JPH0124708B2 - - Google Patents
Info
- Publication number
- JPH0124708B2 JPH0124708B2 JP58176627A JP17662783A JPH0124708B2 JP H0124708 B2 JPH0124708 B2 JP H0124708B2 JP 58176627 A JP58176627 A JP 58176627A JP 17662783 A JP17662783 A JP 17662783A JP H0124708 B2 JPH0124708 B2 JP H0124708B2
- Authority
- JP
- Japan
- Prior art keywords
- wire
- spool
- winding
- start end
- winding start
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 238000004804 winding Methods 0.000 claims description 81
- 238000005452 bending Methods 0.000 claims description 27
- 239000000463 material Substances 0.000 claims description 9
- 239000002184 metal Substances 0.000 claims description 4
- 230000000630 rising effect Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 238000003466 welding Methods 0.000 description 3
- 208000027418 Wounds and injury Diseases 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 230000006378 damage Effects 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H65/00—Securing material to cores or formers
Landscapes
- Storage Of Web-Like Or Filamentary Materials (AREA)
Description
【発明の詳細な説明】
イ 産業上の利用分野
この発明はスプールに線材を巻取る際の線材巻
始め端をスプールに自動的に引つ掛けて係止固定
する線材の巻始め端掛止装置に関する。[Detailed Description of the Invention] A. Field of Industrial Application This invention is a wire winding start end latching device that automatically hooks and locks the wire winding start end onto the spool when winding the wire onto a spool. Regarding.
ロ 従来技術
例えば溶接機に送給する溶接材料の金属線など
の線材（単一線、撚線、被覆線等を含む）をスプ
ールに整列巻きする場合、巻始めに線材の巻始め
端をスプールの巻胴の一部に引つ掛けることが一
般に行われている。この線材巻始め端のスプール
への掛止めは線材巻始め端を予め鉤形等の形状に
折曲成形してこの折曲端部をスプールの巻胴一部
に形成した掛止孔に挿入し引つ掛ける手段が一般
的であるが、これでは線材巻始め端の折曲工程
と、折曲した線材端部をスプールの巻胴の掛止孔
に位置決めして疎通させる工程が必要で工数的、
設備的に不利である。B. Prior Art For example, when winding wire rods such as metal wires of welding material to be fed to a welding machine (including single wires, stranded wires, coated wires, etc.) onto a spool, the winding start end of the wire rods is placed on the spool at the beginning of winding. It is generally done by hooking it on a part of the winding drum. To hang the wire winding start end on the spool, the wire rod winding start end is bent in advance into a shape such as a hook, and this bent end is inserted into a hook hole formed in a part of the winding drum of the spool. The most common method is to hook the wire, but this requires a process of bending the end of the wire at the beginning of winding, and a process of positioning and communicating the bent end of the wire with the hooking hole in the winding drum of the spool, which is time-consuming. ,
It is disadvantageous in terms of equipment.
そこで上記問題を解決するものとして、線材巻
始め端をスプールの巻胴の掛止孔に挿通した後、
巻胴内に突出した線材端部を折曲して掛止孔に引
つ掛け固定する特願昭57−47195号として出願さ
れ実用化されている。この装置の一例を第１図乃
至第４図により説明すると、１は金属の線材、２
は線材１を巻回するとスプールで円筒状巻胴３の
両端外周に円板形フランジ４，４を一体に設け、
巻胴３の一端にはフランジ４の根元に接する１つ
の掛止孔５が形成されている。６，６はスプール
２の両フランジ４，４を把持してスプール２を線
材巻回時に一方に回転させるホルダで、線材巻始
め時のホルダ６，６は掛止孔５を定方向に向けて
スプール２を位置決め保持する。７は定位置に静
止時の一方のホルダ６を貫通してスプール２の巻
胴３内の掛止孔５近傍に先端部が突出する折曲軸
である。折曲軸７の先端部は線材１を挾む二股形
状に成形され、折曲軸７は外部駆動系（図示せ
ず）により回転且つ矢印Ｐ又はＱで示す軸方向に
往復動可能に配置される。 Therefore, in order to solve the above problem, after inserting the starting end of the wire rod into the hooking hole of the winding drum of the spool,
This method was filed as Japanese Patent Application No. 57-47195 and has been put to practical use, in which the end of the wire protruding into the winding drum is bent and hooked into a hooking hole for fixation. An example of this device will be explained with reference to FIGS. 1 to 4. Reference numeral 1 indicates a metal wire;
When the wire rod 1 is wound, a spool is used to integrally provide disk-shaped flanges 4, 4 on the outer periphery of both ends of the cylindrical winding drum 3.
