CA2137091A1 - Log processing apparatus - Google Patents
Log processing apparatusInfo
- Publication number
- CA2137091A1 CA2137091A1 CA002137091A CA2137091A CA2137091A1 CA 2137091 A1 CA2137091 A1 CA 2137091A1 CA 002137091 A CA002137091 A CA 002137091A CA 2137091 A CA2137091 A CA 2137091A CA 2137091 A1 CA2137091 A1 CA 2137091A1
- Authority
- CA
- Canada
- Prior art keywords
- log
- cutter head
- opposed
- processing apparatus
- head means
- 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.)
- Abandoned
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
- B27B1/00—Methods for subdividing trunks or logs essentially involving sawing
-
- 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
- B27B3/00—Gang saw mills; Other sawing machines with reciprocating saw blades, specially designed for length sawing of trunks
- B27B3/28—Components
- B27B3/36—Devices for adjusting the mutual distance of the saw blades
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27L—REMOVING BARK OR VESTIGES OF BRANCHES; SPLITTING WOOD; MANUFACTURE OF VENEER, WOODEN STICKS, WOOD SHAVINGS, WOOD FIBRES OR WOOD POWDER
- B27L1/00—Debarking or removing vestiges of branches from trees or logs; Machines therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27L—REMOVING BARK OR VESTIGES OF BRANCHES; SPLITTING WOOD; MANUFACTURE OF VENEER, WOODEN STICKS, WOOD SHAVINGS, WOOD FIBRES OR WOOD POWDER
- B27L11/00—Manufacture of wood shavings, chips, powder, or the like; Tools therefor
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Forests & Forestry (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Dovetailed Work, And Nailing Machines And Stapling Machines For Wood (AREA)
Abstract
When processing round logs to form square or profiled lumber, a serious problem is the adjusting of the spacing between cutter heads to accommodate logs of different diameters. A simple apparatus for solving the problem includes opposed wheels for feeding a log longitudinally through the apparatus, a first saw for cutting a groove in the log which receives a guide bar for preventing rotation of the log during passage through the apparatus, two pairs of opposed cutter heads for squaring opposed sides of the log, the cutter heads incorporating fully enclosed drives for simultaneously adjusting the spacing between opposed cutter heads for accommodating logs of different diameters, guide bars connected to the cutter heads for engaging the log downstream of the cutter heads in the direction of log travel for guiding the log through the remainder of the apparatus, and either profiling heads for profiling a squared log or saws for cutting the squared log into boards.
Description
This invention relates to an apparatus for processing logs to produce finished lumber.
More specifically, the invention relates to an apparatus which can be used to square and cant even small diameter logs uniformly.
Machines for processing lumber have long been available. In this connection, reference is made to United States Patent No. 3,934,630, which issued to Roy R. Cockle on January 27, 1976t and to the patents listed on the cover page of the Cockle patent. Reference is also made to Canadian Patents Nos. 698,960, issued to Franz Warmbrunn on December 1, 1964 and 965,686, issued to Charles L. Fell on April 8, 1975, and United States Patent No. 4,078,460, which issued to John H. Bowman on March 14, 1978, which describe other examples of log processing machines.
A problem common to existing machines is that of adjusting the distances between cutter heads and log guides for accommodating a variety of sizes and shapes. It must be possible to change the spacing between cutters quickly in order to process the different logs usually fed into a machine or apparatus of the type in question. The Cockle patent proposes a complicated system of levers, beams, brackets and arms for manually adjusting the spacing between cutter heads and log guides. All of the cutter heads must be adjusted separately, even though the Cockle patent mentions the possibility of adjusting opposed cutter heads and guides using a single lever. Even with the proposed lever system, the problem of adjusting cutter heads and guides can be especially i~
difficult after a short period of operation, because fine sawdust enters every cavity in the machine including the areas between overlapping surfaces of the lever system.
Consequently, the force required to pivot the levers to adjust the head and guide rail spacings increases significantly.
Accurate adjustment becomes increasingly difficult, and accordingly the machine is adapted to cut rough lumber only.
An object of the present invention is to provide a solution to the problem outlined above in the form of an apparatus which is relatively simple in terms of structure, and which permits quick and uniform adjustment of log guides and cutters.
Another object of the invention is to provide a log processing apparatus which, because of the capability of fine cutter adjustments, can be used for the quality finishing of lumber, and which can square and profile logs.
