EP0615942A2 - Winding core with binding means for machines for tying packages - Google Patents

Winding core with binding means for machines for tying packages Download PDF

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Publication number
EP0615942A2
EP0615942A2 EP94102262A EP94102262A EP0615942A2 EP 0615942 A2 EP0615942 A2 EP 0615942A2 EP 94102262 A EP94102262 A EP 94102262A EP 94102262 A EP94102262 A EP 94102262A EP 0615942 A2 EP0615942 A2 EP 0615942A2
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EP
European Patent Office
Prior art keywords
strapping
winding core
winding
binding
reflecting surface
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
EP94102262A
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German (de)
French (fr)
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EP0615942A3 (en
EP0615942B1 (en
Inventor
Karl-Hans Schüttler
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Signode Packaging Systems GmbH
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Signode Bernpak GmbH
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Publication date
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Publication of EP0615942A2 publication Critical patent/EP0615942A2/en
Publication of EP0615942A3 publication Critical patent/EP0615942A3/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H63/00—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package
    • B65H63/08—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package responsive to delivery of a measured length of material, completion of winding of a package, or filling of a receptacle
    • B65H63/086—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package responsive to delivery of a measured length of material, completion of winding of a package, or filling of a receptacle responsive to completion of unwinding of a package

Definitions

  • the invention relates to a strapping with a winding core and strapping thereon for machines for strapping packages, wherein the strapping means for marking its initial portion near the winding core is assigned a reflective surface for, in particular photoelectric, scanning.
  • this strapping end notification triggers various machine commands, in particular in that the remainder of the strapping material currently being processed is pulled out of the machine and reversing means are switched on, which effect the automatic feeding of the strapping material from the ready-made strapping roll.
  • DE-OS 24 03 732 describes a reflective coating that is scanned with the aid of an optical-electronic weft sensor in order to automatically change the bobbin after weaving a bobbin.
  • the winding condition at which the bobbin change takes place is not explained in detail.
  • CH-PS 666 471 describes the evaluation of a winding consisting of only a few layers of yarn by means of a reflection signal which apparently penetrates the yarn layers which have become translucent.
  • the result of such monitoring of the winding condition of the yarn package is highly dependent on the translucent property of the package, that is, both on the material of the yarn and on the yarn-specific package winding status. These factors cause the signals to generate very different messages. With many yarns, the signal deshlab will therefore appear too late or so early that the machine switches off when there is still a considerable amount of yarn left in stock, which is now becoming an unusable scrap.
  • the invention is essentially based on the task of consuming the strapping material with optimal benefits in a strapping of the presupposed type, in particular thus making a strapping winding available for machines for strapping packages, which has a particularly economical use of strapping material with maximum operational reliability Strapping guaranteed by the machine using the strapping wrap.
  • the invention solves this problem by the features of claim 1 and is characterized by an assignment of the reflective surface to the winding-near initial section of the strapping means such that when the reflective surface is released by the used strapping device, the initial section still on the winding core has a length that is for a package - Strapping is sufficient.
  • the strapping end identifier should only become effective when a strapping section that is sufficiently long for a further strapping is available, and on the other hand that this section, which is available per se, is no longer used up. This ensures, on the one hand, that a machine malfunction, for example due to a strapping remnant that is no longer sufficient for a package strapping, and on the other hand that only an optimized minimum length of strapping material that is no longer usable remains.
  • the last advantage is particularly advantageous because of possible recycling problems. This is because thermally weldable plastic strap is usually used as the strapping tool.
  • the strapping need not be translucent or translucent to enable the end identifier. It can be used without further strapping, which consists of plastic regenerate, which is usually dark gray or black, in any case opaque.
  • a particularly advantageous further embodiment of the invention provides an adhesive strip as the reflective surface carrier, with which the beginning of the strapping means is also attached to the winding core.
  • the reflective adhesive strip according to the invention thus fulfills an extremely advantageous, new dual purpose.
  • U.S. Patent No. 29 87 267 e.g. only shows the fixation of the yarn end to a yarn spool.
  • the adhesive strip and the end of the yarn that it fixes lie outside the winding in every operating state. Monitoring of the winding condition is not intended and would not be possible at all.
  • strapping ends have always been attached to winding cores by means of self-adhesive labels without integrating them into other tasks or aligning them in any particular way to a remaining strapping length.
  • the reflection surface can also be formed from an application of reflection color that extends at least over a partial region of the jacket of the winding core.
  • This order can consist, for example, of a colored strip extending continuously along the winding core jacket, which ensures with certainty that this reflecting surface is released with the usual safety distance from the actual end of the strapping means (or in relation to the winding core: from the beginning of the strapping means).
  • Another embodiment according to the invention consists of a strapping winding, which is characterized in that the winding core has a translucent window for storage on a mandrel, which has a reflector in projection with the window, the reflector being arranged as a sleeve on the mandrel and out a self-adhesive reflective film can be formed.
  • the translucent window can be formed by a jacket opening in the winding core, which usually consists of cardboard.
  • the strapping means is assigned the photosensitive reflection surface itself not on the winding core, but on the machine-side supporting mandrel for it.
  • the advantage of this embodiment consists essentially in the fact that the mandrel is to be provided with a reflective surface and the strapping means with its winding core only has to be adapted to have a translucent window.
  • a strapping section attached with its beginning to the winding core is itself reflective, in particular treated with a reflection color.
  • the treatment for end-of-strapping detection does not relate directly to the winding core, but rather to the strapping itself, but again to its initial section close to the winding.
  • a winding core is designated by 10 and the winding residue 11 of strapping means 12 still located thereon.
  • the remaining strapping length of this remaining strapping roll 11 is dimensioned such that it could still be sufficient for complete strapping. Then it is guaranteed with certainty that the strapping section, not shown, is guaranteed to have been sufficient for the last previous strapping.
  • a reflection surface 13 in the form of a self-adhesive strip with a reflective surface 14 is applied to the jacket of the winding core 10.
  • the reflecting surface 14 is exposed, and it or the like can be scanned by means of a photocell (15 in FIG. 5). a machine command is executed.
  • the beginning of the strapping means 12 is located approximately in the longitudinal center of the winding core 10. Therefore, the reflective adhesive strip 13 covers an axially central area of the winding core 10, so that the residual stock 11 of strapping means 12 shown in the drawing still remains on the winding core 10 after the end of strapping means detection has become effective.
  • the reflective adhesive strip 13 could of course also extend over the entire axial length of the winding core 10, although it is of course sensible to keep the length of this adhesive strip small for cost reasons.
  • FIG. 2 differs from that of FIG. 1 in principle in that here the adhesive strip 13 with its reflective surface 14 also serves to attach the beginning of the strapping to the winding core 10.
  • the adhesive strip 13 is arranged approximately in the longitudinal center of the winding core 10 to ensure that when the beginning of the strapping is exposed by the strapping winding above it, there is still a sufficient amount of strapping 12 on the winding core 10.
  • FIG. 3 illustrates an application 16 made of reflective paint, which is applied directly to the jacket of the winding core 10.
  • a color strip extending in the axial direction of the winding core 12 is shown.
  • a reflective film 17 is arranged as a sleeve on a mandrel 18 for the winding core 10. So that this reflection surface of the film 17 can be detected by a sensor, the winding core 10 has a translucent window 19 in the form of a jacket opening, which is arranged here in a slit shape and extends over an area in the longitudinal center of the winding core 10. Since a winding core 10 usually consists of cardboard, a simple punching can be carried out here.
  • FIG. 5 shows an arrangement in which the start section 11 of the strapping means 12 close to the winding core itself is provided with a reflective layer 22, for example by coating this strapping end section with a reflection color or dipping it into the winding core 10 before winding.
  • a reflective layer 22 for example by coating this strapping end section with a reflection color or dipping it into the winding core 10 before winding.
  • the reflectors 13 preference is given to a commercially available self-adhesive reflective material, such as that from 3M Deutschland GmbH the product name "Scotchlite Photoelectric Diamond Grade 2000X". This reflective material based on microprisms is characterized in particular by wide-angle reflective properties.
  • the supporting mandrel sleeve 13 in the exemplary embodiment in FIG. 5 could also be made of this material because it is easily bendable and therefore fits the supporting mandrel jacket very well.

