3D printer head and 3D printer

A 3D printer and printer head technology, applied in the field of 3D printing, can solve problems such as poor bonding of the upper and lower layers, high product defects, breakage or detachment, and achieve the effect of simplifying the pre-treatment process

Pending Publication Date: 2018-08-03
KUNSHAN KADAM NEW MATERIAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

(b) Change the feeding method of the printer: feed the rod with a diameter of 6mm×150mm into the heating chamber through a unique feeding mechanism; secondly, in the connection between the printing layer and the printing layer, due to the thermal conductivity of metal/non-metal It is much higher than that of plastic materials, so when using metal/non-metal and binder for mixed feeding, the next layer of material is easy to solidify due to easy heat

Method used

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  • 3D printer head and 3D printer
  • 3D printer head and 3D printer
  • 3D printer head and 3D printer

Examples

Experimental program
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Effect test

Embodiment

[0043] A preparation method of feeding material for 3D printing of the present embodiment is as follows:

[0044] (1) 60vol% stainless steel metal is mixed with 40vol% polymer binder, and described polymer binder comprises: polyoxymethylene 86wt%, polypropylene 8wt%, stearic acid 1wt%, thermal stabilizer 0.5wt% , plasticizer 2wt%, surfactant 1wt%, lubricant 1.5wt%; said raw material is added in the internal mixer, mixed at 170 ℃ for 1h;

[0045] (2) Utilize the granulator to extrude the material obtained after step (1) mixing into a granular material with a diameter of 3 mm, obtain the 3D printing feed after cooling, and process the granules into a wire-like feed Material spare.

[0046] (3) Place the feeding material obtained in step (2) on the feed end 11 of the FDM type 3D printer.

[0047] (4) Enter the feeding material of step (3) feeding end 11 into the crushing mechanism 3, crush or pulverize the granular feed, and move to the heating and melting mechanism 4 along wit...

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Abstract

The invention provides a 3D printer head and a 3D printer. The 3D printer head comprises a printer head main body and a machine frame, wherein the printer head main body comprises a feeding end and adischarging end; a feeding cavity is formed between the feeding end and the discharging end, and two end parts of the feeding cavity are correspondingly in communication with the feeding end and the discharging end; a rotating shaft is arranged in the feeding cavity, the machine frame is connected with the top of the rotating shaft through a connecting block, and a material extruding mechanism isconnected with the bottom of the rotating shaft; a heating and melting mechanism is annularly arranged on the outer wall of the feeding cavity, a crushing mechanism is arranged on the inner wall of the printer head body, and the heating and melting mechanism is connected with the bottom of the crushing mechanism; and a pre-heating mechanism is arranged on the side portion of the discharging end, and the pre-heating mechanism is connected with the bottom of the heating and melting mechanism. The 3D printer is not limited to a feeding form, the bonding problem among printing layers are effectively improved, and bad bonding phenomena such as cracking, faults, warping and the like among the printing layers are solved.

Description

technical field [0001] The invention belongs to the technical field of 3D printing, and relates to a 3D printer head and a 3D printer, in particular to an FDM type 3D printer head and a 3D printer. Background technique [0002] 3D printing technology (3D printing), also known as three-dimensional printing technology, is based on digital model files, using powdered metal, non-metal powder or plastic and other bondable materials to construct objects by layer-by-layer printing. technology. [0003] 3D printing technology was first applied to plastic materials. FDM (Fused Deposition Modeling) Fused Deposition Modeling technology is the main method at present. It heats and melts the hot-melt material, and at the same time, under the control of the computer, the three-dimensional nozzle selectively coats the material on the working surface according to the information of the cross-sectional profile. On the stage, a layer of section is formed after rapid cooling. After one layer...

Claims

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Application Information

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IPC IPC(8): B22F3/105B33Y30/00B33Y40/00
CPCB33Y30/00B33Y40/00B22F10/00B22F10/18B22F10/368B22F12/13B22F12/50Y02P10/25
Inventor 侯春树周龙金侯文洁
Owner KUNSHAN KADAM NEW MATERIAL TECH CO LTD
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