US3792818A - Thread reserve-forming devices - Google Patents

Thread reserve-forming devices Download PDF

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Publication number
US3792818A
US3792818A US00175609A US3792818DA US3792818A US 3792818 A US3792818 A US 3792818A US 00175609 A US00175609 A US 00175609A US 3792818D A US3792818D A US 3792818DA US 3792818 A US3792818 A US 3792818A
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Prior art keywords
thread
rocker arm
winding
axis
carrier
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US00175609A
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English (en)
Inventor
K Bauer
P Illg
S Putsch
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Oerlikon Barmag AG
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Barmag Barmer Maschinenfabrik AG
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Priority claimed from DE19702042674 external-priority patent/DE2042674A1/de
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H54/00—Winding, coiling, or depositing filamentary material
    • B65H54/02—Winding and traversing material on to reels, bobbins, tubes, or like package cores or formers
    • B65H54/28—Traversing devices; Package-shaping arrangements
    • B65H54/34—Traversing devices; Package-shaping arrangements for laying subsidiary winding, e.g. transfer tails
    • B65H54/343—Traversing devices; Package-shaping arrangements for laying subsidiary winding, e.g. transfer tails when starting winding on an empty bobbin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/30—Handled filamentary material
    • B65H2701/31—Textiles threads or artificial strands of filaments

Definitions

  • ABSTRACT Thread reserve-forming devices adapted to provide automaticallyon a winding tube a thread reserve winding next to the main thread winding.
  • Thedevices embody thread deflecting rods and pivotable, threadrestraining members to temporarily hold the thread for thread reserve formation at the beginning of the winding operation.
  • the invention relates to devices for the formation of a thread reserve between a thread-catching groove and the winding zone on a winding carrier, e.g., a winding tube, used in a thread winding mechanism having a selfthreading traverse thread guide and possibly a groove roller arranged on its respective stroke reversal zones.
  • a winding carrier e.g., a winding tube
  • the devices temporarily restrain the thread supplied through a thread guide positioned centrally of the winding zone length after the thread has been caught in a catching groove in the winding carrier, whereby thread movement into the traverse range for the winding package is delayed.
  • the thread path is displaced temporarily from its primary winding path by a rod positioned in the zone of the catching groove to deflect the thread from its most direct course onto the winding tube.
  • the rod is in front of and substantially parallel to the thread traverse guide.
  • the devices also embody a restraining plate rotatable about a diagonally vertical axis in a swinging direction counter to a counterforce brought about by the inertia of the body toward a thread releasing position.
  • British Patent No. 1,124,893 describes a known thread reserve-forming device, in which a wheel having on its periphery ratchet-type teeth is borne rotatably about a vertical axis.
  • the caught thread acts on the tooth outcropping in each case in the rest position in radial direction.
  • the thread is spaced from the tooth to be acted upon.
  • the caught thread passes in its displacement from the threading into the winding position against a feed edge running obliquely to the axis of the winding carrier into position, over which the thread draws itself axially outward away from the winding zone, until it reaches a following radially running further guide edge, which feeds the thread to the radially directed tooth.
  • the laying of the thread in the bight of the wheel holder serves in the known arrangement, however, also the purpose of obtaining a sufficiently great encircling angle in the threading into the catching groove.
  • the thread to be threaded is placed on a deflection rod arranged on a swinging arm and running parallel to the axis of the winding carrier, which rod is thereupon swung inward toward the traversing device. This arrangement, too, increases the space requirement in an unfavorable manner and requires an additional manual operation.
  • Underlying the invention is the problem of creating an arrangement for the forming of a thread reserve on a winding carrier which, with little space requirement, makes possible transversely to the axial direction of the winding device a large encircling angle in the threading of the thread and is simple in construction and in operation.
  • a rotatable body serving as thread-deflecting guide for the thread and deflecting it from its running path substantially parallel to the front of the traversing thread guide radially inward to the winding carrier.
  • the guide consists of a rocker arm, preferably constructed as a planar plate, swingable about an axis inclined preferably with its upper end extending diagonally in the vertical direction away from the winding tube or carrier. It swings from a rest position wherein its thread guide edge is substantially parallel to the axis of the winding carrier. It is urged yieldably counter to the swinging direction imparted by the thread running over said edge against a fixed stop.
  • the invention takes advantage of the known circumstance that in the applying of the thread, especially by means of a suction pistol, the thread pull exerted is less than in the main winding.
  • the swinging arm as thread guide in the applying of the thread, there are provided, as compared to the prior-known arrangement, considerable simplifications in the construction and in the operation.
  • it is merely necessary to guide the thread around the guide rod and the rocker arm to the winding carrier.
