EP0115783B1 - Cylindre à couteaux pour couper des bandes - Google Patents

Cylindre à couteaux pour couper des bandes Download PDF

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Publication number
EP0115783B1
EP0115783B1 EP84100223A EP84100223A EP0115783B1 EP 0115783 B1 EP0115783 B1 EP 0115783B1 EP 84100223 A EP84100223 A EP 84100223A EP 84100223 A EP84100223 A EP 84100223A EP 0115783 B1 EP0115783 B1 EP 0115783B1
Authority
EP
European Patent Office
Prior art keywords
knife
cylinder
knives
pressure
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.)
Expired
Application number
EP84100223A
Other languages
German (de)
English (en)
Other versions
EP0115783A3 (en
EP0115783A2 (fr
Inventor
Thomas Dipl.-Ing. Hermann
Josef Herd
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 EP0115783A2 publication Critical patent/EP0115783A2/fr
Publication of EP0115783A3 publication Critical patent/EP0115783A3/de
Application granted granted Critical
Publication of EP0115783B1 publication Critical patent/EP0115783B1/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
    • Y10T407/00—Cutters, for shaping
    • Y10T407/19—Rotary cutting tool
    • Y10T407/1906—Rotary cutting tool including holder [i.e., head] having seat for inserted tool
    • Y10T407/1926—Plural simultaneously usable separable tools in common seat or common clamp actuator for plural simultaneously usable tools
    • 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
    • Y10T409/00—Gear cutting, milling, or planing
    • Y10T409/30—Milling
    • Y10T409/30784—Milling including means to adustably position cutter
    • Y10T409/308568—Plural cutters
    • 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 knife cylinders with at least one groove for receiving a knife arranged essentially parallel to the axis of rotation of the knife cylinder, a pressure generator with a spring arranged between it and the knife cylinder and a pressure device arranged over the length of the respective knife for clamping the respective knife compared to the knife cylinder containing a channel system.
  • Knife cylinders of the type mentioned are used in machines for processing, such as, for example, cross-cutting or cross-perforating sheet-like material consisting of paper, plastic or metal foils, fabrics or the like, in order to produce cuts 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 inserted into a rotating knife cylinder in such a way that knives that have become blunt can be replaced without having to remove the entire cylinder from the respective processing machine. At least one knife is attached to each knife cylinder, but it is also possible to arrange a plurality of knives distributed around the circumference of the knife cylinder in order to achieve cuts which are shorter than the diameter of the knife cylinder.
  • the knives can work in the desired manner, they have to be set in relation to the web to be processed or a pressure cylinder which interacts with the knife cylinder. To make this possible again, the knives can only be non-positively attached to the knife cylinders.
  • the knives are usually braced against the knife cylinder with the aid of wedges of any type, for example as indicated in the figure of US Pat. No. 4,187,753.
  • Several screws are assigned to each knife and distributed over the length of the knife. If even a single blunt knife is to be replaced with a sharp knife, a large number of screws must be loosened and then tightened again. This replacement requires a considerable amount of time and therefore also means a considerable breakdown in the production that is to be achieved with the processing machine.
  • DE-A-2 355 290 proposes a quick-action clamping system which essentially contains a wedge and cylindrical clamping pieces.
  • Several cylindrical tensioning rollers are assigned to a knife, the tensioning of the knife relative to the knife cylinder being achieved by mutual tensioning of the rollers. After loosening only a single part, the entire length of the knife is loosened with the help of the previously published construction and can thus be quickly removed from the machine. By clamping this part, the knife can also be quickly clamped against a groove in the knife cylinder.
