Abstract: In the case of a supporting disk for a supporting disk bearing for open-end spinning rotors, the front side is provided with signal generators for the purpose of non-contact revolution counting, which function by means of magnetic field lines. Preferred are permanent magnetic pins which fit into the supporting disk, and which create an induction current. Single magnet embodiments include removal of surrounding disk material to mechanically balance the disk.

Abstract: A textile machine with an apparatus for recognizing and correcting deviations of sequences of movements of an element (31) driven by a driving element (33). A device (51) acquires the arrival time (t.sub.4) of the driven element (31) and corrects the start time (t.sub.1) of the driving element (33) within a predefined time window (t.sub.1u -t.sub.1o) until the arrival time (t.sub.4) of the driven element (31) lies within a predefined time window (t.sub.2u -t.sub.2o) again.

Abstract: A method is described for controlling the tension of an advancing yarn, which is crimped in a friction false twist unit of a false twist crimping machine. In accordance with the method, the tension of the advancing yarn is measured downstream of the friction false twist unit and the yarn tension is converted via a time filter and by comparison with a predetermined desired value into an adjustment signal for correcting the friction false twist unit, the control range being determined by defined limit values of the adjustment signal. The adjustment signal is a current value and is corrected adaptively via a PI controller, the control behavior of which takes into account the quotient from the change of the yarn tension and the change of the current value of the adjustment signal.

Abstract: A spinning method and a spinning frame are provided that yields spun yarn, with the comfortable feel of a hand-spun yarn, on an industrial scale. In spinning frame 1, rovings 11 are drafted with signals derived from a numerical sequence of having a 1/f fluctuation or signals derived from a melody or other sound having a 1/f fluctuation to yield a spun yarn 13 in which the diameter varies with said 1/f fluctuation, thus providing a natural, comfortable feel.

Abstract: A sliver processing machine includes a plurality of roll pairs between which a running sliver passes. Each roll pair is composed of a driving roll and a pressure roll. A separate pressing device is connected with each pressure roll for urging each pressure roll against its driving roll. Each pressing device has a shiftable element displaced by the pressure roll upon radial displacement of the pressure roll in response to winding of sliver on either the pressure roll or the associated driving roll. A common actuating element is connected to each shiftable element of each pressing device for displacing the common actuating element upon displacement of any one of the shiftable elements. A switching device is connected to the common actuating element. The switching device has an idle state and a signal-generating state.

Abstract: A method and system for maintaining spinning machines having a plurality of spinning stations include automatically positioning a maintenance unit proximate to the spinning stations for removing spinning components from the spinning stations and replacing the removed spinning components with replacement spinning components. The maintenance unit is configured to remove the spinning component from the spinning station for servicing, to immediately replace the removed spinning component with a replacement spinning component which is carried by the maintenance unit, and to transfer the removed spinning component to a remote service station. The removed spinning component is serviced at the service station and is subsequently picked up by the maintenance unit for subsequent installation into another spinning station.

Abstract: In a spinning apparatus including a rotatable spindle carrying a package for receiving a yarn from a yarn guide which is arranged in axial alignment with the spindle, a tubular element surrounds the package and the spindle and is floatingly supported by magnetic bearings and a second yarn guide is arranged so to be rotatable within the tubular element and receives the yarn for guiding it onto the package with a winding speed corresponding to the rotational speed difference between the spindle and the tubular element and sensors are arranged adjacent the tubular element for sensing any axial deviation of the tubular element from its desired position which axial deviation is taken as a measure for the yarn tension forces.

Abstract: A control system for a production machine especially a spinning machine has a multiplicity of working stations each of which has at least one sensor to determine an operating parameter and at least one effector for carrying out a control operation. The modules responsive to the sensor signals and the modules for producing commands to the effector are connected together in chains and the one end of each chain is connected to a central unit providing the management circuitry and is capable of initialization of the module chain. Data transmission is effected from module to module along the chain.

Abstract: A yarn draw-off device for use with a spinning machine includes a pressure roller and a rotatably driven draw-off shaft. The pressure roller is in contact with the draw-off shaft and is rotatably driven by the shaft. An adjustable mounting device is provided for the pressure roller. The pressure roller is rotatably mounted on the mounting device. The mounting device is selectively movable relative to the draw-off shaft so as to vary the contact pressure between the pressure roller and the draw-off shaft.

