JP2004058330A - Apparatus and method for working square timber - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a square timber working technique effective to rationally grind again the square timber deformed after sawmilling or drying when the timber thus deformed is ground again to a predetermined target squire timber. <P>SOLUTION: An apparatus 100 for working the square timber includes a trestle 10, a cutter unit 20, a centering unit 50 and the like. The cutter unit 20 has a horizontal surface cutter 26, a vertical surface cutter 27, etc. The centering unit 50 includes a vertical clamping mechanism 30 for clamping with respect to the vertical direction of the square timber W, and a horizontal clamping mechanism 40 for clamping with respect to a horizontal direction. The square timber W centered via the centering unit 50 is formed with a horizontal reference surface parallel to the horizontal surface of the target square material and a vertical reference surface parallel to the vertical surface of the target square material by the cutter unit 20. This horizontal reference surface and vertical reference surface can be used as references at the time of grinding again. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a square material processing technique for processing a square material deformed after lumbering or drying into a shape corresponding to the target square material when reshaping the square material as a predetermined target square material.
[0002]
[Prior art]
For example, in the field of building materials, there is a demand for dried lumber with less irregularity. However, since the timber is warped, bent, twisted, etc. as drying proceeds, in order to use the dried timber as a building material, it is necessary to apply so-called re-grinding to the timber. Therefore, various techniques relating to the re-grinding processing have been conventionally proposed. For example, a first processing technique for increasing the length of the platen on the side of the rectangular material loading side in the processing device and re-grinding the four surfaces of the rectangular material placed on the surface plate through a four-surface planer, using a laser to deform the rectangular material A second processing technique for re-grinding the four surfaces while confirming by marking, etc., two surfaces of the square material centered by a special sensor or the like are cut by a cutter opposed to both sides of the square material, and the square material is further removed by 90%. A third processing technique, in which the remaining two surfaces are cut by a cutter after being rotated by degrees, may be mentioned.
[0003]
[Problems to be solved by the invention]
However, the first conventional processing technique has a problem in that there is a limit in obtaining high re-grinding accuracy, and there is a problem that a warp, a bend, a torsion, and the like are greatly affected at the time of processing, and a cutting allowance is increased. In addition, the above-mentioned second conventional processing technique has a problem that the work efficiency is reduced because the centering operation requires skill. Further, the above-mentioned conventional third processing technique has a problem that it is not versatile because a dedicated machine is required, and the apparatus itself becomes large-scale and expensive.
Therefore, the present inventor has attempted to find a technique that can obtain a high re-grinding precision of a square bar, does not require a large cutting margin of the square bar, and can perform a simple and inexpensive re-grinding process. We studied diligently about the square bar processing technology. As a result of the examination, the present inventor has found that when performing re-cutting of a square bar using various types of planners including an existing 4-plane planer, a suitable pre-processing corresponding to the shape of a target square bar is performed on the square bar. By applying it, we succeeded in finding a reasonable square bar processing technology that can solve the problems of the conventional processing technology.
In the present invention, it is an object of the present invention to provide an effective square bar processing technique for reshaping a deformed square bar after lumbering or drying into a predetermined target square bar, and performing the reshaping process rationally. .
[0004]
[Means for Solving the Problems]
In order to solve the above-mentioned problems, a square bar processing apparatus of the present invention is configured as described in claims 1 and 2, and a square bar processing method of the present invention is as described in claims 3 and 4. In addition, the invention according to each of the claims is characterized in that a horizontal reference plane and a vertical reference plane corresponding to the shape of a target rectangular piece are formed on the rectangular piece as pre-processing before regrinding the rectangular piece, so that the subsequent regrind is performed. This is a technology that enables rational re-machining of a square bar using the horizontal reference plane and the vertical reference plane during processing.
