CN217858679U - Mold core for output planet carrier mold - Google Patents

Abstract

The utility model relates to a technical field of casting mould discloses a mold core for output planet carrier mould, and it includes the model body, and fixedly connected with waters the core on the model body, waters the one end fixedly connected with runner core that the model body was kept away from to the core, and fixedly connected with rising head core on watering the core, fixed surface is connected with the feeding core on the model body. This application has the condition that reduces the product size of pouring and takes place great change and takes place, improves the shaping effect of preparation part.

Description

Mold core for output planet carrier mold

Technical Field

The application relates to the technical field of casting moulds, in particular to a mould core for an output planet carrier mould.

Background

At present, in the manufacturing process of some castings with complex structures, cavities in some complex cavities need to be manufactured through cores, and the cores are commonly called as sand cores and cores; the internal structure of the casting is formed during casting, and the casting is usually made of core sand prepared from raw sand and a binder (water glass, resin and the like) in a core box by hand or machine.

Among the correlation technique, a planet carrier casting mould, including last mould, lower mould and middle mold core, go up and form the die cavity between mould and the lower mould, middle mold core is fixed in the shaping intracavity, goes up and sets up the runner with the shaping chamber intercommunication on the mould, still sets up a plurality of blow vents that are used for exhausting on going up the mould.

In view of the above related technologies, the inventor thinks that when the metal liquid is poured, according to the principle of expansion with heat and contraction with cold, the metal liquid can be contracted in the cooling process of the metal liquid, so that the volume of the liquid is changed, when a product with higher precision is manufactured, after the size is changed greatly, parts are unqualified, and the parts need to be melted again for pouring, which seriously affects the efficiency of a working place.

SUMMERY OF THE UTILITY MODEL

In order to reduce the condition that the product size of pouring takes place great change and take place, improve the shaping effect of preparation part, this application provides an output mold core for planet carrier mould.

The application provides a mold core for output planet carrier mould adopts following technical scheme:

the utility model provides an output planet carrier mold core for mould, includes the model body, fixedly connected with waters the core on the model body, it keeps away from to water the core the one end fixedly connected with runner core of model body, water fixedly connected with rising head core on the core, fixed surface is connected with the feeding core on the model body.

Through adopting above-mentioned technical scheme, the during operation is through last mould, the lower mould forms the shaping chamber with the cooperation of middle mold core, and pour of model body, after the metallic liquid flows into the cavity that is arranged in the casting to water the core, rising head core and feeding core, at the metallic liquid refrigerated in-process, the metallic liquid cooling shrink, make liquid injection shaping intracavity under the dead weight effect of metallic liquid, thereby reach the feeding to the model body, the condition that has reduced the great change of model body size and taken place, but improve the shaping effect of model body, avoided pouring repeatedly, the work efficiency of preparation part has been improved.

Preferably, a first core fixedly connected with the sprue core and a second core fixedly connected with the mold body are respectively formed on two sides of the sprue core by the pouring core, and the first core is higher than the second core.

Through adopting above-mentioned technical scheme, adopt such design can increase the temperature near watering the core through the rising head core, avoid pouring at the in-process that the metal liquid pours and appear blockking up in the cavity department that is used for the shaping to water the core, improve operative installations's convenience, can also make in-process metal liquid of runner core and rising head core can be in the better shaping intracavity of impressing under the effect of gravity, improve the shaping effect of model body.

Preferably, the riser core cross-sectional area increases progressively in a direction towards the runner core.

Through adopting above-mentioned technical scheme, adopt such design on the one hand can be convenient for go up the shaping of mould more, reduce the degree of difficulty of mould in the preparation, on the other hand adopts such design can make the metal liquid flow better.

Preferably, the upper surface of the model body is fixedly connected with a surplus mold core, and the feeding mold core is fixed on the surplus mold core.

Through adopting above-mentioned technical scheme, adopt the surplus core can avoid damaging the model body when demolising the feeding core, improve the shaping effect of model body.

Preferably, the section area of the feeding core is gradually reduced along the direction close to the allowance core.

Through adopting above-mentioned technical scheme, adopt such design on the one hand can increase the weight of upper portion metal liquid to make the model body can carry out the feeding better when the shaping, on the other hand is through reducing the area of contact between feeding core and the model body, thereby can reduce the damage to the model body when dismantling feeding core, improve the shaping effect of model body.

