JP2004017224A - Slab cutting machine - Google Patents

Slab cutting machine Download PDF

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Publication number
JP2004017224A
JP2004017224A JP2002176630A JP2002176630A JP2004017224A JP 2004017224 A JP2004017224 A JP 2004017224A JP 2002176630 A JP2002176630 A JP 2002176630A JP 2002176630 A JP2002176630 A JP 2002176630A JP 2004017224 A JP2004017224 A JP 2004017224A
Authority
JP
Japan
Prior art keywords
slab
cutting
attached
cutting machine
traveling
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP2002176630A
Other languages
Japanese (ja)
Inventor
Takashi Yokoyama
横山 隆
Tetsuya Takara
高良 哲哉
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
JFE Steel Corp
Original Assignee
JFE Steel Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by JFE Steel Corp filed Critical JFE Steel Corp
Priority to JP2002176630A priority Critical patent/JP2004017224A/en
Publication of JP2004017224A publication Critical patent/JP2004017224A/en
Pending legal-status Critical Current

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Abstract

<P>PROBLEM TO BE SOLVED: To obtain a slab cutting machine which removes oxidation scales and cracks on a surface at high efficiency without quality irregularities. <P>SOLUTION: This slab cutting machine comprises: a traveling bogie 1 travelling along a longitudinal direction of a slab across a cut slab 12; an elevating bogie 3 elevated by an elevating cylinder 2 attached to the traveling bogie 1; and a cutting mechanism 4 attached to the elevating bogie 3. The cutting mechanism 4 has: a pair of drive sprockets 5, 6 arranged in such a manner that a rotational shaft is horizontal and parallel to a longitudinal direction of the slab; an endless chain 7 wound between a pair of the sprockets 5 and 6; and a plurality of blade stands 9 attached to the chain 7 at constant intervals in such a manner that a traveling direction of the endless chain 7 is equal to a cutting direction of a cutting blade 8. <P>COPYRIGHT: (C)2004,JPO

