JP2011251759A - Vertical filling and packaging machine - Google Patents

Vertical filling and packaging machine Download PDF

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JP2011251759A
JP2011251759A JP2010128751A JP2010128751A JP2011251759A JP 2011251759 A JP2011251759 A JP 2011251759A JP 2010128751 A JP2010128751 A JP 2010128751A JP 2010128751 A JP2010128751 A JP 2010128751A JP 2011251759 A JP2011251759 A JP 2011251759A
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film
tubular film
vertical
feed
packaging machine
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Orihiro Tsuruta
織寛 鶴田
Masaki Tsuruta
正貴 鶴田
Seiichi Imai
成一 今井
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Orihiro Engineering Co Ltd
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Abstract

PROBLEM TO BE SOLVED: To manufacture a four side sealed packaged product comprising a highly hermetic thin film.SOLUTION: In a vertical filling and packaging machine, the first feed rollers 4A, 4B are arranged above a squeezing roller 5 and also the second feed rollers 10A, 10B are arranged below the squeezing roller 5 preferably between a lateral seal device 6 and a cutting device 8. Accordingly, a tube-shape film 1 directly before contents are charged is held by the upper feed rollers 4A, 4B and the lower feed rollers 10A, 10B, a longitudinal seal part 1d and a lateral seal part 1e are not folded and curbed even though the contents are charged into the tube-shape film 1, and a line-shape large sag (waved part) is hardly generated in both sides of the tube-shape film 1.

Description

本発明は、フィルムから包装袋を成形しつつ、その包装袋内に上方から製品を投入する縦型充填包装機において、皺の発生を防止する機構に関する。   The present invention relates to a mechanism for preventing generation of wrinkles in a vertical filling and packaging machine in which a packaging bag is formed from a film and a product is put into the packaging bag from above.

従来、鉛直方向に送られたフィルムを筒状に成形しつつ、液状、ペースト状、または固形状の内容物を筒状フィルム内に入れ、筒状フィルムの上側部分と下側部分をそれぞれ熱シールすることで、封筒形包装袋に入れられた製品を製造する縦型充填包装機が知られている。   Conventionally, while the film sent in the vertical direction is formed into a cylindrical shape, the liquid, paste, or solid contents are put into the cylindrical film, and the upper portion and the lower portion of the cylindrical film are heat sealed, respectively. Thus, a vertical filling and packaging machine for manufacturing a product put in an envelope-type packaging bag is known.

縦型充填包装機で製造される包装袋には４方シールタイプがある。このタイプは、鉛直方向に延びる帯状のフィルムをその幅中央で折り曲げて筒状に成形し、この筒状フィルムの横側の両端を縦方向に熱シールし、さらに筒状フィルムの上側部分と下側部分のそれぞれを横方向に熱シールしたものである。   A packaging bag manufactured by a vertical filling and packaging machine includes a four-side seal type. In this type, a belt-like film extending in the vertical direction is bent at the center of the width to be formed into a cylindrical shape, both ends on the lateral side of the cylindrical film are heat-sealed in the vertical direction, and the upper and lower portions of the cylindrical film are further Each of the side portions is heat-sealed in the lateral direction.

ここで、４方シールタイプの封筒形包装袋を製造する例で従来の縦型充填包装機を説明する。図３は従来の縦型充填包装機（４方シールタイプ）の主要部を示す図である。   Here, a conventional vertical filling and packaging machine will be described as an example of manufacturing a four-side seal type envelope packaging bag. FIG. 3 is a view showing a main part of a conventional vertical filling and packaging machine (four-side seal type).

図３に示すように、シート状のフィルムが鉛直方向に送られ、製袋ガイド２によって、シート状のフィルムの幅方向端部が互いに重ね合わせられて筒状フィルム１が形成される。   As shown in FIG. 3, the sheet-like film is fed in the vertical direction, and the end portions in the width direction of the sheet-like film are overlapped with each other by the bag making guide 2 to form the tubular film 1.

製袋ガイド２の下方には、筒状に成形されたフィルム１の折り曲げ部と重ね合わせ部のそれぞれに対して縦方向に熱シールを行う複数の縦シール装置３が配置されている。   Below the bag making guide 2, a plurality of vertical sealing devices 3 that perform heat sealing in the vertical direction with respect to each of the folded portion and the overlapping portion of the film 1 formed into a cylindrical shape are arranged.

複数の縦シール装置３は、筒状フィルム１の折り曲げ部と重ね合わせ部を間に挟んだ状態で対向配置され、互いに離間する方向および互いに当接する方向に移動可能である。これらの縦シール装置３によって、筒状フィルム１の両側縁に縦シール部１ｄが形成される。   The plurality of vertical sealing devices 3 are disposed to face each other with the folded portion and the overlapping portion of the tubular film 1 sandwiched therebetween, and are movable in a direction away from each other and a direction in contact with each other. With these vertical sealing devices 3, vertical sealing portions 1 d are formed on both side edges of the tubular film 1.

各縦シール装置３の上側には、筒状フィルム１の両側側縁をそれぞれ挟みながら回転して筒状フィルム１を下方に案内する１対のガイドローラ９が設けられている。   On the upper side of each vertical seal device 3, a pair of guide rollers 9 are provided that rotate while pinching both side edges of the tubular film 1 to guide the tubular film 1 downward.

各縦シール装置３の下側には、筒状フィルム１の両側側縁付近をそれぞれ挟みながら、不図示のモータで回転駆動されて筒状フィルム１を下方へ送る一対の送りローラ４が設けられている。   A pair of feed rollers 4 that are driven to rotate by a motor (not shown) and feed the tubular film 1 downward while sandwiching the vicinity of both side edges of the tubular film 1 are provided below each vertical sealing device 3. ing.

送りローラ４の下側には、筒状フィルム１を間において対向配置され、送りローラ４の回転に同期して回転させられる１対のシゴキローラ５が設けられている。シゴキローラ５は、筒状フィルム１を横方向の全幅にわたって挟み込むことによって、筒状フィルム１内に投入された内容物を分割するものであり、互いに離間する方向および互いに当接する方向に移動可能である。   Below the feed roller 4, a pair of squeeze rollers 5 are provided so as to be opposed to each other with the tubular film 1 interposed therebetween and rotated in synchronization with the rotation of the feed roller 4. The squeeze roller 5 divides the contents put into the tubular film 1 by sandwiching the tubular film 1 over the entire width in the lateral direction, and is movable in a direction away from each other and a direction in contact with each other. .

