JP5562187B2 - Supplying raw wood to veneer lace - Google Patents

Description

本発明は、ベニヤレースへ原木を供給する方法の改良に関するものである。   The present invention relates to an improvement in a method for supplying raw wood to a veneer lace.

従来、ベニヤレースへ原木を供給するに際し、ベニヤレースの前位に、適宜の原木芯出し装置と原木供給装置を配設し、原木芯出し装置を用いて、予め原木の所望の回転芯（回転中心軸）を個別に定めると共に、原木供給装置を用いて、所望の回転芯とベニヤレースのスピンドルの中心軸とを一致させるよう、個々の原木の姿勢（三次元的な位置）を調整して供給することは一般的に行われている。   Conventionally, when supplying a log to a veneer lace, an appropriate log centering device and a log supply device are arranged in front of the veneer lace, and a desired rotation core (rotation) of the log is previously obtained using the log centering device. (Center axis) is individually determined, and the posture (three-dimensional position) of each raw wood is adjusted so that the desired rotation core and the central axis of the spindle of the veneer race coincide with each other using a raw wood feeder. Supplying is generally done.

而して、前記所望の回転芯の定め方について、専ら大径の通直な南洋天然材を対象としていた時代には、原木の両端面に於ける外郭形状の中央部（中心部）同士を結ぶ線を、回転芯に定めるのが一般的であったが、比較的細くて湾曲した原木が混在する時期に至って以降は、原木を挟持して回転させる仮芯用のスピンドルを、原木芯出し装置に配設し、例えば原木の一部の外郭形状に基づいて仮に定めた仮軸芯と、前記仮芯用のスピンドルの中心軸とを一致させるように原木を挟持して少なくとも一回転させ、好ましくは原木の両端面近辺を含めた三箇所以上の外郭寸法を計測することによって、仮軸芯を中心とする原木の立体形状を概算すると共に、該立体形状に適応する軸芯、例えば帯状のベニヤ単板が最も大量に取得できる軸芯、或は例えば単板の取得総量が最大となる軸芯等を、回転芯に定めるのが主流となっており、更には、近時、国産杉・唐松等の針葉樹原木、或は早成の南洋植林材などをも対象とする時代に至って、例えば「原木の切削方法」（特開２００９−２４８３２０号公報）に開示される如く、所定位置に於て、原木の両端面に、直径を異ならせた多数の同心円状の環状光線を照射すると共に、原木の両端面の心材部分といずれかの環状光線とが概ね同心円状を成す状態に至るまで、原木を載置する原木載置部材を、手動操作を以って稼動させて、原木の両端面の位置を変位させることにより、多数の環状光線の中心と心材部分の中心とを一致させ、辺材とは含水率が異なる心材の部分形状に適応する軸芯を、回転芯に定める試みも成されている。   Thus, with regard to the method of determining the desired rotational core, in the era when only the large-diameter straight south sea natural material was targeted, the central portions (center portions) of the outer shape on both ends of the raw wood were In general, the connecting line is set to the rotating core, but after reaching the period when relatively thin and curved logs are mixed, the spindle for the temporary core that holds the logs and rotates them is centered. Disposed in the apparatus, for example, the temporary shaft core temporarily determined based on the outline shape of a part of the raw wood, and the central axis of the spindle for the temporary core is sandwiched and rotated at least one turn, Preferably, by measuring the outline dimensions of three or more places including the vicinity of both ends of the raw wood, the rough shape of the raw wood around the temporary shaft core is estimated, and the shaft core adapted to the solid shape, for example, a belt-like shape is used. A veneer veneer that can be obtained in the largest quantity, or For example, it has become the mainstream to determine the shaft core that maximizes the total acquisition amount of veneer as a rotating core, and more recently, conifer logs such as domestic cedar and karamatsu, or early-grown Nanyang planting materials. As a result, for example, as disclosed in “Raw Wood Cutting Method” (Japanese Patent Laid-Open No. 2009-248320), a large number of different diameters are provided on both ends of the raw wood at predetermined positions. The concentric circular light beam is irradiated, and the log placing member for placing the log is manually operated until the core material portions on both end faces of the raw wood and any of the circular light beams are in a substantially concentric state. By operating and shifting the position of both end faces of the raw wood, the center of the many annular rays and the center of the heartwood part are made to coincide with each other, and it adapts to the shape of the heartwood part with a different moisture content from the sapwood. Attempts have also been made to determine the shaft core as a rotating core.

また、直近では、年輪を有する原木から、板目状の単板を可及的に多く取得する為に、後に改めて詳述する如く、画像処理技術を用いて、年輪に適応する軸芯を、回転芯に定める方法も、既に本願特許出願人が開発・出願しており、而も、本願特許出願人の実践的な研究・検証によると、単板処理工程の円滑性・単板の乾燥適性・単板の品質・単板の取得率等を考慮した総合的な有益性からして、心材の部分形状又は年輪の少なくともいずれか片方と、既述の如く概算する立体形状との複合条件に適応する軸芯を、回転芯に定めるのも相当に有効であることが判明した。   Also, recently, in order to obtain as many plate-like veneers as possible from the raw wood having annual rings, as will be described in detail later, the shaft core adapted to the annual rings, using image processing technology, The method for determining the rotating core has already been developed and filed by the present applicant, and according to the practical research and verification by the present applicant, the smoothness of the veneer processing process and the suitability of drying the veneer.・ Comprehensive conditions of at least one of the partial shape of the core material or the annual rings and the solid shape to be estimated as described above from the viewpoint of comprehensive benefit considering the quality of the veneer, the acquisition rate of veneer, etc. It has been found that it is quite effective to determine the applicable shaft core as a rotary core.

また、たとえ、原木の立体形状の如何に拘わらず、心材の部分形状又は年輪の少なくともいずれか片方に適応する軸芯を、回転芯に定める場合であっても、予め個々の原木の材積を算定しておけば、単板を削成した後に、単板の取得率（歩留り）、帯状の単板の取得割合等を算出することができ、定めた回転芯の適不適・優劣等を判別するのにも至便であることから、やはり、原木芯出し装置に仮芯用のスピンドルを配設して、原木を少なくとも一回転させ、立体形状を概算することが推奨され、この場合にも、仮芯用のスピンドルで挟持した原木を、原木供給装置の原木把持機構によって把持し直してベニヤレースへ供給する構成を採ることになる。   In addition, the volume of individual raw wood is calculated in advance, even if the shaft core that adapts to at least one of the partial shape of the core material or at least one of the annual rings is determined as the rotating core, regardless of the solid shape of the raw wood. Then, after cutting the veneer, it is possible to calculate the acquisition rate (yield) of the veneer, the acquisition rate of the belt-like veneer, etc., and discriminate the suitability of the specified rotating core Therefore, it is recommended that a temporary spindle is installed in the log centering device to rotate the log at least once and approximate the three-dimensional shape. A configuration is adopted in which the raw wood sandwiched between the core spindles is gripped again by the raw wood gripping mechanism of the raw wood supply device and supplied to the veneer lace.

また一方、原木の姿勢を調整する手段について、以前は、例えば特許文献１に開示される如く、原木芯出し装置の箇所（乃至はその近傍）に於て、例えば原木を支持する少なくともいずれか片側の支持部材を（或は例えば原木を挟持する少なくともいずれか片側の仮芯用のスピンドルを）、垂直方向及び／又は水平方向に変位させるなどの手段を介して、予め原木の姿勢を調整してから、先端部に把持爪を具備した所定長さの把持具を有する原木把持機構を備えた原木供給装置を用い、前記把持具にて原木を把持して供給する手段が多用されていたが、近頃では、供給能率の向上を図る為に、先端部に把持爪を具備した伸縮自在な把持部材を有する原木把持機構を備えた原木供給装置を用い、少なくとも垂直方向乃至は垂直方向の成分を含む上下方向の変位については、前記仮芯用のスピンドルで挟持した原木を、前記把持部材で把持し直してから、ベニヤレースのスピンドルの位置へ供給するまでの間の適当な時期に、前記把持部材を適宜伸縮させて、原木の姿勢を調整する手段に改変されつつあり、斯様な機能を有する原木供給装置の実例としては、例えば特許文献２・特許文献３等に開示される原木供給装置が挙げられる。   On the other hand, as for the means for adjusting the posture of the log, previously, for example, as disclosed in Patent Document 1, for example, at least one side of supporting the log at the location (or the vicinity thereof) of the log centering device The posture of the log is adjusted in advance through means such as displacing the support member (or at least one of the temporary core spindles holding the log) in the vertical and / or horizontal direction. From the above, a means for grasping and supplying a raw wood with the grasping tool using a raw wood gripping device having a raw wood grasping mechanism having a grasping tool of a predetermined length provided with a gripping claw at a tip portion, Recently, in order to improve the supply efficiency, a log supply device having a log gripping mechanism having an extendable gripping member having a gripping claw at the tip is used, and includes at least a component in the vertical direction or the vertical direction. With respect to the downward displacement, the gripping member can be used at an appropriate time from when the raw wood sandwiched by the spindle for the temporary core is gripped by the gripping member to when it is supplied to the position of the veneer spindle. As a practical example of the log supply device having such a function, there is a log supply device disclosed in, for example, Patent Document 2 and Patent Document 3 and the like. Can be mentioned.

特公昭６１−２５５２１号公報Japanese Examined Patent Publication No. 61-25521 特許第３６７６５４６号公報Japanese Patent No. 3676546 特許第４２８２０３９号公報Japanese Patent No. 4282039

ところで、把持爪が介入する原木の部位には、原木を原木芯出し装置からベニヤレースに向けて起動させる際と、ベニヤレースのスピンドルの位置まで所要距離移動させて停止させる際に、原木の自重の慣性力に起因する応力が集中的に作用して、原木の把持姿勢を歪め、供給姿勢の精度を劣化させ易く、而も、前記慣性力は、原木の重心の位置に集約的に作用するので、原木の端面側から見た場合に、重心の位置と把持爪が介入する部位とが離れていると、別途に、把持爪が介入する部位を回転中心とするモーメントの因子が加わることになるが、公知の如く、力のモーメントの大きさは、力の大きさ（原木の自重の慣性力）と、回転中心（把持爪が介入する部位）から力の作用点（原木の重心の位置）までの距離（位置ベクトル＝原木の端面側から見た場合の二次元的な間隔）の積で定まり、同じ原木であれば、前記距離が大きいほど、力のモーメントの大きさが大きくなる故に、原木の供給姿勢の精度が劣化し易いにも拘わらず、前記各文献等に開示される供給方法を含めた、既知の原木の供給方法にあっては、先端部に把持爪を具備した把持部材を用いて、原木を把持する際に、原木端面のいずれの部位を把持するのが適切であるのかという点には、然程格別な関心は払われておらず、前記各文献にも特段の記載はない。   By the way, in the part of the raw wood where the gripping claws intervene, when the raw wood is started from the raw wood centering device toward the veneer race, and when it is moved to the spindle position of the veneer race and stopped by the required distance, The stress caused by the inertial force is intensively distorted, and the gripping posture of the raw wood is distorted, and the accuracy of the supply posture is liable to be deteriorated. The inertial force acts intensively on the position of the center of gravity of the raw wood. Therefore, when viewed from the end face side of the raw wood, if the position of the center of gravity and the part where the gripping claws intervene are separated from each other, a factor of the moment centering on the part where the gripping claws intervene is added. However, as is well known, the magnitude of the force moment is determined by the magnitude of the force (the inertia of the weight of the raw wood) and the point of action of the force (the center of gravity of the raw wood) from the center of rotation (the part where the gripping claws intervene) ) Distance (position vector = raw wood If the same log, the greater the distance, the greater the magnitude of the moment of force, and the accuracy of the supply posture of the log will deteriorate. Although it is easy, in the known raw wood supply method including the supply methods disclosed in the above-mentioned documents etc., when holding the raw wood using a gripping member having a gripping claw at the tip. Furthermore, no particular attention has been paid to which part of the end face of the log is appropriate, and there is no particular description in each of the above documents.

もっとも、不定形で不均質な原木の重心の位置を、素早く正確に特定することは、技術的に極めて困難であり、また仮に、原木の重心の位置を素早く正確に特定することができたとしても、原木をベニヤレースのスピンドルの位置へ供給する際には、把持部材の先端部とベニヤレースのスピンドルとの衝突を回避することが必須要件である故に、原木の端面側から見て重心と重なる部位に把持爪を介入させて把持し、供給することは事実上不可能であるが、いずれにしても、既知の原木の供給方法にあっては、あらゆる原木を対象として、把持部材の先端部とベニヤレースのスピンドル（及び仮芯用のスピンドル）との衝突を確実に回避する為に、全ての原木について一律に、原木の端面側から見て重心の位置から著しく離れた原木外周寄りの部位に、把持部材の先端部の把持爪を介入させて把持する態様が採られており、先記慣性力に起因して応力が発生する際の、力のモーメントの多寡に拘わる位置ベクトルの増大を黙認し、結果的に、原木の供給姿勢の精度劣化を黙殺していたが、原木の供給姿勢の精度劣化は、帯状の単板の収量や、単板の総収量等に悪影響を及ぼす要因であり、また、先記慣性力は、把持部材をベニヤレースに向けて起動させる際と所要距離移動させて停止させる際の加速度に比例して大きくなる故に、斯様な従来の供給方法を採る限りに於ては、加速度を増大させて供給能率の向上を図ることが困難であり、ベニヤレースの稼働率を低下させている遠因でもあった。   However, it is technically extremely difficult to quickly and accurately determine the position of the center of gravity of an irregular and inhomogeneous wood, and it is assumed that the position of the center of gravity of a raw wood could be specified quickly and accurately. However, when supplying raw wood to the veneer lace spindle position, it is essential to avoid collision between the tip of the gripping member and the spindle of the veneer lace. It is practically impossible to grip and supply gripping claws with overlapping parts, but in any case, with any known raw wood supply method, the tip of the gripping member can be applied to any raw wood. In order to reliably avoid collision between the spindle and the spindle of the veneer race (and the spindle for the temporary core), all the logs are evenly positioned near the outer circumference of the log, which is significantly separated from the position of the center of gravity when viewed from the end face side of the log The gripping claw at the tip of the gripping member is interposed at the part, and the position vector is increased when the stress is generated due to the inertial force described above. As a result, the deterioration in the accuracy of the supply posture of the raw wood was silent, but the deterioration in the accuracy of the supply posture of the raw wood is a factor that adversely affects the yield of the strip-like veneer, the total yield of the veneer, etc. In addition, since the inertial force increases in proportion to the acceleration when the gripping member is started toward the veneer race and when the gripping member is moved by the required distance and stopped, such a conventional supply method is adopted. Insofar as it is difficult to increase the supply efficiency by increasing the acceleration, it is also a remote cause of decreasing the operating rate of the veneer race.

