EP1922253A1 - Banding a stack of products which are to be stacked - Google Patents

Banding a stack of products which are to be stacked

Info

Publication number
EP1922253A1
EP1922253A1 EP06761296A EP06761296A EP1922253A1 EP 1922253 A1 EP1922253 A1 EP 1922253A1 EP 06761296 A EP06761296 A EP 06761296A EP 06761296 A EP06761296 A EP 06761296A EP 1922253 A1 EP1922253 A1 EP 1922253A1
Authority
EP
European Patent Office
Prior art keywords
band
tape
roll
stack
loop
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
EP06761296A
Other languages
German (de)
French (fr)
Other versions
EP1922253B1 (en
Inventor
Martin Zimmerli
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.)
ATS-TANNER BANDING SYSTEMS AG
Original Assignee
ATS Automatic Taping Systems AG
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 ATS Automatic Taping Systems AG filed Critical ATS Automatic Taping Systems AG
Publication of EP1922253A1 publication Critical patent/EP1922253A1/en
Application granted granted Critical
Publication of EP1922253B1 publication Critical patent/EP1922253B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B13/00—Bundling articles
    • B65B13/18—Details of, or auxiliary devices used in, bundling machines or bundling tools
    • B65B13/184—Strap accumulators
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B13/00—Bundling articles
    • B65B13/18—Details of, or auxiliary devices used in, bundling machines or bundling tools

Definitions

  • the invention relates to a method and a device for banding a stack of packaged goods, wherein unrolled from a roll with a tape storage a banding a band, formed by means of a Bandein- schub- / Band Wegzugatti a loop for the Packgutstapel, after clamping the free Banderolenendes in pulled a return to the stack of goods, the free end glued or welded and the tightened loop is cut off.
  • a band-shaped film made of paper, plastic or a composite material is guided in a loop forming the outer boundary as a loop around the stack of packaged goods.
  • This tape guide is designed as an open or closed slip sheet, depending on the rigidity of the bands, the dimensions and the use of the banded stack.
  • soft banderols numerous means are known for holding the band during and after the sheet pass, but a free retraction for putting on the banderols must always be guaranteed.
  • the packaged goods to be banded can be of any desired design, for example square, rectangular, round or trapezoidal with respect to the base area. At least one banderole is applied, with several banderoles simultaneously or successively.
  • a fully automatic banding machine initially forms a stable or upheld loop in which the Packgutstapel is placed.
  • the loading of the packaged goods can also be done before looping.
  • the band clamped at its free end is retracted until It rests more or less rich according to the properties of the packaged goods.
  • the clamped end is glued or welded to the tightened band and the loop is cut off.
  • the basic principle of banding is widely known.
  • EP 0551244 A1 a banding machine is described, which comprises a capping. This guarantees a clean closure, requires less maintenance, prevents deposits of foil firing and the replacement of heating elements.
  • the inventor's task is to provide a method and a device of the type mentioned, which ensure a continuous operation and temporal flexibility of the supervisor.
  • the object is achieved in that detected in a program-controlled, continuous process before a band change a banding the end of the band of a first roll of tape, the rest of the banderole withdrawn, threaded into the tape storage a second full roll of tape in the tape slot - / belt retraction unit pushed and the banding is continued without delay.
  • the tape end control is preferably sensor-controlled.
  • the tape retraction is done so far, that the prepared insertion of the band from the second role of the banding machine can take place unhindered.
  • the tape change is fully automatic in seconds, the production can be continued without interruption and unhindered.
  • the band change is visually and / or acoustically displayed.
  • the supervisor has enough time to replace the used role and thread the band in the tape storage so that the working role can be replaced automatically at any time again.
  • the rest can be withdrawn immediately.
  • at least one loop is formed with the remainder of the band and then the residual band is withdrawn.
  • the number of loops still formed depends on the length of the band from the Bandendkontrolle to the welding and cutting unit and the circumference of the stack of packaged goods, from which the program control of the banding machine calculates the remaining number of loops up to the band retraction and controls. Usually these are one to two loops.
  • a sensor of a position measuring system switches on with a precisely rotating encoder roller.
  • the displacement measuring system measures a predetermined strip length, which must be shot in the slip-sheet of the banding machine.
  • the specification is optimal if, to form the first loop after the band change, a unique special length x of the band is added, which corresponds to the distance of the sensor of the position measuring system to the welding and cutting unit. This prevents the first loop of the band around the stack of packagings from being too short because, in contrast to the subsequent loop formations of the reference photocell for the band insertion for the welding and cutting unit, there is no band material.
  • the object is achieved according to the invention in that it comprises a program-controlled operable first and a second band roll, each with a band memory, wherein a band channel adjoins each of the two band storages which is V-shaped or radius-shaped in the direction of a common band Run together leadership pair, has means for tape feed to the drive roller of the tape feed / tape retracting unit and tape retraction in the respective band channel.
  • Special and further embodiments of the banding machine are the subject of dependent claims.
  • a sensor for detecting the Banderolenendes is attached.
  • this sensor is positioned so that the length of the band from this sensor to the welding and cutting unit is greater than the loop to be formed around a packaged goods stack of the largest possible extent.
  • the banderole wound up on the relevant roll is maximally utilized, leaving only a small, withdrawable instep.
  • the band channels are expediently designed as a double-sided sliding or roller track, with drive rollers or belt guide.
  • the banderole clamping drive rollers of a roller conveyor or belt of a belt guide are at the same time means for advancing or retraction of the band.
  • a sensor is arranged which triggers the end of the band retraction and is therefore also called band control.
  • FIG. 1 is a view of a banding machine with two coaxially arranged behind one another tape rolls
  • - Fig. 3 a band channel with a sliding guide.
  • Fig. 1 shows a banding machine 10 with a height-adjustable chassis 12 on lockable wheels 14.
