JP2001170902A - Apparatus for cutting wooden sheet material - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an apparatus for cutting a wooden sheet material in which cut waste discharged with cutting by means of a circular saw is ground to facilitate recovery of it. SOLUTION: A cutting saw member wherein a grinding saw base is provided between two circular saw bases is fitted on a rotational shaft whose shaft line is inclined at a specified angle to the above described wooden sheet material supported in parallel by means of the first and the second supporting bases. A moving mechanism for moving the cutting saw member along the first and the second supporting bases and a carrying device freely running and stopping are provided. A rotational driving member is moved on one way along the first and the second supporting bases and the front end part of the wooden sheet material is cut at a specified angle.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for cutting a wooden board.

[0002]

For example, when joining wood boards such as short veneer veneers or plywood to produce a long wood board, each end of the wood board corresponding to the joint is used. A strong bonding strength is obtained by forming a scarf surface inclined at a required angle with respect to the wooden board material at the portion, and overlapping the scarf surfaces at each end with an adhesive.

[0003] As a cutting device for forming a scarf surface at each end of a wooden board, for example, as shown in Japanese Patent Application Laid-Open No. 6-122101, a wooden board is disposed at a required interval and conveyed. Front end in the transport direction (hereinafter referred to as front end)
And the rear end of the wooden board in the transport direction (hereinafter referred to as the rear end)
, A movable body that reciprocates in a direction perpendicular to the direction in which the wooden board is transported, and an axis of a rotation axis is formed in the movable body in a direction perpendicular to the movable body. An electric motor that is attached at an angle in accordance with the angle of inclination of the scarf surface to be attached, and a rotating shaft of the electric motor, one of which is attached to the front end of a wooden board supported on one support base, and 2. Description of the Related Art There is known an apparatus including two circular saws each of which cuts a rear end of a wooden board supported on the other support table.

In this cutting apparatus, the movable body is moved in a direction perpendicular to the direction of conveyance while the front end and the rear end of the wooden board are respectively supported on each support base, so that the corresponding front end of the wooden board can be obtained by each circular saw. The scarf surface is formed by cutting the portion and the rear end at an angle that matches the angle of inclination of the electric motor rotating shaft. However, cutting dust is also generated along with the cutting by the circular saw.

The cutting debris is removed from the cutting position by suction through a suction hose connected to a suction device arranged near a circular saw of the cutting device. Because many are formed in a row,
It could not be effectively removed by suction because of being caught in the suction port of the suction hose. For this reason, the cutting waste remains on the support table, and when cutting is performed in a state where the wooden board is mounted on the remaining cutting waste, there has been a problem that the cutting accuracy of the scarf surface is deteriorated.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned conventional drawbacks, and an object of the present invention is to facilitate the recovery by crushing the cutting waste discharged together with the cutting by the circular saw. It is an object of the present invention to provide an apparatus for cutting a wooden board that can be used.

Another object of the present invention is to provide a wooden board material that can efficiently collect cutting chips and prevent the cutting chips from adhering to a support base or the like, thereby reducing the cutting accuracy of the scarf surface. It is to provide a cutting device.

[0008]

SUMMARY OF THE INVENTION The present invention is directed to a first and second support bases which extend in parallel at a predetermined interval, and in which wooden boards supported by the first and second support bases are parallel to each other. A rotation drive member that has a rotation axis that is inclined at a predetermined angle with respect to the wooden board supported in parallel between the support bases, and a rotation drive member that is rotated in a fixed direction, and a rotation shaft of the rotation drive member. A cutting saw member provided with a pulverizing sawing machine between two circular sawing machines, a moving mechanism for moving the cutting sawing member along the first and second supports, and a transport device capable of stopping travel; The transport device transports the front end portion of the wooden board to the first support base so that the front end is slightly protruded toward the second support base, stops the front end portion, and then rotates the rotary driving member to the first support base. And one-way movement along the second support, and then with respect to the second support by the transfer device. The rear end of the wooden board is loaded and stopped so that the rear end thereof is supported with the rear end slightly protruding toward the first support base, and then the rotary drive member is moved along the first and second support bases. Conversely, the transport device and the moving mechanism are controlled to move one way.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. Embodiment 1 FIG. 1 is a perspective view of the entire cutting apparatus, FIG. 2 is a side view from the direction of arrow II in FIG. 1, and FIG. 3 is an enlarged perspective view showing a main part of the cutting apparatus.

