EP2454180A1 - Bobbin holder - Google Patents

Bobbin holder

Info

Publication number
EP2454180A1
EP2454180A1 EP10727431A EP10727431A EP2454180A1 EP 2454180 A1 EP2454180 A1 EP 2454180A1 EP 10727431 A EP10727431 A EP 10727431A EP 10727431 A EP10727431 A EP 10727431A EP 2454180 A1 EP2454180 A1 EP 2454180A1
Authority
EP
European Patent Office
Prior art keywords
clamping
thread
winding
bobbin holder
bush
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.)
Granted
Application number
EP10727431A
Other languages
German (de)
French (fr)
Other versions
EP2454180B1 (en
Inventor
Claus Matthies
Jan Westphal
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Oerlikon Textile GmbH and Co KG
Original Assignee
Oerlikon Textile GmbH and Co KG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Oerlikon Textile GmbH and Co KG filed Critical Oerlikon Textile GmbH and Co KG
Publication of EP2454180A1 publication Critical patent/EP2454180A1/en
Application granted granted Critical
Publication of EP2454180B1 publication Critical patent/EP2454180B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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 invention relates to a bobbin holder for winding a thread according to the preamble of claim 1.
  • the bobbins are wound alternately by two bobbin holders of a winding machine, which are arranged on a movable carrier and thus guided alternately into a winding area and a changing area.
  • the thread is transferred from the full bobbin of the bobbin holder to an empty bobbin tube of the second bobbin holder. This process requires that the thread be caught and cut or torn for wrapping on the empty bobbin tube or bobbin holder. This creates a free end of the thread, which must be fixed to the winding tube or on the bobbin holder in order not to jeopardize the new winding process.
  • a bobbin holder in which the thread end is fixed immediately adjacent to the winding tube on a winding spindle.
  • the winding spindle has a thread catching device and a thread clamping means.
  • the thread clamping means is formed by a radially movable clamping body, which is held on the winding spindle by a centrifugal force in a clamping position and so together with a catch element for fixing the thread leads.
  • a bobbin holder in which the catching device is formed from a catch bush with a guide slot and a concentrically arranged at a distance guide bushing with a guide slot. Between the catch bush and the guide bush a clamping device in the form of an elastic ring is formed, which is arranged between the two bushes to form a nip.
  • the fixation of the thread between the guide bush and the elastomer ring In
  • such elastic clamp body basically have the disadvantage that due to their aging properties, the clamping forces for fixing the
  • the thread clamping means is formed by a hollow cylindrical clamping bush, which is fitted with an outer cone in a limited by the catch lugs of the thread catcher inner diameter such that a substantially axially directed and Aufsteckende towards open clamping slot between the clamping bush and the catch nose forms.
  • the invention also has the particular advantage that the trained directly below a catch nose clamping slot causes that form very short ends of the thread.
  • the severing of the thread is favored, so that can form very short ends of the thread.
  • the clamping bush has a circumferential outer cone or more evenly distributed around the circumference Cone segments, so that each catch nose is assigned to one of several clamping slots.
  • the inventive design of the clamping slot between the clamping bushing and one of the catching lugs is preferably formed with a V-shaped opening cross section with an opening angle in the range of 1 ° to 30 °. This allows on the one hand to achieve a fast and secure fixing of the thread and on the other hand a release when pushing off the coil.
  • the release and fixation of the thread can be further improved by the clamping slot is formed by two outer cones with different pitch angles on the clamping bush. In this case, an inlet zone of the clamping slot has a larger opening angle than a clamping zone of the clamping slot.
  • the thread guide can be advantageously improved by the development of the invention, in which the clamping bush to the end of the catch noses out has a cylindrical guide portion extending from below the catch nose to over the length of the catch out addition.
  • a guided on the circumference of the guide portion of the clamping bushes thread can be performed by suitable guide means in a simple manner for catching below the catch noses.
  • the bobbin holder according to the invention can also be advantageously used for winding a plurality of threads parallel to each other.
  • the winding spindle for receiving a plurality of winding tubes on the periphery has a plurality of axially offset yarn catching devices and thread clamping means.
  • a - Medium can thus be formed by a clamping bush, which interact in each case with the catch lugs of the yarn catching devices.
  • FIG. 1 is a schematic view of a first embodiment of the bobbin holder according to the invention
  • FIG. 2 shows schematically a view of the free end of the winding spindle from the embodiment of FIG. 1
  • FIG. 3 is a schematic cross-sectional view of the clamping slot of the embodiment of FIGS. 1 and 2
  • Fig. 4 shows schematically a view of an embodiment of a clamping bush
  • Fig. 5 shows schematically a cross-sectional view of a clamping slot at the free
  • FIG. 6 is a schematic view of another embodiment of the coil holder according to the invention.
  • a first embodiment of the coil holder according to the invention is shown schematically.
  • the bobbin holder has a projecting winding spindle 1, which carries a winding tube 2 at its periphery.
  • the winding tube 2 is pushed up to a stop 5 on the winding spindle 1 and is clamped by a clamping device on the jacket of the winding spindle 1 (not shown here).
  • the winding spindle 1 is coupled to an electric motor 3 at a drive end 16.
  • the winding spindle 1 a Fadenfangein- direction 6 and a thread clamping means 7.
  • Such a coil holder is usually used in a winding machine to wind a continuously tapered thread on the circumference of the winding tube to form a coil.
  • Such a winding machine is from the
  • Fig. 2 is an enlarged view of the Aufsteckendes 10 of the winding spindle 1 is shown schematically.
  • the thread catcher 6 is formed in this embodiment by a plurality of axially outstanding catch noses 8. Overall, four uniformly distributed on the circumference of the winding spindle 1 catch noses 8 are formed on the circumference of the winding spindle 1, wherein only the catch noses 8 are visible in the figures.
  • the catch noses 8 are arranged directly on the end face of the winding spindle 1, wherein the outer diameter formed by the catch noses 8 is equal to the outer diameter of the winding spindle 1.
  • the catch lugs 8 have a directed in the direction of rotation of the winding spindle tilt, so that forms a catch groove 17 between the catch nose 8 and the end face of the winding spindle 1.
  • Each of the catch noses 8 is formed identically on the winding spindle 1.
  • the winding spindle 1 is formed from a plurality of components, which will not be explained in detail at this point.
  • the winding spindle 1 carries a clamping device in order to fix the winding tube 2 on the circumference of the winding spindle 1.
  • a drive shaft is provided in the interior of the winding spindle 1, which is connected directly to the electric motor. In that regard, it is customary to form the catch noses 8 on a socket which is fixedly connected to a Aufsteckende 10 with the remaining parts of the winding spindle 1.
  • the catch lugs 8 surround with their inside a clamping bush 9, which is hollow cylindrical and firmly connected to the push-on end 10 of the winding spindle 1.
  • the clamping bush 9 adjoins directly on the end face of the winding spindle 1, and is adapted with an outer cone 11.1 to an inner diameter formed by the catch noses 8 such that a clamping slot 12 is formed between the outer cone 11.1 and the catch nose 8.
  • the outer cone 11.1 is circumferentially formed at the end of the clamping bush 9 and thus produces for each catch nose 8 a directly below the catch nose 8 formed clamping slot 12.
