JP4123556B2 - Hot slab press machine and press method - Google Patents

Hot slab press machine and press method Download PDF

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Publication number
JP4123556B2
JP4123556B2 JP03701298A JP3701298A JP4123556B2 JP 4123556 B2 JP4123556 B2 JP 4123556B2 JP 03701298 A JP03701298 A JP 03701298A JP 3701298 A JP3701298 A JP 3701298A JP 4123556 B2 JP4123556 B2 JP 4123556B2
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rolled
crankshaft
reduction
mold
speed
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JPH11226601A (en
Inventor
賢一 井出
茂樹 成島
泰 百々
貞和 升田
修一 山科
早登史 村田
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IHI Corp
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IHI Corp
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Priority to JP03701298A priority Critical patent/JP4123556B2/en
Application filed by IHI Corp filed Critical IHI Corp
Priority to EP04013391A priority patent/EP1462188B1/en
Priority to AT04013391T priority patent/ATE346699T1/en
Priority to AT06006863T priority patent/ATE367871T1/en
Priority to AT06006949T priority patent/ATE367870T1/en
Priority to EP06006949A priority patent/EP1679132B1/en
Priority to EP06006863A priority patent/EP1679133B1/en
Priority to EP04013185A priority patent/EP1473094B1/en
Priority to EP98941824A priority patent/EP0943376B1/en
Priority to US09/308,293 priority patent/US6341516B1/en
Priority to AT06006834T priority patent/ATE366625T1/en
Priority to KR1019997004317A priority patent/KR100548606B1/en
Priority to TR1999/01065T priority patent/TR199901065T1/en
Priority to EP06006834A priority patent/EP1676650B1/en
Priority to PCT/JP1998/004092 priority patent/WO1999013998A1/en
Priority to IDW990341A priority patent/ID21481A/en
Priority to AT98941824T priority patent/ATE285304T1/en
Priority to CNB988013649A priority patent/CN100415397C/en
Priority to EP06006867A priority patent/EP1679134A1/en
Priority to AT04013185T priority patent/ATE345882T1/en
Priority to EP06006868A priority patent/EP1679135B1/en
Priority to AT06006868T priority patent/ATE376894T1/en
Publication of JPH11226601A publication Critical patent/JPH11226601A/en
Priority to US09/912,505 priority patent/US6467323B1/en
Priority to US10/105,436 priority patent/US20020104356A1/en
Priority to US10/394,028 priority patent/US6761053B2/en
Priority to US10/394,142 priority patent/US20030192360A1/en
Publication of JP4123556B2 publication Critical patent/JP4123556B2/en
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Description

【０００１】
【発明の属する技術分野】
本発明は、１パスで高圧下が可能な熱間スラブプレス装置とプレス方法に関する。
【０００２】
【従来の技術】
２本のワークロール間で圧延材を圧延する通常の圧延機では、噛込角の限界から、通常２５％前後の圧下率が限度である。そのため、高圧下（例えば約２５０ｍｍ厚から３０〜６０ｍｍ厚までの圧下）を単一の通板（１パス）で圧延することはできず、３〜４基の圧延機をタンデムに配置したタンデム圧延や、圧延材を往復動させて圧延するリバース圧延が行われるが、圧延ラインが長くなる等の問題がある。
【０００３】
一方、１パスで高圧下が可能な圧延手段として、プラネタリミル、ゼンジマーミル、クラスターミル等が提案されている。しかし、これらの圧延手段では、小径ロールが高速で被圧延材に当たるため、衝撃が大きく、ベアリング等の寿命が短く、量産型設備には適さない等の問題点があった。
