JPS6149001B2 - - Google Patents
Info
- Publication number
- JPS6149001B2 JPS6149001B2 JP55154539A JP15453980A JPS6149001B2 JP S6149001 B2 JPS6149001 B2 JP S6149001B2 JP 55154539 A JP55154539 A JP 55154539A JP 15453980 A JP15453980 A JP 15453980A JP S6149001 B2 JPS6149001 B2 JP S6149001B2
- Authority
- JP
- Japan
- Prior art keywords
- rolled material
- guide
- receiving roller
- looper
- pass line
- 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
- 239000000463 material Substances 0.000 claims description 34
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 238000005096 rolling process Methods 0.000 description 18
- 230000006835 compression Effects 0.000 description 5
- 238000007906 compression Methods 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B41/00—Guiding, conveying, or accumulating easily-flexible work, e.g. wire, sheet metal bands, in loops or curves; Loop lifters
- B21B41/08—Guiding, conveying, or accumulating easily-flexible work, e.g. wire, sheet metal bands, in loops or curves; Loop lifters without overall change in the general direction of movement of the work
- B21B41/10—Loop deflectors
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Metal Rolling (AREA)
- Winding, Rewinding, Material Storage Devices (AREA)
Description
【発明の詳細な説明】
この発明は棒鋼、線材などの圧延設備における
ルーパの改良に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to improvement of a looper in rolling equipment for steel bars, wire rods, etc.
棒鋼、線材などの連続圧延設備においては、製
品の寸法形状を良好にする無張力圧延をおこなう
ために、圧延機間にルーパを設置することが一般
におこなわれている。第１図は従来のダウンルー
パの一例を示し、図中１はルーパ、２は前段側の
圧延機、３は後段側の圧延機である。４は油圧式
または空圧式のシリンダ５により上下方向に駆動
される押圧ローラで、圧延材を押圧してループを
形成させるためのものである。６は押圧ローラ４
の前段部に配設された受ローラで、パスライン７
に対してループ形成側に配置されている。受ロー
ラ６はルーパ１の機枠に固着した入口側ガイド８
に軸支されている。なお９は圧延材先端が通過す
る際にパスラインを包囲する筒状の通路を形成す
るガイドで、圧延材のループ形成時には分割され
て側方あるいは下方へ回動し解放状態となる形式
のものであるが、その詳細構造の図示は省略し
た。また１０は出口側ガイド、１１はこの出口側
ガイドに軸支したガイドローラである。 BACKGROUND ART In continuous rolling equipment for steel bars, wire rods, etc., loopers are generally installed between rolling mills in order to perform tensionless rolling to improve the dimensions and shape of products. FIG. 1 shows an example of a conventional down looper, in which 1 is a looper, 2 is a rolling mill on the front stage side, and 3 is a rolling mill on the rear stage side. A pressure roller 4 is driven vertically by a hydraulic or pneumatic cylinder 5, and is used to press the rolled material to form a loop. 6 is the pressure roller 4
The receiving roller installed in the front part of the pass line 7
It is arranged on the loop forming side. The receiving roller 6 is an inlet side guide 8 fixed to the machine frame of the looper 1.
It is pivoted on. Note that 9 is a guide that forms a cylindrical passage surrounding the pass line when the tip of the rolled material passes through, and is of a type that splits and rotates sideways or downwards to release when forming a loop of the rolled material. However, illustration of its detailed structure is omitted. Further, 10 is an exit side guide, and 11 is a guide roller pivotally supported by this exit side guide.
ところが上記構成のルーパにおいては受ローラ
６は、ループ形成前に圧延材先端がパスライン７
に沿つてガイド９を通過するように圧延材を誘導
する位置に固定されているので、圧延材が後段側
の圧延機３に導入された後シリンダ５により押圧
ローラ４を下降させて圧延材を押圧しループ１２
を形成させると、圧延材の剛性に応じて受ローラ
６の前方部分の圧延材１３がパスライン７より上
昇し、圧延機２に付設した筒状の出口ガイド１４
内に強く圧接して圧延材にカキ疵が発生する。こ
のカキ疵を避けるために受ローラ６をパスライン
７から下方へ離間させて取付けると、圧延材先端
誘導時に圧延材先端がガイド９の前側端面に衝突
し、連続圧延中断事故をひきおこす。 However, in the looper having the above configuration, the receiving roller 6 has the tip of the rolled material aligned with the pass line 7 before forming the loop.
Since the rolled material is fixed at a position to guide the rolled material so as to pass through the guide 9 along the guide 9, after the rolled material is introduced into the rolling mill 3 on the rear stage side, the pressure roller 4 is lowered by the cylinder 5 to move the rolled material. Press loop 12
, the rolled material 13 in the front part of the receiving roller 6 rises above the pass line 7 according to the rigidity of the rolled material, and the cylindrical outlet guide 14 attached to the rolling mill 2 rises.
