JPS6289503A - Joining method for rolling material - Google Patents

Abstract

PURPOSE:To make smooth and secure joining in a short period by separately blanking the rear end of a preceding rolling material and the front end of a succeeding rolling material to a jigsaw shape, fitting the ends to each other and welding the side faces of the ends thereof. CONSTITUTION:The preceding rolling material 6a is advanced into a guide passage 90a for said material and the succeeding rolling material is advanced into a guide passage 90b for said material in a roughing line. Both materials 6a, 6b are stopped and the injection of an inert gas from fine holes provided to upper knives 51a, 51b or lower knives 52a, 52b is started. The rear end of the preceding rolling material 6a is cut to the jigsaw shape by a lower blade unit 50a and the front end of the succeeding rolling material 6b is cut to the jigsaw shape by an upper blade unit 50b. The unit 50a and the passage 90a are raised and the unit 50b and the passage 90b are lowered so that the cut ends of the rolling materials 6a, 6b are fitted to each other. The injection of the inert gas is stopped and the side edges of the fitted parts are joined to each by welding.

Description

【発明の詳細な説明】 （イ）産業上の利用分野 本発明は、粗圧延材ケ接合して連続的に仕上・モ延を行
う連続熱間圧延ラインにおける粗圧延材の、成金方法に
関するものである。Detailed Description of the Invention (a) Industrial Application Field The present invention relates to a metal forming method for rough rolled materials in a continuous hot rolling line in which rough rolled materials are joined and continuously subjected to finishing/molding. It is.

（ロ）従来技術 近年、通板性の向上、スクラップ・ロスの減少、作業能
率の向上を図るために、連続熱間圧延が提案されている
。この連続熱間圧延は、粗圧延機と仕上圧延機との間で
、先行圧延材の後端部と後行圧延材の先端部と次溶接等
によって接合して仕上圧延を連続し℃行うものである。(B) Prior Art In recent years, continuous hot rolling has been proposed in order to improve threadability, reduce scrap loss, and improve work efficiency. This continuous hot rolling is a process in which the trailing end of the preceding rolled material and the leading end of the following rolling material are joined by welding, etc. between a rough rolling mill and a finishing rolling mill, and finishing rolling is performed continuously at ℃. It is.

不発明の方法が適用される従来の代表的な連続熱間圧延
ラインを第２図を参照して説明する。粗圧延機１でＦｆ
延された粗圧延利は、巻取機２にコイル状に巻ぎ取られ
ろ。粗圧延材のコイル３は、巻取機２からクレードル４
上に移し換えられ、そこから巻き戻され℃接合機５に送
られろ。枳合機５では先行圧延材６ａの６”；：　！４
ｉ部と後行圧延材６ｈの先端部とが接合され、ルーパ７
をかいし粗仕上圧延機８に夕）１続的に送られろ。A typical conventional continuous hot rolling line to which the inventive method is applied will be explained with reference to FIG. Ff in rough rolling mill 1
The rolled rough rolled product is wound into a coil by a winder 2. A coil 3 of roughly rolled material is transferred from a winder 2 to a cradle 4.
From there, it is rewound and sent to the °C bonding machine 5. In the combination machine 5, the pre-rolled material 6a is 6";: !4
The i part and the tip of the trailing rolled material 6h are joined, and the looper 7
Then, it is continuously sent to the rough finishing mill 8).

従来の接合法におい又しま、先行および後行圧延材の蛙
部を別々に切断してから、つ：植部を相互に接合してい
た。こび）方法では手間がかかる上に端部の接合が円滑
に行われにくい。そこで、この方法を改善するために、
接合Ａ４部を重ね合せて切ｒ、士［−する方法が開発さ
れた。In the conventional joining method, the frog parts of the leading and trailing rolled materials are cut separately, and then the raised parts are joined to each other. This method is time-consuming and difficult to join the ends smoothly. Therefore, in order to improve this method,
A method has been developed in which the A4 joints are overlapped and cut.

