EP0058369A2 - Feeding device for woodworking machine-tools - Google Patents

Feeding device for woodworking machine-tools Download PDF

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Publication number
EP0058369A2
EP0058369A2 EP82100899A EP82100899A EP0058369A2 EP 0058369 A2 EP0058369 A2 EP 0058369A2 EP 82100899 A EP82100899 A EP 82100899A EP 82100899 A EP82100899 A EP 82100899A EP 0058369 A2 EP0058369 A2 EP 0058369A2
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EP
European Patent Office
Prior art keywords
feed
individual
units
rollers
feed rollers
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
EP82100899A
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German (de)
French (fr)
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EP0058369B1 (en
EP0058369A3 (en
Inventor
Kurt Büttner
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.)
CESSIONE;OKOMA MASCHINEN UND SERVICE GMBH
Original Assignee
OKOMA OBERKOCHENER MASCHINEN GmbH
OKOMA 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.)
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Publication date
Application filed by OKOMA OBERKOCHENER MASCHINEN GmbH, OKOMA MASCHINENFABRIK GmbH filed Critical OKOMA OBERKOCHENER MASCHINEN GmbH
Priority to AT82100899T priority Critical patent/ATE22031T1/en
Publication of EP0058369A2 publication Critical patent/EP0058369A2/en
Publication of EP0058369A3 publication Critical patent/EP0058369A3/en
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Publication of EP0058369B1 publication Critical patent/EP0058369B1/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27C—PLANING, DRILLING, MILLING, TURNING OR UNIVERSAL MACHINES FOR WOOD OR SIMILAR MATERIAL
    • B27C1/00—Machines for producing flat surfaces, e.g. by rotary cutters; Equipment therefor
    • B27C1/12—Arrangements for feeding work
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27B—SAWS FOR WOOD OR SIMILAR MATERIAL; COMPONENTS OR ACCESSORIES THEREFOR
    • B27B25/00—Feeding devices for timber in saw mills or sawing machines; Feeding devices for trees
    • B27B25/02—Feeding devices for timber in saw mills or sawing machines; Feeding devices for trees with feed and pressure rollers

Definitions

  • the invention relates to a feed device for woodworking machines, in particular for milling machines for longitudinal profiling of wood, which consists of several milling spindles arranged one behind the other in the feed direction, the feed device having a plurality of individual feed units arranged one behind the other, each provided with at least two driven feed rollers, mounted on a common carrier and are pivotable about a vertical axis relative to the carrier.
  • a drive shaft divided into individual sections is provided, the number of individual sections corresponding to that of the feed units, and between the individual sections Cardan joints are provided which lie between the individual feed units. The play in these joints allows the feed units to be pivoted at small angles around a vertical axis.
  • This feed device therefore has the advantage that additional counterholders or the like can be dispensed with, which are required parallel to the stops when the workpieces are demanded straight in order to generate the necessary counterpressure against the tools during the machining process.
  • a disadvantage of the known arrangement is that the drive by means of the cardan shaft divided into individual sections is expensive and particularly susceptible to wear and failure with regard to the cardan joints.
  • the invention is accordingly based on the object of designing a feed device of the type mentioned in such a way that, while maintaining the advantages of the pivotability of the individual feed units outlined above, the pivoting can be carried out simply and safely, in particular by larger angles, and that at the same time a simple, robust and wear-resistant drive can be used.
  • a continuous drive shaft is provided which runs above the individual feed units and on which for each feed unit a transmission consisting of two bevel gears lying at right angles to one another is arranged, to which a vertically extending output shaft connects which in turn are connected to the horizontal drive shafts for the feed rollers via a further right-angled bevel gear.
  • the feed units can be pivoted about the axis of the vertical drive shaft by any angle, so that sufficiently large adjustment angles can be achieved in order to bring about the necessary starting pressures against the stops.
  • three feed rollers are assigned to the individual feed unit. These three feed rollers are combined by the one lying approximately in the longitudinal center of the individual feed unit vertical output shaft driven by expediently driving a horizontal shaft which drives the shafts of the two outer feed rollers on both sides via chain drives and can be directly connected to the central feed roller.
  • the central feed roller is set back relative to the tool, so that the tool can enter between the two outer feed rollers.
  • the feed unit which simultaneously forms the holder for the workpiece during the machining process, thus comes as close as possible to the tool, so that vibrations, chatter marks or the like are largely excluded.
  • a particular advantage here is that the center and the feed roller opposite the axis of the tool is pivoted together with the two outer feed rollers, which was not possible with the previous arrangement.
  • the pivoting of the feed units can be carried out in that, as in the known arrangement, the housing of the individual feed unit is also adjusted relative to a stationary part of the carrier via elongated holes, where clamping screws can be provided for fixing.
  • Another possibility is to pivot all feed units at the same time by providing a common push rod assigned to the individual feed units, a spindle or the like, each of which articulates at the same point on the individual feed unit. A longitudinal displacement of this push rod then causes the individual feed unit to pivot about the axis of the vertical output shaft.
  • the feed device consists of a plurality of feed units 1 arranged one behind the other, each of which is provided with two or three driven feed rollers 2.
  • the individual units are driven by a drive motor 3 via a continuous shaft 4 (cf. FIG. 3), the shaft 4 entering the drive housing 5 of the individual feed units 1.
  • the housings 5 are held on a common continuous support 6 (see FIGS. 2 and 3) which is pivotally mounted on a bracket 7 about an axis 8, so that the entire feed unit together with the support over the work table 9 of the schematically indicated milling machine can be pivoted.
  • a stop 10 at the end opposite the console 7 also serves to hold the carrier in the pivoted-in state.
  • this is provided between the individual drive housings 5 according to FIG. 1 with bellows-shaped elastic covers 11.
  • the covers 11 are removed in the illustration according to FIG. 3.
  • Fig. 3 The axes of the individual milling spindles, to which the feed device is to be assigned in the embodiment shown, are schematically indicated in Fig. 3 and designated 12.
  • the individual feed units 1 are each pivotable about axes 13 relative to the stationary drive housings 5, the axis 13 forming the central line of a vertical output shaft 14 according to FIG. 5.
  • oblong holes 15 are provided on both sides of the drive housing 5 and can be penetrated by clamping screws in order to fix the feed unit 1 relative to the drive housing 5 in the respective angular position.
  • Fig. 4 is a plan view similar to Fig. 3 with pivoted feed units 1.
  • the individual feed units are each pivoted out of their parallel position to the carrier 6 by an angle ⁇ , so that by the feed rollers 2 in the direction of arrow 16 conveyed workpieces against schematically indicated stops 17 before, behind and between the milling spindles 12 or their tools are pressed. Due to the angular position of the feed units 1, the workpieces are substantially impacted in the direction of the arrow 16a, so that due to the parallel conveyance forced by the stops 17, one against the Stop 17 acting force component occurs in the direction of arrow 16b.
  • a device can be used in which, in contrast to the embodiment according to FIG. 1, all feed units can be adjusted together.
  • a push rod 18 can be provided, which in each case articulates at the same point 19 of the individual feed units 1.
  • This push rod 18 can be displaced in the direction of arrow 21 by means of a handle 20 or another actuating device and can be fixed in the respective setting position. 4, the push rod 18 is located below the carrier 6.
  • three feed rollers 2a, 2b and 2c can be assigned to the individual feed units, of which the middle feed roller 2b in each case is compared to the tool located on the milling spindle 12 is set back. In this way, the tool located on the milling spindle 12 can enter between the two outer feed rollers 2a and 2c.
  • the feed unit 1 can thus be brought as close as possible to the tool.
  • Fig. 5 is the section V-V of FIG. 1 on an enlarged scale and shows the vertical output shaft 14, which is connected via a first bevel gear 22 and 23 arranged at right angles to each other to the continuous drive shaft 4 with its upper end.
  • This is provided with chain sprockets 27, 28 and 29, via which further feed shafts 31 and 32 can be driven via intermediate chains 30 (cf. FIG. 6).
  • Fig. 6 is the section VI-VI of Fig. 2 and illustrates these relationships.
  • further chain sprockets 27 are arranged at the ends of the feed shafts 26 and 31 and 32, which chain sprockets 33 are connected to the ends of those carrying the feed rollers 2 by means of intermediate chains 34 Waves 35 are connected.
  • the shafts 35 carrying the feed rollers 2 can thus be pivoted about the drive shafts 26 and 31 and 32, so that the feed rollers can be pressed individually against the workpiece.

