DE19517679A1 - Feed device for wood or plastics workpiece - Google Patents

Feed device for wood or plastics workpiece

Info

Publication number
DE19517679A1
DE19517679A1 DE1995117679 DE19517679A DE19517679A1 DE 19517679 A1 DE19517679 A1 DE 19517679A1 DE 1995117679 DE1995117679 DE 1995117679 DE 19517679 A DE19517679 A DE 19517679A DE 19517679 A1 DE19517679 A1 DE 19517679A1
Authority
DE
Germany
Prior art keywords
feed
cylindrical
feed device
feed element
workpiece
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
DE1995117679
Other languages
German (de)
Other versions
DE19517679C2 (en
Inventor
Roland Prof Dr Sc Tech Fischer
Klaus Dipl Ing Rehm
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.)
Technische Universitaet Dresden
Original Assignee
Technische Universitaet Dresden
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 Technische Universitaet Dresden filed Critical Technische Universitaet Dresden
Priority to DE1995117679 priority Critical patent/DE19517679C2/en
Publication of DE19517679A1 publication Critical patent/DE19517679A1/en
Application granted granted Critical
Publication of DE19517679C2 publication Critical patent/DE19517679C2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • B27C—PLANING, DRILLING, MILLING, TURNING OR UNIVERSAL MACHINES FOR WOOD OR SIMILAR MATERIAL
    • B27C5/00—Machines designed for producing special profiles or shaped work, e.g. by rotary cutters; Equipment therefor
    • B27C5/02—Machines with table
    • B27C5/06—Arrangements for clamping or feeding work
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27L—REMOVING BARK OR VESTIGES OF BRANCHES; SPLITTING WOOD; MANUFACTURE OF VENEER, WOODEN STICKS, WOOD SHAVINGS, WOOD FIBRES OR WOOD POWDER
    • B27L11/00—Manufacture of wood shavings, chips, powder, or the like; Tools therefor
    • B27L11/002—Transporting devices for wood or chips

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Manufacturing & Machinery (AREA)
  • Forwarding And Storing Of Filamentary Material (AREA)
  • Turning (AREA)

Abstract

The feed device is used to continuously supply workpieces of wood, plastics or similar. It has at least one cylindrical feed element (1) with a bolt-shaped profile (2), which is in contact with the workpiece (3) via friction or form-locking. The feed element is located and driven about an axis of rotation (5) which extends essentially parallel to the feed direction (7). The feed element is located beneath a contact surface (4) and the profile section extends at least slightly above this level. The profile consists at least partly of bolt-like teeth, with the front flank of the teeth located vertically to the cylindrical surface of the feed element.

Description

Die Erfindung betrifft eine Vorschubeinrichtung gemäß dem Oberbegriff des Anspruchs 1.The invention relates to a feed device according to the Preamble of claim 1.

Die Übertragung der Vorschubkräfte erfolgt in Holzbearbeitungs­ maschinen i.A. durch Vorschubwalzen, deren Drehachsen senkrecht zur Vorschubrichtung angeordnet sind. Durch den Kontakt der Mantelfläche der Vorschubwälzen mit der Holzoberfläche wird die Vorschubkraft über Kraft- und/oder Formschluß auf das Werkstück übertragen.The feed forces are transferred in woodworking machines i.A. by feed rollers, whose axes of rotation are perpendicular to Feed direction are arranged. Through the contact of the The lateral surface of the feed rollers with the wooden surface is the Feed force via force and / or form fit on the workpiece transfer.

Durch die Achsanordnung ist es an vielen Stellen nicht möglich, den Krafteinleitungsort beliebig in der Maschine zu positionieren. Insbesondere bei der Bearbeitung mit Messerwellen ergibt sich ein Mindestabstand zwischen der Wirkstelle der Bearbeitungswelle und der Vorschubwalze bzw. zwischen zwei Vorschubwalzen. Diese Mindestabstände schränken die Bearbeitung von kurzen Werkstücken in den Maschinen ein, bzw. bedingen eine Verringerung der Qualität der Bearbeitung.Due to the axis arrangement, it is not possible in many places Position the force application location anywhere in the machine. This results in particular when machining with knife shafts Minimum distance between the working point of the machining shaft and the feed roller or between two feed rollers. These Minimum distances restrict the processing of short workpieces in the machines, or cause a reduction in the quality of the Editing.

