JP5006658B2 - Sawmill method and apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a lumber method of suitably handling a variety of lumber plans and an apparatus. <P>SOLUTION: The apparatus includes a pair of first cutting blades 11 and 11 horizontally facing each other, each pair of second cutting blades 12, 12, ... vertically facing each other and being horizontally installed in parallel, and each pair of twin screw circular saw blades 13, 13, ... horizontally facing each other. Each of the circular saw blades 13 and 13 is mounted on the front face of a column 21a of a first movable frame 21 on a common base frame 25. Each of first cutting blades 11 is mounted on a second movable frame 22 on the first movable frame 21. Each of the vertical second cutting blades 12 and 12 is mounted on a third movable frame 23 at the rear face of the column 21a. <P>COPYRIGHT: (C)2008,JPO&amp;INPIT

Description

  The present invention relates to a lumbering method and an apparatus for lumbering that can efficiently lumber a board and a square bar having a predetermined size from a log wood according to a wood plan.

  Various lumber machines have been developed and put into practical use in order to efficiently lumber a standard material called a dimension lumber (Non-Patent Document 1).

  For example, a quad band saw is composed of four band saw machines, and a chipping rubber head makes a smooth surface while cutting a portion which has conventionally been a back plate with a cutter, and directly forming chips. Further, the chipper canter has cutting heads parallel to each other, it is possible to make a drum material while obtaining a chip directly from a log, combine it with a twin band saw machine to form a canter twin, and combine it with a quad band saw. In addition, the chipping edger has two opposing cutting heads and scrapes the rounds of the ear plate to make a chip.

A part of such a high-efficiency lumber machine has been developed in Japan (for example, Patent Document 1).
Atsushi Yamazaki, Canadian Forestry Machinery Exhibition and Sawmill, News from Forest Products Trial (Hokkaido Prefectural Forest Products Experiment Station), February 1993, 16-23 JP-A-11-170213

  When using such a conventional technology, each sawing machine usually adopts a one-way feeding method using a sharp chain in order to process a large amount of logs with a uniform diameter class with extremely high efficiency. There was a problem of requiring a vast factory site. In addition, when the diameter class is not uniform, such as domestically-produced lumber, it is necessary to make an optimum tree plan for each raw wood and to lumber accordingly, but each lumber machine can be a single-function machine or a bi-functional machine. There is also a problem that the production efficiency tends to be lowered on the contrary, because it cannot stay in place for a detailed plan for each log.

  Therefore, in view of the problems of the prior art, the object of the present invention is a first step of cutting while cutting left and right of wood into a chip, a second step of cutting wood while cutting up and down and left and right of wood, and grinding left and right of wood. A lumbering method that can suitably cope with various woodcutting plans by reciprocally feeding wood to a lumbering apparatus that includes a third step of splitting, and that can easily realize high production efficiency as a whole. It is to provide the device.

  The configuration of the first invention according to this application for achieving the above object (referring to the invention according to claim 1, hereinafter the same) includes the first step of cutting the left and right sides of the wood into chips to form a vertical surface. , One feed for a lumber machine that performs the second step of cutting the top / bottom / left / right of the wood into chips and forming notches including vertical and horizontal planes, and the third step of breaking the left / right of the wood. Using a material wheel, the centered wood is reciprocated an integer number of times while interposing at least one 90 ° rotation operation, and at least one of the first to third steps is selectively executed in the forward path. In the return path, the gist is that none of the first to third steps is executed, or at least one of the first to third steps is selectively executed.

  The configuration of the second invention (referring to the invention according to claim 2, the same applies hereinafter) includes a pair of first cutting blades disposed on the left and right sides, and a pair of second cutting blades opposed to each other on the top and bottom and arranged side by side. And a pair of saw blades facing left and right, the saw blades being mounted on the front surfaces of the left and right columns respectively movable left and right, and the first cutting blades being second left and right movable left and right respectively. The gist is that the upper and lower second cutting blades mounted on the movable frame are mounted on the upper and lower third movable frames that are movably installed on the upper and lower portions of the rear surface of each column, respectively. However, the left and right refer to the left and right of the wood feeding path, and the front and rear refer to the front and back in the wood feeding direction.

  Each column and each second movable frame can be installed on a common base frame via a first movable frame that can be moved to the left and right, and the upper and lower third movable frames can be moved up and down, respectively. It can be installed on the upper and lower auxiliary frames so as to be movable left and right.

  Each saw blade may be a biaxial circular saw blade, and on each of the left and right columns, a downward feed roller may be attached via a swinging arm that projects forward and opens and closes horizontally, A circular saw blade that rotates horizontally may be mounted on the rear surfaces of the left and right second movable frames via a fourth movable frame that can move to the left and right.

  Each first cutting blade may be combined with a coaxial tip saw, and each first cutting blade may have a biaxial horizontal axis shape or a vertical axis shape.

  According to the configuration of the first invention, the first step of the lumbering apparatus is to cut the left and right sides of the wood into chips to form a vertical surface, to make the drum material from the log wood, and to make the square material from the drum material be able to. In the second step, the top, bottom, left, and right of the wood are cut into chips to form notches including a vertical plane and a horizontal plane, and the top, bottom, left, and right wooden edges can be trimmed. Moreover, a 3rd process can make a board | plate material from the drum material after wood cutting, and can make a board | plate material and a square material from a square material by crushing the left and right of a timber.

