EP1235685A1 - Mecanisme d'encrage d'une machine d'impression - Google Patents

Mecanisme d'encrage d'une machine d'impression

Info

Publication number
EP1235685A1
EP1235685A1 EP00983149A EP00983149A EP1235685A1 EP 1235685 A1 EP1235685 A1 EP 1235685A1 EP 00983149 A EP00983149 A EP 00983149A EP 00983149 A EP00983149 A EP 00983149A EP 1235685 A1 EP1235685 A1 EP 1235685A1
Authority
EP
European Patent Office
Prior art keywords
roller
inking
ink
inking unit
drivable
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
EP00983149A
Other languages
German (de)
English (en)
Other versions
EP1235685B1 (fr
Inventor
Peter Hummel
Robert Ortner
Peter Schramm
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
Publication of EP1235685A1 publication Critical patent/EP1235685A1/fr
Application granted granted Critical
Publication of EP1235685B1 publication Critical patent/EP1235685B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F31/00—Inking arrangements or devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F31/00—Inking arrangements or devices
    • B41F31/30—Arrangements for tripping, lifting, adjusting, or removing inking rollers; Supports, bearings, or forks therefor

Definitions

  • the invention relates to an inking unit for a printing press according to the preambles of the main and secondary claims.
  • an inking unit of this type for a printing press is known that can be operated as a convertible lifter / film inking unit.
  • the inking unit consists of one
  • the lifter roller can be stopped if an additional roller can be set between the ink fountain roller and the downstream inking roller during film operation.
  • a lifter inking unit is known from DE 37 06 602 C2. Thereafter, the printing ink to be processed is transferred from an ink fountain roller as an ink feed roller to a first one by means of an inking roller
  • Inking roller (1st inking roller) transferable. Furthermore, an inking roller train is arranged downstream of the first inking unit roller and has several inking rollers resting on a plate cylinder. In the direction of rotation of the plate cylinder, a first upstream inking roller is coupled to a downstream inking roller by an inking roller. There is one in the inking roller above Ink distribution roller arranged, which is on the one hand with the ink supply (ink fountain roller, inking roller and first inking roller) and on the other hand with a first and a parallel connected second roller train with the ink application rollers on the plate cylinder in functional connection.
  • the ink supply ink fountain roller, inking roller and first inking roller
  • a lifter inking unit for a printing press is known from FR 574 658, in which the oscillating inking roller is arranged between the ink fountain roller and the downstream ink fountain roller with roller train. At least one first calender roller is assigned to the downstream inking roller in a constantly frictional contact, with the position of the bearing being variable, the ink transport to the roller train between the first calender roller and a downstream second inking roller being periodically separable. The movement of the lifter roller is coupled with the movement of the calender rollers by means of common cam control.
  • the object of the invention is to create an inking unit for a printing press that avoids the disadvantages mentioned, that in particular allows stable ink guidance in the inking unit and allows simple construction in the inking roller train.
  • the task is solved by the training features of main and secondary claims. Further training results from the subclaims.
  • inking unit according to the invention is that the simple construction according to the invention enables a noticeable reduction in the number of rollers within the roller train. Another advantage is that there is no siphon in the inking unit.
  • the ink is supplied without an inking roller and fluctuations in ink density are noticeably reduced. This means that stable ink guidance can be achieved even with a single drum roller with a small number of inking rollers.
  • the ink flow in the inking unit can be separated in time, especially on the first inking unit roller assigned to the ink supply (1st or 2nd inking device), and at the same time the ink film transferred from the ink supply roller (e.g. the ink fountain roller) on the lateral surface of this inking unit roller ( 1st or 2nd color rubber) is leveled.
  • the ink supply roller e.g. the ink fountain roller
  • the movement of the ink supply roller can preferably be coupled to the movement of at least one calender roller which is in contact with the first drivable inking unit roller (1st inking device) and / or with the second drivable inking unit roller (2nd inking device) in order to form the desired one Accelerate color film.
