JPS6082238A - Method of forming mouth piece structure - Google Patents
Method of forming mouth piece structureInfo
- Publication number
- JPS6082238A JPS6082238A JP18697383A JP18697383A JPS6082238A JP S6082238 A JPS6082238 A JP S6082238A JP 18697383 A JP18697383 A JP 18697383A JP 18697383 A JP18697383 A JP 18697383A JP S6082238 A JPS6082238 A JP S6082238A
- Authority
- JP
- Japan
- Prior art keywords
- curved
- cylindrical
- inner flange
- tapered
- tip
- 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.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 15
- 239000012611 container material Substances 0.000 claims abstract description 4
- 230000002093 peripheral effect Effects 0.000 abstract description 5
- 238000005452 bending Methods 0.000 abstract 1
- 230000003811 curling process Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000002262 irrigation Effects 0.000 description 1
- 238000003973 irrigation Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000003566 sealing material Substances 0.000 description 1
- 235000020016 small beer Nutrition 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D51/00—Making hollow objects
- B21D51/16—Making hollow objects characterised by the use of the objects
- B21D51/26—Making hollow objects characterised by the use of the objects cans or tins; Closing same in a permanent manner
- B21D51/2615—Edge treatment of cans or tins
- B21D51/2623—Curling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D51/00—Making hollow objects
- B21D51/16—Making hollow objects characterised by the use of the objects
- B21D51/26—Making hollow objects characterised by the use of the objects cans or tins; Closing same in a permanent manner
- B21D51/2615—Edge treatment of cans or tins
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D51/00—Making hollow objects
- B21D51/16—Making hollow objects characterised by the use of the objects
- B21D51/26—Making hollow objects characterised by the use of the objects cans or tins; Closing same in a permanent manner
- B21D51/2615—Edge treatment of cans or tins
- B21D51/263—Flanging
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は小形ビール樽等の耐圧容器に採用される口金構
造の成形方法１こ関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for forming a cap structure for use in pressure-resistant containers such as small beer barrels.
本件出願人は実願昭５８−７５０４０号において第１図
のような耐圧容器の口金構造を提案している。The present applicant proposed a cap structure for a pressure-resistant container as shown in FIG. 1 in Utility Application No. 58-75040.
断面部分図である第１図において、ｌは例えば０．２〜
０．３ ｆｆの板厚ｔを有するアルミニウム板製の容器
本体で、上端中央部に上方へ突出した筒状の口金本体２
を一体に備えている。口金本体２の上端部こは半径方向
外方へ湾曲した環状の湾曲部３が連続しており、湾曲部
３から概ね筒状（テーバ状）の外周部４が下方かつ半径
方向外方へ延びている。In FIG. 1, which is a partial cross-sectional view, l is, for example, 0.2 to
The container body is made of an aluminum plate with a thickness t of 0.3 ff, and has a cylindrical cap body 2 that protrudes upward at the center of the upper end.
It is equipped with the following. An annular curved part 3 that curves radially outward is continuous at the upper end of the cap body 2, and a generally cylindrical (tapered) outer peripheral part 4 extends downward and radially outward from the curved part 3. ing.
外周部４の下端ｆこは半径方向内方へ湾曲した湾曲部５
が形成されている。湾曲部５からは平坦な環状先端部６
が半径方向内方へ延びており、先端部６の内周が口金本
体２の外周面に概ね９０°の角度りで当接しカール部７
を１１り成している。上記カール部７、すなわち湾曲部
３から先端部６まての部分には薄板金属製のキャップ８
がかしめにより固定され、又キャップ８と外周部４の間
にシール材９が介装される。なお先端部６は口金本体２
Ｉこ対して９０°よりも多少大きい角度りで当接させる
こともできる。The lower end f of the outer peripheral portion 4 is a curved portion 5 that curves inward in the radial direction.
is formed. From the curved part 5, a flat annular tip part 6 is formed.
extends radially inward, and the inner periphery of the tip 6 abuts the outer periphery of the mouthpiece body 2 at an angle of approximately 90°, forming a curled portion 7.
It consists of 11 parts. A thin sheet metal cap 8 is attached to the curled portion 7, that is, the portion from the curved portion 3 to the tip portion 6.
It is fixed by caulking, and a sealing material 9 is interposed between the cap 8 and the outer peripheral part 4. Note that the tip 6 is the base body 2.
It is also possible to make the contact point at an angle somewhat larger than 90°.