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Milling, Drilling, And Turning Of Wood (AREA)

Abstract

1. A feed device for wood-working machines, more especially for milling machines for the longitudinal profiling of timber pieces, which consists of several milling spindles which are arranged behind one another in the feed direction, in which the feed device has several individual feed units (1) which are arranged one behind the other and which are respectively provided with at least two driven feed rollers (2), are mounted on a common bearer (6) and are swingable about a perpendicular axis relative to the carrier, characterised in that a continuous driving shaft (4) is provided for the individual feed units (1) which extends above the feed units, and on which, for each feed unit (1), in each case a gearing consisting of two bevel gears (22, 23) lying at a right angle to one another, is arranged, to which a perpendicularly-extending driven shaft (14) links, to which the individual horizontally-extending driving shafts (26, 31, 32) for the feed rollers (2) are connected in their turn, by a further right-angled bevel gearing (24, 25).

Description

Die Erfindung betrifft eine Vorschubeinrichtung für Holzbearbeitungsmaschinen, insbesondere für Fräsmaschinen zum Längsprofilieren von Hölzern, die aus mehreren in Vorschubrichtung hintereinander angeordneten Frässpindeln besteht, wobei die Vorschubeinrichtung mehrere hintereinander angeordnete einzelne Vorschubaggregate aufweist, die jeweils mit wenigstens zwei angetriebenen Vorschubrollen versehen, an einem gemeinsamen Träger gelagert und um eine senkrechte Achse gegenüber dem Träger schwenkbar sind.The invention relates to a feed device for woodworking machines, in particular for milling machines for longitudinal profiling of wood, which consists of several milling spindles arranged one behind the other in the feed direction, the feed device having a plurality of individual feed units arranged one behind the other, each provided with at least two driven feed rollers, mounted on a common carrier and are pivotable about a vertical axis relative to the carrier.

Bei einer bekannten Vorschubeinrichtung dieser Art ist eine in Einzelabschnitte aufgeteilte Antriebswelle vorgesehen, wobei die Anzahl der Einzelabschnitte derjenigen der Vorschubaggregate entspricht, und wobei zwischen den Einzelabschnitten Kardangelenke vorgesehen sind, die zwischen den einzelnen Vorschubaggregaten liegen. Das Spiel in diesen Gelenken gestattet eine Schwenkung der Vorschubaggregate in kleinen Winkeln um eine senkrechte Achse.In a known feed device of this type, a drive shaft divided into individual sections is provided, the number of individual sections corresponding to that of the feed units, and between the individual sections Cardan joints are provided which lie between the individual feed units. The play in these joints allows the feed units to be pivoted at small angles around a vertical axis.

