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Selective spreading device and spreading method

A material spreading device and selective technology, applied in the field of 3D printing, can solve the problems such as the inability to realize the laying of composite materials, the slow material spreading speed, and the impact on the printing speed, and achieve flexible curing methods, fast material spreading speed, and improved printing. effect of speed

Active Publication Date: 2021-06-25
YUANZHI TECH SHANGHAI CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The material laying device lays the printing material through reciprocating motion. There is an empty stroke in the reciprocating motion, and there is a start-stop process. The material spreading speed is slow, and often only a single material can be laid, and the laying of composite materials cannot be realized generally; in addition, the above-mentioned laying Material and curing are carried out in time, further affecting the printing speed

Method used

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  • Selective spreading device and spreading method
  • Selective spreading device and spreading method
  • Selective spreading device and spreading method

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Embodiment Construction

[0081] In the following description, numerous specific details are given in order to provide a more thorough understanding of the present invention. It will be apparent, however, to one skilled in the art that the present invention may be practiced without one or more of these details. In other examples, some technical features known in the art are not described in order to avoid confusion with the present invention.

[0082] In order to thoroughly understand the present invention, detailed steps and detailed structures will be provided in the following description, so as to illustrate the technical solution of the present invention. Preferred embodiments of the present invention are described in detail below, however, the present invention may have other embodiments besides these detailed descriptions.

[0083] The present invention provides a selective material laying device, which is applied in the 3D printing process. In some embodiments, the device is mainly composed of ...

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Abstract

The invention provides a selective material spreading device, which is applied in the 3D printing process, comprising: a developing drum, the developing surface of which is in the shape of a truncated cone and rotates around a first axis; a developing module, used for rotating the developing drum During the process, a printing material layer with a preset pattern is formed on the developing surface of the developing drum; the material bed rotates around the third axis and cooperates with the developing drum to receive the printing material layer from the developing drum; the driving device is used for Drive the relative movement between the developing drum and the material bed, and increase the distance between them step by step or continuously during the printing process. The invention can greatly improve the printing speed, and is applicable to various molding methods at the same time, and the application type is stronger.

Description

technical field [0001] The invention relates to the technical field of 3D printing, in particular to a selective material laying device and a material spreading method. Background technique [0002] Existing 3D printing devices, such as SLS (Selective Laser Sintering), SLM (Selective Laser Sintering Melting), or 3DP (selective spraying of binders on powder beds to make models layer by layer) and other printing methods, on the workbench (or called Powder bed) A layer of powder material is laid with a material laying device, and then controlled by the control system, according to the information of the printed model, the laser beam is controlled to irradiate the laid powder layer or the binder injector is used to selectively spray the laid powder to form Selective curing layer. Then the worktable is lowered by one material layer thickness, and then the powder layer is laid and selectively solidified on the powder layer, and this process is repeated until the 3D model is print...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G03G15/08G03G15/16G03G15/20G03G15/22G03G15/00
CPCG03G15/0813G03G15/1615G03G15/20G03G15/22G03G15/6529
Inventor 季鹏凯
Owner YUANZHI TECH SHANGHAI CO LTD
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