EP0909620B1 - Kontinuierliche Presse zum Verpressen von Pressgutmatten zu Pressgutplatten - Google Patents
Kontinuierliche Presse zum Verpressen von Pressgutmatten zu Pressgutplatten Download PDFInfo
- Publication number
- EP0909620B1 EP0909620B1 EP98117030A EP98117030A EP0909620B1 EP 0909620 B1 EP0909620 B1 EP 0909620B1 EP 98117030 A EP98117030 A EP 98117030A EP 98117030 A EP98117030 A EP 98117030A EP 0909620 B1 EP0909620 B1 EP 0909620B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- press
- feed
- inlet
- cylinder
- platens
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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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 continuous press for pressing pressed material mats into pressed material boards in the course of the production of chipboard, fiberboard and other wood-based panels, with press lower part and upper press part, in the lower part and upper part of the press, endlessly rotating steel press belts, and with an inlet mouth, wherein a heatable press plate is arranged in the lower press part and in the upper press part and adjoin the press plates protruding heatable inlet plates to form the inlet mouth, furthermore the steel sheet press belts are supported on the press plates and inlet plates with the interposition of rolling elements, and also a device for adjusting the Inlet edge of the inlet mouth and at least one device for adjusting the inlet contour of the inlet mouth are provided.
- Such a press is known in which the Device for setting the inlet contour one Has contour slide on one of the concerned Guide plate assigned press spar and with With the help of an inlet contour actuator in the inlet direction is adjustable.
- the inlet contour slide points to Inlet plate a plurality of transverse to the direction of entry trending steps that one belong to the contour-defining support staircase.
- the Support stairs are assigned at least one counter bar, which is connected to the relevant inlet plate.
- the device for adjusting the inlet plate is the counter bar can be selected against one of the levels of Support stairs can be put on. In this way, the Leading edges of the inlet mouth to different adjust operational conditions.
- that is Adjustment of the bending lines of the relevant inlet plate only gradually and consequently in limited areas possible, with only a trumpet-shaped Enema mouth can be realized (see. DE 44 33 641).
- a continuous press is also known at which is the top of the two heated inlet plates divided into plate sections to form joints is, so that the inlet contour of the inlet mouth in the Hinge areas has kinks. This also applies to the transition area between the upper inlet plate and the subsequent upper press plate.
- This known embodiment is by means of hydraulic Actuators only the angular position of the plate sections adjusted around the axes of rotation of the joints. Especially problematic is the fact that the assigned Sheet steel press belt when driving over the kinks experiences corresponding bends and consequently one is subject to immediate wear and tear (cf. DE 195 18 879).
- the invention has for its object a continuous Press the described above
- To create embodiment in which the Inlet contour of the inlet mouth is steplessly generated can set any continuous bending lines and even an almost parallel position from the top inlet plate and lower inlet plate up to the neutral zero line of the press inlet also for pressing extreme thin pressed material mats to perfect pressed material plates under Consideration of high production speeds is adjustable.
- the invention solves this problem with a generic one continuous press in that the device for Setting the inlet contour a plurality of Cylinder piston assemblies has that the cylinder piston assemblies in a predetermined distribution on the one hand to the upper and / or lower inlet plate, on the other hand to the Upper press part and / or lower press part are articulated, and that the cylinder piston assemblies to a computer-controlled or -controlled hydraulic system connected are.
- the cylinder piston arrangements are preferably around double-acting differential cylinders.
- any and continuous bend lines are related on the upper inlet plate and possibly also in relation to the lower inlet plate by means of the tensile and / or compressive forces generating differential cylinder set so that the inlet contour in adaptation to the respective operating conditions every required bending radius can accept and therefore a fully variable press inlet is available.
- that of the Press plates formed a press zone from the inlet plates formed clamping zone upstream. Such Clamping zone is required to e.g. B. in the manufacture of Press plates made of extremely thin mats with a Mat thickness of, for example, only 3 mm and below Consideration of high production speeds up to 1,000 mm / s to avoid mat breaking.
- the upper inlet plate has a bending radius to the effect that between the upper Inlet plate and the lower inlet plate an almost Parallel position is reached, which extends up to extends below the neutral zero line of the press inlet. Almost parallel location means that a slight taper for running in and lightly clamping the relevant Pressed material mats is set.
- the inlet mouth or his Inlet contour can also within the scope of the invention as before for the production of thick pressed boards in the previous mode of operation set trumpet-shaped be such that the compression from above and done almost evenly at the bottom. -
- the setting of the Inlet contour depends on the to pressing mats and especially the mat thickness.
