US3371380A - Abutment device for the platens of a multiplaten press - Google Patents

Abutment device for the platens of a multiplaten press Download PDF

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Publication number
US3371380A
US3371380A US513975A US51397565A US3371380A US 3371380 A US3371380 A US 3371380A US 513975 A US513975 A US 513975A US 51397565 A US51397565 A US 51397565A US 3371380 A US3371380 A US 3371380A
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United States
Prior art keywords
platens
press
platen
abutment
inset
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Expired - Lifetime
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US513975A
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English (en)
Inventor
Bruder Karl
Buschfeld Herbert
Gerhardt Klaus
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G Siempelkamp GmbH and Co KG
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G Siempelkamp GmbH and Co KG
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B7/00—Presses characterised by a particular arrangement of the pressing members
    • B30B7/02—Presses characterised by a particular arrangement of the pressing members having several platens arranged one above the other

Definitions

  • the present invention relates to multiplaten presses of the type commonly in use for the compression of fibrous mats into fiber boards and sheets of hard, intermediate or soft character. More particularly, this invention is directed to improvements in multistage or multiplaten presses also known commonly as multiopening presses, wherein a plurality of vertically spaced generally horizontal platens each are charged with the fibrous, granular or powdery mass to be pressed and the platens are simutaneously or successively closed with subsequent application of pressure and, generally, heat to form the loosely coherent or noncoherent layers on each platen into plates, boards or sheets.
  • the closing of the press prior to the application of substantial pressure to the material to be shaped has been carried out essentially by two systems which can be characterized as successive or simultaneous. It is known, for example, to provide an ascending ramp which, during its elevation, successively lifts the platens carrying the material to be pressed from the lowermost to the uppermost from their respective supports or intercepts until the entire stack is compressed against the head plate of the press.
  • the duration ,of the press pressure and the pressure level to which the material is exposed vary from platen to platen since each platen adds its weight to the platen therebelow.
  • the intercepts or supports for the platens, from which they are lifted by the ramp may have the configuration of stepped bodies with the successive vertical stages being offset horizontally outwardly to permit each lower platen to clear the intercept steps thereabove.
  • the principal object of this invention is, therefore, the provision of a multiplaten press of the fast-opening type in which the aforementioned disadvantages can be avoided.
  • Another object of this invention is to provide an improved abutment device for supporting the platen of a multiplaten press in the open condition thereof.
  • an abutment or intercept device in the form of a stepped plate on the frame of the press or adjacent this frame having horizontally offset vertically spaced abutment surfaces elastically yieldable in the vertical direction whereby the abutment surfaces each is engaged by a respective platen of the press and yieldably support it in the open condition of the press.
  • each of the abutment surfaces is formed by a respective inset vertically movable within a recess in a support plate receiving the inset with longitudinal play while spring means, advantageously in the form of dished-disk springs or Belleville washers stacked in a bore of the inset, resiliently urge the inset upwardly against the impact of the respective platen.
  • each of the insets is removably mounted in the respective recess of the support body and is vertically guided therein by an upstanding pin receivable in a vertical bore in a tongue of the inset extending away from the platen, the pin being, in turn, removably held in the recess by its head which is threadedly engaged by bolt means or the like, extending into the recess from a side of the support body of the stepped plate opposite that at which the platens are disposed.
  • This arrangement is particularly advantageous in that it provides a cushioning surface for each of the platens which is unaffected by ambient temperature and humidity conditions, which does not require frequent adjustment, and which is individual to each platen thereby avoiding damage to the platens as well as to the intercept.
  • the guide pins through the tongues of the insets will maintain the desired horizontal lay in spite of the fact that only the outer edge portion of each inset is engaged by the respective platen.
  • FIG. 1 is a vertical elevational View of a multiplaten press embodying the abutment platen of the present invention
  • FIG. 2 is a fragmentary cross-sectional view, drawn to an enlarged scale, of a detail of the abutment plate.
  • FIG. 3 is a cross-sectional view taken along the line III-III of FIG. 2.
  • FIG. 1 I show a multiplaten press of the general type described in commonly assigned US. Patent No. 3,050,777, issued to Eugen Siquelkamp, wherein the press platens I, 2, 3 etc. are vertically spaced and lie horizontally between the support frames of the press one of which is shown at 10.
  • the simultaneous-closure device for this press can include a plurality of flexible cables 11 passing around idler pulleys 12 and atfixed to bed 13 of the press which is vertically movable by a hydrauliccylinder assembly 14.
  • the cables 11 are connected to large steps of respective stepped-cone pulleys 15 journaled on the head plate 16 of the press. From the individual successively smaller-diameter steps of these pulleys 15, further cables 17 run to the platens 1, 2, 3 etc.
  • the present improvement is applicable to multiplaten presses with simultaneous-closure devices of the type shown here or of the type of the prior U.S. Patent No. 3,209,405 or any other in which it is advantageous to provide supports for the individual platens in the open condition of the press.
  • each abutment step of the plate 20 comprises a respective inset 34 received within a respective recess 35 in the plate 20, the insets 34 being longitudinally shiftable therein.
  • the inset 34 has rearwardly extending tongues 34a having vertical bores 340 in which bearing sleeves 41 are provided for receiving fixed vertical guide pins 36.
  • the front portions 341'; of the inset 34 are provided with resilient means 37 in the form of axially aligned stacked dishedspring washers (Belleville washers) which urge the inset 34 upwardly against the upper wall of the respective recess 35.
  • the guide pins 36 are insertable in the recess 35 together with their respective inset 34 and have heads 38 which are locked in the recess by bolts 39 threaded into the heads 38 and passing through the rear walls of the plates 20 into the respective recesses. When the bolts 39 are disengaged, the guide pins 36 with their heads 38 and their respective insets 34 can be slipped out of the recesses 35.
  • the spring means 37 cushioning the insets 34 against impact with the respective platens 1, 2, 3 etc. are Belleville Washers; these washers surround respective centering studs 42 which are guided in bores 44 coaxial with the cylindrical recesses 45 receiving the Belleville washers.
  • the studs 42 have heads 43 against which the stacks of spring washers 37 are seated and which bear against the bottom walls 35' of the respective recesses 35. In effect, therefore, each inset 34 is guided in its cushioning movement by a pair of parallel guide pins 36, 42.
  • a passage 47 communicates between the guide 2E. bore 44 and the exterior of each inset 34 to prevent the formation of gas cushions between the stud 42 and the walls of the inset.
  • abutment device having vertically spaced horizontally offset stepped abutment surfaces individually engageable by respective platens of the press for supporting said platens in an open condition of the press, and resilient means for permitting elastic movement of said abutment surfaces upon their engagement by said platens on pressopening movement thereof.
  • said device comprises an upstanding support plate formed with a multiplicity of recesses open in the direction of said platens and flanking same, respective insets received in said recesses and forming said abutment surfaces while being engageable with the respective platens, and guide means in each of said recesses for vertically guiding the respective inset for vertical movement with respect to said support plate, said resilient means including spring means individual to each of said insets for urging same upwardly within the respective recess.
  • said insets each have a forward portion extending out of the respective platen and a rearward portion provided with a vertical bore
  • said guide means including a pin individual to each of said insets and slidably received in said bore of the respective inset and means for removably mounting said pins in said recesses.
  • each of said pins has an enlarged head and said means for removably mounting said pins in said recesses includes a respective bolt threadedly engageable with the head of the pin and extending through said support platen into the respective recess.
  • each of said insets has a downwardly open recess in the respective forward portion, said spring means including a stack of spring washers axially aligned in each of said recesses, and a respective centering stud passing through said washers, said insets each having a guide bore coaxial with said recess and slidably engaging the respective stud for guiding said stud in the respective inset.
  • each of said insets is provided with a venting passage com- 5 6 municating between the respective guide bore and the References Cited exterior for preventing the formation of a gas cushion UNITED STATES PATENTS for the respective stud.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Presses And Accessory Devices Thereof (AREA)
  • Automatic Assembly (AREA)
US513975A 1965-03-16 1965-12-15 Abutment device for the platens of a multiplaten press Expired - Lifetime US3371380A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DES95979A DE1210549B (de) 1965-03-16 1965-03-16 Etagenpresse mit Stufenplatten

