EP0698454A1 - Procédé et dispositif ainsi que poinçon de découpe pour la réalisation de perforations de déchirement sur des produits en carton ondulé - Google Patents

Procédé et dispositif ainsi que poinçon de découpe pour la réalisation de perforations de déchirement sur des produits en carton ondulé Download PDF

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Publication number
EP0698454A1
EP0698454A1 EP95109521A EP95109521A EP0698454A1 EP 0698454 A1 EP0698454 A1 EP 0698454A1 EP 95109521 A EP95109521 A EP 95109521A EP 95109521 A EP95109521 A EP 95109521A EP 0698454 A1 EP0698454 A1 EP 0698454A1
Authority
EP
European Patent Office
Prior art keywords
cutting
cutting edges
corrugated cardboard
line
punching
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.)
Withdrawn
Application number
EP95109521A
Other languages
German (de)
English (en)
Inventor
Armin Höllwarth
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.)
Seyfert Wellpappe & Co GmbH
Original Assignee
Seyfert Wellpappe & Co GmbH
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 Seyfert Wellpappe & Co GmbH filed Critical Seyfert Wellpappe & Co GmbH
Publication of EP0698454A1 publication Critical patent/EP0698454A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D1/00—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
    • B26D1/0006—Cutting members therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D3/00—Cutting work characterised by the nature of the cut made; Apparatus therefor
    • B26D3/08—Making a superficial cut in the surface of the work without removal of material, e.g. scoring, incising
    • B26D3/085—On sheet material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
    • B26F1/00—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor
    • B26F1/18—Perforating by slitting, i.e. forming cuts closed at their ends without removal of material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D1/00—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
    • B26D1/0006—Cutting members therefor
    • B26D2001/006—Cutting members therefor the cutting blade having a special shape, e.g. a special outline, serrations

