EP1525150B1 - Device for catching a thread at the beginning of a reeling operation - Google Patents

Device for catching a thread at the beginning of a reeling operation Download PDF

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Publication number
EP1525150B1
EP1525150B1 EP03766270A EP03766270A EP1525150B1 EP 1525150 B1 EP1525150 B1 EP 1525150B1 EP 03766270 A EP03766270 A EP 03766270A EP 03766270 A EP03766270 A EP 03766270A EP 1525150 B1 EP1525150 B1 EP 1525150B1
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EP
European Patent Office
Prior art keywords
bushing
catching
thread
guiding
slit
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
EP03766270A
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German (de)
French (fr)
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EP1525150A1 (en
Inventor
Görke CARSTEN
Matthias Hollstein
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.)
Georg Sahm GmbH and Co KG
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Georg Sahm GmbH and Co KG
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Publication date
Application filed by Georg Sahm GmbH and Co KG filed Critical Georg Sahm GmbH and Co KG
Publication of EP1525150A1 publication Critical patent/EP1525150A1/en
Application granted granted Critical
Publication of EP1525150B1 publication Critical patent/EP1525150B1/en
Anticipated expiration legal-status Critical
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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
    • B65H65/00—Securing material to cores or formers
    • 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 present invention relates to a device for catching a continuously arriving at a winder with at least two winding spindles thread at the beginning of a winding cycle and for winding the thread to a coil on an attachable to the winding spindle sleeve, wherein the device is arranged at the free end of the winding spindle catching bush having a catch slot and arranged in the center of the catch bushing friction pin.
  • the winder has at least two winding spindles to allow automatic bobbin change.
  • these two winding spindles are arranged on a turntable and are alternately pivoted into an operating position, while the wound coil just wound is removed from the winding spindle, which is not in the operating position, and a new sleeve is pushed on.
  • an automatic bobbin change it is necessary to cut the thread. With this separation process, the end of the thread is determined on the just finished wound coil at the same time. On the other hand, a thread beginning is formed, with which the winding cycle begins on the new sleeve. It is important to create the thread after production or after a business interruption for the first time. This is done by hand, ie using a suction gun. This unique process is then followed by any number of automatic bobbin changes.
  • the part of the thread which usually runs over a head thread guide or a traversing thread guide in front of a coil in the operating position, is called “incoming thread”.
  • the thread between the thread guide or traversing thread guide and the winding spindle in operation is called the “running thread”.
  • the “running thread” is the Part of the thread that is between the winding spindle in operation and the almost fully wound coil.
  • Each winding spindle has at its free end a device for catching the thread.
  • This device consists essentially of two parts, namely a catching bush with catching slot and a coaxially arranged friction pin.
  • the catch bushing is a bush or sleeve-shaped part with an axial length of a few centimeters.
  • the outer diameter of the catch bush is equal to or slightly smaller than the outer diameter of the winding spindle.
  • the inner diameter of the catch bushing is slightly smaller, so that a solid claimable body is formed, but which is still usually designed as a plastic body.
  • catch slot In the front side of the catch bushing begins a catch slot which is arranged obliquely to the generatrix of the catch bushing or to the axis of the winding spindle.
  • the angle at which the catching slot is arranged obliquely is relatively large, ie the catching slot is arranged comparatively steeply.
  • the catch slot begins at the front edge open and ends edge-closed in a certain axial depth in the catch bushing.
  • the catching bushing is arranged on the winding spindle such that at least the axial region in which the catching slot extends is not covered by a sleeve which has been properly pushed on and fixed.
  • the catching slot is arranged in a coordinated manner with respect to the direction of rotation of the winding spindle in order to be able to introduce a thread, which is approximated from the end face, into the catching slot.
  • the friction pin In the interior of the extent hollow trained catch bush the friction pin is arranged, which has a substantially smaller outer diameter, as it corresponds to the inner diameter of the catch bushing.
  • an annular space is created between friction pin and catch bush, in which the front end of a suction gun can be inserted by hand and thus the thread can be created.
  • the friction pin has the task of exerting by winding the thread on it with a rotating winding spindle a certain amount of friction on the thread, which serves to achieve a fixation of the thread.
  • the overall friction which leads to a fixing, so a setting of the thread, is also determined by several influencing variables, such as the formation of the bottom of the catch slot, in which a deflection of the thread takes place.
  • Another Frictional component is generated by the portion of the thread which forms immediately after entering the catching slot on the outer circumference of the catching bushing.
  • Such a device is also known from US-A-4,205,800.
  • This known device for catching a continuously arriving at a winder yarn allows only manual application with a suction gun, which must be repeated at each coil at the beginning of the winding cycle.
  • the incoming thread is sucked by the suction gun, so made manageable.
  • the front end of the suction gun is inserted into the clearance between the friction pin and the catch bushing.
  • the thread can run into the catching slot.
  • the thread is sucked off further via the suction gun.
  • an increase in friction takes place on the thread.
  • the thread is guided by the Fadenleitwerk or the traversing yarn guide accordingly.
  • the known device is already advantageous in that it allows the use of normal cylindrical sleeves without any catching device.
  • the device for catching is located on each winding spindle and is therefore available again for each coil winding.
  • the disadvantage is that the known device merely applying the thread by hand, d. H. with a suction gun. An automatic bobbin change is not possible.
  • a further development direction of a capture device is known.
  • the sleeve is held here on the right and left by a respective centering plate, so that the possibility exists to use normal sleeves.
  • One of the centering plate is designed as a catching device in a special way, d. H. occupied with catch noses.
  • the catch noses are arranged on a larger diameter than corresponds to the outer diameter of the sleeve. Again, the catching of the thread takes place in conjunction with a traversing yarn guide.
  • a disadvantage of this device is that to a bobbin change, the two centering plates must be removed from each other. This makes the training and the drive of the centering plate consuming. Such a catching device is indeed suitable for automatic yarn transfer.
  • the invention has the object of developing a device of the type described above so that on the one hand the application of the thread by hand, ie with a suction gun, z. B. after a business interruption, and subsequently an automatic bobbin change when using normal sleeves without capture range is possible.
  • this is achieved in a device of the type described above in that on each winding spindle in addition to the catch bushing a guide bush is provided with guide slot which surrounds the catch bushing in the radial direction and is arranged axially offset from the catch bush, and that between the catch bushing and the guide bush a clamping device is provided for fixing the thread during automatic bobbin change.
  • the new device further forms the generic device. It uses the generic device to realize the benefits of applying by hand, as is required after a break in work.
  • the catching bush with catching slot is associated with a guide bushing with a guide slot.
  • the guide bush has a larger diameter than the catch bush and closes - seen axially in the winding spindle direction - to the catch bushing inwards, ie in the direction of the coil to be formed on.
  • the guide bush has an end face which is arranged axially under overlapping with the catch slot of the catch bush.
  • the guide bush thus surrounds the catch bush in a small axial area.
  • the outer diameter of the guide bushing is equal to or smaller than the inner diameter of the sleeves used.
  • the guide bush has a guide slot which is assigned to the catching slot of the catching bush so that a connection of the two slots to one another is possible at least in the axial direction. Since the device fulfills its function when the winding spindle is rotating, it is not necessary to associate the catching slot with the guide slot in certain angular ranges. Of course, the guide slot must be arranged on the same side obliquely to the surface line of the guide bush or to the axis of the winding spindle as the catch slot. Although the catch bush and the guide bushing are arranged at different diameters, they differ relatively little in their diameter jump, while still a large diameter jump is required between the catch bush and the friction bolt, as is necessary for manual application of the thread.
  • a clamping device for fixing the thread during automatic bobbin change is provided between catch bushing and guide bushing.
  • This clamping device serves to fix the thread, so set so that it is stationary relative to this nip.
  • This fixation is used in two ways. On the one hand, it serves to cut through the thread, ie the expiring Thread to allow the almost finished wound coil. In the other direction, the beginning of the running thread is formed and placed on the winding spindle, so that a new winding is started on a new sleeve.
  • the first application process by means of a suction gun by hand can be carried out as follows:
  • the incoming thread is picked up by the suction gun and sucked off.
  • the front end of the suction gun is inserted into the space between the friction pin and the catch bushing.
  • contact is made with the thread on the front side of the catch bushing.
  • the thread enters the catch slot.
  • the relative position of the guide slot on the guide bush initially results in a few wraps on the circumference of the catch bushing with subsequent passage of the thread in the guide slot. All this is achieved without interference by a thread guide due to the laying triangle, according to which the thread is always anxious to take the shortest distance.
  • the thread is taken from the Fadenleitwerk or the traversing yarn guide of Fadenleitmaschines and moves depending on the desired winding result, z. B. first by means of a fixing winding, possibly a reserve winding, and finally in the normal laying stroke to form the coil.
  • the thread is manually by a cutting operation, for. B. with a pair of scissors, cut between the friction pin and the front end of the suction.
  • the thread also exceeds the edge of the sleeve and the resulting diameter jump. However, this is not chosen too large to keep the associated jump in the thread tension manageable.
  • an automatic bobbin change takes place at the end of the winding cycle.
  • the turntable with the two winding spindles is rotated so that the second winding spindle comes with the previously mounted normal sleeve in the operating position, while the sleeve is rotated with the almost finished coil wound in the ready position.
  • the thread slips on the circumference of the new sleeve according to the movements of the traversing yarn guide.
  • the traversing yarn guide is finally moved outside of the normal laying stroke so that the running thread comes into contact with the area and with the circumference of the catching bush.
  • a diverter which operates by means of a diverter arm or other controlled means, prevents the thread from falling off the full reel.
  • the running thread is properly wound up on the full bobbin.
