JP2003335309A - Vertical heat seal roll - Google Patents
Vertical heat seal rollInfo
- Publication number
- JP2003335309A JP2003335309A JP2002142316A JP2002142316A JP2003335309A JP 2003335309 A JP2003335309 A JP 2003335309A JP 2002142316 A JP2002142316 A JP 2002142316A JP 2002142316 A JP2002142316 A JP 2002142316A JP 2003335309 A JP2003335309 A JP 2003335309A
- Authority
- JP
- Japan
- Prior art keywords
- heat seal
- disk
- heat
- drum
- vertical heat
- 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
- Package Closures (AREA)
Abstract
Description
【発明の詳細な説明】
【０００１】
【発明の属する技術分野】本発明は、包装フィルムを上
方から下方へ向けて搬送しつつ縦シールして筒状とし、
さらに横シールして袋状として充填材料を充填したの
ち、再度横シールして個装体を得る縦型充填包装機に用
いる縦ヒートシールロールの改良に関するものである。
【０００２】
【従来の技術】従来より、円柱状のドラムの少なくとも
一方の端部にそのドラムよりも長径のヒートシール円盤
がそのドラムと同心に取り付けられ、ヒートシール円盤
の周面に全周にわたって凹凸が施された縦ヒートシール
ロールと、その縦ヒートシールロールと同一の構成の他
の縦ヒートシールロールとを一対にして前記ヒートシー
ル円盤の周面同士を対向させ、それらの周面間に少なく
とも二片の包装フィルムを噛み込みつつ、一対のドラム
の互いに反対方向の回転によって包装フィルム同士（例
えば、二つ折りした一枚の包装フィルムの端縁同士）を
ヒートシールするための縦ヒートシールロールが広く知
られている。
【０００３】このような縦ヒートシールロールを含む包
装機械によって、いわゆる三方シール、四方シールとい
った小袋包装形態が得られる。そして、かかる小袋に
は、容易に開封できるようにシール部にノッチ（切り欠
き）や切れ目が包装機械に設けられたカッターによって
形成されることもある。
【０００４】ところで、包装フィルムにおいても開封
（引き裂き）の容易性を図ったものとして、例えば図４
（Ａ）に示すように、フィルム端縁４１，４２（互いに
ヒートシールされる部分）の積層構造において、同図
（Ｂ）に示すように、最外層である延伸ナイロン層４３
にのみ多数の孔４４・・・を形成したものが知られてい
る。
【０００５】フィルム端縁４１、４２同士は、ヒートシ
ール材としてのポリエチレン層４５を貼り合せてヒート
シールされる。この場合、延伸ナイロン層４３及び基材
としての塩化ビニリデン層４６は熱融点が高いので、ポ
リエチレン層４５が熱溶融しても熱溶融しない。
【０００６】そして、この種の包装フィルムから得られ
た小袋のヒートシール部の両表面には、同図（Ｃ）にも
示すように多数の孔４４・・・が凹部となって表出す
る。この多数の凹部４４・・・が存在することで小袋の
ヒートシール部の引裂強度が弱くなり、その分だけ容易
に開封しやすくなる。なお、上記の孔の他に同層に多数
の切り込みを形成したものもある。
【０００７】
【発明が解決しようとする課題】しかしながら、この種
の包装フィルムは、フィルム端縁に切り込みや孔が形成
されているため、スティックタイプ等の個装体を生産す
る間歇送り型の包装機のように包装フィルムに引張力が
断続的に加わる場合には、包装フイルムが切れやすいと
いう欠点がある。また、この種の包装フィルムは、切り
込みや孔があるために包装フィルムの厚さが均一でな
く、包装フィルムの原反から繰り出されて縦ヒートシー
ルロールに到達するまでの間で、各種の移送ロールの表
面で蛇行し易いという欠点もある。さらに、特殊な加工
を施しているために総じて高価であるという問題もあ
る。
【０００８】本発明は、上記の技術的課題を考え合わせ
て創作されたもので、高価な特殊な包装フィルムを使用
しなくとも、包装フィルムが切れたり蛇行したりするト
ラブルを回避しつつ、開封しやすい個装体を得ることの