Mit dieser Schwenkung wird je nach Winkelstellung erreicht, daß die Werkstücke entweder gegen einen den Frässpindeln und deren Werkzeugen zugeordneten Anschlag oder gegen einen auf der den Frässpindeln abgewandten Seite angeordneten Gegenanschlag geführt werden. Das Führen gegen einen den Frässpindeln zugewandten Anschlag kommt insbesondere beim Umfälzen von Fenstern in Betracht.With this pivoting it is achieved, depending on the angular position, that the workpieces are either guided against a stop assigned to the milling spindles and their tools or against a counter-stop arranged on the side facing away from the milling spindles. Guiding against a stop facing the milling spindles is particularly suitable when rebuilding windows.

Diese Vorschubeinrichtung hat mithin den Vorteil, daß zusätzliche Gegenhalter oder dergleichen entfallen können, welche bei gerader Forderung der Werkstücke parallel zu den Anschlägen erforderlich sind, um während des Bearbeitungsvorganges den notwendigen Gegendruck gegen die Werkzeuge zu erzeugen.This feed device therefore has the advantage that additional counterholders or the like can be dispensed with, which are required parallel to the stops when the workpieces are demanded straight in order to generate the necessary counterpressure against the tools during the machining process.

Nachteilig bei der bekannten Anordnung ist es jedoch, daß der Antrieb mittels der in einzelne Abschnitte aufgeteilten Gelenkwelle aufwendig und insbesondere im Hinblick auf die Kardangelenke verschleiß- und störanfällig ist.A disadvantage of the known arrangement, however, is that the drive by means of the cardan shaft divided into individual sections is expensive and particularly susceptible to wear and failure with regard to the cardan joints.

Der Erfindung liegt demgemäß die Aufgabe zugrunde, eine Vorschubeinrichtung der eingangs genannten Art so auszubilden, daß unter Beibehaltung der oben skizzierten Vorteile der Schwenkbarkeit der einzelnen Vorschubaggregate die Schwenkung einfach und sicher, insbesondere um größere Winkel, vorgenommen werden kann und daß gleichzeitig ein einfacher, robuster und verschleißunanfälliger Antrieb Verwendung finden kann.The invention is accordingly based on the object of designing a feed device of the type mentioned in such a way that, while maintaining the advantages of the pivotability of the individual feed units outlined above, the pivoting can be carried out simply and safely, in particular by larger angles, and that at the same time a simple, robust and wear-resistant drive can be used.

Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß eine durchgehende Antriebswelle vorgesehen ist, die oberhalb der einzelnen Vorschubaggregate verläuft und an welcher für jedes Vorschubaggregat jeweils ein aus zwei im rechten Winkel zueinander liegenden Kegelrädern bestehendes Getriebe angeordnet ist, an welches eine senkrecht verlaufende Abtriebswelle anschließt, an die ihrerseits über ein weiteres rechtwinkliges Kegelradgetriebe die einzelnen horizontal verlaufenden Antriebswellen für die Vorschubrollen angeschlossen sind.This object is achieved in that a continuous drive shaft is provided which runs above the individual feed units and on which for each feed unit a transmission consisting of two bevel gears lying at right angles to one another is arranged, to which a vertically extending output shaft connects which in turn are connected to the horizontal drive shafts for the feed rollers via a further right-angled bevel gear.

Mit dieser Anordnung wird erreicht, daß die Vorschubaggregate um die Achse der senkrechten Antriebswelle um beliebige Winkel schwenkbar sind, so daß sich genügend große Verstellwinkel erreichen lassen, um die notwendigen Anlaufdrücke gegen die Anschläge herbeizuführen.With this arrangement it is achieved that the feed units can be pivoted about the axis of the vertical drive shaft by any angle, so that sufficiently large adjustment angles can be achieved in order to bring about the necessary starting pressures against the stops.

Bei einer Schwenkung um die Achse der senkrechten Abtriebswelle werden bei der erfindungsgemäßen Anordnung die Eingriffsverhältnisse zwischen den einzelnen Kegelrädern des Getriebes in keiner Weise geändert, so daß auch in den Winkelstellungen kein höherer Verschleiß als in der Normalstellung auftritt. Hierin liegt ein wesentlicher Vorteil gegenüber der bekannten Anordnung, bei welcher zumindest in den Grenzlagen die Gelenke des Gelenkwellenantriebes einseitig belastet wurden und demzufolge einem erheblichen Verschleiß unterlagen.When pivoting about the axis of the vertical output shaft in the arrangement according to the invention, the engagement ratios between the individual bevel gears of the transmission are not changed in any way, so that even in the angular positions there is no greater wear than in the normal position. This is a significant advantage over the known arrangement, in which the joints of the propeller shaft drive were loaded on one side at least in the limit positions and were consequently subject to considerable wear.

Im Gegensatz zur bekannten Anordnung ist es mit der erfindungsgemäßen Anordnung insbesondere möglich, einen lückenlosen Vorschubantrieb über die gesamte Länge des Arbeitstisches der Fräsmaschine zu erreichen. Bei der bekannten Anordnung mußten nämlich im Bereich der Gelenke gewisse Abstände zwischen den einzelnen Vorschubaggregaten vorgesehen werden, die durch nichtangetriebene Vorschubrollen überbrückt werden mußten. Dieser Mangel ist mit der erfindungsgemäßen Anordnung beseitigt, da diese es ermöglicht, die Vorschubrollen in beliebig dichter Aufeinanderfolge anzuordnen.In contrast to the known arrangement, it is possible in particular with the arrangement according to the invention to achieve a continuous feed drive over the entire length of the work table of the milling machine. In the known arrangement, certain distances between the individual feed units had to be provided in the area of the joints, which distances had to be bridged by non-driven feed rollers. This deficiency is eliminated with the arrangement according to the invention, since this makes it possible to arrange the feed rollers in any densely sequential order.

