EP1011937B1 - Device for cutting any width of wood or other materials - Google Patents

Device for cutting any width of wood or other materials Download PDF

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Publication number
EP1011937B1
EP1011937B1 EP98919072A EP98919072A EP1011937B1 EP 1011937 B1 EP1011937 B1 EP 1011937B1 EP 98919072 A EP98919072 A EP 98919072A EP 98919072 A EP98919072 A EP 98919072A EP 1011937 B1 EP1011937 B1 EP 1011937B1
Authority
EP
European Patent Office
Prior art keywords
drive shaft
circular saw
cutting device
cutting
saw blades
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 - Lifetime
Application number
EP98919072A
Other languages
German (de)
French (fr)
Other versions
EP1011937A1 (en
Inventor
Sven Blum
Peter Herbert
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.)
Raimann & Co KG GmbH
Raimann Holzoptimierung GmbH and Co KG
Original Assignee
INTERHOLZ TECHNIK 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
Priority claimed from DE29705755U external-priority patent/DE29705755U1/en
Priority claimed from DE29708539U external-priority patent/DE29708539U1/en
Application filed by INTERHOLZ TECHNIK GmbH filed Critical INTERHOLZ TECHNIK GmbH
Publication of EP1011937A1 publication Critical patent/EP1011937A1/en
Application granted granted Critical
Publication of EP1011937B1 publication Critical patent/EP1011937B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B27B5/00Sawing machines working with circular or cylindrical saw blades; Components or equipment therefor
    • B27B5/29Details; Component parts; Accessories
    • B27B5/30Details; Component parts; Accessories for mounting or securing saw blades or saw spindles
    • B27B5/34Devices for securing a plurality of circular saw blades on a single saw spindle; Equipment for adjusting the mutual distance
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00Cutting
    • Y10T83/647With means to convey work relative to tool station
    • Y10T83/6584Cut made parallel to direction of and during work movement
    • Y10T83/6587Including plural, laterally spaced tools
    • Y10T83/6588Tools mounted on common tool support
    • Y10T83/659Tools axially shiftable on support
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00Cutting
    • Y10T83/768Rotatable disc tool pair or tool and carrier
    • Y10T83/7809Tool pair comprises rotatable tools
    • Y10T83/7822Tool pair axially shiftable
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00Cutting
    • Y10T83/768Rotatable disc tool pair or tool and carrier
    • Y10T83/7809Tool pair comprises rotatable tools
    • Y10T83/7822Tool pair axially shiftable
    • Y10T83/7826With shifting mechanism for at least one element of tool pair
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00Cutting
    • Y10T83/768Rotatable disc tool pair or tool and carrier
    • Y10T83/7872Tool element mounted for adjustment
    • Y10T83/7876Plural, axially spaced tool elements
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00Cutting
    • Y10T83/929Tool or tool with support
    • Y10T83/9457Joint or connection
    • Y10T83/9464For rotary tool
    • Y10T83/9469Adjustable
    • Y10T83/9471Rectilinearly

