JPS6025341Y2 - Electrode roller shaping device - Google Patents
Electrode roller shaping deviceInfo
- Publication number
- JPS6025341Y2 JPS6025341Y2 JP1979118560U JP11856079U JPS6025341Y2 JP S6025341 Y2 JPS6025341 Y2 JP S6025341Y2 JP 1979118560 U JP1979118560 U JP 1979118560U JP 11856079 U JP11856079 U JP 11856079U JP S6025341 Y2 JPS6025341 Y2 JP S6025341Y2
- Authority
- JP
- Japan
- Prior art keywords
- roller
- holder
- blade
- electrode roller
- electrode
- 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
Landscapes
- Arc Welding In General (AREA)
Description
【考案の詳細な説明】
本考案は、シーム溶接機の電極ローラの周縁部を常に一
定の状態に維持するための電極ローラ整形装置に関する
ものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an electrode roller shaping device for always maintaining a peripheral edge of an electrode roller of a seam welding machine in a constant state.
シーム溶接機は、被溶接物を一対の電極ローラの間に挾
持し、これらの電極ローラを回転させつつ被溶接物を移
動・圧着させ、これにより被溶接物の溶着を行うもので
ある。A seam welding machine holds an object to be welded between a pair of electrode rollers, moves and presses the object while rotating these electrode rollers, and thereby welds the object.
したがって溶接動作が進行するにつれて、電極ローラの
周縁部は損耗し、これをそのまま放置すれば溶接品質が
低下するという欠点が存在した。Therefore, as the welding operation progresses, the peripheral edge of the electrode roller is worn out, and if this is left untreated, the welding quality deteriorates.
そこで従来は、損耗した電極ローラを整形するため第１
図に示すような電極ローラ整形装置が使用されていた。Therefore, conventionally, the first
An electrode roller shaping device as shown in the figure was used.
すなわち、−第１図において、電極ローラ１の周縁部１
ａに対して、刃物２が電極ローラ１の中心へ向って前後
動（Ａ−Ａ’力方向できるように配設され、電極ローラ
１をＢ方向へ回転させると共に刃物２をＡ方向へ移動し
て周縁部１ａに圧接し、これにより、損耗した周縁部１
ａを切削するのである。That is, - in FIG. 1, the peripheral edge 1 of the electrode roller 1
With respect to a, the blade 2 is arranged so that it can move back and forth toward the center of the electrode roller 1 (A-A' force direction), and the electrode roller 1 is rotated in the B direction and the blade 2 is moved in the A direction. This causes the worn peripheral edge 1 to come into pressure contact with the peripheral edge 1a.
This is to cut a.
刃物２は刃物保持具３に固定され、刃物保持具３はボル
ト１５，１６によってホルダ４に取り付けられている。The knife 2 is fixed to a knife holder 3, and the knife holder 3 is attached to a holder 4 with bolts 15 and 16.
ホルダ４はホルダガイド５にＡ−Ａ’力方向摺動自在に
保持され、また、ホルダ４は流体シリンダ装置６のロッ
ド−６ａに連結されている。The holder 4 is held by a holder guide 5 so as to be slidable in the A-A' force direction, and the holder 4 is connected to a rod 6a of a fluid cylinder device 6.
そして、流体シリンダ装置６の２つの作動流体給排ボー
）６ｂ、６ｃは流路切換弁７、調圧弁８を介して作動流
体供給源９に連結されている。Two working fluid supply/discharge ports 6b and 6c of the fluid cylinder device 6 are connected to a working fluid supply source 9 via a flow path switching valve 7 and a pressure regulating valve 8.
そして、上記した従来装置においては、作動流体供給源
９から送給された作動流体が調圧弁８（主として、減圧
弁）により一定の圧力に調圧され、流路切換弁７を経て
流体シリンダ装置６のボート６ｃ内へ流入すると、ロッ
ド６ａは電極ローラ１方向（Ａ方向）へ前進し、刃物２
は電極ローラ１の周縁部１ａに調圧弁８で設定された一
定の圧着力で圧接する。In the conventional device described above, the working fluid supplied from the working fluid supply source 9 is regulated to a constant pressure by the pressure regulating valve 8 (mainly a pressure reducing valve), and then passed through the flow path switching valve 7 to the fluid cylinder device. When the rod 6a flows into the boat 6c of No. 6, the rod 6a moves forward in the direction of the electrode roller 1 (direction A), and
is pressed against the peripheral edge 1a of the electrode roller 1 with a constant pressing force set by the pressure regulating valve 8.
