EP1415778A2 - Presse et procédé de pressage du bois - Google Patents

Presse et procédé de pressage du bois Download PDF

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Publication number
EP1415778A2
EP1415778A2 EP03024848A EP03024848A EP1415778A2 EP 1415778 A2 EP1415778 A2 EP 1415778A2 EP 03024848 A EP03024848 A EP 03024848A EP 03024848 A EP03024848 A EP 03024848A EP 1415778 A2 EP1415778 A2 EP 1415778A2
Authority
EP
European Patent Office
Prior art keywords
press
pressure
press device
drive
arrangement
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Withdrawn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
EP03024848A
Other languages
German (de)
English (en)
Other versions
EP1415778A3 (fr
Inventor
Gerhard Sauli
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.)
Innotech-Betriebstechnikgesellschaft M B H
Kirchgasser Holz- & Furnierhandel GmbH
Original Assignee
Innotech-Betriebstechnikgesellschaft M B H
Kirchgasser Holz- & Furnierhandel 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 Innotech-Betriebstechnikgesellschaft M B H, Kirchgasser Holz- & Furnierhandel GmbH filed Critical Innotech-Betriebstechnikgesellschaft M B H
Publication of EP1415778A2 publication Critical patent/EP1415778A2/fr
Publication of EP1415778A3 publication Critical patent/EP1415778A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B1/00—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen
    • B30B1/008—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen by a rod swinging between a fixed plane and the ram
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27M—WORKING OF WOOD NOT PROVIDED FOR IN SUBCLASSES B27B - B27L; MANUFACTURE OF SPECIFIC WOODEN ARTICLES
    • B27M1/00—Working of wood not provided for in subclasses B27B - B27L, e.g. by stretching
    • B27M1/02—Working of wood not provided for in subclasses B27B - B27L, e.g. by stretching by compressing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B1/00—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen
    • B30B1/10—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen by toggle mechanism
    • B30B1/16—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen by toggle mechanism operated by fluid-pressure means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B1/00—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen
    • B30B1/40—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen by wedge means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B7/00—Presses characterised by a particular arrangement of the pressing members
    • B30B7/04—Presses characterised by a particular arrangement of the pressing members wherein pressing is effected in different directions simultaneously or in turn

