JP4242969B2

JP4242969B2 - Plate-shaped body dividing device

Info

Publication number: JP4242969B2
Application number: JP14960999A
Authority: JP
Inventors: 克次長谷川
Original assignee: Meinan Machinery Works Inc
Current assignee: Meinan Machinery Works Inc
Priority date: 1998-06-01
Filing date: 1999-05-28
Publication date: 2009-03-25
Anticipated expiration: 2019-05-28
Also published as: JP2000052315A

Description

【０００１】
【発明の属する技術分野】
本発明は、ベニヤ単板（以下単板という）やＭＤＦ（Medium Density Fiberboard）に代表される木質繊維板等の板状体を、厚さ方向に分割する分割装置に関するものである。
【０００２】
【従来の技術】
従来板状体の分割装置は、側面説明図である図９及び図９で後述する駆動軸１、２の回転中心を結ぶ垂直仮想線である一点鎖線Ｅ−Ｅでの断面で矢印方向を見た説明図である図１０に示す様に構成されていた。
即ち、図９に示す様に基台（図示せず）に回転自在に支持されモ−タ（図示せず）により矢印の方向に常時同じ回転数で、互いに異なる方向に回転駆動される駆動軸１、２を上下に相対して平行に備える。
駆動軸１、２には、外周に回転方向へ一定間隔をおいて突刺体３、４が形成され突刺体を含む直径が１３５mm、厚さが２mmの多数の突刺ロ−ル５、６を、駆動軸１、２の軸中心線方向に各々一定間隔で、また上下方向では図１０に示す様に突刺ロ−ル５、６が相対向し且つ突刺体３、４の先端の間隔が１〜２mmとなるように設ける。
尚、駆動軸１の軸中心線とは、駆動軸１の回転中心を結ぶ仮想線即ち駆動軸１の長手方向と直交する各断面での回転中心を結ぶ仮想線を指す。駆動軸２の軸中心線も同様に、駆動軸２の回転中心を結ぶ仮想線即ち駆動軸２の長手方向と直交する各断面での回転中心を結ぶ仮想線を指す。
また、駆動軸１、２の外周には、各々軸中心線と平行で一端から他端に至る溝１ａ、２ａを設け、各々の突刺ロ−ル５、６の内周に設けた係止部５ａ、６ａを図９に示す様に該溝１ａ、２ａに挿入した状態で突刺ロ−ル５、６を駆動軸１、２に装着することにより、駆動軸１、２の動力を突刺ロ−ル５、６に伝達するように構成する。
【０００３】
また駆動軸３において隣り合う突刺ロール５の間と、駆動軸４において隣り合う突刺ロール６の間には、各々次のような規制部材７、８を上下に相対向して設ける。即ち、図９で、規制部材７、８の左側端部が各々基台（図示せず）に固定支持され、右側の先端は、一点鎖線Ｅ−Ｅより搬出側に位置する様に設ける。
また規制部材７、８の右側の先端には、図９の円Ｆの箇所の部分拡大図である図１１に示す様に、突刺ロ−ル５、６の搬入側から搬出側に向かって漸次互いに接近するべく、一点鎖線Ｅ−Ｅと直交する水平仮想線に対する角度が１度となる傾斜した長さ２mmの面７ａ、８ａを各々設ける。更にこれら規制部材７、８は、上下方向で最も接近した箇所である角部７ｂ及び８ｂとの間隔が、分割すべき板状体の厚さの９０％に相当する距離となるように配置されている。
【０００４】
また、規制部材７、８の搬出側には、図９に示すように、刃先が水平仮想線上にあって搬入側を向き先端角が２４度で水平仮想線に対し均等振り分けした分割刃９を、分割刃９の刃先が角部７ｂと８ｂを結ぶ上下の仮想線を二等分する点を通る水平仮想線上に位置する状態で、基台（図示せず）に固定する。
更には、規制部材７、８に各々相対し同じく一端側が基台（図示せず）に支持され、他端側が分割刃９付近に至ることで、分割刃９側に、各々突刺ロール５の各突刺体５の先端を結ぶ仮想円及び突刺ロール６の突刺体６の先端を結ぶ仮想円と各々緩やかに交差する面１０ａ、１１ａを有するはがし部材１０、１１を、上下に相対して備える。
一方、突刺ロ−ル５、６の搬入側には、突刺ロ−ル５、６の突刺体３、４の先端の周速と同じ速さで走行する搬入コンベア１２を、またはがし部材１０及びはがし部材１１の各々の搬出側には、同じく搬出コンベア１３、１４を設ける。
【０００５】
以上の様な分割装置において、搬入コンベア１２上に図９の二点鎖線で示す様に、木質繊維板Ｐを載せる。
