EP2036712B1 - Dispositif de gaufrage rotatif et procédé de gaufrage - Google Patents

Dispositif de gaufrage rotatif et procédé de gaufrage Download PDF

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Publication number
EP2036712B1
EP2036712B1 EP08105206.0A EP08105206A EP2036712B1 EP 2036712 B1 EP2036712 B1 EP 2036712B1 EP 08105206 A EP08105206 A EP 08105206A EP 2036712 B1 EP2036712 B1 EP 2036712B1
Authority
EP
European Patent Office
Prior art keywords
embossing
male
rotary
tool
shaft
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.)
Active
Application number
EP08105206.0A
Other languages
German (de)
English (en)
Other versions
EP2036712A3 (fr
EP2036712A2 (fr
Inventor
Erich Klaßen
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.)
Masterwork Machinery Co Ltd
Original Assignee
Masterwork Machinery Co Ltd
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 Masterwork Machinery Co Ltd filed Critical Masterwork Machinery Co Ltd
Publication of EP2036712A2 publication Critical patent/EP2036712A2/fr
Publication of EP2036712A3 publication Critical patent/EP2036712A3/fr
Application granted granted Critical
Publication of EP2036712B1 publication Critical patent/EP2036712B1/fr
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F—MECHANICAL WORKING OR DEFORMATION OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F1/00—Mechanical deformation without removing material, e.g. in combination with laminating
    • B31F1/07—Embossing, i.e. producing impressions formed by locally deep-drawing, e.g. using rolls provided with complementary profiles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B50/00—Making rigid or semi-rigid containers, e.g. boxes or cartons
    • B31B50/25—Surface scoring
    • B31B50/256—Surface scoring using tools mounted on a drum
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B50/00—Making rigid or semi-rigid containers, e.g. boxes or cartons
    • B31B50/74—Auxiliary operations
    • B31B50/88—Printing; Embossing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F—MECHANICAL WORKING OR DEFORMATION OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F2201/00—Mechanical deformation of paper or cardboard without removing material
    • B31F2201/07—Embossing
    • B31F2201/0707—Embossing by tools working continuously
    • B31F2201/0715—The tools being rollers
    • B31F2201/0753—Roller supporting, positioning, driving means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F—MECHANICAL WORKING OR DEFORMATION OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F2201/00—Mechanical deformation of paper or cardboard without removing material
    • B31F2201/07—Embossing
    • B31F2201/0779—Control

