CN103192056A - Mould structure for centering molding process of rotating shaft symmetrical part - Google Patents
Mould structure for centering molding process of rotating shaft symmetrical part Download PDFInfo
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- CN103192056A CN103192056A CN2012100058963A CN201210005896A CN103192056A CN 103192056 A CN103192056 A CN 103192056A CN 2012100058963 A CN2012100058963 A CN 2012100058963A CN 201210005896 A CN201210005896 A CN 201210005896A CN 103192056 A CN103192056 A CN 103192056A
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- mould
- sprue bush
- mould structure
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Abstract
The invention discloses a mould structure for the centering molding process of a rotating shaft symmetrical part. The mould structure comprises a fixed mould and a movable mould, wherein a cavity is formed between the fixed mould and the movable mould; the fixed mould is positioned in the center position of the cavity and is provided with a sprue bushing communicated with the cavity; the movable mould is positioned in the center position of the cavity and is provided with a secondary squeezing bar interspersed in the fixed mould and connected with external power equipment; the secondary squeezing bar and the sprue bushing are coaxially arranged; and the head part of the secondary squeezing bar is matched with an inner orifice of the sprue bushing to form an internally-tangent pouring gate structure. According to the invention, the innovative mould structure is adopted, and the secondary squeezing bar arranged on the fixed mould is matched with the sprue bushing, so that both the centering squeezing and the interior contact of an pouring gate can be realized, coherent actions of secondary squeezing and material handle shearing can be formed; and accordingly, the production efficiency of molding is improved, and the product quality is improved.
Description
Technical field
The present invention relates to a kind of mould structure, be specifically related to a kind of mould structure that is used in revolution axialy symmetric part center casting process, has center extruding and cast gate inscribe function.
Background technology
The revolution axialy symmetric part be a kind of be the center symmetry parts of symmetrical centre axle with the gyroaxis, as aluminium alloy wheel hub, be example with the aluminium alloy wheel hub, its common employing center casting process is produced, because it has appearance requirement, and has centre bore, since this type of foundry goods best secondary extrusion zone and the cast gate central shaft position that coexists, in order to improve the quality of aluminium alloy wheel hub, best method is to adopt the big cast gate casting of awl eck formula to add the extruding of two subcenters, big cast gate casting guarantees the smoothness of casting filler and is beneficial to the impurity sedimentation, carry out to think that other extending parts provide the pressure feeding when two subcenters are squeezed in assurance centre bore surface structure in the suitable moment, prevent shrinkage cavity or shrinkage porosite etc., but existing mould structure can not satisfy the requirement of the big cast gate center casting process of this employing awl eck formula, because it can't carry out effective two subcenters extruding, and after the foundry goods moulding, because the material handle of awl eck formula can't the demoulding, therefore, the backwardness of mould structure causes this casting process can not further develop application, causes productivity and product quality further to improve.
Summary of the invention
The objective of the invention is at the problems referred to above weak point, a kind of mould structure for revolution axialy symmetric part center casting process is provided, it has center extruding and cast gate inscribe function, improves production efficiency and the product quality of casting.
In order to reach above-mentioned functions, the present invention by the following technical solutions:
A kind of mould structure for revolution axialy symmetric part center casting process comprises fixed half and moving half, is die cavity between described cover half and the dynamic model, and the position that described cover half is positioned at the die cavity center is provided with a sprue bush that is communicated with die cavity; The position that described dynamic model is positioned at the die cavity center is provided with one and is interspersed on the dynamic model and the secondary extrusion bar that is connected with external impetus equipment; Described secondary extrusion bar and the coaxial setting of sprue bush, and its head cooperates composition cast gate undercut construction with the sprue bush inner orifice.
As preferably, the head of described secondary pressure rod is provided with the tapered knife cutting edge.
As preferably, described sprue bush is big sprue bush, and its inner orifice diameter is corresponding with the product center bore dia.
As preferably, described sprue bush inner chamber is pyramidal structure.
The present invention adopts the mould structure of innovation, and the secondary extrusion bar that arranges on dynamic model cooperates with sprue bush, realizes the cast gate inscribe in the extruding of realization center, and the sequence that forms secondary extrusion and shear the material handle improves production efficiency and the product quality of casting.
Description of drawings
Fig. 1 is mould structure of the present invention structural representation when filler is finished.
Fig. 2 is secondary extrusion bar extrusion process structural representation of the present invention.
Fig. 3 finishes the structural representation of shearing the material handle for secondary extrusion bar of the present invention cooperates with sprue bush.
1-cover half 2-dynamic model 3-sprue bush
4-secondary extrusion bar 5-cast gate material handle 6-binder tube
7-drift 31-sprue bush inner orifice 41-tapered knife cutting edge
Come the present invention is further described below in conjunction with the drawings and specific embodiments:
The specific embodiment
As shown in Figures 1 to 3, a kind of mould structure for revolution axialy symmetric part center casting process of the present invention, it comprises cover half 1 and dynamic model 2, is die cavity between described cover half 1 and the dynamic model 2, its concrete structure is as follows:
The position that described cover half 1 is positioned at the die cavity center is provided with a sprue bush that is communicated with die cavity 3, and described sprue bush 3 is big sprue bush, and its inner orifice 31 diameters are corresponding with the product center bore dia, and described sprue bush 3 inner chambers are pyramidal structure.
