CN202984579U - Cylinder cover casting die - Google Patents

Cylinder cover casting die Download PDF

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Publication number
CN202984579U
CN202984579U CN 201220704620 CN201220704620U CN202984579U CN 202984579 U CN202984579 U CN 202984579U CN 201220704620 CN201220704620 CN 201220704620 CN 201220704620 U CN201220704620 U CN 201220704620U CN 202984579 U CN202984579 U CN 202984579U
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CN
China
Prior art keywords
die
core
mould
exhaust
air inlet
Prior art date
Application number
CN 201220704620
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Chinese (zh)
Inventor
陈灵巧
Original Assignee
上海爱仕达汽车零部件有限公司
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Priority to CN 201220704620 priority Critical patent/CN202984579U/en
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Publication of CN202984579U publication Critical patent/CN202984579U/en

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Abstract

The utility model discloses a cylinder cover casting die in the field of automotive parts and components. The casting die comprises a metal section die enclosed by a first edge die, a second edge die, a first end die, a second end die and a bottom die, wherein a water jacket core, an air inlet core and an air exhaust core are arranged in a cavity of the metal section die; the water jacket core is positioned on the top surface of the bottom die; the air inlet core and the air exhaust core are positioned on the top surface of the water jacket core; feed head cores are formed in the top surfaces of the air inlet core and the air exhaust core; a top overflow feed head is formed in the top of each feed head core; a plurality of air inlet through holes are formed in the first edge die; the air inlet core is respectively connected with the plurality of air inlet through holes; a plurality of air exhaust through holes are formed in the second edge die; and the air exhaust core is respectively connected with the plurality of air exhaust through holes. The cylinder cover casting die has the technical effects of solving the technical problem that gas emitted from the cores in the metal section die is difficult to exhaust, and overcoming the defects of gas blockage and insufficient casting of the cylinder cover.

Description

A kind of cylinder head casting die

Technical field

The utility model relates to a kind of cylinder head casting die in auto parts and components field.

Background technology

Cylinder head is the automobile engine critical component, and its outline is for being about 440mm * 195mm * 128mm.The client is high to cylinder head dimensional requirement precision, flat appearance, clear-cut are complete; Dense internal organization, the casting flaws such as pore-free, shrinkage porosite; Requiring the material of cylinder head is alusil alloy, tensile strength 〉=160N/mm that material is corresponding 2, percentage elongation 〉=1.0%, the porosity≤3.5%, hardness 〉=75HB; And require under the 3bar air pressure without leaking; Present cylinder head belongs to thin-wall part more, and wherein the air flue wall thickness is in about 3.5mm, therefore casts difficulty larger.Be generally to adopt low pressure casting or the bilateral pouring technology of gravity rising pouring to produce at present both at home and abroad, its shortcoming is:

The first, the cylinder head part of producing is not fine and close, shrinkage porosite, and leakage is many.The second, during casting, in the die cavity of pattern, getting angry of core is difficult to discharge.The 3rd, be difficult to when cylinder head is cooling form consecutive solidification, the 4th production efficiency is low.

The utility model content

The purpose of this utility model is in order to overcome the deficiencies in the prior art, a kind of cylinder head casting die is provided, it can solve in the die cavity of when casting metal pattern die, and the technical problem of getting angry and being difficult to discharge of core is avoided cylinder head to produce feeling suffocated, misrun casting flaw.

A kind of technical scheme that realizes above-mentioned purpose is: a kind of cylinder head casting die, comprise the metal pattern die that is surrounded by first side mould, Second Edge mould, first end mould, the second end mould and bed die, be provided with the sand core of water jacket that is positioned at described bed die end face in the die cavity of described metal pattern die, and the air inlet core and the exhaust core that are positioned at described sand core of water jacket end face, the end face of described air inlet core and described exhaust core is provided with the rising head core, described rising head core top is provided with the top satrain relief

Described first side mould is provided with several air inlet through holes, and described air inlet core connects respectively this several air inlet through holes, and described Second Edge mould is provided with several exhaust holes, and described exhaust core connects respectively this several exhaust holes.

