JPS63108916A - Manufacturing device for cut sheet - Google Patents
Manufacturing device for cut sheetInfo
- Publication number
- JPS63108916A JPS63108916A JP25316786A JP25316786A JPS63108916A JP S63108916 A JPS63108916 A JP S63108916A JP 25316786 A JP25316786 A JP 25316786A JP 25316786 A JP25316786 A JP 25316786A JP S63108916 A JPS63108916 A JP S63108916A
- Authority
- JP
- Japan
- Prior art keywords
- leveler
- tension
- steel strip
- driven
- diameter
- 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
Links
- 238000004519 manufacturing process Methods 0.000 title claims description 14
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 25
- 239000010959 steel Substances 0.000 claims abstract description 25
- 238000005452 bending Methods 0.000 claims abstract description 13
- 230000007547 defect Effects 0.000 claims abstract description 11
- 238000005520 cutting process Methods 0.000 claims description 12
- 230000003247 decreasing effect Effects 0.000 abstract 1
- 238000004804 winding Methods 0.000 abstract 1
- 230000037303 wrinkles Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 7
- 230000009467 reduction Effects 0.000 description 7
- 238000012360 testing method Methods 0.000 description 7
- 238000012937 correction Methods 0.000 description 6
- 239000000463 material Substances 0.000 description 5
- 238000013461 design Methods 0.000 description 4
- 238000004364 calculation method Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 239000010960 cold rolled steel Substances 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000013000 roll bending Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000007788 roughening Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Landscapes
- Straightening Metal Sheet-Like Bodies (AREA)
- Winding, Rewinding, Material Storage Devices (AREA)
Abstract
Description
【発明の詳細な説明】
（イ）産業上の利用分野
本発明は、鋼帯コイルから切板を連続的に製造する設備
に関するものである。DETAILED DESCRIPTION OF THE INVENTION (a) Field of Industrial Application The present invention relates to equipment for continuously manufacturing cut plates from steel strip coils.
（ロ）従来技術
従来の切板製造設（１の代表例としては、まず第２図（
Ａ）に示すように、ペイオフ・リール１から鋼帯コイル
２を巻き解いて、通常のレベラ３，４を通して無張力状
態でローラ・レベリングを施し、レベラ３と４との間で
フライング・シャー５で切仮に切断していた。(b) Prior art Conventional cutting board manufacturing equipment (as a representative example of 1, see Figure 2 (
As shown in A), the steel strip coil 2 is unwound from the payoff reel 1, roller leveling is performed under no tension through ordinary levelers 3 and 4, and a flying shear 5 is applied between the levelers 3 and 4. I had cut it off abruptly.
しかし、この設備では、無張力状態でレベリングするた
め、中伸び、耳波等の三次元的形状不良の矯正能力は非
常に小さく、板反り矯正と残留応力低減がこの設備の主
たる作用効果であった。近年、平坦度に対する要求がま
すます厳しくなってきており、ローラ・レベラの平坦矯
正能だけでは需要者の要求に応えることができなくなっ
てきた。However, since this equipment performs leveling in a tension-free state, its ability to correct three-dimensional shape defects such as mid-elongation and ear waves is extremely small, and the main effects of this equipment are to correct board warpage and reduce residual stress. Ta. In recent years, requirements for flatness have become increasingly strict, and the flatness straightening ability of roller levelers alone is no longer able to meet the demands of customers.
そこで、第２図（Ｉ３）に示すように、切板製造設備に
テンション・レベラ６を導入する方式も採用されてきた
。テンション・レベラ６による平坦矯正能は非常に高く
、いわゆるデッド・フラット鋼板の出荷が可能である。Therefore, as shown in FIG. 2 (I3), a method has been adopted in which a tension leveler 6 is introduced into the cutting plate manufacturing equipment. The flatness correction ability of the tension leveler 6 is very high, and it is possible to ship so-called dead flat steel plates.
しかし、張力付与機構な含めた設備費が膨大となり、コ
スト高となる欠点があった。However, there was a drawback that the equipment cost including the tension applying mechanism was enormous and the cost was high.
（ハ）発明が解決しようとする問題点
本発明が解決しようとする問題点は、安価な設備費でテ
ンション・レベラに対抗できる平坦度を確保しうる切板
製造設備を得ることにある。(c) Problems to be Solved by the Invention The problems to be solved by the present invention are to obtain cut plate manufacturing equipment that can ensure flatness that can withstand tension levelers at low equipment costs.
