JP2002331505A - Method and system for timber-conversion of lamina for laminated timber - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a method and a system for timber-conversion of a lamina for a laminated timber wherein a lamina for laminated timber and a small piece for forming the lamina can be automatically and in a great amount formed by correcting a direction of a flat plate-like timber and a yield is improved by successively changing an interval of rotary cutting edges. SOLUTION: For the method for timber-conversion of the lamina for the laminated timber, a direction of the flat plate-like timber 11 is changed by using the system for timber-conversion 10 having measuring means 17 and 17a capable of automatically measuring coordinates positions of a width direction on a timber front side of the flat plate-like timber 11; positioning means 19 and 19a for correcting a fiber direction of the flat plate-like timber and a carrying direction of a longitudinal carrying means 16 parallel to each other based on the coordinates positions; a gang edge 24 capable of cutting the flat-plate like timber 11 by automatically changing a clearance of rotary cutting edges 23 of both outsides abutting against the flat-plate like timber 11; and a control part 18a for controlling the abovementioned whole, the lamina 12 for the laminated timber is cut out and the small pieces 13 and 14 for forming the lamina are cut out.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and a system for cutting wood for laminated lamina, which is cut out of a log and is used as a laminated wood.

[0002]

2. Description of the Related Art Conventionally, building materials have been cut out from cylindrical logs, so that waste materials have always been generated.
In order to reduce the amount of this waste material and improve the yield, it was necessary to devise a method of harvesting wood. For this reason, complicated log cutting for cutting log materials in the vertical, horizontal and diagonal directions is performed, and a predetermined amount of a predetermined material is taken out. FIG.
As shown in (A), when forming a laminated wood lamina 80 having a predetermined width CU1 from a plate-like material 87 cut to a predetermined thickness, for example, a gang edge having four rotary cutting blades 82 to 85 is used. A jar 86 was used. By the gang edger 86, the lamina forming small pieces 81 of a predetermined width DU1 smaller than the predetermined width CU1 are provided on both sides of the laminated wood lamina 80.
Was formed at the same time. A plurality of lamina forming pieces 81
Can be formed into a recycled plate-like material by bonding in the width direction, and can be cut to form a recycled lamina material. Since the lamina forming piece 81 is formed, the amount of waste material generated can be reduced and the yield can be improved. In addition, the plate-like material 87 had been cut after performing manual alignment.

[0003]

However, in the above-mentioned conventional method for removing the laminated wood for laminated timber, since the interval between the rotary cutting blades 82 to 85 of the gang edger 86 is adjusted by the spacer, fine adjustment can be performed. In addition, since it takes a long time, it is often operated at regular intervals.
Therefore, as shown in FIG. 6B, when the wide plate-like member 88 is used, a flat plate portion 92 that can be removed still remains outside the lamina forming small piece 90, so that waste is increased. Also, as shown in FIG. 6C, the narrow plate-like material 89 is formed.
When laminating is used, the lamina forming small piece 91 is
Therefore, a rectangular plate could not be formed even if they were bonded together, resulting in waste material. In addition, it was difficult to improve the yield due to the generation of this waste material. Further, as shown in FIG. 6 (A), the width of the plate-like material 87 is smaller in the width direction of the plate-like material 87 because the width at the distal end (front side) is smaller than the width at the base opening (base side). If the side edge is moved to one side in the width direction of the carrier of the gang edger 86 for positioning, the plate is cut diagonally with respect to the fiber direction of the plate-like material 87, so that the quality of the laminated wood is not uniform. Was. In addition, when the fiber direction is manually adjusted, an error is large because the adjustment is performed in the unit of a scale, and furthermore, it takes time to perform the alignment. The present invention has been made in view of such circumstances, it is possible to accurately correct the orientation of a flat plate-like material, to automatically and mass-produce lamina for laminated wood and small pieces for lamina formation, and It is an object of the present invention to provide a method and a system for harvesting lamina for laminated wood, which can improve the yield by sequentially changing the interval between the rotary cutting blades.

[0004]

According to the present invention, there is provided a method for removing a lamina for laminated timber according to the present invention, comprising the steps of: cutting a log from a flat plate obtained by cutting a log in parallel with a predetermined thickness in a longitudinal direction; c) A method of removing the laminated wood for laminated timber, wherein the coordinate positions (a1, a2), (b1, b2) in the width direction of the cut surface of the wood surface on both ends in the longitudinal direction of the plate-shaped material.
Measuring each of the coordinate positions by an automatically controlled sensor unit, and the coordinate positions (a1, a2), (b)
1, an alignment step of changing the orientation of the plate-like material using the measurement data of b2) such that the fiber direction of the plate-like material substantially matches the feed direction of the plate-like material;
At the same time as cutting out the laminated wood lamina having a predetermined width (c) from the aligned plate-shaped material using a gang edger having a plurality of rotary cutting blades arranged side by side, a surplus plate calculated in advance is used. When the width (a2-a1-c) is equal to or larger than the predetermined width (d) of the lamina forming piece, a cutting step of cutting out the laminar forming piece having the predetermined width (d) from the surplus is provided. Note that d <c ≦ (a2-a1) ≦ (b2
-B1), a2> a1, and b2> b1.