上記構造によると口金の強度を高くできるという利点が
あるが、その反面、カール部７０半径方向の幅りの設定
が難しいという問題がある。すなわちキャップ８により
気密性を正確に保つＧＣ＆工幅りを正確−こ設定する必
要があるが、カール部７は様々な加工（絞り、ピアス、
バーリング、第１カール、第２カール）を経て成形され
るので、キャップ８による気密性を充分子こ高め得る程
度にまで幅りを正確に設定しようとすると、加工等に手
間が掛かる。The above structure has the advantage that the strength of the cap can be increased, but on the other hand, there is a problem that it is difficult to set the width of the curled portion 70 in the radial direction. In other words, it is necessary to accurately set the GC and machining width to maintain accurate airtightness with the cap 8, but the curl part 7 can be subjected to various processing (drawing, piercing, etc.).
burring, first curling, and second curling), therefore, if the width is to be set accurately to the extent that the airtightness of the cap 8 can be sufficiently increased, it takes time and effort for processing.
本発明は上記問題を解決できる口金構造の成形方法を提
供することを目的としている。An object of the present invention is to provide a method for molding a cap structure that can solve the above problems.
上記目的を達成するために本発明は、筒状部、湾曲部、
及び底部からなる有底筒状部を有する容器素材の有底筒
状部に口金構造を形成する方法に於いて、底部°に孔を
設けて平坦な環状内７ランノ部を形成する工程、該内フ
ランジ部と湾曲部を円筒状に立上げるバーリング工程、
゛該円筒状１こ立上げた湾曲部を半径方向外方へ曲げら
れた湾曲部とすると共１こ該円筒状に立上げた内フラン
ジ部を湾曲部から半径方向内方ヘテーバ状に延びるテー
バ部とする第１のカール工程および筒状部の上端部を半
径方向外方へ曲げて該テーパ部の先端部を該筒状部に当
接させる第２のカール工程を順次経ることを特徴として
いる。In order to achieve the above object, the present invention has a cylindrical part, a curved part,
In a method for forming a cap structure in a bottomed cylindrical part of a container material having a bottomed cylindrical part consisting of a bottom part and a bottom part, the step of forming a flat annular inner seven-run part by forming a hole in the bottom part; Burring process to raise the inner flange part and curved part into a cylindrical shape,
゛The cylindrical raised curved part is a curved part bent radially outward, and the cylindrical raised inner flange part is a tapered part that extends radially inward from the curved part. and a second curling step in which the upper end of the cylindrical part is bent radially outward and the tip of the tapered part is brought into contact with the cylindrical part. There is.
次に図面により実施例を説明する。第２図〜第５図の（
Ａ） ｒｔ各加工工程を終えた口金の断面部分略図であ
り、（Ｂ）は口金の拡大部分図である。Next, embodiments will be described with reference to the drawings. Figures 2 to 5 (
A) rt is a partial schematic cross-sectional view of the die after each processing step, and (B) is an enlarged partial view of the die.
第２図の如く絞り加工により有底筒状部１ａを有する容
器素材ｌを製造する。有底筒状部１ａは献部２ａと、底
部６ａと、両者を一体に連続させる環状の湾曲部５ａと
を備えている。湾曲部５ａの半径ｒは絞り工程における
ポンチ肩部の半径と一致している。次に第３図の如くピ
アス加工が施され、底部６ａの中央部に孔ｌＯを設け、
底部６ａを平坦な環状の内フランジ部（ｉａｌとする。As shown in FIG. 2, a container material 1 having a bottomed cylindrical portion 1a is manufactured by drawing. The bottomed cylindrical portion 1a includes a bottom portion 2a, a bottom portion 6a, and an annular curved portion 5a that integrally connects both. The radius r of the curved portion 5a matches the radius of the punch shoulder in the drawing process. Next, piercing is performed as shown in Fig. 3, and a hole lO is provided in the center of the bottom part 6a.
The bottom portion 6a is a flat annular inner flange portion (ial).