  • the tarnished thread is prevented from coming into contact with the catching slot by contact with the circumference of the catching bush. This aims to prevent the thread from coming into contact with the friction pin in order to avoid an excessively large diameter jump, which could adversely affect the thread tension.
  • the tarnished thread is performed so far on the circumference of the catch bushing and runs alone in the guide slot of the guide bush. This results in a change in direction and speed of the running thread and in consequence a sudden increase in voltage. This causes the thread is suddenly fixed in the clamping device between the catch bushing and guide bushing. This fixation leads to a tearing of the thread, even with very tensile thread material.
  • a new thread beginning is formed and fixed in the operating position in the region of the new winding spindle, so that a new winding process can now automatically start on the new winding spindle or sleeve.
  • the laying triangle can be used to wind the thread on the circumference of the guide sleeve by a few windings, then to exceed the front edge of the sleeve and finally to get into the middle position of the laying triangle.
  • These movements of the thread in the lateral direction can be facilitated or supported by the traversing yarn guide, by movements of the thread guide and / or by axial displacement of the winding spindle.
  • a fixing winding, a reserve winding and finally the coil can also be formed here.
  • the catch slot and the guide slot can be arranged at different angles to the generatrices of the catch bushing or the guide bushing.
  • the slot is arranged steeper than the catch slot.
  • angles between 45 ° and 90 ° to the generatrix of the guide bushing may be provided, with an angle in the range of 80 ° being preferred.
  • the angle of the catch slot is set in the range between 10 ° and about 60 ° to the generatrix. There is also the possibility to arrange catch slot and guide slot in a same average angle.
  • the catch slot is arranged at an angle obliquely to the generatrix of the catch bush, that with automatic bobbin change the contact of the incoming thread with the cylindrical circumference of the catch bushing not to an entry of the thread into the catch slot, but only in the guide slot , leads. Falling of the thread during its circumferential contact during automatic bobbin change up to the diameter of the friction bolt would cause too great a change in tension in the thread with corresponding disadvantageous consequences. Since the outer diameter of the catch bushing runs in an approximated to the diameter of the winding spindle area, an excessive jump in the yarn is avoided.
  • the catching slot can thus be arranged obliquely with a smaller angle than the guide slot to the transversal generatrix.
  • the connection between the catching slot and the guide slot is to achieve the same starting situation, for example, relative to a traversing yarn guide, regardless of whether the thread was created by hand or automatically created in the automatic bobbin change.
  • the guide bushing should have an outer diameter equal to or smaller than the diameter of the winding spindle receiving the bushing.
  • the guide bushing should therefore have an outer diameter that is not too different from the outer diameter of the winding spindle, but nevertheless allows the removal of a sleeve with fully wound coil and the postponement of a new sleeve. In this way, the jump in the thread tension, resulting in the rise of the thread over the edge of the sleeve, kept low, so that he readily from appropriate Control devices, such as a dancer, the winder can be compensated.
  • the clamping device is arranged axially in the region of the guide slot.
  • the clamping device is thus associated with the guide slot so that when the thread enters the guide slot, the clamping device comes into action. This is especially true for the automatic bobbin change.
  • the clamping device can come to act, but it does not have it, because the friction increase required for fixing the thread is also determined here by the friction component, which is applied by the friction pin. This friction component is not available for automatic bobbin change, so that here the increase in friction by the clamping device is essential.
  • the clamping device may comprise a ring of elastic material which forms with the inner circumference of the guide bush a nip for fixing the thread for the purpose of demolition.
  • a ring in the simplest, but very effective embodiment, it may be an O-ring inserted into a groove on the circumference of the catch bush, which bears against the inner circumference of the guide bush with its outer circumference, so that in any case in connection herewith with the guide slot a nip is formed.
  • a ring of resilient metal at this point or another clamping device.
  • the clamping device need only be suitable to be accommodated in a small space, as it provides the difference in diameter between the catch bushing and guide bushing.
  • the reason of the guide slot can be formed sharp-edged.
  • Such a sharp-edged design can be realized by a corresponding edge design.
  • the installation of a knife at this point is possible. It is important that as sharp as possible a deflection of the thread is achieved, in particular for the winding of coils of high-strength Spulgut in thread or band shape.
  • the difference in diameter between the catch bushing and the guide bushing should be small and the difference in diameter between the catch bushing and the friction bolt should be large. This is useful for several reasons. On the one hand, it makes it possible to create by hand and created the necessary space between the friction pin and catch bush, so that the thread can come into contact with the frontal region of the catching bush. On the other hand, is kept low by small diameter differences of the voltage jump occurring during the transition of the thread from one diameter to the other.
  • Fig. 1 shows a front view of a winder 1 with a front wall 2, behind which hide the drive and control elements of the winder 1 substantially.
  • a turntable 3 which is driven about a horizontal axis 4 in steps of about 180 °.
  • two winding spindles 5 and 6 are provided in opposite arrangement.
  • the winding spindle 5 is shown in the operating position, while the winding spindle 6 can be seen in the change position.
  • the winding spindles 5 and 6 are separated from each other driven in a clockwise direction and can be stopped.
  • Each winding spindle 5, 6 has a relatively elongated axial cylindrical portion, which is suitable and intended for receiving a sleeve 7, on which ultimately a coil 8 is wound or generated. Since Fig. 1 shows the state shortly after further rotation of the turntable 3, the spool 8 is located on the sleeve 7 of the winding spindle 6, while previously it has been wound substantially where now the winding spindle 5 is with its sleeve 7.
  • a thread 9 is indicated in dash-dotted lines.
  • the thread 9 runs from the top onto a head thread guide 10, which is provided stationary stationary protruding from the front wall 2 of the winder 1 and at which the thread 9 is deflected.
  • the thread 9 arrives as an incoming thread 11 to a traversing yarn guide 12 of a thread guide 13.
  • successive stroke of the traversing yarn guide is traversed between this and the head thread guide the laying triangle, which denies the incoming thread 11 during the normal spool trip.
  • the incoming thread 11 would be wound on the surface of the sleeve 7 to the coil 8.
  • the traversing yarn guide 12 is in a position outside the normal laying stroke at such a location that the incoming yarn 11 is in the region of the device for catching the yarn, which is arranged at each freewheeling end of each winding spindle 5, 6 ,
  • the running of the winding spindle 5 thread 14 runs over a deflecting device 15 on the periphery of the spool 8 of the winding spindle 6 located in the change position.
  • the deflecting device 15 simultaneously prevents the falling thread 14 from falling off the spool 8.
  • the device for catching the continuously arriving at a winder 1 yarn 11 is arranged on each winding spindle 5, 6 in the same way at the protruding free end.
  • An essential part of this device is a catch bushing 16 with catching slot 17, furthermore a guide bushing 18 with guide slot 19 and a friction bolt 20.
  • the friction pin 20 is formed only about finger thick, so has a relatively small outer diameter.
  • the catch bush 16 has a much larger inner diameter 21 and know up to its outer diameter 22 a certain material thickness, as it is required for the formation of a solid, resistant to wear body.
  • the Fangbuchse 16 as well as the Guide bush 18 may preferably be formed of hard plastic.
  • the guide bush 18 surrounds the catch bushing 16, however, only a small distance.
  • the guide bush 18 has an inner diameter 24 and an outer diameter 25.
  • the outer diameter 25 of the guide bushing 18 is only slightly smaller than the outer diameter of the winding spindle 5 and 6, so that an empty sleeve 7 and a fully wound coil 8 can be up or taken without impairment.
  • Fig. 2 shows a perspective view of the conditions in front of the front wall 2 of the winder 1.
  • the size relations and the arrangement of the elements to each other better visible.
  • the catch bushing 16 and the guide bush 18 are superimposed or not superimposed.
  • the part of the device projecting axially furthest from the turntable 3 is the friction pin 20 (see also FIG. 4).
  • the catch bushing 16 which is not axially covered over a certain axial length in the region of its cylindrical circumference 26 by the guide bush 18, that is to say extending freely. In this fiausragenden part of the circumference 26 and slightly beyond the catch slot 17 is arranged.
  • the cylindrical circumference 26 of the catch bushing 16 is formed by a surface line 27, which thus extends parallel to the axis of the winding spindle 5 and 6 respectively. From Fig. 2 it can be seen that the catching slot 17 is arranged obliquely at a relatively small angle to the surface line 27. This angle 28 is shown in Fig. 3.
  • the guide bushing 18 also has a cylindrical circumference 29, which is formed by a generating line 30. The angle 31 between the direction of the guide slot 19 and the generatrix 30 is comparatively larger.
  • the guide slot 19 thus extends obliquely as the catching slot 17.
  • the guide slot 19 has a base 32 which is sharp-edged, as shown in particular Fig. 3. From Fig.
  • the catching slot 17 extends from its open-edge start on the end face 33, starting over the not covered by the guide bush 18 portion of the circumference 26 into a region of the circumference 26, the radia! is covered by the guide bushing 18.
  • the catching slot 17 merges directly in the projection into the guide slot 19, as can be seen approximately with reference to FIG. 3.
  • the relative position of the catching slot 17 to the guide slot 19 is arbitrary per se, because both the catching bushing 16 as well as the guide bushing 18 rotatably perform their function.
  • the catch bushing 16 and the guide bushing 18 rotate together, so they can also be offset by up to 180 ° over the circumference to each other. This is bridged by a piece of thread 11, which hangs on the circumference 26 of the catch bush 16.
  • a clamping device 34 is formed or provided between the catch bushing 16 and the guide bush 18.
  • An essential part of the clamping device 34 is a ring 35 made of elastic material, for example an O-ring, which is inserted into a groove on the outer circumference 26 of the catch bushing 16 and is in operative contact with the inner circumference corresponding to the inner diameter 24 of the guide bush 18.
  • the ring 35 is indicated in Fig. 3 in dashed lines.
  • a clamping gap 36 is formed in the region of the guide slot 19, in which the thread 11, 14 sets.
  • the clamping device 34 with the clamping gap 36 forms a fixing and tear-off device for the thread, so that on the one hand the incoming thread 11 can form the beginning of a coil 8 on the sleeve 7 of the winding spindle 5, while at the same time the end of the thread 14 on the spool. 8 the sleeve 7 of the winding spindle 6 is wound.
  • Fig. 4 shows the overlap of the elements in the axial direction. It is understood that the catch bushing 16 and the guide bushing 18 are permanently attached to the winding spindles 5 and 6 respectively. They are used again for each new sleeve 7. As sleeves 7 can thus normal cylindrical sleeves 7 are used, which have no incision or other special catching device.

