JPS5822387A - Apparatus for supplying current to loop like steel wire material - Google Patents

Abstract

PURPOSE:To attain to reduce spark generating numbers and to prevent the variation of a current supply amount, by a method wherein a roller made of a metal is provided to and contacted with the lower part of a loop like steel wire material are provided to and contacted with the both sides of said wire material to supply current from one of them or both of them. CONSTITUTION:A horizontally placed loop like wire material 2 is conveyed from right to left in a plating tank 1 by a heat resistant non-conductive conveyor 3 to be immersed in and introduced into the tank 1. In this case, directly in front of the entrance to the tank 1 of the wire material 2, a roller 4 made of a metal is provided to be contacted with the lower part of the wire material 2 as well as a pair or more of gripping rollers 5 made of a metal are provided so as to approach the back of the roller 4. In this case, the wire material 2 is pressed to the conveying surface of the conveyor 3 by the own wt. of the roller 5 itself. By this method, a contact condition of the wire material with the roller 4 or the roller 5 or both of them is improved and a yield and an operation ratio in a plating and wire drawing processes are enhanced.

Description

【発明の詳細な説明】 本発明はループ状鉄鋼線材を横置してコンベアによシ搬
送しながら、めっき、酸洗、脱脂等の連続電気化学処理
を行なう際のループ状鉄鋼線材の給電装置に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention provides a power supply device for loop-shaped steel wire rods when carrying out continuous electrochemical treatments such as plating, pickling, and degreasing while the loop-shaped steel wire rods are placed horizontally and conveyed by a conveyor. Regarding.

従来技術として以下にループ状鉄鋼線材を電気めっきす
る場合の給電方法について説明する。従来においてルー
プ状鉄鋼線材を横置してコンベアにより搬送しながら連
続的に電気めっきを行なう場合の給電方法としては、第
１図ａ、ｂに示す如り、メつき檜１内に設置した搬送コ
ンベア３の両端に給電用金属製ローラ４，１２を設け、
該給電用金属製ロー２４，１２からコンベア３上のルー
プ状鉄鋼線材２に給電するようになっている。めつき槽
ｌ内にはめっき液１４が入れられておシ、また第１図す
に示すように、めつき槽１内の線材２移送ラインの上下
側には複数の陽極となる銅板１３が配置され、これらに
よって線材２に対し所望の電気めっきが施される。As a conventional technique, a power supply method when electroplating a loop-shaped steel wire will be described below. Conventionally, as a power supply method when electroplating is carried out continuously while a looped steel wire is placed horizontally and transported by a conveyor, as shown in Fig. Power feeding metal rollers 4 and 12 are provided at both ends of the conveyor 3,
Power is supplied to the loop-shaped steel wire 2 on the conveyor 3 from the power feeding metal rows 24, 12. A plating solution 14 is placed in the plating tank 1, and as shown in FIG. By these, desired electroplating is applied to the wire 2.

しかしながら、この方法においては、第２図に示すよう
に、給電用金属製ローラー４近傍でループ状鉄鋼線材２
の一部に立上り現象が起きて、ループ相互間が離れるの
で金属製ローラ４とループ状鉄鋼線材２との給電のため
の接触点数が少なくなる。第２図はめつき摺入側部につ
いて示したものであるが、出側部についても実質的に同
様の状態となる。又、ループ状鉄鋼線材自体が弾性を有
すること、搬送コンベアが振動すること等によって、ル
ープ相互間およびループ状鉄鋼線材と給電用金属製ロー
ラとの間において離接をくりかえし、接触点数が絶えず
変動する。However, in this method, as shown in FIG.
A rising phenomenon occurs in a part of the loops, and the loops are separated from each other, so that the number of contact points between the metal roller 4 and the loop-shaped steel wire 2 for power supply is reduced. Although FIG. 2 shows the plating and sliding entry side, the exit side is also in substantially the same state. In addition, due to the elasticity of the looped steel wire itself and the vibration of the conveyor, the loops repeatedly come into contact with and separate from each other and between the looped steel wire and the power supply metal roller, causing the number of contact points to constantly fluctuate. do.

