Rotary compression press

US6595767B1 · kind B1 · utility

Assignee

• Wilhelm Fette GmbH · DE

Inventors

• Jurgen Hinzpeter · Schwarzenbek, DE
• Ulrich Arndt · Lauenburg/Elbe, DE
• Heinrich Behrmann · Schwarzenbek, DE
• Helmut Bommrowitz · Mölln, DE
• Thomas Heinrich · Augsburg, DE
• Thomas Jacob · Stuttgart, DE
• Peter Luneburg · Ratzeburg, DE
• Nils Petersen · Lauenburg/Elbe, DE
• Hans-Joachim Pierags · Lübeck, DE
• Wolfgang Röhrs · Mölln, DE
• Elke Wittenberg · Schwarzenbek, DE
• Hans Wolf · Schwarzenbek, DE
• Ulrich Zeuschner · Schwarzenbek, DE

Key dates

• Filing date: Jul 19, 2000
• Grant date: Jul 22, 2003
• Expiry date: Jun 11, 2021

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B30B11/08
• WIPO field: Machine tools
• WIPO sector: Mechanical engineering

Abstract

A rotary compression press for cylindrical compacts, especially tablets, comprising a rotatably driven rotor including a die-plate and an upper and a lower ram guide for upper and lower rams cooperating with the die bores, and a pressure station with an upper and a lower pressure roller for applying a pressing power to the rams wherein the rams circumferentially have an annular tooth system which cooperates with an opposed tooth system in the area of a pressure station for the rams for the purpose of rotating the rams in the die bores thereof, characterized in that the opposed tooth system is defined by a rotatably supported gear which is acted on by a preset braking torque with the braking torque being chosen so as to be smaller than the torque of the ram when under a maximum pressing power.