  • a rear, non-visible tape roll 18 and a coaxial front banderole 20 is arranged on a cross member 16 of the chassis 12.
  • a rear, non-visible tape roll 18 and a coaxial front banderole 20 is arranged on a cross member 16 of the chassis 12.
  • the band stores 24, 25 each comprise three fixed deflecting rollers 26 and three deflecting rollers 30 mounted on a tensioned, pivotable lever 28.
  • the band accumulators 24, 25 serve as a reserve, the lever 28 being raised.
  • the tape storage can also be designed as a magazine.
  • the tape roll 20 with the tape storage 24 is in working position, the invisible tape roll 18 with a corresponding, also not visible tape storage 24 is in reserve position.
  • Each of these two displaceable tape rollers 18, 22 with tape storage 24, 25 comprises not shown controllable means for tape feed / tape retraction, analogous to FIG. 2.
  • the band 22 is pulled into a band channel 32, which is arranged in a machine housing 34 with a folding table 36.
  • machine housing 34 further hidden machine elements are arranged, for example, a capstan 38 of a tape insertion / tape retracting unit 39, wherein at a corresponding Position of a lever 40, the band 22 to the capstan 38 pressing or this freewheel granting the transport roller 42, with the band 22 exactly revolving encoder roller 44, a hold-down plate 46, a welding and cutting unit 48, and one with the drive of the belt drive roller 38th and the encoder roll 44 electrically connected control 60, here a digital control.
  • the tape guide 50 in the region of a stack of packs 52 takes place open here, by two planymmetric arranged support home 54, which can be easily supplemented below open horizontal channel.
  • the tape drive roller 38 pushes the banderole 22 at high speed through the tape guide 50. After the formation of a present above free bullet sheet through the band 22 this is clamped at the front end. Then, the tape drive roller 38 of the tape insertion / retraction unit rotates in the opposite direction and pulls the tape 22 against the loaded stack of packages 52, which is referred to as return.
  • return By the encoder roller 44 an exact loop length is given, which is monitored by it by means of a digital control 60. When the preset length is reached, the digital controller immediately stops the return. Subsequently, the welding and cutting unit 48 comes into action.
  • the return of the band 22 can be controlled in other ways.
  • Fig. 2 shows the functionally essential part of the invention.
  • the tape roll 18 and the tape roll 20 for a band 22 are arranged one above the other on one level.
  • the band 22 of the active first band 18 passes over stationary deflection rollers 26 and mounted on the pivotable lever 28 guide rollers 30 of the working memory 24 via a further guide roller 56 in the band channel 32, which is designed as a sliding guide on both sides.
  • means 39 'for the tape insertion / tape retraction incorporated which comprise a capstan 38 'and a transport roller 42'.
  • the capstan 38 'and transport roller 42' are opened, the band 22 passes freely.
  • a pair of guide rollers 58 is arranged, which guides the band 22 to the band insertion / retraction unit 39 for the slip sheet 62 formed by the band 22, where the band 22 is clamped between the band drive roller 38 and the transport roller 42.
  • the drive motor of the tape insertion / retraction unit 39 is not shown.
  • a reference sensor 64 in the present case a photocell, monitors the tape slot.
  • the reference sensor 64 controls the rotary encoder roller 44, which also belongs to the measuring system.
  • the tape end control indicates the tape end of the band 22 in time, it remains residual material for at least one band loop.
  • a full second reserve tape roll 20 is arranged, the tape 22 is already threaded in the tape storage 25 and inserted into the tape channel 33, which with respect to the other
  • Means 39 "tape insertion / belt withdrawal means 39" are arranged, which likewise comprise a belt drive roller 38 "and a transport roller 42".
  • the tape insertion / withdrawal means 39 ', 39 "do not participate directly in the banding process in contrast to the tape insertion / recovery unit 39.
  • a sensor 68, 70 is installed for the detection of the tape retraction end. Upon reaching these sensors 68, 70 in the present photocells, the respective tape insertion / tape retraction unit is stopped immediately.
  • a unique special length x is added for the first loop 62 formed, which corresponds to the distance from the welding and cutting unit 48 to the reference sensor 64.
  • FIG. 3 shows a cross section through a band channel 32, 33, which is designed as a sliding guide for a band 22.
  • a band channel 32, 33 which is designed as a sliding guide for a band 22.
  • one of the width of the band adapted groove 74 is recessed, which leaves the imported banderole 22 together with a cover layer 76 little space.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Basic Packing Technique (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)

Abstract

The invention relates to a method and to a device for banding a stack of products which are to be stacked (52). A band (22) is unwound from a store roll of a band machine (10) and a loop (62) is formed for the stack of products which is to be stacked (52), by means of a band insertion/withdrawal unit (39). After the free end of the band is fixed in a return device and the band (22) is pulled to the stack of products which is to be stacked, the free end is stuck or welded and the pulled loop (62) is cut. In a program-controlled, continuous process and prior to changing the band, the end of the band (22) of a first band roll (18) is detected and the remainder of the band (22) is retracted. Then, the band (22) threaded into the band store (25) of a second complete band roll (20) is inserted into the band insertion/withdrawal unit (39) and the band continuos with delay. The end of the totally automatic band exchange is optically and/or acoustically displayed and the roll can change without pressure.

Description

Banderolieren eines PackgutstapelsBanding a stack of packaged goods
Die Erfindung bezieht sich auf ein Verfahren und eine Vorrichtung zum Banderolieren eines Packgutstapels, wobei von einer Rolle mit einem Bandspeicher einer Banderoliermaschine eine Banderole abgewickelt, mittels einer Bandein- schub-/Bandrückzugeinheit eine Schlaufe für den Packgutstapel gebildet, nach dem Festklemmen des freien Banderolenendes in einem Rücklauf an den Packgutstapel gezogen, das freie Ende verklebt oder verschweisst und die angezogene Schlaufe abgeschnitten wird.The invention relates to a method and a device for banding a stack of packaged goods, wherein unrolled from a roll with a tape storage a banding a band, formed by means of a Bandein- schub- / Bandrückzugeinheit a loop for the Packgutstapel, after clamping the free Banderolenendes in pulled a return to the stack of goods, the free end glued or welded and the tightened loop is cut off.