Definitions

  • the invention relates to a cutting device for wood or other materials of any width according to the generic term of claim 1.
  • Such a cutting device can be found in commercially available Multi-blade or edging circular saws their use.
  • the basic structure of these systems is, for example in the wood lexicon by E. König, DRW-Verlags-GmbH, Stuttgart, 1977, 2nd edition, Volume I: S.101-102 and Volume II: S.468-469 described.
  • These types of circular saws usually have two or, more circular saw blades on a drive shaft, the distance between them can be varied.
  • the circular saw blades are to ensure free cutting in the cutting area, for example, by cupboards of the saw blade is usually made wider.
  • a resulting one The cutting width therefore results from the distance the side cutting edges of two side by side Circular saw blades. However, only by measuring the distance the resulting cutting widths mostly only predict poorly. Often, after a rough presetting a test cut is made, the finer one Readjustment follows.
  • the object of the present invention is a device for cutting wood or other materials to any Develop latitude that is flexible, cost-effective and adjustment options within the machine, which must be securely locked in saw mode, provides, the cutting widths by means of a suitable Measuring system are controllable and adjustable.
  • the cutting device has disk-shaped, axially displaceably mounted on the drive shaft Carrier body on which by means of suitable saw blade holders Mount at least one circular saw blade firmly is.
  • the circular saw blades are axially displaced by means of parallel to the axis of the drive shaft leading spindles penetrating the carrier body, the during the circular cutting movement of the circular saw blades on a circular path around the axis of the drive shaft move.
  • Carrier bodies result in a compact design that with a symmetrical arrangement of the lead screws on one as possible small, concentric to the axis of the drive shaft lying circumference, a smooth balanced cutting movement with the lowest possible additional inertia forces guaranteed.
  • the drive spindles are used to stop the drive shaft preferably a thread, e.g. have a trapezoidal thread, the transmission of power and movement to the respective axially displaceable support body.
  • Such an arrangement ensures that the Adjustment of the cutting width, in contrast to the use of multi-blade saw bushes, without time-consuming and labor-intensive Disassembly of the saw blades takes place inside the machine can.
  • the carrier bodies are compared to the sliding heads well-known, motor-adjustable multi-leaf Trimming circular saws, much narrower, see above that smaller minimum cutting widths and / or a larger one Number of mountable circular saw blades can be realized.
  • the invention also includes Variants in which several on a support body Circular saw blades are to be attached, which then face each other have a fixed distance and only together axially are movable. Variants are also conceivable, where there is no circular saw blade on individual carrier bodies is mounted. This can e.g. then be an advantage if fewer circular saw blades than existing ones in one operation Carrier bodies are needed, the expansion of the surplus Carrier body from the cutting device but uneconomical would.
  • axially fixed at least one carrier body In a preferred embodiment of the invention axially fixed at least one carrier body.
  • This carrier body is preferably on the outside at the end of the lead screws, the ends of which are freely rotatable in it, axially not are slidably mounted. This results in a cheaper one Distribution of those occurring during the cutting movement Centrifugal forces.
  • a circular saw blade On the axially fixed support body is preferred mounted a circular saw blade, from which the other cutting widths can be specified. But there are Variants are also conceivable in which there is no circular saw blade the fixed support body is mounted so that all Saw blades are axially displaceable.
  • the individual displaceable support body each independently to move axially.
  • Each lead screw is used only one carrier body moved while the other carrier body unaffected by the activated lead screw stay.
  • a carrier body of two in the same Distance from the axis of the drive shaft arranged itself axially diametrically opposed lead screws.
  • the resulting bundle of lead screws is preferred on a concentric to the axis of the drive shaft to arrange the circumference of the circle. This arrangement enables a symmetrical distribution of the lead screws in the same distance around the axis of the drive shaft.
  • the invention also includes Variants in which more than two lead screws per axially displaceable carrier bodies are provided.
  • the respective associated lead screws lead one of the transport movement serving axial displacement, which is preferably a rotational movement around your own Longitudinal axis corresponds and which by means of a gear can be synchronized between the two spindles.
  • axial displacement which is preferably a rotational movement around your own Longitudinal axis corresponds and which by means of a gear can be synchronized between the two spindles.
  • gear By the synchronized, counter or parallel transport movement the leadscrews the risk of tipping and / or jamming the carrier body on the drive shaft reduced.
  • this is Gear designed as a belt transmission.
  • the invention but also includes variants in which the coupling the transport movement by means of other gears, e.g. Gear- or chain transmission is realized.
  • these are or the gears arranged within a drive housing.
  • this results in a compact design and on the other hand ensures that e.g. during an editing operation no contamination in the form of chips contaminate or block individual gearbox.
  • Adjustment of the cutting widths by means of which the respective lead screws for implementation their transport movement can be driven is the Manual or motorized transport movement using a suitable tool on the respective neck pin.
  • This tool can be used, for example more precisely shaped, on the respective neck pin key to be put on and operated manually or be a motor-driven screwdriver, its drive shaft to be coupled in a rotationally fixed manner to the respective shoulder pin is.
  • the invention also includes variants in which the transport movement of the leading spindles to be driven centrally by means of the actual sawing machine, So be applied internally.
  • the neck pins are preferably from the elongated Ends of the lead screws shaped so that the transport movement easy to apply directly to a lead screw is.
  • a complete sentence Carrier body including the circular saw blades mounted on them together with the associated lead screws and the Drive housing, as a kit outside the machine room can be put together and like a tool change Saw sleeve can be pushed onto and fastened to the drive shaft.
  • the attachment is preferably axial by means of a To perform the locknut.
  • the cutting device according to the invention can be like a multi-blade saw box be equipped and enables outside the machine presets the cutting widths.
  • This Saw blade clamping device has at least one clamping element on, which is mounted in the drive shaft like a piston and that by means of a hydraulically generated force is to be moved radially.
  • a hydraulically unloaded Starting position of the clamping elements can be Circular saw blades axially on the drive shaft as before move.
  • the clamping elements can be brought into an end position, however which the circular saw blades form and / or non-positively, are connected to the drive shaft so that they rotate can no longer be moved axially on the drive shaft.
  • the saw blade clamping device has the advantage that a Safe clamping of a variable number of circular saw blades is possible in any position. They are not saw boxes still intermediate rings needed to have a fixed, sawing operation not adjustable distance between the individual Circular saw blades. Through the saw blade clamping device becomes an immovable during sawing and secure locking of the individual circular saw blades the drive shaft guaranteed.
  • the saw blade clamping device is also independent of to use the cutting device according to the invention. So is, for example, a use of the saw blade clamping device related to electric, hydraulic or manually axially positionable circular saw blades possible.
  • the saw blade clamping device is in the invention Trimming an axial securing of the positioned circular saw blades, relieving the transport spindles and blocking a small axial Achieve mobility due to thread play.
  • a significant time and labor saving when hiring of the cutting widths given the circular saw blades thanks to the quick and easy release Need can be moved axially immediately and afterwards are to be locked again immediately.
  • the circular saw blades are preferably fixed on disk-shaped Carrier bodies according to claim 1 or in known Mounted on designated sheet receiving rings. By means of the carrier body or the sheet receiving rings the circular saw blades are axially displaceable on the drive shaft stored. Because both the support body and the sheet receiving rings compared to the sliding heads known, Motorized multi-blade and edging circular saws can be made much narrower, are smaller minimum cutting widths and / or a larger one Number of circular saw blades that can be installed.
  • clamping elements in the form and effect of a radial sliding key two of which are preferably provided are, these are diametrically on the drive shaft are opposite.
  • the invention also includes variants where only one clamping element or where more than two Clamping elements are provided.
  • clamping elements be provided, which have a profile, for example in the locked state in a corresponding Profiling the circular saw blades, the support body or the sheet receiving rings engage e.g. An additional Establish positive locking.
  • hydraulic force by means of a manual or to apply motor-driven pistons.
  • the Piston is, for example, in a manual actuation with a handle or a handwheel over one in one Axially screw in or unscrew the threaded bolt move.
  • the hydraulic Force application by means of an internal machine or by means of a hydraulic system external to the machine is one for locking the Circular saw blades, or for the radial displacement of the clamping elements necessary pressure build-up by means of such System.
  • the saw blade clamping device is integrated into a hydraulic control and is therefore easy to use, quick, easy and safe to use. The same also applies when the saw blade clamping device is connected to a hydraulic system external to the machine.
  • the saw blade clamping device a pressure gauge, by means of which the hydraulic Force can be monitored.
  • a manometer on which can be read at what pressure the carrier body or the sheet receiving rings are tensioned, enables a Control over whether with regard to a safe machining process sufficient locking of the circular saw blades is present.
  • a measuring system provided for setting the cutting width at which the distance of the lateral cutting edges of two neighboring, circular saw blades adjustable relative to each other is measurable.
  • the measuring system preferably has a measuring plate with measuring surfaces on, which is rotatable and extendable, parallel rod arranged to the axis of the drive shaft with a Position measuring system firmly mounted in relation to the drive shaft connected is.
  • the invention also includes variants where such a measuring system outside the machine, for example in the assembly of the kit Cutting device is to be used.
  • the measuring plate provided a measuring insert, the two measuring surfaces which is parallel to each other, in a common Plane perpendicular to the axis of the drive shaft and that point in opposite directions.
  • the measuring system has a display on any one The measuring point must be set to zero so that the Cutting widths in the form of incremental incremental or chain dimensions are detectable.
  • the measuring system has a measured value memory and a Computing unit.
  • the individual are in the measured value memory Measuring points in the form of incremental chain or incremental dimensions and / or in the form of reference dimensions related to a reference point storable and mathematical in the computer unit to process with each other.
  • the measuring system has a display in which both the fixed reference point relative to the drive shaft related measured value (reference measure) as well as the one by zeroing the display at a freely selectable reference point related incremental measured value (incremental dimension) can be displayed is.
  • This variant has the advantage that a quick determination the distance of the cutting edges of two neighboring ones Saw blades is possible. This means that during adjustment or Adjustment process compliance with the required The cutting edge distance is checked continuously.
  • FIG 1 is an embodiment of the invention Cutting device shown.
  • the figure shows a drive shaft 1 of a saw machine on which seven Circular saw blades 2a to 2g by means of a disc-shaped, Carrier body 3a to 3g shown in section are stored.
  • the circular saw blades 2a to 2g instruct cut on their outer circumference 4 and are each by means of saw blade receptacles 5 in a known manner on the Carrier bodies 3a to 3g attached.
  • the carrier body 3a to 3g are non-rotatably on the drive shaft by means of a parallel key 6 stored. They have several recesses, in those running parallel to the axis of the drive shaft 1 Leading spindles 7a, 7b are mounted.
  • the lead screws from those shown in Fig.1 for clarity only two have a trapezoidal thread and reach through a only schematically shown drive housing 8.
  • the other ends of the lead screws 7a, 7b each have two disks 11a to 11d and two locking pins each 12a to 12d, by means of which one of the carrier bodies 7g and axially fixed the circular saw blade 2g mounted on it are.
  • the cutting device as a whole is like a saw sleeve attached to the drive shaft 1 and attached by means of a shaft nut 13.
  • the neck pin 9a, 9b In the exemplary embodiment is by turning the neck pin 9a, 9b in one of the directions represented by arrows, one of the circular saw blades 2b axially in the direction of the arrow to move left or right.
  • the rotary transport movement of the two lead screws 7a, 7b is in the Drive housing coupled by means of a belt transmission, so that only one of the two lead screws 7a, 7b over the respective Neck pin 9a, 9b is to be driven.
  • the carrier body 3b and the circular saw blade mounted on it 2b are rotated by the rotating lead screws 7a, 7b axially displaced, since, as shown in Figure 2a, the external thread the lead screw 7 in a corresponding internal thread the recess penetrated by it in the carrier body 3 intervenes.
  • the other carrier bodies 3a and 3c to 3g are not influenced by the rotating lead screws 7a, 7b, there, as shown in Figure 2b, that of of the lead screw 7 penetrated recess of the unfeefed Carrier body 3 has a correspondingly large diameter and has no internal thread.
  • the carrier body 3g is axial fixed and not to be moved by any lead screw.
  • each are axially displaceable Carrier bodies 3a to 3f each assigned two lead screws, which are diametrically opposed to each other and the all together at the same distance from the axis of the drive shaft 1 are arranged.
  • six sliding supports 3a to 3f has the illustrated embodiment over a total of twelve lead screws.
  • Figure 3 is the axially displaceable circular saw blade 2b shown in Figure 1 in side view (section III-III). It is by means of the saw blade holder 5 in a known manner mounted on the carrier body 3b.
  • the carrier body 3b is by means of a parallel key 6 with the drive shaft 1 connected. Grip through a total of twelve lead screws 7a to 7.l symmetrically distributed, at the same distance from the Axis of the drive shaft, the carrier body 3b.
  • Two diametrically opposite leadscrews 7a, 7b engage as in Fig.2a into an internal thread of the recesses you have penetrated, while the remaining ten lead screws 7c to 7l like in Fig.2c without effect, freely rotatable in the carrier body 3b are stored.
  • the seven carrier bodies 3a to 3g shown in FIG are therefore not identical, since the position of the groove to Inclusion of the key 6 relative to the recesses Internal thread differs in each case and the carrier body 3g has no recesses with thread.
  • a measuring system is also shown schematically in FIG shown, which has a measuring indexable insert 14, the over has two measuring surfaces 15a, 15b which are parallel to one another, in a common plane, perpendicular to the axis of the drive shaft 1 and in opposite directions point.
  • the measuring indexable insert 14 can be rotated and extended, arranged parallel to the axis of the drive shaft 1 Rod 16 with an evaluation and display device 17th connected to a measuring system.
  • the two measuring surfaces 15a, 15b serve to measure the distance between the side cutting edges of the cutting edges 4 two adjacent circular saw blades 2a to 2g.
  • the position of the measuring indexable insert is an exemplary embodiment 14 shown at two different measuring points, the when determining the distance between the cutting edges 4 of the Circular saw blades 2b and 2c must be approached. Between The measuring insert is parallel to both measuring points by 180 ° to rotate to the axis of the drive shaft 1.
  • the measuring indexable insert 14 is with the corresponding measuring surface 15a to the side Cutting edge (left cutting edge in FIG. 1) of the cutting edge 4 of the axially fixed circular saw blade 2g.
  • the circular saw blade is the attachment pin provided in 7f 7f to be adjusted axially until the required dimension is available is. In the same way when setting the rest Measure. The last one set The circular saw blade is then to be regarded as a fixed saw blade.
  • An additional measured value memory and a computer unit also leave the setting of the circular saw blades and their control over a fixed common Fixed point too, thereby reducing the risk of error propagation to minimize and a subsequent change of the Simplify dimensions.
  • Figure 4 is the embodiment described in Figure 1 the cutting device according to the invention Cut into a wooden plank. It is clear the different resulting cutting widths 18a to 18f recognizable.
  • FIG 5 is a hydraulically operated saw blade clamping device shown.
  • Clamping elements 21 mounted, which are essentially the shape have a feather key and like a piston in accordingly precisely shaped, axially extending recesses of the Drive shaft 20 are guided and to do this in a known manner be sealed with a seal 34 against oil leakage.
  • the clamping elements 21 lie on the drive shaft 20 diametrically and parallel opposite and are by lifting screws 22 limited in their radial stroke.
  • the drive shaft 20 has a central blind hole 23, which at its inner end with a radial through hole 24 is connected. The radial through hole 24 ends in each case on the undersides of the clamping elements 21.
  • Die Drive shaft 20 has the central one at the exit point Blind hole 23 via a pressure chamber 25 in a piston 26 is axially displaceably mounted.
  • the piston 26 is via a threaded bolt 27 with a manually operated Pressure generating button 28 connected.
  • the pressure generation button 28 can optionally be designed with or without a manometer 30 become.
  • the manometer 30 is by a centric one Bore 31 in the threaded bolt 27 and through channels in the piston 26 connected to the pressure chamber 25.
  • the channels in Pistons 26 are not explicit for the sake of clarity shown.
  • the pressure chamber 25 and the one stored therein Pistons 26 are screwed onto the drive shaft 20 To close lid 29 pressure-tight.
  • the threaded bolt 27 is in a central threaded bore 33 of the lid 29 out.
  • the clamping elements 21 are designed as pistons and can be a specific one Drive stroke. They don't tension the ones in this figure shown circular saw blades 2a to 2g, in the individual, desired positions.
  • the manometer 30 can be read with which pressure the also not shown Carrier body 3a to 3g or the sheet receiving rings tensioned become.

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Sawing (AREA)
  • Debarking, Splitting, And Disintegration Of Timber (AREA)
  • Nonmetal Cutting Devices (AREA)
  • Dry Formation Of Fiberboard And The Like (AREA)
  • Dovetailed Work, And Nailing Machines And Stapling Machines For Wood (AREA)

Abstract

A device for cutting wood or other materials comprises a saw blade clamping device for radially and/or axially fixing circular saw blades mounted axially displaceable on a drive shaft. Support bodies are provided axially displaceable on the drive shaft for each circular saw blade. The axial displacement of the circular saw blades takes place by guide spindles running parallel to the axis of the drive shaft and passing through the support bodies. At least one clamping element is mounted in the drive shaft 1, 20. The clamping element is mounted radially displaceable. In a first stage, the circular saw blades which are mounted on the support bodies are thereby displaced. In a second stage, the circular saw blades or support bodies are connected to the drive shaft in keyed and/or force locking engagement. Through the device, a displacement of the cutting width is possible without the time and labor intensive dismantling of the saw blades. The support bodies for the circular saw blades are narrower than the known displacement heads for multi-blade circular saws. A larger number of circular saw blades can thereby be fitted on one axis.

Description

Die Erfindung betrifft eine Zuschneidevorrichtung für Holz oder andere Materialien auf beliebige Breite nach dem Oberbegriff des Anspruchs 1.The invention relates to a cutting device for wood or other materials of any width according to the generic term of claim 1.

