CN201505713U

CN201505713U - Pressure-casting die

Info

Publication number: CN201505713U
Application number: CN2009200484911U
Authority: CN
Inventors: 程斌
Original assignee: Suzhou Yongchuang Metal Science and Technology Co Ltd
Current assignee: Suzhou Yongchuang Metal Science and Technology Co Ltd
Priority date: 2009-10-22
Filing date: 2009-10-22
Publication date: 2010-06-16
Anticipated expiration: 2019-10-22

Abstract

The utility model relates to a pressure-casting die, comprising an upper die unit, a lower die unit and a slide block unit; the upper die unit is provided with an upper die cavity unit; the lower die unit is provided with a lower die cavity unit; the upper die cavity unit is matched with the lower die cavity unit; the slide block unit is installed in a space formed due to the combination of the upper die cavity unit and the lower die cavity unit; the bottom of the slide block is provided with a feeding hole; the pressure-casting die further provides an oil pressure extraction slide block device used for extracting the slide block unit; three side faces of the slide block unit have angles with single side II; the pressure-casting die comprises a subsurface feeding structure and the oil pressure extraction slide block device at the bottom of the slide block unit of the pressure-casting die, the feeding hole is installed by using the slide block unit so as to facilitate casting filling and forming so that the filling is in fluid state and much filling is carried out by displacing the gas between the gaps of the cavity through material, thereby solving defects about forming and casting.

Description

A kind of die casting

Technical field

The utility model relates to a kind of die casting, refers in particular to a kind of die casting of slider bottom charging, belongs to the die casting technical field.

Background technology

Compression casting belongs to hot forming metal manufacture field, the structural design of die casting is bigger to die casting production influence, particularly the correct setting of running channel and cast gate directly influences the shaping of product and the quality of product with design, the design of correct mould structure and die casting running channel not only improves the qualification rate of foundry goods, reduce foundry returns, can also prolong the life-span of mould.Present die cast product is more to large-scale, complicated, accurate development, this just proposes higher requirement to the structural design of die casting and runner and cast gate design, sometimes often be because the design of mould structure and die casting running channel is provided with incorrect, cause foundry goods to be shaped and shaping fraction defective extra-high-speed, in the time can not passing through other die casting parametric compensation, have to be with the die casting condition of the limit, extrusion process and other numerous processing technology of increase remove bad influence, it still is undesirable having increased many man power and material's effects often, the mould premature failure, and the die casting cost increases.

The utility model content

The utility model purpose is that the die casting that has proposed a kind of slider bottom charging is provided in order to overcome the deficiencies in the prior art.

For achieving the above object, the technical solution adopted in the utility model is: a kind of die casting comprises mold unit, bed die unit, slide unit; Described mold unit is provided with unit, a patrix shape chamber; Described bed die unit is provided with unit, a counterdie shape chamber; Unit, described patrix shape chamber matches with unit, counterdie shape chamber; Described slide unit is arranged on unit, described patrix shape chamber and matches with unit, counterdie shape chamber in the space that forms; The bottom of described slide unit is provided with charging aperture.

Preferably, described die casting comprises that also oil pressure takes out slide block device, is used for extracting out slide unit.

Preferably, there are the angles of monolateral 2 degree described slide unit three sides.

Die casting described in the utility model, the structure and the oil hydraulic cylinder that comprise the submarine charging of die casting slide unit bottom are taken out slide block device, thus, die-cast product is offered at die casting cast gate place just more more options, make the mould design help the shaping of die-cast product more, improve the interior external quality of product.Particularly to a little complexity and special die casting, surfaces externally and internally is irregular, intermediate shape is very complicated, distribution path is wide or the dead angle is numerous, make the gate land liquid material with simple several surfaces and be difficult to each corner in the smooth filling die cavity, the charging aperture of hiding by setting in the mould, utilize slide block that charging aperture is provided with and be beneficial to foundry goods filling and shaping everywhere, make filling with the entrance and exit type fluidised form, in a large number displace the space of cavity with the gas in the space is filled by raw material, the many defectives in shape and the die casting are filled in solution.

Description of drawings

Below in conjunction with accompanying drawing technical solutions of the utility model are described further:

Fig. 1 is the assembled sectional view of feeding structure of the die casting of prior art;

Fig. 2 is the assembled sectional view of the bottom feed structure of die casting of the present utility model;

Fig. 3 is under the die casting closure state of the present utility model, the closed cutaway view that forms the passage of hiding of slide unit;

Fig. 4 is under the die casting folding condition of the present utility model, after the charging aperture of hiding after slide unit skids off exposes, and the cutaway view that product stripping takes out.

The specific embodiment

The die casting of prior art as shown in Figure 1, include one group of mold unit 1, one group of bed die unit 2, one group of upper cavity unit 3 that forms cavity, one group of lower mode cavity unit 4 that forms cavity, other member of above-mentioned main member and omission explanation is formed structure and interblock space kenel, the space 6 of shaping die casting, feeding-passage 7 and charging aperture 8.During casting forming, liquid material sealing foundry goods D portion 9 charging oral areas, formation can't be discharged the cavity space D portion 9 of gas, and tiny muscle position D portion 9 is shaped and can only fills with the pressure current form, and the effect of shaping is bad.

Die casting of the present utility model as shown in Figure 2, include one group of mold unit 10, one group of bed die unit 20, one group of upper cavity unit 30 that forms cavity, one group of lower mode cavity unit 40 that forms cavity, one group of slide unit 50, take out slide block device (omitting explanation) with oil pressure, other member of above-mentioned main member and omission explanation is formed structure and interblock space kenel, shaping die casting space 60, feeding-passage 70 and the charging aperture 80 that is arranged on the bottom of described slide unit, during casting forming, the throat-fed that liquid material is forming, the liquid material fluidised form transfers to along tiny muscle position D portion 90 carries out the entrance and exit type filling, tiny muscle position D portion 90 forms open filling can the road, and tiny muscle position D portion 90 gases are easily discharged, shaping respond well.

As Fig. 3, the cutaway view under the die casting closure/folding condition of the present utility model shown in Figure 4; Implement the structure of the utility model die casting charging, the duty of feeding structure is described, the angle of 2 degree is all arranged at the slide unit bottom, so that the demoulding, particularly anti-limited slip block be heated with the shape chamber between produce card mutually, exhaustion plate unit 100 gas in the D portion 90 that is used for draining among the figure; Oil hydraulic cylinder assembly 110 promptly is that oil pressure is taken out slide block device, is used for extracting out slide unit 50.

Below only be concrete exemplary applications of the present utility model, protection domain of the present utility model is not constituted any limitation.All employing equivalents or equivalence are replaced and the technical scheme of formation, or any to move mode dull and stereotyped described in the utility model, all drop within the utility model rights protection scope.

Claims

1. a die casting comprises mold unit, bed die unit, slide unit; Described mold unit is provided with unit, a patrix shape chamber; Described bed die unit is provided with unit, a counterdie shape chamber; Unit, described patrix shape chamber matches with unit, counterdie shape chamber; Described slide unit is arranged on unit, described patrix shape chamber and matches with unit, counterdie shape chamber in the space that forms; It is characterized in that: the bottom of described slide unit is provided with charging aperture.

2. die casting according to claim 1 is characterized in that: described die casting, comprise that also oil pressure takes out slide block device, and be used for extracting out slide unit.

3. die casting according to claim 1 is characterized in that: there is the angle of monolateral 2 degree described slide unit three sides.