JPS6123503A - Device for connecting hot rolling material - Google Patents

Abstract

PURPOSE:To connect securely rolling materials in a manner as to withstand large tensile force by forming notches and projections to the rear end of the preceding rolling material and the front end of the succeeding material between a hot roughing mill and finishing mill and connecting the two rolling materials. CONSTITUTION:The rear end of the preceding rolling material emerging from the roughing mill is securely grasped and clamped by clamping devices 2, 3. The succeeding rolling material is fed by pinch rolls 3; at the same time a stack backing plate device 11 descends diagonally and receives the succeeding rolling plate. When the succeeding rolling plate ascends along the device 11 and contacts with a stopper 11a, the rotation of the rolls 3 stops and the succeeding rolling material is clamped. The device 11 is pulled up and the front end of succeeding rolling material is superposed on the rear end of the preceding rolling plate. The notches 15 and projections 16 are blanked by upper and lower tool rests 4, 7. The rear end and front end of the two rolling plates are connected in these parts and the two joined ends are welded by a welding machine 8. The rolling plates are connected in the coupled part which withstands the large tensile force in the longitudinal direction.

Description

【発明の詳細な説明】 （１）　　産業上の利用分野 本発明は熱間圧延ラインの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を連結さ
せるための熱間圧延材連結装置に関する。DETAILED DESCRIPTION OF THE INVENTION (1) Industrial field of application The present invention provides a method for rolling a hot rolling line between a rough rolling mill and a finishing mill. The present invention relates to a hot rolled material connecting device for connecting.

（２）従来の技術 圧延材の先端部が圧延機を通過する際、通板を確実にす
るためにラインスピードを落とさねばならない。また、
圧延材の先端部（＋−ンプ）および後端部（ボトム）に
は張力が加わらないため、圧延後に所定の板厚にならず
（オフゲージ）、したかってこれらの部分はスクラップ
となる。(2) Conventional technology When the leading end of a rolled material passes through a rolling mill, the line speed must be reduced to ensure reliable threading. Also,
Since no tension is applied to the tip end (+-ump) and rear end (bottom) of the rolled material, the predetermined thickness is not achieved after rolling (off-gauge), and these parts become scrap.

そこで、先行圧延材の後端部と後行圧延材の先端部とを
連結して圧延することにより、ラインスピードの維持と
スクラップ率の低減とを図ることが行なわれている。Therefore, it has been attempted to maintain the line speed and reduce the scrap rate by connecting the trailing end of the preceding rolled material and the leading end of the trailing rolling material for rolling.

従来の圧延材連結装置トーシては、先行圧延材の後端部
と後行圧延材の先端部とを突合せ溶接する装置、または
両端部を重ね合せて圧着する装置などが知られている。As conventional rolled material connecting devices, there are known devices that butt weld the rear end of a preceding rolled material and the leading end of a subsequent rolled material, or devices that overlap and press-bond both ends.

しかしながら、突合せ溶接する装置では、引張強度を確
保するために両端部の対向エツジ全体を溶接する必要が
あり、これには　　　　　　・）１０秒以上の時間を要
する。これではラインスピードに与える影響が大きく、
また、このように突合せ溶接しても充分な引張強度が得
られるという保証はない。一方、重ね合せて圧着する装
置では、重ね合せた部分が局部的に厚くなり、圧延後に
幅広となるので、のちに矯正もしくは切断作業が必要と
なる。However, in a butt welding device, it is necessary to weld the entire opposing edges of both ends to ensure tensile strength, and this takes 10 seconds or more. This has a big impact on line speed,
Furthermore, there is no guarantee that sufficient tensile strength will be obtained even with such butt welding. On the other hand, in the case of a device that overlaps and presses the sheets, the overlapped portion becomes locally thick and widened after rolling, which requires straightening or cutting later.

（３）発明が解決しようとする問題点 本発明は、上述したような従来の圧延材連結装置の欠点
を解消し、先行および後行圧延材を短時間で連結できる
圧延材連結装置であって、連結部は大きな引張力に充分
耐えることができ、後処理の必要もないｌｔｈ延材連結
装置を提供することを目的とする。(3) Problems to be Solved by the Invention The present invention is a rolled material connecting device that solves the drawbacks of the conventional rolled material connecting device as described above and can connect preceding and trailing rolled materials in a short time. The object of the present invention is to provide a lth elongated material connecting device in which the connecting portion can sufficiently withstand a large tensile force and does not require post-processing.

