JP2014189303A - Lateral seal device for bag-making packing machine and packaging bag made by the same - Google Patents

Lateral seal device for bag-making packing machine and packaging bag made by the same Download PDF

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JP2014189303A
JP2014189303A JP2013066550A JP2013066550A JP2014189303A JP 2014189303 A JP2014189303 A JP 2014189303A JP 2013066550 A JP2013066550 A JP 2013066550A JP 2013066550 A JP2013066550 A JP 2013066550A JP 2014189303 A JP2014189303 A JP 2014189303A
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film
cutting knife
packaging
bag
deaeration
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Takashi Hibino
高志 日比野
Norikatsu Ishihara
教克 石原
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Fuji Machinery Co Ltd
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Fuji Machinery Co Ltd
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Abstract

PROBLEM TO BE SOLVED: To provide a lateral seal device for a bag-making packing machine capable of forming vent holes excellent in deaeration capability and a packaging bag made by it.SOLUTION: A lateral seal device 20 for a bag-making packing machine is for obtaining a packaging bag having vent holes for deaeration and sealing bodies 30 and 40 having holding surfaces 32 and 42 parted by notch parts 32a and 42a, respectively, and a cutting knife 60 for perforating vent holes for deaeration, and the sealing bodies 30 and 40 form a fused part with the holding surfaces 32 and 42 by holding a packaging film with the holding surfaces 32 and 42 and a ventilation path communicating the inside with the outside of a packaging bag at positions opposite to the notch parts 32a and 42a. When the sealing bodies 30 and 40 hold a packaging film, the ventilation path or an extention of the ventilation path is perforated with the cutting knife 60.

Description

本発明は、筒状に成形したフィルムをその搬送方向に対し交差する幅方向へ横シールを施す製袋充填機の横シール装置に関するものである。   The present invention relates to a lateral sealing device of a bag making and filling machine that performs lateral sealing on a film formed into a cylindrical shape in the width direction intersecting with the conveying direction.

製袋充填機は、供給源から引き出されて筒状に成形されたフィルム中に、所定間隔毎に物品を供給し、筒状フィルムの長手方向重合部に縦シールを施し、横シール装置により筒状フィルムの物品を挟む前後にそれぞれ横シールと切断を施して得る。ところで、包装物が嵩張らないように包装袋に通気路を設けて袋内の空気を排出するようにしたものがある(例えば特許文献1)。これは、一対のシール体のそれぞれの挟持面に切欠き部を設けることで切欠き部を除く部分が加熱された挟持面で挟持され、切欠き部により加熱溶着しなかった部分が包装フィルムの通気路として機能するようにしている。   The bag making and filling machine supplies articles at predetermined intervals into a film drawn out from a supply source and formed into a cylindrical shape, applies a vertical seal to a longitudinal polymerization portion of the cylindrical film, and uses a horizontal sealing device to It is obtained by performing horizontal sealing and cutting before and after sandwiching the article of the film-like film. By the way, there exist some which provided the ventilation path in the packaging bag and discharged | emitted the air in a bag so that a package may not become bulky (for example, patent document 1). This is because a portion excluding the notch is sandwiched by the heated clamping surface by providing a notch on each clamping surface of the pair of seal bodies, and the portion that has not been heat-welded by the notch is the portion of the packaging film. It is designed to function as an air passage.

特開平8−133242号公報JP-A-8-133242

しかしながら、包装フィルムにこのような通気路を設けるには、例えば、包装袋が開封されて消費されるまでの流通過程で何かの要因で熱溶着した部分が剥がれてしまうといったことがないように、シール強度を考慮してシール体の挟持面の幅を設定する必要があり、また、得られた包装袋の内部にゴミなどの異物が侵入しないようにする必要があるため、通気路の幅を大きく設定することができなかった。その結果、包装フィルムを各シーラで挟持して熱溶着すると、通気路を形成する未シール部分のフィルム内面同士が密着してしまい、必ずしも良好な脱気が行えるとは限らなかった。   However, in order to provide such a ventilation path in the packaging film, for example, a part that has been heat-welded due to some factor in the distribution process until the packaging bag is opened and consumed is not peeled off. It is necessary to set the width of the clamping surface of the sealing body in consideration of the sealing strength, and to prevent foreign matters such as dust from entering the inside of the obtained packaging bag. Could not be set large. As a result, when the packaging film was sandwiched between the sealers and thermally welded, the inner surfaces of the unsealed portions forming the air passages were in close contact with each other, and good deaeration could not always be performed.

本発明は、脱気能力の優れた通気孔を形成できる製袋充填機の横シール装置、及び該装置によって得られる包装袋を提供することを目的とする。   An object of the present invention is to provide a lateral sealing device of a bag making and filling machine capable of forming a vent hole with excellent deaeration capability, and a packaging bag obtained by the device.

