JP2006082093A - Housing type two-high rolling mill - Google Patents

Housing type two-high rolling mill Download PDF

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JP2006082093A
JP2006082093A JP2004266852A JP2004266852A JP2006082093A JP 2006082093 A JP2006082093 A JP 2006082093A JP 2004266852 A JP2004266852 A JP 2004266852A JP 2004266852 A JP2004266852 A JP 2004266852A JP 2006082093 A JP2006082093 A JP 2006082093A
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roll
bearing box
bearing
rolling
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Kenkichi Hakozaki
健吉 箱崎
力 ▲高▼玉
Tsutomu Takatama
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NIPPON ROLL SEIZO KK
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a small housing type two-high rolling mill which can accurately and smoothly carry out the rolling operation, and can produce rolled products of high quality even when an object to be rolled is a short and thin material or a film shape material having two different thicknesses. <P>SOLUTION: Bearing housings 7, 8 for upper and lower rolls 2, 3 are split type bearing housings respectively, which are divided at the positions of roll axes P<SB>1</SB>, P<SB>2</SB>of journals of the respective upper and lower rolls. Roll clearance adjusting wedges 9 having a long and wide shape are arranged so as to come into contact with the almost whole lower surface of the upper bearing housings and the almost whole upper surface of the lower bearing housings. Therefore, when press-down forces by cylinders 10 are applied to the object to be rolled, the stiffness of the region S, which is composed of the height between the roll axes P<SB>1</SB>and P<SB>2</SB>and the width corresponding to the diameters D<SB>1</SB>and D<SB>2</SB>of the journals of the rolls, against the press-down forces is improved. As a result, the two-high rolling mill having a high mill modulus can be achieved. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

本発明は、金属板、例えば二次電池の電極板、樹脂フィルムなどの被圧延材を、上下２本のロールで圧延するハウジング型の２段圧延機に係り、詳しくは、より高いミル定数を備え得るよう改善したハウジング型２段圧延機に関する。   The present invention relates to a housing-type two-stage rolling mill for rolling a material to be rolled such as a metal plate, for example, an electrode plate of a secondary battery, a resin film, etc. with two upper and lower rolls, and more specifically, a higher mill constant. The present invention relates to a housing type two-high rolling mill improved so that it can be provided.

従来から、上下ロールの各ロール軸部を軸受けと軸受箱とで回転自在に支持すると共に、上下軸受箱、この軸受箱間に設けたロール間隙調整用ウェッジ、上軸受箱上に設けた圧下用シリンダのこれらをハウジング内に収納し、前記圧下用シリンダで圧延荷重より大きな圧下力がかけられた上で被圧延材を圧延するハウジング型の２段圧延機が知られている（例えば特許文献１参照）。   Conventionally, each roll shaft portion of the upper and lower rolls is rotatably supported by a bearing and a bearing housing, and the upper and lower bearing housings, a roll gap adjusting wedge provided between the bearing housings, and a reduction roller provided on the upper bearing housing. A housing-type two-stage rolling mill is known in which these cylinders are housed in a housing and a material to be rolled is rolled after a rolling force larger than the rolling load is applied by the rolling cylinder (for example, Patent Document 1). reference).

この種ハウジング型２段圧延機について図４を参照して説明する。同図は従来のハウジング型２段圧延機における軸受部の縦断側面図である。
この２段圧延機は、上ロール２’と下ロール３’の各ロール軸部４’，５’を、夫々上下の軸受け６’とで軸受箱７’，８’に回転自在に支持し、それら上下の軸受箱７’，８’の間の左右部位にロール間隙調整用のウェッジ９’を設けると共に、上軸受箱７’の上部に圧下用の油圧シリンダ１０’を設け、それらがハウジング１１’内に収納しており、圧延の際には油圧シリンダ１０’で、圧延荷重（上下のロールで被圧延材を圧延する際の反力）より大きな圧下力（ロールプレス力）をかけて、上ロール２’と下ロール３’の間に被圧延材１’を通して圧延するようになっている。 This type of housing type two-high rolling mill will be described with reference to FIG. This figure is a longitudinal side view of a bearing portion in a conventional housing type two-high rolling mill.
In this two-high rolling mill, the roll shafts 4 ′ and 5 ′ of the upper roll 2 ′ and the lower roll 3 ′ are rotatably supported by bearing housings 7 ′ and 8 ′ with upper and lower bearings 6 ′. A wedge 9 'for adjusting a roll gap is provided at the left and right portions between the upper and lower bearing boxes 7' and 8 ', and a hydraulic cylinder 10' for reduction is provided above the upper bearing box 7 '. 'It is housed inside, and when rolling, a hydraulic cylinder 10' applies a rolling force (roll pressing force) larger than the rolling load (reaction force when rolling the material to be rolled with the upper and lower rolls), The material to be rolled 1 'is rolled between the upper roll 2' and the lower roll 3 '.

上下の軸受箱７’，８’は角材に円筒孔を形成して軸受孔とした形状であり、上軸受箱７’の下面の左右部位と、下軸受箱８’の上面の左右部位に、ロール間隙調整用のウェッジ９’が挿入される溝９”が形成されている。
ロール間隙調整用のウェッジ９’は、構造上の寸法制限により、前記溝９”に挿入可能な狭幅で短尺の楔式駒状材を積重ねたもので、最下段の駒部材の出し入れ動作により、上下のロール２’，３’の間隙が調整されるようになっている。 The upper and lower bearing boxes 7 ′ and 8 ′ have a shape formed by forming a cylindrical hole in a square bar to form a bearing hole. The upper and lower bearing boxes 7 ′ and 8 ′ A groove 9 '' is formed into which a wedge 9 'for adjusting the roll gap is inserted.
The wedge 9 'for adjusting the roll gap is a stack of narrow and short wedge-shaped pieces that can be inserted into the groove 9 "due to structural limitations. The gap between the upper and lower rolls 2 'and 3' is adjusted.

