Immersion type 3D printing platform

Abstract

The invention relates to an immersion type 3D printing platform. The immersion type 3D printing platform comprises a liquid storage part, a platform lifting part, a liquid circulating part and a heating part. The platform lifting part is stored in the liquid storage part, the liquid circulating part communicates with the liquid storage part, and the heating part is in insulation connection with the liquid storage part. According to the immersion type 3D printing platform, the liquid storage part and the heating part jointly act to enable the liquid temperature to be stabilized within the range which is applicable to eliminating material internal stress; and materials are extruded from extrusion equipment of a printer and then adhered to a tray or a model, and the model is gradually immersed in liquid. In the printing process, the uppermost layer of the model keeps being exposed above the liquid surface, the model is completely immersed in the liquid after printing is completed, and the device is withdrawn after complete forming and then cooled, so that the influence such as edge warping of material internal stress on the model is lowered in a maximizing mode.

Description

Technical field [0001] The invention relates to a 3D printer, in particular to an immersive 3D printing platform. Background technique [0002] In 3D printing technology, the extrusion equipment extrudes the raw materials layer by layer according to the set path to construct a three-dimensional model. The raw material is affected by its material expansion coefficient, from being extruded to forming, it will produce different degrees of internal stress, which in turn causes the model to deform, such as warping, cracking and even printing failure. Eliminating or reducing the internal stress of the material can improve the quality of the model. At present, the industry mostly uses methods such as heating the tray, sticking special double-sided tape on the tray, and sealing the printing space to form the model at a higher temperature to reduce the internal stress on the model. However, the heating method of the tray can only heat the nearest layers in contact with the model, and at ...

AI Technical Summary

Problems solved by technology

Raw materials are affected by their material expansion coefficients, and different degrees of internal stress will be generated during the process from being extruded to forming, which in turn will cause deformation of the model, such as edge warping, cracking or even printing failure

Eliminating or reducing the internal stress of the material can improve the quality of the model. At present, in the industry, methods such as heating the tray, sticking special double-sided tape on the tray, and sealing the printing space to form the model at a higher temperature are used to reduce the impact of internal stress on the model. However, the tray heating method can only heat the nearest layers in contact with the model, and at the same time it will reduce the strength of the formed layer, so it has no clear effect on suppressing deformation such as warping; stick special double-sided adhesive on the tray This method can only control the occurrence of edge warping to a certain extent, and at the same time it will increase the adhesion between the model and the tray, making it difficult to take the model, and even cause damage to some of the more delicate models; the airtight printing space makes the model work at a higher temperature The molding method has high requirements on the sealing of the equipment, especially for larger 3D printers, and the cost is high. At the same time, if the internal high temperature cannot be isolated from the wires and the mechanical structure, it will accelerate the wear and aging of the equipment.

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