EP2275251A1 - Couteau pour feuilles doté d'une chambre d'aspiration - Google Patents

Couteau pour feuilles doté d'une chambre d'aspiration Download PDF

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Publication number
EP2275251A1
EP2275251A1 EP20100169600 EP10169600A EP2275251A1 EP 2275251 A1 EP2275251 A1 EP 2275251A1 EP 20100169600 EP20100169600 EP 20100169600 EP 10169600 A EP10169600 A EP 10169600A EP 2275251 A1 EP2275251 A1 EP 2275251A1
Authority
EP
European Patent Office
Prior art keywords
foil
knife
plateau region
base plate
height
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Withdrawn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
EP20100169600
Other languages
German (de)
English (en)
Inventor
Reinhard Raueiser
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.)
Winkler and Duennebier GmbH
Original Assignee
Winkler and Duennebier 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 Winkler and Duennebier GmbH filed Critical Winkler and Duennebier GmbH
Publication of EP2275251A1 publication Critical patent/EP2275251A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • 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
    • B26F1/38—Cutting-out; Stamping-out
    • B26F1/44—Cutters therefor; Dies 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
    • B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/18—Means for removing cut-out material or waste
    • B26D7/1845—Means for removing cut-out material or waste by non mechanical means
    • B26D7/1863—Means for removing cut-out material or waste by non mechanical means by suction
    • 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
    • B26F1/38—Cutting-out; Stamping-out
    • B26F1/384—Cutting-out; Stamping-out using rotating drums
    • 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
    • B26F1/38—Cutting-out; Stamping-out
    • B26F1/44—Cutters therefor; Dies therefor
    • B26F2001/4481—Cutters therefor; Dies therefor having special lateral or edge outlines or special surface shapes, e.g. apertures
    • 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
    • B31B2150/00—Flexible containers made from sheets or blanks, e.g. from flattened tubes
    • 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
    • B31B2160/00—Shape of flexible containers
    • B31B2160/10—Shape of flexible containers rectangular and flat, i.e. without structural provision for thickness of contents
    • 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
    • B31B70/00—Making flexible containers, e.g. envelopes or bags
    • B31B70/74—Auxiliary operations
    • B31B70/81—Forming or attaching accessories, e.g. opening devices, closures or tear strings
    • B31B70/82—Forming or attaching windows
    • B31B70/83—Cutting window openings
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/202—With product handling means
    • Y10T83/2066—By fluid current
    • Y10T83/207—By suction means

