JP2018167916A - Method and device for conveying steel plate - Google Patents

Method and device for conveying steel plate Download PDF

Info

Publication number
JP2018167916A
JP2018167916A JP2017064361A JP2017064361A JP2018167916A JP 2018167916 A JP2018167916 A JP 2018167916A JP 2017064361 A JP2017064361 A JP 2017064361A JP 2017064361 A JP2017064361 A JP 2017064361A JP 2018167916 A JP2018167916 A JP 2018167916A
Authority
JP
Japan
Prior art keywords
steel plate
pinch roll
skew
pinch
steel sheet
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
JP2017064361A
Other languages
Japanese (ja)
Inventor
悠人 則武
Yuto Noritake
悠人 則武
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 JP2017064361A priority Critical patent/JP2018167916A/en
Publication of JP2018167916A publication Critical patent/JP2018167916A/en
Pending legal-status Critical Current

Links

Images

Landscapes

  • Controlling Sheets Or Webs (AREA)
  • Registering Or Overturning Sheets (AREA)

Abstract

To provide a method and device for conveying a steel plate capable of conveying a steel plate without skewing by an inexpensive method.SOLUTION: When conveying a steel plate 2 by using first pinch rolls 5a, 5b restraining one end side in the width direction of the steel plate 2 and second pinch rolls 5c, 5d restraining the other end side in the width direction of the steel plate 2, a skewed state of the steel plate 2 with respect to the conveying direction is detected and the number of rotations of at least one of the first pinch rolls 5a, 5b and the second pinch rolls 5c, 5d is corrected so that the number of rotations of the first pinch rolls 5a, 5b is to be different from that of the second pinch rolls 5c, 5d according to the skewed state.SELECTED DRAWING: Figure 1

Description

本発明は、鋼板の搬送方法及び搬送装置に関する。   The present invention relates to a steel sheet transport method and a transport apparatus.

厚鋼板の製造ラインでは、熱間圧延された厚鋼板を所定の長さに剪断する剪断精整処理が行われる。この剪断精整処理では、処理を行う剪断機の上流側及び下流側に配されたピンチロールで厚鋼板を拘束しながら搬送することで、剪断機に対する所定の剪断位置に厚鋼板を配する。このピンチロールは、通常、厚鋼板の巾方向の両側にそれぞれ設けられ、厚鋼板の巾方向両端側をそれぞれ拘束しながら回転することで、厚鋼板を搬送する。そして、剪断位置に配された厚鋼板を、剪断機を用いて剪断することで、所定の長さの厚鋼板を製造する。   In a thick steel plate production line, a shearing and refining process is performed in which a hot-rolled thick steel plate is sheared to a predetermined length. In this shear refining treatment, the thick steel plate is arranged at a predetermined shear position with respect to the shearing device by conveying the thick steel plate while being restrained by the pinch rolls arranged on the upstream side and the downstream side of the shearing machine to be processed. This pinch roll is normally provided on both sides in the width direction of the thick steel plate, and conveys the thick steel plate by rotating while restricting both ends in the width direction of the thick steel plate. And the thick steel plate of predetermined length is manufactured by shearing the thick steel plate distribute | arranged to the shearing position using a shearing machine.

このような剪断精整処理では、ピンチロールに磨耗等が生じてしまうと、厚鋼板が斜行した状態で搬送されることとなる。厚鋼板が斜行した状態で搬送されると、斜行量が大きい場合には、厚鋼板が搬送設備の周辺設備に衝突し、設備破壊につながるおそれがある。また、厚鋼板が斜行した状態で剪断が行われると、剪断後の厚鋼板が、断面不良（巾方向への剪断時）や直角度不良（長さ方向への剪断時）となり、品質不合格となる場合がある。
搬送される厚鋼板の斜行状態を調整する方法として、例えば特許文献１には、搬送ローラ上の一部に複数のピンチロールを設け、搬送ロールとピンチロールとの回転軸に角度を設ける搬送装置が開示されている。 In such a shearing and refining process, if the pinch roll is worn or the like, the thick steel plate is conveyed in a skewed state. If the thick steel plate is transported in a skewed state, if the skew amount is large, the thick steel plate may collide with peripheral equipment of the transport equipment, which may lead to equipment destruction. In addition, if shearing is performed in a state in which the thick steel plate is skewed, the thick steel plate after shearing becomes defective in cross section (when shearing in the width direction) or defective in perpendicularity (when shearing in the length direction), resulting in poor quality. May pass.
As a method for adjusting the skew state of a thick steel plate to be conveyed, for example, in Patent Document 1, a plurality of pinch rolls are provided on a part of a conveying roller, and an angle is provided on the rotation axis of the conveying roll and the pinch roll. An apparatus is disclosed.

特開平６−１２６３１９号公報JP-A-6-126319

ところで、特許文献１に記載の方法では、厚鋼板の斜行を防止することはできるものの、一対のピンチロールで厚鋼板の巾方向両端側をそれぞれ拘束しながら搬送する既存の搬送設備に適用する際には、改造コストが増大となることが問題であった。
そこで、本発明は、上記の課題に着目してなされたものであり、安価な方法で鋼板を斜行させずに搬送することができる鋼板の搬送方法及び搬送装置を提供することを目的としている。 By the way, in the method of patent document 1, although skew feeding of a thick steel plate can be prevented, it applies to the existing conveyance equipment which conveys, restraining the width direction both ends of a thick steel plate with a pair of pinch rolls, respectively. In some cases, the cost of remodeling increases.
Then, this invention is made | formed paying attention to said subject, and it aims at providing the conveying method and conveying apparatus of a steel plate which can convey a steel plate without making it skew by an inexpensive method. .

本発明の一態様によれば、鋼板の巾方向一端側を拘束する第１のピンチロールと、上記鋼板の巾方向他端側を拘束する第２のピンチロールとを用いて上記鋼板を搬送する際に、上記鋼板の搬送方向に対する斜行状態を検出し、上記斜行状態に応じて、上記第１のピンチロールと上記第２のピンチロールとの回転数に差が生じるように、上記第１のピンチロール及び上記第２のピンチロールの少なくとも一方の回転数の補正をすることを特徴とする鋼板の搬送方法が提供される。   According to one aspect of the present invention, the steel sheet is conveyed using a first pinch roll that restrains one end in the width direction of the steel sheet and a second pinch roll that restrains the other end in the width direction of the steel sheet. In this case, the skew state with respect to the conveying direction of the steel sheet is detected, and the first pinch roll and the second pinch roll have a rotational speed difference according to the skew state, so that the difference occurs in the rotation speed. There is provided a method of conveying a steel sheet, wherein the rotational speed of at least one of one pinch roll and the second pinch roll is corrected.