〈４）問題点を解決するだめの手段 本＃！Ｉ￥は、上記１」的を達成するための手段として
第１の発明の構成と第２の発明の構成とを開示する。〈4) Book of no-go methods for solving problems #! I¥ discloses the configuration of the first invention and the configuration of the second invention as means for achieving the above-mentioned objective 1.

第１の発明による熱間圧延材連結装置は、熱間圧延ライ
ンの粗圧延機と仕上圧延機との間に設けられ、圧延制の
長手方向に進退可能な台車と、該台車上の前方に設けら
れた先行圧延材クランプ装置と、該台車上の後方に設け
られた後行田延材クランプ装置と、該台車上のほぼ中央
に設けられ、先行圧延材の後端部と後行圧延材の先端部
とを重ね合せた部分を打抜くことにより、前記後端部お
よび前記先端部のそれぞれに先端の開口幅が後端の開口
幅よりも狭くなった形状の切欠き部と該切欠き部に対し
て補完的に嵌まり合う形状をなす突出部とを同時に形成
可能な刃を備えた鋼板打抜き装置と、該鋼板打抜き装置
に隣接して前記台車上に設けられ、打抜き後の鋼板の端
材を除去するための端材除去装置と、前記台車上のほぼ
中央に設けられ、打抜き後の前記後端部および前記先端
部を同一平面内に押戻して前記切欠き部と前記突出部と
を嵌め合せるための押戻し装置と、前記鋼板打抜き装置
および前記押戻し装置に隣接して前記台車上に設けられ
、前記切欠き部と前記突出部とが族め合されたのちに前
記後端部と前記先端部との連結部の少なくとも一部を溶
接するための溶接装置と、前記台車と仕上圧延機との間
に設けられ、圧延材連結作業時にラインから側方へと外
れるよ５に移動０Ｔ能な間引きａ−ラテーブルとを備え
てなる。A hot rolled material coupling device according to a first aspect of the present invention is provided between a rough rolling mill and a finishing rolling mill of a hot rolling line, and includes a bogie that can move back and forth in the longitudinal direction of the rolling mill, and A preceding rolled material clamping device provided, a trailing rolled material clamping device provided at the rear of the cart, and a trailing rolled material clamping device provided approximately in the center of the cart, which clamps the rear end of the preceding rolled material and the trailing rolled material. By punching out the overlapped portion of the distal end, a notch is formed in each of the rear end and the distal end, and the opening width of the distal end is narrower than the opening width of the rear end; a steel plate punching device equipped with a blade capable of simultaneously forming a protrusion having a shape that complementarily fits into the steel plate; a scrap removal device for removing the material; and a scrap removal device provided approximately in the center on the cart, for pushing back the rear end portion and the tip portion after punching into the same plane to form the cutout portion and the protrusion portion. A push-back device is provided on the truck adjacent to the steel plate punching device and the push-back device for fitting together, and after the notch and the protruding portion are fitted together, the rear end a welding device for welding at least a part of the connecting portion between the part and the tip end; and a welding device provided between the cart and the finishing rolling mill to prevent it from coming off laterally from the line during the work of connecting rolled materials. It is equipped with a thinning a-ra table capable of moving 0T.

