JPH01113181A - Continuous manufacture of reinforced net changing longitudinal reinforcement arrangement and its device - Google Patents

Continuous manufacture of reinforced net changing longitudinal reinforcement arrangement and its device

Info

Publication number
JPH01113181A
JPH01113181A JP26825587A JP26825587A JPH01113181A JP H01113181 A JPH01113181 A JP H01113181A JP 26825587 A JP26825587 A JP 26825587A JP 26825587 A JP26825587 A JP 26825587A JP H01113181 A JPH01113181 A JP H01113181A
Authority
JP
Japan
Prior art keywords
main
reinforcement
reinforcements
product
sub
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.)
Granted
Application number
JP26825587A
Other languages
Japanese (ja)
Other versions
JPH0351509B2 (en
Inventor
Toshiyuki Wakabayashi
利幸 若林
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsuba Manufacturing Co Ltd
Original Assignee
Mitsuba Manufacturing Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Mitsuba Manufacturing Co Ltd filed Critical Mitsuba Manufacturing Co Ltd
Priority to JP26825587A priority Critical patent/JPH01113181A/en
Publication of JPH01113181A publication Critical patent/JPH01113181A/en
Publication of JPH0351509B2 publication Critical patent/JPH0351509B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Wire Processing (AREA)

Abstract

PURPOSE:To continuously supply reinforcement coils till these come to ends by storing main reinforcements pulled out from the reinforcement coils in a main reinforcement supply path for longitudinal reinforcements of whole arrangements in the direction of a wire-net welding machine and enabling to use products of various longitudinal reinforcement arrangements selectively properly without lateral movements of the main reinforcements. CONSTITUTION:The main reinforcements W pulled out from each coil 2 of a coil storage space via detectors 2a are arranged in parallel at a guide part 7a of the top of a hydraulic unit 7. The bending habits of the main reinforcements W are straightened by a straightening machine 8 provided to the supply path 3 and held by fixed clamps 49 of a main reinforcement feed mechanism 4 and stand by and pulled out from the coil 2 by movable clamps 4b and fed intermittently to the welding machine 1. Auxiliary reinforcements W pulled out from reinforcement coils for the auxiliary reinforcements are led to an auxiliary reinforcement feeder 9 and cut to necessary dimensions and dropped orthogonally on the longitudinal reinforcements W on a lower electrode of the welding machine 1 and intersections are subjected to resistance welding. The main reinforcements joined to the auxiliary reinforcements W advance onto a conveyor 10 and a boundary between the preceding product and the succeeding product is separated before and behind by an entire width shearing device 6.

Description

【発明の詳細な説明】 〈産業上の利用分野) この発明は網状鉄筋の連続製造法とその装置に関する。[Detailed description of the invention] (Industrial application field) The present invention relates to a continuous manufacturing method and apparatus for reticular reinforcing bars.

〈従来の技術〉 例えば工場でコンクリート板を量産する場合、型枠に入
れる縦横鉄筋も量産品を使う。その量産品である網状鉄
筋は金網溶接機て所要寸法の縦筋と横筋とを抵抗溶接し
て作るのが一般である。
<Conventional technology> For example, when mass-producing concrete plates in a factory, mass-produced vertical and horizontal reinforcing bars are also used to insert them into the formwork. The mass-produced reticulated reinforcing bars are generally made by resistance welding longitudinal and transverse bars of required dimensions using a wire mesh welding machine.

すなわち金網溶接機の水平に整列した上下電極多数の間
へ、所要寸法の縦筋を所要間隔を保って所要本数並進さ
せ、その間欠移動の停止時間中に所要寸法の横筋を一本
ずつ一斉溶接する!バを繰返して、次々と横筋を所要数
だけ溶接する。
In other words, between a large number of horizontally aligned upper and lower electrodes of the wire mesh welding machine, the required number of vertical bars of the required size are translated at the required intervals, and during the pause period of intermittent movement, the horizontal bars of the required size are simultaneously welded one by one. do! Repeat the process to weld the required number of horizontal reinforcements one after another.

本出願人は同一寸法の網状鉄筋を連続させて作った後、
個々に分断する技術、同一縦筋に異なるピッチて横筋を
溶接する技術、その他1.網状鉄筋関連技術を数多く開
発している。
After making continuous reticulated reinforcing bars of the same size, the applicant
Techniques for individually dividing, welding horizontal bars at different pitches to the same vertical bar, etc. 1. We have developed a number of technologies related to reticulated reinforcing bars.

〈発明か解決しようとする問題点〉 金網溶接機による網状鉄筋の生産能率を上げるには、縦
筋になる長い主筋に、横筋となる短い副筋を所要の不等
ピッチて直交状に溶接し、製品境界部の両側副筋は特に
小さなピッチて溶接した後、その境界部て分断すればよ
い事は明らかである。そのため上述の分断技術、ピッチ
可変技術を開発すみであるか、それは並進する主筋の配
置が変らない製品に限られていた。
<Problem to be solved by the invention> In order to increase the production efficiency of mesh reinforcing bars using a wire mesh welding machine, short sub-reinforcements, which become horizontal reinforcements, are welded orthogonally to long main reinforcements, which become vertical reinforcements, at a required uneven pitch. It is clear that the sub-reinforcements on both sides of the product boundary can be welded at a particularly small pitch and then separated at the boundary. For this reason, the above-mentioned dividing technology and pitch variable technology have been developed only for products in which the arrangement of the translating main bars does not change.

今回の発明は、主筋の配置、つまり完成時、縦筋の相互
間隔か異なる製品を連続して製造する方法、装置の開発
を目的とする。
The purpose of the present invention is to develop a method and apparatus for continuously manufacturing products with different main reinforcement arrangements, that is, the mutual spacing of vertical reinforcements upon completion.