Abstract: In the case of a method for closed-loop controlling the revolutions of an open-end spinning rotor during automatic piecing, the spinning rotor is run up to its operating speed from a standstill by being coupled to a tangential drive belt, which runs at operating speed. The spinning rotor thereby passes through a suitable speed range for piecing, and is kept at this speed range for a predetermined time span by changes in the driving effect of the tangential drive belt. This occurs in that the revolutions of the spinning rotor are measured, and dependent on these readings, the revolutions are closed-loop controlled by device of reducing and increasing the driving effect, for example by device of intermittent activating of the rotor brake.

Abstract: A textile winding machine has a plurality of winding stations and a servicing device which travels along the winding stations. The winding stations are connected with an empty tube magazine disposed at the end of the machine via a conveyor extending along the machine. A manipulating device is provided at each winding station for transferring an empty tube into an intermediate tube storage location of the winding station. The manipulating device has a tube gripper pivotable between a tube pick-up position at the conveyor and a tube release position at the intermediate storage location. The servicing device replaces cheeses which have attained a predetermined diameter with empty tubes by transferring an empty tube out of the intermediate storage location of the respective winding station. In the process, the fill state of the intermediate storage location is monitored by a sensor system installed on the cheese changing servicing device.

Abstract: When a residual amount R of a roving required to make a bobbin full at a desired stopping position A of the bobbin rail which moves upwardly is smaller than the amount (4.times.L) corresponding to remaining four layers of the roving for a normal winding process, a desired amount Q is calculated as the residual amount R divided by 4. The switching of the roving during the downward movement of the bobbin rail is done when the amount of the roving from the top end of the bobbin rail is equal to the desired spinning amount Q. This operation is repeated until a full bobbin amount is detected by an encoder, and the flyer frame is stopped.

Abstract: The invention relates to the field of control of textile machinery which enables optimal control of fiber processing machinery to achieve a target operating point. The method optimizes the processing of fibers by determining a machinery model which simulates a fiber processing machine and introduces to the model different parameters related to the machinery and the input fibers to create optimized settings for the parameters of the machinery and the input fibers for the desired output. These optimal settings are introduced to the machinery and the inputted fibers to process the fibers to achieve the desired output.

Abstract: On the cradle (9) of the twisting machine there is mounted a control panel (38) powered externally through a first slip ring (37-137) and corresponding electrical lines (35-135-235). In the control panel there is located an electronic computer (39) which controls the operation of all the internal components of the twisting machine and which, through at least one serial line (41-141) and a second slip ring (42-142), is connected to an electronic computer (40) located in the control panel which is disposed outside the twisting machine. The electronic computer (40) is associated with a keyboard and screen unit (43) for the programming and interrogation of the computers. An electrical power supply line (35) is linked to the external panel and the mechanism for supply and control of the external components of the twisting machine are provided in this panel.

Abstract: The process and device for setting optimal piecing parameters in the spinning machine when changing batches includes entering and storing in a memory of a central machine computer spinning machine data relevant to the piecing operation. At the start of the piecing operation, the machine data is transmitted from the central machine computer to a microcomputer of a piecing device. The microcomputer contains a piecing program and a database of piecing parameters pertaining to the piecing process. An optimal set of piecing parameters is computed with the piecing program in the microcomputer. The microcomputer incorporates the spinning machine data and computes from the database an optimal basic set of piecing parameters. The optimal set of piecing parameters is displayed at an optical display unit associated with the microcomputer and can be manually adjusted.

Abstract: A sliver quality judging method in a textile machine which method can judge whether a spindle whose operating condition is bad is defective or not. Statistics are taken with respect to yarn quality information, including the breakage of yarn, uniformity, etc., for each spindle, then a spindle inferior in such yarn quality is picked out, and from the form of changes with time in the yarn quality information of that spindle there is made judgment whether the spindle is defective or sliver is of poor quality.

