JP2978473B1 - Automatic bending method and apparatus for bending material - Google Patents
Automatic bending method and apparatus for bending materialInfo
- Publication number
- JP2978473B1 JP2978473B1 JP14022198A JP14022198A JP2978473B1 JP 2978473 B1 JP2978473 B1 JP 2978473B1 JP 14022198 A JP14022198 A JP 14022198A JP 14022198 A JP14022198 A JP 14022198A JP 2978473 B1 JP2978473 B1 JP 2978473B1
- Authority
- JP
- Japan
- Prior art keywords
- bending
- bent
- gripper
- wooden
- grinding
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 239000000463 material Substances 0.000 title claims abstract description 80
- 238000005452 bending Methods 0.000 title claims abstract description 45
- 238000000034 method Methods 0.000 title claims abstract description 16
- 239000002023 wood Substances 0.000 claims description 18
- 238000013459 approach Methods 0.000 claims description 6
- 238000010586 diagram Methods 0.000 description 3
- 241000218645 Cedrus Species 0.000 description 2
- 235000001674 Agaricus brunnescens Nutrition 0.000 description 1
- 241000743339 Agrostis Species 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 239000013070 direct material Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Landscapes
- Sawing (AREA)
- Milling, Drilling, And Turning Of Wood (AREA)
Abstract
【要約】
【課題】 曲り材を送材車により直線移送して、移送中
に湾曲する挽面の鋸挽きされる部分が常に鋸刃先へ位置
付けされるように姿勢修正し、曲り材の自動的な曲り挽
きを可能する。
【解決手段】 送材車２付き帯鋸盤１を利用して曲り材
７を自動的に曲り挽きする方法であって、送材車２の木
掴６に把持させた曲り材７を、木掴６の移動調整により
湾曲する挽面の鋸挽きされる部分が常に帯鋸３の刃先へ
位置付けされるように姿勢修正し、送材車２により直線
移送される曲り材７を挽面７ａが湾曲するように曲り挽
きする。Kind Code: A1 A bent material is linearly transferred by a feeding machine, and a posture is corrected so that a portion to be sawed of a curved surface which is curved during the transfer is always positioned at a saw blade tip, and the bent material is automatically transferred. Enables sharp bending. SOLUTION: This method is a method of automatically bending a bent material 7 using a band sawing machine 1 provided with a material feeding vehicle 2, wherein the bent material 7 gripped by a wooden gripper 6 of the material feeding vehicle 2 is attached to a wooden gripper. The position of the curved surface is corrected so that the sawed portion of the curved surface is always positioned at the cutting edge of the band saw 3 by the movement adjustment of the curved surface 6, and the curved surface 7 a of the curved material 7 linearly transported by the feeder cart 2 is curved. To bend.
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、曲り材の自動曲り
挽き方法及び装置。詳しくは曲り材をほぼその曲りなり
に自動的に挽く曲り挽き方法及び装置に関する。The present invention relates to a method and an apparatus for automatically bending a bent material. More particularly, the present invention relates to a bending method and apparatus for automatically bending a bent material substantially in the bending direction.
【０００２】[0002]
【従来の技術】国内の森林資源は、高齢級材が枯渇して
急速に一般材化しつつあり、この一般材の大部分を占め
る杉中目材は、およそ５０％が曲り材であり、この曲り
材は直挽きすると歩留りが悪いため、直材と比較して原
木単価が安く、育林経営が極めて厳しい現状にある。し
かし、曲り材もその曲りなりに挽く曲り挽きを行えば、
製品は真っ直になってその品位が直材に直挽きしたもの
に劣らず、歩留りにおいても同等であることは一般に知
られている。 2. Description of the Related Art Domestic forest resources are depleted of old-grade timber.
It is rapidly becoming a general material and accounts for most of this general material
Approximately 50% of the cedar wood is bent, and this bent
Since the yield is poor when the timber is directly ground,
The unit price of trees is low and forest management is extremely difficult. I
If you do the bend, the bents will also bend
The product is straight and its quality is directly ground
It is generally known that
Have been.
【０００３】しかしながら、曲り挽きするには経験豊か
な作業者が、二人掛りでテーブル帯鋸盤のテーブル上に
曲り材を手送りして挽材をしなければならない。このた
め、作業は重労働であって、能率が極端に悪く、正確な
湾曲挽面を得ることも困難で、しかも、現今では曲り挽
きができる作業者が稀になっつたことから曲り挽きは全
く実施されていない状態である。 [0003] However, it is experienced to turn
Workers on a table band saw machine with two people
You have to send bent material and grind it. others
Work is hard work, extremely inefficient and accurate
It is difficult to obtain a curved surface, and now it is curved
Since the number of workers who can grind has become rare,
It has not been implemented.
【０００４】[0004]
【発明が解決しようとする課題】本発明が解決しようと
する課題は、曲り材をその前端と後端の相対移動によっ
て、彎曲する希望挽材線の各部位が常に帯鋸と接線をな
して挽道上に位置付けされるように送材して、既存の機
械による曲り材の自動曲り挽きを可能とする曲り材の自
動曲り挽き方法及び装置を提供する。The problem to be solved by the present invention is that the bending material is moved by the relative movement between the front end and the rear end.
Each part of the curved desired sawing wire always makes a tangent with the band saw.
And send it to be positioned on
Provided are a method and an apparatus for automatically bending a bent material, which enables automatic bending of the bent material by a machine .
