EP3341299A1 - Glue roller - Google Patents

Glue roller

Info

Publication number
EP3341299A1
EP3341299A1 EP16733484.6A EP16733484A EP3341299A1 EP 3341299 A1 EP3341299 A1 EP 3341299A1 EP 16733484 A EP16733484 A EP 16733484A EP 3341299 A1 EP3341299 A1 EP 3341299A1
Authority
EP
European Patent Office
Prior art keywords
glue roller
glue
recesses
roller according
equal
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
EP16733484.6A
Other languages
German (de)
French (fr)
Other versions
EP3341299B1 (en
Inventor
Soeren Meissner
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.)
Krones AG
Original Assignee
Krones 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 Krones AG filed Critical Krones AG
Publication of EP3341299A1 publication Critical patent/EP3341299A1/en
Application granted granted Critical
Publication of EP3341299B1 publication Critical patent/EP3341299B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65C—LABELLING OR TAGGING MACHINES, APPARATUS, OR PROCESSES
    • B65C9/00—Details of labelling machines or apparatus
    • B65C9/20—Gluing the labels or articles
    • B65C9/22—Gluing the labels or articles by wetting, e.g. by applying liquid glue or a liquid to a dry glue coating
    • B65C9/2247—Gluing the labels or articles by wetting, e.g. by applying liquid glue or a liquid to a dry glue coating using liquid rollers or bands
    • B65C9/2256—Applying the liquid on the label
    • B65C9/2265—Applying the liquid on the label continuously, i.e. an uninterrupted film
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C1/00—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating
    • B05C1/04—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length
    • B05C1/08—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length using a roller or other rotating member which contacts the work along a generating line
    • B05C1/0808—Details thereof, e.g. surface characteristics
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65C—LABELLING OR TAGGING MACHINES, APPARATUS, OR PROCESSES
    • B65C9/00—Details of labelling machines or apparatus
    • B65C9/20—Gluing the labels or articles
    • B65C9/22—Gluing the labels or articles by wetting, e.g. by applying liquid glue or a liquid to a dry glue coating
    • B65C9/2247—Gluing the labels or articles by wetting, e.g. by applying liquid glue or a liquid to a dry glue coating using liquid rollers or bands
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65C—LABELLING OR TAGGING MACHINES, APPARATUS, OR PROCESSES
    • B65C9/00—Details of labelling machines or apparatus
    • B65C2009/0071—Details of glueing devices
    • B65C2009/0075—Constructional details of glueing rollers

