DE2508675A1 - Belt saw for cutting planks of wood - with several saw blades in parallel - Google Patents

Belt saw for cutting planks of wood - with several saw blades in parallel

Info

Publication number
DE2508675A1
DE2508675A1 DE19752508675 DE2508675A DE2508675A1 DE 2508675 A1 DE2508675 A1 DE 2508675A1 DE 19752508675 DE19752508675 DE 19752508675 DE 2508675 A DE2508675 A DE 2508675A DE 2508675 A1 DE2508675 A1 DE 2508675A1
Authority
DE
Germany
Prior art keywords
band saw
saw blades
blades
saw
several
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.)
Withdrawn
Application number
DE19752508675
Other languages
German (de)
Inventor
Franz Gebert
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of DE2508675A1 publication Critical patent/DE2508675A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B27WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27BSAWS FOR WOOD OR SIMILAR MATERIAL; COMPONENTS OR ACCESSORIES THEREFOR
    • B27B15/00Band or strap sawing machines specially designed for length cutting of trunks
    • B27B15/08Band or strap sawing machines specially designed for length cutting of trunks with a plurality of band saw blades
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B27WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27BSAWS FOR WOOD OR SIMILAR MATERIAL; COMPONENTS OR ACCESSORIES THEREFOR
    • B27B13/00Band or strap sawing machines; Components or equipment therefor
    • B27B13/06Saw pulleys; Bearings therefor

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Sawing (AREA)

Abstract

The belt saw cutting operation is considerably speeded up by arranging several power driven saw blades behind the other on both sides of a vertical conveying plane of the trunk. The four blades rotate over two rollers each positioned on either side of the timber to be cut. Roller units are separately supported, independently adjustable, so that the saw blades may be clamped independently from each other. An adjusting device facilitates acceleration of the saw unit w.r.t. a vertical transporter.

Description

Bandsägevorrichtung zur Herstellung von Brettern Die Erfindung bezieht sich auf Bandsägevorrichtungen zur~Herstellung von Brettern. Band saw device for making boards The invention relates to on band saw devices for the production of boards.

Die durch die Erfindung zu lösende Aufgabe besteht darin, in einem Durchgang mehrere Bretter zu sägen und dadurch - gegenüber konventionellen Sögevorrichtungen - eine Zeiteinsparung zu erzielen.The object to be achieved by the invention consists in one To saw several boards through a passage and thereby - compared to conventional sawing devices - to achieve a time saving.

Diese Aufgabe wird gemäß der Erfindung dadurch gelöst, daß beidseitig einer vertikalen Transport-Mittelebene des Holzblockes mehrere motorisch angetriebene Bandsägeblätter - in Vorschubrichtung gesehen - hintereinander angeordnet sind.This object is achieved according to the invention in that both sides a vertical transport center plane of the wood block several motor-driven Band saw blades - viewed in the feed direction - are arranged one behind the other.

Dadurch ist es möglich, eine wesentlich höhere Sögeleistung zu erreichen, da aus dem Holzblock im selben Durchgang mehrere Bretter herausgeschnitten werden.This makes it possible to achieve a significantly higher suction performance, because several boards are cut out of the block of wood in the same pass.

In der Zeichnung ist ein Ausführungsbeispiel des Erfindungsgegenstandes dargestellt. Es zeigen: Figur 1 eine Ansicht der Bandsagevorrichtung von hinten; Figur 2 einen Schnitt durch eine Stufenrolle in schemticher Darstellungswei se.The drawing shows an exemplary embodiment of the subject matter of the invention shown. The figures show: FIG. 1 a view of the band saw device from the rear; FIG. 2 shows a section through a step roller in a schematic representation.

