EP3294539A1 - Presse travaillant en continu - Google Patents

Presse travaillant en continu

Info

Publication number
EP3294539A1
EP3294539A1 EP16723713.0A EP16723713A EP3294539A1 EP 3294539 A1 EP3294539 A1 EP 3294539A1 EP 16723713 A EP16723713 A EP 16723713A EP 3294539 A1 EP3294539 A1 EP 3294539A1
Authority
EP
European Patent Office
Prior art keywords
press
racks
working cylinder
working
frame
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.)
Withdrawn
Application number
EP16723713.0A
Other languages
German (de)
English (en)
Inventor
Reto PATTIS
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.)
Dieffenbacher GmbH Maschinen und Anlagenbau
Original Assignee
Dieffenbacher GmbH Maschinen und Anlagenbau
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 Dieffenbacher GmbH Maschinen und Anlagenbau filed Critical Dieffenbacher GmbH Maschinen und Anlagenbau
Publication of EP3294539A1 publication Critical patent/EP3294539A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • B27N3/24—Moulding or pressing characterised by using continuously acting presses having endless belts or chains moved within the compression zone

Definitions

  • the invention relates to a continuously operating press according to the preamble of patent claim 1.
  • the main differences between these three areas are the different constructions of the press racks, which are designed for the different maximum forces in order to save manufacturing costs.
  • the differences between these areas are plant technology in different material thicknesses of the frame construction, in the number and size of hydraulic cylinders used per row (transverse to the production direction), in the intervals of the necessary support of the press plates by the press racks and the like. It is also known and to a person skilled in the art, in this case a mechanical engineer, to use parts that are as similar as possible to the same areas with the same requirements and to arrange them symmetrically.
  • WO 2005 046 950 A1 has disclosed a particle or chipboard and a method for its production.
  • This particle plate consists of at least three layers, the outer layers are made of fine material, whereas the middle layer consists of coarser material.
  • it is intended to produce the plate basically with low material content, only a higher proportion of material to be scattered at the points of the plate, which is later required for the incorporation of fittings or fasteners to compounds to make with other parts.
  • a basis weight profile is produced across the width or length of the nonwoven, which of course can also generate different nonwoven heights in consequence.
  • the density does not necessarily have to be different. If, however, the nonwoven is pressed uniformly across the width, or passes through a press nip which is uniform across the width, it will have different densities due to the different basis weights.
  • the invention has for its object to provide a continuously operating press, which makes it possible to increase the accuracy of the continuous press in a range of equal requirements.
  • the calibration area at the outlet of the press which is responsible for the dimensional accuracy of the end product, should be improved, in particular for material plates with different density profiles along and / or transversely.
  • the invention is based on a continuous press comprising the following features: two endlessly circulating steel strips pulling the pressed material through the press, forming a press nip between them for pressing the pressed material, - temperature controlled heating plates supporting the steel strips, a rolling bearing support arranged between the steel strips and the heating plates, - Several arranged transversely to the direction of rotation of the steel bands frames for receiving the pressing forces, which are introduced via several arranged in a row hydraulic cylinder per frame for pressing and for adjusting the press nip directly into the hot plate, - An inlet area (KV) for venting the material to be pressed - A press line for the pressed material, which is subdivided into at least two different areas (HD, MD, ND) due to the embodiment of the racks and / or the hydraulic cylinder.
  • KV inlet area
  • a roll bar circulation has been established as a rolling bearing support in this type of presses.
  • Each area has several (press) racks in which several cylinders are arranged, which direct their forces, usually with the interposition of insulation, in the hot plate initiate and adjust the press nip on the back pressure of the material or retraction cylinder.
  • the inlet area is understood in the usual sense as an area, but is to be regarded as a special construction, since here in the foreground is the pressed material by the shortest route to vent and compact. For a finer adjustment of the inlet area but the application of the invention would be quite useful.
  • a continuously operating press has several areas with different pressure ranges, based on the maximum possible pressure.
  • the low-pressure area is in itself the crucial area for the success of the production of a material plate, since a calibration zone is present here. In this the dimensional accuracy of the material plate is set.
  • the press racks are designed and constructed constructively on the basis of the maximum expected pressure.
  • a conventional press about five cylinders are arranged across the width, which in a conventional arrangement provides the ability to regulate the press force profile in five tracks across the width.
