US3315304A - Apparatus for manufacturing light weight building boards - Google Patents

Apparatus for manufacturing light weight building boards Download PDF

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Publication number
US3315304A
US3315304A US340654A US34065464A US3315304A US 3315304 A US3315304 A US 3315304A US 340654 A US340654 A US 340654A US 34065464 A US34065464 A US 34065464A US 3315304 A US3315304 A US 3315304A
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Prior art keywords
mould
press
moulds
rims
plates
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Expired - Lifetime
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US340654A
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English (en)
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Gerrit Jan Van Elten
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B3/00—Producing shaped articles from the material by using presses; Presses specially adapted therefor
    • B28B3/02—Producing shaped articles from the material by using presses; Presses specially adapted therefor wherein a ram exerts pressure on the material in a moulding space; Ram heads of special form
    • B28B3/10—Producing shaped articles from the material by using presses; Presses specially adapted therefor wherein a ram exerts pressure on the material in a moulding space; Ram heads of special form each charge of material being compressed against previously formed body
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B1/00—Producing shaped prefabricated articles from the material
    • B28B1/52—Producing shaped prefabricated articles from the material specially adapted for producing articles from mixtures containing fibres, e.g. asbestos cement
    • B28B1/525—Producing shaped prefabricated articles from the material specially adapted for producing articles from mixtures containing fibres, e.g. asbestos cement containing organic fibres, e.g. wood fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B3/00—Producing shaped articles from the material by using presses; Presses specially adapted therefor
    • 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
    • Y10S425/054—Through travel mold

