Patent · US Active

Print head, method and system for 3D printing having variable discharge rate

US11130278B2 · kind B2 · utility

0Cited by

2References

8Claims

0Family size

Assignee

Covestro Deutschland AG · DE

Inventors

Dirk Achten · Leverkusen, DE
Thomas Büsgen · Leverkusen, DE
Levent Akbas · Witten, DE
Nicolas Degiorgio · Krefeld, DE
Jonas Künzel · Leverkusen, DE

Key dates

Filing date	Feb 27, 2018
Grant date	Sep 28, 2021
Priority date	—
Expiry date	Jun 10, 2038

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB33Y30/00
WIPO fieldOther special machines
WIPO sectorMechanical engineering

Abstract

The invention relates to a print head (100) for an additive fused deposition modelling method having a thermoplastic construction material, comprising:—at least one inlet (10) for receiving a construction material (11) into the print head;—at least one melt region, for melting the construction material (11), which is arranged downstream of the inlet (10) and is fluidically connected, at least temporarily, to the inlet (10); and—at least one first outlet (30) that is fluidically connected, at least temporarily, to the melt region (20), for discharging melted construction material (12) out of the melt region (29) at a first discharge rate; wherein—the print head (100) also comprises at least one second outlet (40) that is fluidically connected, at least temporarily, to the melt region (20) for discharging melted or non-melted construction material (11, 12) out of the melt region (20) at a second discharge rate; and—the first discharge rate can be influenced by a first discharge rate influencing device (50) for the melted construction material (12).

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.