| 摘要 |
<p>A cup vessel (1), to he applied upstream of plotter (3), where roller (15) made of the material to be treated is kept resting on two rollers without having to insert any support bar within the core of the roller itself, is equipped with a first support roller (5), neutral, and with a second support roller (7), rotatingly controlled by an adequate rotator (9), with driving bars (11), parallel to the first and second rollers (5) and (7), with an input bar (17), parallel to driving bars (11), and with a rectangular floating frame (21), secured with its rotation axis (23) to the vessel (1) walls and resting with its free bar (25) on web (13) unwinding from roller (15) and coming to plotter (3); said floating frame (21), connected to at least two micro-switch sensors (27), making second roller (7), or the feeding roller, move or stop. <IMAGE></p> |
