Patent classifications
D03C7/06
Weaving loom for implementing a method for weaving a fabric and near-net shape fabric made on such a weaving loom
A weaving loom produces a fabric (F), with warp yarns and in-woven weft yarns. The weaving loom includes a warp delivery unit, heddles to form a shed, a shedding mechanism for moving each heddle vertically along a vertical path, a weft insertion means for inserting each weft yarn in a shed and for releasing each weft yarn at a given location along a weft axis, and a weft delivery means for delivering each weft yarn to the weft insertion means. The weaving loom also includes a programmable clamping means for picking up a first end of each weft yarn and for releasing each weft yarn at any predetermined position along the weft axis, and a programmable mechanism including actuators for semi-closing the shed around the inserted weft yarn at any predetermined position along the weft axis.
Weaving loom for implementing a method for weaving a fabric and near-net shape fabric made on such a weaving loom
A weaving loom produces a fabric (F), with warp yarns and in-woven weft yarns. The weaving loom includes a warp delivery unit, heddles to form a shed, a shedding mechanism for moving each heddle vertically along a vertical path, a weft insertion means for inserting each weft yarn in a shed and for releasing each weft yarn at a given location along a weft axis, and a weft delivery means for delivering each weft yarn to the weft insertion means. The weaving loom also includes a programmable clamping means for picking up a first end of each weft yarn and for releasing each weft yarn at any predetermined position along the weft axis, and a programmable mechanism including actuators for semi-closing the shed around the inserted weft yarn at any predetermined position along the weft axis.
WEAVING LOOM FOR IMPLEMENTING A METHOD FOR WEAVING A FABRIC AND NEAR-NET SHAPE FABRIC MADE ON SUCH A WEAVING LOOM
A loom allows a implementing a method for weaving a fabric (F), with warp yarns (412, 414, 422, 424) and inwoven weft yarns (61, 62, W1-W5). The loom (2) comprises a warp delivery unit (8); heddles (14) for moving warp yarns in order to form a shed; a mechanism (12) for moving (F1) each heddle vertically along a vertical path; weft insertion means (21, 22) for inserting each weft yarn in a shed (S1, S2) and for releasing the weft yarn at a given location along a weft axis (Y1, Y2); and weft delivery means (28) for delivering weft yarns (61, 62, W1-W5) to the weft insertion means, this method comprising, for at least two consecutive picks, at least the following steps consisting in a) opening the shed (S1, S2); b) picking, by the weft insertion means (21, 22), of a first end (612, 622) of a weft yarn (61, 62, W1-W5) presented by the weft delivery means (28); c) drawing (A3) the weft yarn into the shed, along the weft axis (Y1, Y2); d) releasing the weft yarn at the predetermined position along the weft axis; e) withdrawing the insertion means from the shed; and f) beating-up the weft yarn wherein, during step c), the shed is closed around the inserted weft yarn (61, 62), by moving warp yarns (412, 414, 422, 424) of a predetermined group (G4, G4) of warp yarns to a semi-closed position. The loom also comprises programmable clamping means (24) for picking up the first end (612,622) of the weft yarn (61, 62, W1-W5) at step b), for drawing the weft yarn into the shed at step c) and for releasing the weft yarn at step d), at any predetermined position along the weft axis (Y1, Y2) and a programmable mechanism (12) including actuators for semi-closing the shed around the inserted weft yarn during step c), at any predetermined position along the weft axis.
WEAVING LOOM FOR IMPLEMENTING A METHOD FOR WEAVING A FABRIC AND NEAR-NET SHAPE FABRIC MADE ON SUCH A WEAVING LOOM
A loom allows a implementing a method for weaving a fabric (F), with warp yarns (412, 414, 422, 424) and inwoven weft yarns (61, 62, W1-W5). The loom (2) comprises a warp delivery unit (8); heddles (14) for moving warp yarns in order to form a shed; a mechanism (12) for moving (F1) each heddle vertically along a vertical path; weft insertion means (21, 22) for inserting each weft yarn in a shed (S1, S2) and for releasing the weft yarn at a given location along a weft axis (Y1, Y2); and weft delivery means (28) for delivering weft yarns (61, 62, W1-W5) to the weft insertion means, this method comprising, for at least two consecutive picks, at least the following steps consisting in a) opening the shed (S1, S2); b) picking, by the weft insertion means (21, 22), of a first end (612, 622) of a weft yarn (61, 62, W1-W5) presented by the weft delivery means (28); c) drawing (A3) the weft yarn into the shed, along the weft axis (Y1, Y2); d) releasing the weft yarn at the predetermined position along the weft axis; e) withdrawing the insertion means from the shed; and f) beating-up the weft yarn wherein, during step c), the shed is closed around the inserted weft yarn (61, 62), by moving warp yarns (412, 414, 422, 424) of a predetermined group (G4, G4) of warp yarns to a semi-closed position. The loom also comprises programmable clamping means (24) for picking up the first end (612,622) of the weft yarn (61, 62, W1-W5) at step b), for drawing the weft yarn into the shed at step c) and for releasing the weft yarn at step d), at any predetermined position along the weft axis (Y1, Y2) and a programmable mechanism (12) including actuators for semi-closing the shed around the inserted weft yarn during step c), at any predetermined position along the weft axis.
