CN203018690U

CN203018690U - Engine cylinder pouring mould

Info

Publication number: CN203018690U
Application number: CN 201320054934
Authority: CN
Inventors: 郭静华; 戚春杰; 唐强; 李忠革; 陈宇
Original assignee: LIAONING LONGHUA AUTOMOBILE PARTS MANUFACTURING Co Ltd
Current assignee: LIAONING LONGHUA AUTOMOBILE PARTS MANUFACTURING Co Ltd
Priority date: 2013-01-31
Filing date: 2013-01-31
Publication date: 2013-06-26
Anticipated expiration: 2023-01-31

Abstract

The utility model provides an engine cylinder pouring mould, aiming at solving the problem that an oil way of an engine cylinder is generally integrated with the engine cylinder, and the oil way is set to be complex and variable, so that a pouring mould capable of guaranteeing the strength of the whole structure of a cylinder body is needed when the engine cylinder is poured. According to the technical key points, a box cover is internally and fixedly provided with a body core mould and an edge core mould, cylinder barrel cores are fixedly arranged on the body core mould, one ends of the cylinder barrel cores are fixedly provided with cylinder body dead head cores matched with the cylinder barrel cores, jacket cores are sheathed on the side walls of four cylinder barrel cores, and a lower edge core and a side face edge core are respectively and internally provided with a pouring guide device. The engine cylinder pouring mould has the beneficial effects that the 'large orifice discharge' theory and the 'balanced solidification' theory are used, so that the function of molten iron can be reduced, and the washing to a sand core of the molten iron can be reduced; factors which influence the pouring time can be reduced, and a pouring dead head can be reasonably designed; and the shrinkage porosity in a cast can be reduced; and the technological requirements can be achieved while the structural strength of the cylinder body can be guaranteed.

Description

The cylinder casting mold

Technical field

The utility model relates to engine and makes the field, particularly a kind of engine casting mold for improving the engine cylinder-body casting quality.

Background technology

Along with making rapid progress of automobile product, automobile production enterprise constantly accelerates the exploitation of car load product in continuous competition.Although the face shaping from car body, material and auxiliary equipment all will exert an influence to the performance of motor vehicle, but the heart of automobile---engine, the most vital for performance, no matter from the supply of material should amount, the aspects such as price and Performance Match, all can directly affect the performance indications of vehicle newly developed.

In the process of usually producing, the sand mold price of employing is higher, and production cost is high.Be unsuitable for large batch of production, can't realize volume production.Adopt whole coremaking, then with the technique of core combination, the design of mould is very complicated, has improved the difficulty that core is made.The employing core body is heavier, is difficult for carrying.Adopt the production technology of upright casting bottom filling, can reduce the thermograde of molten iron, improve the mobility of molten iron, make molten iron better fill die cavity.

And the oil circuit of cylinder is common and cylinder is structure as a whole, when the cast engine cylinder block, moulding by casting together, but the oil circuit setting is complicated and changeable, so need a kind of casting mold that can guarantee the cylinder block overall construction intensity when the cast engine cylinder block.

Summary of the invention

The purpose of this utility model is to provide a kind of engine casting mold that adopts the modes such as split coremaking, upright casting rising pouring to improve the engine cylinder-body casting quality.

The technical solution of the utility model is: the main core mold, limit core mold, cylinder barrel core, the limit core, cylinder body camshaft core, cylinder body rising head core, jacket core, housing-case, the cast guider is characterized in that: at the inner stationary body core mold of housing-case and limit core mold, fixing at least four cylinder barrel cores on the main core mold, at the fixing cylinder body rising head core that matches with cylinder barrel core of an end of cylinder barrel core, stationary housing camshaft core below a side of cylinder barrel core, cylinder body rising head core, jacket core is enclosed within on the sidewall of four cylinder barrel cores;

The edge of housing-case is fixed with limit core mold, and fixed edge core in the core mold of limit is installed the cast guider at following core and limit, side in-core; Sprue gate and the limit core of cast guider is in the same level position, and the cup of cast guider passes housing-case and is fixed on outside housing-case.