本発明の一態様によれば、鋼板の巾方向一端側を拘束し、上記鋼板を搬送する上下一対の第１のピンチロールと、上記鋼板の巾方向他端側を拘束し、上記鋼板を搬送する上下一対の第２のピンチロールと、上記鋼板の搬送方向に対する斜行状態を検出する検出器と、上記斜行状態に応じて、上記第１のピンチロールと上記第２のピンチロールとの回転数に差が生じるように、上記第１のピンチロール及び上記第２のピンチロールの少なくとも一方の回転数の補正をする制御部と、を備えることを特徴とする鋼板の搬送装置が提供される。   According to one aspect of the present invention, one end of the steel sheet in the width direction is constrained and the pair of upper and lower first pinch rolls that convey the steel sheet, and the other end in the width direction of the steel sheet is constrained and the steel sheet is conveyed. A pair of upper and lower second pinch rolls, a detector for detecting a skew state with respect to the conveying direction of the steel sheet, and depending on the skew state, the first pinch roll and the second pinch roll There is provided a steel sheet conveying apparatus comprising: a control unit that corrects the rotational speed of at least one of the first pinch roll and the second pinch roll so as to cause a difference in rotational speed. The

本発明の一態様によれば、安価な方法で鋼板を斜行させずに搬送することができる鋼板の搬送方法及び搬送装置が提供される。   According to one embodiment of the present invention, a steel plate transport method and a transport device that can transport a steel plate without skewing by an inexpensive method are provided.

本発明の一実施形態に係る鋼板の搬送装置を示す斜視図である。It is a perspective view which shows the conveying apparatus of the steel plate which concerns on one Embodiment of this invention. 搬送装置を示す一部側面図である。It is a partial side view which shows a conveying apparatus. 搬送装置を示す構成図である。It is a block diagram which shows a conveying apparatus. 本発明の一実施形態に係る鋼板の搬送装置を示すフローチャートである。It is a flowchart which shows the conveying apparatus of the steel plate which concerns on one Embodiment of this invention. 鋼板の搬送状態を示す平面図である。It is a top view which shows the conveyance state of a steel plate. 斜行した状態の鋼板の搬送状態を示す平面図である。It is a top view which shows the conveyance state of the steel plate of the skewed state.

以下の詳細な説明では、本発明の完全な理解を提供するように、本発明の実施形態を例示して多くの特定の細部について説明する。しかしながら、かかる特定の細部の説明がなくても１つ以上の実施態様が実施できることは明らかであろう。また、図面は、簡潔にするために、周知の構造及び装置が略図で示されている。   In the following detailed description, numerous specific details are set forth, illustrating embodiments of the present invention, in order to provide a thorough understanding of the present invention. However, it will be apparent that one or more embodiments may be practiced without such specific details. In the drawings, well-known structures and devices are schematically shown for simplicity.

＜鋼板の搬送設備＞
図１〜図３を参照して、本発明の一実施形態に係る鋼板の搬送設備１の構成について説明する。本実施形態において、搬送される鋼板２は熱間圧延された板厚が３ｍｍ以上の厚鋼板である。搬送設備１は、厚鋼板の製造ラインの一つである剪断精整処理が行われる剪断精整ラインに設けられる。剪断精整ラインには、鉛直方向であるｚ軸方向に刃を昇降可能に構成され、鋼板２を剪断する剪断機３が設けられる。簡便のため、図１においては剪断機３の刃のみを示している。なお、図１〜図３において、ｘ軸及びｙ軸は互いに直交する水平方向に平行な軸であり、ｚ軸はｘ軸及びｙ軸にそれぞれ直行する鉛直方向である。また、ｙ軸正方向は、鋼板２の搬送方向である。搬送設備１は、剪断機３によって剪断精整処理される所定の剪断位置まで、厚鋼板２をｙ軸正方向側へと搬送する。 <Conveying equipment for steel plate>
With reference to FIGS. 1-3, the structure of the conveyance equipment 1 of the steel plate which concerns on one Embodiment of this invention is demonstrated. In this embodiment, the steel plate 2 to be conveyed is a thick steel plate having a hot-rolled plate thickness of 3 mm or more. The conveyance facility 1 is provided in a shearing conditioning line that performs shearing conditioning processing, which is one of the production lines for thick steel plates. The shearing adjustment line is provided with a shearing machine 3 configured to shear the steel plate 2 so that the blade can be moved up and down in the vertical z-axis direction. For the sake of simplicity, only the blade of the shearing machine 3 is shown in FIG. 1 to 3, the x-axis and the y-axis are axes parallel to the horizontal direction orthogonal to each other, and the z-axis is a vertical direction orthogonal to the x-axis and the y-axis, respectively. Further, the positive y-axis direction is the conveyance direction of the steel plate 2. The conveyance facility 1 conveys the thick steel plate 2 to the y axis positive direction side to a predetermined shearing position where the shearing and adjusting process is performed by the shearing machine 3.

搬送設備１は、一対の検出器４ａ，４ｂと、一対の第１のピンチロール５ａ，５ｂと、一対の第２のピンチロール５ｃ，５ｄと、複数の搬送ロール６と、４つの回転制御装置７ａ〜７ｄと、制御部８とを備える。
一対の検出器４ａ，４ｂは、鋼板２の巾方向両端の位置である巾方向位置を検出する装置であり、一対の枠体４０ａ，４０ｂと、複数の検出部４１ａ，４１ｂとを有する。一対の枠体４０ａ，４０ｂは、搬送される鋼板２を跨いで設けられる門型の部材である。枠体４０ａは、剪断機３よりも鋼板２の搬送方向上流側となるｙ軸負方向側に設けられる。一方、４０ｂは、剪断機３よりも鋼板２の搬送方向下流側となるｙ軸正方向側に設けられる。複数の検出部４１ａ，４１ｂは、一対の枠体４０ａ，４０ｂに、ｘ軸方向に並んで同じ数だけそれぞれ設けられる光学式のエリアセンサである。複数の検出部４１ａ，４１ｂは、ｚ軸負方向側を通過する鋼板２を検出することで、剪断機３よりも上流側及び下流側における鋼板２の巾方向位置を検出する。ここで、搬送方向であるｙ軸方向に対して、鋼板２の長さ方向が傾いた状態を斜行した状態といい、斜行の程度を斜行量ともいう。本実施形態では、一対の検出器４ａ，４ｂによる鋼板２の巾方向位置と、一対の検出器４ａ，４ｂの離間距離とから、斜行量となるｙ軸方向に対する鋼板２の長さ方向の傾きの角度を算出することができる。 The transport facility 1 includes a pair of detectors 4a and 4b, a pair of first pinch rolls 5a and 5b, a pair of second pinch rolls 5c and 5d, a plurality of transport rolls 6, and four rotation control devices. 7a-7d and the control part 8 are provided.
The pair of detectors 4a and 4b is a device that detects the width direction positions that are positions at both ends in the width direction of the steel plate 2, and includes a pair of frame bodies 40a and 40b and a plurality of detection units 41a and 41b. The pair of frame bodies 40a and 40b are portal-shaped members provided across the steel plate 2 to be conveyed. The frame body 40a is provided on the y-axis negative direction side that is upstream of the shearing machine 3 in the conveying direction of the steel plate 2. On the other hand, 40b is provided on the y-axis positive direction side, which is downstream of the shearing machine 3 in the conveying direction of the steel plate 2. The plurality of detection units 41a and 41b are optical area sensors provided in the same number on the pair of frame bodies 40a and 40b in the x-axis direction. The plurality of detection units 41 a and 41 b detect the steel plate 2 passing through the z-axis negative direction side, thereby detecting the width direction position of the steel plate 2 upstream and downstream of the shearing machine 3. Here, the state in which the length direction of the steel plate 2 is inclined with respect to the y-axis direction that is the conveying direction is referred to as a skewed state, and the degree of skewing is also referred to as a skewing amount. In the present embodiment, from the position in the width direction of the steel plate 2 by the pair of detectors 4a and 4b and the distance between the pair of detectors 4a and 4b, the length direction of the steel plate 2 with respect to the y-axis direction as the skew amount The angle of inclination can be calculated.