（ニ）問題点を解決するための手段
本発明の切板製造設備は、ペイオフ・リールから鋼帯コ
イルを巻き解いて所定寸法長さの切板を製造する設備に
おいて、鋼帯の進行方向上流側から小径非駆動レベラ、
大径駆動レベラ、ピンチ・ロールをそれぞれ直列に配置
し、前記ペイオフ・リールの張力に前記小径非駆動レベ
ラの引抜き張力ｆ：重畳させ、前記小径非駆動レベラで
の曲げ引張りで主として形状不良を矯正し、前記大径駆
動レベラで主として板反り矯正と残留応力低減すること
によって、上記問題点を解決している。(d) Means for Solving the Problems The cut plate production equipment of the present invention is an equipment for manufacturing cut plates of a predetermined length by unwinding a steel strip coil from a payoff reel. Small diameter non-drive leveler from the side,
A large-diameter drive leveler and a pinch roll are arranged in series, and the tension of the payoff reel is superimposed on the pull-out tension f of the small-diameter non-drive leveler, and the shape defects are mainly corrected by bending and tension in the small-diameter non-drive leveler. However, the above-mentioned problems are solved by mainly correcting plate warpage and reducing residual stress using the large-diameter drive leveler.
（ポ）ｆｔ 用
平坦度不良としては、見掛けの形状不良のみならず切断
加工後の反り発生防止も重要５運である。(P) When it comes to flatness defects for ft, it is important to prevent not only apparent shape defects but also warpage after cutting.
切断加工ｔ＆の反り発生の要因は残留応力である。Residual stress is a factor in the occurrence of warpage in the cutting process t&.
その防止のためには、ローラ・レベラで残留応力を低減
させておく必要がある。残留応力の低減には剛性の高い
ロール（直径の大きいロール）での強圧下曲率漸減曲げ
が有効である。したがって、まず張力下での曲げで三次
元的形状不良を矯正し、しかる後に剛性の高いレベラで
強力レベリングを施して板反りと残留応力とを低減する
。In order to prevent this, it is necessary to reduce the residual stress with a roller leveler. Bending with a gradual reduction in curvature under strong pressure using a roll with high rigidity (a roll with a large diameter) is effective for reducing residual stress. Therefore, the three-dimensional shape defects are first corrected by bending under tension, and then strong leveling is performed using a highly rigid leveler to reduce board warpage and residual stress.
（へ）実施例
図面を参照して、本発明の切板製造設備の実施例につい
て説明する。第１図は本発明の切板製造設備の概略構成
を示す、その構成要素は、上流側より、ペイオフ・リー
ル１、フィード・レベラ７、第１フライング・シャー５
ａ、サイド・トリマ８、伸長レベラ９、メイン・レベラ
１０、ピンチ・ロール１１、メジャリング・ロール１２
、第２フライング・シャー５ｂ、バイラ１３からできて
いる。(F) Embodiment An embodiment of the cutting board manufacturing equipment of the present invention will be described with reference to the drawings. FIG. 1 shows a schematic configuration of the cutting board manufacturing equipment of the present invention. Its components, from the upstream side, are a payoff reel 1, a feed leveler 7, a first flying shear 5,
a, side trimmer 8, extension leveler 9, main leveler 10, pinch roll 11, measuring roll 12
, a second flying shear 5b, and a bailer 13.
ペイオフ・リール１からの鋼帯コイル２がフィード・レ
ベラ７で巻きぐせを取られながら巻き解かれ、鋼帯Ｓが
サイド・トリマ８で幅調整をされながら小径非駆動の伸
長レベラ９を引き抜かれる。The steel strip coil 2 from the payoff reel 1 is unwound while being removed by a feed leveler 7, and the steel strip S is pulled out by a small diameter non-driven extension leveler 9 while its width is adjusted by a side trimmer 8. .