ここで、電極ローラ１をＢ方向へ回動さぜれば刃物２は
周縁部１ａを切削し損耗部分を除去し整形を行う。Here, when the electrode roller 1 is rotated in the direction B, the blade 2 cuts the peripheral edge 1a, removes the worn portion, and performs shaping.
そして、整形が終了すれば流路切換弁７を手動又は自動
で切換えて、作動流体をポート６ｂへ流入させ、刃物２
を周縁部１ａから離脱させるのである。When shaping is completed, the flow path switching valve 7 is switched manually or automatically to allow the working fluid to flow into the port 6b, and the cutter 2
is separated from the peripheral edge portion 1a.
上記した従来装置においては、刃物２の周縁部１ａへの
圧着力は調圧弁８の設定圧力で決定されるわけであるが
、この調圧弁８の圧力設定は極めて困難で熟練を要し、
多くの場合、その圧力を高めに設定することが多い。In the conventional device described above, the pressing force of the blade 2 to the peripheral edge 1a is determined by the set pressure of the pressure regulating valve 8, but setting the pressure of the pressure regulating valve 8 is extremely difficult and requires skill.
In many cases, the pressure is often set high.
このため、刃物２の切込み量は必要以上に多くなり、電
極ローラ２の消耗を早めるという欠点を生じた。For this reason, the depth of cut of the blade 2 becomes larger than necessary, resulting in the disadvantage that the electrode roller 2 wears out more quickly.
本考案の目的は、調圧弁の圧力を多少高めに設定しても
、刃物の切込量が必要以上に多くならないようにするこ
とにより、電極ローラの消耗を最小限にし得る電極ロー
ラ整形装置を提供することにある。The purpose of this invention is to provide an electrode roller shaping device that can minimize electrode roller wear by preventing the cutting depth of the blade from becoming larger than necessary even if the pressure of the pressure regulating valve is set a little higher. It is about providing.
本考案は上記の問題点を解決する手段として、流体シリ
ンダ装置に固着されたホルタ−ガイドと、ホルダーガイ
ドにシーム溶接機の電極ローラの周縁部に対して離反・
接近する方向へ摺動自在に嵌合しかつ流体シリンダ装置
のシリンダロッドに連結されたホルダと、ホルダに電極
ローラの方向に変位調整可能に設けられた先端部に電極
整形用刃物が固着された刃物保持具と、ホルダに刃物保
持具と独立して電極ローラの方向へ変位調整可能に設け
られ先端部に切込量調整用ローラが回転自在に装着され
たローラ支持具と、先端がローラ支持具の基端面に当接
し該ローラ支持具を電極ローラの方向へ変位せしめる押
しボルトからなるように構成したものである。As a means to solve the above-mentioned problems, the present invention has a Holter guide fixed to a fluid cylinder device, and a holder guide that is separated from the periphery of the electrode roller of a seam welding machine.
A holder that is slidably fitted in the direction of approach and connected to the cylinder rod of the fluid cylinder device, and an electrode shaping cutter is fixed to the tip of the holder that is adjustable in displacement in the direction of the electrode roller. A blade holder, a roller support provided in the holder so that its displacement can be adjusted in the direction of the electrode roller independently of the blade holder, and a roller for adjusting the cutting amount rotatably attached to the tip, and a roller support whose tip is rotatably attached. It is constructed of a push bolt that comes into contact with the proximal end surface of the tool and displaces the roller support in the direction of the electrode roller.
以下、本考案の一実施例を第２図及び第３図に基づいて
説明する。An embodiment of the present invention will be described below with reference to FIGS. 2 and 3.
電極ローラ２０の周縁部２０ａに対向する位置に電極整
形用の刃物２１が配設され、この刃物２１は刃物保持具
２２に固定されている。A blade 21 for shaping the electrode is disposed at a position facing the peripheral edge 20a of the electrode roller 20, and this blade 21 is fixed to a blade holder 22.
