JP4387752B2 - Raw wood cutting method and apparatus - Google Patents

Raw wood cutting method and apparatus Download PDF

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JP4387752B2
JP4387752B2 JP2003350461A JP2003350461A JP4387752B2 JP 4387752 B2 JP4387752 B2 JP 4387752B2 JP 2003350461 A JP2003350461 A JP 2003350461A JP 2003350461 A JP2003350461 A JP 2003350461A JP 4387752 B2 JP4387752 B2 JP 4387752B2
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log
cutting
raw wood
rotating body
support
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JP2005111868A (en
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律男 西村
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Meinan Machinery Works Inc
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Meinan Machinery Works Inc
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Description

本発明は、刃物を備えた鉋台と、鉋台と一体に設けたプレッシャーバー台に原木と接近又は離隔する方向で往復動自在に設けられ、該刃物の刃先とほぼ平行な軸中心線を有し、該刃物の刃先より原木回転方向上手側で少なくとも原木に当接する回転駆動させられる回転体とを備えたベニヤレースにより、原木を切削する場合の切削方法及び装置に関するものである。
尚、これらベニヤレースでは、原木を切削するために必要な動力の大部分は該回転体から供給するように構成され、原木を回転自在に支持するされている。
The present invention is provided with a table with a cutting tool, and a pressure bar table provided integrally with the tool board so as to reciprocate in a direction approaching or separating from the log, and has an axial center line substantially parallel to the cutting edge of the tool. The present invention relates to a cutting method and apparatus for cutting a log with a veneer lace provided with a rotating body that is driven to rotate at least on the log rotation direction on the upper side of the cutting edge of the cutting tool.
In these veneer races, most of the power necessary for cutting the log is supplied from the rotating body, and the log is supported rotatably.

従来例えば特許文献1に記載されているようなベニヤレースは、概略図である図10に示すように、鉋台(図示せず)に刃先3aを有する刃物3、プレッシャーバー台(図示せず)に刃先3aより原木1の回転方向上手側でホルダー13に回転自在に保持されモータ(図示せず)により常時回転駆動させられる丸棒状のローラーバー7等を備えている。
このローラーバー7は、原木1の切削における先割れを少なくすること及び原木1への動力を確実に伝達することのために、次のような位置に備えられている。
即ち図10で、原木1が回転して切削された場合に刃物3の刃先3aが通過すると近似的に想定される刃先3aから垂直に引いた一点鎖線で示す仮想線Y−Yと、ローラーバー7の刃物側外周面との間隔が、切削して得られる単板の厚さの90%程度になるように配置している。
特開平11−99507号公報
Conventionally, for example, a veneer lace as described in Patent Document 1 is shown in FIG. 10, which is a schematic diagram, in a blade 3 (not shown) having a cutting edge 3a and a pressure bar table (not shown). A round bar-shaped roller bar 7 and the like that are rotatably held by a holder 13 on the upper side in the rotation direction of the log 1 from the cutting edge 3a and are always driven to rotate by a motor (not shown) are provided.
The roller bar 7 is provided at the following position in order to reduce the cracks in the cutting of the raw wood 1 and to reliably transmit power to the raw wood 1.
That is, in FIG. 10, when the log 1 is rotated and cut, an imaginary line YY indicated by a one-dot chain line perpendicularly drawn from the cutting edge 3a that is approximately assumed to pass the cutting edge 3a of the blade 3 and the roller bar It arrange | positions so that the space | interval with 7 cutter side outer peripheral surfaces may become about 90% of the thickness of the single plate obtained by cutting.
JP-A-11-99507

上記装置において、刃物3及びローラーバー7が一体となってスピンドル(図示せず)により支持され且つ回転させられる原木1に向かって移動し始めると、図10において原木1の外周1aの位置が相対的に左側より順次右側へと移動し、該外周1aが該仮想線Y−Yの位置を越えると刃物3により切削が開始されることになる。
しかるに図10に示すように、原木1の外周1aが該仮想線Y−Yの位置を越えて切削が開始されてから原木が1回転するまでは、原木1の外周1aはローラーバー7と当接されず、そのためローラーバー7から原木1に力は伝達されず、スピンドルのみから原木1に力が伝達されている。
スピンドルから供給される動力は前述のように構成されているので、回転している原木及びスピンドル等の運動エネルギーが切削により消費されてしまうと、原木1は回転を停止し切削ができなくなってしまうことがある。
このような現象は、特にほぼ円柱状に加工形成されている原木(以下、円柱原木という)で起き易い。何故なら円柱原木の場合、該原木の軸中心線方向の全幅で刃物3により一斉に切削されるため、スピンドルにかかる切削抵抗が大となって切削ができなくなり易いからである。
In the above apparatus, when the blade 3 and the roller bar 7 integrally move toward the log 1 that is supported and rotated by a spindle (not shown), the position of the outer periphery 1a of the log 1 in FIG. When the outer periphery 1a moves to the right side sequentially from the left side and exceeds the position of the imaginary line Y-Y, cutting is started by the cutter 3.
However, as shown in FIG. 10, the outer periphery 1a of the log 1 is in contact with the roller bar 7 until the log rotates once after the outer periphery 1a of the log 1 exceeds the position of the virtual line Y-Y and the cutting is started. Therefore, no force is transmitted from the roller bar 7 to the log 1, and the force is transmitted only from the spindle to the log 1.
Since the power supplied from the spindle is configured as described above, if the kinetic energy of the rotating log and spindle is consumed by cutting, the log 1 stops rotating and cannot be cut. Sometimes.
Such a phenomenon is likely to occur particularly in a log (hereinafter referred to as a cylinder log) that is processed and formed into a substantially cylindrical shape. This is because in the case of a cylindrical raw wood, cutting is performed simultaneously by the blade 3 with the full width in the axial center line direction of the raw wood, so that the cutting resistance applied to the spindle becomes large and cutting becomes difficult.

本発明では、刃物の刃先より原木の回転方向上手側に備えられ回転駆動される回転体により、原木の切削開始時から原木に動力を供給するものである。 In the present invention, power is supplied to the raw wood from the start of cutting of the raw wood by a rotating body that is provided on the upper side in the rotational direction of the raw wood from the cutting edge of the cutter and is driven to rotate.

切削開始時から原木に十分な動力が供給され、円柱原木又はこれに類似した原木であっても良好に切削できる。   Sufficient power is supplied to the log from the start of cutting, and even a cylindrical log or a similar log can be cut well.

次に本発明の実施の形態を、実施例により説明する。
図1は装置の側面説明図、図2は図1の一点鎖線X−Xより矢印方向を見た部分断面図、図3は図1の破線で示す円Aの箇所の拡大図である。
原木1を支持し矢印方向に回転駆動する一対のスピンドル41を、原木1の軸心方向へ進退自在に備え、また原木1の左右両側には各々以下のように設ける。
即ち原木1の右側には、回転する原木1を切削するための刃物3等を有し、摺動面を有する支持台(図示せず)上で図1の左右方向へ摺動自在のプレッシャーバー台4と鉋台5を一体に配置する。
プレッシャーバー台4は、公知のベニヤレースと同様に、刃物3により原木を切削することで得られた単板が通過できる空間を設けるべく、鉋台5の上方で、原木1の軸心方向の両端側において互いに連結一体化されている。
該プレッシャーバー台4で前記軸心方向の両端側の上面は、図1で若干左下がりに傾斜した面に形成されており、該面に図2では一方側だけを示すが、各々スライド部材17を、リニア軸受18を介して設けることで、プレッシャーバー台4に対し、スライド部材17が図1の矢印で示す傾斜した左右方向に往復移動自在に設けられている。
Next, embodiments of the present invention will be described by way of examples.
FIG. 1 is an explanatory side view of the apparatus, FIG. 2 is a partial cross-sectional view as viewed in the direction of the arrow from the one-dot chain line XX in FIG. 1, and FIG.
A pair of spindles 41 that support the log 1 and rotate and drive in the direction of the arrow are provided so as to be able to advance and retreat in the axial direction of the log 1 and are provided on the left and right sides of the log 1 as follows.
That is, on the right side of the log 1, there is a blade 3 for cutting the rotating log 1, etc., and a pressure bar that can slide in the left-right direction in FIG. 1 on a support base (not shown) having a sliding surface. The base 4 and the base 5 are arranged integrally.
Like the known veneer lace, the pressure bar table 4 has both ends in the axial direction of the log 1 above the table 5 so as to provide a space through which a single plate obtained by cutting the log with the cutter 3 can pass. They are connected and integrated with each other on the side.
The upper surfaces of the pressure bar base 4 on both end sides in the axial direction are formed to be slightly inclined to the left in FIG. 1, and only one side is shown in FIG. Is provided via the linear bearing 18 so that the slide member 17 is reciprocally moved in the inclined left and right directions indicated by the arrows in FIG. 1 with respect to the pressure bar base 4.