そこで木質繊維板Ｐは搬入コンベア１２により搬送され、回転する突刺ロ−ル５、６の突刺体３、４が木質繊維板Ｐの表裏面に突刺されつつ、木質繊維板Ｐは搬送され続ける。次に木質繊維板Ｐは、規制部材７、８の前記先端の面７ａ、８ａにより厚さ方向に加圧されつつ木質繊維板Ｐの厚さ方向の中央の位置が分割刃９に当接され、図９に示す様に上下に連続的に分割されて二等分され、２枚の木質繊維板Ｐａ，Ｐｂとなる。
【０００６】
この分割において、木質繊維板Ｐが、木質繊維板Ｐの表裏面側の相対向する位置に備えた規制部材７、８の前記先端の面７ａ、８ａにより厚さ方向に加圧されることにより、分割刃９による分割時での、木質繊維板Ｐへの大きな先割れの発生が防止され、木質繊維板Ｐの分割された面は良好となる。
これら木質繊維板Ｐａ，Ｐｂは分割された後はそれぞれ、図９に示す様に、突刺体３、４に突刺され続けるが、前述のように突刺体３、４の先端を結ぶ仮想円と各々交差する面１０ａ、１１ａを有するはがし部材１０、１１を備えてあるので、面１０ａ、１１ａによって木質繊維板Ｐａ，Ｐｂは突刺体３、４から順次はがされて搬出コンベア１３、１４に乗り移り、次工程へと搬送されるのである。
【０００７】
【発明が解決すべき課題】
前記従来装置では、図１０に示す様に、突刺ロ−ル５、６が相対向して配置され、しかも突刺体３、４の先端が、水平線と平行な切刃３ａ、４ａとなっていること、突刺体３、４が突刺ロール５、６の外周で回転方向に比較的狭い間隔で配置されていること、木質繊維板Ｐの分割時に受ける力による駆動軸１、２の撓み等の理由により、相対向する突刺体３、４の先端の間隔を少なくとも１mm程度としないと、相対向する突刺体３、４同士が回転中に当たり突刺体３、４が破損してしまい、駆動軸１、２からの力が突刺体３、４から木質繊維板Ｐに伝達されず、分割ができなくなる等の問題があった。
しかし前記のように相対向する突刺体３、４の先端の間隔を１mm程度とすると、厚さが例えば１．５mmと比較的薄い板状体の場合、表面から突刺体を十分な深さ突刺することができず分割が困難となったり、また材質が固い板状体の場合も、同様に十分な深さ突刺できず分割が困難となるのであった。
勿論、突刺ロ−ル５、６を相対向した位置ではなく駆動軸１、２の軸中心線方向にずれた状態で配置すれば、上記問題はなくなる。しかし、前述のように分割された面を良好とするために、分割刃９により分割される直前の位置で、木質繊維板Ｐの表裏面側の相対向する位置に備えた規制部材７、８の前記先端の面７ａ、８ａにより木質繊維板Ｐを表裏面から厚さ方向に加圧することが必要であり、前記軸中心線方向にずれた状態で配置すると、この加圧が十分に行えず、分割された面の凹凸が大きく、他の板材に接着した時の商品価値が低下してしまうのである。
【０００８】
【課題を解決するための手段】
本発明は前記課題を解決するために、駆動源により互いに異なる方向に回転駆動される一対の平行な回転軸と、各々の回転軸の軸中心線方向に間隔を置き且つ両回転軸の関係では相対向する位置に固定された、周囲に突刺体を備えた多数の突刺ロールと、各々の回転軸に固定された隣り合う突刺ロールの間に配置され且つ両回転軸の関係では相対向する位置に固定された押圧部材と、該突刺ロールの回転方向搬出側に、刃先を該回転方向の搬入側に向けて備えられた刃物と、該突刺ロールの、突刺体の先端の回転軌跡と交差する面を有するはがし部材と、からなる板状体の分割装置において、前記相対向する突刺体同士の先端が、前記回転軸の軸中心線方向でずれた位置にあるように形成するものである。
【０００９】
【発明の実施の形態】
次に本発明の実施の形態を説明する。
本発明の実施の形態は、図１乃至図２に示すものであるが、前記述べた従来装置で、突刺体３、４及び突刺ロール５、６を除いた各部材は同様に配置するもので同じ符号を用いてあり、これら部材の説明は省略する。
尚、規制部材７、８も、前記従来装置の図１１で述べたように、角部７ｂ及び８ｂとの間隔が、分割すべき板状体の厚さの９０％に相当する距離となるように配置し、また分割刃９を、分割刃９の刃先が角部７ｂと８ｂを結ぶ上下の仮想線を二等分する点を通る水平仮想線上に位置する状態で基台（図示せず）に固定する。
本実施の形態での突刺体２１、２２及び突刺ロール２３、２４は、分割装置の側面説明図である図１及び図１の一点鎖線Ｘ−Ｘにおける断面で矢印方向の説明図である図２、図２の円Ｂで囲んだ部分の拡大説明図である図３、図１の一点鎖線Ｙ−Ｙにおける断面で矢印方向を見た状態の拡大説明図である図４、及び図１の円Ａで囲んだ部分の拡大説明図である図５に示す様に形成する。但し、図１、図２に対する図３、図４の拡大率は同一で示し、図５は更に拡大率を大として示してある。
