JP4779398B2 - Oiling method and equipment for side trimmer knife and steel strip processing line - Google Patents

Oiling method and equipment for side trimmer knife and steel strip processing line Download PDF

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JP4779398B2
JP4779398B2 JP2005093177A JP2005093177A JP4779398B2 JP 4779398 B2 JP4779398 B2 JP 4779398B2 JP 2005093177 A JP2005093177 A JP 2005093177A JP 2005093177 A JP2005093177 A JP 2005093177A JP 4779398 B2 JP4779398 B2 JP 4779398B2
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oil
side trimmer
knife
steel strip
trimmer knife
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JP2006272490A (en
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佳久 澤田
正司 大田
宏胤 近藤
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JFE Steel Corp
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本発明は、たとえば連続焼鈍ライン等の鋼帯処理ラインに設置されるサイドトリマナイフの塗油方法、装置ならびに鋼帯の処理ラインに関する。   The present invention relates to an oil application method and apparatus for a side trimmer knife installed in a steel strip processing line such as a continuous annealing line, and a steel strip processing line.

熱間、あるいは冷間圧延された鋼帯の処理を行なうプロセスラインでは、最下流において両側エッジ部をサイドトリマによりトリミングすると共に、品質保証の観点から表面検査が行なわれる。このためこうした鋼帯処理ラインでは、特許文献１に記載されているように上流側の検査装置に加えてサイドトリマのさらに下流側にも表面欠陥計を設置し、この表面欠陥計で検出した鋼帯の表面疵情報を出側検査員の目視検査に反映させるようにして厳重な表面検査態勢が取られている。   In a process line for processing hot or cold-rolled steel strip, both edge portions are trimmed with a side trimmer at the most downstream side, and surface inspection is performed from the viewpoint of quality assurance. For this reason, in such a steel strip processing line, as described in Patent Document 1, a surface defect meter is installed on the further downstream side of the side trimmer in addition to the upstream inspection device, and the steel detected by this surface defect meter. A strict surface inspection system is adopted so that the surface wrinkle information of the belt is reflected in the visual inspection of the outgoing inspector.

図４はライン方向から見たサイドトリマの概念図で、21は上ナイフ、22は下ナイフ、Ｓは鋼帯である。サイドトリマでは通常、トリミング時のナイフの焼き付きを防止しナイフ寿命の延長を図るため、ナイフの角部に鉱物油などの潤滑油を塗布することが行なわれている。塗油方法は、フェルトなどの油を含ませた媒体をナイフに接触させる方法、あるいはナイフに向けて油を滴下させる方法、ナイフに向けて油をスプレイする方法などがある。   FIG. 4 is a conceptual diagram of the side trimmer as viewed from the line direction. 21 is an upper knife, 22 is a lower knife, and S is a steel strip. In the side trimmer, a lubricating oil such as mineral oil is usually applied to the corners of the knife in order to prevent knife burn-in during trimming and extend the knife life. The oil coating method includes a method in which a medium containing oil such as felt is brought into contact with the knife, a method in which oil is dropped toward the knife, and a method in which oil is sprayed toward the knife.

フェルトなど接触させる方法では、トリミングの際に発生する切粉がフェルトに付着、堆積してトリマナイフと焼き付きを起こすという問題点がある。一方の滴下あるいはスプレイによる方法ではどうしても塗油量が多くなり、とくに上ナイフへの塗油の場合、油が鋼帯の端部に落下、付着し、下流側の表面欠陥計において欠陥と誤判定するなど、欠陥の正確な判定ができなくなるという問題点がある。そこで特許文献２には、表面欠陥計をサイドトリマの上流側に設置することが提案されている。しかし、このようにすれば油付着による誤判定の問題は解消されるものの、表面欠陥計はサイドトリム前の鋼帯を検査することになる。エッジ部はもともと品質上の欠陥の多い部分であり、その大部分はサイドトリマにより除去されるにも拘らず、サイドトリム前であるために不必要な欠陥を検出してしまうという問題点がある。最終検査は全工程を終了した最終の製品について行なうのが本筋である。
特開平３−１１８９１２号公報 特開２０００−２４６３０６号公報 In the contact method such as felt, there is a problem that chips generated during trimming adhere to and accumulate on the felt and cause seizure with the trimmer knife. On the other hand, the dripping or spraying method necessarily increases the amount of oil applied. Especially when applying oil to the upper knife, the oil falls and adheres to the end of the steel strip, and it is erroneously determined as a defect in the downstream surface defect meter There is a problem that accurate determination of defects cannot be made. Therefore, Patent Document 2 proposes to install a surface defect meter on the upstream side of the side trimmer. However, although this eliminates the problem of erroneous determination due to oil adhesion, the surface defect meter inspects the steel strip before the side trim. The edge part is originally a part with many defects in quality, and most of the edge part is removed by the side trimmer, but there is a problem that an unnecessary defect is detected because it is before the side trim. . The main point of the final inspection is the final product after the completion of all processes.
Japanese Patent Laid-Open No. 3-118912 JP 2000-246306 A