Insbesondere hat es sich als vorteilhaft herausgestellt, wenn dem einzelnen Vorschubaggregat jeweils drei Vorschubrollen zugeordnet werden. Diese drei Vorschubrollen werden gemeinsam durch die etwa in der Längsmitte des einzelnen Vorschubaggregates liegende senkrechte Abtriebswelle angetrieben, indem diese zweckmäBigerweise eine horizontal liegende Welle treibt, die beidseits über Kettentriebe die Wellen der beiden äußeren Vorschubrollen antreibt und direkt mit der mittigen Vorschubrolle in Verbindung stehen kann.In particular, it has proven to be advantageous if three feed rollers are assigned to the individual feed unit. These three feed rollers are combined by the one lying approximately in the longitudinal center of the individual feed unit vertical output shaft driven by expediently driving a horizontal shaft which drives the shafts of the two outer feed rollers on both sides via chain drives and can be directly connected to the central feed roller.

Vorteilhaft ist es hierbei, wenn gegenüber dem Werkzeug die mittige Vorschubrolle zurückversetzt ist, so daß das Werkzeug zwischen die beiden äußeren Vorschubrollen eintreten kann. Damit kommt das Vorschubaggregat, welches während des Bearbeitungsvorganges gleichzeitig die Halterung des Werkstückes bildet, so nahe wie möglich an das Werkzeug heran, so daß Schwingungen, Rattermarken oder dergleichen weitgehend ausgeschlossen werden.It is advantageous here if the central feed roller is set back relative to the tool, so that the tool can enter between the two outer feed rollers. The feed unit, which simultaneously forms the holder for the workpiece during the machining process, thus comes as close as possible to the tool, so that vibrations, chatter marks or the like are largely excluded.

Ein besonderer Vorteil besteht insbesondere hierbei noch darin, daß auch die mittlere und der Achse des Werkzeuges gegenüberliegende Vorschubrolle zusammen mit den beiden äußeren Vorschubrollen verschwenkt wird, was bei der bisherigen Anordnung nicht möglich war.A particular advantage here is that the center and the feed roller opposite the axis of the tool is pivoted together with the two outer feed rollers, which was not possible with the previous arrangement.

Die Schwenkung der Vorschubaggregate kann dadurch vorgenommen werden, daß wie bei der bekannten Anordnung auch eine Verstellung des Gehäuses des einzelnen Vorschubaggregates gegenüber einem ortsfesten Teil des Trägers über Langlöcher erfolgt, wobei zur Festlegung Klemmschrauben vorgesehen sein können. Eine andere Möglichkeit besteht darin, alle Vorschubaggregate gleichzeitig zu verschwenken, indem eine den einzelnen Vorschubaggregaten zugeordnete gemeinsame Schiebestange, eine Spindel oder dergleichen vorgesehen ist, die jeweils am selben Punkt des einzelnen Vorschubaggregates gelenkig angreift. Eine Längsverschiebung dieser Schiebestange hat dann eine Schwenkung des einzelnen Vorschubaggregates um die Achse der senkrechten Abtriebswelle zur Folge.The pivoting of the feed units can be carried out in that, as in the known arrangement, the housing of the individual feed unit is also adjusted relative to a stationary part of the carrier via elongated holes, where clamping screws can be provided for fixing. Another possibility is to pivot all feed units at the same time by providing a common push rod assigned to the individual feed units, a spindle or the like, each of which articulates at the same point on the individual feed unit. A longitudinal displacement of this push rod then causes the individual feed unit to pivot about the axis of the vertical output shaft.

Die Erfindung wird im folgenden anhand eines Ausführungsbeispieles in der Zeichnung näher erläutert.

  • Fig. 1 zeigt in Ansicht eine Ansführungsform der erfindungsgemäßen Vorschubeinrich- . tung.
  • Fig. 2 ist die Ansicht II-II nach Fig. 1.
  • Fig. 3 ist die Draufsicht zu Fig. 1.
  • Fig. 4 ist eine Draufsicht ähnlich Fig. 3 bei verschwenkten Vorschubaggregaten.
  • Fig. 5 ist der Schnitt durch einen Antrieb eines der Vorschubaggregate, etwa entsprechend der Linie V-V nach Fig. 1 in vergrößertem Maßstab.
  • Fig. 6 ist der Schnitt VI-VI nach Fig. 2 in vergrößertem Maßstab.
The invention is explained below with reference to an embodiment in the drawing.
  • Fig. 1 shows a view of an embodiment of the feed device according to the invention. tung.
  • FIG. 2 is the view II-II of FIG. 1.
  • 3 is the top view of FIG. 1.
  • FIG. 4 is a top view similar to FIG. 3 with the feed units pivoted.
  • Fig. 5 is a section through a drive of one of the feed units, approximately along the line VV of FIG. 1 on an enlarged scale.
  • Fig. 6 is the section VI-VI of FIG. 2 on an enlarged scale.

