DE2033099B1 - Compensating roll deflection in compactingchips or fibres - Google Patents

Compensating roll deflection in compactingchips or fibres

Info

Publication number
DE2033099B1
DE2033099B1 DE19702033099 DE2033099A DE2033099B1 DE 2033099 B1 DE2033099 B1 DE 2033099B1 DE 19702033099 DE19702033099 DE 19702033099 DE 2033099 A DE2033099 A DE 2033099A DE 2033099 B1 DE2033099 B1 DE 2033099B1
Authority
DE
Germany
Prior art keywords
fibres
compactingchips
rectangular plates
rolls
chip
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.)
Granted
Application number
DE19702033099
Other languages
German (de)
Other versions
DE2033099C2 (en
Inventor
De Mets Albert
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.)
Bison Werke Baehre and Greten GmbH and Co KG
Original Assignee
Bison Werke Baehre and Greten GmbH and Co KG
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 Bison Werke Baehre and Greten GmbH and Co KG filed Critical Bison Werke Baehre and Greten GmbH and Co KG
Priority to DE19702033099 priority Critical patent/DE2033099C2/en
Publication of DE2033099B1 publication Critical patent/DE2033099B1/en
Application granted granted Critical
Publication of DE2033099C2 publication Critical patent/DE2033099C2/en
Expired 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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Dry Formation Of Fiberboard And The Like (AREA)
  • Press Drives And Press Lines (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Preliminary Treatment Of Fibers (AREA)
  • Nonwoven Fabrics (AREA)

Abstract

Continuously operating preliminary press for compacting of chips or fibres etc. into mat form, for production of board-type materials, comprises two endless chains of rectangular panels hinged end-to-end the facing lengths of the chains being pressed towards each other by rolls. The cross sectional thickness of the rectangular panels increases towards the longitudinal centreline by the same amount as the rolls deflect under pressure.

Description

Die Erfindung bezieht sich auf eine kontinuierlich arbeitende Vorpresse zur Vorverdichtung von Späne-oder Faservliesen u. dgl. im Zuge der Herstellung plattenförmiger Werkstoffe, mit zwei übereinander angeordneten, über Umlenkrollen geführten endlosen Ketten, die aus einander angelenkten Rechteckplatten bestehen, deren einander zugewandte Trumms durch Andrückwalzen gegeneinander preßbar sind. The invention relates to a continuously operating prepress for precompaction of chip or fiber fleeces and the like in the course of the production of plate-shaped Materials, with two endless ones arranged one above the other and guided over pulleys Chains, which consist of rectangular plates hinged to one another, whose facing one another Trumms can be pressed against each other by pressure rollers.

Beim Vorpressen von Späne- und Faservliesen ist es für die Güte des Endproduktes ausschlaggebend, daß das aufgeschüttete Span- oder Fasergut über die ganze Fläche gleichmäßig dicht zusammengedrückt wird. Um schon in der Vorpresse ein sehr !dicht zusammengedrücktes Vlies zu erreichen, werden spezifische Drücke von 25 kg/cm2 und mehr über die Andrüdkwalzen auf das aufgeschüttete Gut ausgeübt. When pre-pressing chip and fiber fleeces, it is important for the quality of the End product crucial that the heaped chip or fiber material over the entire surface is evenly pressed together tightly. To already in the prepress To achieve a very tightly compressed fleece, specific pressures are required of 25 kg / cm2 and more is exerted on the heaped material via the pressure rollers.

Hierbei treten insofern Schwierigkeiten auf, als die Andrückwatlzen sich durchbiegen und so das Vlies an den Rändern dichter zusammengedrückt wird als in der Mitte.Difficulties arise here as the pressure pads bend and so the fleece is pressed closer together at the edges than in the middle.

Der Erfindung liegt die Aufgabe zugrunde, die durch das Durchbiegen der Walzen entstehende ungleichmäßige Vorpressung des Späne- oder Faservlieses zu beseitigen. The invention is based on the object by bending the uneven pre-pressing of the chip or fiber fleece resulting from the rollers remove.

Die Lösung der Aufgabe ist erfindungsgemäß dadurch gekennzeichnet, daß die Querschnittsdicke der Rechteckplatten gegen ihre Linksmitte zu um das gleiche Maß zunimmt, um das sich die Andrückwalzen durchbiegen. According to the invention, the solution to the problem is characterized in that that the cross-sectional thickness of the rectangular plates towards their center left is about the same The amount by which the pressure rollers bend increases.