この時、ペイオフ・リール張力とレベラ引抜き力と力弓
長力として曲げに加わる。形状矯正された鋼帯は大径駆
動のメイン・レベラ１０で強力繰返し曲率漸減−げを受
けて板反り矯正と残留応力低減がなされる。ただし、メ
イン・レベラ１０の摩擦力だけでは引抜き力が小さいの
で、ここではダブル・ピンチ・ロール１１を設け、この
ピンチ力で鋼帯を引き抜くようにす、る、その後、通常
のメジャリング・ロール１２で板長を測定し、所定の長
さに第２フライング・シャー５ｂで切断し、バイラ１３
に切板として集積する。At this time, the payoff reel tension, leveler pull-out force, and bow length force are applied to the bending. The shape-corrected steel strip is subjected to strong repeated gradual curvature reduction in the large-diameter driven main leveler 10, thereby straightening the warpage and reducing residual stress. However, since the pulling force of the main leveler 10 alone is small, a double pinch roll 11 is provided here to pull out the steel strip with this pinch force. The length of the board is measured at step 12, and cut to a predetermined length using the second flying shear 5b.
Collected as cut plates.
この時、ペイオフ・リール１の張力をＴ。、伸長レベラ
９の出側張力をＴ１．メイン・レベラ１０の出側張力を
Ｔ２、ピンチ・ロール１１の出側張力をＴ、とすれば、
次の力学関係を満たす必要がある。At this time, the tension of payoff reel 1 is T. , the tension on the exit side of the extension leveler 9 is set to T1. If the tension on the output side of the main leveler 10 is T2, and the tension on the output side of the pinch roll 11 is T, then
It is necessary to satisfy the following dynamic relations.
まず、非駆動レベラ９を引き抜くのに要する力ΔＴは、
下記（１）式で表される。First, the force ΔT required to pull out the non-driving leveler 9 is
It is represented by the following formula (1).
・ρｉ／３Ｅ２・ｔ＋σ ・Ｌ／２ρｉ−σ２ ／Ｅ＋
Ｏ
し・σＴ２／２ρｉ・σ〕・・・・・・・（１＞Ｏ
σ ：材料の二次元降伏応力
×０
ρｉ：第ｉ第一ロール曲げ半径
Ｅ ：ヤング率 ｂ：板幅ｔ ：板厚
ｎ ：ロール本数
したがって、鋼帯を引抜くに要する力は下記（２）式で
表される。・ρi/3E2・t+σ ・L/2ρi−σ2 /E+
O shi・σT2/2ρi・σ]・・・・・・・(1>O σ: Two-dimensional yield stress of material × 0 ρi: i-th roll bending radius E: Young’s modulus b: Plate width t: Plate Thickness n: Number of rolls Therefore, the force required to pull out the steel strip is expressed by the following equation (2).
Ｔ、＝Ｔ、＋ΔＴ１・・・・・・・・・・（２）この弓
長力Ｔ１はメイン・レベラ１０の摩擦力とピンチ・ロー
ル１１の摩擦力とで与えられる。メイン・レベラ１０の
レベリング反力（上下ロールの分離力）をＷ、とすれば
、メイン・レベラ１０の引抜き力は摩擦係数をμとして
、ΔＴ２−２μＷ、となる。T, =T, +ΔT1 (2) This bow length force T1 is given by the frictional force of the main leveler 10 and the frictional force of the pinch roll 11. If the leveling reaction force (separation force between the upper and lower rolls) of the main leveler 10 is W, then the pull-out force of the main leveler 10 is ΔT2-2 μW, where μ is the coefficient of friction.
また、ピンチ・ロール１１の加圧力合計をＷ２とすれば
、引抜き力はＡＴ３＝２μＷ２となる。したがって、鋼
帯がスリップをせずに前進するためには、下記（３）式
の関係を満たす・２・要がある。Further, if the total pressing force of the pinch rolls 11 is W2, then the pulling force is AT3=2 μW2. Therefore, in order for the steel strip to advance without slipping, it is necessary to satisfy the following relationship (3).
Ｔ１≦２μ（Ｗ＋＋Ｗ２）・・・・・・・・（３）メイ
ン・レベラ１０のロール本数が多いほど、しベラ圧下が
大きいほど、レベリング反力Ｗ、が大きくなり、ピンチ
・ロール１１の加圧力Ｗ２を借りなくても鋼帯を引き抜
くことができる。しかし、−ｍに薄手の鋼帯ではＷｌが
小さくなるので、どうしても、Ｗ２の力が必要となって
くる。T1≦2μ(W++W2) (3) The greater the number of rolls in the main leveler 10 and the greater the leveling pressure, the greater the leveling reaction force W, which increases the application of the pinch rolls 11. The steel strip can be pulled out without applying pressure W2. However, in the case of a steel strip as thin as -m, Wl becomes small, so a force of W2 is inevitably required.
