EP0164051A2 - Dispositif pour fixer le blanchet inférieur - Google Patents

Dispositif pour fixer le blanchet inférieur Download PDF

Info

Publication number
EP0164051A2
EP0164051A2 EP85106516A EP85106516A EP0164051A2 EP 0164051 A2 EP0164051 A2 EP 0164051A2 EP 85106516 A EP85106516 A EP 85106516A EP 85106516 A EP85106516 A EP 85106516A EP 0164051 A2 EP0164051 A2 EP 0164051A2
Authority
EP
European Patent Office
Prior art keywords
paper tensioning
paper
clamping springs
hinges
rails
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
EP85106516A
Other languages
German (de)
English (en)
Other versions
EP0164051B1 (fr
EP0164051A3 (en
Inventor
Fred Kunkel
Herbert Rebel
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.)
Manroland AG
Original Assignee
MAN Roland Druckmaschinen AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by MAN Roland Druckmaschinen AG filed Critical MAN Roland Druckmaschinen AG
Priority to AT85106516T priority Critical patent/ATE36831T1/de
Publication of EP0164051A2 publication Critical patent/EP0164051A2/fr
Publication of EP0164051A3 publication Critical patent/EP0164051A3/de
Application granted granted Critical
Publication of EP0164051B1 publication Critical patent/EP0164051B1/fr
Expired legal-status Critical Current

Links

Images

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
    • B41F27/1262—Devices for attaching printing elements or formes to supports for attaching flexible printing formes without tensioning means

