Method of controlling the speed of a mechanical press

US4150616A · kind A · utility

Assignee

• L. Schuler GmbH · DE

Inventors

• Franz Schneider · Göppingen, DE
• Helmut Braitinger · Göppingen, DE

Key dates

• Filing date: May 30, 1978
• Grant date: Apr 24, 1979
• Expiry date: May 30, 1998

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B30B15/14
• WIPO field: Machine tools
• WIPO sector: Mechanical engineering

Abstract

A speed controlling arrangement and method for a mechanical press. The press has a crankshaft revolution which can be subdivided in principle into a discharging and charging region and a working region with the speed of the mechanical press being controlled between a maximum admissible speed and a minimum possible speed. The speed of travel of the press ram is controlled so that the speed of the press ram during the press discharging and charging region permits a safe discharging and charging of the press. During the working region, the press ram travels at a maximum permissible speed such that a stoppage of the press between the discharging and charging region and the working region is unnecessary.