EP0273914A1 - Head for circular saw. - Google Patents
Head for circular saw.Info
- Publication number
- EP0273914A1 EP0273914A1 EP86906310A EP86906310A EP0273914A1 EP 0273914 A1 EP0273914 A1 EP 0273914A1 EP 86906310 A EP86906310 A EP 86906310A EP 86906310 A EP86906310 A EP 86906310A EP 0273914 A1 EP0273914 A1 EP 0273914A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- circular saw
- milling cutter
- cutter
- saw blade
- cage
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27B—SAWS FOR WOOD OR SIMILAR MATERIAL; COMPONENTS OR ACCESSORIES THEREFOR
- B27B5/00—Sawing machines working with circular or cylindrical saw blades; Components or equipment therefor
- B27B5/29—Details; Component parts; Accessories
- B27B5/30—Details; Component parts; Accessories for mounting or securing saw blades or saw spindles
- B27B5/34—Devices for securing a plurality of circular saw blades on a single saw spindle; Equipment for adjusting the mutual distance
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27B—SAWS FOR WOOD OR SIMILAR MATERIAL; COMPONENTS OR ACCESSORIES THEREFOR
- B27B33/00—Sawing tools for saw mills, sawing machines, or sawing devices
- B27B33/20—Edge trimming saw blades or tools combined with means to disintegrate waste
Definitions
- the invention relates to a circular saw head for sawing off the side products of tree trunks with an inner circular saw blade and an outer circular saw blade arranged at a distance from it, each of which is assigned a milling cutter with milling cutters arranged on the circumference on the side facing away from the tree trunk.
- planks, beams, squared timber and the like. can be made from the resulting side panels by saw cuts from the
- the clamping ring protrudes into the area of the previously milled edge.
- each circular saw blade is provided with a thickened flange which is attached to the ends of tubes which can be displaced telescopically relative to one another. The problem does not arise here to place a milling cutter between adjacent circular saw blades.
- Like milling cutter is arranged axially adjustable and protrudes through a central opening of the inner circular saw blade.
- the inner cutter which carries the outer circular saw blade, is extended axially out of the cage-like cutter until the desired distance between the circular saw blades is reached.
- This inner milling cutter is engaged over the entire width of the side board to be sawn off. The difference in diameter of the two milling cutters is small, the fastening screws of the circular saw blade lying on a relatively large diameter.
- the cage-type milling cutter is preferably provided with openings in the area of the milling cutter edges of the inner milling cutter, through which penetrated chips can emerge. This prevents the interior from clogging.
- FIG. 1 shows a simplified longitudinal section of a circular saw head with two axially adjustable circular saw blades
- FIG. 2 shows an enlarged section along the line II-II in FIG. 1
- FIG. 3 shows an enlarged section along the line III-III in FIG 1
- FIG. 4 the arrangement of two opposite pairs of circular saw heads when processing a tree trunk in a vertical section.
- the circular saw head shown in FIGS. 1-3 has an inner circular saw blade 1 which is screwed on the end face to a cage-shaped milling cutter 2.
- the milling cutter 2 is connected to a saw shaft 3 designed as a hollow shaft, which is rotatably mounted in a machine frame 4, which is only indicated in FIG. 1.
- the saw shaft 3 is reasonable only schematically a 'indicated belt drive 5 by a drive motor 6 driven ange ⁇ .
- An outer circular saw blade 7 is arranged axially at a distance from the inner circular saw blade 1 and is screwed on the end face to an inner milling cutter 8.
- the inner milling cutter 8 is arranged axially adjustable in the interior of the cage-like milling cutter 2 and projects outwards through a central opening 9 of the inner circular saw blade 1.
- the inner milling cutter 8 is connected to an inner saw shaft 10 which is guided axially displaceably in the saw shaft 3.
- a feather key 11 is used to transmit the rotational movement from the hollow shaft 3 to the inner saw shaft 10.
- An adjusting drive 12 which is indicated schematically in FIG. 1 as a pressure medium cylinder, engages on the inner saw shaft 10 and enables axial displacement. Exercise in which the outer saw blade 7 assumes, for example, the position 7 'indicated by dash-dotted lines. Here, the distance to the inner circular saw blade 1 changes.
