Material feeding mechanism for 3D printer

Abstract

The invention discloses a material feeding mechanism for a 3D printer. The material feeding mechanism comprises a stepping motor, wherein the stepping motor is connected with a motor bracket, the upper part of the motor bracket is connected with a fixed pressure plate, the motor bracket is connected with an upper connecting plate of the printer, a U-shaped groove is formed in the motor bracket, bracket screw holes are formed in the two sides of the mouth of the groove respectively, bosses are formed in the two sides of a horizontal end surface respectively, a motor connecting hole is formed in each boss, a wire feeding driving wheel is arranged on an output shaft of the stepping motor, a wire inlet and a wire outlet which are vertical to the axial line of the U-shaped groove are formed in each boss, a rectangular groove hole is formed in the middle of the fixed pressure plate, wire feeding wheel connecting holes are formed in the two side walls of the rectangular groove hole respectively and provided with wire feeding wheel fixed shafts respectively, and a wire feeding wheel is arranged on each wire feeding wheel fixed shaft and in the rectangular groove hole and is matched with the wire feeding driving wheel to finish feeding of a printing wire. The material feeding mechanism has a compact structure, is light in quality, good in rigidity, convenient to assemble and disassemble and less prone to deformation and is capable of ensuring reliable feeding of the printing wire and the quality of a printed product.

Description

technical field [0001] The invention relates to the technical field of 3D printers, in particular to a 3D printer material feeding mechanism. Background technique [0002] The material feeding mechanism of the 3D printer in the prior art is generally set on the upper support of the printer, or connected to the upper support plate through the support frame. The tight force makes the stability of wire feeding poor, and even affects the quality of printed products. At the same time, due to the heavy weight of the wire feeding and printing mechanism including the motor, the output shaft of the motor and the wire feeding structure are easily deformed and vibrated after being stressed. It also affects the stability of wire feeding and the accuracy of printing. Contents of the invention [0003] The purpose of the present invention is to provide a 3D printer material feeding mechanism to solve the above-mentioned problems in the prior art; A reliable supply to ensure the qualit...

AI Technical Summary

Problems solved by technology

[0002] The material feeding mechanism of the 3D printer in the prior art is generally set on the upper support of the printer, or connected to the upper support plate through the support frame. The tight force makes the stability of wire feeding poor, and even affects the quality of printed products. At the same time, due to the heavy weight of the wire feeding and printing mechanism including the motor, the output shaft of the motor and the wire feeding structure are easily deformed and vibrated after being stressed. It also affects the stability of wire feeding and the accuracy of printing

Images