CA2005045A1 - Apparatus and method for decorating cans - Google Patents
Apparatus and method for decorating cansInfo
- Publication number
- CA2005045A1 CA2005045A1 CA 2005045 CA2005045A CA2005045A1 CA 2005045 A1 CA2005045 A1 CA 2005045A1 CA 2005045 CA2005045 CA 2005045 CA 2005045 A CA2005045 A CA 2005045A CA 2005045 A1 CA2005045 A1 CA 2005045A1
- Authority
- CA
- Canada
- Prior art keywords
- roll
- ductor
- rotating
- fountain
- distributor
- 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.)
- Abandoned
Links
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
Landscapes
- Inking, Control Or Cleaning Of Printing Machines (AREA)
Abstract
ABSTRACT OF THE DISCLOSURE
A ductor roll assembly for use in transferring wet ink from a rotating fountain roll to a rotating distributor roll within a wet ink transfer system for a can decorating apparatus having a main drive system wherein the ductor roll assembly comprises at least one ductor roll but preferably comprises a plurality of ductor roll but each of which is movably mounted on a fixed support frame for movement into a contacting relationship with either the fountain roll or the distributor roll to transfer the wet ink. Individual variable control units are provided for each of the ductor rolls to move a desired number of them into the contacting relationship with the rotating fountain roll or the distrib-utor roll for any desired period of time so as to control the quantity and location of wet ink transferred from the fountain roll to the distributor roll by the desired number of the ductor rolls and wherein the control of the movement of each ductor roll is independent and separate from the main drive system.
A ductor roll assembly for use in transferring wet ink from a rotating fountain roll to a rotating distributor roll within a wet ink transfer system for a can decorating apparatus having a main drive system wherein the ductor roll assembly comprises at least one ductor roll but preferably comprises a plurality of ductor roll but each of which is movably mounted on a fixed support frame for movement into a contacting relationship with either the fountain roll or the distributor roll to transfer the wet ink. Individual variable control units are provided for each of the ductor rolls to move a desired number of them into the contacting relationship with the rotating fountain roll or the distrib-utor roll for any desired period of time so as to control the quantity and location of wet ink transferred from the fountain roll to the distributor roll by the desired number of the ductor rolls and wherein the control of the movement of each ductor roll is independent and separate from the main drive system.
Description
20~50q~
APPARATUS AND METHOD FOR ~ECORATING CANS
Field of the Invention This invention relates generally to can decorating ~-05 apparatus of the type u~ed to print wet ink imagQs on the outer surface of a one-plece aluminum or steel can body ~ ;
member of a two-piece can assembly and more particularly to '`
the ductor roll which is used to transfer ink from a fountain roll to a distributor roll.
1 0 " , ,, ~
Backaround o~ the Inventio~ , A can decorating apparatus ls described and illustrated in U.S. Patent No. 4,741,266 to Stirbis et al., the dls~
closure of whlch is incorporated herein by reference. As ~, ~5 lllustrRted in Fig. 1 of the Stirbis et al. patent, there are a plurality of circumferentlally spaced ink transfQr ~ ;
roll and fountain stations for supplying WQt ink to separate individual blanket segment means through an equal number of `
plate cylinder mean~ at six separate inklng stations during ~
20 rotatlon of the bianket means. At each of ths lnklng ~-stations, a ductor roll i~ used to transfer ink from a fountain roll to a distributor roll. The ductor roll in the Stirbis et al. patent is pivotally mounted and is spring urged against a rotating cam whlch cam is driven by the 25 central drive means operating the can decorating apparatus. ~ ;
50'~5 ~ !
As the cam rotates, it moves the ductor roll into contact with the fountain roll or the distributor roll. Thus, the amount of time that the ductor roll is in contact wlth `
either the fountain roll or the distributor roll depends on 05 the operating speed of the can decorating apparatus. This amount of time can be varied by use of ad~ustable cams but creates down time for the can decorating apparatus and are -of limited use.
Brief Descrlption of the Invention This invention provides actuating means for moving at lea~t one ductor roll into or out of contact with a fountaln roll or a distributor roll that i~ indèpendent and separate from the maln driving system of a can decorating apparatus.
15 In a preferred embodiment of the lnvention, each lnking statlon of a can decoratlng apparatus is provided wlth a support frame which 18 part of the maln support structure for the can decoratlng apparatus. A fountaln roll having a generally cylindrical outer perlpheral surface iB mounted for rotatlon on the support frame 50 that a portlon thereof moves through a supply of ln~ contalned in a pan supported on the support frame. The fountain roll rotates about a generally horl~ontal axis and is drlven by conventional drlve means as illustrated ln the Stirbis et al. patent.
2S conventlonal doctor blad~ means are provided for removing excess ink from the generally cylindrical outer peripheral surface of the fountain roll. A distributor roll having a generally cylindrical outer peripheral surface is also mounted for rotation on the support frame. The distrlbutor roll rotates about an axis that is sub~tantially parallel to æo~s~)~s the axis of rotation of the fountaln roll and is located so that the peripheral outer surfaces Oe the fountain roll and distributor roll are spaced apart. The distributor roll is ~, , rotated by the conventional drive means described above. At 05 least one ductor roll having a generally cylindrical outer peripheral surface 1B mounted for rotation about an axi~
that is substantlally parallel with the axes of rotation of the fountain roll and the distributor roll. Pivot means are ~' provided for pivotally mounting the at least one ductor roll to move its generally cylindrical outer peripheral surface into a contacting relationship with the generally cylindrical -outer peripheral surface of either the fountain roll or the distributor roll to transfer at least a portion of the wet ink from the fountain roll to the di~trlbutor roll. Actuating means are provided for moving the pivot means to move the at least one ductor roll into either of the contactlng relation-shlps. Variable control means are provided for controlllng the movement oP the actuatlng mean~ BO as to maintaln the contactlng relationship of the at least one ductor roll wlth elther of the fountaln roll or the dlstrlbutor roll for any deslred amount of tlme to control the quantlty of wet lnk transferred from the fountain roll to the distributor roll.
