or a vertical pouring gate; the lap joint channel communicated with the middle vertical pouring channel is obliquely and upwards arranged; the cross section of the lap joint channel communicated with the middle vertical pouring gate and the cross section of the lap joint channel communicated with the top pouring gate are smaller than that of the lap joint channel communicated with the first-stage vertical pouring gate.
In conclusion, the invention has the following beneficial effects: the invention relates to a double-platen communication casting mold of a car clutch, which aims at solving the problem that the quality states of two platen castings are different due to different molten iron mold filling processes when the two platen castings are simultaneously cast, and is characterized in that:
(1) the invention improves the feeding performance of the riser, eliminates the feeding defect, increases the section of the bottom pouring gate by using step type pouring, shortens the length and the section of the feeding pouring gate, shortens the mold filling time and reduces the temperature difference in the mold filling process;
(2) according to the invention, the lapping channel of the middle pouring channel is obliquely and upwards arranged, so that the impact on the mould wall caused by high flow speed due to the fact that molten iron directly flows into the mould cavity from the middle pouring channel is reduced, and meanwhile, when the first pouring channel pours, two liquid flows form circulation and the phenomenon that metal is also wrapped by gas occurs;
(3) the invention designs and produces two groups of pressure plate castings in the same state by utilizing the principle of a communicating vessel, in the process of filling iron liquid, the filling effect is duplicated by the two groups of symmetrical molds which are communicated, the quality states of the two groups of pressure plate castings are the same, and the hardness and temperature changes of the castings are also the same.
Drawings
FIG. 1 is a schematic diagram of a clutch pressure plate configuration;
FIG. 2 is a schematic structural diagram of bottom pouring type single pouring gate pouring of a sand mold for platen casting in the prior art;
FIG. 3 is a schematic structural diagram of the present invention.
Detailed Description
The invention will be further described in detail with reference to examples of embodiments shown in the drawings to which, however, the invention is not restricted.
Referring to fig. 1 to 3, the car clutch double pressure plate communication casting mold comprises a pouring cup 1 and a pouring channel, wherein molten iron flows into two groups of symmetrical casting cavities 2 from the pouring cup 1 through the pouring channel, and a riser 3 is arranged on the pouring channel above the casting cavities 2 to feed a casting; the lower part of the sprue cup 1 is communicated with a first vertical pouring channel 5 through a first horizontal pouring channel 4, the lower part of the first vertical pouring channel 4 is communicated with a second horizontal pouring channel 6, and two groups of second vertical pouring channels 7 are symmetrically arranged below the second horizontal pouring channel 6; one side of the second vertical pouring channel 7 is communicated with the casting cavity 2 through a multi-stage pouring channel; pouring channels which are symmetrically arranged and communicated with the casting cavity 2 are communicated with each other, and a communicating vessel is formed when molten iron is filled; the multistage pouring gate is provided with a plurality of groups of transverse pouring gates or vertical pouring gates to form stepped casting, and the first-stage pouring gate, the middle pouring gate and the top pouring gate are arranged from bottom to top.
The primary pouring gate comprises a bottom pouring gate 8 and a primary vertical pouring gate 9; molten iron flows through the bottom pouring gate 8 from the primary vertical pouring gate 9 through the lap joint channel 10 and is injected into the casting cavity 2; the middle pouring gate comprises a middle vertical pouring gate 11, and one side of the middle vertical pouring gate 11 is connected with the casting cavity 2 through a lap joint channel; the top pouring gate comprises a top cross pouring gate 12, and one side of the top cross pouring gate 12 is communicated with the risers 3 through a lap joint channel; the first-level pouring gate, the middle pouring gate and the top pouring gate are arranged from bottom to top and are communicated with each other through a horizontal pouring gate or a vertical pouring gate; the lap joint channel 10 communicated with the middle vertical pouring channel 11 is obliquely and upwards arranged; the cross sections of the lap joint channel communicated with the middle vertical pouring gate 11 and the lap joint channel communicated with the top horizontal pouring gate 12 are smaller than the cross section of the lap joint channel communicated with the first-level vertical pouring gate 9; the invention utilizes the step type pouring, enlarges the section of the bottom pouring gate, shortens the length and the section of the feeding pouring gate, shortens the time of filling the mold, reduces the temperature difference in the process of filling the mold, simultaneously, the lap joint channel 10 communicated with the middle vertical pouring gate 11 is obliquely and upwards arranged, the iron liquid can not directly flow into the cavity from the middle pouring gate to impact the mold wall, simultaneously, the iron liquid in the filling mold with smaller section of the top pouring gate can not be fed head first, and the phenomenon that when the iron liquid is filled to contact the feed head, the iron liquid flowing in from the top pouring gate can be lifted to be poured ahead to cause the splashing of the metal liquid.
In addition, the invention is designed based on the principle of the communicating vessels, complex multi-stage or multi-section runners are not suitable for the design of the middle runners, and meanwhile, top-layer cross runners are not suitable to be communicated together; meanwhile, the communicated part of each lap joint channel and the casting cavity can be cut into the casting cavity by adopting an arc angle in the same direction as the inclination direction of the lap joint channel, and the arrangement requirement of a riser is large enough, so that molten iron of the riser and molten iron in the cavity are solidified simultaneously.
