Patent classifications
D03D41/008
DEVICE FOR FEEDING WEFT THREADS TO A GRIPPER HEAD OF A LOOM
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.
Method for manufacturing woven fabric and woven fabric
To provide a method for manufacturing a woven fabric for which neither the appearance nor a function provided by flat threads of the woven fabric are impaired, and to provide the woven fabric. The woven fabric further includes flat threads 3 each wider than a fiber warp thread 10, and the flat threads 3 are caused to pass through healds 102 intermittently with respect to a plurality of the fiber warp threads 10. A hole 102a of each heald is long in a heald moving direction. By causing the flat thread 3 to pass through the hole, the longitudinal direction in transverse plane of the flat thread 3 is oriented along a heald moving direction M. By interweaving fiber weft threads with the fiber warp threads 10, a plurality of woven fabric placement sections is formed so as to be arranged in a weft direction W, each woven fabric placement section being formed as a woven fabric structure and having the flat thread corresponding thereto placed on the woven fabric structure. A flat face HF of the flat thread 3 is disposed on the fiber warp threads 10 in the woven fabric placement section so as to face the fiber warp threads 10. A part of the fiber weft threads is caused to pass over the flat thread 3, to fix the flat thread 3 on the woven fabric placement section. The woven fabric covering section may be formed as a plain weave.
Textile product
A textile product (1) comprising individual elements (4) interconnected by a textile technique, characterized in that the interconnected individual elements (4) hold at least one decorative or functional element (2, 2, 2, 12, 12, 22) between each other, e.g. by braiding in or braiding around.
Multilayered Woven Fabric as well as Corresponding Production Method
The invention relates to a woven fabric of warp and weft threads with a construction in warp thread direction of at least first, second and third warp threads (11, 13, 12) running above one another, wherein: the third warp threads (12) always extend between the first and second warp threads (11, 13), the weft threads (16) are guided through alternating loom sheds (35, 36, 37, 38) between as well as below and above these at least three warp threads (11, 13, 12), and the third warp threads (12) consist of a different material than the first and the second warp threads (11, 13).
Similarly the invention relates to a method for producing a multilayered woven fabric of warp and weft threads by means of a weaving machine.
NON-STOP TYING-IN PROCESS
Various examples are provided for non-stop tying-in process for weaving of textiles. In one example, a method for non-stop tying-in of loom warps during operation of a loom includes providing free ends of a replacement warp sheet and a warp sheet tail to the tying-in machine during the operation of the loom, where the warp sheet tail is provided through a warp accumulator; accumulating the warp sheet tail in the warp accumulator during tying-in of the free ends; supplying at least a portion of the warp sheet tail accumulated by the warp accumulator to the loom after being released from a warp beam; removing the tied-in warp sheet tail and replacement warp sheet from the warp accumulator; and supplying the replacement warp sheet to the loom during its operation.
Weaving Machine
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).
Two-Dimensional Fabric and Method for the Production Thereof
A two-dimensional fabric (20) used to produce a three-dimensional composite part has a binding system (21) with binding warp threads (23) and/or binding weft threads (24) and a reinforcing system (22) with reinforcing weft threads (25) and/or reinforcing warp threads (26). At least some of the inserted reinforcing threads (25) are shortened reinforcing weft threads (25a) and/or shortened reinforcing warp threads (26a). Their thread length (L) is less than that of the binding weft threads (24) or the binding warp threads (23). The shortened reinforcing thread's (25a), (26a) free ends are located in a respective thread end position (30) or (31). The respective thread length (L) and the respective thread end positions (30), (31) of a shortened reinforcing thread (25a), (26a) in the two-dimensional fabric (20) are predetermined based on the three-dimensional shape of the composite part to be produced to reduce cutting waste when producing preforms and cutting effort.
Heddle for a loom, in particular a circular loom
A heddle (10) is provided for weaving strip-shaped warp yarn. Said heddle (10) includes a heddle shaft (12) formed by two shaft parts (13). Said shaft parts (13) are placed on top of each other in a respective end section (15) of the heddle shaft (12) and interconnected. The end eyelets (16) of the heddle (10) are also in said end section (15). To form a yarn eye between both shaft parts (13), two separate warp yarn guiding bodies (20) are placed therebetween. To determine the position of the warp yarn guiding body (20) with respect to the heddle shaft (12), at least one shaft projection (22) is produced by stamping and subsequent bending or embossing each shaft part (13) for each warp yarn guiding body (20). Said shaft projection (22) engages in an associated recess (25) of the warp yarn guiding body (20), and a bonding connection is produced.
Device for feeding weft threads to a gripper head of a loom
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.