JP5568296B2 - Bag making and filling cylinder in vertical bag making and filling machine - Google Patents
Bag making and filling cylinder in vertical bag making and filling machine Download PDFInfo
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Description
この発明は、帯状包装材からの袋の形成と当該袋内への包装物の充填とを順次繰り返して袋包装体を製造する縦型製袋充填包装機において、筒状包装材を案内するとともに内部を通して包装物が投入される製袋充填筒構造に関する。 The present invention guides a cylindrical packaging material in a vertical bag making and filling packaging machine that manufactures a bag packaging by sequentially repeating the formation of a bag from a belt-shaped packaging material and the filling of the package into the bag. The present invention relates to a bag making and filling cylinder structure in which a package is inserted through the inside.
袋を製造しながらその袋内に被包装品を包装する製袋充填包装機として、包装材の送り及び被包装品の供給を縦方向に行う縦型製袋充填包装機がある。縦型製袋充填包装機は、縦方向に送られる帯状包装材が製筒器により湾曲状に曲成され、製袋充填筒の外側周面に沿って走行案内されることにより略筒状となり、その略筒状に成形された包装材の合わせ目にセンターシールを施して筒状に成形し、エンドシールを施すことで袋底部を形成し、該袋底部が形成された筒状包装材内に製袋充填筒内を通路として被包装品を投入又は充填し、袋口部に相当する部分にエンドシールを施すことで被包装品を包装袋に包装した袋包装体の製造を行う。上記の工程(包装材の送り、筒の形成、袋底部の形成、被包装品の投入又は充填、袋口部の封鎖)を繰り返すことで、袋包装体を連続的に製造することができる。 2. Description of the Related Art As a bag making and filling machine that manufactures a bag and wraps a product to be packaged in the bag, there is a vertical bag making and filling machine that feeds packaging material and supplies the product to be packed in a vertical direction. A vertical bag making filling and packaging machine is formed into a substantially cylindrical shape when a belt-shaped packaging material fed in the vertical direction is bent in a curved shape by a cylinder making machine and travels along the outer peripheral surface of the bag making and filling cylinder. In the cylindrical packaging material in which the bag bottom is formed by applying a center seal to the seam of the packaging material molded in a substantially cylindrical shape and forming the bag bottom by applying an end seal. A bag package body in which the packaged product is packaged in a packaging bag is manufactured by charging or filling the packaged product into the bag making and filling cylinder and applying end sealing to a portion corresponding to the bag mouth. By repeating the above-described steps (feeding of packaging material, formation of a cylinder, formation of a bag bottom, charging or filling of a packaged product, sealing of a bag mouth), a bag package can be continuously manufactured.
袋包装体の流通性や商品陳列性等を向上するために、袋包装体の形態を角形に近づけることが要求されている。この要求に応じるために、袋を角底ガゼット袋にする或いは袋の六面をフラットにする方法や装置が考案されている。このような包装形態の場合、袋の角形を保持するために、袋の側面同士が交差する角部にシールを施して強度を高めたヘムシールを形成することがある。そうした場合、良好なヘムシールを施すために横断面が角形である角状製袋充填筒が用いられる(特許文献1参照)。図10は、そのような縦型製袋充填包装機の一例を示す概略斜視図である。 In order to improve the flowability and product display properties of the bag packaging body, it is required to make the shape of the bag packaging body close to a square shape. In order to meet this requirement, a method and an apparatus have been devised in which the bag is a square bottom gusset bag or the six sides of the bag are flat. In the case of such a packaging form, in order to maintain the square shape of the bag, a hem seal having an increased strength may be formed by applying a seal to the corner portion where the side surfaces of the bag intersect each other. In such a case, in order to provide a good hem seal, a square bag making and filling cylinder having a square cross section is used (see Patent Document 1). FIG. 10 is a schematic perspective view showing an example of such a vertical bag making filling and packaging machine.