Definitions

  • the invention relates to a rotary embossing device according to the preamble of claim 1. Also disclosed is a method for introducing embossing in folding box blanks and a folding box gluing machine with a rotary embossing device.
  • Folding cartons are cardboard or corrugated board packaging, and to a lesser extent plastic, which are glued at one or more points during the folding process, depending on the design. They are usually produced from a blank. The blanks are usually punched out on a sheet punch. The blank must be glued at least at one edge. The folded boxes come out of the carton gluer in the flat state. The placement and filling of the box can be done by machine or manually.
  • the embossing of braille is carried out either during the punching process in the sheet punch in the production of blanks.
  • this is expensive because a punching sheet several benefits, ie blanks contains and for each benefit a pair of tools consisting of die and male must be provided.
  • rotary embossing devices with two rotating embossing tools are used, which may for example be part of a Faltschachtelklebemaschine.
  • such rotary embossing devices have a common drive for both rotary tools.
  • the rotary tools To the embossment in the right position on the To be able to apply folded carton blank, the rotary tools must be synchronized relative to the folding carton blank.
  • the EP 1 447 211 A2 shows a device for impressing transverse grooves in cardboard. To make a groove both sides of the cardboard are deformed by rotating tools. The synchronization of the two rotary tools is done permanently by electronic coupling of the drive means and / or by means of spur gears, which are rotatably connected to the rotary tools. Such an arrangement transferred to a rotary embossing device does not contribute to the solution of the problems, since here too the moment of inertia of rotary tools and drives is very large.
  • the EP 1 537 920 A1 shows an apparatus for cutting, creasing and embossing sheet material, such as cardboard, with two rollers.
  • the rollers are each driven by a separate electric motor.
  • a control unit causes the synchronization of the rotating rollers.
  • the two rollers can continue to be moved along a vertical guide by means of linear actuators. This serves to regulate the distance between the rolls and thus the adaptation to the product thickness.
  • such a device can not be used for embossing braille, since the purely electronic synchronization of the two rollers does not achieve the required accuracy for embossing braille.
  • a device for dimpling endless strip material see Fig. 1 .
  • a metal sheet is provided with a variety of small imprints with dimensions in the millimeter range.
  • the dulled sheet metal can be cut to size and processed into cooler tubes.
  • the apparatus shown for dimpling rotate four tools, namely the central roller 101 and three lunar rollers 102.
  • the rollers are each driven by a separate servo motor 103.
  • the endless belt material 105 wraps around the central roller and is conveyed by it through the device.
  • an additional rubber roller can increase the contact pressure of the strip material 105 on the central roller 101.
  • the central roller 101 On the surface of the central roller 101 is the die for the dimple embossing.
  • the associated stamps are mounted on the lunar rollers 102.
  • the lunar rollers 102 are characterized by a cross-sectionally crescent-shaped shape and are each arranged offset around the central roller 101. In the region of their crescent-shaped segments, the lunar rollers 102 roll on the central roller 101.
  • the central roll 101 and the lunar rolls 102 each have a ring gear 104, wherein the ring gears 104 of the central roll 101 are engaged with a respective lunar roll 102 during dimpling. This ensures a synchronization of punches and dies.
  • a disadvantage of such a device is the high manufacturing complexity in the production of lunar rollers.
  • EP 1 820 632 A1 discloses an embossing device having the features in the preamble of present claim 1.
  • EP 1 145 791 A1 shows a conventional rotary cutter.
  • the object of the present invention is therefore to describe a rotary embossing device for introducing embossing, in particular braille, whereby the disadvantages of the prior art are eliminated, a high-precision embossing is made possible and a high production output is achieved.
  • a rotary embossing device has two rotating embossing tools, a male and a female, for the introduction of imprints, in particular braille, in folding box blanks.
  • Die and male each have their own rotary drive, which can be configured for example as a servomotor.
  • a first embossing tool unit comprises the male and a first gear and is rotatably connected to a male shaft.
  • the male shaft is height adjustable and can be moved by means of an actuator.
  • a second embossing tool unit comprises the die and a second gear and is rotatably mounted on a die shaft. The rotation of the second embossing tool unit on the die shaft is prevented up to a limit torque by a locking device.
  • Patrizenwelle and Patrizenwelle are arranged parallel to each other.
  • the male is lowered and the gears of the first and second embossing tool units interlock. This synchronizes the motion of the male and female molds. Ie. the speeds of male and female are matched and male and female are positioned relative to each other.
  • the actuator is a piezoactuator.
  • the rotary embossing device has two rotating embossing tools, namely a die and a male, for the introduction of embossments, in particular Braille, in folding box blanks.
  • Die and male each have their own rotary drive.
  • the male part and a first coupling half are rotatably mounted on a Patrizenwelle.
  • a second coupling half and a first gear are mounted on an intermediate shaft, wherein the male shaft and the intermediate shaft are aligned.
  • An embossing tool unit comprising the die and a second gear is rotatably mounted on a Patrizenwelle. The rotation of the embossing tool unit on the shaft is prevented up to a limit torque by a locking device.
  • the male shaft and the female shaft are arranged parallel to each other. If the two coupling halves, for example, with spur gears, coupled, so first and second gear mesh. Immediately before the embossing process begins, the coupling takes place and the male and female parts are synchronized.
