CN218555494U

CN218555494U - Sand core for circular iron casting pouring system

Info

Publication number: CN218555494U
Application number: CN202222584547.3U
Authority: CN
Inventors: 牟乃健; 曹修宇; 于汐; 韩佳伟
Original assignee: Cssc Marine Power Components Co ltd
Current assignee: Cssc Marine Power Components Co ltd
Priority date: 2022-09-28
Filing date: 2022-09-28
Publication date: 2023-03-03
Anticipated expiration: 2032-09-28

Abstract

The utility model relates to a casting trade ring shape is the gating system psammitolite technical field for ironcasting, and discloses a circular ironcasting is psammitolite for gating system, including annular foundry goods external mold and psammitolite, including sprue, buffering runner nest and horizontal runner in the psammitolite. Through the design, concentrate on the sand core with the cross gate, adopt a circular runner, prefabricate in the psammitolite, only through the fixed ingate of external mold core head, the founder only keeps the ingate, and the molding is quick simple, and the molten iron pours into from the middle in addition, and the molten iron rises more evenly, has avoided the terminal cold molten iron of cross gate to easily cause the cold shut of foundry goods and the slag inclusion defect, leads to the condemned problem of foundry goods, and easy and simple to handle has alleviateed the package ingate of founder and has operated the work load.

Description

Sand core for circular iron casting pouring system

Technical Field

The utility model relates to a casting trade ring shape is psammitolite technical field for the ironcasting of casting system specifically is a circular ironcasting is psammitolite for the gating system.

Background

For the modeling production of 5-50 tons of circular large-scale iron castings, due to factors such as design structures and the like, the center is generally provided with an axle hole with the diameter of 800mm-3m, a conventional pouring system is of a bottom pouring type, a ceramic pipe is wrapped from the outer side of the casting to be used as the pouring system, a molder needs to fix the ceramic pipe by using an adhesive tape and a sand block, the operation is complex and tedious, meanwhile, the pouring system is heavy in weight, the yield of the casting is low, and cold molten iron at the tail end of a transverse pouring gate easily causes cold shut and slag inclusion defects of the casting, so that the casting is scrapped. Accordingly, one skilled in the art has provided a sand core for a round iron casting gating system to solve the above-mentioned problems of the background art.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Not enough to prior art, the utility model provides a circular iron casting is psammitolite for the gating system to solve the problem that proposes in the above-mentioned background art.

(II) technical scheme

In order to achieve the above object, the utility model provides a following technical scheme: a sand core for a circular iron casting pouring system comprises an annular casting outer die and a sand core, wherein a sprue, a buffering sprue pit and a cross gate are arranged in the sand core.

Preferably, an axial hole is formed in the annular casting outer die, the sand core is arranged in the annular casting outer die through the axial hole, and the sand core has a certain design universal type for the annular casting outer die with the similar shape.

Preferably, the horizontal pouring channel is annular, an inner pouring channel is connected in the horizontal pouring channel, and casting defects caused by molten iron turbulence, injection and the like can be reduced by adjusting the size of the inner pouring channel.

Preferably, the ingate is made of phi 40 ceramic tubes, the number of the ingate is 14, and the workload of the molding worker for wrapping the ceramic tubes is reduced.

(III) advantageous effects

Compared with the prior art, the utility model provides a circular iron casting is psammitolite for gating system possesses following beneficial effect:

through the design, concentrate on the sand core with the cross gate, adopt a circular runner, prefabricate in the psammitolite, only through the fixed ingate of external mold core head, the founder only keeps the ingate, and the molding is quick simple, and the molten iron pours into from the middle in addition, and the molten iron rises more evenly, has avoided the terminal cold molten iron of cross gate to easily cause the cold shut of foundry goods and the slag inclusion defect, leads to the condemned problem of foundry goods, and easy and simple to handle has alleviateed the package ingate of founder and has operated the work load.

Drawings

Fig. 1 is a schematic perspective view of a sand core for a round iron casting gating system according to an embodiment of the present application.

Fig. 2 is a schematic view of the structure of a ingate of a sand core for a circular iron casting gating system according to an embodiment of the present application.

Fig. 3 is a schematic structural diagram of a sand core in a sand core for a circular iron casting gating system according to an embodiment of the present application.

Fig. 4 is a sectional view of a sand core for a circular iron casting system according to an embodiment of the present application.

Fig. 5 is a schematic diagram of a system for casting a sand core in a circular iron casting system according to an embodiment of the present application.

In the figure: 1. an annular casting external mold; 2. a sand core; 201. a sprue; 202. buffering a sprue pit; 203. a cross gate; 3. an inner runner.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The utility model provides a technical scheme, a sand core for circular ironcasting gating system, please refer to fig. 1, fig. 2, fig. 3, including annular casting external mold 1 and sand core 2, please refer to fig. 4, fig. 5, including sprue 201, buffering runner nest 202 and cross gate 203 in the sand core 2;

referring to fig. 4 and 5, an axial hole is formed in the annular casting outer mold 1, the sand core 2 is arranged in the annular casting outer mold 1 through the axial hole, the sand core 2 has a certain design general type for the annular casting outer mold 1 with a similar shape, the horizontal runner 203 is annular, the horizontal runner 203 is internally connected with an inner runner 3, casting defects caused by molten iron turbulence, jetting and the like can be reduced by adjusting the size of the inner runner 3, and the like, the inner runner 3 is made of phi 40 ceramic tubes, the number of the inner runners is 14, and workload of a molder for wrapping the ceramic tubes is reduced.

The working principle of the device is as follows: manufacturing a sand core 2 according to the size of an inner circular hole of the annular casting external mold 1, and arranging the sand core 2 in the annular casting external mold 1;

aiming at the production of the annular casting external mold 1, after resin sand molding, a sand core 2 falls into the annular casting external mold 1 in the box matching process and serves as a pouring system;

the sand core 2 has a certain design universal type aiming at the annular casting external mold 1 with a similar shape, can reduce the casting defects caused by molten iron turbulence, injection and the like by adjusting the size of the ingate 3, and the like, is simple and convenient to operate, and reduces the workload of the ceramic tube wrapping operation of a molder;

further, please refer to fig. 4 and 5 for pouring molten iron as a casting pouring system;

further, the operation method comprises the following steps:

1. designing a sand core drawing according to the external mold structure of the annular casting, and determining the size of the sand core;

2. manufacturing a wooden core box mold according to the size of the sand core;

3. resin sand is used for molding a sand core and an external mold of the casting system;

4. manufacturing 14 ingates by using phi 40 ceramic tubes according to the ingate positioning;

5. connecting and positioning a sand core of the pouring system and an ingate;

6. and introducing molten iron into the sand core pouring system through a phi 100 sprue.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A sand core for a circular iron casting pouring system is characterized in that: the sand core casting device comprises an annular casting external mold (1) and a sand core (2), wherein a sprue (201), a buffering sprue pit (202) and a cross gate (203) are arranged in the sand core (2).

2. The sand core for a round iron casting gating system according to claim 1, wherein: and a shaft hole is formed in the annular casting external mold (1), and the sand core (2) is arranged in the annular casting external mold (1) through the shaft hole.

3. The sand core for a round iron casting gating system according to claim 1, wherein: the horizontal pouring channel (203) is annular, and an inner pouring channel (3) is connected in the horizontal pouring channel (203).

4. The sand core for a circular iron casting system according to claim 3, wherein: the inner pouring channel (3) is made of a ceramic pipe.