Abstract: A method for optimizing the spinning geometry of a spinning machine in which the lengths of the path segments between the drafting output and rolls and the yarn guide, between the yarn guide and the balloon constricting ring, between the balloon constricting ring and the traveller, or other angles are controlled in response to the yarn break frequency and/or spinning force and, when necessary, the spindle speed is also controlled to minimize the spinning force. The system can use a fuzzy logic.

Abstract: Apparatus for stress relieving multistranded cable includes a rotatable cradle of a double twist strander which carries a plurality of guide sheaves, a dual wheel capstan, and a take-up reel and a pay-off reel arranged to substantially reduce the length of the path of travel of the advancing cable and to impart stress relieving rotation and tension to the advancing cable. After the cable has been payed off of a stationary pay-off reel, it is advanced to a pair of metering sheaves to fix the starting point of the stress relieving process. From the metering sheaves, the cable advances to the dual wheel capstan mounted for rotation with the take-up reel on the cradle of the strander.

Abstract: A method and apparatus for simultaneously cleansing and grading yarn produced by a spinning or spooling machine with a plurality of spindles or primary spools. One spindle processor is associated with each spindle. The spindle-processor grades in a grading plane containing a cleansing envelope. All yarn defects located outside the cleansing envelope in the grading plane are considered unacceptable defects and are excised from the yarn.

Abstract: Method and apparatus for providing proper tension on a stranded conductor, as the conductor is formed and collected on a take-up reel or bobbin, by using a strain gage to monitor the tension of the conductor being collected and to provide a signal to a controller which in turn increases or decreases the speed of a direct current, variable speed, motor used to drive the take-up reel or bobbin, thereby providing proper tension to the conductor being collected.

Abstract: A method and system are provided for automatically controlling tension of an armour tape being wrapped around a continuous strand of material, such as an electrical cable, travelling through an armouring machine having a reel of tape and tape feed rolls rotating around the strand and having a motor or suitable variable speed drive (such as a P.I.V. variable speed drive) for controlling the speed of rotation of the tape feed rolls and thus of tape feed rate. To achieve automatic control, the diameter of the strand entering the machine is measured, preferably by a laser, and the diameter of the armour over the strand exiting the machine is also measured, also preferably by a laser. The measurements are communicated to a computer which compares them to preset values. The computer drives the motor or variable speed drive and adjusts them when required depending on the measurements of the two diameters and so as to maintain the preset values during the wrapping operation.

Abstract: A spinning mill with a master process control computer for at least one group of machines, whereby each machine of the group is provided with its own machine control unit which controls the actuators of the machine (including any auxiliary aggregates allocated to the machine). At least one network is provided for bidirectional communication between the computer and each machine of the group. During the operation of the plant, master control instructions from the process control computer are supplied via the network to the machine control units. Each machine control unit forwards the control instructions to the actuators controlled by the machine control unit, whereby the control instructions, if required, are converted by the machine control unit into control signals which are suitable for the actuators.

Abstract: A machine-management system for a spinning machine comprising a data acquisition file in which selected components of the machine are listed and the instantaneous condition for each selected component is stored in the file.

Abstract: The system includes a control system for deriving control variables from parameters which influence the productivity of the spinning machine (RS). Besides parameters which are measured by sensors, for the purposes of the control consideration is also given to those parameters which are not measurable or measurable only with difficulty. The last-mentioned parameters are included in the control system by means of a fuzzy logic, for which purpose the control system exhibits a fuzzy controller (FC).

Abstract: A rotor spinning machine has a plurality of simultaneously operated spinning stations each with a spinning rotor, an opening roller, a feed roller for delivering sliver to the opening roller, and a stepping motor connect directly to the feed roller for driving thereof. An actuating arrangement is provided for selectively actuating each stepping motor in a normal increment mode during spinning operation and in a microincrement mode during yarn piecing operations.

Abstract: In the case of a supporting disk for a supporting disk bearing for open-end spinning rotors, the front side is provided with signal generators for the purpose of non-contact revolution counting, which function by magnetic field lines. Preferred are permanent magnetic pins which fit into the supporting disk, and which create an induction current.

Abstract: A false twister which nips a yarn-between crossed belts and impart twist and feed to the yarn includes a sensor for detecting an untwisting tension of the yarn portion located downstream of the belts and the untwisting tension detected by the sensor is controlled to a target value of an untwisting tension by adjusting a contact pressure between the belts or a running speed of the belts.

