EP0909645A2 - Transport drum in a rotary press - Google Patents

Transport drum in a rotary press Download PDF

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Publication number
EP0909645A2
EP0909645A2 EP98113656A EP98113656A EP0909645A2 EP 0909645 A2 EP0909645 A2 EP 0909645A2 EP 98113656 A EP98113656 A EP 98113656A EP 98113656 A EP98113656 A EP 98113656A EP 0909645 A2 EP0909645 A2 EP 0909645A2
Authority
EP
European Patent Office
Prior art keywords
transport drum
support elements
elevator
resilient
carrier material
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
EP98113656A
Other languages
German (de)
French (fr)
Other versions
EP0909645B1 (en
EP0909645A3 (en
Inventor
Karl-Heinz Helmstädter
Raimund Schröder
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
Priority to DE19745763 priority Critical
Priority to DE1997145763 priority patent/DE19745763A1/en
Application filed by Heidelberger Druckmaschinen AG filed Critical Heidelberger Druckmaschinen AG
Publication of EP0909645A2 publication Critical patent/EP0909645A2/en
Publication of EP0909645A3 publication Critical patent/EP0909645A3/en
Application granted granted Critical
Publication of EP0909645B1 publication Critical patent/EP0909645B1/en
Anticipated expiration legal-status Critical
Not-in-force legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41FPRINTING MACHINES OR PRESSES
    • B41F22/00Means preventing smudging of machine parts or printed articles

Abstract

The invention relates to a transport drum in rotary printing presses with an elevator for preventing a fresh printed product from being smeared when it is transported through the machine, the elevator being fastened on the lateral surface of the transport drum (24) and made of a carrier material (6) with thread-shaped fastenings fastened therein Support elements (7-9), wherein an ink-repellent material (10) is applied to the outer ends of the support elements. <IMAGE>

Description

The invention relates to a transport drum in rotary printing machines with an elevator to prevent smearing of a fresh printed product when transporting it through the machine, the elevator on the Shell surface of the transport drum is attached and made of a carrier material there is attached thread-like support elements.

From DE 14 71 728 B a guide or counter pressure roller is known, the one has such elevator, the thread-like in the known embodiment Support elements protrude vertically from the elevator and from a flexible Are made of polyamide. It has been shown that these pointed filiform Support elements can dig into the fresh printing ink and become one Damage to the surface. Color particles can also be removed that are distracting in other areas of the printed image. As Alternative embodiment shown in the known publication Support elements as loops, but requires a higher manufacturing effort, especially if the individual loops are at the same height Should have drum surface.

In another known version of an elevator on a Transport drum (EP 0 036 937 B1), a body material is used, the fresh printed printed products. In this embodiment, too Color exclusion of the elevator does not rule out, so that at certain intervals Cleaning the elevator is required. If the cleaning is done in the machine, so the rubbed off paint residues can contaminate others Cause machine parts that can lead to pressure disturbances.

Starting from this prior art, it is the object of the present invention a smearing or settling of color particles on the support elements of the To prevent elevator largely to affect the fresh Avoid the printed image on the printed product.

According to the invention the object is achieved in that the support elements are resilient and that at the outer ends of the support elements paint-repellent material is applied. Due to the resilient training of Support elements can be a relative movement of the printed product on the Follow the transport drum without any movement between them and the Print product itself takes place. After the printed product the transport drum has left, the individual support elements spring back to their starting position back. By applying a color-repellent material to the outer The end of the support elements prevents the transfer of color particles and thus damage to the printed image. It also makes the Support area for the printed product enlarged, so that penetration of the Support elements in the printing ink is also prevented. Still will created very small support points for the printed product, so that a damage-free transport of the same is guaranteed.

In an advantageous embodiment of the invention, the Support elements applied a small amount of chrome. Chrome is a color-repellent material, which has the additional advantage that the Support elements have a high wear resistance.

In a further advantageous embodiment of the invention, the support elements attached obliquely in the carrier material, so that depending on the material of the support elements a high suspension of the same is achieved.

A further advantageous embodiment of the invention is characterized in that that the support elements are designed to be resilient radially to the transport drum. The resilient training can e.g. B. in loop form or in spiral form Supporting elements can be executed. Furthermore, by a resilient Training of the carrier material improves the spring action of the support elements be, so that a relatively stiff material for the support elements use Can be found. This also allows the support elements not only in circumferential and Longitudinal direction of the transport drum, but also in the radial direction, so that improves the handling of the transport drums and lubrication of the Print products are prevented with certainty.

