EP0295394B1 - Method and apparatus for forming a thread reserve winding - Google Patents

Method and apparatus for forming a thread reserve winding Download PDF

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Publication number
EP0295394B1
EP0295394B1 EP88106465A EP88106465A EP0295394B1 EP 0295394 B1 EP0295394 B1 EP 0295394B1 EP 88106465 A EP88106465 A EP 88106465A EP 88106465 A EP88106465 A EP 88106465A EP 0295394 B1 EP0295394 B1 EP 0295394B1
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EP
European Patent Office
Prior art keywords
tube
thread
sleeve
cross
winding
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP88106465A
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German (de)
French (fr)
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EP0295394A1 (en
Inventor
Hans Grecksch
Josef Bertrams
Rene Bucken
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Oerlikon Textile GmbH and Co KG
Original Assignee
W Schlafhorst AG and Co
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Publication of EP0295394A1 publication Critical patent/EP0295394A1/en
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Classifications

    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2511/00—Dimensions; Position; Numbers; Identification; Occurrences
    • B65H2511/30—Numbers, e.g. of windings or rotations
    • 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

  • the invention relates to a method for producing a thread reserve on the tube end of a cross-wound bobbin, consisting of a plurality of turns not belonging to the cross-wound bobbin, the thread being guided from the edge of the tube to the starting point of the first turn of the thread reserve and then the thread in turns which do not cross each other , crossing the thread end and holding it down, towards the edge of the tube, and a device for carrying out the method.
  • a thread reserve is formed on one of the tube ends, which lies outside the actual winding body.
  • This thread reserve can be used for connecting to other threads of running bobbins or for insertion into further processing machines without having to resort to the actual winding body.
  • a thread reserve is formed by clamping the thread start as a chord between the core plate and the edge of the core in the spool frame and then both ends of the chord are spooled with several layers of the reserve winding, the windings run more or less randomly onto the core. In many cases the string is not fixed and loosens. This can lead to the loss of the entire reserve winding.
  • a device for forming a thread reserve winding in which the thread reserve is also formed at the respective winding unit itself.
  • a bobbin plate of the bobbin holder specially designed for catching the thread must be provided on each winding device, which has radially aligned slots for catching the thread.
  • Each of these winding units therefore requires additional equipment to produce a thread reserve.
  • a thread reserve should only contain such a number of thread turns as is absolutely necessary for further handling. The number of turns should always be the same. Bobbin tubes with different thread reserves make further handling difficult. In the device of DE-A1 33 44 645, the size of the thread reserve to be formed is not monitored, which can lead to thread reserves with different thread lengths.
  • the invention has for its object to form an easily releasable thread reserve that can be produced with simple means in reproducible quality, without using the actual winding unit.
  • this object is achieved in that the thread is sucked in a length of at least a few centimeters into a central suction tube arranged in a rotatable sleeve plate, then clamped a sleeve between these and another rotatable sleeve plate and thereby the thread between the sleeve plate and the sleeve edge is held. Then the thread is guided in a known manner from the sleeve edge to the starting point of the first turn and the thread reserve is formed from a predeterminable number of turns.
  • the rotation of the sleeve is brought to a standstill, the sleeve is unclamped and transferred to a tube take-up device of a winding unit for winding up the cross-wound bobbin, or a plurality of cross-layers of the later cross-wound bobbin winding are applied to the tube before the tube comes to a standstill and only then is the tube unclamped and transferred to a tube take-up device of a winding unit that winds up the package.
  • the thread reserve is advantageously formed at a separate winding unit, outside the winding unit, which is to be loaded with the new tube.
  • all the facilities required for this thread reserve formation process are not required at the winding unit, but are only available once.
  • the central suction tube of the device according to the invention which can for example be arranged in a stationary manner centrally in the sleeve plate, prevents the formation of chords in the thread and the disadvantages associated therewith.
  • a prevents unintentional redissolving of the thread reserve. From the end, the thread reserve can be released without difficulty and without impermissibly high thread tensions and the associated risk of damage.
  • the thread is drawn out from under the turns, the turns dissolving one after the other and the last turn still holding the reserve thread.
  • the thread is advantageously cut between the suction tube and the edge of the sleeve, thereby forming an end section of the thread which is a maximum of 1 cm long and protrudes under the winding turns of the thread reserve.
  • the thread end which now only slightly protrudes from the sleeve edge can no longer be easily destroyed, squeezed or damaged. It is generally no longer squeezed between the edge of the sleeve and the sleeve plate during later clamping operations because of its brevity.
  • the device according to the invention for carrying out the method has a special winding device which is not identical to the winding device of a winding unit which winds up the cheese. This allows the winding units to be kept free of device features that lead to formation a thread reserve on the end of a bobbin are required.
  • the winding device has its own drive device for the sleeve and the drive device has two rotatably mounted sleeve plates, at least one of which is longitudinally displaceable for the purpose of receiving and releasing the sleeve.
  • the device is equipped with an automatic thread guide, with a guide element guiding the thread from the sleeve edge to the starting point of the first turn and a turn following the thread next to turn in the direction of the sleeve edge via the thread end conducting feed device.
  • it has a winding counting device for counting the turns of the thread reserve, which enables an exact measurement of the thread reserve.
  • the required thread reserve can be set beforehand and is maintained in accordance with the invention in that a sleeve drive element of the drive device can be controlled by the winding counting device.
  • the drive device can, for example, be designed so that it drives one of the two sleeve plates. But it can also be designed so that it drives the sleeve itself with a friction wheel.
  • the winding device for producing an end section of the thread end that protrudes a maximum of 1 cm below the winding windings of the thread reserve has a separating device that operates in the vicinity of the sleeve edge for cutting excess thread length.
  • one of the two rotatable sleeve plates has a central suction pipe connected to a suction air source and provided with a suction opening directed towards the inside of the sleeve for sucking in a thread connected to the take-off spool of a winding unit, from which after suction and after clamping the sleeve between the core plate creates the thread reserve.
  • an injector can serve as the source of suction air.
  • the two rotatably mounted sleeve plates for depositing the end section of the thread end in the interior of the sleeve have air passage bores.
  • the suction pipe has a valve which can be optionally set to the shut-off position of the suction air source and to a compressed air source. By placing the valve out of the shut-off position on suction, a thread end coming from a payout spool can be sucked into the suction pipe.
  • the valve can be set to bubbles and the length of thread drawn in can be blown into the interior of the sleeve.
  • the device is part of a mobile operating device which can be moved from winding station to winding station of a cross-wound bobbin and cooperates with its sleeve gripping device insofar as the sleeve gripping device is a removes empty tube from a tube magazine and presents it to the tube plates of the winding device, releases the tube during the formation of the thread reserve, then detects it again and presents it to a tube receiving device of a winding unit of the machine producing the bobbin.
  • the sleeve magazine is located either on the winding unit or on the mobile operating device.
  • the operating device is expediently designed as a bobbin changing device.
  • the winding unit 1 shows the winding unit 1 of a machine producing cross-wound bobbins. It is a cross-winder, which has a plurality of identical winding units, which should be one behind the other in the direction of view.
  • the machine frame 2 of the winding unit 1 carries, among other things, a grooved drum 3 for driving the cheese to be produced and as a tube take-up device a pivotable coil frame 4, which holds the sleeve clamped between rotatable sleeve plates 5, on which the cross-wound bobbin is later to be wound up.
  • Fig. 1 shows that the coil frame 4 is pivoted up and has not yet received a sleeve.
  • a sleeve 6 is located in the area of a mobile operating device 9, two further sleeves 7 and 8 are still in a sleeve magazine 10 of the winding unit 1. They are conical sleeves for winding conical cross-wound bobbins.
  • the sleeve magazine 10 has two runners 11 and 12 on which the sleeves rest. To the outside, the runners 11 and 12 are delimited by side walls 13 and 14.
  • the operating device 9 is an automatic cross-wound bobbin changer. It has the task of removing a fully wound cross-wound bobbin from the bobbin frame 4 and in its place to provide a bobbin with a thread reserve 15 (FIG. 6), for example the bobbin 6, the bobbin frame 4, which then clamps the bobbin between its bobbin plates 5 and brings against the rotatable grooved drum 3 to the plant.
  • the thread reserve 15 is formed from the thread 16 (FIG.
  • the operating device 9 has, among other things, a sleeve gripping device, designated overall by 17.
  • the sleeve gripping device 17 has an arm 19 which can be pivoted about the pivot axis 18 and on which a cop 21 which is rotatable about the axis of rotation 20 is mounted.
