WO1991006428A1 - Appareil a cylindre plongeur - Google Patents

Appareil a cylindre plongeur Download PDF

Info

Publication number
WO1991006428A1
WO1991006428A1 PCT/US1990/004798 US9004798W WO9106428A1 WO 1991006428 A1 WO1991006428 A1 WO 1991006428A1 US 9004798 W US9004798 W US 9004798W WO 9106428 A1 WO9106428 A1 WO 9106428A1
Authority
WO
WIPO (PCT)
Prior art keywords
blade
metering roll
fountain
metering
peripheral surface
Prior art date
Application number
PCT/US1990/004798
Other languages
English (en)
Inventor
Jess Cornett
Peter P. Mandel
James S. Stirbis
Thomas W. Beebe
Original Assignee
Adolph Coors Company
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Adolph Coors Company filed Critical Adolph Coors Company
Publication of WO1991006428A1 publication Critical patent/WO1991006428A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F31/00—Inking arrangements or devices
    • B41F31/20—Ink-removing or collecting devices

Definitions

  • This invention is directed generally to can decorating machines and more particularly to fountain roll apparatus wherein an even layer of a fluid material is formed on the outer peripheral surface of the fountain roll to be transferred to an applicator roll.
  • metering blades While the metering blades generally do a good job in controlling the thickness of the layer of coating material on the engraved metering roll, there is some tendency for excessive coating material to be formed on the metering roll. In succeeding operations, this results in the slinging of the excessive material to result in an undue number of clean-up operations.
  • One prior art apparatus used a pair of spaced apart scraper blades mounted on one end of a pivotally mounted elongated linearly extending lever. A weight was placed on the other end of the lever so as to urge the pair of spaced apart scraper blades into contact with the lower portion of the metering roll.
  • This invention provides doctor blade means for ensuring that only the desired amount of fluid material remains on the metering roll of a fountain roll apparatus wherein the doctor blade means are rotatably mounted on a pair of spaced apart lever arms each of which is pivotally mounted on a fixed frame of the fountain roll apparatus.
  • a preferred embodiment of the invention is described in relation to a fountain roll apparatus for an over varnish applicator for applying varnish to a decorated can body.
  • the fountain roll apparatus of this invention can be used wherever it is desired to transfer a portion of a fluid in a reservoir to an applicator roll or other apparatus using a metering roll passing through the reservoir.
  • the fountain roll apparatus of this application applies an even layer of a fluid material on the outer surface of an applicator roll which is mounted for rotation on the fixed main frame of a can decorating apparatus using a metering roll which is mounted for rotation on a base support secured to the main frame and located so that a portion of its outer peripheral surface is located next adjacent to a portion of the outer peripheral surface of the applicator roll.
  • a fountain holder assembly is adjustably mounted on the base support.
  • a fountain block assembly is mounted on the fountain holder assembly and located so that a portion of the metering roll passes through a portion of the fountain block assembly during its rotation.
  • One or more metering blade members are adjustably mounted so that the location of the leading edges thereof may be moved toward or away from the outer peripheral surface of the metering roll.
  • the portion of the fountain block assembly, the portion of the metering roll and the one or more metering blade members forming a reservoir for holding a supply of fluid material, so that a metered portion of the fluid material is applied to the outer peripheral surface of the metering roll as it passes through the portion of the fountain block assembly.
  • Resilient doctor blade means are provided for removing excess amounts of the fluid material on the outer peripheral surface of the metering roll so that only the desired amount of the fluid material remains on the metering roll to be transferred to the applicator roll.
  • the doctor blade means are rotatably mounted on a pair of spaced apart lever arms each of which is pivotally mounted on the fountain holder assembly.
  • Resilient means are provided to apply a force to each lever arm to urge the doctor blade means against the outer peripheral surface of the metering roll.
  • the doctor blade means have a first blade adapted to remove any excess amounts of the fluid material from the metered amount of the fluid material on the outer peripheral surface of the metering roll and a second blade to ensure that the first blade is properly located.
  • At least one conventional scraper blade means is resiliently mounted on each sidewall of the portion of the fountain block assembly and they are urged against the opposite end surfaces of the metering roll to remove any fluid material thereon.
  • Fig. 1 is a schematic side elevational view, with parts removed, of a portion of a can decorating apparatus and illustrating the overcoating apparatus of the prior art;
  • Fig. 2 is a cross-sectional view of the mounting of a metering roll and an applicator roll of the prior art
