WO2019076569A1 - Presse continue destinée au pressage de mats de matériau à presser - Google Patents

Presse continue destinée au pressage de mats de matériau à presser Download PDF

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Publication number
WO2019076569A1
WO2019076569A1 PCT/EP2018/075373 EP2018075373W WO2019076569A1 WO 2019076569 A1 WO2019076569 A1 WO 2019076569A1 EP 2018075373 W EP2018075373 W EP 2018075373W WO 2019076569 A1 WO2019076569 A1 WO 2019076569A1
Authority
WO
WIPO (PCT)
Prior art keywords
press
continuous
continuous press
press according
pressure medium
Prior art date
Application number
PCT/EP2018/075373
Other languages
German (de)
English (en)
Inventor
Hans-Rolf Conrad
Original Assignee
Siempelkamp Maschinen- Und Anlagenbau 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 Siempelkamp Maschinen- Und Anlagenbau Gmbh filed Critical Siempelkamp Maschinen- Und Anlagenbau Gmbh
Publication of WO2019076569A1 publication Critical patent/WO2019076569A1/fr

Links

Classifications

    • 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
    • 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
    • B30B5/065—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 using anti-friction means for the pressing band
    • B30B5/067—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 using anti-friction means for the pressing band using anti-friction roller means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2322/00—Apparatus used in shaping articles
    • F16C2322/12—Rolling apparatus, e.g. rolling stands, rolls
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C29/00—Bearings for parts moving only linearly
    • F16C29/04—Ball or roller bearings
    • F16C29/045—Ball or roller bearings having rolling elements journaled in one of the moving parts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C32/00—Bearings not otherwise provided for
    • F16C32/06—Bearings not otherwise provided for with moving member supported by a fluid cushion formed, at least to a large extent, otherwise than by movement of the shaft, e.g. hydrostatic air-cushion bearings
    • F16C32/0681—Construction or mounting aspects of hydrostatic bearings, for exclusively rotary movement, related to the direction of load
    • F16C32/0685—Construction or mounting aspects of hydrostatic bearings, for exclusively rotary movement, related to the direction of load for radial load only
    • F16C32/0688—Construction or mounting aspects of hydrostatic bearings, for exclusively rotary movement, related to the direction of load for radial load only with floating bearing elements

