Printhead for a 3D printer
AssigneeRobert Bosch GmbH
InventorHendrik Jahnle
Life of this patent
Estimating the term…
Abstract
The invention relates to a printhead (100) for a 3D printer, comprising an actuating device (110) 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) with a cooling device (50), said flange being arranged at the housing (1) and the supply device (2), a nozzle head (6) with heating elements (61, 63) for converting the material (10) from a solid phase (10) into a liquid phase (12) 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 inside the nozzle head (6).
Claims10
A printhead (100) for a 3D printer comprising:
- an actuating device (110) 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) with a cooling device (50), said flange being arranged at the housing (1) and the supply device (2), a nozzle head (6) with heating elements (61, 63) for converting the material (10) from a solid phase (10) via a plastic phase (11) into a liquid phase (12), and a nozzle (8) for discharging the liquid phase (12) of the material (10) out of the nozzle head (6),
- wherein a pocket piece (7) is arranged inside the nozzle head (6), the pocket piece (7) has a centrally extending bore (70) for receiving a piston needle (32) of the piston (3), the pocket piece (7) has a plurality of openings (71) arranged radially outwardly from the centrally extending bore (70), the plurality of openings (71) form a fluidic connection to a cavity (40) arranged above the pocket piece (7) and a melt cavity (81) arranged in a lower part (62) of the nozzle head (6).
Dependencies are inferred from the claim text.