In einer Banderoliermaschine wird eine bandförmige Folie aus Papier, Kunststoff oder einem Verbundswerkstoff in einer die Aussenbegrenzung bildenden Bandführung als Schlaufe um den Packgutstapel geführt. Diese Bandführung ist als offener oder geschlossener Einschussbogen ausgebildet, je nach der Steifigkeit der Banderolen, den Dimensionen und der Verwendung des banderolierten Stapels. Bei weichen Banderolen sind zahlreiche Mittel zum Hochhalten des Bandes während und nachdem Bogendurchlauf bekannt, ein freier Rückzug- zum Anziehen der Banderolen muss jedoch immer gewährleistet sein.In a banding machine, a band-shaped film made of paper, plastic or a composite material is guided in a loop forming the outer boundary as a loop around the stack of packaged goods. This tape guide is designed as an open or closed slip sheet, depending on the rigidity of the bands, the dimensions and the use of the banded stack. With soft banderols, numerous means are known for holding the band during and after the sheet pass, but a free retraction for putting on the banderols must always be guaranteed.
Grundsätzlich kann das zu banderolierende Packgut beliebig ausgebildet sein, beispielsweise bezüglich der Grundfläche quadratisch, rechteckig, rund oder trapezförmig. Es wird wenigstens eine Banderole angelegt, bei mehreren Banderolen gleichzeitig oder nacheinander.In principle, the packaged goods to be banded can be of any desired design, for example square, rectangular, round or trapezoidal with respect to the base area. At least one banderole is applied, with several banderoles simultaneously or successively.
Eine vollautomatisch arbeitende Banderoliermaschine bildet vorerst eine in sich stabile oder hochgehaltene Schlaufe, in welche der Packgutstapel gelegt wird. Das Einlegen des Packgutstapels kann auch vor der Schlaufenbildung erfolgen. Durch einen Sensor gesteuert oder mit einem Hand- oder Fussschalter ausgelöst wird die an ihrem freien Ende festgeklemmte Banderole zurückgezogen, bis sie entsprechend den Eigenschaften des Packgutes mehr oder weniger satt anliegt. Dann wird, wie einleitend erwähnt, das festgeklemmte Ende mit dem angezogenen Band verklebt oder verschweisst und die Schlaufe abgeschnitten. Das Grundprinzip des Banderolierens ist auf breiter Basis bekannt. In der EP 0551244 A1 wird eine Banderoliermaschine beschrieben, welche eine KaIt- verschweisung umfasst. Dies bürgt für einen sauberen Verschluss, macht weniger Wartung erforderlich, verhindert Ablagerungen von Folienbrand und das Ersetzen von Heizelementen.A fully automatic banding machine initially forms a stable or upheld loop in which the Packgutstapel is placed. The loading of the packaged goods can also be done before looping. Controlled by a sensor or triggered by a hand or foot switch, the band clamped at its free end is retracted until It rests more or less rich according to the properties of the packaged goods. Then, as mentioned in the introduction, the clamped end is glued or welded to the tightened band and the loop is cut off. The basic principle of banding is widely known. In EP 0551244 A1, a banding machine is described, which comprises a capping. This guarantees a clean closure, requires less maintenance, prevents deposits of foil firing and the replacement of heating elements.
Trotz weit fortgeschrittener Automatisierung und Verfeinerung der einzelnen Komponenten entstehen im Dauerbetrieb stets Produktionsunterbrücke, wenn die Rolle mit der abgewickelten Banderole gewechselt werden muss. Eine Aufsichtsperson muss zu einem bestimmten Zeitpunkt an einer bestimmten Banderoliermaschine einen temporären Einsatz leisten, was neben dem eigentlichen Betriebsunterbruch zusätzliche Kosten erzeugt.Despite the far advanced automation and refinement of the individual components, production underlays are always produced in continuous operation when the reel needs to be replaced with the unwound banderole. A supervisor must at a certain time on a particular banding make a temporary use, which generates additional costs in addition to the actual business interruption.
Der Erfinder hat sich die Aufgabe gestellt, ein Verfahren und eine Vorrichtung der eingangs genannten Art zu schaffen, welche einen kontinuierlichen Betriebsablauf und zeitliche Flexibilität der Aufsichtsperson gewährleisten.The inventor's task is to provide a method and a device of the type mentioned, which ensure a continuous operation and temporal flexibility of the supervisor.
Bezüglich des Verfahrens wird die Aufgabe erfindungsgemäss dadurch gelöst, dass in einem programmgesteuerten, kontinuierlichen Verfahrensablauf vor einem Bandwechsel einer Banderoliermaschine das Ende der Banderole einer ersten Bandrolle detektiert, der Rest der Banderole zurückgezogen, die in den Bandspeicher einer zweiten vollen Bandrolle eingefädelte Banderole in die Bandeinschub-/Bandrückzugseinheit geschoben und das Banderolieren ohne Verzögerung fortgesetzt wird. Spezielle und weiterführende Ausführungsformen des Verfahrens sind Gegenstand von abhängigen Patentansprüchen.With regard to the method, the object is achieved in that detected in a program-controlled, continuous process before a band change a banding the end of the band of a first roll of tape, the rest of the banderole withdrawn, threaded into the tape storage a second full roll of tape in the tape slot - / belt retraction unit pushed and the banding is continued without delay. Specific and further embodiments of the method are the subject of dependent claims.
