JPH0516105A - Device for working material wood into columnar body - Google Patents

Abstract

PURPOSE:To work material wood into a columnar body having the smooth surface at a stroke by rotating an annular body and sending the whole cutter in the axial direction. CONSTITUTION:The title working device is constituted of both a roughing cutter A for roughly cutting a fixed material wood into a columnar body and a finishing cutter for finish-cutting this columnar body. A first roughing edge 4 is inserted freely movably forward and backward into a supporting hole 10 formed in a nearly truncated conical part 2. A supporting member 11 is fixed to the rear end of the supporting hole 10. Push bolts 12, 12 are screwed into the supporting member 11. The front ends of the bolts 12, 12 are allowed to abut against the rear end of the first roughing edge 4. Moreover a drag bolt 13 equipped with a stopper 13' in the rear end is inserted into the supporting member 11. The front end of the drag bolt 13 is screwed to the female screw of the first roughing edge 4. Thereby material wood is worked into a columnar body having required diameter at a stroke while both the roughing cutter and the finishing cutter are moved to the other end of the material wood from one end thereof. Therefore efficiency of working operation is remarkably enhanced.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for processing raw wood into a cylindrical body. The cylindrical body processed from raw wood by the apparatus of the present invention is used as a log for a log house, for example.

[0002]

2. Description of the Related Art When processing raw wood into a cylindrical body,
In general, a flat blade is applied to the surface of a rotating raw wood so that its cutting edge is parallel to the surface of the raw wood, and is cut.

[0003]

However, in the above-mentioned prior art, since the flat blade is cut on the surface of the rotating raw wood so that the edge of the flat blade is parallel to the surface of the raw wood, deep cutting is performed at once. It cannot be cut. Therefore, since the flat blade has to be repeatedly fed while being gradually fed toward the center of the raw wood, there is a problem that the work efficiency is low. Further, when a flat blade is applied to the surface of the rotating raw wood so that its blade edge is parallel to the surface of the raw wood and is cut, a smooth surface cannot be obtained.

The present invention has been made in order to solve such problems and to provide an apparatus capable of processing raw wood into a cylindrical body having a smooth surface all at once.

[0005]

In order to solve the above problems, the present invention provides an apparatus for processing a raw wood into a cylindrical body, including a roughing cutter for roughly cutting a fixed raw wood into a cylindrical body and the cylindrical body. It consists of a finishing cutter. The rough-cutting cutter has a first rough-cutting blade whose inner edge is inwardly located in the substantially truncated cone-shaped portion of a tool support body in which a substantially cylindrical portion is continuously provided at a small-diameter end of a hollow truncated cone-shaped portion. The cutter is fixed in a state of slightly protruding in the substantially tangential direction, and the second rough cutting blade is fixed in the substantially cylindrical portion with its cutting edge slightly protruding inward in the substantially tangential direction, and the cutter is rotated while rotating the blade support. The whole is sent in the axial direction. In the finishing cutter, a ring gear having teeth on its outer periphery is fixed to a support frame, and an annular body having a pinion gear meshing with the ring gear is rotatably disposed on the outer periphery of the ring gear. Is equipped with a substantially cylindrical finishing blade which is associated with the pinion gear via a transmission means, and feeds the entire cutter in the axial direction while rotating the annular body.

It is desirable to radially install blades for scattering chips on the blade support of the rough cutting cutter.

[0007]

In the apparatus for processing a raw wood into a columnar body according to the present invention, the raw wood is fixed, and a device comprising a roughing cutter and a finishing cutter is fed from one end to the other end of the raw wood with the roughing cutter in front. Good. The rough-cutting cutter feeds in the axial direction with its substantially frustoconical portion side facing forward. At that time, the raw wood is first rough-cut to a diameter close to the desired diameter by the first rough-cutting blade fixed to the substantially frustoconical portion with the blade tip slightly protruding inward in the substantially tangential direction. The second rough cutting blade is fixed to the substantially cylindrical portion on the rear side of the substantially frustoconical portion in a state where the blade tip slightly protrudes inward in the substantially tangential direction, and is roughly cut to a substantially desired diameter. The finishing cutter is fed in the axial direction with its support frame facing forward. In the finishing cutter, when the ring-shaped body arranged on the outer periphery of the ring gear is driven to rotate, the pinion gear of the ring-shaped body meshes with the fixed ring gear to rotate at high speed. When the pinion gear rotates, the substantially cylindrical finishing blade associated with the pinion gear also rotates via the transmission means. Since the finishing blade is attached to the annular body rotating around the outer circumference of the ring gear, the finishing blade revolves around the raw wood (cylindrical body) while rotating on its own axis. Therefore, the cylindrical body rough-cut from the raw wood by the rough-cutting cutter is smoothly finished by the finishing blade. In this way, the raw wood is processed at once into a cylindrical body having a smooth surface.