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  • Engineering & Computer Science (AREA)
  • Quality & Reliability (AREA)
  • Basic Packing Technique (AREA)
  • Storage Of Web-Like Or Filamentary Materials (AREA)

Abstract

A [lacuna] onto a binding-means roll, with a winding core and with binding means located thereon, for machines for the tying of packages, the binding means being assigned a reflecting surface for especially photoelectric scanning for the purpose of marking its initial portion near the winding core, is characterised by an assignment of the reflecting surface to the initial portion of the binding means near the roll, such that, when the spent binding means exposes the reflecting surface, the initial portion still located on the winding core has a length which is sufficient for tying one package. The invention thus teaches, on the one hand, to activate the binding-means end marking only when there is still a binding-means portion sufficiently long for a further tying operation, and, on the other hand, nevertheless no longer to use up this portion which is available per se. This ensures, on the one hand, that there is no possibility of a machine fault, for example because there is no longer a sufficient residue of binding means for tying a package, and at the same time, on the other hand, that only an optimised minimum length of no longer utilisable binding-means material remains. <IMAGE>

Description

Die Erfindung bezieht sich auf einen Umreifungsmittelwickel mit einem Wickelkern und darauf befindlichem Umreifungsmittel für Maschinen zum Umreifen von Packstücken, wobei dem Umreifungsmittel zur Markierung seines wickelkernnahen Anfangsabschnitts eine Reflektionsfläche zur, insbesondere fotoelektrischen, Abtastung zugeordnet ist.The invention relates to a strapping with a winding core and strapping thereon for machines for strapping packages, wherein the strapping means for marking its initial portion near the winding core is assigned a reflective surface for, in particular photoelectric, scanning.

