EP1582462B1 - Vorrichtung zum Banderolieren von Produkten - Google Patents

Vorrichtung zum Banderolieren von Produkten Download PDF

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Publication number
EP1582462B1
EP1582462B1 EP20050425189 EP05425189A EP1582462B1 EP 1582462 B1 EP1582462 B1 EP 1582462B1 EP 20050425189 EP20050425189 EP 20050425189 EP 05425189 A EP05425189 A EP 05425189A EP 1582462 B1 EP1582462 B1 EP 1582462B1
Authority
EP
European Patent Office
Prior art keywords
film
unit
rod
sealing
products
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.)
Not-in-force
Application number
EP20050425189
Other languages
English (en)
French (fr)
Other versions
EP1582462A1 (de
Inventor
Mauro Cere'
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.)
Aetna Group SpA
Original Assignee
Aetna Group SpA
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 Aetna Group SpA filed Critical Aetna Group SpA
Publication of EP1582462A1 publication Critical patent/EP1582462A1/de
Application granted granted Critical
Publication of EP1582462B1 publication Critical patent/EP1582462B1/de
Not-in-force 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
    • B65B9/00—Enclosing successive articles, or quantities of material, e.g. liquids or semiliquids, in flat, folded, or tubular webs of flexible sheet material; Subdividing filled flexible tubes to form packages
    • B65B9/02—Enclosing successive articles, or quantities of material between opposed webs
    • B65B9/026—Enclosing successive articles, or quantities of material between opposed webs the webs forming a curtain
    • 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
    • B65B13/02—Applying and securing binding material around articles or groups of articles, e.g. using strings, wires, strips, bands or tapes

