W. Schlafhorst Ag & Company

Jurgen Enger

Paul Straaten

Ulrich Fechter

Hermann-Josef Vest

Josef Bertrams

Norbert Corres

Bernhard Schmitz

Dieter Spinnen

Peter Schwartz

A method for operating a cheese-producing textile machine (1), having a plurality of aligned work stations (2), a transport device (21) extending over the length of the machine for removing finished cheeses (11), and a cheese changer (23) displaceable above the work stations with an ultrasound sensor device (30) connected to the control device (38) of the cheese changer (23) for monitoring the loading state of the transport device (21). The sensor device (30, 38) is initially set to the climatic conditions of the respective place of employment by processing appropriate reference sound signals, i.e. a correction factor is determined. During operation, scanning values (TW) are then determined by means of the traveling time of the measuring sound signals of the ultrasound sensor (30) which, taking into consideration the respectively prevailing climatic conditions, permit conclusions regarding the loading state of the transport device (21) in the deposit areas of the respective work station (2).

Method for operating a cheese-producing textile machine and a sensor

A cheese-producing textile machine 1 having a plurality of winding stations 2 with respective separate winding station computers 39 and a unit 23 for servicing the winding stations 2. The textile machine 1 has a central control unit 37 and the service unit 23 has a separate control computer 38. These control devices 37, 38 and 39 are connected with each other by means of a machine bus 40. During the process of replacing a finished cheese with an empty tube at any winding station, a cheese brake integrated into the winding creel 18 and/or a creel lifting device 49 can be actuated by the service unit computer 38 via the machine bus 40 in a pulsed manner when needed, for example to dislodge a cheese 11 which is stuck in the winding creel.

Cheese-producing textile machine

An automatic package doffer of a textile winding machine includes a yarn engaging device and a travel limiting device. The yarn engaging device includes a pivot housing and a movably hinged yarn lifter head and is seated on a pivot and bearing shaft in a partially rotatable and axially displaceable disposition. A yarn catcher plate, clamping shears, and a yarn guide plate are disposed on the yarn lifter head. The yarn engaging device also includes a stop element for engaging the housing of a respective winding station for stopping movement of the yarn engaging device at a first predefined position with respect to the winding station housing. The travel limiting device includes a clamp assembly that is clampable to the yarn engaging device when at the first predefined position and guide rails attached to the doffer upon which the clamp assembly is slidably disposed. A pneumatic cylinder selectively causes the clamp assembly to clamp onto a braking tube that is part of the yarn engaging device. Another stop element disposed on the doffer limits travel of the clamp assembly and the clamped yarn engaging device at a second predefined position whereat a yarn supply is positioned against an empty tube. Thus, it possible to repeatedly place a yarn end of a supply yarn against an empty tube held in the winding frame at a precise and accurate position without elaborate adjusting steps being required at the winding station or on the doffer.

Yarn positioning mechanism of an automatic traveling package doffer

An apparatus for automatically forming yarn reserve windings selectively on either end of an empty tube prior to winding a yarn package thereon utilizes a threaded spindle and spindle nut assembly for supporting one of a pair of tube clamping plates for selective longitudinal displacement of a tube clamped therebetween during rotation of the tube to place the yarn reserve windings thereon. The hand of the threaded connection between the spindle and spindle nut determines the longitudinal direction in which the tube is displaced and, in turn, determines the end of the tube about which reserve windings are to be formed. In one embodiment, the spindle and spindle nut assembly are exchangeable for a like assembly formed with opposite threads, thereby to alter the longitudinal direction of tube displacement. In another embodiment, an interiorly and exteriorly threaded bushing is interposed between the spindle and the spindle nut, to form oppositely mating threads between the bushing and the spindle and between the bushing and the nut. Set screws are provided to selectively fix the nut with respect to the bushing or, alternatively, to fix the spindle with respect to the bushing, thereby to change the longitudinal direction of tube displacement without necessitating an exchange of the spindle and nut assembly.

Apparatus for selectively placing yarn reserve windings on opposite ends

A method for winding a yarn reserve a tube of a bobbin before a yarn package is wound includes initially applying a piece of yarn on an end of a tube of a bobbin while leaving a free yarn end. The piece of yarn is covered and fixed in place with a small number of yarn windings of a yarn reserve. The free yarn end is severed on the tube between the yarn reserve and the tube end while the bobbin is rotating. An apparatus for winding a yarn reserve on a tube of a bobbin before a yarn package is wound includes a holder for a bobbin tube. A yarn transferring device delivers a yarn to the tube. A drive drives the tube while initially applying a piece of yarn on an end of the tube and leaving a free yarn end. A yarn guide lays the yarn on the tube and covers and fixes the piece of yarn in place with a small number of yarn windings of a yarn reserve. A yarn cutter trips a severing process by being fed toward the rotating tube and severs the free end of the yarn on the tube between the yarn reserve and the tube end.

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Monchengladbach, Germany

Jurgen Enger