DE3002981A1

DE3002981A1 - Textile thread brake - with soft lined pendulum roll in groove of thread brake

Info

Publication number: DE3002981A1
Application number: DE19803002981
Authority: DE
Inventors: Erich 7993 Kressbronn Brosa
Original assignee: Individual
Current assignee: Individual
Priority date: 1980-01-29
Filing date: 1980-01-29
Publication date: 1981-07-30

Abstract

The Parent Patent 2939375 described a revolving pigtail type of brake for threads. This has now been replaced by rounding off the base of the groove in the thread brake roller and by allowing a thread guide roll, fitted with a soft lining, to roll along the groove with a suitably shaped profile. This guide roll is mounted on a hinged lever so that it can move like a pendulum and guide the thread free from sliding friction. This is an effective way of eliminating the formation of fluff on fine-gauge natural fibres.

Description

Fadenbremse Thread brake

Die Erfindung hat den Zweck den Einlauf von sehr dünnen, z.B. Naturfäden, in rotierende Bremsvorrichtungen, so zu bewerkstelligen, daß keine Flusenbildung entsteht.The invention has the purpose of the inlet of very thin, e.g. natural threads, in rotating braking devices, to be done so that no lint build-up arises.

Das wird dadurch erreicht, daß an Stelle von reibungsbehafteten Führungsteilen, wie sogenannte Sauschwänze, die insbesondere bei sehr fusseligen Naturfäden erheblichen Abrieb erzeugen, eine den Faden A leicht andrückende, keine Bremswirkung erzeugende Fadenführungsrolle 1 verwendet wird, die dem Rillenprofil 2 des Bremsrotors 3 angepaßt ist. Sie ist also nur bei sehr feinen Garnen, speziell aus Naturfasern, durch Ausklinken ihrer Halterung 4 hinzuzuschalten. Die Halterung 4 der Fadenführungsrolle 1 in ihrer Arbeitsstellung ist durch die Kraft eines Magneten 5 gesichert, die sehr konstant ist. Die Rolle 1 kann eine weiche Lauffläche 6 haben. Die Zugkraft im Fadenteil D entsteht erst bei der letzten Umschlingung des Rotors 3, der in bekannter Weise regulierbar gebremst wird (siehe Patent-Anmeldung P 29 29 183-.6).This is achieved by the fact that instead of friction-prone guide parts, like so-called pig tails, which are particularly significant with very fluffy natural threads Generate abrasion, one which gently presses the thread A, but does not generate any braking effect Yarn guide roller 1 is used, which is adapted to the groove profile 2 of the brake rotor 3 is. So it is only with very fine yarns, especially made of natural fibers, by notching their bracket 4 to be added. The holder 4 of the thread guide roller 1 in their Working position is secured by the force of a magnet 5, which is very constant is. The roller 1 can have a soft running surface 6. The tensile force in the thread part D only arises when the rotor 3 is wrapped around the last time, in a known manner is regulated braked (see patent application P 29 29 183-.6).

Diese Fadenführungsrolle 1 ist an einem pendelnden Hebel 4 ( wie schon in der Patent-Anmeldung P 29 29 183.6 dargestellt) gelagert und wird mittels des Magneten 5 und Ankers 7 in der Arbeitsstellung zum Rotor 3 konstant gehalten und ist wegklappbar. Auf dem gleichen Hebel 4 ist unabhängig von der Fadenführungsrolle 1, die bekannte Nebenrolle 8 gelagert, die den Faden über den Rillenbord 9 in die nächste Rille leitet.This thread guide roller 1 is on an oscillating lever 4 (as already in the patent application P 29 29 183.6) stored and is by means of Magnet 5 and armature 7 kept constant in the working position to the rotor 3 and can be folded away. On the same lever 4 is independent of the thread guide roller 1, the well-known supporting role 8 stored, which the thread over the grooved rim 9 in the next groove leads.

Diese Nebenrolle 8 kann auch, wie in Patent-Anmeldung P 29 29 183.6 angegeben 2 Rillen besitzen, entsprechend der Rillenausführung des Rotors 3.This secondary role 8 can also, as in patent application P 29 29 183.6 indicated have 2 grooves, corresponding to the groove design of the rotor 3.

Die Klinke 9 dient zur Fixierung der Rollenkombination 1 und 8 im ausgeschwenkten Zustand der Halterung 4', wenn nur mit der Nebenrolle 8 gearbeitet wird und die Fäden stark genug sind.The pawl 9 is used to fix the roller combination 1 and 8 in Swiveled-out state of the holder 4 'when only working with the secondary roller 8 and the threads are strong enough.

Claims

Patent claims 1 thread brake according to patent ..... (application P 29 29 183.6) and patent (application P 29 39 375.7), characterized in that imine groove (2) a rotor designed for thread braking (3) has a rounded design Basic profile (lo) in which a thread guide roller provided with a soft layer (1) runs, which runs the incoming thread (A) at the bottom of the rotor track (lo) without sliding friction and can perform oscillating movements.

2 thread brake according to claim 1, characterized in that on the same pendulum arranged holder (4) of the thread guide roller (1) one, with one or two grooves formed secondary roller (8) is attached, which the thread deflection for the following groove.

3 thread brake according to claim 1 and 2, characterized in that the The thread guide roller (1) with its holder (4) is lifted off the rotor (3) and in this Position is held, for example, by a pawl (9).

4 thread brake according to claim 1 to 3, characterized in that the Thread guide roller (1) in the working position by a magnet (5) with armature (7) is being held.