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Printing head for 3D printing metal

A technology of 3D printer and printing head, applied in the field of printing head

Pending Publication Date: 2022-07-29
ROBERT BOSCH GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There is now a problem with the relative movement between the crucible and the upper part of the metal printhead

Method used

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  • Printing head for 3D printing metal
  • Printing head for 3D printing metal

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0031] Figure 1 shows an example of a known print head 1 for a 3D printer, in particular a metal printer.

[0032] The printhead 1 comprises a housing 3, a device 28 for supplying the metal 14 in solid phase, a piston 5, storage containers 7, 27 with a discharge opening 10 and an actuator device 12 for moving the piston. The storage containers 7 , 27 have a melting zone 20 and an extrusion chamber 21 for the liquid phase 8 of the metal 14 , which adjoins the inert atmosphere 22 and is connected to the extrusion chamber 21 in such a way that the movement of the piston 5 can induce the liquid phase 21 . Metal 14 of phase 8 flows through outlet 10 . The liquid phase 8 of the metal 14 is also referred to as the melt 8 and the inert atmosphere 22 is formed by introducing the inert gas 22 into the storage vessels 7 , 27 . The inert gas 22 is preferably introduced into the storage containers 7 , 27 through the cold region of the print head 1 .

[0033] The housing 3 is constructed ...

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PUM

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Abstract

The invention relates to a print head (1) for a 3D printer, in particular a metal printer, comprising a housing (3), a device (28) for supplying metal (14), a piston (5), a storage container (7, 27) having an outlet opening (10), the storage container (7, 27) having a melting region (20) and an extrusion chamber (21) for a liquid phase (8), and an actuator device (12) for moving the piston (5), the melting region (20) adjoins an inert atmosphere (22) and is connected to the extrusion chamber (21) in such a way that a liquid phase (8) of the metal (14) can flow through the discharge opening (10) by means of a movement of the piston (5), the housing (3) being implemented in a multi-part manner and comprising at least one cooling flange (25), a thermal insulation plate (26) and a storage container (7, 27). The print head is characterized in that the storage container (7, 27) is connected to the cooling flange (25) and / or the insulation panel (26) by means of a centering device (50). The invention further relates to a method for operating and / or commissioning a printhead (1).

Description

technical field [0001] The present invention relates to a print head for a 3D printer suitable for printing metal and a method for operating and / or debugging the print head. Background technique [0002] 3D printers for thermoplastic materials obtain the solid phase of the material as a starting material, from which a liquid phase is generated and selectively applied at the locations belonging to the object to be manufactured. This 3D printer includes a print head in which the starting material is melted. Furthermore, means are provided for producing a relative movement between the print head and the working surface on which the object is to be formed. Here, only the print head, only the work surface or both the print head and the work surface can be moved. [0003] The printhead has a first operating state in which liquid material is ejected and a second operating state in which liquid material is not ejected. For example, the second operating state is used when another ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22F3/115B22F10/22B33Y30/00
CPCB22F3/115B22F10/22B33Y30/00B22F12/53B22F2999/00Y02P10/25B22F12/20
Inventor E·迈尔
Owner ROBERT BOSCH GMBH