Definitions

  • the present invention is related to an apparatus for manufacturing light weight building boards, and more particularly to stacking and pressing light weight building boards of wood wool mixed with a binding agent.
  • Light weight building boards of the type described are manufactured by mixing wood wool and binding agent, such as cement, and filling the mixtureinto moulds.
  • the moulds are arranged in contiguity with one another, and at their joining points, the wood wool mixture is cut into pieces of boards.
  • the moulds, each containing a board, are piled up, compressed in a press and stored under pressure until the setting of the cement is completed.
  • the longitudinal edges of the moulds are provided with side rims, which may be rigidly fastened to the moulds, movably mounted on the moulds or laid against the moulds in loose connection.
  • the conventional pressing devices in use for these moulds have shown to be disadvantageous as the side rims, when the mould is introduced into the press, may easily be damaged by the press power, or, where the loose rims are applied, a burr may occur between the rim and bottom of mould. This impairs the quality of the building board and makes it necessary to remove the burrs in a separate working process, involving cost and labor.
  • a further object is to provide apparatus in which formation of burrs, at the longitudinal edges of the building boards, piled up and compressed in the press, is eliminated.
  • Another object is to supply an apparatus by which the method according to the invention can be carried out.
  • FIG. 1 is .an end view illustrating a press for moulds of rigid side rims in accordance with the instant invention and in the position of introduction of a new mould;
  • FIG. 2 is an enlarged view of the lower part of the press of FIG. 1 showing a new mould being introduced;
  • FIG. 3 is an enlarged view of the lower part of the press as in FIG. 2 but showing another stage of operation;
  • FIG. 4 is an end view of a press for moulds of loose side rims in accordance with the instant invention and in the position of introduction of a new mould;
  • FIG. 5 is an enlarged partial view of FIG. 4 of a part of the apparatus of FIG. 4 but in another stage of operation;
  • FIG. 6 is an enlarged partial view of the press of FIG. 4 in a stage of operation subsequent to the stage shown in FIG. 4;
  • FIG. 7 is an end view of the press of FIG. 4 showing the press subsequent to completion of elevation of the mould.
  • the moulds piled up inside the press, are supported on steel plates 14 fastened to the plate.
  • the steel plates are moved inwardly toward each other and the center of the mould, and thereby push back into the mould any material extending over the top surface of the rim of the newly arrived mould.
  • This procedure eliminates any burrs at the longitudinal edges of the finished boards.
  • loose rims are used on the moulds, the rims are advanced between steel plates, and a horizontal guide surface of the press structure. The rims are only advanced for part of their width before the new mould is raised s'uificiently to position its bottom plate adjacent the lower surface of the rim. The rims are then pushed onto the bottom plate of the mould and compress the material on the bottom plate from both sides. Subsequent thereto, the steel plates are withdrawn from under the rims and an upwardly directed pressure is exerted on the bottom plate of the new mould.
  • the weight of the pile of moulds in the press is carried by the two lateral steel plates which not only support the pile of moulds but also eliminate burrs at the longitudinal edges of the boards so that subsequent work to remove burrs is unnecessary.
  • the invention is of particular advantage in that the rims can be moved laterally onto the mould without being subjected to the weight of the pile of moulds.
  • the power of motion required to move the rims is reduced and the rims are protected from wear.
  • the force for raising the mould against its [rims may be varied and, preferably, is adjusted in such a ma11- ner that the rims are free from play when moved towards the inside of the press between the steel plates. The absence of play insures that burrs will not form.
  • the invention in carrying out the invention with moulds having rigid side rims, provides a device containing a steel plate at either side of the press, which is rested on a horizontal supporting surface and is connected by an articulated connection to a driving or moving mechanism. Due to the articulated connection, the steel plates can be freely suspended and are, in their raised position, under like pressure from above and below.
  • the steel plates have a certain freedom which allows them to precisely adjust to the bottom plates of the moulds, no matter whether these are straight or slightly crooked.
  • the steel plates should be linked, through a switching device controlling their movement, to the drive of the press-table for receiving and lifting newly arrived moulds.
  • the steel plates and press-table are preferably operated by pressure force and, with an automatic control of the drives, the compressing procedure may be carried out without any operating staff. This applies to moulds of both rigid and loose side rims and in the latter case, the rims may be supplied from a magazine and automatically conveyed to the moulds.
  • a plurality of finished compressed moulds 12 are piled up inside press 11, the bottom plates 13 of each mould having side rims
  • the moulds 12 are piled up on top of one another under the charge of a press ram 15, which is linked with a pressing device 16.
  • a weighty concrete plate or similar charging element may be used.
  • Two steel plates 17 are provided to support the piled used lengths of boards, either side of press 11 receives two or three hydraulic cylinders 20.
  • each of the frames 18 Attached to the side of each of the frames 18 is an electric switch 23 having a spring pressed switching bolt 24 held by the spring in contact with steel plate 17.
  • Switch 23, in a manner later to be described, controls hydraulic driving cylinder 25 of press-table 26, positioned under press 11. Press table 26 is movable by cylinder 25 in a vertical direction.
  • the moulds 12 are, in a filling machine as described in my Patent No. 3,096,227, filled with moistened wood wool mixed up with a binding agent, such as cement, and receive a rough pressing in the filling machine. Due to its elasticity, the material of the building boards re-expands on leaving the filling machine so that it projects above the two side rims 14 fastened to bottom plate 13, as can be seen from FIG. 1.
  • moulds 12 are conveyed on-to press-table 26, for example by means of a roller way 27.
  • the moulds canv reach press-table 26 without difiiculty as the other moulds piled up within press 11, in the position shown in FIG. 1, are carried by the steel plates 17.
  • press-table 26 is, by means of hydraulic cylinder 25, raised sufficiently to bring the rigid rims 14 of bottom plate 13 of mould 12 on press 26 into contact with the bottom surfaces of steel plates 17 and raises plates 17 and moulds 12, in press 11, from their initial horizontal position of FIG. 1' to a slightly elevated horizontal position.
  • the slight elevation of plates 17 is possible because of the horizontal and vertical joints 19 and 21.
  • steel plate 17 is spaced from bolt 24 of switch 23, as is shown in FIG. 2, stopping driving cylinder 25 of press-table 26.
  • switching bolt 24 operates hydraulic cylinders 20, to move steel plates 17 in an inward direction and push back burr 28, formed in the space between side rim 14 and bottom plate 13 of the underrnost mould inside the press because the material of the building board was slightly compressed and some of the material pressed over the edge of rim 14 as the new mould on press-table 26 was elevated. Because of the hydraulic cylinders 20 being in articulated link with parts 22 of the press structure, and the vertical forces on the plates are balanced, the steel plates 17 are under like pressure from above and below.
  • press ram 15 The moulds piled up in press 11 are under the charge of press ram 15 and pressing device 16.
  • Pressing device 16 may be of a double acting type operated by hydraulic force. The pressure exercised by pressing device 16 should be regulated so that the presence can be decreased when the pile of moulds inside press 11 is increased.