[0005] The log is formed in a substantially frusto-conical shape in which the diameter of the end is smaller than the diameter of the base. Further, the flat material obtained by cutting the log material in the longitudinal direction is formed in a trapezoidal shape with a slightly reduced end end. Further, the cross section of the flat material is formed in a substantially trapezoidal shape in which both sides are arcuate. Coordinate positions (a1, a
2) is the measurement data on the distal end side, and the coordinate positions (b1, b2) are the measurement data on the original entrance side. The fiber direction of the flat material refers to, for example, the direction of the center line of the flat material, that is, the direction substantially the same as the axial direction of the log material. To make the fiber direction of the flat material substantially coincide with the feed direction of the flat material, for example,
One end of the flat material in the longitudinal direction is pressed in the width direction and turned to be parallel to each other. It is also possible to move the flat material in the width direction with both longitudinal ends sandwiched from above and below. Since the cutting is performed after the fiber direction and the feeding direction of the flat material are made parallel, the cutting direction can be made to match the fiber direction, and the quality of the laminated wood lamina formed can be improved. In addition, since the excess of the width of the laminating lamina for the flat plate-like material is used as small lamina forming pieces having a rectangular cross section, the amount of waste material is reduced, the yield is improved, and the material is effectively used. Can be. With this configuration, each step from the loading of the flat plate material to the formation of the laminated-lamina lamina is automatically performed, and the productivity can be improved.

Here, when the lamina for laminated wood and the lamina forming pieces can be formed simultaneously from the flat plate-like material,
In the cutting step, the positions of the rotary cutting blades on both outer sides of the gang edger that abut on the flat plate material are respectively adjusted to both sides of the cut surface of the front end of the flat plate material. It is also possible to cut the shaped material and form the laminated lamina and the lamina forming pieces at the same time. The rotary cutting blades on both outer sides are, for example, the rotary cutting blades on both outer sides of the three rotary cutting blades when three of the rotary cutting blades contact the flat plate material. Refers to a blade. Since the positions of the rotating cutting blades on both outer sides are adjusted to both sides of the cut end face of the front side of the flat material,
The lamina forming small pieces can be formed widely, and the yield can be improved by using the material without waste.

The effective width (a2-a) of the flat material is
The remaining value (w) obtained by subtracting the predetermined width (c) of the laminated wood lamina from 1) is the minimum set width (d) of the lamina forming piece.
_min ), the lamina forming pieces are formed on both sides of the laminated wood lamina, and the remaining value (w) is smaller than twice the minimum set width (d _min );
When the width is equal to or more than the minimum set width (d _min ), it may be formed on one side of the laminated wood lamina. For example, when four rotating cutting blades of a gang edger are used, a plate-shaped material can be cut into a maximum of five parts.
In this case, by forming the laminated-lamina lamina at the center, the fiber direction of the laminated-lamina lamina can be symmetrically arranged on both sides in the width direction, and the quality of the product can be improved. In addition, when the effective width of the plate-shaped material is narrow, if the lamina forming small pieces are formed two by two, the width of the lamina forming small pieces may be too narrow to the extent that it is difficult to process and use. In this method, the number of rotary cutting blades to be brought into contact with the gang edger is three, the flat plate is divided into four, and one lamina forming piece can be omitted. With such a configuration, the lamina forming pieces can be formed in a size that is easy to handle, and the strength can be made constant. Quality can be improved.

Here, the change amounts (f1, f2) of the both ends when changing the direction of the flat material in the positioning step are determined by the coordinate positions (a1, a2), (b).
1, b2) and the center line coordinate position (e) in the feed direction of the plate-shaped material can be calculated based on the following equation. f1 = e- (a2-a1) / 2 f2 = e- (b2-b1) / 2 The center line coordinate position (e) in the feeding direction of the flat material is the coordinate in the width direction, and the flat material is moved in the longitudinal direction. Pass through the center of the conveying means in the width direction. The change amount f1 of the distal end is an amount for adjusting the center position in the width direction of the distal end of the trapezoidal flat material to the center position in the width direction of the original end in plan view. ((B2-b1)-(a2-a1)) / 2 is obtained by adding the same change amount f2 = e- (b2-b1) / 2 as that of the end portion on the base opening side. The change amount f2 of the end of the flat material at the base opening is
This is an amount necessary for adjusting the center position in the width direction of the original mouth side end to the center line coordinate position. With this configuration, not only is the direction of the plate-shaped material coincident with the transport direction, but also the center line coordinate position (e) in the feed direction, so that the position of the rotary cutting blade of the gang edger is set at the center line coordinate position (e). )
, And passes through the center of the conveying means, so that the balance is improved and the apparatus can be operated stably. Furthermore, even if the flat material is carried in a slightly bent state and the dimensions are measured, the above two equations can be used, and the direction can be automatically corrected.

In accordance with the present invention, there is provided a laminating system for laminating wood for laminated timber according to the present invention, comprising: a transverse feed means for intermittently flat-transporting a plurality of flat plate-like members with their wooden surfaces facing upward; Measuring means provided at the final transport position of the traverse transport means, which can automatically measure the coordinate position in the width direction of the flat surface of the flat material, and the flat material whose coordinate position is measured, A longitudinal feed conveying means for conveying the sheet material one by one in a longitudinal direction, provided on a downstream side of the longitudinal feed conveying means, and based on the coordinate position, a direction of a fiber direction of the sheet material and the longitudinal feed. Positioning means for correcting the conveying direction of the conveying means in parallel, and three or more rotary cutting blades, the distance between the two outer rotating cutting blades abutting on the plate-shaped material is automatically changed, the flat plate-shaped Gang edgers that can cut materials and these A control unit for controlling, the control unit calculates a change amount of the direction of the flat plate material from the coordinate position measured by the measurement means, and transmits the change amount to the positioning means, A calculating means for transmitting the coordinate position to the gang edger;

