US2915038A - Roller positioning apparatus for coating machines - Google Patents

Roller positioning apparatus for coating machines Download PDF

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Publication number
US2915038A
US2915038A US668523A US66852357A US2915038A US 2915038 A US2915038 A US 2915038A US 668523 A US668523 A US 668523A US 66852357 A US66852357 A US 66852357A US 2915038 A US2915038 A US 2915038A
Authority
US
United States
Prior art keywords
coating
roller
shaft
cam
rollers
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US668523A
Other languages
English (en)
Inventor
Wallenberg Fritz
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.)
GAF Chemicals Corp
Original Assignee
General Aniline and Film Corp
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
Priority to BE567979D priority Critical patent/BE567979A/xx
Application filed by General Aniline and Film Corp filed Critical General Aniline and Film Corp
Priority to US668523A priority patent/US2915038A/en
Priority to DEG24762A priority patent/DE1081762B/de
Application granted granted Critical
Publication of US2915038A publication Critical patent/US2915038A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H23/00—Processes or apparatus for adding material to the pulp or to the paper
    • D21H23/02—Processes or apparatus for adding material to the pulp or to the paper characterised by the manner in which substances are added
    • D21H23/22—Addition to the formed paper
    • D21H23/32—Addition to the formed paper by contacting paper with an excess of material, e.g. from a reservoir or in a manner necessitating removal of applied excess material from the paper
    • D21H23/40—Addition to the formed paper by contacting paper with an excess of material, e.g. from a reservoir or in a manner necessitating removal of applied excess material from the paper only one side of the paper being in contact with the material
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H5/00—Special paper or cardboard not otherwise provided for
    • D21H5/0005—Processes or apparatus specially adapted for applying liquids or other fluent materials to finished paper or board, e.g. impregnating, coating
    • D21H5/0012—Processes or apparatus specially adapted for applying liquids or other fluent materials to finished paper or board, e.g. impregnating, coating by bringing paper into contact with an excess of fluids, the paper carrying away only a part of the fluid material, e.g. by passing through liquids, gases or vapours
    • D21H5/0015—Processes or apparatus specially adapted for applying liquids or other fluent materials to finished paper or board, e.g. impregnating, coating by bringing paper into contact with an excess of fluids, the paper carrying away only a part of the fluid material, e.g. by passing through liquids, gases or vapours only one side of the paper being in contact with the treating medium, e.g. paper carried by support
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
    • G03C1/00—Photosensitive materials
    • G03C1/74—Applying photosensitive compositions to the base; Drying processes therefor
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S118/00—Coating apparatus
    • Y10S118/02—Bead coater

