JP3766679B1 - Method for injecting chemicals into wood and the wood - Google Patents
Method for injecting chemicals into wood and the wood Download PDFInfo
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- JP3766679B1 JP3766679B1 JP2005211308A JP2005211308A JP3766679B1 JP 3766679 B1 JP3766679 B1 JP 3766679B1 JP 2005211308 A JP2005211308 A JP 2005211308A JP 2005211308 A JP2005211308 A JP 2005211308A JP 3766679 B1 JP3766679 B1 JP 3766679B1
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- 239000002023 wood Substances 0.000 title claims abstract description 96
- 239000000126 substance Substances 0.000 title claims abstract description 15
- 238000000034 method Methods 0.000 title claims description 21
- 239000003814 drug Substances 0.000 claims abstract description 47
- 230000006835 compression Effects 0.000 claims abstract description 45
- 238000007906 compression Methods 0.000 claims abstract description 45
- 238000002347 injection Methods 0.000 claims abstract description 14
- 239000007924 injection Substances 0.000 claims abstract description 14
- 239000011148 porous material Substances 0.000 claims abstract description 14
- 229940079593 drug Drugs 0.000 claims description 21
- 238000007493 shaping process Methods 0.000 claims description 3
- 239000013043 chemical agent Substances 0.000 claims description 2
- 230000002093 peripheral effect Effects 0.000 description 9
- 238000004513 sizing Methods 0.000 description 5
- 230000007246 mechanism Effects 0.000 description 4
- 230000035515 penetration Effects 0.000 description 4
- 230000002421 anti-septic effect Effects 0.000 description 3
- 238000005553 drilling Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000002950 deficient Effects 0.000 description 2
- 230000008595 infiltration Effects 0.000 description 2
- 238000001764 infiltration Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 241000257303 Hymenoptera Species 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Abstract
【課題】ＪＡＳの基準を完全に満たすように木材に薬剤を浸透させることができ、かつ強度の低下は１０％未満に抑える。
【解決手段】圧縮加工装置１で円柱状の木材５を表面側から圧縮すると共に略八角柱状に整形した後、インサイジング加工装置６により木材５の表面側全体に細孔をあけ、この孔あけした木材５を薬剤加圧注入装置１４の加工用タンク１７内に収容して、該タンク１７内で前記木材５に薬剤１５を加圧注入する。
【選択図】 図１[PROBLEMS] To infiltrate a wood with a chemical so as to completely satisfy the JAS standard, and to suppress a decrease in strength to less than 10%.
The compression processing device 1 compresses a cylindrical wood 5 from the surface side and shapes it into a substantially octagonal prism shape, and then drills pores in the entire surface side of the wood 5 by an insizing processing device 6. The finished wood 5 is accommodated in the processing tank 17 of the medicine pressure injection device 14, and the medicine 15 is pressure-injected into the wood 5 in the tank 17.
[Selection] Figure 1
Description
本発明は、木材に防腐・防蟻用等の薬剤（薬液）を注入する方法、及びその注入方法により薬剤を浸透させた木材に関するものである。 The present invention relates to a method for injecting a chemical (chemical solution) for antiseptic and ant protection into wood, and to wood into which the chemical has been permeated by the injection method.
木材の防腐・防蟻、寸法安定、割れ止めを図るために、木材表面に薬剤を浸透させることが行われており、特に、屋外に構築される構造物に使用される木材には、防腐・防蟻用等の薬剤を浸透させる処理が欠かせないものとなっている。
木材に対する従来の薬剤注入技術として、駆動機構により回転駆動される上下一対の回転軸と、各回転軸に軸方向に等間隔で固定した円盤状をなすインサイジング刃物を備えたインサイジング加工装置（穿孔装置）を使用し、回転軸間に断面形状を矩形とした木材（角材）を挟み込み、各回転軸のインサイジング刃物を回転させることにより木材の上下の面全体に微小孔を穿孔して、この微小孔から木材内部に薬剤を浸透させるようにした技術が提案されている（例えば、特許文献１参照）。
In order to preserve wood, preserving and preventing ants, dimensional stability, and crack prevention, chemicals are infiltrated into the surface of the wood, especially for wood used in structures constructed outdoors. A treatment for infiltrating chemicals such as for ant-proofing is indispensable.
