Abstract: A hybrid yarn, and associated system and method of making, are provided wherein a first continuous yarn is formed as a multi-filament yarn and a second continuous yarn is formed as a crimped yarn consisting of thermoplastic fibers in a parallel thread sheet. The parallel thread sheet has a plurality of crimped continuous threads next to one another in one plane. The continuous threads are formed from as a collection of a plurality of continuous filaments.

Abstract: A hybrid yarn, and associated system and method of making, are provided wherein a first continuous yarn is formed as a multi-filament yarn and a second continuous yarn is formed as a crimped yarn consisting of thermoplastic fibers in a parallel thread sheet. The parallel thread sheet has a plurality of crimped continuous threads next to one another in one plane. The continuous threads are formed from as a collection of a plurality of continuous filaments.

Abstract: A winding device and associated method for swiveling a bobbin in the winding device during an interruption of a winding operation are provided, wherein the bobbin rests on a backing roller and is formed on a bobbin tube onto which a thread is wound. The bobbin tube is rotatably held between holders on two retaining arms mounted on a common swivel arm having a swivel axis. With force measurement unit, one of intrinsic weight of the bobbin or a force effect that acts on the retaining arms due to contact of the bobbin with the backing roller is measured. A manual force is transmitted into at least one of the retaining arms in a force direction that is determined by evaluating the force measurement unit. With a drive that is operably configured with the swivel arm, the swivel arm is swiveled in the force direction.

Abstract: A winding device for winding a yarn onto a package tube has a spindle that holds and rotationally drives the package tube. A support roller abuts against a peripheral surface of the yarn winding package during winding of the yarn. The spindle is supported by a pivotably mounted swivel arm so as to swivel relative to the support roller. A contact-force control device is provided and includes an actuator disposed to actuate the swivel arm, and a control device configured with the actuator. A bending beam load cell is configured on the swivel arm to determine an actual value of a contact force between the yarn package and the support roller. The contact force is regulated to a predetermined target value via control of the actuator by the control device.

Abstract: The invention relates to a winding device (16) for winding a yarn (20) onto a package tube (22) in order to form a yarn winding package (24). The winding device comprises a spindle (34) for holding and rotationally driving the package tube (22) about its longitudinal axis (30) and a support roller (40) that abuts against the peripheral surface of the yarn winding package (24) during winding of the yarn (20). The spindle (34) with the yarn winding package (24) can be swiveled relative to the support roller (40) by means of at least one pivotably mounted swivel arm (46). The winding device has a contact-force control device (54) with an actuator (56) for the swivel arm (46), with a control device (58) for controlling the actuator (56), and with a bending beam load cell (60) associated with the swivel arm (46).

Abstract: The present invention relates to a method and a device for swiveling a bobbin (2) in a winding device during an interruption of a winding operation. The bobbin (2) rests on a backing roller (3) and is formed on a bobbin tube (5) onto which a thread (4) is wound. The bobbin tube (5) is rotatably held between two retaining arms (6, 7) via a holder (8, 9) in each case. The two retaining arms (6, 7) are mounted on a shared swivel arm (10) having a swivel axis (11). A force effect that acts on at least one retaining arm (6) due to contact of the bobbin (2) with the backing roller (3) or the intrinsic weight of the bobbin (2) is measured by a force measurement unit (12). A force (G, H) is introduced into this retaining arm (6) by a manual transmission of force, wherein a force direction of the manually introduced force (G, H) is determined by evaluating the force measurement, and by means of a drive (13) the swivel arm (10) is swiveled corresponding to the force direction.

Abstract: The present invention relates to a tube holder (6, 7) for a bobbin frame (1) of a winding device, having a conical tube holder element (23), a retaining element (24), and a spring element (25). The tube holder element (23) is nonrotatably connected to the retaining element (24) via the spring element (25), and the spring element (25) is designed as a spring washer.

Abstract: An apparatus (1) is presented for the insertion of a weft thread (2) into a shed (10) of a rapier weaving machine. The apparatus (1) includes a rapier tape (3b) movable in the insertion direction, a rapier head (3a) at the same and at least one guide part (5) which is provided at the rapier tape or at the rapier head as well as a plurality of guide elements (6.1-6.i+1) which cooperate with the guide part to guide the rapier tape or the rapier head in the shed, wherein the start of the guidance of the guide part by the guide elements is delayed until the rapier tip ( 3) is at a distance of at least 14 cm in the shed.

Abstract: A cutting device (10) for a weaving machine (1) is presented which includes a first blade (12.1) on a first blade carrier (11.1), a second blade (12.2) on a movable and guided blade carrier (11.2) and a drive which cooperates with the movable blade carrier and includes a pneumatic actuator (14, 14?) and a spring (15) in order to part a weft thread (2) to be inserted into a shed or inserted into a shed. The spring (15) can be stressed by means of the pneumatic actuator (14, 14?) and the two blades (12.1, 12.2) can be closed by means of the action of the spring.

Abstract: A catching device (1) for holding an inserted weft thread in a rapier weaving machine having at least one rapier (6), which is movable along a rapier track (6a), includes a holding channel (5) which can be mounted in a stationary manner on the rapier weaving machine in order to take up a thread end of the inserted weft thread (9) and to hold it. In addition, the catching device includes a deflection nozzle (3) which can be mounted in stationary manner on the rapier weaving machine in order to deflect the thread end of the inserted weft thread to the holding channel (5).