【０００５】[0005]
【課題を解決するための手段】前記課題を解決するため
本発明に係る曲り材の自動曲り挽き方法及び装置は、下
記の方法及び構成を採用することを特徴とする。 （１） 送材車付き帯鋸盤を利用して曲り材を自動的に
曲り挽きする方法であって、送材車上に曲り材を、その
背が挽道側に位置するように末口側と元口側の木掴みに
より支持させ、前記木掴みの末口側のものと元口側のも
のとを、個別の進退手段により挽道へ近付く方向と挽道
から遠のく方向へ進退調整できるようにして、送材車の
進行中に末口側の木掴みと元口側の木掴みとを、制御器
により一方が挽道へ近付くと他方が挽道から遠のくよう
に相対位置を調整し、曲り材の彎曲する希望挽材線の各
部位を順次に挽道に内接させて、この部位へ帯鋸を接線
状に切り込ませ、直進する送材車上において曲り材を希
望する挽材線通りに正確に曲り挽きすることができる。 （２） 送材車付き帯鋸盤を利用して曲り材を自動的に
曲り挽きする装置であって、送材車は、曲り材を背が挽
道側に位置するように木掴に把持させて帯鋸盤へ向って
直線移送するものであり、木掴は、曲り材の末口側と元
口側とを掴む一対が、挽道へ近付く方向と挽道から遠の
く方向に進退する進退手段を個別に備えて、各進退手段
の作動制御により、一方の木掴みが挽道に近付くと、他
方の木掴みが挽道から遠のくように相対位置を調整する
ことができるものであり、進退手段の作動を制御する自
動制御器は、末口側の木掴みと元口側の木掴との相対位
置を、木掴に支持される曲り材の彎曲する希望挽材線の
各部位が順次に挽道に内接されて行くように組んだプロ
グラムを備えて、このプログラムに基いて末口側の木掴
と元口側の木掴との進退手段の作動を制御するものであ
る。In order to solve the above-mentioned problems, a method and an apparatus for automatically bending a bent material according to the present invention are characterized by employing the following method and configuration. (1) A method in which a bent material is automatically turned using a band sawing machine with a material sending vehicle, and the bent material is placed on the material sending vehicle, and the rear end is positioned so that the back of the material is located on the grinding road side. And the original mouth side of the wooden gripper, and the terminal end side and the original mouth side of the wooden gripper are moved toward and away from the grinding path by separate advancing and retreating means.
When the one side approaches the grinding path by the controller, the other side moves away from the grinding path by the controller. The relative position is adjusted as described above, and each part of the desired sawing material wire in which the bent material is curved is sequentially inscribed in the sawing path, and a band saw is cut tangentially into this part, and on a material transporting vehicle that travels straight. The bent material can be bent exactly as desired. (2) An apparatus for automatically turning and bending a bent material using a band sawing machine with a feeding wheel, wherein the feeding wheel causes the bent material to be gripped by a wooden grip so that the back is positioned on the side of the road. The wooden gripper has a pair of grippers, which grip the end and the original side of the bent material, in a direction approaching the grinding path and far from the grinding path.
It is possible to separately adjust the relative position so that when one of the tree grips approaches the grinding path, the other tree grip moves away from the grinding path by controlling the operation of each of the advancing and retreating means. The automatic controller for controlling the operation of the reciprocating means is capable of adjusting the relative position between the distal-end-side wooden grab and the former-end-side wooden grab by bending the desired bent lumber of the bent material supported by the wooden grab. A program is provided so that each part of the line is sequentially inscribed in the grindway. Based on this program, the operation of the forward and backward means of the end-side tree grip and the former-side tree grip is controlled. Is what you do.
【０００６】[0006]
【発明の実施の形態】以下に本発明に係る曲り材の自動
曲り挽き方法及び装置の実施形態を図面に基づいて説明
する。DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a method and an apparatus for automatically bending a bent material according to the present invention will be described below with reference to the drawings.
【０００７】図において符号１は、本発明に係る方法及
び装置に使用した送材車付き帯鋸盤である。この帯鋸盤
１は上下の鋸車３（図面には上側だけを示す）に帯鋸４
を懸張して、この帯鋸４を動力により回転させて送材車
２により移送される木材を挽材させる。[0007] In the figures, reference numeral 1 denotes a band sawing machine with a feeder wheel used in the method and apparatus according to the present invention. This band saw machine 1 has band saws 4 on upper and lower saw wheels 3 (only the upper side is shown in the drawing).
, And the band saw 4 is rotated by power to grind the timber conveyed by the feeder truck 2.
【０００８】前記送材車２は、公知の走行装置（図面省
略）に駆動されてレール５を直線的に進退するもので、
前進時に後記する木掴に把持される木材を帯鋸３へ送り
込んで挽材させ、挽材を終わると待機位置へ戻す動作を
繰り返す。The feeder wheel 2 is driven by a known traveling device (not shown) to linearly advance and retreat on the rail 5.
When the wood is gripped by a wood gripper described later during forward movement, the wood is sent to the band saw 3 to cut the wood, and when the wood is finished, the operation of returning the wood to the standby position is repeated.