第２の発明による熱間圧延材連結装置は、第１の発明の
構成の主要部を主要部としており、熱間圧延ラインの粗
圧延機と仕上圧延機との間に設けられた固定の架台と、
該架台上の前方に設けられた先行圧延材クランプ装置と
、該架台上の後方に設けられた後行圧延材クランプ装置
と、該架台上のほぼ中央に設けられ、先行圧延材の後端
部と後行圧延材の先端部とを重ね合せた部分を打抜くこ
とにより、前記後端部および前記先端部のそれぞれに先
端の開口幅が後端の開口幅よりも狭くなった形状の切欠
き部と該切欠き部に対して補完的に辰まり合う形状をな
す突出部とを同時に形成可能な刃を備えた鋼板打抜き装
置と、該鋼板打抜き装置に隣接して前記架台上に設けら
れ、打抜き後の鋼板の端材を除去するための端材除去装
置と、前記架台上のほぼ中央に設けられ、打抜き後の前
記後端部および前記先端部を同一平面内に押戻して前記
切欠き部と前記突出部とを嵌め合せるための押戻し装置
と、前記鋼板打抜き装置および前記押戻し装置に隣接し
て前記架台上に設けられ、前記切欠き部と前記突出部と
が嵌め合されたのちに前記後端部と前記先端部との連結
部の少なくとも一部を溶接するための溶接装置と、前記
架台と仕上圧延機との間に設けられ、圧延材連結作業時
に先行圧ｆ）］ＥｉＪを一時滞留させるためのルーパー
装置とを備えてなる。The hot rolled material connecting device according to the second invention has the main part of the configuration of the first invention as a main part, and has a fixed frame provided between a rough rolling mill and a finishing rolling mill of a hot rolling line. and,
A preceding rolled material clamping device provided on the front of the pedestal, a trailing rolled material clamping device provided on the rear of the pedestal, and a rear end portion of the preceding rolled material provided approximately in the center of the pedestal. By punching out the overlapping portion of and the leading end of the trailing rolled material, a notch is formed in each of the trailing end and the leading end so that the opening width at the leading end is narrower than the opening width at the trailing end. a steel plate punching device equipped with a blade capable of simultaneously forming a protrusion portion and a protrusion portion having a shape complementary to the notch portion, and a steel plate punching device provided on the pedestal adjacent to the steel plate punching device, a scrap removal device for removing scraps of a steel plate after punching; and a scrap removal device provided approximately in the center on the pedestal, and pushing back the rear end portion and the tip portion after punching into the same plane to remove the cutout. a push-back device for fitting the part and the protrusion, and a push-back device provided on the pedestal adjacent to the steel plate punching device and the push-back device, and the notch and the protrusion fit together. A welding device for later welding at least a part of the connecting portion between the rear end portion and the tip end portion, and a welding device provided between the pedestal and the finishing mill, and a preliminary pressure f) during the work of connecting the rolled materials. It is equipped with a looper device for temporarily retaining EiJ.

（５）作　用 第１の発明による熱間圧延材連結装置の場合、先行圧延
材の後端部と後行圧延材の先端部とを台車上で台車とと
もに圧延ライン方向に移動させながら連結する。台車の
移動を可能とするため、連結作業時には間引きローラテ
ーブルがラインから側方へと外され、台車の通路をあけ
る。先行圧延材は後端部が鋼板打抜き装置の位置にきた
時点でクランプされ、同時に台車が先行圧延材と等速度
で移動を開始する。後行圧延材は比較的速い速度で鋼板
打抜き装置の位置まで送りこまれ、先端部　　　　　　
　１を先行圧延材の後端部に重ね合される。しかるのち
後行圧延材もクランプされ、重ね合された両端部は鋼板
打抜き装置によって所定の形状に打抜かれる。それから
端材を除去し、両端部は同一平面内に位置づけられるよ
うに押戻されることにより互いに嵌め合される。それか
ら両端部の連結係合部の所定位置が溶接され、圧延材の
連結が完了する。側圧延材はクランプを解除され、連結
された状態で圧延されてゆく。台車は元の位置に戻り、
間引きローラテーブルもラインに復帰する。(5) Effect In the case of the hot rolled material connecting device according to the first invention, the rear end of the preceding rolled material and the leading end of the trailing rolled material are connected on the trolley while moving together with the trolley in the rolling line direction. . To enable movement of the trolleys, the thinning roller table is removed from the line laterally during connection work to clear a path for the trolleys. The pre-rolled material is clamped when its rear end reaches the position of the steel sheet punching device, and at the same time the cart starts moving at the same speed as the pre-rolled material. The trailing rolled material is fed at a relatively high speed to the position of the steel sheet punching device, and the leading end is
1 is superimposed on the rear end of the previously rolled material. Thereafter, the subsequent rolled material is also clamped, and both overlapping ends are punched into a predetermined shape by a steel sheet punching device. The offcuts are then removed and the ends are pushed back so that they are positioned in the same plane, thereby fitting into each other. Then, predetermined positions of the connecting and engaging portions at both ends are welded to complete the connection of the rolled materials. The side-rolled materials are unclamped and rolled in a connected state. The trolley returns to its original position,
The thinning roller table also returns to the line.

第２の発明による熱間圧延材連結装置の場合、先行圧延
材の後端部と後行圧延材の先端部とを固定架台の上で静
止させたままで連結させる点で第１の発明の場合と異な
る。連結作業中はルーバー装置が作動されるので、先行
圧延材は連続的な圧延を受けつつ、その後端部な架台上
に静止させておくことができる。In the case of the hot-rolled material connecting device according to the second invention, it is the case of the first invention in that the rear end of the preceding rolled material and the leading end of the trailing rolled material are connected while remaining stationary on a fixed frame. different from. Since the louver device is operated during the connection operation, the pre-rolled material can be kept stationary on the pedestal at the rear end while undergoing continuous rolling.

