CN107695298B - Engine rocker arm chamber forming die with blind riser - Google Patents
Engine rocker arm chamber forming die with blind riser Download PDFInfo
- Publication number
- CN107695298B CN107695298B CN201711193360.8A CN201711193360A CN107695298B CN 107695298 B CN107695298 B CN 107695298B CN 201711193360 A CN201711193360 A CN 201711193360A CN 107695298 B CN107695298 B CN 107695298B
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- CN
- China
- Prior art keywords
- die
- cavity
- blind riser
- rocker arm
- arm chamber
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 238000005266 casting Methods 0.000 abstract description 20
- 239000007788 liquid Substances 0.000 abstract description 10
- 230000000694 effects Effects 0.000 abstract description 4
- 230000007547 defect Effects 0.000 abstract description 2
- 238000004321 preservation Methods 0.000 abstract description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
Classifications
-
- 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
-
- 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
- B22C9/24—Moulds for peculiarly-shaped castings for hollow articles
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
- Valve-Gear Or Valve Arrangements (AREA)
Abstract
The invention belongs to the technical field of forming dies, and relates to an engine rocker arm chamber forming die with blind riser, which comprises a front die and a rear die, wherein a small air storage die cavity communicated with the die cavity is upwards extended at more than one upward concave top wall of the die cavity formed by the front die and the rear die, and an exhaust plug is arranged on the small air storage die cavity, and the invention has the advantages that: the invention extends upwards at more than one upward concave top wall in the mould cavity to form the blind riser with the small gas storage mould cavity communicated with the mould cavity, when casting products, the casting liquid presses the gas in the mould cavity into the blind riser to form certain air pressure, the air pressure can prevent the casting liquid entering the blind riser, the invention also has the heat preservation function, the uneven necking of the products is prevented, the vent plug can ensure that the gas in the small gas storage mould cavity can not be pressed into the cast products to form casting defects, the invention has simple structure, obvious energy-saving effect and convenient use, and is suitable for casting moulds of various types.
Description
Technical Field
The invention belongs to the technical field of forming dies, and particularly relates to an engine rocker arm chamber forming die with a blind riser.
Background
At present, a riser is generally arranged at more than one upward concave top wall in a casting die cavity, when casting liquid overflows from the riser, the casting liquid is considered to be full, and casting is stopped, so that more casting liquid is injected into more risers, a large amount of casting liquid is formed to be injected into the riser to form useless casting liquid, and energy is wasted.
Disclosure of Invention
The invention aims to provide an energy-saving casting die with blind riser.
The purpose of the invention is realized in the following way:
the engine rocker arm chamber forming die with the blind riser comprises a front die and a rear die, a die cavity for forming the engine rocker arm chamber is formed between the front die and the rear die, more than one upward concave top wall in the die cavity is upwards extended to form a small air storage die cavity communicated with the die cavity, and an exhaust plug is arranged on the small air storage die cavity.
The small air storage cavity is high at one end and low at the other end to form a high cavity and a low cavity, and the vent plug is arranged on the top wall of the low cavity.
The vent plug is a screw plug.
The screw plug is provided with an exhaust small hole which is penetrated up and down.
The vent plug is a one-way valve.
The one-way valve is an opening pressure-adjustable one-way valve.
The vent plug is arranged on the front die or the rear die.
The side walls of the small die cavities are all truncated polygonal pyramid bodies with the upper side inwards folded.
The mold core is arranged in the mold cavity formed by the front mold and the rear mold.
Compared with the prior art, the invention has the following outstanding and beneficial technical effects:
the invention extends upwards at more than one upward concave top wall in the die cavity to form a blind riser, the small air storage die cavity is provided with the vent plug, thus, when casting products, the casting liquid presses the air in the die cavity into the blind riser to form certain air pressure, firstly, the air pressure can have a certain stopping effect on the casting liquid entering the blind riser, a large amount of casting liquid is saved in the injection riser, secondly, the air pressure has higher temperature, the air pressure has a heat preservation effect in the cooling process before the casting products are opened, the bad shrinkage of the products is prevented, the vent plug can ensure that the air pressure in the small air storage die cavity cannot be too large, and the air can enter the cast products to form casting defects.