前記（３）式の関係を満足する機械構成およびモータ・
パワーを設計する。非駆動の伸長レベラ９のロール径が
小さいので、曲げ引張りにより下記（４）式で表される
塑性伸びを得ることができる。Mechanical configuration and motor that satisfy the relationship of equation (3) above
Design power. Since the roll diameter of the non-driven elongation leveler 9 is small, plastic elongation expressed by the following equation (4) can be obtained by bending and tensioning.
塑性伸びが得られれば、母材の形状不良は短い部分がよ
り伸ばされて改善されるわけである。なお、−ｍにはこ
のＡεは非常に小さくてよく、０．０２〜０．０５％の
伸びで形状は大幅に改善される。If plastic elongation is achieved, defects in the shape of the base material will be improved by elongating the short parts. Note that for -m, this Aε may be very small, and the shape is significantly improved with an elongation of 0.02 to 0.05%.
ただし、テンション・レベラはど張力が高くなく伸びが
得にくいので、形状矯正能を少しでら高めるために、小
径非駆動の伸長レベラ９のロール・クラウンを自由に変
るか、または、テーバ・ロールの幅方向ロール・シフト
等を導入することが望ましい。However, since the tension leveler does not have high tension and is difficult to elongate, in order to slightly increase the shape correction ability, it is necessary to freely change the roll crown of the small-diameter non-driven extension leveler 9, or to use a Taber roll. It is desirable to introduce widthwise roll shift, etc.
第３図に示すモデル・テスト機で小径非駆動レベラ９の
圧下量Ｈ（ＩＩ）を変えて引抜きレベリングを行った。Using the model test machine shown in FIG. 3, drawing leveling was performed by varying the reduction amount H(II) of the small diameter non-driven leveler 9.
材料は厚み０．５ｚｚＸ幅４００ｗｘ （σ、 ＝２３
ｋｙ／ａｍ”）、厚みＬｏｚｚｘ幅３００ｚｚ（σ、
＝ ２３ＡＩ／ｚｚ２）の通常冷延鋼板である。The material is thickness 0.5zz x width 400wx (σ, =23
ky/am”), thickness Lozz x width 300zz (σ,
= 23AI/zz2) is a normal cold rolled steel plate.
テスト結果を第４図（八）、（Ｂ）に示す、（Ａ〉は厚
み０．５ｕ村、（Ｂ）は厚み１．Ｏ１材の場合である。The test results are shown in FIGS. 4(8) and (B), where (A) is the case where the thickness is 0.5μ and (B) is the case where the thickness is 1.O1.
第４図（Ａ）中のａは引抜き張力＜ｋｇ／ｘ肩２）、ｂ
はその時の塑性伸びである。第４図（Ｂ）中のＣが厚み
１．０１１１１の塑性伸びを示している。いずれら圧下
量が大きくなるほど曲げ仕事が増加して、引抜き力は増
大する。圧下量が大であるほど、曲げ半径が小さく、張
力が大きくなるので、前記（４）式で示す塑性伸びΔε
も増大する。そして形状矯正に必要な伸率０．０２〜０
．０５％が得られる。In Figure 4 (A), a is the pull-out tension < kg/x shoulder 2), b
is the plastic elongation at that time. C in FIG. 4(B) indicates plastic elongation with a thickness of 1.01111. As the reduction amount increases, the bending work increases and the pulling force increases. The larger the rolling reduction, the smaller the bending radius and the larger the tension, so the plastic elongation Δε shown in equation (4) above
also increases. And the elongation rate required for shape correction is 0.02 to 0.
．． 05% is obtained.
なお、形状不良については、第５図に示すように、急峻
度λ（＝ｈ＃ｘｌＯＯ％、ｌ：波の長さ、ｈ：波の高さ
）で表わされることが多く、人と（４）式のノεには下
記（５）式の関係が成立する。In addition, as shown in Fig. 5, shape defects are often expressed by steepness λ (=h#xlOO%, l: wave length, h: wave height). ) The following relationship (5) holds true for ε in the equation.