Gemäß Fig. 1 besteht die erfindungsgemäße Vorschubeinrichtung aus mehreren hintereinander angeordneten Vorschubaggregaten 1, die jeweils mit zwei oder drei angetriebenen Vorschubrollen 2 versehen sind. Die einzelnen Aggregate werden durch einen Antriebsmotor 3 über eine durchgehende Welle 4 (vgl. Fig. 3) angetrieben, wobei die Welle 4 jeweils in Antriebsgehäuse 5 der einzelnen Vorschubaggregate 1 eintritt. Die Gehäuse 5 sind an einem gemeinsamen durchgehenden Träger 6 gehaltert (vgl. Figuren 2 und 3), der an einer Konsole 7 um eine Achse 8 schwenkbar gelagert ist, so daß das gesamte Vorschubaggregat zusammen mit dem Träger über den Arbeitstisch 9 der schematisch angedeuten Fräsmaschine geschwenkt werden kann. Ein Anschlag 10 am der Konsole 7 gegenüberliegenden Ende dient gleichzeitig der Halterung des Trägers im eingeschwenkten Zustand. Zum Staub- und Verschleißschutz der Welle 4 und ihrer Lagerungen ist diese zwischen den einzelnen Antriebsgehäusen 5 gemäß Fig. 1 mit balgenförmigen elastischen Abdeckungen 11 versehen. Die Abdeckungen 11 sind in der Darstellung gemäß Fig. 3 abgenommen.1, the feed device according to the invention consists of a plurality of feed units 1 arranged one behind the other, each of which is provided with two or three driven feed rollers 2. The individual units are driven by a drive motor 3 via a continuous shaft 4 (cf. FIG. 3), the shaft 4 entering the drive housing 5 of the individual feed units 1. The housings 5 are held on a common continuous support 6 (see FIGS. 2 and 3) which is pivotally mounted on a bracket 7 about an axis 8, so that the entire feed unit together with the support over the work table 9 of the schematically indicated milling machine can be pivoted. A stop 10 at the end opposite the console 7 also serves to hold the carrier in the pivoted-in state. For dust and wear protection of the shaft 4 and its bearings, this is provided between the individual drive housings 5 according to FIG. 1 with bellows-shaped elastic covers 11. The covers 11 are removed in the illustration according to FIG. 3.

Die Achsen der einzelnen Frässpindeln, denen bei der dargestellten Ausführungsform die Vorschubeinrichtung zugeordnet werden soll, sind in Fig. 3 schematisch angedeutet und mit 12 bezeichnet.The axes of the individual milling spindles, to which the feed device is to be assigned in the embodiment shown, are schematically indicated in Fig. 3 and designated 12.

Die einzelnen Vorschubaggregate 1 sind gegenüber den ortsfesten Antriebsgehäusen 5 jeweils um Achsen 13 schwenkbar angeordnet, wobei gemäß Fig. 5 die Achse 13 die zentrale Linie einer senkrecht verlaufenden Abtriebswelle 14 bildet.The individual feed units 1 are each pivotable about axes 13 relative to the stationary drive housings 5, the axis 13 forming the central line of a vertical output shaft 14 according to FIG. 5.

Bei der in Fig. 3 dargestellten Ausführungsform sind beidseits des Antriebsgehäuses 5 kreisbogenförmig gekrümmte Langlöcher 15 vorgesehen, die von Klemmschrauben durchgriffen werden können, um das Vorschubaggregat 1 gegenüber dem Antriebsgehäuse 5 in der jeweiligen Winkelstellung festzulegen.In the embodiment shown in FIG. 3, oblong holes 15 are provided on both sides of the drive housing 5 and can be penetrated by clamping screws in order to fix the feed unit 1 relative to the drive housing 5 in the respective angular position.

Fig. 4 ist eine Draufsicht ähnlich Fig. 3 bei verschwenkten Vorschubaggregaten 1. Wie aus Fig. 4 hervorgeht, sind die einzelnen Vorschubaggregate jeweils um einen Winkel α aus ihrer Parallellage zum Träger 6 herausgeschwenkt, so daß durch die Vorschubrollen 2 in Richtung des Pfeiles 16 geförderte Werkstücke gegen schematisch angedeutete Anschläge 17 vor, hinter und zwischen den Frässpindeln 12 bzw. deren Werkzeugen gedrückt werden. Durch die Winkelstellung der Vorschubaggregate 1 werden also die Werkstücke im wesentlichen in Richtung des Pfeiles 16abeaufschlagt, so daß aufgrund der durch die Anschläge 17 erzwungenen Parallelfördernng eine gegen die Anschläge 17 wirkende Kraftkomponente in Richtung des Pfeiles 16b auftritt.Fig. 4 is a plan view similar to Fig. 3 with pivoted feed units 1. As can be seen in Fig. 4, the individual feed units are each pivoted out of their parallel position to the carrier 6 by an angle α, so that by the feed rollers 2 in the direction of arrow 16 conveyed workpieces against schematically indicated stops 17 before, behind and between the milling spindles 12 or their tools are pressed. Due to the angular position of the feed units 1, the workpieces are substantially impacted in the direction of the arrow 16a, so that due to the parallel conveyance forced by the stops 17, one against the Stop 17 acting force component occurs in the direction of arrow 16b.

Werden umgekehrt die Vorschubaggregate 1 in Gegenrichtung aus der Parallellage, also etwa um den Winkel β heransgeschwenkt, so werden in entsprechender Weise die Werkstücke gegen einen hier nicht dargestellten, an sich bekannten Gegenanschlag auf der den Frässpindeln 12 gegenüberliegenden Seite gedrückt.Conversely, if the feed units 1 are pivoted in the opposite direction out of the parallel position, that is to say approximately by the angle β, the workpieces are pressed in a corresponding manner against a counter stop, not shown here, on the side opposite the milling spindles 12.

