EP0058369B1 - Dispositif d'avance pour les machines-outils pour l'usinage du bois - Google Patents

Dispositif d'avance pour les machines-outils pour l'usinage du bois Download PDF

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Publication number
EP0058369B1
EP0058369B1 EP82100899A EP82100899A EP0058369B1 EP 0058369 B1 EP0058369 B1 EP 0058369B1 EP 82100899 A EP82100899 A EP 82100899A EP 82100899 A EP82100899 A EP 82100899A EP 0058369 B1 EP0058369 B1 EP 0058369B1
Authority
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.)
Expired
Application number
EP82100899A
Other languages
German (de)
English (en)
Other versions
EP0058369A2 (fr
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.)
Filing date
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/de
Publication of EP0058369A2 publication Critical patent/EP0058369A2/fr
Publication of EP0058369A3 publication Critical patent/EP0058369A3/de
Application granted granted Critical
Publication of EP0058369B1 publication Critical patent/EP0058369B1/fr
Expired legal-status Critical Current

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Classifications

    • 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. Such a device corresponds to an obviously prior art.
  • This feed device therefore has the advantage that additional counterholders or the like can be omitted, which are required in parallel conveyance of the workpieces parallel to the stops in order to generate the necessary counter pressure 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 therefore 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.
  • a feed device for woodworking machines is known from DE-B-1 081 210, in which the feed device has a plurality of feed units arranged one behind the other, which are provided with a driven feed roller mounted on a carrier and can be pivoted about a vertical axis relative to the carrier, whereby one vertical output shaft each drives the horizontal drive shaft for the feed roller via a right-angle bevel gear.
  • three feed rollers are assigned to the individual feed unit. These three feed rollers are driven together by the vertical output shaft located approximately in the longitudinal center of the individual feed unit, by expediently driving a horizontal shaft that 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, clamping screws being able to 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, 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 (see 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.
  • the axes of the individual milling spindles, to which the feed device is to be assigned in the embodiment shown, are indicated schematically in FIG. 3 and denoted by 12.
  • the individual feed units 1 are each pivotable about axes 13 with respect 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 top view similar to FIG. 3 with the feed units 1 pivoted.
  • the individual feed units are each pivoted out of their parallel position to the carrier 6 by an angle a, so that 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 essentially loaded in the direction of arrow 16a, so that a force component acting against the stops 17 in the direction of arrow 16b occurs due to the parallel conveyance forced by the stops 17.
  • 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.
  • the three feed rollers 2a, 2b and 2c can be assigned to the individual feed units, of which the middle feed roller 2b is set back relative to the tool on the milling spindle 12. 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 interposed 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 and are connected via chain 34 with chain sprockets 33 at the ends of the shafts 35 carrying the feed rollers 2.
  • 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.

Landscapes

  • 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)

Claims (8)