次にパーリング加工（立上げ加工）が施され、内フラン
ジ部５ａｔと湾曲部５ａニ第４図の如く概ね円筒状に立
上げ成形されて筒状部２ａを延長した形となる。次１こ
第１カール工程薇こおいてカール加工を施し、立上げた
湾曲部５ａを第５図の如く半径方向外方へ曲げられた湾
曲部５ａｌとし、又同様に立上げた内フランジ部６ａ１
を湾曲部５ａｌから半径方向内方へテーバ状に延びるテ
ーパ部６ａｌ＋とする。次１こ筒状部２ａの開口端寄り
の部分１１が第２カール工程により矢印Ｐの如く半径方
向外方へ曲げられ、部分１１により第１図の湾曲部３と
外周部４が形成される。Next, a purling process (rising process) is performed, and the inner flange part 5at and the curved part 5a are formed into a generally cylindrical shape as shown in FIG. 4, resulting in a shape that is an extension of the cylindrical part 2a. Next, in the first curling process, the curling process is performed, and the raised curved part 5a is turned into a curved part 5al bent radially outward as shown in FIG. 5, and the inner flange part is raised in the same manner. 6a1
is a tapered portion 6al+ extending radially inward from the curved portion 5al. Next, the part 11 near the opening end of the first cylindrical part 2a is bent radially outward as shown by the arrow P in the second curling step, and the part 11 forms the curved part 3 and the outer peripheral part 4 in FIG. .
又第５図の湾曲部５ａｌとテーパ部６ａｇはそれぞれ第
１図の湾曲部５及び先端部６となる。これによりカール
部７の加工は完了する。Further, the curved portion 5al and the tapered portion 6ag in FIG. 5 become the curved portion 5 and tip portion 6 in FIG. 1, respectively. This completes the processing of the curled portion 7.
次に各部の寸法等を説明する。第３図（Ｂ） ｓこおい
て１２は湾曲部５ａと内フランジ部６ａｌとの境界部分
であり、内７ラング部６ａｌの幅ｌａは部分１２から孔
１０の内周までの長さとなっている。 この境界部分１
２は第５図の湾曲部５ａｌとテーパ部６ａ１１の境界部
分１２と二数しており、又第１図の湾曲部５と先端部６
の境界部分１２と一致している。従って先端部６の幅ｌ
は第３図の内フランジ部５ａｌの幅Ｊａと一致しており
、第１図の幅ｌは第２図の素材の有底筒状部Ｈａを成形
する絞り工程と、第３図の有底筒状部１ａの底部６ａに
施されるピアス工程だけで決定されろっ又＄１図の湾曲
部５０曲率半径Ｒは第５図の第１カール工程後の湾曲部
５ａｌの半径Ｒａと一致している。従って第１図の半径
Ｒ１第１カール工程だけで決定される。そして第１図の
カール部７の幅りは先端部６０幅ｌと湾曲部５０半径Ｈ
の和（Ｌ＝Ｊ＋Ｒ）となるが、上述の如く幅ｌは絞り工
程とピアス工程だけで決定され、又半径Ｒは第１カール
工程だけで決定されるので、それらの寸法（／、Ｒ）は
容易かつ正確昏こ決定することができる。換言すれば初
期工程において決定される第３図の境界部分１２をその
まま第１図の製品カール部７の境界部分１２としたので
、各工程において寸法形状を決定しやすく、製品寸法を
容易かつ正確に決定することができる。Next, the dimensions of each part will be explained. In FIG. 3(B), 12 is the boundary between the curved portion 5a and the inner flange portion 6al, and the width la of the inner seven rung portions 6al is the length from the portion 12 to the inner circumference of the hole 10. There is. This boundary part 1
2 represents the boundary portion 12 between the curved portion 5al and the tapered portion 6a11 in FIG. 5, and also represents the curved portion 5 and the tip portion 6 in FIG.
It coincides with the boundary portion 12 of . Therefore, the width l of the tip 6
corresponds to the width Ja of the inner flange portion 5al in FIG. 3, and the width l in FIG. The radius of curvature R of the curved portion 50 in FIG. ing. Therefore, the radius R1 in FIG. 1 is determined only by the first curling process. The width of the curled portion 7 in FIG. 1 is the width l of the tip portion 60 and the radius H of the curved portion 50.
(L = J + R), but as mentioned above, the width l is determined only by the drawing process and the piercing process, and the radius R is determined only by the first curling process, so those dimensions (/, R) can be easily and accurately determined. In other words, since the boundary portion 12 in FIG. 3 determined in the initial process is directly used as the boundary portion 12 of the product curl portion 7 in FIG. 1, the dimensions and shape can be easily determined in each process, and the product dimensions can be easily and accurately can be determined.
以上説明したように本発明によると、初期の加工工程を
終えた第３図の素材１の有底筒状部１ａｌこ内フランジ
部（５ａｌを設け、この内フランジ部６ａｔを製品カー
ル部７の先端部６としたので、カール部７の寸法精度を
容易に高め、気密性に優れた高強度の口金構造を構成す
ることができる。As explained above, according to the present invention, an inner flange portion (5al) is provided in the bottomed cylindrical portion 1al of the material 1 shown in FIG. Since the tip portion 6 is used, the dimensional accuracy of the curled portion 7 can be easily increased, and a high-strength cap structure with excellent airtightness can be constructed.