上記のような角底形状の包装体を製造する場合、袋体内にエアを吹き込むことで形状の安定を図ることがある。また、被包装品が食品である場合、被包装品の酸化等による変質を防ぐ目的で、包装袋内の空気を窒素ガス等のように人体に無害な化学的に安定したガス(不活性ガス)に置換することがある(特許文献2、特許文献3参照)。さらに、袋体内の空気を不活性ガスに置換する場合、ガス置換率を検査するための残留酸素検出器が付属される場合もある。 When manufacturing a square bottom shaped packaging body as described above, the shape may be stabilized by blowing air into the bag body. In addition, when the packaged product is a food product, the air in the packaging bag is a chemically stable gas (inert gas) that is harmless to the human body, such as nitrogen gas, for the purpose of preventing deterioration of the packaged product due to oxidation or the like. ) (See Patent Document 2 and Patent Document 3). Further, when the air in the bag is replaced with an inert gas, a residual oxygen detector for checking the gas replacement rate may be attached.
角状製袋充填筒を用いた縦型製袋充填包装機の場合、角状製袋充填筒が通常は板金を折り曲げて製造されるので、角形の袋には良好なヘムシールが形成される反面、内側の面も角状であるが故に四隅の角部内側に被包装物或いは被包装物の破片が付着しやすい。特に被包装物が粉粒体であったりスナック菓子のような壊れやすい物である場合には、粉粒や菓子の破片の付着が発生しやすい。 In the case of a vertical bag making and filling machine using a square bag making and filling cylinder, the square bag making and filling cylinder is usually manufactured by bending a sheet metal, so that a good hem seal is formed on the square bag. Further, since the inner surface is also square, a packaged item or a fragment of the packaged item is likely to adhere to the inner corners of the four corners. In particular, when the packaged item is a granular material or a fragile item such as a snack confectionery, adhesion of powder particles or confectionery fragments tends to occur.
さらに、上述したようなエアの吹き込み、不活性ガス置換及びそれに付随する残留酸素検出等を行う場合、包装袋内への吹き込み又は吸い出しのために製袋充填筒内にパイプが配設される。この送気又は排気のためのパイプは、筒状包装材との干渉を回避するために、帯状包装材が筒状包装材に形成される前の位置において外部から製袋充填筒に接続されている。また、この送気又は排気のためのパイプは、更に製袋充填筒の内部を通って、好ましくは製袋充填筒の先端からエンドシールを形成するエンドシーラの位置付近にまで延びているのが普通である。製袋充填筒の内径の大きさによっては、ガス供給パイプ等の各種部品を支持するために製袋充填筒内にUパイプ又は角ガイドが設けられている。これらのUパイプ又は角ガイドは、充填される被包装物が引っ掛かることで製袋充填筒内に包装物のブリッジを生じさせる原因になることがある。また、包装物が粉粒体やスナック菓子のような壊れやすい物である場合には、粉粒や菓子の破片がUパイプ又は角ガイド等の部品に付着しやすい。 Further, when performing the above-described air blowing, inert gas replacement, and residual oxygen detection associated therewith, a pipe is disposed in the bag-filling cylinder for blowing or sucking into the packaging bag. In order to avoid interference with the cylindrical packaging material, the pipe for air supply or exhaust is connected to the bag making and filling cylinder from the outside at a position before the belt-shaped packaging material is formed on the cylindrical packaging material. Yes. The pipe for air supply or exhaust further extends through the inside of the bag making and filling cylinder, preferably from the tip of the bag making and filling cylinder to the vicinity of the position of the end sealer forming the end seal. It is normal. Depending on the size of the inner diameter of the bag making and filling cylinder, a U pipe or a square guide is provided in the bag making and filling cylinder to support various parts such as a gas supply pipe. These U pipes or corner guides may cause a bridging of the package in the bag making and filling cylinder when the packaged material to be filled is caught. In addition, when the package is a fragile item such as a granular material or a snack confectionery, the particles of the confectionery or the confectionery tend to adhere to parts such as a U pipe or a square guide.