Δ ε＝２．４７（λ）２・・・・・・・・・（５）し
たがって、Δε＝０．０２〜０．０５％はλ＝０，９〜
１．４％に相当する。Δε=2.47(λ)2・・・・・・・・・(5) Therefore, Δε=0.02~0.05% is λ=0.9~
This corresponds to 1.4%.
第３Ｄ？ｌのモデル・テスト機の入側にペイオフ・リー
ル１を設置して鋼帯にパックテンションを付与した（Ｔ
、＝ １．ＯＪｙ／＊ｚ”）ところ、第４図（Ａ）で
はａがａ′に、また、ｂがｂ′に変化した。すなわち、
ペイオフ・リール１で張力を付与してやれば、引抜き力
が高まり（ａ−＋ａ’ ）、その分塑性伸びが増大して
（ｂ→ｂ’ ＞形状矯正能は大きくなる。3rd D? Payoff reel 1 was installed on the entry side of the model test machine of 1 to apply pack tension to the steel strip (T
,=1. OJy/*z") However, in Figure 4 (A), a has changed to a' and b has changed to b'. That is,
If tension is applied by the payoff reel 1, the pull-out force increases (a-+a'), and the plastic elongation increases accordingly (b→b'>shape correction ability increases).
ただし、条件によっては、駆動レベラの窄擦力だけで鋼
帯を引き抜くことはできず、その対策として■駆動レベ
ラのロール本数増加、■レベラ・ロールの表面を粗くし
て摩擦係数増加、■駆動レベラ出側にピンチ・ロールを
追設するという３つの対策があることが判明した。■の
対策は、通常スペース、コストの点からロール本数２０
〜２５本カ最大である。■の対策は鋼板に１■さが転写
し鋼板の表面１■さ、光沢が変化する等の問題がある。However, depending on the conditions, it may not be possible to pull out the steel strip using only the frictional force of the drive leveler, and countermeasures include: ■ increasing the number of rolls in the drive leveler, ■ roughening the surface of the leveler rolls to increase the friction coefficient, and ■ increasing the friction coefficient of the drive leveler. It turned out that there are three countermeasures: adding a pinch roll on the exit side of the leveler. The countermeasure for ■ is usually 20 rolls in terms of space and cost.
The maximum number is ~25. Countermeasures for (2) have problems such as the 1.2 color being transferred to the steel plate and the surface 1.2 of the steel plate changing in appearance and gloss.
■の対策が最も現実的であることが判明した。It turns out that the measure (ii) is the most practical.
そこで、２スタンドのピンチ・ロールを追設した。その
結果、厚み１．０でも、第４図（Ｂ）に示すように、ペ
イオフ・リール１の張力り、Ｏｋｇ／ｘｉ２とすればＣ
がａ′に、１．５１ｆＩ／＋＋ｍ”とすれば、Ｃがｃ”
にそれぞれ塑性伸びが増大し、形状矯正能が大幅に改善
される。Therefore, we added a 2-stand pinch roll. As a result, even if the thickness is 1.0, as shown in Fig. 4 (B), if the tension of the payoff reel 1 is Okg/xi2, C
If a′ is 1.51fI/++m”, then C is c”
The plastic elongation increases, respectively, and the shape correction ability is greatly improved.
このとき、小径非駆動レベラのロールにクラウンを付与
するか、ロール・ベンダを追加するか、片側テーバ・ロ
ールを板幅に応じてシフトするかなどの技術を加味すれ
ば、テンション・レベラに近い平坦が得られるとともに
、低張力でもかなりの平坦改善が可能となる。At this time, if you take into account technologies such as adding a crown to the roll of a small-diameter non-drive leveler, adding a roll bender, or shifting one-sided tapered roll according to the sheet width, it will be similar to a tension leveler. Flatness can be obtained, and even with low tension, a considerable improvement in flatness is possible.
なお、メイン・レベラ１０では、ロールを撓ませない状
態で強力レベリングをすることが切断加工後の反り発生
防止として重要技術であることは、第３図の駆動レベラ
１０を用いた実験結果（第６図（Ｃ））においても、ま
た、理論上の計算結果（第６図（Ｂ））においても確コ
２されている。In the main leveler 10, strong leveling without bending the roll is an important technique for preventing warping after cutting, as shown in the experimental results using the drive leveler 10 shown in Figure 3. This is confirmed both in FIG. 6(C)) and in the theoretical calculation results (FIG. 6(B)).
