JPS58194531A - Method of fixing end plate in paper can - Google Patents
Method of fixing end plate in paper canInfo
- Publication number
- JPS58194531A JPS58194531A JP57078054A JP7805482A JPS58194531A JP S58194531 A JPS58194531 A JP S58194531A JP 57078054 A JP57078054 A JP 57078054A JP 7805482 A JP7805482 A JP 7805482A JP S58194531 A JPS58194531 A JP S58194531A
- Authority
- JP
- Japan
- Prior art keywords
- paper
- end plate
- wall
- fitting part
- fixing end
- 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
Landscapes
- Making Paper Articles (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
この発明は、十分な気密性を備えて合成樹脂製の端板を
紙缶胴に固着することを目的としだ紙缶における端板固
着方法に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for fixing end plates in paper cans, the purpose of which is to fix end plates made of synthetic resin to paper can bodies with sufficient airtightness.
従来紙缶胴に合成樹脂製の端板な固着する方法としては
、キャップ状に成形した端板な合成樹脂の弾性ｌ利用し
て缶胴に嵌装する方法が知られているが、上記方法にお
いては端板と缶胴の壁面との間は当接のみであって固着
されないので、十分な気密性を得ることが困難であり、
気密性の信頼度も低かった。Conventionally, as a method of fixing end plates made of synthetic resin to paper can bodies, a method is known in which end plates formed into a cap shape are fitted onto the can body by utilizing the elasticity of the synthetic resin. In this case, the end plate and the wall of the can body are only in contact with each other and are not fixed, so it is difficult to obtain sufficient airtightness.
Confidence in airtightness was also low.
しかるにこの発明は、合成樹脂製の端板を紙缶胴の端部
に嵌装し、ついで前記嵌装部を加圧、加熱して端板と紙
缶胴とを熱溶着したので、簡単かつ確実に高い気密性を
備えて端板を缶胴に固着することが可能となり、前記従
来の問題点を解決したものである。However, in this invention, the end plate made of synthetic resin is fitted to the end of the paper can body, and the fitting part is then pressurized and heated to thermally weld the end plate and the paper can body. This makes it possible to securely secure the end plate to the can body with high airtightness, thus solving the above-mentioned conventional problems.
以下この発明を図面に示す実施例に基づいて説明する。The present invention will be described below based on embodiments shown in the drawings.
合成樹脂（例えばポリエチレン又はポリプロピレン）製
の端板ｌの外周部に断面逆Ｕ字状の嵌装部コを設げる。A fitting part 1 having an inverted U-shape in cross section is provided on the outer periphery of an end plate 1 made of synthetic resin (for example, polyethylene or polypropylene).
該嵌装部コは環状立上り壁／ａと該立上り壁／ａの上端
に連設された環状下向壁ｌｂとによって構成されている
。該嵌装部ユの幅は紙缶胴３の端部が遊嵌し得るように
定めである。The fitting portion ko is constituted by an annular rising wall /a and an annular downward wall lb connected to the upper end of the rising wall /a. The width of the fitting portion is determined so that the end portion of the paper can body 3 can be fitted loosely thereinto.
前記端板ｌの嵌装部２を紙缶胴３の端部に嵌装し、つい
で前記嵌装部を前記立上り壁／ａの内側および下向壁ｌ
ｂの外側より缶胴壁に加圧しつつ加熱して、紙缶胴３の
端部の内外両面と立上り壁ｌａの外壁面および下向壁／
ｂの内壁面とを密着させると共に、夫々の密着部を加熱
溶融して固着する。The fitting part 2 of the end plate l is fitted to the end of the paper can body 3, and then the fitting part is attached to the inside of the rising wall /a and the downward wall l.
The can body wall is heated while being pressurized from the outside of b, and the inner and outer surfaces of the end of the paper can body 3, the outer wall surface of the rising wall la, and the downward wall/
The inner wall surface of b is brought into close contact with the inner wall surface, and the respective contact portions are heated and melted to be fixed.
上記における端板ｌと紙缶胴３との熱溶着は、例えば第
３図に示す装置によって行なう。この装置は端板の立上
り壁／ａを内側より支持する内型／／と下向壁ｌｂを外
側より加圧する外型／２および前記内型ｌ／を固定する
筒状のチャックスピンドル１３、該チャックスピンドル
／３の中空部に摺動自在に装着された軸ＩＱの下端に固
定されたノックアウト／Ｓ１缶胴３を載置して昇降する
リフターバット／乙とより構成されており、前記内型７
ノおよび外型記外型／コは複数の割型で構成されており
、水平移動できるようになっている。The heat welding of the end plate l and the paper can body 3 in the above is performed, for example, by the apparatus shown in FIG. This device includes an inner mold // that supports the rising wall /a of the end plate from the inside, an outer mold /2 that presses the downward wall lb from the outside, and a cylindrical chuck spindle 13 that fixes the inner mold l/. It is composed of a lifter butt/B that lifts and lowers the knockout/S1 can body 3 fixed to the lower end of the shaft IQ that is slidably mounted in the hollow part of the chuck spindle/3, and 7
The outer mold and outer mold are composed of a plurality of split molds and can be moved horizontally.