Von erfindungswesentlicher Bedeutung ist das Erkennen und Melden des Banderolenendes an die Steuerelektronik der Banderoliermaschine. Die Bandendkontrolle erfolgt vorzugsweise sensorgesteuert. Der Bandrückzug erfolgt so weit, dass der vorbereitete Einschub der Banderole ab der zweiten Rolle der Banderoliermaschine ungehindert erfolgen kann.Significant to the invention is the recognition and reporting the Banderolenendes to the control electronics of the banding machine. The tape end control is preferably sensor-controlled. The tape retraction is done so far, that the prepared insertion of the band from the second role of the banding machine can take place unhindered.
Der Bandwechsel erfolgt vollautomatisch in Sekundenschnelle, die Produktion kann ohne Unterbruch und ungehindert fortgesetzt werden. Der erfolgte Bandwechsel wird optisch und/oder akustisch angezeigt. Die Aufsichtsperson hat genügend Zeit, die verbrauchte Rolle auszuwechseln und die Banderole so in den Bandspeicher einzufädeln, dass die arbeitende Rolle jederzeit wieder automatisch ersetzt werden kann.The tape change is fully automatic in seconds, the production can be continued without interruption and unhindered. The band change is visually and / or acoustically displayed. The supervisor has enough time to replace the used role and thread the band in the tape storage so that the working role can be replaced automatically at any time again.
Bei einer Detektierung des Banderolenendes kann der Rest unverzüglich zurückgezogen werden. Vorzugsweise wird jedoch mit dem Rest der Banderole noch wenigstens eine Schlaufe gebildet und dann das Restband zurückgezogen. Die Anzahl der noch gebildeten Schlaufen hängt von der Länge der Banderole von der Bandendkontrolle bis zur Schweiss- und Schneideinheit sowie dem Umfang des Packgutstapels ab, woraus die Programmsteuerung der Banderoliermaschine die verbleibende Anzahl Schlaufenbildungen bis zum Bandrückzug berechnet und steuert. In der Regel sind dies eine bis zwei Schlaufen.Upon detection of the Banderolenendes the rest can be withdrawn immediately. Preferably, however, at least one loop is formed with the remainder of the band and then the residual band is withdrawn. The number of loops still formed depends on the length of the band from the Bandendkontrolle to the welding and cutting unit and the circumference of the stack of packaged goods, from which the program control of the banding machine calculates the remaining number of loops up to the band retraction and controls. Usually these are one to two loops.
Nach dem Bandwechsel und dem Einschub der neuen Banderole schaltet ein Sensor eines Wegmesssystems mit einer exakt mitlaufenden Drehgeberrolle ein. Das Wegmesssystem misst eine vorgegebene Bandlänge ab, welche in den Einschussbogen der Banderoliermaschine geschossen werden muss, ab. Die Vorgabe ist optimal, wenn zur Bildung der ersten Schlaufe nach dem Bandwechsel eine einmalige Speziallänge x der Banderole zugegeben wird, welche dem Abstand des Sensors des Wegmesssystems zur Schweiss- und Schneideinheit entspricht. Damit kann verhindert werden, dass die erste um den Packgutstapel gelegte Schlaufe der Banderole zu kurz ist, weil im Gegen- satz zu den nachfolgenden Schlaufenbildungen von der Referenzfotozelle für den Bandeinschub für den Schweiss- und Schneideinheit kein Bandmaterial liegt. In Bezug auf die Banderoliermaschine wird die Aufgabe erfindungsgemäss dadurch gelöst, dass sie eine programmgesteuerte betätigbare erste und eine zweite Bandrolle mit je einem Bandspeicher umfasst, wobei an jeden der beiden Bandspeicher ein Bandkanal anschliesst, welche V-förmig oder radius- förmig in Richtung eines gemeinsamen Führungsrollenpaares zusammenlaufen, über Mittel zum Bandvorschub bis zur Antriebsrolle der Bandvorschub- /Bandrückzugeinheit und zum Bandrückzug in den betreffenden Bandkanal verfügt. Spezielle und weiterbildende Ausführungsformen der Banderolier- maschine sind Gegenstand von abhängigen Patentansprüchen.After changing the strip and inserting the new banderole, a sensor of a position measuring system switches on with a precisely rotating encoder roller. The displacement measuring system measures a predetermined strip length, which must be shot in the slip-sheet of the banding machine. The specification is optimal if, to form the first loop after the band change, a unique special length x of the band is added, which corresponds to the distance of the sensor of the position measuring system to the welding and cutting unit. This prevents the first loop of the band around the stack of packagings from being too short because, in contrast to the subsequent loop formations of the reference photocell for the band insertion for the welding and cutting unit, there is no band material. With regard to the banding machine, the object is achieved according to the invention in that it comprises a program-controlled operable first and a second band roll, each with a band memory, wherein a band channel adjoins each of the two band storages which is V-shaped or radius-shaped in the direction of a common band Run together leadership pair, has means for tape feed to the drive roller of the tape feed / tape retracting unit and tape retraction in the respective band channel. Special and further embodiments of the banding machine are the subject of dependent claims.
Vorzugsweise im Bereich des Bandspeichers der ersten und der zweiten Rolle ist ein Sensor zum Detektieren des Banderolenendes angebracht. Zweckmässig ist dieser Sensor so positioniert, dass die Länge der Banderole von diesem Sensor zur Schweiss- und Schneideinheit grösser ist als die zu bildende Schlaufe um einen Packgutstapel des grösstmöglichen Ausmasses. So wird die auf die betreffende Rolle aufgewickelte Banderole maximal genutzt, es verbleibt nur ein kleiner, zurückzuziehender Rist.Preferably, in the region of the tape storage of the first and the second roller, a sensor for detecting the Banderolenendes is attached. Conveniently, this sensor is positioned so that the length of the band from this sensor to the welding and cutting unit is greater than the loop to be formed around a packaged goods stack of the largest possible extent. Thus the banderole wound up on the relevant roll is maximally utilized, leaving only a small, withdrawable instep.
