US3606861A - Continuous roll coater - Google Patents

Continuous roll coater Download PDF

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Publication number
US3606861A
US3606861A US834749A US3606861DA US3606861A US 3606861 A US3606861 A US 3606861A US 834749 A US834749 A US 834749A US 3606861D A US3606861D A US 3606861DA US 3606861 A US3606861 A US 3606861A
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US
United States
Prior art keywords
coater
roll
web
turret
backing
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
US834749A
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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 US3606861A publication Critical patent/US3606861A/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
    • D21H23/52—Addition to the formed paper by contacting paper with a device carrying the material
    • D21H23/56—Rolls
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C1/00—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating
    • B05C1/04—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length
    • B05C1/08—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length using a roller or other rotating member which contacts the work along a generating line
    • B05C1/0826—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length using a roller or other rotating member which contacts the work along a generating line the work being a web or sheets
    • B05C1/083—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length using a roller or other rotating member which contacts the work along a generating line the work being a web or sheets being passed between the coating roller and one or more backing rollers
    • 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
    • D21H5/0025—Processes or apparatus specially adapted for applying liquids or other fluent materials to finished paper or board, e.g. impregnating, coating by contact with a device carrying the treating material
    • D21H5/003—Processes or apparatus specially adapted for applying liquids or other fluent materials to finished paper or board, e.g. impregnating, coating by contact with a device carrying the treating material with a roller

Definitions

  • the invention is exemplified by a gravure roll coater which offers the industry for the first time a coating unit for continuous operation.
  • the machine eliminates the stoppages usually necessary for changing the backing rolls for diiferent web widths, change of gravure rolls for different coating weights, or changeover to other coating media.
  • machines which are equipped with flying splice unwinds and rewinds can operate continuously. Therefore, small orders with a relatively short running period of the machine will be as economical as large orders.
  • FIG. 1 is an end elevation view of the coater, depicted essentially schematically;
  • FIG. 2 is a fragmentary side elevational view of the inventive coater
  • FIGS. 36 are views of the central portion of FIG. 2 but with the elements thereof in different stages of operation.
  • the coating and web handling rolls are supported by vertical housing members as at and 11 which are interconnected by rails (not shown).
  • the frames contain all of the mechanical, electrical and hydraulic construction ele ments.
  • the coater When used with a fountainless gravure roll coating system, the coater has a very compact construction. Web threading to and through the coating unit is easy and the coater is accessible from both sides.
  • the drive (provided within the housing 12) is through a longitudinal shaft with interconnected PIV fine adjustment gears.
  • the drive can be used for the upper as well as the lower part of the coater and can be switched over during operation. Alternatively, the machine can also be driven through several separate motors.
  • the coating unit is then driven through a direct current motor. This motor can be used to drive either the upper or lower coating unit part and can be electrically switched over during operation. During the period that the coating unit is changed over, cleaned or during the machine stoppage, separate oil motors drive the coating rolls at a slow speed.
  • the machine is seen in operation relative to a web W which enters at the lower left and exits at the upper left through a dryer 13.
  • the first gravure coater is designated generally by the numeral 17 and includes a coating roll 18 operably associated with a suitable doctor 19.
  • the roll 18 is suitably journaled within the frames 10 and 11 and for the backing rolls (when used in the configuration illustrated in FIG. 3), the machine is equipped with a turret United States Patent O Patented Sept. 21, 1971 schematically represented as at 20.
  • the turret 20 carries two backing rolls 21 and 22.
  • the lower coater 17 is inoperative.
  • a detour roll mechanism generally designated 23 is next encountered by the web, the detour mechanism 23 including rolls 24 and 25'.
  • An upper coater generally designated 26 is next encountered, this including a gravure roll 27 with the usual doctor 28 and this is seen to be in pressure engagement with a backing roll 29.
  • the backing roll 29 and a replacement backing roll 30 are provided as part of the upper turret 31 (also depicted schematically).
  • FIG. 2 corresponds essentially to that depicted in FIG. 6.
  • the alternate arrangement is seen in FIG. 3 where the lower coater 17 is operational to coat the web W.
  • the first step involves translating, i.e., moving laterally the turret 20 from the position of FIG. 3 to that of FIG. 4.
  • the detour mechanism 23 is changed from the FIG. 4 configuration to that seen in FIG. 5.
  • the upper turret 31 is translated from the FIG. 5 condition to that seen in FIG. 6.
  • the other coater is employed as well.
  • the lower coating unit 17 is seen to be in operation.
  • the upper coating unit 26 Before changing to a new coating weight with the same or a new coating medium, the upper coating unit 26 has to be prepared. If necessary, the gravure roll installed will be changed for another one. By using the 180 turning method, a new backing roll 29 is installed for the required web width and put into position. This is done while the lower part of the coater is in operation. A short time before using the upper coating unit 26, the lacquer pumping system is engaged (provided as part of the unit 12) and the gravure roll 27 is driven by means of a servo drive motor (also provided as part of the unit 12). The upper coater 26 is then ready for operation.
  • the machine speed is reduced.
  • the backing roll 22 of the lower coater 17 is withdrawn (see FIG. 4), and a gravure roll 28 associated with the upper coater 26 is switched from the servo drive to the main drive.
  • the lower coater 17 is now driven by means of another servo motor (also provided within the unit 12).
  • the detour turret 23 is rotated in counterclockwise direction against a fixed stop to bring about the arrangement depicted in FIG. 5.
  • the detour unit 23 changes the degree of wrap employed in the upper coater 26, providing more support for the Web and avoiding wrinkling through the establishment of a good infeed nip roll arrangement.
  • the backing roll 29 is brought into working position against the web and gravure roll 28. The machines speed is then resumed. While the upper coater 26 is operating, the
  • lower coater 17 can be cleaned. After cleaning, the servo motor is disengaged and the lower coater 17 can then be prepared for future job changes. The changeover process can be reversed in a similar manner as the next operation dictates.
  • An apparatus for applying a liquid medium to a traveling web comprising a frame, a fluid medium applicator roll journaled for rotation in said frame, means operatively associated with said frame for rotating said applicator roll, means for traveling said web in contact with said applicator roll, a turret mounted on said frame for selective rotation about an axis parallel to the axis of said said applicator roll, said turret rotatably supporting a pair of backing rolls each having an axis parallel to said applicator roll axis, means operably associated with said turret to rotate the same and thereby selectively position the backing rolls thereof to confine said web between one backing roll and said applicator roll whereby a backing roll can be changed to accommodate a different width web without stopping the web.