The measuring means includes, for example, a distance sensor for detecting light from a photoelectric tube by a sensor, a means for performing image processing on data photographed by a camera for measurement, and a method for measuring light from a large number of linearly arranged light sources. A line sensor that irradiates light and detects the reflected light, or a type that detects reflection or transmission of a laser beam can be used. A gang edger is a circular saw that attaches three or more circular saws to one or more main spindles and feeds the work on the table by power at the same time as several saws. Also called a jar. Here, the gang edger may be provided with a planar device for cutting the upper and lower surfaces of a flat plate material. Since it has positioning means,
Cutting can be performed after matching the direction of the center line position of the plate-shaped material with the conveying direction, and the quality and strength of the laminated material manufactured by making the fiber directions of the laminated-lamina lamina parallel can be improved.

Since the gang edger can quickly change the interval between the rotary cutting blades in accordance with the effective width of a flat material having a different effective width, the gang edger utilizes the flat material to the full effective width. As a result, the amount of waste material can be reduced, and the yield can be improved. Further, since the control unit is provided, the entire operation can be automated, and the productivity of the apparatus can be improved. Further, a vertically movable roller conveyor is provided in the vertical transporting means, and an upstream end of the roller conveyor is arranged at the final transport position of the horizontal transporting means, and the roller conveyor is vertically moved. It is also possible to transfer a plate-like material from the horizontal transport means to the vertical transport means. With such a configuration, it is possible to transfer the plate-shaped material while keeping the horizontal displacement thereof to a minimum.

[0012] Further, the measuring means is provided at at least two places so that both ends in the longitudinal direction of the plate-like material can be measured,
The sensor section is moved in the width direction of the cut surface of the wood surface side of the flat material, the cut surface of the wood surface is detected by a difference in reflectance, and the width of the cut surface of the wood surface side is determined by the moving distance from the origin of the sensor section. The coordinate position of both ends in the direction is measured, and the positioning means presses both longitudinal sides of the flat material to move the flat material in the width direction. It is also possible to provide. Measuring means can be provided at three or more locations to improve accuracy. Since the measurement is performed in a non-contact manner, the end on the wooden surface side can be accurately detected. In addition, it is also possible to measure the edge on the back side of the tree by the measuring means. The positioning means can be moved by sandwiching both ends of the flat material in the thickness direction, can also be moved by sandwiching in the width direction, and can be moved by pressing from one side in the width direction. It is possible.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, embodiments of the present invention will be described with reference to the accompanying drawings to provide an understanding of the present invention. As shown in FIG. 1 and FIG. 5, a method for removing wood of lamina for laminated wood according to one embodiment of the present invention includes:
A method of cutting a laminated laminated lamina 12 and lamina-forming small pieces 13 and 14 from a plurality of flat plates 11 obtained by cutting a log 25a (see FIG. 5B) in parallel with a predetermined thickness in a longitudinal direction. This is performed by using the laminating system 10 for laminating timber according to the embodiment of the present invention shown in FIG. The details will be described below. As shown in FIG. 2, the wood picking system 10 is a loading conveyor that is an example of a transverse feeder that intermittently flat-transports a plurality of flat plates 11 with the wooden surface facing upward with a gap therebetween in the width direction. 15 and a flat material 1 provided at the final transport position of the carry-in conveyor 15.
It has measuring means 17 and 17a which can automatically measure the coordinate position in the width direction on the side of one wooden surface. In addition, the wood removal system 10 includes a conveyor device 16 which is an example of a vertical feed conveying unit that conveys the plate-shaped members 11 whose coordinate positions are measured one by one in the longitudinal direction (longitudinal direction) of the plate-shaped members 11, and a conveyor. Positioning means 19 and 19a are provided downstream of the apparatus 16 and correct the fiber direction of the flat plate 11 and the conveying direction of the conveyor apparatus 16 in parallel based on the coordinate position. 2 and FIG.
As shown in the figure, the rotary cutting blades 20 to 23 are provided, and the flat material 11 can be cut by automatically changing the distance between the rotary cutting blades 20 and 23 on both outer sides that come into contact with the flat material 11. Gang edger 24 and control unit 1 for controlling the whole
8a. The control unit 18a includes the measuring unit 17,
Calculation of calculating the change amounts f1 and f2 of the direction of the flat plate member 11 from the coordinate positions measured at 17a, transmitting the change amounts f1 and f2 to the positioning means 19 and 19a, and transmitting the coordinate positions to the gang edger 24. Means 18 are provided. In addition, the wood removal system 10 is provided on the downstream side of the gang edger 24 and has a temporary placing table 51 on which the formed laminated wood lamina 12 and the lamina forming small pieces 13 and 14 are placed. The details will be described below.

