JPH0144278Y2 - - Google Patents
Info
- Publication number
- JPH0144278Y2 JPH0144278Y2 JP1984143923U JP14392384U JPH0144278Y2 JP H0144278 Y2 JPH0144278 Y2 JP H0144278Y2 JP 1984143923 U JP1984143923 U JP 1984143923U JP 14392384 U JP14392384 U JP 14392384U JP H0144278 Y2 JPH0144278 Y2 JP H0144278Y2
- Authority
- JP
- Japan
- Prior art keywords
- shearing
- blade
- shear
- metal strip
- shear angle
- 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.)
- Expired
Links
- 238000010008 shearing Methods 0.000 claims description 26
- 239000002184 metal Substances 0.000 claims description 13
- 230000007423 decrease Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 1
Landscapes
- Nonmetal Cutting Devices (AREA)
- Shearing Machines (AREA)
- Accessories And Tools For Shearing Machines (AREA)
Description
【考案の詳細な説明】
〔産業上の利用分野〕
本考案はシヤラインにおいて金属ストリツプに
テンシヨンを掛けた状態でシヤリングする設備に
用いる金属ストリツプの剪断刃に関し、さらに詳
しくは、金属ストリツプを幅方向に一端側から他
端側へ連続して剪断する固定刃と動刃とからなる
剪断刃に関する。[Detailed description of the invention] [Field of industrial application] The present invention relates to a metal strip shearing blade used in equipment for shearing a metal strip under tension in a shear line. This invention relates to a shearing blade consisting of a fixed blade and a movable blade that continuously shears from one end to the other.
一般に、金属ストリツプの高速シヤリング設備
において金属ストリツプを停止させることなく、
しかもテンシヨンを掛けた状態で剪断しなければ
ならない場合がある。
Generally, in high-speed shearing equipment for metal strips, without stopping the metal strips,
Moreover, there are cases where it is necessary to shear the material under tension.
従来、この場合に第２図に示されるようなシヤ
角θ付直刃を用いていた。図において上刃１は動
刃であり、下刃２は固定刃である。 Conventionally, in this case, a straight blade with a shear angle θ as shown in FIG. 2 has been used. In the figure, the upper blade 1 is a moving blade, and the lower blade 2 is a fixed blade.
しかし、この従来のシヤ角θ付直刃を使用する
と、ストリツプ幅方向の剪断完了部４が所定長進
行し、剪断終了付近において剪断未完部５が少な
くなるとテンシヨンにより引き千切られ、精度の
良いシヤリングができなくなるという問題点があ
つた。この対策としてシヤ角θを全長において0゜
とし幅方向に同時剪断すればよいが剪断必要力が
１桁以上アツプし、装置そのものも大型頑丈とな
り、振動も大きく好ましくないという問題点があ
つた。
However, when this conventional straight blade with shear angle θ is used, the sheared part 4 in the width direction of the strip advances a predetermined length, and when the unsheared part 5 decreases near the end of shearing, it is torn off by the tension, resulting in accurate shearing. There was a problem that it became impossible to do so. As a countermeasure to this problem, it is possible to set the shear angle θ to 0° over the entire length and perform simultaneous shearing in the width direction, but the required shearing force increases by more than an order of magnitude, the equipment itself has to be large and sturdy, and vibrations are large, which is undesirable.
本考案は上述の問題点を解決するたるに提案さ
れたもので、剪断必要力を増大せずに剪断終了付
近に発生する引き千切り現象を発生させない金属
ストリツプの剪断刃を提供することを目的とす
る。 The present invention was proposed to solve the above-mentioned problems, and its purpose is to provide a shearing blade for metal strips that does not cause the tearing phenomenon that occurs near the end of shearing without increasing the necessary shearing force. do.
シヤ角θ付剪断刃で剪断する場合、シヤ角θに
よりストリツプ幅方向に剪断が進み剪断未完部が
減つていく過程でストリツプテンシヨンにより、
引き千切り現象が生ずる。従つて、剪断刃にアン
グルを付け前半の剪断はシヤ角θを利用し、引き
千切り現象が発生する部分からはシヤ角θを0゜と
して同時剪断させるものである。
When shearing with a shear blade with a shear angle θ, the shearing progresses in the width direction of the strip due to the shear angle θ, and as the unsheared portion decreases, the strip tension
A tearing phenomenon occurs. Therefore, the shearing blade is angled and the shear angle θ is used for the first half of the shearing, and the shear angle θ is set to 0° from the part where the tearing phenomenon occurs and simultaneous shearing is performed.
