JP2583840B2 - Manufacturing method of steel drums - Google Patents
Manufacturing method of steel drumsInfo
- Publication number
- JP2583840B2 JP2583840B2 JP3281848A JP28184891A JP2583840B2 JP 2583840 B2 JP2583840 B2 JP 2583840B2 JP 3281848 A JP3281848 A JP 3281848A JP 28184891 A JP28184891 A JP 28184891A JP 2583840 B2 JP2583840 B2 JP 2583840B2
- Authority
- JP
- Japan
- Prior art keywords
- cylindrical body
- manufacturing
- steel
- weld
- support die
- 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 - Lifetime
Links
Landscapes
- Containers Having Bodies Formed In One Piece (AREA)
- Rigid Containers With Two Or More Constituent Elements (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は鋼製ドラム缶の製造方法
に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for manufacturing a steel drum.
【０００２】[0002]
【従来の技術】鋼製ドラム缶は、薄鋼板をロール加工し
て円筒状に成形し、その側縁を溶接して円筒体を作り、
両端部にフランジ加工を施し、次に円筒体に補強用の輪
帯を成形加工し、鋼板表面に付着した油、汚れ等を清浄
した後に、巻締め等により地板そして必要に応じ天板も
取付けるという工程を経て、製作される。2. Description of the Related Art A steel drum can is formed by rolling a thin steel plate into a cylindrical shape, and welding a side edge thereof to form a cylindrical body.
Apply flange processing to both ends, then form a reinforcing ring on the cylinder, clean oil and dirt attached to the surface of the steel plate, then attach the main plate and, if necessary, the top plate by tightening etc. It is manufactured through the process described above.
【０００３】しかしながら、円筒体を作る際に溶接によ
り生じたビードは酸化スケールを有しているために塗装
時に塗膜の密着性を低下させたり、あるいはビードが凸
条となっていると共に円周方向に重ね合わせによる段差
を生じているため地板や天板の巻締めが不完全となるこ
とがある。[0003] However, the beads generated by welding when the cylindrical body is formed have an oxide scale, so that the adhesion of the coating film is reduced at the time of coating, or the beads are formed into a convex shape and the circumference is reduced. Since the step is caused by overlapping in the direction, the winding of the base plate and the top plate may be incomplete.
【０００４】そこで、溶接後に、上記円筒体のビードを
研摩して上記酸化スケールを除去すると共に、周方向の
段差の平滑化を図っている。Therefore, after welding, the bead of the cylindrical body is polished to remove the oxide scale and to smooth the circumferential step.
【０００５】[0005]
【発明が解決しようとする課題】しかしながら、従来の
ような研摩によるビードの酸化スケール除去及び平滑化
にあっては、粉塵が発生すること、そして研摩工具の交
換頻度が高くなってしまうこと等の問題があり、その改
善が求められていた。However, in the conventional removal and smoothing of oxidized scale of a bead by polishing, dusts are generated, and the frequency of changing a polishing tool is increased. There was a problem, and improvement was required.
【０００６】本発明はかかる問題を解決し、きわめて能
率的に酸化スケールの除去及び平滑化による品質向上を
可能とした鋼製ドラム缶の製造方法を提供することを目
的とする。SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned problems and to provide a method for manufacturing a steel drum can which can improve the quality by removing and smoothing oxide scale very efficiently.
【０００７】[0007]
【課題を解決するための手段】本発明によれば、上記目
的は、薄鋼板を円筒状に成形した後に側縁を重ね合わせ
て溶接して円筒体を形成し、該円筒体に少なくとも地板
を取付けることとした鋼製ドラム缶の製造方法におい
て、地板取付前に、円筒体を支持ダイ上に配して該円筒
体内部にて加圧ローラを回転走行せしめて溶接部分を冷
間潰しし、次に、該冷間潰しにより両端に生じた張出し
部分を切断することにより達成される。According to the present invention, the object is to form a thin steel sheet into a cylindrical shape and then overlap the side edges.
To form a cylindrical body, and at least the main plate
Method for manufacturing steel drums
Before mounting the base plate, place the cylinder on the support die
The welding roller is cooled by rotating the pressure roller inside the body.