Further, respectively be provided with a bed die exhaust hole on four drift angles of described bed die, described bed die exhaust hole is sealed in the bottom surface of described sand core of water jacket.

Further, be equipped with end parting line venting through hole on described first end mould and described the second end mould, the periphery wall of described sand core of water jacket seals described end parting line venting through hole.

Further, be provided with the bed die water cooling plant parallel with described bed die bottom surface in described bed die, described bed die bottom surface also is provided with the combustion chamber water cooling plant perpendicular to described bed die bottom surface, the outer wall of described first side mould is provided with the first air cooling equipment, and the outer wall of described Second Edge mould is provided with the second air cooling equipment.

Further, the top of described first end mould is provided with cup, be provided with cross gate in described first side mould, described cross gate bottom is provided with the clearance type ingate of the die cavity that is communicated with described metal pattern die, also is provided with the sprue that is communicated with described cup and described cross gate in described first end mould.

Adopted the technical scheme of a kind of cylinder head casting die of the present utility model, namely in the die cavity of metal pattern die, the air inlet core connects the exhaust hole on the first side mould, and the exhaust core connects the technical scheme of the exhaust hole on the Second Edge mould.Its technique effect is: solved the technical problem that the core in the die cavity of metal pattern die is got angry and is difficult to discharge, avoided cylinder head to produce feeling suffocated, misrun casting flaw.

Description of drawings

Fig. 1 is a kind of cylinder head casting die plan structure schematic diagram of the present utility model.

Fig. 2 is Second Edge mode structure schematic diagram on a kind of cylinder head casting die of the present utility model.

Fig. 3 is the second end mode structure schematic diagram on a kind of cylinder head casting die of the present utility model.

Fig. 4 is bed die plan structure schematic diagram on a kind of cylinder head casting die of the present utility model.

Fig. 5 is bed die master TV structure schematic diagram on a kind of cylinder head casting die of the present utility model.

Fig. 6 is a kind of cylinder head casting die upper air through hole distribution schematic diagram of the present utility model.

Fig. 7 is the first air cooling equipment distribution schematic diagram on a kind of cylinder head casting die of the present utility model.

Fig. 8 is exhaust hole distribution schematic diagram on a kind of cylinder head casting die of the present utility model.

Fig. 9 is the second air cooling equipment distribution schematic diagram on a kind of cylinder head casting die of the present utility model.

The specific embodiment

See also Fig. 1 to Fig. 9, inventor of the present utility model be in order to understand the technical solution of the utility model better, below by embodiment particularly, and is described in detail by reference to the accompanying drawings:

see also Fig. 1 and Fig. 2, a kind of cylinder head casting die of the present utility model, comprise first side mould 11, Second Edge mould 12, first end mould 13, the metal pattern die 1 that the second end mould 14 and bed die 15 surround, the air inlet core (not shown) and the exhaust core (not shown) that are provided with the sand core of water jacket (not shown) that is positioned at bed die 15 end faces in the die cavity of metal pattern die 1 and are positioned at described sand core of water jacket end face, the end face of described air inlet core and described exhaust core is provided with rising head core (not shown), described rising head core top is provided with the top satrain relief.

First side mould 11 is provided with several air inlet through holes 111, the die cavity of metal pattern die 1 is communicated with outside, in the die cavity of metal pattern die 1, described air inlet core connects respectively this several air inlet through holes 111, Second Edge mould 12 is provided with several exhaust holes 121, the die cavity of metal pattern die 1 is communicated with outside, and described exhaust core connects respectively this several exhaust holes 121.In Fig. 2, these several exhaust holes 121 are positioned at the A position.

