JPS63194803A - Method and device for preventing sheet camber in edging press - Google Patents
Method and device for preventing sheet camber in edging pressInfo
- Publication number
- JPS63194803A JPS63194803A JP62029195A JP2919587A JPS63194803A JP S63194803 A JPS63194803 A JP S63194803A JP 62029195 A JP62029195 A JP 62029195A JP 2919587 A JP2919587 A JP 2919587A JP S63194803 A JPS63194803 A JP S63194803A
- Authority
- JP
- Japan
- Prior art keywords
- camber
- board
- press
- rolls
- warpage
- 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.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims description 8
- 238000007688 edging Methods 0.000 title 1
- 239000012530 fluid Substances 0.000 abstract description 8
- 230000002250 progressing effect Effects 0.000 abstract 2
- 238000010586 diagram Methods 0.000 description 4
- 238000005096 rolling process Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
- B21B37/68—Camber or steering control for strip, sheets or plates, e.g. preventing meandering
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/02—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling heavy work, e.g. ingots, slabs, blooms, or billets, in which the cross-sectional form is unimportant ; Rolling combined with forging or pressing
- B21B1/024—Forging or pressing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B15/00—Arrangements for performing additional metal-working operations specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B15/0035—Forging or pressing devices as units
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B2273/00—Path parameters
- B21B2273/02—Vertical deviation, e.g. slack, looper height
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Metal Rolling (AREA)
- Control Of Metal Rolling (AREA)
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野］
本発明はスラブ等の板に板反りが、発生することを防止
するようにした幅圧下プレスにおける板反り防止方法及
びその装置に関するものである。[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a method and device for preventing warpage in a width reduction press, which prevents warpage from occurring in a board such as a slab. .
［従来の技術］
第４図に示すように、スラブ１をプレス金型２により幅
圧下する場合、スラブ１の幅が広く、１回当りの幅圧下
量が大きいと、スラブ１に座屈が生じる。この座屈を防
ぐために、スラブ１を上、下押えロール３，４により押
えることが行われるが、スラブ１の上下面の温度差、各
機械要素のかた、摩耗等により、スラブ１端部に上方或
いは下方への板反りか生じることかある。[Prior Art] As shown in Fig. 4, when the width of the slab 1 is reduced by the press die 2, if the width of the slab 1 is wide and the width reduction amount per time is large, the slab 1 may buckle. arise. In order to prevent this buckling, the slab 1 is held down by upper and lower press rolls 3 and 4, but due to temperature differences between the upper and lower surfaces of the slab 1, the orientation of each mechanical element, wear, etc., the ends of the slab 1 may The board may warp upward or downward.
［発明が解決しようとする問題点］
而して、スラブ１に板反りか生じると、後工程への搬送
時に、スラブ１かローラテーブルにひっかかって搬送不
能になったり、或いは水平圧延機への噛込みができずに
圧延不能になる、等の問題がある。[Problems to be Solved by the Invention] If warpage occurs in the slab 1, the slab 1 may get caught on the roller table and become unable to be transported during transport to the subsequent process, or the slab 1 may be unable to be transported to the horizontal rolling mill. There are problems such as not being able to bite and making it impossible to roll.
本発明は上述の実情に鑑み、スラブ等の板の板反りを防
止することを目的としてなしたものである。The present invention has been made in view of the above-mentioned circumstances, and is intended to prevent warping of plates such as slabs.
［問題点を解決するための手段］
本発明は上、上押えロールにより板を押え、プレス金型
により板の幅圧下を行うようにした幅圧下プレスにおい
て、板に上下方向前れかへの板反りか発生した場合には
、上、上押えロールのうち何れか一方を初期設定位置か
ら板進行方向と平行な方向へオフセットさせ、上、上押
えロールの位置を変えて板の幅圧下を行うものである。[Means for Solving the Problems] The present invention provides a width reduction press in which the plate is held down by upper and upper press rolls and the width of the plate is reduced by a press die. If the board warps, offset one of the upper and upper presser rolls from the initial setting position in a direction parallel to the board's traveling direction, and change the position of the upper and upper presser rolls to reduce the width of the board. It is something to do.
［作 用コ
板反り量と上、上押えロールの圧力偏差から、上、上押
えロールのオフセット量が求められ、該オフセット量か
変更されて板の幅圧下か行われる。[Operation] The offset amount of the upper and upper presser rolls is determined from the amount of warpage of the plate and the pressure deviation of the upper and upper presser rolls, and the offset amount is changed to reduce the width of the plate.
［実 施 例］ 以下、本発明の実施例を図面を参照しつつ説明する。[Example] Embodiments of the present invention will be described below with reference to the drawings.
