CN203764894U - Exhaust riser of solid camshaft casting die - Google Patents

Exhaust riser of solid camshaft casting die Download PDF

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Publication number
CN203764894U
CN203764894U CN201420118446.XU CN201420118446U CN203764894U CN 203764894 U CN203764894 U CN 203764894U CN 201420118446 U CN201420118446 U CN 201420118446U CN 203764894 U CN203764894 U CN 203764894U
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CN
China
Prior art keywords
matrix
narrow slit
boss
narrow
rising head
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.)
Expired - Lifetime
Application number
CN201420118446.XU
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Chinese (zh)
Inventor
何勇
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
CHENGDU JINDING PRECISION CASTING Co Ltd
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CHENGDU JINDING PRECISION CASTING Co Ltd
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Filing date
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Priority to CN201420118446.XU priority Critical patent/CN203764894U/en
Application granted granted Critical
Publication of CN203764894U publication Critical patent/CN203764894U/en
Anticipated expiration legal-status Critical
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Abstract

The utility model discloses an exhaust riser of a solid camshaft casting die. A riser matrix consists of a semi-cylindrical upper matrix and a semi-cylindrical lower matrix; a trapezoidal narrow-slit boss is arranged on the end surface of one side of the upper matrix; fractures are formed in two sides of the narrow-slit boss, and a narrow-slit horizontal end surface and a narrow-slit vertical end surface are also arranged on the narrow-slit boss; the upper matrix is also provided with an exhaust needle insertion hole; a plurality of gaps are formed in parts, close to the two sides of the narrow-slit boss, of the upper matrix and the lower matrix. In casting, the exhaust riser and an exhaust needle are combined for use. According to the exhaust riser, air can be exhausted from a cavity in casting, so that air holes of castings can be effectively prevented from being formed in casting; the plurality of gaps are formed in parts, close to the two sides of the narrow-slit boss, of the matrix, a sand mold can have certain strength at the position and further delay collapse, and the rate of cam cast finished products is high.

Description

A kind of solid camshaft casting die exhaust rising head
Technical field
The utility model belongs to casting device, is specifically related to a kind of solid camshaft casting die exhaust rising head device that can prevent pore.
Background technology
Casting, is that Metal Melting is smelt and meets necessarily required liquid and water in casting mold, obtains the technical process of the foundry goods (part or blank) of reservation shape, size and performance through cooled and solidified, after leveling processing.Casting is one of fundamental technology of modern mechanical manufacturing industry, and the development of foundry machinery industry indicates a national production strength.The blank of Foundry Production is with low cost, for part complex-shaped, that particularly have complicated inner cavity, more can demonstrate its economy; Its adaptability is wider simultaneously, and has good comprehensive mechanical performance.
Rising head is for avoiding foundry goods to occur that defect is attached to the supplementary device of Casting Equipment top or side, during casting, need to arrange exhaust passage at rising head top.General more general method is after moulding completes, and at sand rising head or riser buss top, adopts drill rod or electric drill directly to punch steam vent.This mode of beating steam vent, discharging port surface especially floor sand layer segment is quite coarse, the loose sand distributing is more, cannot depend on labor cleaning at all, and under gas shock under the vibration of the external environment such as mould turnover and mould assembling or in pour steel process, Can Shahuicong dead head top clan enters in sand mo(u)ld and causes sand hole of cast.
Utility model content
The purpose of this utility model is to provide a kind of solid camshaft casting die exhaust rising head, this rising head is placed on mould, has saved the operation that the mould later stage beats steam vent, has greatly reduced the generation of casting sand hole.
For achieving the above object, technical solution adopted in the utility model is:
Rising head matrix is comprised of semi-cylindrical upper matrix and semi-cylindrical lower substrate; Upper matrix one side end face is provided with narrow slit boss, narrow slit boss to be shaped as narrow slit trapezoidal; The both sides of narrow slit boss arrange fracture, are also provided with the horizontal end face of narrow slit and perpendicular end surface on narrow slit boss, and the height of perpendicular end surface is suitable with camshaft mold shaft tail radius; On upper matrix, be also provided with exhaust needle jack; Upper matrix and lower substrate are provided with a plurality of breach near narrow slit two side portions.
Preferably, horizontal ends face tilt is in the axis of upper matrix.
Preferably, upper matrix and lower substrate material therefor are low Heat Conduction Material.
Preferably, the diameter of matrix is 35~45 millimeters, and length is 35~45 millimeters.
Preferably, the both sides of narrow slit boss arrange fracture.
The beneficial effect that this solid camshaft casting die exhaust rising head produces is:
1, narrow slit boss is set on rising head, during casting, in die cavity, air can be discharged from narrow slit boss, forms bleb in the time of can effectively preventing from casting;
2, matrix is provided with a plurality of breach near narrow slit boss two side portions, and sand mold has some strength herein and postpones defeated and dispersedly, and cam qualified casting is higher;
3, narrow slit perpendicular end surface is suitable with camshaft mold shaft tail radius, and while filling type, camshaft die cavity iron liquid liquid level top keeps unimpeded state with rising head all the time, forms bleb in the time of can effectively preventing from casting.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
The specific embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present utility model is described in further detail.
As shown in Figure 1, rising head matrix is comprised of semi-cylindrical upper matrix 1 and semi-cylindrical lower substrate 2; Upper matrix 1 one side end faces are provided with narrow slit boss 5, and being shaped as of narrow slit boss 5 is trapezoidal; The both sides of narrow slit boss 5 arrange fracture 6, and during casting, in die cavity, air can be discharged from narrow slit boss, forms bleb in the time of can effectively preventing from casting; On narrow slit boss 5, be also provided with horizontal end face 7 and perpendicular end surface 8; Upper matrix 1 and lower substrate 2 are provided with a plurality of breach 3 near narrow slit boss 5 two side portions, and sand mold has some strength herein and postpones defeated and dispersedly, and cam qualified casting is higher.On upper matrix 1, be also provided with exhaust needle jack 4, during casting, this exhaust emits hole to be combined with exhaust needle 9.
The preferred a kind of embodiment of this exhaust rising head is, horizontal end face 7 favours the axis of matrix 1, and rising head more easily takes out from die cavity.
The preferred a kind of embodiment of this exhaust rising head is, upper matrix 1 and lower substrate 2 material therefors are low Heat Conduction Material, compares with the rising head that common material is made, and hot to cover sand easier.
The preferred a kind of embodiment of this exhaust rising head is, the diameter of matrix is 35~45 millimeters, and length is 35~45 millimeters.
The preferred a kind of embodiment of this exhaust rising head is, the both sides of narrow slit boss 5 arrange fracture, raps rising head and can realize the immediately separated of rising head and camshaft while having cast.
Above-mentioned embodiment is used for the utility model of explaining; rather than the utility model is limited; in the protection domain of spirit of the present utility model and claim, any modification and change that the utility model is made, all fall into protection domain of the present utility model.