さらに、筒状フィルム１内に製品を投入する投入パイプ７が、製袋ガイド２の上方から製袋ガイド２の内側を通ってシゴキローラ５の直上まで鉛直方向に延在している。   Further, an input pipe 7 for introducing a product into the tubular film 1 extends in the vertical direction from above the bag making guide 2 to the position just above the squeeze roller 5 through the inside of the bag making guide 2.

シゴキローラ５の下方には、筒状フィルム１を間において対向配置され、筒状フィルム１の全幅にわたって横方向の熱シール部（以下、横シール部１ｅと呼ぶ。）を形成する一対の横シール装置６が配置されている。   Below the squeeze roller 5, a pair of lateral seal devices are disposed opposite to each other with the tubular film 1 therebetween, and form a lateral heat seal portion (hereinafter referred to as a transverse seal portion 1 e) across the entire width of the tubular film 1. 6 is arranged.

横シール装置６の下方には、製品が封入された筒状フィルム部分を切り離す切断装置（不図示）が配置されている。   A cutting device (not shown) for cutting off the cylindrical film portion in which the product is sealed is disposed below the horizontal sealing device 6.

上述した充填包装機は、縦シール装置３により筒状フィルム１の両側縁にそれぞれ縦シール部１ｄを形成し、横シール装置６で筒状フィルム１の横方向に横シール部１ｅを形成し、シゴキローラ５の間を開いた状態で、筒状フィルム１内に投入パイプ７から製品を投入する。この投入量はシゴキローラ５の位置を越える程度とされる。それからシゴキローラ５の間を閉じ、シゴキローラ５によって、筒状フィルム１内の内容物をフィルム送り方向にて分割する。この状態で送りローラ４及びシゴキローラ５を回転させて筒状フィルム１を下方に送ると、シゴキローラ５で筒状フィルム１が偏平に押し潰されつつ、筒状フィルム１内に内容物が存在しない空部分が形成される。   In the filling and packaging machine described above, the vertical seal device 3 forms the vertical seal portions 1d on both side edges of the cylindrical film 1, and the horizontal seal device 6 forms the horizontal seal portion 1e in the horizontal direction of the cylindrical film 1, With the gap between the squeeze rollers 5 open, the product is put into the tubular film 1 from the feeding pipe 7. This input amount is set to exceed the position of the squeeze roller 5. Then, the gap between the squeeze rollers 5 is closed, and the squeeze rollers 5 divide the contents in the tubular film 1 in the film feeding direction. When the feed roller 4 and the squeeze roller 5 are rotated in this state to feed the tubular film 1 downward, the squeeze roller 5 squeezes the tubular film 1 flatly, and the empty content in which no content exists in the tubular film 1. A part is formed.

空部分が横シール装置６の所まで送られたら、筒状フィルム１の送りを停止し、対向する横シール装置６どうしを接近させていく。これにより横シール装置６間に挟まれたフィルム同士が熱溶着されて横シール部１ｅが形成され、結果、筒状フィルム１の上側の開口が密閉される。その後、横シール部１ｅの所で切断装置によりフィルムを切断すると、製品が入った４方シールタイプの封筒形包装袋（以下、４方シール包装品）が得られる。   When the empty portion is sent to the position of the horizontal sealing device 6, the feeding of the tubular film 1 is stopped and the opposing horizontal sealing devices 6 are brought closer to each other. As a result, the films sandwiched between the lateral sealing devices 6 are thermally welded to form the lateral sealing portion 1e, and as a result, the upper opening of the tubular film 1 is sealed. Thereafter, when the film is cut with a cutting device at the side seal portion 1e, a four-side seal type envelope-shaped packaging bag (hereinafter referred to as a four-side sealed package product) containing the product is obtained.

なお、従来の縦型充填包装機の機構例は下記の特許文献１および２にも記載されている。   An example of the mechanism of a conventional vertical filling and packaging machine is also described in Patent Documents 1 and 2 below.

特開２０００−６２７０８号公報JP 2000-62708 A 特開２００６−３４１８５４号公報JP 2006-341854 A

上述した縦型充填包装機を非常に薄いフィルムからなる４方シール包装品の製造に利用することが検討されている。   The use of the above-described vertical filling and packaging machine for the production of a four-side sealed package made of a very thin film has been studied.

しかし、従来の縦型充填包装機を使って上記のような薄いフィルムの４方シール包装品を製造したところ、厚いフィルムでは生じなかった横シール部の皺が発生することがあった。包装品の中身が薬剤や食品等である場合はその包装袋には高い気密性能が要求される。横シール部における皺の発生は袋の気密性低下に繋がるため、薄いフィルムの包装品を製造できるように従来の縦型充填包装機を改善する必要があった。   However, when a four-side sealed package with a thin film as described above was manufactured using a conventional vertical filling and packaging machine, wrinkles in the lateral seal portion that did not occur with a thick film sometimes occurred. When the contents of the package are drugs, foods, etc., the packaging bag is required to have high airtightness. The generation of wrinkles in the horizontal seal portion leads to a decrease in the airtightness of the bag. Therefore, it is necessary to improve the conventional vertical filling and packaging machine so that a thin film package can be manufactured.

そこで、本件出願人は従来の縦型充填包装機において４方シール包装品の横シール部に皺が発生する原因を考えたところ、次のような原因によることがわかった。その原因を、図３及び図４を参照しながら説明する。図４の（ａ）は、薄厚の筒状フィルムの中に内容物が投入されたときの状態を包装機の正面側から見た概略図、（ｂ）はシゴキローラ間に挟まれこまれる筒状フィルムの様子を包装機の上から見た概略図である。   Therefore, the present applicant considered the cause of wrinkles in the horizontal seal portion of the four-side sealed package product in the conventional vertical filling and packaging machine, and found that it was due to the following reason. The cause will be described with reference to FIGS. 4A is a schematic view of the state when the contents are put into a thin cylindrical film as seen from the front side of the packaging machine, and FIG. 4B is a cylindrical shape sandwiched between squeeze rollers. It is the schematic which looked at the mode of the film from the top of the packaging machine.