その接合法に、先行圧延材後端部と後行圧延材先Ｆ；：
’　ＨＢとを重ね合せ、端部の開口幅が内奥部の幅より
も狭くなったジグソ形状（以下、ジグソ形状という。）
に打ち抜いていた。この方法では第３図に示すように切
断先端部のカエリが互いに対向−ｒ７）方向に発生する
。そのため、切断後、面圧延材の先後端部な互いに補完
的に重ね合せ、押し込みながら嵌め合すさいに、互いに
対向したカエリのａ荘によりそのスムーズな嵌合が妨げ
られ、圧延能率の向上が達［ｙできなかった。In the joining method, the rear end of the preceding rolled material and the tip F of the trailing rolled material;
' A jigsaw shape in which the opening width at the end is narrower than the width at the inner depth by overlapping the HB (hereinafter referred to as the jigsaw shape).
It was punched out. In this method, as shown in FIG. 3, burrs occur at the cutting tips in directions opposite to each other. Therefore, after cutting, when the leading and trailing ends of the surface-rolled material are overlapped complementary to each other and fitted together while being pressed, smooth fitting is hindered by the opposing burrs, which hinders the improvement of rolling efficiency. I couldn't do it.

さらに、不出１叩人に係るＳ　Ｒｊ１昭５９−２２５４
．８７号（特開昭６１−　　　　号公報）には圧延材の
先後端部を重ね合せ℃切断・嵌合を同時に行う方法を開
示し又いる。この方法は、切断端部にカエリが生じない
ので端部の嵌合が円滑に行われろ。In addition, S Rj1 1984-2254 regarding the person who did not appear 1.
．． No. 87 (Japanese Unexamined Patent Publication No. 1987) discloses a method in which the leading and trailing ends of rolled materials are overlapped and cutting and fitting are performed at the same time. This method does not cause burrs on the cut ends, so the ends can be fitted smoothly.

しかし、この方法では端部クロップの排除に間即かあり
、また、嵌合の締代の、Ｈｌ：節ができない。However, with this method, the end crop is quickly removed, and the Hl: knot of the interference of fitting cannot be formed.

さらに、本出願人に係る特願昭５９−２６０５４３号（
特開昭６１−　　　　　号公報）には、圧延材の先後端
部シ別個に同一タイミングで切断し、切断後直ちに両切
断部を相互に補完し合うように嵌合し、接合を完了させ
る方法を「羽示し１いろ。Furthermore, Japanese Patent Application No. 59-260543 (
Japanese Unexamined Patent Application Publication No. 1986-61 discloses a method in which the front and rear ends of a rolled material are cut separately at the same timing, and immediately after cutting, the two cut parts are fitted to complement each other to complete the joining. “Hasashi 1 color.

この方法は、カエリの処理および端部クロップの排除の
点でに十分に改良され又いろ。しかし、圧延材の端部切
断後に瞬間的に切断面にスケールが発生し、後の端部成
金に支障をきたし壬いる。This method has been significantly improved in handling burrs and eliminating edge crops. However, scale is generated instantaneously on the cut surface after the end of the rolled material is cut, which may impede subsequent end metal forming.

圧延材の切断から接合までを無酸化雰囲気にする必要が
あるが、作芋性保守、効果の面で有効ではない。Although it is necessary to maintain an oxidation-free atmosphere from cutting to joining the rolled material, this is not effective in terms of maintenance and effectiveness of potato cultivation.

０″１　　発明が解決しようとする間穎点本分明が解決
しようとするｉ）１，１黴点は、切断時に圧電材の先後
端部にカエリが対向して発生するのを防止し、端部クロ
ップの排除を容易確実に行い、嵌合締代を任首に選定で
き、切断時から接合完了時まで切断面にスケールを発生
させず、切断ｑ・の補完的な嵌め合し・を支障なく確実
、迅速に行う圧延材の接合方法を得ろことにある。0''1 Problems to be solved by the present invention i) 1.1 Problems to be solved by the present invention are to prevent burrs from occurring at the front and rear ends of the piezoelectric material during cutting, and to prevent the formation of burrs at the ends. It is possible to easily and reliably remove the part crop, the fitting interference can be selected arbitrarily, and no scale is generated on the cut surface from the time of cutting to the time of completion of joining, and it does not interfere with the complementary fitting of cutting q. The object of the present invention is to obtain a method for joining rolled materials that is reliable and quick.