The variable control means are independent and separate from the maln drivlng means. In the preferred embodiment of the -invention, the at lsast one ductor roll comprises five pivotally mounted and individually controlled ductor rolls ~ ~ `
having a combined axial extent of their generalIy cylindrical outer peripheral surfaces which iB BubBtantially equal to the axial extent of the generally cylindrical outer peripheral ,. Z~S~
surface of either the fountain roll or the distributor roll which have substantially the same axial extent.
~rief DescriPtion of the Drawinqs 05 An illustrative and presently preferred embodiment of the invention is shown in the accompanying drawings in which:
Fig. l is a can decorating apparatus of the Stirbis et al. patent;
Fig. 2 i9 a top plan view of the can decorating apparatus of Fig. l;
Fig. 3 is a perspective view of a schematic illustration of the preferred embodiment of this invention:
Fig~ 4 ls a side elevational view of Fig. 3~ and Fig. 5 is a schematic lllustration of valve means for this invention.
Detailed Description of the Invention In general, Fig. 1 show~ a decorator apparatus comprislng a mandrel wheel means 30 for receivlng undecoratad can body members 32 from an lnfeed means 34. Can body member 32 are supported on a plurality of equally alrcumferential spaced mandrel means 36 for movement with the mandrel wheel means past a blanket wheel means 38 which carries a plurality of circumferentially spaced blanket ~egment mean~ 40 having ink and inked imagPs thereon. Each blanket segment means 40 engages the cylindrical outer peripheral surface of a can body member 32 to apply variable color ink and ink images thereon in the .Eorm of a label including a brand name, 30 printed matter, decorative images, etc. ~n overvarnish `
;' ~: . ~"'.
~, ~, .,: ,,.;,,:
~5~5 , ;-.
means 41 may be provided to apply an overvarnish coating ~ ;~
material to the lnked can members. Decorated can body ;
members 42 are carried to a transfer wheel means 44 and ;
transferred from the mandrels 36 to carrying devices 46 such 05 as suction cup support members. Decorated can members are carried on transfer wheel means 44 to a pin-chaln means 47 driven by a sprocket wheel means 48 and having pin members 49, which receive the decorated can members from the transfer wheel means 44. An electric motor-type drive means 50 is connected by suitable transmi6sion apparatu~ to provide a maln drlve ~ystem to sach of the driven device~. Fig. 2 including belt means 51, gear box means 52, belt means 53, a main ~haft 54, gear box means 55 for driving the mandrel wheel and the transfer wheel, belt drlven gear box means 55A
for driving the overvarnish means 41, shaft and coupling ~eans 56, belt and pulley means 56A, gear box mQans 57 for drlvlng tha blanket wheel and as~ociatsd plate cylinders 70, shaft and coupling means 58, gear box means 59 and belt-pulley means 60 for driving the inker ~tation roll systems, all of which are synchronously driven for the lntended purposes. A main base frame means 61 and vertical ~upport devices 61A, 61B, etc. ~upport the aforedescribed apparatus in a conventional manner. The blanket wheel means 38 and ink station apparatus are supported by a vertically extending 25 rigld plate frame means 62 as shown in Fig. 1 and are - ~ ;
located in a housing means comprising a rear plate means 62A
and side panels 62B. A plurality of circumferentlally-spaced lnk transfer roll and fountain means 63, 64, 65, 66, 67, 68 are mounted on frame plate means 62 for supplying ink to the separate indlvldual blankat segment means 40 through 2~5(~4'~
an equal number of plate cylinder means 70 at six separate lnking stations during rotation of the blanket wheel means 38.
The ink fountaln and transfer r,iystem of this invention 05 is illustrated in Figs. 3 and 4. ~ support frame 102 is fixedly mounted on the rlgid plate frame meane 6~. A shaft 104 ls mounted on the ~upport frame 102 for rotation in bearing means 106 mounted on the ~upport frame 102 and ls rotated by the belt-pulley means 60 by sultable connectlng means (not shown). An engravad fountaln roll 108 is secured to the shaft 104 for rotation therewith and has a generally cylindrlcal outer peripheral surface 110 which passes through a wet inX supply 112 contained in a pan 114 as the fountain roll 108 is rotated. The fountain roll 108 rotates ln the dir~ction indicated by the arrow 116 and conventlonal doctor blade means 118 are provided for removlng exces~ wet ink from the generally cylindrical outer perlpheral ~urface 110. The fountain roll 108 rotates about an axis 120 that `
lies generally ln a horizontal plane.
~ distributor roll 130, Fig. 4, having a generally cylindrical outer peripheral surface 132 is secured to a shaft 134 for rotation therewith which shaft 134 1~ rotatably . ...................................................................... ... ... :, ,: .~
mounted on conventional support means ~not shown) mounted on ~ `
; ' :1 . ~ . .
the rigid plate frame means 62 and rotated by the belt pulley means 60. The distrlbutor roll 130 rotates about an axl~ 136 that is substantially parallel with the axis of :~
: .... ::~:
rotation 120 and rotates to have a surface speed of about twenty times that of the fountain roll. The distributor ; , ,~
roll 130 is mounted so that the generally cylindrical outer peripheral ~urface 132 thereof is spaced from the generally ` "';~ :' ~" "' ;:: ~:: .: ~:, 6 , `
'~ .' ,' `,',`''~'' 5~4LS ~ :
cylindrical outer peripheral surface 110 of the fountain roll 108.
