CA1260808A - Circular-saw head for sawing off side boards - Google Patents
Circular-saw head for sawing off side boardsInfo
- Publication number
- CA1260808A CA1260808A CA000503666A CA503666A CA1260808A CA 1260808 A CA1260808 A CA 1260808A CA 000503666 A CA000503666 A CA 000503666A CA 503666 A CA503666 A CA 503666A CA 1260808 A CA1260808 A CA 1260808A
- Authority
- CA
- Canada
- Prior art keywords
- circular
- saw
- locking ring
- saw blade
- mounting flange
- 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
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
- 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
-
- 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
- B27B5/32—Devices for securing circular saw blades to the saw spindle
-
- 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
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Wood Science & Technology (AREA)
- Forests & Forestry (AREA)
- Sawing (AREA)
Abstract
Abstract/
A Circular-saw Head for Sawing Off Side Boards/
A circular-saw head (5) for sawing off side boards from logs has a circular-saw blade (6) secured to a mounting flange (10) by countersunk locking screws (8), said mounting flange being secured to a saw shaft (14). Between the saw blade (6) and the mounting flange (10) there is a locking ring (9). This locking ring (9) has on its circumference milling cutters (18), of which the associated chip space (19a) extends in each instance into the area between two adjacent locking screws (8). The milling cutter (18) protrudes laterally beyond the locking ring (8) into an opening (20) in the circular-saw blade (6). The milling cutters (18) mill the long edges of the side boards of the log separated by the circular-saw blade (6).
A Circular-saw Head for Sawing Off Side Boards/
A circular-saw head (5) for sawing off side boards from logs has a circular-saw blade (6) secured to a mounting flange (10) by countersunk locking screws (8), said mounting flange being secured to a saw shaft (14). Between the saw blade (6) and the mounting flange (10) there is a locking ring (9). This locking ring (9) has on its circumference milling cutters (18), of which the associated chip space (19a) extends in each instance into the area between two adjacent locking screws (8). The milling cutter (18) protrudes laterally beyond the locking ring (8) into an opening (20) in the circular-saw blade (6). The milling cutters (18) mill the long edges of the side boards of the log separated by the circular-saw blade (6).
Description
iO~
The present invention relates to a circular-saw head for sawing off side boards from logs~
When processing logs to produce boards, planks, beams, studs, and the like, side boards can be cut from the side material that is produced by saw cuts off the main piece. Insofar as the trunk is not surfaced on both sides by a shaping/milling process, slabs will be separated in addition to side boards when these cuts are made.
In order to avoid subsequent edging work on the side boards lt is known that prior to cutting, the wanes that are adjacent to the side boards can be milled to a right-angle, after the sides of the trunk have been blocked. In a known circular-saw head used for this purpose (DE-PS 31 21 130) the outermost circular-saw blade is locked against a locking ring by lock screws that protrude through holes in the locking ring and serve to secure the blade to a mounting flange. During the sawing process, the locking ring protrudes into the area of the previously milled-out edge.
It is the task of the present invention to create a circular-saw head of the type described in the introduction hereto, in which, even in the case of irregularly shaped logs, there is no danger that the edges of the side boards collide with the locking ring of the circular-saw head and with which it is possible to produce side boards with milled long edges without the need for prior milling of 1he edges, so that no subsequent edging work is required.
B
()8()8 The invention provides a circular-saw head for sawing side boards from loys, said head having a mounting Elange that is mounted on a saw shaft, at least one circular-saw blade with at least one interposed locking ring being secured to the mounting flange by locking screws, characterized in that the locking ring has on its circumference milling cutters, the chip spaces of which extend in each instance into the area between two adjacent locking screws.
The milling cutters that are formed on the locking ring mill the edges of the side boards as the latter are being sawn of~. Even though the locking screws that are distributed about its circumference pass through the locking ring, it is pos-sible to configure fully functional milling cutters since the necessary relatively large chip space is disposed in the area be-tween two adjacent locking screws.
According to a particularly advantageous version of the present invention it is foreseen that the milling cutters pro-trude laterally through the locking ring and extend into a cut-out in the circular-saw blade. This ensures that there is no gap for chips and splinters to jam in between the milling cutters and the adjacent circular-saw blade.
It is particularly advantageous to configure the cut-outs, into which the milling cutters protrude, as holes in the circular-saw blade. This simplifies production and improves removal of the chips.
