JPH0364215B2 - - Google Patents
Info
- Publication number
- JPH0364215B2 JPH0364215B2 JP14227084A JP14227084A JPH0364215B2 JP H0364215 B2 JPH0364215 B2 JP H0364215B2 JP 14227084 A JP14227084 A JP 14227084A JP 14227084 A JP14227084 A JP 14227084A JP H0364215 B2 JPH0364215 B2 JP H0364215B2
- Authority
- JP
- Japan
- Prior art keywords
- lid
- seaming
- chuck wall
- diameter
- edge
- 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
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
- B21D51/30—Folding the circumferential seam
- B21D51/32—Folding the circumferential seam by rolling
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は缶胴に缶蓋を巻締することにより閉蓋
する缶体の製造法、特に金属素材又は紙質を基材
とする缶胴に金属製缶該を巻締し更にネツクイン
加工を施した缶体の製造法に関する。Detailed Description of the Invention (Industrial Field of Application) The present invention relates to a method for producing a can body that is closed by wrapping a can lid onto a can body, particularly for a can body made of metal or paper as a base material. The present invention relates to a method for manufacturing a can body by seaming a metal can and further applying a necking process.
（従来の技術）
この種のネツクイン加工を施した缶体の製造法
として特開昭58−41633号公報で提案されるもの
は、まず第１図Ａ示の如く缶胴Ｘの内径と缶蓋Ｙ
のチヤツクウオール部ａの外径とを一致させたも
のを用い、該缶胴Ｘに缶蓋Ｙを被嵌させた後に、
缶蓋Ｙのパネル面ｂ側においてチヤツクウオール
部ａの内面に当接させて該チヤツクウオール部ａ
の対面位置に断面く字形に凹入する周溝面Ｃを備
えたシーミング回転チヤツクｄを装着し、他方、
缶胴Ｘ側のチヤツクウオール部ａ対向部位に断面
く字形に突出する周面ｅを備えた押圧ロールｆを
当接するようにする。そして、第１図Ｂ示の如く
シーミング回転チヤツクｄと押圧ロールｆとによ
つてチヤツクウオール部ａにも一体にネツクイン
加工を施し、次いで第１図Ｃの如く別途、用意し
たシーミング回転チヤツクd′を用いて缶蓋Ｙの蓋
フランジｇと缶胴Ｘの端縁ｈをシーミングロール
ｉにより折り返して２重巻締を形成する。(Prior art) The method proposed in Japanese Patent Application Laid-open No. 58-41633 as a method for manufacturing a can body with this type of neck-in processing is based on the inner diameter of the can body X and the can lid as shown in FIG. 1A. Y
After fitting the can lid Y onto the can body
The chuck wall part a is brought into contact with the inner surface of the chuck wall part a on the panel surface b side of the can lid Y.
A seaming rotary chuck d having a circumferential groove surface C recessed in a dogleg shape in cross section is installed at a facing position, and on the other hand,
A pressure roll f having a circumferential surface e projecting in a dogleg shape in cross section is brought into contact with a portion of the can body X facing the chuck wall portion a. Then, as shown in FIG. 1B, the chuck wall part a is also integrally threaded with a seaming rotary chuck d and a pressure roll f, and then a separately prepared seaming rotary chuck d' is applied as shown in FIG. 1C. The lid flange g of the can lid Y and the end edge h of the can body X are folded back by a seaming roll i to form a double seam.