In der älteren, nicht vorveröffentlichten DE-Patentanmeldung P 41 38 800.3 vom 26. November 1991 ist im Zusammenhang mit einem Verfahren und einer Vorrichtung zur Vermeidung von umreifungsmittelbedingten Betriebsunterbrechungen an Maschinen zum Umreifen von Packstücken ein automatischer, sogenannter "fliegender Umreifungsmittelwechsel" vorgesehen, derart, daß an der Maschine zwei jeweils aus einem Umreifungsmittelwickel mit Wickelkern bestehende Umreifungsmittelvorräte bereitgehalten sind. Während das Umreifungsmittel von dem einen Umreifungsmittelwickel abgezogen und von der Maschine verarbeitet wird, befindet sich der zweite Umreifungsmittelvorrat in Warteposition. Damit beim Aufbrauch des gegenwärtig verarbeiteten Umreifungsmittels automatisch Umreifungsmittel vom wartenden Umreifungsmittelvorrat verarbeitet werden kann, sind den Wickelkernen der Umreifungsmittelwickel jeweils eine mittels Fotozellen abgetastete Reflektionsfläche zugeordnet. Leert sich nun der eine Umreifungsmittelwickel, ändert sich bezüglich der ihm zugeordneten Fotozelle das Reflektionsverhalten, sobald deren Strahl auf die Reflektionsfläche trifft. Beim Verfahren und Gegenstand der genannten Patentanmeldung führt diese Umreifungsmittelendemeldung zur Auslösung verschiedener Maschinenbefehle insbesondere dahingehend, daß der Rest des augenblicklich verarbeiteten Umreifungsmittels aus der Maschine herausgezogen wird und Umsteuermittel geschaltet werden, die die automatische Umreifungsmittel-Zuführung vom bereitgehaltenen Umreifungsmittelwickel bewirken.In the older, not prepublished DE patent application P 41 38 800.3 dated November 26, 1991, in connection with a method and a device for avoiding operational interruptions due to strapping means on machines for strapping packages, an automatic, so-called "flying strap changing" is provided, such that that two existing strapping agent stocks, each consisting of a strapping roll with a winding core, are kept on the machine. While the strapping is being pulled from the one strap and processed by the machine, the second stock is in the waiting position. So that when the currently processed strapping agent is used up, the waiting strapping agent supply can automatically process strapping agents, the winding cores of the strapping agent coils are each assigned a reflection surface scanned by means of photocells. If one of the straps is emptied, the reflection behavior changes with regard to the photocell assigned to it. as soon as its beam hits the reflection surface. In the method and subject matter of the patent application mentioned, this strapping end notification triggers various machine commands, in particular in that the remainder of the strapping material currently being processed is pulled out of the machine and reversing means are switched on, which effect the automatic feeding of the strapping material from the ready-made strapping roll.

Ähnliche Einrichtungen sind zu vergleichbaren Zwecken auf dem gattungsfremden Gebiet von Garnspulhülsen bekannt. So beschreibt etwa die DE-OS 24 03 732 einen Reflexbelag, der mit Hilfe eines optisch-elektronischen Schußfühlers abgetastet wird, um nach dem Abweben einer Spule einen automatischen Spulenwechsel herbeizuführen. Bei welchem Bewicklungszustand der Spulenwechsel erfolgt, ist nicht näher erläutert. Die CH-PS 666 471 beschreibt die Auswertung einer nur noch aus wenigen Garnlagen bestehenden Bewicklung mittels eines Reflexionssignals, welches offenbar die durchscheinend gewordenen Garnlagen durchdringt. Das Ergebnis einer solchen Überwachung des Bewicklungszustands der Garnspule ist stark von der transluzenten Eigenschaft des Wickels abhängig, also sowohl vom Material des Garns als auch von dem garnspezifischen Spulen-Bewicklungszustand. Diese Faktoren führen dazu, daß die Signale sehr unterschiedliche Meldungen erzeugen. Bei vielen Garnen wird deshalb das Signal deshlab zu spät oder derart früh erscheinen, daß die Maschine bereits abschaltet, wenn noch eine beträchtliche Garnrestmenge bevorratet ist, die nun zu unverwertbarem Ausschuß wird.Similar devices are known for comparable purposes in the non-generic field of bobbin tubes. For example, DE-OS 24 03 732 describes a reflective coating that is scanned with the aid of an optical-electronic weft sensor in order to automatically change the bobbin after weaving a bobbin. The winding condition at which the bobbin change takes place is not explained in detail. CH-PS 666 471 describes the evaluation of a winding consisting of only a few layers of yarn by means of a reflection signal which apparently penetrates the yarn layers which have become translucent. The result of such monitoring of the winding condition of the yarn package is highly dependent on the translucent property of the package, that is, both on the material of the yarn and on the yarn-specific package winding status. These factors cause the signals to generate very different messages. With many yarns, the signal deshlab will therefore appear too late or so early that the machine switches off when there is still a considerable amount of yarn left in stock, which is now becoming an unusable scrap.

Hiervon ausgehend liegt der Erfindung im wesentlichen die Aufgabe zugrunde, bei einem Umreifungsmittelwickel der vorausgesetzten Art das Umreifungsmittel mit optimalem Nutzen zu verbrauchen, insbesondere also einen Umreifungsmittelwickel für Maschinen zum Umreifen von Packstücken, verfügbar zu machen, der einen besonders sparsamen Umreifungsmittelverbrauch bei maximaler Betriebssicherheit der das Umreifungsmittel vom Umreifungsmittelwickel verbrauchenden Maschine garantiert.Proceeding from this, the invention is essentially based on the task of consuming the strapping material with optimal benefits in a strapping of the presupposed type, in particular thus making a strapping winding available for machines for strapping packages, which has a particularly economical use of strapping material with maximum operational reliability Strapping guaranteed by the machine using the strapping wrap.