The invention is described below on the basis of `: ~
exemplary embodiments that are shown in -the drawings appended hereto, wherein:-Figure 1 is a simplified side view of -two circular-saw heads arranged one above the other, for sawing side boards off logs that are fed in as blocks;
Figure 2 is a cross-section taken on the line II-II in Figure 1, during passage of the log;
Figure 3 is a view as in Figure 2, showing the operat-ing process on an unblocked round log, using circular-saw heads having two blades in each instance;
Figure 4 is an enlarged cross-section through one of the circular-saw heads as used in Figures 1 and 2;
Figure 5 is a cross-section taken on the line IV-IV
in Figure 4; and Figure 6 is a cross-section as in Figure 4, through a circular-saw head as in Figure 3.
A log 1 which, in the embodiment shown in Figures 1 and 2, has been blocked by the side flats 2, is moved by a con-veyor 3, for example, a chain-bed conveyor system (not shown here-in) in the di:rection indicated by the arrow 4 into a processing plant; only two circular-saw heads 5 (that are part of this plant and are arranged one above the other), are shown in Figures 1 and
The present invention relates to a circular-saw head for sawing off side boards from logs~
When processing logs to produce boards, planks, beams, studs, and the like, side boards can be cut from the side material that is produced by saw cuts off the main piece. Insofar as the trunk is not surfaced on both sides by a shaping/milling process, slabs will be separated in addition to side boards when these cuts are made.
In order to avoid subsequent edging work on the side boards lt is known that prior to cutting, the wanes that are adjacent to the side boards can be milled to a right-angle, after the sides of the trunk have been blocked. In a known circular-saw head used for this purpose (DE-PS 31 21 130) the outermost circular-saw blade is locked against a locking ring by lock screws that protrude through holes in the locking ring and serve to secure the blade to a mounting flange. During the sawing process, the locking ring protrudes into the area of the previously milled-out edge.
It is the task of the present invention to create a circular-saw head of the type described in the introduction hereto, in which, even in the case of irregularly shaped logs, there is no danger that the edges of the side boards collide with the locking ring of the circular-saw head and with which it is possible to produce side boards with milled long edges without the need for prior milling of 1he edges, so that no subsequent edging work is required.
B
()8()8 The invention provides a circular-saw head for sawing side boards from loys, said head having a mounting Elange that is mounted on a saw shaft, at least one circular-saw blade with at least one interposed locking ring being secured to the mounting flange by locking screws, characterized in that the locking ring has on its circumference milling cutters, the chip spaces of which extend in each instance into the area between two adjacent locking screws.
The milling cutters that are formed on the locking ring mill the edges of the side boards as the latter are being sawn of~. Even though the locking screws that are distributed about its circumference pass through the locking ring, it is pos-sible to configure fully functional milling cutters since the necessary relatively large chip space is disposed in the area be-tween two adjacent locking screws.
According to a particularly advantageous version of the present invention it is foreseen that the milling cutters pro-trude laterally through the locking ring and extend into a cut-out in the circular-saw blade. This ensures that there is no gap for chips and splinters to jam in between the milling cutters and the adjacent circular-saw blade.
It is particularly advantageous to configure the cut-outs, into which the milling cutters protrude, as holes in the circular-saw blade. This simplifies production and improves removal of the chips.
The invention is described below on the basis of `: ~
exemplary embodiments that are shown in -the drawings appended hereto, wherein:-Figure 1 is a simplified side view of -two circular-saw heads arranged one above the other, for sawing side boards off logs that are fed in as blocks;
Figure 2 is a cross-section taken on the line II-II in Figure 1, during passage of the log;
Figure 3 is a view as in Figure 2, showing the operat-ing process on an unblocked round log, using circular-saw heads having two blades in each instance;
Figure 4 is an enlarged cross-section through one of the circular-saw heads as used in Figures 1 and 2;
Figure 5 is a cross-section taken on the line IV-IV
in Figure 4; and Figure 6 is a cross-section as in Figure 4, through a circular-saw head as in Figure 3.
A log 1 which, in the embodiment shown in Figures 1 and 2, has been blocked by the side flats 2, is moved by a con-veyor 3, for example, a chain-bed conveyor system (not shown here-in) in the di:rection indicated by the arrow 4 into a processing plant; only two circular-saw heads 5 (that are part of this plant and are arranged one above the other), are shown in Figures 1 and
2. It is understood that two additional circular-saw heads 5 (not shown herein) will be provided for processing the opposite side of the log 1.
Each circular-saw head 5, the details of which are : B - 3 -.
~ ' ';
l~tioa()~
shown in Figures 4 and 5, has a circular-saw blade 6 that has a thickened mounting flange 7 (Figure 4) around its centre. Locking screws 8 with countersunk heads secure the mounting Elange 7 against a ring 9 and a mounting flange 10, that is part of a sleeve 11. The sleeve 11 is coaxial with a cylindrical section 12 of a mounting flange 13 that is installed on a saw shaft 14.
A threaded spigot 15 bears a nut 16 that tightens the sleeve 11 against the mounting flange 13 through a washer 17.