図３から分かるように、内容物投入直前の筒状フィルム１は、横シール部１ｅを底部として縦方向に延び、上方での送りローラ４の把持で吊られた状態である。このような筒状フィルム１の内部へ製品が投入されると、図４（ａ）に示すように筒状フィルム１の中腹部が膨らんで、縦シール部１ｄ及び横シール部１ｅが折れ曲がり、筒状フィルム１の両面に線状の大きなたるみ（波を打った部分）が出来やすい。この状態で図４（ｂ）に示すように筒状フィルム１がシゴキローラ５間に挟まれると、たるみ部分がそのまま偏平に潰されて皺となる。   As can be seen from FIG. 3, the tubular film 1 immediately before the contents are charged is in a state where it extends in the vertical direction with the horizontal seal portion 1 e as a bottom and is hung by gripping the feed roller 4 at the top. When a product is introduced into the cylindrical film 1, the middle part of the cylindrical film 1 swells as shown in FIG. 4 (a), and the vertical seal portion 1 d and the horizontal seal portion 1 e are bent. It is easy to form a large linear slack (waved portion) on both sides of the film 1. In this state, as shown in FIG. 4B, when the tubular film 1 is sandwiched between the squeeze rollers 5, the slack portion is flattened as it is to become a wrinkle.

厚みのあるフィルムを使用したときはたるみの発生は少なく問題にならかったが、フィルム厚が薄くなるほどたるみが多くできる。このような原因により、薄いフィルムでは横シール部に皺が入ることがあり、気密性能が低下することが判った。   When a thick film was used, the occurrence of sagging was small and it was not a problem, but the sagging could be increased as the film thickness was reduced. For these reasons, it has been found that a thin film may have wrinkles in the horizontal seal portion, resulting in a decrease in hermetic performance.

本発明の目的は、上記のような課題を解消し、気密性の高い、薄いフィルムからなる４方シール包装品を提供することにある。   An object of the present invention is to solve the above-described problems and to provide a four-side sealed package made of a thin film having high airtightness.

本発明の一の態様による縦型充填包装機は、製袋ガイドと、縦シール装置と、複数対の送りローラと、投入パイプと、一対のシゴキローラと、横シール装置と、切断装置と、を備えている。   A vertical filling and packaging machine according to one aspect of the present invention includes a bag making guide, a vertical sealing device, a plurality of pairs of feed rollers, a feeding pipe, a pair of squeeze rollers, a horizontal sealing device, and a cutting device. I have.

製袋ガイドは、搬送されているシート状のフィルムをその幅方向中央で折り曲げて該フィルムの幅方向端部を互いに重ね合わせることで筒状フィルムを形成するものである。   A bag-making guide forms a cylindrical film by bending the sheet-like film being conveyed at the center in the width direction and overlapping the end portions in the width direction of the film.

縦シール装置は、シート状のフィルムの幅中央での折り曲げ部とその幅方向端部の重ね合わせ部に対応する筒状フィルムの横方向両側の側縁にそれぞれ熱シールを行って縦シール部を形成する装置である。   The vertical sealing device performs heat sealing on the side edges on both sides of the tubular film corresponding to the folded portion at the width center of the sheet-like film and the overlapping portion of the widthwise end portions thereof to form the vertical sealing portion. It is an apparatus to form.

送りローラは、筒状フィルムの横方向両側の側縁付近を挟み込みつつ回転駆動されて、縦シール部が形成された筒状フィルムを下方へ送るものである。   The feed roller is rotationally driven while sandwiching the vicinity of the side edges on both sides in the lateral direction of the tubular film, and feeds the tubular film formed with the vertical seal portion downward.

投入パイプは、筒状フィルムの中に内容物を投入するパイプである。   The input pipe is a pipe that inputs the contents into the cylindrical film.

シゴキローラは、投入パイプの内容物の出口の下方にあって縦シール装置の下方に配設されている。該シゴキローラの対は、内容物が投入された筒状フィルムを挟み込みつつ筒状フィルムの下方への送りに伴って回転することで筒状フィルムに内容物が入っていない空部を形成する。   The squeeze roller is disposed below the outlet of the contents of the input pipe and below the vertical seal device. The pair of squeeze rollers form an empty portion in which no content is contained in the cylindrical film by rotating with the downward feeding of the cylindrical film while sandwiching the cylindrical film in which the content is charged.

横シール装置は、一対のシゴキローラの下方に配設されている。そして、該横シール装置は、筒状フィルムの空部の横方向全幅に亘って熱シールを行って横シール部を形成する装置である。   The horizontal sealing device is disposed below the pair of squeeze rollers. And this horizontal sealing apparatus is an apparatus which forms a horizontal seal part by performing heat sealing over the horizontal direction full width of the empty part of a cylindrical film.

切断装置は、横シール装置の下方に配設されており、筒状フィルムを横シール部の位置で切断する装置である。   The cutting device is disposed below the horizontal sealing device, and is a device that cuts the tubular film at the position of the horizontal sealing portion.

そして、上記課題を解決するために、上記の複数対の送りローラは、第１の送りローラの対と第２の送りローラの対を含み、該第１の送りローラの対はシゴキローラの上方に配置され、該第２の送りローラの対はシゴキローラの下方で、かつ横シール装置と切断装置の間に配置されている。   In order to solve the above-described problem, the plurality of pairs of feed rollers include a first feed roller pair and a second feed roller pair, and the first feed roller pair is located above the squeeze roller. The second feed roller pair is disposed below the squeeze roller and between the transverse sealing device and the cutting device.

このような態様では、第１の送りローラの対と第２の送りローラの対とが、シゴキローラの位置を間にして、内容物投入直前の筒状フィルムの上側と下側の部分を保持することとなる。つまり、従来技術（図３参照）で説明したようにシゴキローラの上方の送りローラだけで吊り下げられている状態ではない。この状態の筒状フィルムに内容物を投入したとき、縦シール部及び横シール部が折れ曲がらないので、筒状フィルム１の両面に線状の大きなたるみが発生し難い。結果、シゴキローラの間に筒状フィルムを挟み込んだときに皺が出来ず、したがって、横シール部を形成した際に横シール部に皺が入ることもなく、製造された４方シール包装品は高い気密性能を持つものとなる。   In such an embodiment, the first feed roller pair and the second feed roller pair hold the upper and lower portions of the cylindrical film immediately before the contents are put, with the position of the squeeze roller in between. It will be. In other words, as described in the prior art (see FIG. 3), it is not in a state of being suspended only by the feed roller above the squeeze roller. When the contents are put into the cylindrical film in this state, the vertical seal portion and the horizontal seal portion are not bent, so that a large linear slack is hardly generated on both surfaces of the cylindrical film 1. As a result, wrinkles are not formed when a cylindrical film is sandwiched between squeeze rollers, and therefore, when a horizontal seal portion is formed, wrinkles do not enter the horizontal seal portion, and the manufactured four-side sealed package is high. It will have airtight performance.

以上説明したように本発明によれば、気密性の高い、薄いフィルムからなる４方シール包装品を製造することができる。
As described above, according to the present invention, a four-side sealed package made of a thin film with high airtightness can be manufactured.

本発明の一実施形態による縦型充填包装機（４方シールタイプ）の主要部を示す正面図。The front view which shows the principal part of the vertical type filling packaging machine (four-side seal type) by one Embodiment of this invention. 本発明の一実施形態による縦型充填包装機（４方シールタイプ）の主要部を示す斜視図。The perspective view which shows the principal part of the vertical filling packaging machine (4-way seal type) by one Embodiment of this invention. 従来の縦型充填包装機（４方シールタイプ）の主要部を示す斜視図。The perspective view which shows the principal part of the conventional vertical filling packaging machine (four-side seal type). 図３の包装機で横シール部に皺が発生する原因を説明する図。The figure explaining the cause which wrinkles generate | occur | produce in a horizontal seal part with the packaging machine of FIG.

以下、本発明の実施の形態について図面を参照して説明する。ここでは、４方シールタイプ包装袋のレトルトパウチを製造する縦型充填包装機を例にとって説明する。   Hereinafter, embodiments of the present invention will be described with reference to the drawings. Here, a vertical filling and packaging machine for producing a retort pouch for a four-side seal type packaging bag will be described as an example.

図１は本発明の一実施例による縦型充填包装機を模式的に示す正面図、図２はこの実施例の縦型充填包装機を模式的に示した斜視図である。但し、図３に示した従来の縦型充填包装機と同じ構成要素については同じ符号を付して説明する。   FIG. 1 is a front view schematically showing a vertical filling and packaging machine according to an embodiment of the present invention, and FIG. 2 is a perspective view schematically showing the vertical filling and packaging machine of this embodiment. However, the same components as those in the conventional vertical filling and packaging machine shown in FIG.

図１及び図２を参照すると、本実施例の縦型充填包装機は、縦方向に送られるシート状のフィルム（例えば５０ミクロン厚の薄いフィルム）の横幅方向端部を互いに重ね合わせて偏平な筒状フィルム１を形成するための製袋ガイド２を備える。   Referring to FIGS. 1 and 2, the vertical filling and packaging machine of the present embodiment is flattened by overlapping the end portions in the width direction of sheet-like films (for example, thin films having a thickness of 50 microns) fed in the vertical direction. A bag-making guide 2 for forming the tubular film 1 is provided.

製袋ガイド２の下方には、偏平筒状に成形されたフィルム１の折り曲げ部１ａと重ね合わせ部１ｂのそれぞれに対して縦方向に熱シールを行う複数の縦シール装置３Ａ，３Ｂが配置されている。筒状フィルム１の折り曲げ部１ａと重ね合わせ部１ｂは筒状フィルム１の横方向の両側縁にそれぞれ位置する。   Below the bag-making guide 2, a plurality of vertical sealing devices 3A and 3B that perform heat sealing in the vertical direction with respect to each of the bent portion 1a and the overlapping portion 1b of the film 1 formed into a flat cylindrical shape are disposed. ing. The bent portion 1 a and the overlapping portion 1 b of the tubular film 1 are respectively positioned on both lateral edges of the tubular film 1.

縦シール装置３Ａ，３Ｂは、筒状フィルム１の折り曲げ部１ａと重ね合わせ部１ｂの所を間に挟んだ状態で対向配置されている。対向する縦シール装置３Ａ，３Ｂは、不図示の駆動機構によって、互いに離間する方向および互いに当接する方向に移動可能である。これらの縦シール装置３Ａ，３Ｂによって、筒状フィルム１の横方向の両側縁に縦シール部１ｄが形成される。   The vertical sealing devices 3A and 3B are arranged to face each other with the bent portion 1a and the overlapping portion 1b of the tubular film 1 sandwiched therebetween. The opposing vertical seal devices 3A and 3B are movable in a direction away from each other and a direction in contact with each other by a drive mechanism (not shown). By these vertical sealing devices 3A and 3B, vertical sealing portions 1d are formed on both side edges of the tubular film 1 in the horizontal direction.

各縦シール装置３Ａ，３Ｂの上側および下側には、筒状フィルム１の横方向の両側端部を挟みながら回転して筒状フィルム１を下方に案内する一対のガイドローラ９Ａ，９Ｂが設けられている。   A pair of guide rollers 9A and 9B are provided on the upper and lower sides of each of the vertical sealing devices 3A and 3B to rotate while sandwiching both lateral ends of the cylindrical film 1 to guide the cylindrical film 1 downward. It has been.

各縦シール装置３Ａ，３Ｂの下側のガイドローラ９Ａ，９Ｂの下方には１対のシゴキローラ５が設けられている。また、各縦シール装置３Ａ，３Ｂの下側のガイドローラ９Ａ，９Ｂと、シゴキローラ５との間には、筒状フィルム１の横方向の両側付近をそれぞれ挟みながら、不図示のモータで回転駆動されて筒状フィルム１を下方へ送る複数対の第１の送りローラ４Ａ，４Ｂが配設されている。   A pair of squeeze rollers 5 is provided below the guide rollers 9A and 9B on the lower side of the vertical sealing devices 3A and 3B. Further, between the guide rollers 9A and 9B on the lower side of the vertical sealing devices 3A and 3B and the squeeze roller 5, both sides in the lateral direction of the cylindrical film 1 are sandwiched and driven by a motor (not shown). A plurality of pairs of first feed rollers 4A and 4B are arranged to feed the tubular film 1 downward.

一対のシゴキローラ５は、筒状フィルム１を横方向の全幅にわたって挟み込むことによって、筒状フィルム１内に投入された内容物を分割するものであり、筒状フィルム１を挟んだ状態で筒状フィルム１の送りに伴って回転させられる。そのため、１対のシゴキローラ５は筒状フィルム１を間において対向配置されており、不図示の駆動機構によって、互いに離間する方向および互いに当接する方向に移動可能である。   The pair of squeeze rollers 5 divides the contents put into the tubular film 1 by sandwiching the tubular film 1 over the entire width in the lateral direction, and the tubular film 1 is sandwiched between the tubular films 1. It is rotated as 1 is fed. For this reason, the pair of squeeze rollers 5 are disposed so as to face each other with the tubular film 1 therebetween, and can be moved in a direction away from each other and a direction in contact with each other by a drive mechanism (not shown).

筒状フィルム１内に液体またはペースト状の内容物を投入する投入パイプ７は、製袋ガイド２の上方から製袋ガイド２の内側を通ってシゴキローラ５の直上まで鉛直方向に延在している。   An input pipe 7 for supplying liquid or paste-like contents into the tubular film 1 extends in the vertical direction from above the bag-making guide 2 through the inside of the bag-making guide 2 to just above the squeeze roller 5. .

シゴキローラ５の下方には一対の横シール装置６が配置されている。一対の横シール装置６は間に筒状フィルム１の全幅を挟んで加熱することで、筒状フィルム１に横シール部１ｅを形成する。そのため、一対の横シール装置６は、筒状フィルム１を間において対向配置されており、不図示の駆動機構によって、互いに離間する方向および互いに当接する方向に移動可能である。横シール装置６の開閉動作は前述の縦シール装置３Ａ，３Ｂの開閉動作と同期させてある。横シール装置６は筒状フィルム１の全幅を超える長さを持ったブロックで構成されている。片方の横シール装置６を構成するブロックにヒータが内蔵されている。   A pair of lateral seal devices 6 are disposed below the squeeze roller 5. The pair of horizontal seal devices 6 forms the horizontal seal portion 1 e on the tubular film 1 by heating with the entire width of the tubular film 1 interposed therebetween. For this reason, the pair of horizontal sealing devices 6 are disposed so as to face each other with the tubular film 1 therebetween, and can be moved in a direction away from each other and a direction in contact with each other by a driving mechanism (not shown). The opening and closing operation of the horizontal sealing device 6 is synchronized with the opening and closing operations of the vertical sealing devices 3A and 3B described above. The horizontal sealing device 6 is constituted by a block having a length exceeding the entire width of the tubular film 1. A heater is built in a block constituting one side sealing device 6.

なお、シゴキローラ５と横シール装置６の間の領域において、不図示の成型板を筒状フィルム１のおもて面と裏面のそれぞれに対向配置させ、不図示の駆動機構によって、互いに離間する方向および互いに当接する方向に移動させる構成を追加してもよい。このような成型板を使って、筒状フィルム１の内容物が投入された部分の膨らみを規制することで、筒状フィルム１の内容物が投入された部分の形を整える。これによって、内容物の容量のばらつきも少なくなる。   In a region between the squeeze roller 5 and the lateral sealing device 6, a molding plate (not shown) is arranged opposite to the front surface and the back surface of the tubular film 1 and separated from each other by a driving mechanism (not shown). In addition, a configuration in which the components are moved in directions in which they abut each other may be added. By using such a molding plate, the bulge of the portion into which the contents of the tubular film 1 are introduced is regulated, thereby adjusting the shape of the portion into which the contents of the tubular film 1 are introduced. As a result, the variation in content volume is reduced.

また、横シール装置６の下方には、最終の包装品の縦方向長さ分を隔てて一対の切断装置８が配置されている。一対の切断装置８は筒状フィルム１の横シール部１ｅの全領域を挟み、フィルム搬送方向における横シール部１ｅの中間を通るように筒状フィルム１を切断する。そのため、一対の切断装置８は、筒状フィルム１を間において対向配置されており、不図示の駆動機構によって、互いに離間する方向および互いに当接する方向に移動可能である。切断装置８の開閉動作は前述の縦シール装置３Ａ，３Ｂの開閉動作と同期させてある。また、切断装置８は筒状フィルム１の全幅を超える長さを持ったブロックで構成されている。片方の切断装置８を構成するブロックに刃が仕込まれ、これに相対する切断装置８を構成するブロックにその刃の受け溝が形成されている。また、これらのブロックは、横シール装置６で加熱されてできた横シール部１ｅの熱を冷却してシール強度を上げる役割も持つ。   A pair of cutting devices 8 are arranged below the horizontal sealing device 6 with a length in the vertical direction of the final packaged product. The pair of cutting devices 8 sandwich the entire region of the horizontal seal portion 1e of the cylindrical film 1 and cut the cylindrical film 1 so as to pass through the middle of the horizontal seal portion 1e in the film transport direction. Therefore, the pair of cutting devices 8 are disposed so as to face each other with the tubular film 1 interposed therebetween, and can be moved in a direction away from each other and a direction in contact with each other by a driving mechanism (not shown). The opening / closing operation of the cutting device 8 is synchronized with the opening / closing operation of the vertical sealing devices 3A, 3B. Further, the cutting device 8 is constituted by a block having a length exceeding the entire width of the tubular film 1. A blade is loaded into a block that constitutes one of the cutting devices 8, and a receiving groove for the blade is formed in a block that constitutes the cutting device 8 that faces the block. Moreover, these blocks also have a role which raises seal strength by cooling the heat | fever of the horizontal seal | sticker part 1e produced by the horizontal seal | sticker apparatus 6. FIG.

また、切断装置８と横シール装置６の間には、筒状フィルム１の横方向の両側付近を挟みながら、不図示のモータで回転して筒状フィルム１を下方へ送る一対の第２の送りローラ１０Ａ，１０Ｂが配設されている。第２の送りローラ１０Ａ，１０Ｂによる筒状フィルムの搬送量は、第１の送りローラ４Ａ，４Ｂによる搬送量と同じにしている。   Further, between the cutting device 8 and the horizontal sealing device 6, a pair of second films are rotated by a motor (not shown) to feed the cylindrical film 1 downward while sandwiching the vicinity of both lateral sides of the cylindrical film 1. Feed rollers 10A and 10B are disposed. The transport amount of the cylindrical film by the second feed rollers 10A and 10B is the same as the transport amount by the first feed rollers 4A and 4B.

次に、上述した縦型充填包装機の動作を説明する。   Next, the operation of the above-described vertical filling and packaging machine will be described.

シート状のフィルム（例えば５０ミクロン厚のフィルム）が製袋ガイド２で折り曲げられ、該フィルムの横幅方向端部が互いに重ね合わさって偏平な筒状フィルム１が形成されるように、作業者は、シート状フィルムを包装機内にセットする。そして、第１の送りローラ４Ａ，４Ｂにより筒状フィルム１を下方へ送ることと、筒状フィルム１の折り曲げ部１ａと重ね合わせ部１ｂのそれぞれに対して縦シール装置３Ａ，３Ｂによって縦シール部１ｄを形成することを交互に繰り返す。しかる後、筒状フィルム１の下端が横シール装置６の間を通過し、第２の送りローラ１０Ａ，１０Ｂで挟持されて、切断装置８の位置に来たところで、フィルム送りを停止し、対向する横シール装置６どうしを接近させていく。これにより、筒状フィルム１の横方向に第１の横シール部１ｅが形成される。   An operator can fold a sheet-like film (for example, a film having a thickness of 50 microns) by the bag-making guide 2 so that the end portions in the width direction of the film overlap each other to form a flat tubular film 1. Set the sheet film in the packaging machine. Then, the cylindrical film 1 is fed downward by the first feed rollers 4A and 4B, and the vertical sealing portions 3A and 3B are respectively provided to the bent portion 1a and the overlapping portion 1b of the cylindrical film 1 by the vertical sealing devices 3A and 3B. The formation of 1d is repeated alternately. After that, when the lower end of the tubular film 1 passes between the horizontal sealing devices 6 and is sandwiched between the second feeding rollers 10A and 10B and reaches the position of the cutting device 8, the film feeding is stopped and opposed. The horizontal sealing device 6 to be moved closer to each other. Thereby, the 1st horizontal seal | sticker part 1e is formed in the horizontal direction of the cylindrical film 1. FIG.

そして、シゴキローラ５の間を開いた状態で、第１の横シール部１ｅを底部として筒状フィルム１内に投入パイプ７から内容物（液体、ペースト状物、固形物、又はそれらの組み合わせ）を投入する。この投入量は液体やペースト状物についてはシゴキローラ５の位置を越える程度とされる。それからシゴキローラ５の間を閉じ、シゴキローラ５によって、筒状フィルム１内の内容物をフィルム送り方向にて分割する。この状態で第１の送りローラ４Ａ，４Ｂ及び第２の送りローラ１０Ａ、１０Ｂを回転させて筒状フィルム１を下方に送ると、シゴキローラ５間で筒状フィルム１が偏平に押し潰されつつ、筒状フィルム１内に内容物が存在しない空部分が形成される。   Then, in a state where the gap between the squeeze rollers 5 is opened, the contents (liquid, paste-like material, solid material, or a combination thereof) are supplied from the input pipe 7 into the tubular film 1 with the first horizontal seal portion 1e as the bottom. throw into. This input amount is set so as to exceed the position of the squeeze roller 5 for liquids and paste-like materials. Then, the gap between the squeeze rollers 5 is closed, and the squeeze rollers 5 divide the contents in the tubular film 1 in the film feeding direction. In this state, when the first feed rollers 4A and 4B and the second feed rollers 10A and 10B are rotated to send the tubular film 1 downward, the tubular film 1 is flattened between the squeeze rollers 5, An empty portion in which no content exists is formed in the tubular film 1.

この空部分の所定の位置が横シール装置６の所まで送られたら、筒状フィルム１の送りを停止し、対向する横シール装置６どうしを接近させていく。これにより、第２の横シール部１ｅが形成されて、筒状フィルム１の上側の開口が密閉される。   When the predetermined position of the empty portion is sent to the position of the horizontal sealing device 6, the feeding of the tubular film 1 is stopped and the opposing horizontal sealing devices 6 are brought closer to each other. Thereby, the 2nd horizontal seal | sticker part 1e is formed and the opening of the upper side of the cylindrical film 1 is sealed.

その後、再び第１の送りローラ４Ａ，４Ｂ及び第２の送りローラ１０Ａ、１０Ｂを回転させて筒状フィルム１を下方に送り、第２の横シール部１ｅの位置が切断装置８の所まで来たら、筒状フィルム１の送りを停止し、対向する切断装置８どうしを接近させていく。これにより、第２の横シール部１ｅの送り方向幅の中間で筒状フィルム１が切断され、内容物が入った４方シール包装品Ｗが得られる。以上の一連の動作を繰り返すことで、次々と４方シール包装品Ｗを製造することができる。   Thereafter, the first feed rollers 4A and 4B and the second feed rollers 10A and 10B are rotated again to feed the cylindrical film 1 downward, and the position of the second horizontal seal portion 1e reaches the cutting device 8. Then, the feeding of the tubular film 1 is stopped, and the opposing cutting devices 8 are brought closer to each other. Thereby, the cylindrical film 1 is cut in the middle of the feed direction width of the second horizontal seal portion 1e, and the four-side sealed package W containing the contents is obtained. By repeating the above series of operations, the four-side sealed package product W can be manufactured one after another.

以上説明したように、本発明では、従来技術（図３参照）の送りローラ４のようにシゴキローラ５の上方に第１の送りローラ４Ａ，４Ｂが配置されているのみならず、シゴキローラ５の下方、好ましくは横シール装置６と切断装置８の間にも第２の送りローラ１０Ａ，１０Ｂが配置されている。   As described above, in the present invention, not only the first feed rollers 4A and 4B are disposed above the squeeze roller 5 like the feed roller 4 of the prior art (see FIG. 3), but also below the squeeze roller 5. The second feed rollers 10 </ b> A and 10 </ b> B are also preferably disposed between the lateral sealing device 6 and the cutting device 8.

このような構成では、内容物投入直前の筒状フィルム１が、上方の送りローラ４Ａ，４Ｂと下方の送りローラ１０Ａ，１０Ｂの双方で保持された状態になる（図２の状態）。つまり、従来技術（図３参照）で説明したようにシゴキローラ５の上方の送りローラ４だけで吊り下げられている状態ではない。   In such a configuration, the cylindrical film 1 immediately before the contents are charged is held by both the upper feed rollers 4A and 4B and the lower feed rollers 10A and 10B (the state shown in FIG. 2). In other words, as described in the prior art (see FIG. 3), it is not in a state of being suspended only by the feed roller 4 above the squeeze roller 5.

このようにシゴキローラ５の位置を間にして筒状フィルム１の上側と下側の部分を保持しているので、この状態の筒状フィルム１に内容物を投入したとき、縦シール部１ｄ及び横シール部１ｅが折れ曲がらない。結果、筒状フィルム１の両面に線状の大きなたるみ（波を打った部分）が発生し難い。このため、シゴキローラ５の間に筒状フィルム１を挟み込んだときに皺が出来ず、したがって、横シール部１ｅを形成した際に横シール部に皺が入ることもなく、製造された４方シール包装品は高い気密性能を持つものとなる。このような本発明の送りローラ配置を持つ縦型充填包装機は、フィルム厚が薄くなるほど皺の防止効果が高かった。   Thus, since the upper and lower portions of the cylindrical film 1 are held with the position of the squeeze roller 5 in between, when the contents are put into the cylindrical film 1 in this state, the vertical seal portion 1d and the horizontal seal portion 1 The seal part 1e is not bent. As a result, it is difficult for large linear slacks (waved portions) to occur on both surfaces of the tubular film 1. For this reason, wrinkles are not formed when the cylindrical film 1 is sandwiched between the squeeze rollers 5, and therefore, when the horizontal seal portion 1e is formed, no wrinkles enter the horizontal seal portion, and the manufactured four-side seal The packaged product has high airtightness. The vertical filling and packaging machine having such a feed roller arrangement of the present invention was more effective in preventing wrinkles as the film thickness was reduced.

なお、本発明では、第２の送りローラ１０Ａ，１０Ｂを回転駆動するモータの回転トルクが、第１の送りローラ４Ａ，４Ｂ用モータのそれよりも低く設定されていることが好ましい。この理由は次のとおりである。上述した縦型充填包装機は、包装機の上方にある第１の送りローラ４Ａ，４Ｂと下方にある第２の送りローラ１０Ａ，１０Ｂの双方を回転して筒状フィルム１を搬送するものである。このため、特に、一対の第２の送りローラ１０Ａ，１０Ｂは、内容物の投入によって膨らんでいる状態の筒状フィルム１を挟み込むことになるため、この挟み込みの際に筒状フィルム１を下側へ引っ張る力が生じる。ここで、第２の送りローラ１０Ａ，１０Ｂの回転トルクが第１の送りローラ４Ａ，４Ｂの回転トルクより大きいと、一対の第１の送りローラ４Ａ，４Ｂに挟まれたフィルム部分が滑り、フィルムの送り量が変わってしまう虞がある。そのため、第２の送りローラ１０Ａ，１０Ｂの方の回転トルクを低くする。   In the present invention, it is preferable that the rotational torque of the motor that rotationally drives the second feed rollers 10A and 10B is set lower than that of the motors for the first feed rollers 4A and 4B. The reason for this is as follows. The vertical filling and packaging machine described above conveys the tubular film 1 by rotating both the first feed rollers 4A and 4B above the packaging machine and the second feed rollers 10A and 10B below. is there. For this reason, in particular, the pair of second feed rollers 10A and 10B sandwich the tubular film 1 in a state where it is swollen by the introduction of the contents. Therefore, the tubular film 1 is placed on the lower side during the sandwiching. A pulling force is generated. Here, when the rotational torque of the second feed rollers 10A and 10B is larger than the rotational torque of the first feed rollers 4A and 4B, the film portion sandwiched between the pair of first feed rollers 4A and 4B slips, and the film There is a risk that the amount of feed will change. Therefore, the rotational torque of the second feed rollers 10A and 10B is lowered.

さらに、第２の送りローラ１０Ａ，１０Ｂは切断装置８に出来るだけ近くに配置されていることが好ましい。このため、第２の送りローラ１０Ａ，１０Ｂの外径を出来るだけ小さくすることが好ましい。この理由は次のとおりである。切断装置８の所には、フィルム袋の底部となる横シール部１ｅが位置するが、この横シール部１ｅの直ぐ上の筒状フィルム１の両側端部には、筒状フィルム１が内容物で膨らんでいることで屈曲による皺が起きやすい。そのため、第２の送りローラ１０Ａ，１０Ｂの位置が切断装置８から離れていると、屈曲による皺が伸ばされないまま出来る。この状態で、切断装置８によるフィルム切断が実施されると、切断位置が正常な位置からずれる虞がある。そのため、第２の送りローラ１０Ａ，１０Ｂを切断装置８の極力近くに配置している。   Furthermore, the second feed rollers 10A and 10B are preferably arranged as close as possible to the cutting device 8. For this reason, it is preferable to make the outer diameters of the second feed rollers 10A and 10B as small as possible. The reason for this is as follows. At the position of the cutting device 8, a horizontal seal portion 1e serving as a bottom portion of the film bag is located. At the both side ends of the cylindrical film 1 immediately above the horizontal seal portion 1e, the cylindrical film 1 is the contents. It is easy to cause wrinkles due to bending. For this reason, if the positions of the second feed rollers 10A and 10B are separated from the cutting device 8, wrinkles due to bending can be left unstretched. In this state, when the film is cut by the cutting device 8, the cutting position may be shifted from the normal position. Therefore, the second feed rollers 10 </ b> A and 10 </ b> B are arranged as close as possible to the cutting device 8.

また、複数対の第１の送りローラ４Ａ，４Ｂの配置に関しては、複数対のうちの一対の送りローラがシゴキローラ５の近傍に配置されていることが好ましい。これにより、筒状フィルム１のたるみが出来るだけ少ない状態でシゴキローラ５間に筒状フィルム１を挟ませることができ、皺の発生を一層防ぐことができる。   Further, regarding the arrangement of the plurality of pairs of first feed rollers 4 </ b> A and 4 </ b> B, the pair of feed rollers of the plurality of pairs is preferably arranged in the vicinity of the squeeze roller 5. Thereby, the cylindrical film 1 can be pinched | interposed between the squeeze rollers 5 in a state where the slack of the cylindrical film 1 is as small as possible, and the generation of wrinkles can be further prevented.

また、横シール装置６が、特許文献２（特開２００６−３４１８５４の図１４）に示すような熱シール／切断機構のカッタ保持バーの部位をカッタ無しのバーに換えたものであっても良い。包装品のフィルム材にアルミニウムを使っている場合、横シール部の形成時にアルミニウムフィルムを加熱し過ぎると発泡を引き起こしシール性能が低下してしまう。このため、この構成によれば、横シール部の冷却が瞬時にでき、シール性能が高まる。   Further, the lateral sealing device 6 may be one in which the portion of the cutter holding bar of the heat sealing / cutting mechanism as shown in Patent Document 2 (FIG. 14 of JP-A-2006-341854) is replaced with a bar without a cutter. . When aluminum is used for the film material of the packaged product, if the aluminum film is heated too much at the time of forming the lateral seal portion, foaming is caused and the sealing performance is deteriorated. For this reason, according to this structure, the horizontal seal part can be instantaneously cooled, and the sealing performance is enhanced.

また、上述した縦型充填包装機において、縦シール装置３Ａ，３Ｂの間にこれらと同じ縦シール装置を横方向に複数配設することにより、内容物が入った複数の４方シール包装品を横方向に並べた状態で同時に製造することができる。   In the above-described vertical filling and packaging machine, a plurality of four-way sealed packages containing contents can be obtained by disposing a plurality of the same vertical sealing devices in the horizontal direction between the vertical sealing devices 3A and 3B. They can be manufactured simultaneously in the state of being arranged in the horizontal direction.

１ 筒状フィルム
１ａ 折り曲げ部
１ｂ 重ね合わせ部
１ｄ 縦シール部
１ｅ 横シール部
２ 製袋ガイド
３Ａ、３Ｂ 縦シール装置
４Ａ、４Ｂ 第１の送りローラ
５ シゴキローラ
６ 横シール装置
７ 投入パイプ
８ 切断装置
９Ａ、９Ｂ ガイドローラ
１０Ａ、１０Ｂ 第２の送りローラ DESCRIPTION OF SYMBOLS 1 Cylindrical film 1a Bending part 1b Overlapping part 1d Vertical seal part 1e Horizontal seal part 2 Bag making guide 3A, 3B Vertical seal apparatus 4A, 4B 1st feed roller 5 Shigo roller 6 Horizontal seal apparatus 7 Input pipe 8 Cutting apparatus 9A 9B Guide roller 10A, 10B Second feed roller

Claims (4)

搬送されているシート状のフィルムをその幅中央で折り曲げて該フィルムの幅方向端部を互いに重ね合わせることで筒状フィルムを形成する製袋ガイドと、
前記幅中央での折り曲げ部と前記幅方向端部の重ね合わせ部に対応する前記筒状フィルムの横方向両側の側縁にそれぞれ熱シールを行って縦シール部を形成する縦シール装置と、
前記筒状フィルムの横方向両側の側縁付近を挟み込みつつ回転駆動されて、前記縦シール部が形成された前記筒状フィルムを下方へ送る複数対の送りローラと、
前記筒状フィルムの中に内容物を投入する投入パイプと、
前記投入パイプの前記内容物の出口の下方にあって前記縦シール装置の下方に配設され、前記内容物が投入された前記筒状フィルムを挟み込みつつ該筒状フィルムの下方への送りに伴って回転することで前記筒状フィルムに前記内容物が入っていない空部を形成する一対のシゴキローラと、
前記一対のシゴキローラの下方に配設され、前記筒状フィルムの前記空部の横方向全幅に亘って熱シールを行って横シール部を形成する横シール装置と、
前記横シール装置の下方に配設され、前記筒状フィルムを前記横シール部の位置で切断する切断装置と、を備えており、
前記複数対の送りローラは第１の送りローラの対と第２の送りローラの対を含み、
前記第１の送りローラの対は前記シゴキローラの上方に配置され、前記第２の送りローラの対は前記シゴキローラの下方で、かつ前記横シール装置と前記切断装置の間に配置されていることを特徴とする、縦型充填包装機。 A bag-making guide that forms a tubular film by folding the sheet-like film being conveyed at the width center and overlapping the widthwise ends of the film with each other;
A vertical sealing device that forms a vertical seal portion by performing heat sealing on each side edge of the tubular film on both sides in the horizontal direction corresponding to the folded portion at the width center and the overlapping portion of the width direction end portion;
A plurality of pairs of feed rollers that are driven to rotate while sandwiching the vicinity of the side edges on both sides of the tubular film in the lateral direction, and feed the tubular film in which the longitudinal seal portion is formed downward,
A charging pipe for charging contents into the tubular film;
Along with the feeding of the tubular film below the outlet of the contents of the feeding pipe and below the vertical sealing device, while sandwiching the tubular film into which the contents have been placed. A pair of squeeze rollers that form an empty space in which the contents are not contained in the tubular film by rotating
A horizontal sealing device that is disposed below the pair of squeeze rollers and forms a horizontal sealing portion by performing heat sealing over the entire horizontal width of the hollow portion of the tubular film;
A cutting device disposed below the horizontal sealing device and cutting the cylindrical film at the position of the horizontal sealing portion,
The plurality of pairs of feed rollers include a first feed roller pair and a second feed roller pair;
The first feed roller pair is disposed above the squeeze roller, and the second feed roller pair is disposed below the squeeze roller and between the lateral seal device and the cutting device. A vertical filling and packaging machine. 前記第２の送りローラの回転トルクが前記第１の送りローラの回転トルクよりも低く設定されていることを特徴とする請求項１に記載の縦型充填包装機。   2. The vertical filling and packaging machine according to claim 1, wherein the rotational torque of the second feed roller is set lower than the rotational torque of the first feed roller. 前記第２の送りローラは前記切断装置の近傍に配置されていることを特徴とする請求項１または２に記載の縦型充填包装機。   The vertical filling and packaging machine according to claim 1 or 2, wherein the second feed roller is disposed in the vicinity of the cutting device. 前記第１の送りローラの対が複数設けられており、少なくとも一対の前記第１の送りローラは前記シゴキローラの近傍に配置されていることを特徴とする請求項１から３のいずれか１項に記載の縦型充填包装機。   The plurality of pairs of the first feed rollers are provided, and at least one pair of the first feed rollers is disposed in the vicinity of the squeeze roller. The vertical filling and packaging machine described.
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Publication number Priority date Publication date Assignee Title
JP2021041963A (en) * 2019-09-10 2021-03-18 株式会社悠心 Vertical type filling and packing machine and filling and packing method of to-be-packed object
US12012249B2 (en) 2017-06-08 2024-06-18 Orihiro Engineering Co., Ltd. Vertical bag-making/filling/packaging machine, manufacturing method of film packaging bag with content

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JP2008011785A (en) * 2006-07-06 2008-01-24 Hagoromo Foods Kk Method for producing packaged food

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US12012249B2 (en) 2017-06-08 2024-06-18 Orihiro Engineering Co., Ltd. Vertical bag-making/filling/packaging machine, manufacturing method of film packaging bag with content
JP2021041963A (en) * 2019-09-10 2021-03-18 株式会社悠心 Vertical type filling and packing machine and filling and packing method of to-be-packed object

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