【発明の詳細な説明】
《発明の目的｝
（産業上の利用分野〉
本発明は原材に対し一本または複数本の挽筋を形威し、
原材を挽き割るのに用いられる帯鋸盤、丸鋸盤等の鋸盤
に通用する送材装置に関するものである．
く発明の背景〉
帯鋸、丸鋸等により原材を挽き割る製材装置には、挽割
加工を直接行う鋸盤のほか、原材を保持しつつ鋸盤に原
材を供給する役割を担う送材装置が存在する．モして送
材装置としては第６図に示すようないわゆるシングルソ
ータイプの鋸盤に適用する送材装ｆｉｆｌ’や、第７Ｗ
Ｊに示すようないわゆるツインソータイプ、もしくはそ
れ以上の多重挽きの鋸盤に適用する送材装置１′等があ
る．そしてこれら各送材装置１′の駆動源としては回転
型モータＭが使用され、この回転型モータＭの回転運動
をギヤ、チェーン、ベルトまたワイヤＷ等の中間伝達部
材を介して直線運動に変換し、送材装置１′の走行駆動
がなされている．しかしこのような手法を用いた場合に
は、例えば第６、７図に示す送材装置１′にあっては、
架台の前後あるいはいずれか一方の端部にワイヤＷを固
定し、このワイヤＷをワイヤドラムＤＴ！＠き取ること
により架台８′の走行を行っているから、ワイヤ切れ、
または駆動部のチェーン切れ、ベルト切れによる架台８
′の暴走やワイヤＷの弛みによる走行の不安定さ、ある
いはこのような事態が起きた場合のワイヤＷの取り替え
に伴う時間のロス等が問題となっていた．
〈解決を試みた技術的課題〉
本発明はこのような背景に鑑みなされたものであって、
従来からこの種の送材装置において駆動源として用いら
れている回転型のモータを廃し、これに代えてリニアモ
ータを通用することでより安全且つ安定した走行ができ
るようにした新規な送材装置の開発を試みたものである
．《発明の構或｝
《目的達威の手段〉
本出願の第一の発明たる送材装置は、原材を保持した状
態で鋸盤の近傍を走行し、原材の挽き割りを行わせる装
置において、前記装置の走行をリニアモータを駆動源と
して行うようにしたことを特徴として威るものである．
（２） また本出願の第二の発明たる送材装置は前記
要件に加え、前記装置における走行架台の支持方式とし
て車輪を用い、この車輪により走行架台を浮上させ、リ
ニアモータによる走行を行わせるようにしたことを特徴
として威るものである．
これら発明により前記目的を達戒しようとするものであ
る．
《発明の作用〉
本出願の第一の発明たる送材装置は駆動源としてリニア
モータを用いているから、回転式のモータを用いた場合
に必要となっていたギヤ、ベルト、チェーンあるいはワ
イヤ等の中間伝達部材は一切不用となり、リニアモータ
の一次コイルに電圧を加えるだけで直接架台は水平方向
に移動する．
また本山廟の第二の発明たる送材装置は前記作用に加え
、架台の支持方式として車輪を用いているから、この車
輪によりリニアモータにおける一次コイルと二次導体と
は常に一定の間隔をおいて保持されるため、両者の間に
は一定の吸引力が保たれる．
く実施例〉
以下本発明を図示の実施例に基づいて具体的に説明する
．ＦＩ！Ｊ中、符号ｌに示すものが本出願に係る送材装
置であって、一例として第１〜４図ではいわゆるシング
ルソータイプの鋸盤に通用するものを示し、また第５図
ではいわゆるツインソータイプもしくはそれ以上の多重
挽きの鋸盤に適用するものを示す．そしてこのような送
材装置ｌの走行経路途中近傍には、第１、２図に示すよ
うに鋸盤２が隣接して設けられる．この鋸Ｉ１２と相ま
って原材Ａの挽き割りを行うのである．また鋸盤２はピ
ント状に掘削されている基［１３によりその下端付近が
保持されており、この基礎３は更に送材装置ｌ側におい
ても送材装置ｌの走行経路を実質的に形戒する走行レー
ル４の支持部材であるレール機枠５を保持している．尚
、第１、２図はシングルソータイプの鋸１ｉ２に通用す
る送材装置１について図示してあるが、第５図に示す多
重挽タイプの鋸盤２に通用する送材装置１であっても基
本的には同様の配設態様をとる．そしてこのように配設
される送材装置１の構戒は以下のように戒る．まず第１
〜４図に示す送材装置ｌについて説明する．この送材装
置１は走行ユニット７とカスガイユニッＨ５とに大別さ
れ、このうち走行ユニット７はチャンネル材等を適宜矩