Accordingly, the present invention relates to a log finishing apparatus comprising feed means for feeding a log longitudinally through the apparatus; first guide means for engaging the log and preventing rotation of the log around its longitudinal axis during feeding of the log through the apparatus; first opposed cutter head means for squaring first opposed sides of the log; second opposed cutter head means for squaring second opposed sides of the log perpendicular to said first opposed sides, whereby the log is completely squared along its length after passing between said second cutter head means; first telescopic sleeve means carrying said first cutter head means for changing the spacing between said first cutter head means; second telescopic sleeve means carrying said second cutter head means for changing the spacing between said second cutter head means; drive means for simultaneously operating opposed cutter head means and for adjusting the spacing between said cutter head means; and second guide means downstream of said second cutter head means for guiding a squared log through the remainder of the apparatus.
The invention is described below in greater detail with reference to the accompanying drawings, which illustrate a preferred embodiment of the invention, and wherein:
Figure 1 is a schematic isometric view of a log processing apparatus in accordance with the present invention;
Figure lA is a schematic isometric view of a variation of the apparatus of Fig. l;
Figure 2 is a schematic side view of a drive system for the various elements of the apparatus of Fig. l;
Figure 3 is a longitudinal sectional view of a cutter head and log guide for use in the apparatus of Figs. 1 and 2;
Figure 4 is a side view of a profiling head used in the apparatus of Figs. 1 and 2;
Figure 5 is an end view of the profiling head of Fig. 4;
Figure 6 i-s a side view of a log cutting head used in the apparatus of Figs. 1 and 2; and Figure 7 is an end view of the cutting head of Fig. 6.
Referring to Fig. 1, the log processing apparatus in accordance with the invention includes a drive generally indicated at 1 for moving a log 2 longitudinally through the apparatus. The drive is defined by a pair of opposed, spaced apart wheels 3 rotating in opposite directions for engaging the top and bottom of the log 2 for pushing the latter forwardly. The wheels 3 are biased towards each other for ensuring positive gripping of the log 2. The wheels 3 are mounted on shafts 5 connected to a common driven shaft 6 (Fig.
More specifically, the invention relates to an apparatus which can be used to square and cant even small diameter logs uniformly.
Machines for processing lumber have long been available. In this connection, reference is made to United States Patent No. 3,934,630, which issued to Roy R. Cockle on January 27, 1976t and to the patents listed on the cover page of the Cockle patent. Reference is also made to Canadian Patents Nos. 698,960, issued to Franz Warmbrunn on December 1, 1964 and 965,686, issued to Charles L. Fell on April 8, 1975, and United States Patent No. 4,078,460, which issued to John H. Bowman on March 14, 1978, which describe other examples of log processing machines.
A problem common to existing machines is that of adjusting the distances between cutter heads and log guides for accommodating a variety of sizes and shapes. It must be possible to change the spacing between cutters quickly in order to process the different logs usually fed into a machine or apparatus of the type in question. The Cockle patent proposes a complicated system of levers, beams, brackets and arms for manually adjusting the spacing between cutter heads and log guides. All of the cutter heads must be adjusted separately, even though the Cockle patent mentions the possibility of adjusting opposed cutter heads and guides using a single lever. Even with the proposed lever system, the problem of adjusting cutter heads and guides can be especially i~
difficult after a short period of operation, because fine sawdust enters every cavity in the machine including the areas between overlapping surfaces of the lever system.
Consequently, the force required to pivot the levers to adjust the head and guide rail spacings increases significantly.
Accurate adjustment becomes increasingly difficult, and accordingly the machine is adapted to cut rough lumber only.
An object of the present invention is to provide a solution to the problem outlined above in the form of an apparatus which is relatively simple in terms of structure, and which permits quick and uniform adjustment of log guides and cutters.
Another object of the invention is to provide a log processing apparatus which, because of the capability of fine cutter adjustments, can be used for the quality finishing of lumber, and which can square and profile logs.
Accordingly, the present invention relates to a log finishing apparatus comprising feed means for feeding a log longitudinally through the apparatus; first guide means for engaging the log and preventing rotation of the log around its longitudinal axis during feeding of the log through the apparatus; first opposed cutter head means for squaring first opposed sides of the log; second opposed cutter head means for squaring second opposed sides of the log perpendicular to said first opposed sides, whereby the log is completely squared along its length after passing between said second cutter head means; first telescopic sleeve means carrying said first cutter head means for changing the spacing between said first cutter head means; second telescopic sleeve means carrying said second cutter head means for changing the spacing between said second cutter head means; drive means for simultaneously operating opposed cutter head means and for adjusting the spacing between said cutter head means; and second guide means downstream of said second cutter head means for guiding a squared log through the remainder of the apparatus.