Die Erfindung löst diese Aufgabe durch die Merkmale des Patentanspruchs 1 und ist gekennzeichnet durch eine Zuordnung der Reflektionsfläche zum wickelnahen Anfangsabschnitt des Umreifungsmittels derart, daß bei Freikommen der Reflektionsfläche durch das verbrauchte Umreifungsmittel der noch auf dem Wickelkern befindliche Anfangsabschnitt eine Länge aufweist, die für eine Packstück-Umreifung ausreicht.The invention solves this problem by the features of claim 1 and is characterized by an assignment of the reflective surface to the winding-near initial section of the strapping means such that when the reflective surface is released by the used strapping device, the initial section still on the winding core has a length that is for a package - Strapping is sufficient.

Die Erfindung lehrt somit einmal, die Umreifungsmittelende-Kennung dann und erst dann wirksam werden zu lassen, wenn noch ein für eine weitere Umreifung hinreichend langer Umreifungsmittelabschnitt vorhanden ist, und zum anderen, diesen an sich verfügbaren Abschnitt jedoch nicht mehr aufzubrauchen. Damit ist nämlich einerseits sichergestellt, daß eine Maschinenstörung etwa wegen eines für eine Packstück-Umreifung nicht mehr hinreichenden Umreifungsmittelrestes ausgeschlossen ist und zugleich andererseits, daß lediglich eine optimierte Minimallänge nicht mehr verwertbaren Umreifungsmittelmaterials übrigbleibt. Abgesehen vom Kostenaspekt ist letzter Vorteil vor allem wegen eventueller Recyclingprobleme von besonderem Vorteil. Als Umreifungsmittel wird nämlich meist thermisch verschweißbares Kunststoffband verwendet.The invention thus once teaches that the strapping end identifier should only become effective when a strapping section that is sufficiently long for a further strapping is available, and on the other hand that this section, which is available per se, is no longer used up. This ensures, on the one hand, that a machine malfunction, for example due to a strapping remnant that is no longer sufficient for a package strapping, and on the other hand that only an optimized minimum length of strapping material that is no longer usable remains. Apart from In terms of costs, the last advantage is particularly advantageous because of possible recycling problems. This is because thermally weldable plastic strap is usually used as the strapping tool.

Ein weiterer, aus der Erfindung resultierender Vorteil besteht darin, daß das Umreifungsmittel nicht durchsichtig oder durchscheinend zu sein braucht, um die Endekennung zu ermöglichen. Damit kann ohne weiteres Umreifungsmittel verwendet werden, das aus Kunststoffregenerat besteht, welches in der Regel dunkelgrau oder schwarz, jedenfalls lichtundurchlässig ist.Another advantage resulting from the invention is that the strapping need not be translucent or translucent to enable the end identifier. It can be used without further strapping, which consists of plastic regenerate, which is usually dark gray or black, in any case opaque.

Eine besonders vorteilhafte weitere Ausgestaltung der Erfindung sieht als Reflektionsflächenträger einen Klebestreifen vor, mit dem zugleich der Anfang des Umreifungsmittels am Wickelkern angeheftet ist. Damit erfüllt der reflektierende Klebestreifen entsprechend der Erfindung einen äußerst vorteilhaften, neuen Doppelzweck. Die US-PS 29 87 267 z.B. zeigt diesbezüglich lediglich die Fixierung des Garnendes an einer Garnspule. Der Klebestreifen und das von ihm fixierte Ende des Garns liegen in jedem Betriebszustand außerhalb des Wickels. Eine Überwachung des Bewicklungszustandes ist nicht vorgesehen und wäre auch gar nicht möglich.A particularly advantageous further embodiment of the invention provides an adhesive strip as the reflective surface carrier, with which the beginning of the strapping means is also attached to the winding core. The reflective adhesive strip according to the invention thus fulfills an extremely advantageous, new dual purpose. U.S. Patent No. 29 87 267 e.g. only shows the fixation of the yarn end to a yarn spool. The adhesive strip and the end of the yarn that it fixes lie outside the winding in every operating state. Monitoring of the winding condition is not intended and would not be possible at all.

Im übrigen heftet man schon immer auch Umreifungsmittelenden an Wickelkerne mittels Selbstklebeetiketten an, ohne diese in andere Aufgaben einzubinden oder in irgendeiner bestimmten Weise auf eine Umreifungsmittelrestlänge auszurichten. Hingegen ist es nach der erfindungsgemäßen Lehre selbstverständlich, daß das Umreifungsmittelende so auf dem Wickelkern aufgebracht und sein Ende an einer solchen Stelle befestigt ist, daß sichergestellt ist, daß die Umreifungsmittelendekennung rechtzeitig, also vor Aufbrauch des letzten, für eine vollständige Umreifung nicht mehr ausreichenden Umreifungsmittelrestes möglich wird.In addition, strapping ends have always been attached to winding cores by means of self-adhesive labels without integrating them into other tasks or aligning them in any particular way to a remaining strapping length. On the other hand, according to the teaching of the invention, it goes without saying that the strapping end so applied to the winding core and its end fixed at such a place that it is ensured that the end of strapping detection is possible in time, ie before the last strapping remnant is no longer sufficient for complete strapping.