First and second supports 3 and 5 extend on a main body frame (not shown) of the cutting device 1 in a direction perpendicular to a direction in which the wooden board 7 is conveyed, which will be described later, and extend in parallel with each other. And the lower surface of the second support 5 is arranged above the upper surface of the first support 3 by the thickness of the wooden board 7. The upper surface of the first support 3 supports the lower surface of the front end of the wooden plate 7, and the lower surface of the second support 5 supports the upper surface of the rear end of the wooden plate 7.

A first conveyor 9 such as a belt conveyor or a roller conveyor is located on the upper side of the first support 3 in the conveying direction.
However, the transfer surface is arranged so as to coincide with the support surface of the first support table 3. A second transport device 11 similar to the first transport device 9 is arranged on the lower side of the second support table 5 in the transport direction so as to coincide with the transport surface of the first transport device 9. The first transport device 9 and the second transport device 11 intermittently transport the wooden board 7 such as veneer veneer or plywood in the direction of the solid line arrow (transport direction) shown in FIG.

An optical detector (photo sensor) is provided on the main body frame corresponding to the upper side of the lower side of the first transport device 9 in the transport direction.
A large number of plate detectors 13 including a sensor and a device type detector (limit switch) are mounted at predetermined intervals in the direction perpendicular to the transport direction, and the first transport device 9 is a cutting device 1 or a main control device (not shown). The wooden plate 7 is conveyed to the cutting device 1 by the conveyance command signal from the controller, and when the front end of the wooden plate 7 passes, for example, all of the plate detectors 13 transition from the plate non-detection state to the plate detection state. The transport drive is delayed at a timing delayed by a predetermined time from the position where the wooden board 7 has transitioned to the board detection state to the position slightly lower than the first support base 3 in the transport direction from the position detected by the board detector 13. Stop, and attach the front end of the wooden board 7 to the first support 3.
The first support table 3 is supported so as to protrude from the lower side in the transport direction of the first support table 3 toward the cutting device 1.

The second transporting device 11 is transported and driven by a transport command signal from the cutting device 1, and transfers the wooden board 7 transported and transferred from the first transporting device 9 which is synchronously transported and transported to the unloading side. Transport to Then, the rear end of the wooden board 7 carried out by the first carrier 9 passes through each board detector 13 and, for example, one of the board detectors 13
After a transition from the board detection state to the board non-detection state, the transport drive is stopped at a delayed timing for a predetermined time from the board detector 13 to the second support table 5, and the wood board 7 transits to the board non-detection state. The position is positioned below the second support table 5 and slightly from the upper side in the transport direction of the second support table 5 to the cutting device 1 side.

A horizontal rail portion 15 is provided on the main body frame of the cutting device 1 located between the first and second support bases 3 so as to extend in a direction orthogonal to the transport of the wooden board 7.
5, a horizontal movable body 17 is supported so as to be movable in a direction perpendicular to the transport direction. A feed screw which constitutes a moving mechanism connected to an electric motor 19 attached to the main body frame at one axial end thereof is rotatably supported on the main body frame with an axis in the direction perpendicular to the conveyance direction on the horizontal movable body 17. 21 are engaged with each other, and are reciprocated in the transport orthogonal direction with the rotation of the feed screw 21.

The upper and lower rails 23 are attached to the horizontal movable body 17, and the upper and lower rails 23 are provided with the upper and lower movable bodies 25 at a predetermined angle (the inclination angle of the scarf surface) with respect to the vertical direction. It is inclined to. The structure for inclining the vertical movable body 25 may be any of a structure in which the horizontal rail portion 15 itself is inclined and mounted, and a structure in which the mounting surface of the vertical rail portion 23 in the horizontal movable body 17 is formed to be inclined at a predetermined angle with respect to the vertical direction. There may be.

A vertically movable member 27 such as a cylinder having a base end attached to the horizontal movable body 17 is connected to the vertically movable body 25, and the vertically movable body 25 is reciprocated vertically by the operation of the vertically movable member 27. In a state in which the vertical movable body 25 is located below due to the non-operation of the vertical operating member 27, the lower surface of the first circular sawing machine 33a in the cutting saw member 31 described later is located at the lower corner of the first support 3 in the transport direction. When the up-down movable body 25 moves upward by the operation of the up-down operation member 27, the upper surface of the second circular saw 33b of the cutting saw member 31 approaches the upper hand corner of the second support 5 in the transport direction. The vertical movement width is set in.