  • a pawl 22 is able to hold the head 21 in defined positions with the aid of catches 23. Otherwise, the head can be turned counterclockwise.
  • two counter-rotating shafts 24, 25 are fastened, which carry fingers 26, 27, 28, which can grip and hold a sleeve.
  • Fig. 1 shows that the fingers 26 to 28 of the sleeve gripping device 17 have removed the sleeve 6 from the sleeve magazine 10 and have brought the longitudinal axis 29 of the sleeve with the longitudinal axis 29 of a special winding device 30 (Fig. 2, Fig. 3) to coincide.
  • Fig. 3 indicates that the housing 9 ', 9 ⁇ of the operating device 9 is portal-like, which is to indicate the dash-dotted line 31. Because of the large portal height, it is not possible to show the entire portal in FIG. 3.
  • the operating device 9 can be moved on rails in a known manner. Rails and chassis are at the top outside of the drawing level.
  • FIG. 3 shows that the winding device 30 has a drive device for the sleeve 6, denoted overall by 32.
  • the drive device 32 has two rotatably mounted sleeve plates 33 and 34, both of which are longitudinally displaceable for the purpose of receiving and releasing the sleeve 6.
  • the sleeve plate 33 has an air passage bore 77 leading into the open. It is seated at the end of a shaft 35 which, according to FIG. 5, is connected to a sleeve drive element 36.
  • the sleeve drive element 36 has the shape of an electric geared motor.
  • the shaft 35 is supported in a longitudinally displaceable sleeve 38 by means of roller bearings 37.
  • the sleeve 38 is loaded by a compression spring 39 in the clamping direction of the sleeve 6 and slidably mounted in the housing part 9 ⁇ of the operating device 9.
  • the sleeve plate 34 has a central air passage bore 78 and a central suction pipe 43 therein.
  • the suction pipe 43 is connected to a controllable valve 80 by a line, which can be flexible, for example.
  • the valve 80 can optionally in the shut-off position and out of the shut-off position either on a suction air source 41 or on a compressed air source 79. If the valve 80 is placed on the suction air source 41, the suction pipe 43 is used to suck in the thread 16 connected to a take-off spool of the winding unit 1.
  • the suction pipe 43 is slidably mounted in the direction of the double arrow 44 in the housing part 9 'and with a provided against the sleeve interior suction opening 42.
  • the valve 80 is placed on the compressed air source 79.
  • the suction pipe 43 carries a rotatable sleeve receiving device 47 by means of two roller bearings 45, 46.
  • the sleeve receiving device 47 is connected on the left side to the sleeve plate 34 and a toothed collar 48 which overlaps the sleeve plate.
  • the sleeve receiving device 47 is designed as a pinion 49, which engages in a gear wheel 50 of a gear train designated 53 as a whole.
  • the gear train 53 belongs to a total of 54 winding counting devices.
  • the winding counting device 54 has a pulse sensor 55 which can be set to count a preselected number of pulses. The number of pulses is in proportion to the desired number of turns of the thread reserve.
  • the sleeve drive element 36 can be controlled by the pulse sensor 55.
  • the pulse sensor 55 begins to count. He switches off the sleeve drive element 36 as soon as he has counted the preselected number of pulses.
  • the winding counting device 54 also includes a pulse disk 58 which is provided with a magnet 57 and is connected to a further gear wheel 51 of the gear train 53.
  • the device 9 also has an automatic thread guide, which is denoted overall by 59.
  • the automatic thread guide has a guide element 63 leading the thread 16 according to FIG. 5 from the sleeve edge 61 to the starting point of the first turn 62.
  • the guide element 63 consists of a guide wire provided with a bead 64, which is seated on a lever 66 which can be pivoted about the pivot axis 65.
  • the automatic thread guide 59 also includes a feed device 67, consisting of a hook which is pivotally mounted on a rod 68 and can be pivoted by a pull rod 69.
  • the feed device 67 guides the thread 16 from the starting point of the first winding 62 from winding next to winding in the direction of the sleeve edge 61 and over the thread end 70.
  • the device 9 also has a separating device 71 for cutting excess thread length.
  • the separating device 71 has two separating knives 72, 73 which can be pivoted relative to one another and which can be controlled or operated by means of a shaft 74 by means of a shaft 74 which is present in the separating device 71 and is not shown here.
  • the excess thread length 70 is cut when the separating device 71 is actuated and sucked into the suction pipe 43.
  • the thread reserve is formed on the sleeve end 60 of the sleeve 6 (FIG. 3), for example, in the following way:
  • the operating device 9 here the cross-wound bobbin changing device
  • the winding unit 1 engages at the winding unit. It doesn't lift through here means shown on the coil frame 4, removes the clamped cheese and ensures that the coil frame 4 remains lifted from the grooved drum 3, as shown in FIG. 1.
  • the arm 19 of the sleeve gripping device 17 then pivots clockwise about the pivot axis 18, whereupon the head 21 is rotated counterclockwise. Then the arm 19 pivots back into the position shown in FIG. 1.
  • the fingers 26 to 28 are opened and brought up from above and below to the sleeve lying in the foremost position in the sleeve magazine 10.
  • the fingers grip the sleeve, for example the sleeve 6 shown in FIG. 1, and align it with the longitudinal axis 29, as shown in FIG. 1.
  • the valve 80 is placed on the suction air source 41.
  • the thread 16 originating from the payout spool is now presented to the suction opening 42 of the suction pipe 43 by suitable means. It is sucked into the suction pipe 43 and held there, as shown in FIG. 3.
  • the separating device 71 is open, the automatic thread guide 59 is still inoperative.
  • the suction pipe 43 is moved in the direction of the double arrow 44 to the left, so that the sleeve plate 34 lies against the right sleeve edge 61.
  • the thread 16 is clamped between the sleeve edge 61 and the sleeve plate 34 and held.
  • the fingers 26 to 28 of the sleeve gripping device 17 still hold the sleeve 6 firmly.
  • the left sleeve edge 61 'of the sleeve 6 comes into contact with the sleeve plate 33, the bearing sleeve 38 receding a little bit against the force of the compression spring 39. This gives the sleeve 6 the necessary clamping force.
  • the automatic thread guide 59 then comes into operation. 2, the lever 66 pivots clockwise about the pivot axis 65, so that the guide element detects the thread 16 and guides it towards the starting point of the first turn 62, as shown in FIG. 5 implies. At the same time, by moving the pull rod 69 to the left, the feed device 67 is brought into the starting position, which is also shown in FIG. 5. 4, the thread 16 now follows a path that is prescribed by the guide element 63 and the feed device 67. Meanwhile, the fingers 26 to 28 detach from the sleeve 6 after the sleeve 6 is clamped between the sleeve plates 33 and 34. When clamping, the toothed collar 48 guides the thread end over the sleeve edge 61.
  • the sleeve drive element 36 can now be switched on to form the thread reserve.
  • the gear 43 of the winding counting device 54 runs and at the same time the pull rod 69 of the feed device 67 moves in a controlled manner to the right, so that the thread 16 turns next to the winding from left to right the right sleeve end 60 is wound up.
  • FIG. 6 shows the finished thread reserve 15 with only a few turns that spill over the thread end 70 for drawing reasons.
  • the pulse sensor 55 switches the sleeve drive element 36 off again, so that the sleeve 6 comes to a standstill at the moment.
  • the pulse sensor 55 also sends a pulse to the automatic control system of the operating device 9, which is not shown here.
  • a cam disk package of a control device then starts, which is not shown in more detail here.
  • This cam disk package now controls the following processes: First, the fingers 26 to 28 rest on the sleeve 6, then the suction tube 43 is pulled back to the right, so that the sleeve 6 is released again from the sleeve plates 33 and 34, as shown in FIG. 6. Then the separator 71 is operated to cut off the excess thread length 70 'and leave only a desired, short thread end 70. In the meantime, the feed device 67 is pivoted back completely by the pull rod 69 and is thus rendered inoperative. The guide element 63 can now also be brought out of contact with the thread 16.
  • the thread reserve 62 is now formed.
  • the aforementioned cam disk package now controls the sleeve gripping device 17 as follows:
  • the arm 19 is rotated clockwise about the pivot axis 18 by a certain angle, so that the longitudinal axis 29 of the sleeve 6 comes into line with the winding axis 75 of the coil frame 4.
  • the sleeve 6, which is already provided with a thread reserve gets between the sleeve plates 5 of the bobbin frame 4, which then closes and clamps the sleeve 6.
  • the coil frame 4 is now lowered so that the sleeve 6 makes contact with the rotatable grooved drum 3 so that the winding operation can begin.
  • the fingers 26 to 28 detach from the sleeve 6 and the arm 19 swings back into the position shown in FIG. 1.
  • the operating device 9 has now done its job. It detaches from the winding unit 1 and, if necessary, moves on to another winding unit in order to operate there.
  • the separating device 71 can alternatively remain inoperative.
  • the pulse sensor 55 can switch the valve 80 to the compressed air source 79 when the sleeve drive element 36 is switched off, as a result of which the end section 76 (FIG. 6) of the thread end is guided around the sleeve edge 61 and deposited in the sleeve 6.

Description

Die Erfindung betrifft ein Verfahren zum Herstellen einer Fadenreserve auf dem Hülsenende eine Kreuzspule, bestehend aus mehreren, nicht zum Kreuzspulenwickel gehörenden Windungen, wobei der Faden vom Hülsenrand aus bis zum Anfangspunkt der ersten Windung der Fadenreserve geleitet und dann der Faden in sich gegenseitig nicht überkreuzenden Windungen, das Fadenende kreuzend und festhaltend, in Richtung auf den Hülsenrand zu abgelegt wird, sowie eine Vorrichtung zur Durchführung des Verfahrens.The invention relates to a method for producing a thread reserve on the tube end of a cross-wound bobbin, consisting of a plurality of turns not belonging to the cross-wound bobbin, the thread being guided from the edge of the tube to the starting point of the first turn of the thread reserve and then the thread in turns which do not cross each other , crossing the thread end and holding it down, towards the edge of the tube, and a device for carrying out the method.