Definitions

  • the invention relates to a method for producing perforation lines in corrugated cardboard, in which with at least one punching knife which can be brought into engagement with the corrugated cardboard and which has individual cutting edges which take a predeterminable distance from one another and whose cutting edges are arranged along a first cutting line, the corrugated cardboard along continuous, spaced apart separation points is severed.
  • a perforation line is generated in the corrugated cardboard material which has cut lines at defined intervals which completely cut through the corrugated cardboard.
  • the corrugated cardboard can easily be bent or folded over along the perforation lines to form transport containers, even if the corrugated cardboard material is made stronger.
  • the addressed transport container is to be opened along a relevant perforation line by tearing open, for example a lid part of the container large opening forces are required for this and often there is a lateral tearing of the corrugated cardboard at the connection points of the corrugated cardboard material along the perforation line, which makes the opening process difficult or even impossible if, for example, part of the cover tears off.
  • the connecting material cross-section is very small compared to the perforation line mentioned at the beginning and is therefore weakened for a separation of the material, which reduces the tear forces, there are still obstacles when opening the packaging and an unclean tear-open edge due to the remaining material cross-section unsightly appearance also brings with it the already mentioned risk of injury. Since the cutting edges of the punching knife used in the manufacturing process are arranged with their pre-bent ends outside the other cutting or punching plane, the same often breaks or kinks, which renders the entire device unusable for the manufacturing process, which interferes with the perforation line production and therefore the process is interrupted.
  • the invention has for its object to provide an inexpensive method for producing perforation lines in corrugated cardboard, which does not have the disadvantages described above, in particular allows a favorable tearing process of the corrugated cardboard material while avoiding any risk of injury.
  • a corresponding object is achieved by a method having the features of claim 1.
  • a corrugated cardboard product can be produced in such a process, which, as a container or packaging, can be easily opened along the perforation line thus created with very low opening forces, a clean tear-off edge being created along the perforation line that is so smooth that one There is no longer any risk of injury.
  • a corrugated cardboard material in this way, safe storage of goods in the corrugated cardboard products is ensured in the closed state, that is to say when the perforation is not open.
  • the respective punching knife is arranged in a punching tool which can be moved up and down between spring elements which hold down the corrugated cardboard as a punching sheet on a punching plate for the perforation process.
  • the corrugated cardboard material that can be transported through the device can be provided in this way in large quantities and automatically with the novel perforation line according to the manufacturing process.
  • the first and the second cutting line run parallel to one another and the further cutting edges are longer in the direction of the cutting line than the cutting edges and are arranged between them.
  • the scribe line produced along the one cutting line compared to the cutting line made along the other cutting line longer.
  • the cutting lines are arranged in a straight line or following a predeterminable curve shape which corresponds to the perforation line to be produced.
  • perforation lines or tear-open perforations can be produced that do not need to run in a straight line, but rather have an arc or some other curved contour in the corrugated cardboard plane, along which the one corrugated cardboard part can then be separated from the adjacent opposite corrugated cardboard parts.
  • this has a curvature with its cutting edges in the punching direction such that only a part of the cutting edges is in engagement with the corrugated cardboard when the punching knife rolls off to produce the perforation line.
  • the respective cutting edge has at least one cutting surface and the cutting surfaces of the further cutting edges open into the surroundings between the cutting surfaces of the individual cutting edges and above their cutting edges. Because of this configuration, the respective cutting edge of the punching knife can be produced inexpensively using a correspondingly designed grinding machine, which in turn makes the manufacturing process inexpensive, since the punching knife representing a wearing part must be replaced with a new one from time to time.
  • the cutting surfaces, at least part of the cutting edges, run towards the cutting edges in a roof-like manner and / or the other part of the cutting edges has only one cutting surface each, which coincides with the cutting surface of the respectively adjacent cutting edge covered crossing to the cutting lines. If the cutting edges in question are arranged in a roof-like manner, high cutting forces can be applied and the service life is increased due to the uniform introduction of the cutting forces into the punching knife.
  • the other cutting surface geometry mentioned which can be provided as an alternative or in addition to the roof-like cutting edges in the punching knife, only one cutting surface of each cutting edge has to be machined, which lowers the manufacturing costs of the device.
  • the cutting surfaces can also be oriented in one direction, so that the cutting edges of the cutting edges lie in one plane with the front or back of the punching knife.
  • At least one punching knife 14 which can be brought into engagement with the corrugated cardboard 12 is provided, as is partially shown in a side view in FIG.
  • the punching knife 14 which consists of a flat metal blank, has individual cutting edges 16 on its lower processing side as seen in FIG. 1, which have a definable axial distance from one another and whose cutting edges 18 are arranged along a first, partly fictitious cutting line 20.
  • further cutting edges 22 are present, the cutting edges 24 of which, set back in the direction of the engagement, run in one plane along a second cutting line 26, which is different from the first cutting line 20 and runs parallel to the latter, as is particularly shown in FIG. 1 and 2a, 2b.
  • each cutting edge 16, 22 has two cutting surfaces 28, 30, which preferably run towards one another at an acute angle to the cutting edges 18 and 24, respectively.
  • the cutting 16, 22 are thus arranged in two groups 16 and 22 separated from one another in an alternating sequence along the cutting lines 20 and 26.
  • the cutting edges 16 and 22 each have only one inclined cutting surface 28, 30, that with the cutting surface 30 or 28 of the respectively adjacent cutting edge 22 or 18 overlap crosswise to the cutting lines 20, 26, as shown on the end face in FIG. 4.
  • all of the cutting edges 16, 22 can also be aligned uniformly on one side.
  • the cutting surfaces 28, 30 of cutting edges 16 and 22 may have a different inclination to one another, provided that the machining task makes this appear expedient.
  • FIGS. 5 and 6 shows the reception of the punching knife in a punching tool 32 of the punching device according to the invention designed as a flat plate.
  • a punching plate 34 is provided opposite the punching tool 32 as a counter-holder, so that between the actual punching tool 32 with the respective punching knife 14 and the punching plate 34 underneath it, the corrugated cardboard blank 12 can be moved in cycles depending on the movement position of the device.
  • the corrugated cardboard blank 12 shown partially as a punched sheet in FIGS. 5 and 6 has a shaft 36 and two cover layers 38.
  • the punching tool 32 can be moved up and down in the direction of the double arrow; however, it is also possible to keep the punch 32 at rest and to move the punch plate 34 up and down or to obtain the movement in question by a relative movement of the punch tool 32 and the punch plate 34.
  • the respective punching knife 14 is guided between spring elements 40 of the device, in particular in the form of rubber elements that corrugated cardboard 12 for the perforation process Hold down on the punch plate 34 and also facilitate the return of the punch tool 32 with the punch knife 14.
  • 5 and 6 correspond in the direction of the section lines IIa-IIa, IIb-IIb in FIG.
  • FIGS. 9a and b for a partially reproduced corrugated cardboard cutout 12, FIG. 9a relating to the front of the corrugated cardboard and FIG. 9b to the rear, looking in the direction of the 5 and 6 seen at the top and is therefore arranged above the front.
  • the continuous separating points 42 shown in FIG. 9 a and produced by means of the cutting edges 16 in the corrugated cardboard material 12 with the method according to the invention are shown on the back in FIG. 9 b, whereby roof-like recesses 44 are pressed into the drawing plane and the corrugated cardboard material 12 due to the cutting edge geometry or be impressed.
  • a scribe line 46 which can be generated by means of the cutting edges 22 and which in any case leaves at least the outer edge region of the lower cover layer 38 of the corrugated cardboard material 12 untouched.
  • This configuration results in a corrugated cardboard product with a perforation line 10 along which the corrugated cardboard can be easily bent or bent and which is also easy to tear open, with only minimal unevenness, which is in the tenths of a millimeter range, along the tear line. This effectively counteracts the risk of injury.
  • the cutting lines 20, 26 can also follow a predeterminable curve or other geometries running in parallel planes, which leads to changed perforation lines, which can also run, for example, in an arc shape to form an opening flap in the corrugated cardboard product.
  • the punching knife need not be part of the punching device described according to FIGS. 5 and 6, but can also be arranged as a radial tool on a rotating punching or rotating roller, the curvature of the punching knife then being dimensioned such that when the roller rolls off for Generating the perforation line is always only a part of the cutting edges 16, 22 in engagement with the corrugated cardboard material 12.