As a conventional medicine injection technique for wood, an insizing processing device comprising a pair of upper and lower rotating shafts that are rotationally driven by a driving mechanism and an insizing blade that is fixed to each rotating shaft at an equal interval in the axial direction ( Using a drilling device), sandwiching wood (square bar) with a rectangular cross-sectional shape between the rotating shafts, and rotating the insizing blade of each rotating shaft to drill micro holes in the entire upper and lower surfaces of the wood, A technique has been proposed in which a drug is infiltrated into the wood from the micropores (see, for example, Patent Document 1).
また、木材を高温で加熱しながら上下の圧密ローラ間に通して高圧で圧縮し、その後この木材に熱硬化性樹脂を塗布または含浸させることにより、木材の圧縮部分が復元する際に生じる吸収力を利用して樹脂液を木材に浸透させる技術も提案されている（例えば、特許文献２参照）。
しかしながら、上述した従来の技術では、単に薬剤に木材を浸漬して浸透させる場合に比べると、インサイジングと圧縮のいずれの方法でも木材に薬剤が染込み易くなるので、薬剤の浸透率は向上するが、木材の防腐・防蟻に関して「木材の表面から深さ１０ｃｍまでの部分に８０％以上の薬剤の浸潤度がなければならない」とする日本農林規格（ＪＡＳ）の基準を満たすことは難しく、不良品が発生する割合が大きいという問題がある。 However, in the conventional technique described above, compared with the case where the wood is simply immersed and penetrated into the drug, the drug can be easily infiltrated into the wood by either the insizing method or the compression method, so that the drug penetration rate is improved. However, it is difficult to meet the Japanese Agricultural Standards (JAS) standard regarding the antiseptic and ant protection of timber, which means that “the depth of 10 cm from the surface of the timber must have a degree of drug penetration of 80% or more” There is a problem that the rate of occurrence of defective products is large.
特に、原木の丸太やロータリー加工により丸太状にした円柱状の木材はそれが顕著である。
そこで、薬剤の浸透性を更に高めるために、インサイジング加工を２回行うと、木材表面が破壊され、強度が１０パーセント以上低下するという問題が生じる。
圧縮加工の場合も、２度行うと年輪の部分から剥落が生じ、強度が１０パーセント以上低下する。
This is particularly the case for logs of raw wood and columnar timber made into logs by rotary processing.
Therefore, if the insizing process is performed twice in order to further increase the drug permeability, there arises a problem that the wood surface is destroyed and the strength is reduced by 10% or more.
In the case of compression processing as well, if it is performed twice, peeling will occur from the annual ring portion, and the strength will decrease by 10% or more.
本発明は、このような問題を解決することが可能な木材の薬剤注入方法及びその木材を実現することを課題とする。 This invention makes it a subject to implement | achieve the chemical | medical agent injection method of the wood which can solve such a problem, and the wood.
そのため、本発明は、圧縮加工装置で木材を表面側から圧縮した後、インサイジング加工装置により前記木材の表面側全体に細孔をあけ、この孔あけした木材を加圧注入加工装置のタンク内に収容して、該タンク内で前記木材に薬剤を加圧注入することを特徴とする。 Therefore, in the present invention, after compressing wood from the surface side with a compression processing device, pores are made in the entire surface side of the wood by an insizing processing device, and the drilled wood is placed in the tank of the pressure injection processing device. And the medicine is injected into the wood under pressure in the tank.
