CN213195526U

CN213195526U - Filtering mechanism of lost foam casting box

Info

Publication number: CN213195526U
Application number: CN202022154921.7U
Authority: CN
Inventors: 朱洪峰; 高玺声; 张永振; 朱友
Original assignee: Dalian Changsheng Haihua Conveying Equipment Manufacture Co ltd
Current assignee: Dalian Changsheng Haihua Conveying Equipment Manufacture Co ltd
Priority date: 2020-09-27
Filing date: 2020-09-27
Publication date: 2021-05-14
Anticipated expiration: 2030-09-27

Abstract

The utility model belongs to a filtering mechanism of a lost foam casting box, which comprises a casting sand box, wherein casting sand is arranged in a cavity of the casting sand box, and the filtering mechanism is characterized in that the wall of a horn mouth and the wall of a pear-shaped pouring gate are integrated, two sides of the upper end of the pear-shaped pouring gate wall are connected with a circular pouring cylinder by connecting blocks, and a half pear-shaped pouring cavity is arranged in the pear-shaped pouring gate; a filter sand ball is placed in the bell mouth. The utility model discloses a filter effect is good, and convenient and fast is changed in the clearance, ensures the processingquality of work piece.

Description

Filtering mechanism of lost foam casting box

Technical Field

The utility model belongs to a filtering mechanism, in particular to filtering mechanism of lost foam casting case.

Background

The lost foam casting technology is widely applied, and has the advantages of simple process and low cost compared with the casting technology adopting a metal mold. But it has a disadvantage that: when the molten metal is poured, the molten metal is filtered, impurities are prevented from being injected into a workpiece, the quality of the workpiece is influenced, a metal filter screen is arranged at a pouring gate in the prior art, the defects that the filter screen is easy to block, the inflow of the molten metal is influenced by more impurities, and the filter screen must be cleaned frequently and replaced.

Disclosure of Invention

The invention aims to overcome the technical defects and provides a filtering mechanism of a lost foam casting box, wherein a pear-shaped pouring port is fixed on a liquid injection nozzle, a sand filtering ball is arranged at the inlet of a pouring pipe, the filtering effect is good, and filtered impurities are easy to remove.

The utility model provides a technical scheme that technical problem took is: a filtering mechanism of a lost foam casting box comprises a casting sand box, casting sand is filled in a cavity of the casting sand box, a motor seat made of polystyrene is placed in the casting sand, a right-angle pouring pipe with a liquid flow hole arranged in the middle is arranged in the left side and the upper plane of the casting sand, the upper end of the pouring pipe is made into a horn mouth shape, and the lower end of the pouring pipe is contacted with the motor seat; the device is characterized in that the wall of the horn mouth and the wall of the pear-shaped pouring gate are integrated, two sides of the upper end of the pear-shaped pouring gate wall are connected with a circular pouring cylinder through connecting blocks, and a half pear-shaped pouring cavity is arranged in the pear-shaped pouring gate; a filter sand ball is placed in the bell mouth.

The utility model has the advantages that: the utility model discloses a filter effect is good, and convenient and fast is changed in the clearance, ensures the processingquality of work piece.

Drawings

The following description is made in detail by way of example with reference to the accompanying drawings.

FIG. 1 is a front view of a filter mechanism of a lost foam casting box;

fig. 2 is a top view of fig. 1.

In the figure: 1-pear-shaped pouring gate; 1-1-casting cavity; 1-2-connecting block; 2-a pouring tube; 2-1-bell mouth; 3-liquid flow holes; 4-a motor base; 5-filtering sand balls; 6-casting sand; 7-casting a sand box; 8-casting cylinder; 9-a handle; 10-impurities.

Detailed Description

In the embodiment, referring to the attached drawings, the filtering mechanism of the lost foam casting box comprises a casting sand box 7, casting sand 6 is arranged in a cavity of the casting sand box 7, a motor seat 4 made of polystyrene is arranged in the casting sand 6, a right-angle pouring pipe 2 with a liquid flow hole 3 arranged in the middle of the right angle is arranged in the left side middle and the upper plane of the casting sand 6, the upper end of the pouring pipe 2 is made into a bell mouth 2-1 shape, and the lower end of the pouring pipe is in contact with the motor seat 4; the device is characterized in that the wall of a horn mouth 2-1 and the wall of a pear-shaped pouring gate 1 are integrated, two sides of the upper end of the wall of the pear-shaped pouring gate 1 are connected with a circular pouring cylinder 8 through connecting blocks 1-2, and a half pear-shaped pouring cavity 1-1 is arranged in the pear-shaped pouring gate 1; a filtering sand ball 5 is arranged in the bell mouth 2-1.

Handles 9 are fixed on two sides of the upper end of the casting sand, so that the casting sand is convenient to carry. The filtering sand ball 5 is made of high temperature resistant metal net as ball shell and sand filled in it, so the liquid permeability is good. The filtered impurities 10 can easily and automatically flow into the lower part from the surface of the filtering sand ball 5 along the inclined surface below the pear-shaped pouring cavity 1-1 to be piled up as the impurities 10, and the piled impurities can be manually poured and cleaned by a tool.

The operation method of the utility model is as follows: according to the size of a workpiece, firstly, casting sand is filled into a box, after the height reaches the H value, the workpiece (the motor base 4) is flatly placed on the casting sand 6, the height of the casting sand H2 is continuously filled, the pouring pipe 2 is placed, and the casting sand is continuously filled until the upper plane and the upper plane of the pouring cylinder 8. Then, the metal solution can be poured into the pouring cavity 1-1, enters the motor seat 4 from the liquid flowing hole 3 to melt polystyrene foam, and is a product of the motor seat 4 after being cooled.

Claims

1. A filtering mechanism of a lost foam casting box comprises a casting sand box (7), casting sand (6) is arranged in a cavity of the casting sand box (7), a motor base (4) made of polystyrene is placed in the casting sand (6), a right-angle pouring pipe (2) with a liquid flowing hole (3) in the middle is arranged in the left side of the casting sand (6) and on the upper plane of the casting sand, the upper end of the pouring pipe (2) is made into a bell mouth (2-1) shape, and the lower end of the pouring pipe is in contact with the motor base (4); the device is characterized in that the wall of a horn mouth (2-1) and the wall of a pear-shaped pouring gate (1) are integrated, two sides of the upper end of the wall of the pear-shaped pouring gate (1) are connected with a circular pouring cylinder (8) through connecting blocks (1-2), and a half pear-shaped pouring cavity (1-1) is arranged in the pear-shaped pouring gate (1); a filtering sand ball (5) is arranged in the bell mouth (2-1).