【００１０】
即ち、両突刺ロール２３、２４は各突刺体を含む状態での直径が１３５mm、厚さが２mmとする。また突刺ロール２３の周囲に形成された突刺体２１は、図３、図４において上下方向の面、即ち、駆動軸１の半径方向に伸びる面２１ａと、該面２１ａと２０度で交差する面２１ｂとにより構成されており、同じく突刺ロール２４の周囲に形成された突刺体２２は、駆動軸２の半径方向に伸びる面２２ａと、面２１ｂと平行であって該面２２ａと２０度で交差する面２２ｂとにより構成されている。
また図５において、突刺体２１の突刺ロール２３の半径方向における高さＨは２．５mm、角度Ｚは約３０度で、突刺ロール２３の回転方向に約５mm間隔で形成されており、突刺ロール２４の突刺体２２も同様に形成されている。
更に各々相対向する突刺体２１、２２においては、図３において面２１ｂと面２２ｂとが相対向するように配置することにより、相対向する突刺体２１、２２同士の先端２１ｃ、２２ｃが、駆動軸１または２の軸中心線方向で、即ち、図３の左右方向でずれた位置にあるように構成されている。
一方、突刺体２１、２２の先端が、図１の上下方向において、０．７mm重なり合う状態に備えられている。即ち図３では２個の矢印で示す、相対向する突刺体２１の先端２１ｃを通る水平仮想線と、突刺体２２の先端２２ｃを通る水平仮想線との間隔Ｌが０．７mmとなるように、各突刺ロール２３、２４が駆動軸１、２に固定されている。
尚、各突刺ロール２３、２４にも係止部２３ａ、２４ａを設け、前記従来装置と同様に、溝１ａ、２ａに挿入した状態で駆動軸１、２に装着する。
【００１１】
以上の様な分割装置において、搬入コンベア１２上に図１の二点鎖線で示す様に、例えば厚さ２，７mmの木質繊維板Ｓを載せる。
そこで木質繊維板Ｓは搬入コンベア１２により矢印方向に搬送され、次いで回転する突刺ロ−ル２３、２４の突刺体２１、２２が木質繊維板Ｓの表裏面に突刺されつつ、木質繊維板Ｓは搬送され続ける。次に木質繊維板Ｓは、規制部材７、８の前記面７ａ、８ａにより厚さ方向に加圧され、この状態で分割刃９に木質繊維板Ｓの厚さ方向の中央の位置が当接されて図１に示す様に上下に連続的に分割され、厚さがほぼ等しい２枚の木質繊維板Ｓａ，Ｓｂとなる。
【００１２】
この分割において、突刺体２１、２２は図３に示す様に木質繊維板Ｓの厚さ方向の中央より深く突刺されているが、図２、図３から明らかなように、相対向する突刺体２１、２２同士の先端２１ｃ、２２ｃが、駆動軸１または２の軸中心線方向でずれた位置にあり、互いに回転する軌跡が異なるので、当たって破損することがない。
また分割中に、異常な力が作用して突刺体２１または２２の先端が図３の左右方向に曲げられたり、両突刺体２１、２２が接近するような力を受けたとしても、相対向する突刺体２１の先端２１ｃと突刺体２２の先端２２ｃとが当たることは殆どない。
一方、規制部材７、８は木質繊維板Ｓを挟んで相対向する位置で木質繊維板Ｓを加圧するので、規制部材７、８が木質繊維板Ｓを挟んでずれた状態で加圧する場合に比べて有効に加圧できるので、分割刃９により分割された木質繊維板Ｓａ，Ｓｂの分割面は凹凸の少ない良好な面となる。
これら分割された木質繊維板Ｓａ，Ｓｂは、前記従来装置と同様に、はがし部材１０、１１の面１０ａ、１１ａによって突刺体２１、２２から順次はがされて搬出コンベア１３、１４に乗り移り、次工程へと搬送されるのである。
このようにして得られた木質繊維板Ｓａ，Ｓｂで、例えばＭＤＦを分割して得られたものを、合板の表面に接着し更に接着したＭＤＦの上に突板や塩化ビニール樹脂のシートを接着し、建物の床材や内装材に使用する。
【００１３】
以上本発明の実施の形態を説明したが、次の様に変更しても良い。
１、図３で、突刺体２１の面２１ａと面２１ｂとが交差する角度は１０度乃至３０度程度で良い。突刺体２２も同様である。
２、図５で示した突刺体２１の先端の角度Ｚは、２０度乃至５０度程度で良い。
３、相対向する突刺体の図３で示した断面での形状は、必ずしも同一である必要はなく、要は相対向する突刺体同士の先端が、前記駆動軸の軸中心線方向でずれた位置にあればよく、図６に示すように、突刺体２５の面２５ａと２５ｂとにより構成される角度が、突刺体２２の面２２ａと面２２ｂとにより構成される角度より大として、先端２５ｃと先端２２ｃとが前記軸中心線方向でずれた位置あるようにしても良い。
