Textiles: spinning – twisting – and twining – Apparatus and processes – Driving
Patent
1980-06-21
1982-09-14
Petrakes, John
Textiles: spinning, twisting, and twining
Apparatus and processes
Driving
29467, 57 1R, 57129, D01H 710, D01H 1244
Patent
active
043488609
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
The invention relates to a spinning or twisting machine in accordance with the type described in the preamble to claim 1.
Machines of this type serve to spin or twist yarns. It is known to drive each textile spindle of such a machine by means of a separate electromotor assigned to only that spindle. This kind of drive is also called "individual spindle drive". However, it is difficult to center the spindle shaft of the spindle, which is coaxial with the shaft of the rotor, and firmly connected to the rotor shaft, precisely relative to the ring which is pierced thereby and disposed on the spindle rail. This ring, which is also called a spinning or twisting ring, serves to carry a ring rotor which is revolvingly dragged on this ring by the yarn traveling toward the spindle. It is accordingly important that the spindle shaft, in all positions of the ring rail performing stroke movements during operation, should be very well centered with the ring which moves up and down along with the ring rail; otherwise, there is an increased danger of broken threads, and the wear on the rotor is increased and it can even happen that the ring rotor may strike against the yarn winding body which during the wind-up operation is located on a casing placed over the spindle shaft.
OBJECT AND SUMMARY OF THE INVENTION
It is accordingly a principal object of the invention, in a spinning or twisting machine of the type described herein, to create the opportunity to center each spindle shaft precisely, simply, quickly, and uncomplicatedly, and using gauges as needed, relative to the ring pierced thereby and located on the ring rail throughout the maximum stroke of this ring rail.
This object is attained by means of the invention disclosed herein. Because both bearing brackets of the housing of the electromotor are disposed on a spindle rail independently of one another and adjustable in position radially on all sides, the rapid and precise centering of the spindle shaft relative to the ring pierced thereby throughout the maximum stroke height of the ring rail carrying this ring can be accomplished in a structurally simple manner.
Normally, on a ring spinning or ring twisting machine, the textile spindles are disposed in two rows; that is, there is one row on each longitudinal side of the machine. It is also possible, however, that only a single row of spindles may be present. In general, it is sufficient to assign a single spindle rail to each such spindle row and only in special cases to provide a plurality of separate spindle rails. In similar fashion, the rings assigned to one spindle row, which are pierced by the spindle shaft and carry ring rotors, are efficiently disposed on a single ring rail; however, here as well, there may be a plurality of ring rails provided per spindle row.
There are ring rails on which the rings are disposed in such a manner as to be immovable radially, and there are ring rails on which the rings can be secured in a manner which is adjustable in position to a limited extent radially on all sides. It is always desirable that the longitudinal axes of the rings of one ring rail should lie in a single common plane and should be at uniform distances from one another; that is, there should be an exact distribution of spindles. As a result of the invention, it is possible both to center the spindle shafts quickly and precisely with respect to these rings when the particular row of rings has rings disposed in exact distribution, and thus to perform an exact distribution of spindles as well; it is also possible, first, to dispose the bearing brackets of the electromotors of one textile spindle row in such a manner that the longitudinal axes of the bearings for the rotor shafts contained therein will lie in a single plane and will be at uniform distances from one another, and only thereafter to center the rings on the ring rail and the other bearing brackets.
The rotor shaft of electromotor of the textile spindles can be integral with the spindle shaft or with a central lengthwise
REFERENCES:
patent: 1721280 (1929-07-01), Peineke
patent: 1789676 (1931-01-01), Friederich
patent: 2474210 (1949-06-01), Abbott
patent: 2571267 (1951-10-01), Ljunggren
patent: 3095687 (1963-07-01), Beerli
patent: 3555804 (1971-01-01), Murph
patent: 3742268 (1973-06-01), Volkrodt
Firma Zinser Textilmaschinen GmbH
Greigg Edwin E.
Petrakes John
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