- both the inner milling cutter 8 and the cage-type milling cutter 2 with three milling cutters 16 and 17 arranged on the circumference.
- each outer cutter edge 17 there is a chip space 18 assigned to it, in front of which the adjacent opening 15 is arranged.
- the cutters 16 of the inner cutter 8, which are each arranged below the opening 15, are thus on a diameter which is only slightly smaller than the diameter on which the outer cutter edges 17 lie.
- the clamping screws 19, with which the inner circular saw blade 1 is attached to the end face of the milling cutter 2 are distributed around the circumference of the milling cutter 2 such that they are respectively under the milling cutter edges 17 or between the chip space 18 and the adjacent opening 15 run.
- the cage-like milling cutter 2 can be made relatively thin-walled.
- the circular saw heads described are used, arranged in pairs one above the other, to saw off the side goods of a tree trunk 23 consisting of side boards 20 and rind boards 21.
- the described change in the axial distance between the inner circular saw blade 1 and the outer circular saw blade 7 sets the desired thickness of the side board 20.
- the cutters 2 and 8, which each carry the circular saw blade 1 or 7 and form its hub, mill off the side edges of the side boards 20 and the rind boards 21 during the sawing process. It is thereby achieved that there is no risk that the side goods collide with the hubs of the saw blades 1 or 7. In particular at the ends of the roots and / or in the event of a greater curvature of the stems, there is no risk of tarnishing the hubs.
- the circular saw blades 1 and 7 can also be composed of segments. As shown in FIG. 3 using the example of the inner circular saw blade 1, perforations 24 are provided in the area of the adjacent cutter blades 17 in the circular saw blade 1, into which the cutter blades 17 protrude. This prevents chips from jamming between the cutter edge 17 and the circular saw blade 1.
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Wood Science & Technology (AREA)
- Forests & Forestry (AREA)
- Sawing (AREA)
- Milling Processes (AREA)
Abstract
Une tête de scie circulaire pour découper des pièces latérales dans des troncs d'arbres comprend une lame intérieure (1) de scie circulaire et une lame extérieure (7) de scie circulaire, agencée à une certaine distance de la première. La lame intérieure (1) est montée par son côté frontal dans une fraise (2) à cage. La lame extérieure (7) est montée par son côté frontal dans une fraise intérieure (8) axialement mobile à l'intérieur de la fraise à cage (2), de sorte que l'écart entre les lames (1, 7) puisse être modifié. Les fraises (2, 8) taillent les bords longitudinaux des pièces latérales découpées par les lames de scie circulaire (1, 7) dans un tronc d'arbre.A circular saw head for cutting side pieces in tree trunks comprises an inner circular saw blade (1) and an outer circular saw blade (7), arranged at a distance from the first. The inner blade (1) is mounted from its front side in a cage cutter (2). The outer blade (7) is mounted from its front side in an axially movable inner cutter (8) inside the cage cutter (2), so that the gap between the blades (1, 7) can be amended. The cutters (2, 8) cut the longitudinal edges of the side pieces cut by the circular saw blades (1, 7) in a tree trunk.
