JP3400804B2 - Method and apparatus for winding can lid - Google Patents
Method and apparatus for winding can lidInfo
- Publication number
- JP3400804B2 JP3400804B2 JP21850291A JP21850291A JP3400804B2 JP 3400804 B2 JP3400804 B2 JP 3400804B2 JP 21850291 A JP21850291 A JP 21850291A JP 21850291 A JP21850291 A JP 21850291A JP 3400804 B2 JP3400804 B2 JP 3400804B2
- Authority
- JP
- Japan
- Prior art keywords
- winding
- lid
- container
- resin layer
- heating
- 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 - Fee Related
Links
Description
【０００１】[0001]
【産業上の利用分野】本発明は、缶容器への缶蓋の二重
巻締めを行う缶蓋の巻締方法及びその装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a can lid winding method and apparatus for double-tapping a can lid around a can container.
【０００２】[0002]
【従来の技術】従来、飲料等を内容物とする缶容器は、
缶蓋が二重巻締めされて内容物が缶容器内に密封される
ことが知られている。一般に、前記の缶蓋や缶容器の内
面には、腐食等を防止するために、熱硬化型のエポキシ
フェノール樹脂層や熱可塑性のポリエチレンテレフタレ
ート等のポリエステル樹脂層が設けられている。また、
缶容器の密封性を向上するために、二重巻締めされた部
分の缶蓋と缶容器との間には、シーリングコンパウンド
が介在されている。2. Description of the Related Art Conventionally, can containers containing beverages, etc.
It is known that the can lid is double wrapped to seal the contents within the can container. Generally, a thermosetting epoxy phenol resin layer or a thermoplastic polyester resin layer such as polyethylene terephthalate is provided on the inner surface of the can lid or the can container in order to prevent corrosion. Also,
In order to improve the sealing property of the can container, a sealing compound is interposed between the can lid and the can container in the double-wound portion.
【０００３】シーリングコンパウンドは、缶蓋のシーミ
ングパネルからシーミングウォールにかけてのカール部
の裏面側に塗布されている。缶蓋へのシーリングコンパ
ウンドの塗布作業は、缶蓋の製造ラインにおいてライニ
ングマシンによって行われる。The sealing compound is applied to the back side of the curl portion from the seaming panel of the can lid to the seaming wall. The coating operation of the sealing compound on the can lid is performed by a lining machine in the can lid manufacturing line.
【０００４】このようにしてシーリングコンパウンドが
塗布された缶蓋は、缶容器に巻締られることによって巻
締時の押圧によって缶蓋と缶容器との間に圧着されて密
封される。The can lid coated with the sealing compound in this way is wound around the can container, and is pressed and sealed between the can lid and the can container by the pressure applied during the winding.
【０００５】しかし、シーリングコンパウンドの缶蓋へ
の塗布作業は、缶蓋と缶容器との巻締部に対応して缶蓋
のシーミングパネルからシーミングウォールにかけての
カール部に確実に塗布しなければならず高精度な塗布が
要求される。このため、ライニングマシンは比較的高価
となり、また、その設置場所が必要となるため缶蓋の製
造ラインが大規模化する不都合がある。更に、シーリン
グコンパウンド自身の内容物のフレーバーへの影響もあ
る。However, in applying the sealing compound to the can lid, the curling portion from the seaming panel of the can lid to the seaming wall must be surely applied in correspondence with the winding portion of the can lid and the can container. Therefore, high precision coating is required. For this reason, the lining machine becomes relatively expensive, and a place for installing the lining machine is required, so that there is an inconvenience that the manufacturing line of the can lid becomes large-scaled. In addition, there is an effect on the flavor of the contents of the sealing compound itself.
【０００６】そこで、ライニングマシンによるシーリン
グコンパウンドの塗布作業を排し、缶蓋の内面側に設け
られている熱可塑性合成樹脂層を、巻締時に加熱して軟
化或いは溶融化させ、缶蓋と缶容器との間で密着させて
缶容器を密封することが考えられる。これにより、缶蓋
の製造ラインにおいてライニングマシンが排され、シー
リングコンパウンドの塗布が不必要となるため低コスト
で且つ効率のよい缶蓋の製造を行うことができる。Therefore, the coating work of the sealing compound by the lining machine is eliminated, and the thermoplastic synthetic resin layer provided on the inner surface side of the can lid is heated at the time of winding to be softened or melted, and the can lid and the can. It is conceivable that the can container is sealed by closely contacting with the container. As a result, the lining machine is eliminated in the can lid manufacturing line, and the sealing compound is not required to be applied, so that the can lid can be manufactured efficiently at low cost.