Die Bandsägevorrichtung gemäß Figur 1 enthalt eine bezogen auf eine vertikale Transport-Mittelebene M - links liegende und eine rechts liegende Bandsögeeinheit la, lb. Jede dieser Einheiten la, lb enthält mehrere Bandsogeblätter 2, 3, 4, 5, die oben und unten je um eine Stufenrolle 6, 9 geschlungen sind. Im dargestellten Beispiel sind die beiden Einheiten je mit vier hintereinander liegenden Bandsägeblättern 2 bis 5 ausgerüstet. Der seitliche Abstand dieser Sägeblätter voneinander wird in Ubereinstimmung mit der herzustellenden Brettdicke gewählt. Der Antrieb dieser Bandsägeblätter 2 bis 5 erfolgt durch je einen Antriebsmotor 10, dessen Kraft über je einen Antriebsriemen 11 auf je eine Antriebsrolle 12 übertragen wird. Die beiden unteren angetriebenen Rollen 9 sind als starre Stufenräder ausgebildet und übertragen somit auf die auf unterschiedlichen Radien laufenden Bandsägeblätter 2 bis 5 eine entsprechende Geschwindigkeit, die bei den äußeren Bandsägeblättern größer ist als bei den inneren.The band saw device according to Figure 1 contains a based on a vertical transport center plane M - band saw unit on the left and one on the right la, lb. Each of these units la, lb contains several band saw blades 2, 3, 4, 5, which are each looped around a step roller 6, 9 above and below. In the illustrated Examples are the two units each with four band saw blades one behind the other 2 to 5 equipped. The lateral distance between these saw blades is shown in Chosen to match the board thickness to be manufactured. The drive of these band saw blades 2 to 5 is carried out by a drive motor 10, the power of which is via a drive belt 11 is transferred to a drive roller 12 each. The two lower powered ones Rollers 9 are designed as rigid step wheels and thus transfer to the band saw blades 2 to 5 running at different radii a corresponding speed, which is larger with the outer band saw blades than with the inner ones.

Der in Bretter aufzuteilende Holzblock 15 bzw. Baumstamm wird mit Hilfe von oberen und unteren Einzugswalzen 36 in an sich bekannter Weise in der Mitte der vertikalen Ebene M in Vorschubrichtung horizontal gegen die Bandsägeblätter 2 bis 5 transportiert.The wood block 15 or tree trunk to be divided into boards is with Help of upper and lower feed rollers 36 in a known manner in the Center of the vertical plane M in the feed direction horizontally against the band saw blades 2 to 5 transported.

