Textiles: knitting – Feeding – Traversing guides – straight machine
Patent
1995-12-04
1997-06-24
Calvert, John J.
Textiles: knitting
Feeding
Traversing guides, straight machine
66 64, 66127, D04B 1550
Patent
active
056408587
DESCRIPTION:
BRIEF SUMMARY
DESCRIPTION
The invention relates to a textile machine including at least one arrangement, which is movable over the processing area of the machine, for supplying at least one thread to the spot at which the thread is to be processed.
BACKGROUND OF THE INVENTION
Textile machines of this type are generally known and are described for example, in the context of a flat bed knitting machine, in DE-C 36 41 182. With these textile machines, there is a difficulty in processing the thread at a constant tension, for example when knitting up or when inserting it as the final thread, in such a way that uniform, optically appealing textile goods can be produced, especially where certain requirements are desired of the product e.g. uniform stretching properties. If the tension is not even, then accordingly fewer or more of the threads will be processed in one area of the textile article whereby irregularities will occur in the textile goods so that the properties of the product such as its structure, the occurance of stretching or the impression it gives as regards colour will not be uniform. This disadvantage occurs especially when processing elasticated or rubberised yarns because, to a certain extent, differing quantities of elasticated yarn are processed due to a variation in the tension of, or to a different degree of tugging on, the elasticated yarn. A variation in the tension of the thread being processed occurs, in particular, with flat bed knitting machines, this being due to the cam carriage, and thus the yarn carrier boxes including the yarn guides and the feeder wheels, being moved first in the one and then in the other direction whereby the tugging on the thread being processed varies considerably.
SUMMARY OF THE INVENTION
Hence, the object of the invention is to develop a textile machine with which, in a simple manner, the production of uniform textile goods can be guaranteed especially when processing elasticated yarns.
The posed object is achieved in accordance with the invention by means of a device which is movable over the processing area of the machine for placing the thread in readiness. Thus, the thread which is to be processed is placed in readiness directly at the spot where it is to be processed without there needing to be any long paths for the thread, on which paths the thread may experience differing amounts of tugging. By virture of the feature in accordance with the invention, of moving the thread readying device over the processing area of the machine, a uniform tugging on the thread which is to be processed is always positively ensured so that the textile goods being produced can be produced in a uniform manner as regards the properties of the product, even when elasticated threads or yarns are being processed.
In accordance with an especially advantageous embodiment of the invention, the thread readying device comprises a thread tensioning device. Due to this, a constant tension is applied to the thread which is being processed. Alternatively, or, in addition to the thread tensioning device, the thread readying device is preferably provided with a thread braking device which supports the function of always imparting a constant tension to the thread. The use of a feed wheel mechanism is very advantageous in this case. The way in which the thread is fed out is thereby regulated in accordance with the magnitude of the tugging force on, or, the tension in the thread which is being processed so that a constant thread tension is ensured.
In accordance with an especially advantageous embodiment of the invention, the textile machine is a flat bed knitting machine having needle beds and at least one carriage that is movable over the needle beds wherein the arrangement for supplying at least one thread is a yarn carrier box which is held on and guided by at least one yarn carrier bar. As was already mentioned hereinabove, it is difficult, especially in the case of textile machines, for example, in the case of flat bed knitting machines, in which the arrangement for supplying a thread, for
REFERENCES:
patent: 2710529 (1955-06-01), Piltz
patent: 4025865 (1977-05-01), Zamarco
patent: 4700553 (1987-10-01), Goller et al.
patent: 4720985 (1988-01-01), Goller et al.
patent: 4840046 (1989-06-01), Goller et al.
patent: 5072602 (1991-12-01), Naumann
Komenda Martin
Schimko Reinhold
Calvert John J.
Universal Maschinenfabrik Dr. Rudolf Schieber GmbH & Co. KG
LandOfFree
Textile machine with movable thread readying device does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Textile machine with movable thread readying device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Textile machine with movable thread readying device will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-144416