The material is strongly pressed against the inside, causing scratches on the rolled material. If the receiving roller 6 is mounted so as to be spaced downward from the pass line 7 in order to avoid this scratch, the tip of the rolled material collides with the front end surface of the guide 9 when guiding the tip of the rolled material, causing an accident that interrupts continuous rolling.
この発明は上記従来の欠点を解消するもので、
圧延材先端がガイドの端面と衝突することなくパ
スラインに沿つて誘導され、かつループ形成時に
おける圧延機の出口ガイドとの圧接によるカキ疵
の発生が防止されるルーパを提供しようとするも
のである。 This invention solves the above-mentioned conventional drawbacks,
An object of the present invention is to provide a looper in which the tip of the rolled material is guided along the pass line without colliding with the end face of the guide, and in which the generation of scratches due to pressure contact with the outlet guide of the rolling mill during loop formation is prevented. be.
以下第２図および第３図によりこの発明の一実
施例を説明する。 An embodiment of the present invention will be described below with reference to FIGS. 2 and 3.
図中、第１図と同一符号を付した部分は第１図
と同一部分を示す。２０は略角筒状の入口側ガイ
ドで、圧延材通路２１を有し、ルーパ２２の前壁
２３に昇降自在に取付けられている。すなわち入
口ガイド基部のつば２４，２５は、ルーパの側壁
２６に取付けられた上下方向に延びる断面Ｌ字状
のガイドレール２７，２８により摺動自在に案内
されている。また入口側ガイド２０の上面に突設
した耳部２９にはピン３０を介してアイボルト３
１が連結され、このアイボルトの上部にはロツク
ナツト３２によりばね受け３３が取付けてある。
３４はルーパの前壁２３に固設したブラケツト
で、このブラケツトとばね受け３３の間には圧縮
ばね３６が介装され、この圧縮ばねのばね力によ
り入口側ガイド２０はアイボルト３１を介して上
向き付勢されている。３７はストツパボルトで、
ブラケツト３４にナツト３８により突出量調整自
在にねじ込固定されており、ストツパボルト３７
の先端は入口側ガイド２０の上面に当接してい
る。一方３９は受ローラで、軸４０を介して入口
側ガイド２０の下面に突設した耳部４１に回転自
在に支持されている。４２は入口側ガイド２０の
下面に穿設した窓で、受ローラ３９の上部がこの
窓４２から入口ガイドの圧延材通路２１内に突出
している。 In the figure, parts given the same reference numerals as in FIG. 1 indicate the same parts as in FIG. 1. Reference numeral 20 denotes a substantially rectangular cylindrical entrance side guide, which has a rolled material passage 21 and is attached to the front wall 23 of the looper 22 so as to be movable up and down. That is, the collars 24 and 25 of the entrance guide base are slidably guided by guide rails 27 and 28 that extend in the vertical direction and have an L-shaped cross section and are attached to the side wall 26 of the looper. In addition, an eye bolt 3 is connected to an ear portion 29 protruding from the upper surface of the entrance side guide 20 via a pin 30.
1 are connected to each other, and a spring receiver 33 is attached to the upper part of this eye bolt by a lock nut 32.
Reference numeral 34 denotes a bracket fixed to the front wall 23 of the looper, and a compression spring 36 is interposed between this bracket and the spring receiver 33, and the spring force of this compression spring causes the entrance side guide 20 to move upward via the eye bolt 31. energized. 37 is the stopper bolt,
It is screwed and fixed to the bracket 34 with a nut 38 so that the amount of protrusion can be adjusted freely, and the stopper bolt 37
The tip is in contact with the upper surface of the entrance side guide 20. On the other hand, reference numeral 39 denotes a receiving roller, which is rotatably supported via a shaft 40 by an ear portion 41 protruding from the lower surface of the entrance side guide 20. 42 is a window bored in the lower surface of the entrance guide 20, and the upper part of the receiving roller 39 projects through this window 42 into the rolled material passage 21 of the entrance guide.