Definitions

  • the invention relates to a pressing device, as in the preamble of claim 1 and a manufacturing facility as described in the preamble of claim 22 and methods, as described in the preambles of claims 27 and 28 and also a component, as described in the preambles of claims 29 and 30.
  • WO 94/20273 A1 describes a method and a device for compression molding of round timber in squared timber by reducing at least one cross-sectional dimension known.
  • a steamed or damp piece of wood becomes transverse to the grain Direction, preferably at room temperature, in a relatively rapid course Pressing process compacted, maintaining it while maintaining the pressing force Exposure to temperature through a heating device over a longer period of time and subsequent cooling to a stabilization in that determined by the press forming Cross-sectional shape reached.
  • Such a method and a device designed for it requires a high level of energy to produce high-quality compressed end products To achieve wood.
  • WO 94/26485 is a method and an apparatus for compacting and drying of squared or board wood described, the compression process on the natural shrinkage caused by the drying process is coordinated.
  • a forming process and a device provided therefor are very complex Process coordination between pressure and temperature exposure and timing.
  • the object of the invention is a press device for the press forming of round or To create squared timber to make a press forming process in a continuous process economical and with a high degree of compaction to achieve high-quality, stable finished parts to reach.
  • This object of the invention is achieved by the characterizing features of claim 1 solved.
  • the surprising advantage of this is that it enables a simple construction of a guide arrangement to achieve a press forming movement with a corresponding forming force is reached and which also blocks the pressure beam in the press position, without maintaining the adjustment force required for the pressing process over a longer period Guaranteed period.
  • This is the pressing device according to the invention, in particular in the press forming of materials, preferably applicable to maintain the reshaped cross-section are to be suspended, e.g. B. during a cooling process from an elevated temperature to normal temperature.
  • a drying process such as for wood, is required.
  • An advantage here is a training according to claim 2, because thereby a forming Output cross-section in both a rectangular and square end cross-section is possible.
  • An embodiment according to claim 3 is advantageous, whereby one is high for the transmission Pressure forces that can be implemented very robustly and can be produced with little effort is achieved.
  • Formations as described in claims 4 and 5 are also advantageous, whereby an increase in the displacement of the pressure bar with the same stroke length of the pressure cylinder is achieved or greater pressing forces can be achieved.
  • training according to claim 10 is also advantageous because it makes it self-sufficient Closing and opening actuation of the pressing device is achieved.
  • control element according to the required relative adjustment of the pressure beam in the two spatial directions is movably mounted.
  • claims 14 to 21 describe advantageous developments which make it possible to to realize such forming processes in a series production.
  • the invention also relates to a production device as in the preamble of the claim 22 described.
  • the object of the invention is also the cycle times for the production of a forming process to minimize compacted compacts.
  • This object of the invention is achieved by the characterizing in claim 22 Characteristics achieved.
  • the surprising advantage here is that a larger number of press frames can be moved clocked with a circulation conveyor and for driving the press frames or the pressure bar only one drive station with the necessary equipment and a release station may be required.
  • the number of on the circulation conveyor arranged press frames can according to the required manipulation time Loading and emptying the press frames and the required dwell time Pressings are determined in the pressed state and thus the output on finished pressings be optimized.
  • the object of the invention is also a method for operating the pressing device for Creating high-strength components.
  • the object of the invention is also a component according to the preamble of the claim 29 to achieve, which has a high strength and resilience as a load-bearing component.
  • a press device 1 for press forming at least one Cross-sectional dimension of a round or square timber 2 shown.
  • a press frame 3 from e.g. four profiles 4 arranged in a square shape, e.g. Square tubes, are each Plate-shaped pressure beams 5 in pairs can be adjusted in guide arrangements 6 stored and delimit a pressing space 8 with pressure surfaces 7 facing each other of approximately square cross-section, but not restricted to a specific one Cross-sectional shape exists - any corner profiles, round profiles etc. are possible.
  • the profiles 4 are connected via struts 9 to achieve the stability of the press frame 3, wherein preferably the struts 9 are welded to the profiles 4.
  • the guide arrangement 6 consists of at least two each Pressure beam 5 spaced-apart pivot levers 10, which are in opposite End regions in pivot bearing 11 on the pressure beam 5 and on the profile 4 of the press frame 3 are pivotally mounted, the arrangement of the pivot bearings 11 on the pressure beam 5 and on the profile 4 provides a parallel alignment of the pivot lever 10.
  • Each pressure beam 5 is preferably an independent drive arrangement 12 e.g. one with a pressure medium operated actuator 13 e.g. assigned a pressure cylinder.
  • the Actuating element 13 acts on the pressure beam 5 in with an adjusting force according to arrow 14 a direction approximately parallel to a longitudinal central axis 15 of the pressing device 1.
  • this causes the formation of the guide arrangements 6 with the pivot levers 10 an adjustment of Pressure bar 5 in the direction of the longitudinal stretching of the longitudinal central axis 15 according to arrow 16 - And in a direction perpendicular thereto, whereby a distance 17 between the mutually facing pressure surfaces 7 of the pressure beam 5 can be changed, but the Print surfaces 7 are guided exactly parallel to each other regardless of the adjustment.
  • variable in its cross-sectional dimensions is formed in order to accommodate the this round or squared timber 2 inserted for press forming from an initial cross section to compress to a final cross section and thus the strength properties of the such shaped round or square timber 2 to increase significantly.
  • pivotability or an adjustment path 22 in which the in Dashed lines shown end position of the pivot lever 10 assume a dead center position.
  • the pivot levers 10 are slightly above a right-angled position Profile 4 or pressure bar 5 adjusted. This causes the press device to lock automatically 1 in the press position by the reaction forces counteracting the press forces of the round or squared timber to be compressed Period of the pressing process without permanent application of the driving force - according to the arrow 14 - be maintained. This also enables the pressure beam 5 to be decoupled from the drive arrangement 12.
  • a release device 25 of the drive arrangement 12 is provided opposite which makes it possible to cancel the dead center position and thus open the baling chamber.
  • FIG. 3 shows a further embodiment of the pressing device 1 for the press forming of at least one cross-sectional dimension e.g. a thickness 26 of the round or square timber 2 in simplified representation shown.
  • the press frame 3 is on a side cheek 27 on the formed by the pivot lever 10 guide assembly 6, as in the previous ones Fig. Described, the pressure beam 5 adjustable.
  • the pressure beam 5 is the actuator 13 of the drive assembly 12 to achieve a Press force according to - arrow 14 - adjusted in the direction of the longitudinal extent of the side cheek 27.
  • An opposite side cheek 27 of the press frame 3 is provided with a linear guide 28 provided which supports a slide 29 adjustable in the direction of the longitudinal extent.
  • the Carriage 29 forms the other opposite pressure surface 7 of pressure beam 5 Printing area 7 out.
  • the pressure bar is in the starting position shown in full lines 5 supported in an end position on the fixed stop 23, in which the pivot lever 10 with a Side surface 30 assume the angle 19 at which the distance 17 between the opposite Printing areas 7 of the initial thickness 26 between them for press forming inserted round or square timber 2 corresponds.
  • the actuator 13 of a pressure supply device 31 e.g.
  • the linear guide 28 as Train roller guides, sliding guides etc.