刃物保持具２２はボルト２３．２４によってホルダ２５
に固定され、ボルト２３．２４をゆるめることにより、
Ａ−Ａ’力方向変位調整可能に設けられているホルダ２
５はホルダーガイド２６に摺動自在に嵌合し該ホルダー
ガイド２６に案内されてＡ−Ａ′方向へ移動自在である
。The knife holder 22 is attached to the holder 25 by bolts 23 and 24.
By loosening bolts 23 and 24,
A-A' Holder 2 provided so that displacement in the force direction can be adjusted
5 is slidably fitted into the holder guide 26 and is guided by the holder guide 26 to be freely movable in the direction AA'.
ホルダ２５の上面にはローラ支持具２７が長孔２７ａ、
２７ｂを介してボルト２８．２９により取り付けられて
いる。On the upper surface of the holder 25, a roller support 27 is provided with a long hole 27a,
It is attached by bolts 28, 29 via 27b.
ローラ支持具２７の先端部には、電極ローラ２０の周縁
部２０ａに嵌合する形状の環状溝３０ａを有する切込量
調整用のローラ３０が回転自在に取り付けられ、また、
ローラ支持具２７の後端面Ｃ基端面）２７Ｃには、ホル
ダー２５に対しローラ支持具２７をＡ−Ａ’力方向変位
せしめる押しボルト３１の先端が当接している。A cutting amount adjusting roller 30 having an annular groove 30a shaped to fit into the peripheral edge 20a of the electrode roller 20 is rotatably attached to the tip of the roller support 27, and
The tip of a push bolt 31 that displaces the roller support 27 relative to the holder 25 in the A-A' force direction is in contact with the rear end surface (base end surface) 27C of the roller support 27 .
押しボルト３１は、ボルト３２によってホルダ２５に固
定された押し板３３に螺合しロックナツト３４により固
定されている。The push bolt 31 is screwed into a push plate 33 fixed to the holder 25 by a bolt 32 and fixed by a lock nut 34.
すなわち、切込量調整用のローラ３０は押しボルト３１
を操作することにより、電極ローラ２０の周縁部２０ａ
に向けて、刃物２１のホルタ２５に対する移動とは独立
して、該ホルダ２５に対し変位調整し得るように設けら
れている。That is, the roller 30 for adjusting the depth of cut is the push bolt 31.
By operating the peripheral edge 20a of the electrode roller 20,
The blade 21 is provided so as to be able to adjust its displacement relative to the holder 25 independently of movement of the cutter 21 relative to the holder 25.
ホルダーガイド２６には流体シリンダ装置３５が固定さ
れ、そのシリンダロッド３５ａはホルダ２５に連結され
ている。A fluid cylinder device 35 is fixed to the holder guide 26, and its cylinder rod 35a is connected to the holder 25.
そして、流体シリンダ装置３５の２つの作動流体給排ポ
ート３５ｔ ３５ｃは、それぞれ流路切換弁３６に連
結され、流路切換弁３６は調圧弁３７を介して作動流体
供給源３８に連結されている。The two working fluid supply/discharge ports 35t and 35c of the fluid cylinder device 35 are each connected to a flow path switching valve 36, and the flow path switching valve 36 is connected to a working fluid supply source 38 via a pressure regulating valve 37. .
なお、流路切換弁３６が自動的に切換えるためにタイマ
ー若しくはカウンターがこの切換弁３６に接続されてい
る。Note that a timer or counter is connected to the flow path switching valve 36 so that the flow path switching valve 36 automatically switches.
以下、作用を説明する。The action will be explained below.
先づ、ロックナツト３４をゆるめて押しボルト３１をＡ
′方向へ移動させ、更に、ボルト２８゜２９をゆるめて
ローラ支持具２７をその長孔２７ａ、２７ｂの限度まで
Ａ′方向へ移動する。First, loosen the lock nut 34 and tighten the push bolt 31 to A.
Then, by loosening the bolts 28 and 29, the roller support 27 is moved in the A' direction to the limit of its elongated holes 27a and 27b.
そして、作動流体供給源３８を作動させて調圧弁３０を
予め設定し、流路切換弁３６を手動で操作して流体シリ
ンダ装置３５のシリンダ陥ツド３５ａをＡ方向へ伸長さ
せる。Then, the working fluid supply source 38 is activated to preset the pressure regulating valve 30, and the flow path switching valve 36 is manually operated to extend the cylinder recess 35a of the fluid cylinder device 35 in the A direction.
