3D (Three Dimensional) printing pen

Abstract

The invention discloses a 3D (Three Dimensional) printing pen. The 3D printing pen comprises a shell body and a charging barrel communicated with the inner part of the shell body, wherein a motor, a rotary barrel connected with the motor, a movable block arranged in the rotary barrel and a push rod are arranged in the shell body; an inner thread structure is arranged on an inner wall of the rotary barrel; the movable block is provided with an outer thread structure matched with the inner thread structure; the charging barrel is internally provided with a sliding piston; one end of the push rod is arranged in the rotary barrel and is connected with the movable block and the other end of the push rod penetrates into the charging barrel and is connected with the piston; when the motor is started, the motor drives the rotary barrel to rotate, so as to drive the movable block to move back and forth in the rotary barrel; and the push rod and the piston are linked with the movable block. According to the 3D printing pen disclosed by the invention, an acting force of the push rod is reduced so that the transmission is more stable, a pushing route of the piston is longer and the 3D printing pen is more convenient to use.

Description

technical field [0001] The invention relates to the technical field of 3D printing, in particular to a 3D printing pen. Background technique [0002] The current 3D printing pens mostly use line as the raw material, which is transmitted to the heating head part through the gear clamp line. It is inconvenient to use because of the high requirements on the shape of the raw material. Also, as in the prior art [CN 106819312A], the whole food material is used as a raw material, put into a barrel with a piston, and the motor directly drives the screw to rotate to push the piston to move, and the raw material is carried out. extrude. However, the existing technology tends to cause the screw to bear too much torque, especially when the piston moves the tail end, the screw torque will become larger and larger, making the screw easily deformed or broken, affecting the stability of the overall transmission, usually only by selecting a short The stroke is to move the piston, high-stre...

AI Technical Summary

Problems solved by technology

It is inconvenient to use because of high requirements on the shape of the raw material. Also, as in the prior art [CN 106819312A], the whole food material is used as a raw material, put into a barrel with a piston, and the motor directly drives the screw to rotate to push the piston to move, and the raw material is carried out. extrude

However, the existing technology tends to cause the screw to bear too much torque, especially when the piston moves the tail end, the screw torque will become larger and larger, making the screw easily deformed or broken, affecting the stability of the overall transmission, usually only by selecting a short The stroke is to move the piston, high-strength screw, and fluid with good fluidity as raw materials, which will limit the stroke of the piston, the material of the screw, and the selection of raw materials, which is inconvenient to use

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