  • a return of the pressure bar 5 to the starting position for opening the pressing device 1 and removal of the unshaped round or square timber 2 takes place as for example represented by a direction opposite to the drive arrangement on the pressure beam acting release device 25 e.g. can also be loaded with a pressure medium Printing cylinder 34.
  • the actuator 13 of the drive assembly 12 is in the press frame 3, as well as pivotably mounted in its point of application on the pressure beam 5, since during the Retracting and extending movement due to the pivoting of the pressure beam 5 also one Pivotal movement of the control element 13 is required.
  • the pressing device 1 for reducing at least a cross-sectional dimension for round or square timber 2 shown in a simplified representation.
  • the press frame 3 exemplified as a frame structure, are on opposite rack stands 35 running parallel to each other e.g. from U-profiles, molded tubes etc. on mutually facing longitudinal side surfaces 36, the guide arrangements 6 for the adjustable storage of the pressure beam 5 arranged.
  • the guide arrangement 6 is at this formation is formed by a slide element 37.
  • the pressure beam 5 is adjustably mounted, for example by means of guide rollers 38, a guide track 39 of the slide track element 37 when the pressure beam is adjusted 5 in the direction of the longitudinal extension of the frame stand 35 by means of the drive arrangement 12 according to - arrow 14 - in the direction of the longitudinal central axis 15 of the pressing device 1 according to - arrow 16 - is moved.
  • the guide track 39 has in an end region 40, in which the distance 17 is at predetermined minimum dimension is reduced, i.e. a press position is reached, an over-dead center on. Path course through a path recess 41 through the one acting automatically Locking position is reached, in which the maintenance of the pressing effect over a given period of time without permanent exposure to e.g. the Actuator 13 of the drive assembly 12 is effected.
  • This also enables the Drive arrangement 12 independently of the press frame 3 and, if necessary, can be coupled to this can be designed as a drive station 42, which via a coupling device 43 can be coupled to the press frame 3.
  • the drive arrangement 12 is opposite in the press frame 3, the release device formed for example by the pressure cylinder 34 25 provided to cancel the pressing effect.
  • the release device 25 in the form for the drive arrangement 12 as previously described a drive station 42, an identical design for the release device 25 in the form a release station 44 that can be coupled to the press frame 3 as required.
  • the manufacturing device 45 comprises a conveyor device 46 with which a plurality are conveyed cyclically by pressing devices 1 in a circulation process.
  • Conveyors 46 are known from the prior art and can, for example represented by two parallel, endless rotating chain drives 47 are formed, on which the press frames 3 in the conveying direction - according to arrow 48 - transverse direction are arranged.
  • the chain drives 47 become one in each case by the dimension of the press frames 3 predetermined division by means of a drive motor 49 cyclically driven.
  • a restriction on one type of drive motor 49 does not exist and is both an electrical operation and a hydraulic drive but also a linear drive e.g. possible with a pressure cylinder.
  • Essential for series production is the training as already described in the previous figures Press device 1 with an independent and detachable drive station 42 and release station 44 is operated.
  • the release station 44 of the drive station 42 is in the conveying direction according to - arrow 48 - upstream, for example by a cycle space 50.
  • the number of Cycle stations 50 and thus the number of press frames arranged on the chain drives 47 3 and thus the length of the chain drives 47 results from the total to be provided Press time and a manipulation time required to remove the pressed round or Squared timber 2 and new loading preferably in one in the conveying direction - according to the arrow 48 - subordinate cycle position 50.
  • a coordination of the number of on the chain drives 47 arranged press frames 3 then not necessary if the Dwell time on a cycle place 50 to achieve a total required pressing time is chosen longer than the manipulation time for the new loading of the press frames. This enables such a manufacturing device 45 in terms of its technical complexity to optimize according to economic considerations.
  • FIG. 7 A further embodiment of the pressing device 1 is shown in FIG. 7.
  • this training is at least one pressure beam 5 in the press frame 3 via the toggle lever arrangement 51 designed guide arrangement 6, at least two of the same design Toggle lever arrangements 51 between the press frame 3 and the pressure beam 5 available.
  • These each consist of two levers 52, one of which is on the side cheek 27 and the other is pivotally mounted on the pressure beam 5.
  • Another storage the lever 52 is on an average between the side wall 27 and the Pressure beam 5 arranged drive plunger 53 provided by the pressure cylinder 34 with a compressive force, according to arrow 54, approximately parallel to the side wall 27 becomes.
  • the toggle lever arrangement formed by the levers 52 is in a basic position, at that of the press chamber 8 formed between the pressure beams 5 for receiving the one to be reshaped Round or square timber 2 is open, in a V position with one of the pressure cylinder 34 facing opening angle 55 smaller than 180 °.
  • the opening angle widens 55 preferably up to a range greater than 180 ° and this adjustment movement is limited the pivoting angle of the levers 52 through stops 33 on the press frame 3 and / or the pressure bar 5 causes.
  • the toggle lever arrangement 51 as a guide arrangement 6, which supports the pressure beam 5 on the press frame 3 enables a larger adjustment path overall of the pressure bar 5 in the direction of the opposite pressure bar 5 - as in Dashed lines shown - or are therefore smaller dimensions of the entire arrangement possible with an intended adjustment path or a required pressing force.
  • the triangular profiles 56 formed in this way are joined together on cut surfaces 57, 58 connected by means of an adhesive layer 59 to form a plate-shaped strand 60.
  • a plate-shaped strand 60 From this strand 60 through to a surface 61 in a vertical plane and cuts running in the direction of the longitudinal extension of the triangular profiles 56, high-strength Components 62 formed, the strength of which is particularly due to the parallel, preserved ring structure preserved.
  • increasing deformed annual ring structure is also from strand 60 through To look at the finished plate and, of course, the strand 60 already forms such component 62.
  • a further high-strength component 62 is shown in FIG. 10, which is due to the common forming for example four individual ones on the surface area via the adhesive layer 59 connected round or square timbers 2 are formed in the pressing device 1.
  • To the round or square timbers 2 are coated on surfaces 63 with an adhesive and subsequently arranged approximately in a square shape in the press device 1 according to the invention and using a preferably acting on end faces to achieve heat exposed to high-frequency radiation of the forming force and from one, for example round output cross section pressed together and into an approximately square end cross section reshaped.
  • the high strength of the component 62 is due to the compression of the individual Round or square timbers 2 and reshaping the annual ring structure into a parallel one Course corresponding to an outer contour 64 achieved by the deformation and the connection of edge profiles obtained 65 on mutually facing surfaces 61 through the adhesive layer 59 reached.
  • the press frame 3 it is also advantageous in the press frame 3 to arrange at least one microwave generator 66 which, for example, via an adjusting device 67 on the front side - but also on the longitudinal side - on the pressure beam 5 in the pressed position to the required temperature during the pressing time to achieve for the pressing process and the dehumidification and the forming and drying process to accelerate. It is advantageous to arrange a conductive layer 68 from one NE - material on the mutually facing pressure surfaces 7 of the pressure beam 5, whereby a waveguide effect for the energy radiation is achieved.
  • this embodiment is not limited to the design according to FIG. 7, but applicable to all training courses described.
  • FIGS. 1, 2; 3; 4; 5, 6; 7; 8, 9; 10 versions shown form the subject of independent solutions according to the invention.
  • the related Tasks and solutions according to the invention are the detailed descriptions of these Figures can be seen.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
EP03024848A 2002-11-04 2003-10-31 Presse et procédé de pressage du bois Withdrawn EP1415778A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT16552002 2002-11-04
AT16552002A AT413672B (de) 2002-11-04 2002-11-04 Pressvorrichtung sowie verfahren zum pressumformen von profilen aus holz oder holzwerkstoff