  • the two aforementioned variants of the rotary embossing device have in common that the embossing tools are mechanically coupled only during the embossing process.
  • the time of the embossing process can thus also be referred to as the synchronous phase.
  • the asynchronous phase can in inventive embodiment of the Rotations memorige
  • the rotation tools are set in an advantageous manner relative to the embossing position on the Faltschachtelzuêtites.
  • the locking device has spring assemblies for applying a frictional force between embossing tool unit and die shaft.
  • the die shaft is designed as a hollow shaft.
  • the hollow shaft has a compressed air connection.
  • the hollow shaft has openings. This makes it possible that when a compressed air at the compressed air connection of the hollow shaft blow through the recesses in the die and the die can be cleaned with it.
  • the die has an encircling hole pattern which is independent of the embossing to be introduced in the folding box blanks. Therefore, it is sufficient if the die is displaced relative to the male by a maximum of one hole spacing and the punch of the male can dive into the holes of the die. The displaceability of the die is ensured by the rotatable mounting of the second embossing tool unit on the male shaft.
  • the die driven by a die rotation drive, is in constant rotation.
  • the speed of the die corresponds to the speed of the folding carton blanks which are fed to the rotary embossing device.
  • the male is driven by a Patrizenrotationsantrieb and rotated. In order to position the male part relative to the embossing position of a folding box blank, the male part is correspondingly accelerated or decelerated.
  • the speed of the patrice is adapted to the die so that die, patrix and Faltschachtelzuites have the same speed.
  • the male and female shafts are mechanically coupled by means of sprockets. The intermeshing of the sprockets synchronizes the male and female molds and sets the position of the male and female molds relative to one another. After reaching the synchronous run of the die and the male part, the stamping process of the folding carton blank begins.
  • the quality of the imprints can be checked.
  • the rotary embossing device has a counter with a computer.
  • Each folding carton passing through the device is detected and counted by means of a sensor, for example a light barrier.
  • Each revolution of the male drive is also counted.
  • the two sums are compared by the computer.
  • a message is sent to the machine operator, as embossing errors are to be expected.
  • it can be checked whether the embossing has been applied to the correct place on the carton.
  • the time at which the male shaft is lowered or the male shaft and the intermediate shaft are coupled also reported to the computer. This is compared with a delayed, reported by the sensor time, which corresponds to the passage start of Faltschachtelzuiteses by the embossing tools. In the event of deviations, a message is sent to the machine operator, as embossing errors are to be expected.
  • Fig. 2 shows a Faltschachtelklebemaschine 1 with a rotary embossing device 10 according to the invention.
  • Faltschachtelzuitese 2 are transported by a feeder in the transport direction T through the Faltschachtelklebemaschine 1 to a boom.
  • the folding carton blanks 2 also pass through the rotary embossing device 10.
  • This has a male part 11 and a die 12 for introducing embossments into the folding carton blanks 2.
  • the folded-carton blanks 2 are transported at the speed vF.
  • the male part 11 has the speed vP.
  • a compressed air generator 3 which is connected to the compressed air connection 25 (not shown) of the male shaft 14 (not shown) of the die 12.
  • FIG. 3 shows a useful for understanding the invention example of a rotary embossing device 10 with an actuator 21.
  • a first embossing tool unit comprises the male part 11 and a first gear 15.
  • This embossing tool unit 11, 15 is rotatably mounted on a Patrizenwelle 13.
  • the male shaft 13 is driven by a rotary drive 17.
  • an actuator 21 can be the Patrizenwelle 13th Adjust in height in the direction of movement a.
  • the distance between the male shaft 13 and the male shaft 14 can be varied.
  • On the die shaft 14 is a second embossing tool unit, consisting of die 12 and a second gear 16, rotatably mounted.
  • the second embossing tool unit 12, 16 has a locking device (not shown), which prevents the rotation of the unit 12, 16 relative to the Patrizenwelle 14 to a limit torque.
  • the Patrizenwelle 14 is designed by a rotary drive 18.
  • the Patrizenwelle 14 is designed as a hollow shaft and has at one end a compressed air connection 25 by a compressed air generator 3 (not shown) provided compressed air of the female shaft 14, flows through this and escapes in the area Die 12. This will blow through the holes in the die 12 and clean it of dirt.
  • the male shaft 13 is lowered in the direction of movement a, so that first gear 15 and second gear 16 engage with each other.
  • the male part 11 and the female part 12 are synchronized during embossing.
  • a folding box blank 2 to be stamped.
  • the male shaft 13 is raised again in the direction of movement a by the actuator 21.
  • Fig. 4 shows an embodiment of a rotary embossing device 10 according to the invention with a coupling 22, 23.
  • a male part 11 and a first coupling half 22 are rotatably connected to the male shaft 13.
  • the male shaft 13 is driven by a rotary drive 17.
  • a second coupling half 23 and a first gear 15 are rotatably connected to an intermediate shaft 24.
  • Patrizenwelle 13 and intermediate shaft 24 are aligned.
  • the coupling halves 22, 23 each have an end toothing and can be coupled by a coupling movement b.
  • On the die shaft 14 is a stamping tool unit consisting of die 12 and second gear 16, rotatably mounted.
  • the rotation of the embossing tool unit 12, 16 relative to the male shaft 14 is also prevented in this embodiment by a locking device to a limit torque.
  • the male shaft 14 is driven by a rotary drive 18.
  • the two coupling halves 22 and 23 are coupled together by the intermediate shaft 24 by a coupling movement b in the direction of the die 11th is moved.
  • the male 11 and female 12 are thereby synchronized during embossing.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Making Paper Articles (AREA)