このようにした本発明は、木材を圧縮した後、サイジング加工により細孔をあけているので、木材の圧縮部分が薬剤中で薬剤を吸収しながら復元する際に、細孔の長さが延びる等のことにより薬剤の吸収が促進されるため、薬剤が木材の芯部まで浸透することができ、そのため、「木材の外周面から深さ１０ｃｍまでの部分に８０％以上の薬剤の浸潤度がなければならない」とするＪＡＳの基準を完全に満たすことが可能となり、しかも圧縮整形加工とインサイジング加工による強度の低下は１０％未満に抑えることもできるので、不良品の発生をなくして良品率を１００％にすることができるという効果が得られる。 In the present invention as described above, since the pores are made by sizing after compressing the wood, the length of the pores is increased when the compressed portion of the wood is restored while absorbing the drug in the medicine. Since the absorption of the drug is promoted by the above, the drug can penetrate to the core of the wood. Therefore, “the degree of infiltration of the drug of 80% or more in the portion from the outer peripheral surface of the wood to the depth of 10 cm is It is possible to completely meet the JAS standard, and the strength reduction due to compression shaping and insizing processing can be suppressed to less than 10%. Of 100% can be obtained.
以下、図面を参照して本発明による木材の薬剤注入方法及びその木材の実施例について説明する。 Hereinafter, a method for injecting a chemical agent for wood according to the present invention and an embodiment of the wood will be described with reference to the drawings.
図１は発明の実施例を示すフローチャート、図２は円柱状の木材に圧縮加工を施す圧縮加工装置の側面図、図３は圧縮加工装置に使用される圧縮ローラの拡大正面図、図４は木材の斜視図、図５はインサイジング加工装置（穿孔装置）の側面図、図６はインサイジング部の正面図、図７はインサイジング加工後の木材の斜視図、図８は薬剤加圧注入装置を示す概略図、図９は薬剤の浸透状態を示す木材の断面図である。 FIG. 1 is a flowchart showing an embodiment of the invention, FIG. 2 is a side view of a compression processing apparatus for compressing cylindrical wood, FIG. 3 is an enlarged front view of a compression roller used in the compression processing apparatus, and FIG. FIG. 5 is a side view of an insizing processing device (piercing device), FIG. 6 is a front view of an insizing portion, FIG. 7 is a perspective view of the wood after insizing processing, and FIG. FIG. 9 is a schematic diagram showing the apparatus, and FIG.
まず、圧縮加工装置について説明すると、図２に示したように圧縮加工装置１は、上下に対向するように配置した金属製の複数の上部側圧縮ローラ２と金属製の複数の下部側圧縮ローラ３により構成される圧縮ローラ列を備えている。
これら各圧縮ローラ２，３は、図３に示したように外周面全周にわたる溝４を有し、この溝４は、平坦な底面４ａと、外側に向かって傾斜したテーパ面をなす左右の側面４ｂ、４ｃにより形成されている。
First, the compression processing apparatus will be described. As shown in FIG. 2, the compression processing apparatus 1 includes a plurality of metal upper side compression rollers 2 and a plurality of metal lower side compression rollers arranged so as to face each other vertically. 3 is provided.
As shown in FIG. 3, each of the compression rollers 2 and 3 has a groove 4 that extends over the entire outer peripheral surface. The groove 4 has a flat bottom surface 4a and left and right tapered surfaces that are inclined outward. The side surfaces 4b and 4c are formed.
