JP4241293B2 - Metal strip side trimmer equipment - Google Patents

Metal strip side trimmer equipment Download PDF

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JP4241293B2
JP4241293B2 JP2003335126A JP2003335126A JP4241293B2 JP 4241293 B2 JP4241293 B2 JP 4241293B2 JP 2003335126 A JP2003335126 A JP 2003335126A JP 2003335126 A JP2003335126 A JP 2003335126A JP 4241293 B2 JP4241293 B2 JP 4241293B2
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trim
shooter
metal strip
wall portion
flat wall
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JP2005096050A (en
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裕 渡辺
方志 中川
宏 大島
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JFE Steel Corp
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Description

本発明は金属帯のサイドトリマー装置に関するものである。   The present invention relates to a metal strip side trimmer device.

金属サイドトリマー装置は、金属帯の両端縁部を、夫々上下一対の回転丸刃により切除して金属帯の幅を所定幅に仕上げると共に、切除したトリム屑を前記回転丸刃の出側に設けたシューター内に案内して送り出し、チョッパー装置に案内して切断又は巻取装置に案内して巻取るようになっている。所定幅にトリムされた金属帯は、金属帯送出側に搬送され、必要に応じて所要の処理が施され、巻取装置でコイルに巻取られる。   The metal side trimmer device cuts off both end edges of the metal band with a pair of upper and lower rotating round blades to finish the width of the metal band to a predetermined width, and provides trimmed scraps on the exit side of the rotating round blade. The shooter is guided and sent out, guided to a chopper device, guided to a cutting or winding device, and wound up. The metal strip trimmed to a predetermined width is transported to the metal strip delivery side, subjected to necessary processing as required, and wound on a coil by a winding device.

しかし、金属帯のトリミング開始直後は、トリム屑がシューター開口部に進入しないで金属帯送出側に逸脱したり、トリム屑の先端がシューター入口に接触して先折れになってシューター内に送り出されたりする。トリム屑が金属帯送出側に逸脱すると、金属帯製品の品質を悪化させるばかりでなく、後方のテーブルロール等に巻付き、ライン停止等により生産性低下を招く。また、先折れした状態のトリム屑がシューター内を案内されて送り出されると、チョッパー装置のチョッパーと接触して屑詰まりになり、ライン停止等により生産性低下を招く。トリム作業時に前記のトラブルが発生したコイルは、検査等のために再作業を行う必要があり、そのためのコスト増加や生産性低下の問題がある。厚物鋼帯、高強度鋼帯のように腰の強い金属材料では、前記問題がさらに顕著になる。   However, immediately after the start of trimming of the metal strip, the trim scrap does not enter the shooter opening and deviates to the metal strip feed side, or the tip of the trim scrap comes into contact with the shooter inlet and is bent forward and sent into the shooter. Or When the trim scraps deviate to the metal strip delivery side, not only the quality of the metal strip product is deteriorated, but also the product is wound around the rear table roll or the like, and the productivity is lowered due to the line stop or the like. Further, when trimmed scraps that have been bent forward are guided through the shooter and are sent out, they come into contact with the chopper of the chopper device and become clogged, leading to a decrease in productivity due to line stoppage or the like. The coil in which the above trouble has occurred during the trim work needs to be reworked for inspection or the like, and there is a problem of an increase in cost and a decrease in productivity. The above-mentioned problem becomes more remarkable in the case of a strong metal material such as a thick steel strip or a high strength steel strip.

かかる問題点を改善するために、回転丸刃の送出側直後に、下方に向かって傾斜を付した、下方に凹状をなすトリム屑との接触面を有するガイドを設けることが提案されている（例えば、特許文献１参照）。   In order to improve such a problem, it has been proposed to provide a guide having a contact surface with a downwardly-trimmed trim scrap that is inclined downward immediately after the delivery side of the rotary round blade ( For example, see Patent Document 1).

以下に、先行技術文献情報について記載する。
特開平９−１６８９１６号公報 The prior art document information will be described below.
Japanese Patent Laid-Open No. 9-168916

トリム屑の先端部分は、平坦でなく、幾分反った形状になりやすい。そのため、厚物鋼帯、高強度鋼帯のように腰の強い金属材料では、トリム屑の先端部分が下方に凹状をなすガイドの傾斜面に衝突し、トリム屑が斜め横方向に走行して下方に凹状をなすガイドの外に逸脱し易く、トリム屑先端がシューター入り口で先折れになったり、トリム屑の金属帯送出側へ逸脱する問題が起こる。従って、特許文献１で提案されるガイドを用いても前述の問題点を改善する効果は依然として不十分である。   The tip portion of the trim scraps is not flat and tends to be somewhat warped. For this reason, in metal materials that are stiff, such as thick steel strips and high-strength steel strips, the tip of the trim debris collides with the inclined surface of the guide that is concave downward, and the trim debris travels diagonally in the lateral direction. It tends to deviate out of a guide that is concave downward, and the tip of the trim debris is bent forward at the entrance of the shooter, or the debris deviates to the metal band feeding side of the trim debris. Therefore, even if the guide proposed in Patent Document 1 is used, the effect of improving the above-described problems is still insufficient.

本発明は、前記問題点を解決し、厚物鋼帯、高強度鋼帯のように腰の強い金属材料であっても、トリム屑が金属帯送出側に逸脱することを防止して金属帯製品の品質を悪化させることを防止し、またトリム屑の先折れを防止してシューター内に円滑に案内して、チョッパー装置や巻取り装置に排出し、チョッパー装置や巻取り装置での屑詰まりに起因する生産性低下を防止できる金属帯のサイドトリマー装置を提供することを目的とする。   The present invention solves the above problems and prevents the trim scraps from deviating to the metal strip feeding side even if the metal material is strong such as thick steel strip and high strength steel strip. Prevents the product quality from deteriorating, prevents the tipping of trim debris, smoothly guides it into the shooter, discharges it to the chopper device and take-up device, and clogs with the chopper device and take-up device An object of the present invention is to provide a metal strip side trimmer device capable of preventing a decrease in productivity due to.

