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EP0760274A1 - Dispositif d'ajustage pour des perforateurs - Google Patents

Dispositif d'ajustage pour des perforateurs Download PDF

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Publication number
EP0760274A1
EP0760274A1 EP96110375A EP96110375A EP0760274A1 EP 0760274 A1 EP0760274 A1 EP 0760274A1 EP 96110375 A EP96110375 A EP 96110375A EP 96110375 A EP96110375 A EP 96110375A EP 0760274 A1 EP0760274 A1 EP 0760274A1
Authority
EP
European Patent Office
Prior art keywords
cylinder
cylinders
actuators
knife
perforating
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Withdrawn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
EP96110375A
Other languages
German (de)
English (en)
Inventor
David E. Whitten
Richard E. Breton
Mark A. Wingate
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.)
Heidelberger Druckmaschinen AG
Original Assignee
Heidelberger Druckmaschinen 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 Heidelberger Druckmaschinen AG filed Critical Heidelberger Druckmaschinen AG
Publication of EP0760274A1 publication Critical patent/EP0760274A1/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Withdrawn legal-status Critical Current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
    • B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/26—Means for mounting or adjusting the cutting member; Means for adjusting the stroke of the cutting member
    • B26D7/2628—Means for adjusting the position of the cutting member

Definitions

  • the present invention relates to a device for perforating or performing another processing step on a web of material entering a folder.
  • US 2,832,411 discloses a holding device for a perforating knife.
  • a cylinder has an elongated recess which is at an angle to the cylinder axis.
  • a knife segment is placed in the recess and longitudinally moving clamping elements in the recess abut the knife segment.
  • the clamping elements are designed such that by a relative movement of the clamping elements they grip the knife between them. In this way, the alignment of said knife segment is maintained and its adjustment is effected. Uncomplicated removal and replacement of a knife is possible if this is necessary.
  • US 4,055,101 discloses an apparatus for transporting a web fed from a roll with an improved perforating device.
  • the perforating device is integrated in a conventional perforating cylinder, which rotates during the perforating process.
  • a variety of perforating knives are mounted in the perforating cylinder and various improvements have been shown in relation to spring loaded positioning elements of the perforating knives.
  • the knife seats each have a support element that is deformable by pressure applied to the perforating knife.
  • An additional object of the present invention is to keep the perforating surfaces on the center line of the paper path to minimize fluttering of the paper strands.
  • the cooperating cylinders remain at a zero increase in speed, which means accurate perforation enables and excludes a longitudinal expansion of the perforations during the contact of the perforating elements with said cooperating cylinders. Since both cooperating cylinders are movably mounted, the web of material passing between these two cylinders will always be in the middle of the cylinder gap, which promotes perforation accuracy.
  • the housings in which the respective ends of the cooperating cylinders are received, are mounted in actuators which move eccentrically. Since the actuators contact each other during a rotary movement - clockwise and counter-clockwise - the movement of one actuator also causes a corresponding movement of the other actuator. Due to the eccentric movement of the cooperating cylinders, drive connections are attached to the cylinders to compensate for the relative movement of the cylinders with respect to the side frames of the folder. At least one knife holder or one cutting bar can be assigned to each of the cylinders, it depending on whether the operating mode is double parallel fold or tabloid fold.
  • intermediate shims otherwise known as shims
  • shims are attached below the knife holder and cutting bar, whereby the effective diameter and the surface speed of the cooperating cylinders are set.
  • a folder 1 comprises a former 2 for producing a first longitudinal fold in a web which extends in the direction of the vertical dashed center line of the former 2.
  • a pair of lower hopper rolls 3 are arranged below the hopper 2.
  • the longitudinally folded web of material is compressed by a pair of upper press rolls 4 before a transverse perforation is applied to the web in a perforator 5, as shown in detail in Figs. 2-5.
  • a pair of lower press rolls 6 is arranged below the perforating device 5. With each revolution, cutting cylinders 7 cut an individual product from the material web, and the individual cut products are gripped by a respective first and second acceleration conveyor belt 8, 9 and brought to a transfer cylinder 10, which cooperates with further folding cylinders of the folding apparatus 1.
  • a spindle 14 extends across the width of the folding apparatus 1, the two ends of which are each received in a drive-side wall 12 and in an operator-side wall 11.
  • the spindle 14 is driven by an actuator 13 attached to the operator side wall 11.
  • the spindle 14 further comprises two gear wheels 16, each of which a threaded shaft 15 is assigned.
  • Each of the threaded shafts 15 is connected to an arm 17, and the respective arms 17 are attached to the eccentric actuators 18.
