CA2013256C - Printing machine inker or damper roller construction, particularly for short ink train inker systems - Google Patents
Printing machine inker or damper roller construction, particularly for short ink train inker systemsInfo
- Publication number
- CA2013256C CA2013256C CA002013256A CA2013256A CA2013256C CA 2013256 C CA2013256 C CA 2013256C CA 002013256 A CA002013256 A CA 002013256A CA 2013256 A CA2013256 A CA 2013256A CA 2013256 C CA2013256 C CA 2013256C
- Authority
- CA
- Canada
- Prior art keywords
- roller
- sleeve
- diameter
- construction
- opening
- 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.)
- Expired - Fee Related
Links
Classifications
-
- 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
Landscapes
- Inking, Control Or Cleaning Of Printing Machines (AREA)
- Rolls And Other Rotary Bodies (AREA)
Abstract
ABSTRACT OF THE DISCLOSURE.
To permit matching of the surface characteristics of an anilox roller (7) or of an ink application roller (6), or of rollers in a damper system (8), to printing requirements, the rollers are formed of a roller body over which a jacket or sleeve (34) is placed having the desired surface characteristics, for example a raster or screen pattern, cells or the like, for receiving and applying ink and/or damping fluid, respectively. The sleeve (34) is selectively replaceable and can be positioned over the roller. To permit such positioning without removing the roller from the printing machine, the printing machine is formed with an opening (31, 30) in one (1) of the side walls of sufficient size to permit passage of the sleeve therethrough, removal of a sleeve from the roller, and replacement by another sleeve on the roller.
An auxiliary support system (35-43) supports the roller, in cantilever position, when the bearing from the first side wall (1) is removed, the auxiliary support system, preferably, including an eccentric shaft with a V-groove formed centrally therein, which can be brought into and out of engagement with an extension of one of the stub shafts of the roller.
To permit matching of the surface characteristics of an anilox roller (7) or of an ink application roller (6), or of rollers in a damper system (8), to printing requirements, the rollers are formed of a roller body over which a jacket or sleeve (34) is placed having the desired surface characteristics, for example a raster or screen pattern, cells or the like, for receiving and applying ink and/or damping fluid, respectively. The sleeve (34) is selectively replaceable and can be positioned over the roller. To permit such positioning without removing the roller from the printing machine, the printing machine is formed with an opening (31, 30) in one (1) of the side walls of sufficient size to permit passage of the sleeve therethrough, removal of a sleeve from the roller, and replacement by another sleeve on the roller.
An auxiliary support system (35-43) supports the roller, in cantilever position, when the bearing from the first side wall (1) is removed, the auxiliary support system, preferably, including an eccentric shaft with a V-groove formed centrally therein, which can be brought into and out of engagement with an extension of one of the stub shafts of the roller.
Description
Z~:3~3;~
IELD OF T~E INY~NTION.
The present invention relates to a roller constructi~n~for inkers or dampers, in which the roller iR
held in po8~ion ~y stub 3h&ft~ in side ~all~ in the printing machine, or a fra~e thereof, ~nd more particularly to an.inker roller construction ~uitable for short ~n~ train ink2rs ln rotary offset and ~lexo printing ~achine~.
BACKGROU~D.
Sho~t ink trsin in~er systems, for example of ~he type described~in the referenced German Patent Disclosure Docu-ent DE-OS 37 04 433~ require ~requent exchnnge of the inker ' ~ ~
.
Z~3SZ~
rollers which, typlcally, are anilox rollerz. 2Y.change i8 necessary due to ~he differences in printed subject matter to be applied, and printed effects to be ohtained. The diversity of printed effects required also necessitates a wide range for the quantity of ink, and hence differences in the sl~e, number, and shape of the cells per unit surface, to provide different acceptance characteristics for ink on the anilox roller. Maintaining a large number of an~lox rollers of different surface characteristics and cons~r~ction is c06tly; interchange of the rollers as such is dificult in many machines due to the lack of space,or arrangement of rollers and cylinders in the machine which interferes with easy exchange of the rolle.rs. Even inker rollers which are coated with a plastic or rubber surface, or have a plastic or rubbar jacket, require frequent exchange, due to wear on the surface of the roller. Difficulties in exchange of the rollers again arise, which i~ even worse if the inker application rollers are of substantial diameter, for example of ~he diameter of forme cylinders.
THE INVENTION.
It ls an ob;ect to provide a construction for application of ink, and) if desired, of damping ~luid, for rotary printing machines, and particularly if the inker rol~ers are rollers with cells, or inker rol~ers havlng different cell cons~ruction or characteristics;
i the application ~ystem uses different ~ypes of rollers, then the inventio~ is directed to ensuring that the surface of the roller can be readily exchanged, without requiring disassembly of the entire roller from the inker and/or damper structure.
IELD OF T~E INY~NTION.