Preferably, the mold body is provided with at least one, and a plurality of the mold bodies are fixedly connected with the sprue core through the pouring gate core.

Through adopting above-mentioned technical scheme, adopt once to pour a plurality ofly, improve the work efficiency of preparation model body.

Preferably, the gate core cross-sectional area decreases progressively in a direction towards the runner core.

Through adopting above-mentioned technical scheme, the staff of being convenient for on the one hand of the runner core that adopts design like this can operate, and on the other hand adopts such design, can make metal liquid can more smoothly get into the shaping intracavity under the effect of dead weight, improves the work efficiency of preparation model body.

Preferably, the surface of the model body is provided with a chilling block.

By adopting the technical scheme, the cold iron can be used for rapidly cooling the model body, so that the work efficiency for manufacturing the model body is improved.

In summary, the present application includes at least one of the following beneficial technical effects:

1. by adopting the feeding core and the riser core, the molten metal is injected into the molding cavity under the action of the dead weight of the molten metal, so that feeding to the mold body is achieved, the occurrence of the condition that the size of the mold body is greatly changed is reduced, repeated pouring is avoided, the working efficiency of manufacturing parts is improved, the temperature of a pouring gate core accessory is also improved by adopting the riser core, the channel blockage of the pouring gate core for molding can be avoided, and the stability of a using device is improved;

2. the height of the first mold core is higher than that of the second mold core, and stepped distribution can be formed, so that on one hand, the metal liquid can more conveniently flow to the forming cavity, and on the other hand, when the metal liquid is cooled, the mold body can be simultaneously fed through the sprue mold core and the riser mold core, and the size accuracy of the mold body is improved;

3. through with feeding core fixed connection on the surplus core, can reduce the damage to the model body when handling feeding core, improve the shaping effect of model body.

Drawings

Fig. 1 is a schematic structural diagram of a mold core for an output planet carrier mold according to an embodiment of the present application.

Fig. 2 is a bottom view of a mold core for an output planet carrier mold according to an embodiment of the present application.

Fig. 3 isbase:Sub>A sectional view taken along linebase:Sub>A-base:Sub>A in fig. 2.

Reference numerals: 1. a model body; 2. performing cold iron; 3. a pouring gate core; 31. a second core; 32. a first core; 4. feeding a mold core; 5. a riser core; 6. a gate core; 7. and (4) allowance of a mold core.

Detailed Description

The present application is described in further detail below with reference to figures 1-3.

The embodiment of the application discloses output planet carrier mold core for mould. Referring to fig. 1 and 2, an output planet carrier mold core for mould, including model body 1, this embodiment adopts the setting of four 1 circumference arrays of model body, model body 1 includes two the same rings, the circumference array has four connecting blocks between two rings, the through-hole has been seted up to the ring between two adjacent connecting blocks, be fixed with a plurality of chills 2 on the model body 1, four are cylindric chills 2 and are fixed in the upper surface of model body 1, and set up with the connecting block one-to-one, three 2 symmetries that are sectorial chills are fixed in the 1 lower surface of model body.

Referring to fig. 1 and 2, a pouring core 3 is fixedly connected to the side wall of the model body 1, a dead head core 5 is fixedly connected to the pouring core 3, the dead head core 5 is in a circular truncated cone shape, the cross-sectional area of the dead head core gradually increases along the direction close to the pouring core 3, the pouring core 3 is respectively formed with a first core 32 fixedly connected with the pouring core 6 and a second core 31 fixedly connected with the model body 1 on the two sides of the dead head core 5, the first core 32 and the second core 31 are both rectangular, the height of the first core 32 is higher than that of the second core 31, the pouring core 3 is far away from the pouring core 6 at the end of the model body 1, the pouring core 6 is in a circular truncated cone shape, the cross-sectional area of the pouring core gradually decreases along the direction close to the pouring core 3, and the pouring core 6 is fixedly connected with the four pouring cores 3.

