An adjustable external support device for 3D printing

Abstract

The invention relates to an adjustable external supporting device for 3D printing, and belongs to the technical field of quick formation. The supporting device comprises a control unit, a lifting and transverse moving unit and a supporting unit, wherein the lifting and transverse moving unit and the supporting unit are controlled through the control unit; the supporting unit is mounted an output end of the lifting and transverse moving unit and comprises a support, and a telescopic supporting rod which extends to a position to be supported in order to support a suspension part of a three-dimensional object; the lower end of the supporting rod is fixedly connected to the support through a swinging driving device which is used for controlling a swinging angle of the supporting rod relative to the support. According to the device, the supporting unit is pushed to be below an area to be supported during the three-dimensional printing process, and then the swinging angle and the telescoping length of the supporting rod are controlled, so as to support the suspension part of the three-dimensional object. Therefore, the quantity of printing materials for printing a supporting structure can be decreased, and meanwhile, the three-dimensional object printing speed and quality can be effectively improved; and the device can be widely applicable to the technical field of quick formation.

Description

technical field [0001] The invention relates to the technical field of rapid prototyping, in particular to an adjustable external support device for 3D printing. Background technique [0002] 3D printing technology is based on the digital model of the product, and forms a three-dimensional object, that is, the target product, by slicing and layering the digital model, and superimposing materials layer by layer according to the layering results of the slices. Compared with the traditional manufacturing mode, 3D printing can form more complex products. [0003] FDM (Fused Deposition Modeling) printing technology is to heat the printing material to a molten state, and extrude it through the nozzle along the layered contour track of the part, and solidify after cooling. During the printing process, if the printing of the current slice layer requires the support of the previous slice layer, and the slice layer is the suspended part of the three-dimensional object, it is necessar...

AI Technical Summary

Problems solved by technology

[0004] In the existing technology, in order to determine the support position according to the critical printing length, and use the printing material to print the support structure, and after the printing is completed, these support structures need to be removed, which not only affects the printing efficiency and printing cost, but even destroys the shape of the formed part. Surface Quality

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