Claims (5)

1. a solid camshaft casting die exhaust rising head, is characterized in that: rising head matrix is comprised of semi-cylindrical upper matrix (1) and semi-cylindrical lower substrate (2); Upper matrix (1) one side end face is provided with narrow slit boss (5), narrow slit boss (5) to be shaped as narrow slit trapezoidal; The both sides of narrow slit boss (5) arrange fracture (6), are also provided with the horizontal end face of narrow slit (7) and perpendicular end surface (8) on narrow slit boss (5), and the height of perpendicular end surface (8) is suitable with camshaft mold shaft tail radius; On upper matrix (1), be also provided with exhaust needle jack (4); Upper matrix (1) and lower substrate (2) are provided with a plurality of breach (3) near narrow slit two side portions.
2. die venting rising head according to claim 1, is characterized in that: described horizontal end face (7) favours the axis of matrix (1).
3. die venting rising head according to claim 1, is characterized in that: described upper matrix (1) and lower substrate (2) material therefor are low Heat Conduction Material.
4. die venting rising head according to claim 1 and 2, is characterized in that: the diameter of described upper matrix (1) and lower substrate (2) is 35~45 millimeters, and length is 35~45 millimeters.
5. die venting rising head according to claim 1 and 2, is characterized in that: the both sides of described narrow slit boss (5) arrange fracture.
CN201420118446.XU 2014-03-17 2014-03-17 Exhaust riser of solid camshaft casting die Expired - Lifetime CN203764894U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420118446.XU CN203764894U (en) 2014-03-17 2014-03-17 Exhaust riser of solid camshaft casting die

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420118446.XU CN203764894U (en) 2014-03-17 2014-03-17 Exhaust riser of solid camshaft casting die

Publications (1)

Publication Number Publication Date
CN203764894U true CN203764894U (en) 2014-08-13

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201420118446.XU Expired - Lifetime CN203764894U (en) 2014-03-17 2014-03-17 Exhaust riser of solid camshaft casting die

Country Status (1)

Country Link
CN (1) CN203764894U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104226922A (en) * 2014-08-20 2014-12-24 安徽新宁装备股份有限公司 Horizontal parting iron-type sand covering modeling system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104226922A (en) * 2014-08-20 2014-12-24 安徽新宁装备股份有限公司 Horizontal parting iron-type sand covering modeling system
CN104226922B (en) * 2014-08-20 2018-02-02 安徽新宁装备股份有限公司 A kind of horizontal parting Iron Mould Coated Sand moulding system

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