An apparatus for building a three-dimensional article and a method for building a three-dimensional article

A technology of equipment and products, applied in the field of equipment for building three-dimensional products, can solve the problems of complicated production process, messy powder spraying system, and inability to reuse waste materials, etc., and achieve the effect of improving the production process

Inactive Publication Date: 2008-12-17
PTS SOFTVEHAR BV +4
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0015] However, due to the excessive powder during the manufacture and removal of 3D products, the powder spraying system becomes very messy and complicates the production process, so there is a lot of room for improvement in this machine design
In addition, there are many waste materials that cannot be reused

Method used

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  • An apparatus for building a three-dimensional article and a method for building a three-dimensional article
  • An apparatus for building a three-dimensional article and a method for building a three-dimensional article
  • An apparatus for building a three-dimensional article and a method for building a three-dimensional article

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Embodiment Construction

[0143] exist figure 1 with 2 Among them, the powder conveying system includes: a reservoir for conveying powder material 2; a powder conveying system 32 leading to a filter screen 7, which leads to a powder dosing device 3; a spraying system, which includes a 1 roller 16. The building chamber 1 comprises an inner wall 8 and an outer wall 9, a building platform 10 which is movable along the inner wall of the building chamber, eg by means of a piston. The building platform consists of an upper part comprising a grid and a lower part comprising a collapsible baffle.

[0144] The device also includes an adhesive reservoir 27 connected to the printhead reservoir 30 for delivering liquid reagents applied by the printhead 26 to the respective powder layers. At least 75% of the space formed between the upper part of the inner and outer walls of the build chamber 1 comprises direct contact with the powder recovery system whereby, via the upper (top) boundary of the build chamber 1, ...

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Abstract

The invention provides an apparatus for building a three-dimensional article in sequential cross-sectional layers, which apparatus comprises: a powder delivery system comprising one or more reservoirs for delivering a powder (2) and a powder spreading system (16); a printing system (26) for delivering a liquid; a build chamber (1) comprising an outer wall (5), an inner wall (8) and a build platform (10) which is movable along the inner wall of the build chamber; and a powder recovery system; wherein the building chamber comprises a space defined by the upper portion between the inner wall and the outer wall of the building chamber and this space is in communication with the powder recovery system and/or the build platform is capable of releasing unused powder (directly) from the build chamber in a downward direction into the powder recovery system. The invention further provides a method building a three-dimensional article wherein use is made of said apparatus.

Description

technical field [0001] The invention relates to a device for building three-dimensional products in successive cross-sectional layers, and a method for building such products using said device. Background technique [0002] There is an increasing demand to utilize engineering CAD (Computer Aided Design) data to manufacture high-strength, technically useful three-dimensional products. [0003] A variety of technologies have been proposed, most producing products that are fragile and of short or intermediate use. [0004] In US4575330 a method of laser addressing of liquid and paste photosensitive resins is described. While the method described is very successful, this technique requires laboratory-standard post-processing and sophisticated manipulations, resulting in artistically smooth surfaces, but somewhat limiting direct use to the product. [0005] Another technique is extrusion deposition, such as described in US6869559, to obtain very good properties, such as thermop...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C67/00
CPCB29C64/165B29C64/35B29C64/357B29C67/00B29C67/04
Inventor S·阿拉曼G·E·诺帕斯R·C·帕特尔P·皮朗P·西茨马
Owner PTS SOFTVEHAR BV
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