  • press ram 15 is replaced by a weighty plate, and .pressing device 16 is of the single acting type.
  • the pile of moulds is put aside while the binding agent is setting, during which time the moulds are kept together by clamps or again charged with a weighty plate of concrete, or the like, so
  • the apparatus of the invention is not restricted to moulds with rigid rims. It is equally advantageous in cases where the side rims are slidably mounted upon the moulds. This can be accomplished by holding the rims by bolts and providing slots in the rims or moulds for limited movement of the rims (not shown). Finally, the rims may be placed without any connection upon the edges of the moulds (not shown). Furthermore the rims can be placed upon the moulds only during the process of compression. In this case, the filling machine is provided with an additional device by which the raw material filled into the moulds is restricted to the size of the latter.
  • Magazine box 30 is mounted on a U-shaped iron rail 32, which exceeds the length of side rims 31, and at its end portions rail 32 is supported on the press structure.
  • a plurality of horizontal .joints 33 coupled with the piston rods of hydraulic cylinders 20', is located at the outside wall of magazine box 30.
  • the hydraulic cylinders 20 are fastened to part 22 of the press structure in the same manner as in the embodiment shown in FIG. 1.
  • a plurality of hydraulic cylinders 34 are arranged at either side of the press.
  • the piston rods of cylinders 34 carry a slide 35-, guided on a horizontal surface 36 below box 30.
  • the surface 36 is adjustable in its height in order that side rims of varied sizes may be fed into the press.
  • Press-table 26, together with its hydraulic driving cylinder 25, is arranged below press 11 in the same manner as in the first embodiment shown in FIG. 1 with bearings 37 for conveyor wheels or chains 38, on which the moulds coming from the filling machine are supplied to press-table 26.
  • both the steel plates 17 are withdrawn from position under the bottom plate 13 of the lowermost mould in the press to the position shown in FIG. 6. Thereafter, slide 35 is retracted, opening magazine box 30 to supply the next rim 31 to the horizontal surface 36.
  • Press-table 26 is now further elevated until the rims 31 touch the bottom plate 13 of the lowermost mould of the pile in press 11.
  • the material of the building board in the mould on presstable 26 is then compressed to the height of rims 31.
  • the whole pile of moulds in press 11 is raised by the height of one mould so that the bottom plate of the now lowermost mould in press 11 is situated above the level of the two steel plates 17, as shown in FIG. 7.
  • the pressure used for raising the moulds can be varied according to the force needed for compression of the boards, which depends on the board thickness: thin boards require more pressing power than thick ones.
  • the pressing power of press-table 26 should be adjusted to 400* kilograms.
  • the pressure exerted on either rim 31 will in this case amount to only 50 kilograms as, owing to the interposition of the steel plates 17, the rims are relieved from the load of the pile of moulds and of press ram or weight 15. If the steel plates 17 were omitted, either rim 31 would be subject to a pressure of 750 kilograms; namely, 400 kilograms, which is one half of the weight of the piled up moulds and 500 kilograms which is one half of the weight 15, minus the counter-pressure of 300 kilograms of the material.
  • the steel plates provided by the invention essentially relieve the side rims from pressure. Because of this and of the guidance of the upper surface of side rims 31 at the steel plates 17, the upper surface of side rims 31 are not subject to any wear and tear. Although the lower surface of the rims is subject to some wear, this amounts to only 50/750 of the wear in conventional construction, and is therefore negligible. Further, the material of the building board is compressed without forming a burr so that subsequent removal of the burr and the loss of raw material connected with it are eliminated.
  • the supply of the loose side rims 31 may be performed under automatic control, through automatic control of hydraulic cylinders 34, by which the rims are pushed in, by a switching device smiliar to .the embodiment of FIG- URES 1 to 3.
  • the same apparatus may be used both for moulds of rigid and of loose side rims.
  • the steel plates 17, with their rails 32 and magazine box 30, may be mounted in the same freely pending way as the embodiment of FIGURES l to 3.
  • the apparatus of FIGURES 4 to 7 may be used for moulds of rigid rims without being altered.
  • Steel plates 17 may be guided on a surface adjustable in its height in place of the rigid frame 18 of the press structure, to make plates 17 adjustable to boards of varied thickness.
  • the adjustable guiding surface is placed in an initial horizontal position from which it is moved downwards.
  • the steel plates 17 themselves may be adjustable in their vertical position if the guiding surfaces are rigidly fastened to the press structure.
  • an apparatus for treating a wood wool-binder mixture carried upon bottom plates of a stack of moulds comprising two opposed plates for engaging opposed bottom edges of the lowermost mould of'said stack, means swingably supporting said opposed plates, first hydraulic means connected with said swingable means for moving said opposed plates toward and away from each other, a press table located below said opposed plates, means carried by said press table for receiving an additional mould, second hydraulic means connected to said press table for actuating said press table and said mould receiving means for moving said additional mould into engagement with the lowermost mould of said stack, an adjustable pressing device located above said opposed plates for engaging the uppermost mould of said stack, means connected with and actuating said first and second hydraulic means for moving said additional mould into place of said lowermost mould and for compressing the wood wool-binder mixture in said additional mould against the bottom of said lowermost mould and means movable in a horizontal direction towards each other for pushing pressed mixture projecting horizontally outward on said additional mould into said mould.
  • moulds comprise rims fixed to opposed edges of the bottom plates, said opposed plates being movable between the rims of the additional mould and the bottom plate of the lowermost mould.
  • An apparatus in accordance with claim 1 having loose rims, means for placing two rims upon opposed edges of the additional mould, and means for feeding rims to said placing means.
  • moulds comprise rims movably carried upon opposed edges of the bottom plates.
  • An apparatus in accordance with claim 4 having means limiting the extent of movement of said rims upon said opposed edges.
  • An apparatus for manufacturing light weight building boards comprising, a pressing device for receiving and stacking, one on top of the other, a plurality of moulds each filled with the material of a light weight building board fed to said pressing device from the bottom of said stack, a first rigid frame on said pressing device, a second rigid frame on said pressing device spaced from said first rigid frame for receiving a mould filled with the material of a light weight building board therebetween, a first plate movably mounted on said first rigid frame, a second plate movably mounted on said second rigid frame, drive means articulatedly connecting said first and second plates to said first and second rigid frames for moving said plates in a horizontal direction toward and away from each other for supporting and releasing said plurality of moulds in said pressing device, and means under said pressing device and said moulds stacked therein and under said plates for receiving a mould filled with the material of a light weight building board and for lifting said received mould toward the bottom of the lowermost mould in said pressing device and for compressing the material of a light weight building board on said receiving mould against the bottom of
  • a rim supplying magazine is positioned on each of said rigid frames and means on said magazine for feeding a rim from said magazines to the side of said received mould when said received mould is lifted by said receiving and lifting means.