このように、ループ状鉄鋼線材と給電用金属製ローラと
の接触点数が少ないことから、所要めっき電流を流すた
めには、ｌ接触点画シの給電量が過大となり、スパーク
が頻繁に発生する。このスパークは、線材表層部にスパ
ーク痕を形成させる。As described above, since the number of contact points between the looped steel wire and the power supply metal roller is small, in order to flow the required plating current, the amount of power supplied at each contact point becomes excessive, and sparks occur frequently. This spark forms spark marks on the surface layer of the wire.

この線材表層部に形成されたスパーク痕は次工程である
仕上伸線工程における伸線性にきわめて悪影響を与える
。しかもスパークの発生は給電用金属製ローラの表面を
徐々に溶損させて、ループ状鉄鋼線材への給電条件を一
悪化させ、このため、給電用金属製ローラーは短時間に
定期的な取替補修が必要となってくる。さらにループ状
鉄鋼線材と給電用金属製ローラとの接触がきわめて不安
定であシ、従って接触点数が絶えず変動し、かつ１接触
点当りの給電量が大であることから、給電用金属製ロー
ラからループ状鉄鋼線材への給電量が絶えず大巾に変動
する。めっき処理においては、この給電量（めっき電流
〕の変動が直接的にめっき厚の均一化に悪影響を及ぼす
ため、成品の品質管理上きわめて致命的な欠陥となり、
商品価値を失うものとなる。このようなスパークの発生
および給電量の変動はめつき、伸線工程における歩留シ
および稼動率の低下の重大な要因となっている。The spark marks formed on the surface layer of the wire have a very negative effect on the wire drawability in the next step, the final wire drawing step. Moreover, the generation of sparks gradually melts the surface of the power supply metal roller, worsening the power supply conditions to the looped steel wire rod, and as a result, the power supply metal roller must be replaced regularly in a short period of time. Repairs will be required. Furthermore, the contact between the looped steel wire and the power supply metal roller is extremely unstable, and therefore the number of contact points constantly fluctuates, and the amount of power supplied per contact point is large. The amount of power supplied to the looped steel wire constantly fluctuates widely. In the plating process, fluctuations in the amount of power supplied (plating current) directly affect the uniformity of the plating thickness, resulting in extremely fatal defects in terms of product quality control.
Product value will be lost. Such generation of sparks and fluctuations in the amount of power supplied are serious causes of plating and a reduction in yield and operation rate in the wire drawing process.

本発明は、上記のような従来技術における諸問題をこと
ごとく解消するもので、スパークの発生数の低減および
給電量の変動を防止して、常に最適な給電状態を得るこ
とができるループ状鉄鋼線材の給電方法を提供すること
を目的とする。The present invention solves all of the problems in the prior art as described above, and provides a loop-shaped steel wire that reduces the number of sparks and prevents fluctuations in the amount of power supplied, so that an optimal power supply state can always be obtained. The purpose is to provide a power supply method.

しかして本発明の要旨とするところは、ループ状鉄鋼線
材を横置して搬送しながら連続電気化学処理を行なう際
の給電装置において、金属製ローラーをループ状鉄鋼線
材の下部に接触させて設置するとともに１対以上の挟接
用金属製ローラーを前記ループ状鉄鋼線材の両側方よシ
前記ループ状鉄鋼線材を下方へ押付ける如く挟接して設
置し、前記金属製ローラーと、挟接用金属製ローラーの
少なくとも一方から前記ループ状鉄鋼線材に給電するこ
とを特徴とするループ状鉄鋼線材の給電装置である。However, the gist of the present invention is to install a metal roller in contact with the lower part of the loop-shaped steel wire in a power supply device for continuous electrochemical treatment while conveying the loop-shaped steel wire horizontally. At the same time, one or more pairs of pinching metal rollers are installed on both sides of the loop-shaped steel wire so as to press the loop-shaped steel wire downward, and the metal rollers and the pinching metal This is a power supply device for a loop-shaped steel wire, characterized in that power is supplied to the loop-shaped steel wire from at least one of the rollers.