そして、各上部側圧縮ローラ２と各下部側圧縮ローラ３における溝４の底面４間の間隔Ｐは、図２に矢印Ａで示した木材の挿入方向の上流側から下流側に向かってＰ１，Ｐ２・・・Ｐｎまで段階的に狭くなるように設定されており、図示しないモータを駆動源として各上部側圧縮ローラ２を矢印ａで示したように時計方向へ、各下部側圧縮ローラ３を矢印ｂで示したように反時計方向に回転させた状態で、図４（１）に示した円柱状の木材５を図２の右側から上部側圧縮ローラ２と下部側圧縮ローラ３間に挿入して、上下の圧縮ローラ列間を通過させると、通過終了までに各上部側圧縮ローラ２と各下部側圧縮ローラ３によって順次圧縮され、かつ各上部側圧縮ローラ２と各下部側圧縮ローラ３の溝４により木材５全体が図４（２）に示したように略八角柱状に整形される。 And the space | interval P between the bottom face 4 of the groove | channel 4 in each upper side compression roller 2 and each lower side compression roller 3 is P1, toward the downstream from the upstream of the insertion direction of the timber shown by the arrow A in FIG. P2... Pn are set to be narrowed step by step, and each upper side compression roller 3 is moved clockwise as indicated by arrow a using a motor (not shown) as a drive source. The columnar wood 5 shown in FIG. 4 (1) is inserted between the upper compression roller 2 and the lower compression roller 3 from the right side of FIG. 2 while being rotated counterclockwise as indicated by the arrow b. Then, when passing between the upper and lower compression roller rows, the upper compression rollers 2 and the lower compression rollers 3 are sequentially compressed by the end of the passage, and the upper compression rollers 2 and the lower compression rollers 3 are sequentially compressed. The whole wood 5 is shown in FIG. Uni shown is shaped into an octagonal columnar.
尚、前記各上部側圧縮ローラ２は上下動自在として、図示しない調整機構により前記間隔Ｐを調整できるようにしてあり、本実施例では木材５を２０％程度圧縮するように設定している。
円柱状の木材５は、赤身と呼ばれる芯材部分は硬く、白身と呼ばれる辺材部分は比較的柔らかいので、前記の圧縮加工装置１により主として辺材部分が圧縮されることになる。
Each upper compression roller 2 is movable up and down so that the interval P can be adjusted by an adjustment mechanism (not shown). In this embodiment, the wood 5 is set to be compressed by about 20%.
In the columnar wood 5, the core part called red is hard and the sap part called white is relatively soft, so the sap part is mainly compressed by the compression processing apparatus 1.
インサイジング加工装置６は、図５に示したように上下に対向するように配置した複数の上部側送りローラ７と、複数の下部側送りローラ８により構成されるローラ列を備え、所定のローラ間に第１のインサイジング部９と第２のインサイジング部１０が設けられている。
各上部側送りローラ７と各下部側送りローラ８は、木材５に対する所定の送り力が得られるように表面がゴム材により形成されており、図示しないステッピングモータを駆動源として各上部側送りローラ７は矢印ａで示したように時計方向へ、各下部側送りローラ８は矢印ｂで示したように反時計方向に間欠的に回転するものとなっており、従って各上部側送りローラ７と各下部側送りローラ８を回転させた状態で、前記のように略八角柱状に圧縮整形した木材５を図５の右側から上部側送りローラ２と下部側圧縮ローラ３間に挿入すると、木材５は左方向へ一定のピッチで間欠送りされながら第１のインサイジング部９を通過し、その後第２のインサイジング部１０を通過する。
As shown in FIG. 5, the insizing processing device 6 includes a roller row including a plurality of upper-side feed rollers 7 and a plurality of lower-side feed rollers 8 arranged so as to face each other in the vertical direction. A first insizing part 9 and a second insizing part 10 are provided between them.
Each upper-side feed roller 7 and each lower-side feed roller 8 are formed of a rubber material so that a predetermined feed force to the wood 5 can be obtained, and each upper-side feed roller using a stepping motor (not shown) as a drive source. 7 is clockwise as indicated by arrow a, and each lower side feed roller 8 is intermittently rotated counterclockwise as indicated by arrow b. When the wood 5 compressed and shaped into a substantially octagonal prism shape as described above is inserted between the upper side feed roller 2 and the lower side compression roller 3 from the right side of FIG. Passes through the first insizing unit 9 while being intermittently fed to the left at a constant pitch, and then passes through the second insizing unit 10.
