US3885901A - Continuous prepress for fiberboard plant - Google Patents

Continuous prepress for fiberboard plant Download PDF

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Publication number
US3885901A
US3885901A US457626A US45762674A US3885901A US 3885901 A US3885901 A US 3885901A US 457626 A US457626 A US 457626A US 45762674 A US45762674 A US 45762674A US 3885901 A US3885901 A US 3885901A
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US
United States
Prior art keywords
rollers
beams
transverse
longitudinal
pair
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
US457626A
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English (en)
Inventor
Wolfgang Reiners
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.)
Siempelkamp Giesserei KG
G Siempelkamp GmbH and Co KG
Original Assignee
Siempelkamp Giesserei KG
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 claimed from DE19732316781 external-priority patent/DE2316781C3/de
Application filed by Siempelkamp Giesserei KG filed Critical Siempelkamp Giesserei KG
Application granted granted Critical
Publication of US3885901A publication Critical patent/US3885901A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B5/00—Presses characterised by the use of pressing means other than those mentioned in the preceding groups
    • B30B5/04—Presses characterised by the use of pressing means other than those mentioned in the preceding groups wherein the pressing means is in the form of an endless band
    • B30B5/06—Presses characterised by the use of pressing means other than those mentioned in the preceding groups wherein the pressing means is in the form of an endless band co-operating with another endless band

Definitions

  • ABSTRACT A prepress for a fiberboard plant has a plurality of upper rollers spaced above a plurality of lower rollers.
  • the lower rollers are fixed in a rigid support frame and the upper rollers are fixed by pairs in respective upper support frames each comprising a pair of longitudinal beams embracing two rollers and a pair of transverse beams bridging the longitudinal beams and each adjacent one of the rollers.
  • Each upper roller is journaled at one end in one of the longitudinal beams in a self-aligning bearing permitting transverse displacement of the roller relative to that longitudinal beam and at its other end in a conventional selfaligning bearing.
  • Each transverse beam has one end fixed to one of the longitudinal beams and another end secured by means of a ball joint to the other longitudinal beam.
  • a plurality of hydraulic cylinders each have one end secured to the support of the lower rollers and another end secured to an insert fitted within the end of a transverse beam.
  • the present invention relates to a band press. More particularly this invention relates to a prepress used for the compression of a mass of coherent fibers or the like to a dense band.
  • One type of prepress well known in the art has at least two longitudinally spaced upper rollers and at least two longitudinally spaced lower rollers, with pressing bands stretched over these rollers.
  • the conveyor belt runs between the two bands and the rollers exert compressive force on the mass of fibers carried on the conveyor belt. In this manner the thickness of the mass of fibers is reduced considerably and heat is usually applied so as to activate a binder mixed with the fibers and thereby form the coherent mats.
  • Yet another object is the provision of an improved frame for carrying the rollers of a band-type prepress which overcomes the above given disadvantages.
  • a prepress of the above-described general type that is having a pair of longitudinally and horizontally spaced upper rollers and a pair of longitudinally horizontally spaced lower rollers with an upper band spanned around the upper rollers and a lower band spanned around the lower rollers wherein at least one of the pairs of rollers, generally the upper pair is mounted between a pair of longitudinally extending and generally horizontal beams that embrace this upper pair. At least two transversely extending beams interconnect the longitudinally extending beams so as to form a frame.
  • a selfaligning bearing is provided at each end of each of the upper rollers to journal it in the respective longitudinal beams, and one of the bearings of each roller is arranged so as to permit limited transverse relative displacement between the respective roller and the respective longitudinal beam.
  • the transverse beams each have one end rigidly fixed to one of the longitudinal beams and another end connected to the other longitudinal beam by means of a ball joint.
  • a plurality of longitudinally based extensible elements, such as hydraulic cylinders, are engaged between the support in which the lower rolls are journaled and the frame carrying the upper rollers.
  • the transverse beams are hollow and have ends each receiving an outwardly projecting insert, the one insert projecting through the end rigidly connected with one longitudinal beam and the other insert projecting through the ball joint securing it to the other longitudinal beam.
  • the hydraulic jacks serving to adjust the press are connected to these inserts, so that the force is transmitted from the transverse beams to the longitudinal beams and thence to the rollers, giving an extremely advantageous force distribution.
  • the transverse beams are arranged alternately, that is with the ball joint of one being being secured in one longitudinal beam and the ball joint of the neighboring transverse beam being carried in the other longitudinal beam, so as to permit maximum possible distortion of the frame.
  • transverse stabilizing elements are provided in pairs to either side of each transverse beam each having one end connected adjacent the ball joint of the respective transverse beam and another end connected to the op posite longitudinal beam, with the two stressing elements at each transverse beam forming a'V opening outwardly towards the longitudinal beam corresponding to the rigidly fixed end of the respective transverse beam.
  • FIG. 1 is a side elevational view of a press according to the present invention
  • FIG. 2 is an end view partly in section and taken in the direction of arrow II FIG. 1;
  • FIG. 3 is a perspective view of the upper frame carrying two of the upper rollers.
  • FIGS. 4, 5 and 6 are sections taken along lines IVIV, VV, and VI-Vl of FIG. 3.
  • the press according to the present invention has a lower roller assembly 1 and an upper roller assembly 2 respectively comprising leading rollers 3' and 3, trailing rollers 4' and 4 and central rollers 8' and 8.
  • Band 6' is spanned over the three lower rollers 3', 8 and 4' as well as over support rollers 5' carried on beams 22' and over various tension rollers 5' carried on beams 22' and over various tension rollers 23.
  • Another band 6 is spanned over the three main upper rollers 3, 8, and 4, as well as over the support rollers 5 carried on beams 22 and over tensioning rolls 23.
  • the lower rollers 3', 8', and 4' are all rigidly journaled on a single heavy duty support frame 24.
  • Transmissions 25 and 25' serve to drive the rollers 8 and 8' respectively as shown in FIG. 2.
  • Dot-dash line 26 indicates the path of a deposition belt on which fibers or chips are deposited to form an incoherent band pressed into a coherent band by the prepress according to the present invention.
  • Eight hydraulic cylinders 27 are provided between the support beams 22 and the frame 24 so as to allow the support rollers 5 to be displaced according to the present invention.
  • the rollers 3, 8, and 4 are supported on a pair of frames 10 formed of a pair of longitudinally extending beams 11 and a pair of transversely extending beams 12. As shown in more detail in FIGS. 2 and 3 the longitudinally extending beam 11 are of rectangular section and the beams 12 are of circular section, both of the beams 11 and 12 being hollow and made of steel.
  • the rollers 4 and 8 are journaled in the longitudinal beam 11 in identical fashion.
  • FIG. 6 shows the mounting of roller 8, wherein this roller is formed at its end with bearing 19 is arranged in a sleeve 19a permitting limited displacement of the bearing 19 relative to the beam 11 in a direction transverse to this beam 11.
  • the rollers 3, 4, and 5 are similarly mounted.
  • Each transverse beam 12 has at one end 12' a pair of rigid steel gussets 14 which are welded in place to connect this end 12' securely to the respective longitudinal beam 11, as shown in more detail in FIG. 4.
  • the other end 12" of the tube 12 is fitted with an insert 21 welded securely in place within it and provided with a ball surface 15 held in place by a nut 28 and received within a socket 16 held by a snap ring 29 in the respective beam 11.
  • This motion is effected by hydraulic cylinders 13 having their cylinder members 13a secured to the frame 24 and their piston rods 13b connected to either the insert 21 shown in FIG.
  • the two frames 10 allow the front region of the press as shown at double-headed arrow 18 to be spread so as to form a mouth tapered in the upstream direction whereas the upstream section 17 has the rollers generally evenly spaced apart.
  • the control means is operated to compensate for various different thicknesses in the band strewn on the conveyor belt 26.
  • Such an arrangement allows the press to compensate almost instantly for any difference in thickness of the strewn band of fibers. In fact it allows one of the rollers to be tipped in one direction while the other is tipped in the opposite direction without undue stress of the frames 10. Such an arrangement allows the production of a prepressed mass of uniform density over its entire area.
  • a roller frame for a continuous band press comprising:
  • each of said cylinders has an end connected to a respective end of a respective a respective one of said transverse beams.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Dry Formation Of Fiberboard And The Like (AREA)
  • Press Drives And Press Lines (AREA)
  • Veneer Processing And Manufacture Of Plywood (AREA)
  • Orthopedics, Nursing, And Contraception (AREA)
US457626A 1973-04-04 1974-04-03 Continuous prepress for fiberboard plant Expired - Lifetime US3885901A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19732316781 DE2316781C3 (de) 1973-04-04 Kontinuierliche arbeitende Presse zum Pressen von Preßgutmatten