４、突刺体の図３で示した断面での形状は、図７に示すように、面２６ｂを直線ではなく曲線で構成した突刺体２６としても良く、また図７の上下方向に対し共に傾斜した２つの面２７ａ及び２７ｂを有する突刺体２７としても良い。この場合も先端２６ｃと先端２７ｃとが、前記軸中心線方向でずれた位置あるように構成する。
５、突刺体２１、２２の図４で表される先端は鋭利な状態のものを示したが、図４の円Ｄの箇所の拡大説明図に相当する図８に示すように、先端２１ｃの左右方向の幅が例えば約０．５mmとなるように形成しても良い。
６、本発明では、相対向する突刺体の先端の対向方向の位置、即ち図３の上下方向の位置は、両先端が間隔を開けた状態としても良い。この状態でも異常な力により駆動軸が撓むことで両先端が接近しても、突刺体同士が当たることがない。
７、板状体を分割する場合、厚さ方向の二等分ではなく、分割刃の刃先の位置を板状体の厚さ方向の中央から一方にずれた状態に固定し、厚さが異なる２枚の板状体を得るようにしても良い。
８、押圧部材としては、前記実施の形態でのバー形式の規制部材７、８の他、摩擦力を少なくするために、板状体を押圧する箇所に軸受により回転自在に支持されている回転体を用いても良い。
【００１４】
【発明の効果】
以上のように、本発明の分割装置によれば、比較的薄い板状体や材質が固い板状体であっても、突刺体２１、２２を十分に板状体に突刺して分割することができ、また相対向する突刺体２１、２２同士が分割中に当たり破損することがない。
【図面の簡単な説明】
【図１】発明の実施の形態の側面説明図である。
【図２】図１の一点鎖線Ｘ−Ｘにおける断面で矢印方向の説明図である。
【図３】図２の円Ｂで囲んだ部分の拡大説明図である。
【図４】図１の一点鎖線Ｙ−Ｙにおける断面で矢印方向を見た状態の拡大説明図である。
【図５】図１の円Ａで囲んだ部分の拡大説明図である。
【図６】突刺体の変更例の説明図である。
【図７】突刺体の変更例の説明図である。
【図８】図４の円Ｄの箇所の拡大説明図に相当する図である。
【図９】従来装置の側面説明図である。
【図１０】図９の一点鎖線Ｅ−Ｅにおける断面で矢印方向の説明図である。
【図１１】図９の円Ｆの箇所の部分拡大説明図である。
【符号の説明】
１・・駆動軸
２・・駆動軸
７・・規制部材
８・・規制部材
９・・分割刃
１０・・はがし部材
１１・・はがし部材
２１・・突刺体
２１Ｃ・・突刺体の先端
２２・・突刺体
２２Ｃ・・突刺体の先端
２３・・突刺ロール
２４・・突刺ロール
Ｓ・・木質繊維板
Ｐ・・木質繊維板[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a dividing apparatus that divides a plate-like body such as a veneer single plate (hereinafter referred to as a single plate) or a wood fiber board represented by MDF (Medium Density Fiberboard) in the thickness direction.
[0002]
[Prior art]
The conventional plate-shaped body dividing device is seen in the direction of the arrow in the cross section taken along the alternate long and short dash line EE, which is a vertical imaginary line connecting the rotation centers of the drive shafts 1 and 2, which will be described later with reference to FIGS. It was constructed as shown in FIG.
That is, as shown in FIG. 9, a drive shaft that is rotatably supported by a base (not shown) and is always driven to rotate in the directions different from each other in the direction of the arrow by a motor (not shown). 1 and 2 are provided parallel to each other in the vertical direction.