Durch die Erfindung wird der technische Fortschritt erzielt, daß das aufgeschüttete Span- oder Fasergut über die ganze Fläche gleichmäßig dicht zusammengedrückt wird. Man könnte die Durchbiegung der Andrückwalzen während des Preßvorganges an sich auch dadurch kompensieren, daß man die Andrückwalzen ballig ausbildet, dann tritt aber zwischen den Oberflächen der Andrückwalzen und den Rechteckplatten wegen der unterschiedlichen Umfangslängen Reibung auf, die einen Verschleiß be- wirkt, der vermieden wird, wenn zylindrische Andrückwalzen verwendet und die Rechteckplatten erfindungsgemäß ausgebildet werden. Es entfällt dann jeder Verschleiß und es ist möglich, besonders gleichmäßige Platten zu erzielen, die schon in der Vorpresse unter einem Druck von 25 kg/cm2 verdichtet worden sind. The invention achieves technical progress that the heaped up chip or fiber material is evenly and tightly compressed over the entire surface will. You could see the deflection of the pressure rollers during the pressing process also compensate for the fact that the pressure rollers are convex, then but occurs between the surfaces of the pressure rollers and the rectangular plates because of the different circumferential lengths on friction, which leads to wear acts, which is avoided when using cylindrical pressure rollers and the rectangular plates are formed according to the invention. There is then no wear and tear and it is possible to achieve particularly uniform panels that are already in the prepress have been compacted under a pressure of 25 kg / cm2.

Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung dargestellt. An embodiment of the invention is shown in the drawing.

Die Fig. 1 zeigt eine Vorpresse im Querschnitt. Fig. 1 shows a pre-press in cross section.

Die untere Andrückwalze 1 ruht in feststehenden Lagern 2. Die obere Andrückwalze 3 ist in vertikal beweglichen Lagern 4 gehalten, auf die die Preßstempel nicht weiter dargestellter Preßzylinder wirken. Oberhalb der unteren Andrückwalze 1 ist der Querschnitt der Rechteckplatte 5 des oberen Trumms der unteren endlosen Kette und unterhalb der oberen Andrückwalze 3 der Querschnitt der Rechteckplatte 6 des unteren Trumms der oberen endlosen Kette dargestellt. Diese Querschnitte sind erfindungsgemäß so gestaltet, daß die Höhe in der Mitte größer als an den Rändern ist und zwar so, daß dadurch die Durchbiegung der Walzen während des Preßvorganges kompensiert wird.The lower pressure roller 1 rests in fixed bearings 2. The upper one Pressure roller 3 is held in vertically movable bearings 4 on which the ram not shown press cylinder act. Above the lower pressure roller 1 is the cross section of the rectangular plate 5 of the upper run of the lower endless one Chain and below the upper pressure roller 3 the cross section of the rectangular plate 6 of the lower run of the upper endless chain is shown. These cross sections are designed according to the invention so that the height in the middle is greater than at the edges is in such a way that thereby the deflection of the rollers during the pressing process is compensated.

Claims (1)

Patentanspruch: Claim: Kontinuierlich arbeitende Vorpresse zur Vorverdichtung von Späne- oder Faservliesen u. dgl. Continuously working pre-press for pre-compaction of chip or nonwovens and the like. im Zuge der Herstellung plattenförmiger Werkstoffe, mit zwei übereinander angeordneten, über Umlenkrollen geführten, endlosen Ketten, die aus aneinander angelenkten Rechteckplatten bestehen, deren einander zugewandte Trumms durch Andrückwalzen gegeneinander preßbar sind, d a -durch gekennzeichnet, daß die Querschnitts dicke der Rechteckplatten (5) gegen ihre Längsmitte zu um das gleiche Maß zunimmt, um das sich die Andrückwalzen (1, 3) durchbiegen. in the course of the production of plate-shaped materials, with two on top of each other arranged, guided over pulleys, endless chains that are articulated from one another Rectangular plates are made, the facing strands of which are pressed against one another by pressing rollers are pressable, d a -characterized in that the cross-sectional thickness of the rectangular plates (5) increases towards its longitudinal center by the same amount as the pressure rollers Bend (1, 3).
DE19702033099 1970-07-03 1970-07-03 Compensating roll deflection in compactingchips or fibres Expired DE2033099C2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19702033099 DE2033099C2 (en) 1970-07-03 1970-07-03 Compensating roll deflection in compactingchips or fibres

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19702033099 DE2033099C2 (en) 1970-07-03 1970-07-03 Compensating roll deflection in compactingchips or fibres

Publications (2)

Publication Number Publication Date
DE2033099B1 true DE2033099B1 (en) 1971-11-11
DE2033099C2 DE2033099C2 (en) 1972-07-08

Family

ID=5775767

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19702033099 Expired DE2033099C2 (en) 1970-07-03 1970-07-03 Compensating roll deflection in compactingchips or fibres

Country Status (1)

Country Link
DE (1) DE2033099C2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1938935A3 (en) * 2006-12-30 2013-09-25 Dieffenbacher GmbH Maschinen- und Anlagenbau Prepress for pre-compactage and deairing of a pressed material mat in the course of material plate production

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1938935A3 (en) * 2006-12-30 2013-09-25 Dieffenbacher GmbH Maschinen- und Anlagenbau Prepress for pre-compactage and deairing of a pressed material mat in the course of material plate production

Also Published As

Publication number Publication date
DE2033099C2 (en) 1972-07-08

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Legal Events

Date Code Title Description
E77 Valid patent as to the heymanns-index 1977
8339 Ceased/non-payment of the annual fee