摘要:
Novel woven materials, producible by a new weaving method, are described that comprise single or doubled warps and wefts in the form of tapes that are preferably partially stabilized type of fibrous tape. These fibres are caused to occur in a non-linear arrangement during the weaving process. The non-linear fibres can be subsequently straightened by pulling the tape longitudinally. The doubled warps and wefts comprise disconnected tapes. Such separateness of constituent tapes of doubled warp and weft tapes enables them to be slid/slipped relative to each other by pulling longitudinally and laterally without causing any alteration in the woven structure. These novel fabrics solve the problem of uneven fibre distribution and orientation arising from crumples/wrinkles due to compression and stretches due to extension, at the inner and outer sides respectively, when tape- woven fabrics are curved into shapes. Further, by using doubled warps and wefts fabrics with relatively flat/planar sections and thicker/raised wide rib sections can be also created that resemble a bit like a profiled material in its cross-section. Other fabrics like those comprising slant/oblique weft tapes, shaped warp and weft tapes, formed shape within its body are also producible.
摘要:
A method of producing a reinforcing fiber woven fabric, for producing on a weaving machine a reinforcing fiber woven fabric from wefts of reinforcing fiber yarns and warps of reinforcing fibers, the method comprising providing, on a weft supply passage for supplying wefts from a weft bobbin to a weaving machine, a weft unwinding means for laterally unwinding wefts from a weft bobbin, and a weft storing cylinder body for sucking, along with air, part of wefts thus unwound and directed toward the weaving machine and temporarily storing them therein, contactingly supporting wefts, minimized in generation of twist by means of lateral unwinding, by a weft contacting means provided in the weft storing cylinder body while being stored in the weft storing cylinder, and preventing the generation of twist of wefts being stored by this supporting; a production device therefor; and a reinforcing fiber woven fabric produced therefrom.
摘要:
A method of producing a reinforcing fiber woven fabric, for producing on a weaving machine a reinforcing fiber woven fabric from wefts of reinforcing fiber yarns and warps of reinforcing fibers, the method comprising providing, on a weft supply passage for supplying wefts from a weft bobbin to a weaving machine, a weft unwinding means for laterally unwinding wefts from a weft bobbin, and a weft storing cylinder body for sucking, along with air, part of wefts thus unwound and directed toward the weaving machine and temporarily storing them therein, contactingly supporting wefts, minimized in generation of twist by means of lateral unwinding, by a weft contacting means provided in the weft storing cylinder body while being stored in the weft storing cylinder, and preventing the generation of twist of wefts being stored by this supporting; a production device therefor; and a reinforcing fiber woven fabric produced therefrom.
摘要:
This weft insertion system includes at least one rapier (6, 8) provided with weft yarn clamping means (622, 822) for drawing a weft yarn (202) and a reed (2) provided with dents (22) made of a magnetic material. The rapier (6,8) is equipped with magnetic means for exerting an attractive magnetic effort (E, E') between this rapier and the dents of the reed. The reed (2) advantageously has a variable magnetic permeability along its longitudinal axis (X2). The rapier (6, 8) has a lateral face (8262) oriented towards the reed (2) and the magnetic means have a direction of polarization perpendicular to the direction of travel (X6, X8) of the rapier and secant with this surface (8262).
摘要:
A single-gripper loom (1) comprising: a receiving gripper (5) that is movable along a first sliding guide (6) through a weaving shed (10) from and to a gripping position (P2) outside the weaving shed (10) or close to a first opening thereof (10b) wherein said receiving gripper (5) receives one or more weft threads (2, 3), a weft selector (8), a weft feeder (12) to transfer the weft threads (2, 3) from the selector (8) to the receiving gripper (5), movable along a second sliding guide (7), between an intercepting position (P1) of the weft threads (2, 3), outside the weaving shed, and the gripping position (P2) wherein the receiving gripper (5) receives the weft threads (2, 3) from the weft feeder (12).
摘要:
In a rapier weaving machine, a device (16) is provided for selecting and feeding weft yarns (14), which contains a number of yarn feeders (19) that can be displaced out of a position of rest (A) and into a working position (B). These yarn feeders, in working position (B), lay a weft yarn, which extends between a supplying device and a selvage, around a diverting edge (31), which is placed between the selvage and the feeders and which runs at least approximately in the direction of motion of the gripper (11) so that the gripper grips this section (14a) of the weft yarn (14) between the diverting edge (31) and the feeders (19).