Des weiteren ist die Kontaktfläche zwischen den Vorschubwalzen und dem Werkstück durch die Krümmung der Oberfläche der Vorschubwalzen an der Krafteinleitungsstelle begrenzt. Dies bedingt eine Begrenzung für die Einleitung der Vorschubkräfte.Furthermore, the contact area between the feed rollers and the workpiece due to the curvature of the surface of the feed rollers limited at the point of force application. This requires one Limitation for the introduction of the feed forces.

Das Problem der Erfindung besteht darin, die übertragbaren Vorschubkräfte mittels einer Vorrichtung zu erhöhen.The problem with the invention is that of being transferable To increase feed forces by means of a device.

Erfindungsgemäß wird die Aufgabe mit den in den Ansprüchen genannten und im Ausführungsbeispiel näher erläuterten Mitteln gelöst.According to the invention the task with the in the claims  mentioned means and explained in more detail in the embodiment solved.

Durch die rage der Drehachse des schraubenförmigen Vorschubelements ist eine wesentliche Vergrößerung der möglichen Kontaktfläche zwischen Vorschubelement und Werkstück möglich. Die übertragbare Vorschubkraft kann damit in weiten Grenzen variiert werden und kann größer als bei herkömmlichen Vorschubwalzen sein.Due to the protrusion of the axis of rotation of the helical feed element is a significant increase in the possible contact area possible between feed element and workpiece. The transferable Feed force can and can be varied within wide limits be larger than with conventional feed rollers.

Die Krafteinleitung erfolgt linienförmig in der Richtung der Vorschubbewegung. Dies ermöglicht eine sichere Einleitung der Vorschubkraft auch bei extrem kurzen Werkstücken.The force is applied linearly in the direction of the Feed motion. This enables a safe initiation of the Feed force even with extremely short workpieces.

Die vorgeschlagene Einrichtung ermöglicht eine Verringerung des konstruktiv bedingten Abstandes zwischen den Vorschubelementen und anderen Maschinenteilen, z. B. von Bearbeitungswellen.The proposed facility allows a reduction in design-related distance between the feed elements and other machine parts, e.g. B. machining shafts.

Die Einrichtung kann sowohl unterhalb eines Maschinentisches, als auch über dem Werkstück angeordnet werden.The device can both below a machine table, as can also be arranged over the workpiece.

Durch die Drehrichtung, die senkrecht zur Vorschubrichtung liegt, kann eine definierte Anlagekraft an einem seitlichen Anschlag erreicht werden, was eine definierte Führung ohne zusätzliche seitliche Führungselemente ermöglicht.Due to the direction of rotation, which is perpendicular to the feed direction, can have a defined contact force on a side stop what a defined leadership can be achieved without additional allows lateral guide elements.

Die Erfindung wird nachstehend an einem Ausführungsbeispiel näher erläutert. In den Zeichnungen zeigenThe invention is illustrated below using an exemplary embodiment explained. Show in the drawings

Fig. 1 eine erfindungsgemäße Lösung in schematischer Darstellung als Seitenansicht Fig. 1 shows a solution according to the invention in a schematic representation as a side view

Fig. 2 eine zu Fig. 1 gehörige Vorderansicht. Fig. 2 is a front view belonging to Fig. 1.

In Fig. 1. wird eine erfindungsgemäße Lösung in schematischer Darstellung gezeigt. Ein zylindrisches Vorschubelement 1 ist unterhalb der Auflageebene 4 angeordnet. Die Drehachse 5 des Vorschubelements liegt parallel zur Vorschubrichtung 7. Das Vorschubelement ist auf der Zylinderfläche schraubenförmig verzahnt. Die vorderen Flanken der Verzahnung stehen senkrecht zur Drehachse. Die Verzahnung ragt über ein bestimmtes Maß über die Auflageebene 4 hinaus, wodurch die Größe des Formschlusses zwischen Vorschubelement und Werkstück 3 bestimmt wird.A solution according to the invention is shown in a schematic representation in FIG . A cylindrical feed element 1 is arranged below the support plane 4 . The axis of rotation 5 of the feed element lies parallel to the feed direction 7 . The feed element is helically toothed on the cylinder surface. The front flanks of the toothing are perpendicular to the axis of rotation. The toothing protrudes beyond the support plane 4 by a certain amount, as a result of which the size of the positive connection between the feed element and the workpiece 3 is determined.

