JP3136982B2 - Liquid paper container heating device - Google Patents
Liquid paper container heating deviceInfo
- Publication number
- JP3136982B2 JP3136982B2 JP08036566A JP3656696A JP3136982B2 JP 3136982 B2 JP3136982 B2 JP 3136982B2 JP 08036566 A JP08036566 A JP 08036566A JP 3656696 A JP3656696 A JP 3656696A JP 3136982 B2 JP3136982 B2 JP 3136982B2
- Authority
- JP
- Japan
- Prior art keywords
- paper container
- liquid paper
- hot air
- oven
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
- B29C66/72—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined
- B29C66/723—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined being multi-layered
- B29C66/7232—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined being multi-layered comprising a non-plastics layer
- B29C66/72327—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined being multi-layered comprising a non-plastics layer consisting of natural products or their composites, not provided for in B29C66/72321 - B29C66/72324
- B29C66/72328—Paper
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
- B29C65/10—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using hot gases (e.g. combustion gases) or flames coming in contact with at least one of the parts to be joined
- B29C65/103—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using hot gases (e.g. combustion gases) or flames coming in contact with at least one of the parts to be joined direct heating both surfaces to be joined
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/01—General aspects dealing with the joint area or with the area to be joined
- B29C66/05—Particular design of joint configurations
- B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
- B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
- B29C66/112—Single lapped joints
- B29C66/1122—Single lap to lap joints, i.e. overlap joints
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
- B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
- B29C66/43—Joining a relatively small portion of the surface of said articles
- B29C66/431—Joining the articles to themselves
- B29C66/4312—Joining the articles to themselves for making flat seams in tubular or hollow articles, e.g. transversal seams
- B29C66/43121—Closing the ends of tubular or hollow single articles, e.g. closing the ends of bags
- B29C66/43122—Closing the top of gable top containers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
- B29C66/73—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
- B29C66/739—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset
- B29C66/7392—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic
- B29C66/73921—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic characterised by the materials of both parts being thermoplastics
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/712—Containers; Packaging elements or accessories, Packages
- B29L2031/7162—Boxes, cartons, cases
- B29L2031/7166—Cartons of the fruit juice or milk type, i.e. containers of polygonal cross sections formed by folding blanks into a tubular body with end-closing or contents-supporting elements, e.g. gable type containers
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Composite Materials (AREA)
- Closing Of Containers (AREA)
- Package Closures (AREA)
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、特に、仮折りした液体用紙容器の頂部を熱圧着
して密封するために、頂部に対する外面側からの過加熱
を防止し、密封性を図るため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 box and filling process for a gable-roof-shaped liquid paper container for storing juice, sake, etc., and particularly, to seal the top of the temporarily folded liquid paper container by thermocompression bonding. Therefore, the present invention relates to a heating device for preventing overheating from the outer surface side with respect to a top portion and achieving sealing performance.
【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）とアルミニウム箔（９μ
ｍ）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（６０μｍ）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。この液体
用紙容器のアルミニウム箔については、果汁や清酒など
の充填物が空気中の酸素や充填物の香気成分などを遮断
する、ガスバリアー層として積層したものである。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開口部内外面の密封す
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。2. Description of the Related Art Conventionally, as for a paper laminated material in which a thermoplastic resin layer constituting a liquid paper container such as a gable roof is laminated, for example, a polyethylene layer (30 μm) which is a thermoplastic resin layer and a paper Material layer (310 g / m 2 )
And polyethylene layer (25 μm) and aluminum foil (9 μm)
m), a polyester film (12 μm) and a polyethylene layer (60 μm) which is a thermoplastic resin are appropriately laminated with a paper laminate material or the like. In the aluminum foil of the liquid paper container, a filler such as fruit juice or sake is laminated as a gas barrier layer that blocks oxygen in the air and aroma components of the filler. In the box making and filling process of a liquid paper container such as a gable roof made of a paper laminated material having a thermoplastic resin layer laminated on the surface, in the filling process, the heat of the sealed portion on the inner and outer surfaces of the opening portion of the temporarily folded liquid paper container. In order to facilitate the pressure bonding, hot air is blown by a heating oven provided in a heating device which is moved and positioned in the vicinity of the portion to be sealed to melt the thermoplastic resin layer on the surface, and the portions to be sealed are joined and joined. Work is taking place.
