EP0172412A2 - Cylindre de transfert de feuilles dans les rotatives d'impression de feuilles - Google Patents

Cylindre de transfert de feuilles dans les rotatives d'impression de feuilles Download PDF

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Publication number
EP0172412A2
EP0172412A2 EP85108925A EP85108925A EP0172412A2 EP 0172412 A2 EP0172412 A2 EP 0172412A2 EP 85108925 A EP85108925 A EP 85108925A EP 85108925 A EP85108925 A EP 85108925A EP 0172412 A2 EP0172412 A2 EP 0172412A2
Authority
EP
European Patent Office
Prior art keywords
jacket
sheet transfer
transfer cylinder
segments
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
EP85108925A
Other languages
German (de)
English (en)
Other versions
EP0172412B1 (fr
EP0172412A3 (en
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/fr
Publication of EP0172412A3 publication Critical patent/EP0172412A3/de
Application granted granted Critical
Publication of EP0172412B1 publication Critical patent/EP0172412B1/fr
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 relevant prior art is determined, inter alia, by appropriately designed sheet transfer cylinders in the applicant's printing presses.
  • the sheet-bearing jacket elements are provided, which have, for example, end-side locking pins that go into corresponding bores of the cylinder end faces snap into place, 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
  • gaps can arise in the longitudinal direction between the individual jacket segments, taking into account various manufacturing tolerances, which have a negative effect on the printing process impact.
  • the type of mounting (oblique insertion) further requires a certain difference in diameter (play) between A and rretierzapfen bores so that, inter alia, a runout of the cylinder shell formed by the shell elements is the result. 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 positioning of the jacket segments in any position is possible. 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 in concentric receiving grooves of supporting disks which form the cylindrical end faces and can be locked therein, the spacing for inserting the guide cams in the receiving grooves on the supporting disks and radial insertion slots arranged 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 shell segment that carries the arch can e.g. be designed as a closed surface (cladding sheet), or as essentially only supporting the arch point by point (spur wheel). In a particularly advantageous manner, it is also possible in a simple manner to combine different systems of cylinder jacket segments with one another.
  • 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 flattening 7 in its upper region, which, as in particular FIG. 2 shows, essentially to make room 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 in the region of the gripper segment 22 have two radially outwardly directed insertion slots 27, 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, each of which has the same distance from one another.
  • the insertion slots 27 are also arranged or dimensioned.
  • the assembly of the individual jacket segments 22-24 now takes place as follows: First, the end segment 24 is introduced into the receiving grooves 8 via the insertion slots 27 and is shifted in the circumferential direction up to the intended position on the cylinder jacket surface limited 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 previously introduced end segment 24. Finally, the gripper segment 22 is inserted. In the area of the first guide cam 15, so-called turnbuckles 29, which are actuated with a tensioning lever 30, are now provided on both sides of the bent transmission cylinder 1 and on the supporting disks 4 (shown in FIG. 2).
  • a spring-loaded tension tab 31 of 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.
  • F ig. 2 shows the working position of the turnbuckle 29, while the broken line shows the disengaged position, adjustable via the tensioning lever 30, for the assembly and disassembly of 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 no further discussion is necessary.
  • 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.
  • there is no full-surface support of the paper sheet but only one point, for example by using the spur wheels 35 which are generally known in the prior art.
  • the structural design of the aforementioned casing segments 32-34 is illustrated in FIG. 5 using one of these segments.
  • 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 .
  • each S pore wheel 35 sits 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 a support rod 50.
  • the latter has arrays at each end animal cones 51, which engage in corresponding bores 52 of 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 the already mentioned clamping tab 31 at one end 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 one, somewhat thicker in diameter trained part 64 of the tension rod 59 is used 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, by means 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 be inserted or removed. bark out.
  • 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.
  • the Fig. 8 - 17 show schematically a number of possible assembly and choices in the design of the sheet-carrying cylinder jacket of the sheet transfer cylinder 1.
  • the hatched circle segment is in each case the gripper channel represents the arrangement as shown in FIGS.. 8 corresponds to the embodiment according to FIGS. 1-3.
  • the arch-bearing cylinder jacket in FIG. 9 only consists of the gripper segment 22 and the middle segment 23, which is limited in its end position by stops 73 on both sides due to the missing end segment 24, which stops on the cylinder body 2 or can be attached 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.
  • FIG. 13 shows the shell 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. Basically, here by means of locking screws 74, which the casing segments 33, 34 e.g. 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.
  • Figure 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.
  • the invention is of course not limited to the exemplary embodiments and combination variants shown, but rather encompasses all conceivable variations which are possible on the basis of the basic idea of the invention.
  • the constructive design of the casing segments with the assembly mechanism according to the invention enables the use of the variant which best meets the respective operating conditions.
EP85108925A 1984-08-16 1985-07-17 Cylindre de transfert de feuilles dans les rotatives d'impression de feuilles Expired EP0172412B1 (fr)