An embodiment of the invention is schematic in the drawings shown.

It shows:

Fig. 1
a view of the transport drums in a printing press,
Fig. 2
resilient support elements with a paint-repellent material at their outer ends,
Fig. 3
radially resilient support elements with color-repellent material,
Fig. 4
Support elements arranged diagonally in the carrier material with color-repellent material.

In the scheme of a rotary printing press shown in FIG Print product from a printing cylinder 1 via three transport drums 2, 3, 4 one hand over the next printing cylinder 5. The printed product with one color passes from the impression cylinder 1 to the transport drum 2 and lies here with the fresh paint inside on this transport drum. After that it gets on the Transport drum 3 transferred so that the fresh printing ink to be outside comes and then arrives at the transport drum 4 also with an internal one fresh ink. From this the printed product is transferred to the next one Pass over cylinder 5 and get the next color printed here. So is on the transport drums 2 and 4 an elevator to prevent greasing the fresh ink when the print products are transported through the machine required. The elevator is attached to the outer surface of the transport drum and consists of a carrier material 6 with flexible thread-shaped fastened therein Support elements 7, 8, 9.

The support elements 7, 8, 9 are resilient and are radial to FIG Carrier material arranged. You can do this as indicated by arrows in all Directions spring and move after transporting the printed product back to their starting position. At their outer end are at the Support elements 7, 8, 9 applied ink-repellent caps 10, which preferably are made of chrome and galvanically attached. This color-repellent Material is applied in small quantities and takes about one when applied Spherical shape.

In Fig. 3, support elements 8 are shown which are resilient radially to the transport drum 2, 4 are trained. The support elements 8 can be a loop shape or a Have a spiral shape to achieve a high spring effect. The support elements 9 4 are arranged obliquely in the carrier material 6, so that this also a high spring effect is achieved radially to the transport drum 2, 4. At the same time they can move relative to the carrier material 6, so that damage of the printed image is excluded.

REFERENCE SIGN LIST

1
Impression cylinder
2nd
Transport drum
3rd
Transport drum
4th
Transport drum
5
Impression cylinder
6
Backing material
7
Support element
8th
Support element
9
Support element
10th
cap

Claims (5)

  1. Transport drum in rotary printing presses with an elevator for preventing a fresh printed product from being smeared when it is transported through the machine, the elevator being fastened to the lateral surface of the transport drum and consisting of a carrier material with thread-like supporting elements fastened therein,
    characterized,
    that the support elements (7, 8, 9) are resilient and that an ink-repellent material (10) is applied to the outer ends of the support elements (7, 8, 9).
  2. Transport drum according to claim 1,
    characterized,
    that a small amount of chromium is applied to the outer ends of the support elements (7, 8, 9).
  3. Transport drum according to claim 1 or 2,
    characterized,
    that the support elements (9) are arranged obliquely in the carrier material (6).
  4. Transport drum according to claim 1 or 2,
    characterized,
    that the support elements (8) radially to the transport drum (4) are resilient.
  5. Transport drum according to claim 1,
    characterized,
    that the carrier material (6) is designed to be resilient.
EP98113656A 1997-10-16 1998-07-22 Transport drum in a rotary press Not-in-force EP0909645B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE19745763 1997-10-16
DE1997145763 DE19745763A1 (en) 1997-10-16 1997-10-16 Transport drum in rotary printing machines

Publications (3)

Publication Number Publication Date
EP0909645A2 true EP0909645A2 (en) 1999-04-21
EP0909645A3 EP0909645A3 (en) 1999-10-06
EP0909645B1 EP0909645B1 (en) 2002-02-27

Family

ID=7845745

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98113656A Not-in-force EP0909645B1 (en) 1997-10-16 1998-07-22 Transport drum in a rotary press

Country Status (4)