【０００３】そこで、液体用紙容器の頂部の密封方法の
一例を示すならば、図３（ａ）は液体用紙容器２０の頂
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、
第１と第３パネルの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と接着する部分２６ａ，２６ａ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３（ｂ）に示すように、第１パネル２１側端部と
のり代２５とをサック貼りし、仮折りされた頂部と底部
（底部は図示しない）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の頂部の密封
する部分２６，２６と接着する部分２６ａ，２６ａ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、折り罫２８，２８を介して内側方向に折り込み、図
３（ｃ）に示すように、折り罫に沿って折り込み接着す
る部分２６ａ，２６ａと密封する部分２６，２６を接合
し密封することで、液体用紙容器の頂部が形成される。Therefore, if an example of a method of sealing the top of the liquid paper container is shown, FIG. 3A shows a top portion of the liquid paper container 20, and a first panel 21 and a second panel 22 are shown.
A glue allowance 25 for the third panel 23 and the fourth panel 24,
Sealing portions 26, 26 are provided at the upper end portions of the first and third panels, and portions 26a, 26a are provided on the second panel 22 and the fourth panel 24 for bonding to the folding rules 28, 28 for temporary folding. I have. First, in the box making and filling process of the liquid paper container, as shown in FIG. 3 (b), the end of the first panel 21 side and the glue allowance 25 are pasted together, and the temporarily folded top and bottom (bottom is shown in the figure). (Not shown) is a rectangular cylindrical liquid paper container 20 having an opening. Next, hot air is blown from the inner and outer surfaces to the sealing portions 26a, 26a bonded to the sealing portions 26, 26 at the top of the liquid paper container 20 to melt the thermoplastic resin layer on the surface. As shown in FIG. 3 (c), the top of the liquid paper container is formed by joining and sealing the parts 26a, 26a to be folded and adhered along the folding rule and the parts 26, 26 to be sealed. You.
【０００４】ここで、前記液体用紙容器２０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
仮折りされた頂部にあてがって、加熱オーブン１１から
熱風を内外から前記紙容器の接着する部分２６ａ，２６
ａと密封する部分２６，２６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の頂部の端部
である、密封する部分２６，２６と接着する部分２６
ａ，２６ａを内外から囲むようにした、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
ており、この液体用紙容器の頂部の内面側から熱風を吹
きつける熱風供給口１２を有するセンタオーブン１１Ａ
の全周と、外面側から熱風を吹きつけるサイドオーブン
１１Ｂ，１１Ｂの凸状の側面部には多数の熱風吹き出し
用孔ｂ，ｂ…が横に複数段にわたり千鳥模様状或いは並
列されて、設けられており、この熱風吹き出し用孔ｂ，
ｂ…から熱風を吹きつけて液体用紙容器の表面の熱可塑
性樹脂層を溶かし、頂部を密封する。すなわち、液体用
紙容器２０の頂部の密封する部分２６，２６と接着する
部分２６ａ，２６ａに対する加熱は、内面側からのセン
ターオーブン１１Ａの加熱のみで十分であるが、サイド
オーブン１１Ｂ，１１Ｂで内面側の補助及び外面側の熱
圧着のために両面側より加熱を加えていた。Here, in order to melt the thermoplastic resin layer on the surface of the liquid paper container 20, as shown in FIG.
The heating oven 11 of the heating device 10 is applied to the temporarily folded top of the liquid paper container 20, and hot air from the heating oven 11 is bonded from inside and outside to the paper containers 26a, 26.
This is performed by spraying toward the parts 26, 26 to be sealed with a. That is, as shown in FIG. 2B, the heating oven 11 is a top end of the liquid paper container 20, which is a portion 26 bonded to the sealing portions 26, 26.
The center oven 11A and the side ovens 11B and 11B have a structure in which a hot air supply port 12 for blowing hot air from the inner surface side of the top of the liquid paper container is provided.
