US2209756A - Horizontal press roll assembly - Google Patents

Horizontal press roll assembly Download PDF

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Publication number
US2209756A
US2209756A US80253A US8025336A US2209756A US 2209756 A US2209756 A US 2209756A US 80253 A US80253 A US 80253A US 8025336 A US8025336 A US 8025336A US 2209756 A US2209756 A US 2209756A
Authority
US
United States
Prior art keywords
roll
web
rolls
suction
press
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
US80253A
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English (en)
Inventor
Earl E Berry
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.)
Beloit Iron Works Inc
Original Assignee
Beloit Iron Works Inc
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 Beloit Iron Works Inc filed Critical Beloit Iron Works Inc
Priority to US80253A priority Critical patent/US2209756A/en
Priority to GB21578/36A priority patent/GB482819A/en
Priority to DEB175128D priority patent/DE673401C/de
Priority to AT157586D priority patent/AT157586B/de
Application granted granted Critical
Publication of US2209756A publication Critical patent/US2209756A/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
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F3/00—Press section of machines for making continuous webs of paper
    • D21F3/02—Wet presses
    • D21F3/04—Arrangements thereof
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F3/00—Press section of machines for making continuous webs of paper
    • D21F3/02—Wet presses
    • D21F3/06—Means for regulating the pressure
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F5/00—Dryer section of machines for making continuous webs of paper
    • D21F5/02—Drying on cylinders