  • Fig. 1 shows a first inking unit with a constant
  • Fig. 2 shows a first inking unit with a clocked
  • Fig. 4 shows a second inking unit with a clocked
  • Fig. 5 shows a second inking unit with a constant
  • an inking unit for coloring a printing form fixable on a plate cylinder 2 is arranged in a printing unit.
  • the plate cylinder 2 is functionally connected to a blanket cylinder 1 and the blanket cylinder 1 is connected to a sheet guiding cylinder.
  • the plate cylinder 2 is assigned a dampening unit 3 with a dampening agent tank 4 in the direction of rotation in front of the inking unit.
  • the dampening unit 3 is preferred can be integrated into the inking unit using a switchable bridge roller.
  • the printing unit can also be operated using dry offset (dampening solution-free offset printing).
  • the dampening unit 3 or at least the dampening roller can be separated from the plate cylinder 2 and / or at least separable from the dampening solution supply, or the printing unit is designed without a dampening unit 3.
  • the inking unit consists, among other things, of an ink feed system which is formed at least from a drivable, inkable ink feed roller 15.
  • the ink supply roller 15 is an ink fountain roller which is functionally connected to an ink metering device and an ink fountain 16.
  • the ink supply system can also be carried out by means of at least one ink dispensing device which is directly assigned to the ink supply roller 15 and is preferably movable axially to the ink supply roller 15.
  • the ink supply roller 15 is functionally connected to a first inking unit roller 14 (1st inking device) directly downstream in the inking unit, this first inking unit roller 14 preferably being axially changeable and, in particular, being driven in rotation.
  • the first inking unit roller 14 (1st inking device) is followed by a roller train which, among other things, is functionally connected to a plurality of inking rollers 5 assigned to the plate cylinder 2.
  • the drivable first inking roller 14 has several, in the present example three,
  • Subordinate transfer rollers 12 A transfer roller 12 is followed by a second inking unit roller 9 (2nd inking device), which is preferably axially changeable and in particular can be driven in rotation.
  • the second inking roller 9 is frictionally connected to the roller catch a first calender roller 10 in constant contact, which can be brought into a functional connection periodically with an ink roller 7 following in the direction of the plate cylinder 1, here a distributor roller.
  • This inking roller 7 is preferably in direct contact with two inking rollers 5 assigned to the plate cylinder 2 (2nd and 3rd inking rollers in the direction of rotation of the plate cylinder).
  • the ink transport can be separated by the movable calender roller 10 to the roller train with at least one inking roller 5 at a separation point.
  • the second inking roller 9 is assigned a transfer roller 11 in constant contact in addition to the first calender roller 10.
  • a third inking unit roller 6 (3rd inking device), which is preferably axially changeable and in particular rotatable, is arranged downstream of the transfer roller 11 and is in contact with two inking rollers 5.
  • These inking rollers 5 are arranged in the direction of rotation of the plate cylinder 2 as first and second inking rollers 5.
  • the first and second inking rollers 5 are further followed by two further inking rollers 5 (3rd and 4th inking rollers in the direction of rotation of the plate cylinder), which with a preferably axially changeable and in particular rotatably drivable fourth inking roller 8 (4th inking device) in Are functional connection.
  • the ink supply roller 15 is functionally connected to an adjustment system 13.
  • this is an eccentrically adjustable cam roller for setting a gap 19 between the ink supply roller 15 and the directly assigned first inking unit roller 14 (FIGS. 1 and 2).
  • the setting system 13 is optional frame-fixed or portable stop 18, alternatively a control cam, in contact.
  • the gap 19 can be adjusted to a defined size by means of the adjustment system 13 and stop 18 in order to set the desired film thickness, the gap size preferably being less than 1 mm.
  • the ink is fed from the ink feed roller 15 directly to the first inking roller 14 by means of ink splitting. There is thus an uninterrupted, thin layer of paint in the gap 19 of constant size
  • the ink fountain 16 with the ink feed roller 15 is mounted in at least one swivel joint 17 in an axis of rotation.
  • the ink fountain 16 can be pivoted with the ink feed roller 15 (and ink metering device) by means of at least one actuating device in the swivel joint 17 and intermittently toward the first inking unit roller 14 mounted on the frame or can be moved away therefrom.