Definitions

  • the invention relates to a device for holding the lower elevator of a two-layer elevator on the outer surface of a blanket cylinder in printing presses, the upper lift essentially covering the device for the lower lift and extending over the length of the blanket cylinder, in particular in sheet-fed printing machines.
  • the holding device for the lower elevator as a holding rail extending over the length of the rubber cylinder, which is essentially formed with a circular cross-section, which extends over a front and supports two axially parallel contact points on the rubber cylinder.
  • register-holding bolts distributed, which can accommodate punch holes in the lower elevator.
  • the object of this device should be that it be constructed in a space-saving manner and that the lower elevator can be quickly attached to the holding device, said elevator always being positioned axially parallel with a predetermined distance from the outer edge of the rubber cylinder.
  • the problem for the printer is to position the punch holes for each individual lower elevator so that the punch holes fit into the register-holding bolts of the holding device when the lower elevator is inserted and then to carry out the difficult perforation process.
  • the further difficulty lies in inserting the lower elevator into the printing machine itself. It has been shown that the printer is often difficult have the ability to assemble or disassemble the holding device for the lower elevator. Further difficulties arise if the lower lifts are used several times and the punch holes have widened during the first or second print job on the register-holding pins of the holding device.
  • the invention has for its object to provide a device of the type mentioned, which avoids the disadvantages mentioned and is an inexpensive and securely fastened in the cylinder paper tensioning rail.
  • the device of the type mentioned is achieved by the features of the characterizing part of claim 1.
  • the device is formed from two paper tensioning rails which are rotatably connected to one another via hinges.
  • the printer only has a part of the assembly and the arches of the elevator in his hands.
  • a paper tensioning rail which is composed of several parts, these being loose, parts can be laid during the work, which can increase the assembly time.
  • hinges are provided over the entire length of the paper tensioning rail.
  • the hinges are approximately 250 - 280 mm apart and are arranged in pairs in the outer third on the paper tensioning rail. Seen from the side view, the pivot point of the hinges is in the middle of the two contact surfaces of the paper tensioning rails. This means that the more sheets of paper are inserted into the paper tensioning rail, the greater the holding force of the hinges when the paper tensioning rail is closed, since these are stretched apart by the thickness of the paper sheets.
  • the paper tensioning rails can be pressed together by means of at least two clamping springs which are rotatably attached to a paper tensioning rail.
  • the clamping springs are turned into a right-angled position relative to the paper tensioning rail by a simple rotary movement. Then the two paper tensioning rails can be folded out well around the pivot point of the hinges and the paper sheets of the lower elevator can be removed or reinserted.
  • Seen the distribution of the clamping springs in the longitudinal direction of the paper clamping rail is selected so that approximately three clamping springs are arranged e-about the two hinges around to g, ie alternately etc a clamping spring, a hinge .. If the paper sheets of the lower elevator between the paper clamping bars inserted and the clamping springs are closed, then the lower elevator is held non-slip in the paper tensioning rail.
  • the paper tensioning rails are easily detachably supported by means of at least two self-locking pedestals, which are attached to the rubber cylinder.
  • the bearing blocks lock the paper tensioning rail in the optimal position on the rubber cylinder after insertion by the printer.
  • the position is chosen so that the elevator is angled far beyond perpendicular to the paper tensioning rail in the direction of the outer surface of the blanket cylinder. This means that the clamping surface of the paper tensioning rail is not subjected to tension, but the possible tension is converted by the bending of the lower elevator into a tilting moment on the paper tensioning rail, which is taken up by the bearing block.
  • the bearing blocks also lock due to this tilting moment.
  • the printer can quickly and easily remove the paper clamping rail from the holder by simply opening the pedestals.
  • the paper tensioning rails have a profiled clamping surface over their entire length and width on their inner side.
  • the lower elevator no longer needs to be punched and can always be placed in the same position by resting on the pivot points of the hinges and optimally fixed with the clamping surface.
  • the hinges are attached to the paper tensioning rail at a defined distance from the clamping springs. The distance is about 10 cm.
  • This distance from the hinge to the clamping spring creates a leverage effect between them, which creates an additional holding force via the paper tensioning rail on the lower elevator.
  • the leverage arises from the geometric arrangement also seen in the longitudinal direction of the paper tensioning rail between the hinges and the clamping spring, since the pivot point of the hinges is arranged outside the paper tensioning rail and the pressure point of the clamping spring in the closed state approximately in the last third of the Width of the paper tensioning rail is provided.
  • the distance between the pressure point and the fulcrum corresponds to a lever arm.
  • the clamping springs are movably riveted to the paper tensioning rail and have reinforcement eyelets at one end.
  • the clamping springs are therefore a particularly cheap mass-produced product from sheet metal.
