US3364848A - Calender, especially for paper satinizing - Google Patents

Calender, especially for paper satinizing Download PDF

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Publication number
US3364848A
US3364848A US418824A US41882464A US3364848A US 3364848 A US3364848 A US 3364848A US 418824 A US418824 A US 418824A US 41882464 A US41882464 A US 41882464A US 3364848 A US3364848 A US 3364848A
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US
United States
Prior art keywords
pressure
calender
rollers
piston
hydraulic
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
US418824A
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English (en)
Inventor
Muller Gernot
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.)
Maschinenfabrik Joh Kleinewefers Sohne GmbH
Original Assignee
Joh Kleinewefers Sohne Maschin
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 Joh Kleinewefers Sohne Maschin filed Critical Joh Kleinewefers Sohne Maschin
Application granted granted Critical
Publication of US3364848A publication Critical patent/US3364848A/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
    • D21G—CALENDERS; ACCESSORIES FOR PAPER-MAKING MACHINES
    • D21G1/00—Calenders; Smoothing apparatus
    • D21G1/002—Opening or closing mechanisms; Regulating the pressure

Definitions

  • ABSTRACT OF THE DISQLUSURE Calender especially for satinizing paper in which a plurality of moveable rolls are arranged in superposed relation above a stationary roll with a hydraulic unit connected to each end of the uppermost roll, each unit having a downwardly acting larger surface and an upwardly acting smaller surface, and with fluid pressure means connected to said surfaces and with valve means being provided for exhausting the upper surface so that the hydraulic units can lift the rolls, or pressurizing both surfaces so the rolls are urged downwardly into pressure engagement with each other.
  • the present invention relates to a calender, especially for satinizing paper, and more specifically concerns hydraulic means used in connection therewith for exerting pressure on the calender rollers.
  • Still another drawback of the above-mentioned heretofore known arrangement consists in that it is not possible to exert different pressures upon both calender sides, as is sometimes desirable in practice.
  • a further object of the invention consists in the provision of a calender as set forth in the preceding paragraphs, which will automatically assure a synchronous movement of the ends of the respective calender roller.
  • a calender according to the present invention is characterized primarily in that individual hydraulic cylinder piston means are respectively provided for each calender side, while conduits and control means are so arranged and associated with said hydraulic cylinder piston means that each hydraulic cylinder piston means can be eifective for that side of the calender only to which the respective hydraulic cylinder piston system pertains.
  • the calender illustrated therein comprises a chilled cast roller 1, a plurality of elastic rollers 2 and chilled cast rollers 3 of considerably smaller diameter than roller 1.
  • a double-acting cylinder piston system each comprising a cylinder 4, a piston 5 reciprocably mounted in cylinder 4, and a connecting rod 5 having its upper end connected to piston 5 and having its lower end connected to the bearing means 2 for the uppermost roller 2.
  • piston 2 is a double-acting piston having a larger eifective top surface and a smaller effective bottom surface.
  • spindle 6 When it is desired to have the various rollers in disengagement and spaced as just described for a longer period of time, spindle 6 may be provided with additional nuts 9 spaced from each other, while a valve 8 is adapted selectively to be actuated so as to have a plunger 8' thereof engage the space between the nuts 9 to thereby hold spindle 6 in its uppermost position.
  • Nuts 7 are, of course, adjustable in conformity with the desired spacing.
  • the left-hand side of the drawing may represent the control arrangement for the left-hand side of the various rollers
  • the arrangement comprises a corresponding control arrangement for the right-hand side of the rollers, as shown in the drawing, and corresponding parts have been designated with the same reference numerals.
  • Hydraulic cylinder piston systems 4 are respectively hydraulically connected with hydraulic fluid sources I and II for producing and storing the respective desired hydraulic pressure.
  • Each of said hydraulic units comprises a pressure pump 16, a fluid pressure storing vessel 11, a pressure gauge 12 and a pressure fluid container 13.
  • pressure is conveyed to cylinder 4 through pressure conduits 14 and 15 and a hydraulic reversing valve 23 for the pressure above piston and a hydraulic reversing valve 21 for the pressure below piston 5.
  • both hydraulic units 20 and 21 are made effective so that the difierential pressure corresponding to the cross-section of the piston rod will be eflective upon the rollers.
  • the adjustment for the maximum hydraulic pressure is effected by actuation of position indicators in contact gauges 12 which are adapted to switch on and off the pressure pumps 10.
  • This 7 safety arrangement consists of an overflow conduit 22 with a check valve 24 interposed between the cylinder chambers above and below pressure piston 5.
  • This check valve 24 is so designed that the pressure in the pressure chamber above piston 5 is adapted to equalize through a choke 25 with the cylinder chamber below piston 5.
  • the hydraulic units have associated therewith an electric, hydraulic, or mechanical synchronizing arrangement in order to prevent one calender side from being litted or lowered faster than the other calender side in view of different conditions of friction, whereby a jamming of the roller'bearings may occur.
  • the said synchronizing device is designed as an electro-hydraulic synchronizing device which comprises two potentiometers 26 and 27 respectively connected to the bearin g means 2 for both sides of the uppermost roller 2.
  • the synchronizing device comprises a differential relay 28, which latter is adapted to open and close magnetic valves 29 and 36 provided in the pressure conduits 16 and 17 leading to the cylinder chambers above piston 5.
  • the differential relay is connected to a slide contact 26a, 27a cooperating with that part-of the potentiometer 26, 27 which is connected to the bearing means for the uppermost roller.
  • the last-but-one roller (when looking downwardly) on each side of the calender, has its bearing 2' provided with a preferably adjustable contact 31 which by engagement with a contact member 33 closes a circuit for a magnetic valve 31', 32 respectively when roller 2 adjacent roller 1 has been spaced from the latter by the desired distance, which means that the uppermost roller has reached its maximum height.
  • each hydraulic operating unit comprising a working piston connected to the remote roll and having a larger surface responsive to fluid pressure for moving the remote roll toward said stationary roll and also having a smaller surface opposed to said larger surface, substantially constant pressure fluid source means connected to each of said larger surfaces by a respective first conduit and to each of said smaller surfaces by a respective second conduit, a normally open electrically operable valve.
  • a differential switch having opposedelectrical operators and operable to energize the electrically operable valve in one of said first conduits when a certain one of the electrical operators becomes predominant over the other thereof, a rheostat in circuit with each of said operators, means connected to respective ends of said remote roll for adjusting respective ones of said rheostats as the remote roll is moved toward said stationary roll, and control means including valve means connecting said source means with the said larger and smaller surfaces of both of said hydraulic operating units and operable for supplying fluid under pressure to both of the said surfaces of each unit for pressing said rolls against each other or for exhausting the larger surfaces of both of the units for causing said rolls to be separated from each other.
  • a calender according to claim 1 in which said flui source means is connected to each of said larger surfaces by a respective first conduit and to each of said smaller surfaces by a respective second conduit, a normally open valve in each of said second conduits, an electric actuator for each of said valves, and means operable in responses to a predetermined separating movement of said rolls for energizing said actuators to interrupt the said separating movement.
  • a calender according to claim 1 in which bypass channel means are provided leading from each larger surface to the respective smaller surface and preventing fluid flow from the smaller surface to the larger surface while permitting fluid to flow slowly from the larger surface to the smaller surface.

