CN213496351U

CN213496351U - Mold core capable of overcoming cold shrinkage

Info

Publication number: CN213496351U
Application number: CN202022327027.5U
Authority: CN
Inventors: 周勇; 钱晓军
Original assignee: Wuxi Zhongxin Mould Technology Co ltd
Current assignee: Wuxi Zhongxin Mould Technology Co ltd
Priority date: 2020-10-19
Filing date: 2020-10-19
Publication date: 2021-06-22
Anticipated expiration: 2030-10-19

Abstract

The utility model discloses a mold core for overcoming cold shrinkage, which comprises a fixed mold and a movable mold, wherein the movable mold is arranged above the fixed mold in a matching way, first grooves are equidistantly arranged on the upper surface of the fixed mold, square grooves are arranged on the surface of the first grooves, convex blocks are fixedly connected with the surfaces of the square grooves, first chills are arranged on the surfaces of the first grooves in a matching way, U-shaped grooves are arranged on the surfaces of the square grooves, a plurality of connecting grooves are arranged on the surfaces of the U-shaped grooves, a plurality of through holes are arranged on the side wall of the fixed mold, one of the through holes is communicated with the connecting grooves, the utility model discloses a mold closing device for closing the fixed mold and the movable mold, precoated sand is injected from one of the through holes and enters the inside of a mold cavity formed by the mold closing of the fixed mold and the movable mold through the connecting grooves, after heating and hardening, the sand core, the first, feeding is carried out, the structure is simple, and the practicability is strong.

Description

Mold core capable of overcoming cold shrinkage

Technical Field

The utility model relates to a booster technical field specifically is an overcome cold mold core that contracts.

Background

Supercharging is a technique of compressing air in advance before the air is supplied into a cylinder to increase the air density and increase the intake air amount. Aims at increasing the aeration quantity, improving the power, improving the economy and improving the discharge.

According to the requirement of casting technology, some parts of the turbine shell of the supercharger component are easy to produce shrinkage defects, and the parts can not be fed by a riser.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an overcome cold mold core that contracts to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides an overcome cold mold core of contracting, includes cover half and movable mould, the movable mould is installed in the top cooperation of cover half, first recess has been seted up to the upper surface equidistance of cover half, square groove has been seted up on the surface of first recess, the fixed surface in square groove is connected with the lug, first chill is installed to the surface cooperation of first recess, the U-shaped groove has been seted up on the surface in square groove, a plurality of spread grooves have been seted up on the surface in U-shaped groove, a plurality of through-holes have been seted up to the lateral wall of cover half, one of them the through-hole all communicates with a plurality of spread grooves, the second recess has been seted up to the lower surface equidistance of movable mould, the second chill is installed in the surface cooperation of second recess, and the second chill has two, the movable mould lower surface is.

Preferably, ejector rod holes are formed in the surfaces of the first groove and the second groove, and the number of the ejector rod holes is two.

Preferably, the surfaces of the fixed die and the movable die are symmetrically provided with positioning holes, and the surfaces of the positioning holes are connected with positioning columns in a sliding mode.

Preferably, the surface of the first groove and the surface of the second groove are fixedly connected with electromagnets, the first chilling block and the second chilling block are adsorbed on the surfaces of the electromagnets, and the first chilling block and the second chilling block are made of HT 250.

Preferably, the surface of the fixed die, which is far away from the first groove, and the surfaces of the movable die and the case second groove are provided with mounting holes.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses carry on spacingly by the reference column between cover half and the movable mould, guarantee its complex compactness, it is further, the electromagnetism iron circular telegram adsorbs first chill and second chill, cooperate it with spare part, cover half and movable mould carry out the compound die, kick into tectorial membrane sand from one of them through-hole, inside getting into the die cavity that cover half and movable mould compound die formed through the spread groove, after the heat hardening, the psammitolite becomes a whole with first chill and second chill, reach the effect of going into the psammitolite with the chill package, carry out the feeding, after carrying out the feeding, pour into the coolant liquid through other through-holes, get into from through-hole one end, flow from the other end, cool off cover half and movable mould fast, and then carry out the feeding of next spare part.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the fixed mold of the present invention;

FIG. 3 is a schematic view of the movable mold of the present invention;

FIG. 4 is a schematic side view of the fixed mold of the present invention;

fig. 5 is the side view structure diagram of the cover half of the utility model.