できる縦ヒートシールロールを提供することを目的とし
ている。
【０００９】
【課題を解決するための手段】本発明に係る縦ヒートシ
ールロールは、上記の技術的課題を解決するために、円
柱状のドラムの少なくとも一方の端部に前記ドラムより
も長径のヒートシール円盤が前記ドラムと同心に取り付
けられ、前記ヒートシール円盤の周面に全周にわたって
凹凸が施された縦ヒートシールロールと、該縦ヒートシ
ールロールと同一の構成の他の縦ヒートシールロールと
を一対にして前記ヒートシール円盤の周面同士を対向さ
せ、該周面間に少なくとも二片の包装フィルムを噛み込
みつつ、前記一対のドラムの互いに反対方向の回転によ
って前記包装フィルム同士をヒートシールすることがで
きる縦ヒートシールロールにおいて、前記ヒートシール
円盤よりも長径の補助円盤が前記ヒートシール円盤のさ
らに外側に前記ドラムと同心に取り付けられ、前記補助
円盤の周面には全周にわたって凹凸が施されていること
を特徴としている。
【００１０】本発明に係る縦ヒートシールロールによれ
ば、ヒートシール円盤よりも長径の補助円盤がヒートシ
ール円盤のさらに外側にドラムと同心に取り付けられ、
補助円盤の周面には全周にわたって凹凸が施されている
ので、互いにヒートシールさせる包装フィルムの端縁の
表面に凹部が形成され、この凹部が存在することによっ
て得られた個装体のヒートシール部（縦シール部）の引
裂強度が低下して、その分だけ個装体の開封が容易にな
る。
【００１１】
【発明の実施の形態】以下、本発明に係る縦ヒートシー
ルロールの実施の形態を図面に基づいて説明する。図１
は、本発明に係る縦ヒートシールロール（以下、単に
「シールロール」という。）を示す平面図である。
【００１２】シールロール１（２）は、円柱状のドラム
３（４）を備えている。ドラム３（４）の一方の端部Ｅ
１（Ｅ２）には、ドラム３（４）よりも長径のヒートシ
ール円盤５（６）がドラム３（４）と同心に取り付けら
れている。
【００１３】また、ヒートシール円盤５（６）の周面に
は、全周にわたって凹凸部７（８）が施されている。凹
凸部７（８）の内側部分９（１０）はヒートシールベタ
面とされている。 凹凸部７（８）は、図２に示すよう
に、底辺の１ピッチＰが約０．８ｍｍとされた四角錐の
集合とされている。これらの四角錐の高さは、包装フィ
ルムの厚さ、層構造によって適宜設定される。
【００１４】ヒートシール円盤５の凹凸部７とヒートシ
ール円盤６の凹凸部８は、図３に示すように、互いに噛
み合う位置関係で極狭の隙間をあけた状態で二枚の包装
フィルム片Ｆ１、Ｆ２を噛み込む。フィルム片Ｆ１、Ｆ
２は、凹凸部７、８によって孔をあけられることなく押
圧され、それらのポリエチレン層が互いに熱融着され
る。
【００１５】図１に示すように、ヒートシール円盤５
（６）の外側（ドラム３（４）の反対側）には、ヒート
シール円盤５（６）よりも極僅か（本実施例では２５〜
４０ミクロン）長径の補助円盤１１（１２）がドラム３
（４）と同心に取り付けられている。
【００１６】補助円盤１１（１２）の周面には全周にわ
たって凹凸部１３（１４）が施されている。補助円盤１
１の凹凸部１３と補助円盤１２の凹凸部１４は、図３に
示すように、互いに噛み合う位置関係で極狭の隙間をあ
けた状態で二枚の包装フィルム片Ｆ１、Ｆ２を噛み込
む。フィルム片Ｆ１、Ｆ２は、凹部１３、１４によって
延伸ナイロン層に孔をあけられた上でポリエチレン層が
互いに熱融着される。このようにして、図４（Ｃ）に示
すような断面構造の縦シール部を得ることができる。
【００１７】なお、本実施例において、ドラム、ヒート
シール円盤及び補助円盤はステンレスＳＵＳ３０４を用
いるが、部材の材質は本発明の要旨とするところではな
い。
【００１８】
【発明の効果】以上説明したように、本発明によれば、
ヒートシール円盤よりも長径の補助円盤をヒートシール
円盤のさらに外側にドラムと同心に取り付け、補助円盤
の周面に全周にわたって凹凸を施すことにより、互いに
ヒートシールさせる包装フィルムの端縁の表面に凹部が
形成され、この凹部が存在することによって得られた個
装体のヒートシール部（縦シール部）の引裂強度が低下
して、その分だけ個装体の開封が容易になるという優れ
た効果を奏することができる。Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tubular film which is vertically sealed while being conveyed from above to below.