上記課題を解決するために、製袋充填機の横シール装置とその装置によって得られる包装袋は次の手段をとる。先ず請求項1に係る発明は、脱気用通気孔(78)を有する包装袋(70)を得るための製袋充填機の横シール装置(20)であって、切欠き部(32a、42a)で分断される挟持面(32、42)を有するシール体(30、40)と、前記脱気用通気孔(78)を穿孔する切込ナイフ(60)と、を備え、前記シール体(30、40)がその挟持面(32、42)で包装フィルムを挟持することにより、前記挟持面(32、42)で溶着部を形成するとともに切欠き部(32a、42a)が対向する部位に包装袋(70)内外を連通する通気路(76)を形成し、前記シール体(30、40)が包装フィルムを挟持する際に、前記切込ナイフ(60)で前記包装フィルムの通気路(76)または通気路(76)の延長上を穿孔することを特徴とする。   In order to solve the above problems, the lateral sealing device of the bag making and filling machine and the packaging bag obtained by the device take the following means. First, the invention according to claim 1 is a lateral sealing device (20) of a bag making and filling machine for obtaining a packaging bag (70) having a vent hole (78) for deaeration, wherein the notch (32a, 42a). ) And a cutting knife (60) for drilling the deaeration vent hole (78), the sealing body (30, 40) having a clamping surface (32, 42) divided by 30 and 40) sandwich the packaging film with the sandwiching surfaces (32 and 42), thereby forming a welded portion on the sandwiching surface (32 and 42) and a portion where the notches (32a and 42a) face each other. An air passage (76) communicating between the inside and the outside of the packaging bag (70) is formed, and when the sealing body (30, 40) sandwiches the packaging film, the air passage ( 76) or drilling on the extension of the air passage (76) And butterflies.

この請求項1に係る発明によれば、挟持面(32、42)を分断する切欠き部(32a、42a)を有するシール体(30、40)で包装フィルムを挟持して、包装フィルムのシール領域に未シール部、即ち通気路(76)を形成すると共に、包装フィルムをシール体(30、40)で挟持する際に、切込ナイフ(60)で通気路(76)または通気路(76)の延長上に脱気用通気孔(78)を穿孔することにより、脱気のための十分な開口面積を確保でき、且つ、位置ずれがなく確実に穿孔できるので、脱気効率が良く見た目の綺麗な通気孔を有する包装袋(70)を得ることができる。   According to the first aspect of the present invention, the packaging film is clamped by the sealing body (30, 40) having the notches (32a, 42a) for dividing the clamping surface (32, 42), and the packaging film is sealed. An unsealed portion, that is, an air passage (76) is formed in the region, and when the packaging film is sandwiched between the sealing bodies (30, 40), the air passage (76) or the air passage (76) is formed by the cutting knife (60). The deaeration vent hole (78) is drilled on the extension of), so that a sufficient opening area for deaeration can be secured, and the drilling can be surely performed without misalignment. A packaging bag (70) having beautiful air holes can be obtained.

次に、請求項1に従属する請求項2に係る発明は、前記切込ナイフ(60)は、前記シール体(30、40)の駆動手段とは別の駆動手段(52)により動作し、前記シール体(30、40)が前記包装フィルムを挟持するタイミングに合せて前記包装フィルムを穿孔することを特徴とする。   Next, in the invention according to claim 2 that is dependent on claim 1, the cutting knife (60) is operated by a driving means (52) different from the driving means of the seal body (30, 40), The said sealing body (30, 40) perforates the said packaging film according to the timing which clamps the said packaging film, It is characterized by the above-mentioned.

次に、請求項1または請求項2に従属する請求項3に係る発明は、切込ナイフ(60)を挟持面(32、42)から突出作動して脱気用の通気孔(78)を穿孔するよう構成したことを特徴とする。   Next, in the invention according to claim 3 that depends on claim 1 or claim 2, the cutting knife (60) is operated to project from the clamping surface (32, 42) and the vent hole (78) for deaeration is provided. It is characterized by being configured to perforate.

この請求項2及び請求項3に係る発明によれば、切込ナイフ(60)の駆動手段(52)と、シール体(30、40)の駆動手段とは別の駆動手段(52)を有する。これにより、シール体(30、40)で包装フィルムを挟持する動作に対して、切込ナイフ(60)で脱気用通気孔(78)を穿孔する動作のタイミングや動作速度などについてフィルムの材質その他のフィルムの性状や包装能力の変更など種々の包装条件に対応して設定することができる。   According to the second and third aspects of the invention, the driving means (52) of the cutting knife (60) and the driving means (52) different from the driving means of the seal body (30, 40) are provided. . Thereby, with respect to the operation of sandwiching the packaging film with the seal body (30, 40), the timing of the operation for drilling the vent hole (78) with the cutting knife (60), the operation speed, etc., the material of the film It can be set corresponding to various packaging conditions such as changes in other film properties and packaging capabilities.

次に、請求項1〜3に従属する請求項4に係る発明は、前記脱気用通気孔(78)は、一部(78a)が繋がった略円形のスリットであることを特徴とする。   Next, the invention according to claim 4 that depends on claims 1 to 3 is characterized in that the vent hole for deaeration (78) is a substantially circular slit to which a part (78a) is connected.

