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EP0196688A2 - Cylindre à couteaux pour traiter des matériaux en bandes - Google Patents

Cylindre à couteaux pour traiter des matériaux en bandes Download PDF

Info

Publication number
EP0196688A2
EP0196688A2 EP86200274A EP86200274A EP0196688A2 EP 0196688 A2 EP0196688 A2 EP 0196688A2 EP 86200274 A EP86200274 A EP 86200274A EP 86200274 A EP86200274 A EP 86200274A EP 0196688 A2 EP0196688 A2 EP 0196688A2
Authority
EP
European Patent Office
Prior art keywords
knife
cylinder
pressure medium
knife cylinder
cylinders
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
EP86200274A
Other languages
German (de)
English (en)
Other versions
EP0196688B1 (fr
EP0196688A3 (en
Inventor
Hermann Dipl.-Ing. Thomas
Josef Herd
Hans Jakob
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.)
Maschinenfabrik Goebel GmbH
Original Assignee
Maschinenfabrik Goebel 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 Maschinenfabrik Goebel GmbH filed Critical Maschinenfabrik Goebel GmbH
Publication of EP0196688A2 publication Critical patent/EP0196688A2/fr
Publication of EP0196688A3 publication Critical patent/EP0196688A3/de
Application granted granted Critical
Publication of EP0196688B1 publication Critical patent/EP0196688B1/fr
Expired 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
    • B26D7/2614—Means for mounting the cutting member
    • 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
    • Y10T83/929—Tool or tool with support
    • Y10T83/9457—Joint or connection
    • Y10T83/9464—For rotary tool

