【発明の詳細な説明】[Detailed description of the invention]
本発明は鋼帯溶接用フラツシユバツト溶接機の
吸引装置の改良に関する。
従来鋼帯溶接用フラツシユバツト溶接機には雰
囲気吸引装置はなく、フラツシユスパツター屑、
溶接ビード屑、酸化鉄粉などが機械周辺に散乱し
て、機械の稼動に悪影響を与えていた。これらの
対策としては作業休止時に人力による清掃しなか
つた。最近新型の溶接機でフラツシユバツト溶接
時に溶接部近傍をカバーで囲つて雰囲気を吸引す
るものが現われたが、フラツシユバツト溶接時以
外の時間帯もその侭吸引を続けており、無駄な空
気を吸引してエネルギー損失を生ずるのみとなつ
ている。一方、溶接部以外の機構周辺にスパツタ
ー屑、溶接ビード屑等が散乱することは従来と同
様であるから、清掃は矢張人力によらねばならな
くなつている。
本発明はこれらの問題を有利に解決すべく、鋼
帯溶接用フラツシユバツト溶接機の吸引装置に改
良を施したもので、フラツシユバツト溶接時は溶
接部近傍の雰囲気を吸引し、その他の時間帯は移
動台走行面、電極面など溶接部以外の機構の近傍
の雰囲気を吸引すべき自動制御装置を具備するこ
とを特徴とするものである。
本発明を行なえば、雰囲気吸引送風機の無駄な
運転が排除でき、清掃作業者の省力になるのみな
らず、溶接機及び周辺の環境が常に清浄に保たれ
るため、溶接機作動の安定化、機械部品の長寿命
化に効果がある。
実施例
第１図はフラツシユバツト溶接時の本発明装置
全体の説明図であつて、１は吸引及び押込送風
機、２は下部に堆積物排出口４を有する粗粒セパ
レータ、３は下部に堆積物排出口４′を有し上部
に清浄空気排気孔５を有する微粒過器、６はメ
インダクトであつて数個の支管ダクト７，７′，
７″に分岐し、各支管ダクト７，７′，７″は夫々
エアシリンダー１１，１１′，１１″によつて作動
する開閉ダンパー８，８′，８″を備え、夫々フレ
キシブルホース９，９′，９″を介して雰囲気を吸
引すべきカバー１２，１２′，１２″に連結してい
る。第１図の場合はフラツシユバツト溶接中の状
況を示すもので、この場合開閉ダンパー８だけが
開となり他のダンパー８′，８″はすべて閉となつ
ている。送風機１は作動してカバー１２に囲まれ
た溶接部近傍１３の雰囲気を吸引するので、溶接
部１３で発生するスパツター屑、溶接ビード屑、
酸化鉄粉などを残らず巻き込んで吸引し、フレキ
シブルホース９、支管ダクト７、開閉ダンパー
８、メインダクト６を経て粗粒セパレータ２で粗
屑を分離し下部の堆積物排出口４から排出させ、
危険な粗屑を取除いた空気が送風機１内へ吸入せ
られ、更に押出されて微粒過器３に於て微粒屑
を分離し下部の堆積物排出口４′から排出させ清
浄となつた空気は上部の排気孔５から排出され
る。
即ち、第１図の場合はフラツシユバツト溶接中
でスパツター屑、ビード屑等が最も多発する時期
であるが上記の操作によりこれらが全然周辺へ散
乱しない効果がある。
第２図は移動台が移動してフラツシユバツト溶
接位置へ進入し或は退去する移動台移動中の場合
を示すもので、この場合は移動台走行面１３′に
スパツター屑、ビード屑等の障害物が存在すると
移動台の走行移動が円滑に行われず正規の位置へ
到達しないため作業に支障を来たすことがあるの
で移動台走行面の障害物は常に排除される必要が
あり、然かもフラツシユバツトのスパツター屑、
ビード屑等は最も散乱し易い場所である。第２図
の場合はこの移動台走行面１３′をカバー１２′で
囲み、フレキシブルホース９′、支管ダクト７′を
経てメインダクト６に連結し、エアシリンダー１
１′を作動させて開閉ダンパー８′を開とし、他の
開閉ダンパー８，８″を全部閉にした場合を示す
ものである。
即ち第２図の場合は溶接時以外の移動台移動中
の時間帯の送風機１を有効に活用すべく移動台走
行面の雰囲気を吸引し移動台走行面の清掃を行う
状況を示すもので、設備の有効利用と清掃要員の
省力化に効果があるものである。
第３図はフラツシユバツト溶接作業を終り、移
動台が待機の位置へ移動退去し終り、次期の溶接
作業を待機の期間中の場合を示すもので、この場
合は電極面１３″近傍の雰囲気をカバー１２″で囲
み、フレキシブルホース９″、支管ダクト７″を経
てメインダクト６に連結し、エアシリンダー１
１″を作動させて開閉ダンパー８″を開とし、他の
ダンパー８，８′を全部閉にした場合を示すもの
である。
電極面１３″を含む溶接部近傍１３は第１図示
の溶接時間帯にも雰囲気を吸引清掃されるのであ
るが、この場合は吸引範囲が広いので電極面１
３″に集中することはできないからフラツシユバ
ツト溶接中及び移動台移動中を於いた待機中を活
用して徹底的に電極面１３″の清掃を行うもので
ある。
以上のすべての作動即ち避退移動台の溶接位置
への進入移動、フラツシユバツト溶接上の諸動
作、溶接作業終了後の移動台の避退移動、エアシ
リンダー１１，１１′，１１″の作動による支管ダ
クト７，７′，７″開閉ダンパー８，８′，８″の作
動等はすべて自動制御装置１０の指令によつて行
うものでありその制御の１例を下記に表示する。
The present invention relates to an improvement in a suction device for a flash butt welder for welding steel strips. Conventional flash butt welding machines for welding steel strips do not have atmosphere suction devices, and flash sputter waste,