スライド部材17の図1で左側先端には、両スライド部材17を連結一体化するための、同じく前記軸心方向へ連続し、且つ後述するようにプレッシャーバー台4に対しスライド部材17と一体に前記左右方向に往復移動してもプレッシャーバー台4に当たらぬ大きさの取付台15が、固定されている。
該取付台15には、側面形状が図1に示すようにL字形であり、原木1の軸心方向の幅が比較的狭い(例えば40ミリメートル)ホルダー13を、図2に示すように同軸心方向に多数並んだ状態で固定する。
各ホルダー13には、スピンドル41側での下部であって刃物3の刃先上方となる位置に円弧状の凹部13aが形成されており、各凹部13aには、1個の棒状の部材で構成され直径が凹部13aの円弧の直径とほぼ等しいローラーバー7を挿入し、回転自在に保持する。
ローラーバー7には、図1で反時計回りに常時同じ周速(例えば1分間当り88m)で回転駆動させるべく、モータ11を設けてある。
該モータ11とローラーバー7との間には、ワンウェイクラッチ(図示せず)を設け、ローラーバー7が前記周速以上の速さで回転方向に力を受けると追従して回転可能とする。
またモータ11には出力トルクの量を検出するためのトルクメータ12を設け、該トルクメータ12が検出したトルクの量の信号は制御器14に送られる。
The slide member 17 is connected to and integrated with the slide member 17 at the left end in FIG. 1 and is continuously continuous in the axial direction, and is integrated with the slide member 17 with respect to the pressure bar base 4 as will be described later. A mounting base 15 having a size that does not contact the pressure bar base 4 even when reciprocating in the left-right direction is fixed.
As shown in FIG. 2, a holder 13 having a side surface in an L shape as shown in FIG. 1 and a relatively narrow width (for example, 40 millimeters) in the axial direction of the log 1 is coaxially arranged as shown in FIG. Fix in a state where many are aligned in the direction.
Each holder 13 is formed with an arcuate recess 13a at a position on the lower side of the spindle 41 and above the cutting edge of the blade 3, and each recess 13a is composed of a single bar-shaped member. A roller bar 7 having a diameter substantially equal to the diameter of the arc of the recess 13a is inserted and held rotatably.
The roller bar 7 is provided with a motor 11 so as to always rotate counterclockwise in FIG. 1 at the same peripheral speed (for example, 88 m per minute).
A one-way clutch (not shown) is provided between the motor 11 and the roller bar 7 so that the roller bar 7 can be rotated when it receives a force in the rotational direction at a speed equal to or higher than the peripheral speed.
The motor 11 is provided with a torque meter 12 for detecting the amount of output torque, and a torque amount signal detected by the torque meter 12 is sent to the controller 14.

一方スライド部材17には、図2に示すように、該傾斜した方向と平行に連続する雌ねじ16が設けられており、該雌ねじ16に係合した状態で雄ねじ19が挿通されている。
雄ねじ19は第1移動装置の一例である可変速駆動源21に連結されており、該可変速駆動源21により正・逆転させられることで、図1の矢印で示すようにスライド部材17が往復動自在と即ち各ホルダー13に保持されたローラーバー7がプレッシャーバー台4に対し往復動自在となっている。
また雄ねじ19には、雄ねじ19の回転数を計測することで、プレッシャーバー台4と一体である鉋台5に備えた刃物3に対する、該傾斜した方向でのローラーバー7の原木側外周面の位置を検出し且つ該検出信号を後述する制御器14に送るためのアブソリュート形ロータリエンコーダ等から成る検出器20を備えてある。
尚、可変速駆動源21の正・逆転及び停止は、制御器14からの作動信号により後述するように制御される。
On the other hand, as shown in FIG. 2, the slide member 17 is provided with a female screw 16 that is continuous in parallel with the inclined direction, and a male screw 19 is inserted in a state of being engaged with the female screw 16.
The male screw 19 is connected to a variable speed drive source 21 which is an example of a first moving device, and the slide member 17 reciprocates as indicated by an arrow in FIG. The roller bar 7 held by each holder 13 can move back and forth with respect to the pressure bar base 4.
The male screw 19 measures the rotational speed of the male screw 19 so that the position of the outer peripheral surface of the log bar side of the roller bar 7 in the inclined direction with respect to the cutter 3 provided on the base 5 integrated with the pressure bar base 4. And a detector 20 comprising an absolute rotary encoder or the like for sending the detection signal to a controller 14 described later.
The forward / reverse rotation and stop of the variable speed drive source 21 are controlled by an operation signal from the controller 14 as described later.

また図1に示すように、一体に構成されたプレッシャーバー台4及び鉋台5には公知のベニヤレースと同様に、水平方向に雌ねじ(図示せず)が設けられており、該雌ねじには係合した状態で雄ねじ31が挿通されている。
雄ねじ31は第2移動装置の一例であるサーボモータ等から成る可変速駆動源34に連結されており、雄ねじ31が該駆動源34に正・逆転させることせられることにより、プレッシャーバー台4と鉋台5が一体でスピンドル41に対し往復動自在となっている。
また雄ねじ31には、雄ねじ31の回転数を計測することでスピンドル41の回転中心と刃物3の刃先の位置との間の距離を検出し該検出信号を後述する制御器14に送るためのアブソリュート形ロータリエンコーダ等から成る検出器33を設けてある。
尚、可変速駆動源34の正・逆転及びその回転数は、後述するように制御器14からの作動信号により制御される。
また、前記スピンドル41には、時間当りの回転数を適宜変更可能な可変速駆動源42を設けるが、可変速駆動源42からスピンドル41に供給される動力は、スピンドル41単独では刃物3により原木1を切削するためには不十分な大きさに設定されている。
尚、スピンドル41の回転角度の値と、単位時間当りの回転数を検出し、これら検出信号を後述する制御器14に送るための検出器40を設けてある。
Further, as shown in FIG. 1, the pressure bar base 4 and the saddle base 5 which are integrally formed are provided with a female screw (not shown) in the horizontal direction in the same manner as a known veneer race. The male screw 31 is inserted in the combined state.
The male screw 31 is connected to a variable speed drive source 34 composed of a servo motor or the like, which is an example of a second moving device, and the male screw 31 is rotated forward and backward by the drive source 34, thereby The rack 5 is integrated with the spindle 41 so as to be reciprocally movable.
The male screw 31 detects the distance between the rotation center of the spindle 41 and the position of the cutting edge of the blade 3 by measuring the number of rotations of the male screw 31 and sends the detection signal to the controller 14 described later. A detector 33 comprising a rotary encoder or the like is provided.
The forward / reverse rotation and the rotational speed of the variable speed drive source 34 are controlled by an operation signal from the controller 14 as will be described later.
The spindle 41 is provided with a variable speed drive source 42 capable of appropriately changing the number of revolutions per hour. The power supplied from the variable speed drive source 42 to the spindle 41 is the raw wood by the cutter 3 in the spindle 41 alone. The size is set to be insufficient for cutting 1.
A detector 40 is provided for detecting the value of the rotation angle of the spindle 41 and the number of rotations per unit time and sending these detection signals to the controller 14 described later.