Abstract: An automatic bobbin winder having a plurality of transport loops which have partially common transport tracks for bobbins is improved by the present invention wherein an electronic memory device is associated with the respective textile bobbin, as a carrier of product information. A monitoring apparatus for monitoring the success of the preparation of returned textile bobbins is provided at a first preparation device and is connected with a writing device for writing in the successful preparation into the memory device. A communication device for reading the information written in as the acknowledgement of successful preparation is provided at a second preparation device for textile bobbins to be fed to the bobbin winder. The communication device is connected with a control apparatus for the start-up of the second preparation device in the absence of the information acknowledging the successful preparation at the first preparation device.

Abstract: Flat filaments or ribbons are deflected by a system of sheaves to converge the filaments to closing stations proximate to points at which the filaments are tangentially applied to helical surfaces of a central cylindrical core member. Successive sets of filament deflection sheaves stack the filaments into bundles or stacks which can be separated by spacer elements which are applied to a smooth core or the filaments can be inserted into helical grooves or slots in the core. Preferably, adjacent filaments forming each stack are guided to prevent contact or totally eliminate sliding friction until just prior to application in the core. The apparatus and method can be used to produce optical fiber cables, high pressure flexible composite pipes and the like in which the flat ribbons can be wound either within helical grooves formed within the core or about the cylindrical surface of a smooth core.

Abstract: The invention relates to a process to determine the diameter of a bobbin at a spinning station of a spinning machine processing fiber slivers as well as to a device to carry out this process. The object is to avoid listed disadvantages and to find the applicable diameter of a bobbin in a simple manner and without directly touching said bobbin.

Abstract: A method and apparatus for continuously producing an endless thermoplastic material, such as yarn or tape, and winding the material into a package. A physical parameter of the package, such as its diameter or weight, is monitored, and a control signal is generated which is a function of the monitored physical parameter. The control signal is then compared to a predetermined reference signal, and an output signal is generated when the difference between the control signal and the reference signal exceeds a predetermined deviation. The output signal thus represents the quality of the material in the package, and it may be used to permit classification of the final product or to control the operating conditions of the apparatus so as to maintain a desired quality level.

Abstract: A data base used for determining the amount of decrease in the bobbin rotational speed that corresponds to an increase in the number of roving layers, along with silver weight, fiber kind, the number of revolutions of a flyer and the number of laps over presser, etc. as variables, is stored in a program memory. Based on roving conditions entered through an input unit and the data base stored in the program memory, a CPU calculates the amount of decrease of the bobbin rotational speed that corresponds to the increase in the number of sliver layers. With a control signal output from the CPU in response to the increase in the number of sliver layers, a wind-up motor is controlled to slow down so that the bobbin rotational speed is gradually reduced by a predetermined amount. The bobbin rotational speed is also controlled depending on the sliver position between a front roller and a flyer top.

Abstract: A system in which a plurality of spinning frames and a plurality of winders are connected by a common bobbin conveying passage, a circulating passage having a bobbin sensor is provided on a spinning bobbin supplying passage from the bobbin conveying passage to the winders, and a stopper is provided at an inlet of the circulating passage, the stopper being adapted to stop receiving bobbins when the number of passing bobbins per a predetermined time detected by the bobbin sensor exceeds a set value.

Abstract: An automatic textile machine includes a multiplicity of work stations each having its own work station electronics for controlling progress of work done at the work station. A method for detecting a position of a cop carrier carrying a textile cop in the vicinity of a work station includes evaluating mistuning of an oscillator circuit as information with a secondary coil disposed on the cop carrier; detecting the information transmitted by the cop carrier with a sensor device; carrying the information to the work station electronics; and processing the information with the work station electronics to initiate further operations. An apparatus for detecting the position of a cop carrier carrying a textile cop in the vicinity of one of the work stations includes a secondary coil disposed on the cop carrier, and a sensor disposed in the vicinity the winding station. The sensor is connected to the winding station electronics and detects information transmitted by the cop carrier.