上記課題を解決する本発明の手段は、次のとおりである。
（１）金属帯の両端縁部を、夫々上下一対の回転丸刃で切除して金属帯の幅を所定幅に仕上げると共に、切除したトリム屑を前記回転丸刃の出側に設けたシューター内に案内して下方に送り出し、送り出されたトリム屑をチョッパー装置に案内して切断又は巻取装置に案内して巻取るようにしたサイドトリマー装置において、
前記シューターは、前記回転丸刃側の前記金属帯端縁部通板部分の壁部、又は前記回転丸刃側の前記金属帯端縁部通板部分及び前記金属帯端縁部上方部分の壁部に切欠部を有するとともに、前記切欠部を除き、金属帯端縁部の上下及び端部側方を覆う壁部を有するように筒状に形成され、前記シューターの前記トリム屑案内部の上部壁は、前記トリム屑に下向きの力を加えて進行方向を下向きに変向させる、トリム屑案内方向に傾斜した平坦状に形成され、該平坦状壁部は金属帯端部近傍で上方に屈曲して形成された略鉛直状壁部を有することを特徴とするサイドトリマー装置。 Means of the present invention for solving the above-mentioned problems are as follows.
(1) The both ends of the metal strip are cut with a pair of upper and lower rotary round blades to finish the width of the metal strip to a predetermined width, and the trimmed scraps are provided on the exit side of the rotary round blade. In the side trimmer device that guides to the lower part, guides the trim scraps sent out to the chopper device, guides it to the cutting or winding device, and winds it up,
The Shooter, walls, or the rotary circular front Symbol metal strip edges through plate portion of the blade side and the metal strip edge upper portion of the front Symbol metal strip edges through plate portion of the rotary circular blade side The trim scrap guide portion of the shooter is formed in a cylindrical shape so as to have a wall portion that covers the top and bottom of the metal band edge portion and the side of the end portion, excluding the notch portion. The upper wall is formed in a flat shape inclined in the trim scrap guiding direction by applying a downward force to the trim scrap to change the traveling direction downward, and the flat wall portion is located above the end of the metal strip. A side trimmer device having a substantially vertical wall portion formed by bending to a side.

（２）前記平坦状壁部は、前記回転丸刃側端部が前記回転丸刃に近接してパスラインより上に設けられるとともに、前記切欠部の切欠先端部よりも上流でパスラインより低くなるように形成されることを特徴とする（１）に記載のサイドトリマー装置。 (2) the flat wall portion, the rotary circular blade side end portion is provided above the pass line in proximity to the rotary circular blade Rutotomoni, from the cut portion of the notch tip pass line upstream than portion The side trimmer device according to (1), which is formed to be low.

（３）前記平坦状壁部の前記回転丸刃側端部と前記回転丸刃中心軸との水平距離をａ、前記平坦状壁部の前記回転丸刃側端部のパスラインからの高さをｂ、前記平坦状壁部の水平面に対する傾斜角度をθとした場合、前記ａ、ｂ、θは、ａ≦５０ｍｍ、ｂ≧０ｍｍ且つθ：５〜４０度を満足することを特徴とする（１）又は（２）に記載のサイドトリマー装置。 (3) The horizontal distance between the rotating round blade side end of the flat wall portion and the central axis of the rotating round blade is a, and the height from the pass line of the rotating round blade side end of the flat wall portion. the b, when the inclination angle with respect to the horizontal plane of the flat wall portion and theta, wherein a, b, θ is, a ≦ 50mm, b ≧ 0mm and theta: and satisfies the 5-40 ° ( The side trimmer device according to 1) or (2).

本発明によれば、厚物鋼帯、高強度鋼帯のように腰の強い金属材料であっても、金属帯のトリミング開始直後等に排出されるトリム屑を、先折れさせることなく、シューター内に円滑に案内し、チョッパー装置や巻取り装置に排出でき、トリム屑の金属帯送出側に逸脱することによる金属帯の品質低を防止できる。   According to the present invention, even if it is a stiff metal material such as a thick steel strip or a high-strength steel strip, a shooter can be used without causing the trim scraps discharged immediately after the start of trimming of the metal strip to be bent. It can be smoothly guided in and discharged to a chopper device or a take-up device, and the quality of the metal strip can be prevented from deteriorating due to the deviation of the trim scrap to the metal strip delivery side.

本発明によれば、トリム屑の切断片がシューター内で引っかかることがないので、これに起因して発生するスリ疵等の金属帯の品質低下を防止できる。   According to the present invention, since the trim pieces are not caught in the shooter, it is possible to prevent deterioration of the quality of the metal strip such as the soot generated due to this.

本発明によれば、金属帯を高速でトリミングしても、金属帯のトリミング開始直後等に排出されるトリム屑を、先折れさせることなく、シューター内に円滑に案内し、チョッパー装置や巻取り装置に排出でき、トリム屑の金属帯送出側に逸脱することによる金属帯の品質低を防止できる。   According to the present invention, even if the metal strip is trimmed at a high speed, trim waste discharged immediately after the start of trimming of the metal strip is smoothly guided into the shooter without being bent forward, and the chopper device or winding It can be discharged into the device, and the quality of the metal strip can be prevented from being deteriorated due to deviation from the trim scrap to the metal strip delivery side.

前記の結果、本発明によれば、トリム屑処理のためのライン停止やトリム屑処理トラブルが発生したコイルの再検査作業等による生産性の低下を防止できる。   As a result, according to the present invention, it is possible to prevent a decrease in productivity due to a line stop for trim scrap disposal or a re-inspection operation of a coil in which a trim scrap disposal trouble has occurred.

以下、本発明の実施の形態について図面を参照して説明する。なお、以下の説明で、上流側は、それぞれ金属帯通板方向又はトリム屑案内方向を基準とし、それに対する上流側を指している。   Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the following description, the upstream side refers to the upstream side relative to the metal band passing plate direction or the trim scrap guide direction.

図１は、本発明の実施の形態に係るサイドトリマー装置の要部を示す断面模式図である。図１において、１ａ、１ｂは各々上下の回転丸刃、２はシューター、３ａはシューター２の平坦状壁部、４はチョッパー装置前トリム屑ガイド、５はチョッパー装置で、上下チョッパー５ａ、５ｂを備える。６は金属帯、６ａはトリム後の金属帯、６ｂはトリム屑である。   FIG. 1 is a schematic cross-sectional view showing a main part of a side trimmer device according to an embodiment of the present invention. In FIG. 1, 1a and 1b are upper and lower rotary round blades, 2 is a shooter, 3a is a flat wall portion of the shooter 2, 4 is a chopper device front trim scrap guide, 5 is a chopper device, and upper and lower choppers 5a and 5b are connected. Prepare. 6 is a metal strip, 6a is a trimmed metal strip, and 6b is trim scraps.