1. Dispositif d'avance pour machines d'usinage du bois, notamment pour des fraiseuses ou des toupies destinées au profilage longitudinal de bois, comprenant plusieurs broches porte-fraise disposées les unes derrière les autres dans le sens d'avancement, le dispositif d'avance comportant plusieurs groupes d'avance (1) individuels disposés les uns après les autres dans le sens d'avancement, qui comportent chacun au moins deux rouleaux d'avancement entraînés (menés) 2, sont montés sur un support commun (6) et peuvent pivoter par rapport à ce support autour d'un axe vertical, caractérisé en ce qu'il est prévu un arbre de transmission continu (4) pour entraîner les différents groupes d'avance (1), passant au-dessus des groupes d'avance (1), et sur lequel est placé, pour chaque groupe d'avance (1), un engrenage comprenant deux pignons coniques (22, 23) à angle droit, auquel est accouplé un arbre de transmission vertical (14), auquel sont alors accouplés, par l'intermédiaire d'un autre engrenage à pignon coniques à angle droit (24, 25), les différents arbres de transmission horizontaux (26, 31, 32) destinés à entraîner les rouleaux d'avancement (2).
2. Dispositif d'avance selon la revendication 1, caractérisé en ce que les différents rouleaux d'avancement (2) de l'ensemble du dispositif d'avance s'étendant sur la longueur du banc (9) de la fraiseuse sont placés les uns après les autres à peu près à une même distance, sans lacunes intercalaires importantes.
3. Dispositif d'avance selon la revendication 1 ou 2, caractérisé en ce qu'il correspond trois rouleaux d'avancement (2a, 2b, 2c) à chacun des groupes d'avance (1).
4. Dispositif d'avance selon la revendication 3, caractérisé en ce que les trois rouleaux d'avancement (2a, 2b, 2c) sont entraînés en commun par l'intermédiaire d'un arbre horizontal (26) entraîné par l'engrenage à pignons coniques inférieur (24, 25) de l'arbre de sortie (14), qui entraîne des deux côtés, par l'intermédiaire de transmissions à chaînes (28, 29, 30), les arbres de transmission (31.32) entraînant les deux rouleaux d'avancement extérieurs (2a, 2b), et directement le rouleau d'avancement central (2b).
5. Dispositif d'avance selon la revendication 4, caractérisé en ce que tous les arbres de transmission horizontaux entraînant les rouleaux d'avancement (26, 33, 34) entraînent les arbres (35) supportant les rouleaux d'avancement (2a, 2b, 2c) qui sont disposés de façon à pouvoir pivoter autour des arbres de transmission (26, 31, 32) entraînant les rouleaux d'avancement (2a, 2b, 2c).
6. Dispositif d'avance selon l'une des revendications 3 à 5, caractérisé en ce que le rouleau d'avancement central (2b) est décalé en arrière par rapport à l'outil situé sur la broche porte-fraise (12), et en ce que les deux rouleaux d'avancement extérieurs (2a, 2c) présentent entre eux une distance mutuelle telle que l'outil se trouvant sur la broche porte-fraise (12) peut pénétrer partiellement entre les deux rouleaux d'avancement extérieurs (2a, 2c).
7. Dispositif d'avance selon l'une des revendications précédentes, caractérisé en ce que les carters des différents groupes d'avance (1) peuvent pivoter par rapport à une partie fixe du support commun (5, 6), et en ce que l'angle de déplacement est fixé au moyen de trous longitudinaux (15) incurvés en arc de cercle, qui sont traversés par des vis de blocage.
8. Dispositif d'avance selon l'une des revendications 1 à 5, caractérisé en ce que les carters des différents groupes d'avance (1) peuvent être déplacés par rapport à une partie fixe du support (5, 6) commun, une barre coulissante (18), une broche ou une pièce analogue commune étant rattachée aux différents groupes d'avance (1) et étant articulée au même point (19) de chacun de ces groupes d'avance individuels (1).
EP82100899A 1981-02-12 1982-02-08 Dispositif d'avance pour les machines-outils pour l'usinage du bois Expired EP0058369B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT82100899T ATE22031T1 (de) 1981-02-12 1982-02-08 Vorschubeinrichtung fuer holzbearbeitungsmaschinen.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3105083 1981-02-12
DE3105083A DE3105083C2 (de) 1981-02-12 1981-02-12 "Vorschubeinrichtung für Holzbearbeitungsmaschinen"

Publications (3)

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

Family

ID=6124702

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82100899A Expired EP0058369B1 (fr) 1981-02-12 1982-02-08 Dispositif d'avance pour les machines-outils pour l'usinage du bois

Country Status (3)

Country Link
EP (1) EP0058369B1 (fr)
AT (1) ATE22031T1 (fr)
DE (1) DE3105083C2 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT8504900V0 (it) * 1985-05-15 1985-05-15 Samco Ind Spa Trascinatore modulare applicabile a macchine per la lavorazione del legno
DE3708341A1 (de) * 1987-03-14 1988-09-29 Festo Kg In verbindung mit holzbearbeitungsmaschinen zu verwendende vorschubeinrichtung zum vorschieben des werkstueckes
IT216026Z2 (it) * 1988-12-14 1991-04-26 Pertici S P A Trascinatore a rulli di avanzamentocon trasmissione ad organi flessibili
EP0492033B1 (fr) * 1990-12-28 1993-12-22 SCM S.p.A. Dispositif de transmission de puissance pour des rouleaux d'avancement utilisés dans des machines automatiques, de préférence machines à moulurer le bois
CN104858940A (zh) * 2015-05-11 2015-08-26 迟学敏 微型带锯电动车
CN110802679B (zh) * 2019-10-30 2021-05-14 广东典雅家具有限公司 一种木材加工机械用的伸缩进给压轮装置
CN113199564A (zh) * 2021-05-07 2021-08-03 邓文浩 一种凳脚制作用木头等距切割设备

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE880649C (de) * 1942-10-14 1953-06-22 Buerkle & Co Robert Furnierleimmaschine
CH323073A (de) * 1954-05-08 1957-07-15 Bruendler Arthur Vorschubeinrichtung für Holzbearbeitungsmaschinen
DE1079822B (de) * 1956-08-16 1960-04-14 Reich Maschf Gmbh Karl Vorschubvorrichtung fuer Holzbearbeitungsmaschinen
DE1081210B (de) * 1956-08-16 1960-05-05 Reich Maschf Gmbh Karl Vorschubeinrichtung fuer Holzbearbeitungsmaschinen
AT266424B (de) * 1963-08-01 1968-11-11 Lutz Kg Eugen Vorschubeinrichtung für Holzbearbeitungsmaschinen
FR1494230A (fr) * 1966-07-26 1967-09-08 Guilliet Ets Système d'amenage pour machine à bois à outils multiples

Also Published As

Publication number Publication date
EP0058369A2 (fr) 1982-08-25
EP0058369A3 (en) 1984-03-28
ATE22031T1 (de) 1986-09-15
DE3105083A1 (de) 1982-09-02
DE3105083C2 (de) 1983-06-30

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