Fused deposition 3d printer filament changing device

Abstract

The invention discloses a fused deposition type 3D printer wire exchanging device. The fused deposition type 3D printer wire exchanging device comprises a main support, a main machine head, a main shaft, a rotation stepping motor, a driven gear, a driving gear, a rotation frame and wire guiding heads, wherein bobbins are fixed on the front periphery of the rotation frame; the main machine head is installed on the top end of the main support; the main shaft is installed in a shaft hole of the main support; the rotation stepping motor is installed in a motor hole of the main support; the driving gear is installed on the main shaft of the rotation stepping motor; the driven gear is fixed at the center part at the rear part of the rotation shaft; the wire guiding heads are fixed on branch arms of the rotation frame; a central bearing shaft sleeve of the rotation frame is internally provided with a bearing; the main support penetrates through the driven gear of the center of the rear part of the rotation frame via the main shaft and is connected into an inner shaft sleeve of the bearing of the rotation frame. According to the fused deposition type 3D printer wire exchanging device, the consumables of a printer can be automatically replaced, the phenomena of wire breaking and vacancy in the consumable replacement process can be eradicated, and long-time unmanned printing of large-size components and multiple consumables can be performed.

Description

technical field [0001] The invention relates to a fused deposition 3D printer, in particular to a fused deposition 3D printer wire changing device. Background technique [0002] In the prior art, the fused deposition 3D printer uses filamentary printing consumables with a diameter of 1-2mm, and the printing device of the printer is controlled by a computer to achieve layer-by-layer melting and superimposition. It takes a long time and a large amount of consumables to print and make large-volume components. Continuous supply, while the replacement of consumables in existing fused deposition 3D printers requires manual replacement, and it is extremely easy to cause broken wires and vacancies during the replacement process, which is not suitable for unattended printing of long-term and large-volume components. Contents of the invention [0003] The purpose of the present invention is to provide a fused deposition type 3D printer filament changing device. [0004] The technic...

AI Technical Summary

Problems solved by technology

[0002] In the prior art, the fused deposition 3D printer uses filamentary printing consumables with a diameter of 1-2mm, and the printing device of the printer is controlled by a computer to achieve layer-by-layer melting and superimposition. It takes a long time and a large amount of consumables to print and make large-volume components. Continuous supply, while the existing fused deposition 3D printers need to replace the consumables manually, and it is extremely easy to cause broken wires and vacancies during the replacement process, which is not suitable for unattended printing of long-term and large-volume components

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