Motor extrusion head for 3D printer

Abstract

The invention discloses a motor extrusion head for a 3D printer. The motor extrusion head comprises a housing and a spray head base, wherein a motor fixing seat is arranged on the spray head base; a motor is arranged on the motor fixing seat and is rotationally connected with a wire feed roll; a wire feeding mechanism base is arranged on the motor; a V-shaped bearing pedestal and a V-shaped bearing reset spring are arranged on the wire feeding mechanism base; a V-shaped bearing pressing seat is arranged on the V-shaped bearing pedestal; a V-shaped bearing is arranged on the V-shaped bearing pressing seat; a steering engine fixing rack is arranged on the spray head base; a steering engine is arranged on the steering engine fixing rack; a steering engine swing rod is arranged on the steering engine; a leveling sensor is arranged on the steering engine swing rod. According to the motor extrusion head for the 3D printer, a clamping force between the wire feed roll and the V-shaped bearing to wire materials is improved, so that wire feeding stability is improved; a Z-axis platform is adjusted to be in a horizontal position through the leveling sensor, so that processing precision and surface quality of the 3D printer are improved; since the circumstance of wire blocking of the extrusion head can be judged automatically, normal wire feeding can be ensured.

Description

technical field [0001] The invention belongs to the technical field of structural design of a 3D printer, and in particular relates to a motor extrusion head for a 3D printer. Background technique [0002] 3D printing technology appeared in the 1980s and is also known as "rapid prototyping technology". It is a technology based on digital model files and using adhesive materials to construct objects by layer-by-layer printing. 3D printing technology is often used to manufacture models in the fields of model manufacturing and industrial design, and is gradually used in the direct manufacture of some products. There are already parts printed using this technology. Its biggest advantage is that it does not require machining or Abrasives can directly print any object from the graphics data designed by the computer through software slices and 3D printers, thereby greatly shortening the product development cycle, improving productivity and reducing production costs. 3D printing te...

AI Technical Summary

Problems solved by technology

[0004] At present, the extrusion mechanism used in 3D printers based on FDM fusion lamination molding technology will encounter the following problems during work: (1) During the entire printing process, the nozzle does not produce wire or the wire is intermittent due to the slippage of the wire feed wheel ;(2) The platform will be out of level, which may cause the first layer of the model to be very firm in one position, but basically not glued in another position, and even the movement of the platform from a low position to a high position will damage the extrusion mechanism; (3) When the extrusion mechanism is blocked, the wire feed wheel will slip with the wire material

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