CN205324647U

CN205324647U - Cylinder cap foundry goods mould

Info

Publication number: CN205324647U
Application number: CN201620038121.XU
Authority: CN
Inventors: 樊宪国
Original assignee: Global Precision Machinery Co Ltd
Current assignee: Global Precision Machinery Co Ltd
Priority date: 2016-01-15
Filing date: 2016-01-15
Publication date: 2016-06-22
Anticipated expiration: 2026-01-15

Abstract

The utility model discloses a cylinder cap foundry goods mould, including foundry goods and the gating system, the gating system includes the pouring basin, and the lower extreme symmetry of pouring basin is provided with the cross gate, and the cross gate bottom of pouring basin both sides communicates the sprue, and the sprue is connected with the blank pressing rising head through branch's cross gate. The utility model discloses a blank pressing rising head replaces circular rising head, has saved the grinding process of rising head neck, has improved production efficiency, does not just exist to grind to scrap the foundry goods, has avoided the product to grind bad production, has reduced the defective rate of foundry goods. 2.8% cost can be saved to every ton of foundry goods, has reduced manufacturing cost, has strengthened company's core competitiveness. And, owing to do not need to grind, the utility model discloses a foundry goods product can cancel the secondary throw the ball, suitably the extension once throw behind the ball can direct NULL, the packing, twice product had been saved to the centre transport has improved production efficiency, has practiced thrift the cost.

Description

A kind of cylinder head casting mould

Technical field

This utility model belongs to auto parts and components production field, is specifically related to a kind of cylinder head casting mould。

Background technology

In recent years, China's hot investment casting industry develops quickly, and annual newly-increased foundry enterprise is a lot, and competition, the price of product is relatively transparent, enterprise profit space relative decrease。Having investigation display, well-done hot investment casting enterprise profit is less than 30%。Good hot investment casting enterprise, it is desirable to consummate technology and the careful management of science。Hot investment casting enterprise wants the maximization that earns a profit, it is necessary to set about from yield rate and product yield two aspect。Yield rate improves 1%, and hot investment casting cost can reduce by 1% to 2%。Some hot investment casting enterprises average yield rate of nodular iron casting is about 40%, and better enterprise's yield rate can reach more than 50%, it can be seen that, cost disparities is very big。So, want to obtain higher nodular iron casting yield rate, it is necessary to improved operation。Traditional cylinder head casting, places circular rising head and a riser neck in cast top, solves cast-internal shrinkage porosite problem, but after rising head is removed, riser neck can be stayed on foundry goods, it is necessary to is ground off by riser neck through grinding step, not only waste time and energy, and grind bad problem and happen occasionally。

Summary of the invention

For the deficiencies in the prior art, the purpose of this utility model is in that to provide a kind of cylinder head casting mould, it is possible to increase the utilization rate of rising head, improves casting process yield, moreover it is possible to simplify grinding technics, reduces and grind cost。

For achieving the above object, the technical solution adopted in the utility model is: a kind of cylinder head casting mould, including foundry goods and running gate system, described running gate system includes cup, the lower end of cup is symmetrically arranged with cross gate, connecting sprue bottom the cross gate of cup both sides, sprue is connected to blank riser by branch's cross gate。

Further, described sprue is stepped construction, specifically has 3 ladder sections, and the sectional area of sprue tapers into from top to bottom。The sprue of stepped construction, and sprue sectional area tapers into, upper and lower foundry goods can be made to fill type simultaneously, because sprue necessary flow above to meet the flow of 6 foundry goods, the flow of middle straight running channel to meet the flow of 4 foundry goods, and sprue flow below only need to meet 2 foundry goods necessary flow。Stair-stepping design, can avoid following sprue excessive, causes being mixed into of following foundry goods sand washing and gas。

Further, the sprue two ends of described each ladder section are symmetrically arranged with branch's cross gate, and two sprues are provided with 6 branch's cross gates altogether。Each branch running channel is respectively used to the foundry goods of correspondence and carries out filling type。