【０００４】
【発明が解決しようとする課題】
更に、従来の幅圧下プレスを板厚圧下に適用したプレス装置が提案されている（例えば、特公平２−０１４１３９号、特開昭６１−２２２６５１号、特開平２−１７５０１１号、等）。
例えば、特開平２−１７５０１１号の「走間サイジングプレス装置」は、図６に示すように、被成形材料搬送ラインＺの上方と下方、あるいは左方と右方に回転軸２を配設し、この回転軸２の偏心部に所要の形状のロッド３のボス部を嵌合するとともに、ロッド３の先端部に被成形材料搬送ラインと対峙するように配設した金型４を連結したものであり、回転軸２を回動させ、回転軸の偏心部に嵌合したロッド３を介して金型４を被成形材料１の上下両面に圧下させて被成形材料１の厚さを減ずるようになっている。
【０００５】
しかし、この高圧下手段では、▲１▼圧延材を搬送しながら圧下する走間プレスが困難であり、▲２▼装置が複雑で構成部品が多い、▲３▼プレス荷重を受けて摺動する部位が多い、▲４▼高荷重，高サイクルには不向きである、等の問題点があった。
また、従来の高圧下手段では、スクリュー、ウェッジ、油圧シリンダ等により、金型の位置を調節して圧延材の厚さを補正するようになっているが、そのため、設備が大きくなり、コスト高で複雑となり、装置が大型化し振動も大きい問題点があった。
【０００６】
本発明は、上述した種々の問題点を解決するために創案されたものである。すなわち、本発明の目的は、▲１▼圧延材を搬送しながら圧下する走間プレスが可能であり、▲２▼構成部品が少なく、構造がシンプルであり、▲３▼プレス荷重を受けて摺動する部位が少なく、▲４▼高荷重及び高サイクルでの稼働ができ、▲５▼簡単な構造で金型の位置を調節して圧延材の厚さを補正することができる熱間スラブプレス装置とプレス方法を提供することにある。
【０００７】
【問題点を解決するための手段】
本発明によれば、被圧延材の上下に対向して配置され回転駆動される上下のクランク軸と、該クランク軸に一端部が摺動自在に嵌合し他端部が互いに回動自在に連結された上下の圧下フレームと、該圧下フレームの連結部を水平方向に移動可能に支持する水平案内装置と、上下の圧下フレームの一端部に被圧延材に対向して取り付けられた上下の金型と、を備え、
クランク軸の回転により上下の金型を開閉させ、被圧延材を圧下しながら搬送し、
クランク軸を回転駆動する駆動装置を備え、該駆動装置の回転速度は可変であり、金型の圧下時のライン方向速度が被圧延材の送り速度にほぼ一致するように、回転速度が設定される、ことを特徴とする熱間スラブプレス装置が提供される。
【０００８】
上記本発明の構成によれば、クランク軸の回転により、上下の金型はそれぞれ円運動をしながら開閉する。従って、上下の金型が閉じながらライン方向に移動することにより、被圧延材を圧下しながら搬送することができる。この圧下量は、クランク軸の偏心量で決まり、噛込角等に制限されずに高圧下が可能である。また、被圧延材を圧下しながら搬送するので、走間プレスが可能である。
また、プレス荷重を受けるのはクランク軸のみであり、水平案内装置には圧下フレームに作用するモーメントを打ち消すだけの相対的に小さい荷重のみが作用し、かつ上下の圧下フレームに作用するモーメントが互いに打ち消し合うので、更に小さい荷重しか作用しない。従って、構成部品が少なく、構造がシンプルででき、プレス荷重を受けて摺動する部位が少なく、高荷重及び高サイクルで稼働することができる。
さらに、金型のライン方向速度を被圧延材（スラブ）の送り速度にほぼ一致させることができ、クランク軸を回転駆動する駆動装置の負荷を軽減させることができる。
【０００９】
また、本発明によれば、被圧延材の上下に対向して配置され回転駆動される上下のクランク軸と、該クランク軸に一端部が摺動自在に嵌合し他端部が互いに回動自在に連結された上下の圧下フレームと、該圧下フレームの連結部を水平方向に移動可能に支持する水平案内装置と、上下の圧下フレームの一端部に被圧延材に対向して取り付けられた上下の金型と、を備え、クランク軸の回転により上下の金型を開閉させ、被圧延材を圧下しながら搬送し、下流側に被圧延材を弛ませて保持するルーパ装置を備える、ことを特徴とする熱間スラブプレス装置が提供される。
上記本発明の構成によれば、クランク軸の回転により、上下の金型はそれぞれ円運動をしながら開閉する。従って、上下の金型が閉じながらライン方向に移動することにより、被圧延材を圧下しながら搬送することができる。この圧下量は、クランク軸の偏心量で決まり、噛込角等に制限されずに高圧下が可能である。また、被圧延材を圧下しながら搬送するので、走間プレスが可能である。
また、プレス荷重を受けるのはクランク軸のみであり、水平案内装置には圧下フレームに作用するモーメントを打ち消すだけの相対的に小さい荷重のみが作用し、かつ上下の圧下フレームに作用するモーメントが互いに打ち消し合うので、更に小さい荷重しか作用しない。従って、構成部品が少なく、構造がシンプルででき、プレス荷重を受けて摺動する部位が少なく、高荷重及び高サイクルで稼働することができる。
さらに、金型のライン方向速度と被圧延材の送り速度との相違量をルーパ装置で吸収することができ、更に下流に位置する仕上圧延設備とライン速度を同調させることができる。
【００１０】
また、本発明によれば、被圧延材の上下に対向して配置され回転駆動される上下のクランク軸と、該クランク軸に一端部が摺動自在に嵌合し他端部が互いに回動自在に連結された上下の圧下フレームと、該圧下フレームの連結部を水平方向に移動可能に支持する水平案内装置と、上下の圧下フレームの一端部に被圧延材に対向して取り付けられた上下の金型と、を備え、クランク軸の回転により上下の金型を開閉させ、被圧延材を圧下しながら搬送し、金型と圧下フレームの間に挟持され金型の高さを調整する上下の高さ調整板を更に備える、ことを特徴とする熱間スラブプレス装置が提供される。
上記本発明の構成によれば、クランク軸の回転により、上下の金型はそれぞれ円運動をしながら開閉する。従って、上下の金型が閉じながらライン方向に移動することにより、被圧延材を圧下しながら搬送することができる。この圧下量は、クランク軸の偏心量で決まり、噛込角等に制限されずに高圧下が可能である。また、被圧延材を圧下しながら搬送するので、走間プレスが可能である。