形状に組み合わせ、これを骨格部材として威る走行架台
８と、この走行架台８の側方下面から下方に向けてそれ
ぞれ左右対称となるように設けられる軸受部９と、対向
する軸受部９間を貫通し、回転自在に支持される車軸１
０と、この車軸１ｏの両端付近にそれぞれ設けられる車
輪１）とを基本的に具えて威り、更に本出願の特徴的構
或であるリニアモータＬ−Ｍの二次導体２２を保持する
保持部１２を走行架台８の下面の適宜の位置（本実施例
では一例として中央〉に設けて戒る．尚、走行ユニット
７は車輪１）が前記走行レール４上を転勤することによ
り、走行レール４を摺動する．またカスガイユニット１
５は走行ユニット７における走行架台８上に適宜の数設
けられるものであり、走行架台８に固定されるベッドｌ
６を下方に据え、このベッドｌ６の上面に走行ユニット
７の走行方向と直交する向きに二本の歩出レーノレ１７
を敷設し、この歩出レールｌ７上に歩出装置１８を摺動
自在に設け、更に歩出装置１８の鋸盤２側の端部にカス
ガイ１９を設けることに、より戒っている．そして本出
願の特徴的構威として、このようにして威る走行ユニッ
ト７はリニアモータＬ−Ｍにより駆動される．リニアモ
ータＬ−Ｍは周知のとおりコイルに電流を流して磁界を
発生する回転型モータで言うステータに相当する部材を
あたかも切り開いて平板状に引き延ばしたような構威と
するとともに、ロータを鋼板に置き換え、両者を向かい
合わせたものである．即ち回転型モータにおけるステー
タとロータが相対的に回転運動する代わりに水平方向に
直線的に運動するようにしたものである．また本出願に
係る送材装置１においては回転型モータにおけるス′テ
ータに相当する一次コイル２１を固定し、回転型モータ
におけるロータに相当する二次導体２２を可動させると
いう構戒をとっているが、勿論、両者の関係を逆にする
こともできる．そしてこのうち一次コイル２ｌは並設さ
れている二本の走行レール４の中間付近に位置するよう
に基礎３に設けられている支持台２３により下方から支
持されている．一方、二次導体２２は走行ユニット７に
おける走行架台８の下面に設けられている保持部１２に
より保持されている．また両者の間隔を一定に保つ方式
としては車輪浮上方式が採用されており、車輪１ｌの直
径寸法または一次コイル２ｌ、二次導体２２の取付位置
を変えることで吸引力の調整が図られる．次に第５図に
示す送材装置１について説明する．この送材装置ｌも前
述した第ｌ〜４図に示す送材装置ｌと同様に走行ユニソ
トとカスガイユニット１５とに大別される。走行ユニッ
ト７については車輪１ｌの数、走行架台８の形状等一部
の構威の違いを除き、基本的には前述した第１〜４図に
示す送材装置１と構成を同しくするので詳細は省略する
．一方、カスガイユニットｌ５については前述した第１
〜４図に示す送材装置１とは全く構或を異にし、第１〜
４図に示す送材装置１が原材Ａの胴部を何点かで挟むこ
とにより原材Ａを保持したのに対し第５図に示す送材装
置ｌにおいては原材Ａの前後の木口面にそれぞれカスガ
イ１９が作用し、保持するという構戒をとっている．尚
、リニアモータＬ−Ｍの設置個所、位置関係については
前述した第１〜４図に示す送材装置１と同様の構戒をと
る．
次にこのような構威より成る本出願に係る送材装置１に
よる原材Ａの挽割加工の工程を第１〜４図に示す送材装
置１を例にとって説明する．まずあらかじめ適宜の場所
に貯留されている原材Ａは送材装置ｌに順次供給され、
カスガイｌ９により上下から挟まれ保持される．しかる
後、所定の挽割位置に至るように歩出装置１８が歩出レ
ールｌ７に従って鋸盤２側に迫り出し、所定の挽割位置
に至ったところで停止する．そしてこのような状態で鋸
盤２及び走行ユニット７を起動させる．即ち鋸盤２は所
定の回転数で回転し始め、走行ユニット７は支持台２３
に固定されている一次コイル２ｌに電流が流れ、これに
より発生した磁界により、二次導体２２と共に鋸盤２に
向かって走行し始める．そして鋸盤２における鋸刃の回
転数との関係で設定される速度に達し、この速度で原材
Ａは鋸刃に当接し、挽割加工が行われる．そして挽割加
工が終了した後は、挽き割られた被加工材の一方は保持