  • the reinforcement eyelets increase the spring pressure and the stability of the clamping springs.
  • the pedestals have a pawl and the pivot point of the lock is selected so that when the paper tensioning rail is pressed onto the pawl, it is automatically locked.
  • the latch By pressing the thumb, the latch can be tilted backwards slightly so that the printer can easily remove the paper tensioning rail without using a tool.
  • the bearing blocks are screwed to the rubber cylinder with a screw in a particularly simple manner, so that assembly is very cost-effective.
  • the pawl can be brought into its closed position by means of a compression spring, lifts of different strengths being usable. For the printer, automatic locking when mounting the paper tensioning rail is very helpful and time-saving.
  • the clamping springs are hardened and tempered and have reinforcement eyelets that have a radius of approx. 50 mm in the direction of the tensioning rail.
  • the reinforcement eyelets are thus bent so that the clamping springs only press the paper tensioning rails together with one pressure point.
  • the curved Reinforcement eyelets also have the advantage that the clamping springs can be pushed onto the paper tensioning rail without greater resistance due to the bevel during the printing movement, ie when the paper tensioning rail is to be closed.
  • the paper tensioning rail is also beveled on the side on which the clamping springs are slid on.
  • the clamping springs are attached to one side of the paper tensioning rail with a rivet, around which the clamping springs can be rotated.
  • the spot welded hinges are pretensioned when the paper tensioning rail is closed.
  • FIG. 1 shows a partial section of a lower elevator 1, which rests on the outer surface of a cylinder 3 of a printing machine, not shown in any more detail.
  • a two-layer elevator 2 is arranged on the rubber cylinder 3.
  • the upper elevator of the two-layer elevator 2 covers the mounting area of the lower elevator 1.
  • the lower elevator 1 is held in the middle at its end between a paper tensioning rail 5, 6.
  • the paper tensioning rail 5, 6 is fixed in a bearing block 8 such that the lower elevator 1 is arranged almost at right angles to the central clamping in the paper tensioning rail 5, 6.
  • a pawl 11 is movably attached to the bearing block 8 and automatically locks the paper tensioning rail 5, 6 in this position after insertion.
  • a compression spring 12 arranged inside the bearing block 8 is used for this purpose.
  • the pawl 11 is pressed into its locking position by the compression spring 12.
  • the bearing block 8 has an obliquely arranged contact surface 15 in its upper region, so that the paper tensioning rail 5, 6 receives the favorable position mentioned above in the rubber cylinder 3.
  • the bearing block 8 is screwed to the pressure cylinder 3 with a screw 13.
  • the paper tensioning rail 5, 6 is shown in partial section. Seen from the center of the paper tensioning rail 5, 6 in the last third of the paper tensioning rail 5, 6, clamping springs 7 and hinges 4 are arranged alternately.
  • the hinges 4 are fastened to a paper tensioning rail 5 so that they can be rotated through 150 ° and can optimally clamp the paper tensioning rails 5, 6 in the attached state.
  • the hinges 4 are dotted on the outer sides of the paper tensioning rails 5, 6.
  • the pivot point of the hinges 4 is on the side towards which the clamping springs 7 open.
  • the Paper tensioning rails 5, 6 can be opened and closed about the pivot point of the hinges 4 in order to insert or remove the paper sheets of the lower elevator 1.
  • the hinges 4 are preloaded when the paper tensioning rail 5, 6 is closed. An additional holding force is generated in the closed state by a lever effect within the paper tensioning rail 5, 6 between the pressure point of the clamping springs 7 on the paper tensioning rail 6 and the pivot point of the hinges 4 via their pretension.
  • FIG. 3 shows a detail of the paper tensioning rails 5, 6 in the area of the clamping spring 7.
  • the clamping spring 7 is fastened to the paper tensioning rail 5 with a rivet 14.
  • the clamping spring 7 is rotatable about the rivet 14 and clamps the paper tensioning rails 5, 6 together in the closed state.
  • the inside of the paper tensioning rails 5, 6 have a corrugated clamping surface 9.
  • the clamping surface 9 increases the stability of the lower elevator 1 in the paper tensioning rails 5, 6.
  • FIG 4 shows the paper tensioning rails 5, 6 in section.
  • the paper tensioning rails 5, 6 are parallel to one another and are chamfered on the end face over which the clamping spring 7 is pushed during the closing process.
  • a large holding force can thus be generated between the paper tensioning rails 5, 6, since the pretensioning of the clamping spring 7 can be chosen to be large without it being possible for the clamping spring 7 to no longer be pushed onto the paper tensioning rails 5, 6.
  • the clamping spring 7 has on the other side of its fastening (rivet 14) the reinforcement eyelet 10, which is additionally bent in itself. This simplifies the closing process of the clamping spring 7.
  • a further relief for the closing is bevels on the end faces of the paper tensioning rails 5, 6.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Supply, Installation And Extraction Of Printed Sheets Or Plates (AREA)
  • Liquid Developers In Electrophotography (AREA)
  • General Induction Heating (AREA)
  • Printing Plates And Materials Therefor (AREA)
EP85106516A 1984-06-07 1985-05-28 Dispositif pour fixer le blanchet inférieur Expired EP0164051B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT85106516T ATE36831T1 (de) 1984-06-07 1985-05-28 Vorrichtung zum halten des unteren aufzuges.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19843421148 DE3421148A1 (de) 1984-06-07 1984-06-07 Vorrichtung zum halten des unteren aufzuges
DE3421148 1984-06-07