Landscapes

  • Coating Apparatus (AREA)
  • Inking, Control Or Cleaning Of Printing Machines (AREA)
US834749A 1969-06-19 1969-06-19 Continuous roll coater Expired - Lifetime US3606861A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US83474969A 1969-06-19 1969-06-19

Publications (1)

Publication Number Publication Date
US3606861A true US3606861A (en) 1971-09-21

Family

ID=25267706

Family Applications (1)

Application Number Title Priority Date Filing Date
US834749A Expired - Lifetime US3606861A (en) 1969-06-19 1969-06-19 Continuous roll coater

Country Status (9)

Country Link
US (1) US3606861A (ja)
JP (1) JPS501169B1 (ja)
AT (1) AT299683B (ja)
BE (1) BE752176A (ja)
CH (1) CH523721A (ja)
DE (1) DE2027597B2 (ja)
FR (1) FR2052789A5 (ja)
GB (1) GB1300777A (ja)
SE (1) SE373066B (ja)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4250207A (en) * 1978-05-29 1981-02-10 Nippon Steel Corporation Method for applying coating of molten metals
US20020026895A1 (en) * 1995-09-19 2002-03-07 Fuji Photo Film Co., Ltd. Coating apparatus for a traveling web

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4250207A (en) * 1978-05-29 1981-02-10 Nippon Steel Corporation Method for applying coating of molten metals
US4365583A (en) * 1978-05-29 1982-12-28 Nippon Steel Corporation Apparatus for applying coating of molten metals
US20020026895A1 (en) * 1995-09-19 2002-03-07 Fuji Photo Film Co., Ltd. Coating apparatus for a traveling web
US7267722B2 (en) * 1995-09-19 2007-09-11 Fujifilm Corporation Coating apparatus for a traveling web

Also Published As

Publication number Publication date
DE2027597A1 (de) 1970-12-23
CH523721A (fr) 1972-06-15
GB1300777A (en) 1972-12-20
AT299683B (de) 1972-06-26
FR2052789A5 (ja) 1971-04-09
DE2027597B2 (de) 1974-06-27
BE752176A (fr) 1970-12-01
SE373066B (ja) 1975-01-27
JPS501169B1 (ja) 1975-01-16

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