  • Fig. 3 is a side elevational view of the fountain roll apparatus of this invention.
  • Fig. 4 is a perspective view of the fountain holder assembly of this invention.
  • Fig. 5 is a rear elevational view of Fig. 3;
  • Fig. 6 is a side elevational view of the fountain block assembly of this invention.
  • Fig. 7 is a cross-sectional view taken on the line 7-7 of Fig. 6.
  • FIG. 1 and 2 of the drawing A conventional overvarnish apparatus 20 of the prior art is illustrated in Figs. 1 and 2 of the drawing and is mounted on a support frame means 22 beneath and to one side of a mandrel wheel means 24.
  • the mandrel wheel means 24 includes a plurality of circumferentially spaced rotatable mandrel means 26 which receive and carry can body members 28 in a generally circular path indicated by arrow 30 past ink image applying blanket apparatus 32 whereat ink label images are applied to the peripheral surfaces of the cans.
  • the cans After the cans have been decorated, they are carried past the overvarnish apparatus 20 whereat the mandrel means 26 are engaged by a pre-spin wheel means 33 to cause rotation of the mandrels before a protective coating of lacquer is applied to the cans by a relatively large applicator roll means 34 which is rotatable about an axis 35 which is parallel with the axis of the mandrel wheel means 24.
  • the pre-spin wheel means 33 and applicator roll means 34 are mounted on a movable frame means 36 which is adjustably supported by a pivot arm means 38 for enabling adjustment of the peripheral location of applicator roll means 34 relative to mandrel wheel means 26 about a pivotal axis 40 in the directions of arrow 42 by actuation of adjustment means 44.
  • An adjustment means 46 is associated with arm means 38 to enable the applicator roll axis 35 to be adjusted into parallel relationship with the longitudinal axes of mandrel means 26.
  • a relatively small diameter engraved lacquer metering roll means 48 is mounted on frame means 36 for applying lacquer to applicator roll means 34 from a fountain means 50 mounted in a fountain housing means 52.
  • An adjustment means 54 is mounted on frame means 36 and operatively associated with meter roll means 48 and housing means 52 to enable adjustment of the position of the metering roll means 48 relative to applicator roll means 34.
  • the frame means 36 is in the form of a rectangular shape casting having a base portion 60 with a flat bottom support surface 62, an upwardly outwardly extending pillar portion 64, and a housing portion 66, Fig. 2, with a gear cavity 68, an applicator roll shaft hub portion 70, and a metering roll shaft hub portion 72.
  • An input gear 74 is mounted on a shaft 76, rotatably supported in a cover member 78 and housing wall portion 80 by suitable bearing means.
  • a gear 82 on shaft 76 drives a gear 84 on one end of meter roll shaft 86 which is mounted in an eccentric sleeve means 88 by suitable bearing means with metering roll 48 suitably mounted on the opposite end of shaft 86.
  • metering roll 48 is shown in fully retracted inoperative position by solid lines 89 and in the operative position by dotted lines.
  • Another gear 90 on shaft 76 drives a gear 92 on shaft 94 and a gear 96 on one end of applicator roll shaft 98 which is rotatably supported in hub position 70 by suitable bearing means.
  • Pre-spin means 33 comprises a wheel member 100 suitably fixedly mounted on an intermediate portion of shaft 98 with an annular peripheral rubber ring member 102 suitably removably attached thereto.
  • Applicator roll means 34 comprises a wheel member 104 suitably fixedly mounted on the end of shaft 98 with an annular peripheral rubber-like sleeve member 106 affixed to the wheel periphery.
  • Sleeve means 88 is rotatably mounted in hub portion 72 so that the location of the metering roll axis 108 may be changed relative to the applicator roll axis 110.
  • a collar portion 112 of sleeve member 88 is connected to a pivot block 114, Figs. 1 and 2, attached to rod member 115 threadedly mounted in a block 116 fixed to housing portion 66 to provide adjustment means 54 for engaging metering roll 48 with applicator roll 34 under varying amounts of force.
  • the longitudinal position of the applicator roll means 34 may be adjusted by push-pull adjustment screw means 117 which locate the applicator roll means relative to the shaft means 98.
  • the longitudinal position of the metering roll means 48 may be adjusted by push-pull adjustment screw means 118 which locate the metering roll means 48 relative to the shaft means 86.
  • the fountain roll apparatus of this invention illustrated in Figs. 3 - 7 of the drawings, applies an even layer of a fluid material on the outer peripheral surface 120 of the applicator roll 34 of Fig. 1 which is mounted on the frame 36 for rotation relative thereto using a metering roll 48 which is mounted for rotation on the base support 122 secured to the main frame 36 and located so that a portion 124 of its outer peripheral surface 126 is located next adjacent to a portion 128 of the outer peripheral surface 120 of the applicator roll 34.
  • a fountain holder assembly 130, Figs. 3 and 4 is adjustably mounted on the base support 122.
  • a fountain block assembly 134 is mounted on the fountain holder assembly 130 and located so that a portion 136 of the metering roll 48 passes through a portion 138 of the fountain block assembly.