第１図は本発明の一実施例で、上押えロール３は台車５
に搭載された縦型の流体圧シリンタロにより昇降し得る
ようになっており、台車５はフレーム７上に配設された
水平な流体圧シリンダ８により、スラブ１の進行方向と
平行な方向へ往復動し得るようになっている。又上押え
ロール４は縦型の流体圧シリンダ９により昇降し得るよ
うになっている。FIG. 1 shows an embodiment of the present invention, in which the upper presser roll 3 is
The cart 5 can be raised and lowered by a vertical hydraulic cylinder mounted on the frame 7, and the cart 5 is reciprocated in a direction parallel to the direction of movement of the slab 1 by a horizontal hydraulic cylinder 8 disposed on the frame 7. It is designed to be able to move. Further, the upper presser roll 4 can be raised and lowered by a vertical hydraulic cylinder 9.
スラブ金型２の下流側には、接触式或いは非接触式の検
出器本体ＩＤａ、ｌｏｂ 、板反り全演算器１１を備え
た板反り量検出器１２か設けられ、板反り量検出器１２
は演算制御装置１３に板反り量信号を与え得るようにな
っている。又演算制御装置１３には、許容板反り置設定
器１４が接続されている。On the downstream side of the slab mold 2, a plate warpage amount detector 12 equipped with a contact type or non-contact type detector main body IDa, lob, and a plate warp total calculator 11 is provided.
is capable of giving a plate warpage amount signal to the arithmetic and control device 13. Further, an allowable plate warpage setting device 14 is connected to the arithmetic and control device 13 .
流体圧シリンダ６．９に接続した流体圧管路１５゜１６
には圧力検出器１７．１８が取付けられ、該圧力検出器
１７．１８で検出した圧力信号は比較器１９に与え得る
ようになっており、比較器１９て求めた圧力偏差信号は
演算制御装置１３へ与え得るようになっている。Hydraulic line 15°16 connected to hydraulic cylinder 6.9
A pressure detector 17.18 is attached to the pressure detector 17.18, and the pressure signal detected by the pressure detector 17.18 can be given to a comparator 19, and the pressure deviation signal obtained by the comparator 19 is sent to the arithmetic and control unit. It is now possible to give it to 13.
流体圧シリンダ８に接続した流体圧管路２０にはサーボ
弁２１が取付けられ、前記演算制御装置１３からはサー
ボ弁２１に指令信号を与え得るようになっており、流体
圧シリンダ８に取付けたマクネスケール等の位置検出器
２２て検出した位置信号は、演算制御装置１３ヘフイー
ドバツクし得るようになっている。A servo valve 21 is attached to a fluid pressure pipe line 20 connected to the fluid pressure cylinder 8, and a command signal can be given to the servo valve 21 from the arithmetic and control unit 13. The position signal detected by the position detector 22 can be fed back to the arithmetic and control unit 13.
スラブ１０幅圧下時には、流体圧シリンダ８により、台
車５が移動して上押えロール３かスラブ１の進行方向に
対して所定の位置に位置し、流体圧シリンタロ、９によ
り上、上押えロール３゜４か下降若しくは上昇し、上、
上押えロール３゜４によりスラブ１か挾持され、プレス
金型２によりスラブ１は幅圧下される。When the width of the slab 10 is rolled down, the carriage 5 is moved by the fluid pressure cylinder 8 and positioned at a predetermined position with respect to the traveling direction of the upper presser roll 3 or the slab 1, and the upper presser roll 3 is moved by the hydraulic cylinder 9.゜4 or down or up, up,
The slab 1 is clamped by the upper pressing rolls 3.degree. 4, and the width of the slab 1 is rolled down by the press die 2.
板反り量検出器１２ては、検出器本体１０ａ、 ｌＯｂ
で検出された信号を基に板反り全演算器１１でス ′
ラブ１の板反り量か検出され、その信号は演算制御装置
１３へ送られ、該演算制御装置■３では、板反り量検出
器１２で検出された板反り量と予め許容板反り置設定器
１４により設定された許容板反り量との偏差が演算され
、又圧力検出器１７゜１８で検出された上、上押えロー
ル３．４の圧力は比較器１９に送られて上、上押えロー
ル３，４間の圧力偏差が求められ、該圧力偏差信号は演
算制御装置１３に送られる。The plate warpage amount detector 12 includes a detector main body 10a, lOb.
Based on the signal detected by the plate warpage calculation unit 11,
The amount of board warpage of the rub 1 is detected, and the signal is sent to the arithmetic and control unit 13, where the arithmetic and control unit 3 compares the amount of board warpage detected by the board warpage amount detector 12 with the allowable board warpage setting device in advance. The deviation from the allowable plate warpage amount set by 14 is calculated, and the pressure of the upper presser roll 3.4 is also detected by the pressure detector 17 and 18, and the pressure of the upper presser roll 3.4 is sent to the comparator 19. The pressure deviation between 3 and 4 is determined, and the pressure deviation signal is sent to the arithmetic and control unit 13.