【０００７】このような方法を実施する際には、従来の
缶蓋の二重巻締めにおいては、缶蓋の第１の巻締めと第
２の巻締めとが連続して行われるために、二重巻締めが
完了してからしか加熱することができない。この場合、
二重巻締めの後に熱可塑性合成樹脂層を軟化或いは溶融
化する方法によるときには、該樹脂の加熱時間を長くす
る必要があり、加熱時間が充分でないと充分な密封性が
得られない不都合がある。When performing such a method, in the conventional double winding of the can lid, the first winding and the second winding of the can lid are continuously performed, It can be heated only after the double winding is completed. in this case,
When the method of softening or melting the thermoplastic synthetic resin layer after double winding is used, it is necessary to lengthen the heating time of the resin, and if the heating time is not sufficient, sufficient sealing property cannot be obtained. .
【０００８】そこで、第１の巻締めと第２の巻締めとを
夫々独立して行うことにより、第１の巻締めと第２の巻
締めとの間において缶蓋の巻締部を加熱し、これにより
短時間での加熱軟化を可能とし、その後の第２の巻締め
による圧着によって充分な密封性が得られることを知見
した。Therefore, by performing the first winding tightening and the second winding tightening independently, the winding portion of the can lid is heated between the first winding tightening and the second winding tightening. It has been found that this enables heating and softening in a short time, and sufficient sealing property can be obtained by the subsequent pressure bonding by the second winding.
【０００９】[0009]
【発明が解決しようとする課題】従って、本発明は、缶
蓋を巻締めつつ巻締部の加熱が可能であり、缶蓋にシー
リングコンパウンド等を塗布することなく密封性の高い
巻締を行うことができる缶蓋の巻締方法及びその装置を
提供することを目的とする。Therefore, according to the present invention, it is possible to heat the winding portion while winding the can lid, and to perform the winding with a high sealing property without applying a sealing compound or the like to the can lid. An object of the present invention is to provide a method and apparatus for winding a can lid that can be used.
【００１０】[0010]
【課題を解決するための手段】かかる目的を達成するた
めに、本発明の方法は、缶容器への缶蓋の二重巻締めを
行う缶蓋の巻締方法であって、少なくとも巻締カール部
の内面側に熱可塑性樹脂層が設けられた缶蓋を缶容器に
被冠した後に缶容器の上縁部に缶蓋の周縁部を巻き込む
第１の巻締めを行う第１巻締工程と、該第１巻締工程に
よって巻締められた缶蓋の巻締部を加熱して前記樹脂層
を軟化或いは溶融化させる加熱工程と、該加熱工程によ
って前記樹脂層が軟化或いは溶融化された状態で缶蓋の
巻締部を圧着する第２の巻締めを行いつつ巻締部を冷却
する第２巻締工程とを備えたことを特徴とする。In order to achieve the above object, the method of the present invention is a method for winding a can lid by double winding the can lid on a can container, and at least a curling curl. The first lid for winding the can lid provided with the thermoplastic resin layer on the inner surface side of the portion after the can lid is capped with the peripheral edge of the can lid around the upper edge of the can container . A winding step, a heating step of heating the winding portion of the can lid wound in the first winding step to soften or melt the resin layer, and the heating step softens or melts the resin layer. Of the can lid in the liquefied state
Cooling the seaming portion while have a row a second tightening crimping the seaming portion
Characterized in that a second seaming step of.
【００１１】上記の方法において、前記缶蓋の熱可塑性
樹脂層は、熱可塑性ポリエステル樹脂とすることが好ま
しい。In the above method, the thermoplastic resin layer of the can lid is preferably a thermoplastic polyester resin.
【００１２】また、本発明の装置は、缶容器への缶蓋の
二重巻締めを行う缶蓋の巻締装置であって、少なくとも
巻締カール部の内面側に熱可塑性樹脂層が設けられた缶
蓋を缶容器に被冠した後に缶容器の上縁部に缶蓋の周縁
部を巻き込む第１の巻締めを行う第１巻締手段と、該第
１巻締手段によって巻締められた缶蓋の巻締部を加熱し
て前記樹脂層を軟化或いは溶融化させる加熱手段と、前
記樹脂層が軟化或いは溶融化された状態で缶蓋の巻締部
を圧着する第２の巻締めを行いつつ巻締部を冷却する第
２巻締手段とを備えることを特徴とする。Further, the apparatus of the present invention is a can lid winding device for performing double winding of a can lid onto a can container, wherein a thermoplastic resin layer is provided at least on the inner surface side of the winding curl portion. After covering the can lid with the can lid, the top edge of the can
A first seaming means for performing a first tightening involving parts, and heating means for softening or melting of the resin layer by heating the seamed portion of the can lid is seamed by the first seaming means , The canning part of the can lid with the resin layer softened or melted
And a second winding means for cooling the winding portion while performing the second winding for crimping .
