EP0272526A2 - Dispositif de soutien dans l'évidement d'un cylindre - Google Patents

Dispositif de soutien dans l'évidement d'un cylindre Download PDF

Info

Publication number
EP0272526A2
EP0272526A2 EP87118056A EP87118056A EP0272526A2 EP 0272526 A2 EP0272526 A2 EP 0272526A2 EP 87118056 A EP87118056 A EP 87118056A EP 87118056 A EP87118056 A EP 87118056A EP 0272526 A2 EP0272526 A2 EP 0272526A2
Authority
EP
European Patent Office
Prior art keywords
support bar
support
pit
projections
cylinder
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
EP87118056A
Other languages
German (de)
English (en)
Other versions
EP0272526A3 (en
EP0272526B1 (fr
Inventor
Christian Martin Michael Fischer
Detlef Fred Stork
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.)
Koenig and Bauer AG
Original Assignee
Koenig and Bauer 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 Koenig and Bauer AG filed Critical Koenig and Bauer AG
Priority to EP91116811A priority Critical patent/EP0479266B1/fr
Publication of EP0272526A2 publication Critical patent/EP0272526A2/fr
Publication of EP0272526A3 publication Critical patent/EP0272526A3/de
Application granted granted Critical
Publication of EP0272526B1 publication Critical patent/EP0272526B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F27/00—Devices for attaching printing elements or formes to supports
    • B41F27/12—Devices for attaching printing elements or formes to supports for attaching flexible printing formes
    • B41F27/1293—Devices for filling up the cylinder gap; Devices for removing the filler