【０００９】木掴６は、その一対で図１、図２、図５に
示すような曲り材７の元口側と末口側を把持させるもの
で、各々は支軸８の下部に固定した受板６ａと、支軸８
の上部へ移動可能にねじ９止めした鎹６ｂとにより構成
され、この木掴６は曲り材７の姿勢を修正するためと、
歩出しをするために進退させる必要がある。そこで、木
掴６の支軸８を回転自在に支持させた進退盤１０をベー
ス１１の摺動ガイド１２に係合させ、この進退盤１０の
上側にはサーボモータ１３に駆動される送りねじ１４を
配置し、ベース１１の端部には前記送りねじ１４を螺合
させるめねじ１５を固定する。こうすれば、一対のサー
ボモータ１３の回転状態、すなわち、回転方向及び回転
数をそれぞれ異ならせて、一対の送りねじ１４による二
つの進退盤１０の進退状態を相違させ、一対の木掴６を
一方が挽道ＳＬに近付くと他方が挽道ＳＬから遠のくよ
うに相対位置を調整して、曲り材７を送材車２の進行
中、図６の（ａ）〜（ｆ）及び図７の（ｇ）〜（ｌ）に
示す通り、彎曲する希望挽材線の各部位が順次に挽道Ｓ
Ｌに内接されて行くように姿勢修正して、各部位へ帯鋸
４が接線状に切り込んで希望する挽材線通りの曲り挽き
を正確に行えるようにする。 A pair of wooden grips 6 are used to grip the base end and the end side of a bent member 7 as shown in FIGS. 1, 2 and 5, each of which is fixed to a lower portion of a support shaft 8. Receiving plate 6a and support shaft 8
The wooden gripper 6 is used to correct the posture of the bent member 7,
You need to go back and forth to take a step. Therefore, the reciprocating plate 10 rotatably supporting the support shaft 8 of the wooden gripper 6 is engaged with the sliding guide 12 of the base 11, and a feed screw 14 driven by a servomotor 13 is provided above the reciprocating plate 10. And a female screw 15 for screwing the feed screw 14 is fixed to an end of the base 11. In this case, the rotation state of the pair of servomotors 13, that is, the rotation direction and the number of rotations are made different from each other, so that the advance / retreat state of the two advance / retreat boards 10 by the pair of feed screws 14 is made different.
When one approaches the road SL, the other is far from the road SL
6 (a) to 6 (f) and FIGS. 7 (g) to 7 (l) while the bent material 7 is being advanced by the feeding cart 2 while the relative position is adjusted .
As shown, each portion of the curved desired sawing wire is sequentially turned to the sawing path S.
Adjust the posture so that it is inscribed in L
4 cuts tangentially and bends as desired
To be able to do accurately.
【００１０】最初の曲り挽きが終わると、これに引き続
いて板取り等を行う場合は、送材車２が待機位置に戻る
と、一対のサーボモータ１３を同期回転させて、一対の
送りねじ１４により二つの進退盤１０を同様に希望する
板厚さ分だけ進め、曲り材７を均等に繰り出す歩出しを
行う。そして、前述の通り送材車２を前進させながら一
対のサーボモータ１３の回転状態を変化させ、一対の送
りねじ１４で二つの進退盤１０及び木掴６に異なる進退
動作を行わせる。こうすれば、木掴６に支持される曲り
材７の姿勢修正が行われるため、曲り材７は最初と同じ
ように以後の曲り挽きを行われて、希望する厚さの板材
が得られ、しかも、この板材は湾曲する曲り材７からの
切り離しに伴って逐次直進し、挽き落とされるときは全
体が直材を直挽きしたと同様の真っ直ぐな板になる。[0010] When the first turning is completed, when the stocking truck 2 is returned to the standby position in the case of subsequently performing plate cutting or the like, the pair of servomotors 13 are rotated synchronously to rotate the pair of feed screws 14. As a result, the two reciprocating boards 10 are similarly advanced by a desired plate thickness, and a step of uniformly feeding out the bent material 7 is performed. Then, as described above, the rotational state of the pair of servomotors 13 is changed while the feeder wheel 2 is advanced, and the two advancement / retreat boards 10 and the wooden gripper 6 perform different advancement / retreat operations with the pair of feed screws 14. In this way, since the posture of the bent member 7 supported by the wooden gripper 6 is corrected, the bent member 7 is subjected to subsequent bending in the same manner as at the beginning, and a plate having a desired thickness is obtained. In addition, this plate material goes straight one by one with the separation from the curved bending material 7, and when it is ground down, the whole plate becomes a straight plate similar to the one obtained by directly grinding the straight material.
【００１１】前記のように曲り材７の姿勢修正を行うた
め、一対の進退盤１０を個別に進退作動させるには、木
掴６が進退盤１０に対して若干の回動を行う必要があ
る。そこで、木掴６の支軸７を進退盤１０へ回動自在に
支持させると共に、進行方向後側の木掴６は揺動板１６
を介して進退盤１０へ取り付け、一対の進退盤１０と一
対の木掴み６とが一方の木掴６が挽道ＳＬに近付くと、
他方の木掴６が挽道ＳＬから遠のく運動も支障なく行わ
れるようにし、更に、一対の木掴６はこれらに曲り材７
を把持させるときは、曲り材７と正対するように位置付
けして置く必要がある。そこで、一対の木掴６の受板６
ａを連杆１７により連結して前記条件が満たされるよう
にするか、両受板６ａにこれらを常に曲り材７へ正対さ
せて置くように働き、曲り材７の姿勢修正の際、木掴６
に回動力が加われば木掴６を回動させ、回動力が除かれ
れば木掴６を正対位置に戻らせるばね（図面省略）を装
着しても同様の機能が果される。In order to correct the posture of the bent member 7 as described above, the wooden gripper 6 needs to slightly rotate with respect to the advance / retreat board 10 in order to operate the pair of advance / retreat boards 10 individually. . Therefore, the support shaft 7 of the wooden grip 6 is rotatably supported on the reciprocating board 10, and the wooden grip 6 on the rear side in the traveling direction is
Attached to reciprocating plate 10 via a pair of retractable plate 10 as one
When one pair of wooden grips 6 approaches the grinding path SL,
The other wooden grip 6 is moved away from the grinding path SL without any trouble.