A hooking hole 5 is formed at one end of the winding drum 3 and is in contact with the base of the flange 4. Reference numerals 6, 6 denote holders that grip both flanges 4, 4 of the spool 2 and rotate the spool 2 in one direction when winding the wire, and when starting to wind the wire, the holders 6, 6 hold the latching holes 5 in a fixed direction. Position and hold the spool 2. Reference numeral 7 denotes a bending shaft that passes through one of the holders 6 when the spool is stationary at a fixed position, and its tip protrudes near the hooking hole 5 in the winding drum 3 of the spool 2. The tip of the bending shaft 7 is formed into a bifurcated shape to sandwich the wire 1, and the bending shaft 7 is arranged so as to be rotatable by an external drive system (not shown) and reciprocated in the axial direction indicated by the arrow P or Q.
上記装置は次の要領で線材巻始め端掛止めを行
う。先ずホルダ６，６でスプール２を位置決め保
持した状態で折曲軸７を第２図に示す如く挿入
し、次に線材１を線材送り機構（図示せず）を介
してスプール外方より掛止孔５に向けて送給し、
直状の巻始め端部１′を掛止孔５を経て内部の折
曲軸７の二股先端部７′間へと挿通する。その後
折曲軸７を第３図矢印方向に約180°回転させて二
股先端部７′で挾んだ線材１の巻始め端部１′を掛
止孔５から抜脱しない大きさに巻き込み成形し、
そのまま折曲軸７をスプール２とホルダ６より抜
き出す。而る後第１図に示すようにホルダ６，６
でスプール２を矢印方向に回転させて巻胴３上へ
の線材１の整列巻きを開始する。 The above-mentioned device latches the starting end of wire rod winding in the following manner. First, with the spool 2 positioned and held by the holders 6, 6, the bending shaft 7 is inserted as shown in FIG. Send it towards 5,
The straight winding start end 1' is inserted through the locking hole 5 and between the bifurcated tips 7' of the bending shaft 7 inside. Thereafter, the bending shaft 7 is rotated approximately 180 degrees in the direction of the arrow in FIG. 3, and the winding start end 1' of the wire 1, which is held between the fork ends 7', is rolled and formed to a size that will not allow it to slip out from the locking hole 5. ,
Pull out the bending shaft 7 from the spool 2 and holder 6 as it is. Afterwards, as shown in FIG.
The spool 2 is rotated in the direction of the arrow to start winding the wire 1 onto the winding drum 3 in an aligned manner.
このような線材巻始め端掛止め装置は直状の線
材１をスプール２の掛止孔５に挿通した後線材先
端部を曲成加工して掛止孔５に引つ掛け、その直
後に整列巻きを始めるので、線材１の掛止孔５へ
の挿通が容易、工数的、設備的に有利である反
面、さらに解決すべき次の問題を含んでいた。即
ち、線材１の巻始め端部１′を曲成加工した後、
スプール２の回転により線材１が引つ張られる
と、掛止孔５に係止されるべき曲成加工部分が拡
つて掛止孔５から抜脱する恐れがあり、また抜脱
しない場合は掛止孔５に係止された部分が巻胴３
の外周面より少し浮き上がり気味になつてこれが
線材整列巻きの乱れの原因になることがあつた。
また曲成加工された線材巻始め端部１′が巻胴３
の内周面からの立ち上がり高が大のため、線材巻
回完了したスプール２を持ち運ぶ際に巻胴３内で
立ち上がつた線材巻始め端に手が触れて怪我をす
るといつた危険性があつた。 Such a wire rod winding start end latching device inserts a straight wire 1 into a latching hole 5 of a spool 2, bends the tip of the wire, hooks it into the latching hole 5, and aligns it immediately after that. Since winding is started, it is easy to insert the wire 1 into the hooking hole 5, which is advantageous in terms of man-hours and equipment, but on the other hand, there are the following problems that need to be solved. That is, after bending the winding start end 1' of the wire 1,
When the wire rod 1 is pulled due to the rotation of the spool 2, the curved part that should be locked in the locking hole 5 will expand and may come off from the locking hole 5. The part that is locked in the stop hole 5 is the winding drum 3
The wire tends to rise slightly from the outer circumferential surface of the wire, which sometimes causes disorder in the wire winding.