（６）実施例 第１図は第１の発明の一実施例の概略斜示図である。図
において、１′は圧延材（図示せず）の長手方向（矢印
方向）に進退可能な台車、２は台車１上の前方に設けら
れた先行圧延材クランプ装置、３は台車１上の後方に設
けられたピンチロールであり、圧延材の給送ロールとし
て作用するとともに、後行圧延材クランプ装置として機
能する。４は上側刃物台（上、下動可能）、５は上側ホ
ルダー（上、下動可能）、６は下側ホルダー（上、下動
可能）、そして７は下側刃物台（固定）であり、これら
は鋼板打抜き装置と押戻し装置との機能を果たす。８お
よび９は溶接装置、１ｏは間引きローラテーブル、１１
は重ね当板装置である。(6) Embodiment FIG. 1 is a schematic perspective view of an embodiment of the first invention. In the figure, 1' is a trolley that can advance and retreat in the longitudinal direction (arrow direction) of rolled material (not shown), 2 is a preceding rolled material clamping device provided on the front of the trolley 1, and 3 is the rear of the trolley 1. This is a pinch roll provided in the rolling stock, which acts as a feed roll for rolled material, and also functions as a trailing rolling material clamping device. 4 is the upper turret (can move up and down), 5 is the upper holder (can be moved up and down), 6 is the lower holder (can be moved up and down), and 7 is the lower turret (fixed). , these serve as a steel plate punching device and a pushing back device. 8 and 9 are welding devices, 1o is a thinning roller table, 11
is a stacking plate device.

間引きローラテーブル１０は、第２図に示すように、台
車１と仕上圧延機１２との間に設けられ、圧延材連結作
業時にはラインから側方へと外れ、台車１が圧延材１３
の進行方向（第２図で右方）へと移動する通路をあける
。As shown in FIG. 2, the thinning roller table 10 is provided between the trolley 1 and the finishing rolling mill 12, and when the rolling material connection work is performed, it comes off the line laterally, so that the trolley 1 is connected to the rolled material 13.
Open a path for the robot to move in the direction of travel (to the right in Figure 2).

第３図の（イ）ないしく二）は、先行圧延材１３の後端
部１３ａと後行圧延材１４の先端部１４ａとが重ね合さ
れる状況を示す。まず（イ）のように、先行圧延材１３
の後端部１３ａが下側ホルダー６および下側刃物台７（
ここではいづれも図示しない）上にきた時点でクランプ
装置２を作動させ、先行圧延材１３を挾持する。と同時
に台車１は先行圧延材１３と同速度で移動を開始する。(A) to (2) of FIG. 3 show a situation in which the rear end portion 13a of the preceding rolled material 13 and the tip end portion 14a of the trailing rolled material 14 are overlapped. First, as shown in (a), the pre-rolled material 13
The rear end 13a is attached to the lower holder 6 and the lower tool rest 7 (
(none of which are shown here), the clamping device 2 is activated to clamp the preceding rolled material 13. At the same time, the cart 1 starts moving at the same speed as the preceding rolled material 13.

次に（ロ）に示すように、ピンチロール３によって後行
圧延材１４が給送されるが、その前に重ね当板装置１１
が斜めに下りてきて後行圧延材１４を待受けている。（
ハ）のように後行田延材１４の先端部１４αが重ね当板
装置１１に沿って上昇し、該装置１１のストッパ１１α
に当接すると、ピンチロール３は停止され、後行圧延材
クランプ装置として作用する。それから重ね当板装置１
１が斜め上方に引抜かれると、（ニ）に示すように先行
圧延材１３の後端部１３ａ、上に後行圧延材１４の先端
部１４αが重ね合される。Next, as shown in (b), the trailing rolled material 14 is fed by the pinch rolls 3, but before that, the stacking plate device 11
is coming down diagonally and waiting for the trailing rolled material 14. (
As shown in c), the tip end 14α of the trailing rolled material 14 rises along the stacking plate device 11, and the stopper 11α of the device 11
When it comes into contact with , the pinch roll 3 is stopped and acts as a trailing rolling material clamping device. Then, the stacking plate device 1
1 is pulled out obliquely upward, the tip 14α of the trailing rolled material 14 is superimposed on the rear end 13a of the preceding rolled material 13, as shown in (d).

