D03C13/00

SHEDDING MECHANISM AND JACQUARD-TYPE WEAVING LOOM EQUIPPED WITH SUCH A MECHANISM
20220195641 · 2022-06-23 ·

This shedding mechanism comprises a housing and a movable hook which can be retained by a selection device comprising at least one electromagnet (100) immobilized in the housing and which includes a ferromagnetic core (102) comprising first and second pole faces (S122, S124). The electromagnet (100) also comprises a non-magnetic portion (104, 108) and a retaining lever configured to retain the movable hook. The retaining lever is pivotally mounted about an oscillation axis (A144) and comprises a ferromagnetic armature (202) that interacts magnetically with the first and second pole faces. The non-magnetic portion of the electromagnet comprises a surface (S144) for guiding the pivoting of the retaining lever. This guide surface cooperates with the retaining lever in a direction radial to the oscillation axis (A144) between a remote position and a contact position. The guide surface (S144) is cylindrical with a circular base, centered on the oscillation axis.

SHEDDING MECHANISM AND JACQUARD-TYPE WEAVING LOOM EQUIPPED WITH SUCH A MECHANISM
20220195641 · 2022-06-23 ·

This shedding mechanism comprises a housing and a movable hook which can be retained by a selection device comprising at least one electromagnet (100) immobilized in the housing and which includes a ferromagnetic core (102) comprising first and second pole faces (S122, S124). The electromagnet (100) also comprises a non-magnetic portion (104, 108) and a retaining lever configured to retain the movable hook. The retaining lever is pivotally mounted about an oscillation axis (A144) and comprises a ferromagnetic armature (202) that interacts magnetically with the first and second pole faces. The non-magnetic portion of the electromagnet comprises a surface (S144) for guiding the pivoting of the retaining lever. This guide surface cooperates with the retaining lever in a direction radial to the oscillation axis (A144) between a remote position and a contact position. The guide surface (S144) is cylindrical with a circular base, centered on the oscillation axis.

Circular loom with orbit path

A circular loom for weaving a weaving core along a weaving axis with at least one shuttle, which comprises a weft thread spool and is movable along a circular orbit path around the weaving core. The orbit path is formed of first track segments arranged one after the other along its circumference and at least one movably arranged or designed guide device is provided, which guides at least one warp thread provided from a warp thread spool on a warp spool device and on which at least a first track segment of the orbit path and at least a second track segment alternatively assignable to the orbit path are arranged and guided, where in the guided absence of the first and second track segment from the orbit path the guided warp thread, crossing the track plane, passes through the orbit path.

SHEDDING METHOD AND APPARATUS USING AIR PRESSURE
20220002918 · 2022-01-06 ·

A method and an apparatus for producing a woven material from tape-like warps and wefts are disclosed, comprising a warp supply source for tape-like warps; a shed forming device to form a shed by said warps; a weft insertion device for inserting tape-like weft in the shed formed by said warps; and a take-up device for taking-up the produced woven material. Each of the warps extend in warp paths between the warp supply source and the take-up device. Further, the shed forming device comprises an air pressure system arranged to apply pressure on the face of at least some of the warps in an intermediate position of the warp paths, between the warp supply source and the take-up device, the applied air pressure being sufficient to displace said at least some warps in essentially the thickness direction of the tape-like warps.

SHEDDING METHOD AND APPARATUS USING AIR PRESSURE
20220002918 · 2022-01-06 ·

A method and an apparatus for producing a woven material from tape-like warps and wefts are disclosed, comprising a warp supply source for tape-like warps; a shed forming device to form a shed by said warps; a weft insertion device for inserting tape-like weft in the shed formed by said warps; and a take-up device for taking-up the produced woven material. Each of the warps extend in warp paths between the warp supply source and the take-up device. Further, the shed forming device comprises an air pressure system arranged to apply pressure on the face of at least some of the warps in an intermediate position of the warp paths, between the warp supply source and the take-up device, the applied air pressure being sufficient to displace said at least some warps in essentially the thickness direction of the tape-like warps.

SYSTEMS AND METHODS FOR CONTINUOUS FABRICATION OF WOVEN COMPOSITE MATERIALS

A machine and method are presented for continuously forming a woven composite with controllable internal fabric geometry. The machine may include one or more spools for dispensing one or more warp filaments, a roller assembly configured to receive a composite weave, a warp rack having warp heads for engaging the warp filaments and vertically adjusting position to dynamically create a weave pattern in response to the insertion of one or more weft filaments by a weft inserter stack.

Selvage yarn shedding apparatus of loom

A selvage yarn shedding apparatus of a loom including two support bodies each having carrier rods configured to support a heddle into which a selvage yarn is inserted and a slide guide having both end portions to which the carrier rods are attached; a drive motor configured to drive in forward-reverse rotations; a support frame including a guide member; and a motion conversion mechanism configured to convert rotation of an output shaft of a drive motor into reciprocating motion in upper-lower direction of each support body. Each of the support bodies includes a connecting part including an extension portion provided above the carrier rod and extending from the slide guide in a longitudinal direction of the carrier rod toward a side where the heddle exists, where the connecting part is configured to connect the slide guide and the motion conversion mechanism each other at the extension portion.

WEAVING LOOM HAVING MOVABLE GUIDE BEAMS
20220298679 · 2022-09-22 ·

A weaving loom for inserting continuous material, or loosely connected material or material in pieces, in which the warp threads run in the downward direction from the warp beam to the cloth beam and herein are individually held by hooks which are anchored in guide beams between the upper warp beams and the lower cloth beam.

WEAVING LOOM HAVING MOVABLE GUIDE BEAMS
20220298679 · 2022-09-22 ·

A weaving loom for inserting continuous material, or loosely connected material or material in pieces, in which the warp threads run in the downward direction from the warp beam to the cloth beam and herein are individually held by hooks which are anchored in guide beams between the upper warp beams and the lower cloth beam.

Circular loom with orbit path

A circular loom for weaving a weaving core with at least one shuttle, which has a weft thread spool and is movable along a circular orbit path around the weaving core. At least one guide device, designed to guide at least one warp thread provided from a warp thread spool on a warp spool device, is movably arranged or designed outside a track plane enclosed by the outer circumference of the circular orbit path, the guided warp thread, crossing the track plane, passing through a recess in the circular orbit path.