Die notwendige Normalkraft 8 zur Erzeugung des Reib- und Formschlusses zwischen Vorschubelement und Werkstück wird durch zwei Druckelemente 11, die als Andruckrollen ausgelegt sind, erzeugt.The necessary normal force 8 for generating the frictional and positive connection between the feed element and the workpiece is generated by two pressure elements 11 , which are designed as pressure rollers.

Durch Drehung des Vorschubelementes um seine Drehachse wird eine seitliche Führungskraft 8 erzeugt. Diese Kraft wird vorteilhaft gegen einen seitlichen Anschlag 9 abgestützt. Damit wird das Werkstück faktisch von selbst geführt.A lateral guide force 8 is generated by rotating the feed element about its axis of rotation. This force is advantageously supported against a lateral stop 9 . In fact, the workpiece is guided by itself.

BezugszeichenlisteReference list

1 zylindrisches Vorschubelement
2 schraubenförmige Profilierung
3 Werkstück
4 Auflageebene
5 Drehachse
6 Wirkstelle
7 Vorschubrichtung
8 Führungskraft
9 seitlicher Anschlag
10 Normalkraft
11 Druckelement 1 cylindrical feed element
2 helical profiles
3 workpiece
4 support level
5 axis of rotation
6 knitting point
7 feed direction
8 managers
9 side stop
10 normal force
11 pressure element

Claims (6)

1. Vorschubeinrichtung zum kontinuierlichen Fördern von Werkstücken aus Holz, Kunststoffen o. dgl., gekennzeichnet dadurch, daß wenigstens ein zylindrisches Vorschubelement (1) mit einer schraubenförmigen Profilierung (2) vorgesehen ist, die schraubenförmige Profilierung (2) über Reibung und/oder Formschluß mit dem Werkstück (3) in Eingriff steht, das zylindrische Vorschubelement (1) um seine Drehachse (5) antreibbar gelagert ist und die Drehachse (5) etwa parallel zur Vorschubrichtung (7) verläuft.1. Feed device for the continuous conveying of workpieces made of wood, plastics or the like, characterized in that at least one cylindrical feed element ( 1 ) with a helical profile ( 2 ) is provided, the helical profile ( 2 ) via friction and / or positive engagement is in engagement with the workpiece ( 3 ), the cylindrical feed element ( 1 ) is mounted so as to be drivable about its axis of rotation ( 5 ) and the axis of rotation ( 5 ) runs approximately parallel to the direction of advance ( 7 ). 2. Vorschubeinrichtung nach Anspruch 1, gekennzeichnet dadurch, daß das zylindrische Vorschubelement (1) unterhalb einer Auflageebene (4) angeordnet ist, und die schraubenförmige Profilierung (2) die Auflageebene (4) wenigstens geringfügig überragt.2. Feed device according to claim 1, characterized in that the cylindrical feed element ( 1 ) is arranged below a support plane ( 4 ), and the helical profile ( 2 ) at least slightly projects beyond the support plane ( 4 ). 3. Vorschubeinrichtung nach Anspruch 1 oder 2, gekennzeichnet dadurch, daß die schraubenförmige Profilierung (2) teilweise eine schraubenförmige Verzahnung ist, und die vordere Flanke der Verzahnung senkrecht zur zylindrischen Fläche des Vorschubelementes (1) steht.3. Feed device according to claim 1 or 2, characterized in that the helical profile ( 2 ) is partially a helical toothing, and the front flank of the toothing is perpendicular to the cylindrical surface of the feed element ( 1 ). 4. Vorschubeinrichtung nach Anspruch 1, gekennzeichnet dadurch, daß das Druckelement (11) ein weiteres zylindrisches Vorschubelement (1) ist, und die Führungskräfte (8) in gleicher Richtung verlaufen. 4. Feed device according to claim 1, characterized in that the pressure element ( 11 ) is a further cylindrical feed element ( 1 ), and the executives ( 8 ) run in the same direction. 5. Vorschubeinrichtung nach Anspruch 1, gekennzeichnet dadurch, daß parallel zur Vorschubrichtung (7) ein Anschlag (9) angeordnet ist, und das zylindrische Vorschubelement (1) über die Wirkstelle (6) eine seitliche Führungskraft (8) gegen den Anschlag (9) erzeugt.5. Feed device according to claim 1, characterized in that a stop ( 9 ) is arranged parallel to the feed direction ( 7 ), and the cylindrical feed element ( 1 ) via the active point ( 6 ) has a lateral guide force ( 8 ) against the stop ( 9 ) generated. 6. Vorschubeinrichtung nach Anspruch 1, gekennzeichnet dadurch, daß mehrere zylindrische Vorschubelemente (1) neben und/oder hintereinander angeordnet sind.6. Feed device according to claim 1, characterized in that a plurality of cylindrical feed elements ( 1 ) are arranged next to and / or one behind the other.
DE1995117679 1995-05-13 1995-05-13 Feed device for the continuous conveying of wooden workpieces in processing machines Expired - Fee Related DE19517679C2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE1995117679 DE19517679C2 (en) 1995-05-13 1995-05-13 Feed device for the continuous conveying of wooden workpieces in processing machines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1995117679 DE19517679C2 (en) 1995-05-13 1995-05-13 Feed device for the continuous conveying of wooden workpieces in processing machines