本発明は、トリマナイフへの塗油方法を改善することによって表面欠陥計への悪影響をなくし、表面欠陥計を本来の位置であるサイドトリマの下流に設置して、最終状態で表面欠陥を監視できるようにすることを目的とする。   The present invention eliminates the adverse effect on the surface defect meter by improving the method of applying oil to the trimmer knife, and the surface defect meter can be installed downstream of the original side trimmer to monitor the surface defect in the final state. The purpose is to do so.

本発明のサイドトリマナイフの塗油方法は、油容器に連通する水平方向に偏平なブラシの先端を、水平方向から斜め向きにサイドトリマナイフの角部に接触させることを特徴とする。
また本発明のサイドトリマナイフの塗油装置は、油容器に連通する水平方向に偏平なブラシを、このブラシの先端が水平方向から斜め向きにサイドトリマナイフの角部に接触するように配置したことを特徴とする。 The oiling method for a side trimmer knife according to the present invention is characterized in that the tip of a horizontally flat brush communicating with an oil container is brought into contact with a corner of the side trimmer knife obliquely from the horizontal direction.
Further, in the side trimmer knife oiling device of the present invention, a horizontally flat brush communicating with the oil container is arranged so that the tip of the brush contacts the corner of the side trimmer knife obliquely from the horizontal direction . It is characterized by that.

さらに本発明の鋼帯処理ラインは、前記本発明のサイドトリマナイフの塗油装置を備えたサイドトリマの下流に表面欠陥計を配置したことを特徴とする。   Furthermore, the steel strip processing line of the present invention is characterized in that a surface defect meter is disposed downstream of the side trimmer equipped with the oiling device for the side trimmer knife of the present invention.

本発明によれば、トリマナイフへの微量かつ均一な塗油が実現できる。したがって、表面欠陥計が本来の機能を発揮することによる品質の向上のほか、トリマナイフへの塗油が的確に行なわれることによるナイフの寿命延長が図られ、また塗油装置のブラシも実質的にメンテナンスフリーとなるなど、鋼帯処理ラインの生産性向上ならびにメンテナンスコストの削減というすぐれた効果を奏する。   According to the present invention, it is possible to realize a minute amount and uniform oil application to a trimmer knife. Therefore, in addition to improving the quality of the surface defect meter by performing its original function, it is possible to extend the life of the knife by properly applying oil to the trimmer knife, and the brush of the oiling device is also substantially improved. It has excellent effects of improving the productivity of steel strip processing lines and reducing maintenance costs, such as being maintenance-free.

図１は本発明の一実施形態に係わる塗油装置１を示す正面断面図で、11は油容器（本体）、12は油容器の蓋、13は補給用ボトル、14はブラシである。油容器11内には油が充満している。油容器11の内部の一端にはスポンジ、フェルト等の含油体15が収納されている。そして含油体15の一端にはブラシ14が挿入されており、ブラシ14の先端は水平方向に容器の外側を向いている。油容器の蓋12には逆向きに補給用ボトルがねじ込まれていて、外側から油面が確認できる。ブラシ14内部には容器内の油が含油体15を介して毛細管現象によって浸透し、ぬれた状態となっているので、先端部分を接触させることにより塗油を行なうことができる。   FIG. 1 is a front sectional view showing an oil coating apparatus 1 according to an embodiment of the present invention, in which 11 is an oil container (main body), 12 is an oil container lid, 13 is a refill bottle, and 14 is a brush. The oil container 11 is filled with oil. An oil-containing body 15 such as sponge or felt is accommodated at one end inside the oil container 11. A brush 14 is inserted into one end of the oil-impregnated body 15, and the tip of the brush 14 faces the outside of the container in the horizontal direction. A replenishing bottle is screwed into the lid 12 of the oil container in the opposite direction, and the oil level can be confirmed from the outside. Since the oil in the container penetrates into the brush 14 through the oil-impregnated body 15 by capillary action and is in a wet state, the oil can be applied by contacting the tip portion.

