摘要:
A make-ready unit for making a thread end ready preparatory to connecting it with another thread end in a thread splicing device, the make-ready unit having a thread splicing device, the make-ready unit having a thread channel formed in a hollow body and traversible by a gas flow produced by injected gas, the thread channel being open at both ends for receiving the thread end transitorily therein, including a pressure-gas guiding device formed as a first ring channel surrounding the hollow body and having at least one pressure-gas supply location, the thread channel being formed with a thread inlet end through which the thread end is received and having a funnel-shaped flaring portion at the thread inlet end extending from a main cylindrical part of the thread channel, and a likewise funnel-shaped cover formed with a central opening and covering the funnel-shaped flaring portion of the thread channel in such manner that a second ring channel defined by conical surfaces extends from the first ring channel to the main cylindrical part of the thread channel.
摘要:
Thread splicing device, including a stationary base body having a first compressed-air canal formed therein, a splicing head being interchangeably connected to the base body, the splicing head having a second compressed-air canal formed therein being in communication with the first compressed-air canal formed in the base body, the splicing head having a plurality of air discharge nozzles formed therein being in communication with the second compressed-air canal formed in the splicing head, and the splicing head having a splicing chamber formed therein being in communication with the air discharge nozzles formed in the splicing head, the splicing chamber including a selectively coverable longitudinal slot for inserting and joining threads.
摘要:
Thread splicing device, including a stationary base body having a compressed air conduction channel formed therein, a splicing head being exchangeably connected to the base body and having a splicing chamber for inserting and joining threads being formed therein, the splicing head having a compressed air conduction channel being formed therein in communication with the compressed air conduction channel in the base body and terminating in the splicing chamber, and the splicing head having at least one air outlet slit being formed therein at an inclination relative to the longitudinal axis of the splicing chamber and being in connection with the compressed air conduction channel formed therein at the splicing chamber, and a cover for temporarily covering the splicing chamber.
摘要:
A compressed-air thread splicing device for producing a knotless thread connection by splicing, the device having a splicing channel for receiving therein threads to be spliced to one another, the splicing channel being formed with at least one compressed-air injection opening and affording at least one of a plurality of operations to be performed on the fibers of the threads consisting of tangling, hooking, whirling and entwining the thread fibers mutually includes a first device for forming a thread guide contour edge at one end of the splicing channel, and a second device for forming a thread guide contour edge at the other end of the splicing channel, the thread guide contour edges partly covering a respective outlet and inlet of the splicing channel, and a controllable device for holding at least end fibers of ends of the threads in friction contact with at least one of the thread guiding contour edges during the splicing operation.
摘要:
Method of producing a knot-free thread connection by splicing, which includes mixing, alternately interlocking and anchoring individual fibers of the threads to be joined to each other in a first pre-splicing operation, and subsequently further and finally intertwining and anchoring the threads to each other in a separate finish-splicing operation, and an apparatus for carrying out the method.
摘要:
Thread splicing device, including a stationary base body having a first compressed-air canal formed therein, a splicing head being interchangeably connected to the base body, the splicing head having a second compressed-air canal formed therein being in communication with the first compressed-air canal formed in the base body and the splicing head having a splicing chamber formed therein being in communication with the second compressed-air canal formed in the splicing head, the splicing chamber including a selectively coverable longitudinal slot for inserting and joining threads, the slot having a flat slot bottom and a substantially prismoidal cross section being modified in accordance with specifications of the threads to be spliced.
摘要:
Splicing assembly, including a splicing device having a pneumatic thread splicer for joining an upper thread to a lower thread and a testing device for monitoring the tensile strength of the splice.
摘要:
A splicing head for a compressed air yarn splicing device has a splicing chamber with a yarn insertion slot opening thereinto and an arrangement by which a pair of compressed air entrance openings may be adjustabley located at differing dispositions with respect to the splicing chamber so that differing splicing air vortices may be selectively generated within the splicing chamber as required for differing yarn characteristics. A common compressed air supply with a single control valve is provided for supplying compressed splicing air to each entrance opening. In one embodiment, a plurality of entrance openings are formed in the splicing head and a shiftable slide plate having a pair of compatible openings enables selective communication between the compressed air supply and the splicing chamber through alternate pairs of the plural entrance openings. In another embodiment, a pair of the entrance openings are formed in a shiftable member mounted to the splicing head for adjustable disposition of the openings relative to the splicing chamber. The splicing head thereby eliminates the need for a plurality of interchangeable specialized splicing heads.
摘要:
An automatic splicer for spun yarn, including open end spun yarn. Opposite yarn ends for splicing are inserted in opposed yarn clamping devices, adjacent yarn loop pulling devices, in a splicing slot of a splicing chamber, adjacent mechanical combing devices and in yarn severing devices. Excess yarn is cut from the yarn ends by the yarn severing devices at a predetermined distance from the splicing slot and the yarn loop pulling devices are advanced to pull the ends of the yarns to the combing devices at which air is applied to the yarn ends to direct the yarn ends to the combing devices. The yarn loop pulling devices are then partially retracted to feed the yarn ends into the combing devices at a controlled rate of feed for combing the yarn ends progressively from their ends to a length corresponding approximately to the length of the subsequent splice. The yarn loop pulling devices are then advanced further to withdraw the yarn ends from the clamping devices and into alignment in the splicing slot in which compressed air is applied to splice the yarn ends. The combing devices are rollers with needle clothing and they may be driven by the force of the air that is applied to the yarn ends to direct the yarn ends to the combing devices. Yarn feed slots may be formed in the splicing chamber extending transversely from the splicing slot to combing devices, in which case the severing and application of air for directing the yarn ends may be performed sequentially for the two yarns to avoid both yarn ends being drawn into the same feed slot.
摘要:
Device for tying a first thread to a second thread by splicing with pressure gas, the device having a splicing chamber formed with an elongated slot for inserting and tying the threads, at least one pressure-gas channel terminating in an interior space of the splicing chamber, a thread regulator movable from a thread take-up position to a thread delivery position for laying the thread into the elongated slot of the splicing chamber, and controllable parts including thread severing devices for separating ends of the threads, a controllable and adjustable pressure-gas dosing device connected to the pressure-gas channel, a device disposed above the splicing chamber for taking up the thread end of the second thread, a device disposed below the splicing chamber for taking up the thread end of the first thread, a controllable thread gripper for the first thread, and a controllable thread gripper for the second thread, including an opening device in the thread gripper of the second thread, and the pressure-gas channel terminating eccentrically in the interior space of the splicing chamber for forming a vortex.