[0005]
Usually, a square bar deformed after sawing or drying is re-processed to a predetermined target square bar as needed. In the "re-grinding" as used in the present invention, four sides of a rectangular bar are planed through, for example, a four-sided kneading machine (four-sided processing machine) in order to correct the warpage, bending, twist, etc. of the rectangular bar, and the warping is performed. There is a mode of forming a target square bar with less bending, twisting and the like. In addition, in this re-grinding process, a four-side processing machine other than the four-sided planner, for example, a combination of a circular saw and a two-sided planer, or a combination of various cutters and a two-sided planer. A mode in which a configuration or the like is used is also broadly included.
The apparatus for processing a square bar according to the first aspect is used to form a reference surface corresponding to a desired target square bar on the square bar before re-grinding. In this processing apparatus, a centering unit, a processing unit, and the like are provided in the apparatus main body. The centering means is for making the center axis of the bar (also the center axis of the target bar) coincide with the centering center. For example, the centering means has a configuration using a clamp means for clamping (pinching) the bar in the horizontal direction and the vertical direction. Preferably used. The position of the clamp by the clamp means is appropriately set according to the length of the timber. For example, by setting the distance from the clamp position to the end of the bar to be 25% of the total length on both the left and right sides, warpage, bending, twisting, etc. are evenly distributed, and the cutting amount during re-grinding can be minimized. it can. The centering means is preferably provided at two or more locations in the longitudinal direction of the square bar. This allows for stable support and centering of the timber.
The processing means has a configuration for processing the first surface of the centered square bar, and processing a second surface perpendicular to the first surface. For example, when the first surface is the lower surface of the bar, the side surface of the bar corresponds to the second surface. In addition, the first surface may be the side surface of the bar and the second surface may be the upper surface or the lower surface of the bar. This processing means widely includes a cutter capable of cutting square bars, a grinder capable of grinding square bars, and the like. For example, a configuration having a plurality of rotary cutters for individually cutting the first surface and the second surface, and a configuration having one rotary cutter for sequentially cutting the first surface and the second surface are processed. It can be used as a means. By such a processing means, the first surface, for example, the lower surface of the bar is processed, and a horizontal reference plane parallel to the horizontal plane of the target bar is formed. Further, the second surface, for example, the side surface of the bar is processed to form a vertical reference plane parallel to the vertical surface of the target bar. The horizontal reference plane and the vertical reference plane are planes corresponding to the desired target square bars. Therefore, by using these horizontal reference planes and the vertical reference planes as the reference in the re-grinding process, the target square bars of a desired shape can be easily obtained. Can be obtained. Since the horizontal reference plane and the vertical reference plane are formed in advance on the square bar before the re-grinding processing, it is not necessary to retract the pressing roll (feeding roll) during the re-grinding processing, and the feeding force can be maintained.
As described above, according to the bar processing apparatus of the first aspect, by forming the horizontal reference plane and the vertical reference plane corresponding to a desired target bar, the subsequent re-grinding can be performed rationally. Can be.
[0006]
Here, the processing means according to claim 1 includes a first cutter for cutting the first surface of the bar and a second cutter for cutting the second surface of the bar as described in claim 2. It is preferable that the first and second cutters operate integrally. For example, the processing means of the present invention is constituted by two types of rotary cutters connected to the drive shaft of one drive motor. Thus, the horizontal reference plane and the vertical reference plane can be formed in parallel. Therefore, according to the square bar processing apparatus of the second aspect, the horizontal reference plane and the vertical reference plane can be quickly formed on the square bar while simplifying the configuration of the processing means.
[0007]
According to a third aspect of the present invention, in the first step, in the first step, an operation is performed in which the square bar is clamped in the horizontal and vertical directions, and the center axis of the square bar coincides with the centering center. In the second step, processing is performed so that the first surface of the centered bar is a horizontal reference plane parallel to the horizontal plane of the target bar. Further, in the third step, processing is performed so that the first surface of the centered bar is a vertical reference plane parallel to the vertical surface of the target bar. For this processing, a cutter capable of cutting square materials, a grinder capable of grinding square materials, and the like can be widely used. These second and third steps may be performed in parallel using, for example, a plurality of rotary cutters, or may be performed sequentially using one rotary cutter. By using such a method of processing a rectangular bar, a subsequent re-grinding process can be performed rationally by forming a horizontal reference plane and a vertical reference plane corresponding to a desired target rectangular bar.