The present invention relates to a roller constructi~n~for inkers or dampers, in which the roller iR
held in po8~ion ~y stub 3h&ft~ in side ~all~ in the printing machine, or a fra~e thereof, ~nd more particularly to an.inker roller construction ~uitable for short ~n~ train ink2rs ln rotary offset and ~lexo printing ~achine~.
BACKGROU~D.
Sho~t ink trsin in~er systems, for example of ~he type described~in the referenced German Patent Disclosure Docu-ent DE-OS 37 04 433~ require ~requent exchnnge of the inker ' ~ ~
.
Z~3SZ~
rollers which, typlcally, are anilox rollerz. 2Y.change i8 necessary due to ~he differences in printed subject matter to be applied, and printed effects to be ohtained. The diversity of printed effects required also necessitates a wide range for the quantity of ink, and hence differences in the sl~e, number, and shape of the cells per unit surface, to provide different acceptance characteristics for ink on the anilox roller. Maintaining a large number of an~lox rollers of different surface characteristics and cons~r~ction is c06tly; interchange of the rollers as such is dificult in many machines due to the lack of space,or arrangement of rollers and cylinders in the machine which interferes with easy exchange of the rolle.rs. Even inker rollers which are coated with a plastic or rubber surface, or have a plastic or rubbar jacket, require frequent exchange, due to wear on the surface of the roller. Difficulties in exchange of the rollers again arise, which i~ even worse if the inker application rollers are of substantial diameter, for example of ~he diameter of forme cylinders.
THE INVENTION.
It ls an ob;ect to provide a construction for application of ink, and) if desired, of damping ~luid, for rotary printing machines, and particularly if the inker rol~ers are rollers with cells, or inker rol~ers havlng different cell cons~ruction or characteristics;
i the application ~ystem uses different ~ypes of rollers, then the inventio~ is directed to ensuring that the surface of the roller can be readily exchanged, without requiring disassembly of the entire roller from the inker and/or damper structure.
: .
' :~
.
, .
.: : . .
-: ~
Briefly, the roller i6 made of somewhat smallPr diameter than previously customary and i~ fltted with a selectively replaceable sleeve, which can be positioned over the roller, the sleeve having a predetermined selected surface configuration or characteri~tic. One of the side walls of the machine is formed with at least one opening having a diameter at least slightly larger than the diameter of the roller with the slee~e thereon or, respectively, sllghtly larger than the sleeve as such. The bearing for the stub shaft of the roller a~ that end is removable from the side ~all, to permit, after removal of the bearing, removal of the sleeve from the roller through the opening and placement therethrough of ano~her sleeve on the roller.
An auxiliary support system is provided, engageable with the roller to support and position the roller while being re~ained by only one remai~i~g bearlng in the side wall other than the one formed with the opening.
The system has the advantage that the surface whlch is ~ub~ect to ~ear or sub~ect to replacemen~ ~ ma~ch the surface characteristics to required printing ~obs can be easily e~changed without requiring interchange of the en~ire roller and removal thereo from the prin~ing machine, which may cause extensive service and cost~.
DRAWINGS:
Pig. 1 i8 a schematic representation of a printing machine utillzing short ink train inker~, shown ln disengaged position, that i8, removed from the associated inker roller~
in ~hich the inker rolle~ are anilox rolle~;
Fig. 2 is a greatly enlarged schematic representation, partly in ~ection, of a roller, and its positioning wi~hin the printing machine;
,. . ,. - -.
.- ' , ' .
.
~' ' ., .
.
, ;
`
' :~
.
, .
.: : . .
-: ~
Briefly, the roller i6 made of somewhat smallPr diameter than previously customary and i~ fltted with a selectively replaceable sleeve, which can be positioned over the roller, the sleeve having a predetermined selected surface configuration or characteri~tic. One of the side walls of the machine is formed with at least one opening having a diameter at least slightly larger than the diameter of the roller with the slee~e thereon or, respectively, sllghtly larger than the sleeve as such. The bearing for the stub shaft of the roller a~ that end is removable from the side ~all, to permit, after removal of the bearing, removal of the sleeve from the roller through the opening and placement therethrough of ano~her sleeve on the roller.
An auxiliary support system is provided, engageable with the roller to support and position the roller while being re~ained by only one remai~i~g bearlng in the side wall other than the one formed with the opening.
The system has the advantage that the surface whlch is ~ub~ect to ~ear or sub~ect to replacemen~ ~ ma~ch the surface characteristics to required printing ~obs can be easily e~changed without requiring interchange of the en~ire roller and removal thereo from the prin~ing machine, which may cause extensive service and cost~.
DRAWINGS:
Pig. 1 i8 a schematic representation of a printing machine utillzing short ink train inker~, shown ln disengaged position, that i8, removed from the associated inker roller~
in ~hich the inker rolle~ are anilox rolle~;
Fig. 2 is a greatly enlarged schematic representation, partly in ~ection, of a roller, and its positioning wi~hin the printing machine;
,. . ,. - -.
.- ' , ' .
.
~' ' ., .
.
