CN2227534Y - Non-mechanical extaust casting apparatus - Google Patents

Abstract

The utility model relates to a non-mechanical exhaust casting apparatus. A plurality of metal exhaust pipes are arranged in a resin sand box. The exhaust pipes are arranged inside the sand box and communicated with exhaust holes outside the sand box. Round exhaust holes are arranged on the exhaust pipes, and the produced gas is exhausted out of the resin sand box through the exhaust holes to ignite to realize non-mechanical exhaust. The utility model has the advantages of simple manufacturing process, little pollution and low labour intensity to enhance the production efficiency and finished cast products and to lower the cost.

Description

On-mechanical exhaust casting device

The utility model is the technical field of casting industry.

Existing casting and molding mostly is moulding of clay-bonded sand full pattern and plate moulding, during moulding mixed clay-bonded sand is poured in the sandbox, then by artificial and mechanical ramming, dried die cast must be put into drying kiln dries, last mould assembling cast, and adopting its shortcoming of this moulding is that casting qualified rate is low, the sand removal difficulty is big, the labour intensity height, dust pollution is serious, and production efficiency is low.The also employing that has in moulding at present is a phenolic sand molding by clay-bonded sand moulding political affairs, but a large amount of gases that when cast, produced in the phenolic sand molding sandbox, can only adopt vavuum pump to find time and to discharge the gas in the sandbox, technology is cumbersome, time-consuming, cost is high, makes the large scale application of phenolic sand molding difficulty or ease.

The purpose of this utility model provides a kind of on-mechanical exhaust casting device, reach the saving of labor, laborsaving, production efficiency is high, reduce the purpose of environmental pollution.

The utility model is realized by following measure, in the sandbox of phenolic sand molding, be provided with many metal exhaust tubes (3), blast pipe (3) is installed in the inside of sandbox, utilize positioning sleeve (2) fixing, and communicate with sandbox external venting (7), the quantity that blast pipe is installed, size and structure according to foundry goods are determined, blast pipe (3) is provided with air admission hole (5) and exhaust circular hole (6), when molten iron is poured into die cavity, locate in time to light the gas of discharge at steam vent (7), because molten iron temperature burns after running into high temperature than high resin, burning produces a large amount of fuel gas and collects in blast pipe (3),, reduce environmental pollution and form on-mechanical exhaust casting, reach fast the purpose of exhaust smoothly from face after steam vent (7) discharges to ignite burns again.

Advantage of the present utility model is that technology is simple, reduces environmental pollution, reduces labour intensity, and production efficiency and casting yield all have big raising, and cost is low, economic benefit is high.

Description of drawings is as follows:

Fig. 1 is an on-mechanical exhaust casting device schematic diagram.

Fig. 2 is the blast pipe enlarged drawing of Fig. 1.

1, sandbox, 2, positioning sleeve, 3, blast pipe, 4, advance sand hole, 5, air admission hole, 6, exhaust circular hole, 7, steam vent,

Claims (1)

1. On-mechanical exhaust casting device, have sandbox (1) and advance sand hole (4) and air admission hole (5), it is characterized in that in the resin sandbox, be provided with many metal exhaust tubes (3), blast pipe (3) is installed in the inside of sandbox, utilizes positioning sleeve (2) fixing, and communicates with sandbox external venting (7), blast pipe (3) is provided with exhaust circular hole (5), a large amount of gases is excreted through steam vent (7) ignite.