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  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Making Paper Articles (AREA)
EP95109521A 1994-08-09 1995-06-20 Procédé et dispositif ainsi que poinçon de découpe pour la réalisation de perforations de déchirement sur des produits en carton ondulé Withdrawn EP0698454A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19944428185 DE4428185A1 (de) 1994-08-09 1994-08-09 Vorrichtung zum Herstellen von Aufreißperforationen
DE4428185 1994-08-09

Publications (1)

Publication Number Publication Date
EP0698454A1 true EP0698454A1 (fr) 1996-02-28

Family

ID=6525265

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95109521A Withdrawn EP0698454A1 (fr) 1994-08-09 1995-06-20 Procédé et dispositif ainsi que poinçon de découpe pour la réalisation de perforations de déchirement sur des produits en carton ondulé

Country Status (2)

Country Link
EP (1) EP0698454A1 (fr)
DE (1) DE4428185A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL1013518C2 (nl) * 1999-11-08 2001-05-09 Multifoil Bv Informatiedrager.
DE10059125A1 (de) * 2000-11-29 2002-06-06 Heidelberger Druckmasch Ag Einrichtung zur Perforation von Materialbahnen

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6223641B1 (en) * 1996-11-12 2001-05-01 Xynatech, Inc., Perforating and slitting die sheet
DE10227050B3 (de) 2002-06-17 2004-01-29 Albert Frey Verpackungsentwicklungen Und Vertriebs-Gmbh Wellpappe mit Aufreißlinie
DE102008004902A1 (de) * 2008-01-17 2009-07-23 Cab Produkttechnik Gmbh & Co. Kg Vorrichtung und Verfahren zum Perforieren von Bandmaterial
EP2390196B1 (fr) 2010-05-29 2014-03-26 STI-Gustav Stabernack GmbH Dispositif défonceur pour une section
DE102018000328B4 (de) * 2018-01-17 2019-08-08 Kiefer Werkzeugbau Gmbh Vorrichtung zum Ausstanzen von Teilen aus einer Materialbahn oder aus einem Meterialbogen
DE102019111435A1 (de) * 2019-05-03 2020-11-05 Heuchemer Verpackung Gmbh & Co. Kg Aufreißvorrichtung in einem Zuschnitt aus Faltmaterial, insbesondere in einem Zuschnitt aus Wellpappe und Flachstanzvorrichtung zur Herstellung eines Kartonzuschnitts