First, the flat member 11 will be described. As shown in FIGS. 1 to 3 and FIGS. 5 (A) and 5 (B), the flat material 11 is obtained by cutting the log material 25a into a plate shape. Are formed in a trapezoidal shape in a substantially planar view, which is gradually reduced. Further, the cross-sectional shape is not rectangular, but is formed in a substantially trapezoidal shape in which the outer peripheral portion of the log material 25a is on both sides in an arc shape. Flat material 11
Is processed by arranging the surface on the back side of the tree (wide surface) on the lower side and arranging the surface on the front side of the tree (narrow surface) on the upper side. Hereinafter, the width of the surface on the wooden surface side will be described as an effective width. In particular, the coordinate positions at the time of measurement by the measuring means 17 and 17a are coordinate positions (a1, a2), respectively, in the width direction of the wooden surface side at both ends on the distal end side and the original opening side of the plate-shaped material 11.
Description will be given as coordinate positions (b1, b2). The width d of the small piece for lamina formation <the width c of the lamina for laminated wood ≦ the flat plate 1
1, the effective width (a2-a1) ≦ the width (b2-b1) of the front side of the wooden surface of the flat plate-shaped material, a2> a1, and b2> b1.
Further, in the present embodiment, the terminal side is used such that it is disposed downstream of the conveyor device 16.

As shown in FIGS. 1 and 5, a rectangular plate is formed from a single flat plate material 11 within a range of an effective width (a2-a1) excluding the inclined portions 25 having widths g1 and g2 on both sides. can do. Here, when the predetermined width of the laminated wood lamina 12 for forming a laminated wood (not shown) is c, the flat material 11 has an effective width−a predetermined width, that is, a remaining value (w) =
It includes a rectangular section having a width of (a2-a1) -c. From this rectangular cross-section, a plurality of lamina forming pieces that are insufficient for the predetermined width c are cut out and bonded in the width direction to form a regenerated plate-like body (not shown), which is cut again to the predetermined width c to obtain another piece. Laminates for glulam can be formed.
The width of the lamina forming piece is arbitrary, but a minimum setting width (d _min ) is defined for securing strength and facilitating the bonding operation, and a narrower width is discarded. FIG.
As shown in (B), the remaining value (w) obtained by subtracting the predetermined width (c) of the laminated wood lamina 12 from the effective width (a2-a1) is:
When the width is at least twice the minimum setting width (d _min ) of the lamina forming pieces, the lamina forming pieces 13 and 14 having the width (d) are used.
Are formed on both sides of the laminated wood lamina 12. With such a configuration, the laminated wood lamina 12 is arranged at the center in the width direction of the flat plate-shaped material 11, so that the fiber directions of the laminated wood lamina 12 can be arranged symmetrically and deformation such as bending can be suppressed.

Next, the carry-in conveyor 15 will be described with reference to FIGS. The carry-in conveyor 15 has endless tracks 29 and 30 composed of chains and sprockets that support both ends of the flat plate 11, respectively, and intermittently transfers the flat plate 11 placed on the upper side in the width direction. The endless track 29 or 30 on one side is close to the endless track 30 or 29 or the endless track 30 according to the length of the flat plate material to be conveyed.
Or 29 can be moved in a direction away from 29. On the endless tracks 29 and 30 on both sides, the conveyed flat material 11
A pin-type stopper 28 which can be hooked and releasable is provided at the downstream end of the plate member 11, and the flat plate 11 is arranged and transported with the downstream end perpendicular to the transport direction. In addition, the end of each of the plate members 11 is arranged on one endless track 29 side.

Next, with reference to FIGS. 2 and 3, the flat sheet material 11 provided above the overlapping portion of the carry-in conveyor 15 and the conveyor device 16 and conveyed to the downstream end of the carry-in conveyor 15 will be described. The sensor unit 34 is provided at at least two locations so as to be able to measure both ends in the longitudinal direction of the plate member, and the sensor unit 34 moves the cut surface of the flat surface of the plate-shaped material 11 in the width direction, and detects the cut surface of the wood surface by the difference in reflectance. The measuring means 17 and 17a for measuring the coordinate positions of both ends in the width direction of the cut surface on the wooden surface side based on the moving distance from the origin of the portion 34 will be described. The measuring means 17, 17 a are, for example, at positions above the endless tracks 29, 30, respectively, and in the moving direction of the endless tracks 29, 30, that is, the moving guide member 33 arranged in the width direction of the flat plate 11, A sensor unit 34, which is movably arranged below the guide member 33 along the movement guide member 33 and incorporates a light emitter and a light receiver (not shown), and a lateral unit that moves the sensor unit 34 in the width direction of the flat plate 11. Feeding means. When the sensor unit 34 detects the cut surface of the flat surface of the flat plate 11 directly under the wooden surface, and moves by the traverse means, the width of the cut surface of the flat plate 11 can be detected from the moving distance of the sensor unit 34. . This moving distance can be measured by converting it into an electric signal by a rotary encoder or the like provided in the traversing means. FIG.
(A), (B), as shown in FIG.
When 1 is measured from above, the portion of the effective width (a2-a1) is arranged substantially horizontally and has a higher reflectance than the inclined portion 25, so that the coordinate position (a1, a2) can be reliably detected. Can be. In addition, as a method of measuring the width of the plate-shaped material 11, a laser sensor may be used to obtain a cross-sectional profile of the plate-shaped material 11 and to detect the coordinates of the cut surface on the wood surface side.

The measuring means 17 disposed on the downstream side of the flat material 11 is moved toward or away from the endless track 30 in accordance with the position of the end of the flat material 11 along with the endless track 29. The coordinate position can be reliably measured by easily following flat plates having different lengths. The measuring means 17 and 17a operate before the plate-shaped material 11 is transferred to the roller 32, and the coordinate positions (a1, a2), (b)
1, b2), and coordinate positions on the back side of the tree (a3, a4),
(B3, b4) are measured respectively.