一対の第１のピンチロール５ａ，５ｂは、ロール部５０ａ，５０ｂと、減速機５１ａ，５１ｂと、モータ５２ａ，５２ｂと、速度センサ５３ａ，５３ｂとをそれぞれ有する。ロール部５０ａ，５０ｂは、搬送される鋼板２のｘ軸負方向側に配され、鋼板２のｘ軸負方向側の領域を間に挟んで、ｚ軸方向に側面が対向して配される。また、ロール部５０ａ，５０ｂは、減速機５１ａ，５１ｂを介して伝達されるモータ５２ａ，５２ｂの駆動力を受けて、ｘ軸平行な回転軸を中心に回転可能に構成される。速度センサ５３ａ〜５３ｄは、モータ５２ａ〜５２ｄの回転速度をそれぞれ測定し、測定結果を４つの回転制御装置７ａ〜７ｄへとそれぞれ送信する。また、第１のピンチロール５ａには、不図示の昇降機構が設けられ、ｚ軸方向に昇降可能に構成される。   The pair of first pinch rolls 5a and 5b have roll portions 50a and 50b, speed reducers 51a and 51b, motors 52a and 52b, and speed sensors 53a and 53b, respectively. The roll parts 50a and 50b are arranged on the x-axis negative direction side of the steel plate 2 to be conveyed, and the side surfaces are arranged opposite to each other in the z-axis direction with a region on the x-axis negative direction side of the steel plate 2 interposed therebetween. . The roll portions 50a and 50b are configured to be rotatable about a rotation axis parallel to the x-axis upon receiving the driving force of the motors 52a and 52b transmitted via the speed reducers 51a and 51b. The speed sensors 53a to 53d measure the rotational speeds of the motors 52a to 52d, respectively, and transmit the measurement results to the four rotation control devices 7a to 7d, respectively. The first pinch roll 5a is provided with a lifting mechanism (not shown) so as to be movable up and down in the z-axis direction.

一対の第２のピンチロール５ｃ，５ｄは、一対の第１のピンチロール５ａ，５ｂと同様に、ロール部５０ｃ，５０ｄと、減速機５１ｃ，５１ｄと、モータ５２ｃ，５２ｄと、速度センサ５３ｃ，５３ｄとをそれぞれ有する。ロール部５０ｃ，５０ｄは、搬送される鋼板２のｘ軸正方向側に配され、鋼板２のｘ軸正方向側の領域を間に挟んで、ｚ軸方向に側面が対向して配される。また、ロール部５０ｃ，５０ｄは、ロール部５０ａ，５０ｂと同様に、減速機５１ｃ，５１ｄを介して伝達されるモータ５２ｃ，５２ｄの駆動力を受けて、ｘ軸平行な回転軸を中心に回転可能に構成される。速度センサ５３ｃ，５３ｄは、モータ５２ｃ，５２ｄの回転速度つまり回転数をそれぞれ測定し、測定結果を制御部８へと送信する。また、第２のピンチロール５ｃには、不図示の昇降機構が設けられ、ｚ軸方向に昇降可能に構成される。   Like the pair of first pinch rolls 5a and 5b, the pair of second pinch rolls 5c and 5d includes roll portions 50c and 50d, speed reducers 51c and 51d, motors 52c and 52d, speed sensors 53c, 53d. The roll parts 50c and 50d are arranged on the x-axis positive direction side of the steel plate 2 to be conveyed, and the side surfaces are arranged opposite to each other in the z-axis direction with a region on the x-axis positive direction side of the steel plate 2 interposed therebetween. . The roll parts 50c and 50d receive the driving force of the motors 52c and 52d transmitted through the speed reducers 51c and 51d and rotate around the rotation axis parallel to the x axis, similarly to the roll parts 50a and 50b. Configured to be possible. The speed sensors 53c and 53d measure the rotational speeds, that is, the rotational speeds of the motors 52c and 52d, respectively, and transmit the measurement results to the control unit 8. The second pinch roll 5c is provided with a lifting mechanism (not shown) so as to be movable up and down in the z-axis direction.

一対の第１のピンチロール５ａ，５ｂ及び一対の第２のピンチロール５ｃ，５ｄでは、ｚ軸正方向側のロール部５０ａ，５０ｃを下降させて所定の圧力で鋼板２に押し付けることで、鋼板２のｘ軸方向の両端側をそれぞれ上下に配されたロール部５０ａ〜５０ｄで拘束（狭持）する。そして、ロール部５０ａ，５０ｃを押し付けた状態でロール部５０ａ〜５０ｄが任意の回転数で回転することで、鋼板２の搬送が行われる。なお、モータ５２ａ，５２ｂの回転数及びモータ５２ｃ，５２ｄの回転数は、それぞれ個別に調整可能に構成される。   In the pair of first pinch rolls 5a, 5b and the pair of second pinch rolls 5c, 5d, the roll portions 50a, 50c on the z-axis positive direction side are lowered and pressed against the steel plate 2 with a predetermined pressure, thereby The two ends in the x-axis direction of 2 are constrained (held) by roll portions 50a to 50d that are arranged vertically. And the steel plates 2 are conveyed because roll part 50a-50d rotates with arbitrary rotation speed in the state which pressed roll part 50a, 50c. The rotational speeds of the motors 52a and 52b and the rotational speeds of the motors 52c and 52d are configured to be individually adjustable.

複数の搬送ロール６は、ｘ軸方向に平行な回転軸で自由回転可能に構成されるロールであり、鋼板２の搬送面となるｚ軸正方向側の高さがロール部５０ｂ，５０ｄと同じ高さになるように構成される。また、複数の搬送ロール６は、ロール部５０ｂ，５０ｄを挟んで、ｙ軸方向に所定間隔で並んで設けられる。
４つの回転制御装置７ａ〜７ｄは、電圧・周波数制御部７０ａ〜７０ｄと、コンバータ７１ａ〜７１ｄと、インバータ７２ａ〜７２ｄとをそれぞれ有する。４つの回転制御装置７ａ〜７ｄでは、各モータ５２ａ〜５２ｄの回転数が制御部８から取得される回転数となるように、電圧・周波数制御部７０ａ〜７０ｄ及びインバータ７２ａ〜７２ｄで周波数や電圧が調整された交流電圧がモータ５２ａ〜５２ｄへとそれぞれ出力される。なお、４つの電圧・周波数制御部７０ａ〜７０ｄは、速度センサ５３ａ〜５３ｄで測定される回転数から各モータ５２ａ〜５２ｄの回転数が目標の値となるようにフィードバック制御をする。 The plurality of transport rolls 6 are configured to be freely rotatable with a rotation axis parallel to the x-axis direction, and the height on the z-axis positive direction side serving as the transport surface of the steel plate 2 is the same as that of the roll portions 50b and 50d. Configured to be height. The plurality of transport rolls 6 are provided side by side at predetermined intervals in the y-axis direction with the roll portions 50b and 50d interposed therebetween.
The four rotation control devices 7a to 7d include voltage / frequency control units 70a to 70d, converters 71a to 71d, and inverters 72a to 72d, respectively. In the four rotation control devices 7a to 7d, the frequency / voltage control units 70a to 70d and the inverters 72a to 72d use the frequency and voltage so that the rotation numbers of the motors 52a to 52d are the rotation numbers acquired from the control unit 8. The AC voltage adjusted is output to the motors 52a to 52d. The four voltage / frequency control units 70a to 70d perform feedback control so that the rotational speeds of the motors 52a to 52d become target values based on the rotational speeds measured by the speed sensors 53a to 53d.

制御部８は、ＰＬＣ（programmable logic controller）等の制御装置であり、判定部８０と、算出部８１とを有する。判定部８０は、一対の検出器４ａ，４ｂの検出結果に基づいて、鋼板２が斜行しているか否かを判定する。算出部８１は、予め設定された或いは上位の計算機などから取得した基準の搬送速度に応じた回転数と、判定部８０での判定結果とから、モータ８１ａ〜８１ｄの回転数を算出し、算出される回転数を４つの電圧・周波数制御部７０ａ〜７０ｄにそれぞれ送信する。そして、電圧・周波数制御部７０ａ〜７０ｄでは、算出部８１から取得される回転数となるようにモータ８１ａ〜８１ｄの制御が行われる。   The control unit 8 is a control device such as a PLC (programmable logic controller), and includes a determination unit 80 and a calculation unit 81. The determination unit 80 determines whether or not the steel plate 2 is skewed based on the detection results of the pair of detectors 4a and 4b. The calculation unit 81 calculates the rotation number of the motors 81a to 81d from the rotation number corresponding to the reference conveyance speed set in advance or acquired from a host computer and the determination result in the determination unit 80, and calculates The rotation speed to be transmitted is transmitted to each of the four voltage / frequency control units 70a to 70d. In the voltage / frequency control units 70a to 70d, the motors 81a to 81d are controlled so as to have the rotation speed acquired from the calculation unit 81.

＜鋼板の搬送方法＞
次に、本実施形態に係る鋼板２の搬送方法について説明する。まず、上流側から鋼板２が送られてくると、第１のピンチロール５ａ，５ｂ及び第２のピンチロール５ｃ，５ｄでは、図５に示すように基準の搬送速度（磨耗等がない状態を仮定した場合におけるロール部５０ａ〜５０ｄの周速Ｖ１に相当）に応じた回転数で搬送が行われる。次いで、鋼板２の搬送方向下流側の先端が検出器４ｂを通過することで、図４のフローチャートに示す搬送処理が開始される。 <Conveying method of steel plate>
Next, the conveyance method of the steel plate 2 according to the present embodiment will be described. First, when the steel plate 2 is sent from the upstream side, the first pinch rolls 5a and 5b and the second pinch rolls 5c and 5d are in a state where there is no reference conveyance speed (no wear or the like) as shown in FIG. conveying at a rotational speed corresponding to or equivalent) to the circumferential speed V 1 of the roll unit 50a~50d is performed when it is assumed. Subsequently, the conveyance process shown to the flowchart of FIG. 4 is started because the front-end | tip downstream of the conveyance direction of the steel plate 2 passes the detector 4b.

図４に示す搬送処理では、まず、一対の検出器４ａ，４ｂは、鋼板２の巾方向位置を検出する（Ｓ１００）。この際、一対の検出器４ａ，４ｂは、一対の検出器４ａ，４ｂの設置位置における鋼板２の巾方向両端の位置を検出する。そして、一対の検出器４ａ，４ｂは、検出結果を判定部８０に送信する。
次いで、判定部８０は、ステップＳ１００の検出結果から、鋼板２の斜行量が基準よりも大きいか否かを判定することで、鋼板２が斜行しているか否かを判定する（Ｓ１０２）。斜行量の基準は、剪断機３による剪断精整処理において製品の品質上許容できる斜行量に応じて決定される。また、斜行量が基準よりも大きいか否かの判定は、検出器４ａにおいて検出される鋼板２の巾方向の少なくとも一方の端の、検出器４ｂにおいて検出される同じ側の巾方向の端に対するズレ量が、斜行量 の基準に応じた値よりも大きいか否かによって判定される。具体的には、例えば、検出器４ａで検出される鋼板２のｘ軸正方向側の端の位置に対して、検出器４ｂで検出される鋼板２のｘ軸正方向側の端の位置が、検出部４１ａ，４１ｂの設置間隔で検出部２個分以上のズレがある場合には、ズレ量が大きい、つまり斜行量が基準よりも大きいと判定されてもよい。さらに、ステップＳ１０２では、判定部８０は、判定結果を算出部８１に送信する。 In the transport process shown in FIG. 4, first, the pair of detectors 4a and 4b detect the width direction position of the steel plate 2 (S100). At this time, the pair of detectors 4a and 4b detect positions at both ends in the width direction of the steel plate 2 at the installation positions of the pair of detectors 4a and 4b. Then, the pair of detectors 4 a and 4 b transmits the detection result to the determination unit 80.
Next, the determination unit 80 determines whether or not the steel plate 2 is skewed by determining whether or not the skew amount of the steel plate 2 is larger than the reference from the detection result of step S100 (S102). . The reference for the amount of skew is determined according to the amount of skew that is acceptable in terms of product quality in the shearing and refining process by the shearing machine 3. Further, whether or not the skew amount is larger than the reference is determined by determining at least one end in the width direction of the steel plate 2 detected by the detector 4a and the end in the width direction on the same side detected by the detector 4b. Judgment is made based on whether or not the deviation amount is larger than the value corresponding to the skew amount criterion. Specifically, for example, the position of the end on the x-axis positive direction side of the steel plate 2 detected by the detector 4b is different from the position of the end of the steel plate 2 on the x-axis positive direction side detected by the detector 4a. When there is a deviation of two or more detection units in the installation interval between the detection units 41a and 41b, it may be determined that the deviation amount is large, that is, the skew amount is larger than the reference. Further, in step S <b> 102, the determination unit 80 transmits the determination result to the calculation unit 81.

