US3610137A - Calender for paper and the like - Google Patents
Calender for paper and the like Download PDFInfo
- Publication number
- US3610137A US3610137A US778290A US3610137DA US3610137A US 3610137 A US3610137 A US 3610137A US 778290 A US778290 A US 778290A US 3610137D A US3610137D A US 3610137DA US 3610137 A US3610137 A US 3610137A
- Authority
- US
- United States
- Prior art keywords
- roll
- rolls
- calender
- center roll
- nip
- 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
Links
Images
Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21G—CALENDERS; ACCESSORIES FOR PAPER-MAKING MACHINES
- D21G1/00—Calenders; Smoothing apparatus
-
- 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
- a second center roll may have pressure nip cooperation with two of the controlled deflection rolls and may be engaged by a controlled deflection roll at its bottom in equally spaced relation with respect to the nips between the first mentioned center roll and the two bottom calender rolls of the series of calender rolls.
- Calenders for calendering paper conventionally comprise a bottom or king roll having a highly polished peripheral surface, where the calender is used for glossing treatment, and having a series of superposed calender rolls stacked on the bottom roll.
- the bottom roll is usually driven by power and at least one of the superposed calender rolls may be a controlled deflection roll, in which the deflection of the roll is controlled by fluid under pressure.
- the controlled deflection roll in many cases may be a driven roll while the other rolls in the calender stack are usually freely rotatable.
- I provide a calender stack having a low vibration level and eliminate the deflection problems by providing a small diameter center roll for high unit pressure and rotatable about a horizontal axis, and space a series of larger diameter calender rolls about the center calender roll, and provide pressure nip cooperation between said larger diameter calender rolls and said center roll at equal circumferentially spaced points, and control the nip pressure level by loading the top calender roll.
- a principal object of the present invention is to provide a calender stack of a more compact design than former calender stacks, by utilizing a small diame- 3,6 10,137 Patented Oct. 5, 1 971 ter center roll and space a series of larger diameter calender rolls about the center roll at equal circumferential spacings, to give equal nip pressures between the calender rolls and the small diameter center roll, and to thereby reduce vibration thereof.
- Another object of the invention is to reduce the deflection and vibration problems heretofore present in calender stacks, by the use of a small diameter center roll, and the spacing of larger diameter controlled deflection rolls about the center roll to give equal nip pressures, and by controlling the nip pressure level by loading the top roll of the controlled deflection rolls.
- Stillanother object of the invention is to provide a paper calender of an efficient and compact design having a low vibration level and utilizing a small diameter center roll and larger diameter controlled deflection rolls, the axes of which are spaced apart to provide a better calendering finish due to the diameter ratios between the small center roll and the large diameter controlled deflection rolls.
- FIG. 1 is a diagrammatic view schematically illustrating a calender constructed in accordance with the principles of the present invention.
- FIG. 2 is a diagrammatic view schematically illustrating a modified form in which the invention may be embodied.
- FIG. 1 of the drawing I have diagrammatically shown a calender 10 for paper and the like, comprising a center roll 11 of a relatively small diameter and a series of larger diameter calender rolls of the same diameter, including an upper roll 12 and two lower rolls 13, 13 having nip pressure cooperation with the center roll 11 at equal circumferential spacings, the centers of which calender rolls are shown in FIG. 1 as being spaced about the axis of the center roll 11, 120 apart.
- the center roll 11 may be a solid roll and is shown as being a small diameter roll and is supported for rotation about a horizontal axis and may be driven from a suitable source of power in a conventional manner (not shown).
- the roll 11 may have a plated surface, plated with chrome or nickel, to provide a highly polished surface where the stack is used for glossing treatment.
- the calender rolls 12 and 13, 13 may be controlled deflection rolls and may be driven by contact with a web W trained through the three equally spaced nips between the roll 12 and rolls 13, 13 and the center roll 11 and partially about the roll 12.
- the calender rolls 12 and 13, 13 are usually freely rotatable, but under certain conditions, one or more of said rolls may also be driven rolls.
- the rolls 12 and 13, 13 may be supported in a conventional manner and may be mounted for retractable movement from the center roll 11, to relieve the loads between said rolls and to accommodate the threading of the web W through the nips between said rolls.
- the rolls 12 and 13, 13 may also be externally loaded, if required.
- the supports and external load relieving loading means for the rolls 12 and 13, 13 form no part of the present invention and may be of various suitable forms, so need not herein be shown or described.
- the roll 12 is diagrammatically shown as having a pressure chamber 15 extending therealong, supplied with fluid under pressure through a fluid pressure line 16, under the control of suitable valve means (not shown), in a conventional manner.
- the pressure chamber 15 is a part of the fluid force transfer means and may form an elongated cylinder for a piston and pressure shoe (not shown) exerting pressure on the interior of the roll shell forming the roll 12, to control the deflection thereof and to load the top roll 12 and thereby control the nip pressure level.