The purpose of design is like this: when molten aluminum silicon alloy carries out when cooling at the die cavity of metal pattern die 1, adopt air extractor on air inlet through hole 111, described air inlet core to be bled, on exhaust hole 121, described exhaust core is bled, be convenient to discharge getting angry of core in the die cavity of metal pattern die 1, prevent cylinder head produce feel suffocated, misrun casting flaw.Core in the die cavity of metal pattern die 1 comprises sand core of water jacket, air inlet core, exhaust core and rising head core.

In addition, four drift angles of bed die 15 also are provided with bed die exhaust hole 151, and the die cavity of metal pattern die 1 is communicated with outside, and four bed die exhaust holes 151 are sealed in the bottom surface of sand core of water jacket.When molten aluminum silicon alloy carries out adopting air extractor to bleed on the cooling through hole 151 of bed die when cooling at the die cavity of metal pattern die 1, be convenient to discharge getting angry of sand core of water jacket in the die cavity of metal pattern die 1, prevent cylinder head produce feel suffocated, the casting flaw such as misrun.

In addition, the bottom of first end mould 11 and the second end mould 12 also is arranged with end parting line venting through hole 10, and the die cavity of metal pattern die 1 is communicated with the outside.The periphery wall of sand core of water jacket will be held 10 sealings of parting line venting through hole.When molten aluminum silicon alloy carries out adopting air extractor to bleed on end parting line venting through hole 10 when cooling at the die cavity of metal pattern die 1, more be convenient to discharge getting angry of sand core of water jacket in the die cavity of metal pattern die 1, prevent cylinder head produce feel suffocated, misrun casting flaw.

In the present embodiment, a kind of cylinder head casting die of the present utility model has also carried out further improvement, is provided with the bed die water cooling plant 152 that is parallel to bed die 15 bottom surfaces in bed die 15, and bed die 15 bottom surfaces are provided with the combustion chamber water cooling plant 153 perpendicular to bed die 15 bottom surfaces.The purpose of design is like this: by the water-cooled to bed die 15, reduce the temperature of bed die 15, make molten aluminum silicon alloy consecutive solidification in the die cavity of metal pattern die 1, feeding is abundant.Obtain cylinder head dense materials degree high, good airproof performance, good mechanical property, dimensional accuracy is high.

In the present embodiment, also be provided with the first air cooling equipment 112 on the outer wall of first side mould 1, the outer wall of Second Edge mould 12 is provided with the second air cooling equipment 122.The first air cooling equipment 112 is exactly N the blind hole that is positioned on first side mould 11 outer walls, the second air cooling equipment 122 is exactly M blind hole on Second Edge mould 12 outer walls. and the purpose of design is like this: by the temperature of air-cooled reduction first side mould 11 and Second Edge mould 12, molten aluminum silicon alloy is consecutive solidification in the die cavity of metal pattern die 1, and feeding is abundant.Obtain cylinder head dense materials degree high, good airproof performance, good mechanical property, dimensional accuracy is high.

In the present embodiment, the first air cooling equipment 112 in the position on first side mould 11 higher than the position of air inlet through hole 111, the second air cooling equipments 122 on Second Edge mould 12 higher than exhaust hole 122.

In the present embodiment, the metal pattern die 1 that has adopted first side mould 11, Second Edge mould 12, first end mould 13, the second end mould 14 and bed die 15 to surround is produced the cylinder head of shape and structure complexity, when having improved the work situation condition, reduce operator's labour intensity, improved production efficiency.Simultaneously, the good cooling effect of metal pattern die 1 has further guaranteed molten aluminum silicon alloy consecutive solidification in the die cavity of metal pattern die 1, and feeding is abundant.Obtain cylinder head dense materials degree high, good airproof performance, good mechanical property, dimensional accuracy is high.

In the present embodiment, the top of first end mould 13 is provided with cup 131, is provided with cross gate 113 in first side mould 11, and cross gate 113 is communicated with by the sprue 132 that is positioned at first end mould 13 with cup 131.Cross gate 113 bottoms are provided with the clearance type ingate 114 of the die cavity that is communicated with metal pattern die 1.Thus, cup 131, sprue 132, cross gate 113 and clearance type ingate 114 have consisted of a casting system, adopt this casting system can avoid alusil alloy solution to produce in casting cycle to splash, turbulent flow and make cylinder head produce the casting flaws such as slag inclusion, pore, cold shut.