第１のインサイジング部９は、図６（１）に示したように上下左右の四方向から進退する４個のピンヘッド１１ａ〜１１ｄを備えており、各ピンヘッド１１ａ〜１１ｄには１５０ｍｍ程度の長さを有するインサイジング（穿孔）用の図示しない多数（５０本程度）のピンが設けられていて、前記の上部側送りローラ２と下部側圧縮ローラ３により間欠送りされてくる木材５が停止したときに、図示しない油圧駆動機構により各ピンヘッド１１ａ〜１１ｄを上下左右の四方向から進出させることで、木材５の上下左右四面からその面に対してほぼ直角に内側に向かってピンを突き刺すことにより多数の孔を穿つことができる。穿孔後各ピンヘッド１１ａ〜１１ｄは退避し、これによりピンは木材５から引き抜かれる。 As shown in FIG. 6A, the first insizing unit 9 includes four pin heads 11a to 11d that advance and retreat in four directions, up, down, left, and right, and each pin head 11a to 11d has a length of about 150 mm. A large number (about 50) of pins (not shown) for insizing (perforating) having a thickness are provided, and the wood 5 intermittently fed by the upper side feed roller 2 and the lower side compression roller 3 is stopped. Sometimes, the pin heads 11a to 11d are advanced from the four directions of up, down, left, and right by a hydraulic drive mechanism (not shown), so that the pins are pierced inward from the four sides of the wood 5 substantially at right angles to the surface. Multiple holes can be drilled. After drilling, the pin heads 11a to 11d are retracted, whereby the pins are pulled out from the wood 5.
一方、第２のインサイジング部９は、図６（２）に示したように前記第１のインサイジング部９の４個のピンヘッド１１ａ〜１１ｄに対して４５度角度をずらした斜め四方向から進退する４個のピンヘッド１２ａ〜１２ｄを備えており、各ピンヘッド１２ａ〜１２ｄにはピンヘッド１１ａ〜１１ｄと同様に１５０ｍｍ程度の長さを有するインサイジング（穿孔）の図示しない多数（５０本程度）のピンが設けられていて、前記の上部側送りローラ２と下部側圧縮ローラ３により間欠送りされてくる木材５が停止したときに、図示しない油圧駆動機構により各ピンヘッド１２ａ〜１２ｄを上下左右の四方向から進出させることで、木材５の上下左右四面からその面に対してほぼ直角に内側に向かってピンを突き刺すことにより多数の孔を穿つことができる。穿孔後各ピンヘッド１１ａ〜１１ｄは退避し、これによりピンは木材５から引き抜かれる。 On the other hand, as shown in FIG. 6B, the second insizing unit 9 is viewed from four oblique directions shifted by 45 degrees with respect to the four pin heads 11a to 11d of the first insizing unit 9. Four pin heads 12a to 12d that move forward and backward are provided, and each pin head 12a to 12d has a large number (about 50) of insizing (perforation) having a length of about 150 mm as in the pin heads 11a to 11d. When a pin is provided and the wood 5 intermittently fed by the upper side feed roller 2 and the lower side compression roller 3 is stopped, the pin heads 12a to 12d are moved up, down, left and right by a hydraulic drive mechanism (not shown). By advancing from the direction, a number of holes can be drilled by piercing the pin from the top, bottom, left, and right surfaces of the wood 5 inward at approximately right angles to the surface. Can. After drilling, the pin heads 11a to 11d are retracted, whereby the pins are pulled out from the wood 5.
このような構成を有するインサイジング加工装置６により、第７図に示したように木材５の全長にわたって一定の深さの細孔１３を外周面全域に一様にかつ木材５の表面に剥離等を生じることなくあけることができる。
薬剤注入装置１４は図８に示したように防腐・防蟻等の薬剤（薬液）１５を貯留する貯留タンク１６と複数本の木材５をまとめて収納可能とした加工用タンク１７と、両者を接続したパイプ１８、及び図示しない真空ポンプや加圧手段等を備えており、図８（１）のように空の状態にした加工用タンク１７内に木材５を収納して、加工用タンク１７内を真空ポンプにより真空にすることで木材５内の空気抜きをした後、貯留タンク１６からパイプ１８を通じて薬剤１５を加工用タンク１７に供給して、加工用タンク１７内を薬剤１５で満たし、図示しない加圧手段により貯留タンク１６側から加工用タンク１７内の薬剤１５を例えば１０キロ／ｃｍ２以上の圧力で加圧することにより、木材５に薬剤１５を浸透させるものとなっている。
With the insizing processing device 6 having such a configuration, as shown in FIG. 7, the pores 13 having a constant depth over the entire length of the wood 5 are peeled uniformly over the entire outer peripheral surface and on the surface of the wood 5. It can be opened without producing.