Description

【0001】
【産業上の利用分野】
この発明は、スラブ表面の酸化スケ−ルや疵を取り除くためのスラブ切削機に関する。
【0002】
【従来の技術】
スラブの表面に発生する酸化スケ−ルや疵は、スラブを素材として製造される鋼板の品質を低下させる原因となるので、素材として供給される前に取り除かれる。
【0003】
スラブの表面の酸化スケ−ルや疵の除去は、通常砥石を使用したグラインダ−により行われる。
【0004】
しかしながら、表面の清浄性が要求される材質の鋼板、例えばブラウン管のシャド−マスク用に供せられる36%ニッケル材(通常アンバ−と呼ばれている)用のスラブの場合には、グラインダ−の砥粒がスラブ表面に食い込み、品質異常を発生させるので、フライス盤、プレ−ナ−およびプラノミラ−等の切削機械により、スラブの表層を削り取るようにしている。
【0005】
【発明が解決しようとする課題】
しかしながら、上述したような既存の切削機械によりスラブの表層を切削し、酸化スケ−ルや疵を除去する方法では、加工能率が低いという問題がある。
【0006】
この発明は、従来技術の上述のような問題点を解消するためになされたものであり、スラブ表面の酸化スケ−ルや疵の除去を、品質異常を発生させず、かつ高能率で行うことのできるスラブ切削機を提供することを目的としている。
【0007】
【課題を解決するための手段】
この発明に係るスラブ切削機は、被切削スラブをまたぎスラブの長手方向に沿って走行する走行台車と、該走行台車に取り付けられた昇降シリンダ−により昇降する昇降台車と、該昇降台車に取り付けられた切削機構とからなり、該切削機構は、回転軸が水平かつスラブの長手方向と平行となるように配置された1対の駆動スプロケット、該1対のスプロケット間に掛け回された無端チェ−ンと、該無端チェ−ンの進行方向と切削刃の切削方向が一致するように、チェ−ンに一定間隔で取り付けられた複数の刃物台とを有するものである。
【0008】
この発明に係るスラブ切削機においては、走行台車を移動させながら、無端チェ−ンに取り付けた複数の切削刃により、スラブ表面の酸化スケ−ルや疵を除去するようにしているので、既存の切削機械で除去するよりも、切削能力が向上する。
【0009】
【発明の実施の形態】
本発明の実施の形態を図面を参照して説明する。図1は本発明のスラブ切削機の正面図、図2スラブ切削機の側面図である。
【0010】
このスラブ切削機は、固定用ベッド11に固定されたスラブ12の長手方向に沿って、スラブ12の両側に設けられた1対のレ−ル13上を車輪1aにより走行する走行台車1と、走行台車1の走行方向と直交する端面1bに取り付けられた1対の昇降用シリンダ−2により昇降する昇降台車3と、昇降台車3に取り付けられた切削機構4とから構成されている。
【0011】
切削機構4を詳述すると、切削機構4は、回転軸5aおよび6aが水平かつスラブ12の長手方向と平行となるように配置された1対の駆動スプロケット5および6と、駆動スプロケット5および6間に掛け回された無端チェ−ン7と、無端チェ−ン7の進行方向と切削刃8の切削方向が一致するように、無端チェ−ン7に一定間隔で取り付けられた複数の刃物台9とを具備している。なお、図1において、10は無端チェ−ン7に張力を付与するための張力付与装置、14は無端チェ−ン7に作用する切削反力を受けるための反力受けフレ−ム、15は切削屑排出シュ−ト、16は切削屑受けである。また、図2において、17は昇降台車3の下端に取り付けた倣いロ−ラである。
【0012】
図3は、無端チェ−ン7と刃物台9との接続状態を示す図であり、(a)は平面図、(b)は正面図である。無端チェ−ン7はリンク21とリンクピン22とから構成されるリンクチェ−ンであり、刃物台9はリンクピン22により、隣り合うリンク21間に接続されている。また、刃物台9の反力フレ−ム14と接触する部分にはスライドライナ23が取り付けられている。
【0013】
このスラブの切削機により、スラブ12の表面の酸化スケ−ルや疵を削除するときには、前記倣いロ−ラ17がスラブ12の切削開始側の幅端部近傍の表面に接触するように、昇降シリンダ−2により昇降台車3の位置をセットし、所定の切り込み量となるように、無端チェ−ン7に取り付けた各刃物台9の切削刃8の高さを調整する。
【0014】
そして、駆動スプロケット5および6により、無端チェ−ン7を回転させて、切削を開始する。この切削は、スラブ12の幅方向に沿って行なわれ、その位置での切削が終ると、スラブ12の長手方向に走行台車1を移動させ、次の位置を切削するということを繰り返しながら、スラブの所定面積の酸化スケ−ルや疵の除去を行なう。なお、幅方向1回の切削で除去しきれないときには、昇降用シリンダ−2で昇降台車3を下降させて、完全に除去できるまで切削を繰り返す。
【0015】
既存の切削機械、例えばプラノミラ−では、刃物に対してスラブを往復運動させなければならないので、スラブを戻す過程でアイドルタイムが発生するが、本発明のスラブの切削機においては、スラブ12の幅方向には、切削刃8を一方向にのみ移動させながら切削でき、スラブ12の長手方向には、走行台車1を1方向にのみ移動させながら切削できるので、ロス時間なしに連続的に切削でき、既存の切削機械に比較して、大幅な切削能力の向上が期待できる。
【0016】
【発明の効果】
本発明により、スラブ表面の酸化スケ−ルや疵の除去を、品質異常を発生させず、かつ高能率で行うことができる。
【図面の簡単な説明】
【図1】本発明のスラブ切削機の正面図である。
【図2】本発明のスラブ切削機の側面図である。
【図3】無端チェ−ンと刃物台との接続状態を示す図であり、(a)は平面図、(b)は正面図である。
【符号の説明】
1 走行台車
2 昇降用シリンダ−
3 昇降台車
4 切削機構
5、6 駆動スプロケット
7 無端チェ−ン
8 切削刃
9 刃物台
10 張力付与装置
11 固定用ベッド
12 スラブ
13 レ−ル
14 反力受けフレ−ム
15 切削屑排出シュ−ト
16 切削屑受
17 倣いロ−ラ
21 リンク
22 リンクピン
23 スライドライナ
[0001]
[Industrial applications]
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a slab cutting machine for removing oxide scales and flaws on a slab surface.
[0002]
[Prior art]
Oxidation scale and flaws generated on the surface of the slab are removed before being supplied as a raw material because they cause deterioration in the quality of a steel plate manufactured using the slab as a raw material.
[0003]
Removal of the oxide scale and flaws on the surface of the slab is usually performed by a grinder using a grindstone.
[0004]
However, in the case of a slab made of a material requiring surface cleanliness, for example, a slab for a 36% nickel material (usually called invar) used for a shadow mask of a cathode ray tube, a grinder is used. Since the abrasive grains penetrate the slab surface and cause abnormal quality, the surface layer of the slab is scraped off by a cutting machine such as a milling machine, a planer and a plano mirror.
[0005]
[Problems to be solved by the invention]
However, the method of cutting the surface layer of the slab with the existing cutting machine as described above to remove oxide scales and flaws has a problem that the working efficiency is low.
[0006]
SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems of the prior art, and it is an object of the present invention to remove oxidized scales and flaws on the surface of a slab with high efficiency without causing any quality abnormality. The purpose of the present invention is to provide a slab cutting machine capable of cutting.
[0007]
[Means for Solving the Problems]
A slab cutting machine according to the present invention includes a traveling vehicle that runs along the longitudinal direction of a slab across a slab to be cut, an elevating vehicle that is elevated by an elevating cylinder attached to the traveling vehicle, and a vehicle that is mounted on the elevating vehicle. A pair of drive sprockets arranged so that the rotation axis is horizontal and parallel to the longitudinal direction of the slab, and an endless chain wound between the pair of sprockets. And a plurality of tool rests attached to the chain at regular intervals such that the direction of travel of the endless chain coincides with the cutting direction of the cutting blade.
[0008]