次に、実機の設計・製作について検討する。Next, we will consider the design and manufacture of the actual machine.
板厚０．６〜１．６ｚｚ、板幅６００〜１６５０ｚｚ、
コイル重呈最大３０トン、ライン速度最大１００ｚ／ｌ
ｌ１ｎの切板製造設備を設計した。Plate thickness 0.6~1.6zz, plate width 600~1650zz,
Coil weight up to 30 tons, line speed up to 100z/l
We designed a cutting board production facility for l1n.
主要機器の配置は第１図に示すとおりである。The layout of the main equipment is shown in Figure 1.
伸長レベラ９のロールは直径３０ｘｉＸ ５本で非駆動
とし、分割バックアップ・ロールの押込みにより、幅方
向ロール撓みを調整できるようになっている。The extension leveler 9 has five rolls with a diameter of 30 x x and is not driven, and the roll deflection in the width direction can be adjusted by pushing in the divided backup rolls.
メイン・レベラ１０のロールは直径５０＋ｕ＋ Ｘ ２
１本である。この出側に直径２５０ｉｖＸ ４本のダブ
ル・ピンチ・ロール１１を設置し、メイン・レベラ１０
とピンチ・ロール１１とを駆動して鋼帯を引抜きレベリ
ングをする。その後、第２フライング・シャー５ｂによ
って所定の長さに切断し、バイラ１３に集積する。The roll of main leveler 10 has a diameter of 50 + u + x 2
There is one. Four double pinch rolls 11 with a diameter of 250 iv are installed on this exit side, and the main leveler 10
and pinch rolls 11 are driven to pull out the steel strip and level it. After that, it is cut into a predetermined length by the second flying shear 5b and accumulated in the bailer 13.
本設備の特徴は、小径非駆動レベラ９の引抜きレベリン
グによる形状矯正と、これに続く大径駆動レベラでの強
力レベリングによる板反り矯正および残留応力の低減と
である。まず、伸長レベラ９での引抜き力の検討結果は
次のとおりである。The feature of this equipment is that shape correction is performed by drawing leveling with a small-diameter non-driven leveler 9, followed by forceful leveling with a large-diameter driven leveler to correct board warpage and reduce residual stress. First, the results of examining the pulling force in the extension leveler 9 are as follows.
ペイオフ・リールｌの張力をＴ 、 ＝ ９０ＯＡ９と
し、最大１６５０ｚｚ幅の鋼帯Ｓを引き抜くのに要する
力と、メイン・レベラ１０、ピンチ・ロール１１での摩
擦による引抜力を検討した結果を第７図に示す。The tension of the payoff reel l is set to T, = 90OA9, and the results of examining the force required to pull out the steel strip S with a maximum width of 1650 zz and the pulling force due to friction in the main leveler 10 and pinch roll 11 are shown in the seventh table. As shown in the figure.
第７図では、材料の降伏応力σ −２１ｋｇ／、、２と
して、Ｔ 、 ＝ ９ｏｏｋｙをかけた状態で鋼帯を引
き抜くのに要する力の計算値を縦軸に、また、伸長レベ
ラ圧下量を横軸にとって板厚をパラメータにして描いで
ある。板厚が大きいほど、厚下亘が大きいほど（ρｉが
小さくなるから）前記（１）式で示すように必要引抜力
Ｔ ＋ （＝ Ｔ ｏ＋ΔＴ１）は増大する。In Fig. 7, the yield stress of the material is σ -21 kg/, 2, and the vertical axis is the calculated value of the force required to pull out the steel strip with T = 9ooky applied, and the amount of elongation leveler reduction is It is plotted with plate thickness as a parameter on the horizontal axis. As the plate thickness increases and as the thickness decrease increases (because ρi decreases), the required pulling force T + (=T o +ΔT1) increases as shown in the above equation (1).
一方、この引抜き力を発生させるための摩擦力２μ（Ｗ
、＋Ｗ２）を計算した値を図中の（）内の数値で示しで
ある。Ｗｌの計算は入側の最大塑性変形率ｎ＝０．８５
、出側でｎ＝０として各ロール反力を加算して求めた。On the other hand, the friction force 2 μ (W
, +W2) are shown by numerical values in parentheses in the figure. Calculation of Wl is based on the maximum plastic deformation rate n = 0.85 on the entry side
, the reaction force of each roll was calculated by adding up each roll reaction force with n=0 on the exit side.
