JPH03184711A - Slitting method for steel belt - Google Patents
Slitting method for steel beltInfo
- Publication number
- JPH03184711A JPH03184711A JP32259089A JP32259089A JPH03184711A JP H03184711 A JPH03184711 A JP H03184711A JP 32259089 A JP32259089 A JP 32259089A JP 32259089 A JP32259089 A JP 32259089A JP H03184711 A JPH03184711 A JP H03184711A
- Authority
- JP
- Japan
- Prior art keywords
- steel belt
- slitting
- force
- slit
- width
- 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
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 30
- 239000010959 steel Substances 0.000 title claims abstract description 30
- 238000000034 method Methods 0.000 title claims abstract description 14
- 238000005452 bending Methods 0.000 claims abstract description 21
- 239000000463 material Substances 0.000 abstract description 8
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 8
- 229910052802 copper Inorganic materials 0.000 description 8
- 239000010949 copper Substances 0.000 description 8
- 238000010008 shearing Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 125000006850 spacer group Chemical group 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 238000007665 sagging Methods 0.000 description 2
- 238000013019 agitation Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000000873 masking effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
Landscapes
- Shearing Machines (AREA)
Abstract
Description
【発明の詳細な説明】 〈産業上の利用分野〉 本発明は、鋼4iFのスリット方法に関する。[Detailed description of the invention] <Industrial application field> The present invention relates to a method for slitting steel 4iF.
〈従来の技術〉
従来から、鋼1iPのスリットは上下一対のカッタ軸に
丸刃物をセットして、これら上下の丸刃物を所定の量だ
けラップさせ、また丸刃物量にギャップを設けてスリッ
トする。このような銅帯の剪断時において、その剪断反
力が丸刃物に作用すると、丸刃物はその剪断反力を受け
て動くと剪断梢度を損なうことになるから、丸刃物を動
かないように固定する必要がある。<Conventional technology> Conventionally, slitting of steel 1iP has been carried out by setting round knives on a pair of upper and lower cutter shafts, wrapping these upper and lower round knives by a predetermined amount, and creating a gap between the round knives. . When shearing a copper strip like this, if the shearing reaction force acts on the round knife, the round knife will lose its shear strength if it moves under the shearing reaction force, so the round knife should not be moved. It needs to be fixed.
この丸刃物の固定方法としては、刃とカッタ軸との間に
キーとスペーサ(カラー)を介装して固定する方法や、
あるいは特開昭50−2282号公報に開示されている
ように、丸刃物とカッタ軸間にスリーブを介在させ、ス
リーブ内面に油圧力などを作用させてスリーブを拡径さ
せ、その拡径力で丸刃物を固定する方法などが一般的で
ある。This round knife can be fixed by inserting a key and spacer (collar) between the blade and the cutter shaft,
Alternatively, as disclosed in Japanese Patent Application Laid-open No. 50-2282, a sleeve is interposed between the round cutter and the cutter shaft, and hydraulic pressure is applied to the inner surface of the sleeve to expand the diameter of the sleeve. A common method is to fix round knives.
〈発明が解決しようとする課題〉
しかしながら、上記した前者のスペーサ方式ではl’l
断反力で丸刃物が動くことはないが、スリット幅を変更
するときなどは、カッタ軸を片持ち状態にしてスペーサ
を締め付けているシャフトナツトを取り外し、順次スペ
ーサ、丸刃物を軸から抜き取り調整せねばならないから
、多くの時間を要するという問題がある。<Problem to be solved by the invention> However, in the former spacer method described above, l'l
The round knife will not move due to the reaction force, but when changing the slit width, etc., put the cutter shaft in a cantilevered state, remove the shaft nut that tightens the spacer, and then pull out the spacer and round knife from the shaft in order to make adjustments. The problem is that it takes a lot of time because it has to be done.
また、後者の特開昭50−2282号のスリーブ拡径方
式では、丸刃物に対して大きな剪断反力特に剪断時の水
平方向成分(側方力ともいう)が作用したときに丸刃物
が動いて、剪断面の性状不良やスリット幅の変動を惹起
するなどの欠点があり、結局厚肉材のスリットを制限す
るとか抽圧装置の容量を大きくするなどの対応を余儀無
くされる。Furthermore, in the sleeve diameter expansion method disclosed in JP-A No. 50-2282, the round blade moves when a large shearing reaction force, particularly a horizontal component during shearing (also referred to as lateral force), acts on the round blade. However, there are drawbacks such as poor properties of the sheared surface and fluctuations in slit width, which ultimately necessitates measures such as limiting the number of slits in thick-walled materials or increasing the capacity of the extraction device.
本発明は、上記のような!!l!題を解消すべくなされ
たもので、厚肉材であっても安定してスリットし得る銅
帯のスリット方法を提1ハすることを目的とする。The present invention is as described above! ! l! The purpose of this invention is to propose a method for slitting copper strips that can stably slit even thick materials.
