English Abstract

Latest Safety Device for Open Mill

Yasuhiko TAKAGI
KANSAI ROLL Co., LTD., Japan, Taisho-ku, Osaka, Japan
Nippon Gomu Kyokaishi,(2010),83(8),238-242 General Review in Japanese

In plastic and rubber industries, different sizes of open mill are used. In fact, biggest drawback in the use of open mill is that its operation is dangerous and its operating environment is bad. In this review, we introduce a latest safety device for mixing mill.
Mechanical breaks and electrical breaks are generally known as safety devices for mixing mill. Especially mechanical breaks are widely used and sold recently. It’s necessary to take an official examination when we use any breaks other than the Fukuda type one. There is a regulation that switches for safety device like lever switches must be attached to the mill. Though manufacturers have made efforts to improve safety, industrial accidents happen occasionally.
MK-break is a safety device spread in the market recently. It has LED sensors which detect only the wrist wearing a reflector. This is a patented product in the United States, Europe and Japan. In Japan, only one company has exclusive rights to manufacture and sell this product.
If the wrist with a reflector gets into dangerous area, sensors detect it and an emergency break works. It’s also a good system that doesn’t allow workers to start the mill without confirming that all sensors work normally. It takes one day to install this break to any kind of mill.

Keywords: Mechanical Break, MK-break , LED Sensor , Emergency Break