この製造法によるときは、缶胴Ｘと共にネツク
イン加工されたチヤツクウオール部ａは耐圧性を
向上させる反面、前記シーミング回転チヤツクｄ
はネツクイン加工した後に、ネツクイン加工され
たチヤツクウオール部ａ内面に嵌合することにな
るので直接に離脱させることができないため、シ
ーミング回転チヤツクｄの機構にシーミング回転
チヤツクｄの径を拡大又は縮小する特殊な機構及
び押圧ロールｆを採用しなければならず、更に２
重巻締加工のため別途、特殊な偏心機構を備えた
シーミング回転チヤツクd′及びシーミングロール
ｉを用いなければならない。従つて従来の２重巻
締装置とは異なる新規の装置が必要であり、更に
加工工程が複雑なため低速でしか製造できない不
都合がある。 When this manufacturing method is used, the chuck wall part a that is neck-in-processed together with the can body X improves pressure resistance, but the
After the neck-in process has been performed, it will fit into the inner surface of the neck-in-processed chuck wall part a, so it cannot be removed directly. Therefore, the mechanism of the seaming rotary chuck d has a special mechanism that enlarges or reduces the diameter of the seaming rotary chuck d. It is necessary to adopt a mechanism and a pressure roll f, and also 2
For heavy seaming, it is necessary to separately use a seaming rotary chuck d' and a seaming roll i equipped with a special eccentric mechanism. Therefore, a new device different from the conventional double seaming device is required, and furthermore, since the processing process is complicated, there is an inconvenience that manufacturing can only be performed at a low speed.
他方、出願人は特開昭58−35027号にみられる
ように従来の２重巻締装置でネツクイン加工を施
した缶体を製造する方法を提案している。即ち、
第２図Ａ示の如く缶胴Ｘの内径より小さい外径を
有する缶蓋Ｙを缶胴Ｘに被嵌させ、該缶蓋Ｙのチ
ヤツクウオール部ａの内径に合致したチヤツクｄ
を嵌合させて巻締加工を施し第２図Ｂ示の如く缶
胴Ｘをチヤツクウオール部ａ側に変形してネツク
イン部を形成するものである。しかしながら、こ
の方法によるときは、前記した従来方法と相異し
て、チヤツクウオール部ａは缶胴Ｘと直線的な対
面構造となるため、比較的薄いプラスチツクス、
紙材もしくはこれらの積層材からなるような缶胴
に用いたときは耐圧性において不十分である不都
合がある。 On the other hand, the applicant has proposed a method of manufacturing can bodies subjected to a neck-in process using a conventional double seaming device, as shown in Japanese Patent Application Laid-Open No. 58-35027. That is,
As shown in Fig. 2A, a can lid Y having an outer diameter smaller than the inner diameter of the can body X is fitted onto the can body X, and a chuck d matching the inner diameter of the chuck wall portion a of the can lid Y is fitted.
The can body X is fitted to the chuck wall portion a, and a seaming process is performed to deform the can body X toward the chuck wall portion a, as shown in FIG. 2B, thereby forming a neck-in portion. However, when using this method, unlike the conventional method described above, the chuck wall portion a has a structure facing the can body X in a straight line, so relatively thin plastics,
When used in a can body made of paper or a laminate of these materials, there is a disadvantage that the pressure resistance is insufficient.
（解決しようとする問題点）
本発明は前記した従来方法の不都合を解消し、
缶胴のネツクイン部に缶蓋のチヤツクウオール部
を嵌合させ耐圧性を向上させたネツクイン加工缶
を常用の巻締機に適合させて能率よく製造するこ
とができる方法を提供しようとするものである。(Problems to be Solved) The present invention solves the above-mentioned disadvantages of the conventional method,
The purpose of the present invention is to provide a method that can efficiently manufacture a necked-in can that has improved pressure resistance by fitting the chuck wall part of the can lid into the necked-in part of the can body and can be adapted to a commonly used seaming machine. .
