EP1205297A1 - Unité d'impression polychrome pour une machine d'impression rotative à feuilles - Google Patents

Unité d'impression polychrome pour une machine d'impression rotative à feuilles Download PDF

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Publication number
EP1205297A1
EP1205297A1 EP01126248A EP01126248A EP1205297A1 EP 1205297 A1 EP1205297 A1 EP 1205297A1 EP 01126248 A EP01126248 A EP 01126248A EP 01126248 A EP01126248 A EP 01126248A EP 1205297 A1 EP1205297 A1 EP 1205297A1
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EP
European Patent Office
Prior art keywords
printing unit
cylinder
printing
additional
fed rotary
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.)
Withdrawn
Application number
EP01126248A
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German (de)
English (en)
Inventor
Torald Rohloff
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP1205297A1 publication Critical patent/EP1205297A1/fr
Withdrawn legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F7/00—Rotary lithographic machines
    • B41F7/02—Rotary lithographic machines for offset printing
    • B41F7/10—Rotary lithographic machines for offset printing using one impression cylinder co-operating with several transfer cylinders for printing on sheets or webs, e.g. satellite-printing units
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F13/00—Common details of rotary presses or machines
    • B41F13/46—Printing units for inserting latest news

Definitions

  • the invention relates to a multicolor printing unit for a sheet-fed rotary printing press, according to the preamble of claim 1.
  • Such printing devices are e.g. made known by US-PS 40 98 185.
  • Around a rubber cylinder are several forme cylinders with their inking units semi-circular arranged.
  • the rubber cylinder has a multiple diameter of the forme cylinder.
  • On Counter pressure cylinder with a controllable gripper row works with the rubber cylinder together.
  • the impression cylinder has simple, i.e. the same diameter as that Form cylinder.
  • the US-PS 30 41 966 shows a multi-color printing unit for a web-fed rotary printing press with a central impression cylinder and five printing units.
  • the printing units with ink feed, inking roller, form cylinder and blanket cylinder are not accessible from an operating room, which is easily accessible from a Machine side, i.e. is accessible from the operator or drive side.
  • the inking units are first moved away together into an operating room for Form cylinders, blanket cylinders and inking rollers to arrive.
  • An operating room for the four inking units of a multi-color printing unit according to DE 195 03 619 A1 is not from a machine side, i.e. from the operator or drive side accessible. Rather, it is only from the investor side, the cantilever side or from above accessible.
  • the invention has for its object a five- to six-color sheet-fed rotary printing press unit for printing on arched print carriers, e.g. made of paper, Plastic and / or sheet metal to create a common impression cylinder having.
  • the additional printing unit (s) can be easily integrated into the sheet rotation Printing machine can be integrated and easily e.g. on one each sliding carriage.
  • Printing machine can be integrated and easily e.g. on one each sliding carriage.
  • the additional printing unit (s) have blanket cylinders (transfer cylinders), they each with their reference to the cover of the jacket of the rubber cylinder of it assigned simple printing unit.
  • the printing unit 1, 28 according to FIG. 1 essentially consists of: one Underframe 2, a plurality of e.g. four single printing units 6.1, 6.2, 6.3, 6.4 and 5.3, 5.1, 5.2, 5.4 and a multi-field impression cylinder 8 with a plurality, e.g. five, controlled gripper rows 9, 11, 12, 13, 14 with the associated gripper pads.
  • the outer surface of the impression cylinder 8 can be metallic bright, but also one have rubber-elastic coating.
  • the one Front end facing sheet feeder opposite is a sheet delivery facing, rear end face; an upper side that gives access to the printing unit 1.28 from allowed above.
  • a front machine side 4 which is generally called “Operation side” is called.
  • Opposite is a rear machine side 6, the is generally referred to as the "drive side", because usually the Main drive motor 10.28 for the printing unit 1 and the other auxiliary drive motors e.g. Drives 35, 36 are arranged or fastened.
  • the printing unit 1, 28 are arched by a sheet feeder (not shown) Printing medium, e.g. made of paper, plastic or metal, and after a one or multicolored printing in the printing unit 1, 28 removed from it and one Sheet delivery (not shown) fed.
  • the single printing units 6.1, 6.2, 6.3, 6.4, 5.1, 5.2, 5.3, 5.4 are advantageously free without hindrance from the front and / or rear side frames 4, 7 at least from the "operating side” 4 and / or from the rear machine side 6, the "drive side", e.g. via an operating room 5 accessible.