The above-mentioned embodiments are only for convenience of description, and are not intended to limit the present invention in any way, and those skilled in the art will understand that the technical features of the present invention can be modified or changed by other equivalent embodiments without departing from the scope of the present invention.
Claims (2)
1. The utility model provides a car clutch double pressure dish intercommunication casting mould, it includes pouring basin, waters, its characterized in that: the molten iron flows into two groups of symmetrical casting cavities from a pouring cup through a pouring gate, and a feeding head is arranged on the pouring gate above the casting cavities to feed the casting; the lower part of the sprue cup is communicated with a first vertical pouring gate through a first horizontal pouring gate, the lower part of the first vertical pouring gate is communicated with a second horizontal pouring gate, and two groups of second vertical pouring gates are symmetrically arranged below the second horizontal pouring gate; one side of the second vertical pouring channel is communicated with the casting cavity through a multi-stage pouring channel; pouring channels which are symmetrically arranged and communicated with the casting cavity are communicated with each other, and a communicating vessel is formed when the iron liquid is filled; the multistage pouring gate is provided with a plurality of groups of transverse pouring gates or vertical pouring gates to form stepped casting, and the first-stage pouring gate, the middle pouring gate and the top pouring gate are arranged from bottom to top.
2. The casting mold for the double pressure discs of the car clutch in the communication manner according to claim 1 is characterized in that: the primary pouring gate comprises a bottom pouring gate and a primary vertical pouring gate; the molten iron flows through the bottom pouring gate from the primary vertical pouring gate through the lap joint channel and is poured into the casting cavity; the middle pouring gate comprises a middle vertical pouring gate, and one side of the middle vertical pouring gate is connected with the casting cavity through a lap joint channel; the top pouring gate comprises a top horizontal pouring gate, and one side of the top horizontal pouring gate is communicated with a riser through a lap joint channel; the first-level pouring gate, the middle pouring gate and the top pouring gate are arranged from bottom to top and are communicated with each other through a horizontal pouring gate or a vertical pouring gate; the lap joint channel communicated with the middle vertical pouring channel is obliquely and upwards arranged; the cross section of the lap joint channel communicated with the middle vertical pouring gate and the cross section of the lap joint channel communicated with the top pouring gate are smaller than that of the lap joint channel communicated with the first-stage vertical pouring gate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911196844.7A CN110722109A (en) | 2019-11-29 | 2019-11-29 | Casting mold for communicating and casting double pressure discs of car clutch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911196844.7A CN110722109A (en) | 2019-11-29 | 2019-11-29 | Casting mold for communicating and casting double pressure discs of car clutch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110722109A true CN110722109A (en) | 2020-01-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911196844.7A Pending CN110722109A (en) | 2019-11-29 | 2019-11-29 | Casting mold for communicating and casting double pressure discs of car clutch |
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| Country | Link |
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| CN (1) | CN110722109A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202097365U (en) * | 2011-04-29 | 2012-01-04 | 林州市银桥机械制造有限公司 | Automotive brake disc-casting runner mechanism |
| CN202199726U (en) * | 2011-08-04 | 2012-04-25 | 黄石东贝铸造有限公司 | Sand mould for brake hub |
| CN106903267A (en) * | 2017-03-23 | 2017-06-30 | 江苏凌特精密机械有限公司 | A kind of mould for improving brake disc yield rate |
| CN206567500U (en) * | 2017-03-10 | 2017-10-20 | 洛阳古城机械有限公司 | A kind of casting system of automobile clutch flywheel decompression cast |
| CN208303802U (en) * | 2018-05-21 | 2019-01-01 | 洛阳古城机械有限公司 | A kind of casting mold of automobile clutch pressure plate casting |
| CN208303792U (en) * | 2018-05-21 | 2019-01-01 | 洛阳古城机械有限公司 | It is a kind of for reducing the mold of automobile clutch flywheel shrinkage defect |
-
2019
- 2019-11-29 CN CN201911196844.7A patent/CN110722109A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202097365U (en) * | 2011-04-29 | 2012-01-04 | 林州市银桥机械制造有限公司 | Automotive brake disc-casting runner mechanism |
| CN202199726U (en) * | 2011-08-04 | 2012-04-25 | 黄石东贝铸造有限公司 | Sand mould for brake hub |
| CN206567500U (en) * | 2017-03-10 | 2017-10-20 | 洛阳古城机械有限公司 | A kind of casting system of automobile clutch flywheel decompression cast |
| CN106903267A (en) * | 2017-03-23 | 2017-06-30 | 江苏凌特精密机械有限公司 | A kind of mould for improving brake disc yield rate |
| CN208303802U (en) * | 2018-05-21 | 2019-01-01 | 洛阳古城机械有限公司 | A kind of casting mold of automobile clutch pressure plate casting |
| CN208303792U (en) * | 2018-05-21 | 2019-01-01 | 洛阳古城机械有限公司 | It is a kind of for reducing the mold of automobile clutch flywheel shrinkage defect |
Non-Patent Citations (1)
| Title |
|---|
| 杨小冬等: "汽车离合器压盘铸造数值模拟及工艺优化 ", 《热加工工艺》 * |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200124 |