Definitions

  • the proposed device relates to a knife cylinder for processing sheet-like material consisting of paper, plastic or metal foil, fabrics or the like.
  • a knife arranged essentially parallel to the axis of rotation of the knife cylinder, also parallel to the Axis of rotation of the knife cylinder on its circumference, machined into the knife cylinder and pressure points arranged distributed over the length of each knife for tensioning the respective knife with respect to the knife cylinder by means of several pressure medium cylinders arranged distributed over the length of each knife and pressing the respective knife against the knife cylinder and with a channel system rotating with the knife cylinder and connected to pressure medium cylinders and connection for filling and discharging the pressure medium and at least one per knife between this knife and a D assigned to it quick release cylinder arranged supplement.
  • Knife cylinders of the type mentioned are used in machines to make incisions in sheet-like materials. These incisions can be made with knives that do not have a continuous cutting edge, so that a perforation is produced in this way.
  • the knives can also have a continuous cutting edge, which makes it possible to cut sheets of a certain length from an endless path.
  • the cutting lines are usually directed transversely to the running direction of the web to be processed, but they can also be arranged obliquely to the running direction of the web.
  • the knives required for this are usually in used a revolving knife cylinder so that blunt knives can be replaced without having to remove the entire cylinder from the respective processing machine, for example a form printing machine. At least one knife is attached to each knife cylinder. However, in order to achieve cuts which are at a shorter distance from one another than the diameter of the knife cylinder, a plurality of knives, for example six knives, can be distributed around the circumference of the knife cylinder.
  • the knives can be effective in the desired manner, they have to be set in relation to the web to be processed or a pressure cylinder interacting with the knife cylinder. To make this possible again, the knives can only be non-positively attached to the knife cylinders or within these cylinders. If the knives have become blunt in the course of their use, then they should be able to be exchanged for new knives.
  • an exchange of the knife generally means that both the cutting device, in which the respective knife is installed, and a further machine, for example a form printing machine, possibly cooperating with the cutting device, must be stopped. Stopping the machine inevitably means a loss of production which is as large as the time in which the machine must be stopped. Efforts are therefore made to replace the knives with as little time as possible.
  • DE-OS 20 21 061 describes a holder for the knife of a cross-cutting device, an inflatable tube being proposed for holding a knife in a corresponding rotating cylinder.
  • the applicant believes that the construction which provides for the use of a hose is not suitable for fastening knives such as those of the present protection request, since either the respective knife cannot be clamped tight enough, or if a very firm hose is used much energy or pressure must necessarily be used to expand this firmer hose. In this way, relatively little energy or pressure is available for clamping the knife.
  • an elastic hose would be pressed so strongly against the machine parts surrounding it that it itself would be light due to the high forces acting on it would give way.
  • the jacket of the hose would flow, for example, and attempt to flow into the joints of the machine parts surrounding it. This would be the beginning for the jacket of the hose to wear out quickly at the respective point. The consequence would be a further flow of the hose, since the cross section of its jacket would be weakened. In this way, the hose as a whole would break after a very short period of use and would therefore be unsuitable for the stated purpose.
  • the pressure medium cylinders assigned to each groove are arranged both within the groove and essentially in the circumferential direction of the knife cylinder, the pressure medium cylinders are bellows cylinders and the bellows cylinders are made of metal. These bellows cylinders can be so-called metal bellows, membrane bellows or even miniature bellows.
  • the pressure medium cylinders assigned to the respective knife are attached to the insert assigned to this knife. It is possible for the pressure medium cylinders assigned to a knife to be fastened to the side wall of the respective groove facing away from the respective knife of the two side walls of the respective groove which are incorporated into the knife cylinder and are arranged essentially radially to the knife cylinder.
  • the pressure bar has an essentially trapezoidal cross section, the radially inner side of the trapezoid corresponding to the cross section of the groove and the radially outer side of the trapezoid corresponding to the circumference of the knife cylinder.
  • the proposed solution makes it possible for the entire knife cylinder to be manufactured more simply and therefore more cost-effectively than, for example, that of EP-A 0 115 783.
  • the manufacture of the knife cylinder is simplified in that only axially parallel grooves have to be machined into it .
  • transverse grooves for example for lever transmission of the device according to EP-A 0 115 783, or transverse, offset and threaded bores are completely avoided.
  • the technical and financial advantages of the so-called metal bellows known per se also be used for the special requirements which the clamping of cross-cutting or cross-perforating knives pose.
  • a web 1 made of paper, plastic, metal, foil, fabric or the like runs past a printing cylinder 2 and partially wraps around it. At the same time, the web 1 passes through a nip which is formed by the pressure cylinder 2 and the knife cylinder 3.