上記のように、角状製袋充填筒を用いた縦型製袋充填包装機の場合、四隅に粉粒や菓子の破片が付着しやすいため、一般的なピロー包装に用いられる円筒状製袋充填筒と比べてより念入りな筒内の定期的な清掃・洗浄が必要になる。エアの吹き込み、不活性ガス置換を伴う場合には、送気又は排気のためにパイプが筒内に設置されることに起因して粉粒や菓子の破片が付着しやすい箇所が増えるため、清掃・洗浄の必要性がさらに高まる。また、被包装物がパイプに引っ掛かることで製袋充填筒内に包装物のブリッジを発生した場合は、筒内の臨時的な清掃・洗浄が必要となる。筒内の清掃・洗浄を実施する際には、筒内の四隅部や筒内面とパイプの接触部分の隅部や隙間をくまなく清掃・洗浄をする必要があり作業時間が長くなる等、作業性が悪いという問題もある。 As described above, in the case of a vertical bag making and filling machine using a square bag making and filling cylinder, since powder particles and confectionery fragments are likely to adhere to the four corners, a cylindrical bag making used for general pillow packaging It is necessary to clean and clean the inside of the cylinder more carefully than the filling cylinder. When air blowing or inert gas replacement is involved, the pipes are installed in the cylinder for air supply or exhaust.・ The need for cleaning is further increased. Further, when a package bridge is generated in the bag making and filling cylinder due to the article to be packaged being caught by the pipe, temporary cleaning / washing in the cylinder is required. When cleaning and cleaning the inside of the cylinder, it is necessary to clean and wash all four corners in the cylinder and the corners and gaps between the inner surface of the cylinder and the contact part of the pipe. There is also a problem that the nature is bad.
縦型製袋充填包装機において、横断面が角形の製袋充填筒を用いて袋包装体を製造する場合でも、当該角形製袋充填筒の内部において投入された被包装品の良好な落下特性、メンテナンス性及び、粉粒や破片が付着し難くするとともにたとえそれらが付着したとしても清掃を簡単にするという衛生性を兼ね備えた角状製袋充填筒が必要とされている。 Even in the case of manufacturing a bag package using a bag making and filling cylinder having a square cross section in a vertical bag making and filling machine, good drop characteristics of the packaged product put in the inside of the square bag making and filling cylinder There is a need for a square bag-filling cylinder that has maintainability and hygienic properties that make it difficult to adhere powder particles and debris, and even if they adhere, it simplifies cleaning.
本発明の目的は、このような従来の問題を解決しようとするものであり、横断面が角形の製袋充填筒の形状と良好な落下特性とメンテナンス性、衛生性を可能にする縦型製袋充填包装機における製袋充填筒を提供することである。 An object of the present invention is to solve such a conventional problem, and the shape of a bag-filling cylinder having a square cross section, a good drop characteristic, and maintenance and hygiene are possible. It is providing the bag making filling cylinder in a bag filling packaging machine.
本発明は、このような課題を解決するため、帯状包装材から角形袋の形成と前記袋内へ被包装品の投入とを順次繰り返して角形袋包装体を製造する縦型製袋充填包装機において、前記帯状包装材を外側周面に沿わせた湾曲状態で走行案内させつつ筒状包装材を形成するのに用いられる横断面角形の外側筒体と、前記外側筒体の内部に嵌合され且つ前記被包装物が投入される角状筒体であり、四隅の内面を一つ又は複数の円弧状の凹曲面、或いは鈍角で折れ曲がった複数の連続する折れ曲がり面を組合せることで内周面が滑らかに形成された内側筒体との二重構造に構成されていることを特徴とする製袋充填筒構造である。 In order to solve such problems, the present invention is a vertical bag filling and packaging machine for manufacturing a rectangular bag package by sequentially repeating the formation of a rectangular bag from a belt-shaped packaging material and the introduction of a packaged product into the bag. in the outer cylindrical body cross-section angular shaped for use in forming the strip-shaped packaging material while was traveling guidance in a curved state in which along a outer periphery tubular packaging material, fitted inside said outer tubular body And a rectangular tube body into which the article to be packaged is inserted , and the inner surface of the four corners is combined with one or a plurality of arc-shaped concave curved surfaces or a plurality of continuous bent surfaces bent at an obtuse angle . a bag making filling tube structure, wherein the circumferential surface is formed in a double structure with smoothly-formed inner cylinder.
この縦型製袋充填包装機における製袋充填筒構造において、前記内側筒体は、前記四隅以外の外縁において前記外側角状筒体の内縁と接する大きさの角状筒体であるとすることができる。 In bag-making filling tube structure in this vertical bag filling and packaging machine, wherein the inner tubular body, and Ru prismatic tubular body der sized to contact with the inner edge of the outer angle-shaped tubular body at the outer edge other than the four corners be able to.
この縦型製袋充填包装機における製袋充填筒構造において、前記外側筒体と前記内側筒体との間には前記四隅に対応してそれぞれ空隙部が形成されており、当該空隙部はその上下端部で開く開口部において蓋材で閉鎖されているとすることができる。 In the bag making and filling cylinder structure in this vertical bag making and filling machine, gaps are formed between the outer cylinder and the inner cylinder corresponding to the four corners, respectively. It can be said that it is closed with a lid material at the opening that opens at the upper and lower ends .