Ferner kann eine Vorrichtung Verwendung finden, bei welcher im Gegensatz zur Ausführungsform nach Fig. 1 alle Vorschubaggregate gemeinsam verstellbar sind. Hierzu kann, wie schematisch angedeutet, eine Schiebestange 18 vorgesehen sein, die jeweils am selben Punkt 19 der einzelnen Vorschubaggregate 1 gelenkig angreift. Diese Schiebestange 18 kann mittels einer Handhabe 20 oder einer anderen Betätigungseinrichtung in Richtung des Pfeiles 21 verschiebbar und in der jeweiligen Einstellage festlegbar sein. In der Darstellung nach Fig. 4 befindet sich die Schiebestange 18 unterhalb des Trägers 6.Furthermore, a device can be used in which, in contrast to the embodiment according to FIG. 1, all feed units can be adjusted together. For this purpose, as indicated schematically, a push rod 18 can be provided, which in each case articulates at the same point 19 of the individual feed units 1. This push rod 18 can be displaced in the direction of arrow 21 by means of a handle 20 or another actuating device and can be fixed in the respective setting position. 4, the push rod 18 is located below the carrier 6.

Wie aus den Figuren 3 und 4 weiter hervorgeht, können den einzelnen Vorschubaggregaten jeweils drei Vorschubrollen 2a,2b und 2c zugeordnet sein, von denen die jeweils mittlere Vorschubrolle 2b gegenüber dem auf der Frässpindel 12 befindlichen Werkzeug zurückversetzt ist. Auf diese Weise kann das auf der Frässpindel 12 befindliche Werkzeug zwischen die beiden äußeren Vorschubrollen 2a und 2c eintreten. Damit kann das Vorschubaggregat 1 so nahe wie möglich an das Werkzeug herangeführt werden.As can further be seen from FIGS. 3 and 4, three feed rollers 2a, 2b and 2c can be assigned to the individual feed units, of which the middle feed roller 2b in each case is compared to the tool located on the milling spindle 12 is set back. In this way, the tool located on the milling spindle 12 can enter between the two outer feed rollers 2a and 2c. The feed unit 1 can thus be brought as close as possible to the tool.

Fig. 5 ist der Schnitt V-V nach Fig. 1 in vergrößertem Maßstab und zeigt die senkrecht verlaufende Abtriebswelle 14, die über ein erstes aus zwei rechtwinklig zueinander angeordneten Kegelrädern 22 und 23 bestehendes Kegelradgetriebe an die durchgehende Antriebswelle 4 mit ihrem oberen Ende angeschlossen ist. Am unteren Ende der senkrecht verlaufenden Abtriebswelle 14 befindet sich ein weiteres aus zwei rechtwinklig zueinander liegenden Kegelrädern 24 und 25 bestehendes Kegelradgetriebe, welches eine horizontal verlaufende Antriebswelle 26 antreibt. Diese ist mit Kettenritzeln 27,28 und 29 versehen, über welche über zwischengeschaltete Ketten 30 (vgl. Fig. 6) weitere Vorschubwellen 31 und 32 antreibbar sind.Fig. 5 is the section V-V of FIG. 1 on an enlarged scale and shows the vertical output shaft 14, which is connected via a first bevel gear 22 and 23 arranged at right angles to each other to the continuous drive shaft 4 with its upper end. At the lower end of the vertically extending output shaft 14 there is another bevel gear transmission consisting of two bevel gears 24 and 25 lying at right angles to one another, which drives a horizontally extending drive shaft 26. This is provided with chain sprockets 27, 28 and 29, via which further feed shafts 31 and 32 can be driven via intermediate chains 30 (cf. FIG. 6).

Fig. 6 ist der Schnitt VI-VI nach Fig. 2 und verdeutlicht diese Verhältnisse. Wie sich aus Fig. 6 ergibt, sind an den Enden der Vorschubwellen 26 und 31 und 32 weitere Kettenritzel 27 angeordnet, die über zwischengeschaltete Ketten 34 mit Kettenritzeln 33 an den Enden der die Vorschubrollen 2 tragenden Wellen 35 in Verbindung stehen. Damit sind die die Vorschubrollen 2 tragenden Wellen 35 um die Antriebswellen 26 und 31 und 32 schwenkbar, so daß die Vorschubrollen einzeln gegen das Werkstück andrückbar sind.Fig. 6 is the section VI-VI of Fig. 2 and illustrates these relationships. As can be seen from FIG. 6, further chain sprockets 27 are arranged at the ends of the feed shafts 26 and 31 and 32, which chain sprockets 33 are connected to the ends of those carrying the feed rollers 2 by means of intermediate chains 34 Waves 35 are connected. The shafts 35 carrying the feed rollers 2 can thus be pivoted about the drive shafts 26 and 31 and 32, so that the feed rollers can be pressed individually against the workpiece.