以下本発明をループ状鉄鋼線材の電気めっき処理に適用
した場合のめつき摺入側についての実施例である第３図
ａおよびｂに基づいて説明する。The present invention will be described below with reference to FIGS. 3a and 3b, which are examples of the plating insertion side when the present invention is applied to electroplating of a loop-shaped steel wire.

第３図ａは本発明による装置の平面図、第３図すはＡ　
−Ａ’からみた断面図である。Figure 3a is a plan view of the device according to the invention;
- It is a sectional view seen from A'.

第３図において矢印Ｂに示すごとく、めつき槽１の右方
から左方へとループ状鉄鋼線材２が横置されて耐熱、非
電導性の搬送コンベア３により連続的に搬送され、めつ
き槽１内へと浸漬進入する。As shown by arrow B in FIG. 3, the loop-shaped steel wire rod 2 is placed horizontally from the right side to the left side of the plating tank 1 and is continuously conveyed by a heat-resistant, non-conductive conveyor 3, and then plated. Enter into tank 1 by immersion.

ループ状鉄鋼線材２のめつき槽１への入口直前には金属
製ローラ４がループ状鉄鋼線材２の下部に接触した状態
で設置され、また、挟接用金属製ローラ５がループ状鉄
鋼線材２を前記金属製ローラ４の後に近接して、はぼル
ープ径分の距離以内にわたって、挟接用金属製ロー２５
自体の自重によりコンベア３の搬送面に対しループ状鉄
鋼線材２を押付けるが如く、複数対設けられている。該
挟接用金属製ローラ５は左右−個宛のローラをもって、
１対とし、ビン６を支点として先端にローラー５を遊嵌
したアーム７が揺動自在に具設され、しかも該アーム７
は、ストッパー８により揺動の最下限の位置を予め設定
し、あるいは調整できる様にしである。Immediately before the loop-shaped steel wire 2 enters the plating tank 1, a metal roller 4 is installed in contact with the lower part of the loop-shaped steel wire 2, and a nipping metal roller 5 is installed at the bottom of the loop-shaped steel wire 2. 2 is placed close to the back of the metal roller 4 and extends within a distance equal to the diameter of the loop.
A plurality of pairs are provided so that the loop-shaped steel wire 2 is pressed against the conveyance surface of the conveyor 3 by its own weight. The sandwiching metal rollers 5 have left and right rollers,
A pair of arms 7 are swingably provided with a roller 5 fitted loosely at the tip with the bottle 6 as a fulcrum.
The lower limit of the swinging position can be preset or adjusted using the stopper 8.

該挟接用金属製ローラー５の挟接力は、アーム７に立設
された挟接力調整おもり９をループ状鉄鋼線材２のテン
ション、線径等にょシ適宜加減すれば良い様になってお
シ、その挟接力の設定、即ちおもりの重さは、搬送され
るループ状鉄鋼線材２のピッチの乱れが生じることなく
、かつループ状鉄鋼線材２のループ相互間、およびルー
プ状鉄鋼線材２と給電用金属製ローラー５との間に離脱
をく９かえしたシしない程度とすれば適当である。The clamping force of the clamping metal roller 5 can be adjusted by appropriately adjusting the clamping force adjustment weight 9 installed on the arm 7 depending on the tension, wire diameter, etc. of the loop-shaped steel wire 2. The setting of the clamping force, that is, the weight of the weight, is such that the pitch of the looped steel wire 2 to be conveyed is not disturbed, and between the loops of the looped steel wire 2 and between the looped steel wire 2 and the power supply. It is appropriate to keep the distance between the metal roller 5 and the metal roller 5 to a level that does not cause repeated separation.

