508results about "Piercing arrangements" patented technology

A method of assembling an adjustable continuous filament assembly whereby a single length of filament is spliced to form a nonadjustable portion and a single free segment. The single free segment is introduced into the inner core of the nonadjustable portion at a first position. The single free segment is passed through at least a portion of the inner core of the nonadjustable portion. The single free segment is withdrawn from the nonadjustable portion at a second position, thereby forming an adjustable portion secured to the nonadjustable portion and adjustable by the single free segment.

The present invention relates to an automatic spinning new end forming method and its equipment. The roving machine utilizes the coder positioned at the drafting portion position to detect the full-yarn length when the bobbin can be fulled, and makes the roving machine spin to a certain length in low speed, after the roving is spun to a certain length, makes the roving machine operate in low speed, at the moment makes the spindle rail stop lifting movement and makes the yarn be in said height position, winds 2-3 turns of halching and makes the spindle rail be quickly lowered to form large thread pitch wind so as to make the roving do not take-off in its transportation process; changes the speed ratio of flywer and roller so as to reduce roving twist, and obtain undertwisted roving, and when the ultralowering of spindle rail is made to place, the yarn is stretch-broken to produce fuzzy fibre whose length can be suitable for secondary automatic spinning new end formation.

The invention relates to a method and device for automatically and intelligently piecing ring-spun yarn broken-ends with a guiding yarn. In a spinning machine, a combination of a broken ends detection system, a movable type automatic piecing machine, a ring traveller positioning and stop mechanism and a control system formed by a single-chip microcomputer or a PLC is adopted, wherein spinning end breaking signals of every single spindle of the spinning machine are detected in real time through a sensor of the broken ends detection system, and the spinning end breaking signals from the broken ends detection system are received by the single-chip microcomputer or the PLC control system; the spinning end breaking signals are processed by the single-chip microcomputer or the PLC control system and are sent to the movable type automatic piecing machine and the ring traveller positioning stop mechanism, the spinning end breaking signals are received by the ring traveller positioning stop mechanism, a ring traveller controlling the spindle position of the broken ends is stopped and positioned exactly in front of a steel collar ring rail, the movable type automatic piecing machine relates to the steps: receiving the spinning end breaking signals, automatically moving to the spindle position of the broken ends, controlling a spindle with the broken ends, unwinding and guiding a yarn of a spool, clamping the yarn in the ring traveler and a yarn guide, piecing the yarn and a guiding yarn of same quality, same material and same size together, controlling the feeding speed of the guiding yarn, and piecing the yarn and a fiber strand which is outputted by a front roller or a yarn guiding roller of compact spinning together; the unmanned intelligent mechanical operation of piecing the broken ends is realized during the spinning process of the ring-spun yarn.

The invention relates to an automatic jointing robot of a ring throstle and a method. The automatic jointing robot of the ring throstle is applied to the ring throstle and comprises a rack, a right arm assembly, a left arm assembly and a yarn head seeking assembly, wherein the right arm assembly and the left arm assembly are used for cooperating with each other to complete the jointing operation of the ring throstle, the yarn head seeking assembly is used for seeking the broken heads of yarns on the ring throstle, a yarn clamping device assembly is arranged on the right arm assembly, and a catching and locating assembly is arranged on the left arm assembly; the right arm assembly and the left arm assembly are slidably connected with the rack and reciprocatingly move on the rack; the yarn head seeking assembly is fixedly connected to the rack and located between the right arm assembly and the left arm assembly; through the robot, the method that a bobbin is pulled from a spindle to seekthe broken heads is achieved, the reliability of seeking yarn heads is improved, and therefore the total efficiency of jointing is increased; the adopted robot only has two mechanical arms capable offlexibly moving in the vertical direction, the structure is simplified, and the jointing operation can be conveniently conducted in narrow jointing space.