（問題を解決するための手段）
本発明は前記の問題を解決するためになされた
ものであつて、パネル面に連設するチヤツクウオ
ール部を該パネル面の外径より小径に形成し、該
チヤツクウオール部に連設する蓋フランジ部をパ
ネル面の外径よりも大径に形成した缶蓋と、該缶
蓋のパネル面の外径と一致する内径を有し端縁を
僅かに外方へ屈曲させた缶胴とを用い、前記缶蓋
を前記缶胴に被嵌させて前記端縁を前記フランジ
部内面に押し当てる力を缶胴に加える一方、該フ
ランジ部外面に該端縁の力に坑じる力を加えなが
ら巻締加工を施して、該端縁の近傍において缶胴
に前記チヤツクウオール部外面に向う屈曲部を形
成し、更に巻締加工を進行させて前記屈曲部をチ
ヤツクウオール部外面に沿つて一体として巻締部
を形成すると共に該巻締部の外面を缶胴外径以内
の位置に形成したことを特徴とする。(Means for Solving the Problems) The present invention has been made to solve the above-mentioned problems, and includes forming a chuck wall part connected to a panel surface to have a smaller diameter than the outer diameter of the panel surface, and A can lid in which a lid flange connected to the can lid is formed to have a larger diameter than the outside diameter of the panel surface, and the can lid has an inside diameter that matches the outside diameter of the panel surface, and the edge is bent slightly outward. A force is applied to the can body by fitting the can lid onto the can body and pressing the edge against the inner surface of the flange portion, while applying a force to the outer surface of the flange portion against the force of the edge. A seaming process is performed while applying a force to form a bent part toward the outer surface of the chuck wall part in the vicinity of the edge, and the seaming process is further advanced to form a bent part toward the outer surface of the chuck wall part in the vicinity of the edge. It is characterized in that a seaming part is integrally formed along the can body, and the outer surface of the seaming part is formed at a position within the outer diameter of the can body.
（実施例）
本発明の実施の一例を示す第３図及び第４図に
従つて更に詳説する。(Example) A further detailed explanation will be given with reference to FIGS. 3 and 4 showing an example of implementation of the present invention.
第３図における１はアルミニウム等の金属製缶
蓋、２は紙財を基質とした複合材料からなる缶胴
を示す。 In FIG. 3, reference numeral 1 indicates a can lid made of metal such as aluminum, and reference numeral 2 indicates a can body made of a composite material using paper goods as a substrate.
本発明に用いる缶蓋１はそのチヤツクウオール
部３の外径R1をパネル面４の外径R2より小径に
形成し凹入した形状とし該チヤツクウオール部３
に連設する蓋フランジ部５の径R3をパネル面４
の外径R2より大径に形成したものである。また
本発明に用いる缶胴２は、その内径を缶蓋１のパ
ネル面４の外径で一致させ、その開口の端縁６は
僅かに外方へ屈曲形成されたものである。 The can lid 1 used in the present invention has an outer diameter R 1 of the chuck wall portion 3 smaller than an outer diameter R 2 of the panel surface 4 and has a recessed shape.
The diameter R 3 of the lid flange portion 5 connected to the panel surface 4
It is formed to have a larger diameter than the outer diameter R 2 of. Further, the can body 2 used in the present invention has an inner diameter matched with an outer diameter of the panel surface 4 of the can lid 1, and an edge 6 of the opening thereof is formed to be slightly bent outward.
第４図Ａ〜Ｄは、本発明の缶蓋を２重巻締した
製造工程を示す。まず、第４図Ａ示の如く缶蓋１
を缶胴２に被嵌させ、この状態において、嵌蓋１
の蓋フランジ部５の内面に缶胴２に端縁６が当接
し、更にパネル面４は缶胴２の内面に当接してお
り該缶蓋１にはチヤツクウオール部３の内面に当
接するシーミング回転チヤツク７が装着され、他
方、缶胴２の底部はリフター（図示しない）に昇
降自在に支持され端縁６に垂直に加えられる力に
坑じる状態にされる。 FIGS. 4A to 4D show a manufacturing process in which the can lid of the present invention is double-sealed. First, as shown in Figure 4A, can lid 1
is fitted onto the can body 2, and in this state, the fitting lid 1 is
The edge 6 of the can body 2 is in contact with the inner surface of the lid flange portion 5 of the can body 2, and the panel surface 4 is in contact with the inner surface of the can body 2. A chuck 7 is attached, while the bottom of the can body 2 is supported by a lifter (not shown) so as to be able to rise and fall so as to resist a force applied perpendicularly to the edge 6.