特開２０００−７９４０７号公報JP 2000-79407 A

ところで、２段圧延機において、被圧延材を圧延する際、上下のロール間に圧延（圧延荷重）の反力が生じて上下のロールを分離させる方向に力が発生し、その力により、圧延機の各部に歪が生じて上下のロールの間隙が広がる。
前述した従来のハウジング型２段圧延機の場合、前記圧延荷重の影響で、上下のロール２’，３’、上下のロール軸部４’，５’、上下の軸受け６’，６’、上下の軸受箱７’，８’を分離する方向に力が働き、これらに歪みを発生して上下のロール２’，３’の間隙が広がる。
すなわち、この種ハウジング型２段圧延機では、上軸受箱７’の上面から下軸受箱８’の下面間に介在する上下のロール２’，３’、軸受け６’，６’、軸受箱７’、８’及びウェッジ９’の剛性が、上下のロール２’，３’の間隙の広がりに関与する。 By the way, in a two-stage rolling mill, when rolling a material to be rolled, a reaction force of rolling (rolling load) is generated between the upper and lower rolls, and a force is generated in a direction to separate the upper and lower rolls. Distortion occurs in each part of the machine and the gap between the upper and lower rolls widens.
In the case of the conventional housing type two-stage rolling mill described above, the upper and lower rolls 2 'and 3', the upper and lower roll shafts 4 'and 5', the upper and lower bearings 6 'and 6', and the upper and lower rolls are affected by the rolling load. A force acts in the direction of separating the bearing housings 7 'and 8', causing distortion in them, and the gap between the upper and lower rolls 2 'and 3' widens.
That is, in this type of housing type two-high rolling mill, upper and lower rolls 2 ′, 3 ′, bearings 6 ′, 6 ′, bearing box 7 interposed between the upper surface of upper bearing box 7 ′ and the lower surface of lower bearing box 8 ′. The rigidity of ', 8' and wedge 9 'contributes to the widening of the gap between the upper and lower rolls 2', 3 '.

一般に、圧延荷重とロール間隙の変化量の比率はミル定数と称され、２段圧延機全体の剛性の度合いを表している。
従来の２段圧延機では、圧延荷重によるロール間隙の変化は、主に、ロール２’，５’の歪み、軸受け６’，６’の歪み、軸受箱７’，８’の歪み、ウェッジ９’の歪み、及びその他の歪によるものであって、剛性が低くなる。
よって、上下ロールの間隙の広がりを考慮して被圧延材を所望の厚さに圧延するには、上下ロールの間隙を圧延後の厚さ寸法より狭い間隙に設定して圧延を行う必要がある。
しかし、圧延荷重がかかった際の上下ロール間隙の広がり量が、圧延後の目標厚さ寸法より大きなってしまうミル定数の低い２段圧延機においては、ロール間隙をマイナス間隙（上下ロールが互いに圧着する状態）に設定しなければならない。 In general, the ratio between the rolling load and the change amount of the roll gap is called a mill constant and represents the degree of rigidity of the entire two-high rolling mill.
In the conventional two-high rolling mill, the change in the roll gap due to the rolling load is mainly caused by the distortion of the rolls 2 ′ and 5 ′, the distortion of the bearings 6 ′ and 6 ′, the distortion of the bearing boxes 7 ′ and 8 ′, and the wedge 9 This is due to 'strain and other strains, and the rigidity becomes low.
Therefore, in order to roll the material to be rolled to a desired thickness in consideration of the widening of the gap between the upper and lower rolls, it is necessary to perform rolling with the gap between the upper and lower rolls set to a gap narrower than the thickness dimension after rolling. .
However, in a two-high rolling mill with a low mill constant in which the spread amount of the upper and lower roll gaps when a rolling load is applied is larger than the target thickness dimension after rolling, the roll gap is set to a minus gap (the upper and lower rolls are mutually separated). It must be set to the state of crimping.

そのため、前述した従来の２段圧延機では、油圧シリンダ１０’の圧下力Ｗを上軸受箱７’の上面で受け、これを、左右のウェッジ９’を介して下軸受箱８’に伝達するようになるので、図５に示すように、上下の軸受箱７’，８’の左右両側と、上ロール軸部４’の上半部分，下ロール軸部５’の下半部分に反力Ｗ１が発生し、この反力Ｗ１により、上下のロール２’，３’、上下の軸受け６’，６’、軸受箱７’、８’及びウェッジ９’に所定の歪みが付与され、上下のロール２’，３’の間隙の広がりを抑制するようになる。
換言すれば、従来の２段圧延機では、上下の軸受箱７’，８’の間のウェッジ９’が介在する左右部以外に隙間ｃが存在し、該隙間ｃにより前記圧下力Ｗが分断されるので、圧下方向が上下ロール軸部における各ロール軸心Ｐ１，Ｐ２の間で、各ロール軸部の軸直径Ｄ１，Ｄ２になる領域Ｓに前記反力Ｗ１が発生しない構造になって、上下の軸受け６’，６’、軸受箱７’，８’、ウェッジ９’に歪みを生じる。
よって、従来の２段圧延機では、上下ロール２’，３’間に被圧延材１’を通した際、その圧延荷重により上下各々のロール２’，３’、軸受け６’，６’、軸受箱７’，８’に圧延荷重の反力が発生し、上下ロール２’,３’間の間隙の広がりを抑制できず、ミル定数に低い圧延機になるという問題があった。 Therefore, in the above-described conventional two-high rolling mill, the rolling force W of the hydraulic cylinder 10 ′ is received by the upper surface of the upper bearing box 7 ′, and this is transmitted to the lower bearing box 8 ′ via the left and right wedges 9 ′. Therefore, as shown in FIG. 5, reaction force is exerted on the left and right sides of the upper and lower bearing housings 7 'and 8', the upper half portion of the upper roll shaft portion 4 ', and the lower half portion of the lower roll shaft portion 5'. W 1 is generated, and the reaction force W 1 gives a predetermined strain to the upper and lower rolls 2 ′ and 3 ′, the upper and lower bearings 6 ′ and 6 ′, the bearing housings 7 ′ and 8 ′, and the wedge 9 ′. The spread of the gap between the upper and lower rolls 2 ′ and 3 ′ is suppressed.
In other words, in the conventional two-high rolling mill, there is a gap c in addition to the left and right portions where the wedge 9 ′ between the upper and lower bearing boxes 7 ′, 8 ′ is interposed, and the rolling force W is divided by the gap c. Therefore, the reaction force W 1 is not generated in the region S in which the rolling direction is between the roll shaft centers P 1 and P 2 in the upper and lower roll shaft portions and the shaft diameters D 1 and D 2 of the respective roll shaft portions. Due to the structure, the upper and lower bearings 6 ', 6', the bearing housings 7 ', 8', and the wedge 9 'are distorted.
Therefore, in the conventional two-high rolling mill, when the material to be rolled 1 'is passed between the upper and lower rolls 2' and 3 ', the upper and lower rolls 2' and 3 ', bearings 6' and 6 ', There was a problem that a reaction force of the rolling load was generated in the bearing housings 7 ′ and 8 ′, and the spread of the gap between the upper and lower rolls 2 ′ and 3 ′ could not be suppressed, resulting in a rolling mill having a low mill constant.