Die beiden Bandsägeeinheiten la und lb lassen sich relativ zueinander mit Hilfe einer Spindel 13 gleichzeitig horizontal verschieben, so daß also ihr gegenseitiger Abstand, bzw. derjenige von der vertikalen Mittelebene M, verändert werden kann. Diese Verschiebung erfolgt mit Hilfe von links- und rechtsgängigen Spindeln 13, die entweder aus einem Stück bestehen oder miteinander dreh fest verbunden sind. Auf diese Weise läßt sich der Abstand Q bezüglich der vertikalen Längsmittelebene M symmetrisch einstellen und den zu verarbeitende Holzblock anpassen. Die Sägeblötter sind somit in Vorschubrichtung gesehen hintereinander angeordnet Da es schwierig ist, die Bandsägeblätter einer Bandsägeeinheit auf eine genaue Länge herzustellen, so daß sie gleichmäßig gespannt sind, ist je die obere Stufenrolle 6 mit einzelnen Scheiben 16, 17, 18, 19 versehen, die untereinander auf einzeln einstellbaren Tragrohren 20. 21, 22, 23 sitzen. Diese Scheiben 16 bis 19 sind auf Nadellagern 28 oder sonstigen Wälzlagern einzeln drehbar abgestützt. Die Befestigung der je mit einem Flansch versehenen Rohre 20 bis 23-am Trager 8 erfolgt mit Hilfe von Schrauben 24, 25, 26, 27, die in vertikale Längslöcher 30 eingreifen, so daß also jedes einzelne Rohr in Vertikalrichtung eingestellt ist und damit die Spannung im jeweiligen Bandsägeblatt 2 bis 5 individuell reguliert werden kann. Zwischen den einzelnen Scheiben 16 bis 19 könnten in den VertikalebFnen allenfalls auch weitere Wälzlager angeordnet sein, um eine Reibung zwischen den einzelnen Scheiben 16 bis 19 zu vermindern, oder aber zwischen den Scheiben kann ein axialer Spalt vorhanden sein, was durch eine entsprechende Schulter od. dergl. auf den Rohren möglich ist.The two band saw units la and lb can be relative to one another with the help of a spindle 13 move horizontally at the same time, so that you mutual distance, or that of the vertical center plane M, changed can be. This shift is done with the help of left and right handed Spindles 13, which either consist of one piece or rotatably connected to each other are. In this way, the distance Q with respect to the vertical longitudinal center plane Adjust M symmetrically and adjust the wood block to be processed. The saw blades are thus arranged one behind the other as seen in the feed direction There it is difficult to get the band saw blades of a band saw unit to an exact length to produce so that they are evenly tensioned is the upper step role 6 provided with individual disks 16, 17, 18, 19, which one below the other on individually adjustable support tubes 20. 21, 22, 23 sit. These disks 16 to 19 are on Needle bearings 28 or other roller bearings individually rotatably supported. The attachment the tubes 20 to 23, each provided with a flange, on the carrier 8 are carried out with the aid of screws 24, 25, 26, 27 which engage in vertical longitudinal holes 30 so that so each individual tube is set in the vertical direction and thus the tension can be individually regulated in the respective band saw blade 2 to 5. Between In addition to the individual panes 16 to 19, there could at best be more in the vertical planes Rolling bearings can be arranged to create friction between the individual disks 16 to 19, or there may be an axial gap between the disks be, which od by a corresponding shoulder. The like. Is possible on the tubes.

Anstelle der Schraubenbefestigung können die einzelnen Scheiben auch auf einem drehbaren Exzenter sitzen, mit dem ein Ausgleich unterschiedlicher Bandsägespennungen möglich ist.Instead of screw fastening, the individual washers can also sit on a rotatable eccentric, with which a compensation of different bandsaw spacings is possible.

Bei einer anderen Ausführungsverionte ist es auch möglich, die Sägeblätter einzeln um je eine obere und untere Scheibe herumzuführen und mehrere derartige Scheiben mit unterschiedlichem Abstand zur Ebene M hintereinander anzuordnen und mit Einzelantrieben auszurüsten.In another version, it is also possible to use the saw blades individually around an upper and lower pane and several such To arrange discs with different distances from the plane M one behind the other and to be equipped with individual drives.

Claims (6)