The invention is described below in greater detail with reference to the accompanying drawings, which illustrate a preferred embodiment of the invention, and wherein:
Figure 1 is a schematic isometric view of a log processing apparatus in accordance with the present invention;
Figure lA is a schematic isometric view of a variation of the apparatus of Fig. l;
Figure 2 is a schematic side view of a drive system for the various elements of the apparatus of Fig. l;
Figure 3 is a longitudinal sectional view of a cutter head and log guide for use in the apparatus of Figs. 1 and 2;
Figure 4 is a side view of a profiling head used in the apparatus of Figs. 1 and 2;
Figure 5 is an end view of the profiling head of Fig. 4;
Figure 6 i-s a side view of a log cutting head used in the apparatus of Figs. 1 and 2; and Figure 7 is an end view of the cutting head of Fig. 6.
Referring to Fig. 1, the log processing apparatus in accordance with the invention includes a drive generally indicated at 1 for moving a log 2 longitudinally through the apparatus. The drive is defined by a pair of opposed, spaced apart wheels 3 rotating in opposite directions for engaging the top and bottom of the log 2 for pushing the latter forwardly. The wheels 3 are biased towards each other for ensuring positive gripping of the log 2. The wheels 3 are mounted on shafts 5 connected to a common driven shaft 6 (Fig.
2) by pulleys and belts (not shown). The shaft 6, which is mounted in bearings 8 is driven by the shaft 9 of a diesel engine 10. A clutch 12 is provided in the shaft 9. The shaft 6 is connected to the shaft 9 by pulleys 13 and 14, and a belt 15. As shown in Fig. 2, the shaft 9 drives a hydraulic pump -15 17, which is used to control the movement of various elements of the apparatus including the drive wheels 3. The wheels 3 are moved together or apart in unison by an endless chain 19 extending around sprockets 20 and 21. One of the sprockets 21 is connected to a hydraulic motor 22, which is connected to the pump 17 by a line 23 and a hydraulic distributor 24.
The shaft 6 and the engine 16 are also used to drive a variety of other elements of the apparatus including a grooving saw 26, which cuts a longitudinally extending groove 27 in the log 2 for receiving a fixed guide bar 28. The bar 28 remains in the groove 27 as the log is fed through the apparatus to ensure that the log does not rotate around its longitudinal axis. The saw 26 is connected to the shaft 6 by pulleys 27 and 28, and belts 29 (Fig. 2).
The thus stabilized log is fed to two pairs of opposed cutter heads generally indicated at 31 and 32. The first cutter heads 31 are adapted to square the top and bottom surfaces of the log 2, and the second cutter heads 32 are adapted to square the sides of the log. The cutter heads 31 and 32 are driven in unison by the shaft 6, which is connected to the cutter head shafts 33 by pulleys 35, 36 and 37, and belts 38 and 39.
In a preferred variation of the invention (Fig. lA), the grooving saw 26 and the guide bar 28 are mounted beneath the path of travel of the log 2. Moreover, the cutter heads 31 and 32 are reversed, i.e. the log 2 first passes between horizontal cutter heads 32, and then passes between vertical cutter heads 31. The grooving saw 26 and the guide bar 28 are mounted on a common bracket frame (not shown) connected to the bottom cutter head 31, so that the saw 26 and the bar 28 move in unison with the cutter heads towards and away from the log 2.
With reference to Fig. 3, each cutter head 31 or 32 includes a housing generally indicated at 40. The housing 40 is defined by telescopically interconnected outer and inner hubs or sleeves 41 and 42. An annular flange 44 extends outwardly from the bottom end of the outer sleeve 41 for receiving bolts 4S, which secure the sleeve 41 to the frame 46 of the apparatus. The flange 44 also defines a cover for a sprocket wheel 48. The sprocket wheel 48 is internally threaded for supporting the externally threaded, cylindrical side wall 50 of the inner sleeve 42. Each sprocket wheel 48 is connected by a chain 51 to a sprocket wheel 52 mounted on the shaft of a hydraulic motor 54 (one shown in Fig. 1). Each motor 54 is connected by a line 55 (Fig. 2) to a hydraulic distributor 56, which is connected to the pump 17 by a line 57.