また、プレス荷重を受けるのはクランク軸のみであり、水平案内装置には圧下フレームに作用するモーメントを打ち消すだけの相対的に小さい荷重のみが作用し、かつ上下の圧下フレームに作用するモーメントが互いに打ち消し合うので、更に小さい荷重しか作用しない。従って、構成部品が少なく、構造がシンプルででき、プレス荷重を受けて摺動する部位が少なく、高荷重及び高サイクルで稼働することができる。
さらに、高さ調整板の交換により、金型の高さを自由に調整でき、従来のスクリュー等に比較して、剛性が高くシンプルでコンパクトな構造とすることができ、振動及び故障が少なくメンテナンスが容易となり、コストを低減することができる。
【００１１】
さらに、本発明によれば、金型のライン方向最大速度に対し被圧延材の送り速度を可変とし、プレス始めは前記最大速度より早く途中より遅く被圧延材の送り速度を可変とした、ことを特徴とする熱間スラブのプレス方法が提供される。
【００１３】
【発明の実施の形態】
以下、本発明の好ましい実施形態を図面を参照して説明する。なお、各図において共通する部分には同一の符号を付して重複した説明を省略する。
図１は、本発明による熱間スラブプレス装置を備えた圧延設備の構成図である。この図において、本発明の熱間スラブプレス装置１０の下流側には、ルーパー装置６が設けられ、更にその下流側に仕上圧延機５が設置される。ルーパー装置６は、被圧延材を弛ませて保持し、熱間スラブプレス装置１０と仕上圧延機５のライン速度差により生じるたるみ分を滞留させるようになっている。
【００１４】
図２は、図１の熱間スラブプレス装置の正面図であり、図３は、図２のＡ−Ａ線における断面図である。図２及び図３に示すように、本発明の熱間スラブプレス装置１０は、被圧延材１の上下に対向して配置され回転駆動される上下のクランク軸１２と、クランク軸１２に一端部１４ａ（図で右端部）が摺動自在に嵌合し、他端部１４ｂ（左端部）が互いに回動自在に連結された上下の圧下フレーム１４と、圧下フレーム１４の連結部１４ｃを水平方向に移動可能に支持する水平案内装置１６と、上下の圧下フレーム１４の一端部に被圧延材１に対向して取り付けられた上下の金型１８とを備える。なお、この図で１１は、本体フレームである。
【００１５】
また、図３に示すように、クランク軸１２を回転駆動する駆動装置２０を備え、この駆動装置２０を速度制御器２２で制御し、駆動装置２０の回転速度を自由に制御できるようになっている。
更に、この実施形態において、金型１８と圧下フレーム１４の間には、高さ調整板２４が挟持され、この高さ調整板２４の厚さを変えることにより金型１８の高さを調整するようになっている。
【００１６】
図４は、金型の軌跡を模式的に示す図であり、（Ａ）は、金型１８と圧下フレーム１４の全体の軌跡、（Ｂ）は金型１８のみの軌跡を示している。この図に示すように、クランク軸１２の回転により、クランク軸１２はその偏心量ｅの２倍の直径を有する円運動を行い、これに追従して上下の圧下フレーム１４は、左端部１４ｂがライン方向に前後しながら、右端部１４ａ（図２で）が上下動する。従って、この図に示すように、上下の金型１８は、クランク軸１２の偏心量ｅの２倍の直径を有する円運動を行い、上下の金型１８が閉じながらライン方向に移動することにより、被圧延材１を圧下しながら搬送することができる。この圧下量は、クランク軸１２の偏心量ｅで決まり、噛込角等に制限されずに高圧下が可能である。また、被圧延材１を圧下しながら搬送するので、走間プレスが可能である。
【００１７】
なお、図４（Ｂ）に示すように、金型１８は、圧下時（図の二点鎖線）に平行部１８ａが互いに平行になるように、開放時（図の実線）では、圧下フレーム１４に対して僅かに傾斜して取り付けられている。この構成により、１サイクルで圧下する領域は、図に斜線で示す部分となる。
【００１８】
また、駆動装置２０の速度制御器２２により、金型１８の圧下時のライン方向速度が被圧延材１の送り速度にほぼ一致するように、クランク軸１２の回転速度を設定するようになっている。この構成により、金型１８のライン方向速度を被圧延材１の送り速度にほぼ一致させることができ、速度差によるクランク軸の負荷変動を軽減させることができる。
【００１９】
図５は、本発明の熱間スラブのプレス方法を示す模式図である。この図において、横軸はクランク角度を縦軸はライン方向速度を示している。本発明の方法によれば、金型のライン方向最大速度に対し被圧延材の送り速度を可変とする。更に、プレス始めは前記最大速度より早く途中より遅く被圧延材の送り速度を可変とするのがよい。この方法により、被圧延材の慣性力の大小で速度差によるプレスクランク軸への負荷を軽減させることができる。
【００２０】
なお、本発明は上述した実施形態に限定されず、本発明の要旨を逸脱しない範囲で種々変更できることは勿論である。
【００２１】
【発明の効果】
上述したように、本発明の熱間スラブプレス装置とプレス方法は、▲１▼圧延材を搬送しながら圧下する走間プレスが可能であり、▲２▼構成部品が少なく、構造がシンプルであり、▲３▼プレス荷重を受けて摺動する部位が少なく、▲４▼高荷重及び高サイクルでの稼働ができ、▲５▼簡単な構造で金型の位置を調節して圧延材の厚さを補正することができる、等の優れた効果を有する。
【図面の簡単な説明】
【図１】本発明による熱間スラブプレス装置を備えた圧延設備の構成図である。
【図２】図１の熱間スラブプレス装置の正面図である。
【図３】図２のＡ−Ａ線における断面図である。
【図４】金型の軌跡を模式的に示す図である。
【図５】本発明の熱間スラブのプレス方法を示す模式図である。
【図６】従来の高圧下手段の構成図である。
【符号の説明】
１ 被成形材料（被圧延材、スラブ）
２ 回転軸
３ ロッド
４ 金型
５ 仕上圧延機
６ ルーパー装置
１０ 熱間スラブプレス装置
１１ 本体フレーム
１２ クランク軸
１４ 圧下フレーム
１６ 水平案内装置
１８ 金型
２０ 駆動装置
２２ 速度制御器[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a hot slab press device and a press method capable of high pressure in one pass.
[0002]
[Prior art]