（−問題点を解決するための手段 大発明の圧延材の接合方法は、粗圧延後の先行圧延材の
後端部と粗圧延後の後行圧延セの赤外１部とを接合し又
速続的に仕上圧延を行う連続熱間圧延ラインにおいて該
ラインに関して上狽１１および下側に別個に移動する圧
延椙誘導用］Ｙ口路を設けること、各・小路に１対の上
刃および下刃からなる上側および下側刃物ユニットを設
けること、前記上刃および下刃を端部の開口幅が内奥部
のｌｑ７よりも狭くなったジグソ形状であって十目互に
補完し合うように成形ヤろこと、前記上刃または下刃の
端、面に１４（数のη１１孔を開は１該細孔かも不活性
カスな噴射すること、前記の先端部および後端部を＠記
の各１対の上側刃物ユニットおよび下側刃物ユニットに
よってそれぞれ同一タイミングで切断すること、前記切
断と同時に切断先後端部を互いに嵌合方向に移動させか
つ前記の各通路ケ前記ラインに一致するように移動させ
ながら前記上（１（１１および下側刃物ユニットによっ
て前記切断端部を相互に補完し合うように嵌め合うこと
、該嵌合部側縁を溶ツ９−ｆろことからなる手段によっ
て、上記間顕点ケ解決しでいる。(- Means for Solving Problems The method of joining rolled materials of the great invention is to join the rear end of the preceding rolled material after rough rolling and the infrared part of the trailing rolling section after rough rolling. In a continuous hot rolling line that performs rapid finish rolling, a Y-way is provided for guiding the rolling mill which moves separately to the upper and lower sides of the line, and a pair of upper blades and a Y-way are provided in each path. Upper and lower cutter units consisting of lower blades are provided, and the upper and lower blades have a jigsaw shape in which the opening width at the end is narrower than 1q7 at the inner depth, and the ten blades complement each other. 14 (Number of η11 holes are opened in the surface of the upper or lower blade end, and the inert scum is injected into the pores. The tip and rear ends are Cutting is performed at the same timing by each pair of upper cutter unit and lower cutter unit, respectively, and at the same time as the cutting, the rear ends of the cutting tips are moved in the fitting direction with each other, and each of the passages is aligned with the line. By means of fitting the cut ends by the upper (1 (11) and lower cutter unit so as to complement each other) while moving the cutting edge to , the above points have been resolved.

（ホ）実施例 本発明の方法においては、第２図に示ｆ接合機５におい
て、先行圧延材の後端部と後行圧延材の先端部とを別個
にジグソ形状に打ち抜き、端部を嵌め合い、端部凹１面
′？溶接して接合を完了する。(E) Example In the method of the present invention, in the welding machine 5 shown in FIG. Fitting, concave end 1 side'? Weld to complete the joint.

ジグソ形状に打抜きを行う刃物の一例を第３図および第
４図に示す。第３図は刃物の平面シ１であり、また、第
４図は刃物のｌ１１１面図である。第３図に示すように
、刃物５０（ま相互に嵌合するジグソ形状の上刃５１と
下刃５２とからできている。上刃５１と下刃５２とは同
じ形状になっ℃いて・いずれか一方が上刃となったとき
は、他方げ下刃となる。An example of a cutter for punching into a jigsaw shape is shown in FIGS. 3 and 4. FIG. 3 is a plan view 1 of the cutter, and FIG. 4 is a 111-plane view of the cutter. As shown in FIG. 3, the cutter 50 is made up of a jigsaw-shaped upper blade 51 and a lower blade 52 that fit into each other.The upper blade 51 and the lower blade 52 have the same shape. When one becomes the upper blade, the other becomes the lower blade.