The present invention provides a spinning machine, including a yarn accumulating roller (21), a yarn hooking member, a yarn removing lever (28), a suction pipe (44), and a unit controller. The hooking member can wind a spun yarn (10) around the yarn accumulating roller (21). The yarn removing lever (28) can remove the spun yarn (10) from the yarn hooking member. The suction pipe (44) can catch a yarn end of the spun yarn (10) and includes a twisting nozzle capable of applying twists to the caught spun yarn (10). The unit controller controls the twisting nozzle to operate while the spun yarn (10) caught by the suction pipe (44) is being wound around the yarn accumulating roller (21), and controls the twisting nozzle to stop before the yarn removing lever (28) removes the spun yarn (10) from the yarn hooking member.

A method for optimizing pneumatic connecting line or yarn includes the following steps: lines (12, 15)needed connecting are led into connecting cavity (11) of pneumatic connecting device (10); the lines (12, 15) entering into device (10) are locked; the ends of the lines (12, 15) are cut off; the ends of the lines (12, 15) are untwisted; the lines (12, 15) are dragged on the direction of connecting cavity (11) and cut off, the ends of the lines are open; the connecting is executed by compressing air, wherein, at least one step capable of adjusting measurement to intercept lines (12, 15) by at least two intercepting lever (32, 33) executes on the downstream of leading-points (20, 21) between the leading step and the untwisting step to extend the path of the lines (12, 15) and change the length of the ends of the lines (12, 15) outspread. The invention also relates to a device for executing the method.

An elastic yarn knot-free yarn splicing device equipped with a prismatic splicing head (25), the splicing head has a splicing groove (26), and at least one compressed air injection hole (29) is provided in the groove. The splicing groove (26) receives the yarns to be spliced ​​with each other and enables airflow splicing of the fibers of the yarns. The splicing device (58) is respectively equipped with a clamping device (43; 44) and a yarn cutting device (41; 42). The splicing device (58) includes pretreatment nozzles (53; 54). In addition to the pretreatment of the yarn ends, the two nozzles are also used as an airflow holding device to fix the mutually spliced ​​yarn ends. According to the present invention, on the yarn path between the clamping device (43; 44) and the pre-treatment nozzle (53; 54), a braking device (49; 50) for airflow acting on the yarn is arranged, so that the yarn is sent to the pre-treatment The retraction distance of the nozzles (53;54) is shortened. By means of the yarn splicing device of the present invention, the number of ineffective yarn splices for splicing elastic yarns on a winder or a combined spinning/winding machine can be reduced.

The present invention provides a yarn joining device for joining two yarns (Ya,Yb) with the tail ends (eo) thereof aligned in the same direction. The yarn joining device reduces the size of the joint portion of the yarns even if the yarn joining is successively performed, and also adjusts the yarn joining length, and thereby forms the joint portion of yarns uniformly and reliably. In the yarn joining device for joining tail ends of two yarns with the tail ends aligned in the same direction, loosening and twining of the tail ends of the yarns is performed successively by a single air jet nozzle (2).

Two-for-one twisting spindle having a pneumatically actuated threading device, with a spindle shaft rotatable about a vertical axis partially configured as a hollow shaft with a lower feed bore extending coaxially to the rotational axis, and with an injector element opening into a thread guide channel of a thread guide ring temporarily connectable during threading to a compressed air source. Part of the compressed air feed to the injector element is formed by the feed bore. The compressed air feed comprises a connection element (27) with a curved air channel (26), which connects the feed bore (24) to the injector element (16). The connection element (27) is configured as a separate component and the air channel (26) is adapted to the flow requirements.

A spinning machine includes a spinning device, a winding device, a yarn accumulating roller, a yarn hooking member, and a yarn removing lever. The yarn accumulating roller winds spun yarn around an outer peripheral surface thereof and rotates with the spun yarn wound around to feed the spun yarn from the spinning device while applying tension to the spun yarn. While being engaged with the spun yarn, the yarn hooking member rotates integrally with the yarn accumulating roller, and thus prevents the spun yarn from being unwound from the outer peripheral surface of the yarn accumulating roller. The yarn removing lever is arranged downstream of the yarn hooking member in a yarn transporting direction, and can be moved between a lowered position where the yarn removing lever does not make contact with the spun yarn and a lifted position where the yarn hooking member makes contact with the spun yarn. At the lifted position, the yarn removing lever removes the spun yarn from the yarn hookingmember.