  • a large access angle to the winding carrier is available and assures the secure introduction of the thread into the catching groove.
  • the rocker arm is urged yieldingly in the rest position against a stop.
  • the yieldable force is so great that it is not overcome by the thread in the applying of the latter to the winding carrier or tube.
  • the axially parallel guide rod cooperating with the rocker arm can be adjusted in such a way that it absorbs a great portion of the deflection force caused by the deflection of the thread from the traverse side radially inward toward the winding carrier and unburdens the rocker arm by this portion.
  • the yieldable holding force which presses the rocker arm toward the rest position against the fixed stop can be kept small.
  • An advantageous embodiment of the invention has the center of gravity of the rocker arm arranged in such a way that the rocker arm is urged toward the rest position against the fixed stop counter to the thread swinging direction by a gravitational torque.
  • the torque is used solely to hold the rocker arm against the stop, its force is chosen to be great enough not to be overcome by the thread during its threading on the winding carrier.
  • the position of the center of gravity and the swing angle are attuned to one another in such a way that the rocker arm, after the swinging out by the thread caught and displaced toward the winding position, returns automatically into the rest position. This measure is suited for additionally saving space in that it is not necessary to reach manually into the zone of the rocker arm in order to swing it back into the starting position after'use.
  • a further advantageous feature of the invention consists inuse with the rocker arm of a magnet.
  • the magnet is oriented in such a way that, in the rest position of the rocker arm, it exerts a holding action against the fixed stop on the arm counter to its thread swinging direction.
  • the magnet can exercise the holding function alone both in the case of the inclined axes of rotation and also in the case of a vertical axis. It can, however, also be used together with other yieldable arm-holding means, e.g., with the gravitational torque means used on the inclined axis embodiments of the rocker arm.
  • the magnet i.e., a permanent magnet
  • the rocker arm substantially parallel to its rocking axis and in the rest position of the rocker arm opposite a magnetizable stationary body, preferably formed by the support providing the rocking axis. It is swung out in thread swinging direction in such a way that the magnet exerts a holding torque urging the rocker arm against the fixed stop.
  • the rocking axis of the rocker arm is arranged with one end on a holding arm extending parallel to the axis of the winding carrier or tube.
  • the permanent magnet is received by a bore running parallel to the rocking axis in the rocker arm, and its spacing with respect to the holding arm is adjustable.
  • the combinations according to the invention for the formation of a thread reserve are capable within a great range to make adaptations individually best suited in the most diverse conditions of use.
  • the inclination of the swinging axis of the rocker arm can be adjusted in a plane radial to the winding carrier.
  • the guide rod associated with the rocker arm can be adjusted in various parallel orientations. Such adjustment preferably takes place on a straight line which is inclined from the horizontal and in a direction toward and away from the winding carrier.
  • the combinations according to the invention may be provided with a thread applying aid.
  • a thread applying aid consists in curving the axis-parallel edge of the rocker arm at its winding-carrier-remote end in the direction away from the winding zone with an arcuate form in such a way that a bight is formed into which the thread can be laid when shifting it over from the traversing mechanism into the threading position on the winding carrier.
  • a traverse thread guide optionally having a groove roller at each reversal zone, provides two or more separate windings on a common winding carrier in turn provided with a corresponding number of thread catching grooves
  • the suction pistol In the feeding of a new thread of the winding carrier, the suction pistol can remain in the zone of the face side of the winding device. Thereby an accessibility transversely to the axes of the winding device is unnecessary in initial feed of the thread with reserve formation.
  • FIG. 1 is a schematic front elevation of a winding device which is provided with a first embodiment of thread guiding devices for forming a thread reserve;
  • FIG. 2 is a plan view of the rocker arm used in FIG. I, which arm has a special thread applying bight;
  • FIG. 3 is a plan view corresponding to FIG. 2, in which the rocker arm is in the position to which it is swung out by the thread and from which position it swings back, by reason of the special position of its center of gravity in conjunction with an inclined arrangement of the rocking axis, into the rest position parallel to the axis of the winding carrier, the latter position being shown in FIG. 2;
  • FIG. 4 is a fragmentary, perspective view of a unit for winding in another embodiment wherein the threadguiding edge of the rocking arm runs continuously parallel to the winding carrier up to the lug;
  • FIG. 5 is a schematic front elevation of the winding device of FIG. 4, partly in section;
  • FIG. 5a is a fragmentary, perspective view of another embodiment of the rocker arm
  • FIG. 6 is an enlarged detail view of FIG. 5 in which there is shown the adjustment variations provided by the parallel shifting of the guide rod associated with the rocker arm;
  • FIG. 7 is a fragmentary, perspective view of an embodiment of the invention utilizing the rocker arm structure of FIGS. 4 and 5;
  • FIG. 8 is a fragmentary, perspective view of the embodiment for thread reserve formation associated with the winding carrier according to FIGS. 4 and 5, in combination with thread guide members through which the thread runs from the face side of the winding device automatically into the thread catching groove and to the lug of the rocker arm;
  • FIG. 9 is a schematic front elevation of a group of winding devices arranged densely next to one another for the winding of especially threads supplied from spinning machines, in which there is evident the suitability of the devices of the invention for thread reserve formation in difficult spatial relations.