がされなくなり次工程に送られ、カスガイｌ９によって
扶持されている他方の被加工材は扶持されたまま送材装
置ｌと共に原点位置に戻される．そして更にこの被加工
材を加工する場合には歩出装置ｌ８は鋸盤２側に迫り出
し、前述したのと同様の順序で挽割加工が行われる．ま
た再度の加工が必要でない場合にはカスガイ１９は解除
され、この被加工材は次工程に送られ一連の挽割加工の
工程が終了する。[Detailed description of the invention] <<Object of the invention>> (Industrial application field) The present invention forms one or more grinding lines on a raw material,
This relates to a material feeding device that is compatible with sawing machines such as band saws and circular saws that are used to saw and split raw materials. BACKGROUND OF THE INVENTION Lumber sawing equipment that saws and splits raw material using band saws, circular saws, etc. includes a saw machine that directly performs the sawing process, as well as a feeder that holds the raw material and supplies the raw material to the saw machine. There is a material device. As a material feeding device, there is a material feeding device fifl' applied to a so-called single saw type saw machine as shown in Fig.
There is a material feeding device 1' that is applied to a so-called twin saw type saw machine as shown in J, or a saw machine that performs more than one saw. A rotary motor M is used as a drive source for each of these material feeding devices 1', and the rotational motion of the rotary motor M is converted into linear motion via an intermediate transmission member such as a gear, chain, belt, or wire W. The material feeding device 1' is then driven to travel. However, when such a method is used, for example, in the material feeding device 1' shown in FIGS. 6 and 7,
A wire W is fixed to the front and back of the frame, or to either end, and this wire W is connected to the wire drum DT! Since the pedestal 8' is moved by cutting it off, there is no chance of wire breakage or
Or the frame 8 due to chain breakage or belt breakage in the drive section.
