WO2016142497A1 - Équipement pour la fabrication de panneaux contreplaqués à partir de plis empilés - Google Patents

Équipement pour la fabrication de panneaux contreplaqués à partir de plis empilés Download PDF

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Publication number
WO2016142497A1
WO2016142497A1 PCT/EP2016/055209 EP2016055209W WO2016142497A1 WO 2016142497 A1 WO2016142497 A1 WO 2016142497A1 EP 2016055209 W EP2016055209 W EP 2016055209W WO 2016142497 A1 WO2016142497 A1 WO 2016142497A1
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WO
WIPO (PCT)
Prior art keywords
stack
veneers
installation according
press
stacks
Prior art date
Application number
PCT/EP2016/055209
Other languages
German (de)
English (en)
Inventor
Detlef Kroll
Original Assignee
Dieffenbacher Maschinenfabrik Gmbh
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 Maschinenfabrik Gmbh filed Critical Dieffenbacher Maschinenfabrik Gmbh
Publication of WO2016142497A1 publication Critical patent/WO2016142497A1/fr

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27D—WORKING VENEER OR PLYWOOD
    • B27D3/00—Veneer presses; Press plates; Plywood presses
    • B27D3/02—Veneer presses; Press plates; Plywood presses with a plurality of press plates, i.e. multi- platen hot presses
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27D—WORKING VENEER OR PLYWOOD
    • B27D1/00—Joining wood veneer with any material; Forming articles thereby; Preparatory processing of surfaces to be joined, e.g. scoring
    • B27D1/04—Joining wood veneer with any material; Forming articles thereby; Preparatory processing of surfaces to be joined, e.g. scoring to produce plywood or articles made therefrom; Plywood sheets

