3D printer piston system

Abstract

The invention discloses a piston system of a 3D printer. The 3D printer piston system comprises a cylinder sleeve, a piston skirt, a piston plate, a sealing device, a base plate locking mechanism, a base plate, a cover plate, a constant temperature device, a guide mechanism and a driving system. The cylinder sleeve is fixedly connected with a body of the 3D printer, the piston skirt is arranged onthe lower portion in the cylinder sleeve, the piston skirt is provided with the guide mechanism and the driving system, the piston plate is arranged at the upper end of the piston skirt, and the cover plate is arranged at the upper end of the piston plate. The 3D printer piston system is characterized in that the base plate and the cover plate are fixedly connected through a rapid locking mechanism, and the piston sealing device adopts a wedge strip force application type sealing device. The base plate is replaced quickly, and the printer is high in operation precision.

Description

technical field [0001] The invention relates to the field of additive manufacturing, in particular to a 3D printer piston system. Background technique [0002] Using different materials or different molding processes, the structure and principle of 3D printers are also different. The 3D printer that layer-by-layer powder sintering or layer-by-layer powder solidification is one of the more mature 3D printers at present. Including metal powder and non-metal powder 3D printers. The piston system of the 3D printer is the main functional component of the printer. At present, the piston system of the known 3D printer is relatively complex in structure, high in manufacturing cost, and has the following defects: 1. The friction between the sealing device and the cylinder liner is large, so that the As for the frequent occurrence of crawling, the printing quality is reduced; 2. The friction and sealing effect are not easy to adjust during use, and the powder leakage problem cannot b...

AI Technical Summary

Problems solved by technology

The piston system of a 3D printer is the main functional part of the printer. At present, the structure of the known piston system of this type of 3D printer is relatively complicated, the manufacturing cost is high, and there are the following defects: 1. The friction between the sealing device and the cylinder liner is relatively large, so that As for the frequent phenomenon of crawling, which reduces the printing quality; 2. The friction and sealing effect are not easy to adjust during use, and the powder leakage problem cannot be solved; 3. The base plate and the piston plate are directly fixed with screws, and the position of the screw and the position of the workpiece often cannot be avoided. In order to solve this problem, it is often necessary to equip multiple base plates with different screw positions, and the piston plate connected to the base plate is often scrapped in advance due to too many threaded holes

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