As shown in FIG. 8, the chemical injection device 14 includes a storage tank 16 for storing chemicals (chemical solutions) 15 such as antiseptic and ant proof, a processing tank 17 capable of storing a plurality of pieces of wood 5 together, and both. The pipe 18 is connected, and a vacuum pump and a pressurizing means (not shown) are provided. The wood 5 is stored in the empty processing tank 17 as shown in FIG. After the inside of the wood 5 is evacuated by evacuating the inside with a vacuum pump, the medicine 15 is supplied from the storage tank 16 through the pipe 18 to the processing tank 17, and the inside of the processing tank 17 is filled with the medicine 15. The medicine 15 is infiltrated into the wood 5 by pressurizing the medicine 15 in the processing tank 17 from the storage tank 16 side with a pressure of 10 kg / cm 2 or more, for example.
次に、第１図により本発明の木材の薬剤注入方法及びその方法により得られる木材の実施例についてＳで示したステップに従って説明する。
<Ｓ１> 円柱状の木材５（図４（１）参照）を図２及び図３で説明した圧縮加工装置１により圧縮加工を行って、木材５全体を２０％程度圧縮すると共に略八角柱状に整形する（図４（２）参照）。
<Ｓ２> 上述したように略八角柱状に圧縮整形した木材５に対し、図５及び図６で説明したインサイジング加工装置６によりインサイジング加工を行い、木材５の全長にわたって一定の深さの細孔１３を外周面全域に一様にあける（図７参照）。
<Ｓ３> 上述したように細孔１３をあけた木材５を、図８で説明した薬剤加圧注入装置１４の加工用タンク１７内に収納し、図示しない真空ポンプにより加工用タンク１７内を真空にすることで木材５内の空気抜きをする。
<Ｓ４> その後、貯留タンク１６からパイプ１８を通じて薬剤１５を加工用タンク１７に供給して、加工用タンク１７内を薬剤１５で満たす。
<Ｓ５> 図示しない加圧手段により貯留タンク１６側から加工用タンク１７内の薬剤１５を例えば１０キロ／ｃｍ２以上の圧力で加圧することにより、木材５に薬剤１５を注入して浸透させる。このとき木材１５は薬剤１５の浸透に伴って圧縮加工装置１でほぼ圧縮された分だけ膨らんで円柱状に復元する。
<Ｓ６> 最後に、加工用タンク７内の薬剤１５を貯留タンク１６側に戻し、加工用タンク１７内を真空にすることで、木材５表面の余分な薬剤１５を取り除いてから、木材５を加工用タンク１７内から取り出す。
Next, referring to FIG. 1, an example of the method of injecting wood according to the present invention and an example of wood obtained by the method will be described in accordance with the steps indicated by S.
<S1> The cylindrical wood 5 (see FIG. 4 (1)) is compressed by the compression processing apparatus 1 described with reference to FIGS. 2 and 3, and the whole wood 5 is compressed by about 20% and is formed into a substantially octagonal prism shape. Shape (see FIG. 4B).
<S2> As described above, the wood 5 compressed and shaped into a substantially octagonal columnar shape is subjected to insizing processing by the insizing processing device 6 described with reference to FIGS. The holes 13 are formed uniformly over the entire outer peripheral surface (see FIG. 7).
<S3> As described above, the wood 5 having the pores 13 is accommodated in the processing tank 17 of the medicine pressurizing and injection device 14 described with reference to FIG. 8, and the processing tank 17 is evacuated by a vacuum pump (not shown). By doing so, the air in the wood 5 is vented.