  • four catch noses 8 are arranged with four associated clamping slots 12 on the circumference of the winding spindle 1 in this embodiment ,
  • FIG. 3 is an enlarged cross-sectional view of a catch nose 8 is shown with a clamping slot 12.
  • the clamping slot 12 is formed in this embodiment by two merging outer cones 11.1 and 11.2 of the clamping bush 9.
  • a first section of the clamping slot 12 has a value determined by the external cone 11.1 opening cross-section with an opening angle (X 1 in. This section of the clamping slot 12 is referred to herein as a clamping zone.
  • a second immediately followed by the area of the clamping slot is formed by the second outer cone 11.2 and comprises a substantially larger opening cross-section with an opening angle ⁇ 2
  • Clamping slot 12 is referred to as an inlet zone.
  • the clamping slot 12 thus extends in the axial direction of the winding spindle 1 and is open to Aufsteckende 10.
  • the embodiment of the clamping slot 12 is particularly advantageous for automatically releasing the thread end fixed in the clamping slot 12 when a coil is being pushed away from the winding spindle 1. Both the axial alignment of the clamping slot 12 and the larger opening angle ⁇ 2 of the inlet zone of the clamping slot 12 favor the release of the thread end when pushing a coil.
  • the opening angle ⁇ l is preferably in a range of 1 ° to 15 °.
  • the opening angle ⁇ 2 in the inlet area is in a range of 10 ° to 30 °.
  • the clamping bush 9 is pot-shaped, wherein the outer cone 11. 1 is arranged at the free end of the clamping bush 9.
  • the clamping bush 9 is screwed by an end wall 15 directly to the winding spindle 1.
  • the clamping bush 9 forms a guide section 4, which extends from below the catch noses 8 to beyond the free end of the catch noses 8 addition.
  • the guide section 14 of the clamping bush 9 has a smaller outside diameter caused by the cones 11.1 and 11.2 than the inside area of the catch noses 8.
  • the guide section 14 of the clamping bush 9 can be advantageously used to guide a thread in order to guide it through guide means below the catch noses 8 respectively.
  • Such guide means are known for example from the winding machine, as described in the document WO 2007/073860. In that regard, reference is made to the cited document for explanation of the function and training of such guide and expressly incorporated herein by reference.
  • the thread catcher 6 and the thread clamping means 7 are formed rotationally symmetrically at the push-on end 10 of the winding spindle 1.
  • the thread catcher 6 and the thread clamping means 7 are formed rotationally symmetrically at the push-on end 10 of the winding spindle 1.
  • the outer cone of the clamping block 9 for forming the clamping slots 12 may be formed segment-shaped on the circumference of a clamping bush 9.
  • a clamping bush is shown schematically for example in FIG. 4.
  • a plurality of cone segments 13 are provided at one end of the clamping bush, which are distributed uniformly on the circumference of the clamping bush 9.
  • the number and position of the cone segments 13 is identical to the number and position of the Aufsteckende 10 of the winding spindle 1 formed catch noses 8 of the thread catcher 6. This results in accordance with the shapes of the cone segments 13 to each catch nose 8, a clamping slot 12th
  • the clamping slot 12 formed by the clamping bush 9 shown in FIG. 4 is shown for this purpose.
  • the clamping slot 12 is formed by a cone 11, so that a uniform opening angle ⁇ is established.
  • Such opening angles ⁇ are in a range between 1 ° and 30 °, depending on the type of thread which is to be wound up for spooling.
  • the yarn catching device 6 and yarn clamping means 7 described in connection with the exemplary embodiment according to FIG. 1 are basically also suitable for catching and fixing a yarn at any point of the winding spindle.
  • a winding spindle 1 holds a plurality of bobbin tubes 2.1 and 2.2 axially next to one another in order to be able to move on each of the winding bobbins. sleeves 2.1 and 2.2 each to wind a thread to a coil.
  • the winding spindle 1 is connected at its drive end 16 with an electric motor 3.
  • the yarn catching devices 6.1 and 6.2 as well as the thread clamping means 7.1 and 7.2 are in this case, as already described above, formed by a plurality of catch noses and a clamping bush.
  • the clamping bush in the central region of the winding spindle is designed to be hollow-cylindrical throughout.
  • the design of the clamping slots and the operation is identical to the aforementioned embodiment, so that no further explanation takes place at this point.
  • the coil holder according to the invention is thus particularly suitable for fixing a thread end at the beginning of a winding cycle on the circumference of the winding spindle.
  • smooth and unprocessed winding tubes can be used without any catch notches.

Landscapes

  • Storage Of Web-Like Or Filamentary Materials (AREA)
  • Winding Filamentary Materials (AREA)
  • Spinning Or Twisting Of Yarns (AREA)

Abstract

The invention relates to a bottom holder for winding up a thread, wherein a bobbin case (2) can be slid onto a protruding bobbin spindle (1). In order to catch and clamp a thread on the circumference of the bobbin spindle (1) at the beginning of a bobbin travel, a thread catching device (16) and a thread clamping means (7) are provided at a free insertion end of the bobbin spindle. In order to both securely clamp and automatically release the thread end when sliding off a bobbin, according to the invention, the clamping means is formed by a hollow cylindrical clamping bushing (9), an outer cone (11) thereof being fitted into an inner diameter bounded by catches (8), such that a clamping slit (12) substantially axially oriented and open toward the insertion end (10) of the bobbin spindle is formed between the clamping bushing and the catch (8).

Description

Spulenhalter Die Erfindung betrifft einen Spulenhalter zum Aufwickeln eines Fadens gemäß dem Oberbegriff des Anspruchs 1.  The invention relates to a bobbin holder for winding a thread according to the preamble of claim 1.
Beim kontinuierlichen Aufwickeln von synthetischen Fäden, beispielsweise in einer Schmelzspinnanlage ist es bekannt, dass die Spulen abwechselnd durch zwei Spulenhalter einer Aufwickelmaschine gewickelt werden, die an einem beweglichen Träger angeordnet sind und so abwechselnd in einen Wickelbereich und einen Wechselbereich geführt werden. Bei dem kontinuierlichen Aufwickeln des Fadens ist es vorgesehen, dass nach Fertigstellung einer vollen Spule auf einem der Spulenhalter der Faden von der vollen Spule des Spulenhalters auf eine leere Spulhülse des zweiten Spulhalters übergeben wird. Für diesen Vorgang ist es erforderlich, dass der Faden zum Anwickeln an der leeren Spulhülse oder dem Spulenhalter gefangen und geschnitten oder durchgerissen wird. Somit entsteht ein freies Fadenende, das an der Spulhülse oder an dem Spulenhalter fixiert werden muss, um den neuen Spulvorgang nicht zu gefährden. In the continuous winding of synthetic threads, for example in a melt spinning plant, it is known that the bobbins are wound alternately by two bobbin holders of a winding machine, which are arranged on a movable carrier and thus guided alternately into a winding area and a changing area. In the continuous winding of the thread, it is provided that after completion of a full bobbin on one of the bobbin holder, the thread is transferred from the full bobbin of the bobbin holder to an empty bobbin tube of the second bobbin holder. This process requires that the thread be caught and cut or torn for wrapping on the empty bobbin tube or bobbin holder. This creates a free end of the thread, which must be fixed to the winding tube or on the bobbin holder in order not to jeopardize the new winding process.
