EP0611187B1 - Rotierende Schneidvorrichtung - Google Patents

Rotierende Schneidvorrichtung Download PDF

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Publication number
EP0611187B1
EP0611187B1 EP19940400224 EP94400224A EP0611187B1 EP 0611187 B1 EP0611187 B1 EP 0611187B1 EP 19940400224 EP19940400224 EP 19940400224 EP 94400224 A EP94400224 A EP 94400224A EP 0611187 B1 EP0611187 B1 EP 0611187B1
Authority
EP
European Patent Office
Prior art keywords
bearing block
elastic means
cutting
vertical
stop
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 - Lifetime
Application number
EP19940400224
Other languages
English (en)
French (fr)
Other versions
EP0611187A1 (de
Inventor
Serge Chiloff
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.)
SOCIETE D'ETUDE DE MACHINES POUR LES ARTS GRAPHIQU
Original Assignee
D'etude De Machines Pour Les Arts Graphiques Ste
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 D'etude De Machines Pour Les Arts Graphiques Ste filed Critical D'etude De Machines Pour Les Arts Graphiques Ste
Publication of EP0611187A1 publication Critical patent/EP0611187A1/de
Application granted granted Critical
Publication of EP0611187B1 publication Critical patent/EP0611187B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • B26D7/265—Journals, bearings or supports for positioning rollers or cylinders relatively to each other
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B29/00—Counter-pressure devices acting on rolls to inhibit deflection of same under load, e.g. backing rolls ; Roll bending devices, e.g. hydraulic actuators acting on roll shaft ends
    • 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
    • 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
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B31/00—Rolling stand structures; Mounting, adjusting, or interchanging rolls, roll mountings, or stand frames
    • B21B31/16—Adjusting or positioning rolls
    • B21B31/20—Adjusting or positioning rolls by moving rolls perpendicularly to roll axis
    • B21B31/22—Adjusting or positioning rolls by moving rolls perpendicularly to roll axis mechanically, e.g. by thrust blocks, inserts for removal
    • B21B31/24—Adjusting or positioning rolls by moving rolls perpendicularly to roll axis mechanically, e.g. by thrust blocks, inserts for removal by screws