Housing-case and limit core make and are bolted together.

Cylinder barrel core, the limit core, cylinder body camshaft core, cylinder body rising head core, jacket core is resin sand and makes.

The beneficial effects of the utility model be use " Large Orifice Discharge " theoretical with " Equilibrium Solidification " theory, reduce the kinetic energy of molten iron, and then reduce the washing away of core of molten iron; Reduce the factor that affects the duration of pouring, reasonably design dead head; Reduce the shrinkage porosite of foundry goods inside; When guaranteeing block structure intensity, reach technological requirement.

1. the roughing sand price that adopts of resin sand is low, saves production cost.

2. resin sand is suitable for large batch of production, to realize volume production.

3. adopt split coremaking, then with the technique that core makes up, simplified the design of mould, improved the qualification rate that core is made.

4. adopt split coremaking can alleviate the weight of monomer core, be easy to carrying, save human resources.

5. adopt the production technology of upright casting bottom filling, can reduce the thermograde of molten iron, improve the mobility of molten iron, make molten iron better fill die cavity.

Description of drawings

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

Fig. 2 is the top view of Fig. 1.

Utility model is described in further detail by example below in conjunction with accompanying drawing; but following example is only the utility model example wherein; do not represent the rights protection scope that the utility model limits, rights protection scope of the present utility model is as the criterion with claim.

The specific embodiment

Referring to Fig. 1, at housing-case 1 inner stationary body core mold and limit core mold, fixing at least four cylinder barrel cores 10 on the main core mold, at the fixing cylinder body rising head core 2 that matches with cylinder barrel core of an end of cylinder barrel core, stationary housing camshaft core 9 below a side of cylinder barrel core, cylinder body rising head core, water jacket core retainer plate 5 is on the sidewall of four cylinder barrel cores;

The edge of housing-case is fixed with limit core mold, and fixed edge core in the core mold of limit is at following core 8 and the interior installation cast of limit, side core 4 guider 7; The sprue gate 6 of cast guider and core upper surface below are in the same level position, and the cup 3 of cast guider passes housing-case and is fixed on the housing-case outside.

First four cylinder barrel cores are combined, again with cylinder body rising head core and the combination of cylinder body water jacket core, pick up simultaneously rising head core and jacket core, be enclosed within on cylinder barrel core, respectively cylinder body front end core and rear end of the cylinder block core are being worked good, penetrate the core assembly bolt, pad is placed on bolt, then use the I-shaped spanner with bolted.Again that cylinder body the right core and cylinder body left core group is good after fastening, put the cylinder body gate core well on the cylinder body left core.The cylinder body assembly of sand core is complete.At last housing-case is enclosed within on sand mold, makes the sand mold can not be loose.

Operation principle: with the overhead traveling crane ladle of slinging, shake the ladle handwheel, agio is injected the core chamber, at first molten iron enters the cylinder body sprue of cylinder body left core inside by the cylinder body gate core, molten iron flows to the cylinder body ingate from the cylinder body cross gate of cylinder body left core inside, enter from ingate the die cavity that core forms, finally obtain the finished product cylinder blank.

Claims

1. cylinder casting mold, it comprises: the main core mold, limit core mold, cylinder barrel core, the limit core, cylinder body camshaft core, cylinder body rising head core, jacket core, housing-case, the cast guider, it is characterized in that: at the inner stationary body core mold of housing-case and limit core mold, fixing at least four cylinder barrel cores on the main core mold are at the fixing cylinder body rising head core that matches with cylinder barrel core of an end of cylinder barrel core, stationary housing camshaft core below a side of cylinder barrel core, cylinder body rising head core, jacket core is enclosed within on the sidewall of four cylinder barrel cores;

2. cylinder casting mold according to claim 1, it is characterized in that: described housing-case and limit core make and are bolted together.

3. cylinder casting mold according to claim 1 is characterized in that: described cylinder barrel core, and the limit core, cylinder body camshaft core, cylinder body rising head core, jacket core is resin sand and makes.