The moving width of the vertical movable body 25 in the vertical direction is adjusted by screwing a stroke adjusting screw (not shown) to the horizontal movable body 17 so as to adjust the position, and pressing the vertical movable body 25 against the adjusting screw. What is necessary is just to be able to adjust the moving distance of the vertically movable body 25.

An electric motor 29 for cutting as a rotary driving member having an axis inclined at a required angle (inclination angle of a scarf surface) in the vertical direction toward the second transfer device 11 is attached to the up-down movable body 25. A cutting saw member 31 is exchangeably attached to a rotating shaft of the cutting electric motor 29. As shown in FIG. 3, the cutting saw member 31 has a three-piece structure in which a crushing saw board 35 is overlapped and fixed between two first and second round saw boards 33a and 33b. Board 33a
33b mainly forms the scarf surface 7a by cutting the front end and the rear end of the wooden board 7 at a required inclination angle, respectively, and the grinding saw board 35 is formed by cutting the ends by the circular saw boards 33a and 33b. It has a function of pulverizing the cut waste 7b to be fine wood chips.

When the scarf surface 7a is cut and formed at the front end and the rear end of the wooden board 7, the scarf is formed in the axial direction with respect to the first and second circular sawing machines 33a / 33b forming the scarf surface 7a. Circular saw 33 located far from surface 7a
The b / 33a also has a function of pulverizing wood chips similarly to the pulverizing saw board 35. For this reason, the thickness of the crushing sawing machine 35 including the other circular sawing machines 33a / 33b acting on the crushing of the wood chips at the time of forming the scarf surface 7a is the thickness of the wooden board 7, the scarf surface 7a and the first and the second. It is set according to the width of protrusion of the wooden board 7 when supported by the two supports 3 and 5, respectively.

The pulverizing saw board 35 may be any one in which pulverizing blades extend in the radial direction without providing "grips" like the circular saw boards 33a and 33b and are integrally formed, as in the circular saw boards 33a and 33b. In order to finely pulverize wood chips, a plurality of rows of crushing blades are provided on the outer peripheral surface of the disk-shaped body in the thickness direction (axial direction), and a gap around the axis is provided between crushing blades adjacent in the axial direction. Those formed integrally with each other while being shifted from each other are suitable.

The wood chips pulverized at the time of cutting the scarf surface 7a are collected by vacuum suction using a suction device (not shown) to prevent scattering. As a specific structure, a part of the first circular saw 33 a for cutting the front end of the wooden board 7 supported by the first support 3 is attached to the electric motor 29 for cutting, and the second support A cover having an opening for exposing a part of the other second circular saw 33b for cutting the rear end of the wooden board 7 supported by 5 is attached, and the lower surface of the cover is connected to a suction device. It has a structure in which a suction port of a suction hose is attached, and can directly suck wood chips crushed and scattered in the cover.

When the scarf surface 7a is formed at the front end and the rear end of the wooden board 7 by the cutting saw member 31,
It is necessary to suppress the warpage of the wooden board 7. As a structure for preventing the warpage, an upper cover that covers the outer peripheral side of the cutting saw member 31 located on the first support base 3 side and a lower cover that covers the outer peripheral side of the cutting saw member 31 located on the second support base 5 side A pressing member having a pressing body made of polyamide resin or the like having a low sliding contact resistance is attached to a rod of the cylinder, and a front end portion and a rear end portion of the wooden board 7 supported by the first and second support bases 3 and 5, respectively. First and second corresponding to the near side of cutting in
The wooden boards 7 are restrained from warping during cutting by being pressed toward the supports 3 and 5 respectively.

Next, the cutting apparatus 1 configured as described above
The operation of forming the scarf surface 7a will be described. FIG. 4 is a side view showing a cutting state of a front end portion of the wooden board, and FIG. 5 is a side view showing a cutting state of a rear end of the wooden board.

