公开(公告)号：KR100764848B1

公开(公告)日：2007-10-09

申请号：KR1020060037761

申请日：2006-04-26

Applicant: 한국기계연구원

Inventor： 김동수 ,  이택민 ,  강태구 ,  양정순 ,  김충환

IPC: H01L21/027 ,  H01L21/02

CPC classification number: G03F7/0002 ,  G03F7/0037 ,  H05K3/125

Abstract: A nozzle structure for a metal jet unit is provided to jet a molten metal accurately and smoothly by precisely setting a discharge condition of the molten metal. A metal jet unit includes a melting furnace(10) having a nozzle(15), and an actuator(20) having a plunger(21) pushing molten metal towards the nozzle. The nozzle has a plunger moving part receiving the plunger, a molten metal pressing part formed on a center of a bottom portion of the plunger moving part, and an orifice(18) formed on a center of a bottom of the molten metal pressing part. The plunger has a discharge pressing part protruding from a bottom portion thereof.

Abstract translation: 提供一种用于金属喷射单元的喷嘴结构，通过精确地设定熔融金属的排放条件，精确而平稳地喷射熔融金属。 金属喷射单元包括具有喷嘴（15）的熔炉（10）和具有将熔融金属推向喷嘴的柱塞（21）的致动器（20）。 喷嘴具有容纳柱塞的柱塞移动部件，形成在柱塞移动部件的底部的中心的熔融金属挤压部以及形成在熔融金属挤压部的底部的中心的孔口（18）。 柱塞具有从其底部突出的排出压力部。

公开(公告)号：KR100735115B1

公开(公告)日：2007-07-06

申请号：KR1020060037765

申请日：2006-04-26

Applicant: 한국기계연구원

Inventor： 이택민 ,  김동수 ,  김광영 ,  강태구 ,  양정순 ,  최병오 ,  조정대 ,  윤소남 ,  함영복 ,  김충환

IPC: B22D23/00

Abstract: A metal-jet unit is provided to accurately control discharge of molten metal by accurately adjusting a gap between a plunger and an orifice of a nozzle, and an internal pressure of a melting furnace, and improve molding accuracy and completeness of a three-dimensional optional shaped body by accurately controlling discharge of the molten metal. A metal-jet unit(1) comprises: a melting furnace(10) which produces molten metal, and has a nozzle(17) formed on a lower portion thereof; a material feeding part(20) for feeding a metal powder material into the melting furnace; an actuator(30) having a plunger(31) for pressing the molten metal to the nozzle; an oscillation part for finely oscillating the actuator; a gap adjusting unit(41) for adjusting a gap between the plunger and the nozzle; and a pressure adjusting unit for maintaining an internal pressure of the melting furnace to a preset pressure, wherein the nozzle includes a plunger moving part in which the plunger is vertically slidingly received, a molten metal pressing part formed in the form of a downward step height on the bottom center of the plunger moving part, and an orifice(18) formed on the bottom center of the molten metal pressing part such that the orifice faces the outside, and wherein the plunger has a discharge pressing part which is formed on a lower part thereof and projected in a step height shape corresponding to the molten metal pressing part and the orifice, and of which a lower portion is formed as a plane.

Abstract translation: 提供一种金属喷射单元，通过精确调节柱塞和喷嘴的孔口之间的间隙以及熔化炉的内部压力来精确地控制熔融金属的排出，并且提高三维可选的成型精度和完整性 通过精确地控制熔融金属的排出， 一种金属喷射装置（1），包括：产生熔融金属的熔化炉（10），其下部形成有喷嘴（17） 用于将金属粉末材料供给到熔化炉中的材料供给部件（20） 致动器（30），其具有用于将熔融金属挤压到喷嘴的柱塞（31） 振荡部分，用于使致动器微振荡; 间隙调节单元（41），用于调节柱塞和喷嘴之间的间隙; 以及压力调节单元，其用于将所述熔化炉的内部压力保持在预定压力，其中，所述喷嘴包括：活塞移动部，所述活塞被垂直滑动地容纳在所述活塞移动部中;熔融金属按压部，所述熔融金属按压部形成为向下台阶高度 在所述柱塞移动部分的底部中心上，以及形成在所述熔融金属按压部分的底部中心上的孔口（18），使得所述孔口面向外部，并且其中，所述柱塞具有排出按压部分，所述排出按压部分形成在下部 并且以与熔融金属压制部和孔对应的台阶高度形状突出，并且其下部形成为平面。