  However, the 1st-3rd process can perform at least any one in the going-out path | route which carries out forward feeding of the centered timber to a lumber apparatus via a feeding vehicle, and the 1st, 2nd process is In the return path for returning the wood to the rear of the lumbering apparatus via the feed wheel, at least one of them can be executed. However, only the third step may be executed on the return path. In addition, a 90 ° rotation operation of wood is interposed between the return path and the return path between the return path and the return path, as necessary, so that the left and right processed surfaces are interchanged with the upper and lower processed surfaces.

  In addition, since the lumber device uses a single feeding vehicle to reciprocate the wood an integer number of times, there is no need to re-center the wood in the middle of processing. The final core material is discharged to the rear of the lumber device that supplies the lumber before lumbering. However, if only the third step is executed in the final return path, both the core material and the cut square material or plate material are discharged to the rear of the sawing apparatus. The first to third steps are arranged in this order from the rear to the front of the lumber apparatus. However, the first and second steps may be arranged in reverse order.

  According to the configuration of the second invention, the first cutting blades on the left and right sides make a drum material from log wood, make a square material from the drum material, and execute the first step of the first invention. Further, the second cutting blades on the top, bottom, left and right cut the wood top, bottom, left and right, and execute the second step of the first invention. Further, the left and right saw blades cut the left and right sides of the wood and execute the third step of the first invention. Each saw blade is mounted on the front of a column that can be moved to the left and right, so that the cutting position can be set arbitrarily. Each first cutting blade is mounted on a second movable frame that can be moved to the left and right. By doing so, the formation positions of the left and right vertical planes can be arbitrarily set, and the vertical cutting position of the wood trimming is achieved by mounting each of the upper and lower second cutting blades on the third movable frame on the rear surface of the column. The depth can be set arbitrarily. However, each 1st cutting blade may be the horizontal axis shape which opposes right and left, and the vertical axis | shaft shape arranged in parallel at right and left may be sufficient as it. Moreover, what is necessary is just to arrange | position each 2nd cutting blade according to the grinding position by each saw blade fundamentally on the outer peripheral blade-tip surface.

  If each column and each second movable frame are installed on the base frame via the first movable frame, the first cutting blade is indirectly mounted on the first movable frame via the second movable frame, It is only necessary to finely adjust the second movable frame with reference to the setting position of the first movable frame that sets the cutting position by each saw blade, and the set movement amount on the left and right can be minimized.

  Each third movable frame is set to move left and right on an auxiliary frame that can move up and down, thereby moving the second cutting blade up and down and left and right. The depth can be set arbitrarily.

  Each saw blade is a biaxial circular saw blade, so that a sufficiently smooth cut surface can be realized for a large-diameter material. The left and right feed rollers supported by the swing arms on the left and right columns grip the plate material that is broken by the left and right saw blades and actively feed the plate material, and the plate material is separated from the wood in the sawmill. This prevents accidents in which the posture is disturbed and the board material challenges it. However, the peripheral speed of each feed roller is synchronized with the wood feed speed of the wood feed truck.

  If a circular saw blade that rotates horizontally is mounted on the rear surface of each second movable frame, the plates and squares formed on the left and right sides of the timber can be ground horizontally and further subdivided in the forward or backward path of the feed. it can. At this time, the number of circular saw blades may be one, or a plurality of circular saw blades whose interval can be adjusted.

  The coaxial tip saw combined with each first cutting blade can finely finish a vertical surface to be cut while being formed into a chip by the first cutting blade. In general, the first cutting blade is set to the optimum rotation speed for the feed speed depending on the size of the wood chip. Therefore, the cutting surface is rough, and it is not uncommon for the cutting surface to be chipped (reverse blurring). The tip saw can efficiently correct such defects of the cutting surface. Note that the tip saw is driven to rotate sufficiently faster than the first cutting blade via a double-shaft drive shaft concentric with the hollow drive shaft that drives the first cutting blade. For example, when the rotation speed of the first cutting blade is 900 to 1200 rpm, it is preferable to set the rotation speed of the tip saw to about 2700 to 3200 rpm. However, the first cutting blade at this time has a horizontal axis shape, and the tip saw is mounted on the tip of another driving shaft that forms a driving shaft for the first cutting blade and a double shaft.

  By making each first cutting blade into a biaxial horizontal axis shape, even if it is a large-diameter material, the cutting force applied to the wood being cut can be kept small, and the wood can be fed safely. In addition, each biaxial 1st cutting blade arrange | positions the front-end | tip edge face, and arrange | positions so that an outer periphery may overlap slightly up and down similarly to a biaxial circular saw blade.

  The first cutting blades on the left and right of the vertical axis are moved in conjunction with the left and right during feeding, thereby curving the vertical planes formed on the left and right of the wood in the length direction of the wood, causing the bending of the wood Can be cut into a square bar of uniform thickness without removing the core. Such a square member can be effectively used as a regular plate member by, for example, processing it into a plate member using a gang saw capable of sawing along a curved surface, correcting the bending, and drying. In addition, it is preferable to use the 1st cutting blade at this time in combination with the surface plate before and behind adjusting the cutting depth, for example, making it the vertical cylinder shape which embeds a cutting blade in the outer periphery of a rotary cylinder.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  The lumber apparatus includes a pair of horizontal-axis-type first cutting blades 11, 11 facing left and right, a pair of vertical-axis-shaped second cutting blades 12, 12 facing each other in the vertical direction, and left and right. .. Are provided with opposing two-axis horizontal circular saw blades 13, 13,... (FIGS. 1 and 2). However, each of the biaxial circular saw blades 13 and 13 forms one of a pair of saw blades facing left and right. Moreover, each arrow K of FIG. 1, FIG. 2 shows the going path direction of the timber reciprocated by the feed vehicle which is not shown in figure.