Bei der Weiterverarbeitung von Kreuzspulen ist es hilfreich, wenn auf einem der Hülsenenden eine Fadenreserve gebildet wird, die außerhalb des eigentlichen Wickelkörpers liegt. Diese Fadenreserve kann zum Anknüpfen an andere Fäden ablaufender Spulen oder zum Einführen in weiterverarbeitende Maschinen genutzt werden, ohne daß dazu auf den eigentlichen Wickelkörper zurückgegriffen werden muß. Wird aber eine Fadenreserve gebildet, indem der Fadenanfang als Sehne zwischen Hülsenteller und Hülsenrand in den Spulenrahmen eingespannt wird und werden danach beide Sehnenenden mit mehreren Lagen der Reservewicklung überspult, so laufen die Windungen mehr oder weniger zufällig auf die Hülse auf. In vielen Fällen ist die Fadensehne nicht fixiert und löst sich. Dies kann zum Verlust der gesamten Reservewicklung führen.When processing cross-wound bobbins, it is helpful if a thread reserve is formed on one of the tube ends, which lies outside the actual winding body. This thread reserve can be used for connecting to other threads of running bobbins or for insertion into further processing machines without having to resort to the actual winding body. However, if a thread reserve is formed by clamping the thread start as a chord between the core plate and the edge of the core in the spool frame and then both ends of the chord are spooled with several layers of the reserve winding, the windings run more or less randomly onto the core. In many cases the string is not fixed and loosens. This can lead to the loss of the entire reserve winding.

Es ist deshalb aus der DE-A1 25 03 299 bekannt, Fadenreserven auf den Hülsenenden zu bilden, wobei der Faden an einer Stelle zwischen dem auf der Spulenhülse vorgesehenen Bereich der Resevewicklung und dem Wickelkörper aufgebracht und danach in Richtung auf den Hülsenrand zugeführt wird, wobei das freie Fadenende mit gegenseitig sich nicht überkreuzenden Windungen festgelegt wird. Die Bildung einer Fadenreserve ist ein zusätzlicher Arbeitsschritt vor dem eigentlichen Spulen. Wird er an der Spulstelle selbst durchgeführt, so müssen an jeder Spulstelle Mittel zur Bildung der Fadenreserve vorhanden sein.It is therefore known from DE-A1 25 03 299 to form thread reserves on the tube ends, the thread being applied at a point between the area of the reserve winding provided on the bobbin tube and the winding former and then being fed in the direction of the tube edge, whereby the free thread end is determined with mutually non-crossing turns. The formation of a thread reserve is an additional step before the actual winding. If it is carried out at the winding unit itself, means for forming the thread reserve must be available at each winding unit.

Aus der DE-A1 33 44 645 ist eine Vorrichtung zum Bilden einer Fadenreservewicklung bekannt, bei der ebenfalls die Bildung der Fadenreserve an der jeweiligen Spulstelle selbst erfolgt. Zur Bildung der Fadenreserve muß an jeder Spulvorrichtung ein zum Fangen des Fadens besonders ausgebildeter Spulteller des Spulenhalters vorgesehen sein, der radial ausgerichtete Schlitze zum Fangen des Fadens aufweist. Jede dieser Spulstellen erfordert somit zur Herstellung einer Fadenreserve eine zusätzliche apparative Ausstattung.From DE-A1 33 44 645 a device for forming a thread reserve winding is known, in which the thread reserve is also formed at the respective winding unit itself. To form the thread reserve, a bobbin plate of the bobbin holder specially designed for catching the thread must be provided on each winding device, which has radially aligned slots for catching the thread. Each of these winding units therefore requires additional equipment to produce a thread reserve.

Eine Fadenreserve soll möglichst nur eine solche Anzahl von Fadenwindungen enthalten, wie für die weitere Handhabung unbedingt erforderlich ist. Die Anzahl der Windungen sollte immer gleich groß sein. Spulenhülsen mit unterschiedlich großen Fadenreserven erschweren die weitere Handhabung. Bei der Vorrichtung der DE-A1 33 44 645 wird die Größe der zu bildenden Fadenreserve nicht überwacht, was zu Fadenreserven mit unterschiedlichen Fadenlängen führen kann.A thread reserve should only contain such a number of thread turns as is absolutely necessary for further handling. The number of turns should always be the same. Bobbin tubes with different thread reserves make further handling difficult. In the device of DE-A1 33 44 645, the size of the thread reserve to be formed is not monitored, which can lead to thread reserves with different thread lengths.

Der Erfindung liegt die Aufgabe zugrunde, eine leicht lösbare Fadenreserve zu bilden, die sich mit einfachen Mitteln in reproduzierbarer Güte herstellen läßt, ohne Einsatz der eigentlichen Spulstelle.The invention has for its object to form an easily releasable thread reserve that can be produced with simple means in reproducible quality, without using the actual winding unit.

Gemäß der Erfindung wird diese Aufgabe dadurch gelöst, daß der Faden in einer Länge von mindestens einigen Zentimetern in ein zentrales, in einem rotierbaren Hülsenteller angeordnetes Saugrohr eingesaugt, dann eine Hülse zwischen diesen und einen weiteren rotierbaren Hülsenteller eingespannt und dabei der Faden zwischen Hülsenteller und Hülsenrand festgehalten wird. Dann wird in bekannter Weise der Faden vom Hülsenrand aus bis zum Ausgangspunkt der ersten Windung geleitet und die Fadenreserve aus einer vorgebbaren Anzahl von Windungen gebildet. Anschließend wird erfindungsgemäß entweder die Rotation der Hülse zum Stillstand gebracht, die Hülse ausgespannt und zum Hochwickeln der Kreuzspule an eine Hülsenaufnahmevorrichtung einer Spulstelle übergeben oder vor dem Stillstand der Hülse eine Mehrzahl von Kreuzlagen des späteren Kreuzspulenwickels auf die Hülse aufgebracht und erst danach die Hülse ausgespannt und an eine Hülsenaufnahmevorrichtung einer die Kreuzspule hochwickelnden Spulstelle übergeben.According to the invention, this object is achieved in that the thread is sucked in a length of at least a few centimeters into a central suction tube arranged in a rotatable sleeve plate, then clamped a sleeve between these and another rotatable sleeve plate and thereby the thread between the sleeve plate and the sleeve edge is held. Then the thread is guided in a known manner from the sleeve edge to the starting point of the first turn and the thread reserve is formed from a predeterminable number of turns. Subsequently, according to the invention, either the rotation of the sleeve is brought to a standstill, the sleeve is unclamped and transferred to a tube take-up device of a winding unit for winding up the cross-wound bobbin, or a plurality of cross-layers of the later cross-wound bobbin winding are applied to the tube before the tube comes to a standstill and only then is the tube unclamped and transferred to a tube take-up device of a winding unit that winds up the package.

Vorteilhaft wird die Fadenreserve an einer eigenen Spulstelle gebildet, außerhalb der Spulstelle, die mit der neuen Hülse beschickt werden soll. Außerdem sind sämtliche für diesen Fadenreservebildungsprozeß erforderlichen Einrichtungen an der Spulstelle nicht erforderlich, sondern nur einmal vorhanden..The thread reserve is advantageously formed at a separate winding unit, outside the winding unit, which is to be loaded with the new tube. In addition, all the facilities required for this thread reserve formation process are not required at the winding unit, but are only available once.

Das erfindungsgemäße zentrale Saugrohr der Vorrichtung, das beispielsweise stationär zentral im Hülsenteller angeordnet sein kann, verhindert die Sehnenbildung des Fadens und die damit verbundenen Nachteile. Durch das Aufbringen von Anfangswindungen des Kreuzspulenwickels wird ein unbeabsichtigtes Wiederauflösen der Fadenreserve verhindert. Die Fadenreserve kann vom Ende her ohne Schwierigkeiten und ohne unzulässig hohe Fadenspannungen und die damit verbundene Gefahr von Beschädigungen aufgelöst werden. Der Faden wird unter den Windungen hervorgezogen, wobei die Windungen sich der Reihe nach auflösen und auch die letzte Windung dem Reservefaden noch Halt gibt.The central suction tube of the device according to the invention, which can for example be arranged in a stationary manner centrally in the sleeve plate, prevents the formation of chords in the thread and the disadvantages associated therewith. By applying initial turns of the package, a prevents unintentional redissolving of the thread reserve. From the end, the thread reserve can be released without difficulty and without impermissibly high thread tensions and the associated risk of damage. The thread is drawn out from under the turns, the turns dissolving one after the other and the last turn still holding the reserve thread.