  • the operating room 5 is between the two inner single printing units 6.2, 6.3 of the two double printing units 3.1, 3.2 (Fig.1) or in space 5 between the two outer single printing units 5.3 and 5.4 (Fig. 2, Fig. 3).
  • at least the side frame 4 of the "operating side” recessed so that free access to and in the operating room 5 is guaranteed.
  • the operating room 5 is due to the V-shaped arrangement of the double printing units 3.1.3.2 (Fig.1) around an impression cylinder 8 or through between the single printing units 5.3, 5.4 (Fig. 2 to 5) formable space 5, which arises as soon as the double printing unit 3.3 has started up.
  • the printing unit 3.1, 3.2 have a front one Side frame 17 and a rear side frame 16.
  • the single printing units 5.3, 5.4 have a front 20.1 and a rear side frame 20.2.
  • Double printing units 3.1, 3.2, 3.3 and single printing units 5.3 and 5.4 are preferably included So-called short inking units equipped, as shown by way of example in FIG. 1.
  • an ink supply device 27 is provided and also rotatably supported: one Ink metering roller 21, an inking roller 22 with a rubber-elastic jacket 23, a Forme cylinder 24 and a rubber cylinder 26. They all have the same effective scope or diameter. They are preferably as so-called single-circumference cylinders or rollers executed. Forme cylinder 24 and blanket cylinder 26 could also be a so-called. Double circumference cylinder to be executed.
  • the color flow takes place from the Ink feed device 27 via the ink metering roller 21, the inking roller 22 on a Printing form of the forme cylinder 24.
  • the printing form puts its printing pattern on a rubber blanket of the blanket cylinder 26.
  • the rubber cylinders 26 each form with the outer surface, i.e. the, -z. B. five, fields 9.1,11.1,12.1,13.1,14.1 of the impression cylinder 8 each Printing point for the printing sheet-like printing medium, e.g. made of paper, plastic or metal.
  • the ink supply devices 27 can be of various types. For example, on conventional ink fountain with ink knife / s. However, it can also be the chamber oracle various designs can be provided. So e.g. with negative squeegee and positively employed closing squeegee. Or also with negatively employed work and Closing doctor.
  • the nature of the jacket of the ink metering rollers 21 is in each case to the Material properties of the ink knife or that of the doctor blade adapted.
  • the coat is ink-friendly and can consist of metal, plastic or ceramic or the like.
  • the surface of the jacket can be smooth or textured, e.g. Cup or so-called
  • the forme cylinders 24 have known fastening devices for flat-form printing plates (Wet offset, dry offset) or flat form sleeves and are covered with them.
  • the Forme cylinders 24 could also be removably removable. You are for printing and pressure shutdown in known, rotatable eccentric bushings in the Side frames 17,18,19,20.1,20.2 stored.
  • the rubber cylinders 26 are with known fastening devices for Blankets or blanket sleeves, so-called sleeves.
  • a multi-field gripper drum 8 impression cylinder is driven in the base frame 2 stored. It is designed as a so-called multiple circumferential drum. That their effective scope or diameter is a multiple of the effective circumference or diameter of one Single circumference form or rubber cylinder.
  • the counter pressure areas can bright metallic, but also have a rubber-elastic covering (cover)
  • the number of their fields 9.1, 11.1, 12.1, 13.1, 14.1 corresponds to the number of controlled ones Gripper rows 9, 11, 12, 13, 14. They each directly join them and form them the counter pressure surfaces for the blanket cylinders 26.
  • the printing units 1, 28 for multi-color, preferably four to six-color printing consist of a plurality, e.g. four printing units 3.1 to 3.4 and one them assigned single impression cylinder 8.
  • the effective diameter of the Impression cylinder 8 of such a multi-color printing unit 1, 28 is at least equal to or greater than the product of the multiplicand: "more effective Diameter of the forme cylinder 24 or blanket cylinder 26 (also blanket cylinder or called transfer cylinder) "and the multiplier" number of printing units (6.1 to 6.4 or 5.1 to 5.4) of the printing unit 1 ( Figure 1) or the printing unit 28 ( Figure 2) minus One ".
  • the number of fields 9.1 to 14.1 is on the circumference of the Back pressure cylinder 8 selected. So there are 28 in a four-color printing unit at least three of the fields 9.1 to 14.1 are provided. Or also four, five, six, etc. fields could be the outer surface of the impression cylinder 8.
  • Conventional controllable grippers can be used in the gripper rows 9 to 14 (not shown).
  • the use of known ones would be particularly advantageous Grippers that are designed in such a way that after they are closed they are completely within the circular periphery of the impression cylinder 8 come to rest.
