Winding – tensioning – or guiding – Helical or random winding of material – Alternately or sequentially wound spools
Patent
1999-01-28
2000-12-19
Walsh, Donald P.
Winding, tensioning, or guiding
Helical or random winding of material
Alternately or sequentially wound spools
242486, 2424863, B65H 67048
Patent
active
06161789&
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
The invention relates to a device.
It is based on a device described in European Patent Disclosure EP 0 254 944 B1. In this known device, the drive mechanism of the feeler roller and the drive mechanisms of each of the two creels each need their own resetter. Each of the two resetters assigned to the creels can be switched over by a switch to the drive mechanism the feeler roller. When the machine is started up, the drive mechanism of the feeler roller is first supplied by the resetter that belongs to the creel in readiness at that time. Once the rotation of the feeler roller has stabilized, the drive mechanism is switched over to its own resetter. This connection continues until the machine is stopped.
A device for winding up yarns is also known from European Patent Disclosure EP 0 391 101 B1, in which a separate resetter is provided for the drive mechanism of the feeler roller and for each of the drive mechanisms of the two creels.
SUMMARY OF THE INVENTION
The object of the invention is to make an uninterrupted yarn winding device having less expensive than in the prior art.
In keeping with these objects, a device for uninterrupted yarn winding in accordance with the present invention has a drive mechanism of a filler roller which is electrically connected except for a brief period of time when the bobbin change takes place- with a resetter of a creel that is in the readiness position at that time.
By means of these characteristics, a separate resetter for the feeler roller is dispensed with. Only two resetters are provided for the total of three drive mechanisms of the two creels and the feeler roller.
The novel features which are considered as characteristic for the present invention are set forth in particular in the appended claims. The invention itself, however, both as to its construction and its method of operation, together with additional objects and advantages thereof, will be best understood from the following description of specific embodiments when read in connection with the accompanying drawings.
BRIEF DESCRIPTION OF THE DRAWINGS
FIGS. 1 and 2 show a device according to the invention in two different operating states.
DESCRIPTION OF PREFERRED EMBODIMENTS
Two creels 3a, 3b are mounted on an inverter head 1 which is pivotable about an axis 2. In the state shown in FIG. 1, the creel 3a is in the winding position and the creel 3b is in the readiness position. A bobbin tube 4a is seated on the creel 3a. A bobbin 5 is wound onto it and is shown being formed. An empty tube 4b rests on the creel 3b.
The jacket face of a feeler roller 6 rests on the surface of the bobbin 5. A yarn 7 is delivered to the bobbin via a shogging device 8 in a known manner, in the process wrapping around the feeler roller 6 over part of its circumference.
The two creels 3a, 3b, the feeler roller 6, and the shogging device 8 each have their own controllable-frequency drive mechanism 9a, 9b, 10, 11. Sensors 12a, 12b, 13 are provided for measuring the rpm of the two creels 3a, 3b and of the feeler roller 6.
Each of the drive mechanisms 9a, 9b of the two creels 3a, 3b is assigned its own resetter 14a, 14b with a variable starting frequency, and the drive mechanism 11 of the shogging device 8 is assigned a resetter 15. No separate resetter is provided for the drive mechanism 10 of the feeler roller 6.
In the operating state shown in FIG. 1, the drive mechanism 9a of the creel 3a that is in the winding position is connected electrically to the resetter 14a via a switch 16a, which is electrically actuated by a control unit 17 via a line 18a. The resetter 14a is designated as the "assigned" resetter for the drive mechanism 9a with which it is connected whenever the associated creel 3a is in the winding position. The same is correspondingly true for the resetter 14b with respect to the drive mechanism 9b and the creel 3b. A bus system 19 is provided for transmitting the signals of the control unit 17.
The creel 3b in the readiness position is not driven. The associated resetter 14b is electri
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patent: 5605293 (1997-02-01), Imae et al.
patent: 5924645 (1999-07-01), Oshiumi
Neumag - Neumuenstersche Maschinen - und Anlagenbau GmbH
Striker Michael J.
Walsh Donald P.
Webb Collin A.
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