Method for detecting flatness of 3D printing powder laying surface

Abstract

The invention discloses a method for detecting flatness of a 3D printing powder laying surface. The invention belongs to the technical field of 3D printing, the method is used for solving the problemsof cost waste and high defective product rate caused by the fact that the flatness of a powder laying surface cannot be known in time, and comprises the steps that image acquisition equipment, an image detection module and a printing control system are arranged on 3D printing equipment and are electrically connected with one another; the image acquisition equipment is used for acquiring an imageof a powder laying surface; the image detection module is used for receiving a powder laying surface image from the image acquisition equipment and detecting and judging the powder laying surface image; and the printing control system receives a detection and judgment result of the powder laying surface image from the image detection module, and sends a corresponding instruction according to the detection and judgment result. According to the method, poor product quality caused by continuous printing when the powder laying surface is uneven is avoided, the printing reject ratio is effectivelyreduced, and the production cost is saved.

Description

technical field [0001] The invention relates to the technical field of 3D printing, in particular to a detection method for 3D printing equipment. Background technique [0002] 3D printing technology is a kind of additive manufacturing technology, including melt extrusion technology and 3DP technology. In the application of 3DP technology, in order to obtain good printing products, it is necessary to control the thickness of each printing layer and the surface quality of each layer. , the smaller the layer thickness, the better the compactness of the product, the better the performance, the better the surface quality of the layer, the better the interlayer bonding of the product. The thickness of the layer can be set and is also determined by the accuracy of the equipment itself; while the surface quality of the layer is related to the raw materials used, the operating speed of the equipment, and the accuracy of the powder spreader. In the case of non-adjustable equipment a...

AI Technical Summary

Problems solved by technology

[0003] In view of the problem that the flatness of the 3D printing powder surface cannot be effectively controlled, it is necessary to propose a method for detecting the smoothness of the 3D printing powder surface. The method judges the flatness of the powder surface by collecting images of the powder surface. And feedback the uneven area information to the control system in real time, so as to avoid the poor product quality caused by the uneven powder surface and continue printing, effectively reduce the printing defect rate, and save production costs