The wet ink transferring ~y~tem of this invention for transferring wet ink from the fountain roll 108 to the 05 distributor roll 130 is illustrated in Figs. 3 and 4 and comprises flve movably mounted ductor rolls 140. Although five movably mounted ductor rolls 140 are illustrated and described herein, it is understood that the wet ink trans~
ferring sy~tem may comprise at least one ductor roll 140 or i~ ;
10 any number of a plurality of ductor roll~ 140 other than the -five ductor roll~ 140. Each ductor roll 140 is mounted on its own shaft 142 80 a~ to be freely rotatable relative thereto and which shaft 142 ls secured in one end portlon 144 of a rotatable lever arm 146. A shaft 148 having ~;
reduced end portion~ 150 is fixedly mountPd on the support frame 102 by locating the reduced end portions 150 in mounting blocks 152 which are secured to the support frame 102 by headed threaded bolts 154. Each lever arm 146 is rotatably mounted on a shaft 148 for rotation relative thereto about an axis 156 that is ~ubstantially parallel to the axes of rotation 120 and 136. The other end portion 158 - : -of the lever arm 146 is rotatably mountsd on a pin 160 which ls fixedly secured ln a bifurcated end portlon 162 of a plston rod 164, each of which functlons as actuating means to move a lever arm 146. Each piston rod 164 is mounted for linear sliding movement on a piston 165 which iB Blidably " . :.
mounted in an air cylinder 166 which has a lower support member 168 whlch 18 rotatably mounted on a pln 170 which i5 fixedly secured ln a bifurcated portlon 172 of a mountlng ~ ~;
block 174. Each mountlng block 174 i~ fixedly secured to the support frame 102 by headed threaded bolts 176. Each ductor roll 140 ls mounted for rotatlon about an axis 178 that i5 ~ubstantially parallel with the axes of rotation 120, 136 and 156. Each ductor roll 140 has a generally S cylindrical outer peripheral surface 180 which is moved by a piston rod 164 into a contacting relatlonship with either the generally aylindrical outer perI]pheral surface 110 or 132 of the fountain roll 108 or the dlstributor roll 130 or not in contact with either. AB lllustrated in Fig. 4, the movement of each ductor roll 140 is through a very small di~tance such as between about 1/16 and 3/16 of an inch.
Variable control means 186 are provlded for controlling the movement of each piston rod 164 so as to maintain the contacting relationship of each ductor roll 140 with the `~
fountain roll 108 or the distributor roll 130 for any amount of time to control the quantlty of wet lnk transferred from the fountain roll lOR to the dlstrlbutor roll 130. The variable control means 186 have a plurality of control knobs ;~
188 each of whlch functions through an air cylinder 166 to ;~
20 control the movement of a plston rod 164. A plurallty of ~, movable valve means 190, Fig. 5, are mounted in the varlable ~;
control means 186 and each valve means 190 has an lnlet tube 192 that 19 connected by means ~not shown) to a maln lnlet ::::: :"~
tube 194, Fig. 3, which supplies air under pressure from a pressurlzed air source (not shown). Each valve means 190 has a solenold actuated valve 196 that directs a flow of ~-~
pressurized air lnto either a flexlble tube 198 extending ~`
between a valve means 190 in the variable control means 186 ~ ~;
and the bottom 200 of each air cylinder 166 to move the ~;
piston rod 164 in an outward direction or a flexible tube 8 ;~
:: 2~)~S()~5 202 extendlng between a valve means l9o in the variable control means 186 and the top 204 of each air cyllnder 166 to move the piston rod 164 in an inward direation. The solenoid actuated valve 196 is normally in a position 05 whereat the ductor roll 140 is in contact with the distribu-tor roll 130. Each of the control knobs 188 i8 multi-purpose :
signal generating unit which sends appropriate signals through electronlc conducting cables 206 to a micro-processor :
(not shown~ to control the movement of the ductor rolls 140 in response to a program controlling the operation of the can decorating apparatus illustrated in Fig. 1. The variable control means 186 permit operation of the ductor roll 140 independent and separate from the electric motor type drive means 50. It is understood that other types of control ; . .
means may be used lnstead of the illustrated variable control means and the air cylindere so long as they are designed to move and hold the ductor rolls ln contact with the fountaln roll and distributor roll for the desired ;~
sequence of opsrations.
The operation of the wet ink transferring system of thi~ invention i9 explained ln relatlon to Fig. 3 whereln : -each of the duotor rolls 140 have been identified by one of the letters A through E. The number of ductor rolls 140 used to transfer wet ink from a fountain roll 108 to a distributor roll 130 at each of the inX transfer and fountain means 63, 64, 65, 66, 67 and 68 may be varied as desired.
For example, at ink station 63, the variable control means 186 may be programmed to move ductor rolls A, B and E at desired intervals into contact with the fountain roll 108 for a period of time and then bacX into contact with the ., . . . , . ~ , , ,,, ., ~:
,: ', j ,, ' ,' ,,, . '. ', ' ' . . - ' ' . ' . " ', ' . , " ' ' ' . :' .,, ', ' ': ' : ' . ` ' ~ ' ` ' '' ~ ' ~ i' ' . :. ' ' æo~35~5 distributor roll 130 for a period of time to transfer the desired amount of the wet inX, whila at ink station 64, the variable control means 186 may be programmed to move duator rolls ~, D and E at desired intervals into contact with 05 fountain roll 108 for a period of time and then back into .
contact with the distributor roll 130 for a period of time :
to transfer the deslred amount of wet ink. Thus, each of the ink ~tations 63 - 68 may be procJrammed to use as many of the ductor rolls A - E as desired to transfer wat ink from 10 the fountain roll loa to the dlstributor roll 130. The :
amount of wet ink transferred depends on how many times a :;~
ductor roll 140 i8 moved into contact wlth the fountain roll 108 and how long such contact iB maintalned.
While an lllustrative and presently preferred embodiment f the invention has been described in detail herain, it i~
to be understood that the inventive concepts may be otherwise variously embodied and employed and that the appended claim6 are intended to be construed to inalude 6uch variations -: ,: :,:~.
except insofar as limited by the prior art. .:~:
~ `~ ;'' 1 0 ' ' ~ ' ':` '~ '~ ' ~ ,'~"'''`,',''""'''
APPARATUS AND METHOD FOR ~ECORATING CANS
Field of the Invention This invention relates generally to can decorating ~-05 apparatus of the type u~ed to print wet ink imagQs on the outer surface of a one-plece aluminum or steel can body ~ ;
member of a two-piece can assembly and more particularly to '`
the ductor roll which is used to transfer ink from a fountain roll to a distributor roll.