Definitions

  • This invention pertains to coating apparatus and, particularly, to machines used for coating a thin layer of viscous material, such as aphoto-graphic emulsion, onto a web which may be film or paper.
  • coating roller carrying the film or paper and the applicator roller are disposed in axially parallel relationship and adapted to rotate in close proximity, maintaining between them a body of the coating substance inthe form of a bead.
  • a particular feature of this invention is that the apparatus for the attainment of "the above object is simple in construction and requires but one cycle ofopera'tion in the'form of a complete rotation of aliandwhe'el. Another feature of this invention is that individual adjustments are provided for setting both the coating distance and'the wetting position between "the web carrying roller and the applicator rollen;
  • Fig. 1 is a perspectiveQsimpIified view of the roller positioning apparatus
  • Fig. 2 is a front elevational view of the operating .
  • Fig. 3 is a sectional view of Fig. 2, taken along line
  • Fig. 4 is a front elevationaliview of a portion of'the apparatus showing one of theadjustmentsand
  • vFig. 5 is a sectional view of Fig. 4, "taken along line In coating apparatus 'of' the type where an applicator rolleris used, it is essential that in forming'a' bead of the coating solution the following operations formed in rapid succession.
  • r l is essential that in forming'a' bead of the coating solution the following operations formed in rapid succession.
  • the applicator roller 9 is the coating roller 20 held in the machine frame 21 and journa-lled in suitable bearings to bedriven -by the motor 22.
  • the web 23 to be coated with the solution in :the pan 7 travels around the roller 20.
  • Coating machines of this type generally employ a plurality of rollers over which the web 23 travels until it reaches a coating roller located above. the applicator roller 9.
  • Roller-positioning is accomplished in accordance with the present invention by the apparatus placed underneath the platform 6 and consists of a camfollower 25, the
  • the end of the shaft 33 carries a hand crank 37 having a retractable stop pin 30 which cooperates with a slot 39 in a disc 40.
  • crank 37 and associated mechanism can better be seen in Figs. "2 and 3 to which reference should be had.
  • the disc 40 is secured to a sleeve '41 which rotates over a hub 42 secured to the frame 18.
  • the sleeve 41 may be displaced aroundthe shaft 33, 'but independently therefrom, by means of the gear 44 actuated by the worm 45 rotated by means :of the handle 46.
  • the crank 37 has a retractable pin 30 which is biased against outward movement by a spring 48 so that it is urged into the slot 39 of the disc40.
  • the pin 30 has a handle portion 50 carrying rollers 51 and 51' which ride over the sloping front of the bushing 52 so that rotation of handle portion 50 constrains the pin 30 outwardly as the rollers 51 and 51' ride over the surface of the bushing 52.
  • a second retractable pin 54 is provided in the crank body cooperating with a button 55, the face of which has a depression to accommodate the rounded end of the pin 54.
  • the latter is also biased by a spring 56.
  • the purpose of the second pin 54 is to insure a certain amount of hold on the crank 37 when the pin 30 is retracted. Without this hold, the weight of the platform 6 on the cam 32 may be sufficient to turn the shaft 33 and thereby disrupt normal operation.
  • a trip button 58 Extending toward the crank 37 and attached to the frame 18 is a trip button 58 which is so proportioned as to engage the handle portion 50 of the pin 39 upon rotation of the crank 37 over a certain arcuate distance.
  • FIGs. 4 and 5 the views illustrate the bracket 15 in the frame 18 and the adjusting mechanism for the cam follower 25, as well as the bearings 34 and 35 of the shaft 33 also being supported by the frame 18.
  • the position of the crank 37 shown in Figs. 1, 2 and 3 represents the normal coating position.
  • the cam 32 is so displaced that the platform 6, resting thereon by virtue of the cam follower 25, is lowered to position the rollers 9 and 20 at a critical distance at which a bead of the coating solution is formed therebetween.
  • the crank 37, and thereby the shaft 33, are locked since the pin 30 engages the slot 39.
  • a 90 turn will cause the handle portion 50 to abut against the trip button 58 whereby the pin 30 is reset into its original position and will readily engage the slot 39 upon complete revolution of the shaft 33.
  • the pin 30 will ride over the surface of the disc 40 until the crank 37 is again in position for the pin 30 to engage slot 39 and thereby lock the crank 37 and the shaft 33 against further movement.
  • the cam follower 25 may be positioned for the purpose of adjustments by turn ng the worm 36 and thereby the offset shaft 26. This is utilized for adjusting the extent of engagement of the rollers when the cam 32 is at maximum displacement.
  • the second adjustment by means of the handle 46 and worm 45, displaces the disc 40 around the shaft 33.
  • a web coating machine of the type employing a web carrying roller and an applicator roller rotating in a pan of coating solution, said rollers being disposed in axially parallel relationship and adapted to rotate in a close proximity when in coating position, maintaining therebetween a body of the coating substance in the form of a bead and adapted to engage in a wetting position to form said head, the improvement comprising apparatus for initiating the forming and maintaining of said bead comprising a platform upon which said pan and said applicator roller are mounted, a frame, means for movably supporting said platform in said frame, means for lifting and lowering said platform in one cycle of operation including a cam and a cam follower disposed to engage said cam, the relative positions of said cam and cam follower determining the wetting and coating positions of said rollers and manually operable rotary means for displacing said cam and cam follower into relative positions effecting said wetting and coating positions upon one complete revolution of said rotary means,
  • said rotary means comprising a shaft upon which said cam is mounted, a crank attached directly to said shaft for rotating thesame and means for locking the crank and shaft against rotation when the rollers are in coating position.
  • a web coating machine as recited in claim 1 including means for adjusting the position of the locking means relative to the shaft to predetermine the coating position of said rollers.
  • a web coating machine of the type employing a web carrying roller and an applicator roller rotating in a pan of coating solution, said rollers being disposed in axially parallel relationship and adapted to rotate in close proximity when in coating position, maintaining therebetween a body of the coating substance in the form of a bead and adapted to engage in a wetting position to form said bead, the improvement comprising apparatus for initiating the forming and maintaining of said bead comprising a platform upon which said pan and said applicator roller are mounted, a frame, pivot means for swingably supporting said platform in said frame, means for lifting and lowering said platform in one cycle of operation including a shaft rotatably journalled in said frame, a cam secured to said shaft and a cam follower attached to said platform and disposed to engage said cam, the relative positions of said cam and cam follower determining the wetting and coating positions of said rollers, a crank directly attached to said shaft for rotating said shaft, thereby displacing said cam and cam follower into relative positions effecting said wetting and
  • a web coating machine of the type employing a web carrying roller and an applicator roller rotating in apan of coating solution, said rollers being disposed in axially parallel relationship and adapted to rotate in close proximity when in coating position, maintaining therebetween a body of the coating substance in the form of a bead and adapted to engage in a wetting position to form said bead, apparatus for initiating the forming and maintaining of said head comprising a platform upon which said pan and said applicator roller are mounted, a frame, pivot means for swingably supporting said platform in said frame, means for lifting and lowering said platform in one cycle of operation including a shaft rotatably journalled in said frame, a cam secured to said shaft and a cam follower attached to said platform and disposed to engage said cam, the relative positions of said cam and cam follower determining the wetting and coating positions of said rollers and a crank for rotating said shaft, thereby displacing said cam and cam follower into relative positions sequentially efiecting said wetting and coating positions upon one complete revolution