  • the inventive solution is obtained in a favorable manner by a small number of working cylinders a larger differentiated arrangement of the adjustable tracks in the press racks.
  • tracks will be formed on working cylinders that are parallel to the direction of rotation or the direction of production, wherein the tracks are identified by at least four racks, as always two racks define a track by the corresponding arrangement of the working cylinder.
  • At least three racks have alternating rows of cylinders.
  • the working cylinders can be double-acting and / or single-acting with retraction cylinders.
  • a measuring device is arranged, which is suitable across the width, preferably divided into the tracks to perform analyzes on the material plate and is in operative connection with a control or regulating device, the measurement results to control signals for one or more racks and / or working cylinder converts and transmits to this.
  • working cylinders with different thicknesses or different diameters can be arranged in a row.
  • Alternatively or cumulatively can be arranged on at least one frame on the edge sides of the heating plate working cylinder with less or greater strength or diameter.
  • provision may be made for at least one working cylinder of lesser thickness or smaller diameter to be arranged on at least one frame with a smaller number of identical working cylinders than on at least one adjacent frame.
  • FIG. 1 shows above a schematic side view of a press 1 with two endlessly rotating steel bands 3 and a production direction 7 from left to right.
  • the steel belts 3 are guided in opposite directions in the direction of rotation 6 to idler pulleys 5 and form between them a press nip for pressing of pressed material 8 and thereby pull the pressed material 8 through the press 1.
  • the steel belts are supported on rolling bearings (not shown) to the in frames. 2 mounted heating plates 10 from which are acted upon in this embodiment from above with working cylinders 4 with pressure, with the working cylinder 4 again supported on the racks 2.
  • the wedge compressor KV can be seen on the inlet side of the press 1.
  • the high-pressure region HD, the medium-pressure region MD and the low-pressure region ND follow.
  • the areas HD, MD and ND differ significantly by the design of the working cylinder 4 and the racks 2 from each other.
  • the high-pressure area HD has the largest working cylinders 4. These are frame plates in the racks 2, which are designed significantly stronger than the frame plates of the racks 2 in the medium pressure range or low pressure range ND. On a detailed design of the racks is omitted, since the distinctive features between the individual areas are so well explained.
  • the size and configuration of the working cylinder varies in the direction of production 7 from a high value to a lower value.
  • the working cylinder 4 are still supported in the high pressure area HD with two strong frame plates, which form a frame 2, in the medium pressure range MD, these two frame plates are much thinner, in the low pressure range ND may even be sufficient only a frame plate for supporting the smaller cylinder. 4 provided.
  • This representation is also reflected in the upper drawing, the side view of the continuous press 1 again.
  • the low pressure region ND is carried out according to the invention, for example, all two frames 2 of the working cylinder 4 are arranged offset.
  • After four racks forms each by two lying in a line cylinder 4 a parallel to the production direction 7 track S, which are numbered from top to bottom with S1, S2, S3, for example.
  • the number of racks 2 may vary depending on the press, but will be significantly more than the exemplary number of the embodiment.
  • the embodiment of the invention are set very few limits, it can for example only ever in pairs on the frames 2 dislocations occur; For example, two rows of racks remain the same in succession, with the next two or at least one next row Rn + 1 being offset with respect to the rams 4 and / or racks 2, and so on.
  • each track has at least one, preferably two, in particular preferably four active working cylinders 4 in one area.
  • the press 1 may be followed by a measuring device 12, in which the compressed material plate 11, preferably in sections over the width, is examined.
  • the one or more measurement results can be automatically transmitted to a control or regulating device 13 and adjusted with respect to the setpoints.
  • the control or regulating device 13 then transmits control or regulating signals to the remote control of the press 1 or directly to the working cylinder 4 and / or the racks 2.
  • a separate area is shown in an enlarged view, are arranged in the working cylinder 4 different thickness or with a different diameter D / d. In particular, it is lifted to the outer diameter, the size of which also has physical effects on the force flow behavior in the press 1.
  • the working cylinder 4 are made smaller on the outer sides of the heating plates 10, ie at the longitudinal edges of the press 1, and thus have a smaller diameter d. This is particularly useful if by displacing the working cylinder 4 with respect to an adjacent frame 2, a working cylinder 4 with a large diameter D is no longer to be arranged in a row R meaningful and lastmanntechnisch meaningful and thus eliminated.
  • the embodiment shown is advantageous if bending of the longitudinal edges of the press 1 or the heating plates 10 is to be avoided.

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Press Drives And Press Lines (AREA)
  • Dry Formation Of Fiberboard And The Like (AREA)