Eine derartige Zuschneidevorrichtung findet u.a in handelsüblichen Vielblatt- oder Besäumkreissägen ihre Verwendung. Der prinzipielle Aufbau dieser Anlagen ist beispielsweise im Holz-Lexikon von E. König, DRW-Verlags-GmbH, Stuttgart, 1977, 2.Auflage, Band I: S.101-102 und Band II: S.468-469 beschrieben. Diese Kreissägenarten weisen in der Regel zwei oder, mehr Kreissägeblätter auf einer Antriebswelle auf, deren Abstand zueinander varierbar ist. Such a cutting device can be found in commercially available Multi-blade or edging circular saws their use. The basic structure of these systems is, for example in the wood lexicon by E. König, DRW-Verlags-GmbH, Stuttgart, 1977, 2nd edition, Volume I: S.101-102 and Volume II: S.468-469 described. These types of circular saws usually have two or, more circular saw blades on a drive shaft, the distance between them can be varied.

Um ein freies Schneiden zu gewährleisten, sind die Kreissägeblätter im Schneidenbereich beispielsweise durch Schränken des Sägeblatts meist breiter ausgeführt. Eine resultierende Schnittbreite ergibt sich demzufolge aus dem Abstand der seitlichen Schneidkanten zweier nebeneinanderliegender Kreissägeblätter. Jedoch lassen sich allein durch eine Abstandsmessung die resultierenden Schnittbreiten meist nur unzureichend vorhersagen. Häufig muß nach einer groben Voreinstellung ein Probeschnitt erfolgen, dem eine feinere Nachjustierung folgt.The circular saw blades are to ensure free cutting in the cutting area, for example, by cupboards of the saw blade is usually made wider. A resulting one The cutting width therefore results from the distance the side cutting edges of two side by side Circular saw blades. However, only by measuring the distance the resulting cutting widths mostly only predict poorly. Often, after a rough presetting a test cut is made, the finer one Readjustment follows.

Die Einstellung der Schnittbreiten erfolgt im einfachsten Fall über eine Vielblatt-Sägebüchse, die außerhalb einer Maschine zusammengestellt wird und auf welcher die einzelnen Sägeblätter aufgesetzt, distanziert und nicht weiter verstellbar festgezogen werden. Bei einem Blattwechsel wird die Sägebüchse als Ganzes ausgetauscht, um damit die Stillstandzeiten der Maschinen möglichst kurz zu halten.The easiest way to set the cutting widths Case over a multi-blade saw box that is outside of a Machine is put together and on which the individual Saw blades attached, distanced and no further can be tightened in an adjustable manner. When changing sheets the saw sleeve as a whole is replaced to reduce downtimes keep the machines as short as possible.

Eine Änderung der Schnittbreite ist bei diesen Maschinen nur mit einem zeit- und arbeitsaufwendigen Werkzeugwechsel möglich, da sich die einmal in der Maschine befindlichen Sägeblätter nicht mehr axial auf der Antriebswelle verschieben lassen. Im Falle einer Nachjustierung ist zudem die gesamte Sägebüchse wieder auszubauen, damit beispielsweise durch Einfügen weiterer Distanzstücke die jeweilige Schnittbreite auf das erforderliche Maß eingestellt werden kann.There is a change in the cutting width on these machines only with a time-consuming and labor-intensive tool change possible, because they are once in the machine Do not move the saw blades axially on the drive shaft to let. In the case of readjustment, the To remove the entire saw box again, for example the respective cutting width by inserting further spacers can be adjusted to the required level.

Diese Nachteile werden bei Anlagen vermieden, bei denen eine variable Schnittbreiteneinstellung durch eine elektronisch geregelte, motorisch oder hydraulisch durchgeführte, axiale Verschiebung von einzelnen oder mehrereren Sägeblättern realisiert wird. Im Firmenkatalog 2/94 "Vielblattkreissägen und Besäumkreissägen" der Firma Interholz Raimann GmbH ist auf Seite 12 in Bild 6 ein 4-fach Blattverstellungssystem dargestellt. Jedes der einzelnen Sägeblätter ist auf einem separaten Verschiebkopf montiert, der mittels eines greiferförmigen Arms über eine motorisch angetriebene Spindel eine axiale Verschiebung und genaue Positionierung des jeweiligen Sägeblatts gewährleistet. Die Positionierung der einzelnen Sägeblätter und deren möglicherweise durchzuführende Nachjustierung werden dabei durch elektronische Wegmeßeinrichtungen und exakt ansteuerbare Spindelmotoren realisiert.These disadvantages are avoided in systems where a variable cutting width setting by an electronic regulated, motorized or hydraulic, axial displacement of single or multiple saw blades is realized. In the company catalog 2/94 "multi-blade circular saws and trimming circular saws "from Interholz Raimann GmbH on page 12 in Figure 6 is a 4-way blade adjustment system shown. Each of the individual saw blades is mounted on a separate sliding head, which is by means of a gripper-shaped arm via a motor-driven one Spindle axial displacement and precise positioning of the respective saw blade guaranteed. The positioning of the individual saw blades and their possibly to be carried out Readjustments are made by electronic Position measuring devices and precisely controllable spindle motors realized.

Derartige Anlagen sind sehr kostenintensiv und können wirtschaftlich nur bei häufig wechselnden Schnittbreiten eingesetzt werden. Dieselben Nachteile bestehen auch für die in der WO 89/10824 beschriebene Kreissäge, deren vier angetriebene und mit Kreissägeblättern versehene Achsen mittels Servozylindern seperat einstellbar sind. Weitere Nachteile der oben beschriebenen motorisch verstellbaren Vielblatt- und Besäumkreissäge sind die begrenzte Anzahl von gleichzeitig einzusetzenden Sägeblättern sowie die im Vergleich zu Vielblatt-Sägebüchsen größere minimale Schnittbreite, da die vergleichsweise breite Bauart der Verschiebeköpfe ein enges Positionieren der einzelnen Sägeblätter nebeneinander nicht erlaubt.Such systems are very expensive and can economical only with frequently changing cutting widths be used. The same disadvantages exist for the circular saw described in WO 89/10824, the four driven axles with circular saw blades can be set separately using servo cylinders. Further Disadvantages of the motor-adjustable described above Multi-blade and edging circular saws are the limited number of saw blades to be used simultaneously as well as those in the Larger minimum cutting width compared to multi-blade saw boxes, because the comparatively wide design of the sliding heads a tight positioning of the individual saw blades not allowed side by side.

Weiterhin ist aus der US-Patentschrift 15 25 323 eine Zuschneidevorrichtung für Materialien auf beliebige Breite mit zwei Kreissägeblättern (12, 12') bekannt, die mittels einer zentrisch verlaufenden Antriebswelle (11) eine rotatorische Schnittbewegung ausführen und bei denen zur Variation einer Schnittbreite mindestens ein Kreissägeblatt axial auf der Antriebswelle verschiebbar verlagert ist, wobei scheibenförmige, auf der Antriebswelle axial verschiebbar gelagerte Trägerkörper (50, 60) vorgesehen sind, auf die mindestens jeweils ein Kreissägenblatt (12) fest zu montieren ist, wobei die axiale Verschiebung der Kreissägenblätter mittels parallel zur Achse der Antriebswelle (11) verlaufende, die Trägerkörper (60) durchgreifende Transportspindeln (52, 62) erfolgt, die sich während der kreisförmigen Schnittbewegung der Kreissägeblätter auf einer Kreisbahn um die Achse der Antriebswelle (11) bewegen.Furthermore, from US Pat. No. 15 25 323 Cutting device for materials of any width with two circular saw blades (12, 12 ') known by means of a centric drive shaft (11) a rotary Carry out a cutting movement and with those for variation a cutting width at least one circular saw blade axially is displaceably displaced on the drive shaft, wherein disc-shaped, axially displaceable on the drive shaft mounted support body (50, 60) are provided on the Mount at least one circular saw blade (12) firmly is, the axial displacement of the circular saw blades by means of parallel to the axis of the drive shaft (11) running transport spindles which pass through the carrier bodies (60) (52, 62) takes place during the circular Cutting movement of the circular saw blades on one Move the circular path around the axis of the drive shaft (11).

Aufgabe der vorliegenden Erfindung ist es, eine Vorrichtung zum Zuschneiden von Holz oder anderen Materialien auf beliebige Breite zu entwickeln, die eine flexible, kostengünstige und innerhalb der Maschine durchzuführende Verstellmöglichkeit, die im Sägebetrieb sicher zu arretieren ist, bereitstellt, wobei die Schnittbreiten mittels eines geeigneten Meßsystems kontrollier- und einstellbar sind.The object of the present invention is a device for cutting wood or other materials to any Develop latitude that is flexible, cost-effective and adjustment options within the machine, which must be securely locked in saw mode, provides, the cutting widths by means of a suitable Measuring system are controllable and adjustable.

Diese Aufgabe wird erfindungsgemäß durch eine Zuschneidevorrichtung mit den Merkmalen des Anspruchs 1 gelöst. According to the invention, this object is achieved by a cutting device solved with the features of claim 1.

Erfindungsgemäß weist die Zuschneidevorrichtung scheibenförmige, auf der Antriebswelle axial verschiebbar gelagerte Trägerkörper auf, auf die mittels geeigneter Sägeblattaufnahmen mindestens jeweils ein Kreissägeblatt fest zu montieren ist. Die axiale Verschiebung der Kreissägeblätter erfolgt mittels parallel zur Achse der Antriebswelle verlaufende, die Trägerkörper durchgreifende Leitspindeln, die sich während der kreisförmigen Schnittbewegung der Kreissägeblätter auf einer Kreisbahn um die Achse der Antriebswelle bewegen.According to the invention, the cutting device has disk-shaped, axially displaceably mounted on the drive shaft Carrier body on which by means of suitable saw blade holders Mount at least one circular saw blade firmly is. The circular saw blades are axially displaced by means of parallel to the axis of the drive shaft leading spindles penetrating the carrier body, the during the circular cutting movement of the circular saw blades on a circular path around the axis of the drive shaft move.

Durch Anordnung der Leitspindeln um die Achse der Antriebswelle und deren Lagerung in den scheibenförmigen, axial verschiebbaren und drehfest mit der Antriebswelle verbundenen Trägerkörpern ergibt sich eine kompakte Bauweise, die bei symmetrischer Anordnung der Leitspindeln auf einem möglichst kleinen, konzentrisch zur Achse der Antriebswelle liegenden Kreisumfang, eine ruhige ausgewuchtete Schnittbewegung mit geringstmöglichen zusätzlichen Massenträgheitskräften gewährleistet. Während des Einstellvorgangs bei stillstehender Antriebswelle dienen die Leitspindeln, die vorzugsweise ein Gewinde, z.B. ein Trapezgewinde aufweisen, der Kraft- und Bewegungsübertragung auf die jeweiligen axial zu verschiebenen Trägerkörper.By arranging the lead screws around the axis of the drive shaft and their storage in the disc-shaped, axial slidably and non-rotatably connected to the drive shaft Carrier bodies result in a compact design that with a symmetrical arrangement of the lead screws on one as possible small, concentric to the axis of the drive shaft lying circumference, a smooth balanced cutting movement with the lowest possible additional inertia forces guaranteed. During the setting process at The drive spindles are used to stop the drive shaft preferably a thread, e.g. have a trapezoidal thread, the transmission of power and movement to the respective axially displaceable support body.