In addition, the bent wire rod winding start end 1' is connected to the winding drum 3.
Because the rising height from the inner peripheral surface of the wire rod is large, there is a risk of injury if your hand touches the rising end of the wire winding inside the winding drum 3 when carrying the spool 2 after wire winding is completed. It was hot.
ハ 発明の目的
本発明は上記問題点に鑑みなされたもので、金
属線材の直線状巻始め端部をスプール巻胴の掛止
孔を挿通してから掛止孔に引つ掛かり性良く且つ
巻胴内への立ち上がりを少なくして折曲加工する
線材の巻始め端掛止装置を提供することを目的と
する。C. Purpose of the Invention The present invention has been made in view of the above-mentioned problems, and it is possible to insert the linear winding start end of the metal wire through the hooking hole of the spool winding drum, and then hook the wire into the hooking hole with good ease and wind the wire. It is an object of the present invention to provide a winding start end hooking device for bending a wire rod while reducing its rise into a cylinder.
ニ 発明の構成
本発明はスプールの軸方向すなわち、線材巻回
平面と略直角の方向に、巻胴内周で囲まれる空間
へと進出し、回転可能な先端二股状の折曲軸と、
この折曲軸の先端部が線材巻始め端掛止め時に配
置されるスプールの筒状巻胴内周で囲まれる空間
に配置し、折曲軸から延びる直線状線材の巻始め
先端部が挿通される固定スリツト、及び折曲軸を
退出させた時に線材の折曲加工された巻始め端部
に弾性的に圧接するバネ材を配備した構造で、直
線状の線材巻始め先端部をスプール巻胴の掛止孔
から折曲軸、固定スリツトへと挿通した後、固定
スリツトに先端一部を残して折曲軸を定角度（約
90゜）回転させて線材巻始め先端部を略Ｚ状に折
曲加工し、その後折曲軸を退出させて線材折曲先
端部を押えバネ材で、掛止孔に弾性的に圧係止さ
せてその圧接方向と反対線材巻回方向にスプール
を回転させ、この回転により線材折曲端部を巻胴
内面へ倒して掛止孔に確実に引つ掛けるようにし
たことを特徴とする。このように折曲軸の近くに
固定スリツトと押えバネ材を配備することによ
り、線材の巻始め端部を略Ｚ字状に折曲して略Ｚ
字の一端を巻胴内面に沿わせ、中央を掛止孔に係
止させ、他端を巻胴外面に沿わせて自動的に掛止
めすることができる。このような線材の掛止め形
態は引つ掛かり性が安定し、巻胴内での立ち上が
り高が小さい利点を持つものであり、これにより
上記目的が達成される。D. Structure of the Invention The present invention includes a rotatable bifurcated bending shaft that extends in the axial direction of the spool, that is, in a direction substantially perpendicular to the wire winding plane, into a space surrounded by the inner periphery of the winding drum;
The tip of this bending shaft is placed in a space surrounded by the inner periphery of the cylindrical winding drum of the spool that is placed when the winding start end of the wire rod is latched, and fixed through which the winding start end of the straight wire extending from the bending shaft is inserted. The structure is equipped with a spring material that elastically presses against the bent winding start end of the wire rod when the slit and the bending shaft are withdrawn, and the straight wire rod winding start end is latched onto the spool winding drum. After inserting the bending shaft through the hole and the fixed slit, the bending shaft is held at a fixed angle (approximately
90°) to bend the tip of the wire at the beginning of winding into a Z-shape, after which the bending shaft is withdrawn and the bent tip of the wire is held down and elastically locked into the locking hole using a spring material. The spool is rotated in the wire winding direction opposite to the pressure welding direction, and by this rotation, the bent end of the wire is brought down to the inner surface of the winding drum and is securely hooked into the hooking hole. By arranging the fixed slit and the presser spring material near the bending axis in this way, the winding start end of the wire can be bent into an approximately Z-shape.