1 0 " , ,, ~
Backaround o~ the Inventio~ , A can decorating apparatus ls described and illustrated in U.S. Patent No. 4,741,266 to Stirbis et al., the dls~
closure of whlch is incorporated herein by reference. As ~, ~5 lllustrRted in Fig. 1 of the Stirbis et al. patent, there are a plurality of circumferentlally spaced ink transfQr ~ ;
roll and fountain stations for supplying WQt ink to separate individual blanket segment means through an equal number of `
plate cylinder mean~ at six separate inklng stations during ~
20 rotatlon of the bianket means. At each of ths lnklng ~-stations, a ductor roll i~ used to transfer ink from a fountain roll to a distributor roll. The ductor roll in the Stirbis et al. patent is pivotally mounted and is spring urged against a rotating cam whlch cam is driven by the 25 central drive means operating the can decorating apparatus. ~ ;
50'~5 ~ !
As the cam rotates, it moves the ductor roll into contact with the fountain roll or the distributor roll. Thus, the amount of time that the ductor roll is in contact wlth `
either the fountain roll or the distributor roll depends on 05 the operating speed of the can decorating apparatus. This amount of time can be varied by use of ad~ustable cams but creates down time for the can decorating apparatus and are -of limited use.
Brief Descrlption of the Invention This invention provides actuating means for moving at lea~t one ductor roll into or out of contact with a fountaln roll or a distributor roll that i~ indèpendent and separate from the maln driving system of a can decorating apparatus.
15 In a preferred embodiment of the lnvention, each lnking statlon of a can decoratlng apparatus is provided wlth a support frame which 18 part of the maln support structure for the can decoratlng apparatus. A fountaln roll having a generally cylindrical outer perlpheral surface iB mounted for rotatlon on the support frame 50 that a portlon thereof moves through a supply of ln~ contalned in a pan supported on the support frame. The fountain roll rotates about a generally horl~ontal axis and is drlven by conventional drlve means as illustrated ln the Stirbis et al. patent.
2S conventlonal doctor blad~ means are provided for removing excess ink from the generally cylindrical outer peripheral surface of the fountain roll. A distributor roll having a generally cylindrical outer peripheral surface is also mounted for rotation on the support frame. The distrlbutor roll rotates about an axis that is sub~tantially parallel to æo~s~)~s the axis of rotation of the fountaln roll and is located so that the peripheral outer surfaces Oe the fountain roll and distributor roll are spaced apart. The distributor roll is ~, , rotated by the conventional drive means described above. At 05 least one ductor roll having a generally cylindrical outer peripheral surface 1B mounted for rotation about an axi~
that is substantlally parallel with the axes of rotation of the fountain roll and the distributor roll. Pivot means are ~' provided for pivotally mounting the at least one ductor roll to move its generally cylindrical outer peripheral surface into a contacting relationship with the generally cylindrical -outer peripheral surface of either the fountain roll or the distributor roll to transfer at least a portion of the wet ink from the fountain roll to the di~trlbutor roll. Actuating means are provided for moving the pivot means to move the at least one ductor roll into either of the contactlng relation-shlps. Variable control means are provided for controlllng the movement oP the actuatlng mean~ BO as to maintaln the contactlng relationship of the at least one ductor roll wlth elther of the fountaln roll or the dlstrlbutor roll for any deslred amount of tlme to control the quantlty of wet lnk transferred from the fountain roll to the distributor roll.
The variable control means are independent and separate from the maln drivlng means. In the preferred embodiment of the -invention, the at lsast one ductor roll comprises five pivotally mounted and individually controlled ductor rolls ~ ~ `
having a combined axial extent of their generalIy cylindrical outer peripheral surfaces which iB BubBtantially equal to the axial extent of the generally cylindrical outer peripheral ,. Z~S~
surface of either the fountain roll or the distributor roll which have substantially the same axial extent.
~rief DescriPtion of the Drawinqs 05 An illustrative and presently preferred embodiment of the invention is shown in the accompanying drawings in which:
Fig. l is a can decorating apparatus of the Stirbis et al. patent;
Fig. 2 i9 a top plan view of the can decorating apparatus of Fig. l;
Fig. 3 is a perspective view of a schematic illustration of the preferred embodiment of this invention:
Fig~ 4 ls a side elevational view of Fig. 3~ and Fig. 5 is a schematic lllustration of valve means for this invention.
Detailed Description of the Invention In general, Fig. 1 show~ a decorator apparatus comprislng a mandrel wheel means 30 for receivlng undecoratad can body members 32 from an lnfeed means 34. Can body member 32 are supported on a plurality of equally alrcumferential spaced mandrel means 36 for movement with the mandrel wheel means past a blanket wheel means 38 which carries a plurality of circumferentially spaced blanket ~egment mean~ 40 having ink and inked imagPs thereon. Each blanket segment means 40 engages the cylindrical outer peripheral surface of a can body member 32 to apply variable color ink and ink images thereon in the .Eorm of a label including a brand name, 30 printed matter, decorative images, etc. ~n overvarnish `
;' ~: . ~"'.
~, ~, .,: ,,.;,,:
~5~5 , ;-.
means 41 may be provided to apply an overvarnish coating ~ ;~
material to the lnked can members. Decorated can body ;
members 42 are carried to a transfer wheel means 44 and ;
transferred from the mandrels 36 to carrying devices 46 such 05 as suction cup support members. Decorated can members are carried on transfer wheel means 44 to a pin-chaln means 47 driven by a sprocket wheel means 48 and having pin members 49, which receive the decorated can members from the transfer wheel means 44. An electric motor-type drive means 50 is connected by suitable transmi6sion apparatu~ to provide a maln drlve ~ystem to sach of the driven device~. Fig. 2 including belt means 51, gear box means 52, belt means 53, a main ~haft 54, gear box means 55 for driving the mandrel wheel and the transfer wheel, belt drlven gear box means 55A
for driving the overvarnish means 41, shaft and coupling ~eans 56, belt and pulley means 56A, gear box mQans 57 for drlvlng tha blanket wheel and as~ociatsd plate cylinders 70, shaft and coupling means 58, gear box means 59 and belt-pulley means 60 for driving the inker ~tation roll systems, all of which are synchronously driven for the lntended purposes. A main base frame means 61 and vertical ~upport devices 61A, 61B, etc. ~upport the aforedescribed apparatus in a conventional manner. The blanket wheel means 38 and ink station apparatus are supported by a vertically extending 25 rigld plate frame means 62 as shown in Fig. 1 and are - ~ ;
located in a housing means comprising a rear plate means 62A
and side panels 62B. A plurality of circumferentlally-spaced lnk transfer roll and fountain means 63, 64, 65, 66, 67, 68 are mounted on frame plate means 62 for supplying ink to the separate indlvldual blankat segment means 40 through 2~5(~4'~
an equal number of plate cylinder means 70 at six separate lnking stations during rotation of the blanket wheel means 38.