このようなミル定数の低い２段圧延機では、被圧延材が、例えば薄く且つ長さ方向に段付きのあるフィルム状材であって高段部のみを圧延する場合、低段部まで圧延してしまう虞れがある。また、二次電池の電極板の様な薄いフィルム状の基材（低段部）に、電極材を短冊状に貼り合せて高段部とした被圧延材を圧延する場合、又は、短尺な薄い被圧延材を貼り合わせて高段部とした被圧延材の該高段部のみを断続的に圧延する場合に、前記低段部まで圧延してしまう虞れがあり、これによりフィルム状基材が破断し圧延が中断してしまうという問題がある。   In such a two-high rolling mill with a low mill constant, when the material to be rolled is, for example, a film-like material that is thin and stepped in the length direction and only the high-level part is rolled, the material is rolled to the low-level part. There is a risk of it. In addition, when rolling a material to be rolled into a high step portion by laminating the electrode material in a strip shape on a thin film substrate (low step portion) such as an electrode plate of a secondary battery, When only the high step portion of the material to be rolled, which is a high step portion by laminating a thin material to be rolled, is intermittently rolled, there is a risk of rolling to the low step portion. There is a problem that the material breaks and the rolling is interrupted.

また、ミル定数の低い２段圧延機では、被圧延材が、例えば薄く且つ短尺板状材料で圧延に高い圧延力を要する場合、上下のロール間隙がマイナス間隙（上下のロールが互いに圧着する状態）になるよう調整して圧延を行わなければならない。
この場合、上下のロールが常に高い圧着力で接触するため、各ロールの表面の磨耗や損傷が発生する虞れがあると共に、圧延終了時に短尺板状材料がロール間から抜ける時、上下ロールが元の圧着状態に戻るためロール同士が衝突することになり、ロールの損傷が起こりやすい。このような磨耗や損傷によるロール表面の不良は、圧延後の製品の品質低下につながるため好ましくない。 Further, in a two-high rolling mill with a low mill constant, when the material to be rolled is a thin and short plate-like material and requires a high rolling force for rolling, the upper and lower roll gaps are minus gaps (the upper and lower rolls are pressed against each other). ) Must be adjusted and rolled.
In this case, since the upper and lower rolls always come into contact with each other with a high pressing force, there is a possibility that the surface of each roll may be worn or damaged, and when the short plate-like material comes out between the rolls at the end of rolling, the upper and lower rolls The rolls collide because they return to the original crimped state, and the rolls are easily damaged. Such a roll surface defect due to wear or damage is undesirable because it leads to a reduction in the quality of the product after rolling.

また、被圧延材が、例えば厚み偏差や硬度むらがある材料の場合、圧延中の圧延荷重が変動するが、ミル定数が低い２段圧延機では圧延荷重の変動によるロール間隙の変化量が大きく、厚み偏差精度の高い圧延が困難である。   When the material to be rolled is, for example, a material having a thickness deviation or hardness unevenness, the rolling load during rolling fluctuates, but in a two-high rolling mill with a low mill constant, the amount of change in the roll gap due to the fluctuation in rolling load is large. Rolling with high thickness deviation accuracy is difficult.

前述した構造である従来の２段圧延機において前記各問題点を解消するには、上下夫々のロール軸部４’，５’、軸受け６’、軸受箱７’，８’を大型化し、これに伴い左右のウェッジ９’とハウジング１１’を大型化して圧延機全体のミル定数を大きくしなければならず、製造コストや設置スペース等の関係から圧延機の小型化が進んでいる現状を鑑みると現実的ではない。   In order to solve the above problems in the conventional two-high rolling mill having the above-described structure, the upper and lower roll shafts 4 'and 5', the bearing 6 ', and the bearing boxes 7' and 8 'are increased in size. Accordingly, the left and right wedges 9 ′ and the housing 11 ′ must be enlarged to increase the mill constant of the entire rolling mill, and in view of the current situation that the rolling mill has been downsized due to manufacturing costs, installation space, and the like. And not realistic.

本発明はこのような従来事情に鑑みてなされたもので、その目的とするところは、ロール軸部、軸受け、軸受箱、ウェッジ、ハウジングなどを大型化することなく高いミル定数を得ることができる、新規なハウジング型２段圧延機を提供することにある。   The present invention has been made in view of such conventional circumstances, and an object of the present invention is to obtain a high mill constant without increasing the size of a roll shaft portion, a bearing, a bearing box, a wedge, a housing, and the like. An object of the present invention is to provide a new housing type two-high rolling mill.

