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US3695221A - Coating apparatus - Google Patents

Coating apparatus Download PDF

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Publication number
US3695221A
US3695221A US146191A US3695221DA US3695221A US 3695221 A US3695221 A US 3695221A US 146191 A US146191 A US 146191A US 3695221D A US3695221D A US 3695221DA US 3695221 A US3695221 A US 3695221A
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US
United States
Prior art keywords
roll
casing
blade
fluid
frame
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 - Lifetime
Application number
US146191A
Other languages
English (en)
Inventor
Edwin K Schaeuble
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Paper Converting Machine Co
Original Assignee
Paper Converting Machine Co
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 Paper Converting Machine Co filed Critical Paper Converting Machine Co
Application granted granted Critical
Publication of US3695221A publication Critical patent/US3695221A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F9/00—Rotary intaglio printing presses
    • B41F9/06—Details
    • B41F9/061—Inking devices

Definitions

  • ABSTRACT Coating apparatus for the application of fluid media to a traveling web wherein a unique fountain arrange- 5 "118/203, E85 1 ment is provided for a reverse angle doctor blade to n n C i i i f i [58] Field of Search ..118/261, 259, 258, 248, 249, g
  • Rapid throughflow of the fluid is achieved through the use of a casing having ends spaced from the roll ends. Additionally, the amount of fluid subject to shearing action is reduced through a unique baffling arrangement.
  • FIG. 1 is a fragmentary side elevational view of the portion of the coating apparatus equipped with the fountainless reverse angle doctor blade;
  • FIG. 2 is a fragmentary top plan view of the apparatus of FIG. 1.
  • the fountainless reverse angle doctor blade dealt with in detail herein is part of an overall larger machine (not shown) which provides means for unreeling a web, conducting the same through various stations, and presenting the same in condition for ultimate dispensing, as by rewinding, severing, folding, etc.
  • the numeral designates generally a portion of a machine frame which is integrated with other web processing devices. Shown journaled in the frame 10 is a roll 11 supported within a suitable bearing 12. It will be appreciated that only one half of the roll 11 is shown, the other half of the machine being essentially symmetrical to that shown in FIG. 2.
  • the instant invention has application to both offset gravure and gravure rolls. In the latter case, the fluid applied to the gravure roll is conducted to a different position from where the doctoring occurs, and thereafter applied to a web W backed by a suitable rubber covered impression cylinder 13 also carried by the frame 10.
  • the roll 11 is equipped with a shaft extension as at 11a which extends through an outer housing generally designated 14 and suitably interconnected with the frame 10 as at 15 in FIG. 2.
  • the housing 14 is equipped with a screen 14a through which excess fluid (viz., ink, glue, clay coating, etc.) passes for collection and recirculation through a fluid inlet 16 (see the left hand side of FIG. 1).
  • the housing is suitably slotted in its top to provide access for the cylinder 13.
  • Fluid entering at inlet 16 is delivered to a casing generally designated 17 defined by a back wall 18, a bottom wall 19, and end walls 20. It will be noted (see the central portion of FIG. 2) that the end wall 20 is located a spaced distance from the end face 21 of the roll 11. Thus ink or other coating fluid can escape through this narrow controlled gap and is removed from the end face 21 by means of a wiper 22.
  • the wiper consists of a flexible blade constructed of mylar or the like which is in wiping engagement with end face 21 of the roll 11. This cleans the roll face 21 and minimizes fluid splatter or slinging.
  • Fluid entering the inlet conduit 16 passes over a baffle 23 and thence into the reservoir section 24 where it is in contact with the periphery of the roll 11. Excess fluid is removed by the coaction of the periphery of the roll 11 and the reverse angle doctor blade generally designated 25. The direction of rotation of the roll 11 is indicated by the arrow shown adjacent the doctor blade 25 and designated by the numeral 26. As indicated previously, there is not a tight or close seal at 27; rather, a small gap is defined by the juxtaposition of the end wall 20 and the end face 21 of the roll 11. The width of the gap 27 is sized to permit fluid to escape from the fountain or reservoir portion 24 and be recirculated back into the casing 17 along with added fluid to maintain a desired fluid level as at 28 in the fountain casing 17.
  • the tendency of the fluid to foam, particularly where the fluid is of relatively low viscosity, as is the case withinks and certain adhesives and emulsions applied during packaging operations, is materially reduced through the spacing 27 and interposition of the baffle 23 which also improves fluid distribution within the casing 17.
  • the ink or other fluid enters the casing below the top of the baffle and has to flow thereover to reach the doctor blade.
  • I also provide certain advantageous adjustments relative to the doctor blade 25.
  • a hand wheel 29 (shown only in outline on FIG. 1, but clearly designated in the lower central portion of FIG. 2) which operates to move the casing 17, and hence the doctor blade 25, horizontally toward and away from the roll 11. This movement establishes the level of doctor blade pressure against the roll 11.
  • I equip the shaft 30 (which carries the handwheel 29) with a worm 31 (FIG. 2).
  • the worm 31 is engaged with a worm gear 32 (see FIG. 1) affixed to a threaded rod 33.
  • the rod 33 is coupled to a block 34 which rides in ways 35 mounted on a cross part 10a of the frame 10.
  • Four blocks 34 are provided across the width of the machine and support a pivot shaft 36.
  • the pivot shaft 36 has a pair of angle blocks 37 and 38 for each sliding block 34.
  • the angle blocks 37 and 38 are fixed to the shaft 36 and also to a cross bar 39, the latter by bolts 40.
  • the casing 17, in turn, is secured
  • the entire assembly can be pivoted around the axis of shaft 36 by means of turning the shaft 36 as indicated by the arrow 44 (see FIG. 2).
  • the purpose of this construction is to permit rotating the fountain casing upward, when the fountain and blade are first suffrciently retracted to clear the roll, so that the blade can be readily serviced, inspected, and replaced. This also allows varying the wiping angle.
  • a frame journaled for rotation in said frame, means operably associated with said frame for advancing a web into contact with said roll, a casing on said frame in juxtaposition to said roll, said casing having side, end, and bottom walls, said end walls being spaced from the ends of said roll to provide a small gap therebetween, said bottom wall being equipped with a generally I planar elongated doctor blade arranged to contact said roll between said end walls and cooperating with said casing and said roll to define a chamber for the receipt of a fluid, means for delivering fluid to said chamber, said blade being disposed to develop a scraping as contrasted to a wiping action on said roll, a housing about said roll and casing, and means on said frame for moving said casing and blade toward or away from said roll.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Coating Apparatus (AREA)
  • Paper (AREA)
  • Inking, Control Or Cleaning Of Printing Machines (AREA)
US146191A 1971-05-24 1971-05-24 Coating apparatus Expired - Lifetime US3695221A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US14619171A 1971-05-24 1971-05-24