Definitions

  • the present invention relates to an apparatus for banding products, in particular, stacked products (such as, for example, but not restricted to, packs of bottles or other containers) to undergo intermediate processes and to be transported from one factory to another or from one processing station to another.
  • stacked products such as, for example, but not restricted to, packs of bottles or other containers
  • Apparatus of this type is used to wrap a band of material around a group of products (preferably palletised) stacked to a certain height and relatively light in weight, in such a way as to stabilise the stack during its transportation from one processing line to another.
  • the palletised load might consist, for example, of bottle crates placed side by side and stacked in two or more layers.
  • the banding apparatus wraps a first band of plastic film at a certain height in order to hold the stack together at the most unstable part of it which would be the first to topple during transportation.
  • Prior art machines that perform banding operations of this type comprise a portal frame structure whose uprights mount a pair of film rolls at a predetermined height.
  • the film is unwound by suitable rollers in such a way that it is positioned transversely between the uprights to intercept the palletised load as the pallet moves under the portal frame on a conveyor.
  • the forward motion of the pallet causes the rolls to unwind so as to wrap the band around the sides of the products stacked on the pallet.
  • a unit comprising a sealer and a cutter, mounted behind the uprights, runs along the back of the palletised load on suitable supports in a direction parallel to the rear face of the load in such a way that the band of film is wrapped right around the load.
  • the film forms a loop around the upper section of the palletised product load and, since the film used is usually stretch film, also has a tightening effect which holds the load together.
  • the section of the band at the back of the palletised load is sealed and, as soon as this has been done, the cutter cuts the band half way between the two sealed ends: that means the looped band wrapped around the palletised load is closed, sealed and cut off, while the seal keeps the two rolls joined to each other by the remaining film positioned transversely between the two uprights and ready to intercept the next palletised load moving forward on the conveyor, thus ensuring that the process is not interrupted.
  • Apparatus of this type is also equipped with a unit for inspecting the band or bands of film applied to the product group and which, if necessary, stops the apparatus if the band of film has not been applied or or has been applied incorrectly.
  • the first is a suction cup unit, located near one of the uprights of the portal frame and activated when the banding cycle has been completed; the suction cup unit is moved into contact with the band and applies a vacuum which exerts a pulling action on the film enabling the control system to detect whether the band of film has been applied and, if it has, whether it has been applied correctly.
  • the second solution is one proposed by the Applicant, again in patent application EP 1.357.031, and is a unit consisting of a hooked rod located, with respect to the product feed direction, behind one of the frame uprights.
  • the rod is inserted between the product stack and the band of film being wound around the products and, once the band has been sealed, exerts a pulling action on the film to check whether it has been applied correctly and is wound tightly around the products.
  • the present invention therefore has for an aim to overcome the above mentioned drawbacks through a product banding apparatus that is at once reliable and precise and that is equipped with film inspection units which are reliable, economical and technically integrated into the production cycle so as not to have negative effects on the operation of the apparatus.
  • the apparatus disclosed is used for banding individual, grouped or palletised products and, in particular, for banding products stacked to a certain height and relatively light in weight, in such a way as to stabilise the stack during its transportation from one processing line to another.
  • the apparatus is used for banding palletised loads consisting of bottle crates placed side by side and stacked in two or more layers.
  • the apparatus 1 basically comprises:
  • the unit 11 for inspecting the film 9 is associated with the sealing and cutting unit 10 and is designed to come into operation after the step of sealing the film 9 has been completed.
  • the unit 11 comes into operation simultaneously with the completion of the cycle of wrapping the film 9 around the products 3.
  • the film 9 inspection unit 11 may come into operation when the sealing and cutting unit 10 moves from the working position to the idle position.
  • the unit 11 might come into operation even before this, when the film 9, sealed and cut by the sealing and cutting unit 10, is released.
  • the apparatus 1 may be equipped with four rolls 5, 6, 5', 6' of film 9, 9', operating in pairs at two different heights, and two separate units 10, 10' for sealing and cutting the respective film 9, 9'.
  • each unit 10, 10' for sealing and cutting the respective film 9, 9' is divided into two half-parts 12 and 13 each associated with a respective drive beam 14 and 15 for moving it from the idle position to the working position and vice versa.
  • an apparatus 1 structured in this way, there may be two units 11 and 11' for inspecting the respective film 9, 9' and associated with the two respective sealing and cutting units 10 and 10'.
  • Each of the units 11, 11' for inspecting the film 9, 9' may be associated with one of the half-parts 12 and 13 constituting the unit 10 and 10' for sealing and cutting the film 9, 9'.
  • each of the film 9, 9' inspection units 11 and 11' comprises a microswitch 16 controlled by a sensor 17 that touches the respective film 9, 9'.
  • the sensor 17 consists of a rod driven by suitable means 18 on the half-part 12, 13 so that it moves at least between a first idle position in which the contact rod 17 is lowered (see Figures 2, 3 and 5) and a working position in which the rod 17, when the two half-parts 12 and 13 are moved towards each other, is raised between the products 3 and the respective film 9 and 9' being wrapped around them (see Figures 4 and 6).
  • the rod 17 is also linked to a lever 19 forming part of the drive means 18 and able to rotate freely about at least two axes Z and X (see Figure 2) perpendicular to each other and defining a plane parallel to the feed direction D of the products 3 in such a way that it is initially angled towards the products 3 to an initial position between the sealed film 9, 9' and the products 3 (see Figures 6, 7 and 8) and is then pulled away from the film 9, 9' when the respective half-part 12, 13 moves from the working position to the idle position (see Figure 9).
  • the rod 17 is linked to the lever 19 through a spring 20 which permits the aforementioned free rotation through at least one arc about the two axes Z and X which are perpendicular to each other (see arrows FZ and FX, Figure 2).
  • the lever 19 is in turn pivoted to one of the two half-parts 12, 13 of the respective sealing unit 10 and 10' and driven by the above mentioned lever 19 drive means 18 from a rest position, in which the lever 19 is parallel to the half part 12 and 13 with the rod 17 in the lowered position (see Figure 3), to a working position, in which the lever 19 is rotated through a predetermined angle ⁇ and the rod 17 is in a raised position, that is to say, vertical (see Figure 4 and arrow F18).
  • the lever 19 is linked at one end of it to a pneumatic actuator 18 constituting the above mentioned drive means.
  • the actuator 18 is associated with the half-part 12, 13 of the sealing unit 10, 10' and enables the lever 19 to be moved from the rest position to the working position and vice versa.
  • the movement of the rod 17 then acts on the microswitch 16, which is connected to a control unit 22 (illustrated as a block since it is of known type) for controlling the apparatus 1, and which sends to the unit 22 a signal S indicating that the film 9, 9' has been applied to the products 3 correctly when the rod 17 reaches a predetermined lowered position (see Figure 3).
  • a control unit 22 illustrated as a block since it is of known type
  • the rod 17 might be connected to an element 21 for detecting the tension of the film 9, 9'.
  • This detection element 21 would record the deviation of the rod 17 from its rest position, that is to say, from the minimum electrical signal corresponding to this position, to the aforementioned working position in which the rod 17 is raised and produces a signal S1 whose value is proportional to the deviation from the rest position, that is to say, proportional to the inclination of the rod 17.
  • the detection element 21 would be connected to, and would act in conjunction with, the microswitch 16 and would act on the rod 17 in such a way as to produce the signal S1 as a function of the inclination of the rod 17 towards the products 3 when pulled by the film 9, 9'.
  • this detection element consists of a loading cell 21 connected to the rod 17 and acting in conjunction with the microswitch 16: the loading cell 21 permits inclination of the rod 17 towards the products (see Figure 8 again) if the pulling force applied to the rod is greater than a predetermined opposing force applied by the cell 21 itself.
  • the detection element consists of a Hall effect sensor 21, again connected to the rod 17 and acting in conjunction with the microswitch 16.
  • the detection element consists of a proximity sensor 21, again connected to the rod 17 and acting in conjunction with the microswitch 16.
  • the two half parts 12 and 13 of the sealing and cutting unit 10 start moving towards each other (see arrow F10), intercepting the film 9 which is already partly unwound.
  • the unit 11 is initially in the idle position, that is to say, with the sensor-rod 17 in the lowered position (as illustrated in Figure 3).
  • the rod 17 is "set", that is, raised vertically by the actuator 18 rotating the lever 19 (see Figures 4 and 6).
  • the film band wound around the products 3 tends to move into contact with the products 3 themselves, followed by the rod 17 which thus moves away at an angle from the half-part 12 it is connected to (see Figure 8 and arrow F17). If a detection unit 21 as described above is fitted, the latter sends a signal S1 to the control unit 22 whose value is a function of the position adopted by the rod 17 and which is compared to the preset minimum initial signal.
  • the preset aims of the invention are thus achieved by fitting a simple, low-cost and compact unit directly on the sealing and cutting unit of the apparatus.
  • This arrangement besides bringing advantages in terms of structure, cost and dimensions, also permits a rapid and immediate inspection of the film band applied, even with reference to two or more parameters, since the inspection is performed during the normal banding cycle without slowing down the process.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Basic Packing Technique (AREA)
  • Auxiliary Devices For And Details Of Packaging Control (AREA)

