Powder recycling device and method for metal three-dimensional printing device

A 3D printing and recycling device technology, applied in the direction of process efficiency improvement, energy efficiency improvement, additive manufacturing, etc., can solve problems such as increased oxygen content, and achieve the effect of simplifying operation, ensuring sealing, and reducing costs

Pending Publication Date: 2020-02-21
武汉光谷航天三江激光产业技术研究有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the problem of the current metal selective laser melting equipment, the present invention provides a powder recovery device for metal 3D printing equipment, which can effectively solve the problem of increased oxygen content caused by replacing the recovery bottle during the printing process of the equipment

Method used

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  • Powder recycling device and method for metal three-dimensional printing device
  • Powder recycling device and method for metal three-dimensional printing device
  • Powder recycling device and method for metal three-dimensional printing device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] A powder recovery device for metal 3D printing equipment, including a recovery bottle and a ventilation tube, the recovery bottle is provided with a powder recovery port, a valve is installed on the powder recovery port, and the ventilation tube extends through the valve to the recovery inside the bottle.

[0043] In this embodiment, the valve is a butterfly valve. It is convenient to clean and recover the metal powder in the bottle after opening.

[0044] During the operation of the 3D printing equipment, when it is necessary to clean the powder in the recovery bottle, first close the valve on the recovery pipeline of the 3D printing equipment, remove the recovery bottle, open the butterfly valve to clean the powder in the recovery bottle; then extend the ventilation pipe through the butterfly valve to the recovery Inside the bottle, the inert gas is passed into the recovery bottle through the ventilation tube, and then the air in the recovery bottle is discharged, so...

Embodiment 2

[0046] Such as figure 1 As shown, a powder recovery device for metal 3D printing equipment includes a recovery bottle and a ventilation tube, the recovery bottle is provided with a powder recovery port, and a valve is installed on the powder recovery port, and the ventilation tube passes through the valve Extends to the inside of the recovery bottle.

[0047] In this embodiment, the valve is a butterfly valve.

[0048] The ventilation tube is connected with a non-oxidizing gas generating device, and the non-oxidizing gas generating device is an argon cylinder.

[0049] The powder recovery port is also equipped with a detection system, the detection system is XP-3180 handheld oxygen content detector, the detection system includes an oxygen sensor probe and a digital display device, used to detect the oxygen content in the recovery bottle, to ensure the recovery The oxygen content in the bottle meets the equipment usage index. First, close the valve and the butterfly valve co...

Embodiment 3

[0052] Such as figure 2 As shown, a powder recovery device for metal 3D printing equipment includes a recovery bottle and a ventilation tube. The recovery bottle is provided with a powder recovery port, and a butterfly valve is installed on the powder recovery port.

[0053]The ventilation tube is connected with a non-oxidizing gas generating device, and the non-oxidizing gas generating device is an argon gas bottle, and the argon gas in the argon gas bottle has a purity of 99.999% high-purity argon.

[0054] The powder recovery device for metal 3D printing equipment also includes a quick plug for the trachea, and the top and bottom of the recovery bottle are provided with a quick plug interface for the trachea and an air outlet interface. In this embodiment, the quick plug interface for the trachea and the air outlet The interfaces are all located on the top of the recovery bottle. The trachea quick plug is detachably connected to the trachea quick plug interface and the air...

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PUM

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Abstract

The invention discloses a powder recycling device for a metal three-dimensional printing device. The recycling device comprises a recycling bottle and a ventilating pipe; the recycling bottle is provided with a powder recycling port, the powder recycling port is provided with a valve, and the ventilating pipe extends into the recycling bottle after penetrating through the valve; the ventilating pipe is connected with a non-oxidizing gas generating device, and the non-oxidizing gas generating device is an argon bottle; a detecting system is arranged on the powder recycling port, and the detecting system comprises an oxygen measuring sensor probe and a digital display device; and the recycling device further comprises an air pipe quick plug. According to the recycling device, air in the cleaned recycling bottle can be discharged, so that the influence on the content of oxygen in a device forming cabin caused by replacing the powder recycling bottle is reduced, the phenomenon of oxidationof a large-size work piece in the printing process is avoided, and the quality and the yield of the work piece can be effectively improved; and the recycling device is simple in structure, convenientand fast to operate, low in cost, convenient to maintain and high in compatibility.

Description

technical field [0001] The invention relates to the field of 3D printing equipment, in particular to a powder recovery device and method for metal 3D printing equipment. Background technique [0002] Metal 3D printing is an emerging technology that is rapidly developing in the manufacturing field, especially in developed countries in Europe and America, there are already many types of metal 3D printers. Metal 3D printing is a kind of additive manufacturing technology. It is based on digital model files, sintering metal powder by laser, and printing three-dimensional objects layer by layer. [0003] Metal selective laser melting additive manufacturing is a processing technology that accumulates and forms materials layer by layer through digital model layering, and can directly construct complex structures with near-net shapes. For SLM metal printers, the capacity of the powder recovery bottle cannot meet the forming of large-sized parts, and the large-capacity recovery bottl...

Claims

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Application Information

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IPC IPC(8): B22F3/105B33Y40/00
CPCB33Y40/00B22F10/00B22F10/73B22F12/90B22F12/70B22F10/28Y02P10/25
Inventor 王锐万楚豪李方志胡真陈超郑增超安瑞丰
Owner 武汉光谷航天三江激光产业技术研究有限公司
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