  • the winding device represented in FIG. 1 shows an arrangement, one above the other, of a reverse-thread spindle 1 with the traverse guide 2 rectilinearly reciprocated in known manner by the spindle 1 and of the groove roller 3, which serves the purpose of achieving a uniform thread distribution at the ends of the winding zone by taking over the thread guiding function as the guide 2 reverses direction.
  • the drive roller is driven in the direction of arrow 8 and rotates the winding carrier and thread winding thereon in the direction of the arrow 9.
  • the thread 10 is fed in from above through the fixed thread guide 11 positioned above the reverse-thread spindle l centrally to the traverse range of the traverse guide 2 and runs in the path 12 drawn in in broken lines through the thread guide 2 and with partial encircling of the groove roller 3 to the run-on point 13 on the winding carrier 6.
  • the thread end Before a new winding is commenced, the thread end must first be introduced into a catching groove 40 (FIGS. 4 and 8) of the winding carrier. After the catching of the thread there must thereupon be formed a thread reserve lying outside the winding zone of the winding proper and between the winding zone and the catching groove before the actual winding formation begins.
  • the thread reserve consisting as a rule of several spiral turns, serves essentially for the tying on of the end of the one winding to the beginning of the next winding.
  • the thread according to the invention takes, from the thread guide 11, the path 14.
  • the unit 15 for the thread reserve formation is used during the thread applying and thread catching on the winding carrier 6 as thread guide for the deflecting of the thread from the course substantially parallel to the traverse front radially inward under the groove roller to the winding carrier.
  • the unit for the thread reserve formation interposed between the rollers 1 and 3 serving for the traverse, on the one hand, and the winding carrier 6 with drive roller 4, on the other hand, as is shown in FIG. 1, consists essentially of a rocker arm 18 extending in the rest position parallel to the axis of the winding carrier 6 and a guide rod 19.
  • the guide rod extends parallel to the axis of the winding carrier 6.
  • the rocker arm is pivotable about the axis 20, which is preferably inclined from the vertical. In the embodiment of FIG. 1, it lies in a plane radial to the winding carrier and inclined relative to the perpendicular direction away from the winding carrier.
  • the reasons for the inclination of the axis from the vertical direction and for the rocker arm, preferably in the form of a planar plate, lying in a plane inclined relative to a horizontal plane essentially are that the thread running from the edge 21 of the rocker arm remote from the winding carrier does not contact with the edge of the rocker'arm facing the winding carrier, and by suitable mass distribution of the rocker arm, which will be gone into in the following for FIGS. 2 and 3 in more detail, that the rocker arm in its rest position has a gravitational counter-torque counteracting the torque brought about by the thread.
  • the rocker lever 18 has, further, a lug-22, against which the thread runs as it moves in a direction parallel to the axis of the winding carrier toward the winding zone during the threading of the thread in the catching groove of the winding carrier and which lug accordingly prevents the premature moving off of the thread along the guide rod 19 and the edge 21 into the winding zone or into the range of the traverse guide 2.
  • the arrangement of the guide rod 19, which forms a fixed deflecting member for the thread takes up, in the deflection of the thread (amounting in FIG. 1 to more than 90 from the direction essentially vertically parallel to the front of the traverse guide 2 and of the groove drum 3 into the direction essentially horizontally radially inward toward the winding carrier), a major part of the deflection forces with the smaller part falling to the edge 21 of the rocker arm 18. correspondingly, also only a minor part of the thread force caused by the geometry of the thread direction changes falls to the rocker arm. Thereby a small counterforce or a small countermement suffices to hold the rocker arm during the use of the same as thread guide in the rest position during the applying of the thread.
  • FIGS. 2and 3 there is represented in more detail the rocker arm itself, inclusive of its support.
  • the rocker arm 18 In FIG. 2 the rocker arm 18 is in its rest position, in which it extends essentially parallel to the axis of the winding carrier.
  • the center of gravity 24 of the rocker arm lies in the rest position of the rocker arm on the side of the axle toward the lug 22. Thereby there is brought about a gravitational torque which urges the rocker arm into rest position with the stop surface 25 against the fixed stop 26 on the holding arm.