  • a plurality of metering blade members 140 have edge portions 142 next adjacent to the outer peripheral surface 126 of the metering roll 48. While a plurality of metering blades are disclosed, it is understood that one or more metering blades may be used.
  • a reservoir 144 is formed by the portion 136 of the metering roll 48, the portion 138 of the fountain block assembly 134 and the plurality of metering blade members 140. A supply of the fluid material 146 is continuously supplied to the reservoir 144.
  • Adjustment means 148 are provided for varying the space between the edge portions 142 and the outer peripheral surface 126 so that a metered amount of the fluid material 146 may be deposited on the outer peripheral surface 126 as the portion 136 of the metering roll 48 passes therethrough.
  • Doctor blade means 150 are rotatably mounted, as described below, on a pair of spaced apart lever arms which are pivotally mounted on the fountain holder assembly 130, as described below.
  • the doctor blade means 150 have a resilient first blade 154 which is adapted to remove any excess amounts of the fluid material 146 from the metered amount of the fluid material on the outer peripheral surface 126 so that only the desired amount of the fluid material 146 remains on the metering roll 48 to be transferred to the applicator roll 34 and a second blade 156 to ensure that the resilient first blade 154 is properly located.
  • the fountain holder assembly 130 is illustrated in Figs. 3 - 5 and comprises a base plate 160 which is slidably mounted on a fixed support member 162.
  • a key 164 is secured in a recess in the upper surface of the fixed support member 162 and the base plate 160 has a recess 166 shaped to receive a portion of the key 164 so as to guide the fountain holder assembly 130 as it is moved over the fixed support member 162.
  • a pair of spaced apart aligned slots 168 are in the base plate 160 and a threaded locking bolt 170 extends through each slot 168 and is threaded into a threaded opening in the fixed support member 162. When tightened, the bolts 170 prevent movement of the fountain holder assembly 130.
  • a pair of spaced apart blocks 172 are secured on the base plate 160 and have channels 174 formed in the upper surfaces thereof for removing overflow of the fluid material 146 as described below.
  • a pair of spaced apart sidewalls 176 and 178 are secured on the base plate 160..
  • Each of the sidewalls has a groove 180 formed in the inner surface thereof and having a closed end 182 and an opened end 184 which grooves are used to support and position the fountain block assembly 134 as described below.
  • Locking means 186 are mounted on each of the sidewalls 176 and 178 and comprise a lever 188 rotatably mounted on a pin 190 which prevents axial movement of the lever 188 and a threaded bolt 192 which functions to lock the fountain block assembly 134 in place, as described below.
  • Pivot bracket means 194 are mounted on each of the sidewalls 176 and 178 and comprise a base member 196 that is attached to each of the sidewalls 176 and 178 by headed threaded bolts 198 and have an integral outwardly projecting arm member 200.
  • a first angularly shaped lever 202 is pivotally mounted on the arm member 200 mounted on the sidewall 176 by pivot means 204.
  • a second angularly shaped lever 206 is pivotally mounted on the arm member 200 mounted on the sidewall 178 by pivot means 208.
  • Each of the first and second levers 202 and 206 having a central portion 210, a first end portion 212 and a second end portion 214.
  • the doctor blade means 150 are rotatably mounted on the first end portions 212 of the first and second levers 202 and 206.
  • the doctor blade means 150 comprise an elongated body portion 220 which is rotatably mounted on the first end portions 212 by rotation permitting means 222.
  • the elongated body portion 220 has a generally planar surface 224 with a first generally planar mounting surface 226 extending therefrom at an included angle of about 90 degrees and a second generally planar mounting surface 228 extending therefrom at an included angle of about 135 degrees.
  • the first blade 154 is mounted on the first mounting surface by a plurality of headed threaded bolts 230 and is positioned by the abutting shoulders 232.
  • the second blade 156 is mounted on the second mounting surface 228 by a plurality of headed threaded bolts 234 and is positioned by the abutting shoulders 236.
  • the first and second blades 154 and 156 have a length which is at least as great as the axial extent of the metering roll 48.
  • Resilient means 238 are provided for urging the doctor blade means 150 toward the metering roll 48 and comprise a stud 240 projecting upwardly from a plate member 242 secured on the top surface of each of the sidewalls 176 and 178.
  • a spring 244 has one end 246 connected to the second end portions 214 of the first and second levers 202 and 206 and a second end 248 connected to the studs 240 on the first and second sidewalls 176 and 178.
  • the fountain block assembly 134 is illustrated in Figs. 3 and 5 - 7 and comprises a pair of spaced apart sidewalls 260 and 262.
  • a pair of spaced apart lugs 264 project outwardly from the outer surface of each of the sidewalls 260 and 262 and are adapted to be placed in the grooves 180 in the first and second sidewalls 176 and 178 so as to support and position the fountain block assembly 134.