Country Link
US (1) US6105499A (en)
EP (1) EP0909645B1 (en)
JP (1) JPH11188843A (en)
DE (1) DE19745763A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6811863B2 (en) * 2001-07-20 2004-11-02 Brite Ideas, Inc. Anti-marking coverings for printing presses
DE102005046864A1 (en) * 2005-09-30 2007-04-05 Man Roland Druckmaschinen Ag Transport roller pair for printing machine, has forwarding rolls fastened on shafts, and bristles and plates arranged radial to shafts, where each of bristles and plates exhibit condensation unit at end, which is detached from shafts
DE102005050070A1 (en) * 2005-10-19 2007-04-26 Koenig & Bauer Ag Sheet guiding device of sheet-fed rotary printing press, comprises layer of highly elastic material on surface of drum caps
DE102011009651A1 (en) * 2011-01-27 2012-08-02 Manroland Ag Guide roll for rotary printing machine, has outer periphery that defines functional surface having several radially outwardly projecting protrusions spaced apart around outer periphery without interrupting course of functional surface

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1471728A1 (en) * 1962-12-14 1968-12-05 Velcro Corp Guiding and deflection roller
DE7007567U (en) * 1970-02-28 1970-10-29 Wilhelm Barenschee Maschinenfa Roller for guiding and redirecting bahnfoermigen materials, particularly of printed paper webs.
EP0036937A1 (en) * 1980-03-31 1981-10-07 Heidelberger Druckmaschinen Aktiengesellschaft Sheet transfer cylinder for rotary printing machines
EP0417497A2 (en) * 1989-09-14 1991-03-20 MAN Roland Druckmaschinen AG Transfer drum in rotary presses
DE3931479A1 (en) * 1989-09-21 1991-04-04 Heidelberger Druckmasch Ag Bow-leading film as lift for counterpressure cylinders and bow transfer cylinders in bow-offset printing machines for beautiful and reprinting
EP0723865A1 (en) * 1995-01-27 1996-07-31 DeMoore, Howard W. Method and apparatus for handling printed sheet materials

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7522036U (en) * 1975-07-11 1977-05-05 Heidelberger Druckmaschinen Ag, 6900 Heidelberg Transfer drum for sheet rotary printing machine
DE3328451A1 (en) * 1983-08-06 1985-02-21 Heidelberger Druckmasch Ag Lubrication-free replacement drum for arc total printing machines
DE3636359A1 (en) * 1986-10-25 1988-04-28 Koenig & Bauer Ag Printing unit with short inking in a rotational printing machine
DE3826348C2 (en) * 1988-08-03 1992-08-27 Man Roland Druckmaschinen Ag, 6050 Offenbach, De
DE3939479C2 (en) * 1989-11-29 1993-07-15 Christian 8922 Peiting De Tobin
DE4230567C2 (en) * 1992-09-12 1994-06-30 Heidelberger Druckmasch Ag Foil as elevator for an impression cylinder of an offset sheet-fed rotary printing press for perfecting
US6119597A (en) * 1994-06-14 2000-09-19 Howard W. DeMoore Method and apparatus for handling printed sheet material
DE19513427C2 (en) * 1995-04-08 2002-07-11 Koenig & Bauer Ag Sheet guiding device on sheet guiding cylinders in printing machines

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1471728A1 (en) * 1962-12-14 1968-12-05 Velcro Corp Guiding and deflection roller
DE7007567U (en) * 1970-02-28 1970-10-29 Wilhelm Barenschee Maschinenfa Roller for guiding and redirecting bahnfoermigen materials, particularly of printed paper webs.
EP0036937A1 (en) * 1980-03-31 1981-10-07 Heidelberger Druckmaschinen Aktiengesellschaft Sheet transfer cylinder for rotary printing machines
EP0417497A2 (en) * 1989-09-14 1991-03-20 MAN Roland Druckmaschinen AG Transfer drum in rotary presses
DE3931479A1 (en) * 1989-09-21 1991-04-04 Heidelberger Druckmasch Ag Bow-leading film as lift for counterpressure cylinders and bow transfer cylinders in bow-offset printing machines for beautiful and reprinting
EP0723865A1 (en) * 1995-01-27 1996-07-31 DeMoore, Howard W. Method and apparatus for handling printed sheet materials

Also Published As

Publication number Publication date
US6105499A (en) 2000-08-22
EP0909645B1 (en) 2002-02-27
DE19745763A1 (en) 1999-04-22
JPH11188843A (en) 1999-07-13
EP0909645A3 (en) 1999-10-06

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