The present invention provides a yarn end drawing device capable of reliably catching and drawing out a yarn end portion without cutting the yarn end portion. In the yarn end drawing device, a suctioning portion (73c), which includes a suction port (73a) and comb teeth (73h) projecting toward the interior of the suction port (73a), is positioned close to the circumferential surface of a wound yarn package, thereby suctioning a yarn end portion on the wound yarn package and hooking the yarn end portion on a comb tooth (73h) to catch and draw out the yarn end portion. The yarn end drawing device includes a yarn end regulating member (73f) for regulating the suctioned yarn end portion so as not to flutter while being bent at the tip of any comb tooth (73h), and the yarn end regulating member (73f) is arranged at the downstream side in the suction direction of the comb teeth (73h).

The invention relates to a yarn splicing device for pneumatically joining yarns, especially elastic yarns, with a splicing body having a vacuum-loadable splicing channel which can be operated by means of a The covering element is closed and, moreover, a support is arranged in the region of the splicing channel, which supports the fixing of the yarn ends. According to the invention, it is provided that the supporting element consists of a spring wire (36) and a cover element (23), wherein the spring wire (36) is positioned in an opposite position in the spliced ​​body (19). In the groove (35) that moves angularly in the splicing channel (20), that is, the yarn ends (31, 32) to be spliced ​​are clamped between the covering element (23) and the spring wire ( 36) Between.

A spinning frame (1) includes a spinning device (9), a yarn clearer (52), a yarn accumulating roller (21), a suction opening (46), a suction device (30), and a unit controller (60). The spinning device produces spun yarn by applying twists to a fiber bundle. The yarn clearer (52) is arranged downstream of the spinning device and detects a yarn defect in the travelling spun yarn. The yarn accumulating roller (21) is arranged downstream of the yarn clearer and accumulates the spun yarn by rotating while winding the spun yarn around an outer peripheral surface thereof. The suction opening of the suction device is arranged near a base end of the yarn accumulating roller (21). The suction device (30) can generate suction airflow at the suction opening (46). The unit controller (60) delays a stoppage timing, which is a timing at which feeding of the spun yarn is stopped, when the yarn clearer (52) detects a prescribed yarn defect in which yarn strength is low, compared with when other type of yarn defect is detected, and stops the yarn accumulating roller (21) after the stoppage timing.

The invention discloses a yarn cleaning device. The yarn cleaning device comprises a first sliding rail, a sliding block, cleaning devices, pressing devices, yarn detection wire take-up devices and yarn junction devices, the sliding block is slidingly arranged on the first sliding rail, a resetting device is arranged between the first sliding rail and the sliding block, the upper surface of the sliding block is provided with the yarn junction devices, the yarn detection wire take-up devices are arranged between the yarn junction devices, the yarn penetrates through the yarn junction devices and the yarn detection wire take-up devices, the cleaning devices which are used for cleaning yarn flocs are arranged on the sliding block, and the pressing devices are arranged between the yarn junction devices and the cleaning devices. The yarn cleaning device can achieve continuous yarn detection, in the case of continuous yarn movement, cutting off and connecting are conducted, and adsorption processing is conducted on the flocs on the yarn through the cleaning device.

The invention provides a spinning unit, wherein a drawing-off spinning unit (1) comprises a drawing-off device (5), a spinning device (6), a tension stabilizing device (8), a winding device (9) and a yarn defect detecting device (7).The drawing-off device (5) drafts a fibre bundle (F).The spinning device (6) produces spinnings (Y) from the fibre bundle (F) drafted by the drawing-off device (5).The tension stabilizing device (8) stabilizes the tension of the spinnings (Y) produced by the spinning device (6).The winding device (9) winds a package (91) of the spinnings (Y) fed from the tension stabilizing device (8).The yarn defect detecting device (7) can detect a yarn defect in the spinnings (Y).The yarn defect detecting device (7) is arranged between the spinning device (6) and the tension stabilizing device (8).