In the figure: 1. fixing a mold; 2. moving the mold; 3. a first groove; 4. a square groove; 5. a bump; 6. a first chill; 7. a U-shaped groove; 8. connecting grooves; 9. a through hole; 10. a second groove; 11. a second chill; 12. a jack rod hole; 13. positioning holes; 14. an electromagnet; 15. mounting holes; 16. a protrusion; 17. and a positioning column.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-5, a mold core for overcoming cold shrinkage comprises a fixed mold 1 and a movable mold 2, the movable mold 2 is installed above the fixed mold 1 in a matching manner, first grooves 3 are equidistantly formed in the upper surface of the fixed mold 1, square grooves 4 are formed in the surfaces of the first grooves 3, bumps 5 are fixedly connected to the surfaces of the square grooves 4, first chills 6 are installed on the surfaces of the first grooves 3 in a matching manner, U-shaped grooves 7 are formed in the surfaces of the square grooves 4, a plurality of connecting grooves 8 are formed in the surfaces of the U-shaped grooves 7, a plurality of through holes 9 are formed in the side wall of the fixed mold 1, one through hole 9 is communicated with the plurality of connecting grooves 8, second grooves 10 are equidistantly formed in the lower surface of the movable mold 2, second chills 11 are fittingly installed on the surfaces of the second grooves 10, two second chills 11 are provided, and a protrusion 16 is fixedly connected to the lower surface of the movable mold 2 beside the second grooves, the process of closing the mold of the movable mold 2 and the fixed mold 1 is similar to that of the existing injection mold, and the working principle is the same.

Referring to fig. 2 and 3, two ejector rod holes 12 are formed on the surfaces of the first groove 3 and the second groove 10, so that the parts inside the mold cavity can be ejected conveniently.

Referring to fig. 2 and 3, positioning holes 13 are symmetrically formed in the surfaces of the fixed mold 1 and the movable mold 2, and positioning posts 17 are slidably connected to the surfaces of the positioning holes 13, so that the fixed mold 1 and the movable mold 2 can be conveniently matched.

Referring to fig. 2 and 3, the electromagnets 14 are fixedly connected to the surfaces of the first groove 3 and the second groove 10, the first chiller 6 and the second chiller 11 are both adsorbed to the surfaces of the electromagnets 14, and the first chiller 6 and the second chiller 11 are both made of HT250, so that the first chiller 6 and the second chiller 11 can be conveniently mounted and fixed and can be conveniently matched with parts.

Referring to fig. 2 and 3, the surface of the fixed mold 1 away from the first groove 3 and the surfaces of the movable mold 2 and the case second groove 10 are both provided with mounting holes 15, which is convenient for mounting the fixed mold 1 and the movable mold 2.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an overcome cold mold core that contracts, includes cover half (1) and movable mould (2), its characterized in that are installed in the cooperation of the top of cover half (1): first grooves (3) are formed in the upper surface of the fixed die (1) at equal intervals, square grooves (4) are formed in the surface of the first grooves (3), the surface of the square groove (4) is fixedly connected with a convex block (5), the surface of the first groove (3) is provided with a first chilling block (6) in a matching way, the surface of the square groove (4) is provided with a U-shaped groove (7), the surface of the U-shaped groove (7) is provided with a plurality of connecting grooves (8), the side wall of the fixed die (1) is provided with a plurality of through holes (9), one of the through holes (9) is communicated with a plurality of connecting grooves (8), second grooves (10) are arranged on the lower surface of the movable mold (2) at equal intervals, a second chilling block (11) is arranged on the surface of the second groove (10) in a matching way, and the number of the second chills (11) is two, and the lower surface of the movable mould (2) is fixedly connected with a bulge (16) beside the second groove (10).

2. The mold core against cold shrinkage of claim 1, wherein: ejector rod holes (12) are formed in the surfaces of the first groove (3) and the second groove (10), and the number of the ejector rod holes (12) is two.

3. The mold core against cold shrinkage of claim 1, wherein: locating holes (13) are symmetrically formed in the surfaces of the fixed die (1) and the movable die (2), and locating columns (17) are connected to the surfaces of the locating holes (13) in a sliding mode.

4. The mold core against cold shrinkage of claim 1, wherein: the surface of first recess (3) and second recess (10) all fixedly connected with electro-magnet (14), first chill (6) and second chill (11) all adsorb on the surface of electro-magnet (14), the material of first chill (6) and second chill (11) is HT 250.

5. The mold core against cold shrinkage of claim 1, wherein: and mounting holes (15) are formed in the surface of the fixed die (1) far away from the first groove (3) and the surfaces of the movable die (2) and the case second groove (10).