すると、ホルダーガイド２６に案内されてホルダ２５と
、それに取り付けられている刃物保持具２２及び刃物２
１が電極ローラ２０の回転中心に向って前進し、刃物２
１は周縁部２０ａに押圧される。Then, the holder 25, the blade holder 22 and the blade 2 attached to it are guided by the holder guide 26.
1 advances toward the center of rotation of the electrode roller 20, and the blade 2
1 is pressed against the peripheral edge portion 20a.
一方電極ローラ２０はＢ方向に回転しているから、刃物
２１は調圧弁３７の設定圧力によって周縁部２０ａに圧
着し、これを切削する。On the other hand, since the electrode roller 20 is rotating in the direction B, the blade 21 is pressed against the peripheral edge 20a by the set pressure of the pressure regulating valve 37 and cuts it.
この設定圧力による切削中において、刃物２１にびびり
が生じたり、刃物２１又は電極ローラ２０の周縁部２０
ａとホルダ２５の先端部との間に切粉が付着し、電極ロ
ーラ２０の周縁部２０ａの切削が困難となり、刃物２１
のホルタ２５からの突出し量を調整する必要が生じたな
らば、再びホルダ２５を電極ローラ２０に対し離反させ
、ボルト２３．２４をゆるめて刃物保持具２２をＡ−Ａ
’力方向適当位置まで変位させて固定し、刃物２１のホ
ルダ２５からの突出し量を調整すれはよい。During cutting with this set pressure, vibration may occur in the blade 21 or the peripheral edge 20 of the blade 21 or the electrode roller 20 may
Chips adhere between the tip of the electrode roller 20 and the tip of the holder 25, making it difficult to cut the peripheral edge 20a of the electrode roller 20.
If it becomes necessary to adjust the amount of protrusion from the holder 25, move the holder 25 away from the electrode roller 20 again, loosen the bolts 23 and 24, and move the blade holder 22 from A to A.
It is sufficient to displace and fix the cutter 21 to an appropriate position in the force direction and adjust the amount of protrusion of the cutter 21 from the holder 25.
次に、押しホルト３１をＡ方向に移動させて、ローラ支
持具２７を電極ローラ２０の方向へ前進させ、ローラ３
０を周縁部２０ａに当接させる。Next, the push holder 31 is moved in the direction A, the roller support 27 is advanced in the direction of the electrode roller 20, and the roller 3
0 is brought into contact with the peripheral edge portion 20a.
そして、刃物２１の切込量を必要最小限になるだけ押ボ
ルト３１を前進させた後、ロックナツト３４を締めて更
にボルト２８．２９を締め、ローラ支持具２７の位置を
固定する。After advancing the push bolt 31 by an amount that minimizes the depth of cut of the blade 21, the lock nut 34 is tightened and the bolts 28 and 29 are further tightened to fix the position of the roller support 27.
これにより、刃物２１は必要最小限の切込量で電極ロー
ラ２０を切削することになる。Thereby, the blade 21 cuts the electrode roller 20 with the minimum necessary cutting depth.
このようにして、刃物２１の切込量を設定した後、被溶
接物を一対の電極ローラの間に挾持して溶接作業が行な
われる。After setting the depth of cut of the blade 21 in this way, the workpiece to be welded is held between a pair of electrode rollers and the welding operation is performed.
この場合、タイマー若しくはカウンターにより流路切換
弁３６を適宜切換えて定期的に流体シリンタ′装置３５
のシリンダロッド３５ａをＡ−Ａ’力方向伸長あるいは
後退せしめて電極ローラ２０を切削するようにすれば、
電極寿命を極端に延長させることができる。In this case, the flow path switching valve 36 is appropriately switched using a timer or a counter, and the fluid cylinder' device 35 is periodically operated.
If the electrode roller 20 is cut by extending or retracting the cylinder rod 35a in the A-A' force direction,
The electrode life can be extremely extended.
しかし、電極ローラ２０が消耗してその外径が小さくな
ると、ローラ３０と周縁部２０ａとの接触がなくなり、
刃物２１の切込量は増加する。However, when the electrode roller 20 wears out and its outer diameter becomes smaller, the contact between the roller 30 and the peripheral edge 20a is lost.
The depth of cut of the blade 21 increases.