次に、この重ね合された両端部が打抜かれるのであるが
、下側刃物台７は、第４図に示すように、蟻みぞと蟻は
ぞとを交互に有するような形状の刃を有している。上側
刃物台４もこれと補完的な形状の刃を有しているが、こ
れは、第５図に示すように、打抜かれたのちの後端部１
３ａ、および先端部１．４　ａのそれぞれに、先端の開
口幅Ａが後端の開口幅Ｂよりも狭くなった形状の切欠き
部Ｊ５と、該切欠き部１５に対して補完的に嵌まり合う
形状をなす突出部１６とを形成するためである。下側刃
物台７は固定であり、下側ホルダー６は下側刃物台７と
補完的な形状をしており且つ上下動可能である。また、
上側刃物台４およびこれと補完的な形状をなす上側ホル
ダー５は、それぞれに上下動可能である。Next, the overlapped ends are punched out, and the lower tool rest 7 has a blade shaped like it has alternating dovetail grooves and dovetail grooves, as shown in Fig. 4. have. The upper tool rest 4 also has a blade with a complementary shape, but this is the same as the rear end 1 after being punched out, as shown in FIG.
3a and the distal end 1.4a, each has a notch J5 having a shape in which the opening width A of the distal end is narrower than the opening width B of the rear end, and a notch J5 that is complementary to the notch 15. This is to form a protrusion 16 having a shape that fits together. The lower tool rest 7 is fixed, and the lower holder 6 has a complementary shape to the lower tool rest 7 and is movable up and down. Also,
The upper tool rest 4 and the upper holder 5, which has a complementary shape, are each movable up and down.

上側刃物台４および上側ホルダー５を下降させることに
より、重ね合された後端部１３αおよび先端部１４ｃＬ
のそれぞれは、第６図に示すように刃物台の刃の形状に
打抜かれる。このとき、先端部１４αは上側刃物台４に
よって下側ホルダー６とともに下方に押上げられ、固定
の下側刃物台７上に残る後端部１３αよりも下方に位置
することになる。By lowering the upper tool post 4 and the upper holder 5, the overlapping rear end portion 13α and tip portion 14cL
Each is punched out in the shape of the blade of the tool post, as shown in FIG. At this time, the tip portion 14α is pushed downward together with the lower holder 6 by the upper tool rest 4, and is located below the rear end portion 13α remaining on the fixed lower tool rest 7.

次に、切取られた端材（図示せず）を第１図に　　　　
　　１示す上下のプッシャー（端材除去装置）１７．１
８で取除いたのち、下側ホルダー６を下側刃物台７と同
じ高さにまで持上げることにより、先端部１４ｃＬは後
端部１３αと同一平面内に位置するように押戻される。Next, the cut off scraps (not shown) are shown in Figure 1.
1 Upper and lower pushers (end material removal device) shown 17.1
After removing it in step 8, by lifting the lower holder 6 to the same height as the lower tool rest 7, the leading end 14cL is pushed back to be located in the same plane as the rear end 13α.

このときの状態で、先行圧延材１３と後行圧延材１４と
は第７図に示すように連結される。この連結状態から明
らかなように、両圧延材は長手方向の引張力によって外
れてしまう心配はない。しかしながら、連結部の両側の
部分１９は拘束されていないので、ずれやすくなってい
る。そこで、両側の側縁係合部２０を第１図に示す溶接
装置８によって溶接する。溶接装置８は、垂直軸まわり
を揺動可能であり、打抜き作業および押戻し作業のとき
は邪魔にならぬよう外方に逃げているが、溶接時には側
縁係合部２０に接近して短時間のうちに溶接作業を行な
う。この溶接により、連結は完全なものとなる。In this state, the preceding rolled material 13 and the subsequent rolled material 14 are connected as shown in FIG. 7. As is clear from this connected state, there is no fear that the two rolled materials will come apart due to tension in the longitudinal direction. However, since the portions 19 on both sides of the connecting portion are not restrained, they are likely to shift. Therefore, the side edge engaging portions 20 on both sides are welded using a welding device 8 shown in FIG. The welding device 8 is movable around a vertical axis, and escapes outward so as not to get in the way during punching and pushing back operations, but approaches the side edge engaging portion 20 during welding and shortens the welding device 8. Perform welding work on time. This welding completes the connection.

さらに他の係合部分、例えば第７図に符号２１で示す箇
所を溶接してもよい。このときには、溶接装置８と同様
な構成の溶接装置９（第１図を参照）を用いればよい。Furthermore, other engaging portions, for example, the portion indicated by reference numeral 21 in FIG. 7, may be welded. At this time, a welding device 9 (see FIG. 1) having the same configuration as the welding device 8 may be used.