The ink fountaln and transfer r,iystem of this invention 05 is illustrated in Figs. 3 and 4. ~ support frame 102 is fixedly mounted on the rlgid plate frame meane 6~. A shaft 104 ls mounted on the ~upport frame 102 for rotation in bearing means 106 mounted on the ~upport frame 102 and ls rotated by the belt-pulley means 60 by sultable connectlng means (not shown). An engravad fountaln roll 108 is secured to the shaft 104 for rotation therewith and has a generally cylindrlcal outer peripheral surface 110 which passes through a wet inX supply 112 contained in a pan 114 as the fountain roll 108 is rotated. The fountain roll 108 rotates ln the dir~ction indicated by the arrow 116 and conventlonal doctor blade means 118 are provided for removlng exces~ wet ink from the generally cylindrical outer perlpheral ~urface 110. The fountain roll 108 rotates about an axis 120 that `
lies generally ln a horizontal plane.
~ distributor roll 130, Fig. 4, having a generally cylindrical outer peripheral surface 132 is secured to a shaft 134 for rotation therewith which shaft 134 1~ rotatably . ...................................................................... ... ... :, ,: .~
mounted on conventional support means ~not shown) mounted on ~ `
; ' :1 . ~ . .
the rigid plate frame means 62 and rotated by the belt pulley means 60. The distrlbutor roll 130 rotates about an axl~ 136 that is substantially parallel with the axis of :~
: .... ::~:
rotation 120 and rotates to have a surface speed of about twenty times that of the fountain roll. The distributor ; , ,~
roll 130 is mounted so that the generally cylindrical outer peripheral ~urface 132 thereof is spaced from the generally ` "';~ :' ~" "' ;:: ~:: .: ~:, 6 , `
'~ .' ,' `,',`''~'' 5~4LS ~ :
cylindrical outer peripheral surface 110 of the fountain roll 108.
The wet ink transferring ~y~tem of this invention for transferring wet ink from the fountain roll 108 to the 05 distributor roll 130 is illustrated in Figs. 3 and 4 and comprises flve movably mounted ductor rolls 140. Although five movably mounted ductor rolls 140 are illustrated and described herein, it is understood that the wet ink trans~
ferring sy~tem may comprise at least one ductor roll 140 or i~ ;
10 any number of a plurality of ductor roll~ 140 other than the -five ductor roll~ 140. Each ductor roll 140 is mounted on its own shaft 142 80 a~ to be freely rotatable relative thereto and which shaft 142 ls secured in one end portlon 144 of a rotatable lever arm 146. A shaft 148 having ~;
reduced end portion~ 150 is fixedly mountPd on the support frame 102 by locating the reduced end portions 150 in mounting blocks 152 which are secured to the support frame 102 by headed threaded bolts 154. Each lever arm 146 is rotatably mounted on a shaft 148 for rotation relative thereto about an axis 156 that is ~ubstantially parallel to the axes of rotation 120 and 136. The other end portion 158 - : -of the lever arm 146 is rotatably mountsd on a pin 160 which ls fixedly secured ln a bifurcated end portlon 162 of a plston rod 164, each of which functlons as actuating means to move a lever arm 146. Each piston rod 164 is mounted for linear sliding movement on a piston 165 which iB Blidably " . :.
mounted in an air cylinder 166 which has a lower support member 168 whlch 18 rotatably mounted on a pln 170 which i5 fixedly secured ln a bifurcated portlon 172 of a mountlng ~ ~;
block 174. Each mountlng block 174 i~ fixedly secured to the support frame 102 by headed threaded bolts 176. Each ductor roll 140 ls mounted for rotatlon about an axis 178 that i5 ~ubstantially parallel with the axes of rotation 120, 136 and 156. Each ductor roll 140 has a generally S cylindrical outer peripheral surface 180 which is moved by a piston rod 164 into a contacting relatlonship with either the generally aylindrical outer perI]pheral surface 110 or 132 of the fountain roll 108 or the dlstributor roll 130 or not in contact with either. AB lllustrated in Fig. 4, the movement of each ductor roll 140 is through a very small di~tance such as between about 1/16 and 3/16 of an inch.
Variable control means 186 are provlded for controlling the movement of each piston rod 164 so as to maintain the contacting relationship of each ductor roll 140 with the `~
fountain roll 108 or the distributor roll 130 for any amount of time to control the quantlty of wet lnk transferred from the fountain roll lOR to the dlstrlbutor roll 130. The variable control means 186 have a plurality of control knobs ;~
188 each of whlch functions through an air cylinder 166 to ;~
20 control the movement of a plston rod 164. A plurallty of ~, movable valve means 190, Fig. 5, are mounted in the varlable ~;
control means 186 and each valve means 190 has an lnlet tube 192 that 19 connected by means ~not shown) to a maln lnlet ::::: :"~
tube 194, Fig. 3, which supplies air under pressure from a pressurlzed air source (not shown). Each valve means 190 has a solenold actuated valve 196 that directs a flow of ~-~
pressurized air lnto either a flexlble tube 198 extending ~`
between a valve means 190 in the variable control means 186 ~ ~;
and the bottom 200 of each air cylinder 166 to move the ~;
piston rod 164 in an outward direction or a flexible tube 8 ;~
:: 2~)~S()~5 202 extendlng between a valve means l9o in the variable control means 186 and the top 204 of each air cyllnder 166 to move the piston rod 164 in an inward direation. The solenoid actuated valve 196 is normally in a position 05 whereat the ductor roll 140 is in contact with the distribu-tor roll 130. Each of the control knobs 188 i8 multi-purpose :
signal generating unit which sends appropriate signals through electronlc conducting cables 206 to a micro-processor :
(not shown~ to control the movement of the ductor rolls 140 in response to a program controlling the operation of the can decorating apparatus illustrated in Fig. 1. The variable control means 186 permit operation of the ductor roll 140 independent and separate from the electric motor type drive means 50. It is understood that other types of control ; . .
means may be used lnstead of the illustrated variable control means and the air cylindere so long as they are designed to move and hold the ductor rolls ln contact with the fountaln roll and distributor roll for the desired ;~
sequence of opsrations.
The operation of the wet ink transferring system of thi~ invention i9 explained ln relatlon to Fig. 3 whereln : -each of the duotor rolls 140 have been identified by one of the letters A through E. The number of ductor rolls 140 used to transfer wet ink from a fountain roll 108 to a distributor roll 130 at each of the inX transfer and fountain means 63, 64, 65, 66, 67 and 68 may be varied as desired.
For example, at ink station 63, the variable control means 186 may be programmed to move ductor rolls A, B and E at desired intervals into contact with the fountain roll 108 for a period of time and then bacX into contact with the ., . . . , . ~ , , ,,, ., ~:
,: ', j ,, ' ,' ,,, . '. ', ' ' . . - ' ' . ' . " ', ' . , " ' ' ' . :' .,, ', ' ': ' : ' . ` ' ~ ' ` ' '' ~ ' ~ i' ' . :. ' ' æo~35~5 distributor roll 130 for a period of time to transfer the desired amount of the wet inX, whila at ink station 64, the variable control means 186 may be programmed to move duator rolls ~, D and E at desired intervals into contact with 05 fountain roll 108 for a period of time and then back into .
contact with the distributor roll 130 for a period of time :
to transfer the deslred amount of wet ink. Thus, each of the ink ~tations 63 - 68 may be procJrammed to use as many of the ductor rolls A - E as desired to transfer wat ink from 10 the fountain roll loa to the dlstributor roll 130. The :
amount of wet ink transferred depends on how many times a :;~
ductor roll 140 i8 moved into contact wlth the fountain roll 108 and how long such contact iB maintalned.
While an lllustrative and presently preferred embodiment f the invention has been described in detail herain, it i~
to be understood that the inventive concepts may be otherwise variously embodied and employed and that the appended claim6 are intended to be construed to inalude 6uch variations -: ,: :,:~.
except insofar as limited by the prior art. .:~:
~ `~ ;'' 1 0 ' ' ~ ' ':` '~ '~ ' ~ ,'~"'''`,',''""'''
Claims (20)
1. A ductor roll assembly for use in transferring wet ink from a rotating fountain roll to a rotating distributor roll within a wet ink transfer system for a can decorating apparatus having a main driving system comprising:
a support frame mounted at a fixed location;
a fountain roll having a generally cylindrical outer peripheral surface mounted for rotation on said support frame about a generally horizontal axis;
a distributor roll having a generally cylindrical outer peripheral surface mounted for rotation on said support frame about an axis substantially parallel to said axis of rotation of said fountain roll;
said fountain roll and said distributor roll being located to that said generally cylindrical outer peripheral surfaces thereof are spaced apart;
main driving means for rotating said fountain roll and said distributor roll;
inking means for providing a coating of wet ink on said generally cylindrical outer peripheral surface of said fountain roll;
at least one ductor roll having a generally cylindrical outer peripheral surface and mounted for rotation about an axis substantially parallel to said axes of rotation of said fountain roll and said dis-tributor roll;
movable means for mounting said at least one ductor roll for movement of its generally cylindrical outer peripheral surface into contact with said gener-ally cylindrical outer peripheral surface of said rotating fountain roll or said rotating distributor roll to transfer at least a portion of said wet ink from said fountain roll to said distributor roll;
actuating means for moving said movable means to move said at least one ductor roll into either of said contacting relationships;
variable control means for controlling said actuating means so as to maintain said contacting relationship of said ductor roll with said rotating fountain roll or said rotating distributor roll for any ]desired amount of time to control the quantity of wet ink transferred from said fountain roll to said dis-tributor roll; and said variable control means being independent and separate from said main driving system.
a support frame mounted at a fixed location;
a fountain roll having a generally cylindrical outer peripheral surface mounted for rotation on said support frame about a generally horizontal axis;
a distributor roll having a generally cylindrical outer peripheral surface mounted for rotation on said support frame about an axis substantially parallel to said axis of rotation of said fountain roll;
said fountain roll and said distributor roll being located to that said generally cylindrical outer peripheral surfaces thereof are spaced apart;
main driving means for rotating said fountain roll and said distributor roll;
inking means for providing a coating of wet ink on said generally cylindrical outer peripheral surface of said fountain roll;
at least one ductor roll having a generally cylindrical outer peripheral surface and mounted for rotation about an axis substantially parallel to said axes of rotation of said fountain roll and said dis-tributor roll;
movable means for mounting said at least one ductor roll for movement of its generally cylindrical outer peripheral surface into contact with said gener-ally cylindrical outer peripheral surface of said rotating fountain roll or said rotating distributor roll to transfer at least a portion of said wet ink from said fountain roll to said distributor roll;
actuating means for moving said movable means to move said at least one ductor roll into either of said contacting relationships;
variable control means for controlling said actuating means so as to maintain said contacting relationship of said ductor roll with said rotating fountain roll or said rotating distributor roll for any ]desired amount of time to control the quantity of wet ink transferred from said fountain roll to said dis-tributor roll; and said variable control means being independent and separate from said main driving system.