Publications (1)

Publication Number Publication Date
US3885901A true US3885901A (en) 1975-05-27

Family

ID=5876952

Family Applications (1)

Application Number Title Priority Date Filing Date
US457626A Expired - Lifetime US3885901A (en) 1973-04-04 1974-04-03 Continuous prepress for fiberboard plant

Country Status (3)

Country Link
US (1) US3885901A (fi)
JP (1) JPS5536038B2 (fi)
SE (1) SE391895B (fi)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3945789A (en) * 1974-04-24 1976-03-23 Sandco Limited Dual-belt press
US3981663A (en) * 1973-09-10 1976-09-21 Lupke Gerd Paul Heinrich Apparatus for making high speed corrugated plastic tubing
US3981666A (en) * 1973-10-30 1976-09-21 Sipke Sikke Wadman Compression device
US3994648A (en) * 1974-06-25 1976-11-30 Kornylak Corporation Endless conveyor spacing control for continuous molding
US4002114A (en) * 1974-05-07 1977-01-11 Sandco Ltd. Hydraulic dual-belt press and control
US4043733A (en) * 1975-07-02 1977-08-23 Bison-Werke Bahre & Greten Gmbh & Co. Kg Endless belt guide arrangement for a continuously operating press
US4881888A (en) * 1987-09-01 1989-11-21 Bo Folkesson Press for the continuous production of boards
US5112209A (en) * 1987-10-09 1992-05-12 Eduard Kusters Maschinenfabrik Gmbh & Co Kg Twin-belt press for manufacturing particle boards
US5253571A (en) * 1990-06-01 1993-10-19 Maschinenfabrik J. Dieffenbacher Gmbh & Co. Method for guiding steel bands about a longitudinal axis of a continuously working press
US5658407A (en) * 1993-05-06 1997-08-19 Sunds Defibrator Industries Ab Method and apparatus for pre-pressing fibrous materials during the manufacture of fiberboard materials
US20050116377A1 (en) * 2001-09-28 2005-06-02 Katuyuki Hasegawa Composite wood and manufacturing method thereof
US20110159135A1 (en) * 2009-12-30 2011-06-30 Desmarais Thomas Allen System for producing high internal phase emulsion foam
CN102773904A (zh) * 2012-08-10 2012-11-14 江苏快乐木业集团有限公司 一种定向刨花板的预压机

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5102855B2 (ja) * 2010-03-26 2012-12-19 博孝 川島 柑橘類果実の搾汁装置
JP5102856B2 (ja) * 2010-03-26 2012-12-19 博孝 川島 柑橘類果実の切削装置
JP2022053622A (ja) * 2020-09-25 2022-04-06 株式会社Ｉｈｉ物流産業システム ダブルベルトプレス装置