Applications Claiming Priority (2)

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

Publications (3)

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

Family

ID=6243187

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85108925A Expired EP0172412B1 (fr) 1984-08-16 1985-07-17 Cylindre de transfert de feuilles dans les rotatives d'impression de feuilles

Country Status (6)

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

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0243737A2 (fr) * 1986-04-29 1987-11-04 M.A.N.-ROLAND Druckmaschinen Aktiengesellschaft Cylindre de retournement pour machine rotative à imprimer des feuilles
DE3935736A1 (de) * 1989-10-27 1991-05-02 Chemie Linz Deutschland Pressling mit retardierter wirkstofffreisetzung
US5128144A (en) * 1989-10-16 1992-07-07 Pcd Polymere Gesellschaft M.B.H. Pressing having sustained release of active compound

Families Citing this family (7)

* 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
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
WO2007133715A2 (fr) * 2006-05-12 2007-11-22 Printguard, Inc. dispositif de serrage pour couvertures antimarquage pour presses d'impression
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

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1578652A (fr) * 1967-09-04 1969-08-14
DE2040712A1 (de) * 1969-09-29 1971-04-15 Polygraph Leipzig Bogenfuehrungszylinder in Mehrfarben-Bogenrotationsdruckmaschinen fuer Schoen- oder Schoen- und Widerdruck
FR2310876A1 (fr) * 1975-05-10 1976-12-10 Heidelberger Druckmasch Ag Tambour de transfert de feuille pour machines a imprimer
FR2375045A1 (fr) * 1976-12-21 1978-07-21 Solna Offset Ab Procede et dispositif pour le retournement d'une feuille dans une presse d'imprimerie
DE3126103A1 (de) * 1980-11-05 1982-06-09 VEB Kombinat Polygraph "Werner Lamberz" Leipzig, DDR 7050 Leipzig Bogenleiteinrichtung in bogenfuehrungszylindern

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
DE2632243C3 (de) * 1976-07-17 1979-08-30 Heidelberger Druckmaschinen Ag, 6900 Heidelberg Auf variable Bogenlängen einstellbare Umführtrommel für Druckmaschinen

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1578652A (fr) * 1967-09-04 1969-08-14
DE2040712A1 (de) * 1969-09-29 1971-04-15 Polygraph Leipzig Bogenfuehrungszylinder in Mehrfarben-Bogenrotationsdruckmaschinen fuer Schoen- oder Schoen- und Widerdruck
FR2310876A1 (fr) * 1975-05-10 1976-12-10 Heidelberger Druckmasch Ag Tambour de transfert de feuille pour machines a imprimer
FR2375045A1 (fr) * 1976-12-21 1978-07-21 Solna Offset Ab Procede et dispositif pour le retournement d'une feuille dans une presse d'imprimerie
DE3126103A1 (de) * 1980-11-05 1982-06-09 VEB Kombinat Polygraph "Werner Lamberz" Leipzig, DDR 7050 Leipzig Bogenleiteinrichtung in bogenfuehrungszylindern

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0243737A2 (fr) * 1986-04-29 1987-11-04 M.A.N.-ROLAND Druckmaschinen Aktiengesellschaft Cylindre de retournement pour machine rotative à imprimer des feuilles
EP0243737A3 (fr) * 1986-04-29 1989-05-03 M.A.N.-ROLAND Druckmaschinen Aktiengesellschaft Cylindre de retournement pour machine rotative à imprimer des feuilles
US5128144A (en) * 1989-10-16 1992-07-07 Pcd Polymere Gesellschaft M.B.H. Pressing having sustained release of active compound
DE3935736A1 (de) * 1989-10-27 1991-05-02 Chemie Linz Deutschland Pressling mit retardierter wirkstofffreisetzung

Also Published As

Publication number Publication date
EP0172412B1 (fr) 1989-03-15
US4608925A (en) 1986-09-02
DE3430131A1 (de) 1986-02-27
EP0172412A3 (en) 1987-09-23
CA1258271A (fr) 1989-08-08
DE3430131C2 (fr) 1988-05-26
AU577877B2 (en) 1988-10-06
JPH0523949B2 (fr) 1993-04-06
AU4480685A (en) 1986-02-20
JPS6172551A (ja) 1986-04-14
DE3568728D1 (en) 1989-04-20

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