Definitions

  • This invention relates to press roll assemblies for paper machines.
  • this invention relates to press roll assemblies having the rolls therein mounted in horizontal relation whereby a single center roll performs the functions of two top press rolls in heretofore known assemblies.
  • Paper as it comes from the web forming part is wet and soggy and is passed through a press section of the machine for the extraction of large amounts of water therefrom by pressure and suction.
  • the press roll sections one or more suction equipped with a top roll in vertical alignment above the suction or of a paper machine heretofore used contained or plain press rolls each plain press roll.
  • the present invention and provides for the and/or plain presses in horizontal invention section of According to this from the web forming machine is carried by a of the felt.
  • the web then passes .nip between a center roll where additional web.
  • the web next between a second suction or plain and the center roll for the removal of additional then passes through similar press and suction roll sections or directly between the second press roll and roll, it can fall out of opens downwardly.
  • Preferred structure for the horizontal press roll sections of this invention includes a pivotal mounting of the end rolls relative to the stabut rotatable center roll.
  • Mechanism is provided for carefully adjusting the pressure between the end rolls and the center roll and for tilting the end rolls away from the roll.
  • Drive mechanisms are also proeither the center roll or both of the end rolls of each press section from the 55 same motor driving the couch roll of the web tionarily mounted center I vided to drive dispenses with top rolls mounting of the suction whereby a single center roll replaces at least two of the heretofore necessary top rolls.
  • the additional amount of water is removed from the web when it passes through the nip the nip because the nip 10 Claims. (CI. 92-49) forming' section to insure a uniform speed of operation.
  • Another object of this invention is to reduce the space occupied by the press section of a paper machine.
  • a further object of this invention is to provide a press roll assembly for paper machines wherein end rollers separate by gravity from a center roller.
  • a further object of this invention is to provide a press roll assembly for paper machines that can be driven directly with the couch roll of the web forming section of the paper machine.
  • Another object of this invention is to increase the life of felts for conveying webs from the web forming section of a paper machine through the press roll section of the machine.
  • a further object of this invention is to eliminate the breaks of paper which frequently occur between the first and second presses of a paper machine.
  • Figure 1 is a diagrammatic side elevational view of a press roll assembly according to this invention disposed between the couch roll end of the web forming section and the drying section of a paper machine;
  • Figure 2 is a diagrammatic side elevational view similar to Figure 1 but illustrating a modified form of press roll assembly
  • Figure 3 is a side elevational view of a press roll assembly according to this invention.
  • a furtherobject of this invention is to re- 5 end roll drive mechanism for press roll assemblies of this invention.
  • the reference numeral III indicates the forming wire of a paper machine of the Fourdrinier type having a web W thereon.
  • the forming wire is trained around a suction couch roll H having a suction head l2 therein for removing water through the wire from the web.
  • the web W after passing over the suction area of the couch roll II is trained under a guide roll l3 and onto a conveyor felt l4 of a press roll assembly according to this invention.
  • the felt I4 is disposed around guide rolls I 5 and I6 and over a suction roll I! having-a suction head l8 therein adjacent the nip defined by the roll I!
  • the felt 28 is trained over a guide roll 22 mounted between the center roll I9 and the plain press roll 2la.
  • the felt 26 in the structure shown in tacts the web W on the center roll l9 as the web passes through the nip of the rolls I9 and 2la where additional water is squeezed from the web.
  • the felt 20 follows around the plain press roll 2la. while the web W is trained over a guide roll 23 mounted above the plain press roll 2m and is then directed around drier drums 24.
  • the center roll i9 is rotatably mounted on a base 25 which also supports a shaft or a pair of shafts 26 for pivotally mounting supports such as 21 for the suction roll l7.
  • the plain press roll 2la is pivotally mounted on a separate base 28 spaced from the base 25.
  • a single base 29 supports both the center roll I9 and the end suction rolls l1 and 2
  • the center roll is stationarily but rotatably mounted on the base 29 while the end rolls I I and 2
  • has a suction head 30 defining a suction area in advance of the nip of the center roll 19 and the suction roll 2!.
  • the felt 20 therefore contacts the suction area before the web W contacts the felt. In this manner the felt 29 can be dried by suction to render the same that when the felt and web the nip of the rolls i9 and 2
  • the suction area can extend into the nip of the rolls l9 and 2
  • the guide roll 22a of the structure shown in Figure 2 is mounted to the left of the suction roll 2