In the present embodiment: the using method of a kind of cylinder head casting die of the present utility model comprises the following steps:

Core preparation process: prepare air inlet core and exhaust core with hot box process, prepare sand core of water jacket and rising head core with cold-box process.

Cold-box process is to be after 50~100 purpose roughing sand or reclaimed sand mix in the metal die of special use respectively, to be blown into triethylamine with resinoid bond and particle diameter, resinoid bond is solidified, thereby obtain respectively described sand core of water jacket and described rising head core.Resinoid bond comprises epoxy adhesive, phenolic resin adhesive, and unsaturated polyester binding agent etc.

Hot box process is to be 70~140 purpose precoated sands with particle diameter, is sintered into described air inlet core and exhaust core in temperature is the metal die of 220 ℃-400 ℃.

Preheating step: first side mould 11, Second Edge mould 12, bed die 15, first end mould 13 and the second end mould 14 are arranged on casting machine, and carry out preheating with the heated by natural gas device, 200 ℃-350 ℃ of preheat temperatures.Then dispose rusty stain and the foreign material on first side mould 11, Second Edge mould 12, bed die 15, first end mould 13 and the second end mould 14 surfaces with jetting tool.Spray afterwards releasing agent, prevent that alusil alloy from adhering to.Operation can make that in releasing agent, moisture evaporates rapidly like this, and releasing agent sprays more evenly, obtains the releasing agent layer of one deck densification.If preheat temperature is too high, also can cause releasing agent to peel off.First side mould 11, Second Edge mould 12, bed die 15, first end mould 13 and the second end mould 14 newly come into operation, and need to carry out pickling with sulfuric acid before preheating, to guarantee that releasing agent can be in the adhesion on its surface.

Melting step: alusil alloy is dropped into melt in furnace become molten aluminum silicon alloy, and in the temperature of 700 ℃-750 ℃, by refining, degasification, slagging-off, the operation such as rotten, molten aluminum silicon alloy is processed, obtain clean molten aluminum silicon alloy stand-by.

Lower core step: the end face at bed die 15 is installed described sand core of water jacket, described sand core of water jacket is with bed die exhaust hole 151 sealings on 15 4 drift angles of bed die, then at the end face of described sand core of water jacket, described air inlet core and described exhaust core are installed, then at the end face of described exhaust core and described air inlet core, described rising head core are installed.

The matched moulds step: first side mould 11, Second Edge mould 12, first end mould 13, the second end mould 14 and bed die 15 surround metal pattern die 1, and the periphery wall of described sand core of water jacket is sealed the end parting line venting through hole 10 on first end mould 13 and the end parting line venting through hole on the second end mould 14 10, make the air inlet through hole 111 on described air inlet core connection first side mould 11, described exhaust core connects the exhaust hole 121 on Second Edge mould 12.

Casting step: the cup 131 that the molten aluminum silicon alloy casting of 700~730 ℃ is entered first end mould 13 tops, within the time of 10~13s, molten aluminum silicon alloy passes through the sprue 132 in described first end mould 13 successively, cross gate 113 in first side mould 11, and the clearance type ingate 114 of cross gate 113 bottoms enters the die cavity of metal pattern die 1.

In casting step, the too high cylinder head of molten aluminum silicon alloy temperature is cooling, and slowly crystallization is thick, and mechanical property reduces, and easily forms the defectives such as pore, pin hole; The too low defectives such as misrun, cold shut that easily cause of temperature.In casting step, molten aluminum silicon alloy injects cup 131 must be steady, and the liquid stream of molten aluminum silicon alloy is wanted can not interrupt continuously; When molten aluminum silicon alloy injects cup 131, elder generation slow, rear soon, slow again; Ladle spout should cause oxidation in order to avoid molten aluminum silicon alloy liquid flows through length as far as possible near cup 131, prevents the foundry goods trapped oxide.