In the slab cutting machine according to the present invention, the oxidized scale and flaws on the slab surface are removed by the plurality of cutting blades attached to the endless chain while moving the traveling cart. The cutting ability is improved as compared with removing with a cutting machine.
[0009]
BEST MODE FOR CARRYING OUT THE INVENTION
An embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a front view of the slab cutting machine of the present invention, and FIG. 2 is a side view of the slab cutting machine.
[0010]
The slab cutting machine includes a traveling carriage 1 traveling on a pair of rails 13 provided on both sides of the slab 12 by wheels 1a along a longitudinal direction of the slab 12 fixed to the fixing bed 11; The lift truck 3 is configured to move up and down by a pair of lift cylinders 2 attached to an end surface 1 b orthogonal to the traveling direction of the traveling truck 1, and a cutting mechanism 4 attached to the lift truck 3.
[0011]
The cutting mechanism 4 will be described in detail. The cutting mechanism 4 includes a pair of drive sprockets 5 and 6 arranged such that the rotation axes 5a and 6a are horizontal and parallel to the longitudinal direction of the slab 12, and a pair of drive sprockets 5 and 6 The endless chain 7 stretched between them, and a plurality of turrets attached to the endless chain 7 at regular intervals so that the traveling direction of the endless chain 7 matches the cutting direction of the cutting blade 8. 9 is provided. In FIG. 1, reference numeral 10 denotes a tension applying device for applying tension to the endless chain 7, reference numeral 14 denotes a reaction force receiving frame for receiving a cutting reaction force acting on the endless chain 7, and reference numeral 15 denotes a frame. A cutting waste discharge start 16 is a cutting waste receiver. In FIG. 2, reference numeral 17 denotes a copying roller attached to the lower end of the lift truck 3.
[0012]
FIGS. 3A and 3B are views showing a connection state between the endless chain 7 and the tool rest 9, wherein FIG. 3A is a plan view and FIG. 3B is a front view. The endless chain 7 is a link chain including a link 21 and a link pin 22, and the tool rest 9 is connected between adjacent links 21 by the link pin 22. A slide liner 23 is attached to a portion of the tool rest 9 which comes into contact with the reaction frame 14.
[0013]
When removing the oxidized scale and flaws on the surface of the slab 12 by the slab cutting machine, the slab 12 is moved up and down so that the copying roller 17 comes into contact with the surface near the width end of the slab 12 on the cutting start side. The position of the lift truck 3 is set by the cylinder-2, and the height of the cutting blade 8 of each of the tool rests 9 attached to the endless chain 7 is adjusted so as to obtain a predetermined cutting amount.
[0014]
Then, the endless chain 7 is rotated by the drive sprockets 5 and 6 to start cutting. This cutting is performed along the width direction of the slab 12, and when the cutting at that position is completed, the traveling carriage 1 is moved in the longitudinal direction of the slab 12, and the next position is repeatedly cut. The oxide scale and the flaw of a predetermined area are removed. If the removal cannot be completed by one cutting in the width direction, the lifting carriage 3 is lowered by the lifting / lowering cylinder 2, and the cutting is repeated until the removal is completed.
[0015]
In an existing cutting machine, for example, a plano-mirror, the slab must be reciprocated with respect to the blade, so that idle time is generated in the process of returning the slab. In the slab cutting machine of the present invention, the width of the slab 12 is reduced. In the direction, cutting can be performed while moving the cutting blade 8 only in one direction, and in the longitudinal direction of the slab 12, cutting can be performed while moving the traveling vehicle 1 in only one direction, so that cutting can be performed continuously without loss time. It can be expected that the cutting ability will be greatly improved compared to existing cutting machines.
[0016]
【The invention's effect】
According to the present invention, the oxidized scale and the flaws on the slab surface can be removed efficiently without causing any quality abnormality.
[Brief description of the drawings]
FIG. 1 is a front view of a slab cutting machine of the present invention.
FIG. 2 is a side view of the slab cutting machine of the present invention.
3A and 3B are diagrams showing a connection state between an endless chain and a tool post, wherein FIG. 3A is a plan view and FIG. 3B is a front view.
[Explanation of symbols]
1 traveling trolley 2 lifting cylinder
REFERENCE SIGNS LIST 3 lifting truck 4 cutting mechanism 5, 6 driving sprocket 7 endless chain 8 cutting blade 9 tool post 10 tension applying device 11 fixing bed 12 slab 13 rail 14 reaction force receiving frame 15 cutting waste discharge 16 Receiving Cutting Debris 17 Copy Roller 21 Link 22 Link Pin 23 Slide Liner