公开(公告)号：KR100729838B1

公开(公告)日：2007-06-18

申请号：KR1020060027458

申请日：2006-03-27

Applicant: 한국기계연구원

Inventor： 이택민 ,  김동수 ,  최병오 ,  강태구 ,  양정순

IPC: H05K3/40 ,  H05K3/10

Abstract: A via hole conducting system of a circuit board and a conducting method thereof are provided to conduct both planes of the circuit board by performing charging after stacking a conductive melt metal to a via hole of the circuit board using a metal jet unit. A circuit board(10) having a via hole is placed and aligned on a stage apparatus(20). An image acquisition unit(30) detects the position of the circuit board by photographing the circuit board aligned on the stage apparatus. A metal jet unit(40) charges the via hole by dropping drops of a conductive melt metal to the via hole on the circuit board continuously. A computer(60) is connected to the stage apparatus, the image acquisition unit and the metal jet unit, and controls the stage apparatus, the image acquisition unit and the metal jet unit.

Abstract translation: 提供一种电路板的通孔导电系统及其导电方法，以通过使用金属喷射单元将导电熔融金属堆叠到电路板的通孔之后进行充电来导电该电路板的两个平面。 具有通孔的电路板（10）被放置并对齐在台设备（20）上。 图像获取单元（30）通过拍摄排列在台装置上的电路板来检测电路板的位置。 金属喷射单元（40）通过将导电熔融金属液滴连续滴落到电路板上的通孔中来对通孔进行充电。 计算机（60）连接到台装置，图像获取单元和金属喷射单元，并且控制台装置，图像获取单元和金属喷射单元。

公开(公告)号：KR100715448B1

公开(公告)日：2007-05-07

申请号：KR1020060037751

申请日：2006-04-26

Applicant: 한국기계연구원

Inventor： 김동수 ,  강태구 ,  이택민 ,  양정순 ,  조정대 ,  신동윤 ,  김충환

IPC: B41J2/055 ,  B41J29/393 ,  B41J2/07

Abstract: 본 발명은, 잉크젯 유닛의 용융로 내부 압력을 소정의 설정압력으로 유지시키는 잉크젯 유닛의 압력조절장치에 관한 것으로서, 피스톤 왕복 운동에 의해 상기 용융로 내부의 압력을 소정의 압력으로 유지시키는 공압실린더와, 상기 피스톤을 왕복이동시키는 서보모터를 갖는 압력조절수단과; 상기 용융로 내부의 압력을 감지하는 압력감지기와; 상기 압력감지기에서 감지된 압력값에 기초하여 상기 용융로 내부의 압력이 미리 설정된 소정의 압력으로 유지되도록 상기 서보모터의 구동을 제어하는 제어부를 포함하는 것을 특징으로 한다.
이에 의하여, 용융로 내부의 압력을 정밀하게 제어함으로써, 3차원 임의형상물의 성형 정밀도 및 완성도를 향상시킬 수 있는 잉크젯 유닛의 압력조절장치가 제공된다.
잉크젯, 용융금속, 용융로, 압력, 조절

Abstract translation: 本发明涉及一种炉在喷墨单元装置的压力控制在喷墨组件的内部压力维持在预定的设定压力，并通过活塞往复运动的气动缸，以保持炉内的压力为规定的压力，则 具有用于使活塞往复运动的伺服马达的压力调节装置; 一个压力传感器，用于检测熔炉内的压力; 以及用于控制伺服电动机的驱动的控制器，以便基于由压力传感器检测到的压力值将熔化炉内部的压力保持在预设压力。