  • the single printing units 6.1, 6.2, 6.3, 6.4, 5.1, 5.2, 5.3, 5.4 with one each Ink feed device 27, ink metering roller 21, inking roller 22, forme cylinder 24 and Rubber cylinders 26 can, as already described above and in FIGS. 1 to 3 shown as double printing units 3.1 to 3.3 or as single printing units 5.3 to 5.4 ( Figures 2 and 3) and be attached to the base frame 2.
  • Double printing units 3.1 to 3.3 are two printing units, e.g. 5.1 with 5.2, or 6.1 with 6.2 summarized so that they form a functional unit. That in the assembled state they form a unit.
  • a plurality of double printing units 3.1, 3.2, preferably two, but also three, a single impression cylinder 8 can be assigned.
  • double printing units 3.3 and single printing units 5.3 and 5.4 can be assigned to an impression cylinder 8. So e.g. a double printing unit 3.3 and several, e.g. two, single printing units 5.3, 5.4.
  • Double printing unit 3.3 and the single printing units 5.3 and 5.4 are preferably close to each other (i.e. their side frames are not spaced apart) arranged.
  • left and right side surfaces of the side frames 19 of the double printing unit 3.3 and the inner side surfaces of the side frames 20.1 and 20.2 the single printing units 5.3 and 5.4 by means of a guide, e.g. one Dovetail guide, be positively connected.
  • the single printing units 5.3 and 5.4 are stationary, i.e. rigid with that Base 2 are connected. Then you have to change printing forms or Rubber blankets, the double printing unit 3.3 can be moved up and down and raised as far and locked in such a position that access to the two forme cylinders 24 and / or the two rubber cylinders 26 is convenient and safe.
  • the double printing unit 3.3 it is also possible for the double printing unit 3.3 to be stationary, i.e. permanently firm with the base 2 is connected. Then you have to change printing plates and / or Blankets of the double printing unit 3.3, the single printing units 5.3, 5.4 on and be drivable and lockable.
  • the double printing unit 3.3 and the single printing units 5.3 and 5.4 are each in the guides of the printing unit to be moved 3.3 or 5.3 and 5.4 Rack attached.
  • the gear teeth of the racks are with a pinion one self-locking gear engaged.
  • the gearbox is e.g. from an electric motor driven.
  • the gear unit is supported on the immovable printing unit / s. Should the double printing unit 3.3 can be moved up and down, so support the Gearboxes on the side frames 20.1 and 20.2 of the single printing units 5.3 and 5.4 respectively. If, on the other hand, the single printing units 5.3, 5.4 can be moved up and down, so the gear is supported on the side frames 19 of the double printing unit 3.3.
  • a Shutdown protection e.g. so-called latch locks may be provided.
  • the double printing unit 3.3 can also be divided horizontally his.
  • the two rubber cylinders 26 are mounted in a stationary frame. she are therefore not open and closed.
  • Double printing unit 3.3 and single printing units 5.3, 5.4 can, however, also be used by few Be spaced centimeters apart.
  • the drive of the double printing units and single printing units can be synchronized with that Impression cylinder 8 via a common gear train from a common Main drive of the printing press or also by speed and angle controlled Single drives (frequency controlled three-phase motors) per single or double printing unit or per roller 21, 22 and / or cylinder 24, 26.
  • Speed and angle controlled Single drives frequency controlled three-phase motors
  • With a single drive per single or Double printing unit is used to drive the rollers 21, 22 and / or cylinders 24, 26 a common gear train from a directly driven cylinder 24 or 26 or via a directly driven roller 21 or 22.
  • a directly driven cylinder 24 or 26 or via a directly driven roller 21 or 22.
  • only one is also possible to directly drive the rollers 21, 22 and cylinders 24, 26 and the others in the To drive friction between each other.
  • the color flow takes place from the ink supply device 27 provided with printing ink the ink metering roller 21, the inking roller 22 onto a printing form of the forme cylinder 24.
  • the printing form releases its printing pattern onto a blanket of the blanket cylinder 26.
  • the Rubber cylinders 26 each form with the outer surface, i.e. the, -z. B. five -, fields 9.1,11.1,12.1,13.1,14.1 of the impression cylinder 8 each have a pressure point for the printing sheet-like printing medium, e.g. made of paper, plastic or metal.
  • Such short inking units 32 have an ink supply device 27, an ink metering roller 21 and an inking roller 22, forme cylinder 24 and blanket cylinder 26 can, such as already described above and shown in Figures 1 to 3, as double printing units 3.1 to 3.3 or as single printing units 5.3 to 5.4 ( Figures 2 and 3) and on Base frame 2 are attached.
