• Title/Summary/Keyword: 컨버팅

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Modeling and Analysis of a Pendulum Dancer in Industrial Converting Machines (산업용 컨버팅 머신의 펜듈럼 덴서 모델링 및 해석)

  • Kang, Hyun-Kyoo;Shin, Kee-Hyun;Kim, Sang-Chul
    • Transactions of the Korean Society of Mechanical Engineers A
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    • v.33 no.5
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    • pp.482-488
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    • 2009
  • Dancer system is typically used equipment for attenuation of tension disturbances. In industrial converting machines, a composite type of dancer system is applied which is mixture of active and passive dancer. It includes feedback position control loop of roll with pendulum dancer and its characteristics is different from passive and active one. In this paper, a mathematical model of the pendulum dancer was derived including PI position feedback controller and it was analyzed by using a pole-zero map and bode plot under various conditions. It was found out that velocity, length of span and inertia were associated with the performance of regulation. It was suggested that the length of upstream span should be greater than that of the downstream and the inertia should be smaller for improvement of the performance. The results can be used for design guidelines of the industrial dancer system.

Register Control on Compensator Roll type Converting Machines (보상롤 타입 컨버팅 머신의 레지스터 제어)

  • Kang Hyun-Kyoo;Kim Jung-In;Shin Kee-Hyun
    • Proceedings of the Korean Society of Precision Engineering Conference
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    • 2006.05a
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    • pp.323-324
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    • 2006
  • This paper presents dynamics of register error on a compensator roll type converting machine. Though a register control is an important aspect of a converting machine, it has not been taken into account as a main subject. Lately, demands for high speed converting machines over 500mpm(m/min) are raising but domestic converting industries can not come up with the high speed machines because capacities fur designing of the converting machine is restricted lower than 300mpm. Moreover register control is the key to product flexible displays through roll-to-roll systems. In this paper, a compensator roll type register controller is analyzed using mathematical model of register error. A case study for reducing transient register errors is discussed.

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Dynamics of Register error on Compensator Roll type Converting Machines (보상롤 타입 컨버팅 머신의 레지스터 에러 동특성 해석)

  • Kim J.I.;Kang H.K.;Shin K.H.
    • Proceedings of the Korean Society of Precision Engineering Conference
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    • 2006.05a
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    • pp.325-326
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    • 2006
  • Recently, it is concentrated on productivity improvement in high speed operation by converting industries. Register error is becoming the one of the most issued problem. Moreover register control is the key to product flexible displays through roll-to-roll systems. This paper presents a derivation of register error modeling. And the dynamics of register error is simulated under various conditions. Register error is affected by both roll velocity and tension between the front and back span. And dynamics of register error is to be an interaction in succeeding spans.

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Dynamics of Dancer Systems in Converting Machines (컨버팅 머신의 덴서 동특성 해석)

  • Kang Hyun-Kyoo;Seong Chang-Youp;Shin Kee-Hyun
    • Proceedings of the Korean Society of Precision Engineering Conference
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    • 2006.05a
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    • pp.65-66
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    • 2006
  • Dancer systems are most widely used mechanism for attenuation of tension disturbances. Lately, demands fur high speed converting machines over 500mpm(m/min) are raising but domestic converting industries can not come up with the machines because capacities for a designing of the converting machine are restricted lower than 300mpm. Moreover roll-to-roll is attracted flexible display manufacturer's attention as a effective method for productivity. A constant tension level in the span before the first printing cylinder is the key of high speed quality printing. This paper presents a modeling and simulations of dancer systems on converting machines.

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무선 인터넷 정보기술 분석 및 동향

  • 우훈식
    • Proceedings of the CALSEC Conference
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    • 2001.08a
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    • pp.401-410
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    • 2001
  • 개요 유무선 인터넷 망 연동 무선에서의 ISP (MISP: Mobile ISP) 의미 이동통신사 과점에서 경쟁 체제로 (nTop, magicN, ez-i) MIDC 사업자 출현 (KT, 데이콤, 하나로) WAP, 컨텐트 컨버팅, 과금 서비스 문제점 접속 지점 (IWF, G/W) 접속 대가 접속 대상(중략)

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