Abstract: A controlled thread brake for braking a weft thread (10) in a weaving machine is presented which comprises a brake band (3) and a brake body (2), with the thread brake (1) additionally comprising an electromagnet (6) and a rotatable or rocking lever (4) which can be moved by means of the electromagnet. The lever (4) is connected to the brake band (3) so that a pulling force can be exerted in the longitudinal direction of the brake band by means of the electromagnet (6) in order to be able to press the latter against the brake body (2) for braking the weft thread.

Abstract: An inserting rapier (1) for a rapier weaving machine with a thread clamp (4) for the firm clamping of a weft thread (3) is presented, with the inserting rapier also including a guiding or holding device (10) with a guiding or holding element (5) and a mass (6) which are movably arranged on the inserting rapier and with the guiding or holding element (5) being movable by means of the inertia of the mass (6) in order to guide or hold the weft thread.

Abstract: With the measuring device movements are determined on a weaving machine (1). With this measuring device (2) digital signals can be produced at discrete points in time occurring in a periodic sequence by means of a positional determination of one or more identifiable points (31) which are located on a moved surface (30) and within a two dimensional measuring window (3) of the measuring device. These signals can be evaluated for determining an interval which can be associated with changes in position of the identifiable positions. Optical and electronic components (21, 22, 23, 20) for effecting pattern recognition are integrated in the measuring device. The identifiable positions can be defined by the pattern recognition. The positions of at least some of these positions can be determined at two sequential points in time of the said sequence. The interval associated with the changes in position can be calculated at each of the discrete points in time.

Abstract: The apparatus (1) for making available a leno thread (2a, 3a) for a weaving machine comprises a shaft (4) which is rotatably journalled about an axis of rotation (A). This apparatus has an active connection to a drive apparatus (5) in order to set the shaft (4) into rotation, and comprises a holder apparatus (6) for accommodating a leno thread bobbin (2, 3), with the holder apparatus (6) being rotatably connected to the shaft (4). There is included a holder means (7) for the substantially rotation-free holding of the holder apparatus (6), and a thread guiding element (8) which is firmly connected to the shaft (4). The holder apparatus (6) is designed for the accommodation of at least two leno thread bobbins (2, 3). The shaft (4) has a thread guiding passage (4a) which opens towards the holder apparatus (6) and which is designed in such a manner that both leno threads (2a, 3a) passing through the thread guiding passage (4a) can be supplied to the thread guiding element (8).

Abstract: The apparatus (1) for making available a leno thread (2a, 3a) for a weaving machine comprises a shaft (4) which is rotatably journalled about an axis of rotation (A) and which has an active connection to a drive apparatus (5) in order to set the shaft (4) into rotation, and comprises a holder apparatus (6) for accommodating a leno thread bobbin (2, 3), with the holder apparatus (6) being rotatably connected to the shaft (4), and comprises a holder means (7) for the substantially rotation-free holding of the holder apparatus (6), and comprises a thread guiding element (8) which is firmly connected to the shaft (4), with the holder apparatus (6) being designed for the accommodation of at least two leno thread bobbins (2, 3) and with the shaft (4) having a thread guiding passage (4a) which opens towards the holder apparatus (6) and which is designed in such a manner that both leno threads (2a, 3a) passing through the thread guiding passage (4a) can be supplied to the thread guiding element (8)

Abstract: The stationary thread guiding element (1) for a series shed weaving machine which has a plurality of concentrically extending grooves (1a, 1b, 1c, 1d) at an end face (1i) is designed as a segment or sector of a circle.

Abstract: The stationary thread guiding element (1) for a series shed weaving machine which has a plurality of concentrically extending grooves (1a, 1b, 1c, 1d) at an end face (1i) is designed as a segment or sector of a circle.

Abstract: Lengths of weft thread are sequentially inserted in sheds formed by a series shed weaving machine. Weft thread is continuously supplied with a fluid flow. By reversing the flow direction of the fluid flow or deflecting the weft thread, a thread loop is formed outside a weft distribution apparatus of the weaving machine so that the weft thread remains taut inside the weft thread distribution apparatus. A nozzle arrangement in which the fluid flow direction is reversible or a weft thread clamping and deflecting arrangement are used to form the loop and maintain the weft thread taut.

Abstract: Weft thread distributor apparatus for a series shed weaving machine in which a weft thread is fed into a connection channel via a supply nozzle and is distributed within the connection channel to shoot-in tubes. In order to achieve a trouble-free cutting off of the inserted weft and rerouting of the new weft thread tip a cutting device is placed spatially between the shoot-in tube and the clamping device in order that a retraction force and a loop standing under said retraction force are already formed due to of the supply nozzle and the injector nozzle prior to the stopping of the weft thread in the clamping device. During the stopping in the clamping device the thread is pre-tensioned in the cutting device and can be cut without difficulty. The loop unwraps itself and a new weft thread tip is inserted into the shoot-in tube.

Abstract: An apparatus and method for correcting an irregularity during the insertion of a weft yarn into a weaving rotor of a series shed weaving machine involves drawing a length of weft yarn from a supply unit and delivering the weft yarn to the weaving machine in synchronicity with the weaving cycle. The length of weft yarn is inserted into a weft yarn conveyor apparatus and wound around a conveyor roller. A sensor is positioned between the supply unit and the conveyor apparatus to detect a weft yarn interruption, e.g., as a result of a weft yarn breakage or the yarn running out of spool. When the interruption is detected, the conveyor roller continues to deliver weft yarn stored in the storage apparatus until a complete weft yarn insertion into the weaving machine has taken place (i.e., weft yarn having a single loom width). The weft yarn is then cut at the insertion side of the weaving machine and the weaving machine is stopped.