- the chamber 15 may also be a type of chamber which is sealed to the interior of the roll shell (not shown) to control the deflection of the roll by the direct application of fluid force thereto as in the British patent publication to Wilsdon et al. No. 641,466.
- the loading of the pressure nip by the top roll 12 by controlling the deflection of said roll by fluid force transfer means is conventional, so need not herein be shown or described further.
- the rolls 13, 13 may have fluid force transfer chambers 17, 17 extending therealong within the shells of said rolls and supplied with fluid under pressure through pressure lines 19, 19 under the control of suitable valve means (not shown), to control the deflection of said rolls in a manner similar to which the deflection of the roll 12 is controlled, and to equalize the pressure in the pressure nips between said rolls and the center roll 11, where required.
- the rolls 13, 13, need not be controlled deflection rolls, but may be plain solid rolls, depending upon calendering conditions.
- a compact calender design has been provided having three calender nips spaced 120 apart, about the peripheral surface of the relatively small diameter center roll 11, in which the spacing of the larger diameter calender rolls about the center roll 11 gives equal nip pressures which may be controlled by loading the interior of the shell of the roll 12, and the equal spacing by the calender rolls 12 and 13, 13 about the center roll.
- the provision of equal nip pressures about the center roll thereby reduces vibration of the calender to a minimum, and also obviates all deflection problems in the center roll.
- the second center roll 20 may be similar to the small diameter center roll 11, and may be driven by power in a suitable manner where required, and has pressure nip cooperation with the bottom rolls 13, 13 and may be loaded by the calender roll 21, having nip pressure cooperation with the second center roll 20.
- the bottom calender roll 21 may be a controlled deflection roll and is diagrammatically shown as having a fluid force transfer chamber 22 extending therealong, centered relative to the nip between said bottom roll and the second center roll 20, and supplied with fluid under pressure through a pressure line 23, under the control of suitable valve means (not shown) in a manner similar to which the deflection of the rolls 12 and 13, 13 is controlled.
- the bottom roll 21 also may be supported in a conventional manner for movement toward and from the second center roll 20 to relieve the nip pressure loads between the rolls 20 and 21, and to separate the rolls to accommodate the threading of the web in the nip between said rolls, and may also be externally loaded.
- the second center roll 20 may also be mounted for adjustable movement toward and from the bottom controlled deflection rolls 13, 13 in cases where it is desired to relieve the nip pressures and to separate the rolls for rethreading.
- the supports for the second center roll 20 and bottom calender roll 21 may be of any well-known form and are no 4 part of the present invention, so need not herein be shown or described further.
- three calender nips are obtained in addition to the three calender nips obtained by the form of the invention shown in FIG. 1, by adding a second center roll 20 and the controlled deflection roll 21 having nip pressure engagement with the second center roll.
- the series of calender rolls comprise at least one controlled deflection roll
- the force transferring means is a fluid force transferring means extending along said controlled deflection roll for loading the nip between said controlled deflection roll and said center roll and to thereby control the nip pressure level between the three calender rolls and said center roll.
- the additional calender roll is a bottom roll
- the force transferring means is a fluid force transferring means in centered relation relative to 6 the nips between said calender rolls and said two cen- 3,364,848 1/ 1968 Muller 100-170 X ter rolls, and 3,365,774 1/1968 Kusters 100-162 X wherein fluid under pressure is supplied to said fluid 2,851,869 9/1958 Quoos et a1.
- 100170 X force transferring means to control deflection of said controlled deflection rolls and the pressure nips be- 5 FOREIGN PATENTS tween said rolls and said first and second center rolls. 501050 10/1966 Germany- References Cited EDWARD L. ROBERTS, Primary Examiner UNITED STATES PATENTS 10 Us. Cl. X.R- 3,230,867 1/1966 Nelson 100--170 X 100176 3,345,937 10/1967 Kusters et a1. 182 C
