CN212577445U

CN212577445U - Mechanism for improving exhaust capacity of sand core

Info

Publication number: CN212577445U
Application number: CN202021179226.XU
Authority: CN
Inventors: 陈满义; 李祥; 王伟
Original assignee: Jiangsu Keluobo Technology Co ltd
Current assignee: Jiangsu Keluobo Technology Co ltd
Priority date: 2020-06-23
Filing date: 2020-06-23
Publication date: 2021-02-23
Anticipated expiration: 2030-06-23

Abstract

The utility model discloses an improve psammitolite exhaust capacity's mechanism, its characterized in that: comprises an exhaust pipe, an exhaust rope, foamed plastic, a sand core and an air exhaust nozzle; an exhaust pipe is arranged at the position needing to exhaust in the sand core; an exhaust rope is wound outside the exhaust pipe; a plurality of foamed plastics are arranged on the outer ring of the exhaust rope; the air exhaust nozzle is arranged at one end of the air exhaust pipe extending out of the sand core; furthermore, the pipe wall of the exhaust pipe is uniformly provided with fine exhaust holes. Furthermore, strip-shaped foam plastics communicated with the exhaust rope are arranged on the thick wall of the sand core. Furthermore, the air suction nozzle provides a smaller negative pressure for the exhaust pipe through air suction. The foamed plastic is placed at the position with a thicker wall of the sand core, so that the exhaust effect at the position with the thicker wall is improved; the exhaust nozzle is used for exhausting air to the exhaust pipe to generate negative pressure in the pipe, so that the exhaust and exhaustion of the gas are facilitated.

Description

Mechanism for improving exhaust capacity of sand core

Technical Field

The utility model relates to an exhaust mechanism, concretely relates to improve psammitolite exhaust capacity's mechanism.

Background

With the rapid development of the automobile industry, the variety of the used castings is more and more, and particularly, the development variety and the number of complex castings such as cylinder bodies and cylinder covers are rapidly increased. Because the sand core structure of the complex casting such as the cylinder body and the cylinder cover is complex, the sand core is large in cladding area by molten iron or molten aluminum, and the contact area of the sand core and the outside is small or is not communicated, a large amount of gas generated by heating the sand core can not be thoroughly discharged only by the core head and the sand mold, but the gas which can not be discharged enters the molten iron or the molten aluminum, the casting gas hole defect can be formed, the casting is scrapped, and the completion of the sand core exhaust is of great importance to the trial production success of the complex casting.

SUMMERY OF THE UTILITY MODEL

To the above-mentioned not enough that prior art exists, the to-be-solved technical problem of the utility model is to provide the mechanism that improves psammitolite exhaust capacity.

In order to solve the technical problem, the utility model discloses a following technical scheme: the utility model provides an improve mechanism of psammitolite exhaust capacity which characterized in that: comprises an exhaust pipe, an exhaust rope, foamed plastic, a sand core and an air exhaust nozzle;

an exhaust pipe is arranged at the position needing to exhaust in the sand core;

an exhaust rope is wound outside the exhaust pipe;

a plurality of foamed plastics are arranged on the outer ring of the exhaust rope;

the air exhaust nozzle is arranged at one end of the air exhaust pipe extending out of the sand core;

furthermore, the pipe wall of the exhaust pipe is uniformly provided with fine exhaust holes.

Furthermore, strip-shaped foam plastics communicated with the exhaust rope are arranged on the thick wall of the sand core.

Furthermore, the air suction nozzle provides a smaller negative pressure for the exhaust pipe through air suction.

The utility model has the advantages that:

1. the foamed plastic is placed at the position with a thicker wall of the sand core, so that the exhaust effect at the position with the thicker wall is improved;

2. the exhaust nozzle is used for exhausting air to the exhaust pipe to generate negative pressure in the pipe, so that the exhaust and exhaustion of the gas are facilitated.

Drawings

Fig. 1 is the mechanism schematic diagram of the utility model for improving the exhaust capacity of the sand core.

In the figure: 1 exhaust pipe, 2 exhaust rope, 3 foamed plastic, 4 sand core, 5 air extraction mouth.

Detailed Description

The following detailed description of the present invention will be made in conjunction with the accompanying drawings and specific embodiments.

As shown in fig. 1, a mechanism for improving the exhaust capacity of a sand core is characterized in that: comprises an exhaust pipe 1, an exhaust rope 2, foam plastic 3, a sand core 4 and an air suction nozzle 5;

an exhaust pipe 1 is arranged at a position needing to exhaust in the sand core 4;

an exhaust rope 2 is wound outside the exhaust pipe 1;

a plurality of foamed plastics 3 are arranged on the outer ring of the exhaust rope 2;

the air suction nozzle 5 is arranged at one end of the exhaust pipe 1 extending out of the sand core 4;

in practical application, the pipe wall of the exhaust pipe 1 is uniformly provided with fine exhaust holes.

In practical application, the thick wall of the sand core 4 is provided with strip-shaped foam plastic 3 communicated with the exhaust rope 2.

In practical application, the air suction nozzle 5 provides a small negative pressure to the inside of the exhaust pipe 1 through air suction.

In summary, in the utility model, the foamed plastic is placed at the position of the sand core with a thicker wall, so that the exhaust effect at the position of the wall thickness is improved; the exhaust nozzle is used for exhausting air to the exhaust pipe to generate negative pressure in the pipe, so that the exhaust and exhaustion of the gas are facilitated.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It should be understood by those skilled in the art that the foregoing embodiments are merely illustrative of the technical concepts and features of the present invention, and the purpose of the present invention is to provide a person skilled in the art with the ability to understand the contents of the present invention and implement the same, and not to limit the scope of the present invention.

Claims

1. The utility model provides an improve mechanism of psammitolite exhaust capacity which characterized in that: comprises an exhaust pipe (1), an exhaust rope (2), foam plastic (3), a sand core (4) and an air suction nozzle (5);

an exhaust pipe (1) is arranged at a position needing to exhaust in the sand core (4);

an exhaust rope (2) is wound outside the exhaust pipe (1);

a plurality of foamed plastics (3) are arranged on the outer ring of the exhaust rope (2);

and the air suction nozzle (5) is arranged at one end of the exhaust pipe (1) extending out of the sand core (4).

2. The mechanism for improving the air exhaust capability of the sand core as claimed in claim 1, wherein: and fine exhaust holes are uniformly formed in the pipe wall of the exhaust pipe (1).

3. The mechanism for improving the air exhaust capability of the sand core as claimed in claim 1, wherein: and strip-shaped foam plastics (3) communicated with the exhaust rope (2) are arranged on the thick wall of the sand core (4).

4. The mechanism for improving the air exhaust capability of the sand core as claimed in claim 1, wherein: the air suction nozzle (5) provides a small negative pressure for the interior of the exhaust pipe (1) through air suction.