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT86906310T ATE59802T1 (en) | 1985-10-17 | 1986-10-15 | CIRCULAR SAW HEAD. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3536983 | 1985-10-17 | ||
DE19853536983 DE3536983A1 (en) | 1985-10-17 | 1985-10-17 | CIRCULAR SAW HEAD |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0273914A1 true EP0273914A1 (en) | 1988-07-13 |
EP0273914B1 EP0273914B1 (en) | 1991-01-09 |
Family
ID=6283788
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP86906310A Expired - Lifetime EP0273914B1 (en) | 1985-10-17 | 1986-10-15 | Head for circular saw |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0273914B1 (en) |
DE (2) | DE3536983A1 (en) |
FI (1) | FI85667C (en) |
WO (1) | WO1987002297A1 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6637483B2 (en) | 2000-06-08 | 2003-10-28 | Key Knife, Inc. | Method and apparatus for profiling a log |
US6688351B2 (en) | 2002-02-20 | 2004-02-10 | Key Knife, Inc. | Adjustable profiling head for a wood cutting apparatus |
US6712105B1 (en) | 2002-09-26 | 2004-03-30 | Key Knife, Inc. | Method and apparatus for planing an article of wood |
US7219706B2 (en) | 2002-09-06 | 2007-05-22 | Key Knife, Inc. | Apparatus having adjustable saws for wood cutting |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IT1213905B (en) * | 1987-09-24 | 1990-01-05 | Giben Impianti Spa | METHOD AND APPARATUS FOR SECTIONING FINE PANELS OR PANEL PACKS WITH THE USE OF A SINGLE DISC SAW |
FI81289C (en) * | 1988-05-10 | 1990-10-10 | Kauko Rautio | sawing machine |
FI84236C (en) * | 1989-12-20 | 1991-11-11 | Kauko Rautio | BETTSKIVENHET. |
DE4014053C2 (en) * | 1990-05-02 | 1994-01-20 | Esterer Ag Maschf | Double-shaft circular saw machine |
DE4407379C2 (en) * | 1994-03-05 | 1999-08-19 | Esterer Ag Maschf | Sawing machine |
DE29508355U1 (en) * | 1995-05-24 | 1996-09-26 | Gebrüder Linck Maschinenfabrik "Gatterlinck" GmbH & Co KG, 77704 Oberkirch | Device for cutting logs into wood products and milling head for such a device |
DE19547193C2 (en) * | 1995-12-16 | 1999-01-28 | Linck Masch Gatterlinck | Method and device for cutting a tree trunk |
ATE208250T1 (en) * | 1996-06-20 | 2001-11-15 | Otto Martin Maschb Gmbh & Co | SCRATCH TOOL |
DE19955590A1 (en) * | 1999-11-18 | 2001-07-19 | Schmidt Fritz Stihl Dienst Mot | Sawing machine esp. circular sawing machine, with independently adjustable saw shaft units consists of two machine units with max. saw shaft units, and drive motor driving max. two shafts |
DE202011101445U1 (en) * | 2011-05-27 | 2012-08-28 | Wilhelm Altendorf Gmbh & Co. Kg | Swiveling scoring unit on both sides |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3750513A (en) * | 1972-05-15 | 1973-08-07 | Industrial Woodworking Mach | Telescoping arbor assembly |
US4266584A (en) * | 1979-06-27 | 1981-05-12 | Mainland Industries, Inc. | Edger saw combining chipper with circular saw blade |
EP0106907B1 (en) * | 1982-10-22 | 1988-01-07 | Gebrüder Linck, Maschinenfabrik "Gatterlinck" GmbH & Co.KG | Circular saw with adjustable saw blades |
US4456045A (en) * | 1983-01-13 | 1984-06-26 | Gregoire James L | Dual rotation chipping head |
-
1985
- 1985-10-17 DE DE19853536983 patent/DE3536983A1/en not_active Withdrawn
-
1986
- 1986-10-15 DE DE8686906310T patent/DE3676827D1/en not_active Expired - Fee Related
- 1986-10-15 EP EP86906310A patent/EP0273914B1/en not_active Expired - Lifetime
- 1986-10-15 WO PCT/EP1986/000590 patent/WO1987002297A1/en active IP Right Grant
-
1988
- 1988-03-24 FI FI881402A patent/FI85667C/en not_active IP Right Cessation
Non-Patent Citations (1)
Title |
---|
See references of WO8702297A1 * |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6637483B2 (en) | 2000-06-08 | 2003-10-28 | Key Knife, Inc. | Method and apparatus for profiling a log |
US6688351B2 (en) | 2002-02-20 | 2004-02-10 | Key Knife, Inc. | Adjustable profiling head for a wood cutting apparatus |
US7219706B2 (en) | 2002-09-06 | 2007-05-22 | Key Knife, Inc. | Apparatus having adjustable saws for wood cutting |
US6712105B1 (en) | 2002-09-26 | 2004-03-30 | Key Knife, Inc. | Method and apparatus for planing an article of wood |
Also Published As
Publication number | Publication date |
---|---|
FI881402A0 (en) | 1988-03-24 |
WO1987002297A1 (en) | 1987-04-23 |
FI881402A (en) | 1988-03-24 |
FI85667C (en) | 1992-05-25 |
DE3536983A1 (en) | 1987-04-23 |
EP0273914B1 (en) | 1991-01-09 |
FI85667B (en) | 1992-02-14 |
DE3676827D1 (en) | 1991-02-14 |
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