ステップＳ１０２の判定の結果、鋼板２が斜行していると判定された場合、判定部８０は、鋼板２の斜行方向を判定する（Ｓ１０４）。斜行方向とは、鋼板２の搬送方向の上流側であるｙ軸負方向側に対する、下流側であるｙ軸正方向側の位置のｘ軸方向の相対的なズレ方向である。つまり、鋼板２の上流側に対して下流側がｘ軸正方向側にある場合を、鋼板２がｘ軸正方向側に斜行している状態、鋼板２の上流側に対して下流側がｘ軸負方向側にある場合を、鋼板２がｘ軸負方向側に斜行している状態という。例えば、図６には、鋼板２がｘ軸正方向側に斜行した状態を示す。ステップＳ１０４では、判定部８０は、ステップＳ１００の検出結果から、鋼板２がｘ軸の正負どちらの方向に斜行しているかを判定する。具体的には、判定部８０は、例えば、検出器４ａで検出される鋼板２のｘ軸正方向側の端の位置に対して、検出器４ｂで検出される鋼板２のｘ軸正方向側の端の位置に位置が、ｘ軸の正負どちらの方向にズレているかを判定する。さらに、ステップＳ１０４では、判定部８０は、判定結果を算出部８１に送信する。   As a result of the determination in step S102, when it is determined that the steel plate 2 is skewed, the determination unit 80 determines the skew direction of the steel plate 2 (S104). The skew direction is a relative displacement direction in the x-axis direction of the position on the y-axis positive direction side that is the downstream side with respect to the y-axis negative direction side that is the upstream side in the conveyance direction of the steel plate 2. That is, when the downstream side is on the x-axis positive direction side with respect to the upstream side of the steel plate 2, the steel plate 2 is skewed toward the x-axis positive direction side, and the downstream side is the x-axis with respect to the upstream side of the steel plate 2. The case of being on the negative direction side is referred to as a state where the steel plate 2 is skewed toward the x-axis negative direction side. For example, FIG. 6 shows a state in which the steel plate 2 is skewed toward the positive x-axis direction. In step S104, the determination unit 80 determines whether the steel plate 2 is skewed in the positive or negative direction of the x axis from the detection result in step S100. Specifically, the determination unit 80 is, for example, the x-axis positive direction side of the steel plate 2 detected by the detector 4b with respect to the position of the end on the x-axis positive direction side of the steel plate 2 detected by the detector 4a. It is determined whether the position is shifted in the positive or negative direction of the x-axis at the position of the end of. In step S <b> 104, the determination unit 80 transmits the determination result to the calculation unit 81.

ステップＳ１０４の後、算出部８１は、ステップＳ１０２，Ｓ１０４の判定結果に基づいて、モータ５２ａ〜５２ｄの回転数を補正する（Ｓ１０６）。この際、回転数算出部８１は、斜行方向側となるモータに対して、反対側のモータの回転数が小さくなるように、斜行方向側のモータの回転数に一定量の補正値を加算することで、第１のピンチロール５ａ，５ｂまたは第２のピンチロール５ｃ，５ｄの回転数の補正を行う。例えば、図６に示すように、基準の搬送速度で鋼板２の搬送している際に、鋼板２がｘ軸正方向側に斜行していた場合、ロール部５０ｃ，５０ｄの周速がＶ１からＶ１＋αに増加するように、斜行方向側となる第２のピンチロール５ｃ，５ｄの回転数が補正される。これにより、第１のピンチロール５ａ，５ｂと第２のピンチロール５ｃ，５ｄとに、搬送速度の差が生じ、鋼板２の斜行が修正されることとなる。 After step S104, the calculation unit 81 corrects the rotational speeds of the motors 52a to 52d based on the determination results of steps S102 and S104 (S106). At this time, the rotation speed calculation unit 81 sets a fixed amount of correction value to the rotation speed of the motor on the skew direction side so that the rotation speed of the motor on the opposite side becomes smaller than that of the motor on the skew direction side. By adding, the rotation speed of the first pinch rolls 5a and 5b or the second pinch rolls 5c and 5d is corrected. For example, as shown in FIG. 6, when the steel plate 2 is skewed in the positive x-axis direction while the steel plate 2 is being transported at the reference transport speed, the peripheral speed of the roll portions 50 c and 50 d is V The rotational speeds of the second pinch rolls 5c and 5d on the skew direction side are corrected so as to increase from 1 to V 1 + α. As a result, a difference in conveying speed occurs between the first pinch rolls 5a and 5b and the second pinch rolls 5c and 5d, and the skew of the steel plate 2 is corrected.

ステップＳ１０２の判定の結果、鋼板２が斜行していると判定された場合及びステップＳ１０６の後、判定部８０は、鋼板２の搬送が終了したか否かが判定される（Ｓ１０８）。鋼板２の搬送の終了は、鋼板２が所定の剪断位置まで搬送されたか否かが、不図示の位置検出センサや鋼板２の搬送距離等から判定されることで検出される。
ステップＳ１０８にて鋼板２の搬送が終了したと判定された場合、搬送装置１による鋼板２の搬送処理が終了する。 As a result of the determination in step S102, when it is determined that the steel plate 2 is skewed and after step S106, the determination unit 80 determines whether the conveyance of the steel plate 2 has been completed (S108). The end of the conveyance of the steel plate 2 is detected by determining whether or not the steel plate 2 has been conveyed to a predetermined shearing position from a position detection sensor (not shown), a conveyance distance of the steel plate 2, and the like.
When it is determined in step S108 that the conveyance of the steel plate 2 has been completed, the conveyance process of the steel plate 2 by the conveyance device 1 is completed.