[0008]
In the method for processing a square bar according to the fourth aspect, a second cutter that cuts a first surface of the square bar and a second cutter that cuts a second surface of the square bar is used. And the third step is performed in parallel. This makes it possible to quickly form the horizontal reference plane and the vertical reference plane on the square bar.
[0009]
BEST MODE FOR CARRYING OUT THE INVENTION
An embodiment of the present invention will be described below with reference to the drawings.
In the present embodiment, a description will be given of a square bar processing apparatus 100 used before reshaping a square bar W deformed after sawing or drying to a predetermined target square bar T via a four-sided planer. Here, FIG. 1 is a front view showing the outline of the bar processing apparatus 100, FIG. 2 is a plan view showing the outline of the bar processing apparatus 100, and FIG. 3 is a side view showing the outline of the bar processing apparatus 100. . FIG. 4 is a side view of the cutter device 20, and FIG. 5 is a front view of the cutter device 20. 6 is a side view of the vertical clamp mechanism 30, FIG. 7 is a rear view of the vertical clamp mechanism 30, and FIG. 8 is a plan view of the vertical clamp mechanism 30. 9 is a side view of the horizontal clamp mechanism 40, FIG. 10 is a bottom view of the horizontal clamp mechanism 40, and FIG. 11 is a plan view of the horizontal clamp mechanism 40.
[0010]
As shown in FIGS. 1 to 3, a bar material processing apparatus 100 corresponding to the bar material processing apparatus of the present invention is roughly divided into a gantry 10 (apparatus main body), a cutter device 20, and two sets of centering centered on the gantry 10. A unit 50 and the like are provided. The centering unit 50 corresponds to the centering means in the present invention, and the cutter device 20 corresponds to the processing means in the present invention.
[0011]
A pair of rails 12 extending in the longitudinal direction (X-axis direction) of the timber W (work) is provided on the upper surface of the gantry 10. The rail 12 is configured to support the cutter device 20 and to guide the cutter device 20 in the longitudinal direction (X-axis direction) of the square bar W in conjunction with the operation of the motor 14. The motor 14 is attached to the side of the gantry 10 and is configured to operate the belt 16 connected to a bracket 22b provided on the cutter device 20 side. That is, when the motor 14 is driven, the cutter device 20 operates via the belt 16, the bracket 22b, and the like.
[0012]
The cutter device 20 includes a cutter truck 22, a total of four engaging members 22 a engaging the rails 12 on the lower surface of the cutter truck 22, a bracket 22 b connecting the cutter truck 22 and the belt 16, a horizontal cutter 26, and a vertical cutter. 27, a motor 28 and the like. The horizontal plane cutter 26 corresponds to the first cutter in the present invention, and the vertical plane cutter 27 corresponds to the second cutter in the present invention.
The horizontal plane cutter 26 has a processing blade for processing the horizontal plane of the square bar W. The vertical surface cutter 27 has a processing blade for processing the vertical surface of the bar W, and the outer diameter of the processing blade is larger than the outer diameter of the processing blade of the horizontal plane cutter 26. The horizontal plane cutter 26 and the vertical plane cutter 27 are connected to the same rotating shaft, and the rotating shaft is driven by a motor 28. Accordingly, the horizontal plane cutter 26 and the vertical plane cutter 27 are integrally driven to rotate via the motor 28.