Further, the present invention relates to an improvement of a vertical heat seal roll used in a vertical filling and packaging machine in which a filling material is filled in a bag shape after being laterally sealed and then individually sealed by laterally sealing. 2. Description of the Related Art Conventionally, at least one end of a cylindrical drum is provided with a heat seal disk having a longer diameter than the drum and concentric with the drum. A vertical heat seal roll with irregularities and another vertical heat seal roll having the same configuration as the vertical heat seal roll are paired so that the peripheral surfaces of the heat seal disks face each other, and between the peripheral surfaces. A vertical heat seal roll for heat-sealing packaging films (for example, edges of one folded packaging film) by rotating at least two pieces of packaging film in opposite directions of a pair of drums. Is widely known. With a packaging machine including such a vertical heat seal roll, a small bag packaging form such as a so-called three-sided seal or a four-sided seal can be obtained. In such pouches, notches (notches) or cuts may be formed in the seal portion by a cutter provided in the packaging machine so that the bag can be easily opened. [0004] By the way, the packaging film is also designed to be easy to open (tear), for example, as shown in FIG.
As shown in (A), in the laminated structure of the film edges 41 and 42 (the parts heat-sealed to each other), as shown in FIG.
Are formed with a large number of holes 44. The film edges 41 and 42 are heat-sealed by laminating a polyethylene layer 45 as a heat-sealing material. In this case, since the stretched nylon layer 43 and the vinylidene chloride layer 46 as the base material have a high thermal melting point, the polyethylene layer 45 does not thermally fuse even when thermally fused. As shown in FIG. 1C, a large number of holes 44... Appear as recesses on both surfaces of the heat seal portion of a small bag obtained from this type of packaging film. . Due to the presence of the large number of concave portions 44, the tear strength of the heat seal portion of the small bag is weakened, so that the bag can be easily opened. In addition, in addition to the above-mentioned holes, there is also one in which a number of cuts are formed in the same layer. However, this type of packaging film has cuts and holes formed at the edge of the film, so that an intermittent feed type packaging for producing an individual body such as a stick type is provided. When a tensile force is intermittently applied to a packaging film as in a machine, there is a disadvantage that the packaging film is easily cut. In addition, this type of packaging film has notches or holes, so the thickness of the packaging film is not uniform, and various types of transfer are performed until the packaging film is unwound from the raw material of the packaging film and reaches the vertical heat seal roll. There is also a drawback that the meandering easily occurs on the surface of the roll. In addition, there is a problem that it is generally expensive due to special processing. [0008] The present invention has been made in view of the above technical problems, and can be opened while avoiding the problem that the packaging film is cut or meandering without using an expensive special packaging film. It is an object of the present invention to provide a vertical heat seal roll capable of obtaining an easily packaged body. [0009] In order to solve the above-mentioned technical problems, a vertical heat seal roll according to the present invention has at least one end of a cylindrical drum having a longer diameter than the drum. A vertical heat seal roll in which a heat seal disk is mounted concentrically with the drum and irregularities are formed over the entire circumference of the heat seal disk, and another vertical heat seal roll having the same configuration as the vertical heat seal roll And a pair of the heat-sealing disks, with the peripheral surfaces facing each other, and while the at least two pieces of the packaging film are being bitten between the peripheral surfaces, the packaging films are heated by rotating the pair of drums in opposite directions. In a vertical heat seal roll that can be sealed, an auxiliary disk having a longer diameter than the heat seal disk is further provided by the heat seal disk. The auxiliary disk is attached concentrically with the drum on the outside, and the peripheral surface of the auxiliary disk is provided with irregularities all around. According to the vertical heat seal roll of the present invention, the auxiliary disk having a longer diameter than the heat seal disk is attached concentrically with the drum further outside the heat seal disk.
Since the peripheral surface of the auxiliary disk is provided with irregularities over the entire circumference, a concave portion is formed on the surface of the edge of the packaging film to be heat-sealed with each other, and the heat of the individual package obtained by the presence of the concave portion is obtained. The tear strength of the seal portion (vertical seal portion) is reduced, and the individual package is easily opened by that much. An embodiment of a vertical heat seal roll according to the present invention will be described below with reference to the drawings. FIG.