【００１３】[0013]
【作用】本発明の缶蓋の巻締方法及びその装置によっ
て、缶容器に缶蓋を巻締める場合は、先ず、少なくとも
巻締カール部の内面側に熱可塑性樹脂層が設けられた缶
蓋を缶容器に被冠した後、第１巻締手段によって缶蓋の
第１巻締工程を行う。次いで、加熱手段によって巻締部
を加熱して前記樹脂層を軟化或いは溶融化する加熱工程
を行う。続いて、第２巻締手段によって缶蓋の第２巻締
工程を行う。前記加熱工程の加熱手段による加熱によっ
て、缶蓋の巻締部の樹脂層が軟化或いは溶融化された状
態で第２巻締工程を行うことにより、缶蓋と缶容器との
間隙を樹脂層で密着させ、巻締部の密封性を向上させ
る。更に、第２巻締手段によって第２の巻締めが行われ
つつ巻締部が冷却され、樹脂層が缶蓋と缶容器とを密着
した状態で凝固させて巻締部の密封状態を維持する。When the can lid winding method and apparatus according to the present invention is used to wind the can lid around the can container, first, at least the can lid having the thermoplastic resin layer provided on the inner surface side of the winding curl portion is closed. After the can container is crowned, the first winding process of the can lid is performed by the first winding means. Then, a heating step is performed in which the winding portion is heated by the heating means to soften or melt the resin layer. Then, the second winding step of the can lid is performed by the second winding means. By performing the second tightening step in a state where the resin layer of the winding portion of the can lid is softened or melted by heating by the heating means in the heating step, the gap between the can lid and the can container is covered with the resin layer. Adheres closely and improves the sealing performance of the winding part. Further, the second winding means performs the second winding, and the winding portion is cooled, and the resin layer solidifies the can lid and the can container in a close contact state to maintain the sealed state of the winding portion. .
【００１４】また、前記缶蓋の熱可塑性樹脂層は、熱可
塑性ポリエステル樹脂とすることにより、比較的低い温
度で容易に軟化して、迅速な第２巻締工程を可能とす
る。Further, the thermoplastic resin layer of the can lid is made of a thermoplastic polyester resin, so that it is easily softened at a relatively low temperature to enable a quick second winding step.
【００１５】[0015]
【実施例】本発明の一実施例を図面に基づいて説明す
る。DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to the drawings.
【００１６】図１は本実施例の缶蓋の巻締装置を示す概
略説明図、図２は第１の巻締における缶容器の状態を断
面示する説明図、図３は加熱状態を断面示する説明図、
図４は第２の巻締における缶容器の状態を断面示する説
明図、図５は第１の巻締めにおける巻締部の断面説明
図、図６は第２の巻締めにおける巻締部の断面説明図で
ある。FIG. 1 is a schematic explanatory view showing a can lid winding device of the present embodiment, FIG. 2 is an explanatory view showing a state of a can container in the first winding, and FIG. 3 is a sectional view showing a heated state. Explanatory diagram,
FIG. 4 is an explanatory view showing a cross section of the state of the can container in the second winding, FIG. 5 is a sectional explanatory view of the winding tightening portion in the first winding, and FIG. 6 is a winding tightening portion in the second winding. FIG.
【００１７】本実施例の巻締装置Ａは、図１に概略を示
すように、缶容器Ｘに内容物を充填する図示しない充填
装置から連続供給される該缶容器Ｘに缶蓋Ｙを二重巻締
めするものである。As shown schematically in FIG. 1, the winding device A of this embodiment has two can lids Y attached to a can container X continuously supplied from a filling device (not shown) for filling the contents of the can container X. It is tightened with heavy winding.
【００１８】図中、１は充填装置によって内容物を充填
された缶容器Ｘを直線状に水平に所定速度で搬送する第
１缶容器搬送手段、２は無端で略楕円状に回動して缶容
器Ｘを搬送する第２缶容器搬送手段、３は該第２缶容器
搬送手段２に対向してその上方に設けられた缶蓋Ｙを搬
送する缶蓋搬送手段、４は前記第２缶容器搬送手段２が
缶容器Ｘを直線状に搬送する往路の搬送方向に平行に設
けられた第１巻締手段、５は前記第２缶容器搬送手段２
が缶容器Ｘを直線状に搬送する復路の搬送方向に平行に
設けられた第２巻締手段、６は第１巻締手段４と第２巻
締手段５との間に設けられた加熱手段を示す。また、図
１において、７は前記缶蓋搬送手段３に缶蓋Ｙを供給す
る缶蓋供給ターレット、８は該缶蓋供給ターレット７に
缶蓋Ｙを供給する缶蓋供給装置である。In the figure, 1 is a first can container conveying means for linearly and horizontally conveying a can container X filled with contents by a filling device at a predetermined speed, and 2 is an endless substantially elliptical rotary member. A second can container carrying means for carrying the can container X, 3 is a can lid carrying means for carrying a can lid Y provided above and facing the second can container carrying means 2, and 4 is the second can. The first winding means 5, which is provided in parallel with the forward transport direction in which the container transporting device 2 linearly transports the can container X, is the second can container transporting device 2.
Is a second winding means provided parallel to the conveying direction of the return path for linearly conveying the can container X, and 6 is a heating means provided between the first winding means 4 and the second winding means 5. Indicates. Further, in FIG. 1, 7 is a can lid supply turret for supplying the can lid Y to the can lid conveying means 3, and 8 is a can lid supply device for supplying the can lid Y to the can lid supply turret 7.
【００１９】なお、本実施例は、本出願人による特開昭
２−１６９１３８号公報において実施されている缶蓋の
巻締装置と同様の構成を基本とし、第１巻締手段４と第
２巻締手段５との間の円弧軌道に沿って加熱手段６を新
たに設けたものである。従って、先の出願の巻締装置に
対応する部分については簡単な説明にとどめる。The present embodiment is based on the same structure as the can lid winding device implemented in Japanese Patent Laid-Open No. 169138/1990 by the present applicant. The heating means 6 is newly provided along the arcuate path between the winding means 5 and the winding means 5. Therefore, only the part corresponding to the winding device of the previous application will be described briefly.
【００２０】また、本実施例においては、図５に示すよ
うに、二重巻締めが行われる缶容器Ｘの内外面両側及び
缶蓋Ｙの内面側には、熱可塑性合成樹脂層ｗ1 ，ｗ2 が
設けられている。本発明における缶蓋Ｙの樹脂層ｗ
2 は、ポリエステル樹脂によって形成することが好まし
く、特に、巻締を行うために缶蓋Ｙの周縁部に形成され
た巻締カール部の内面側においては、前記樹脂層ｗ
2 は、単層でも多層でも差し支えないが、最外表面は共
重合ポリエステル樹脂等の比較的軟化温度の低い樹脂と
することが好ましい。従って、本実施例においては、缶
蓋Ｙの樹脂層ｗ2 を共重合ポリエステル樹脂とした。ま
た、缶容器Ｘの樹脂層ｗ1 をポリエチレンテレフタレー
トとした。更に、缶蓋Ｙには、シーリングコンパウンド
が塗布されていないものが使用されている。Further, in this embodiment, as shown in FIG. 5, the thermoplastic synthetic resin layer w 1 , is formed on both inner and outer surfaces of the can container X and the inner surface of the can lid Y, which are double-wound. w 2 is provided. Resin layer w of the can lid Y in the present invention
2 is preferably formed of a polyester resin, and in particular, on the inner surface side of the winding curl portion formed on the peripheral portion of the can lid Y for winding, the resin layer w is formed.
Although 2 may be a single layer or a multilayer, the outermost surface is preferably a resin having a relatively low softening temperature such as a copolyester resin. Therefore, in this example, the resin layer w 2 of the can lid Y was made of a copolyester resin. The resin layer w 1 of the can container X was polyethylene terephthalate. Further, as the can lid Y, one which is not coated with the sealing compound is used.
【００２１】次に、前記の各部を説明する。Next, each of the above parts will be described.
【００２２】前記第１缶容器搬送手段１は、図１に示す
ように、充填装置から直線状に延びて第２缶容器搬送手
段２と並走するように設けられている。該第１缶容器搬
送手段１は、缶容器Ｘを爪片９で係止して直線状に搬送
する。As shown in FIG. 1, the first can container carrying means 1 is provided so as to extend linearly from the filling device and run in parallel with the second can container carrying means 2. The first can container transporting means 1 locks the can container X with a claw piece 9 and transports it in a straight line.
【００２３】前記第２缶容器搬送手段２は、缶容器Ｘを
回転自在に支持し、前記第１缶容器搬送手段１に次第に
接近して該第１缶容器搬送手段１から缶容器Ｘを各別に
受け取って搬送する。The second can-container conveying means 2 rotatably supports the can-container X and gradually approaches the first can-container conveying means 1 to move the can-container X from the first can-container conveying means 1. Receive and transport separately.
【００２４】前記缶蓋搬送手段３は、図１乃至図４に示
すように、回転自在且つ昇降自在に缶蓋Ｙを保持するシ
ーミングチャック１０が設けられている。該シーミング
チャック１０は、後述する加熱手段６からの加熱による
変形等を防止するために耐熱性の高い材料で形成されて
おり、本実施装置においては、その材料をセラミック材
とした。そして、第１缶容器搬送手段１から第２缶容器
搬送手段２に缶容器Ｘが受け渡されたとき、シーミング
チャック１０が下降して缶蓋Ｙを缶容器Ｘに被冠する。As shown in FIGS. 1 to 4, the can lid transfer means 3 is provided with a seaming chuck 10 which holds the can lid Y rotatably and vertically. The seaming chuck 10 is formed of a material having high heat resistance in order to prevent deformation and the like due to heating from the heating means 6 which will be described later. In this embodiment, the material is a ceramic material. Then, when the can container X is transferred from the first can container carrying means 1 to the second can container carrying means 2, the seaming chuck 10 descends and the can lid Y is capped on the can container X.
【００２５】前記第１巻締手段４は、図１及び図２に示
すように、往路に沿って第２缶容器搬送手段２が缶容器
Ｘを搬送する位置に対応して直線状に設けられ、前記シ
ーミングチャック１０に回転自在に支持された缶蓋Ｙの
巻締部Ｚを押圧する第１の巻締用のシーミンググルーブ
１１を備えている。As shown in FIGS. 1 and 2, the first tightening means 4 is provided linearly along the forward path at a position where the second can container carrying means 2 carries the can container X. A first winding seaming groove 11 for pressing a winding portion Z of a can lid Y rotatably supported by the seaming chuck 10 is provided.
【００２６】また、前記加熱手段６は、図１及び図３に
示すように、第２缶容器搬送手段２による缶容器Ｘの搬
送軌道が往路から復路に向かう途中の円弧軌道に沿って
円弧形状に延設され、セラミック製のフレーム１２と、
該フレーム１２内に収納された高周波加熱コイル１３
と、該高周波加熱コイル１３内で冷却水が循環される冷
却部１４とを備えている。高周波加熱コイル１３は、誘
導磁界によって缶容器Ｘ及び缶蓋Ｙの樹脂層ｗ1 ，ｗ2
を軟化するのに必要な温度を缶容器Ｘ及び缶蓋Ｙに発生
せしめ、冷却部１４は高周波加熱コイル１３を冷却す
る。Further, as shown in FIGS. 1 and 3, the heating means 6 has an arc shape along the arcuate path along which the transfer path of the can container X by the second can container transfer means 2 goes from the outward path to the return path. And a ceramic frame 12
High frequency heating coil 13 housed in the frame 12
And a cooling unit 14 in which cooling water is circulated in the high frequency heating coil 13. The high frequency heating coil 13 causes the resin layers w 1 and w 2 of the can container X and the can lid Y to be generated by the induction magnetic field.
The temperature required to soften the can is generated in the can container X and the can lid Y, and the cooling unit 14 cools the high frequency heating coil 13.
【００２７】更に、前記第２巻締手段５は、図１及び図
４に示すように、該缶容器Ｘが第２缶容器搬送手段２に
より直線状に搬送される復路側に設けられ、前記シーミ
ングチャック１０と共に回転しつつ通過する缶蓋Ｙの巻
締部を押圧する第２の巻締用のシーミンググルーブ１５
を備えている。Further, as shown in FIGS. 1 and 4, the second winding means 5 is provided on the return path side where the can container X is linearly conveyed by the second can container conveying means 2. A second winding seaming groove 15 for pressing the winding portion of the can lid Y passing while rotating together with the seaming chuck 10.
Is equipped with.
【００２８】次に、以上のような構成からなる本実施装
置Ａにおける缶蓋の巻締め作動を説明する。Next, the winding operation of the can lid in the present embodiment A having the above-mentioned structure will be described.
【００２９】缶容器Ｘは充填装置で内容物が充填された
後に、図１に示すように、第１缶容器搬送手段１の爪片
９に搬送方向の後側から係止されて直線状に摺動搬送さ
れる。他方、缶蓋Ｙは缶蓋供給装置８から供給され、缶
蓋供給ターレット７により各缶蓋搬送手段３に供給され
る。そして、缶蓋Ｙは、第２缶容器搬送手段２と共に略
楕円軌道に沿って回動される。After the contents of the can container X are filled by the filling device, as shown in FIG. 1, the can container X is linearly locked by the claw piece 9 of the first can container carrying means 1 from the rear side in the carrying direction. Sliding conveyance. On the other hand, the can lid Y is supplied from the can lid supply device 8 and supplied to each can lid conveying means 3 by the can lid supply turret 7. Then, the can lid Y is rotated along with the second can container carrying means 2 along a substantially elliptical orbit.
【００３０】次いで、該第２缶容器搬送手段２は、第１
缶容器搬送手段１に次第に接近し、これと平行する位置
に移動される。このとき、第１缶容器搬送手段１によっ
て搬送された缶容器Ｘが第２缶容器搬送手段２に受け渡
され、その受渡しに伴って缶容器Ｘの上方に、前記缶蓋
搬送手段３によって搬送された缶蓋Ｙが缶容器Ｘに被冠
される。そして、図２に示すように、缶容器Ｘに被冠さ
れた缶蓋Ｙを第１巻締手段４によって巻締める。これに
よって、缶蓋Ｙは第１の巻締めが行われ、図５に示すよ
うに、缶蓋Ｙの樹脂層ｗ2 と缶容器Ｘの樹脂層ｗ1 とが
対向して当接される。Next, the second can container transporting means 2 is
The can container carrying means 1 is gradually approached and moved to a position parallel to the can container carrying means 1. At this time, the can container X conveyed by the first can container conveying means 1 is delivered to the second can container conveying means 2, and accompanying the delivery, is conveyed above the can container X by the can lid conveying means 3. The formed can lid Y is capped on the can container X. Then, as shown in FIG. 2, the can lid Y capped on the can container X is fastened by the first fastening means 4. As a result, the can lid Y is subjected to the first tightening, and as shown in FIG. 5, the resin layer w 2 of the can lid Y and the resin layer w 1 of the can container X face each other and are brought into contact with each other.
【００３１】第１の巻締めが行われた缶容器Ｘは、図１
に示すように、前記第２缶容器搬送手段２によって搬送
されつつ方向を変えて円弧軌道に移り、その巻締部Ｚが
加熱手段によって加熱される。これにより、図５に示す
第１の巻締めの状態で、缶蓋Ｙの樹脂層ｗ2 と缶容器Ｘ
の樹脂層ｗ1 とが共に加熱によって軟化或いは溶融され
る。The can container X subjected to the first winding is shown in FIG.
As shown in FIG. 3, while being transported by the second can container transporting means 2, the direction is changed to move to an arcuate orbit, and the winding portion Z is heated by the heating means. As a result, in the first tightening state shown in FIG. 5, the resin layer w 2 of the can lid Y and the can container X are
And the resin layer w 1 thereof are softened or melted by heating.
【００３２】次いで、缶蓋Ｙの樹脂層ｗ2 と缶容器Ｘの
樹脂層ｗ1 とが軟化或いは溶融された状態で、缶容器Ｘ
が復路の直線軌道へ移行する。この復路では、図４に示
すように、第２巻締手段５によって第２の巻締めが直線
状に搬送されながら行われ、図６に示すように、缶容器
Ｘに缶蓋Ｙの二重巻締めが完了する。このとき、熱軟化
状態の缶蓋Ｙの樹脂層ｗ2 と缶容器Ｘの樹脂層ｗ1 とが
互いに密着して缶容器Ｘが密封される。同時に、第２巻
締手段５のシーミンググルーブ１５に圧着された巻締部
Ｚが該シーミンググルーブ１５によって放熱され、缶容
器Ｘの密封状態が確実に維持される。[0032] Then, in a state where the resin layer w 1 of the resin layer w 2 and the can container X of the can lid Y is softened or melted, can container X
Shifts to the return straight track. In this return path, as shown in FIG. 4, the second winding means 5 carries out the second winding operation while being conveyed in a straight line, and as shown in FIG. The tightening is completed. At this time, the resin layer w 2 of the can lid Y and the resin layer w 1 of the can container X that are in a heat-softened state are in close contact with each other, and the can container X is sealed. At the same time, the winding portion Z pressed to the seaming groove 15 of the second winding means 5 dissipates heat by the seaming groove 15 and the sealed state of the can container X is reliably maintained.
【００３３】その後、図１に示すように、缶蓋Ｙの巻締
めが完了した缶容器Ｘは搬出ターレット１６によって搬
出路１７から搬出される。Thereafter, as shown in FIG. 1, the can container X whose winding of the can lid Y is completed is carried out from the carry-out path 17 by the carry-out turret 16.
【００３４】なお、本発明は、２ピース缶、３ピース缶
等の缶容器への缶蓋の二重巻締を行うものであるが、３
ピース缶の場合においてはその胴部に重ね合わせ部が形
成され、その重ね合わせ部は厚く形成されるので、缶蓋
に設けられる樹脂層は比較的厚めに設定することが適し
ている。In the present invention, the can lid is double-wound onto a can container such as a two-piece can or a three-piece can.
In the case of a piece can, an overlapping portion is formed on the body and the overlapping portion is formed thick, so it is suitable to set the resin layer provided on the can lid relatively thick.
【００３５】[0035]
【発明の効果】以上のことから明らかなように、本発明
は、第１巻締工程と第２巻締工程との間に加熱工程が設
けられているので、第１の巻締めが施された巻締部を加
熱手段によって加熱して第２の巻締めを行うことができ
る。これにより、少なくとも巻締カール部の内面側に熱
可塑性樹脂層が設けられた缶蓋を使用することにより、
樹脂層を軟化させた状態で第２の巻締めを行って確実に
缶容器を密封することができる。しかも、第２巻締手段
によって巻締部が冷却されるので、缶蓋が巻締められた
缶容器の高い密封性を維持することができる。As is apparent from the above, according to the present invention, since the heating step is provided between the first winding step and the second winding step, the first winding step is performed. The second winding can be performed by heating the winding portion by the heating means. Thereby, by using a can lid provided with a thermoplastic resin layer at least on the inner surface side of the winding curl portion,
The can container can be reliably sealed by performing the second winding with the resin layer softened. Moreover, since the winding portion is cooled by the second winding means, it is possible to maintain high sealing performance of the can container with the can lid wound.
【００３６】従って、本発明によれば、缶蓋にシーリン
グコンパウンド等を塗布することなく密封性の高い巻締
めが可能となる缶蓋の巻締方法及びその装置を提供する
ことができる。Therefore, according to the present invention, it is possible to provide a can lid winding method and a can lid winding apparatus which can perform winding with high sealing performance without applying a sealing compound or the like to the can lid.
【図１】本実施例の缶蓋の巻締装置を示す概略説明図。FIG. 1 is a schematic explanatory view showing a can lid winding device of the present embodiment.
【図２】第１の巻締における缶容器の状態を断面示する
説明図。FIG. 2 is an explanatory view showing a cross section of the state of the can container in the first winding.
【図３】加熱状態を断面示する説明図。FIG. 3 is an explanatory view showing a heating state in section.
【図４】第２の巻締における缶容器の状態を断面示する
説明図。FIG. 4 is an explanatory view showing a cross section of the state of the can container in the second winding.
【図５】第１の巻締における巻締部の断面説明図。FIG. 5 is an explanatory cross-sectional view of a winding tightening portion in the first winding.
【図６】第２の巻締における巻締部の断面説明図。FIG. 6 is an explanatory cross-sectional view of a winding tightening portion in the second winding.
４…第１巻締手段、５…第２巻締手段、６…加熱手段、
Ａ…巻締装置、Ｘ…缶容器、Ｙ…缶蓋、ｗ1 ，ｗ2 …樹
脂層。4 ... 1st winding means, 5 ... 2nd winding means, 6 ... Heating means,
A ... seaming apparatus, X ... can container, Y ... can lid, w 1, w 2 ... resin layer.
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.7 識別記号 ＦＩ Ｂ６５Ｄ 53/06 Ｂ６５Ｄ 53/06 Ｚ (72)発明者 松島 浩二 埼玉県岩槻市鹿室839−１ 北海製罐株 式会社 研究開発本部内 (56)参考文献 特開 昭63−68233（ＪＰ，Ａ) 特開 昭55−20193（ＪＰ，Ａ) 特開 平２−46937（ＪＰ，Ａ) 実開 昭56−137838（ＪＰ，Ｕ) (58)調査した分野(Int.Cl.7，ＤＢ名) B21D 51/30 - 51/32 B21D 39/02 B65D 6/30 B65D 8/20 B65D 53/06 ─────────────────────────────────────────────────── ─── Continuation of front page (51) Int.Cl. 7 Identification code FI B65D 53/06 B65D 53/06 Z (72) Inventor Koji Matsushima 839-1 Kamuro, Iwatsuki City, Saitama Hokkai Seikan Co., Ltd. Research Within the Development Headquarters (56) Reference JP-A-63-68233 (JP, A) JP-A-55-20193 (JP, A) JP-A-2-46937 (JP, A) Actual development Sho-56-137838 (JP, A) U) (58) Fields investigated (Int.Cl. 7 , DB name) B21D 51/30-51/32 B21D 39/02 B65D 6/30 B65D 8/20 B65D 53/06
Claims (3)
巻締方法であって、 少なくとも巻締カール部の内面側に熱可塑性樹脂層が設
けられた缶蓋を缶容器に被冠した後に缶容器の上縁部に
缶蓋の周縁部を巻き込む第１の巻締めを行う第１巻締工
程と、 該第１巻締工程によって巻締められた缶蓋の巻締部を加
熱して前記樹脂層を軟化或いは溶融化させる加熱工程
と、 該加熱工程によって前記樹脂層が軟化或いは溶融化され
た状態で缶蓋の巻締部を圧着する第２の巻締めを行いつ
つ巻締部を冷却する第２巻締工程とを備えたことを特徴
とする缶蓋の巻締方法。1. A method of winding a can lid by double-winding the can lid onto the can container, wherein the can container is provided with a thermoplastic resin layer on at least an inner surface of a curling portion of the can. to the top edge of the can container after bears the
A first winding step of performing a first winding step of winding the peripheral portion of the can lid, and heating the winding portion of the can lid wound by the first winding step to soften or melt the resin layer . a heating step of the second tightening crimping the seamed portion of the can lid in a state in which the resin layer is softened or melted by heating process line at
And a second winding step of cooling the first winding portion .
テル樹脂からなることを特徴とする請求項１記載の缶蓋
の巻締方法。2. The can lid winding method according to claim 1, wherein the thermoplastic resin layer is made of a thermoplastic polyester resin.
巻締装置であって、 少なくとも巻締カール部の内面側に熱可塑性樹脂層が設
けられた缶蓋を缶容器に被冠した後に缶容器の上縁部に
缶蓋の周縁部を巻き込む第１の巻締めを行う第１巻締手
段と、 該第１巻締手段によって巻締められた缶蓋の巻締部を加
熱して前記樹脂層を軟化或いは溶融化させる加熱手段
と、 前記樹脂層が軟化或いは溶融化された状態で缶蓋の巻締
部を圧着する第２の巻締めを行いつつ巻締部を冷却する
第２巻締手段とを備えることを特徴とする缶蓋の巻締装
置。3. A can lid winding device for double-tightening a can lid to a can container, wherein the can lid is provided with a thermoplastic resin layer on at least the inner surface side of the winding curl portion. to the top edge of the can container after bears the
First winding means for performing first winding around the peripheral portion of the can lid, and heating the winding portion of the can lid wound by the first winding means to soften or melt the resin layer . Heating means, and the can lid winding with the resin layer softened or melted.
And a second winding means for cooling the winding portion while performing the second winding for crimping the portion .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21850291A JP3400804B2 (en) | 1991-08-29 | 1991-08-29 | Method and apparatus for winding can lid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21850291A JP3400804B2 (en) | 1991-08-29 | 1991-08-29 | Method and apparatus for winding can lid |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH07171645A JPH07171645A (en) | 1995-07-11 |
| JP3400804B2 true JP3400804B2 (en) | 2003-04-28 |
Family
ID=16720935
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP21850291A Expired - Fee Related JP3400804B2 (en) | 1991-08-29 | 1991-08-29 | Method and apparatus for winding can lid |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3400804B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
-
1991
- 1991-08-29 JP JP21850291A patent/JP3400804B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH07171645A (en) | 1995-07-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US3524779A (en) | Method of making wound tubular products | |
| US3528867A (en) | Method for selective heat sealing or joining of materials | |
| US3949896A (en) | Seamed article | |
| US3819085A (en) | Lap side seam of metal, tubular body and method for making same | |
| US4106167A (en) | Frictional method and machine for seaming tubular sections | |
| EP1444135B1 (en) | Method for induction sealing a plastic part to a composite container | |
| JP3400804B2 (en) | Method and apparatus for winding can lid | |
| TWI754004B (en) | Method and device for manufacturing peel-off lids as well as a peel-off lid | |
| JP4375704B2 (en) | Method for manufacturing curl opening of metal can | |
| CN87106865A (en) | Composite wafer overlapping edges method and the tubular back boxing made from the method | |
| US6077377A (en) | Process for production of tubes out of composite cardboard, device for carrying out the process and composite material used therein | |
| US4303032A (en) | Process for forming can bodies | |
| US4451316A (en) | Process for preparation of metal vessels | |
| JP2679488B2 (en) | Method for manufacturing body member for laminated tube container | |
| JP2002102967A (en) | Tapelike resin film covering method to can barrel joint part | |
| JPS6249132B2 (en) | ||
| JP3116496B2 (en) | Application method of heat sealable resin | |
| JPS61244731A (en) | Method of bonding plastic label | |
| JPS59145114A (en) | Manufacture of paper tube coated with heat shrinkable synthetic resin film | |
| KR100261507B1 (en) | Method of manufacturing resin film coated metal sheet | |
| EP1247751B1 (en) | Crown for secondary fermentation | |
| JP3221890B2 (en) | Manufacturing method of welded can body | |
| JPH0380427B2 (en) | ||
| JPH06312748A (en) | Can lid and production thereof | |
| JP4298013B2 (en) | Manufacturing method of welded can body |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| S111 | Request for change of ownership or part of ownership |
Free format text: JAPANESE INTERMEDIATE CODE: R313111 |
|
| R350 | Written notification of registration of transfer |
Free format text: JAPANESE INTERMEDIATE CODE: R350 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20090221 Year of fee payment: 6 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20090221 Year of fee payment: 6 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20100221 Year of fee payment: 7 |
|
| LAPS | Cancellation because of no payment of annual fees |