There have been problems such as running out of control, instability of running due to loosening of the wire W, and time loss associated with replacing the wire W when such a situation occurs. <Technical problem to be solved> The present invention was made in view of this background,
A new material feeding device that eliminates the rotary motor that has traditionally been used as a drive source in this type of material feeding device and uses a linear motor instead, allowing safer and more stable running. This is an attempt to develop the following. <<Structure of the Invention>><<Means for Achieving the Purpose>> The material feeding device, which is the first invention of the present application, is a device that runs near a sawing machine while holding a raw material to saw and split the raw material. The device is characterized by being driven by a linear motor as the drive source. (2) In addition to the above-mentioned requirements, the material feeding device, which is the second invention of the present application, uses wheels as a support method for the traveling platform in the device, and the traveling platform is levitated by the wheels and is driven by a linear motor. It is an impressive feature that it does this. These inventions attempt to achieve the above objectives. <<Operation of the invention>> Since the material feeding device, which is the first invention of the present application, uses a linear motor as a drive source, gears, belts, chains, wires, etc. that are required when using a rotary motor are not required. There is no need for any intermediate transmission members, and the pedestal moves directly in the horizontal direction simply by applying voltage to the primary coil of the linear motor. In addition to the above-mentioned functions, Motoyamabyo's second invention, the material feeding device, uses wheels to support the pedestal, so the wheels ensure that the primary coil and secondary conductor of the linear motor are always kept at a constant distance. Since the two are held together, a constant attractive force is maintained between the two. Embodiments> The present invention will be specifically explained below based on illustrated embodiments. FI! In J, the material feeding device indicated by the symbol l is the material feeding device according to the present application, and as an example, Figs. 1 to 4 show a device that can be used in a so-called single saw type saw machine, and Fig. 5 shows a so-called twin saw type saw machine. Shows what is applicable to saws of this type or higher. As shown in FIGS. 1 and 2, a sawing machine 2 is provided adjacent to the middle of the traveling path of such a material feeding device 1. Together with this saw I12, raw material A is sawed and split. In addition, the saw 2 is held near its lower end by a pin-shaped base [13], and this base 3 also substantially controls the running route of the material feeding device 1 on the material feeding device 1 side. It holds a rail machine frame 5, which is a support member for the running rail 4. Although FIGS. 1 and 2 illustrate the material feeding device 1 that is compatible with a single-saw type saw 1i2, the material feeding device 1 that is compatible with a multi-saw type saw 2 shown in FIG. Basically, the layout is the same. The structure of the material feeding device 1 arranged in this manner is as follows. First of all
The material feeding device l shown in Fig. 4 will be explained. This material feeding device 1 is roughly divided into a traveling unit 7 and a cassette unit H5. Of these, the traveling unit 7 combines channel materials etc. into a rectangular shape as appropriate, and includes a traveling pedestal 8 which serves as a frame member, and this traveling pedestal. 8, and an axle 1 that is rotatably supported, passing between the bearing portions 9 that are symmetrically provided downward from the side lower surface of the wheel 8, and the opposing bearing portions 9.
0 and wheels 1) provided near both ends of this axle 1o, and furthermore, a holder for holding the secondary conductor 22 of the linear motor LM, which is a characteristic structure of the present application. The section 12 is provided at an appropriate position (in this embodiment, the center is an example) on the lower surface of the traveling frame 8.The traveling unit 7 has wheels 1) that move on the traveling rail 4, so that the traveling rail Slide 4. Also Kasugai unit 1
A suitable number of beds 5 are provided on the traveling frame 8 in the traveling unit 7, and a bed l fixed to the traveling frame 8 is provided.
6 is placed downward, and two walking rails 17 are placed on the upper surface of the bed l6 in a direction perpendicular to the traveling direction of the traveling unit 7.
, the walking device 18 is slidably provided on the walking rail l7, and a cutter 19 is provided at the end of the stepping device 18 on the side of the saw machine 2. As a characteristic feature of the present application, the traveling unit 7 that operates in this manner is driven by a linear motor LM. As is well known, the linear motor LM has a structure that looks like the stator of a rotary motor, which generates a magnetic field by passing current through a coil, is cut open and stretched out into a flat plate, and the rotor is made of a steel plate. This is a replacement, and the two face each other. In other words, the stator and rotor of a rotary motor move linearly in the horizontal direction instead of rotating relative to each other. Furthermore, the material feeding device 1 according to the present application has a structure in which the primary coil 21, which corresponds to the stator in a rotary motor, is fixed, and the secondary conductor 22, which corresponds to the rotor in the rotary motor, is movable. However, of course, the relationship between the two can be reversed. Of these, the primary coil 2l is supported from below by a support stand 23 provided on the foundation 3 so as to be located near the middle of the two parallel running rails 4. On the other hand, the secondary conductor 22 is held by a holding portion 12 provided on the lower surface of the traveling frame 8 in the traveling unit 7. A wheel floating system is used to maintain a constant distance between the two, and the suction force can be adjusted by changing the diameter of the wheel 1l or the mounting positions of the primary coil 2l and secondary conductor 22. Next, the material feeding device 1 shown in FIG. 5 will be explained. Like the material feeding device 1 shown in FIGS. 1 to 4 described above, this material feeding device 1 is also roughly divided into a traveling unit and a scraper unit 15. The traveling unit 7 is basically the same in configuration as the material feeding device 1 shown in FIGS. 1 to 4 described above, except for some differences in structure such as the number of wheels 1l and the shape of the traveling frame 8. Details are omitted. On the other hand, regarding the Kasugai unit l5, the first
The structure is completely different from the material feeding device 1 shown in Figures 1 to 4.