〈問題点を解決するための手段〉 この発明の網状鉄筋の連続製造法は、金網溶接機へ主筋
を数本並進させ、これに直交状に副筋を一本ずつ抵抗溶
接する前後端同形網状鉄筋の製造法において、金網溶接
機の各種寸法製品用主筋供給路それぞれに、鉄筋コイル
から引出してきて納めた主筋の先端を、溶接位置より定
距離手前の各個剪断位置で横並びに切り揃えて待機させ
、所要の主筋だけ一斉間欠送給して副筋を次々と溶接し
、製品後端より上記定距離だけ前方に位置する副筋を溶
接するため主筋を停めている間に、上記先行製品て使用
したか後続製品ては使用しない主筋だけ、1:記各個剪
断位置で後尾を切断し、その後部な送給機構からはずし
、同時に先行製品て使用せず後続製品で使用する待機中
の主筋を送給機構にくわえさせ、先後両製品の主筋を進
め、両製品の境界をはさむ両側副筋を溶接した後、先後
両製品の共通主筋を製品の境界で剪断することを特徴と
する。
<Means for Solving the Problems> The continuous manufacturing method of reticulated reinforcing bars of the present invention involves translating several main reinforcing bars into a wire mesh welding machine, and resistance-welding sub-reinforcing bars one by one perpendicularly thereto to form a mesh with the same shape at the front and rear ends. In the method of manufacturing reinforcing bars, the tips of the main bars pulled out from the reinforcing bar coil and placed in each of the main bar supply paths for products of various sizes of a wire mesh welding machine are cut side by side and aligned at each shearing position a certain distance before the welding position. Then, only the required main reinforcements are fed intermittently to weld the sub-reinforcements one after another, and while the main reinforcements are stopped to weld the sub-reinforcements located in front of the rear end of the product by the specified distance, Cut only the main reinforcement that has been used or will not be used in the subsequent product. 1: Cut the trailing tail at each shearing position and remove it from the rear feeding mechanism, and at the same time remove the main reinforcement that is not used in the preceding product but is waiting to be used in the subsequent product. The main reinforcement of both the front and rear products is advanced by the feeding mechanism, and after welding the sub-reinforcements on both sides sandwiching the boundary between the two products, the common main reinforcement of both the front and rear products is sheared at the boundary of the products.

またその装置は、金網溶接機へ主筋を数本並進させ、こ
れに直交状に副筋を一本ずつ抵抗溶接する前後端同形、
網状鉄筋の製造装置において、製造する各種寸法製品す
へてのための主筋供給路と、上記各供給路へ、それぞれ
鉄筋コイルから引出してきた主筋を待機させ、またそれ
を各個にくわえて金網溶接機へ間欠送給する主筋送給機
構と、上記供給路上、溶接位置より定距離手前で各主筋
を切る位置に設けた各個剪断装置と、製品後端から上記
定距離だけ前に位置する副筋の溶接停止時間中に、先行
製品にあって後続製品にない主筋があるとの指令を受け
たら、その主筋の後尾切断と送給停止を、それぞれ上記
各個剪断装置、主筋送給機構に命し、先行製品て使用し
ないが後続製品ては使用する主筋があるとの指令を受け
たら、その位置の待機主筋をくわえるよう上記主筋送給
機構に命ずる制御装置と、先行、後続両製品の境界をは
さむ両側副筋が溶接機から出た所で、両側副筋間で先後
の製品の共通主筋を剪断する全幅剪断装置と、を備えた
ことを特徴とする。
In addition, the device has the same shape at the front and rear ends, in which several main reinforcements are translated into a wire mesh welding machine, and sub-reinforcements are resistance welded one by one at right angles to the main reinforcements.
In a reticulated reinforcing bar manufacturing device, the main reinforcing bars pulled out from the reinforcing bar coils are placed on standby in the main reinforcing bars for the products of various sizes to be manufactured, and the main bars pulled out from the reinforcing bar coils are placed in each of the above supply channels, and the main reinforcing bars are placed in each piece and wire mesh welded. A main reinforcement feeding mechanism that intermittently feeds the main reinforcement to the machine, an individual shearing device installed on the supply path at a position to cut each main reinforcement at a certain distance before the welding position, and a sub-reinforcement located at the specified distance in front of the rear end of the product. During the welding stop time, if a command is received that there is a main reinforcement in the preceding product that is not in the succeeding product, the respective shearing devices and main reinforcement feeding mechanism are ordered to cut the trailing part of that main reinforcement and stop feeding. When a command is received that there is a main reinforcement that will not be used in the preceding product but will be used in the subsequent product, the control device will instruct the main reinforcement feeding mechanism to pick up the standby main reinforcement at that position, and the boundary between the preceding and subsequent products. The present invention is characterized by being equipped with a full-width shearing device for shearing the common main reinforcing bars of the previous and subsequent products between the sub-reinforcements on both sides at the place where the sandwiched sub-reinforcements come out of the welding machine.

く作 用〉 この発明の製品である別状鉄筋はコンクリート板用を主
な用途とするものであるか、その場合、規格上、縦筋の
配置は最も密なもの\どれかを無くして疎にすることか
許されるだけである点を、この発明は活用した。すなわ
ち、金網溶接機の客種寸法製品用主筋供給路それぞれに
、鉄筋コイルから引出してきた主筋を待機させる事によ
り、寸法変化のため主筋を横移動させることなく、各待
機位置から直進させられるようにした。コイ゛ルから引
出しているから、同一配置の縦筋数十本分を連続送給後
、直ちに他のコイルに切換えて送給を続けられる。
Function> Is the separate reinforcing bar that is the product of this invention mainly used for concrete plates? In that case, according to the standard, the arrangement of vertical bars should be the densest one or sparse by eliminating some. This invention takes advantage of the fact that you are only allowed to do it. In other words, by having the main reinforcing bars pulled out from the reinforcing steel coil stand by in each of the main reinforcing bars for customer-sized products of the wire mesh welding machine, the main reinforcing bars can be moved straight from each standby position without having to move laterally due to dimensional changes. I made it. Since it is pulled out from the coil, after continuously feeding several dozen vertical bars in the same arrangement, it is possible to immediately switch to another coil and continue feeding.

この発明は各主筋供給路に、主筋をくわえたり離したり
する送給機構を設けたのは当然として、さらに各個剪断
装置を加え、溶接位置より定距離手前の所で各主筋先端
を切り揃えて待機させるほか、後述の主演後尾切断用と
しても使う。
In this invention, each main reinforcement supply path is naturally equipped with a feeding mechanism for gripping and releasing the main reinforcement, and a shearing device is also added to each main reinforcement, and the tips of each main reinforcement are trimmed at a certain distance before the welding position. In addition to being kept on standby, it is also used for cutting the leading man's tail, which will be described later.