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  • Paper (AREA)
US418824A 1963-12-18 1964-12-16 Calender, especially for paper satinizing Expired - Lifetime US3364848A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEK0051670 1963-12-18

Publications (1)

Publication Number Publication Date
US3364848A true US3364848A (en) 1968-01-23

Family

ID=7226080

Family Applications (1)

Application Number Title Priority Date Filing Date
US418824A Expired - Lifetime US3364848A (en) 1963-12-18 1964-12-16 Calender, especially for paper satinizing

Country Status (4)

Country Link
US (1) US3364848A (de)
AT (1) AT261385B (de)
GB (1) GB1040638A (de)
SE (1) SE301417B (de)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3436913A (en) * 1966-01-03 1969-04-08 Kleinewefers Soehne Maschf Control circuit for controlling the rollers of calenders
US3451331A (en) * 1967-03-01 1969-06-24 Westvaco Corp Hot roll supercalender
US3578766A (en) * 1966-04-04 1971-05-18 Spidem Ste Nle Variable pressure embossing machine
US3777656A (en) * 1972-02-17 1973-12-11 Bruderhaus Maschinen Gmbh Calender and method of operating the same
US3942434A (en) * 1973-04-04 1976-03-09 Kleinewefers Industrie-Companie Gmbh Device for adjusting the roller bight of superimposed rollers of a calender
US4290351A (en) * 1978-10-16 1981-09-22 Kleinewefers Gmbh Method and apparatus for rapidly separating the rolls of a calender
US4501197A (en) * 1983-10-19 1985-02-26 Beloit Corporation Supercalender edge nip relieving
US4510859A (en) * 1984-01-23 1985-04-16 Beloit Corporation Supercalender NIP relieving arrangement
US4890551A (en) * 1987-04-03 1990-01-02 Sulzer-Escher Wyss Gmbh Apparatus for guiding the rolls of an essentially vertical calender
US4967653A (en) * 1987-04-23 1990-11-06 Sulzer Escher Wyss Calender having displaceable bearing parts
CN104047202A (zh) * 2013-03-12 2014-09-17 丹东天和实业有限公司 一种电气动复合式压实辊机构

