EP0394242A1 - Kreissäge. - Google Patents
Kreissäge.Info
- Publication number
- EP0394242A1 EP0394242A1 EP88904939A EP88904939A EP0394242A1 EP 0394242 A1 EP0394242 A1 EP 0394242A1 EP 88904939 A EP88904939 A EP 88904939A EP 88904939 A EP88904939 A EP 88904939A EP 0394242 A1 EP0394242 A1 EP 0394242A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- circular saw
- support
- shaft
- saw
- circular
- 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
- B27B25/00—Feeding devices for timber in saw mills or sawing machines; Feeding devices for trees
- B27B25/02—Feeding devices for timber in saw mills or sawing machines; Feeding devices for trees with feed and pressure rollers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- 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
- B27B7/00—Sawing machines working with circular saw blades, specially designed for length sawing of trunks
- B27B7/04—Sawing machines working with circular saw blades, specially designed for length sawing of trunks by making use of a plurality of circular saws mounted on a single spindle; Arrangements for adjusting the mutual distances
-
- Y—GENERAL 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T83/00—Cutting
- Y10T83/647—With means to convey work relative to tool station
- Y10T83/6584—Cut made parallel to direction of and during work movement
- Y10T83/6592—Interrelated work-conveying and tool-moving means
- Y10T83/6598—Tool co-axial with work-conveying means
-
- Y—GENERAL 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T83/00—Cutting
- Y10T83/727—With means to guide moving work
- Y10T83/73—Guide fixed to or integral with stationary tool element
-
- Y—GENERAL 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T83/00—Cutting
- Y10T83/727—With means to guide moving work
- Y10T83/739—Positively confines or otherwise determines path of work
-
- Y—GENERAL 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T83/00—Cutting
- Y10T83/727—With means to guide moving work
- Y10T83/741—With movable or yieldable guide element
-
- Y—GENERAL 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T83/00—Cutting
- Y10T83/768—Rotatable disc tool pair or tool and carrier
- Y10T83/7809—Tool pair comprises rotatable tools
Definitions
- the invention relates to a circular saw for dividing logs, models or squared timbers provided with machined parallel side surfaces, with at least one circular saw blade attached to a saw shaft.
- Logs, models or squares are cut into planks, boards or squares by means of one or more circular saw blades arranged on a saw shaft.
- the wood is guided by the associated transport and feed device and / or by separate guide elements.
- the guiding accuracy not only influences the dimensional accuracy of the wooden workpieces produced, but also affects the possible side forces exerted by the wood on the circular saw blades. The lower the lateral forces to be expected, the thinner the circular saw blades can be made, which in turn means narrower sawing joints and thus less material loss due to sawdust.
- the object of the invention is therefore to design a circular saw of the type mentioned at the outset in such a way that the most precise possible wood guidance in the sawing area is achieved with little design effort.
- This object is achieved in that a support disc is arranged at an axial distance from the circular saw blade on the saw shaft, which has on its end face facing the circular saw blade a support surface for the side surface of the log, models or squared timber.
- This support surface is arranged in the immediate vicinity of the circular saw blade and therefore results in a high level of guidance accuracy.
- the design effort is low because, apart from the support disk, no separate guide elements have to be provided.
- the axial forces occurring at the support disc are absorbed directly by the saw shaft. The guidance of the wood starts shortly after the start of the saw cut and remains until the saw cut is finished.
- the support disks can be firmly attached to the saw shaft so that they rotate at the speed of the saw shaft.
- the support disks are each freely rotatable on the saw shaft via a support bearing. The support disks then move at a peripheral speed corresponding to the feed rate of the wood, so that the frictional forces reach a minimum.
- the support disc has a support ring projecting axially to the wooden surface to be supported, the diameter of which is approximately equal to the outer diameter of the circular saw blade.
- the lateral support is provided on the diameter on which the saw teeth also engage, ie at the point at which the side board which has been sawn off immediately thereafter is still connected to the main goods. Since preferably the same Support discs are arranged on both opposite sides of the log, the log is supported and guided between these two support discs at the point where the saw cuts begin. As a result, relatively high lateral managers can be applied from both sides without the risk that a saw gap which has already been produced between the boards, planks or squared timber is compressed.
- two opposing support disks can either be arranged on a common saw shaft on either side of the circular saw blade or a group of circular saw blades arranged next to one another at a distance, or a support disk can be attached to the hub of opposing circular saw heads.