Definitions

  • the invention relates to a glue roller for applying glue to labels, label tapes and / or containers in a labeling device.
  • Containers are often provided with labels or films as labels, the labels being applied to the containers by means of labeling devices using glue or glue.
  • a glue roller can pick up glue and apply it to labels.
  • the surface of the glue roller is structured, for example having recesses.
  • the surface of the glue roller has a plurality of recesses each in the form of a hexagon, wherein the side walls of the hexagon based on the surface of the glue roller an inclination of 1 10 ° to 140 °, preferably 120 °.
  • the hexagonal shape in combination with the inclination of the side walls means that even larger amounts of glue are taken up by the glue roller and without Machine pollution can be dispensed on labels. Comparative tests have shown that the amount of glue (in mg / mm 2 ) can be approximately doubled in comparison to known glue rollers without increasing the contamination. It also shows that a given glue pattern on the label can be reliably generated.
  • the glue roller is preferably designed in the form of a cylinder or hollow cylinder and arranged rotatable about the cylinder axis.
  • the glue roller is usually part of a gluing unit in which glue is heated if necessary and applied in the glue to the glue roller, for example with a glue scraper.
  • the size of the glue roller depends on the application, that is, it is matched to the size of the objects to be glued.
  • the hexagonal shape of the recesses refers to the unrolled cylindrical surface of the glue roller.
  • All depressions can have the same side length and / or the same depth and / or the same inclination of the side walls. The more similar the individual wells, the smoother glue can be transferred. This is especially true when glue can be dispensed evenly on the glue roller. In addition, it is easier to arrange a large amount of depressions uniformly on the Leimwalzenober Design.
  • the side length is measured at the top edge, ie at the level of the non-recessed surface of the glue roller.
  • the glue is not uniformly possible on the glue roller, but it may also be useful to form the recesses geometrically different, for example, depending on where on the glue roller they are arranged.
  • the recesses may be arranged such that one edge of each of the recesses and one edge of each adjacent recess are arranged in parallel. Thus, a large amount of depressions can be uniformly arranged on the sizing roll surface. This may apply in particular to adjacent edges of adjacent depressions.
  • the depressions can be arranged equidistant from each other. Equidistant here refers to the distances between the centers of adjacent wells.
  • the recesses may be arranged equidistantly at a first distance along a first axis, for example circumferentially around the glue roller or along the width of the glue roller, and equidistantly at a second distance along a second axis.
  • the first and second distances may be the same, especially for regular hexagons. Alternatively, the first and second distances may be different, especially if not all sides of a hexagon are the same length.
  • the depressions can be arranged around the entire circumference of the glue roller. This allows the glue roller on its entire circumference to accommodate even large amounts of glue, and thus particularly well suited for continuous operation.
  • the depressions can be arranged over the entire width of the glue roller. This allows the glue roller to be suitable for receiving large quantities of glue over its entire width. This allows containers of different sizes to be provided with glue, especially large containers.
  • edges and / or corners of the recesses may be rounded. This may prevent sharp corners or edges from damaging the labels and may cause glue to accumulate at the corners and edges or reduce the amount of glue there.
  • the depressions may have a uniform depth apart from the sidewalls.
  • the amount of glue in the entire depression can be uniform and a good glue pattern can be made possible.
  • the side length of the recesses may each be between 0.2 mm and 0.35 mm, in particular between 0.24 mm and 0.29 mm, preferably 0.26 mm. These side lengths have shown to be a particularly advantageous size, since such a good glue pattern can be generated.
  • the depressions may have a depth of 0.04 mm to 0.125 mm, in particular from 0.04 mm to 0.06 mm, in particular from 0.045 mm to 0.055 mm, preferably 0.05 mm. These depths have been found to be particularly advantageous because so the desired high amount of glue can be transferred and a good glue pattern can be generated.
  • the distance between adjacent recesses may be between 0.4 mm and 0.8 mm, in particular between 0.5 mm and 0.7 mm, preferably at 0.6 mm.
  • the distance refers, as already mentioned above, to the distances between the centers of the depressions. This distance has proven to be particularly advantageous for the glue pattern and the transferred amount of glue. Said distance, in particular in combination with the above-mentioned side lengths, enables a suitable relationship between recesses and the remainder of the sizing roller surface (in a region in which the recesses are arranged).
  • the web width between the depressions may be between 0.07 mm and 0.13 mm, preferably 0.1 mm.
  • the web is the non-recessed glue roller surface between two adjacent recesses. The web width is thus the (possibly shortest) distance between the adjacent upper edges of two adjacent depressions. This land width has proven to be advantageous for the glue pattern and the transferred amount of glue.
  • no recesses may be arranged. This can be advantageous because then at places of the glue roller, which are not used for Beieimen, also little glue is taken up by the glue roller. This saves glue and can also reduce pollution from run-off glue.
  • the pressing surface portion may be 30% to 35%, preferably 32%.
  • Pressing surfaces are the surfaces that are not recessed and press in operation against the label or label tape to be glued or container to be glued. This proportion of pressing surface has proven to be particularly advantageous for the glue pattern and the transferred amount of glue.
  • Each inner angle of the hexagon may be greater than or equal to 100 ° and less than or equal to 150 °, in particular less than or equal to 140 ° and greater than 1 10 °, in particular less than or equal to 135 ° and greater than or equal to 1 15 °, in particular less than or equal to 130 ° and be greater than or equal to 120 °.
  • the interior angle denotes an angle that is included by adjacent sides of the polygon. The above interior angles lead to a better glue pattern.
  • Each recess may be formed so that opposite edges are parallel. This simplifies the manufacture and the arrangement of the depressions on the glue roller.
  • Each pit may be in the form of a regular hexagon.
  • all interior angles are 120 ° and all sides of the hexagon are the same length. This form is very easy to manufacture and suitable for a dense and uniform arrangement on the glue roller.
  • all interior angles are at a particularly preferred value.
  • Figure 1 is a schematic, not to scale representation of a glue roller in a labeling in plan view
  • Figure 2 is a schematic, not to scale, top view of the unrolled cylindrical surface of a glue roller according to the invention
  • Figure 3 is a schematic, not to scale section through a plane parallel to the cylinder axis of the glue roller according to the invention.
  • Figure 4 is a schematic, not to scale, plan view of wells in the
  • FIG. 1 shows a glue roller in a labeling device.
  • the labeling device 1 shown here in a simplified manner comprises, in addition to the glue roller 2, which is part of a gluing unit 3, a rotatable cylinder 4 from which a label strip 5 is unrolled, a cutting cylinder 6 on which labels are separated from the label strip by a cutting tool 7 presses against the cutting cylinder, and a transport cylinder 8, which takes over the labels from the cutting cylinder, further transported to the containers 9 and applied to this.
  • the glue roller does not have to be part of a gluing unit.
  • the labeling is purely exemplary and can be configured differently, for example, so that the glue is applied to a label tape or containers that can be brought in a suitable manner with the glue roller in contact.
  • the containers, labels or the label tape can be transported linearly or on a rotary to the glue roller.
  • the glue roller can be arranged to be movable, for example pivotable or movable, so that it can be brought into contact with the labels, containers or label tapes.
  • Figure 2 shows the unrolled surface 10 of a glue roller according to the invention in plan view with a plurality of hexagonal recesses 11.
  • the recesses are arranged with a minimum distance 12 to the edge of the cylindrical surface with respect to the width 13 of the glue roller.
  • depressions are arranged along the entire circumference 14.
  • FIG. 3 shows a section through a plane 15 parallel to the axis of rotation perpendicular to the glue roller surface.
  • the distance 16 between adjacent recesses is shown as the distance of the centers of the recesses.
  • the recesses are arranged equidistant in the direction shown, but this need not be the case.
  • the depth 17 of the recesses is shown.
  • the wells have a uniform depth, but this does not have to be the case.
  • the webs 20 are shown between the wells.
  • Figure 4 shows a detailed plan view of a surface of a glue roller according to the invention.
  • the distance 16 of the centers of adjacent recesses is shown.
  • the web width 21, a first side length 22, a second side length 23, a first inner angle 24 and a second inner angle 25 is shown.
  • the first and second side lengths are different and the first and second inner angles are different. But this does not have to be the case.
  • it can also be a regular hexagon with equal side lengths and interior angles.
  • the land width between the three recesses is the same, but this need not be the case.
  • adjacent edges of adjacent recesses are parallel here, which, however, also need not be the case.
  • the glue roller may be constructed as described above, on the order of magnitude about 400,000 to 500,000 hexagonal depressions may be arranged on a lateral surface of about 1200 cm 2 .
  • a typical density of pits (based on the cylinder area) may be about 350 / m 2 .
  • the side lengths of the edges may be, for example, 0.29 mm (for example, the first edge length 22) on two opposite sides and 0.24 mm on the remaining sides (for example, the second edge length 23).
  • the depth can be exemplified 0.05 mm and the web width 0.1 mm.
  • the angle of the side walls can be 120 ° and the pressing surface can be about 32%.
  • the interspace volume is then about 30.5 ml / m 2 .
  • the sum of the figures in the axial direction may for example be about 1000 and in the radial direction about 400 to 500.