  • a bottom support block 266 extends between and is secured to the sidewalls 260 and 262 by suitable means such as the headed threaded bolts 268.
  • the plurality of metering blade members 140 are supported on the upper inclined surface 270 of the support block 266 and are clamped thereon by a clamping plate 272.
  • the plurality of adjustment means 148 are threadedly mounted in the support block 266 and have tapered leading portions 274 adapted to contact the metering blade members 140. There is an adjustment means 148 for each of the metering blade member 140.
  • a knurled knob 276 is provided for rotating the threaded rod 278 so that the rotation of the threaded rod 278 moves the tapered leading portion 274 toward or away from the metering blade member 140.
  • Each of the sidewalls 260 and 262 has a pair of spaced apart linearly extending recesses 280 formed in the inner surfaces thereof and each recess 280 has a closed end 282 and an open end 284.
  • a scraper blade 286 is mounted in each of the recesses 280 and is resiliently urged into contact with one of the opposite end surfaces 288 of the metering roll 48 by a pair of spaced apart springs 290 located in spaced apart bores 291.
  • a headed bolt 292 extends through openings 294 and 296 and is threaded into the scraper blade 286. The headed bolt 292 is larger than the opening 294 so as to limit the movement of the scraper blade 286 so that it will not be pushed completely out of the recess 280.
  • a cover 300 is removably secured to the sidewalls 260 and 262 by headed threaded bolts 302. As illustrated in Figs. 3 and 5, the cover 300 is close to outer peripheral surface 126 of the metering roll 48 and the top of the clamping plate 272 so that the supply of fluid material is substantially confined so as to hold misting or slinging of the fluid material to a minimum.
  • the reservoir of the supply of fluid material is substantially smaller than cavity defined by the sidewalls 176, the clamping plate 172, the metering blade members 140 and the peripheral surface 126 of the metering roll 48 so that agitation of the supply of fluid material is held to a minimum.
  • the scraper blades 286 cooperate with the portion 138 of the metering roll 48 to form a part of the means for defining the reservoir 144 for the supply of fluid material 146.
  • the resiliently mounted scraper blades 286 permit metering rolls of differing axial extents to be used in the fountain roll apparatus of this invention.
  • the fountain holder assembly 130 is positioned on the support 162 with the headed bolts 170 in a loosened position.
  • the fountain block assembly 134 is mounted on the fountain holder assembly 130 by inserting the lugs 264 into the grooves 180 and moving it downward until the leading lugs 264 contact the closed ends 182.
  • the levers 188 are rotated and the threaded bolts 192 are tightened against the sidewalls 260 and 262 to lock the fountain block assembly 134 in position.
  • the assembled fountain holder assembly 130 and the fountain block assembly 134 are moved toward the metering roll 48.
  • the fluid material 146 is supplied by suitable means such as a conduit 304 to form the supply of fluid material 146 in the reservoir 144.
  • suitable means such as a conduit 304 to form the supply of fluid material 146 in the reservoir 144.
  • the level of the supply of the fluid material 146 in the reservoir 144 is maintained by a pair of spaced apart overflow bores 306 which direct any overflow into the spaced apart channels 174.
  • Overflow return means 308 are provided to return any overflow back to the original source.
  • the metering roll 48 passes through the supply of fluid material 146 in the reservoir 144, a portion thereof is deposited on the outer peripheral surface 126 and the metering blade members 140 function to provide a metered amount of the fluid material 146 on the outer peripheral surface 126.
  • the scraper blades 286 function to remove fluid material 146 from the end surfaces 288.
  • the first and second blades 154 and 156 contact the outer peripheral surface 126 of the metering roll 48 so that an arcuate portion 310 of the outer peripheral surface 126 is located therebetween.
  • the portion of the second blade 156 which contacts the outer peripheral surface 126 is located closer to the axis of rotation of the doctor blade means 150 than the portion of the first blade means which contacts the outer peripheral surface 126.
  • the second blade 156 urges the first blade toward the outer peripheral surface 126 so that the first blade 154 functions to remove excess portions of the metered amount of the fluid material 146 so that only the desired amount of the fluid material 146 remains on the outer peripheral surface 126 of the metering roll 48 to be transferred to the applicator roll 34.
  • Fluid material return means 312 are used to collect fluid material 146 removed by the first blade 154 or the scraper blades 286 and return it to the original supply.
  • the individual pivotal mounting of the first and second levers 202 and 206 cooperates with the rotatable mounting of the doctor blade means 150 to ensure a uniform contact between the outer peripheral surface 126 and the first blade 154.