The drive shafts 1 and 2 are provided with a plurality of piercing rolls 5 and 6 having a diameter of 135 mm and a thickness of 2 mm including piercing bodies formed on the outer circumference at regular intervals in the rotation direction on the outer periphery. As shown in FIG. 10, the piercing rolls 5 and 6 are opposed to each other in the axial center line direction of the drive shafts 1 and 2 and the distance between the tips of the piercing bodies 3 and 4 is 1 to 4, respectively. Provide to be 2 mm.
The axis center line of the drive shaft 1 refers to a virtual line connecting the rotation centers of the drive shaft 1, that is, a virtual line connecting the rotation centers in each cross section orthogonal to the longitudinal direction of the drive shaft 1. Similarly, the axis center line of the drive shaft 2 indicates a virtual line connecting the rotation centers of the drive shaft 2, that is, a virtual line connecting the rotation centers in the respective cross sections orthogonal to the longitudinal direction of the drive shaft 2.
In addition, grooves 1a and 2a extending from one end to the other end are provided on the outer circumferences of the drive shafts 1 and 2, respectively, and locking portions provided on the inner circumferences of the piercing rolls 5 and 6, respectively. By inserting the piercing rollers 5 and 6 to the drive shafts 1 and 2 with the 5a and 6a inserted in the grooves 1a and 2a as shown in FIG. Are configured to be transmitted to
[0003]
Further, between the adjacent piercing rolls 5 on the drive shaft 3 and between the adjacent piercing rolls 6 on the driving shaft 4, the following regulating members 7 and 8 are provided so as to face each other vertically. That is, in FIG. 9, the left end portions of the regulating members 7 and 8 are each fixedly supported on a base (not shown), and the right end is provided so as to be located on the carry-out side from the one-dot chain line EE.
Further, at the right ends of the regulating members 7 and 8, as shown in FIG. 11 which is a partially enlarged view of a circle F in FIG. 9, the piercing rolls 5 and 6 are gradually moved from the carry-in side toward the carry-out side. In order to approach each other, inclined surfaces 2a and 8a each having an angle of 1 degree with respect to a horizontal virtual line orthogonal to the alternate long and short dash line EE are provided. Further, these regulating members 7 and 8 are arranged so that the distance between the corners 7b and 8b, which are the closest portions in the vertical direction, corresponds to 90% of the thickness of the plate-like body to be divided. ing.
[0004]
Further, as shown in FIG. 9, on the carry-out side of the regulating members 7 and 8, there are divided blades 9 whose blade edges are on the horizontal imaginary line, facing the carry-in side and having a tip angle of 24 degrees and equally distributed to the horizontal phantom line. The blade edge of the split blade 9 is fixed to a base (not shown) in a state where it is positioned on a horizontal imaginary line passing through a point that bisects the upper and lower imaginary lines connecting the corners 7b and 8b.
Furthermore, each of the piercing rolls 5 is arranged on the divided blade 9 side so that one end side is supported by a base (not shown) and the other end side is in the vicinity of the divided blade 9. Peeling members 10 and 11 having surfaces 10a and 11a that gently intersect the virtual circle connecting the tip of the piercing body 5 and the virtual circle connecting the tip of the piercing body 6 of the piercing roll 6 are provided relative to each other vertically.
On the other hand, on the carry-in side of the piercing rolls 5, 6, a carry-in conveyor 12 that travels at the same speed as the peripheral speed of the tip of the piercing bodies 3, 4 of the piercing rolls 5, 6 or a peeling member 10 And on each carrying-out side of the peeling member 11, the carrying-out conveyors 13 and 14 are similarly provided.
[0005]
In the dividing apparatus as described above, the wood fiber board P is placed on the carry-in conveyor 12 as indicated by a two-dot chain line in FIG.
Therefore, the wooden fiberboard P is conveyed by the carry-in conveyor 12, and the wooden fiberboard P is continuously conveyed while the piercing bodies 3 and 4 of the rotating piercing rolls 5 and 6 are pierced on the front and back surfaces of the wooden fiberboard P. Next, the center position of the wood fiber board P in the thickness direction is brought into contact with the dividing blade 9 while the wood fiber board P is pressed in the thickness direction by the front end surfaces 7a and 8a of the regulating members 7 and 8. As shown in FIG. 9, it is continuously divided into upper and lower parts and divided into two equal parts to form two wood fiber boards Pa and Pb.
[0006]
In this division, the wood fiber board P is pressed in the thickness direction by the front end surfaces 7a and 8a of the regulating members 7 and 8 provided at opposing positions on the front and back sides of the wood fiber board P. The occurrence of large cracks in the wood fiber board P at the time of division by the division blade 9 is prevented, and the divided surface of the wood fiber board P becomes good.