2. The invention as in claim 1 wherein:
said at least one ductor roll has an axial length which is substantially the same as the axial length of said rotating fountain roll and said rotating distributor roll.
said at least one ductor roll has an axial length which is substantially the same as the axial length of said rotating fountain roll and said rotating distributor roll.
3. The invention as in claim 1 wherein said movable means comprises:
a shaft fixedly mounted on said support frame;
at least one lever arm rotatably mounted on said shaft;
said at least one ductor roll rotatably mounted on said at least one lever arm at a location spaced from one end thereof: and at least a portion of said actuating means con-nected to the other end of said lever arm for applying a force thereto.
a shaft fixedly mounted on said support frame;
at least one lever arm rotatably mounted on said shaft;
said at least one ductor roll rotatably mounted on said at least one lever arm at a location spaced from one end thereof: and at least a portion of said actuating means con-nected to the other end of said lever arm for applying a force thereto.
4. The invention as in claim 3 wherein said actuating means comprises:
a cylinder and a piston slidably mounted therein;
and a piston rod mounted on said piston for movement therewith.
a cylinder and a piston slidably mounted therein;
and a piston rod mounted on said piston for movement therewith.
5. The invention as in claim 4 wherein:
said cylinder being pivotally mounted on said support frame: and said piston rod being pivotally mounted on said other end of said lever arm.
said cylinder being pivotally mounted on said support frame: and said piston rod being pivotally mounted on said other end of said lever arm.
6. The invention as in claim 5 wherein:
said variable control means moving said piston in said cylinder.
said variable control means moving said piston in said cylinder.
7. The invention as in claim 3 wherein said actuating means comprises:
an air cylinder pivotally mounted at one end thereof to said support frame and pivotally mounted at the other end thereof to said other end of said lever arm.
an air cylinder pivotally mounted at one end thereof to said support frame and pivotally mounted at the other end thereof to said other end of said lever arm.
8. The invention as in claim 7 wherein said variable control means comprises:
a source of pressurized air;
conduit means for connecting said source to the top or bottom of said air cylinder;
valve means in said variable control means for opening or closing said conduit means; and valve control means for moving said valve means to an opened or closed position.
a source of pressurized air;
conduit means for connecting said source to the top or bottom of said air cylinder;
valve means in said variable control means for opening or closing said conduit means; and valve control means for moving said valve means to an opened or closed position.
9. A ductor roll assembly as in claim 1 wherein said at least one ductor roll comprises:
a plurality of ductor rolls, each having a gener-ally cylindrical outer peripheral surface;
movable means for mounting, each of said ductor rolls for movement of its generally cylindrical outer peripheral surface into contact With said generally cylindrical outer peripheral surface of said rotating fountain roll or said rotating distributor roll to transfer at least a portion of said wet ink from said fountain roll to said distributor roll;
actuating means for moving said movable means of each of said ductor rolls into said contacting relation-ship with either said rotating fountain roll or said rotating distributor roll;
variable control means for controlling said actuating means for each of said ductor rolls to as to maintain said contacting relationship of each of said ductor rolls with either said rotating fountain roll or said rotating distributor roll for any desired amount of time to control the quantity and location of wet ink transferred from said fountain roll to said distributor roll; and said variable control means being independent and separate from aid main driving system.
a plurality of ductor rolls, each having a gener-ally cylindrical outer peripheral surface;
movable means for mounting, each of said ductor rolls for movement of its generally cylindrical outer peripheral surface into contact With said generally cylindrical outer peripheral surface of said rotating fountain roll or said rotating distributor roll to transfer at least a portion of said wet ink from said fountain roll to said distributor roll;
actuating means for moving said movable means of each of said ductor rolls into said contacting relation-ship with either said rotating fountain roll or said rotating distributor roll;
variable control means for controlling said actuating means for each of said ductor rolls to as to maintain said contacting relationship of each of said ductor rolls with either said rotating fountain roll or said rotating distributor roll for any desired amount of time to control the quantity and location of wet ink transferred from said fountain roll to said distributor roll; and said variable control means being independent and separate from aid main driving system.
10. The invention as in claim 9 wherein:
each of said ductor rolls has an axial length which is substantially less than the axial length of said rotating fountain roll or said rotating distributor roll.
each of said ductor rolls has an axial length which is substantially less than the axial length of said rotating fountain roll or said rotating distributor roll.
11. The invention as in claim 9 wherein each of said movable means comprises:
at least one shaft fixedly mounted on said support frame;
a plurality of lever arms rotatably mounted on said at least one shaft;
each of said ductor rolls rotatably mounted on one of said lever arms at a location spaced from one end thereof; and at least a portion of said actuating means con-nected to the other end of each of said lever arms.
at least one shaft fixedly mounted on said support frame;
a plurality of lever arms rotatably mounted on said at least one shaft;
each of said ductor rolls rotatably mounted on one of said lever arms at a location spaced from one end thereof; and at least a portion of said actuating means con-nected to the other end of each of said lever arms.
12. The invention as in claim 11 wherein each of said actuating means comprises:
a cylinder and a piston slidably mounted therein;
and a piston rod mounted on said piston for movement therewith.
a cylinder and a piston slidably mounted therein;
and a piston rod mounted on said piston for movement therewith.
13. The invention as in claim 12 wherein:
said cylinder being pivotally mounted on said support frame; and said piston rod being pivotally mounted on said other end of said lever arm.
said cylinder being pivotally mounted on said support frame; and said piston rod being pivotally mounted on said other end of said lever arm.
14. The invention as in claim 13 wherein:
said variable control means connected to each of said actuating means for moving said piston in said cylinder.
said variable control means connected to each of said actuating means for moving said piston in said cylinder.
15. The invention as in claim 11 wherein each of said actuating means comprises:
an air cylinder pivotally mounted at one end thereof to said support frame and pivotally mounted at the other end thereof to said other end of said lever arm.
an air cylinder pivotally mounted at one end thereof to said support frame and pivotally mounted at the other end thereof to said other end of said lever arm.