By operating the motor 54, the inner sleeve 42 is caused to move longitudinally relative to the fixed outer sleeve 41 and a sleeve 59 extending outwardly from the side of the apparatus frame 46 opposite the inner housing. For such purpose a rectangular, longitudinally extending groove or keyway 60 is provided in the side wall 50 of the inner sleeve 42. A similar keyway (not shown) is provided in the interior of the outer sleeve 41, and a key 62 is mounted in the keyways. The top end of the outer sleeve 41 is closed by a cover 63, and the bottom end of the inner sleeve is closed by a cover 64. Bearings 65 (one shown) are provided in the covers 63 and 64 for rotatably supporting sections 67 and 68, respectively of the shaft 33. The shaft section 67 extends out of the top cover 63 of the housing 40. Three interconnected pulleys 36 are provided on the section 67 for the receiving belts 38 or 39 (Fig 2). The shaft sections 67 and 68 are interconnected by splines 71, which permit sliding movement but not relative rotation of the sections.
A cutter head 73 is mounted on the bottom free end of the shaft 33. The head 73 includes a hub 74 mounted on the shaft, and a plurality of inclined arms 75 extending radially outwardly from the hub 74. Each arm 75 carries blades 76, which are mounted on the arms 75 by bolts 78. A log guide 79 extends outwardly from the housing 40 for taking over from the guide bar 22. The log guide 79 is defined by a generally L-shaped arm 80, one end of which is sandwiched between the cover 64 and the inner sleeve 42. A plate 82 on the outer free end of the arm 80 bears against the adjacent squared side 83 of a log 2 downstream of the cutter head 31 or 32.
After passing the cutter heads 31 and 32, the log 2 either passes between a profiling head generally indicated at 85 tFigs. 2, 4 and 5) or through a circular saw 86 (Figs. 6 and 7, which cuts the squared log into boards. In either case, wood chips and sawdust created during processing are carried away by a fan 88 (Fig. 1). As in the case of the cutter heads 31 and 32, the profiling head 85 and the saw 86 are driven by the shaft 6. The drive for either element is connected to the shaft 6 by a pulley 89 and a belt 90 (Fig.
2).
Referring to Figs. 4 and 5, the profiling head 85 includes a pair of concave cutting rollers 92 mounted on shafts 93 for rotation therewith. The shafts 93 are rotatably mounted in the ends of a pair of parallel arms 95, which are pivotally mounted for rotation around a horizontal axis on a shaft 96 connected to the frame 46 of the apparatus by a nut 97. By changing the inclination of the arms 95, the profiling head is adapted to logs of different thicknesses. The shafts 96 and consequently the rollers 92 are driven by the shaft 6, pulleys 99 mounted on the shafts 93, the belt 90 connected to one of the pulleys 99 to the shaft 6, and belt 100 (Fig. 2) extending between the pulleys 99.
The saw attachment 86 is identical to the roller head 85, except that the rollers 92 are omitted, and a plurality of parallel, circular saw blades 102 are mounted on the lower shaft 93.
While the operation of the apparatus is obvious from the foregoing, the following is a brief description of the entire process. In operation, the log 2 is fed into the apparatus by rollers 3. The saw 26, which as mentioned above is preferably beneath the log, cuts a longitudinally extending groove 27 in the log for receiving the guide bar 28. The bar 28 ensures that the log 2 does not rotate around its longitudinal axis during travel between the cutter heads 31 and 32 (or 32 and 31 - Fig. lA). In the preferred form of the apparatus, the saw 26 and the guide bar 28 are connected to the lower vertical cutter head 31 for movement in unison with such head. The cutter heads 31 and 32 square the log, which is then fed between the profiling head 85 or the saw 86.
The shaft 6 and the engine 16 are also used to drive a variety of other elements of the apparatus including a grooving saw 26, which cuts a longitudinally extending groove 27 in the log 2 for receiving a fixed guide bar 28. The bar 28 remains in the groove 27 as the log is fed through the apparatus to ensure that the log does not rotate around its longitudinal axis. The saw 26 is connected to the shaft 6 by pulleys 27 and 28, and belts 29 (Fig. 2).
The thus stabilized log is fed to two pairs of opposed cutter heads generally indicated at 31 and 32. The first cutter heads 31 are adapted to square the top and bottom surfaces of the log 2, and the second cutter heads 32 are adapted to square the sides of the log. The cutter heads 31 and 32 are driven in unison by the shaft 6, which is connected to the cutter head shafts 33 by pulleys 35, 36 and 37, and belts 38 and 39.