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3242527A (en) * 1964-08-19 1966-03-29 Certain Teed Fiber Glass Oven for curling resin impregnated fibrous mat
US3371383A (en) * 1965-09-28 1968-03-05 Swedlow Inc Continuous casting apparatus
US3784340A (en) * 1971-08-16 1974-01-08 I Kerttula Machine for continuous manufacturing of chip boards
US3795470A (en) * 1971-07-14 1974-03-05 Mets Nv Konstruktienerkhuizen Press for continuously producing chip board, fiber board or the like
US3827846A (en) * 1972-08-22 1974-08-06 H Weiler Apparatus for making cured tire tread strip

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3425342A (en) * 1966-04-18 1969-02-04 Neil Malarkey Jr Press with deformable cylinders

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3242527A (en) * 1964-08-19 1966-03-29 Certain Teed Fiber Glass Oven for curling resin impregnated fibrous mat
US3371383A (en) * 1965-09-28 1968-03-05 Swedlow Inc Continuous casting apparatus
US3795470A (en) * 1971-07-14 1974-03-05 Mets Nv Konstruktienerkhuizen Press for continuously producing chip board, fiber board or the like
US3784340A (en) * 1971-08-16 1974-01-08 I Kerttula Machine for continuous manufacturing of chip boards
US3827846A (en) * 1972-08-22 1974-08-06 H Weiler Apparatus for making cured tire tread strip

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3981663A (en) * 1973-09-10 1976-09-21 Lupke Gerd Paul Heinrich Apparatus for making high speed corrugated plastic tubing
US3981666A (en) * 1973-10-30 1976-09-21 Sipke Sikke Wadman Compression device
US3945789A (en) * 1974-04-24 1976-03-23 Sandco Limited Dual-belt press
US4002114A (en) * 1974-05-07 1977-01-11 Sandco Ltd. Hydraulic dual-belt press and control
US3994648A (en) * 1974-06-25 1976-11-30 Kornylak Corporation Endless conveyor spacing control for continuous molding
US4043733A (en) * 1975-07-02 1977-08-23 Bison-Werke Bahre & Greten Gmbh & Co. Kg Endless belt guide arrangement for a continuously operating press
US4881888A (en) * 1987-09-01 1989-11-21 Bo Folkesson Press for the continuous production of boards
US5112209A (en) * 1987-10-09 1992-05-12 Eduard Kusters Maschinenfabrik Gmbh & Co Kg Twin-belt press for manufacturing particle boards
US5253571A (en) * 1990-06-01 1993-10-19 Maschinenfabrik J. Dieffenbacher Gmbh & Co. Method for guiding steel bands about a longitudinal axis of a continuously working press
US5323696A (en) * 1990-06-01 1994-06-28 Maschinenfabrik J. Dieffenbacher Gmbh & Co. Device for guiding steel bands
US5333541A (en) * 1990-06-01 1994-08-02 Maschinenfabrik J. Dieffenbacher Gmbh & Co. Method for guiding steel bands of a continuously working press by altering a position of a pressing ram to apply a varying pressure profile to a material being pressed
US5658407A (en) * 1993-05-06 1997-08-19 Sunds Defibrator Industries Ab Method and apparatus for pre-pressing fibrous materials during the manufacture of fiberboard materials
US20050116377A1 (en) * 2001-09-28 2005-06-02 Katuyuki Hasegawa Composite wood and manufacturing method thereof
US20110159135A1 (en) * 2009-12-30 2011-06-30 Desmarais Thomas Allen System for producing high internal phase emulsion foam
US8770956B2 (en) * 2009-12-30 2014-07-08 The Procter & Gamble Company System for producing high internal phase emulsion foam
CN102773904A (zh) * 2012-08-10 2012-11-14 江苏快乐木业集团有限公司 一种定向刨花板的预压机

Also Published As

Publication number Publication date
DE2316781A1 (de) 1974-10-17
DE2316781B2 (de) 1976-01-15
JPS5536038B2 (fi) 1980-09-18
JPS5052679A (fi) 1975-05-10
SE391895B (sv) 1977-03-07

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