A 3D printing sanding mechanism

Abstract

The invention provides a 3D printing sand laying mechanism, including a sand storage bucket, wherein the sand storage bucket is surrounded by a front panel, a rear panel and two side panels, the upper part of the sand storage bucket is provided with a sand supply port, and the lower part of the sand storage bucket is along the left and right sides. A sand outlet with a fixed width is provided in the direction, and the front panel and the rear panel above the sand outlet are V-shaped in cross-section along the front and rear directions. Among them, a rear lower sand roller extending along the left and right direction is arranged below the lower end of the rear panel. The lower sand roller is connected with the rear lower sand roller motor, and the rear lower sand roller motor is used to drive the rear lower sand roller to rotate forward; the lower end of the front panel is provided with a front lower sand roller extending in the left and right direction, and the front lower sand roller is connected to The front lower sand roller motor is connected, and the front lower sand roller motor is used to drive the front lower sand roller to rotate backward; the horizontal gap between the front lower sand roller and the rear lower sand roller is less than the width of the sand outlet. The sand spreading mechanism of the present invention has a simple structure, more even sand spreading, and the amount of sand can be adjusted, which can meet the requirements of the existing 3D printing technology.

Description

technical field [0001] The invention relates to the technical field of 3D printing equipment, in particular to a 3D printing sand laying mechanism. Background technique [0002] The emergence of 3D printing technology shortens the manufacturing time of new products, saves development costs, and promotes the design and development process of new products. In the existing sand mold 3D printing equipment, the sand laying device is an essential and important part. A large part of the printing quality and efficiency of 3D printing equipment depends on the sanding device. [0003] When the sanding device in the prior art is sanding for sand materials of different types or with different humidity, the amount of sand output and the uniformity of sanding cannot be guaranteed, which affects the quality of sanding and sand printing effect, and improves the accuracy of sand molds. Scrap rate. Contents of the invention [0004] In view of the above problems, the present invention ai...

AI Technical Summary

Problems solved by technology

[0003] When the sanding device in the prior art is sanding for sand materials of different types or with different humidity, the amount of sand output and the uniformity of sanding cannot be guaranteed, which affects the quality of sanding and sand printing effect, and improves the accuracy of sand molds. Scrap rate

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