- the mat values for the suitable bending lines or Bending radii of the upper and, if necessary, lower inlet plate can be done using a conventional path measurement technique record and send it to a computer.
- This calculator determines the necessary correction values and influences the hydraulic control or regulation of the differential cylinders in such a way that the inlet plate in question or plates in the desired by tensile and compressive forces Be brought into shape.
- differential cylinders are preferred in longitudinal rows and possibly transverse rows on the top and / or articulated lower inlet plate and have the inlet plates in the longitudinal direction of the board or in the direction of entry running channels for the heating medium.
- the embodiment is based on the knowledge that longitudinally drilled inlet plates in the course of adjustment the bending lines or bending radii of the differential cylinders generated bending moments as opposed to transverse drilled inlet plates taking into account the occurring voltage states take up much cheaper can.
- Another embodiment of the invention provides that the Differential cylinder gimbal on the upper and / or lower inlet plate and on the press top and / or Press lower part are hinged, and that the articulation of the Differential cylinder on the upper and / or lower Inlet plate with thermal insulation is made.
- the gimbals Joints of the differential cylinders with interposition supported by insulating material against the inlet plates be, which in turn with the interposition of Thermal insulation on frame parts of press top and Press base can support.
- the Hydraulic supply to the differential cylinder under Interposition of a cooling device with a heat exchanger to be done taking into account the heated inlet plates occurring relatively high Temperatures ensure that the differential cylinders work properly to ensure.
- This press instructs Press lower part 3 and an upper press part 4, namely with endless in the lower press part 3 and upper press part 4 circumferential sheet steel press belts 5 and with a Inlet jaw E.
- a heatable press plate 6, 7 is arranged, of which the upper press plate according to the embodiment 6 against the lower press plate 7 for setting the Press nip is adjustable. Press plates 6, 7 close heatable cantilever on the inlet side Inlet plates 8, 9 to form the inlet mouth E.
- the steel sheet press belts 5 are on the press plates 6, 7 and Inlet plates 8, 9 with the interposition of rolling elements 10 or rolling rods supported. Furthermore, a device 11 for adjusting the inlet edges of the inlet mouth E and a device 12 for setting the inlet contour of the inlet mouth E intended.
- the device 12 for setting the Inlet contour has a plurality of double-acting Differential cylinders 13 on.
- the differential cylinders 13 are in a predetermined distribution and according to Embodiment on the one hand to the upper inlet plate 8 and on the other hand articulated to the press upper part 4. Further are the differential cylinders 13 to a computer-controlled or regulated hydraulic system 14 connected.
- the Computer 15 and a measuring system 16, which the Mat thickness of the mats to be pressed 2 measures and forwarded to the computer 15 are only indicated.
- the differential cylinders 13 are in longitudinal rows and Cross rows hinged to the upper inlet plate 8. At least this upper inlet plate 8 is drilled lengthways and consequently points in the longitudinal direction of the plate or in the direction of entry extending channels 18 for the heating medium. Due to the longitudinal channels 18 is the upper inlet plate for Absorption of much higher bending stresses than with transverse channels set up.
- the differential cylinders 13 are gimbaled on the upper inlet plate 8 and articulated on the press upper part 4.
- the linkage 19 the differential cylinder 13 on the upper inlet plate 8 is with the interposition of thermal insulation 20th realized.
- the hydraulic supply to the Differential cylinder 13 with the interposition of one Cooling device done with a heat exchanger, which is not is shown.
- the lower inlet plate 9 is below Interposition of thermal insulation 20 in the lower press part 3 supported.
- the mouth has E a trumpet-like inlet contour for the Pressing of relatively thick pressed material mats 2.
- 2 is one of the pressing zone 21 upstream Clamping zone 22 realized. After that form the top one Inlet plate 8 and the lower inlet plate 9 in almost Parallel position an inlet contour with an inlet of only low taper for relatively thin pressed material mats 2a.
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Wood Science & Technology (AREA)
- Forests & Forestry (AREA)
- Dry Formation Of Fiberboard And The Like (AREA)
- Press Drives And Press Lines (AREA)
- Veneer Processing And Manufacture Of Plywood (AREA)
- Control Of Presses (AREA)
- Treatment Of Fiber Materials (AREA)
- Inking, Control Or Cleaning Of Printing Machines (AREA)
- Press-Shaping Or Shaping Using Conveyers (AREA)
Description
wobei im Pressenunterteil und im Pressenoberteil jeweils eine beheizbare Preßplatte angeordnet ist und sich an die Preßplatten einlaufseitig vorkragende beheizbare Einlaufplatten unter Bildung des Einlaufmauls anschließen, wobei ferner die Stahlblechpreßbänder an den Preßplatten und Einlaufplatten unter Zwischenschaltung von Wälzkörpern abgestützt sind, wobei außerdem eine Vorrichtung zur Einstellung der Einlaufkante des Einlaufmauls und zumindest eine Vorrichtung zur Einstellung der Einlaufkontur des Einlaufmauls vorgesehen sind.