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Stacking Of Articles And Auxiliary Devices (AREA)
  • Press-Shaping Or Shaping Using Conveyers (AREA)
  • Veneer Processing And Manufacture Of Plywood (AREA)
US340654A 1963-01-30 1964-01-28 Apparatus for manufacturing light weight building boards Expired - Lifetime US3315304A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEE24255A DE1284887B (de) 1963-01-30 1963-01-30 Vorrichtung zum Pressen von Leichtbauplatten

Publications (1)

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US3315304A true US3315304A (en) 1967-04-25

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US340654A Expired - Lifetime US3315304A (en) 1963-01-30 1964-01-28 Apparatus for manufacturing light weight building boards

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US (1) US3315304A (fr)
AT (1) AT244199B (fr)
BE (1) BE642571A (fr)
CH (1) CH410744A (fr)
DE (1) DE1284887B (fr)
DK (1) DK113557B (fr)
FI (1) FI41359C (fr)
GB (1) GB1053833A (fr)
NL (1) NL147665B (fr)
SE (1) SE303705B (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3685932A (en) * 1969-08-27 1972-08-22 Dieffenbacker Gmbh Mas Fab J Heating platen press
US3850564A (en) * 1971-12-06 1974-11-26 Becker & Van Huellen Asymmetrically loadable press for producing panels
US4441877A (en) * 1981-05-22 1984-04-10 F.IIi Pagnoni S.p.A. Double opening press for manufacturing wood chipboard and fibre-board or their substitutes, provided with four heating platens, in which the two central platens are separated by a rigid plate
US20110229683A1 (en) * 2008-11-04 2011-09-22 Thermoform Nederland B.V. Method for Producing a Wood Wool Construction Element, a Construction Element Obtained Therewith and a Production Facility Therefore
CN104441194A (zh) * 2014-10-21 2015-03-25 德清县兴拓木板厂（普通合伙） 一种用于木屑制板的热压成型机
CN105256666A (zh) * 2015-09-07 2016-01-20 广东华凯科技股份有限公司 一种高密度纤维板生产在线压水装置
CN109940717A (zh) * 2019-04-01 2019-06-28 广东威德力机械实业股份有限公司 压机顶料装置及压机

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102922589A (zh) * 2012-09-22 2013-02-13 青岛国森机械有限公司 一种压制木单板材集成方料用的卧式液压机
CN113319976B (zh) * 2021-05-26 2022-06-10 广东皓升建设工程有限公司 一种节能型混凝土浇筑养护装置及方法

Citations (11)