従って、適当な時期にホット２８．２９をゆるめ、押ホ
ルト３１をＡ方向へ移動して、ローラ３０を周縁部２０
ａとの当接状態を調整する。Therefore, loosen the hot springs 28 and 29 at an appropriate time, move the holding bolt 31 in the direction A, and move the roller 30 to the peripheral edge 20.
Adjust the contact state with a.
このｉ［ｌ−Ｍローラ整形装置においては、ホルダ２５
に、刃物保持具２２とローラ支持具２７とを互いに独立
して電極ローラ２０の方向へ変位調整可能に装着し、か
つ、前記ローラ支持具２７をその後端より押しボルト３
１て押動して変位せしめるように構成したので、電極ロ
ーラ２０の周縁部２０ａを刃物２１て切削している最中
であっても、押しボルト３１でローラ３０を電極ローラ
２０の方向へ変位させることにより、刃物２１の前記周
縁部２０ａへの切込量を変えることができ、刃物２１の
切込量の微妙な調整を短時間のうちに容易に行うことが
できる。In this i [l-M roller shaping device, the holder 25
The blade holder 22 and the roller support 27 are mounted so that their displacement can be adjusted independently of each other in the direction of the electrode roller 20, and the roller support 27 is inserted from the rear end of the push bolt 3.
Since the roller 30 is moved in the direction of the electrode roller 20 with the push bolt 31, even when the peripheral edge 20a of the electrode roller 20 is being cut with the blade 21, the roller 30 can be displaced in the direction of the electrode roller 20. By doing so, the amount of cut into the peripheral edge portion 20a of the blade 21 can be changed, and delicate adjustments to the amount of cut of the blade 21 can be easily made in a short time.
また、溶接作業中に刃物２１の消耗等により該刃物２１
の切込量が変化した場合でも、そのまま押しボルト３１
でローラ３０をＡ′方向へ変位させることにより、溶接
作業を中断することなく、刃物２１の切込量を適宜調整
することができ、生産性が向上するという利点もある。In addition, due to wear and tear of the blade 21 during welding work, the blade 21 may
Even if the depth of cut changes, the push bolt 31 remains unchanged.
By displacing the roller 30 in the A' direction, the depth of cut of the blade 21 can be appropriately adjusted without interrupting the welding operation, which has the advantage of improving productivity.
第２図に示すように、刃物保持具２２を電極ローラ２０
の中心に向けて装着し、かつ、ローラ支持具２７を刃物
保持具２２と平行に装着した場合、ローラ支持具２７を
刃物保持具２２に対してできるだけ近づけて配設すれば
、刃物２１の切込量を次に調整するまでの時間間隔を、
大幅に延ばすことができる。As shown in FIG. 2, the blade holder 22 is attached to the electrode roller 20.
When the roller support 27 is installed parallel to the blade holder 22, the roller support 27 can be placed as close to the blade holder 22 as possible to prevent the blade 21 from cutting. Set the time interval until the next adjustment of the amount of filling.
can be extended significantly.
本考案において、刃物保持具とローラ支持具とはそれぞ
れ、ホルダに対して互いに独立して電極ローラの方向へ
変位調整できる構成てあればよく、電極ローラの形状・
大きさ、溶接条件等に応じてホルタに任意に装着できる
。In the present invention, the blade holder and the roller support only need to be configured so that their displacement can be adjusted in the direction of the electrode roller independently of each other with respect to the holder.
It can be attached to the holter as desired depending on the size, welding conditions, etc.
例えば、刃物保持具とローラ支持具とを共に、電極ロー
ラの中心に向けてホルダに装着してもよい。For example, both the blade holder and the roller support may be attached to the holder so as to face the center of the electrode roller.
以上説明したように、本考案の電極ローラ整形装置によ
れば、常に適正な切削条件で刃物の切込量を最小限に維
持することができるから、電極ローラの消耗を最小限に
し得るという効果を発生すると共に、電極ローラの被溶
接物との接触面を常に清潔に保ち得るので、溶接品質の
一定化に大きな効果を生ずる。As explained above, according to the electrode roller shaping device of the present invention, the depth of cut of the blade can always be kept to a minimum under appropriate cutting conditions, so the wear and tear of the electrode roller can be minimized. At the same time, the contact surface of the electrode roller with the object to be welded can be kept clean at all times, which has a great effect on stabilizing welding quality.