Landscapes

  • Labeling Devices (AREA)
  • Coating Apparatus (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Machines For Manufacturing Corrugated Board In Mechanical Paper-Making Processes (AREA)

Abstract

Glue roller (2) for applying glue to labels, label strips and/or containers in a labeling device (1), the surface of the glue roller (2) having a plurality of depressions (11), each being in the shape of a hexagon. The sidewalls (18) of the hexagon have an inclination (19) of 110° to 140°, preferably 120°, in relation to the surface of the glue roller.

Description

Leimwalze  glue roller
Die Erfindung betrifft eine Leimwalze zum Auftragen von Leim auf Etiketten, Etikettenbänder und/oder Behälter in einer Etikettiervorrichtung. The invention relates to a glue roller for applying glue to labels, label tapes and / or containers in a labeling device.
Behälter werden häufig mit Etiketten oder Folien als Kennzeichnung versehen, wobei die Etiketten mittels Etikettiervorrichtungen unter Verwendung von Klebstoff bzw. Leim auf die Behälter aufgebracht werden. Dazu kann eine Leimwalze Leim aufnehmen und auf Etiketten aufbringen. Es ist auch bekannt, dass die Oberfläche der Leimwalze strukturiert ist, beispielsweise Vertiefungen aufweist. Containers are often provided with labels or films as labels, the labels being applied to the containers by means of labeling devices using glue or glue. For this purpose, a glue roller can pick up glue and apply it to labels. It is also known that the surface of the glue roller is structured, for example having recesses.
Für manche Anwendungen ist es wünschenswert eine große Menge Leim aufzubringen, damit die Etiketten sicher an den Behältern haften bleiben. Gerade bei CSD-Produkten (Carbonated Soft Drink) mit hoher Behälterausdehnung kommt es leicht zum Verlust des Etiketts. Dies kann verhindert werden, indem zum Befestigen der Etiketten größere Mengen Leim verwendet werden. For some applications, it is desirable to apply a large amount of glue so that the labels adhere securely to the containers. Especially with CSD products (Carbonated Soft Drink) with high container expansion, it is easy to lose the label. This can be prevented by using larger amounts of glue to attach the labels.
Aus dem Stand der Technik ist bekannt, zum Erhöhen der Leimmenge mit einem verstellbaren Leimschaber die Menge an Leim, die mit dem Leimschaber auf die Leimwalze aufgebracht wird, einzustellen. Es zeigt sich jedoch, dass es dadurch zu erhöhter Verschmutzung der Maschine kommen kann. Zudem gibt es keine Lösung für Maschinen mit fest montierten (nicht verstellbaren) Leimschabern. It is known from the prior art to increase the amount of glue with an adjustable glue scraper to adjust the amount of glue that is applied to the glue roller with the glue scraper. However, it turns out that this can lead to increased pollution of the machine. In addition, there is no solution for machines with fixed (not adjustable) glue scrapers.
Der Nachteil der bisher bekannten Vorrichtungen besteht also darin, dass es für Maschinen, bei denen nicht eingestellt werden kann, wie viel Leim auf die Leimwalze abgegeben wird, kein hoher Leimübertrag möglich ist, und bei Maschinen, bei denen die Leimmenge, die auf die Leimwalze abgegeben wird, erhöht werden kann, Verschmutzungen auftreten können. The disadvantage of the previously known devices is therefore that it is not possible for machines in which can not be adjusted how much glue is applied to the glue roller, no high Leimübertrag, and in machines where the amount of glue on the glue roller is discharged, soiling can occur.
Es ist also Aufgabe der Erfindung, eine Leimwalze zur Verfügung zu stellen, die unabhängig von der Art der Etikettiervorrichtung einen hohen Leimübertrag ermöglicht, ohne die Verschmutzung der Etikettiervorrichtung zu erhöhen. It is therefore an object of the invention to provide a glue roller available, which allows a high glue transfer regardless of the type of labeling without increasing the contamination of the labeling.
Diese Aufgabe wird erfindungsgemäß dadurch gelöst, dass die Oberfläche der Leimwalze mehrere Vertiefungen jeweils in Form eines Hexagons aufweist, wobei die Seitenwände des Hexagons bezogen auf die Oberfläche der Leimwalze eine Neigung von 1 10° bis 140°, bevorzugt 120°, aufweisen. This object is achieved in that the surface of the glue roller has a plurality of recesses each in the form of a hexagon, wherein the side walls of the hexagon based on the surface of the glue roller an inclination of 1 10 ° to 140 °, preferably 120 °.
Die hexagonale Form in Kombination mit der Neigung der Seitenwände führt dazu, dass auch größere Mengen Leim von der Leimwalze aufgenommen und ohne Maschinenverschmutzung auf Etiketten abgegeben werden können. In Vergleichsversuchen hat sich ergeben, dass die Leimmenge (in mg/mm2) im Vergleich zu bekannten Leimwalzen etwa verdoppelt werden kann, ohne die Verschmutzung zu erhöhen. Zudem zeigt sich, dass ein vorgegebenes Leimbild auf dem Etikett zuverlässig erzeugt werden kann. The hexagonal shape in combination with the inclination of the side walls means that even larger amounts of glue are taken up by the glue roller and without Machine pollution can be dispensed on labels. Comparative tests have shown that the amount of glue (in mg / mm 2 ) can be approximately doubled in comparison to known glue rollers without increasing the contamination. It also shows that a given glue pattern on the label can be reliably generated.