Durch eine derartige Anordnung wird gewährleistet, daß die Verstellung der Schnittbreite, im Gegensatz zur Verwendung von Vielblatt-Sägebüchsen, ohne zeit- und arbeitsaufwendige Demontage der Sägenblätter innerhalb der Maschine erfolgen kann. Zudem sind die Trägerkörper im Vergleich zu den Verschiebeköpfen bekannter, motorisch verstellbare Vielblattund Besäumkreissägen, wesentlich schmaler ausgeführt, so daß kleinere minimale Schnittbreiten und/oder eine größere Anzahl von montierbaren Kreissägeblättern realisierbar ist. Such an arrangement ensures that the Adjustment of the cutting width, in contrast to the use of multi-blade saw bushes, without time-consuming and labor-intensive Disassembly of the saw blades takes place inside the machine can. In addition, the carrier bodies are compared to the sliding heads well-known, motor-adjustable multi-leaf Trimming circular saws, much narrower, see above that smaller minimum cutting widths and / or a larger one Number of mountable circular saw blades can be realized.

In der Regel ist ein Kreissägeblatt pro axial verschiebbaren Trägerkörper vorgesehen. Die Erfindung schließt auch Varianten ein, bei denen auf einem Trägerkörper mehrere Kreissägeblätter zu befestigen sind, die dann zueinander einen festgelegten Abstand aufweisen und nur zusammen axial verschiebbar sind. Ebenso sind aber auch Varianten denkbar, bei denen auf einzelne Trägerkörper kein Kreisägeblatt montiert ist. Dies kann z.B. dann von Vorteil sein, wenn bei einem Arbeitsgang weniger Kreissägeblätter als vorhandene Trägerkörper benötigt werden, der Ausbau des überzähligen Trägerkörpers aus der Zuschneidevorrichtung jedoch unwirtschaftlich wäre.As a rule, one circular saw blade per axially displaceable Carrier body provided. The invention also includes Variants in which several on a support body Circular saw blades are to be attached, which then face each other have a fixed distance and only together axially are movable. Variants are also conceivable, where there is no circular saw blade on individual carrier bodies is mounted. This can e.g. then be an advantage if fewer circular saw blades than existing ones in one operation Carrier bodies are needed, the expansion of the surplus Carrier body from the cutting device but uneconomical would.

In einer bevorzugten Ausführungsform der Erfindung ist mindestens ein Trägerkörper axial festgelegt. Dieser Trägerkörper befindet sich vorzugsweise außen am Ende der Leitspindeln, deren Enden in ihm frei drehbar, axial nicht verschiebbar gelagert sind. Dadurch ergibt sich eine günstigere Verteilung der während der Schittbewegung auftretenden Fliehkräfte.In a preferred embodiment of the invention axially fixed at least one carrier body. This carrier body is preferably on the outside at the end of the lead screws, the ends of which are freely rotatable in it, axially not are slidably mounted. This results in a cheaper one Distribution of those occurring during the cutting movement Centrifugal forces.

Auf dem axial festgelegten Trägerkörper ist vorzugsweise ein Kreissägeblatt montiert, von dem als Referenz aus die weiteren Schnittbreiten festgelegt werden. Es sind aber auch Varianten denkbar, bei denen kein Kreissägenblatt auf dem feststehenden Trägerkörper montiert ist, so daß alle Sägeblätter axial verschiebbar sind.On the axially fixed support body is preferred mounted a circular saw blade, from which the other cutting widths can be specified. But there are Variants are also conceivable in which there is no circular saw blade the fixed support body is mounted so that all Saw blades are axially displaceable.

In einer bevorzugten Variante der Erfindung sind die einzelnen verschiebbaren Trägerkörper jeweils unabhängig voneinander axial zu verschieben. Dabei wird mittels jeder Leitspindel immer nur ein Trägerkörper verschoben, während die anderen Trägerkörper von der aktivierten Leitspindel unbeeinfußt bleiben. In a preferred variant of the invention, the individual displaceable support body each independently to move axially. Each lead screw is used only one carrier body moved while the other carrier body unaffected by the activated lead screw stay.

Vorzugsweise wird ein Tägerkörper von zwei, im gleichen Abstand von der Achse der Antriebswelle angeordneten, sich diametral gegenüberliegenden Leitspindeln axial verschoben. Das sich daraus ergebene Bündel von Leitspindeln ist vorzugsweise auf einem konzentrisch zur Achse der Antriebswelle liegenden Kreisumfang anzuordnen. Diese Anordnung ermöglicht eine symmetrische Verteilung der Leitspindeln im gleichen Abstand um die Achse der Antriebswelle.Preferably a carrier body of two, in the same Distance from the axis of the drive shaft arranged itself axially diametrically opposed lead screws. The resulting bundle of lead screws is preferred on a concentric to the axis of the drive shaft to arrange the circumference of the circle. This arrangement enables a symmetrical distribution of the lead screws in the same distance around the axis of the drive shaft.

Durch die Verwendung von jeweils zwei, sich diametral gegenüberliegenden Leitspindeln pro verschiebbaren Trägerkörper wird während der axialen Verschiebung der Trägerkörper eine symmetrisch zur Achse der Antriebswelle angreifende Bewegungsübertragung gewährleistet. Die Erfindung schließt auch Varianten ein, bei denen mehr als zwei Leitspindeln pro axial verschiebbaren Trägerkörper vorgesehen sind.By using two diametrically opposite each other Leading spindles per movable carrier body becomes a during the axial displacement of the carrier body Movement transmission acting symmetrically to the axis of the drive shaft guaranteed. The invention also includes Variants in which more than two lead screws per axially displaceable carrier bodies are provided.

Die jeweils zusammengehörigen Leitspindeln führen eine der axialen Verschiebung dienende Transportbewegung aus, welche vorzugsweise einer Rotationsbewegung um die eigene Längsachse entspricht und welche mittels eines Getriebes zwischen den beiden Spindeln synchronisierbar ist. Durch die synchronisierte, gegen- oder gleichläufige Transportbewegung der Leitspindeln wird die Gefahr eines Verkippens und/oder Verklemmens der Trägerkörper auf der Antriebswelle vermindert. In einer Variante der Erfindung ist dieses Getriebe als ein Riemengetriebe ausgelegt. Die Erfindung schließt aber auch Varianten ein, bei denen die Kopplung der Transportbewegung mittels anderer Getriebe, z.B. Zahnrad- oder Kettengetriebe, realisiert wird. The respective associated lead screws lead one of the transport movement serving axial displacement, which is preferably a rotational movement around your own Longitudinal axis corresponds and which by means of a gear can be synchronized between the two spindles. By the synchronized, counter or parallel transport movement the leadscrews the risk of tipping and / or jamming the carrier body on the drive shaft reduced. In a variant of the invention, this is Gear designed as a belt transmission. The invention but also includes variants in which the coupling the transport movement by means of other gears, e.g. Gear- or chain transmission is realized.

In einer bevorzugten Variante der Erfindung sind das oder die Getriebe innerhalb eines Antriebsgehäuses angeordnet. Dadurch wird einerseits eine kompakte Bauweise erreicht und andererseits gewährleistet, daß z.B. während eines Bearbeitungsvorgangs keine Verunreinigungen in Form von Spänen die einzelnen Getriebe verschmutzen oder blockieren.In a preferred variant of the invention, these are or the gears arranged within a drive housing. On the one hand, this results in a compact design and on the other hand ensures that e.g. during an editing operation no contamination in the form of chips contaminate or block individual gearbox.

Erfindungsgemäß sind in einer Variante der Erfindung zur Einstellung der Schnittbreiten Ansatzzapfen vorgesehen, mittels denen die jeweiligen Leitspindeln zur Realisierung ihrer Transportbewegung antreibbar sind. Dabei ist die Transportbewegung manuell oder motorisch mittels eines geeigneten Werkzeugs auf die jeweiligen Ansatzzapfen aufzubringen. Dieses Werkzeug kann beispielsweise ein entsprechend passgenau geformter, auf die jeweiligen Ansatzzapfen aufzusetzender und manuell zu betätigender Schlüssel oder ein motorisch betriebener Schrauber sein, dessen Antriebswelle drehfest mit dem jeweiligen Ansatzzapfen zu koppeln ist. Die Erfindung schließt auch Varianten ein, bei denen die Transportbewegung der jeweils anzutreibenen Leitspindeln zentral mit Mitteln der eigentlichen Sägemaschine, also maschinenintern aufgebracht werden.According to the invention are in a variant of the invention Adjustment of the cutting widths by means of which the respective lead screws for implementation their transport movement can be driven. Here is the Manual or motorized transport movement using a suitable tool on the respective neck pin. This tool can be used, for example more precisely shaped, on the respective neck pin key to be put on and operated manually or be a motor-driven screwdriver, its drive shaft to be coupled in a rotationally fixed manner to the respective shoulder pin is. The invention also includes variants in which the transport movement of the leading spindles to be driven centrally by means of the actual sawing machine, So be applied internally.

Die Ansatzzapfen sind vorzugsweise aus den verlängerten Enden der Leitspindeln geformt, so daß die Transportbewegung in einfacher Weise direkt auf eine Leitspindel aufzubringen ist.The neck pins are preferably from the elongated Ends of the lead screws shaped so that the transport movement easy to apply directly to a lead screw is.

In einer bevorzugten Variante ist ein kompletter Satz Trägerkörper inklusive der auf ihnen montierten Kreissägeblätter zusammen mit den zugehörigen Leitspindeln und dem Antriebsgehäuse, bausatzartig außerhalb des Maschinenraums zusammenstellbar und bei einem Werkzeugwechsel wie eine Sägebüchse auf die Antriebswelle aufschieb- und befestigbar. Die Befestigung ist vorzugsweise axial mittels einer Nutmutter durchzuführen. Die erfindungsgemäße Zuschneidevorrichtung kann wie eine Vielblatt-Sägebüchse ausgerüstet werden und ermöglicht schon außerhalb der Maschine eine Voreinstellung der Schnittbreiten.In a preferred variant is a complete sentence Carrier body including the circular saw blades mounted on them together with the associated lead screws and the Drive housing, as a kit outside the machine room can be put together and like a tool change Saw sleeve can be pushed onto and fastened to the drive shaft. The attachment is preferably axial by means of a To perform the locknut. The cutting device according to the invention can be like a multi-blade saw box be equipped and enables outside the machine presets the cutting widths.