  • This torque suffices'under some circumstances tocompensate for the torque exerted by the thread during its application to the winding carrier by contact in the zone of the lug 22, which torque tends to swing the rocker arm with its lug-side end toward the winding carrier.
  • the rocker arm can be provided with holes inthe manner of the hole 29. In order to minimize frictional forces and to achieve an easy starting movement of the rocker arm, it is journalled by means of a ball bearing 30 on the axle 20.
  • the edge 21 which is remote from the winding carrier, runs in the rest position of the rocker arm in the zone of the rocking axis 20 parallel to the winding carrier. Toward the winding zone the edge turns in arcuate form to the lug 22.
  • the are 31 preferably is a circular arc, since this is simple to manufacture.
  • the radius of the circular arc, extending preferably over less than is expediently chosen of such a size that the thread in the swinging of the rocker arm brought about by it moves out axially to the winding zone on the arc 31.
  • the edge 21 is likewise turned at the end remote from the winding zone in arcuate form over an angle of more than 90 in such a way that the bight 32 is formed.
  • This bight serves for the inserting of the thread in its introduction in the threading position.
  • the thread taken up with the suction pistol (not represented) from the thread guide 1 1 is guided over the rod 19 and laid in the bight 32 and then swung from a substantially axially-parallel and horizontal course between the groove roller 3 and the drive roller 4 under the deflecting rod 17 into the position radial to the winding carrier 6.
  • the thread after partial encirclement of the winding carrier, is guided from the winding zone to the catching groove, into which it is then drawn automatically by reason of the radial force brought about by the encircling.
  • the small space requirement associated with the arrangement for thread reserve formation according to the invention can advantageously be used in an arrangement of winding devices, for example, according to FIG. 9, where, in particular under a spinning machine (not represented) there are arranged a large number of winding devices so close together that the thread application to the new winding carrier and the thread reserve formation has to be made only from the accessible face or front side.
  • the arrangementaccording to the invention makes possible, withlittle space requirement, a large encircling angle in the threading of the thread into the catching groove. This assures an especially secure and firm clamping of the thread into the catching groove. Thereby, again, faulty threadings are largely avoided.
  • the avoidance of faulty threadings of the thread into the catching groove of the winding carrier means the avoidance of loss times, which are of substantial importance especially in the case of high-output winding devices. Also in view of the automation of the winding process, inclusive of the changing of a finished winding for a new winding carrier and the applying of the thread to the latter, the avoidance of faulty threadings acquires a considerable importance.
  • FIGS. 4 and 5 the invention is shown in conjunction with a winding device constructed differently as compared to FIG. 1.
  • a reverse-thread spindle 51 with traverse guide 52 and a groove roller 53.
  • the drive roller 54 is arranged laterally behind the groove roller, while the winding carrier 56 is situated underneath and about half way between the drive roller and the groove roller.
  • the three rollers are arranged in a frame 34 raisable and lowerable with respect to the winding carrier according to arrow 33. Again, the thread 60 is fed from the zone above the reverse-thread spindle 51 and the groove roller 53 centrally to the winding zone.
  • the thread runs in the path 62 over a deflecting rod 35, the traverse guide 52 and the groove roller 53 radially inward from above onto the winding carrier 56, which is driven in the direction of the arrow 59 at the contact place 63 by the drive roller 54 turning in the direction of the arrow 58.
  • the path of the thread in applying it to the winding carrier 56 is designated with 64.
  • the thread using the unit 65 according to the invention for the thread reserve formation as a deflecting thread guide, runs first, at a distance from the traverse front formed by the traverse guide 52 and the groove roller 53 substantially perpendicularly downward into the zone underneath the groove roller and thereupon radially inward to the winding carrier 56 and across the under-side of the latter.
  • the leading end 66 is drawn off by a suction pistol (not represented).
  • the thread 64 to be threaded is guided in running direction successively over the guide rod 69 and the edge 71 of the rocker arm 68, which is swingable back and forth on the axis 70.
  • the lug 72 prevents the premature axial moving off of the thread into the winding or traverse zone.
  • a rod 36 is arranged as a safety measure to assure the spacing of the thread 64 from the traverse front.
  • the rocker arm 68 is in the rest position, in which it extends substantially parallel to the axis of the winding carrier 56. Opposite to the direction in which the thread running over its edge 71 and lug 72 tends to swing it, the arm is urged by a counter moment against a fixed stop (not represented in FIGS. 4 and 5).
  • the countermoment can be brought about, in the case of inclined axis 70, as it is represented in FIGS. 4 and 5, in correspondence to the rocker arm in FIGS. 2 and 3, i.e., as a gravitational countermoment.
  • a holding magnet 37 is mounted in the part of the rocker arm remote from the lug 72.