Die Leimwalze ist vorzugsweise in Form eines Zylinders oder Hohlzylinders ausgebildet und um die Zylinderachse rotierbar angeordnet. Die Leimwalze ist zumeist Teil eines Leimwerks, in dem Leim wenn nötig erhitzt und in dem Leim auf die Leimwalze aufgebracht wird, beispielsweise mit einem Leimschaber. Die Größe der Leimwalze hängt vom Anwendungsfall ab, das heißt, sie ist auf die Größe der zu beleimenden Objekte abgestimmt. The glue roller is preferably designed in the form of a cylinder or hollow cylinder and arranged rotatable about the cylinder axis. The glue roller is usually part of a gluing unit in which glue is heated if necessary and applied in the glue to the glue roller, for example with a glue scraper. The size of the glue roller depends on the application, that is, it is matched to the size of the objects to be glued.
Die hexagonale Form der Vertiefungen bezieht sich auf die abgerollte Zylinderfläche der Leimwalze. The hexagonal shape of the recesses refers to the unrolled cylindrical surface of the glue roller.
Alle Vertiefungen können die gleiche Seitenlänge und/oder die gleiche Tiefe und/oder die gleiche Neigung der Seitenwände aufweisen. Je ähnlicher sich die einzelnen Vertiefungen sind, desto gleichmäßiger kann Leim übertragen werden. Dies gilt vor allem, wenn Leim gleichmäßig auf die Leimwalze abgegeben werden kann. Außerdem ist es so einfacher, eine große Menge Vertiefungen gleichmäßig auf der Leimwalzenoberfläche anzuordnen. Die Seitenlänge wird dabei an der Oberkante, also auf Höhe der nicht-vertieften Oberfläche der Leimwalze gemessen. All depressions can have the same side length and / or the same depth and / or the same inclination of the side walls. The more similar the individual wells, the smoother glue can be transferred. This is especially true when glue can be dispensed evenly on the glue roller. In addition, it is easier to arrange a large amount of depressions uniformly on the Leimwalzenoberfläche. The side length is measured at the top edge, ie at the level of the non-recessed surface of the glue roller.
Beispielsweise in Fällen, in denen der Leimauftrag auf die Leimwalze nicht gleichmäßig möglich ist, kann es aber auch sinnvoll sein, die Vertiefungen geometrisch unterschiedlich auszubilden, beispielsweise abhängig davon, wo auf der Leimwalze sie angeordnet sind. For example, in cases where the glue is not uniformly possible on the glue roller, but it may also be useful to form the recesses geometrically different, for example, depending on where on the glue roller they are arranged.
Die Vertiefungen können derart angeordnet sein, dass jeweils eine Kante jeder der Vertiefungen und eine Kante jeder benachbarten Vertiefung parallel angeordnet sind. So kann eine große Menge an Vertiefungen gleichmäßig auf der Leimwalzenoberfläche angeordnet werden. Dies kann insbesondere für benachbarte Kanten benachbarter Vertiefungen gelten. The recesses may be arranged such that one edge of each of the recesses and one edge of each adjacent recess are arranged in parallel. Thus, a large amount of depressions can be uniformly arranged on the sizing roll surface. This may apply in particular to adjacent edges of adjacent depressions.
Die Vertiefungen können äquidistant zueinander angeordnet sein. Äquidistant bezieht sich hier auf die Abstände zwischen den Mittelpunkten benachbarter Vertiefungen. Die Vertiefungen können entlang einer ersten Achse, beispielsweise umfänglich um die Leimwalze oder entlang der Breite der Leimwalze, mit einem ersten Abstand äquidistant und entlang einer zweiten Achse mit einem zweiten Abstand äquidistant angeordnet sein. Der erste und der zweite Abstand können gleich sein, insbesondere bei regulären Hexagonen. Alternativ können der erste und der zweite Abstand unterschiedlich sein, insbesondere wenn nicht alle Seiten eines Hexagons gleich lang sind. The depressions can be arranged equidistant from each other. Equidistant here refers to the distances between the centers of adjacent wells. The recesses may be arranged equidistantly at a first distance along a first axis, for example circumferentially around the glue roller or along the width of the glue roller, and equidistantly at a second distance along a second axis. The first and second distances may be the same, especially for regular hexagons. Alternatively, the first and second distances may be different, especially if not all sides of a hexagon are the same length.
Die Vertiefungen können um den gesamten Umfang der Leimwalze angeordnet sein. Dies ermöglicht, dass die Leimwalze auf ihrem gesamten Umfang zum Aufnehmen auch großer Mengen Leim, und somit besonders gut zum kontinuierlichen Betrieb, geeignet ist. The depressions can be arranged around the entire circumference of the glue roller. This allows the glue roller on its entire circumference to accommodate even large amounts of glue, and thus particularly well suited for continuous operation.
Die Vertiefungen können über die gesamte Breite der Leimwalze angeordnet sein. Dadurch kann die Leimwalze auf ihrer gesamten Breite zum Aufnehmen großer Mengen Leim geeignet sein. Dies ermöglicht, dass Behälter verschiedener Größen mit Leim versehen werden können, besonders auch große Behälter. The depressions can be arranged over the entire width of the glue roller. This allows the glue roller to be suitable for receiving large quantities of glue over its entire width. This allows containers of different sizes to be provided with glue, especially large containers.