Landscapes

  • Coating Apparatus (AREA)

Abstract

Un appareil à cylindre plongeur comporte un ensemble de support de mouillage (130) possédant un ensemble de bloc de mouillage (134) monté sur celui-ci, dans lequel une partie d'un rouleau doseur rotatif (48) passe par un matériau liquide (146) contenu dans un réservoir (144) formé par l'ensemble de bloc de mouillage (134) et par la partie du rouleau doseur (48). Au moins un élément de lame de dosage (140) applique une quantité prédéterminée de matériau liquide (146) sur le rouleau doseur (48) lorsqu'il passe par l'ensemble de bloc de mouillage (134). Un racleur (154) est monté sur un élément de forme allongée (220) dont chaque extrémité est montée de manière à tourner sur un bras de levier (202, 206) pivotant par rapport à l'ensemble de support de mouillage (130) et monté de façon à faire ressort afin de maintenir le racleur (154) contre la surface périphérique externe (126) du rouleau doseur (48) pour en retirer le surplus de matériau liquide. Une lame supplémentaire (156) est montée sur l'élément allongé (220) en contact avec la surface périphérique externe (126) du rouleau doseur (48) pour assurer le bon positionnement du racleur (154).
PCT/US1990/004798 1989-10-26 1990-08-21 Appareil a cylindre plongeur WO1991006428A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US42788189A 1989-10-26 1989-10-26
US427,881 1989-10-26

Publications (1)

Publication Number Publication Date
WO1991006428A1 true WO1991006428A1 (fr) 1991-05-16

Family

ID=23696673

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1990/004798 WO1991006428A1 (fr) 1989-10-26 1990-08-21 Appareil a cylindre plongeur

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WO (1) WO1991006428A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2062729A1 (fr) * 2007-11-26 2009-05-27 Alcan Technology & Management Unité d'application pour matériau d'application contenant du solvant

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4026210A (en) * 1975-04-24 1977-05-31 Rotobind Ltd. Printing apparatus and method
US4441418A (en) * 1982-02-03 1984-04-10 Adolph Coors Company Overvarnish apparatus for decorator machine

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4026210A (en) * 1975-04-24 1977-05-31 Rotobind Ltd. Printing apparatus and method
US4441418A (en) * 1982-02-03 1984-04-10 Adolph Coors Company Overvarnish apparatus for decorator machine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2062729A1 (fr) * 2007-11-26 2009-05-27 Alcan Technology & Management Unité d'application pour matériau d'application contenant du solvant

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