The wooden board 7 placed by the first transporting device 9 driven by the transport command signal from the cutting device 1 or the main control device is transported toward the first support table 3 side, and each wooden material detector is detected. After the wooden board 7 has passed through the front end of the wooden board 7, all the respective board detectors 13 have transitioned from the board non-detection state to the board detection state, and the position where the wood board 7 has transitioned to the board detection state is the board detector 13. The transport drive of the first transport device 9 is stopped at a timing delayed by a predetermined time from the detected position to the position slightly lower than the first support 3 in the transport direction, and the wooden board 7 is placed on the first support 3. Is supported in a state where the front end protrudes from the lower side of the first support table 3 in the transport direction toward the cutting device 1.

When the wooden board 7 is carried into the first support 3, the cutting saw member 31 of the cutting device 1 is attached to the wooden board 7.
Is waiting to move to one side in the direction perpendicular to the conveyance direction outside the conveyance path. Further, the vertical operating member 27 is kept in the non-operating state, and the lower surface of the first circular sawing machine 33a, which positions the cutting saw member 31 below, is close to the lower corner of the first support 3 in the transport direction. Is located.

Next, the front end of the wooden board 7 is
When supported above, the electric motor 19 is rotationally driven to move the horizontal movable body 17 from one side to the other side in the direction orthogonal to the direction of conveyance of the wooden board 7, and the cutting is performed by the cutting electric motor 29 that is rotationally driven. Rotate the member 31 in a predetermined direction,
The front end of the wooden board 7 supported on the first support 3 is cut at an inclination angle that matches the inclination of the cutting saw member 31 to form a scarf surface 7a.

At the time of cutting, the cylinder of the pressing member is operated to press the pressing body against the front end of the front end of the wooden board 7 supported on the first support table 3, and to warp the wooden board 7. Scarf surface 7a can be formed with high precision.

The first circular saw 33a of the cutting saw member 31 forming the scarf surface 7a has a lower surface which is close to the lower corner of the first support table 3 in the conveying direction. Scarf face 7 when cutting part
The ruler a can be accurately set and cut and formed with high precision.

Further, the formation of the scarf surface 7a with respect to the front end of the wooden board 7 is performed by a first circular saw 33a located on the lower side of the cutting saw member 31 as shown in FIG. 4, and the hatched portion shown in FIG. However, this cutting waste 7b is
Crushing is performed by a grinding saw machine 35 that rotates integrally with the circular saw machine 33a and a second circular saw machine 33b positioned above, and is turned into wood chips.

The crushed wood chips are removed from the cutting device 1 by vacuum suction through a suction hose that moves together with the cutting saw member 31.

The scarf surface 7 at the front end of the wooden board 7
When a is formed and the horizontal movable body 17 is moved to the other side in the direction orthogonal to the transport, the rotational drive of the electric motor 19 is interrupted based on the movement completion signal from the detector provided at the position, and the horizontal movable body 17 is moved horizontally. The body 17 is stopped at the position, and the vertical operating member 27 is operated to move the vertical movable body 25 upward with respect to the horizontal movable body 17. Thereby, the upper surface of the upper second circular sawing machine 33b of the cutting saw member 31 is brought close to the upper corner of the second support table 5 in the transport direction.

Further, the cylinder of the pressing member located on the first support base 3 is moved backward to move the pressing body upward, and the cylinder of the pressing member located on the second support base 5 side is operated to operate the pressing body. Is moved upward so that the lower surface of the rear end of the wooden board 7 can be pressed.

Next, the first transport device 9 and the second transport device 11 are transported and driven at the timing described above to transport the wooden plate 7 having the scarf surface 7a formed at the front end, and the wooden plate 7 is removed. The sheet is transferred from the first transfer device 9 to the second transfer device 11 and transferred. A predetermined time from the plate detector 13 to the second support 5 after at least one of the plate detectors 13 has transitioned from the plate detection state to the plate non-detection state due to the rear end of the wooden plate 7 passing through the plate detector 13. The transport drive is stopped at the delayed timing, and the position of the wooden board 7 transferred to the second transport apparatus 11 at which the state has shifted to the board non-detection state is located below the second support 5 and the second support 5. From the upper side in the conveying direction.