  • each knife must be adjusted relative to the associated pressure cylinder interacting with the knife cylinder. This is usually achieved by preloading all knives with a relatively low pressure. Thereafter, the knife cylinder is allowed to run off the printing cylinder while the path is running, the knives generally shifting in the radial direction by small amounts. Only when this alignment has been carried out are the knives clamped with full force. Because of the necessary alignment, the knives in question must be attached in a force-locking manner. However, since they should not shift during the operation of the facility, they must be tightened very tightly, so high forces are required.
  • DE-A-1 939 358 a device for fastening printing formes on forme cylinders of printing presses is also known, which contains a hydraulically acting pressure medium clamping system.
  • the pressure medium generator assigned to the system is attached to the forme cylinder.
  • the forces required to clamp printing forms are however, much less than those required for clamping knives. In this way, the clamping system proposed in DE-A-1 939 358 cannot provide any further suggestions for clamping knives.
  • This object is achieved by a plurality of pressure medium cylinders arranged distributed over the length of each knife and pressing the respective knife against the knife cylinder, a translation device arranged between a pressure medium cylinder and the associated knife and a channel system arranged within the knife cylinder, with which both the pressure generator and everyone Pressure medium cylinders are connected so that sheet-like material consisting of paper, plastic or metal foils, fabric or the like can be processed.
  • fill openings for pressure medium and drain openings for discharging undesired media located in the duct such as e.g. B. air may be provided.
  • 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 4 with the aid of corresponding bearings. 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.
  • Knife positions 5, 6, 7, 8, 9 and 10 are provided on the knife cylinder 3.
  • the knife positions 5 to 10 extend essentially in the direction of the geometric Axis of the knife cylinder 3 and are incorporated into 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.
  • the web 1 is cut transversely into individual sheets as it passes through the nip formed by the cylinders 2 and 3. These arches fall in the direction of arrow 11 out of the device of FIG. 1 and can be collected in a box, a tray or the like.
  • the knives are divided into several individual knives by grooves running transversely to their cutting edge, then the web 1 is not completely cut through transversely to their 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 its running direction. 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 that those points at which the web 1 is weakened by transverse perforations form articulation points in which the web 1 can be folded transversely to its running direction in a later zigzag folding process.
  • Grooves 12, 13, 14, 15, 16 and 17 are incorporated into the knife cylinder 3. These grooves extend over the entire working width of the knife cylinder 3.
  • a knife cylinder with six grooves distributed over its circumference is described.
  • the knife cylinder it is possible for the knife cylinder to contain only a single number or a number of grooves other than one or six, for example four grooves. Accordingly, there is a different number of knives processing the web 1; one knife is provided for each groove. But it is also possible that although there are grooves in the knife cylinder 3, only a part of these grooves is provided with a knife.
  • a bore 18, 19, 20, 21, 22 and 23 is machined into the knife cylinder 3 parallel to each groove 12 to 17. These holes also run over the entire working width of the knife cylinder 3, at least one pin 24 can be inserted into each hole and fastened there. The pin 24 thus forms a fulcrum for at least one lever 25.
  • This lever 25 has two lever arms 26 and 27, one side of the lever 25 is provided with a curve 28 in the manner of a cam.
  • the lever 25 can be pivoted about the pin 24 either in the groove 12 or in a pocket-like extension 29 of the groove 12.
  • a pressure cylinder 30, which contains a piston 31, is also assigned to the lever 25.
  • the pressure cylinder 30 is screwed into a corresponding thread 32 machined into the knife cylinder 3 and fastened there.