Landscapes

  • Replacing, Conveying, And Pick-Finding For Filamentary Materials (AREA)
  • Storage Of Web-Like Or Filamentary Materials (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
  • Winding Filamentary Materials (AREA)
  • Drilling And Boring (AREA)

Abstract

The automatic bobbin winder for a continuous yarn, using at least two bobbin spindles, has a catch bush (16) with a catch slit (17) at the free end of the bobbin spindles, to catch the incoming yarn at the start of a bobbin winding cycle. A friction bolt (20) is at the center of the catch bush. Each bobbin spindle has an additional guide bush (18) with a guide slit (19), radially around the catch bush and axially offset to it. A clamp (34) is between the guide and catch bushes to fix the yarn on an automatic bobbin change.

Description

Die vorliegende Erfindung betrifft eine Vorrichtung zum Fangen eines kontinuierlich an einer Spulmaschine mit mindestens zwei Spulspindeln ankommenden Fadens am Anfang einer Spulreise und zum Aufwickeln des Fadens zu einer Spule auf einer auf die Spulspindel aufsetzbaren Hülse, wobei die Vorrichtung eine am freien Ende der Spulspindel angeordnete Fangbuchse mit Fangschlitz und einen im Zentrum der Fangbuchse angeordneten Reibungsbolzen aufweist. Bei einer solchen Vorrichtung geht es darum, einen kontinuierlich erzeugten oder jedenfalls kontinuierlich einer Spulmaschine zulaufenden Faden abgesehen von dem ersten Anlegevorgang kontinuierlich zu Spulen auf Hülsen aufzuwickeln. Die Spulmaschine weist mindestens zwei Spulspindeln auf, um einen automatischen Spulenwechsel zu ermöglichen. In der Regel sind diese beiden Spulspindeln auf einem Drehteller angeordnet und werden abwechselnd in eine Betriebsstellung verschwenkt, während die gerade zuende gewickelte Spule von der sich nicht in der Betriebsstellung befindlichen Spulspindel abgenommen und eine neue Hülse aufgeschoben wird. Für einen automatischen Spulenwechsel ist es erforderlich, den Faden zu durchtrennen. Mit diesem Trennvorgang wird gleichzeitig das Ende des Fadens auf der gerade fertiggewickelten Spule bestimmt. Andererseits wird ein Fadenanfang gebildet, mit dem die Spulreise auf der neuen Hülse beginnt. Dabei kommt es darauf an, den Faden nach Produktionsaufnahme oder nach einer Betriebsunterbrechung erstmals anzulegen. Dies geschieht von Hand, d.h. unter Verwendung einer Absaugpistole. An diesen einmaligen Vorgang schließen sich dann beliebig viele automatische Spulenwechsel an. Der Teil des Fadens, der in der Regel über einen Kopffadenführer einem Fadenleitwerk oder einem Changierfadenführer vor einer sich in der Betriebsstellung befindlichen Spule zuläuft, wird "ankommender Faden" genannt. Der Faden zwischen Fadenleitwerk bzw. Changierfadenführer und der sich im Betrieb befindlichen Spulspindel wird "auflaufender Faden" genannt. Der "ablaufende Faden" ist der Teil des Fadens, der sich zwischen der im Betrieb befindlichen Spulspindel und der nahezu voll bewickelten Spule befindet.The present invention relates to a device for catching a continuously arriving at a winder with at least two winding spindles thread at the beginning of a winding cycle and for winding the thread to a coil on an attachable to the winding spindle sleeve, wherein the device is arranged at the free end of the winding spindle catching bush having a catch slot and arranged in the center of the catch bushing friction pin. In such a device, it is a question of continuously winding coils on sleeves, which are continuously produced or at least continuously fed to a winding machine, apart from the first application process. The winder has at least two winding spindles to allow automatic bobbin change. As a rule, these two winding spindles are arranged on a turntable and are alternately pivoted into an operating position, while the wound coil just wound is removed from the winding spindle, which is not in the operating position, and a new sleeve is pushed on. For an automatic bobbin change, it is necessary to cut the thread. With this separation process, the end of the thread is determined on the just finished wound coil at the same time. On the other hand, a thread beginning is formed, with which the winding cycle begins on the new sleeve. It is important to create the thread after production or after a business interruption for the first time. This is done by hand, ie using a suction gun. This unique process is then followed by any number of automatic bobbin changes. The part of the thread, which usually runs over a head thread guide or a traversing thread guide in front of a coil in the operating position, is called "incoming thread". The thread between the thread guide or traversing thread guide and the winding spindle in operation is called the "running thread". The "running thread" is the Part of the thread that is between the winding spindle in operation and the almost fully wound coil.

STAND DER TECHNIKSTATE OF THE ART

Eine Vorrichtung der eingangs beschriebenen Art ist aus der Druckschrift der Anmelderin "SAHM 230E 230GE" Nr. 70141-913/3, Ausgabe 10/96, bekannt. Jede Spulspindel weist an ihrem freien Ende eine Vorrichtung zum Fangen des Fadens auf. Diese Vorrichtung besteht im Wesentlichen aus zwei Teilen, nämlich einer Fangbuchse mit Fangschlitz und einem koaxial angeordneten Reibungsbolzen. Bei der Fangbuchse handelt es sich um ein buchsen- oder hülsenförmiges Teil mit einer axialen Länge von einigen Zentimetern. Der Außendurchmesser der Fangbuchse ist gleich oder geringfügig kleiner als der Außendurchmesser der Spulspindel. Der Innendurchmesser der Fangbuchse ist etwas geringer, so dass ein fester beanspruchbarer Körper entsteht, der aber dennoch in der Regel als Kunststoffkörper ausgebildet ist. In der Stirnseite der Fangbuchse beginnt ein Fangschlitz, der schräg zur Mantellinie der Fangbuchse bzw. zur Achse der Spulspindel angeordnet ist. Der Winkel, mit dem der Fangschlitz schräg angeordnet ist, ist relativ groß, d. h. der Fangschlitz ist vergleichsweise steil angeordnet. Der Fangschlitz beginnt an der Stirnseite randoffen und endet randgeschlossen in gewisser axialer Tiefe in der Fangbuchse. Die Fangbuchse ist an der Spulspindel so angeordnet, dass zumindest der axiale Bereich, in dem sich der Fangschlitz erstreckt, von einer ordnungsgemäß aufgeschobenen und festgesetzten Hülse nicht abgedeckt wird. Der Fangschlitz ist abgestimmt auf die Drehrichtung der Spulspindel angeordnet, um einen von der Stirnseite her angenäherten Faden in den Fangschlitz einführen zu können. Im Innern der insoweit hohl ausgebildeten Fangbuchse ist der Reibungsbolzen angeordnet, der einen wesentlich geringeren Außendurchmesser aufweist, als es dem Innendurchmesser der Fangbuchse entspricht. Damit wird zwischen Reibungsbolzen und Fangbuchse ein ringförmiger Freiraum geschaffen, in den das vordere Ende einer Absaugpistole von Hand eingeführt und somit der Faden angelegt werden kann. Der Reibungsbolzen hat die Aufgabe, durch Aufwickeln des Fadens auf ihm bei sich drehender Spulspindel eine gewisse Reibung auf den Faden auszuüben, die dem Erreichen einer Fixierung des Fadens dient. Die Gesamtreibung, die zu einem Fixieren, also einem Festsetzen des Fadens führt, wird darüber hinaus noch von mehreren Einflussgrößen bestimmt, so beispielsweise auch von der Ausbildung des Grundes des Fangschlitzes, in welchem eine Umlenkung des Fadens erfolgt. Ein weiterer Reibungsbestandteil wird von dem Bereich des Fadens erzeugt, der sich unmittelbar nach Eintritt in den Fangschlitz auf dem äußeren Umfang der Fangbuchse bildet.A device of the type described above is known from the publication of the applicant "SAHM 230E 230GE" No. 70141-913 / 3, Issue 10/96 known. Each winding spindle has at its free end a device for catching the thread. This device consists essentially of two parts, namely a catching bush with catching slot and a coaxially arranged friction pin. The catch bushing is a bush or sleeve-shaped part with an axial length of a few centimeters. The outer diameter of the catch bush is equal to or slightly smaller than the outer diameter of the winding spindle. The inner diameter of the catch bushing is slightly smaller, so that a solid claimable body is formed, but which is still usually designed as a plastic body. In the front side of the catch bushing begins a catch slot which is arranged obliquely to the generatrix of the catch bushing or to the axis of the winding spindle. The angle at which the catching slot is arranged obliquely is relatively large, ie the catching slot is arranged comparatively steeply. The catch slot begins at the front edge open and ends edge-closed in a certain axial depth in the catch bushing. The catching bushing is arranged on the winding spindle such that at least the axial region in which the catching slot extends is not covered by a sleeve which has been properly pushed on and fixed. The catching slot is arranged in a coordinated manner with respect to the direction of rotation of the winding spindle in order to be able to introduce a thread, which is approximated from the end face, into the catching slot. In the interior of the extent hollow trained catch bush the friction pin is arranged, which has a substantially smaller outer diameter, as it corresponds to the inner diameter of the catch bushing. Thus, an annular space is created between friction pin and catch bush, in which the front end of a suction gun can be inserted by hand and thus the thread can be created. The friction pin has the task of exerting by winding the thread on it with a rotating winding spindle a certain amount of friction on the thread, which serves to achieve a fixation of the thread. The overall friction, which leads to a fixing, so a setting of the thread, is also determined by several influencing variables, such as the formation of the bottom of the catch slot, in which a deflection of the thread takes place. Another Frictional component is generated by the portion of the thread which forms immediately after entering the catching slot on the outer circumference of the catching bushing.

Eine solche Vorrichtung ist auch aus der US-A-4 205 800 bekannt.Such a device is also known from US-A-4,205,800.

Diese bekannte Vorrichtung zum Fangen eines kontinuierlich an einer Spulmaschine ankommenden Fadens lässt nur das manuelle Anlegen mit einer Absaugpistole zu, das bei jeder Spule zu Beginn der Spulreise wiederholt werden muss. Hierzu wird der ankommende Faden von der Absaugpistole abgesaugt, also handhabbar gemacht. Das vordere Ende der Absaugpistole wird in den Freiraum zwischen dem Reibungsbolzen und der Fangbuchse eingeführt. Bei sich drehender Spulspindel erfolgt ein stirnseitiger Kontakt des Fadens an der Fangbuchse, so dass der Faden in den Fangschlitz einlaufen kann. Während dieser Prozedur wird der Faden über die Absaugpistole weiter abgesaugt. Sobald der Faden in den Fangschlitz eingelaufen ist, findet eine Reibungserhöhung an dem Faden statt. Die zunehmende Reibung führt dazu, dass der Faden vermindert rutscht und mit sich verringernder Geschwindigkeit von der Absaugpistole abgesaugt wird. Schließlich wird die Gesamtreibung so groß, dass der Faden relativ zum Fangschlitz stillsteht, also der Faden an der Vorrichtung fixiert ist. Durch das fortgesetzte Aufwickeln auf dem Reibungsbolzen wird noch ein geringer Teil des Fadens aus der Absaugpistole herausgezogen. Durch gleichzeitiges Herausnehmen des vorderen Endes der Absaugpistole aus dem Freiraum besteht die Möglichkeit, den Faden mit einer Schere o. dgl. abzuschneiden. Der Faden läuft dann aufgrund des Verlegedreiecks und/oder der Einwirkung einer Changiereinrichtung auf die Hülse auf, wobei er den Durchmessersprung von dem Außendurchmesser der Fangbuchse auf den Außendurchmesser der Hülse überwindet. Anschließend beginnt dann auf jeden Fall die Spulenwicklung, gegebenenfalls unter Bildung einer vorhergehenden Fixierwicklung, Reservewicklung o. dgl.. Dabei wird der Faden von dem Fadenleitwerk bzw. dem Changierfadenführer entsprechend geführt. Die bekannte Vorrichtung ist insofern bereits vorteilhaft, als sie den Einsatz normaler zylindrischer Hülsen ohne jegliche Fangeinrichtung ermöglicht. Die Vorrichtung zum Fangen befindet sich vielmehr an jeder Spulspindel und steht daher bei jeder Spulenwicklung wieder zur Verfügung. Nachteilig ist, dass die bekannte Vorrichtung lediglich ein Anlegen des Fadens von Hand, d. h. mit einer Absaugpistole, ermöglicht. Ein automatischer Spulenwechsel ist damit nicht möglich.This known device for catching a continuously arriving at a winder yarn allows only manual application with a suction gun, which must be repeated at each coil at the beginning of the winding cycle. For this purpose, the incoming thread is sucked by the suction gun, so made manageable. The front end of the suction gun is inserted into the clearance between the friction pin and the catch bushing. When the winding spindle is rotating, there is an end-to-end contact of the thread with the catching bush, so that the thread can run into the catching slot. During this procedure, the thread is sucked off further via the suction gun. As soon as the thread has run into the catching slot, an increase in friction takes place on the thread. The increasing friction causes the thread slipping diminished and sucked by the suction gun with decreasing speed. Finally, the total friction is so great that the thread is stationary relative to the catching slot, so the thread is fixed to the device. Due to the continued winding on the friction pin, a small part of the thread is pulled out of the suction gun. By simultaneously removing the front end of the suction from the space there is the possibility to cut the thread with scissors o. The like. The thread then runs due to the laying triangle and / or the action of a traversing device on the sleeve, wherein it overcomes the diameter jump from the outer diameter of the catch bush to the outer diameter of the sleeve. Then, in any case, then begins the coil winding, possibly forming a previous fixing winding, reserve winding o. The like .. In this case, the thread is guided by the Fadenleitwerk or the traversing yarn guide accordingly. The known device is already advantageous in that it allows the use of normal cylindrical sleeves without any catching device. The device for catching is located on each winding spindle and is therefore available again for each coil winding. The disadvantage is that the known device merely applying the thread by hand, d. H. with a suction gun. An automatic bobbin change is not possible.