Die Reflektionsfläche kann auch aus einem sich mindestens über einen Teilbereich des Mantels des Wickelkerns erstreckenden Auftrag aus Reflektionsfarbe gebildet sein. Dieser Auftrag kann beispielsweise aus einem sich längs des Wickelkernmantels durchgehend erstreckenden Farbstreifen bestehen, durch den mit Sicherheit gewährleistet ist, daß diese Reflektionsfläche mit dem üblichen Sicherheitsabstand vom eigentlichen Umreifungsmittelende (bzw. auf den Wickelkern bezogen: vom Umreifungsmittelanfang) freigegeben wird.The reflection surface can also be formed from an application of reflection color that extends at least over a partial region of the jacket of the winding core. This order can consist, for example, of a colored strip extending continuously along the winding core jacket, which ensures with certainty that this reflecting surface is released with the usual safety distance from the actual end of the strapping means (or in relation to the winding core: from the beginning of the strapping means).

Eine weitere Ausführungsform entsprechend der Erfindung besteht aus einem Umreifungsmittelwickel, der dadurch gekennzeichnet ist, daß der Wickelkern ein lichtdurchlässiges Fenster aufweist zur Lagerung auf einem Tragdorn, der in Projektion mit dem Fenster einen Reflektor aufweist, wobei der Reflektor als Manschette auf dem Tragdorn angeordnet und aus einer selbstklebenden Reflektionsfolie gebildet sein kann. Das lichtdurchlässige Fenster kann im einfachsten Fall von einem Manteldurchbruch des Wickelkern gebildet sein, der üblicherweise aus Pappe besteht. Bei dieser Anordnung ist dem Umreifungsmittel die fotosensorische Reflektionsfläche selbst nicht auf dem Wickelkern, sondern an dem maschinenseitigen Tragdorn für diesen zugeordnet. Der Vorteil dieser Ausgestaltung besteht im wesentlichen darin, daß der Tragdorn einmal mit einer Reflektionsfläche zu versehen ist und der Umreifungsmittelwickel mit seinem Wickelkern lediglich daran angepaßt ein lichtdurchlässiges Fenster aufzuweisen hat.Another embodiment according to the invention consists of a strapping winding, which is characterized in that the winding core has a translucent window for storage on a mandrel, which has a reflector in projection with the window, the reflector being arranged as a sleeve on the mandrel and out a self-adhesive reflective film can be formed. In the simplest case, the translucent window can be formed by a jacket opening in the winding core, which usually consists of cardboard. In this arrangement, the strapping means is assigned the photosensitive reflection surface itself not on the winding core, but on the machine-side supporting mandrel for it. The The advantage of this embodiment consists essentially in the fact that the mandrel is to be provided with a reflective surface and the strapping means with its winding core only has to be adapted to have a translucent window.

Eine weitere Möglichkeit im Rahmen der Erfindung, das Umreifungsmittelende erkennen zu können, besteht schließlich noch darin, daß ein mit seinem Anfang am Wickelkern befestigter Umreifungsmittelabschnitt selbst reflektierend ist, insbesondere mit einer Reflektionsfarbe behandelt ist. In diesem Fall bezieht sich die Behandlung zur Umreifungsmittelendeerkennung nicht unmittelbar auf den Wickelkern, sondern auf das Umreifungsmittel selbst, allerdings wiederum auf dessen wickelnahen Anfangsabschnitt.Another possibility within the scope of the invention to be able to recognize the end of the strapping means finally consists in that a strapping section attached with its beginning to the winding core is itself reflective, in particular treated with a reflection color. In this case, the treatment for end-of-strapping detection does not relate directly to the winding core, but rather to the strapping itself, but again to its initial section close to the winding.

Die Erfindung wird nachfolgend anhand einiger in den Zeichnungen dargestellter Ausführungsbeispiele noch im einzelnen erläutert. In den Zeichnungen zeigen, jeweils in einem schematischen Schaubild:

Fig. 1
einen Wickelkern mit darauf befindlichem Restvorrat an Umreifungsmittel und einem auf den Wickelkern aufgebrachten Klebestreifen mit reflektierender Außenfläche,
Fig. 2
eine der Fig. 1 ähnliche Anordnung, wobei jedoch der Klebestreifen gleichzeitig zur Fixierung des Umreifungsmittelanfangs am Wickelkern dient,
Fig. 3
eine Anordnung mit einem auf den Wickelkern aufgebrachten Auftrag auf Reflektionsfarbe,
Fig. 4
eine Anordnung mit einem lichtdurchlässigen Fenster im Wickelkern und einer Reflektionsmanschette auf dem den Wickelkern tragenden Dorn sowie
Fig. 5
eine Anordnung mit einem mit Reflektionsfarbe versehenen Umreifungsmittel-Anfangsabschnitt.
The invention is explained in more detail below with reference to some exemplary embodiments shown in the drawings. The drawings show, in each case in a schematic diagram:
Fig. 1
a winding core with a remaining supply of strapping material thereon and an adhesive strip applied to the winding core with a reflective outer surface,
Fig. 2
an arrangement similar to FIG. 1, but with the adhesive strip simultaneously serving to fix the beginning of the strapping to the winding core,
Fig. 3
an arrangement with an application to the winding core on reflective paint,
Fig. 4
an arrangement with a translucent window in the winding core and a reflective sleeve on the mandrel carrying the winding core and
Fig. 5
an arrangement with a strapping beginning section provided with reflective color.