After at least one of the sheet material detectors 13 has transitioned from the sheet material detection state to the sheet material non-detection state, the second transport device 11 is delayed by the above-described predetermined time.
Is stopped, and the rear end of the wooden board 7 is supported by the second support 5, while the first carrier 9 continues to be carried, and is then carried in to form the scarf surface 7a. The control may be performed such that the front end of the wood board 7 is supported on the first support base 3 to stand by.

Next, the rear end of the wooden board 7 is
The electric motor 19 is driven to rotate in the reverse direction at the stop position, and the upper surface is formed by the cutting saw member 31 that rotates while moving the horizontal movable body 17 from the other side to the one side (original position side) in the conveyance orthogonal direction. The rear end of the wooden board 7 supported on the lower surface of the second support 5 is cut at a predetermined inclination angle to form a scarf surface 7a.

At the time of cutting, similarly to the above-described formation of the scarf surface 7a at the front end of the wooden board 7, the front end of the wooden board 7 is pressed by a pressing body before cutting to prevent warping. Thereby, the scarf surface 7a can be formed with high precision.

Further, the other circular sawing machine 33b of the cutting saw member 31 forming the scarf surface 7a has its upper surface close to the upper corner of the second support table 5 in the conveying direction. At the time of cutting the end, the scarf surface 7b can be accurately defined and cut with high precision.

Further, the hatched portions shown in FIG. 5 are formed as the cutting chips 7b along with the above cutting, and the cutting chips 7b are mainly formed by the pulverizing saw board 35 and the first lower part shown in the drawing in the same manner as the operation described above. It is pulverized by the circular saw 33a and turned into wood chips. The cutting chips made into wood chips are removed from the cutting device 1 by being vacuum-sucked by the suction device via a suction hose that moves together with the cutting saw member 31.

When the cutting saw member 31 is moved to one side (original position side) in the direction perpendicular to the conveyance direction outside the conveyance path with the formation of the scarf surface 7a with respect to the rear end of the wooden board 7, it is provided at that position. The rotational drive of the electric motor 19 is interrupted by the disconnection completion signal from the detected
Is stopped and the up-down operation member 27 is operated to move the up-down movable body 25 downward with respect to the horizontal movable body 17, and the scarf surface 7 a
Can be formed.

Further, based on the trailing end cutting completion signal, the first transporting device 9 and the second transporting device 11 are transported and driven, respectively.
Wood board 7 whose rear end has been cut by second transport device 11
After the wooden board 7 whose front end is to be cut next by the first transport device 9 is carried into the first support table 3 side, the above-described operation is repeated, and the front and rear ends of the wooden board 7 are repeated. Then, the scarf surfaces 7a are respectively cut and formed.

In this embodiment, the cutting chips 7b discharged simultaneously when the scarf surface 7a is cut and formed at the front end and the rear end of the wooden board 7 are cut into two first and second circular sawing machines 33.
It can be finely pulverized into wood chips by the pulverizing sawing machine 35 laminated between a and 33b to facilitate vacuum suction. Also,
The cutting saw member 31 is arranged such that the first and second circular saw machines 33a and 33b corresponding to the lower corner of the first support 3 in the transport direction and the upper corner of the second support 5 in the transport direction are brought close to each other. In this state, the scarf surface 7a can be accurately ruled by cutting while moving in the transport orthogonal direction.

Embodiment 2 FIG. 6 is a side view showing a modified embodiment of the cutting apparatus, FIG. 7 is a side view showing a cutting state of a front end, and FIG. 8 is a side view showing a cutting state of a rear end.

In the cutting device 51 of this embodiment, the first support table 3 and the second support table 5 are provided with an interval between their respective support surfaces in accordance with the inclination angle of the cutting saw member 31 with respect to the vertical direction. Is located at the lower corner of the first support base 3 in the transport direction, and the second circular saw 33 is located above.
b is directly attached to the cutting electric motor 29 to which the cutting saw member 31 is attached on the horizontal movable body 17 arranged in a positional relationship that is simultaneously close to the upper hand corner of the second support table 5 in the transport direction. It is configured to be immovable in the vertical direction.

Further, since the first and second support bases 3 and 5 are arranged in the above-described relationship, the first and second transfer units 9.1 are provided.
Since there is a difference in height between the first and second transfer surfaces, a guide for introducing and guiding the wooden board 7 transferred from the first transfer device 9 to the lower side of the second support table 5 above the upper side of the second support table 5 in the transfer direction. The member 5a is provided in a non-interfering state with the moving cutting saw member 31.