図２は、本発明の実施の形態に係るシュータ−の構造を説明する図で、（ａ）は上下の回転丸刃１ａ、１ｂ出側（金属帯送出側）及びシューター２の回転丸刃側の開口部近傍部分を金属帯幅方向中央部側から見た概略側面図、（ｂ）は（ａ）の概略側面図において平坦状壁部３ａを含む部分の紙面に平行な断面における概略断面図である。また、（ｃ）は（ａ）のＡ−Ａ断面図、（ｄ）は（ａ）のＢ−Ｂ断面図、（ｅ）は（ａ）のＣ−Ｃ断面図で、（ｃ）はトリム屑６ｂが平坦状壁部３ａに衝突する前の状態、（ｄ）はトリム屑６ｂが平坦状壁部３ａに衝突して進行方向を下方に変向させた状態、（ｅ）は金属帯６ａ端縁部がシューター２外に導出された状態を示す。   2A and 2B are diagrams for explaining the structure of the shooter according to the embodiment of the present invention. FIG. 2A shows the upper and lower rotary round blades 1a and 1b on the outlet side (metal band sending side) and the shooter 2 on the rotary round blade side. Schematic side view of the vicinity of the opening of the metal band width direction viewed from the center side of the metal band, (b) is a schematic sectional view in a section parallel to the paper surface of the portion including the flat wall portion 3a in the schematic side view of (a) It is. (C) is an AA cross-sectional view of (a), (d) is a BB cross-sectional view of (a), (e) is a CC cross-sectional view of (a), and (c) is a trim. The state before the scrap 6b collides with the flat wall portion 3a, (d) is the state where the trim scrap 6b collides with the flat wall portion 3a and changes the traveling direction downward, and (e) is the metal strip 6a. A state where the end edge portion is led out of the shooter 2 is shown.

シューター２は、金属帯６通板方向に斜め下方に傾斜して配設されている。シューター２の回転丸刃側の金属帯６ａ端縁部が通板される壁部に、前記シューター２内に導入されたトリム後の金属帯６ａ端縁部を前記シューター２外に導出するための切欠部７が形成されている。シューター２は前記切欠部を除き、金属帯６ａ端縁部の上下及び端部側方を覆う壁部を有するように筒状に形成されている。   The shooter 2 is disposed so as to be inclined obliquely downward in the direction of the metal strip 6 passing through. A metal band 6a end edge after trimming introduced into the shooter 2 is led out of the shooter 2 to a wall part through which the edge of the metal band 6a on the rotating round blade side of the shooter 2 passes. A notch 7 is formed. The shooter 2 is formed in a cylindrical shape so as to have a wall portion that covers the top and bottom of the edge of the metal strip 6a and the side of the end except for the notch.

切欠部７は、シューター２内に導入されたトリム後の金属帯６ａ端縁部が容易に導出でき、またその際に金属帯６ａ端縁部が切欠部７と接触して損傷を受けることを防止する観点から、水平方向から見たときに、切欠部７の上縁は、パスライン（金属帯通板面）に対して入側上方に傾斜状に形成され、その下縁はパスラインに対して入側下方に傾斜状に形成されている（すなわち、側面視略Ｖ型である）。また、切欠先端部９の鉛直方向位置はパスラインとほぼ同程度の位置であり、切欠先端部９の金属帯幅方向位置はトリム後の金属帯６ａ端縁部より外側に位置するように配置されている。 Notch 7 can metal strip 6a edge is easily derived after trimming introduced into the shooter 2, also the metal strip 6a edge is damaged in contact with the notch 7 in its When viewed from the horizontal direction, the upper edge of the notch 7 is formed to be inclined upward on the entry side with respect to the pass line (metal band plate surface), and its lower edge is the pass line. Are formed in an inclined shape on the lower side of the entry side (that is, substantially V-shaped in a side view). In addition, the vertical position of the notch tip 9 is approximately the same as the pass line, and the metal band width direction position of the notch tip 9 is disposed outside the edge of the trimmed metal band 6a. Has been.

また、前記シューター２の回転丸刃側のトリム屑案内部の上部壁部分は、前記トリム屑６ｂに下向きの力を加えて進行方向を下向きに変向させる、金属帯６ａ端縁部案内部の上部壁部分よりも鉛直方向位置が低い壁部を有するように形成されるとともに、該壁部は、前方（トリム屑案内方向）に傾斜した平坦状に形成され、該平坦状壁部３ａは金属帯端部近傍で上方に屈曲して形成された略鉛直状の壁部３ｂを有するように構成されている。   Further, the upper wall portion of the trim scrap guide portion on the rotating round blade side of the shooter 2 applies a downward force to the trim scrap 6b so as to change the traveling direction downward. The wall portion is formed so as to have a wall portion whose vertical position is lower than that of the upper wall portion, and the wall portion is formed in a flat shape inclined forward (trim waste guide direction), and the flat wall portion 3a is made of metal. It is configured to have a substantially vertical wall portion 3b formed by bending upward in the vicinity of the belt end portion.

平坦状壁部３ａは、回転丸刃側端部がパスライン（金属帯６ａ通板位置）より上方にあり、また上回転丸刃１ａに近接して配設される。また、トリム屑６ｂがシューター２外に逸脱することを防止し、またトリム屑６ｂが切欠部７の切欠先端部９に衝突して先折れになるのを防止するために、平坦状壁部３ａは切欠部７の切欠先端部９よりも上流でパスラインより低くなるように（すなわち平坦状壁部３ａは切欠先端部９より上流側でパスラインと交叉するように）金属帯通板方向に向かって斜め下方に傾斜して設けられている。平坦状壁部３ａはその下面が平坦に形成されており、金属帯幅方向断面視では平坦状壁部３ａ下面は略水平である。   The flat wall portion 3a has the end portion on the rotating round blade side above the pass line (the position where the metal strip 6a passes), and is disposed close to the upper rotating round blade 1a. Further, in order to prevent the trim debris 6b from deviating out of the shooter 2 and to prevent the trim debris 6b from colliding with the notch tip portion 9 of the notch portion 7 to be bent forward, the flat wall portion 3a. Is lower than the pass line upstream of the notch tip 9 of the notch 7 (that is, the flat wall portion 3a crosses the pass line upstream of the notch tip 9) in the direction of the metal strip. It is inclined obliquely downward. The lower surface of the flat wall portion 3a is formed flat, and the lower surface of the flat wall portion 3a is substantially horizontal in a sectional view in the metal band width direction.