Crushing, and then the overhang created at both ends by the cold crushing
Achieved by cutting parts .
【０００８】[0008]
【０００９】[0009]
【作用】かかる本発明にあっては、上記円筒体は溶接部
分が支持ダイ上で加圧ローラにより冷間潰しされる。そ
の圧力により、溶接部の酸化スケールは剥離し、後の清
浄工程で容易に除去される。また、加圧されることによ
り上記溶接部は周方向での段差がなくなり平滑化され
る。さらには、ビードの細かい波状表面も、加圧ローラ
に圧せられて平坦なものとなる。しかる後、冷間潰しに
より発生した端部における張出し部分を切断する。According to the present invention, the above-mentioned cylindrical body is cold-crushed by the pressing roller on the support die at the welding portion. The pressure causes the oxide scale at the weld to separate and be easily removed in a subsequent cleaning step. Further, by applying pressure, the welded portion has no step in the circumferential direction and is smoothed. Further, the fine wavy surface of the bead is also flattened by being pressed by the pressure roller. Thereafter, the protruding portion at the end generated by the cold crushing is cut.
【００１０】かくして、巻締めや塗装における問題が解
決される。[0010] Thus, the problems in winding and painting can be solved.
【００１１】[0011]
【実施例】以下、添付図面にもとづいて本発明の実施例
を説明する。Embodiments of the present invention will be described below with reference to the accompanying drawings.
【００１２】図１は本発明により鋼製ドラムを製作する
ための装置の一例を示す部分破断斜視図である。[0012] Figure 1 is a partially broken perspective view showing an example of an apparatus for producing a steel drum according to the invention.
【００１３】図において、１は薄鋼板を円筒状に形成し
て側縁を重ね合わせた後に溶接をして得られた円筒体で
ある。該円筒体１は、その溶接部分１Ａが基台３に設け
られた支持ダイ２の上面に接するように横置されてい
る。該支持ダイ２は上面が上記円筒体１の表面に沿った
凹弯曲面を有しているが、その曲率半径は円筒体１の半
径よりもわずかに大きく設定されている。In FIG. 1, reference numeral 1 denotes a cylindrical body obtained by forming a thin steel plate into a cylindrical shape, overlapping the side edges, and then welding. The cylindrical body 1 is placed laterally so that the welded portion 1A is in contact with the upper surface of the support die 2 provided on the base 3. The upper surface of the support die 2 has a concave curved surface along the surface of the cylindrical body 1, and its radius of curvature is set slightly larger than the radius of the cylindrical body 1.
【００１４】上記支持ダイ２の右方には加圧装置４が配
設されている。該加圧装置４は、筐体５内にて縦方向に
所定間隔に設けられた二対のガイドローラ６，６と７，
７が筐体５により回転自在に支持されている。各対のロ
ーラ間、すなわちガイドローラ６と６そして７と７の間
には角筒状のスライダ８が筐体５の窓５Ａを貫通して設
けられ、水平方向に移動可能に支持されている。A pressing device 4 is disposed on the right side of the support die 2. The pressurizing device 4 includes two pairs of guide rollers 6, 6, 7, and
7 is rotatably supported by the housing 5. Between each pair of rollers, that is, between the guide rollers 6 and 6, and between 7 and 7, a rectangular tubular slider 8 is provided through the window 5A of the housing 5, and is supported so as to be movable in the horizontal direction. .
【００１５】上記筐体５内には減速機付モータ９が設け
られ、該モータ９とスライダ８とはリンク１０により連
結されている。上記モータ９は指令により回転し、リン
ク１０を介して上記スライダ８を前進・後退させるよう
になっている。A motor 9 with a speed reducer is provided in the housing 5, and the motor 9 and the slider 8 are connected by a link 10. The motor 9 rotates according to a command, and moves the slider 8 forward and backward through a link 10.
