EP0172412B1 - Bogenübertragungszylinder in Bogenrotationsdruckmaschinen - Google Patents

Bogenübertragungszylinder in Bogenrotationsdruckmaschinen Download PDF

Info

Publication number
EP0172412B1
EP0172412B1 EP85108925A EP85108925A EP0172412B1 EP 0172412 B1 EP0172412 B1 EP 0172412B1 EP 85108925 A EP85108925 A EP 85108925A EP 85108925 A EP85108925 A EP 85108925A EP 0172412 B1 EP0172412 B1 EP 0172412B1
Authority
EP
European Patent Office
Prior art keywords
jacket
sheet
transfer cylinder
sheet transfer
segments
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
EP85108925A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0172412A3 (en
EP0172412A2 (de
Inventor
Manfred Arlt
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.)
Heidelberger Druckmaschinen AG
Original Assignee
Heidelberger 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 Heidelberger Druckmaschinen AG filed Critical Heidelberger Druckmaschinen AG
Publication of EP0172412A2 publication Critical patent/EP0172412A2/de
Publication of EP0172412A3 publication Critical patent/EP0172412A3/de
Application granted granted Critical
Publication of EP0172412B1 publication Critical patent/EP0172412B1/de
Expired legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F21/00—Devices for conveying sheets through printing apparatus or machines
    • B41F21/10—Combinations of transfer drums and grippers

