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IJAT Vol.5 No.1 pp. 61-65
doi: 10.20965/ijat.2011.p0061
(2011)

Paper:

Development of a Liquid Packaging Machine Positioning Control on Moving Film

Katsumi Honma* and Shin-ichi Nakajima**

*Yushin Co., Ltd., 964 Yanagawa-Shinden, Sanjo, Niigata 955-0002, Japan

**Niigata Institute of Technology, 1719 Fujihashi, Kashiwazaki, Niigata 945-1195, Japan

Received:
July 29, 2010
Accepted:
November 12, 2010
Published:
January 5, 2011
Keywords:
liquid packaging machine, motion control, phase control method, positioning control
Abstract

A liquid packaging machine produces liquid packaging bags from roll film by cooperatively controlling the vertical seal roller, horizontal seal roller, and cut roller. These rollers are driven separately by servomotors as a multi-axis servo mechanism. Positioning control on the moving film is essential to make bags of accurate size. To achieve accurate positioning without lowering productivity, we propose two control methods. One is a two-step velocity control of the horizontal seal roller. This method enables continuous and high speed production of bags of arbitrary size. The second is phase control, which determines the accuracy of the cutting position on the film according to the sealing position. Phase control changes the rotary phase difference of the horizontal seal roller and the cut roller by adjusting the high feeding velocity of the cut roller, or by adjusting the low feeding velocity of the cut roller. The control system developed was applied to a DANGANV liquid packaging machine.

Cite this article as:
K. Honma and S. Nakajima, “Development of a Liquid Packaging Machine Positioning Control on Moving Film,” Int. J. Automation Technol., Vol.5, No.1, pp. 61-65, 2011.
Data files:
References
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Last updated on Nov. 18, 2019