上刃５１または下刃５２の切１６〒エツジ部は、第４図
に示すようにテーバが付けられ１いる。このテーパは、
圧延材の打抜きを円滑にするためである。The cutting edges of the upper blade 51 or the lower blade 52 are tapered as shown in FIG. This taper is
This is to facilitate punching of the rolled material.

本発明の方法においては、上刃５１もしくは下刃５２の
いずれか一方、または上刃５１および下刃５２の両者に
、似５図および第６図に示すように、上刃５１または下
刃５２の端面５２０（第６図では下刃５２の端面５２０
の場合を示す。）に複数の細孔５２１を開け、不活性ガ
ス供給源（図示せず）からこれら細孔５２１に不活性ガ
スを供給し、外部へ不活性ガスを噴射させろ。In the method of the present invention, either the upper blade 51 or the lower blade 52 or both the upper blade 51 and the lower blade 52 are provided with a end surface 520 of the lower blade 52 (in FIG. 6, the end surface 520 of the lower blade 52
The case is shown below. ), open a plurality of pores 521, supply inert gas to these pores 521 from an inert gas supply source (not shown), and inject the inert gas to the outside.

基本的には、圧延材（クロップではない）の端面に接す
る方の刃面から不活性ガスヶ噴射するように構成すれば
よい。Basically, the inert gas may be injected from the blade surface that is in contact with the end surface of the rolled material (not the crop).

このようにして構成した上刃５１および下刃５２を、前
述した本出願人に係る特願昭５９−２６０５４３号に開
示した方法に適用する。第１図は、その方法？実施する
装置の４既略説明図である。The upper blade 51 and lower blade 52 constructed in this manner are applied to the method disclosed in the aforementioned Japanese Patent Application No. 59-260543 filed by the present applicant. Figure 1 shows how? FIG. 4 is a schematic explanatory diagram of the apparatus to be implemented.

第１図において、圧延材の通常の搬送ライン９に関し壬
、その下Ｍｌｉ１１および上（１１１ｉにそれぞれ下側
１刃物ユニット５０α、および上側刃物ユニノ）　５０
ｂが設けられる。以下の設明では、先行圧延材に関連す
る設備には添字αを、また、後行圧延材に関連する設備
には添字ｈ？それぞれ付する。さらＫ、上側および下側
刃物ユニット５０ｈおよび５０ｄについ℃同一数字は同
じ機能を有するものとする。In FIG. 1, regarding the normal conveyance line 9 for rolled material, the bottom Mli 11 and the top (lower one cutter unit 50α and upper cutter unit 50 at 111i, respectively) are shown.
b is provided. In the following description, the subscript α is used for equipment related to the preceding rolled material, and the subscript h? is used for equipment related to the subsequent rolled material. Attach each. Further, it is assumed that the same numbers in degrees Celsius have the same functions for the upper and lower cutter units 50h and 50d.

下側刃物ユニット５０αは、上刃５１α、下刃５２α、
上刃台５１２α、下刃台５２２ａ、下刃台ストッパ５３
αからでき１いる。同様に、上側刃物ユニット５０ｂは
上刃５１ｂ１下刃５２ｂ１上刃台５１２ｈ、下刃台５２
２　ｂ、下刃台ストッパ５３ｈからできている。The lower blade unit 50α includes an upper blade 51α, a lower blade 52α,
Upper blade stand 512α, lower blade stand 522a, lower blade stand stopper 53
It is made from α. Similarly, the upper blade unit 50b includes an upper blade 51b1, a lower blade 52b1, an upper blade stand 512h, and a lower blade stand 52.
2b, it is made up of a lower blade stopper 53h.

上側および下側刃物ユニット５０ｈおよび５０４に、切
断線５００に整列される。切断＠ＳＯＯは搬送ライン９
に垂直に延びている。The upper and lower cutter units 50h and 504 are aligned with the cutting line 500. Cutting @SOO is on conveyance line 9
extends perpendicular to.