本発明は、原木の重心の位置が、総じて、所望の回転芯の中央部近辺に在る傾向があることに着目し、該傾向を活用して、前記従来の供給方法の欠陥・不具合等を解消すべく開発したものであって、具体的には、ベニヤレースの前位に、仮芯用のスピンドルを備えた原木芯出し装置と、先端部に把持爪を具備した伸縮自在な把持部材を有する原木把持機構を備えた原木供給装置を配設し、予め原木の所望の回転芯を個別に定めると共に、該所望の回転芯とベニヤレースのスピンドルの中心軸とを一致させるよう、個々の原木の姿勢を調整して供給するに際し、少なくとも垂直方向乃至は垂直方向の成分を含む上下方向の調整については、前記仮芯用のスピンドルで挟持した原木を、前記把持部材で把持し直してから、ベニヤレースのスピンドルの位置へ供給するまでの間の適当な時期に、前記把持部材を適宜伸縮させて姿勢を調整する原木の供給方法であって、仮芯用のスピンドルで挟持した原木を、把持部材で把持し直す際には、各原木の両端面に於ける所望の回転芯の末端部から、ベニヤレースのスピンドルの半径に最少安全保障間隔を加算して算出される、所定距離だけ離れた部位に把持爪を介入させて把持し、供給することを特徴とするベニヤレースへの原木の供給方法（請求項１）を、基礎的な発明として提案する。   The present invention pays attention to the fact that the position of the center of gravity of the raw wood generally tends to be near the center of the desired rotating core, and by utilizing this tendency, defects and inconveniences of the conventional supply method are solved. Specifically, it was developed to eliminate, specifically, a log centering device equipped with a spindle for temporary core at the front of the veneer lace, and a telescopic gripping member equipped with a gripping claw at the tip. A log supply device having a log holding mechanism is provided, and a desired rotation core of the log is determined individually in advance, and the individual rotation logs are aligned with the center axis of the veneer spindle. When adjusting and supplying the posture, at least in the vertical direction or the vertical direction adjustment including the vertical component, the raw wood sandwiched by the spindle for the temporary core is gripped again by the gripping member, Veneer lace spind A method of supplying a raw wood by adjusting the posture by appropriately expanding and contracting the gripping member at an appropriate time until it is supplied to the position, wherein the raw wood sandwiched between spindles for temporary lead is gripped by the gripping member. When reworking, gripping claws at a predetermined distance away from the end of the desired rotating core on each end face of each log, calculated by adding the minimum security interval to the radius of the veneer spindle. As a basic invention, a method for supplying raw wood to a veneer lace, characterized in that it is gripped and supplied by intervening the above, is proposed.

また、一層実用的な発明として、前記請求項１の発明と同様の機構・装置類を用い、予め原木の所望の回転芯を個別に定めると共に、該所望の回転芯とベニヤレースのスピンドルの中心軸とを一致させるよう、個々の原木の姿勢を調整して供給するに際し、少なくとも垂直方向乃至は垂直方向の成分を含む上下方向の調整については、前記仮芯用のスピンドルで挟持した原木を、前記把持部材で把持し直してから、ベニヤレースのスピンドルの位置へ供給するまでの間の適当な時期に、前記把持部材を適宜伸縮させて姿勢を調整する原木の供給方法であって、大多数の普通の原木を対象とする場合には、各原木の両端面に於ける所望の回転芯の末端部から、ベニヤレースのスピンドルの半径に最少安全保障間隔を加算して算出される、所定距離だけ離れた部位に把持爪を介入させて把持するよう、前記把持部材の伸縮量を調整すると共に、前記所定距離だけ離れた部位に把持爪を介入させようとすると、少なくともいずれか片側の把持部材の先端部と仮芯用のスピンドルとが衝突する虞が生じる、少数の例外的な原木を対象とする場合に限っては、特例的に、該当する側の把持部材について、仮芯用のスピンドルとの衝突が、最少安全保障間隔を隔てて回避し得る部位に把持爪を介入させるよう、伸縮量を調整して原木を把持し、供給する供給方法（請求項２）を提案すると共に、一層具体的な発明の形態例として、仮芯用のスピンドルの太さを、ベニヤレースのスピンドルの太さに比べて一段と細くした原木芯出し装置を用いて成る請求項１又は請求項２記載のベニヤレースへの原木の供給方法（請求項３）と、把持部材を水平方向に往復移動させる、水平移動式の原木移動機構を備えた原木供給装置を用いて成る請求項１又は請求項２又は請求項３記載のベニヤレースへの原木の供給方法（請求項４）と、把持部材を振子状に揺動させる、揺動式の原木移動機構を備えた原木供給装置を用いて成る請求項１又は請求項２又は請求項３記載のベニヤレースへの原木の供給方法（請求項５）とを提案する。   Further, as a more practical invention, a mechanism and devices similar to those of the first aspect of the invention are used to individually determine a desired rotation core of the raw wood in advance, and the desired rotation core and the center of the spindle of the veneer race When adjusting and supplying the posture of each individual log so as to match the axis, at least for vertical adjustment including vertical or vertical components, the log held by the spindle for the temporary core is A method for supplying raw wood, wherein the gripping member is appropriately expanded and contracted to adjust its posture at an appropriate time from when it is gripped again by the gripping member to when it is supplied to the position of the veneer spindle. If the target is a normal log, the predetermined distance is calculated by adding the minimum security interval to the radius of the spindle of the veneer lace from the end of the desired rotary core on each end face of each log. When adjusting the amount of expansion and contraction of the gripping member so that the gripping claw is intervened and gripped at a site separated by a distance, and when trying to interpose the gripping claw at a site separated by the predetermined distance, at least one of the gripping members Only when a small number of exceptional logs that may cause a collision between the tip of the core and the spindle for the temporary core occurs, the spindle for the temporary core is specially applied to the gripping member on the corresponding side. And a supply method (Claim 2) for gripping and supplying the raw wood by adjusting the amount of expansion and contraction so that the gripping claws are intervened in a portion where a collision with the robot can be avoided at a minimum security interval. The veneer according to claim 1 or 2, wherein a specific example of the invention is a log centering device in which the thickness of the spindle for the temporary core is made thinner than that of the spindle of the veneer lace. To the race 4. The wood supply method (Claim 3) and a log supply device provided with a horizontally moving log moving mechanism for reciprocating a gripping member in a horizontal direction. 3. A method of supplying raw wood to a veneer race (claim 4) and a raw wood supply device comprising a swinging raw wood moving mechanism for swinging a gripping member in a pendulum shape. Alternatively, a method for supplying raw wood to a veneer lace according to claim 3 (claim 5) is proposed.

前記請求項１に係る発明によれば、従来の供給方法よりも概して原木の重心により近い所定の部位（各原木の両端面に於ける所望の回転芯の末端部から、前記所定距離だけ離れた部位）に、把持爪を介入させて把持するので、当該部位に、原木の自重に起因する慣性力が作用する際の、力のモーメントの多寡に拘わる位置ベクトルを、従来の供給方法に比べて縮小させて、前記把持爪が介入する部位に作用する応力を、従来の供給方法に比べて低減させることができ、当初の原木の把持姿勢がそのまま維持し易いので、従来の供給方法よりも精度良く原木を供給することが可能となる。   According to the first aspect of the present invention, the predetermined portion that is generally closer to the center of gravity of the raw wood than the conventional supply method (the predetermined distance away from the end of the desired rotating core at both end faces of each raw wood) Since the gripping claw is interposed in the part), the position vector related to the amount of moment of force when the inertial force due to the weight of the raw wood acts on the part is compared with the conventional supply method. The stress acting on the part where the gripping nail intervenes can be reduced compared to the conventional supply method, and the gripping posture of the original raw wood can be maintained as it is, so it is more accurate than the conventional supply method. It will be possible to supply logs well.

但し、斯様な供給方法を採る場合の要注意事項は、把持部材の先端部と仮芯用のスピンドルとの相対位置関係であって、原木芯出し装置に於て仮に定めた仮軸芯と、先述の如き各種の条件に適応させて定める所望の回転芯とは、三次元的に行き違う位置にあるのが実態であり、少なくとも原木のいずれか片側の端面に於て、所望の回転芯の末端部が、仮軸芯よりも下方に位置する現象が少なからず発生することから、若しも斯様な現象が発生しても、把持部材の先端部と仮芯用のスピンドルとの衝突を回避しつつ、前記所定の部位に把持爪を介入させて把持することが可能であるか否かを判別することが肝要であり、仮に把持部材の先端部と仮芯用のスピンドルとが衝突する虞があれば、把持を中止し、例えば適宜の除去手段を用いて、原木を処理工程から除去するなどの処置が必要となるので、ベニヤレースの稼働率を低下させる虞が生じる。   However, the precautions when adopting such a supply method are the relative positional relationship between the tip of the gripping member and the spindle for the temporary core, and the temporary axis core temporarily determined by the log centering device. Actually, the desired rotational core determined by adapting to various conditions as described above is in a three-dimensional crossing position, and at least the desired rotational core at one end face of the raw wood Since the phenomenon that the end part of the grip is located below the temporary shaft core occurs not a little, even if such a phenomenon occurs, the collision between the tip of the gripping member and the spindle for the temporary core will occur. It is important to determine whether or not it is possible to interpose a gripping claw at the predetermined site while the tip of the gripping member and the spindle for the temporary core collide. If there is a risk of doing so, stop gripping and use, for example, an appropriate removal means to Since the treatment, such as removal from the treatment process is required, resulting is a fear of lowering the operation rate of the veneer lathe.

而して、仮芯用のスピンドルは、単に原木を把持して空転させるだけの軽い負荷を負担すれば足りるので、実用に差支えない範囲内で相応に細くして差支えないことから、前記現象の発生に対処すべく、予め仮芯用のスピンドルの太さを、ベニヤレースのスピンドルに比べて一段と細くしておけば（請求項３参照）、大多数の普通の原木を処理する限りに於ては、たとえ前記現象（少なくとも原木のいずれか片側の端面に於て、所望の回転芯の末端部が、仮軸芯よりも下方に位置する現象）が発生しても、把持部材の先端部と仮芯用のスピンドルとの衝突を回避しつつ、前記所定の部位に把持爪を介入させて把持することは可能であって、格別支障が生じことはない。   Thus, since the spindle for the temporary core only needs to bear a light load by simply grabbing the raw wood and causing it to idle, it can be made appropriately thin within a range that does not interfere with practical use. In order to deal with the occurrence, if the thickness of the spindle for the temporary lead is made thinner than that of the veneer spindle in advance (see claim 3), as long as the majority of ordinary logs are processed, Even if the above phenomenon occurs (a phenomenon in which the end portion of the desired rotating core is located below the temporary shaft core on at least one end face of the raw wood), While avoiding a collision with the spindle for the temporary lead, it is possible to grip the gripping nail by intervening the predetermined portion, and no particular trouble occurs.

しかし、少数の例外的な原木を処理する場合、即ち、例えば外周の断面が瓢箪状の如く著しく変形した原木や、或は例えば過度に湾曲した原木を処理する場合、更には例えば肥大成長に顕著な偏りがある原木に於ける心材の部分形状又は年輪のいずれかに適応する軸芯を、回転芯に定める場合等については、仮軸芯と所望の回転芯との三次元的な所在位置の差異が過度に大きくなることがあるので、たとえ、仮芯用のスピンドルの太さを、実用に差支えない範囲内で相応に細くしたとしても、前記現象が発生した場合の少なくとも一部の原木については、前記所定の部位へ、把持爪を介入させようとすると、把持部材の先端部が仮芯用のスピンドルに衝突することがあり、把持を中止して、原木を、処理工程から除去するなどの処置を採る必要が生じる。   However, when processing a small number of exceptional logs, that is, for example, when processing a log whose outer cross section is significantly deformed like a bowl, or for example, an excessively curved log, it is even more prominent in hypertrophy growth, for example. For the case where the shaft core that is suitable for either the partial shape of the core material or the annual ring in the unbalanced log is determined as the rotating core, the three-dimensional location of the temporary shaft core and the desired rotating core Since the difference may become excessively large, even if the thickness of the spindle for the temporary lead is appropriately reduced within a practical range, at least a part of the logs when the above phenomenon occurs If the gripping claw is caused to intervene in the predetermined part, the tip of the gripping member may collide with the spindle for the temporary core, the gripping is stopped, and the log is removed from the processing step. Necessary to take action It occurs.