Patentansprüche: Patent claims: fA 0 Bandsägevorrichtung zur Herstellung von Brettern, dadurch gekennzeichnet, daß beidseitig einer vertikalen Transport-Mittelebene (M) des Holzblockes (15) mehrere motorisch angetriebene Bandsägeblätter (2, 3, 4, 5) - in Vorschubrichtung gesehen - hintereinander angeordnet sind.fA 0 band saw device for the production of boards, characterized in that that on both sides of a vertical transport center plane (M) of the wood block (15) several motor-driven band saw blades (2, 3, 4, 5) - viewed in the feed direction - are arranged one behind the other. 2. Bandsägevorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß eine linksseitige und eine rechtsseitige Bandsägeeinheit (la, lb) vorhanden ist, wobei jede derselben einen oberen und einen unteren abgestuften Rollensatz mit mehreren auf unterschiedlichen Radien laufende Bandsägeblätter (2 bis 5) enthält. 2. Band saw device according to claim 1, characterized in that a left-hand and a right-hand band saw unit (la, lb) is available, each of which has an upper and a lower tiered roller set having a plurality of Contains band saw blades (2 to 5) running on different radii. 3. Bandsägevorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß der eine Rollensatz (6) jeder Bandsdgeeinheit (1a, lb) als einstückige Stufenrolle oder als untereinander fest verbundene koaxiale Scheiben ausgebildet ist und die Rollen des anderen Rollensatzes (9) einzeln gelagert und unabhängig voneinander verstellbar sind, um die einzelnen Bandsägeblätter (2 bis 5) unabhängig voneinander zu spannen. 3. Bandsaw device according to claim 1, characterized in that one set of rollers (6) of each belt saw unit (1a, lb) as a one-piece step roller or is designed as coaxial disks firmly connected to one another and the Roles of the other roller set (9) stored individually and independently of one another are adjustable to make the individual band saw blades (2 to 5) independent of each other to tension. 4. Bandsögevorrichtung nach Anspruch 1 und 3, dadurch gekennzeichnet, daß die einzeln gelagerten Scheiben (16 bis 19) mit ineinanderliegenden, höhenverstellbaren Rohren (20 bis 23) verbunden sind oder auf diesen drehbar gelagert sind. 4. Band saw device according to claim 1 and 3, characterized in that that the individually mounted discs (16 to 19) with nested, height-adjustable Pipes (20 to 23) are connected or are rotatably mounted on these. 5. Bandsägevorrichtung nach Anspruch 1 und 2, dadurch gekennzeichnet, daß Verstellmittel (13) vorhanden sind, mit denen die Bandsägeeinheiten (la, lb) relativ zur vertikalen Transport-Mittelebene (M) gemeinsam verstellbar sind.5. Band saw device according to claim 1 and 2, characterized in that that adjusting means (13) are available with which the band saw units (la, lb) are jointly adjustable relative to the vertical central transport plane (M). 6. Bandsägevorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß mehrere endlose Sägeblätter mit unterschiedlichem Abstand zur Transport-Mittelebene (M) in Vorschubrichtung hintereinander angeordnet sind und jedem dieser Sägeblätter eine eigene obere und untere Scheibe zugeordnet ist, um welche das betreffende Sägeblott geführt ist.6. Band saw device according to claim 1, characterized in that several endless saw blades with different distances to the transport center plane (M) are arranged one behind the other in the feed direction and each of these saw blades a separate upper and lower disk is assigned around which the relevant sawbottom is led.
DE19752508675 1974-03-06 1975-02-28 Belt saw for cutting planks of wood - with several saw blades in parallel Withdrawn DE2508675A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH314474A CH574802A5 (en) 1974-03-06 1974-03-06

Publications (1)

Publication Number Publication Date
DE2508675A1 true DE2508675A1 (en) 1975-09-11

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ID=4249546

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19752508675 Withdrawn DE2508675A1 (en) 1974-03-06 1975-02-28 Belt saw for cutting planks of wood - with several saw blades in parallel

Country Status (2)

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CH (1) CH574802A5 (en)
DE (1) DE2508675A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104690775A (en) * 2015-04-08 2015-06-10 黑龙江省林科木业有限公司 Eight united band saw machine and cutting method
CN104858938A (en) * 2015-06-24 2015-08-26 揭兴福 Sawmilling equipment
CN109849110A (en) * 2019-03-26 2019-06-07 闽侯县闽泰机械有限公司 A kind of more band saw driving mechanisms and its working method

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106945127A (en) * 2016-01-06 2017-07-14 吴海胜 A kind of full-automatic multi-disc novel band sawing machine

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104690775A (en) * 2015-04-08 2015-06-10 黑龙江省林科木业有限公司 Eight united band saw machine and cutting method
CN104690775B (en) * 2015-04-08 2017-07-04 黑龙江省林科木业有限公司 Eight joint group crossed belt saws and cutting process
CN104858938A (en) * 2015-06-24 2015-08-26 揭兴福 Sawmilling equipment
CN104858938B (en) * 2015-06-24 2017-03-08 揭兴福 A kind of sawmilling equipment
CN109849110A (en) * 2019-03-26 2019-06-07 闽侯县闽泰机械有限公司 A kind of more band saw driving mechanisms and its working method

Also Published As

Publication number Publication date
CH574802A5 (en) 1976-04-30

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