摘要:
A yarn creel assembly includes a vertical frame, a plurality of vertically spaced package holders, and a vertically disposed arcuate yarn guide. The package holders are mounted on the frame and adapted for carrying respective yarn packages, whereby a tail end of a first yarn package is attached to a head end of a second yarn package. The arcuate yarn guide extends between adjacent package holders, and is adapted for guiding a moving end of yarn drawn from an emptying first yarn package and transitioning to a full second yarn package.
摘要:
An apparatus for manufacturing textiles includes a creel having mounted thereon a plurality of regenerating yarn packages and a yarn extension device having a first plurality of inputs each coupled to a strand of yarn from one of the plurality of yarn packages, a second plurality of inputs each coupled to a strand of yarn from one of the plurality of regenerating yarn packages, and a yarn joining device operative to join a first strand of yarn from one of the first plurality of inputs to a second strand of yarn from one of the second plurality of inputs to create a joined strand of yarn.
摘要:
A yarn creel assembly includes a vertical frame, a plurality of vertically spaced package holders, and a vertically disposed arcuate yarn guide. The package holders are mounted on the frame and adapted for carrying respective yarn packages, whereby a tail end of a first yarn package is attached to a head end of a second yarn package. The arcuate yarn guide extends between adjacent package holders, and is adapted for guiding a moving end of yarn drawn from an emptying first yarn package and transitioning to a full second yarn package.
摘要:
An overend unwind system for unwinding tacky elastomeric fiber threads such as uncoated spandex thread, capturing the ballooning affect of the thread as the thread leaves the spool, applying a first-stage tension control on the thread adjacent where the thread leaves the spool, feeding the unwound thread to a nip in a downstream process, and applying a final tension increment to the thread adjacent where the thread enters the downstream process. All thread guide surfaces encountered by the thread after leaving the spool, and while the thread is under designed operating tension, are moving surfaces, such that the tensioned thread thereby experiences a reduced level of drag as the thread traverses its path of travel from the spool to the downstream process.
摘要:
An apparatus and method for winding a sheet of aligned parallel yarns onto a beam is described. The beam winder utilizes a circularly arced yarn spool rack that feeds each yarn to an alignment comb through associated guide tubes. The distance between each spool of yarn and the alignment comb is substantially the same for all spools of yarn, thereby equalizing the force necessary to pull them to the comb. Next, the aligned sheet of material is preshrunk using heated rollers and wound onto a beam. Multiple speed controlled stepper motors are utilized to maintain a constant low level of tension in the sheet during the shrinking process. After shrinkage, the tension level of the yarn sheet is increased as it is wrapped onto the beam. A turntable that supports two or more beams is provided to facilitate the rapid switching of beams once one beam has become full.
摘要:
A creel has a frame provided with a plurality of parallel and longitudinally extending rows of holders each adapted to carry a respective filament-carrying bobbin with the holders of each row longitudinally staggered relative to the holders of adjacent rows and defining nonstraight gaps with the holders of the adjacent rows. Respective eyes are aligned transversely of the rows with the holders and filaments pass in a transverse direction from the bobbins to and through the respective eyes. A respective longitudinally extending and nonstraight guide spaced transversely in the direction from the bobbins between the bobbins and the eyes extends parallel to the rows and are each formed level with each holder of the respective rows with an arcuate section directed toward the holders of the respective rows and alignable in a first position in the transverse direction with the gaps between the bobbins.
摘要:
A yarn creel 20 includes vertical ducts 27 having openings 28 therein through which air is directed towards the upper surfaces of yarn cones 22 mounted on pins 21. Yarn drawn off from the cones 22 exits the creel 20 via tubes 23 whose entrance ends 24 are contained within a further duct 25, the duct 25 having slots 26 through which air is drawn from the interior of the creel 20. A fan 30 circulates this air so that it is re-emitted from the openings 28 in the duct 27. A continuous air stream is thus created over those points which are most susceptible to accumulation of lint. In an alternative embodiment, the yarn tubes extend with clearance through openings in the duct so that their entrance ends are disposed externally of the duct but close to those openings.
摘要:
A creel for directly supplying twisted yarns to a machine (13) such as a loom or warper from a plurality of yarn bobbins (3) arranged on a creel (1) for holding non-twisted yarn (2). Two banks of bobbins (3), optionally contrarotate at a predetermined speed to respectively provide "S-twisted" and "Z-twisted" yarn streams (4) having a desired twist number. The bobbins (3) are disposed on a plurality of spindles (5) that are driven by suitable drives (6). A bobbin attachment (7) is mounted at a free end of each bobbin (3) and fixedly supported on the spindle (5). A yarn storage (8) is provided on the attachment (7) and includes a yarn adjustment ring (9) for providing yarn delivery in a stable manner under appropriate tension. Once the yarn has passed the yarn storage (8) and yarn adjustment ring (9), a desired twist is imparted to the yarn (2), and twisted yarn (4) is delivered to the machine (13).
摘要:
A package transfer apparatus comprising flappers which are juxtaposed at a travel start position of a package changing robot having attaching arms for supporting and attaching bobbin ends of packages to pegs of a creel, and are circulated while putting thereon packages supplied from a package supply section, and a tilting mechanism for tilting the flappers to transfer the package to the attaching arms.
摘要:
Clutches in rotating drives of spools feeding threads to a weaving or knitting machine are disengaged when respective gravity-biased travelling compensating pulleys reach their lower limits and are reengaged when the respective pulleys reach their upper limits. The variable loops of thread formed by the compensating pulleys compensate for different speeds of thread take up by the machine.