D03D47/34

DEVICE FOR FEEDING WEFT THREADS TO A GRIPPER HEAD OF A LOOM
20240200241 · 2024-06-20 ·

A device feeds first and second weft threads in a weft direction to a gripper head of a loom and includes a coupling unit that moves back and forth in a warp direction. A first and a second feed unit are adjacently arranged in the warp direction on the coupling unit and are configured to feed the first and the second weft threads to the gripper head. A positioning unit moves the coupling unit in the warp direction in a first position of the coupling unit and counter to the warp direction in a second position of the coupling unit. The first feed unit feeds the first weft thread to the gripper head when the coupling unit is in the first position and the second feed unit feeds the second weft thread to the gripper head when the coupling unit is in the second position.

DEVICE FOR FEEDING WEFT THREADS TO A GRIPPER HEAD OF A LOOM
20240200241 · 2024-06-20 ·

A device feeds first and second weft threads in a weft direction to a gripper head of a loom and includes a coupling unit that moves back and forth in a warp direction. A first and a second feed unit are adjacently arranged in the warp direction on the coupling unit and are configured to feed the first and the second weft threads to the gripper head. A positioning unit moves the coupling unit in the warp direction in a first position of the coupling unit and counter to the warp direction in a second position of the coupling unit. The first feed unit feeds the first weft thread to the gripper head when the coupling unit is in the first position and the second feed unit feeds the second weft thread to the gripper head when the coupling unit is in the second position.

PILOTED ELECTROMAGNETIC BRAKE FOR CONTROLLING THE TENSION OF THE WEFT YARN IN WEAVING MACHINES
20180312367 · 2018-11-01 ·

Piloted electromagnetic brake for controlling the tension of the weft threads in weaving machines, in particular of a weft thread which has a high number of knots, of the type including a pair of opposite elastic thin plates between which the weft thread runs, an operated thin plate being adjusted in position by an electromagnetically controlled operating piston, and a resisting thin plate being resistant against an elastic contrast unit, in order to control the intensity of the contrast force between the pair of thin plates. The resisting thin plate and the operated thin plate have fulcrum points in correspondence of a central portion thereof, so as to be able to freely oscillate in a plane containing the weft thread, during the passage of a knot between them, and the fulcrum points are offset by a set length along the weft thread running direction.

Weaving Machine with an Apparatus as well as Method for Holding, Feeding and Inserting Weft Threads in a Loom Shed
20180291538 · 2018-10-11 ·

Apparatus and method for holding and feeding weft threads (1, 2) to the gripper (6) of a weaving machine with drives (25, 29), with which clamps (11, 12) for the weft threads (1, 2) are moved on motion paths (35, 36) into respectively a feed position (16, 19), a transfer position (17, 20) and a ready position (18, 21). The motion path (35, 36) of each clamp comprises a shape that is closed in itself. In that regard, the motion beginning of at least one of the clamps (11, 12) out of its ready position (18, 21) into its feed position (16, 19) takes place in a time segment that extends from the beginning of the beat-up motion of the weaving reed (9) until the beat-up of the previously inserted weft thread (1, 2) against the beat-up line (10) of the weaving machine.

Weaving Machine with an Apparatus as well as Method for Holding, Feeding and Inserting Weft Threads in a Loom Shed
20180291538 · 2018-10-11 ·

Apparatus and method for holding and feeding weft threads (1, 2) to the gripper (6) of a weaving machine with drives (25, 29), with which clamps (11, 12) for the weft threads (1, 2) are moved on motion paths (35, 36) into respectively a feed position (16, 19), a transfer position (17, 20) and a ready position (18, 21). The motion path (35, 36) of each clamp comprises a shape that is closed in itself. In that regard, the motion beginning of at least one of the clamps (11, 12) out of its ready position (18, 21) into its feed position (16, 19) takes place in a time segment that extends from the beginning of the beat-up motion of the weaving reed (9) until the beat-up of the previously inserted weft thread (1, 2) against the beat-up line (10) of the weaving machine.