Must be positioned so as to face the bent member 7. Then, the receiving plate 6 of the pair of wooden grips 6
a is connected by a connecting rod 17 so as to satisfy the above-mentioned condition, or both of them are placed on both receiving plates 6a so as to always face the bent material 7, and when the posture of the bent material 7 is corrected, a tree is formed. Grab 6
A similar function can be achieved by attaching a spring (not shown) for rotating the wooden gripper 6 when the rotational power is applied to the wooden gripper 6 and returning the wooden gripper 6 to the facing position when the rotational power is removed.
【００１２】前記のように曲り材７を姿勢修正して、湾
曲する希望挽材線の各部位を帯鋸４の刃先において順次
に挽道ＳＬへ内接させて行くためには、一対の木掴６の
相対位置を図６の（ａ）〜（ｆ）及び図７の（ｇ）〜
（ｌ）に示す通り刻々と変化させなければならない。こ
のため、位置を変化させるプログラムを組んで、このプ
ログラムに従ってサーボモータ１３の回転状態を変換
し、一対の送りねじ１４によって二つの進退盤１０と木
掴６とに異なる進退動作を行わせるようにしなければな
らない。そこで、刻々に変化する木掴６の進退距離の変
化を計算式により求めながらその位置へ木掴６を移動さ
せる場合は、演算機能を備える自動制御装置１８を用
い、刻々に変化する位置変化の距離を計算式や作図等に
より求めて登録して置き、この登録値に基づいて木掴６
をその位置へ移動させる場合は、記憶装置を備える自動
制御装置１８を用いる。[0012] In the posture correcting the bending member 7 as described above, the bay
Each part of the desired sawing wire to be bent is sequentially applied to the cutting edge of the band saw 4.
In order to make inscribed in the grinding path SL, the relative positions of the pair of wooden grips 6 are changed as shown in (a) to (f) of FIG. 6 and (g) of FIG.
It must be changed every moment as shown in (l). Therefore, formed a program to vary the position, converts the rotational state of the servo motor 13 in accordance with the program, so as to perform the different advancing and retracting operation in the two advancing and retracting plate 10 and Ki掴6 by a pair of feed screw 14 There must be. Therefore, when moving the tree grip 6 to the position while calculating the change of the moving distance of the tree grip 6 which changes every moment by a calculation formula, the automatic control device 18 having an arithmetic function is used to calculate the position change which changes every moment. The distance is obtained by a calculation formula, drawing, etc., registered and stored, and based on the registered value, the tree grip 6
Is moved to that position, an automatic control device 18 having a storage device is used.
【００１３】次に、演算機能を備える自動制御装置１８
による制御を説明する。この自動制御装置１８により制
御するときは、まず下記の条件（図５参照）により計算
式を作成する。 （１）曲り材７の湾曲する背側を円周の一部分と見做
し、その半径をＲとする。 （２）曲り材７に一対の木掴６の鎹６ｂを打ち込む位置
をＰ及びＱとし、これらＰ及びＱの初期位置は鋸刃ライ
ンＳＬより等距離にあるものとする （３）帯鋸４の刃は曲り材７の湾曲する挽面７ａの鋸挽
きされる部分へ常に接線状に切り込むものとする。 （４）曲り材７の背張り高さ（曲り材７の背側の両端を
結ぶ線から中高の頂が出っ張る寸法）をＨとする。 （５）帯鋸４により挽材される位置と進行方向前側の鎹
６ｂの打ち込み位置Ｐとの距離をＸとする。 （６）曲り材７の長さは一対の鎹６ｂ間の距離Ｌと、一
対の鎹６ｂの両側へ出っ張る長さＡの２倍の和、すなわ
ち、Ｌ＋２Ａである。 従って、曲り材７の湾曲する背側の円弧の半径を求める
と、Next, an automatic control device 18 having an arithmetic function
Will be described. When controlling by the automatic controller 18, a calculation formula is first created under the following conditions (see FIG. 5). (1) The curved back side of the bent member 7 is regarded as a part of the circumference, and its radius is defined as R. (2) The positions at which the clamps 6b of the pair of wooden grips 6 are driven into the bent member 7 are P and Q, and the initial positions of these P and Q are equidistant from the saw blade line SL. The blade always cuts tangentially into the sawed portion of the curved ground surface 7a of the bent member 7. (4) The height of the backing of the bent member 7 (the dimension where the top of the middle height protrudes from the line connecting both ends on the back side of the bent member 7) is set to H. (5) Let X be the distance between the position where the saw blade 4 grinds the wood and the driving position P of the clamp 6b on the front side in the traveling direction. (6) The length of the bent member 7 is twice the sum of the distance L between the pair of clamps 6b and the length A protruding to both sides of the pair of clamps 6b, that is, L + 2A. Therefore, when the radius of the curved back-side arc of the bending material 7 is obtained,
【００１４】[0014]
【数１】 (Equation 1)
【００１５】次に、帯鋸４の刃先が曲り材７の挽き始め
位置Ｓにあるときの曲り材７の姿勢を求める。この姿勢
を決めるには、前記（３）の条件を満足させるようにＰ
位置とＱ位置を求めればよい。Ｐ位置とＱ位置の鋸刃ラ
インＳＬからの距離をＹ１、Ｙ２とすると、Ｙ１とＹ２
とは、Ｐ位置とＱ位置とが挽道ＳＬから等距離にあると
きの挽道ＳＬからＰ位置までの距離をＰとして数２、数
３により求められる。Next, the attitude of the bent member 7 when the cutting edge of the band saw 4 is at the starting position S for cutting the bent member 7 is determined. In order to determine this posture, P should be set so as to satisfy the above condition (3).