この装置によって端板／の紙缶胴３への嵌装部を加圧、
加熱するには、第一図に示すように紙缶胴３へ端板ｌを
嵌装した後、す７ターパツト／６を上昇させて立上り壁
／ａの内側壁を内型ノーの外側壁に当接させる。次に外
型、ｌ−を第３図矢示／９のように移動させて嵌装部を
加圧する。ここで、前記内型ｌ／および外型、／コには
ヒーター／７が内蔵されているので、前記嵌装部は加圧
と同時に加熱され、端板ｌと紙缶胴３との当接部は熱溶
着される。熱溶着完了後、外型／コを矢示曜のように後
退させると共に、ノックアウト／Ｓおよびリフターバッ
ト／乙を下降させる。This device pressurizes the fitting part of the end plate/to the paper can body 3,
To heat the can, as shown in Figure 1, after fitting the end plate l to the paper can body 3, raise the stopper 6 and attach the inner wall of the rising wall/a to the outer wall of the inner mold no. Bring it into contact. Next, the outer mold l- is moved as shown by arrow /9 in FIG. 3 to pressurize the fitting part. Here, since a heater /7 is built into the inner mold l/ and the outer mold /c, the fitting part is heated at the same time as pressure is applied, and the end plate l and the paper can body 3 come into contact with each other. The parts are heat welded. After the heat welding is completed, move the outer mold back as shown by the arrow, and lower the knockout S and lifter butt.
上記実施例によれば、立上り壁／ａの内側および下向壁
／ｂの外側の両方より加熱したので、端板ｌと紙缶胴３
との当接面は全て熱溶着されるので、固着強度および気
密性が向上するが必要により、いずれか−側より加熱し
てもよい。According to the above embodiment, since heating was performed from both the inside of the rising wall /a and the outside of the downward wall /b, the end plate l and the paper can body 3
Since all contact surfaces are thermally welded, the adhesion strength and airtightness are improved, but if necessary, heating may be applied from either side.
この発明の実施に用いる端板の形状は上記実施例のもの
に限定されることはない。例えば第を図に示すように溝
コの深さな浅（すると共に、下向１
壁／ｂの上方に環状壁ダを立設したものとしても同様で
ある。また缶胴３に巻曲部３ａが形成しである場合には
、嵌装部の溝コの幅を広（したもの（第Ｓ図）を用いる
。また、紙缶胴３の外側、内側又は内外両側に合成樹脂
層を設けておけば紙缶胴と端板との固着強度および気密
性が向上する。The shape of the end plate used in carrying out this invention is not limited to that of the above embodiment. For example, as shown in the figure, the depth of the groove is shallow (and the annular wall is erected above the downward 1 wall/b. 3a, use one in which the width of the groove in the fitting part is widened (Fig. If this is done, the adhesion strength and airtightness between the paper can body and the end plate will be improved.
すなわちこの発明によれば、合成樹脂製の端板を紙缶胴
の端部に嵌装し、ついで前記嵌装部を加圧、加熱して端
板と紙缶胴とを熱溶着により固着したので、紙缶胴とそ
の端板とは簡易な工程により高い気密性を備えて固着す
ることができる効果がある。That is, according to this invention, an end plate made of synthetic resin is fitted to the end of a paper can body, and then the fitting part is pressurized and heated to fix the end plate and the paper can body by heat welding. Therefore, the paper can body and its end plate can be bonded together with high airtightness through a simple process.
第７図はこの発明により端板を固着した缶の一部を切断
した正面図、第２図は同じく端板を缶胴に嵌装した状態
の一部を切断した正面図、第３図は同じ（加圧加熱工程
を示す一部を切断した正面／・・端板 ユ・・嵌装部
３・・紙缶胴／／・・内型 ／コ・・外型
特許出願人 日本製罐株式会社
代理人 鈴木正次
第３図
１３Fig. 7 is a partially cut-away front view of a can with end plates fixed according to the present invention, Fig. 2 is a partially cut-away front view of the can with the end plates fitted into the can body, and Fig. 3 is Same (partially cut front showing the pressurization and heating process/... End plate U... Fitting part 3... Paper can body//... Inner mold / Co./Outer mold Patent applicant Nippon Seikan Co., Ltd. Company agent Tadashi Suzuki 3 Figure 13
Claims (1)
前記嵌装部を加圧、加熱して端板と紙缶胴とを熱溶着に
より固着することを特徴とした紙缶における端板固着方
法 ユ 加熱は端板の紙缶胴への嵌装部の内外両側又はいず
れか−側より行なうことを特徴とする特許請求の範囲第
１項記載の紙缶における端板固着方法[Claims] l An end plate made of synthetic resin is fitted to the end of a paper can body, and then the fitted part is pressurized and heated to fix the end plate and paper can body by thermal welding. A method for fixing an end plate in a paper can, characterized in that heating is performed from both the inner and outer sides of the fitting portion of the end plate to the paper can body, or from either side. How to fix end plates in paper cans
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57078054A JPS58194531A (en) | 1982-05-10 | 1982-05-10 | Method of fixing end plate in paper can |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57078054A JPS58194531A (en) | 1982-05-10 | 1982-05-10 | Method of fixing end plate in paper can |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS58194531A true JPS58194531A (en) | 1983-11-12 |
Family
ID=13651133
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57078054A Pending JPS58194531A (en) | 1982-05-10 | 1982-05-10 | Method of fixing end plate in paper can |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58194531A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61244537A (en) * | 1985-04-24 | 1986-10-30 | 北海製罐株式会社 | Bonder |
| JPS62122004U (en) * | 1986-01-22 | 1987-08-03 | ||
| JPS62128822U (en) * | 1986-02-06 | 1987-08-14 |
-
1982
- 1982-05-10 JP JP57078054A patent/JPS58194531A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61244537A (en) * | 1985-04-24 | 1986-10-30 | 北海製罐株式会社 | Bonder |
| JPS62122004U (en) * | 1986-01-22 | 1987-08-03 | ||
| JPS62128822U (en) * | 1986-02-06 | 1987-08-14 |
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