図２は塗油装置１をサイドトリマの上ナイフ21の近くに取り付けた状態を示す斜視図、図３は同じく平面図で、16は塗油装置１の取り付け座である。この図に示されるように、
本発明の塗油装置１は、油容器に連通するブラシ14をこのブラシの先端がサイドトリマ上ナイフ21の角部に水平方向から斜め向きに接触するように配置されている。ブラシ14はたとえばナイロンなどの樹脂製で、接触を確実にするため、水平方向に偏平なものとしてある。このことにより、ナイフの剪断部分に確実に塗油が行なわれるとともに、毛細管現象による浸透のためしみ出る油は微量かつ均一であり、過剰な塗油が行なわれることはない。 2 is a perspective view showing a state in which the oil applicator 1 is attached near the upper knife 21 of the side trimmer, FIG. 3 is a plan view of the same, and 16 is an attachment seat for the oil applicator 1. FIG. As shown in this figure,
In the oil coating apparatus 1 of the present invention, a brush 14 communicating with an oil container is disposed so that the tip of the brush contacts the corner of the side trimmer upper knife 21 in an oblique direction from the horizontal direction. The brush 14 is made of a resin such as nylon and is flat in the horizontal direction to ensure contact. As a result, oil is reliably applied to the sheared portion of the knife, and the oil that oozes out due to permeation by capillary action is minute and uniform, so that excessive oil application is not performed.

本発明においては、油容器に連通する偏平なブラシの先端を、水平方向から回転するサイドトリマナイフの角部に斜め向きに接触させるという塗油方法であるから、必要最小限の塗油量となり、トリム後の鋼帯エッジ部に油を付着させることなくトリマナイフへの潤滑を行なうことができる。また、トリマナイフとの接触がたとえば従来のフェルトのように面接触ではないから、切粉の付着、堆積も少なく、かりに付着してもブラシの隙間に堆積し、ブラシの摩耗と共に落下するので焼き付きに至ることはない。   In the present invention, since it is an oil application method in which the tip of a flat brush communicating with the oil container is brought into contact with the corner of the side trimmer knife rotating from the horizontal direction in an oblique direction, the required minimum amount of oil is applied. The trimmer knife can be lubricated without attaching oil to the edge of the steel strip after trimming. Also, since the contact with the trimmer knife is not a surface contact like conventional felt, for example, there is little adhesion and accumulation of chips, and even if it adheres to the scale, it accumulates in the gap of the brush and falls with brush wear, so it seizes. It will not reach.

さらに本発明の鋼帯処理ラインは、前記の本発明の塗油装置を備えたサイドトリマの下流に表面欠陥計を配置している。連続焼鈍ラインの例でいえば、焼鈍炉と検査工程との間に本発明の塗油装置を備えたサイドトリマを設ければ、表面欠陥計はその下流側となる。配置をこの順序とすることにより、特許文献２に記載の発明のように鋼帯エッジ部の不必要な欠陥を表面欠陥計が検出することがなく、また、サイドトリマでの塗油量が微小なのでトリム後の鋼帯エッジ部への油付着がなく、下流の表面欠陥計における誤判定の要因となることもない。   Furthermore, the steel strip processing line of this invention has arrange | positioned the surface defect meter downstream of the side trimmer provided with the oil coating apparatus of the said this invention. In the case of a continuous annealing line, if a side trimmer equipped with the oil coating device of the present invention is provided between the annealing furnace and the inspection process, the surface defect meter is on the downstream side. By arranging in this order, the surface defect meter does not detect unnecessary defects at the edge of the steel strip as in the invention described in Patent Document 2, and the amount of oil applied by the side trimmer is very small. Therefore, there is no oil adhesion to the steel strip edge after trimming, and there is no possibility of erroneous determination in the downstream surface defect meter.