Abstract

L'invention concerne une presse travaillant en continu comprenant : deux bandes d'acier (3) circulant en continu qui tirent le produit à presser (8) à travers la presse (1) et qui constituent entre elles une fente de pressage pour la compression du produit à presser (8) ; des plaques chauffantes (10) thermo-régulables soutenant les bandes d'acier (3) ; un support de palier à roulement agencé entre les bandes d'acier (8) et les plaques chauffantes (8) ; plusieurs châssis (2) agencés transversalement à la direction de circulation (6) des bandes d'acier (3) et destinés à absorber les forces de compression qui sont appliquées directement dans la plaque chauffante (10) pour chaque châssis pour la compression et le réglage de la fente de pressage par l'intermédiaire de plusieurs cylindre de travail (4) hydrauliques agencés en série (R) ; une zone d'entrée (KV) destinée à ventiler le produit à presser (8) ; et un trajet de pressage pour le produit à presser (8), qui peut être divisé en au moins deux zones (HD, MD, ND) différentes du fait du mode de réalisation des châssis (2) et/ou des cylindres hydrauliques (4). L'invention vise à améliorer la capacité de réglage dans une zone (HD, MD, ND). À cet effet, au moins deux châssis (2) sont décalés l'un de l'autre transversalement à la direction de circulation des bandes d'acier (3) et/ou à l'intérieur d'une zone (HD, MD, ND) au moins un cylindre de travail (4) d'un premier châssis (2) est décalé d'au moins un cylindre de travail d'un deuxième châssis (2) dans la direction de circulation (6) de la bande d'acier (3).
EP16723713.0A 2015-05-11 2016-05-11 Presse travaillant en continu Withdrawn EP3294539A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102015107381.1A DE102015107381B4 (de) 2015-05-11 2015-05-11 Kontinuierlich arbeitende Presse
PCT/EP2016/060602 WO2016180899A1 (fr) 2015-05-11 2016-05-11 Presse travaillant en continu

Publications (1)

Publication Number Publication Date
EP3294539A1 true EP3294539A1 (fr) 2018-03-21

Family

ID=56024270

Family Applications (1)

Application Number Title Priority Date Filing Date
EP16723713.0A Withdrawn EP3294539A1 (fr) 2015-05-11 2016-05-11 Presse travaillant en continu

Country Status (4)

Country Link
EP (1) EP3294539A1 (fr)
CN (1) CN107592835B (fr)
DE (1) DE102015107381B4 (fr)
WO (1) WO2016180899A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102018131159A1 (de) 2018-12-06 2020-06-10 Dieffenbacher GmbH Maschinen- und Anlagenbau Kontinuierlich arbeitende Presse mit Rohdichteprofilregelung

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3133817C3 (de) * 1981-08-27 1996-02-08 Siempelkamp Gmbh & Co Vorrichtung zum kontinuierlichen Pressen von Preßgutmatten
US4468188A (en) * 1982-08-24 1984-08-28 G. Siempelkamp Gmbh & Co. Belt-type particleboard press
DE3413396A1 (de) * 1984-04-10 1985-10-24 G. Siempelkamp Gmbh & Co, 4150 Krefeld Anlage fuer das kontinuierliche pressen einer pressgutmatte im zuge der herstellung von spanplatten, faserplatten u.dgl.
NZ229106A (en) * 1988-05-18 1991-02-26 South Australian Timber Corp Rending timber into flexible open latticework web by crushing and laterally spreading between rollers
DE3913991C2 (de) * 1989-04-27 1997-01-16 Dieffenbacher Gmbh Maschf Kontinuierlich arbeitende Presse
DE3914105A1 (de) * 1989-04-28 1990-10-31 Siempelkamp Gmbh & Co Pressanlage zum kontinuierlichen pressen von pressgutbahnen
DE9003298U1 (de) * 1990-03-21 1990-05-23 Maschinenfabrik J. Dieffenbacher Gmbh & Co, 7519 Eppingen Heizplattenpresse in Fensterrahmenbauweise
DE4301594C2 (de) * 1993-01-21 2002-10-31 Dieffenbacher Gmbh Maschf Verfahren und Anlage zur Herstellung von Spanplatten
DE4340982B4 (de) * 1993-12-01 2005-04-21 Dieffenbacher Gmbh + Co. Kg Kontinuierlich arbeitende Presse
DE4405343A1 (de) * 1994-02-19 1995-08-24 Dieffenbacher Gmbh Maschf Preß-/Heizplatte für kontinuierlich arbeitende Pressen
DE19926258B4 (de) * 1999-06-09 2015-07-30 Dieffenbacher GmbH Maschinen- und Anlagenbau Kontinuierlich arbeitende Presse zur Herstellung von Werkstoffplatten
SE526784C2 (sv) * 2003-11-13 2005-11-01 Swedwood Internat Ab Spånskiva samt förfarande för tillverkning av spånskiva
DE102008025176A1 (de) * 2008-05-26 2009-12-03 Dieffenbacher Gmbh + Co. Kg Verfahren zum Betreiben einer kontinuierlich arbeitenden Presse im Zuge der Herstellung von Werkstoffplatten und eine kontinuierlich arbeitende Presse
CN201494033U (zh) * 2009-09-30 2010-06-02 张云和 履带式生物质燃料成型机

Also Published As

Publication number Publication date
CN107592835A (zh) 2018-01-16
WO2016180899A1 (fr) 2016-11-17
DE102015107381A1 (de) 2016-11-17
DE102015107381B4 (de) 2017-06-14
CN107592835B (zh) 2021-02-19

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