上記構成のルーパ２２を使用するには、ストツ
パボルト３７の突出量を調節して受ローラ３９に
よりガイドされる圧延材がパスライン７に沿つて
水平に走行するように受ローラ３９の位置を調整
する。次に押圧ローラ４を上方へ引上げ、この状
態で圧延材を前段側の圧延機の出口ガイド１４か
ら送出すれば、圧延先端部は受ローラ３９により
パスライン７に沿つて円滑にガイド９（第１図参
照）内に誘導される。圧延材先端部が後段側の圧
延機に導入されたら、ガイド９を開放後シリンダ
５により押圧ローラ４を鎖線５０で示す位置まで
下降させれば圧延材のループが形成されるが、こ
のとき押圧ローラ４により押された圧延材の剛性
により圧延材を介して受ローラ３９がほぼ下向き
に押圧され、これにより圧縮ばね３６がたわんで
入口側ガイド２０が下方へ移動し、受ローラ３９
は鎖線５１で示す位置まで下降する。これに伴つ
て受ローラ３９に係合する圧延材の中心線は、鎖
線５２で示すように受ローラ３９付近でパスライ
ン７から離間し、圧延機の出口ガイド１４付近で
はほぼパスライン７に一致するので、出口ガイド
１４との圧接による圧延機のカキ疵発生が防止さ
れる。 To use the looper 22 configured as described above, the amount of protrusion of the stopper bolt 37 is adjusted to adjust the position of the receiving roller 39 so that the rolled material guided by the receiving roller 39 runs horizontally along the pass line 7. . Next, when the pressure roller 4 is pulled upward and the rolled material is sent out from the exit guide 14 of the preceding rolling mill in this state, the rolling tip is smoothly moved along the pass line 7 by the receiving roller 39 into the guide 9 (the (see Figure 1). When the leading end of the rolled material is introduced into the subsequent rolling mill, the guide 9 is released and the pressure roller 4 is lowered by the cylinder 5 to the position shown by the chain line 50 to form a loop of the rolled material. Due to the rigidity of the rolled material pushed by the roller 4, the receiving roller 39 is pressed substantially downward via the rolled material, which causes the compression spring 36 to bend and the entrance side guide 20 to move downward, and the receiving roller 39
is lowered to the position indicated by the chain line 51. Along with this, the center line of the rolled material that engages with the receiving roller 39 separates from the pass line 7 near the receiving roller 39, as shown by the chain line 52, and almost coincides with the pass line 7 near the exit guide 14 of the rolling mill. Therefore, occurrence of scratches in the rolling mill due to pressure contact with the outlet guide 14 is prevented.
次に剛性の大きい圧延材を上記ルーパに通す場
合、押圧ローラ４を前記の場合と同様に鎖線５０
の位置迄下降させると、受ローラ３９は圧延材の
剛性によりさらに下方へ押圧されて入口側ガイド
２０と共に鎖線５３で示す位置まで下降する。こ
れに伴つて圧延材の中心線は鎖線５４で示すよう
になるが、圧延機の出口ガイド１４の出口附近に
おいてはやはりパスライン７にほぼ一致するため
カキ疵の発生が防止される。なお必要に応じて圧
縮ばね３６のセツト長さを加減してばね力を調整
すれば、さらに広範囲の圧延材の剛性変化に対し
て、確実に出口ガイド１４部におけるカキ疵の発
生を防止できる。 Next, when passing a rolled material with high rigidity through the looper, the press roller 4 is moved along the chain line 50 as in the previous case.
When the receiving roller 39 is lowered to the position indicated by the chain line 53, the receiving roller 39 is further pressed downward by the rigidity of the rolled material and descends together with the entrance side guide 20 to the position shown by the chain line 53. As a result, the center line of the rolled material becomes as shown by a chain line 54, but near the exit of the exit guide 14 of the rolling mill it almost coincides with the pass line 7, thereby preventing the occurrence of scratches. By adjusting the set length of the compression spring 36 as necessary to adjust the spring force, it is possible to reliably prevent the occurrence of scratches in the outlet guide 14 even over a wide range of changes in the rigidity of the rolled material.
上記実施例においては受ローラ３９を軸支した
入口側ガイド２０全体を昇降させるようにした
が、入口側ガイド２０と軸４０を切離して入口側
ガイドはルーパの前壁に固定し、軸４０およびこ
れに支持された受ローラ３９をばねにより上向き
に付勢して昇降させる構成としてもよく、さらに
受ローラ３９を水平軸のまわりに回動自在なレバ
ーに軸着し、このレバーをばねにより回動させる
ように付勢して受ローラ３９をパスラインに接近
する方向に付勢するようにしてもよい。 In the above embodiment, the entire inlet guide 20 with the receiving roller 39 supported on the shaft is moved up and down, but the inlet guide 20 and the shaft 40 are separated and the inlet guide is fixed to the front wall of the looper, and the shaft 40 and The receiving roller 39 supported by this may be upwardly biased by a spring to move up and down.Furthermore, the receiving roller 39 may be pivoted to a lever rotatable around a horizontal axis, and this lever may be rotated by a spring. Alternatively, the receiving roller 39 may be biased in a direction toward the pass line by being biased so as to move.
なお以上はこの発明をダウンルーパに適用した
場合について説明したが、この発明はサイドルー
パ、アツプルーパなどの各種のルーパにも適用で
きるものである。 Although the present invention has been described above in the case where it is applied to a down looper, the present invention can also be applied to various types of loopers such as a side looper and an up looper.