, And a plurality of hot air blow-out holes b, b,... Provided in a staggered pattern or in parallel in a plurality of stages on the convex side surfaces of the side ovens 11B, 11B for blowing hot air from the outer surface side. The hot air blowing holes b,
b .... blow hot air to melt the thermoplastic resin layer on the surface of the liquid paper container, and seal the top. In other words, the heating of the center oven 11A from the inner side is sufficient for heating the portions 26a, 26a bonded to the sealing portions 26, 26 on the top of the liquid paper container 20, but the side ovens 11B, 11B use the inner side. Heating was applied from both sides to assist in the heat-sealing and thermocompression of the outer surface.
【０００５】[0005]
【発明が解決しようとする課題】しかしながら、高速充
填機等で加圧時間が十分に取れない場合には有効である
が、センターオーブンによる内面側の加熱で、実際には
外面側まで表面の熱可塑性樹脂層を溶かし接合し密封す
ることができるため、両サイドオーブンからの熱風は過
加熱となる。従って、表面の熱可塑性樹脂層を溶かし過
ぎとなり、接着及び密着強度が低下して頂部を密封した
後に、外側の接着する部分２６ａ，２６ａから剥がれが
発生すると共に、剥がれによる液体用紙容器の形状不良
の原因になっていた。However, it is effective when the pressurizing time cannot be sufficiently obtained with a high-speed filling machine or the like. However, heating of the inner surface by the center oven actually heats the surface to the outer surface. Since the plastic resin layer can be melted, joined and sealed, the hot air from both side ovens is overheated. Therefore, the thermoplastic resin layer on the surface is excessively melted, the adhesion and the adhesion strength are reduced, and after sealing the top, peeling occurs from the outer bonding portions 26a, 26a, and the shape of the liquid paper container is poor due to the peeling. Was causing it.
【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、両サイドオーブン
による熱風の吹きつけ量を無くすか又は減少させて、剥
がれの防止と、これによる形状不良の発生を抑えるよう
にした液体用紙容器の加熱装置を提供することにある。Accordingly, the present invention has been made in view of the above-mentioned problems, and an object of the present invention is to eliminate or reduce the amount of hot air blown by both side ovens to prevent peeling and to reduce the shape. An object of the present invention is to provide a heating device for a liquid paper container which suppresses occurrence of defects.
【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頂
部や底部などを熱圧着して密封する部分に、熱風を吹き
付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頂部や底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
オーブンとサイドオーブンからなる加熱オーブンに、多
数の貫設された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２０の加熱装置１０において、前記液
体用紙容器２０の頂部に臨ませて配置される加熱オーブ
ン１１のサイドオーブン１１Ｂ，１１Ｂの凸状側面部
に、熱風吹き出し用孔を形成せずに、無孔の側面部を備
えたサイドオーブン１１Ｂ，１１Ｂとしたことを特徴と
する。In order 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 thermoplastic resin layer laminated on a surface thereof, as shown in FIG. Melting the thermoplastic resin layer of the heating device that blows hot air to the part to seal the temporarily folded top and bottom of the liquid paper container such as the gable roof by thermocompression bonding and melts the thermoplastic resin layer on the surface Liquid paper that is arranged facing the top and bottom and has a large number of hot air blow-out holes in the heating oven consisting of a center oven and a side oven that blows hot air to the inner and outer surfaces of the liquid paper container and blows hot air. In the heating device 10 for the container 20, hot air blowing holes are formed in the convex side surfaces of the side ovens 11B and 11B of the heating oven 11 arranged facing the top of the liquid paper container 20. Without forming the side oven 11B having a side surface portion of the imperforate, characterized in that the 11B.
【０００８】また、前記サイドオーブン１１Ｂ，１１Ｂ
が、凸状側面部のコーナー部ｔ，ｔのみに熱風吹き出し
用孔ｂ，ｂを形成したことを特徴とする。Further, the side ovens 11B, 11B
However, holes b, b for blowing out hot air are formed only at the corners t, t of the convex side surface.
【０００９】さらに、前記凸状側面部のコーナー部ｔ，
ｔの熱風吹き出し用孔ｂ，ｂを、異なる位置に複数個形
成したことを特徴とする。Further, the corners t,
It is characterized in that a plurality of hot air blowing holes b are formed at different positions.