Die Kanten und/oder Ecken der Vertiefungen können abgerundet sein. Dies kann gegebenenfalls verhindern, dass scharfe Ecken oder Kanten die Etiketten beschädigen und dass sich an den Ecken und Kanten Leim ansammelt oder dort die Leimmenge reduziert ist. The edges and / or corners of the recesses may be rounded. This may prevent sharp corners or edges from damaging the labels and may cause glue to accumulate at the corners and edges or reduce the amount of glue there.
Die Vertiefungen können, abgesehen von den Seitenwänden, eine gleichmäßige Tiefe aufweisen. So kann die Leimmenge in der gesamten Vertiefung gleichmäßig sein und ein gutes Leimbild ermöglicht werden. The depressions may have a uniform depth apart from the sidewalls. Thus, the amount of glue in the entire depression can be uniform and a good glue pattern can be made possible.
Die Seitenlänge der Vertiefungen kann jeweils zwischen 0,2 mm und 0,35 mm, insbesondere zwischen 0,24 mm und 0,29 mm, vorzugsweise 0,26 mm betragen. Diese Seitenlängen haben sich als eine besonders vorteilhafte Größe gezeigt, da so ein gutes Leimbild erzeugt werden kann. The side length of the recesses may each be between 0.2 mm and 0.35 mm, in particular between 0.24 mm and 0.29 mm, preferably 0.26 mm. These side lengths have shown to be a particularly advantageous size, since such a good glue pattern can be generated.
Die Vertiefungen können eine Tiefe von 0,04 mm bis 0,125 mm, insbesondere von 0,04 mm bis 0,06 mm, insbesondere von 0,045 mm bis 0,055 mm, bevorzugt 0,05 mm aufweisen. Diese Tiefen haben sich als besonders vorteilhaft gezeigt, da so die gewünschte hohe Leimmenge übertragen werden kann und ein gutes Leimbild erzeugt werden kann. The depressions may have a depth of 0.04 mm to 0.125 mm, in particular from 0.04 mm to 0.06 mm, in particular from 0.045 mm to 0.055 mm, preferably 0.05 mm. These depths have been found to be particularly advantageous because so the desired high amount of glue can be transferred and a good glue pattern can be generated.
Der Abstand zwischen benachbarten Vertiefungen kann zwischen 0,4 mm und 0,8 mm, insbesondere zwischen 0,5 mm und 0,7 mm, vorzugsweise bei 0,6 mm liegen. Der Abstand bezieht sich, wie oben bereits erwähnt, auf die Abstände zwischen den Mittelpunkten der Vertiefungen. Dieser Abstand hat sich als besonders vorteilhaft für das Leimbild und die übertragene Leimmenge erwiesen. Der besagte Abstand ermöglicht, insbesondere in Kombination mit den oben genannten Seitenlängen, ein geeignetes Verhältnis zwischen Vertiefungen und der übrigen Leimwalzenoberfläche (in einem Bereich, in dem die Vertiefungen angeordnet sind). Die Stegbreite zwischen den Vertiefungen kann zwischen 0,07 mm und 0,13 mm, vorzugsweise bei 0,1 mm liegt. Der Steg ist dabei die nicht-vertiefte Leimwalzenoberfläche zwischen zwei benachbarten Vertiefungen. Die Stegbreite ist also der (gegebenenfalls kürzeste) Abstand zwischen den benachbarten oberen Kanten zweier benachbarter Vertiefungen. Diese Stegbreite hat sich als vorteilhaft für das Leimbild und die übertragene Leimmenge erwiesen. The distance between adjacent recesses may be between 0.4 mm and 0.8 mm, in particular between 0.5 mm and 0.7 mm, preferably at 0.6 mm. The distance refers, as already mentioned above, to the distances between the centers of the depressions. This distance has proven to be particularly advantageous for the glue pattern and the transferred amount of glue. Said distance, in particular in combination with the above-mentioned side lengths, enables a suitable relationship between recesses and the remainder of the sizing roller surface (in a region in which the recesses are arranged). The web width between the depressions may be between 0.07 mm and 0.13 mm, preferably 0.1 mm. The web is the non-recessed glue roller surface between two adjacent recesses. The web width is thus the (possibly shortest) distance between the adjacent upper edges of two adjacent depressions. This land width has proven to be advantageous for the glue pattern and the transferred amount of glue.
In einem Abstand von 1 cm bis 2 cm, insbesondere 1 ,5 cm, von den Seiten der Leimwalze können keine Vertiefungen angeordnet sein. Dies kann vorteilhaft sein, da dann an Stellen der Leimwalze, die nicht zum Beieimen verwendet werden, auch wenig Leim von der Leimwalze aufgenommen wird. Das spart Leim und kann zudem Verschmutzung durch herablaufenden Leim reduzieren. At a distance of 1 cm to 2 cm, in particular 1, 5 cm, from the sides of the glue roller no recesses may be arranged. This can be advantageous because then at places of the glue roller, which are not used for Beieimen, also little glue is taken up by the glue roller. This saves glue and can also reduce pollution from run-off glue.
Der Pressflächenanteil kann bei 30% bis 35%, vorzugsweise bei 32% liegen. Pressflächen sind dabei die Flächen, die nicht vertieft sind und im Betrieb gegen das zu beleimende Etikett oder Etikettenband oder den zu beleimenden Behälter drücken. Dieser Pressflächenanteil hat sich als besonders vorteilhaft für das Leimbild und die übertragene Leimmenge erwiesen. The pressing surface portion may be 30% to 35%, preferably 32%. Pressing surfaces are the surfaces that are not recessed and press in operation against the label or label tape to be glued or container to be glued. This proportion of pressing surface has proven to be particularly advantageous for the glue pattern and the transferred amount of glue.