, ;
`
3~
Fig. 3 is a fragmentary vle~ of an auxiliary holdlng arrangement for the roller of Fig. 2; and Fig. 4 is a sche~atic end vie~ of a portion of the side wall, showing access openings for a cover sleeve for the roller of the printing machine.
DETA~LED D~SCRIPTION.
The invantion will be descrlbed w~th reference to a short ink train inker system, which is suitable, for example,for a pr~nting m2chine with prin~ing unit~ 100, 2, 3, each ~ving a plate cylinder 5, a blanket cylinder 4, an ink application roller 6 and an anllox roller 7. Each one of the plate cylinders 5, addltionally, has a damper 8 associated therewlth. Each one of ~he anilox rollers 9 receives ink from a respective inker supply 9. The inker supplies 9 are chambered doctor blade systems, which include a chambered doctor blade unit 10 which can be engaged and disengaged from the associated anilox roller 7. In Fig. 1, the systems 9 are shown disengaged from the anilox roller.
The an~lox roller 7, fur~her, can be disengaged from surface contact with ~he ink;application roller 6.
Fig. 1 illustrates the ink application roller 6 to have the same diameter as the plate cylinder 5; it may be differently construct~d, however, for example to have the same diameter as the anilox roller 7; or the anilo~ roller 7 may have the diameter of the ink application roller 6 or that of the plate cylinder 5. The invention will be described wlth referenee to the anilox roller 7, is no~
limi~ed ~hereto, however, 8ince the invention may be used also in connection with the ink application roller or cylinder 6, or in connectlon with other types of ln:ker sy~tems;
or for application to damper rollers 8a, 8b of the dampers 8.
' ~ ' , ., ,. . .
.
.
. `-. ,' ~
13~
A web W is threaded between the blanket cyll~der~ 4, as shown schematically in Fig. 1.
The short ink traln inkers 9 include7 b~sides the chambered unit 10, an ink supply pump 17 which supplies ink through an ink supply hose 13. A holder 27 is provlded for an ink trough, shown only schematically; the holder 19 holds the chambered doctor 'blade unit 10 in position, and permits pivoting thereof in engagement with or removal from the associated anilox roller 7. The referenced applications describe sui~able arrangements.
A cross bar 29 retalns the sys~ems in position and provides a guideway to transmit rotary power to the ink pumps 17.
None of these elements form part of the present invention;
they are described only for completeness's sake.
In accordance with a feature of the inven~ion, the anilox roller 7 which, as noted, may have the same diameter as the in~ applicat~n roller 6,has a body~7' with'two axially laterally extending stub shafts 32, 33 (Fig. 2) which retain the anilox roller body 7'in the side walls 1, 1~ o the ~0 prin~ing mac~ine. In accordance ~ith a further feature of the inv~ntlon, one o the side walls, as s.hown the side walls 1, which may be ~exmed the "I wall", iB fo~med with an opening 31 located ~ least in the region of the inker 9. A ~urther openi~g with the same, or larger diameter may be provided, see Fig. 4, the further opening 30 being coaxi~l with or matching the diameter of the ink ~pplication roller 6. In any case, the openings 30, 31 must ha~e a diameter which i8 SO dimensioned that a sleeve 34, to be applied to the inker roller body' 7', in accordance with the invention, may be slid through the respective opening 30 or 31, that is, j~. ,,. , ,~ ~. . . .. . .
. .
.. .
., .
-' ~' Z~ 3Z~
must have a sllghtly larger diameter. If the invention is used wlth the anilox roller 7, sleeve 34 will have a surface profile or ~rface shape with cell~ or a screen pattern applied thereon, ln engraved form. In accordance with the respectlve printing job to be prln~ed, ~he anilox rcller body 7Ican be covered with a suitable sleeve 34, by sliding the sleeve 34 through the opening 31, the sleeve having the desired profile characteristic required of the anilox roller 7, so that the necessary ink can be supplied to the plate cylinder 5.
Before the surface sleeve 34 can be inserted through the opening 31 and fitted on the roller ~dy 7',the stub shaft 33 must be freed or released. A bearing, not shown in Fig. 2 and flttet in the side wall 1, normally placed in the openipg lS 31, must be removed from the side wall, see Fig. 2. The roller body 7~ n accordance with the lnvention, 1~ held in stable po31tion. The stub shaft 32, extending to~ards the left, in Fig. 2, from the roller body 7' is laterally extended and cooperates with an auxi~ry holding sy~tem ~ to 43.
The stub shaft 32 is retained in a bearing 32a fitted into the side wall ~'; the bearing 32a~may be identical to a bearing fitted in the openlng 31, and removed when the sleeve 34 is to be applled.
The auxiliary holding system 36-43 is secured in the drive gear box 35. When the bearing normally in opening 31 i8 removed, the then freed right end of the anilox roller ~ i8 maintained in the position shown in Fig. 1 so that the sleeve 34 can be fitted over the roller body from the right (Fig. 2). This is readily possible, for example by slightly expanding the sleeve 34 with conpre6sed air, and to clamp it ., . ' ~ : '~
`
', ' .
~ f~13~fi wlth other auxiliary clamplng elements on the ~oller 7.
To facilitate application of the sleeve 34, t may be for~ed with a slightly conical opening, or slightly conical, as a whole, to then, in use, fit tightly over the rolle~ body 7'.
The auxiliary holding system 36-43, e~sentially, includes an auxiliary shaft 36, extending approximately transve~csely to the stub shaft 32 and fitted ln the gear box 35, held at its two outer ends in ve~tical walls 35a, 35b (Fig. 3) of gear box 35. The auxiliary shaft 36 is formed with a conical recess 38, preferably located about centrally thereof, The stub shaft 32 is seated in the conlcal recess, see Figs. 2 and 3, ~o hold the anilox roller before the be~ring, not shown, aL the right side is removed from the opening 31 and thus from the stub shaft 33 to permit rPmQval from, or application of ~che sleeve 34 over the roller~body 7. The auxiliary shaft 36 is eccentrically retained in the side ~alls 35a~ 35b, as shown at 42. The stub shaft terminates in a polygonal end, for e~ample in a square end 43, 80 that it can be rotated by use of a suitable lever, wrench or the like. Upon eccentric shifting of the shaf~ 36, the shaf~ wlll engage and disengage from the stub shaft 32.
Rotating the shaft 36 permits vertical adJustment of the position~ of the roller 7 so that its desired position can be obtained. This desired po~ition can be indicated by a 2S positionable s~op 41.
The stub shaft 36 is formed w$th a thread at the left side therQof on which two posi~loning nuts 39, 40 are screwed, to provide for left-right shifting of the recess 38, and hence of ths stub ~haft 32 within the gear box 35, and bet~deen the walls 35a, 35b thereof. Conse~u~tltly, the . .
' ~ ~
~ , 3Z~
roller 7 can be adju6ted up-down by rotatlon of the eccentrically retained auxlliary shaft 36 and right-left by ad~ustment of the nuts 39, 40. Thla permits locating ~he roller 7 between the side walls 1, 1' ln a prede~erminea position, and holding the roller in that po~ition, to permit ready placement of the sleeve 34 through the associated opening 31. After the sleeve 34 i8 placed on the roller b~dy 7', the bearing, not shown, is seated on the shaft 33 of theassembled roller 7 and secured in the side wall 1 in any suitable ~anner, as well known. The square end 43 of the auxiliary shaft 36 is then rotated sufficie~tly to at l~ast sllghtly lift the roller 36 off the stub shaft 32 so that the roller 7 and the stub shaft 32 are freely rotatable. The roller 7 can be driven via a gear 37 from an external drive source which lS can be coupled to the main drive of the printlng machine.
The auxiliary holdIng arrangement, a~ illustrated, ie a preferred one; other arrangements ~y be used, the invention baing directed, primarily, to an lnker system ln which the inker roller i8 not a single unitary elsment but, rather, comprlses a roller body 7'on which a sleeve 34 with the desired surface configuration i8 applied, while the roller 7 is in position in the printing machine, to eliminate exchange of the entire roller 7, and disengagement from the drive source, if it ls only desired to change the su~face characteristic thereof. Thus, different arrangements may be used to hold the roller 7 in po~i~ion after one side is released in order to app~y the sleeve 34 thereon.
The basic principle may be used, of course, also with rollers ln the damping system~ which m~y be desirable for B~me a~plications. For example, rollers 8a, 8b may hsve surface .
.
s~
sleeves located thereon of particular desired characteristics for desired printing applications; in ~hat case, suitable openings in the side walls, ma~ching the pos~~dns of the rollers, can be formed and the roller~
supplied with sleeves, as described above.
The use of inker rollers with replaceable surface sleeves, such as sleeve 34, shown in broken lines in Pig. 2, permits interchange of the surface, for example after the sleeve is somewhat worn, and after the sleeve which may be of plastic or rubber, or some other material, should be inter-changed to provide a new, or a different surface, e.g. grid or profile characteristic for cells which transfer ink. It is not necessary to exchange the entire roller which in many machines is difficult to carry out due to ~he relative inaccessibility of inkers in the printing machines.
Various changes and modifications may be made within the scope o~ the inventive concept.
Fig. 3 is a fragmentary vle~ of an auxiliary holdlng arrangement for the roller of Fig. 2; and Fig. 4 is a sche~atic end vie~ of a portion of the side wall, showing access openings for a cover sleeve for the roller of the printing machine.
DETA~LED D~SCRIPTION.
The invantion will be descrlbed w~th reference to a short ink train inker system, which is suitable, for example,for a pr~nting m2chine with prin~ing unit~ 100, 2, 3, each ~ving a plate cylinder 5, a blanket cylinder 4, an ink application roller 6 and an anllox roller 7. Each one of the plate cylinders 5, addltionally, has a damper 8 associated therewlth. Each one of ~he anilox rollers 9 receives ink from a respective inker supply 9. The inker supplies 9 are chambered doctor blade systems, which include a chambered doctor blade unit 10 which can be engaged and disengaged from the associated anilox roller 7. In Fig. 1, the systems 9 are shown disengaged from the anilox roller.