〈課題を解決するための手段〉
本発明は、スリーブ面に複数の丸刃物を嵌装した上下一
対のカッタ軸からなるスリッタを用いて銅帯をスリット
するに際し、鋼帯のスリット幅を決定するカッタ軸側の
2枚の回転刃の間におけるm’lFの萌がり量を調整す
るようにしたことを特徴とする鋼4Iのスリット方法で
ある。<Means for Solving the Problems> The present invention determines the slit width of the steel strip when slitting the copper strip using a slitter consisting of a pair of upper and lower cutter shafts each having a plurality of round blades fitted into the sleeve surface. This is a method for slitting steel 4I, characterized in that the amount of m'lF sprouting between two rotary blades on the cutter shaft side is adjusted.
〈作 用〉
本発明者は、厚肉の銅帯を安定してスリットする方法に
ついて鋭意研究・実験を重ねた結果、厚肉材のスリット
時に、銅帯のエツジ曲げにより側方力と逆方向の力が下
方の丸刃物に作用す、1−とを見出し、この知見に基づ
いて本発明を完成させるに至った。<Function> As a result of intensive research and experiments on a method for stably slitting thick copper strips, the present inventor found that when slitting thick-walled materials, edge bending of the copper strip reduces lateral force in the opposite direction. It was discovered that the force of 1- acts on the lower round cutter, and based on this knowledge, the present invention was completed.
ここで、本発明の原理について説明する。使用するスリ
ッタは、第2図に示すように、上下一対のカッタ軸1.
2から構成され、それぞれのスリーブ3.4の面に複数
の丸刃物5,6が嵌装されて槽底される。また、基型側
の刃とされる上丸刃物5,5の内側の間隔すなわちスリ
ット設定幅をLとし、下丸刃物6,6は上丸刃物5.5
と間隙Sを有するように設定されるものとする。Here, the principle of the present invention will be explained. The slitter used has a pair of upper and lower cutter shafts, as shown in FIG.
A plurality of round cutters 5, 6 are fitted into the surface of each sleeve 3.4 to form the bottom of the tank. In addition, the inner interval of the upper round cutters 5, 5, which are the blades on the base side, that is, the slit setting width is L, and the lower round cutters 6, 6 are the upper round cutters 5.5.
and a gap S.
そこで、鋼帯7を切断する場合の下丸刃物6に働く剪断
反力を調査したところ、第3図に拡大して示すように、
従来から知られている側方力Fと逆方向の力fが作用す
ることを発見した。この力fは、上下丸刃物5.6で切
断される鋼帯7のエツジ曲がりによって生じるものと考
えられ、鋼帯7の上丸刃物5.5間での曲がり量αによ
って変化することが判明した。Therefore, when we investigated the shearing reaction force acting on the lower round knife 6 when cutting the steel strip 7, we found that as shown in an enlarged view in Fig. 3,
It was discovered that a force f in the opposite direction to the conventionally known lateral force F acts. This force f is thought to be caused by the bending of the edge of the steel strip 7 cut by the upper and lower round knives 5.6, and it was found that it changes depending on the amount of bending α between the upper and lower round knives 5.5 of the steel strip 7. did.
すなわち、油がり量αが大きいときは、曲がり力rは鋼
帯7と下丸刃物6との接触面積が大きいことから大きい
値であり、逆に山がり量αが小さいときは曲がり力fも
小さい僅となる。That is, when the amount α of oil sagging is large, the bending force r is a large value because the contact area between the steel strip 7 and the lower round cutter 6 is large, and conversely, when the amount α of sagging is small, the bending force f is also large. It's a small amount.
なお、萌がり■αは、鋼帯7の板厚、t、板幅Wあるい
は材質などにより変化し、定性的には、板厚りが厚くあ
るいは板幅Wが狭くなると大きくする必要があり、また
材質が硬くなると小さくする必要があることが知られて
いる。It should be noted that the sprouting rate α changes depending on the thickness, t, width W, or material of the steel strip 7, and qualitatively, it needs to be increased as the thickness increases or the width W becomes narrower. It is also known that as the material becomes harder, it needs to be made smaller.
第4図は、板厚tと側方力Fとの関係を、抗張力σtを
パラメータとして表したものであり、板厚りが厚くなる
に従い側方力Fが大きくなるが、その傾向は抗張力σ【
が大きくなるに従って増大する。Figure 4 shows the relationship between plate thickness t and lateral force F using tensile force σt as a parameter. As the plate thickness increases, lateral force F increases, but this tendency is [
increases as the value increases.