Further, when blades for scattering chips are radially attached to the blade support of the roughing cutter, the blades rotate together with the cutter, so that the chips cut by the roughing blade and the finishing blade are centrifugally separated. Scattered outward from the cutter by force.

[0009]

Embodiments of the present invention will now be described with reference to the accompanying drawings. The apparatus for processing a raw wood into a cylindrical body according to the present invention includes a roughing cutter A for roughly cutting a fixed raw wood into a cylindrical body, and a finishing cutter B for finishing the cylindrical body. First, the rough cutting cutter A will be described.
Reference numeral 1 is a blade support in the rough cutting cutter A.
The blade support 1 is formed by connecting a substantially cylindrical portion 3 to a small diameter end (rear end) of a hollow substantially frustoconical portion 2 in the front portion. The first rough cutting blade 4 is fixed to the substantially truncated conical portion 2 with its cutting edge 5 slightly projecting inward in a substantially tangential direction from the through hole 6 formed in the substantially truncated conical portion 2. As an example, a pair of the first rough cutting blades 4 are attached to the truncated cone portion 2. In order to ensure the smooth cutting of the raw wood, each first rough cutting blade 4 has, as shown in FIG. 11, a back surface 5 ′ of the cutting edge 5 and the raw wood 28 at the cutting point 40 at each point of the entire width of the cutting edge 5. The working angle α with the surface to be cut is at each cutting point 40 with the full width of the cutting edge 5
It is desirable that the cutting edge 5 be uniformly cut over its entire width by obliquely arranging the log 28 so that it becomes substantially the same regardless of the size of the log 28. The second rough cutting blade 7 is fixed to the substantially cylindrical portion 3 with its cutting edge 8 slightly protruding inward in a substantially tangential direction from the through hole 9 formed in the substantially cylindrical portion 3. A pair of the second rough cutting blades 7 are attached to the substantially cylindrical portion 3 as an example. The first rough cutting blade 4 and the second rough cutting blade 7 may be the same, but the positions of the respective cutting edges 5 and 8 can be adjusted back and forth. That is, for example, the first rough cutting blade 4 will be described. As an example, as shown in FIG. 3, the first rough cutting blade 4 is slidably fitted in a support hole 10 formed in the substantially truncated cone portion 2 so as to be able to move forward and backward. Support hole 10
A support member 11 is fixed to the rear end of the support member 11, and push bolts 12, 12 are screwed to the support member 11,
The front end of the pulling blade 13 is brought into contact with the rear end of the first rough cutting blade 4, and a pulling bolt 13 having a stopper 13 ′ at the rear end is slidably fitted on the supporting member 11 to cut the front end of the pulling bolt 13 into the first rough cutting. It is screwed onto the female thread of the blade 4. 14 is the first roughing blade 4
The guide holes 15 and 15 are guide protrusions corresponding to the guide holes 14. In this case the push bolt 12,
The first rough cutting blade 4 can be moved back and forth by moving the pulling bolt 12 and the pull bolt 13 forward and backward. The position of the cutting edge 8 of the second rough cutting blade 7 can be adjusted back and forth like the first rough cutting blade 4.

It is desirable that a plurality of blades 39 (two blades in the illustrated case) are radially attached to the blade support 1 of the rough cutting cutter A for scattering chips. In the illustrated case, one blade 39 is provided near each finishing blade 7.

The blade support 1 is adapted to be rotated and fed in the axial direction (the direction of the arrow in FIG. 1). In rotating the blade support 1, for example, a pulley 16 is attached to the blade support 1, and a winding transmission means 18 such as a belt is wound between the pulley 16 and the rotation drive motor 17.