Andererseits sind z. B. aus der DE 197 43 278 C2 oder auch der DE 196 46 335 A1 Spezialhülsen bekannt, die mit einem Fangbereich ausgestattet sind. Der Fangbereich kann aus einem über einen Teil des Umfangs der Hülse geführten Einschnitt bestehen, der einen Klemmspalt zum Festsetzen des Fadens bildet. Es ist auch möglich, einen solchen Klemmspalt durch einen stirnseitig an der Hülse angesetzten Einschnitt zu bilden. In Verbindung damit werden kompliziert aufgebaute Changiereinrichtungen mit einer Mehrzahl von Fadenführern eingesetzt, um den Faden relativ zum Klemmspalt, der außerhalb des normalen Changierhubes liegt, zu bringen. Derartige Spezialhülsen lassen vorteilhaft einen automatischen Spulenwechsel zu. Sie erfordern jedoch den Einsatz vergleichsweise teurer Spezialhülsen. Das Fadenleitwerk muss relativ kompliziert gestaltet sein, einschließlich der separaten Antriebe für bis zu drei Fadenführer, die je nach Betriebssituation den Faden übernehmen müssen.On the other hand, z. Example from DE 197 43 278 C2 or DE 196 46 335 A1 special sleeves known, which are equipped with a catching area. The capture region may consist of a guided over a part of the circumference of the sleeve incision, the one Clamping gap for setting the thread forms. It is also possible to form such a nip by an incision applied on the front side of the sleeve. In connection therewith, complicated traversing devices are used with a plurality of yarn guides to bring the yarn relative to the nip located outside of the normal traverse stroke. Such special sleeves can advantageously be an automatic bobbin change. However, they require the use of relatively expensive special sleeves. The thread guide must be relatively complicated, including the separate drives for up to three thread guides, which must take over the thread depending on the operating situation.

Aus der DE 196 37 298 A1 ist eine weitere Entwicklungsrichtung einer Fangeinrichtung bekannt. Die Hülse wird hier rechts und links von je einem Zentrierteller gehalten, so dass die Möglichkeit besteht, normale Hülsen einzusetzen. Einer der Zentrierteller ist als Fangeinrichtung in besonderer Weise ausgebildet, d. h. mit Fangnasen besetzt. Die Fangnasen sind auf einem größeren Durchmesser, als es dem Außendurchmesser der Hülse entspricht, angeordnet. Auch hier erfolgt das Fangen des Fadens in Verbindung mit einem Changierfadenführer. Nachteilig an dieser Vorrichtung ist es, dass zu einem Spulenwechsel die beiden Zentrierteller voneinander entfernt werden müssen. Dies macht die Ausbildung und den Antrieb der Zentrierteller aufwändig. Eine solche Fangeinrichtung ist zwar zur automatischen Fadenübergabe geeignet. Sie lässt sich jedoch nicht fest mit einer Spulspindel verbinden, insbesondere nicht mit einer Spulspindel, die ein freies auskragendes Ende aufweist. Ein Aufschieben einer neuen Hülse ist nur dann möglich, wenn die Fangeinrichtung von der Spulspindel temporär entfernt wird.From DE 196 37 298 A1 a further development direction of a capture device is known. The sleeve is held here on the right and left by a respective centering plate, so that the possibility exists to use normal sleeves. One of the centering plate is designed as a catching device in a special way, d. H. occupied with catch noses. The catch noses are arranged on a larger diameter than corresponds to the outer diameter of the sleeve. Again, the catching of the thread takes place in conjunction with a traversing yarn guide. A disadvantage of this device is that to a bobbin change, the two centering plates must be removed from each other. This makes the training and the drive of the centering plate consuming. Such a catching device is indeed suitable for automatic yarn transfer. However, it can not be firmly connected to a winding spindle, in particular not with a winding spindle, which has a free projecting end. Sliding a new sleeve is only possible if the catcher is temporarily removed from the winding spindle.

AUFGABE DER ERFINDUNGOBJECT OF THE INVENTION

Der Erfindung liegt die Aufgabe zugrunde, eine Vorrichtung der eingangs beschriebenen Art so weiterzubilden, dass einerseits das Anlegen des Fadens von Hand, also mit einer Absaugpistole, z. B. nach einer Betriebsunterbrechung, sowie nachfolgend ein automatischer Spulenwechsel bei Einsatz normaler Hülsen ohne Fangbereich möglich wird.The invention has the object of developing a device of the type described above so that on the one hand the application of the thread by hand, ie with a suction gun, z. B. after a business interruption, and subsequently an automatic bobbin change when using normal sleeves without capture range is possible.

LÖSUNGSOLUTION

Erfindungsgemäß wird dies bei einer Vorrichtung der eingangs beschriebenen Art dadurch erreicht, dass an jeder Spulspindel zusätzlich zu der Fangbuchse eine Führungsbuchse mit Führungsschlitz vorgesehen ist, die die Fangbuchse in radialer Richtung umgibt und axial zu der Fangbuchse versetzt angeordnet ist, und dass zwischen der Fangbuchse und der Führungsbuchse eine Klemmeinrichtung zum Fixieren des Fadens bei automatischem Spulenwechsel vorgesehen ist.According to the invention this is achieved in a device of the type described above in that on each winding spindle in addition to the catch bushing a guide bush is provided with guide slot which surrounds the catch bushing in the radial direction and is arranged axially offset from the catch bush, and that between the catch bushing and the guide bush a clamping device is provided for fixing the thread during automatic bobbin change.

Die neue Vorrichtung bildet die gattungsgemäße Vorrichtung weiter. Sie benutzt die gattungsgemäße Vorrichtung, um die Vorteile des Anlegens von Hand zu realisieren, wie es nach einer Arbeitspause erforderlich wird. Zur Realisierung des automatischen Spulenwechsels ist jedoch der Fangbuchse mit Fangschlitz eine Führungsbuchse mit Führungsschlitz zugeordnet. Die Führungsbuchse besitzt einen größeren Durchmesser als die Fangbuchse und schließt sich - axial in Spulspindelrichtung gesehen - an die Fangbuchse nach innen, also in Richtung auf die zu bildende Spule, an. Die Führungsbuchse weist eine Stirnfläche auf, die axial unter Überdeckung mit dem Fangschlitz der Fangbuchse angeordnet ist. Die Führungsbuchse umgibt somit gleichsam die Fangbuchse in einem kleinen axialen Bereich. Zweckmäßig ist der Außendurchmesser der Führungsbuchse gleich oder kleiner als der Innendurchmesser der verwendeten Hülsen. Die Führungsbuchse weist einen Führungsschlitz auf, der dem Fangschlitz der Fangbuchse zugeordnet ist, so dass zumindest in axialer Richtung ein Anschluss der beiden Schlitze aneinander möglich ist. Da die Vorrichtung bei sich drehender Spulspindel ihre Funktion erfüllt, ist eine Zuordnung des Fangschlitzes zu dem Führungsschlitz in bestimmten Winkelbereichen nicht erforderlich. Freilich muss der Führungsschlitz nach der gleichen Seite schräg zur Mantellinie der Führungsbuchse bzw. zur Achse der Spulspindel angeordnet sein wie der Fangschlitz. Die Fangbuchse und die Führungsbuchse sind zwar auf unterschiedlichen Durchmessern angeordnet, unterscheiden sich jedoch relativ wenig in ihrem Durchmessersprung, während nach wie vor zwischen Fangbuchse und Reibungsbolzen ein großer Durchmessersprung erforderlich ist, wie dies zum manuellen Anlegen des Fadens notwendig ist. Weiterhin ist zwischen Fangbuchse und Führungsbuchse eine Klemmeinrichtung zum Fixieren des Fadens beim automatischen Spulenwechsel vorgesehen. Diese Klemmeinrichtung dient dazu, den Faden zu fixieren, also festzusetzen, so dass er relativ zu dieser Klemmstelle stillsteht. Diese Fixierung wird in zweifacher Hinsicht genutzt. Zum einen dient sie dazu, ein Durchtrennen des Fadens, also des ablaufenden Fadens, auf die nahezu fertig bewickelte Spule zu ermöglichen. In der anderen Richtung wird der Beginn des auflaufenden Fadens gebildet und an der Spulspindel platziert, so dass eine neue Wicklung auf einer neuen Hülse begonnen wird.The new device further forms the generic device. It uses the generic device to realize the benefits of applying by hand, as is required after a break in work. To realize the automatic bobbin change, however, the catching bush with catching slot is associated with a guide bushing with a guide slot. The guide bush has a larger diameter than the catch bush and closes - seen axially in the winding spindle direction - to the catch bushing inwards, ie in the direction of the coil to be formed on. The guide bush has an end face which is arranged axially under overlapping with the catch slot of the catch bush. The guide bush thus surrounds the catch bush in a small axial area. Suitably, the outer diameter of the guide bushing is equal to or smaller than the inner diameter of the sleeves used. The guide bush has a guide slot which is assigned to the catching slot of the catching bush so that a connection of the two slots to one another is possible at least in the axial direction. Since the device fulfills its function when the winding spindle is rotating, it is not necessary to associate the catching slot with the guide slot in certain angular ranges. Of course, the guide slot must be arranged on the same side obliquely to the surface line of the guide bush or to the axis of the winding spindle as the catch slot. Although the catch bush and the guide bushing are arranged at different diameters, they differ relatively little in their diameter jump, while still a large diameter jump is required between the catch bush and the friction bolt, as is necessary for manual application of the thread. Furthermore, a clamping device for fixing the thread during automatic bobbin change is provided between catch bushing and guide bushing. This clamping device serves to fix the thread, so set so that it is stationary relative to this nip. This fixation is used in two ways. On the one hand, it serves to cut through the thread, ie the expiring Thread to allow the almost finished wound coil. In the other direction, the beginning of the running thread is formed and placed on the winding spindle, so that a new winding is started on a new sleeve.