Claims (17)

  1. Vorrichtung zum Banderolieren einzelner, gruppierter oder palettierter Produkte, wobei die Vorrichtung (1) von der Art ist, die Folgendes umfasst:
    - Einen Förderer (2) zum Transport der Produkte (3) in eine Zufuhrrichtung (D).
    - Einen Rahmen (4), der über dem Förderer (2) montiert ist und mit mindestens zwei Folienrollen (5, 6) ausgestattet ist, die an den Rahmenständem (7, 8) montiert sind, so dass sie ein Folienband (9) bilden, das in Hinsicht auf die Ständer (7, 8) quer positioniert ist und das von der Vorderseite der Produkte (3) abgefangen wird, wenn sie sich vorwärts bewegen, so dass die Folie (9) von den beiden Rollen (5, 6) abgewickelt wird.
    - Mindestens eine Einheit (10) zum Versiegeln und Schneiden der Folie (9), die vom Rahmen (4) gestützt wird und zwischen einer Ruhestellung und einer Betriebsstellung beweglich ist, wobei sich die Einheit (10) solcherart bewegt, dass sie einen Folienwickelzyklus definiert, der die Schritte des Abfangens der Folie, ihres Versiegelns und des Abschneidens eines Anteils der Folie (9), der um die Produkte (3) gewickelt ist, umfasst.
    - Mindestens eine Einheit (11), die einen Mikroschalter (16) umfasst, der von einem Sensor (17), der die Folie (9) berührt, um die Folie (9) zu überprüfen, gesteuert wird, wobei die Vorrichtung dadurch gekennzeichnet ist, dass die Einheit (11) zur Prüfung der Folie (9) mit der Versiegel- und Schneideinheit (10) verbunden ist, da die Einheit (11) so entworfen wurde, dass sie aktiv wird, nachdem der Schritt des Versiegelns der Folie (9) abgeschlossen ist.
  2. Vorrichtung nach Patentanspruch 1, gekennzeichnet dadurch, dass die Einheit (11) zur Prüfung der Folie (9) mit der Versiegel- und Schneideinheit (10) verbunden ist und dass die Einheit (11) gleichzeitig mit dem Abschluss des Zyklus, bei dem die Folie (9) um die Produkte (3) gewickelt wird, aktiv wird.
  3. Vorrichtung nach Patentanspruch 1 oder 2, gekennzeichnet dadurch, dass die Einheit (11) zur Prüfung der Folie (9) aktiv wird, wenn sich die Versiegel- und Schneideinheit (10) von der Betriebsstellung in die Ruhestellung bewegt.
  4. Vorrichtung nach Patentanspruch 1 oder 2, gekennzeichnet dadurch, dass die Einheit (11) zur Prüfung der Folie (9) aktiv wird, wenn die Folie (9) von der Versiegel- und Schneideinheit (10) freigegeben wird.
  5. Vorrichtung nach Patentanspruch 1, bei der vier Rollen (5, 6, 5', 6') mit Folie (9, 9') vorhanden sind, die paarweise auf zwei verschiedenen Höhen arbeiten, und zwei getrennte Einheiten (10, 10') zum Versiegeln und Abschneiden der jeweiligen Folie (9, 9'), gekennzeichnet dadurch, dass sie zwei Einheiten (11, 11') zur Prüfung der Folienbänder (9, 9') umfasst, die jeweils mit den beiden Versiegel- und Schneideinheiten (10, 10') verbunden sind.
  6. Vorrichtung nach Patentanspruch 1 oder 5, bei der jede Einheit (10, 10') zum Versiegeln und Schneiden der Folie (9, 9') in zwei Hälften (12, 13) geteilt ist, die jeweils mit einer entsprechenden Antriebsschiene (14, 15) verbunden sind, um sie von der Ruhestellung in die Betriebsstellung und zurück zu bewegen, gekennzeichnet dadurch, dass die entsprechende Einheit (11, 11') zur Prüfung der Folie (9, 9') mit einer der Hälften (12, 13) verbunden ist, aus denen jede Einheit (10, 10') zum Versiegeln und Schneiden der Folie (9, 9') besteht.
  7. Vorrichtung nach irgend einem den vorstehenden Patentansprüche, gekennzeichnet dadurch, dass der Sensor (17), der die entsprechende Folie (9, 9') berührt, durch geeignete Mittel (18) an der Hälfte (12, 13) angetrieben wird, so dass sie sich zumindest zwischen einer ersten Ruhestellung, in der der Berührungssensor (17) gesenkt ist, und einer Betriebsstellung, in der der Sensor (17), wenn die Hälften (12, 13) zueinander bewegt werden, zwischen den Produkten (3) angehoben wird und das entsprechende Folienband (9, 9') um sie gewickelt wird, bewegt.
  8. Vorrichtung nach Patentanspruch 7, gekennzeichnet dadurch, dass der Sensor die Form einer Stange (17) hat und mit einem Hebel (19) verbunden ist, der Teil der Antriebsmittel (18) ist und sich frei um mindestens zwei Achsen (Z, X) drehen kann, die senkrecht zueinander stehen und eine Ebene festlegen, die parallel zur Zufuhrrichtung (D) der Produkte (3) liegt, so dass er am Anfang zu den Produkten (3) geneigt ist, in einer Anfangsposition zwischen der versiegelten Folie (9, 9') und den Produkten (3), und dann von der Folie (9, 9') weggezogen wird, wenn sich die entsprechende Hälfte (12, 13) von der Betriebsstellung in die Ruhestellung bewegt.
  9. Vorrichtung nach Patentanspruch 8, gekennzeichnet dadurch, dass die Stange (17) mit dem Hebel (19) durch eine Feder (20) verbunden ist, die die freie Drehung um die zwei Achsen (Z, X), die senkrecht zueinander stehen, mit mindestens einem Bogen erlaubt.
  10. Vorrichtung nach Patentanspruch 7 oder 8, gekennzeichnet dadurch, dass der Sensor (17) mit dem Hebel (19) verbunden ist, der seinerseits zu einer der beiden Hälften (12, 13) der entsprechenden Versiegeleinheit (10, 10') gedreht wird und von den oben erwähnten Antriebsmitteln (18) des Hebels (19) aus einer Ruhestellung, in der der Hebel (19) parallel zu der Hälfte (12, 13) steht und sich der Sensor (17) in der gesenkten Stellung befindet, in eine Betriebsstellung bewegt wird, in der der Hebel (19) in einem vorbestimmten Winkel (α) gedreht wird und sich der Sensor (17) in einer angehobenen Position, das heißt vertikal, befindet.
  11. Vorrichtung nach den Patentansprüchen 7 und 8, gekennzeichnet dadurch, dass der Mikroschalter (16) an eine Einheit (22) zur Steuerung der Vorrichtung (1) angeschlossen ist und an die Einheit (22) ein Signal (S) sendet, das anzeigt, dass die Folie (9, 9') ordnungsgemäß an den Produkten (3) angebracht wurde, wenn die Stange (17) eine vorbestimmte, abgesenkte Position erreicht.
  12. Vorrichtung nach den Patentansprüchen 7 und 8, gekennzeichnet dadurch, dass an der Stange (17) ein Element (21) zur Erkennung der Spannung der Folie (9, 9'), die um die Produkte (3) gewickelt ist, angebracht ist, wobei das Erkennelement (21) dazu bestimmt ist, die Abweichung der Stange (17) von ihrer Ruhestellung zu registrieren, das heißt von dem geringsten elektrischen Signal, das dieser Stellung entspricht, gegenüber der Betriebsstellung, in der die Stange (17) angehoben ist und ein Signal erzeugt, dessen Wert proportional zur Abweichung von der Ruhestellung ist.
  13. Vorrichtung nach Patentanspruch 12, gekennzeichnet dadurch, dass das Erkennelement (21) mit dem Mikroschalter (16) verbunden ist und zusammen mit diesem agiert, und solcherart auf die Stange (17) einwirkt, dass das erzeugte Signal eine Funktion der Neigung der Stange (17) zu den Produkten (3) ist, wenn sie von der Folie (9, 9') gezogen wird.
  14. Vorrichtung nach Patentanspruch 12, gekennzeichnet dadurch, dass die Mittel zur Erkennung der Folienspannung aus einer Kraftmessdose (21) bestehen, die mit der Stange (17) verbunden ist und zusammen mit dem Mikroschalter (16) agiert und dazu dient, dass sie die Neigung der Stange (17) zulässt, wenn die Zugkraft, die auf die Stange ausgeübt wird, größer ist als eine vorher festgelegte Gegenkraft, die von der Dose (21) selbst ausgeübt wird.
  15. Vorrichtung nach Patentanspruch 12, gekennzeichnet dadurch, dass die Mittel zur Erkennung der Folienspannung aus einem Hall-Sensor (21) bestehen, der mit der Stange (17) verbunden ist und zusammen mit dem Mikroschalter (16) agiert.
  16. Vorrichtung nach Patentanspruch 12, gekennzeichnet dadurch, dass die Mittel zur Erkennung der Folienspannung aus einem Näherungssensor (21) bestehen, der mit der Stange (17) verbunden ist und zusammen mit dem Mikroschalter (16) agiert.
  17. Vorrichtung nach Patentanspruch 10, gekennzeichnet dadurch, dass der Hebel (19) an einem seiner Enden mit einem pneumatischen Antrieb (18) verknüpft ist, der mit der Hälfte (12, 13) der Versiegeleinheit (10, 10') verbunden ist und es dem Hebel (19) ermöglicht, aus der Ruhestellung in die Betriebsstellung und umgekehrt bewegt zu werden.
EP20050425189 2004-04-02 2005-03-31 Vorrichtung zum Banderolieren von Produkten Not-in-force EP1582462B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITBO20040186 2004-04-02
ITBO20040186 ITBO20040186A1 (it) 2004-04-02 2004-04-02 Apparecchiatura per la fasciatura di prodotti

