Winding – tensioning – or guiding – Coil holder or support – Spool or core
Patent
1987-09-04
1989-04-04
Gilreath, Stanley N.
Winding, tensioning, or guiding
Coil holder or support
Spool or core
242 43A, 242 431, 242158B, B65H 5420, B65H 5432
Patent
active
048178799
DESCRIPTION:
BRIEF SUMMARY
TECHNICAL FIELD
The invention is directed to a spooling machine for simultaneously spooling at least two threads on the same quantity of winding places, which are arranged adjacent to one another in a row, by means of a so-called belt-type traversing device which comprises the following characteristic features: line in opposite directions and are arranged adjacent to one another, are equipped with uniformly spaced carriers; the individual traversing areas and are suitable for passing a thread from one carrier to a carrier approaching in the opposite direction, are arranged adjacent to the intermediate portions of the belt in accordance with the quantity of winding places.
Prior Art
In order to spool at extremely high thread speeds--e.g. 6,000 m/min.--spooling machines are known in which the thread is guided in reciprocating motion by means of carriers which are fastened on two intermediate portions of the band or belt which are moved in opposite directions and are arranged adjacent to one another. The alternating movement of the thread is not effected by means of a single reciprocated thread guide, as in conventional traversing devices, but, rather, in that the carriers, which are moved in opposite directions, alternately grasp and guide the threads. Since the carriers are neither accelerated nor decelerated at the reversing points of the thread, the influence of the inert mass of the thread guide members is completely eliminated during the thread reversal.
The manner of operation of this known belt-type traversing device is known, e.g., from DE-OS No. 15 35 091. If one follows the movement of a carrier fastened on one intermediate portion of the belt, which carrier is met by a carrier of the other intermediate portion of the belt at a determined point, it can easily be seen that the distance between the meeting point with the next carrier of the other intermediate portion of the belt and the first meeting point is half as great as the distance between two adjacent carriers of an intermediate belt portion. This is a result of the intermediate portions of the belt moving in opposite directions at the same speed. Since the thread is fed from a carrier of one intermediate portion of the belt to a carrier of the other intermediate portion of the belt at a meeting point, the traversing stroke of the thread is equal to the distance between two meeting points. The feed is effected by means of a suitable shaping of the carriers and is facilitated by means of stationary deflectors which are arranged at the meeting points.
It also follows from the indicated text and the U.S. Pat. Nos. 22 38 128 and DE-OS 26 22 243 that the intermediate portions of the belt can extend over the traversing areas of a plurality of winding places which are arranged adjacent to one another. However, a more detailed description of the construction and manner of operation of belt-type traversing devices for the simultaneous spooling of a plurality of threads does not follow from the previously cited texts.
A traversing device is indicated schematically in DE-OS No. 35 05 188 in which the distance over which the intermediate portions of the belt run adjacent to one another amounts to a multiple of the distance between two carriers. Therefore, a plurality of meeting points are located along this distance so as to be uniformly spaced. This is made use of in order that a single pair of intermediate belt portions serves a plurality--four in the present example--of winding places. According to the teaching of this text, the distance between two carriers is equal to twice the traversing stroke of the thread; obviously, it is assumed as self-evident that the traversing stroke is equal to the distance between two meeting points. This results in a problem: For obvious reasons, it is not possible to wind adjacent spools in such a way that the end faces which face one another lie very close to one another. But if a spacing between two spools is urgently necessary, this spacing must be equal to the spacing between two meeting points or must be a mul
REFERENCES:
patent: 2238128 (1941-04-01), Nydegger
patent: 4723722 (1988-02-01), Vehling
Gilreath Stanley N.
Neumuenstersche Maschinen-und Apparatebau GmbH (Neumag)
Striker Michael J.
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