By adopting the design, on one hand, the temperature of the pouring gate core 3 can be improved by using the riser core 5, so that the phenomenon that a runner is reduced when the molten metal is poured due to the fact that the molten metal is cooled in the pouring gate core 3 can be avoided, the molten metal is not easy to enter the molded body, and the convenience of manufacturing the model body 1 is improved;

on the other hand is connected with rising head core 5 through being divided into two parts of difference in height with watering core 3 respectively, can be with the flow direction mould body that molten metal can be better, can also be at the in-process of molten metal cooling through rising head core 5, reaches the replenishment because the internal contraction that the molten metal expend with heat and contract with cold causes, plays the effect of feeding, reduces to pour the condition emergence that the product size takes place to increase the change, improves the efficiency of preparation spare part.

Referring to fig. 2 and 3, a margin core 7 is fixed on the upper surface of the model body 1 near the inner wall, the margin core 7 is in a circular ring shape, one side of the top of the margin core 7 far away from the pouring gate core 3 is fixedly connected with a feeding core 4, the section of the feeding core 4 is in a rectangular shape, and the section area of the feeding core is gradually reduced along the direction near the margin core 7.

By adopting the design, the feeding core 4 can be used for timely feeding in a metal solution cooling chamber, so that the size error of the model body 1 caused by metal expansion caused by heat and contraction caused by cold is reduced, and the convenience of a manufacturing device is improved;

by adopting the feeding core 4 with the gradually-reduced cross section, on one hand, the volume of the metal solution at the upper part can be increased, so that the downward pressure of the metal solution can be increased, and the feeding effect of the grinding tool body is improved; the contact area with the allowance core 7 can be reduced, so that the later processing of the model body 1 can be more convenient; can avoid producing the damage to model body 1 when demolising feeding core 4 through surplus core 7, only need to carry out a definite amount to surplus core 7 polish just can, guaranteed the integrality of model body 1 and the intensity when using.

The implementation principle of the mold core for the output planet carrier mold is as follows: when pouring is carried out, a forming cavity for casting the model body 1 is formed by matching the upper die, the lower die and the central die core, metal solution is injected into the forming cavity from a pouring gate, and when the metal solution is stored at the positions for forming the feeding core 4 and the dead head core 5, the metal solution is continuously fed for the model body 1 under the action of the dead weight of the metal solution in the gradual cooling process, so that the output planet carrier is manufactured. By adopting the manufacturing method, the device has small size error, reduces the problem of repeated pouring, and can effectively improve the working efficiency of manufacturing parts.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (8)

1. The utility model provides an output planet carrier mold core for mould which characterized in that: the feeding mold comprises a mold body (1), wherein a pouring mold core (3) is fixedly connected to the mold body (1), a pouring mold core (6) is fixedly connected to one end, away from the mold body (1), of the pouring mold core (3), a feeding mold core (5) is fixedly connected to the pouring mold core (3), and a feeding mold core (4) is fixedly connected to the upper surface of the mold body (1).

2. The mold core for the output planet carrier mold according to claim 1, wherein: the pouring gate core (3) is respectively provided with a first core (32) fixedly connected with the pouring gate core (6) and a second core (31) fixedly connected with the model body (1) on two sides of the riser core (5), and the first core (32) is higher than the second core (31).

3. The mold core for the output planet carrier mold according to claim 2, wherein: the cross-sectional area of the riser core (5) is gradually increased along the direction close to the pouring gate core (3).

4. The mold core for the output planet carrier mold according to claim 1, characterized in that: the feeding mold core is characterized in that a surplus mold core (7) is fixedly connected to the upper surface of the mold body (1), and the feeding mold core (4) is fixed to the surplus mold core (7).

5. The mold core for the output planet carrier mold according to claim 4, wherein: the cross-sectional area of the feeding core (4) is gradually reduced along the direction close to the allowance core (7).

6. The mold core for the output planet carrier mold according to claim 1, characterized in that: the mold comprises a plurality of mold bodies (1) and is characterized in that at least one mold body (1) is arranged, and the plurality of mold bodies (1) are fixedly connected with a pouring gate mold core (6) through a pouring gate mold core (3).

7. The mold core for the output planet carrier mold according to claim 1, characterized in that: the cross-sectional area of the gate core (6) decreases progressively in a direction towards the runner core (3).

8. The mold core for the output planet carrier mold according to claim 1, wherein: and a chill (2) is arranged on the surface of the model body (1).

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