Bei vergleichsweise niedrigen Anschaffungskosten verbindet eine derartige Zuschneidevorrichtung die Vorteile einer Vielblatt-Sägebüchse, wie schneller Werkzeugsatzwechsel; mit geringen Schnittbreiten und ermöglicht darüber hinaus die Anpassung der Schnittbreiten ohne Ausbau der Vorrichtung.Connects at comparatively low acquisition costs such a cutting device the advantages of a Multi-blade saw box, such as quick tool set change; with small cutting widths and also allows the adjustment of the cutting widths without removing the device.

Zur radialen und/oder axialen Festlegung von axial verschiebbar auf einer Antriebswelle gelagerten Kreissägeblättern ist eine Sägeblattspannvorrichtung vorgesehen. Diese Sägeblattspannvorrichtung weist mindestens ein Spannelement auf, das in der Antriebswelle wie ein Kolben gelagert ist und das mittels einer hydraulisch erzeugten Krafteinwirkung radial zu verschieben ist. In einer hydraulisch unbelasteten Ausgangsstellung der Spannelemente lassen sich die Kreissägeblätter wie bisher axial auf der Antriebswelle verschieben. Durch hydraulisch erzeugte Druckkräfte sind die Spannelemente jedoch in eine Endstellung bringbar, in der die Kreissägeblätter form- und/oder kraftschlüssig, drehfest mit der Antriebswelle verbunden werden, so daß sie nicht mehr axial auf der Antriebswelle zu verschieben sind.For radial and / or axial fixing of axially displaceable circular saw blades mounted on a drive shaft a saw blade clamping device is provided. This Saw blade clamping device has at least one clamping element on, which is mounted in the drive shaft like a piston and that by means of a hydraulically generated force is to be moved radially. In a hydraulically unloaded Starting position of the clamping elements can be Circular saw blades axially on the drive shaft as before move. By hydraulic pressure forces are the clamping elements can be brought into an end position, however which the circular saw blades form and / or non-positively, are connected to the drive shaft so that they rotate can no longer be moved axially on the drive shaft.

Die Sägeblattspannvorrichtung hat den Vorteil, daß ein sicheres Klemmen einer variablen Anzahl von Kreissägeblätter in jeder Position möglich ist. Es werden weder Sägebüchsen noch Zwischenringe benötigt, um eine feste, im Sägebetrieb nicht zu verstellende Distanz zwischen den einzelnen Kreissägeblättern festzulegen. Durch die Sägeblattspannvorrichtung wird während des Sägebetriebs eine unverrückbare und sichere Arretierung der einzelnen Kreissägeblätter auf der Antriebswelle gewährleistet. Die Sägeblattspannvorrichtung ist auch unabhängig von der erfindungsgemäßen Zuschneidevorrichtung einzusetzen. So ist beispielsweise auch eine Verwendung der Sägeblattspannvorrichtung im Zusammenhang mit elektrisch, hydraulisch oder manuell axial positionierbaren Kreissägeblättern möglich.The saw blade clamping device has the advantage that a Safe clamping of a variable number of circular saw blades is possible in any position. They are not saw boxes still intermediate rings needed to have a fixed, sawing operation not adjustable distance between the individual Circular saw blades. Through the saw blade clamping device becomes an immovable during sawing and secure locking of the individual circular saw blades the drive shaft guaranteed. The saw blade clamping device is also independent of to use the cutting device according to the invention. So is, for example, a use of the saw blade clamping device related to electric, hydraulic or manually axially positionable circular saw blades possible.

Mit der Sägeblattspannvorrichtung ist bei der erfindungsgemäßen Zuschneidevorrichtung eine axiale Sicherung der positionierten Kreissägeblätter, eine Entlastung der Transsportspindeln und ein Blockieren einer geringen axialen Bewegbarkeit aufgrund von Gewindespiel zu erreichen. In jedem Fall ist gegenüber der Verwendung von Sägebüchsen eine wesentliche Zeit- und Arbeitsersparnis bei der Einstellung der Schnittbreiten gegeben, da die Kreissägeblätter durch die schnell und einfach zu lösende Arretierung bei Bedarf sofort axial verschoben werden können und danach gleich wieder zu arretieren sind.With the saw blade clamping device is in the invention Trimming an axial securing of the positioned circular saw blades, relieving the transport spindles and blocking a small axial Achieve mobility due to thread play. In each case is opposed to the use of saw boxes a significant time and labor saving when hiring of the cutting widths given the circular saw blades thanks to the quick and easy release Need can be moved axially immediately and afterwards are to be locked again immediately.

Durch eine gute Abdichtung der Spannelemente gegenüber der Antriebswelle besteht einerseits keine Verschmutzungsgefahr für die Kreissägeblätter oder die zu bearbeitenden Werkstücke, z.B. durch Hydrauliköl, andererseits ist auch die Spannvorrichtung selbst gegenüber einer Verschmutzung durch Sägespäne oder ähnlichem unempfindlich. Ein Großteil der anfallenden Späne wird zudem während des Sägebetriebs durch Fliehkräfte von der Vorrichtung fern gehalten.By a good sealing of the clamping elements against the On the one hand there is no risk of contamination of the drive shaft for the circular saw blades or the workpieces to be machined, e.g. through hydraulic oil, on the other hand, too Clamping device itself against contamination by Sawdust or the like insensitive. Much of the resulting chips are also removed during sawing Centrifugal forces kept away from the device.

Vorzugsweise sind die Kreissägeblätter fest auf scheibenförmigen Trägerkörpern gemäß Anspruch 1 oder in bekannter Weise auf dafür vorgesehenen Blattaufnahmeringen montiert. Mittels der Trägerkörper oder der Blattaufnahmeringe sind die Kreissägeblätter axial verschiebbar auf der Antriebswelle gelagert. Da sowohl die Trägerkörper als auch die Blattaufnahmeringe im Vergleich zu den Verschiebeköpfen bekannter, motorisch verstellbarer Vielblatt- und Besäumkreissägen wesentlich schmaler ausgeführt werden können, sind kleinere minimale Schnittbreiten und/oder eine größere Anzahl von montierbaren Kreissägeblättern realisierbar.The circular saw blades are preferably fixed on disk-shaped Carrier bodies according to claim 1 or in known Mounted on designated sheet receiving rings. By means of the carrier body or the sheet receiving rings the circular saw blades are axially displaceable on the drive shaft stored. Because both the support body and the sheet receiving rings compared to the sliding heads known, Motorized multi-blade and edging circular saws can be made much narrower, are smaller minimum cutting widths and / or a larger one Number of circular saw blades that can be installed.

In einer bevorzugten Ausgestaltung der Erfindung entsprechen die Spannelemente in Form und Wirkung einer radial verschiebbaren Paßfeder, von der vorzugsweise zwei vorgesehen sind, wobei sich diese auf der Antriebswelle diametral gegenüberliegen. Die Erfindung schließt auch Varianten ein, bei denen nur ein Spannelement oder bei denen mehr als zwei Spannelemente vorgesehen sind. Ebenso können Spannelemente vorgesehen sein, die eine Profilierung aufweisen, die beispielsweise im arretierten Zustand in eine entsprechende Profilierung der Kreissägeblätter, der Trägerkörper oder der Blattaufnahmeringe greift, um z.B. einen zusätzlichen Formschluß herzustellen.In a preferred embodiment of the invention the clamping elements in the form and effect of a radial sliding key, two of which are preferably provided are, these are diametrically on the drive shaft are opposite. The invention also includes variants where only one clamping element or where more than two Clamping elements are provided. Likewise, clamping elements be provided, which have a profile, for example in the locked state in a corresponding Profiling the circular saw blades, the support body or the sheet receiving rings engage e.g. An additional Establish positive locking.

In einer vorteilhaften Variante der Erfindung ist eine maximale radiale Verschiebung der Spannelemente durch Hubbegrenzungselemente, insbesondere durch Hubschrauben, zu begrenzen. Diese sind z.B. zweckmäßig, damit die Spannelemente nicht aus ihrer Lagerung fallen, wenn keine Kreissägeblätter auf der Antriebswelle aufgesteckt sind.In an advantageous variant of the invention is a maximum radial displacement of the clamping elements through stroke limitation elements, especially by lifting screws limit. These are e.g. expedient so that the clamping elements do not fall out of their storage if there are no circular saw blades are attached to the drive shaft.

In einer bevorzugten Ausgestaltung der Erfindung ist die hydraulische Krafteinwirkung mittels eines manuell oder motorisch zu verschiebenden Kolbens aufzubringen. Der Kolben ist bei einer manuellen Betätigung beispielsweise mit einem Handgriff oder einem Handrad über einen in ein Gewinde ein- bzw. auszuschraubenden Gewindebolzen axial zu verschieben.In a preferred embodiment of the invention hydraulic force by means of a manual or to apply motor-driven pistons. The Piston is, for example, in a manual actuation with a handle or a handwheel over one in one Axially screw in or unscrew the threaded bolt move.

In einer weiteren Variante der Erfindung ist die hydraulische Krafteinwirkung mittels einer maschineninternen oder mittels einer maschinenexternen Hydraulikanlage aufzubringen. Da viele Maschinen bereits über eine maschineninternen Hydraulikanlage verfügen, ist ein zur Arretierung der Kreissägeblätter, bzw. zur radialen Verschiebung der Spannelemente notwendiger Druckaufbau auch mittels einer derartigen Anlage aufzubringen. Die Sägeblattspannvorrichtung wird in eine Hydrauliksteuerung integriert und ist dadurch in einfache Weise schnell, einfach und sicher zu bedienen. Gleiches gilt auch bei einem Anschluß der Sägeblattspannvorrichtung an eine maschinenexterne Hydraulikanlage.In a further variant of the invention, the hydraulic Force application by means of an internal machine or by means of a hydraulic system external to the machine. Since many machines already have an internal machine Hydraulic system is one for locking the Circular saw blades, or for the radial displacement of the clamping elements necessary pressure build-up by means of such System. The saw blade clamping device is integrated into a hydraulic control and is therefore easy to use, quick, easy and safe to use. The same also applies when the saw blade clamping device is connected to a hydraulic system external to the machine.

In einer vorteilhaften Variante weist die Sägeblattspannvorrichtung ein Manometer auf, mittels dem die hydraulische Krafteinwirkung überwacht werden kann. Ein Manometer, auf dem abzulesen ist mit welchem Druck die Trägerkörper oder die Blattaufnahmeringe gespannt werden, ermöglicht eine Kontrolle darüber, ob im Hinblick auf einen sicheren Bearbeitungsprozeß eine außreichende Arretierung der Kreissägeblätter vorliegt.In an advantageous variant, the saw blade clamping device a pressure gauge, by means of which the hydraulic Force can be monitored. A manometer, on which can be read at what pressure the carrier body or the sheet receiving rings are tensioned, enables a Control over whether with regard to a safe machining process sufficient locking of the circular saw blades is present.