Publications (2)

Publication Number Publication Date
DE19517679A1 true DE19517679A1 (en) 1996-11-14
DE19517679C2 DE19517679C2 (en) 1999-02-04

Family

ID=7761880

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1995117679 Expired - Fee Related DE19517679C2 (en) 1995-05-13 1995-05-13 Feed device for the continuous conveying of wooden workpieces in processing machines

Country Status (1)

Country Link
DE (1) DE19517679C2 (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7827963U1 (en) * 1978-09-20 1979-01-04 Kronseder, Hermann, 8404 Woerth DEVICE FOR PROMOTING AND ALIGNMENT OF UPRIGHT VESSELS WITH OUT-OF-ROUND CROSS SECTION, ESPECIALLY IN LABELING MACHINES
DE8702111U1 (en) * 1986-10-31 1987-04-16 Wilfried Pavel Maschinenbau, 33790 Halle Elevator for garments hanging on hangers
DE9112590U1 (en) * 1991-10-10 1993-02-04 Robert Bosch Gmbh, 70469 Stuttgart Auger
DE4205092A1 (en) * 1992-02-20 1993-08-26 Bosch Gmbh Robert Bottle etc. conveyor with worm and faulty bottle ejector - has rotary cam turning and removing bottle from conveyor path on given signal during one revolution

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7827963U1 (en) * 1978-09-20 1979-01-04 Kronseder, Hermann, 8404 Woerth DEVICE FOR PROMOTING AND ALIGNMENT OF UPRIGHT VESSELS WITH OUT-OF-ROUND CROSS SECTION, ESPECIALLY IN LABELING MACHINES
DE8702111U1 (en) * 1986-10-31 1987-04-16 Wilfried Pavel Maschinenbau, 33790 Halle Elevator for garments hanging on hangers
DE9112590U1 (en) * 1991-10-10 1993-02-04 Robert Bosch Gmbh, 70469 Stuttgart Auger
DE4205092A1 (en) * 1992-02-20 1993-08-26 Bosch Gmbh Robert Bottle etc. conveyor with worm and faulty bottle ejector - has rotary cam turning and removing bottle from conveyor path on given signal during one revolution

Also Published As

Publication number Publication date
DE19517679C2 (en) 1999-02-04

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Legal Events

Date Code Title Description
OP8 Request for examination as to paragraph 44 patent law
D2 Grant after examination
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee