JP5478414B2 - Packaging bags and vertical bag making filling and packaging equipment - Google Patents

Packaging bags and vertical bag making filling and packaging equipment Download PDF

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JP5478414B2
JP5478414B2 JP2010181320A JP2010181320A JP5478414B2 JP 5478414 B2 JP5478414 B2 JP 5478414B2 JP 2010181320 A JP2010181320 A JP 2010181320A JP 2010181320 A JP2010181320 A JP 2010181320A JP 5478414 B2 JP5478414 B2 JP 5478414B2
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packaging film
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高志 小笠原
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Tokyo Automatic Machinery Works Ltd
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Description

この発明は、底部を内側に折り込んで自立できるようなマチを形成した包装袋と、同包装袋の成形に好適な縦形製袋充填包装装置に関する。   The present invention relates to a packaging bag in which a bottom is folded inward to form a gusset that can stand on its own, and a vertical bag making filling and packaging apparatus suitable for forming the packaging bag.

従来、この種の包装袋を成形するための包装装置として、特許文献１に開示された構成のものがある。同文献１の包装装置は、帯状の包装フィルムを成形管（１）の外周面に巻き付けて筒状とし、両端の重ね合わせ部分を縦シーラ（長手方向シール作用部３、３’）により長手方向に熱シールしていき、次いで当該熱シール部の逆側にある端縁にマチ作用部（１４、１４’）を差し込んで折り込む構成を備えている。その後、横シーラ（６）により横断方向の熱シールが施されて、同文献１の図６に示すように自立可能な包装袋が成形される。ここで、内側に折り込まれマチが形成された側の端縁が包装袋の底部（１３）を形成しており、一方、逆側にある長手方向に熱シールされた側の端縁が袋上部となっている。   Conventionally, there is a configuration disclosed in Patent Document 1 as a packaging device for forming this type of packaging bag. In the packaging device of the same document 1, a belt-shaped packaging film is wound around the outer peripheral surface of a molded tube (1) to form a cylinder, and overlapping portions at both ends are longitudinally formed by vertical sealers (longitudinal sealing action portions 3, 3 ′). Next, a gusset acting portion (14, 14 ') is inserted into the edge on the opposite side of the heat seal portion and then folded. Thereafter, a transverse heat seal is applied by the transverse sealer (6), and a self-supporting packaging bag is formed as shown in FIG. Here, the edge on the side folded inward to form the gusset forms the bottom (13) of the packaging bag, while the edge on the opposite side heat-sealed in the longitudinal direction is the top of the bag It has become.

さて、成形管（１）の外周面に包装フィルムを巻き付けて筒状にするとき、重ね合わされる各端縁の相互間にズレが生じやすく、当該重ね合わせ端縁間にズレが生じたまま熱シールされてしまうことがある。
上述した従来の包装装置は、この重ね合わせ端縁が包装袋の上部に露出することになるため、当該ズレ部分をトリミングする（切り取る）工程が必要となるばかりか、切り取ったフィルム屑を廃棄する手間がかかり、このことが生産効率を低下させる要因となっていた。 Now, when a packaging film is wound around the outer peripheral surface of the molded tube (1) to form a cylinder, a gap is easily generated between the overlapping edges, and heat is generated with a gap between the overlapping edges. It may be sealed.
In the conventional packaging apparatus described above, the overlapping edge is exposed at the upper part of the packaging bag, so that not only a process of trimming (cutting) the misalignment portion but also the scraped film waste is discarded. This takes time and has been a factor in reducing production efficiency.

特開２０００−１９０９０８号公報JP 2000-190908 A

本発明は、上述した事情に鑑みなされたもので、帯状の包装フィルムの両側端を重ね合わせて熱シールした第１シール部をトリミングする必要がなく、しかも外観品質の良好な包装袋を提供することを目的とする。   The present invention has been made in view of the above-described circumstances, and provides a packaging bag that does not require trimming the first seal portion that is heat-sealed by overlapping both ends of a belt-shaped packaging film and that has good appearance quality. For the purpose.

上記目的を達成するために、本発明に係る包装袋は、帯状の包装フィルムの両側端を重ね合わせて熱シールした第１シール部と、
第１シール部の形成をもって筒状に形成された包装フィルムの一方の開口部を閉塞する第２シール部と、
同じく包装フィルムの他方の開口部を閉塞する第３シール部と、を備え、
且つ、第１シール部を内側に折り込んだ状態で、第２および第３シール部が形成され、当該折り込み部分を袋底部としたことを特徴とする。 In order to achieve the above object, a packaging bag according to the present invention includes a first seal portion that is heat-sealed by overlapping both side ends of a belt-shaped packaging film;
A second seal portion for closing one opening of the packaging film formed into a cylindrical shape with the formation of the first seal portion;
A third seal portion that closes the other opening of the packaging film,
And the 2nd and 3rd seal part was formed in the state where the 1st seal part was folded inward, and the folded part was used as the bag bottom part.

かかる構成の包装袋は、両側端を重ね合わせて熱シールした第１シール部を内側に折り込み袋底部としたので、当該重ね合わせ部分にズレが生じていても外部から見えず、よって当該第１シール部をトリミングしなくとも良好な外観品質を得ることができる。   In the packaging bag having such a configuration, the first seal part that is heat-sealed by overlapping both side ends is folded inward to form the bottom of the bag. Therefore, even if the overlapped part is displaced, it cannot be seen from the outside, and therefore the first Good appearance quality can be obtained without trimming the seal portion.

また、本発明に係る包装袋に、裏面に熱シール性を有した包装フィルムを使用する場合は、第１シール部とともに内側に折り込まれた領域の角部近傍に切抜き部を形成し、当該切抜き部を透して、正面側および背面側に配置された包装フィルムの裏面を熱シールすることが好ましい。
このように構成することで、包装フィルムが裏面しか熱シール性を有していなくとも、包装袋の底部角部で重なり合う部分を、切抜き部を透して相互に熱シールし、いわゆる船底形の底部を形成することができる。 Moreover, when using the packaging film which has heat-sealing property on the back surface for the packaging bag which concerns on this invention, a cutout part is formed in the corner | angular part vicinity of the area | region folded inside with the 1st seal part, and the said cutout It is preferable that the back surface of the packaging film disposed on the front side and the back side is heat-sealed through the portion.
By configuring in this way, even if the packaging film has only heat sealability on the back side, the overlapping portions at the bottom corners of the packaging bag are heat-sealed through the cutouts, so-called ship bottom-shaped A bottom can be formed.

次に、本発明に係る縦形製袋充填包装装置は、
帯状の包装フィルムを繰り出すフィルム繰出し手段と、
繰り出されてきた包装フィルムを周面に巻き付けて両側端を重ね合わせる製袋筒と、
製袋筒により重ね合わされた包装フィルムの両側端を、繰り出し方向に熱シールして第１シール部を形成する縦シール手段と、
第１シール部を内側に折り込むフィルム折り込み手段と、
第１シール部が内側に折り込まれた状態の包装フィルムを、繰り出し方向と直交する方向に横シールして第２および第３シール部を形成する横シール手段と、を備えたことを特徴とする。
かかる構成の縦形製袋充填包装装置を用いることで、上述した本発明の包装袋を効率よく製造することができる。 Next, the vertical bag making filling and packaging apparatus according to the present invention comprises:
Film feeding means for feeding out a belt-shaped packaging film;
A bag-making cylinder that wraps the wrapped packaging film around the circumference and overlaps both ends;
Vertical sealing means for heat-sealing both side ends of the packaging film overlapped by the bag-making cylinder in the feeding direction to form a first seal portion;
Film folding means for folding the first seal portion inward;
And a lateral sealing means for laterally sealing the packaging film in a state in which the first seal portion is folded inward in a direction orthogonal to the feeding direction to form the second and third seal portions. .
By using the vertical bag making and filling apparatus having such a configuration, the above-described packaging bag of the present invention can be efficiently manufactured.

さらに、この縦形製袋充填包装装置は、繰り出される帯状の包装フィルムに対し、第１シール部とともに内側に折り込まれる領域の角部近傍に相当する部位に切抜き部を形成する切抜き手段と、
袋底部の角部を斜めに熱シールする斜めシール手段と、
切抜き部を透かして、正面側および背面側に配置された包装フィルムの裏面を熱シールする貼着シール手段と、を備えることで、包装袋に上述した船底形の底部を形成することが可能となる。 Further, the vertical bag making filling and packaging apparatus is provided with a cutting means for forming a cutout portion at a portion corresponding to the vicinity of a corner portion of the region folded inward together with the first seal portion, with respect to the fed belt-shaped packaging film.
An oblique sealing means for obliquely heat-sealing the corner of the bag bottom;
It is possible to form the bottom of the ship bottom shape described above in the packaging bag by providing an adhesive seal means for heat-sealing the back surface of the packaging film disposed on the front side and the back side through the cutout portion. Become.

本発明によれば、帯状の包装フィルムの両側端を重ね合わせて熱シールした第１シール部をトリミングする必要がなく、しかも外観品質の良好な包装袋を提供することができる。   According to the present invention, there is no need to trim the first seal part that is heat-sealed by superimposing both side ends of a belt-like packaging film, and a packaging bag with good appearance quality can be provided.

本発明の実施形態に係る包装袋を示す図で、（ａ）は正面図、（ｂ）は側面断面図である。It is a figure which shows the packaging bag which concerns on embodiment of this invention, (a) is a front view, (b) is side sectional drawing. 本発明の実施形態に係る縦形製袋充填包装装置の概要を示す斜視図である。It is a perspective view which shows the outline | summary of the vertical bag making filling packaging apparatus which concerns on embodiment of this invention. 帯状の包装フィルムから包装袋を製造していく工程を説明するための図である。It is a figure for demonstrating the process of manufacturing a packaging bag from a strip-shaped packaging film. 図３に続く工程説明図である。It is process explanatory drawing following FIG. 本発明の他の実施形態に係る包装袋を示す図で、（ａ）は正面図、（ｂ）は側面断面図である。It is a figure which shows the packaging bag which concerns on other embodiment of this invention, (a) is a front view, (b) is side sectional drawing.

以下、この発明の実施の形態について図面を参照して詳細に説明する。
図１は本発明の実施形態に係る包装袋を示す図である。
包装袋１は、帯状の包装フィルム１０を熱シールし、且つ切断して成形されている。包装袋１には、第１シール部１１、第２シール部１２、第３シール部１３を有している。これらのシール部のうち、第１シール部１１は、袋底部に位置し、包装袋１の内側に折り込まれている。よって、第１シール部１１は、通常の姿勢では外部から見えない部位に配置されている。第２シール部１２と第３シール部１３は、包装袋１の両側端縁に配置されている。 Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
FIG. 1 is a view showing a packaging bag according to an embodiment of the present invention.
The packaging bag 1 is formed by heat-sealing and cutting the belt-shaped packaging film 10. The packaging bag 1 has a first seal part 11, a second seal part 12, and a third seal part 13. Among these seal portions, the first seal portion 11 is located at the bottom of the bag and is folded inside the packaging bag 1. Therefore, the 1st seal | sticker part 11 is arrange | positioned in the site | part which cannot be seen from the outside in a normal attitude | position. The second seal portion 12 and the third seal portion 13 are disposed on both side edges of the packaging bag 1.

なお、第３シール部１３の上部付近には、必須ではないが、開封用のノッチ１４が形成してある。また、包装袋１の上縁部は、帯状の包装フィルム１０を二つ折りにして形成してあるが、必要に応じて当該上縁部にも熱シールを施してもよい。   Although not essential, an opening notch 14 is formed near the upper portion of the third seal portion 13. Moreover, although the upper edge part of the packaging bag 1 is formed by folding the belt-shaped packaging film 10 in half, the upper edge part may be heat-sealed as necessary.

また、包装袋１の底部は、角部が斜めに熱シールされて斜めシール部１５ａを形成している。この斜めシール部１５ａを形成することで袋底部を船底形にでき、安定して包装袋１を直立配置することが可能となる。ここで、本実施形態では、裏面のみ熱シール性を有する包装フィルム１０を使用して包装袋１を成形している。そうすると、包装袋１の底部は、正面側および背面側の包装フィルム１０と、内側に折り込まれた包装フィルム１０との相互間で、包装フィルム１０の表面どうしが接触することになるため、熱シールすることができない。そこで、本実施形態では、第１シール部１１とともに内側に折り込まれた領域の角部近傍に切抜き部１６を形成し、当該切抜き部１６を透して、正面側および背面側に配置された包装フィルム１０の裏面を熱シールすることで、貼着シール部１５ｂを形成している。   In addition, the bottom of the packaging bag 1 is heat-sealed diagonally to form a diagonally sealed portion 15a. By forming the oblique seal portion 15a, the bottom of the bag can be formed into a ship bottom, and the packaging bag 1 can be stably placed upright. Here, in this embodiment, the packaging bag 1 is shape | molded using the packaging film 10 which has heat sealing property only on the back surface. If it does so, since the surface of the packaging film 10 will contact between the packaging film 10 of the front side and the back side, and the packaging film 10 folded inward, the bottom part of the packaging bag 1 is heat-sealed. Can not do it. Therefore, in the present embodiment, the cutout portion 16 is formed in the vicinity of the corner portion of the region folded inward together with the first seal portion 11, and the cutout portion 16 is passed through the packaging disposed on the front side and the back side. The adhesive seal 15b is formed by heat-sealing the back surface of the film 10.

本実施形態の包装袋１は、製作される過程で内部に製品が充填される。すなわち、本実施形態の包装袋１は、後述する縦形製袋充填包装装置により成形される。   The packaging bag 1 of this embodiment is filled with a product in the process of being manufactured. That is, the packaging bag 1 of this embodiment is shape | molded by the vertical bag making filling packaging apparatus mentioned later.

次に、上述した包装袋を成形するための本発明の実施形態に係る縦形製袋充填包装装置について説明する。
図２は本発明の実施形態に係る縦形製袋充填包装装置の概要を示す斜視図である。同図に示すように、帯状の包装フィルム１０はリール２０に巻回されており、繰出しベルト２１（フィルム繰出し手段）の駆動によってリール２０から繰り出されていく。 Next, a vertical bag making filling and packaging apparatus according to an embodiment of the present invention for forming the above-described packaging bag will be described.
FIG. 2 is a perspective view showing an outline of the vertical bag making filling and packaging apparatus according to the embodiment of the present invention. As shown in the figure, the belt-shaped packaging film 10 is wound around a reel 20 and is fed out from the reel 20 by driving of a feeding belt 21 (film feeding means).

リール２０から繰り出された包装フィルム１０の搬送軌道には、切り抜き用のパンチ２２（切抜き手段）が設けてある。本実施形態では、このパンチ２２を使用して、繰り出される帯状の包装フィルム１０に対し、後述するように第１シール部１１とともに内側へ折り込まれる領域の角部近傍に相当する部位に切抜き部１６を形成している。本実施形態では、切抜き部１６として円形状の透孔を穿設しているが、これに限定されるものではなく、包装フィルム１０の表面側と背面側の各裏面を接触できるようにするものであれば切欠き等であってもかまわない。   A cutout punch 22 (cutout means) is provided on the transport track of the packaging film 10 fed out from the reel 20. In this embodiment, the cutout portion 16 is formed at a portion corresponding to the vicinity of the corner portion of the region folded inward together with the first seal portion 11 with respect to the belt-shaped packaging film 10 fed out using the punch 22 as will be described later. Is forming. In the present embodiment, a circular through hole is formed as the cutout portion 16, but the present invention is not limited to this, and the back surface of the packaging film 10 can be brought into contact with each back surface. If so, it may be a notch.

包装フィルム１０の搬送軌道において、切り抜き用のパンチ２２を通過した下流方向には、製袋筒２３が鉛直方向に配設されている。この製袋筒２３は、繰り出されてきた帯状の包装フィルム１０を周面に巻き付けて両側端を重ね合わせる機能を有している。
さらに、製袋筒２３の対向位置には、縦シーラ２４（縦シール手段）が設けてある。この縦シーラ２４は、製袋筒２３により重ね合わされた包装フィルム１０の両側端を、繰り出し方向に熱シールして第１シール部１１を形成する。 In the conveyance track of the packaging film 10, a bag-making cylinder 23 is disposed in the vertical direction in the downstream direction after passing through the punch 22 for cutting. This bag-making cylinder 23 has a function of winding the belt-shaped packaging film 10 that has been drawn out around the circumferential surface and overlapping both ends.
Further, a vertical sealer 24 (vertical sealing means) is provided at a position facing the bag-making cylinder 23. The vertical sealer 24 heat seals both side ends of the packaging film 10 overlapped by the bag making cylinder 23 in the feeding direction to form the first seal portion 11.

製袋筒２３の下方には、縦シーラ２４によって熱シールされた第１シール部１１の通過軌道に入り込んで、当該第１シール部１１を筒状の包装フィルム１０の内側へ折り込むフィルム折り込み具２７（フィルム折り込み手段）が設けてある。このフィルム折り込み具２７としては、包装フィルム１０の一部を内側へ折り込む機能を有する各種構成が適用できる。例えば、ガゼット包装袋１を成形する縦形充填包装装置に従来から備わっている公知のガゼット折り込み用の構成要素を、フィルム折り込み具２７に適用することができる。   Below the bag-making cylinder 23, a film folding tool 27 enters the passage track of the first seal portion 11 heat-sealed by the vertical sealer 24 and folds the first seal portion 11 into the cylindrical packaging film 10. (Film folding means) is provided. As the film folding tool 27, various configurations having a function of folding a part of the packaging film 10 inward can be applied. For example, a known component for folding a gusset that is conventionally provided in a vertical filling and packaging apparatus for forming the gusset packaging bag 1 can be applied to the film folding tool 27.

さらに、筒状に成型された包装フィルム１０が繰り出されてくる搬送軌道であって、フィルム折り込み具２７よりも下方の位置には、横シーラ２５（横シール手段）が設けてある。この横シーラ２５は、第１シール部１１が内側に折り込まれた状態の包装フィルム１０を、繰り出し方向と直交する方向に横シールして、第２シール部１２と第３シール部１３を形成する機能を備えている。本実施形態では、連続成形される包装袋１の境界部分を一対の横シーラ２５が挟み込み熱シールする構成となっており、境界部分の下側熱シール領域が下方に連なる包装袋１の第３シール部１３となり、同じく境界部分の上側熱シール領域が上方に連なる包装袋１の第２シール部１２となる。   Further, a horizontal sealer 25 (horizontal sealing means) is provided at a position lower than the film folding tool 27 in the conveyance track through which the packaging film 10 formed into a cylindrical shape is drawn out. The horizontal sealer 25 forms a second seal portion 12 and a third seal portion 13 by laterally sealing the packaging film 10 in a state in which the first seal portion 11 is folded inward in a direction perpendicular to the feeding direction. It has a function. In the present embodiment, the boundary portion of the continuously formed packaging bag 1 is sandwiched and heat-sealed by a pair of horizontal sealers 25, and the third heat-sealing region of the packaging bag 1 in which the lower heat sealing region of the boundary portion extends downward. It becomes the seal part 13 and also becomes the second seal part 12 of the packaging bag 1 in which the upper heat seal region at the boundary part continues upward.

図２では示されていないが、横シーラ２５の内部には、第２シール部１２と第３シール部１３の間を横方向に切断するとともに、ノッチ１４を形成するカッタが組み込まれている。
また、図２には示されていないが、製袋筒２３の中空部内には同軸状に充填筒が配設してあり、その上端に連結したホッパ内に貯留してある製品を、充填筒を介して縦シールされた包装フィルム１０の内部へ充填する機能を有している。 Although not shown in FIG. 2, a cutter that cuts between the second seal portion 12 and the third seal portion 13 in the lateral direction and forms a notch 14 is incorporated in the horizontal sealer 25.
Although not shown in FIG. 2, a filling cylinder is coaxially disposed in the hollow portion of the bag-making cylinder 23, and the product stored in the hopper connected to the upper end of the filling cylinder is used as the filling cylinder. It has the function to fill the inside of the packaging film 10 which is vertically sealed via the.

横シーラ２５には、第１シール部１１が内側に折り込まれた側の端縁角部を斜めに熱シールする斜めシーラ２６ａ（斜めシール手段）と、切抜き部１６を透かして、正面側正面側および背面側に配置された包装フィルム１０の裏面を熱シールする貼着シーラ２６ｂ（貼着シール手段）が一体に設けてある。   The horizontal sealer 25 has an oblique sealer 26a (diagonal sealing means) that obliquely heat-seals the edge corner portion on the side where the first seal portion 11 is folded inward, and the cutout portion 16 through the front side. And the sticking sealer 26b (sticking sealing means) which heat-seals the back surface of the packaging film 10 arrange | positioned at the back side is provided integrally.

次に、上述した本実施形態に係る縦形製袋充填包装装置による包装袋１の製造方法について、図３および図４を参照して説明する。
図３に示すように、リール２０から繰り出されてきた包装フィルム１０は、パンチ２２によって、第１シール部１１とともに内側へ折り込まれる領域の角部近傍に相当する部位に切抜き部１６が形成される。
次いで、包装フィルム１０は製袋筒２３の周面に巻き付けられ、且つ両側端が重ね合わせられて筒状に成形される（図３の１０Ａ）。さらに、重ね合わされた包装フィルム１０の両側端は、縦シーラ２４によって繰り出し方向に熱シールされ、当該熱シール部分が第１シール部１１を形成する（図４（ａ）参照）。 Next, the manufacturing method of the packaging bag 1 by the vertical bag making filling and packaging apparatus according to this embodiment described above will be described with reference to FIGS.
As shown in FIG. 3, the packaging film 10 fed out from the reel 20 has a cutout portion 16 formed in a portion corresponding to the vicinity of the corner of the region folded inward together with the first seal portion 11 by the punch 22. .
Next, the packaging film 10 is wound around the peripheral surface of the bag-making cylinder 23, and both ends are overlapped to form a cylinder (10A in FIG. 3). Furthermore, the both ends of the overlapped packaging film 10 are heat-sealed in the feeding direction by the vertical sealer 24, and the heat-sealed portion forms the first seal portion 11 (see FIG. 4A).

続いて、フィルム折り込み具２７により、包装フィルム１０の第１シール部１１を内側へ折り込む（図４（ｂ）参照）。そして、横シーラ２５の上部領域によって包装フィルムを、繰り出し方向と直交する方向に横シールして、第２シール部１２を形成すると同時に、斜めシーラ２６ａにより第１シール部１１が内側に折り込まれた側の一方の端縁角部を斜めに熱シールして斜めシール部１５ａを形成するとともに、貼着シーラ２６ｂにより切抜き部１６を透かして正面側および背面側に配置された包装フィルム１０の裏面どうしを熱シールして貼着シール部１５ｂを形成する（図４（ｃ）参照）。
それから、包装フィルム１０の内部へ製品を充填した後、横シーラ２５の下側領域によって包装フィルム１０を、繰り出し方向と直交する方向に横シールして、第３シール部１３を形成すると同時に、斜めシーラ２６ａにより第１シール部１１が内側に折り込まれた側の他方の端縁角部を斜めに熱シールして斜めシール部１５ａを形成するとともに、貼着シーラ２６ｂにより切抜き部１６を透かして正面側および背面側に配置された包装フィルム１０の裏面どうしを熱シールして貼着シール部１５ｂを形成する（図４（ｃ）参照）。
包装袋１の第３シール部１３と、次の包装袋１の第２シール部１２とは同時に形成され、その間をカッタ（図示せず）により横方向に切断して、図１に示した包装袋１が製造される（図４（ｄ）参照）。 Then, the 1st seal | sticker part 11 of the packaging film 10 is folded inward with the film folding tool 27 (refer FIG.4 (b)). Then, the packaging film is laterally sealed in the direction perpendicular to the feeding direction by the upper region of the lateral sealer 25 to form the second seal portion 12, and at the same time, the first seal portion 11 is folded inward by the oblique sealer 26a. One end corner portion of the side is heat-sealed obliquely to form an oblique seal portion 15a, and the back surfaces of the packaging film 10 disposed on the front side and the back side through the cutout portion 16 by the sticker sealer 26b Is heat-sealed to form an adhesive seal portion 15b (see FIG. 4C).
Then, after filling the inside of the packaging film 10, the packaging film 10 is laterally sealed by the lower region of the lateral sealer 25 in a direction orthogonal to the feeding direction to form the third seal portion 13, and at the same time The other end corner portion of the side where the first seal portion 11 is folded inward by the sealer 26a is heat-sealed obliquely to form an oblique seal portion 15a, and the front side through the cutout portion 16 by the adhesive sealer 26b. The back surfaces of the packaging film 10 arranged on the side and the back side are heat-sealed to form an adhesive seal portion 15b (see FIG. 4C).
The third seal portion 13 of the packaging bag 1 and the second seal portion 12 of the next packaging bag 1 are formed at the same time, and the space between the third seal portion 13 and the second seal portion 12 of the next packaging bag 1 is cut by a cutter (not shown). The bag 1 is manufactured (see FIG. 4D).

なお、本発明は上述した実施形態に限定されるものではなく、要旨を逸脱しない範囲で種々の変形または応用が可能である。
例えば、図５に示すように、切抜き部１６を第２シール部１２および第３シール部１３が形成される位置に形成してもよい。その場合、横シーラ２５が、貼着シール手段を兼ね、貼着シール部１５ｂが第２シール部や第３シール部１３に囲まれた領域内に形成される。 In addition, this invention is not limited to embodiment mentioned above, A various deformation | transformation or application is possible in the range which does not deviate from a summary.
For example, as shown in FIG. 5, the cutout portion 16 may be formed at a position where the second seal portion 12 and the third seal portion 13 are formed. In that case, the horizontal sealer 25 also serves as an adhesive seal means, and the adhesive seal portion 15 b is formed in a region surrounded by the second seal portion and the third seal portion 13.

１：包装袋、１０：包装フィルム、１１：第１シール部、１２：第２シール部、１３：第３シール部、１４：ノッチ、１５ａ：斜めシール部、１５ｂ：貼着シール部、１６：切抜き部、
２０：リール、２１：繰出しベルト、２２：パンチ、２３：製袋筒、２４：縦シーラ、２５：横シーラ、２６ａ：斜めシーラ、２６ｂ：貼着シーラ、２７：フィルム折り込み具 1: packaging bag, 10: packaging film, 11: first sealing part, 12: second sealing part, 13: third sealing part, 14: notch, 15a: oblique sealing part, 15b: sticking sealing part, 16: Cutout,
20: reel, 21: feeding belt, 22: punch, 23: bag making cylinder, 24: vertical sealer, 25: horizontal sealer, 26a: oblique sealer, 26b: sticking sealer, 27: film folding tool

Claims (4)

帯状の包装フィルムの両側端を重ね合わせて熱シールした第１シール部と、
前記第１シール部の形成をもって筒状に形成された包装フィルムの一方の開口部を閉塞する第２シール部と、
同じく前記包装フィルムの他方の開口部を閉塞する第３シール部と、を備え、
且つ、前記第１シール部を内側に折り込んだ状態で、前記第２および第３シール部が形成され、当該折り込み部分を袋底部としたことを特徴とする包装袋。 A first seal portion that is heat-sealed by overlapping both side ends of the belt-shaped packaging film;
A second seal portion that closes one opening of the packaging film formed in a cylindrical shape with the formation of the first seal portion;
A third seal portion that closes the other opening of the packaging film,
And the said 2nd and 3rd seal | sticker part is formed in the state which folded the said 1st seal | sticker inside, The said folded part was made into the bag bottom part, The packaging bag characterized by the above-mentioned. 前記包装フィルムは、裏面に熱シール性を有しており、
前記第１シール部とともに内側に折り込まれた領域の角部近傍に切抜き部を形成し、当該切抜き部を透して、正面側および背面側に配置された前記包装フィルムの裏面を熱シールしてあることを特徴とする請求項１の包装袋。 The packaging film has heat sealability on the back surface,
A cutout is formed in the vicinity of a corner of the region folded inward together with the first seal, and the backside of the packaging film disposed on the front side and the backside is heat-sealed through the cutout. The packaging bag according to claim 1, wherein the packaging bag is provided. 請求項１の包装袋を成形する機能を備えた縦形製袋充填包装装置であって、
帯状の包装フィルムを繰り出すフィルム繰出し手段と、
繰り出されてきた包装フィルムを周面に巻き付けて両側端を重ね合わせる製袋筒と、
前記製袋筒により重ね合わされた包装フィルムの両側端を、繰り出し方向に熱シールして前記第１シール部を形成する縦シール手段と、
前記第１シール部を内側に折り込むフィルム折り込み手段と、
前記第１シール部が内側に折り込まれた状態の包装フィルムを、繰り出し方向と直交する方向に横シールして前記第２および第３シール部を形成する横シール手段と、を備えたことを特徴とする縦形製袋充填包装装置。 A vertical bag making filling and packaging apparatus having a function of forming the packaging bag of claim 1,
Film feeding means for feeding out a belt-shaped packaging film;
A bag-making cylinder that wraps the wrapped packaging film around the circumference and overlaps both ends;
Vertical sealing means for heat-sealing both side ends of the packaging film overlaid by the bag-making cylinder in the feeding direction to form the first seal portion;
Film folding means for folding the first seal portion inward;
And a lateral sealing means for laterally sealing the packaging film in a state in which the first seal portion is folded inward in a direction orthogonal to a feeding direction to form the second and third seal portions. Vertical bag making filling and packaging equipment. 繰り出される帯状の包装フィルムに対し、前記第１シール部とともに内側に折り込まれる領域の角部近傍に相当する部位に切抜き部を形成する切抜き手段と、
前記袋底部の角部を斜めに熱シールする斜めシール手段と、
前記切抜き部を透かして、正面側および背面側に配置された前記包装フィルムの裏面を熱シールする貼着シール手段と、を備えたことを特徴とする請求項３の縦形製袋充填包装装置。 Cutout means for forming a cutout portion in a portion corresponding to the vicinity of a corner portion of the region folded inward together with the first seal portion with respect to the belt-shaped packaging film to be fed out,
An oblique sealing means for obliquely heat-sealing a corner of the bag bottom;
The vertical bag making filling and packaging apparatus according to claim 3, further comprising: an adhesive sealing means for heat-sealing the back surface of the packaging film disposed on the front side and the back side through the cutout portion.
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