また、第5図は、板曲がり量αと板曲がり力fとの関係
を、板幅Wをパラメータとして表したものであり、板曲
がり量αが大きくなるに従い板曲がり力rは大きくなる
が、その度合いは板幅Wが小さいほど大きいことがわか
る。Moreover, FIG. 5 shows the relationship between the amount of plate bending α and the plate bending force f using the plate width W as a parameter. As the plate bending amount α increases, the plate bending force r increases, but It can be seen that the smaller the plate width W, the greater the degree of this.
これら第4図と第5図から板幅Wと抗張力σtとをバラ
メークとした板厚tと板萌がり量αとの関係をまとたの
が第GV!Jである。すなわち、この第6図かられかる
ように、板IIWと抗張力σLを予め与えておけば板厚
りに応じて板面がり量αを決定することができるのであ
る。From these Figures 4 and 5, the relationship between the plate thickness t and the plate eruption amount α, with the plate width W and tensile strength σt as variations, is summarized in GV! It is J. That is, as can be seen from FIG. 6, if the plate IIW and the tensile strength σL are given in advance, the plate surface rounding amount α can be determined according to the plate thickness.
上記のような知見を基にして、鋼帯7の曲がりり量αを
調整するようにすれば、曲がり力fの大きさを調整する
ことができるわけで、したがって、側方力Fとバランス
するような曲がり力fとすることにより、下丸刃物6の
設定位置を動かすことなく鋼帯7をスリットすることが
可能である。Based on the above knowledge, if the amount of bending α of the steel strip 7 is adjusted, the magnitude of the bending force f can be adjusted, so that it is balanced with the lateral force F. By setting the bending force f as such, it is possible to slit the steel strip 7 without moving the set position of the lower round cutter 6.
鋼帯7に曲がり量αを与える手段としては、例えば所定
の径を有するゴムリングを半割りにして下スリーブ4の
間に装着する方法とか、あるいは[[i力によって非接
触で曲げ力を与える方法など適宜採用することができる
。As a means of imparting the bending amount α to the steel strip 7, for example, a rubber ring having a predetermined diameter can be cut in half and attached between the lower sleeves 4, or Any method can be adopted as appropriate.
このように、切断される鋼帯7の上丸刃物5゜5間での
切断時の曲がり量αを調整することにより、精度の高い
スリットを実現することができる。In this way, by adjusting the bending amount α during cutting between the upper round blades 5° of the steel strip 7 to be cut, highly accurate slits can be realized.
なお、本発明の方法を用いる場合は、スリットする板を
幅方向に曲げるため、板幅Wが目標値より若干大きくな
る。これを防止するためには、予め板面げによる幅変化
量を見込んで刃物幅を設定するようにすればよい。In addition, when using the method of the present invention, since the plate to be slit is bent in the width direction, the plate width W becomes slightly larger than the target value. In order to prevent this, the blade width may be set in advance by taking into account the amount of width change due to the plate surface curvature.
いま、板幅Wの板を板曲がり量αとしてスリットすると
きの幅変化量をΔWとすると、この幅変化量ΔWは板曲
がり油線を2次曲線に仮定することにより、例えば下記
式を用いて桔度よく近似することができる。Now, if the amount of width change when slitting a plate with a width W is set to the amount of plate bending α and the width change amount is ΔW, then this width change amount ΔW can be calculated using the following formula by assuming the plate bending oil line to be a quadratic curve. can be approximated very well.
また、スリットする板が銅帯であって電&1鋼管などの
素材につかわれるような場合は、板面がり量αによる幅
変化量ΔWは幅要求精度に対比して実質上問題のない程
度の値であり、幅の補正を施す必要はない、(−例とし
て、板幅W=450no。In addition, when the plate to be slit is a copper strip and is used for materials such as electric & steel pipes, the width change amount ΔW due to the plate surface warp amount α should be a value that does not practically cause problems compared to the required width accuracy. Therefore, there is no need to perform width correction (for example, board width W=450no.
仮I′7.t=13mの板の(反曲がりff1aは0.
7 msあればよいのであるが、このときの幅変化量Δ
Wは前記した式で計算すると0.003 mとなり、幅
要求精度が±0.1%W程度であるから、実用上まった
く問題のない値であることがわかる。)
〈実施例〉
スリーブ径;400m5φ、丸刃物径;500mφで圧
力300 kgf/ctlの油圧拡径クランプ方式のス
リックに、第1図に示すような直径りなるゴムリング8
を第1表に示す条件で上下スリーブ3,4に取付けて、
普通鋼の鋼帯を板幅;400〜800閣にスリットした
。なお、使用したゴムリング80幅Wは70ffiII
+である。Temporary I'7. The plate of t=13m (anti-bending ff1a is 0.