After the wood fiber boards Pa and Pb are divided, as shown in FIG. 9, they continue to be pierced by the piercing bodies 3 and 4, respectively, and the virtual circles connecting the tips of the piercing bodies 3 and 4 as described above, respectively. Since the peeling members 10 and 11 having the intersecting surfaces 10a and 11a are provided, the wood fiber boards Pa and Pb are sequentially peeled off from the piercing bodies 3 and 4 by the surfaces 10a and 11a and transferred to the carry-out conveyors 13 and 14, It is conveyed to the next process.
[0007]
[Problems to be Solved by the Invention]
In the conventional apparatus, as shown in FIG. 10, the piercing rolls 5 and 6 are arranged opposite to each other, and the tips of the piercing bodies 3 and 4 are cutting blades 3a and 4a parallel to the horizontal line. The reason why the piercing bodies 3 and 4 are arranged on the outer periphery of the piercing rolls 5 and 6 at a relatively narrow interval in the rotational direction, and that the drive shafts 1 and 2 are bent by the force received when the wood fiber board P is divided. Therefore, if the distance between the tips of the opposing piercing bodies 3 and 4 is not at least about 1 mm, the opposing piercing bodies 3 and 4 come into contact with each other while rotating, and the piercing bodies 3 and 4 are damaged. The force from 2 is not transmitted from the piercing bodies 3 and 4 to the wood fiber board P, and there is a problem that it becomes impossible to divide.
However, when the distance between the tips of the piercing bodies 3 and 4 facing each other is about 1 mm as described above, the piercing body is sufficiently deep from the surface in the case of a relatively thin plate-like body having a thickness of 1.5 mm, for example. In the case of a plate-like body that is difficult to divide due to the fact that it is difficult to divide, it is difficult to divide it because it cannot be pierced to a sufficient depth.
Of course, if the piercing rolls 5 and 6 are arranged in a state shifted in the axial center line direction of the drive shafts 1 and 2 instead of facing each other, the above problem is eliminated. However, in order to improve the surface divided as described above, the regulating members 7 and 8 provided at the opposite positions on the front and back sides of the wood fiber board P immediately before being divided by the dividing blade 9. It is necessary to press the wood fiber board P in the thickness direction from the front and back surfaces by the front end surfaces 7a and 8a. If the wood fiber board P is disposed in a state shifted in the axial center line direction, this pressing cannot be performed sufficiently. As a result, the unevenness of the divided surface is large, and the commercial value when bonded to another plate material is lowered.
[0008]
[Means for Solving the Problems]
In order to solve the above-mentioned problems, the present invention provides a pair of parallel rotary shafts that are rotationally driven in different directions by a drive source, and the relationship between the two rotary shafts is spaced in the axial center line direction of each rotary shaft. Positions arranged between a number of piercing rolls fixed around each other and having piercing bodies around them, and adjacent piercing rolls fixed to the respective rotating shafts, and facing each other in relation to both rotating shafts The pressing member fixed to the blade, the cutting tool provided with the cutting edge facing the loading side in the rotational direction, and the rotation trajectory of the tip of the piercing body of the puncture roll In the plate-like body dividing apparatus comprising a peeling member having a surface, the opposite ends of the piercing bodies are formed so as to be displaced from each other in the axial center line direction of the rotating shaft.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
Next, an embodiment of the present invention will be described.
The embodiment of the present invention is shown in FIGS. 1 and 2, but in the conventional apparatus described above, the members except for the piercing bodies 3 and 4 and the piercing rolls 5 and 6 are arranged in the same manner. The same reference numerals are used, and description of these members is omitted.
In addition, as described in FIG. 11 of the conventional apparatus, the regulating members 7 and 8 also have a distance between the corner portions 7b and 8b corresponding to 90% of the thickness of the plate-like body to be divided. And the split blade 9 is positioned on a horizontal imaginary line passing through a point where the cutting edge of the split blade 9 bisects the upper and lower virtual lines connecting the corners 7b and 8b (not shown) To fix.
The piercing bodies 21 and 22 and the piercing rolls 23 and 24 in the present embodiment are explanatory views in a direction of an arrow in a cross section taken along a one-dot chain line XX in FIG. 1 and FIG. 2, FIG. 3 is an enlarged explanatory view of a portion surrounded by a circle B in FIG. 2, FIG. 4 is an enlarged explanatory view in a state in which the direction of the arrow is viewed in a cross section taken along the alternate long and short dash line YY in FIG. It is formed as shown in FIG. 5 which is an enlarged explanatory view of a portion surrounded by A. However, the enlargement ratios of FIGS. 3 and 4 with respect to FIGS. 1 and 2 are the same, and FIG. 5 further shows the enlargement ratio as large.