Vorteilhaft wird nach dem Ausspannen der Hülse der Faden zwischen Saugrohr und Hülsenrand gekappt und dabei ein maximal 1 cm langer, unter den überspulenden Windungen der Fadenreserve herausragender Endabschnitt des Fadens gebildet. Das den Hülsenrand nunmehr nur noch geringfügig überragende Fadenende kann nicht mehr so leicht zerstört, abgequetscht oder beschädigt werden. Es wird im allgemeinen bei späteren Einspannvorgängen wegen seiner Kürze nicht mehr zwischen Hülsenrand und Hülsenteller eingequetscht.After the sleeve has been unclamped, the thread is advantageously cut between the suction tube and the edge of the sleeve, thereby forming an end section of the thread which is a maximum of 1 cm long and protrudes under the winding turns of the thread reserve. The thread end which now only slightly protrudes from the sleeve edge can no longer be easily destroyed, squeezed or damaged. It is generally no longer squeezed between the edge of the sleeve and the sleeve plate during later clamping operations because of its brevity.

Alternativ ist in Weiterbildung der Erfindung vorgesehen, daß nach dem Einspannen der Hülse zwischen die rotierbaren Hülsenteller beziehungsweise vor der Übergabe der mit der Fadenreserve vorgesehenen Hülse an die Hülsenaufnahmevorrichtung der Spulstelle der in das Saugrohr hinein eingesaugte, mindestens einige Zentimeter lange Endabschnitt des Fadens durch Umkehren der Saugströmung in die Hülse eingebracht wird. Dabei entsteht ein leicht auffindbares neues Fadenende und das entstandene Restfadenstück ist im Inneren der Hülse sicher deponiert und kann nicht so leicht eingespult werden.Alternatively, in a further development of the invention it is provided that after the sleeve is clamped between the rotatable sleeve plates or before the sleeve provided with the thread reserve is transferred to the sleeve receiving device of the winding unit, the end section of the thread sucked into the suction tube and at least a few centimeters long by reversing the Suction flow is introduced into the sleeve. This creates an easy-to-find new thread end and the resulting piece of remaining thread is safely deposited inside the sleeve and cannot be wound in so easily.

Die erfindungsgemäße Vorrichtung zur Durchführung des Verfahrens besitzt eine besondere Spuleinrichtung, die nicht mit der Spuleinrichtung einer die Kreuzspule hochwickelnden Spulstelle identisch ist. Damit können die Spulstellen freigehalten werden von Vorrichtungsmerkmalen, die zur Bildung einer Fadenreserve auf dem Ende einer Spulenhülse erforderlich sind.The device according to the invention for carrying out the method has a special winding device which is not identical to the winding device of a winding unit which winds up the cheese. This allows the winding units to be kept free of device features that lead to formation a thread reserve on the end of a bobbin are required.

Die Spuleinrichtung besitzt eine eigene Antriebsvorrichtung für die Hülse und die Antriebsvorrichtung zwei rotierbar gelagerte Hülsenteller, von denen mindestens einer zwecks Aufnahme und Freigabe der Hülse längsverschiebbar ist. Die Vorrichtung ist mit einer Fadenleitautomatik, mit einem den Faden vom Hülsenrand aus zum Anfangspunkt der ersten Windung führenden Leitelement und einer den Faden anschließend Windung neben Windung in Richtung auf den Hülsenrand über das Fadenende leitenden Vorschubeinrichtung ausgestattet. Weiterhin besitzt sie eine Windungszähleinrichtung zum Zählen der Windungen der Fadenreserve, was ein genaues Abmessen der Fadenreserve ermöglicht. Die erforderliche Fadenreserve kann zuvor eingestellt werden und wird erfindungsgemäß dadurch eingehalten, daß ein Hülsenantriebselement der Antriebsvorrichtung durch die Windungszähleinrichtung steuerbar ist.The winding device has its own drive device for the sleeve and the drive device has two rotatably mounted sleeve plates, at least one of which is longitudinally displaceable for the purpose of receiving and releasing the sleeve. The device is equipped with an automatic thread guide, with a guide element guiding the thread from the sleeve edge to the starting point of the first turn and a turn following the thread next to turn in the direction of the sleeve edge via the thread end conducting feed device. Furthermore, it has a winding counting device for counting the turns of the thread reserve, which enables an exact measurement of the thread reserve. The required thread reserve can be set beforehand and is maintained in accordance with the invention in that a sleeve drive element of the drive device can be controlled by the winding counting device.

Die Antriebsvorrichtung kann beispielsweise so konstruiert sein, daß sie einen der beiden Hülsenteller antreibt. Sie kann aber auch so konstruiert sein, daß sie mit einem Reibrad die Hülse selbst antreibt.The drive device can, for example, be designed so that it drives one of the two sleeve plates. But it can also be designed so that it drives the sleeve itself with a friction wheel.

In Weiterbildung der Erfindung besitzt die Spuleinrichtung zum Herstellen eines maximal 1 cm unter den überspulenden Windungen der Fadenreserve herausragenden Endabschnittes des Fadenendes eine in der Nähe des Hülsenrandes operierende Trennvorrichtung zum Kappen überschüssiger Fadenlänge.In a further development of the invention, the winding device for producing an end section of the thread end that protrudes a maximum of 1 cm below the winding windings of the thread reserve has a separating device that operates in the vicinity of the sleeve edge for cutting excess thread length.

In Weiterbildung der Erfindung besitzt einer der beiden rotierbaren Hülsenteller ein zentrales, an eine Saugluftquelle angeschlossenes und mit einer gegen das Hülseninnere gerichteten Ansaugöffnung versehenes Saugrohr zum Ansaugen eines mit der Ablaufspule einer Spulstelle verbundenen Fadens, aus dem nach dem Ansaugen und nach dem Einspannen der Hülse zwischen die Hülsenteller die Fadenreserve entsteht. Als Saugluftquelle kann beispielsweise ein Injektor dienen.In a further development of the invention, one of the two rotatable sleeve plates has a central suction pipe connected to a suction air source and provided with a suction opening directed towards the inside of the sleeve for sucking in a thread connected to the take-off spool of a winding unit, from which after suction and after clamping the sleeve between the core plate creates the thread reserve. For example, an injector can serve as the source of suction air.

In Weiterbildung der Erfindung besitzen die beiden rotierbar gelagerten Hülsenteller zum Deponieren des Endabschnittes des Fadenendes im Inneren der Hülse Luftdurchtrittsbohrungen. Zugleich weist das Saugrohr ein wahlweise auf die Saugluftquelle auf Absperrstellung und auf eine Druckluftquelle stellbares Ventil auf. Durch Stellen des Ventils aus der Absperrstellung heraus auf Saugen kann ein dem Saugrohr vorgelegtes, von einer Ablaufspule kommendes Fadenende angesaugt werden. Nach dem Bilden der Fadenreserve oder auch schon während des Bildens der Fadenreserve, nachdem der Faden zwischen Hülsenrand und Hülsenteller eingeklemmt ist, kann das Ventil auf Blasen gestellt und dadurch die angesaugte Fadenlänge in das Innere der Hülse eingeblasen werden.In a further development of the invention, the two rotatably mounted sleeve plates for depositing the end section of the thread end in the interior of the sleeve have air passage bores. At the same time, the suction pipe has a valve which can be optionally set to the shut-off position of the suction air source and to a compressed air source. By placing the valve out of the shut-off position on suction, a thread end coming from a payout spool can be sucked into the suction pipe. After the thread reserve has been formed or even while the thread reserve is being formed, after the thread is clamped between the sleeve edge and the sleeve plate, the valve can be set to bubbles and the length of thread drawn in can be blown into the interior of the sleeve.

In Weiterbildung der Erfindung ist vorgesehen, daß die Vorrichtung Bestandteil einer fahrbaren, von Spulstelle zu Spulstelle einer Kreuzspulen herstellenden Maschine wanderfähigen Bedienungsvorrichtung ist und mit deren Hülsengreifeinrichtung insofern zusammenarbeitet, als die Hülsengreifeinrichtung eine leere Hülse aus einem Hülsenmagazin entnimmt und den Hülsentellern der Spuleinrichtung vorlegt, während des Bildens der Fadenreserve die Hülse freigibt, danach wieder erfaßt und einer Hülsenaufnahmevorrichtung einer Spulstelle der Kreuzspulen herstellenden Maschine vorlegt. Das Hülsenmagazin befindet sich wahlweise an der Spulstelle oder an der wanderfähigen Bedienungsvorrichtung. Die Bedienungsvorrichtung ist zweckmäßig als Spulenwechselvorrichtung ausgebildet.In a further development of the invention it is provided that the device is part of a mobile operating device which can be moved from winding station to winding station of a cross-wound bobbin and cooperates with its sleeve gripping device insofar as the sleeve gripping device is a removes empty tube from a tube magazine and presents it to the tube plates of the winding device, releases the tube during the formation of the thread reserve, then detects it again and presents it to a tube receiving device of a winding unit of the machine producing the bobbin. The sleeve magazine is located either on the winding unit or on the mobile operating device. The operating device is expediently designed as a bobbin changing device.

Anhand eines zeichnerisch dargestellten Ausführungsbeispiels wird die Erfindung naher beschrieben und erläutert.