以上説明したようにこの発明によれば受ローラ
をパスラインに対し接近離間自在に支持し、受ロ
ーラをパスラインに接近する方向に付勢するばね
と、受ローラのパスラインに対する接近位置を規
制するストツパとを設けたので、圧延材の先端部
はガイドの端面に衝突することなくパスラインに
沿つてガイド内に円滑に誘導されるとともに、ル
ープ形成時においては受ローラが圧延材の剛性に
応じた量だけ下方へ移動することにより圧延機出
口ガイドとの圧接による圧延材のカキ疵の発生が
防止される。またばねを用いた受ローラの支持構
造は極めて簡潔で複雑な制御装置等を一切必要と
しないので、故障が少なく安価に製作でき、既設
ルーパの改造も容易である。 As explained above, according to the present invention, the receiving roller is supported so as to be able to move toward and away from the pass line, and the spring that biases the receiving roller in the direction of approaching the pass line and the regulating position of the receiving roller with respect to the pass line are used. Since the tip of the rolled material is smoothly guided into the guide along the pass line without colliding with the end face of the guide, the receiving roller is also provided with a stopper to prevent the rolling material from colliding with the rigidity of the rolled material when forming a loop. By moving downward by a corresponding amount, occurrence of scratches on the rolled material due to pressure contact with the rolling mill exit guide is prevented. Further, the support structure of the receiving roller using a spring is extremely simple and does not require any complicated control device, so it is less likely to break down and can be manufactured at low cost, and an existing looper can be easily modified.
第１図は従来のルーパの一例を示す略示側面
図、第２図はこの発明の一実施例を示すルーパの
要部縦断面図、第３図は第２図のＡ−Ａ線断面図
である。
４……押圧ローラ、５……シリンダ、７……パ
スライン、２……入口側ガイド、２２……ルー
パ、２７……ガイドレール、２８……ガイドレー
ル、３１……アイボルト、３３……ばね受け、３
４……ブラケツト、３６……圧縮ばね、３７……
ストツパボルト、３９……受ローラ、４０……
軸。
FIG. 1 is a schematic side view showing an example of a conventional looper, FIG. 2 is a vertical cross-sectional view of essential parts of a looper showing an embodiment of the present invention, and FIG. 3 is a cross-sectional view taken along line A-A in FIG. It is. 4... Press roller, 5... Cylinder, 7... Pass line, 2... Entrance side guide, 22... Looper, 27... Guide rail, 28... Guide rail, 31... Eye bolt, 33... Spring receive, 3
4... Bracket, 36... Compression spring, 37...
Stopper bolt, 39...Receiving roller, 40...
shaft.
Claims (1)
延材を押圧するループ形成用の押圧ローラと、該
押圧ローラの前段部にかつパスラインに対してル
ープ形成側に配設された受ローラとをそなえたル
ーパにおいて、上記受ローラをパスラインに対し
て接近離間自在に支持し、上記受ローラをパスラ
インに接近する方向に付勢するばねと、上記受ロ
ーラのパスラインに対する接近位置を規制するス
トツパとを設けたことを特徴とするルーパ。1. A pressure roller for loop formation that is driven by a drive device and presses the rolled material is provided at the inlet of the rolled material, and a receiving roller is provided at the front stage of the pressure roller and on the loop forming side with respect to the pass line. The provided looper supports the receiving roller so as to be able to move toward and away from the pass line, and includes a spring that biases the receiving roller in a direction toward the pass line, and a spring that restricts the approach position of the receiving roller with respect to the pass line. A looper characterized by having a stopper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15453980A JPS5779012A (en) | 1980-11-01 | 1980-11-01 | Looper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15453980A JPS5779012A (en) | 1980-11-01 | 1980-11-01 | Looper |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5779012A JPS5779012A (en) | 1982-05-18 |
| JPS6149001B2 true JPS6149001B2 (en) | 1986-10-27 |
Family
ID=15586462
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15453980A Granted JPS5779012A (en) | 1980-11-01 | 1980-11-01 | Looper |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5779012A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103182395A (en) * | 2013-04-12 | 2013-07-03 | 马钢(集团)控股有限公司 | Vertical loop device for high-speed wire rod rolling mill |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55154540A (en) * | 1979-05-22 | 1980-12-02 | Furukawa Electric Co Ltd:The | Electrically-conductive wear-resistant copper alloy and its manufacture |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53133847U (en) * | 1977-03-30 | 1978-10-23 |
-
1980
- 1980-11-01 JP JP15453980A patent/JPS5779012A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55154540A (en) * | 1979-05-22 | 1980-12-02 | Furukawa Electric Co Ltd:The | Electrically-conductive wear-resistant copper alloy and its manufacture |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103182395A (en) * | 2013-04-12 | 2013-07-03 | 马钢(集团)控股有限公司 | Vertical loop device for high-speed wire rod rolling mill |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5779012A (en) | 1982-05-18 |
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