  Each of the biaxial circular saw blades 13 and 13 is mounted on the front surface of a column 21 a erected on the front portion of the first movable frame 21. The circular saw blades 13 and 13 are arranged such that the outer circumferences of the circular saw blades 13 are slightly overlapped with each other in the same plane, and the upper circular saw blade 13 is disposed slightly rearward of the lower circular saw blade 13 and is arranged on the front surface of the column 21a. Are mounted together with motors 13a, 13a for driving the respective circular saw blades 13 as belts.

  The left and right first movable frames 21, 21 are installed on a common base frame 25. Each first movable frame 21 is movably installed on the base frame 25 via slide rails 21b, 21b... And is set to move left and right via a ball screw shaft 21c that is rotationally driven by a positioning motor 21d. can do. Each slide rail 21b is engaged with sliders 21b1, 21b1,... On the lower surface of the first movable frame 21 (FIGS. 2 and 3), and the ball screw shaft 21c is fixed to the fixed bracket 21c2 on the base frame 25. The screw member 21c1 is supported by a screw. However, FIG. 3 also shows the wood W that is fed between the circular saw blades 13, 13,... Via the feeding wheel 50 and is ground into the left and right plate materials W1, W1.

  Each first cutting blade 11 is mounted on a second movable frame 22 installed at the rear of the first movable frame 21 (FIGS. 1 and 2). On the second movable frame 22, a motor 11 a that belt-drives the first cutting blade 11 is also mounted in steps. The second movable frame 22 is movable to the left and right via slide rails 22a and 22a on the first movable frame 21 (FIGS. 2 and 4), and each slide rail 22a includes a lower surface of the second movable frame 22. The sliders 22a1, 22a1,. The second movable frame 22 can be set to move left and right via a ball screw shaft 22b that is rotationally driven by a positioning motor 22c. The ball screw shaft 22b is set via a fixed bracket 22b2 on the first movable frame 21. The screw member 22b1 is supported by the screw member 22b1.

  Therefore, when the first cutting blades 11 and 11 are brought close to appropriate positions and the wood W is fed between the first cutting blades 11 and 11 via the feeding wheel 50, the first cutting blades 11 and 11 are The vertical surfaces W2 and W2 are formed by cutting the left and right sides of the wood W into chips. For example, a drum material can be made from the log wood W.

  The upper and lower second cutting blades 12 and 12 are mounted on the rear surface of the column 21a via the third movable frame 23 so as to be movable up and down and left and right (FIGS. 1 and 2). However, each third movable frame 23 is installed on an auxiliary frame 24 that can move up and down so as to be movable left and right. On the third movable frame 23, a motor 12a for driving the second cutting blade 12 as a belt is also mounted.

  A pair of upper and lower slide rails 24a, 24a,... Are arranged on the rear surface of the column 21a (FIGS. 5 and 6), and each slide rail 24a has a slider 24a1 on the back surface of the auxiliary frame 24, 24a1 is engaged. Also, horizontal slide rails 23a and 23a are disposed on each auxiliary frame 24, and sliders 23a1 and 23a1 on the back surface of the third movable frame 23 are engaged with each slide rail 23a (see FIG. 1, FIG. 5). The upper and lower auxiliary frames 24, 24 are connected via a cylinder 24b (FIGS. 2 and 6), and the lower auxiliary frame 24 is connected to the first movable frame 21 via a cylinder 24c. The third movable frame 23 is connected to the auxiliary frame 24 via a horizontal cylinder 23b on the auxiliary frame 24 (FIGS. 1 and 6).

  Therefore, each of the second cutting blades 12 can be set to move left and right by expanding and contracting the cylinder 23b, and the interval and height between the second cutting blades 12 and 12 facing each other in the vertical direction are set by extending and retracting the cylinder 24b. The cylinder 24c can be expanded and contracted and can be collectively set. In FIG. 6, the wood W fed between the upper, lower, left and right second cutting blades 12, 12... By the feeding wheel 50 is trimmed by the right upper and lower second cutting blades 12, 12. The situation is schematically illustrated. That is, each of the second cutting blades 12 can cut while cutting the wood W up, down, left and right, and can form notches including the vertical plane W3 and the horizontal plane W4 on the top, bottom, left and right of the wood W.

  On the left and right columns 21a, 21a, downward feed rollers 32 are installed via swinging arms 31 protruding forward (FIGS. 1 and 2).

  The tip of each swing arm 31 is bent downward and connected via a cylinder 33. That is, the swing arms 31 and 31 can be opened and closed horizontally by extending and contracting the cylinder 33. Each feed roller 32 is connected to a motor 32a and has a flange 32b at the lower end. The feed rollers 32, 32 are used to cut the left and right sides of the wood W with the circular saw blades 13, 13... To produce the plate materials W 1, W 1 (FIG. 7), while feeding the wood W, the plate materials W 1, W 1 from the left and right sides. In synchronization with the feeding speed of the timber W by the timber 50, the timber W, the plate materials W1, W1 are actively fed forward, and until the rear end of the timber W, the crushed plate materials W1, W1 are the timber. Inadvertent separation from W is prevented.

