CN214185188U

CN214185188U - Novel die-casting die structure

Info

Publication number: CN214185188U
Application number: CN202022356186.8U
Authority: CN
Inventors: 唐典均
Original assignee: Chongqing Boao Mg Al Manufacuture Co ltd
Current assignee: Chongqing Boao Mg Al Manufacuture Co ltd
Priority date: 2020-10-21
Filing date: 2020-10-21
Publication date: 2021-09-14
Anticipated expiration: 2030-10-21

Abstract

The utility model discloses a novel die casting die structure, including cover half and movable mould, cover half and movable mould are just to setting up its characterized in that: the inner side of movable mould is equipped with the core, and the inner side of cover half is equipped with the die cavity, core and die cavity phase-match, and the core stretches into the die cavity, forms the die-casting region between core and the die cavity, and the upper surface of movable mould is equipped with the drawing of patterns spacing groove, and the drawing of patterns spacing groove is close to the core, and the drawing of patterns spacing groove is put through with the die-casting region. Adopt the utility model discloses a novel die casting die structure is equipped with the drawing of patterns spacing groove at the upper surface of movable mould, when guaranteeing the cover half separation, the drawing of patterns spacing groove of movable mould upper surface can also continue to carry on spacingly to the die casting, prevents to have the gap between the side that the die casting is close to branch mould line position and the core side of mould.

Description

Novel die-casting die structure

Technical Field

The utility model relates to a die casting die, concretely relates to novel die casting die structure.

Background

The basic process of the high-pressure die-casting process is that molten metal is cast at low speed or high speed and filled into a cavity of a die, the die is provided with a movable cavity surface, and the die is pressed and forged along with the cooling process of the molten metal, so that the defects of shrinkage cavity and shrinkage porosity of a blank are eliminated, the internal structure of the blank reaches broken crystal grains in a forging state, and the comprehensive mechanical property of the blank can be obviously improved.

When molten metal is crystallized and solidified under higher pressure, the die is opened to enable the fixed die to be separated from the die casting, and the die casting is not ejected out of the movable die side of the die, the side face, close to the parting line position, of the die casting is in a free state, the free side face of the die casting can deform due to shrinkage of the bottom face, the die casting is in the free state at the parting line position, and a gap is formed between the die casting and the movable die side of the die due to the fact that the die casting deforms under the influence of shrinkage of the bottom face.

How to reduce and control the deformation of the thin-wall parts is a big difficulty, and particularly for the die casting with free deep-cavity opening structure, the difficulty is more obvious and difficult to solve.

The prior art has the defect that after the fixed die is separated, the side surface of the die casting close to the die parting line is influenced by the shrinkage of the bottom surface of the die casting, and a gap is formed between the die casting and the movable die side of the die.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model provides a novel die casting die structure helps going on further spacingly to the mould, and the mould takes place to warp when preventing that the cover half from leaving.

The technical scheme is as follows:

the utility model provides a novel die casting die structure, its key lies in, including cover half and movable mould, the cover half with the movable mould is just to setting up its characterized in that: a core is arranged on the inner side surface of the movable die, a cavity is arranged on the inner side surface of the fixed die, the core is matched with the cavity, the core extends into the cavity, and a die-casting area is formed between the core and the cavity;

the upper surface of movable mould is equipped with the drawing of patterns spacing groove, the drawing of patterns spacing groove is close to the core, drawing of patterns spacing groove with the regional switch-on of die-casting.

The effect of adopting above scheme: the upper surface of the movable mould is provided with the demoulding limiting groove, so that when the fixed mould is separated, the demoulding limiting groove on the upper surface of the movable mould can further limit the die casting, and a gap is prevented from being formed between the side surface of the die casting, which is close to the parting line position, and the core side of the mould.

The arc-shaped transition of the groove bottom of the limiting groove forms an R angle.

The radius of the R angle is 0.5 mm.

The die-casting die comprises a die core, a die cavity, a die-casting area and a demolding limiting groove, wherein the die core is in a cube shape, two opposite side faces of the die core are attached to the die cavity, the die-casting area with a U-shaped section is formed between the die core and the die cavity, and the demolding limiting groove is communicated with the corresponding die-casting area.

The side wall of the mold core is provided with a plurality of shaping grooves, all the shaping grooves are positioned in the die-casting area, all the shaping grooves are uniformly distributed in the corresponding die-casting area, and all the shaping grooves are communicated with the inner side surface of the mold core;

the die-casting die is characterized in that a plurality of shaping convex blocks are arranged at included angles between the inner wall of the cavity and the bottom surface of the cavity, the shaping convex blocks correspond to the shaping grooves one to one, a reinforcing area is formed between the shaping convex blocks and the corresponding shaping grooves, and the reinforcing area is located in the die-casting area. The advantage of adopting above technical scheme is that can form the reinforcing area on the side of die casting.