しかしながら、この部分の溶接は必須ではない。However, welding of this part is not essential.

溶接が完了すると、先行圧延材１３および後行圧延材１
４のクランプが解除され、両圧延材は連結された状態で
圧延されてゆき、台車１および間引きローラテーブル１
０はそれぞれ元の位置に戻る。連結作業に要する時間は
約５秒である。When welding is completed, the preceding rolled material 13 and the succeeding rolled material 1
4 is released, both rolled materials are rolled in a connected state, and the carriage 1 and the thinning roller table 1
Each 0 returns to its original position. The time required for the connection operation is approximately 5 seconds.

第８図は第２の発明の一実施例の概略斜示図であり、第
１図のものと対応する部材には同口参照符号を付しであ
る。この熱間圧延材連結装置においては、第１図におけ
る移動可能な台車１の代わりに、固定された架台２２上
に各部材が設けられている。また、第１図におけるよう
に下流側のローラテーブルを間引きローラテーブル１０
としない。さらに、第１図における先行圧延材クランプ
装置２のかわりにクランプ作用を行なうことのできるピ
ンチロール２３と次のピンチロール２４との間にルーバ
ー装置２５が設けられている。ルーバー装置２５によっ
て先行圧延材１３をルーピングすることにより、先行圧
延材１３は下流側での圧延を中断されることなく、その
後端部１３αを下側ホルダー６および下側刃物台７の上
に一定時間静止させておくことができる。このときピン
チロール２３は停止されて先行圧延材クランプ装置とし
て作用する。その後、後行田延材１４の先端部１４ａを
先行圧延材１３の後端部１３α上に重ね合せ（このとき
第１図に示す重ね当板装置１１を利用してもよい〕、前
述したように打抜き、押戻し、および溶接がなされる。FIG. 8 is a schematic perspective view of an embodiment of the second invention, and parts corresponding to those in FIG. 1 are given the same reference numerals. In this hot rolled material connecting device, each member is provided on a fixed frame 22 instead of the movable truck 1 in FIG. In addition, as shown in FIG. 1, the roller table on the downstream side is thinned out and
I don't. Furthermore, instead of the preceding rolled material clamping device 2 in FIG. 1, a louver device 25 is provided between a pinch roll 23 capable of performing a clamping action and a next pinch roll 24. By looping the pre-rolled material 13 using the louver device 25, the pre-rolled material 13 maintains its rear end 13α above the lower holder 6 and the lower tool rest 7 without interrupting rolling on the downstream side. You can make time stand still. At this time, the pinch rolls 23 are stopped and act as a pre-rolled material clamping device. Thereafter, the tip end 14a of the trailing rolled material 14 is superimposed on the rear end 13α of the preceding rolled material 13 (at this time, the stacking plate device 11 shown in FIG. 1 may be used), as described above. Stamping, pressing back, and welding are done.

第１図の場合と異なり、これらの連結作業は先行圧延材
１３の後端部１３（Ｚと後行圧延材１４の先端部１４ａ
とを固定架台２２上で静止させた状態で行なうので１、
連結作業中の両川延材の圧延ピッチ調整の必要がなく、
また、設備全体も大きくならずにすむ。Unlike the case shown in FIG.
Since this is done while stationary on the fixed pedestal 22, 1.
There is no need to adjust the rolling pitch of Ryokawa rolled materials during connection work.
Moreover, the entire equipment does not need to be large.

なお、圧延材端部に形成される切欠部１５および突出部
１６の形状は図示したものに限定されず、多くの変形例
を採用することができる。Note that the shapes of the notch 15 and the protrusion 16 formed at the end of the rolled material are not limited to those shown, and many modifications can be adopted.

（７）発明の効果 本願の第１の発明および第２の発明によれば、従来の突
合せ溶接する装置に比（へ）、大きな引張力に充分耐え
る“ことのできる連結部を短時間で形成することができ
る。また、従来の重ね合せ圧着装置を用いた場合と異な
り、連結部には圧延材の重なりがないため、圧延後に付
加的な後処理を必要としない。(7) Effects of the Invention According to the first and second inventions of the present application, a connection part that can sufficiently withstand a large tensile force can be formed in a short time compared to conventional butt welding devices. Furthermore, unlike the case where a conventional overlapping and crimping device is used, there is no overlap of the rolled materials at the connecting portion, so no additional post-processing is required after rolling.

