Abstract: A yarn delivering apparatus comprises a yarn delivering wheel having a drive, as well as a yarn storing device having a yarn. laying device which is provided with its own yarn layer drive. A control device controls both drives, providing for a pure positive operation of the yarn delivering wheel on the one hand, and a yarn return delivery during shuttling of the knitting machine, on the other hand. Further, such a configuration improves the dynamics of the yarn delivering apparatus.

Abstract: A motor speed controller is structurally integrated into an electric motor for a belt drive in a circular knitting machine. The motor speed controller is connected by means of a cable strand with an interface unit placed at the circular knitting machine. The motor speed controller directly controls the electric motor windings and receives in the cable strand only the motor supply current and a motor speed target value.

Abstract: A handheld yarn measuring device (1) for monitoring yarn in yarn processing machines. The yarn measuring device includes a catcher (8), which when a trip lever (6) is actuated, places the yarn over a yarn applicator element (27) of a force sensor (29). The yarn tension and speed is detectable and delivered to a processing device for display and further processing. The device, which may be operated by one hand, has a boomerang-shaped housing (2) one end of which supports the trip lever (6), a control knob (10) and a display (5). The control knob (10) can be twisted and depressed by the user's thumb so that the selection of all the measurement and operating modes can be done with only the thumb. The measurement is performed by means of the trip lever (6), which actuates both the yarn catcher (8) and a measurement activation switch (49).

Abstract: The invention relates to a control unit for thread feeding devices, such as those associated with knitting machines and the like. The control unit generates pattern or switch data control signals based on a pattern memory, or otherwise, for the thread feeding devices. In an embodiment of the invention, the control unit adds to or subtracts from the pattern data any advance or lag angles as necessary to account for the structure of the machine and to thus assure effective thread feeding.

Abstract: A yarn feeder system (1) includes a plurality of yarn feeders combined into one group (8). In the trial mode, the yarn feeders operate in an individually tension-controlled manner on the basis of a specified yarn tension value. The yarn feed quantities or yarn speeds that result from this at the various yarn feeders are reported to a central unit. From the reported yarn speeds, the central unit calculates a group average and sends this to the yarn feeders as a specified value for subsequent operation. As a result, the individual yarn feeders can subsequently operate in the purely positive mode. Moreover, the central unit can receive signals that characterize both the machine speed (rpm) and pattern signals, on the basis of which the yarn feeders of the particular group that is to respond at that time are switched on and off or speeded up or slowed down.

Abstract: A yarn delivery device is provided with a motor-driven yarn delivery wheel, wherein the rotated position of the yarn delivery wheels is detected with high precision by means of an angle encoder. The angle encoder has at least a resolution s which is greater than the circumference of the yarn delivery wheel, measured in millimeters. The resolution s is preferably greater than five times (preferably 5.24 times) the value of the diameter of a winding of the yarn delivery wheel. The yarn delivery wheel is preferably looped by several (three to twenty) windings.

Abstract: A yarn delivering apparatus comprises a yarn delivering wheel having a drive, as well as a yarn storing device having a yarn. laying device which is provided with its own yarn layer drive. A control device controls both drives, providing for a pure positive operation of the yarn delivering wheel on the one hand, and a yarn return delivery during shuttling of the knitting machine, on the other hand. Further, such a configuration improves the dynamics of the yarn delivering apparatus.

Abstract: The yarn feeder device (1) of the invention has one or more yarn feeler levers (26), which are movably supported on the housing (2). The yarn feeler lever (26) is movable between an operating position I and a response position II. In the operating I, its crossbar (28) which forms the yarn feeler means is approximately in the same line as yarn guide elements, such as the struts (19, 23) of yarn guide bails (18, 22). Somewhat above its operating position I, the yarn feeler lever (26) meets a stop, past which it is not moved by the yarn (8). To improve the accessibility to the yarn guide elements (19, 23) particularly when yarn is being inserted and threaded in, the stop of the yarn feeler lever (26) is embodied as yielding. The yarn feeler lever (26) can therefore be moved upward manually past the stop on its lower end (28), in order to open up the space enclosed between the yarn guide elements (19, 23).

Abstract: A yarn feed system for a textile machine having a clamp for fastening to a mounting ring (4) of the machine. Contact pins are disposed on the clamp (3) and serve the purpose of piercing the insulation of a flat multi-cord cable (17) retained on the machine ring (4). For positionally correct orientation of the flat multi-cord cable (17) before and during the insulation-piercing operation, a guide element (37) is used, which is supported movably on or at the clamp. In the vertical direction, it is preferably retained by a spring arm (49). On its flanks, the flat multi-cord cable (17) preferably has grooves, which can likewise serve to orient the flat multi-cord cable positionally correctly before and during the insulation-piercing operation. The tips of the contact pins are located in the grooves and thereby bring about the alignment of the flat multi-cord cable (17 or 54).