- a particularly advantageous embodiment of the invention consists in that the support disk carrying the support ring is designed as a thin, elastically deformable disk in the axial direction.
- This resilient support disc can deflect laterally by a certain amount in order to compensate for dimensional deviations in the width of the log and / or to facilitate the occurrence of the start of the stack between the opposite support discs. In this way, the requirements for the processing accuracy of the log and for the guiding accuracy of the devices feeding the log are reduced. In addition, overstressing of the support disc by • sudden loads from the start of the trunk is avoided.
- FIG. 1 shows a section of a saw shaft of a circular saw for dividing logs, models or squared timbers, the support disks being firmly attached to the saw shaft,
- FIG. 2 partially in section in a similar 'representation of FIG. 1, a circular saw with a freely rotatably mounted on the saw arbor supporting disks,
- FIG. 3 is a representation similar to FIG. 2, a modified embodiment with support disks with a support ring projecting to Holzsta m,
- FIG. 4 in a partial section similar to FIG. 3, an embodiment with axially movable circular saws and support disks,
- FIG. 5 is a reduced plan view of the arrangement of FIG. 4,
- Fig. 7 shows a section corresponding to FIG. 4 with a resilient support disc.
- the saw shaft 1 shown in FIG. 1 belongs to a circular saw with which Ilolz trunks, models or squares provided with milled edges are cut by longitudinal cuts in planks, boards or squares.
- the wood is fed to the circular saw by a (not shown) Feed device, for example a driven chain bed.
- the wood 1 to be sawn has already machined side surfaces 3, for example surfaces produced by profile machining or sawn surfaces after the side goods have been sawed off, or milled edges.
- two circular saw blades 4 are arranged in parallel and at a distance, with which the supplied squared timber 2 is broken down into three planks or squared timbers 5.
- supporting disks 6 are accommodated on the saw shaft 1, the end faces of which facing the adjacent circular saw blade 4 each form a supporting surface 7.
- the machined side surfaces 3 of the wood 2 rest on the support surfaces 7.
- the support surfaces 7 support and thus guide the wood in the sawing area.
- An interchangeable spacer sleeve 8 is arranged on the saw shaft 1 between each support disk 6 and the adjacent circular saw blade 4 and between the two circular saw blades 4.
- the assembly consisting of the circular saw blades 4, the spacer sleeves 8 and the support disks 6 is fastened on the saw shaft 1 by a clamping nut 9.
- the torque is transmitted by a feather key (not shown).
- the embodiment shown in Fig. 2 differs from the embodiment of Fig. 1 in that the machined side surfaces 3 of the wood 2 supporting and guiding support surfaces 7 are formed on freely rotatably mounted annular support disks 16.
- the two support disks 16 are each freely rotatably supported on the saw shaft 1 via a support bearing 11 designed as a roller bearing, for example a deep groove ball bearing.
- the inner bearing ring of each support bearing 11 is fastened by means of a clamping nut 12 to an inner bearing sleeve 13 which is interchangeably received on the saw shaft 1 in a non-rotatable manner.
- FIG. 1 shows, for example, the end of a cantilevered saw shaft 1.
- the embodiment according to FIG. 3 differs from the embodiment according to FIG. 2 only in that the machined side surfaces 3 of the wood 2 supporting and guiding support surfaces 7 are formed on support rings 15, each of which has a relatively narrow support disc 16 axially to it project to the supporting wooden surface 3.
- the diameter of the support rings 15 is approximately equal to the diameter of the circular saw blades 4.
- the wood 2 is therefore supported by the two opposite support rings 15 approximately in the area in which the cuts produced by the circular saw blades 4 begin.
- the support disks 16 are mounted on the saw shaft 1 in a freely rotatable manner.
- the embodiment shown in FIG. 4 differs from the embodiment according to FIG.
- a support sleeve 101 which is axially displaceable on the saw shaft 1 is provided and is driven by a key 102 attached to the saw shaft 1 for rotary movement.
- the support sleeve 101 is supported at one end by a compression spring 103 on a shoulder 104 of the saw shaft 1. At its other end, the support sleeve 101 is axially supported by a compression spring 105 on nuts 106 attached to the saw shaft 1.
