Device and method of filling core-shooting heads with mold-core materials

US5458180A · kind A · utility

Assignee

• Adolf Hottinger Maschinenbau GmbH · DE

Inventors

• Werner Landua · Mannheim, DE
• Reiner Rommel · Katzenelnbogen, DE

Key dates

• Filing date: Jan 21, 1994
• Grant date: Oct 17, 1995
• Expiry date: Jan 21, 2014

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B22C15/24
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

A storage hopper retains the mold core material and an outlet member is connected below the hopper for discharging the mold core material into the core shooting head. The outlet member is inserted into the core shooting head and is mounted on a vertically adjustable machine frame such that it may be inserted to various depths within the core shooting head and may also be removed. A shutoff device in the form of a rotating shutter closes the outlet member. A frame supports the outlet member and the storage hopper and vertically adjusts both for immersion within the core shooting head. A displacement measuring sensor detects the vertical position of the vertical adjustment members in relation to the machine frame. In the method the storage hopper is filled with mold core material, the outlet member is positioned over the core shooting head, and the outlet member is immersed within the core shooting head. The shutter is then opened to partially fill the core shooting head with the core material to a predetermined filling height corresponding to the lower edge of the outlet member. The outlet member is then closed by rotation of the shutter, and then moved laterally within the core sho…