  • the piston 31 of the pressure cylinder 30 can be moved by a pressure medium which reaches one side of the piston 31 through the bore 35.
  • a knife 33 is inserted into the groove 12, the cutting edge of which can be divided into individual partial cutting edges continuously or else by transverse grooves.
  • At least one insert 34 is arranged between the knife 33 and the lever 25, whereby this insert 34 can also be as long as the knife 33.
  • the insert 34 can be made of steel, copper or plastic. Instead of a relatively wide insert 34, it is also possible to push several smaller inserts made of different materials between the knife 33 and the lever 25. In this way, the force transmitted by the piston 31 to the lever 25 and finally via the knife to the right wall of the groove 12 in FIG. 2 can extend over an axial region of the knife 33 which is wider than the width of the lever 25th
  • the lever arms 26 and 27 of the lever 25 are different in length from one another, for example the lever 26 is five times longer than the lever 25. In this way, the force caused by the piston 31 can be translated before it flows onto the knife 33 . In the exemplary embodiment, the force is increased five times due to the existing lever arm ratios. However, the degree of amplification can also be lower, for example four times, three times or even only two times.
  • a piston 31 and a lever 25 are assigned to each pressure cylinder 30.
  • a large number of levers 25, 25 ', 25 ", 25"' etc. and pressure cylinders 30, 30 ', 30 ", 30 ... etc. are assigned to the knife 33.
  • the pressure cylinders 30 and levers 25 are at regular intervals In this way, the knife 33 can be non-positively fastened over its entire length in the groove 12. This frictional connection is necessary because the knife 33 is perfectly aligned with the thickness of the web 1 and the distance of the knife cylinder 3 must be aligned with the surface of the printing cylinder 2.
  • Knife cylinder 3 inserted knives in contact with the web 1 or with the surface of the printing cylinder 2. Due to the low fastening forces with which the knife or knives are held in the knife cylinder 3 the knives can shift slightly in the radial direction relative to the surface of the printing cylinder 2 during the rolling process and thus the alignment necessary for the cutting or perforating process receive.
  • This knife alignment is done at a rather slow speed.
  • the machine is stopped again in order to finally and firmly clamp the knives in the correct position with strong forces on the knife cylinder 3 for the subsequent, much faster working process.
  • a plurality of fastening devices in the form of pressure cylinders 30, 30 ', 30 "etc. and pistons 31, 31', 31" etc. are assigned to the knife 33 assigned to the groove 12.
  • a further knife can be inserted in the groove 15 in a corresponding manner and fastened in a corresponding manner by corresponding pressure cylinders 36.
  • a pressure cylinder 36 for clamping this knife, but several pressure cylinders 36, 36 ', 36 ", etc. are arranged distributed over the entire width of the knife.
  • the pressure cylinders 36 as can be seen in particular from FIG another level, such as the analog pressure cylinders 30 provided for the knife 33. This is done both for reasons of space and for reasons of the strength of the knife cylinder 3.
  • the groove 14 is assigned a knife 37 with a pressure cylinder 38
  • the groove 16 is a knife 39 with a pressure cylinder 40.
  • the grooves 13 and 17 are provided with knives and pressure cylinders in a corresponding manner.
  • the bore 35 is part of a channel system which is incorporated into the interior of the knife cylinder 3.
  • Each printing cylinder for example the printing cylinders 30, 30 ', 30 ", 30"', 36, 36 ', 36 “, 36"', 38, 38 ', 38 ", 40, 40', 40” is essentially such Assigned radially extending in the knife cylinder 3 bore. All of these bores open into a common channel 43, which is preferably arranged in the center of the knife cylinder 3. This channel 43 extends over the entire working width of the knife cylinder 3, as well as over at least one of the two axle journals of the knife cylinder 3.
  • the knife cylinder 3 is rotatably supported in the side wall 4 by the bearing 44.
  • the associated journal 45 is provided with a threaded bore 46 into which a pressure cylinder 47 is screwed as a pressure generator.