また、本考案によれば、刃物で電極ローラを切削しなが
ら、押しボルトで切込量調整用ローラを電極ローラの方
向へ変位させて、刃物の切込量の調整を行うので切込量
の微妙な調整を誰でも短時間のうちに容易に行うことが
できる。Further, according to the present invention, while cutting the electrode roller with the blade, the depth of cut adjustment roller is displaced in the direction of the electrode roller using the push bolt to adjust the depth of cut of the blade. Anyone can easily make subtle adjustments in a short time.
第１図は従来装置の正面図、第２図は本考案装置の正面
図、第３図は第２図の■−■力向矢視図である。
２０・・・・・・電極ローラ、２０ａ・・・・・・周縁
部、２１・・・・・・刃物、２２・・・・・・刃物保持
具、２５・・・・・・ホルダ、２６・・・・・・ホルダ
ーガイド、２７・・・・・田−ラ支持Ｌ２８？２９・・
・・・・ボルト、３０・・・・・・ローラ、３１・・・
・・・押しボルト、３５流体シリンダ装置。FIG. 1 is a front view of the conventional device, FIG. 2 is a front view of the device of the present invention, and FIG. 3 is a view taken along the line - ■ force direction arrow in FIG. 20... Electrode roller, 20a... Peripheral portion, 21... Blade, 22... Blade holder, 25... Holder, 26 ...Holder guide, 27...Tara support L28?29...
...Bolt, 30...Roller, 31...
...Push bolt, 35 fluid cylinder device.
Claims (1)
ルダーガイドにシーム溶接機の電極ローラの周縁部に対
して離反・接近する方向へ摺動自在に嵌合し、かつ、前
記流体シリンダ装置のシリンダロッドに連結されたホル
ダと、該ホルダに前記電極ローラの方向へ変位調整可能
に設けられ先端部に電極整形用刃物が固着された刃物保
持具と、前記ホルダに前記刃物保持具と独立して前記電
極ローラの方向へ変位調整可能に設けられ先端部に切込
量調整用ローラが回転自在に装着されたローラ支持具と
、先端が該ローラ支持具の基端面に当接し該ローラ支持
具を電極ローラの方向へ変位せしめる押しボルトとから
なることを特徴とする電極ローラ整形装置。a holder guide fixed to a fluid cylinder device; a cylinder rod of the fluid cylinder device; a holder connected to the holder, a blade holder provided on the holder so as to be adjustable in displacement in the direction of the electrode roller and having an electrode shaping blade fixed to the tip thereof; A roller support whose displacement can be adjusted in the direction of the electrode roller, and a roller for adjusting the cutting amount is rotatably attached to the tip of the roller support; An electrode roller shaping device comprising a push bolt for displacing the roller in the direction of the roller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1979118560U JPS6025341Y2 (en) | 1979-08-29 | 1979-08-29 | Electrode roller shaping device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1979118560U JPS6025341Y2 (en) | 1979-08-29 | 1979-08-29 | Electrode roller shaping device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5640888U JPS5640888U (en) | 1981-04-15 |
| JPS6025341Y2 true JPS6025341Y2 (en) | 1985-07-30 |
Family
ID=29350770
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1979118560U Expired JPS6025341Y2 (en) | 1979-08-29 | 1979-08-29 | Electrode roller shaping device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6025341Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10202369A (en) * | 1997-01-23 | 1998-08-04 | Dengensha Mfg Co Ltd | Seam welding method and equipment for galvanized steel sheet |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2561570B2 (en) * | 1991-05-05 | 1996-12-11 | 株式会社酒井鉄工所 | Permanent form made of fiber reinforced resin for concrete slab, construction method of concrete slab, and fiber reinforced resin-reinforced concrete composite slab |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4425559Y1 (en) * | 1967-02-22 | 1969-10-27 | ||
| JPS52133051A (en) * | 1976-04-30 | 1977-11-08 | Kito Kogyo Kk | Means for dressing electrode rollers |
-
1979
- 1979-08-29 JP JP1979118560U patent/JPS6025341Y2/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10202369A (en) * | 1997-01-23 | 1998-08-04 | Dengensha Mfg Co Ltd | Seam welding method and equipment for galvanized steel sheet |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5640888U (en) | 1981-04-15 |
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