  • eccentric housings 20 are rotated about the center lines of the perforating cylinders, ie around a knife cylinder 22 and around a cutting bar cylinder 23.
  • the pins of the cylinders 22 and 23 are each supported via bearings 21 in the respective eccentric housings 20 on the operator side and the drive side.
  • the eccentric actuators 18, 18.1 attached to the drive-side and operator-side walls 12, 11 have toothed segments 19, 19.1 which engage with one another. Consequently, due to this intermeshing, during the rotational movement of the eccentric actuator 18 caused by the rotation of the threaded shaft 15 in the arm 17, the eccentric actuator 18.1 will rotate approximately the same distance clockwise or counterclockwise. Since the eccentric housings 20 are mounted on the eccentric actuators 18, 18.1, the rotary movement causes a simultaneous center-to-center movement of the knife cylinder 22 and the cutting bar cylinder 23 by approximately the same distance. Because the eccentric actuators 18 and 18.1 on the operating side and the drive side are rotated simultaneously, a horizontal displacement of the perforating cylinders 22, 23 mentioned can be achieved.
  • the gap between the cylinders 22, 23 is widened, not only by moving one cylinder with respect to the other, but simultaneously moving both cylinders 22, 23 an identical distance, with the web of material perforated in the perforating device 5 being held in a central position becomes.
  • the drive of the perforating cylinders 22, 23 is located on the drive-side frame. Since the housings 20 of the cylinders 22, 23 can be moved eccentrically, the associated drive shafts 24, 25 are arranged in such a way that the eccentric movement of the cylinders 22, 23 is compensated for.
  • the drive is transmitted to the drive shafts 24, 25 by meshing gears 26, 27.
  • the gear 27 is driven by a drive wheel 28 mounted on a drive shaft 29.
  • the knife cylinder 22 has at least one knife holder 30 attached to its circumference, as shown in detail in FIGS. 3 and 4. Consequently, the corresponding cutting bar cylinder 23 has on its circumference a number of rubber cutting bars 31 corresponding to the number of knife holders 30 of the knife cylinder 22.
  • Fig. 3 shows a center setting device in detail with an enlarged view of the adjusting elements of the perforating device 5.
  • the knife cylinder 22 and the cutter bar cylinder 23 are each accommodated in housings 20 which are mounted in the eccentric actuators 18 and 18.1.
  • the eccentric actuators 18 and 18.1 comprise respective toothed segments 19, 19.1 which mesh with one another.
  • the spindle 14 shown in section drives the threaded shafts 15 via the intermediate toothed wheels 16, as a result of which the arms 17 attached to the eccentric actuator 18 are moved clockwise or counterclockwise.
  • the rotary movement of the actuator 18 associated with the knife cylinder 22 causes a corresponding rotary movement of the actuator 18.1 associated with the cutting bar cylinder 23, which causes a center-to-center adjustment of the cylinders 22, 23 Recess of the actuator 18, a pin is provided to limit the rotational movement of the actuators 18 and 18.1.
  • FIG. 4 shows a perforating device which produces several transverse perforations in one revolution.
  • two knife holders 30 are assigned to the knife cylinder 22, and a further knife holder 30 is attached to the cutter bar cylinder 23.
  • This enables the cross perforations to be made in the same direction as the cross folds during the further processing of the individual products.
  • the knife holder 30 assigned to the knife cylinder 22 a transverse perforation corresponding to the first parallel fold and a transverse perforation corresponding to a flap fold can be made, whereas the knife holder 30 assigned to the cutter bar cylinder 23 produces a transverse perforation corresponding to the second parallel fold.
  • the knife holders 30 located in the recesses of the cylinder 22 and the rubber cutting bars 31 located in the recesses of the cylinder 23 are assigned respective intermediate or adapter plates 32. Since these adapter plates 32 are made of rigid material, the effective diameter 39 of the cylinders 22, 23 and their surface speed can be changed in order to allow a perfect match of the cooperating surfaces with a zero increase in speed. As can be seen in Fig. 4, the fitting plates 32 are placed under the knife holder 30 and the rubber cutting bar 31. The knife holders are fastened by means of screws 33 and 34, and screws 37 are guided through the perforating knives 38 in the knife holders 30.
  • Fig. 5 shows an embodiment of a perforating device for use in tabloid or quarterfold.
  • one transverse perforation is produced with one revolution of the perforating cylinders 22, 23.
  • the knife holder 30 and the rubber cutting bar 31 were underlaid with a fitting plate 32 in order to influence the effective diameter 39 of the two cylinders 22, 23, so that the perforation cannot be elongated when the perforation is in contact.
  • a perforation area in the nip is almost true to line - with respect to the width of the cylinders 22, 23 - instead of just a contact surface which can cause cracks in the individual products.
  • the present invention can e.g. B. in gravure printing machines, in which the product processing takes place in different section lengths, can be applied by the fitting plates 32 in the recesses of the knife holder 30 and the rubber cutting bar 31 by lifting elements such as lifting screws or eccentric Lift, to be replaced, which act under the rubber cutting bar 31 and knife holder 30.
  • lifting elements such as lifting screws or eccentric Lift

