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    • 1. 发明公开
    • 원형 및 비원형의 빌렛구조인 형강을 드로잉하기 위한가압드로잉공구
    • 用于绘制圆形和非圆形金字形金属片的压力绘图工具将被形成
    • KR1020020093141A
    • 2002-12-12
    • KR1020027014951
    • 2002-03-13
    • 에코포름 움포름테크닉 게엠베하레이베니츠-인스티투트 푸어 페스트코르페르 운트 베르크스토프포르숭 드레스덴 에.파우
    • 아이케마이어,요르그바인홀트,하리
    • B21C3/10
    • B21C3/10B21C3/04
    • 본발명은원형및 비원형의빌렛구조인형강을드로잉하기위한가압드로잉공구에관련되고, 상기공구에의해우수한윤활상태, 매우긴 공구수명및 높은제품품질이제공될수 있다. 본발명의가압드로잉공구에의하면, 공구의드로잉코아(drawing core)가오직단일부품으로구성되고, 드로잉방향(z)으로볼 때, 드로잉코아의드로잉구멍은깔때기형상의유입영역(A), 압력증가영역(B), 입구영역(C), 성형영역(D) 안내길이(E) 및유출깔때기(F)를가지며, 간격폭(S)이일정하거나거의일정하게유지되고성형되어야하는유입재료를가진간격이압력증가영역(B)에구성된다. 입구영역(C)이식들에의해구해진다. tan α = s/ l 및 l = n*d 단 n= 0.003 내지 0.5, α = 드로잉구멍각도의절반, l =입구영역(C)의길이및 d=성형되어야하는유입재료(U)의두께이다. 예를들어, 선, 로드(ROD) 및프로파일(profile)을드로잉하기위해상기가압드로잉공구가이용될수 있다.
    • 本发明涉及一种用于拉伸圆形和非圆形坯料金属坯料的压力拉伸工具,其将被成形,其可以获得优异的润滑条件,非常长的可使用的工具寿命和高的产品质量。 本发明的压力拉伸工具的特征在于,工具的拉拔芯只由一块构成,并且当从拉丝方向(Z)观察时,拉拔芯的拉出孔具有漏斗形进入区( A),压力积聚区(B),入口区域(C),成形区域(D),引导长度(E)和出口漏斗(F),由此压力积聚区 B)与要成形的进料坯料形成间隙,其间隙宽度保持恒定或接近恒定。 入口区域(C)由等式定义:tanα= s / l和l = n×d0,其中n = 0.003至0.5; α=孔的一半孔径角; l =进入区域(C)的长度, d0 =要成形的进料坯料(U)的厚度。 压力拉伸工具可以用于例如拉丝,棒和型材。
    • 4. 发明授权
    • 인발장치
    • 绘图仪器
    • KR100821876B1
    • 2008-04-16
    • KR1020070047625
    • 2007-05-16
    • 주식회사 세아에프에스
    • 유병희
    • B21C1/22B21C3/02B21C3/10B21C3/00
    • A drawing apparatus is provided to prevent loss of the drawing oil by installing a back-pressure feeder, thereby preventing drawing oil from consistently leaking into a drawn pipe, draw a pipe continuously by preventing consistent leakage of the drawing oil, and improve production efficiency by preventing loss of the drawing oil. In a drawing apparatus for passing a pipe(100) having drawing oil supplied onto inner and outer parts thereof between a dies(30) and a plug to change diameter and thickness of the pipe, the drawing apparatus comprises a back-pressure feeder(50) for feeding back pressure into the pipe that has been drawn through the dies and plug in a direction opposite to the drawing direction of the pipe to prevent loss of the drawing oil due to consistent leakage of the drawing oil by providing an inner part of the pipe with a pressure corresponding to pressure of the drawing oil that has been supplied into the pipe, thereby equilibrating the pressure within the pipe. The back-pressure feeder includes a pressure generating part(70) for generating pressure, and a pressure feeding part(60) connected to one end of the pipe to feed the pressure generated by the pressure generating part into the pipe. A portion of the pressure feeding part is axially formed on an inner side of a drawing drum(40) that is rotated such that a pipe drawn through the dies is wound on the drawing drum. The drawing drum includes a rotary joint(45) which is installed on a lower part of the drawing drum and communicates with the pressure feeding part such that back pressure is consistently fed through the pressure feeding part even during the rotation of the drawing drum.
    • 提供一种拉伸装置,以通过安装背压给料器来防止拉拔油的损失,从而防止拉拔油一直泄漏到拉伸管中,通过防止拉伸油的一致渗漏连续拉伸管,并且通过 防止拉拔油的损失。 在将具有供给到其内部和外部的抽吸油的管道(100)通过模具(30)和塞子之间以改变管道的直径和厚度的拉拔装置中,拉拔装置包括背压进料器(50) ),用于将压力反馈到已经通过模具拉出的管中,并沿与管的拉拔方向相反的方向插塞,以防止由于拉丝油的一致性泄漏而导致的拉拔油的损失, 管道具有对应于已经供应到管道中的拉拔油的压力的压力,从而平衡管道内的压力。 背压进料器包括用于产生压力的压力产生部分(70)和连接到管的一端的压力供给部分(60),以将由压力产生部分产生的压力供给到管中。 压力供给部的一部分轴向地形成在拉动滚筒(40)的内侧,该拉动滚筒旋转,使得通过模具拉出的管被卷绕在拉伸滚筒上。 牵引鼓包括旋转接头(45),该旋转接头(45)安装在牵引鼓的下部并与压力供给部分连通,使得即使在牵引滚筒旋转期间,背压一贯地通过加压部供给。