JPH09226705A - Heating device of paper container for liquid - Google Patents
Heating device of paper container for liquidInfo
- Publication number
- JPH09226705A JPH09226705A JP8036565A JP3656596A JPH09226705A JP H09226705 A JPH09226705 A JP H09226705A JP 8036565 A JP8036565 A JP 8036565A JP 3656596 A JP3656596 A JP 3656596A JP H09226705 A JPH09226705 A JP H09226705A
- Authority
- JP
- Japan
- Prior art keywords
- paper container
- hot air
- liquid paper
- liquid
- heating device
- 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
Landscapes
- Package Closures (AREA)
- Closing Of Containers (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、果汁や清酒などを
収納する切妻屋根形の液体用紙容器の製箱、充填工程に
おいて、仮折りした液体用紙容器の底部成形性の向上を
図るための液体用紙容器の加熱装置に関するものであ
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a liquid for improving the bottom formability of a temporarily folded liquid paper container in the process of making and filling a gable roof liquid paper container for storing fruit juice, sake and the like. The present invention relates to a heating device for a paper container.
【０００２】[0002]
【従来の技術】従来より、切妻屋根形などの液体用紙容
器を構成する熱可塑性樹脂層を積層した紙積層材料につ
いては、例えば表面側から、熱可塑性樹脂層であるポリ
エチレン層（３０μｍ）と紙材料層（３１０ｇ／ｍ2 ）
とポリエチレン層（２５μｍ）とガスバリアー層として
のアルミニウム箔（９μｍ）とポリエステルフィルム
（１２μｍ）と熱可塑性樹脂であるポリエチレン層（６
０μｍ）とを、適宜に積層した紙積層材料などが、広く
用いられている。2. Description of the Related Art Conventionally, a paper laminated material in which a thermoplastic resin layer which constitutes a gable roof type liquid paper container is laminated is, for example, a polyethylene layer (30 μm) which is a thermoplastic resin layer and a paper Material layer (310 g / m 2 )
A polyethylene layer (25 μm), an aluminum foil (9 μm) as a gas barrier layer, a polyester film (12 μm), and a polyethylene layer (6) which is a thermoplastic resin.
0 μm) is appropriately used, and a paper laminated material or the like is appropriately used.
【０００３】このような、表面に熱可塑性樹脂層を積層
した紙積層材料製の切妻屋根形などの液体用紙容器の製
箱、充填工程において、仮折りした液体用紙容器の底部
や頂部の密封する部分の熱圧着を容易にするために、こ
の密封する部分の近傍に移動して位置させる加熱装置に
備えた加熱オーブンにより熱風を吹きつけて、表面の熱
可塑性樹脂層を溶かし、密封する部分を合わせ接合する
作業が行われている。そこで、液体用紙容器の底部の密
封方法の一例を示すならば、図３（ａ）は液体用紙容器
の底部部分を示すもので、第１パネル２１と第２パネル
２２と第３パネル２３と第４パネル２４とのり代片２５
と、各パネル上端部に密封する部分２６，２６を設け、
第２パネル２２と第４パネル２４には仮折り用の折り罫
２８，２８が設けられている。まず液体用紙容器の製
箱、充填工程において、図示はしないが第１パネル２１
とのり代２５とをサック貼りし、仮折りされた底部と頂
部が開口した角筒状の液体用紙容器２０とする。次に、
この液体用紙容器２０の底部の密封する部分２６，２６
に内外面より熱風を吹きつけて表面の熱可塑性樹脂層を
溶かし、図３（ｂ）に示すように密封する部分２６，２
６を接合し折り込み、密封する。さらに図３（ｃ）に示
すように、この上方から熱押圧しすると共に、第２パネ
ル２２と第４パネル２４の折り罫２８，２８に沿って折
り込みシールし、液体用紙容器の底部を密封することが
できる。In the process of making and filling a liquid paper container such as a gable roof made of a paper laminated material having a thermoplastic resin layer laminated on the surface thereof, the bottom and top of the temporarily folded liquid paper container are sealed. In order to facilitate thermocompression bonding of the part, hot air is blown by a heating oven provided in a heating device which is moved to and located near the sealing part to melt the thermoplastic resin layer on the surface and to seal the part. Work is underway to join them together. Therefore, if an example of a method of sealing the bottom of the liquid paper container is shown, FIG. 3A shows the bottom portion of the liquid paper container, and includes a first panel 21, a second panel 22, a third panel 23, and a third panel 23. 4 panel 24 and glue strip 25
And the sealing parts 26, 26 are provided at the upper end of each panel,
The second panel 22 and the fourth panel 24 are provided with folding lines 28, 28 for temporary folding. First, in the box making and filling process of the liquid paper container, although not shown, the first panel 21
The paste margin 25 is sack-bonded to form the liquid paper container 20 in the shape of a square tube with the bottom and the top being temporarily folded. next,
Sealing portions 26, 26 at the bottom of the liquid paper container 20
Hot air is blown from inside and outside to melt the thermoplastic resin layer on the surface, and the portions 26 and 2 to be sealed as shown in FIG.