Die Bandkanäle sind zweckmässig als beidseitige Gleitführung oder Laufrollenbahn, auch mit Antriebsrollen, oder Riemenführung ausgebildet. Die Banderole festklemmende Antriebsrollen einer Laufrollenbahn oder Riemen einer Riemenführung sind gleichzeitig Mittel zum Vorschub oder Rückzug der Banderole. Vorzugsweise im Bereich der Bandkanäle ist ein Sensor angeordnet, der das Ende des Bandrückzugs auslöst und deshalb auch Bandenkontrolle genannt wird.The band channels are expediently designed as a double-sided sliding or roller track, with drive rollers or belt guide. The banderole clamping drive rollers of a roller conveyor or belt of a belt guide are at the same time means for advancing or retraction of the band. Preferably, in the region of the band channels, a sensor is arranged which triggers the end of the band retraction and is therefore also called band control.
Weiter ist zwischen der Bandeinschub-/Bandrückzugeinheit und der Schweiss- und Schneideeinheit zweckmässig ein Referenzsensor für den Bandeinschub und in Laufrichtung der Banderole vor der Bandeinschub-/Bandrückzugeinheit.Further, between the Bandeinschub- / Bandrückzugeinheit and the welding and cutting unit expediently a reference sensor for the tape slot and in the direction of the band before the Bandeinschub- / Bandrückzugeinheit.
Die Erfindung wird anhand von in der Zeichnung dargestellten Ausführungsbei- spielen, welche auch Gegenstand von abhängigen Patentansprüchen sind, näher erläutert. Es zeigen schematisch:The invention will be described with reference to exemplary embodiments shown in the drawing. play, which are also the subject of dependent claims, explained in more detail. They show schematically:
- Fig. 1 eine Ansicht einer Banderoliermaschine mit zwei koaxial hintereinander angeordneten Bandrollen,1 is a view of a banding machine with two coaxially arranged behind one another tape rolls,
- Fig. 2 den erfindungswesentlichen Teil einer Banderoliermaschine mit übereinander angeordneten Bandrollen mit parallelen Achsen, und2 shows the invention essential part of a banding machine with superimposed belt rollers with parallel axes, and
- Fig. 3 einem Bandkanal mit einer Gleitführung.- Fig. 3 a band channel with a sliding guide.
Fig. 1 zeigt eine Banderoliermaschine 10 mit einem höhenverstellbaren Fahrgestell 12 auf arretierbaren Rädern 14. An einer Querstrebe 16 des Fahrgestells 12 ist eine hintere, nicht sichtbare Bandrolle 18 und eine koaxiale vordere Banderole 20 angeordnet. Jede der in axialer Richtung verschiebbaren Rollen 18, 20 hat einen ebenfalls verschiebbaren Bandspeicher 24, 25, über welchen eine Banderole 22 abgewickelt wird. Die Bandspeicher 24, 25 umfassen vorliegend je drei ortsfeste Umlenkrollen 26 und drei auf einem gespannten, schwenkbaren Hebel 28 gelagerte Umlenkrollen 30. Bei der sehr schnell erfolgenden Schlaufenbildung dienen die Bandspeicher 24, 25 als Reserve, der Hebel 28 wird dabei angehoben. Nach einer nicht dargestellten Variante kann der Bandspeicher auch als Magazin ausgebildet sein.Fig. 1 shows a banding machine 10 with a height-adjustable chassis 12 on lockable wheels 14. On a cross member 16 of the chassis 12, a rear, non-visible tape roll 18 and a coaxial front banderole 20 is arranged. Each of the axially displaceable rollers 18, 20 has a likewise displaceable tape storage 24, 25, over which a band 22 is unwound. In the present case, the band stores 24, 25 each comprise three fixed deflecting rollers 26 and three deflecting rollers 30 mounted on a tensioned, pivotable lever 28. In the case of very rapid loop formation, the band accumulators 24, 25 serve as a reserve, the lever 28 being raised. According to a variant, not shown, the tape storage can also be designed as a magazine.
Die Bandrolle 20 mit dem Bandspeicher 24 ist in Arbeitsposition, die nicht sichtbare Bandrolle 18 mit einem entsprechenden, ebenfalls nicht sichtbaren Bandspeicher 24 ist in Reserveposition. Jede dieser beiden verschiebbaren Band- rollen 18, 22 mit Bandspeicher 24, 25 umfasst nicht gezeichnete steuerbare Mittel zum Bandvorschub/Bandrückzug, analog Fig. 2.The tape roll 20 with the tape storage 24 is in working position, the invisible tape roll 18 with a corresponding, also not visible tape storage 24 is in reserve position. Each of these two displaceable tape rollers 18, 22 with tape storage 24, 25 comprises not shown controllable means for tape feed / tape retraction, analogous to FIG. 2.
Nach dem Bandspeicher 25 wird die Banderole 22 in einen Bandkanal 32 gezogen, welcher in einem Maschinengehäuse 34 mit einem Klapptischblech 36 angeordnet ist. In diesem Maschinengehäuse 34 sind weitere, verdeckte Maschinenelemente angeordnet, beispielsweise eine Bandantriebsrolle 38 einer Bandeinschub-/Bandrückzugeinheit 39, wobei bei einer entsprechenden Stellung eines Hebels 40 die Banderole 22 an die Bandantriebsrolle 38 pressende oder dieser Freilauf gewährende Transportrolle 42, eine mit der Banderole 22 exakt mitlaufende Drehgeberrolle 44, eine Niederhalteplatte 46, eine Schweiss- und Schneideeinheit 48, sowie eine mit dem Antrieb der Band- antriebsrolle 38 und der Drehgeberrolle 44 elektrisch verbundene Steuerung 60, vorliegend eine Digitalsteuerung.After the band store 25, the band 22 is pulled into a band channel 32, which is arranged in a machine housing 34 with a folding table 36. In this machine housing 34 further hidden machine elements are arranged, for example, a capstan 38 of a tape insertion / tape retracting unit 39, wherein at a corresponding Position of a lever 40, the band 22 to the capstan 38 pressing or this freewheel granting the transport roller 42, with the band 22 exactly revolving encoder roller 44, a hold-down plate 46, a welding and cutting unit 48, and one with the drive of the belt drive roller 38th and the encoder roll 44 electrically connected control 60, here a digital control.
Die Bandführung 50 im Bereich eines Packgutstapels 52 erfolgt vorliegend offen, durch zwei plansymetrisch angeordnete Stützhome 54, welche ohne weiteres unten offenen horizontal Kanal ergänzt werden können.The tape guide 50 in the region of a stack of packs 52 takes place open here, by two planymmetric arranged support home 54, which can be easily supplemented below open horizontal channel.
Die Bandantriebsrolle 38 stösst die Banderole 22 mit grosser Geschwindigkeit durch die Bandführung 50. Nach der Bildung eines vorliegend oben freien Einschussbogens durch die Banderole 22 wird diese am stirnseitigen Ende festgeklemmt. Dann dreht die Bandantriebsrolle 38 der Bandeinschub- /Bandrückzugeinheit in die entgegengesetzte Richtung und zieht die Banderole 22 an den eingelegten Packgutstapel 52, was als Rücklauf bezeichnet wird. Durch die Drehgeberrolle 44 wird eine exakte Schlaufenlänge vorgegeben, welche von ihr mit Hilfe einer Digitalsteuerung 60 überwacht wird. Beim Erreichen der vorgegebenen Länge stoppt die Digitalsteuerung sofort den Rücklauf. Anschliessend tritt die Schweiss- und Schneideinheit 48 in Aktion. Selbstverständlich kann der Rücklauf der Banderole 22 auch auf andere Weise gesteuert werden.The tape drive roller 38 pushes the banderole 22 at high speed through the tape guide 50. After the formation of a present above free bullet sheet through the band 22 this is clamped at the front end. Then, the tape drive roller 38 of the tape insertion / retraction unit rotates in the opposite direction and pulls the tape 22 against the loaded stack of packages 52, which is referred to as return. By the encoder roller 44 an exact loop length is given, which is monitored by it by means of a digital control 60. When the preset length is reached, the digital controller immediately stops the return. Subsequently, the welding and cutting unit 48 comes into action. Of course, the return of the band 22 can be controlled in other ways.
Während in Fig. 1 eine Banderoliermaschine insgesamt dargestellt ist, zeigt Fig. 2 den funktionalwesentlichen Teil der Erfindung. Die Bandrolle 18 und die Bandrolle 20 für eine Banderole 22 sind auf einer Ebene übereinander angeordnet. Die Banderole 22 der aktiven ersten Banderole 18 läuft über ortsfeste Umlenkrollen 26 und auf dem schwenkbaren Hebel 28 gelagerte Umlenkrollen 30 des Arbeitsspeichers 24 über eine weitere Umlenkrolle 56 in den Bandkanal 32, welcher als beidseitige Gleitführung ausgebildet ist. Am Eingang des Bandkanals 32 sind Mittel 39' für den Bandeinschub/Bandrückzug eingebaut, welche eine Bandantriebsrolle 38' und eine Transportrolle 42' umfassen. Die Bandantriebsrolle 38' und Transportrolle 42' sind geöffnet, die Banderole 22 läuft frei hindurch. Unmittelbar nach dem Ausgang des Bandkanals 32 ist ein Führungsrollenpaar 58 angeordnet, welches die Banderole 22 zur Bandeinschub-/Bandrückzugeinheit 39 für den durch die Banderole 22 gebildeten Einschussbogen 62 führt, wo die Banderole 22 zwischen der Bandantriebsrolle 38 und der Transportrolle 42 festgeklemmt ist. Der Antriebsmotor der Bandeinschub-/Bandrückzugeinheit 39 ist nicht dargestellt.While a banding machine is shown in total in Fig. 1, Fig. 2 shows the functionally essential part of the invention. The tape roll 18 and the tape roll 20 for a band 22 are arranged one above the other on one level. The band 22 of the active first band 18 passes over stationary deflection rollers 26 and mounted on the pivotable lever 28 guide rollers 30 of the working memory 24 via a further guide roller 56 in the band channel 32, which is designed as a sliding guide on both sides. At the entrance of the band channel 32 are means 39 'for the tape insertion / tape retraction incorporated, which comprise a capstan 38 'and a transport roller 42'. The capstan 38 'and transport roller 42' are opened, the band 22 passes freely. Immediately after the exit of the band channel 32, a pair of guide rollers 58 is arranged, which guides the band 22 to the band insertion / retraction unit 39 for the slip sheet 62 formed by the band 22, where the band 22 is clamped between the band drive roller 38 and the transport roller 42. The drive motor of the tape insertion / retraction unit 39 is not shown.
Ein Referenz-Sensor 64, vorliegend eine Fotozelle, überwacht den Bandeinschub. Der Referenz-Sensor 64 steuert die ebenfalls zum Messsystem gehörende Drehgeberrolle 44.A reference sensor 64, in the present case a photocell, monitors the tape slot. The reference sensor 64 controls the rotary encoder roller 44, which also belongs to the measuring system.
Ein weiterer Sensor 66 im Bereich des Bandspeichers 24, die Bandendkontrolle zeigt das Bandende der Banderole 22 rechtzeitig an, es verbleibt Restmaterial für wenigstens eine Banderolenschlaufe.Another sensor 66 in the region of the tape storage 24, the tape end control indicates the tape end of the band 22 in time, it remains residual material for at least one band loop.
