US3173976A - Method and device for the formation and transport of blanks, formed of particles such as wood shavings, fibres and the like destined to be compressed to boards - Google Patents

Method and device for the formation and transport of blanks, formed of particles such as wood shavings, fibres and the like destined to be compressed to boards Download PDF

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Publication number
US3173976A
US3173976A US147256A US14725661A US3173976A US 3173976 A US3173976 A US 3173976A US 147256 A US147256 A US 147256A US 14725661 A US14725661 A US 14725661A US 3173976 A US3173976 A US 3173976A
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US
United States
Prior art keywords
mat
blanks
support sheets
press
compressed
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
US147256A
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English (en)
Inventor
Paerels Franciscus
Hostettler Werner Ernst
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.)
FRED FAHRUI
Original Assignee
FRED FAHRUI
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.)
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Publication date
Application filed by FRED FAHRUI filed Critical FRED FAHRUI
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Publication of US3173976A publication Critical patent/US3173976A/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
    • B27N3/00—Manufacture of substantially flat articles, e.g. boards, from particles or fibres
    • B27N3/08—Moulding or pressing
    • B27N3/20—Moulding or pressing characterised by using platen-presses
    • B27N3/22—Charging or discharging
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
    • B27N3/00—Manufacture of substantially flat articles, e.g. boards, from particles or fibres
    • B27N3/08—Moulding or pressing
    • B27N3/16—Transporting the material from mat moulding stations to presses; Apparatus specially adapted for transporting the material or component parts therefor, e.g. cauls
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21J—FIBREBOARD; MANUFACTURE OF ARTICLES FROM CELLULOSIC FIBROUS SUSPENSIONS OR FROM PAPIER-MACHE
    • D21J1/00—Fibreboard
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S425/00—Plastic article or earthenware shaping or treating: apparatus
    • Y10S425/20—Molding plants
    • Y10S425/201—Diverse stations

Definitions

  • the aim of the invention which concerns, on the one hand a method, and on the other a device for the formation and transport of blank-s formed of particles, such as wood shavings, fibres and the like destined to be compressed to boards, is to combine the advantages of the two described systems while eliminating the enumerated disadvantages.
  • this problem is solved in that the particles are formed by 31,l73,976 ?atented Mar. 16, 1965 scattering or the like on at least one individual support made of flexible material moved forward along an elongated path, that the blanks which have been thus formed are taken over by a press feeding device, and that the support freed of the blanks is returned in a closed circuit to the spot where the formation of the blanks takes place.
  • the device for carrying out the new method is characterized according to the invention by at least one individual flexible support destined to take a blank formed on it, by transport means cooperating with the front side of the support and which extend from a particle distribution device towards a press feeding device and further by means for turning round and means for returning the support freed of the blank.
  • the press feeding device can consist of a simple step, which retains the blanks one at a time in the press, while the flexible support is withdrawn from the press on its rear side. It is particularly important to make it possible for several supports to be moved or kept stationary independently of one another. By providing correspondingly designed transport means it is possible for instance to keep one support stationary While at the same time moving other supports along the circuit path.
  • the drawing illustrates by way of an example an embodiment of the device according to the invention.
  • FIG. 1 shows a diagrammatic side view of an installation for forming pro-compressed wood shaving blanks.
  • FIG. 2 is a view from above of the installation according to FIG. 1, those parts which are situated above the still loose and the already pre-compressed blanks being left out.
  • a number of supports 3 made of flexible material on which the loose blanks l are formed by scattering are moved in a closed circuit and fitted with laterally projecting battens 13, which can be contacted by driving tappets on special transport chains in a manner which will be described.
  • a first transport chain 6 which for reasons of symmetry is doubled, runs over the sprocket wheels 7 and 8 and thus moves the supports 3 past below a scattering station 16 by means of tappets 12 secured to the chain.
  • Two chains 9 are similarly provided in addition. The latter run over sprocket wheels ill and 11, to which tappets 14 are secured.
  • the chains 9 extend up to and over a preliminary press, comprising a press table 17, a stamp 18 and the hydraulically operated rams 19.
  • the precompressed blanks leaving the preliminary press are indicated by the numeral 2.
  • a table 15 rests on a foundation 20.
  • the pressing cloths rest on this table during their return journey.
  • This grid has been omitted in the drawing for greater clarity, as have the guiding means on which the battens 13 run during the return motion, that is as long as they are moved along by the lower sides of the chains 6 and 9 by means of the tappets 14 and 12.
  • the preliminary press 17, 18 is followed by a press feeding device.
  • This is composed of a number of feeding plates 22 made of rigid material which can be raised and lowered simultaneously, and by means of which the precoinpressed blanks 2. are pushed in a known manner into a ten layer press, which has not been shown, in a single operation. After they have been inserted, the pre-compressed blanks 2 are retained in the open hot press and the feeding plates 22 are withdrawn from the latter.
  • An intermediate member 21 is provided. between the drum and the feeding frame. It prevents the precompressed blank breaking up during its passage from the support 2 on to the feeding plate 22.
  • the friction between the 'intermediate member 21 and the pre-compressed blanks sliding over it is conveniently reduced by means of an air cushion.
  • the intermediate member may be made hollow and be provided with openings in the surface turned towards the precompresSed blanks 2. The intermediate member has then to be connected to a compressed air line, so that air at a suitable pressure may flow out through the said openings and cause the pre-compressed blanks 2 to be lifted slightly.
  • the transporter 9 isbrought to a standstill.
  • a tappet 14 is just in the act of taking over from a tappet 12. This is effectively possible because of the higherspeed ofthe tappets 14 compared to'that of the tappetslZ.
  • the supports SItogether with the precompressed blanks 2 resting on them are drawn out of the preliminary press 17, 18.
  • the support 3 is deflected over the roller 5, and the p'recompre'ssed blank 2 continues to move straight onand' runs over the intermediate member 21 onto the feeding plate 22.
  • a succeeding blank 1 is inserted'in the preliminary press.
  • the latter is raised by one step and is thus ready to receive the next pre-compressedjblank.
  • a device characterized in that said conveyor means comprises two chain transport systems, one continuously-driven first chain transport system arranged below the scattering device, and one discontinuously-driven second chain transport system arranged between the first chain transport system and the press loading device, and extending beyond ta preliminary press.
  • a device characterized in that the reversing means comprises a horizontally arranged roller in front of the input end of the press loading device.
  • a method for forming and transporting mats consisting of particles intended to be compressed into boards characterized by forming mats including the step of moving individual pliable supports below a scattering station from which particles are scattered onto the supports moving the mat-loaded pliable supports forward along a rectilinear path into a preliminary press, interrupting the movement of the supports during the time of preconsolidas tion of the mats in the preiiminary'pre'ss, moving the supports with the preconsolidated mats towards the input end of a press loading device, separating the supports from the mats by reversing the moving direction of the supports and peeling them from the mats which continue to move along a straight path and are taken over by a carrier, and moving the empty supports back to the scattering station along a path lying directly beneath the path along which the mat-loaded supports have been guided.