Definitions

  • the invention relates to a continuous press for pressing Pressgutmatten to Pressgutpatten in the course of the production of wood material panels, with press base and press upper part, in the press base and press top endlessly circulating press belts, between which the pressed material mat is compressible, wherein in the press base and / or in the press upper part at least a heatable press plate is arranged and the steel press belts are supported on the press plates with the interposition of rolling rods.
  • the mentioned continuous press is known in the production process of wood-based panels. Particle boards, OSB boards, lightweight boards, multi-layer boards, HDF or MDF boards are mentioned by way of example.
  • the scatterable good scattered on a conveyor belt (essentially glued wood chips) will be referred to below as Pressgutmatte.
  • These pressed material mats can have thicknesses of a few millimeters up to one meter.
  • the scattering stations are capable of varying the spread rate over one or more metered adjustable scattering stations in the conveying direction of the conveyor belt as well as in the transverse direction. Several successive scattering stations allow the formation of different layers, such as cover and middle layers.
  • the conveyor belt forwards the pressed material mat to the continuous press.
  • this press is for pressurizing the supplied via the conveyor belt in a conveying direction Pressgutmatte
  • the heat supply allows to liquefy binder or to allow moisture to evaporate.
  • the starting point of this invention may be considered to be the continuous press designated by the Applicant by the name of "ContiRoll.” Such a press is described by way of example in DE 10 2006 038 918.
  • the figure 2 in this application is taken from the cited document (there Fig. 1) in order to describe the closest prior art to the invention easier.
  • Fig. 2 is therefore shown as the prior art, a continuous press for pressing Pressgutmatten 1 to Pressgutplatten in the course of the production of wood-based panels.
  • the press has in its basic structure a press upper part 2 with heatable upper press plate 3 and a press lower part 4 with heated lower press plate 5, wherein in the upper press part 2 and in the lower press part 4 each endlessly circulating steel press belts 6 are provided, which with the interposition of rolling rods against the press plates 3, 5 are supported.
  • the press is in the embodiment is an upper piston press, in which the lower press plate 5 is arranged as it were fixed on the press table, while the upper press plate 3 for opening and closing the press and
  • each deflection unit 12a, b; 13a, b in a conventional manner at least two guide wheels, which may be formed, for example, as gears.
  • an upper chain tensioning device 14 is provided, wherein the already described upper deflection unit 12b is formed as an upper clamping unit 12b. Accordingly, a lower chain tensioning device 15 is provided in the lower chain circulation 1 1, in which case the lower deflection unit 13b is designed as a lower tensioning unit 13b.
  • the clamping units 12b, 13b are each movable.
  • the two clamping units 12b, 13b are connected to pivotally mounted pivot lever 17, wherein the adjusting drives 16 are in turn connected to this pivot lever 17.
  • the pivot lever 17 are hinged to the outside of the press frame G connected bearing jaws 18.
  • the press frame G itself has a plurality of press frame 19 lined in the press longitudinal direction, to which the upper side and underside in the press longitudinal direction extending side members 20, 21 are connected, wherein the longitudinal members 20, 21 are formed in the embodiment as a double-T-carrier.
  • the described bearing jaws 18 of the upper clamping device 14 are connected on the upper side to the upper side members 20, while the bearing jaws 18 of the lower clamping device 15 are connected on the underside to the lower side members 21.
  • the adjusting drives 16 of the upper clamping device 14 are also positioned above the upper longitudinal member 20, while the adjusting mechanisms 16 of the lower clamping device 15 are arranged below the lower longitudinal member 21.
  • the pivot levers or the bearing jaws at least the upper clamping device 14 are positioned so that the clamping unit 12b associated pivot lever 17 are passed on both sides outside of the steel press belts 6.
  • the pivoting levers 17 may, for example, be pivot rods or pivoting rods.
  • the actuator 16 are in the embodiment as a linear actuator 16, as a hydraulic cylinder piston assemblies 16 each with cylinder 22 on the one hand and piston 23 on the other hand formed.
  • the cylinders 22 are connected to the press frame G, while the pistons 23 are connected to the pivot lever 17.
  • the cylinder piston assemblies 16 are pivotally mounted on both sides, ie, the cylinder 22 is pivotally mounted on the press frame G, while the piston 23 is pivotally connected to the pivot lever 17.
  • the object of the invention is therefore to avoid the disadvantages associated with circulating rolling rods in chains.
  • the object is achieved for the continuous press by the features of claim 1 and in particular by the fact that the rolling rods are rotatably mounted in hydrostatic bearings under the influence of a pressure medium.
  • Roll bars are therefore still used to exert the power transmission from the engageable press plates on the rotating press belts. But the rolling rods do not run in a circulating in a closed circuit chain, but are - apart from thermal expansion of the fasteners for the hydrostatic bearing - rotatably mounted at least in the production direction. On vulnerable chains with bearings
  • a pressure medium such as a pressurized oil