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE671344C (de) 1937-10-21 1939-02-06 Jagenberg Werke Ag Zuschnitt aus Pappe o. dgl. fuer Schachteln o. dgl. sowie Verfahren und Vorrichtung zu seiner Herstellung
GB551569A (en) * 1941-12-12 1943-03-01 Fanfold Ltd Improvements relating to cutting devices
US2401310A (en) * 1945-04-09 1946-06-04 Clarence P Mayhew Perforating rule
DE1172525B (de) * 1963-02-27 1964-06-18 Heinrich Sieger G M B H Arbeitsverfahren und Vorrichtung zur Herstellung perforierter Bahnen, Bogen und Zuschnitte aus Wellpappe zur Anwendung fuer Faltpolster, Aufreisskartons u. dgl.
US3205750A (en) * 1962-09-17 1965-09-14 John Strange Carton Company Means for perforating paperboard
US3255648A (en) * 1964-11-16 1966-06-14 Kvp Sutherland Paper Co Severance line construction for cartons and the like
DE2365590A1 (de) * 1973-12-14 1975-09-11 Bandamatic Systems Service K K Praegeformwerkzeug fuer die herstellung von verpackungsbehaeltern
DE4138025A1 (de) * 1991-11-19 1993-05-27 Baeumer Kg Spezialmasch Bandmesser
EP0546392A1 (fr) * 1991-11-29 1993-06-16 R + S STANZTECHNIK GmbH Lame pour le découpage ainsi que dispositif avec celle-ci

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1316670A (en) * 1970-07-29 1973-05-09 Ross A L Perforator means
DE3119175A1 (de) * 1981-05-14 1982-12-09 Gartemann & Hollmann Gmbh, 4800 Bielefeld "mehrlagiger sack, sowie verfahren und vorrichtung zu seiner herstellung"

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE671344C (de) 1937-10-21 1939-02-06 Jagenberg Werke Ag Zuschnitt aus Pappe o. dgl. fuer Schachteln o. dgl. sowie Verfahren und Vorrichtung zu seiner Herstellung
GB551569A (en) * 1941-12-12 1943-03-01 Fanfold Ltd Improvements relating to cutting devices
US2401310A (en) * 1945-04-09 1946-06-04 Clarence P Mayhew Perforating rule
US3205750A (en) * 1962-09-17 1965-09-14 John Strange Carton Company Means for perforating paperboard
DE1172525B (de) * 1963-02-27 1964-06-18 Heinrich Sieger G M B H Arbeitsverfahren und Vorrichtung zur Herstellung perforierter Bahnen, Bogen und Zuschnitte aus Wellpappe zur Anwendung fuer Faltpolster, Aufreisskartons u. dgl.
US3255648A (en) * 1964-11-16 1966-06-14 Kvp Sutherland Paper Co Severance line construction for cartons and the like
DE2365590A1 (de) * 1973-12-14 1975-09-11 Bandamatic Systems Service K K Praegeformwerkzeug fuer die herstellung von verpackungsbehaeltern
DE4138025A1 (de) * 1991-11-19 1993-05-27 Baeumer Kg Spezialmasch Bandmesser
EP0546392A1 (fr) * 1991-11-29 1993-06-16 R + S STANZTECHNIK GmbH Lame pour le découpage ainsi que dispositif avec celle-ci

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL1013518C2 (nl) * 1999-11-08 2001-05-09 Multifoil Bv Informatiedrager.
DE10059125A1 (de) * 2000-11-29 2002-06-06 Heidelberger Druckmasch Ag Einrichtung zur Perforation von Materialbahnen

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Publication number Publication date
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