Oberhalb der arbeitenden ersten Bandrolle 18 ist eine volle zweite Reserve- bandrolle 20 angeordnet, deren Banderole 22 ist bereits im Bandspeicher 25 eingefädelt und in den Bandkanal 33 eingeführt, welcher bezüglich des anderenAbove the working first tape roll 18, a full second reserve tape roll 20 is arranged, the tape 22 is already threaded in the tape storage 25 and inserted into the tape channel 33, which with respect to the other
Bandkanals 32 V-förmig angeordnet ist und in Richtung desBandkanal 32 V-shaped and is in the direction of
Führungsrollenpaares 58 verläuft. Eingangs des Bandkanals 33 ist eine weitereGuide roller pair 58 runs. Input of the band channel 33 is another
Mittel 39" Bandeinschub/Bandrückzugmittel 39" angeordnet, welche ebenfalls eine Bandantriebsrolle 38" und eine Transportrolle 42" umfassen. DieMeans 39 "tape insertion / belt withdrawal means 39" are arranged, which likewise comprise a belt drive roller 38 "and a transport roller 42". The
Bandantriebsrolle 38" und die Transportrolle 42" klemmen die ruhendeTape drive roller 38 "and the transport roller 42" clamp the dormant
Banderole 22 fest.Banderole 22 firmly.
Die Bandeinschub-/Bandrückzugmittel 39', 39" nehmen im Gegensatz zur BandeinschubVBandrückzugeinheit 39 nicht direkt am Banderolierprozess teil.The tape insertion / withdrawal means 39 ', 39 "do not participate directly in the banding process in contrast to the tape insertion / recovery unit 39.
Sie dienen lediglich dazu, bei einem Bandwechsel den Rest der abgewickeltenThey serve only to, with a band change the remainder of the unwound
Banderole 22 zurückzuziehen beziehungsweise das stirnseitige Ende der in Reserve gehaltenen Banderole 22 bis zur Bandeinschub-/Bandrückzugeinheit 39 vorzuschieben.Banderole retract 22 or the front end of the in Reserve held banderole 22 to the tape insertion / tape retracting unit 39 to advance.
In Richtung der Austrittsöffnung der Bandkanäle 32, 33 ist ein Sensor 68, 70 für die Detektierung des Bandrückzugendes eingebaut. Beim erreichen dieser Sensoren 68, 70 vorliegend Fotozellen, wird die betreffende Bandeinschub- /Bandrückzugeinheit sofort gestoppt.In the direction of the outlet opening of the band channels 32, 33, a sensor 68, 70 is installed for the detection of the tape retraction end. Upon reaching these sensors 68, 70 in the present photocells, the respective tape insertion / tape retraction unit is stopped immediately.
Nach einem Bandwechsel wird für die erste gebildete Schlaufe 62 eine einmalige Speziallänge x zugegeben, welche den Abstand von der Schweiss- und Schneideinheit 48 zum Referenz-Sensor 64 entspricht.After a band change, a unique special length x is added for the first loop 62 formed, which corresponds to the distance from the welding and cutting unit 48 to the reference sensor 64.
Fig. 3 zeigt einen Querschnitt durch einen Bandkanal 32, 33, welcher als Gleitführung für eine Banderole 22 ausgebildet ist. In einer Kernschicht 72 ist eine der breite der Banderole angepasste Nut 74 ausgespart, welche der eingeführten Banderole 22 zusammen mit einer Deckschicht 76 wenig Freiraum lässt. FIG. 3 shows a cross section through a band channel 32, 33, which is designed as a sliding guide for a band 22. In a core layer 72, one of the width of the band adapted groove 74 is recessed, which leaves the imported banderole 22 together with a cover layer 76 little space.

Claims

Patentansprüche claims
1. Verfahren zum Banderolieren eines Packgutstapels (52), wobei von einer Rolle mit einem Bandspeicher einer Banderoliermaschine (10) eine Banderole (22) abgewickelt, mittels einer Bandeinschub/Bandrückzugeinheit (39) eine Schlaufe (62) für den Packgutstapel (52) gebildet, nach dem Festklemmen des freien Banderolenendes in einem Rücklauf an den Packgutstapel (52) gezogen, das freie Ende verklebt oder ver- schweisst und die angezogene Schlaufe (62) abgeschnitten wird,1. A method for banding a stack of packaged goods (52), wherein from a roll with a tape storage a banding machine (10) unrolled a band (22) by means of a tape insertion / band retraction unit (39) a loop (62) for the Packgutstapel (52) , after clamping the free banderole end in a return to the pack stack (52) pulled, the free end glued or welded and the tightened loop (62) is cut off,
dadurch gekennzeichnet, dasscharacterized in that
in einem programmgesteuerten, kontinuierlichen Verfahrensablauf vor einem Bandwechsel das Ende der Banderole (22) einer ersten Bandrolle (18) detektiert, der Rest der Banderole (22) zurückgezogen, die in den Bandspeicher (25) einer zweiten vollen Bandrolle (20) eingefädelte Banderole (22) in die Bandeinschub/Bandrückzugeinheit (39) geschoben und das Banderolieren ohne Verzögerung fortgesetzt wird.in a program-controlled, continuous process sequence before a band change, the end of the band (22) of a first band roll (18) detected, the remainder of the band (22) withdrawn, the band (25) threaded into the band memory (25) of a second full band roll (20) ( 22) is pushed into the tape insert / tape retracting unit (39) and the tape is continued without delay.
2. Verfahren nach Anspruch 1 , dadurch gekennzeichnet, dass das Ende sensorgesteuert detektiert und der Vorschub der Banderole (22) der ersten Bandrolle (18) gestoppt wird.2. The method according to claim 1, characterized in that the end detected sensor-controlled and the feed of the band (22) of the first roll of tape (18) is stopped.
3. Verfahren nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass nach der Detektierung des Endes einer Banderole (22) noch wenigstens eine letzte Schlaufe (62) gebildet wird.3. The method according to claim 1 or 2, characterized in that after the detection of the end of a band (22) at least one last loop (62) is formed.