Further, the cross section of described sprue, cross gate and branch's cross gate is trapezoidal。

Further, described branch cross gate sectional area is 1.3 times of corresponding ladder section sprue sectional area。Bigger cross gate, can make running channel have resistance preferably and skim slag effect。

Further, described blank riser is the square bodily form, and the length of side of rising head is 35mm。

The beneficial effects of the utility model are: this utility model adopts blank riser to substitute circular rising head, and blank riser directly pushes down the edge of housing, eliminates riser neck part。Removing after blank riser, foundry goods does not have the residual of riser neck, eliminates the grinding step of riser neck, improve production efficiency, and be absent from grinding and scrap foundry goods, it is to avoid product grinds bad generation, reduces the fraction defective of foundry goods。Foundry goods per ton can save the cost of 2.8%, reduces production cost, enhances company core competence。Being additionally, since and need not grind, cast product of the present utility model can be made directly inspection, packaging after can cancelling secondary ball blast, ball blast of proper extension, centre eliminates the carrying of twice product, improves production efficiency, has saved cost。

Accompanying drawing explanation

Fig. 1 is structural representation of the present utility model。

Fig. 2 is the cross section view of A-A part。

In figure: 1-sandbox, 2-cross gate, 3-cup, 4-sprue, 5-blank riser, 6-foundry goods, 7-branch cross gate。

Detailed description of the invention

Below in conjunction with the drawings and the specific embodiments, the utility model is described in further detail。

As shown in the figure: a kind of cylinder head casting mould, including foundry goods 6 and running gate system, described running gate system includes funnel shaped cup 3, the lower end of cup 3 is symmetrically arranged with cross gate 2, and cross gate 2 is trapezoidal, connects sprue 4 bottom the cross gate 2 of cup 3 both sides, sprue 4 is connected to the blank riser 5 of the square bodily form by branch's cross gate 7, blank riser 5 is pressed in foundry goods 6 shell rim, and wherein, the length of side of square bodily form blank riser is 35mm。

Each sandbox 1 is inner arranges two sprues 4, and sprue 4 is specially the stepped construction with 3 ladder sections, and the sectional area of sprue 4 tapers into from top to bottom。Sprue 4 two ends of each ladder section are symmetrically arranged with branch's cross gate 7, and two sprues 4 are provided with 6 branch's cross gates altogether。The sectional area of described branch cross gate 7 is 1.3 times of corresponding ladder section sprue 4 sectional area。

The foregoing is only preferred embodiment of the present utility model, be not the restriction to utility model。The change made in essential scope of the present utility model of those of ordinary skill in the art, remodeling, interpolation or replacement, also should belong to protection domain of the present utility model。

Claims

1. a cylinder head casting mould, including foundry goods and running gate system, it is characterised in that: described running gate system includes cup, and the lower end of cup is symmetrically arranged with cross gate, connecting sprue bottom the cross gate of cup both sides, sprue is connected to blank riser by branch's cross gate。

2. cylinder head casting mould according to claim 1, it is characterised in that: described sprue is stepped construction, and sprue sectional area diminishes from top to bottom successively。

3. cylinder head casting mould according to claim 2, it is characterised in that: described sprue is divided into 3 ladder sections。

4. cylinder head casting mould according to claim 3, it is characterised in that: the sprue two ends of described each ladder section are symmetrically arranged with branch's cross gate。

5. cylinder head casting mould according to claim 4, it is characterised in that: said two sprue is provided with 6 branch's cross gates altogether。

6. the cylinder head casting mould according to claim 4 or 5, it is characterised in that: the cross section of described sprue, cross gate and branch's cross gate is trapezoidal。

7. the cylinder head casting mould according to claim 4 or 5, it is characterised in that: described branch cross gate sectional area is 1.3 times of corresponding ladder section sprue sectional area。

8. the cylinder head casting mould according to any one of claim 1 to 5, it is characterised in that: described blank riser is the square bodily form。

9. cylinder head casting mould according to claim 8, it is characterised in that: the length of side of described square bodily form rising head is 35mm。