  A feeding vehicle 50 that feeds wood W to a lumber apparatus is configured by connecting front and rear carriages 52 and 53 via a connecting frame 51 (FIG. 8). The front and rear trolleys 52 and 53 can be moved forward and backward on the front and rear tables 56 and 57, respectively. In addition, on the front part and the rear part of the connection frame 51, opposite chucks 54 and 55 are mounted via front and rear moving bases 54a and 55a in order to support both ends of the centered wood W. ing. However, the feeding vehicle 50 shown in FIGS. 3, 4, 6, and 7 representatively shows only the connecting frame 51 penetrating the sawing apparatus in the front-rear direction.

  The moving table 54a for the front chuck 54 is relatively movable back and forth on the connection frame 51 via a slide rail 54b on the connection frame 51 and sliders 54c, 54c... Engaging with the slide rail 54b ( 8 and 9). 9A is an enlarged view of a main part of FIG. 8, and FIG. 9B is an equivalent view taken along the line XX of FIG. The moving table 54 a has a length that penetrates the sawing apparatus back and forth, and the front end of the moving table 54 a is connected to a cylinder 54 d mounted on the front end of the connecting frame 51. Further, the chuck 54 is connected to a rotary actuator 54f through a shaft 54e having the same length as that of the moving base 54a. The rotary actuator 54f is mounted at the front end of the movable table 54a, and can rotate the chuck 54 every 90 ° via a shaft 54e.

  The moving table 55a for the rear chuck 55 is loaded on the rear portion of the connection frame 51 so as to be relatively movable back and forth in the same manner as the front moving table 54a. The moving table 55a is connected to a cylinder 55d on the connecting frame 51 which is shorter than the moving table 54a and has a longer stroke than the cylinder 54d. A lock 55f that prevents rotation of the chuck 55 is mounted on the moving table 55a except when the rotary actuator 54f is operated.

  On the front table 56, guide rails 52a and 52a for the carriage 52 are laid. An endless chain 58 is suspended between the front and rear sprockets 58a and 58a along the guide rails 52a and 52a. The chain 58 is connected to the front end of the carriage 52 via a connecting fitting 52b, and the front sprocket 58a for the chain 58 is connected to a drive motor 58c via a speed reducer 58b. A stopper 52c for the carriage 52 is disposed at the front end of the front table 56. On the rear table 57, guide rails 53a, 53a for the carriage 53 are laid. A stopper 53c for the carriage 53 is disposed at the rear end of the rear table 57.

  Therefore, the wood W can be clamped between the front and rear chucks 54 and 55 by supporting both ends of the wood W centered in advance. However, the subsequent chuck 55 is moved to an appropriate position via the cylinder 55d and the moving table 55a according to the length of the wood W. The clamp and unclamping of the wood W are performed by moving the cylinder 54d and the moving table 54a. By moving the front chuck 54 forward toward the rear chuck 55 and moving it backward. Further, the wood W being clamped can be rotationally driven every 90 ° via the rotary actuator 54f as necessary, and the lock 55f is released while the wood W is rotating.

  When the drive motor 58c is driven forward and backward, the front carriage 52 is driven back and forth via the chain 58, and the wood W clamped on the feed wheel 50 via the chucks 54 and 55 is reciprocated into the saw mill. can do. However, FIG. 8 shows the backward limit of the feeding wheel 50, and the wood W before sawing is clamped via chucks 54 and 55 on the backward feeding wheel 50 at the rear of the sawing device after centering. The Further, the core material after the sawing is also unclamped from the backward limit feeding wheel 50 and discharged to the rear of the sawing device. On the other hand, the feed wheel 50 discharges the plate material W1 and the like generated in the middle of the lumbering to the front of the lumbering device in the forward limit restricted by the stopper 52c.

  Now, taking stepped plate materials W1 and W1 and flat plate materials W1 and W1 from the log wood W (FIG. 10A) and taking the square material W5 as the core material, for example, the lumbering procedure is shown in FIG. (A) to (D). However, in the following description, in the forward path in which the wood W is clamped and the feed wheel 50 is moved forward, and in the return path in which the feed wheel 50 is moved back and returned, the first cutting blades 11 and 11 make the vertical plane W2 to the left and right of the wood W. , W2 forming step (FIG. 4) is referred to as the first step, and the second cutting blades 12, 12,... Forming the notches including the vertical plane W3 and the horizontal plane W4 on the top, bottom, left and right of the wood W (FIG. 6). Is called the second step, and the step (FIG. 3) of cutting the left and right sides of the wood W with the circular saw blades 13, 13,.