Claims (8)

1. Vorschubeinrichtung für Holzbearbeitungsmaschinen, insbesondere für Fräsmaschinen zum Längsprofilieren von Hölzern, die aus mehreren in Vorschubrichtung hintereinander angeordneten Frässpindeln besteht, wobei die Vorschubeinrichtung mehrere hintereinander angeordnete einzelne Vorschubaggregate aufweist, die jeweils mit wenigstens zwei angetriebenen Vorschubrollen versehen, an einem gemeinsamen Träger gelagert und um eine senkrechte Achse gegenüber dem Träger schwenkbar sind, dadurch gekennzeichnet, daß eine durchgehende Antriebswelle (4) für die einzelnen Vorschubaggregate (1) vorgesehen ist, die oberhalb der Vorschubaggregate (1) verläuft, und an welcher für jedes Vorschubaggregat (1) jeweils ein aus zwei im rechten Winkel zueinander liegenden Kegelrädern (22,23) bestehendes Getriebe angeordnet ist, an welches eine senkrecht verlaufende Abtriebswelle (14) anschließt, an die ihrerseits über ein weiteres rechtwinkliges Kegelradgetriebe (24,25) die einzelnen horizontal verlaufenden Antriebswellen (26,31,32) für die Vorschubrollen (2) angeschlossen sind.1. Feed device for woodworking machines, in particular for milling machines for longitudinal profiling of wood, which consists of a plurality of milling spindles arranged one behind the other in the feed direction, the feed device having a plurality of individual feed units arranged one behind the other, each provided with at least two driven feed rollers, mounted on a common carrier and around a vertical axis can be pivoted relative to the carrier, characterized in that a continuous drive shaft (4) is provided for the individual feed units (1), which runs above the feed units (1), and on which for each Feed unit (1) each has a transmission consisting of two bevel gears (22, 23) at right angles to one another, to which a vertically extending output shaft (14) connects, to which the individual in turn is connected via a further right-angled bevel gear (24, 25) horizontally running drive shafts (26,31,32) for the feed rollers (2) are connected. 2. Vorschubeinrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die einzelnen Vorschubrollen (2) der gesamten sich über die Länge des Arbeitstisches (9) der Fräsmaschine erstreckenden Vorschubeinrichtung in etwa gleichem Abstand ohne größere dazwischenliegende Lücken hintereinander angeordnet sind.2. Feed device according to claim 1, characterized in that the individual feed rollers (2) of the entire feed device extending over the length of the work table (9) of the milling machine are arranged one behind the other at approximately the same distance without major gaps in between. 3. Vorschubeinrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß dem einzelnen Vorschubaggregat (1) jeweils drei Vorschubrollen (2a,2b,2c) zugeordnet sind.3. Feed device according to claim 1 or 2, characterized in that three feed rollers (2a, 2b, 2c) are assigned to each feed unit (1). 4. Vorschubeinrichtung nach Anspruch 3, dadurch gekennzeichnet, daß die drei Vorschubrollen (2a,2b,2c) gemeinsam über eine von dem unteren Kegelradgetriebe (24,25) der Abtriebswelle (14) angetriebene horizontale Welle (26) angetrieben sind, die beidseits über Kettentriebe (28,29,30) die Antriebswellen (31,32) für die beiden äußeren Vorschubrollen (2a,2c) und direkt die mittige Vorschubrolle (2b) antreibt.4. Feed device according to claim 3, characterized in that the three feed rollers (2a, 2b, 2c) are driven jointly via a horizontal shaft (26) driven by the lower bevel gear (24, 25) of the output shaft (14), which is driven on both sides Chain drives (28,29,30) the drive shafts (31,32) for the two outer feed rollers (2a, 2c) and directly drives the central feed roller (2b). 5. Vorschubeinrichtung nach Anspruch 4, dadurch gekennzeichnet, daß alle horizontal liegenden Antriebswellen für die Vorschubrollen (26,31,32) über Kettentriebe (27,33,34) die die Vorschubrollen (2a,2b,2c) tragenden Wellen (35) antreiben, welche um die Antriebswellen (26,31,32) der Vorschubrollen (2a,2b,2c) schwenkbar angeordnet sind.5. Feed device according to claim 4, characterized in that all horizontally located drive shafts for the feed rollers (26,31,32) via chain drives (27,33,34) drive the feed rollers (2a, 2b, 2c) carrying shafts (35) which are arranged pivotably about the drive shafts (26, 31, 32) of the feed rollers (2a, 2b, 2c). 6. Vorschubeinrichtung nach einem der Ansprüche 3 bis 5, dadurch gekennzeichnet, daß gegenüber dem Werkzeug auf der Frässpindel (12) die mittige Vorschubrolle (2b) zurückversetzt ist und daß die beiden äußeren Vorschubrollen (2a,2c) einen solchen Abstand zueinander haben, daß das auf der Frässpindel (12) befindliche Werkzeug teilweise zwischen die beiden äußeren Vorschubrollen (2a,2c) eintreten kann.6. Feed device according to one of claims 3 to 5, characterized in that the central feed roller (2b) is set back relative to the tool on the milling spindle (12) and that the two outer feed rollers (2a, 2c) are spaced from one another such that the tool located on the milling spindle (12) can partially enter between the two outer feed rollers (2a, 2c). 7. Vorschubeinrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Gehäuse der einzelnen Vorschubaggregate (1) gegenüber einem ortsfesten Teil des gemeinsamen Trägers (5,6) verschwenkbar sind und daß die Festlegung des Verstellwinkels mittels kreisbogenförmig gekrümmter Langlöcher (15) erfolgt, die von Klemmschrauben durchgriffen werden.7. Feed device according to one of the preceding claims, characterized in that the housing of the individual feed units (1) can be pivoted relative to a stationary part of the common support (5, 6) and that the adjustment angle is determined by means of elongated holes (15) curved in a circular arc, which are penetrated by clamping screws. 8. Vorschubeinrichtung nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß die Gehäuse der einzelnen Vorschubaggregate (1) gegenüber einem ortsfesten Teil des gemeinsamen Trägers (5,6) verstellbar sind, wobei den einzelnen Vorschubaggregaten (1) eine gemeinsame Schiebestange (18), eine Spindel oder dergleichen zugeordnet ist, die jeweils am selben Punkt (19) des einzelnen Vorschubaggregates (1) gelenkig angreift.8. Feed device according to one of claims 1 to 5, characterized in that the housing of the individual feed units (1) are adjustable relative to a stationary part of the common support (5, 6), the individual feed units (1) having a common push rod (18 ), a spindle or the like is assigned, which in each case articulates at the same point (19) of the individual feed unit (1).
EP82100899A 1981-02-12 1982-02-08 Feeding device for woodworking machine-tools Expired EP0058369B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT82100899T ATE22031T1 (en) 1981-02-12 1982-02-08 FEED DEVICE FOR WOODWORKING MACHINES.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3105083A DE3105083C2 (en) 1981-02-12 1981-02-12 "Feed device for woodworking machines"
DE3105083 1981-02-12

