EP0023251A1 - Dispositif d'alimentation en encre pour un systéme d'encrage à rouleaux dans les machines d'impression rotatives - Google Patents

Dispositif d'alimentation en encre pour un systéme d'encrage à rouleaux dans les machines d'impression rotatives Download PDF

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Publication number
EP0023251A1
EP0023251A1 EP80103057A EP80103057A EP0023251A1 EP 0023251 A1 EP0023251 A1 EP 0023251A1 EP 80103057 A EP80103057 A EP 80103057A EP 80103057 A EP80103057 A EP 80103057A EP 0023251 A1 EP0023251 A1 EP 0023251A1
Authority
EP
European Patent Office
Prior art keywords
roller
transfer roller
supply device
ink
rollers
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Withdrawn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
EP80103057A
Other languages
German (de)
English (en)
Inventor
Willi Jeschke
Rudi Junghans
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 EP0023251A1 publication Critical patent/EP0023251A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F31/00—Inking arrangements or devices
    • B41F31/02—Ducts, containers, supply or metering devices
    • B41F31/14—Applications of messenger or other moving transfer rollers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F31/00—Inking arrangements or devices
    • B41F31/26—Construction of inking rollers

Definitions

  • the invention relates to an ink supply device of a roller inking unit for rotary printing presses with an ink fountain roller and a transfer roller, which also cooperates with one of the inking unit rollers in addition to the ink fountain roller.
  • Ink supply devices are known, for example, in which either an inking roller or a film roller works together with the inking roller.
  • Lifter inking units can only produce a discontinuous ink supply.
  • the ink transfer by means of an inking roller is neither exactly uniform in the circumferential direction nor across the machine width.
  • Film inking units enable even ink transfer when using high-precision rollers and bearings, but then require extreme effort in terms of the rigidity of the components and the high quality of the roller bearings.
  • the difference in speed between the ink fountain roller and the transfer roller interacting with it lies with these film inking units.
  • the ink fountain roller in particular is detrimentally affected by the action of the ink control device (ink knife), one of the rollers with relatively poor concentricity or with deflection, which hinders the uniform ink removal.
  • the transfer of small amounts of ink and the return of the ink in areas with low ink requirements is inadequate in the known inking units.
  • a crucial disadvantage of conventional film inking units is their temperature sensitivity. As the temperature rises, different thermal expansion of components leads to incorrect color transfer.
  • the object of the invention is to provide an ink supply device in which concentricity and position errors of the ink fountain roller, the transfer roller and the next inking unit roller driven at machine speed as well as temperature influences on the Gü te the color transfer can not affect.
  • This object is achieved according to the invention by providing such flexibility of the roller body of the transfer roller perpendicular to its axis of rotation that the transfer roller automatically adapts to the shape of the shells of the adjacent rollers and fits snugly over its entire length both on the ink fountain roller and on the inking roller .
  • the transfer roller according to the invention makes complex storage and circuit elements unnecessary. Thinnest color films can be transferred continuously because the transfer roller adapts perfectly to the shape of the shells of the two adjacent rollers due to its flexibility.
  • the ink transfer becomes insensitive to any influences of the ink knife settings or the resulting roller bending.
  • the ink is transported back even when the ink layer is thin. Temperature influences are switched off.
  • Such an arrangement of the ink fountain roller and the first inking roller is particularly advantageous in that the transfer roller, due to its own weight, clings seamlessly to both the ink fountain roller and the inking roller without an air gap.