  In the following description, the biaxial circular saw blades 13 and 13 for the third step are set at predetermined positions via the positioning motor 21d, and the first cutting blades 11 for the first step are positioned. In addition to the motor 21d, it is set at a predetermined position via a positioning motor 22c. Furthermore, the upper and lower second cutting blades 12 and 12 for the second step are set at predetermined positions in the horizontal direction via the cylinder 23b in addition to the positioning motor 21d, and the respective intervals via the cylinders 24b and 24c, The height is set at a predetermined position. On the other hand, in the forward and return paths of the feeding vehicle 50, the circular saw blades 13 and 13 when the third process is not executed, the first cutting blades 11 when the first process is not executed, and the second process are not executed The second cutting blades 12 and 12 are retracted from the wood W on the feed wheel 50 via the corresponding positioning motors 21d and 22c and cylinders 23b, 24b and 24c.

  10A, first, the centered timber W is clamped on the feeding wheel 50 and fed toward the lumber machine, and the first step, the first step, Two steps are executed ((1) and (2) in FIG. 11A). Subsequently, the feed wheel 50 is once returned to the rear of the sawing apparatus, and the second step and the third step are executed in the second outbound path ((1) and (2) in FIG. 5B). Then, the stepped plate materials W1 and W1 are discharged in front of the sawing apparatus. Next, after the feeding vehicle 50 is returned, the second step and the third step are executed in the third outbound path ((1), (2) in FIG. 3C), and the flat plate material W1, Discharge W1. Next, when the wood W on the feeding vehicle 50 is rotated by 90 ° via the rotary actuator 54f ((1) in FIG. 4D), the first step is executed in the return path for returning the feeding vehicle 50. ((2) in the same figure (D)), the square member W5 of the core can be unclamped to the rear of the sawing apparatus and discharged ((3) in the same figure (D)).

  In FIG. 11 (D), the wood W is rotated by 90 ° and the feed wheel 50 is returned as it is ((1) in FIG. 11 (D)). The first step and the third step are executed in the fourth outbound path. Then (dash-dotted lines (2) and (3) in the same figure (D)), flat plate materials W1 and W1 can be added to both ends in the long side direction of the square member W5 (FIG. 10B). ). At this time, when the last plate materials W1 and W1 are discharged to the front of the sawing apparatus, the feeding wheel 50 is returned and the square member W5 is discharged to the rear of the sawing apparatus.

  When a pair of flat plate materials W1, W1,... Are taken from the log wood W to the left and right of the core square W5 (FIGS. 10C and 10D), for example, according to the procedure of FIG.

  First, the first to third steps are executed in the first outbound path ((1) to (3) in FIG. 12A), and the first plate members W1 and W1 are discharged to the front of the sawing apparatus. Thereafter, the feeding vehicle 50 is returned, and the second and third steps are executed in the second outbound path to discharge the next plate materials W1 and W1 ((1) and (2) in FIG. 2B). Then, the wood W is rotated by 90 ° ((1) in the same figure (C)), the first step is executed in the return path ((2) in the same figure (C)), and the square bar W5 is discharged to the rear of the sawing apparatus. ((3) of (C) in the figure).

  When the plate members W1, W1,... Are taken around the four corners of the core square member W5 (FIGS. 10E and 10F), for example, according to the procedure of FIG.

  First, the first to third steps are executed in the first outbound path to produce and discharge the left and right plate materials W1 and W1 ((1) to (3) in FIG. 13A). Subsequently, the wood W is rotated by 90 ° ((1) in FIG. 13B), the feed wheel 50 is returned, and the first and third steps are executed in the second outbound path, and the next plate materials W1, W1 are performed. Is discharged ((2) and (3) in FIG. 13B). Next, the feeding wheel 50 is returned to discharge the square bar W5 ((4) in FIG. 13B).

  When taking small-width plate materials W1, W1,... On the four circumferences of the square member W5 of the core (FIGS. 10G to 10J), for example, the procedure of FIG.

  First, the first to third steps are executed in the first outbound path to discharge the first plate materials W1 and W1 ((1) to (3) in FIG. 14A). Subsequently, the wood W is rotated by 90 ° ((1) in FIG. 14B), the feeding vehicle 50 is returned, and the first to third steps are executed in the second outbound path to perform the next plate material W1. , W1 is discharged ((2) to (4) in FIG. 14B). Thereafter, the feeding wheel 50 is returned to discharge the square material W5 ((5) in FIG. 14B).

  The wood plan of FIG. 10 and the lumbering procedure corresponding to FIGS. 11 to 14 are merely examples, and various modifications can be made. That is, the lumber apparatus reciprocates the centered wood W once or twice or more integer times while interposing at least one 90 ° rotation operation, and at least in the first to third steps in the forward path. By selectively executing any one and not performing any of the first to third steps or selectively performing at least one of the first to third steps in the return path, for example, FIG. Even a complicated wood plan as shown in A) to (G) can be made sufficiently practically and efficiently. However, as shown in FIGS. 15 (B) to 15 (G), when the left and right plate members of the square member W5 are further subdivided to produce a fine plate member or a square product as a final product, the left and right plate members produced by this sawing device are dried. After that, it is assumed that it is subdivided through another grinding process, and thus a more stable final product can be obtained. In addition, instead of making the corners coincide with the outer periphery of the log wood W, the surface of the core material W5 is further finely modified in the first step or the third step to conform to the standard dimensions of the standard material. It is also possible.

  In the above description, each of the biaxial circular saw blades 13 and 13 for the third step may be a single circular saw blade or a band saw blade. Also, the left and right saw blades are arranged on the left and right sides independently of each other so that the left and right saw blades can be divided instead of the left and right ones. May be. The left and right first cutting blades 11 and 11 for the first step and the upper and lower second and right second cutting blades 12 and 12 for the second step may be interchanged.