6 is joined, folded, and sealed. Further, as shown in FIG. 3 (c), heat is applied from above and the bottom of the liquid paper container is sealed by folding and sealing along the folding lines 28, 28 of the second panel 22 and the fourth panel 24. be able to.
【０００４】この前記液体用紙容器の表面の熱可塑性樹
脂層を溶かすには、図２（ａ）に示すような、加熱装置
１０の加熱オーブン１１を液体用紙容器２０の仮折りさ
れた底部の密封する部分２６，２６に臨ませて、加熱オ
ーブン１１から熱風を前記紙容器の密封される部分２
６，２６に向かって吹き付けることによって行われる。
すなわち、図２（ｂ）に示すように、加熱オーブン１１
は液体用紙容器２０の底部の端部である、密封する部分
２６，２６を内外から囲むような、熱風供給口１２を有
するセンターオーブン１１Ａとサイドオーブン１１Ｂ，
１１Ｂの構造となっている。このセンターオーブン１１
Ａのコーナー部を含む全周には、液体用紙容器２０の内
面側の熱可塑性樹脂層に熱風を吹きつけるために、多数
の熱風吹き出し用孔ｂ，ｂ…が設けられており、また、
サイドオーブン１１Ｂ，１１Ｂには、液体用紙容器２０
の前記密封する部分２６，２６に臨む面に外側から熱風
を吹きつけるため、図２（ｃ）に示すように、多数の熱
風吹き出し用孔ｂ，ｂ…を設け、その中央部分には略方
形状に無孔領域１５を形成したものである。すなわち、
サイドオーブン１１Ｂ，１１Ｂの熱風吹き出し用孔は、
密封される部分を外側から補助するための熱風孔Ｈｂ
と、紙容器の底部のシールのための熱風孔Ｔｂとに熱風
吹きつけ用孔を共用していた。In order to melt the thermoplastic resin layer on the surface of the liquid paper container, a heating oven 11 of a heating device 10 as shown in FIG. 2A is used to seal the temporarily folded bottom of the liquid paper container 20. The hot air from the heating oven 11 is exposed to the parts 26, 26 to be sealed and the part 2 of the paper container is sealed.
6,26 by spraying.
That is, as shown in FIG. 2B, the heating oven 11
Is a center oven 11A and a side oven 11B having a hot air supply port 12 that surrounds the sealed portions 26, 26, which are the ends of the bottom of the liquid paper container 20, from inside and outside.
It has a structure of 11B. This center oven 11
A large number of hot air blowing holes b, b ... Are provided in the entire circumference including the corner portion of A for blowing hot air to the thermoplastic resin layer on the inner surface side of the liquid paper container 20, and
In the side ovens 11B and 11B, the liquid paper container 20
As shown in FIG. 2 (c), a large number of hot-air blowing holes b, b ... Are provided in order to blow hot air from the outside on the surfaces of the sealing parts 26, 26 facing each other, and the central part thereof has a substantially square shape. The non-hole area 15 is formed in the shape. That is,
The hot air blowing holes of the side ovens 11B and 11B are
Hot air holes Hb for assisting the sealed portion from the outside
And the hot air blow hole Tb for sealing the bottom portion of the paper container commonly use the hot air blow hole.