一方原木1の反対側には、原木1の周面に当接させるべく上下に配置された2個のバックアップロール43、45を従動回転自在に保持した支持台47を、後述するように往復動自在に設ける。
即ち支持台47にはプレッシャーバー台4と同様に水平方向に雌ねじ(図示せず)を設け、該雌ねじに係合した状態で雄ねじ49が挿通されている。
雄ねじ49はサーボモータ等から成る可変速駆動源51に連結されており、雄ねじ49が該駆動源51に正・逆転させることせられることにより、支持台47がスピンドル41に対し往復動自在となっている。
また雄ねじ49には、雄ねじ49の回転数を計測することでスピンドル41の回転中心とバックアップロール43、45の原木1側外周面の位置との間の距離を検出し、該検出信号を後述する制御器14に送るためのアブソリュート形ロータリエンコーダ等から成る検出器50を設けてある。
以上設けた検出器20、検出器33、検出器40及び検出器50からの信号により、制御器14は、プレッシャーバー台4と鉋台5及び支持台47の移動を次のように制御する信号を可変速駆動源21、可変速駆動源34、可変速駆動源42及び可変速駆動源51に送る。
On the other hand, on the opposite side of the log 1, a support base 47 that holds two backup rolls 43, 45 arranged vertically so as to come into contact with the peripheral surface of the log 1 is reciprocated as will be described later. Provide freely.
That is, the support base 47 is provided with a female screw (not shown) in the horizontal direction in the same manner as the pressure bar base 4, and the male screw 49 is inserted in a state of being engaged with the female screw.
The male screw 49 is connected to a variable speed drive source 51 composed of a servo motor or the like, and the support screw 47 can reciprocate with respect to the spindle 41 by causing the male screw 49 to rotate forward and backward with respect to the drive source 51. ing.
Further, the male screw 49 detects the distance between the rotation center of the spindle 41 and the position of the outer peripheral surface of the backup rolls 43, 45 by measuring the number of rotations of the male screw 49, and the detection signal will be described later. A detector 50 comprising an absolute rotary encoder or the like for sending to the controller 14 is provided.
Based on the signals from the detector 20, the detector 33, the detector 40, and the detector 50 provided as described above, the controller 14 generates a signal for controlling the movement of the pressure bar base 4, the saddle base 5, and the support base 47 as follows. It is sent to the variable speed drive source 21, variable speed drive source 34, variable speed drive source 42, and variable speed drive source 51.

即ち可変速駆動源42により原木1が矢印方向に回転するようにスピンドル41を回転させ、可変速駆動源34によりプレッシャーバー台4と鉋台5とを原木1に向けて、また支持台47を同じく原木1に向けて移動させることで、刃物3で原木1を切削し単板を得るが、これら作動は以下のように制御される。   That is, the spindle 41 is rotated so that the log 1 is rotated in the direction of the arrow by the variable speed drive source 42, the pressure bar base 4 and the saddle stand 5 are directed toward the log 1 by the variable speed drive source 34, and the support base 47 is also the same. By moving toward the log 1, the log 1 is cut with the blade 3 to obtain a single plate, and these operations are controlled as follows.

可変速駆動源42によるスピンドル41の時間当りの回転数は、スピンドル41の回転中心と刃物3の刃先3aとの間の距離によって決定される、即ち任意位置にある刃物3の刃先3aで原木1が切削された場合、切削されている個所での原木1の周速が常に同じ速さV(例えば1分間当り90m)となるように制御される。
そのため検出器33から得られるスピンドル41の回転中心と任意位置にある刃物3の刃先3aとの間の距離(以下、第1距離という)の値をrとすると、その時のスピンドル41の回転数Nは、N=V÷2Πrとなるので、Vを一定とするためには第1距離の値rが小さくなるにつれ反比例してNを大きくする様に制御器14が制御する信号を出し、また検出器40からフィードバックされる信号で確認し、異なれば修正する信号を出す。
また刃物3で原木1を切削して得られる単板の厚さを一定とするためには、スピンドル41の1回転当りにプレッシャーバー台4と鉋台5とが原木1に向けて移動する距離を一定としなければならない。
そのために前記順次増大するスピンドル41の回転数の信号が伝えられる制御器14は、第1距離の値rが小さくなるにつれ反比例して可変速駆動源34にプレッシャーバー台4と鉋台5とが原木1に向けて移動する速さを順次増大させる信号を出し、同様に検出器33からフィードバックされる信号で確認し、異なれば修正する信号を出す。
The number of rotations per hour of the spindle 41 by the variable speed drive source 42 is determined by the distance between the rotation center of the spindle 41 and the cutting edge 3a of the cutting tool 3, that is, the log 1 at the cutting edge 3a of the cutting tool 3 at an arbitrary position. Is cut, the peripheral speed of the raw wood 1 at the cut portion is always controlled to be the same speed V (for example, 90 m per minute).
Therefore, if the distance between the rotation center of the spindle 41 obtained from the detector 33 and the cutting edge 3a of the blade 3 at an arbitrary position (hereinafter referred to as the first distance) is r, the rotation speed N of the spindle 41 at that time Since N = V ÷ 2Πr, in order to keep V constant, the controller 14 outputs a signal controlled by the controller 14 to increase N in inverse proportion as the value r of the first distance decreases. Check with the signal fed back from the device 40, and if different, give a signal to be corrected.
Further, in order to make the thickness of the single plate obtained by cutting the log 1 with the blade 3 constant, the distance that the pressure bar base 4 and the eaves base 5 move toward the log 1 per one rotation of the spindle 41 is set. Must be constant.
Therefore, the controller 14 to which the signal of the rotational speed of the spindle 41 that increases sequentially is transmitted to the variable speed drive source 34 in the inverse proportion to the value r of the first distance. A signal for sequentially increasing the speed of movement toward 1 is output, and similarly, a signal fed back from the detector 33 is checked, and if different, a signal for correction is output.

一方支持台47は、刃物3により原木1を切削するべくプレッシャーバー台4と鉋台5とが回転する原木1に向かって移動している時、運転者の手作業による作動信号を受けた制御器14は、次のように移動するように可変速駆動源51に作動信号を送る。
即ち可変速駆動源51は作動し、最初に、プレッシャーバー台4と鉋台5の移動により順次変化する任意の第1距離で、設定された厚さの単板を切削していると仮定した場合に求められる曲線(切削中の原木の外周面はほぼアルキメデスのスパイラル曲線上にある)となる仮想原木外周面に、バックアップロール43、45の周面が各々当接する位置関係となるように、支持台47をスピンドル41側へ急速移動させる。
該急速移動後は、プレッシャーバー台4と鉋台5の移動による前記第1距離に応じた前記曲線となる仮想原木外周面に、バックアップロール43、45の周面が各々当接しつづける位置関係となるように、支持台47をスピンドル41側へ移動させる。
また制御器14は、同様に検出器50からフィードバックされる信号で支持台47の位置を確認し、異なれば修正する信号を可変速駆動源51に出す。
尚、同じく可変速駆動源21は制御器14からの信号により作動を制御されるが、詳細は以下の実施例の作動説明中に示す。
On the other hand, the support base 47 is a controller that receives an operation signal by a driver's manual operation when the pressure bar base 4 and the eaves base 5 are moving toward the rotating log 1 to cut the log 1 with the cutter 3. 14 sends an actuation signal to the variable speed drive source 51 to move as follows.
That is, assuming that the variable speed drive source 51 is activated, and at first, a single plate having a set thickness is being cut at an arbitrary first distance that is sequentially changed by the movement of the pressure bar base 4 and the base 5. Is supported so that the circumferential surfaces of the backup rolls 43 and 45 are in contact with the outer circumferential surface of the virtual log, which is the curve required for the cutting (the outer circumferential surface of the raw wood being cut is substantially on the Archimedes spiral curve). The stage 47 is rapidly moved to the spindle 41 side.
After the rapid movement, the peripheral surfaces of the backup rolls 43 and 45 are kept in contact with the virtual log outer peripheral surface having the curve according to the first distance due to the movement of the pressure bar base 4 and the saddle base 5. Thus, the support base 47 is moved to the spindle 41 side.
Similarly, the controller 14 confirms the position of the support base 47 with a signal fed back from the detector 50, and outputs a signal to be corrected to the variable speed drive source 51 if it is different.
Similarly, the operation of the variable speed drive source 21 is controlled by a signal from the controller 14, and details will be described in the following description of the operation of the embodiment.