上記目的を達成するために本発明者等は鋭意検討を重ね、前述したように、従来のハウジング型２段圧延機は前記上下ロール軸部における各ロール軸心の間で各ロール軸部の軸直径になる領域Ｓにおいて反力Ｗ１が発生しない構造のため、ミル定数が低いことを知見し、この知見に基づいてさらに検討を重ね、本発明を完成するに至った。 In order to achieve the above object, the present inventors have made extensive studies, and as described above, the conventional housing-type two-stage rolling mill has an axis of each roll shaft portion between each roll axis in the upper and lower roll shaft portions. Since the reaction force W 1 does not occur in the diameter region S, the mill constant was found to be low, and further studies were made based on this finding to complete the present invention.

本発明に係るハウジング型２段圧延機は、上ロールと下ロールの各ロール軸部を、夫々上下の軸受けと軸受箱とで回転自在に支持すると共に、前記上下の軸受箱と、これら軸受箱の間に配設したロール間隙調整用のウェッジと、前記上軸受箱の上部に設けた圧下用シリンダとをハウジング内に収納し、前記圧下用シリンダによって、被圧延材の圧延荷重より大きな圧下力をかけて前記上下のロールの間に被圧延材を通して圧延するハウジング型２段圧延機であって、
前記上下の軸受箱が、前記各ロール軸部のロール軸芯の位置で水平に分割された割型軸受箱であると共に、夫々の割型軸受箱の上下の割型が、その分割面の間に隙間を有して支持され、且つ前記ウェッジが、楔状とし、上軸受箱の下割型のほぼ全下面と、下軸受箱の上割型のほぼ全上面とに接し、
前記圧下用シリンダの圧下力が、前記上軸受箱の下割型のほぼ全下面から、前記ウェッジを介して、前記下軸受箱の上割型のほぼ全上面に伝わるよう形成されてより高いミル定数を備えることを特徴とする。
このような構成によれば、上下の軸受箱が、ロール軸芯のレベルで水平に分割しその分割面に隙間を有する割型軸受箱であるので、圧下用シリンダの圧下力が、上軸受箱の上割型から下割型に軸受けを介して伝わり、該下割型のほぼ全下面から、幅広の楔状のウェッジを介して下軸受箱の上割型のほぼ全上面に伝わり、該上割型から下割型に軸受けを介して伝わる。よって、圧下用シリンダの圧下力による反力が、前記上下のロール軸部における各ロール軸心の間で、少なくとも前記各ロール軸部の軸直径になる領域に発生する。これにより、高い剛性の該領域を得て、上下のロール、軸受け、軸受箱の歪みを低減し、高いミル定数を備える２段圧延機を得ることができる。 The housing-type two-stage rolling mill according to the present invention rotatably supports the roll shaft portions of the upper roll and the lower roll by upper and lower bearings and a bearing box, respectively, and the upper and lower bearing boxes and the bearing boxes. A roll gap adjusting wedge disposed between the upper bearing box and a reduction cylinder provided in the upper portion of the upper bearing box is housed in a housing, and the reduction force is greater than the rolling load of the material to be rolled by the reduction cylinder. A housing type two-stage rolling mill that rolls through the material to be rolled between the upper and lower rolls,
The upper and lower bearing boxes are split-type bearing boxes that are horizontally divided at the position of the roll axis of each roll shaft portion, and the upper and lower split molds of each split-type bearing box are between the split surfaces. And the wedge is wedge-shaped and is in contact with substantially the entire lower surface of the lower mold of the upper bearing box and substantially the entire upper surface of the upper mold of the lower bearing box,
A higher mill is formed so that the rolling force of the lowering cylinder is transmitted from almost the entire lower surface of the lower mold of the upper bearing box to almost the entire upper surface of the upper mold of the lower bearing box via the wedge. It is characterized by having a constant.
According to such a configuration, since the upper and lower bearing boxes are split type bearing boxes that are horizontally divided at the level of the roll axis and have gaps on the divided surfaces, the reduction force of the reduction cylinder is reduced by the upper bearing box. Is transmitted from the upper split mold to the lower split mold via a bearing, and is transmitted from almost the entire lower surface of the lower split mold to almost the entire upper surface of the upper split mold of the lower bearing box through a wide wedge-shaped wedge. It is transmitted from the mold to the lower mold through a bearing. Accordingly, a reaction force due to the reduction force of the reduction cylinder is generated at least between the roll shaft centers of the upper and lower roll shaft portions in the region having the shaft diameter of each roll shaft portion. Thereby, this area | region with high rigidity can be obtained, distortion of an upper and lower roll, a bearing, and a bearing box can be reduced, and a two-high rolling mill provided with a high mill constant can be obtained.