  • a holding arm 73 of a magnetizable material lies opposite the magnet, e.g., a pot-shaped permanent magnet.
  • the magnet swings in thread-swinging direction away from the illustrated orientation in the rest position of the rocker arm.
  • a magnet return torque which urges the rocker arm opposite to the thread swinging direction, against a fixed stop corresponding to the fixed stop 26 in FIGS. 2 and 3, is present.
  • the holding magnet 37 holds the rocker arm 68 in the rest position while the latter is used as a thread guide during the threading of the thread.
  • the winding tension has built up to a point wherein the holding force of the magnet 37 is immediately overcome.
  • the rocker arm turns with its lug end toward the winding carrier.
  • the magnet is turned still further out of the range of the holding arm 73, its restoring force diminishes very rapidly to zero.
  • the moment of inertia of the mass of the rocker arm counteracts against the thread tension forces.
  • the mass of the rocker arm is to be kept more or less small according to the level of the winding speed. Otherwise the inert mass causes too great a retardation.
  • the rocker arm according to FIGS. 2 and 3 expediently may utilize a holding magnet 37.
  • FIGS. 2 and 3 served especially for the explanation of the mass distribution of the rocker arm in the manner that the rocker arm with inclined axis is capable always of swinging back automatically into the rest position.
  • the special center of gravity position in conjunction with the rotation angle adapted to it, on the one hand, and the arrangement of the holding magnet, on the other hand, fulfill, especially in the case of low-mass rocker arms for highoutput winding devices, two separate functions.
  • the holding magnet serves the purpose of holding the rocker arm securely in the rest position during the threading of the thread in the catching groove of the winding carrier, while the center of gravity position in conjunction with the inclined rocking axis serves primarily to allow the rocker arm, after operation by the thread shifting into the winding position, to swing back automatically into the rest position.
  • the special position of the center of gravity helps to hold the rocker arm in the rest position.
  • the rocker arm 68 has, with respect to the rocker arm 18 of FIGS. 2 and 3, the difference that the straight edge 7 runs from the remote from the winding zone up to the curve 81 parallel throughout to the axis of the winding carrier 56 in the rest position of the rocker arm.
  • This provides an advantageous further feature for the thread reserve formation which makes it possible in constricted space conditions to apply the thread from the accessible side face 43 of the winding device. Further details in this connection are to be further explained below.
  • the unit for the thread reserve formation serves as thread guide. It deflects the thread from the substantially vertical course at a distance from the traverse guide 52 and the groove roller 53 underneath the groove roller and radially inward toward the winding carrier 56 located behind the traverse front. It is further clearly evident that the space requirement transversely to the axes of the winding device is small and that the thread deflection takes place both at the rocker arm 68 and also at the guide rod 69. In this sys tem only a part of the deflecting force, because of the thread course and thread tension providing forces directed radially inward and obliquely toward the middle of the winding zone, is absorbed by the rocker arm.
  • holding moment of the magnet 37 for holding the rocker arm in the rest position against the thread swinging direction can be relatively small, making it possible to overcome the holding moment almost immediately by the thread in its course 64, 139, as soon as the higher winding tension is built up.
  • the holding arm 73 has a slit 44 in the pin 45 of the holding arm accessible from the face side 43.
  • the inclination of the rocker arm 68 and its rocking axis 70 is adjustable by turning pin 45, e.g., with a screwdriver.
  • the guide rod 69 is adjustable parallel to itself in the direction of arrows 46 and 47.
  • thread course is used for the applying of the thread from the side face 43 (FIG. 4) of the winding device and shows that also with this side face applying technique, in which the thread is first guided at a distance underneath the winding carrier 56, the lug 72 of the rocker arm prevents the premature moving off of the thread into the zone of the traverse guide 52.
  • FIG. 7 shows the rocker arm 68 with its guide rod 69 in correspondence to FIG. 4 on a larger scale.
  • the universal adjustability of the unit for the thread reserve formation is readily appreciated.
  • the holding arm 73 running parallel to the axis of the winding carrier, for the rocker arm 68 is received by means of a cylindrical pin 87 in the bore 88 of the support arm 86 of the frame 34 (FIG. 4).
  • the holding arm can be turned for the adjustment of the inclination of the rocking axis 70 of the rocker lever by a tool inserted into the slit 44 of its face 45. In the adjusted position, it may be held by the setscrew 89.
  • the guide rod 69 is slidably received by a bore 91 with its rectangularly right angle-bent end 90 oriented in the direction of the shifting path 46, 47 (FIG.
  • the bore-inserted end 92 can be shifted in the direction of the arrows 46 and 47 in FIG. 5 with simultaneous corresponding parallel shifting of the guide rod 69.