  • the web W then follows the Figure 1 therefore conber 56 which is more absorptive so trained around stretcher rolls 3
  • the web then follows around the center roll and through the nip of the center roll and either a suction or plain press roll where additional amounts of water are removed by pressure and/or suction.
  • a forming wire 40 carrying a wet soggy web W thereon is trained around a couch roll 4
  • the web W is then directed under a guide roll 43 into contact with a felt 44 as the web and felt pass over a guide roll 46 rotatably carried in supports such as 41 depending from bearing housings such as 48 for a suction roll 49 of the press base 55 of the assembly.
  • the passageway in the manifold supporting member 53 communicates with a flexible pipe or coupling 56 iFig. 5) for joining the suction head 5! of the suction roll 49 with a vacuum pump (not shown).
  • the other bearing housing 48 for the suction roll 49 is directly mounted on a supporting memgther main supporting member 55a of the assem- A catchall or pan 58 (Fig. 3) is mounted under the roll 49 for collecting water as it drips from the felt and roll.
  • This pan 58 is suitably sup ported on the supporting members 53 and 56.
  • a foot 59 is formed on the supporting member 53 to prevent the roll from being tilted away from the center roll beyond a desired amount.
  • a similar foot is provided. on the other supporting member 56.
  • the main supporting members 55 and 55a for pivotally supporting the roll 49 carry bearing housings 69 for rotatably supporting a center roll 6
  • the bearing housings have yoked arms 62 and 63 extending therefrom.
  • a second main supporting base 65 or a pair of such bases, is provided in spaced relation from A pan or catchall tray 13 is mounted under the pivoted as at 51 ( Figure 5) to the v roll 68 for receiving water squeezed from the nip.
  • the roll 68 as shown is of the plain type.
  • Each of the bearing housings 48 and 69 for the rolls 49 and 68 have upwardly extending ,arms 15 and 16 respectively with bifurcated ends 11 ( Figure 5) having notches 18 cut therein.
  • having pivot pins such as 19 extending therethrough ( Figure 4) for pivotally carrying the apertured ends 88 of rods 8
  • extends between the fingers of the bifurcated ends'11 of an arm 15 of a bearing housing 48 and through a boss member 82 which is slidable on the rod and has notched portions 83 fitting in the grooves 18 of the fingers of the bifurcated ends 11'.
  • extends through a gear housing 84 containing a geared member 86 rotatably mounted therein. This end of the rod 8
  • a small pinion gear 81 is mounted on a shaft 88 rotatably supported by the housing 84. The gear 81 meshes with the geared member and the shaft 88 is keyed to a hand wheel 89 to permit manual rotation of the gear 81.
  • a coiled spring 98 is disposed around the rod 8
  • the compression of the spring the bosses 82 against the bifurcated end 11, thus tending to move the roll 49 against the center roll 6
  • the amount of compression of the spring 98 is manually adjusted by rotation of the hand wheel 89.
  • the amount of compression of the spring can be measured by an'indicating device 9
  • the roll 49 can 'be tilted backward until the feet 59 of the supporting member 53 rest against the floor. In this open position the paper web W can be threaded through the press roll assembly or the assembly can be cleaned.
  • the plain press roll 68 carries an identical mechanism such as described in Figure 4. This mechanism is indicated generally by the reference numeral 94.
  • a wiper rides 0 top of the center roll 6
  • .a can act against the web W as it passes around the center roll 6
  • a can be positioned under the center roll6l as shown in Figure 3 or on top of the center roll if desired.
  • a marking roll will watermark the web and a smoothing roll will remove wire marks from the bottom of the web. Smoothing rolls are generally rubber covered with a comparatively soft rubber.
  • the web W upon leaving the forming wire 48 is carried by the felt 44 over the guide roll 46 and around the suction roll 49. It is then passed through the nip of the suction roll 49 and the center roll 6
  • the web W and felt 61 then pass through the nip of the center roll 6
  • the web W is then separated fron. the felt 61 and passed around the guide roll 91 into the drier section of the machine or through another press assembly.
  • the motor I88 is connected through flexible couplings
  • a pulley I84 at the other end of the motor drives a plurality of belts I85 which in turn drive a a shaft I81 which is coupled with the center roll 6
  • the center roll then drives both of the end rolls 49 and 68 by frictional contact therewith.
  • each press roll section can be driven instead of the center roll.
  • the motor I I8 is connected through flexible couplings III and 2 to the shaft I83 of the suction couch" roll 4
  • the other end of the motor is provided with a pulley I I3 having a therearound for plurality of belts II4 trained driving a second pulley
  • the shaft 6 has a pulley II1 keyed thereon with a plurality of belts I I8 trained therearound for driving another pulley I
  • the shaft H6 is coupled to a shaft I2I which shaft I2I, in turn, is coupled through a universal joint I22 to an intermediate shaft I23.