[0010]
That is, both the piercing rolls 23 and 24 have a diameter of 135 mm and a thickness of 2 mm when each piercing body is included. The piercing body 21 formed around the piercing roll 23 has a vertical surface in FIGS. 3 and 4, that is, a surface 21 a extending in the radial direction of the drive shaft 1 and a surface that intersects the surface 21 a at 20 degrees. The piercing body 22 is also formed around the piercing roll 24, and the surface 22a extending in the radial direction of the drive shaft 2 is parallel to the surface 21b and intersects the surface 22a at 20 degrees. It is comprised by the surface 22b to carry out.
In FIG. 5, the height H in the radial direction of the piercing roll 23 of the piercing body 21 is 2.5 mm, the angle Z is about 30 degrees, and the piercing roll 23 is formed at intervals of about 5 mm in the rotation direction. 24 piercing bodies 22 are formed in the same manner.
Further, in the piercing bodies 21 and 22 that face each other, the tips 21c and 22c of the piercing bodies 21 and 22 that face each other are driven by disposing the faces 21b and 22b so as to face each other in FIG. It is configured to be in a position shifted in the axial center line direction of the shaft 1 or 2, that is, in the left-right direction in FIG. 3.
On the other hand, the tips of the piercing bodies 21 and 22 are provided so as to overlap each other by 0.7 mm in the vertical direction of FIG. That is, in FIG. 3, the distance L between the horizontal imaginary line passing through the tip 21c of the opposite piercing body 21 and the horizontal imaginary line passing through the tip 22c of the piercing body 22 indicated by two arrows is 0.7 mm. The piercing rolls 23 and 24 are fixed to the drive shafts 1 and 2, respectively.
The piercing rolls 23 and 24 are also provided with locking portions 23a and 24a, which are attached to the drive shafts 1 and 2 while being inserted into the grooves 1a and 2a, as in the conventional device.
[0011]
In the dividing apparatus as described above, as shown by a two-dot chain line in FIG. 1, for example, a wood fiber board S having a thickness of 2,7 mm is placed on the carry-in conveyor 12.
Therefore, the wood fiber board S is conveyed by the carry-in conveyor 12 in the direction of the arrow, and then the piercing bodies 21 and 22 of the rotating stab rolls 23 and 24 are pierced on the front and back surfaces of the wood fiber board S. Continue to be transported. Next, the wood fiber board S is pressurized in the thickness direction by the surfaces 7a and 8a of the regulating members 7 and 8, and the center position of the wood fiber board S in the thickness direction contacts the split blade 9 in this state. Then, as shown in FIG. 1, two wood fiber boards Sa and Sb which are continuously divided up and down and have substantially the same thickness are obtained.
[0012]
In this division, the piercing bodies 21 and 22 are pierced deeper than the center in the thickness direction of the wood fiber board S as shown in FIG. 3, but as shown in FIG. 2 and FIG. The tips 21c and 22c between the two 21 and 22 are located at positions shifted in the axial center line direction of the drive shaft 1 or 2, and the trajectories that rotate with each other are different, so that they do not hit each other and are not damaged.
Also, even if an abnormal force is applied during the division and the tip of the piercing body 21 or 22 is bent in the left-right direction in FIG. The tip 21c of the piercing body 21 and the tip 22c of the piercing body 22 do not almost hit each other.
On the other hand, the regulating members 7 and 8 pressurize the wood fiber board S at positions facing each other across the wood fiber board S. Therefore, when the regulation members 7 and 8 press in a state of being offset with the wood fiber board S interposed therebetween. Since the pressure can be effectively applied in comparison, the divided surfaces of the wood fiber boards Sa and Sb divided by the dividing blade 9 are good surfaces with less unevenness.
These divided wood fiber boards Sa and Sb are sequentially peeled off from the piercing bodies 21 and 22 by the surfaces 10a and 11a of the peeling members 10 and 11 and transferred to the carry-out conveyors 13 and 14 in the same manner as the conventional device. It is conveyed to the process.
The wood fiber boards Sa and Sb obtained in this way, for example, those obtained by dividing MDF, are bonded to the surface of the plywood and further bonded with a veneer and a vinyl chloride resin sheet on the bonded MDF. Used for building flooring and interior materials.
[0013]
Although the embodiment of the present invention has been described above, it may be modified as follows.
1 and 3, the angle at which the surface 21 a and the surface 21 b of the piercing body 21 intersect may be about 10 degrees to 30 degrees. The same applies to the piercing body 22.
2. The angle Z of the tip of the piercing body 21 shown in FIG. 5 may be about 20 to 50 degrees.
3. The shapes of the opposed piercing bodies in the cross section shown in FIG. 3 do not necessarily have to be the same, and the points of the opposed piercing bodies are shifted in the axial center line direction of the drive shaft. As shown in FIG. 6, the angle formed by the surfaces 25a and 25b of the piercing body 25 is larger than the angle formed by the surfaces 22a and 22b of the piercing body 22, and the tip 25c And the tip 22c may be shifted from each other in the axial center line direction.