すなわち先行製品の副筋溶接か進んて、製品後端より上
記定距離だけ前方に位置する副筋を溶接するため主筋を
停めている間に、後続製品に不要な主筋の後尾切断を上
記供給路上の各個剪断装置て簡単に行なえるだけてなく
、その先行製品の主筋後尾か待機中の残りの全部の主筋
先端に揃えられるのである。
In other words, while welding the sub-reinforcement of the preceding product, and while the main reinforcing bar is stopped in order to weld the sub-reinforcement located the above-mentioned fixed distance ahead of the rear end of the product, the trailing cut of the main bar that is unnecessary for the succeeding product is cut on the supply path. Not only can each individual shearing device be easily operated, but it can also be aligned with the tail of the main bar of its predecessor or the tip of all the remaining main bars in standby.

上記後尾切断と同時に、先行製品に使用されず、後続製
品ては必要な、各個剪断装置の剪断位置に待機中の主筋
を送給機構てくわえ、以後の間欠送給により先行製品の
主筋後尾と後続製品の主筋先端は横一線に並んで進むこ
とになる。尚、先行製品と後続製品に共通に使用される
共通主筋は各個剪断装置で切断されることなく連らなっ
たま\進む。
At the same time as the above-mentioned trail cutting, a feeding mechanism is added to the waiting main reinforcement at the shearing position of each individual shearing device, which is not used in the preceding product but is necessary for the succeeding product, and by intermittent feeding thereafter, the main reinforcement is connected to the trailing reinforcement of the preceding product. The tips of the main bars of subsequent products will advance in a horizontal line. Incidentally, the common main reinforcing bars used in both the preceding product and the succeeding product are not cut by each individual shearing device and proceed as they are connected.

これにより上記先後両製品境界をはさむ両側副筋を溶接
し、それらか溶接機から出て来た所で。
This welds the sub-reinforcements on both sides that sandwich the boundary between the front and rear products, where they come out of the welding machine.

両側副筋間て各主筋を、製品境界線沿いに全幅剪断装置
で剪断すると、先行製品と後続製品は切り離され、先後
両主筋端の副筋からの突出量はすべて等しくなる。等し
くても規格寸法より長くなるのを防ぐには、両切り刃に
より余分な長さを切捨てればよい。無論、関係寸法を適
切にして、先行製品と後続製品に共通な共通主筋だけを
製品境界線で全幅剪断装置で切断するだけでもよい。
When each main reinforcement is sheared along the product boundary line with a full-width shearing device between the sub-reinforcements on both sides, the preceding product and the following product are separated, and the protrusion amounts from the sub-reinforcement at the ends of both the front and rear main reinforcements are all equal. In order to prevent the length from becoming longer than the standard size even if the length is equal, the excess length can be cut off using both cutting blades. Of course, it is also possible to make the relevant dimensions appropriate and to simply cut only the common main bars common to the preceding and succeeding products at the product boundary line with a full-width shearing device.

〈実 施 例〉 第1J2図はこの発明の一実施例を示すもので、金網溶
接機を1、鉄筋コイルを2)主筋供給路を3、主筋送給
機構を4、上記供給路3上の主筋を各個剪断位置で切る
各個剪断装置を5、先行後続両製品の境界で両製品を分
断する全幅剪断装置を6、主筋、副筋はそれぞれW、w
としている。
<Embodiment> Fig. 1J2 shows an embodiment of the present invention, in which a wire mesh welding machine is 1, a reinforcing steel coil is 2) a main reinforcement supply path is 3, a main reinforcement feeding mechanism is 4, and a wire mesh welding machine is installed on the above-mentioned supply path 3. 5 is the individual shearing device that cuts the main reinforcement at each shearing position, 6 is the full width shearing device that separates both products at the boundary between the preceding and following products, and the main and secondary reinforcements are W and w, respectively.
It is said that

図の右端のコイル置場の各コイル2から検出装置2aを
経て引出された主筋Wは、油圧ユニット7上面の案内部
7aで平行に揃えられ、供給路3に設けられた矯正a8
により曲り癖を直され、主筋送給機構4の定置クランプ
4aによりくわえられて待機し、移動クランプ4bによ
りコイル2から引出され、溶接mlの方へ間欠送給され
る。
The main reinforcements W pulled out from each coil 2 in the coil storage area at the right end of the figure via the detection device 2a are aligned parallel to each other by the guide portion 7a on the upper surface of the hydraulic unit 7, and are aligned in parallel with each other by the correction a8 provided in the supply path 3.
The bending habit is corrected by the main reinforcement feed mechanism 4, the fixed clamp 4a of the main reinforcement feeding mechanism 4 holds it in its mouth, and it waits, and it is pulled out from the coil 2 by the movable clamp 4b and is intermittently fed toward the weld ml.

溶接v11には多数の上下溶接電極対か左右間隔調整自
在に並列し、またこの実施例では副筋供給装置9を付設
している。図示しない副筋用鉄筋コイルから引出された
副筋Wはこの副筋供給装置9へ導かれて所要寸法に切ら
れ、溶接機lの下部電極りの縦筋Wの上へ直交状に落し
込まれ、交叉部を抵抗溶接される。
In the weld v11, a large number of pairs of upper and lower welding electrodes are arranged in parallel so that the left and right intervals can be freely adjusted, and in this embodiment, an auxiliary reinforcement supply device 9 is attached. The sub-reinforcement W pulled out from the sub-rebar reinforcing steel coil (not shown) is guided to the sub-reinforcement supply device 9, cut into required dimensions, and dropped orthogonally onto the vertical reinforcement W of the lower electrode of the welding machine l. In rare cases, the intersections are resistance welded.

溶接により副筋Wをつけた主筋Wはコンベア10上へ進
み、先行製品と後続製品との境界部か全幅剪断装置6の
上下刃間て停っな時、前後に切離される。その後、先行
製品はコンヘアIOによって製品収納場11へ行き、後
続製品は主筋送給機構4による間欠送りで、コンベア1
0上へ進むことを緑返すのである。
The main reinforcing bars W with the sub-reinforcements W attached by welding advance onto the conveyor 10 and are cut back and forth when they stop at the boundary between the preceding product and the succeeding product or between the upper and lower blades of the full-width shearing device 6. After that, the preceding product goes to the product storage area 11 by the conveyor IO, and the succeeding product is sent to the conveyor 1 by intermittent feeding by the main reinforcement feeding mechanism 4.
It returns green to indicate going up 0.

