Method and apparatus for producing mold parts for foundries

US5291936A · kind A · utility

Assignee

• Adolf Hottinger Maschinenbau GmbH · DE

Inventors

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

Key dates

• Filing date: Oct 25, 1991
• Grant date: Mar 8, 1994
• Expiry date: Oct 25, 2011

Classification

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

Abstract

The apparatus includes a mold unit for at least two mold parts, with in each case at least two separate shooting heads and sand magazines with separate shooting hood shoot-out areas and in which the shooting heads are subject to the action of individual shooting air sources. In the method a unit with mold cavities for at least two mold parts to be interconnected is moved under a shooting station, which is provided with at least two shooting heads and sand magazines with separate shooting hood shoot-out areas and from the magazines sand is shot into the mold unit cavities for the different mold parts with different pressures and different sand compositions.