Drawings
Fig. 1 is a schematic perspective view of a front mold of the present invention.
Fig. 2 is a schematic perspective view of a rear mold of the present invention.
Fig. 3 is a schematic view of the structural principle of the present invention.
Detailed Description
The invention is further described in the following embodiments with reference to the figures, see fig. 1-3:
the engine rocker arm chamber forming die with the blind riser comprises a front die 10 and a rear die 11, a die cavity 20 for forming an engine rocker arm chamber is formed between the front die 10 and the rear die 11, more than one upward concave top wall in the die cavity 20 is upwards extended to form a small air storage die cavity 21 communicated with the die cavity 20, and an exhaust plug is arranged on the small air storage die cavity 21.
The small air storage cavity 21 is formed into a high cavity 22 and a low cavity 23 at one end and at the other end, and the vent plug is arranged on the top wall 24 of the low cavity 23.
The vent plug is a screw plug 40.
The screw plug 40 is provided with a vent hole 25 penetrating up and down.
The vent plug is described as a one-way valve 42.
The check valve 42 is a check valve 42 with adjustable opening pressure, and the tightness of the spring 41 is adjusted to adjust the opening pressure of the check valve 42 so as to adapt to the size of the small air storage cavity 21 and the air storage pressure.
The vent plug described above is provided on the front mold 10 or the rear mold 20.
The side walls of the small mold cavity 21 are all truncated pyramid-shaped bodies formed by inward folding from the upper side, or the side walls of the small mold cavity 21 have a certain included angle (for example, an included angle of 0.5-20 degrees or 2-10 degrees) with the vertical plane, so that the engine rocker arm chamber formed by casting can be smoothly demolded during mold opening.
The cavity 20 formed by the front mold and the rear mold is provided with a mold core.
The above embodiments are only preferred embodiments of the present invention, and are not intended to limit the scope of the present invention in this way, therefore: all equivalent changes in structure, shape and principle of the invention should be covered in the scope of protection of the invention.
Claims (5)
1. Engine rocking arm room forming die with blind riser, including front mould and back mould, its characterized in that: a die cavity for forming an engine rocker arm chamber is formed between the front die and the rear die, more than one upward concave top wall in the die cavity is upwards extended to form a small air storage die cavity communicated with the die cavity, and an exhaust plug is arranged on the small air storage die cavity;
the small air storage cavity is high at one end and low at the other end to form a high cavity and a low cavity, and the vent plug is arranged on the top wall of the low cavity;
the vent plug is a screw plug;
the screw plug is provided with an exhaust small hole which is communicated up and down;
the upper sides of the side walls of the small gas storage mold cavities are inwards retracted to form truncated polygonal pyramid shapes.
2. The engine rocker arm chamber forming die with blind riser of claim 1, wherein: the vent plug is a one-way valve.
3. The engine rocker arm chamber forming die with blind riser of claim 2, wherein: the one-way valve is a one-way valve with adjustable opening pressure.
4. The engine rocker arm chamber forming die with blind riser of claim 1, wherein: the vent plug is arranged on the front die or the rear die.