Definitions

  • the invention relates to a sheet transfer cylinder in sheet-fed rotary printing presses, with a cylinder jacket that supports the sheet, in accordance with the preamble of patent claim 1.
  • Such generic sheet transfer 'cylinders are available in different embodiments.
  • sheet transfer cylinders in particular are known which have a closed cylinder jacket, which may have a special sheet-supporting structure.
  • Another very well-known embodiment is to achieve a predominantly punctiform support instead of a more flat support of the paper sheet in that the cylinder jacket surface is made up of individual small spur wheels or elements having a similar effect.
  • the related art is u. a. determined by appropriately designed sheet transfer cylinders in the applicant's printing press.
  • the sheet-bearing jacket elements are provided, which, for. B have end-side locking pins which engage in corresponding bores in the cylinder end faces, a large number of bores being provided at certain intervals, so that each jacket element can be optionally positioned over the circumference of the sheet transfer cylinder.
  • jacket elements which are formed as jacket segments extending over part of the circumference of the cylinder jacket with a closed arch-supporting surface, taking into account various manufacturing tolerances, gaps can arise on the cylinder jacket in the longitudinal direction between the individual jacket segments, which have a negative effect on the printing process impact.
  • the type of assembly (oblique insertion) still requires a certain difference in diameter (play) between locking pin and holes, so that u. a. the result is a runout of the cylinder jacket formed from the jacket elements. This also has a negative impact on the print result.
  • the invention has for its object to provide a sheet transfer cylinder which avoids these disadvantages and is even more flexible and extremely simple and quick to the different operating conditions, such as different structure of the print image, change of the substrate in terms of format, quality and strength and / or alternating machine operation can be adjusted in straight printing or face and back printing, whereby, in addition, trouble-free sheet travel that does not impair the quality of the printed image and printing material should always be guaranteed.
  • the stated object is achieved by a device which is determined by the features of patent claim 1.
  • the sheet transfer cylinder constructed according to the invention is characterized by a high degree of flexibility with regard to the adaptation to the given operating conditions, the construction ensuring that the radial runout always remains within the required tolerances and that the jacket segments can be positioned in any position. No assembly work is required to change the individual jacket segments, but the machine operators can easily do this themselves in just a few steps in one machine position.
  • a particularly advantageous embodiment is characterized in that at each end face of a jacket segment there are preferably two friction cams which are guided and can be locked in concentric receiving grooves from the supporting disks forming the cylindrical end faces, the distance and in each case for inserting the guiding cams into the receiving grooves on the supporting disks radial insertion slots corresponding to the width of the guide cams are provided.
  • each jacket segment can be pressed against an upstream jacket segment or fixed stops or locked at any point.
  • the area of a jacket segment bearing the arch can, for. B. as a closed surface (cladding sheet), or as the arch essentially only point by point (spur wheel).
  • the sheet transfer cylinder 1 shown in FIG. 1 initially has a cylinder body 2, the axle journals 3 of which are mounted in the side walls (not shown) of the printing press.
  • support disks 4 are mounted on the cylinder body and their position is determined by means of fastening screws 5 and locking rings 6, or are fastened to the cylinder body 2.
  • the cylinder body 2 has a flattened portion 7 in its upper region, which, as shown in particular in FIG. 2, is essentially intended to create space for the gripper device.
  • the radially outer region of each support disk 4 has concentric receiving grooves 8 which are directed inward in the longitudinal direction of the cylinder and which extend almost over the entire circumference and serve to receive jacket segments 22-24 which form the cylinder jacket.
  • jacket segments 22-24 consist of a radially outer jacket 10 and an inner jacket 11, which are connected to one another by connecting webs 12. Attached to the jacket 10 again via screw connections 13 are ring segments 14 arranged on both sides, which (axially) have two outwardly directed guide cams 15 which engage in the receiving grooves 8 of the support disks 4.
  • the jacket 10 correspondingly dimensioned in the cylinder longitudinal direction has at its ends circumferential annular grooves 16, which serves the purpose of preventing contamination of the inner regions of the sheet transfer cylinder 1, in particular during the printing process.
  • Fig. 2 illustrates the distribution of the individual shell segments 22-24 in the cylinder circumferential direction.
  • a bracket 18 is attached via fastening screws 17.
  • This carries the gripper support 19 for the grippers 20, which are arranged on the gripper bridge 21, the actuation and movement mechanism of which will not be explained in detail here.
  • the cylinder jacket is formed from a total of three jacket segments 22-24, specifically from the gripper segment 22, the middle segment 23 and the end segment 24, which each extend over the entire length of the sheet transfer cylinder 1.
  • the end segment 24 is provided with an additional tensioning device 25 in order to tension a covering 26 which extends over the entire arch-bearing region of the three jacket segments 22-24.
  • the receiving grooves 8 of the support disks 4 have two radially outwardly directed insertion slots 27 in the region of the gripper segment 22, via which the guide cams 15 can be inserted into the receiving grooves 8.
  • Each of the jacket segments 22-24 has two guide cams 15, which are each at the same distance from one another.
  • the insertion slots 27 are also arranged or dimensioned.
  • the end segment 24 is introduced into the receiving grooves 8 via the insertion slots 27 and is displaced in the circumferential direction thereof into the intended position on the cylinder jacket surface, delimited by stops 28 of the support disks 4.