トリミング開始時のトリム屑６ｂの先折れを防止する観点からは、平坦状壁部３ａの回転丸刃側端部と回転丸刃中心軸との水平距離をａ、平坦状壁部３ａの回転丸刃側端部とパスラインからの高さをｂ、該平坦状壁部３ａの水平面に対する傾斜角度をθとした場合（図３参照）、ａ≦５０ｍｍ、ｂ≧０ｍｍ且つθ：５〜４０度を満足するように配設することが好ましい。   From the standpoint of preventing the tipping of the trim scrap 6b at the start of trimming, the horizontal distance between the rotating round blade side end of the flat wall portion 3a and the central axis of the rotating round blade is a, and the rotating circle of the flat wall portion 3a is When the height from the blade end and the pass line is b, and the inclination angle of the flat wall 3a with respect to the horizontal plane is θ (see FIG. 3), a ≦ 50 mm, b ≧ 0 mm and θ: 5 to 40 degrees It is preferable to arrange so as to satisfy the above.

寸法ａを５０ｍｍ以下に限定したのは、寸法ａが５０ｍｍ超になると平坦状壁部３ａによるトリム屑案内方向を変向する効果が低下するためである（但し、ａ＞０ｍｍ）。寸法ｂを０ｍｍ以上に限定したのは、寸法ｂを０ｍｍ未満にすると、トリム屑を平坦状壁部３ａの下面に接触させることができなくなり、厚物材や高強度材のトリム屑を平坦状壁部３ａで変向できなくなるため、トリム屑の先折れを防止する効果が少なくなるためである。寸法ｂは１０ｍｍ以上とすることがより好ましい。   The reason why the dimension a is limited to 50 mm or less is that when the dimension a exceeds 50 mm, the effect of changing the trim scrap guiding direction by the flat wall portion 3a is reduced (provided that a> 0 mm). The reason why the dimension b is limited to 0 mm or more is that when the dimension b is less than 0 mm, the trim debris cannot be brought into contact with the lower surface of the flat wall portion 3a, and the trim debris of a thick material or high-strength material is flat. This is because the wall portion 3a cannot change the direction, and the effect of preventing the trim scraps from being bent is reduced. The dimension b is more preferably 10 mm or more.

角度θを５〜４０度に限定したのは、図４に示すように、５度未満ではトリム屑を変向する効果が少ないため切欠部７に衝突して先折れが発生し、４０度超になると、平坦状壁部３ａに衝突したときに先折れが発生し、いずれもチョッパー装置でのトリム屑の詰まりの発生率が増加するためである。図４中、屑詰まり発生率は、装入したコイル数に対して、トリム屑の先折れによってチョッパー装置５で切断されず、チョッパー装置５前でトリム屑詰まりが発生したコイル数の割合である。   As shown in FIG. 4, the angle θ is limited to 5 to 40 degrees. If the angle θ is less than 5 degrees, the effect of turning trim debris is small. Then, when it collides with the flat wall portion 3a, the front bend occurs, and in all cases, the occurrence rate of clogging of trim debris in the chopper device increases. In FIG. 4, the clogging rate is the ratio of the number of coils in which trim clogging is generated in front of the chopper device 5 without being cut by the chopper device 5 due to the bending of the trim waste with respect to the number of inserted coils. .

シューター２の前記以外の部分と回転丸刃との間隔は、平坦状壁部３ａで変向されたトリム屑６ｂや幾分下方に垂れ下がり気味になる薄物サイズのトリム屑６ｂがシューター２外に逸脱することを防止し、シューター２内に導入できる程度の適宜の間隔にすればよい。   The space between the other portion of the shooter 2 and the rotating round blade is such that the trim scrap 6b turned by the flat wall 3a or the trim scrap 6b having a thin size that slightly falls down and deviates outside the shooter 2. It is only necessary to set an appropriate interval so that it can be introduced into the shooter 2.

シューター２の金属帯幅方向位置は、トリム後の金属帯６ａ端縁部とトリム屑６ｂがシューター２の回転丸刃側の開口部からシューター２内に導入されるように配置され、さらに鉛直状壁部３ｂとトリム後の金属帯６ａ端部が接触して金属帯６ａ端部を傷つけることがないように、図２（ｃ）に示すように、鉛直状壁部３ｂはトリム後の金属帯６ａの端部より外側に位置するように配置される。   The metal band width direction position of the shooter 2 is arranged such that the trimmed metal band 6a edge and trim scrap 6b are introduced into the shooter 2 from the opening on the rotating round blade side of the shooter 2, and further the vertical shape As shown in FIG. 2 (c), the vertical wall 3b is a trimmed metal band so that the wall 3b and the end of the trimmed metal band 6a do not contact and damage the end of the metal band 6a. It arrange | positions so that it may be located outside the edge part of 6a.

なお、シューター２は図示されていない架台に取り付けられており、該架台は、サイドトリマー装置の回転丸刃を金属帯幅方向に移動すると、それと同調して金属帯幅方向に移動可能に構成されている。また、前記架台は、シューター２の平坦状壁部３ａ先端の水平方向位置（金属帯通板方向位置）及び鉛直方向位置を調整するために、水平方向及び鉛直方向位置を調整可能に構成されている。   The shooter 2 is attached to a gantry (not shown), and the gantry is configured to move in the metal band width direction in synchronization with the rotation of the rotating round blade of the side trimmer device in the metal band width direction. ing. Further, the gantry is configured to be able to adjust the horizontal and vertical positions in order to adjust the horizontal position (metal band passing plate position) and the vertical position of the tip of the flat wall portion 3a of the shooter 2. Yes.

次に、本発明の作用を図２と図５を参照して説明する。   Next, the operation of the present invention will be described with reference to FIGS.