In a normal rolling mill that rolls a rolled material between two work rolls, the rolling reduction is usually about 25% due to the limit of the bite angle. Therefore, it is not possible to roll under high pressure (for example, from about 250 mm thickness to 30 to 60 mm thickness) with a single plate (1 pass), and tandem rolling with 3 to 4 rolling mills arranged in tandem. Alternatively, reverse rolling in which the rolled material is reciprocated to perform rolling is performed, but there are problems such as a long rolling line.
[0003]
On the other hand, planetary mills, Sendzimer mills, cluster mills and the like have been proposed as rolling means capable of high pressure under one pass. However, in these rolling means, since the small-diameter roll hits the material to be rolled at a high speed, there is a problem that the impact is large, the life of the bearing or the like is short, and it is not suitable for mass production equipment.
[0004]
[Problems to be solved by the invention]
Further, a press apparatus in which a conventional width-pressing press is applied to the plate thickness is proposed (for example, JP-B-2-014139, JP-A-61-222651, JP-A-2-175011, etc.).
For example, the “running sizing press device” disclosed in Japanese Patent Laid-Open No. 2-1775011 has rotating shafts 2 disposed above and below the molding material conveyance line Z, or left and right, as shown in FIG. The boss portion of the rod 3 having a required shape is fitted to the eccentric portion of the rotating shaft 2, and the die 4 disposed so as to face the molding material conveyance line is connected to the tip portion of the rod 3. The rotating shaft 2 is rotated, and the die 4 is pressed down on both the upper and lower surfaces of the molding material 1 through the rod 3 fitted to the eccentric portion of the rotating shaft, so that the thickness of the molding material 1 is reduced. It has become.
[0005]
However, with this high-pressure lowering means, (1) it is difficult to press while rolling while transporting the rolled material, (2) the device is complicated and has many components, and (3) sliding under a pressing load. There were problems such as many parts, (4) high load, unsuitable for high cycles.
In addition, in the conventional high pressure lowering means, the thickness of the rolled material is corrected by adjusting the position of the die by using a screw, a wedge, a hydraulic cylinder, etc. However, there is a problem that the apparatus becomes large and vibration is large.
[0006]
The present invention has been made to solve the various problems described above. That is, the object of the present invention is: (1) It is possible to perform a pressing while rolling while transporting a rolled material, (2) There are few components, the structure is simple, and (3) sliding under the press load. (4) Hot slab press that can operate with high load and high cycle, and (5) can adjust the position of the die with a simple structure to correct the thickness of the rolled material. It is to provide an apparatus and a pressing method.