- Fig. 1
- ausschnittsweise eine kontinuierliche Presse in Seitenansicht mit trompetenförmiger Einlaufkontur des Einlaufmauls,
- Fig. 2
- den Gegenstand nach Fig. 1 in schematischer Seitenansicht mit einer nahezu Parallellage der Einlaufplatten mit unter die neutrale Nullinie des Presseneinlaufs heruntergebogener oberer Einlaufplatte für das Verpressen extrem dünner Preßgutmatten und
- Fig. 3
- einen Querschnitt A-B durch die obere Einlaufplatte mit angedeutem Stahlblechpreßband.
Claims (4)
- Kontinuierliche Presse zum Verpressen von Preßgutmatten zu Preßgutplatten im Zuge der Herstellung von Spanplatten, Faserplatten und anderen Holzwerkstoffplatten, mit Pressenunterteil (3) und Pressenoberteil (4), im Pressenunterteil und Pressenoberteil endlos umlaufenden Stahlblechpreßbändern (5) und mit einem Einlaufmaul (E),
wobei im Pressenunterteil (3) und im Pressenoberteil (4) jeweils eine beheizbare Preßplatte (6, 7) angeordnet ist und sich an die Preßplatten einlaufseitig vorkragende beheizbare Einlaufplatten (8, 9) unter Bildung des Einlaufmauls (E) anschließen,
wobei die Stahlblechpreßbänder (5) an den Preßplatten (6, 7) und Einlaufplatten (8, 9) unter Zwischenschaltung von Wälzkörpern (10) abgestützt sind,
wobei ferner eine Vorrichtung (11) zur Einstellung der Einlaufkanten des Einlaufmauls und zumindest eine Vorrichtung (12) zur Einstellung der Einlaufkontur des Einlaufmauls vorgesehen sind, dadurch gekennzeichnet, daß die Vorrichtung (12) zur Einstellung der Einlaufkontur eine Mehrzahl von Zylinderkolbenanordnungen, z. B. von doppeltwirkenden Differentialzylindern (13) aufweist, daß die Zylinderkolbenanordnungen (13) in vorgegebener Verteilung einerseits an die obere und/oder untere Einlaufplatte (8, 9) anderseits an das Pressenoberteil (4) und/oder Pressenunterteil (3) angelenkt sind, und daß die Zylinderkolbenanordnungen (13) an ein rechnergesteuertes oder geregeltes Hydrauliksystem (14) angeschlossen sind. - Presse nach Anspruch 1, dadurch gekennzeichnet, daß die Zylinderkolbenanordnungen (13) in Längsreihen und gegebenenfalls Querreihen an der oberen und/oder unteren Einlaufplatte (8, 9) angelenkt sind und die Einlaufplatten (8, 9) in Plattenlängsrichtung verlaufende Kanäle (18) für das Heizmedium aufweisen.
- Presse nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Zylinderkolbenanordnungen (13) kardanisch an der oberen und/oder unteren Einlaufplatte (8, 9) und an dem Pressenoberteil (4) und/oder Pressenunterteil (3) angelenkt sind, und daß die Anlenkung (19) der Zylinderkolbenanordnungen (13) an der oberen und/oder unteren Einlaufplatte (8, 9) unter Zwischenschaltung von Wärmeisolierungen (20) vorgenommen ist.
- Presse nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß die Hydraulikversorgung der Zylinderkolbenanordnungen (13) unter Zwischenschaltung einer Kühleinrichtung mit einem Wärmetauscher erfolgt.
