A wire feeding mechanism for fused deposition modeling 3D printers

Abstract

The invention discloses a wire feeding mechanism for fused deposition modeling 3D printers, including a crimping structure, a clamping structure and a wire feeding structure. The crimping structure includes a crimping box, a No. 1 threading sleeve and a No. 2 threading sleeve. The No. 1 threading sleeve and the No. 2 threading sleeve are respectively embedded on both sides of the crimping box. The invention has a compact structure and has the characteristics of fast wire feeding and long service life. The specific working process is: the output shaft of the No. 2 motor rotates at a certain angle, It can drive the two clamping blocks to clamp the plastic wire. After the driving rod rotates for half a circle, the output shaft of the second motor rotates in the opposite direction at a certain angle, and the two clamping blocks will be far away from each other. After the driving rod rotates for a week, the two clamping blocks The block will re-clamp the plastic wire, and this process can be repeated continuously to supply the plastic wire to the nozzle of the 3D printer, which solves the problem that the traditional wire feeding mechanism works for a long time, and the transmission wheel is prone to wear and tear, which causes the wire to slip and walk. Problems with slow filament and uneven extrusion force.

Description

technical field [0001] The invention relates to a wire feeding mechanism, in particular to a wire feeding mechanism for a fused deposition modeling 3D printer, and belongs to the technical field of 3D printers. Background technique [0002] Ordinary printers used in daily life can print flat objects designed by computers, and the so-called 3D printers are basically the same as ordinary printers, but the printing materials are somewhat different. The printing materials of ordinary printers are ink and paper, while 3D printers are equipped with metal Different "printing materials" such as ceramics, plastics, sand, etc. are real raw materials. After the printer is connected to the computer, the "printing materials" can be superimposed layer by layer through computer control, and finally the blueprint on the computer becomes Physical objects, in layman's terms, a 3D printer is a device that can "print" a real 3D object. The existing fused deposition modeling 3D printers mostly u...

AI Technical Summary

Problems solved by technology

[0002] Ordinary printers used in daily life can print flat objects designed by computers, and the so-called 3D printers are basically the same as ordinary printers, but the printing materials are somewhat different. The printing materials of ordinary printers are ink and paper, while 3D printers are equipped with metal Different "printing materials" such as ceramics, plastics, sand, etc. are real raw materials. After the printer is connected to the computer, the "printing materials" can be superimposed layer by layer through computer control, and finally the blueprint on the computer becomes Physical objects, in layman's terms, a 3D printer is a device that can "print" a real 3D object. The existing fused deposition modeling 3D printers mostly use plastic wire to provide raw materials. During the wire feeding process, the transfer roller works for a long time, which is very easy Abrasion occurs, so it will cause problems such as wire slippage, slow wire movement and uneven extrusion force. A new type of wire feeding mechanism is needed to provide power

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