  • the middle segment 23 is then inserted and brought in a corresponding manner until it abuts the end segment 24 previously introduced.
  • the gripper segment 22 is inserted.
  • so-called turnbuckles 29, which are actuated with a tensioning lever 30, are now provided on both sides of the bowing transmission cylinder 1 and on the support disks 4 (shown in FIG.).
  • each turnbuckle 29 presses against said guide cams 15, all jacket segments 22-24 being pressed against the stops 28 in accordance with the transmission of the spring forces and thus being clearly positioned.
  • the working position of the turnbuckle 29 is shown, while the broken line shows the disengaged position, adjustable via the tensioning lever 30, for assembling and disassembling the individual casing segments 22-24.
  • An enlarged view of the turnbuckle 29 can be seen in FIGS. 6 and 7.
  • the disassembly of the casing segments 22-24 is carried out in the reverse order.
  • straps 78, 79 are assigned to each inner jacket 11 of middle segment 23 and end segment 24 on both sides and fastened to them with one end by means of rivets 77, while the other end of each strap 78, 79 is suspended in a pin 80 which is in the region of the Gripper segment 22 and the gripper device 18-21 is attached to the flat 7 of the cylinder body 2.
  • the remaining jacket segments 23, 24 can be conveniently pulled into the appropriate position (radial insertion slots) by the machine operator for disassembly without rotating the entire sheet transfer cylinder 1 (jog mode).
  • Fig. 4 shows a further embodiment variant for the design of the cylinder jacket carrying the bow.
  • the turnbuckle 29 and the entire gripper device correspond to the devices shown in Fig. 2, so that a further consideration is not required.
  • the cylinder jacket carrying the bow is formed from three jacket segments 32-34, which in turn can be referred to as gripper segment 32, middle segment 33 and end segment 34.
  • gripper segment 32 middle segment 33
  • end segment 34 end segment 34
  • This jacket segment 32 which extends over the entire length of the sheet transfer cylinder 1, consists of two segment segments 36, 37 which are connected to one another and formed as a frame, two respectively curved disks 38, 39 being provided and being connected via connecting webs 40, 41, for example by means of welded connections 42 .
  • a further disk element 48, 75, which carries the guide cams 15, is fastened to each disk 38 axially on the outside and thus assigned to the support disks 4 shown in FIG. 1, in each case by means of screw connection 46 and positioning pin 47.
  • the casing segments 22-24 according to the embodiment according to FIGS. 1 to 3 can alternatively be exchanged for one or more of the casing segments 32-34 according to the embodiment according to FIGS. 4 and 5.
  • each spur wheel 35 is seated on a bearing bush 49, which is arranged axially displaceably on a support rod 50.
  • a support rod 50 which is arranged axially displaceably on several spur wheels with corresponding bearing bushes 49 will be arranged on a support rod 50.
  • the latter has locking pins 51 at each end, which engage in corresponding bores 52 in the disks 38, 39.
  • the position of each support rod 50 is determined via a compression spring 53, which is supported on the disk 39 and a shoulder 54 of the support rod 50.
  • FIG. 6 and 7 show in a view and an associated top view an enlarged view of the turnbuckle 29 described above.
  • This consists of a turnbuckle body 55 which is rotatably fastened to a supporting disk 4 by means of a screw 56 with a safety nut 57, the longitudinal axis 76 of the screw forming the axis of rotation.
  • a tension rod 59 projects through a bore 58 of the turnbuckle body 55. This has at one end the already mentioned clamping tab 31; and is connected to it by means of pin 60.
  • a compression spring 63 which is supported on a shoulder 62 of the bore 58, provides the required compression force (see line of action of the reaction force F).
  • the middle part 64 of the tensioning rod 59 which is somewhat thicker in diameter, serves to guide it in the bore 58. Its other end is equipped with a thread 65, onto which a knurled nut 66 is screwed.
  • the fork-shaped tensioning lever 30 engages, with the help of which the turnbuckle 29 can be rotated about its axis of rotation (longitudinal axis 76 of the screw) according to the arrows I, II, because by pivoting the tensioning lever 30 the latter is supported each on the end face 67 of the turnbuckle body 55 and on the knurled nut 66. This creates a correspondingly directed torque about the longitudinal axis 76 of the screw.
  • the spring-loaded tension rod 59 is pulled to the right - the turnbuckle 29 can engage or disengage.
  • a tab 69 is fastened by means of screw 70 and positioning pin 71 and has an end piece 72, which is bent by 90 ° and interacts with the knurled nut 66 in the manner described below.
  • Figures 8-17 show schematically a number of possible arrangement and selection options in the design of the arch load-bearing cylinder jacket of the sheet transfer cylinder 1.
  • the hatched circle segment each represents the gripper channel.
  • the arrangement according to FIG. 8 corresponds to the embodiment according to FIGS. 1-3. 9 only consists of the gripper segment 22 and the middle segment 23, which due to the missing end segment 24 is limited in its end position by stops 73 on both sides, which can be attached to the cylinder body 2 or to the support disks 4.
  • the embodiment variant according to FIG. 10 consists only of gripper and end segments 22, 24, so that the stop 73 is again to be attached.
  • FIG. 11 where only the gripper segment 22 forms the cylinder jacket. Depending on the paper size to be processed, this may be sufficient.
  • FIG. 12 corresponds to the embodiment according to FIG. 4.
  • 13 shows the jacket segments 32, 33, which are equipped with spur wheels 35.
  • a corresponding stop 73 is therefore also required here.
  • 14, only two jacket segments 33, 34 are used. In this case consisting of the middle segment 33 and the end segment 34 at the points assigned to them.
  • locking screws 74 which the jacket segments 33, 34 z. B. clamp against the cylinder body 2, positioning in any position possible.
  • 16 shows a combination between jacket segments 22, 24 with a closed jacket surface and a jacket segment (middle segment 33) which is equipped with spur wheels 35.
  • Fig. 17 also shows such a combination.
  • the gripper segment 22 is formed with a closed lateral surface, while the rest, namely the middle segment 33 and the end segment 34, have spur wheels 35.