本発明の実施例は、以上のように構成するものであり、最初に上記各部材を次のように設定しておく。
図1の各部材の位置関係から、運転者の手作業による入力信号を受けた制御器14は、可変速駆動源34を作動させプレッシャーバー台4と鉋台5を右側に移動させると共に、可変速駆動源51を作動させて支持台47をプレッシャーバー台4と鉋台5とほぼ同じ量だけ左側に移動させ、また原木1をスピンドル41から除去しておく。
The embodiment of the present invention is configured as described above. First, the respective members are set as follows.
From the positional relationship of each member in FIG. 1, the controller 14 that has received an input signal manually by the driver operates the variable speed drive source 34 to move the pressure bar base 4 and the saddle base 5 to the right side, The drive source 51 is operated to move the support base 47 to the left side by substantially the same amount as the pressure bar base 4 and the saddle base 5, and the log 1 is removed from the spindle 41.

これら移動により、切削すべき原木をスピンドル41で保持すべく上方から供給するのに充分な空間が、一体であるプレッシャーバー台4と鉋台、及び支持台47との間に得られたら、同じく運転者の入力信号により適宜位置で該移動を各々停止する。
次いで予めベニヤレース(図示せず)により軸中心線を回転中心として回転させ刃物により外周部の凹凸を削り取ることで円柱状に形成された原木1を、フック(図示せず)により吊り下げて一対のスピンドル41の間に供給し、該軸中心線がスピンドル41の回転中心となるようにスピンドル41を各々原木1の両木口に向けて前進させ、保持しておく。
If sufficient space for supplying the raw wood to be cut by the spindle 41 from above is obtained between the integrated pressure bar base 4 and the gantry base and the support base 47 by these movements, the same operation is performed. Each movement is stopped at an appropriate position by an input signal from the person.
Next, the log 1 formed in a cylindrical shape by rotating around the axis center line with a veneer lace (not shown) as the center of rotation and scraping the unevenness of the outer periphery with a blade is suspended by a hook (not shown) and a pair. The spindles 41 are respectively advanced and held toward both ends of the log 1 so that the axis center line becomes the rotation center of the spindle 41.

次に可変速駆動源21を正転させてスライド部材17をプレッシャーバー台4上で原木1側に移動させ、ローラーバー7を以下のような切削開始位置で待機させる。
即ち前記スライド部材17の移動により、図1のローラーバー7の付近を点線の円Aで囲んだ部分のしかも原木1を除外した状態の拡大説明図である図3に示すように、ローラーバー7の原木側外周面が仮想線Y−Yの位置に到達したことを検出器20により検出されると、該検出信号を受けた制御器14からの信号により可変速駆動源21を停止させ、ローラーバー7を切削開始位置で待機させる。
Next, the variable speed drive source 21 is rotated forward to move the slide member 17 to the log 1 side on the pressure bar base 4, and the roller bar 7 is put on standby at the following cutting start position.
That is, as shown in FIG. 3 which is an enlarged explanatory view of a state where the vicinity of the roller bar 7 in FIG. 1 is surrounded by a dotted circle A and the log 1 is excluded by the movement of the slide member 17, as shown in FIG. When the detector 20 detects that the outer peripheral surface of the raw wood side has reached the position of the imaginary line YY, the variable speed drive source 21 is stopped by the signal from the controller 14 that has received the detection signal, and the roller The bar 7 is put on standby at the cutting start position.

以上のように各部材を設定した状態で、次に出される運転者の入力信号を受けた制御器14は、可変速駆動源42を作動させスピンドル41を回転させる。この時のスピンドル41の時間当りの回転数Nは、検出器33から得られる第1距離rの値の情報により、前記N=V÷2ΠrでVが1分間当り90mとなるような該回転数に制御されている。
次いで運転者から出される切削開始信号を受けた制御器14は、原木1から切削される単板の厚さが一定となるように、可変速駆動源34、42及び51を、スピンドル41の1回転当りにプレッシャーバー台4と鉋台5とが原木1に向けて移動する距離を予め設定された一定の値で、またこのプレッシャーバー台4と鉋台5との移動に対応して支持台47も移動させ、しかも第1距離rの値の減少に反比例してスピンドル41の時間当りの回転数Nを増大させるように各々制御する。
In the state where each member is set as described above, the controller 14 that receives the next driver input signal operates the variable speed drive source 42 to rotate the spindle 41. At this time, the number of revolutions N of the spindle 41 per hour is such that N = V ÷ 2Πr and V is 90 m per minute according to the information of the value of the first distance r obtained from the detector 33. Is controlled.
Next, the controller 14 that has received the cutting start signal issued from the driver sets the variable speed drive sources 34, 42, and 51 to 1 of the spindle 41 so that the thickness of the single plate cut from the raw wood 1 is constant. The distance by which the pressure bar base 4 and the base 5 move toward the log 1 per rotation is set to a predetermined value, and the support base 47 also corresponds to the movement of the pressure bar base 4 and the base 5. The control is performed such that the rotational speed N of the spindle 41 is increased in inverse proportion to the decrease in the value of the first distance r.

そこで図4に示すように、刃物3、ローラーバー7等が回転する原木1に向かって移動し始めると、同じく手作業による作動信号で可変速駆動源51を作動させ前記のように支持台47をスピンドル41側へ急速移動させ、次いで、プレッシャーバー台4と鉋台5の移動に対応して、制御されて移動させられる。
やがて原木1の周面が仮想線Y−Yの位置に至ると、回転するローラーバー7の原木1側周面が原木1の周面に当接される。
この時、ローラーバー7の周速は原木1の周速より小であるが、前記のようにローラーバー7とモータ11との間にワンウェイクラッチを備えてあるので、該当接によってローラーバー7は原木1から受ける摩擦力によりその周速が増大され原木1と同一となって回転させられるが、この状態ではローラーバー7は原木1に動力を伝達していない。
上記状態で図5に示すように原木1が刃物3により切削され始め設定された厚さより薄い単板Pが得られるが、前述のようにスピンドル41から供給される動力は単独では切削するためには不十分な大きさに設定されているため、刃物3による切削抵抗により原木1の周速は順次減少し、この原木1の周速に追従してローラーバー7の周速も減少する。
ローラーバー7の周速が減少し設定された1分間当り88mの周速になると、ワンウェイクラッチの作用によりローラーバー7から動力が原木1に供給され、以後主にローラーバー7からの動力により原木1が回転させられ、前記のようにスピンドル41から供給される動力だけで切削するためには不十分な大きさに設定されていても、問題なく切削が行なわれる。
Therefore, as shown in FIG. 4, when the blade 3, the roller bar 7, etc. start to move toward the rotating log 1, the variable speed drive source 51 is also activated by the manual operation signal, as described above. Is moved rapidly to the spindle 41 side, and is then moved in a controlled manner corresponding to the movement of the pressure bar base 4 and the saddle base 5.
Eventually, when the peripheral surface of the log 1 reaches the position of the imaginary line YY, the log 1 side peripheral surface of the rotating roller bar 7 comes into contact with the peripheral surface of the log 1.
At this time, although the circumferential speed of the roller bar 7 is smaller than the circumferential speed of the log 1, as described above, the one-way clutch is provided between the roller bar 7 and the motor 11. Although the peripheral speed is increased by the frictional force received from the log 1 and is rotated in the same manner as the log 1, the roller bar 7 does not transmit power to the log 1 in this state.
In the above state, as shown in FIG. 5, a single plate P thinner than the set thickness is obtained when the log 1 starts to be cut by the blade 3, but the power supplied from the spindle 41 is cut by itself as described above. Is set to an insufficient size, the circumferential speed of the log 1 is sequentially reduced by the cutting force of the blade 3, and the peripheral speed of the roller bar 7 is also reduced following the circumferential speed of the log 1.
When the peripheral speed of the roller bar 7 decreases and reaches a set peripheral speed of 88 m per minute, the power is supplied from the roller bar 7 to the log 1 by the action of the one-way clutch, and thereafter the log is mainly generated by the power from the roller bar 7. 1 is rotated and cutting is performed without any problem even if the size is set to be insufficient for cutting only with the power supplied from the spindle 41 as described above.