Next, referring to FIG. 2 and FIG.
The conveyor device 16 for transferring the transfer No. 1 will be described. The conveyor device 16 has a roller conveyor 31 on the upstream side and a bar conveyor 35 on the downstream side, and the upstream end of the roller conveyor 31 is overlapped with the final conveying position of the carry-in conveyor 15 and arranged orthogonally. ing. Roller conveyor 31
Raises and lowers the rollers 32 so that the transport surface including the upper end position of each roller 32 is lower than the transport surface of the carry-in conveyor 15,
Alternatively, it can be switched to the upper side, and the flat plate 11 can be transferred. When transferring the flat plate 11, the flat plate 11 is first transferred to the downstream end of the carry-in conveyor 15 with the roller 32 lowered. Next, each roller 32
Is raised, and the flat material 11 is supported by the rollers 32 and separated from the carry-in conveyor 15. Next, the plate conveyor 11 is conveyed to the downstream side (one side) by rotating and driving the roller conveyor 31. In this way, the flat plate 11 can be transferred. After measuring the coordinate position, the plate-shaped material 11 is transferred to the roller conveyor 31 and moves downstream, and is transferred to the bar conveyor 35.

Next, the operation means 18 provided in the control unit 18a will be described. As shown in FIG. 1A, the calculating means 18 is connected to the measuring means 17 and 17a, and the data measured by the measuring means 17 and 17a, that is, the coordinate positions (a1, a2) and (b1, b2) and the flat plate From the center line coordinate position (e) of the shape member 11 in the feed direction, the change amounts (f1, f2) of the end portions on the rear end side and the original end side are calculated based on the following equation. f1 = e- (a2-a1) / 2 (1) f2 = e- (b2-b1) / 2 (2) With such a configuration, the direction and the center of the plate-shaped material 11 are obtained. The position change amount can be accurately and automatically calculated. For example, a sequencer or a computer can be used as the arithmetic unit 18.

Next, referring to FIGS. 1B and 2, there is provided a pressing and moving means such as a screw jack capable of pressing both ends (parts) of the flat plate 11 laterally by a predetermined distance. The positioning means 19, 19a will be described. Positioning means 19,
Reference numerals 19a each include a rod member that is opposed to both sides in the width direction of the bar conveyor 35, protrudes toward the center side, and can press the plate-shaped material 11, and is disposed below the bar conveyor 35 and at an upstream end. Further, positioning means 19,
19a receives the data of the change amount (f1, f2) from the arithmetic means 18 and contacts one side of both ends in the width direction of both sides in the longitudinal direction of the plate-like material 11 to change the determined change amount ( f1 and f2) are pressed and moved in the width direction to correct the fiber direction of the flat plate 11 and the transport direction of the conveyor device 16 in parallel, and further, the center of the flat plate 11 in the width direction and the conveyor device. Sixteen central positions in the width direction can be substantially matched.

In this embodiment, since the positioning means 19 and 19a are configured to press the edge of the flat plate 11 on the back side of the tree, the coordinate positions (a3, a4 ) And (b3, b4), the coordinate position (a1) of the positioning means 19, 19a, the tip position (QL1, QL2) of the rod member on the (b1) side, or the coordinate position (a2), (b2) Of the rod member on the side (QL1
', QL2'). For example, e> (a2-a
In the case of 1) / 2, that is, when the center position of the end portion on the end side of the flat plate member 11 is on the coordinate position (a1) side from the center in the width direction of the bar conveyor 35, the positioning means 19 on the end side.
The tip position (QL) of the rod member on the coordinate position (a1)
1) is extended to QL1 = f1− (a1−a3) (3), and when e ≦ (a2−a1) / 2, the distal end position of the rod member on the opposite side (QL1 ′) Is extended to QL1 ′ = f1 + (a4-a2) (4).

Also, when e> (b2-b1) / 2, that is, when the center position of the base end of the flat plate member 11 is closer to the coordinate position (b1) than the center in the width direction of the bar conveyor 35. Is the coordinate position (b1) of the positioning means 19 on the original mouth side
The tip position (QL2) of the rod member on the side is extended to QL2 = f2- (b1-b3) (5), and when e ≦ (b2-b1) / 2, the rod on the opposite side is extended. Extend the tip position (QL2 ′) of the member to QL2 ′ = f2 + (b4-b2) (6). Tip position (QL1, QL2), (QL1
', QL2') may be calculated by the calculating means 18 or may be calculated by the positioning means 19, 19a.

Next, with reference to FIGS. 1C, 4A and 4B, four rotary cutting blades 20 to 23 are provided, measurement data is received from the calculating means 18, and the coordinate position ( a1, a
In accordance with 2), the interval between the rotary cutting blades 20 and 23 on both outer sides abutting on the flat plate 11 is automatically changed so that the flat plate 11
Will be described. Rotary cutting blades 20 to 23 of gang edger 24
Can move independently of each other in a direction orthogonal to the transport direction of the conveyor device 16, and can move two times in a direction orthogonal to the transport direction.
They are arranged symmetrically one by one. In the direction orthogonal to the transport direction of the conveyor device 16 of the gang edger 24, the support shafts 37 and 38 are arranged to face each other with their axes substantially aligned and with a gap. Rotary cutting blades 21 and 22 are rotatably disposed at the distal ends of the support shafts 37 and 38, respectively. Support cylinders 41 and 42 for supporting the outer rotary cutting blades 20 and 23, respectively, are externally mounted on the support shafts 37 and 38 so as to be rotatable together with the support shafts 37 and 38, respectively.