Definitions

  • the invention relates to foil knives, which are arranged for the processing or cutting of pieces of flat material on the lateral surface of a vacuum roll, and in particular foil knife, in which the / cut by the cut from the flat material / n Schnipel over a certain angle of rotation of the vacuum roll on by means of suction the surface of the foil knife are held.
  • the flat pieces to be processed can be transported and / or processed, inter alia, by means of vacuum rolls.
  • suction holes which are supplied by negative pressure in the vacuum roller axially extending suction channels, the flat material blank is held in this case on the lateral surface of the vacuum roller.
  • the flat piece of material to be cut in a rotary process for example, to a desired contour or cut from the flat piece interior areas, such as the window opening in an envelope
  • a so-called foil knife can be mounted on the lateral surface of the vacuum roller, a so-called foil knife.
  • This foil knife can in this case in the form of a sheet with in the radial direction of the roller protruding cutting present and held, for example, by magnetic force on the lateral surface of the roller.
  • the flat piece of material to be cut is also held by suction generated by negative pressure, but on the surface of the foil knife, which has for this purpose with the suction holes in the lateral surface of the roller substantially aligned suction air passage openings.
  • a corresponding foil knife is for example in the DE 199 25 612 A1 described.
  • the waste areas (hereinafter referred to as snippets) separated during cutting from the useful portion of the flat piece of material to be further processed, i. the edge regions surrounding the groove contour or the area within the cut window opening can hereby be transported over a certain angular range of the rotation of the vacuum roller following the cut through the suction effect on the surface of the foil knife, in order then to be disposed of by the vacuum roller by terminating the suction effect and / or admission of the suction holes controlled by compressed air / blown off.
  • Uncontrolled detachment of the snip from the surface of the foil knife during rotation of the vacuum roller is highly undesirable, however, since the freely moving snippets fly around uncontrollably in the processing machine and can lead to impairments in the processing of flat pieces of material and in the worst case to damage the system.
  • the foil cutter according to the invention is intended for use on the lateral surface of a suction roll and has at least one cutting edge and a base plate with a surface.
  • the surface of the base plate of the knife in this case comprises in a "Schnippel Scheme", ie the area which a separated during cutting from a useful portion of a sheet Opposite Schnippel, at least one Saug Kunststoff malgangsö réelle. Due to this Saugluft begangsö réelle the Schnippel can be held by means of suction over a predetermined angular range of rotation of the suction roll at this.
  • the foil knife has at least one plateau region around the suction air passage opening.
  • the foil knife is formed at least in sections over the thickness D of the base plate of the foil knife by a height h measured from the surface of the base plate.
  • the height h is smaller than the height H measured from the surface of the base plate of the blade of the foil cutter.
  • the plateau region completely surrounds the suction air passage opening to ensure uniform contact of the snip around the suction air passage opening.
  • the plateau region surrounds the suction air passage opening only in sections.
  • a uniform, possibly symmetrical arrangement of several plateau areas around the Saug Kunststoff begangsö réelle around is possible.
  • the plateau region (s) are arranged around the suction air passage opening over the entire angular range of 360 °.
  • the foil knife is formed in the plateau region continuously by a height h measured from the surface of the base plate. If a plurality of plateau areas are arranged around the suction air passage opening, they are preferably designed such that the foil knife is raised in all plateau areas continuously by a height h measured from the surface of the base plate.
  • plateau region (s) such that the foil knife is raised in the plateau region (s) by various heights h a , h b , h c measured from the surface of the base plate is, ie the foil knife has within the / Plateau Suites / e no consistent uniform height.
  • the plateau region is at least partially spaced from the Saug Kunststoff malgangsö réelle.
  • a suction chamber can form in the region between the edges of the suction air passage opening and the plateau region, so that the suction region, which can effectively be acted upon by negative pressure and impart suction, is increased.
  • the Saugluft malgangsö réelle is completely and continuously surrounded by the plateau region, so that no erroneous air can be pulled laterally into the suction chamber.
  • the plateau region can be formed as a web.
  • a web is understood here to be a raised shape, which is characterized by a considerably smaller transverse extent compared to the longitudinal extent. This does not have to be a straight bridge. Rather, the web-shaped Plateau Schl can also swing, circular or run in any other form.
  • the bridge does not have on its entire longitudinal extent a uniform width, ie have transverse extent. Also bifurcations of a bridge in two parts or the like are conceivable. Furthermore, the web could not be formed continuously, but have interruptions.
  • the plateau area designed as a web can have a width measured on the base plate that is smaller than the width of the cutters measured on the base plate.
  • the ridge-shaped plateau region could project from the base plate, tapering therefrom, i. in this sense have a conical cross section.
  • the plateau region can furthermore have, at least in sections, a plateau region cutting edge on its side facing away from the base plate.
  • the plateau area cutting edge should be dimensioned in such a way that a complete cut of the snippet does not occur when the snare is set against the plateau area.
  • the height of the plateau region cutting edge measured from the surface of the base plate of the foil knife will usually be smaller than the height H of the foil cutting edge.
  • the plateau area cutting edge to have, in sections, a height measured from the surface of the base plate of the foil knife which corresponds to the height of the foil knife edges.