Mit der neuen Vorrichtung lässt sich der erste Anlegevorgang mit Hilfe einer Absaugpistole von Hand wie folgt durchführen:
Der ankommende Faden wird von der Absaugpistole aufgenommen und abgesaugt. Das vordere Ende der Absaugpistole wird in den Freiraum zwischen Reibungsbolzen und Fangbuchse eingeführt. Bei sich drehender Spulspindel findet stirnseitig an der Fangbuchse ein Kontakt zum Faden statt. Der Faden läuft in den Fangschlitz ein. Je nach der relativen Lage des Führungsschlitzes auf der Führungsbuchse ergeben sich zunächst einige wenige Umwicklungen auf dem Umfang der Fangbuchse mit nachfolgendem Übertritt des Fadens in den Führungsschlitz. All dies wird auch ohne Beeinflussung durch ein Fadenleitwerk aufgrund des Verlegedreiecks erreicht, gemäß welchem der Faden immer bestrebt ist, die kürzeste Entfernung einzunehmen. Während dieser Handhabung wird immer noch Faden in die Absaugpistole eingesaugt, d. h. der Faden rutscht an allen Kontaktstellen. Gleichzeitig wird der Faden auch auf den Reibungsbolzen aufgewickelt, da der Fangschlitz den Reibungsbolzen umkreist. Damit steigt die Gesamtreibungskraft auf den Faden an und wird schließlich so groß, dass eine Klemmwirkung eintritt. Diese Gesamtreibungskraft resultiert aus der Umschlingung des Reibungsbolzens mit dem Faden, der Reibung des Fadens im Fangschlitz und ggf. auf dem Umfang der Fangbuchse sowie der Reibung im Führungsschlitz. Mit dem Eintritt der Klemmwirkung und der relativen Fixierung des Fadens zum Führungsschlitz wird der Faden von der Spulspindel bzw. der Vorrichtung übernommen, so dass dann ein Wickelvorgang beginnt. Hierbei wird der Faden von dem Fadenleitwerk bzw. dem Changierfadenführer des Fadenleitwerks übernommen und je nach dem gewünschten Wickelergebnis bewegt, z. B. zunächst mittels einer Fixierwicklung, ggf. einer Reservewicklung, und schließlich im normalen Verlegehub zur Bildung der Spule. Parallel dazu wird der Faden manuell durch einen Schneidevorgang, z. B. mit einer Schere, zwischen Reibungsbolzen und dem vorderen Ende der Absaugpistole durchtrennt. Bei diesem Anlegevorgang übersteigt der Faden auch die Kante der Hülse und den sich dadurch ergebenden Durchmessersprung. Dieser ist jedoch nicht allzu groß gewählt, um den damit verbundenen Sprung in der Fadenspannung beherrschbar zu halten.With the new device, the first application process by means of a suction gun by hand can be carried out as follows:
The incoming thread is picked up by the suction gun and sucked off. The front end of the suction gun is inserted into the space between the friction pin and the catch bushing. When the winding spindle rotates, contact is made with the thread on the front side of the catch bushing. The thread enters the catch slot. Depending on the relative position of the guide slot on the guide bush initially results in a few wraps on the circumference of the catch bushing with subsequent passage of the thread in the guide slot. All this is achieved without interference by a thread guide due to the laying triangle, according to which the thread is always anxious to take the shortest distance. During this handling thread is still sucked into the suction gun, ie the thread slips at all contact points. At the same time, the thread is also wound on the friction pin, since the catching slot orbits the friction pin. Thus, the total frictional force increases to the thread and eventually becomes so large that a clamping effect occurs. This total frictional force results from the looping of the friction bolt with the thread, the friction of the thread in the catch slot and possibly on the circumference of the catch bush and the friction in the guide slot. With the entry of the clamping action and the relative fixing of the thread to the guide slot, the thread is taken over by the winding spindle or the device, so that then a winding process begins. Here, the thread is taken from the Fadenleitwerk or the traversing yarn guide of Fadenleitwerks and moves depending on the desired winding result, z. B. first by means of a fixing winding, possibly a reserve winding, and finally in the normal laying stroke to form the coil. In parallel, the thread is manually by a cutting operation, for. B. with a pair of scissors, cut between the friction pin and the front end of the suction. In this application process, the thread also exceeds the edge of the sleeve and the resulting diameter jump. However, this is not chosen too large to keep the associated jump in the thread tension manageable.

Nachdem die erste Spule weitgehend gewickelt worden ist, findet am Ende der Spulreise ein automatischer Spulenwechsel statt. Zu diesem Zweck wird der Drehteller mit den zwei Spulspindeln so gedreht, dass die zweite Spulspindel mit der vorher aufgesetzten normalen Hülse in die Betriebsstellung gelangt, während die Hülse mit der fast fertig gewickelten Spule in die Bereitschaftsstellung gedreht wird. Dabei rutscht der Faden auf dem Umfang der neuen Hülse gemäß den Bewegungen des Changierfadenführers. Der Changierfadenführer wird schließlich so außerhalb des normalen Verlegehubes verfahren, dass der auflaufende Faden in den Bereich und mit dem Umfang der Fangbuchse schleifend in Kontakt kommt. Eine Umlenkeinrichtung, die mit Hilfe eines Umlenkarms oder einer sonstigen gesteuerten Einrichtung arbeitet, verhindert das Herabfallen des Fadens von der vollen Spule. Der ablaufende Faden wird insoweit ordnungsgemäß auf der vollen Spule aufgewickelt. Der auflaufende Faden wird durch den Kontakt mit dem Umfang der Fangbuchse an einem Eintritt in den Fangschlitz gehindert. Dies zielt darauf ab, den Faden nicht mit dem Reibungsbolzen in Kontakt kommen zu lassen, um einen allzu großen Durchmessersprung zu vermeiden, der sich nachteilig auf die Fadenspannung auswirken könnte. Der auflaufende Faden wird insoweit auf dem Umfang der Fangbuchse geführt und läuft allein in den Führungsschlitz der Führungsbuchse ein. Damit ergibt sich eine Richtungs- und Geschwindigkeitsänderung am ablaufenden Faden und in der Folge eine ruckartige Spannungserhöhung. Diese führt dazu, dass der Faden plötzlich in der Klemmeinrichtung zwischen Fangbuchse und Führungsbuchse fixiert wird. Diese Fixierung führt zu einem Abreißen des Fadens, und zwar auch bei sehr zugfestem Fadenmaterial. Durch das Festklemmen des Fadens in der Klemmeinrichtung wird andererseits ein neuer Fadenanfang gebildet und im Bereich der neuen Spulspindel in der Betriebsstellung festgesetzt, so dass ein neuer Wickelvorgang nunmehr automatisch auf der neuen Spulspindel bzw. Hülse beginnen kann. Auch hier kann das Verlegedreieck genutzt werden, um den Faden auf dem Umfang der Führungshülse um einige Wicklungen aufzuwickeln, anschließend die Stirnkante der Hülse zu überschreiten und schließlich in die Mittelstellung des Verlegedreiecks zu gelangen. Diese Bewegungen des Fadens in seitlicher Richtung können durch den Changierfadenführer, durch Bewegungen des Fadenleitwerks und/oder durch axiales Verschieben der Spulspindel erleichtert oder unterstützt werden. Zu Beginn einer Wicklung nach der Fixierung des Fadens können auch hier eine Fixierwicklung, eine Reservewicklung und schließlich die Spule gebildet werden.After the first coil has been largely wound, an automatic bobbin change takes place at the end of the winding cycle. For this purpose, the turntable with the two winding spindles is rotated so that the second winding spindle comes with the previously mounted normal sleeve in the operating position, while the sleeve is rotated with the almost finished coil wound in the ready position. The thread slips on the circumference of the new sleeve according to the movements of the traversing yarn guide. The traversing yarn guide is finally moved outside of the normal laying stroke so that the running thread comes into contact with the area and with the circumference of the catching bush. A diverter, which operates by means of a diverter arm or other controlled means, prevents the thread from falling off the full reel. The running thread is properly wound up on the full bobbin. The tarnished thread is prevented from coming into contact with the catching slot by contact with the circumference of the catching bush. This aims to prevent the thread from coming into contact with the friction pin in order to avoid an excessively large diameter jump, which could adversely affect the thread tension. The tarnished thread is performed so far on the circumference of the catch bushing and runs alone in the guide slot of the guide bush. This results in a change in direction and speed of the running thread and in consequence a sudden increase in voltage. This causes the thread is suddenly fixed in the clamping device between the catch bushing and guide bushing. This fixation leads to a tearing of the thread, even with very tensile thread material. By clamping the thread in the clamping device, on the other hand, a new thread beginning is formed and fixed in the operating position in the region of the new winding spindle, so that a new winding process can now automatically start on the new winding spindle or sleeve. Again, the laying triangle can be used to wind the thread on the circumference of the guide sleeve by a few windings, then to exceed the front edge of the sleeve and finally to get into the middle position of the laying triangle. These movements of the thread in the lateral direction can be facilitated or supported by the traversing yarn guide, by movements of the thread guide and / or by axial displacement of the winding spindle. At the beginning of a winding after the fixation of the thread, a fixing winding, a reserve winding and finally the coil can also be formed here.

Der Fangschlitz und der Führungsschlitz können in unterschiedlichen Winkeln zu den Mantellinien der Fangbuchse bzw. der Führungsbuchse angeordnet sein. Der führungsschlitz ist steiler als der Fangschlitz angeordnet. Für den Führungsschlitz können Winkel zwischen 45° und 90° zur Mantellinie der Führungsbuchse vorgesehen sein, wobei ein Winkel im Bereich von 80° bevorzugt wird. Der Winkel des Fangschlitzes ist im Bereich zwischen 10° und etwa 60° zur Mantellinie festgelegt. Es ergibt sich auch die Möglichkeit, Fangschlitz und Führungsschlitz in einem gleichen gemittelten Winkel anzuordnen. Wichtig ist dabei, dass der Fangschlitz in einem solchen Winkel schräg zu der Mantellinie der Fangbuchse angeordnet ist, dass bei automatischem Spulenwechsel der Kontakt des ankommenden Fadens mit dem zylindrischen Umfang der Fangbuchse nicht zu einem Eintritt des Fadens in den Fangschlitz, sondern lediglich in den Führungsschlitz, führt. Ein Durchfallen des Fadens bei seinem umfangsmäßigen Kontakt beim automatischen Spulenwechsel bis auf den Durchmesser des Reibungsbolzens würde eine zu große Spannungsänderung im Faden mit entsprechenden nachteiligen Folgen verursachen. Da der Außendurchmesser der Fangbuchse in einem dem Durchmesser der Spulspindel angenäherten Bereich läuft, wird ein allzu großer Spannungssprung am Faden vermieden. Der Fangschlitz kann also mit einem kleineren Winkel als der Führungsschlitz zu der weiligen Mantellinie schräg angeordnet sein.The catch slot and the guide slot can be arranged at different angles to the generatrices of the catch bushing or the guide bushing. The slot is arranged steeper than the catch slot. For the guide slot, angles between 45 ° and 90 ° to the generatrix of the guide bushing may be provided, with an angle in the range of 80 ° being preferred. The angle of the catch slot is set in the range between 10 ° and about 60 ° to the generatrix. There is also the possibility to arrange catch slot and guide slot in a same average angle. It is important that the catch slot is arranged at an angle obliquely to the generatrix of the catch bush, that with automatic bobbin change the contact of the incoming thread with the cylindrical circumference of the catch bushing not to an entry of the thread into the catch slot, but only in the guide slot , leads. Falling of the thread during its circumferential contact during automatic bobbin change up to the diameter of the friction bolt would cause too great a change in tension in the thread with corresponding disadvantageous consequences. Since the outer diameter of the catch bushing runs in an approximated to the diameter of the winding spindle area, an excessive jump in the yarn is avoided. The catching slot can thus be arranged obliquely with a smaller angle than the guide slot to the transversal generatrix.