One end of the letter can be placed along the inner surface of the winding drum, the center can be locked in the latching hole, and the other end can be placed along the outside surface of the drum and latched automatically. This form of hooking the wire rod has the advantage of stable hooking properties and a small rising height within the winding drum, thereby achieving the above object.
ホ 実施例
上記スプール２へ線材１の巻き始め端を掛止す
る装置の実施例を、第５図乃至第９図を参照しな
がら説明する。第５図及び第６図において、８，
８′はスプール２を同軸に位置決め挾持して回転
させる一対のホルダ、９は一方のホルダ８に軸方
向すなわち線材巻回平面と略直角方向に形成した
貫通穴１６を貫通してスプール２の巻胴３内の掛
止孔５近傍に二股状先端部９′が突出する折曲軸
である。１０及び１１は折曲軸９側のホルダ８の
内面の２箇所に設置した固定スリツト及び押えバ
ネ材である。固定スリツト１０はホルダ８の内面
で、かつ巻胴３の内周で囲まれる空間に一定間隔
で突設した一対のブロツク１２，１２間に形成さ
れ、スリツト方向は位置決めされたスプール２の
巻胴３の掛止孔５、つまりスプールの半径方向に
向き、スリツト幅は線材１の巻始め端部１′が挿
通される程度に設定される。押えバネ材１１はホ
ルダ８内面の折曲軸突出部分の側方に配置され、
例えばホルダ８の内面定位置に固定したブロツク
１３の側方にスプリング１４とスライドバー１５
を介し定ストローク往復動可能に配置した押え板
で構成される。E. Example An example of a device for hooking the winding start end of the wire rod 1 to the spool 2 will be described with reference to FIGS. 5 to 9. In Figures 5 and 6, 8,
8' is a pair of holders for coaxially positioning and rotating the spool 2, and 9 is a pair of holders for rotating the spool 2 by passing through a through hole 16 formed in one of the holders 8 in the axial direction, that is, in the direction substantially perpendicular to the wire winding plane. It is a bent shaft with a bifurcated tip 9' protruding near the locking hole 5 in the body 3. Reference numerals 10 and 11 denote fixing slits and presser spring members installed at two locations on the inner surface of the holder 8 on the bending shaft 9 side. The fixed slit 10 is formed on the inner surface of the holder 8 between a pair of blocks 12, 12 that protrude at regular intervals in a space surrounded by the inner periphery of the winding drum 3, and the slit direction is aligned with the winding drum of the positioned spool 2. The latching hole 5 of No. 3 is oriented in the radial direction of the spool, and the width of the slit is set to such an extent that the winding start end 1' of the wire rod 1 can be inserted therethrough. The presser spring material 11 is arranged on the side of the bending shaft protruding part on the inner surface of the holder 8,
For example, a spring 14 and a slide bar 15 are attached to the sides of a block 13 fixed at a fixed position inside the holder 8.
It consists of a presser plate that is arranged so that it can reciprocate at a constant stroke.