図５は、切欠部７のみを備えるシューター２の構造を説明する図で、（ａ）は金属帯幅方向中央側のやや斜め上方からみた回転丸刃１ａ、１ｂ出側及びシューター２の金属帯導入部側近傍（回転丸刃側の開口部近傍）の構造を示す概略斜視図、（ｂ）は（ａ）で薄物材をトリムする場合のトリム屑が案内される状態を説明する概略斜視図、（ｃ）は（ａ）で厚物材をトリムする場合のトリム屑が案内される状態を説明する概略斜視図である。なお、図５（ｂ）、（ｃ）において、金属帯６およびトリム後の金属帯６ａの下方にある回転丸刃１ｂについては、本来破線で示すべきであるが、本図では実線で示してある。   FIG. 5 is a view for explaining the structure of the shooter 2 having only the notch 7. FIG. 5 (a) shows the rotating round blades 1 a, 1 b exit side and the metal band of the shooter 2 as viewed from slightly above the center side in the metal band width direction. Schematic perspective view showing the structure in the vicinity of the introduction portion side (near the opening on the rotating round blade side), (b) is a schematic perspective view for explaining the state in which trim waste is guided when trimming a thin material in (a). (C) is a schematic perspective view explaining the state in which the trim waste in the case of trimming a thick material in (a) is guided. 5 (b) and 5 (c), the rotating round blade 1b below the metal strip 6 and the trimmed metal strip 6a should be originally shown by a broken line, but in this figure it is shown by a solid line. is there.

図５では、（ａ）に示すように、シューター２には、金属帯６ａ端縁部導入部側（回転丸刃側の開口部側）に側面視略Ｖ型切欠部７が形成されている。金属帯６は、回転丸刃１ａ、１ｂによって、所定幅にトリムされ、トリム後の金属帯６ａ端縁部とトリム屑６ｂは、ともにシューター２内に導入される。トリム後の金属帯６ａ端縁部は、その端縁部が前記略Ｖ型切欠部７を通ってシューター２外に導出され、さらに金属帯送出側に搬送される。   In FIG. 5, as shown in FIG. 5A, the shooter 2 is formed with a substantially V-shaped notch portion 7 in a side view on the metal band 6 a end edge introduction portion side (opening side on the rotating round blade side). . The metal strip 6 is trimmed to a predetermined width by the rotating round blades 1 a and 1 b, and the trimmed metal strip 6 a edge and trim scrap 6 b are both introduced into the shooter 2. The edge of the trimmed metal band 6a is led out of the shooter 2 through the substantially V-shaped notch 7 and further conveyed to the metal band feed side.

金属帯が薄物サイズの場合、金属帯のトリミング開始直後において、トリム屑６ｂの先端は幾分垂れ下がり気味になり、またシューター２内壁に当たった際に案内方向が容易に変向するので、図５（ｂ）に示すようにトリム屑６ｂはシューター２内に円滑に案内され、シューター２から送り出されてチョッパー装置５で切断される。これに対して、厚物鋼帯、高強度鋼帯のように腰の強い金属材料では、トリム屑６ｂ先端の垂れ下がりが少なく、図５（ｃ）に示すように、トリム屑６ｂ先端がシューター２の略Ｖ型切欠部７の切欠先端側（図５（ｃ）中、Ａ部）に衝突して、トリム屑６ｂの先端部分が折れ曲がって重なり、所謂先折れになる場合がある。先折れ部分は、チョッパー装置５で切断できないため、トリム屑６ｂがチョッパー装置５前でアコーデオン状になる。このような状態になるとライン停止してトリム屑６ｂの処理を行う必要がある。   When the metal band is thin, immediately after the trimming of the metal band starts, the tip of the trim scrap 6b is somewhat drooping, and the guide direction is easily changed when it hits the inner wall of the shooter 2. FIG. As shown in (b), the trim scrap 6 b is smoothly guided into the shooter 2, sent out from the shooter 2, and cut by the chopper device 5. On the other hand, with a strong metal material such as a thick steel strip or a high-strength steel strip, the tip of the trim scrap 6b hangs down little and the tip of the trim scrap 6b is at the shooter 2 as shown in FIG. May collide with the notch tip side of the substantially V-shaped notch portion 7 (A portion in FIG. 5C), and the tip portion of the trim scrap 6b may bend and overlap, resulting in a so-called bend. Since the first bent portion cannot be cut by the chopper device 5, the trim scrap 6 b becomes an accordion shape in front of the chopper device 5. In such a state, it is necessary to stop the line and process the trim scrap 6b.

これに対して、本発明の実施の形態に係るサイドトリマー装置で使用されるシューター２は図２のように構成されているので、シューター２内に導入されたトリム屑６ｂは、図２（ｄ）に示すように、トリム屑６ｂは前方に傾斜した平坦状壁部３ａ下面と接触する。平坦状壁部３ａ下面が平坦で前方に傾斜しているため、厚物鋼帯、高強度鋼帯のように腰の強い金属材料をトリミング開始したときにも、該トリム屑６ｂの先端が平坦状壁部３ａ下面に衝突して容易に下方に変向され、その際にトリム屑が斜め横方向に案内されることが防止されることで、トリム屑６ｂの先端がシューター２の略Ｖ型切欠部７の切欠先端部９に衝突することがなくなり、トリム屑６ｂの先折れの発生を防止できる。   On the other hand, since the shooter 2 used in the side trimmer device according to the embodiment of the present invention is configured as shown in FIG. 2, the trim scrap 6b introduced into the shooter 2 is shown in FIG. ), The trim scrap 6b comes into contact with the lower surface of the flat wall portion 3a inclined forward. Since the lower surface of the flat wall 3a is flat and inclined forward, the trim tip 6b is flat even when trimming of a stiff metal material such as a thick steel strip or a high strength steel strip is started. The tip of the trim scrap 6b is substantially V-shaped on the shooter 2 by preventing the trim scrap from being guided obliquely in the lateral direction by colliding with the lower surface of the wall 3a. It will not collide with the notch tip part 9 of the notch part 7, and generation | occurrence | production of the tip breakage of the trim waste 6b can be prevented.