Cooling step: cooling through 180~200s, molten aluminum silicon alloy is the cooling foundry goods that becomes in the die cavity of metal pattern die 1, and the top satrain relief at cup 131 and rising head core top carries out afterteeming simultaneously, eliminates the shrinkage cavity defect of foundry goods.

In cooling step, adopt air extractor at air inlet through hole 111 places to the operation of bleeding of described air inlet core, the employing air extractor at exhaust hole 121 places to the operation of bleeding of described exhaust core; With getting angry of the core in the die cavity of discharging metal pattern die 1, prevent that the cylinder head generation from feeling suffocated, misrun casting flaw.

In cooling step, adopt air extractor at bed die exhaust hole 151 places that are positioned at 15 4 drift angles of bed die to the operation of bleeding of described sand core of water jacket, with getting angry of sand core of water jacket in the die cavity of discharging metal pattern die 1, prevent the casting flaws such as the cylinder head generation is felt suffocated, misrun.

In cooling step, adopt end parting line venting through hole 10 places of air extractor on first end mould 13 and the second end mould 14 to the operation of bleeding of described sand core of water jacket, with getting angry of sand core of water jacket in the die cavity of discharging metal pattern die 1, prevent the casting flaws such as the cylinder head generation is felt suffocated, misrun.

In cooling step, pass into cooling water in bed die water cooling plant 152 and combustion chamber water cooling plant 153, the foundry goods in the die cavity of the bed die 15 of metal pattern die 1 and metal pattern die 1 is carried out water-cooled.Make molten aluminum silicon alloy consecutive solidification in the die cavity of metal pattern die 1 become foundry goods, in process of setting, feeding is abundant.

In cooling step, carry out air-cooled operation by the foundry goods in the die cavity of 112 pairs of first side moulds 11 of the first air cooling equipment and metal pattern die 1, carry out air-cooled operation by the foundry goods in the die cavity of 122 pairs of Second Edge moulds 12 of the second air cooling equipment and metal pattern die 1, make molten aluminum silicon alloy consecutive solidification in the die cavity of metal pattern die 1, feeding is abundant.

Die sinking step: foundry goods is taken out from described metal pattern die, remove rising head core, sand core of water jacket, air inlet core and exhaust core in foundry goods, after cast gate, rising head and the machine on the removal foundry goods adds, obtain cylinder head.

Those of ordinary skill in the art will be appreciated that, above embodiment illustrates the utility model, and be not to be used as restriction of the present utility model, as long as in connotation scope of the present utility model, all will drop in claims scope of the present utility model variation, the modification of the above embodiment.

Claims (5)

1. cylinder head casting die, comprise the metal pattern die (1) that first side mould (11), Second Edge mould (12), first end mould (13), the second end mould (14) and bed die (15) surround, be provided with the sand core of water jacket that is positioned at described bed die (15) end face in the die cavity of described metal pattern die (1), and the air inlet core and the exhaust core that are positioned at described sand core of water jacket end face, the end face of described air inlet core and described exhaust core is provided with the rising head core, described rising head core top is provided with the top satrain relief, it is characterized in that:
Described first side mould (11) be provided with several air inlet through holes (111), described air inlet core connects respectively this several air inlet through holes (111), described Second Edge mould (12) is provided with several exhaust holes (121), and described exhaust core connects respectively this several exhaust holes (121).
2. a kind of cylinder head casting die according to claim 1, it is characterized in that: respectively be provided with a bed die exhaust hole (151) on four drift angles of described bed die (15), described bed die exhaust hole (151) is sealed in the bottom surface of described sand core of water jacket.
3. a kind of cylinder head casting die according to claim 1, it is characterized in that: be equipped with end parting line venting through hole (10) on described first end mould (11) and described the second end mould (12), the periphery wall of described sand core of water jacket seals described end parting line venting through hole (10).
4. a kind of cylinder head casting die according to claim 1, it is characterized in that: be provided with the bed die water cooling plant (152) parallel with described bed die (15) bottom surface in described bed die (15), described bed die (15) bottom surface also is provided with the combustion chamber water cooling plant (153) perpendicular to described bed die (15) bottom surface, the outer wall of described first side mould (11) is provided with the first air cooling equipment (112), and the outer wall of described Second Edge mould (12) is provided with the second air cooling equipment (122).
5. the described a kind of cylinder head casting die of any one according to claim 1 to 4, it is characterized in that: the top of described first end mould (13) is provided with cup (131), be provided with cross gate (113) in described first side mould (11), described cross gate (113) bottom is provided with the clearance type ingate (114) of the die cavity that is communicated with described metal pattern die (1), also is provided with the sprue (132) that is communicated with described cup (131) and described cross gate (113) in described first end mould (13).
CN 201220704620 2012-12-19 2012-12-19 Cylinder cover casting die CN202984579U (en)