Landscapes
- Paper (AREA)
- Treatment Of Fiber Materials (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US77829068A | 1968-11-22 | 1968-11-22 |
Publications (1)
Publication Number | Publication Date |
---|---|
US3610137A true US3610137A (en) | 1971-10-05 |
Family
ID=25112846
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US778290A Expired - Lifetime US3610137A (en) | 1968-11-22 | 1968-11-22 | Calender for paper and the like |
Country Status (6)
Country | Link |
---|---|
US (1) | US3610137A (pt) |
BR (1) | BR6914333D0 (pt) |
DE (2) | DE6942129U (pt) |
FR (1) | FR2023872A1 (pt) |
GB (1) | GB1294358A (pt) |
SE (1) | SE363520B (pt) |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3905288A (en) * | 1972-12-22 | 1975-09-16 | Valmet Oy | Paper-finishing calenders |
US4000242A (en) * | 1972-07-26 | 1976-12-28 | Crown Zellerbach Corporation | Web material treating system including an inflatable platen roller |
US4131063A (en) * | 1976-10-19 | 1978-12-26 | Oy Wartsila Ab | Calender |
US4194446A (en) * | 1976-08-20 | 1980-03-25 | Valmet 04 | Rolls, such as filled calender rolls, having deflection compensation |
US4211165A (en) * | 1977-11-22 | 1980-07-08 | Bruderhaus Maschinen Gmbh | Apparatus for the compressive handling of a strip of material |
US4324820A (en) * | 1980-07-18 | 1982-04-13 | St. Regis Paper Company | Method and apparatus for coating a paper web |
US20050061166A1 (en) * | 2003-09-19 | 2005-03-24 | Eduard Kusters Maschinenfabrik Gmbh & Co. Kg | Calender |
EP1549799A1 (en) * | 2002-09-10 | 2005-07-06 | Fibermark, Inc. | Glazed paper webs |
WO2013013994A1 (de) * | 2011-07-28 | 2013-01-31 | Andritz Küsters Gmbh | Kalander |
CN108316048A (zh) * | 2018-03-05 | 2018-07-24 | 博路威机械江苏有限公司 | Y形双压区挠度可控辊压光机 |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FI58801C (fi) * | 1976-06-17 | 1981-04-10 | Valmet Oy | Till en pappersmaskin hoerande sk superkalander |
DE3027420C2 (de) * | 1980-07-19 | 1984-09-20 | Willy Dipl.-Ing. 6100 Darmstadt Heckers | Vorrichtung zur kontinuierlichen Behandlung einer Warenbahn aus Papier, Textilien oder Kunststoff |
DE10157694B4 (de) * | 2001-11-24 | 2007-04-12 | Voith Patent Gmbh | Glättzylinderanordnung |
CN111114123B (zh) * | 2020-01-16 | 2021-05-18 | 浙江汇诚通用印务有限公司 | 一种纸张的上光压光工艺 |
-
1968
- 1968-11-22 US US778290A patent/US3610137A/en not_active Expired - Lifetime
-
1969
- 1969-10-15 GB GB50746/69A patent/GB1294358A/en not_active Expired
- 1969-10-29 DE DE6942129U patent/DE6942129U/de not_active Expired
- 1969-10-29 DE DE19691954524 patent/DE1954524A1/de active Pending
- 1969-11-19 FR FR6939708A patent/FR2023872A1/fr not_active Withdrawn
- 1969-11-19 BR BR214333/69A patent/BR6914333D0/pt unknown
- 1969-11-21 SE SE16031/69A patent/SE363520B/xx unknown
Cited By (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4000242A (en) * | 1972-07-26 | 1976-12-28 | Crown Zellerbach Corporation | Web material treating system including an inflatable platen roller |
US3905288A (en) * | 1972-12-22 | 1975-09-16 | Valmet Oy | Paper-finishing calenders |
US4194446A (en) * | 1976-08-20 | 1980-03-25 | Valmet 04 | Rolls, such as filled calender rolls, having deflection compensation |
US4131063A (en) * | 1976-10-19 | 1978-12-26 | Oy Wartsila Ab | Calender |
US4211165A (en) * | 1977-11-22 | 1980-07-08 | Bruderhaus Maschinen Gmbh | Apparatus for the compressive handling of a strip of material |
US4324820A (en) * | 1980-07-18 | 1982-04-13 | St. Regis Paper Company | Method and apparatus for coating a paper web |
US20060096728A1 (en) * | 2002-09-10 | 2006-05-11 | Fibermark, Inc. | Glazed paper webs |
EP1549799A1 (en) * | 2002-09-10 | 2005-07-06 | Fibermark, Inc. | Glazed paper webs |
EP1549799A4 (en) * | 2002-09-10 | 2005-11-09 | Fibermark Inc | PLACED PAPER WEBS |
US20050061166A1 (en) * | 2003-09-19 | 2005-03-24 | Eduard Kusters Maschinenfabrik Gmbh & Co. Kg | Calender |
WO2013013994A1 (de) * | 2011-07-28 | 2013-01-31 | Andritz Küsters Gmbh | Kalander |
CN103842587A (zh) * | 2011-07-28 | 2014-06-04 | 安德里茨库斯特斯有限公司 | 砑光机 |
EP2913435A1 (de) * | 2011-07-28 | 2015-09-02 | Andritz Küsters GmbH | Kalander |
CN103842587B (zh) * | 2011-07-28 | 2017-02-15 | 安德里茨库斯特斯有限公司 | 砑光机 |
CN108316048A (zh) * | 2018-03-05 | 2018-07-24 | 博路威机械江苏有限公司 | Y形双压区挠度可控辊压光机 |
Also Published As
Publication number | Publication date |
---|---|
SE363520B (pt) | 1974-01-21 |
DE1954524A1 (de) | 1970-06-11 |
BR6914333D0 (pt) | 1973-01-09 |
DE6942129U (de) | 1971-12-02 |
FR2023872A1 (pt) | 1970-08-21 |
GB1294358A (en) | 1972-10-25 |
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