JP2004098180A - Edge miller for steel plate, and its method for use - Google Patents

Edge miller for steel plate, and its method for use Download PDF

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Publication number
JP2004098180A
JP2004098180A JP2002259740A JP2002259740A JP2004098180A JP 2004098180 A JP2004098180 A JP 2004098180A JP 2002259740 A JP2002259740 A JP 2002259740A JP 2002259740 A JP2002259740 A JP 2002259740A JP 2004098180 A JP2004098180 A JP 2004098180A
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Japan
Prior art keywords
lubricant
cutter
cutting
steel plate
oil
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JP2002259740A
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Japanese (ja)
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JP4068925B2 (en
Inventor
Haruhisa Sugimoto
杉本 治久
Iwao Nakatani
中谷 巌
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Nippon Steel Corp
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Nippon Steel Corp
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Abstract

<P>PROBLEM TO BE SOLVED: To provide an edge miller for a steel plate, which can elongate the life of cutting tips of a cutter, and further has no danger of a fire. <P>SOLUTION: The edge miller for cutting an edge face of the steel plate is provided with a lubricant supply device for spraying a mist of a non-oil lubricant. Preferably, a nozzle having a wide and flat tip end is arranged so as to face in the direction opposed to the rotational direction of the cutter, and the non-oil lubricant is the lubricant in which a high molecular water-absorptive polymer is distributed in a water solution in a gelled state. <P>COPYRIGHT: (C)2004,JPO

Description

【0001】
【発明が属する技術分野】
本発明は、鋼板の端面を切削する鋼板用エッジミラーに関する。
【0002】
【従来の技術】
従来、エッジミラーは鋼管のシーム溶接前における鋼板端面の切削に用いられており、この場合、切削に引き続いて溶接作業を実施することから、鋼板への油や水の付着等は認められず、乾式切削を行っていた。
鋼板用エッジミラーに関する従来技術としては、例えば、特開2001−150004号公報に、切削ヘッドにサポートロールを設け、切削ヘッドの上流および下流にピンチロールを設けることにより、鋼板に座屈によるしわを発生させないエッジミラーが開示されている。
【0003】
しかし、この特開2001−150004号公報に開示されているエッジミラーは、従来同様の乾式切削であり切削チップの寿命が短いという問題点があった。
また、一般に、切削用の潤滑剤には油系の潤滑剤が用いられるが、この油系の潤滑剤を鋼板の切削に用いると、切削時に発生する火花が油系の潤滑剤に引火して火災の原因になる可能性があるので油系潤滑剤は使用できなかった。
【0004】
【特許文献1】
特開2001−150004号公報(第1頁、図1)
【0005】
【発明が解決しようとする課題】
本発明は、前述のような従来技術の問題点を解決し、カッターの切削チップの長寿命化が図れ、しかも、火災の危険性がない鋼板用エッジミラーおよびその使用方法を提供することを課題とする。
【0006】
【課題を解決する手段】
本発明は、前述の課題を解決するために鋭意検討の結果なされたものであり、その要旨とするところは特許請求の範囲に記載した通りの下記内容である。
(1)鋼板の端面を切削するエッジミラーにおいて、前記鋼板の端面を切削するカッターに、ミスト状の非油系潤滑剤を噴霧する潤滑剤供給装置を有することを特徴とする鋼板用エッジミラー。
(2)前記カッターの回転方向と対向する向きに、先端が幅広かつ扁平形状のノズルを配置することを特徴とする(1)に記載の鋼板用エッジミラー。
【0007】
(3)前記ミスト状の非油系潤滑剤は、高分子吸水性ポリマーが水溶液中にゲル化して分散した潤滑剤であることを特徴とする(1)または(2)に記載の鋼板用エッジミラー。
(4)(1)乃至(3)に記載の鋼板用エッジミラーの使用方法であって、前記鋼板の端面を切削しているときは、前記ミスト状の非油系潤滑剤を噴霧し、前記鋼板の端面を切削していないときは、エアーを噴射することを特徴とする鋼板用エッジミラーの使用方法。
【0008】
【発明の実施の形態】
本発明の実施の形態を、図1乃至図4により詳細に説明する。
図1は、本発明のエッジミラーを上から見た図である。
図1において、鋼板1は、左側から右側に搬送される過程で、カッター2により、端面が板幅方向に数mm程度切削される。
鋼板1の端面を切削するときには、ノズル3により、ミスト状の非油系潤滑剤を、カッター2の側面に設けられている切削チップに、カッターの回転方向に対向する向きに噴霧する。
【0009】
非油系の潤滑剤とするので、切削時に発生する火花が引火する危険性がない。
また、エアーと混合してミスト状の潤滑剤とするので、少量の潤滑剤でもカッターの切削チップの表面全体に潤滑剤を行き渡らせることができる。
さらに、カッターの回転方向に対向する向きに潤滑剤を噴霧するので、潤滑剤が、カッターの切削チップの表面に付着し易いうえ、鋼板1の表面や設備に潤滑剤が付着することによる汚れを防止することができる。
カッターの切削チップの表面全体に潤滑剤が噴霧されるので、切削抵抗が減少してカッターの切削チップの磨耗量を低減することができ、カッターの寿命を著しく延長させることができる。
【0010】
図2は、本発明のエッジミラーを斜め上から見た図である。
図2において、ミスト状の非油系潤滑剤4は、ノズル3によって、カッター2の側面に噴霧される。
図2に示すように、ノズル3の先端は、幅広かつ扁平形状となっているので、カッター2の側面に設けられている切削チップの表面全体に潤滑剤が行き渡り易い。
なお、図1および図2においては、鋼板の片方の端面のみを図示しているが、他方の端面もこれと対称とすることが好ましい。
【0011】
図3は、本発明に用いる潤滑剤供給装置を示す図である。
図3において、非油系の潤滑剤は、電磁弁6を介して供給され、エアー5と混合されてミスト状にされ、ノズル3から噴霧される。
カッターが鋼板の端面を切削しているときは、カッターが回転し、切削開始の信号で電磁弁6を開くとことによって、潤滑剤が供給され、カッターが鋼板の端面を切削していないときは、切削停止の信号で電磁弁6を閉じることによって、潤滑剤の噴霧が停止される。この動作によって、潤滑剤の噴霧を必要最低限に抑えることができる。
また、カッターが鋼板の端面を切削していないときは、エアー5のみを噴射して、ノズルおよび配管をエアーパージすることによって、ノズルおよび配管内に潤滑剤が目詰まりすることを防止することができるうえ、カッターから潤滑剤が垂れることも防止することができる。
【0012】
【実施例】
本発明の鋼板用エッジミラーおよびその使用方法を、下記条件にて実際の薄鋼板の製造ラインに適用した結果を図4に示す。