  • the offset 94 makes it possible to shift the guide rod 69 inward past the front side 95 of the support arm 86.
  • the potshaped holding magnet 37 is slidably received in the bore 96, which is parallel to the axis 70, in the rocker arm 68.
  • the field of the magnet 37 is oriented toward the mounting bar 97 for the axle 70.
  • the magnetic holding force urges the rocker arm counter to the thread swinging direction with its stop surface 75 against the stop pin 76 mounted on the bar 97. Since the magnetic attraction changes exponentially with the distance, a short shifting path yields an appreciable change of the holding force exerted by the magnet on the rocker arm.
  • the setscrew 98 which is threaded in the edge 71 of the rocker arm, the magnet can be adjusted toward or away from the bar 97.
  • FIG. 7 there is shown a thread feed member 99 which makes it possible to apply the thread in the threading in the zone of the side face 43 (FIG. 4) of the winding device.
  • the thread 101 applied at the bend 100 moves automatically in path 102 over the feed member 99'onto the guide rod 69 and the edge 71 of the rocker arm 68 and thence onward to the lug 72.
  • the edge 71, the curve 81 and the lug tip, as shown in FIGS. 6 and 7, preferably are rounded.
  • FIG. 8 The feed of the thread from the side face of the winding device is shown in more detail in FIG. 8, in which certain parts of the winding device according to FIGS. 4 and 5 are omitted for the sake of better illustration.
  • the thread feed members 99 and 103 Engaged ahead of the rocker arm 68 and the guide rod 69 on both sides of the winding carrier 56 are the thread feed members 99 and 103.
  • the latter are attached in a manner not represented in detail with substantially axially parallel alignment to the frame 34 (FIG. 4) on the front and rear in the zone of the face 43.
  • the thread 101 taken up by the suction pistol 104 is laid in the bend 100 (FIG. 7) of the feed bar 99 and then, with swinging of the thread into the radial direction 105, it is drawn under and up the stirrup 106 until the suction pistol 104 occupies approximately the position shown in the drawing.
  • the thread now draws itself axially inward, in which process it passes from the rod 99 onto the guide rod 69 and the edges 71 and 81 of the rocker arm and on these onward against the lug 72. Simultaneously the thread moves automatically axially inward on the oppositely situated guide member 103 along the stirrup 106, remaining spaced from the underside of the winding carrier 56. The thread then moves upward along the vertical stirrup 107. Here it rides on the underside of the winding carrier 56 still axially spaced from the thread catching groove 40. Now the thread moves automatically over the horizontal stirrup 108 against the stop 109, which lies in the same radial plane as does the catching groove 40, and forces its way into the catching groove. The remaining process has already been described above.
  • FIG. 9 makes it possible to see especially clearly the space-saving features of the embodiments herein.
  • a plural row arrangement of a group of winding devices corresponding to that of FIGS. 4 and 5.
  • From each spinning shaft of relatively small cross section there are delivered at high velocity, for example, four threads, each one of which is wound by four respective winding devices 110.
  • the four winding devices With spacing adapted to the horizontal cross section of the spinning shaft in question, the four winding devices, which have a compact construction, are arranged in two columns of two, each next to one another. The lateral spacing from one another is so small that there is no accessibility transversely to the axes of the winding device.
  • the space between two devices is even additionally constricted by the fact that the thread 111 for the lower winding device is conducted downward in front of the traverse side of the winding device situated above it.
  • the arrangement according to the invention makes possible the threading and the reserve formation under these difficult conditions of use by applying the thread in the zone of the freely accessible face side of the winding device at the thread feed members 99 and 103 and having it move automatically from there to the unit for the reserve formation and into the catching groove.
  • the arrangement according to the invention is suited to provide for fully automatic threading of the thread on the new winding carrier with thread reserve formatlon.
  • FIG. 5a mechanical stop means can be provided in order to keep the rocker arm steadily in his state of rest.
  • the stop means are consisting of a locking lever 140, which is pivotally mounted round an axis 142 on the rocker arm 141.
  • the axis 142 is vertically mounted to the axis 143 of the rocker arm.
  • the locking lever has a portion 144, which engages in a certain position of the locking lever with the arm 145, on which the rocker arm is pivotally mounted and which thereby prevents the pivoting of the rocker arm.
  • This position is obtained by the locking lever as a result of gravitational force.
  • the thread 138 is caught by the catching groove and is running in the direction 139, in the main parallel to the surface of the rocker arm, as shown in H6. 5
  • the locking lever is pushed upwards by the thread. Thereby the rotating motion of the rocker arm is set free.
