Textiles: spinning – twisting – and twining – Apparatus and processes – Covering or wrapping
Patent
1982-11-23
1984-09-11
Petrakes, John
Textiles: spinning, twisting, and twining
Apparatus and processes
Covering or wrapping
57 6, 57 17, 57 19, 57 22, 57261, B65H 8108
Patent
active
044702485
DESCRIPTION:
BRIEF SUMMARY
FIELD OF THE INVENTION
The present invention relates to an arrangement for winding yarn, strip-material or the like from a supply roll onto a bunch of wires or the like fed through the center hole of a supply roll by means of a flyer rotating around the bunch of wires for automatically starting winding the yarn, strip-material or the like from a new supply roll, when the yarn, the strip-material or the like on the first supply roll is either used up or broken, the new supply roll also being disposed in such a manner that the bunch of wires is fed through the center hole of the new supply roll.
BACKGROUND
To keep a bunch of wires together it is known within the cable art to helically apply either yarn or strip-material around the bunch of wires. For this purpose most often a so called flyer is used having a roll placed around the bunch of wires. The yarn is fastened through the flyer onto the bunch of wires and while the bunch of wires is pulled forward the flyer starts to rotate, whereby the yarn will be wound helically around the bunch of wires with a pitch determined by the rotary speed of the flyer and the linear feeding speed of the bunch of wires.
When the yarn is used up on the roll the forward feeding of the bunch of wires as well as the rotation of the flyer are stopped. This is most often done automatically. Then, the empty roll is removed from the flyer by an operator whereupon a new roll of yarn through which the bunch of wires has been threaded in advance, is placed in the flyer. After that, the free end of the yarn on the new roll is connected with the end of the yarn from the old roll, whereupon the feeding of the bunch of wires can start again and the flyer starts to rotate.
Also in those cases when the yarn for some reason breaks, the feeding of the bunch of wires is stopped as well as the rotation of the flyer and the operator has to perform a splicing operation before the bunch of wires is fed forward again and the flyer starts to rotate.
SUMMARY OF THE INVENTION
An object of the present invention is to provide an arrangement that makes it possible to automatically start unwinding the new supply roll when the material on the old supply roll is either used up or broken.
By this arrangement, it would be possible to increase the output considerably due to the fact that the installation could be left unmanned for example at night.
This is achieved in that the arrangement mentioned by way of introduction has obtained the characterizing features indicated in the claims.
BRIEF DESCRIPTION OF THE DRAWING
The invention will be described in greater detail below with reference to the accompanying drawing, the single FIGURE of which shows an embodiment of the arrangement according to the invention.
PREFERRED EMBODIMENT
The FIGURE shows an installation for winding yarn onto an assembly or bunch of wires 1 fed forwardly with a predetermined speed, which installation in a manner known per se comprises a roll of yarn 2, through the center hole of which the bunch of wires 1 is fed forwardly and which, in a manner not shown, is journalled to rotate around the bunch of wires. To apply the yarn 3 from the roll 2 onto the bunch of wires 1 there is a so called yarn flyer 4, indicated by means of dashed and dotted lines and which through a driving belt 5 can be caused to rotate around the bunch of wires 1 and the yarn roll 2 by means of a driving motor 6. The yarn roll 2 will rotate due to the fact that the yarn 3 is unwound from the roll by means of the flyer 4. To obtain a uniform unwinding of the yarn 3 from the roll 2 it is necessary, however, to slow the roll down in a manner not shown. When the yarn on the roll 2 is used up or broken, i.e. when the roll 2 stops rotating, this will be sensed by means of a monitor 7 which in the shown embodiment has an axle 8, driven by a belt 9 placed around a pulley (not shown), which in turn is fixed to the rotation axis of the yarn roll 2. The monitor 7, for example, can be adapted to emit pulses, the pulse repetition frequency of which corresponds to the r
REFERENCES:
patent: 2118136 (1938-05-01), Bardsley
patent: 3879924 (1975-04-01), Dahmen
patent: 4117654 (1978-10-01), Petrov
patent: 4135353 (1979-01-01), Eisenberg
patent: 4143506 (1979-03-01), Pierce et al.
patent: 4170101 (1979-10-01), Bock
patent: 4170864 (1979-10-01), Beyerl et al.
patent: 4322941 (1982-04-01), Sarracino
Petrakes John
Telefonaktiebolaget L M Ericsson
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