JP2004058548A - Hollow hole clearing device for building material - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To mechanize a hollow clearing operation for a long hollow dry wood with a large crosssectional shape. <P>SOLUTION: This hollow hole clearing device carries the hollow dry wood 7 disposed on two or a plurality of rotating top chains 2 and 2'to the bed of a device main body and fixes the hollow dry wood 7 at a specified position using clamping mechanisms 4 and 4'. In addition, the device is equipped with copying cones 9 and 9' which are installed opposite to each other at both cross sections of the wood 7 and sliding vertically and to the right/left and hollow clearing drills 10 and 10', arranged at a specified interval. The hollow hole center, of the hollow dry wood 7, which is detected by the copying cones 9 and 9' is cut by the drills 10 and 10' instead of by the copying cones 9 and 9' in a hollow clearing operation. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
[Field of the Invention]
In the present invention, a square or rectangular material, such as a pillar, a beam, a girder or a rising frame, which is taken out of a lumber at a lumber mill, is hollowed out before entering a drying process, and the surface and interior of the wood are evenly distributed in the drying process. The present invention relates to a device for filling a hollow hole of a building material for performing a hole filling operation of a hollow hole of a hollow timber for preventing cracks by drying and shortening a drying time.
[0002]
[Prior art]
Japanese Patent Application Laid-Open No. 10-47855 discloses a technique of hollowing out a building material in a hollow and artificially drying it. The characteristics of hollow dry wood are that the production process is simpler and the equipment cost is lower than glued wood, and it is a high-quality building material that can emphasize the goodness of wood. Also, in recent years, based on the results of full-scale tests, as in Europe and the United States, it has become possible to use high-strength wood for its light weight as a structural material for three-story wooden houses and large-scale wooden buildings. The cross-sectional dimensions of a single tree are 110 mm square, and the size of the joint beam is 110 mm × 350 mm, and the demand for hollow dry wood is increasing.
[0003]
However, hollow dried timber is hollowed out before entering the artificial drying process, and the surface and inside of the timber are evenly dried to prevent cracking and shorten the drying time. For use, it is necessary to firmly fill the mouth of the hollow hole. Conventionally, the hole filling work at the mouth of the hollow hole is cut off the inner diameter of the hollow hole with a drill larger than the size of the hollow hole for drying, and a plug of a round bar made of the same wood as the hollow dried wood such as pine and cypress is used with adhesive And fitted and fixed.
[0004]
Thus, the work of shaving the inner diameter of the hollow hole with the drill is called a hollow hole flattening operation. Hollow hole flattening work is not always located at the center of hollow dry wood because hollow dry wood is bent and twisted during the drying process, and hollow hole flattening is a laborious work that can not be mechanized and requires labor. there were.
[0005]
[Problems to be solved by the invention]
SUMMARY OF THE INVENTION The present invention has been made in view of the above points, and is a hollow hole shredding device for efficiently and reliably performing a hole closing operation for a hollow hole at a mouth portion by mechanizing a hollow hole shredding operation of hollow dry wood. Since building materials have become longer and have a large cross section, the supply of hollow dry wood to the hollow wiping device is also mechanized, enabling continuous work, and high productivity. Equipment can be provided.
[0006]
[Means for Solving the Problems]
In order to achieve the above object, according to the present invention, hollow dry wood is placed on two or more rotating top chains, carried on a bed of an apparatus main body, and placed in a predetermined position by a clamp mechanism. Secure the wood. At both ends of the hollow dried wood, a copying cone and a hollow countersunk drill slidable in the up, down, left, and right directions provided respectively are disposed, and the hollow hole of the hollow dried wood detected by the copying cone is provided. The hollow lashing drill at the center works in place of the copying cone to complete the hollow lashing work.
[0007]
At the same time, a taper hole slightly larger than the hollow hole was drilled at a depth of about 300 mm at both ends of the hollow dry wood by the rubbing operation. In this state, the tapered rod material is fitted and fixed as if plugging it by using an adhesive.
[0008]
Thus, according to the present invention, the hollow-cutting operation of the opening of the opening of the hollow hole of the hollow dry wood, which has conventionally depended on manual labor, is increased to increase the production efficiency, and the hollow-cutting hole by the device is easily filled. , Become solid.
[0009]
The hollow dry wood is long and has a large cross-sectional shape and is poor in handling efficiency. However, by adopting the hollow wiping device of the present invention, a particularly long and large square wood or a flat rectangular cross-section is used. Excellent effect for producing square lumber.
[0010]
Furthermore, it has been proposed that the operations of the copying cone and the hollow countersink drill of the present invention can be easily automated by NC control.