Definitions

  • the invention relates to a support device in a cylinder pit of a plate or blanket cylinder according to the preamble of claim 1.
  • Cylinder pits in printing unit cylinders allow pressure relief in the area of the cylinder pits to deflect a respective impression cylinder and are therefore the main reason for the build-up of bending vibrations that lead to streaking on a printed product.
  • DE-PS 34 34 642 a deflection-free support device has already become known. However, this does not have a cylinder-wide pit for receiving clamping devices and pressure plate ends, but rather consists of rectangular recesses which are separated from one another by webs. The webs are adapted to the curvature of the plate or rubber cylinder, so that a counter cylinder can roll on it without jolts.
  • the respective printing plate or the blanket must be provided with more or less wide slots, depending on the width of the webs, so that the printing plate or the blanket into the clamping elements can be threaded without overlapping the webs.
  • Printing plates or blankets with such slits are provided, but lose stability especially in the clamping area, so that tearing is possible. In particular, it is difficult to thread the beginning or end of the printing plate or blanket.
  • the invention has for its object to provide a support device in a pit of a plate or blanket cylinder, which makes it possible to use printing plates or blankets, the ends of which need not be specially designed, and also the insertion of the printing plate or blanket ends in the plate or blanket tensioning device are not hindered by the support device.
  • the support device should be as long as possible.
  • the advantages that can be achieved with the invention are, in particular, that the effectiveness of the reduction of the cylinder bumps during the passage through a long pit is increased further, the support strip can be easily removed from the pit or lowered into it when a printing plate or rubber blanket is inserted into the tensioning device to be threaded.
  • a plate or rubber cylinder 1 has an axially parallel pit 2.
  • the clamping elements 3; 4 are, for example, as a clamping spindle 3; 4 executed and each have a device (not shown) for receiving a printing plate or blanket end 8; 9 on.
  • Between the clamping spindles 3; 4 is in the middle of the pit 2 in one pit-long groove 12 a holding rail 11 screwed to the base 13 of the groove 12 by means of several fastening screws 14.
  • the holding rail 11 is almost pit-long and has several depressions 18 at intervals in the longitudinal direction of the pit.
  • Each recess 18 has a projection 21 directed to the left, which projects into the recess 18, starting on a right side 19.
  • This projection 21 each has a slope 20 inclined in the direction of the cylinder axis (wedge).
  • a support bar 22 is placed on the holding rail 11 and wedged with it.
  • the support bar 22 is not quite pit-long, it is approximately 9/10 of the cylinder pit length and has a number of vertical projections 24 on its underside 23.
  • the projections 24 are provided with wedges 25 directed to the right and on one side.
  • a free space 28 for receiving the projections 21 is provided between you and an underside 23 of the support bar 22.
  • the wedge inclination angle of the wedges 25 is designed such that it complements the bevels 20 of the projections 21 to 180 °.
  • the support bar 22 is placed on the holding rail 11 in such a way that the projections 24 each dip into a recess 18 in the holding rail 11.
  • the support bar 22 is shifted horizontally to the right until the wedge surface 20 of the projection 21 and a wedge surface 26 of the wedge 25 come into frictional engagement with one another.
  • the projections 21 of the holding rail 11 are made somewhat shorter than the spaces 28 formed by the wedges 25 and the underside 23 of the holding rail 11, so that the projections 21 can always engage in the spaces 28 until their wedge surface 20 is on the Wedge surface 26 of the wedge 25 and at the same time with an upper side 30 of the projections 21 rest on the underside 23 of the support strip 22.
  • the support bar 22 is wedged with the holding rail 11 by means of a clamping element designed as a truncated cone 27.
  • the truncated cone 27 is arranged at a left end of the pit 2 in a vertical bore 29 in the plate or rubber cylinder 1.
  • the bore 29 intersects the pit 2 at its left end, so that there is a vertical gap through which a left end 32 of the support bar 22, which is bevelled according to the angle of inclination of the truncated cone 27, projects into the bore 29.
  • the truncated cone 27 has a bore 34 in the middle for receiving a pressure screw 33.
  • the pressure screw 33 protrudes through the bore 34 and ends in a threaded hole 36 in the plate or rubber cylinder 1 in the extension of the bore 29.
  • the truncated cone 27 When the pressure screw 33 is tightened, the truncated cone 27 is moved vertically downward and acts with its conical surface 37 from above on the slope 32 of the support bar 11, so that it is pushed horizontally to the right, in the manner of a displaceable bayonet lock in the wedge position and held there.
  • the pressure screw 33 Below the truncated cone 27 and above the threaded hole 36, the pressure screw 33 has a collar 38 which, when the pressure screw 33 is unscrewed, presses against the truncated cone 27 from below and pushes it vertically upward from a wedge position. In order to be able to remove the support bar 22 from the cylinder pit 2, this must be shifted horizontally to the left.
  • a gap 42 is provided at a right end of the cylinder pit 2 between a cylinder wall 41 and a right end of the support bar 22, into which a lever tool 43 can be inserted to engage in a To reach engagement point 44 in the support bar 22.
  • the lever tool 43 When the lever tool 43 is actuated, it is supported on the cylinder wall 41 and displaces the support bar 22 to the left, so that the projections 21 come out of engagement with the spaces 28.
  • the support bar 22 can now be removed vertically upwards from the cylinder pit 22. After removal of the support bar 22, there is sufficient space in the cylinder pit 2 around the pressure plate or blanket ends 8; 9 to be able to thread freely into the clamping devices 3, 4. After threading, the support bar 22 is reinstalled.
  • the support bar 2 extends so far out of the pit 2 that the diameter of the cylinder 1 at this point is then equal to the diameter of the cylinder body 1 with the pressure plate 8 or rubber blanket 9.
  • the support bar 22 naturally protrudes from the pit 2 in a correspondingly adapted manner.
  • An end face 39 of the support bar 22 made of steel or hard plastic can be coated with a tough elastic material.
  • the narrow pit gap between the two printing plate or blanket ends 8; 9 is completely filled and covered by the support bar 2.
  • a support bar 46 is provided, which has two parallel, z. B. rectangular, grooves 48, 49.
  • the support bar 46 is inserted from a cylinder end face into an upwardly tapering groove 56, 57 on the groove base 13.
  • the support bar 46 is fixed or released by means of the previously described clamping and releasing device 27, 43.
  • the rail 53 has z. B. the shape of a longitudinally slotted rectangular tube, so that a, the two grooves 48, 49 separating web 54 comes to rest exactly in the slot 56 of the rail 53.
  • a support bar 58 which has two outwardly directed, parallel, rectangular projections 61, 62 on its foot part 59. Underneath, a round body 63 is welded under a lower edge 64 of the support bar 58, which extends at an angle ⁇ to an underside 67 of the projections 61, 62.
  • This support strip 58 is inserted from the cylinder end, with a left end 65 first, into a circular groove 66, which is also inclined at an angle ⁇ to the cylinder axis, until the undersides 67, 68 of the projections 61, 62 are flat on a base 60 the cylinder pit 2 come to rest.
  • the support bar 58 is held or released from this position in accordance with the description in the first exemplary embodiment (FIG. 3) by means of the truncated cone 27 or lever tool 43.
  • a support bar 71 which consists of individual links 73 which are connected to one another by means of coupling 72.
  • the links 73 each have a projection 74 on the right and a slot 76 of the same size on the left at the same height, so that two links 73 arranged one behind the other fit together exactly.
  • Each link 73 has a hollow body 75 at a lower end, into which the coupling 72 engages so as to be displaceable. So it is possible that the links 72 can be completely pushed into one another and thus form a continuous end face 39.
  • the chain consisting of links 73 coupling 72 can be threaded laterally from a cylinder face or from above at a cylinder pit end between a bearer ring 77 and a pressure surface 78 into a guide groove which is directly or indirectly fastened to the cylinder 1 and runs parallel to the cylinder axis.
  • a support bar 79 is provided, which is arranged in the cylinder pit 2 so that it can be lowered vertically but not horizontally.
  • the support bar 79 has a comb-like distribution over its entire length of a plurality of vertical inclined projections 81, with which they lie flat on a number of inclined projections 82 corresponding to the number of the projections 81 of a horizontally displaceable support rail 83 and are held by means of several slide guides 84.
  • the slide guides 84 each consist of an upwardly open circular groove 80 in a respective projection 82 of the support rail 83 and a cylindrical lower part 90 of the projections 81 of the support rail 79, each of which is adapted to the circular groove 80.
  • the support rail 83 is in a longitudinal groove 86 in the bottom 85 of the pit 2 mounted horizontally, but not vertically.
  • the support rail 83 is formed at one end as a rack 87 and is in meshing engagement with a spur gear 88.
  • the spur gear 88 is rotatably mounted in the pit 2 in the cylinder body 1 and has a receptacle on an upwardly directed side surface 89 arranged parallel to the groove base 85 91 for a tool 92.
  • the support rail 83 When the spur gear 88 rotates clockwise, the support rail 83 is shifted horizontally to the right.
  • the vertically guided support bar 79 slides down, forcibly guided by the guide 84, so that the projections 81 come to lie in spaces 94 between two projections 82 and the projections 82 in spaces 93 between two projections 81.
  • the support bar 79 depending on the displacement of the support rail 83, can be lowered more or less deeply, so that the threading of the printing plate or rubber blanket ends 8; 9 is not hindered.