この請求項4に係る発明によれば、脱気用通気孔(78)は、一部(78a)が繋がった略円形のスリットであるため、切屑が生じない。よって切屑の回収をする必要がなく、回収手段を設ける必要もない。また、切屑が誤って異物として包装袋内へ混入してしまうこともない。更に、一部(78a)が繋がった略円形のスリットは、包装袋(70)内の空気を排出するときは外側にめくれ、それ以外のときは孔を塞ぐように働くので、包装袋(70)内への異物の進入を抑制できる。   According to the fourth aspect of the present invention, the deaeration vent hole (78) is a substantially circular slit with a part (78a) connected thereto, so that no chips are generated. Therefore, it is not necessary to collect chips, and there is no need to provide a collection means. Further, the chips are not mistakenly mixed into the packaging bag as foreign matters. Further, the substantially circular slit to which a part (78a) is connected works so as to turn outward when the air in the packaging bag (70) is discharged, and to close the hole otherwise, so that the packaging bag (70 ) The entry of foreign matter into the inside can be suppressed.

次に、請求項1〜4に従属する請求項5に係る発明は、前記包装フィルムを一包装長毎に、フィルムの搬送方向と交差する方向に切断するフィルム分断ナイフ(50)を更に備え、該フィルム分断ナイフ(50)と前記切込ナイフ(60)とは、一体的に動作可能な構成としたことを特徴とする。   Next, the invention according to claim 5 subordinate to claims 1 to 4 further includes a film cutting knife (50) for cutting the packaging film in a direction intersecting the film conveyance direction for each packaging length. The film cutting knife (50) and the cutting knife (60) are configured to operate integrally.

この請求項5に係る発明によれば、フィルム分断ナイフ(50)と切込ナイフ(60)とを一体的に動作可能な構成とすることで、1つの駆動手段でシンプルな構造とすることができる。   According to the fifth aspect of the present invention, the film cutting knife (50) and the cutting knife (60) are configured to be able to operate integrally, so that a simple structure can be achieved with a single driving means. it can.

次に、請求項1〜5に従属する請求項6に係る発明は、物品(P)の上面を押さえて筒状に形成された包装フィルム内の空気を排出する押圧手段(400)を更に備えることを特徴とする。   Next, the invention according to claim 6 that is dependent on claims 1 to 5 further includes pressing means (400) that presses the upper surface of the article (P) and discharges the air in the cylindrically formed packaging film. It is characterized by that.

この請求項6に係る発明によれば、押圧手段(400)を更に備えることで物品(P)を包装する際に内部の脱気も併せて行うことができるため、別途脱気作業を施す必要がなくなる。   According to the sixth aspect of the present invention, since the depressurization means (400) is further provided and the article (P) can be packaged, it is possible to perform deaeration inside, so it is necessary to perform a deaeration operation separately. Disappears.

次に、請求項1から請求項6のいずれかに従属する請求項7は、請求項1から請求項6のいずれかの製袋充填機によって得られる包装袋(70)であることを特徴とする。   Next, Claim 7 subordinate to any one of Claims 1 to 6 is a packaging bag (70) obtained by the bag making and filling machine according to any one of Claims 1 to 6. To do.

この請求項7に係る発明によれば、脱気能力の優れた通気孔を形成できる製袋充填機の横シール装置(20)によって得られる包装袋(70)を提供することができる   According to the seventh aspect of the present invention, it is possible to provide the packaging bag (70) obtained by the lateral sealing device (20) of the bag making and filling machine capable of forming a vent hole with excellent deaeration capability.

本発明は上記各発明の手段をとることにより、脱気能力の優れた通気孔を形成できる製袋充填機の横シール装置、及び該装置によって得られる包装袋を提供することができる。   The present invention can provide a lateral sealing device of a bag making and filling machine capable of forming a vent hole with excellent deaeration ability and a packaging bag obtained by the device by taking the measures of the above inventions.

(a)は、実施形態に係る横形製袋充填機における横シール装置の概略正面図、(b)は、横シール装置の上シール体の挟持面を示した図である。(A) is a schematic front view of the horizontal sealing device in the horizontal bag making and filling machine according to the embodiment, and (b) is a diagram showing a clamping surface of the upper seal body of the horizontal sealing device. 図1の概略側断面図である。It is a schematic sectional side view of FIG. 実施形態に係る横形製袋充填機によって得られる包装袋を示した概略上面図である。It is the schematic top view which showed the packaging bag obtained by the horizontal bag-making filling machine which concerns on embodiment. 横シール装置の変更例1を示した概略側断面図である。It is the schematic sectional side view which showed the modification 1 of the horizontal sealing apparatus. 実施形態に係る横形製袋充填機によって得られる包装袋の変更例1を示した概略上面図である。It is the schematic top view which showed the modification 1 of the packaging bag obtained by the horizontal bag making and filling machine which concerns on embodiment. 実施形態に係る横形製袋充填機によって得られる包装袋の変更例2を示した概略上面図である。It is the schematic top view which showed the modification 2 of the packaging bag obtained by the horizontal bag making and filling machine which concerns on embodiment. 押圧手段を設けた場合の概略側断面図である。It is a schematic sectional side view at the time of providing a pressing means.