それに対して、前記請求項２に係る発明によれば、大多数の普通の原木については、把持部材の先端部とベニヤレースのスピンドルとの衝突を適確に回避しつつ、前記所定の部位に把持爪を介入させて把持するので、前記請求項１に係る発明と同様に、従来の供給方法に比べて、精度良く原木を供給することが可能となるのは勿論のこと、少数の例外的な原木についても、前記所定の部位に把持爪を介入させようとすると、少なくともいずれか片側の把持部材の先端部と仮芯用のスピンドルとが衝突する虞が生じる場合には、該当する把持部材の先端部と仮芯用のスピンドルとの衝突を適確に回避し得る部位に、把持爪を介入させて把持し、供給するので、把持を中止して、原木を、処理工程から除去するなどの処置は無用であり、ベニヤレースの稼働率を低下させる虞はない。   On the other hand, according to the invention according to claim 2, with respect to the majority of ordinary logs, the collision between the front end portion of the gripping member and the spindle of the veneer lace is appropriately avoided while the predetermined portion is placed. Since gripping claws are interposed and gripped, as in the invention according to claim 1, it is possible to supply raw wood with higher accuracy than the conventional supply method, as well as a few exceptional cases. If a gripping claw is intended to intervene in the predetermined part of a rough wood, if there is a risk that the tip of the gripping member on one side and the spindle for the temporary core will collide, the corresponding gripping member Since the gripping claw is inserted into a part where the collision between the tip of the core and the spindle for the temporary core can be avoided appropriately, the gripping is stopped and the raw wood is removed from the processing step. Treatment is useless and veneered They fear that lowering the vinegar operating rate is not.

尚、少数の例外的な原木については、該当する把持部材の先端部と仮芯用のスピンドルとの衝突を適確に回避し得る部位に、把持爪を介入させて把持するので、大多数の普通の原木に比べて、供給姿勢の精度が若干劣化する虞があるものの、把持する部位を、重心の位置に対して、従来の供給方法よりも遠くに離す必要はなく、従来の供給方法と同等以下程度に離せば足りるから、供給姿勢の精度の劣化も、従来の供給方法の場合と同等以下で済み、少数の特例的な処置であるから、実用的に格別問題となる虞はない。   Note that for a few exceptional logs, the gripping claws are interposed and gripped at a site where the collision between the tip of the gripping member and the spindle for the temporary core can be properly avoided. Although there is a risk that the accuracy of the supply posture may be slightly deteriorated compared with ordinary logs, it is not necessary to separate the gripped part farther than the conventional supply method with respect to the position of the center of gravity. Since it suffices to separate them to the same level or less, the deterioration of the accuracy of the supply posture can be reduced to the same level or lower as in the conventional supply method.

因に、原木供給装置に具備する原木移動機構の形式としては、把持部材を水平方向に往復移動させる、水平移動式（請求項４参照）と、把持部材を振子状に揺動させる、揺動式（請求項５参照）とが挙げられ、前者は、重量級の原木の供給に適し、後者は、軽量級の原木の高速供給に適するとされるが、本発明に於ては、特に制約なく使用し得る。   Incidentally, as the type of the log moving mechanism provided in the log supplying apparatus, the horizontal movement type (refer to claim 4) in which the gripping member is reciprocated in the horizontal direction, and the swinging in which the gripping member is swung in a pendulum shape. In the present invention, the former is suitable for supplying heavy-weight raw wood, and the latter is suitable for high-speed supply of light-weight raw wood. Can be used without.

本発明の実施に用い得る一連の装置類の正面概略説明図である。It is a front schematic explanatory drawing of a series of apparatuses which can be used for implementation of this invention. 図１に例示した一連の装置類の側面概略説明図である。FIG. 2 is a schematic side view of a series of apparatuses illustrated in FIG. 1. 図１・図２の装置類による仮軸芯の定め方の説明図である。It is explanatory drawing of how to determine the temporary axis by the apparatus of FIG. 1 and FIG. 図１・図２の装置類による原木半径の測り方の説明図である。It is explanatory drawing of how to measure the log radius by the apparatus of FIG. 1 and FIG. 図１・図２の装置類による原木の立体形状の定め方の説明図である。It is explanatory drawing of how to determine the solid shape of the raw wood by the apparatus of FIG. 1 and FIG. 図１・図２の装置類による原木の供給姿勢の定め方の説明図である。It is explanatory drawing of how to determine the supply posture of the raw wood by the apparatus of FIG. 1 and FIG. 図１・図２の装置類による普通の原木の把持態様の説明図である。It is explanatory drawing of the holding | grip aspect of the normal raw wood by the apparatus of FIG. 1, FIG. 図１・図２の装置類による原木の移動態様の説明図である。It is explanatory drawing of the movement aspect of a raw tree by the apparatus of FIG. 1, FIG. 図１・図２の装置類による例外的な原木の把持態様の説明図である。It is explanatory drawing of the holding | grip aspect of exceptional raw wood by the apparatuses of FIG. 1 and FIG. 図１・図２の装置類による別の供給態様の説明図である。It is explanatory drawing of another supply aspect by the apparatuses of FIG. 1, FIG. 本発明の実施に用い得る別の一連の装置類の正面概略説明図である。It is a front schematic explanatory drawing of another series of apparatuses which can be used for implementation of this invention. 本発明の実施に用い得る更に別の一連の装置類の正面概略説明図である。It is front schematic explanatory drawing of another series of apparatuses which can be used for implementation of this invention. 図１２に例示した一連の装置類の側面概略説明図である。It is a side schematic explanatory drawing of a series of apparatuses illustrated in FIG. 図１２・図１３の装置類による普通の原木の供給態様の説明図である。It is explanatory drawing of the supply aspect of the normal raw wood by the apparatus of FIG. 図１２・図１３の装置類による例外的な原木の供給態様の説明図である。It is explanatory drawing of the supply aspect of the exceptional raw wood by the apparatus of FIG. 図１２・図１３の装置類による別の供給態様の説明図である。It is explanatory drawing of another supply aspect by the apparatuses of FIG.

以下、本発明を図面に例示した実施の一例と共に更に詳述するが、本発明の実施に用いることができる原木芯出し装置、原木供給装置、ベニヤレース等については、その構成に関して格別の制約はなく、既に汎用されている既存の装置類を転用して差支えないので、それら一連の装置類の構成に関しては、図示を含めて概要の記載に留めることとする。また、それら一連の装置類を制御する制御装置についても、その構成に関して格別の制約はなく、要は、所望通りに装置類を制御することができる制御装置であれば足りるので、図面を見易く簡略化する便宜上、制御系統図（制御回路類）を含めて図示を省略することとし、所要の制御機能についてのみ言及する。更に、既に説明済の実施例とは別の実施例を説明するに際し、既に説明済の実施例と同じ構成で成る装置類、機構類、部材類等については、同一の符号を付して、重複する説明を可及的に省略する。   Hereinafter, the present invention will be described in further detail together with an example of the embodiment illustrated in the drawings, but there are no particular restrictions on the configuration of the log centering device, the log supply device, the veneer lace, etc. that can be used in the implementation of the present invention. In addition, since existing devices that are already widely used can be diverted, the configuration of the series of devices will be described only in the outline including the illustration. In addition, there is no particular restriction on the configuration of the control device that controls the series of devices. In short, a control device that can control the devices as desired is sufficient, and the drawing is easy to see and simplify. For convenience, the illustration including the control system diagram (control circuits) will be omitted, and only the required control functions will be mentioned. Furthermore, when describing an embodiment different from the already described embodiment, devices, mechanisms, members, etc. having the same configuration as the already described embodiment are given the same reference numerals, A duplicate description will be omitted as much as possible.

図１は、本発明の実施に用い得る一連の装置類の正面説明図であり、図２は、図１に例示した一連の装置類の側面概略説明図である。図中、１は、原木芯出し装置Ａの一部を構成する左右一対の原木支持部材であって、常態に於ては、後述する仮芯用のスピンドル３・３ａの中心軸ｊを通る垂線を前後方向の中心とする、適宜の待機位置に於て待機し、図示しない原木搬入機構を介して間歇的に供給される原木Ｇを、両端部近辺に於て支持すると共に、図示しない制御装置の制御に基づく流体シリンダ等から成る昇降作動部材（図示省略）の作動を得て、好ましくは左右各別に昇降作動し、支持した原木Ｇを適宜位置まで上昇させる。   FIG. 1 is a front explanatory view of a series of devices that can be used in the practice of the present invention, and FIG. 2 is a schematic side view of the series of devices illustrated in FIG. In the figure, reference numeral 1 denotes a pair of left and right log support members constituting a part of the log centering device A, and in a normal state, a perpendicular line passing through a central axis j of a temporary core spindle 3 or 3a described later. And a control device (not shown) that supports the log G that is supplied intermittently via a log loading mechanism (not shown) in the vicinity of both ends. The lifting / lowering operation member (not shown) composed of a fluid cylinder or the like based on the above control is obtained.

２・２ａは、原木芯出し装置Ａの一部を構成する投光・受光式の光電管等から成る原木検知器であって、前記原木支持部材１によって支持されて上昇する原木Ｇの両端部近辺に於ける上辺の到来信号と下辺の通過信号とを、図示しない制御装置に発信する。而して、制御装置は、到来信号が発信されてから通過信号が発信されるまでの所要時間と、前記原木支持部材１の上昇速度とから、原木Ｇの両端部近辺の仮定直径を概算すると共に、該仮定直径から仮想される原木Ｇの仮軸芯Ｍを、後述する仮芯用のスピンドル３・３ａの中心軸ｊと同じ高さに合わせるべく、好ましくは左右各別に上限位置を定めて、前記原木支持部材１の上昇を停止させる。   2 and 2a are log detectors composed of a light projecting / receiving phototube or the like that constitute a part of the log centering device A, in the vicinity of both ends of the log G that is supported and raised by the log support member 1 The incoming signal on the upper side and the passing signal on the lower side are transmitted to a control device (not shown). Thus, the control device approximates the assumed diameter in the vicinity of both ends of the log G from the time required from when the incoming signal is transmitted until the passing signal is transmitted and the rising speed of the log support member 1. In addition, an upper limit position is preferably determined for each of the left and right sides so that the temporary axis M of the raw wood G hypothesized from the assumed diameter is set to the same height as the central axis j of the spindles 3 and 3a for temporary cores to be described later. The raising of the log support member 1 is stopped.

３・３ａは、原木芯出し装置Ａの一部を構成する左右一対の仮芯用のスピンドルであって、所定の半径ｒを有するベニヤレースＣのスピンドル２２に比べて太さを一段と細してあり、各々が左右一対の基台４に固定された軸受箱５・５ａを介して回転可能に枢支されると共に、いずれか片側（図示例は左側）のスピンドル３ａには、歯付回転部材９の嵌装と図示矢印方向への摺動とを許容するスプライン３ｂが形成されており、歯付ベルト等から成る無端帯８と前記歯付回転部材９とを介して、回転検出器１０ａを具備した減速機付電動機等から成る駆動源１０に接続されている。また更に、当該仮芯用のスピンドル３・３ａは、遊転継手６を介して、流体シリンダ等から成る進退作動部材７にも接続されている。而して、制御装置は、概算した直径から仮定される原木Ｇの仮軸芯Ｍが、仮芯用のスピンドル３・３ａの中心軸ｊと同じ高さに至ったら、進退部材７を介して、各スピンドル３・３ａを原木Ｇの端面に向けて進出させることにより、原木Ｇを挟持させると共に、原木Ｇが両スピンドル３・３によって挟持された後は、前記原木支持部材１を当初の待機位置へ下降させ、更に、駆動源１０を介して、原木Ｇを少なくとも一回転させる。   Reference numerals 3.3a and 3a are a pair of left and right temporary core spindles constituting a part of the log centering device A, which is thinner than the spindle 22 of the veneer race C having a predetermined radius r. Each of them is rotatably supported via bearing boxes 5 and 5a fixed to a pair of left and right bases 4, and either one (left side in the illustrated example) spindle 3a has a toothed rotating member. 9 is formed, and a spline 3b that allows sliding in the direction of the arrow shown in the figure is formed. The rotation detector 10a is connected to the endless belt 8 made of a toothed belt and the like and the toothed rotating member 9. It is connected to a drive source 10 composed of a motor equipped with a reduction gear. Furthermore, the temporary spindles 3 and 3a are also connected to an advancing / retracting operation member 7 made of a fluid cylinder or the like via an idler joint 6. Thus, when the temporary shaft core M of the log G assumed from the estimated diameter reaches the same height as the central axis j of the temporary core spindles 3 and 3a, the control device passes the advancing / retracting member 7 through. The spindles 3 and 3a are advanced toward the end faces of the logs G, so that the logs G are clamped. After the logs G are clamped by the spindles 3 and 3, the log support member 1 is kept in the initial standby state. The position is lowered to the position, and the log G is rotated at least once through the drive source 10.

１１は、原木芯出し装置Ａの一部を構成する反射型光電管式の距離計等から成る外形検知器であって、原木Ｇの両端部近辺と中央部とに対向する都合三箇所に配設されており、各箇所に於ける原木Ｇの外周に対する距離（間隔）を計測して、図示しない制御装置に計測値を発信する。而して、制御装置は、前記駆動源１０が具備する回転検出器１０ａから発信される回転検出信号と、各外形検知器１１から発信される計測値とから、各箇所に於ける原木Ｇの外郭形状を概算すると共に、各外郭形状を立体的に合成することによって、原木Ｇの立体形状を概算し、該立体形状に適応する所望の軸芯を、所要の回転芯（Ｎ）として定め、更に、後に改めて詳述する如く、所要の回転芯（Ｎ）の延在方向が、後述する原木供給装置Ｂの原木把持機構ｂ１に於ける把持部材１２の伸縮方向と平行状を成す状態に至るまで、原木Ｇを更に所要角度だけ回転させる。   11 is an external shape detector composed of a reflective photoelectric tube type distance meter, etc., which constitutes a part of the log centering device A, and is arranged at three convenient positions facing the vicinity and the center of both ends of the log G. The distance (interval) with respect to the outer periphery of the log G at each location is measured, and the measured value is transmitted to a control device (not shown). Thus, the control device detects the rotation of the log G at each location from the rotation detection signal transmitted from the rotation detector 10a included in the drive source 10 and the measured value transmitted from each outer shape detector 11. Estimating the outline shape and synthesizing each outline shape three-dimensionally to estimate the three-dimensional shape of the log G, and determining a desired axis core adapted to the three-dimensional shape as a required rotational core (N), Further, as will be described in detail later, the required extending direction of the rotary core (N) reaches a state parallel to the expansion / contraction direction of the gripping member 12 in the log holding mechanism b1 of the log supply device B described later. Until the log G is further rotated by the required angle.