The position and the Q position may be obtained. Assuming that the distances between the P position and the Q position from the saw blade line SL are Y1 and Y2, Y1 and Y2
Means that the P position and the Q position are equidistant from the turning path SL
The distance from the mushroom path SL to the position P is determined by Equations 2 and 3 as P.
【００１６】[0016]
【数２】 (Equation 2)
【００１７】[0017]
【数３】 (Equation 3)
【００１８】しかし、曲り材７の挽き始め位置Ｓ１から
中間位置Ｓ３までは前側の木掴６が前進し、後側の木掴
６が後退する回動運動が進行方向前側の鎹６ｂの位置Ｐ
を中心として起こるため、鎹位置ＰとＱを結ぶ直線とそ
の初期位置とがなす角度θは＋方向に増加し、この角度
θは数４により求められる。However, from the cutting start position S1 of the bent member 7 to the intermediate position S3, the front wooden grip 6 moves forward, and the turning movement of the rear wooden grip 6 retreating is caused by the position P of the front clamp 6b in the traveling direction.
, The angle θ between the straight line connecting the clamp positions P and Q and its initial position increases in the + direction, and this angle θ is obtained by Expression 4.
【００１９】[0019]
【数４】 (Equation 4)
【００２０】角度θの＋方向の変化が起こる場合のＹ２
は数５により求められる。Y2 when the angle θ changes in the + direction
Is obtained by Expression 5.
【００２１】[0021]
【数５】 (Equation 5)
【００２２】また、曲り材７の中間位置Ｓ３から挽き終
わり位置Ｓ５までは進行方向前側の木掴６が後退し、後
側の木掴６が前進する回転運動が進行方向前側の鎹６ｂ
の位置Ｐを中心として起こるため、鎹位置ＰとＱを結ぶ
直線とその初期位置とがなす角度θを−方向に増加する
もので、この角度θは数６により求められる。Further, from the intermediate position S3 of the bent member 7 to the grinding end position S5, the front wooden grip 6 in the traveling direction retreats, and the rotational movement of the rear wooden grip 6 moving forward is controlled by the front clamp 6b in the traveling direction.
, The angle θ formed between the straight line connecting the clamp positions P and Q and its initial position increases in the negative direction. This angle θ is obtained by Equation 6.
【００２３】[0023]
【数６】 (Equation 6)
【００２４】角度θの−方向の変化が起こる場合、進行
方向後側の木掴６の移動寸法Ｙ２は数式７により求めら
れる。When a change in the negative direction of the angle θ occurs, the moving dimension Y2 of the wooden gripper 6 on the rear side in the traveling direction is obtained by Expression 7.
【００２５】[0025]
【数７】 (Equation 7)
【００２６】前記のように作成した計算式を自動制御装
置１８の演算装置（図面省略）へ入力して、演算装置に
より一対の木掴６が刻々位置変化する距離を演算させつ
つ、その算出距離Ｙ１、Ｙ２だけ前後の木掴６を送りね
じ１４により移動させるようにサーボモータ１３の回転
状態を制御する。この場合、操作盤１８ａには選択事項
の曲り材７の長さＬの選択スイッチＳ１と、背張り高さ
Ｈの選択スイッチＳ２とを設けて、挽材時、作業者が曲
り材７を見てその長さＬと背張り高さＨを判断し、その
判断値に合致する選択スイッチＳ１とＳ２とを押す。す
ると、その長さＬと背張り高さＨに適合する計算式が選
択されて、この計算式で円弧をなす挽面７ａの鋸挽きさ
れる部分が帯鋸４の刃先に位置付けされるように前後の
木掴６を移動させる距離Ｙ１、Ｙ２が算出され、これに
伴い自動制御装置１６は算出値に基づいてサーボモータ
１３の回転状態を制御して、送りねじ１４により一対の
進退盤１０及び木掴６を移動させるから、この木掴６の
移動距離Ｙ１、Ｙ２の変化に伴って生ずる曲り材７の姿
勢修正の状態を長さ４ｍ、背張り高さ５０ｍｍの曲り材
７について例示したのが、図６（ａ）〜（ｆ）と図７
（ｇ）〜（ｌ）及び表１であり、これらの図、及び表に
より挽面７ａが円弧をなす曲り材７を送材車２により直
線移送してもその背側をほぼその曲りなりに自動的に正
確に曲り挽きされる。The calculation formula prepared as described above is input to a calculation device (not shown) of the automatic control device 18, and the calculation device calculates the distance at which the position of the pair of wooden grips 6 changes every moment. The rotation state of the servo motor 13 is controlled so that the front and rear wooden grips 6 are moved by the feed screw 14 by Y1 and Y2. In this case, the operation panel 18a is provided with a selection switch S1 for selecting the length L of the bent material 7 and a selection switch S2 for selecting the height of the backing H, so that the operator can view the bent material 7 when sawing. Then, the length L and the backing height H are determined, and the selection switches S1 and S2 corresponding to the determined values are pressed. Then, a calculation formula suitable for the length L and the backing height H is selected, and the calculation formula is used so that the sawed portion of the ground surface 7a forming an arc is positioned at the cutting edge of the band saw 4 before and after. The distances Y1 and Y2 for moving the wooden gripper 6 are calculated, and accordingly, the automatic control device 16 controls the rotation state of the servomotor 13 based on the calculated value, and the feed screw 14 Since the grip 6 is moved, the state of the posture correction of the bending material 7 caused by the change of the moving distances Y1 and Y2 of the wooden grip 6 is exemplified for the bending material 7 having a length of 4 m and a height of the backing of 50 mm. 6 (a) to 6 (f) and FIG.