  • Two printing devices 1 and / or 28 according to the invention connected in series can with the interposition of known / n sheet transfer drum / s with only controllable gripper rows or known / n sheet transfer drum / s with Bow turning device to be expanded. This can increase the color number and / or a multicolored face and back printing are possible.
  • At least the first single printing unit 6.1 is the first Double printing unit 3.1 a first additional printing unit 29 and / or the last (second) Single printing unit 6.4 of the last (second) double printing unit 3.2 a second Additional printing unit 31 assigned.
  • the additional printing units 29, 31 can each have inking units 32 of any design. Is particularly advantageous because of the short design and the associated short response time the use of inking units in the so-called “short inking units", such as they are also shown in the single printing units 6.1, 6.2, 6.3, 6.4, 5.1, 5.2, 5.3, 5.4.
  • the additional printing units 29, 31 each have a front (operator-side) side frame 33 and a rear (drive side) side frame 34. You can use the front (operator-side) side frame 17 or rear (drive-side) Side frames 16 of the first double printing unit 3.1 or the two side frames 16, 17 of the last (second) double printing unit 3.2 of the printing unit 1 coincide.
  • each of the additional printing units 29, 31 is to generate a printing ink color stream from an ink supply device 27 in a first embodiment at least in each case driven rotatably mounted: an ink metering roller 21, an inking roller 22 with a rubber-elastic jacket 23 and a forme cylinder 24.
  • All rollers and cylinders of the additional printing units 29, 31 of both types have preferably all the same effective circumference or diameter. They are preferably carried out as a so-called single-circumference cylinder or roller. Forme cylinder 24 and rubber cylinder 26 could also be designed as a so-called double circumference cylinder. The diameters or circumferences of the rollers and / or cylinders of the additional printing units 29, 31 can of course also be different.
  • the color flow takes place from that provided with printing ink Ink feed device 27 from via the ink metering roller 21, the ink application roller 22 a printing form of the forme cylinder 24 of the additional printing unit 29; 31.
  • the printing form in turn gives your ink application to the ink-transferring cover, e.g. on Blanket, the blanket cylinder 26 of the assigned single printing unit, e.g. 6.1, 6.4 -, the double printing units 3.1, 3.2 from.
  • the additional printing units 29, 31 can also be arranged in printing units 1, 28 where a double printing unit 3.3 next to one - or between two Individual printing units 5.3, 5.4 is arranged ( Figures 2, 3).
  • the additional printing units 29, 31 are driven synchronously with the impression cylinder 8 Printing unit 1, 28 in which they are arranged.
  • rollers 21, 22 are driven and / or cylinder 24, 26 via a common gear train from one directly driven cylinder 24 (or if a blanket cylinder 26 is in the additional printing unit 29, 31, from this) or from a directly driven roller 21 or 22. It is natural it is also possible for only one of the rollers 21, 22 and cylinders 24, 26 from an individual drive 36 to drive directly and from him / her the other rollers and cylinders by means of friction to drive directly adjacent to each other.
  • the forme cylinder 24 of the selected additional printing unit 29 or 31, or both, of the one assigned to it Rubber cylinder 26 of a single printing unit z. B: 6.1, 6.4 in such a big one Axis distance brought and finally brought to a standstill, so that a safe Exchange of printing plates or printing form sleeves on and from the forme cylinder 24 an additional printing unit 29 can be carried out manually or mechanically.
  • the additional printing units 29, 31 also have a rubber cylinder 26, then z. B. at least during the process of printing plate change of the forme cylinder 24 of the additional printing unit 29 or 31 currently performing a printing form change or both to the associated rubber cylinder 26 of the additional printing unit z. B: 29 or 31 brought into such a large axis distance and finally brought to a standstill be so that a safe change of printing plates or printing form sleeves on and by the forme cylinder 24 of the selected additional printing unit 29 by hand or can be done mechanically.
  • the respective forme cylinder of the Additional printing unit After the printing form change is completed by manual contact or in As part of an automatic program sequence, the respective forme cylinder of the Additional printing unit from standstill back to the peripheral speed and current angle of rotation of the blanket cylinder 26 associated with it Single printing unit of the printing unit accelerated and finally with complete Synchronous running is made at these angles of rotation.