以下に、実施形態について図1〜3を用いて説明する。本実施形態における製袋充填機は、供給源から引き出されて筒状に成形されたフィルム中に所定間隔毎に物品Pを供給し、筒状フィルムの長手方向重合部に縦シールを施し、横シール装置20により筒状フィルムの物品Pを挟む前後にそれぞれ横シールと切断を施して包装物を得る。この製袋充填機は、横シール装置20に特徴を有するものであり、縦形製袋充填機でも横形製袋充填機でもどちらにでも適用することができる。また、横シール装置20は、駆動手段であるサーボモータなどの駆動力を、適宜駆動伝達機構で上シール体30と下シール体40とからなる一対のシール体を相互に近接離間移動可能に構成され、両シール体で筒状フィルムを挟持してフィルムの送り方向に向けてフィルムと同速で移動することで筒状フィルムの搬送方向と交差する方向に横シールを施すように構成されている。   Hereinafter, embodiments will be described with reference to FIGS. The bag making and filling machine in the present embodiment supplies articles P at predetermined intervals into a film drawn out from a supply source and formed into a cylindrical shape, applies a vertical seal to the longitudinal polymerization portion of the cylindrical film, Before and after sandwiching the tubular film article P by the sealing device 20, lateral sealing and cutting are performed to obtain a package. This bag making and filling machine is characterized by the horizontal sealing device 20, and can be applied to either a vertical bag making or filling machine. Further, the lateral seal device 20 is configured such that a pair of seal bodies composed of the upper seal body 30 and the lower seal body 40 can be moved close to and away from each other by an appropriate drive transmission mechanism with a driving force of a servo motor or the like as a drive means. The cylindrical film is sandwiched between the two sealing bodies and moved in the film feed direction at the same speed as the film so that a transverse seal is applied in a direction crossing the conveyance direction of the cylindrical film. .

本実施形態の製袋充填機の横シール装置20は、図1、2に示すように包装フィルムを熱溶着するためのヒーター35を内蔵した上シール体30と、上支持部材22にスライド部24によって支持されたカッター取付け部26と、カッター取付け部26に取付けられたフィルム分断ナイフ50と、上支持部材22に固定され、カッター取付け部26及びフィルム分断ナイフ50を上下に往復移動させるサーボモータやエアシリンダからなる駆動手段52と、カッター取付け部26にブラケット54によって取付けられた切込ナイフ60と、包装フィルムを熱溶着するためのヒーター45を内蔵した下シール体40とで構成される。
切込ナイフ60は、フィルム分断ナイフ50を挟んでそれぞれ2つずつ配設される。この切込ナイフ60とフィルム分断ナイフ50は上方のカッター取付部26に一体的に取付けられる。カッター取付部26の上方にある駆動手段52は、ピストンロッド28を上下方向に進退させて、ピストンロッド28に支持されたカッター取付部26を上下移動させることにより、切込ナイフ60とフィルム分断ナイフ50を一体的に作動させる。
As shown in FIGS. 1 and 2, the lateral sealing device 20 of the bag making and filling machine according to the present embodiment includes an upper seal body 30 including a heater 35 for thermally welding a packaging film, and a slide portion 24 on the upper support member 22. A cutter mounting portion 26 supported by the cutter mounting portion 26, a film cutting knife 50 mounted on the cutter mounting portion 26, a servo motor fixed to the upper support member 22 and reciprocating up and down the cutter mounting portion 26 and the film cutting knife 50, It is comprised by the drive means 52 which consists of an air cylinder, the cutting knife 60 attached to the cutter attachment part 26 with the bracket 54, and the lower seal body 40 incorporating the heater 45 for heat-welding a packaging film.
Two cutting knives 60 are provided with two film cutting knives 50 in between. The cutting knife 60 and the film cutting knife 50 are integrally attached to the upper cutter attaching portion 26. The driving means 52 above the cutter mounting portion 26 moves the piston rod 28 up and down in the vertical direction and moves the cutter mounting portion 26 supported by the piston rod 28 up and down to thereby move the cutting knife 60 and the film cutting knife. 50 is operated integrally.

上シール体30及び下シール体40は、図1、2に示すようにそれぞれの挟持面32、42に、シール体30、40の長手方向と交差する方向にそれぞれ複数の切欠き部32a、42aが設けられ、相互に近接し筒状フィルムを挟持面32、42で挟持するときに、互いの切欠き部32a、42aの位置が一致するように対向配置される。上シール体30には、フィルム分断ナイフ50の往復移動を許容し得る貫通孔36が設けられており、フィルム分断ナイフ50は、その上部に位置する駆動手段52により、往復移動される。即ち、上下一対のシール体30、40が筒状フィルムに横シールを施す際に挟持面32より外方(筒状フィルムを挟持したときの挟持面32、42の上下方向位置より下方)に突出して筒状フィルムを分断する。このようにフィルム分断ナイフ50の駆動手段52は、シール体30、40の駆動手段とは独立して設けられている。   As shown in FIGS. 1 and 2, the upper seal body 30 and the lower seal body 40 have a plurality of notches 32 a and 42 a on the holding surfaces 32 and 42, respectively, in a direction intersecting with the longitudinal direction of the seal bodies 30 and 40. Are arranged so as to face each other so that the positions of the notches 32a and 42a coincide with each other when the cylindrical film is sandwiched between the sandwiching surfaces 32 and 42. The upper seal body 30 is provided with a through-hole 36 that can allow the film dividing knife 50 to reciprocate. The film dividing knife 50 is reciprocated by the driving means 52 located on the upper part. That is, the pair of upper and lower seal bodies 30 and 40 protrude outward from the sandwiching surface 32 (below the vertical position of the sandwiching surfaces 32 and 42 when the tubular film is sandwiched) when performing horizontal sealing on the tubular film. Cut the tubular film. Thus, the drive means 52 of the film dividing knife 50 is provided independently of the drive means of the seal bodies 30 and 40.