- a nut 107 is screwed, on which the bearing inner ring of the one support bearing 11 is supported via an intermediate ring 108.
- the spacer sleeves 8 and the circular saw blades 4 alternate.
- the other support bearing 11 is connected at the other end, which is also held by an nut 110 via an intermediate ring 109, which is braced against the nut 107 at the other end of the support sleeve 101.
- Fig. 5 shows the supply of a curved log or squared timber 2 1 to a circular saw arrangement according to Fig. 4.
- the support sleeve 101 with the circular saw blades 4 arranged thereon and the support disks 10 in this case perform a lateral displacement movement about the in Fig. 5 drawn dimension S from.
- the support disks 16 and thus also the circular saw blades 4 follow the curved course of the wood 2 1 and cut consistently thick planks or beams despite a straight supply of the wood 2 '.
- the straight supply of wood 2 1 can, for. B. in a known manner by means of chain beds onto which the wood is pressed laterally immovably.
- the outer diameter of the support rings 15 is selected to be somewhat larger than the outer diameter of the circular saw blades 4. It is thereby achieved that the lateral centering of the support disks 16 with respect to 2 or 2 1 takes place immediately before the circular saw blades 4 engage.
- the conical surface on the outer edge of the protective ring 15 is expediently chosen to be even larger than is shown in FIG. 4.
- FIGS. 1-5 using the example of a squared timber 2, instead models can be machined that have a machined side surface at least on the two opposite sides, or logs on which two longitudinal edges are milled that form the machined faces.
- the two circular saw heads 17 and 17 'shown in FIG. 6 serve to saw off two side boards 19 and 20 from a log 10 on two opposite sides.
- the log has previously been flattened on, for example, the two opposite sides or on all four sides; Two edges 21 were cut out between two adjacent side surfaces.
- two corresponding circular saw heads are also arranged one above the other and offset in the longitudinal direction of the wooden log 18.
- Each circular saw head 17 or 17 1 carries on its saw shaft 1 zv / ei spaced circular saw blades 22 and 23 of the same diameter.
- the two circular saw blades 22 and 23 are designed in the shape of a circular ring or in the form of a segment of a circle and are each fastened to a support disk 24 or 25, which are jointly attached to a hub ring 26.
- the hub ring 26 forms part of a hub 27 fastened to the saw shaft.
- a support disk 29 is freely rotatably supported via a support bearing 28, for example a deep groove ball bearing, from the circumference of which the support ring 15 projects axially in the direction of the log 10 in the manner already described.
- a support bearing 28 for example a deep groove ball bearing
- the outer edge 30 and inner edge 31 of the support ring 15 are bevelled, to facilitate the entry of the timber between the support rings 15.
- the embodiment according to FIG. 7 differs from the example according to FIG. 6 only in that the support disk 29 'carrying the support ring 15 is designed here as a very thin disk resilient in the axial direction in the manner of a circular saw blade.
- the support disk 29 ' has an inner fastening ring 32 which sits on the outer ring of the support bearing 28.
- the axially resilient arrangement of the support ring 15 and the bevelling of the outer edge 30 and the inner edge 31 ensures that a log that has been pre-machined with dimensional deviations in terms of its width and / or with a certain lateral displacement between the opposite support rings 15 is centered. This centering of the log takes place simultaneously with the beginning of the saw cut of the circular saw blades 22 and 23. Since the saw teeth also have cutters on both sides, a slight lateral displacement of the log under the guiding effect of the support rings 15 is possible immediately at the start of the saw cut, without that impermissibly high lateral forces are exerted on the circular saw blades 22 and 23.