Publications (2)

Publication Number Publication Date
EP1415778A2 true EP1415778A2 (fr) 2004-05-06
EP1415778A3 EP1415778A3 (fr) 2008-02-20

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EP03024848A Withdrawn EP1415778A3 (fr) 2002-11-04 2003-10-31 Presse et procédé de pressage du bois

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EP (1) EP1415778A3 (fr)
AT (1) AT413672B (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1847363A1 (fr) * 2006-04-21 2007-10-24 MWT Micro Wood Technology GmbH & Co KEG Dispositif de presse
CZ304024B6 (cs) * 2008-12-02 2013-08-28 Mendelova zemedelská a lesnická univerzita v Brne Zpusob rovnomerného plosného zhustování dreva, zejména smrkového
CN104552545A (zh) * 2015-01-26 2015-04-29 青岛国森机械有限公司 一种用于竹木重组设备的锁具盖板定位放置方法
CN106738167A (zh) * 2016-11-16 2017-05-31 湖南欣龙机床有限公司 三节三开竹砧菜板模具及使用方法
RU2694434C1 (ru) * 2018-06-20 2019-07-16 Федеральное государственное бюджетное образовательное учреждение высшего образования "Вятский государственный университет" (ВятГУ) Сборный пуансон для штампования древесины
DE102022123936A1 (de) 2022-09-19 2024-03-21 Peter Vente GmbH & Co. KG Vorrichtung zur Aufbereitung von langgestreckten Holzelementen