  • the rest of the rollers and cylinders of the additional printing unit 29 or 31 which is currently carrying out a printing form change their circumferential speed and the exact angle of rotation of their forme cylinder 24.
  • sledge-like Additional printing units 29 are used, so are in the carriage 38, 40 at least Forme cylinder 24 and the cylinders necessary for coloring the forme cylinder 24 and Rollers (22, 21) and the ink supply device 27 installed, so that if desired - their shared drive is always maintained.
  • the side frames 37, 41 of the carriages 38, 40 of the additional printing units 29, 31 are e.g. in a side frame fixed guide 42, 43, e.g. one dovetail guide each, on the inner one Side of the front (left) side frame 17 or the inner side of the rear (right) Side frame 16 of the printing unit 1 out.
  • Each of the additional printing units 29, 31 is provided with at least one infeed drive, whose abutment e.g. is supported on the side frame of the printing unit 1 and its Force attack is coupled to the slide 38, 40.
  • the feed drives would be e.g. electrical controllable, double-acting hydraulic or pneumatic cylinders, but also gears such as B. Gear wheel (gear), screw gear etc. with drive motor possible. On each a, e.g. electrical, switching signal of an electr.
  • Control for changing the printing form the feed drive is activated so that the selected shifting device is optionally in Printing forme change position or in contact position of the forme cylinder 24 (Additional printing unit 29, 31) with the rubber cylinder 26 of the specified Single printing unit 5.1, 5.2, 5.3, 5.4, 6.1, 6.2, 6.3, 6.4, (i.e. the Single printing unit (s) 5.1, 5.2, 5.3, 5.4, 6.1, 6.2, 6.3, 6.4 that for a cooperation can be set up with an additional printing unit 29, 31).
  • the additional printing units 29, 31 are, as already stated, speed and angular synchronism z. B. with impression cylinder 8 of the printing unit 1, 28 and the other Printing units 6.1, 6.2, 6.3, 6.4, 5.1, 5.2, 5.3, 5.4, driven.
  • a motor pin of the 3-phase main drive motor flanged on the outside of the side frame of the drive side of the base frame 2 10 at one end of a cylinder pin 44 of the Back pressure cylinder 8 coupled.
  • a high-resolution pulse disk 46 is on the other Cylinder pin 44 of the impression cylinder 8 attached.
  • the pulse disk 46 cooperates a frame-fixed digital speed and rotation angle encoder 47 des Main drive motor 10, a frequency-controlled three-phase motor 10 together and generates the speed and angle of rotation actual value 48, which is a setpoint / actual value comparator 51 is fed. He must-. Actual value comparator 51 generates a control deviation value 52 which a control device 53 is supplied. The control device 53 generates the manipulated variable 54, that of, e.g. from a three-phase frequency controller 56 and the three-phase motor 10 existing control path 58 is supplied.
  • the drive motors 35, 36 of the additional printing units thus drive the cylinders and Rolling the additional printing units 29, 31 e.g. according to the "master - slave" principle.
  • the additional printing units 29, 31 are, as already stated, synchronously z. B. to Impression cylinder 8 and the other printing units 6.1, 6.2, 6.3, 6.4, 5.1, 5.2, 5.3, 5.4, driven.
  • a device 55 and 60 of the respective speed and angle of rotation actual value provided. It can e.g. each from one high-resolution pulse disk 62; 63 and one interacting with her frame-mounted pulse generator 61; 64 exist. It is easiest of all Drive motor 35 or 36 driven cylinder at its drive-free end to provide the high-resolution pulse disk 62, 63 in each case.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rotary Presses (AREA)
EP01126248A 2000-11-11 2001-11-05 Unité d'impression polychrome pour une machine d'impression rotative à feuilles Withdrawn EP1205297A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10056053 2000-11-11
DE10056053 2000-11-11

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EP1205297A1 true EP1205297A1 (fr) 2002-05-15

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1295718A1 (fr) * 2001-07-25 2003-03-26 Metronic AG Dispositif de guidage de feuilles pour une unité d'impression polychrome d'une machine d'impression rotative à feuilles

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999025556A1 (fr) * 1997-11-18 1999-05-27 Torald Rohloff Dispositif d'impression
DE19812226A1 (de) * 1998-03-20 1999-09-23 Koenig & Bauer Ag Verfahren und Einrichtung zum Bebildern

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999025556A1 (fr) * 1997-11-18 1999-05-27 Torald Rohloff Dispositif d'impression
DE19812226A1 (de) * 1998-03-20 1999-09-23 Koenig & Bauer Ag Verfahren und Einrichtung zum Bebildern

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1295718A1 (fr) * 2001-07-25 2003-03-26 Metronic AG Dispositif de guidage de feuilles pour une unité d'impression polychrome d'une machine d'impression rotative à feuilles

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