一方このローラーバー7からの動力により原木1が回転させられると、モータ11に設けたトルクメータ12から出力トルクが増大し始めたことの信号が、制御器14に送られる。
そこで制御器14は、検出器40から入力されるスピンドル41の回転角度の値の信号とにより、該出力トルクが増大し始めた時を基準とし、最初にスピンドル41が1回転する間に、可変速駆動源21に作動信号を出し、プレッシャーバー台4に対し各スライド部材17を次のように原木1から遠ざかる方向に移動させる。
即ち、原木1が円柱状で且つ前記スピンドル41の1回転当りにプレッシャーバー台4と鉋台5とが移動する距離が所定の値であるので、前記最初の1回転におけるスピンドル41の回転角度に応じて原木1から刃物3により切削される単板の厚さ、言い換えれば図4乃至6で仮想線Y−Yと仮想線Y−Yより右側にある原木1表面との間隔は順次増大する。また該1回転の後に、図6に示すように該間隔は一定となって所定の厚さの単板Pが得られる。
On the other hand, when the log 1 is rotated by the power from the roller bar 7, a signal indicating that the output torque starts increasing from the torque meter 12 provided in the motor 11 is sent to the controller 14.
Therefore, the controller 14 uses the signal of the value of the rotation angle of the spindle 41 input from the detector 40 as a reference when the output torque starts to increase. An operation signal is issued to the speed change drive source 21, and each slide member 17 is moved in the direction away from the log 1 with respect to the pressure bar base 4 as follows.
That is, since the log 1 is cylindrical and the distance that the pressure bar base 4 and the base 5 move per rotation of the spindle 41 is a predetermined value, it corresponds to the rotation angle of the spindle 41 in the first rotation. The thickness of the single plate cut from the log 1 by the cutter 3, in other words, the distance between the virtual line YY and the surface of the log 1 on the right side of the virtual line YY in FIGS. Further, after the one rotation, as shown in FIG. 6, the interval becomes constant and a single plate P having a predetermined thickness is obtained.

このスピンドル41の回転角度の各値に対する該間隔の各量は、これら値及び検出器33から伝えられる原木1の半径の値とにより制御器14で計算され求められる。
そこで制御器14は、仮想線Y−Yとローラーバー7の原木1側表面との間隔が常に前記求められた間隔の各量の10%程度となるように、可変速駆動源21を作動させる信号を出し、ローラーバー7をプレッシャーバー台4に対し原木1から遠ざかる方向に順次移動させる。
またスピンドル41が最初の1回転を終えたことが検出器40からの信号により確認されると、制御器14からの信号で可変速駆動源21の作動を停止しさせ、プレッシャーバー台4に対するローラーバー7の位置を固定し、以後、従来装置と同様に必要な動力の大部分はローラーバー7から供給して原木1を切削し一定の厚さの単板Pを得るのである。
以上のように実施例では、ローラーバー7は、原木1が刃物3により切削され始めるとほぼ同時に原木1へ動力を伝達し始めるため、前記従来装置における問題点が解決されるのである。
Each amount of the interval with respect to each value of the rotation angle of the spindle 41 is calculated and obtained by the controller 14 based on these values and the value of the radius of the log 1 transmitted from the detector 33.
Therefore, the controller 14 operates the variable speed drive source 21 so that the distance between the virtual line YY and the surface of the roller bar 7 on the raw wood 1 side is always about 10% of each amount of the obtained distance. A signal is output, and the roller bar 7 is sequentially moved in the direction away from the log 1 with respect to the pressure bar base 4.
When it is confirmed by the signal from the detector 40 that the spindle 41 has completed the first rotation, the operation of the variable speed drive source 21 is stopped by the signal from the controller 14, and the roller for the pressure bar base 4 is stopped. The position of the bar 7 is fixed, and thereafter, most of the necessary power is supplied from the roller bar 7 in the same manner as in the conventional apparatus to cut the log 1 to obtain a single plate P having a constant thickness.
As described above, in the embodiment, since the roller bar 7 starts to transmit power to the log 1 almost simultaneously with the cutting of the log 1 by the blade 3, the problem in the conventional apparatus is solved.

次に本発明の変更例を説明する。
1. 前記実施例ではスピンドル41が該最初の1回転する際に、バックアップロール43、45は原木1に当接されないが、原木1の切削抵抗によるベンディングを防ぐために、ローラーバー7の移動に対応して支持台47を移動させ、該最初の1回転においてもバックアップロール43、45を原木1に追従させて切削しても良い。
この場合、制御器14は、前記刃物3による切削で真円の状態から順次変化し前記曲線となる原木1の外周の状態を計算により求め、次のような作動信号を各可変速駆動源に送る。
即ち、最初に、前記実施例のようにローラーバー7の原木側外周面が仮想線Y−Yの位置に至る切削開始位置で待機させた状態で、プレッシャーバー台4と鉋台5とを前記のように移動させ、次いで可変速駆動源51に、次のように支持台47が移動するような作動信号を送る。
即ち、スピンドル41の回転中心と刃物3の刃先3aの間隔と、同じくスピンドル41の回転中心とバックアップロール43、45の原木1との各接触部との間隔が等しくなるように、支持台47をスピンドル41側へ急速移動させる。
バックアップロール43、45を前記間隔が等しくなる位置に移動させた後は、前記両間隔が等しくなる関係を保つように、プレッシャーバー台4と鉋台5の移動に対応して支持台47を移動させ続ける。
Next, a modified example of the present invention will be described.
1. In the above embodiment, the backup rolls 43 and 45 are not brought into contact with the log 1 when the spindle 41 makes the first rotation. However, in order to prevent bending due to the cutting resistance of the log 1, it corresponds to the movement of the roller bar 7. Then, the support base 47 may be moved, and the backup rolls 43 and 45 may be cut following the log 1 during the first rotation.
In this case, the controller 14 obtains the state of the outer periphery of the raw wood 1 that sequentially changes from the state of a perfect circle by cutting with the blade 3 and becomes the curve, and calculates the following operation signal to each variable speed drive source. send.
That is, first, the pressure bar base 4 and the saddle base 5 are placed in the state where the log bar outer peripheral surface of the roller bar 7 waits at the cutting start position where it reaches the position of the imaginary line Y-Y as in the above embodiment. Then, an operation signal is sent to the variable speed drive source 51 so that the support base 47 moves as follows.
That is, the support base 47 is set so that the distance between the rotation center of the spindle 41 and the cutting edge 3a of the blade 3 and the distance between the rotation center of the spindle 41 and each contact portion of the log 1 of the backup rolls 43 and 45 are equal. Rapid movement to the spindle 41 side.
After moving the backup rolls 43 and 45 to a position where the distance is equal, the support base 47 is moved corresponding to the movement of the pressure bar base 4 and the saddle base 5 so as to maintain the relation where the distances are equal. to continue.