The other members are the same as those described in the first embodiment, and the same reference numerals are used in FIG. 6 to omit the detailed description.

In the same manner as in the first embodiment, the horizontal movable body 17 is moved from the original position in the direction perpendicular to the direction of conveyance with the front end of the wooden board 7 supported on the first support table 3 with the conveyance of the first conveyance device 9. The front end of the wooden board 7 is cut at an angle corresponding to the inclination angle of the cutting saw member 31 by the cutting saw member 31 which rotates by driving the cutting electric motor 29 while moving toward the other side of the scarf. The surface 7a is formed. (See Fig. 7)

At this time, the lower first circular saw 33a of the cutting saw member 31 with respect to the lower corner of the first support 3 in the transport direction and the upper circular corner of the second support 5 in the transport direction. The cutting saw member 31 is moved in the transport orthogonal direction in a state where the upper second circular saw machines 33b are close to each other.

When the cutting of the front end portion of the wooden board 7 by the cutting saw member 31 is completed, the first and second transporting devices 9 and 11 are transported and driven to transport the wooden board 7 on the first transporting device 9 in the second transporting mode. It is transferred onto the device 11 and its rear end is positioned on the lower surface of the second support 5. At this time, the first transfer device 9
There is a difference in height between the transfer surfaces of the second transfer device 11 and the second transfer device 11. However, it is possible to introduce the wood plate 7 so as to be positioned on the second transfer device 11 by sliding the front end portion of the wood plate 7 with the guide member 5a. it can.

Next, the wooden board 7 whose upper surface is supported on the lower surface of the second support table 5 by the cutting saw member 31 which rotates while moving the horizontal movable body 17 from the other side in the direction perpendicular to the conveyance direction to the original position side. Is cut at an angle corresponding to the inclination angle of the cutting saw member 31 to form a scarf surface 7a. (See Fig. 8)

In the present embodiment, unlike the first embodiment, when cutting the rear end of the wooden board 7, the front end of the wooden board 7 on which the scarf surface 7 a is to be formed next is not supported on the first support 3. It is necessary.

The cutting and pulverizing action at the time of cutting the front end and the rear end of the wooden board 7 is the same as that of the first embodiment, so that the detailed explanation is omitted.

This embodiment is different from the first embodiment in that the cutting saw member 3 is used for cutting the front end and the rear end of the wooden board 7.
The scarf surface 7a can be formed without selectively moving the head 1 in the vertical direction.

The above description has been made with reference to the first and second transfer devices 9.1.
1, the wooden board 7 is conveyed in the direction orthogonal to the longitudinal direction of the first and second support bases 3 and 5, respectively, so that the front end of the wooden board 7 is on the first support base 3 and the rear end is the second support base. The scarf surface 7a is formed by supporting each of the support tables 5, but the wooden board 7 is conveyed in a direction coinciding with the longitudinal direction of the first and second support tables 3.5, and the front end thereof is moved to the first support table 3. The upper end and the rear end may be supported on the second support 5 in the above-described relationship.

In the above description, a scarf surface 7a having a predetermined angle inclined upward from the lower side to the upper side in the transport direction is provided at the front end of the wooden board 7 and downward from the upper side to the lower side in the transport direction at the rear end. Scarf surface 7a with a predetermined angle to be inclined
Are formed respectively, but a cutting device that forms a scarf surface inclined in the opposite direction to the above at the front end and the rear end may be used.

9 and 10 (FIGS. 9 and 10 show a cutting device having a configuration based on the first embodiment, but the same applies to the structure of the cutting device according to the second embodiment, and illustration thereof is omitted. ), The first support 3 supports the upper surface of the front end portion of the wooden board 7 and the second support 5 supports the lower surface of the rear end portion. The cutting saw member 31 is attached by disposing the rotating shaft of the cutting electric motor 29 with the upper part inclined at a predetermined angle toward the first support base 3, opposite to the first and second embodiments.