【００１６】上記スライダ８の前端部（図にて左端部）
は下部が開放されていて、加圧シリンダ１１が取付けら
れている。該加圧シリンダ１１の下方に延出するロッド
１２に加圧ローラ１３が回転自在に支持されている。そ
して、上記スライダ８の後端部には、油圧ユニット１４
が設けられており、スライダ８の内部空間内の配管（図
示せず）により上記加圧シリンダ１１に接続されてい
る。かくして、スライダ８が水平移動すると、上記加圧
ローラ１３は、上記支持ダイ２に横置された円筒体１の
溶接部１Ａ上を加圧しながら転動することとなる。The front end of the slider 8 (left end in the figure)
Is open at the bottom and has a pressure cylinder 11 attached. A pressure roller 13 is rotatably supported by a rod 12 extending below the pressure cylinder 11. The rear end of the slider 8 has a hydraulic unit 14
And is connected to the pressurizing cylinder 11 by a pipe (not shown) in the internal space of the slider 8. Thus, when the slider 8 moves horizontally, the pressure roller 13 rolls while pressing on the welded portion 1A of the cylindrical body 1 placed laterally on the support die 2.
【００１７】次に、かかる本実施例における装置を用い
て鋼製ドラムを作る要領について図２の工程Ａ〜Ｉ順に
説明する。Next, procedure described process A~I order of 2 for making steel drum using a device in accordance the present embodiment.
【００１８】先ず、工程Ａのごとくの薄鋼板を用意し、
これを円筒状に成形してその側縁部を重ね合わせ、該部
分を工程Ｂで溶接して円筒体１を得る。First, a steel sheet as in step A is prepared,
This is formed into a cylindrical shape, the side edges are overlapped, and the portion is welded in step B to obtain the cylindrical body 1.
【００１９】この円筒体１を図１の支持ダイ２上に横置
し、加圧装置４を用いて、加圧ローラ１３により溶接部
分１Ａに冷間潰し工程Ｃを行う。該加圧ローラ１３の転
動走行は上記溶接部分１Ａ上を１往復することとしても
複数回往復することとしてもよい。この冷間潰しを行う
と、図３に示されるごとく、周方向に段差があった溶接
部分１Ａは平滑化されると共に、円筒体１の中心線方向
においても溶接ビードの波状表面は平坦になる。また、
加圧転動を受けることにより溶接部分の表面の酸化スケ
ールは鋼板素地との密着性を失う。The cylindrical body 1 is placed laterally on the support die 2 shown in FIG. 1, and a pressing device 4 is used to perform a cold crushing step C on the welded portion 1A by a pressing roller 13. The rolling travel of the pressure roller 13 may be performed one reciprocation on the welding portion 1A or a plurality of reciprocations. When this cold crushing is performed, as shown in FIG. 3, the welded portion 1A having the step in the circumferential direction is smoothed, and the wavy surface of the weld bead becomes flat also in the center line direction of the cylindrical body 1. . Also,
Oxidation scale on the surface of the welded part loses adhesion to the steel sheet base by being subjected to pressure rolling.
【００２０】上記工程Ｃでは冷間潰しにより円筒体１の
両端部に張出し部分１Ｃが生ずるので、次工程Ｄにてこ
れを切断する。In the above step C, the overhang portions 1C are formed at both ends of the cylindrical body 1 due to the cold crushing.
【００２１】しかる後、工程Ｅにて円筒体１の両端部に
フランジ１Ｅを形成し、工程Ｆにて輪帯１Ｆを形成す
る。Thereafter, in step E, flanges 1E are formed at both ends of the cylindrical body 1, and in step F, an annular zone 1F is formed.
【００２２】次に、清浄工程Ｇにて上記の密着性を失っ
た酸化スケールを除去すると共に円筒体１の内外面を清
浄し、別工程ですでに用意された天板及び地板を上記フ
ランジ部１Ｅに巻締め等により取付ける。Next, in the cleaning step G, the oxide scale having lost the above-mentioned adhesion is removed, and the inner and outer surfaces of the cylindrical body 1 are cleaned. Attach to 1E by winding.
【００２３】かくして、塗装等の工程を経て工程Ｉのご
とくの製品ドラム缶を得る。Thus, a product drum as in step I is obtained through steps such as painting.