この状態で図1に示すようにローラーバー7とバックアップロール43、45とが原木1の外周1aに当接され、前記実施例と同様に原木1の刃物3による切削が開始されると、モータ11に設けたトルクメータ12から出力トルクが増大し始めたことの信号が、制御器14に送られる。
そこで制御器14は前記実施例と同様に可変速駆動源21に作動信号を送ってローラーバー7を順次移動させると共に、切削が開始された時の原木1の半径の値と原木1の1回転当りにプレッシャーバー台4と鉋台5とが原木1に向かって移動する量とから原木1の外周1aの前記曲線を求め、バックアップロール43、45が追従するように支持台47を移動させるべく可変速駆動源51に作動信号を送る。
この場合、原木1の切削され前記曲線となった部分が原木1の回転によりバックアップロール43、45の箇所に到達するためには、当然に時間を必要とするが、この時間は前記検出器40からの信号を受けた時点でのスピンドル41の回転数の変化の状態から制御器14で求め、該求めた時間経過してから可変速駆動源51に作動信号を送り、以後、切削により順次小径となっても原木1の外周1aにバックアップロール43、45が追従し続けるように可変速駆動源51に作動信号を送り続ける。
尚、ローラーバー7は、前記実施例の場合と同様に、前記出力トルクが増大し始めた時から原木1が1回転したことが検出器40からの信号により確認されると、制御器14からの信号で可変速駆動源21の作動を停止しさせ、プレッシャーバー台4に対するローラーバー7の位置を固定する。
In this state, as shown in FIG. 1, when the roller bar 7 and the backup rolls 43 and 45 are brought into contact with the outer periphery 1a of the log 1 and the cutting by the blade 3 of the log 1 is started in the same manner as in the above embodiment, the motor A signal indicating that the output torque has started to increase is sent from the torque meter 12 provided to the controller 14 to the controller 14.
Therefore, the controller 14 sends an operation signal to the variable speed drive source 21 to move the roller bar 7 sequentially in the same manner as in the above embodiment, and at the same time, the radius value of the raw wood 1 when the cutting is started and one rotation of the raw wood 1. The curve of the outer periphery 1a of the log 1 is obtained from the amount of the pressure bar table 4 and the paddle table 5 moving toward the log 1, and the support table 47 can be moved so that the backup rolls 43 and 45 follow. An operation signal is sent to the transmission drive source 51.
In this case, time is naturally required for the portion of the log 1 that has been cut into the curve to reach the location of the backup rolls 43 and 45 due to the rotation of the log 1, but this time is not limited to the detector 40. Is obtained from the state of change in the rotation speed of the spindle 41 at the time of receiving the signal from the controller 41, and an operation signal is sent to the variable speed drive source 51 after the obtained time has elapsed. Even if it becomes, the operation signal is continuously sent to the variable speed drive source 51 so that the backup rolls 43 and 45 keep following the outer periphery 1a of the log 1.
As in the case of the above-described embodiment, the roller bar 7 starts from the controller 14 when it is confirmed by the signal from the detector 40 that the log 1 has been rotated once since the output torque starts to increase. The operation of the variable speed drive source 21 is stopped by the signal of, and the position of the roller bar 7 with respect to the pressure bar base 4 is fixed.

2. 前記実施例では、回転体としてローラーバー7を用いた場合を示したが、ローラーバー7に代えて図7に示すように、回転方向に多数の突刺体55を有する多数の円盤状ロール57を用いても良い。
これら円盤状ロール57は、モータ(図示せず)により矢印方向に回転駆動させられる軸59の軸中心線方向に所定間隔をおいて、各々キー(図示せず)により固定されている。
また該軸59の軸中心線方向で隣り合う円盤状ロール57の各間には、刃物3の刃先の前方で原木1表面を加圧するためのノーズバー61を、後述する図9で示すように原木1から一定の厚さの単板を得る状態となった時、刃物3の刃先3aから垂直に引いた一点鎖線で示す仮想線Z−Zとノーズバー61の加圧部先端61aとの間隔が、前記単板の厚さの90%の値となる状態で配置する。
これら円盤状ロール57、軸59及びノーズバー61等は、詳細は省略するが図1で示した取付台15に備え、可変速駆動源21の作動によりローラーバー7と同様にプレッシャーバー台4に対し一体で往復移動自在とする。
また軸59とモータ11との間にはワンウェイクラッチ(図示せず)を備え、通常は円盤状ロール57の突刺体55の先端の周速は原木1の周速より小となる所定の値で回転させる。
その他の構成は前記実施例と同様に備え、制御器14は同じく該第1距離の減少に反比例してスピンドル41の時間当りの回転数Nを増大させるように制御し且つまた次のように各部材を制御するように設けられている。
2. In the above embodiment, the case where the roller bar 7 is used as the rotating body is shown, but as shown in FIG. 7 instead of the roller bar 7, a large number of disc-shaped rolls having a large number of piercing bodies 55 in the rotation direction. 57 may be used.
These disk-shaped rolls 57 are fixed by keys (not shown) at predetermined intervals in the axial center line direction of a shaft 59 that is driven to rotate in the direction of an arrow by a motor (not shown).
Further, a nose bar 61 for pressurizing the surface of the raw wood 1 in front of the cutting edge of the blade 3 is provided between the adjacent disc-shaped rolls 57 in the axial center line direction of the shaft 59 as shown in FIG. When a single plate having a certain thickness is obtained from 1, the distance between the phantom line ZZ indicated by the alternate long and short dash line drawn vertically from the cutting edge 3a of the blade 3 and the pressure part tip 61a of the nose bar 61 is It arrange | positions in the state used as the value of 90% of the thickness of the said single plate.
The disc-shaped roll 57, the shaft 59, the nose bar 61 and the like are provided on the mounting base 15 shown in FIG. 1 although not described in detail, and are operated with respect to the pressure bar base 4 similarly to the roller bar 7 by the operation of the variable speed drive source 21. Integrated reciprocating movement.
A one-way clutch (not shown) is provided between the shaft 59 and the motor 11, and the peripheral speed at the tip of the piercing body 55 of the disc-shaped roll 57 is usually a predetermined value that is smaller than the peripheral speed of the log 1. Rotate.
Other configurations are provided in the same manner as in the above embodiment, and the controller 14 controls the spindle 41 so as to increase the rotational speed N of the spindle 41 in inverse proportion to the decrease in the first distance. It is provided to control the member.

円柱原木1の切削の際は、予め可変速駆動源21を作動させることで円盤状ロール57、軸59及びノーズバー61を移動させ、図7に示すように、刃物3の刃先3aから垂直に引いた一点鎖線で示す仮想線Z−Zに対し、突刺体55の先端が原木1側に例えば3mm突出した状態に移動待機させておく。
上記状態で前記実施例と同様に、矢印方向に回転させられる原木1に向けて刃物3、円盤状ロール57、軸59及びノーズバー61を一体に移動させ且つ次のように各部材を制御する。
When cutting the cylindrical log 1, the disk-shaped roll 57, the shaft 59 and the nose bar 61 are moved by operating the variable speed drive source 21 in advance, and is pulled vertically from the cutting edge 3 a of the cutter 3 as shown in FIG. 7. The tip of the piercing body 55 is moved and waited for 3 mm toward the log 1 side, for example, with respect to the virtual line ZZ indicated by the alternate long and short dash line.
In the above state, the blade 3, the disc-shaped roll 57, the shaft 59 and the nose bar 61 are moved together toward the log 1 rotated in the direction of the arrow as in the above embodiment, and each member is controlled as follows.