On its circumference the ring 9 has two milling cutters 18 which a.re in each instance formed by a cutter plate that is soldered or otherwise secured. In front of each milling cutter 18 there is a chip space l9a that extends in each instance into the area between two ad~acent locking screws 8.
On their sides that are closest to the circular-saw blade 6 the milling cutters 18 ex-tend axially beyond the locking ring 9 so that in each instance they extend into an opening 20 in the circular-saw blade 6.
When the log 1 passes, the circular-saw blades 6 cut off a side board 21, the long edges of whic:h are simultaneously milled by the milling cutters 18.
The embodiment shown in Figures 3 and 6 differs from that described above in that a round log 1' that has not been blocked by side flats is processed. In order:to separate a slab 22 that is outside the side board 21, an additional circular-saw blade 6' has been arranged spaced from the circular-saw blade 6. The locking ring 9 with the milling cutters 18 is arranged between .
()8 these two circular-saw blades 6 and 6'. Its milling cutters 18 then protrude on the inside beyond t.he locking ring 9 and into an opening 20' in the circular-saw blade 6'.
Between the innermost circular-saw blade 6' and the mounting flange 10 there is an additional locking ring 9', the milling cutters 18' of which protrude in a similar manner into the opening 20' of the circular-saw blade 6'. For the remainder, the locking ring 9' is made up in the same way as the locking ring 9.
Whereas, as has been described, the milling cutters 18 of the lockiny ring 9 serve either to prevent a collision of the side-board edges with the locking ring 9, or to produce a side board with milled long edges, the milling cutters 18' of the locking ring 9' serve to mill those sections of the long edges of the slab 22 that project into the area of the locking ring 9 and which would collide with it during passage of the trunk 1'.
A circular-saw head with a plurality of circular-saws and a pLurality of locking rings 9 or 9' can be used to cut a log into several boards.
The version of -the locking ring 9' with milling cutters 18 that protrude further on one side makes it possible to manage with only two types of locking rings for all four circular-saw heads of a sawmill.
... .
,: :
.
'' , , ~ ; ' . .
Each circular-saw head 5, the details of which are : B - 3 -.
~ ' ';
l~tioa()~
shown in Figures 4 and 5, has a circular-saw blade 6 that has a thickened mounting flange 7 (Figure 4) around its centre. Locking screws 8 with countersunk heads secure the mounting Elange 7 against a ring 9 and a mounting flange 10, that is part of a sleeve 11. The sleeve 11 is coaxial with a cylindrical section 12 of a mounting flange 13 that is installed on a saw shaft 14.
A threaded spigot 15 bears a nut 16 that tightens the sleeve 11 against the mounting flange 13 through a washer 17.
On its circumference the ring 9 has two milling cutters 18 which a.re in each instance formed by a cutter plate that is soldered or otherwise secured. In front of each milling cutter 18 there is a chip space l9a that extends in each instance into the area between two ad~acent locking screws 8.
On their sides that are closest to the circular-saw blade 6 the milling cutters 18 ex-tend axially beyond the locking ring 9 so that in each instance they extend into an opening 20 in the circular-saw blade 6.
When the log 1 passes, the circular-saw blades 6 cut off a side board 21, the long edges of whic:h are simultaneously milled by the milling cutters 18.
The embodiment shown in Figures 3 and 6 differs from that described above in that a round log 1' that has not been blocked by side flats is processed. In order:to separate a slab 22 that is outside the side board 21, an additional circular-saw blade 6' has been arranged spaced from the circular-saw blade 6. The locking ring 9 with the milling cutters 18 is arranged between .
()8 these two circular-saw blades 6 and 6'. Its milling cutters 18 then protrude on the inside beyond t.he locking ring 9 and into an opening 20' in the circular-saw blade 6'.
Between the innermost circular-saw blade 6' and the mounting flange 10 there is an additional locking ring 9', the milling cutters 18' of which protrude in a similar manner into the opening 20' of the circular-saw blade 6'. For the remainder, the locking ring 9' is made up in the same way as the locking ring 9.
Whereas, as has been described, the milling cutters 18 of the lockiny ring 9 serve either to prevent a collision of the side-board edges with the locking ring 9, or to produce a side board with milled long edges, the milling cutters 18' of the locking ring 9' serve to mill those sections of the long edges of the slab 22 that project into the area of the locking ring 9 and which would collide with it during passage of the trunk 1'.
A circular-saw head with a plurality of circular-saws and a pLurality of locking rings 9 or 9' can be used to cut a log into several boards.
The version of -the locking ring 9' with milling cutters 18 that protrude further on one side makes it possible to manage with only two types of locking rings for all four circular-saw heads of a sawmill.
... .
,: :
.