[0007]
[Means for solving problems]
According to the present invention, the upper and lower crankshafts arranged opposite to the upper and lower sides of the material to be rolled and rotationally driven, and one end portion of the crankshaft are slidably fitted and the other end portions are rotatable relative to each other. The upper and lower reduction frames connected to each other, the horizontal guide device that supports the connection portion of the reduction frames so as to be movable in the horizontal direction, and the upper and lower gold attached to one end of the upper and lower reduction frames opposite to the material to be rolled. A mold, and
The upper and lower molds are opened and closed by rotating the crankshaft, and the material to be rolled is conveyed while being rolled down.
A drive device for rotating the crankshaft is provided, the rotation speed of the drive device is variable, and the rotation speed is set so that the line direction speed when the mold is reduced substantially matches the feed speed of the material to be rolled. that, the hot slab press apparatus is provided, characterized in that.
[0008]
According to the above-described configuration of the present invention, the upper and lower molds open and close while performing circular motion by the rotation of the crankshaft. Therefore, the material to be rolled can be conveyed while being reduced by moving in the line direction while the upper and lower molds are closed. The amount of reduction is determined by the amount of eccentricity of the crankshaft, and can be reduced without being limited by the biting angle or the like. In addition, since the material to be rolled is conveyed while being rolled down, it is possible to perform press during running.
Also, only the crankshaft receives the press load, and only a relatively small load that cancels out the moment acting on the reduction frame acts on the horizontal guide device, and the moments acting on the upper and lower reduction frames are mutually different. Since they cancel each other, only a smaller load is applied. Accordingly, the number of components is small, the structure is simple, the number of parts that slide by receiving a press load is small, and the apparatus can be operated with a high load and a high cycle.
Further, the line direction speed of the mold can be made substantially coincident with the feed speed of the material to be rolled (slab), and the load on the drive device that rotationally drives the crankshaft can be reduced.
[0009]
Further, according to the present invention, the upper and lower crankshafts disposed opposite to the upper and lower sides of the material to be rolled and rotationally driven, one end of the crankshaft is slidably fitted, and the other ends are rotated relative to each other. Upper and lower reduction frames that are freely connected, a horizontal guide device that supports the connection portion of the reduction frame so as to be movable in the horizontal direction, and upper and lower portions that are attached to one end of the upper and lower reduction frames to face the material to be rolled. The upper and lower molds by rotating the crankshaft, transporting the material to be rolled while reducing it, and providing a looper device that loosens and holds the material to be rolled on the downstream side. A featured hot slab press apparatus is provided.
According to the above-described configuration of the present invention, the upper and lower molds open and close while performing circular motion by the rotation of the crankshaft. Therefore, the material to be rolled can be conveyed while being reduced by moving in the line direction while the upper and lower molds are closed. The amount of reduction is determined by the amount of eccentricity of the crankshaft, and can be reduced without being limited by the biting angle or the like. In addition, since the material to be rolled is conveyed while being rolled down, it is possible to perform press during running.
Also, only the crankshaft receives the press load, and only a relatively small load that cancels out the moment acting on the reduction frame acts on the horizontal guide device, and the moments acting on the upper and lower reduction frames are mutually different. Since they cancel each other, only a smaller load is applied. Accordingly, the number of components is small, the structure is simple, the number of parts that slide by receiving a press load is small, and the apparatus can be operated with a high load and a high cycle.
Furthermore, the difference between the line direction speed of the mold and the feed speed of the material to be rolled can be absorbed by the looper device, and the line speed can be synchronized with the finishing rolling equipment located further downstream.
[0010]
Further, according to the present invention, the upper and lower crankshafts disposed opposite to the upper and lower sides of the material to be rolled and rotationally driven, one end of the crankshaft is slidably fitted, and the other ends are rotated relative to each other. Upper and lower reduction frames that are freely connected, a horizontal guide device that supports the connection portion of the reduction frame so as to be movable in the horizontal direction, and upper and lower portions that are attached to one end of the upper and lower reduction frames to face the material to be rolled. The upper and lower molds are opened and closed by opening and closing the upper and lower molds by rotating the crankshaft, and the material to be rolled is conveyed while being reduced, and is clamped between the mold and the reduction frame to adjust the height of the mold There is provided a hot slab press device further comprising a height adjusting plate.
According to the above-described configuration of the present invention, the upper and lower molds open and close while performing circular motion by the rotation of the crankshaft. Therefore, the material to be rolled can be conveyed while being reduced by moving in the line direction while the upper and lower molds are closed. The amount of reduction is determined by the amount of eccentricity of the crankshaft, and can be reduced without being limited by the biting angle or the like. In addition, since the material to be rolled is conveyed while being rolled down, it is possible to perform press during running.