In einer bevorzugten Variante der Erfindung ist ein Meßsystem zur Einstellung der Schnittbreite vorgesehen, bei dem der Abstand der seitlichen Schneidkanten zweier benachbarter, relativ zueinander verstellbarer Kreissägeblätter meßbar ist.In a preferred variant of the invention is a measuring system provided for setting the cutting width at which the distance of the lateral cutting edges of two neighboring, circular saw blades adjustable relative to each other is measurable.

Das Meßsystem weist vorzugsweise eine Meßplatte mit Meßflächen auf, die über eine dreh- und ausfahrbare, parallel zur Achse der Antriebswelle angeordnete Stange mit einem fest gegenüber der Antriebswelle montierten Wegmeßsystem verbunden ist. Die Erfindung schließt auch Varianten ein, bei denen ein derartiges Meßsystem außerhalb der Maschine, beispielsweise bei der bausatzartigen Zusammenstellung der Zuschneidevorrichtung einzusetzen ist. The measuring system preferably has a measuring plate with measuring surfaces on, which is rotatable and extendable, parallel rod arranged to the axis of the drive shaft with a Position measuring system firmly mounted in relation to the drive shaft connected is. The invention also includes variants where such a measuring system outside the machine, for example in the assembly of the kit Cutting device is to be used.

In einer vorteilhaften Ausgestaltung der Erfindung ist als Meßplatte eine Meßwendeplatte vorgesehen, die zwei Meßflächen aufweist, die parallel zueinander, in einer gemeinsamen Ebene senkrecht zur Achse der Antriebswelle liegen und die in entgegengesetzte Richtungen weisen. Vorzugsweise weist das Meßsystem dabei eine Anzeige auf, die an einer beliebigen Meßstelle auf Null zu stellen ist, so daß die Schnittbreiten in Form inkrementaler Zuwachs- oder Kettenmaße erfaßbar sind.In an advantageous embodiment of the invention is as Measuring plate provided a measuring insert, the two measuring surfaces which is parallel to each other, in a common Plane perpendicular to the axis of the drive shaft and that point in opposite directions. Preferably the measuring system has a display on any one The measuring point must be set to zero so that the Cutting widths in the form of incremental incremental or chain dimensions are detectable.

In einer besonders vorteilhaften Ausgestaltung der Erfindung weist das Meßsystem einen Meßwertspeicher und eine Rechnereinheit auf. Im Meßwertspeicher sind die einzelnen Meßpunkte in Form von inkrementalen Ketten- oder Zuwachsmaßen und/oder in Form von auf einen Bezugspunkt bezogenen Bezugsmaßen abspeicherbar und in der Rechnereinheit mathematisch miteinander zu verarbeiten.In a particularly advantageous embodiment of the invention the measuring system has a measured value memory and a Computing unit. The individual are in the measured value memory Measuring points in the form of incremental chain or incremental dimensions and / or in the form of reference dimensions related to a reference point storable and mathematical in the computer unit to process with each other.

Dadurch lassen sich sofort die Auswirkungen einer Schnittbreiteneinstellung auf die anderen Schnittbreiten und die daraufhin durchzuführenden Anpassungen erkennen. Vorzugsweise verfügt das Meßsystem über eine Anzeige, in der sowohl der auf einen gegenüber der Antriebswelle festen Bezugspunkt bezogene Meßwert (Bezugsmaß) als auch der auf einen durch Nullung der Anzeige an einem frei wählbaren Bezugspunkt bezogene inkrementale Meßwert (Kettenmaß) anzeigbar ist.This allows you to immediately see the effects of a cutting width setting to the other cutting widths and the then recognize the adjustments to be made. Preferably the measuring system has a display in which both the fixed reference point relative to the drive shaft related measured value (reference measure) as well as the one by zeroing the display at a freely selectable reference point related incremental measured value (incremental dimension) can be displayed is.

Diese Variante hat den Vorteil, daß eine schnelle Bestimmung des Abstandes der Schneidkanten zweier benachbarter Sägeblätter möglich ist. Dadurch kann während des Justieroder Einstellvorgangs die Einhaltung des erforderlichen Schneidkantenabstands laufend kontrolliert werden. This variant has the advantage that a quick determination the distance of the cutting edges of two neighboring ones Saw blades is possible. This means that during adjustment or Adjustment process compliance with the required The cutting edge distance is checked continuously.

Weitere Vorteile der Erfindung werden bei der nachfolgenden Beschreibung der Ausführungsbeispiele anhand der Zeichnungen deutlich werden.Further advantages of the invention will be apparent from the following Description of the exemplary embodiments with reference to the drawings become clear.

Es zeigen:

Fig. 1 -
eine Zuschneidevorrichtung mit sieben Kreissägeblättern und ein Meßsystem zur Einstellung der Schnittbreite,
Fig. 2a -
die Führung einer Leitspindel in einem Trägerkörper mit Gewindebohrung,
Fig. 2b -
die Führung einer Leitspindel in einem Trägerkörper mit Durchgangsbohrung,
Fig. 3 -
die Seitenansicht eines auf der Antriebswelle verschiebbar montierten Kreissägeblattes,
Fig. 4 -
eine Zuschneidevorrichtung mit sieben Kreissägeblättern während des Sägevorgangs und
Fig. 5 -
eine hydraulisch betätigbare Sägeblattspannvorrichtung
Show it:
Fig. 1 -
a cutting device with seven circular saw blades and a measuring system for adjusting the cutting width,
Fig. 2a -
the guidance of a lead screw in a carrier body with a threaded hole,
Fig. 2b -
the guidance of a lead screw in a carrier body with a through hole,
Fig. 3 -
the side view of a circular saw blade slidably mounted on the drive shaft,
Fig. 4 -
a cutting device with seven circular saw blades during the sawing process and
Fig. 5 -
a hydraulically operated saw blade clamping device

In Figur 1 ist ein Ausführungsbeispiel der erfindungsgemäßen Zuschneidevorrichtung dargestellt. Die Figur zeigt eine Antriebswelle 1 einer Sägemaschiene, auf der sieben Kreissägeblätter 2a bis 2g mittels jeweils eines scheibenförmigen, im Schnitt dargestellten Trägerkörpers 3a bis 3g gelagert sind. Die Kreissägeblätter 2a bis 2g weisen an ihrem äußeren Umfang Schneiden 4 auf und sind jeweils mittels Sägeblattaufnahmen 5 in bekannter Weise auf den Trägerkörpern 3a bis 3g befestigt. Die Trägerkörper 3a bis 3g sind mittels einer Paßfeder 6 drehfest auf der Antriebswelle gelagert. Sie verfügen über mehrere Ausnehmungen, in denen parallel zur Achse der Antriebwelle 1 verlaufenden Leitspindeln 7a, 7b gelagert sind. Die Leitspindeln, von denen in Fig.1 der besseren Übersicht wegen nur zwei dargestellt sind, verfügen über ein Trapezgewinde und durchgreifen ein nur schematisch dargestelles Antriebsgehäuse 8. Sie verfügen an ihren aus dem Antriebsgehäuse 8 herausragenden Enden über Ansatzzapfen 9a, 9b, die im dargestellten Ausführungsbeispiel einen quadratischen Querschnitt aufweisen. Die anderen Enden der Leitspindeln 7a, 7b weisen jeweils zwei Scheiben 11a bis 11d und jeweils zwei Sicherungsstifte 12a bis 12d auf, mittels denen einer der Trägerkörper 7g und das auf ihn montierte Kreissägeblatt 2g axial festgelegt sind. Die Zuschneidevorrichtung ist als Ganzes, wie eine Sägebüchse auf die Antriebswelle 1 aufgesteckt und mittels einer Wellenmutter 13 befestigt.In Figure 1 is an embodiment of the invention Cutting device shown. The figure shows a drive shaft 1 of a saw machine on which seven Circular saw blades 2a to 2g by means of a disc-shaped, Carrier body 3a to 3g shown in section are stored. The circular saw blades 2a to 2g instruct cut on their outer circumference 4 and are each by means of saw blade receptacles 5 in a known manner on the Carrier bodies 3a to 3g attached. The carrier body 3a to 3g are non-rotatably on the drive shaft by means of a parallel key 6 stored. They have several recesses, in those running parallel to the axis of the drive shaft 1 Leading spindles 7a, 7b are mounted. The lead screws, from those shown in Fig.1 for clarity only two have a trapezoidal thread and reach through a only schematically shown drive housing 8. Sie have 8 protruding from the drive housing Ends via spigot 9a, 9b, in the illustrated embodiment have a square cross section. The other ends of the lead screws 7a, 7b each have two disks 11a to 11d and two locking pins each 12a to 12d, by means of which one of the carrier bodies 7g and axially fixed the circular saw blade 2g mounted on it are. The cutting device as a whole is like a saw sleeve attached to the drive shaft 1 and attached by means of a shaft nut 13.

Im Ausführungsbeispiel ist durch Drehung der Ansatzzapfen 9a, 9b in eine der durch Pfeile dargestellten Richtungen, eines der Kreissägeblätter 2b axial in Pfeilrichtung links oder rechts zu verschieben. Die rotatorische Transportbewegung der beiden Leitspindeln 7a, 7b ist in dem Antriebsgehäuse mittels eines Riemengetriebes gekoppelt, so daß nur eine der beiden Leitspindel 7a, 7b über den jeweiligen Ansatzzapfen 9a, 9b anzutreiben ist.In the exemplary embodiment is by turning the neck pin 9a, 9b in one of the directions represented by arrows, one of the circular saw blades 2b axially in the direction of the arrow to move left or right. The rotary transport movement of the two lead screws 7a, 7b is in the Drive housing coupled by means of a belt transmission, so that only one of the two lead screws 7a, 7b over the respective Neck pin 9a, 9b is to be driven.