演算制御装置１３には、上、上押えロール３．４の圧力
偏差ＡＰ＋ 、 １ＪＰ２ 、 ΔＰ３に対応して
、第２図（イバＯ）に示す上反りＱＡＨ１下反り一−Ａ
Ｈと上、上押えロール３．４のオフセットｍ＋＃ｉ。The arithmetic and control unit 13 calculates the upward curvature QAH1 and the downward curvature 1-A shown in FIG.
H and upper presser roll 3.4 offset m+#i.
−Ａｉの関係が理論的或いは実験的に求められ、第３図
のグラフに示すような関数が予め人力されている。たた
し、ＡＰ＋ ＞ＡＰ２＞ＡＰ３である。-Ai is determined theoretically or experimentally, and a function as shown in the graph of FIG. 3 is manually created in advance. However, AP+>AP2>AP3.
例えば、板反り量検出器１２て検出された板反り量がＡ
Ｈ＋で、圧力偏差がＡＰ、の場合、演算制御装置１３で
は上、下押えロール３，４のオフセット量＋Ａλ１が求
められる。このため、演算制御装置１３からは、＋Ａｉ
＋に比例した指令信号が出力されてサーボ弁２１に与え
られ、流体圧管路２０を流れる流体が制御され、台車５
は流体圧シリンダ８によりスラブ１の進行方向に対し上
流側へ所要量移動させられ、上、下押えロール３．４の
オフセット量＋ＡＩか下押えロール４の中心を基準とし
て＋ＡＩ＋になるよう制御される。又板反り量がＡＨ＋
で圧力偏差ＡＰ２の場合の上、下押えロール３．４のオ
フセット量は＋Ａｊ２となる（第３図参照）。スラブ１
先端部の板反りが下反りの場合、上押えロール３のオフ
セット方向は、下押えロール４の中心を基準として、上
反りの場合のオフセット方向とは反対方向となる。For example, the amount of plate warp detected by the plate warp amount detector 12 is A
When the pressure is H+ and the pressure deviation is AP, the arithmetic and control unit 13 determines the offset amount +Aλ1 of the upper and lower presser rolls 3 and 4. Therefore, from the arithmetic and control unit 13, +Ai
A command signal proportional to + is output and given to the servo valve 21, and the fluid flowing through the fluid pressure pipe 20 is controlled.
is moved by a required amount to the upstream side with respect to the advancing direction of the slab 1 by the fluid pressure cylinder 8, and is controlled so that the offset amount of the upper and lower presser rolls 3.4 is +AI or +AI+ with the center of the lower presser roll 4 as a reference. Ru. Also, the amount of board warpage is AH+
When the pressure deviation is AP2, the offset amount of the upper and lower presser rolls 3.4 is +Aj2 (see FIG. 3). slab 1
When the plate warpage at the tip is downward, the offset direction of the upper presser roll 3 is opposite to the offset direction when the plate is upwardly warped with respect to the center of the lower presser roll 4 as a reference.
上述のような運転を行うことにより、スラブｌの板反り
は所要の値になるよう制御が行われるため、幅プレス後
のスラブの板反りは少く、板の後工程への搬送や圧延機
への噛込みか不能になることはない。By performing the above-mentioned operation, the warpage of the slab L is controlled to the required value, so the warpage of the slab after width pressing is small, and it is easy to transport the slab to the subsequent process or to the rolling mill. It is not possible to become incapacitated by biting.
なお、本発明は上述の実施例に限定されるものではなく
、下押えロールをスラブ進行方向と平行に移動させるよ
うにしても良いこと、その他、本発明の要旨を逸脱しな
い範囲内で種々変更を加え得ることは勿論である。Note that the present invention is not limited to the above-described embodiments, and the lower presser roll may be moved parallel to the slab advancing direction, and other various changes may be made without departing from the gist of the present invention. Of course, it is also possible to add
［発明の効果コ
本発明の幅圧下プレスにおける板反り防止方法及びその
装置によれば、幅圧下プレスされた板に大きな板反りが
生じることがなく、従って、後工程への板の搬送や圧延
機への板の噛込みに支障か生じることない。[Effects of the Invention] According to the method and device for preventing plate warpage in a width reduction press of the present invention, large plate warpage does not occur in a plate subjected to width reduction pressing, and therefore, it is possible to prevent the plate from being transported to a subsequent process or rolled. There is no problem with the board getting caught in the machine.