  The first cutting blades 11, 11 have a total length of the wood W by changing the distance D in the middle of the feeding when the diameters d 1, d 2 of the original and end of the wood W are d 1 >> d 2. Shorter plates W1a, W1a can be made (FIG. 16). However, in FIG. 16, the arrow indicates the direction of feeding the wood W, and the alternate long and short dash line schematically shows the relative movement path of the first cutting blades 11 and 11 with respect to the wood W during feeding. Further, the hatched portion in the figure shows a portion to be cut by cutting with the first cutting blades 11 and 11, and the plate materials W1a and W1a are separated from the wood W by the third step by the circular saw blades 13, 13. Shall.

  The left and right second movable frames 22 and 22 may be movably installed at the rear part of the base frame 25 without passing through the left and right first movable frames 21 and 21, respectively. At this time, the left and right first cutting blades 11 and 11 can be set at predetermined positions via the positioning motor 22c by standing the fixing bracket 22b2 for the screw member 22b1 on the base frame 25, respectively. In addition, the first movable frames 21 and 21 at this time may be part of the columns 21a and 21a, respectively, and may be omitted.

  The lumber apparatus omits the upper, lower, left and right second cutting blades 12, 12,... For the second step, and includes the first cutting blades 11, 11 for the first step and the left and right saw blades for the third step. It is good also as a structure provided. That is, the wood cutting of the second process may be separated into another process by another apparatus. The first cutting blades 11 and 11 for the first process and the left and right second movable frames 22 and 22 on the base frame 25 can be configured as independent canter devices.

Other embodiments

  Each first cutting blade 11 can be combined with a coaxial tip saw 14 (FIGS. 17 and 18).

  The 1st cutting blade 11 is being fixed to the front-end | tip of the hollow drive shaft 11b, and the drive shaft 11b is connected with the pulley 11e of the shaft end of the motor 11a via the pulley 11c and the belt 11d. The drive shaft 11b is rotatably mounted on the upper part of the second movable frame 22 via bearings 11f and 11f. On the other hand, the tip saw 14 is fixed to the tip of a drive shaft 14a that forms a concentric double shaft together with the drive shaft 11b, and is connected to a pulley 11e common to the first cutting blade 11 via a pulley 14b and a belt 14c. Has been. The drive shaft 14a is mounted on the drive shaft 11b via bearings 14d and 14d so as to be relatively rotatable, and the pulley 14b has a smaller diameter than the pulley 11c. A tension pulley 14e is attached to the belt 14c, and the tension pulley 14e can appropriately set the tension of the belt 14c through the swing bracket 14f.

  The tip saw 14 can finish the cutting surface by the first cutting blade 11 beautifully by being driven to rotate at a higher speed than the first cutting blade 11. However, the first cutting blade 11 is provided with a cutting knife (not shown) on the conical surface, and the cutting edge of the tip saw 14 is slightly smaller than the minimum diameter of the first cutting blade 11. By slightly projecting in the axial direction from the tip surface of 11, the cutting surface by the first cutting blade 11 can be removed. Since the tip saw 14 rotates at a higher speed than the first cutting blade 11, it is preferable to give sufficient consideration so that wood chips do not enter the first cutting blade 11 and are not seized. In FIG. 18, the tip saw 14 is held in a stepped storage portion 11g formed on the tip surface of the first cutting blade 11, and can be exchanged to the tip of the drive shaft 14a via a disk-shaped bracket 14g. It is installed.

  A circular saw blade 15 that rotates horizontally can be mounted on the rear surfaces of the second movable frames 22, 22 for the first cutting blades 11, 11 via a fourth movable frame 26, respectively (FIGS. 19, 20). ).

  Slide rails 26a, 26a are attached to the rear surface of the second movable frame 22 in two steps, and sliders 26a1, 26a1,... On the back surface of the fourth movable frame 26 are engaged with each slide rail 26a. Yes. The fourth movable frame 26 is connected to the second movable frame 22 via a cylinder 26b, and can be moved left and right by expanding and contracting the cylinder 26b. On the other hand, the circular saw blade 15 is mounted on a long drive shaft 15b supported upward on the fourth movable frame 26 via a bearing 15c. The circular saw blade 15 and the drive shaft 15b are belt-driven by a motor 15a. ing. The height position of the circular saw blade 15 can be adjusted and set via spacer collars 15d, 15d... Mounted on the drive shaft 15b.

  The circular saw blades 15 and 15 can cut the left and right plate materials W1 and W1 up and down in the forward or return path of the wood W to make the plate materials W1b and W1b (FIG. 21). However, each of the circular saw blades 15 is attached to a plurality of each drive shaft 15b, so that, for example, as shown in FIGS. 15B to 15G, the left and right plate members are further subdivided to make fine plate members and square members. It is also possible. In addition, the circular saw blade 15 can automatically set the mutual interval by attaching two sets of movable up and down and left and right to the rear surface of the second movable frame 22 following the left and right second cutting blades 12 and 12. It is good.

  A pair of 1st cutting blades 11 and 11 which oppose right and left can each be replaced with a biaxial horizontal axis form (Drawing 22 and Drawing 23).