(G)-(l) and Table 1. According to these figures and tables, even if the curved surface 7a is linearly transferred by the feeder truck 2 with the curved surface 7a forming an arc, the back side thereof is almost bent. Automatically bend precisely.
【００２７】[0027]
【表１】 [Table 1]
【００２８】一対の木掴６が位置変化する距離Ｙ１とＹ
２は、前記のように計算式で求められるし、キャド等に
よる作図でも求められるから、曲り材７の長さＬや背張
り高さＨの違うものに対応する各種の位置変化の距離Ｙ
１とＹ２を求めて、記憶装置を備える自動制御装置（図
面省略）の記憶装置に登録して置き、この登録データを
操作盤に設けた２組の選択スイツチにより選択して挽材
すれば、自動制御装置が登録されたＹ１とＹ２の距離だ
け前後の木掴６を送りねじ１４で移動させるように一対
のサーボモータ１３の回転状態を制御するから、この場
合も曲り材７をその曲りなりに挽く曲り挽きが自動的に
行われる。Distances Y1 and Y at which the positions of the pair of wooden grips 6 change.
2 is obtained by the calculation formula as described above, and is also obtained by drawing with a cad or the like. Therefore, the distance Y of various positional changes corresponding to those having different lengths L and heights H of the bent members 7 is obtained.
If 1 and Y2 are obtained and registered in a storage device of an automatic control device (not shown) equipped with a storage device, and this registered data is selected by two sets of selection switches provided on an operation panel and sawn wood is obtained, Since the automatic control device controls the rotation state of the pair of servomotors 13 so that the front and rear wooden grips 6 are moved by the feed screw 14 by the registered distance of Y1 and Y2, the bending member 7 is also bent in this case. Bending is automatically performed.
【００２９】前記の場合、曲り材７の曲りが円の一部を
なすものと見做したものであるが、曲り材７によっては
曲りが楕円の一部と見做される場合もあるから、この場
合はこの楕円に基づいて計算式を作るか、又は、作図し
て一対の木掴６が位置変化する距離を求めるようにす
る。In the above case, the bending of the bending material 7 is regarded as forming a part of a circle. However, depending on the bending material 7, the bending may be regarded as a part of an ellipse. In this case, a calculation formula is made based on the ellipse, or a drawing is made to obtain a distance at which the position of the pair of wooden grips 6 changes.
【００３０】前記のように送材車２付きの帯鋸盤１によ
り最初の曲り挽きが終わるときは、一対の木掴６が鋸刃
ラインＳＬ線と平行する待機位置に戻るから、これに伴
い、サーボモータ１３により前後の木掴６を均等に繰り
出して曲り材７の歩出しを行い、送材車２の前進に伴い
曲り材７の姿勢を修正しつつ帯鋸４による挽材を行わせ
れば、曲り挽きによる板取りを送材車２付きの帯鋸盤１
によって自動的に行える。しかし、送材車２付きの帯鋸
盤１により最初の曲り挽きが終わったとき、曲り材７を
前後の木掴み６より外してローラー帯鋸盤１９へ移し、
その送りローラー２０により曲り材７の湾曲する挽面７
ａを定規２１へ押し付けてテーブル２２上を送れば、曲
り材７は定規２１に接する湾曲挽面７ａを基準に曲線移
送されて、以後の曲り挽きをローラー帯鋸盤１９により
自動的に行われるものである。When the first turning is completed by the band sawing machine 1 with the feeder wheel 2 as described above, the pair of wood grippers 6 return to the standby position parallel to the saw blade line SL. If the front and rear wooden grips 6 are evenly extended by the servo motor 13 to step out the bent material 7, and the sawing by the band saw 4 is performed while correcting the posture of the bent material 7 with the advance of the feed cart 2, A band sawing machine 1 with a stocker 2
Can do this automatically. However, when the first bending by the band sawing machine 1 with the feeder wheel 2 is completed, the bent material 7 is removed from the front and rear wood grips 6 and transferred to the roller band sawing machine 19,
The curved surface 7 of the bent material 7 by the feed roller 20
When a is pressed against the ruler 21 and sent on the table 22, the bent material 7 is transferred in a curved manner based on the curved ground surface 7 a in contact with the ruler 21, and the subsequent bending is automatically performed by the roller band sawing machine 19. It is.
【００３１】又、ローラー帯鋸盤１９による曲り挽きに
おいては、曲り材７から反りや割れを起こし易い芯持ち
部７ｂを除く芯去り挽きも簡単にできる。すなわち、ロ
ーラー帯鋸盤１９の定規２１をサーボモータ２３等によ
り移動調整できる構成として、芯去り挽きの際は、帯鋸
２４と定規２１の距離が挽き始めと挽き終わりとで図９
に示すようにｔ１からｔ２に変化するように定規２１を
移動調整すれば、曲り材７から反りや割れを起こし易い
芯持ち部７ｂを除く芯去り挽きが自動的に確実に行われ
る。尚、この芯去り挽きは、送材車２付きの帯鋸盤１に
おいても、曲り材７が芯持ち部７ｂの末口側と元口側と
でｔ１とｔ２の寸法差を生ずるようにプログラムを組ん
で置いて一対の木掴６を操作すれば前記ローラー帯鋸盤
１９と同様に芯去り挽きを自動的に確実に行わせること
ができる。Further, in the bending with the roller band sawing machine 19, the core removal except for the core holding portion 7b, which is likely to cause warping or cracking, can be easily performed. That is, the ruler 21 of the roller band sawing machine 19 can be moved and adjusted by the servomotor 23 or the like. In the case of core cutting, the distance between the band saw 24 and the ruler 21 is changed between the start and the end of the grinding.