Definitions

  • the present invention relates to a rotary cutting apparatus usable more particularly in printing lines and shaping of folding cardboard boxes and labels self-adhesive.
  • the present invention relates to improvements made to a rotary cutting device of the aforementioned type allowing very significantly reduce the bending or deflection suffered by the cutting cylinder during a cutting operation and keep the cylinder rockets perfectly embedded superior cutting, even after resulting heating of a certain working period of the device.
  • a rotary cutting device comprises the features of claim 1.
  • Figure 1 is a partial vertical sectional view of a rotary cutting apparatus according to the invention, in the position in which it is stationary, before a work time.
  • Figure 2 is a vertical sectional view taken along the line II-II of figure 1.
  • Figure 3 is a partial sectional view, to a larger ladder, of an embodiment of a back pressure stop with elastic support, in the position it occupies after a certain period of work of the device.
  • the rotary cutting device which is partially shown in Figure 1, includes a frame consisting of two uprights parallel lateral 1, interconnected by crosspieces horizontal not shown. One side of the device is shown in Figure 1, the other side being symmetrical from the previous one. Each amount 1 is notched, in its part upper, of an opening 3 extending vertically, of rectangular shape and opening into the horizontal face higher of the amount.
  • an interchangeable cutting device consisting of basically two upper cutting cylinders 4 and lower 5, with parallel horizontal axes, between which must pass a tablecloth of paper or cardboard to cut.
  • the upper cutting cylinder 4 is extended, at each of its ends, by a coaxial rocket 4a, and it is integral with two raceways 4b located at a distance from the two faces fronts of the cutting cylinder 4 and between which is the engraved part of cylinder 4.
  • the cylinder of lower cut 5 is extended, at each of its ends, by a coaxial rocket 5a.
  • the raceways upper 4b having the same diameter which is slightly higher to that of the upper cutting cylinder 4, roll on the periphery of the lower cylinder 5 if it is smooth by constituting then an "anvil” cylinder, or else on raceways 5b of the lower cylinder if it is also engraved.
  • the diameter of the paths rolling bearing 4b is equal to that of the paths lower bearing 5b and to the original diameter of gears 7, 8, respectively linked to rockets 4a, 5a of the cutting cylinders 4, 5, outside the upright 1. These link gears 7, 8 are engaged one with each other and are rotated from the control of the device.
  • the rockets 4a and 5a of the cutting cylinders 4, 5 are respectively rotatably mounted in superimposed blocks forming bearings, namely upper and lower bearing blocks 9 10, engaged closely in the openings 3 and capable of sliding vertically in them.
  • Each upper bearing block 9 is extended, at its upper part, towards the interior of the device, by a part in overhang 9a extending above the extreme part of the upper cutting cylinder 4.
  • each block lower bearing 10 is extended, at its lower part, towards the interior of the device by a cantilever part 10a which extends below the extreme part of the cylinder lower cutting 5 and above a fixed insert stop 11.
  • This stop 11 is fixed, by means of screws, to the face internal of the corresponding amount 1 so that its face upper horizontal is located at a level slightly higher than where the lower edge of the opening is 3. Therefore the internal cantilevered part 10a of each lower bearing block 10 is normally supported on the upper face of the insert 11 and the lower face from this lower bearing block 10 is slightly apart from the lower edge of the opening 3.
  • a pressurizing frame 12 which includes a cross central unit 13 carrying, at each of its ends, a jack vertical pressurization 14.
  • the rod of this jack extends down, and its lower end is located just above the cantilever part 9a of the bearing block upper 9 and in contact with it.
  • Each vertical pressurizing cylinder 14 is mounted on the cross member 13 of the pressurizing frame 12, such so that the vertical axis of the jack 14 is contained in a vertical and transverse plane P passing through the lower stop 11 and located between the vertical and transverse plane median P1 of the neighboring upper raceway 4b and the neighboring upper bearing block 9.
  • At least one counterpressure stop 15, integral of the upper bearing block 9, of adjustable height, is interposed between each pair of upper bearing blocks 9 and lower 10.
  • This back pressure stop 15 is located substantially in the vertical and transverse median plane P2 common to the two upper 9 and lower 10 bearing blocks of the same pair of blocks.
  • Means are provided to adjust, as desired, the height of the adjustable back pressure stop (s) 15.
  • These means may include, for example, two vertical rods 16, crossing from top to bottom each upper bearing block 9, on either side of the spindle 4a of the upper cutting cylinder 4, and of which at least the lower parts 16a are threaded and screwed into corresponding tapped holes provided in the lower part of the upper block 9.
  • the two parts lower 16a rods 16 constitute the back pressure stop 15 supported by their lower front faces, on the upper face of the lower bearing block 10.
  • the two rods 16 are integral of respective pinions 17 engaged with a pinion common central 18 secured to a vernier 19. It is thus possible, by turning this vernier 19, to adjust the height of which the lower parts 16a of the rods 16 make projection below the bearing block 9 and consequently the spacing between the two blocks 9 and 10.
  • the pressurizing frame 12 When the rotary cutting device is pressurized, the pressurizing frame 12 extends horizontally and when each cylinder 14 is put under pressure, its rod is pushed down, against the bearing block upper 9.
  • the force F produced by the jack 14 is exerted towards the bottom in the vertical and transverse plane P passing through the axis of the corresponding jack 14 and it is collected by the fixed stop 11.
  • the external pressure force F directed downwards, opposes a first reaction force F1, directed upwards, acting between the raceways 4b and 5b and at a second reaction or back pressure force F2, directed upwards, acting between the two rockets 4a and 5a and tending to separate them from each other.
  • Such a built-in device for the rocket 4a operates satisfactorily at the start of a shift but after a while, the cutting cylinder 4 and the anvil cylinder 5 heats up and the resulting expansion causes a separation of the axes of these two cylinders 4 and 5.
  • This spacing is easily absorbed by the vertical cylinder 14 whose stem retracts somewhat, but because the axis of the upper cutting cylinder 4 moves upwards relative to the axis of the lower anvil cylinder 5 maintained fixed, each upper bearing 9 moves upwards by relative to the lower bearing 10 remaining fixed and the front face lower of back pressure stop 15 deviates from the upper support face of the lower bearing block 10, if although this back pressure stop no longer plays its role and that the backpressure force F2 decreases.
  • This elastic means 21 which can be composed, for example, Belleville washers or an elastomer block, is housed in a recess 22 formed in the upper face of the block lower bearing 10.
  • the elastic means 21 bears on the bottom 23 of hollow 22, bottom to which is applied normally the lower front face 16b of each rod 26.
  • the threaded lower part 16a of each rod 16 is extended downwards by an extreme part more small diameter 16c which extends to the front face lower 16b of the rod 16.
  • the elastic means 21 (washers Belleville or annular elastomer block) surrounds the extreme part of small diameter 16c and it is in abutment towards the top against the annular shoulder 24 formed between the part lower threaded 16a of the rod 16 and the end part 16b small diameter.
  • each rod 16 is adjusted so that its lower front face 16b either in contact with the bottom 23 of the hollow 22, as it is shown in Figures 1 and 2.
  • the elastic means 21 is strongly crushed.
  • the cutting cylinders 4 and 5 have heated up and dilated and the axis of rotation of the upper cylinder 4 moved upwards, then moving the front side away lower 16b of the back pressure stop 15 23 of the recess 22, as shown in FIG. 3.
  • the characteristics of the elastic means 21 are chosen so that this elastic element 21 continues to exert upward reaction or back pressure F2 which allows the installation of the spindle 4a of the upper cutting cylinder 4. Therefore the initial setting happens to be kept practically constant whatever the temperature of the cutting cylinders.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
  • Details Of Cutting Devices (AREA)