  The biaxial first cutting blades 11 and 11 are arranged such that the front end of the second movable frame 22 has the same cutting edge surface, and the outer circumferences of the first cutting blades 11 and 11 slightly overlap each other. The blade 11 is arranged slightly behind the lower first cutting blade 11. The second movable frame 22 is also equipped with motors 11a and 11a for individually driving the upper and lower first cutting blades 11 and 11 with belts. Even if the upper and lower first cutting blades 11 and 11 are driven to rotate in opposite directions, the left and right sides of the large-diameter wood W are cut to form common vertical surfaces W2 and W2 (FIG. 24). There is no possibility of exerting an excessive cutting force on the wood W inside. However, each first cutting blade 11 may be combined with a coaxial tip saw 14 following FIGS. 17 and 18.

  22 to 24, the common base frame 25 is divided into front and rear base frames 25a and 25b, and the left and right first movable frames 21 and 21 are omitted. That is, the left and right columns 21a, 21a for the circular saw blades 13, 13 ... are mounted on the front base frame 25a so as to be movable left and right via the slide rails 21b, 21b and the sliders 21b1, 21b1, ..., respectively. The left and right second movable frames 22, 22 for the first cutting blades 11, 11,... Are movably mounted on the rear base frame 25b via slide rails 22a, 22a and sliders 22a1, 22a1,. Has been.

  22 to 24, the upper and lower second cutting blades 12 and 12 are mounted on the rear surface of the column 21a via the third movable frame 23 so as to be movable up and down, and the auxiliary frame 24 is omitted. Yes. However, the upper and lower second cutting blades 12, 12 have the outer peripheral cutting edge surfaces matched with the grinding positions by the corresponding circular saw blades 13, 13. In general, the position and depth of the horizontal cutting edge by the second cutting blades 12, 12... Coincide with the grinding positions by the immediately subsequent circular saw blades 13, 13,. , 12 are sufficient to move to the left and right in conjunction with the corresponding circular saw blades 13, 13 via a common column 21a (for example, (1), (1) in FIGS. 11B and 11C). 2), (2) and (3) in FIG. 12 (A), (1) and (2) in FIG. 12 (B), (2), (3) and FIG. 14 (A) in FIG. (2), (3), (3), (4) in FIG.

  Each third movable frame 23 is mounted in two upper and lower stages on the rear surface of the column 21a via vertical slide rails 24a, 24a, sliders 24a1, 24a1,... (FIGS. 22 and 23). The third movable frame 23 is mounted with a vertical ball screw shaft 23c connected to the positioning motor 23d. Therefore, the third movable frame 23 is set to move the second cutting blade 12 up and down via the positioning motor 23d by screwing the ball screw shaft 23c to the screw member 23c1 fixed to the column 21a via the bracket 23c2. can do.

  The 1st cutting blades 11 and 11 are good also as a vertical axis | shaft shape arranged in parallel with right and left (FIG. 25, FIG. 26).

  Each first cutting blade 11 is supported via upper and lower bearings 11 h and 11 h protruding from the second movable frame 22, and is belt-driven by a motor 11 a on the second movable frame 22. Moreover, the 1st cutting blade 11 is comprised by embedding the cutting blade which is not shown in figure on the outer periphery of the rotating drum of a vertical axis | shaft.

  Before and after each first cutting blade 11, in order to set the cutting depth by the first cutting blade 11, surface plates 16, 16 that can be moved to the left and right are disposed. Horizontal slide rails 16a, 16a are attached to the front and rear surfaces of the second movable frame 22 in two upper and lower stages, and each surface plate 16 has sliders 16a1, 16a1,. By being engaged, the second movable frame 22 is mounted on the front and rear surfaces so as to be movable left and right. Further, the surface plate 16 is connected to the second movable frame 22 via the cylinder 16b. In addition, the front-end | tip part 16c of each surface plate 16 protrudes toward the 1st cutting blade 11, and the inner side is notched diagonally.

  The surface plates 16 and 16 are driven via the cylinder 16b, and the relative positions of the tip portions 16c and 16c and the outer peripheral cutting edge surface of the first cutting blade 11 can be arbitrarily changed and set. However, when the front and back surface plates 16 and 16 feed the wood W forward in the direction of the arrow K in FIG. 25, the first cutting blade 11 is located on the rear side (the front side in the traveling direction of the wood W) of the first cutting blade 11. Is retracted so as to be sufficiently away from the outer periphery of the blade, and the front end portion 16c on the front side (the back side in the traveling direction of the wood W) is set at substantially the same position as the cutting edge surface of the outer periphery of the first cutting blade 11 to guide the wood W. And keep it steady. When the wood W is moved backward in the direction opposite to the arrow K direction, the surface plates 16 and 16 retract the front side of the first cutting blade 11 (the front side in the direction of travel of the wood W) and the rear side (of the wood W). Set the back in the direction of travel) to a predetermined position.

  The vertical first cutting blades 11 and 11 are interlocked to the left and right via the second movable frames 22 and 22 together with the surface plates 16 and 16 including the side for setting the cutting depth during feeding of the wood W. The vertical surfaces W2 and W2 formed on the left and right sides of the drum wood W are curved in accordance with the curvature of the wood W, and the uniform thickness t is removed without removing the core of the wood W causing the curvature. The square bar W5 can be made (FIG. 27). Therefore, the square material W5 having the curved vertical surfaces W2 and W2 is additionally processed on the plate material by a gang saw capable of sawing along the curved surface (two-dot chain line in the figure), and the bending of each plate material is corrected. Then, it can be effectively used as a regular plate material by drying. The square bar W5 shown in FIG. 27 is made of a drum material made of a rounded log wood W with the curve turned up and down, rotated 90 °, and has curved vertical surfaces W2 and W2 on the left and right. A square member W5 may be formed.

