FDM 3D FDM 3D PRINTING APPARATUS AND ARTICLES MANUFACTURED THEREBY

• Main Authors: JUNG YOUNG SUK, KWAK JIN WOO, KIM GYUNG BOK, CHO SHIN HU
• Format: Patent
• Language: English; Korean
• Published: 27.02.2023
• Subjects: ADDITIVE MANUFACTURING TECHNOLOGY; ADDITIVE MANUFACTURING, i.e. MANUFACTURING OFTHREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVEAGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING,STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING; PERFORMING OPERATIONS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR; SHAPING OR JOINING OF PLASTICS; TRANSPORTING; WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

Provided is a FDM 3D printing device comprising: a printing bed; a nozzle; an extruding unit; a screw; and a cutter. The printing bed provides a space for outputting an output to an upper surface. The nozzle is provided in an upper part of the printing bed, and outputs one or more among a first raw material, a second raw material, or a third raw material to the printing bed. The extruding unit is provided in an upper end of the nozzle, and provides a first inlet for injecting the first raw material in one side, a second inlet for injecting the second raw material or the third raw material in the one side, and a screw which extrudes one or more among the first raw material, the second raw material, or the third raw material. The screw is provided inside the extruding unit, provides an inlet hole for injecting the first raw material in an upper part and an outlet hole for extruding the first raw material in a lower part, and extrudes the first raw material, the second raw material, or the third raw material by rotation. The cutter is provided in an upper end of the extruding unit, and cuts the first raw material. The present invention can manufacture the output with improved strength. FDM 방식의 3D 프린팅 장치로서, 상면으로 출력물이 출력되는 공간을 제공하는 프린팅 베드; 프린팅 베드의 상부에 구비되어 제1원료 또는 제2원료 또는 제3원료 중 어느 하나 이상을 프린팅 베드로 출력하는 노즐; 노즐 상단에 마련되고, 일측에 제1원료가 투입되는 제1투입구가 마련되며, 일측에 제2원료 또는 제3원료가 투입되는 제2투입구가 마련되고, 제1원료 또는 제2원료 또는 제3원료 중 어느 하나 이상을 압출하는 스크류가 마련된 압출부; 압출부 내부에 마련되며, 상부에 제1원료가 투입되는 투입홀이 마련되고, 하부에는 제1원료가 압출되는 배출홀이 마련되며, 회전에 의해 제1원료 또는 제2원료 또는 제3원료를 압출하는 스크류; 및 압출부 상단에 마련되어 제1원료를 커팅하는 커터;를 포함하는 FDM 3D 프린팅 장치가 소개된다.