また本発明は、上ロールと下ロールの各ロール軸部を、夫々上下の軸受けと軸受箱とで回転自在に支持すると共に、前記上下の軸受箱と、それら軸受箱の間に配設したロール間隙調整用のウェッジと、前記下軸受箱の下部に設けた圧下用シリンダとをハウジング内に収納し、前記圧下用シリンダによって、被圧延材の圧延荷重より大きな圧下力をかけて前記上下のロールの間に被圧延材を通して圧延するハウジング型２段圧延機であって、
前記上下の軸受箱が、前記各ロール軸部のロール軸芯の位置で水平に分割された割型軸受箱であると共に、夫々の割型軸受箱の上下の割型が、その分割面の間に隙間を有して支持され、且つ前記ウェッジが、楔状とし、上軸受箱の下割型のほぼ全下面と、下軸受箱の上割型のほぼ全上面とに接し、
前記圧下用シリンダの圧下力が、前記下軸受箱の上割型のほぼ全上面から、前記ウェッジを介して、前記上軸受箱の下割型のほぼ全下面に伝わるよう形成されてより高いミル定数を備えることを特徴とする。
このような構成によれば、上下の軸受箱が、ロール軸芯のレベルで水平に分割しその分割面に隙間を有する割型軸受箱であるので、圧下用シリンダの圧下力が、下軸受箱の下割型から上割型に軸受けを介して伝わり、該上割型のほぼ全上面から、幅広の楔状のウェッジを介して上軸受箱の下割型のほぼ全下面に伝わり、該下割型から上割型に軸受けを介して伝わる。よって、圧下用シリンダの圧下力による反力が、前記上下のロール軸部における各ロール軸心の間で、少なくとも前記各ロール軸部の軸直径になる領域に発生する。これにより、高い剛性の該領域を得て、上下のロール、軸受け、軸受箱の歪みを低減し、高いミル定数を備える２段圧延機を得ることができる。 The present invention also supports the roll shaft portions of the upper roll and the lower roll in a rotatable manner with upper and lower bearings and a bearing box, respectively, and a roll disposed between the upper and lower bearing boxes and the bearing boxes. A gap adjusting wedge and a reduction cylinder provided in a lower portion of the lower bearing box are housed in a housing, and the upper and lower rolls are subjected to a reduction force larger than the rolling load of the material to be rolled by the reduction cylinder. A housing type two-stage rolling mill for rolling through the material to be rolled during
The upper and lower bearing boxes are split-type bearing boxes that are horizontally divided at the position of the roll axis of each roll shaft portion, and the upper and lower split molds of each split-type bearing box are between the split surfaces. And the wedge is wedge-shaped and is in contact with substantially the entire lower surface of the lower mold of the upper bearing box and substantially the entire upper surface of the upper mold of the lower bearing box,
A higher mill is formed so that the rolling force of the lowering cylinder is transmitted from substantially the entire upper surface of the upper split type of the lower bearing box to almost the entire lower surface of the lower mold of the upper bearing box via the wedge. It is characterized by having a constant.
According to such a configuration, since the upper and lower bearing boxes are split type bearing boxes that are horizontally divided at the level of the roll axis and have gaps on the divided surfaces, the reduction force of the reduction cylinder is reduced by the lower bearing box. Is transmitted from the lower mold to the upper mold through a bearing, and is transmitted from almost the entire upper surface of the upper mold to almost the entire lower surface of the lower mold of the upper bearing box through a wide wedge-shaped wedge. It is transmitted from the mold to the split mold through a bearing. Accordingly, a reaction force due to the reduction force of the reduction cylinder is generated at least between the roll shaft centers of the upper and lower roll shaft portions in the region having the shaft diameter of each roll shaft portion. Thereby, this area | region with high rigidity can be obtained, distortion of an upper and lower roll, a bearing, and a bearing box can be reduced, and a two-high rolling mill provided with a high mill constant can be obtained.

本発明に係るハウジング型２段圧延機は以上説明したように構成したので、装置を大型化することなく、従来のハウジング型圧延機に比べ高いミル定数を得ることができた。
したがって、被圧延材が短尺状薄物材であったり、高低二段の高さを備えたフィルム状材であっても、上下ロールの間隙をマイナス間隙にすることなく、高精度で円滑に所望の圧延を行うことができ、且つロール面の磨耗や損傷も少なく高品質の圧延製品を得ることができるなど、多くの効果を奏する。 Since the housing type two-high rolling mill according to the present invention is configured as described above, a high mill constant can be obtained as compared with the conventional housing type rolling mill without increasing the size of the apparatus.
Therefore, even if the material to be rolled is a short thin material or a film-like material having a height of two levels, it can be smoothly and accurately obtained without making the gap between the upper and lower rolls a minus gap. There are many effects such as being able to perform rolling and obtaining a high-quality rolled product with little wear and damage on the roll surface.

以下、本発明に係るハウジング型２段圧延機の実施形態の一例を図１乃至図３を参照して説明する。
本例のハウジング型２段圧延機は、上ロール２及び下ロール３がその両端の各ロール軸部４，５を各々軸受け６で回転自在に支持すると共に、各軸受け６を保持する上下の軸受箱７，８と、それら軸受箱７，８の間に配設したロール間隙調整用のウェッジ９と、上軸受箱７の上部に設けた圧下用油圧シリンダ１０をハウジング１１内に収納しており、上下のロール２，３を不図示のロール駆動装置で回転駆動させると共に、圧下用油圧シリンダ１０で、被圧延材１の圧延荷重より大きな圧下力（ロールプレス力）Ｗをかけて、上ロール２と下ロール３の間に通す被圧延材１を所望の厚みに圧延するよう構成されている。 Hereinafter, an example of an embodiment of a housing type two-high rolling mill according to the present invention will be described with reference to FIGS. 1 to 3.
In the housing type two-high rolling mill of this example, the upper roll 2 and the lower roll 3 support the respective roll shafts 4 and 5 at both ends thereof rotatably by bearings 6 and upper and lower bearings for holding the respective bearings 6. Boxes 7 and 8, a roll gap adjusting wedge 9 disposed between the bearing boxes 7 and 8, and a reduction hydraulic cylinder 10 provided on the upper bearing box 7 are housed in a housing 11. The upper and lower rolls 2 and 3 are driven to rotate by a roll drive device (not shown), and a rolling force (roll pressing force) W larger than the rolling load of the material 1 is applied by the rolling hydraulic cylinder 10 to roll the upper roll. The material 1 to be rolled between 2 and the lower roll 3 is rolled to a desired thickness.

上下の軸受箱７，８は、各ロール軸部４，５のロール軸芯Ｐ１，Ｐ２の位置で水平に分割された割型軸受箱で、夫々の割型軸受箱７，８の上下の割型７ａ，７ｂ、８ａ，８ｂは、内蔵されたピン等により位置決めされると共に、その分割面の間に隙間７ｃ、８ｃを有して支持されている。 The upper and lower bearing housings 7 and 8 are split bearing housings that are horizontally divided at the positions of the roll shaft cores P 1 and P 2 of the respective roll shaft portions 4 and 5. The split molds 7a, 7b, 8a, 8b are positioned by built-in pins or the like, and are supported with gaps 7c, 8c between their divided surfaces.