Definitions

  • the invention relates to a plant for the production of material panels of stacked veneers according to the preamble of claim 1.
  • so-called plywood wood to wood panels has long been known prior art.
  • Abstracted are several layers of glued wood, preferably boards or veneers superimposed and pressed.
  • the two types of veneer plywood and veneer plywood differ in that the veneer plywood the alignment of the individual layers offset from each other, preferably crosswise, are arranged so that you get the same tensile and bending strengths in all orientations.
  • the crosswise gluing of the veneers ensures stability and stability, because the wood is limited in its natural properties of swelling and shrinkage, especially in temperature differences.
  • the invention understands material boards in particular laminated veneer lumber (meaning preferably all ply woods) which has a variety of uses. It can be configured and / or further processed after or during manufacture by means of simple adjustments.
  • newly developed glues preferably allow the veneers to be aligned in parallel, so that the production of laminated veneer lumber becomes more important.
  • Veneers are understood by a specialist to be one to several millimeters thick sheets of wood. These can be made of different woods and using different techniques, usually adapted to the present woods. The most widely used manufacturing processes are the knife and the peeling process.
  • a veneer which is preferably used in timber construction, consists of about 3 mm thick peeled veneer softwood and is pressed with phenolic resin to plates or carriers to beams.
  • Compression takes place either intermittently in floor presses or continuously in double belt presses, which are also already known and introduced in the woodworking industry.
  • the veneers are delivered in stacks on pallets, fed to a gluing device in a separating station and then combined to form veneer packages. Merging can be done in several ways, for example, individually and intermittently with lifting devices as described in US 4,797,169 A, or in a semicontinuous manner with conveyor belts described in. It is common in this art that a strand is to be laid out of the veneers, either sawn or fed as a continuous strand of a press. For this purpose, awkward ramps are applied to the strand, which are arranged either rising in or against the production direction in order to achieve a continuous connection of the strand through the steps.
  • the invention has for its object to provide a system for the production of material panels of stacked veneers, can be produced with the cost and flexibility.
  • the system based on the given veneers different types of material plates to produce, in particular, the transport from a stacking station to form stacks of veneers to the press to improve and designed to be flexible.
  • a plant for producing material plates from stacked veneers essentially comprises a transport device for veneers to a stacking device for producing a stack of these veneers and at least one main press for producing a compressed material plate from the stack of veneers formed.
  • the stacks are usually characterized by the fact that the top veneer, in contrast to the bottom veneer has no surface gluing.
  • a non-glued veneer between glued veneers is arranged on the transport device for stacking device at predetermined intervals, wherein the unembellished veneer then forms the top layer of a stack and thus the subsequent material plate.
  • the solution to the problem for the system is that a device for automated transfer of the stack to the main press is arranged in the system.
  • the individual manufacturing steps can be automated in an advantageous manner to make the entire process more efficient and cost-effective. It has also proved to be advantageous that in the absence of pre-pressing the veneers a much faster transport and thus shorter residence times of the veneers from the gluing to the main press are possible. This allows in particular the use of highly reactive glues, which can lead to a significant increase in production over the conventional methods and equipment.
  • the device for transferring the stack to the main press comprises at least one transport device.
  • the device comprises a circulation for stack carriers.
  • the stack carriers are suitable to receive the stack formed in or after the stacking device and to transport up to the main press.
  • the stack carrier can also be moved directly into the main press with a resting stack, emptying there the stack in the main press or remain during the pressing process on site and ensure the discharge of the compressed stack respectively the material plate.
  • the apparatus may further comprise a second stacking device for forming a package from the stacks.
  • the first stacking device could also be suitable for forming packages of several stacks. These packages can, for example, be pressed in a suitable one-day main press to material plates and then, because of lack of glue between the adjacent layers of a stack, separated into individual material plates. Preferably, however, it is provided to spend these packages for a suitable automated storage or directly automated to a separation device and to separate them again there to packages.
  • the stacking device may be suitable to attach to a package markings to identify the separation point between the stacks. These markings are suitable in the automated separation device to perform the separation exactly at the separation point. When a compression of the package in the main press, these markers are particularly suitable to separate the formed material plates more accurately from each other without leaving excessive damage to the separation points.
  • the device may comprise a pre-press for compressing the veneers, preferably for forming a compact from a stack or from a package consisting of several stacks.
  • a pre-press for compressing the veneers, preferably for forming a compact from a stack or from a package consisting of several stacks.
  • Such a pre-press can be designed, for example, as a cycle press or as a single or multiple roll mill.
  • the device may comprise a separating device for dividing the compressed material from the pre-press into individual stacks again.
  • This separating device can have means for automated detection of the separation points between the stacks and is particularly preferably the mechanisms for separating the individual stacks from each other automatically control.
  • the main press can be designed as a multi-daylight press.
  • This main press may alternatively or in combination have its own loading and unloading device for automated feeding of the main press.
  • a further embodiment of the device is that for the insertion or arrangement of a release agent between the stacks of a package, an automated device is arranged, which is particularly preferably arranged in the first or second stacking device.
  • the stack carrier can be arranged as a release agent in the package, so that the stack carrier used in the package formation not only serve as a carrier of the package but are stacked as a release agent in the package.
  • the stack carrier are formed substantially flat than the format of the stack of veneers.
  • a laying device for supporting a compression means may be arranged on the stack in the automated device of the system.
