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강현규(Hyun-Kyoo Kang),성창엽(Chang-Youp Seong),신기현(Kee-Hyun Shin) 한국정밀공학회 2006 한국정밀공학회 학술발표대회 논문집 Vol.2006 No.5월
Dancer systems are most widely used mechanism for attenuation of tension disturbances. Lately, demands for 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-toroll 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.
강현규(Hyun-Kyoo Kang),김정인(Jung-In Kim),신기현(Kee-Hyun Shin) 한국정밀공학회 2006 한국정밀공학회 학술발표대회 논문집 Vol.2006 No.5월
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 for 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.
강현규(Hyun-Kyoo Kang),성창엽(Chang-Youp Seong),신기현(Kee-Hyun Shin) 대한기계학회 2006 대한기계학회 춘추학술대회 Vol.2006 No.6
Dancer systems are typical equipment for attenuation of tension disturbances. Lately, demands for 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 an effective method for productivity. A constant tension level in the span before the first printing cylinder is the key of high speed, high quality printing. This paper presents a modeling of dancer systems derived from a tension model and simulation results shows tension disturbances are reduced effectively. Root locus method is used to check the stability of feedback control of dancer systems.
강현규(Hyun-Kyoo Kang),신기현(Kee-Hyun Shin),김상철(Sang-Chul Kim) 대한기계학회 2009 大韓機械學會論文集A Vol.33 No.5
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.
김정인(J. I. Kim),강현규(H. K. Kang),신기현(K. H. Shin) 한국정밀공학회 2006 한국정밀공학회 학술발표대회 논문집 Vol.2006 No.5월
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.