<S4> Thereafter, the medicine 15 is supplied from the storage tank 16 through the pipe 18 to the processing tank 17, and the inside of the processing tank 17 is filled with the medicine 15.
<S5> By pressurizing the medicine 15 in the processing tank 17 from the storage tank 16 side by a pressure means (not shown) with a pressure of, for example, 10 kg / cm 2 or more, the medicine 15 is injected and infiltrated into the wood 5. At this time, the wood 15 swells by the amount substantially compressed by the compression processing apparatus 1 along with the permeation of the medicine 15 and is restored to a cylindrical shape.
<S6> Finally, the medicine 15 in the processing tank 7 is returned to the storage tank 16 side, and the inside of the processing tank 17 is evacuated to remove excess medicine 15 on the surface of the wood 5, and then the wood 5 is removed. Remove from the processing tank 17.
このような薬剤注入方法により薬剤１５を注入した木材は、図９（１）に示したように赤身と呼ばれる芯部まで薬剤１５が浸透（斜線は薬剤の浸透部分を示す）し、木材５の全周にわたって外周面から内側に深さ１０ｃｍ以上薬剤１５が浸透したものとなる。
これに対して、例えばインサイジング加工のみであると、前記の薬剤注入装置１４により薬剤１５を注入しても、図９（２）に示したように薬剤１５は木材５の外周面近傍の白身と呼ばれる辺部にしか浸透（斜線は薬剤の浸透部分を示す）せず、外周面から深さ１０ｃｍに浸透する割合は最大で８０パーセント程度であり、「ＪＡＳ」の基準を満たすことのできない不良品が少なからず発生する。圧縮加工のみの場合も同様である
上述した実施例により薬剤１５が木材５の芯部まで浸透する理由は、木材５を圧縮した後、サイジングにより細孔をあけているので、木材５の圧縮部分が薬剤１５中で薬剤を吸収しながら復元する際に、細孔の長さが延びること、及び加工用タンク１７内を真空にすることで木材５内の空気抜きをすること等の相乗作用により薬剤１５の吸収が促進されることによる。
The wood into which the medicine 15 has been injected by such a medicine injection method penetrates the core 15 called red as shown in FIG. 9 (1) (the hatched area indicates the portion where the medicine has penetrated). The drug 15 penetrates from the outer peripheral surface to the inner side by a depth of 10 cm or more over the entire circumference.
On the other hand, for example, when only the insizing process is performed, even if the medicine 15 is injected by the medicine injection device 14, the medicine 15 is white in the vicinity of the outer peripheral surface of the wood 5 as shown in FIG. It penetrates only to the side called “slash” (the hatched line indicates the part where the drug penetrates), and the rate of penetration from the outer peripheral surface to a depth of 10 cm is about 80% at the maximum, and it cannot satisfy the “JAS” standard. Not a few good products are generated. The same applies to the case of only compression processing. The reason why the drug 15 permeates to the core of the wood 5 according to the above-described embodiment is that, after the wood 5 is compressed, pores are opened by sizing. Is restored by absorbing the drug in the drug 15 by synergistic actions such as extending the length of the pores and evacuating the wood 5 by evacuating the processing tank 17. This is because the absorption of 15 is promoted.
従って、上述した実施例によれば、「木材の外周面から深さ１０ｃｍまでの部分に８０％以上の薬剤の浸潤度がなければならない」とする「ＪＡＳ」の条件を完全に満たすことが可能となり、しかも圧縮整形加工とインサイジング加工による強度の低下は１０％未満に抑えられることも確認されたので、不良品の発生をなくして良品率を１００パーセントにすることができる。 Therefore, according to the above-described embodiment, it is possible to completely satisfy the condition of “JAS” that “the portion from the outer peripheral surface of the wood to the depth of 10 cm must have a degree of drug infiltration of 80% or more”. In addition, it was confirmed that the strength reduction due to the compression shaping process and the insizing process can be suppressed to less than 10%, so that the yield of defective products can be eliminated and the yield rate can be 100%.