また、本願の第２の発明は第１の発明と比べ、使用方法
が容易であり、設備全体が小さくてすむという点で有利
である。Furthermore, the second invention of the present application is advantageous over the first invention in that it is easier to use and the entire equipment can be smaller.

【図面の簡単な説明】[Brief explanation of drawings]

第１図は本願の第１の発明の一実施例の概略斜示図。第
２図は第１の発明における台車と間引きローラテーブル
との関係を示す概略平面図。第３図の（イ）ないしく二
）は先行圧延材の後端部と後行田延材の先端部とを重ね
合せる作業を順を追って説明するための概略側面図。第
４図は下側ホルダーおよび下側刃物台を示す平面図。第
５図は打抜かれた先行および後行圧延材の後端部および
先端部の形状を示す断片平面図。第６図は打抜かれた直
後の先行および後行圧延材の位置関係を示す概略斜示図
。第７図は連結後の先行および後行圧延材を示す概略斜
示図。第８図は本願の第２の発明の一実施例の概略斜示
図。 ■・・・台　車 ２・・・先行圧延材クランプ装置 ３・・・後行圧延材クランプ装置（ピンチロール）４・
・・鋼板打抜き装置（上側刃物台）５・・・上側ホルダ
ー ６・・・下側ホルダーおよび押戻し装置７・・・鋼板打
抜き装置（下側刃物台）８．９・・・溶接装置 １０・・・間引きローラテーブル １２・・・仕上圧延機　　　１３・・・先行圧延材１３
α・・・後端部　　　　１４・・・後行圧延材１４α・
・・先端部　　　　１５・・・切欠き部１６・・・突出
部 １７．１８・・・鑞材除去装置（プッシャー）２２・・
・架　台 ２：う・・・後行圧延材クランプ装置（ピンチロール）
２５・・・ルーパー装置 第２図 −〜２FIG. 1 is a schematic perspective view of an embodiment of the first invention of the present application. FIG. 2 is a schematic plan view showing the relationship between the cart and the thinning roller table in the first invention. (A) to (2) of FIG. 3 are schematic side views for sequentially explaining the operation of overlapping the rear end portion of the preceding rolled material and the front end portion of the trailing rolled material. FIG. 4 is a plan view showing the lower holder and the lower tool rest. FIG. 5 is a fragmentary plan view showing the shape of the rear end and tip of the punched leading and trailing rolled materials. FIG. 6 is a schematic perspective view showing the positional relationship between the leading and trailing rolled materials immediately after being punched. FIG. 7 is a schematic perspective view showing the leading and trailing rolled materials after connection. FIG. 8 is a schematic perspective view of an embodiment of the second invention of the present application. ■... Car 2... Leading rolled material clamping device 3... Trailing rolled material clamping device (pinch roll) 4.
... Steel plate punching device (upper tool post) 5 ... Upper holder 6 ... Lower holder and push-back device 7 ... Steel plate punching device (lower tool post) 8.9 ... Welding device 10. ... Thinning roller table 12 ... Finishing rolling machine 13 ... Pre-rolling material 13
α...Rear end part 14... Trailing rolled material 14α・
...Tip portion 15...Notch portion 16...Protrusion portion 17.18...Brazing material removal device (pusher) 22...
・Frame 2: U... Trailing rolled material clamping device (pinch roll)
25... Looper device Fig. 2--2

Claims (2)