Aus der DE 103 33 273 Al ist ein Spulenhalter bekannt, bei welchem das Fadenende unmittelbar neben der Spulhülse an einer Spulspindel fixiert wird. Hierzu weist die Spulspindel eine Fadenfangeinrichtung sowie ein Fadenklemmmittel auf. Das Fadenklemmmittel wird durch einen radial beweglichen Klemmkörper gebildet, der an der Spulspindel durch eine Fliehkraft in einer Klemmposition gehalten wird und so gemeinsam mit einem Fangelement zur Fixierung des Fadens führt. Damit ist es möglich, glatte und nicht bearbeitete Spulhülsen zur Aufnahme der Spulen zu verwenden. Derartige Systeme besitzen grundsätzlich den Nachteil, dass bewegliche Teile an der Spulspindel innerhalb einer Fadenfangeinrichtung oder als Fadenklemmmittel einem ständigen Verschleiß unterliegen. Zudem führen Verschmutzungen, die beispielsweise durch einen unvermeidlichen Fadenabrieb entstehen, zu Störungen in der fliehkraftbedingten Beweglichkeit derartiger Klemmkörper. Somit sind Fangfehler aufgrund mangelhafter Klemmungen des Fadens möglich. Um einen Faden außerhalb der Spulhülse unmittelbar an einer Spulspindel zu fixieren ist auch ein anderes System bekannt, wie beispielsweise in der DE 2 344 377 Al oder der DE 93 01 313 Ul beschrieben. Bei diesen bekannten Spulenhaltern ist durch Fangelemente und Klemmelemente am Umfang der Spulspindel ein radial umlaufender Klemmspalt gebildet. Hierbei wird der Faden nach dem Fan- gen in dem Klemmspalt eingezogen und fixiert. Um am Ende des Spulvorgangs die Spule von der Spulspindel abschieben zu können, ist es erforderlich, dass das Fangelement oder das Klemmelement am Umfang der Spulspindel beweglich geführt ist, so dass eine Freigabe des Fadens aus dem Klemmspalt erfolgen kann. Damit treten die bereits zuvor genannten Probleme bei beweglichen Teilen der Fangeinrichtung und der Fadenklemmmittel auf. From DE 103 33 273 Al a bobbin holder is known, in which the thread end is fixed immediately adjacent to the winding tube on a winding spindle. For this purpose, the winding spindle has a thread catching device and a thread clamping means. The thread clamping means is formed by a radially movable clamping body, which is held on the winding spindle by a centrifugal force in a clamping position and so together with a catch element for fixing the thread leads. This makes it possible to use smooth and unprocessed winding tubes for receiving the coils. Basically, such systems have the disadvantage that moving parts on the winding spindle are subject to constant wear within a thread catching device or as thread clamping means. In addition, lead contaminants, the For example, caused by an unavoidable thread abrasion, disturbances in the centrifugal force-induced mobility of such clamp body. Thus, capture errors due to poor clamping of the thread are possible. To fix a thread outside the winding tube directly to a winding spindle, another system is also known, as described, for example, in DE 2 344 377 A1 or DE 93 01 313 U1. In these known coil holders, a radially encircling clamping gap is formed by catching elements and clamping elements on the circumference of the winding spindle. In this case, the thread is pulled in and fixed in the nip after being folded. In order to be able to push off the bobbin from the winding spindle at the end of the winding process, it is necessary for the catching element or the clamping element to be movably guided on the circumference of the winding spindle so that a release of the thread from the clamping gap can take place. Thus, the previously mentioned problems occur with moving parts of the catching device and the thread clamping means.
Aus der DE 102 35 209 Al ist ein Spulenhalter bekannt, bei welchem die Fangeinrichtung aus einer Fangbuchse mit einem Führungsschlitz sowie einer im Abstand dazu konzentrisch angeordneten Führungsbuchse mit einem Führungsschlitz gebildet ist. Zwischen der Fangbuchse und der Führungsbuchse ist eine Klemmeinrichtung in Form eines elastischen Ringes ausgebildet, welcher zwischen den beiden Buchsen zur Bildung eines Klemmspaltes angeordnet ist. Hierbei erfolgt die Fixierung des Fadens zwischen der Führungsbuchse und dem Elastomerring. Derartige elastische Klemmkörper besitzen jedoch grundsätzlich den Nachteil, dass aufgrund ihrer Alterungseigenschaften die Klemmkräfte zur Fixierung desFrom DE 102 35 209 Al a bobbin holder is known in which the catching device is formed from a catch bush with a guide slot and a concentrically arranged at a distance guide bushing with a guide slot. Between the catch bush and the guide bush a clamping device in the form of an elastic ring is formed, which is arranged between the two bushes to form a nip. Here, the fixation of the thread between the guide bush and the elastomer ring. However, such elastic clamp body basically have the disadvantage that due to their aging properties, the clamping forces for fixing the
Fadens mit fortschreitender Betriebsdauer nachlassen. Zudem ist bei der Fixierung des Fadens ein Nachrutschen innerhalb des durch den elastischen Körper gebildeten Klemmspalt möglich, was ebenfalls zu Fangfehlern führt. Es ist nun Aufgabe der Erfindung, einen Spulhalter der gattungsgemäßen Art bereitzustellen, bei welcher eine Fadenfangeinrichtung und ein Fadenklemmmittel derart zusammenwirken, dass einerseits ein sicheres Fixieren des Fadens an der Spulspindel und andererseits ein Abschieben der Spule von der Spulspindel ohne Behinderung gewährleistet ist. Diese Aufgabe wird erfindungsgemäß dadurch gelöst, dass das Fadenklemmmittel durch eine hohlzylindrische Klemmbuchse gebildet ist, die mit einem Außenkonus in einen durch die Fangnasen der Fadenfangeinrichtung begrenzten Innendurchmesser derart eingepasst ist, dass sich ein im wesentlichen axial gerichteter und zum Aufsteckende hin offener Klemmschlitz zwischen der Klemmbuchse und der Fangnase bildet. Slacken the thread as the operating time progresses. In addition, a slipping within the clamping gap formed by the elastic body is possible in the fixation of the thread, which also leads to capture errors. It is an object of the invention to provide a winding holder of the generic type, in which a thread catcher and a thread clamping means cooperate such that on the one hand a secure fixing of the thread on the winding spindle and on the other hand, a deportation of the spool is ensured by the winding spindle without obstruction. This object is achieved in that the thread clamping means is formed by a hollow cylindrical clamping bush, which is fitted with an outer cone in a limited by the catch lugs of the thread catcher inner diameter such that a substantially axially directed and Aufsteckende towards open clamping slot between the clamping bush and the catch nose forms.