Method for weaving a fabric, near-net shape fabric woven via such a method and weaving loom for implementing this method
A method for weaving a fabric (F), with warp yarns (412, 414, 422, 424) and inwoven weft yarns (61, 62, W1-W5), on a loom (2) which comprises a warp delivery unit (8); heddles (14) for moving warp yarns in order to form a shed; a mechanism (12) for moving (F1) each heddle vertically along a vertical path; weft insertion means (21, 22) for inserting each weft yarn in a shed (S1, S2) and for releasing the weft yarn at a given location along a weft axis (Y1, Y2); and weft delivery means (28) for delivering weft yarns (61, 62, W1-W5) to the weft insertion means, this method comprising, for at least two consecutive picks, at least the following steps consisting in a) opening the shed (S1, S2); b) picking, by the weft insertion means (21, 22), of a first end (612, 622) of a weft yarn (61, 62, W1-W5) presented by the weft delivery means (28); c) drawing (A3) the weft yarn into the shed, along the weft axis (Y1, Y2); d) releasing the weft yarn at the predetermined position along the weft axis; e) withdrawing the insertion means from the shed; and f) beating-up the weft yarn wherein, during step c), the shed is closed around the inserted weft yarn (61, 62), by moving warp yarns (412, 414, 422, 424) of a predetermined group (G4, G4) of warp yarns to a semi-closed position.
Method for weaving a fabric, near-net shape fabric woven via such a method and weaving loom for implementing this method
A method for weaving a fabric (F), with warp yarns (412, 414, 422, 424) and inwoven weft yarns (61, 62, W1-W5), on a loom (2) which comprises a warp delivery unit (8); heddles (14) for moving warp yarns in order to form a shed; a mechanism (12) for moving (F1) each heddle vertically along a vertical path; weft insertion means (21, 22) for inserting each weft yarn in a shed (S1, S2) and for releasing the weft yarn at a given location along a weft axis (Y1, Y2); and weft delivery means (28) for delivering weft yarns (61, 62, W1-W5) to the weft insertion means, this method comprising, for at least two consecutive picks, at least the following steps consisting in a) opening the shed (S1, S2); b) picking, by the weft insertion means (21, 22), of a first end (612, 622) of a weft yarn (61, 62, W1-W5) presented by the weft delivery means (28); c) drawing (A3) the weft yarn into the shed, along the weft axis (Y1, Y2); d) releasing the weft yarn at the predetermined position along the weft axis; e) withdrawing the insertion means from the shed; and f) beating-up the weft yarn wherein, during step c), the shed is closed around the inserted weft yarn (61, 62), by moving warp yarns (412, 414, 422, 424) of a predetermined group (G4, G4) of warp yarns to a semi-closed position.
Selvedge forming device for a weft thread
Weaving machine, device and method for tucking a thread end (11, 12, 24, 25) of a weft thread (10) into a subsequent shed (15), which thread end (11,12,24,25) extends outside a shed (15), wherein thread ends (11, 12, 24, 25) are tucked into a subsequent shed (15) by a tucking device (13,14,28,29), wherein a thread end (11, 12, 24, 25) is selectively moved by a moveable arm (9, 19), and wherein the thread end (11,12,24,25) moved by the moveable arm (9, 19) beyond the separator element (8, 18) is separated by the separator element (8, 18) from the working area of the tucking device (13, 14, 28, 29).
Selvedge forming device for a weft thread
Weaving machine, device and method for tucking a thread end (11, 12, 24, 25) of a weft thread (10) into a subsequent shed (15), which thread end (11,12,24,25) extends outside a shed (15), wherein thread ends (11, 12, 24, 25) are tucked into a subsequent shed (15) by a tucking device (13,14,28,29), wherein a thread end (11, 12, 24, 25) is selectively moved by a moveable arm (9, 19), and wherein the thread end (11,12,24,25) moved by the moveable arm (9, 19) beyond the separator element (8, 18) is separated by the separator element (8, 18) from the working area of the tucking device (13, 14, 28, 29).
SELVEDGE FORMING DEVICE FOR A WEFT THREAD
Weaving machine, device and method for tucking a thread end (11, 12, 24, 25) of a weft thread (10) into a subsequent shed (15), which thread end (11,12,24,25) extends outside a shed (15), wherein thread ends (11, 12, 24, 25) are tucked into a subsequent shed (15) by means of a tucking device (13,14,28,29), wherein a thread end (11, 12, 24, 25) is selectively moved by means of a moveable arm (9, 19), and wherein the thread end (11,12,24,25) moved by the moveable arm (9, 19) beyond the separator element (8, 18) is separated by the separator element (8, 18) from the working area of the tucking device (13, 14, 28, 29).
METHOD FOR WEAVING A FABRIC, NEAR-NET SHAPE FABRIC WOVEN VIA SUCH A METHOD AND WEAVING LOOM FOR IMPLEMENTING THIS METHOD
A method for weaving a fabric (F), with warp yarns (412, 414, 422, 424) and inwoven weft yarns (61, 62, W1-W5), on a loom (2) which comprises a warp delivery unit (8); heddles (14) for moving warp yarns in order to form a shed; a mechanism (12) for moving (F1) each heddle vertically along a vertical path; weft insertion means (21, 22) for inserting each weft yarn in a shed (S1, S2) and for releasing the weft yarn at a given location along a weft axis (Y1, Y2); and weft delivery means (28) for delivering weft yarns (61, 62, W1-W5) to the weft insertion means, this method comprising, for at least two consecutive picks, at least the following steps consisting in a) opening the shed (S1, S2); b) picking, by the weft insertion means (21, 22), of a first end (612, 622) of a weft yarn (61, 62, W1-W5) presented by the weft delivery means (28); c) drawing (A3) the weft yarn into the shed, along the weft axis (Y1, Y2); d) releasing the weft yarn at the predetermined position along the weft axis; e) withdrawing the insertion means from the shed; and f) beating-up the weft yarn wherein, during step c), the shed is closed around the inserted weft yarn (61, 62), by moving warp yarns (412, 414, 422, 424) of a predetermined group (G4, G4) of warp yarns to a semi-closed position.