Then, with the cutting saw member 31 being moved upward by the vertical operating member 27, the cutting saw member 31 is moved in the direction perpendicular to the direction of conveyance, and the circular sawing machine 33b located above the cutting saw member 31 causes the first cutting operation.
The front end of the wooden board 7 supported by the support 3 is cut to form a scarf surface 7a. Next, the vertical operating member 27 is moved backward to move the cutting blade member 31 downward, and then moves in the opposite direction to the above, and is moved to the second support table 5 by the circular saw 33a positioned below the cutting saw member 31. The rear end of the supported wooden board 7 is cut to form a scarf surface 7a.

[0057]

According to the present invention, it is possible to pulverize the cutting waste discharged together with the cutting by the circular sawing machine and to facilitate the collection. Further, it is possible to efficiently collect the cutting debris and prevent the cutting debris from adhering to the support base or the like, thereby deteriorating the cutting accuracy of the scarf surface. Further, the cutting saw member is constituted by providing a crushing sawing machine between two circular sawing machines, and the rotating shaft is provided so as to be inclined according to the inclination angle of the scarf surface. When cutting a part, two circular saws are required because each end is dedicated, but a more expensive grinding saw compared to a circular saw can also be used when cutting both ends. The cost of the apparatus can be reduced.

[Brief description of the drawings]

FIG. 1 is a perspective view of an entire cutting apparatus.

FIG. 2 is a side view from the direction of arrow II in FIG. 1;

FIG. 3 is an enlarged perspective view showing a main part of the cutting device.

FIG. 4 is a side view showing a cutting state of a front end of a wooden board.

FIG. 5 is a side view showing a cut state of a rear end portion of the wooden board.

FIG. 6 is a side view showing a modified embodiment of the cutting device.

FIG. 7 is a side view showing a cutting state of a front end.

FIG. 8 is a side view showing a cut state of a rear end portion.

FIG. 9 is a side view showing a modified embodiment.

FIG. 10 is a side view showing a modified embodiment.

[Explanation of symbols]

1-cutting device, 3-first support, 5-second support, 7-
Wood board material, 7a-scarf surface, 7b-cut waste, 9-first
Transfer device, 11-second transfer device, 17-horizontal movable body, 1
9-Electric motor forming part of moving mechanism, 21-Feed screw forming part of moving mechanism, 25-vertical movable body, 2
7-vertical operating member, 29-cutting electric motor as rotary drive member, 31-cut saw member, 33a-first circular saw machine,
33b-second circular sawing machine, 35-crushing sawing machine

Claims (5)

[Claims] 1. A first and a second support base extending in parallel at a predetermined interval, and the wooden boards supported by the first and second support bases are parallel to each other, and the axis is defined between the first and the second support bases. A rotary drive member having a rotation axis inclined at a predetermined angle with respect to the wooden board supported in parallel, and being rotated in a fixed direction; and two circular saws attached to the rotation axis of the rotary drive member A cutting saw member provided with a crushing sawing machine between the boards, a moving mechanism for moving the cutting saw member along the first and second supports, a transport device capable of stopping traveling, and a first support by the transport device. On the other hand, the front end of the wooden board is carried in and stopped so that the front end is supported with the front end slightly protruding toward the second support base, and then the rotary drive member is moved along the first and second support bases. One-way movement, and then the rear end of the wooden board is The transport device is carried in and stopped so that the end is slightly protruded toward the first support table side and stopped, and then the rotation driving member is moved one way along the first and second support tables in the reverse direction. And a wood board cutting device for controlling a moving mechanism. 2. The apparatus according to claim 1, wherein the transporting device transports the wooden board in a direction orthogonal to the extending direction of the first and second support bases, and causes the first support base to support the front end, and the second support base. A wood board cutting device that allows the rear end to be supported. 3. The transporting device according to claim 1, wherein the transporting device transports the wooden board in a direction coinciding with a direction in which the first and second support bases extend, and causes the first support base to support the front end portion and the second support base. A wood board cutting device that allows the rear end to be supported. 4. A cutting device according to claim 1, wherein the first and second support bases are provided at positions where the wooden board is supported on the same horizontal plane, and the rotary driving member to which the cutting saw member is attached is moved in the up-down direction to cut. An apparatus for cutting a wooden board in which a saw member can be selectively brought close to a first or second support base. 5. A cutting saw member according to claim 1, wherein one of the circular sawing machines is a first supporting base, and the other is a second supporting base. A wooden board cutting device arranged with a height difference on the transport surface so as to be close to the same time.