Coater arrangement for a 3D printer

US10695981B2 · kind B2 · utility

Assignee

• ExOne GmbH · US

Inventors

• Rainer Hochsmann · Genderkingen, DE
• Alexander Muller · Steinen, DE
• Sven Klaua · Augsburg, DE

Key dates

• Filing date: Aug 26, 2015
• Grant date: Jun 30, 2020
• Expiry date: Jul 8, 2037

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02P10/25
• WIPO field: Other special machines
• WIPO sector: Mechanical engineering

Abstract

A coating device arrangement 1 for a 3D printer 100 is described, comprising a coating device 3 having a carrier structure 21a to 21c and a container 17 fixed to the carrier structure, defining an inner cavity for receiving particulate construction material, which leads to an opening for outputting the particulate construction material, a vibration device 23 configured to vibrate particulate construction material received in the container and thereby to influence the discharge of construction material from the opening, and a stroking member 15a attached to the coating device, configured to stroke particulate construction material output from the opening to thereby level and/or compress the output particulate material, and/or a closing device 31 configured to selectively close the opening and comprising a closing member 31a attached to the coating device 3, wherein the stroking member 15a and/or the closing member 31a are fixed to the carrier structure to be vibration-decoupled from the vibration generated by means of the vibration device in the container 17.