Figure 2004098180
【0013】
図4は、本発明の効果を示す図である。
図4において、横軸は切削距離(m)を示し、縦軸は切削チップの逃げ面における磨耗量(mm)を示す。
図4において、▲1▼は低粘度の非油系潤滑剤を用いた場合、▲2▼は中粘度の非油系潤滑剤を用いた場合、▲3▼は高粘度の非油系潤滑剤を用いた場合、▲4▼潤滑剤を使用しなかった場合を示す。
この結果、非油系潤滑剤を用いることによって、切削チップの磨耗量は著しく減少し、低粘度の非油系潤滑剤を用いる場合が最も磨耗量を低減することができた。
【0014】
【発明の効果】
本発明によれば、カッターの切削チップの長寿命化が図れ、しかも、火災の危険性がない鋼板用エッジミラーおよびその使用方法を提供することができ、具体的には、以下のような産業上有用な著しい効果を奏する。
1)ミスト状潤滑剤を噴霧することで、切削抵抗が低減し、カッターの切削チップの寿命が著しく延長される。
2)微量の潤滑剤を鋼板に掛からないよう且つ余分な潤滑剤を塗布しないことで、潤滑剤の飛散等による鋼板への潤滑剤付着および設備の汚れを防止し、効率的にカッターへの潤滑剤を供給することができる。
3)非油系の潤滑剤を塗布することで火災の発生なく潤滑性を向上させることができる。
【図面の簡単な説明】
【図1】本発明のエッジミラーを上から見た図である。
【図2】本発明のエッジミラーを斜め上から見た図である。
【図3】本発明に用いる潤滑剤供給装置を示す図である。
【図4】本発明の効果を示す図である。
【符号の説明】
1:鋼板、
2:カッター、
3:ノズル、
4:潤滑剤、
5:エアー、
6:電磁弁[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to an edge mirror for a steel plate that cuts an end surface of a steel plate.
[0002]
[Prior art]
Conventionally, the edge mirror is used for cutting the end face of the steel sheet before seam welding of the steel pipe.In this case, since the welding operation is performed following the cutting, adhesion of oil or water to the steel sheet is not recognized, Dry cutting was being performed.
As a conventional technology related to a steel plate edge mirror, for example, Japanese Patent Application Laid-Open No. 2001-150004 discloses that a cutting roll is provided with a support roll, and a pinch roll is provided upstream and downstream of the cutting head, whereby wrinkles due to buckling of the steel plate can be obtained. No edge mirror is disclosed.
[0003]
However, the edge mirror disclosed in Japanese Patent Application Laid-Open No. 2001-150004 has a problem that the dry cutting is the same as the conventional one and the life of the cutting tip is short.
In general, an oil-based lubricant is used as a cutting lubricant, but when this oil-based lubricant is used for cutting a steel sheet, sparks generated during cutting ignite the oil-based lubricant. Oil-based lubricants could not be used because they could cause a fire.
[0004]
[Patent Document 1]
JP 2001-150004 A (page 1, FIG. 1)
[0005]
[Problems to be solved by the invention]
An object of the present invention is to provide an edge mirror for a steel plate that solves the above-mentioned problems of the prior art, can extend the life of a cutting tip of a cutter, and has no danger of fire, and a method of using the same. And
[0006]
[Means to solve the problem]
The present invention has been made as a result of intensive studies in order to solve the above-mentioned problems, and the gist of the present invention is as described below in the claims.
(1) An edge mirror for cutting an end surface of a steel plate, wherein the cutter for cutting the end surface of the steel plate has a lubricant supply device for spraying a mist-like non-oil-based lubricant.
(2) The edge mirror for a steel sheet according to (1), wherein a nozzle having a wide end and a flat shape is disposed in a direction opposed to a rotation direction of the cutter.
[0007]
(3) The edge for a steel sheet according to (1) or (2), wherein the mist-like non-oil-based lubricant is a lubricant in which a high-molecular-weight water-absorbing polymer is gelled and dispersed in an aqueous solution. mirror.
(4) The method for using an edge mirror for a steel sheet according to any one of (1) to (3), wherein the mist-like non-oil-based lubricant is sprayed when an end face of the steel sheet is cut. A method of using an edge mirror for a steel sheet, wherein air is jetted when the end face of the steel sheet is not cut.
[0008]
BEST MODE FOR CARRYING OUT THE INVENTION
An embodiment of the present invention will be described in detail with reference to FIGS.
FIG. 1 is a top view of an edge mirror according to the present invention.
In FIG. 1, an end face of a steel plate 1 is cut by about several mm in a width direction of the plate by a cutter 2 in a process of being conveyed from left to right.
When cutting the end face of the steel plate 1, the nozzle 3 sprays a mist-like non-oil-based lubricant onto a cutting tip provided on a side surface of the cutter 2 in a direction opposite to the rotation direction of the cutter.
[0009]
Since it is a non-oil based lubricant, there is no danger of sparks generated during cutting.
Further, since the mist-like lubricant is mixed with the air, even a small amount of the lubricant can spread the lubricant over the entire surface of the cutting tip of the cutter.