[0011]
BEST MODE FOR CARRYING OUT THE INVENTION
Embodiments of the present invention will be described in detail with reference to examples.
FIG. 1 is a plan view showing a hollow wiping device of the present invention, FIG. 2 is a front view of FIG. 1, and FIG. 3 is a side view of FIG.
FIG. 4 is an enlarged view of a main part of the present invention, FIG. 5 is an explanatory view showing a shape of a hollow wiping drill used in the hollow wiping device of the present invention, and FIGS. It is operation | movement explanatory drawing of a hollow flat drill.
[0012]
1 to 4, reference numeral 1 denotes an apparatus main body, 2 ′ denotes a top chain, 3 ′ denotes a motor for driving the top chain, and 4, 4 ′ denotes an elevating mechanism 6, 6 ′ on a bed 5. 2), a hollow dry wood fixed on the bed 5 by the clamp mechanism, and 8 and 8 'are provided to face the respective openings of the hollow dry wood 7 respectively. It is a processing head.
[0013]
The processing heads 8, 8 'are provided with copying cones 9, 9' and hollow countersunk drills 10, 10 '. In particular, the processing head 8' slides on linear rails 11a, 11b provided on the bed 5. It is movable and can correspond to the length of the hollow dry wood.
[0014]
FIG. 4 is an enlarged view of the processing head 8 portion, and the hollow dry wood 7 has a hollow hole 12 formed therein. On the head of the processing head 8, a copying cone 9 and a hollow lashing drill 10 are installed with a fixed distance therebetween, and the rotation of the copying cone 9 and the hollow lashing drill 10 is transmitted by a motor 13 as necessary.
[0015]
Further, the copying cone 9 and the hollow drill 10 mounted on the processing head 8 can be adjusted back and forth along the slide rail 14, and the copying cone 9 and the hollow drill 10 are hollow-dried by a cylinder mechanism 15. It is possible to stretch and pull in seven directions.
Further, the copying cone 9 and the hollow countersink drill 10 can be moved up and down and finely adjusted up and down by vertical movement cylinder mechanisms 16 and 17 provided below the processing head 8, and the processing head 8 is moved along the linear rails 18 and 19. By sliding, the copying cone 9 and the hollow countersink drill 10 can slide in the left-right direction with respect to the fixed hollow dry wood 7.
[0016]
Thus, the copying cone 9 installed on the processing head 8 has a conical shape. When the approximate position of the hollow hole 12 of the hollow dry wood 7 fixed on the bed 5 by the clamp mechanism 4 is detected, the cone is formed. Since it is shaped, when it is inserted into the hollow hole 12 while rotating, the left, right, up and down sliding mechanism follows, and the center of the hollow hole 12 of the hollow dry wood 1 can be determined.
[0017]
Further, the shape of the hollow countersink drill 10 which is fixed and slid with the copying cone 9 at a fixed interval has a shape shown in FIG.
In FIG. 5, reference numeral 20 denotes a fastening portion that is fastened to the driving portion of the processing head 8 by a shank, 21 denotes a cutting edge portion that forms a drill, and the cutting edge portion 21 has a tapered shape as a whole, and has a diameter toward the tip. Are arranged on the outer periphery, and cutting blades 22a, 22b, 22c,... Are arranged in a double spiral shape.
[0018]
The cutting blades 22a, 22b, 22c... Are replaceable blades, and it is convenient to lightly reshape the inner diameter of the hollow hole 12 of the hollow dry wood 7 to give a clean finish taper. In order to release shavings, the shape of the hollow hole 12 is not broken in combination with the function of the through hole 23 provided at the center of the blade.
[0019]
6 (A) to 6 (F), the operation of the copying cone 9 and the hollow countersink drill 10 will be described.
In FIG. 6A, the hollow dry wood 7 has a hollow hole 12, and the hollow dry wood 7 is fixed to the main unit by a clamp mechanism. The distance between the center of the copying cone 9 and the center of the hollow drill 10 is always fixed. When the copying cone 9 slides, the hollow drill 10 also slides at the same distance W.
[0020]
In FIG. 6 (B), the copying cone 9 projects the copying cone 9 toward the hollow hole 12 of the hollow dry wood 7 facing the same. The position where the copying cone 9 is projected may be an approximate position of the hollow hole 12, and the figure shows an example in which the conical tip of the copying cone 9 is barely connected to the inner diameter of the hollow hole 12.