  • the associated piston 48 is supported with the interposition of a disc 49 with a return spring 50 on another piston 51.
  • a threaded pin 52 is fastened such that the piston 51 and the threaded pin 52 preferably consist of the same machine part.
  • a sleeve 53 is screwed onto the threaded pin 52 and is supported against the cover 56 with the interposition of an axial bearing 54 and a package of disc springs 55.
  • the piston 51 is guided by a feather key or the like. 57a and a corresponding groove 57b in the sleeve 58.
  • the cover 56, the bushing 58 and your further bushing 59 are screwed into a uniform housing by a plurality of screws 58a, which are arranged at regular intervals around the circumference of the preferably round bushing 58.
  • the sleeve 53 is provided with a hexagon 60, with the help of z. B. the sleeve 53 can be rotated from the outside by attaching a wrench. By turning the sleeve 53, the threaded pin 52 is displaced due to the threaded connection, and thus the piston 51 connected thereto and the piston 48 of the pressure medium cylinder 47.
  • the bushing 59 contains at least two bores 61 and 62 which run essentially in the radial direction.
  • a bushing 63 is inserted into the bore 61.
  • the sleeve 63 is firmly connected to the sleeve 59 by screws 64.
  • the sleeve 63 in turn is also provided with a bore 65, into which threads are partially incorporated.
  • a spindle 66 engages in these threads.
  • One end of the spindle 66 protrudes through the bush 63 to the outside and is provided with a square 67.
  • the other end of the spindle 66 is provided with a cone 68 in the manner of a valve needle. This cone can engage in a corresponding counter cone of the bores 69.
  • the bore 69 is machined into the bearing journal 45 in the radial direction and opens into the channel 43.
  • Another bore 70 is inclined, machined both in the sleeve 59 and in the sleeve 63. At its outer end, threads are cut into the bore 70 so that a pressure indicator can be connected at this point and / or pressure medium can be introduced into the channel system containing the channel 43.
  • a bushing 71 is inserted into the bore 62.
  • a spindle 72 can be rotated in this bushing 71 and thus displaced in the radial direction.
  • the cone 73 of the spindle 72 is connected to a further radial bore 74 and the channel 43.
  • An oblique, opening bore 75 contains at its outer end a thread 76 to which a drain line, a vacuum pump or the like can be connected.
  • bores 77 are machined into the inserts for the knives, for example the insert 34.
  • a compression spring 78 is inserted into each bore 77. With the help of the compression spring 78, a knife can be held in the groove assigned to it with slight force, so that it is possible to rotate the knife cylinder 3 for the purpose of inserting a further knife without the knife inserted first falling out of its groove.
  • a pressure medium such as e.g. B. Fill hydraulic oil into the channel system formed by the holes 69, 74, the channel 43 and the holes 41, 42 and 35, etc. This is particularly possible if a vacuum line is connected to the thread 76. This allows the duct system to be easily vented, so that the pressure medium can reach all points of the duct system. If sufficient pressure medium has been filled in, the spindles 66 and 72 are displaced radially inward by rotation, the cones of the two spindles seal the channel system to the outside. Then the hexagon 60 is rotated. This in turn allows piston 48 to be shifted to the left in FIG.
  • a pressure medium such as e.g. B. Fill hydraulic oil into the channel system formed by the holes 69, 74, the channel 43 and the holes 41, 42 and 35, etc. This is particularly possible if a vacuum line is connected to the thread 76. This allows the duct system to be easily vented, so that the pressure medium can reach all points of the duct system. If sufficient pressure medium
  • the piston 48 can be displaced not only by rotating the sleeve 53 but also by extending the disc springs 55 lined up to form a package.
  • the disc springs ensure that the pressure within the pressure medium is maintained within an area due to their construction, for example when small amounts of the pressure medium should escape from the duct system as a result of leaks. This prevents the knife or knives from loosening undesirably during the rotation of the knife cylinder 3.