一方、ステップＳ１０８にて鋼板２の搬送が終了していないと判定された場合、ステップＳ１００以降の処理が繰り返し行われる。この場合、鋼板２は、直前のステップＳ１０６で補正された搬送速度で搬送される。そして、ステップＳ１０６の処理が再度行われる場合には、補正された回転数に対してさらに補正が行われることとなる。
なお、搬送装置１に搬送される前に鋼板２に斜行があることも想定されるため、搬送処理が終了した後、次の新しい鋼板２を搬送する際には、上記の処理と同様に、補正が行われる前の基準の搬送速度で新しい鋼板２の搬送が開始されることが好ましい。 On the other hand, when it determines with conveyance of the steel plate 2 not being complete | finished in step S108, the process after step S100 is performed repeatedly. In this case, the steel plate 2 is transported at the transport speed corrected in the immediately preceding step S106. And when the process of step S106 is performed again, correction | amendment will be further performed with respect to the corrected rotation speed.
In addition, since it is assumed that the steel plate 2 is skewed before being transported to the transport device 1, when the next new steel plate 2 is transported after the transport processing is completed, it is similar to the above processing. It is preferable that the conveyance of the new steel plate 2 is started at the reference conveyance speed before the correction is performed.

＜変形例＞
以上で、特定の実施形態を参照して本発明を説明したが、これら説明によって発明を限定することを意図するものではない。本発明の説明を参照することにより、当業者には、開示された実施形態とともに種々の変形例を含む本発明の別の実施形態も明らかである。従って、特許請求の範囲に記載された発明の実施形態には、本明細書に記載したこれらの変形例を単独または組み合わせて含む実施形態も網羅すると解すべきである。 <Modification>
Although the present invention has been described above with reference to specific embodiments, it is not intended that the present invention be limited by these descriptions. By referring to the description of the present invention, other embodiments of the present invention will be apparent to those skilled in the art, including various modifications along with the disclosed embodiments. Therefore, it should be understood that the embodiments of the present invention described in the claims also include embodiments including these modifications described in the present specification alone or in combination.

例えば、上記実施形態では、搬送装置１は厚鋼板の剪断精整ラインに設けられるとしたが、本発明はかかる例に限定されない。例えば、搬送装置１は、厚鋼板等の鋼板２を搬送する他の処理ラインに設けられてもよい。
また、上記実施形態では、第１のピンチロール５ａ，５ｂ及び第２のピンチロール５ｃ，５ｄは、鋼板２を板厚方向に挟んで設けられる構成としたが、本発明は係る例に限定されない。例えば、第１のピンチロール及び第２のピンチロールは、鋼板２の上側にのみ設けられる構成であってもよい。この場合、鋼板２を挟んで対向する下側には搬送ロール６が設けられ、この２つのピンチロールのロール部と搬送ロール６とで鋼板２を拘束し、２つのピンチロールの回転によって鋼板２を搬送させる構成としてもよい。 For example, in the said embodiment, although the conveying apparatus 1 was provided in the shear adjustment line of the thick steel plate, this invention is not limited to this example. For example, the conveying apparatus 1 may be provided in another processing line that conveys a steel plate 2 such as a thick steel plate.
Moreover, in the said embodiment, although 1st pinch roll 5a, 5b and 2nd pinch roll 5c, 5d were set as the structure which pinches | interposes the steel plate 2 in a plate | board thickness direction, this invention is not limited to the example which concerns. . For example, the structure provided only in the upper side of the steel plate 2 may be sufficient as a 1st pinch roll and a 2nd pinch roll. In this case, a transport roll 6 is provided on the lower side opposite to the steel plate 2, the steel plate 2 is constrained by the roll portions of the two pinch rolls and the transport roll 6, and the steel plate 2 is rotated by the rotation of the two pinch rolls. It is good also as a structure which conveys.

さらに、上記実施形態では、一対の検出器４ａ，４ｂは、剪断機３を挟んで、鋼板２の搬送方向に並んで設けられるとしたが、本発明はかかる例に限定されない。一対の検出器４ａ，４ｂは、剪断機３に搬送される鋼板２の斜行状態を検出できればよく、例えば、剪断機３の搬送方向上流側に２つとも設けられてよい。
さらに、上記実施形態では、複数の検出部４１ａ，４１ｂは、光学式のエリアセンサであるとしたが、本発明はかかる例に限定されない。一対の検出器４ａ，４ｂに設けられる検出部は、鋼板２の巾方向の両端のうち少なくとも一方の端を検出できればよく、例えば、ラインセンサ等の他の光学式のセンサであってもよい。また、一対の検出器４ａ，４ｂに設けられる検出部は、巾方向の一端側の端を検出可能なように、一端側にのみ設けられる構成であってもよい。 Further, in the above embodiment, the pair of detectors 4a and 4b are provided side by side in the conveying direction of the steel plate 2 with the shearing machine 3 interposed therebetween, but the present invention is not limited to such an example. The pair of detectors 4a and 4b only need to be able to detect the skew state of the steel plate 2 conveyed to the shearing machine 3, and for example, two detectors 4a and 4b may be provided on the upstream side of the shearing machine 3 in the conveying direction.
Furthermore, in the said embodiment, although the some detection parts 41a and 41b were optical area sensors, this invention is not limited to this example. The detection part provided in a pair of detectors 4a and 4b should just be able to detect at least one end among the both ends of the width direction of the steel plate 2, for example, may be other optical sensors, such as a line sensor. Moreover, the structure provided in only one end side may be sufficient as the detection part provided in a pair of detector 4a, 4b so that the end of the one end side of the width direction can be detected.

さらに、上記実施形態では、ステップＳ１０２において鋼板２の斜行量の判定をする際に、鋼板２の巾方向のズレ量で判定をするとしたが、本発明はかかる例に限定されない。例えば、一対の検出器４ａ，４ｂの検出結果から算出される搬送方向に対する鋼板２の長さ方向の傾きを斜行量とする等、検出結果に基づいた鋼板２の斜行状態を示す他の測定値や計算値によって判定が行われてもよい。   Furthermore, in the said embodiment, when determining skew amount of the steel plate 2 in step S102, it determined by the amount of shift | offset | difference of the width direction of the steel plate 2, However, This invention is not limited to this example. For example, other values indicating the skew state of the steel sheet 2 based on the detection result, such as the inclination of the length direction of the steel sheet 2 with respect to the conveyance direction calculated from the detection results of the pair of detectors 4a and 4b, are used as the skew amount. The determination may be made based on a measured value or a calculated value.