In allen Figuren ist ein Wickelkern mit 10 und der darauf noch befindliche Wickelrest 11 an Umreifungsmittel 12 bezeichnet. Die Restumreifungsmittellänge dieses restlichen Umreifungsmittelwickels 11 ist so bemessen, daß er noch für eine vollständige Umreifung ausreichen könnte. Dann wird mit Sicherheit gewährleistet, daß der nicht dargestellte Umreifungsmittelabschnitt für die letzte voraufgegangene Umreifung garantiert ausgereicht hat.In all the figures, a winding core is designated by 10 and the winding residue 11 of strapping means 12 still located thereon. The remaining strapping length of this remaining strapping roll 11 is dimensioned such that it could still be sufficient for complete strapping. Then it is guaranteed with certainty that the strapping section, not shown, is guaranteed to have been sufficient for the last previous strapping.

Bei der Anordnung nach Fig. 1 ist eine Reflektionsfläche 13 in Form eines Selbstklebestreifens mit reflektierender Oberfläche 14 auf den Mantel des Wickelkerns 10 aufgebracht. Durch Abziehen des Umreifungsmittels 12 vom Wickelkern 10 wird die reflektierende Oberfläche 14 freigelegt, und es kann durch Abtastung mittels einer Fotozelle (15 in Fig. 5) od.dgl. ein Maschinenbefehl ausgeführt werden. Der Anfang des Umreifungsmittels 12 befindet sich hier etwa in der Längsmitte des Wickelkerns 10. Deshalb überdeckt der reflektierende Klebestreifen 13 einen axial mittleren Bereich des Wickelkerns 10, so daß der aus der Zeichnung ersichtliche Restvorrat 11 an Umreifungsmittel 12 noch auf dem Wickelkern 10 verbleibt, nachdem die Umreifungsmittelendeerkennung wirksam geworden ist. Auch bei Befestigung des Umreifungsmittelanfangs an einem Stirnende des Wickelkerns 10 würde man entsprechend den reflektierenden Klebestreifen 13 in der Längsmitte des Wickelkerns 10 anordnen können. Unabhängig vom Anbringungsort des Anfangs des Umreifungsmittels 11 könnte sich der reflektierende Klebestreifen 13 selbstverständlich auch über die gesamte axiale Länge des Wickelkerns 10 erstrecken, wenngleich es natürlich sinnvoll ist, die Länge dieses Klebestreifens schon aus Kostengründen gering zu halten.In the arrangement according to FIG. 1, a reflection surface 13 in the form of a self-adhesive strip with a reflective surface 14 is applied to the jacket of the winding core 10. By pulling off the strapping means 12 from the winding core 10, the reflecting surface 14 is exposed, and it or the like can be scanned by means of a photocell (15 in FIG. 5). a machine command is executed. The beginning of the strapping means 12 is located approximately in the longitudinal center of the winding core 10. Therefore, the reflective adhesive strip 13 covers an axially central area of the winding core 10, so that the residual stock 11 of strapping means 12 shown in the drawing still remains on the winding core 10 after the end of strapping means detection has become effective. Even if the beginning of the strapping agent were attached to an end face of the winding core 10, one could be able to arrange the reflecting adhesive strips 13 in the longitudinal center of the winding core 10 in accordance with the reflective adhesive strips. Regardless of the location of the beginning of the strapping 11, the reflective adhesive strip 13 could of course also extend over the entire axial length of the winding core 10, although it is of course sensible to keep the length of this adhesive strip small for cost reasons.

Die Ausführung nach Fig. 2 unterscheidet sich von der nach Fig. 1 im Prinzip dadurch, daß hier der Klebestreifen 13 mit seiner reflektierenden Oberfläche 14 zugleich dazu dient, den Umreifungsmittelanfang an den Wickelkern 10 anzuheften. Hier ist der Klebestreifen 13 etwa in der Längsmitte des Wickelkerns 10 angeordnet, um sicherzustellen, daß, wenn der Umreifungsmittelanfang von der darüber liegenden Umreifungsmittelwicklung freigelegt wird, sich noch hinreichend viel Umreifungsmittel 12 auf dem Wickelkern 10 befindet.The embodiment of FIG. 2 differs from that of FIG. 1 in principle in that here the adhesive strip 13 with its reflective surface 14 also serves to attach the beginning of the strapping to the winding core 10. Here, the adhesive strip 13 is arranged approximately in the longitudinal center of the winding core 10 to ensure that when the beginning of the strapping is exposed by the strapping winding above it, there is still a sufficient amount of strapping 12 on the winding core 10.