次にこの発明の特徴をなす部分について詳細に説明する
Next, the features of this invention will be explained in detail.

第3図に例示した製品は、量産する軽量コンクリート板
の型枠に入れる。窮状鉄筋である。七本の主筋Wに七本
の副筋Wを直交状に溶接しているが、副筋Wの相互間隔
(以下、ピッチと称す)は主筋の両端部て狭く、中央部
ては広く、前後端同形である。副筋の端部てのピッチは
p、端部副筋Wからの主筋突出量はqである。一般に、
他の寸法は変っても、p、qの寸法は変わらない場合が
多い。
The product illustrated in Figure 3 is placed in a formwork for mass-produced lightweight concrete plates. It is a difficult situation. Seven sub-reinforcements W are welded orthogonally to the seven main reinforcing bars W, and the mutual spacing (hereinafter referred to as pitch) of the sub-reinforcements W is narrow at both ends of the main reinforcing bars, wide at the center, and wide at the front and back. The end is isomorphic. The pitch at the end of the sub-reinforcement is p, and the amount of protrusion of the main reinforcement from the end sub-reinforcement W is q. in general,
Even if other dimensions change, the dimensions p and q often remain the same.

第4図は説明玉、異る製品A、B、Cを一枚ずつ連続し
て作る場合を画いたもので、製品AとB、製品BとCに
共通する共通主筋Wcは境界部Xてまた分断していない
状態て示している。
Figure 4 shows the case where different products A, B, and C are successively manufactured one by one.The common main reinforcement Wc common to products A and B, and products B and C is located at the boundary It is also shown undivided.

製品A、Bの共通主筋Wcは両性側のものだけて、製品
Aの中側の三本の主筋りは製品Bては用いず、その代り
に製品Aては使用しない二本の主筋Wbを製品Bては使
用する。このA製品のあとにB製品を連続製造すること
は従来不可能とは言えないまでも、A製品の中側の三本
の主筋W8中、−木を除き、他の二本を幅方向にずらし
てWbの位置にしなければならないため極めて面倒てあ
ったか、この発明によれば後述のように簡単に行える。
The common main reinforcement Wc of products A and B is only on both sides, the three main reinforcements on the middle side of product A are not used in product B, and instead, the two main reinforcements Wb that are not used in product A are used. Product B is used. Although it is not impossible to continuously manufacture product B after product A, it is possible to It was extremely troublesome to have to shift the position to position Wb, but according to the present invention, this can be easily done as described later.

製品BのあとにCを連続製造することも同様である。The same applies to the continuous production of product C after product B.

第5図によってこの発明の詳細な説明すると、4aは送
給機構4の定置クランプ、同じ<4bか第8図の移動ク
ランプ、5は第9図の各個剪断装置、1aは抵抗溶接機
の上下電極かある溶接位置、6は第10図の全幅剪断装
置を示す。各個剪断装置5の剪断位置は溶接位置1aか
ら後に定圧gipだけ離れている。
The present invention will be explained in detail with reference to FIG. 5. 4a is a stationary clamp of the feeding mechanism 4, the same <4b or the moving clamp of FIG. 8, 5 is each shearing device of FIG. 9, and 1a is the upper and lower part of the resistance welding machine. Welding location with electrodes, 6 indicates the full width shear device of FIG. The shearing position of each individual shearing device 5 is spaced back from the welding position 1a by a constant pressure gip.

製品A、B、Cを作るに必要な全部の数、こ\では7本
の主筋は当初はそれぞれの供給路へ引出し、先端を各個
性[r装置5て切り揃えて待機させる。
The total number of main bars necessary to make products A, B, and C, in this case seven main bars, are initially pulled out to their respective supply channels, and the tips are cut to each individual [r device 5] and kept on standby.

その全部の主筋中、作るべき製品にとって必要な何本か
の主筋Wは従来通り、定置クランプ4aをゆるめ、移動
クランプ4bてくわえて所要ピッチだけ進め、そこて定
置クランプ4aて再び固定し、移動クランプ4bをゆる
めて戻す。この間欠送給の停止中に、溶接位置1aへ製
品の幅に対応した長さに切断した副筋Wを直交状に送り
込み、上部電極を圧下し通電して溶接を繰返すのは従来
どおりである。
Among all the main reinforcing bars, some of the main reinforcing bars W necessary for the product to be made are moved as usual by loosening the stationary clamp 4a, holding the movable clamp 4b and advancing it by the required pitch, then fixing it again with the stationary clamp 4a and moving it. Loosen the clamp 4b and return it. While this intermittent feeding is stopped, the sub-reinforcement W cut to a length corresponding to the width of the product is fed perpendicularly to the welding position 1a, the upper electrode is pressed down and energized, and welding is repeated as before. .

問題は異なる製品を後続させる場合である。The problem arises when different products follow.

第4図のA製品の後端(矢印の進行方向によれば右端)
より定圧Muだけ前方に位置する副筋w1を、溶接位置
1aで溶接するため、主筋Wc2本、W、3本を停めた
間に第4図A製品の内側の三木の主筋Waは後続のB製
品では使用しないので、人間か設定装置又は検出装置が
制御装置を介し各個剪断装置5へ指令して、このl#、
3本だけを切らせる。切った3本の主筋W8の後部は夫
々Wa用の主筋送給機構4に指令して放し、以後は停め
ておく。
The rear end of product A in Figure 4 (the right end according to the direction of arrow)
In order to weld the sub-reinforcement w1, which is located further forward by a constant pressure Mu, at the welding position 1a, while the main reinforcements Wc2, W, and 3 are stopped, the main reinforcement Wa of Miki inside the product A in Fig. 4 is attached to the following B. Since it is not used in the product, a human, setting device, or detection device instructs each shearing device 5 via the control device to set the l#,
Have only 3 pieces cut. The rear parts of the three cut main reinforcements W8 are respectively released by commanding the main reinforcement feeding mechanism 4 for Wa, and are kept parked thereafter.

またそれまて停って待機していたB製品で使用する内側
二本の主筋Wbはその送給機構4にこれらをくわえさせ
進められるようにする。
Moreover, the two inner main reinforcements Wb used in product B, which had been stopped and waiting, are held in the feeding mechanism 4 so that they can be advanced.

