Reinforcing device for preventing first layer of printing model from being deformed in 3D printer construction platform

Abstract

The invention discloses a reinforcing device for preventing a first layer of a printing model from being deformed in a 3D printer construction platform. The reinforcing device involves the printing platform, wherein four side edges of the printing platform are provided with four rectangular grooves used for installing the printing platform, the upper surface of the printing platform is a printingarea, the printing area is connected with a printing model after printing, fixing screw hole positions are uniformly arranged on the portions, outside the center of the printing area, of the printingplatform, the fixing screw hole positions are in threaded connection with pre-buried screws, the printing area is uniformly provided with molten material stepped lock holes, the periphery of the printing model is uniformly provided with pressing pieces used for fixing the edges of the printing model, one ends of the pressing pieces are provided with gaskets to be in contact with the printing platform, the other ends of the pressing pieces are in contact with the edges of the printing model, a square clamping hole is formed in each pressing piece, and the pre-buried screws penetrate through theclamping holes and are in threaded connection with the fixing screw hole positions. Through the arrangement, the reinforcing device can prevent the situation that the printing model is shrunk and warped in the first layer, and the first layer of the printing model can be reinforced.

Description

technical field [0001] The invention relates to the field of 3D printing, in particular to a reinforcing device for preventing deformation of the first layer of a printing model for a 3D printer construction platform. Background technique [0002] Edge warping is a common problem in the 3D printing process. This is due to the principle of thermal expansion and contraction of printing materials, which makes the bottom edge of the model in contact with the printing platform easier to warp, or even detached from the platform. The light one will affect the printing effect. , causing the bottom of the model to deform, and severe cases will lead to printing failure. The reason for warping is as long as: when the printing consumables are heated in the extruder, they have a tendency to expand. Once in the molten state, the plastic is deposited on the build platform layer by layer. When the molten plastic cools and solidifies, it will also Shrinkage, when printing a part, the first ...

AI Technical Summary

Problems solved by technology

However, the hole printing platforms currently on the market use through holes, which overcome the shrinkage force of the printing material in the horizontal direction of the printing platform, and do not fundamentally solve the tensile force on the material in the vertical direction. For large and tall models, when printing , the periphery of the model will be subjected to a strong contraction force from above, which will pull out the material entering the through hole and cause the model to warp

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