FIG. 1 is a plan view showing a vertical heat seal roll (hereinafter, simply referred to as “seal roll”) according to the present invention. The seal roll 1 (2) includes a cylindrical drum 3 (4). One end E of the drum 3 (4)
At 1 (E2), a heat seal disk 5 (6) having a longer diameter than the drum 3 (4) is mounted concentrically with the drum 3 (4). [0013] The heat-sealing disk 5 (6) is provided with a concavo-convex portion 7 (8) on the entire circumference thereof. The inner portion 9 (10) of the uneven portion 7 (8) is a heat seal solid surface. As shown in FIG. 2, the uneven portion 7 (8) is a set of quadrangular pyramids with one pitch P at the bottom set to about 0.8 mm. The height of these quadrangular pyramids is appropriately set according to the thickness and layer structure of the packaging film. As shown in FIG. 3, the concave and convex portions 7 of the heat seal disk 5 and the concave and convex portions 8 of the heat seal disk 6 have two packaging film pieces F1 in a state of being engaged with each other and with a very small gap therebetween. , F2. Film pieces F1, F
2 is pressed without being perforated by the uneven portions 7 and 8, and the polyethylene layers are thermally fused to each other. [0015] As shown in FIG.
On the outer side of (6) (on the side opposite to the drum 3 (4)), a very small amount (25 to 25 in this embodiment) is smaller than that of the heat seal disk 5 (6).
The auxiliary disk 11 (12) having a long diameter of 40 microns
It is mounted concentrically with (4). The peripheral surface of the auxiliary disk 11 (12) is provided with an uneven portion 13 (14) over the entire circumference. Auxiliary disk 1
As shown in FIG. 3, the first uneven portion 13 and the uneven portion 14 of the auxiliary disk 12 bite the two packaging film pieces F <b> 1 and F <b> 2 in a state where they are meshed with each other with a very narrow gap. The film pieces F1 and F2 are provided with holes in the stretched nylon layer by the concave portions 13 and 14, and the polyethylene layers are thermally fused to each other. In this way, a vertical seal having a cross-sectional structure as shown in FIG. 4C can be obtained. In this embodiment, the stainless steel SUS304 is used for the drum, the heat seal disk and the auxiliary disk, but the material of the members is not the subject of the present invention. As described above, according to the present invention,
An auxiliary disk with a longer diameter than the heat-seal disk is mounted concentrically with the drum further outside the heat-seal disk, and the peripheral surface of the auxiliary disk is provided with concavities and convexities over the entire circumference, so that the surface of the edge of the packaging film to be heat-sealed to each other is formed. A concave portion is formed, and the tear strength of the heat seal portion (vertical seal portion) of the individual package obtained by the presence of the concave portion is reduced, and the individual package is easily opened by that much. The effect can be achieved.
【図面の簡単な説明】
【図１】本発明に係る縦ヒートシールロールの平面図で
ある。
【図２】本発明に係る縦ヒートシールロールのヒートシ
ール円盤及び補助円盤の周面に施される凹凸の平面図で
ある。
【図３】本発明に係る縦ヒートシールロールによって熱
融着される２枚の包装フィルム片の状態を示す部分断面
図である。
【図４】易開封性が付与されている従来の包装フィルム
を説明する、（Ａ）平面図、（Ｂ）断面図、（Ｃ）端縁
同士が熱融着された後の断面図である。
【符号の説明】
１、２ 縦ヒートシールロール
３，４ ドラム
５，６ ヒートシール円盤
７，８ 凹凸
Ｆ１，Ｆ２ 包装フィルム（片）
１１，１２ 補助円盤
１３，１４ 凹凸BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a plan view of a vertical heat seal roll according to the present invention. FIG. 2 is a plan view of irregularities formed on the peripheral surfaces of a heat seal disk and an auxiliary disk of the vertical heat seal roll according to the present invention. FIG. 3 is a partial cross-sectional view showing a state of two pieces of packaging film thermally fused by the vertical heat seal roll according to the present invention. 4A is a plan view, FIG. 4B is a cross-sectional view, and FIG. 4C is a cross-sectional view after edges have been heat-sealed, illustrating a conventional packaging film provided with easy-opening properties. . [Description of Signs] 1, 2 Vertical heat seal roll 3, 4 Drum 5, 6 Heat seal disk 7, 8 Unevenness F1, F2 Packaging film (piece) 11, 12 Auxiliary disk 13, 14 Unevenness