【０００５】[0005]
【発明が解決しようとする課題】しかしながら、前述し
たサイドオーブン１１Ｂ，１１Ｂに設けられた略方形状
の無孔領域１５とその周辺に設けた多数の熱風吹き出し
用孔ｂ，ｂ…によって、紙容器の外面側から熱風を吹き
つけると、液体用紙容器２０の第２パネル２２と第４パ
ネル２４の密封する部分２６，２６と三角形の折り罫２
８，２８部分を含むパネルにも熱風がかかり、底部の成
形の際に、折り罫２６，２６に沿った内側と外側の液体
用紙容器の強度差がなくなり、三角形の折り罫通りに折
り込むことが難しく、成形不良が発生する恐れがあっ
た。However, due to the substantially rectangular non-perforated area 15 provided in the side ovens 11B, 11B and the numerous hot air blowing holes b, b ... When hot air is blown from the outer surface side of the liquid paper container 20, the sealing portions 26, 26 of the second panel 22 and the fourth panel 24 of the liquid paper container 20 and the triangular folding line 2
Hot air is also applied to the panel including the 8 and 28 parts, and at the time of molding the bottom part, the strength difference between the inner and outer liquid paper containers along the folding lines 26 and 26 disappears, and it is possible to fold it according to the triangular folding line. It was difficult, and there was a risk of defective molding.
【０００６】そこで本発明は、上記の課題に鑑みなされ
たもので、その目的とするところは、サイドオーブンの
熱風吹きつけ用孔の配列を、第２パネルと第４パネルの
三角形の折り罫に沿って設けることで、加熱される部分
と加熱されない部分との液体用紙容器の紙材に強度差を
つけることが可能となる、液体用紙容器の加熱装置を提
供することにある。Therefore, the present invention has been made in view of the above problems, and an object of the present invention is to arrange the arrangement of the hot air blowing holes of the side oven in the triangular folding lines of the second panel and the fourth panel. It is an object of the present invention to provide a heating device for a liquid paper container that can be provided along the same to make a difference in the strength of the paper material of the liquid paper container between the heated portion and the non-heated portion.
【０００７】[0007]
【課題を解決するための手段】上記目的を達成するため
に本発明の液体用紙容器の加熱装置は、図１に示すよう
に、表面に熱可塑性樹脂層を積層した紙積層材料製から
なる、切妻屋根形などの液体用紙容器の仮折りされた底
部や頂部などを熱圧着して密封する部分に、熱風を吹き
つけて表面の熱可塑性樹脂層を溶かす加熱装置の、前記
熱可塑性樹脂層を溶かす底部や頂部に臨ませて配置さ
れ、液体用紙容器２０の内外面側に熱風を吹き付けるセ
ンターオーブン１１Ａと両サイドオーブン１１Ｂ，１１
Ｂとからなる加熱オーブン１１に、多数の熱風吹き出し
用孔ｂ，ｂ…を設けて熱風を吹きつける液体用紙容器２
０の加熱装置１０において、前記液体用紙容器２０の底
部に臨ませて配置される両サイドオーブン１１Ｂ，１１
Ｂの内面側のほぼ中央部に略三角形状の無孔領域１５を
形成し、この略三角形状の無孔領域１５の周辺に多数の
熱風吹き出し用孔ｂ，ｂ…を配置したことを特徴とす
る。To achieve the above object, a heating apparatus for a liquid paper container according to the present invention is made of a paper laminated material having a surface laminated with a thermoplastic resin layer, as shown in FIG. The thermoplastic resin layer of the heating device that melts the thermoplastic resin layer on the surface by blowing hot air to the part where the temporarily folded bottom or top of the liquid paper container such as a gable roof is thermocompression-bonded and sealed. The center oven 11A and both side ovens 11B, 11 are arranged so as to face the melting bottom and top and blow hot air to the inner and outer surfaces of the liquid paper container 20.
Liquid heating paper container 2 for blowing hot air by providing a large number of hot air blowing holes b, b ...
In the heating device 10 of No. 0, both side ovens 11B, 11 are arranged facing the bottom of the liquid paper container 20.
It is characterized in that a substantially triangular non-perforated region 15 is formed in a substantially central portion on the inner surface side of B, and a large number of hot air blowing holes b, b ... Are arranged around the substantially triangular non-perforated region 15. To do.
【０００８】また、前記両サイドオーブン１１Ｂ，１１
Ｂの内面側に形成した略三角形状の無孔領域１５が、前
記液体用紙容器２０の仮折りされた底部の第２パネル２
２と第４パネル２４の三角形の折り罫２８，２８の対向
する位置に形成したことを特徴とする。Further, both side ovens 11B and 11
The substantially triangular non-perforated region 15 formed on the inner surface side of B is the second panel 2 at the bottom of the liquid paper container 20 that is temporarily folded.
2 and the triangular creases 28 of the fourth panel 24 are formed at positions facing each other.