更に、上シール体30には、図2に示すように切込ナイフ60の進退移動を許容する貫通孔38が別途設けられており、この貫通孔38の一端38aは切欠き部32aに位置する。切込ナイフ60は、フィルム分断ナイフ50の駆動手段52により、フィルム分断ナイフ50と一体的に動作して、上下のシール体30、40が筒状フィルムを挟持するタイミングに合わせて、好ましくは挟持後に作動するようになっている。切込ナイフ60は、丸棒状に形成され、先端62が斜めにカットされた切刃を備え、該切刃をフィルムに突き入れることで図3に示すように一部が繋がった略円形のスリット(脱気用通気孔78)を形成し得る。先端62は斜めにカットされた面がフィルム分断ナイフ50の方向に向いている。下シール体40には、突出したフィルム分断ナイフ50及び切込ナイフ60の受溝46、47が設けられている。   Further, as shown in FIG. 2, the upper seal body 30 is separately provided with a through hole 38 that allows the cutting knife 60 to move forward and backward, and one end 38a of the through hole 38 is located in the notch 32a. . The cutting knife 60 operates integrally with the film cutting knife 50 by the driving means 52 of the film cutting knife 50, and is preferably clamped in accordance with the timing at which the upper and lower seal bodies 30 and 40 clamp the cylindrical film. It comes to work later. The cutting knife 60 is formed in a round bar shape and includes a cutting blade having a tip 62 cut obliquely, and a substantially circular slit partially connected as shown in FIG. 3 by inserting the cutting blade into a film. (Deaeration vent 78) may be formed. The tip 62 has an obliquely cut surface facing the film cutting knife 50. The lower seal body 40 is provided with receiving grooves 46 and 47 for the protruding film cutting knife 50 and the cutting knife 60.

一対のシール体30、40は、図1〜3に示すようにサーボモータなどの駆動手段から適宜連繋機構を介して近接・離間するよう構成されており、筒状フィルムに所定間隔毎に供給された物品Pの前後位置において筒状フィルムを挟持して横シールを施す。このとき、互いのシール体30、40の切欠き部32a、42aの位置が一致することでフィルムに接触しないため挟持面32、42における挟持部32b、42bのみでフィルムが加熱されて横シールが施される。これにより得られる包装袋の前後端部位には、図3に示すように溶着部74と未シール部である通気路76とが直線状に並んだ横シール部72が形成される。このシール体30、40が挟持するタイミングに合わせて駆動手段52によりフィルム分断ナイフ50が挟持面32、42より突出して袋の一方の端部と他方の端部とに対応して形成される両横シール部で挟まれた中間位置をフィルムの搬送方向と交差する幅方向に切断する。また、切込ナイフ60が上シール体30の挟持面32より突出してフィルムに突き入れられることで図3に示したように得られる包装袋において未シール部からなる通気路76の領域内に脱気用通気孔78が穿孔される。その際、切込ナイフ60は、斜めにカットされた円形の刃62の頂上部付近64がフィルムに突き入れられるように、設定されており脱気用通気孔78は接続部78aで繋がった略円形のスリットに切込形成される。接続部78aは出来上がった袋の外側を向くように形成され、脱気用通気孔78が万が一裂けた場合であっても、脱気用通気孔78の切込みの終端からの裂けが袋の外側に向かって裂けるように作用するので、袋の本体側に裂け進むことがない。なお切込ナイフ60のフィルムへの突き入れ量を変更することで接続部78aの長さを変更することができる。また突入方向に所望の切込形状となる切刃を突入量に対応した長さで設ける等によって種々の形状の切込ナイフ60を採用することができる。この穿孔時において一対のシール体の挟持面32、42によりフィルムが保持されるので位置ずれすることなく、また確実で良好に穿孔することができる。
また、脱気用通気孔78の左右両側(溶着部74)はフィルムが重なって溶着される部位となるので、脱気用通気孔78が裂けて孔が広がったりフィルムが破れたりするといった事態を抑制することができる。このようにして得られた包装袋70は、図3に示したように包装袋70の端部に位置する横シール部72に、未シール部である通気路76と、未シール部を表裏に貫通する脱気用通気孔78が形成される。
The pair of seal bodies 30 and 40 are configured to approach and separate from the driving means such as a servo motor as appropriate through a linkage mechanism as shown in FIGS. 1 to 3 and are supplied to the tubular film at predetermined intervals. The cylindrical film is sandwiched between the front and rear positions of the article P, and a horizontal seal is applied. At this time, since the positions of the cutout portions 32a and 42a of the seal bodies 30 and 40 coincide with each other and do not come into contact with the film, the film is heated only by the sandwiching portions 32b and 42b on the sandwiching surfaces 32 and 42, and the horizontal seal is formed. Applied. As shown in FIG. 3, a lateral seal portion 72 in which a welded portion 74 and an air passage 76 that is an unsealed portion are arranged in a straight line is formed at the front and rear end portions of the resulting packaging bag. The film cutting knife 50 is protruded from the clamping surfaces 32 and 42 by the driving means 52 in accordance with the timing at which the seal bodies 30 and 40 are clamped, and is formed corresponding to one end and the other end of the bag. The intermediate position sandwiched between the horizontal seal portions is cut in the width direction crossing the film transport direction. Further, the cutting knife 60 protrudes from the holding surface 32 of the upper seal body 30 and is inserted into the film, so that the cutting knife 60 is removed into the region of the ventilation path 76 formed of the unsealed portion in the packaging bag obtained as shown in FIG. A vent hole 78 is drilled. At that time, the cutting knife 60 is set so that the vicinity of the top 64 of the circular blade 62 cut obliquely is pushed into the film, and the vent hole 78 for deaeration is connected to the connection portion 78a. Cut into a circular slit. The connecting portion 78a is formed so as to face the outside of the completed bag, and even if the vent hole 78 for deaeration is torn, the tear from the end of the cut of the vent hole 78 for the deaeration is outside the bag. Since it acts so as to tear, it does not proceed to the main body side of the bag. In addition, the length of the connection part 78a can be changed by changing the amount of insertion of the cutting knife 60 into the film. In addition, various types of cutting knives 60 can be employed by providing a cutting blade having a desired cutting shape in the entering direction with a length corresponding to the amount of entry. Since the film is held by the sandwiching surfaces 32 and 42 of the pair of sealing bodies at the time of perforation, the perforation can be performed surely and satisfactorily without being displaced.
In addition, since the left and right sides (welding portion 74) of the deaeration vent hole 78 are portions where the film is overlapped and welded, the deaeration vent hole 78 is torn and the hole is widened or the film is torn. Can be suppressed. As shown in FIG. 3, the packaging bag 70 obtained in this way has a lateral seal portion 72 located at the end of the packaging bag 70, a ventilation path 76 which is an unsealed portion, and an unsealed portion on the front and back. A deaeration vent 78 penetrating therethrough is formed.