この状態で第４図Ｂ示の如く、第１巻示ロール
８の当り面が蓋フランジ部５の外面に当接し、僅
かに外方へ屈曲された端縁６に押し下げる力を加
え、端縁６近傍の缶胴に２チヤツクウオール部３
の外面側に沿う屈曲部９を生じさせる。次いで第
４図Ｃ示の如く、蓋フランジ部５は第１巻締ロー
ル８のシーミングロールグループ１０に沿つて巻
締加工が施されると、蓋屈曲部９はチヤツクウオ
ール部３に沿う状態となり、更に第１巻締ロール
８の顎部１１により押し込まれてチヤツクウオー
ル部３と一体化された状態となる。この際、該屈
曲部９は、缶胴２の内径を狭める方向に変形され
るため屈曲部９内面にシワが生じたり、内面に被
覆したラミネート層が剥離し易い状態になる傾向
を生じるが、ネツクイン部を形成するチヤツクウ
オール部３の外面１２と顎部１１とにより挟圧さ
れる部分にあつては、この部分の缶胴２の紙材の
基質が周方向に圧縮されることによつて回避され
る。 In this state, as shown in FIG. 4B, the contact surface of the first winding roll 8 contacts the outer surface of the lid flange portion 5, applies a downward force to the slightly outwardly bent edge 6, and 6. 2 chuck wall part 3 on the can body near the can body.
A bent portion 9 is formed along the outer surface side of. Next, as shown in FIG. 4C, when the lid flange portion 5 is seamed along the seaming roll group 10 of the first seaming roll 8, the lid bent portion 9 is brought into a state along the chuck wall portion 3. Then, it is further pushed in by the jaw portion 11 of the first seaming roll 8 and becomes integrated with the chuck wall portion 3. At this time, the bent portion 9 is deformed in a direction that narrows the inner diameter of the can body 2, so wrinkles may occur on the inner surface of the bent portion 9, and the laminate layer coated on the inner surface tends to peel off easily. In the case of a portion that is pinched by the outer surface 12 of the chuck wall portion 3 and the jaw portion 11 that form the neck-in portion, this can be avoided by compressing the paper substrate of the can body 2 in this portion in the circumferential direction. be done.
次いで第４図Ｄ示の如く、第２巻締ロール１３
によつて更に巻締加工を進行させ、そのシーミン
グロールグループ１４によつて２重巻締部１５の
形成を完了すると共に該巻締部１５の外面を缶胴
２外径以内の位置に形成する。 Next, as shown in FIG. 4D, the second seaming roll 13
The seaming process is further advanced by the seaming roll group 14, and the formation of the double seam part 15 is completed by the seaming roll group 14, and the outer surface of the seam part 15 is formed at a position within the outer diameter of the can body 2. do.
以上の全工程において、缶胴２の端縁６は第
１、第２巻締ロール８，１３の当り面及びシーミ
ングロールグループ１０，１４によつて缶胴２の
外面位置と略同一の位置に維持されるように蓋フ
ランジ部５を介して力が加えられているのが、蓋
フランジ部５の先端部内面に施されたシール用の
ラバー層を剥離したり損傷することがなく、２重
巻締部１５のシール性を損なうことがない。 In all of the above processes, the edge 6 of the can body 2 is located at approximately the same position as the outer surface of the can body 2 due to the contact surfaces of the first and second seaming rolls 8 and 13 and the seaming roll groups 10 and 14. The fact that the force is applied through the lid flange portion 5 so as to maintain the temperature is that the sealing rubber layer applied to the inner surface of the tip portion of the lid flange portion 5 is not peeled off or damaged. The sealing performance of the heavy seam portion 15 is not impaired.