【０００９】[0009]
【発明の実施の形態】図に基づき本発明の実施の形態を
説明する。本発明の液体用紙容器の加熱装置１０におけ
るサイドオーブン１１Ｂ，１１Ｂは、図１に示すよう
に、液体用紙容器２０の底部に臨ませて配置される両サ
イドオーブン１１Ｂ，１１Ｂの内面側のほぼ中央部に略
三角形状の無孔領域１５を形成し、この周辺に多数の熱
風吹き出し用孔ｂ，ｂ…を配置したもので、また、前記
両サイドオーブン１１Ｂ，１１Ｂ内面側に形成した略三
角形状の無孔領域１５は、前記液体用紙容器の仮折りさ
れた底部の第２パネル２２と第４パネル２４との三角形
の折り罫２８，２８の対向する位置に形成したものであ
る。DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described with reference to the drawings. As shown in FIG. 1, the side ovens 11B, 11B in the heating device 10 for a liquid paper container of the present invention are arranged substantially in the center of the inner surfaces of the side ovens 11B, 11B arranged facing the bottom of the liquid paper container 20. A non-perforated area 15 having a substantially triangular shape is formed in the portion, and a large number of hot air blowing holes b, b ... Are arranged in the periphery of the non-perforated area 15, and the substantially triangular shape is formed on the inner surface side of both side ovens 11B, 11B. The non-perforated area 15 is formed at a position where the triangular folding lines 28, 28 of the second panel 22 and the fourth panel 24 of the temporarily folded bottom portion of the liquid paper container face each other.
【００１０】[0010]
【作用】本発明の液体用紙容器２０の加熱装置１０にお
けるサイドオーブン１１Ｂ，１１Ｂには、図１に示すよ
うに、内面側のほぼ中央部に略三角形状の無孔領域１５
を形成し、その周辺部に熱風吹き出し用ｂ，ｂ…を多数
設けたもので、この無孔領域１５の位置は、仮折りされ
た液体用紙容器２０の底部に臨ませて配置した際に、液
体用紙容器の第２パネル２２と第４パネル２４の三角形
の折り罫２８，２８の対向する位置になるように形成し
たものである。この装置により液体用紙容器底部の内面
側と外面側より熱風を吹きつけることにより、第２パネ
ル２２と第４パネル２４の三角形の折り罫２８，２８を
挟んで、外側の加熱され軟らかくなった部分と折り罫の
内側の加熱されない硬い部分とができ、従って、両者間
に紙の強度差が生じ、底部を密封する際に、折り罫に沿
って折り易くなり、そのため折り曲げ不良（成形不良）
がなくなった。In the side ovens 11B, 11B in the heating apparatus 10 for the liquid paper container 20 of the present invention, as shown in FIG.
Are formed and a large number of hot air blowing b, b ... Are provided in the periphery thereof, and the position of the non-perforated area 15 is arranged so as to face the bottom of the temporarily folded liquid paper container 20. This is formed so that the triangular folding lines 28, 28 of the second panel 22 and the fourth panel 24 of the liquid paper container face each other. With this device, hot air is blown from the inner surface side and the outer surface side of the bottom of the liquid paper container to sandwich the triangular folding lines 28, 28 of the second panel 22 and the fourth panel 24, and the heated and softened portion on the outer side. And there is a hard part inside the crease that is not heated. Therefore, there is a difference in the strength of the paper between the two and it becomes easier to fold along the crease when sealing the bottom part, so bending failure (defective molding)
Is gone.
【００１１】[0011]
【実施例】以下、図に基づき実施例を詳細に説明する。
図１は、液体用紙容器の底部を密封する加熱装置に於け
るサイドオーブンで、（ａ）は、サイドオーブンの底面
図であり、（ｂ）は、サイドオーブンの熱風吹き出し用
孔の配置を示す平面図である。また、図２の（ａ）は、
液体用紙容器の底部の加熱装置の概略図であり、（ｂ）
は、加熱オーブンの概略側面図で、（ｃ）は、サイドオ
ーブンの熱風吹き出し用孔の配置の一例を示す平面図で
ある。また、図３（ａ），（ｂ），（ｃ）は、液体用紙
容器の底部を密封する状態を示す説明図である。Embodiments will be described in detail below with reference to the drawings.
FIG. 1 is a side oven in a heating device for sealing the bottom of a liquid paper container, (a) is a bottom view of the side oven, and (b) shows the arrangement of hot air blowing holes in the side oven. It is a top view. In addition, FIG.
It is a schematic diagram of a heating device of the bottom of a liquid paper container, (b)
[Fig. 3] is a schematic side view of a heating oven, and (c) is a plan view showing an example of arrangement of hot air blowing holes of a side oven. 3 (a), 3 (b), and 3 (c) are explanatory views showing a state in which the bottom of the liquid paper container is sealed.
【００１２】本発明に係る液体用紙容器の底部用の加熱
装置の本体は、図示しないが支持基板と熱風供給部とガ
イドシリンダーとエアーシリンダーを介して上昇、下降
するように取りつけられた外筒体が設けられており、こ
の外筒体の下部に加熱オーブン１１が取りつけられてい
る。そして図２（ａ）に示すように、この加熱オーブン
１１が下降した時に、仮折りして液体用紙容器２０の底
部を熱圧着して密封する部分２６，２６の近傍に位置す
るような構造になっている。The main body of the heating device for the bottom portion of the liquid paper container according to the present invention is an outer cylinder body mounted so as to rise and descend through a support substrate, a hot air supply unit, a guide cylinder and an air cylinder, which are not shown. Is provided, and the heating oven 11 is attached to the lower portion of the outer cylinder. Then, as shown in FIG. 2 (a), when the heating oven 11 descends, it is temporarily folded to be located near the parts 26, 26 for sealing the bottom of the liquid paper container 20 by thermocompression bonding. Has become.
【００１３】本発明の加熱装置における加熱オーブン１
１は、図２（ｂ）に示すように、センターオーブン１１
Ａと両側にサイドオーブン１１Ｂ，１１Ｂの構造で、液
体用紙容器２０の密封する部分２６，２６が適宜の間隔
を保って位置できるようになっている。また、１２は装
置本体からの熱風供給口であり、ｂは熱風吹き出し用孔
を示し、矢印は熱風吹き出し用孔からの熱風の吹きつけ
方向を示したものである。すなわち、仮折りした液体用
紙容器２０の熱圧着して密封する部分２６，２６の４面
体の側面の形状に合わせて、この密封する部分２６，２
６の内面側の熱可塑性樹脂層を溶かす、側面が４面体の
センターオーブン１１Ａと、この密封する部分２６，２
６の左右の第２パネル２２と第４パネル２４の外面側の
熱可塑性樹脂層を溶かす、サイドオーブン１１Ｂ，１１
Ｂとから構成されている。このセンターオーブン１１Ａ
の下部に、前記密封する部分２６，２６の内面側に臨む
４面の全周に熱風吹き出し用孔ｂ，ｂ…を設け、図１に
示すように、サイドオーブン１１Ｂ，１１Ｂには、内側
の側面のほぼ中央部に略三角形状の無孔領域１５を形成
し、その周辺に前記密封する部分２６，２６の左右の外
面側に臨む面に、多数の熱風吹き出し用孔ｂ，ｂ…を設
けたもので、この孔から熱風を吹き出すことにより密封
する部分とシールする部分の熱可塑性樹脂層を溶かし熱
圧着して、上方より熱押圧してシールし、液体用紙容器
の底部を形成する。また、前記略三角形状の無孔領域１
５の位置は、液体用紙容器の底部を形成する第２パネル
２２と第４パネル２４の上部の三角形の折り罫２８，２
８に対向する位置に形成したものである。Heating oven 1 in the heating apparatus of the present invention
1 is a center oven 11 as shown in FIG.
With the structure of side ovens 11B and 11B on both sides of A, the sealed portions 26 of the liquid paper container 20 can be positioned with appropriate intervals. Reference numeral 12 denotes a hot air supply port from the main body of the apparatus, b denotes a hot air blowing hole, and an arrow denotes a hot air blowing direction from the hot air blowing hole. That is, according to the shape of the side surface of the tetrahedron of the parts 26, 26 to be sealed by thermocompression bonding of the temporarily folded liquid paper container 20, the parts 26, 2 to be sealed are sealed.
6, the center oven 11A having a tetrahedral side surface, which melts the thermoplastic resin layer on the inner surface side, and the sealing portions 26, 2
6. Side ovens 11B, 11 that melt the thermoplastic resin layers on the outer surfaces of the second panel 22 and the fourth panel 24 on the left and right of 6
B. This center oven 11A
Are provided in the lower part of the above-mentioned parts 26, 26 with hot air blowing holes b, b ... All around the four surfaces facing the inner surface side, and as shown in FIG. A substantially triangular non-perforated region 15 is formed in the substantially central portion of the side surface, and a large number of hot air blowing holes b, b ... Are provided in the periphery of the non-perforated region 15 on the surfaces facing the left and right outer surfaces of the sealing portions 26, 26. The bottom portion of the liquid paper container is formed by blowing hot air from this hole to melt the thermoplastic resin layer at the sealing portion and the sealing portion and thermocompression-bonding it, and then pressing it from above to seal it. Further, the substantially triangular non-perforated region 1
Position 5 is a triangular crease 28, 2 on top of the second and fourth panels 22 and 24 forming the bottom of the liquid paper container.
It is formed at a position opposite to 8.
【００１４】これにより、サイドオーブン１１Ｂ，１１
Ｂからの熱風は、密封する部分２６，２６に内面側と外
面側から集中的にあたり熱圧着により完全に密封される
と共に、折り畳まれる第２パネル２２と第４パネル２４
の三角形の折り罫の外側に熱風はあたり、内側にはあた
らないので、折り罫２８，２８から折り罫に沿って折り
畳むことができ、しかも完全にシールすることができ
る。As a result, the side ovens 11B, 11
The hot air from B is intensively applied to the sealing portions 26, 26 from the inner surface side and the outer surface side to be completely sealed by thermocompression bonding, and the second panel 22 and the fourth panel 24 are folded.
Since the hot air hits the outer side of the triangular crease and does not hit the inner side of the triangular crease, it can be folded along the creases from the creases 28, 28, and can be completely sealed.
【００１５】次に、本発明の液体用紙容器の加熱装置を
用いて、表面側から熱可塑性樹脂層であるポリエチレン
層（３０μｍ）と紙材料層（３１０ｇ／ｍ2 ）とポリエ
チレン層（２５μｍ）とポリエステルフィルム（１２μ
ｍ）とアルミニウム箔（９μｍ）とポリエステルフィル
ム（１２μｍ）と熱可塑性樹脂層であるポリエチレン層
（６０μｍ）とを、切妻屋根形の液体用紙容器（２０）
の底部の熱圧着して密封する部分２６，２６に前述した
熱風吹き出し用孔ｂ，ｂ…から、３６０℃、８０ｍｍＡ
ｑの熱風を１秒間吹きつけて、内外面側の熱可塑性樹脂
層を溶かし熱圧着したところ、液体用紙容器の底部は、
ほぼ平らに密封され、しかも熱圧着不良による液漏れな
どが起こらなかった。Next, using the heating apparatus for the liquid paper container of the present invention, a polyethylene layer (30 μm) which is a thermoplastic resin layer, a paper material layer (310 g / m 2 ), and a polyethylene layer (25 μm) from the front surface side. Polyester film (12μ
g), an aluminum foil (9 μm), a polyester film (12 μm) and a polyethylene layer (60 μm) which is a thermoplastic resin layer, and a gable roof type liquid paper container (20)
From the above-mentioned hot air blowing holes b, b ... to the parts 26, 26 to be thermocompression-bonded and sealed at the bottom of the, 360 ° C., 80 mmA
When q hot air was blown for 1 second to melt and thermocompress the thermoplastic resin layers on the inner and outer surfaces, the bottom of the liquid paper container was
It was sealed almost flat, and liquid leakage due to poor thermocompression bonding did not occur.
【００１６】[0016]
【発明の効果】本発明の液体用紙容器の加熱装置におけ
るサイドオーブンは、内面側のほぼ中央部に略三角形状
の無孔領域を形成し、その周辺に熱風吹き出し用孔を多
数設けたもので、この無孔領域の位置は、仮折りされた
液体用紙容器の底部に臨ませて配置した際に、液体用紙
容器の第２パネルと第４パネルの三角形の折り罫に対向
する位置になるように形成したものである。この装置に
より液体用紙容器底部の内面側と外面側より熱風を吹き
つけることにより、第２パネルと第４パネルの三角形の
折り罫を挟んで、外側の加熱され軟らかくなった部分と
折り罫の内側の加熱されない硬い部分とができ、従っ
て、両者間に紙の強度差が生じ、底部を密封する際に、
折り罫に沿って折り易くなり、成形不良がなくなった。
従って、液体用紙容器の底部は、ほぼ平らに密封され、
しかも熱圧着不良による液漏れなどが起こらなかった。The side oven in the heating apparatus for liquid paper containers according to the present invention has a substantially triangular non-perforated region formed in the substantially central portion on the inner surface side, and a large number of hot air blowing holes provided around it. The position of the non-perforated area is such that it is opposed to the triangular creases of the second panel and the fourth panel of the liquid paper container when it is arranged so as to face the bottom of the temporarily folded liquid paper container. It was formed in. By blowing hot air from the inner surface and the outer surface of the bottom of the liquid paper container with this device, the triangular creases of the second panel and the fourth panel are sandwiched, and the heated and softened portion on the outer side and the inner side of the creases. There is a hard part that is not heated, so there is a difference in the strength of the paper between them, and when sealing the bottom,
It became easier to fold along the creases, eliminating molding defects.
Therefore, the bottom of the liquid paper container is sealed almost flat,
Moreover, liquid leakage due to poor thermocompression bonding did not occur.
【図１】本発明の実施例における、液体用紙容器の底部
を密封する加熱装置に於けるサイドオーブンで、（ａ）
は、サイドオーブンの底面図であり、（ｂ）は、サイド
オーブンの熱風吹き出し用孔の配置を示す平面図であ
る。FIG. 1 is a side oven in a heating device for sealing a bottom portion of a liquid paper container according to an embodiment of the present invention.
[Fig. 3] is a bottom view of the side oven, and (b) is a plan view showing the arrangement of the hot-air blowing holes of the side oven.
【図２】本発明に係る液体用紙容器底部の加熱装置の概
略を示すもので、（ａ）は、加熱装置本体の概略図であ
り、（ｂ）は、加熱オーブンの概略側面図で、（ｃ）
は、サイドオーブンの熱風吹き出し用孔の配置の一例を
示す平面図である。2A and 2B schematically show a heating device for a bottom portion of a liquid paper container according to the present invention, FIG. 2A is a schematic view of a heating device main body, and FIG. 2B is a schematic side view of a heating oven. c)
[Fig. 4] is a plan view showing an example of the arrangement of hot air blowing holes of a side oven.
【図３】本発明に係る液体用紙容器の底部を密封する状
態を示す説明図である。FIG. 3 is an explanatory view showing a state in which the bottom of the liquid paper container according to the present invention is sealed.
１０…加熱装置本体 １１…加熱オーブン １１Ａ…センターオーブン １１Ｂ…サイドオーブン １２…熱風供給口 １５…無孔領域 ２０…液体用紙容器 ２１…第１パネル ２２…第２パネル ２３…第３パネル ２４…第４パネル ２５…のり代片 ２６…密封する部分 ２８…折り罫 ｂ …熱風吹き出し用孔 Ｈｂ…密封する部分に対する外側からの熱風孔 Ｔｂ…底部のシールのための熱風孔 10 ... Heating device main body 11 ... Heating oven 11A ... Center oven 11B ... Side oven 12 ... Hot air supply port 15 ... Non-perforated area 20 ... Liquid paper container 21 ... First panel 22 ... Second panel 23 ... Third panel 24 ... 4 panel 25 ... glue substitute 26 ... sealing part 28 ... folding line b ... hot air blowing hole Hb ... hot air hole from outside for sealing part Tb ... hot air hole for sealing bottom part
Claims (2)
料製からなる、切妻屋根形などの液体用紙容器の仮折り
された底部や頂部などを熱圧着して密封する部分に、熱
風を吹きつけて表面の熱可塑性樹脂層を溶かす加熱装置
の、前記熱可塑性樹脂層を溶かす底部や頂部に臨ませて
配置され、液体用紙容器の内外面に熱風を吹き付けるセ
ンターオーブンと両サイドオーブンとからなる加熱オー
ブンに、多数の熱風吹き出し用孔を設けて熱風を吹きつ
ける液体用紙容器の加熱装置において、前記液体用紙容
器の底部に臨ませて配置される両サイドオーブンの内面
側のほぼ中央部に略三角形状の無孔領域を設け、該略三
角形状の無孔領域の周辺には多数の熱風吹き出し用孔を
配置したことを特徴とする液体用紙容器の加熱装置。1. A hot air blow is applied to a portion of a liquid paper container, such as a gable roof, which is made of a paper laminated material having a surface laminated with a thermoplastic resin layer and which is thermocompression-bonded to a temporarily folded bottom or top to seal the liquid paper container. From a center oven and both side ovens, which are arranged so as to face the bottom and top of the heating device that melts the thermoplastic resin layer of the surface by spraying, and that blows hot air to the inner and outer surfaces of the liquid paper container. In a heating device for a liquid paper container in which a large number of hot air blowing holes are provided in a heating oven to blow hot air, in the central portion on the inner surface side of both side ovens facing the bottom of the liquid paper container. A heating device for a liquid sheet container, wherein a substantially triangular non-perforated area is provided, and a large number of hot air blowing holes are arranged around the substantially triangular non-perforated area.
略三角形状の無孔領域が、前記液体用紙容器の仮折りさ
れた底部の第２パネルと第４パネルの三角形の折り罫に
対向する位置に形成されていることを特徴とする請求項
１に記載の液体用紙容器の加熱装置。2. A substantially triangular non-perforated region formed on the inner surface sides of both side ovens faces the triangular folding lines of the second panel and the fourth panel of the temporarily folded bottom portion of the liquid paper container. The heating device for a liquid paper container according to claim 1, wherein the heating device is formed at a position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP03656596A JP3621183B2 (en) | 1996-02-23 | 1996-02-23 | Liquid paper container heating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP03656596A JP3621183B2 (en) | 1996-02-23 | 1996-02-23 | Liquid paper container heating device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH09226705A true JPH09226705A (en) | 1997-09-02 |
| JP3621183B2 JP3621183B2 (en) | 2005-02-16 |
Family
ID=12473293
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP03656596A Expired - Fee Related JP3621183B2 (en) | 1996-02-23 | 1996-02-23 | Liquid paper container heating device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3621183B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114275250A (en) * | 2022-01-17 | 2022-04-05 | 东莞市立茗机械有限公司 | Full-automatic tea and coffee filtering and sealing integrated packaging equipment |
-
1996
- 1996-02-23 JP JP03656596A patent/JP3621183B2/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114275250A (en) * | 2022-01-17 | 2022-04-05 | 东莞市立茗机械有限公司 | Full-automatic tea and coffee filtering and sealing integrated packaging equipment |
| CN114275250B (en) * | 2022-01-17 | 2023-07-25 | 东莞市立茗机械有限公司 | Full-automatic tea and coffee filtering and sealing integrated packaging equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3621183B2 (en) | 2005-02-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4403465A (en) | Method and device for closing and sealing gable shaped folding cartons | |
| USRE29568E (en) | Carton sealing apparatus | |
| JPH01200953A (en) | Laminate for packaging and manufacture thereof | |
| US3985284A (en) | Material in the form of a web or of sheets for the manufacture of packing containers or parts thereof | |
| US4201609A (en) | Method for T or butt sealing of laminated all-plastic material | |
| JPH0759421B2 (en) | Folding box container | |
| JP3621183B2 (en) | Liquid paper container heating device | |
| WO2022242755A1 (en) | Sealed container and preparation method therefor, sheet composite material, and container precursor | |
| EP0839968B1 (en) | Method of manufacturing a heat-insulating structure | |
| JP3136982B2 (en) | Liquid paper container heating device | |
| JPH1072028A (en) | Blank sheet for square cylindrical paper container for liquid | |
| JP2544450B2 (en) | Liquid Paper Container Sealing Method | |
| JP3134759B2 (en) | Liquid paper container heating device | |
| JP2000168737A (en) | Hermetical sealing of paper container, and forming device using the same method | |
| JP3603667B2 (en) | Heating method for paper container and heating apparatus using the heating method | |
| JP7472740B2 (en) | Tray Container | |
| JPH0858767A (en) | Roof-shaped liquid container | |
| JPH10329243A (en) | Device for manufacture of packaging container | |
| JPH08301207A (en) | Apparatus for preheating paper container for liquid | |
| JPH11292005A (en) | Heating method for gable roof type paper container, and heating apparatus employing the heating method | |
| JPH05124636A (en) | Blank board | |
| JPH0986520A (en) | Hot air heating device for sealing paper container for liquid | |
| JP3508253B2 (en) | Square cylindrical liquid paper container | |
| JP2022174900A (en) | packaging container | |
| JP3928358B2 (en) | Heating method of paper container and heating apparatus using the heating method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A521 | Written amendment |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20041006 |
|
| A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20041117 |
|
| R150 | Certificate of patent (=grant) or registration of utility model |
Free format text: JAPANESE INTERMEDIATE CODE: R150 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20071126 Year of fee payment: 3 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20081126 Year of fee payment: 4 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20091126 Year of fee payment: 5 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20091126 Year of fee payment: 5 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20101126 Year of fee payment: 6 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20111126 Year of fee payment: 7 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20121126 Year of fee payment: 8 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20121126 Year of fee payment: 8 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20131126 Year of fee payment: 9 |
|
| LAPS | Cancellation because of no payment of annual fees |