  • at least one working cylinder or at least one portable stop 18 can be used as the actuating device.
  • the gap 19 which has already been defined and set ensures the desired film thickness and that the ink supply roller 15 does not make any contact with the first inking unit roller 14.
  • the set gap 19 is increased beyond the (metered) layer thickness located on the ink supply roller 15 such that the ink film formation to the first inking unit roller 14 is interrupted in cycles. Ie it is only periodically a thin layer of ink (ink film) can be fed into the downstream roller train.
  • This clocked mode of operation of the ink supply roller 15 is useful, for example, synchronously or asynchronously when the channel of the plate cylinder 2 is passing through. This method of operation can also be implemented taking into account the print subject.
  • the ink metering device is preferably arranged upstream of the gap 19 in the direction of rotation of the ink supply roller 15.
  • the transfer roller 11 can alternatively also be designed as a calender roller (2nd calender roller).
  • the transfer roller 11 is in constant frictional contact with the second inking roller 9 and can be brought into contact with the downstream third inking roller 6 periodically.
  • the transfer roller 12 immediately adjacent to the first inking roller 14 can also be designed as a calender roller. This transfer roller 12 is in constant contact with the first inking roller 14 and can be brought into contact with the downstream transfer roller 12 periodically.
  • the transfer roller 12 as a calender roller and the second inking unit roller 9 are assigned at least one calender roller 10.
  • the inking unit according to FIGS. 1 and 2 is designed with a relatively long roller train, that is to say many rollers with a corresponding number of nips.
  • the inking unit roller train can be shortened further by eliminating the transfer rollers 12 and the first inking unit roller 14 (1st inking device).
  • the ink is supplied at least by means of the inking roller 15, which can be inked and is functionally connected to an adjustment system 13, directly onto the second inking roller 9 (2nd inking device), which is preferably axially changeable and in particular can be driven in rotation.
  • a defined gap 19 can be fixed between the rollers 15, 9 by means of an adjustment system 13.
  • the second inking roller 9 is again the first on the circumference
  • Calender roller 10 is assigned in constantly frictional contact, which can be brought into functional connection periodically with the inking roller 7 (distributor roller) following in the direction of the plate cylinder 1, which in turn is in contact with two inking rollers 5.
  • the calender roller 10 is mounted in a frictionally displaceable manner with respect to the inking unit roller 9, so that the ink transport to the roller train can be periodically separated with at least one inking roller 5 at a separation point.
  • the second inking roller 9 is additionally assigned the transfer roller 11 on the circumferential side in constant contact.
  • the third inking roller 6 (3rd inking roller), which is preferably axially changeable and in particular rotatable, is arranged downstream, which is in contact with the following two inking rollers 5 (1st and 2nd inking roller).
  • two further inking rollers 5 are arranged downstream of these inking rollers 5, which are in contact with a fourth inking unit roller 8 (4th inking device), which is preferably axially changeable and in particular can be driven in rotation.
  • 3-5 is in the direction of rotation of the ink supply roller 15 in front of the gap 19, the ink metering device arranged.
  • an ink dispensing device can be used, which can be moved axially to the ink supply roller 15.
  • a constant ink supply to the subsequent second inking unit roller 9 can be achieved by means of an adjustment system 13. If present, the ink fountain 16 with inkable ink feed roller 15 in the swivel joint 17 is stopped. The ink transfer takes place directly from the ink feed roller 15 to the second inking roller 9 by means of ink splitting in the gap 19, the gap size of which is preferably less than 1 mm.
  • the transfer roller 11 can be switched either as a calender roller or in constant contact with the second inking roller 9 (2nd inking device) and the third inking unit roller 6 (3rd inking device). In these training courses, a periodic or constant color flow is guaranteed via the front-load single drum roller. In contrast, the connection between the first calender roller 10 and the inking roller 7 (distributor roller) can be periodically separated.