さらに、上記実施形態では、ステップＳ１０６において、斜行方向側のピンチロールの回転数に一定量の補正値を加算することで補正するとしたが、本発明はかかる例に限定されない。例えば、斜行方向と反対側のピンチロールの回転数から一定量の補正値を減算することで補正をしてもよく、また、両方のピンチロールに対して斜行が解消されるように回転数の加算及び減算をすることで補正をしてもよい。さらに、はじめに斜行方向側のピンチロールの回転数に一定量の補正値を加算することで補正をしていき、繰り返し補正を行った後にピンチロールの回転数が上限となった場合には、斜行方向側のピンチロールの回転数はそのままとして、斜行方向と反対側のピンチロールの回転数から一定量の補正値を減算することで補正をしてもよい。また、補正値は、一定量でなくともよく、斜行量に応じて可変としてもよい。   Further, in the above-described embodiment, in step S106, the correction is performed by adding a fixed amount of correction value to the rotational speed of the pinch roll on the skew direction side, but the present invention is not limited to such an example. For example, the correction may be made by subtracting a certain amount of correction value from the rotation speed of the pinch roll opposite to the skew direction, and the rotation is performed so that the skew is eliminated for both pinch rolls. You may correct | amend by adding and subtracting a number. Furthermore, the correction is first performed by adding a fixed amount of correction value to the rotational speed of the pinch roll on the skew direction side, and when the rotational speed of the pinch roll reaches the upper limit after repeated correction, Correction may be made by subtracting a certain amount of correction value from the rotation speed of the pinch roll on the side opposite to the skew direction, while maintaining the rotation speed of the pinch roll on the skew direction side. The correction value does not have to be a fixed amount, and may be variable according to the skew amount.

＜実施形態の効果＞
（１）本発明の一態様に係る鋼板２の搬送方法は、鋼板２の巾方向一端側を拘束する第１のピンチロール５ａ，５ｂと、鋼板２の巾方向他端側を拘束する第２のピンチロール５ｃ，５ｄとを用いて鋼板２を搬送する際に、鋼板２の搬送方向に対する斜行状態を検出し、斜行状態に応じて、第１のピンチロール５ａ，５ｂと第２のピンチロール５ｃ，５ｄとの回転数に差が生じるように、第１のピンチロール５ａ，５ｂ及び第２のピンチロール５ｃ，５ｄの少なくとも一方の回転数を補正する。
（２）上記（１）の構成において、斜行状態を検出する際に、鋼板の斜行方向を検出し、補正をする際に、第１のピンチロール５ａ，５ｂと第２のピンチロール５ｃ，５ｄのうち、斜行方向側となるピンチロールの回転数が、他方のピンチロールよりも大きくなるように補正をする。 <Effect of embodiment>
(1) The conveyance method of the steel plate 2 which concerns on 1 aspect of this invention is 1st pinch roll 5a, 5b which restrains the width direction one end side of the steel plate 2, and the 2nd which restrains the width direction other end side of the steel plate 2. When the steel plate 2 is transported using the pinch rolls 5c and 5d, the skew state in the transport direction of the steel plate 2 is detected, and the first pinch rolls 5a and 5b and the second pinch rolls 5c and 5d are detected according to the skew state. The rotational speed of at least one of the first pinch rolls 5a and 5b and the second pinch rolls 5c and 5d is corrected so that a difference occurs in the rotational speeds of the pinch rolls 5c and 5d.
(2) In the configuration of (1), the first pinch rolls 5a and 5b and the second pinch roll 5c are detected when the skew direction is detected and corrected when the skew state is detected. , 5d, the correction is performed so that the rotational speed of the pinch roll on the skew direction side is larger than that of the other pinch roll.

（３）本発明の一態様に係る鋼板２の搬送装置は、鋼板２の巾方向一端側を拘束し、鋼板２を搬送する第１のピンチロール５ａ，５ｂと、鋼板２の巾方向他端側を拘束し、鋼板２を搬送する第２のピンチロール５ｃ，５ｄと、鋼板２の搬送方向に対する斜行状態を検出する検出器４ａ，４ｂと、斜行状態に応じて、第１のピンチロール５ａ，５ｂと第２のピンチロール５ｃ，５ｄとの回転数に差が生じるように、第１のピンチロール５ａ，５ｂ及び第２のピンチロール５ｃ，５ｄの少なくとも一方の回転数を補正する制御部８と、を備える。
上記（１）〜（３）の構成によれば、鋼板２の斜行状態に応じて、鋼板２の第１のピンチロール側の搬送速度と、第２のピンチロール側の搬送速度に差を持たせることで、鋼板２を斜行させずに搬送させることができる。また、上記（１）〜（３）の構成は、簡易な構成の検出器４ａ，４ｂを設け、第１のピンチロール及び第２のピンチロールの回転数を制御すればよいだけなので、既存の設備にも安価に適用することができる。 (3) The conveyance apparatus of the steel plate 2 which concerns on 1 aspect of this invention restrains the width direction one end side of the steel plate 2, the 1st pinch roll 5a, 5b which conveys the steel plate 2, and the width direction other end of the steel plate 2 The second pinch rolls 5c and 5d that restrain the side and transport the steel plate 2; the detectors 4a and 4b that detect the skew state in the transport direction of the steel plate 2; and the first pinch according to the skew state The rotational speed of at least one of the first pinch rolls 5a and 5b and the second pinch rolls 5c and 5d is corrected so that a difference occurs in the rotational speeds of the rolls 5a and 5b and the second pinch rolls 5c and 5d. And a control unit 8.
According to the configuration of (1) to (3), depending on the skew state of the steel plate 2, the difference between the conveyance speed on the first pinch roll side of the steel plate 2 and the conveyance speed on the second pinch roll side is made. By having it, the steel plate 2 can be transported without being skewed. In addition, the configurations (1) to (3) described above are simply provided with detectors 4a and 4b having a simple configuration, and it is only necessary to control the rotation speeds of the first pinch roll and the second pinch roll. It can be applied to equipment at low cost.

１ 搬送装置
２ 鋼板
３ 剪断機
４ａ，４ｂ 検出器
４０ａ，４０ｂ 枠体
４１ａ，４１ｂ 検出部
５ａ，５ｂ 第１のピンチロール
５ｃ，５ｄ 第２のピンチロール
５０ａ〜５０ｄ ロール部
５１ａ〜５１ｄ 減速機
５２ａ〜５２ｄ モータ
５３ａ〜５３ｄ 速度センサ
６ 搬送ロール
７ａ〜７ｄ 回転制御装置
７０ａ〜７０ｄ 電圧・周波数制御部
７１ａ〜７１ｄ コンバータ
７２ａ〜７２ｄ インバータ
８ 制御部
８０ 判定部
８１ 算出部 DESCRIPTION OF SYMBOLS 1 Conveyance apparatus 2 Steel plate 3 Shearing machine 4a, 4b Detector 40a, 40b Frame body 41a, 41b Detection part 5a, 5b 1st pinch roll 5c, 5d 2nd pinch roll 50a-50d Roll part 51a-51d Reduction gear 52a -52d Motor 53a-53d Speed sensor 6 Transport rolls 7a-7d Rotation control device 70a-70d Voltage / frequency control unit 71a-71d Converter 72a-72d Inverter 8 Control unit 80 Determination unit 81 Calculation unit