Publications (3)

Publication Number Publication Date
EP0164051A2 true EP0164051A2 (fr) 1985-12-11
EP0164051A3 EP0164051A3 (en) 1986-06-25
EP0164051B1 EP0164051B1 (fr) 1988-08-31

Family

ID=6237790

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85106516A Expired EP0164051B1 (fr) 1984-06-07 1985-05-28 Dispositif pour fixer le blanchet inférieur

Country Status (3)

Country Link
EP (1) EP0164051B1 (fr)
AT (1) ATE36831T1 (fr)
DE (1) DE3421148A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3636359A1 (de) * 1986-10-25 1988-04-28 Koenig & Bauer Ag Druckwerk mit kurzfarbwerk in einer rotationsdruckmaschine
DE20010395U1 (de) * 2000-06-09 2001-10-11 Heidelberger Druckmasch Ag Zylinder mit einer Klemmeinrichtung in einer Druckmaschine

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE393868C (de) * 1924-04-08 Johne Werk Grafische Maschinen Zinkplattenaufspannvorrichtung fuer Rotationsdruckmaschinen
CH225170A (de) * 1941-05-24 1943-01-15 Roto Werke Ag Vorrichtung zur Befestigung von Schablonen an Vervielfältigern.
DE1914373A1 (de) * 1969-03-21 1970-10-01 Koenig & Bauer Schnellpressfab Formzylinder von Bogendruckmaschinen mit Unterschnitt
EP0070378A1 (fr) * 1981-07-16 1983-01-26 Heidelberger Druckmaschinen Aktiengesellschaft Dispositif de fixation de l'élément intérieur d'un habillage double sur la surface d'un cylindre d'impression dans les machines d'impression
DE3327972A1 (de) * 1983-08-03 1985-02-14 Fa. Georg Gernhard, 6000 Frankfurt Gummidrucktuch

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1213861B (de) * 1956-02-24 1966-04-07 Gerhard Ritzerfeld Rotationsvervielfaeltiger mit einem Druckzylinder zum Aufspannen von duennen biegsamen Druckformfolien
DE1781033U (de) * 1958-04-24 1959-01-15 Geno Organisation Bodenstein K Schreibunterlage fuer durchschreibebuchung.
US3296673A (en) * 1964-05-04 1967-01-10 Alven D Kirkpatrick Printing blanket edging and anchoring means
GB1234080A (fr) * 1967-06-12 1971-06-03
FR2491828A2 (fr) * 1970-03-12 1982-04-16 Jager Jeune Ste Nle Ets Habillage de blanchets pour rotatives offset d'imprimerie
DE2441367B2 (de) * 1974-08-29 1977-12-29 Japan Society for the Promotion of Machine Industry; Tokyo Kikai Seisakusho, Ltd.; Tokio Spannvorrichtung eines formzylinders einer druckmaschine

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE393868C (de) * 1924-04-08 Johne Werk Grafische Maschinen Zinkplattenaufspannvorrichtung fuer Rotationsdruckmaschinen
CH225170A (de) * 1941-05-24 1943-01-15 Roto Werke Ag Vorrichtung zur Befestigung von Schablonen an Vervielfältigern.
DE1914373A1 (de) * 1969-03-21 1970-10-01 Koenig & Bauer Schnellpressfab Formzylinder von Bogendruckmaschinen mit Unterschnitt
EP0070378A1 (fr) * 1981-07-16 1983-01-26 Heidelberger Druckmaschinen Aktiengesellschaft Dispositif de fixation de l'élément intérieur d'un habillage double sur la surface d'un cylindre d'impression dans les machines d'impression
DE3327972A1 (de) * 1983-08-03 1985-02-14 Fa. Georg Gernhard, 6000 Frankfurt Gummidrucktuch

Also Published As

Publication number Publication date
DE3421148A1 (de) 1985-12-12
DE3421148C2 (fr) 1992-07-23
EP0164051B1 (fr) 1988-08-31
ATE36831T1 (de) 1988-09-15
EP0164051A3 (en) 1986-06-25

