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3D (3-dimensional) print head for metal melt extrusion molding

A technology of extrusion molding and metal melting, which is applied in the field of 3D printing head and metal melting extrusion molding, which can solve the problems that have not been reported on the design of 3D printing head, and achieve the effect of avoiding excessive heat transfer.

Active Publication Date: 2015-02-11
CHONGQING INST OF GREEN & INTELLIGENT TECH CHINESE ACADEMY OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The 3D printing head is the core component of 3D printing, but so far, there have been no reports on the design of the 3D printing head for metal melt extrusion

Method used

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  • 3D (3-dimensional) print head for metal melt extrusion molding

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Embodiment 1

[0019] Such as figure 1 As shown, the 3D printing head for metal melt extrusion molding according to the present invention includes a housing 1, a raw material passage, a heating system, a cooling system and a temperature control system. The raw material passage is located inside the housing 1 and includes a raw material inlet, Alignment wheel 3, transfer roller 4, elongated hollow crucible 7 (the inner wall 8 of crucible 7 is smooth in this embodiment, less to metal movement / flow resistance) and raw material outlet 11, described raw material outlet 11 is provided with for The heat insulating ring 12 that prevents the heat transfer between the crucible 7 and the metal melt and the outside world. The metal raw material 2 enters the channel from the raw material inlet, and is corrected by the collimation wheel 3. The molten metal leaves the channel from the raw material outlet 11; the outside of the crucible 7 is coated with a heat shield 9 near the raw material outlet 11, and t...

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Abstract

The invention discloses a 3D (3-dimensional) print head for metal melt extrusion molding. The 3D print head comprises a casing, a raw material channel, a heating system, a cooling system and a temperature control system, wherein the raw material channel comprises a raw material inlet, conveying rollers, a strip-shaped hollow crucible, a raw material outlet and a thermal insulation ring located at the raw material outlet, and the outside, close to the raw material outlet end, of the crucible is wrapped with a thermal shielding layer; the heating system comprises an electromagnetic induction coil and an electromagnetic induction power supply which are arranged between the thermal shielding layer and the crucible in a sleeving manner; the cooling system comprises a water cooling jacket arranged on the crucible and close to the outside of the raw material inlet end as well as a cooling water supply device; and the temperature control system comprises a temperature sensor, a data analysis module and a PLC (programmable logic controller) control unit used for adjusting the power of the electromagnetic induction coil and / or the flow of cooling water. The 3D print head can finish heating melting of a metal raw material quickly and solves the problem that a common metal material cannot be subjected to melt extrusion molding.

Description

technical field [0001] The invention belongs to the technical field of three-dimensional manufacturing, and relates to metal melting extrusion molding technology, in particular to a 3D printing head for metal melting extrusion molding. Background technique [0002] In the past 20 years since its inception, 3D printing technology has developed rapidly. According to the classification of printing materials, 3D printing can be divided into metal, non-metal, ceramic materials, composite materials and biomaterial printing technologies; according to the classification of molding methods, 3D printing can be divided into powder sintering technology (SLS), powder melting technology (SLM), Laser Near Shaping Technology (LENS) and Extrusion Melting Technology (FDM). [0003] Metal materials have a high melting point, and generally choose high-energy beam sintering / melting methods, such as SLM, LENS, and EBM technologies; the material form is spherical powder with a particle size rangi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22F3/20
Inventor 王国玉范树迁纪丽娜段宣明杨毓杰陈勇王林志
Owner CHONGQING INST OF GREEN & INTELLIGENT TECH CHINESE ACADEMY OF SCI
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