それからA、B両製品の共通の主筋WcとB製品の専用
主fIf5w+、を端部副筋ピッチpだけ進めてA′3
A品最後尾の副筋W0を溶接し、続いてA、B両製品の
境界をはさむ両側副筋の所定間隔rだけ前記主筋り、 
Wbを進めて、B製品の先頭副筋w2(第4 。
Then, advance the common main reinforcement Wc of both products A and B and the dedicated main reinforcement fIf5w+ of product B by the end sub-reinforcement pitch p to A'3.
Weld the last sub-reinforcement W0 of product A, and then weld the main reinforcement by a predetermined interval r between sub-reinforcements on both sides that sandwich the boundary between products A and B,
Proceed with Wb and move to the first subplot w2 (4th) of B product.

図)を溶接し、以後はB製品の各副筋な順次所要ピッチ
で溶接する。
Figure) is welded, and then each sub-reinforcement of product B is welded in sequence at the required pitch.

そして、A、B両製品境界部か全幅剪断装置6へ入った
時、第6図のように、A製品の後尾副筋w、とB製品の
先頭副筋W2とが剪断上刃6aの両側対称位置に停まる
よう、装置は設計しである。
Then, when the boundary between the A and B products enters the full-width shearing device 6, as shown in FIG. The device is designed to stop in symmetrical positions.

そのため、このとき両面上刃6aを左右下刃6b、6b
間へ圧下して、副筋w0、w2間の円外側共通主筋Wc
と、内側の主筋Wa、 W、の切断端とすべてを一斉に
剪断すると、第6図に示す上刃6aの寸法により、A製
品の最後尾副筋W0からのすべての主筋W、 、Ml、
の後向き突出量及びB製品の先頭副筋W2からの主筋W
c1bの前向き突出量が所定の9に等しくなる。つまり
上刃6aの厚みは境界副筋VV 6 、 W2間の間隔
rから主筋突出量9の二倍を差引いた値にしである。
Therefore, at this time, the double-sided upper blade 6a is replaced by the left and right lower blades 6b, 6b.
Press down between the circular outer common main muscles Wc between the sub-reams w0 and w2.
When all the cut ends of the inner main reinforcements Wa, W, and all are sheared at the same time, all the main reinforcements W, , Ml, from the last sub-reinforcement W0 of product A, due to the dimensions of the upper blade 6a shown in FIG.
Backward protrusion amount and main reinforcement W from the top secondary reinforcement W2 of product B
The amount of forward protrusion of c1b becomes equal to the predetermined value of 9. In other words, the thickness of the upper blade 6a is equal to the value obtained by subtracting twice the protrusion amount 9 of the main reinforcement from the distance r between the boundary sub-reinforcements VV 6 and W2.

なお全幅剪断装置6の上下刃を第7図のような切り代を
生じないものにする場合は、境界副筋間隔r=主筋突出
量qX2とすればよく、これにつれ前述の定間隔Aは、
上刃6aの厚みの半分だけ短い第7図A′になる。
In addition, if the upper and lower blades of the full-width shearing device 6 are to be made so that they do not produce cutting allowances as shown in FIG.
The result is A' in FIG. 7, which is shorter by half the thickness of the upper blade 6a.

この発明の連続製造装置は、上述の製造法を実施するた
めの装置であるから、原則的に鉄筋コイル2から直接各
主筋供給路3へ主筋を送る機構、溶接位置の手前で主筋
の先端も後尾も切る各個剪断装置の配置、副筋溶接中に
前後製品を分断する全幅剪断装置の配置、そして先行製
品後端から定距離1或いはI′だけ前に位置する副筋w
、の溶接のための停止中に、先行製品では使用したか、
後続製品では使用しない主筋Waを、人か設定装置また
は検出装置から指令を受けて、当該主筋W、の後尾切断
と送給停止を、それぞれの各個剪断装置5、主筋送給機
構4に命じ、先行製品では使用せず、後続製品で使用す
る待機位訛の主筋1llbを共通主筋wcと一緒に前進
させるようその主筋Wbの送給機構4に命ずる制御装置
等が新規なものである。
Since the continuous manufacturing apparatus of the present invention is an apparatus for carrying out the above-mentioned manufacturing method, it basically has a mechanism that feeds the main reinforcement directly from the reinforcing steel coil 2 to each main reinforcement supply path 3, and also has a mechanism that feeds the main reinforcement directly from the reinforcing steel coil 2 to each main reinforcement supply path 3. The arrangement of individual shearing devices that also cut the trailing part, the arrangement of the full-width shearing device that separates the front and rear products during sub-reinforcement welding, and the sub-reinforcement located a fixed distance 1 or I' in front of the rear end of the preceding product.
, used in the preceding product during the stop for welding,
Receives a command from a person, a setting device, or a detection device for a main reinforcement Wa that will not be used in subsequent products, and instructs each individual shearing device 5 and main reinforcement feeding mechanism 4 to cut the trailing part of the main reinforcement W and stop feeding; The control device, etc. that instructs the feeding mechanism 4 of the main reinforcement Wb to advance the standby accent main reinforcement 1llb, which is not used in the preceding product but is used in the subsequent product, together with the common main reinforcement WC, is new.

もっとも、上記各機構、装置そのものに新規性はなく、
制御装置は初歩的なもので足りるので詳しい説明を略す
However, the above mechanisms and devices themselves are not novel;
Since the control device is basic, detailed explanation will be omitted.

次に上記実施例の主な機械部分だけ、簡単に説明する。Next, only the main mechanical parts of the above embodiment will be briefly explained.

まず鉄筋コイル2は第1.2図に示すように回転台上に
軸を垂直にして載ったものが、主筋供給路3の全数に、
予備コイルも加えた数を揃えて教室に入れられ、全部の
鉄筋は検出装置2aを経て油圧ユニット7上の案内部7
aへ引出され、こ\から平行して進むようになっている
。−個のコイル2が尽きた時、直ちに予備コイルに切換
える。
First, as shown in Fig. 1.2, the reinforcing steel coil 2 is mounted on a rotary table with its axis perpendicular to the main reinforcing bar supply path 3.
The number of reinforcing bars, including the spare coils, is put into the classroom, and all the reinforcing bars pass through the detection device 2a and are sent to the guide section 7 on the hydraulic unit 7.
It is pulled out to a, and from there it moves parallel to the other direction. - When the coil 2 is exhausted, it is immediately switched to the spare coil.