切ＩＦＪｒ緋５００に関し又搬送ライン９の上流側に後
行圧延材６ｂの誘導用の後行圧延材誘導通路９０ｈを、
また、下流側に先行圧延材６αの誘導用の先行圧延材誘
導通路９０αをそれぞれ設ける。Regarding the cutting IFJr Hi 500, a trailing rolled material guide passage 90h for guiding the trailing rolled material 6b is provided on the upstream side of the conveyance line 9.
Furthermore, a preceding rolled material guiding passage 90α for guiding the preceding rolled material 6α is provided on the downstream side.

後行圧延材誘導用通路９０ｂは、テーブル・ローラ５４
α、ガイド板５５ｈ１上限ローラ５７、上限ガイド板５
８、揺動ガイド板５９からできている。ローラ５４ｈお
よびガイド板５５ｂのうち、切断線付近の複数組（本実
施例では３組）は連動して上方へ移動できるように構成
さ°江ろ。The trailing rolling material guiding passage 90b is formed by the table roller 54.
α, guide plate 55h1 upper limit roller 57, upper limit guide plate 5
8. It is made up of a swinging guide plate 59. Among the rollers 54h and guide plates 55b, a plurality of pairs (three pairs in this embodiment) near the cutting line are configured to move upward in conjunction with each other.

先行圧延材誘導用通路９０αはテーブル・ローラ５４α
、ガイド板５５（Ｚからできていて、これらのうちの切
＠線付近の複数組（本実施例では３組）は連動し又下方
へ移動できるように構成される。The pre-rolled material guiding passage 90α is the table roller 54α.
, a guide plate 55 (Z), of which a plurality of sets (three sets in this embodiment) near the cutting line are configured to be interlocked and movable downward.

本実施例においては、通路９０αは下方にまた通路９（
ｌは上方にそれぞれ移１ａ−ｆるように説明されている
が、その逆でもよいことは以下の配り１明から明らかに
なるであろう。ただし、その場合、上刃、下刃等の前後
位道も当然に入れ換わる必要がある。In this embodiment, the passage 90α extends downwardly and the passage 9 (
Although l is explained as moving upwards 1a-f, it will be clear from the following handouts that the reverse is also possible. However, in that case, the front and back paths of the upper blade, lower blade, etc. also need to be switched.

まず、第７図から第１３図までを参照して本発明の接合
方法の概略工程を説明する。First, the general steps of the joining method of the present invention will be explained with reference to FIGS. 7 to 13.

第８図に示すように、通路９０α、９０ｈは一直線上に
水平に位置していて、先行圧延材６ａがユニット５０α
、５０ｈ’ｌ１通過し、通路９０αを通過しつつある。As shown in FIG. 8, the passages 90α and 90h are horizontally located in a straight line, and the preceding rolled material 6a is connected to the unit 50α.
, 50h'l1, and is passing through the passage 90α.

後行圧延材も後続し℃進行し℃いる。The trailing rolled material also follows and progresses by ℃.

第９図に示すように、先行圧延材６αの後端が検出器５
６αを通過したとき、先行圧延材６αの進行を停止し、
通路９０αを下方に移動させる。As shown in FIG. 9, the rear end of the preceding rolled material 6α is connected to the detector 5.
When passing through 6α, the advance of the preceding rolled material 6α is stopped,
The passage 90α is moved downward.

同様に、後行圧延材６ｂの先端が検出＠５６ｂを通過し
たとき、後行圧延材６ｂの進行を停止し、通路９０ｂを
上方に移動させる。Similarly, when the leading end of the trailing rolled material 6b passes the detection@56b, the trailing rolled material 6b stops advancing and moves upward through the passage 90b.