  • the pressure cylinder 2 and the knife cylinder 3 are rotatably supported in a machine frame 5 with the aid of corresponding bearings 4.
  • At least one of the two cylinders 2 or 3 is driven, but it is also possible for the two cylinders to be connected to one another by gearwheels, toothed belts or the like in such a way that they can rotate in a fixed phase to one another. In this case it is only necessary to switch on one of the two cylinders drive, since the other is also driven by the synchronizing device consisting of gears, toothed belts or the like.
  • Knife positions 6, 7, 8, 9, 10 and 11 are provided on the knife cylinder 3.
  • the knives located at positions 6 to 11 extend essentially in the direction of the geometric axis of the knife cylinder 3 and are provided in the knife cylinder 3 parallel or slightly inclined to this axis.
  • the associated knives can have a continuous cutting edge or a cutting edge interrupted by transverse grooves. In the case in which the knives have a continuous cutting edge, the web 1 is cut transversely into individual sheets as it passes through the nip formed by the cylinders 2 and 3.
  • the knives are divided into several individual cutting edges by grooves running transversely to their cutting edge, then the web 1 is not cut completely transverse to its running direction. Rather, there is a large number of incisions in the web 1, a bridge-like web remaining between each incision. In this way, the web 1 is perforated transversely to the direction indicated by the arrow 12. Because of this perforation, it is possible to tear off individual sheets from the web 1 in a later operation. However, it is also possible, for example, for those points at which the web 1 is weakened by transverse perforations to form articulation points in which the web 1 can be folded transversely to its running direction in a later zigzag folding process.
  • Fig. 1 shows an example of a knife cylinder 3, on the circumference of six knives are arranged evenly distributed.
  • the To design knife cylinder 3 in such a way that one, two, three, four, five, seven, eight or ten knives or another number of knives can be fastened uniformly or evenly distributed from one another on its circumference.
  • the knife cylinder 3 and the pressure cylinder 2 are fastened and rotatably mounted in the machine frame 5 in such a way that these machine parts form an assembly as a whole, which can be removed from the main frame 13 of the machine as a whole and exchanged for another similar assembly.
  • each of the grooves contains a side wall 26, which represents a surface running radially to the cylinder 3.
  • the base surface 28 of each groove runs perpendicular to the first side wall 26 and the second side wall 27.
  • Each groove thus contains the three surfaces 26, 27 and 28.
  • each groove is open.
  • An insert 29 is inserted into each groove in such a way that the base 30 of the insert 29 bears against the base 28 of the groove.
  • Each insert 29 contains a bore 31 which passes through this insert completely in its axial direction in such a way that the geometric center of the bore 31 runs parallel to the base 30 of the insert 29.
  • a plurality of bores for example the bores 32, 33, 34 and 35, are machined into the inserts 29 transversely to their longitudinal direction and also parallel to the base area 30 in such a way that they intersect the bore 31.
  • a thread is worked into each of the bores 32, 33, 34 and 35, with which bellows cylinders 36, 37, 38 and 39 can be attached to the insert 29.
  • the distance 40 between the threaded bores 32 to 35 is essentially the same as the size, i.e. the max. Outside diameter of each bellows cylinder.
  • each insert 29 and the width 42 of each groove are selected such that commercially available bellows cylinders are screwed into the insert 29 and can be supported against the second side wall 27 in such a way that the knife 6 is positively pressed against the side wall 26 can, in order not to slip while the machine is running relative to the side wall 26 and thus the knife cylinder 3 and the web 1.
  • the bellows cylinders allow a sufficiently high contact pressure, so that sufficiently high pressure forces per knife as well as a sufficiently large stroke of the respective bellows cylinder and the insert 29 can be achieved in order to be able to remove the knives, for example the knife 6, from the knife cylinder 3 when the stroke subsides, or to press against the side wall 26 with a correspondingly low pretension that all knives, for example the knife 6, are slower
  • the speed of the knife cylinder 3 and thus slow passage past the printing cylinder 2 can be shifted such that the knives can work optimally with the printing cylinder 2.
  • the bores 31, 32, 33, 34 and 35 form a channel system which rotates with the knife cylinder 3.
  • This channel system has two openings, as a result of which this channel system can be connected to its surroundings, ie pressure medium can be filled in through one opening and the pressure medium can leave the channel system through the other opening.
  • One opening is closed by a screw 43, which is made possible by the fact that one end of the bore 31 is provided with a thread 44.
  • the other end of the bore 31 is provided with a thread 45 in a similar manner.
  • a special screw 46 is screwed into this thread 45.
  • the special screw 46 contains a bore 47 which is central to it and in which a pressure piston 48 is able to slide.
  • One end of the plunger 48 is provided with a thread 49 onto which at least one nut 50 is screwed. Between the nut 50 and the special screw 46, springs, for example disc springs 51, are lined up.
  • the special screw 46 is unscrewed from the insert 29 and the screw 43 is loosened, so that air in the bores can escape and the bores can be filled with pressure medium.
  • the screw 43 is tightened and the special screw 46 is screwed into the thread 45. If the special screw 46 has only been partially screwed into the thread 45, a pressure results in the channel system and thus in the bellows cylinders, which corresponds to the screw-in depth of the special screw 46. In this way, a pretensioning force is created for the initial holding and aligning of the knives, for example the knife 6.