Welding bead debris, iron oxide powder, etc. were scattered around the machine, adversely affecting machine operation. As a countermeasure, we did not perform manual cleaning during work stoppages. Recently, new types of welding machines have appeared that surround the welding area with a cover during flash butt welding to suck out the atmosphere, but the suction continues even during times other than flash butt welding, sucking in unnecessary air. This only results in energy loss. On the other hand, since spatter debris, weld bead debris, etc. are scattered around the mechanism other than the welded parts, as in the past, cleaning has become necessary to be done manually. In order to advantageously solve these problems, the present invention improves the suction device of a flat butt welding machine for steel strip welding.The present invention sucks the atmosphere near the welding part during flat butt welding, and during other times the machine is moved. It is characterized by being equipped with an automatic control device that sucks the atmosphere near mechanisms other than the welding part, such as the carriage surface and the electrode surface. By carrying out the present invention, unnecessary operation of the atmosphere suction blower can be eliminated, which not only saves the labor of cleaning workers, but also keeps the welding machine and the surrounding environment clean at all times, which stabilizes the operation of the welding machine. Effective in extending the life of mechanical parts. Embodiment FIG. 1 is an explanatory diagram of the entire apparatus of the present invention during flash butt welding, in which 1 is a suction and forced air blower, 2 is a coarse separator with a deposit discharge port 4 at the bottom, and 3 is a deposit discharge port at the bottom. A fine particle filter having an outlet 4' and a clean air exhaust hole 5 at the top, 6 is a main duct, and several branch ducts 7, 7',
7'', each branch duct 7, 7', 7'' is equipped with an opening/closing damper 8, 8', 8'' operated by an air cylinder 11, 11', 11'', respectively, and a flexible hose 9, 9, respectively. The cover 12, 12', 12'' is connected to the cover 12, 12', 12'' through which the atmosphere is to be drawn. The case in Figure 1 shows the situation during flash butt welding. In this case, only the opening/closing damper 8 is open and the other dampers 8' and 8'' are all closed. Since the atmosphere near the surrounded welding part 13 is sucked, spatter debris, weld bead debris, etc. generated in the welding part 13 are removed.
All iron oxide powder and the like are drawn in and suctioned, passed through the flexible hose 9, branch duct 7, opening/closing damper 8, and main duct 6, and the coarse particles are separated by the coarse separator 2 and discharged from the sediment discharge port 4 at the bottom.