また、Ｗ２は４トンとし、摩擦係数μは０．０７５とし
た。モータ・パワーの許容内で図中（）内の数値の引抜
きレベリングが可能であり、この時の伸びΔεは板厚に
より異なるが、０．０２〜０．１％が得られ、中伸び、
耳波等の三次元形状不良が改善される。Further, W2 was set to 4 tons, and the friction coefficient μ was set to 0.075. It is possible to pull out and level the values in parentheses in the figure within the allowable motor power, and the elongation Δε at this time varies depending on the plate thickness, but 0.02 to 0.1% can be obtained, and medium elongation,
Three-dimensional shape defects such as ear waves are improved.
−ｉに、板厚が薄くなるほどＷｌが小さくなるので、薄
板はどピンチ・ロールの引抜き力の比率は大きくなる。-i, the thinner the sheet thickness, the smaller Wl becomes, so the ratio of the pulling force of the thin sheet pinch roll increases.
厚物ではＷ、が大きくなり引抜き力は大きくなるがモー
タ・パワーの１陽にかかるのでこの点を考慮して最少コ
ストの設計にする必要がある。For thicker materials, W increases, and the pulling force increases, but it costs 1 yen of the motor power, so it is necessary to take this point into consideration and design the design to minimize cost.
なお、モデル・テスト機で述べたように、伸長レベラ９
のクラウン調整による形状修正効果は特に張力下におい
て凹著である。この後に、メイン・レベラ１０によって
ロールを撓ませない状態で強力レベリングをすることに
より、板反りが矯正され、残留応力が低減するので、見
掛けの平坦のみならず、切断加工後の反り発生の防止に
も有効である。非駆動レベラと駆動レベラとの間にテン
ションメータを導入し、この張力を管理値゛として操業
することが設備の上からは好ましい。In addition, as mentioned in the model test machine, the extension leveler 9
The shape modification effect of the crown adjustment is particularly noticeable under tension. After this, the main leveler 10 performs strong leveling without bending the roll, which corrects the warpage of the board and reduces residual stress, which not only makes it appear flat but also prevents warping after cutting. It is also effective for From the standpoint of equipment, it is preferable to introduce a tension meter between the non-driven leveler and the driven leveler and operate with this tension as a control value.
第１図は本発明の切板製造設備の概略構成線図。
第２図は従来の切板製造設備の概略構成線図、第３図は
本発明にもとづくモデル・テスト機の一部の概略構成線
図、第４図は第３（２Ｉに示すモデル・テスト機による
テスト結果を示すグラフ、第５図は形状不良例を示す説
明図、第６図はロール剛性の必要性を示す説明図、第７
図は伸長レベラ圧下ｌとレベラ引抜き力との関係を調べ
たグラフ。
１：ペイオフ・リール ２：鋼帯コイル３．４ニレベ
ラ
５：フライング・シャー
６：テンション・レベラ
７：フィード・レベラ
８；サイド・トリマ ９：仲良しベラ１０：メイン
・レベラ １１：ピンチ・ロール１２：４メジヤリ
ング・ロール
１３：バイラ Ｓ：鋼帯
特許出願人 住友金属工業株式会社
（外５名）
第３図
第４
（Ａ）
神長しベラ圧下量（７７７ｍ）
図
ＣＢ）
伸長レベ゛う刀三下量θη躬FIG. 1 is a schematic diagram of the configuration of the cutting board manufacturing equipment of the present invention. Figure 2 is a schematic configuration diagram of a conventional cutting plate manufacturing equipment, Figure 3 is a schematic diagram of a part of a model test machine based on the present invention, and Figure 4 is a diagram showing the model test shown in 3 (2I). Graph showing machine test results, Figure 5 is an explanatory diagram showing examples of defective shapes, Figure 6 is an explanatory diagram showing the necessity of roll rigidity, and Figure 7 is an explanatory diagram showing the necessity of roll rigidity.