Landscapes

  • Feeding Of Articles By Means Other Than Belts Or Rollers (AREA)
  • Supply, Installation And Extraction Of Printed Sheets Or Plates (AREA)
  • Discharge By Other Means (AREA)
EP85108925A 1984-08-16 1985-07-17 Bogenübertragungszylinder in Bogenrotationsdruckmaschinen Expired EP0172412B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3430131 1984-08-16
DE19843430131 DE3430131A1 (de) 1984-08-16 1984-08-16 Bogenuebertragungszylinder in bogenrotationsdruckmaschinen

Publications (3)

Publication Number Publication Date
EP0172412A2 EP0172412A2 (de) 1986-02-26
EP0172412A3 EP0172412A3 (en) 1987-09-23
EP0172412B1 true EP0172412B1 (de) 1989-03-15

Family

ID=6243187

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85108925A Expired EP0172412B1 (de) 1984-08-16 1985-07-17 Bogenübertragungszylinder in Bogenrotationsdruckmaschinen

Country Status (6)

Country Link
US (1) US4608925A (ko)
EP (1) EP0172412B1 (ko)
JP (1) JPS6172551A (ko)
AU (1) AU577877B2 (ko)
CA (1) CA1258271A (ko)
DE (2) DE3430131A1 (ko)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3535621A1 (de) * 1985-10-05 1987-04-09 Heidelberger Druckmasch Ag Bogenuebergabetrommel
DE3614565A1 (de) * 1986-04-29 1987-11-05 Roland Man Druckmasch Wendetrommel in bogenrotationsdruckmaschinen
DE59003337D1 (de) * 1989-10-16 1993-12-09 Danubia Petrochem Polymere Pressling mit retardierter Wirkstofffreisetzung.
DE3935736A1 (de) * 1989-10-27 1991-05-02 Chemie Linz Deutschland Pressling mit retardierter wirkstofffreisetzung
US6811863B2 (en) 2001-07-20 2004-11-02 Brite Ideas, Inc. Anti-marking coverings for printing presses
DE10355045B4 (de) * 2002-12-20 2018-09-06 Heidelberger Druckmaschinen Ag Verfahren zur Variation eines Trommelprofils einer Vario-Trommel und Vario-Trommel zur Durchführung des Verfahrens
EP2019754B1 (en) * 2006-05-12 2012-09-12 Printguard, Inc. Fixture for anti-marking coverings for printing presses
JP2008044373A (ja) * 2006-08-16 2008-02-28 Heidelberger Druckmas Ag シートを処理する機械において反転グリッパを開放して旋回させるための装置
JP6539152B2 (ja) * 2015-08-25 2019-07-03 株式会社小森コーポレーション 印刷装置の搬送胴
DE102020107838B4 (de) 2020-03-23 2023-05-11 Koenig & Bauer Ag Bogenverarbeitende Maschine mit einem Bogentrenner

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1222256A (en) * 1967-09-04 1971-02-10 Albert Schnellpressen Improvements in or relating to sheet transfer mechanisms for sheet-fed rotary printing presses
FR2060466A5 (fr) * 1969-09-29 1971-06-18 Planeta Veb Druckmasch Werke Cylindre guide-feuilles pour rotative imprimant en plusieurs couleurs, pour impression recto ou recto-verso
DE2025849B2 (de) * 1970-05-27 1973-10-31 Maschinenfabrik Augsburg-Nuernberg Ag, 8900 Augsburg Uberfuhrtrommel von Bogenrota tionsdruckmaschinen mit Vorrichtungen zum Verhindern des Abschmierens
US4122773A (en) * 1974-04-24 1978-10-31 Heidelberger Druckmaschinen Ag Change-over means for a storage drum for sheet transferral
AR206823A1 (es) * 1974-11-02 1976-08-23 Heidelberger Druckmasch Ag Tambor de traslacion en maquinas impresoras rotativas de pliegos
AT341550B (de) * 1975-05-10 1978-02-10 Heidelberger Druckmasch Ag Bogenuberfuhrtrommel fur druckmaschinen
DE2632243C3 (de) * 1976-07-17 1979-08-30 Heidelberger Druckmaschinen Ag, 6900 Heidelberg Auf variable Bogenlängen einstellbare Umführtrommel für Druckmaschinen
SE7614362L (sv) * 1976-12-21 1978-06-22 Solna Offset Ab Arkvendare
DD157047A3 (de) * 1980-11-05 1982-10-13 Karlheinz Fischer Bogenleiteinrichtung in bogenfuehrungszylindern

Also Published As

Publication number Publication date
JPS6172551A (ja) 1986-04-14
US4608925A (en) 1986-09-02
AU577877B2 (en) 1988-10-06
CA1258271A (en) 1989-08-08
DE3430131C2 (ko) 1988-05-26
DE3430131A1 (de) 1986-02-27
AU4480685A (en) 1986-02-20
DE3568728D1 (en) 1989-04-20
EP0172412A3 (en) 1987-09-23
JPH0523949B2 (ko) 1993-04-06
EP0172412A2 (de) 1986-02-26

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