  • the bores 31 to 35 are incorporated into a pressure bar 52, the position of the bores corresponding to that in the supplement 29.
  • the pressure bar is arranged so that it comes to rest against the second side wall 27 and the bellows cylinder, for example the bellows cylinder 37 presses the knife 6 with the interposition of a relatively narrow second insert 53 against the side wall 26.
  • the bellows cylinders and the knife 6 are tensioned analogously to the exemplary embodiment according to FIG. 2.
  • the embodiment according to FIG. 6 largely corresponds to that according to FIG. 2, but with the difference that bellows cylinders are selected in the embodiment according to FIG. 6 which do not have the outer contour similar to a sinusoidal line as the bellows cylinders according to FIG. 2.
  • the individual ones The bellows of the bellows cylinder according to FIG. 6 run relatively sharply towards one another and are at their end points or outer max. Diameter ⁇ 54 welded together in pairs.
  • the bellows cylinders according to the embodiment of FIG. 6 are known per se as so-called membrane bellows, whereas the bellows cylinders of the embodiment according to FIG. 2 are known per se as so-called miniature bellows.
  • Each of the two types of bellows cylinders are made of metal, in particular the bellows made of metal. This metal can be one or more layers.
  • the metal is preferably steel, in particular so-called stainless steel. Aluminum or brass or some other metal is also possible.
  • the side wall 26 of each groove faces the knife to be clamped, for example the knife 6, and the second side wall 27 faces away from the knife to be clamped.
  • Both side walls lie essentially radially, this being exactly the case for the first side wall 26 and approximating for the second side wall 27, since this side wall runs parallel to the side wall 26.
  • the insert 29 and the pressure bar 52 have an essentially trapezoidal cross section.
  • the surfaces of the insert 29 facing the knife 6 and the bellows cylinders are parallel to one another, whereas the base surface 30 of the insert 29 runs perpendicular to these two surfaces.
  • the side opposite the base area 30 is delimited by a piece of a circular arc, the curvature of which corresponds to the diameter of the knife cylinder 3 is the same and, due to the selected width 41 of the insert 29, is hardly to be regarded as an arc, but rather approximately as a straight line in cross section, for example in FIG. 2.
  • the radially outermost surface of the insert 29 in FIG. 2 represents a plane and not part of a cylinder circumference.
  • the cross section for the insert 29 would be an exact trapezoid.
  • the surfaces of the insert 29 and the pressure bar 52 lying radially on the inside in FIGS. 2 and 5, such as, for example, the base area 30 of the insert 29 correspond to the cross section of the groove 20, in particular the base area 28 of the slot 20.
  • each knife must be tensioned individually. If, however, a centrally arranged pressure generator according to FIG. 9 is provided, which is known per se from EP - A 0 115 783, it is possible to start from a central channel 55 which is in the center of the axis. of the knife cylinder 3 and is incorporated in parallel in this, via connecting bores 56, 57, 58, 59, 60 and 61, which are incorporated radially into the knife cylinder 3 and cut the central channel 55, that is to say are connected to it, all knives to loosen, pretension or tighten at once.
  • connection bore 61 Each of the radial connection bores, for example the connection bore 61, is provided with a thread 62 into which a pipe nut 63 can be screwed.
  • the tube nut 63 serves to attach a connecting tube 64 to the knife cylinder 3.
  • the other end of the connecting tube 64 are screwed to the insert 29 such that the pressure medium from the pressure generator of FIG. 9, starting from the central channel 55 and the radial connecting bores 56 to 61, into the bore 31 and thus into the bellows cylinders 36 to 39 and there Can develop pressures or forces.
  • connecting pipes 66 can be fastened to the knife cylinder 3 with the aid of the pipe nuts 63, the second ends of which can be connected to the bores 31 of the exemplary embodiment according to FIG. 5 by corresponding connecting pieces 65.
  • bores or openings 67 are incorporated in the knife cylinder 3 such that they open into the groove 20, for example, and have thus become part of the respective groove.
  • At least one bellows cylinder can be arranged in each opening, which is screwed to an insert 29 provided with a bore 31.
  • a number of such openings or bores 67 can be arranged one behind the other in the viewing direction of FIG. 10, so that a plurality of bellows cylinders 37, 36, 38 or 39 press the respective knife, for example knife 6, against the side wall 26 of the groove 20 together with the interposition of the insert 29 and tighten it with it.
  • a securing ring 68 can be inserted in a respective groove in order to provide support for the respective bellows cylinder and to enable the bellows cylinder to be mounted from the outside.
  • the pressure medium cylinders are arranged essentially in the circumferential direction.
  • diaphragm, miniature or other bellows can be used.
  • the inserts 29, pressure strips 52, connecting pipes 64 or 66 and the associated screw connections consist of metals such as aluminum or copper or in particular steel, for example stainless steel.
  • Pressure medium, in particular hydraulic oil, is filled into the channel system.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
  • Details Of Cutting Devices (AREA)
  • Shearing Machines (AREA)
EP19860200274 1985-03-06 1986-02-21 Cylindre à couteaux pour traiter des matériaux en bandes Expired EP0196688B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19853507929 DE3507929A1 (de) 1985-03-06 1985-03-06 Messerzylinder zum bearbeiten von bahnfoermigem gut
DE3507929 1985-03-06