シューターの構造を図２の構造に決定するまでの過程で、図６（ａ）に示すようにシューター２内部にトリム屑の進行方向を下方に変向させる変向部材１１を設けることや、図６（ｂ）に示すようにシューター２内部壁に接続してトリム屑の進行方向を下方に変向させる変向部材１２を設けることも検討した。これらは、トリム屑の先端部分やトリム屑の切断片が、変向部材１１又は変向部材１２の背面に回り込んで引っかかったり、変更部材１１、１２をシューター２の上部壁部に固定する部材（図示なし）に引っかかったりし、それに起因して金属帯製品の品質悪化やトリム屑のシューター２下方への案内不良による生産性低下の問題が発生し、図２に示す構造のシューターに比べて、トリム作業に起因する金属帯製品の品質悪化を防止する効果や生産性の低下を防止する効果は不充分であった。前述の問題点を防止するには、シューター内のトリム屑案内部分は、トリム屑の先端部分やトリム屑の切断片が引っかからないような構造にする必要のあることがわかった。   In the process until the structure of the shooter is determined to be the structure of FIG. 2, a turning member 11 for changing the traveling direction of the trim scraps downward is provided inside the shooter 2 as shown in FIG. As shown in FIG. 6B, it was also considered to provide a turning member 12 that is connected to the inner wall of the shooter 2 and changes the traveling direction of trim debris downward. These are members for fixing the change members 11 and 12 to the upper wall portion of the shooter 2 when the tip portion of trim waste or the cut pieces of trim waste wrap around the rear surface of the direction change member 11 or the direction change member 12. (Not shown in the figure), resulting in deterioration of the quality of the metal strip product and the problem of reduced productivity due to poor guidance of trim scraps below the shooter 2, compared to the shooter with the structure shown in FIG. In addition, the effect of preventing the deterioration of the quality of the metal strip product due to the trim work and the effect of preventing the decrease in productivity were insufficient. In order to prevent the above-mentioned problems, it has been found that the trim scrap guide portion in the shooter needs to be structured such that the tip portion of the trim scrap and the trim scraps are not caught.

図２に示したシューター２では、鉛直状壁部３ｂを備えて該鉛直状壁部３ｂと平坦状壁部３ａはシューター２の壁部の一部を構成するように一体的に構成されているので、前述の図６（ａ）、（ｂ）で発生した問題点を確実に解消できる。シューター２のトリム屑案内部分は、トリム屑の先端部分やトリム屑の切断片がシューター２内で引っかかることもない。また、該シューター２は金属帯６ａ端縁部下方の金属帯幅方向中央側にも壁部が形成されているので、トリム屑６ｂ先端部分が平坦状壁部３ａで変向された後、金属帯幅方向中央側に移動して、シューター２外に飛び出す問題も発生しない。   In the shooter 2 shown in FIG. 2, the vertical wall portion 3 b is provided, and the vertical wall portion 3 b and the flat wall portion 3 a are integrally configured to constitute a part of the wall portion of the shooter 2. Therefore, the problems occurring in the above-described FIGS. 6A and 6B can be surely solved. The trim scrap guide portion of the shooter 2 does not catch the tip of the trim scrap or the trim scrap cut piece inside the shooter 2. Further, since the shooter 2 is also formed with a wall portion at the center side in the metal band width direction below the edge of the metal band 6a, the tip of the trim scrap 6b is turned by the flat wall section 3a, The problem of moving to the center side in the band width direction and jumping out of the shooter 2 does not occur.

図２に示したシューター２では、平坦状壁部３ａと鉛直状壁部３ｂとを形成したことによって、トリム屑を確実に下方に変向させてシューター２下方に案内できるので、図７に示すように、鉛直状壁部３ｂと接続している金属帯端縁部上方部分に、シューター２の壁部を形成しない構造としても前記した効果を発現できる。   In the shooter 2 shown in FIG. 2, since the flat wall portion 3a and the vertical wall portion 3b are formed, the trim waste can be reliably turned downward and guided to the lower side of the shooter 2, so that it is shown in FIG. As described above, the above-described effects can be exhibited even when the wall portion of the shooter 2 is not formed in the upper portion of the metal band edge portion connected to the vertical wall portion 3b.

なお、前述の装置では、平坦状壁部３ａは、金属帯幅方向断面視で下面は略水平であったが、金属帯６ａ端部から離れると若干上方に傾斜するものであってもよい。また、切欠部の形状は図２及び図７に示したものに限定されない。適宜の形状を採用できる。   In the above-described apparatus, the flat wall portion 3a has a substantially horizontal lower surface in the metal band width direction sectional view, but may be slightly inclined upward from the end of the metal band 6a. Further, the shape of the notch is not limited to that shown in FIGS. An appropriate shape can be adopted.

本実施の形態に係るサイドトリマー装置において、金属帯６の幅方向両端縁部は、金属帯６の走行によって従動回転する回転丸刃１ａ、１ｂによってトリムされ、金属帯６の幅は所定幅に仕上げられる。トリム屑６ｂは、シューター２先端（回転丸刃側）の開口部からシューター２内に導入され、シューター２の平坦状壁部３ａによって下方に変向された後下方から排出され、チョッパー装置前トリム屑ガイド４内に案内され、チョッパー装置５で切断される。   In the side trimmer device according to the present embodiment, both end edges in the width direction of the metal strip 6 are trimmed by the rotating round blades 1a and 1b that are rotated by the travel of the metal strip 6, and the width of the metal strip 6 is set to a predetermined width. Finished. Trim waste 6b is introduced into the shooter 2 from the opening at the tip of the shooter 2 (rotating round blade side), is turned downward by the flat wall portion 3a of the shooter 2, and is then discharged from the lower side. Guided into the waste guide 4 and cut by the chopper device 5.

シューター２が前記のように構成されているので、厚物鋼帯、高強度鋼帯のような腰の強い金属帯であっても、トリム屑６ｂ先端が平坦状壁部３ａで確実に下方に変向されてシューター２内を案内され、切欠部に衝突することが防止され、トリム屑６ｂ先端の先折れの発生を防止できるので、トリム屑６ｂはシューター２から送り出されてチョッパー装置５で確実に切断される。また、トリム屑６ｂがシューター２から金属帯送出側に逸脱することも防止される。   Since the shooter 2 is configured as described above, even if it is a firm metal band such as a thick steel band or a high-strength steel band, the front end of the trim scrap 6b is reliably lowered by the flat wall portion 3a. Since it is deflected and guided in the shooter 2 and is prevented from colliding with the notch, it is possible to prevent the tip of the trim scrap 6b from being bent forward, so that the trim scrap 6b is fed out of the shooter 2 and reliably secured by the chopper device 5. Disconnected. Further, it is possible to prevent the trim scraps 6b from deviating from the shooter 2 to the metal band sending side.

本発明の実施の形態に係るサイドトリマー装置を用いることで、トリム屑が金属帯送出側に逸脱することに起因する金属帯製品の品質悪化、生産性の低下、及びトリム屑の先折れに起因してチョッパー装置が停止することで起こる生産性低下を防止できる。   Due to the use of the side trimmer device according to the embodiment of the present invention, the quality of the metal strip product is deteriorated due to the trim scrap deviating to the metal strip delivery side, the productivity is lowered, and the trim scrap is bent forward. Thus, it is possible to prevent a decrease in productivity that occurs when the chopper device stops.