[0013]
The cutter carriage 22 has a horizontal operation mechanism that horizontally moves the cutter device 20 in the horizontal direction (Y-axis direction), and a lifting operation mechanism that moves the cutter device 20 up and down in the vertical direction (Z-axis direction). The cutter carriage 22 enables the position adjustment of the horizontal plane cutter 26 and the vertical plane cutter 27 with respect to the square bar W. As shown in FIG. 4, the cutter carriage 22 includes a horizontal base cutter 26, a vertical plane cutter 27, a first base body 23 to which a motor 28 and the like are fixed, a third base body 25 to which an engaging member 22a is attached, It has a second base body 24 disposed between the first base body 23 and the third base body 25. The third base member 25 is provided with the above-described engaging member 22a on the lower surface thereof, and is provided with a ball screw 25a screwed with a nut member 24a attached to the second base member 24 on the upper surface thereof. When the ball screw 25a is rotationally driven by a driving unit (not shown), the second base body 24 is movable in the horizontal direction (Y-axis direction) with respect to the third base body 25 (horizontal operation). mechanism).
[0014]
Further, as shown in FIG. 5, a pair of nut members 23a is provided between the first base body 23 and the second base body 24. The nut member 23 a is configured such that its upper surface (inclined portion) is slidable with respect to the lower surface (inclined portion) of the first base body 23, and its lower surface is slidable with respect to the upper surface of the second base body 24. Is configured. The nut member 23a has a screw groove that is screwed into the thread of the ball screw 23b. When the ball screw 23b is rotationally driven by a driving unit (not shown), the nut member 23a moves in the X-axis direction. In addition, since the screw thread of the ball screw 23b is formed in the left and right directions opposite to each other (see FIG. 5), the pair of nut members 23a move in a direction toward or away from each other with the rotation of the ball screw 23b. It will be. When the pair of nut members 23a approach each other, their upper surfaces (inclined portions) press the lower surface (inclined portions) of the first base body 23, thereby raising the first base body 23. Conversely, when the pair of nut members 23a move away from each other, the first base body 23 descends. Thus, the first base member 23 moves up and down with respect to the second base member 24 with the rotation of the ball screw 23b (elevation operation mechanism).
[0015]
Each centering unit 50 is movable in the longitudinal direction (X-axis direction) of the bar W by a driving mechanism (not shown), and can be set at any position in the longitudinal direction with respect to the bar W. The centering unit 50 includes a vertical clamp mechanism 30 and a horizontal clamp mechanism 40. The rectangular bar W is clamped by these two clamp mechanisms to perform the centering operation of the rectangular bar W. The centering unit 50 is of a so-called centering type in which the center of centering coincides with the center of the square bar W.
[0016]
The vertical clamp mechanism 30 is means for clamping (pinching) the square bar W in the vertical direction, and is provided at two places in the present embodiment. As shown in FIGS. 6 to 8, the vertical clamp mechanism 30 includes a fixed base body 31, a moving base body 32, ball screws 33 and 35, a vertical fixed clamp 34, a clamp motor 36 for driving the ball screw 35 to rotate, and the like. It is configured.
[0017]
The nut member 32 a attached to the movable base body 32 is provided with a thread groove that is screwed into the thread of the ball screw 33 attached to the fixed base body 31. When the ball screw 33 is rotationally driven by a driving means (not shown), the movable base body 32 moves in a direction perpendicular to the fixed base body 31 (Z-axis direction). At this time, the guide member 31 a on the fixed base body 31 guides the movable base body 32. The upper and lower vertical fixing clamps 34 are provided with screw grooves to be screwed with the threads of the ball screw 35 attached to the moving base body 32. When the ball screw 35 is driven to rotate using the clamp motor 36, the vertically fixed clamp 34 moves in the vertical direction (Z-axis direction). The ball screw 35 is formed so that the directions of the threads are opposite in the vertical direction (see FIGS. 6 and 7). Therefore, when the ball screw 35 rotates in a predetermined direction, the vertical fixing clamps 34 in the upper and lower directions move closer to each other. Or they will move in the direction away from each other. When the upper and lower vertical fixing clamps 34 move toward each other and come into contact with the square bar W, the square bar W is clamped (nipped) in the vertical direction (Z-axis direction), and the upper and lower vertical fixing clamps 34 move away from each other. , The clamp in the vertical direction is released.