Further, since the lubricant is sprayed in a direction opposite to the rotation direction of the cutter, the lubricant easily adheres to the surface of the cutting tip of the cutter, and dirt due to the adhesion of the lubricant to the surface of the steel plate 1 and equipment is removed. Can be prevented.
Since the lubricant is sprayed on the entire surface of the cutting tip of the cutter, the cutting resistance is reduced, the amount of wear of the cutting tip of the cutter can be reduced, and the life of the cutter can be significantly extended.
[0010]
FIG. 2 is a diagram of the edge mirror of the present invention viewed obliquely from above.
In FIG. 2, a mist-like non-oil-based lubricant 4 is sprayed by a nozzle 3 onto a side surface of the cutter 2.
As shown in FIG. 2, since the tip of the nozzle 3 has a wide and flat shape, the lubricant easily spreads over the entire surface of the cutting tip provided on the side surface of the cutter 2.
Although FIGS. 1 and 2 show only one end surface of the steel plate, it is preferable that the other end surface is also symmetrical thereto.
[0011]
FIG. 3 is a diagram showing a lubricant supply device used in the present invention.
In FIG. 3, a non-oil-based lubricant is supplied via an electromagnetic valve 6, mixed with air 5 to form a mist, and sprayed from a nozzle 3.
When the cutter is cutting the end face of the steel sheet, the cutter rotates, and by opening the solenoid valve 6 with the signal of the start of cutting, lubricant is supplied, and when the cutter is not cutting the end face of the steel sheet, The spraying of the lubricant is stopped by closing the solenoid valve 6 with the signal of the cutting stop. By this operation, the spray of the lubricant can be minimized.
Further, when the cutter is not cutting the end face of the steel plate, the nozzle 5 and the pipe are air-purged by injecting only the air 5 to prevent the lubricant from being clogged in the nozzle and the pipe. In addition, it is possible to prevent the lubricant from dripping from the cutter.
[0012]
【Example】
FIG. 4 shows the results of applying the steel sheet edge mirror of the present invention and the method of using the same to an actual thin steel sheet production line under the following conditions.
Figure 2004098180
[0013]
FIG. 4 is a diagram illustrating the effect of the present invention.
In FIG. 4, the horizontal axis indicates the cutting distance (m), and the vertical axis indicates the amount of wear (mm) on the flank of the cutting tip.
In FIG. 4, (1) is a case where a low-viscosity non-oil lubricant is used, (2) is a case where a medium-viscosity non-oil lubricant is used, and (3) is a high-viscosity non-oil lubricant. (4) shows the case where no lubricant was used.
As a result, the wear amount of the cutting tip was significantly reduced by using the non-oil-based lubricant, and the wear amount could be reduced most when the low-viscosity non-oil-based lubricant was used.
[0014]
【The invention's effect】
Advantageous Effects of Invention According to the present invention, it is possible to provide a steel plate edge mirror and a method of using the same that can extend the life of a cutting tip of a cutter and have no danger of fire. It has a remarkably useful effect.
1) By spraying the mist-like lubricant, the cutting resistance is reduced, and the life of the cutting tip of the cutter is significantly extended.
2) A small amount of lubricant is not applied to the steel plate and no extra lubricant is applied, so that the lubricant is prevented from sticking to the steel plate due to scattering of the lubricant and the contamination of the equipment, and the cutter is efficiently lubricated. An agent can be supplied.
3) Lubricity can be improved without fire by applying a non-oil-based lubricant.
[Brief description of the drawings]
FIG. 1 is a top view of an edge mirror according to the present invention.
FIG. 2 is a view of the edge mirror of the present invention as viewed obliquely from above.
FIG. 3 is a diagram showing a lubricant supply device used in the present invention.
FIG. 4 is a diagram showing the effect of the present invention.
[Explanation of symbols]
1: steel plate,
2: cutter,
3: Nozzle,
4: Lubricant,
5: Air,
6: Solenoid valve