【００１０】[0010]
【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。図１に示すように、本発明の液体用紙容器２
０の加熱装置１０は、該紙容器の内面の熱可塑性樹脂層
を溶かす頂部や底部に臨ませて配置され、液体用紙容器
２０の内面から熱風を吹きつける熱風吹き出し用孔ｂ，
ｂ…を全周に多数貫設したセンターオーブン１１Ａと、
前記液体用紙容器２０の第２パネル２２と第４パネル２
４の頂部に対向する位置で、かつ、熱風吹き出し用孔を
形成せずに、無孔の凸状側面部を設けたサイドオーブン
１１Ｂ，１１Ｂとからなる加熱オーブン１１を備えた加
熱装置１０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 liquid paper container 2 of the present invention
The heating device 10 is disposed so as to face the top or bottom of the paper container where the thermoplastic resin layer is melted, and the hot air blowing holes b, which blow hot air from the inner surface of the liquid paper container 20,
a center oven 11A having a large number of b ...
The second panel 22 and the fourth panel 2 of the liquid paper container 20
4 is a heating device 10 provided with a heating oven 11 including side ovens 11B and 11B provided with non-porous convex side portions without forming a hole for blowing hot air at a position facing the top portion of the heating oven 11. .
【００１１】[0011]
【作用】本発明の液体用紙容器の加熱装置は、図１に示
すように、サイドオーブン１１Ｂ，１１Ｂの内側の凸状
側面部に熱風吹き出し用孔を形成せずに、無孔の側面部
とすることにより、センターオーブン１１Ａで前記紙容
器の内面からの熱風による加熱で、両サイドオーブンに
熱風吹き出し用孔がなくとも、輻射熱により液体用紙容
器の外面側が加熱されて、過加熱を防ぐことができ、し
かも外側表面の熱可塑性樹脂層が適宜に溶かされ、密封
後においても接着する部分２６ａ，２６ａや密封する部
分２６，２６が剥がれることがない。As shown in FIG. 1, the apparatus for heating a liquid paper container according to the present invention does not form a hot air blowing hole in the convex side surface inside the side ovens 11B, 11B, but has a holeless side portion. By doing so, even if there is no hot air blowing hole in both side ovens, the outer surface side of the liquid paper container is heated by the radiant heat by the heating by the hot air from the inner surface of the paper container in the center oven 11A, thereby preventing overheating. In addition, the thermoplastic resin layer on the outer surface is appropriately melted, and the bonded portions 26a, 26a and the sealed portions 26, 26 do not peel off even after sealing.
【００１２】また、サイドオーブン１１Ｂ，１１Ｂの凸
状側面部のコーナー部ｔ，ｔに熱風吹き出し用孔ｂ，ｂ
を複数個形成し、外側より前記紙容器のコーナーに熱風
を吹きつけることで、センターオーブン１１Ａによる紙
容器のコーナーに対する加熱不足を補助し、密封性を向
上させる。Also, hot air blowout holes b, b are formed in the corners t, t of the convex side surfaces of the side ovens 11B, 11B.
Are formed, and hot air is blown from the outside to the corners of the paper container, thereby assisting insufficient heating of the corners of the paper container by the center oven 11A and improving the sealing performance.
【００１３】[0013]
【実施例】以下、図に基づき実施例を詳細に説明する。
図１（ａ）は、液体用紙容器の加熱装置における頂部の
加熱オーブンの底面図であり、（ｂ）は、サイドオーブ
ンの無孔の凸状側面部の平面図であり、（ｃ）は、コー
ナーのみに熱風吹き出し用孔を形成したサイドオーブン
の側面部の平面図である。また、図２（ａ）は、加熱装
置の概略説明図であり、（ｂ）は、加熱オーブンを正面
から見た説明図である。また、図３（ａ）は、液体用紙
容器の頂部を示し部分平面図であり、（ｂ）は、サック
貼された液体用紙容器の頂部部分の斜視図で、（ｃ）
は、密封された液体用紙容器の頂部を示す部分斜視図で
ある。BRIEF DESCRIPTION OF THE DRAWINGS FIG.
FIG. 1A is a bottom view of a heating oven at the top of a heating device for a liquid paper container, FIG. 1B is a plan view of non-porous convex side portions of a side oven, and FIG. It is a top view of the side part of the side oven in which the hole for hot air blowing was formed only in the corner. FIG. 2A is a schematic explanatory diagram of a heating device, and FIG. 2B is an explanatory diagram of a heating oven as viewed from the front. FIG. 3A is a partial plan view showing the top portion of the liquid paper container, and FIG. 3B is a perspective view of the top portion of the liquid paper container stuck thereon, and FIG.