  • FIG. 1 shows a transfer roller according to the invention, the roller body 1 of which consists of a series of coaxially aligned rollers 2 of the same size, each of which has a rigid core 3 with an elastomeric casing 4.
  • the rollers 2 are mounted on a control shaft 5 with considerable bearing play 6. They can consequently be displaced relative to one another in the radial direction. In the lateral direction, the rollers 2 forming the roller body 1 are held together by a disk 7 and a circlip 8.
  • the transfer roller 28 fits snugly against the jackets 29 and 30 of the adjacent rollers, even if, for example, the ink fountain roller 26 due to strong local adjustment of the ink knife has significant deflection.
  • the rollers 2 lined up on the selector shaft 5 can also be produced in one piece.
  • the rollers 2 forming the flexible roller body 1 are provided with a hose 9 made of z. B. covered with a rubber material.
  • the rollers 2 are supported with considerable bearing play 6 on the control shaft 5 and the entire roller body 1, which consists of individual elements, is guided at its ends in the axial direction through the disks 7 and the circlips 8.
  • the rollers 2 can have the width of a color zone, for example.
  • the roller body 1 Due to the radial displaceability of the rollers 2 relative to one another and the elasticity of the hose 9, the roller body 1 has such a flexibility in the radial direction that these transfer rollers join the shape of the adjacent rollers going on, that would nestle up without an air gap. Shape and position errors of the co-operating rollers cannot adversely affect the quality of the ink film transferred.
  • the roller body 1 of the transfer roller according to the invention consists of a multiplicity of tubular rigid cores 10, which are lined up with a covering 11, for example a rubber material, and are thereby combined to form the roller body 1.
  • a control shaft 5 is provided, which has a roller bearing 13 at each of its two ends, on the outer ring of which a bearing bush 14 of the roller body 1 is supported when the transfer roller according to FIG. 3 is turned on or off. The guidance in the axial direction again takes over the disks 7 in connection with circlips 8.
  • the individual cores 10 have a considerable bearing play 6 on the inside of the switching shaft 5 on their inside.
  • the flexibility of the transfer roller according to FIG. 3 is such that if it were supported at its ends, a deflection of a few millimeters would occur in its central region.
  • the roller body 1 thus has the ability to fit snugly against the lateral surfaces of two slightly deformed lateral surfaces of adjacent rolls.
  • the transfer roller according to FIG. 4 differs from the ones described above in that rigid core elements are dispensed with.
  • the roller body 1 here consists of an elastic, continuous, tubular core 15, for. B. made of hard rubber or hard polyurethane and this immediate cover 16, which corresponds to the covers of conventional ink rollers, but possibly a higher Shore hardness
  • the mounting of the double-layer elastic roller body 1 on the selector shaft 5 corresponds to that in FIG. 3.
  • roller bearings 13, bearing bushes 14 and laterally leading disks 7 and circlips 8 are provided.
  • a considerable bearing play 6 is provided so that the transfer roller 28 has sufficient scope to adapt any deformed or out-of-round shells of the adjacent rollers.
  • the elasticity of the roller body 1 is such that it would bend a few millimeters in the middle due to its own weight as soon as it was supported exclusively at its ends.
  • FIG. 5 shows the same design of a transfer roller as in FIG. 4. Only additionally spring-loaded pressure rollers 17 are shown here, each of which press against the outer surface of the roller body 1 under the pressure of a helical spring 18. They are arranged coaxially to each other and each rotatably mounted on bracket 19.
  • the bracket 19 in turn are provided with guide bolts 20 which protrude through sliding bores 21 of a cross member 22. Between the bracket 19 and the inner wall 23 of the crossmember 22, the coil springs 18, which are pushed over each guide pin 20, are supported.
  • the cross member 22 is arranged to be pivotable. It can also be set such that the contact pressure of the pressure rollers 17 is varied.
  • a circlip 24 is provided on the upper free end of each bolt 20.