  • the ink fountain 16 with ink feed roller 15 can be moved or moved away from the second inking roller 9 (2nd inking device) in cycles by means of an actuating device, for example at least one working cylinder or a stop 18, about the axis of the swivel joint 17.
  • the inking roller 15 is assigned the setting system 13 (preferably with stop 18) for adjusting the gap 19 to the desired film thickness between the ink supply roller 15 and the second inking roller 9.
  • the gap 19 also ensures here that there is no contact with the inking roller 9.
  • a clocked ink supply is due to the preferred pivoting movement of the Ink feed roller 15 can be realized. Ie the ink film formation is interrupted in cycles to the second inking unit roller 9, so that an ink layer (ink film) can be periodically transferred to the subsequent roller train.
  • At least one calender roller 10 and one transfer roller 11 are assigned to the second inking roller 9 (2nd inking device), the transfer roller 11 optionally also being operable as a second calender roller.
  • the calender roller 10 is in contact on the circumferential side with the second inking roller 9 and can be contacted periodically with the inking roller 7 (distributor roller).
  • the transfer roller 11 is arranged on the circumferential side in constant contact with the second inking roller 9 (second inking device) and the downstream third inking unit roller 6 (3rd inking device).
  • the transfer roller 11 can also be designed as a second calender roller (analogous to the calender roller 10), periodically contactable with the third inking roller 6 (3rd inking device).
  • the inking unit is preferably designed analogously to Figure 3.
  • the inkable inking roller 15 with ink fountain 16, if present, can be stopped in the swivel joint 17.
  • a constant ink supply can be achieved through the gap 19 fixed by means of the adjustment system 13.
  • the inking unit (FIG. 5) is also designed according to FIG. 4.
  • the ink feed roller 15 can be moved in a clocked manner in order to periodically enlarge the defined gap 19 and to realize a clocked ink feed.
  • the second inking roller 9 are gem. Fig. 5 circumferentially associated with two calender rolls 10, 11 (transfer roll 11 as a calender roll).
  • the ink feed roller 15, which can be driven in rotation is coupled with the pivoting movement of at least the first calender roller 10 (preferably also with the transfer roller 11 as a calender roller) in such a way that the rollers 15, 10, 11 can be driven synchronously.
  • ink supply roller 15 being optionally drivable synchronously or preferably asynchronously to the first calender roller 10 or to the transfer roller 11.
  • the ink is supplied by means of the drivable, colored ink feed roller 15 through the gap 19 to the drivable first inking roller 14 (according to FIGS. 1-2). There is no contact between the ink feed roller 15 and the first inking roller 14. Depending on the film layer thickness set by means of the setting system 13, the inking roller 14 removes the printing ink from the ink feed roller 15 constantly or periodically (in the case of a clocked ink feed roller 15) and guides it to the downstream transfer rollers 12 to.
  • the printing ink is fed from the transfer rollers 12 by splitting the drivable second inking roller 9. If the first transfer roller 12, which is in frictional engagement with the ink supply roller 15, is designed as a calender roller which swings around the ink supply roller, the ink film is formed on the first transfer roller 12, which is in frictional engagement with the ink supply roller 15, is designed as a calender roller which swings around the ink supply roller, the ink film is formed on the
  • Ink feed roller 15 leveled and periodically transported to the subsequent transfer roller 12.
  • the calender roller 10 is in frictional engagement with the second inking roller 9 and swings about the axis of the inking roller 9 such that the calender roller 10 remains in constant frictional contact with the inking roller 9 and at the same time the ink flow to the downstream inking roller 7 can be periodically separated.
  • the Calender roller 10 the ink film located on the outer surface of the inking roller 9 into a uniform ink film. Furthermore, the ink is transferred periodically to the inking roller 7 and subsequently to the inking rollers 5, including the fourth inking roller 8. To the inking roller 9, the transfer roller 11 is still in constant frictional contact.
  • the transfer roller 11 is preferably designed for the constant transfer of the ink in contact with the downstream third inking roller or for the periodic transfer of ink as a calender roller, analogous to the calender roller 10.
  • the ink is fed directly from the ink feed roller 15 to the second inking roller 9.
  • the further ink flow takes place analogously to the above-mentioned procedure.