また挟接用金属製ローラー５は、コンベア３の搬送速度
で滑ることなく同調して回転させるのが良く、そのため
余り小径のローラーや固定された軸と金属製ローラ５と
の取付は、滑らかに回転ずべく設けるのが良い。１０は
金属製ローラ４の集電ホイール、１１は駆動源である。In addition, it is preferable that the metal roller 5 for pinching rotates in sync with the conveyance speed of the conveyor 3 without slipping, so that the metal roller 5 can be smoothly attached to a roller with a small diameter or a fixed shaft. It is best to install it so that it rotates. 10 is a current collection wheel for the metal roller 4, and 11 is a driving source.

以上のような本発明の装置によると、第３図すに示す如
く、挟接用金属製ローラー５により、ループ状鉄鋼線材
２は、両側部の密接域を中心に圧下挟接され、第２図に
示す従来のようなループの立ち上がりは皆無となり、ル
ープ相互間およびループ状鉄鋼線材２と金属製ローラ４
との接触度は飛躍的に良好となる。また、ループ状鉄鋼
線材２の弾性、搬送コンベア３の振動等により、ループ
面に凹凸が生じた場合においても挟接用金属製コーラ−
５は揺動自在に具設されているため、ループ状鉄鋼線材
２のループ面の凹凸にならって、自重を付加せしめて極
めて円滑に追従性を発揮する他、特筆すべきは、当該給
電部以前の投階＋生じた１ターンあるいは複数ターンの
ループが正規のループ列から飛び出した場合これを修正
する機能を持つことであシ、一般に、このような飛び出
しを無修正のまま電気化学処理、特に電気めっきを行っ
た場合、該飛び出し部にのみ異常にめっき厚が上る現象
を生じ、品質管理上好１しくないことになり、本発明の
給電装置によれば予め、めっき槽に浸漬される直前でル
ープ列を矯正することが可能となシ、均一なめっきが得
られることになる。According to the apparatus of the present invention as described above, as shown in FIG. As shown in the figure, there is no rise of the loops as in the conventional case, and there are no gaps between the loops and between the looped steel wire 2 and the metal roller 4.
The degree of contact with the robot will be dramatically improved. In addition, even if unevenness occurs on the loop surface due to the elasticity of the loop-shaped steel wire 2, vibration of the conveyor 3, etc., the metal collage for clamping
Since 5 is swingably installed, it can apply its own weight to the irregularities of the loop surface of the loop-shaped steel wire 2 and exhibit extremely smooth followability. It is necessary to have a function to correct when the loop of one turn or multiple turns that occurred in the previous stage + occurred jumps out of the regular loop row, and generally, such jumps are electrochemically processed without correction, In particular, when electroplating is performed, a phenomenon occurs in which the plating thickness increases abnormally only on the protruding parts, which is unfavorable in terms of quality control. It is possible to correct the loop row immediately before the process, and uniform plating can be obtained.

このようにして、ループ状鉄鋼線材２の給電部である金
属製ローラー４又は挟接用金属製ローラー５あるいは両
方への接触状態は飛躍的に改善されることになる。In this way, the state of contact of the looped steel wire 2 with the metal roller 4 serving as the power feeding portion, the nipping metal roller 5, or both is dramatically improved.

次に第３図に示す装置によって、ループ状鉄鋼線材を給
電した場合の入側部における実施例を示す。Next, an example will be shown in which the loop-shaped steel wire is fed with power using the apparatus shown in FIG. 3 at the entrance side.