Vorteilhafte Weiterbildungen der Erfindung sind durch die Merkmale und Merkmalskombinationen der jeweiligen Unteransprüche definiert. Trotz des Vorbehaltes, einen festen Klemmschlitz zwischen fest montierten Teilen der Spulspindel zur Fadenfixierung zu nutzen, hat sich gezeigt, dass die axiale Ausrichtung des Klemmschlitzes eine Freigabe des Fadens beim Abschiebevorgang der Spule ermöglicht. So wird beim Abschieben der Spule der Faden selbsttätig aus dem zum Aufsteckende hin offenen Klemmschlitz gezogen. Advantageous developments of the invention are defined by the features and feature combinations of the respective subclaims. Despite the proviso to use a fixed clamping slot between permanently mounted parts of the winding spindle for thread fixing, it has been shown that the axial alignment of the clamping slot allows release of the thread during the Abschiebevorgang the coil. Thus, when pushing off the spool, the thread is automatically pulled out of the clamping slot that is open towards the insertion end.
Die Erfindung besitzt zudem den besonderen Vorteil, dass der unmittelbar unterhalb einer Fangnase ausgebildete Klemmschlitz dazu führt, dass sich sehr kurze Fadenenden ausbilden. Durch das Einziehen des Fadens in den Klemmschlitz zwischen der Fangnase und der Klemmbuchse wird eine unmittelbare Fixierung des Fadens erreicht, die zu einem schnellen Aufbau der Fadenspannung in dem Faden führt. Dadurch wird das Durchtrennen des Fadens begünstigt, so dass sich sehr kurze Fadenenden ausbilden können. The invention also has the particular advantage that the trained directly below a catch nose clamping slot causes that form very short ends of the thread. By drawing the thread into the clamping slot between the catch nose and the clamping bush an immediate fixation of the thread is achieved, which leads to a rapid buildup of the thread tension in the thread. As a result, the severing of the thread is favored, so that can form very short ends of the thread.
Um möglichst keine Unwuchten an der Spulspindel zu erzeugen, weist gemäß einer vorteilhaften Weiterbildung der Erfindung die Klemmbuchse einen umlaufenden Außenkonus oder mehrere gleichmäßig am Umfang verteilt ausgebildete Konussegmente auf, so dass jeder Fangnase einer von mehreren Klemmschlitzen zugeordnet ist. In order not to produce any unbalance on the winding spindle, according to an advantageous embodiment of the invention, the clamping bush has a circumferential outer cone or more evenly distributed around the circumference Cone segments, so that each catch nose is assigned to one of several clamping slots.
Die erfindungsgemäße Ausbildung des Klemmschlitzes zwischen der Klemm- buchse und einer der Fangnasen wird bevorzugt mit einem V-förmigen Öffnungsquerschnitt mit einem Öffnungswinkel im Bereich von 1° bis 30° ausgebildet. Damit lassen sich einerseits ein schnelles und sicheres Fixieren des Fadens und andererseits eine Freigabe beim Abschieben der Spule erreichen. Insbesondere die Freigabe und Fixierung des Fadens lässt sich noch dadurch verbessern, indem der Klemmschlitz durch zwei Außenkonen mit unterschiedlichen Steigungswinkeln an der Klemmbuchse gebildet wird. Dabei weist eine Einlasszone des Klemmschlitzes einen größeren Öffnungswinkel als eine Klemmzone des Klemmschlitzes auf. The inventive design of the clamping slot between the clamping bushing and one of the catching lugs is preferably formed with a V-shaped opening cross section with an opening angle in the range of 1 ° to 30 °. This allows on the one hand to achieve a fast and secure fixing of the thread and on the other hand a release when pushing off the coil. In particular, the release and fixation of the thread can be further improved by the clamping slot is formed by two outer cones with different pitch angles on the clamping bush. In this case, an inlet zone of the clamping slot has a larger opening angle than a clamping zone of the clamping slot.
Um zu Beginn einer Spulreise den Faden von einer Vollspule oder einer manuell geführten Saugpistole übernehmen zu können, ist es erforderlich, dass der Faden von den Fangnasen der Fadenfangeinrichtung gefangen wird. Die Fadenführung lässt sich hierbei vorteilhaft durch die Weiterbildung der Erfindung verbessern, in dem die Klemmbuchse zum Ende der Fangnasen hin einen zylindrischen Führungsabschnitt aufweist, der sich von unterhalb der Fangnase bis über die Länge der Fangnasen hinaus erstreckt. Damit kann ein am Umfang des Führungsabschnittes der Klemmbuchsen geführter Faden durch geeignete Führungsmittel in einfacher Art und Weise zum Fangen unterhalb der Fangnasen geführt werden. In order to be able to take over the thread from a full bobbin or a manually guided suction gun at the beginning of a winding cycle, it is necessary that the thread is caught by the catch noses of the thread catcher. The thread guide can be advantageously improved by the development of the invention, in which the clamping bush to the end of the catch noses out has a cylindrical guide portion extending from below the catch nose to over the length of the catch out addition. Thus, a guided on the circumference of the guide portion of the clamping bushes thread can be performed by suitable guide means in a simple manner for catching below the catch noses.
Der erfindungsgemäße Spulenhalter lässt sich auch vorteilhaft zum Aufwickeln mehrerer Fäden parallel nebeneinander nutzen. In diesem Fall ist insbesondere die Weiterbildung der Erfindung vorgesehen, bei welcher die Spulspindel zur Aufnahme mehrerer Spulhülsen am Umfang mehrere axial versetzt angeordnete Fa- denfangeinrichtungen und Fadenklemmmittel aufweist. Jedes der Fadenklemm- The bobbin holder according to the invention can also be advantageously used for winding a plurality of threads parallel to each other. In this case, in particular, the development of the invention is provided, in which the winding spindle for receiving a plurality of winding tubes on the periphery has a plurality of axially offset yarn catching devices and thread clamping means. Each of the thread clamps
- A - mittel lässt sich so durch eine Klemmbuchse bilden, die jeweils mit den Fangnasen der Fadenfangeinrichtungen zusammenwirken. - A - Medium can thus be formed by a clamping bush, which interact in each case with the catch lugs of the yarn catching devices.
Im nachfolgenden wird die Erfindung anhand einiger Ausführungsbeispiele des erfindungsgemäßen Spulenhalters unter Bezug auf die beigefügten Figuren näher beschrieben. In the following, the invention will be described with reference to some embodiments of the coil holder according to the invention with reference to the accompanying figures.
