CN202062052U

CN202062052U - Sand shooting nozzle

Info

Publication number: CN202062052U
Application number: CN2011201469973U
Authority: CN
Inventors: 赵德强
Original assignee: ZHAOQING FENGCHI PRECISION METALWORK CO Ltd
Current assignee: ZHAOQING FENGCHI PRECISION METALWORK CO Ltd
Priority date: 2011-05-04
Filing date: 2011-05-04
Publication date: 2011-12-07
Anticipated expiration: 2021-05-04

Abstract

The utility model relates to the technical field of aluminum alloy casting molds, in particular to a sand shooting nozzle for manufacturing a sand mold, which comprises a sand shooting head and a sand outlet. An X-shaped baffle is arranged between the sand shooting head and the sand outlet. Arc channels are formed between the X-shaped baffle and the inner wall of the sand shooting head to avoid a straight through opening in the vertical direction of the sand shooting nozzle and the sand outlet. Furthermore, an annular groove is added on the lower portion of the sand shooting head. The sand falls on the annular groove through the four arc channels because of gravity of the sand, and when the sand gathers to a certain quantity, the sand stops flowing, thereby obtaining the effects that the sand does not flow and can not spill. Accordingly, when a sand shooting machine does not work, the molding sand does not leak.

Description

A kind of Sha Zui that penetrates

Technical field

The utility model relates to the aluminium alloy casting technical field of mold, specifically is meant a kind of a kind of Sha Zui of penetrating of sand mold mould manufacturing usefulness.

Background technology

The production of aluminium alloy castings be unable to do without mould and mold pin, and the outer shape that mould has guaranteed aluminium alloy castings is consistent with design.Mold pin has then guaranteed the position and the size of all size pin-and-hole in the aluminium alloy castings, has reduced the post-production workload.

Mould is divided into metal die and sand mold mould by material.

Metal die has many advantages on Technological Economy:

(1) foundry goods of its production, its mechanical property ratio sand-cast height, its etch resistant properties and hardness also significantly improve;

(2) precision of foundry goods and surface smoothness be than sand-cast height, and quality and dimensionally stable;

(3) the liquid metals consumption of foundry goods reduces, and generally can save 15～30%;

(4), generally can save Modeling Material 80～100% without sand or use sand less;

The weak point of metal die is:

(1) manufacturing cost height;

(2) metal is airtight, easily causes defectives such as blow hold, the similar scarce material in edge;

(3) casting technique is comparatively complicated, needs strict control.

(4) can't cast inner complicated foundry goods, as automobile engine cylinder head etc.

And the pluses and minuses of sand mold mould are just in time opposite with metal die.

Therefore, use metal die and sand mold mould to combine, can cast complicated aluminium alloy engine parts.Be that the engine component profile adopts metal die, the labyrinth of engine component inside uses the sand mold mould, and promptly smallclothes sand mold mould sticks in the big part metal die, forms unitary mould and is used for the Birmasil engine component.

The common employing of smallclothes sand mold mould is penetrated the sand machine and is penetrated the sand moulding, and when penetrating the work of sand machine, the molding sand that is added with curing agent that compressed air will be penetrated in the sand machine is injected in the flask, forms the sand mold mould.Still have a small amount of molding sand from penetrate the sand mouth, to spill when penetrating when the sand machine is shut down, influence produced on-site and cause waste.

Summary of the invention

In order to solve the sand mouth leakage sand problem of penetrating that prior art exists, the utility model proposes simple, practical a kind of Sha Zui of penetrating.

The technical scheme that the utility model uses is as follows:

A kind of Sha Zui that penetrates, it comprises sand-shooting head and sand export, is provided with the X-shaped baffle plate between described sand-shooting head and sand export, forms curved channel between X-shaped baffle plate and the sand-shooting head inwall; Molding sand passes through from curved channel.

In described sand-shooting head inwall bottom, be provided with annular groove.

The beneficial effects of the utility model are:

Between described sand-shooting head and sand export, be provided with the X-shaped baffle plate and form four curved channels, make sand-shooting head and sand export not have straightthrough port in vertical direction, and the sand-shooting head bottom has increased an annular groove, molding sand is fallen on the annular groove by four curved channels because of gravity, when accumulating to when a certain amount of, sand will stop to flow.Thereby reached molding sand and do not flowed the effect of not overflowing.Like this, when penetrating the sand machine and not working, molding sand does not spill.

Description of drawings

Fig. 1 penetrates sand mouth cross-sectional schematic for prior art.

Fig. 2 penetrates the sand mouth for prior art and leaks the sand schematic diagram.

Fig. 3 penetrates sand mouth cross-sectional schematic for the utility model.

Fig. 4 is Fig. 3 schematic top plan view.

1-sand-shooting head among the figure, 2-molding sand, 3-baffle plate, 4-sand export, 5-curved channel, 6-annular groove.

The specific embodiment

Fig. 1 penetrates sand mouth cross-sectional schematic for prior art, and Fig. 2 penetrates the sand mouth for prior art and leaks the sand schematic diagram.Because sand-shooting head and sand export have straightthrough port in vertical direction, therefore, still have molding sand to spill when penetrating the sand machine off-air time.

Fig. 3 penetrates sand mouth cross-sectional schematic for the utility model.Between sand-shooting head and sand export, be provided with the X-shaped baffle plate and form four curved channels, make sand-shooting head and sand export not have straightthrough port in vertical direction, and the sand-shooting head bottom has increased an annular groove, molding sand is fallen on the annular groove by four curved channels because of gravity, when accumulating to when a certain amount of, sand will stop to flow.Thereby reached sand and do not flowed the effect of not overflowing.Like this, when penetrating the sand machine and not working, molding sand does not spill.

Fig. 4 is Fig. 3 schematic top plan view.

Claims

1. penetrate Sha Zui for one kind, it comprises sand-shooting head and sand export, it is characterized in that: be provided with the X-shaped baffle plate between described sand-shooting head and sand export, form curved channel between X-shaped baffle plate and the sand-shooting head inwall.

2. a kind of Sha Zui that penetrates according to claim 1 is characterized in that: in described sand-shooting head inwall bottom, be provided with annular groove.