本実施形態によれば、切欠き部32a、42aを有する上下一対のシール体30、40で包装フィルムを挟持して横シールを施すことで筒状フィルムの横シール部72に未シール部となる通気路76が形成され、またシール体30、40の挟持面32、42で挟持されるタイミングに合わせて切込ナイフ60で通気路76内に穿孔することにより、脱気のために十分な開口を確保でき、且つ、脱気用通気孔78を位置ずれなく確実に穿孔できるため包装の見栄えを損ねることなく、脱気効率を高めた通気路76を有する包装袋70を得ることができる。また、脱気用通気孔78は、切込線の一部が不連続で繋がっていない接続部78aを有する略円形のスリットとしているのでその加工時に切屑が生じることがない。よって、加工時に発生する切屑を回収する手段を設ける必要がない。更に、包装袋70内の空気が排出される時には外側にめくれ、通常は孔を塞ぐ蓋になるので、包装袋70内への異物の進入を抑制することができる。   According to the present embodiment, the packaging film is sandwiched between the pair of upper and lower sealing bodies 30 and 40 having the cutout portions 32a and 42a, and a lateral seal is applied to form an unsealed portion on the lateral seal portion 72 of the tubular film. A ventilation passage 76 is formed, and a sufficient opening for deaeration is provided by perforating the ventilation passage 76 with the cutting knife 60 in accordance with the timing of clamping by the clamping surfaces 32 and 42 of the seal bodies 30 and 40. Can be ensured, and the vent hole 78 for deaeration can be surely perforated without misalignment, so that the packaging bag 70 having the air passage 76 with improved deaeration efficiency can be obtained without impairing the appearance of the package. Further, since the deaeration vent hole 78 is a substantially circular slit having a connection portion 78a in which a part of the cut line is not connected discontinuously, chips are not generated during the processing. Therefore, there is no need to provide means for collecting chips generated during processing. Furthermore, when the air in the packaging bag 70 is exhausted, it is turned to the outside and normally serves as a lid that closes the hole, so that entry of foreign matter into the packaging bag 70 can be suppressed.