Publications (3)

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EP0058369A2 true EP0058369A2 (en) 1982-08-25
EP0058369A3 EP0058369A3 (en) 1984-03-28
EP0058369B1 EP0058369B1 (en) 1986-09-10

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ID=6124702

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Application Number Title Priority Date Filing Date
EP82100899A Expired EP0058369B1 (en) 1981-02-12 1982-02-08 Feeding device for woodworking machine-tools

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EP (1) EP0058369B1 (en)
AT (1) ATE22031T1 (en)
DE (1) DE3105083C2 (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0203893A1 (en) * 1985-05-15 1986-12-03 SAMCO INDUSTRIA S.p.A. Modular workpiece-feed mechanism for use with woodworking machinery
EP0374106A2 (en) * 1988-12-14 1990-06-20 Pertici S.P.A. Feed roller conveyer with a drive made up of flexible members
EP0492033A1 (en) * 1990-12-28 1992-07-01 SCM S.p.A. A power transmission device for feed wheels as used in automatic machines, and in through feed moulders for woodworking in particular
CN104858940A (en) * 2015-05-11 2015-08-26 迟学敏 Miniature band-sawing electrocar
CN110802679A (en) * 2019-10-30 2020-02-18 李新荷 Telescopic feeding pinch roller device for wood processing machinery
CN113199564A (en) * 2021-05-07 2021-08-03 邓文浩 Bench foot preparation is with wooden equidistance cutting equipment

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3708341A1 (en) * 1987-03-14 1988-09-29 Festo Kg Feeding device to be used in connection with woodworking machines for feeding the workpiece

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE880649C (en) * 1942-10-14 1953-06-22 Buerkle & Co Robert Veneer gluing machine
CH323073A (en) * 1954-05-08 1957-07-15 Bruendler Arthur Feed device for woodworking machines
DE1079822B (en) * 1956-08-16 1960-04-14 Reich Maschf Gmbh Karl Feed device for woodworking machines
DE1081210B (en) * 1956-08-16 1960-05-05 Reich Maschf Gmbh Karl Feed device for woodworking machines
FR1494230A (en) * 1966-07-26 1967-09-08 Guilliet Ets Feeding system for multi-tool woodworking machine

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT266424B (en) * 1963-08-01 1968-11-11 Lutz Kg Eugen Feed device for woodworking machines

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE880649C (en) * 1942-10-14 1953-06-22 Buerkle & Co Robert Veneer gluing machine
CH323073A (en) * 1954-05-08 1957-07-15 Bruendler Arthur Feed device for woodworking machines
DE1079822B (en) * 1956-08-16 1960-04-14 Reich Maschf Gmbh Karl Feed device for woodworking machines
DE1081210B (en) * 1956-08-16 1960-05-05 Reich Maschf Gmbh Karl Feed device for woodworking machines
FR1494230A (en) * 1966-07-26 1967-09-08 Guilliet Ets Feeding system for multi-tool woodworking machine

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0203893A1 (en) * 1985-05-15 1986-12-03 SAMCO INDUSTRIA S.p.A. Modular workpiece-feed mechanism for use with woodworking machinery
EP0374106A2 (en) * 1988-12-14 1990-06-20 Pertici S.P.A. Feed roller conveyer with a drive made up of flexible members
EP0374106A3 (en) * 1988-12-14 1991-11-06 Pertici S.P.A. Feed roller conveyer with a drive made up of flexible members
EP0492033A1 (en) * 1990-12-28 1992-07-01 SCM S.p.A. A power transmission device for feed wheels as used in automatic machines, and in through feed moulders for woodworking in particular
CN104858940A (en) * 2015-05-11 2015-08-26 迟学敏 Miniature band-sawing electrocar
CN110802679A (en) * 2019-10-30 2020-02-18 李新荷 Telescopic feeding pinch roller device for wood processing machinery
CN110802679B (en) * 2019-10-30 2021-05-14 广东典雅家具有限公司 Telescopic feeding pinch roller device for wood processing machinery
CN113199564A (en) * 2021-05-07 2021-08-03 邓文浩 Bench foot preparation is with wooden equidistance cutting equipment

Also Published As

Publication number Publication date
ATE22031T1 (en) 1986-09-15
DE3105083A1 (en) 1982-09-02
EP0058369B1 (en) 1986-09-10
DE3105083C2 (en) 1983-06-30
EP0058369A3 (en) 1984-03-28

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