尚、上述した実施例では円柱状の木材を例にして説明したが、角柱状の木材に対しても同様に薬剤を加圧注入することが可能であり、同様の効果が得られる。
その場合、圧縮加工装置１の上側圧縮ローラ２と下側圧縮ローラ３や溝４を有する必要はなく、外周面が平坦なものでよい
またサイジング加工装置６は、第２のインサイジング部１０を省略することができ、第１のインサイジング部１０の最低上下（または左右）２面からピンを打ち込む一対のピンヘッドを備える構造のものを用いることができる。
In the above-described embodiment, the columnar wood has been described as an example. However, it is possible to similarly inject the medicine into the prismatic wood, and the same effect can be obtained.
In that case, it is not necessary to have the upper compression roller 2 and the lower compression roller 3 or the groove 4 of the compression processing apparatus 1, and the outer peripheral surface may be flat. The sizing processing apparatus 6 includes the second insizing unit 10. A structure having a pair of pin heads for driving pins from the lowest two upper and lower (or left and right) surfaces of the first insizing portion 10 can be used.
１ 圧縮加工装置
２ 上側圧縮ローラ
３ 下側圧縮ローラ
４ 溝
５ 木材
６ インサイジング加工装置
７ 上側送りローラ
８ 下側送りローラ
９ 第１のサイジング部
１０ 第２のサイジング部
１１ａ〜１１ｄ ピンヘッド
１２ａ〜１２ｄ ピンヘッド
１３ 細孔
１４ 薬剤加圧注入装置
１５ 薬剤
１６ 貯留タンク
１７ 加圧タンク
１８ パイプ
DESCRIPTION OF SYMBOLS 1 Compression processing apparatus 2 Upper compression roller 3 Lower compression roller 4 Groove 5 Wood 6 Insizing processing apparatus 7 Upper feed roller 8 Lower feed roller 9 1st sizing part 10 2nd sizing part 11a-11d Pin head 12a-12d Pin head 13 Pore 14 Drug pressure injection device 15 Drug 16 Storage tank 17 Pressure tank 18 Pipe
Claims (5)
前記木材に薬剤を加圧注入する前に、前記タンク内を真空にして前記木材の空気を抜くことを特徴とする木材の薬剤注入方法。 The method of injecting wood according to claim 1 or 2,
A method for injecting a wood drug, wherein the inside of the tank is evacuated and the air in the wood is evacuated before the medicine is pressure-injected into the wood.
After compressing from the cylindrical surface side with the compression processing device and shaping into a substantially octagonal column shape, the first insizing portion of the insizing processing device opens pores on the entire four surfaces of the approximately octagonal column shape, 2. A wood having pores formed on the entire remaining four surfaces in the insizing section of 2, and accommodated in a tank of a pressure injection processing apparatus and pressure-injected with a medicine.
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| JP2005211308A JP3766679B1 (en) | 2005-07-21 | 2005-07-21 | Method for injecting chemicals into wood and the wood |
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| JP7101963B2 (en) | 2017-03-03 | 2022-07-19 | 株式会社ビシュウ | Manufacturing method of modified wood |
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| US20100116330A1 (en) | 2007-01-31 | 2010-05-13 | Tetsuyoshi Inoue | Solar cell module, solar cell wiring member, and method of manufacturing solar cell module |
| KR101534132B1 (en) * | 2014-02-27 | 2015-07-07 | 이승철 | Lubriant impregnated wood piece and same the method |
| JP6348393B2 (en) * | 2014-09-30 | 2018-06-27 | 大建工業株式会社 | Method for producing modified wood |
| JP6158847B2 (en) * | 2015-02-24 | 2017-07-05 | 大建工業株式会社 | Method for injecting chemicals into wood, method for producing fire-resistant wood, method for producing antiseptic and ant-proof wood, and method for producing resin-impregnated wood |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP7101963B2 (en) | 2017-03-03 | 2022-07-19 | 株式会社ビシュウ | Manufacturing method of modified wood |
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