In a preferred variation of the invention (Fig. lA), the grooving saw 26 and the guide bar 28 are mounted beneath the path of travel of the log 2. Moreover, the cutter heads 31 and 32 are reversed, i.e. the log 2 first passes between horizontal cutter heads 32, and then passes between vertical cutter heads 31. The grooving saw 26 and the guide bar 28 are mounted on a common bracket frame (not shown) connected to the bottom cutter head 31, so that the saw 26 and the bar 28 move in unison with the cutter heads towards and away from the log 2.
With reference to Fig. 3, each cutter head 31 or 32 includes a housing generally indicated at 40. The housing 40 is defined by telescopically interconnected outer and inner hubs or sleeves 41 and 42. An annular flange 44 extends outwardly from the bottom end of the outer sleeve 41 for receiving bolts 4S, which secure the sleeve 41 to the frame 46 of the apparatus. The flange 44 also defines a cover for a sprocket wheel 48. The sprocket wheel 48 is internally threaded for supporting the externally threaded, cylindrical side wall 50 of the inner sleeve 42. Each sprocket wheel 48 is connected by a chain 51 to a sprocket wheel 52 mounted on the shaft of a hydraulic motor 54 (one shown in Fig. 1). Each motor 54 is connected by a line 55 (Fig. 2) to a hydraulic distributor 56, which is connected to the pump 17 by a line 57.
By operating the motor 54, the inner sleeve 42 is caused to move longitudinally relative to the fixed outer sleeve 41 and a sleeve 59 extending outwardly from the side of the apparatus frame 46 opposite the inner housing. For such purpose a rectangular, longitudinally extending groove or keyway 60 is provided in the side wall 50 of the inner sleeve 42. A similar keyway (not shown) is provided in the interior of the outer sleeve 41, and a key 62 is mounted in the keyways. The top end of the outer sleeve 41 is closed by a cover 63, and the bottom end of the inner sleeve is closed by a cover 64. Bearings 65 (one shown) are provided in the covers 63 and 64 for rotatably supporting sections 67 and 68, respectively of the shaft 33. The shaft section 67 extends out of the top cover 63 of the housing 40. Three interconnected pulleys 36 are provided on the section 67 for the receiving belts 38 or 39 (Fig 2). The shaft sections 67 and 68 are interconnected by splines 71, which permit sliding movement but not relative rotation of the sections.
A cutter head 73 is mounted on the bottom free end of the shaft 33. The head 73 includes a hub 74 mounted on the shaft, and a plurality of inclined arms 75 extending radially outwardly from the hub 74. Each arm 75 carries blades 76, which are mounted on the arms 75 by bolts 78. A log guide 79 extends outwardly from the housing 40 for taking over from the guide bar 22. The log guide 79 is defined by a generally L-shaped arm 80, one end of which is sandwiched between the cover 64 and the inner sleeve 42. A plate 82 on the outer free end of the arm 80 bears against the adjacent squared side 83 of a log 2 downstream of the cutter head 31 or 32.
After passing the cutter heads 31 and 32, the log 2 either passes between a profiling head generally indicated at 85 tFigs. 2, 4 and 5) or through a circular saw 86 (Figs. 6 and 7, which cuts the squared log into boards. In either case, wood chips and sawdust created during processing are carried away by a fan 88 (Fig. 1). As in the case of the cutter heads 31 and 32, the profiling head 85 and the saw 86 are driven by the shaft 6. The drive for either element is connected to the shaft 6 by a pulley 89 and a belt 90 (Fig.
2).
Referring to Figs. 4 and 5, the profiling head 85 includes a pair of concave cutting rollers 92 mounted on shafts 93 for rotation therewith. The shafts 93 are rotatably mounted in the ends of a pair of parallel arms 95, which are pivotally mounted for rotation around a horizontal axis on a shaft 96 connected to the frame 46 of the apparatus by a nut 97. By changing the inclination of the arms 95, the profiling head is adapted to logs of different thicknesses. The shafts 96 and consequently the rollers 92 are driven by the shaft 6, pulleys 99 mounted on the shafts 93, the belt 90 connected to one of the pulleys 99 to the shaft 6, and belt 100 (Fig. 2) extending between the pulleys 99.
The saw attachment 86 is identical to the roller head 85, except that the rollers 92 are omitted, and a plurality of parallel, circular saw blades 102 are mounted on the lower shaft 93.