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Dry Formation Of Fiberboard And The Like (AREA)
  • Press Drives And Press Lines (AREA)
US147256A 1960-11-03 1961-10-24 Method and device for the formation and transport of blanks, formed of particles such as wood shavings, fibres and the like destined to be compressed to boards Expired - Lifetime US3173976A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1232060A CH380371A (de) 1960-11-03 1960-11-03 Verfahren und Vorrichtung zur Herstellung und zum Transport von zur Verpressung zu Pressplatten bestimmten Formlingen aus Teilchen, wie Holzspänen, Fasern oder dergleichen

Publications (1)

Publication Number Publication Date
US3173976A true US3173976A (en) 1965-03-16

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ID=4381914

Family Applications (1)

Application Number Title Priority Date Filing Date
US147256A Expired - Lifetime US3173976A (en) 1960-11-03 1961-10-24 Method and device for the formation and transport of blanks, formed of particles such as wood shavings, fibres and the like destined to be compressed to boards

Country Status (3)

Country Link
US (1) US3173976A (de)
CH (1) CH380371A (de)
GB (1) GB952516A (de)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3226764A (en) * 1961-06-17 1966-01-04 Fred Fahrni Apparatus for the preparation and transport of board blanks destined to be pressed
US3312999A (en) * 1963-02-22 1967-04-11 Bahre Metallwerk K G Apparatus for the continuous manufacture of boards from particle-like substances
US3323446A (en) * 1964-08-04 1967-06-06 Alpini Walter Endless belt conveyor for intermittent feeding of heated press
US3389652A (en) * 1965-03-12 1968-06-25 Siempelkamp Gmbh & Co Apparatus for the charging of multiplaten presses
US3542629A (en) * 1967-04-11 1970-11-24 Schenck Gmbh Carl Method and apparatus for producing and transporting single- and multilayer chipboards
US3824058A (en) * 1972-01-08 1974-07-16 Siempelkamp Gmbh & Co Apparatus for the production of pressed board
US3887314A (en) * 1972-06-29 1975-06-03 Siempelkamp Gmbh & Co System for the production of pressed board
US3964853A (en) * 1974-11-13 1976-06-22 Becker & Van Hullen Niederrheinische Maschinenfabrik Apparatus for loading multi-stage heating presses
USRE30759E (en) * 1967-04-11 1981-10-06 Carl Schenck Ag Method and apparatus for producing and transporting single and multilayer chipboards
US4573899A (en) * 1982-12-22 1986-03-04 Bison-Werke Bahre & Greten Gmbh & Co. Kg Plant for the manufacture of particleboard
CN104842435A (zh) * 2015-05-12 2015-08-19 福建省顺昌吉鑫竹木有限公司 一种空心刨花板的下料器