（υループ状鉄鋼線材 線材の材質　　溶接用鉄鋼線材 線　　　　　径　　　２．　Ｏｍｍφ ループ径　　８００ｍｍ ループピッチ　　　１２■ 搬送速Ｉｆ　　　３．２　ｍ／−ｂ （２）金属製ローラ ローラー材質　ステンレン鋼 ローラー径　１９０■ ローラー数　３本 ローラー長さ　３８０　ｍ　（中央部の１本）２００鰭
（両端部の２本） （３）挟接用金属製ローラー ローラー材質　鋼 ローラー径　８０ｍ ローラー数　２対（１対２本） ローラー長さ　１００＋ｍ ローラー間隔　３００ｍ＋（１６０〜４００■で可変〕
（４）給電条件 給電量（めっき量）７００Ａ 給電部　　　　　■　挟接用金属製ローラーから給電 ■　金属製ローラーから給電 ■　挟接用金属製ローラーと、 金属製ローラーの両方から 給電 これらの条件によりループ状鉄鋼線材に給電した場合の
給電部におけるスパーク発生数を第１表に示す。(υ Material of loop-shaped steel wire wire Steel wire for welding Diameter 2. Ommφ Loop diameter 800 mm Loop pitch 12 ■ Conveying speed If 3.2 m/-b (2) Metal roller Roller material Stainless steel roller diameter 190 ■ Roller Number: 3 rollers Length: 380 m (1 in the center) 200 fins (2 at both ends) (3) Metal rollers for pinching Roller material Steel roller diameter: 80 m Number of rollers: 2 pairs (1:2) Rollers Length 100+m Roller spacing 300m+ (variable from 160 to 400cm)
(4) Power supply conditions Power supply amount (plating amount) 700A Power supply part ■ Power supply from the metal roller for sandwiching ■ Power supply from the metal roller ■ Power supply from both the metal roller for sandwiching and the metal roller Based on these conditions, the loop Table 1 shows the number of sparks generated at the power supply section when power is supplied to the shaped steel wire.

また挟接用金属製ローラーと、金属製ローラの両方から
給電した場合における給電量の変動状態を第４図ａ、ｂ
に示す。ａは本発明による場合、ｂは従来の方法による
場合である。第１表から本発明によシスパーク発生数が
従来に比へてイ。〜４゜。In addition, Figure 4 a and b show the fluctuations in the amount of power supplied when power is supplied from both the metal rollers for sandwiching and the metal rollers.
Shown below. A is a case according to the present invention, and b is a case according to a conventional method. Table 1 shows that the number of sysparks generated by the present invention is greater than that of the conventional method. ~4°.

に減少したことがわかる。又、第４図から本発明により
、給電量の変動量が約％に小さくなったことがわかる。It can be seen that it has decreased. Furthermore, from FIG. 4, it can be seen that according to the present invention, the amount of fluctuation in the amount of power supplied has been reduced to about %.

以上の、ａく、本発明によれば、給電のための接触点数
が増加し、１接触点を流れる電流値が小さくなることに
より依存度が軽くなシ、ス１５−り発生が激減したため
、金属製ローラーの取替補修は、従来３００〜６００時
間を周期として行なっていたのが、１７００〜２５００
時間となシ、又仕上伸線時の伸線性も向上し、溶接用鉄
鋼線材を７ダイスによυ線径２，０簡φから線径１，２
■φまで伸線する場合７ダイス当シ、従来０．６〜０．
７ｔの伸線量であったものが、本発明によシＬＯ〜１．
１ｔの伸線量となシ著しく伸線性が向上した。As described above, according to the present invention, the number of contact points for power supply is increased, and the current value flowing through one contact point is reduced, resulting in a drastic reduction in the occurrence of problems with low dependence. The replacement and repair of metal rollers used to take place every 300 to 600 hours, but now it takes about 1,700 to 2,500 hours.
In addition, the wire drawability during finishing wire drawing is improved, and the steel wire rod for welding is processed from υ wire diameter 2.0 simple φ to wire diameter 1.2 through 7 dies.
■When drawing wire up to φ, 7 dies are used, conventionally 0.6 to 0.
The wire drawing amount was 7 tons, but according to the present invention, the wire drawing amount was LO~1.
The wire drawability was significantly improved with a wire drawing amount of 1 ton.