Abstract: A process to test the monitoring function of an electronic sensor at the work station of a textile machine in order to avoid wrong decisions by the control unit of the work station. The sensors are tested during operation. For a brief time span a second sensor of the same type is located at the same time within the operating range of the sensor of the working station so that its function overlaps in time with that of the sensor of the work station. During the time of overlap the logical levels of the two sensors are detected, compared with each other and classified as result of the test.

Abstract: A textile winding machine having a transport system for recirculating bobbin tube support members carrying empty bobbins, and diverting tube support members carrying partially unwound bobbins, and tubes having remnant windings of yarn thereon into diverting paths is disclosed. Each bobbin has an information transfer device which contains data pertaining to the bobbin tube on which it is carried. At least one reading device is present in the transport system for reading the information transfer device. The transport system comprises a storage path for storing tube support members; a device for diverting tube support members; and a control unit connected to the reading device for controlling the diverting device to divert tube support members which tube support members are determined by the control unit in conjunction with the reading device to the storage path to have predetermined storage path conditions.

Abstract: The present invention provides a process and device for the reduction of energy consumption in operating spinning elements in driving spinning rotors of open-spinning machines or the spindle drive of ring spinning machine or the roving frame. It is the object of the invention to constantly keep energy consumption in the operation of spinning element at a minimum. Contact pressure between each spinning element and the indirect driving device is adjusted as a function of the momentary difference between the rotational speed of the spinning element and of its driving device in stationary operation while rotational speeds only nominally change, so that the slippage between indirect driving device and spinning element remains constant in time.

Abstract: In a textile machine with a drafting arrangement and textile spindles, the spindles are driven by an electric main drive. The drafting arrangement cylinders are coupled so that their speed is a given proportion of the speed of the main drive. The coupling is via a position-controlled brushless D.C. motor with electronic commutation for driving the drafting arrangement. An additional flywheel mass on the drafting arrangement drive is dimensioned so that the slowing-down time of the drafting arrangement is of the same order as the slowing-down time of the main drive, resulting in controlled slowing-down conditions if the voltage suddenly fails. The drafting arrangement motor can be made much smaller than hitherto. Also, the starting and slowing-down conditions can be accurately and sensitively controlled, thus reducing the risk of thread breakages.

Abstract: The instant invention relates to a process and to devices to convey textile goods from a receiving point to a point of deposit as well as for reception and deposit of the goods by means of a traveling vehicle. The goods to be conveyed are readied at the receiving points and are entered by a central computer. A conveying command is then elaborated by the central computer and is transmitted to a computing unit of the vehicle. The conveying vehicle is equipped with equipment for the autonomous and active execution of the conveying command. Upon completion of the conveying command, the vehicle reports back to the central computer. The conveyed goods are deposited in a sorted state.

Abstract: A process and apparatus for the control of a yarn storage mechanism on a spinning mill machine is proposed. When yarns are wound up it may occur, e.g. in forming conical bobbins, that more yarn is delivered than is wound up. The yarn which is briefly in excess is here taken up in form of a yarn loop by a compensator arm which intervenes transversely in the course of the yarn and is mounted so as to be capable of swivelling. According to the invention it is proposed that the compensator arm be subjected to the force of a spring which acts upon it increasingly as the yarn loop decreases, and in that the force of an additional elastic element acts upon the compensator arm as further excursion occurs.

Abstract: A multistation textile machine with a control and information processing system includes production stations each having at least one control device, control computers each being assigned to a production station and connected to the control device, a data bus connected to the control computers, and a CPU connected to the data bus having an adjusting device for set-point operating data to be transmitted over the data bus to the control computers. The control computers each control a production station in accordance with input set-point operating data and with a problem program in communication with the production station. The control computers each receive and process actual data of the production station and communicate with the production station and the CPU. The CPU transmits set-point operating data of the production stations and a complete problem program for the control computers over the data bus to the control computers.

Abstract: A conveyor system for carrying various kinds of bobbins which can easily and reliably discriminate a wrong combination of a tray with a specific mark and a color bobbin of specific color, wherein a spinning bobbin wound on a color bobbin of specific color is inserted on a tray having a specific mark; the tray having the specific mark is selected by a tray selector from a main conveyor line on which two or more kinds of trays are transported together, being distributed to delivery lines and of specific winding unit groups. In the delivery lines, color sensors are mounted for discriminating color bobbins of specific color.