金属帯の走行速度が高速化した場合にも、トリミング開始時に、トリム屑の先折れが発生しやすくなる。本発明に係るサイドトリマー装置は、金属帯の走行速度が高速化した場合にも先折れを防止する効果がある。   Even when the traveling speed of the metal strip is increased, trim scraps are likely to be bent at the start of trimming. The side trimmer device according to the present invention has an effect of preventing the forward bending even when the traveling speed of the metal strip is increased.

以上の実施の形態は、トリム屑をチョッパー装置に案内して切断する場合について説明したが、本発明は、トリム屑を巻取り装置に案内して巻き取るサイドトリマー装置にも適用できる。   Although the above embodiment demonstrated the case where trim waste was guided and cut | disconnected to a chopper apparatus, this invention is applicable also to the side trimmer apparatus which guides and winds trim waste to a winding device.

図１及び図２で説明した本発明の実施の形態に係るサイドトリマー装置を備える鋼板のコイリングラインで、厚さ０．４〜１．２ｍｍ×幅８００〜１８００ｍｍの種々の寸法、材質の鋼板をトリミングした場合のトリム成功率の推移を図８に示す。トリム成功率＝（トリム屑がトラブルなしにチョッパー装置で切断されたコイル数）／（装入コイル数）×１００（％）である。   In the coiling line of the steel plate provided with the side trimmer device according to the embodiment of the present invention described in FIG. 1 and FIG. 2, steel plates having various dimensions and materials of thickness 0.4 to 1.2 mm × width 800 to 1800 mm are used. FIG. 8 shows the transition of the trim success rate when trimming is performed. Trim success rate = (number of coils in which trim scraps were cut by the chopper device without any trouble) / (number of charged coils) × 100 (%).

なお、シューター２は略φ１００ｍｍの管体で構成され、切欠部の深さ（下回転丸刃側先端から切欠先端部９までの寸法）は略１００ｍｍ、寸法ａは略５０ｍｍ、ｂは１０ｍｍ、θは２０度である。シューター２の切欠先端部９の鉛直方向位置はほぼパスラインに位置するように配置され、平坦状壁部３ａは切欠先端部９の上流でパスラインと交叉するように設けられている。比較のために、切欠部のみを有するシューターを使用したサイドトリマー装置におけるトリム成功率の水準を図８中に記載した。   The shooter 2 is constituted by a tube having a diameter of approximately φ100 mm. The depth of the notch (the dimension from the tip of the lower rotary round blade side to the notch tip 9) is approximately 100 mm, the dimension a is approximately 50 mm, b is 10 mm, θ Is 20 degrees. The vertical position of the notch tip portion 9 of the shooter 2 is arranged so as to be substantially located on the pass line, and the flat wall portion 3 a is provided so as to cross the pass line upstream of the notch tip portion 9. For comparison, the level of the trim success rate in the side trimmer device using a shooter having only a notch is shown in FIG.

本発明の実施の形態に係るサイドトリマー装置の使用によって、トリム成功率が約１０％向上した。これは、主に厚さ１．２ｍｍの厚物サイズ、強度３７３Ｎ／ｍｍ2（３８ｋｇｆ／ｍｍ2）以上の高強度鋼板において、トリム屑のシューター外への逸脱およびトリム屑の先折れを防止できたことによる。 The use of the side trimmer device according to the embodiment of the present invention improved the trim success rate by about 10%. This can prevent the trim debris from moving out of the shooter and the tipping of the trim debris in a high-strength steel sheet with a thickness of 1.2 mm and a strength of 373 N / mm 2 (38 kgf / mm 2 ) or more. It depends.

本発明のサイドトリマー装置は、厚物鋼帯、高強度鋼帯のように腰の強い金属材料のサイドトリマー装置として利用できる。また、本発明のサイドトリマー装置は、金属帯を高速でトリミングするサイドトリマー装置として利用できる。   The side trimmer device of the present invention can be used as a side trimmer device made of a metal material having a strong stiffness such as a thick steel strip and a high strength steel strip. Moreover, the side trimmer apparatus of this invention can be utilized as a side trimmer apparatus which trims a metal strip at high speed.

本発明の実施の形態に係るサイドトリマー装置の要部を示す断面模式図である。It is a cross-sectional schematic diagram which shows the principal part of the side trimmer apparatus which concerns on embodiment of this invention. 本発明の実施の形態に係るシューターの構造と作用を説明する図で、（ａ）は上下回転丸刃出側（金属帯送出側）及びシューターのトリム後の金属帯端縁部導入側端部近傍を金属帯幅方向中央部側から見た概略側面図、（ｂ）は（ａ）の平坦状壁部を含む、紙面に平行な断面におけ概略断面図、（ｃ）は（ａ）のＡ−Ａ断面図、（ｄ）は（ａ）のＢ−Ｂ断面図、（ｅ）は（ａ）のＣ−Ｃ断面図である。BRIEF DESCRIPTION OF THE DRAWINGS It is a figure explaining the structure and effect | action of the shooter which concerns on embodiment of this invention, (a) is a metal band edge edge part introduction side edge part after trimming of a vertical rotation round blade (metal band sending side) and a shooter. A schematic side view of the vicinity as seen from the center side in the metal band width direction, (b) is a schematic cross-sectional view in a cross-section parallel to the paper surface, including the flat wall portion of (a), and (c) is a cross-sectional view of (a). AA sectional drawing, (d) is BB sectional drawing of (a), (e) is CC sectional drawing of (a). 本発明に係るサイドトリマー装置に配設される平坦状壁部の好適配設位置の説明に参照する図である。It is a figure referred to description of the suitable arrangement | positioning position of the flat wall part arrange | positioned by the side trimmer apparatus which concerns on this invention. 本発明に係るサイドトリマー装置に配設される平坦状壁部の傾斜角度θの好適範囲を説明する図である。It is a figure explaining the suitable range of inclination-angle (theta) of the flat wall part arrange | positioned at the side trimmer apparatus which concerns on this invention. 切欠部のみを備えるシューターの構造と作用を説明する図で、（ａ）は金属帯幅方向中央側のやや斜め上方からみた上下回転丸刃の出側及びシューターの金属帯導入部側近傍の構造を示す概略斜視図、（ｂ）は（ａ）で薄物材をトリムする場合のトリム屑が案内される状態を説明する概略斜視図、（ｃ）は（ａ）で厚物材をトリムする場合のトリム屑が案内される状態を説明する概略斜視図である。It is a figure explaining the structure and effect | action of a shooter provided only with a notch part, (a) is the structure of the exit side of the up-and-down rotation round blade seen from the diagonally upper side of the metal band width direction and the metal band introduction part side of the shooter (B) is a schematic perspective view for explaining a state in which trim debris is guided when trimming a thin material in (a), and (c) is a case in which a thick material is trimmed in (a) It is a schematic perspective view explaining the state in which the trim waste is guided. 本発明に至る過程で検討したトリム屑の進行方向を下方に変向する変向部材の構造例を説明する図で、（ａ）はシューター内に幅狭の変向部材を設けた例、（ｂ）はシューター部壁に接続して変向部材を設けた例である。It is a figure explaining the structural example of the direction change member which changes the advancing direction of the trim debris examined in the process leading to this invention, (a) is the example which provided the direction change member narrow in a shooter, b) is an example in which a turning member is provided in connection with the shooter wall. 本発明の実施の形態に係るシューターの別の構造を説明する図で、図２のＡ−Ａ断面に対応する部分を説明する。It is a figure explaining another structure of the shooter which concerns on embodiment of this invention, and demonstrates the part corresponding to the AA cross section of FIG. 本発明の実施の形態に係るサイドトリマー装置を使用してサイドトリミングしたときのトリム成功率の推移を示す図である。It is a figure which shows transition of the trim success rate when side trimming is performed using the side trimmer apparatus which concerns on embodiment of this invention.