If the ruler 21 is moved and adjusted so as to change from t1 to t2 as shown in (1), the core removal except for the core holding portion 7b which is likely to be warped or cracked from the bent material 7 is automatically and reliably performed. Note that this core cutting is also performed in a band sawing machine 1 with a feeder wheel 2 so that the bent member 7 generates a dimensional difference between t1 and t2 between the end end and the base end of the core holding portion 7b. By operating the pair of wooden grips 6 in the assembled state, the core removal can be automatically and reliably performed in the same manner as the roller band sawing machine 19.
【００３２】[0032]
【発明の効果】請求項１の効果 送材車の木掴に曲り材
を支持させて、これを直線移送する間に湾曲する希望挽
材線の各部位が帯鋸４の刃先において順次に挽道ＳＬへ
内接して行くように姿勢修正するため、曲り材の曲り挽
きを送材車付きの帯鋸盤により自動的に正確に行えて、
しかも、製品の品位及び歩留は直材を直挽きしたものと
同等である。従って、一般の杉中目材でも収益が向上し
て悲観的な現状にある育林経営の改善に有効である。請
求項２の効果 既存の送材車付き帯鋸盤における木掴を
改造して、その進退手段の自動制御装置を設けるだけ
で、曲り材の姿勢修正を自動的に行なわせて湾曲する希
望挽材線の各部位を帯鋸４の刃先において順次に挽道Ｓ
Ｌへ内接させて行くことができるため、従来、経験豊か
な作業者にしかできなかった曲り挽きを誰でも簡単に行
うことができて、しかも、作業者によって製品に優劣の
差が出ることもなく、装置への改造，あるいは新設を行
っても費用が安くて経済状態が悪い現今においても容易
に設置して曲り材の曲り挽きを実施できる。According to the first aspect of the present invention, a bent material is supported on a wooden gripper of a feeding vehicle, and the bent material is curved while being transported linearly.
Each part of the wire is sequentially turned to the grinding path SL at the cutting edge of the band saw 4.
In order to correct the posture so that it is inscribed , the bending of the bent material can be automatically and accurately performed by a band sawing machine with a feeding car,
Moreover, the quality and yield of the product are equivalent to those obtained by directly grinding a direct material. Therefore, the profit of ordinary cedar wood is also improved, which is effective for improving the forestry management under the pessimistic situation. By modifying wood掴in claim 2 effects existing feed material wheeled band saw, only by providing an automatic control system of the moving means, dilute to bend by automatically performing the attitude correction of the bending member
Each part of the desired saw wire is sequentially cut at the cutting edge of the band saw 4
L can be inscribed in the L, so anyone can easily perform bending, which was previously only available to experienced workers, and there is a difference in the quality of the products depending on the worker In addition, even if the equipment is modified or newly installed, the cost is low and the economical condition is poor.
【図１】本件発明に係る曲り材の曲り挽き方法及び装置
に使用したし送材車付き帯鋸盤の全体図である。FIG. 1 is an overall view of a band sawing machine with a feeder used in a method and an apparatus for bending a bent material according to the present invention.
【図２】送材車に設けた一対の木掴に曲り材を把持させ
た状態の拡大平面図である。FIG. 2 is an enlarged plan view of a state in which a bent material is gripped by a pair of wooden grips provided on a stocking vehicle.
【図３】進行方向前側の木掴の進退手段の構造を示す拡
大側面図である。FIG. 3 is an enlarged side view showing a structure of a forward / backward movement means of a wooden gripper on a front side in a traveling direction.
【図４】進行方向後側の木掴の進退手段の構造を示す拡
大側面図である。FIG. 4 is an enlarged side view showing a structure of a forward / backward moving means of a wooden grip on a rear side in a traveling direction.
【図５】湾曲する挽面の鋸挽きされる部分が常に帯鋸の
刃先へ位置付けされるように曲り材を姿勢修正するため
前後の鎹位置を計算する計算式に用いた諸条件の説明図
である。FIG. 5 is an explanatory diagram of conditions used in a calculation formula for calculating front and rear clamp positions for correcting a posture of a bent material so that a sawed portion of a curved ground surface is always positioned at a cutting edge of a band saw. is there.
【図６】（ａ）〜（ｆ）は曲り材を曲り挽きする工程の
前半における曲り材の姿勢と木掴の位置との関係を示す
説明図である。6 (a) to 6 (f) are explanatory diagrams showing the relationship between the posture of the bent material and the position of the wood gripper in the first half of the process of bending the bent material.
【図７】（ｇ）〜（ｌ）は曲り材を曲り挽きする工程の
後半における曲り材の姿勢と木掴の位置との関係を示す
説明図である。FIGS. 7 (g) to (l) are explanatory diagrams showing the relationship between the posture of the bent material and the position of the wooden gripper in the latter half of the process of bending the bent material.
【図８】二回目以降の曲り挽きをローラー帯鋸盤により
行う状態を示す平面図である。FIG. 8 is a plan view showing a state in which the second and subsequent bends are performed by a roller band sawing machine.
【図９】ローラー帯鋸盤により心去り挽きを行う状態を
示す説明図である。FIG. 9 is an explanatory view showing a state in which a center cutting is performed by a roller band sawing machine.