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1511062B1 (de) * 1966-08-18 1970-09-03 Peters Maschf Werner H K Wellpappenmaschine
US5226363A (en) * 1990-09-11 1993-07-13 The Langston Corporation Dual pressure preload system for maintaining a member

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE523866C (de) * 1930-02-19 1931-04-29 Kleinewefers Soehne J Mehrwalzenkalander
US2058352A (en) * 1932-09-02 1936-10-20 Beloit Iron Works Calender machine
DE665489C (de) * 1936-06-10 1938-09-27 C G Haubold Akt Ges Selbststeuernder OElantrieb fuer Walzwerke fuer Papier, Karton, Gewebe o. dgl.
US2267380A (en) * 1938-11-16 1941-12-23 Oilgear Co Hold-down system
US2332289A (en) * 1942-06-04 1943-10-19 Sperry Prod Inc Method and means for leveling rolling mills
US2343672A (en) * 1942-04-21 1944-03-07 Letourneau Inc Wire tensioning unit
CH270054A (de) * 1949-03-15 1950-08-15 Escher Wyss Ag Einrichtung an Papiermaschinen zum Regeln des Anpressdruckes mehrerer, an einen gemeinsamen Druckerzeuger angeschlossener Anpressvorrichtungen.
US2545921A (en) * 1947-07-02 1951-03-20 Beloit Iron Works Control mechanism for fluid motors

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE523866C (de) * 1930-02-19 1931-04-29 Kleinewefers Soehne J Mehrwalzenkalander
US2058352A (en) * 1932-09-02 1936-10-20 Beloit Iron Works Calender machine
DE665489C (de) * 1936-06-10 1938-09-27 C G Haubold Akt Ges Selbststeuernder OElantrieb fuer Walzwerke fuer Papier, Karton, Gewebe o. dgl.
US2267380A (en) * 1938-11-16 1941-12-23 Oilgear Co Hold-down system
US2343672A (en) * 1942-04-21 1944-03-07 Letourneau Inc Wire tensioning unit
US2332289A (en) * 1942-06-04 1943-10-19 Sperry Prod Inc Method and means for leveling rolling mills
US2545921A (en) * 1947-07-02 1951-03-20 Beloit Iron Works Control mechanism for fluid motors
CH270054A (de) * 1949-03-15 1950-08-15 Escher Wyss Ag Einrichtung an Papiermaschinen zum Regeln des Anpressdruckes mehrerer, an einen gemeinsamen Druckerzeuger angeschlossener Anpressvorrichtungen.

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3436913A (en) * 1966-01-03 1969-04-08 Kleinewefers Soehne Maschf Control circuit for controlling the rollers of calenders
US3578766A (en) * 1966-04-04 1971-05-18 Spidem Ste Nle Variable pressure embossing machine
US3451331A (en) * 1967-03-01 1969-06-24 Westvaco Corp Hot roll supercalender
US3777656A (en) * 1972-02-17 1973-12-11 Bruderhaus Maschinen Gmbh Calender and method of operating the same
US3942434A (en) * 1973-04-04 1976-03-09 Kleinewefers Industrie-Companie Gmbh Device for adjusting the roller bight of superimposed rollers of a calender
US4290351A (en) * 1978-10-16 1981-09-22 Kleinewefers Gmbh Method and apparatus for rapidly separating the rolls of a calender
US4501197A (en) * 1983-10-19 1985-02-26 Beloit Corporation Supercalender edge nip relieving
US4510859A (en) * 1984-01-23 1985-04-16 Beloit Corporation Supercalender NIP relieving arrangement
US4890551A (en) * 1987-04-03 1990-01-02 Sulzer-Escher Wyss Gmbh Apparatus for guiding the rolls of an essentially vertical calender
US4967653A (en) * 1987-04-23 1990-11-06 Sulzer Escher Wyss Calender having displaceable bearing parts
CN104047202A (zh) * 2013-03-12 2014-09-17 丹东天和实业有限公司 一种电气动复合式压实辊机构

Also Published As

Publication number Publication date
GB1040638A (en) 1966-09-01
AT261385B (de) 1968-04-25
SE301417B (de) 1968-06-04

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