符号の説明Explanation of symbols

１ａ、１ｂ 回転丸刃
２ シューター
３ａ 平坦状壁部
３ｂ 鉛直状壁部
４ チョッパー装置前トリム屑ガイド
５ チョッパー装置
５ａ、５ｂ チョッパー
６ 金属帯
６ａ 金属帯（トリム後金属帯）
６ｂ トリム屑
７ 切欠部
９ 切欠先端部
１１、１２ 変向部材 DESCRIPTION OF SYMBOLS 1a, 1b Rotating round blade 2 Shooter 3a Flat wall part 3b Vertical wall part 4 Chopper apparatus front trim waste guide 5 Chopper apparatus 5a, 5b Chopper 6 Metal band 6a Metal band (after trim)
6b Trim waste 7 Notch 9 Notch tip 11, 12 Turning member

Claims (3)

金属帯の両端縁部を、夫々上下一対の回転丸刃で切除して金属帯の幅を所定幅に仕上げると共に、切除したトリム屑を前記回転丸刃の出側に設けたシューター内に案内して下方に送り出し、送り出されたトリム屑をチョッパー装置に案内して切断又は巻取装置に案内して巻取るようにしたサイドトリマー装置において、
前記シューターは、前記回転丸刃側の前記金属帯端縁部通板部分の壁部、又は前記回転丸刃側の前記金属帯端縁部通板部分及び前記金属帯端縁部上方部分の壁部に切欠部を有するとともに、前記切欠部を除き、金属帯端縁部の上下及び端部側方を覆う壁部を有するように筒状に形成され、前記シューターの前記トリム屑案内部の上部壁は、前記トリム屑に下向きの力を加えて進行方向を下向きに変向させる、トリム屑案内方向に傾斜した平坦状に形成され、該平坦状壁部は金属帯端部近傍で上方に屈曲して形成された略鉛直状壁部を有することを特徴とするサイドトリマー装置。 Both ends of the metal strip are cut with a pair of upper and lower rotating round blades to finish the width of the metal strip to a predetermined width, and trimmed scraps are guided into a shooter provided on the exit side of the rotating round blade. In the side trimmer device that sends the trim scraps downward, guides the trim scraps sent out to the chopper device, guides them to the cutting or winding device, and winds them up,
The Shooter, walls, or the rotary circular front Symbol metal strip edges through plate portion of the blade side and the metal strip edge upper portion of the front Symbol metal strip edges through plate portion of the rotary circular blade side The trim scrap guide portion of the shooter is formed in a cylindrical shape so as to have a wall portion that covers the top and bottom of the metal band edge portion and the side of the end portion, excluding the notch portion. The upper wall is formed in a flat shape inclined in the trim scrap guiding direction by applying a downward force to the trim scrap to change the traveling direction downward, and the flat wall portion is located above the end of the metal strip. A side trimmer device having a substantially vertical wall portion formed by bending to a side. 前記平坦状壁部は、前記回転丸刃側端部が前記回転丸刃に近接してパスラインより上に設けられるとともに、前記切欠部の切欠先端部よりも上流でパスラインより低くなるように形成されることを特徴とする請求項１に記載のサイドトリマー装置。 The flat wall portion, the rotary circular blade side end portion is provided above the pass line in proximity to the rotary circular blade Rutotomoni, so as to be lower than the pass line upstream than the notch tip of the notch The side trimmer device according to claim 1, wherein the side trimmer device is formed. 前記平坦状壁部の前記回転丸刃側端部と前記回転丸刃中心軸との水平距離をａ、前記平坦状壁部の前記回転丸刃側端部のパスラインからの高さをｂ、前記平坦状壁部の水平面に対する傾斜角度をθとした場合、前記ａ、ｂ、θは、ａ≦５０ｍｍ、ｂ≧０ｍｍ且つθ：５〜４０度を満足することを特徴とする請求項１または請求項２に記載のサイドトリマー装置。 The horizontal distance between the rotary round blade side end of the flat wall and the rotary round blade central axis is a, the height from the pass line of the rotary round blade side end of the flat wall is b, The a, b, and θ satisfy a ≦ 50 mm, b ≧ 0 mm, and θ: 5 to 40 degrees, where θ is an inclination angle of the flat wall portion with respect to a horizontal plane. The side trimmer device according to claim 2.
JP2003335126A 2003-09-26 2003-09-26 Metal strip side trimmer equipment Expired - Fee Related JP4241293B2 (en)

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JP4857712B2 (en) * 2005-10-27 2012-01-18 Ｊｆｅスチール株式会社 Metal strip side trimmer equipment
JP7134768B2 (en) * 2018-07-26 2022-09-12 株式会社アイ・ティー・シー Side scrap processing equipment and metal band cutting system
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