１ 帯鋸盤 ２ 送材車 ４ 帯鋸 ６ 木掴 ６ａ 受板 ６ｂ 鎹 ７ 曲り材 ７ａ 挽面 １４ 進退手段 １８ 自動制御装置 １９ ローラー帯鋸盤 ２０ 送りローラー ２１ 定規 DESCRIPTION OF SYMBOLS 1 Band sawing machine 2 Feeding cart 4 Band saw 6 Wood gripper 6a Receiving plate 6b Cramp 7 Bending material 7a Ground surface 14 Advance / retreat means 18 Automatic control device 19 Roller band sawing machine 20 Feeding roller 21 Ruler
フロントページの続き (56)参考文献 特開 平４−10901（ＪＰ，Ａ) 特開 昭54−51099（ＪＰ，Ａ) 特公 平７−96201（ＪＰ，Ｂ２) (58)調査した分野(Int.Cl.6，ＤＢ名) B27B 13/00 B27B 29/10 Continuation of the front page (56) References JP-A-4-10901 (JP, A) JP-A-54-51099 (JP, A) JP-B-7-96201 (JP, B2) (58) Fields investigated (Int) .Cl. 6 , DB name) B27B 13/00 B27B 29/10
Claims (2)
動的に曲り挽きする方法であって、 送材車上に曲り材を、その背が挽道側に位置するように
末口側と元口側の木掴みにより支持させ、 前記木掴みの末口側のものと元口側のものとを、個別の
進退手段により挽道へ近付く方向と挽道から遠のく方向
へ進退調整できるようにして、 送材車の進行中に末口側の木掴みと元口側の木掴みと
を、制御器により一方が挽道へ近付くと他方が挽道から
遠のくように相対位置を調整し、 曲り材の彎曲する希望挽材線の各部位を順次に挽道に内
接させて、この部位へ帯鋸を接線状に切り込ませ、 直進する送材車上において曲り材を希望する挽材線通り
に正確に曲り挽きすることができることを特徴とする曲
り材の自動曲り挽き方法。1. A method for automatically bending a bent material using a band sawing machine with a material sending vehicle, wherein the bent material is placed on a material sending vehicle such that a back of the bent material is positioned on a grinding road side. The tip side and the source side of the tree grip are supported by a wooden gripper at the mouth side and the original mouth side, and the direction of approaching the grinding path and the distance from the grinding path by the separate advancing / retreating means are determined. direction
The forward and backward adjustments can be made so that the gripper on the trailing end side and the gripper side on the original mouth side are controlled by the controller so that when one approaches the grinding road, the other moves farther away from the grinding road while the trawler is running. By adjusting the position, each part of the desired sawing material wire where the bending material curves is sequentially inscribed in the sawing path, a band saw is cut tangentially into this part, and the bending material is straightened on a straight-forward feeder vehicle. An automatic bending method for a bent material, characterized in that the bent material can be bent exactly as desired.
動的に曲り挽きする装置であつて、 送材車は、曲り材を背が挽道側に位置するように木掴に
把持させて帯鋸盤へ向って直線移送するものであり、 木掴は、曲り材の末口側と元口側とを掴む一対が、挽道
へ近付く方向と挽道から遠のく方向に進退する進退手段
を個別に備えて、各進退手段の作動制御により、一方の
木掴みが挽道に近付くと、他方の木掴みが挽道から遠の
くように相対位置を調整することができるものであり、 進退手段の作動を制御する自動制御器は、末口側の木掴
みと元口側の木掴との相対位置を、木掴に支持される曲
り材の彎曲する希望挽材線の各部位が順次に挽道に内接
されて行くように組んだプログラムを備えて、このプロ
グラムに基いて末口側の木掴と元口側の木掴との進退手
段の作動を制御するものであることを特徴とする曲り材
の自動曲り挽き装置。2. An apparatus for automatically turning and bending a bent material using a band sawing machine with a material feeding wheel, wherein the material feeding wheel holds the bent material on a wooden grip so that the back is positioned on the side of the grinding road. toward allowed grasped by the band saw is intended to linearly transport, Ki掴a pair of grasping the mouth side and the bottom end side end of the bent material,挽道
Retreating means for moving back and forth in the direction approaching and away from the grinding path
The relative position can be adjusted by controlling the operation of each of the advancing and retreating means so that when one of the tree grips approaches the grinding path, the other tree grip is far from the grinding path. The automatic controller that controls the operation of the wood gripper determines the relative position between the wood gripper on the distal end and the wood gripper on the original mouth by sequentially changing each part of the curved desired sawing wire of the bending material supported by the wood gripper. It is provided with a program that is assembled so that it is inscribed in the grindway, and controls the operation of the forward / backward movement means between the wooden grip on the distal end and the wooden grip on the original mouth based on this program. Automatic bending machine for bending materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14022198A JP2978473B1 (en) | 1998-05-21 | 1998-05-21 | Automatic bending method and apparatus for bending material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14022198A JP2978473B1 (en) | 1998-05-21 | 1998-05-21 | Automatic bending method and apparatus for bending material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2978473B1 true JP2978473B1 (en) | 1999-11-15 |
| JPH11320503A JPH11320503A (en) | 1999-11-24 |
Family
ID=15263734
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14022198A Expired - Fee Related JP2978473B1 (en) | 1998-05-21 | 1998-05-21 | Automatic bending method and apparatus for bending material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2978473B1 (en) |
-
1998
- 1998-05-21 JP JP14022198A patent/JP2978473B1/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH11320503A (en) | 1999-11-24 |
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