CN203109209U

CN203109209U - Die-casting die

Info

Publication number: CN203109209U
Application number: CN 201320117709
Authority: CN
Inventors: 李光浩; 徐伟强; 马广兴; 刘桂平
Original assignee: Suzhou Guangxing Mold Co Ltd
Current assignee: Suzhou Guangxing Mold Co Ltd
Priority date: 2013-03-15
Filing date: 2013-03-15
Publication date: 2013-08-07
Anticipated expiration: 2023-03-15

Abstract

The utility model discloses a die-casting die which comprises a fixed die core, a movable die core and a pouring system. A vacuum-pumping system is arranged at one side end of the movable die core. A vacuum-discharging runner is formed in the parting face of the movable die core. The vacuum-discharging runner is connected with the vacuum-pumping system. The vacuum-pumping system comprises a buffering device, a filtering device and an external joint, wherein the buffering device, the filtering device and the external joint are arranged in sequence. According to the die-casting die, air holes in products formed in a die-casting mode are reduced, and a pass percentage of the products is improved.

Description

A kind of die casting

Technical field

The utility model relates to mould manufacturing industry, particularly a kind of die casting.

Background technology

Die casting comprises cover half benevolence, mavable module core and running gate system.When mould is cast, behind the fixed half and moving half matched moulds, the liquid gold is full of die cavity by running gate system, and speed was fast when liquid passed through running gate system, the pressure height, make a large amount of gas be involved in the die cavity, gas is subjected to high speed and high pressure in die cavity effect is sharply expanded, and forms the space of vacuum, hinders flowing of liquid, make that the product pore of moulding is more, the scrappage height.

The utility model content

For solving the problems of the technologies described above, the utility model provides a kind of die casting, to realize reducing the pore of die cast product, improves the purpose of product percent of pass.

For achieving the above object, the technical solution of the utility model is as follows:

A kind of die casting, comprise cover half benevolence, mavable module core and running gate system, it is characterized in that, the side of described mavable module core is provided with pumped vacuum systems, the die joint of described mavable module core is provided with the vacuum pumping runner, described vacuum pumping runner links to each other with described pumped vacuum systems, and described pumped vacuum systems comprises buffer unit, filter and the external lug that sets gradually.

Preferably, seal with sealing ring between described filter and the described external lug.

Preferably, the hollow of described buffer unit is provided with a jagged runner that vacuumizes, and a described end that vacuumizes runner links to each other with described vacuum pumping runner, and the other end links to each other with described filter.

Preferably, the described jagged angle that vacuumizes runner tooth angle both sides is at 30 °～60 °, and sawtooth has 8～12.

Pass through technique scheme, the die casting that the utility model provides, by increasing the vacuum pumping runner at dynamic model, add pumped vacuum systems, pumped vacuum systems and vacuum pumping runner and dynamic model are connected together, and when mould was poured into a mould, pumped vacuum systems was taken air in the die cavity away by the vacuum pumping runner on the dynamic model, realize reducing the pore of die cast product, improved the purpose of product percent of pass.

Description of drawings

In order to be illustrated more clearly in the technical scheme among the utility model embodiment, will do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below.

Fig. 1 is the disclosed dynamic model structural representation that pumped vacuum systems is installed of the utility model embodiment;

Fig. 2 is the schematic partial cross-sectional view that vacuumizes the sawtooth of runner.

The specific embodiment

Below in conjunction with the accompanying drawing among the utility model embodiment, the technical scheme among the utility model embodiment is clearly and completely described.

The utility model provides a kind of die casting, comprise cover half benevolence, mavable module core and running gate system, as shown in Figure 1, the side of mavable module core 2 is provided with pumped vacuum systems, the die joint of mavable module core 2 is provided with vacuum pumping runner 21, vacuum pumping runner 21 links to each other with pumped vacuum systems, and pumped vacuum systems comprises buffer unit 3, filter 4, the external lug 5 that sets gradually.

Seal with sealing ring 6 between filter 4 and the external lug 5.Buffer unit 3 hollows are provided with a jagged runner that vacuumizes, and an end that vacuumizes runner links to each other with vacuum pumping runner 21, and the other end links to each other with filter 4.As shown in Figure 2, the jagged angle that vacuumizes runner tooth angle 31-1 two continuous limits is at 35 °, and sawtooth has 11.

Mavable module core 2 and place the cover half benevolence matched moulds of mavable module core 2 tops after; high-temperature fluid pours in the die cavity behind the matched moulds rapidly by running gate system 1; at this moment; place the gas of die cavity to flow into the vacuum pumping runner 21 of mavable module core 2 at the liquid front end; then down flow to into buffer unit 3; jagged in the buffer unit 3 vacuumizes the air that runner can effectively be alleviated high-speed cruising; make the relatively slowly air inflow filter 4 of operation; can effectively protect outside vacuum machine like this; filtered air continues then to flow to external lug toward dirty.One end of external lug 5 connects outside vacuum machine, by the operation of vacuum machine is taken away the air that flows through from die cavity, has realized reducing the pore of die cast product, improves the purpose of product percent of pass.

Multiple modification to these embodiment will be apparent concerning those skilled in the art, and defined General Principle can realize under the situation that does not break away from spirit or scope of the present utility model in other embodiments herein.The utility model will can not be restricted to these embodiment shown in this article, but will meet the wideest scope consistent with principle disclosed herein and features of novelty.

Claims

1. die casting, comprise cover half benevolence, mavable module core and running gate system, it is characterized in that, the side of described mavable module core is provided with pumped vacuum systems, the die joint of described mavable module core is provided with the vacuum pumping runner, described vacuum pumping runner links to each other with described pumped vacuum systems, and described pumped vacuum systems comprises buffer unit, filter and the external lug that sets gradually.

2. a kind of die casting according to claim 1 is characterized in that, seals with sealing ring between described filter and the described external lug.

3. a kind of die casting according to claim 1 is characterized in that, the hollow of described buffer unit is provided with a jagged runner that vacuumizes, and a described end that vacuumizes runner links to each other with described vacuum pumping runner, and the other end links to each other with described filter.

4. a kind of die casting according to claim 3 is characterized in that, the described jagged angle that vacuumizes runner tooth angle both sides is at 30 °～60 °, and sawtooth has 8～12.