[0018]
The horizontal clamp mechanism 40 is a means for clamping (pinching) the square bar W in the horizontal direction, and is provided at two places in the present embodiment. As shown in FIGS. 9 to 11, the horizontal clamp mechanism 40 includes a fixed base body 41, a movable base body 42, ball screws 43 and 45, a horizontal fixed clamp 44, a clamp motor 46 for driving the ball screw 45 to rotate, and the like. It is configured.
[0019]
The bracket 42 a attached to the movable base body 42 is provided with a thread groove to be screwed with the thread of the ball screw 43 attached to the fixed base body 41. When the ball screw 43 is rotationally driven using a driving means (not shown), the movable base body 42 moves in the horizontal direction (Y-axis direction) with respect to the fixed base body 41. At this time, the guide member 41a on the fixed base body 41 guides the movable base body. The upper and lower horizontal fixing clamps 44 are provided with screw grooves which are screwed into the threads of a ball screw 45 attached to the moving base body 42. When the ball screw 45 is rotationally driven using the clamp motor 46, the horizontal fixed clamp 44 moves in the horizontal direction (Y-axis direction). The ball screw 45 is formed so that the direction of the screw thread is opposite in the upper and lower directions. Therefore, when the ball screw 45 rotates in a predetermined direction, the upper and lower horizontal fixing clamps 44 move in a direction approaching each other or away from each other. It will be. When the upper and lower horizontal fixing clamps 44 move toward each other and come into contact with the square bar W, the square bar W is clamped (nipped) in the horizontal direction (Y-axis direction), and the upper and lower horizontal fixing clamps 44 move away from each other. , The clamp (nipping) in the horizontal direction (Y-axis direction) is released.
[0020]
Next, a method of processing the bar W by the bar processing apparatus 100 having the above configuration will be described with reference to FIGS. Here, FIG. 12 is a diagram illustrating an appearance of the square bar W that has been deformed after sawing or drying. FIG. 13 is a diagram showing a horizontal clamping operation and a vertical clamping operation of the square bar W. FIG. 14 is a diagram showing the vertical clamping position of the square bar W. FIG. 15 is a flowchart showing the processing by the square bar processing apparatus 100. FIG. 16 is a diagram showing an aspect in which a horizontal reference plane S1 and a vertical reference plane S2 are formed on a square bar W. FIG. 17 is a diagram showing an embodiment in which square members W1 to W3 having different cross-sectional shapes are cut by a clamp reference. FIG. 18 is a diagram showing an embodiment in which square members W1 to W3 having different cross-sectional shapes are cut on the basis of a cutter. In FIGS. 12 and 14, the deformation is exaggerated in order to clarify the deformed state of the square bar W.
[0021]
In this embodiment, as shown in FIG. 12, the square bar processing device 100 is used for pre-processing when the deformed square bar W is processed into a target square bar T (axis L) having substantially no deformation. Here, “pre-processing” refers to forming a horizontal reference plane and a vertical reference plane corresponding to the target square bar T on the square bar W. After forming a horizontal reference plane and a vertical reference plane on the square bar W, four-sided machining with a four-plane planner is performed with reference to the horizontal reference plane and the vertical reference plane to finally obtain a desired target square bar T.
[0022]
The target timber T can be obtained, for example, by sequentially performing each step of the flowchart shown in FIG.
First, the centering operation of the square bar W is performed by operating the centering unit 50 having the above configuration. This centering operation is performed by performing the vertical clamping operation shown in step S10 and the horizontal clamping operation shown in step S20. In step S10, by driving the drive clamp motor 36 of the vertical clamp mechanism 30, the ball screw 35 rotates in a predetermined direction, and a pair of vertical fixed clamps 34 screwed to the ball screw 35 are arranged as shown in FIG. Move toward each other. As a result, a clamping operation in the vertical direction (Z-axis direction) of the square bar W is performed.