ロール間隙調整用のウェッジ９は、基端から先端に向けて漸次細幅となるテーパー状に形成され、基端側に配したモータ，減速機構，進退軸等からなる押圧機構１３ａにより先端方向へ向けて往動すると共に、先端側に配した油圧シリンダ，シリンダロッド等からなる押圧機構１３ｂにより基端方向へ向けて復動するようになっており、被圧延材１の厚みや得ようとする圧延寸法等に合わせて、上下のロール２，３間の隙間を適宜に調整し得るようになっている。   The wedge 9 for adjusting the roll gap is formed in a taper shape having a gradually narrower width from the proximal end toward the distal end, and is moved in the distal end direction by a pressing mechanism 13a including a motor, a speed reduction mechanism, an advancing / retreating shaft and the like disposed on the proximal end side. In addition to moving forward, the pressure mechanism 13b made of a hydraulic cylinder, cylinder rod, etc. disposed on the distal end side is moved back toward the proximal direction, so that the thickness of the material 1 to be rolled can be obtained. The gap between the upper and lower rolls 2 and 3 can be adjusted appropriately according to the rolling dimensions and the like.

また、ロール間隙調整用のウェッジ９は、上軸受箱７の下割型７ｂのほぼ全下面と、下軸受箱８の上割型８ｂのほぼ全上面に接し、長尺幅広状に形成されており、圧下用油圧シリンダ１０の圧下力Ｗが、上軸受箱７の下割型７ｂのほぼ全下面から、ウェッジ９を介して、下軸受箱８の上割型８ｂのほぼ全上面に伝わるよう形成されている。   The wedge 9 for adjusting the roll gap is in contact with the substantially entire lower surface of the lower die 7b of the upper bearing box 7 and the substantially upper surface of the upper die 8b of the lower bearing box 8, and is formed in a long and wide shape. Thus, the reduction force W of the reduction hydraulic cylinder 10 is transmitted from the substantially lower surface of the lower die 7b of the upper bearing box 7 to the substantially upper surface of the upper die 8b of the lower bearing box 8 via the wedge 9. Is formed.

上下のロール軸部４，５の両端には、その上下ロール軸部端間にロールベンディング装置１２が組み付けられており、圧延荷重がかかった際のロール２，３の撓みを補正し得るようになっている。   At both ends of the upper and lower roll shaft portions 4 and 5, a roll bending device 12 is assembled between the ends of the upper and lower roll shaft portions so that the deflection of the rolls 2 and 3 when a rolling load is applied can be corrected. It has become.

このような構成になる本例のハウジング型２段圧延機によれば、圧下用油圧シリンダ１０の圧下力Ｗが、上軸受箱７の上割型７ａの下面から下割型７ｂに軸受け６を介して伝わり、該下割型７ｂのほぼ全下面から、幅広状のウェッジ９を介して下軸受箱８の上割型８ｂに伝わり、該上割型８ｂのほぼ全下面から下割型８ａに軸受け６を介して伝わる。
よって、図３に示すように、油圧シリンダ１０の圧下力Ｗによる反力Ｗ２が、上下ロール軸部４，５における各ロール軸心Ｐ１，Ｐ２の間で、少なくとも各ロール軸部４，５の軸直径Ｄ１，Ｄ２になる領域Ｓに発生する。これにより、高い剛性の該領域Ｓを得て、被圧延材１を圧延する際の圧延荷重による上下のロール２，３、軸受け６，６、軸受箱７，８の歪みを大幅に低減し、高いミル定数を備えたハウジング型２段圧延機とすることができた。 According to the housing type two-high rolling mill of this example having such a configuration, the reduction force W of the reduction hydraulic cylinder 10 causes the bearing 6 to move from the lower surface of the upper mold 7a of the upper bearing box 7 to the lower mold 7b. From the substantially lower surface of the lower mold 7b to the upper mold 8b of the lower bearing box 8 through the wide wedge 9, and from the substantially lower surface of the upper mold 8b to the lower mold 8a. It is transmitted via the bearing 6.
Therefore, as shown in FIG. 3, the reaction force W 2 due to the rolling force W of the hydraulic cylinder 10 is at least between each roll axis P 1 , P 2 in the upper and lower roll shaft parts 4, 5. , 5 occurs in the region S where the shaft diameters D 1 and D 2 become. Thereby, the region S having high rigidity is obtained, and distortions of the upper and lower rolls 2 and 3, the bearings 6 and 6, and the bearing housings 7 and 8 due to the rolling load when rolling the material 1 to be rolled are significantly reduced. A housing type two-high rolling mill having a high mill constant could be obtained.

尚、図４及び図５に示す構造の従来のハウジング型２段圧延機と、図１乃至図３で示す本例の２段圧延機のミル定数（Ｋ）を比較した結果、従来の２段圧延機が例えばＫ＝１０００ｔ／１ｍｍであるとするのに対し、本例では例えばＫ＝２０００ｔ／１ｍｍであり、ほぼ２倍のミル定数を記録し、本発明の優位性を確認することができた。   In addition, as a result of comparing the mill constant (K) of the conventional housing type two-high rolling mill having the structure shown in FIGS. 4 and 5 and the two-high rolling mill of this example shown in FIGS. The rolling mill is assumed to be K = 1000 t / 1 mm, for example. In this example, for example, K = 2000 t / 1 mm, and the mill constant is almost doubled to confirm the superiority of the present invention. It was.