While the operation of the apparatus is obvious from the foregoing, the following is a brief description of the entire process. In operation, the log 2 is fed into the apparatus by rollers 3. The saw 26, which as mentioned above is preferably beneath the log, cuts a longitudinally extending groove 27 in the log for receiving the guide bar 28. The bar 28 ensures that the log 2 does not rotate around its longitudinal axis during travel between the cutter heads 31 and 32 (or 32 and 31 - Fig. lA). In the preferred form of the apparatus, the saw 26 and the guide bar 28 are connected to the lower vertical cutter head 31 for movement in unison with such head. The cutter heads 31 and 32 square the log, which is then fed between the profiling head 85 or the saw 86.
Claims (8)
EXCLUSIVE PROPERTY OR PRIVILEGE IS CLAIMED ARE DEFINED AS
FOLLOWS:
1. A log processing apparatus comprising feed means for feeding a log longitudinally through the apparatus; first guide means for engaging the log and preventing rotation of the log around its longitudinal axis during feeding of the log through the apparatus; first opposed cutter head means for squaring first opposed sides of the log; second opposed cutter head means for squaring second opposed sides of the log perpendicular to said first opposed sides, whereby the log is completely squared along its length after passing between said second cutter head means; first telescopic sleeve means carrying said first cutter head means for changing the spacing between said first cutter head means; second telescopic sleeve means carrying said second cutter head means for changing the spacing between said second cutter head means; drive means for simultaneously operating opposed cutter head means and for adjusting the spacing between said cutter head means; and second guide means downstream of said second cutter head means for guiding a squared log through the remainder of the apparatus.
2. A log processing apparatus according to claim 1, wherein said drive means includes engine shaft means driven by said engine means for operating said first guide means and said cutter head means; and hydraulic motor means operated by said engine means for adjusting the spacing between said cutter head means.
3. A log processing apparatus according to claim 2, wherein each said cutter head means includes outer sleeve means; inner sleeve means telescopically slidable in said outer sleeve means, shaft means rotatable in said outer and inner sleeve means; and blade means mounted on an outer free end of said shaft means for squaring a log surface.
4. A log processing apparatus according to claim 3, wherein each said cutter head means includes thread means on said inner sleeve means; internally threaded sprocket means engaging said thread means; and chain means connecting said sprocket means to said hydraulic motor means for driving said sprocket means to move said inner sleeve means longitudinally relative to said outer sleeve means.
5. A log processing apparatus according to claim 2, including saw means connected to said shaft means downstream of said second cutter head means in the direction of travel of a log through the apparatus for cutting a log into boards.
6. A log processing apparatus according to claim 2, including profiling head means connected to said shaft means downstream of said second cutter head means in the direction of travel of a log through the apparatus for simultaneously profiling opposite sides of a squared log.
7. A log processing apparatus according to claim 6, wherein said profiling head means includes a pair of profiling roller means; arm means supporting said roller means in engagement with opposite sides of a squared log.
8. A log processing apparatus according to claim 1, wherein said first opposed cutter head means are horizontally disposed for squaring opposite vertical sides of a log; said second cutter head means are vertically disposed for squaring the top and bottom of a log; and said first guide means is connected to said first cutter head means for movement in unison therewith towards and away form a log.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA002137091A CA2137091A1 (en) | 1994-12-01 | 1994-12-01 | Log processing apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA002137091A CA2137091A1 (en) | 1994-12-01 | 1994-12-01 | Log processing apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2137091A1 true CA2137091A1 (en) | 1996-06-02 |
Family
ID=4154776
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002137091A Abandoned CA2137091A1 (en) | 1994-12-01 | 1994-12-01 | Log processing apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2137091A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT406131B (en) * | 1998-07-17 | 2000-02-25 | Wolf Systembau Gmbh & Co Kg | METHOD AND DEVICE FOR PRODUCING EIGHT- OR MULTIPLE-SIDED EDGEWOODS |
| CN115302008A (en) * | 2022-07-25 | 2022-11-08 | 山东沪金精工科技股份有限公司 | Special cutter for machining exhaust groove and using method thereof |
-
1994
- 1994-12-01 CA CA002137091A patent/CA2137091A1/en not_active Abandoned
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT406131B (en) * | 1998-07-17 | 2000-02-25 | Wolf Systembau Gmbh & Co Kg | METHOD AND DEVICE FOR PRODUCING EIGHT- OR MULTIPLE-SIDED EDGEWOODS |
| US6240988B1 (en) | 1998-07-17 | 2001-06-05 | Wol Systembau Gesellschaft M.B.H. | Process and device for production of octagonal or polygonal beams |
| CN115302008A (en) * | 2022-07-25 | 2022-11-08 | 山东沪金精工科技股份有限公司 | Special cutter for machining exhaust groove and using method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FZDE | Discontinued |