The shaping groove is in a semi-conical shape, and the conical bottom of the shaping groove is communicated with the upper surface of the mold core.

Has the advantages that: the utility model discloses be equipped with the drawing of patterns spacing groove at the upper surface of movable mould, when guaranteeing the cover half separation, the drawing of patterns spacing groove of movable mould upper surface can also continue to carry on spacingly to the die casting, prevents that the die casting from being close to and has the gap between the side of branch mould line position and the core side of mould.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a cross-sectional view A-A of FIG. 1;

fig. 3 is a schematic structural diagram of a die casting formed by die casting according to the present invention.

Detailed Description

The present invention will be further described with reference to the following examples and accompanying drawings.

As shown in fig. 1 and 3, a novel die-casting die structure mainly comprises a fixed die 1 and a movable die 2, wherein the fixed die 1 and the movable die 2 are just opposite to each other, and the novel die-casting die structure is characterized in that: a core 3 is arranged on the inner side surface of the movable die 2, a cavity is arranged on the inner side surface of the fixed die 1, the core 3 is matched with the cavity, the core 3 extends into the cavity, and a die-casting area is formed between the core 3 and the cavity;

the upper surface of the movable mold 2 is provided with a demolding limiting groove, the demolding limiting groove is close to the mold core 3, and the demolding limiting groove is communicated with the die-casting area

Wherein:

The radius of the R angle is 0.5 mm.

The die-casting die is characterized in that the core 3 is in a cube shape, two opposite side faces of the core 3 are attached to the cavity, a die-casting area with a U-shaped section is formed between the core 3 and the cavity, and the demolding limiting groove is communicated with the corresponding die-casting area.

A plurality of shaping grooves 4 are formed in the side wall of the mold core 3, all the shaping grooves 4 are located in the die-casting area, all the shaping grooves 4 are uniformly distributed in the corresponding die-casting area, and all the shaping grooves 4 are communicated with the inner side surface of the mold core 3;

the die-casting die is characterized in that a plurality of shaping lugs 5 are arranged at included angles between the inner wall of the cavity and the bottom surface of the cavity, the shaping lugs 5 correspond to the shaping grooves 4 one to one, reinforcing areas are formed between the shaping lugs 5 and the corresponding shaping grooves 4, and the reinforcing areas are located in the die-casting areas.

The shaping groove 4 is in a semi-conical shape, and the conical bottom of the shaping groove 4 is communicated with the upper surface of the mold core 3.

Finally, it should be noted that the above description is only a preferred embodiment of the present invention, and those skilled in the art can make various similar representations without departing from the spirit and the scope of the present invention.

Claims

1. The utility model provides a novel die casting die structure, includes cover half (1) and movable mould (2), cover half (1) with movable mould (2) are just to setting up its characterized in that: a mold core (3) is arranged on the inner side surface of the movable mold (2), a mold cavity is arranged on the inner side surface of the fixed mold (1), the mold core (3) is matched with the mold cavity, the mold core (3) extends into the mold cavity, and a die-casting area is formed between the mold core (3) and the mold cavity;

the upper surface of movable mould (2) is equipped with the drawing of patterns spacing groove, the drawing of patterns spacing groove is close to core (3), the drawing of patterns spacing groove with the regional switch-on of die-casting.

2. The novel die casting mold structure of claim 1, wherein: the arc-shaped transition of the groove bottom of the limiting groove forms an R angle.

3. The novel die casting mold structure of claim 2, wherein: the radius of the R angle is 0.5 mm.

4. A novel die casting mold structure as claimed in claim 3, characterized in that: the die-casting die is characterized in that the core (3) is in a cube shape, two opposite side faces of the core (3) are attached to the cavity, the die-casting area with a U-shaped section is formed between the core (3) and the cavity, and the demolding limiting groove is communicated with the corresponding die-casting area.

5. The novel die casting mold structure of claim 4, wherein: a plurality of shaping grooves (4) are formed in the side wall of the mold core (3), all the shaping grooves (4) are located in the die-casting area, all the shaping grooves (4) are uniformly distributed in the corresponding die-casting area, and all the shaping grooves (4) are communicated with the inner side face of the mold core (3);

the die-casting die is characterized in that a plurality of shaping lugs (5) are arranged at included angles between the inner wall of the cavity and the bottom surface of the cavity, the shaping lugs (5) are in one-to-one correspondence with the shaping grooves (4), reinforcing areas are formed between the shaping lugs (5) and the corresponding shaping grooves (4), and the reinforcing areas are located in the die-casting areas.

6. The novel die casting mold structure of claim 5, wherein: the shaping groove (4) is in a semi-conical shape, and the conical bottom of the shaping groove (4) is communicated with the upper surface of the mold core (3).