16. The invention as in claim 15 wherein each of said variable control means comprises:
a source of pressurized air;
a plurality of conduit means for connecting said source to the top or bottom of each of said air cylin-ders;
a plurality of valve means in each of said variable control means for opening or closing each of said conduit means; and valve control means for moving each of said valve means to an opened or closed position.
a source of pressurized air;
a plurality of conduit means for connecting said source to the top or bottom of each of said air cylin-ders;
a plurality of valve means in each of said variable control means for opening or closing each of said conduit means; and valve control means for moving each of said valve means to an opened or closed position.
17. Method for use in transferring wet ink from a rotating fountain roll mounted at a fixed location to a rotating distributor roll mounted at a fixed location spaced from the rotating fountain roll using a ductor roll assembly within a wet ink transfer system for a can decorating apparatus having a main drive system comprising:
mounting at least one ductor roll on a fixed support frame for movement into contact with said rotating fountain roll or said rotating distributor roll;
controlling the movement of said at least one ductor roll so as to maintain said at least one ductor roll in contact with said fountain roll or said dis-tributor roll for any desired amount of time during the decorating operation so as to control the quantity of wet ink transferred from said fountain roll to said distributor roll; and controlling said movement of said at least one ductor roll independently and separately from said main drive system.
mounting at least one ductor roll on a fixed support frame for movement into contact with said rotating fountain roll or said rotating distributor roll;
controlling the movement of said at least one ductor roll so as to maintain said at least one ductor roll in contact with said fountain roll or said dis-tributor roll for any desired amount of time during the decorating operation so as to control the quantity of wet ink transferred from said fountain roll to said distributor roll; and controlling said movement of said at least one ductor roll independently and separately from said main drive system.
18. The invention as in claim 17 and further comprising:
using a double acting air cylinder to control said movement of said at least one ductor roll.
using a double acting air cylinder to control said movement of said at least one ductor roll.
19. Method for use in transferring wet ink from a rotating fountain roll mounted at a fixed location to a rotating distributor roll mounted at a fixed location spaced from the rotating fountain roll using a ductor roll assembly within a wet ink transfer system for a can decorating apparatus having a main drive system comprising:
mounting a plurality of ductor rolls on a fixed support frame for individual movement into contact with said rotating fountain roll or said rotating distributor roll;
controlling the movement of each of said plurality of ductor rolls so as to maintain each of said plurality of ductor rolls in contact with said fountain roll or said distributor roll for any desired amount of time during the decorating operation so as to control the quantity and location of wet ink transferred from an associated portion of said fountain roll to an associated portion of said distributor roll; and controlling said movement of each of said ductor rolls independently and separately from said main drive system.
mounting a plurality of ductor rolls on a fixed support frame for individual movement into contact with said rotating fountain roll or said rotating distributor roll;
controlling the movement of each of said plurality of ductor rolls so as to maintain each of said plurality of ductor rolls in contact with said fountain roll or said distributor roll for any desired amount of time during the decorating operation so as to control the quantity and location of wet ink transferred from an associated portion of said fountain roll to an associated portion of said distributor roll; and controlling said movement of each of said ductor rolls independently and separately from said main drive system.
20. The invention as in claim 19 and further com-prising:
using a plurality of double acting air cylinders to control said movement of each of said plurality of ductor rolls.
using a plurality of double acting air cylinders to control said movement of each of said plurality of ductor rolls.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US34889889A | 1989-05-08 | 1989-05-08 | |
| US348,898 | 1989-05-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2005045A1 true CA2005045A1 (en) | 1990-11-08 |
Family
ID=23370039
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 2005045 Abandoned CA2005045A1 (en) | 1989-05-08 | 1989-12-11 | Apparatus and method for decorating cans |
Country Status (2)
| Country | Link |
|---|---|
| CA (1) | CA2005045A1 (en) |
| WO (1) | WO1990013427A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4428403C2 (en) * | 1994-08-11 | 1996-07-11 | Roland Man Druckmasch | Lift drive of a printing machine |
| DE4436102C2 (en) * | 1994-10-10 | 2000-01-05 | Heidelberger Druckmasch Ag | Device for the controlled transfer of printing ink |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2942007A1 (en) * | 1979-10-17 | 1981-04-30 | M.A.N.- Roland Druckmaschinen AG, 6050 Offenbach | INK FOR AN OFFSET ROTARY PRINTING MACHINE |
| FR2516863B1 (en) * | 1981-11-25 | 1985-11-15 | Marinoni | METHOD AND DEVICE FOR TRANSFERRING INK BETWEEN AN INK ROLL AND A FIRST INK ROLL FOR PRINTING PRESS |
| DD207361A1 (en) * | 1982-04-21 | 1984-02-29 | Wolfgang Beier | DOSING DEVICE FOR PROCESSING MACHINES, ESPECIALLY PRINTING MACHINES |
| DE3324445C2 (en) * | 1983-07-07 | 1985-09-12 | M.A.N.- Roland Druckmaschinen AG, 6050 Offenbach | Ink metering device on letterpress and offset printing machines |
| EP0131108B1 (en) * | 1983-07-07 | 1988-07-27 | M.A.N.-ROLAND Druckmaschinen Aktiengesellschaft | Inking or damping unit for rotary printing machines |
| DE3331208A1 (en) * | 1983-08-30 | 1985-03-14 | M.A.N.- Roland Druckmaschinen AG, 6050 Offenbach | METHOD FOR ADJUSTING THE INK OF A PRINTING MACHINE AND MEASURING DEVICE FOR ITS IMPLEMENTATION |
| DE3344778C1 (en) * | 1983-12-10 | 1985-04-11 | M.A.N.- Roland Druckmaschinen AG, 6050 Offenbach | Ink metering device for the inking unit of a printing machine |
| US4524692A (en) * | 1984-04-18 | 1985-06-25 | Didde Graphic Systems Corporation | Electronic ink flow control for printing |
-
1989
- 1989-12-11 CA CA 2005045 patent/CA2005045A1/en not_active Abandoned
-
1990
- 1990-01-24 WO PCT/US1990/000387 patent/WO1990013427A1/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| WO1990013427A1 (en) | 1990-11-15 |
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