Servo motors 47 to 50 having screw shafts 43 to 46 parallel to the support shafts 37 and 38 are arranged on both sides of the support shafts 37 and 38, respectively.
Are connected to bearings 39, 40 extrapolated to the support shafts 37, 38 and bearings 41a, 42a extrapolated to the support cylinders 41, 42, respectively. By driving the servo motors 47 to 50, the respective screw shafts 43 to 46 are rotated,
9, 40, 41a, 42a, the support shafts 37, 38 and the respective rotary cutting blades 21, 22, 20,
23 can be independently moved in the width direction of the flat plate 11. The support shafts 37, 38 are provided with bearings 39,
40 and can be integrally rotated. Pulleys 56 and 57 are provided at the base ends of the support shafts 37 and 38 (farther from the transport line of the flat plate 11) via transmission shafts 54 and 55 rotatably supported by bearings 52 and 53. ing. Power is transmitted from a drive source (not shown) to the support shafts 37 and 38 via the pulleys 56 and 57 and the transmission shafts 54 and 55,
The rotary cutting blades 20 to 23 can be rotated.

Feed rollers (not shown) are provided above and below the upstream and downstream sides of the support shafts 37 and 38 to prevent the flat plate 11 from being bent during cutting. With this configuration, the cut position of the flat plate 11 can be changed quickly and easily. On the downstream side of the gang edger 24, a temporary placing table 51 is disposed, and the laminated laminated lamina 1 is formed.
2 and lamina forming pieces 13 and 14 are classified on the temporary placing table 51, respectively, and the subsequent processing is performed. on the other hand,
As shown in FIG. 5 (C), the remaining value (w ') obtained by subtracting the predetermined width c of the laminated wood lamina 12a from the effective width (a2'-a1') of the narrow flat plate member 27 is the lamina formation. less than 2 times the minimum setting the width of use pieces (d _min), and at the same time is the minimum set width (d _min) or more, the lamina forming strips 26 of width d', formed on one side of the laminated wood for laminae 12a .
At this time, the gang edger 24 automatically changes the interval between the outer rotating cutting blades 20 and 22 that abut on the flat plate member 27 in accordance with the coordinate position (a1 ′, a2 ′), and rotates the three rotating blades. The plate-shaped material 27 is cut by the cutting blades 20 to 22, but the rotary cutting blade 23 does not come into contact with the plate-shaped material 27.
With such a configuration, waste of materials can be prevented, and the yield can be improved.

Next, a description will be given of a procedure of a method for removing laminated wood for laminated wood having a rectangular cross section and a predetermined width (c) from the flat plate material 11 using the wood removing system 10. (Preparation process) First, the log material 25a is cut in parallel with a predetermined thickness in the longitudinal direction to form a plurality of plate-like materials 11, and the end side of each plate-like material 11 is arranged on the endless track 29 side. To the carry-in conveyor 15. (Coordinate Measuring Step) By the measuring means 17 and 17a, coordinate positions (a1 to a4) in the width direction of the wood surface side cut surface and the tree back side cut surface of both ends in the longitudinal direction of the flat plate material 11, (b1 to b)
4) is measured by the sensor unit 34 which is automatically controlled. Next, the flat plate material 11 is transferred from the carry-in conveyor 15 to the conveyor device 16. Then, the conveyor device 16 is operated to transfer the flat plate 11 to the downstream side.

(Positioning Step) First, the arithmetic means 18
Then, the coordinate positions (a1 to a4) in the coordinate measuring step, (b1
B4), the direction of the flat plate 11 is changed so that the fiber direction of the flat plate 11 substantially matches the feed direction of the flat plate 11. That is, the tip of the rod member on one side in the width direction of the positioning means 19, 19a is moved to the calculated tip positions (QL1, QL2), (QL1).
', QL2'), the flat material 11
Can be moved by a predetermined change amount (f1, f2). Next, the flat material 11 is transported to a predetermined position on the bar conveyor 35 by the conveyor device 16 and stopped, and the pressing and moving means is operated to operate the flat material 11.
(QL1, QL2), (QL1 ',
QL2 ') to change the direction by pressing each of them so that the fiber direction of the flat plate 11 is substantially parallel to the feeding direction of the flat plate 11. The positioning means 19 and 19a are provided on the upper and lower sides of the bar conveyor 35, respectively, so that the direction of the flat plate 11 and the positioning in the width direction can be reliably performed.

(Cutting Step) The measurement data of the coordinate positions (a1, a2) measured in the width measuring step is sent to the gang edger 24. From the aligned flat plate material 11,
Using a gang edger 24 in which a plurality of rotary cutting blades 20 to 23 are arranged side by side, a laminated wood lamina 12 having a predetermined width (c) is cut out, and at the same time, a surplus board width (a2-a1) is calculated in advance. If -c) is equal to or larger than the predetermined width (d) of the lamina forming pieces, the lamina forming pieces 13 and 14 having the predetermined width (d) are cut out from the surplus. According to the procedure described above, the laminated lamina 12 and the lamina forming piece 1
The rotary cutting blades 2 on both outer sides of the gang edger 24 abutting on the plate-shaped material 11 when both can be formed simultaneously.
After adjusting the positions of 0 and 23 to both sides of the cut end surface of the wooden surface side of the end of the flat plate 11, the flat plate 11 is cut, and the laminated wood lamina 12 and the lamina forming small pieces 13 and 14 are cut.
Are simultaneously formed.