  The circular saw blades 15 and 15 mounted on the second movable frames 22 and 22 via the fourth movable frame 26 and the feed rollers 32 and 32 supported via the swing arms 31 and 31 are shown in FIGS. 24 and FIGS. 25 to 26 are also applicable. Further, even in the first cutting blades 11, 11... In FIGS. 22 to 24, the second movable frames 22 and 22 on the base frame 25b are rotated around a vertical axis (not shown) to bend vertically. The surfaces W2 and W2 can be formed on the left and right sides of the square member W5. The first cutting blades 11, 11..., The second movable frames 22, 22, the base frame 25 b of FIGS. 22 to 24, the first cutting blades 11, 11, and the surface plates 16, 16 of FIGS. The second movable frames 22 and 22 and the base frame 25 can also be configured as independent canter devices.

Overall plan view A cross-sectional schematic diagram corresponding to the line AA in FIG. Schematic diagram corresponding to arrow B in FIG. Schematic diagram equivalent to arrow C in FIG. 2 is a schematic diagram of the main part configuration of FIG. DD cross-sectional schematic diagram of FIG. Schematic diagram explaining the operation corresponding to the arrow B in FIG. Usage diagram 8 is an enlarged explanatory view of the main part of FIG. Wood plan plan explanatory drawing (1) Illustration of sawing procedure (1) Illustration of sawing procedure (2) Illustration of sawing procedure (3) Illustration of sawing procedure (4) Wood plan plan explanatory drawing (2) Operation explanatory diagram showing another embodiment Fig. 2 is an enlarged view of the main part corresponding to Fig. 2 showing another embodiment. 17 is an enlarged view corresponding to the longitudinal section of FIG. Fig. 1 is an enlarged view of the main part corresponding to Fig. 1 showing another embodiment. E-arrow equivalent enlarged view of FIG. Wood plan plan FIG. 1 equivalent view (1) showing another embodiment FIG. 2 equivalent view showing another embodiment FIG. 4 equivalent view (1) showing another embodiment FIG. 1 equivalent view (2) showing another embodiment FIG. 4 equivalent view (2) showing another embodiment Additional engineering drawings

Explanation of symbols

W ... wood W2, W3 ... vertical surface W4 ... horizontal surface 11 ... first cutting blade 12 ... second cutting blade 13 ... circular saw blade 14 ... tip saw 15 ... circular saw blade 21 ... first movable frame 21a ... column 22 ... second Movable frame 23 ... third movable frame 25 ... base frame 26 ... fourth movable frame 31 ... oscillating arm 32 ... feed roller

Patent Applicant Kyowa Co., Ltd.
Fuji Manufacturing Co., Ltd.
Attorney Tadaaki Matsuda, Attorney

Claims (10)

  A first step of cutting the left and right sides of the wood into chips to form a vertical plane, a second step of cutting the top and bottom and left and right sides of the wood into chips to form notches including a vertical plane and a horizontal plane, and a left and right side of the wood The lumber apparatus that performs the third step of grinding the wood, the centered wood is reciprocated a whole number of times while interposing at least one 90 ° rotation operation using one feeding vehicle, In the forward path, at least one of the first to third processes is selectively executed, and in the return path, any of the first to third processes is not performed, or at least one of the first to third processes is performed. A lumbering method characterized by selectively executing the method.   A pair of first cutting blades disposed on the left and right, a pair of second cutting blades facing vertically and arranged side by side, and a pair of saw blades facing left and right, The first cutting blades are mounted on the left and right second movable frames that can be moved to the left and right, respectively, and the upper and lower second cutting blades are respectively mounted on the front surfaces of the left and right columns that can move left and right. A sawing apparatus mounted on an upper and lower third movable frame that is movably installed on the upper and lower parts of the rear surface of the column.   3. The lumber apparatus according to claim 2, wherein each column and each second movable frame are installed on a common base frame via a first movable frame that is movable to the left and right.   The lumber apparatus according to claim 2 or 3, wherein the upper and lower third movable frames are installed so as to be movable left and right on upper and lower auxiliary frames that are movable up and down.   The saw saw device according to any one of claims 2 to 4, wherein each saw blade is a biaxial circular saw blade.   6. The lumber apparatus according to claim 2, wherein a downward feed roller is provided on each of the left and right columns via swinging arms that project forward and open and close horizontally.   7. The circular saw blade that rotates horizontally is mounted on the rear surfaces of the left and right second movable frames via a fourth movable frame that can move to the left and right, respectively. Sawmill equipment.   The lumber apparatus according to any one of claims 2 to 7, wherein a coaxial tip saw is combined with each of the first cutting blades.   The lumber apparatus according to any one of claims 2 to 8, wherein each of the first cutting blades has a biaxial horizontal axis shape.   The lumber apparatus according to any one of claims 2 to 7, wherein each of the first cutting blades has a vertical axis shape.

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