7 ms is sufficient, but the width change amount Δ
When W is calculated using the above formula, it is 0.003 m, and since the required width accuracy is approximately ±0.1%W, it can be seen that this is a value that poses no problem in practice. ) <Example> A rubber ring 8 having a diameter as shown in Fig. 1 was attached to a slick using a hydraulic expansion clamp method with a sleeve diameter of 400 m5φ, a round blade diameter of 500 mφ, and a pressure of 300 kgf/ctl.
are attached to the upper and lower sleeves 3 and 4 under the conditions shown in Table 1,
A steel strip made of ordinary steel was slit into a plate width of 400 to 800 mm. In addition, the rubber ring 80 width W used is 70ffiII
It is +.
第 1 表
その結果、従来方式では9.0 m以下の板厚しかスリ
ットし得なかったのに対し、本発明方式では丸刃物を移
動させることなく、板厚14.0tmまでスムーズにス
リットすることができた。Table 1 As a result, while the conventional method could only slit a board with a thickness of 9.0 m or less, the method of the present invention could smoothly slit a board up to a thickness of 14.0 m without moving the round knife. was completed.
〈発明の効果〉
以上説明したように、本発明によれば、銅帯のスリット
幅を決定するカッタ軸側の2枚の丸刃物の間における銅
帯の藺かり量を調整するようにしたので、厚肉材のスリ
ットが可能になり、油圧装置の設備コストを低減させる
というすぐれた効果を奏する。<Effects of the Invention> As explained above, according to the present invention, the amount of slitting of the copper strip between the two round knives on the cutter shaft side which determines the slit width of the copper strip is adjusted. , it becomes possible to slit thick-walled materials, and has the excellent effect of reducing equipment costs for hydraulic equipment.
第1図は、本発明に係るスリッ、夕の一実施例を示す正
面図、第2図は、本発明の原理を示す説明図、第3図は
、第2図のA部の拡大図、第4図は、仮lvLと側方力
Fとの関係の一例を示す特性図、第5図は、板面がり攪
αと板曲がり力fとの関係の一例を示す特性図、第6図
は、板厚りと仮面がり量αとの関係の一例を示す特性図
である。
■・・・上刃ツタ軸、 2・・・下刃ツタ軸、 3
・・・上スリーブ、 4・・・下スリーブ、 5・
・・上丸刃物。
6・・・下丸刃物、 7・・・m帯、 8・・・ゴ
ムリング。FIG. 1 is a front view showing an embodiment of the slit according to the present invention, FIG. 2 is an explanatory diagram showing the principle of the present invention, and FIG. 3 is an enlarged view of section A in FIG. FIG. 4 is a characteristic diagram showing an example of the relationship between tentative lvL and lateral force F, FIG. 5 is a characteristic diagram showing an example of the relationship between plate surface warpage agitation α and plate bending force f, and FIG. is a characteristic diagram showing an example of the relationship between plate thickness and masking amount α. ■...Upper blade vine shaft, 2...Lower blade vine shaft, 3
... Upper sleeve, 4... Lower sleeve, 5.
・Kamimaru knife. 6... Lower round knife, 7... m band, 8... rubber ring.
Claims (1)
軸からなるスリッタを用いて鋼帯をスリットするに際し
、鋼帯のスリット幅を決定するカッタ軸側の2枚の回転
刃の間における鋼帯の曲がり量を調整するようにしたこ
とを特徴とする鋼帯のスリット方法。When slitting a steel strip using a slitter consisting of a pair of upper and lower cutter shafts with multiple round blades fitted on the sleeve surface, the steel strip is cut between two rotary blades on the cutter shaft side that determine the slit width of the steel strip. A method for slitting steel strips, characterized in that the amount of bending of the strip is adjusted.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP32259089A JPH03184711A (en) | 1989-12-14 | 1989-12-14 | Slitting method for steel belt |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP32259089A JPH03184711A (en) | 1989-12-14 | 1989-12-14 | Slitting method for steel belt |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH03184711A true JPH03184711A (en) | 1991-08-12 |
Family
ID=18145400
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP32259089A Pending JPH03184711A (en) | 1989-12-14 | 1989-12-14 | Slitting method for steel belt |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH03184711A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2006172827A (en) * | 2004-12-14 | 2006-06-29 | Dainippon Printing Co Ltd | Clearance determination method of gang edge cutting device, cutting method by gang edge cutting device, and gang edge cutting device |
CN116000089A (en) * | 2023-02-24 | 2023-04-25 | 浙江豪环新材料有限公司 | Processing technology and slitting device for high-precision steel |
-
1989
- 1989-12-14 JP JP32259089A patent/JPH03184711A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2006172827A (en) * | 2004-12-14 | 2006-06-29 | Dainippon Printing Co Ltd | Clearance determination method of gang edge cutting device, cutting method by gang edge cutting device, and gang edge cutting device |
CN116000089A (en) * | 2023-02-24 | 2023-04-25 | 浙江豪环新材料有限公司 | Processing technology and slitting device for high-precision steel |
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