前記実施例にあつては、缶蓋の巻締を２重巻締
により行つたものを示したがセミダブル、又はク
リンプの巻締による場合も本発明の目的を防げな
い。 In the embodiment described above, the can lid was tightened by double tightening, but the object of the present invention cannot be avoided even if the can lid is tightened by semi-double or crimp tightening.
（発明の効果）
以上の説明から明らかなように、本発明による
ときは、パネル面に連設するチヤツクウオール部
を該パネル面の外径より小径に形成し、該チヤツ
クウオール部に連設する蓋フランジ部をパネル面
の外径より大径に形成した缶蓋と該缶蓋のパネル
面の外径と一致させた内径を有し端縁を僅かに外
方へ屈曲させた缶胴を用い、前記缶蓋を前記缶胴
に被嵌させて前記端縁を前記フランジ部内面に押
し当てる力を缶胴に加える一方、該フランジ部外
面に該端縁の力に坑じる力を加えながら巻締加工
を施して、該端縁の近傍において缶胴にチヤツク
ウオール部外面に沿う屈曲部を形成し更に巻締加
工を進行させて前記屈曲部をチヤツクウオール部
外面に沿つて一体とした巻締部を形成すると共
に、該巻締部の外面を缶胴外径以内の位置に形成
するようにした。従つて、ネツクイン加工される
のは専ら缶胴のであるからその加工も通常の巻締
工程において行うことができ、格別のネツクイン
マシンを用いることなく従来の巻締機を利用して
行うことがでる。またその際、缶蓋のチヤツクウ
オール部を支持するシーム回転チヤツクもパネル
面の外径より小径としたチヤツクウオール部内面
に当接する周面を備えるものであれば足るのでネ
ツクイン、巻締加工の完了後にあつても簡単に缶
蓋より脱離させる構成のものが採用できネツクイ
ン加工ときま締加工が連続し行うことができると
して缶胴のネツクイン部に缶蓋のチヤツクウオー
ル部を嵌合させた構造となるので耐圧性に優れた
ネツクイン加工缶を製造効率よく提供する効果が
ある。(Effects of the Invention) As is clear from the above description, according to the present invention, the chuck wall portion connected to the panel surface is formed to have a smaller diameter than the outer diameter of the panel surface, and the lid flange connected to the chuck wall portion is formed to have a smaller diameter than the outer diameter of the panel surface. A can lid having a diameter larger than the outer diameter of the panel surface, and a can body having an inner diameter that matches the outer diameter of the panel surface of the can lid and whose edges are slightly bent outward, are used. A can lid is fitted onto the can body, and a force is applied to the can body to press the edge against the inner surface of the flange portion, while a force is applied to the outer surface of the flange portion to counteract the force of the edge, and the seam is tightened. Processing is performed to form a bent portion along the outer surface of the chuck wall portion in the can body near the edge, and further seaming processing is performed to form a seamed portion in which the bent portion is integrated along the outer surface of the chuck wall portion. At the same time, the outer surface of the seaming portion is formed at a position within the outer diameter of the can body. Therefore, since it is only the can body that is subjected to the net-in process, the process can be carried out in the normal seaming process, and can be carried out using a conventional seaming machine without using a special net-in machine. Out. In addition, in this case, the seam rotating chuck that supports the chuck wall part of the can lid can be attached only after the neck-in and seaming processes are completed, as long as it has a circumferential surface that comes into contact with the inner surface of the chuck wall part and has a smaller diameter than the outside diameter of the panel surface. The structure is such that the chuck wall part of the can lid is fitted into the neck-in part of the can body, so that the can body can be easily removed from the can lid, and the neck-in process and tightening process can be performed continuously. This has the effect of efficiently manufacturing and providing NETSUIN-processed cans with excellent pressure resistance.