Abstract: A yarn feeder system (1) includes a plurality of yarn feeders combined into one group (8). In the trial mode, the yarn feeders operate in an individually tension-controlled manner on the basis of a specified yarn tension value. The yarn feed quantities or yarn speeds that result from this at the various yarn feeders are reported to a central unit. From the reported yarn speeds, the central unit calculates a group average and sends this to the yarn feeders as a specified value for subsequent operation. As a result, the individual yarn feeders can subsequently operate in the purely positive mode. Moreover, the central unit can receive [both] signals that characterize both the machine speed (rpm) and pattern signals, on the basis of which the yarn feeders of the particular group that is to respond at that time are switched on and off or speeded up or slowed down.

Abstract: The yarn feeder having a plastic housing, preferably made of two clamshells, with a plastic fastening device for connecting the yarn feeder to a retaining device of a textile machine. The fastening device is made rigid by suitable shaping and without the necessity for metal inlays. The two clamshell halves of the housing each have a bearing for a continuous shaft, which on one end carries a yarn guide drum and on its other end carries pulleys for a drive device. Fasteners serve to hold the two housing parts together in the correct position for enabling easy opening of the housing for maintenance.

Abstract: In order to monitor/adjust production in a circular knitting machine including several knitting systems and several yarn feeder devices, yarn is fed to active knitting systems from several supply devices operating according to at least two different yarn feeding principles, and in a non-positive manner. The individually fed amounts of yarn are continuously measured by means of scanned real rotation signals of the feeder devices. In order to obtain monitoring information and/or adjustment measures, comparisons are made with corresponding set amounts of yarn within at least one range of tolerance, the extent of which is adapted at least to yarn quality and/or yarn path parameters.

Abstract: The bearing device is formed of a bearing seat, a roller bearing, and a squeeze element. The squeeze element rests over a large surface area on the outer ring of the roller bearing and rests only regionally on corresponding regions of the bearing seat. The regions are preferably linear or striplike and are oriented substantially axially. This facilitates the insertion and removal of the roller bearing into and out of the bearing seat and prevents rotation of the outer bearing ring even if the bearing seats are provided with relatively generous tolerances.

Abstract: A modular yarn feeder having a basic carrier on which additional modules can be secured as needed by suitable coupling devices. This makes the yarn feeder more adaptable to different kinds of use and different situations.

Abstract: A yarn feeder having one or more yarn feeler levers which rest on the yarn with a force which in the desired position of the lever, i.e. with a correct yarn run, is small. If the lever is pivoted out because the yarn tension is decreased or the yarn has broken, the force with which the lever rests on the yarn increases. This is achieved in the illustrated yarn feeler by a relief device which partially compensates for the weight of the lever and provides a compensating force as a function of the pivot angle. The compensating force preferably decreases with an increase in further pivotal movement of the lever.

Abstract: The yarn feeder of the invention has one or two yarn feeler levers, which monitor the yarn. In order to be able to prevent the monitoring if needed, a feeler barrier is provided. Its actuating device which in the illustrated embodiment is in the form of a handle, is disposed on an outer end of the basic body of the yarn feeder so that it is readily accessible to operators. The position set can also easily be seen from the position of the handle.

Abstract: A yarn feeder has a yarn feed wheel, which preferably comprises ceramic or is coated with a corresponding material. The yarn feed wheel, because of the choice of its material or its shaping, has improved long-term operation properties. The geometry and/or the material has low susceptibility to wear. This is attained by means of ceramic surfaces and/or the combination of a conical, continuous yarn inlet surface with adjoining striplike bearing faces in the yarn storage region and a continuous, that is, uninterrupted surface in the yarn payout region; the surfaces are shaped such that the yarn, along its way from the inlet region into the payout region, sweeps over the corresponding surfaces over the entire axial course. The striplike supporting or bearing of the yarn in the yarn storage region is attained by suitable shaping of the yarn feed wheel in the yarn storage region. Openings or slits or the like in the yarn feed wheel are not necessary but may be provided.

Abstract: An apparatus and method for pairing at least two threads for processing in a textile machine. The apparatus includes individual thread feeding devices for furnishing individual threads to a pairing device in which the individual threads are formed into a single resulting paired thread, and a paired thread feeding device, which includes a cylindrical accumulator coaxial with the individual thread feeder devices, for receiving the single resulting paired thread from the paired feed device and delivering the single resulting paired thread, under controlled tension, to the textile machine.

Abstract: In a lubricating device for a plurality of lubricating stations, in particular for supplying lubricant to knitting machines, a pump device is provided that serves at the same time as a distributor device. To that end, the pump device has a piston which is provided with a control groove. The corresponding pump cylinder has an inlet and a plurality of outlets distributed over the cylinder wall. Depending on which of the outlets the control groove of the piston is made to coincide with, a corresponding lubricating station is selected. The pump device is thus a distributor device as well.