第１図は本発明の一実施例の説明図、第２図（イ）（Ｏ
）は上、下押えロールのオフセット量の説明図、第３図
は板反り量と上、下押えロールのオフセット量の関係を
示すグラフ、第４図はスラブを幅圧下プレスする場合の
一般的な説明図である。
図中１はスラブ、２はプレス金型、３は上押えロール、
４は下押えロール、５は台車、６，８゜９は流体圧シリ
ンダ、１２は板反り量検出器、１３は演算制御装置、１
４は許容板反り置設定器、１７゜１８は圧力検出器、１
９は比較器を示す。Figure 1 is an explanatory diagram of one embodiment of the present invention, Figure 2 (A) (O
) is an explanatory diagram of the offset amount of the upper and lower presser rolls, Figure 3 is a graph showing the relationship between the amount of board warpage and the offset amount of the upper and lower presser rolls, and Figure 4 is a general diagram when pressing a slab for width reduction. It is an explanatory diagram. In the figure, 1 is a slab, 2 is a press die, 3 is an upper press roll,
4 is a lower presser roll, 5 is a trolley, 6,8゜9 is a fluid pressure cylinder, 12 is a board warpage amount detector, 13 is an arithmetic and control unit, 1
4 is the allowable plate warpage setting device, 17°18 is the pressure detector, 1
9 indicates a comparator.
Claims (1)
り板の幅圧下を行うようにした幅圧下プレスにおいて、
板に上下方向何れかへの板反りが発生した場合には、上
、下押えロールのうち何れか一方を初期設定位置から板
進行方向と平行な方向へオフセットさせ、上、下押えロ
ールの位置を変えて板の幅圧下を行うことを特徴とする
幅圧下プレスにおける板反り防止方法。 ２）上、下押えロールにより板を押え、プレス金型によ
り板の幅圧下を行うようにした幅圧下プレスにおいて、
板反り量を検出する板反り量検出器と、板反り量検出器
で求めた板反り量及び上、下押えロールの圧力偏差から
上、下押えロールのうち一方を板送り方向と平行な方向
へオフセットさせる量を求め、且つ上、下押えロールの
うち何れか一方を板進行方向へオフセットさせる装置に
対して指令を与える演算制御装置を設けたことを特徴と
する幅圧下プレスにおける板反り防止装置。[Claims] 1) In a width reduction press in which the plate is held down by upper and lower press rolls and the width of the plate is reduced by a press die,
If the board warps in either the vertical direction, offset one of the upper and lower presser rolls from the initial setting position in a direction parallel to the direction of board movement, and adjust the position of the upper and lower presser rolls. A method for preventing warping of a board in a width reduction press, characterized by performing width reduction of the board by changing the width of the board. 2) In a width reduction press in which the plate is held down by upper and lower press rolls and the width of the plate is reduced by a press die,
A board warpage amount detector detects the amount of board warpage, and from the board warpage amount determined by the board warpage amount detector and the pressure deviation of the top and bottom press rolls, one of the top and bottom press rolls is moved in a direction parallel to the board feeding direction. A method for preventing sheet warpage in a width reduction press, characterized in that it is equipped with an arithmetic control device that determines the amount of offset to the sheet and gives a command to a device that offsets either one of the upper and lower press rolls in the sheet traveling direction. Device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62029195A JPH0698362B2 (en) | 1987-02-10 | 1987-02-10 | Plate warp prevention device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62029195A JPH0698362B2 (en) | 1987-02-10 | 1987-02-10 | Plate warp prevention device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63194803A true JPS63194803A (en) | 1988-08-12 |
| JPH0698362B2 JPH0698362B2 (en) | 1994-12-07 |
Family
ID=12269411
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62029195A Expired - Fee Related JPH0698362B2 (en) | 1987-02-10 | 1987-02-10 | Plate warp prevention device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0698362B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008254033A (en) * | 2007-04-05 | 2008-10-23 | Nippon Steel Corp | Method of straightening slab forming end part |
| US8217377B2 (en) | 2006-05-27 | 2012-07-10 | Sms Siemag Aktiengesellschaft | Device with movable sensor for measuring the width and/or the position of a metal strip or slab |
| CN107847992A (en) * | 2016-05-13 | 2018-03-27 | 新日铁住金株式会社 | Broadening milling method and broadening rolling device |
-
1987
- 1987-02-10 JP JP62029195A patent/JPH0698362B2/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8217377B2 (en) | 2006-05-27 | 2012-07-10 | Sms Siemag Aktiengesellschaft | Device with movable sensor for measuring the width and/or the position of a metal strip or slab |
| JP2008254033A (en) * | 2007-04-05 | 2008-10-23 | Nippon Steel Corp | Method of straightening slab forming end part |
| CN107847992A (en) * | 2016-05-13 | 2018-03-27 | 新日铁住金株式会社 | Broadening milling method and broadening rolling device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0698362B2 (en) | 1994-12-07 |
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