The an~lox roller 7, fur~her, can be disengaged from surface contact with ~he ink;application roller 6.
Fig. 1 illustrates the ink application roller 6 to have the same diameter as the plate cylinder 5; it may be differently construct~d, however, for example to have the same diameter as the anilox roller 7; or the anilo~ roller 7 may have the diameter of the ink application roller 6 or that of the plate cylinder 5. The invention will be described wlth referenee to the anilox roller 7, is no~
limi~ed ~hereto, however, 8ince the invention may be used also in connection with the ink application roller or cylinder 6, or in connectlon with other types of ln:ker sy~tems;
or for application to damper rollers 8a, 8b of the dampers 8.
' ~ ' , ., ,. . .
.
.
. `-. ,' ~
13~
A web W is threaded between the blanket cyll~der~ 4, as shown schematically in Fig. 1.
The short ink traln inkers 9 include7 b~sides the chambered unit 10, an ink supply pump 17 which supplies ink through an ink supply hose 13. A holder 27 is provlded for an ink trough, shown only schematically; the holder 19 holds the chambered doctor 'blade unit 10 in position, and permits pivoting thereof in engagement with or removal from the associated anilox roller 7. The referenced applications describe sui~able arrangements.
A cross bar 29 retalns the sys~ems in position and provides a guideway to transmit rotary power to the ink pumps 17.
None of these elements form part of the present invention;
they are described only for completeness's sake.
In accordance with a feature of the inven~ion, the anilox roller 7 which, as noted, may have the same diameter as the in~ applicat~n roller 6,has a body~7' with'two axially laterally extending stub shafts 32, 33 (Fig. 2) which retain the anilox roller body 7'in the side walls 1, 1~ o the ~0 prin~ing mac~ine. In accordance ~ith a further feature of the inv~ntlon, one o the side walls, as s.hown the side walls 1, which may be ~exmed the "I wall", iB fo~med with an opening 31 located ~ least in the region of the inker 9. A ~urther openi~g with the same, or larger diameter may be provided, see Fig. 4, the further opening 30 being coaxi~l with or matching the diameter of the ink ~pplication roller 6. In any case, the openings 30, 31 must ha~e a diameter which i8 SO dimensioned that a sleeve 34, to be applied to the inker roller body' 7', in accordance with the invention, may be slid through the respective opening 30 or 31, that is, j~. ,,. , ,~ ~. . . .. . .
. .
.. .
., .
-' ~' Z~ 3Z~
must have a sllghtly larger diameter. If the invention is used wlth the anilox roller 7, sleeve 34 will have a surface profile or ~rface shape with cell~ or a screen pattern applied thereon, ln engraved form. In accordance with the respectlve printing job to be prln~ed, ~he anilox rcller body 7Ican be covered with a suitable sleeve 34, by sliding the sleeve 34 through the opening 31, the sleeve having the desired profile characteristic required of the anilox roller 7, so that the necessary ink can be supplied to the plate cylinder 5.
Before the surface sleeve 34 can be inserted through the opening 31 and fitted on the roller ~dy 7',the stub shaft 33 must be freed or released. A bearing, not shown in Fig. 2 and flttet in the side wall 1, normally placed in the openipg lS 31, must be removed from the side wall, see Fig. 2. The roller body 7~ n accordance with the lnvention, 1~ held in stable po31tion. The stub shaft 32, extending to~ards the left, in Fig. 2, from the roller body 7' is laterally extended and cooperates with an auxi~ry holding sy~tem ~ to 43.
The stub shaft 32 is retained in a bearing 32a fitted into the side wall ~'; the bearing 32a~may be identical to a bearing fitted in the openlng 31, and removed when the sleeve 34 is to be applled.
The auxiliary holding system 36-43 is secured in the drive gear box 35. When the bearing normally in opening 31 i8 removed, the then freed right end of the anilox roller ~ i8 maintained in the position shown in Fig. 1 so that the sleeve 34 can be fitted over the roller body from the right (Fig. 2). This is readily possible, for example by slightly expanding the sleeve 34 with conpre6sed air, and to clamp it ., . ' ~ : '~
`
', ' .
~ f~13~fi wlth other auxiliary clamplng elements on the ~oller 7.
To facilitate application of the sleeve 34, t may be for~ed with a slightly conical opening, or slightly conical, as a whole, to then, in use, fit tightly over the rolle~ body 7'.
