EP 4308366 A1 20240124 - PRINTHEAD FOR A 3D PRINTER AND METHOD FOR OPERATING A PRINTHEAD
Title (en)
PRINTHEAD FOR A 3D PRINTER AND METHOD FOR OPERATING A PRINTHEAD
Title (de)
DRUCKKOPF FÜR EINEN 3D-DRUCKER UND VERFAHREN ZUM BETREIBEN EINES DRUCKKOPFES
Title (fr)
TÊTE D'IMPRESSION POUR IMPRIMANTE 3D ET PROCÉDÉ DE FONCTIONNEMENT D'UNE TÊTE D'IMPRESSION
Publication
Application
Priority
- DE 102021202627 A 20210318
- EP 2022056310 W 20220311
Abstract (en)
[origin: WO2022194694A1] The invention relates to a printhead (100) for a 3D printer, comprising an actuator device (110) which is arranged in a housing (1) of the printhead (100) for actuating a piston (3), a supply device (2) for a printable material (10), a flange (5) which is arranged on the housing (1) and the supply device (2) and which comprises a cooling device (50), a nozzle head (6) with heating elements (61, 63) in order to convert the material (10) from a solid phase (10) to a liquid phase (12) via a plastic phase (11), and a nozzle (8) for discharging the liquid phase (12) of the material (10) out of the nozzle head (6). According to the invention, a pocket piece (7) is arranged on a lower sub-region (42) of a separate piston bushing (4), wherein the pocket piece (7) has a centrally running bore (70) for receiving a piston needle (32) of the piston (3), and the pocket piece (7) has concentrically arranged openings (71) which form a fluidic connection between a cavity (40) arranged in the piston bushing (4) and a melt chamber (81) arranged in a lower part (62) of the nozzle head (6). The invention additionally relates to a method (200) for operating a printhead (100) according to the invention.
IPC 8 full level
B29C 64/106 (2017.01); B29C 64/209 (2017.01); B33Y 30/00 (2015.01)
CPC (source: EP KR US)
B29C 48/02 (2019.01 - KR); B29C 48/05 (2019.01 - KR); B29C 48/266 (2019.01 - KR); B29C 48/288 (2019.01 - KR); B29C 48/475 (2019.01 - KR); B29C 64/106 (2017.07 - EP KR); B29C 64/118 (2017.07 - US); B29C 64/209 (2017.07 - EP KR US); B29C 64/295 (2017.07 - KR US); B29C 64/321 (2017.07 - KR US); B29C 64/329 (2017.07 - KR); B33Y 10/00 (2014.12 - KR US); B33Y 30/00 (2014.12 - EP KR US); B33Y 40/10 (2020.01 - KR US); B29C 64/118 (2017.07 - EP)
Citation (search report)
See references of WO 2022194694A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
Designated validation state (EPC)
KH MA MD TN
DOCDB simple family (publication)
DE 102021202627 A1 20220922; CN 116997455 A 20231103; EP 4308366 A1 20240124; JP 2024511580 A 20240314; KR 20230158026 A 20231117; US 2024165876 A1 20240523; WO 2022194694 A1 20220922
DOCDB simple family (application)
DE 102021202627 A 20210318; CN 202280022217 A 20220311; EP 2022056310 W 20220311; EP 22713415 A 20220311; JP 2023555685 A 20220311; KR 20237034845 A 20220311; US 202218550602 A 20220311