  • the plateau area cutting edge is not formed continuously, but has interruptions or areas of lesser height, so that it is not to form a complete section of the snip at a plant of Schnippels on the Plateau Bachelor, but rather to form a sectional section in the sense of a perforation comes.
  • the height of the plateau region cutting edge measured from the surface of the base plate of the foil knife is at least partially smaller than the height of the cutting edge of the foil knife measured from the surface of the base plate of the foil knife.
  • the difference between the height H of the blades of the foil cutter and the height h of the plateau region corresponds essentially to the thickness of the flat material to be cut.
  • a plurality of suction air passage openings may also be present in the base plate of the film knife in the snipping region, wherein at least one plateau region is then preferably arranged around each of the suction air through openings.
  • at least two of the Saug Kunststoff choirsö Maschinenen present in the Schnippel Scheme surrounded by a common plateau region, so that if necessary, a common suction chamber can be formed.
  • the common plateau region then completely surrounds the suction air passage openings.
  • the Plateau Bachelor may continue at least partially extend to the cutting the cutting part of the useful part of the sheet cutting edge.
  • the outer contour of the plateau region essentially corresponds to the outer contour of the snippet, since then the snippet comes to rest against the plateau region, in particular at the critical points, ie its edges.
  • FIG. 1 shows a first embodiment of a film knife according to the invention 1.
  • the film knife 1 is shown in a unwound from a corresponding suction roll, planar state.
  • the foil knife At its seen in the direction of rotation of the roller front end 2, the foil knife on a series of elongated through holes 3, which serve the foil knife 1 by means of corresponding engaging in the through holes 3 pins on the lateral surface of a suction roll in the axial direction and in the circumferential direction with respect To determine suction roll in a predefined position.
  • the foil knife 1 can be fixed, for example by means of magnetic interaction on the lateral surface of a suction roll.
  • FIG. 1 represented by a circumferential dashed line the outer circumference of an envelope cut by the foil knife envelope 4.
  • the foil cutter 1 has, for cutting the envelope cut 4, four mutually spatially separate cutters 5a, 5b, 5c and 5d, each projecting from the surface of the base plate 6 of the foil cutter 1, for example in the form of substantially equilateral triangles.
  • a total of four small snippets are separated from the envelope cut 4 when using the foil knife.
  • the two larger snippets are in this case in the front of the blank 4 seen in the direction of rotation of the roller while the two smaller snippets are arranged in the rear region of the blank 4.
  • the foil cutter 1 has snipping areas 7a, 7b or 8a and 8b. Within these snipping areas 7a, 7b, 8a and 8b, a plurality of suction air passage openings 71a, 71b, 81a and 81b are respectively disposed in the base plate 1a of the film knife 1 to hold the respective snout by suction over a predetermined angular range of rotation of a suction roll thereon. In the in FIG.
  • the base plate 6 of the film knife further has a large number of suction air passages 10 for holding the blank 4 by suction over a predetermined angular range during rotation of the suction roll.
  • FIG. 2 shows a schematic partial view of another embodiment of a film knife according to the invention 1.
  • the foil knife 1 and the associated suction roll 20 is shown, on the lateral surface 21 of the foil knife 1 is applied.
  • the lateral surface 21 of the suction roll 20 in this case has a plurality of suction holes 22, which can be acted upon in a known manner with negative pressure.
  • FIG. 2 illustrated embodiment of the film knife 1 according to the invention, in contrast to the in FIG. 1 shown embodiment in Schnippel Scheme 7a only a single Saugluft carefullygangsö réelle 71a.
  • This Saugluft malgangsö réelle 71 a is completely surrounded by a continuous plateau region 9. Due to the active suction holes 23 located within the suction air passage opening 71a and the plateau region 9, a suction chamber is formed within the area encompassed by the plateau area 9, over the entire dimensions of the snippets can then be held by vacuum.
  • the film knife 1 includes the Plateau Scheme 9 substantially directly to the edges of the respective Saug Kunststoff choirsö réelle 71 a, 71 b, 81 a, 81 b, ie it is not spaced therefrom.
  • FIG. 3 is a schematic cross-sectional partial view of an embodiment of a foil cutter 1 according to the invention with letter envelope blank 4 arranged thereon.
  • the base plate 6 of the film knife in this case has a thickness D.
  • the cutting edge 5a in this case has a shape which substantially corresponds to an equilateral triangle, and protrudes from the surface of the base plate 6 with a height H.
  • the shape of the cutting edge 5a shown in the figures and essentially corresponding to an equilateral triangle is to be understood here only as a non-limiting example.
  • other cutting cross-sectional shapes are conceivable here, such as isosceles triangles, irregular triangles or other suitable geometric shapes.
  • the foil cutter 1 Spaced apart from the cutting edge 5a, the foil cutter 1 has a suction air passage opening 71a in the snipping region 7a opposite the snipping 11.
  • This Saug Kunststoff malgangsö réelle 71a is completely surrounded by a peripheral area of a plateau 9, which is also web-shaped again here and analogous to the blade 5a has a shape that corresponds substantially to an equilateral triangle.
  • the height h at which the plateau region 9 protrudes from the surface of the base plate 6 is at least the thickness d of the envelope cut 4 and consequently of the cut 11 smaller than the height H of the cutting edge 5a. In this way, the Schnippel 11 on the Plateau Scheme 9 rest without having to be lowered from the level of Briefhüllenzuites 4.
  • the snippet 11 is then pulled increasingly against the upper edge 9a of the plateau region 9. Since the upper edge 9a is formed like a cutting edge in the present example, can be achieved by a slight penetration of the upper edge 9a of the Plateau Schemes 9 in the Schnippel 11 a particularly good seal formed in the area surrounded by the Plateau Scheme 9 suction chamber, so that particularly little false air is sucked ,
  • all plateau areas consistently have the same height h.