Es stellen dar: Fig. 1 schematisch eine Ansicht eines ersten Ausführungsbeispiels des erfindungsgemäßen Spulenhalters 1 is a schematic view of a first embodiment of the bobbin holder according to the invention
Fig. 2 schematisch eine Ansicht des freien Endes der Spulspindel aus dem Ausführungsbeispiel nach Fig. 1  2 shows schematically a view of the free end of the winding spindle from the embodiment of FIG. 1
Fig. 3 schematisch eine Querschnittsansicht des Klemmschlitzes des Ausfüh- rungsbeispiels aus Fig. 1 und 2  3 is a schematic cross-sectional view of the clamping slot of the embodiment of FIGS. 1 and 2
Fig. 4 schematisch eine Ansicht eines Ausführungsbeispiels einer Klemmbuchse  Fig. 4 shows schematically a view of an embodiment of a clamping bush
Fig. 5 schematisch eine Querschnittsansicht eines Klemmschlitzes am freienFig. 5 shows schematically a cross-sectional view of a clamping slot at the free
Ende der Spulspindel gemäß dem Ausführungsbeispiel nach Fig. 1 Fig. 6 schematisch eine Ansicht eines weiteren Ausführungsbeispiels des erfindungsgemäßen Spulenhalters End of the winding spindle according to the embodiment of Figure 1 Fig. 6 is a schematic view of another embodiment of the coil holder according to the invention
In Fig. 1 ist schematisch ein erstes Ausführungsbeispiel des erfindungsgemäßen Spulenhalters gezeigt. Der Spulenhalter weist eine auskragende Spulspindel 1 auf, die an ihrem Umfang eine Spulhülse 2 trägt. Die Spulhülse 2 ist bis zu einem Anschlag 5 auf die Spulspindel 1 geschoben und wird durch eine Klemmeinrichtung am Mantel der Spulspindel 1 geklemmt (hier nicht dargestellt). Die Spulspindel 1 ist an einem Antriebsende 16 mit einem Elektromotor 3 gekoppelt. An einem gegenüberliegenden Aufsteckende 10 weist die Spulspindel 1 eine Fadenfangein- richtung 6 und ein Fadenklemmmittel 7 auf. Ein derartiger Spulenhalter wird üblicherweise in einer Aufwickelmaschine eingesetzt, um einen kontinuierlich zulaufenden Faden am Umfang der Spulhülse zu einer Spule aufzuwickeln. Eine derartige Aufspulmaschine ist aus der In Fig. 1, a first embodiment of the coil holder according to the invention is shown schematically. The bobbin holder has a projecting winding spindle 1, which carries a winding tube 2 at its periphery. The winding tube 2 is pushed up to a stop 5 on the winding spindle 1 and is clamped by a clamping device on the jacket of the winding spindle 1 (not shown here). The winding spindle 1 is coupled to an electric motor 3 at a drive end 16. At an opposite Aufsteckende 10, the winding spindle 1 a Fadenfangein- direction 6 and a thread clamping means 7. Such a coil holder is usually used in a winding machine to wind a continuously tapered thread on the circumference of the winding tube to form a coil. Such a winding machine is from the
WO 2007/073860 Al bekannt. Insoweit wird an dieser Stelle zu der genannten Druckschrift Bezug genommen. Bei derartigen Aufspulmaschinen sind zwei in Abstand zueinander angeordnete Spulenhalter an einem Drehteller befestigt, so dass die Spulenhalter abwechselnd in einen Aufspulbereich zum Aufwickeln des Fadens und einen Wechselbereich zum Abnehmen einer Vollspule geführt werden. Bei dem Wechsel der Spulenhalter wird der zulaufende Faden von der fertig gewickelten Spule zu einer Spulhülse übergeben. WO 2007/073860 Al known. In that regard, reference is made to the cited document at this point. In such winding machines two spaced coil holder are mounted on a turntable, so that the bobbin holders are alternately performed in a Aufspulbereich for winding the thread and a change region for removing a full bobbin. When changing the bobbin holder of the incoming thread is transferred from the finished wound coil to a winding tube.
Zu diesem Zweck weist der Spulenhalter - wie in Fig. 1 gezeigt - am Aufsteckende 10 die Fadenfangeinrichtung 6 und das Fadenklemmmittel 7 auf. Zur weiteren Erläuterung der Fadenfangeinrichtung 6 und des Fadenklemmmittels 7 wird auf die nachfolgende Beschreibung zu der Fig. 2 Bezug genommen. For this purpose, the bobbin holder - as shown in Fig. 1 - at Aufsteckende 10, the thread catcher 6 and the yarn clamping means 7. For further explanation of the thread catcher 6 and the thread clamping means 7 reference is made to the following description of FIG. 2 reference.
In Fig. 2 ist schematisch eine vergrößerte Ansicht des Aufsteckendes 10 der Spulspindel 1 dargestellt. Die Fadenfangeinrichtung 6 wird in diesem Ausführungsbeispiel durch mehrere axial hervorragende Fangnasen 8 gebildet. Insgesamt sind an dem Umfang der Spulspindel 1 vier gleichmäßig am Umfang der Spulspindel 1 verteilte Fangnasen 8 ausgebildet, wobei in den Figuren nur jeweils die Fangnasen 8 sichtbar sind. Die Fangnasen 8 sind unmittelbar an der Stirnseite der Spulspindel 1 angeordnet, wo- bei der durch die Fangnasen 8 gebildete Außendurchmesser gleich dem Außendurchmesser der Spulspindel 1 ist. Die Fangnasen 8 weisen eine in Drehrichtung der Spulspindel gerichtete Neigung auf, so dass sich zwischen der Fangnase 8 und der Stirnseite der Spulspindel 1 eine Fangnut 17 bildet. Jede der Fangnasen 8 ist identisch an der Spulspindel 1 ausgebildet. An dieser Stelle sei ausdrücklich gesagt, dass die Spulspindel 1 aus mehreren Bauteilen gebildet ist, die an dieser Stelle nicht näher erläutert werden. So trägt die Spulspindel 1 eine Klemmeinrichtung, um die Spulhülse 2 am Umfang der Spulspindel 1 zu fixieren. Desweiteren ist im Innern der Spulspindel 1 eine An- triebswelle vorgesehen, die unmittelbar mit dem Elektromotor verbunden ist. Insoweit ist es üblich, die Fangnasen 8 an einer Buchse auszubilden, die an einem Aufsteckende 10 mit den übrigen Teilen der Spulspindel 1 fest verbunden ist. In Fig. 2 is an enlarged view of the Aufsteckendes 10 of the winding spindle 1 is shown schematically. The thread catcher 6 is formed in this embodiment by a plurality of axially outstanding catch noses 8. Overall, four uniformly distributed on the circumference of the winding spindle 1 catch noses 8 are formed on the circumference of the winding spindle 1, wherein only the catch noses 8 are visible in the figures. The catch noses 8 are arranged directly on the end face of the winding spindle 1, wherein the outer diameter formed by the catch noses 8 is equal to the outer diameter of the winding spindle 1. The catch lugs 8 have a directed in the direction of rotation of the winding spindle tilt, so that forms a catch groove 17 between the catch nose 8 and the end face of the winding spindle 1. Each of the catch noses 8 is formed identically on the winding spindle 1. It should be expressly stated at this point that the winding spindle 1 is formed from a plurality of components, which will not be explained in detail at this point. Thus, the winding spindle 1 carries a clamping device in order to fix the winding tube 2 on the circumference of the winding spindle 1. Furthermore, a drive shaft is provided in the interior of the winding spindle 1, which is connected directly to the electric motor. In that regard, it is customary to form the catch noses 8 on a socket which is fixedly connected to a Aufsteckende 10 with the remaining parts of the winding spindle 1.