各主筋送給機構4の移動クランプ4bの上部を第8図に
示すが、押上げ用流体圧シリンダ12の上向きロッド1
2aにクランプ・チップ13がかぶさり、これが主筋W
を天井に押付けたり、ゆるめたりする。主筋Wの案内管
14が付属している。
The upper part of the movable clamp 4b of each main reinforcement feeding mechanism 4 is shown in FIG.
The clamp tip 13 covers 2a, and this is the main reinforcement W.
Press it against the ceiling or loosen it. A guide tube 14 for the main reinforcement W is attached.

このようなりランプか各主筋供給路に配置され、それら
が一体の梁材(閃絡)に固定され、梁材両端部のレール
沿いに一斉に、副筋ピッチだけ往復移動する。
In this way, ramps are placed in each main reinforcement supply path, and they are fixed to a single beam (flash) and reciprocate along the rails at both ends of the beam by the sub-reinforcement pitch.

ピッチ送りalJIIaは従来どおりであるから説明を
略す。
Since the pitch feed alJIIa is the same as before, its explanation will be omitted.

この発明の独特の働きをする各個剪断装置5は第1.2
図に示すように、この例では溶接変圧器の下方の各主筋
供給路3にそれぞれ設けられた第9図のもので、案内管
15のさきの剪断刃16.16aは、常時は主筋を素通
りさせる通孔16bを有し、流体圧シリンダ17か押具
18を押下げると、リンク機構19が刃16を押下げ、
通孔16b内の主筋を剪断するようにしている。
Each individual shearing device 5 having a unique function of the present invention has a number 1.2.
As shown in the figure, in this example, the shearing blades 16.16a in front of the guide pipe 15 normally pass through the main reinforcing bars without passing through the main reinforcing bars. When the fluid pressure cylinder 17 or the push tool 18 is pushed down, the link mechanism 19 pushes down the blade 16,
The main reinforcement inside the through hole 16b is sheared.

第6図に示した両面切りと刃6a、下刃6bをつけた全
幅剪断装置6は第1.2図及び第10図に示すか、両側
レール20沿いに位置調整可能であり、両端の押上シリ
ンダ21により、てこ22を介してラム23を垂直柱2
4沿いに押下げ、各種製品を全幅剪断できる長大な上刃
6aを左右下刃6bの間へ圧下するものである。
The full-width shearing device 6 shown in FIG. 6, equipped with a double-sided cutter, a blade 6a, and a lower blade 6b, is adjustable in position along the rails 20 on both sides, as shown in FIGS. The cylinder 21 moves the ram 23 to the vertical column 2 through the lever 22.
4, a long upper blade 6a capable of shearing various products across its entire width is rolled down between the left and right lower blades 6b.

以上、この発明の製造法とその装置な一実施例によって
説明したが、この発明はその要旨を変えることなく、実
施に当る機械を針溝、現場技術者により多様に変化、応
用し得ることはいうまでもない。
The manufacturing method and apparatus of this invention have been explained above using one embodiment, but without changing the gist of the invention, the invention can be varied and applied in various ways depending on the needle groove and the field engineer. Needless to say.

〈発明の効果〉 この発明は縦筋装置の異なる網状鉄筋を、はじめて、連
続して製造し、分断する工法とその装置を提供し得た。
<Effects of the Invention> The present invention has provided, for the first time, a method and an apparatus for continuously manufacturing and dividing reticular reinforcing bars with different vertical reinforcement devices.

それは金網溶接機へ向うすべての配列の縦筋用主筋供給
路に、鉄筋コイルから引出してきた主筋を納めるから、
各種縦筋配置の製品な主筋の横移動なしに、適宜選択使
用でき、鉄筋コイルか尽きるまて連続供給てきる。
This is because the main reinforcing bars pulled out from the reinforcing steel coils are stored in the main reinforcing bars for all arrays of vertical bars heading towards the wire mesh welding machine.
Products with various vertical reinforcement arrangements can be selected and used as appropriate without horizontal movement of the main reinforcement, and the reinforcing steel coils can be continuously supplied until they are exhausted.

溶接位置により定距離手前の各個剪断位置で、各主筋な
横並びに切り揃えて主筋先端を待機させ、先行製品後端
より上記定距離だけ前の副筋溶接時、後続製品にない配
置の先行製品主筋を同じ各個剪断位置て後尾切断するか
ら、その後尾と待機中の主筋先端とか横一線に揃う。
Depending on the welding position, at each individual shearing position a certain distance before, each main reinforcement is cut side by side and the tips of the main reinforcement are placed on standby, and when welding the sub-reinforcement at the specified distance in front of the rear end of the preceding product, the preceding product is placed in a position that is not present in the subsequent product. Since each main reinforcement is cut at the same shear position, the tail and the tip of the main reinforcement that is waiting are aligned horizontally.

上記後尾切断と同時に、後続製品にあって先行製品にな
い主筋として、待機中の当該配置の主筋を送給装置にく
わえさすから1次の副筋溶接のための間欠送給ては、先
行製品の後尾切断端と後続製品の主筋先端とか横一線に
並んて進む。これにより先行、後続両製品境界をはさむ
両側副筋の間隔を適当に選んで溶接し、境界中央部のす
べての主筋を適当な刃幅の剪断刃で切れば、−挙に両製
品前後端の主筋突出量を規格値に合わせられるのである
At the same time as the above-mentioned trailing cut, as a main reinforcement in the subsequent product but not in the preceding product, the waiting main reinforcement in the corresponding arrangement is held in the feeding device, so intermittent feeding for primary sub-reinforcement welding is performed on the preceding product. The trailing cut end and the tip of the main bar of the succeeding product line up in a horizontal line. As a result, if the spacing between the sub-reinforcements on both sides sandwiching the boundary between the leading and succeeding products is appropriately selected and welded, and all the main reinforcements at the center of the boundary are cut with a shear blade of an appropriate blade width, the front and rear ends of both products can be welded. This allows the main reinforcement protrusion amount to be adjusted to the standard value.