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109283048A (zh) * 2018-06-27 2019-01-29 宜华生活科技股份有限公司 一种木材表面密实的工艺方法及装置

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2159456A (en) * 1984-06-01 1985-12-04 Kenneth Harold George Ashbee Compression moulding
DE3921368A1 (de) * 1989-06-29 1990-10-18 Erwin Dimter Durchlauffugenverleimanlage
EP0537646A1 (fr) * 1991-10-16 1993-04-21 Hideo Hoshi Vérin hydraulique
DE4315464A1 (de) * 1993-02-04 1994-08-11 B & B Maschinenbau Gmbh Vorrichtung zum Pressen eines vorzugsweise quaderförmigen Preßlings
CA2098520A1 (fr) * 1993-06-16 1994-12-17 Peter J. Prihoda Procede et installation pour le formage de produits de bois composites
WO1995002492A1 (fr) * 1993-07-12 1995-01-26 Ibiden Co., Ltd. Bois de construction stratifie, procede et dispositif de production
JP2000141320A (ja) * 1998-11-11 2000-05-23 Ishikawajima Harima Heavy Ind Co Ltd 軟質材強化装置
US20020148532A1 (en) * 2000-05-24 2002-10-17 Kimiyoshi Kitazawa Prismatic wood compression molding method and compression molding device therefor
WO2002096608A1 (fr) * 2001-05-30 2002-12-05 Technische Universität Dresden Profile en bois et son procede de production

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2159456A (en) * 1984-06-01 1985-12-04 Kenneth Harold George Ashbee Compression moulding
DE3921368A1 (de) * 1989-06-29 1990-10-18 Erwin Dimter Durchlauffugenverleimanlage
EP0537646A1 (fr) * 1991-10-16 1993-04-21 Hideo Hoshi Vérin hydraulique
DE4315464A1 (de) * 1993-02-04 1994-08-11 B & B Maschinenbau Gmbh Vorrichtung zum Pressen eines vorzugsweise quaderförmigen Preßlings
CA2098520A1 (fr) * 1993-06-16 1994-12-17 Peter J. Prihoda Procede et installation pour le formage de produits de bois composites
WO1995002492A1 (fr) * 1993-07-12 1995-01-26 Ibiden Co., Ltd. Bois de construction stratifie, procede et dispositif de production
JP2000141320A (ja) * 1998-11-11 2000-05-23 Ishikawajima Harima Heavy Ind Co Ltd 軟質材強化装置
US20020148532A1 (en) * 2000-05-24 2002-10-17 Kimiyoshi Kitazawa Prismatic wood compression molding method and compression molding device therefor
WO2002096608A1 (fr) * 2001-05-30 2002-12-05 Technische Universität Dresden Profile en bois et son procede de production

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1847363A1 (fr) * 2006-04-21 2007-10-24 MWT Micro Wood Technology GmbH & Co KEG Dispositif de presse
CZ304024B6 (cs) * 2008-12-02 2013-08-28 Mendelova zemedelská a lesnická univerzita v Brne Zpusob rovnomerného plosného zhustování dreva, zejména smrkového
CN104552545A (zh) * 2015-01-26 2015-04-29 青岛国森机械有限公司 一种用于竹木重组设备的锁具盖板定位放置方法
CN104552545B (zh) * 2015-01-26 2016-05-04 青岛国森机械有限公司 一种用于竹木重组设备的锁具盖板定位放置方法
CN106738167A (zh) * 2016-11-16 2017-05-31 湖南欣龙机床有限公司 三节三开竹砧菜板模具及使用方法
RU2694434C1 (ru) * 2018-06-20 2019-07-16 Федеральное государственное бюджетное образовательное учреждение высшего образования "Вятский государственный университет" (ВятГУ) Сборный пуансон для штампования древесины
DE102022123936A1 (de) 2022-09-19 2024-03-21 Peter Vente GmbH & Co. KG Vorrichtung zur Aufbereitung von langgestreckten Holzelementen

Also Published As

Publication number Publication date
AT413672B (de) 2006-04-15
EP1415778A3 (fr) 2008-02-20
ATA16552002A (de) 2005-09-15

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