  • a roll bar is allowed to rotate stationary in the hydrostatic bearing, thus creating the support between press plates and press belts.
  • the hydrostatic bearings for the rolling rods are attached to the press plates.
  • the press plates have a fixed position and several hydrostatic bearings can be attached over their entire length.
  • the press plates, which are often heated, remain separated only by the bearing and the rolling rods, in close proximity to the rotating press belts. The heat to be introduced into the pressed material mats can thereby be transferred relatively easily.
  • the hydrostatic bearings are arranged in the direction of passage of the fiber mat at a distance which is smaller than 200 mm, preferably smaller than 80 mm.
  • the rolling rods have diameters in the range of 10 to 40 mm and lengths of 200 to 3000 mm.
  • Machine width can reach.
  • such high Hertzian pressure can be exerted on the press belt and thus also on the pressed product mat.
  • a hydrostatic bearing has a channel with a circular segment-like cross section, which can accommodate a roll bar.
  • the channel with a circular segment-like cross-section surrounds the rolling rod by more than 180 °, that is, the circular arc of the circle segment has a circumferential angle of more than 180 °.
  • the rolling bar must extend beyond the edge of the channel at least so far that contact with the press belt is possible. But with an enclosure of more than 180 °, the roll bar can not fall out of the camp.
  • a crescent-shaped pressure chamber remains in the cross-section, which is provided with a pressure medium inlet.
  • oil can be supplied under high pressure and using a hydrostatic throttle. This can also happen at several inlets to the pressure chamber.
  • a pressure is exerted on the roller bar.
  • the pressure medium ensures a virtually frictionless rotation of the rolling rod. Between the channel edge and the roll bar, a small part of the pressure medium can escape and provide good lubrication between the roll bar and the press belt. It is therefore advantageous if a
  • Pressure medium outlet gap between an edge of the channel and the rolling bar is provided.
  • At least one elastic collar is provided laterally on a press belt and / or a press plate in the direction of passage of the press material mat.
  • This collar causes the leaked from the hydrostatic bearing pressure medium that has been deposited on the press belt or the press plate, laterally can not run out of the continuous press or even get into the pressed material mat.
  • the collar should be elastic and be able to follow the bends of the press belt or press plate.
  • the collar can be glued for example as a rubber band.
  • a suction device is provided for emerging from the hydrostatic bearing pressure medium.
  • the suction device comprises a proboscis
  • the suction nozzle (open end of the trunk) is located between two collar.
  • Such a suction nozzle consists only of a possibly curved pipe, which is connected to a suction pump
  • FIG. 1 shows a schematic and simplified section of a side view of the continuous press according to the invention
  • Fig. 2 shows the already described prior art.
  • 1 shows a lateral section of a continuous press for pressing press material mats 1.
  • the pressed material mat 1 is clamped between an upper and a lower press belt 6.
  • Slightly spaced from the press belts 6 are the upper press plate 3 and the lower press plate 5.
  • At least one of these press plates 3, 5, which are usually heatable, is not shown in FIG Way over cylinder hired.
  • the pressure is transmitted via rolling rods 7, which are rotatably mounted in hydrostatic bearings 24.
  • the numerous hydrostatic bearings 24 are fixed at intervals of less than 200 mm to both the upper press plate 3 and the lower press plate 5. They consist in the embodiment
  • bearing blocks 34 which include a channel 25.
  • the channel has a circular segment-like cross-section, in which a rolling rod is housed and is surrounded by the circular segment-like cross section by more than 180 °. However, a part of the rolling rod 7 looks out of the circular segment-like channel cross-section and has contact with the press belt 6.
  • Such a roll bar should have a diameter between 10 and 40 mm and a length between 200 and 3000 mm.
  • a pressure chamber 27 which is supplied via a pressure medium inlet 28 with pressure medium, usually oil.
  • pressure medium usually oil.
  • each pressure medium inlet 28 is provided with a connection 29, for example, for a Rohroder hose connection.
  • a throttle not shown is arranged in the pressure medium inlet 28 in known manner for hydrostatic bearings.
  • the oil is also the lubricant that it does not come to a rapid rotation of the rolling rods 7 in the channel 25 to wear.
  • a pressure medium outlet gap 30 Between the rolling rod 7 and the channel edge 26 of the channel 25 is a pressure medium outlet gap 30, can escape from the minimum pressure medium. This ensures an almost completely frictionless rotatable mounting of the rolling rod in the hydrostatic bearing 24. But the wear between roller bar 7 and press belt 6 is kept as low as possible.
  • pressure medium in the upper region of the continuous press may reach the surrounding press belt 6 and, if necessary, the lower press plate 5 in the lower region of the continuous press.
  • an elastic collar 31 for example of a rubber-like material, is provided in the upper region on the press belt and in the lower region on the press plate.
  • the oil accumulating between the outer collar 31 (only a short section shown in FIG. 1) is removed by means of a suction device 32.
  • a sump 33 which is connected to a fan, not shown, which generates negative pressure, extends with its suction nozzle into the corresponding areas.