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Publication number Priority date Publication date Assignee Title
US1677200A (en) * 1921-07-13 1928-07-17 Clifford H Oakley Vulcanizing apparatus
US2618813A (en) * 1950-09-14 1952-11-25 Curtis Companies Inc Method for making cellulosic board
US2655458A (en) * 1951-11-01 1953-10-13 Tectum Corp Method of forming wood wool panels
US2689975A (en) * 1948-06-25 1954-09-28 Leng Franz Maria Apparatus and method for producing building boards
US2873475A (en) * 1955-10-25 1959-02-17 Us Rubber Co Automatic rubber molding machine
US2943347A (en) * 1956-05-07 1960-07-05 Hardie & Co Pty Ltd J Apparatus and method for setting and curing brake lining blanks
US3019478A (en) * 1957-03-21 1962-02-06 Schubert Mat edge press apparatus
US3126578A (en) * 1964-03-31 board forming press and method of making board substitutes
US3157910A (en) * 1961-09-15 1964-11-24 Horst Gerlach Munich Pressing road for pressing plates on support sheets
US3164648A (en) * 1960-10-24 1965-01-05 Casco Ab Method in the production of compression moulded objects
US3206800A (en) * 1961-12-23 1965-09-21 Siempelkamp Gmbh & Co Plant for producing pressed sheets

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE714341C (de) * 1937-09-24 1941-11-27 Schwenk E Fa Vorrichtung zur Herstellung von Presskoerpern, insbesondere Bauplatten
GB665312A (en) * 1949-04-04 1952-01-23 Jean Eugene Edmond Serruys Improved plant for the manufacture of wood fibre slabs

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3126578A (en) * 1964-03-31 board forming press and method of making board substitutes
US1677200A (en) * 1921-07-13 1928-07-17 Clifford H Oakley Vulcanizing apparatus
US2689975A (en) * 1948-06-25 1954-09-28 Leng Franz Maria Apparatus and method for producing building boards
US2618813A (en) * 1950-09-14 1952-11-25 Curtis Companies Inc Method for making cellulosic board
US2655458A (en) * 1951-11-01 1953-10-13 Tectum Corp Method of forming wood wool panels
US2873475A (en) * 1955-10-25 1959-02-17 Us Rubber Co Automatic rubber molding machine
US2943347A (en) * 1956-05-07 1960-07-05 Hardie & Co Pty Ltd J Apparatus and method for setting and curing brake lining blanks
US3019478A (en) * 1957-03-21 1962-02-06 Schubert Mat edge press apparatus
US3164648A (en) * 1960-10-24 1965-01-05 Casco Ab Method in the production of compression moulded objects
US3157910A (en) * 1961-09-15 1964-11-24 Horst Gerlach Munich Pressing road for pressing plates on support sheets
US3206800A (en) * 1961-12-23 1965-09-21 Siempelkamp Gmbh & Co Plant for producing pressed sheets

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3685932A (en) * 1969-08-27 1972-08-22 Dieffenbacker Gmbh Mas Fab J Heating platen press
US3850564A (en) * 1971-12-06 1974-11-26 Becker & Van Huellen Asymmetrically loadable press for producing panels
US4441877A (en) * 1981-05-22 1984-04-10 F.IIi Pagnoni S.p.A. Double opening press for manufacturing wood chipboard and fibre-board or their substitutes, provided with four heating platens, in which the two central platens are separated by a rigid plate
US20110229683A1 (en) * 2008-11-04 2011-09-22 Thermoform Nederland B.V. Method for Producing a Wood Wool Construction Element, a Construction Element Obtained Therewith and a Production Facility Therefore
US9034235B2 (en) * 2008-11-04 2015-05-19 Thermoform Nederland B.V. Method for producing a wood wool construction element, a construction element obtained therewith and a production facility therefore
CN104441194A (zh) * 2014-10-21 2015-03-25 德清县兴拓木板厂（普通合伙） 一种用于木屑制板的热压成型机
CN104441194B (zh) * 2014-10-21 2016-07-06 德清县兴拓木板厂（普通合伙） 一种用于木屑制板的热压成型机
CN105256666A (zh) * 2015-09-07 2016-01-20 广东华凯科技股份有限公司 一种高密度纤维板生产在线压水装置
CN109940717A (zh) * 2019-04-01 2019-06-28 广东威德力机械实业股份有限公司 压机顶料装置及压机

Also Published As

Publication number Publication date
NL6400401A (fr) 1964-07-31
DK113557B (da) 1969-03-31
GB1053833A (fr)
SE303705B (fr) 1968-09-02
AT244199B (de) 1965-12-27
FI41359C (fi) 1969-10-10
CH410744A (de) 1966-03-31
NL147665B (nl) 1975-11-17
FI41359B (fr) 1969-06-30
BE642571A (fr) 1964-05-15
DE1284887B (de) 1968-12-05

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