本出願人かすCに開発ずみである副筋ピッチ異なる製品
の連続製造に加え、この発明により縦筋配置界なる製品
の連続製造も可能になった事は、規格に適合したあらゆ
る寸法の網状鉄筋の連続製造を可能にし、多品種小量生
産の全自動化への道を開いたのである。
In addition to the continuous production of products with different sub-rebar pitches, which was developed by the applicant Kasu C, this invention also enables the continuous production of products with vertical bar arrangement. This enabled continuous manufacturing and paved the way for full automation of high-mix, low-volume production.

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

第1,2図はこの発明の一実施例の平面図、立面図、第
3図は製品の網状鉄筋の一例平面図、第4図は三種の異
なる製品A、B、Cを連続製造した場合の平面説明図、
第5図はこの発明の製造法の要部を示す立面図、第6図
は全幅剪断装置の刃部拡大立面図、第7図は同しく他の
実施例立面図、第8図は移動クランプ上部の拡大立面図
、第9図は各個剪断装置の立面図、第10図は全幅剪断
装置の要部立面図て、図中、3は主筋供給路、4は主筋
送給機構、5は各個剪断装置、6は全幅剪断装置である
。 特許出願人 株式会社三葉製作所 同代理人 弁理士  福  1) 信  行   □同
代理人 弁理士  福  1) 賢  三□ 、゛。
Figures 1 and 2 are a plan view and an elevation view of an embodiment of this invention, Figure 3 is a plan view of an example of a reticulated reinforcing bar of a product, and Figure 4 is a continuous production of three different products A, B, and C. A plan view of the case,
FIG. 5 is an elevational view showing the main parts of the manufacturing method of the present invention, FIG. 6 is an enlarged elevational view of the blade of a full-width shearing device, FIG. 7 is an elevational view of another embodiment, and FIG. 8 is an enlarged elevational view of the upper part of the movable clamp, Figure 9 is an elevational view of each individual shearing device, and Figure 10 is an elevational view of the main part of the full width shearing device. The feeding mechanism, 5 is an individual shearing device, and 6 is a full width shearing device. Patent applicant Mitsuha Seisakusho Co., Ltd. Patent attorney Fuku 1) Nobuyuki □Same agent Patent attorney Fuku 1) Kenzo □,゛.

Claims (3)

【特許請求の範囲】[Claims] (1)金網の溶接機へ主筋を数本並進させ、これに直交
状に副筋を一本ずつ抵抗溶接する前後端同形網状鉄筋の
製造法において、 金網溶接機の各種寸法製品用主筋供給路それぞれに、鉄
筋コイルから引出してきて納めた主筋の先端を、溶接位
置より定距離手前の各個剪断位置で横並びに切り揃えて
待機させ、 所要の主筋だけ一斉間欠送給して副筋を次々と溶接し、 製品後端より上記定距離だけ前方に位置する副筋を溶接
するため主筋を停めている間に、上記先行製品で使用し
たが後続製品では使用しない主筋だけ、上記各個剪断位
置で後尾を切断し、その後部を送給機構からはずし、 同時に先行製品で使用せず後続製品で使用する待機中の
主筋を送給機構にくわえさせ、 先後両製品の主筋を進め、両製品の境界をはさむ両側副
筋を溶接した後、先後両製品の共通主筋を製品の境界で
剪断することを特徴とする縦筋の配列が変化した鉄筋網
の連続製造法。
(1) In the method of manufacturing mesh reinforcing bars with the same shape at the front and back ends, in which several main bars are translated into a wire mesh welding machine, and sub-reinforcements are resistance welded one by one at right angles to the main bars, the main reinforcing bars are supplied to the wire mesh welding machine for products of various sizes. For each, the tips of the main reinforcing bars pulled out from the reinforcing steel coil and stored are cut side by side and aligned at each shearing position a certain distance before the welding position, and the main reinforcing bars are cut side by side and waited, and only the required main reinforcing bars are fed intermittently all at once, and the sub-reinforcing bars are sequentially fed. While the main reinforcement was stopped to weld the sub-reinforcement located the specified distance ahead of the rear end of the product, only the main reinforcement used in the preceding product but not used in the subsequent product was welded at the rear end at each shearing position described above. , and remove its rear part from the feeding mechanism. At the same time, the feeding mechanism holds the main reinforcement that is not used in the preceding product but is on standby to be used in the subsequent product. The main reinforcement of both the previous and subsequent products is advanced, and the boundary between the two products is A continuous manufacturing method for a reinforcing bar network in which the arrangement of longitudinal bars has changed, which is characterized by welding the sandwiching sub-reinforcements on both sides, and then shearing the common main bars of both the front and rear products at the boundary of the products.
(2)特許請求の範囲(1)に記載の製造法において、
その定距離は、製品端部の副筋相互間隔に、端部副筋か
らの主筋端突出量を加えた長さ、又はそれに全主筋一斉
剪断装置の切り代の半分を加えた長さである縦筋の配列
が変化した鉄筋網の連続製造法。
(2) In the manufacturing method described in claim (1),
The fixed distance is the length of the distance between sub-reinforcements at the end of the product plus the amount of protrusion of the end of the main bar from the sub-reinforcement at the end, or the sum of the length plus half of the cutting allowance of the simultaneous shearing device for all main bars. A continuous manufacturing method for reinforcing bar networks with varying longitudinal reinforcement arrangements.
(3)金網溶接機へ主筋を数本並進させ、これに直交状
に副筋を一本ずつ抵抗溶接する前後端同形網状鉄筋の製
造装置において、 製造する各種寸法製品すべてのための主筋供給路と、 上記各供給路へ、それぞれ鉄筋コイルから引出してきた
主筋を待機させ、またそれを各個にくわえて金網溶接機
へ間欠送給する主筋送給機構と、 上記供給路上、溶接位置より定距離手前で各主筋を切る
位置に設けた各個剪断装置と、 製品後端から上記定距離だけ前に位置する副筋の溶接停
止時間中に、先行製品にあって後続製品にない主筋があ
るとの指令を受けたら、その主筋の後尾切断と送給停止
を、それぞれ上記各個剪断装置、主筋送給機構に命じ、
先行製品で使用しないが後続製品では使用する主筋があ
るとの指令を受けたら、その位置の待機主筋をくわえる
よう上記主筋送給機構に命ずる制御装置と、 先行、後続両製品の境界をはさむ両側副筋が溶接機から
出た所で、両側副筋間で先後の製品の共通主筋を剪断す
る全幅剪断装置と、 を備えたことを特徴とする縦筋の配列が変化した鉄筋網
の連続製造装置。
(3) In a device for manufacturing mesh reinforcing bars with the same shape at the front and back ends, where several main reinforcing bars are translated to a wire mesh welding machine, and sub-reinforcements are resistance welded one by one orthogonally to the main reinforcing bars, the main reinforcing bars are supplied to the main reinforcing bars for all products of various dimensions to be manufactured. and a main reinforcement feeding mechanism that waits the main reinforcing bars pulled out from the reinforcing steel coils and intermittently feeds the main reinforcing bars pulled out from the reinforcing steel coils to each of the above supply paths to the wire mesh welding machine; During the welding stop time of each individual shearing device installed at the position to cut each main reinforcement at the front and the sub-reinforcement located at the specified distance in front of the rear end of the product, it is determined that there is a main reinforcement in the preceding product that is not in the subsequent product. When the command is received, the respective shearing devices and main reinforcement feeding mechanism are ordered to cut the trailing part of the main reinforcement and stop feeding, respectively.
When receiving a command that there is a main reinforcement that will not be used in the preceding product but will be used in the subsequent product, a control device that instructs the main reinforcement feeding mechanism to pick up the standby main reinforcement at that position, and both sides sandwiching the boundary between the preceding and succeeding products. A full-width shearing device for shearing the common main reinforcement of the next product between the sub-reinforcements on both sides at the point where the sub-reinforcement comes out of the welding machine, and continuous production of a reinforcing bar network with a changed arrangement of longitudinal reinforcement, characterized by comprising: Device.
JP26825587A 1987-10-26 1987-10-26 Continuous manufacture of reinforced net changing longitudinal reinforcement arrangement and its device Granted JPH01113181A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP26825587A JPH01113181A (en) 1987-10-26 1987-10-26 Continuous manufacture of reinforced net changing longitudinal reinforcement arrangement and its device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP26825587A JPH01113181A (en) 1987-10-26 1987-10-26 Continuous manufacture of reinforced net changing longitudinal reinforcement arrangement and its device