4. The shape of the piercing body in the cross section shown in FIG. 3 may be a piercing body 26 in which the surface 26b is constituted by a curve instead of a straight line as shown in FIG. The piercing body 27 having the two surfaces 27a and 27b may be used. Also in this case, the distal end 26c and the distal end 27c are configured to be displaced from each other in the axial center line direction.
5, the tips of the piercing bodies 21 and 22 shown in FIG. 4 are sharp, but as shown in FIG. 8 corresponding to an enlarged explanatory view of a circle D in FIG. For example, the width in the left-right direction may be about 0.5 mm.
6. In the present invention, the positions in the opposing direction of the tips of the opposing piercing bodies, that is, the vertical positions in FIG. 3, may be in a state where the tips are spaced apart. Even in this state, even if both ends approach due to the drive shaft being bent by an abnormal force, the piercing bodies do not hit each other.
7. When dividing the plate-like body, the position of the cutting edge of the divided blade is fixed to a state shifted to one side from the center in the thickness direction of the plate-like body instead of being equally divided in the thickness direction, and the thicknesses are different. Two plate-like bodies may be obtained.
8. As the pressing member, in addition to the bar-shaped regulating members 7 and 8 in the above-described embodiment, in order to reduce the frictional force, rotation that is rotatably supported by a bearing at a location where the plate-like body is pressed The body may be used.
[0014]
【The invention's effect】
As described above, according to the dividing device of the present invention, the piercing bodies 21 and 22 are sufficiently pierced into the plate-like body and divided even if the plate-like body is relatively thin or the material is hard. In addition, the piercing bodies 21 and 22 facing each other do not hit each other during the division and are not damaged.
[Brief description of the drawings]
FIG. 1 is an explanatory side view of an embodiment of the invention.
2 is an explanatory diagram in the direction of an arrow in a cross section taken along one-dot chain line XX in FIG. 1. FIG.
FIG. 3 is an enlarged explanatory view of a portion surrounded by a circle B in FIG. 2;
4 is an enlarged explanatory view of a state seen in the direction of the arrow in the cross section taken along the alternate long and short dash line YY in FIG. 1;
FIG. 5 is an enlarged explanatory view of a portion surrounded by a circle A in FIG. 1;
FIG. 6 is an explanatory diagram of a modification example of a piercing body.
FIG. 7 is an explanatory diagram of a modification example of a piercing body.
8 is a diagram corresponding to an enlarged explanatory diagram of a circle D in FIG. 4;
FIG. 9 is an explanatory side view of a conventional device.
10 is an explanatory diagram in the direction of an arrow in a cross section taken along one-dot chain line EE in FIG. 9;
11 is a partially enlarged explanatory view of a portion of a circle F in FIG.
[Explanation of symbols]
1 .. Drive shaft 2 .. Drive shaft 7. Restricting member 8. Restricting member 9. Split blade 10 Peeling member 21 Peeling member 21 C Piercing tip 22. Piercing body 22C ··· Tip 23 ·· Piercing roll 24 · · Piercing roll S · · Wood fiberboard P · · Wood fiberboard

Claims

駆動源により互いに異なる方向に回転駆動される一対の平行な回転軸と、
各々の回転軸の軸中心線方向に間隔を置き且つ両回転軸の関係では相対向する位置に固定された、周囲に突刺体を備えた多数の突刺ロールと、
各々の回転軸に固定された隣り合う突刺ロールの間に配置され且つ両回転軸の関係では相対向する位置に固定された押圧部材と、
該突刺ロールの回転方向搬出側に、刃先を該回転方向の搬入側に向けて備えられた刃物と、
該突刺ロールの、突刺体の先端の回転軌跡と交差する面を有するはがし部材とからなる板状体の分割装置において、
前記相対向する突刺体同士の先端が、前記回転軸の軸中心線方向でずれた位置にあるように形成されている板状体の分割装置。A pair of parallel rotating shafts that are rotationally driven in different directions by a drive source;
A number of piercing rolls provided with piercing bodies around them, spaced apart in the axial center line direction of each rotating shaft and fixed at opposite positions in relation to both rotating shafts;
A pressing member disposed between adjacent piercing rolls fixed to each rotating shaft and fixed at a position facing each other in relation to both rotating shafts;
A blade provided on the carrying-out side in the rotational direction of the piercing roll with the cutting edge facing the carrying-in side in the rotational direction; and
In the plate-like body splitting device comprising a peeling member having a surface that intersects the rotation trajectory of the tip of the piercing body of the piercing roll,
A plate-like body dividing device formed such that the tips of the opposing piercing bodies are located at positions shifted in the axial center line direction of the rotation shaft.