Die Fangnasen 8 umschließen mit ihrer Innenseite eine Klemmbuchse 9, die hohl- zylindrisch ausgebildet ist und mit dem Aufsteckende 10 der Spulspindel 1 fest verbunden. Die Klemmbuchse 9 schließt sich unmittelbar an der Stirnseite der Spulspindel 1 an, und ist mit einem Außenkonus 11.1 an einen durch die Fangnasen 8 gebildeten Innendurchmesser derart angepasst, dass sich zwischen dem Außenkonus 11.1 und der Fangnase 8 ein Klemmschlitz 12 ausbildet. Der Außenko- nus 11.1 ist umlaufend am Ende der Klemmbuchse 9 ausgebildet und erzeugt somit zu jeder Fangnase 8 einen unmittelbar unterhalb der Fangnase 8 ausgebildeten Klemmschlitz 12. Somit sind an dem Umfang der Spulspindel 1 in diesem Ausführungsbeispiel vier Fangnasen 8 mit vier zugeordneten Klemmschlitzen 12 angeordnet. The catch lugs 8 surround with their inside a clamping bush 9, which is hollow cylindrical and firmly connected to the push-on end 10 of the winding spindle 1. The clamping bush 9 adjoins directly on the end face of the winding spindle 1, and is adapted with an outer cone 11.1 to an inner diameter formed by the catch noses 8 such that a clamping slot 12 is formed between the outer cone 11.1 and the catch nose 8. The outer cone 11.1 is circumferentially formed at the end of the clamping bush 9 and thus produces for each catch nose 8 a directly below the catch nose 8 formed clamping slot 12. Thus, four catch noses 8 are arranged with four associated clamping slots 12 on the circumference of the winding spindle 1 in this embodiment ,
Zur weiteren Erläuterung des Klemmschlitzes 12 zwischen der Fangnase 8 und der Klemmbuchse 9 wird des weiteren Bezug zu der Fig. 3 genommen. In Fig. 3 ist eine vergrößerte Querschnittsansicht einer Fangnase 8 mit einem Klemmschlitz 12 dargestellt. Der Klemmschlitz 12 wird in diesem Ausführungsbeispiel durch zwei ineinander übergehende Außenkonen 11.1 und 11.2 der Klemmbuchse 9 gebildet. Ein erster Abschnitt des Klemmschlitzes 12 weist einen durch den Außenkonus 11.1 bestimmten Öffnungsquerschnitt mit einem Öffnungswinkel (X1 auf. Dieser Abschnitt des Klemmschlitzes 12 wird hier als Klemmzone bezeichnet. Ein zweiter sich unmittelbar anschließender Bereich des Klemmschlitzes wird durch den zweiten Außenkonus 11.2 gebildet und weist einen wesentlich größeren Öffnungsquerschnitt mit einem Öffnungswinkel α2 auf. Dieser Abschnitt des Klemmschlitzes 12 wird als Einlasszone bezeichnet. Der Klemmschlitz 12 erstreckt sich somit in axialer Richtung der Spulspindel 1 und ist zum Aufsteckende 10 hin offen. Die Ausbildungsform des Klemmschlitzes 12 ist besonders vorteilhaft, um beim Abschieben einer Spule von der Spulspindel 1 das in dem Klemm- schlitz 12 fixierte Fadenende selbsttätig freizugeben. Sowohl die axiale Ausrichtung des Klemmschlitzes 12 als auch der größere Öffnungswinkel α2 der Einlasszone des Klemmschlitzes 12 begünstigen die Freigabe des Fadenendes beim Abschieben einer Spule. Eine schnelle und sichere Fixierung des Fadens nach dem Fangen durch die Fangnase 8 wird insbesondere durch die Klemmzone des Klemmschlitzes 12 garantiert, die einen kleineren Öffnungswinkel αi aufweist. So liegt der Öffnungswinkel αl vorzugsweise in einem Bereich von 1° bis 15°. Der Öffnungswinkel α2 im Einlassbereich liegt dagegen in einem Bereich von 10° bis 30°. Wie aus der Darstellung in Fig. 2 zu erkennen ist, ist die Klemmbuchse 9 topf- förmig ausgebildet, wobei der Außenkonus 11.1 am freien Ende der Klemmbuchse 9 angeordnet ist. Die Klemmbuchse 9 ist durch eine Stirnwand 15 unmittelbar mit der Spulspindel 1 verschraubt. Die Klemmbuchse 9 bildet dabei einen Führungsabschnitt 4, der sich von unterhalb der Fangnasen 8 bis über das freie Ende der Fangnasen 8 hinaus erstreckt. Der Führungsabschnitt 14 der Klemmbuchse 9 weist einen durch die Konen 11.1 und 11.2 bedingten kleineren Außendurchmesser auf, als der Innenbereich der Fangnasen 8. Damit lässt sich der Führungsabschnitt 14 der Klemmbuchse 9 vorteilhaft zur Führung eines Fadens nutzen, um diesen durch Führungsmittel unterhalb der Fangnasen 8 zu führen. For further explanation of the clamping slot 12 between the catch nose 8 and the clamping bush 9 is further reference to FIG. 3 taken. In Fig. 3 is an enlarged cross-sectional view of a catch nose 8 is shown with a clamping slot 12. The clamping slot 12 is formed in this embodiment by two merging outer cones 11.1 and 11.2 of the clamping bush 9. A first section of the clamping slot 12 has a value determined by the external cone 11.1 opening cross-section with an opening angle (X 1 in. This section of the clamping slot 12 is referred to herein as a clamping zone. A second immediately followed by the area of the clamping slot is formed by the second outer cone 11.2 and comprises a substantially larger opening cross-section with an opening angle α 2 Clamping slot 12 is referred to as an inlet zone. The clamping slot 12 thus extends in the axial direction of the winding spindle 1 and is open to Aufsteckende 10. The embodiment of the clamping slot 12 is particularly advantageous for automatically releasing the thread end fixed in the clamping slot 12 when a coil is being pushed away from the winding spindle 1. Both the axial alignment of the clamping slot 12 and the larger opening angle α 2 of the inlet zone of the clamping slot 12 favor the release of the thread end when pushing a coil. A fast and secure fixation of the thread after catching by the catch nose 8 is particularly guaranteed by the clamping zone of the clamping slot 12, which has a smaller opening angle αi. Thus, the opening angle αl is preferably in a range of 1 ° to 15 °. The opening angle α 2 in the inlet area, however, is in a range of 10 ° to 30 °. As can be seen from the illustration in FIG. 2, the clamping bush 9 is pot-shaped, wherein the outer cone 11. 1 is arranged at the free end of the clamping bush 9. The clamping bush 9 is screwed by an end wall 15 directly to the winding spindle 1. The clamping bush 9 forms a guide section 4, which extends from below the catch noses 8 to beyond the free end of the catch noses 8 addition. The guide section 14 of the clamping bush 9 has a smaller outside diameter caused by the cones 11.1 and 11.2 than the inside area of the catch noses 8. Thus, the guide section 14 of the clamping bush 9 can be advantageously used to guide a thread in order to guide it through guide means below the catch noses 8 respectively.