第１０図に示すように、先行圧延材６αを後退させて通
路９０αに進入させ、ユニット５０αにその先端が達し
たときに先行圧延材６ａを停止させる。同様に、後行圧
延材６ｈを前進させて通路９０ｂに進入させ、ユニット
５０ｈにその先端が達したときに後行圧延材６ｂを停止
させる。このとき、第７図囚に示すように、下刃５２α
、５２ｂに設けた洲孔から不活性ガスの・ツバ１村を１
柘始−室ろ。As shown in FIG. 10, the pre-rolled material 6a is retreated and enters the passage 90α, and when its tip reaches the unit 50α, the pre-rolled material 6a is stopped. Similarly, the trailing rolled material 6h is advanced to enter the passage 90b, and when its tip reaches the unit 50h, the trailing rolled material 6b is stopped. At this time, as shown in Figure 7, the lower blade 52α
, 1 village of inert gas from the hole made in 52b.
Tsuge Hajime - Muro.

１１１図に示すように、先行Ｅ−Ｆ延材６ａの後端部ち
・ユニット５０ａによってジグソ形状に切断する。As shown in FIG. 111, the leading E-F rolled material 6a is cut into a jigsaw shape by the rear end unit 50a.

同（午に、後行圧延１’６＆の先端部をユニ７　ト５０
ｈ；てよっ−ジグソ形状に切断する。このとき、第７図
１（Ｂ）に示すように、不活性ガスの噴射を継続ヤろ。(In the afternoon, the tip of the trailing rolling 1'6&
h; Cut into a jigsaw shape. At this time, as shown in FIG. 7 1(B), the injection of inert gas continues.

第１２図に示すように、圧延セロα、６ｂの切断端部を
相互に嵌合させろ。このとき、ユニット５０ａと１市路
９０ａを上昇させ、また、ユニット５ＱＡと）ｌ！’１
．ｍ　９０　ｂ　”ｌ’下降させろ。圧延材（３ａ。As shown in FIG. 12, fit the cut ends of the rolling cello α, 6b into each other. At this time, unit 50a and 1 city road 90a are raised, and unit 5QA and )l! '1
．． m 90 b "l' Lower. Rolled material (3a.

６ｈを下、降させながら嵌合させるので、圧延材６ａ、
６ｈにたるみが生じろ。このたろみを各週、Ｖ各９０　
Ｃ１，９０ｂの１つのテーブル−ｏ−ラ５４ａ。Since the rolled materials 6a, 6h are fitted while being lowered, the rolled materials 6a,
There will be slack in 6h. Each week, V90 each
One table-o-ra 54a of C1,90b.

５・１ｂで支持する。このどき、第７メ１（Ｃ）に示す
ように、不、活性ガスの噴射を停止する。Supported by 5.1b. At this point, as shown in the seventh screen (C), the injection of the inactive gas is stopped.

最後に、第１３図に示すように、嵌合部側縁を溶接した
後、圧延材を前進させて仕上圧延機８に送る。このとぎ
、一部上昇し又いたテーブル・ローラ５４ａ、５４．１
！ｌをイ也のテーフ゛ル・ローラとｊ司−′トす上（て
戻す。Finally, as shown in FIG. 13, after welding the side edges of the fitting portion, the rolled material is advanced and sent to the finishing mill 8. At this point, the table rollers 54a and 54.1, which had partially risen again.
! Return the l to the top of the table roller.

本発明の具体的実雄例におい壬に、ガス；１ζｒ射訓孔
の直径を２ｍｍ、ピッチを５０罷、窒素ガスまたはアル
ゴン・ガスを用い、１孔のガス噴出清を１〜２１　、／
　ｍｉｎ、　噴出圧力を２　ｋｇ　／　＋ｕ＋２とした
。In a specific example of the present invention, gas; the diameter of the 1ζr shooting hole is 2 mm, the pitch is 50 lines, nitrogen gas or argon gas is used, and the gas ejection rate of one hole is 1 to 21 times, /
min, and the ejection pressure was set to 2 kg/+u+2.

圧延材の切［θテ方式とじ１は、下刃を固定して上刃の
みを移動させ１圧延材の端部を打ち抜（ダウンカット方
式と、上刃および下刃の両方を移動させて圧延材の端３
１１を打ち抜くアンプ・アンド・ダウンカット方式とが
ある。Cutting of rolled material [θte method binding 1 punches the edge of rolled material by fixing the lower blade and moving only the upper blade (down cut method and by moving both the upper and lower blades) Edge of rolled material 3
There is an amplifier and down cut method that punches out 11.