Jeder Innenwinkel des Hexagons kann größer oder gleich 100° und kleiner oder gleich 150°, insbesondere kleiner oder gleich 140° und größer als 1 10°, insbesondere kleiner oder gleich 135° und größer oder gleich 1 15°, insbesondere kleiner oder gleich 130° und größer oder gleich 120° sein. Der Innenwinkel bezeichnet einen Winkel, der von benachbarten Polygonseiten eingeschlossen wird. Die oben genannten Innenwinkel führen zu einem besseren Leimbild. Each inner angle of the hexagon may be greater than or equal to 100 ° and less than or equal to 150 °, in particular less than or equal to 140 ° and greater than 1 10 °, in particular less than or equal to 135 ° and greater than or equal to 1 15 °, in particular less than or equal to 130 ° and be greater than or equal to 120 °. The interior angle denotes an angle that is included by adjacent sides of the polygon. The above interior angles lead to a better glue pattern.
Jede Vertiefung kann so ausgebildet sein, dass gegenüberliegende Kanten parallel verlaufen. Dies vereinfacht die Herstellung und die Anordnung der Vertiefungen auf der Leimwalze. Each recess may be formed so that opposite edges are parallel. This simplifies the manufacture and the arrangement of the depressions on the glue roller.
Jede Vertiefung kann in Form eines regulären Hexagons ausgebildet sein. In diesem Fall betragen alle Innenwinkel 120° und alle Seiten des Hexagons sind gleich lang. Diese Form ist sehr einfach in der Herstellung und geeignet zu einer dichten und gleichmäßigen Anordnung auf der Leimwalze. Außerdem liegen alle Innenwinkel bei einem besonders bevorzugten Wert. Each pit may be in the form of a regular hexagon. In this case, all interior angles are 120 ° and all sides of the hexagon are the same length. This form is very easy to manufacture and suitable for a dense and uniform arrangement on the glue roller. In addition, all interior angles are at a particularly preferred value.
Weitere Merkmale und Vorteile werden nachfolgend anhand der beispielhaften Figuren erläutert. Dabei zeigt: Further features and advantages are explained below with reference to the exemplary figures. Showing:
Figur 1 eine schematische, nicht maßstabsgetreue Darstellung einer Leimwalze in einer Etikettiervorrichtung in Draufsicht; Figur 2 eine schematische, nicht maßstabsgetreue Draufsicht auf die abgerollte Zylinderfläche einer erfindungsgemäßen Leimwalze; Figure 1 is a schematic, not to scale representation of a glue roller in a labeling in plan view; Figure 2 is a schematic, not to scale, top view of the unrolled cylindrical surface of a glue roller according to the invention;
Figur 3 ein schematischer, nicht maßstabsgetreuer Schnitt durch eine Ebene parallel zur Zylinderachse der erfindungsgemäßen Leimwalze; und Figure 3 is a schematic, not to scale section through a plane parallel to the cylinder axis of the glue roller according to the invention; and
Figur 4 eine schematische, nicht maßstabsgetreue Draufsicht auf Vertiefungen in der Figure 4 is a schematic, not to scale, plan view of wells in the
Oberfläche der Leimwalze.  Surface of the glue roller.
In Figur 1 ist eine Leimwalze in einer Etikettiervorrichtung dargestellt. FIG. 1 shows a glue roller in a labeling device.
Die hier vereinfacht dargestellte Etikettiervorrichtung 1 umfasst neben der Leimwalze 2, die hier Teil eines Leimwerks 3 ist, einen rotierbaren Zylinder 4, von dem ein Etikettenband 5 abgerollt wird, einen Schneidzylinder 6, auf dem Etiketten aus dem Etikettenband vereinzelt werden, indem ein Schneidwerkzeug 7 gegen den Schneidzylinder drückt, und einen Transportzylinder 8, der die Etiketten vom Schneidzylinder übernimmt, zu den Behältern 9 weitertransportiert und auf diese aufbringt. The labeling device 1 shown here in a simplified manner comprises, in addition to the glue roller 2, which is part of a gluing unit 3, a rotatable cylinder 4 from which a label strip 5 is unrolled, a cutting cylinder 6 on which labels are separated from the label strip by a cutting tool 7 presses against the cutting cylinder, and a transport cylinder 8, which takes over the labels from the cutting cylinder, further transported to the containers 9 and applied to this.
Es sei angemerkt, dass die Leimwalze nicht Teil eines Leimwerks sein muss. Außerdem ist die Etikettiervorrichtung rein beispielhaft und kann beliebig anders ausgebildet sein, beispielsweise so, dass der Leim auf ein Etikettenband oder auf Behälter aufgebracht wird, die auf geeignete Art mit der Leimwalze in Kontakt gebracht werden können. Dabei können die Behälter, Etiketten oder das Etikettenband linear oder auf einem Rundläufer zur Leimwalze transportiert werden. Alternativ oder zusätzlich kann die Leimwalze bewegbar, beispielsweise schwenkbar oder verfahrbar angeordnet sein, so dass sie mit den Etiketten, Behältern oder Etikettenbändern in Kontakt gebracht werden kann. It should be noted that the glue roller does not have to be part of a gluing unit. In addition, the labeling is purely exemplary and can be configured differently, for example, so that the glue is applied to a label tape or containers that can be brought in a suitable manner with the glue roller in contact. The containers, labels or the label tape can be transported linearly or on a rotary to the glue roller. Alternatively or additionally, the glue roller can be arranged to be movable, for example pivotable or movable, so that it can be brought into contact with the labels, containers or label tapes.
