3D (Three-dimensional) printing extruder

Abstract

The invention discloses a 3D (Three-dimensional) printing extruder, which comprises a motor. A second base is arranged under the motor; an upper surface of the second base is connected with a lower surface of the motor; a coupler is arranged at an left side outer wall of the motor; an inner wall of the coupler is connected with an outer wall of the motor; a first rotary shaft is arranged at the inner wall of the coupler. According to the 3D printing extruder, through the cooperation of a first base, a standing rod and a support, and under the function of a fixed seat, the extruder is more compact to connect and more stable to work, so that the problem that the material amount extruded by a traditional extruder is non-uniform is solved; under the functions of the first rotary shaft, a second rotary shaft and a third rotary shaft, the defect that a rotary roller is stuck in a spray gun or broken off is overcome; under the function of the motor, the extrusion speed rate of a material canbe accelerated or slowed down through adjusting forward rotation or backward rotation of the motor, so that the defect that the extruding speed rate cannot be adjusted by the traditional extruder is overcome, and the 3D printing extruder is suitable to be popularized and applied.

Description

technical field [0001] The invention relates to the technical field of 3D printing, in particular to a 3D printing extruder. Background technique [0002] 3D printer, a machine of rapid prototyping technology, is a technology based on digital model files, using special wax, powdered metal or plastic and other bondable materials to construct objects by layer-by-layer printing , in the printing process of 3D printers, consumable extruders are needed to provide consumables for printing. Generally, the extruders of 3D printers are directly driven by stepper motors to drive the metal extrusion wheel. The outer ring of the extrusion wheel has a toothed friction ring. The consumables pass between the extrusion wheel and the press wheel, which can ensure that the extrusion will not slip and the extrusion effect is ensured, but there are still some defects in the existing extruder. In the prior art, for example, the application The invention patent No. 201520699817.2 includes a brac...

AI Technical Summary

Problems solved by technology

[0002] 3D printer, a machine of rapid prototyping technology, is a technology based on digital model files, using special wax, powdered metal or plastic and other bondable materials to construct objects by layer-by-layer printing , in the printing process of 3D printers, consumable extruders are needed to provide consumables for printing. Generally, the extruders of 3D printers are directly driven by stepper motors to drive the metal extrusion wheel. The outer ring of the extrusion wheel has a toothed friction ring. The consumables pass between the extrusion wheel and the press wheel, which can ensure that the extrusion will not slip and the extrusion effect is ensured, but there are still some defects in the existing extruder. In the prior art, for example, the application The invention patent No. 201520699817.2 includes a bracket, which is characterized in that a wire pressing lever is arranged on the bracket, and a feeding port is arranged on the top of the wire pressing lever, and a consumable detection switch is arranged on the feeding port, and the consumable detection

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