１２は、原木供給装置Ｂの原木把持機構ｂ１の一部を構成する左右一対の把持部材であって、各々が後述する左右一対の保持部材１５によって垂直方向へ伸縮可能に保持されると共に、基端部には、回転検出器１４ａを具備したサーボモータ等から成る駆動源１４によって回転する螺子１３が、また、先端部には、原木Ｇの端面を把持する適数個の楔状の把持爪１２ａが夫々具備されている。而して、制御装置は、原木Ｇの端面を把持するに際し、後に改めて詳述する如く、駆動源１４を介して螺子１３を回転させることにより、把持爪１２ａの位置が、原木Ｇの端面の好適位置に至るように、各把持部材１２を適当に伸縮（保持部材に対する相対的な伸縮を指す）させる。   Reference numeral 12 denotes a pair of left and right grip members constituting a part of the log gripping mechanism b1 of the log supply device B, each of which is held by a pair of left and right holding members 15 described later so as to be able to expand and contract in the vertical direction. At the end is a screw 13 that is rotated by a drive source 14 comprising a servo motor equipped with a rotation detector 14a, and at the tip is an appropriate number of wedge-shaped gripping claws 12a that grip the end face of the log G. Are provided. Thus, when gripping the end face of the log G, the control device rotates the screw 13 via the drive source 14 so that the position of the grip claw 12a is adjusted to the end face of the log G as described in detail later. Each gripping member 12 is appropriately expanded and contracted (refers to relative expansion and contraction with respect to the holding member) so as to reach a suitable position.

１５は、原木供給装置Ｂの原木把持機構ｂ１の一部を構成する左右一対の保持部材であって、各々が後述する移動梁１７に付設されたガイドレール１７ａに沿って移動可能に嵌装されると共に、図示しない制御装置の制御に基づく流体シリンダ等から成る挟持作動部材１６の作動を得て、適時、相互に接近・離隔せしめられる。而して、制御装置は、後に改めて詳述する如く、各把持部材１２を適当に伸縮させた後に、挟持作動部材１６を介して、各保持部材１５を相互に接近させることによって、各把持部材１２による原木Ｇの把持を実施する。   Reference numeral 15 denotes a pair of left and right holding members that constitute a part of the log holding mechanism b1 of the log supply apparatus B, and each is fitted so as to be movable along a guide rail 17a attached to a moving beam 17 described later. At the same time, the operation of the clamping operation member 16 composed of a fluid cylinder or the like based on the control of a control device (not shown) is obtained, and can be approached and separated from each other in a timely manner. Thus, as will be described in detail later, the control device appropriately expands and contracts each gripping member 12 and then brings the holding members 15 close to each other via the clamping operation member 16 to thereby each gripping member. 12 to grasp the log G.

１７は、原木供給装置Ｂの原木移動機構ｂ２の一部を構成する移動梁であって、原木供給装置Ｂの原木把持機構ｂ１を案内するガイドレール１７ａを具備すると共に、前記基台４とベニヤレースＣとの間に架設された左右一対の支持枠１８によって、前後方向へ移動可能に支持されている。   Reference numeral 17 denotes a moving beam constituting a part of the log moving mechanism b2 of the log supplying apparatus B, which includes a guide rail 17a for guiding the log holding mechanism b1 of the log supplying apparatus B, and the base 4 and the veneer. A pair of left and right support frames 18 installed between the race C and the race C are supported so as to be movable in the front-rear direction.

１９は、原木供給装置Ｂの原木移動機構ｂ２の一部を構成する左右一対の移動螺子であって、軸受箱２０によって枢支されると共に、前記移動梁１７に螺合されており、図示しない制御装置の制御に基づき、回転検出器２１ａを具備したサーボモータ等から成る駆動源２１の作動を得て、前記移動梁１７を前後方向へ移動させる。而して、制御装置は、適宜の待機位置、例えば原木芯出し装置ＡとベニヤレースＣとの中間位置に、移動梁１７を待機させておくと共に、後に改めて詳述する如く、所要時に、駆動源２１を作動させて、移動梁１７を、前記仮芯用のスピンドル３・３ａの上方近辺へ移動させ、更に、挟持作動部材１６を介して、各保持部材１５を相互に接近させることによって、各把持部材１２による原木Ｇの把持を実施した後に、駆動源２１を適宜作動させて、移動梁１７を連続的に（或は間歇的に）移動させ、原木芯出し装置ＡからベニヤレースＣへ直ちに（或はそれらの中間位置等に於て適当な待機期間を設けて）原木Ｇを移動させる。   Reference numeral 19 denotes a pair of left and right moving screws that constitute a part of the log moving mechanism b2 of the log supplying device B. The left and right moving screws 19 are pivotally supported by the bearing box 20 and screwed to the moving beam 17, not shown. Based on the control of the control device, the operation of the drive source 21 including a servo motor equipped with the rotation detector 21a is obtained, and the moving beam 17 is moved in the front-rear direction. Thus, the control device makes the moving beam 17 stand by at an appropriate standby position, for example, an intermediate position between the log centering device A and the veneer race C, and drives it when necessary as described in detail later. By actuating the source 21, the moving beam 17 is moved to the upper vicinity of the temporary spindles 3 and 3a, and the holding members 15 are moved closer to each other via the clamping operation member 16, After gripping the log G by each gripping member 12, the drive source 21 is operated as appropriate to move the moving beam 17 continuously (or intermittently) from the log centering device A to the veneer race C. Immediately (or with an appropriate waiting period at an intermediate position between them), the log G is moved.

本発明に係る原木の供給方法は、例えば斯様な構成で成る一連の装置類を用いて実施することが可能であって、以下、具体的な供給態様について、図３〜図９に例示した供給態様に関係する説明図を引用しながら詳述すると、原木芯出し装置Ａに於ては、図示しない原木搬入機構を介して、原木支持部材１に原木Ｇが搬入されると、図３に例示する如く、原木支持部材１を上昇させる過程に於て、図示しない制御装置は、原木検知器２・２ａから到来信号が発信されてから通過信号が発信されるまでの所要時間と、前記原木支持部材１の上昇速度とから、原木Ｇの右側端部近辺の仮定直径Ｄ１と左側端部近辺の仮定直径Ｄ２を概算すると共に、仮芯用のスピンドル３・３ａの中心軸ｊを通る垂線上であって、且つ、各仮定直径Ｄ１・Ｄ２の半径Ｄ１／２・Ｄ２／２に相当する位置に位置する点ｇ１・ｇ２を結ぶ線を、仮軸芯（Ｍ）として定め、原木Ｇの右側に位置する原木支持部材１については、原木検知器２・２ａと仮芯用のスピンドル３の中心軸ｊとの間隔Ｓから、前記半径Ｄ１／２を差し引いた距離ｓ１（＝Ｓ−Ｄ１／２）だけ、また、原木Ｇの左側に位置する原木支持部材１については、原木検知器２・２ａと仮芯用のスピンドル３ａの中心軸ｊとの間隔Ｓから、前記半径Ｄ２／２を差し引いた距離ｓ２（＝Ｓ−Ｄ２／２）だけ、通過信号が発信された以降も、夫々継続的に上昇させることによって、前記各点ｇ１・ｇ２の高さを（実質的には、仮軸芯Ｍの高さを）、前記スピンドル３・３ａの中心軸ｊの高さと一致させる（図１参照）。   The method for supplying raw wood according to the present invention can be implemented using, for example, a series of apparatuses having such a configuration, and specific supply modes are illustrated in FIGS. 3 to 9 below. In detail, referring to the explanatory diagram related to the supply mode, in the log centering device A, when the log G is loaded into the log support member 1 through a log loading mechanism (not shown), FIG. As illustrated, in the process of raising the log support member 1, the control device (not shown) takes the time required from the arrival of the arrival signal to the transmission of the passing signal from the log detectors 2 and 2 a, and the log. Based on the ascending speed of the support member 1, an estimated diameter D1 near the right end of the log G and an assumed diameter D2 near the left end are approximated, and on a perpendicular line passing through the central axis j of the spindles 3 and 3a for temporary cores. And half of each assumed diameter D1 and D2. A line connecting points g1 and g2 located at positions corresponding to D1 / 2 and D2 / 2 is defined as a temporary axis (M), and a log detector 2 is provided for the log support member 1 positioned on the right side of the log G. A log support located on the left side of the log G by a distance s1 (= S−D1 / 2) obtained by subtracting the radius D1 / 2 from the distance S between the central axis j of the spindle 3 for temporary core 3a and 2a. For the member 1, the passing signal is a distance s2 (= S−D2 / 2) obtained by subtracting the radius D2 / 2 from the distance S between the log detectors 2 and 2a and the center axis j of the spindle 3a for temporary core. Is continuously raised, the height of each of the points g1 and g2 (substantially the height of the temporary axis M) is set to the central axis of the spindle 3 and 3a. Match with the height of j (see FIG. 1).

次いで、図示しない制御装置は、進退部材７を介して、各スピンドル３・３ａを原木Ｇの端面に向けて進出させることにより、原木Ｇを挟持させると共に、前記原木支持部材１を当初の待機位置へ下降させ、更に、駆動源１０を介して、原木Ｇを少なくとも一回転させるが、その過程に於て、図４・図５に例示する如く、任意角度θｔ毎に、外形検知器１１と仮芯用のスピンドル３・３ａの中心軸ｊとの間隔Ｒから、外形検知器１１と原木Ｇの外周との間隔Ｒ１を差し引くことによって、原木Ｇの両端部近辺と中央部との都合三箇所に於ける仮軸芯Ｍに対応する外郭寸法Ｒｘ（＝Ｒ−Ｒ１）を次々と計測し、更に、該計測した外郭寸法Ｒｘに基づいて、仮軸芯Ｍを中心とする原木Ｇの立体形状Ｐ１・Ｐ２・Ｐ３を概算し、併せて、各立体形状Ｐ１・Ｐ２・Ｐ３に適応する軸芯、例えば帯状のベニヤ単板を最も大量に取得せんと図る場合であれば、全ての立体形状Ｐ１・Ｐ２・Ｐ３に適合する最大内接円柱（図示省略）の中心軸を、所望の回転芯Ｎとして定める。   Next, the control device (not shown) moves the spindles 3 and 3a toward the end face of the log G through the advance / retreat member 7, thereby holding the log G and holding the log support member 1 at the initial standby position. Further, the log G is rotated at least once through the drive source 10, and in the process, as shown in FIGS. 4 and 5, the outer shape detector 11 and the temporary detector 11 are temporarily set at every arbitrary angle θt. By subtracting the distance R1 between the outer shape detector 11 and the outer periphery of the log G from the distance R with respect to the central axis j of the spindle 3 or 3a for the core, there are three convenient locations near both ends and the center of the log G. The contour dimension Rx (= R−R1) corresponding to the temporary axis M is measured one after another, and based on the measured outer dimension Rx, the solid shape P1 of the log G centered on the temporary axis M is measured.・ Approximate P2 and P3 and combine each solid shape If you want to acquire the largest quantity of shaft cores suitable for 1, P2, P3, for example strip-like veneer veneer, the maximum inscribed cylinder (not shown) that fits all three-dimensional shapes P1, P2, P3 Is defined as a desired rotation center N.

而して、図示しない制御装置は、例えば図６（イ）に例示する如く、普通の原木Ｇ１について、仮軸芯Ｍ１を中心に一回転させ、原木右側端面に於ける末端部をｎ１、原木左側端面に於ける末端部をｎ２とする回転芯Ｎ１を定めたら、図６（ロ）に例示する如く、前記回転芯Ｎ１が、先記原木把持機構ｂ１の一部を構成する把持部材１２の伸縮方向（垂直方向）に対して平行状を成す状態（原木の移動方向と直交方向に向く状態）に至るまで、更に、駆動源１０を介して、原木Ｇ１を暫時回転させた後に、回転を停止させる。   Thus, the control device (not shown), for example, as shown in FIG. 6 (a), rotates the ordinary log G1 around the temporary axis M1 once, and sets the end part on the right end face of the log to n1, log. When the rotary core N1 whose end portion on the left end surface is n2 is determined, as illustrated in FIG. 6 (B), the rotary core N1 is formed of the gripping member 12 constituting a part of the log holding mechanism b1. Further, after rotating the log G1 for a while via the drive source 10 until it reaches a state parallel to the expansion / contraction direction (vertical direction) (a state orthogonal to the moving direction of the log), the rotation is performed. Stop.

尚、図示しない制御装置は、原木の回転芯を定めたら、速やかに、駆動源を介して、保持部材共々移動梁を、適宜の待機位置から、所望の把持実施位置へ移動させるが、具体的な移動態様については、大別して二通りの態様を採り得るので、先に、原木の回転芯に対応する位置に移動させる態様から説明する。   Note that the control device (not shown) quickly moves the holding beam together with the holding member from the appropriate standby position to the desired gripping execution position via the drive source after determining the rotation center of the raw wood. Since the various movement modes can be broadly divided into two modes, first, the mode of moving to a position corresponding to the rotation core of the raw wood will be described.