Derartige Führungsmittel sind beispielsweise aus der Aufspulmaschine bekannt, wie sie in der Druckschrift WO 2007/073860 beschrieben ist. Insoweit wird zur Erläuterung der Funktion und Ausbildung derartiger Führungsmittel auf die zitierte Druckschrift verwiesen und hier ausdrücklich Bezug genommen. Bei dem in Fig. 1 dargestellten Ausfuhrungsbeispiel ist wesentlich, dass die Fadenfangeinrichtung 6 und das Fadenklemmmittel 7 rotationssymmetrisch am Aufsteckende 10 der Spulspindel 1 ausgebildet sind. Somit lassen sich Unwuchten an der Spulspindel 1 vermeiden, so dass derartige Spulspindeln insbesondere für ho- he Aufwickelgeschwindigkeiten geeignet sind. Dementsprechend sind die vier Fangnasen 8 der Fadenfangeinrichtung 6 gleichmäßig dem Umfang der Spulspindel 1 verteilt ausgebildet. Such guide means are known for example from the winding machine, as described in the document WO 2007/073860. In that regard, reference is made to the cited document for explanation of the function and training of such guide and expressly incorporated herein by reference. In the exemplary embodiment illustrated in FIG. 1, it is essential that the thread catcher 6 and the thread clamping means 7 are formed rotationally symmetrically at the push-on end 10 of the winding spindle 1. Thus, imbalances on the winding spindle 1 can be avoided, so that such winding spindles are particularly suitable for high winding speeds. Accordingly, the four catch lugs 8 of the thread catcher 6 are uniformly distributed around the circumference of the winding spindle 1.
Auch der Außenkonus der Klemmbuche 9 zur Bildung der Klemmschlitze 12 könnte segmentförmig am Umfang einer Klemmbuchse 9 ausgebildet sein. Eine derartige Klemmbuchse ist beispielsweise schematisch in Fig. 4 dargestellt. Also, the outer cone of the clamping block 9 for forming the clamping slots 12 may be formed segment-shaped on the circumference of a clamping bush 9. Such a clamping bush is shown schematically for example in FIG. 4.
Bei der in Fig. 4 dargestellten Klemmbuchse 9 sind an einem Ende der Klemmbuchse mehrere Konussegmente 13 vorgesehen, die gleichmäßig am Umfang der Klemmbuchse 9 verteilt sind. Die Anzahl und die Lage der Konussegmente 13 ist identisch zu der Anzahl und Lage der am Aufsteckende 10 der Spulspindel 1 ausgebildeten Fangnasen 8 der Fadenfangeinrichtung 6. Damit ergeben sich entsprechend der Formen der Konussegmente 13 zu jeder Fangnase 8 ein Klemmschlitz 12. In the clamping bush 9 shown in Fig. 4 a plurality of cone segments 13 are provided at one end of the clamping bush, which are distributed uniformly on the circumference of the clamping bush 9. The number and position of the cone segments 13 is identical to the number and position of the Aufsteckende 10 of the winding spindle 1 formed catch noses 8 of the thread catcher 6. This results in accordance with the shapes of the cone segments 13 to each catch nose 8, a clamping slot 12th
In Fig. 5 ist hierzu der durch die in Fig. 4 dargestellte Klemmbuchse 9 gebildete Klemmschlitz 12 gezeigt. In diesem Ausführungsbeispiel wird der Klemmschlitz 12 durch einen Konus 11 gebildet, so dass sich ein gleichmäßiger Öffnungswinkel α einstellt. Derartige Öffnungswinkel α liegen je nach Fadentyp, welcher zur Spu- Ie aufgewickelt werden soll, in einem Bereich zwischen 1° und 30°. In FIG. 5, the clamping slot 12 formed by the clamping bush 9 shown in FIG. 4 is shown for this purpose. In this embodiment, the clamping slot 12 is formed by a cone 11, so that a uniform opening angle α is established. Such opening angles α are in a range between 1 ° and 30 °, depending on the type of thread which is to be wound up for spooling.
Die zu dem Ausführungsbeispiel nach Fig. 1 beschriebene Fadenfangeinrichtung 6 und Fadenklemmmittel 7 sind grundsätzlich auch geeignet, um an einer beliebigen Stelle der Spulspindel einen Faden zu fangen und zu fixieren. So ist in Fig. 6 ein Ausführungsbeispiel eines Spulenhalters gezeigt, bei welcher eine Spulspindel 1 mehrere Spulhülsen 2.1 und 2.2 axial nebeneinander hält, um an jeder der Spul- hülsen 2.1 und 2.2 jeweils einen Faden zu einer Spule zu wickeln. Die Spulspindel 1 ist an ihrem Antriebsende 16 mit einem Elektromotor 3 verbunden. Am Umfang der Spulspindel 1 in einem Bereich zwischen den Spulhülsen 2.1 und 2.2 sowie an einem Aufsteckende 10 ist jeweils eine Fadenfangeinrichtung 6.1 und 6.2 sowie ein Fadenklemmmittel 7.1 und 7.2 angeordnet. Die Fadenfangeinrichtungen 6.1 und 6.2 sowie die Fadenklemmmittel 7.1 und 7.2 werden hierbei wie bereits zuvor beschrieben, durch mehrere Fangnasen und eine Klemmbuchse gebildet. Die Klemmbuchse im mittleren Bereich der Spulspindel ist dabei durchgängig hohlzy- lindrisch ausgebildet. The yarn catching device 6 and yarn clamping means 7 described in connection with the exemplary embodiment according to FIG. 1 are basically also suitable for catching and fixing a yarn at any point of the winding spindle. Thus, in FIG. 6, an embodiment of a bobbin holder is shown, in which a winding spindle 1 holds a plurality of bobbin tubes 2.1 and 2.2 axially next to one another in order to be able to move on each of the winding bobbins. sleeves 2.1 and 2.2 each to wind a thread to a coil. The winding spindle 1 is connected at its drive end 16 with an electric motor 3. On the circumference of the winding spindle 1 in a region between the winding tubes 2.1 and 2.2 and on a slip-10 each have a yarn catching 6.1 and 6.2 and a yarn clamping means 7.1 and 7.2 is arranged. The yarn catching devices 6.1 and 6.2 as well as the thread clamping means 7.1 and 7.2 are in this case, as already described above, formed by a plurality of catch noses and a clamping bush. The clamping bush in the central region of the winding spindle is designed to be hollow-cylindrical throughout.
Die Ausbildung der Klemmschlitze sowie die Funktionsweise ist identisch zu dem vorgenannten Ausführungsbeispiel, so dass an dieser Stelle keine weitere Erläuterung erfolgt. Der erfindungsgemäße Spulenhalter ist somit besonders geeignet, um ein Fadenende zu Beginn einer Spulreise am Umfang der Spulspindel zu fixieren. Somit können glatte und nicht bearbeitete Spulhülsen ohne jegliche Fangkerben eingesetzt werden. The design of the clamping slots and the operation is identical to the aforementioned embodiment, so that no further explanation takes place at this point. The coil holder according to the invention is thus particularly suitable for fixing a thread end at the beginning of a winding cycle on the circumference of the winding spindle. Thus, smooth and unprocessed winding tubes can be used without any catch notches.