Abstract

L'invention concerne un mécanisme d'encrage d'une machine d'impression dotée d'un rouleau d'alimentation en encre. L'invention a pour objet de créer un mécanisme d'encrage de ce type qui permette une alimentation en encre stable dans le mécanisme d'encrage et qui soit de construction simple. A cet effet, un rouleau d'alimentation en encre (15) est associé à un rouleau d'encrage (14, 9) entraîné en respectant une fente (19), le rouleau d'encrage (14) ou (9) étant associé à au moins un rouleau de calandre (10).
EP00983149A 1999-11-23 2000-11-21 Mecanisme d'encrage d'une machine d'impression Expired - Lifetime EP1235685B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19956149 1999-11-23
DE19956149A DE19956149A1 (de) 1999-11-23 1999-11-23 Farbwerk für eine Druckmaschine
PCT/EP2000/011549 WO2001038095A1 (fr) 1999-11-23 2000-11-21 Mecanisme d'encrage d'une machine d'impression

Publications (2)

Publication Number Publication Date
EP1235685A1 true EP1235685A1 (fr) 2002-09-04
EP1235685B1 EP1235685B1 (fr) 2003-05-21

Family

ID=7929925

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00983149A Expired - Lifetime EP1235685B1 (fr) 1999-11-23 2000-11-21 Mecanisme d'encrage d'une machine d'impression

Country Status (11)

Country Link
US (1) US6871590B1 (fr)
EP (1) EP1235685B1 (fr)
JP (1) JP3759038B2 (fr)
CN (1) CN1198724C (fr)
AT (1) ATE240837T1 (fr)
AU (1) AU2000901A (fr)
CA (1) CA2396684A1 (fr)
CZ (1) CZ299315B6 (fr)
DE (2) DE19956149A1 (fr)
RU (1) RU2225292C1 (fr)
WO (1) WO2001038095A1 (fr)

Families Citing this family (11)

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Publication number Priority date Publication date Assignee Title
DE10248517B4 (de) 2002-10-17 2009-10-15 Manroland Ag Vorrichtung zur Farbführung in einer Offsetdruckmaschine
DE10352616A1 (de) * 2003-07-11 2005-02-10 Koenig & Bauer Ag Druckwerk einer Druckmaschine
DE102004057817A1 (de) * 2003-12-15 2005-07-14 Heidelberger Druckmaschinen Ag Changiermechanismus für eine Reibwalze einer Druckmaschine
JP3823211B1 (ja) * 2005-03-29 2006-09-20 アイマー・プランニング株式会社 印刷機
ATE456456T1 (de) * 2006-05-23 2010-02-15 Koenig & Bauer Ag Anordnungen in einem druckwerk einer rotationsdruckmaschine
CN101495315B (zh) * 2006-05-23 2011-02-02 柯尼格及包尔公开股份有限公司 具有油膜传墨辊的轮转印刷机输墨装置
DE102009045922B4 (de) * 2009-10-22 2014-08-14 Koenig & Bauer Aktiengesellschaft Vorrichtung in einem Druckwerk einer Druckmaschine
DE102010051031A1 (de) 2009-12-11 2011-06-16 Heidelberger Druckmaschinen Ag Farbwerk
CN107757117B (zh) * 2017-11-17 2023-12-19 三河市兴达印务有限公司 一种节约墨水的uv印刷机用印刷机构
CN111070887A (zh) * 2019-12-23 2020-04-28 高斯图文印刷系统（中国）有限公司 一种商业轮转胶印机的墨路系统的排列结构
CN112339426A (zh) * 2020-10-28 2021-02-09 广水市众诚机械有限公司 一种用于曲面胶印机的墨站动力系统

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Also Published As

Publication number Publication date
WO2001038095A1 (fr) 2001-05-31
EP1235685B1 (fr) 2003-05-21
AU2000901A (en) 2001-06-04
US6871590B1 (en) 2005-03-29
CN1198724C (zh) 2005-04-27
RU2225292C1 (ru) 2004-03-10
CN1423594A (zh) 2003-06-11
JP3759038B2 (ja) 2006-03-22
JP2003514697A (ja) 2003-04-22
RU2002116685A (ru) 2004-01-20
CA2396684A1 (fr) 2001-05-31
ATE240837T1 (de) 2003-06-15
CZ20021762A3 (cs) 2002-10-16
DE19956149A1 (de) 2001-06-07
DE50002305D1 (de) 2003-06-26
CZ299315B6 (cs) 2008-06-18

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