[0023]
In step S20, by driving the drive clamp motor 46 of the horizontal clamp mechanism 40, the ball screw 45 rotates in a predetermined direction, and the pair of horizontal fixed clamps 44 screwed to the ball screw 45 is as shown in FIG. Move toward each other as shown. As a result, the clamping operation in the horizontal direction (Y-axis direction) of the square bar W is performed. At the clamp position where the centering operation has been performed in steps S10 and S20 in this way, as shown in FIG. 14, the amount of machining of the bar W with respect to the target bar T in the vertical direction is substantially the same in the vertical direction at each clamp position. That is, a1 ≒ a2 and b1 ≒ b2. In the present embodiment, a position moved by about 25% of the entire length from both ends of the square bar W is set as the clamp position. That is, the distance from the clamp position to the end of the square bar W is 25% of the entire length on both the left and right sides. As a result, warpage, bending, twisting, and the like are evenly distributed, and the amount of cutting during re-grinding can be minimized. Steps S10 and S20 correspond to the first step in the present invention.
[0024]
Thereafter, in step S30, the clamp operation of the square bar W by the vertical fixing clamp 34 of the vertical clamp mechanism 30 is released. In this case, the ball motor 35 is rotated by driving the clamp motor 36 in the direction opposite to the direction of the vertical clamp operation in step S10. As a result, the pair of vertical fixing clamps 34 move in the direction away from each other (vertical clamp release direction), and the movable area of the cutter device 20 that subsequently performs the cutting of the square bar is secured.
[0025]
Next, in step S40, the horizontal reference plane S1 is formed on the lower surface Wa of the square bar W using the cutter device 20, and the vertical reference surface S2 is formed on the side surface Wb of the square bar W. The horizontal reference plane S1 is a plane parallel to the horizontal plane of the target timber T, and the vertical reference plane S2 is a plane parallel to the vertical plane of the target timber T. This step S40 corresponds to the second and third steps in the present invention.
As shown in FIG. 16, a horizontal plane cutter 26 and a vertical plane cutter 27 act on the lower surface Wa of the square bar W from below, and furthermore, these two cutters are moved in the longitudinal direction of the square bar W to cut the square bar W. . In this case, both cutters can be moved in the horizontal direction (Y-axis direction) and the vertical direction (Z-axis direction) by operating the cutter carriage 22, and both cutters can be moved in the longitudinal direction by operating the motor 14. (In the X-axis direction). At this time, since the horizontal cutter 26 and the vertical cutter 27 have different cutter outer diameters, the square bar W is processed into a step shape as shown in FIG. Then, the timber W is cut until the boundary 29 between the horizontal cutter 26 and the vertical cutter 27 substantially coincides with the corner Ta of the target timber T. As a result, the reference portion Wc of the cut square bar W substantially coincides with the corner portion Ta of the target square bar T. At this time, the distance t1 between the horizontal plane of the target rectangular bar T and the horizontal reference plane S1 and the distance t2 between the vertical plane and the vertical reference plane S2 of the target rectangular bar T are both set to about 1 to 2 mm, and the dimensional difference is subsequently reset. It is preferable to use it as a processing allowance at the time of processing. Thereby, re-grinding can be performed more rationally. In the re-machining, the difference between the target square T and the square W after the cutting including the machining allowance is deleted.
[0026]
In addition, since this cutting can be performed by changing the relative positions of the square bar W and the horizontal plane cutter 26 and the vertical plane cutter 27 (cutter device 20), two cutting operations are performed depending on which member is moved. There is a form. In other words, there is a first mode in which the side of the cutter device 20 is moved with respect to the square bar W (clamp reference), and a second mode in which the square bar W is moved with respect to the side of the cutter device 20 (cutter standard).
[0027]
In the first mode (clamp reference), the rectangular bar W is fixed with reference to the clamp position of the bar W by the horizontal clamp mechanism 40, and the cutting device 20 is moved with respect to the bar W to perform cutting. As shown in FIG. 17, in the first embodiment, when cutting square members W1 to W3 having different cross-sectional shapes, the position on the side of the cutter device 20 changes and the reference portions W1c, W2c, and W3c of the respective square members are changed. Only when the position changes, the clamp position always coincides with the central axis lines P1 to P3 of the square members W1 to W3.