また、図示は省略するが、前記圧下用油圧シリンダ１０を、上軸受箱７の上部に設けることに代えて、下軸受箱８の下部に圧下用油圧シリンダ１０を設けることもできる。
この場合、圧下用油圧シリンダ１０の圧下力Ｗが、下軸受箱８の下割型８ａの上面から上割型８ｂに軸受け６を介して伝わり、該上割型８ｂのほぼ全上面から、幅広状のウェッジ９を介して上軸受箱７の下割型７ｂに伝わり、該下割型７ｂのほぼ全上面から上割型７ａに軸受け６を介して伝わる。
よって、前述したように、油圧シリンダ１０の圧下力Ｗによる反力Ｗ２が、上下ロール軸部４，５における各ロール軸心Ｐ１，Ｐ２の間で、少なくとも各ロール軸部４，５の軸直径Ｄ１，Ｄ２になる領域Ｓに発生する。これにより、高い剛性の該領域Ｓを得て、被圧延材１を圧延する際の圧延荷重による上下のロール２，３、軸受け６，６、軸受箱７，８の歪みを大幅に低減し、高いミル定数を備えたハウジング型２段圧延機とすることができ、図１乃至図３で示す例と同様の効果を得ることができた。 Although not shown, the reduction hydraulic cylinder 10 may be provided below the lower bearing box 8 instead of providing the reduction hydraulic cylinder 10 above the upper bearing box 7.
In this case, the reduction force W of the reduction hydraulic cylinder 10 is transmitted from the upper surface of the lower mold 8a of the lower bearing box 8 to the upper mold 8b via the bearing 6, and the width is increased from almost the entire upper surface of the upper mold 8b. Is transmitted to the lower split mold 7b of the upper bearing box 7 through the wedge-shaped wedge 9, and is transmitted to the upper split mold 7a through the bearing 6 from almost the entire upper surface of the lower split mold 7b.
Therefore, as described above, the reaction force W 2 due to the rolling force W of the hydraulic cylinder 10 is at least between the roll shafts P 1 and P 2 in the upper and lower roll shafts 4 and 5, and at least the roll shafts 4 and 5. In the region S where the shaft diameters D 1 and D 2 become. Thereby, the region S having high rigidity is obtained, and distortions of the upper and lower rolls 2 and 3, the bearings 6 and 6, and the bearing housings 7 and 8 due to the rolling load when rolling the material 1 to be rolled are significantly reduced. A housing-type two-high rolling mill having a high mill constant could be obtained, and the same effect as the example shown in FIGS. 1 to 3 could be obtained.

以上、本発明の実施形態の一例を図面を参照して説明したが、本発明に係るハウジング型２段圧延機は図示例に限定されず、特許請求範囲の各請求項に記載された技術的思想の範疇であれば、種々の変更が可能であることは言うまでもない。   As mentioned above, although an example of an embodiment of the present invention was explained with reference to drawings, the housing type two-high rolling mill concerning the present invention is not limited to the example of illustration, and is technical as described in each claim of a claim It goes without saying that various changes are possible within the scope of the idea.

また、本発明に係る一対の上下ロールの上下ロール軸部を上下割型軸受箱とウェッジで支持し、圧下用油圧シリンダによる圧下力をかけて圧延する構造は、２段圧延機以外に、例えば４段圧延機、ミキシングロール機、カレンダー機などの各種ロール機に採用することが可能である。   Further, the structure in which the upper and lower roll shaft portions of the pair of upper and lower rolls according to the present invention are supported by the upper and lower split type bearing boxes and wedges and rolled by applying a rolling force by a rolling hydraulic cylinder, It can be employed in various rolling machines such as a four-high rolling mill, a mixing roll machine, and a calendar machine.

本発明に係るハウジング型２段圧延機の実施形態の一例を示す縦断正面図。The longitudinal section front view showing an example of the embodiment of the housing type two-high rolling mill concerning the present invention. 図１の（Ｘ）−（Ｘ）線に沿う断面図。Sectional drawing which follows the (X)-(X) line | wire of FIG. 図２の要部拡大図で、圧下力がかかった際の反力領域を表す説明図。FIG. 3 is an enlarged view of a main part of FIG. 2, illustrating a reaction force region when a rolling force is applied. 従来のハウジング型２段圧延機の要部縦断側面図。The principal part vertical side view of the conventional housing type 2 step rolling mill. 図３の要部拡大図で、圧下力がかかった際の反力領域を表す説明図。FIG. 4 is an enlarged view of a main part of FIG. 3, illustrating a reaction force region when a rolling force is applied.

符号の説明Explanation of symbols

１：被圧延材
２：上ロール
３：下ロール
４：上ロール軸部
５：下ロール軸部
６：軸受け
７：上軸受箱
７ａ：上軸受箱の上割型
７ｂ：上軸受箱の下割型
８：下軸受箱
８ａ：下軸受箱の下割型
８ｂ：下軸受箱の上割型
９：ウェッジ
１０：圧下用シリンダ
１１：ハウジング
Ｐ１，Ｐ２：ロール軸心
Ｄ１，Ｄ２：軸直径
Ｓ：領域
Ｗ：圧下力
Ｗ２：反力 1: Rolled material 2: Upper roll 3: Lower roll 4: Upper roll shaft portion 5: Lower roll shaft portion 6: Bearing 7: Upper bearing box 7a: Upper split type of upper bearing box 7b: Lower split of upper bearing box type 8: lower chocks 8a: under chocks of the lower split mold 8b: lower bearing boxes on split 9: wedge 10: pressure cylinder 11: housing P 1, P 2: the roll axis D 1, D 2: axis diameter S: area W: rolling force W 2: reaction force

Claims (3)