第１図は製品容器の断面部分図、第２図〜第５図は各加
工工程を終えた容器水利の断面部分略図と断面拡大部分
図である。ｌ・・・素材、有底筒状部Ｈａ、２・・・口
金本体、２ａ・・・筒状部、５ａ・・・湾曲部、６・・
・先端部、６ａｔ−・・内フランジ部、７・・・カール
部、ｌＯ・・・孔FIG. 1 is a partial cross-sectional view of the product container, and FIGS. 2 to 5 are a schematic cross-sectional view and an enlarged cross-sectional view of the container for irrigation after each processing step. l...Material, bottomed cylindrical part Ha, 2...Body of the cap, 2a...Cylindrical part, 5a...Curved part, 6...
・Tip part, 6at-...inner flange part, 7...curl part, lO...hole
Claims (1)
状部１ａを有する容器素材１の有底筒状部ｌａに口金構
造を形成する方法ｆこ於いて、底部６ａに孔ｌＯを設け
て平坦な環状内フランジ部５ａｌを形成する工程、該内
フランジ部（５ａｌと湾曲部５ａを円筒状に立上げるバ
ーリング工程、該円筒状ｌこ立上げた湾曲部５ａを半径
方向外方へ曲げられた湾曲部５ａｌとすると共に該円筒
状に立上げだ内フランジ部５ａｌを湾曲部５ａ＋から半
径方向内方へテーバ状に延びるテーバ部６ａｇとする第
１のカール工程および筒状部２ａの上端部１１を半径方
向外方へ曲げて該テーバ部６ａ２の先端部を該筒状部２
ａに当接させる第２０ｈ−少工程を順次径ることを特徴
とする口金構造の成形方法。A method f for forming a cap structure in a bottomed cylindrical part la of a container material 1 having a bottomed cylindrical part 1a consisting of a cylindrical part 2a, a curved part 5a, and a bottom part 6a. a step of forming a flat annular inner flange portion 5al; a burring step of raising the inner flange portion (5al) and the curved portion 5a into a cylindrical shape; and a burring step of raising the raised curved portion 5a in the radial direction. A first curling step in which the cylindrical raised inner flange portion 5al is formed into a tapered portion 6ag extending radially inward from the curved portion 5a+, and the cylindrical portion 2a is bent. The upper end portion 11 is bent radially outward and the tip of the tapered portion 6a2 is attached to the cylindrical portion 2.
A method for forming a cap structure, characterized in that the diameter of the 20h-small step brought into contact with a is sequentially increased.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18697383A JPS6082238A (en) | 1983-10-07 | 1983-10-07 | Method of forming mouth piece structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18697383A JPS6082238A (en) | 1983-10-07 | 1983-10-07 | Method of forming mouth piece structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6082238A true JPS6082238A (en) | 1985-05-10 |
Family
ID=16197961
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18697383A Pending JPS6082238A (en) | 1983-10-07 | 1983-10-07 | Method of forming mouth piece structure |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6082238A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007122971A1 (en) * | 2006-04-17 | 2007-11-01 | Toyo Seikan Kaisha, Ltd. | Metal can |
| WO2020116355A1 (en) * | 2018-12-04 | 2020-06-11 | ユニバーサル製缶株式会社 | Can body |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5788924A (en) * | 1980-11-22 | 1982-06-03 | Hirohama Kinzoku Kogyo Kk | Method for manufacturing opening of tin |
| JPS5824726B2 (en) * | 1976-04-09 | 1983-05-23 | 日本電子株式会社 | Scanning length measuring device |
-
1983
- 1983-10-07 JP JP18697383A patent/JPS6082238A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5824726B2 (en) * | 1976-04-09 | 1983-05-23 | 日本電子株式会社 | Scanning length measuring device |
| JPS5788924A (en) * | 1980-11-22 | 1982-06-03 | Hirohama Kinzoku Kogyo Kk | Method for manufacturing opening of tin |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007122971A1 (en) * | 2006-04-17 | 2007-11-01 | Toyo Seikan Kaisha, Ltd. | Metal can |
| JP5051394B2 (en) * | 2006-04-17 | 2012-10-17 | 東洋製罐株式会社 | Metal can |
| WO2020116355A1 (en) * | 2018-12-04 | 2020-06-11 | ユニバーサル製缶株式会社 | Can body |
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