以上の説明は、ダウンカット方式を例にとってなされた
が、アンプ・アンド・ダウンカット方式にも；適用でき
る。The above explanation has been made using the downcut method as an example, but it can also be applied to the amplifier and downcut method.

（へ）効果 第１の効果は先行圧延材の（Ｉ　Ｑ３部と後行圧延材の
先端部とを、別個に切断ｆることにより、カエリの対向
が防止でき、切断に引き、４７・１行われる先後外部の
補完的嵌め合いにおい又も、嵌め合いも′ｊカエリに支
障されることなくきわめてスムーズに行うことができる
ことである。切断と同時に切断先イ癖端部を互いに嵌合
方向に移動させるので、切Ｉ所から嵌め合いまでに璧す
る時１片は極めて少なく℃よい。したがって、接合所要
時間が１０秒以下：で；用１限され℃いろオンラインで
の接合に、陀いては、拍−合が円滑にできろ本発明方法
は非常に大きい効果をもたらすものである。(f) Effect The first effect is that by separately cutting the IQ3 part of the preceding rolled material and the tip of the trailing rolled material, it is possible to prevent burrs from opposing each other. In addition, the complementary fitting of the front and back external parts can be carried out extremely smoothly without being hindered by burrs.At the same time as cutting, the curved ends of the cut points are moved in the mating direction to each other. Because it is moved, there is very little one piece when joining from the cutting point to the fitting. Therefore, the joining time is less than 10 seconds. The method of the present invention brings about a very large effect in that the beats can be synchronized smoothly.

１１２の効果は上側１刃物ユニットおよび下側刃物ユニ
７ノトの各１対の刃のクリアランスを別個に圧電に選定
できろので、圧延材切断端部の・交合締代が自由）で、
・〆択でき、より強固な接合が得られろことである。The effect of 112 is that the clearance of each pair of blades of the upper 1 cutter unit and lower cutter unit 7 can be separately selected to be piezoelectric, so the mating interference of the cut end of the rolled material is free.
・It is possible to obtain a stronger bond.

、セ、３の効果は待機中の刃物にライン外で背面を、つ
、碍の圧延オオに向げ又いるので、熱による刃物の４員
ｔ、！１が激減てろことである。The effect of , SE, 3 is that the back of the cutlery is outside the line, and the 4th member of the cutlery due to the heat is facing the rolling mill. 1 should be drastically reduced.

第４の効果は、圧延材の切断面にスケールが発生しない
ので、接続１四合が確実に行われ、圧着強１１Ｑ−が５
０％向上し、接続部溶成強度が７０〜８０％向上した。The fourth effect is that no scale is generated on the cut surface of the rolled material, so the connection is made reliably and the crimp strength 11Q- is 5.
The welding strength of the joint was improved by 70 to 80%.

４〔図面の簡単な１７（、明〕 第１図は本発明のＴ７５法を実施する装置の概略説明し
Ｉ。犀）、２図は本発明の方法を適用した連続熱間圧電
ラインの責略需明図。第３図に本発明の方、去に用（・
る１対の刃ｊ吻の平面図。第４図は第３図のｒｖ−ｒｖ
線からみた側面図。寥５図は本発明の方法にもとづく上
刃と下刃との嵌合状態を示す斜視図。4 [Simplified drawings] Figure 1 provides a schematic explanation of the apparatus for carrying out the T75 method of the present invention, and Figure 2 shows the responsibility of a continuous hot piezoelectric line to which the method of the present invention is applied. Rough demand diagram. Figure 3 shows the method of the present invention (・
A plan view of a pair of blade proboscis. Figure 4 shows the rv-rv of Figure 3.
A side view seen from the line. Figure 5 is a perspective view showing the fitted state of the upper blade and lower blade based on the method of the present invention.