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT88904939T ATE77579T1 (de) | 1987-05-09 | 1988-04-22 | Kreissaege. |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3715553 | 1987-05-09 | ||
DE3715553 | 1987-05-09 | ||
DE19873730154 DE3730154C1 (en) | 1987-09-09 | 1987-09-09 | Circular saw |
DE3730154 | 1987-09-09 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0394242A1 true EP0394242A1 (de) | 1990-10-31 |
EP0394242B1 EP0394242B1 (de) | 1992-06-24 |
Family
ID=25855401
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19880904939 Expired - Lifetime EP0394242B1 (de) | 1987-05-09 | 1988-04-22 | Kreissäge |
Country Status (5)
Country | Link |
---|---|
US (1) | US5123319A (de) |
EP (1) | EP0394242B1 (de) |
CA (1) | CA1315647C (de) |
FI (1) | FI96190C (de) |
WO (1) | WO1988008778A1 (de) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SK280288B6 (sk) * | 1994-07-06 | 1999-11-08 | Wep Trading | Zariadenie na pozdĺžne spracovanie drevnej hmoty |
DE19540349A1 (de) * | 1995-10-28 | 1997-04-30 | Bayerische Motoren Werke Ag | Vorrichtung zur elektronischen Zündsteuerung bei Brennkraftmaschinen in Kraftfahrzeugen |
US5761979A (en) * | 1996-03-07 | 1998-06-09 | Mcgehee; Ronald W. | Edge trimming and board ripping apparatus and method |
CN102152340B (zh) * | 2011-01-07 | 2013-05-08 | 周富海 | 一体化多树种圆木多片纵解机 |
RU185291U1 (ru) * | 2018-06-14 | 2018-11-29 | Владимир Евгеньевич Кривилев | Одновальный круглопильный станок |
RU193141U1 (ru) * | 2019-06-28 | 2019-10-15 | Федеральное государственное бюджетное учреждение "Научно-исследовательский институт строительной физики Российской академии архитектуры и строительных наук" (НИИСФ РААСН) | Инструмент для вырезания фигурных выемок на поверхности бревна |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1881020A (en) * | 1930-09-10 | 1932-10-04 | Western Electric Co | Material slitting device |
US2569878A (en) * | 1948-06-04 | 1951-10-02 | Ernest C Avinger | Machine for cutting logs into sections |
DE1453332C3 (de) * | 1961-04-05 | 1974-06-06 | Vyzkumny A Vyvojovy Ustav Drevarsky, Prag | Verfahren zum Längsschneiden von Holzklötzen bzw. Prismen |
DE1915611A1 (de) * | 1969-03-27 | 1970-10-08 | Union Verpackungs Gmbh | Vorrichtung an Schneideinrichtungen fuer Verpackungsmaschinen |
DE2918622C2 (de) * | 1979-05-09 | 1981-11-19 | Gebrüder Linck Maschinenfabrik und Eisengießerei Gatterlinck, 7602 Oberkirch | Verfahren und Vorrichtung zur spanenden Zerlegung von Baumstämmen in allseitig bearbeitete Holzerzeugnisse |
SE438281B (sv) * | 1980-03-26 | 1985-04-15 | Kockums Ind Ab | Anordning vid centrering av en virkesbit |
US4572256A (en) * | 1983-11-14 | 1986-02-25 | Kauko Rautio | Saw machine |
DE3415932A1 (de) * | 1984-04-28 | 1985-11-07 | Gebrüder Linck Maschinenfabrik und Eisengießerei "Gatterlinck", 7602 Oberkirch | Vorrichtung zur spanenden bearbeitung der seiten von holzstaemmen |
DE3415931A1 (de) * | 1984-04-28 | 1985-11-07 | Gebrüder Linck Maschinenfabrik und Eisengießerei "Gatterlinck", 7602 Oberkirch | Saege- und zerspanungseinrichtung fuer holzstaemme |
DE3644503C1 (en) * | 1986-12-24 | 1988-01-07 | Linck Masch Gatterlinck | Circular-saw head |
-
1988
- 1988-04-22 US US07/455,352 patent/US5123319A/en not_active Expired - Fee Related
- 1988-04-22 EP EP19880904939 patent/EP0394242B1/de not_active Expired - Lifetime
- 1988-04-22 WO PCT/EP1988/000338 patent/WO1988008778A1/de active IP Right Grant
- 1988-05-06 CA CA 566143 patent/CA1315647C/en not_active Expired - Fee Related
-
1989
- 1989-11-07 FI FI895278A patent/FI96190C/fi not_active IP Right Cessation
Non-Patent Citations (1)
Title |
---|
See references of WO8808778A1 * |
Also Published As
Publication number | Publication date |
---|---|
WO1988008778A1 (en) | 1988-11-17 |
FI96190B (fi) | 1996-02-15 |
CA1315647C (en) | 1993-04-06 |
FI895278A0 (fi) | 1989-11-07 |
FI96190C (fi) | 1996-05-27 |
US5123319A (en) | 1992-06-23 |
EP0394242B1 (de) | 1992-06-24 |
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