[0028]
On the other hand, in the second mode (cutter reference), the cutting is performed by fixing the position of the cutter device 20 as a reference and moving the square bar W clamped by the horizontal clamp mechanism 40 with respect to the cutter device 20 side. . As shown in FIG. 18, in the second embodiment, when cutting square bars W1 to W3 having different cross-sectional shapes, only the clamp position changes and the positions of the central axis lines P1 to P3 of the square bars W1 to W3 change. Thus, the position on the side of the cutter device 20 and the positions of the reference portions W1c, W2c, W3c of the respective rectangular pieces always coincide.
[0029]
The square bar W on which the horizontal reference plane S1 and the vertical reference plane S2 are formed in Step 40 is subjected to re-grinding in Step S50. In this re-grinding process, a general four-sided planner can be used. Since the configuration of the four-sided canna board is known, a detailed description of the configuration will be omitted. At the time of re-grinding, the horizontal reference plane S1 and the vertical reference plane S2 of the timber W are aligned with reference positions on the side of the four-plane planner board, and the material is fed in that state, whereby the re-grinding processing by the four-plane planer is performed. Accuracy increases.
[0030]
As described above, according to the present embodiment, the use of the centering unit 50 having the above-described configuration is effective, for example, for performing centering work that does not depend on skilled workers. In addition, since the standard square T is used as a reference for centering, warpage, bending, twisting, and the like are evenly allocated, and the cutting amount during re-grinding can be reduced. In particular, by setting the distance from the clamp position to the end of the bar W to be 25% of the entire length on both the left and right sides, the cutting amount during re-grinding can be further reduced.
Further, according to the present embodiment, by forming the horizontal reference plane S1 and the vertical reference plane S2 corresponding to the desired target square bar T, subsequent re-grinding can be performed rationally. In particular, since the horizontal reference plane S1 and the vertical reference plane S2 are formed in advance before the re-rolling, it is not necessary to retract the pressing roll (feeding roll) during the re-rolling, and the feeding force can be maintained.
In addition, according to the present embodiment, since the square bar W is cut using the horizontal plane cutter 26 and the vertical plane cutter 27 that operate integrally, the configuration of the processing means is simplified, and the horizontal bar is quickly mounted on the square bar. The reference plane S1 and the vertical reference plane S2 can be formed.
Further, according to the present embodiment, since the square bar processing device 100 can be used for pre-processing an existing four-sided planner board, it is not necessary to newly remodel the four-sided plane board, and it is economical.
Further, according to the present embodiment, since the cutter device 20 that travels and cuts in parallel with the virtual square bar position is used, accurate horizontal reference plane S1 and vertical reference plane S2 relating to the target square bar T can be machined. .
[0031]
[Other embodiments]
Note that the present invention is not limited to the above-described embodiment, and various applications and modifications are conceivable. For example, each of the following embodiments to which the above embodiment is applied can be implemented.
[0032]
(A) In the above-described embodiment, the case where the lower surface Wa and the side surface Wb of the square bar W are cut in parallel using the individual horizontal plane cutter 26 and the vertical plane cutter 27 that are integrally operated by the motor 28 has been described. However, a configuration in which the lower surface Wa and the side surface Wb of the square bar W are sequentially cut using one rotating cutter may be used.
[0033]
(B) In the above-described embodiment, the case where the clamp operation is released only on the side of the vertical clamp mechanism 30 and the cutter device 20 is operated from below the square bar W at the time of cutting by the cutter device 20 has been described. It is also possible to use a configuration in which the clamping operation is released only on the side of the clamp mechanism 40 and the cutter device 20 is operated from the side of the square bar W.
[0034]
(C) In the above embodiment, the case where the horizontal reference plane S1 and the vertical reference plane S2 are formed in the square bar W by the cutting process using the cutter device 20 has been described, but a grinder or the like is used instead of the cutting process using the cutter device 20. Grinding can also be used.