前記移動により図7に示すように仮想線Z−Zの位置が原木1の周面の位置に至ると、円盤状ロール57の突刺体55の先端が原木1の外周1aに3mmの深さで突刺され、この状態で円盤状ロール57は原木1から力を受けワンウェイクラッチの作用により突刺体55の先端の周速が原木1と等しくなって回転させられ、次いで図8に示すように刃物3により原木1が切削され順次圧さが増大する単板Pが得られる。
この刃物3等から受ける切削抵抗で前記実施例と同様に原木1の周速が減少し、これに追従して円盤状ロール57の周速も減少する。
やがて突刺体55の先端の周速が前記所定の値と等しくなると、同じくワンウェイクラッチの作用により円盤状ロール57から原木1を切削するための主な動力が伝達され、スピンドル41から原木1に供給される動力は単独では切削するためには不十分な大きさに設定されていても、問題なく切削し続けることができる。
When the position of the imaginary line ZZ reaches the position of the circumferential surface of the log 1 as shown in FIG. 7 by the movement, the tip of the piercing body 55 of the disc-shaped roll 57 is 3 mm deep in the outer periphery 1a of the log 1. In this state, the disc-shaped roll 57 receives the force from the log 1 and is rotated by the action of the one-way clutch so that the peripheral speed of the tip of the puncture body 55 is equal to that of the log 1, and then the blade 3 as shown in FIG. As a result, the log 1 is cut, and a single plate P whose pressure increases sequentially is obtained.
The peripheral speed of the log 1 is reduced by the cutting force received from the blade 3 and the like, and the peripheral speed of the disc-shaped roll 57 is also reduced following this.
When the peripheral speed at the tip of the piercing body 55 eventually becomes equal to the predetermined value, the main power for cutting the log 1 from the disc-shaped roll 57 is transmitted by the action of the one-way clutch, and supplied from the spindle 41 to the log 1. Even if the power to be set is set to a size insufficient for cutting by itself, cutting can be continued without any problem.

また前記実施例と同様に、モータ11に設けたトルクメータ12から出力トルクが増大し始めたことの信号を受けた制御器14は、該信号を受けた時から最初にスピンドル41が1回転する間に、刃物3に対し円盤状ロール57、軸59及びノーズバー61を次のように原木1から遠ざかる方向に移動させる。
即ち前記実施例と同様に、前記最初の1回転におけるスピンドル41の回転角度に応じて原木1から刃物3により切削される単板Pの厚さは順次増大する。
そこで制御器14は、該単板の厚さの増大に比例して円盤状ロール57、軸59及びノーズバー61が図8で右方向に移動し、該1回転した後に図9に示すように仮想線Z−Zと円盤状ロール57の突刺体55の先端とがほぼ一致する位置で停止するように可変速駆動源21を作動させる。
スピンドル41が該最初の1回転した後は、必要な動力の大部分は円盤状ロール57から供給し且つノーズバー61の加圧部先端61aにより原木1の周面を前記設定された位置で加圧しつつ原木1を切削し、前記実施例と同様に一定厚さの単板Pを得るのである。
Similarly to the above-described embodiment, the controller 14 that has received a signal that the output torque has started to increase from the torque meter 12 provided in the motor 11 first rotates the spindle 41 once the signal has been received. In the meantime, the disc-shaped roll 57, the shaft 59, and the nose bar 61 are moved in the direction away from the log 1 with respect to the blade 3.
That is, as in the above-described embodiment, the thickness of the veneer P that is cut from the raw wood 1 by the cutter 3 increases sequentially in accordance with the rotation angle of the spindle 41 in the first rotation.
Accordingly, the controller 14 moves the disk-shaped roll 57, the shaft 59 and the nose bar 61 in the right direction in FIG. 8 in proportion to the increase in the thickness of the single plate, and after the first rotation, as shown in FIG. The variable speed drive source 21 is operated so that the line ZZ and the tip of the piercing body 55 of the disc-shaped roll 57 substantially coincide with each other.
After the first rotation of the spindle 41, most of the necessary power is supplied from the disc-shaped roll 57, and the peripheral surface of the log 1 is pressurized at the set position by the pressure portion tip 61a of the nose bar 61. The log 1 is cut while obtaining a single plate P having a constant thickness in the same manner as in the above embodiment.

3.前記示したローラーバー7や円盤状ロール57等の回転体は、切削するべく鉋台及びプレッシャーバー台が原木に向かって移動する前に、回転体の原木側外周が、前記切削仮想線上又は切削仮想線から原木側に所定量突出した位置まで移動させたが、遅くとも原木の切削が開始されるまでにこれら位置へ移動すれば良い。
4.本発明の対象となる原木は、円柱原木の他、外周に凹部があるがほぼ円柱状である原木や、ベニヤレースでの切削を中断し外周が前記曲線となっている原木であっても良い。
5.以上の説明では原木を支持する支持体としてスピンドルを示したが、スピンドルを用いず原木外周に回転方向に間隔をおいて配置された複数の従動又は回転駆動されるロールにより支持する構成としても良い。
6.以上の説明では定位置に設けたスピンドルで支持した原木に対し、鉋台及びプレッシャーバー台を接近・離隔するように構成したが、鉋台及びプレッシャーバー台を移動させずスピンドル等の支持体の移動により原木を鉋台及びプレッシャーバー台に向けて移動させ切削する構成としても良い。
3. The rotating body such as the roller bar 7 and the disk-shaped roll 57 shown above is configured so that the log side outer periphery of the rotating body is on the cutting imaginary line or the cutting imaginary line before the gantry and the pressure bar base move toward the log. Although it moved to the position which protruded the predetermined amount from the line to the log side, it should just move to these positions by the time the cutting of the log is started at the latest.
4). The raw wood targeted by the present invention may be, in addition to a cylindrical raw wood, a raw wood having a substantially cylindrical shape with a concave portion on the outer periphery, or a raw wood having an outer periphery that is curved as described above by cutting with a veneer lace. .
5. In the above description, the spindle is shown as a support for supporting the log, but it is also possible to use a spindle that is supported by a plurality of driven or rotationally driven rolls arranged on the outer periphery of the log at intervals in the rotation direction. .
6). In the above description, the base and the pressure bar base are configured to approach and separate from the log supported by the spindle provided at a fixed position. However, the base and the pressure bar base are not moved, and the spindle or other support is moved. It is good also as a structure which moves and cuts a raw wood toward a stand and a pressure bar stand.

実施例の全体の側面説明図である。It is side surface explanatory drawing of the whole Example. 図1において一点鎖線X−Xより矢印方向を見た部分断面説明図である。FIG. 2 is a partial cross-sectional explanatory view of the arrow direction in FIG. 図1において破線Aで囲んだ箇所の拡大説明図である。FIG. 2 is an enlarged explanatory diagram of a portion surrounded by a broken line A in FIG. 1. 実施例の作動説明図である。It is operation | movement explanatory drawing of an Example. 実施例の作動説明図である。It is operation | movement explanatory drawing of an Example. 実施例の作動説明図である。It is operation | movement explanatory drawing of an Example. 変更例の要部拡大説明図である。It is principal part expansion explanatory drawing of the example of a change. 変更例の作動説明図である。It is operation | movement explanatory drawing of the example of a change. 変更例の作動説明図である。It is operation | movement explanatory drawing of the example of a change. 従来装置の要部の拡大側面説明図である。It is expansion side explanatory drawing of the principal part of the conventional apparatus.