Publications (1)

Publication Number Publication Date
US3371380A true US3371380A (en) 1968-03-05

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Family Applications (1)

Application Number Title Priority Date Filing Date
US513975A Expired - Lifetime US3371380A (en) 1965-03-16 1965-12-15 Abutment device for the platens of a multiplaten press

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US (1) US3371380A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
DE (1) DE1210549B (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
SE (1) SE316007B (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3543336A (en) * 1968-03-25 1970-12-01 Grace W R & Co Molding apparatus
US5743179A (en) * 1996-09-27 1998-04-28 Pohl; Andrew P. Frameless high pressure platen press

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1737143A (en) * 1927-11-03 1929-11-26 Hood Rubber Co Inc Platen press
US2500791A (en) * 1947-08-08 1950-03-14 Baldwin Locomotive Works Supporting means for press platens
US2884033A (en) * 1957-05-06 1959-04-28 Washington Iron Works Multi-platen hot press
DE1096055B (de) * 1958-02-12 1960-12-29 Teldec Telefunken Decca Schallplattenpresse in Etagenanordnung
US3050777A (en) * 1959-02-05 1962-08-28 Siempelkamp Eugen Multi-platen press

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1153880B (de) * 1961-10-20 1963-09-05 Siempelkamp Gmbh & Co Etagenpresse mit Steuervorrichtung fuer die Bewegung der Pressenplatten

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1737143A (en) * 1927-11-03 1929-11-26 Hood Rubber Co Inc Platen press
US2500791A (en) * 1947-08-08 1950-03-14 Baldwin Locomotive Works Supporting means for press platens
US2884033A (en) * 1957-05-06 1959-04-28 Washington Iron Works Multi-platen hot press
DE1096055B (de) * 1958-02-12 1960-12-29 Teldec Telefunken Decca Schallplattenpresse in Etagenanordnung
US3050777A (en) * 1959-02-05 1962-08-28 Siempelkamp Eugen Multi-platen press

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3543336A (en) * 1968-03-25 1970-12-01 Grace W R & Co Molding apparatus
US5743179A (en) * 1996-09-27 1998-04-28 Pohl; Andrew P. Frameless high pressure platen press

Also Published As

Publication number Publication date
DE1210549B (de) 1966-02-10
SE316007B (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1969-10-13

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