次に上記実施例による線材巻回動作を説明す
る。先ず従来同様にしてスプール２をホルダ８，
８′で挾持し、折曲軸９を挿入してから第６図に
示すように外方より直線状線材１の巻始め端部
１′を掛止孔５から折曲軸９の二股先端部９′間に
通し更に固定スリツト１０まで挿通する。次に折
曲軸９を第７図矢印の時計方向に約90゜回転させ
て線材１の巻始め端部１′をその先端を固定スリ
ツト１０に残した状態で略Ｚ字状に折曲する。次
に折曲軸９をホルダ８から引抜き、ホルダ８，
８′でスプール２を折曲軸９と同じ時計方向に回
転させる。すると線材１は一方向から所定の張力
で引張られて延びているため、スプール２の回転
始動と共に先ず折曲された巻始め端部１′の先端
が固定スリツト１０から外れ、次に第８図に示す
ようにバネ材１１に当接して巻始め端部１′の２
つの折曲点ａ，ｂ間の段状部ｃが掛止孔５内面に
弾圧される。スプール２の回転が続行すると巻始
め端部１′は段状部ｃが掛止孔５に押圧係止され
たまま掛止孔５を支点に回動して押えバネ材１１
をスプリング１４に抗し後退させ、やがて押えバ
ネ１１から外れて先端が巻胴３内周面に当接し、
そのまま第９図に示すように巻始め端部１′は掛
止孔５の内外面に沿う如く掛止めされて巻胴３へ
の線材整列巻きが始まる。 Next, the wire winding operation according to the above embodiment will be explained. First, as in the conventional case, place the spool 2 in the holder 8,
8', insert the bending shaft 9, and as shown in FIG. and further through the fixing slit 10. Next, the bending shaft 9 is rotated approximately 90 degrees clockwise as indicated by the arrow in FIG. 7, and the winding start end 1' of the wire 1 is bent into a substantially Z-shape with the leading end remaining in the fixed slit 10. Next, pull out the bending shaft 9 from the holder 8,
At 8', rotate the spool 2 in the same clockwise direction as the bending shaft 9. Then, since the wire rod 1 is stretched from one direction with a predetermined tension, when the rotation of the spool 2 starts, the tip of the bent winding start end 1' first comes off from the fixed slit 10, and then the tip of the winding start end 1' comes off from the fixed slit 10, and then as shown in FIG. As shown in FIG.
The stepped portion c between the two bending points a and b is pressed against the inner surface of the locking hole 5. As the rotation of the spool 2 continues, the winding start end 1' rotates around the latching hole 5 as a fulcrum while the stepped portion c is pressed and latched to the latching hole 5, and presses the spring material 11.
is moved backward against the spring 14, and eventually comes off from the presser spring 11 and its tip comes into contact with the inner peripheral surface of the winding drum 3,
As shown in FIG. 9, the winding start end 1' is latched along the inner and outer surfaces of the latching hole 5, and alignment winding of the wire around the winding drum 3 begins.
上記動作において、固定スリツト１０は線材１
の巻始め端部１′を掛止孔５に沿う如き略Ｚ字形
状に折曲するため、必要であり、このような折曲
形状にして掛止孔５に掛止めすることにより巻胴
３内面での線材巻始め端の立ち上がり高が最小限
に規制でき安全である。また押えバネ材１１はス
プール２の回転時に線材１の折曲した巻始め端部
１′を積極的に掛止孔５に押し付けて、スプール
２の回転始動時に起こり易い線材抜脱を確実に防
止する。 In the above operation, the fixed slit 10
This is necessary because the winding start end 1' of the winding drum 3 is bent into a substantially Z-shape along the hooking hole 5. The rising height of the wire winding start end on the inner surface can be regulated to a minimum, making it safe. In addition, the presser spring material 11 actively presses the bent winding start end 1' of the wire rod 1 against the latch hole 5 when the spool 2 rotates, thereby reliably preventing the wire rod from coming off when the spool 2 starts rotating. do.
ヘ 発明の効果
以上の如く、本発明によれば線材巻始め端のス
プールの掛止性が常に安定して確実に得られ、信
頼性の良い線材巻始め端掛止装置が提供できる。
またスプールの巻胴内面での線材巻始め端の立ち
上がり高が小さくできるので、線材を巻回したス
プールの取扱い上の安全性が増し、またスプール
外観も良くなる。F. Effects of the Invention As described above, according to the present invention, it is possible to always stably and reliably secure the spool at the wire winding start end, and to provide a wire rod winding start end latching device with good reliability.
