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Powder-feeding head dust-collecting device for coaxial powder-feeding equipment

A dust removal device and coaxial powder feeding technology, which is applied in the field of 3D printing, can solve the problems of fire hazards and spark phenomena, and achieve good dust removal effect, improved dust removal effect, and light weight

Pending Publication Date: 2018-01-26
TSC LASER TECH DEV BEIJING CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As well as the powder attached to the surface of the replaced filter element, there will be sparks when it first encounters air, posing a fire hazard

Method used

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  • Powder-feeding head dust-collecting device for coaxial powder-feeding equipment
  • Powder-feeding head dust-collecting device for coaxial powder-feeding equipment
  • Powder-feeding head dust-collecting device for coaxial powder-feeding equipment

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Embodiment Construction

[0032] Refer to attached Figures 1 to 4 As shown, the coaxial powder feeding device in this embodiment includes a sealed cavity 20 , and the powder feeding head 1 and the molding surface 10 are located inside the sealed cavity 20 . The dust removal device includes a dust suction mechanism, a filter mechanism and a power mechanism.

[0033] The dust-absorbing mechanism is arranged above the powder-feeding nozzle 2 of the powder-feeding head 1, and it is preferably arranged on the annular dust-absorbing pipe 3 around the powder-feeding nozzle 2, and the annular dust-absorbing pipe 3 is provided with several dust-absorbing holes 11. The dust suction hole is distributed on the bottom and the inner side wall of the annular dust suction duct 3, as attached image 3 shown. The size of the suction hole can be designed according to the characteristics of the fluid, and the air intake flow of all the suction holes is uniform.

[0034] The dust suction mechanism is connected with th...

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Abstract

The invention discloses a powder-feeding head dust-collecting device for coaxial powder-feeding equipment. The coaxial powder-feeding equipment comprises a sealed cavity, a powder-feeding head is arranged into the sealed cavity. The dust-collecting device comprises a dust-collecting mechanism, a filtering mechanism and a power mechanism, the dust-collecting mechanism is arranged above a powder-feeding nozzle of the powder-feeding head and is connected with the filtering mechanism through a dust-collecting pipeline; the filtering mechanism comprises a filtering shell and a filtering element arranged in the filtering mechanism; the power mechanism is used for intaking the air around the powder-feeding nozzle into the dust-collecting mechanism, enabling the air to enter the filtering mechanism along the dust-collecting pipeline and discharging into the sealed cavity after filtering by the filtering element, the dust-collecting mechanism is an annular dust-collecting pipeline arranged around the powder-feeding nozzle, the filtering shell comprises an upper shell and a lower shell, the filtering element is connected to the top inside of the upper shell in a detachable manner, the dust-collecting pipeline is connected with the side wall of the upper shell, the lower shell is connected with the upper shell in the detachable manner. According to the invention, the design is simple, thedevice is convenient to dismount and mount and clean, and the dust-collecting effect is good.

Description

technical field [0001] The invention relates to the technical field of 3D printing, in particular to a powder feeding head dust removal device for coaxial powder feeding equipment. Background technique [0002] Additive Manufacturing (AM) is an advanced 3D and 4D printing manufacturing technology that has emerged in the past ten years. Its principle is to use a high-energy heat source of a laser to dissolve metal powder or wire on a metal substrate and gradually shape it. Parts (can also be non-metallic). There are two main forms of additive manufacturing: powder spreading and coaxial powder feeding. There are many factors that affect molding quality, such as process method, temperature control, powder spreading or powder feeding uniformity, material molding characteristics, working environment, etc. For the working environment, the dust removal device is indispensable as an auxiliary device. [0003] For easily oxidized powders, the working environment is mostly protecte...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D46/00B01D46/24B01D46/42B08B15/04B33Y40/00
Inventor 孙涛
Owner TSC LASER TECH DEV BEIJING CO LTD
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