Figur 2 zeigt die abgerollte Oberfläche 10 einer erfindungsgemäßen Leimwalze in Draufsicht mit einer Vielzahl von hexagonalen Vertiefungen 1 1 . Hier sind die Vertiefungen mit einem minimalen Abstand 12 zum Rand der Zylinderfläche bezogen auf die Breite 13 der Leimwalze angeordnet. Außerdem sind Vertiefungen entlang des gesamten Umfangs 14 angeordnet. Figure 2 shows the unrolled surface 10 of a glue roller according to the invention in plan view with a plurality of hexagonal recesses 11. Here, the recesses are arranged with a minimum distance 12 to the edge of the cylindrical surface with respect to the width 13 of the glue roller. In addition, depressions are arranged along the entire circumference 14.
Figur 3 zeigt einen Schnitt durch eine Ebene 15 parallel zur Drehachse senkrecht zur Leimwalzenoberfläche. Hier ist der Abstand 16 zwischen benachbarten Vertiefungen als Abstand der Mittelpunkte der Vertiefungen gezeigt. Die Vertiefungen sind in der gezeigten Richtung äquidistant angeordnet, dies muss jedoch nicht der Fall sein. Außerdem ist die Tiefe 17 der Vertiefungen gezeigt. Hier haben die Vertiefungen eine gleichmäßige Tiefe, was jedoch nicht der Fall sein muss. Zu erkennen sind auch die Seitenwände 18 der Vertiefungen und ihr Neigungswinkel 19 von 120° zur Oberfläche der Leimwalze. Außerdem sind die Stege 20 zwischen den Vertiefungen gezeigt. FIG. 3 shows a section through a plane 15 parallel to the axis of rotation perpendicular to the glue roller surface. Here, the distance 16 between adjacent recesses is shown as the distance of the centers of the recesses. The recesses are arranged equidistant in the direction shown, but this need not be the case. In addition, the depth 17 of the recesses is shown. Here, the wells have a uniform depth, but this does not have to be the case. Evident are also the side walls 18 of the wells and its inclination angle 19 of 120 ° to the surface of the glue roller. In addition, the webs 20 are shown between the wells.
Figur 4 zeigt eine detaillierte Draufsicht auf eine Oberfläche einer erfindungsgemäßen Leimwalze. Hier ist ebenfalls der Abstand 16 der Mittelpunkte benachbarter Vertiefungen gezeigt. Außerdem ist die Stegbreite 21 , eine erste Seitenlänge 22, eine zweite Seitenlänge 23, ein erster Innenwinkel 24 und ein zweiter Innenwinkel 25 gezeigt. In diesem Beispiel sind die erste und die zweite Seitenlänge unterschiedlich und der erste und der zweite Innenwinkel sind unterschiedlich. Dies muss aber nicht der Fall sein. Es kann sich beispielsweise auch um ein reguläres Hexagon mit gleichen Seitenlängen und Innenwinkeln handeln. In diesem Beispiel ist die Stegbreite zwischen den drei Vertiefungen gleich, dies muss jedoch nicht der Fall sein. Außerdem sind hier benachbarte Kanten benachbarter Vertiefungen parallel, was jedoch ebenfalls nicht der Fall sein muss. Figure 4 shows a detailed plan view of a surface of a glue roller according to the invention. Here also the distance 16 of the centers of adjacent recesses is shown. In addition, the web width 21, a first side length 22, a second side length 23, a first inner angle 24 and a second inner angle 25 is shown. In this example, the first and second side lengths are different and the first and second inner angles are different. But this does not have to be the case. For example, it can also be a regular hexagon with equal side lengths and interior angles. In this example, the land width between the three recesses is the same, but this need not be the case. In addition, adjacent edges of adjacent recesses are parallel here, which, however, also need not be the case.
In einer beispielhaften Ausführungsform in der die Leimwalze wie oben beschrieben ausgeführt sein kann, können größenordnungsmäßig etwa 400000 bis 500000 hexagonale Vertiefungen auf einer Mantelfläche von etwa 1200 cm2 angeordnet sein. Insbesondere kann eine typische Dichte von Vertiefungen (bezogen auf die Zylinderfläche) bei etwa 350/m2 liegen. Die Seitenlänge der Kanten können beispielsweise an zwei gegenüberliegenden Seiten 0,29 mm (beispielsweise die erste Kantenlänge 22) und an den übrigen Seiten 0,24 mm (beispielsweise die zweite Kantenlänge 23) betragen. Die Tiefe kann dabei beispielhaft 0,05 mm betragen und die Stegbreite 0,1 mm. Der Winkel der Seitenwände kann 120° betragen und die Pressfläche kann bei etwa 32% liegen. Das Zwischenraumvolumen liegt dann bei etwa 30,5 ml/m2. Die Summe der Figuren in axialer Richtung kann beispielsweise etwa 1000 sein und in radialer Richtung etwa 400 bis 500. In an exemplary embodiment in which the glue roller may be constructed as described above, on the order of magnitude about 400,000 to 500,000 hexagonal depressions may be arranged on a lateral surface of about 1200 cm 2 . In particular, a typical density of pits (based on the cylinder area) may be about 350 / m 2 . The side lengths of the edges may be, for example, 0.29 mm (for example, the first edge length 22) on two opposite sides and 0.24 mm on the remaining sides (for example, the second edge length 23). The depth can be exemplified 0.05 mm and the web width 0.1 mm. The angle of the side walls can be 120 ° and the pressing surface can be about 32%. The interspace volume is then about 30.5 ml / m 2 . The sum of the figures in the axial direction may for example be about 1000 and in the radial direction about 400 to 500.
Es versteht sich, dass in den zuvor beschriebenen Ausführungsbeispielen genannte Merkmale nicht auf diese speziellen Kombinationen beschränkt sind und auch in beliebigen anderen Kombinationen möglich sind. It is understood that in the embodiments described above mentioned features are not limited to these specific combinations and are also possible in any other combinations.