The figure is a graph examining the relationship between extension leveler pressure l and leveler pull-out force. 1: Payoff reel 2: Steel strip coil 3.4 leveler 5: Flying shear 6: Tension leveler 7: Feed leveler 8; Side trimmer 9: Good friend 10: Main leveler 11: Pinch roll 12: 4 Measuring roll 13: Baira S: Steel strip patent applicant Sumitomo Metal Industries, Ltd. (5 others) Fig. 3 4 (A) Reduction amount of knife length (777 m) Fig. CB) Extension level sword 3 lower amount θηman
Claims (1)
長さの切板を製造する設備において、鋼帯の進行方向上
流側から小径非駆動レベラ、大径駆動レベラ、ピンチ・
ロールをそれぞれ直列に配置し、前記ペイオフ・リール
の張力に前記小径非駆動レベラの引抜き張力を重畳させ
、前記小径非駆動レベラでの曲げ引張りで主として形状
不良を矯正し、前記大径駆動レベラで主として板反り矯
正と残留応力低減することを特徴とした切板製造設備。In equipment that unwinds a steel strip coil from a payoff reel to produce a cut plate of a predetermined length, a small-diameter non-drive leveler, a large-diameter drive leveler, a pinch leveler, a small-diameter non-drive leveler, a large-diameter drive leveler,
The rolls are arranged in series, and the pull-out tension of the small-diameter non-driven leveler is superimposed on the tension of the payoff reel, and the bending tension of the small-diameter non-driven leveler is used to mainly correct shape defects, and the large-diameter driven leveler is used to correct shape defects. Cutting board manufacturing equipment that is primarily characterized by straightening board warpage and reducing residual stress.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25316786A JPS63108916A (en) | 1986-10-24 | 1986-10-24 | Manufacturing device for cut sheet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25316786A JPS63108916A (en) | 1986-10-24 | 1986-10-24 | Manufacturing device for cut sheet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63108916A true JPS63108916A (en) | 1988-05-13 |
Family
ID=17247463
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP25316786A Pending JPS63108916A (en) | 1986-10-24 | 1986-10-24 | Manufacturing device for cut sheet |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63108916A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20010038858A (en) * | 1999-10-28 | 2001-05-15 | 김홍걸 | Folding machine of binding together band |
| CN110026736A (en) * | 2019-03-22 | 2019-07-19 | 厦门美舜机械设备有限公司 | A kind of forming method sheet material and device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4718446U (en) * | 1971-03-31 | 1972-11-01 | ||
| JPS5072852A (en) * | 1973-10-31 | 1975-06-16 | ||
| JPS58168435A (en) * | 1982-03-30 | 1983-10-04 | Sumitomo Metal Ind Ltd | Straightening method of steel plate |
| JPS59144525A (en) * | 1983-02-07 | 1984-08-18 | Sumitomo Heavy Ind Ltd | Shape correcting device of metallic band sheet |
| JPS59220214A (en) * | 1983-05-30 | 1984-12-11 | Nisshin Steel Co Ltd | Method and device for drawing out start end of metallic band coil |
| JPS6137322A (en) * | 1984-07-30 | 1986-02-22 | Ishikawajima Harima Heavy Ind Co Ltd | Roller leveller |
-
1986
- 1986-10-24 JP JP25316786A patent/JPS63108916A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4718446U (en) * | 1971-03-31 | 1972-11-01 | ||
| JPS5072852A (en) * | 1973-10-31 | 1975-06-16 | ||
| JPS58168435A (en) * | 1982-03-30 | 1983-10-04 | Sumitomo Metal Ind Ltd | Straightening method of steel plate |
| JPS59144525A (en) * | 1983-02-07 | 1984-08-18 | Sumitomo Heavy Ind Ltd | Shape correcting device of metallic band sheet |
| JPS59220214A (en) * | 1983-05-30 | 1984-12-11 | Nisshin Steel Co Ltd | Method and device for drawing out start end of metallic band coil |
| JPS6137322A (en) * | 1984-07-30 | 1986-02-22 | Ishikawajima Harima Heavy Ind Co Ltd | Roller leveller |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20010038858A (en) * | 1999-10-28 | 2001-05-15 | 김홍걸 | Folding machine of binding together band |
| CN110026736A (en) * | 2019-03-22 | 2019-07-19 | 厦门美舜机械设备有限公司 | A kind of forming method sheet material and device |
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