なお、本発明の塗油方法および装置は、前記したようにサイドトリマの上ナイフへの塗油においてもっとも効果を発揮するものではあるが、下ナイフ用に使用してもよく、上ナイフの場合と同様の効果を得ることができる。同様に、下流に表面欠陥計を有する鋼帯の処理ラインのサイドトリマにおいてもっとも効果的ではあるが、一般のサイドトリマに使用しても何ら問題はない。   The oiling method and apparatus of the present invention are most effective in oiling the upper knife of the side trimmer as described above, but may be used for the lower knife. The same effect can be obtained. Similarly, it is most effective in the side trimmer of a steel strip processing line having a surface defect meter downstream, but there is no problem even if it is used for a general side trimmer.

サイドトリマと表面欠陥計とがこの順に配置されている鋼帯処理ラインにおいて、図1に示した本発明の塗油装置を図2および図3の取り付け状態となるようサイドトリマに取り付け、トリマナイフに対して本発明の塗油方法を実施した。
その結果、鋼帯エッジ部への油付着が原因となる表面欠陥計の誤判定はほとんどなく、
従来の無塗油の場合の走行2000ｋｍと比較してナイフ寿命が5000ｋｍまで延長された。さらに、ブラシの摩耗による交換は１年間は不要であり、実質的にメンテナンスフリーとなった。 In the steel strip processing line in which the side trimmer and the surface defect meter are arranged in this order, the oiling device of the present invention shown in FIG. 1 is attached to the side trimmer so as to be in the attachment state of FIGS. On the other hand, the oil coating method of the present invention was carried out.
As a result, there is almost no misjudgment of the surface defect meter due to oil adhesion to the steel strip edge,
The knife life was extended to 5000 km compared to the 2000 km travel in the case of the conventional oil-free operation. Furthermore, replacement due to wear of the brushes is unnecessary for one year, and is virtually maintenance-free.

本発明の一実施形態に係わる塗油装置を示す正面断面図である。It is front sectional drawing which shows the oil coating apparatus concerning one Embodiment of this invention. 塗油装置の取り付け状態を示す斜視図である。It is a perspective view which shows the attachment state of an oil coating apparatus. 塗油装置の取り付け状態を示す平面図である。It is a top view which shows the attachment state of an oiling apparatus. 本発明に係わるサイドトリマの概念図である。It is a conceptual diagram of the side trimmer concerning this invention.

符号の説明Explanation of symbols

１ 塗油装置
11 油容器（本体）
12 （油容器の）蓋
13 補給用ボトル
14 ブラシ
15 含油体
16 取り付け座
21 上ナイフ
22 下ナイフ 1 Oiling equipment
11 Oil container (main unit)
12 (oil container) lid
13 Supply bottle
14 Brush
15 Oil-impregnated body
16 Mounting seat
21 Upper knife
22 Lower knife

Claims (3)

油容器に連通する水平方向に偏平なブラシの先端を、水平方向から斜め向きにサイドトリマナイフの角部に接触させることを特徴とするサイドトリマナイフの塗油方法。 An oil coating method for a side trimmer knife, wherein a tip of a horizontally flat brush communicating with an oil container is brought into contact with a corner of the side trimmer knife obliquely from the horizontal direction. 油容器（１１）に連通する水平方向に偏平なブラシ（１４）を、このブラシの先端が水平方向から斜め向きにサイドトリマナイフ（２１）の角部に接触するように配置したことを特徴とするサイドトリマナイフの塗油装置。 A horizontally flat brush (14) communicating with the oil container (11) is disposed such that the tip of the brush contacts the corner of the side trimmer knife (21) obliquely from the horizontal direction. Oiling device for side trimmer knife. 請求項２に記載のサイドトリマナイフの塗油装置を備えたサイドトリマの下流に表面欠陥計を配置したことを特徴とする鋼帯処理ライン。 A steel strip processing line, wherein a surface defect meter is disposed downstream of a side trimmer equipped with an oiling device for a side trimmer knife according to claim 2.
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