  • a device for formation of a thread reserve between a thread catching groove in a winding carrier and the zone on said carrier for the winding itself which comprises a self-threading reciprocable traversing device adapted 'to reciprocate the thread running therethrough to distribute it on said winding carrier as the latter rotates about a horizontal axis of rotation to form the winding, and a thread deflecting assembly in the vicinity of said thread catching groove positioned to temporarily deflect the thread path out of the range of said self-threading traversing device, said assembly embodying a pivotable rocker arm having a threadcontacting edge parallel to the horizontal axis of rotation of said winding carrier when said rocker arm is in rest position, a lug on said arm projecting away from said carrier at the end of said rocker arm remote from said groove, means pivotally mounting said arm for free pivotal movement about an axis of rotation positioned in a plane which is radial to the horizontal axis of rotation of said carrier, said axis of rotation of said arm being oriented in said plane either vertically or
  • a device as claimed in claim 1 and a guide rod extending longitudinally parallel to the axis of said winding carrier outwardly of said edge and in position relative to the thread path to deflect the thread successively first across said rod and then across said edge.
  • said yieldable means including a magnet exerting a small force yieldably holding said rocker arm in said rest position.
  • a device as claimed in claim 1 and means supporting said rocker arm at varied inclinations in said radial plane of its axis of rotation.
  • said lastmentioned means being pivotable means and moving said axis of rotation of said rocker arm in said plane radial to the winding carrier.
  • a device as claimed in claim 2 means mounting said guide rod for adjustable movement thereof with said guide rod remaining substantially longitudinally parallel to'said axis of said winding carrier.
  • said lastmentioned means moving said rod in a plane inclined relative to the horizontal in a direction toward or away from said winding carrier.
  • a device as claimed in claim 1 and means forming a thread guiding bight on the end of said rocker arm remote from said lug, said bight providing a thread positioning guide used in threading said thread on said winding carrier.
  • said traversing device embodying a grooved roller adapted to take over and guide the traversing movement of the thread at the stroke reversal zones, said drive roller being behind said grooved roller, and said winding carrier being beneath and between said rollers, and thread feed guide members having guide bars parallel to the axis of said winding carrier and including means for guiding the thread in a path initially spaced from said rocker arm and its guide rod to a position below said winding carrier and then upwardly into said thread catching groove in the winding carrier and substantially simultaneously with the catching of said thread in said groove changing the thread path to one over said edge of said rocker arm and its associated guide rod as the thread tension increases upon beginning of the winding thereof on said carrier. 7 r 15.
  • said stop means including a locking lever with an engaging portion on it in order to engage with said rocker arm and to stop it in said rest position, means pivotally mounting said locking lever near to said rocker arm in such a way, that said lever is kept in engagement with said rocker arm by said yieldable means and that it is brought out of engagement with said rocker arm by the force of said thread, as it is caught in said catching groove.
  • a combination comprising a plurality of devices as claimed in claim 13, and a common thread feed guide member extending parallel to the traversing members of said devices for applying respective threads simultaneously against respective bights in respective rocker arms of said devices.

Landscapes

  • Winding Filamentary Materials (AREA)
  • Guides For Winding Or Rewinding, Or Guides For Filamentary Materials (AREA)
US00175609A 1970-08-28 1971-08-27 Thread reserve-forming devices Expired - Lifetime US3792818A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19702042674 DE2042674A1 (de) 1970-08-28 1970-08-28 Einrichtung zur Bildung einer Faden reserve auf einem Wickelträger

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US3792818A true US3792818A (en) 1974-02-19

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US (1) US3792818A (pt)
BR (1) BR7105656D0 (pt)
CH (1) CH527760A (pt)
FR (1) FR2106171A5 (pt)
GB (1) GB1366544A (pt)
NL (1) NL7111681A (pt)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3908917A (en) * 1972-11-09 1975-09-30 Schuster & Co F M N Deflecting mechanism for controlling thread being wound onto a spool core