  • the pressure rollers 17 can have the width of a color zone, but they can also be made wider. Their contact pressure is such that the transfer roller is seamless due to the flexibility of its roller body 1, ie without an air gap on both adjacent rollers, that is, both on the ink fountain roller 26 and also applied to the first inking roller 27 or 33.
  • FIG. 6 shows a possible roller arrangement of an ink supply device according to the invention.
  • the ink fountain roller 26 mounted in the ink fountain 25 and the first inking roller, for example the friction roller 27, are arranged approximately at the same height.
  • the transfer roller 28 is loosely placed on the jacket 29 of the ink fountain roller 26 and on the jacket 30 of the friction roller 27 by the switching shaft 5.
  • the friction roller 27 rotates at machine speed, while the ink fountain roller 26 is driven at a much lower speed. Since the contact gap 31 between the transfer roller 28 and the friction roller 27 has a lower position than the contact gap 32 between the transfer roller 28 and the ink fountain roller 26, the transfer roller 28 is due to its own weight and the above-mentioned height ratios on the friction roller 27, which results has that it is entrained to a greater extent and thus its speed is closer to that of the friction roller 27 than that of the slower ink fountain roller 26. This higher peripheral speed of the transfer roller 28 in relation to the ink fountain roller 26 has the effect that the ink is not split by mutual rolling, but is continuously milled and transferred.
  • FIG. 5 Another roller arrangement is shown in FIG.
  • the ink fountain roller 26 mounted in the ink fountain 25 is significantly higher than the first inking roller 33, which in this case is not a friction roller.
  • the friction roller 27 only follows as the next roller of the inking unit. So that the transfer roller 28 fits snugly against the shells of the two adjacent rollers 26 and 33 due to its flexibility, two rows of pressure rollers 17, in the form shown in FIG. 5, are provided.
  • the upper pressure rollers 17 are compared to the inking roller 33 and the lower pressure rollers 17 of the ink fountain roller 26. By adjusting the upper pressure rollers 17 in direction A, the transfer roller is adjusted more strongly to the inking roller 33 and by correspondingly adjusting the lower pressure rollers 17 in direction B to the ink fountain roller 26.
  • the roller arrangement according to FIG. 8 corresponds to that in FIG. 7.
  • the transfer roller 28 bears against a very high ink fountain roller 26 and against a substantially lower inking roller 33, which in turn cooperates with the first friction roller 27 of the inking unit.
  • the pressing of the transfer roller 28 against the two adjacent rollers 26 and 33 provides here a single row of pressure rollers 17, the contact pressure of which can be changed in the direction C.
  • the pressure rollers 17 are pivotable about the axis of rotation of the transfer roller 28 by the angle 06, so that the pressure direction C changes depending on the size of the angle ⁇ . This allows you to set the speed of the transfer roller 28.
  • the transfer roller 28 is either more of the inking roller 33 rotating at the machine peripheral speed or of the ink fountain which is driven much more slowly roller 26 taken away.
  • the pivoting of the pressure roller 17 may only occur to such an extent that it is ensured that the resilient roller body 1 of the transfer roller 28 both against the jacket 29 of the ink fountain roller 26 and against the jacket surface 34 of the first inking roller 33 seamlessly over the entire length of the rollers is pressed.
  • the invention is not limited to the illustrated embodiments.
  • the transfer roller 28 is set in rotation not only by friction but also by its own drive. It is only important to ensure that the transfer roller, despite the separate drive due to its flexibility, can fit snugly against the shells of the adjacent rollers.
  • transfer rollers 28 of the type according to FIGS. 1 to 3 can also be used for the roller arrangements according to FIGS. 7 and 8.
  • the transfer roller 28 consists of at least two tubular, rigid roller cores which are connected to one another by an elastomeric jacket, or if the transfer roller 28 is formed from a single elastic jacket. A rigid core is unnecessary in the latter embodiment.