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Application Number Priority Date Filing Date Title
CN 201220704620 CN202984579U (en) 2012-12-19 2012-12-19 Cylinder cover casting die

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Application Number Priority Date Filing Date Title
CN 201220704620 CN202984579U (en) 2012-12-19 2012-12-19 Cylinder cover casting die

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103658524A (en) * 2013-12-31 2014-03-26 宁波高盛模具制造有限公司 Sand mold die for cylinder cover of engine
CN103878310A (en) * 2012-12-19 2014-06-25 上海爱仕达汽车零部件有限公司 Cylinder cover casting die and casting method
CN103978159A (en) * 2014-05-26 2014-08-13 安徽省恒泰动力科技有限公司 Gating system for cylinder cover of single-cylinder air cooled engine
CN104338902A (en) * 2013-07-26 2015-02-11 爱知机械工业株式会社 Mold apparatus for casting cylinder block, cylinder block and cylinder block casting method
CN105108062A (en) * 2015-08-10 2015-12-02 北京航星机器制造有限公司 Die capable of enhancing exhaust and formation for closed top surface in permanent mould casting for thin-wall castings
CN110947907A (en) * 2019-12-22 2020-04-03 宁波百宏模具有限公司 Automobile cylinder cover die

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103878310A (en) * 2012-12-19 2014-06-25 上海爱仕达汽车零部件有限公司 Cylinder cover casting die and casting method
CN103878310B (en) * 2012-12-19 2015-11-18 上海爱仕达汽车零部件有限公司 A kind of cylinder head casting die and casting method
CN104338902B (en) * 2013-07-26 2017-11-14 爱知机械工业株式会社 Cylinder casting die device, cylinder body and method for casting cylinder body
CN104338902A (en) * 2013-07-26 2015-02-11 爱知机械工业株式会社 Mold apparatus for casting cylinder block, cylinder block and cylinder block casting method
CN103658524A (en) * 2013-12-31 2014-03-26 宁波高盛模具制造有限公司 Sand mold die for cylinder cover of engine
CN103658524B (en) * 2013-12-31 2015-11-11 宁波高盛模具制造有限公司 Sand mold die for cylinder cover of engine
CN103978159B (en) * 2014-05-26 2016-08-24 安徽省恒泰动力科技有限公司 A kind of running gate system of single-cylinder air-cooled engine cylinder cap
CN103978159A (en) * 2014-05-26 2014-08-13 安徽省恒泰动力科技有限公司 Gating system for cylinder cover of single-cylinder air cooled engine
CN105108062A (en) * 2015-08-10 2015-12-02 北京航星机器制造有限公司 Die capable of enhancing exhaust and formation for closed top surface in permanent mould casting for thin-wall castings
CN110947907A (en) * 2019-12-22 2020-04-03 宁波百宏模具有限公司 Automobile cylinder cover die

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Granted publication date: 20130612

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