  • the shaft I23 is coupled through a second universal joint I24 to the drive shaft I25 of the suction roll 49 in the press roll assembly.
  • the shaft I28 driven by the pulley H9 is coupled to a shaft I26 which shaft in turn'is coupled through a universal joint I21 to an intermediate shaft I28.
  • the shaft I28 is coupled through a second universal joint I29 to the drive shaft I38 of a second suction roll 68a of the press roll assembly.
  • Universal joints I22, I24, I21 and I29 permit the suction rolls 49 and 68a to be tilted about 6, a single motor I88 is used to drive both the couch roll of the web forming' their pivot points without interfering with the driving of these rolls.
  • is a suction press roll whereas the roll 68 described in Figure 3 is a plain press'roll.
  • Figure 1 illustrates a press roll assembly in which the roll to the left of the center roll is a plain press roll while Figure 2 illustrates the roll to the left of the center roll to be a suction press roll.
  • a press roll assembly may contain apair of suction rolls or may contain one suction roll and one plain press roll.
  • a press roll assembly in which a single center roll serves the purpose of a pair of press rolls of either the plain or suction type.
  • the press rolls can be manually adjusted without effort to exert any desired pressure against the center roll and either the center roll or both of the press rolls
  • the center roll can be rubber covered, or can.
  • the side rolls can also be rubber covered.
  • the rollers do not need to be highly crowned since they are mounted in horizontal alignment and are not subjected to the bowing action occurring in vertical alignment of press rolls.
  • the felts used in the press roll assembly are not subjected to reverse bends and therefore have a much longer life. I
  • the horizontal press roll'assemblies of this invention can be placed closely adjacent the couch roll end of the web forming sections of paper machines as illustrated in Figures 1, 2 and eliminating the long draw of the wet web between the couch roll and the conventional press roll sections. This elimination of the long draw of the wet web contributes to an elimination of the stretching of the plastic web thereby producing a stronger sheet.
  • the sheet is carried a considerable distance by the felts after passing through the nips of the rolls. Since the felts carry large amounts of water after leaving the nips'of the rolls, the sheet carried thereon can reabsorb water therefrom. In the press roll assemblies of this invention the sheet does not contact the felts after leaving the nips of the rolls and cannot reabsorb water therefrom.
  • the press roll assemblies of this invention also produce drier sheets.
  • a web dewatering press roll assembly having a free draining nip allowing gravity drainage of water therefrom and not requiring crowning of the rolls to offset against vertical deflection thereof for maintaining uniform pressures throughout the lengths of the rolls
  • a web dewatering press roll assembly having a free drainingnip allowing gravity drainage of water therefrom and not requiring crowning of the rolls to offset against vertical deflection thereof for maintaining uniform nip pressures throughout the lengths of the nips therebetween, comprising a center roll, rolls on each sideof the center roll having their axes in horizontal alignment with the axis of the center roll, means urging the side rolls toward the center roll to center roll and with nips between the rolls, web to the assembly for one nip and up through the other nip and a suction device at the downward passage nip for removing water therefrom, said upward passage nip being free draining for gravity drainage of water away from the web.
  • a web dewatering press roll assembly having .a. free draining nip and not requiring crowning of the-rolls to offset against vertical deflection thereof for maintaining uniform nip pressures throughout the lengths of the nips therebetween having their axes in horizontal alignment, means urging the side rolls toward the center roll to create pressure between the rolls at the nips therebetween, guide rolls disposed beneath the assembly, a first felt looped around the first roll and a guide roll, a second felt looped around the third roll and a guide roll, means for supplying a wet web to the first felt for downward passage therewith through one nip so that said web may pass around the center roll and upwardly through the other nip with the exertpressure in the two means feeding a wet around the first roll of the.
  • a press roll assembly comprising a base,
  • a press roll assembly comprising a base, bearing supports extending upwardly from said base, a center roll rotatably carried at its ends on said supports, supporting structure on each side of the base, standards pivoted to said structure, bearing housings carried on said standards, side rclls rotatably carried at their ends in said housings, rods pivoted to said bearing supports for the center roll, arms extending from said bearing housings for the side rolls receiving the rods therethrough, springs, disposed around said rods between the arms and the ends of the rods, and means threaded on the ends of the rods for compressing the springs to swing the standards about their pivots and to urge the side rolls into peripheral pressure relation with opposite sides of the center roll with the axes of all three rolls in horizontal alignment.