Landscapes

  • Supply, Installation And Extraction Of Printed Sheets Or Plates (AREA)
EP87118056A 1986-12-24 1987-12-07 Dispositif de soutien dans l'évidement d'un cylindre Expired - Lifetime EP0272526B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP91116811A EP0479266B1 (fr) 1986-12-24 1987-12-07 Dispositif de soutien dans l'évidement d'un cylindre

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3644501 1986-12-24
DE19863644501 DE3644501A1 (de) 1986-12-24 1986-12-24 Stuetzeinrichtung in einer zylindergrube

Related Child Applications (1)

Application Number Title Priority Date Filing Date
EP91116811.0 Division-Into 1991-10-02

Publications (3)

Publication Number Publication Date
EP0272526A2 true EP0272526A2 (fr) 1988-06-29
EP0272526A3 EP0272526A3 (en) 1989-09-20
EP0272526B1 EP0272526B1 (fr) 1992-11-11

Family

ID=6317241

Family Applications (2)

Application Number Title Priority Date Filing Date
EP87118056A Expired - Lifetime EP0272526B1 (fr) 1986-12-24 1987-12-07 Dispositif de soutien dans l'évidement d'un cylindre
EP91116811A Expired - Lifetime EP0479266B1 (fr) 1986-12-24 1987-12-07 Dispositif de soutien dans l'évidement d'un cylindre

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP91116811A Expired - Lifetime EP0479266B1 (fr) 1986-12-24 1987-12-07 Dispositif de soutien dans l'évidement d'un cylindre

Country Status (5)

Country Link
US (1) US4790245A (fr)
EP (2) EP0272526B1 (fr)
JP (1) JPH0641203B2 (fr)
DE (3) DE3644501A1 (fr)
SU (1) SU1630606A3 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0445645A1 (fr) * 1990-03-08 1991-09-11 Heidelberger Druckmaschinen Aktiengesellschaft Cylindre d'impression pour machines d'impression rotatives

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3928640A1 (de) * 1989-08-30 1991-03-14 Roland Man Druckmasch Gummituchzylinder fuer bogenrotations-offsetdruckmaschinen
DE4034767A1 (de) * 1989-12-01 1991-06-06 Heidelberger Druckmasch Ag Druckwerkszylinder fuer rotationsdruckmaschinen
DK1310363T3 (da) * 1999-12-02 2004-03-29 Koenig & Bauer Ag Trykværk i en rotationstrykkemaskine