Publications (2)

Publication Number Publication Date
JPH01113181A true JPH01113181A (en) 1989-05-01
JPH0351509B2 JPH0351509B2 (en) 1991-08-07

Family

ID=17456037

Family Applications (1)

Application Number Title Priority Date Filing Date
JP26825587A Granted JPH01113181A (en) 1987-10-26 1987-10-26 Continuous manufacture of reinforced net changing longitudinal reinforcement arrangement and its device

Country Status (1)

Country Link
JP (1) JPH01113181A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100843647B1 (en) * 2006-12-18 2008-07-04 길인환 Automatic bending molding device of wire mesh with bend
JP2017511256A (en) * 2014-04-01 2017-04-20 アントニオス アナノストポロス System and process for feeding warp wires or rods to a mesh production machine
JP2019173296A (en) * 2018-03-27 2019-10-10 住倉鋼材株式会社 Rebar material for concrete reinforcement, rebar arrangement method using the sane, and manufacturing method of rebar material for concrete reinforcement

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7174504B2 (en) * 2015-10-15 2022-11-17 株式会社藤崎商会 Method for manufacturing and installing mesh for concrete paving
JP2020199552A (en) * 2020-09-09 2020-12-17 株式会社藤崎商会 Wire net welding device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100843647B1 (en) * 2006-12-18 2008-07-04 길인환 Automatic bending molding device of wire mesh with bend
JP2017511256A (en) * 2014-04-01 2017-04-20 アントニオス アナノストポロス System and process for feeding warp wires or rods to a mesh production machine
JP2019173296A (en) * 2018-03-27 2019-10-10 住倉鋼材株式会社 Rebar material for concrete reinforcement, rebar arrangement method using the sane, and manufacturing method of rebar material for concrete reinforcement

Also Published As

Publication number Publication date
JPH0351509B2 (en) 1991-08-07

Similar Documents

Publication Publication Date Title
KR100306555B1 (en) Reinforcing wire mesh manufacturing method and structure
US4500763A (en) Method and apparatus for the production of welded grid bodies
US4291732A (en) Method and apparatus for manufacture of wire truss and sinuous strut therefor
US3288977A (en) Apparatus for making girders
WO1996003234A1 (en) Plant for the continuous production of structural components
JPH01113181A (en) Continuous manufacture of reinforced net changing longitudinal reinforcement arrangement and its device
WO2011158070A1 (en) Method for feeding installations for automatically forming of electro-welded metal nets having special contoured shapes with whole bars or rods of steel in the longitudinal direction and associated apparatus for said productions
CN113732213A (en) Equipment for manufacturing positioning reinforcing mesh of railway prefabricated box girder
US4667707A (en) Method for assembling three-dimensional metal structures, machine for the manufacturing thereof, and structures obtained with such a method
JP2912116B2 (en) Apparatus and method for manufacturing three-dimensional welded reinforcing bar with formwork
US3961738A (en) Apparatus for making truss members
US3227851A (en) Method of and apparatus for trimming flash welded strip
US3597568A (en) Reinforcing steel mats
US6915572B1 (en) Method and plant for continuously producing construction
US4838322A (en) Method for assembling three-dimensional metal structures, machine for the manufacturing thereof, and structures obtained with such a method
CN113714436B (en) Method for manufacturing positioning reinforcing mesh of railway prefabricated box girder
AT405030B (en) SYSTEM FOR THE PRODUCTION OF REINFORCEMENT MATS
US3501824A (en) Machine for assembling and securing end caps to tubes
US20060283913A1 (en) Apparatus for manufacturing prefabricated sandwiched building panels
EP1110656A1 (en) A machine for manufacturing electro-welded metal reinforcements
JPH06226388A (en) Device for manufacturing deformed wire net
US3936932A (en) Method and apparatus for making filter electrodes
US2660203A (en) Machine for making prefabricated steel structural members
JPH09225570A (en) Method for treating wire end and device therefor
EP1407839B1 (en) Installation for cutting metal bars

Legal Events

Date Code Title Description
LAPS Cancellation because of no payment of annual fees