DEP0001217BA - Method for applying a rayon thread to a pair of rotating, mutually inclined rollers - Google Patents

Description

F ^t -B 69286 * 11/20/50

Patent attorneys,.

SSpl-In ₀ . A.Bohr ör * F / Hx »20.Scftr.1950

Dr. Η. Fincke

Berfin-LieWerfelde-West
^ reivraldauer Weq 28

14132 Gases 5

ρ 1217 VII / a9a p

sur patent application of Fiisia listrafil Limited, Seison _t Lancester _t Valley iHlls, England.

Method for applying a thread of unataeide to a pair of rotating, mutually inclined rollers.

The priority of the registration in Great Britain of 17 December 1946 has been claimed.

The JSrfiadiaisg looks at; sx £ © sum in method Au £ O-Ringen a Knnstseidefadens a pair of circumferential, mutually inclined rollers in the manufacture and finishing of rayon fibers in continuous. "irbeitsgang, wherein the kosotaende from the spinneret thread about the pair of mutually inclined rollers in Pona of helical turns is performed, while the bath is run over these rollers, this coagulation, washing, desulphurisation, hardening, drying and similar treatments under / wo rf s.

The Walsen used in such processes run on skins that are inclined towards one another or can be adjusted to one another are,! • At least one roller of the pair is driven. at

conscience. Devices of this type are supported by the shafts only at one end; in these cases it has proven to be useful to provide the free ends with a flexible, in certain cases adjustable spacer to prevent interference in to prevent the even running of the thread by the inclination of the two waves to each other. Bs is convenient, the waves to be stored at both ends, but difficulties arise when starting the working process or after heating of the thread.

Regardless of whether the shafts are supported at one or both ends, it is necessary that this is the case at every start-up The free end of the thread is guided by hand over the guides and rollers to the winding device. For this reason Sdissen all parts of the machine are accessible for hand-piecing the thread; a lot of space is required here.

It has now been found that these difficulties can be substantially avoided and considerable savings in tree are achieved by providing a hat or flange at the initial portion of one or both of the rollers of the pair to keep a bing of pliable material in place to keep. During piecing, a lump of the coagulated material, which collects near the spinneret at the start of spinning in the soagulation bath, is fed via the guide shaken to the first roller, where it is clamped or clamped under the flexible ring, between this hanging and the 4-way surface of the orphan around the flexible bing. It is useful to place this lump around the bing in order to ensure good adhesion to the roller. The Sing takes the thread several times around the pairs of rollers without it being continued on the rollers by being held in position by the JSiut or by the flange. In this way it is achieved that a new King, this time consisting of a number of turns of the thread is wound up ι due to the plastic state of the thread in this

At the level of the movement, the different turns of the thread again form a hinge that can expand as desired can own. When this iadenring has assumed a desired strength, it will move out of the groove or over the splash onto the rolled smooth side of the roller; now begins the migration of the thread on the pair of rollers, with the thread from the coagulation bath is deducted. The original ring made of the flexible material remains in its position in the JSut or behind the flange. When the infeed, newly formed from thread windings, has run its course over the length of the pair of rollers »it is simply cut open or torn open and removed from the rollers. That of him Entrained thread is then transferred to the Auf / wiekelvorriehtimg or it is fed to further rollers or guides.

For the original input on the rollers, it is useful to find a rubber or other flexible material or

any other flexible material, such as a moist string, application.

The method forming the subject of the invention is particularly expedient in the continuous spinning of silk threads in a tailor-made spinning method in which the threads are guided in helical turns over a pair of inclined rollers. If an already coagulated thread on one of the described pairs of rollers is subjected to any kind of treatment, it is advisable to attach the thread to the inlet made of flexible material; in this case, when the new entry is rolled out of the groove from a plurality of turns of the thread, the attachment to the original ring is interrupted or dur © hsehnitteii _e

The original ring made of flexible material is arranged close to the initial part of the roller pairs so as not to affect the feed of the thread to the rollers after the start of work.

The rollers, which are inclined towards one another, can be cylindrical or conical, provided with stiffeners or otherwise designed .

Claims (2)

Claims% ~ % «. ) drive to apply a rayon thread to a pair of revolving, mutually inclined rollers, around which the pad runs in consecutive helical turns, characterized by the following work steps *. a) Attachment of the bath to a sing of flexible material ^ which is held in place near the beginning part of the pair of rollers by a groove or a flange on one or both rollers , for the purpose of forming a ring consisting of a number of turns of thread, b) Unrolling this Sadenring out of the groove or over the puddle on the smooth part of the rollers, whereby the thread ring is separated from the continuously remaining in its position Sing made of flexible material and the thread ring advances along the pair of rollers, taking the thread with it, o) Removal or cutting of the thread ring from the rollers, d) Feeding the thread to the winding device or further rollers or guides inclined to one another. 2.) The method according to claim 1, characterized in that the material of the flexible Hinges consists of Qumai or a rubber-like material or of a moist cord .