Device for continuously feeding a web of material from a stock r

Winding – tensioning – or guiding – Coil holder or support – Spool or core

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B65H 1918, B65H 1920

Patent

active

049346210

ABSTRACT:
In a device for continuously feeding a web of material from a stock roll, a conveyor means for conveying the unwinding roll and the remnant roll through the device comprise two parallel essentially U-shaped guide tracks for the rolls. The legs of the U extend in lengthwise direction of the device, such that both loading of a new roll and picking up and discharging of a remnant roll can take place at the front side of the device. For controlling the speed of an unwinding roll two driving belt units are provided which can cooperate with the periphery of the unwinding roll one after another. For running a new roll up to the required peripheral speed for making a splice with an unwinding web and keeping said roll at that speed until the splice is made a core drive is provided which acts upon the shaft of the new roll, and which can work independently of the driving belt units. A new roll can thus be prepared with an adhesive strip over the whole width of the roll, which will result in an uninterrupted splice. The device is further provided with a new web splicing unit.

REFERENCES:
patent: 1828297 (1931-10-01), Schmidt
patent: 2005037 (1935-06-01), Johancen et al.
patent: 2047713 (1936-07-01), Wood
patent: 2638281 (1953-05-01), Tollison et al.
patent: 3309036 (1967-03-01), Anderson
patent: 4132371 (1979-01-01), Byrt
patent: 4165842 (1979-08-01), Mengel
patent: 4673142 (1987-06-01), Keene et al.
patent: 4729522 (1988-03-01), Tafel et al.
patent: 4763851 (1988-08-01), Flament
Research Disclosure, No. 143, 3/1976, pp. 45-46, Abstract No. 14360, "Automatic Loading Unwind Stand for Cutting and Splicing Thermplastic Sheet Material".

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