Der Trägerkörper 3b und das auf ihn montierte Kreissägeblatt 2b werden von den rotierenden Leitspindeln 7a, 7b axial verschoben, da, wie in Figur 2a dargestellt, das Außengewinde der Leitspindel 7 in ein entsprechendes Innengewinde der von ihr durchgriffene Ausnehmung im Trägerkörper 3 eingreift. Die anderen Trägerkörper 3a und 3c bis 3g werden von den rotierenden Leitspindeln 7a, 7b nicht beeinflußt, da, wie in Figur 2b dargestellt, die von der Leitspindel 7 durchgriffene Ausnehmung des jeweils unbeeinfußten Trägerkörpers 3 einen entsprechend großen Durchmesser und kein Innengewinde aufweist.The carrier body 3b and the circular saw blade mounted on it 2b are rotated by the rotating lead screws 7a, 7b axially displaced, since, as shown in Figure 2a, the external thread the lead screw 7 in a corresponding internal thread the recess penetrated by it in the carrier body 3 intervenes. The other carrier bodies 3a and 3c to 3g are not influenced by the rotating lead screws 7a, 7b, there, as shown in Figure 2b, that of of the lead screw 7 penetrated recess of the unfeefed Carrier body 3 has a correspondingly large diameter and has no internal thread.

Zur axialen Verschiebung der anderen Trägerkörper 3a und 3c bis 3f sind andere, der Übersicht wegen nicht dargestellte Leitspindeln anzutreiben. Der Trägerkörper 3g ist axial festgelegt und durch keine Leitspindel zu verschieben.For the axial displacement of the other carrier bodies 3a and 3c to 3f are others, not shown for the sake of clarity To drive leading spindles. The carrier body 3g is axial fixed and not to be moved by any lead screw.

Im dargestellten Beispiel sind jedem axial verschiebbaren Trägerkörper 3a bis 3f jeweils zwei Leitspindeln zugewiesen, die sich jeweils diametral gegenüberliegen und die alle zusammen im gleichen Abstand von der Achse der Antriebswelle 1 angeordnet sind. Bei sechs verschiebbaren Trägerkörpern 3a bis 3f verfügt das dargestellte Ausführungsbeispiel über insgesamt zwölf Leitspindeln.In the example shown, each are axially displaceable Carrier bodies 3a to 3f each assigned two lead screws, which are diametrically opposed to each other and the all together at the same distance from the axis of the drive shaft 1 are arranged. With six sliding supports 3a to 3f has the illustrated embodiment over a total of twelve lead screws.

In Figur 3 ist das axial verschiebbare Kreissägeblatt 2b aus Fig.1 in Seitenansicht (Schnitt III-III) dargestellt. Es ist mittels der Sägeblättaufnahme 5 in bekannter Weise auf dem Trägerkörper 3b montiert. Der Trägerkörper 3b ist mittels einer Paßfeder 6 drehfest mit der Antriebswelle 1 verbunden. Insgesammt zwölf Leitspindeln 7a bis 7.l durchgreifen symmetrisch verteilt, im gleichen Abstand von der Achse der Antriebswelle den Trägerkörper 3b. Zwei diametral gegenüberliegende Leitspindeln 7a, 7b greifen wie in Fig.2a in ein Innengewinde der von Ihnen durchgriffenen Ausnehmungen, während die restlichen zehn Leitspindeln 7c bis 7l wie in Fig.2c ohne Wirkung, frei drehbar im Trägerkörper 3b gelagert sind. In Figure 3 is the axially displaceable circular saw blade 2b shown in Figure 1 in side view (section III-III). It is by means of the saw blade holder 5 in a known manner mounted on the carrier body 3b. The carrier body 3b is by means of a parallel key 6 with the drive shaft 1 connected. Grip through a total of twelve lead screws 7a to 7.l symmetrically distributed, at the same distance from the Axis of the drive shaft, the carrier body 3b. Two diametrically opposite leadscrews 7a, 7b engage as in Fig.2a into an internal thread of the recesses you have penetrated, while the remaining ten lead screws 7c to 7l like in Fig.2c without effect, freely rotatable in the carrier body 3b are stored.

Die sieben, in Fig.1 dargestellten Trägerkörper 3a bis 3g sind demnach nicht baugleich, da sich die Lage der Nut zur Aufnahme der Paßfeder 6 relativ zu den Ausnehmungen mit Innengewinde jeweils unterscheidet und der Trägerkörper 3g über keine Ausnehmungen mit Gewinde verfügt.The seven carrier bodies 3a to 3g shown in FIG are therefore not identical, since the position of the groove to Inclusion of the key 6 relative to the recesses Internal thread differs in each case and the carrier body 3g has no recesses with thread.

In Figur 1 ist darüber hinaus schematisch ein Meßsystem dargestellt, das eine Meßwendeplatte 14 aufweißt, die über zwei Meßflächen 15a, 15b verfügt, die parallel zueinander, in einer gemeinsamen Ebene, senkrecht zur Achse der Antriebswelle 1 liegen und die in entgegengesetzte Richtungen weisen. Die Meßwendeplatte 14 ist über eine dreh- und ausfahrbare, parallel zur Achse der Antriebswelle 1 angeordnete Stange 16 mit einem Auswertungs- und Anzeigegerät 17 eines Wegmeßsystems verbunden.A measuring system is also shown schematically in FIG shown, which has a measuring indexable insert 14, the over has two measuring surfaces 15a, 15b which are parallel to one another, in a common plane, perpendicular to the axis of the drive shaft 1 and in opposite directions point. The measuring indexable insert 14 can be rotated and extended, arranged parallel to the axis of the drive shaft 1 Rod 16 with an evaluation and display device 17th connected to a measuring system.

Die beiden Meßflächen 15a, 15b dienen der Abstandsmessung zwischen den seitlichen Schneidkanten der Schneiden 4 zweier benachbarter Kreissägeblätter 2a bis 2g. Im dargestellten Ausführungsbeispiel wird die Position der Meßwendeplatte 14 an zwei verschiedenen Meßpunkten dargestellt, die bei der Abstandsbestimmung zwischen den Schneidkanten 4 der Kreissägeblättern 2b und 2c anzufahren sind. Zwischen den beiden Meßpunkten ist die Meßwendeplatte um 180° parallel zur Achse der Antriebswelle 1 zu drehen.The two measuring surfaces 15a, 15b serve to measure the distance between the side cutting edges of the cutting edges 4 two adjacent circular saw blades 2a to 2g. In the illustrated The position of the measuring indexable insert is an exemplary embodiment 14 shown at two different measuring points, the when determining the distance between the cutting edges 4 of the Circular saw blades 2b and 2c must be approached. Between The measuring insert is parallel to both measuring points by 180 ° to rotate to the axis of the drive shaft 1.

Vorzugsweise wird bei der Einstellung von dem axial festgelegten Kreissägeblatt 2g ausgegangen. Die Meßwendeplatte 14 ist mit der entsprechenden Meßfläche 15a an die seitliche Schneidkante (in Fig.1 linke Schneidkante) der Schneide 4 des axial festgelegten Kreissägeblattes 2g anzulegen. Die Anzeige ist zu nullen, die Meßwendeplatte 14 zu wenden und mit der anderen Meßfäche 15b an die seitliche Scheidkante (in Fig.1 rechte Schneidkante) des danebenliegenden Kreissägeblattes 7f anzulegen. Durch Drehen des für dieses Kreissägeblatt 7f vorgesehenen Ansatzzapfens ist das Kreissägeblatt 7f axial zu verstellen, bis das gewünsche Maß vorhanden ist. In derselben Weise ist beim Einstellen der restlichen Maße vorzugehen. Das jeweils zuletzt eingestellte Kreissägeblatt ist dann als festes Sägeblatt anzusehen.Preferably, when setting the axially fixed Circular saw blade 2g. The measuring indexable insert 14 is with the corresponding measuring surface 15a to the side Cutting edge (left cutting edge in FIG. 1) of the cutting edge 4 of the axially fixed circular saw blade 2g. The Zero the display, turn the indexable insert 14 and with the other measuring surface 15b to the lateral cutting edge (in Fig.1 right cutting edge) of the circular saw blade next to it 7f. By turning the for this circular saw blade The circular saw blade is the attachment pin provided in 7f 7f to be adjusted axially until the required dimension is available is. In the same way when setting the rest Measure. The last one set The circular saw blade is then to be regarded as a fixed saw blade.

Ein zusätzlicher Meßwertspeicher und eine Rechnereinheit lassen darüber hinaus auch die Einstellung der Kreissägeblätter und deren Kontrolle gegenüber einem festen gemeinsamen Fixpunkt zu, um dadurch die Gefahr einer Fehlerfortpflanzung zu minimieren und eine nachträgliche Änderung der Maße zu vereinfachen.An additional measured value memory and a computer unit also leave the setting of the circular saw blades and their control over a fixed common Fixed point too, thereby reducing the risk of error propagation to minimize and a subsequent change of the Simplify dimensions.

In Figur 4 ist das in Figur 1 beschrieben Ausführungsbeispiel der erfindungsgemäßen Zuschneidevorrichtung beim Einschnitt in eine Holzplanke dargestellt. Es sind deutlich die unterschiedlichen resultierenden Schnittbreiten 18a bis 18f zu erkennen.In Figure 4 is the embodiment described in Figure 1 the cutting device according to the invention Cut into a wooden plank. It is clear the different resulting cutting widths 18a to 18f recognizable.

In Figur 5 ist eine hydraulisch betätigbare Sägeblattspannvorrichtung dargestellt. In der Antriebswelle 20 sind zwei Spannelemente 21 gelagert, die im wesentlichen die Form einer Paßfeder aufweisen und wie ein Kolben in entsprechend paßgenau geformte, axial verlaufende Ausnehmungen der Antriebswelle 20 geführt werden und dazu in bekannter Weise mit einer Dichtung 34 gegen Ölaustritt abgedichtet werden. Die Spannelemente 21 liegen sich auf der Antriebswelle 20 diametral und parallel gegenüber und sind durch Hubschrauben 22 in ihrem radialen Hub begrenzt. Die Antriebswelle 20 weist eine zentrische Sacklochbohrung 23 auf, die an ihrem inneren Ende mit einer radial verlaufenden Durchgangsbohrung 24 verbunden ist. Die radiale Durchgangsbohrung 24 endet jeweils an den Unterseiten der Spannelemente 21. Die Antriebswelle 20 verfügt am Austrittspunkt der zentrische Sacklochbohrung 23 über eine Druckkammer 25 in der ein Kolben 26 axial verschiebbar gelagert ist. Der Kolben 26 ist über einen Gewindebolzen 27 mit einem manuell zu betätigenden Druckerzeugungsknopf 28 verbunden. Der Druckerzeugungsknopf 28 kann wahlweise mit oder ohne Manometer 30 ausgeführt werden. Das Manometer 30 ist durch eine zentrische Bohrung 31 im Gewindebolzen 27 und über Kanäle im Kolben 26 mit der Druckkammer 25 verbunden. Die Kanäle im Kolben 26 sind zugunsten der Übersichtlichkeit nicht explizit dargestellt. Die Druckkammer 25 und der darin gelagerte Kolben 26 sind mittels eines auf die Antriebswelle 20 aufzuschraubenden Deckels 29 druckdicht zu verschließen. Der Gewindebolzen 27 wird in einer zentrischen Gewindebohrung 33 des Deckel 29 geführt.In Figure 5 is a hydraulically operated saw blade clamping device shown. There are two in the drive shaft 20 Clamping elements 21 mounted, which are essentially the shape have a feather key and like a piston in accordingly precisely shaped, axially extending recesses of the Drive shaft 20 are guided and to do this in a known manner be sealed with a seal 34 against oil leakage. The clamping elements 21 lie on the drive shaft 20 diametrically and parallel opposite and are by lifting screws 22 limited in their radial stroke. The drive shaft 20 has a central blind hole 23, which at its inner end with a radial through hole 24 is connected. The radial through hole 24 ends in each case on the undersides of the clamping elements 21. Die Drive shaft 20 has the central one at the exit point Blind hole 23 via a pressure chamber 25 in a piston 26 is axially displaceably mounted. The piston 26 is via a threaded bolt 27 with a manually operated Pressure generating button 28 connected. The pressure generation button 28 can optionally be designed with or without a manometer 30 become. The manometer 30 is by a centric one Bore 31 in the threaded bolt 27 and through channels in the piston 26 connected to the pressure chamber 25. The channels in Pistons 26 are not explicit for the sake of clarity shown. The pressure chamber 25 and the one stored therein Pistons 26 are screwed onto the drive shaft 20 To close lid 29 pressure-tight. The threaded bolt 27 is in a central threaded bore 33 of the lid 29 out.