[0035]
(D) In the above-described embodiment, the case where the square bar processing device 100 is used for the pre-processing of the re-grinding process using the four-plane planer is described. The present invention can also be applied to a pre-processing technique for re-grinding using a combination of upper and lower two-sided canner boards or a combination of various cutters and upper and lower two-sided canner boards.
[0036]
【The invention's effect】
As described above, according to the present invention, when reshaping a deformed square bar after sawing or drying to a predetermined target square bar, a square bar processing technology effective for performing the reshaping process rationally Can be realized.
[Brief description of the drawings]
FIG. 1 is a front view showing an outline of a square bar processing apparatus 100. FIG.
FIG. 2 is a plan view showing an outline of the square bar processing apparatus 100. FIG.
FIG. 3 is a side view showing an outline of the square bar processing apparatus 100.
4 is a side view of the cutter device 20. FIG.
5 is a front view of the cutter device 20. FIG.
FIG. 6 is a side view of the vertical clamp mechanism 30.
FIG. 7 is a rear view of the vertical clamp mechanism 30.
8 is a plan view of the vertical clamp mechanism 30. FIG.
FIG. 9 is a side view of the horizontal clamp mechanism 40.
FIG. 10 is a bottom view of the horizontal clamp mechanism 40.
11 is a plan view of the horizontal clamp mechanism 40. FIG.
FIG. 12 is a view showing the appearance of a square bar W deformed after sawing or drying.
FIG. 13 is a view showing a horizontal clamping operation and a vertical clamping operation of the square bar W.
FIG. 14 is a view showing a vertical clamping position of a square bar W;
FIG. 15 is a flowchart showing a processing process by the square bar processing device 100.
FIG. 16 is a diagram showing an aspect in which a horizontal reference plane S1 and a vertical reference plane S2 are formed on a square bar W;
FIG. 17 is a view showing an embodiment in which square members W1 to W3 having different cross-sectional shapes are cut by a clamp reference.
FIG. 18 is a view showing an embodiment in which square members W1 to W3 having different cross-sectional shapes are cut by a cutter reference.
[Explanation of symbols]
10 ... Stand
20 ... Cutter device
22 ... Cutter trolley
26 ... Horizontal cutter
27 ... Vertical cutter
29 ... Boundary
30 Vertical clamp mechanism
34 Vertical clamp
40 ... Horizontal clamp mechanism
44 ... Horizontal fixed clamp
50 ... Centering unit
100 ... Square material processing device
S1: Horizontal reference plane
S2: Vertical reference plane
T: target square timber
W ... Square lumber

Claims (4)

When performing the reshaping process of the square bar as a predetermined target square bar, a square bar processing device for processing the square bar into a shape corresponding to the target square bar,
A centering means for clamping the square bar in the horizontal direction and the vertical direction on the apparatus main body and for aligning the center axis of the square bar with the centering center; Processing means for processing so as to be a parallel horizontal reference plane, and processing such that a second plane perpendicular to the first plane is set as a vertical reference plane parallel to a vertical plane of the target square bar. Characteristic square bar processing equipment. It is a square bar processing device according to claim 1,
The processing means includes a first cutter for cutting the first surface, and a second cutter for cutting the second surface, and the first and second cutters operate integrally. An apparatus for processing a timber, wherein When performing the re-grinding process of the square bar as a predetermined target square bar, a method of processing a square bar to process the square bar into a shape corresponding to the target square bar,
A first step of clamping the square bar in the horizontal and vertical directions and aligning the center axis of the square bar with the centering center; and setting a first surface of the centered square bar parallel to a horizontal plane of the target square bar A second step of processing to be a reference plane, and a third step of processing a second plane perpendicular to the first plane to be a vertical reference plane parallel to a vertical plane of the target square bar. And a method for processing a square bar. It is a method of processing a timber according to claim 3,
The second and third steps are performed in parallel using a first cutter for cutting the first surface and a second cutter for cutting the second surface. The processing method of square timber.

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