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  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Advancing Webs (AREA)
  • Details Of Cutting Devices (AREA)
EP20100169600 2009-07-16 2010-07-15 Couteau pour feuilles doté d'une chambre d'aspiration Withdrawn EP2275251A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102009033575A DE102009033575B4 (de) 2009-07-16 2009-07-16 Folienmesser mit Saugkammer

Publications (1)

Publication Number Publication Date
EP2275251A1 true EP2275251A1 (fr) 2011-01-19

Family

ID=42983686

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20100169600 Withdrawn EP2275251A1 (fr) 2009-07-16 2010-07-15 Couteau pour feuilles doté d'une chambre d'aspiration

Country Status (4)

Country Link
US (1) US20110036222A1 (fr)
EP (1) EP2275251A1 (fr)
JP (1) JP2011020259A (fr)
DE (1) DE102009033575B4 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102248543A (zh) * 2011-04-27 2011-11-23 苏州工业园区天势科技有限公司 自动吸附式标签切刀
DE102011110840A1 (de) 2011-08-23 2013-02-28 Khs Gmbh Füllmaschine sowie Verfahren zum Steuern einer Füllmaschine
DE102012022120A1 (de) 2012-11-13 2014-05-15 Winkler + Dünnebier Gmbh Saugwalzensystem und Anlage zur Verarbeitung einer Materialbahn
DE102017213389B4 (de) * 2017-08-02 2022-07-28 Heidelberger Druckmaschinen Ag Rotationsstanze zum Ausstanzen eines Materialstücks aus einem Bedruckstoff
DE102017119918A1 (de) * 2017-08-30 2019-02-28 Karl Marbach Gmbh & Co. Kg Technik zum Stanzen von Kleinstanzteilen
DE102019203693B4 (de) * 2018-04-11 2022-07-28 Heidelberger Druckmaschinen Intellectual Property Ag & Co. Kg Verfahren zum Herstellen einer Stanzform
DE102021103848B3 (de) 2021-02-18 2022-04-28 Koenig & Bauer Ag Bearbeitungsmaschine mit zumindest einer Trenneinrichtung

Citations (3)

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US5704264A (en) * 1995-08-31 1998-01-06 Kimberly-Clark Worldwide, Inc. Cutting die with elevated stripping land
DE19925612A1 (de) 1999-06-04 2000-12-07 Winkler & Duennebier Ag Drehbare Messerwalze
US20030209123A1 (en) * 2002-05-07 2003-11-13 O'dell Michael Rotatable die

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US3827322A (en) * 1972-08-23 1974-08-06 Container Graphics Corp Ejection member for cutting dies
US3850059A (en) * 1973-01-08 1974-11-26 Chempar Corp Die and method for cutting labels and the like
DE7305842U (de) * 1973-02-16 1973-05-24 Hofmann A Stanzwerkzeug aus bandstahl zum rotationsstanzen von wellpappe
US3981213A (en) * 1974-10-25 1976-09-21 Albert Lopman Rotary sheet material cutter and creaser
US4579634A (en) * 1982-04-05 1986-04-01 Jerobee Industries, Inc. Die and method of making same
US6117062A (en) * 1988-12-06 2000-09-12 Alhamad; Shaikh Ghaleb Mohammad Yassin Compositions of matter for stopping fires, explosions and oxidations of materials and build up of electrostatic charges and method and apparatus for making same
DE3906290C2 (de) * 1989-02-28 1995-05-18 Joergen Gerhardt Vorrichtung zum Stanzen von blattförmigem Material, insbesondere Etikettenmaterial
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US5697277A (en) * 1994-05-17 1997-12-16 Best Cutting Die Company Multi use rotary die plate system
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DE102009033576A1 (de) * 2009-07-16 2011-01-20 WINKLER+DüNNEBIER AG Rotationsstanze

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5704264A (en) * 1995-08-31 1998-01-06 Kimberly-Clark Worldwide, Inc. Cutting die with elevated stripping land
DE19925612A1 (de) 1999-06-04 2000-12-07 Winkler & Duennebier Ag Drehbare Messerwalze
US20030209123A1 (en) * 2002-05-07 2003-11-13 O'dell Michael Rotatable die

Also Published As

Publication number Publication date
DE102009033575A1 (de) 2011-01-27
DE102009033575B4 (de) 2011-07-21
US20110036222A1 (en) 2011-02-17
JP2011020259A (ja) 2011-02-03

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