Claims (1)

被切削スラブをまたぎスラブの長手方向に沿って走行する走行台車と、該走行台車に取り付けられた昇降シリンダ−により昇降する昇降台車と、該昇降台車に取り付けられた切削機構とからなり、該切削機構は、回転軸が水平かつスラブの長手方向と平行となるように配置された1対の駆動スプロケット、該1対のスプロケット間に掛け回された無端チェ−ンと、該無端チェ−ンの進行方向と切削刃の切削方向が一致するように、チェ−ンに一定間隔で取り付けられた複数の刃物台とを有することを特徴とするスラブ切削機。The cutting machine comprises a traveling vehicle that travels along the longitudinal direction of the slab across the slab to be cut, an elevating vehicle that is elevated by an elevating cylinder that is attached to the traveling vehicle, and a cutting mechanism that is attached to the elevating vehicle. The mechanism includes a pair of drive sprockets arranged such that the rotation axis is horizontal and parallel to the longitudinal direction of the slab, an endless chain wound between the pair of sprockets, and an endless chain. A slab cutting machine comprising a plurality of tool rests attached to a chain at regular intervals so that a traveling direction and a cutting direction of a cutting blade coincide with each other.
JP2002176630A 2002-06-18 2002-06-18 Slab cutting machine Pending JP2004017224A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2002176630A JP2004017224A (en) 2002-06-18 2002-06-18 Slab cutting machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2002176630A JP2004017224A (en) 2002-06-18 2002-06-18 Slab cutting machine

Publications (1)

Publication Number Publication Date
JP2004017224A true JP2004017224A (en) 2004-01-22

Family

ID=31174877

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2002176630A Pending JP2004017224A (en) 2002-06-18 2002-06-18 Slab cutting machine

Country Status (1)

Country Link
JP (1) JP2004017224A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009045636A (en) * 2007-08-16 2009-03-05 Nippon Steel Corp Method of grinding slab, slab for hot rolling and method of manufacturing steel sheet using them
JP2014121744A (en) * 2012-12-20 2014-07-03 Nippon Steel & Sumitomo Metal Slab support surface plate
CN110744115A (en) * 2019-10-25 2020-02-04 江苏山海新型建材股份有限公司 Novel planing device for building material manufacturing

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009045636A (en) * 2007-08-16 2009-03-05 Nippon Steel Corp Method of grinding slab, slab for hot rolling and method of manufacturing steel sheet using them
JP2014121744A (en) * 2012-12-20 2014-07-03 Nippon Steel & Sumitomo Metal Slab support surface plate
CN110744115A (en) * 2019-10-25 2020-02-04 江苏山海新型建材股份有限公司 Novel planing device for building material manufacturing

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