而して、図示しない制御装置は、原木Ｇ１の回転芯Ｎ１を定めたら、速やかに、駆動源２１を介して、保持部材１５共々移動梁１７を、適宜の待機位置から、所望の把持実施位置、例えば図６（ロ）に例示する如く、原木Ｇ１の回転芯Ｎ１の真上（保持部材１５が保持する把持部材１２の真ん中が、回転芯Ｎ１の延長線上に位置する位置）に移動させると共に、図７（イ）及び（ロ）に例示する如く、把持部材１２の下端部と前記回転芯Ｎ１の原木右側端面に於ける末端部ｎ１との距離、及び把持部材１２の下端部と回転芯Ｎ１の原木左側端面に於ける末端部ｎ２との距離が、夫々ベニヤレースＣのスピンドル２２の半径ｒに最少安全保障間隔α（通常は、数ｍｍ、例えば３ｍｍ程度）を加算して算出される、所定距離Ｚ（＝ｒ＋α）となる状態に至るまで、駆動源１４を介して、左右の把持部材１２を個別に変位（通常は、縮小状態からの伸長）させ、更に、前述する如く、原木Ｇ１の回転芯Ｎ１が、把持部材１２の伸縮方向に対して平行状を成し、且つ、原木Ｇ１の回転が停止した状態に於て、挟持作動部材１６を介して、各保持部材１５を相互に接近させることにより、原木Ｇ１の把持を実施すると共に、進退部材７を介して、仮芯用のスピンドル３・３ａを原木Ｇ１の端面から離隔させることにより、原木Ｇ１の挟持を開放する。   Thus, when the control device (not shown) determines the rotation core N1 of the log G1, the holding beam 15 and the moving beam 17 are quickly moved from the appropriate standby position to the desired gripping execution position via the drive source 21. For example, as illustrated in FIG. 6B, while moving to the position just above the rotary core N1 of the log G1 (the position where the middle of the gripping member 12 held by the holding member 15 is located on the extension line of the rotary core N1). 7A and 7B, the distance between the lower end portion of the gripping member 12 and the end portion n1 on the right end surface of the raw wood of the rotary core N1, and the lower end portion of the gripping member 12 and the rotary core. The distance from the end portion n2 on the left end surface of the log of N1 is calculated by adding the minimum security interval α (usually several mm, for example, about 3 mm) to the radius r of the spindle 22 of the veneer race C, respectively. , A state that becomes a predetermined distance Z (= r + α) The left and right gripping members 12 are individually displaced (usually extended from the contracted state) via the drive source 14 until the state reaches the state, and as described above, the rotary core N1 of the log G1 is moved by the gripping member 12. The holding member 15 is brought close to each other via the clamping operation member 16 in a state parallel to the expansion / contraction direction and the rotation of the raw wood G1 is stopped. In addition, the holding of the raw wood G1 is released by separating the temporary spindles 3 and 3a from the end face of the raw wood G1 through the advancing / retreating member 7.

然る後に、図示しない制御装置は、図８に例示する如く、駆動源２１を介して、保持部材１５共々移動梁１７を、ベニヤレースＣのスピンドル２２に対応する供給位置、即ち、把持部材１２の真ん中が、スピンドル２２の中心軸ｋを通る垂線上に位置する位置へ連続的（又は間歇的）に移動させるが、把持実施位置から供給位置に至る所要移動距離Ｌｘとしては、仮芯用のスピンドル３・３ａの中心軸ｊとスピンドル２２の中心軸ｋとの間隔をＬ、仮芯用のスピンドル３・３ａの中心軸ｊと回転芯Ｎ１との間隔をΔｘとすると、次の数式、所要移動距離Ｌｘ＝Ｌ−Δｘによって算出することができる。   Thereafter, as illustrated in FIG. 8, the control device (not shown) moves the holding beam 15 together with the holding beam 15 via the driving source 21 to the supply position corresponding to the spindle 22 of the veneer race C, that is, the gripping member 12. Is moved continuously (or intermittently) to a position located on a perpendicular line passing through the central axis k of the spindle 22, but the required moving distance Lx from the gripping execution position to the supply position is as follows. Assuming that the distance between the central axis j of the spindles 3 and 3a and the central axis k of the spindle 22 is L, and the distance between the central axis j of the spindles 3 and 3a for the temporary core and the rotary core N1 is Δx, It can be calculated by the movement distance Lx = L−Δx.

また更に、図示しない制御装置は、図８に例示する如く、保持部材１５共々移動梁１７を、前記供給位置へ移動させる過程に於て、原木Ｇ１の右側の把持部材１２については、回転芯Ｎ１の右側の末端部ｎ１とスピンドル２２の中心軸ｋとの高低差ｙ１だけ、駆動源１４を介して、保持部材１５に対する突出長さを伸長させ、また、原木Ｇ１の左側の把持部材１２については、回転芯Ｎ１の左側の末端部ｎ２とスピンドル２２の中心軸ｋとの高低差ｙ２だけ、駆動源１４を介して、保持部材１５に対する突出長さを縮小させることにより、最終的に、回転芯Ｎ１の高さをスピンドル２２の中心軸ｋの高さに一致させる。   Further, as illustrated in FIG. 8, the control device (not shown) moves the holding member 15 together with the moving beam 17 to the supply position. The protrusion length with respect to the holding member 15 is extended through the driving source 14 by the height difference y1 between the right end portion n1 of the spindle 22 and the central axis k of the spindle 22, and the left holding member 12 of the log G1 The projecting length with respect to the holding member 15 is reduced by the height difference y2 between the left end portion n2 of the rotating core N1 and the central axis k of the spindle 22 through the drive source 14, and finally the rotating core The height of N1 is made to coincide with the height of the central axis k of the spindle 22.

述上の如き供給態様によって、大多数の普通の原木については、各原木の両端面に於ける所望の回転芯の末端部から、前記所定距離だけ離れた部位に把持爪を介入させて把持するので、把持部材の先端部とベニヤレースのスピンドルとの衝突を適確に回避しつつ、原木の自重に起因する慣性力が前記部位に作用する際の、力のモーメントの多寡に拘わる位置ベクトルを、従来の供給方法に比べて縮小させて、前記把持爪が介入する部位に作用する応力を、従来の供給方法に比べて低減させることができ、当初の原木の把持姿勢がそのまま維持し易いので、従来よりも精度良く原木を供給することが可能となる。   According to the supply mode as described above, a large number of ordinary logs are gripped by interposing a gripping claw at a predetermined distance from the end of a desired rotating core on both ends of each log. Therefore, a position vector associated with a large number of moments of force when the inertial force due to the weight of the raw wood acts on the part while appropriately avoiding a collision between the tip of the gripping member and the spindle of the veneer race. Compared with the conventional feeding method, the stress acting on the part where the gripping claws intervene can be reduced compared with the conventional feeding method, and the initial gripping posture of the original wood can be easily maintained. Therefore, it is possible to supply the logs with higher accuracy than in the past.

また一方、図示しない制御装置は、例えば図９（イ）に例示する如く、外形が比較的不定形な原木Ｇ２に於て、末端部ｎ３・ｎ４を有する回転芯Ｎ２を定めた場合に、該回転芯Ｎ２の少なくともいずれか片側の末端部、例えば原木左側端面に於ける末端部ｎ４に対して、把持部材１２の先端部を所定距離Ｚ（＝ｒ＋α）隔てた位置に変位させんとすると、把持部材１２の先端部と仮芯用のスピンドル３ａとが衝突する虞が生じる場合には、図９（ロ）に例示する如く、特例的に、少なくとも衝突する虞が生じた側の把持部材１２について、仮芯用のスピンドル３との衝突が、最少安全保障間隔α（ベニヤレースのスピンドルに対する最少安全保障間隔αと同等で良い）を隔てて回避し得るような、前記所定距離Ｚよりも一段と長い安全距離Ｚｅ（＝ｒ＋β、但し、最少安全保障間隔α＜衝突回避間隔β）を隔てた位置に、先端部を位置させるべく、駆動源１４を介して、該当する把持部材１２の伸縮量を調整してから、挟持作動部材１６を介して、各保持部材１５を相互に接近させることにより、原木Ｇ２を把持し、次いで、前記図８の例に準じて、駆動源２１を介して、保持部材１５共々移動梁１７を、連続的（又は間歇的）に移動させる過程に於て、駆動源１４を介して、把持部材１２の突出長さを調整することにより、原木Ｇ２の回転芯Ｎ２の高さを、左右格別に調整し、原木Ｇ２を、ベニヤレースＣのスピンドル２２の位置へ供給する。   On the other hand, a control device (not shown), for example, as shown in FIG. 9 (a), when the rotary core N2 having the end portions n3 and n4 is determined in the raw wood G2 having a relatively irregular outer shape, When the distal end of the gripping member 12 is displaced to a position separated by a predetermined distance Z (= r + α) with respect to at least one end of the rotary core N2, for example, the end n4 on the left end surface of the log, When there is a possibility that the tip of the gripping member 12 collides with the spindle 3a for temporary core, as shown in FIG. 9B, as a special example, at least the gripping member 12 on the side where there is a risk of collision. The collision with the spindle 3 for temporary lead can be avoided further than the predetermined distance Z such that the minimum security interval α (which may be equal to the minimum security interval α with respect to the veneer spindle) can be avoided. Long safety distance Ze = R + β, provided that the amount of expansion / contraction of the corresponding gripping member 12 is adjusted via the drive source 14 to position the tip at a position separated by the minimum security interval α <collision avoidance interval β), By holding the holding members 15 close to each other via the clamping operation member 16, the raw wood G <b> 2 is gripped, and then in accordance with the example of FIG. In the process of moving 17 continuously (or intermittently), the height of the rotary core N2 of the log G2 is adjusted by adjusting the protruding length of the gripping member 12 via the drive source 14. The raw wood G2 is supplied to the position of the spindle 22 of the veneer race C with special adjustment.

尚、把持部材の先端部と仮芯用のスピンドルとが衝突する虞が生じるか否かについて、或は衝突する虞が生じた場合に必要となる前記安全距離Ｚｅ（実施的には、衝突回避間隔β）については、各原木毎に於ける所望の回転芯（及び両末端部）の三次元的な位置が定まれば、図示しない制御装置の電子計算機機能によって瞬時に算出することができ、仮芯用のスピンドルとの衝突が、最少安全保障間隔（α）を隔てて回避し得るような、安全距離Ｚｅを算出するものであるから、概して、従来の供給方法よりも、原木の重心の位置により近い部位を把持することができる。   It should be noted that the safety distance Ze that is necessary when there is a risk of collision between the tip of the gripping member and the spindle for the temporary core, or when there is a risk of collision (in practice, avoidance of collision). The interval β) can be calculated instantaneously by an electronic computer function of a control device (not shown) if the desired three-dimensional position of the rotation core (and both ends) in each log is determined. Since the safety distance Ze is calculated so that a collision with the spindle for the temporary lead can be avoided with a minimum security interval (α), the center of gravity of the raw wood is generally larger than that of the conventional supply method. A part closer to the position can be grasped.

而して、この場合には、先記所定の部位よりも一段と外側の部位に、把持爪を介入させて把持するので、従来と同様に、供給姿勢の精度が劣化する虞があるが、従来に比べて供給姿勢の精度が劣化するわけではなく、最悪でも従来と同等程度に劣化する虞が生じるにすぎず、而も、斯様な特例的な処置は、あくまで少数の例外的な原木に限られるから、総合的には、格別問題とはならない。   Thus, in this case, since the gripping claw is interposed and gripped at a part further outside the predetermined part, the accuracy of the supply posture may be deteriorated as in the conventional case. However, the accuracy of the supply posture does not deteriorate compared to the conventional case, and at the worst, there is a risk that it will deteriorate to the same extent as in the past, and such a special treatment is limited to a few exceptional logs. Because it is limited, it is not a special issue overall.

因に、前記実施例に於ては、保持部材共々移動梁を、適宜の待機位置から、原木の回転芯に対応する位置（回転芯の真上）に移動させる態様としたものであり、概して、原木の重心に比較的近い部位を把持することになるので、供給姿勢の精度の維持には有効であるが、移動梁の移動態様としては、斯様な形態に限定するものではなく、別の態様として、図１０に例示する如く、保持部材１５共々移動梁１７を、仮芯用のスピンドル３・３ａの真上（保持部材１５が保持する把持部材１２の真ん中が、仮芯用のスピンドル３・３ａの中心軸ｊを通る垂線上に位置する位置）まで移動させる態様を採ることも可能であり、図からも明らかな如く、斯様な態様を採る場合であっても、保持部材１５共々移動梁１７を移動させる際の、所要移動距離Ｌｘとしては、前記実施例の場合と同じ数式、所要移動距離Ｌｘ＝Ｌ−Δｘによって算出することができ、実用的には格別支障なく、把持した原木をベニヤレースに供給することができる。   Incidentally, in the above-described embodiment, the holding member and the moving beam are moved from an appropriate standby position to a position corresponding to the rotation core of the raw wood (directly above the rotation core). Since it grips a portion that is relatively close to the center of gravity of the raw wood, it is effective for maintaining the accuracy of the supply posture, but the movement mode of the moving beam is not limited to such a form. As shown in FIG. 10, the holding member 15 and the moving beam 17 are moved directly above the temporary core spindles 3 and 3a (the middle of the gripping member 12 held by the holding member 15 is the temporary core spindle). It is also possible to adopt a mode of moving to a position located on a vertical line passing through the central axis j of 3 · 3a). As is apparent from the drawing, even if such a mode is adopted, the holding member 15 Required travel distance when moving the moving beam 17 together The x, same formula as in the embodiment, it is possible to calculate the required movement distance Lx = L-Δx, practically the particular without any trouble, the grasped timber may be supplied to the veneer lathe.