Also, only the crankshaft receives the press load, and only a relatively small load that cancels out the moment acting on the reduction frame acts on the horizontal guide device, and the moments acting on the upper and lower reduction frames are mutually different. Since they cancel each other, only a smaller load is applied. Accordingly, the number of components is small, the structure is simple, the number of parts that slide by receiving a press load is small, and the apparatus can be operated with a high load and a high cycle.
In addition, the height of the mold can be adjusted freely by replacing the height adjustment plate, and it has a simpler and more compact structure that is more rigid and simpler than conventional screws. Becomes easier and the cost can be reduced.
[0011]
Furthermore, according to the present invention, the feed speed of the material to be rolled is variable with respect to the maximum speed in the mold line direction, and the feed speed of the material to be rolled is variable at the beginning of the press earlier than the maximum speed and later in the middle. A hot slab pressing method is provided.
[0013]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings. In addition, the same code | symbol is attached | subjected to the common part in each figure, and the overlapping description is abbreviate | omitted.
FIG. 1 is a configuration diagram of a rolling facility equipped with a hot slab press device according to the present invention. In this figure, a looper device 6 is provided on the downstream side of the hot slab press device 10 of the present invention, and a finishing mill 5 is further installed on the downstream side thereof. The looper device 6 holds the material to be rolled in a slack and retains slack caused by the line speed difference between the hot slab press device 10 and the finish rolling mill 5.
[0014]
2 is a front view of the hot slab press apparatus of FIG. 1, and FIG. 3 is a cross-sectional view taken along line AA of FIG. As shown in FIGS. 2 and 3, the hot slab press device 10 of the present invention includes an upper and lower crankshaft 12 that is disposed to be opposed to the upper and lower parts of the material to be rolled 1 and is rotationally driven, and one end of the crankshaft 12. 14a (right end portion in the figure) is slidably fitted and the other end portion 14b (left end portion) is rotatably connected to each other, and the connecting portion 14c of the reduction frame 14 is horizontally connected. And a horizontal guide device 16 that is movably supported, and upper and lower molds 18 attached to one end portions of the upper and lower rolling frames 14 so as to face the material 1 to be rolled. In this figure, reference numeral 11 denotes a main body frame.
[0015]
Further, as shown in FIG. 3, a drive device 20 that rotationally drives the crankshaft 12 is provided, and this drive device 20 is controlled by a speed controller 22 so that the rotational speed of the drive device 20 can be freely controlled. Yes.
Further, in this embodiment, a height adjustment plate 24 is sandwiched between the mold 18 and the reduction frame 14, and the height of the mold 18 is adjusted by changing the thickness of the height adjustment plate 24. It is like that.
[0016]
4A and 4B are diagrams schematically showing the trajectory of the mold, where FIG. 4A shows the entire trajectory of the mold 18 and the reduction frame 14, and FIG. 4B shows the trajectory of the mold 18 alone. As shown in this figure, the rotation of the crankshaft 12 causes the crankshaft 12 to perform a circular motion having a diameter twice as large as the eccentricity e, and the upper and lower reduction frames 14 follow the left end portion 14b. The right end portion 14a (in FIG. 2) moves up and down while moving back and forth in the line direction. Therefore, as shown in this figure, the upper and lower molds 18 perform a circular motion having a diameter twice the eccentric amount e of the crankshaft 12, and the upper and lower molds 18 move in the line direction while being closed. The to-be-rolled material 1 can be conveyed while being reduced. The amount of reduction is determined by the amount of eccentricity e of the crankshaft 12, and can be reduced without being limited by the biting angle or the like. Moreover, since the to-be-rolled material 1 is conveyed while rolling down, a press between runs is possible.
[0017]
As shown in FIG. 4B, when the mold 18 is opened (solid line in the figure) so that the parallel portions 18a are parallel to each other during the reduction (two-dot chain line in the figure), the reduction frame 14 It is attached with a slight inclination. With this configuration, the area that is reduced in one cycle is a portion indicated by hatching in the drawing.
[0018]
Further, the rotational speed of the crankshaft 12 is set by the speed controller 22 of the driving device 20 so that the speed in the line direction when the mold 18 is reduced substantially matches the feed speed of the material 1 to be rolled. Yes. With this configuration, the speed in the line direction of the mold 18 can be made substantially coincident with the feed speed of the material 1 to be rolled, and the load fluctuation of the crankshaft due to the speed difference can be reduced.
[0019]
FIG. 5 is a schematic view showing the hot slab pressing method of the present invention. In this figure, the horizontal axis indicates the crank angle, and the vertical axis indicates the line direction speed. According to the method of the present invention, the feed speed of the material to be rolled is variable with respect to the maximum speed in the line direction of the mold. Furthermore, it is preferable to change the feed speed of the material to be rolled at the beginning of the press earlier than the maximum speed and later in the middle. By this method, the load on the press crankshaft due to the speed difference can be reduced by the magnitude of the inertia force of the material to be rolled.