Abstract: A coordinating apparatus for insuring the proper positioning of the traveling service unit with a respective work station of a textile machine so that data such as, for example, information concerning the servicing requirements of the respective work station and operating instructions, can be communicated between the service unit and the work station.

Abstract: A pot spinning device is disclosed for spinning textile yarn in which the spinning pot has an inner wall and the pot is driven by a magnetic bearing device for rotating the spinning pot. The magnetic bearing device provides radial and axial support of the pot. The magnetic bearing device may comprise at least one electromagnet disposed at each end of the spinning pot. At least the ends of the spinning pot may be formed of a magnetic material positioned to interact with the magnetic bearing device. The magnetic material may be formed as an annularly magnetic portion at each end. At least one sensor may be connected to the magnetic bearing device for detecting a displacement of the spinning pot. The magnetic bearing device may have a control device for stabilizing the position of the spinning pot against displacement due to exterior forces. The spinning pot may comprise a rotor of the electric motor. The electric motor may include an annular rotor on the spinning pot.

Abstract: A process for responding to a malfunction at an open-end spinning station of an open-end spinning machine which requires piecing of the yarn at the spinning station. The process is for use in open-end spinning machines having a travelling service unit which travels alongside adjacently dispose spinning stations for servicing the spinning stations. The process includes summoning the traveling service unit to the malfunctioning spinning station and attempting piecing at the spinning station with the service unit for at least 2 attempts. Before each of the piecing attempts, the spinning rotor of the station is cleaned of fiber and debris before each of the piecing attempts.

Abstract: A yarn break detecting device for a spinning machine includes detectors, a feed section and a control section. The detectors each include a pair of electrodes having substantially the same area and adapted to electrically induce a potential depending on static electricity charged on a yarn, a differential amplifier, a waveform shaper and an indicator lamp. The induced potential is then amplified and rectified to turn on the indicator lamp and concurrently fed to a microprocessor in the control section for operation processing, resulting in positions at which yarn break occurs and the number of yarn breaks being indicated.

Abstract: For the monitoring of the lap formation in the case of delivery bottom rollers of drafting units, sensing elements are provided which, when a lap is formed, as a result of the enlarged diameter at the delivery bottom roller, are moved radially away from this delivery bottom roller. The sensing elements are used as switching elements for an electric circuit to which a number of sensing elements, and preferably all sensing elements of the spinning machine, are assigned. When a lap is formed, the assigned electric contact is opened by the shifting movement of the sensing element so that the electric circuit is interrupted. The interruption of the electric circuit causes the triggering of a signal.

Abstract: A quality control system in a material processing mill. The mill may include several different processing machines for performing several different processing steps to produce several different intermediate products. Each processing machine is provided with a sub-processor for monitoring production information associated with the processing machine and quality information associated with the intermediate product produced by the processing machine. The quality and production information from the various sub-processors are directed to a main processor, which records a history of the processing of the various intermediate products.

Abstract: A spinning arrangement in which the working elements for the processing of fiber material are arranged within an adjustable climate-controlled zone. The climate-controlled zone can be adjusted in such a manner that the fiber material fed to the working elements has the tendency to supply humidity to the ambient air of the climate-controlled zone. Before the feeding, particularly when deposited in a can or on a roving bobbin and/or on the transport path to the working elements, the fiber material is surrounded by air whose climate differs from the climate in the adjustable climate-controlled zone of the working elements. During the processing, the fed fiber material and the working elements are each in a different climatic condition that is optimal for the processing.

Abstract: A method and apparatus for controlling a false twist texturing machine, which extends the previously known process for controlling operation during the normal operation of the machine, to exceptional operating conditions, such as during yarn thread-up and/or restarting after a temporary stoppage of operation by reason of a power failure. In accordance with the invention, the known method which includes control of the frictional force imparted to the yarn as a function of the yarn tension, is modified in such a manner that during periods other than normal operation, the control of the frictional force as a function of the yarn tension is terminated, and a predetermined frictional force is imparted to the yarn.