[0021]
In FIG. 6C, when the copying cone 9 is further advanced, the copying cone 9 and the hollow countersink drill 10 slide on the processing head 8 (not shown) while maintaining a fixed distance W. The conical scanning cone 9 detects the center position of the hollow hole 12 in a form in which it is fitted to the inner diameter of the hollow hole 12.
[0022]
FIG. 6D shows a state in which the center position of the copying cone 9 whose center position of the hollow hole 12 is detected is fixed, and the copying cone 9 is pulled back.
[0023]
FIG. 6E shows a state in which the hollow countersink drill 10 is slid on the processing head 8 by a fixed distance W ′.
[0024]
FIG. 6 (F) shows that the hollow countersink drill 10 is advanced toward the hollow hole 12 while rotating, and the inside diameter side of the hollow hole 12 of the hollow dried wood 7 is cut off. The drawing shows a state in which a tapered hole having a depth of about 300 mm with a taper whose diameter becomes smaller is formed.
Although the description has been omitted, it goes without saying that the same operation is simultaneously performed on the processing head 8 'provided at the other end of the hollow wood 7, and a counterbore is formed.
[0025]
Thus, when a counterbore is drilled in the above operation, the hollow is firmly closed via an adhesive with a tapered rod made of the same wood as the hollow dry wood. It is.
After that, the hollow timber that has closed the hollow holes at both ends is cut into the surface and finished into a decorative material, and the tip of the wood is processed according to the purpose, such as ant processing and tenon processing, like ordinary wood. Become.
[0026]
【The invention's effect】
Thus, according to the present invention, the hollow dry wood is placed on two or more rotating top chains, carried on the bed of the apparatus main body, and placed at a predetermined position by a clamp mechanism. Is fixed. At both ends of the hollow dry wood, a copying cone slidable in the up, down, left and right directions provided opposite each other and a hollow countersink drill are arranged at fixed intervals, and the hollow detected by the copying cone is detected. An object of the present invention is to provide a hollow lashing device in which a hollow lashing drill performs a cutting operation at a hollow hole center of dry wood instead of a copying cone to complete the hollow lashing process.
[0027]
At the same time, a taper hole slightly larger than the hollow hole is drilled at a depth of about 300 mm in both groves of the hollow dried wood by the rubbing process. In this state, the hollow hole opening is filled with a tapered bar made of the same material as with a plug using an adhesive.
[0028]
Therefore, according to the present invention, the hollow slicing work at the mouth of the hollow hole of hollow dry wood, which has conventionally been relied on manually, is mechanized to increase the production efficiency, and the hollow slicing hole filling work by the device is easy and robust. Became.
[0029]
The hollow dry wood is long and has a large cross-sectional shape, and the handling efficiency is low. However, by adopting the hollow wiping device of the present invention, particularly a long, large-diameter square wood having a large cross-sectional shape or a flat material is used. Excellent effect for producing square lumber.
[0030]
Further, the operations of the copying cone and the hollow countersink drill of the present invention have excellent effects such as easy automation by NC control.
[Brief description of the drawings]
FIG. 1 is a plan view showing an embodiment of the present invention.
FIG. 2 is a front view of FIG.
FIG. 3 is a side view of FIG. 1;
FIG. 4 is an enlarged explanatory view of a main part of the present invention.
FIG. 5 is an explanatory view showing an example of the shape of a hollow flat drill.
FIG. 6 is an explanatory view of the operation of the copying cone and the hollow countersunk drill.
[Explanation of symbols]
1 apparatus main body 2, 2 'top chain 3, 3' top chain drive motor 4, 4 'clamp mechanism 5, bed 6, 6' elevating mechanism 7, hollow dry wood 8, 8 'processing head 9, 9' copying cone 10, 10 'hollow drill 11,11' linear rail 12 hollow hole 13 motor 14 sliding rail 15 cylinder mechanism 16,17 vertical movement cylinder mechanism 18,19 linear rail 20 fastening part 21 cutting edge part 22a, 22b, 22c ... cutting Knife

Claims (2)

Place the hollow dry wood on two or more top chains and carry it on the bed of the device body,
The hollow dried wood is fixed at a predetermined position by a clamp mechanism,
At both ends of the hollow dried wood, a copying cone slidable in the vertical and horizontal directions provided opposite to each other and a hollow counter drill are provided,
A hollow countersink drill is rotated at the hollow hole center position detected by the copying cone to form a hollow countersink hole instead of the scanning cone,
A hollow hole removing device for building materials characterized by the following. The shape of the hollow countersink drill forms a taper from the root to the tip,
Cutting knives are arranged in a double spiral shape on the circumference,
And a through hole is provided in the center of the blade,
A hollow shingle device for building materials, characterized in that:

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