上ロールと下ロールの各ロール軸部を、夫々上下の軸受けと軸受箱とで回転自在に支持すると共に、前記上下の軸受箱と、それら軸受箱の間に配設したロール間隙調整用のウェッジと、前記上軸受箱の上部に設けた圧下用シリンダとをハウジング内に収納し、前記圧下用シリンダによって、被圧延材の圧延荷重より大きな圧下力をかけて前記上下のロールの間に被圧延材を通して圧延するハウジング型２段圧延機であって、
前記上下の軸受箱が、前記各ロール軸部のロール軸芯の位置で水平に分割された割型軸受箱であると共に、夫々の割型軸受箱の上下の割型が、その分割面の間に隙間を有して支持され、且つ前記ウェッジが、楔状とし、上軸受箱の下割型のほぼ全下面と、下軸受箱の上割型のほぼ全上面とに接し、
前記圧下用シリンダの圧下力が、前記上軸受箱の下割型のほぼ全下面から、前記ウェッジを介して、前記下軸受箱の上割型のほぼ全上面に伝わるよう形成されてより高いミル定数を備えることを特徴とするハウジング型２段圧延機。 The roll shafts of the upper roll and the lower roll are rotatably supported by upper and lower bearings and a bearing box, respectively, and the upper and lower bearing boxes and a roll gap adjusting wedge disposed between the bearing boxes. And a reduction cylinder provided at the upper part of the upper bearing box is housed in a housing, and the reduction cylinder applies a reduction force larger than the rolling load of the material to be rolled between the upper and lower rolls. A housing-type two-stage rolling mill that rolls through a material,
The upper and lower bearing boxes are split-type bearing boxes that are horizontally divided at the position of the roll axis of each roll shaft portion, and the upper and lower split molds of each split-type bearing box are between the split surfaces. And the wedge is wedge-shaped and is in contact with substantially the entire lower surface of the lower mold of the upper bearing box and substantially the entire upper surface of the upper mold of the lower bearing box,
A higher mill is formed so that the rolling force of the lowering cylinder is transmitted from almost the entire lower surface of the lower mold of the upper bearing box to almost the entire upper surface of the upper mold of the lower bearing box via the wedge. A housing type two-high rolling mill characterized by comprising a constant. 上ロールと下ロールの各ロール軸部を、夫々上下の軸受けと軸受箱とで回転自在に支持すると共に、前記上下の軸受箱と、それら軸受箱の間に配設したロール間隙調整用のウェッジと、前記下軸受箱の下部に設けた圧下用シリンダとをハウジング内に収納し、前記圧下用シリンダによって、被圧延材の圧延荷重より大きな圧下力をかけて前記上下のロールの間に被圧延材を通して圧延するハウジング型２段圧延機であって、
前記上下の軸受箱が、前記各ロール軸部のロール軸芯の位置で水平に分割された割型軸受箱であると共に、夫々の割型軸受箱の上下の割型が、その分割面の間に隙間を有して支持され、且つ前記ウェッジが、楔状とし、上軸受箱の下割型のほぼ全下面と、下軸受箱の上割型のほぼ全上面とに接し、
前記圧下用シリンダの圧下力が、前記下軸受箱の上割型のほぼ全上面から、前記ウェッジを介して、前記上軸受箱の下割型のほぼ全下面に伝わるよう形成されてより高いミル定数を備えることを特徴とするハウジング型２段圧延機。 The roll shafts of the upper roll and the lower roll are rotatably supported by upper and lower bearings and a bearing box, respectively, and the upper and lower bearing boxes and a roll gap adjusting wedge disposed between the bearing boxes. And a reduction cylinder provided in a lower part of the lower bearing box, and a rolling force is applied between the upper and lower rolls by applying a reduction force larger than the rolling load of the material to be rolled by the reduction cylinder. A housing-type two-stage rolling mill that rolls through a material,
The upper and lower bearing boxes are split-type bearing boxes that are horizontally divided at the position of the roll axis of each roll shaft portion, and the upper and lower split molds of each split-type bearing box are between the split surfaces. And the wedge is wedge-shaped and is in contact with substantially the entire lower surface of the lower mold of the upper bearing box and substantially the entire upper surface of the upper mold of the lower bearing box,
A higher mill is formed so that the rolling force of the lowering cylinder is transmitted from substantially the entire upper surface of the upper split type of the lower bearing box to almost the entire lower surface of the lower mold of the upper bearing box via the wedge. A housing type two-high rolling mill characterized by comprising a constant. 前記圧下用シリンダの圧下力により、前記上下のロール軸部における各ロール軸心の間で、少なくとも前記各ロール軸部の軸直径になる領域に反力を生じることを特徴とする請求項１又は２記載のハウジング型２段圧延機。   2. The reaction force is generated at least in a region of the shaft diameter of each roll shaft portion between the roll shaft centers of the upper and lower roll shaft portions by the rolling force of the reduction cylinder. 2. A housing-type two-high rolling mill according to 2.
JP2004266852A 2004-09-14 2004-09-14 Housing type two-high rolling mill Pending JP2006082093A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102581019A (en) * 2012-02-20 2012-07-18 深圳市浩能科技有限公司 Machine frame of battery pole piece rubbing mill
JP5959777B1 (en) * 2016-02-17 2016-08-02 大野ロール株式会社 Hydraulic reduction device used in small rolling mill or roll press and hydraulic control method using this hydraulic reduction device
JP2018519166A (en) * 2015-07-07 2018-07-19 宝山鋼鉄股▲ふん▼有限公司Ｂａｏｓｈａｎ Ｉｒｏｎ ＆ Ｓｔｅｅｌ Ｃｏ．，Ｌｔｄ． Rolling mill

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102581019A (en) * 2012-02-20 2012-07-18 深圳市浩能科技有限公司 Machine frame of battery pole piece rubbing mill
JP2018519166A (en) * 2015-07-07 2018-07-19 宝山鋼鉄股▲ふん▼有限公司Ｂａｏｓｈａｎ Ｉｒｏｎ ＆ Ｓｔｅｅｌ Ｃｏ．，Ｌｔｄ． Rolling mill
JP5959777B1 (en) * 2016-02-17 2016-08-02 大野ロール株式会社 Hydraulic reduction device used in small rolling mill or roll press and hydraulic control method using this hydraulic reduction device
CN107088583A (en) * 2016-02-17 2017-08-25 大野辊压机株式会社 Hydraulic pressure hold-down devices and the hydraulic control method of the hydraulic pressure hold-down devices that small-sized roll mill or roll squeezer are used

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