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2929235A1 (de) * 1979-07-19 1981-02-05 Schenck Ag Carl Verfahren zur uebergabe von von verpressten spanplatten befreiten unterlagen
DE29818173U1 (de) * 1998-10-12 1999-04-01 Constructiewerkhuizen De Mets N.V., Kachtem, Izegem Kontinuierliche Rollenvorpresse mit Kettenführung

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA466822A (en) * 1950-07-25 Chapman Ralph Forming press with loader and unloader
US2574915A (en) * 1948-07-24 1951-11-13 Rock Island Millwork Company Molding tray
US2696330A (en) * 1951-01-09 1954-12-07 Fahrni Fred Method and machine for spreading core material
US2845662A (en) * 1956-06-13 1958-08-05 Changewood Corp Method and apparatus for depositing loose materials on support surfaces
US2878728A (en) * 1954-02-23 1959-03-24 Changewood Corp Press feeding apparatus
US2923030A (en) * 1952-12-23 1960-02-02 Allwood Inc Methods and apparatus for producing pressed wood-particle panels
US2960722A (en) * 1960-01-05 1960-11-22 Freeman Philip Automatic web indexing and cut-off apparatus for plastic blister forming machine

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA466822A (en) * 1950-07-25 Chapman Ralph Forming press with loader and unloader
US2574915A (en) * 1948-07-24 1951-11-13 Rock Island Millwork Company Molding tray
US2696330A (en) * 1951-01-09 1954-12-07 Fahrni Fred Method and machine for spreading core material
US2923030A (en) * 1952-12-23 1960-02-02 Allwood Inc Methods and apparatus for producing pressed wood-particle panels
US2878728A (en) * 1954-02-23 1959-03-24 Changewood Corp Press feeding apparatus
US2845662A (en) * 1956-06-13 1958-08-05 Changewood Corp Method and apparatus for depositing loose materials on support surfaces
US2960722A (en) * 1960-01-05 1960-11-22 Freeman Philip Automatic web indexing and cut-off apparatus for plastic blister forming machine

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3226764A (en) * 1961-06-17 1966-01-04 Fred Fahrni Apparatus for the preparation and transport of board blanks destined to be pressed
US3312999A (en) * 1963-02-22 1967-04-11 Bahre Metallwerk K G Apparatus for the continuous manufacture of boards from particle-like substances
US3323446A (en) * 1964-08-04 1967-06-06 Alpini Walter Endless belt conveyor for intermittent feeding of heated press
US3389652A (en) * 1965-03-12 1968-06-25 Siempelkamp Gmbh & Co Apparatus for the charging of multiplaten presses
US3542629A (en) * 1967-04-11 1970-11-24 Schenck Gmbh Carl Method and apparatus for producing and transporting single- and multilayer chipboards
USRE30759E (en) * 1967-04-11 1981-10-06 Carl Schenck Ag Method and apparatus for producing and transporting single and multilayer chipboards
US3824058A (en) * 1972-01-08 1974-07-16 Siempelkamp Gmbh & Co Apparatus for the production of pressed board
US3887314A (en) * 1972-06-29 1975-06-03 Siempelkamp Gmbh & Co System for the production of pressed board
US3964853A (en) * 1974-11-13 1976-06-22 Becker & Van Hullen Niederrheinische Maschinenfabrik Apparatus for loading multi-stage heating presses
US4573899A (en) * 1982-12-22 1986-03-04 Bison-Werke Bahre & Greten Gmbh & Co. Kg Plant for the manufacture of particleboard
CN104842435A (zh) * 2015-05-12 2015-08-19 福建省顺昌吉鑫竹木有限公司 一种空心刨花板的下料器

Also Published As

Publication number Publication date
GB952516A (en) 1964-03-18
CH380371A (de) 1964-07-31

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