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
EP96110375A 1995-08-30 1996-06-27 Dispositif d'ajustage pour des perforateurs Withdrawn EP0760274A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US52148695A 1995-08-30 1995-08-30
US521486 1995-08-30

Publications (1)

Publication Number Publication Date
EP0760274A1 true EP0760274A1 (fr) 1997-03-05

Family

ID=24076919

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96110375A Withdrawn EP0760274A1 (fr) 1995-08-30 1996-06-27 Dispositif d'ajustage pour des perforateurs

Country Status (4)

Country Link
EP (1) EP0760274A1 (fr)
JP (1) JPH09136758A (fr)
CA (1) CA2181752C (fr)
DE (1) DE19625787A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1072369A1 (fr) * 1999-07-26 2001-01-31 Heidelberger Druckmaschinen Aktiengesellschaft Mécanisme de déphasage pour le dispositif de perforation d'une plieuse à produit variable
US8845659B2 (en) 2010-02-25 2014-09-30 Covidien Lp Articulating endoscopic surgical clip applier

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19935022A1 (de) * 1999-07-26 2001-02-01 Heidelberger Druckmasch Ag Vorrichtung zur Phasenverstellung von Perforiereinrichtungen abhängig vom Falzmodus
DE10309174A1 (de) * 2003-02-28 2004-09-16 Windmöller & Hölscher Kg Vorrichtung zum Querperforieren von Bahnen
JP5099883B2 (ja) * 2007-03-20 2012-12-19 王子ネピア株式会社 伸縮材切断ロール及び使い捨ておむつの製造方法
JP4909778B2 (ja) * 2007-03-20 2012-04-04 王子ネピア株式会社 伸縮材切断ロール及び使い捨ておむつの製造方法
DE102007019864B4 (de) 2007-04-23 2011-06-22 KOENIG & BAUER Aktiengesellschaft, 97080 Längsperforationsvorrichtungen für eine Rollenrotationsdruckmaschine mit mindestens einem Perforiermesser
JP5416671B2 (ja) * 2010-09-06 2014-02-12 日本タングステン株式会社 ロータリーカッター
JP5416670B2 (ja) * 2010-09-06 2014-02-12 日本タングステン株式会社 ロータリーカッター
CN111038098A (zh) * 2019-12-09 2020-04-21 高斯图文印刷系统（中国）有限公司 一种印刷滚筒的离合控制机构

Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB733277A (en) * 1953-07-02 1955-07-06 Andrew Johnson & Son Ltd Improvements relating to roller adjusting means
GB936437A (en) * 1961-03-14 1963-09-11 Miehle Goss Dexter Inc Throw-off mechanism for offset presses
GB1096414A (en) * 1964-11-28 1967-12-29 Deritend Eng Co Improvements relating to apparatus for treating blanks or webs of material for example, for cutting, creasing, scoring, printing
US3954034A (en) * 1974-04-25 1976-05-04 Standex International Corporation Rotary cutting mechanism
US4598640A (en) * 1984-04-05 1986-07-08 M.A.N. Roland Druckmaschinen Aktiengesellschaft Printing unit for a web-fed offset rotary press
EP0297282A1 (fr) * 1987-06-30 1989-01-04 M.A.N.-ROLAND Druckmaschinen Aktiengesellschaft Dispositif pour scinder un courant d'imprimés
US4815377A (en) * 1987-06-22 1989-03-28 Veb Kombinat Polygraph "Werner Lamberz" Leipzig Engaging and disengaging device for blanket cylinders of a four-cylinder printing assembly for roller rotary offset printing machines
EP0407686A2 (fr) * 1989-07-14 1991-01-16 Komori Corporation Appareil de formation de perforation horizontale pour presse à imprimer
US5058496A (en) * 1990-09-17 1991-10-22 Integrated Design Corp. Roll apparatus with cooling system for maintaining constant gap size and method
DE4103744C1 (fr) * 1991-02-07 1992-09-17 Man Roland Druckmaschinen Ag, 6050 Offenbach, De
DE4215196A1 (de) * 1992-05-08 1993-11-11 Wilhelm Aichele Vorrichtung zum querverlaufenden Quetschschneiden vorlaufender Werkstoffbahnen
DE4216627A1 (de) * 1992-05-20 1993-11-25 Heidelberger Druckmasch Ag Bogenanleger an Druckmaschinen
GB2276957A (en) * 1993-04-08 1994-10-12 Langston Corp Automatic variable speed anvil system for rotary die-cut apparatus

Patent Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB733277A (en) * 1953-07-02 1955-07-06 Andrew Johnson & Son Ltd Improvements relating to roller adjusting means
GB936437A (en) * 1961-03-14 1963-09-11 Miehle Goss Dexter Inc Throw-off mechanism for offset presses
GB1096414A (en) * 1964-11-28 1967-12-29 Deritend Eng Co Improvements relating to apparatus for treating blanks or webs of material for example, for cutting, creasing, scoring, printing
US3954034A (en) * 1974-04-25 1976-05-04 Standex International Corporation Rotary cutting mechanism
US4598640A (en) * 1984-04-05 1986-07-08 M.A.N. Roland Druckmaschinen Aktiengesellschaft Printing unit for a web-fed offset rotary press
US4815377A (en) * 1987-06-22 1989-03-28 Veb Kombinat Polygraph "Werner Lamberz" Leipzig Engaging and disengaging device for blanket cylinders of a four-cylinder printing assembly for roller rotary offset printing machines
EP0297282A1 (fr) * 1987-06-30 1989-01-04 M.A.N.-ROLAND Druckmaschinen Aktiengesellschaft Dispositif pour scinder un courant d'imprimés
EP0407686A2 (fr) * 1989-07-14 1991-01-16 Komori Corporation Appareil de formation de perforation horizontale pour presse à imprimer
US5058496A (en) * 1990-09-17 1991-10-22 Integrated Design Corp. Roll apparatus with cooling system for maintaining constant gap size and method
DE4103744C1 (fr) * 1991-02-07 1992-09-17 Man Roland Druckmaschinen Ag, 6050 Offenbach, De
DE4215196A1 (de) * 1992-05-08 1993-11-11 Wilhelm Aichele Vorrichtung zum querverlaufenden Quetschschneiden vorlaufender Werkstoffbahnen
DE4216627A1 (de) * 1992-05-20 1993-11-25 Heidelberger Druckmasch Ag Bogenanleger an Druckmaschinen
GB2276957A (en) * 1993-04-08 1994-10-12 Langston Corp Automatic variable speed anvil system for rotary die-cut apparatus

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1072369A1 (fr) * 1999-07-26 2001-01-31 Heidelberger Druckmaschinen Aktiengesellschaft Mécanisme de déphasage pour le dispositif de perforation d'une plieuse à produit variable
US8845659B2 (en) 2010-02-25 2014-09-30 Covidien Lp Articulating endoscopic surgical clip applier

Also Published As

Publication number Publication date
CA2181752A1 (fr) 1997-03-01
DE19625787A1 (de) 1997-03-06
JPH09136758A (ja) 1997-05-27
CA2181752C (fr) 1999-09-14

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