而して、仮芯用のスピンドルの太さを、ベニヤレースのスピンドルの太さに比べて一段と細くする具体的数値については、ベニヤレースのスピンドルの太さの具体的数値のみならず、仮芯用のスピンドルに最低限度必要な剛性、処理対象となる全ての原木の性状、回転芯の定め方等々の諸条件に対応させて、変えても差支えないので、一概には定められないが、ベニヤレースのスピンドルに対して、直径で１０ｍｍ〜４０ｍｍ程度細くするのが一応の目安であり、普遍的には、仮芯用のスピンドルに最低限度必要な剛性に基づいて、直径自体の具体的数値を定めても、ベニヤレースのスピンドルの太さに比べて一段と細くなるのは当然であり、実用的には格別支障ない。 Thus, the specific value for making the thickness of the spindle for the temporary core thinner than the thickness of the spindle for the veneer lace is not limited to the specific value for the thickness of the spindle for the veneer lace. minimum necessary rigidity to the spindle of the use, the properties of all the timber to be processed, corresponding to the various conditions of the so method of determining the rotation center, since permissible not be changed, but categorically is not defined, veneer The standard is to make the diameter of the race spindle 10mm to 40mm thinner, and universally, based on the minimum required rigidity of the spindle for the temporary lead, the specific value of the diameter itself is determined . Even if it is determined, it is natural that it becomes thinner than the thickness of the veneer lace spindle.

尚、本発明に係る原木の供給方法の実施に用い得る一連の装置類の構成としては、前記各実施例の構成に限るものではなく、各装置・各機構について、以下に述べる如く、種々の設計変更例が挙げられる。   The configuration of a series of devices that can be used to implement the method for supplying raw wood according to the present invention is not limited to the configuration of each of the above embodiments, and various devices and mechanisms are described as follows. Examples of design changes are given.

前記実施例の原木芯出し方法は、原木の比較的少数箇所（実施例は３箇所）の外郭寸法を計測することによって、仮軸芯を中心とする立体形状を概算する態様であるが、その外にも、図示は省略したが、例えば「原木の３次元形状測定装置および方法」（特開２０１０−１１２８１１号公報）に開示される如く、仮軸芯に対して平行状に、且つ、カメラを中央として対称的に原木の外周面へ照射した二条の線状光線を、原木が適宜角度づつ回転する毎に、カメラによって撮影すると共に、該撮影した画像に適宜の画像処理、即ち、原木外周部上に於ける前記二条の線状光線の検出位置と仮軸芯の位置とカメラの位置との相対的な位置関係から、仮軸芯から所望の原木外周部までの半径寸法を算出する画像処理を施して、仮軸芯を中心とする立体形状を概算する態様によれば、一段と詳細な原木の立体形状を算定して、所望の回転芯を定めることが可能となる。   The raw wood centering method of the above embodiment is an aspect in which the three-dimensional shape centered on the temporary shaft core is approximated by measuring the outline dimensions of a relatively small number of places (three in the embodiment) of the raw wood. Although not shown, for example, as disclosed in “3D shape measuring apparatus and method for raw wood” (Japanese Patent Application Laid-Open No. 2010-112811), the camera is parallel to the temporary axis and the camera. The two linear light rays that are symmetrically radiated to the outer peripheral surface of the log are photographed by the camera each time the log is rotated by an appropriate angle, and appropriate image processing is performed on the captured image, that is, the outer periphery of the log An image for calculating the radial dimension from the temporary axis to the desired outer circumference of the log from the relative positional relationship between the detection position of the two linear rays on the part, the position of the temporary axis, and the position of the camera After processing, stand up around the temporary axis According to an aspect to estimate the shape, and calculates the three-dimensional shape of the more detailed timber, it is possible to determine the desired rotational core.

また、図示は省略したが、先述の如く、原木の両端面に照射した多数の環状光線の中心と原木の心材部分の中心とを一致させて、心材の部分形状に適応する軸芯を求め、且つ、別途に、先記実施例に倣って、仮芯用のスピンドルで挟持した原木の複数箇所の外郭寸法を、外形検知器で検知して、原木の立体形状を概算するか、或は前の段落で説明した３次元形状測定装置（３次元形状測定方法）を用いて、原木の立体形状を概算し、該立体形状と前記心材部分との複合条件に適応する軸芯を、回転芯として定め、該回転芯が、把持部材の伸縮方向に対して平行状を成す状態に至るまで、原木を暫時回転させた後に、回転を停止させ、次いで、左右の把持部材を個別に変位させてから、互に接近させる順序を以って、原木を把持し、ベニヤレースへ供給する供給方法を採ることも可能である。   Although not shown in the figure, as described above, the center of the many circular rays irradiated to both end faces of the raw wood and the center of the heartwood portion of the raw wood are matched to obtain an axis that adapts to the shape of the heartwood, Separately, according to the previous embodiment, the outline size of the raw wood sandwiched by the spindle for the temporary core is detected by the external shape detector, and the three-dimensional shape of the raw wood is estimated, or the front Using the three-dimensional shape measuring apparatus (three-dimensional shape measuring method) described in the paragraph of Approximation, the three-dimensional shape of the raw wood is approximated, and the shaft core that is suitable for the combined condition of the three-dimensional shape and the core part is used as the rotation core. After rotating the log for a while until the rotation core reaches a state parallel to the extending and contracting direction of the gripping member, the rotation is stopped, and then the left and right gripping members are individually displaced. , Grab the logs and bring them to the veneer It is also possible to adopt a supply method for supplying to.

また、「原木の年輪中心検出装置および方法」（特願２００９−２２２９５０号）には、例えば図１１に例示する如く、原木Ｇの左右の側方に、原木Ｇの左右の端面を各別に撮影する都合二機のカメラ３０を配設し、該カメラ３０によって撮影した原木Ｇの両端面の画像に、適宜の画像処理、即ち、前記画像上で各端面の領域内に複数の探査開始点を設定すると共に、画像上に所定サイズの検査フィルタを設定し、更に、検査フィルタ内に写っている年輪の法線方向を検出すると共に、検査フィルタを、前記各探査開始点から年輪中心に向かうように法線方向へ移動させた場合に於ける、検査フィルタの移動軌跡を探査し、探査した各移動軌跡の交点（交点が複数ある場合は、複数の交点の重心）を求める画像処理を施すことによって、前記交点（又は重心）を各端面の年輪の中心として検出する検出装置および方法が開示されており、斯様に検出した各端面の年輪の中心同士を結ぶ線を、所望の回転芯として定めることも可能であり、先記実施例に準じて、原木を、仮芯用のスピンドルで挟持すると共に、前記年輪の中心同士を結ぶ回転芯が、把持部材の伸縮方向に対して平行状を成す状態に至るまで、原木を暫時回転させた後に、回転を停止させ、次いで、左右の把持部材を個別に変位させてから、互に接近させる順序を以って、原木を把持し、ベニヤレースへ供給するようにして差支えなく、更に、必要に応じては、別途に、仮芯用のスピンドルで挟持した原木の複数箇所の外郭寸法を、外形検知器等で検知するか、或は原木の外周面へ照射した二条の線状光線を撮影するカメラの画像に対する画像処理を以って算出することにより、原木の立体形状を概算した上で、該立体形状と前記年輪との複合条件に適応する軸芯を、回転芯として定め、以下、前記同様の順序・工程を以って、ベニヤレースへ供給することも可能である。   Further, in the “Raw tree annual ring center detecting device and method” (Japanese Patent Application No. 2009-222950), for example, as shown in FIG. 11, the left and right end faces of the raw wood G are separately photographed on the left and right sides of the raw wood G. Two cameras 30 are arranged, and images of both ends of the log G taken by the camera 30 are subjected to appropriate image processing, that is, a plurality of search start points in each end face region on the image. In addition to setting an inspection filter of a predetermined size on the image, and further detecting the normal direction of the annual ring reflected in the inspection filter, the inspection filter is directed from each search start point to the center of the annual ring. When moving in the normal direction, the movement trajectory of the inspection filter is searched, and image processing is performed to find the intersection (or the center of gravity of multiple intersections if there are multiple intersections) By the above A detecting device and method for detecting a point (or center of gravity) as the center of an annual ring of each end face is disclosed, and a line connecting the centers of the annual rings of each end face thus detected may be determined as a desired rotation center. In accordance with the above-described embodiment, the log is sandwiched between the spindles for temporary cores, and the rotational core that connects the centers of the annual rings is parallel to the extending and contracting direction of the gripping member. After the log is rotated for a while, the rotation is stopped, and then the left and right gripping members are individually displaced and then gripped in the order of approaching each other and supplied to the veneer lace. In addition, if necessary, separately, the external dimensions of multiple locations of the raw wood sandwiched by the spindle for the temporary core are detected by an external shape detector or the like, or to the outer peripheral surface of the raw wood Capturing two irradiated linear rays By calculating by image processing on the image of the la, after approximating the three-dimensional shape of the raw wood, the shaft core adapted to the combined condition of the three-dimensional shape and the annual ring is determined as the rotation core, hereinafter, It is also possible to supply the veneer lace with the same sequence and process.

また、図示実施例に於ては、原木供給装置の原木把持機構を構成する把持部材を、水平方向に往復移動させる、所謂、水平移動式の原木移動機構を原木供給装置に備えており、該水平移動式の原木把持機構は、総じて、重量級の原木の供給に適するとされる反面、供給の迅速性に欠ける懸念があり、軽量級の原木の迅速な供給には、後述する如く、把持部材を振子状に揺動させる、揺動式の原木移動機構を備えた原木供給装置が適する。   In the illustrated embodiment, the log supply device is provided with a so-called horizontal movement type log moving mechanism for reciprocating the gripping member constituting the log gripping mechanism of the log supply device in the horizontal direction. Although the horizontal moving type log grasping mechanism is generally suitable for the supply of heavy weight logs, there is a concern that the supply speed is insufficient. A log supply device equipped with a swinging type log moving mechanism that swings the member in a pendulum shape is suitable.

即ち、図１２・図１３に例示した一連の装置類は、先記実施例に於ける原木供給装置Ｂに代えて原木供給装置Ｅを配設したものであり、該原木供給装置Ｅは、ガイドレール３７ａを付設した揺動梁３７、先記実施例と同じ原木芯出し装置Ａの基台４とベニヤレースＣとの間に架設されており、左右一対の支持軸３９及び軸受４０を介して、前記揺動梁３７を揺動可能に支持する左右一対の支持枠３８、いずれか片側（図示例は左側）の支持軸３９に嵌装したウォームホィール４１、該ウォームホィール４１と噛合うウォーム（図示省略）を介して、前記揺動梁３７を振子状に揺動させる回転検出器４２ａ付の駆動源４２等から成る原木移動機構ｅ２を、先記実施例に於ける原木供給装置Ｂの原木移動機構ｂ２に代えて備えると共に、先記実施例に於ける原木供給装置Ｂの原木把持機構ｂ１と同様に、把持爪３２ａを有する把持部材３２、回転検出器３４ａを具備した駆動源３４によって回転させられる螺子３３、把持部材３２を保持する保持部材３５、保持部材３５を相互に接近・離隔させる挟持作動部材３６等から成る原木把持機構ｅ１を、前記原木移動機構ｅ２の揺動梁３７に付設して構成したものであり、原木の具体的な供給態様については、先記実施例に於ける原木供給装置Ｂの場合と同様に、大別して二通りあるので、先に、保持部材共々揺動梁を、原木の回転芯に対応する位置に揺動させる態様から説明する。   That is, the series of apparatuses illustrated in FIG. 12 and FIG. 13 includes a log supply apparatus E instead of the log supply apparatus B in the previous embodiment, and the log supply apparatus E is a guide. The swinging beam 37 provided with the rail 37a is installed between the base 4 and the veneer race C of the same wood log centering apparatus A as in the previous embodiment, via a pair of left and right support shafts 39 and bearings 40. A pair of left and right support frames 38 that swingably support the swing beam 37, a worm wheel 41 fitted to a support shaft 39 on one side (left side in the illustrated example), and a worm meshing with the worm wheel 41 ( The log moving mechanism e2 including the drive source 42 with the rotation detector 42a that swings the swinging beam 37 in a pendulum shape via the swinging beam 37 is omitted from the log of the log supply apparatus B in the previous embodiment. In place of the moving mechanism b2 In the same manner as the log holding mechanism b1 of the log supply apparatus B in FIG. 2, a holding member 32 having a holding claw 32a, a screw 33 rotated by a drive source 34 having a rotation detector 34a, and a holding member for holding the holding member 32 35, a log gripping mechanism e1 composed of a clamping operation member 36 or the like for moving the holding member 35 closer to or away from each other is attached to the swinging beam 37 of the log moving mechanism e2, The supply mode is roughly divided into two types, as in the case of the log supply device B in the previous embodiment. First, the swinging beam together with the holding member is swung to a position corresponding to the rotation core of the log. It demonstrates from the aspect made to move.

而して、図１４に例示する如く、図示しない制御装置は、先記実施例の態様（図４、図５、図６参照）に準じて、原木芯出し装置Ａを介して、普通の原木Ｇ３について、仮軸芯Ｍ３を中心に一回転させ、原木右側端面に於ける末端部をｎ５、原木左側端面に於ける末端部をｎ６とする回転芯Ｎ３を定めたら、該回転芯Ｎ３の仮想延長線ｆ３上に、原木供給装置Ｅの原木移動機構ｅ２を構成する支持軸３９の中心軸ｔが位置する状態（把持された原木Ｇ３が揺動させられる際に、回転芯Ｎ３の方向が、いずれの位置に於ても常に揺動軌跡の法線と一致する状態、つまり、原木の移動方向と直交方向に向く状態）に至るまで、更に、駆動源１０を介して、原木Ｇ３を暫時回転させた後に、回転を停止させる。 Thus, as illustrated in FIG. 14, the control device (not shown) is a normal log through the log centering device A according to the embodiment (see FIGS. 4, 5, and 6). When G3 is rotated about the temporary axis M3, and the rotation core N3 is defined with the end portion on the right end face of the log being n5 and the end portion on the left end face of the log being n6, the virtual core N3 is assumed to be virtual. A state where the central axis t of the support shaft 39 constituting the log moving mechanism e2 of the log supply device E is positioned on the extension line f3 (when the gripped log G3 is swung, the direction of the rotary core N3 is In addition, until the state always coincides with the normal line of the swinging locus at any position, that is, the state in which the normal direction of the log is perpendicular to the moving direction of the log, the log G3 is temporarily moved through the drive source 10 for a while. After rotating, stop the rotation.