Publications (2)

Publication Number Publication Date
EP1582462A1 EP1582462A1 (de) 2005-10-05
EP1582462B1 true EP1582462B1 (de) 2007-01-17

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP20050425189 Not-in-force EP1582462B1 (de) 2004-04-02 2005-03-31 Vorrichtung zum Banderolieren von Produkten

Country Status (4)

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EP (1) EP1582462B1 (de)
DE (1) DE602005000452T2 (de)
ES (1) ES2281067T3 (de)
IT (1) ITBO20040186A1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102398692A (zh) * 2011-07-19 2012-04-04 浙江佳贝思绿色能源有限公司 电池打包机

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9272799B2 (en) 2011-10-04 2016-03-01 Signode Industrial Group Llc Sealing tool for strap
US10577137B2 (en) 2015-12-09 2020-03-03 Signode Industrial Group Llc Electrically powered combination hand-held notch-type strapping tool

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4413463A (en) * 1980-10-23 1983-11-08 Lantech, Inc. Roller stretch pass through stretching apparatus and process
US4628668A (en) * 1982-04-16 1986-12-16 Bemis Company, Inc. Unit load wrapping with controlled wrap tensioning
DE29902910U1 (de) * 1999-02-19 2000-03-30 Msk Verpackung Syst Gmbh Vorrichtung zum Banderolieren einer Packguteinheit mit einer Schrumpffolienbanderole
ITBO20020232A1 (it) * 2002-04-24 2003-10-24 Aetna Group Spa Apparecchiature per la fasciatura di gruppi di prodotti pallettizzati

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102398692A (zh) * 2011-07-19 2012-04-04 浙江佳贝思绿色能源有限公司 电池打包机

Also Published As

Publication number Publication date
ES2281067T3 (es) 2007-09-16
EP1582462A1 (de) 2005-10-05
DE602005000452T2 (de) 2007-11-15
DE602005000452D1 (de) 2007-03-08
ITBO20040186A1 (it) 2004-07-02

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