'' , , ~ ; ' . .
Claims (5)
PROPERTY OR PRIVILEGE IS CLAIMED ARE DEFINED AS FOLLOWS:
1. A circular-saw head for sawing side boards from logs, said head having a mounting flange that is mounted on a saw shaft, at least one circular-saw blade with at least one interposed locking ring being secured to the mounting flange by locking screws, characterized in that the locking ring has on its circumference milling cutters, the chip spaces of which extend in each instance into the area between two adjacent locking screws.
2. A circular-saw head as in claim 1, characterized in that the milling cutter extends laterally beyond the locking ring and into a cut-out in the saw blade.
3. A circular-saw head as in claim 1, characterized in that the milling cutter extends laterally into an opening in the circular-saw blade.
4. A circular-saw head as in claim 2, characterized in that the milling cutter extends laterally beyond the locking ring further on one side than on the other side.
5. A circular-saw head as in claim 1, with two circular-saw blades that are arranged with their axes from each other, characterized in that each circular-saw blade has on its side that is closest to the associated mounting flange an associated locking ring that has milling cutters on its circumference.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19853508716 DE3508716C1 (en) | 1985-03-12 | 1985-03-12 | Circular saw head for sawing off side boards |
| DEP35,08,716-15 | 1985-03-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1260808A true CA1260808A (en) | 1989-09-26 |
Family
ID=6264907
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000503666A Expired CA1260808A (en) | 1985-03-12 | 1986-03-10 | Circular-saw head for sawing off side boards |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP0213196A1 (en) |
| CA (1) | CA1260808A (en) |
| DE (1) | DE3508716C1 (en) |
| WO (1) | WO1986005433A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5303754A (en) * | 1991-11-18 | 1994-04-19 | Kauko Rautio | Fastening system for a rip-saw blade and a chipping edger |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3644503C1 (en) * | 1986-12-24 | 1988-01-07 | Linck Masch Gatterlinck | Circular-saw head |
| DE3778709D1 (en) * | 1986-12-24 | 1992-06-04 | Linck Masch Gatterlinck | CIRCULAR SAW HEAD. |
| FR2688160B1 (en) * | 1992-03-06 | 1995-06-16 | Guilliet Sa Ets | MACHINING DEVICE FOR A WOOD WORKING MACHINE AND MACHINE COMPRISING SUCH A DEVICE. |
| DE4407379C2 (en) * | 1994-03-05 | 1999-08-19 | Esterer Ag Maschf | Sawing machine |
| DE19547193C2 (en) * | 1995-12-16 | 1999-01-28 | Linck Masch Gatterlinck | Method and device for cutting a tree trunk |
| SE521638C2 (en) * | 2001-04-23 | 2003-11-18 | Globe Invent Ab | Method for processing an object, machine and tool unit for performing the method |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE686372C (en) * | 1938-03-25 | 1940-01-08 | Anton Stange | Device for dividing whales |
| US3027106A (en) * | 1959-02-19 | 1962-03-27 | Hoe & Co R | Rotary saw break-up head |
| CH475830A (en) * | 1967-11-13 | 1969-07-31 | Hans Amacher Fa | Machine for processing plastic sheets |
| US4248280A (en) * | 1978-12-07 | 1981-02-03 | Taylor Keith A | Method and machine structure for finger jointing of lumber |
| DE2918622C2 (en) * | 1979-05-09 | 1981-11-19 | Gebrüder Linck Maschinenfabrik und Eisengießerei Gatterlinck, 7602 Oberkirch | Method and device for cutting tree trunks into wood products that are processed on all sides |
| GB2061817B (en) * | 1979-10-25 | 1982-12-01 | Supreme Saw Works Ltd | Circular saw assembly |
| DE3121130C2 (en) * | 1981-05-27 | 1983-09-29 | Gebrüder Linck Maschinenfabrik und Eisengießerei "Gatterlinck", 7602 Oberkirch | Circular saw head for sawing off side boards |
-
1985
- 1985-03-12 DE DE19853508716 patent/DE3508716C1/en not_active Expired
-
1986
- 1986-03-08 EP EP19860901853 patent/EP0213196A1/en not_active Withdrawn
- 1986-03-08 WO PCT/EP1986/000125 patent/WO1986005433A1/en unknown
- 1986-03-10 CA CA000503666A patent/CA1260808A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5303754A (en) * | 1991-11-18 | 1994-04-19 | Kauko Rautio | Fastening system for a rip-saw blade and a chipping edger |
Also Published As
| Publication number | Publication date |
|---|---|
| DE3508716C1 (en) | 1986-02-06 |
| WO1986005433A1 (en) | 1986-09-25 |
| EP0213196A1 (en) | 1987-03-11 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |