JPH02104430A - Method and apparatus for forming can - Google Patents
Method and apparatus for forming canInfo
- Publication number
- JPH02104430A JPH02104430A JP25825188A JP25825188A JPH02104430A JP H02104430 A JPH02104430 A JP H02104430A JP 25825188 A JP25825188 A JP 25825188A JP 25825188 A JP25825188 A JP 25825188A JP H02104430 A JPH02104430 A JP H02104430A
- Authority
- JP
- Japan
- Prior art keywords
- mold
- frame
- diameter
- conveyor
- fixed position
- 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.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims description 7
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 6
- 239000010959 steel Substances 0.000 claims abstract description 6
- 238000000465 moulding Methods 0.000 claims description 15
- 238000003466 welding Methods 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000005028 tinplate Substances 0.000 description 1
- 230000037303 wrinkles Effects 0.000 description 1
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は缶の成形方法に関するものである、従来の技術
従来のこの種缶の成形方法としては例えば特公昭５４−
２９９４９号公報に開示されているものが公知である。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a method for molding cans.Prior art As a conventional method for molding cans of this type, for example,
The one disclosed in Japanese Patent No. 29949 is known.
同公報に開示されている方法および装置によれば、円筒
形の缶の内部に放射状に拡径可能な割り型を挿入し、こ
の割り型の内面のテーパ一部に軸を圧入して割り型を拡
径することにより割り型の外面が缶の内面を外方に押し
、缶をエキスバンド成形するようになっている。そして
、この従来例により得られる成形後の缶は胴体部の円周
方向に所定間隔の溝部のある円筒形を呈するものとなる
。According to the method and apparatus disclosed in the publication, a split mold whose diameter can be expanded radially is inserted into a cylindrical can, and a shaft is press-fitted into a tapered part of the inner surface of the split mold. By expanding the diameter of the mold, the outer surface of the split mold pushes the inner surface of the can outward, and the can is expanded into a mold. The molded can obtained by this conventional example has a cylindrical shape with grooves spaced at predetermined intervals in the circumferential direction of the body.
発明が解決しようとする課題
上記した従来例によれば成形された缶に割り型と割り型
との間の隙間の部分が缶の内面に当接しないことにより
筋状の模様が必ず付され、成形される缶のイメージが一
様に似たものとなり、変化に乏しいものとなっていた。Problems to be Solved by the Invention According to the above-mentioned conventional example, a striped pattern is inevitably formed on the molded can because the gap between the split molds does not come into contact with the inner surface of the can. The images of the cans that were formed were uniformly similar, with little variation.
また、前記割り型は缶の内面周方向に複数に分割されて
おり、この割り型を一体的に組み合わせるのに円筒状に
並べられた割り型の外周にゴムリングを嵌合させており
割り型の取り扱いに手間がかかるという問題があった。In addition, the split molds are divided into a plurality of parts in the direction of the inner circumference of the can, and in order to assemble the split molds into one, a rubber ring is fitted around the outer periphery of the split molds arranged in a cylindrical shape. There was a problem in that it took time and effort to handle.
本発明はこのような問題を解決するもので、変化に富ん
だ形状の缶を容易に得られ、かつ成形用金型の取り扱い
を容易に行なえるようにすることを目的とするものであ
る。The present invention is intended to solve these problems, and aims to make it possible to easily obtain cans with a wide variety of shapes and to facilitate the handling of molding molds.
課Ｕを解決するための手段
この問題を解決するために本発明は、円筒状に成形され
長平方向に沿う端部同志が接合された鋼板からなる缶の
長手方向一端側を支持した状態で他端側より缶の内部に
缶の内径よりも大なる外径を持つ金型を圧入して缶に適
当長さの膨らみ模様を形成するものである。また本発明
は、缶を成形位置に送り込む送り込み手段と、前記成形
位置において缶をチャックするチャック手段と、前記成
形位置でチャックされた缶に対し缶の長平方向に遠近移
動可能に駆動手段により支持され缶の内径よりも大なる
外径を持つ金型とを備えたものである。Means for Solving Section U In order to solve this problem, the present invention provides a can made of a steel plate that is formed into a cylindrical shape and whose ends along the longitudinal direction are joined together. A mold having an outer diameter larger than the inner diameter of the can is press-fitted into the can from the end side to form a bulge pattern of an appropriate length on the can. Further, the present invention provides a feeding means for feeding the can to the molding position, a chuck means for chucking the can at the molding position, and a driving means for supporting the chucked can at the molding position so as to be able to move near and far in the longitudinal direction of the can. and a mold having an outer diameter larger than the inner diameter of the can.
作用
この構成により、従来のような複数に分割された割り型
を用いることなく成形用金型の取り扱いを容易に行なえ
、金型の形状に応じて変化に富んだ形状の缶を容易に作
ることができる。Function: With this configuration, the molding mold can be easily handled without using a split mold divided into multiple parts as in the past, and cans with a wide variety of shapes can be easily produced depending on the shape of the mold. Can be done.
実施例
以下、本発明の一実施例について、図面に基づいて説明
する。EXAMPLE Hereinafter, an example of the present invention will be described based on the drawings.
第１図および第２図において、１は装置のフレームで、
このフレーム１にはこのフレーム１に対し上下両端が開
口の円筒状の缶２を送り込む送り込み手段３と、このフ
レーム１の定位置において缶２をチャックするチャック
手段４と、この定位置においてチャックされた缶２に圧
入して缶２を内方より押し拡げる拡径手段５と、この拡
径手段５によって拡径された缶２をフレーム１の外部に
送り出すコンベア６などを備えている。さらに詳しくは
前記送り込み手段３は図外の搬送経路から送られてきた
缶２を受は取りフレーム１の内方に送り込むコンベア７
とこのコンベア７の前端部に隣接され周囲に缶２のほぼ
半周が嵌入するほぼ半円形の凹部８を等間隔おきに多数
個形成され鉛直軸芯の周りで間欠回転するインデックス
プレート９からなる。１０は前記インデックスプレート
９を駆動する駆動ユニットである。また、前記チャック
手段４は前記フレーム１のほぼ中心の定位置においてイ
ンデックスプレート９の凹部８の１つに嵌入する缶２を
インデックスプレート９の凹部８との間で挟持する押さ
えプレート１１を駆動手段によりインデックスプレート
９に対し遠近移動自在に備えている０次に前記拡径手段
５は前記定位置で缶２に上方より圧入され缶２を拡径し
て成形する金型１２と、この金型１２の上端を支持し金
型１２を上下動させるシリンダー装置１３と、缶２から
金型１２を上方に引き抜くとき缶２が金型１２と一緒に
上方について動かないように缶２の上端を押さえるノッ
クアウトプレート１４と、このノックアウトプレート１
４を上下動させるシリンダー装置１５とからなる。なお
、この拡径手段５において、金型１２およびノックアウ
トプレート１４を上下動させるシリンダー装置１３．１
５の代りにカム機構などを備えた別の駆動源を用いても
良い、また、この拡径手段５において、前記インデック
スプレート９の凹部８と押さえプレート１１とで缶２を
挟持する定位置の下側で缶２の下端を受ける受は型１６
がばねによって上方に付勢されて設けられており、缶２
が金型１２によって一定以上の押圧力で下方に押された
とき缶２に無理な荷重がかからないように弾性支持され
るようになっている。さらに前記コンベア６は前記金型
１２による缶２の成形位置からインデックスプレート９
の回転方向に寄った位置に一端がインデックスプレート
９に連接して設けられており、他端側には駆動源１７か
らの駆動力が伝達されるようになっている。In FIGS. 1 and 2, 1 is the frame of the device;
This frame 1 includes a feeding means 3 for feeding a cylindrical can 2 with both upper and lower ends open to the frame 1, a chuck means 4 for chucking the can 2 at a fixed position on the frame 1, and a chuck means 4 for chucking the can 2 at a fixed position of the frame 1. The frame 1 includes a diameter expanding means 5 which press-fits into the can 2 and expands the can 2 from the inside, and a conveyor 6 which conveys the can 2 expanded in diameter by the diameter expanding means 5 to the outside of the frame 1. More specifically, the feeding means 3 is a conveyor 7 that picks up the cans 2 sent from a conveyance path (not shown) and feeds them into the inside of the frame 1.
The index plate 9 is adjacent to the front end of the conveyor 7, has a large number of approximately semicircular recesses 8 at equal intervals, into which approximately half the circumference of the can 2 is fitted, and rotates intermittently around a vertical axis. 10 is a drive unit that drives the index plate 9. Further, the chuck means 4 is a means for driving a holding plate 11 which clamps a can 2 fitted into one of the recesses 8 of the index plate 9 at a fixed position approximately in the center of the frame 1 between the can 2 and the recess 8 of the index plate 9. The diameter expanding means 5, which is movable near and far with respect to the index plate 9, is press-fitted into the can 2 from above at the fixed position, and includes a mold 12 for expanding and molding the can 2, and this mold. A cylinder device 13 supports the upper end of the can 12 and moves the mold 12 up and down, and presses the upper end of the can 2 so that the can 2 does not move upward together with the mold 12 when the mold 12 is pulled upward from the can 2. Knockout plate 14 and this knockout plate 1
4 and a cylinder device 15 that moves the cylinder up and down. In addition, in this diameter expanding means 5, a cylinder device 13.1 for vertically moving the mold 12 and the knockout plate 14 is used.
5 may be replaced by another drive source equipped with a cam mechanism or the like. Also, in this diameter expanding means 5, a fixed position where the can 2 is held between the recess 8 of the index plate 9 and the holding plate 11 is used. The receiver that receives the lower end of the can 2 on the lower side is a mold 16.
is biased upward by a spring, and the can 2
When the can 2 is pushed downward by the mold 12 with a pressing force above a certain level, the can 2 is elastically supported so that an unreasonable load is not applied to the can 2. Further, the conveyor 6 moves from the molding position of the can 2 by the mold 12 to the index plate 9.
One end is connected to the index plate 9 at a position near the rotational direction of the index plate 9, and the driving force from the driving source 17 is transmitted to the other end.
上記構成において、前記コンベア７およびインデックス
プレート９によって定位置に供給された缶２は前記金型
１２によって内方より押し拡げられ成形された後、前記
コンベア６によって送り出され、次の工程に供給される
。In the above configuration, the can 2 that is fed to a fixed position by the conveyor 7 and the index plate 9 is expanded and molded from the inside by the mold 12, and then sent out by the conveyor 6 and supplied to the next process. Ru.
前記缶２は鋼板２Ａ＜−例としてブリキ板）を材料とし
て円筒状に成形されて円筒の長手方向に沿う端部同志が
溶接にて接合されている。第３図〜第７図に成形工程を
示しており、第４図において１８は溶接部である。第５
図は前記金型１２によって成形された缶２を示している
が、缶２は長手方向に適当長さ円筒状に拡径されている
。２ａは元の管径部、２ｂは拡げられた管径部である。The can 2 is formed into a cylindrical shape using a steel plate 2A (eg, a tin plate), and the longitudinal ends of the cylinder are joined by welding. The forming process is shown in FIGS. 3 to 7, and 18 in FIG. 4 is a welded portion. Fifth
The figure shows a can 2 formed by the mold 12, and the can 2 is enlarged in diameter into a cylindrical shape by an appropriate length in the longitudinal direction. 2a is the original tube diameter portion, and 2b is the expanded tube diameter portion.
金型１２によって成形された後の缶２は両端の開口部が
閉若される前に第６図に示すように外方に円弧状に反り
曲げられ、その後一端開口部にフルオープンエンド方式
もしくはパーシャルエンド方式の蓋１９を取り付け、そ
の後他端開口部より缶２内に内容物を詰めて他端開口部
に底蓋を取り付けるのである。The can 2 after being formed by the mold 12 is bent outward into an arc shape as shown in FIG. 6 before the openings at both ends are closed, and then the opening at one end is bent in a full open end type or A partial-end type lid 19 is attached, and then the contents are filled into the can 2 through the opening at the other end, and a bottom lid is attached to the opening at the other end.
ところで、前記金型１２の形状としては第８図に示すよ
うな円形や、第９図に示すような多角形など種々考えら
れ、これらの金型１２によって第１０図〜第１２図に示
すような形状の缶２が成形される。By the way, various shapes of the mold 12 can be considered, such as a circle as shown in FIG. 8 and a polygon as shown in FIG. A can 2 having a shape is formed.
第１０図に示すものは第８図に示す円形の金型１２によ
って成形されたものであり、また第１１図に示すものは
第９図に示す多角形の金型１２によって成形されたもの
である。第９図に示すような多角形の金型１２を用いて
成形する場合、金型１２の最小径ｒが元の缶径よりも大
なる場合は第１１図に示すように多角形の角と角の間の
部分Ａがフラットな状態に形成されるが、金型１２の最
小径ｒが元の缶径よりも小なる場合は第１２図に示すよ
うに多角形の角と角の間の部分Ｂに缶２の長手方向に波
状の模様が形成されることになる。このように角と角の
間の部分Ｂに缶２の長手方向に波状の模様が形成される
理由としては、金型１２の最大径Ｒの部分によって押し
拡げられた角の部分Ｃの長手方向の寸法は元の缶２の長
手方向の寸法よりも小さくなり、角と角の間の部分Ｂの
内径が金型１２の最小径ｒよりも大きいことからその部
分Ｂの長平方向の寸法は元の缶２の長手方向の寸法を維
持しようとする。The one shown in FIG. 10 was molded using the circular mold 12 shown in FIG. 8, and the one shown in FIG. 11 was molded using the polygonal mold 12 shown in FIG. be. When molding is performed using a polygonal mold 12 as shown in FIG. 9, if the minimum diameter r of the mold 12 is larger than the original can diameter, the corners of the polygon as shown in FIG. The part A between the corners is formed flat, but if the minimum diameter r of the mold 12 is smaller than the original can diameter, the part A between the corners of the polygon is formed as shown in FIG. A wavy pattern is formed in the portion B in the longitudinal direction of the can 2. The reason why a wavy pattern is formed in the longitudinal direction of the can 2 in the portion B between the corners is that the wavy pattern is formed in the longitudinal direction of the corner portion C that is expanded by the portion of the maximum diameter R of the mold 12. is smaller than the original longitudinal dimension of the can 2, and since the inner diameter of the portion B between the corners is larger than the minimum diameter r of the mold 12, the longitudinal dimension of that portion B is smaller than the original can 2. attempts to maintain the longitudinal dimensions of the can 2.
そこで角と角の間の部分Ｂの長手方向の寸法が角の部分
Ｃの長手方向の寸法に合うように皺が寄ることにより図
に示すような波状の模様が形成される。Then, wrinkles are formed so that the longitudinal dimension of the portion B between the corners matches the longitudinal dimension of the corner portion C, thereby forming a wavy pattern as shown in the figure.
なお、金型１２の形状としては上記以外のものも考えら
れ、また複数種類の金型を用いて缶に円形の膨らみ模様
や角形の膨らみ模様などを長手方向に複数段形成するこ
とも可能である。The shape of the mold 12 may be other than the above, and it is also possible to use multiple types of molds to form multiple stages of circular bulge patterns, square bulge patterns, etc. on the can in the longitudinal direction. be.
また、上記実施例においては成形装置は竪型であるが、
横型（缶の両端開口を横に向け、横方向から缶°を拡径
するようにしたもの）でも実施可能である。また、使用
される缶は円筒の長手方向に沿う端部同志が溶接にて接
合されているが、溶接以外に接着剤により接合するよう
にしても良い。Furthermore, although the molding device is vertical in the above embodiment,
A horizontal type (a can in which both openings of the can are oriented sideways and the diameter of the can is expanded from the side) is also possible. Moreover, although the ends of the can used in the cylindrical longitudinal direction are joined by welding, they may be joined by adhesive instead of welding.
さらに、缶２の一端開口部をフルオープンエンド方式も
しくはパーシャルエンド方式の蓋１９で密封する代りに
、アルミ箔などで密封シールしても良く、あるいはオー
プン状態のままにしておいても良い。Furthermore, instead of sealing the opening at one end of the can 2 with a full open end type or partial end type lid 19, it may be hermetically sealed with aluminum foil or the like, or it may be left open.
発明の効果
以上のように本発明によれば、従来のような複数に分割
された割り型を用いることなく成形用金型の収り扱いを
容易に行なえ、金型の形状に応じて変化に富んだ形状の
缶を容易に作ることができる。Effects of the Invention As described above, according to the present invention, it is possible to easily store and handle a molding die without using a split mold divided into a plurality of parts as in the past, and the mold can be changed according to the shape of the mold. Cans with various shapes can be easily made.
図面は本発明の一実施例を示すもので、第１図は成形装
置の正面図、第２図は同平面図、第３図〜第７図は缶の
成形工程の概略斜視図、第８図および第９図はそれぞれ
異なった形状の金型を示す斜視図、第１０図〜第１２図
は成形された缶の斜視図である。
１・・・フレーム、２・・・缶、３・・・送り込み手段
、４・・・チャック手段、５・・・拡径手段、６・・・
コンベア、１２・・・金型、１３・・・シリンダー装置
、２人・・・鋼板、１８・・・溶接部、Ａ、Ｂ・・・角
と角の間の部分、Ｃ・・・角の部分。
代理人 森 本 義 弘
第２図
第す図
第７図
ｉｆ？
第Ｓ因
第９図
第１θ図The drawings show one embodiment of the present invention, and FIG. 1 is a front view of the molding device, FIG. 2 is a plan view thereof, FIGS. 3 to 7 are schematic perspective views of the can molding process, and FIG. 9 and 9 are perspective views showing molds of different shapes, respectively, and FIGS. 10 to 12 are perspective views of molded cans. DESCRIPTION OF SYMBOLS 1...Frame, 2...Can, 3...Feeding means, 4...Chuck means, 5...Diameter expansion means, 6...
Conveyor, 12... Mold, 13... Cylinder device, 2 people... Steel plate, 18... Welded part, A, B... Part between corners, C... Corner part. Agent Yoshihiro Morimoto Figure 2 Figure 7 If? S factor Figure 9 Figure 1θ
Claims (1)
れた鋼板からなる缶の長手方向一端側を支持した状態で
他端側より缶の内部に缶の内径よりも大なる外径を持つ
金型を圧入して缶に適当長さの膨らみ模様を形成する缶
の成形方法。 ２、円筒状に成形され長手方向に沿う端部同志が接合さ
れた鋼板からなる缶を成形位置に送り込む送り込み手段
と、前記成形位置において缶をチャックするチャック手
段と、前記成形位置でチャックされた缶に対し缶の長手
方向に遠近移動可能に駆動手段により支持され缶の内径
よりも大なる外径を持つ金型とを備えた缶の成形装置。[Scope of Claims] 1. With one longitudinal end of the can made of a steel plate formed into a cylindrical shape and joined to each other along the longitudinal direction, one longitudinal end of the can is supported, and the other end is inserted into the can from the inner diameter of the can. A can forming method in which a mold with a large outer diameter is press-fitted to form a bulge pattern of an appropriate length on the can. 2. A feeding means for feeding a can made of a steel plate formed into a cylindrical shape and joined at longitudinal ends to a forming position; a chuck means for chucking the can at the forming position; and a chuck means for chucking the can at the forming position; A can molding device comprising a mold that is supported by a driving means so as to be movable near and far in the longitudinal direction of the can and has an outer diameter larger than the inner diameter of the can.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63258251A JPH0677782B2 (en) | 1988-10-13 | 1988-10-13 | Can forming equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63258251A JPH0677782B2 (en) | 1988-10-13 | 1988-10-13 | Can forming equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02104430A true JPH02104430A (en) | 1990-04-17 |
| JPH0677782B2 JPH0677782B2 (en) | 1994-10-05 |
Family
ID=17317632
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63258251A Expired - Fee Related JPH0677782B2 (en) | 1988-10-13 | 1988-10-13 | Can forming equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0677782B2 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5902086A (en) * | 1996-10-21 | 1999-05-11 | Daiwa Can Company | Process for manufacturing a deformed metal can having a reshaped can body wall |
| JP2005510364A (en) * | 2001-11-16 | 2005-04-21 | エスイーゲー カンテック ゲゼルシャフト ミット ベシュレンクテル ハフツング ウント コンパニー コマンディートゲゼルシャフト | Apparatus and method for expanding and forming can body |
| JP2010504857A (en) * | 2006-06-26 | 2010-02-18 | アルコア インコーポレイテッド | Container manufacturing method |
| US9327338B2 (en) | 2012-12-20 | 2016-05-03 | Alcoa Inc. | Knockout for use while necking a metal container, die system for necking a metal container and method of necking a metal container |
| US9707615B2 (en) | 2010-08-20 | 2017-07-18 | Alcoa Usa Corp. | Shaped metal container and method for making same |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5429949A (en) * | 1977-08-10 | 1979-03-06 | Denki Kogyo Co Ltd | Multiple wave matching system |
| JPS60204449A (en) * | 1984-03-30 | 1985-10-16 | 東洋製罐株式会社 | Method of molding tapered can |
-
1988
- 1988-10-13 JP JP63258251A patent/JPH0677782B2/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5429949A (en) * | 1977-08-10 | 1979-03-06 | Denki Kogyo Co Ltd | Multiple wave matching system |
| JPS60204449A (en) * | 1984-03-30 | 1985-10-16 | 東洋製罐株式会社 | Method of molding tapered can |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5902086A (en) * | 1996-10-21 | 1999-05-11 | Daiwa Can Company | Process for manufacturing a deformed metal can having a reshaped can body wall |
| JP2005510364A (en) * | 2001-11-16 | 2005-04-21 | エスイーゲー カンテック ゲゼルシャフト ミット ベシュレンクテル ハフツング ウント コンパニー コマンディートゲゼルシャフト | Apparatus and method for expanding and forming can body |
| KR100971468B1 (en) * | 2001-11-16 | 2010-07-22 | 에스이게 칸텍 게엠베하 운트 코. 카게 | Apparatus and method for spreading and shaping can bodies |
| JP2010504857A (en) * | 2006-06-26 | 2010-02-18 | アルコア インコーポレイテッド | Container manufacturing method |
| US9707615B2 (en) | 2010-08-20 | 2017-07-18 | Alcoa Usa Corp. | Shaped metal container and method for making same |
| US10464707B2 (en) | 2010-08-20 | 2019-11-05 | Alcoa Usa Corp. | Shaped metal container and method for making same |
| US9327338B2 (en) | 2012-12-20 | 2016-05-03 | Alcoa Inc. | Knockout for use while necking a metal container, die system for necking a metal container and method of necking a metal container |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0677782B2 (en) | 1994-10-05 |
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