FIG. 3 is a partial perspective view showing the top of a sealed liquid paper container.
【００１４】本発明に係る液体用紙容器の加熱装置の本
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、仮折りされた液体用紙容器２０の頂部を熱
圧着して密封する部分２６，２６と接着する部分２６
ａ，２６ａの近傍に位置するような構造になっている。The main body of the apparatus for heating a liquid paper container according to the present invention is provided with an outer cylinder body (not shown) mounted so as to be raised and lowered via a support substrate, a hot air supply unit, a guide cylinder and an air cylinder. A heating oven 11 is attached to a lower portion of the outer cylinder. Then, as shown in FIG. 2 (a), when the heating oven 11 is lowered, the top 26 of the temporarily folded liquid paper container 20 is thermocompression-bonded to the sealing portions 26, 26 and the portion 26 to be bonded.
a, 26a.
【００１５】本発明の加熱装置における加熱オーブン１
１は、図１（ａ）の底面図に示すように、センターオー
ブン１１Ａと両側にサイドオーブン１１Ｂ，１１Ｂの構
造で、液体用紙容器２０の仮折りされた密封する部分２
６，２６と接着する部分２６ａ，２６ａ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、小さい矢印は熱風吹き出
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、仮折りされた液体用紙容器２０の熱圧着して
密封する部分２６，２６と接着する部分２６ａ，２６ａ
の変形６面体の側面の形状に合わせて、側面が変形６面
体のセンターオーブン１１Ａと、この密封する部分２
６，２６の左右の外面側の第２及び第４パネルの接着す
る部分２６ａ，２６ａの熱可塑性樹脂層を溶かす、側面
が変形５面体のサイドオーブン１１Ｂ，１１Ｂとから構
成されている。このセンターボックス１１Ａの下部に
は、前記密封する部分２６，２６と接着する部分２６
ａ，２６ａの内面側に臨む６面の全周に熱風吹き出し用
孔ｂ，ｂ…が設けられている。一方、サイドオーブン１
１Ｂ，１１Ｂの、前記接着する部分２６ａ，２６ａの外
面側に臨む凸状の２面には、熱風吹き出し用孔を形成せ
ずに無孔の側面部としたものである。従って、サイドオ
ーブン１１Ｂ，１１Ｂからは熱風を吹きつけることな
く、サイドオーブンの輻射熱により外面側の接着する部
分２６ａ，２６ａの熱可塑性樹脂層を溶かし、密着させ
るものである。Heating oven 1 in the heating device of the present invention
1 is a structure of a center oven 11A and side ovens 11B and 11B on both sides as shown in the bottom view of FIG.
Portions 26a, 26a to be bonded to 6, 6 and 26 can be located at appropriate intervals. Reference numeral 12 denotes a hot air supply port from the apparatus main body, and a small arrow indicates a blowing direction of the hot air from the hot air blowing hole.
That is, the portions 26a, 26a that are bonded to the portions 26, 26 of the temporarily folded liquid paper container 20 that are thermally compressed and sealed.
According to the shape of the side face of the deformed hexahedron, the center oven 11A whose side face is the deformed hexahedron, and the sealing portion 2
The side ovens 11B, 11B have a deformed pentahedron, which melts the thermoplastic resin layers of the portions 26a, 26a of the left and right outer surfaces of the second and fourth panels 6 and 26 to be bonded. The lower part of the center box 11A has a part 26 bonded to the sealing parts 26, 26.
Holes b, b,... for blowing out hot air are provided on the entire circumference of the six surfaces facing the inner surfaces of the a, 26a. Meanwhile, side oven 1
The two convex surfaces facing the outer surfaces of the bonding portions 26a, 26a of 1B, 11B are non-porous side portions without forming hot air blowing holes. Therefore, without blowing hot air from the side ovens 11B, the radiant heat of the side oven melts the thermoplastic resin layers of the portions 26a, 26a to be adhered on the outer surface side and makes them adhere.