The auxiliary holding system 36-43, e~sentially, includes an auxiliary shaft 36, extending approximately transve~csely to the stub shaft 32 and fitted ln the gear box 35, held at its two outer ends in ve~tical walls 35a, 35b (Fig. 3) of gear box 35. The auxiliary shaft 36 is formed with a conical recess 38, preferably located about centrally thereof, The stub shaft 32 is seated in the conlcal recess, see Figs. 2 and 3, ~o hold the anilox roller before the be~ring, not shown, aL the right side is removed from the opening 31 and thus from the stub shaft 33 to permit rPmQval from, or application of ~che sleeve 34 over the roller~body 7. The auxiliary shaft 36 is eccentrically retained in the side ~alls 35a~ 35b, as shown at 42. The stub shaft terminates in a polygonal end, for e~ample in a square end 43, 80 that it can be rotated by use of a suitable lever, wrench or the like. Upon eccentric shifting of the shaf~ 36, the shaf~ wlll engage and disengage from the stub shaft 32.
Rotating the shaft 36 permits vertical adJustment of the position~ of the roller 7 so that its desired position can be obtained. This desired po~ition can be indicated by a 2S positionable s~op 41.
The stub shaft 36 is formed w$th a thread at the left side therQof on which two posi~loning nuts 39, 40 are screwed, to provide for left-right shifting of the recess 38, and hence of ths stub ~haft 32 within the gear box 35, and bet~deen the walls 35a, 35b thereof. Conse~u~tltly, the . .
' ~ ~
~ , 3Z~
roller 7 can be adju6ted up-down by rotatlon of the eccentrically retained auxlliary shaft 36 and right-left by ad~ustment of the nuts 39, 40. Thla permits locating ~he roller 7 between the side walls 1, 1' ln a prede~erminea position, and holding the roller in that po~ition, to permit ready placement of the sleeve 34 through the associated opening 31. After the sleeve 34 i8 placed on the roller b~dy 7', the bearing, not shown, is seated on the shaft 33 of theassembled roller 7 and secured in the side wall 1 in any suitable ~anner, as well known. The square end 43 of the auxiliary shaft 36 is then rotated sufficie~tly to at l~ast sllghtly lift the roller 36 off the stub shaft 32 so that the roller 7 and the stub shaft 32 are freely rotatable. The roller 7 can be driven via a gear 37 from an external drive source which lS can be coupled to the main drive of the printlng machine.
The auxiliary holdIng arrangement, a~ illustrated, ie a preferred one; other arrangements ~y be used, the invention baing directed, primarily, to an lnker system ln which the inker roller i8 not a single unitary elsment but, rather, comprlses a roller body 7'on which a sleeve 34 with the desired surface configuration i8 applied, while the roller 7 is in position in the printing machine, to eliminate exchange of the entire roller 7, and disengagement from the drive source, if it ls only desired to change the su~face characteristic thereof. Thus, different arrangements may be used to hold the roller 7 in po~i~ion after one side is released in order to app~y the sleeve 34 thereon.
The basic principle may be used, of course, also with rollers ln the damping system~ which m~y be desirable for B~me a~plications. For example, rollers 8a, 8b may hsve surface .
.
s~
sleeves located thereon of particular desired characteristics for desired printing applications; in ~hat case, suitable openings in the side walls, ma~ching the pos~~dns of the rollers, can be formed and the roller~
supplied with sleeves, as described above.
The use of inker rollers with replaceable surface sleeves, such as sleeve 34, shown in broken lines in Pig. 2, permits interchange of the surface, for example after the sleeve is somewhat worn, and after the sleeve which may be of plastic or rubber, or some other material, should be inter-changed to provide a new, or a different surface, e.g. grid or profile characteristic for cells which transfer ink. It is not necessary to exchange the entire roller which in many machines is difficult to carry out due to ~he relative inaccessibility of inkers in the printing machines.
Various changes and modifications may be made within the scope o~ the inventive concept.
Claims (11)
1. In a printing machine having first and second side walls (1, 1'), an inker roller (7) construction particularly for short ink train inker systems for rotary offset or flexo printing machines, comprising, in accordance with the invention, an inker roller body (7') having two laterally extending stub shafts (32, 33), bearing means (32a) in said side walls to journal said stub shafts, one of which bearing means is removable;
a selectively replaceable sleeve (34) positionable over said roller body (7'), said sleeve having a predetermined selected surface configuration or characteristic;
the first (1) of said side walls being formed with at least one opening (31, 30) which has a diameter at least slightly larger than the diameter of said sleeve (34) to permit, after removal of the bearing means from the side wall formed with said at least one opening, removal of the sleeve (34) from the roller body through said opening and placement, through said opening, of another sleeve (34) on the roller body; and an auxiliary support system (35-43) engageable with said roller (7) for supporting and positioning said roller in position while being retained by only one bearing means (32a) in the second side wall (1') upon removal of the bearing means from the first side wall (1) formed with the at least one opening.
a selectively replaceable sleeve (34) positionable over said roller body (7'), said sleeve having a predetermined selected surface configuration or characteristic;
the first (1) of said side walls being formed with at least one opening (31, 30) which has a diameter at least slightly larger than the diameter of said sleeve (34) to permit, after removal of the bearing means from the side wall formed with said at least one opening, removal of the sleeve (34) from the roller body through said opening and placement, through said opening, of another sleeve (34) on the roller body; and an auxiliary support system (35-43) engageable with said roller (7) for supporting and positioning said roller in position while being retained by only one bearing means (32a) in the second side wall (1') upon removal of the bearing means from the first side wall (1) formed with the at least one opening.