Publications (1)

Publication Number Publication Date
US3695221A true US3695221A (en) 1972-10-03

Family

ID=22516220

Family Applications (1)

Application Number Title Priority Date Filing Date
US146191A Expired - Lifetime US3695221A (en) 1971-05-24 1971-05-24 Coating apparatus

Country Status (8)

Country Link
US (1) US3695221A (ru)
JP (1) JPS5221528B1 (ru)
BE (1) BE773951A (ru)
CA (1) CA951115A (ru)
CH (1) CH548800A (ru)
DE (1) DE2206147C3 (ru)
FR (1) FR2138593B1 (ru)
GB (1) GB1301794A (ru)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4091129A (en) * 1977-05-16 1978-05-23 Paper Converting Machine Company Method and apparatus for coating using an open-ended ink chamber having restrictions for partially limit ink flow
US4259055A (en) * 1979-10-01 1981-03-31 E. I. Du Pont De Nemours And Company Coating apparatus
USRE30819E (en) * 1977-05-16 1981-12-08 Paper Converting Machine Company Method for coating using an open-ended ink chamber having restrictions for partially limit ink flow
DE3427430A1 (de) * 1984-07-25 1986-02-06 Erich 2000 Hamburg Pagendarm Walzenanordnung mit einer badwalze und stirnseitigen dichtungseinrichtungen
US4590855A (en) * 1984-06-18 1986-05-27 Printco Industries, Ltd. Reverse angle doctor blade assembly with stationary end seal
US4853072A (en) * 1985-04-17 1989-08-01 Thompson Corrugated Systems, Inc. Corrugating machines
US4882005A (en) * 1986-05-16 1989-11-21 Thompson Corrugated Systems, Inc. Device for making laminated arch corrugated structures
US9044776B2 (en) 2012-09-04 2015-06-02 Harris & Bruno Machine Co., Inc. Stabilized high flow doctor blade head for transfer roller
CN108554733A (zh) * 2018-06-01 2018-09-21 中山松德新材料装备有限公司 一种刮刀间隙调整机构

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4091129A (en) * 1977-05-16 1978-05-23 Paper Converting Machine Company Method and apparatus for coating using an open-ended ink chamber having restrictions for partially limit ink flow
DE2820249A1 (de) * 1977-05-16 1978-11-23 Paper Converting Machine Co Verfahren und vorrichtung zum auftragen von einer fluessigen beschichtung auf eine sich bewegende bahn
USRE30819E (en) * 1977-05-16 1981-12-08 Paper Converting Machine Company Method for coating using an open-ended ink chamber having restrictions for partially limit ink flow
US4259055A (en) * 1979-10-01 1981-03-31 E. I. Du Pont De Nemours And Company Coating apparatus
US4590855A (en) * 1984-06-18 1986-05-27 Printco Industries, Ltd. Reverse angle doctor blade assembly with stationary end seal
DE3427430A1 (de) * 1984-07-25 1986-02-06 Erich 2000 Hamburg Pagendarm Walzenanordnung mit einer badwalze und stirnseitigen dichtungseinrichtungen
US4853072A (en) * 1985-04-17 1989-08-01 Thompson Corrugated Systems, Inc. Corrugating machines
US4882005A (en) * 1986-05-16 1989-11-21 Thompson Corrugated Systems, Inc. Device for making laminated arch corrugated structures
US9044776B2 (en) 2012-09-04 2015-06-02 Harris & Bruno Machine Co., Inc. Stabilized high flow doctor blade head for transfer roller
CN108554733A (zh) * 2018-06-01 2018-09-21 中山松德新材料装备有限公司 一种刮刀间隙调整机构
CN108554733B (zh) * 2018-06-01 2023-10-27 中山市优绿智得数码科技有限公司 一种刮刀间隙调整机构

Also Published As

Publication number Publication date
JPS5221528B1 (ru) 1977-06-11
BE773951A (fr) 1972-01-31
DE2206147C3 (de) 1981-02-19
FR2138593B1 (ru) 1973-05-25
FR2138593A1 (ru) 1973-01-05
CA951115A (en) 1974-07-16
GB1301794A (ru) 1973-01-04
CH548800A (fr) 1974-05-15
DE2206147B2 (de) 1980-06-12
DE2206147A1 (de) 1972-12-07

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