Fig. 1
zeigt in Seitenansicht Teile einer Spulstelle und einer von Spulstelle zu Spulstelle wanderfähigen Bedienungsvorrichtung.
Fig. 2
zeigt weitere Einzelheiten der Bedienungsvorrichtung.
Fig. 3
zeigt an der Bedienungsvorrichtung die Vorrichtung zum Herstellen einer Fadenreserve in Vorderansicht.
Fig. 4
zeigt in Seitenansicht den Fadenlauf während des Bildens der Fadenreserve.
Fig. 5
zeigt das Legen der ersten Windung der Fadenreserve.
Fig. 6
zeigt den Zustand der Hülse und der Vorrichtung nach dem Herstellen der Fadenreserve.
The invention is described and explained in more detail with reference to an exemplary embodiment shown in the drawing.
Fig. 1
shows a side view of parts of a winding unit and an operating device which can be moved from winding unit to winding unit.
Fig. 2
shows further details of the operating device.
Fig. 3
shows on the operating device, the device for producing a thread reserve in front view.
Fig. 4
shows the side view of the thread path while forming the thread reserve.
Fig. 5
shows the laying of the first turn of the thread reserve.
Fig. 6
shows the state of the sleeve and the device after the manufacture of the thread reserve.

Fig. 1 zeigt die Spulstelle 1 einer Kreuzspulen herstellenden Maschine. Es handelt sich um einen Kreuzspulautomaten, der eine Mehrzahl gleichartiger Spulstellen besitzt, die in Blickrichtung hintereinander liegen sollen. Das Maschinengestell 2 der Spulstelle 1 trägt unter anderem eine Nutentrommel 3 zum Antreiben der herzustellenden Kreuzspule und als Hülsenaufnahmevorrichtung einen schwenkbaren Spulenrahmen 4, der zwischen rotierbaren Hülsentellern 5 die Hülse eingespannt hält, auf der später der Kreuzspulenwickel hochgewickelt werden soll.1 shows the winding unit 1 of a machine producing cross-wound bobbins. It is a cross-winder, which has a plurality of identical winding units, which should be one behind the other in the direction of view. The machine frame 2 of the winding unit 1 carries, among other things, a grooved drum 3 for driving the cheese to be produced and as a tube take-up device a pivotable coil frame 4, which holds the sleeve clamped between rotatable sleeve plates 5, on which the cross-wound bobbin is later to be wound up.

Fig. 1 zeigt, daß der Spulenrahmen 4 hochgeschwenkt ist und noch keine Hülse aufgenommen hat. Eine Hülse 6 befindet sich im Bereich einer wanderfähigen Bedienungsvorrichtung 9, zwei weitere Hülsen 7 und 8 liegen noch in einem Hülsenmagazin 10 der Spulstelle 1. Es handelt sich um konische Hülsen zum Wickeln konischer Kreuzspulen. Das Hülsenmagazin 10 besitzt zwei Kufen 11 und 12, auf denen die Hülsen aufliegen. Nach außen hin sind die Kufen 11 und 12 durch Seitenwände 13 und 14 begrenzt.Fig. 1 shows that the coil frame 4 is pivoted up and has not yet received a sleeve. A sleeve 6 is located in the area of a mobile operating device 9, two further sleeves 7 and 8 are still in a sleeve magazine 10 of the winding unit 1. They are conical sleeves for winding conical cross-wound bobbins. The sleeve magazine 10 has two runners 11 and 12 on which the sleeves rest. To the outside, the runners 11 and 12 are delimited by side walls 13 and 14.

Bei der Bedienungsvorrichtung 9 handelt es sich um einen automatischen Kreuzspulenwechsler. Er hat die Aufgabe, eine fertiggewickelte Kreuzspule aus dem Spulenrahmen 4 zu entfernen und an ihre Stelle eine mit einer Fadenreserve 15 (Fig. 6) versehene Hülse, beispielsweise die Hülse 6, dem Spulenrahmen 4 vorzulegen, der die Hülse dann zwischen seine Hülsenteller 5 einspannt und gegen die rotierbare Nutentrommel 3 zur Anlage bringt. Die Fadenreserve 15 wird aus dem von einer hier nicht dargestellten Ablaufspule nachlieferbaren Faden 16 (Fig. 6) gebildet, so daß nach dem Einspannen der Hülse 6 in den Spulenrahmen 4 und nach dem Herstellen des Friktionskontakts zwischen Nutentrommel 3 und Hülse 6 das Wickeln einer Kreuzspule beginnen kann.The operating device 9 is an automatic cross-wound bobbin changer. It has the task of removing a fully wound cross-wound bobbin from the bobbin frame 4 and in its place to provide a bobbin with a thread reserve 15 (FIG. 6), for example the bobbin 6, the bobbin frame 4, which then clamps the bobbin between its bobbin plates 5 and brings against the rotatable grooved drum 3 to the plant. The thread reserve 15 is formed from the thread 16 (FIG. 6), which can be supplied by a supply spool (not shown here), so that after the sleeve 6 has been clamped in the spool frame 4 and after the frictional contact between the slot drum 3 and the sleeve 6, the winding of a cross-wound bobbin can start.

Gemäß Fig. 1 besitzt die Bedienungsvorrichtung 9 unter anderem eine insgesamt mit 17 bezeichnete Hülsengreifeinrichtung. Die Hülsengreifeinrichtung 17 besitzt einen um die Schwenkachse 18 schwenkbaren Arm 19, an dem ein um die Drehachse 20 drehbarer Kops 21 gelagert ist. Eine Klinke 22 ist in der Lage, den Kopf 21 mit Hilfe von Rasten 23 in definierten Stellungen festzuhalten. Im übrigen ist der Kopf gegen den Uhrzeigersinn drehbar.1, the operating device 9 has, among other things, a sleeve gripping device, designated overall by 17. The sleeve gripping device 17 has an arm 19 which can be pivoted about the pivot axis 18 and on which a cop 21 which is rotatable about the axis of rotation 20 is mounted. A pawl 22 is able to hold the head 21 in defined positions with the aid of catches 23. Otherwise, the head can be turned counterclockwise.

Im Kopf 21 sind zwei gegensinnig drehbare Wellen 24, 25 befestigt, die Finger 26, 27, 28 tragen, welche eine Hülse ergreifen und festhalten können.In the head 21, two counter-rotating shafts 24, 25 are fastened, which carry fingers 26, 27, 28, which can grip and hold a sleeve.

Fig. 1 zeigt, daß die Finger 26 bis 28 der Hülsengreifeinrichtung 17 die Hülse 6 aus dem Hülsenmagazin 10 entnommen und die Hülsenlängsachse mit der Längsachse 29 einer besonderen Spuleinrichtung 30 (Fig. 2, Fig. 3) zur Deckung gebracht haben.Fig. 1 shows that the fingers 26 to 28 of the sleeve gripping device 17 have removed the sleeve 6 from the sleeve magazine 10 and have brought the longitudinal axis 29 of the sleeve with the longitudinal axis 29 of a special winding device 30 (Fig. 2, Fig. 3) to coincide.

Fig. 3 deutet an, daß das Gehäuse 9′, 9˝ der Bedienungsvorrichtung 9 portalähnlich ausgebildet ist, was die strichpunktierte Linie 31 andeuten soll. Wegen der großen Portalhöhe ist es nicht möglich, das ganze Portal in Fig. 3 darzustellen. Die Bedienungsvorrichtung 9 ist in bekannter Weise auf Schienen verfahrbar. Schienen und Fahrgestelle befinden sich oben außerhalb der Zeichenebene.Fig. 3 indicates that the housing 9 ', 9˝ of the operating device 9 is portal-like, which is to indicate the dash-dotted line 31. Because of the large portal height, it is not possible to show the entire portal in FIG. 3. The operating device 9 can be moved on rails in a known manner. Rails and chassis are at the top outside of the drawing level.

Insbesondere Fig. 3 zeigt, daß die Spuleinrichtung 30 eine insgesamt mit 32 bezeichnete Antriebsvorrichtung für die Hülse 6 besitzt. Die Antriebsvorrichtung 32 weist zwei rotierbar gelagerte Hülsenteller 33 und 34 auf, die beide zwecks Aufnahme und Freigabe der Hülse 6 längsverschiebbar sind. Der Hülsenteller 33 hat eine ins Freie führende Luftdurchtrittsbohrung 77. Er sitzt am Ende einer Welle 35, die gemäß Fig. 5 mit einem Hülsenantriebselement 36 verbunden ist. Das Hülsenantriebselement 36 hat die Gestalt eines elektrischen Getriebemotors. Mittels Wälzlager 37 ist die Welle 35 in einer längsverschiebbaren Hülse 38 gelagert. Die Hülse 38 ist durch eine Druckfeder 39 in Einspannrichtung der Hülse 6 belastet und verschiebbar im Gehäuseteil 9˝ der Bedienungsvorrichtung 9 gelagert.In particular, FIG. 3 shows that the winding device 30 has a drive device for the sleeve 6, denoted overall by 32. The drive device 32 has two rotatably mounted sleeve plates 33 and 34, both of which are longitudinally displaceable for the purpose of receiving and releasing the sleeve 6. The sleeve plate 33 has an air passage bore 77 leading into the open. It is seated at the end of a shaft 35 which, according to FIG. 5, is connected to a sleeve drive element 36. The sleeve drive element 36 has the shape of an electric geared motor. The shaft 35 is supported in a longitudinally displaceable sleeve 38 by means of roller bearings 37. The sleeve 38 is loaded by a compression spring 39 in the clamping direction of the sleeve 6 and slidably mounted in the housing part 9˝ of the operating device 9.