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Coating Apparatus (AREA)
US668523A 1957-06-27 1957-06-27 Roller positioning apparatus for coating machines Expired - Lifetime US2915038A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
BE567979D BE567979A (US07166745-20070123-C00061.png) 1957-06-27
US668523A US2915038A (en) 1957-06-27 1957-06-27 Roller positioning apparatus for coating machines
DEG24762A DE1081762B (de) 1957-06-27 1958-06-16 Vorrichtung zum Auftragen viskoser Massen auf photographische Schichttraeger

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US668523A US2915038A (en) 1957-06-27 1957-06-27 Roller positioning apparatus for coating machines

Publications (1)

Publication Number Publication Date
US2915038A true US2915038A (en) 1959-12-01

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Application Number Title Priority Date Filing Date
US668523A Expired - Lifetime US2915038A (en) 1957-06-27 1957-06-27 Roller positioning apparatus for coating machines

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US (1) US2915038A (US07166745-20070123-C00061.png)
BE (1) BE567979A (US07166745-20070123-C00061.png)
DE (1) DE1081762B (US07166745-20070123-C00061.png)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3331592A (en) * 1965-02-04 1967-07-18 Xerox Corp Xerographic fusing apparatus
US3339523A (en) * 1962-10-15 1967-09-05 Joseph J Herrera Film striping apparatus
US3747561A (en) * 1971-06-23 1973-07-24 Smithe Machine Co Inc F L Adhesive application mechanism for envelope processing machinery
US3800743A (en) * 1969-11-14 1974-04-02 Xerox Corp Materials application apparatus
US4015453A (en) * 1976-02-26 1977-04-05 West Point Pepperell, Inc. Dye pan mounting for apparatus for multi-color dyeing of yarn ends
US4582019A (en) * 1983-01-26 1986-04-15 Baerschneider Luedwig Adhesive applicator for wallpaper
US4664058A (en) * 1985-10-25 1987-05-12 International Paper Company Coating roll surface configuration for applying liquid sterilant to a moving web

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2253060A (en) * 1939-12-16 1941-08-19 Eastman Kodak Co Coating apparatus
US2589966A (en) * 1948-01-15 1952-03-18 S & S Corrugated Paper Mach Adhesive applicator for corrugating machines
US2681294A (en) * 1951-08-23 1954-06-15 Eastman Kodak Co Method of coating strip material
US2775954A (en) * 1955-12-14 1957-01-01 Eastman Kodak Co Roller coating apparatus

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2253060A (en) * 1939-12-16 1941-08-19 Eastman Kodak Co Coating apparatus
US2589966A (en) * 1948-01-15 1952-03-18 S & S Corrugated Paper Mach Adhesive applicator for corrugating machines
US2681294A (en) * 1951-08-23 1954-06-15 Eastman Kodak Co Method of coating strip material
US2775954A (en) * 1955-12-14 1957-01-01 Eastman Kodak Co Roller coating apparatus

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3339523A (en) * 1962-10-15 1967-09-05 Joseph J Herrera Film striping apparatus
US3331592A (en) * 1965-02-04 1967-07-18 Xerox Corp Xerographic fusing apparatus
US3800743A (en) * 1969-11-14 1974-04-02 Xerox Corp Materials application apparatus
US3747561A (en) * 1971-06-23 1973-07-24 Smithe Machine Co Inc F L Adhesive application mechanism for envelope processing machinery
US4015453A (en) * 1976-02-26 1977-04-05 West Point Pepperell, Inc. Dye pan mounting for apparatus for multi-color dyeing of yarn ends
US4582019A (en) * 1983-01-26 1986-04-15 Baerschneider Luedwig Adhesive applicator for wallpaper
US4664058A (en) * 1985-10-25 1987-05-12 International Paper Company Coating roll surface configuration for applying liquid sterilant to a moving web

Also Published As

Publication number Publication date
BE567979A (US07166745-20070123-C00061.png)
DE1081762B (de) 1960-05-12

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