符号の説明Explanation of symbols

1…原木
3…刃物
7…ローラーバー
11…可変速駆動源
12…トルクメータ
20…検出器
21…可変速駆動源
33…検出器
34…可変速駆動源
40…検出器
42…可変速駆動源
DESCRIPTION OF SYMBOLS 1 ... Log 3 ... Blade 7 ... Roller bar 11 ... Variable speed drive source 12 ... Torque meter 20 ... Detector 21 ... Variable speed drive source 33 ... Detector 34 ... Variable speed drive source 40 ... Detector 42 ... Variable speed drive source

Claims (8)

鉋台に固定され原木を切削する刃物と、 該刃物の刃先より原木回転方向上手側で、鉋台と一体的に供えられたプレッシャーバー台に、第1移動装置により原木へ接近・離隔する方向に往復動自在に設けられ、該刃物の刃先とほぼ平行な軸中心線を有する回転体と、 回転体を回転駆動する駆動部材と、 原木を支持する支持体と、 鉋台及び支持体の少なくとも一方に設けら、鉋台及び支持体を接近又は離隔する方向に往復動させる第2移動装置とからなるベニヤレースにより、原木を支持体により支持しつつ回転させ、第2移動装置の作動により原木と鉋台とを接近させ切削する際、 遅くとも原木の切削が開始されるまでに第1移動装置を作動させ、回転体をその原木側外周が、原木の回転で切削が行なわれた時に刃物に切削されると想定される切削仮想線上又は該切削仮想線から原木側にある位置まで移動させ、切削開始時から原木が最初に1回転する間に該回転体を順次原木から離れる方向で所定の位置まで移動させる原木の切削方法。 A blade that is fixed to the table and that cuts the log, and on the upper side of the cutting direction of the log from the cutting edge of the tool, a pressure bar table that is provided integrally with the table and reciprocates in a direction that approaches and separates the log by the first moving device Provided on at least one of a rotating body that is movably provided and has a shaft center line substantially parallel to the cutting edge of the blade, a drive member that rotationally drives the rotating body, a support that supports the log, and a support base and a support al is, the veneer lathe comprising a second moving device for reciprocating in a direction toward or away from the鉋台and support to rotate while supporting the timber by a support, a timber and鉋台by the operation of the second moving device The first moving device is actuated before cutting of the raw wood starts at the latest, and the rotating body is cut into a blade when the raw wood side is cut by the rotation of the raw wood. And thought A raw wood that is moved to a position on the cutting virtual line or a position on the raw wood side from the cutting virtual line, and that the rotating body is sequentially moved to a predetermined position in a direction away from the raw wood while the raw wood makes one rotation from the start of cutting. Cutting method. 回転体がローラーバーである請求項1記載の原木の切削方法。 The raw wood cutting method according to claim 1, wherein the rotating body is a roller bar. 回転体が、外周に回転方向に間隔をおいて多数の突起体が設けられた円盤状部材を、軸中心線方向に間隔をおいて多数配置して構成されている請求項1記載の原木の切削方法。 The raw wood according to claim 1, wherein the rotating body is configured by arranging a large number of disk-shaped members having a plurality of protrusions provided on the outer periphery at intervals in the rotation direction at intervals in the axial center line direction. Cutting method. 原木がほぼ円柱状に形成されている原木である請求項1乃至3のいずれかに記載した原木の切削方法。 The raw wood cutting method according to any one of claims 1 to 3 , wherein the raw wood is a raw wood that is formed in a substantially cylindrical shape. 鉋台に固定され回転する原木を切削する刃物と、 鉋台の、該刃物の刃先より原木回転方向上手側に備えられ、第1移動装置により原木へ接近又は離隔自在に設けられた、該刃物の刃先とほぼ平行な軸中心線を有する回転体と、 回転体を回転駆動する第1駆動部材と、 駆動部材のトルクを検出するトルク検出器と、 原木を回転自在に支持する支持体と、 支持体を回転駆動する第2駆動部材と、 原木の回転角度を検出する回転角度検出器と、 鉋台及び支持体の少なくとも一方に設けら、鉋台及び支持体を接近又は離隔する方向に往復動させる第2移動装置と、 支持体により支持した原木を第2駆動部材の作動で回転させること及び第2移動装置を作動させ原木の1回転当り予め設定された量づつ鉋台と支持体とを順次接近させることを、いずれか一方を先に又は同時に行い、 また遅くとも、該刃物により原木が切削されるまでに、第1移動装置の作動により回転体を、回転体の原木側外周が、原木が切削された時に刃物に切削されると想定される切削仮想線上にある位置又は該切削仮想線から原木側に所定量突出した位置まで移動させ、 更に該第2移動装置を作動させ始めた後であってトルク検出器から出されるトルクが増大し始めた信号により回転体を前記位置より原木から遠ざかる方向に移動させ始め、該増大し始めた信号が出されてから最初に原木が1回転するまでの間に、回転角度検出器により検出される原木の回転角度に応じて前記遠ざかる方向で予め設定された位置へ順次移動させ、原木が1回転した後に所定の位置で該移動を停止するように第1移動装置の作動を制御する制御器と、 を設けた原木の切削装置。 A cutting tool fixed to the table and cutting the rotating log; and a cutting edge of the tool provided on the upper side of the table in the rotation direction of the log from the cutting edge of the cutting tool and provided close to or away from the log by the first moving device A rotating body having an axis center line substantially parallel to the first rotating member, a first driving member that rotationally drives the rotating body, a torque detector that detects torque of the driving member, a support body that rotatably supports the log, and a support body a second drive member for rotationally driving and a rotation angle detector for detecting the rotation angle of the timber, provided we are in at least one of鉋台and support, the reciprocating in a direction toward or away from the鉋台and support and 2 moving device, thereby sequentially close a preset amount at a time鉋台per rotation of the timber is operated to be rotated and the second moving device supporting the timber by operation of the second driving member and the support member by a support That Either one of them is performed first or simultaneously, and at the latest, until the log is cut by the cutting tool, the rotating body is moved by the operation of the first moving device, and the outer edge of the rotating log on the log side is cut by the cutting tool. A torque detector after being moved to a position on a cutting imaginary line that is assumed to be cut by or to a position protruding a predetermined amount from the cutting imaginary line toward the log, and further starting to operate the second moving device In response to the signal from which the torque started to increase, the rotary body starts to move away from the log from the position, and after the signal that started increasing is output until the first rotation of the log According to the rotation angle of the log detected by the angle detector, the first mover is sequentially moved to a preset position in the direction away from the log, and stops moving at a predetermined position after the log rotates once. Operation A controller for controlling the cutting apparatus for timber provided with. 回転体がローラーバーである請求項5記載の原木の切削装置。 6. The raw wood cutting device according to claim 5, wherein the rotating body is a roller bar. 回転体が、外周に回転方向に間隔をおいて多数の突起体が設けられた円盤状部材を、軸中心線方向に間隔をおいて多数配置して構成されている請求項5記載の原木の切削装置。 The raw wood according to claim 5, wherein the rotating body is configured by arranging a large number of disk-like members having a plurality of protrusions provided on the outer periphery at intervals in the rotation direction at intervals in the axial center line direction. Cutting equipment. 原木がほぼ円柱状に形成されている原木である請求項5乃至7のいずれかに記載した原木の切削装置。

The raw wood cutting device according to any one of claims 5 to 7 , wherein the raw wood is a raw wood formed in a substantially cylindrical shape.

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CN105643748A (en) * 2016-01-28 2016-06-08 李玉明 Clamping-shaft and non-clamping-shaft integrated rotary cutting machine for composite pressure bar

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DE102006027271B4 (en) * 2006-06-09 2008-06-12 Albrecht Bäumer GmbH & Co.KG Method for starting a peeling device for a film from a material block
CN103009450B (en) * 2012-12-05 2016-02-17 福州三森机械有限公司 A kind of rotary trunk-layer stripping machine without clamper of knife rest adjustable angle

Cited By (1)

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Publication number Priority date Publication date Assignee Title
CN105643748A (en) * 2016-01-28 2016-06-08 李玉明 Clamping-shaft and non-clamping-shaft integrated rotary cutting machine for composite pressure bar

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