Casting die device and casting method

Patent metadata

Field	Value
Publication number	US-10058915-B2
Application number	US-201515129977-A
Country	US
Kind code	B2
Filing date	Mar 24, 2015
Priority date	Mar 31, 2014
Publication date	Aug 28, 2018
Grant date	Aug 28, 2018

Abstract

A casting die device and a casting method. The casting die device has a core pin for forming an inner hole in a casted article. The core pin is a hollow body, and a pressurizing pin is inserted into a hollow inner part of the core pin. Vibrations from a vibrator of a micro vibration machine are imparted to the pressurizing pin via a vibration transmission member. The vibrations further propagate to the core pin from the pressurizing pin, and then propagate to the area surrounding the core pin in a molten metal that has been poured into a cavity.

First claim

The invention claimed is:

1. A casting die device for obtaining a cast product, an inner hole being formed in the cast product, at least one end of the inner hole being open, the casting die device, comprising:
a core pin having a hollow structure and configured to form the inner hole; a displacement drive source;
a pressurizing pin inserted into a hollow interior portion of the core pin, and configured to be displaced by operation of the displacement drive source and apply pressure to molten metal introduced into a cavity;
a vibration generating unit configured to generate vibrations applied to the pressurizing pin; and
a vibration transmission member configured to transmit the vibrations generated by the vibration generating unit to the pressurizing pin,
wherein the vibration generating unit includes a vibration element; and
in a state where the vibration element is stopped, the vibration element is separated from the vibration transmission member, and in a state where the vibration element is actuated, the vibration element repeatedly carries out abutment against and separation from the vibration transmission member, thereby generating mechanical vibrations.

2. The casting die device according to claim 1 , wherein the displacement drive source has a hollow structure, and the vibration transmission member is inserted into a hollow interior portion of the displacement drive source.

3. The casting die device according to claim 2 , wherein the displacement drive source is a double rod type cylinder including two displacement rods each having a hollow structure.

4. The casting die device according to claim 1 , wherein the casting die device is a high pressure casting die device configured to carry out high pressure casting by applying pressure to the molten metal and introducing the molten metal into the cavity.

Assignees

• Keihin Corp

Inventors

• Uehara Tetsuya
• Sakuma Fumihiro

Classifications

• B22D17/24

  Accessories for locating and holding cores or inserts · CPC title

• B22D17/22

  Dies (manufacture, see the appropriate class, e.g. B23P15/24); Die plates; Die supports; Cooling equipment for dies; Accessories for loosening and ejecting castings from dies · CPC title

• B22D25/02

  by its peculiarity of shape; of works of art {(cylinders, pistons B22D15/02)} · CPC title

• B22D27/08

  Shaking, vibrating, or turning of moulds · CPC title

• B22D17/2069 Primary

  Exerting after-pressure on the moulding material · CPC title