Claims (6)

  1. Rotationsschneidevorrichtung mit
    einem Stützgerüst,
    zwei übereinanderliegenden Schneidzylindern (4, 5) mit parallelen Achsen zwischen zwei vertikalen parallelen Stützen (1), nämlich einem oberen (4) und einem unteren (5) aufeinanderrollenden Schneidzylinder, die jeweils mit den aufeinanderrollenden Rollbereichen (4b, 5b) einstückig sind, wobei jeder Schneidzylinder (4, 5) an jedem Ende eine drehbar in einem Lagerblock (9, 10) montierte koaxiale Spindel (4a, 5a) aufweist, die vertikal verschiebbar auf den beiden entsprechenden Stützen (1) ist; wobei jeder obere Lagerblock (9) an seinem oberen Abschnitt in Richtung des Inneren der Vorrichtung durch einen Vorsprung (9a) verlängert ist, der durch eine Vorrichtung zur vertikalen Druckausübung (14), die am Oberteil der Vorrichtung montiert ist, nach unten mit Druck beaufschlagt ist, wobei jeder der unteren Lagerblöcke (10) an seinem Unterteil in Richtung des Inneren der Vorrichtung durch einen Vorsprung (10a) verlängert ist, der sich unterhalb eines Anschlags (11), der durch die entsprehende Stütze (1) getragen wird und mit sie in Kontakt steht, erstreckt,
    wobei ein elastisches Kupplungselement zwischen jedem Paar oberer und unterer Lagerblöcke (10) vorgesehen ist, das ein elastisches Element (21), das bei Kompression Druck ausübt, umfaßt, und den oberen Lagerblock gegenüber dem unteren Lagerblock nach oben drückt und einen begrenzten vertikalen Bewegungsweg für den oberen Lagerblock gegenüber dem unteren Lagerblock ermöglicht, wobei das elastische Kupplungselement unter andxerem einen mit dem oberen Lagerblock (9) einstückigen Gegendruck-Anschlag (15) umfaßt und sich gegen der unteren Lagerblock abstützen kann, wenn das elastische Element komprimiert ist, wobei die Aktionsachsen der elastischen Mittel (21) und der Gegendruckanschläge gegenüber den Achsen der Vorrichtungen zur Druckausübung (14) so versetzt sind, daß die Wirkungsachsen sich außerhalb der Achsen der Vorrichtungen zur Druckausübung (14) befinden, dadurch gekennzeichnet, daß das in der gleichen Weise wie das elastische Mittel ausgewählte elastische Mittel (21) ständig mit einer Reaktionskraft F2 nach obern drückt, die ausreicht, um ein permanentes Einspannen der Spindel (4a) des oberen Schneidzylinders (4) unabhängig von der Temperatur der Schneidzylinder (4,5) zu gewährleisten, sogar nachdem aufgrund von Erwärmung und Dilatation der Zylinder eine Versetzung der Gegendruckanschläge der unteren Lagerblöcke gegenüber den unteren Lagerblöcken erfolgt ist.
  2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet , daß sich das elastische Mittel (21) auf dem Boden (23) einer auf der Oberfläche des unteren Lagerblocks (10) gebildeten Vertiefung (22) abstützt.
  3. Vorrichtung nach einem der vorangehenden Ansprüche 1 oder 2, dadurch gekennzeichnet , daß der Gegendruckanschlag (15) durch den unteren Teil (16a) eines Stiftes (16) zum Einstellen der Höhe des Anschlags gebildet ist, wobei der untere Teil (16a) des Stiftes (16) nach unten durch einen Endabschnitt kleineren Durchmessers (16c) verlängert ist, wodurch dazwischen eine ringförmige Schulter (24) gebildet ist, wobei das elastische Mittel (21) den Endabschnitt kleinen Durchmessers (16c) umgibt und nach oben an der ringförmigen Schulter anschlägt.
  4. Vorrichtung nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet , daß das elastische Mittel (21) durch Belleville-Ringe oder durch einen den Endabschnitt kleinen Durchmessers (16c) des Stifts (16) umgebenden ringförmigen Elastomerblock gebildet ist.
  5. Vorrichtung nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet , daß jede Vorrichtung zur Druckausübung (14) so angebracht ist, daß die vertikale Achse der Vorrichtung (14) in einer vertikalen Ebene liegt und transversal (P) am Anschlag (11) vorbeigeht, der sich zwischen der vertikalen Ebene und der transversalen Mittellinie (P1) des benachbarten oberen Rollbereichs (4b) und dem benachbarten oberen Lagerblock (9) befindet.
  6. Vorrichtung nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet , daß der Gegendruckanschlag (15) ungefähr in der vertikalen Ebene und der transversalen Mittellinie (P2) angeordnet ist, die den beiden oberen (9) und unteren Lagerblöcken (10) des gleichen Lagerblockpaares gemeinsam ist.
EP19940400224 1993-02-11 1994-02-03 Rotierende Schneidvorrichtung Expired - Lifetime EP0611187B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9301520A FR2701419B1 (fr) 1993-02-11 1993-02-11 Appareil de découpage rotatif.
FR9301520 1993-02-11

