Global Patent Index - EP 4308328 A1

EP 4308328 A1 20240124 - METHOD FOR OPERATING A PRINT HEAD FOR A 3D PRINTER AND PRINT HEAD FOR A 3D PRINTER FOR CARRYING OUT THE METHOD

Title (en)

METHOD FOR OPERATING A PRINT HEAD FOR A 3D PRINTER AND PRINT HEAD FOR A 3D PRINTER FOR CARRYING OUT THE METHOD

Title (de)

VERFAHREN ZUM BETREIBEN EINES DRUCKKOPFES FÜR EINEN 3D-DRUCKER UND DRUCKKOPF FÜR EINEN 3D-DRUCKER ZUR DURCHFÜHRUNG DES VERFAHRENS

Title (fr)

PROCÉDÉ POUR FAIRE FONCTIONNER UNE TÊTE D'IMPRESSION POUR UNE IMPRIMANTE 3D ET TÊTE D'IMPRESSION POUR UNE IMPRIMANTE 3D POUR LA MISE EN OEUVRE DU PROCÉDÉ

Publication

EP 4308328 A1 20240124 (DE)

Application

EP 22712400 A 20220310

Priority

  • DE 102021202640 A 20210318
  • EP 2022056235 W 20220310

Abstract (en)

[origin: WO2022194675A1] The invention relates to a method (200) for operating a print head (10) for a 3D printer. According to the invention, the method (200) comprises the following steps: filling (210) a cavity (40) with printable material (10) by means of a feed device (2); closing (220) an opening cross-section (21) of a piston bushing (4) by the advance of a piston (3) starting from a starting position (3a) in the direction of a nozzle (8) of the print head (100); converting (230) the material from a solid phase (10) via a plastic phase (11) into a liquid phase (12); compressing (240) the material (10, 11, 12); determining (250) a spring constant of the liquid phase (12); print preparation (260) of the liquid phase (12); dispensing (270) the liquid phase (12) of the material (10) from the nozzle (8) for printing a three-dimensional component (9); returning (280) the piston (3) to the starting position (3a) and repeating (290) the steps (210) to (280) until terminating the method (200). The invention also relates to a print head (100) for a 3D printer for carrying out the method (200) according to the invention.

IPC 8 full level

B22F 10/00 (2021.01); B22F 12/00 (2021.01); B29C 48/02 (2019.01); B29C 48/05 (2019.01); B29C 48/25 (2019.01); B29C 48/285 (2019.01); B29C 48/475 (2019.01); B29C 48/92 (2019.01); B29C 64/118 (2017.01); B29C 64/209 (2017.01); B29C 64/255 (2017.01); B29C 64/295 (2017.01); B29C 64/314 (2017.01); B29C 64/329 (2017.01); B29C 64/343 (2017.01); B29C 64/393 (2017.01); B33Y 10/00 (2015.01); B33Y 30/00 (2015.01); B33Y 50/02 (2015.01)

CPC (source: EP KR US)

B22F 10/18 (2021.01 - EP); B22F 12/53 (2021.01 - EP); B29C 48/02 (2019.01 - EP KR); B29C 48/05 (2019.01 - EP KR); B29C 48/143 (2019.01 - KR); B29C 48/266 (2019.01 - EP KR); B29C 48/288 (2019.01 - EP KR); B29C 48/475 (2019.01 - EP KR); B29C 48/92 (2019.01 - EP KR); B29C 64/106 (2017.07 - KR US); B29C 64/118 (2017.07 - EP); B29C 64/209 (2017.07 - EP KR US); B29C 64/255 (2017.07 - EP US); B29C 64/295 (2017.07 - EP KR US); B29C 64/314 (2017.07 - EP KR); B29C 64/321 (2017.07 - KR US); B29C 64/329 (2017.07 - EP KR US); B29C 64/343 (2017.07 - EP); B29C 64/393 (2017.07 - EP KR US); B33Y 10/00 (2014.12 - EP KR US); B33Y 30/00 (2014.12 - EP KR US); B33Y 40/10 (2020.01 - KR); B33Y 50/02 (2014.12 - EP KR US); B29C 2948/92028 (2019.01 - EP KR); B29C 2948/92209 (2019.01 - KR); B29C 2948/9238 (2019.01 - EP KR); B29C 2948/92514 (2019.01 - KR); B29C 2948/92523 (2019.01 - KR)

Citation (search report)

See references of WO 2022194675A1

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 102021202640 A1 20220922; CN 117320826 A 20231229; EP 4308328 A1 20240124; JP 2024511581 A 20240314; KR 20230158024 A 20231117; US 2024217175 A1 20240704; WO 2022194675 A1 20220922

DOCDB simple family (application)

DE 102021202640 A 20210318; CN 202280035488 A 20220310; EP 2022056235 W 20220310; EP 22712400 A 20220310; JP 2023555686 A 20220310; KR 20237034843 A 20220310; US 202218550704 A 20220310