Der Hülsenteller 34 besitzt eine zentrale Luftdurchtrittsbohrung 78 und darin ein zentrales Saugrohr 43. Das Saugrohr 43 ist durch eine Leitung, die beispielsweise flexibel sein kann, an ein steuerbares Ventil 80 angeschlossen. Das Ventil 80 kann wahlweise auf Absperrstellung und aus der Absperrstellung heraus entweder auf eine Saugluftquelle 41 oder auf eine Druckluftquelle 79 gestellt werden. Wird das Ventil 80 auf die Saugluftquelle 41 gestellt, so dient das Saugrohr 43 zum Ansaugen des mit einer Ablaufspule der Spulstelle 1 verbundenen Faden 16. Zu diesem Zweck ist das Saugrohr 43 in Richtung des Doppelpfeils 44 in dem Gehäuseteil 9′ verschiebbar gelagert und mit einer gegen das Hülseninnere gerichteten Ansaugöffnung 42 versehen. Soll der angesaugte Endabschnitt 76 des angesaugten Fadenendes im Verlauf der Herstellung der Fadenreserve oder nach dem Herstellen der Fadenreserve in das Hülseninnere eingebracht werden, wie es Fig. 6 zeigt, so wird das Ventil 80 auf die Druckluftquelle 79 gestellt.The sleeve plate 34 has a central air passage bore 78 and a central suction pipe 43 therein. The suction pipe 43 is connected to a controllable valve 80 by a line, which can be flexible, for example. The valve 80 can optionally in the shut-off position and out of the shut-off position either on a suction air source 41 or on a compressed air source 79. If the valve 80 is placed on the suction air source 41, the suction pipe 43 is used to suck in the thread 16 connected to a take-off spool of the winding unit 1. For this purpose, the suction pipe 43 is slidably mounted in the direction of the double arrow 44 in the housing part 9 'and with a provided against the sleeve interior suction opening 42. If the sucked-in end section 76 of the sucked-in thread end is to be introduced into the interior of the sleeve in the course of the manufacture of the thread reserve or after the manufacture of the thread reserve, as shown in FIG. 6, the valve 80 is placed on the compressed air source 79.

Das Saugrohr 43 trägt mittels zweier Wälzlager 45, 46 eine rotierbare Hülsenaufnahmevorrichtung 47. Die Hülsenaufnahmevorrichtung 47 ist auf der linken Seite mit dem Hülsenteller 34 und einem den Hülsenteller übergreifenden gezahnten Kragen 48 verbunden. Auf dem rechten, gehäuseseitigen Ende ist die Hülsenaufnahmevorrichtung 47 als Ritzel 49 ausgebildet, das in ein Zahnrad 50 eines insgesamt mit 53 bezeichneten Rädergetriebes eingreift. Das Rädergetriebe 53 gehört zu einer insgesamt mit 54 bezeichneten Windungszähleinrichtung. Die Windungszähleinrichtung 54 besitzt einen Impulssensor 55, der auf das Zählen einer vorgewählten Anzahl Impulse einstellbar ist. Die Anzahl der Impulse ist der gewünschten Windungszahl der Fadenreserve verhältnisgleich. Vom Impulssensor 55 besteht eine Wirkverbindung 56 zum Hülsenantriebselement 36. Das Hülsenantriebselement 36 ist durch den Impulssensor 55 steuerbar. Mit Anlaufen des Hülsenantriebselements 36 fängt der Impulssensor 55 an zu zählen. Er schaltet das Hülsenantriebselement 36 aus, sobald er die vorgewählte Anzahl Impulse gezählt hat.The suction pipe 43 carries a rotatable sleeve receiving device 47 by means of two roller bearings 45, 46. The sleeve receiving device 47 is connected on the left side to the sleeve plate 34 and a toothed collar 48 which overlaps the sleeve plate. On the right-hand end on the housing side, the sleeve receiving device 47 is designed as a pinion 49, which engages in a gear wheel 50 of a gear train designated 53 as a whole. The gear train 53 belongs to a total of 54 winding counting devices. The winding counting device 54 has a pulse sensor 55 which can be set to count a preselected number of pulses. The number of pulses is in proportion to the desired number of turns of the thread reserve. There is an operative connection 56 from the pulse sensor 55 to the sleeve drive element 36. The sleeve drive element 36 can be controlled by the pulse sensor 55. When the sleeve drive element 36 starts up, the pulse sensor 55 begins to count. He switches off the sleeve drive element 36 as soon as he has counted the preselected number of pulses.

Zur Windungszähleinrichtung 54 gehört ferner eine mit einem Magneten 57 versehene Impulsscheibe 58, die mit einem weiteren Zahnrad 51 des Rädergetriebes 53 verbunden ist.The winding counting device 54 also includes a pulse disk 58 which is provided with a magnet 57 and is connected to a further gear wheel 51 of the gear train 53.

Die Vorrichtung 9 besitzt ferner eine Fadenleitautomatik, die insgesamt mit 59 bezeichnet ist. Die Fadenleitautomatik besitzt ein den Faden 16 gemäß Fig. 5 vom Hülsenrand 61 aus zum Anfangspunkt der ersten Windung 62 führendes Leitelement 63. Das Leitelement 63 besteht aus einem mit einer Sicke 64 versehenen Leitdraht, der an einem um die Schwenkachse 65 schwenkbaren Hebel 66 sitzt.The device 9 also has an automatic thread guide, which is denoted overall by 59. The automatic thread guide has a guide element 63 leading the thread 16 according to FIG. 5 from the sleeve edge 61 to the starting point of the first turn 62. The guide element 63 consists of a guide wire provided with a bead 64, which is seated on a lever 66 which can be pivoted about the pivot axis 65.

Zur Fadenleitautomatik 59 gehört außerdem eine Vorschubeinrichtung 67, bestehend aus einem Haken, der schwenkbar auf einer Stange 68 gelagert und durch eine Zugstange 69 schwenkbar ist. Die Vorschubeinrichtung 67 leitet den Faden 16 vom Anfangspunkt der ersten Windung 62 aus Windung neben Windung in Richtung auf den Hülsenrand 61 und über das Fadenende 70.The automatic thread guide 59 also includes a feed device 67, consisting of a hook which is pivotally mounted on a rod 68 and can be pivoted by a pull rod 69. The feed device 67 guides the thread 16 from the starting point of the first winding 62 from winding next to winding in the direction of the sleeve edge 61 and over the thread end 70.

Die Vorrichtung 9 besitzt außerdem eine Trennvorrichtung 71 zum Kappen überschüssiger Fadenlänge. Die Trennvorrichtung 71 besitzt zwei gegenseitig gegeneinander schwenkbare Trennmesser 72, 73, die uber ein in der Trennvorrichtung 71 vorhandenes, hier nicht näher dargestelltes Rädergetriebe mittels einer Welle 74 steuerbar beziehungsweise scherenartig betätigkeit sind. Am Fadenende 70 wird die überschüssige Fadenlänge 70, beim Betätigen der Trennvorrichtung 71 gekappt und in das Saugrohr 43 hinein abgesaugt.The device 9 also has a separating device 71 for cutting excess thread length. The separating device 71 has two separating knives 72, 73 which can be pivoted relative to one another and which can be controlled or operated by means of a shaft 74 by means of a shaft 74 which is present in the separating device 71 and is not shown here. At the thread end 70, the excess thread length 70 is cut when the separating device 71 is actuated and sucked into the suction pipe 43.

Das Bilden der Fadenreserve auf dem Hülsenende 60 der Hülse 6 (Fig. 3) geschieht zum Beispiel auf folgende Weise:
Zunächst fährt die Bedienungsvorrichtung 9, hier also die Kreuzspulenwechselvorrichtung, an die Spulstelle 1 heran und rastet an der Spulstelle ein. Sie hebt durch hier nicht dargestellte Mittel den Spulenrahmen 4 an, entfernt die eingespannte Kreuzspule und sorgt dafür, daß der Spulenrahmen 4 von der Nutentrommel 3 abgehoben bleibt, wie es Fig. 1 zeigt. Danach schwenkt der Arm 19 der Hülsengreifeinrichtung 17 um die Schwenkachse 18 im Uhrzeigersinn, worauf der Kopf 21 gegen den Uhrzeigersinn gedreht wird. Dann schwenkt der Arm 19 wieder in die in Fig. 1 dargestellte Lage zurück. Durch gegensinniges Drehen der Wellen 24 und 25 werden die Finger 26 bis 28 geöffnet, von oben und unten her an die im Hülsenmagazin 10 in vorderster Position liegende Hülse herangebracht. Die Finger ergreifen die Hülse, beispielsweise die in Fig. 1 dargestellte Hülse 6, und richten sie zur Längsachse 29 aus, wie es Fig. 1 zeigt.The thread reserve is formed on the sleeve end 60 of the sleeve 6 (FIG. 3), for example, in the following way:
First of all, the operating device 9, here the cross-wound bobbin changing device, approaches the winding unit 1 and engages at the winding unit. It doesn't lift through here means shown on the coil frame 4, removes the clamped cheese and ensures that the coil frame 4 remains lifted from the grooved drum 3, as shown in FIG. 1. The arm 19 of the sleeve gripping device 17 then pivots clockwise about the pivot axis 18, whereupon the head 21 is rotated counterclockwise. Then the arm 19 pivots back into the position shown in FIG. 1. By turning the shafts 24 and 25 in opposite directions, the fingers 26 to 28 are opened and brought up from above and below to the sleeve lying in the foremost position in the sleeve magazine 10. The fingers grip the sleeve, for example the sleeve 6 shown in FIG. 1, and align it with the longitudinal axis 29, as shown in FIG. 1.