Fig. 3 veranschaulicht einen Auftrag 16 aus Reflektionsfarbe, der direkt auf den Mantel des Wickelkerns 10 aufgetragen ist. In der Darstellung ist ein sich in Axialrichtung des Wickelkerns 12 erstreckender Farbstreifen dargestellt. Selbstverständlich könnte man auch den Bereich des Farbauftrags ähnlich anordnen wie die Klebestreifen 13 nach Fig. 1 oder 2 oder den Mantel des Wickelkerns 10 vollständig mit Reflektionsfarbe versehen.3 illustrates an application 16 made of reflective paint, which is applied directly to the jacket of the winding core 10. In the illustration, a color strip extending in the axial direction of the winding core 12 is shown. Of course, you could also arrange the area of the paint application similar to 1 or 2 or the jacket of the winding core 10 completely provided with reflection paint.

In Fig. 4 ist eine Reflektionsfolie 17 als Manschette auf einen Tragdorn 18 für den Wickelkern 10 angeordnet. Damit diese Reflektionsfläche der Folie 17 von einem Sensor erfaßt werden kann, weist der Wickelkern 10 ein lichtdurchlässiges Fenster 19 in Gestalt eines Manteldurchbruchs auf, der hier schlitzförmig angeordnet ist und sich über einen Bereich in der Längsmitte des Wickelkerns 10 erstreckt. Da ein Wickelkern 10 üblicherweise aus Pappe besteht, kann hier eine einfache Durchstanzung vorgenommen werden.In Fig. 4, a reflective film 17 is arranged as a sleeve on a mandrel 18 for the winding core 10. So that this reflection surface of the film 17 can be detected by a sensor, the winding core 10 has a translucent window 19 in the form of a jacket opening, which is arranged here in a slit shape and extends over an area in the longitudinal center of the winding core 10. Since a winding core 10 usually consists of cardboard, a simple punching can be carried out here.

Fig. 5 zeigt schließlich eine Anordnung, bei der der wickelkernnahe Anfangsabschnitt 11 des Umreifungsmittels 12 selbst mit einer Reflektionsschicht 22 versehen ist, indem man beispielsweise diesen Umreifungsmittelendabschnitt vor dem Aufspulen auf den Wickelkern 10 mit einer Reflektionsfarbe bestreicht oder in sie eintaucht. Bei dieser Ausführung ist es völlig gleichgültig, an welcher Stelle des Wickelkerns der Umreifungsmittelanfang an diesem befestigt ist, weil der gesamte Umreifungsmittel-Anfangsabschnitt in der notwendigen Länge mit Reflektionsfarbe 22 versehen ist und unmittelbar zur Abtastung durch die Fotozelle 15 herangezogen wird.Finally, FIG. 5 shows an arrangement in which the start section 11 of the strapping means 12 close to the winding core itself is provided with a reflective layer 22, for example by coating this strapping end section with a reflection color or dipping it into the winding core 10 before winding. In this embodiment, it is completely irrelevant at which point of the winding core the strapping start is attached to it, because the entire strapping beginning section is provided with the required length with reflection color 22 and is used directly for scanning by the photocell 15.

Für die Reflektoren 13 kommt bevorzugt ein handelsüblicher selbstklebender Reflexstoff in Betracht, wie er beispielsweise von der 3M Deutschland GmbH unter der Produktbezeichnung "Scotchlite Photoelectric Diamond Grade 2000X" vertrieben wird. Dieser Reflexstoff auf Mikroprismenbasis zeichnet sich insbesondere durch weitwinklige Rückstrahleigenschaften aus. Auch die Tragdorn-Manschette 13 beim Ausführungsbeispiel der Fig. 5 könnte aus diesem Material bestehen, weil es gut biegbar ist und sich dem Tragdornmantel daher bestens anschmiegt.For the reflectors 13, preference is given to a commercially available self-adhesive reflective material, such as that from 3M Deutschland GmbH the product name "Scotchlite Photoelectric Diamond Grade 2000X". This reflective material based on microprisms is characterized in particular by wide-angle reflective properties. The supporting mandrel sleeve 13 in the exemplary embodiment in FIG. 5 could also be made of this material because it is easily bendable and therefore fits the supporting mandrel jacket very well.

Claims (10)