Claims (4)

鋼板の端面を切削するエッジミラーにおいて、
前記鋼板の端面を切削するカッターに、ミスト状の非油系潤滑剤を噴霧する潤滑剤供給装置を有することを特徴とする鋼板用エッジミラー。
In an edge mirror that cuts the end face of a steel plate,
An edge mirror for a steel sheet, comprising a lubricant supply device for spraying a mist-like non-oil-based lubricant to a cutter for cutting an end face of the steel sheet.
前記カッターの回転方向と対向する向きに、先端が幅広かつ扁平形状のノズルを配置することを特徴とする請求項1に記載の鋼板用エッジミラー。The steel sheet edge mirror according to claim 1, wherein a nozzle having a wide end and a flat shape is disposed in a direction facing the rotation direction of the cutter. 前記ミスト状の非油系潤滑剤は、高分子吸水性ポリマーが水溶液中にゲル化して分散した潤滑剤であることを特徴とする請求項1または請求項2に記載の鋼板用エッジミラー。The edge mirror for a steel sheet according to claim 1 or 2, wherein the mist-like non-oil-based lubricant is a lubricant in which a high-molecular water-absorbing polymer is gelled and dispersed in an aqueous solution. 請求項1乃至請求項3に記載の鋼板用エッジミラーの使用方法であって、
前記鋼板の端面を切削しているときは、前記ミスト状の非油系潤滑剤を噴霧し、
前記鋼板の端面を切削していないときは、エアーを噴射することを特徴とする鋼板用エッジミラーの使用方法。
It is a use method of the edge mirror for steel plates of Claim 1 thru | or 3,
When cutting the end face of the steel plate, spray the mist-like non-oil-based lubricant,
A method of using an edge mirror for a steel sheet, wherein air is jetted when an end face of the steel sheet is not cut.
JP2002259740A 2002-09-05 2002-09-05 Edge mirror for steel plate and method of using the same Expired - Fee Related JP4068925B2 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010180925A (en) * 2009-02-04 2010-08-19 Alphana Technology Co Ltd Method for manufacturing fluid dynamic bearing, fluid dynamic bearing, motor, and disk drive device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010180925A (en) * 2009-02-04 2010-08-19 Alphana Technology Co Ltd Method for manufacturing fluid dynamic bearing, fluid dynamic bearing, motor, and disk drive device
US8776377B2 (en) 2009-02-04 2014-07-15 Samsung Electro-Mechanics Japan Advanced Technology Co., Ltd. Method for manufacturing a fluid dynamic bearing, a fluid dynamic bearing, a motor, and a disk drive device

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