Claims (4)

  1. Dispositif d'estampage ou de gaufrage rotatif (10) comprenant deux outils d'estampage ou de gaufrage en rotation, un poinçon (11) et une matrice (12) pour la réalisation d'estampages ou de gaufrages, notamment une écriture tactile à l'usage des personnes aveugles ou malvoyantes ou écriture Braille, dans des flans découpés de boites pliantes (2), dispositif
    dans lequel un arbre de poinçon (13) et un arbre de matrice (14) sont agencés parallèlement l'un par rapport à l'autre,
    caractérisé
    en ce que les outils d'estampage (11, 12) comportent chacun leur propre entraînement en rotation (17, 18), et en ce que les outils d'estampage (11, 12) ne sont couplés mécaniquement que pendant l'opération d'estampage,
    en ce que le poinçon (11) et une première moitié d'accouplement (22) sont placés sur l'arbre de poinçon (13),
    en ce qu'une deuxième moitié d'accouplement (23) et une première roue dentée (15) sont placées sur un arbre intermédiaire (24), l'arbre de poinçon (13) et l'arbre intermédiaire (24) étant mutuellement alignés,
    en ce qu'une unité d'outil d'estampage (12, 16), comprenant la matrice (12) et une deuxième roue dentée (16), est montée rotative sur l'arbre de matrice (14), la rotation relative étant empêchée par un dispositif de verrouillage jusqu'à un couple limite, et
    en ce que pendant l'opération d'estampage, les moitiés d'accouplement (22, 23) sont couplées l'une à l'autre et les roues dentées (15, 16) engrènent mutuellement, ce qui assure la synchronisation du poinçon (11) et de la matrice (12).
  2. Dispositif de gaufrage ou d'estampage rotatif selon la revendication 1, caractérisé en ce que le dispositif de verrouillage comprend des empilements de ressorts pour l'application d'une force de friction entre l'unité d'outil d'estampage (12, 16) et l'arbre de matrice (14).
  3. Dispositif de gaufrage ou d'estampage rotatif selon la revendication 1 ou la revendication 2, caractérisé en ce que concernant l'arbre de matrice (14), il s'agit d'un arbre creux, celui-ci disposant d'un raccord de branchement d'air comprimé (25) à l'extrémité d'arbre et d'ouvertures dans la zone de la matrice (12), de l'air comprimé pouvant ainsi être soufflé à travers des évidements dans la matrice (12).
  4. Machine de collage de boites pliantes (1) comprenant un dispositif d'estampage ou de gaufrage rotatif (10) selon l'une des revendications 1 à 3.
EP08105206.0A 2007-09-17 2008-09-02 Dispositif de gaufrage rotatif et procédé de gaufrage Active EP2036712B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102007044217A DE102007044217A1 (de) 2007-09-17 2007-09-17 Rotationsprägeeinrichtung und Prägeverfahren

Publications (3)

Publication Number Publication Date
EP2036712A2 EP2036712A2 (fr) 2009-03-18
EP2036712A3 EP2036712A3 (fr) 2015-02-18
EP2036712B1 true EP2036712B1 (fr) 2016-08-10

Family

ID=40210435

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08105206.0A Active EP2036712B1 (fr) 2007-09-17 2008-09-02 Dispositif de gaufrage rotatif et procédé de gaufrage

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EP (1) EP2036712B1 (fr)
DE (1) DE102007044217A1 (fr)
ES (1) ES2590760T3 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB0817509D0 (en) * 2008-09-24 2008-10-29 Chesapeake Plc Rotary embossing
DE102010036011A1 (de) 2010-08-31 2012-03-01 Heidelberger Druckmaschinen Ag Braillehülse
DE102011116294A1 (de) 2011-10-18 2013-04-18 Heidelberger Druckmaschinen Ag Verfahren zum Betreiben einer Vorrichtung zum Prägen
CN102514031B (zh) * 2011-12-31 2013-10-23 广东万联包装机械有限公司 一种纵切机的压线轮驱动装置
CN103587148A (zh) * 2013-11-27 2014-02-19 邱浩 一种纸张压纹机的压模装置

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1145791B1 (fr) * 1999-06-04 2004-02-04 Mitsubishi Heavy Industries, Ltd. Cisaille volante a tambour rotatif
NL1024915C2 (nl) 2003-12-01 2005-06-06 Jean Henry Robert Madern Inrichting voor het aanbrengen van een snede, ril en dergelijke, omvattende een plaatvormig stelsel.
DE10306210A1 (de) 2003-02-13 2004-08-26 Hermann Hötten Maschinenbau GmbH Verfahren und Vorrichtung zur beidseitigen Querrillung von Endlosbahnen
DE202005017869U1 (de) * 2005-11-16 2006-07-13 Rosas Wolf, David Einzelnutzen Anleger zum Prägen von Faltschachteln
DK176635B1 (da) * 2006-02-21 2008-12-15 Bent Christensen Holding Aps Fremgangsmåde til fremstlling af et emballageemne

Also Published As

Publication number Publication date
EP2036712A3 (fr) 2015-02-18
EP2036712A2 (fr) 2009-03-18
DE102007044217A1 (de) 2009-03-19
ES2590760T3 (es) 2016-11-23

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