【００１６】また、図１（ｃ）は、サイドオーブン１１
Ｂ，１１Ｂの凸状の側面部の他の実施例を示すもので、
この側面部のコーナー部ｔ，ｔに熱風吹き出し用孔ｂ，
ｂを形成したものである。すなわち、図１（ａ）に示す
ように、センターオーブン１１Ａの４つのコーナー部に
臨む位置と、仮折りされた液体用紙容器２０の４つのコ
ーナー部の内面側との距離が遠いため、熱風を吹きつけ
ても他の部分との加熱温度に差が生じるので、この内側
部分の熱可塑性樹脂層が十分に溶けない場合があり、頂
部の密封に影響することがある。そこで外側から前記紙
容器のコーナー部に向かって加熱補助をするため、サイ
ドオーブンのコーナー部ｔ，ｔに熱風吹き出し用孔ｂ，
ｂを設けたものである。なお、コーナー部ｔ，ｔの熱風
吹き出し用孔ｂ，ｂは、コーナー部の異なる位置に適宜
形成すると、熱風を紙容器の外側コーナー部に対して広
く吹きつけることができるので、複数列にわたり形成す
ることが好ましい。FIG. 1C shows a side oven 11.
B and 11B show another embodiment of the convex side portion.
Hot air blowout holes b,
b is formed. That is, as shown in FIG. 1A, the distance between the position facing the four corners of the center oven 11A and the inner surface side of the four corners of the temporarily folded liquid paper container 20 is long, so that hot air is generated. Even if it is sprayed, there is a difference in the heating temperature with other parts, so that the thermoplastic resin layer in this inner part may not be sufficiently melted, which may affect the sealing of the top part. Therefore, in order to assist heating from the outside toward the corners of the paper container, hot air blowing holes b,
b. When the hot air blowing holes b, b of the corners t, t are appropriately formed at different positions of the corners, the hot air can be widely blown to the outer corners of the paper container. Is preferred.
【００１７】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）とからなる、切妻屋根形の液体用紙容器
（２０）の内面側より熱圧着して密封する部分２６，２
６と接着する部分２６ａ，２６ａに、センターオーブン
１１Ａの全周に設けた熱風吹き出し用孔ｂ，ｂ…から、
３６０℃、８０ｍｍＡｑの熱風を１秒間吹きつけて、外
側は無孔の側面部を設けたサイドオーブン１１Ｂ，１１
Ｂを使用し、加熱密封したところ、接着する部分からも
密封する部分からも剥がれが発生せず、成形不良も起こ
らなかった。従って、液体用紙容器は剥がれや熱圧着不
良による液漏れなどが起こらなかった。Next, the polyethylene layer (30 μm), the paper material layer (310 g / m 2 ), and the polyethylene layer (25 μm), which are thermoplastic resin layers, are viewed from the front side using the heating apparatus for a liquid paper container of the present invention. Polyester film (12μ
m), an aluminum foil (9 μm), a polyester film (12 μm), and a polyethylene layer (60 μm) as a thermoplastic resin layer. Parts 26, 2
6 from the hot air blowout holes b provided on the entire periphery of the center oven 11A,
Hot air of 360 ° C. and 80 mmAq was blown for 1 second, and the side ovens 11B and 11B provided with non-porous side portions on the outside.
When B was used and heat-sealed, no peeling occurred from the bonded portion and the sealed portion, and no molding failure occurred. Therefore, the liquid paper container did not peel off or leak due to poor thermal compression bonding.
【００１８】[0018]
【発明の効果】本発明の液体用紙容器の加熱装置は、両
サイドオーブンの内側の凸状側面部に熱風吹き出し用孔
を形成せずに、無孔の側面部とすることにより、センタ
ーオーブンで前記紙容器の内面からの熱風による加熱
で、サイドオーブンに熱風吹き出し用孔がなくとも、輻
射熱により液体用紙容器の外面側が加熱されることにな
り、過加熱を防ぐことができ、外側表面の熱可塑性樹脂
層が適宜に溶かされ、密封後においても接着する部分や
密封する部分が剥がれることがない。The apparatus for heating a liquid paper container according to the present invention has a non-porous side portion without forming a hole for blowing out hot air on the convex side portions inside the two side ovens. By heating with hot air from the inner surface of the paper container, the outer surface side of the liquid paper container is heated by radiant heat even if the side oven does not have a hot air blowing hole, so that overheating can be prevented, and heat on the outer surface can be prevented. The plastic resin layer is appropriately melted, so that the bonded portion and the sealed portion are not peeled off even after the sealing.