また一方、図示しない制御装置は、原木Ｇ３の回転芯Ｎ３を定めたら、速やかに、駆動源４２を介して、保持部材３５共々揺動梁３７を、適宜の待機位置から、所望の把持実施位置、例えば図１４に例示する如く、停止状態にある原木Ｇ３の回転芯Ｎ３の仮想延長線ｆ３上に、保持部材３５が保持する把持部材３２の真ん中が位置する位置に揺動させると共に、右側の把持部材３２の下端部と前記回転芯Ｎ３の末端部ｎ３との距離、及び左側の把持部材３２の下端部と前記回転芯Ｎ３の末端部ｎ４との距離が、夫々ベニヤレースＣのスピンドル２２の半径ｒに最少安全保障間隔αを加算して算出される、所定距離Ｚ（＝ｒ＋α）となる状態に至るまで、駆動源３４を介して、左右の把持部材３２を個別に変位させ、更に、挟持作動部材３６を介して、各保持部材３５を相互に接近させることにより、停止状態にある原木Ｇ３の把持を実施すると共に、原木芯出し装置Ａの進退部材７を介して、仮芯用のスピンドル３・３ａを原木Ｇ３の端面から離隔させることにより、原木Ｇ３の挟持を開放する。   On the other hand, when the control device (not shown) determines the rotation center N3 of the log G3, the holding member 35 and the swinging beam 37 are immediately moved from the appropriate standby position to the desired gripping execution position via the drive source 42. For example, as illustrated in FIG. 14, the gripping member 32 held by the holding member 35 is swung to the position where the center of the holding member 32 is positioned on the virtual extension line f3 of the rotating core N3 of the log G3 in the stopped state, and the right side The distance between the lower end portion of the gripping member 32 and the end portion n3 of the rotary core N3 and the distance between the lower end portion of the left gripping member 32 and the end portion n4 of the rotary core N3 are respectively determined by the spindle 22 of the veneer race C. The left and right grip members 32 are individually displaced via the drive source 34 until reaching a state where a predetermined distance Z (= r + α) is calculated by adding the minimum security interval α to the radius r, Via the clamping operation member 36 Then, by holding the holding members 35 close to each other, the grasped raw wood G3 is gripped, and the temporary core spindles 3 and 3a are moved via the advance / retreat member 7 of the raw wood centering device A. By separating from the end face of the log G3, the holding of the log G3 is released.

然る後に、図示しない制御装置は、駆動源４２を介して、保持部材３５共々揺動梁３７を、ベニヤレースＣのスピンドル２２に対応する供給位置、即ち、支持軸３９の中心軸ｔとスピンドル２２の中心軸ｋとを結ぶ仮想線ｆ２上に把持部材３２の真ん中が位置する位置へ連続的（又は間歇的）に揺動させるが、この場合の所要揺動角度θｘとしては、支持軸３９の中心軸ｔと仮芯用のスピンドル３・３ａの中心軸ｊとを結ぶ仮想線をｆ１とし、仮想線ｆ１と前記仮想線ｆ２との挟角をθ、仮想線ｆ１と前記仮想延長線ｆ３との挟角をΔθとすると、次の数式、所要揺動角度θｘ＝θ―Δθによって算出することができる。   Thereafter, the control device (not shown) supplies the swinging beam 37 together with the holding member 35 via the drive source 42 to the supply position corresponding to the spindle 22 of the veneer race C, that is, the center axis t of the support shaft 39 and the spindle. The center of the gripping member 32 is swung continuously (or intermittently) to a position where the center of the gripping member 32 is located on a virtual line f2 connecting the center axis k of the support 22. Is an imaginary line connecting the center axis t of the center axis t and the center axis j of the spindles 3 and 3a for temporary cores, and an angle between the imaginary line f1 and the imaginary line f2 is θ, and the imaginary line f1 and the imaginary extension line f3 Can be calculated by the following formula, required swing angle θx = θ−Δθ.

また更に、図示しない制御装置は、保持部材３５共々揺動梁３７を、前記供給位置へ揺動させる過程に於て、左右の把持部材３２を個別に所要長さだけ伸長或は縮小させることにより、支持軸３９の中心軸ｔと回転芯Ｎ３の末端部ｎ５との間隔、及び支持軸３９の中心軸ｔと回転芯Ｎ３の末端部ｎ６との間隔が、いずれも、支持軸３９の中心軸ｔとベニヤレースＣのスピンドル２２の中心軸ｋとの間隔と同等になるよう調整し、最終的に、回転芯Ｎ３の高さをスピンドル２２の中心軸ｋの高さに一致させる。   Still further, a control device (not shown) extends or contracts the left and right gripping members 32 individually by a required length in the process of swinging the swinging beam 37 together with the holding member 35 to the supply position. The distance between the center axis t of the support shaft 39 and the end portion n5 of the rotating core N3 and the distance between the center axis t of the support shaft 39 and the end portion n6 of the rotating core N3 are both the center axis of the support shaft 39. Adjustment is made to be equal to the distance between t and the center axis k of the spindle 22 of the veneer race C, and finally the height of the rotary core N3 is made to coincide with the height of the center axis k of the spindle 22.

斯様な揺動式の原木移動機構を用いた供給態様によっても、大多数の普通の原木については、把持部材の先端部とベニヤレースのスピンドルとの衝突を適確に回避しつつ、原木の自重に起因する慣性力が、把持爪を介入させる部位に作用する際の、力のモーメントの多寡に拘わる位置ベクトルを、従来の供給方法に比べて縮小させて、前記部位に作用する応力を、従来の供給方法に比べて低減させることができ、当初の原木の把持姿勢がそのまま維持し易いので、従来よりも精度良く原木を供給することが可能となる。   Even with such a supply mode using a rocking-type log moving mechanism, for the majority of normal logs, the collision between the tip of the gripping member and the spindle of the veneer race is avoided appropriately, while When the inertial force due to its own weight acts on the part where the grasping nail is intervened, the position vector related to the large amount of moment of force is reduced as compared with the conventional supply method, and the stress acting on the part is reduced. Compared with the conventional supply method, it can be reduced, and since the initial gripping posture of the raw wood can be easily maintained, the raw wood can be supplied with higher accuracy than in the past.

また一方、図示しない制御装置は、例えば図１５に例示する如く、外形が比較的不定形な原木Ｇ４に於て、末端部ｎ７・ｎ８を有する回転芯Ｎ４を定めた場合に、該回転芯Ｎ４の少なくともいずれか片側の末端部、例えば原木左側端面に於ける末端部ｎ８に対して、把持部材３２の先端部を所定距離Ｚ（＝ｒ＋α）隔てた位置に変位させんとすると、把持部材３２の先端部と仮芯用のスピンドル３ａとが衝突する虞が生じる場合には、やはり特例的に、少なくとも衝突する虞が生じた側の把持部材３２について、前記各実施例に於ける安全距離と同じ安全距離Ｚｅ（＝ｒ＋β）を隔てた位置に、先端部を位置させるべく、駆動源３４を介して、該当する把持部材３２の伸縮量を調整してから、挟持作動部材３６を介して、各保持部材３５を相互に接近させることにより、原木Ｇ４を把持し、次いで、前記各実施例の態様に準じて、駆動源４２を介して、保持部材３５共々揺動梁３７を、連続的（又は間歇的）に揺動させる過程に於て、駆動源３４を介して、把持部材３２の突出長さを調整することにより、原木Ｇ４の回転芯Ｎ４の高さを、左右格別に調整し、原木Ｇ４を、ベニヤレースＣのスピンドル２２の位置へ供給する。   On the other hand, a control device (not shown), for example, as shown in FIG. 15, when a rotary core N4 having end portions n7 and n8 is defined in a raw wood G4 having a relatively indeterminate outer shape, the rotary core N4 If the tip end of the gripping member 32 is displaced to a position separated by a predetermined distance Z (= r + α) with respect to at least one of the end portions, for example, the end portion n8 on the left end surface of the log, the gripping member 32 If there is a possibility that the leading end of the spindle and the spindle 3a for temporary core will collide, as a special case, at least the gripping member 32 on the side on which the possibility of collision may occur. To adjust the amount of expansion / contraction of the corresponding gripping member 32 via the drive source 34 in order to position the tip at a position separated by the same safety distance Ze (= r + β), via the clamping operation member 36, Each holding member 35 is mutually connected Then, the log G4 is gripped, and then the swinging beam 37 together with the holding member 35 is rocked continuously (or intermittently) via the drive source 42 in accordance with the embodiment described above. In the process of moving, by adjusting the protruding length of the gripping member 32 via the drive source 34, the height of the rotation core N4 of the log G4 is adjusted to the left and right, and the log G4 is veneered. Supply to the position of the spindle 22 of C.

因に、前記実施例に於ても、保持部材共々揺動梁を、適宜の待機位置から、原木の回転芯に対応する位置に揺動させる態様としたものであり、概して、原木の重心に比較的近い部位を把持することになるので、供給姿勢の精度の維持には有効であるが、揺動梁の揺動態様としては、斯様な形態に限定するものではなく、別の態様として、図１６に例示する如く、保持部材３５共々揺動梁３７を、仮芯用のスピンドル３・３ａに対応する位置、即ち、支持軸３９の中心軸ｔと仮芯用のスピンドル３・３ａの中心軸ｊとを結ぶ仮想線ｆ１上に、保持部材３５が保持する把持部材３２の真ん中が位置する位置まで揺動させる態様を採ることも可能であり、図からも明らかな如く、斯様な態様を採る場合であっても、保持部材３５共々揺動梁３７を揺動させる際の、所要揺動角度θｘとしては、前記実施例の場合と同じ数式、所要揺動角度θｘ＝θ―Δθによって算出することができ、実用的には格別支障なく、把持した原木をベニヤレースに供給することができる。但し、斯様な供給態様を採る場合に於ては、供給位置の精度の正確性からして、原木Ｇ３の回転芯Ｎ３の方向を、下方に付加した延長補助線ｆ４で示す如く、先記仮想線ｆ１と平行方向に向けると共に、仮想線ｆ３の方向は、回転芯Ｎ３の線上であって、支持軸３９の中心軸ｔから仮芯用のスピンドル３・３ａの中心軸ｊまでの距離と同等距離にある点と、支持軸３９の中心軸ｔとを結ぶ方向に定めるのが望ましい。   In the above embodiment, the holding member and the swinging beam are swung from an appropriate standby position to a position corresponding to the rotation core of the raw wood. Since a relatively close part is gripped, it is effective for maintaining the accuracy of the supply posture. However, the swinging mode of the swinging beam is not limited to such a form, but as another mode. As shown in FIG. 16, the holding member 35 and the swinging beam 37 are moved to positions corresponding to the temporary core spindles 3 and 3a, that is, the center axis t of the support shaft 39 and the temporary core spindles 3 and 3a. It is also possible to adopt a mode in which the center of the gripping member 32 held by the holding member 35 is swung to the position where the center of the gripping member 32 is located on the imaginary line f1 connecting the central axis j. Even in the case of adopting the mode, the rocking beam 37 is rocked together with the holding member 35. The required rocking angle θx at the time of the calculation can be calculated by the same equation as in the above embodiment, the required rocking angle θx = θ−Δθ. Can be supplied to the race. However, in the case of adopting such a supply mode, the direction of the rotation core N3 of the log G3 is indicated by the extension auxiliary line f4 added below in view of the accuracy of the accuracy of the supply position. The direction of the imaginary line f3 is parallel to the imaginary line f1, and the direction of the imaginary line f3 is the distance from the center axis t of the support shaft 39 to the center axis j of the temporary core spindles 3 and 3a. It is desirable to determine in a direction connecting a point at an equal distance and the central axis t of the support shaft 39.

尚、前記各実施例に於ては、把持部材を介して把持した原木をベニヤレースへ供給する際に、各原木の回転芯の高さを、単にスピンドルの中心軸の高さに一致させるよう、保持部材に対する把持部材の突出長さを、所要長さだけ左右各別に伸長若しくは縮小させる態様としたが、例えば先記特許文献３の図２３〜図２７等に開示される如く、原木芯出し装置とベニヤレースのスピンドルとの間に、バックアップロール等の如き原木供給の障害となる部材が存在する場合など、原木と他の部材との衝突を回避する必要がある場合には、図示は省略したが、把持した原木をベニヤレースへ供給する過程に於て、一時的に、障害となる部材との衝突を回避し得る位置まで、把持した原木を過剰に変位（上昇）させるよう、保持部材に対する把持部材の突出長さを、暫時余分に縮小させると共に、衝突が回避可能な位置を過ぎた以降に、各原木の回転芯の高さを、スピンドルの中心軸の高さに一致させるよう、保持部材に対する把持部材の突出長さを、所要長さだけ左右各別に伸長させる態様を採ることも可能である。   In each of the above embodiments, when the raw wood grasped via the grasping member is supplied to the veneer race, the height of the rotation core of each raw wood is simply made to coincide with the height of the center axis of the spindle. The protruding length of the gripping member with respect to the holding member is extended or reduced by the required length separately for each of the left and right. For example, as disclosed in FIG. 23 to FIG. The illustration is omitted when it is necessary to avoid the collision between the log and other members, such as when there is a member that interferes with the supply of log, such as a backup roll, between the machine and the veneer spindle. However, in the process of supplying the grasped raw wood to the veneer race, the holding member is temporarily displaced (raised) to a position where the collision with the obstacle member can be avoided temporarily. Gripping member against Holding the holding member so that the projecting length is excessively reduced for a while and the height of the rotation core of each log is matched with the height of the center axis of the spindle after the position where the collision can be avoided. It is also possible to adopt a mode in which the protruding length of the member is extended to the left and right by the required length.