Claims (3)

鋼板の巾方向一端側を拘束する第１のピンチロールと、前記鋼板の巾方向他端側を拘束する第２のピンチロールとを用いて前記鋼板を搬送する際に、
前記鋼板の搬送方向に対する斜行状態を検出し、
前記斜行状態に応じて、前記第１のピンチロールと前記第２のピンチロールとの回転数に差が生じるように、前記第１のピンチロール及び前記第２のピンチロールの少なくとも一方の回転数の補正をすることを特徴とする鋼板の搬送方法。 When transporting the steel sheet using a first pinch roll that restrains one end side in the width direction of the steel sheet and a second pinch roll that restrains the other end side in the width direction of the steel sheet,
Detecting the skew state with respect to the conveying direction of the steel sheet,
Rotation of at least one of the first pinch roll and the second pinch roll so that a difference occurs in the rotation speed between the first pinch roll and the second pinch roll according to the skew state. A method of conveying a steel sheet, wherein the number is corrected. 前記斜行状態を検出する際に、前記鋼板の斜行方向を検出し、
前記補正をする際に、前記第１のピンチロールと前記第２のピンチロールのうち、前記斜行方向側となるピンチロールの回転数が、他方のピンチロールよりも大きくなるように補正をすることを特徴とする請求項１に記載の鋼板の搬送方法。 When detecting the skew state, detecting the skew direction of the steel sheet,
When performing the correction, the correction is performed so that the rotation speed of the pinch roll on the skew direction side of the first pinch roll and the second pinch roll is larger than that of the other pinch roll. The steel sheet conveying method according to claim 1. 鋼板の巾方向一端側を拘束し、前記鋼板を搬送する上下一対の第１のピンチロールと、
前記鋼板の巾方向他端側を拘束し、前記鋼板を搬送する上下一対の第２のピンチロールと、
前記鋼板の搬送方向に対する斜行状態を検出する検出器と、
前記斜行状態に応じて、前記第１のピンチロールと前記第２のピンチロールとの回転数に差が生じるように、前記第１のピンチロール及び前記第２のピンチロールの少なくとも一方の回転数の補正をする制御部と、
を備えることを特徴とする鋼板の搬送装置。 A pair of upper and lower first pinch rolls that restrains one end side in the width direction of the steel sheet and conveys the steel sheet,
Restraining the other end in the width direction of the steel plate, a pair of upper and lower second pinch rolls that convey the steel plate,
A detector for detecting a skew state with respect to the conveying direction of the steel sheet;
Rotation of at least one of the first pinch roll and the second pinch roll so that a difference occurs in the rotation speed between the first pinch roll and the second pinch roll according to the skew state. A control unit for correcting the number;
A steel sheet conveying apparatus comprising:
JP2017064361A 2017-03-29 2017-03-29 Method and device for conveying steel plate Pending JP2018167916A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2017064361A JP2018167916A (en) 2017-03-29 2017-03-29 Method and device for conveying steel plate

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2017064361A JP2018167916A (en) 2017-03-29 2017-03-29 Method and device for conveying steel plate

Publications (1)

Publication Number Publication Date
JP2018167916A true JP2018167916A (en) 2018-11-01

Family

ID=64019141

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2017064361A Pending JP2018167916A (en) 2017-03-29 2017-03-29 Method and device for conveying steel plate

Country Status (1)

Country Link
JP (1) JP2018167916A (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54111186A (en) * 1978-02-17 1979-08-31 Sumitomo Metal Ind Ltd Method of preventing steel plate from making zigzag movement
JPH01149349U (en) * 1988-04-08 1989-10-16
JPH09216013A (en) * 1996-02-07 1997-08-19 Nippon Steel Corp Method and device for stabilizing shape at the time of coiling hot rolled steel sheet
JP2011050991A (en) * 2009-09-02 2011-03-17 Jfe Steel Corp Equipment for shearing plate, method of controlling meandering of steel plate and method of preventing meandering of steel plate

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54111186A (en) * 1978-02-17 1979-08-31 Sumitomo Metal Ind Ltd Method of preventing steel plate from making zigzag movement
JPH01149349U (en) * 1988-04-08 1989-10-16
JPH09216013A (en) * 1996-02-07 1997-08-19 Nippon Steel Corp Method and device for stabilizing shape at the time of coiling hot rolled steel sheet
JP2011050991A (en) * 2009-09-02 2011-03-17 Jfe Steel Corp Equipment for shearing plate, method of controlling meandering of steel plate and method of preventing meandering of steel plate

Similar Documents

Publication Publication Date Title
KR101084870B1 (en) Web conveyance controlling method, web slip amount measuring means, and web conveyance controlling device
JP4792548B1 (en) Hot rolling equipment and hot rolling method
JP5967031B2 (en) Method and apparatus for correcting the perpendicularity of H-shaped steel flange
KR20100133471A (en) Web conveying apparatus and web conveying control method
JP2008007246A (en) Belt adjusting device, belt adjusting method, and belt conveyance device
JP5776204B2 (en) Looper control device and looper control method
JP2018167916A (en) Method and device for conveying steel plate
JP4907467B2 (en) Grinding method of slab, slab for hot rolling, and manufacturing method of steel plate using them
JPH0648608A (en) Supervision of transfer of print in printing machine
JP2014223972A (en) Meandering suppression and control method
JP2017150973A (en) Apparatus and method for measuring length of steel material, and apparatus and method for manufacturing steel material
JP5348275B2 (en) Slab grinding method and grinding apparatus
JP2004099244A (en) Sheet carrier
KR101320147B1 (en) Side guide automatic control apparatus for preventing strip serpentine movement
EP3896019B1 (en) Sheet transport system
JP4512612B2 (en) Corrugated sheet posture detection device
TWI654043B (en) Divide-cutting control device
JP2799216B2 (en) Chopper folding device
JP4358968B2 (en) Optimal cutting position detector for section steel crop
JP6566012B2 (en) Straightening method for tapered steel sheet
JP7191765B2 (en) Rolling mill meandering suppression method
JP3453957B2 (en) Method and apparatus for rolling section steel
JP6299616B2 (en) Unloading abnormality detection device for steel and unloading abnormality detection method
JPH05116021A (en) Squareness control device for sheared sheet
KR20170070899A (en) Apparatus and method for correcting sheet material

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20181024

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20190809

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20190827

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20191025

A02 Decision of refusal

Free format text: JAPANESE INTERMEDIATE CODE: A02

Effective date: 20200324