【特許請求の範囲】[Claims] （１）熱間圧延ラインの粗圧延機と仕上圧延機との間に
設けられ、圧延材の長手方向に進退可能な台車と、該台
車上の前方に設けられた先行圧延材クランプ装置と、該
台車上の後方に設けられた後行圧延材クランプ装置と、
該台車上のほぼ中央に設けられ、先行圧延材の後端部と
後行圧延材の先端部とを重ね合せた部分を打抜くことに
より、前記後端部および前記先端部のそれぞれに先端の
開口幅が後端の開口幅よりも狭くなつた形状の切欠き部
と該切欠き部に対して補完的に嵌まり合５形状をなす突
出部とを同時に形成可能な刃を備えた鋼板打抜き装置と
、該鋼板打抜き装置に隣接して前記台車上に設けられ、
打抜き後の鋼板の端材を除去するための端材除去装置と
、前記台車上のほぼ中央に設けられ、打抜き後の前記後
端部および前記先端部を同一平面内に押戻して前記切欠
き部と前記突出部とを嵌め合せるための押戻し装置と、
前記鋼板打抜き装置および前記押戻し装置に隣接して前
記台車上に設けられ、前記切欠き部と前記突出部とが嵌
め合されたのちに前記後端部と前記先端部との連結部の
少なくとも一部を溶接するための溶接装置と、前記台車
と仕上圧延機との間に設けられ、圧延材連結作業時にラ
インから側方へと外れるように移動可能な間引きローラ
テーブルとを備えてなる熱間圧延材連結装置。(1) A cart provided between a rough rolling mill and a finishing rolling mill of a hot rolling line and capable of moving back and forth in the longitudinal direction of the rolled material, and a preceding rolled material clamping device provided in front of the cart; a trailing rolled material clamping device provided on the rear of the trolley;
By punching out a portion provided approximately at the center of the cart, where the rear end of the preceding rolled material and the leading end of the trailing rolled material are overlapped, a tip end is provided at each of the trailing end and the leading end. Steel plate punching equipped with a blade capable of simultaneously forming a notch portion whose opening width is narrower than the opening width at the rear end and a protrusion portion which fits complementary to the notch portion and forms a five-shape shape. a device, and provided on the trolley adjacent to the steel sheet punching device,
a scrap removal device for removing scraps of the steel plate after punching; and a scrap removal device provided approximately in the center on the cart, the scrap removal device being provided approximately at the center of the cart and pushing back the punched rear end and the tip end into the same plane to remove the notch. a push-back device for fitting the part and the protruding part;
Provided on the truck adjacent to the steel plate punching device and the push-back device, at least a connecting portion between the rear end portion and the tip portion after the notch portion and the protruding portion are fitted together; A heating device comprising a welding device for welding a part, and a thinning roller table that is provided between the cart and the finishing rolling mill and is movable so as to be moved sideways from the line during the work of connecting rolled materials. Inter-rolled material connecting device. （２）熱間圧延ラインの粗圧延機と仕上圧延機との間に
設けられた固定の架台と、該架台上の前方に設けられた
先行圧延材クランプ装置と、該架台上の後方に設けられ
た後行圧延材クランプ装置と、該架台上のほぼ中央に設
けられ、先行圧延材の後端部と後行圧延材の先端部とを
重ね合せた部分を打抜くことにより、前記後端部および
前記先端部のそれぞれに先端の開口幅が後端の開口幅よ
りも狭くなつた形状の切欠き部と該切欠き部に対して補
完的に嵌まり合う形状をなす突出部とを同時に形成可能
な刃を備えた鋼板打抜き装置と、該鋼板打抜き装置に隣
接して前記架台上に設けられ、打抜き後の鋼板の端材を
除去するための端材除去装置と、前記架台上のほぼ中央
に設けられ、打抜き後の前記後端部および前記先端部を
同一平面内に押戻して前記切欠き部と前記突出部とを嵌
め合せるための押圧し装置と、前記鋼板打抜き装置およ
び前記押圧し装置に隣接して前記架台上に設けられ、前
記切欠き部と前記突出部とが嵌め合されたのちに前記後
端部と前記先端部との連結部の少なくとも一部を溶接す
るための溶接装置と、前記架台と仕上圧延機との間に設
けられ、圧延材連結作業時に先行圧延材を一時滞留させ
るためのルーバー装置とを備えてなる熱間圧延材連結装
置。(2) A fixed pedestal installed between a rough rolling mill and a finishing rolling mill of a hot rolling line, a pre-rolled material clamping device installed in front of the pedestal, and a device installed behind the pedestal. The trailing rolled material clamping device is provided approximately at the center of the pedestal, and the trailing rolled material clamping device is provided approximately at the center of the frame, and the rear end of the trailing rolled material is clamped by punching out a portion where the trailing end of the leading rolled material and the leading end of the trailing rolled material are overlapped. and a notch portion having a shape in which the opening width at the tip end is narrower than the opening width at the rear end, and a protrusion portion having a shape that complementarily fits into the notch portion, respectively, at the same time. a steel plate punching device equipped with a blade that can be formed; a scrap removal device provided on the pedestal adjacent to the steel plate punching device for removing scraps of the steel plate after punching; a pressing device provided at the center for pushing back the rear end portion and the leading end portion after punching into the same plane to fit the notch portion and the protruding portion; the steel plate punching device and the pressing device; provided on the stand adjacent to the device for welding at least a portion of the connecting portion between the rear end portion and the tip portion after the notch portion and the protrusion portion are fitted together; A hot rolled material connecting device comprising: a welding device; and a louver device provided between the pedestal and a finishing rolling mill for temporarily retaining a preceding rolled material during a work of connecting rolled materials.