Durch Drehen des Druckerzeugungskopfes 28 wird über den Gewindebolzen 27 mittels des Kolbens 26 in der mit Öl gefüllten Druckkammer 25 ein hydraulischer Druck erzeugt. Durch die zentrische Sacklochbohrung 23 und die radiale Durchgangsbohrung 24 in der Antriebswelle 20 wird dieser Druck bis zu den Spannelementen 21 gebracht. Die Spannelemente 21 sind als Kolben ausgebildet und können einen bestimmten Hub fahren. Sie spannen die in dieser Figur nicht dargestellten Kreissägeblätter 2a bis 2g, in den individuellen, gewünschten Positionen. Am Manometer 30 kann abgelesen werden mit welchem Druck die ebenfalls nicht dargestellten Trägerkörper 3a bis 3g oder die Blattaufnahmeringe gespannt werden.By rotating the pressure generating head 28 is over the Threaded bolt 27 by means of the piston 26 in the with oil filled pressure chamber 25 generates a hydraulic pressure. Through the central blind hole 23 and the radial Through hole 24 in the drive shaft 20 is this Pressure brought up to the clamping elements 21. The clamping elements 21 are designed as pistons and can be a specific one Drive stroke. They don't tension the ones in this figure shown circular saw blades 2a to 2g, in the individual, desired positions. The manometer 30 can be read with which pressure the also not shown Carrier body 3a to 3g or the sheet receiving rings tensioned become.

Claims (16)

  1. Device for cutting materials, preferably wood, to any width and having at least two circular saw blades (2a, 2b, 2c, 2d, 2e, 2f, 2g) which execute a rotational cutting movement when driven by means of a centrally aligned drive shaft (1, 20) and in which in order to vary the cutting width at least one circular saw blade (2a, 2b, 2c, 2d, 2e, 2f, 2g) is mounted for axial displacement on the drive shaft (1, 20) wherein disc-like support bodies (3a, 3b, 3c, 3d, 3e, 3f, 3g) are mounted axially displaceable on the drive shaft each to be securely fitted with at least one circular saw blade (2a, 2b, 2c, 2d, 2e, 2f, 2g) wherein the axial displacement of the circular saw blades (2a, 2b, 2c, 2d, 2e, 2f, 2g) is undertaken by means of rods (7a, 7b, 7c, 7d, 7e, 7f, 7g, 7h, 7i, 7j, 7k, 7l) which run parallel to the axis of the drive shaft (1, 20) and pass through the support bodies (3a, 3b, 3c, 3d, 3e, 3f, 3g) to move during the circular cutting movement of the circular saw blades (2a, 2b, 2c, 2d, 2e, 2f, 2g) on a circular path about the axis of the drive shaft (1, 20) characterised in that the rods (7a, 7b, 7c, 7d, 7e, 7f, 7g, 7h, 7i, 7j, 7k, 7l) are designed as guide spindles (7a, 7b, 7c, 7d, 7e, 7f, 7g, 7h, 7i, 7j, 7k, 7l) fixed axially on the drive shaft (1, 20) and each of which is screwed into an associated nut of a single support body (3a, 3b, 3c, 3d, 3e, 3f, 3g) associated with the guide spindle, and that all the support bodies (3a, 3b, 3c, 3d, 3e, 3f, 3g) can be fixed on the drive shaft (1, 20) through a common hydraulic clamping strip (21).
  2. Cutting device according to claim 1 characterised in that two guide spindles (7a, 7b, 7c, 7d, 7e, 7f, 7g, 7h, 7i, 7j, 7k, 7l) arranged diametrically opposite one another at the same distance from the axis of the drive shaft (1, 20) each move a support body (3, 3a, 3b, 3c, 3d, 3f) axially on the drive shaft (1, 20).
  3. Cutting device according to claims 1 and 2 characterised in that a transport movement of each two associated guide spindles (7a, 7b, 7c, 7d, 7e, 7f, 7g, 7h, 7i, 7j, 7k, 7l) which serve for the axial displacement of the support bodies (3a, 3b, 3c, 3d, 3e, 3f) can be synchronised by means of gearing.
  4. Cutting device according to claim 3 characterised in that the gearing is designed as belt gearing.
  5. Cutting device according to one of claims 3 or 4 characterised in that the or each gearing is mounted inside a drive housing (8).
  6. Cutting device according to one of the preceding claims characterised in that in order to adjust the cutting widths (18a, 18b, 18c, 18d, 18e, 18f) there are stud attachments (9a, 9b) by means of which the relevant guide spindles (7a, 7b, 7c, 7d, 7e, 7f, 7g, 7h, 7i, 7j, 7k, 7l) can be driven to generate the transport movement.
  7. Cutting device according to claim 6 characterised in that the stud attachments (9a, 9b) are shaped from the extend ends of the guide spindles (7a, 7b, 7c, 7d, 7e, 7f, 7g, 7h, 7i, 7j, 7k, 7l).
  8. Cutting device according to one of claims 6 or 7 characterised in that the transport movement is to be applied to the relevant stud attachments (9a, 9b) manually or motorised by means of a suitable tool.
  9. Cutting device according to one of the preceding claims characterised in that a complete set of support bodies (3a, 3b, 3c, 3d, 3e, 3f, 3g) including the circular saw blades (2a, 2b, 2c, 2d, 2e, 2f, 2g) mounted thereon together with the associated guide spindles (7a, 7b, 7c, 7d, 7e, 7f, 7g, 7h, 7i, 7j, 7k, 7l) and the drive housing (8) is to be assembled in structural kit form and when changing a tool such as a saw socket can be pushed onto the drive shaft (1, 20) and fixed.
  10. Cutting device according to one of the preceding claims characterised in that the circular saw blades (2a, 2b, 2c, 2d, 2e, 2f, 2g,) are to be fitted fixed on disc-like support bodies (3a, 3b, 3c, 3d, 3e, 3f, 3g) or fixed on known blade assembly rings and are mounted axially displaceable with same on the drive shaft (1, 20).
  11. Cutting device according to at least one of the preceding claims characterised in that the clamping elements (21) correspond in shape and functioning to spring keys.
  12. Cutting device according to at least one of the preceding claims characterised in that two clamping elements (21) are provided mounted diametrically opposite one another on the drive shaft (1, 20).
  13. Cutting device according to at least one of the preceding claims characterised in that stroke restricting elements (22), more particularly lift screws are provided for restricting the radial displacement of the clamping elements (21).
  14. Cutting device according to at least one of the preceding claims characterised in that a manual or motorised displaceable piston (26) is provided for applying the hydraulic force action.
  15. Cutting device according to at least one of the preceding claims 1 to 13 characterised in that a hydraulic unit is provided inside or outside of the machine for producing the hydraulic force action.
  16. Saw blade device according to at least one of the preceding claims characterised in that a pressure gauge (30) is provided for monitoring the hydraulic force action.
EP98919072A 1997-03-18 1998-03-16 Device for cutting any width of wood or other materials Expired - Lifetime EP1011937B1 (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
DE29705755U DE29705755U1 (en) 1997-03-18 1997-03-18 Cutting device for wood or other materials of any width
DE29705755U 1997-03-18
DE29708539U 1997-05-02
DE29708539U DE29708539U1 (en) 1997-05-02 1997-05-02 Cutting device for wood or other materials of any width
PCT/DE1998/000853 WO1998041369A1 (en) 1997-03-18 1998-03-16 Device for cutting any width of wood or other materials

Publications (2)

Publication Number Publication Date
EP1011937A1 EP1011937A1 (en) 2000-06-28
EP1011937B1 true EP1011937B1 (en) 2002-07-24

Family

ID=26060143

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98919072A Expired - Lifetime EP1011937B1 (en) 1997-03-18 1998-03-16 Device for cutting any width of wood or other materials

Country Status (10)

Country Link
US (2) USRE40349E1 (en)
EP (1) EP1011937B1 (en)
JP (1) JP2001515418A (en)
AT (1) ATE220974T1 (en)
CA (1) CA2283700A1 (en)
DE (1) DE59804917D1 (en)
DK (1) DK1011937T3 (en)
ES (1) ES2183352T3 (en)
PT (1) PT1011937E (en)
WO (1) WO1998041369A1 (en)

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US8549759B2 (en) 2008-07-25 2013-10-08 Milwaukee Electric Tool Corporation Adjustable shoe for a power tool
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JP5597475B2 (en) * 2010-08-06 2014-10-01 株式会社Isowa Cardboard sheet slitter scorer device, slitter knife and scorer position correction control method therefor
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CN109623949A (en) * 2019-01-18 2019-04-16 严昊昕 A kind of transverse direction sawing apparatus and timber dapper
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Also Published As

Publication number Publication date
DK1011937T3 (en) 2002-11-11
PT1011937E (en) 2002-12-31
ES2183352T3 (en) 2003-03-16
CA2283700A1 (en) 1998-09-24
ATE220974T1 (en) 2002-08-15
USRE40349E1 (en) 2008-06-03
JP2001515418A (en) 2001-09-18
EP1011937A1 (en) 2000-06-28
DE59804917D1 (en) 2002-08-29
US6393956B1 (en) 2002-05-28
WO1998041369A1 (en) 1998-09-24

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