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Hot end device of desktop-level FDM (frequency-division multiplexing) 3D printer

A printer and desktop-level technology, applied in the field of desktop-level FDM3D printer hot-end devices, to achieve the effect of good printing effect, high quality of printed products, and reduction of wire drawing

Active Publication Date: 2016-01-20
湖州南浔港廊文化旅游发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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  • Hot end device of desktop-level FDM (frequency-division multiplexing) 3D printer
  • Hot end device of desktop-level FDM (frequency-division multiplexing) 3D printer

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Embodiment Construction

[0009] With reference to the accompanying drawings, a desktop-level FDM3D printer hot-end device of the present invention includes an extrusion head, which includes an extrusion nozzle 1 with a hexagonal flange in the middle, and a heat-conducting block for the extrusion head with a mounting hole. 3. Extrusion head insulation shell 4, stainless steel throat pipe 5, polytetrafluoroethylene liner pipe 7 installed in the stainless steel throat pipe 5; it is characterized in that it also includes a throat pipe radiator installed on the upper part of the stainless steel throat pipe 5, so The throat radiator includes 2 pieces of semiconductor cooling chips 6, water-cooled heat transfer block 8, water-cooled elbow 9, throat heat transfer block 10, and 2 PTFE fixing parts 11; the front and rear sides of the throat heat transfer block 10 are provided with There are threaded holes, the upper end is provided with an upper interface 13, and the lower part has an internal threaded hole that...

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Abstract

The invention discloses a hot end device of a desktop-level FDM (frequency-division multiplexing) 3D printer. The hot end device comprises an extrusion head, wherein the extrusion head comprises an extrusion spray nozzle (1) with a hexagonal flange in middle, an extrusion head heat conduction block (3) with a mounting hole position, an extrusion head thermal insulation housing (4), a stainless steel throat tube (5), a polytetrafluoroethylene lining tube (7) arranged in the stainless steel throat tube (5) and an MCH ceramic heating plate (12), and further comprises a throat tube radiator arranged on the upper part of the stainless steel throat tube (5), wherein the throat tube radiator comprises two semiconductor refrigeration plates (6), a water-cooling heat conduction block (8), a water-cooling bent tube (9), a throat tube heat conduction block (10) and two tetrafluoro fixing parts (11); and the outer upper part of the extrusion spray nozzle (1) is further provided with an inner threaded copper sleeve (2) in a sleeved mode, and is in threaded connection with the lower part of the stainless steel throat tube (5) through the upper part of the inner threaded copper sleeve (2). The hot end device of the desktop-level FDM 3D printer has the advantages of being stable in printing performance, free of wire drawing and adhesion, good in printing effect, high in quality of a printed product, and the like.

Description

technical field [0001] The invention relates to a hot end device of a desktop-level FDM3D printer, which belongs to the extrusion technology in the FDM3D printer. Background technique [0002] The hot end used in the desktop FDM3D printers currently on the market generally has a melting chamber (the melting chamber is a part of the inner flow channel whose temperature is higher than the melting point of the consumable when the extrusion head is working) is too long, resulting in a molten state during actual operation. The consumable section of the extruder is too long, which makes the extruder unable to control the extrusion of the consumable well. When not extruding or even withdrawing, some consumables still flow out of the extrusion nozzle, resulting in defects such as drawing and sticking, which affect the The quality of the finished print. Contents of the invention [0003] The purpose of the present invention is to invent a desktop-level FDM3D printer hot-end device...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C67/00B33Y30/00
Inventor 梁智明
Owner 湖州南浔港廊文化旅游发展有限公司
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