第１図及び第２図は、従来の製造法を説明する
ための線図、第３図及び第４図は、本発明の実施
の一例を示すもので、第３図は、巻締加工前の状
態を示す断面図、第４図は、製造工程を説明する
ための線図である。
１……缶蓋、２……缶胴、３……チヤツクウオ
ール部、４……パネル面、５……蓋フランジ部、
６……端縁。
FIGS. 1 and 2 are diagrams for explaining the conventional manufacturing method, FIGS. 3 and 4 show an example of the implementation of the present invention, and FIG. FIG. 4 is a diagram for explaining the manufacturing process. 1...Can lid, 2...Can body, 3...Chick wall part, 4...Panel surface, 5...Lid flange part,
6...Edge.
Claims (1)
パネル面の外径より小径に形成し、該チヤツクウ
オール部に連設する蓋フランジ部をパネル面の外
径よりも大径に形成した缶蓋と、該缶蓋のパネル
面の外径と一致する内径を有し端縁を僅かに外方
へ屈曲させた缶胴とを用い、前記缶蓋を前記缶胴
に被嵌させて前記端縁を前記フランジ部内面に押
し当てる力を缶胴に加える一方、該フランジ部外
面に該端縁の力に坑じる力を加えながら巻締加工
を施して、該端縁の近傍において缶胴に前記チヤ
ツクウオール部外面に向う屈曲部を形成し、更に
巻締加工を進行させて前記屈曲部をチヤツクウオ
ール部外面に沿つて一体とした巻締部を形成する
と共に該巻締部の外面を缶胴外径以内の位置に形
成したことを特徴とするネツクイン加工缶の製造
法。1. A can lid in which a chuck wall part connected to a panel surface is formed to have a smaller diameter than the outer diameter of the panel surface, and a lid flange part connected to the chuck wall part is formed to have a larger diameter than the outer diameter of the panel surface; A can body having an inner diameter that matches the outer diameter of the panel surface of the can lid and whose edge is slightly bent outward is used, and the can lid is fitted onto the can body, and the edge is connected to the flange. The chuck wall portion is applied to the can body in the vicinity of the edge by applying a force to the can body to press it against the inner surface of the flange portion, while applying a force to the outer surface of the flange portion to resist the force of the edge. A bent portion facing the outer surface is formed, and the seaming process is further progressed to form a seamed portion that integrates the bent portion along the outer surface of the chuck wall portion, and the outer surface of the seamed portion is formed within the outer diameter of the can body. A method for manufacturing a netsuquin-processed can, characterized in that it is formed in a position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14227084A JPS6123533A (en) | 1984-07-11 | 1984-07-11 | Production of neck-in worked can |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14227084A JPS6123533A (en) | 1984-07-11 | 1984-07-11 | Production of neck-in worked can |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6123533A JPS6123533A (en) | 1986-02-01 |
| JPH0364215B2 true JPH0364215B2 (en) | 1991-10-04 |
Family
ID=15311447
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14227084A Granted JPS6123533A (en) | 1984-07-11 | 1984-07-11 | Production of neck-in worked can |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6123533A (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6160441A (en) * | 1984-09-03 | 1986-03-28 | 昭和プロダクツ株式会社 | Composite can and manufacture thereof |
| JPS6188927A (en) * | 1984-10-09 | 1986-05-07 | Showa Prod Kk | Production of compound can |
| JPH0335828A (en) * | 1989-07-01 | 1991-02-15 | Maeda Seisakusho:Kk | Machine and method for multiple seaming |
| US7380684B2 (en) | 1999-12-08 | 2008-06-03 | Metal Container Corporation | Can lid closure |
| US8490825B2 (en) | 1999-12-08 | 2013-07-23 | Metal Container Corporation | Can lid closure and method of joining a can lid closure to a can body |
| US6419110B1 (en) | 2001-07-03 | 2002-07-16 | Container Development, Ltd. | Double-seamed can end and method for forming |
| JP6342308B2 (en) * | 2014-11-19 | 2018-06-13 | キリン株式会社 | Can winding method, first winding roll and can winding device |
-
1984
- 1984-07-11 JP JP14227084A patent/JPS6123533A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6123533A (en) | 1986-02-01 |
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