又、給電量の変動が小さくなったため、めっき厚のバラ
ツキも減少し、成品の品質が向上した。従つてめっき工
程、伸線工程における歩留、稼動率が向上する。In addition, since the fluctuation in the amount of power supplied was reduced, the variation in plating thickness was also reduced, and the quality of the finished product was improved. Therefore, the yield and operation rate in the plating process and wire drawing process are improved.

以上、ループ状鉄鋼線材に電気めっきを行なう場合の給
電について本発明を適用した例を述べたが、電気めっき
に限らず電解処理を行なう酸洗。Above, we have described an example in which the present invention is applied to power supply when electroplating a loop-shaped steel wire rod, but it is not limited to electroplating, and pickling that performs electrolytic treatment.

脱脂等においてもその効力を発揮する。It also shows its effectiveness in degreasing, etc.

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

第１図ａ、ｂは従来技術における給電方法、ａは平面図
、ｂは断面図、第２図は従来の入側給電部における説明
図、第３図ａ、ｂは本発明における給電装置の一実施例
でａは平面図、ｂｉｌｉＡ−Ａ’からみた断面図、第４
図ａ、ｂは給電量′の変動状態を示す図でａは本発明の
場合、ｂは従来技術による場合である。 １・・・めっき槽、２・・・ループ状鉄鋼線材、３・・
・搬送コンベア、４・・・金属製ローラー、５・・・挟
接用金属製ローラ群、６・・・ピン、７・・・アーム、
８・・・ストッパー、９・・・調整おもり、１０・・・
集電ホイール、１１・・・駆動源、１２・・・給電用金
属製ローラ、１３・・・めっき用銅板、１４・・・めっ
き液、Ｂ・・・ループ状鉄鋼線材の搬送方向。 特許出願人　代理人 弁理士　矢　葺　知　； （ほか１ 第１図 （６１） 準　２ｉ1a and 1b are power feeding methods in the prior art, a is a plan view, b is a cross-sectional view, FIG. 2 is an explanatory diagram of a conventional input power feeding section, and FIGS. In one embodiment, a is a plan view, a sectional view taken from biliA-A', and the fourth
Figures a and b are diagrams showing the fluctuation state of the power supply amount', where a shows the case of the present invention and b shows the case of the conventional technology. 1... Plating tank, 2... Loop-shaped steel wire rod, 3...
・Transport conveyor, 4... Metal roller, 5... Metal roller group for pinching, 6... Pin, 7... Arm,
8... Stopper, 9... Adjustment weight, 10...
Current collection wheel, 11... Drive source, 12... Metal roller for power supply, 13... Copper plate for plating, 14... Plating solution, B... Conveyance direction of loop-shaped steel wire rod. Patent Applicant Representative Patent Attorney Tomo Yafuki; (Other 1 Figure 1 (61) Semi-2i

Claims (1)

【特許請求の範囲】[Claims] ループ状鉄鋼線材を横置して搬送しながら連続的な電気
化学処理を行なう際の給電装置において、金属製ローラ
ーをループ状鉄鋼線材の下部に接触させて設置するとと
もに、１対以上の挟接用金属製ローラーを、前記ループ
状鉄鋼線材の両側方より前記ループ状鉄鋼線材を下方へ
押付ける如く挟接して設置し、前記金属製ローラーと挟
接用金属製ローラーの少なくとも一方から前記ループ状
鉄鋼線材に給電することを特徴とするループ状鉄鋼線材
の給電装置。In a power supply device for continuous electrochemical treatment while conveying a looped steel wire horizontally, a metal roller is installed in contact with the lower part of the looped steel wire, and one or more pairs of pinched rollers are installed. A metal roller for clamping the loop-shaped steel wire is installed from both sides of the loop-shaped steel wire so as to press the loop-shaped steel wire downward, and the loop-shaped steel A power supply device for a loop-shaped steel wire, characterized in that it supplies power to a steel wire.