Next, the finishing cutter B will be described. Reference numeral 50 is a support frame for the finishing cutter B. A ring gear 52 having teeth 51, 51, ... on its outer periphery is fixed to the support frame 50. 53 is a mounting member. The outer circumference of the ring gear 52 has teeth 51, 51 of the ring gear 52.
An annular body 55 provided with a pinion gear 54 that meshes with.
Is rotatably disposed via a bearing 56. A substantially cylindrical finishing blade 58 associated with the pinion gear 54 is attached to the annular body 55 via a transmission means 57. In the case shown in FIG. 5, two transmission gears 59 and 60 are used as the transmission means 57, but the transmission means 57 is a chain,
It may be a winding transmission means such as a belt. Finishing blade 5
As 8, there is used, for example, one formed by forming a spiral or linear blade 61 on the surface of a substantially cylindrical body. 62, 63
Is a shaft, and 64 is a holding frame that holds the transmission means 57 and the finishing blade 58. The finishing blade 58 enables position adjustment in the radial direction of the cylindrical body according to the diameter of the cylindrical body to be finished from the raw wood. That is, as shown in FIG. 6 as an example, an arcuate elongated hole 65 centered on the center line of the pinion gear 54 is formed in the retaining frame 64, and the retaining frame 64 is fixed by a fastener 66 such as a bolt penetrating the elongated hole 65. Is fixed to the annular body 55. In this case, the position of the finishing blade 58 can be adjusted in the radial direction of the cylindrical body by loosening the fastener 66 and rotating the holding frame 65. In the example shown in FIG. 6, the pair of finishing blades 58 are attached to the annular body 55, but the number of finishing blades 58 is arbitrary.

The finishing cutter B feeds the entire cutter axially (in the direction of the arrow in FIG. 1) while rotating the annular body 55. The annular body 55 is rotated by a rotary drive motor 67 as an example. That is, as an example, the annular body 55 is provided with a pulley 68, and a winding transmission means 69 such as a belt is wound between the pulley 68 and the rotary drive motor 67.

It is desirable that the rough cutting cutter A and the finish cutting cutter B are fed integrally in the axial direction in a state where the rough cutting cutter A is attached to the front side of the support frame 50 of the finish cutting cutter B (see FIG. 5). That is, as an example, a carriage 20 is disposed on a base 19 so as to be capable of reciprocating in the axial direction, and a roughing cutter A and a finishing cutter B are mounted on the carriage 20 by appropriate supporting means and a roughing cutter. The rotary drive motors 17 and 67 for A and the finishing cutter B are attached. A pair of rails 21, 21 are arranged on the base 19, and the rail grooves 22, 22 of the carriage 20 are slidably fitted on the rails 21, 21. Further, as an example of means for reciprocally driving the carriage 20, a pair of racks 23, 23 is fixed on the base 19, and pinions 24, 24 corresponding to the racks 23, 23 are arranged on the carriage 20. It is made to rotate by the reciprocating drive motor 25 provided. That is, the pinions 24, 24 are attached to the pinion shaft 26 in association with the racks 23, 23, and the pinion shaft 26 is rotated by a reciprocating drive motor 25 via a winding transmission means 27 such as a belt. 26 'is a bearing of the pinion shaft 26.

The raw wood 28 to be processed has a base 19 at both ends.
It is fixed by the end fixing means 29, 30 arranged above.
In FIG. 1, one end fixing means 29 penetrates the rough cutting cutter A and the finish cutting cutter B. In addition,
Reference numeral 31 in FIG. 7 is a log processing cutter arranged on the base 19. This log processing cutter 31 is a back split formation for forming a back split 33 and a glove 34 shown in FIGS. 9 and 10 on a log 32 for a log house, which is processed from the raw wood 28 into a columnar body by the cutter of the present invention. The blade 35 and the glove forming blade 36 are integrated with each other, and the blade 35 and the glove forming blade 36 are wound around to form a transmission means 3.
It is made to rotate by the drive motor 38 via 7. The back split 33 is formed in advance to prevent the log 32 from cracking, and the glove 34 includes a plurality of logs 32, 32 ,. ． ． Are to be stacked as shown in FIG.