Publications (2)

Publication Number Publication Date
EP0611187A1 EP0611187A1 (de) 1994-08-17
EP0611187B1 true EP0611187B1 (de) 1998-04-15

Family

ID=9443947

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19940400224 Expired - Lifetime EP0611187B1 (de) 1993-02-11 1994-02-03 Rotierende Schneidvorrichtung

Country Status (3)

Country Link
EP (1) EP0611187B1 (de)
DE (2) DE69409556T2 (de)
FR (1) FR2701419B1 (de)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH693824A5 (fr) * 1999-04-28 2004-02-27 Bobst Sa Dispositif de fixation et de guidage d'un palier sur un bâti.
DE102005022604A1 (de) * 2005-05-11 2006-11-16 Aichele Werkzeuge Gmbh Rotationsschneidvorrichtung, Verfahren zur Außerbetriebnahme einer Rotationsschneidvorrichtung und Verfahren zum Betrieb einer Rotationsschneidvorrichtung
CN101712163B (zh) * 2009-11-18 2012-07-18 佛山市南海富利包装机械有限公司 一种螺旋横切机刀轴结构
CN102825630B (zh) * 2012-08-29 2015-09-16 三明市普诺维机械有限公司 高速辊压模切刀模架
GB201703644D0 (en) 2017-03-07 2017-04-19 Elopak As Improvements in or relating to toller mounting arrangements

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE683058C (de) * 1937-05-01 1939-10-28 Alfred Winkler Einrichtung an Papierschneidwalzen, die mit harten Gegenwalzen arbeiten
GB1114778A (en) * 1965-09-17 1968-05-22 Loewy Eng Co Ltd Pre-stressed rolling mill
DE2750530A1 (de) * 1977-11-11 1979-05-17 Winkler Duennebier Kg Masch Rotationsstanze zum ausstanzen von formschnitten
US4553461A (en) * 1982-10-12 1985-11-19 Magna-Graphics Corporation Rotary web processing apparatus
DE3606147C1 (de) * 1986-02-26 1987-06-25 Ibsm Mehltretter Gmbh Vorrichtung zur Aufnahme von scherenartig zusammenwirkenden,kreisfoermigen Schneidwerkzeugen
FR2645790A1 (fr) * 1989-03-30 1990-10-19 Umat Appareil de decoupage rotatif
DE4037110A1 (de) * 1990-11-22 1992-05-27 Goebel Gmbh Maschf Einrichtung zum aendern des arbeitspunktes

Also Published As

Publication number Publication date
DE69409556T2 (de) 1998-09-24
DE69409556D1 (de) 1998-05-20
FR2701419A1 (fr) 1994-08-19
FR2701419B1 (fr) 1995-05-05
EP0611187A1 (de) 1994-08-17
DE611187T1 (de) 1995-05-18

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