The air from which dangerous coarse particles have been removed is sucked into the blower 1, and further pushed out, the fine particles are separated in the particle filter 3, and the air is discharged from the sediment discharge port 4' at the bottom, resulting in clean air. is discharged from the upper exhaust hole 5. That is, in the case of FIG. 1, spatter debris, bead debris, etc. are most likely to occur during flash butt welding, but the above operation has the effect of not scattering these debris to the surrounding area at all. Figure 2 shows a case in which the movable base is moving to enter or leave the flash butt welding position, and in this case, there are obstacles such as spatter debris and bead debris on the movable base running surface 13'. If there are obstacles, the moving platform will not move smoothly and will not reach the correct position, which may hinder work. Therefore, it is necessary to always remove obstacles from the moving surface of the moving platform. waste,
This is the place where bead debris etc. are most likely to be scattered. In the case of FIG. 2, this movable carriage running surface 13' is surrounded by a cover 12', connected to the main duct 6 via a flexible hose 9' and a branch duct 7', and an air cylinder 1
1' is operated to open the opening/closing damper 8', and the other opening/closing dampers 8, 8'' are all closed. In other words, in the case of Fig. 2, when the movable table is moving other than during welding, This shows the situation in which the air blower 1 during the time period is used effectively to vacuum the atmosphere on the moving platform running surface and clean the moving platform running surface, which is effective in effectively using equipment and saving the labor of cleaning personnel. Figure 3 shows a case where the flash butt welding work has been completed, the moving table has moved to the standby position, and is now waiting for the next welding work. In this case, the atmosphere near the electrode surface 13'' is surrounded by a cover 12'', connected to the main duct 6 via a flexible hose 9'' and a branch duct 7'', and connected to the air cylinder 1.
1'' is operated to open the opening/closing damper 8'', and the other dampers 8 and 8' are all closed. The vicinity of the welding part 13 including the electrode surface 13'' is cleaned by suctioning the atmosphere during the welding period shown in the first diagram, but in this case, since the suction range is wide, the electrode surface 1
Since it is not possible to concentrate on the electrode surface 13'', the electrode surface 13'' is thoroughly cleaned using the standby period during flash butt welding and while the moving table is being moved. All of the above operations include the movement of the evacuation table into the welding position, various operations during flash butt welding, the evacuation movement of the movement table after the welding work is completed, and the branch pipes due to the operation of air cylinders 11, 11', and 11''. The operations of the ducts 7, 7', 7'' opening/closing dampers 8, 8', 8'' are all performed by commands from the automatic control device 10, and an example of such control is shown below.
【表】
フラツシユバツト溶接時以外に雰囲気を吸引す
べき場所は移動台走行面１３′、電極面１３″に限
るものでないことは勿論である。[Table] Of course, the locations where the atmosphere should be sucked other than during flash butt welding are not limited to the movable carriage running surface 13' and the electrode surface 13''.
【図面の簡単な説明】[Brief explanation of the drawing]
第１図はフラツシユバツト溶接時の本発明全体
の説明図、第２図は移動台が移動中の状況を説明
する部分図、第３図は待機中の状況を説明する部
分図である。
１……吸引および押込送風機、２……粗粒セパ
レータ、３……微粒過器、４，４′……堆積物
排出口、５……清浄空気排気孔、６……メインダ
クト、７，７′，７″……支管ダクト、８，８′，
８″……開閉ダンパー、９，９′，９″……フレキ
シブルホース、１０……自動制御装置、１１，１
１′，１１″……エアシリンダー、１２，１２′，
１２″……カバー、１３……溶接部、１３′……移
動台走行面、１３″……電極面。
FIG. 1 is an explanatory diagram of the entire present invention during flash butt welding, FIG. 2 is a partial diagram illustrating a situation in which the movable table is moving, and FIG. 3 is a partial diagram illustrating a situation in which the movable table is on standby. 1... Suction and forced air blower, 2... Coarse particle separator, 3... Fine particle filter, 4, 4'... Sediment discharge port, 5... Clean air exhaust hole, 6... Main duct, 7, 7 ′,7″……Branch duct, 8,8′,
8″...Opening/closing damper, 9,9',9″...Flexible hose, 10...Automatic control device, 11,1
1', 11''...Air cylinder, 12, 12',
12''...Cover, 13...Welded portion, 13'...Moving table running surface, 13''...Electrode surface.