[0016]

As described above, according to the present invention,
The raw wood is cut all at once to a diameter close to the desired diameter by the first roughing blade fixed to the truncated cone of the blade support in the roughing cutter, and almost desired by the second roughing blade fixed to the substantially cylindrical portion. Roughly cut into a cylindrical body with a diameter of. Further, this columnar body is finish-cut by a finishing blade in a finish-cutting cutter. That is, while the rough cutting cutter and the finish cutting cutter cutter move from one end to the other end of the raw wood, the raw wood is processed all at once into a columnar body having a desired diameter. Therefore, according to the present invention, the efficiency of the work of processing the raw wood into the cylindrical body is significantly improved. Further, since the raw wood is roughly cut into a columnar body by a roughing cutter, and then finished by a substantially cylindrical finishing blade of the finishing cutter, a product having an extremely smooth surface can be obtained.

Further, when blades for scattering chips are radially attached to the blade support of the rough cutting cutter, the chips generated during the work are scattered outward by the blade rotating with the cutter without clogging the cutter. To be done.

[Brief description of drawings]

FIG. 1 is a side view showing a state in which a device according to the present invention is attached to a base.

FIG. 2 is a perspective view showing a rough cutting cutter.

FIG. 3 is a side view of the above rough cutting cutter.

FIG. 4 is a front view of the above rough cutting cutter.

FIG. 5 is a sectional view showing a finishing cutter.

FIG. 6 is a rear view of the same finishing cutter.

FIG. 7 is a rear view showing a state in which the device of the present invention is attached to a base.

FIG. 8 is a side view showing a state in which a raw wood is processed into a cylindrical body all at once.

FIG. 9 is a cross-sectional view showing a log and a log for a log house.

FIG. 10 is a front view showing a state in which logs for a log house are stacked.

FIG. 11 is an explanatory diagram showing a relationship between a raw wood and a first rough cutting blade.

[Explanation of symbols]

A rough cutting cutter B Finishing cutter 1 knife support 2 approximately frusto-conical part 3 Substantially cylindrical part 4 First roughing blade 5 cutting edge 5'back 6 through holes 7 Second rough cutting blade 8 cutting edges 9 through holes 10 Support holes 11 Support member 12 push bolt 13 Pull bolt 13 'stopper 14 Guide hole 15 Guide protrusion 16 pulley 17 Rotary drive motor 18 Winding transmission means 19 base 20 carriages 21 rails 22 Rail groove 23 racks 24 pinion 25 reciprocating drive motor 26 pinion shaft 26 'bearing 27 Winding transmission means 28 Log 29 end fixing means 30 end fixing means 31 Log processing cutter 32 logs 33 back split 34 gloves 35 Back split forming blade 36 glove forming blade 37 Winding transmission means 38 Drive motor 39 feathers 40 cutting points 50 support frame 51 teeth 52 ring gear 53 Mounting member 54 pinion gear 55 ring 56 bearing 57 Transmission means 58 Finishing blade 59 Transmission gear 60 transmission gear 61 blades 62 axes 63 axes 64 holding frame 65 slot 66 Fasteners 67 rotary drive motor 68 pulley 69 Winding transmission means

Claims (2)

[Claims] 1. A rough cutting cutter for rough cutting a fixed raw wood into a cylindrical body and a finishing cutter for finishing cutting the cylindrical body, wherein the rough cutting cutter is provided at a small diameter end of a hollow truncated cone. The first rough cutting blade is fixed to the substantially truncated cone-shaped portion of the blade support body in which the substantially cylindrical portions are connected in a state where the tip of the blade is slightly protruded inward in the substantially tangential direction, and the substantially cylindrical portion is formed. The second rough cutting blade is fixed with its cutting edge slightly protruding inward in a substantially tangential direction, and the entire cutter is fed in the axial direction while rotating the blade support, and the finishing cutting cutter, A ring gear having teeth on its outer periphery is fixed to the support frame, and an annular body provided with a pinion gear meshing with the ring gear is rotatably disposed on the outer periphery of the ring gear, and the annular body is provided with a transmission means. In relation to the pinion gear Attaching a substantially cylindrical finishing cutter, while rotating the annular member is characterized by being to send the entire cutter axially, apparatus for processing the wood in the cylindrical body. 2. The apparatus for processing a raw wood into a columnar body according to claim 1, wherein blades for scattering chips are radially attached to a blade support of the rough cutting cutter.