Similar Documents

Publication Publication Date Title
DE19729444B4 (de) Stapelsäule zum Lagern von Lagergütern
DD261333A5 (de) Druckplattenbefestigungs- und spannvorrichtung
DE2744371C3 (de) Vorrichtung zum Befestigen und Spannen von biegsamen Druckplatten
WO2000073074A2 (fr) Dispositif pour fixer une plaque souple
AT414327B (de) Werkzeugaufnahmevorrichtung
DE3338450C1 (de) Einrichtung zum Einfuehren der Endabschnitte eines flexiblen Aufzuges in eine Grube eines Zylinders einer Druckmaschine
DE3342105A1 (de) Transportvorrichtung fuer randgelochte ein- oder mehrlagige materialbahnen, insbesondere fuer aufzeichnungstraeger in einem drucker
EP0164051B1 (fr) Dispositif pour fixer le blanchet inférieur
DE2547481C3 (de) Vorrichtung zum Befestigen und Spannen von biegsamen Druckplatten
WO2006024179A1 (fr) Dispositif de fixation de planche d'impression
EP0755785B1 (fr) Dispositif de fixation d'une plaque avec réduction de la zône sans pression
WO2003091024A1 (fr) Dispositifs de fixation d'au moins un habillage sur un cylindre d'une presse rotative et element d'impression equipe de ces dispositifs
DE4304992A1 (de) Vorrichtung zum Spannen von Brettern, insbesondere Fußbodenbrettern
DE2208784B2 (de) Druckvorrichtung
DE2626503A1 (de) Vorrichtung zum befestigen biegsamer druckplatten auf dem formzylinder von druckmaschinen
DE2946597C2 (de) Einspannvorrichtung für biegsame Druckplatten
DE2328954A1 (de) Auflager fuer einen druckplattenzylinder
WO1991004859A1 (fr) Dispositif pour positionner avec precision une planche d'impression sur un cylindre d'impression
DE3201014C1 (en) Device for the releasable fastening of an embroidery frame to the frame guide of embroidering machines
DE3637985C2 (de) Biegestanze
DE10024087C2 (de) Vorrichtung zum Befestigen einer Druckplatte auf einem Zylinder einer Rotationsdruckmaschine
DE3131375C2 (de) "Führungsaufsatz für die Schaftstäbe bei Webschäften"
DE3220530C2 (de) Vorrichtung zum Aufspannen von Tiefdruckplatten
WO1983004218A1 (fr) Dispositif de mise sous tension d'un blanchet en caoutchouc
DE3146393C2 (de) Briefordnermechanik

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): AT CH FR GB IT LI NL SE

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT CH FR GB IT LI NL SE

17P Request for examination filed

Effective date: 19860729

17Q First examination report despatched

Effective date: 19880212

ITF It: translation for a ep patent filed

Owner name: DE DOMINICIS & MAYER S.R.L.

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT CH FR GB IT LI NL SE

REF Corresponds to:

Ref document number: 36831

Country of ref document: AT

Date of ref document: 19880915

Kind code of ref document: T

ET Fr: translation filed
GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
ITTA It: last paid annual fee
EAL Se: european patent in force in sweden

Ref document number: 85106516.9

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 19950418

Year of fee payment: 11

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 19950419

Year of fee payment: 11

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 19950420

Year of fee payment: 11

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 19950424

Year of fee payment: 11

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: AT

Payment date: 19950426

Year of fee payment: 11

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 19950531

Year of fee payment: 11

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Effective date: 19960528

Ref country code: AT

Effective date: 19960528

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Effective date: 19960529

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Effective date: 19960531

Ref country code: CH

Effective date: 19960531

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Effective date: 19961201

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 19960528

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Effective date: 19970131

EUG Se: european patent has lapsed

Ref document number: 85106516.9

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee

Effective date: 19961201

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST