摘要:
A jacquard device (1) for selectively shifting thread-guides (2) in a knitting machine, comprising at least one supporting element (3) provided with a plurality of housing seats (4) for a plurality of thread-guides (2), a plurality of thread-guides (2) mounted onto the supporting element (3) and having at least one thread-guide portion (2b) selectively moving at least between a first and a second operating position and apt to guide a thread (7), at least one actuating element (12) for each thread-guide (2) for shifting the thread-guide portions (2b) of the thread-guides (2) between the first operating position and the second operating position, and at least one electropneumatic actuating device (15) operatively connected to the actuating element (12) for shifting the thread-guide portion (2b) of the thread-guides (2).
摘要:
This winding-apparatus comprises a spindle or collet on which strand or roving is wound and an oscillating mechanism carrying a traverse guide and a follower. The follower is in contact with the circumference and activates an excitation element which continuously acts on a hydraulic or an electric motor which operates the oscillating apparatus. In this way, the oscillating apparatus moves progressively away and by a continuous motion from the spindle as the spool grows. The follower 14 is balanced around an oscillation axis Z-Z to exert a minimal force on the spool. The application disclosed is the winding of strand formed of glass filaments coming from a bushing.
摘要:
A control device for the winding of yarn onto a cop and particularly for an actuator controlling the relative motions between the cop being wound and winding means, said actuator periodically reversing its motion, wherein said actuator is linked either to support means bearing two linearly extended and adjustable stop means or to a control member therefor, whereby said actuator is controlled to reverse its motion by the alternated engagement of the control member with said stop means, whereby the point of engagement of the stop means with the control member is adjustably controlled; and in particular which enables variously wound cops to be formed without requiring the replacement of parts.
摘要:
A drum gear carrying a ratchet is coupled to the chain drum of a builder motion by a one way clutch permitting movement of the chain drum and drum gear in one direction until released when a predetermined amount of chain is let off. When released and the weight removed from the drum as a result of bearing down the ring rail, the drum is free to turn allowing the rewinding of the chain responsive to a spring which was wound as the chain is let off. After rewinding the chain, the ratchet is engaged with respect to the chain drum preventing premature rewinding of the chain, if for any reason the weight is taken off the rail as when the rail is depressed to permit restarting the frame.
摘要:
Winding machine for yarns, tapes, etc. with a traversing yarn guide embodying a toggle lever having one arm slidably guided in a pivotable guide rail, the pivotal position of which is variable in response to increasing winding package diameter and/or periodic rhythmic impulses of a reciprocating nature and disengageable clutch means connecting said guide rail and adjusting members movable in response to increasing package diameter, whereby flat-ended packages or conical-ended packages may be formed.
摘要:
A winding machine, such as a Unifil loom winder, manufactured by Leesona Corporation, Warwick, Rhode Island 02887, has a yarn traversing member releasably threadedly secured to a traverse rod which is reciprocated and rotated to provide a to-and-fro traversing motion and a builder motion to the traversing member and to a yarn advancing through a guide eye of the traversing member as the yarn is wound onto a rotating bobbin. To retain the traversing member operatively threadedly engaged with the traverse rod throughout reversal of the traversing member at relatively high-winding speeds, the traversing member has a pair of threaded jaws releasably held in positive threaded engagement with the traverse rod during winding. In one embodiment the jaws are urged into resilient engagement with the traverse rod in such a manner that should engagement of one of the jaws loosen its threaded engagement with the rod, the other jaw is more firmly threadedly mated with the rod threads. In another embodiment, the jaws are held in operatively fixed relationship with each other when they are operatively threadedly mated with the traverse rod. Upon completion of winding of a bobbin at a predetermined, adjustable position of the traversing member, the jaws are automatically opened to release the traversing member from the traverse rod. A retriever is automatically inserted between the opened jaws and the jaws are then automatically closed onto the retriever and held out of engagement with the traverse rod as a retriever carrier returns the traversing member to its starting point. While en route to the starting point, a cutter is operated to cut the yarn between the traversing member and the filled bobbin which has been doffed. A flap on the retriever carrier clamps the cut end of the yarn from the supply and engages the yarn for winding onto an empty bobbin which has been donned into the winder. The retriever carrier and the cutter are then returned to their original positions and the cycle is completed. Optionally, a tip bunch may be wound on the filled bobbin.
摘要:
A frame comprising an oscillating shaft with means to gradually move the shaft in a vertical direction thereby providing a method of winding thread on a cop tube without imparting undesirable twist to the yarn.