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)
  • Treatment Of Fiber Materials (AREA)

Claims (3)

1. Cylindre à couteaux (3) qui comprend au moins une rainure (12 17) dans laquelle se place un couteau (33, 37, 39) essentiellement parallèle à l'axe de rotation du cylindre à couteaux (3), un appareil producteur de pression (47) comportant un ressort intercalé entre lui et le cylindre à couteaux et des points de compression répartis sur toute la longueur du couteau (33, 37, 39) pour la fixation du couteau (33, 37, 39) correspondant par rapport au cylindre à couteaux (3) qui contient un système de canalisations, caractérisé en ce que le dispositif comporte plusieurs cylindres à milieu de pression (30, 30', 30", 30"', 36, 36', 36", 38, 40) répartis sur toute la longueur de chaque couteau (33, 37, 39) et poussant le couteau correspondant (33, 37, 39) contre le cylindre à couteaux (3), un dispositif de transmission (25, 26, 27) placé entre chaque cylindre à milieu de pression (30, 36, 38, 40) et le couteau correspondant (33, 37, 39) et un système de canalisations (35, 41, 42, 43, 69, 73) situé à l'intérieur du cylindre à couteaux (3) et auquel sont reliés l'appareil producteur de pression (47) et les différents cylindres à milieu de pression (30, 36, 38, 40), ce qui permet le façonnage de produits (1) en forme de bande constitués par du papier, des feuilles de matière plastique ou de métal, de tissu ou des matériaux analogues.
2. Dispositif selon la revendication 1, caractérisé par au moins un alésage (70) ménagé dans le système de canalisations (35, 41, 42, 43. 69, 73) pour l'introduction du milieu de pression.
3. Dispositif selon la revendication 1, caractérisé par des raccords (76, 77) pour l'évacuation des milieux qui se trouvent dans le système de canalisations.
EP84100223A 1983-02-03 1984-01-11 Cylindre à couteaux pour couper des bandes Expired EP0115783B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19833303628 DE3303628A1 (de) 1983-02-03 1983-02-03 Messerzylinder zum bearbeiten von bahnfoermigem gut
DE3303628 1983-02-03

Publications (3)

Publication Number Publication Date
EP0115783A2 EP0115783A2 (fr) 1984-08-15
EP0115783A3 EP0115783A3 (en) 1986-08-20
EP0115783B1 true EP0115783B1 (fr) 1989-01-04

Family

ID=6189936

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84100223A Expired EP0115783B1 (fr) 1983-02-03 1984-01-11 Cylindre à couteaux pour couper des bandes

Country Status (4)

Country Link
US (1) US4594928A (fr)
EP (1) EP0115783B1 (fr)
JP (1) JPS59152098A (fr)
DE (1) DE3303628A1 (fr)

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DE8506462U1 (de) * 1985-03-06 1985-05-30 Maschinenfabrik Goebel Gmbh, 6100 Darmstadt Messerzylinder zum bearbeiten von bahnfoermigem gut
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DE9017026U1 (de) * 1990-12-17 1991-03-07 Michael Weinig AG, 6972 Tauberbischofsheim Messerkopf
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DE4211187A1 (de) * 1992-04-03 1993-10-07 Goebel Gmbh Maschf Zylinder zum Bearbeiten
US6532854B2 (en) * 1994-01-21 2003-03-18 Best Cutting Die Company Cutting die clamping mechanism
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US7007580B2 (en) * 2002-04-11 2006-03-07 Goss International Americas, Inc. Apparatus for removably securing a cutting component
US20070068408A1 (en) * 2003-04-23 2007-03-29 Christmann Klaus L Rotary roller printing press
EP1704108A1 (fr) 2004-01-16 2006-09-27 König & Bauer AG Appareil de pliage d'une presse a papier en bobine
CN1332788C (zh) * 2004-02-24 2007-08-22 致伸科技股份有限公司 直立滚动式多功能裁切装置
US7735531B2 (en) * 2006-08-10 2010-06-15 Les Produits Gilbert Inc. Planing head for a planing machine and method of manufacture thereof
DE102007058816A1 (de) * 2007-12-05 2009-06-10 Krones Ag Schneidwerkzeug zum Schneiden von Etiketten
CN114438765B (zh) * 2022-01-10 2023-02-03 盐城市华阜服饰玩具有限公司 一种毛绒玩具布料裁剪装置

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Also Published As

Publication number Publication date
DE3303628C2 (fr) 1988-12-29
US4594928A (en) 1986-06-17
EP0115783A3 (en) 1986-08-20
JPS59152098A (ja) 1984-08-30
DE3303628A1 (de) 1984-08-09
EP0115783A2 (fr) 1984-08-15
JPH0474156B2 (fr) 1992-11-25

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