CN203725736U

CN203725736U - Engine cylinder head mold

Info

Publication number: CN203725736U
Application number: CN201420122993.5U
Authority: CN
Inventors: 王宗明; 王皓
Original assignee: CHONGQING GAOKIN INDUSTRY Co Ltd
Current assignee: CHONGQING GAOKIN INDUSTRY Co Ltd
Priority date: 2014-03-17
Filing date: 2014-03-17
Publication date: 2014-07-23
Anticipated expiration: 2024-03-17

Abstract

The utility model relates to an engine cylinder head mold. The engine cylinder head mold comprises an upper mold and a lower mold, wherein the upper mold is provided with four core pulling structures, i.e. a core pulling structure I, a core pulling structure II, a core pulling structure III and a core pulling structure IV; the lower mold comprises a lower mold holder, a lower mold core which is arranged in the lower mold holder and a pouring gate sleeve which is arranged on the bottom of the lower mold core; the lower mold is provided with three core pulling structures, i.e. a core pulling structure V, a core pulling structure VI and a core pulling structure VII; a lower mold core is arranged in the lower mold, and the lower mold core is provided with a funnel-shaped sprue and a salix-leaf-shaped cross gate; a water passage and an air passage of an air cylinder head are formed by a sand core, and the core pulling structure IV, the core pulling structure V and the core pulling structure VII are respectively provided with an air groove.

Description

Engine cylinder head mould

Technical field

The utility model relates to a kind of mould, concrete, relates to a kind of engine cylinder head mould.

Background technology

There are seven pulled core structures in engine cylinder head low pressure molding outside, and the water channel of cylinder head, air flue be by core moulding, cylinder head mould structure complexity, and core positioning difficulty is large, and the gas of core burning is easily involved in aluminium liquid, makes foundry goods produce pore.While adopting existing mould to produce, in shunting bag, there is solidification phenomenon in aluminium liquid, think it is because shunting containing amount is too little, the too fast institute of aluminium liquid heat radiation extremely, so wrap and increased by four heating tubes in shunting, but to solidify appear again in aluminium liquid in sprue bush, think it is because sprue bush capacity is too little, dispel the heat too fast, aluminium liquid rises and occurs solidifying less than die cavity.

Utility model content

In prior art, engine cylinder head die casting system architecture is unreasonable, causes occurring in casting process the technical problem of aluminium liquid solidification phenomenon, and the purpose of this utility model is to provide a kind of engine cylinder head mould, the funnel shaped sprue quantity of heat storage of this mould is large, and aluminium liquid is difficult for solidifying; The cross gate of mould wicker leaf shape can make foundry goods pore-free, has ensured mechanical property and the air-tightness of foundry goods.

To achieve these goals, the technical solution of the utility model is:

A kind of engine cylinder head mould, comprising: upper die and lower die, and described patrix is provided with four pulled core structures, is respectively pulled core structure I, pulled core structure II, pulled core structure III and pulled core structure IV; Described counterdie comprises die shoe, is arranged on the lower mold core in die shoe and is arranged on the sprue bush of lower mold core bottom; Described counterdie is provided with three pulled core structures, is respectively pulled core structure V, pulled core structure VI, pulled core structure VII; In counterdie, be provided with lower mold core, in described lower mold core, have the cross gate of funnel shaped sprue and wicker leaf shape; The water channel of cylinder head and air flue are by core moulding, and described pulled core structure IV, all has air drain in pulled core structure V and pulled core structure VII.

Further, described sprue bush adopts pottery to make.

Useful technique effect of the present utility model is:

Engine cylinder head mould of the present utility model, its funnel shaped sprue quantity of heat storage is large, and aluminium liquid is difficult for solidifying; The cross gate of mould wicker leaf shape can make foundry goods pore-free, has ensured mechanical property and the air-tightness of foundry goods; In addition, in aluminium liquid cooling but, the aluminium liquid cooling in the aluminium liquor ratio die cavity in sprue and cross gate is slow, to foundry goods reach feeding effect, aluminium in die cavity is organized finer and close, improved product quality.

Brief description of the drawings

Fig. 1 is perspective view of the present utility model;

Fig. 2 is front view of the present utility model;

Fig. 3 is the structural representation of the utility model counterdie;

Fig. 4 is the structural representation of the utility model counterdie cast gate;

Reference numeral

1-pulled core structure I; 2-pulled core structure II; 3-pulled core structure III; 4-pulled core structure IV; 6-die shoe;

7-lower mold core; 8-sprue bush; 9-pulled core structure V; 10-pulled core structure VI; 11-pulled core structure VII;

12-sprue; 13-cross gate.

Detailed description of the invention

Below in conjunction with accompanying drawing, detailed description of the invention of the present utility model is described in further details.

Fig. 1 is perspective view of the present utility model, as shown in Figure 1, and engine cylinder head mould of the present utility model, comprise: upper die and lower die, described patrix is provided with four pulled core structures, is respectively pulled core structure I 1, pulled core structure II 2, pulled core structure III 3 and pulled core structure IV 4;

As shown in Figures 2 and 3, described counterdie comprises die shoe 6, is arranged on the lower mold core 7 in die shoe 6 and is arranged on the sprue bush 8 of lower mold core bottom; Described counterdie is provided with three pulled core structures, is respectively pulled core structure V 9, pulled core structure VI 10 and pulled core structure VII 11; In counterdie, be provided with lower mold core 7, in described lower mold core 7, have the cross gate 13 of funnel shaped sprue 12 and wicker leaf shape; The water channel of cylinder head and air flue are by core moulding, and described pulled core structure IV 4, all has air drain in pulled core structure V 9 and pulled core structure VII 11.

Adopt engine cylinder head mould of the present utility model to add man-hour, aluminium liquid steadily rises up into die cavity from bottom to top, orderly the getting rid of along air drain from die cavity of smog of the air in die cavity and core burning, when molten metal is cooling, aluminium liquid cooling in aluminium liquor ratio die cavity in running channel is slow, to foundry goods reach feeding effect, thereby make aluminium in die cavity organize finer and close.

In the present embodiment, described sprue bush 8 adopts pottery to make.8 heat radiations of pottery sprue bush are slow, strengthened the feeding effect of running channel.

Finally explanation is, above embodiment is only unrestricted in order to the technical solution of the utility model to be described, although the utility model is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can modify or be equal to replacement the technical solution of the utility model, and not departing from aim and the scope of technical solutions of the utility model, it all should be encompassed in the middle of claim scope of the present utility model.

Claims

1. an engine cylinder head mould, comprising: upper die and lower die, it is characterized in that, and described patrix is provided with four pulled core structures, is respectively pulled core structure I (1), pulled core structure II (2), pulled core structure III (3) and pulled core structure IV (4); Described counterdie comprises die shoe (6), is arranged on the lower mold core (7) in die shoe (6) and is arranged on the sprue bush (8) of lower mold core bottom; Described counterdie is provided with three pulled core structures, is respectively pulled core structure V (9), pulled core structure VI (10), pulled core structure VII (11); In counterdie, be provided with lower mold core (7), in described lower mold core (7), have the cross gate (13) of funnel shaped sprue (12) and wicker leaf shape; The water channel of cylinder head and air flue are by core moulding, and described pulled core structure IV (4), all has air drain in pulled core structure V (9) and pulled core structure VII (11).

2. engine cylinder head mould according to claim 1, is characterized in that, described sprue bush (8) adopts pottery to make.