The rotary cutting blade 20 of the gang edger 24
Since the adjustment of the distance between the rotation cutting blades 23 to 23 is performed during the positioning by the positioning means 19 and 19a, the adjustment of the distance between the rotary cutting blades 20 to 23 does not increase the entire operation time. After the adjustment, the flat plate-shaped material 11 is cut, and a laminated lamina 12 having a predetermined width and small lamina forming pieces 13 and 14 are simultaneously formed. In the case where the flat material 27 is used,
The intervals between the rotary cutting blades 20 to 22 of the gang edger 24 are automatically adjusted, and the laminated wood lamina 12a and the lamina forming small pieces 26 are formed. Therefore, the flat material 11,
Even if 27 are mixed in, the cutting can be continuously performed without stopping the apparatus. As described above, the embodiment according to the present invention has been described, but the present invention is not limited to the above-described embodiment. Although it is carried in with a predetermined direction, it may be carried in the opposite side, or it may be carried in without defining a direction. Further, the calculating means 18
The amount of change is calculated when the pressing positions of the positioning means 19 and 19a are set to a total of four places on both sides in the width direction of the upper and downstream ends, for example, the rotation angle of the flat plate 11 is calculated. Then, it is also possible to use a rotating mechanism as the positioning means. The calculating means 18 can be constituted by a sequencer, but can also be realized by a program provided in a computer. Further, the number of the rotary cutting blades of the rotary cutting means may be three, so that only one lamina forming piece may be formed at all times. It is also possible to form two or more material laminas.

[0031]

According to the laminating method for laminating wood for laminated wood according to any one of claims 1 to 4, since the fiber direction of the flat material substantially coincides with the feed direction of the flat material, the cutting direction is set to the fiber direction. It can be made to match, and the quality of the laminated wood lamina formed can be improved. In addition, since the excess of the width of the laminating lamina for the flat plate-like material is used as small lamina forming pieces having a rectangular cross section, the amount of waste material is reduced, the yield is improved, and the material is effectively used. Can be. In addition, since it has a coordinate measuring step, a positioning step, and a cutting step, it is possible to automatically perform each step from the loading of the plate-shaped material to the formation of the laminated wood lamina, thereby improving the productivity. it can. In particular, in the method for removing lamina for laminated wood according to claim 2, since the positions of the rotary cutting blades on both sides are respectively adjusted to the coordinate positions (a1, a2), the lamina forming small pieces can be formed widely. The yield can be improved by using the material without waste.

According to the third aspect of the present invention, the lamina forming pieces are formed on both sides or one side of the laminated lamina according to the effective width, so that the width of the lamina forming pieces is reduced. If it becomes too narrow, the number of rotary cutting blades to be brought into contact with the gang edger can be three, and the lamina forming pieces can be formed into a size that is easy to handle. The quality of the reprocessed lamina for laminated wood can be improved. In the method for removing lamina for laminated timber according to the fourth aspect, the amounts of change (f1, f2) at both ends are calculated based on a predetermined formula. In addition, the position of the rotary cutting blade of the gang edger can be controlled around the center line coordinate position (e) in accordance with the center line coordinate position (e) in the feed direction. Since the vehicle passes, the balance is improved and the device can be operated stably. Furthermore, even if the flat material is carried in a slightly bent state and the dimensions are measured, the expression (1)
Equation (2) can be used, and the direction can be corrected automatically.

The laminating system for laminated wood for laminating wood according to any one of the fifth to seventh aspects is provided with the positioning means, so that the plate can be cut after the direction of the center line position and the conveying direction are matched. In addition, the quality and strength of the laminated wood manufactured by making the fiber direction of the laminated laminator parallel can be improved. In addition, the gang edger can quickly change the interval between the rotary cutting blades in accordance with the effective width of the flat material having a different effective width, so that the flat material is used to the full effective width. The amount of waste material can be reduced, and the yield can be improved. further,
Since the control unit is provided, the entire operation can be automated, and the productivity of the apparatus can be improved. In the laminating wood laminating system according to the sixth aspect of the present invention, the upstream end of the roller conveyor is arranged at the final conveying position of the lateral feeding means so as to overlap, and the roller conveyor is moved up and down to transfer the flat material. Therefore, the transfer can be performed with the horizontal displacement of the flat plate material kept to a minimum.
In the above-described laminating wood laminating system for laminated wood, the sensor unit of the measuring means is moved in the width direction of the cut surface of the wood surface on the flat material, and the cut surface of the wood surface is detected based on the difference in reflectance. Therefore, non-contact measurement can be performed, and the end on the wooden surface side can be accurately detected.

[Brief description of the drawings]

1 (A) to 1 (C) each show a state of measurement, alignment, and preparation for cutting of a flat plate used in a wood cutting system for a laminated wood lamina according to an embodiment of the present invention. FIG.

FIG. 2 is a plan view of the laminating tree harvesting system for laminated wood.

FIG. 3 is a partial cross-sectional view of a carry-in conveyor and a conveyor device of the laminating tree harvesting system for laminated wood.

FIGS. 4A and 4B are partial plan sectional views of a gang edger of the laminating system for laminated wood for laminated timber.

5 (A) to 5 (C) are explanatory views each showing the shape of a flat plate used in the laminating system for laminated wood for laminated timber.

6 (A) to 6 (C) are explanatory views each showing the shape of a flat plate-shaped member used in a conventional laminated wood laminating system for laminated wood.

