Casting mold supporting structure, casting machine, method for producing cast product, casting mold, and molten metal supplying structure

Patent metadata

Field	Value
Publication number	US-10220439-B2
Application number	US-201615004201-A
Country	US
Kind code	B2
Filing date	Jan 22, 2016
Priority date	Jan 23, 2015
Publication date	Mar 5, 2019
Grant date	Mar 5, 2019

Abstract

A casting mold supporting structure is provided herein which includes a support roller for supporting a part of a casting mold that is used in centrifugal casting. The casting mold has a supported surface (that is, a side surface of an end portion of the casting mold which end portion has a circular truncated cone shape) at which the casting mold is supported by the support roller. The supported surface is inclined with respect to a rotation axis of the casting mold.

First claim

The invention claimed is:

1. A molten metal supplying structure comprising:
a ladle; and
a chute that has a groove for receiving molten metal supplied from the ladle and guiding, in a horizontal direction, the molten metal thus received,
the ladle having (i) a ladle body for retaining the molten metal and (ii) a pouring gate via which the molten metal retained in the ladle body is supplied to an outside,
the ladle body having (i) a swinging shaft for swinging the pouring gate in a plane that is defined by a direction in which the molten metal is supplied from the ladle body to the outside and a vertical direction and (ii) a bottom surface portion (a) whose cross sectional shape taken in a direction parallel to the plane forms a first arc centered on the swinging shaft and (b) which extends along the swinging shaft, and
the pouring gate being provided in the bottom surface portion,
wherein a cross sectional shape of the chute taken in the direction in parallel with the plane forms a second arc centered on the swinging shaft, a distance between the swinging shaft and the second arc being greater than a distance between the swinging shaft and the first arc.

2. The molten metal supplying structure as set forth in claim 1 , wherein:
in a cross section in parallel with the plane, an angle between (i) the direction in which the molten metal is supplied from the ladle body to the outside and (ii) a direction in which the chute guides the molten metal is 90° or more and 180° or less.

3. The molten metal supplying structure as set forth in claim 1 , wherein:
a width of the bottom surface portion along the swinging shaft is smaller than a diameter of a circle having the first arc.

4. The molten metal supplying structure as set forth in claim 1 , wherein:
the pouring gate is configured by a nozzle having a substantially cylindrical shape; and
in the cross section in parallel with the plane, a shaft center of the nozzle is located on a line connecting the swinging shaft and a center of the nozzle.

5. A casting machine comprising a molten metal supplying structure recited in claim 1 .

6. A method for producing a cast product, said method comprising the step of: using a casting machine recited in claim 5 ;
supplying molten metal to a mold in the casting machine from the ladle via the chute, the mold having a cylindrical shape,
during the step of supplying molten metal, a part via which the molten metal is supplied to the mold being moved toward the chute while the mold is rotated around a cylindrical axis of the mold.

7. A molten metal supplying structure comprising:
a ladle;
a chute that has a groove for receiving molten metal supplied from the ladle and guiding, in a horizontal direction, the molten metal thus received; and
a motor directly attached to the ladle,
the ladle having (i) a ladle body for retaining the molten metal and (ii) a pouring gate via which the molten metal retained in the ladle body is supplied to an outside,
the ladle body having (i) a swinging shaft for swinging the pouring gate in a plane that is defined by a direction in which the molten metal is supplied from the ladle body to the outside and a vertical direction and (ii) a bottom surface portion (a) whose cross sectional shape taken in a direction parallel to the plane forms a first arc centered on the swinging shaft and (b) which extends along the swinging shaft, and
the pouring gate being provided in the bottom surface portion.

Assignees

• Kubota Kk

Inventors

• Akiyama Naohisa
• Kohara Masaru
• Tanaka Shinichiro

Classifications

• B22D13/10

  Accessories for centrifugal casting apparatus, e.g. moulds, linings therefor, means for feeding molten metal, cleansing moulds, removing castings (making or lining moulds B22C) · CPC title

• B22D13/107

  Means for feeding molten metal · CPC title

• B22D13/101 Primary

  Moulds · CPC title

• B22D41/04

  tiltable · CPC title

• F27D3/14

  Charging or discharging liquid or molten material · CPC title