(変更例)
1.切込ナイフ60は、上シール体30の外側に配設してもよい。即ち図4、5に示すように切込ナイフ260を上シール体30のフィルム搬送方向外側に隣接するようにカッター取付部26に取り付け、包装フィルムの溶着部74に隣接する部位を穿孔して脱気用通気孔278を形成する。筒状フィルムは、切込ナイフ260で穿孔すべく部位の近くを上下一対のシール体30、40により挟持されているので、位置ずれすることなく確実に脱気用通気孔278を形成することができる。
また、脱気用通気孔278は通気路76の延長線上に位置するように穿孔されるため、重なったフィルム同士が密着状態となった通気路76を開口させるように作用して空気の通りを良好にする。なお、高さのある物品Pを包装する場合は、シール体30、40がフィルムを挟持すると、脱気用通気孔278を穿孔する位置においては、上下のフィルムが重ならず間に空間ができることがあり、この場合は上側のフィルムのみに脱気用通気孔278が形成されるが、前述のように重なった上下のフィルムを貫通する場合と同様な効果を奏する。
本実施形態では、切込ナイフ60が溶着部74に挟まれた未シール部である通気路76に脱気用通気孔78を穿孔する構成について示したが、これに限定されるものではない。
2.脱気用通気孔は、図3に示す切込線の一部が不連続で繋がっていない接続部を形成するものに代えて図6に示したように切込ナイフにより円形の抜き孔とした脱気用通気孔378にしてもよい。
3.図7に示すように、フィルム搬送方向下流側の上シール体支持部22に、押圧手段400を取付ける構成であってもよい。押圧手段400は、エアシリンダからなる駆動手段402によりスポンジ材などの弾性体からなる押圧部材404でコンベヤCに載置されて搬送される筒状フィルムF中の物品P上面を押さえるように移動し空気を排出する。シール体30、40より下流側に位置する筒状フィルムFの下流端は横シールが施されており、かかる状態において、押圧部材で押圧して筒状フィルムFの終端から上流側へ空気を排出し得る。これにより脱気包装された包装袋を得ることができる。
4.押圧手段で脱気して得られた包装袋を本横シール装置20の下流側において横シール部を物品Pの前後端面に沿うよう折り曲げて折り曲げた横シール部を前記端面との間で挟み付けて加熱するようにした密着包装に適用でき、不連続で繋がっていない切込線とした切込孔となるように切込形成することにより横シール部を挟んで加熱することで未シール部と切込孔とを加熱溶着された密封包装袋を得ることができる。
(Example of change)
1. The cutting knife 60 may be disposed outside the upper seal body 30. That is, as shown in FIGS. 4 and 5, the cutting knife 260 is attached to the cutter attachment portion 26 so as to be adjacent to the outer side of the upper seal body 30 in the film conveyance direction, and the portion adjacent to the welding portion 74 of the packaging film is perforated and removed. The air vent 278 is formed. Since the tubular film is sandwiched between a pair of upper and lower seal bodies 30 and 40 so as to be perforated by the cutting knife 260, it is possible to reliably form the vent hole 278 for deaeration without being displaced. it can.
Further, since the deaeration vent hole 278 is perforated so as to be positioned on the extension line of the vent path 76, it acts to open the vent path 76 in which the overlapped films are in close contact with each other, thereby allowing the air to pass through. Make good. In the case of packaging an article P having a height, when the sealing bodies 30 and 40 sandwich the film, there is a space between the upper and lower films without overlapping at the position where the vent holes 278 for deaeration are perforated. In this case, the vent hole 278 for deaeration is formed only in the upper film, but the same effect as that obtained when the upper and lower films overlapped as described above is penetrated.
In the present embodiment, the configuration is shown in which the degassing vent hole 78 is drilled in the vent path 76 which is an unsealed portion where the cutting knife 60 is sandwiched between the welded portions 74, but the present invention is not limited to this.
2. The vent hole for deaeration was changed to a circular punch hole by a cutting knife as shown in FIG. 6 instead of forming a connection part in which a part of the cutting line shown in FIG. A deaeration vent 378 may be used.
3. As shown in FIG. 7, the structure which attaches the press means 400 to the upper seal body support part 22 in the film conveyance direction downstream may be sufficient. The pressing means 400 moves so as to press the upper surface of the article P in the cylindrical film F that is placed on the conveyor C and conveyed by the pressing member 404 made of an elastic material such as sponge material by the driving means 402 made of an air cylinder. Exhaust air. The downstream end of the tubular film F located downstream from the seal bodies 30 and 40 is laterally sealed, and in this state, the air is discharged from the end of the tubular film F to the upstream side by pressing with a pressing member. Can do. Thereby, the packaging bag by which deaeration packaging was carried out can be obtained.
4). The packaging bag obtained by deaeration with the pressing means is sandwiched between the end face by bending the transverse seal part along the front and rear end faces of the article P on the downstream side of the transverse seal apparatus 20. It can be applied to close-packed packaging that is heated by heating, and it forms an incision hole that forms a notch line that is not connected discontinuously. A sealed packaging bag in which the cut hole is heat-welded can be obtained.

以上、本発明の実施形態について説明したが、本発明の製袋充填機の横シール装置とその装置によって得られる包装袋は、本実施形態に限定されず、その他各種の形態で実施することができるものである。   As mentioned above, although embodiment of this invention was described, the horizontal sealing apparatus of the bag making filling machine of this invention and the packaging bag obtained by the apparatus are not limited to this embodiment, It can implement with other various forms. It can be done.

20:横シール装置 30:上シール体 32、42:挟持面
40:下シール体 32a、42a:切欠き部 50:フィルム分断ナイフ
52:駆動手段 60:切込ナイフ 70:包装袋 74:溶着部
76:通気路 78:脱気用通気孔
20: Horizontal sealing device 30: Upper sealing body 32, 42: Holding surface 40: Lower sealing body 32a, 42a: Notch portion 50: Film cutting knife 52: Driving means 60: Cutting knife 70: Packaging bag 74: Welding portion 76: Ventilation path 78: Vent hole for deaeration

Claims (7)