Wenn sich der Fangschlitz über den von der Führungsbuchse axial nicht überdeckten Bereich der Fangbuche hinaus bis in den von der Führungsbuchse axial überdeckten Bereich der Fangbuchse erstreckt, besteht die Möglichkeit, dass einerseits der Anschluss zwischen dem Fangschlitz und dem Führungsschlitz beim Anlegen des Fadens von Hand gegeben ist, um die gleiche Ausgangssituation beispielsweise relativ zu einem Changierfadenführer zu erreichen, gleichgültig, ob der Faden von Hand angelegt oder im automatischen Spulenwechsel automatisch angelegt wurde.If the catch slot extends beyond the area of the catching beech which is not axially covered by the guide bushing into the area of the catching bush which is axially overlapped by the guide bushing, it is possible for the connection between the catching slot and the guide slot to be created manually on application of the thread is to achieve the same starting situation, for example, relative to a traversing yarn guide, regardless of whether the thread was created by hand or automatically created in the automatic bobbin change.

Die Führungsbuchse sollte einen Außendurchmesser aufweisen, der gleich oder kleiner als der die Hülse aufnehmende Durchmesser der Spulspindel ist. Die Führungsbuchse sollte also einen Außendurchmesser aufweisen, der sich vom Außendurchmesser der Spulspindel nicht allzu sehr unterscheidet, jedoch gleichwohl das Abnehmen einer Hülse mit voll bewickelter Spule und das Aufschieben einer neuen Hülse ermöglicht. Auf diese Weise wird auch der Sprung in der Fadenspannung, der sich beim Aufsteigen des Fadens über den Rand der Hülse ergibt, gering gehalten, so dass er ohne weiteres von entsprechenden Regeleinrichtungen, beispielsweise einem Tänzerarm, der Spulmaschine ausgeregelt werden kann.The guide bushing should have an outer diameter equal to or smaller than the diameter of the winding spindle receiving the bushing. The guide bushing should therefore have an outer diameter that is not too different from the outer diameter of the winding spindle, but nevertheless allows the removal of a sleeve with fully wound coil and the postponement of a new sleeve. In this way, the jump in the thread tension, resulting in the rise of the thread over the edge of the sleeve, kept low, so that he readily from appropriate Control devices, such as a dancer, the winder can be compensated.

Die Klemmeinrichtung ist axial im Bereich des Führungsschlitzes angeordnet. Die Klemmeinrichtung ist damit dem Führungsschlitz so zugeordnet, dass bei Eintritt des Fadens im Führungsschlitz die Klemmeinrichtung zur Einwirkung kommt. Dies gilt insbesondere für den automatischen Spulenwechsel. Beim Anlegen von Hand kann die Klemmeinrichtung zur Einwirkung kommen, sie muss es aber nicht, weil die für das Fixieren des Fadens erforderliche Reibungserhöhung hier auch durch den Reibungsanteil mitbestimmt wird, der von dem Reibungsbolzen aufgebracht wird. Dieser Reibungsanteil steht beim automatischen Spulenwechsel nicht zur Verfügung, so dass hier die Reibungserhöhung durch die Klemmeinrichtung wesentlich ist.The clamping device is arranged axially in the region of the guide slot. The clamping device is thus associated with the guide slot so that when the thread enters the guide slot, the clamping device comes into action. This is especially true for the automatic bobbin change. When applying by hand, the clamping device can come to act, but it does not have it, because the friction increase required for fixing the thread is also determined here by the friction component, which is applied by the friction pin. This friction component is not available for automatic bobbin change, so that here the increase in friction by the clamping device is essential.

Für die Realisierung der Klemmeinrichtung ergeben sich verschiedene Möglichkeiten, so kann die Klemmeinrichtung einen Ring aus elastischem Material aufweisen, der mit dem inneren Umfang der Führungsbuchse einen Klemmspalt zum Fixieren des Fadens zwecks Abriss bildet. Bei einem solchen Ring kann es sich in der einfachsten, aber sehr wirksamen Ausführungsform um einen in eine Nut auf dem Umfang der Fangbuchse eingelegten O-Ring handeln, der mit seinem Außenumfang an dem Innenumfang der Führungsbuchse anliegt, so dass hier auf jeden Fall in Verbindung mit dem Führungsschlitz ein Klemmspalt gebildet wird. Es ist aber auch möglich, einen Ring aus federelastischem Metall an dieser Stelle Vorzusehen oder eine sonstige Klemmeinrichtung. Die Klemmeinrichtung muss nur geeignet sein, auf kleinem Raum untergebracht zu werden, wie es der Durchmesserunterschied zwischen Fangbuchse und Führungsbuchse bereitstellt.For the realization of the clamping device, there are various possibilities, so the clamping device may comprise a ring of elastic material which forms with the inner circumference of the guide bush a nip for fixing the thread for the purpose of demolition. In such a ring, in the simplest, but very effective embodiment, it may be an O-ring inserted into a groove on the circumference of the catch bush, which bears against the inner circumference of the guide bush with its outer circumference, so that in any case in connection herewith with the guide slot a nip is formed. But it is also possible to provide a ring of resilient metal at this point or another clamping device. The clamping device need only be suitable to be accommodated in a small space, as it provides the difference in diameter between the catch bushing and guide bushing.

Zusätzlich kann der Grund des Führungsschlitzes scharfkantig ausgebildet sein. Eine solche scharfkantige Ausbildung kann durch eine entsprechende Kantengestaltung realisiert sein. Auch der Einbau eines Messers an dieser Stelle ist möglich. Wichtig ist, dass eine möglichst scharfkantige Umlenkung des Fadens erreicht wird, insbesondere für die Wicklung von Spulen aus hochfestem Spulgut in Faden- oder Bandform.In addition, the reason of the guide slot can be formed sharp-edged. Such a sharp-edged design can be realized by a corresponding edge design. Also, the installation of a knife at this point is possible. It is important that as sharp as possible a deflection of the thread is achieved, in particular for the winding of coils of high-strength Spulgut in thread or band shape.

Der Durchmesserunterschied zwischen Fangbuchse und Führungsbuchse sollte gering und der Durchmesserunterschied zwischen Fangbuchse und Reibungsbolzen groß sein. Dies ist aus mehreren Gründen sinnvoll. Einerseits wird damit das Anlegen von Hand ermöglicht und der erforderliche Freiraum zwischen Reibungsbolzen und Fangbuchse geschaffen, so dass der Faden mit dem stirnseitigen Bereich der Fangbuchse in Kontakt kommen kann. Andererseits wird durch geringe Durchmesserunterschiede der auftretende Spannungssprung beim Übergang des Fadens von einem Durchmesser auf den anderen gering gehalten.The difference in diameter between the catch bushing and the guide bushing should be small and the difference in diameter between the catch bushing and the friction bolt should be large. This is useful for several reasons. On the one hand, it makes it possible to create by hand and created the necessary space between the friction pin and catch bush, so that the thread can come into contact with the frontal region of the catching bush. On the other hand, is kept low by small diameter differences of the voltage jump occurring during the transition of the thread from one diameter to the other.

KURZBESCHREIBUNG DER FIGURENBRIEF DESCRIPTION OF THE FIGURES

Im Folgenden wird die Erfindung anhand in den Figuren dargestellter bevorzugter Ausführungsbeispiele weiter erläutert und beschrieben.

Fig. 1
zeigt eine Vorderansicht der Spulmaschine, nachdem die Spulspindel mit der leeren Hülse in Betriebsposition geschwenkt ist, unmittelbar vor dem Zerreißen des Fadens.
Fig. 2
zeigt eine perspektivische Darstellung der Spulmaschine gemäß Fig. 1, wobei aus Gründen der Übersichtlichkeit von dem Fadenleitwerk nur der Changierfadenführer dargestellt ist.
Fig. 3
zeigt eine Vergrößerung des vorderen freiausragenden Endes der Spulspindel gemäß Fig. 2.
Fig. 4
zeigt eine Schnittdarstellung durch die Vorrichtung zum Fangen gemäß der Linie IV - IV in Fig. 3.
In the following the invention will be further explained and described with reference to preferred embodiments shown in the figures.
Fig. 1
shows a front view of the winder after the winding spindle is pivoted with the empty sleeve in the operating position, just before the tearing of the thread.
Fig. 2
shows a perspective view of the winder according to FIG. 1, wherein for reasons of clarity of the Fadenleitwerk only the traversing yarn guide is shown.
Fig. 3
shows an enlargement of the front cantilevered end of the winding spindle of FIG. 2nd
Fig. 4
shows a sectional view through the device for catching along the line IV - IV in Fig. 3rd

FIGURENBESCHREIBUNGDESCRIPTION OF THE FIGURES

Fig. 1 zeigt eine Vorderansicht auf eine Spulmaschine 1 mit einer Vorderwand 2, hinter der sich im wesentlichen die Antriebs- und Steuerelemente der Spulmaschine 1 verbergen. In der Vorderwand befindet sich ein Drehteller 3, der um eine horizontale Achse 4 in Schritten von etwa 180° antreibbar ist. Auf dem Drehteller 3 sind in gegenüberliegender Anordnung zwei Spulspindeln 5 und 6 vorgesehen. Die Spulspindel 5 ist in der Betriebsstellung dargestellt, während die Spulspindel 6 in der Wechselstellung erkennbar ist. Die Spulspindeln 5 und 6 sind getrennt voneinander im Uhrzeigersinn antreibbar und stillsetzbar.Fig. 1 shows a front view of a winder 1 with a front wall 2, behind which hide the drive and control elements of the winder 1 substantially. In the front wall is a turntable 3, which is driven about a horizontal axis 4 in steps of about 180 °. On the turntable 3, two winding spindles 5 and 6 are provided in opposite arrangement. The winding spindle 5 is shown in the operating position, while the winding spindle 6 can be seen in the change position. The winding spindles 5 and 6 are separated from each other driven in a clockwise direction and can be stopped.

Jede Spulspindel 5, 6 besitzt einen relativ langgestalteten axialen zylindrischen Teil, der zur Aufnahme einer Hülse 7 geeignet und bestimmt ist, auf der letztendlich eine Spule 8 aufgewickelt bzw. erzeugt wird. Da Fig. 1 den Zustand kurz nach dem Weiterdrehen des Drehtellers 3 zeigt, befindet sich die Spule 8 auf der Hülse 7 der Spulspindel 6, während sie vorher im wesentlichen dort gewickelt wurde, wo sich nunmehr die Spulspindel 5 mit ihrer Hülse 7 befindet.Each winding spindle 5, 6 has a relatively elongated axial cylindrical portion, which is suitable and intended for receiving a sleeve 7, on which ultimately a coil 8 is wound or generated. Since Fig. 1 shows the state shortly after further rotation of the turntable 3, the spool 8 is located on the sleeve 7 of the winding spindle 6, while previously it has been wound substantially where now the winding spindle 5 is with its sleeve 7.