Landscapes

  • Inking, Control Or Cleaning Of Printing Machines (AREA)
EP80103057A 1979-07-26 1980-06-02 Dispositif d'alimentation en encre pour un systéme d'encrage à rouleaux dans les machines d'impression rotatives Withdrawn EP0023251A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2930303 1979-07-26
DE2930303A DE2930303C2 (de) 1979-07-26 1979-07-26 Filmfarbwerk für Rotationsdruckmaschinen

Publications (1)

Publication Number Publication Date
EP0023251A1 true EP0023251A1 (fr) 1981-02-04

Family

ID=6076820

Family Applications (1)

Application Number Title Priority Date Filing Date
EP80103057A Withdrawn EP0023251A1 (fr) 1979-07-26 1980-06-02 Dispositif d'alimentation en encre pour un systéme d'encrage à rouleaux dans les machines d'impression rotatives

Country Status (13)

Country Link
EP (1) EP0023251A1 (fr)
JP (1) JPS5625457A (fr)
AR (1) AR227394A1 (fr)
AU (1) AU5926680A (fr)
BR (1) BR8004688A (fr)
CA (1) CA1129248A (fr)
DE (1) DE2930303C2 (fr)
DK (1) DK284180A (fr)
ES (1) ES8104948A1 (fr)
IT (1) IT8053430V0 (fr)
MX (1) MX153040A (fr)
NO (1) NO802260L (fr)
ZA (1) ZA804339B (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0064270A1 (fr) * 1981-05-02 1982-11-10 Albert-Frankenthal AG Dispositif d'encrage
EP0065138A1 (fr) * 1981-05-19 1982-11-24 Albert-Frankenthal AG Dispositif d'encrage court pour une machine à imprimer
CN108909180A (zh) * 2018-06-28 2018-11-30 河南宝钢制罐有限公司 金属罐印刷机的油墨单元用传墨分割辊测试系统及方法

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58210613A (ja) * 1982-06-02 1983-12-07 Hitachi Ltd 熱処理炉用石英管
JPH02218118A (ja) * 1989-02-17 1990-08-30 Nec Corp 不純物拡散装置
DE10106528A1 (de) 2000-03-10 2001-09-13 Heidelberger Druckmasch Ag Walze für einen mit Walzen bestückten Walzenstuhl einer Rotationsdruckmaschine
JP2008126508A (ja) * 2006-11-20 2008-06-05 Mitsubishi Heavy Ind Ltd 印刷機のロール支持構造及び印刷機

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE277903C (fr) *
DE44857C (de) * F. MÜLLER in Potschappel b. Dresden Elastische Farbauftragewalze für Tapeten-Druckmaschinen
GB244581A (en) * 1924-12-11 1925-12-24 William Strachan Improvements in or relating to the construction of damping and inking rollers for printing machines
GB264678A (en) * 1926-02-22 1927-01-27 Max Kroenert Improvements in or relating to the color or ink transmitting or applying rollers of rotary printing machines
US2114378A (en) * 1936-11-30 1938-04-19 Oxford Varnish Corp Printing roll
GB544480A (en) * 1940-08-07 1942-04-15 American Bank Note Co Inking mechanisms for rotary steel plate printing machines
FR1021637A (fr) * 1950-07-07 1953-02-20 Stuart Murray Ltd Perfectionnement aux rouleaux destinés aux dispositifs encreurs des machines à imprimer
DE883288C (de) * 1941-09-27 1953-07-16 Carl Ejner Larsen Feuchtwerk fuer Offsetdruckmaschinen
FR1367497A (fr) * 1962-09-03 1964-07-24 Karlstad Mekaniska Ab Calandre perfectionnée pour papier
FR2214008A1 (fr) * 1973-01-17 1974-08-09 Ici Ltd
CH598009A5 (en) * 1976-12-16 1978-04-28 Jaeggi Jean Pierre Resilient moistener roll for rotary print machine