Claims

Patentansprüche claims
1. Leimwalze (2) zum Auftragen von Leim auf Etiketten, Etikettenbänder und/oder Behälter in einer Etikettiervorrichtung (1 ), wobei die Oberfläche der Leimwalze (2) mehrere Vertiefungen (1 1 ) jeweils in Form eines Hexagons aufweist und wobei die Seitenwände (18) des Hexagons bezogen auf die Oberfläche der Leimwalze (2) eine Neigung von 1 10° bis 140 °, bevorzugt 120°, aufweisen. 1. glue roller (2) for applying glue to labels, label tapes and / or containers in a labeling device (1), wherein the surface of the glue roller (2) has a plurality of recesses (1 1) each in the form of a hexagon and wherein the side walls ( 18) of the hexagon with respect to the surface of the glue roller (2) has an inclination of 1 10 ° to 140 °, preferably 120 °.
2. Leimwalze nach Anspruch 1 , wobei alle Vertiefungen die gleiche Seitenlänge (22, 23) und/oder die gleiche Tiefe (17) und/oder die gleiche Neigung (19) der Seitenwände (18) aufweisen. 2. glue roller according to claim 1, wherein all depressions have the same side length (22, 23) and / or the same depth (17) and / or the same inclination (19) of the side walls (18).
3. Leimwalze nach Anspruch 1 oder 2, wobei die Vertiefungen (1 1 ) derart angeordnet sind, dass jeweils eine Kante jeder der Vertiefungen (1 1 ) und eine Kante jeder benachbarten Vertiefung (1 1 ) parallel angeordnet sind. 3. glue roller according to claim 1 or 2, wherein the recesses (1 1) are arranged such that in each case an edge of each of the recesses (1 1) and an edge of each adjacent recess (1 1) are arranged in parallel.
4. Leimwalze nach einem der vorangegangenen Ansprüche, wobei die Vertiefungen (1 1 ) um den gesamten Umfang (14) der Leimwalze (2) angeordnet sind. 4. glue roller according to one of the preceding claims, wherein the recesses (1 1) around the entire circumference (14) of the glue roller (2) are arranged.
5. Leimwalze nach einem der vorangegangenen Ansprüche, wobei die Vertiefungen (1 1 ) über die gesamte Breite (13) der Leimwalze (2) angeordnet sind. 5. glue roller according to one of the preceding claims, wherein the recesses (1 1) over the entire width (13) of the glue roller (2) are arranged.
6. Leimwalze nach einem der vorangegangenen Ansprüche, wobei die Vertiefungen (1 1 ), abgesehen von den Seitenwänden (18), eine gleichmäßige Tiefe (17) aufweisen. 6. glue roller according to one of the preceding claims, wherein the recesses (1 1), apart from the side walls (18), a uniform depth (17).
7. Leimwalze nach einem der vorangegangen Ansprüche, wobei die Seitenlänge (22, 23) der Vertiefungen jeweils zwischen 0,2 und 0,35 mm, insbesondere zwischen 0,24 mm und 0,29 mm, vorzugsweise 0,26 mm beträgt. 7. glue roller according to one of the preceding claims, wherein the side length (22, 23) of the recesses in each case between 0.2 and 0.35 mm, in particular between 0.24 mm and 0.29 mm, preferably 0.26 mm.
8. Leimwalze nach einem der vorangegangenen Ansprüche, wobei die Vertiefungen eine Tiefe (17) von 0,04 mm bis 0,125 mm, insbesondere von 0,04 mm bis 0,06 mm, insbesondere von 0,045 mm bis 0,055 mm, bevorzugt 0,05 mm aufweisen. 8. glue roller according to one of the preceding claims, wherein the recesses have a depth (17) of 0.04 mm to 0.125 mm, in particular from 0.04 mm to 0.06 mm, in particular from 0.045 mm to 0.055 mm, preferably 0.05 mm have.
9. Leimwalze nach einem der vorangegangenen Ansprüche, wobei der Abstand (16) zwischen benachbarten Vertiefungen (1 1 ) zwischen 0,4 mm und 0,8 mm, insbesondere zwischen 0,5 mm und 0,7 mm, vorzugsweise bei 0,6 mm liegt. 9. glue roller according to one of the preceding claims, wherein the distance (16) between adjacent recesses (1 1) between 0.4 mm and 0.8 mm, in particular between 0.5 mm and 0.7 mm, preferably at 0.6 mm is located.
10. Leimwalze nach einem der vorangegangenen Ansprüche, wobei die Stegbreite (21 ) zwischen den Vertiefungen (1 1 ) zwischen 0,07 mm und 0,13 mm, vorzugsweise bei 0,1 mm liegt. 10. glue roller according to one of the preceding claims, wherein the web width (21) between the recesses (1 1) is between 0.07 mm and 0.13 mm, preferably 0.1 mm.
1 1 . Leimwalze nach einem der vorangegangen Ansprüche, wobei in einem Abstand (12) von 1 cm bis 2 cm, insbesondere 1 ,5 cm, von den Seiten der Leimwalze keine Vertiefungen angeordnet sind. 1 1. Glue roller according to one of the preceding claims, wherein at a distance (12) of 1 cm to 2 cm, in particular 1, 5 cm, no recesses are arranged from the sides of the glue roller.
12. Leimwalze nach einem der vorangegangenen Ansprüche, wobei der Pressflächenanteil bei 30% bis 35%, vorzugsweise bei 32% liegt. 12. glue roller according to one of the preceding claims, wherein the pressing surface portion is 30% to 35%, preferably 32%.
13. Leimwalze nach einem der vorangegangenen Ansprüche, wobei jeder Innenwinkel (24, 25) des Hexagons größer oder gleich 100° und kleiner oder gleich 150°, insbesondere kleiner oder gleich 140° und größer als 1 10°, insbesondere kleiner oder gleich 135° und größer oder gleich 1 15°, insbesondere kleiner oder gleich 130° und größer oder gleich 120° ist. 13. glue roller according to one of the preceding claims, wherein each inner angle (24, 25) of the hexagon greater than or equal to 100 ° and less than or equal to 150 °, in particular less than or equal to 140 ° and greater than 1 10 °, in particular less than or equal to 135 ° and greater than or equal to 1 15 °, in particular less than or equal to 130 ° and greater than or equal to 120 °.
14. Leimwalze nach einem der vorangegangenen Ansprüche, wobei jede Vertiefung (1 1 ) so ausgebildet ist, dass gegenüberliegende Kanten parallel verlaufen. 14. glue roller according to one of the preceding claims, wherein each recess (1 1) is formed so that opposite edges are parallel.
15. Leimwalze nach einem der vorangegangenen Ansprüche, wobei jede Vertiefung (1 1 ) in Form eines regulären Hexagons ausgebildet ist. 15. glue roller according to one of the preceding claims, wherein each recess (1 1) is formed in the form of a regular hexagon.
EP16733484.6A 2015-08-25 2016-06-28 Glue roller Active EP3341299B1 (en)

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DE202015104501.8U DE202015104501U1 (en) 2015-08-25 2015-08-25 glue roller
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WO2020156785A1 (en) * 2019-01-29 2020-08-06 Sidel Participations Glue application device for a labeling unit
CN111842003A (en) * 2020-03-25 2020-10-30 杭州星华反光材料股份有限公司 Gluing device and gluing method for large-pattern fancy reflective patterns

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