Applications Claiming Priority (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19740325A DE19740325C5 (de) | 1997-09-13 | 1997-09-13 | Kontinuierliche Presse zum Verpressen von Preßgutmatten zu Preßgutplatten |
DE19740325 | 1997-09-13 | ||
DE19829742 | 1998-07-03 | ||
DE19829741 | 1998-07-03 | ||
DE19829742A DE19829742C1 (de) | 1998-07-03 | 1998-07-03 | Kontinuierliche Presse |
DE19829741A DE19829741C1 (de) | 1998-07-03 | 1998-07-03 | Verfahren und Presse zum Verpressen, insbesondere kontinuierlichen Verpressen |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0909620A2 EP0909620A2 (de) | 1999-04-21 |
EP0909620A3 EP0909620A3 (de) | 1999-05-19 |
EP0909620B1 true EP0909620B1 (de) | 2003-11-19 |
Family
ID=27217743
Family Applications (3)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP98117030A Expired - Lifetime EP0909620B1 (de) | 1997-09-13 | 1998-09-09 | Kontinuierliche Presse zum Verpressen von Pressgutmatten zu Pressgutplatten |
EP03020741A Expired - Lifetime EP1371466B1 (de) | 1997-09-13 | 1998-09-09 | Kontinuierliche Presse zum Verpressen |
EP98117029A Expired - Lifetime EP0901894B1 (de) | 1997-09-13 | 1998-09-09 | Verfahren und Presse zum Verpressen, insbes. kontinuierlichen Verpressen |
Family Applications After (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP03020741A Expired - Lifetime EP1371466B1 (de) | 1997-09-13 | 1998-09-09 | Kontinuierliche Presse zum Verpressen |
EP98117029A Expired - Lifetime EP0901894B1 (de) | 1997-09-13 | 1998-09-09 | Verfahren und Presse zum Verpressen, insbes. kontinuierlichen Verpressen |
Country Status (5)
Country | Link |
---|---|
US (2) | US6142068A (de) |
EP (3) | EP0909620B1 (de) |
CN (2) | CN1076258C (de) |
CA (2) | CA2244283C (de) |
DE (2) | DE59812293D1 (de) |
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DE19918492C5 (de) * | 1999-04-23 | 2006-10-05 | Siempelkamp Maschinen- Und Anlagenbau Gmbh & Co. Kg | Verfahren zum Verpressen von Preßgutmatten zu Preßgutplatten im Zuge der Herstellung von Spanplatten, Faserplatten und anderen Holzwerkstoffplatten |
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DE4433641C1 (de) * | 1994-09-21 | 1995-11-02 | Siempelkamp Gmbh & Co | Kontinuierliche Presse zum Verpressen von Preßgutmatten zu Preßgutplatten |
DE4446091A1 (de) * | 1994-12-22 | 1996-06-27 | Dieffenbacher Gmbh Maschf | Pressengestell |
DE19518879A1 (de) * | 1995-05-28 | 1996-12-05 | Dieffenbacher Gmbh Maschf | Verfahren und Anlage zur Herstellung von Spanplatten |
-
1998
- 1998-09-09 DE DE59812293T patent/DE59812293D1/de not_active Expired - Lifetime
- 1998-09-09 DE DE59810212T patent/DE59810212D1/de not_active Expired - Lifetime
- 1998-09-09 EP EP98117030A patent/EP0909620B1/de not_active Expired - Lifetime
- 1998-09-09 EP EP03020741A patent/EP1371466B1/de not_active Expired - Lifetime
- 1998-09-09 EP EP98117029A patent/EP0901894B1/de not_active Expired - Lifetime
- 1998-09-14 CA CA002244283A patent/CA2244283C/en not_active Expired - Lifetime
- 1998-09-14 US US09/152,931 patent/US6142068A/en not_active Expired - Lifetime
- 1998-09-14 CN CN98124377A patent/CN1076258C/zh not_active Ceased
- 1998-09-14 CN CNB981243762A patent/CN1188259C/zh not_active Expired - Lifetime
- 1998-09-14 CA CA002244284A patent/CA2244284C/en not_active Expired - Lifetime
- 1998-09-14 US US09/152,941 patent/US6098532A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
EP0901894B1 (de) | 2004-11-24 |
EP0909620A2 (de) | 1999-04-21 |
EP0909620A3 (de) | 1999-05-19 |
US6142068A (en) | 2000-11-07 |
CN1188259C (zh) | 2005-02-09 |
CN1224651A (zh) | 1999-08-04 |
DE59812293D1 (de) | 2004-12-30 |
CA2244284C (en) | 2002-05-28 |
EP1371466A1 (de) | 2003-12-17 |
DE59810212D1 (de) | 2003-12-24 |
US6098532A (en) | 2000-08-08 |
CA2244284A1 (en) | 1999-03-13 |
EP0901894A3 (de) | 1999-05-12 |
EP1371466B1 (de) | 2011-06-29 |
EP0901894A2 (de) | 1999-03-17 |
CN1224650A (zh) | 1999-08-04 |
CA2244283C (en) | 2003-07-29 |
CA2244283A1 (en) | 1999-03-13 |
CN1076258C (zh) | 2001-12-19 |
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