  • the compression means are heavy and flat and suitable to suppress or even pre-press a stack of veneers.
  • These compression means can also act as a release agent and be marked or recognizable.
  • the funds used as a stack carrier can also be used as a compression means, since in the system usually enough of it are available, in particular to this meantime while the production continues to be able to clean.
  • suitable and automatable transport devices for transporting the veneers or the stacks, the packages, the compresses and / or the stack carriers can be arranged in the device between the individual individual devices.
  • the stack is placed on the stack carrier in or after a stacking device, then a compression means, preferably a stack carrier is deposited as a cover on the stack, so that this compresses the individual layers veneers by its weight and during the automated transport to the main press.
  • a compression means preferably a stack carrier is deposited as a cover on the stack, so that this compresses the individual layers veneers by its weight and during the automated transport to the main press.
  • This stack with double-sided stack carriers, can also be compressed in a pre-press, if the weight of the compression / staple carrier is not sufficient to compress the stack so that it can easily get into the press nip of the main press.
  • the stack can be pressed with or without the stack carriers / compression means. By arranging this "cover layer" (compression means) a springing of the veneer stack is avoided until the press and even main presses with a small opening width of the press nip can easily press a high stack.
  • Figure 1 shows a schematic structure of a system from the provision of glued and unembossed veneers on the stacking, the automated transfer device and the main press for the production of veneered material panels and an alternative circulation for stacking carrier between the stacking and the main press and after Figure 2 shows a schematic structure of a system according to Figure 1 with a variety of possible variants in terms of the design of the automated device between the stacking device and the main press.
  • an exemplary system 1 is shown by the stacking device 8 of veneers 2, 10 to create a material plate 15 after the main press 16.
  • the device V can also have a circulation 21, the stack carrier 20, on which at suitable location in the system 1, preferably in the stacking device 8, equipped with stacks 3 of the veneers.
  • the circulation 21 may, alternatively for handling the stacks 3 without a base support, provide for automated transport of the stacks 3 to or into or even through the main press 16.
  • the stack carriers 20 preferably have holders for press plates, which are pressed with or without grain in the main press 16. Alternatively, of course, the stack carrier 20 itself be designed as press plates.
  • FIG. 21 For the sake of clarity, an alternative marking of a circulation 21 for stack carrier 20 has been dispensed with in FIG. It should be noted, however, that this can also be provided in full in all combinations, which represents the figure 2. It should also be noted that in order to avoid a multitude of drawings, an exemplary installation 1 is shown that represents almost all features of the subject of the invention, but the individual features can be left alone and realized in any combination as a device V.
  • FIG. 2 therefore shows on the top left the provision of veneers by means of one or more feed devices 4 to a transport device 5.
  • different veneers usually of different orientation and quality, are provided in a predetermined order on the transport device 5 and through a gluing device 6, executed here as DINbeleimung, driven and passed as glued veneers 10 to the transport device 7.
  • a further feeding device 4 not shown, a non-glued veneer 2 is now inserted in a predetermined sequence in the flow of veneers 10, which will form the unglued cover veneer of a finished material plate 15.
  • the transport device 7 transfers the veneers 2, 10 to the stacking device 8, which produces the stack 3 from these.
  • the stack 3 consists of an unspecified number of veneers 10 and a non-glued veneer 2 as a cover veneer.
  • the stack 3 can now be introduced according to the invention with the transport device 9 directly into the main press 16 and pressed.
  • the device V can now have a further stacking device 23 which forms packages 12 from the stacks 3, which consist of at least two stacks 3. Between the stacks is formed by the overhead unglued veneer 2 of the lower stack 3 from a separation point 25, at which the stack 3 can be separated again, since the separation point is not glued.
  • the stacking device 8 may be suitable to perform a package formation. This may be necessary in order to achieve higher cycle rates or to be able to form higher parcels 12 in a system if, for example, only a few veneers in a stack 3 are to be pressed. If now a second stacking device 23 is used, this will subsequently require a further transport device 13, which can automatically transfer the packets 12 into a main press 16 for pressing. In this case, after the main press 16, the package would have to be separated from several material plates. Preferably, however, the package is divided again before the main press in a separating device 14 and the stack 3 is pressed individually in a one-day cycle press or in a multi-day press. It can also be provided that a plurality of main presses 16 are arranged in the system, which must be charged.
  • the stack 3 may be necessary to pre-press the stack 3 in a pre-press 18. This is usually necessary if by a plurality of veneers 10, the stack 3 apply relatively high or very wavy veneers are present and the stack 3 is too high for the press nip between the heating plates of the main press 16.
  • a circulation 21 for stack carrier 20 can also be integrated here.
  • the stack carriers are also introduced in the package 12, so that at least one stack carrier is arranged as release agent in the separation point 25 and the separation device 14 facilitates the separation of the stack 3 from each other and in particular simplifies the automation.
  • the release agents can also be designed differently, from powders to thin paper, cardboard, foil or sheet metal.
  • a laying device can be provided, which applies compression means to each stack 3 or introduces a compression means between the stack 3 during the formation of the package 12 as a release agent.
  • the compression means is preferably suitable by its own weight to bring about a compression of the stack 3 or of the pact 12.
  • the stack 3 can be automatically introduced directly into the main press 16 with the superposed compression means and pressed, and be removed before the main press 16 again.
  • the goal of the compression means is to be able to feed a small press nip of the main press 16 in a targeted manner, without retaining upstanding veneers.
  • the compression means which may be designed as a press plate, serve to simplify the transport.
  • the compression means can again be a stack carrier, which could greatly simplify the automation of the system, since the circulation would already be present and the means in the system which operate the stack carriers 20 would be the same as for a circulation of the compression means.