Claims (1)
前記ドラムよりも長径のヒートシール円盤が前記ドラム
と同心に取り付けられ、前記ヒートシール円盤の周面に
全周にわたって凹凸が施された縦ヒートシールロール
と、該縦ヒートシールロールと同一の構成の他の縦ヒー
トシールロールとを一対にして前記ヒートシール円盤の
周面同士を対向させ、該周面間に少なくとも二片の包装
フィルムを噛み込みつつ、前記一対のドラムの互いに反
対方向の回転によって前記包装フィルム同士をヒートシ
ールすることができる縦ヒートシールロールにおいて、 前記ヒートシール円盤よりも長径の補助円盤が前記ヒー
トシール円盤のさらに外側に前記ドラムと同心に取り付
けられ、前記補助円盤の周面には全周にわたって凹凸が
施されていることを特徴とする縦ヒートシールロール。Claims: 1. A heat-seal disk having a longer diameter than the drum is attached concentrically to the drum at at least one end of the cylindrical drum, and the heat-seal disk has a full circumference on a peripheral surface thereof. A vertical heat seal roll provided with unevenness over, and another vertical heat seal roll having the same configuration as the vertical heat seal roll are paired so that the peripheral surfaces of the heat seal disks face each other, and between the peripheral surfaces. In a vertical heat seal roll capable of heat-sealing the packaging films by rotating the pair of drums in opposite directions while biting at least two pieces of the packaging film, an auxiliary disk having a longer diameter than the heat-sealing disk is provided. Attached concentrically with the drum further outside the heat seal disk, the peripheral surface of the auxiliary disk is uneven over the entire circumference. Vertical heat sealing roll, characterized in that has been subjected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002142316A JP2003335309A (en) | 2002-05-17 | 2002-05-17 | Vertical heat seal roll |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002142316A JP2003335309A (en) | 2002-05-17 | 2002-05-17 | Vertical heat seal roll |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2003335309A true JP2003335309A (en) | 2003-11-25 |
Family
ID=29702631
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2002142316A Pending JP2003335309A (en) | 2002-05-17 | 2002-05-17 | Vertical heat seal roll |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2003335309A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006168740A (en) * | 2004-12-13 | 2006-06-29 | Kojima Shojikido Honpo:Kk | Package seal apparatus |
| JP2009214924A (en) * | 2008-03-12 | 2009-09-24 | Kanae Co Ltd | Sealed vessel, method for manufacturing the sealed vessel, mold for manufacturing the sealed vessel, and connection structure |
| CN104670575A (en) * | 2015-02-13 | 2015-06-03 | 安徽永成电子机械技术有限公司 | Supporting print belt pulley assembly for multifunctional heat sealing machine |
| CN107892025A (en) * | 2017-11-07 | 2018-04-10 | 苏州润桐专利运营有限公司 | A kind of fruit juice particle packaging facilities |
| JP2019031014A (en) * | 2017-08-08 | 2019-02-28 | 大阪シーリング印刷株式会社 | Manufacturing method of packaging bag including easy cutting structure |
| JP2019099240A (en) * | 2017-12-06 | 2019-06-24 | 三光機械株式会社 | Vertical-type automatic filling packaging machine |
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| JPS5068727U (en) * | 1973-10-20 | 1975-06-19 | ||
| JPS62146707U (en) * | 1986-03-11 | 1987-09-16 | ||
| JPH0343360A (en) * | 1989-07-11 | 1991-02-25 | Taisei Ramitsuku Kk | Wrapping bag, manufacture and heat seal roll thereof |
| JPH0589267U (en) * | 1991-09-25 | 1993-12-07 | 花王株式会社 | Container |
| JPH06155635A (en) * | 1992-11-19 | 1994-06-03 | Taisei Ramick Kk | Packing bag and heat seal roll for manufacture of it |
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| JP2009214924A (en) * | 2008-03-12 | 2009-09-24 | Kanae Co Ltd | Sealed vessel, method for manufacturing the sealed vessel, mold for manufacturing the sealed vessel, and connection structure |
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| CN107892025A (en) * | 2017-11-07 | 2018-04-10 | 苏州润桐专利运营有限公司 | A kind of fruit juice particle packaging facilities |
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