The device (1) comprises a first roller (3) rotatable about a first rotation axis (3A) and a second roller (5) rotatable about a second rotation axis (5A), parallel to the first rotation axis (3A). The two are in mutual contact and define between them a yarn passage (7) and at least of them is motorized. The device further comprises 5 guide members (9) defining a feed path of at least a yarn (F; F1, F2, F3, F4), associated with the yarn passage (7) between the first roller (3) and the second roller (5). The guide members (9; 13) are movable with respect to the rollers (3, 5) in a direction substantially parallel to the first rotation axis (3A) and to the second rotation axis (5A), so as to take the yarn path temporarily outside the mutual contact 10 area between the rollers.
D02G 1/16 - Producing crimped or curled fibres, filaments, yarns or threads, giving them latent characteristics using jets or streams of turbulent gases, e.g. air, steam
D01H 5/36 - Regulating or varying draft according to a pre-arranged pattern, e.g. to produce slubs
D01H 7/92 - Spinning or twisting arrangements for imparting transient twist
D02G 1/00 - Producing crimped or curled fibres, filaments, yarns or threads, giving them latent characteristics
D02J 1/06 - Imparting irregularity, e.g. slubbing or other non-uniform features, e.g. high- and low-shrinkage or strengthened and weakened sections
D02J 1/08 - Interlacing constituent filaments without breakage thereof, e.g. by use of turbulent air streams
The device (1) comprises a first roller (3) rotatable about a first rotation axis (3A) and a second roller (5) rotatable about a second rotation axis (5A), parallel to the first rotation axis (3A). The two are in mutual contact and define between them a yarn passage (7) and at least of them is motorized. The device further comprises 5 guide members (9) defining a feed path of at least a yarn (F; F1, F2, F3, F4), associated with the yarn passage (7) between the first roller (3) and the second roller (5). The guide members (9; 13) are movable with respect to the rollers (3, 5) in a direction substantially parallel to the first rotation axis (3A) and to the second rotation axis (5A), so as to take the yarn path temporarily outside the mutual contact 10 area between the rollers.
D02G 1/16 - Producing crimped or curled fibres, filaments, yarns or threads, giving them latent characteristics using jets or streams of turbulent gases, e.g. air, steam
D02J 1/06 - Imparting irregularity, e.g. slubbing or other non-uniform features, e.g. high- and low-shrinkage or strengthened and weakened sections
D02J 1/08 - Interlacing constituent filaments without breakage thereof, e.g. by use of turbulent air streams
D02G 1/00 - Producing crimped or curled fibres, filaments, yarns or threads, giving them latent characteristics
D01H 5/36 - Regulating or varying draft according to a pre-arranged pattern, e.g. to produce slubs
3.
METHOD AND DEVICE FOR THE PRODUCTION OF A SLUB YARN, AND YARN PRODUCED
The device (1) comprises: a first drafting and false-twist texturing unit (2A); a second drafting and false-twist texturing unit (2B); a first slubbing unit (25); a second slubbing unit (27); an interlacing jet (31) for joining a first yam (F1), a second yam (F2) and a core yam (FE) together, arranged downstream of the first slubbing unit (25) and of the second slubbing unit (27).
D02G 1/02 - Producing crimped or curled fibres, filaments, yarns or threads, giving them latent characteristics by twisting, fixing the twist and backtwisting, i.e . by imparting false twist
D02G 1/16 - Producing crimped or curled fibres, filaments, yarns or threads, giving them latent characteristics using jets or streams of turbulent gases, e.g. air, steam
Machine for the production of a composite yarn (F) having a core yarn (FC), an effect yarn (FE) and an elastomer yarn (FL) combined together comprising: a core yarn feeding path; an effect yarn feeding path and an elastomer yarn feeding path. The machine further comprises a texturing and interlacing jet (51), where the paths of the core yarn (FC), the effect yarn (FE) and the elastomer yarn (FL) converge. The texturing and interlacing jet is configured and arranged to join together, in a single operation, the core yarn, the effect yarn and the elastomer yarn.
D02G 1/02 - Producing crimped or curled fibres, filaments, yarns or threads, giving them latent characteristics by twisting, fixing the twist and backtwisting, i.e . by imparting false twist
D02G 1/16 - Producing crimped or curled fibres, filaments, yarns or threads, giving them latent characteristics using jets or streams of turbulent gases, e.g. air, steam
5.
MACHINE FOR PRODUCING BOBBINS OF YARN WITH SUPERIMPOSED WINDING POSITIONS WITH MULTIPLE MOTOR DRIVES
The machine comprises a plurality of winding stations (1A) mutually aligned on at least one operating front. Each winding station comprises at least one feed zone (15) for feeding a plurality of yarns (F1; FC) toward a corresponding underlying plurality of mutually superimposed winding positions (17). Each winding position comprises a support (41) for a tube on which one of said yarns is wound to form a bobbin (B3), a motorized winding roller (43) arranged to be in contact with the bobbin being wound,and a traversing device (45), to distribute the yarn in helical turns around the bobbin being formed. Moreover, each winding station comprises at least four mutually superimposed winding positions(17A-17D), with four paths for respective yarns from the feed zone(15) to the winding positions. Further, the four winding positions are divided into two pairs,each of which comprises a respective motor drive system, separate and independent with respect to the other pair.
The module comprises a plurality of winding stations (1A) mutually aligned on at least one operating front. Each winding station comprises at least one feed zone (15) for feeding a plurality of yarns (F1; FC) toward a corresponding underlying plurality of mutually superimposed winding positions (17). Each winding position comprises a support (41) for a tube on which one of said yarns is wound to form a bobbin (B3), a motorized winding roller (43) in contact with the bobbin being wound, and a traversing device (45), to distribute the yarn in helical turns around the bobbin being formed. The module comprises lateral side members (111) substantially vertical and orthogonal to the direction of alignment of the winding stations. There are also provided longitudinal beams (125) parallel to the direction of alignment of the winding stations, which join the two lateral side members (111), and an intermediate vertical structure for facilitating assembly (135), arranged between the two lateral side members(111).
The texturing and interlacing machine for processing synthetic yarns comprises: at least one supporting and unwinding member for at least one bobbin (B1) of untreated yarn to be textured; at least one supporting and unwinding member (31) for a bobbin (B3) of elastomer; a feed path, for at least one yarn (F1) to be textured; along the feed path for the yarn to be textured, in sequence along the direction of feed of the yarn to be textured: a stretching roller (5), a first oven (7), a cooling area (9), a yarn twisting unit (11), a master roller (13), a second oven (15), a stabilizing roller (21), an interlacing device (23) and an overfeed roller (25).
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