Bottom-up powder feeding system

A powder feeding and powder storage technology, which is applied in the field of downlink powder feeding system, can solve the problems of low work efficiency and achieve the effects of convenient upgrading, improved forming efficiency and good rigidity

Active Publication Date: 2016-12-07
SICHUAN AEROSPACE LONG MARCH EQUIP MFG CO LTD
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0006] In this way, in a working cycle, the laser scanning

Method used

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Embodiment 1

[0031] Embodiment 1: see Figure 1 to Figure 5 , a downward powder feeding system, including a base 1, a forming chamber 2 is provided in the middle of the base 1, a powder feeding chamber 3 is respectively arranged on both sides of the forming chamber 2, and the side of the powder feeding chamber 3 away from the layer forming chamber 2 is respectively There is a powder storage bottle 4; the forming chamber 2, the powder feeding chamber 3, and the powder storage bottle 4 are arranged side by side and closely arranged, and the base 1 is provided with a powder spreading device that circulates powder between the two powder storage bottles 4;

[0032] Both the upper ends of the powder feeding bin 3 and the forming bin 2 are open and flush, the inner bottom of the powder feeding bin 3 is provided with a movable bottom plate, and the bottom of the powder feeding bin 3 is provided with a double guide column linear motion unit 5 that drives the movable bottom plate to move up and down....

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Abstract

The invention discloses a bottom-up powder feeding system. The bottom-up powder feeding system comprises a base, a forming bin is arranged in the middle of the base, a powder feeding bin is arranged on each of the two sides of the forming bin, and a powder storage bottle is arranged on the side, away from the forming bin, of each powder feeding bin, wherein the forming bin, the powder feeding bins and the powder storage bottles are installed side by side and arranged closely; the base is provided with a powder spreading device for spreading powder between the two powder storage bottles in a circulating mode; the upper ends of the powder feeding bins and the upper end of the forming bin are open and flush; movable bottom plates are arranged at the bottoms in the powder feeding bins, and double-guide-column linear motion units driving the movable bottom plates to move up and down are arranged under the powder feeding bins; and a horizontal two-freedom-degree fine adjustment platform is arranged inside the forming bin, and a double-guide-rail linear motion unit driving the horizontal two-freedom-degree fine adjustment platform to move up and down is arranged under the forming bin. According to the bottom-up powder feeding system, one-way one-time powder spreading within a working cycle is changed into bidirectional two-time powder spreading, and therefore the forming efficiency of 3D printing equipment is effectively improved; and the added structural members are applicable to traditional equipment, and therefore upgrading and transforming of the old equipment is convenient.

Description

technical field [0001] The invention relates to a powder feeding mechanism, in particular to a descending powder feeding system. Background technique [0002] Selective laser melting technology (SLM, Selective laser melting) is a kind of additive manufacturing technology, which is a technology in which metal powder is completely melted under the heat of a laser beam, cooled and solidified to form a shape. With the continuous innovation of 3D printing technology and the diversified development of printing materials, this new technology is widely used in industrial, military, medical and consumer fields. [0003] Several major systems of SLM laser 3D printing equipment include: laser scanning system, atmosphere control system, powder feeding system, etc. As one of the main system components, the powder feeding system directly determines the operating efficiency and forming accuracy of the equipment. [0004] According to the different powder feeding modes, the mainstream pow...

Claims

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Application Information

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IPC IPC(8): B22F3/105B33Y30/00
CPCB33Y30/00B22F10/10B22F10/00B22F12/90B22F12/33B22F12/52B22F12/49B22F10/20Y02P10/25
Inventor 杨振宇丑西平罗恒张虎
Owner SICHUAN AEROSPACE LONG MARCH EQUIP MFG CO LTD
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