Bezugszeichenliste LIST OF REFERENCE NUMBERS
1 Spulspmdel 1 Spulspmdel
2, 2 • 1, 2.2 Spulhülse  2, 2 • 1, 2.2 winding tube
3 Elektromotor  3 electric motor
4 Spulhülse  4 winding tube
5 Anschlag  5 stop
6, 6 • 1, 6.2 Fadenfangeinrichtung  6, 6 • 1, 6.2 Thread catcher
7, 7 • 1, 7.2 Fadenklemmmittel  7, 7 • 1, 7.2 Thread clamp
8 Fangnase  8 catch nose
9 Klemmbuchse  9 clamping bush
10 Aufsteckende  10 infectious
11, 11. 1, 11.2 Außenkonus  11, 11. 1, 11.2 outer cone
12 Klemmschlitz  12 clamping slot
13 Konussegment  13 cone segment
14 Führungsabschnitt  14 guide section
15 Stirnwand  15 front wall
16 Antriebsende  16 drive end
17 Fangnut  17 catching groove

Claims

Patentansprüche 1. Spulenhalter zum Aufwickeln eines Fadens mit einer zum Aufschieben einer Spulhülse (2) auskragenden Spulspindel (1), die an einem freien Aufsteckende (10) eine Fadenfangeinrichtung (6) und ein Fadenklemmmittel (7) aufweist, wobei die Fadenfangeinrichtung (6) durch mehrere axial hervorstehende Fangnasen (8) gebildet ist, die zum Festklemmen des Fadens zu Beginn einer Spulreise mit dem Fadenklemmmittel (7) zusammenwirken, dadurch gekennzeichnet, dass 1. Coil holder for winding a thread with a winding tube for a (2) cantilevered winding spindle (1) having at a free Aufsteckende (10) a thread catcher (6) and a thread clamping means (7), wherein the thread catcher (6) is formed by a plurality of axially projecting catch noses (8), which cooperate for clamping the thread at the beginning of a winding cycle with the thread clamping means (7), characterized in that
das Fadenklemmmittel (7) durch eine hohlzylindrische Klemmbuchse (9) gebildet ist, die mit einem Außenkonus (11) in einen durch die Fangnasen (8) begrenzten Innendurchmesser derart eingepasst ist, dass sich ein im wesentli- chen axial gerichteter und zum Aufsteckende (10) hin offener Klemmschlitz the thread clamping means (7) is formed by a hollow-cylindrical clamping bush (9) which is fitted with an outer cone (11) into an inner diameter delimited by the catching noses (8) in such a way that a substantially axially directed and for the push-on end (10 ) open clamping slot
(12) zwischen der Klemmbuchse (9) und der Fangnase (8) bildet. (12) between the clamping bush (9) and the catch nose (8) forms.
2. Spulenhalter nach Anspruch 1 , 2. bobbin holder according to claim 1,
dadurch gekennzeichnet, dass  characterized in that
die Klemmbuchse (9) einen umlaufenden Außenkonus (11.1) oder mehrere am Umfang verteilt ausgebildete Konussegmente (13) aufweist, so dass jeder Fangnase (8) einer von mehreren Klemmschlitzen (12) zugeordnet ist.  the clamping bush (9) has a peripheral outer cone (11.1) or a plurality of conical segments (13) distributed around the circumference, so that each catch nose (8) is associated with one of a plurality of clamping slots (12).
3. Spulenhalter nach Anspruch 1 oder 2, 3. bobbin holder according to claim 1 or 2,
dadurch gekennzeichnet, dass  characterized in that
der Klemmschlitz (12) zwischen der Klemmbuchse (9) und einer der Fangnasen (8) einen V-förmigen Öffnungsquerschnitt mit einem Öffnungswinkel (α) im Bereich von 1° bis 30° aufweist.  the clamping slot (12) between the clamping bush (9) and one of the catch noses (8) has a V-shaped opening cross section with an opening angle (α) in the range of 1 ° to 30 °.
4. Spulenhalter nach einem der Ansprüche 1 bis 3, 4. bobbin holder according to one of claims 1 to 3,
dadurch gekennzeichnet, dass der Klemmschlitz (12) durch zwei Außenkonen (11.1, 11.2) mit unterschiedlichen Steigungswinkeln an der Klemmbuchse (9) gebildet ist, wobei eine Einlasszone des Klemmschlitzes (12) einen größeren Öffnungswinkel (α2) aufweist als eine Klemmzone des Klemmschlitzes mit einem Öffhungswin- characterized in that the clamping slot (12) is formed by two outer cones (11.1, 11.2) with different pitch angles on the clamping bush (9), wherein an inlet zone of the clamping slot (12) has a larger opening angle (α 2 ) than a clamping zone of the clamping slot with a Öffwungswin
5. Spulenhalter nach einem der Ansprüche 1 bis 4, 5. bobbin holder according to one of claims 1 to 4,
dadurch gekennzeichnet, dass  characterized in that
die Klemmbuchse (9) zum Ende der Fangnasen (8) hin einen zylindrischen Führungsabschnitt (14) aufweist, der sich von unterhalb der Fangnasen (8) bis über die Länge der Fangnasen (8) hinaus erstreckt.  the clamping bush (9) has, towards the end of the catching lugs (8), a cylindrical guide section (14) which extends from below the catching lugs (8) to beyond the length of the catching lugs (8).
6. Spulenhalter nach einem der Ansprüche 1 bis 5, 6. bobbin holder according to one of claims 1 to 5,
dadurch gekennzeichnet, dass  characterized in that
die Spulspindel (1) zur Aufnahme mehrerer Spulhülsen (2.1, 2.2) am Umfang mehrere axial versetzt angeordnete Fadenfangeinrichtungen (6.1, 6.2) und Fadenklemmmittel (7.1, 7.2) aufweist.  the winding spindle (1) for receiving a plurality of winding tubes (2.1, 2.2) on the circumference a plurality of axially offset yarn catching devices (6.1, 6.2) and thread clamping means (7.1, 7.2).
7. Spulenhalter nach einem der Ansprüche 1 bis 6, 7. bobbin holder according to one of claims 1 to 6,
dadurch gekennzeichnet, dass  characterized in that
die Klemmbuchse (9) am Ende der Spulspindel (1) topfförmig ausgebildet und mit einer Stirnwand (15) an der Spulspindel (1) befestigt ist.  the clamping bush (9) at the end of the winding spindle (1) cup-shaped and with an end wall (15) on the winding spindle (1) is fixed.
8. Spulenhalter nach Anspruch 7, 8. bobbin holder according to claim 7,
dadurch gekennzeichnet, dass  characterized in that
der Außenkonus (11) oder die Außenkonen (11.1, 11.2) am offenen Ende der Klemmbuchse (9) ausgebildet ist.  the outer cone (11) or the outer cones (11.1, 11.2) is formed at the open end of the clamping bush (9).
9. Spulenhalter nach einem der Ansprüche 1 bis 8, 9. bobbin holder according to one of claims 1 to 8,
dadurch gekennzeichnet, dass die Spulspindel (1) an dem gegenüberliegendem Antriebsende (16) mit einem Elektromotor (3) verbunden ist. characterized in that the winding spindle (1) is connected at the opposite drive end (16) to an electric motor (3).
EP10727431.8A 2009-07-15 2010-07-01 Bobbin holder Active EP2454180B1 (en)

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JP5802708B2 (en) 2013-07-02 2015-10-28 株式会社フジクラ Optical fiber terminal fixture for winding optical fiber and optical fiber winding method
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JP5661765B2 (en) 2015-01-28
US8336802B2 (en) 2012-12-25
CN102471007B (en) 2013-12-18
DE102009033099A1 (en) 2011-02-03
WO2011006761A1 (en) 2011-01-20
EP2454180B1 (en) 2014-01-15
RU2012105035A (en) 2013-08-20
US20120145819A1 (en) 2012-06-14
CN102471007A (en) 2012-05-23
JP2012532818A (en) 2012-12-20

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