脱気用通気孔を有する包装袋を得るための製袋充填機の横シール装置であって、
切欠き部で分断される挟持面を有するシール体と、
前記脱気用通気孔を穿孔する切込ナイフと、を備え、
前記シール体がその挟持面で包装フィルムを挟持することにより、前記挟持面で溶着部を形成するとともに切欠き部が対向する部位に包装袋内外を連通する通気路を形成し、
前記シール体が包装フィルムを挟持する際に、前記切込ナイフで前記包装フィルムの通気路または通気路の延長上を穿孔することを特徴とする製袋充填機の横シール装置。
A lateral sealing device of a bag making and filling machine for obtaining a packaging bag having a vent hole for deaeration,
A sealing body having a clamping surface divided by a notch, and
A cutting knife that pierces the vent hole for deaeration, and
The sealing body sandwiches the packaging film on the sandwiching surface, thereby forming a welded portion on the sandwiching surface and forming a ventilation path that communicates the inside and outside of the packaging bag at a portion facing the notch portion,
A transverse sealing device for a bag making and filling machine, wherein when the sealing body sandwiches a packaging film, the cutting knife perforates the air passage of the packaging film or an extension of the air passage.
前記切込ナイフは、前記シール体の駆動手段とは別の駆動手段により動作し、前記シール体が前記包装フィルムを挟持するタイミングに合せて前記包装フィルムを穿孔することを特徴とする請求項1に記載の製袋充填機の横シール装置。   2. The cutting knife is operated by a driving means different from the driving means for the seal body, and the sealing film perforates the packaging film in accordance with a timing at which the packaging film is sandwiched. A lateral seal device for the bag making and filling machine according to 1. 前記切込ナイフを挟持面から突出作動して脱気用の通気孔を穿孔するよう構成したことを特徴とする請求項1または請求項2に記載の製袋充填機の横シール装置。   The lateral sealing device for a bag making and filling machine according to claim 1 or 2, wherein the cutting knife is configured to project from a clamping surface to perforate a vent hole for deaeration. 前記脱気用通気孔は、一部が繋がった略円形のスリットであることを特徴とする請求項1から請求項3のいずれかに記載の製袋充填機の横シール装置。   The lateral sealing device for a bag making and filling machine according to any one of claims 1 to 3, wherein the vent hole for deaeration is a substantially circular slit partly connected. 前記包装フィルムを一包装長毎に、フィルムの搬送方向と交差する方向に切断するフィルム分断ナイフを更に備え、
該フィルム分断ナイフと前記切込ナイフとは、一体的に動作可能な構成としたことを特徴とする請求項1から請求項4のいずれかに記載の製袋充填機の横シール装置。
A film cutting knife that cuts the packaging film in each packaging length in a direction that intersects the film conveyance direction,
The horizontal sealing device for a bag making and filling machine according to any one of claims 1 to 4, wherein the film cutting knife and the cutting knife are configured to be able to operate integrally.
物品の上面を押さえて筒状に形成された包装フィルム内の空気を排出する押圧手段を更に備えることを特徴とする請求項1から請求項5のいずれかに記載の製袋充填機の横シール装置。   The lateral seal of the bag making and filling machine according to any one of claims 1 to 5, further comprising pressing means for discharging the air in the packaging film formed in a cylindrical shape while pressing the upper surface of the article. apparatus. 請求項1から請求項6のいずれかに記載の製袋充填機によって得られる包装袋。
A packaging bag obtained by the bag making and filling machine according to any one of claims 1 to 6.
JP2013066550A 2013-03-27 2013-03-27 Lateral seal device for bag-making packing machine and packaging bag made by the same Pending JP2014189303A (en)

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CN104443565A (en) * 2014-12-09 2015-03-25 江苏申凯包装高新技术股份有限公司 Heat-seal cutter with lines
JP2016124555A (en) * 2014-12-26 2016-07-11 ゼネラルパッカー株式会社 Gas filling and packaging machine
CN107972929A (en) * 2017-12-07 2018-05-01 安徽九华峰生物科技有限公司 A kind of packaging bag horizontal edge enclosed mechanism
CN109515879A (en) * 2018-12-14 2019-03-26 广州市永合祥自动化设备科技有限公司 Cutter structure and envelope method
CN109573209A (en) * 2019-01-15 2019-04-05 杭州丙甲科技有限公司 The heat-sealing of packaging material and cutting mechanism and its fervent method
CN112721316A (en) * 2020-12-29 2021-04-30 成都市兴恒泰印务有限公司 Production process for producing special-shaped packaging bags

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104443565A (en) * 2014-12-09 2015-03-25 江苏申凯包装高新技术股份有限公司 Heat-seal cutter with lines
JP2016124555A (en) * 2014-12-26 2016-07-11 ゼネラルパッカー株式会社 Gas filling and packaging machine
CN107972929A (en) * 2017-12-07 2018-05-01 安徽九华峰生物科技有限公司 A kind of packaging bag horizontal edge enclosed mechanism
CN109515879A (en) * 2018-12-14 2019-03-26 广州市永合祥自动化设备科技有限公司 Cutter structure and envelope method
CN109573209A (en) * 2019-01-15 2019-04-05 杭州丙甲科技有限公司 The heat-sealing of packaging material and cutting mechanism and its fervent method
CN112721316A (en) * 2020-12-29 2021-04-30 成都市兴恒泰印务有限公司 Production process for producing special-shaped packaging bags

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