2. The construction of claim 1, wherein the roller (7), when supplied with said sleeve (34),forms an anilox roller;
and wherein the surface characteristic or configuration of said sleeve defines a grid or cell pattern, and is formed solely on said sleeve.
and wherein the surface characteristic or configuration of said sleeve defines a grid or cell pattern, and is formed solely on said sleeve.
3. The construction of claim 1, wherein said roller (6), when supplied with said sleeve (34), forms an ink application roller.
4. The construction of claim 1, wherein said printing machine has a plate or printing image carrying cylinder (5); and wherein the diameter of said roller (6, 7) corresponds to the diameter of said image carrying cylinder (5).
5. The construction of claim 47 further including an ink application roller (6) in engagement with said roller (7) and said image carrying cylinder (5);
and wherein the diameter of said ink application roller (6) corresponds generally to the diameter of said image carrying cylinder (5).
and wherein the diameter of said ink application roller (6) corresponds generally to the diameter of said image carrying cylinder (5).
6. The construction of claim 1, wherein one (32) of said stub shafts extends through said second side wall (1');
and wherein said auxiliary support system (35-43) comprises an auxiliary shaft (36) extending transversely to said stub shaft (32), said auxiliary shaft (36) being formed with a recess (38) located at least approximately centrally thereof, and into which said stub shaft (32) is fitted;
said auxiliary shaft (36) being eccentrically (42) retained, whereby, upon rotation of said auxiliary stub shaft, the up-down position of said roller (6, 7) can be adjusted;
stop means (41) are provided for presetting the up-down position of said roller (6, 7);
at least one retaining wall (35a) is provided, retaining said auxiliary shaft;
and axially adjustable positioning means (39, 40) are located on said shaft engageable with said retaining wall for locating the axial position of said recess (38) and for adjusting the left-right position of said roller (6, 7) when the stub shaft (32) of the roller is in engagement with said recess.
and wherein said auxiliary support system (35-43) comprises an auxiliary shaft (36) extending transversely to said stub shaft (32), said auxiliary shaft (36) being formed with a recess (38) located at least approximately centrally thereof, and into which said stub shaft (32) is fitted;
said auxiliary shaft (36) being eccentrically (42) retained, whereby, upon rotation of said auxiliary stub shaft, the up-down position of said roller (6, 7) can be adjusted;
stop means (41) are provided for presetting the up-down position of said roller (6, 7);
at least one retaining wall (35a) is provided, retaining said auxiliary shaft;
and axially adjustable positioning means (39, 40) are located on said shaft engageable with said retaining wall for locating the axial position of said recess (38) and for adjusting the left-right position of said roller (6, 7) when the stub shaft (32) of the roller is in engagement with said recess.
7. In a printing machine having first and second side walls (1, 1');
an accessory roller construction for at least one of:
an inker roller (6, 7); a damper roller (8a, 8b), comprising, in accordance with the invention, a roller body having two laterally extending stub shafts (32, 33), bearing means (32a) in said side walls to journal said stub shafts, one of which bearing means is removable;
a selectively replaceable sleeve (34) positionable over said roller body, said sleeve having a predetermined selected surface configuration or characteristic;
the first (1) of said side walls being formed with at least one opening (31, 30) which has a diameter at least slightly larger than the diameter of said sleeve (34) to permit, after removal of the bearing means from the side wall formed with said at least one opening, removal of the sleeve (34) from the roller body through said opening and placement, through said opening, of another sleeve (34) on the roller body; and an auxiliary support system (35-43) engageable with said roller for supporting and positioning said roller in position while being retained by only one bearing means (32a) in the second side wall (1') upon removal of the bearing means from the first side wall (1) formed with the at least one opening,
an accessory roller construction for at least one of:
an inker roller (6, 7); a damper roller (8a, 8b), comprising, in accordance with the invention, a roller body having two laterally extending stub shafts (32, 33), bearing means (32a) in said side walls to journal said stub shafts, one of which bearing means is removable;
a selectively replaceable sleeve (34) positionable over said roller body, said sleeve having a predetermined selected surface configuration or characteristic;
the first (1) of said side walls being formed with at least one opening (31, 30) which has a diameter at least slightly larger than the diameter of said sleeve (34) to permit, after removal of the bearing means from the side wall formed with said at least one opening, removal of the sleeve (34) from the roller body through said opening and placement, through said opening, of another sleeve (34) on the roller body; and an auxiliary support system (35-43) engageable with said roller for supporting and positioning said roller in position while being retained by only one bearing means (32a) in the second side wall (1') upon removal of the bearing means from the first side wall (1) formed with the at least one opening,
8. The construction of claim 7, wherein said roller comprises a damper roller (8a, 8b).
9. The construction of claim 7, wherein said printing machine has a plate or printing image carrying cylinder (5); and wherein the diameter of said roller (6, 7) corresponds to the diameter of said image carrying cylinder (5).