5. The engine rocker arm chamber forming die with blind riser according to any one of claims 1 to 4, wherein: the mold core is arranged in the mold cavity formed by the front mold and the rear mold.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711193360.8A CN107695298B (en) | 2017-11-24 | 2017-11-24 | Engine rocker arm chamber forming die with blind riser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711193360.8A CN107695298B (en) | 2017-11-24 | 2017-11-24 | Engine rocker arm chamber forming die with blind riser |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107695298A CN107695298A (en) | 2018-02-16 |
| CN107695298B true CN107695298B (en) | 2024-01-09 |
Family
ID=61185474
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711193360.8A Active CN107695298B (en) | 2017-11-24 | 2017-11-24 | Engine rocker arm chamber forming die with blind riser |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107695298B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109773125B (en) * | 2019-01-30 | 2021-05-04 | 浙江春晖复合材料有限公司 | Convenient-to-use die |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007045083A (en) * | 2005-08-12 | 2007-02-22 | Sumitomo Rubber Ind Ltd | Mold for tire, and manufacturing method for tire |
| CN201279573Y (en) * | 2008-09-11 | 2009-07-29 | 西峡县内燃机进排气管有限责任公司 | Water-jacket exhaust manifold forging die |
| CN202291263U (en) * | 2011-10-08 | 2012-07-04 | 吴江市液铸液压件铸造有限公司 | Blind riser |
| CN202343869U (en) * | 2011-12-12 | 2012-07-25 | 株洲九方铸造有限责任公司 | Shaft box body casting mould |
| CN104226915A (en) * | 2014-09-26 | 2014-12-24 | 衡阳中钢衡重铸锻有限公司 | Casting method of hollow shaft and casting mold |
| CN204108284U (en) * | 2014-08-07 | 2015-01-21 | 山东泰开精密铸造有限公司 | Non-ferrous alloy low pressure casting die |
| CN104646630A (en) * | 2015-01-29 | 2015-05-27 | 夏平桂 | Smokeless casting process |
| CN104889333A (en) * | 2015-06-03 | 2015-09-09 | 天津市航宇金属加工有限公司 | Mould with heatproof risers |
| CN205571334U (en) * | 2016-05-11 | 2016-09-14 | 安徽白兔湖动力股份有限公司 | Casting die utensil of dysmorphism combustion chamber piston |
| KR101687210B1 (en) * | 2016-07-01 | 2016-12-19 | 세화금속공업주식회사 | mold using multi-riser |
| CN208116690U (en) * | 2017-11-24 | 2018-11-20 | 天台县银兴机械铸造有限公司 | Engine rocker room molding die with blind riser |
-
2017
- 2017-11-24 CN CN201711193360.8A patent/CN107695298B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007045083A (en) * | 2005-08-12 | 2007-02-22 | Sumitomo Rubber Ind Ltd | Mold for tire, and manufacturing method for tire |
| CN201279573Y (en) * | 2008-09-11 | 2009-07-29 | 西峡县内燃机进排气管有限责任公司 | Water-jacket exhaust manifold forging die |
| CN202291263U (en) * | 2011-10-08 | 2012-07-04 | 吴江市液铸液压件铸造有限公司 | Blind riser |
| CN202343869U (en) * | 2011-12-12 | 2012-07-25 | 株洲九方铸造有限责任公司 | Shaft box body casting mould |
| CN204108284U (en) * | 2014-08-07 | 2015-01-21 | 山东泰开精密铸造有限公司 | Non-ferrous alloy low pressure casting die |
| CN104226915A (en) * | 2014-09-26 | 2014-12-24 | 衡阳中钢衡重铸锻有限公司 | Casting method of hollow shaft and casting mold |
| CN104646630A (en) * | 2015-01-29 | 2015-05-27 | 夏平桂 | Smokeless casting process |
| CN104889333A (en) * | 2015-06-03 | 2015-09-09 | 天津市航宇金属加工有限公司 | Mould with heatproof risers |
| CN205571334U (en) * | 2016-05-11 | 2016-09-14 | 安徽白兔湖动力股份有限公司 | Casting die utensil of dysmorphism combustion chamber piston |
| KR101687210B1 (en) * | 2016-07-01 | 2016-12-19 | 세화금속공업주식회사 | mold using multi-riser |
| CN208116690U (en) * | 2017-11-24 | 2018-11-20 | 天台县银兴机械铸造有限公司 | Engine rocker room molding die with blind riser |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107695298A (en) | 2018-02-16 |
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| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: 317200, Zhejiang City, Taizhou province Tiantai County Baihe Town tea pond Industrial Zone Applicant after: Zhejiang Yinxing Machinery Co.,Ltd. Address before: 317200, Zhejiang City, Taizhou province Tiantai County Baihe Town tea pond Industrial Zone Applicant before: TIANTAI YINXING MECHANICAL CASTING Co.,Ltd. |
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