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US80253A 1936-05-18 1936-05-18 Horizontal press roll assembly Expired - Lifetime US2209756A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
US80253A US2209756A (en) 1936-05-18 1936-05-18 Horizontal press roll assembly
GB21578/36A GB482819A (en) 1936-05-18 1936-08-05 Horizontal press roll assembly for paper making machines
DEB175128D DE673401C (de) 1936-05-18 1936-08-08 Dreiwalzensaugpresse fuer Papiermaschinen
AT157586D AT157586B (de) 1936-05-18 1937-05-07 Dreiwalzensaugpresse für Papiermaschinen.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US80253A US2209756A (en) 1936-05-18 1936-05-18 Horizontal press roll assembly

Publications (1)

Publication Number Publication Date
US2209756A true US2209756A (en) 1940-07-30

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US80253A Expired - Lifetime US2209756A (en) 1936-05-18 1936-05-18 Horizontal press roll assembly

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US (1) US2209756A (de)
AT (1) AT157586B (de)
DE (1) DE673401C (de)
GB (1) GB482819A (de)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2448295A (en) * 1942-09-01 1948-08-31 Pusey & Jones Corp Press arrangement
US2467502A (en) * 1945-05-23 1949-04-19 Gilbert J Scofield Cleaning apparatus
US2512648A (en) * 1945-05-05 1950-06-27 Beloit Iron Works Press roll assembly
US2638819A (en) * 1948-03-18 1953-05-19 Beloit Iron Works Diaphragm control for press roll assemblies
US2653522A (en) * 1947-09-10 1953-09-29 Beloit Iron Works Paper machine
US2686463A (en) * 1948-03-11 1954-08-17 Beloit Iron Works Automatic deckle edge separating press roll section
US2764917A (en) * 1952-11-18 1956-10-02 Nicholas J Niks Stock inlet for papermaking machine
US2828675A (en) * 1956-02-21 1958-04-01 Stewart E Seaman Method and apparatus for continuously forming a fibrous web from a liquid suspension and progressively removing liquid therefrom
US2882968A (en) * 1956-04-13 1959-04-21 Beloit Iron Works Air bleed press arrangement
US2907388A (en) * 1957-06-26 1959-10-06 Stewart E Seaman Apparatus for forming a fibrous web from a liquid suspension
US3041235A (en) * 1958-02-12 1962-06-26 Huyck Corp Papermaking machine
US3900364A (en) * 1972-05-08 1975-08-19 Beloit Corp Roll-out module for a papermaking press section
US20100032384A1 (en) * 2008-08-07 2010-02-11 William Harris Moss Method for improving belt press dewatering

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2448295A (en) * 1942-09-01 1948-08-31 Pusey & Jones Corp Press arrangement
US2512648A (en) * 1945-05-05 1950-06-27 Beloit Iron Works Press roll assembly
US2467502A (en) * 1945-05-23 1949-04-19 Gilbert J Scofield Cleaning apparatus
US2653522A (en) * 1947-09-10 1953-09-29 Beloit Iron Works Paper machine
US2686463A (en) * 1948-03-11 1954-08-17 Beloit Iron Works Automatic deckle edge separating press roll section
US2638819A (en) * 1948-03-18 1953-05-19 Beloit Iron Works Diaphragm control for press roll assemblies
US2764917A (en) * 1952-11-18 1956-10-02 Nicholas J Niks Stock inlet for papermaking machine
US2828675A (en) * 1956-02-21 1958-04-01 Stewart E Seaman Method and apparatus for continuously forming a fibrous web from a liquid suspension and progressively removing liquid therefrom
US2882968A (en) * 1956-04-13 1959-04-21 Beloit Iron Works Air bleed press arrangement
US2907388A (en) * 1957-06-26 1959-10-06 Stewart E Seaman Apparatus for forming a fibrous web from a liquid suspension
US3041235A (en) * 1958-02-12 1962-06-26 Huyck Corp Papermaking machine
US3900364A (en) * 1972-05-08 1975-08-19 Beloit Corp Roll-out module for a papermaking press section
US20100032384A1 (en) * 2008-08-07 2010-02-11 William Harris Moss Method for improving belt press dewatering
US7964105B2 (en) * 2008-08-07 2011-06-21 William Harris Moss Method for improving belt press dewatering

Also Published As

Publication number Publication date
DE673401C (de) 1939-03-23
AT157586B (de) 1939-12-27
GB482819A (en) 1938-04-05

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