The position that described dynamic model 2 is positioned at the die cavity center is provided with one and is interspersed on the dynamic model 2 and the secondary extrusion bar 4 that is connected with the external compression power-equipment; Described secondary extrusion bar 4 and sprue bush 3 coaxial settings, and its head cooperates composition cast gate undercut construction with sprue bush inner orifice 31.As preferably, the head of described secondary pressure rod 4 is provided with tapered knife cutting edge 41, and when secondary extrusion bar 4 pressed to sprue bush inner orifice 31, both cooperated cast gate material handle 5 is realized shearing.The said external power-equipment is vertical extrusion equipment.
Come the present invention is further described below in conjunction with accompanying drawing and concrete application principle:
The present invention is mainly used in the revolution axialy symmetric part casting that has centre bore as aluminium alloy wheel hub etc., itself and vertical extrusion equipment be supporting to make to finish revolution axialy symmetric part center casting process, and secondary extrusion bar of the present invention pushes power with the hydraulic pressure of vertical extrusion equipment and is connected.As shown in Figure 1, during casting, the alloy liquation is introduced into sprue bush 3 through binder tube 6 and drift 7 extruding of vertical extrusion equipment, enters die cavity at last, and the alloy liquation enters process of setting in die cavity subsequently.As shown in Figure 2, because the alloy liquation shrinks at the process simultaneous that solidifies, for preventing that defectives such as shrinkage cavity or shrinkage porosite from appearring in foundry goods because of solidification shrinkage, the present invention arranges secondary extrusion bar 4 in the middle of dynamic model, in the appropriate moment of alloy liquation process of setting, press down secondary extrusion bar 4, carry out the secondary extrusion action and realize the pressure feeding.As shown in Figure 3, after drift 7 and binder tube 6 remove, secondary extrusion bar 4 continues to pressing down, and its head cooperates with sprue bush inner orifice 31 forms the cast gate undercut construction, realization is to the shearing of cast gate material handle 5, last cast gate material handle breaks away from mould, and cast gate material handle breaks away from before the mould die sinking, is referred to as the cast gate inscribe.Above-mentioned secondary extrusion bar 4 except carrying out secondary extrusion, can also further form the centre bore of foundry goods when pressing down, and has improved production efficiency.
The present invention has guaranteed linking up of extruding and shear action by said structure, has shortened the die casting cycle, has simplified mould structure, and good impetus has been played in the raising of die casting productivity and product quality.
Claims (4)
1. a mould structure that is used for revolution axialy symmetric part center casting process comprises fixed half and moving half, is die cavity between described cover half and the dynamic model, and it is characterized in that: the position that described cover half is positioned at the die cavity center is provided with a sprue bush that is communicated with die cavity; The position that described dynamic model is positioned at the die cavity center is provided with one and is interspersed on the dynamic model and the secondary extrusion bar that is connected with external impetus equipment; Described secondary extrusion bar and the coaxial setting of sprue bush, and its head cooperates composition cast gate undercut construction with the sprue bush inner orifice.
2. mould structure according to claim 1, it is characterized in that: the head of described secondary pressure rod is provided with the tapered knife cutting edge.
3. mould structure according to claim 1, it is characterized in that: described sprue bush is big sprue bush, its inner orifice diameter is corresponding with the product center bore dia.
