Abstract: A method which improves the correspondence between the produced fancy yarn and the predetermined configuration of said fancy yarn. The fancy yarn is guided through a sensor device in a spinning device after it is formed and the diameter of the fancy yarn is continuously measured by the sensor device. The fancy configuration of the produced yarn is determined on the basis of the measured values of the diameter and is compared with the predetermined fancy configuration. The comparison is carried out until sufficient correspondence between the predetermined fancy configuration and the fancy configuration of the optimized, produced yarn is achieved.

Abstract: A method which improves the correspondence between the produced fancy yarn and the predetermined configuration of said fancy yarn. The fancy yarn is guided through a sensor device in a spinning device after it is formed and the diameter of the fancy yarn is continuously measured by the sensor device. The fancy configuration of the produced yarn is determined on the basis of the measured values of the diameter and is compared with the predetermined fancy configuration. The comparison is carried out until sufficient correspondence between the predetermined fancy configuration and the fancy configuration of the optimized, produced yarn is achieved.

Abstract: A yarn cleaner for cleaning defects from a yarn, by means of a head for measuring at least one yarn parameter for comparison against cleaning limits determined for the yarn parameter. If the cleaning limits are exceeded, a defect in the yarn is indicated whereby intolerable defects may be cut out from the yarn. The yarn cleaner is set up for cleaning an effect yarn, also called a novelty or fancy yarn, formed from an alternating thinner webs and thickened effects in the yarn. At least one value of the yarn parameter is predetermined for webs and for effects and the cleaning limits of the yarn cleaner are adjusted such that they lie outside the predetermined value of the web parameter and outside the predetermined value of the effect parameter.

Abstract: The aim of the invention is to create a method that allows a previously produced fancy yarn to be reproduced. Said aim is achieved by a method in which a model fancy yarn is first guided through a sensor device for measuring purposes, the diameter of the model fancy yarn is continuously measured using the sensor device, the measured diameter values are evaluated, and the formation of the effect of the model fancy yarn is determined therefrom. Spinning settings are generated from the data representing the formation of the effect, and said spinning settings, which are based on the set of data, are used for producing a fancy yarn.

Abstract: The yarn cleaner (5) is designed for cleaning out defects from an effect yarn (1), which is formed from an alternating stringing together of webs and of effects comprised of given thickenings. The yarn cleaner has a measuring head (6) in which at least one yarn parameter is measured, whereby cleaning limits are determined for the yarn parameter, and the presence of a defect in the yarn is signaled when these limits are surpassed. The measured values of the yarn parameter are compared with the cleaning limits and intolerable defects are cut out from the yarn. The cleaning limits are each dependent on whether the values are measured in the web or in the effect. The yarn cleaner (5) is suited for keeping the desired diameter quality of effect yarn on winding and spinning winding machines.

Abstract: A method and an apparatus for contactless yarn monitoring in a textile yarn winding operation wherein a yarn is wound on a bobbin while being delivered lengthwise in a yarn travel direction toward the bobbin and simultaneously executing traversing motions generally perpendicular to the yarn travel direction. A sensor device (6) is provided which detects measured values such as diameter or mass in a moving yarn. The measurement errors caused by the traversing motions may be compensated for by ascertaining position-dependent correction values, monitoring the position of the yarn in the measurement region to determine one or more instantaneous position of the yarn, and compensating for the applicable measurement error is performed on the basis of the instantaneous position of the yarn (3). The invention is applicable to sensor devices (6) that perform measurements in the traversing region of the yarn (3).

Abstract: A textile machine, such as a spinning or bobbin winding machine, has a plurality of identical work stations and an improved control and information system, wherein a measuring head (10, 10′) of a yarn cleaning device as well as an individual processor (14, 14′) for controlling the work station, for evaluating the signals from the measuring head (10, 10′) and for the control of the cleaning device for the yarn (8) are arranged at each work station, and wherein communications with a central processor (21) take place via a common data bus (24).

Abstract: A method for the contactless measuring of strand-like yarn material as well as to a device for carrying out the method. Textile material 4is irradiated within a measuring range of at least one ray source 1 and imaged on a sensor range of a receiving device 10 comprising sensor cells 8, 11, 12, 14. The signals generated by the individual sensor cells 8, 11, 12, 14 are converted into measured values for the dimensions of material to be measured 4. The signals of the sensor cells 12, 14 covered only partially by the image of the textile material 4 are taken into account in the measured result in a pro rata manner proportional to the amount of the covering.

Abstract: As an alternative to an expensive bus system commonly utilized in multi-station automatically operating textile machines for exchange of data between a central control device and local control devices at the individual work stations, the present invention provides a central control device disposed on a traveling service unit which can be positioned sequentially at each work station, particularly in the course of a restart of the textile machine, for transmitting data between the central control device and the individual control device of each work station, e.g., for supplying control data to the work stations, for collecting event data, production data and yarn quality data from the work stations, and for assimilating the collected data when the service unit is positioned in front of a work station.