4. Verfahren nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass ein Referenz-Sensor (64) ein Wegmesssystem mit einer mitlaufenden Dreh geberrolle (44) einschaltet, welches Messsystem eine vorgegebene Bandlänge abmisst. 4. The method according to any one of claims 1 to 3, characterized in that a reference sensor (64) a position measuring system with a rotating rotary encoder roller (44) turns on, which measuring system measures a predetermined band length.
5. Verfahren nach Anspruch 4, dadurch gekennzeichnet, dass das Wegmesssystem zur Bildung der ersten Schlaufe mit der Banderole (62) nach dem Bandwechsel eine einmalige Speziallänge (x) zugibt, welche dem Abstand des Referenz-Sensors (64) des Wegmesssystems von der Schweiss- und Schneideinheit (48) entspricht.5. The method according to claim 4, characterized in that the path measuring system for forming the first loop with the band (62) after the band change a unique special length (x) admits, which the distance of the reference sensor (64) of the path measuring system of the sweat - And cutting unit (48) corresponds.
6. Banderoliermaschine (10) zum Banderolieren eines Packgutstapels (52) mit einer Banderole (22), welche Banderoliermaschine (10) Bandreserven, eine Bandeinschub-/Bandrückzugeinheit (39), eine Schweiss- und Schneideinheit (40) und eine Bandführung (50) im Bereich des Packgutstapels (52) aufweist,6. banding machine (10) for banding a stack of packaged goods (52) with a band (22), which banding machine (10) band reserves, a Bandeinschub- / Bandrückzugeinheit (39), a welding and cutting unit (40) and a tape guide (50) in the region of the packaged goods (52),
dadurch gekennzeichnet, dasscharacterized in that
die programmgesteuert betätigbare Banderoliermaschine (10) eine erste und eine zweite Bandrolle (18, 20) mit je einem Bandspeicher (24, 25) umfasst, wobei an jeden der beiden Bandspeicher ein Bandkanal (32, 33) anschliesst, welche V-förmig oder radiusförmig in Richtung eines gemeinsamen Führungsrollenpaares (58) zusammenlaufen über Mittel (39', 39") zum Bandvorschub bis zur Antriebsrolle (38) der Bandvorschub-/Bandrückzugeinheit (39) und zum Bandrückzug in den betreffenden Bandkanal (32, 33) verfügt.the programatically operable banding machine (10) comprises a first and a second band roll (18, 20) each having a band memory (24, 25), wherein to each of the two band memory a band channel (32, 33) adjoins which V-shaped or radius-shaped in the direction of a common pair of guide rollers (58) converge over means (39 ', 39 ") for tape feed to the drive roller (38) of the tape feed / tape retracting unit (39) and the tape retraction in the respective tape channel (32, 33) has.
7. Banderoliermaschine (10) nach Anspruch 6, dadurch gekennzeichnet, dass im Bereich des Bandspeichers (24, 25) der ersten und der zweiten Bandrolle (18, 20) ein Sensor (66, 67) zum Detektieren des Endes der Banderole (22) angeordnet ist, vorzugsweise derart, das die Länge der Banderole (22) von dem betreffenden Sensor (66, 67) zur Schweiss- und Schneideinheit (48) grösser ist als die zu bildende Schlaufe (62) um den zu bindenden Packgutstapel (52). 7. banding machine (10) according to claim 6, characterized in that in the region of the band memory (24, 25) of the first and the second tape roll (18, 20) has a sensor (66, 67) for detecting the end of the band (22) is arranged, preferably in such a way that the length of the band (22) of the respective sensor (66, 67) for welding and cutting unit (48) is greater than the loop to be formed (62) to be packaged stack of goods (52).
8. Banderoliermaschine (10) nach Anspruch 6 oder 7, dadurch gekennzeichnet, dass die Bandkanäle (32, 33) als beidseitige Gleitführung oder eine Laufrollenbahn, auch mit Antriebsrollen, oder als Riemenführung ausgebildet sind.8. banding machine (10) according to claim 6 or 7, characterized in that the band channels (32, 33) are designed as a double-sided slide or a roller track, with drive rollers, or as a belt guide.
9. Banderoliermaschine (10) nach einem der Ansprüche 6 bis 8, dadurch gekennzeichnet, dass im Bereich der Bandkanäle (32, 33) ein Sensor (68, 70) angeordnet ist, der das Ende des Rückzugs des Banderolenrests auslöst.9. banding machine (10) according to one of claims 6 to 8, characterized in that in the region of the band channels (32, 33), a sensor (68, 70) is arranged, which triggers the end of the withdrawal of Banderolenrests.
10. Banderoliermaschine (10) nach einem der Ansprüche 6 bis 9, dadurch gekennzeichnet, dass zwischen der Bandeinschub-/Bandrückzugeinheit (39) und der Schweiss- und Schneideinheit (48) ein Referenz-Sensor (64), vorzugsweise eine Fotozelle, für den Bandeinschub und in Laufrichtung der Banderole (22) vor der Bandeinschub-/Bandrückzugeinheit (39) eine Drehgeberrolle (44) des Wegmesssystems eingebaut ist. 10. Banding machine (10) according to one of claims 6 to 9, characterized in that between the Bandeinschub- / Bandrückzugeinheit (39) and the welding and cutting unit (48) has a reference sensor (64), preferably a photocell, for the Tape insert and in the direction of the band (22) before the Bandeinschub- / Bandrückzugeinheit (39) a rotary encoder roller (44) of the position measuring system is installed.
EP06761296A 2005-09-05 2006-08-23 Banding a stack of articles Active EP1922253B1 (en)

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CH698112B1 (en) 2009-05-29
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JP2009506954A (en) 2009-02-19
DE502006005047D1 (en) 2009-11-19
ATE444897T1 (en) 2009-10-15
CA2620998A1 (en) 2007-03-15
CA2620998C (en) 2013-04-16
JP4988739B2 (en) 2012-08-01
US20080216449A1 (en) 2008-09-11

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