4. mould structure according to claim 1, it is characterized in that: described sprue bush inner chamber is pyramidal structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100058963A CN103192056A (en) | 2012-01-10 | 2012-01-10 | Mould structure for centering molding process of rotating shaft symmetrical part |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100058963A CN103192056A (en) | 2012-01-10 | 2012-01-10 | Mould structure for centering molding process of rotating shaft symmetrical part |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103192056A true CN103192056A (en) | 2013-07-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012100058963A Pending CN103192056A (en) | 2012-01-10 | 2012-01-10 | Mould structure for centering molding process of rotating shaft symmetrical part |
Country Status (1)
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103464724A (en) * | 2013-08-22 | 2013-12-25 | 广州驭风旭铝铸件有限公司 | Casting method of wheel or wheel center disc |
| CN103480824B (en) * | 2013-09-12 | 2016-01-06 | 无锡夕阳康科技有限公司 | A kind of metal pattern gravity force casting machine with hot piercing is equipped |
| CN105215327A (en) * | 2015-10-31 | 2016-01-06 | 重庆鼎汉机械有限公司 | The extruding manufacturing process of wheel hub outer ring |
| WO2018053939A1 (en) * | 2016-09-23 | 2018-03-29 | 华南理工大学 | Extrusion casting method of workpiece |
| CN114101631A (en) * | 2021-11-23 | 2022-03-01 | 驻马店恒久机械制造有限公司 | Liquid die forging method for truck hub |
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| JPH01321062A (en) * | 1988-06-24 | 1989-12-27 | Toyota Motor Corp | Method for separating sprue in high pressure casting |
| JPH05285628A (en) * | 1992-04-08 | 1993-11-02 | Ube Ind Ltd | Method and apparatus for squeeze casting molten metal |
| JPH08197228A (en) * | 1995-01-18 | 1996-08-06 | U Mold:Kk | Apparatus for squeezing molten metal |
| US5562147A (en) * | 1994-09-05 | 1996-10-08 | Bortoloni; Andrea | Multi-stage casting plant and method of forming castings |
| JP2002178129A (en) * | 2000-12-20 | 2002-06-25 | Chuo Motor Wheel Co Ltd | Mold for casting |
| JP2002224809A (en) * | 2001-02-07 | 2002-08-13 | Chuo Motor Wheel Co Ltd | Metallic mold for casting |
| JP2003266168A (en) * | 2002-03-15 | 2003-09-24 | Fujino Gijutsu Consultant:Kk | Vertical-type casting apparatus and vertical-type casting method |
| WO2004012883A1 (en) * | 2002-07-26 | 2004-02-12 | Arcontec Argirov Gmbh | Low pressure casting die |
| CN1835816A (en) * | 2003-08-11 | 2006-09-20 | 鹫兴产株式会社 | Method of producing wheel and the wheel |
| KR100738998B1 (en) * | 2006-05-19 | 2007-07-13 | (주)썬테크 | Complex caster for manufacturing wheel of a car |
| CN202097389U (en) * | 2011-06-21 | 2012-01-04 | 中信戴卡轮毂制造股份有限公司 | Wheel mold formed by gravity pouring extrusion |
| CN202461477U (en) * | 2012-01-10 | 2012-10-03 | 广东科达机电股份有限公司 | Mould structure for center casting technology of rotating shaft symmetrical part |
-
2012
- 2012-01-10 CN CN2012100058963A patent/CN103192056A/en active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01321062A (en) * | 1988-06-24 | 1989-12-27 | Toyota Motor Corp | Method for separating sprue in high pressure casting |
| JPH05285628A (en) * | 1992-04-08 | 1993-11-02 | Ube Ind Ltd | Method and apparatus for squeeze casting molten metal |
| US5562147A (en) * | 1994-09-05 | 1996-10-08 | Bortoloni; Andrea | Multi-stage casting plant and method of forming castings |
| JPH08197228A (en) * | 1995-01-18 | 1996-08-06 | U Mold:Kk | Apparatus for squeezing molten metal |
| JP2002178129A (en) * | 2000-12-20 | 2002-06-25 | Chuo Motor Wheel Co Ltd | Mold for casting |
| JP2002224809A (en) * | 2001-02-07 | 2002-08-13 | Chuo Motor Wheel Co Ltd | Metallic mold for casting |
| JP2003266168A (en) * | 2002-03-15 | 2003-09-24 | Fujino Gijutsu Consultant:Kk | Vertical-type casting apparatus and vertical-type casting method |
| WO2004012883A1 (en) * | 2002-07-26 | 2004-02-12 | Arcontec Argirov Gmbh | Low pressure casting die |
| CN1835816A (en) * | 2003-08-11 | 2006-09-20 | 鹫兴产株式会社 | Method of producing wheel and the wheel |
| KR100738998B1 (en) * | 2006-05-19 | 2007-07-13 | (주)썬테크 | Complex caster for manufacturing wheel of a car |
| CN202097389U (en) * | 2011-06-21 | 2012-01-04 | 中信戴卡轮毂制造股份有限公司 | Wheel mold formed by gravity pouring extrusion |
| CN202461477U (en) * | 2012-01-10 | 2012-10-03 | 广东科达机电股份有限公司 | Mould structure for center casting technology of rotating shaft symmetrical part |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103464724A (en) * | 2013-08-22 | 2013-12-25 | 广州驭风旭铝铸件有限公司 | Casting method of wheel or wheel center disc |
| CN103480824B (en) * | 2013-09-12 | 2016-01-06 | 无锡夕阳康科技有限公司 | A kind of metal pattern gravity force casting machine with hot piercing is equipped |
| CN105215327A (en) * | 2015-10-31 | 2016-01-06 | 重庆鼎汉机械有限公司 | The extruding manufacturing process of wheel hub outer ring |
| WO2018053939A1 (en) * | 2016-09-23 | 2018-03-29 | 华南理工大学 | Extrusion casting method of workpiece |
| CN114101631A (en) * | 2021-11-23 | 2022-03-01 | 驻马店恒久机械制造有限公司 | Liquid die forging method for truck hub |
| CN114101631B (en) * | 2021-11-23 | 2023-02-03 | 驻马店恒久机械制造有限公司 | Liquid die forging method for truck hub |
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Application publication date: 20130710 |