10. The construction of claim 9, further including an ink application roller (6) in engagement with said roller (7) and said image carrying cylinder (5);
and wherein the diameter of said ink application roller (6) corresponds generally to the diameter of said image carrying cylinder (5).
and wherein the diameter of said ink application roller (6) corresponds generally to the diameter of said image carrying cylinder (5).
11. The construction of claim 7, wherein one (32) of said stub shafts extends through said second side wall (1');
and wherein the auxiliary support system (35-43) comprises an auxiliary shaft (36) extending transversely to said stub shaft (32), said auxiliary shaft (36) being formed with a recess (38) located at least approximately centrally thereof, and into which said stub shaft (32) is fitted.
and wherein the auxiliary support system (35-43) comprises an auxiliary shaft (36) extending transversely to said stub shaft (32), said auxiliary shaft (36) being formed with a recess (38) located at least approximately centrally thereof, and into which said stub shaft (32) is fitted.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEP3912961.6 | 1989-04-20 | ||
| DE3912961 | 1989-04-20 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2013256A1 CA2013256A1 (en) | 1990-10-20 |
| CA2013256C true CA2013256C (en) | 1994-12-20 |
Family
ID=6379047
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002013256A Expired - Fee Related CA2013256C (en) | 1989-04-20 | 1990-03-28 | Printing machine inker or damper roller construction, particularly for short ink train inker systems |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP0393561B1 (en) |
| JP (1) | JPH02295746A (en) |
| CA (1) | CA2013256C (en) |
| DE (1) | DE59007023D1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10012189A1 (en) * | 2000-03-13 | 2001-09-20 | Heidelberger Druckmasch Ag | Printing mechanism for printing press has ink application roll in flying position at side wall and rubbercloth shell axially movable on this roll |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3705477C1 (en) * | 1987-02-20 | 1988-05-26 | Roland Man Druckmasch | Holding device for applying a sleeve to a cylinder |
-
1990
- 1990-03-28 CA CA002013256A patent/CA2013256C/en not_active Expired - Fee Related
- 1990-04-14 EP EP90107206A patent/EP0393561B1/en not_active Revoked
- 1990-04-14 DE DE59007023T patent/DE59007023D1/en not_active Revoked
- 1990-04-18 JP JP2100551A patent/JPH02295746A/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| CA2013256A1 (en) | 1990-10-20 |
| JPH02295746A (en) | 1990-12-06 |
| EP0393561B1 (en) | 1994-09-07 |
| EP0393561A2 (en) | 1990-10-24 |
| DE59007023D1 (en) | 1994-10-13 |
| EP0393561A3 (en) | 1991-04-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4397237A (en) | Roller train structure for use with printing machine | |
| KR100508015B1 (en) | Intaglio printing machine | |
| CA2552634C (en) | Inking system for intaglio printing machine | |
| US4421027A (en) | Multiple printing mode printing machine system | |
| US7614343B2 (en) | Methods for the compensation of a transverse elongation and/or longitudinal elongation of a printing material and printing press with several printing couples generating at least one printed image on a printing material | |
| KR20120106867A (en) | Intaglio printing press with mobile carriage supporting ink-collecting cylinder | |
| CA2025472A1 (en) | Chambered doctor blade inker system | |
| EP0955161A3 (en) | Multi-colour flexographic rotary machine with main drum and independent separate colour units | |
| DE59504949D1 (en) | Device for exchanging printing forms on rotary printing machines | |
| GB2292543A (en) | Multi-colour web-fed rotary printing machine | |
| ATE244140T1 (en) | MULTI-COLOR ROTOGRAPH PRINTING MACHINE | |
| US6886461B2 (en) | Short inking system for a rotary printing machine | |
| JP2002086670A (en) | Multi-color printer with common blanket cylinder | |
| GB2267462A (en) | Sheet-fed rotary offset printing press with removable auxiliary printing or further processing unit | |
| CA2013256C (en) | Printing machine inker or damper roller construction, particularly for short ink train inker systems | |
| US4587897A (en) | Rotary offset printing machine | |
| US5016529A (en) | Sheet-fed rotary printing press for multi-color printing | |
| EP0884175A2 (en) | Flexographic printing apparatus for application to offset printing units | |
| EP0275025B1 (en) | Inking device for printing apparatus | |
| CA1066130A (en) | Ink ductor system | |
| EP1149699B1 (en) | Inking apparatus for printing press | |
| US20010037741A1 (en) | Print unit in a printing press | |
| EP0761433A1 (en) | Tapered bearing housing sleeves | |
| US5388511A (en) | Rotary press | |
| SU1359159A1 (en) | Inking unit for rotary printing presses |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKLA | Lapsed |