The material feeding device 1 shown in Fig. 4 holds the material A by sandwiching the trunk of the material A at several points, whereas the material feeding device 1 shown in Fig. Kasugai 19 acts on each surface to hold it in place. The installation locations and positional relationships of the linear motors LM are similar to those of the material feeding device 1 shown in FIGS. 1 to 4 described above. Next, the process of sawing and splitting the raw material A by the material feeding device 1 according to the present application having such a structure will be explained by taking the material feeding device 1 shown in FIGS. 1 to 4 as an example. First, the raw material A, which has been stored in an appropriate place in advance, is sequentially supplied to the material feeding device l.
It is held by being sandwiched from above and below by the kasugai l9. Thereafter, the walking device 18 moves toward the sawing machine 2 along the walking rail 17 so as to reach a predetermined sawing position, and stops when it reaches the predetermined sawing position. Then, in this state, the saw machine 2 and the traveling unit 7 are started. That is, the sawing machine 2 starts rotating at a predetermined number of rotations, and the traveling unit 7 moves to the support base 23.
A current flows through the primary coil 2l fixed to the saw blade 2, and the magnetic field generated by this causes the secondary conductor 22 to start traveling toward the sawing board 2. Then, it reaches a speed set in relation to the rotational speed of the saw blade in the saw machine 2, and at this speed the raw material A comes into contact with the saw blade, and the sawing process is performed. After the sawing process is completed, one of the sawn workpieces is no longer held and is sent to the next process, while the other workpiece, which is supported by the cutter l9, remains supported by the material feeding device. It is returned to the origin position along with l. When further processing this workpiece, the walking device 18 moves toward the sawing machine 2, and sawing and splitting is performed in the same order as described above. Further, if re-machining is not required, the shavings 19 are released, the workpiece is sent to the next process, and the series of sawing and splitting processes is completed.
本出願に係る送材装置−１はこのようにして或るもので
あるが、例えばりニアモータＬ−Ｍにおける一次コイル
２１と二次導体２２との隙間に挽割時の切屑や、その他
の異物が入り込まないように適宜カバー等を設けること
も可能である．また本出願に係る送材装置１においては
、車輪浮上方式を採用し、車輪１）により送材装置１の
荷重を支えているが、これに代えて磁気浮上方式あるい
は空気浮上方式等の支持方式を採用することも可能であ
る．ただしこの場合には二次導体２２を鉄等の磁性体の
みで構威した場合には吸引力が強大過ぎ、二次導体２２
が水平方向に移動し難くなる場合も予想されるため、二
次導体２２をアルミまたは銅等の非磁性導体板と鉄等の
磁性導体板との貼り合わせ構造とすることもできる．こ
の場合、非磁性導体板は当然一次コイル２１側に配置さ
れる．
《発明の効果｝
本出願に係る送材装Ｉｆは以上のような構或より戒るも
のであり、以下のような効果を発揮する．即ち本出願に
係る送材装置１にあっては駆動機構としてリニアモータ
Ｌ−Ｍを・採用しているから、従来の回転型モータを採
用した場合に問題となっていたワイヤ切れ、駆動部のチ
ェーンやベルトの切れによる走行架台８の暴走、ワイヤ
の弛みによる走行の不安定状態、あるいはこのような事
態が起きた場合のワイヤの取り替えに伴う時間のロス等
を回避できる．更にはこのような中間伝達部材が不用と
なるため、駆動機構の簡素化が図れるほか、伝達効率の
向上、自動制御化にも寄与できる．また車輪浮上方式を
採用したことにより、他の磁気浮上方式、空気浮上方式
を採用した場合に比べ極めて安価であり、他に複雑な機
構をとり入れる必要もない．また車輪浮上式の場合に問
題となる発塵や騒音もこの種の製材装置ではさほど問題
とならないから、製材装置に用いられる送材装置１にあ