以下、本考案を図面を参照してその実施例に基
づいて説明する。
Hereinafter, the present invention will be described based on embodiments with reference to the drawings.
第１図では本実施例による金属ストリツプ３の
剪断状態が示される。図において上刃１は動刃で
あり、下刃２は固定刃である。金属ストリツプ３
の剪断完了部４が進行し、剪断終了付近において
剪断未完部５が所定長以下に少なくなる部分で引
き千切り現象が生ずる範囲、つまり上刃１の一端
から５cmの範囲でシヤ角θを0゜とした。このため
金属ストリツプ３を100本剪断し、シヤリングの
際の引き千切り現象が零となつた。なお、下刃２
においてシヤ角θを所要長0゜に形成してもよい。 FIG. 1 shows the sheared state of the metal strip 3 according to this embodiment. In the figure, the upper blade 1 is a moving blade, and the lower blade 2 is a fixed blade. metal strip 3
The shear angle θ is set to 0° in the range where the shearing completed portion 4 progresses and the shearing unfinished portion 5 decreases to less than a predetermined length near the end of shearing, in a range where the tearing phenomenon occurs, that is, in a range of 5 cm from one end of the upper blade 1. And so. For this reason, 100 metal strips 3 were sheared, and the tearing phenomenon during shearing became zero. In addition, lower blade 2
The shear angle θ may be formed to the required length of 0°.
本考案は以上説明したように金属ストリツプを
シヤリングする際にも引き千切り現象が生じない
という効果を奏する。
As explained above, the present invention has the effect that the tearing phenomenon does not occur even when shearing a metal strip.
第１図は本考案の一実施例を用いた剪断状態
図、第２図は従来の金属ストリツプ剪断刃を用い
た剪断状態図である。
１……上刃、２……下刃、３……金属ストリツ
プ、４……剪断完了部、５……剪断未完部、θ…
…シヤ角。
FIG. 1 is a shear state diagram using an embodiment of the present invention, and FIG. 2 is a shear state diagram using a conventional metal strip shear blade. 1... Upper blade, 2... Lower blade, 3... Metal strip, 4... Shearing completed part, 5... Shearing incomplete part, θ...
...shear angle.
Claims (1)
連続して剪断する固定刃と動刃とからなる剪断刃
において、該動刃の剪断終了直前部の刃先端線を
シヤ角が0゜となるように屈曲したことを特徴とす
る金属ストリツプの剪断刃。 In a shearing blade consisting of a fixed blade and a moving blade that continuously shears a metal strip from one end to the other in the width direction, the shear angle is 0° at the tip of the blade just before the end of shearing of the moving blade. A shearing blade made of metal strip, which is characterized by being bent like this.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1984143923U JPH0144278Y2 (en) | 1984-09-22 | 1984-09-22 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1984143923U JPH0144278Y2 (en) | 1984-09-22 | 1984-09-22 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6158016U JPS6158016U (en) | 1986-04-18 |
| JPH0144278Y2 true JPH0144278Y2 (en) | 1989-12-21 |
Family
ID=30702213
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1984143923U Expired JPH0144278Y2 (en) | 1984-09-22 | 1984-09-22 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0144278Y2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5042936B2 (en) * | 2007-07-30 | 2012-10-03 | 新日本製鐵株式会社 | Punching shear device with shear angle |
| JP5088069B2 (en) * | 2007-09-27 | 2012-12-05 | Ｊｆｅスチール株式会社 | Upper blade for down-cut crop shear |
| JP5440578B2 (en) * | 2011-09-16 | 2014-03-12 | Ｊｆｅスチール株式会社 | Determination method of planar shape of guillotine type crop shear upper blade for thick steel plate and guillotine type crop shear upper blade for thick steel plate |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5648429B2 (en) * | 1975-01-30 | 1981-11-16 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5648429U (en) * | 1979-09-19 | 1981-04-30 |
-
1984
- 1984-09-22 JP JP1984143923U patent/JPH0144278Y2/ja not_active Expired
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5648429B2 (en) * | 1975-01-30 | 1981-11-16 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6158016U (en) | 1986-04-18 |
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