[Explanation of symbols]

10: Wood removal system, 11: Flat material, 12, 12
a: Lamina for laminated wood, 13, 14: Lamina forming small pieces,
15: carry-in conveyor, 16: conveyor device, 17, 17
a: measuring means, 18: calculating means, 18a: control section, 1
9, 19a: positioning means, 20 to 23: rotary cutting blade,
24: Gang edger, 25: Inclined portion, 25a: Log material, 26: Lamina forming piece, 27: Flat material, 2
8: Pin type stopper, 29, 30: Endless track, 31:
Roller conveyor, 32: roller, 33: movement guide member, 34: sensor unit, 35: bar conveyor, 37, 3
8: support shaft, 39, 40: bearing, 41: support cylinder, 41
a: bearing, 42: support cylinder, 42a: bearing, 43 to 46:
Screw shaft, 47-50: Servo motor, 51: Temporary stand,
52, 53: bearing, 54, 55: transmission shaft, 56, 57:
Pulley

Claims (7)

[Claims] 1. A method of cutting a laminated lamina having a rectangular cross section and a predetermined width (c) from a flat material obtained by cutting a log material in parallel with a predetermined thickness in a longitudinal direction, the method comprising: A coordinate measuring step of measuring coordinate positions (a1, a2) and (b1, b2) in the width direction of the cut surface of the wooden surface on both ends in the longitudinal direction by a sensor unit which is automatically controlled; a2) using the measurement data of (b1, b2) to change the orientation of the flat material so that the fiber direction of the flat material substantially matches the feed direction of the flat material. A step of cutting out the laminated wood lamina having a predetermined width (c) from the aligned plate-shaped material using a gang edger in which a plurality of rotary cutting blades are arranged side by side, and calculating the excess in advance Minute board width (a2-a1-c) Cutting a lamina-forming piece having a predetermined width (d) from a surplus of the lamina-forming piece having a predetermined width (d) or more. Note that d <c
≦ (a2-a1) ≦ (b2-b1), a2> a1, b2
> B1. 2. The method according to claim 1, wherein said laminating material lamina and said lamina forming pieces can be formed simultaneously from said plate-like material. After adjusting the positions of the rotary cutting blades on both outer sides of the gang edger in contact with the shape material to both sides of the front end surface of the wood side cut end of the flat material,
A method for cutting lamina for laminated wood, comprising cutting the plate-shaped material and simultaneously forming the laminated wood lamina and the lamina forming pieces. 3. The method for removing wood from a laminated wood lamina according to claim 2, wherein a remaining value (w) obtained by subtracting a predetermined width (c) of the laminated wood lamina from an effective width (a2-a1) of the flat plate-like material. ) Is the minimum setting width (d) of the lamina forming piece.
_min ), the lamina forming pieces are formed on both sides of the laminated wood lamina, and the remaining value (w) is smaller than twice the minimum set width (d _min );
A method for cutting lamina for laminated wood, wherein the lamina for laminated wood is formed on one side of the lamina for laminated wood when the width is not less than the minimum set width (d _min ). 4. The method of removing lamina for laminated wood according to any one of claims 1 to 3, wherein a change amount of the both ends when changing the direction of the flat material in the positioning step ( f1, f2) are the coordinate positions (a1,
a2), (b1, b2) and a center line coordinate position (e) in the feed direction of the flat plate-like material, which is calculated based on the following equation, and a method for harvesting lamina for laminated wood. f1 = e- (a2-a1) / 2 f2 = e- (b2-b1) / 2 5. A traverse conveying means for intermittently laying and transporting a plurality of flat plate members with the wooden surface side facing upward intermittently, and a flat transporting means provided at a final transport position of the traverse transporting means. Measuring means for automatically measuring the coordinate position in the width direction of the wooden surface on the side of the wooden member; and a longitudinal feed transport for transporting the planar material whose coordinate position has been measured one by one in the vertical direction of the planar material. Means, provided on the downstream side of the vertical feed conveying means, based on the coordinate position, a positioning means for correcting the direction of the fiber direction of the flat material and the conveying direction of the vertical feed conveying means in parallel, A gang edger that includes three or more rotary cutting blades and that can automatically change the interval between the outer rotary cutting blades that abut the flat material and cut the flat material, and a control that controls these. And the control unit,
Calculating means for calculating an amount of change in the direction of the plate-shaped material from the coordinate position measured by the measuring means, transmitting the amount of change to the positioning means, and transmitting the coordinate position to the gang edger; A laminating tree harvesting system for laminated wood. 6. The laminating machine according to claim 5, wherein said longitudinally transporting means has a roller conveyor which can be moved up and down, and an upstream end of said roller conveyor is connected to said transversely transporting means. A laminating tree laminating system for laminated wood, wherein the roller conveyor is moved up and down to transfer the flat plate material from the horizontal transport unit to the vertical transport unit. 7. The laminating system for laminated wood for laminated timber according to claim 5, wherein said measuring means is provided at at least two places so as to be able to measure both longitudinal end portions of said flat plate-like material, and said sensor unit is provided with said sensor unit. The wooden surface side cut surface of the plate-shaped material is moved in the width direction, the wooden surface side cut surface is detected by a difference in reflectance, and the width direction both ends of the wooden surface side cut surface by the moving distance from the origin of the sensor unit. The coordinate position is measured, and the positioning means presses both sides in the longitudinal direction of the plate-shaped material to move the plate-shaped material in the width direction, and the four rotary cutting blades of the gang edger are provided. A laminating tree harvesting system for laminated timber.