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB191504018A (en) * 1915-03-13 1916-01-13 Alexander Allerton Kil Tallent An Improved Method of Attaching Engraved Sheets to Cylinders for Rotary Intaglio Printing.
US1506859A (en) * 1924-02-12 1924-09-02 Owen Malcolm Printing cylinder
DE701996C (de) * 1937-11-27 1941-01-28 Koenig & Bauer Schnellpressfab Mit einer biegsamen Druckplatte versehener Formzylinder fuer Bogen-Rotationstiefdruckmaschinen
DE2437758A1 (de) * 1974-08-06 1976-02-26 Koenig & Bauer Ag Vorrichtung zum befestigen von druckplattenspannvorrichtungen auf formzylindern
DE2804556B1 (de) * 1978-02-03 1979-06-07 Roland Offsetmaschf Abnehmbare Kanalabdeckung von Zylinderkanaelen bei Druckmaschinen
EP0060939A1 (fr) * 1981-03-20 1982-09-29 M.A.N.-ROLAND Druckmaschinen Aktiengesellschaft Cylindre de plaque avec dispositif de fixation des plaques
CH643780A5 (de) * 1978-12-11 1984-06-29 Roland Man Druckmasch Tiefdruckzylinder fuer bogen-rotations-tiefdruckmaschinen.

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1654431A (en) * 1925-03-04 1927-12-27 Pickup William Rotary intaglio printing machine
US1545791A (en) * 1925-03-28 1925-07-14 Owen Malcolm Printing cylinder
GB364594A (en) * 1929-07-01 1932-01-06 Vogtlaendische Maschinenfabrik Form cylinder for rubber printing machines
DE640262C (de) * 1934-12-14 1936-12-29 E H Wilhelm Stein Dr Ing Vorrichtung zum Aufspannen von biegsamen Druckformen auf dem Formzylinder von Rotationsdruckmaschinen
JPS4219361Y1 (fr) * 1964-08-05 1967-11-09
DD150573A1 (de) * 1980-05-13 1981-09-09 Klaus Goerner Vorrichtung zum fuehren und halten der bedruckstoffbahnen an gummizylindern von rollenrotationsdruckmaschinen
DE3337111C2 (de) * 1983-04-06 1985-05-09 Albert-Frankenthal Ag, 6710 Frankenthal Tiefdruckformzylinder
DE3326215C2 (de) * 1983-07-21 1986-04-03 M.A.N.- Roland Druckmaschinen AG, 6050 Offenbach Vorrichtung zum Aufspannen einer Druckplatte oder eines Gummituches
DE3434642C1 (de) * 1984-09-21 1986-06-19 M.A.N.- Roland Druckmaschinen AG, 6050 Offenbach Stoßfreie Druckplatten- und Gummituchspannvorrichtung an Druckwerkszylindern von Rotationsdruckmaschinen
DE3540581A1 (de) * 1985-11-15 1987-05-21 Roland Man Druckmasch Druckwerkzylinder mit einem in dessen zylindergrube angeordneten fuellstueck

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB191504018A (en) * 1915-03-13 1916-01-13 Alexander Allerton Kil Tallent An Improved Method of Attaching Engraved Sheets to Cylinders for Rotary Intaglio Printing.
US1506859A (en) * 1924-02-12 1924-09-02 Owen Malcolm Printing cylinder
DE701996C (de) * 1937-11-27 1941-01-28 Koenig & Bauer Schnellpressfab Mit einer biegsamen Druckplatte versehener Formzylinder fuer Bogen-Rotationstiefdruckmaschinen
DE2437758A1 (de) * 1974-08-06 1976-02-26 Koenig & Bauer Ag Vorrichtung zum befestigen von druckplattenspannvorrichtungen auf formzylindern
DE2804556B1 (de) * 1978-02-03 1979-06-07 Roland Offsetmaschf Abnehmbare Kanalabdeckung von Zylinderkanaelen bei Druckmaschinen
CH643780A5 (de) * 1978-12-11 1984-06-29 Roland Man Druckmasch Tiefdruckzylinder fuer bogen-rotations-tiefdruckmaschinen.
EP0060939A1 (fr) * 1981-03-20 1982-09-29 M.A.N.-ROLAND Druckmaschinen Aktiengesellschaft Cylindre de plaque avec dispositif de fixation des plaques

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0445645A1 (fr) * 1990-03-08 1991-09-11 Heidelberger Druckmaschinen Aktiengesellschaft Cylindre d'impression pour machines d'impression rotatives

Also Published As

Publication number Publication date
EP0272526A3 (en) 1989-09-20
JPH0641203B2 (ja) 1994-06-01
DE3789877D1 (de) 1994-06-23
DE3782629D1 (de) 1992-12-17
DE3644501C2 (fr) 1989-11-23
EP0479266A1 (fr) 1992-04-08
SU1630606A3 (ru) 1991-02-23
US4790245A (en) 1988-12-13
EP0272526B1 (fr) 1992-11-11
DE3644501A1 (de) 1988-07-07
EP0479266B1 (fr) 1994-05-18
JPS63168357A (ja) 1988-07-12

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