Proliferated thread count of a woven textile by simultaneous insertion within a single pick insertion event of a loom apparatus multiple adjacent parallel yarns drawn from a multi-pick yarn package
12091785 · 2024-09-17 · ·

A method includes forming a multi-pick yarn package through winding multiple oriented yarns onto a spool, with the multiple oriented yarns serving as weft yarns forming adjacent substantially parallel yarns wound together. Each of the multiple oriented yarns is formed through drawing each of multiple yarns from a corresponding supply package. The method also includes, using the multi-pick yarn package, simultaneously inserting the weft yarns in a single pick insertion event of a pick insertion apparatus of a loom apparatus in which the simultaneously inserted weft yarns are to be conveyed through a set of warp yarns to produce an incremental length of a woven textile fabric.

Weaving Machine
20180179675 · 2018-06-28 ·

A weaving machine with a shedding arrangement (10, 25) for forming loom sheds (3) between warp threads (1) drawn off from a thread supply (9), a weft insertion arrangement (20) for inserting weft threads (2) in the form of tapes into the formed loom sheds (3), and a drawing-off arrangement (30) for drawing off the woven fabric (4) formed by warp and weft threads (1, 2) after a weft thread insertion. The weaving machine encompasses a measuring arrangement (40) for detecting geometric parameters, especially the width, of a weft thread (2) before its insertion in the loom shed (3), as well as an evaluating arrangement (45) for evaluating the detected measurement results. A control arrangement (50) for controlling a motion of the woven fabric (4), including the drawing-off, based on the evaluated measurement results, is present on the weaving machine and is connected with the drawing-off arrangement (30).

Weaving Machine
20180179675 · 2018-06-28 ·

A weaving machine with a shedding arrangement (10, 25) for forming loom sheds (3) between warp threads (1) drawn off from a thread supply (9), a weft insertion arrangement (20) for inserting weft threads (2) in the form of tapes into the formed loom sheds (3), and a drawing-off arrangement (30) for drawing off the woven fabric (4) formed by warp and weft threads (1, 2) after a weft thread insertion. The weaving machine encompasses a measuring arrangement (40) for detecting geometric parameters, especially the width, of a weft thread (2) before its insertion in the loom shed (3), as well as an evaluating arrangement (45) for evaluating the detected measurement results. A control arrangement (50) for controlling a motion of the woven fabric (4), including the drawing-off, based on the evaluated measurement results, is present on the weaving machine and is connected with the drawing-off arrangement (30).

METHOD FOR MANUFACTURING HEATING SHEET AND APPARATUS FOR MANUFACTURING SAME
20180127901 · 2018-05-10 · ·

The present invention relates to a method for manufacturing a heating sheet, the method comprising the steps of: a) weaving a weft including a carbon-coated weft W1 and a normal weft W2 and a warp including a metal wire into a fabric; b) cutting the woven fabric and connecting a power supply line to an electrode lead part by using, as the electrode lead part, a portion where the metal wire is located at the end of the cut fabric; and c) shielding the entire sheet-type fabric including the fabric and the power supply line by coating the same with an outer sheath, wherein, in step a), the carbon-coated weft W1 and the normal weft W2 satisfy formula 1 below:


0.2d.sub.1/d.sub.20.8[Formula 1]

[In formula 1, d.sub.1 is the denier of the carbon-coated weft W1 and d.sub.2 is the denier of the normal weft W2.]

Woven band with different stretch regions

A wearable band includes a woven material having two or more stretch regions. The different stretch regions can be formed by varying the tension on subsets of the warp threads, the weft threads, or both the warp and weft threads. A system for producing the woven material can include two or more tension control devices operably connected to a processing device. Each tension control device is configured to adjust the amount of tension in a respective subset of threads (e.g., warp threads) in the woven material during a weaving operation. The processing device is configured to select thread tension patterns for the subsets of threads used during the weaving operation. Each thread tension pattern includes tension settings for the subsets of threads, where at least one tension setting in one thread tension pattern differs from the tension settings in the other tension patterns.