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)

Abstract

L'invention concerne une presse continue destinée au pressage de mats de matériau à presser (1) en panneaux de matériau à presser dans le cadre de la fabrication de panneaux lignocellulosiques, comprenant une partie inférieure de presse (4) et une partie supérieure de presse (2), des bandes de presse (6), entre lesquelles le mat de matériau à presser (1) peut être pressé, tournant sans fin dans la partie inférieure de presse (4) et dans la partie supérieure de presse (2), - au moins un panneau de presse chauffant (3, 5) étant agencé dans la partie inférieure de presse (4) et/ou dans la partie supérieure de presse (2), et - les bandes de presse (6) reposant contre les panneaux de presse (3, 5) par l'intermédiaire de barres roulantes (7). Selon l'invention, afin d'éviter les inconvénients associés à des barres roulantes tournant dans des chaînes, au moins une partie des barres roulantes (7) sont montées à rotation dans des paliers hydrostatiques (24) sous l'action d'un moyen de pression.
PCT/EP2018/075373 2017-10-21 2018-09-19 Presse continue destinée au pressage de mats de matériau à presser WO2019076569A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102017009823.9A DE102017009823B3 (de) 2017-10-21 2017-10-21 Kontinuierliche Presse zum Verpressen von Pressgutmatten
DE102017009823.9 2017-10-21

Publications (1)

Publication Number Publication Date
WO2019076569A1 true WO2019076569A1 (fr) 2019-04-25

Family

ID=63667918

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2018/075373 WO2019076569A1 (fr) 2017-10-21 2018-09-19 Presse continue destinée au pressage de mats de matériau à presser

Country Status (2)

Country Link
DE (1) DE102017009823B3 (fr)
WO (1) WO2019076569A1 (fr)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2110754A1 (de) * 1971-03-06 1972-09-21 Siempelkamp Gmbh & Co Anlage zur kontinuierlichen Herstellung von Spanplatten
US4025272A (en) * 1975-07-07 1977-05-24 Southampton Manufacturing Company, Inc. Apparatus for continuously manufacturing boards
DE20012659U1 (de) 2000-07-21 2000-11-30 G. Siempelkamp Gmbh & Co, 47803 Krefeld Rollstabkette
DE102006038918A1 (de) 2006-08-18 2008-02-21 Siempelkamp Maschinen- Und Anlagenbau Gmbh & Co. Kg Kontinuierliche Presse
US20080115901A1 (en) * 2006-11-21 2008-05-22 Klaus Bartelmuss Device for Supporting a Wire, Felt or Paper Web in a Paper Production Plant
CN102303349B (zh) * 2011-07-08 2013-11-27 中国林业科学研究院林业新技术研究所 一种模块化结构的连续压机

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2110754A1 (de) * 1971-03-06 1972-09-21 Siempelkamp Gmbh & Co Anlage zur kontinuierlichen Herstellung von Spanplatten
US4025272A (en) * 1975-07-07 1977-05-24 Southampton Manufacturing Company, Inc. Apparatus for continuously manufacturing boards
DE20012659U1 (de) 2000-07-21 2000-11-30 G. Siempelkamp Gmbh & Co, 47803 Krefeld Rollstabkette
DE102006038918A1 (de) 2006-08-18 2008-02-21 Siempelkamp Maschinen- Und Anlagenbau Gmbh & Co. Kg Kontinuierliche Presse
US20080115901A1 (en) * 2006-11-21 2008-05-22 Klaus Bartelmuss Device for Supporting a Wire, Felt or Paper Web in a Paper Production Plant
CN102303349B (zh) * 2011-07-08 2013-11-27 中国林业科学研究院林业新技术研究所 一种模块化结构的连续压机

Also Published As

Publication number Publication date
DE102017009823B3 (de) 2018-12-20

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