Das Ventil 80 wird auf die Saugluftquelle 41 gestellt. Der von der Ablaufspule stammende Faden 16 wird jetzt durch geeignete Mittel der Ansaugöffnung 42 des Saugrohrs 43 vorgelegt. Er wird in das Saugrohr 43 hinein angesaugt und dort festgehalten, wie es Fig. 3 zeigt. Die Trennvorrichtung 71 ist geöffnet, die Fadenleitautomatik 59 ist noch außer Funktion.The valve 80 is placed on the suction air source 41. The thread 16 originating from the payout spool is now presented to the suction opening 42 of the suction pipe 43 by suitable means. It is sucked into the suction pipe 43 and held there, as shown in FIG. 3. The separating device 71 is open, the automatic thread guide 59 is still inoperative.

Anschließend wird das Saugrohr 43 in Richtung des Doppelpfeils 44 nach links verschoben, so daß der Hülsenteller 34 sich gegen den rechten Hülsenrand 61 legt. Der Faden 16 wird dabei zwischen Hülsenrand 61 und Hülsenteller 34 eingeklemmt und festgehalten. Die Finger 26 bis 28 der Hülsengreifeinrichtung 17 halten immer noch die Hülse 6 fest. Durch weiteres Vorschieben des Saugrohrs 43 nach links kommt der linke Hülsenrand 61′ der Hülse 6 mit dem Hülsenteller 33 in Kontakt, wobei die Lagerhülse 38 gegen die Kraft der Druckfeder 39 ein kleines Stück zurückweicht. Hierdurch erhält die Hülse 6 die erforderliche Einspannkraft.Then the suction pipe 43 is moved in the direction of the double arrow 44 to the left, so that the sleeve plate 34 lies against the right sleeve edge 61. The thread 16 is clamped between the sleeve edge 61 and the sleeve plate 34 and held. The fingers 26 to 28 of the sleeve gripping device 17 still hold the sleeve 6 firmly. By further advancing the suction tube 43 to the left, the left sleeve edge 61 'of the sleeve 6 comes into contact with the sleeve plate 33, the bearing sleeve 38 receding a little bit against the force of the compression spring 39. This gives the sleeve 6 the necessary clamping force.

Anschließend tritt die Fadenleitautomatik 59 in Tätigkeit. Der Hebel 66 schwenkt gemäß Fig. 2 im Uhrzeigersinn um die Schwenkachse 65, so daß das Leitelement den Faden 16 erfaßt und gegen den Anfangspunkt der ersten Windung 62 leitet, wie es Fig. 5 andeutet. Zugleich wird durch Verschieben der Zugstange 69 nach links die Vorschubeinrichtung 67 in die Ausgangsposition gebracht, die Fig. 5 ebenfalls zeigt. Gemäß Fig. 4 folgt der Faden 16 jetzt einem Weg, der durch das Leitelement 63 und die Vorschubeinrichtung 67 vorgeschrieben ist. Währenddessen lösen sich die Finger 26 bis 28 von der Hülse 6, nachdem die Hülse 6 zwischen die Hülsenteller 33 und 34 eingespannt ist. Beim Einspannen leitet der gezahnte Kragen 48 das Fadenende über den Hülsenrand 61.The automatic thread guide 59 then comes into operation. 2, the lever 66 pivots clockwise about the pivot axis 65, so that the guide element detects the thread 16 and guides it towards the starting point of the first turn 62, as shown in FIG. 5 implies. At the same time, by moving the pull rod 69 to the left, the feed device 67 is brought into the starting position, which is also shown in FIG. 5. 4, the thread 16 now follows a path that is prescribed by the guide element 63 and the feed device 67. Meanwhile, the fingers 26 to 28 detach from the sleeve 6 after the sleeve 6 is clamped between the sleeve plates 33 and 34. When clamping, the toothed collar 48 guides the thread end over the sleeve edge 61.

Zum Bilden der Fadenreserve kann jetzt das Hülsenantriebselement 36 eingeschaltet werden. Infolge getriebemäßiger Koppelung läuft dabei, abhängig von der Winkelgeschwindigkeit und dem Drehwinkel der Hülse 6, das Rädergetriebe 43 der Windungszähleinrichtung 54 und zugleich bewegt sich gesteuert die Zugstange 69 der Vorschubeinrichtung 67 nach rechts, so daß der Faden 16 Windung neben Windung von links nach rechts auf das rechte Hülsenende 60 aufgewickelt wird. Fig. 6 zeigt die fertige Fadenreserve 15 mit aus zeichnerischen Gründen nur wenigen, das Fadenende 70 überspulenden Windungen.The sleeve drive element 36 can now be switched on to form the thread reserve. As a result of gear coupling, depending on the angular speed and the angle of rotation of the sleeve 6, the gear 43 of the winding counting device 54 runs and at the same time the pull rod 69 of the feed device 67 moves in a controlled manner to the right, so that the thread 16 turns next to the winding from left to right the right sleeve end 60 is wound up. FIG. 6 shows the finished thread reserve 15 with only a few turns that spill over the thread end 70 for drawing reasons.

Sobald die vorgegebene Anzahl Windungen der Fadenreserve erreicht ist, schaltet der Impulssensor 55 das Hülsenantriebselement 36 wieder aus, so daß die Hülse 6 momentan zum Stillstand kommt.As soon as the predetermined number of turns of the thread reserve has been reached, the pulse sensor 55 switches the sleeve drive element 36 off again, so that the sleeve 6 comes to a standstill at the moment.

Der Impulssensor 55 gibt aber auch einen Impuls an die hier nicht dargestellte Steuerautomatik der Bedienungsvorrichtung 9. In der Bedienungsvorrichtung 9 läuft daraufhin ein Kurvenscheibenpaket einer Steuervorrichtung an, die hier nicht näher dargestellt ist. Dieses Kurvenscheibenpaket steuert jetzt folgende Vorgänge:
Zunächst legen sich die Finger 26 bis 28 wieder an die Hülse 6 an, danach wird das Saugrohr 43 nach rechts zurückgezogen, so daß die Hülse 6 wieder von den Hülsentellern 33 und 34 freikommt, wie es Fig. 6 zeigt. Daraufhin wird die Trennvorrichtung 71 betätigt, um die überschüssige Fadenlänge 70′ abzutrennen und nur ein gewünschtes, kurzes Fadenende 70 übrigzulassen. Währenddessen wird die Vorschubeinrichtung 67 durch die Zugstange 69 ganz zurückgeschwenkt und damit außer Funktion gebracht. Auch das Leitelement 63 kann jetzt außer Kontakt mit dem Faden 16 gebracht werden.However, the pulse sensor 55 also sends a pulse to the automatic control system of the operating device 9, which is not shown here. In the operating device 9, a cam disk package of a control device then starts, which is not shown in more detail here. This cam disk package now controls the following processes:
First, the fingers 26 to 28 rest on the sleeve 6, then the suction tube 43 is pulled back to the right, so that the sleeve 6 is released again from the sleeve plates 33 and 34, as shown in FIG. 6. Then the separator 71 is operated to cut off the excess thread length 70 'and leave only a desired, short thread end 70. In the meantime, the feed device 67 is pivoted back completely by the pull rod 69 and is thus rendered inoperative. The guide element 63 can now also be brought out of contact with the thread 16.

Die Fadenreserve 62 ist nun gebildet. Das erwähnte Kurvenscheibenpaket steuert jetzt die Hülsengreifeinrichtung 17 folgendermaßen:
Der Arm 19 wird um einen gewissen Winkel im Uhrzeigersinn um die Schwenkachse 18 gedreht, so daß die Längsachse 29 der Hülse 6 in Übereinstimmung mit der Wickelachse 75 des Spulenrahmens 4 kommt. Dadurch gerät die bereits mit einer Fadenreserve versehene Hülse 6 zwischen die Hülsenteller 5 des Spulenrahmens 4, der sich daraufhin schließt und die Hülse 6 einspannt.The thread reserve 62 is now formed. The aforementioned cam disk package now controls the sleeve gripping device 17 as follows:
The arm 19 is rotated clockwise about the pivot axis 18 by a certain angle, so that the longitudinal axis 29 of the sleeve 6 comes into line with the winding axis 75 of the coil frame 4. As a result, the sleeve 6, which is already provided with a thread reserve, gets between the sleeve plates 5 of the bobbin frame 4, which then closes and clamps the sleeve 6.