っては最良の方式と言える．Although the material feeding device-1 according to the present application is thus constructed, for example, chips from sawing and other foreign matter may be present in the gap between the primary coil 21 and the secondary conductor 22 in the near motor LM. It is also possible to provide a cover, etc., as appropriate to prevent water from entering. Furthermore, in the material feeding device 1 according to the present application, a wheel levitation method is adopted, and the load of the material feeding device 1 is supported by the wheels 1), but instead of this, a supporting method such as a magnetic levitation method or an air levitation method may be used. It is also possible to adopt However, in this case, if the secondary conductor 22 is made of only a magnetic material such as iron, the attractive force will be too strong, and the secondary conductor 22 will
Since it is expected that the secondary conductor 22 may be difficult to move in the horizontal direction, the secondary conductor 22 may have a structure in which a non-magnetic conductor plate such as aluminum or copper is laminated with a magnetic conductor plate such as iron. In this case, the nonmagnetic conductor plate is naturally placed on the primary coil 21 side. <<Effects of the Invention>> The material feeding device If according to the present application has the above-described structure and exhibits the following effects. In other words, since the material feeding device 1 according to the present application uses the linear motor LM as the drive mechanism, wire breakage and drive part problems that were caused when a conventional rotary motor was used are avoided. It is possible to avoid runaway movement of the traveling frame 8 due to a chain or belt breakage, unstable traveling due to loose wires, or time loss associated with replacing wires when such a situation occurs. Furthermore, since such an intermediate transmission member is not required, the drive mechanism can be simplified, and it can also contribute to improved transmission efficiency and automatic control. In addition, by adopting the wheel levitation method, it is much cheaper than other magnetic levitation or air levitation methods, and there is no need to incorporate any other complicated mechanisms. In addition, dust generation and noise, which are problems with the wheel floating type, are not so much of a problem with this type of sawmill, so it can be said that this is the best system for the material feeding device 1 used in the sawmill.
【図面の簡単な説明】[Brief explanation of drawings]
第１図は本発明の送材装置をシングルソータイプの鋸盤
に適用した実施例を示す一部拡大斜視図、第２図は同上
基礎部分を破断して示す正面図、第３図は送材装置の平
面図、第４図は同上側面図、第５図は本発明の送材装置
の他の実施例を示す側面図並びに正面図、第６図は従来
の送材装置を示す骨格的側面図並びにその駆動機構を示
す骨格的説明図、第７図は他の従来の送材装置を示す骨
格的側面図である．
ｌ；送材装置
２；鋸盤
３；基礎
４；走行レール
５；レール機枠
７：走行ユニット
８；走行架台
９；軸受部
ｌＯ：車軸
１）；車輪
１２；保持部
ｌ５；カスガイユニソ
ｌ６；ベソド
１７；歩出レール
ト
ｌ８：歩出装置
ｌ９；カスガイ
２１；一次コイル
２２；二次導体
２３；支持台
Ａ；原材
Ｌ−Ｍｉ
リニアモータFIG. 1 is a partially enlarged perspective view showing an embodiment in which the material feeding device of the present invention is applied to a single saw type saw machine, FIG. FIG. 4 is a side view of the material feeding device, FIG. 5 is a side view and front view showing another embodiment of the material feeding device of the present invention, and FIG. 6 is a skeletal view of the conventional material feeding device. A side view and a skeletal explanatory diagram showing the drive mechanism thereof. FIG. 7 is a skeletal side view showing another conventional material feeding device. l; material feeding device 2; sawing machine 3; foundation 4; running rail 5; rail machine frame 7: running unit 8; running frame 9; bearing part lO: axle 1); wheel 12; holding part l5; 17; Walking rail rail l8: Walking device l9; Cascade 21; Primary coil 22; Secondary conductor 23; Support stand A; Raw material L-Mi linear motor