US3964690A (en) * 1972-09-22 1976-06-22 Rene Tauleigne Apparatus for forming a piecing end on a yarn winding
US3971518A (en) * 1974-11-18 1976-07-27 Eastman Kodak Company Transfer tail apparatus for use with textile yarn winders
US3999716A (en) * 1976-02-09 1976-12-28 Eastman Kodak Company Transfer tail apparatus for use with textile yarn winders
US4083505A (en) * 1975-06-14 1978-04-11 Barmag Barmer Maschinenfabrik Aktiengesellschaft Spinning machine with thread applying device
US4111375A (en) * 1976-04-02 1978-09-05 Spinnstoffabrik Zehlendorf Aktiengesellschaft Process and equipment for the production of a yarn tail
US4146186A (en) * 1975-06-14 1979-03-27 Barmag Barmer Maschinenfabrik Ag Spinning machine with thread applying device
US4358065A (en) * 1978-03-21 1982-11-09 Rieter Machine Works, Ltd. Apparatus for producing thread or yarn reserve windings on a bobbin tube
US4489898A (en) * 1982-09-30 1984-12-25 Celanese Corporation Method and apparatus for initiating the winding of filamentary material upon a winder tube
US5568897A (en) * 1993-12-24 1996-10-29 Menegatto S.R.L. Cutter for cutting yarn in textile machines
US5716016A (en) * 1994-06-27 1998-02-10 Toray Engineering Co., Ltd. Turret type yarn winder with reduced tension variation during switching
CN101318599B (zh) * 2007-03-22 2013-03-27 里特捷克有限公司 纺织机上用于纱线往复运动的装置

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3065921A (en) * 1959-06-18 1962-11-27 Reiners Walter Yarn spool reserve winding apparatus
US3097804A (en) * 1962-01-23 1963-07-16 Du Pont Transfer tail winding device
US3166262A (en) * 1962-10-10 1965-01-19 Du Pont Yarn transfer tail forming and controlling apparatus
US3275252A (en) * 1964-06-12 1966-09-27 Allied Chem Transfer tail winding
US3276704A (en) * 1963-12-31 1966-10-04 Du Pont Transfer tail winder
US3282516A (en) * 1965-07-23 1966-11-01 Du Pont Yarn windup
US3408011A (en) * 1965-01-29 1968-10-29 Barmag Barmer Maschf Thread reserve forming devices for thread winding mechanisms
US3595490A (en) * 1968-02-05 1971-07-27 Heberlein & Co Ag Apparatus for providing a thread reserve on a winding bobbin or the like

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3065921A (en) * 1959-06-18 1962-11-27 Reiners Walter Yarn spool reserve winding apparatus
US3097804A (en) * 1962-01-23 1963-07-16 Du Pont Transfer tail winding device
US3166262A (en) * 1962-10-10 1965-01-19 Du Pont Yarn transfer tail forming and controlling apparatus
US3276704A (en) * 1963-12-31 1966-10-04 Du Pont Transfer tail winder
US3275252A (en) * 1964-06-12 1966-09-27 Allied Chem Transfer tail winding
US3408011A (en) * 1965-01-29 1968-10-29 Barmag Barmer Maschf Thread reserve forming devices for thread winding mechanisms
US3282516A (en) * 1965-07-23 1966-11-01 Du Pont Yarn windup
US3595490A (en) * 1968-02-05 1971-07-27 Heberlein & Co Ag Apparatus for providing a thread reserve on a winding bobbin or the like

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3964690A (en) * 1972-09-22 1976-06-22 Rene Tauleigne Apparatus for forming a piecing end on a yarn winding
US3908917A (en) * 1972-11-09 1975-09-30 Schuster & Co F M N Deflecting mechanism for controlling thread being wound onto a spool core
US3971518A (en) * 1974-11-18 1976-07-27 Eastman Kodak Company Transfer tail apparatus for use with textile yarn winders
US4083505A (en) * 1975-06-14 1978-04-11 Barmag Barmer Maschinenfabrik Aktiengesellschaft Spinning machine with thread applying device
US4146186A (en) * 1975-06-14 1979-03-27 Barmag Barmer Maschinenfabrik Ag Spinning machine with thread applying device
US3999716A (en) * 1976-02-09 1976-12-28 Eastman Kodak Company Transfer tail apparatus for use with textile yarn winders
US4111375A (en) * 1976-04-02 1978-09-05 Spinnstoffabrik Zehlendorf Aktiengesellschaft Process and equipment for the production of a yarn tail
US4358065A (en) * 1978-03-21 1982-11-09 Rieter Machine Works, Ltd. Apparatus for producing thread or yarn reserve windings on a bobbin tube
US4489898A (en) * 1982-09-30 1984-12-25 Celanese Corporation Method and apparatus for initiating the winding of filamentary material upon a winder tube
US5568897A (en) * 1993-12-24 1996-10-29 Menegatto S.R.L. Cutter for cutting yarn in textile machines
US5716016A (en) * 1994-06-27 1998-02-10 Toray Engineering Co., Ltd. Turret type yarn winder with reduced tension variation during switching
CN101318599B (zh) * 2007-03-22 2013-03-27 里特捷克有限公司 纺织机上用于纱线往复运动的装置

Also Published As

Publication number Publication date
BR7105656D0 (pt) 1973-05-31
GB1366544A (en) 1974-09-11
FR2106171A5 (pt) 1972-04-28
CH527760A (de) 1972-09-15
NL7111681A (pt) 1972-03-01

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