Publications (3)

Publication Number Publication Date
EP0196688A2 true EP0196688A2 (fr) 1986-10-08
EP0196688A3 EP0196688A3 (en) 1987-01-07
EP0196688B1 EP0196688B1 (fr) 1989-06-14

Family

ID=6264374

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19860200274 Expired EP0196688B1 (fr) 1985-03-06 1986-02-21 Cylindre à couteaux pour traiter des matériaux en bandes

Country Status (6)

Country Link
US (1) US4671154A (fr)
EP (1) EP0196688B1 (fr)
JP (1) JPS61209896A (fr)
CA (1) CA1272441A (fr)
DE (3) DE3507929A1 (fr)
ES (1) ES8705281A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1989002813A1 (fr) * 1987-09-23 1989-04-06 Karl Kilper Dispositif pour la fixation de filets perforateurs sur des cylindres d'imprimeuses
DE3805379A1 (de) * 1987-10-29 1989-05-18 Hamilton Tool Co Messerzylinderanordnung
WO1991005641A1 (fr) * 1989-10-17 1991-05-02 Maschinenfabrik Goebel Gmbh Cylindre de coupe
GB2332165A (en) * 1997-12-13 1999-06-16 T & S Engineering Company Blade securing apparatus for a cutting roller

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4715250A (en) * 1986-06-27 1987-12-29 Rosemann Thomas J Rotary cutting cylinder and method of making same
EP0317672B1 (fr) * 1987-11-18 1993-04-07 Thomas J. Rosemann Cylindre de coupe rotative
US5119707A (en) * 1988-12-05 1992-06-09 Green Bay Engineering And Technical Service, Ltd. Clamp bar for machine roll
US5086683A (en) * 1990-12-13 1992-02-11 Tamarack Products, Inc. Apparatus for cutting and method
US5224408A (en) * 1990-12-13 1993-07-06 Tamarack Products, Inc. Apparatus for cutting
ES2051250A6 (es) * 1991-03-26 1994-06-01 Rojas Manuel Jimenez Mejoras en el objeto de la patente principal n{ 9100972 por:"dispositivo de sujecion de flejes en cilindros de perforacion y corte para maquinaria de artes graficas.
FI981036L (fi) * 1998-05-11 1999-11-12 Valmet Corp Kaksoisrotaatioleikkurin terän välyksen säätölaite
US7007580B2 (en) * 2002-04-11 2006-03-07 Goss International Americas, Inc. Apparatus for removably securing a cutting component
DE102007058816A1 (de) * 2007-12-05 2009-06-10 Krones Ag Schneidwerkzeug zum Schneiden von Etiketten
DE102009009820A1 (de) * 2009-02-20 2010-08-26 Krones Ag Schneidwerkzeug zum Schneiden von Etiketten
JP6398677B2 (ja) * 2014-12-11 2018-10-03 大日本印刷株式会社 横ミシン刃固定装置および横ミシン胴