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Manufacturing & Machinery (AREA)
  • Veneer Processing And Manufacture Of Plywood (AREA)

Abstract

L'invention concerne un équipement pour la fabrication de panneaux contreplaqués à partir de plis empilés, qui comprend un dispositif de transport (7) de plis (2, 10) vers un dispositif d'empilement (8) pour la réalisation d'un empilage (3) de plis (2, 10) et au moins une presse principale (16) pour la fabrication d'un panneau de contreplaqué comprimé (15) à partir de l'empilage (3) de plis (2, 10) formé. L'invention est principalement caractérisée en ce qu'un dispositif (V) permettant le transfert automatique de l'empilage (3) vers la presse principale (16) est disposé dans ledit équipement.
PCT/EP2016/055209 2015-03-10 2016-03-10 Équipement pour la fabrication de panneaux contreplaqués à partir de plis empilés WO2016142497A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102015103524.3A DE102015103524A1 (de) 2015-03-10 2015-03-10 Anlage zur Herstellung von Werkstoffplatten aus gestapelten Furnieren
DE102015103524.3 2015-03-10

Publications (1)

Publication Number Publication Date
WO2016142497A1 true WO2016142497A1 (fr) 2016-09-15

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Application Number Title Priority Date Filing Date
PCT/EP2016/055209 WO2016142497A1 (fr) 2015-03-10 2016-03-10 Équipement pour la fabrication de panneaux contreplaqués à partir de plis empilés

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DE (2) DE102015103524A1 (fr)
WO (1) WO2016142497A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1147743B (de) * 1959-12-24 1963-04-25 Eugen Siempelkamp Verfahren und Anlage zum Herstellen von mehrschichtigen Platten, insbesondere Sperrholzplatten, beschichteten Span- und Faserplatten, Tuerplatten od. dgl.
DE1900771U (de) * 1964-02-27 1964-09-17 Josef Heim Automatische belegungs-, beschickungs- und entleerungsvorrichtung fuer mehretagen-furnierpressen der moebel- und sperrholzindustrie.
US4797169A (en) 1986-07-02 1989-01-10 Hashimoto Denki Co. Ltd. Method and apparatus for assembling veneer sheet into a plywood
DE102009021367A1 (de) * 2009-05-17 2010-11-18 Dieffenbacher Maschinenfabrik Gmbh Verfahren und Anlage zur Herstellung von Schichtholz

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1147743B (de) * 1959-12-24 1963-04-25 Eugen Siempelkamp Verfahren und Anlage zum Herstellen von mehrschichtigen Platten, insbesondere Sperrholzplatten, beschichteten Span- und Faserplatten, Tuerplatten od. dgl.
DE1900771U (de) * 1964-02-27 1964-09-17 Josef Heim Automatische belegungs-, beschickungs- und entleerungsvorrichtung fuer mehretagen-furnierpressen der moebel- und sperrholzindustrie.
US4797169A (en) 1986-07-02 1989-01-10 Hashimoto Denki Co. Ltd. Method and apparatus for assembling veneer sheet into a plywood
DE102009021367A1 (de) * 2009-05-17 2010-11-18 Dieffenbacher Maschinenfabrik Gmbh Verfahren und Anlage zur Herstellung von Schichtholz

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DE202015101224U1 (de) 2016-06-13
DE102015103524A1 (de) 2016-09-15

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