Umreifungsmittelwickel mit einem Wickelkern und darauf befindlichem Umreifungsmittel für Maschinen zum Umreifen von Packstücken, wobei dem Wickelkern zur Feststellung eines Restbestands an Umreifungsmittel eine, insbesondere fotoelektrisch, abtastbare Reflektionsfläche zugeordnet ist, gekennzeichnet durch eine Zuordnung der Reflektionsfläche (13) zum wickelnahen Anfangsabschnitt des Umreifungsmittels (12) derart, daß bei Freikommen der Reflektionsfläche durch das verbrauchte Umreifungsmittel der noch auf dem Wickelkern (10) befindliche Anfangsabschnitt (11) eine Länge aufweist, die für eine Packstück-Umreifung ausreicht.Strapping means winding with a winding core and strapping means thereon for machines for strapping packages, wherein the winding core is assigned a, in particular photoelectrically, reflective surface which can be scanned to determine a remaining stock of strapping means, characterized by an assignment of the reflecting surface (13) to the initial portion of the strapping means (12) close to the winding ) in such a way that when the reflection surface is released by the used strapping means, the initial section (11) still on the winding core (10) has a length sufficient for strapping the package. Umreifungsmittelwickel nach Anspruch 1, dadurch gekennzeichnet, daß die Reflektionsfläche (13) auf der Außenseite eines auf den Wickelkern (10) aufgebrachten Klebestreifens vorgesehen ist.Strapping tape according to claim 1, characterized in that the reflecting surface (13) is provided on the outside of an adhesive strip applied to the winding core (10). Umreifungsmittelwickel nach Anspruch 2, dadurch gekennzeichnet, daß mittels des Klebestreifens zugleich der Anfang des Umreifungsmittels (12) an den Wickelkern (10) angeheftet ist.Strapping wrap according to claim 2, characterized in that by means of the adhesive strip at the same time the beginning of the strapping means (12) is attached to the winding core (10). Umreifungsmittelwickel nach Anspruch 1 oder 2, daß der Klebestreifen aus einem Kürzungsabschnitt eines selbstklebenden Reflektorbandes besteht.Strapping wrap according to claim 1 or 2, that the adhesive strip consists of a shortening section of a self-adhesive reflector tape. Umreifungsmittelwickel nach Anspruch 1, dadurch gekennzeichnet, daß die Reflektionsfläche (13) aus einem sich mindestens über einen Teilbereich des Mantels des Wickelkerns (10) erstreckenden Auftrag (16) aus Reflektionsfarbe gebildet ist.Strapping coil according to claim 1, characterized in that the reflecting surface (13) consists of at least a partial area of the Sheath of the winding core (10) extending order (16) is formed from reflection paint. Umreifungsmittelwickel nach Anspruch 1, dadurch gekennzeichnet, daß der Wickelkern (10) ein lichtdurchlässiges Fenster (19) aufweist zur Lagerung auf einem Tragdorn (18), der in Projektion mit dem Fenster (19) einen Reflektor (13) aufweist.Strapping means winding according to claim 1, characterized in that the winding core (10) has a translucent window (19) for storage on a supporting mandrel (18) which has a reflector (13) in projection with the window (19). Umreifungsmittelwickel nach Anspruch 6, dadurch gekennzeichnet, daß der Reflektor (13) als Manschette auf dem Tragdorn (18) angeordnet ist.Strapping means roll according to claim 6, characterized in that the reflector (13) is arranged as a sleeve on the supporting mandrel (18). Umreifungsmittelwickel nach Anspruch 6 oder 7, dadurch gekennzeichnet, daß der Reflektor (13) aus einer selbstklebenden Reflektionsfolie gebildet ist.Strapping tape according to claim 6 or 7, characterized in that the reflector (13) is formed from a self-adhesive reflective film. Umreifungsmittelwickel nach Anspruch 6, dadurch gekennzeichnet, daß das lichtdurchlässige Fenster (19) des Wickelkerns (10) von einem Kernmanteldurchbruch gebildet ist.Strapping roll according to claim 6, characterized in that the translucent window (19) of the winding core (10) is formed by a core jacket opening. Umreifungsmittelwickel nach Anspruch 1, dadurch gekennzeichnet, daß ein mit seinem Anfang am Wickelkern (10) befestigter Umreifungsmittelabschnitt (11) selbst reflektierend ist, insbesondere mit einer Reflektionsfarbe behandelt ist.Strapping wrap according to claim 1, characterized in that a strapping section (11) attached to the winding core (10) with its beginning is itself reflective, in particular is treated with a reflection paint.
EP94102262A 1993-03-16 1994-02-15 Winding core with binding means for machines for tying packages Expired - Lifetime EP0615942B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4308288A DE4308288C1 (en) 1993-03-16 1993-03-16 Winding core for strapping material for strapping packages
DE4308288 1993-03-16

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EP0615942A2 true EP0615942A2 (en) 1994-09-21
EP0615942A3 EP0615942A3 (en) 1995-11-08
EP0615942B1 EP0615942B1 (en) 1997-04-02

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EP94102262A Expired - Lifetime EP0615942B1 (en) 1993-03-16 1994-02-15 Winding core with binding means for machines for tying packages

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EP (1) EP0615942B1 (en)
AT (1) ATE151052T1 (en)
DE (2) DE4308288C1 (en)
ES (1) ES2100586T3 (en)

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DE10246075A1 (en) * 2002-10-02 2004-04-22 Heidelberger Druckmaschinen Ag Wire spool and residual wire detection method
WO2007008346A1 (en) * 2005-07-13 2007-01-18 Sonoco Development, Inc. Laser-cleanable winding cores and cleaning method therefor
CN101341087B (en) * 2005-11-30 2013-04-03 路纳通工业电子有限公司 Bobbin and device for identifying properties of winding material

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DE10246075A1 (en) * 2002-10-02 2004-04-22 Heidelberger Druckmaschinen Ag Wire spool and residual wire detection method
WO2007008346A1 (en) * 2005-07-13 2007-01-18 Sonoco Development, Inc. Laser-cleanable winding cores and cleaning method therefor
CN101341087B (en) * 2005-11-30 2013-04-03 路纳通工业电子有限公司 Bobbin and device for identifying properties of winding material

Also Published As

Publication number Publication date
ATE151052T1 (en) 1997-04-15
EP0615942A3 (en) 1995-11-08
EP0615942B1 (en) 1997-04-02
ES2100586T3 (en) 1997-06-16
DE4308288C1 (en) 1994-09-29
DE59402266D1 (en) 1997-05-07

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