Family Cites Families (12)

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Publication number Priority date Publication date Assignee Title
US2682306A (en) * 1950-09-22 1954-06-29 Schriber Machinery Company Tab cutter
US2652749A (en) * 1951-10-17 1953-09-22 Hagmeister Heinrich Toolholder
US3014511A (en) * 1959-03-12 1961-12-26 Kirsten Paul Arthur Rotary tool for woodworking and woodcutting machines
US3171454A (en) * 1963-07-30 1965-03-02 Wilton Corp Means for adjusting positions of jointer cutters
DE2021061C2 (de) * 1970-04-29 1983-07-07 Dr. Otto C. Strecker Kg, 6102 Pfungstadt Messeranordnung für einen Querschneider
US3793918A (en) * 1971-10-12 1974-02-26 H Huffman Cross perforating blade lock
DE2405000A1 (de) * 1974-02-02 1975-08-07 Hombak Maschinenfab Kg Messerwelle fuer holzzerspanungsmaschinen
DE2446722A1 (de) * 1974-09-30 1976-04-08 Bhs Bayerische Berg Vorrichtung zum querschneiden einer laufend bewegten bahn
US4055101A (en) * 1976-05-19 1977-10-25 Burroughs Corporation Roll fed rotary web device with improved perforator
DE3303628A1 (de) * 1983-02-03 1984-08-09 Maschinenfabrik Goebel Gmbh, 6100 Darmstadt Messerzylinder zum bearbeiten von bahnfoermigem gut
DE8302937U1 (de) * 1983-02-03 1983-05-26 Maschinenfabrik Goebel Gmbh, 6100 Darmstadt Messerzylinder zum bearbeiten von bahnfoermigem gut
US4604931A (en) * 1985-08-16 1986-08-12 Harris Graphics Corporation Quick change rotary punch

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1989002813A1 (fr) * 1987-09-23 1989-04-06 Karl Kilper Dispositif pour la fixation de filets perforateurs sur des cylindres d'imprimeuses
DE3731957A1 (de) * 1987-09-23 1989-04-13 Karl Kilper Vorrichtung zur befestigung von perforierlinien an zylindern bei druckmaschinen
DE3805379A1 (de) * 1987-10-29 1989-05-18 Hamilton Tool Co Messerzylinderanordnung
WO1991005641A1 (fr) * 1989-10-17 1991-05-02 Maschinenfabrik Goebel Gmbh Cylindre de coupe
US5159868A (en) * 1989-10-17 1992-11-03 Maschinenfabrik Goebel Gmbh Knife cylinder for processing weblike material
GB2332165A (en) * 1997-12-13 1999-06-16 T & S Engineering Company Blade securing apparatus for a cutting roller
GB2332165B (en) * 1997-12-13 2001-09-05 T & S Engineering Company Device and method for securing blades

Also Published As

Publication number Publication date
JPH0138636B2 (fr) 1989-08-15
EP0196688B1 (fr) 1989-06-14
CA1272441A (fr) 1990-08-07
ES552707A0 (es) 1987-05-16
DE8506462U1 (de) 1985-05-30
DE3507929A1 (de) 1986-09-11
EP0196688A3 (en) 1987-01-07
JPS61209896A (ja) 1986-09-18
DE3663904D1 (en) 1989-07-20
US4671154A (en) 1987-06-09
ES8705281A1 (es) 1987-05-16

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