Gesteuert durch das erwähnte Kurvenscheibenpaket wird nun der Spulenrahmen 4 abgesenkt, so daß die Hülse 6 mit der rotierbaren Nutentrommel3 Kontakt aufnimmt, so daß der Wickelbetrieb beginnen kann. Zuvor lösen sich die Finger 26 bis 28 von der Hülse 6 und der Arm 19 schwenkt in die in Fig. 1 dargestellte Stellung zurück.Controlled by the above-mentioned cam disc package, the coil frame 4 is now lowered so that the sleeve 6 makes contact with the rotatable grooved drum 3 so that the winding operation can begin. Before this, the fingers 26 to 28 detach from the sleeve 6 and the arm 19 swings back into the position shown in FIG. 1.

Die Bedienungsvorrichtung 9 hat nun ihre Arbeit erledigt. Sie löst sich von der Spulstelle 1 und fährt gegebenenfalls an eine andere Spulstelle weiter, um dort tätig zu werden.The operating device 9 has now done its job. It detaches from the winding unit 1 and, if necessary, moves on to another winding unit in order to operate there.

Falls kein kurzes, sondern ein längeres Fadenende benötigt wird, kann alternativ die Trennvorrichtung 71 außer Funktion bleiben. Es kann beispielsweise der Impulssensor 55 beim Ausschalten des Hülsenantriebselements 36 das Ventil 80 auf die Druckluftquelle 79 umstellen, wodurch der Endabschnitt 76 (Fig. 6) des Fadenendes um den Hülsenrand 61 herumgeführt und in der Hülse 6 deponiert wird.If it is not a short but a longer thread end that is required, the separating device 71 can alternatively remain inoperative. For example, the pulse sensor 55 can switch the valve 80 to the compressed air source 79 when the sleeve drive element 36 is switched off, as a result of which the end section 76 (FIG. 6) of the thread end is guided around the sleeve edge 61 and deposited in the sleeve 6.

Claims (8)

  1. Method for producing a thread reserve on the tube end of a cross-wound bobbin, consisting of a plurality of turns not pertaining to the cross-wound coil, where the thread is conducted from the tube edge to the starting point of the first turn of the thread reserve and then the thread is laid in turns which do not cross one another, crossing and holding fast the thread end, in the direction towards the tube edge,
    characterised in that the thread is sucked in a length of at least several centimetres into a central suction pipe arranged in a rotatable tube plate, then a tube is clamped in between the pipe and a further rotatable tube plate and thus the thread is held fast between tube plate and tube edge, in that in known manner the thread is conducted from the tube edge as far as the starting point of the first turn of the thread reserve and the thread reserve is formed from a predeterminable number of turns and in that then either the rotation of the tube is brought to a halt, the tube is unclamped and passed for the winding up of the cross-wound bobbin to a tube reception device of a winding station, or before the halting of the tube a plurality of cross-wound layers of the subsequent cross-wound coil is applied to the tube and only then is the tube released and transferred to a tube reception device of a winding station which winds up the cross-wound bobbin.
  2. Method according to Claim 1, characterised in that after the unclamping of the tube the thread is cut short between suction pipe and tube edge and thus an end section of the thread end, 1 cm. long at maximum, is formed which protrudes under the overwound turns of the thread reserve.
  3. Method according to Claim 1, characterised in that after the clamping in of the tube between the rotating tube plates or before the transfer of the tube provided with the thread reserve to the tube reception device of the winding station, the end section of the thread end, sucked into the suction pipe and at least several centimetres long, is brought into the tube by reversal of the suction pipe flow.
  4. Device for producing a thread reserve on the tube end of a cross-wound bobbin, consisting of a plurality of turns not pertaining to the cross-wound coil, where the thread is conducted from the tube edge to the starting point of the first turn of the thread reserve and then the thread is laid in turns which do not cross one another, crossing and holding fast the thread end, in the direction towards the tube edge, according to one of Claims 1 to 3, characterised in that
    a) the device (9) possesses a separate winding apparatus (30) which is not identical with the winding device of a winding station (1) which winds up the cross-wound bobbin,
    b) the winding apparatus (30) possesses a drive device (32) for the tube (6),
    c) the drive device (32) possesses two rotatably mounted tube plates (33, 34), at least one of which is longitudinally displaceable for the purpose of taking up and releasing the tube (6),
    d) the device (9) comprises an automatic thread-guide system (59) with a guide element (63) guiding the thread (16) from the tube edge (61) to the starting point of the first turn (62) and a feed device (67) guiding the thread (16), adjoining turn (62) beside turn, in the direction towards the tube edge (61) and over the thread end (70),
    e) it possesses a turn counting device (54) for counting the turns of the thread reserve and
    f) a tube drive element (36) of the drive device (32) is controllable by the turn counting device (54).
  5. Device according to Claim 4, characterised in that the winding apparatus (30) possesses, for the production of an end section (70) of the thread end protruding by a maximum of 1 cm. under the overwinding turns (62, 15) of the thread reserve, a cutter device (71) operating in the vicinity of the tube edge (61) for cutting off excessive thread length (70).
  6. Device according to Claim 4 or 5, characterised in that one of the two rotatable tube plates (34) possesses a central suction pipe (43), connected to an air suction source (41) and provided with a suction opening (42) directed to the tube interior, for sucking a thread (16) connected with the supply yarn package of a winding station (1), from which thread, after the sucking in and after the clamping in of the tube (6) between the tube plates (33, 34), the thread reserve (15) is produced.
  7. Device according to Claim 4 or 6, characterised in that for the depositing of the end section (76) of the thread end in the interior of the tube (b) the two rotatably mounted tube plates (33, 34) possess air passage bores (77, 78) and in that the suction pipe (43) comprises a valve (80) which can be set according to choice to the suction air source (41), to the shut-off position and to a compressed air source (79).
  8. Device according to one of Claims 4 to 7, characterised in that it is a component of a mobile service apparatus capable of travelling from winding station to winding station (1) of a machine producing cross-wound bobbins and co-operates with the tube gripper device (17) thereof, in as much as the tube gripper device (17) takes an empty tube (6) from a tube magazine (10) and submits it to the tube plates (33, 34) of the winding apparatus (30), liberates the tube (6) during the formation of the thread reserve (15), thereafter grasps it again and submits it to a tube take-up device (4) of a winding station (1) of the machine which produces cross-wound bobbins.
EP88106465A 1987-06-17 1988-04-22 Method and apparatus for forming a thread reserve winding Expired - Lifetime EP0295394B1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE3720220 1987-06-17
DE3720220 1987-06-17
DE3733353 1987-10-02
DE19873733353 DE3733353A1 (en) 1987-06-17 1987-10-02 THREAD RESERVE AND METHOD AND DEVICE FOR PRODUCING THE THREAD RESERVE

Publications (2)

Publication Number Publication Date
EP0295394A1 EP0295394A1 (en) 1988-12-21
EP0295394B1 true EP0295394B1 (en) 1991-09-04

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP88106465A Expired - Lifetime EP0295394B1 (en) 1987-06-17 1988-04-22 Method and apparatus for forming a thread reserve winding

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US (1) US4878629A (en)
EP (1) EP0295394B1 (en)
JP (1) JP2637169B2 (en)
DE (2) DE3733353A1 (en)

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DE3911505C2 (en) * 1989-04-08 1999-10-14 Schlafhorst & Co W Method and winding unit for producing a faultless cheese
US5270526A (en) * 1989-11-02 1993-12-14 Nippon Conlux Co., Ltd. Card type recording medium and method of preventing a false use thereof
JPH0776981B2 (en) * 1989-11-02 1995-08-16 株式会社日本コンラックス Card-type recording medium recording / reproducing apparatus and method for preventing unauthorized use thereof
DE4034482C2 (en) * 1990-10-30 1999-03-11 Palitex Project Co Gmbh Method and device for thread feeding on a thread winding device of a textile machine
DE4211749A1 (en) * 1992-04-08 1993-10-14 Schlafhorst & Co W Winding machine - has initial reserve winding mechanism to secure yarn end for creeling operation
DE4241992A1 (en) * 1992-12-12 1994-06-16 Schlafhorst & Co W Method and device for sucking a thread start of a payout spool
DE9310332U1 (en) * 1993-07-12 1993-09-02 Schlafhorst & Co W Device for the automatic winding of a thread reserve
DE19928286A1 (en) * 1999-06-22 2000-12-28 Schlafhorst & Co W Winder for cross wound bobbins has a rotary speed transmitter at each winding station linked by the machine bus to the control unit of a mobile doffer for a simplified bobbin exchange
JP4059206B2 (en) * 2004-02-06 2008-03-12 村田機械株式会社 Spinner with bunch winding device
CN111003586A (en) * 2019-11-28 2020-04-14 国网山东省电力公司经济技术研究院 Power transmission line winding device

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Also Published As

Publication number Publication date
JP2637169B2 (en) 1997-08-06
DE3864594D1 (en) 1991-10-10
DE3733353A1 (en) 1988-12-29
US4878629A (en) 1989-11-07
JPS6417774A (en) 1989-01-20
EP0295394A1 (en) 1988-12-21

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