Weiterhin ist ein Faden 9 in strichpunktierter Linienführung angedeutet. Der Faden 9 läuft von oben auf einen Kopffadenführer 10 auf, der ortsfest stillstehend von der Vorderwand 2 der Spulmaschine 1 ausragend vorgesehen ist und an dem der Faden 9 umgelenkt wird. Der Faden 9 gelangt als ankommender Faden 11 zu einem Changierfadenführer 12 eines Fadenleitwerks 13. Durch den senkrecht zur Zeichenebene der Fig. 1 erfolgenden Hub des Changierfadenführers wird zwischen diesem und dem Kopffadenführer das Verlegedreieck durchlaufen, welches der ankommende Faden 11 während der normalen Spulenreise bestreitet. Normalerweise würde der ankommende Faden 11 auf der Oberfläche der Hülse 7 zur Spule 8 aufgewickelt werden. In Fig. 1 befindet sich jedoch der Changierfadenführer 12 in einer Stellung außerhalb des normalen Verlegehubes an einer solchen Stelle, dass der ankommende Faden 11 sich im Bereich der Vorrichtung zum Fangen des Fadens befindet, die an jedem freiausragenden Ende jeder Spulspindel 5, 6 angeordnet ist. Der von der Spulspindel 5 ablaufende Faden 14 läuft über eine Umlenkeinrichtung 15 auf den Umfangder Spule 8 der sich in der Wechselposition befindlichen Spulspindel 6 auf. Die Umlenkeinrichtung 15 verhindert gleichzeitig das Herabfallen des ablaufenden Fadens 14 von der Spule 8.Furthermore, a thread 9 is indicated in dash-dotted lines. The thread 9 runs from the top onto a head thread guide 10, which is provided stationary stationary protruding from the front wall 2 of the winder 1 and at which the thread 9 is deflected. The thread 9 arrives as an incoming thread 11 to a traversing yarn guide 12 of a thread guide 13. By perpendicular to the plane of Fig. 1 successive stroke of the traversing yarn guide is traversed between this and the head thread guide the laying triangle, which denies the incoming thread 11 during the normal spool trip. Normally, the incoming thread 11 would be wound on the surface of the sleeve 7 to the coil 8. In Fig. 1, however, the traversing yarn guide 12 is in a position outside the normal laying stroke at such a location that the incoming yarn 11 is in the region of the device for catching the yarn, which is arranged at each freewheeling end of each winding spindle 5, 6 , The running of the winding spindle 5 thread 14 runs over a deflecting device 15 on the periphery of the spool 8 of the winding spindle 6 located in the change position. The deflecting device 15 simultaneously prevents the falling thread 14 from falling off the spool 8.

Die Vorrichtung zum Fangen des kontinuierlich an einer Spulmaschine 1 ankommenden Fadens 11 ist an jeder Spulspindel 5, 6 in gleicher Weise an dem ausragenden freien Ende angeordnet. Wesentlicher Bestandteil dieser Vorrichtung ist eine Fangbuchse 16 mit Fangschlitz 17, weiterhin eine Führungsbuchse 18 mit Führungsschlitz 19 sowie ein Reibungsbolzen 20. Bereits aus Fig. 1 sind die Durchmesserverhältnisse der Elemente zueinander erkennbar. Der Reibungsbolzen 20 ist nur etwa fingerdick ausgebildet, besitzt also einen relativ kleinen Außendurchmesser. Die Fangbuchse 16 besitzt einen erheblich größeren Innendurchmesser 21 und weißt bis zu ihrem Außendurchmesser 22 eine gewisse Materialstärke auf, wie es für die Ausbildung eines festen, gegen Verschleiß widerstandsfähigen Körpers erforderlich ist. Die Fangbuchse 16 wie auch die Führungsbuchse 18 können bevorzugt aus hartem Kunststoff ausgebildet sein. Aber auch eine Ausbildung aus Metall ist denkbar. Wichtig ist, dass der Innendurchmesser 21 der Fangbuchse 16 erheblich größer als der Außendurchmesser des Reibungsbolzens 20 ist, so dass damit ein ringförmiger Raum 23 geschaffen wird, der so groß ist, dass das vordere Ende einer Absaugpistole zum manuellen Anlegen des Fadens 11 nach einer Betriebsunterbrechung möglich ist.The device for catching the continuously arriving at a winder 1 yarn 11 is arranged on each winding spindle 5, 6 in the same way at the protruding free end. An essential part of this device is a catch bushing 16 with catching slot 17, furthermore a guide bushing 18 with guide slot 19 and a friction bolt 20. Already from FIG. 1, the diameter ratios of the elements are recognizable to one another. The friction pin 20 is formed only about finger thick, so has a relatively small outer diameter. The catch bush 16 has a much larger inner diameter 21 and know up to its outer diameter 22 a certain material thickness, as it is required for the formation of a solid, resistant to wear body. The Fangbuchse 16 as well as the Guide bush 18 may preferably be formed of hard plastic. But also a training from metal is conceivable. It is important that the inner diameter 21 of the catch bushing 16 is considerably larger than the outer diameter of the friction bolt 20, so that an annular space 23 is provided which is so large that the front end of a suction gun for manual application of the thread 11 after a business interruption is possible.

Die Führungsbuchse 18 umgibt die Fangbuchse 16 dagegen nur mit geringem Abstand. Die Führungsbuchse 18 weist einen Innendurchmesser 24 und einen Außendurchmesser 25 auf. Der Außendurchmesser 25 der Führungsbuchse 18 ist nur geringfügig kleiner als der Aussendurchmesser der Spulspindel 5 bzw. 6, damit eine leere Hülse 7 bzw. eine vollgewickelte Spule 8 ohne Beeinträchtigung auf- bzw. abgenommen werden können.The guide bush 18 surrounds the catch bushing 16, however, only a small distance. The guide bush 18 has an inner diameter 24 and an outer diameter 25. The outer diameter 25 of the guide bushing 18 is only slightly smaller than the outer diameter of the winding spindle 5 and 6, so that an empty sleeve 7 and a fully wound coil 8 can be up or taken without impairment.

Fig. 2 zeigt in perspektivischer Darstellung die Verhältnisse vor der Vorderwand 2 der Spulmaschine 1. Durch die perspektivische Darstellung werden die Größenrelationen und die Anordnung der Elemente zueinander besser erkennbar. Es ist auch erkennbar, wie und inwieweit sich die Fangbuchse 16 und die Führungsbuchse 18 überlagern bzw. nicht überlagern. Der axial am weitesten von dem Drehteller 3 abstehende Teil der Vorrichtung ist der Reibungsbolzen 20 (s. auch Fig. 4). Danach folgt die Fangbuchse 16, die auf einer gewissen axialen Länge im Bereich ihres zylindrischen Umfangs 26 axial von der Führungsbuchse 18 nicht überdeckt wird, also sich freiausragend erstreckt. In diesem freiausragenden Teil des Umfangs 26 sowie etwas darüber hinaus ist der Fangschlitz 17 angeordnet. Der zylindrische Umfang 26 der Fangbuchse 16 wird von einer Mantellinie 27 gebildet, die sich also parallel zu der Achse der Spulspindel 5 bzw. 6 erstreckt. Aus Fig. 2 ist erkennbar, dass der Fangschlitz 17 in einem relativ kleinen Winkel zu der Mantellinie 27 schrägstehend angeordnet ist. Dieser Winkel 28 ist in Fig. 3 eingezeichnet. Auch die Führungsbuchse 18 weist einen zylindrischen Umfang 29 auf, der von einer Mantellinie 30 gebildet wird. Der Winkel 31 zwischen der Richtung des Führungsschlitzes 19 und der Mantellinie 30 ist vergleichsweise größer. Der Führungsschlitz 19 verläuft also schräger als der Fangschlitz 17. Der Führungsschlitz 19 weist einen Grund 32 auf, der scharfkantig ausgebildet ist, wie dies insbesondere Fig. 3 zeigt. Aus Fig. 3 ist auch erkennbar, dass sich der Fangschlitz 17 von seinem randoffenen Beginn an der Stirnseite 33 ausgehend über den von der Führungsbuchse 18 nicht abgedeckten Teil des Umfangs 26 bis in einen Bereich des Umfangs 26 erstreckt, der radia! von der Führungsbuchse 18 abgedeckt wird. Dagegen Kommt es nicht darauf an, dass der Fangschlitz 17 unmittelbar in der Projektion in den Führungsschlitz 19 übergeht, wie dies angenähert anhand der Fig. 3 erkennbar ist. Die Relativlage des Fangschlitzes 17 zu dem Führungsschlitz 19 ist an sich beliebig, weil sowohl die Fangbuchse 16 wie auch die Führungsbuchse 18 drehend ihre Funktion erbringen. Obwohl die Fangbuchse 16 und die Führungsbuchse 18 gemeinsam drehen, können sie also auch um bis zu 180° über den Umfang versetzt zueinander angeordnet sein. Dies wird durch ein Stück des Fadens 11 überbrückt, welches sich auf dem Umfang 26 der Fangbuchse 16 auflegt.Fig. 2 shows a perspective view of the conditions in front of the front wall 2 of the winder 1. By the perspective view, the size relations and the arrangement of the elements to each other better visible. It can also be seen how and to what extent the catch bushing 16 and the guide bush 18 are superimposed or not superimposed. The part of the device projecting axially furthest from the turntable 3 is the friction pin 20 (see also FIG. 4). This is followed by the catch bushing 16, which is not axially covered over a certain axial length in the region of its cylindrical circumference 26 by the guide bush 18, that is to say extending freely. In this freiausragenden part of the circumference 26 and slightly beyond the catch slot 17 is arranged. The cylindrical circumference 26 of the catch bushing 16 is formed by a surface line 27, which thus extends parallel to the axis of the winding spindle 5 and 6 respectively. From Fig. 2 it can be seen that the catching slot 17 is arranged obliquely at a relatively small angle to the surface line 27. This angle 28 is shown in Fig. 3. The guide bushing 18 also has a cylindrical circumference 29, which is formed by a generating line 30. The angle 31 between the direction of the guide slot 19 and the generatrix 30 is comparatively larger. The guide slot 19 thus extends obliquely as the catching slot 17. The guide slot 19 has a base 32 which is sharp-edged, as shown in particular Fig. 3. From Fig. 3 it can also be seen that the catching slot 17 extends from its open-edge start on the end face 33, starting over the not covered by the guide bush 18 portion of the circumference 26 into a region of the circumference 26, the radia! is covered by the guide bushing 18. On the other hand If it does not matter that the catching slot 17 merges directly in the projection into the guide slot 19, as can be seen approximately with reference to FIG. 3. The relative position of the catching slot 17 to the guide slot 19 is arbitrary per se, because both the catching bushing 16 as well as the guide bushing 18 rotatably perform their function. Although the catch bushing 16 and the guide bushing 18 rotate together, so they can also be offset by up to 180 ° over the circumference to each other. This is bridged by a piece of thread 11, which hangs on the circumference 26 of the catch bush 16.