[0020]
In addition, this invention is not limited to embodiment mentioned above, Of course, it can change variously in the range which does not deviate from the summary of this invention.
[0021]
【The invention's effect】
As described above, the hot slab press device and the pressing method of the present invention are capable of (1) running press that is rolled down while conveying the rolled material, and (2) having few components and a simple structure. , (3) There are few parts to slide under the press load, (4) High load and high cycle can be operated, (5) The thickness of the rolled material by adjusting the position of the mold with a simple structure Can be corrected.
[Brief description of the drawings]
FIG. 1 is a configuration diagram of a rolling facility equipped with a hot slab press device according to the present invention.
FIG. 2 is a front view of the hot slab press device of FIG.
3 is a cross-sectional view taken along line AA in FIG.
FIG. 4 is a diagram schematically showing a locus of a mold.
FIG. 5 is a schematic view showing a hot slab pressing method according to the present invention.
FIG. 6 is a configuration diagram of conventional high-pressure lowering means.
[Explanation of symbols]
1 Molding material (rolled material, slab)
2 Rotating shaft 3 Rod 4 Die 5 Finishing mill 6 Looper device 10 Hot slab press device 11 Main body frame 12 Crankshaft 14 Reduction frame 16 Horizontal guide device 18 Mold 20 Drive device 22 Speed controller

Claims (4)

被圧延材の上下に対向して配置され回転駆動される上下のクランク軸と、該クランク軸に一端部が摺動自在に嵌合し他端部が互いに回動自在に連結された上下の圧下フレームと、該圧下フレームの連結部を水平方向に移動可能に支持する水平案内装置と、上下の圧下フレームの一端部に被圧延材に対向して取り付けられた上下の金型と、を備え、
クランク軸の回転により上下の金型を開閉させ、被圧延材を圧下しながら搬送し、
クランク軸を回転駆動する駆動装置を備え、該駆動装置の回転速度は可変であり、金型の圧下時のライン方向速度が被圧延材の送り速度にほぼ一致するように、回転速度が設定される、ことを特徴とする熱間スラブプレス装置。Upper and lower crankshafts arranged opposite to the upper and lower sides of the material to be rolled and driven to rotate, and upper and lower reductions with one end slidably fitted to the crankshaft and the other ends pivotably connected to each other A frame, a horizontal guide device that supports the connecting portion of the reduction frame movably in the horizontal direction, and upper and lower molds attached to one end of the upper and lower reduction frames to face the material to be rolled,
The upper and lower molds are opened and closed by rotating the crankshaft, and the material to be rolled is conveyed while being rolled down.
A drive device for rotating the crankshaft is provided, the rotation speed of the drive device is variable, and the rotation speed is set so that the line direction speed when the mold is reduced substantially matches the feed speed of the material to be rolled. that, the hot slab press apparatus, characterized in that. 被圧延材の上下に対向して配置され回転駆動される上下のクランク軸と、該クランク軸に一端部が摺動自在に嵌合し他端部が互いに回動自在に連結された上下の圧下フレームと、該圧下フレームの連結部を水平方向に移動可能に支持する水平案内装置と、上下の圧下フレームの一端部に被圧延材に対向して取り付けられた上下の金型と、を備え、
クランク軸の回転により上下の金型を開閉させ、被圧延材を圧下しながら搬送し、
下流側に被圧延材を弛ませて保持するルーパ装置を備える、ことを特徴とする熱間スラブプレス装置。Upper and lower crankshafts arranged opposite to the upper and lower sides of the material to be rolled and driven to rotate, and upper and lower reductions with one end slidably fitted to the crankshaft and the other ends pivotably connected to each other A frame, a horizontal guide device that supports the connecting portion of the reduction frame movably in the horizontal direction, and upper and lower molds attached to one end of the upper and lower reduction frames to face the material to be rolled,
The upper and lower molds are opened and closed by rotating the crankshaft, and the material to be rolled is conveyed while being rolled down.
A hot slab press device comprising a looper device for loosening and holding a material to be rolled on the downstream side . 被圧延材の上下に対向して配置され回転駆動される上下のクランク軸と、該クランク軸に一端部が摺動自在に嵌合し他端部が互いに回動自在に連結された上下の圧下フレームと、該圧下フレームの連結部を水平方向に移動可能に支持する水平案内装置と、上下の圧下フレームの一端部に被圧延材に対向して取り付けられた上下の金型と、を備え、
クランク軸の回転により上下の金型を開閉させ、被圧延材を圧下しながら搬送し、
金型と圧下フレームの間に挟持され金型の高さを調整する上下の高さ調整板を更に備える、ことを特徴とする熱間スラブプレス装置。Upper and lower crankshafts arranged opposite to the upper and lower sides of the material to be rolled and driven to rotate, and upper and lower reductions with one end slidably fitted to the crankshaft and the other ends pivotably connected to each other A frame, a horizontal guide device that supports the connecting portion of the reduction frame movably in the horizontal direction, and upper and lower molds attached to one end of the upper and lower reduction frames to face the material to be rolled,
The upper and lower molds are opened and closed by rotating the crankshaft, and the material to be rolled is conveyed while being rolled down.