Furthermore, since the rising height of the starting end of the wire rod winding on the inner surface of the winding drum of the spool can be reduced, the handling safety of the spool wound with the wire rod is increased, and the spool appearance is also improved.
第１図及び第２図は本考案の前提となる線材巻
始め端掛止装置の要部正面図及びＡ−Ａ線に沿う
断面図、第３図及び第４図は第２図の一部の各動
作時での拡大断面図、第５図及び第６図は本発明
の一実施例となる巻始め端掛止装置を示す要部正
面図及びＢ−Ｂ線に沿う拡大断面図、第７図乃至
第９図はその装置の一部を各動作時点で示す要部
断面図である。
１……線材、１′……巻始め端部、２……スプ
ール、３……巻胴、５……掛止孔、９……折曲
軸、１０……固定スリツト、１１……押えバネ
材。
Figures 1 and 2 are a front view of the main parts of the wire rod winding start end latching device, which is the premise of the present invention, and a sectional view taken along line A-A, and Figures 3 and 4 are part of Figure 2. FIGS. 5 and 6 are enlarged sectional views at the time of each operation, and FIGS. 7 to 9 are sectional views of essential parts showing a part of the device at each operation point. 1... Wire rod, 1'... Winding start end, 2... Spool, 3... Winding drum, 5... Latching hole, 9... Bending shaft, 10... Fixed slit, 11... Presser spring material .
Claims (1)
置し、スプールの筒状巻胴に開口した掛止孔に外
部より挿通されて巻胴内に突出した金属線などの
線材の巻始め端部が挿入される固定スリツトと、 スプールの軸方向すなわち、線材巻回平面と略
直角の方向に、巻胴内周で囲まれる空間へと進出
して、上記固定スリツトと掛止孔間の巻始め端部
を挟み、回転させて略Ｚ状に折曲させる二股状の
折曲軸と、 上記折曲軸の側方に配置され、折曲軸を線材か
ら外したときに、折曲端部を弾性的に圧接する押
さえバネ材とを具備したことを特徴とする線材の
巻始め端掛止装置。[Scope of Claims] 1. A metal wire, etc., which is disposed in a space surrounded by the inner periphery of the cylindrical winding drum of the spool, and which is inserted from the outside into a latching hole opened in the cylindrical winding drum of the spool and projects into the winding drum. A fixed slit into which the winding start end of the wire rod is inserted; A bifurcated bending shaft that pinches the winding start end between the latching holes and rotates to bend it into an approximately Z shape; A winding start end latching device for a wire rod, characterized in that it comprises a presser spring material that elastically presses the curved end portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17662783A JPS6067375A (en) | 1983-09-24 | 1983-09-24 | Checking device for starting end in winding of wire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17662783A JPS6067375A (en) | 1983-09-24 | 1983-09-24 | Checking device for starting end in winding of wire |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6067375A JPS6067375A (en) | 1985-04-17 |
| JPH0124708B2 true JPH0124708B2 (en) | 1989-05-12 |
Family
ID=16016883
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17662783A Granted JPS6067375A (en) | 1983-09-24 | 1983-09-24 | Checking device for starting end in winding of wire |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6067375A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5517655A (en) * | 1978-07-22 | 1980-02-07 | Tetsushige Ito | Flon gas vaporizer by use of rotary frictional heat |
| JPS56161260A (en) * | 1980-05-19 | 1981-12-11 | Nippon Steel Weld Prod & Eng Co Ltd | Method for winding of welding wire round winding spool |
-
1983
- 1983-09-24 JP JP17662783A patent/JPS6067375A/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5517655A (en) * | 1978-07-22 | 1980-02-07 | Tetsushige Ito | Flon gas vaporizer by use of rotary frictional heat |
| JPS56161260A (en) * | 1980-05-19 | 1981-12-11 | Nippon Steel Weld Prod & Eng Co Ltd | Method for winding of welding wire round winding spool |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6067375A (en) | 1985-04-17 |
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