【００２４】[0024]
【発明の効果】本発明は以上のごとく、円筒体の溶接部
分を冷間潰しすることとしたので、溶接部分の酸化スケ
ールが簡単に除去され、また段差も容易に平滑化され
る。かかる本発明によれば、塗装焼付けの際、塗膜の密
着性が高くなって良好の塗装ができ、製品としての鋼製
ドラム缶の品質の向上が図れ、また、外周面のスクリー
ン印刷にあっても段差による不鮮明箇所が生じなくな
り、さらには、巻締めにおいては溶接部分での不均一巻
締め形状がなくなるという効果を得る。As described above, according to the present invention, the welded portion of the cylindrical body is cold-crushed, so that the oxidized scale of the welded portion can be easily removed and the step can be easily smoothed. According to the present invention, when the coating is baked, the adhesion of the coating film is increased and a good coating can be performed .
The quality of the drum can can be improved, and even in screen printing on the outer peripheral surface, an unclear portion due to a step can be prevented from occurring, and further, an effect of eliminating a nonuniformly tightened shape at a welded portion can be obtained.
【００２５】また、上記の酸化スケールの除去が簡単に
行えるだけでなく、従来のごとく研摩による粉塵が飛散
せず作業性が向上しまた衛生的である。さらには、平滑
化は円筒体の内外周を同時に行うことができ、きわめて
能率がよくなる。Further, not only can the above-mentioned oxide scale be easily removed, but also dust is not scattered by polishing as in the prior art, so that workability is improved and sanitation is achieved. Further, the smoothing can be performed simultaneously on the inner and outer circumferences of the cylindrical body, which is extremely efficient.
【図１】本発明の実施例に用いられる装置を示す一部破
断斜視図である。FIG. 1 is a partially cutaway perspective view showing an apparatus used in an embodiment of the present invention.
【図２】本実施例の工程を示す図である。FIG. 2 is a view showing a process of this embodiment.
【図３】図２の工程Ｃにおける溶接部分の冷間潰しの様
子を示す図である。FIG. 3 is a view showing a state of cold crushing of a welded portion in a step C of FIG. 2;
１ 円筒体 １Ａ 溶接部分 ２ 支持ダイ １３ 加圧ローラ DESCRIPTION OF SYMBOLS 1 Cylindrical body 1A Weld part 2 Support die 13 Pressure roller
Claims (1)
ね合わせて溶接して円筒体を形成し、該円筒体に少なく
とも地板を取付けることとした鋼製ドラム缶の製造方法
において、地板取付前に、円筒体を支持ダイ上に配して
該円筒体内部にて加圧ローラを回転走行せしめて溶接部
分を冷間潰しし、次に、該冷間潰しにより両端に生じた
張出し部分を切断することを特徴とする鋼製ドラム缶の
製造方法。1. A side edge is weighted after forming a thin steel sheet into a cylindrical shape.
Weld and weld to form a cylindrical body,
Method of manufacturing steel drums with both bottom plates attached
In, before mounting the main plate, arrange the cylindrical body on the support die
The pressure roller is rotated inside the cylindrical body to make it welded.
Min and then cold-crushed at both ends
Steel drum, characterized in that cutting the overhang
Manufacturing method .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3281848A JP2583840B2 (en) | 1991-10-03 | 1991-10-03 | Manufacturing method of steel drums |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3281848A JP2583840B2 (en) | 1991-10-03 | 1991-10-03 | Manufacturing method of steel drums |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0596336A JPH0596336A (en) | 1993-04-20 |
| JP2583840B2 true JP2583840B2 (en) | 1997-02-19 |
Family
ID=17644851
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3281848A Expired - Lifetime JP2583840B2 (en) | 1991-10-03 | 1991-10-03 | Manufacturing method of steel drums |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2583840B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CZ297771B6 (en) | 1999-05-21 | 2007-03-28 | Mauser-Werke Gmbh Co. Kg | Rolling machine |
| DE102008048241A1 (en) * | 2008-09-17 | 2010-04-15 | Volkmann Elektromaschinenbau Gmbh | Processing device for soldered workpieces |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0710873Y2 (en) * | 1987-07-20 | 1995-03-15 | 守哉 南浦 | Shaper for lap welding seams on can bodies |
| JPH08313B2 (en) * | 1991-01-14 | 1996-01-10 | 東洋製罐株式会社 | Manufacturing method of metal cylinder |
-
1991
- 1991-10-03 JP JP3281848A patent/JP2583840B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0596336A (en) | 1993-04-20 |
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