Zwischen der Fangbuchse 16 und der Führungsbuchse 18 ist eine Klemmeinrichtung 34 gebildet bzw. vorgesehen. Wesentlicher Bestandteil der Klemmeinrichtung 34 ist ein Ring 35 aus elastischem Material, beispielsweise ein O-Ring, der in eine Nut auf dem äußeren Umfang 26 der Fangbuchse 16 eingelegt ist und mit dem inneren Umfang entsprechend dem Innendurchmesser 24 der Führungsbuchse 18 in Wirkkontakt steht. Der Ring 35 ist in Fig. 3 in gestrichelter Linienführung angedeutet. Zwischen dem Ring 35 und dem inneren Umfang der Führungsbuchse 18 wird im Bereich des Führungsschlitzes 19 ein Klemmspalt 36 gebildet, in welchem sich der Faden 11, 14 festsetzt. Die Klemmeinrichtung 34 mit dem Klemmspalt 36 bildet eine Fixier- und Abreißvorrichtung für den Faden, so dass einerseits der ankommende Faden 11 den Beginn einer Spule 8 auf der Hülse 7 der Spulspindel 5 bilden kann, während gleichzeitig das Ende des Fadens 14 auf der Spule 8 der Hülse 7 der Spulspindel 6 aufgewickelt wird.Between the catch bushing 16 and the guide bush 18, a clamping device 34 is formed or provided. An essential part of the clamping device 34 is a ring 35 made of elastic material, for example an O-ring, which is inserted into a groove on the outer circumference 26 of the catch bushing 16 and is in operative contact with the inner circumference corresponding to the inner diameter 24 of the guide bush 18. The ring 35 is indicated in Fig. 3 in dashed lines. Between the ring 35 and the inner circumference of the guide bush 18, a clamping gap 36 is formed in the region of the guide slot 19, in which the thread 11, 14 sets. The clamping device 34 with the clamping gap 36 forms a fixing and tear-off device for the thread, so that on the one hand the incoming thread 11 can form the beginning of a coil 8 on the sleeve 7 of the winding spindle 5, while at the same time the end of the thread 14 on the spool. 8 the sleeve 7 of the winding spindle 6 is wound.

Fig. 4 zeigt die Überdeckung der Elemente in axialer Richtung. Es versteht sich, dass die Fangbuchse 16 und die Führungsbuchse 18 dauerhaft an den Spulspindeln 5 bzw. 6 befestigt sind. Sie kommen für jede neue Hülse 7 wiederum zum Einsatz. Als Hülsen 7 können damit normale zylindrische Hülsen 7 eingesetzt werden, die keinerlei Einschnitt oder sonstige spezielle Fangeinrichtung besitzen.Fig. 4 shows the overlap of the elements in the axial direction. It is understood that the catch bushing 16 and the guide bushing 18 are permanently attached to the winding spindles 5 and 6 respectively. They are used again for each new sleeve 7. As sleeves 7 can thus normal cylindrical sleeves 7 are used, which have no incision or other special catching device.

BEZUGSZEICHENLISTELIST OF REFERENCE NUMBERS

0101
SpulmaschineDishwasher
0202
Vorderwandfront wall
0303
Drehtellerturntable
0404
Achseaxis
0505
Spulspindelwinding spindle
0606
Spulspindelwinding spindle
0707
Hülseshell
0808
SpuleKitchen sink
0909
Fadenthread
1010
KopffadenführerYarn guide
2121
InnendurchmesserInner diameter
2222
Außendurchmesserouter diameter
2323
Raumroom
2424
InnendurchmesserInner diameter
2525
Außendurchmesserouter diameter
2626
Umfangscope
2727
Mantelliniegenerating line
2828
Winkelangle
2929
Umfangscope
3030
Mantelliniegenerating line
1111
ankommender Fadenincoming thread
1212
ChangierfadenführerTraversing thread guide
1313
Fadenleitwerkthread tail
1414
ablaufender Fadenrunning thread
1515
Umlenkeinrichtungdeflecting
1616
Fangbuchsecatching bushing
1717
Fangschlitzcatching slit
1818
Führungsbuchseguide bush
1919
Führungsschlitzguide slot
2020
Reibungsbolzenfriction pin
3131
Winkelangle
3232
Grundreason
3333
Stirnseitefront
3434
Klemmeinrichtungclamper
3535
Ringring
3636
Klemmspaltnip

Claims (10)

  1. Device for catching a continuously arriving thread (11) to a winder having at least two spindles (5, 6) at the beginning of a reeling operation and for winding the thread (11) to a reel (8) on a sleeve (7) to be attached to one of the spindles (5, 6), the device comprising a catching bushing (16) having a catching slit (17) arranged at the free end of the spindle (5, 6) and a friction pin (20) arranged in the centre of the catching bushing (16), characterized in that in addition to the catching bushing (16) a guiding bushing (18) having a guiding slit (19) is arranged, the guiding bushing (18) surrounding the catching bushing (16) in radial direction and being positioned with axial distance to the catching bushing (16), and in that a clamping apparatus (34) for fixing the thread (11) during an automatic change of reels is arranged between the catching bushing (16) and the guiding bushing (18).
  2. The device of claim 1, characterized in that the catching slit (17) and the guiding slit (19) are positioned in different angles (28, 31) with respect to the surface lines (27, 30) of the catching bushing (16) and the guiding bushing (18) respectively.
  3. The device of at least one of the claims 2 to 2, characterized in that the catching slit (17) is positioned with such an angle (28) inclined with respect to the surface line (27) of the catching bushing (16), so that during an automatic change of reels the contact of the winding-on thread (11) to the cylindrical circumference (26) of the catching bushing (16) does not result in an entrance of the thread (11) in the catching slit (17) but only in an entrance in the guiding slit (19).
  4. The device of at least one of the claims 1 to 3, characterized in that the catching slit (17) is positioned with a smaller angle (28) than the guiding slit (19) with respect to the respective surface line (27, 30) in inclined manner.
  5. The device of at least one of the claims 1 to 4, characterized in that the catching slit (17) extends over the region of the catching bushing (16) not being overlapped by the guiding bushing (18) and projects in the region of the catching bushing (16) being overlapped by the guiding bushing (18).
  6. The device of at least one of the claims 1 to 5, characterized in that the guiding bushing (18) includes an outer diameter (25) being equal or smaller than the outer diameter of the spindles (5, 6) to take the sleeve (7).
  7. The device of claim 1, characterized in that the clamping apparatus (34) is arranged in axial relation near the guiding slit (19).
  8. The device of at least one of the claims 1 to 7, characterized in that the clamping apparatus (34) includes a ring (35) made from elastic material, the ring and the inner circumference of the guiding bushing (18) forming a clamping gap (36) to fix the thread (11, 14) for breaking purposes.
  9. The device of at least one of the claims 1 to 8, characterized in that the bottom (32) of the guiding slit (19) is designed to be sharp-edged.
  10. The device of at least one of the claims 1 to 9, characterized in that the difference in the diameters between the catching bushing (16) and the guiding bushing (18) is small and the difference in the diameters between the catching bushing (16) and the friction pin (20) is large.
EP03766270A 2002-08-01 2003-07-24 Device for catching a thread at the beginning of a reeling operation Expired - Lifetime EP1525150B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10235209A DE10235209C1 (en) 2002-08-01 2002-08-01 Automatic bobbin winder, with at least two spindles, has a catch bush and a guide bush at the free end of each spindle, with a clamp between them to secure the yarn at the start of a bobbin winding cycle
DE10235209 2002-08-01
PCT/EP2003/008100 WO2004013028A1 (en) 2002-08-01 2003-07-24 Device for catching a thread at the beginning of a reeling operation

Publications (2)

Publication Number Publication Date
EP1525150A1 EP1525150A1 (en) 2005-04-27
EP1525150B1 true EP1525150B1 (en) 2006-08-30

Family

ID=29557874

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03766270A Expired - Lifetime EP1525150B1 (en) 2002-08-01 2003-07-24 Device for catching a thread at the beginning of a reeling operation

Country Status (8)

Country Link
EP (1) EP1525150B1 (en)
JP (1) JP4021895B2 (en)
CN (1) CN1323020C (en)
AT (1) ATE338004T1 (en)
DE (2) DE10235209C1 (en)
DK (1) DK1525150T3 (en)
ES (1) ES2270112T3 (en)
WO (1) WO2004013028A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8292211B2 (en) 2007-08-17 2012-10-23 Lohia Starlinger Limited Yarn grasping device for automatic yarn transfer in turret type winders
DE102012215772B3 (en) * 2012-09-05 2013-12-24 Georg Sahm Gmbh & Co. Kg Winding material spreader

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009033099A1 (en) 2009-07-15 2011-02-03 Oerlikon Textile Gmbh & Co. Kg spool holder
DE102016012201A1 (en) 2016-10-12 2018-04-12 Oerlikon Textile Gmbh & Co. Kg spooling
CN108639862B (en) * 2018-07-02 2023-12-19 浙江凯成智能设备股份有限公司 Yarn driving mechanism of bobbin winder

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Publication number Priority date Publication date Assignee Title
US4208016A (en) * 1976-03-29 1980-06-17 Owens-Corning Fiberglas Corporation Method and apparatus for collecting strand
US4205800A (en) * 1977-03-23 1980-06-03 Saint-Gobain Industries Strand attenuation and winding apparatus
DE8414636U1 (en) * 1984-05-12 1985-09-12 Barmag Barmer Maschinenfabrik Ag, 5630 Remscheid Winding device for threads
CA1239382A (en) * 1985-03-29 1988-07-19 Leslie J. Harris Strand winding apparatus
US5460333A (en) * 1992-07-21 1995-10-24 N.V. Bekaert S.A. Method apparatus and spool for automated winding
DE19646335A1 (en) * 1995-11-20 1997-05-22 Barmag Barmer Maschf Spool sleeve for winding thread
DE19637298A1 (en) * 1996-09-13 1998-03-19 Schlafhorst & Co W Bobbin winder sleeve centering plate
KR100518649B1 (en) * 1996-12-20 2006-01-27 바마크 악티엔게젤샤프트 Winding Machine with Guiding Device
DE19743278C2 (en) * 1997-09-30 1999-10-21 Sahm Georg Fa Method and winding machine for winding a continuously running thread into bobbins

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8292211B2 (en) 2007-08-17 2012-10-23 Lohia Starlinger Limited Yarn grasping device for automatic yarn transfer in turret type winders
DE102012215772B3 (en) * 2012-09-05 2013-12-24 Georg Sahm Gmbh & Co. Kg Winding material spreader
EP2706135A1 (en) 2012-09-05 2014-03-12 Georg Sahm GmbH & Co. KG Coiled material spreading device

Also Published As

Publication number Publication date
JP4021895B2 (en) 2007-12-12
WO2004013028A9 (en) 2006-06-22
WO2004013028A1 (en) 2004-02-12
ATE338004T1 (en) 2006-09-15
DE10235209C1 (en) 2003-12-18
EP1525150A1 (en) 2005-04-27
JP2005534589A (en) 2005-11-17
CN1323020C (en) 2007-06-27
DE50304877D1 (en) 2006-10-12
CN1675119A (en) 2005-09-28
DK1525150T3 (en) 2007-01-08
ES2270112T3 (en) 2007-04-01

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