第６図は刃物の端面な示す正面図。第７図は本発明の切
断嵌合上根の概略説明図。第８図から第１３図までシエ
本発明の方法の工程説明図。FIG. 6 is a front view showing the end face of the knife. FIG. 7 is a schematic explanatory diagram of the cutting and fitting upper root of the present invention. FIG. 8 to FIG. 13 are process explanatory diagrams of the method of the present invention.

１：ｉ′ｌｉ圧延機　　　　　２：巻取根３：コイル　
　　　　　４：クレードル５：接合機　　　　　６ａ：
先行圧延材６ｂ：後行圧延材　　　　７：ルーバ ８：仕上圧延機　　　５０：刃　物 ５０ａ：下Ｉｌｌ刃物ユニット　５０ｂ：上側刃物ユニ
ット５１ａ、　５１ｂ　：上刃　５２（Ｚ、　５２ｂ　
：下刃５］、２（Ｚ、　５１２１５　：上刃台　５２２
α、５２２ｂ：下刃台ローラ ５５ａ、５５ｂニガイド１反　　９：搬送ライン５００
：切断線　　　　　　９０ａ：先行圧延材誘導通路９０
ｂ：後行圧婢材誘導通路 時許出禎人　　住友金１に）工業株式会社（外５名） ｚＵ1: i'li rolling mill 2: Winding base 3: Coil
4: Cradle 5: Joining machine 6a:
Leading rolled material 6b: Following rolling material 7: Louver 8: Finishing rolling mill 50: Cutting tool 50a: Lower Ill cutting tool unit 50b: Upper cutting tool unit 51a, 51b: Upper cutting tool 52 (Z, 52b)
:Lower blade 5], 2(Z, 51215 :Upper blade 522
α, 522b: Lower blade stand rollers 55a, 55b 1 guide 9: Conveyance line 500
: Cutting line 90a: Pre-rolled material guiding passage 90
b: At the time of trailing compressed material guidance passage, Sadato Sumitomo Metal 1) Kogyo Co., Ltd. (5 other people) zU

Claims (1)

【特許請求の範囲】[Claims] 粗圧延後の先行圧延材の後端部と粗圧延後の後行圧延材
の先端部とを接合して連続的に仕上圧延を行う連続熱間
圧延ラインにおいて、該ラインに関して上側および下側
に別個に移動する圧延材誘導用通路を設けること、各通
路に１対の上刃および下刃からなる上側および下側刃物
ユニットを設けること、前記上刃および下刃を端部の開
口幅が内奥部の幅よりも狭くなったジグソ形状であって
相互に補完し合うように成形すること、前記上刃または
下刃の端面に複数の細孔を開けて該細孔から不活性ガス
を噴射すること、前記の先端部および後端部を前記の各
１対の上側刃物ユニットおよび下側刃物ユニットによっ
てそれぞれ同一タイミングで切断すること、前記切断と
同時に切断先行端部を互いに嵌合方向に移動させかつ前
記の各通路を前記ラインに一致するように移動させなが
ら前記上側および下側刃物ユニットによって前記切断端
部を相互に補完し合うように嵌め合うこと、該嵌合部側
縁を溶接することからなる圧延材の接合方法。In a continuous hot rolling line in which finish rolling is performed continuously by joining the rear end of the preceding rolled material after rough rolling and the tip of the trailing rolled material after rough rolling, the upper and lower sides with respect to the line are A path for guiding the rolled material that moves separately is provided, an upper and a lower cutter unit consisting of a pair of upper and lower blades is provided in each path, and the upper and lower blades have an opening width at the end thereof. Forming into a jigsaw shape that is narrower than the width of the inner part so that they complement each other, and forming a plurality of pores in the end face of the upper or lower blade and injecting inert gas from the pores. cutting the leading and trailing ends at the same timing by each pair of upper and lower blade units, and simultaneously moving the cutting leading ends in the direction of engagement with each other. and fitting the cut ends so as to complement each other by the upper and lower cutter units while moving the respective passages to match the lines, and welding the side edges of the fitting parts. A method for joining rolled materials.