A hot slab press apparatus , further comprising an upper and lower height adjustment plate that is sandwiched between a mold and a reduction frame and adjusts the height of the mold . 金型のライン方向最大速度に対し被圧延材の送り速度を可変とし、
プレス始めは前記最大速度より早く途中より遅く被圧延材の送り速度を可変とした、ことを特徴とする熱間スラブのプレス方法。The feed speed of the material to be rolled is variable with respect to the maximum speed in the mold line direction .
A method for pressing a hot slab, characterized in that, at the beginning of pressing, the feed speed of the material to be rolled is variable earlier than the maximum speed and later in the middle .
JP03701298A 1997-09-16 1998-02-19 Hot slab press machine and press method Expired - Fee Related JP4123556B2 (en)

Priority Applications (26)

Application Number Priority Date Filing Date Title
JP03701298A JP4123556B2 (en) 1998-02-19 1998-02-19 Hot slab press machine and press method
AT98941824T ATE285304T1 (en) 1997-09-16 1998-09-11 PLATE THICKNESS PRESSING APPARATUS AND METHOD
AT04013391T ATE346699T1 (en) 1997-09-16 1998-09-11 PLATE PRESSING APPARATUS AND METHOD
AT06006949T ATE367870T1 (en) 1997-09-16 1998-09-11 PLATE PRESSING APPARATUS AND METHOD
EP06006949A EP1679132B1 (en) 1997-09-16 1998-09-11 Plate reduction press apparatus and method
EP06006863A EP1679133B1 (en) 1997-09-16 1998-09-11 Plate reduction press apparatus
EP04013185A EP1473094B1 (en) 1997-09-16 1998-09-11 Plate reduction press apparatus
EP98941824A EP0943376B1 (en) 1997-09-16 1998-09-11 Plate thickness pressing device and method
US09/308,293 US6341516B1 (en) 1997-09-16 1998-09-11 Plate reduction press apparatus and methods
AT06006834T ATE366625T1 (en) 1997-09-16 1998-09-11 PLATE PRESSING APPARATUS AND METHOD
KR1019997004317A KR100548606B1 (en) 1997-09-16 1998-09-11 Sheet thickness reduction rolling method, Plate thickness reduction rolling apparatus and method
TR1999/01065T TR199901065T1 (en) 1997-09-16 1998-09-11 Plate reduction press device and methods.
EP06006834A EP1676650B1 (en) 1997-09-16 1998-09-11 Plate reduction press apparatus and methods
PCT/JP1998/004092 WO1999013998A1 (en) 1997-09-16 1998-09-11 Plate thickness pressing device and method
EP04013391A EP1462188B1 (en) 1997-09-16 1998-09-11 Plate reduction press apparatus and methods
AT06006863T ATE367871T1 (en) 1997-09-16 1998-09-11 PLATE PRESSING DEVICE
CNB988013649A CN100415397C (en) 1997-09-16 1998-09-11 Plate thickness pressing device and method
EP06006867A EP1679134A1 (en) 1997-09-16 1998-09-11 Plate reduction press apparatus and methods
AT04013185T ATE345882T1 (en) 1997-09-16 1998-09-11 PLATE THICKNESS PRESSING DEVICE
EP06006868A EP1679135B1 (en) 1997-09-16 1998-09-11 Plate reduction press apparatus and methods
AT06006868T ATE376894T1 (en) 1997-09-16 1998-09-11 PLATE PRESSING APPARATUS AND METHOD
IDW990341A ID21481A (en) 1997-09-16 1998-09-11 METHODS AND PROCESSING EQUIPMENTS TO REDUCE THE THICKNESS OF THE PLATE
US09/912,505 US6467323B1 (en) 1997-09-16 2001-07-26 Plate reduction press apparatus and methods
US10/105,436 US20020104356A1 (en) 1997-09-16 2002-03-26 Plate reduction press apparatus and methods
US10/394,028 US6761053B2 (en) 1997-09-16 2003-03-24 Plate reduction press apparatus and methods
US10/394,142 US20030192360A1 (en) 1997-09-16 2003-03-24 Plate reduction press apparatus and methods

Applications Claiming Priority (1)

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JP4123556B2 true JP4123556B2 (en) 2008-07-23

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