また、前記各実施例からも明らかな如く、原木の回転芯の向きを、原木の移動方向と直交方向に向けた状態として、原木を把持するようにすれば、原木の把持態様の如何に拘わらず、原木の所要移動距離（所要揺動角度）は、前記各数式によって求められる値に定まるので、前記各実施例に於ける各二通りの把持態様とは異なる態様（例えば仮芯用のスピンドルと原木の回転芯との中間部の上方を把持する態様）を採ることも可能ではあるが、把持位置及び把持開放位置の算定を含めた、位置制御の容易性からすると、前記各実施例に於ける各二通りの把持態様を採るのが便利である。   Further, as is clear from each of the above-described embodiments, if the raw wood is gripped with the orientation of the rotation core of the raw wood oriented in a direction orthogonal to the moving direction of the raw wood, regardless of how the raw wood is held. First, since the required travel distance (required swing angle) of the raw wood is determined by the values obtained by the above-described formulas, a mode (for example, a spindle for a temporary core) different from each of the two grip modes in each of the above embodiments. It is also possible to adopt a mode in which the upper part of the middle part of the raw wood and the rotation core of the raw wood is gripped. However, from the viewpoint of ease of position control including calculation of the gripping position and the gripping release position, It is convenient to adopt each of the two grip modes.

また、前記各実施例に例示する如く、適数個の楔状の把持爪を先端部に有する把持部材を用いれば、原木の重心に比較的近い位置を重点的に把持し得るので、供給姿勢の安定化に有益であるが、把持爪の形状としては、斯様な楔状に限るものではなく、図示は省略したが、例えば円錐状、先端部を円錐状とした円柱状、角錐状、円周方向に於て２分割〜４分割した穴抜きポンチ状等々、従来公知の種々の形状が適用可能であり、また、必要に応じては、把持部材の先端部に付設した把持爪と同形状又は別形状の把持爪を、先端部以外の部分へ追加的に付設して成る把持部材を用いても差支えない。   In addition, as illustrated in each of the above embodiments, if a gripping member having an appropriate number of wedge-shaped gripping claws at the tip portion is used, a position relatively close to the center of gravity of the raw wood can be gripped, so the supply posture Although it is useful for stabilization, the shape of the gripping claw is not limited to such a wedge shape and is not shown in the figure, but for example, a conical shape, a cylindrical shape with a conical tip, a pyramid shape, a circumferential shape, etc. Various known shapes such as a punched punch shape divided into two to four in the direction can be applied, and if necessary, the same shape as the gripping claw attached to the tip of the gripping member or A gripping member formed by additionally attaching a gripping claw having a different shape to a portion other than the tip portion may be used.

また、図１２・図１３の実施例は、原木芯出し装置Ａとベニヤレースとの中間上方に於て、原木移動機構の揺動梁を枢支し、保持部材を吊り下げて揺動させる形態であって、全体構造の簡易性、屑処理の容易性、不良原木を排除する利便性、バックアップロール等の如き原木供給の障害となる部材が付設されいるベニヤレースへの原木供給の容易性等に優れるが、原木供給の障害となる部材が付設されていないベニヤレースへ原木を供給する場合であれば、図示は省略したが、原木芯出し装置Ａとベニヤレースとの中間下方に於て、原木移動機構の揺動梁を枢支し、保持部材を上向きに付設して揺動させる形態に変更することも、然程困難ではない。   Further, in the embodiment shown in FIGS. 12 and 13, the swinging beam of the log moving mechanism is pivotally supported in the middle upper portion of the log centering device A and the veneer race, and the holding member is suspended and swung. However, the simplicity of the overall structure, the ease of scrap disposal, the convenience of eliminating defective logs, the ease of supplying logs to veneer laces that are equipped with members that interfere with the supply of logs, such as backup rolls, etc. Although not shown in the case of supplying raw wood to a veneer lace not provided with a member that impedes the supply of raw wood, although not shown, in the middle lower part of the raw wood centering device A and the veneer lace, It is not so difficult to change to a configuration in which the swinging beam of the log moving mechanism is pivotally supported and the holding member is attached upward to swing.

また、ベニヤレースのスピンドルは、少なくとも当初に供給された原木を挟持することができれば足り、必要に応じて、旋削終期に於てスピンドルによる原木の挟持を暫時開放する、所謂、スピンドルレス切削が可能な形式のベニヤレースにも、本発明に係る原木の供給方法を適用することができる。   In addition, the spindle of the veneer lace is sufficient if it can hold at least the raw wood supplied at the beginning, and if necessary, so-called spindleless cutting is possible in which the holding of the raw wood by the spindle is temporarily released at the end of turning. The method for supplying raw wood according to the present invention can also be applied to various types of veneer laces.

以上明らかな如く、本発明に係る原木の供給方法によれば、従前の原木の供給方法に比べて、精度良く原木を供給することが可能となると共に、供給動作の起動時及び停止時の加速度を、従来よりも大きくして、供給能率の向上を図り得る可能性も有しており、斯界に於ける本発明の実施効果は著大である。   As is apparent from the above, according to the method of supplying raw wood according to the present invention, it is possible to supply raw wood with higher accuracy than the conventional method of supplying raw wood, and the acceleration at the start and stop of the supply operation. There is also a possibility that the supply efficiency can be improved by making this larger than before, and the implementation effect of the present invention in this field is remarkable.

Ａ ：原木芯出し装置
Ｂ、Ｅ ：原木供給装置
Ｃ ：ベニヤレース
Ｇ、Ｇ１、Ｇ２、Ｇ３、Ｇ４ ：原木
Ｍ、Ｍ１ ：原木の仮軸芯
Ｎ、Ｎ１、Ｎ２、Ｎ３、Ｎ４ ：原木の回転芯
１ ：左右一対の原木支持部材
２、２ａ ：原木検知器
３、３ａ ：仮芯用のスピンドル
７ ：仮芯用のスピンドルの進退作動部材
１０ ：仮芯用のスピンドルの駆動源
１１ ：外形検知器
１２、３２ ：左右一対の把持部材
１２ａ、３２ａ ：把持爪
１４、３４ ：把持部材用の螺子の駆動源
１５、３５ ：左右一対の保持部材
１６、３６ ：保持部材用の挟持作動部材
１７ ：移動梁
１８、３８ ：左右一対の支持枠
２１ ：移動梁用の螺子の駆動源
２２ ：ベニヤレースのスピンドル
３０ ：カメラ
３７ ：揺動梁
３９ ：左右一対の支持軸
４２ ：揺動梁用の支持軸の駆動源 A: Log centering device B, E: Log feeding device C: Veneer lace G, G1, G2, G3, G4: Log M, M1: Raw wood temporary shaft cores N, N1, N2, N3, N4: Log rotation Core 1: Pair of left and right log support members 2, 2 a: Log detector 3, 3 a: Spindle for temporary core 7: Advance / retreat operation member for spindle for temporary core 10: Drive source 11 for spindle for temporary core: External shape detection Containers 12 and 32: A pair of left and right gripping members 12a and 32a: Grip claws 14 and 34: Screw drive sources 15 and 35 for a gripping member: A pair of left and right holding members 16 and 36: A clamping operation member 17 for a holding member: Moving beams 18, 38: A pair of left and right support frames 21: Screw drive source 22 for moving beams: Spindle 30 of veneer race: Camera 37: Swing beam 39: A pair of left and right support shafts 42: Support for swing beam Axis drive source

Claims (5)

ベニヤレースの前位に、仮芯用のスピンドルを備えた原木芯出し装置と、先端部に把持爪を具備した伸縮自在な把持部材を有する原木把持機構を備えた原木供給装置を配設し、予め原木の所望の回転芯を個別に定めると共に、該所望の回転芯とベニヤレースのスピンドルの中心軸とを一致させるよう、個々の原木の姿勢を調整して供給するに際し、少なくとも垂直方向乃至は垂直方向の成分を含む上下方向の調整については、前記仮芯用のスピンドルで挟持した原木を、前記把持部材で把持し直してから、ベニヤレースのスピンドルの位置へ供給するまでの間の適当な時期に、前記把持部材を適宜伸縮させて姿勢を調整する原木の供給方法であって、仮芯用のスピンドルで挟持した原木を、把持部材で把持し直す際には、各原木の両端面に於ける所望の回転芯の末端部から、ベニヤレースのスピンドルの半径に最少安全保障間隔を加算して算出される、所定距離だけ離れた部位に把持爪を介入させて把持し、供給することを特徴とするベニヤレースへの原木の供給方法。   At the front of the veneer race, a log centering device provided with a spindle for temporary core and a log supply device provided with a log gripping mechanism having an extendable gripping member provided with a gripping claw at the tip part are arranged. When the desired rotation core of the raw wood is individually determined in advance and the posture of each raw wood is adjusted and supplied so that the desired rotation core and the center axis of the veneer spindle are aligned, at least in the vertical direction or For the adjustment in the vertical direction including the vertical component, an appropriate time period from when the raw wood sandwiched by the spindle for the temporary core is re-gripped by the gripping member to when it is supplied to the position of the veneer lace spindle. A method for supplying raw wood by adjusting the posture by appropriately expanding and contracting the gripping member at a time, and when re-gripping the raw wood sandwiched by the spindle for the temporary core with the gripping member, in A gripping claw is interposed between a predetermined distance from a distal end portion of a desired rotating core and calculated by adding a minimum security interval to the radius of the spindle of the veneer race. How to supply raw wood to veneer lace. ベニヤレースの前位に、仮芯用のスピンドルを備えた原木芯出し装置と、先端部に把持爪を具備した伸縮自在な把持部材を有する原木把持機構を備えた原木供給装置を配設し、予め原木の所望の回転芯を個別に定めると共に、該所望の回転芯とベニヤレースのスピンドルの中心軸とを一致させるよう、個々の原木の姿勢を調整して供給するに際し、少なくとも垂直方向乃至は垂直方向の成分を含む上下方向の調整については、前記仮芯用のスピンドルで挟持した原木を、前記把持部材で把持し直してから、ベニヤレースのスピンドルの位置へ供給するまでの間の適当な時期に、前記把持部材を適宜伸縮させて姿勢を調整する原木の供給方法であって、大多数の普通の原木を対象とする場合には、各原木の両端面に於ける所望の回転芯の末端部から、ベニヤレースのスピンドルの半径に最少安全保障間隔を加算して算出される、所定距離だけ離れた部位に把持爪を介入させて把持するよう、前記把持部材の伸縮量を調整すると共に、前記所定距離だけ離れた部位に把持爪を介入させようとすると、少なくともいずれか片側の把持部材の先端部と仮芯用のスピンドルとが衝突する虞が生じる、少数の例外的な原木を対象とする場合に限っては、特例的に、該当する側の把持部材について、仮芯用のスピンドルとの衝突が、最少安全保障間隔を隔てて回避し得る部位に把持爪を介入させるよう、伸縮量を調整して原木を把持し、供給することを特徴とするベニヤレースへの原木の供給方法。   At the front of the veneer race, a log centering device provided with a spindle for temporary core and a log supply device provided with a log gripping mechanism having an extendable gripping member provided with a gripping claw at the tip part are arranged. When the desired rotation core of the raw wood is individually determined in advance and the posture of each raw wood is adjusted and supplied so that the desired rotation core and the center axis of the veneer spindle are aligned, at least in the vertical direction or For the adjustment in the vertical direction including the vertical component, an appropriate time period from when the raw wood sandwiched by the spindle for the temporary core is re-gripped by the gripping member to when it is supplied to the position of the veneer lace spindle. A method for supplying raw wood that adjusts the posture by appropriately expanding and contracting the gripping member at a time, and when a large number of ordinary raw wood is targeted, a desired rotational core on each end face of each raw wood End Further, the amount of expansion and contraction of the gripping member is adjusted so that the gripping claw is interposed and gripped at a site separated by a predetermined distance, which is calculated by adding the minimum security interval to the radius of the spindle of the veneer race, and Targeting a small number of exceptional logs, where there is a risk that the tip of the gripping member on at least one side and the spindle for the temporary core will collide when trying to interpose the gripping claw at a site separated by a predetermined distance As a special case, the amount of expansion / contraction of the gripping member on the corresponding side is adjusted so that the gripping claw can intervene at a site where the collision with the spindle for the temporary core can be avoided with a minimum security interval. A method of supplying raw wood to a veneer lace characterized by adjusting and holding and supplying raw wood. 仮芯用のスピンドルの太さを、ベニヤレースのスピンドルの太さに比べて一段と細くした原木芯出し装置を用いて成る請求項１又は請求項２記載のベニヤレースへの原木の供給方法。   3. The method of supplying raw wood to the veneer lace according to claim 1 or 2, wherein the wood core aligning device is used in which the thickness of the spindle for the temporary core is made thinner than that of the spindle of the veneer lace. 把持部材を水平方向に往復移動させる、水平移動式の原木移動機構を備えた原木供給装置を用いて成る請求項１又は請求項２又は請求項３記載のベニヤレースへの原木の供給方法。   4. The method for supplying raw wood to a veneer race according to claim 1, 2 or 3, wherein a raw wood supply device comprising a horizontally moving raw wood moving mechanism for reciprocating the gripping member in the horizontal direction is used. 把持部材を振子状に揺動させる、揺動式の原木移動機構を備えた原木供給装置を用いて成る請求項１又は請求項２又は請求項３記載のベニヤレースへの原木の供給方法。   4. A method for supplying raw wood to a veneer lace according to claim 1, wherein the raw wood feeding device is provided with a rocking-type raw wood moving mechanism that swings the gripping member in a pendulum shape.

Images