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE604179C (de) * 1934-10-16 Cie Francaise Du Caoutchouc Walze mit einem nachgiebigen Belag, insbesondere fuer Wollwaschmaschinen, Wringmaschinen und Druckmaschinen
DE563555C (de) * 1932-11-08 Fallert & Co Akt Ges Farbwerk, insbesondere fuer Hochdruckmaschinen
DE106921C (fr) * 1898-09-21 1899-12-14
DE543983C (de) * 1929-05-08 1932-02-12 Claybourn Process Corp Vorrichtung zum Zufuehren von Farbe, insbesondere von Bronzefarbe, an Druckmaschinen
DE607990C (de) * 1934-06-16 1935-01-12 Maschf Augsburg Nuernberg Ag Heberloses Farbwerk fuer Druckmaschinen
DE901057C (de) * 1950-04-14 1954-01-07 Koenig & Bauer Schnellpressfab Heberloses Farbwerk fuer Rotationsdruckmaschinen
DE1236528B (de) * 1960-07-12 1967-03-16 Miller Printing Machinery Co Feuchtwerk fuer Rotationsflachdruckmaschinen
US3475803A (en) * 1965-08-27 1969-11-04 Edward D Hill Roller for applying paint,ink and the like
DE1812047A1 (de) * 1968-11-30 1970-06-25 Karl Raes Farbwerk fuer Trockenoffsetmaschinen
DD105770A1 (fr) * 1973-09-27 1974-05-12
DE2659557A1 (de) * 1976-12-30 1978-07-06 Maschf Augsburg Nuernberg Ag Rotations-offsetdruckwerk
DE7804506U1 (de) * 1978-02-15 1978-06-01 Agellice Gmbh, 7407 Rottenburg Aus aneinandergereihten ringfoermigen abschnitten zusammengesetzte buerstenwalze

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE277903C (fr) *
DE44857C (de) * F. MÜLLER in Potschappel b. Dresden Elastische Farbauftragewalze für Tapeten-Druckmaschinen
GB244581A (en) * 1924-12-11 1925-12-24 William Strachan Improvements in or relating to the construction of damping and inking rollers for printing machines
GB264678A (en) * 1926-02-22 1927-01-27 Max Kroenert Improvements in or relating to the color or ink transmitting or applying rollers of rotary printing machines
US2114378A (en) * 1936-11-30 1938-04-19 Oxford Varnish Corp Printing roll
GB544480A (en) * 1940-08-07 1942-04-15 American Bank Note Co Inking mechanisms for rotary steel plate printing machines
DE883288C (de) * 1941-09-27 1953-07-16 Carl Ejner Larsen Feuchtwerk fuer Offsetdruckmaschinen
FR1021637A (fr) * 1950-07-07 1953-02-20 Stuart Murray Ltd Perfectionnement aux rouleaux destinés aux dispositifs encreurs des machines à imprimer
FR1367497A (fr) * 1962-09-03 1964-07-24 Karlstad Mekaniska Ab Calandre perfectionnée pour papier
FR2214008A1 (fr) * 1973-01-17 1974-08-09 Ici Ltd
CH598009A5 (en) * 1976-12-16 1978-04-28 Jaeggi Jean Pierre Resilient moistener roll for rotary print machine

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0064270A1 (fr) * 1981-05-02 1982-11-10 Albert-Frankenthal AG Dispositif d'encrage
EP0065138A1 (fr) * 1981-05-19 1982-11-24 Albert-Frankenthal AG Dispositif d'encrage court pour une machine à imprimer
CN108909180A (zh) * 2018-06-28 2018-11-30 河南宝钢制罐有限公司 金属罐印刷机的油墨单元用传墨分割辊测试系统及方法
CN108909180B (zh) * 2018-06-28 2023-10-17 河南宝钢制罐有限公司 金属罐印刷机的油墨单元用传墨分割辊测试系统及方法

Also Published As

Publication number Publication date
BR8004688A (pt) 1981-02-10
IT8053430V0 (it) 1980-07-25
NO802260L (no) 1981-01-27
DK284180A (da) 1981-01-27
CA1129248A (fr) 1982-08-10
AU5926680A (en) 1981-01-29
MX153040A (es) 1986-07-22
DE2930303A1 (de) 1981-02-12
AR227394A1 (es) 1982-10-29
JPS5625457A (en) 1981-03-11
ZA804339B (en) 1981-07-29
DE2930303C2 (de) 1982-12-30
ES493714A0 (es) 1981-05-16
JPS5747027B2 (fr) 1982-10-06
ES8104948A1 (es) 1981-05-16

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PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

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Inventor name: JESCHKE, WILLI

Inventor name: JUNGHANS, RUDI