【００１９】また、センターオーブンのコーナー部と仮
折りされた液体用紙容器のコーナー部との間に距離があ
るため加熱温度の不足により熱可塑性樹脂層が溶けにく
くなるので、頂部の密封に影響することがある。そこで
外側からこの紙容器のコーナー部に向かって加熱補助を
するため、サイドオーブンのコーナー部のみに熱吹き出
し用孔を設けて熱風を吹きつけることにより、内面側の
コーナーの熱可塑性樹脂層も十分に溶かすことができ、
密封する部分や接着する部分の剥がれがなくなると共
に、コーナー部を完全に密着させることができる。Also, since there is a distance between the corner of the center oven and the corner of the temporarily folded liquid paper container, the insufficient heating temperature makes it difficult for the thermoplastic resin layer to melt, which affects the sealing of the top. Sometimes. Therefore, in order to assist heating from the outside toward the corner of this paper container, a hole for heat blowing is provided only at the corner of the side oven and hot air is blown, so that the thermoplastic resin layer at the inner corner is sufficient. Can be dissolved in
Peeling of the sealing part and the bonding part does not occur, and the corner part can be completely adhered.
【図１】本発明の一実施例における、液体用紙容器の加
熱装置で、（ａ）は、加熱オーブンの底面図であり、
（ｂ）は、サイドオーブンの一例を示す側面部の平面図
であり、（ｃ）は、サイドオーブンの他の一例を示す側
面部の平面図である。FIG. 1 is a bottom view of a heating oven of a heating device for a liquid paper container according to one embodiment of the present invention.
(B) is a top view of a side part showing an example of a side oven, and (c) is a plan view of a side part showing another example of a side oven.
【図２】本発明に係る加熱装置の概略を示すもので、
（ａ）は、加熱装置本体の部分説明図であり、（ｂ）
は、加熱オーブンを正面から見た説明図である。FIG. 2 schematically shows a heating device according to the present invention,
(A) is a partial explanatory view of a heating device main body, (b)
FIG. 3 is an explanatory view of the heating oven as viewed from the front.
【図３】本発明に係る液体用紙容器を示すもので、
（ａ）は、液体用紙容器の頂部を示す部分平面図であ
り、（ｂ）は、サック貼りした液体用紙容器の頂部を示
す部分斜視図であり、（ｃ）は、液体用紙容器の密封さ
れた頂部を示す部分斜視図である。FIG. 3 shows a liquid paper container according to the present invention.
(A) is a partial plan view showing the top of the liquid paper container, (b) is a partial perspective view showing the top of the liquid paper container stuck, and (c) is a sealed state of the liquid paper container. FIG. 4 is a partial perspective view showing a top portion.
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 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 ２６ａ…接着する部分 ３０…注出口栓 ｂ …熱風吹き出し用孔 ｔ …サイドオーブンのコーナー部 DESCRIPTION OF SYMBOLS 10 ... Heating apparatus main body 11 ... Heating oven 11A ... Center oven 11B ... Side oven 12 ... Hot air supply port 20 ... Liquid paper container 21 ... 1st panel 22 ... 2nd panel 23 ... 3rd panel 24 ... 4th panel 25 ... Paste Replacement piece 26: Sealing part 26a: Adhering part 30: Spout plug b: Hot air blowing hole t: Corner of side oven
Claims (3)
料製からなる、切妻屋根形などの液体用紙容器の仮折り
された頂部や底部などを熱圧着して密封する部分に、熱
風を吹き付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頂部や底部に臨ませて
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からなる加熱オーブ
ンに、多数の貫設された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
体用紙容器の頂部に臨ませて配置される、加熱オーブン
における両サイドオーブンの凸状の側面部に熱風吹き出
し用孔を形成せずに、無孔の側面部を備えた両サイドオ
ーブンとしたことを特徴とする液体用紙容器の加熱装
置。A hot air is applied to a portion of a liquid paper container having a gable roof shape or the like, which is made of a paper laminated material having a thermoplastic resin layer laminated on its surface, and which is sealed by thermocompression sealing a temporarily folded top or bottom of the container. A heating device that sprays and melts the thermoplastic resin layer on the surface, is arranged facing the top and bottom where the thermoplastic resin layer is melted, and has a center oven and a two-side oven that blow hot air to the inner and outer surfaces of the liquid paper container. In a heating apparatus for a liquid paper container, which is provided with a large number of hot air blowing holes provided in the oven and blows hot air, the convexities of both side ovens in the heating oven are arranged facing the top of the liquid paper container. A heating device for a liquid paper container, characterized in that a hot-air blowing hole is not formed in a side surface of the container, and a double-sided oven having a non-porous side portion is provided.
ーナー部に熱風吹き出し用孔を形成したことを特徴とす
る請求項１に記載の液体用紙容器の加熱装置。2. A heating device for a liquid paper container according to claim 1, wherein said both-side oven has hot air blowing holes formed at corners of said convex side portions.
し用孔を、異なる位置に複数個設けたことを特徴とする
請求項１又は請求項２に記載の液体用紙容器の加熱装
置。3. A heating device for a liquid paper container according to claim 1, wherein a plurality of holes for blowing hot air at corners of said convex side portions are provided at different positions.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP08036566A JP3136982B2 (en) | 1996-02-23 | 1996-02-23 | Liquid paper container heating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP08036566A JP3136982B2 (en) | 1996-02-23 | 1996-02-23 | Liquid paper container heating device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH09226706A JPH09226706A (en) | 1997-09-02 |
| JP3136982B2 true JP3136982B2 (en) | 2001-02-19 |
Family
ID=12473321
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP08036566A Expired - Fee Related JP3136982B2 (en) | 1996-02-23 | 1996-02-23 | Liquid paper container heating device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3136982B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR200492028Y1 (en) * | 2018-08-06 | 2020-07-22 | 오동현 | Oxygen container support |
-
1996
- 1996-02-23 JP JP08036566A patent/JP3136982B2/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR200492028Y1 (en) * | 2018-08-06 | 2020-07-22 | 오동현 | Oxygen container support |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH09226706A (en) | 1997-09-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP3136982B2 (en) | Liquid paper container heating device | |
| JP2000255562A (en) | Paper tray | |
| JP2000238759A (en) | Paper tray | |
| JP2544450B2 (en) | Liquid Paper Container Sealing Method | |
| JP3079185B2 (en) | Packaging bag sealing method | |
| KR0179062B1 (en) | Paper container and tear resistant means applying apparatus for paper containers | |
| JPH09226705A (en) | Heating device of paper container for liquid | |
| JP4094728B2 (en) | Method and apparatus for heating and melting thermoplastic adhesive in sealing part of liquid paper container | |
| JP2023526720A (en) | How the container is formed | |
| JP3134759B2 (en) | Liquid paper container heating device | |
| JP7383290B2 (en) | Packaging container and method for producing packaged food packaged with the packaging container | |
| CA1077666A (en) | Method for t or butt sealing of laminated all-plastic material | |
| JPS6259067B2 (en) | ||
| JP2000168737A (en) | Hermetical sealing of paper container, and forming device using the same method | |
| JP3541670B2 (en) | Heating method for gable roof paper container and heating device using the heating method | |
| JPH08301207A (en) | Apparatus for preheating paper container for liquid | |
| JP2007168872A (en) | Packaging container, and its manufacturing method | |
| JP3603667B2 (en) | Heating method for paper container and heating apparatus using the heating method | |
| JPH038430Y2 (en) | ||
| JPH03289462A (en) | Plastic container and its sealing method | |
| JP2000302120A (en) | Tray container | |
| JP3550758B2 (en) | Sealing method for liquid paper containers | |
| JPH09141763A (en) | Thermal fusion | |
| JP2000079937A (en) | Sealed complex tray container | |
| JP2687130B2 (en) | Method of forming envelope pasting part in paper container |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20071208 Year of fee payment: 7 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20081208 Year of fee payment: 8 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20091208 Year of fee payment: 9 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20091208 Year of fee payment: 9 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20101208 Year of fee payment: 10 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20111208 Year of fee payment: 11 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20121208 Year of fee payment: 12 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20121208 Year of fee payment: 12 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20131208 Year of fee payment: 13 |
|
| LAPS | Cancellation because of no payment of annual fees |