この縦型製袋充填包装機における製袋充填筒構造において、前記外側筒体と前記内側筒体との間には前記四隅に対応してそれぞれ空隙部が形成されており、前記空隙部の少なくとも一つがエア又は不活性ガスの吹き込みと空気の吸い出しとをするための通路として用いられており、当該通路として用いられている前記空隙部以外の前記空隙部について蓋材で閉鎖されているとすることができる。
また、前記通路には、エア又は不活性ガスの吹き込みと空気の吸い出しをするためのガス供給パイプ及び/又はガス吸引パイプが接続又は挿入されているとすることができる。
In bag-making filling tube structure in this vertical bag filling and packaging machine, are void portions respectively formed corresponding to the four corners between the inner cylinder and the outer cylinder, said air-gap portion at least one has been used as a passage for the suction of the blowing and air of air or inert gas, for the gap portion other than the gap portion is used as the passage is closed by a lid member Can be.
In addition, a gas supply pipe and / or a gas suction pipe for blowing air or inert gas and sucking air can be connected to or inserted into the passage.
この縦型製袋充填包装機における製袋充填筒構造において、上側の前記蓋材は、前記製袋充填筒を製筒器ユニットに組み付け固定する固定部を兼用させることができる。 In bag-making filling tube structure in this vertical bag filling and packaging machine, the cover member of the upper side, can be also used a fixing portion for fixing the assembly to a manufacturing cylinder unit the bag filling tube.
この縦型製袋充填包装機における製袋充填筒構造において、前記帯状包装材から四隅にヘムシールの施された角形袋の形成と前記袋内への前記被包装物の投入とエア又は不活性ガスの充填とを順次繰り返してヘムシール付き角形袋包装体を製造する縦型製袋充填包装機に適用することができる。 In bag-making filling tube structure in this vertical bag filling and packaging machine, on and air or inert gas in the said packaged articles from strip packaging material to the formation of square bags, having undergone Hemushiru four corners within said bag Can be applied to a vertical bag making filling and packaging machine that manufactures a square bag packaging body with a hem seal by sequentially repeating the above filling.
本発明による製袋充填筒構造は、上記のように構成されているので、次のような格別な効果を奏する。即ち、外側筒体を横断面角形の筒体とし、且つ外側筒体の内部に嵌合され且つ被包装物が投入される内側筒体を、四隅の内面を一つ又は複数の円弧状の凹曲面、或いは鈍角で折れ曲がった複数の連続する折れ曲がり面を組合せることで、内周面を滑らかに形成された角状筒体として、製袋充填筒を内外二重筒体式に構成しているので、角形袋包装体を製造しつつ、内側筒体の内周面は被包装物の滓が付着し辛くなって汚れにくくなり、清掃作業を行う頻度が低くて済むとともにメンテナンス性や衛生性を向上した製袋充填筒構造を得ることができる。また、内側筒体の内周面が汚れた場合であっても、内側筒体の滑らかな内周面を清掃すればよいので、汚れを落とし易くて清掃作業が簡単になり、作業負担や作業時間等の作業性を向上させることができる。また、外側に横断面角形の筒体を用いることで良好なヘムシールを形成することも可能になる。また、袋内にエア又は不活性ガスの充填を行う場合でも、外側筒体と内側筒体を嵌合したときに形成される空隙部を、ガス供給パイプ及び/又はガス吸引パイプを接続又は挿入してエア又は不活性ガスの吹き込みと空気の吸い出しとをするための通路として使用することが可能であるので、ガス供給パイプが落下特性や衛生性に悪影響を及ぼすことが無い。 Since the bag making and filling cylinder structure according to the present invention is configured as described above, the following special effects are achieved. That is, the outer cylinder is a cylinder having a rectangular cross section , and the inner cylinder that is fitted inside the outer cylinder and into which an article to be packaged is inserted has one or more arc-shaped recesses on the inner surfaces of the four corners. curved, some have than combining the bent surface a plurality of successive bent at an obtuse angle, the inner circumferential surface as a smooth-formed angular cylindrical body, Configure the bag-making filling tube inside and outside dual cylinder body formula Therefore, while manufacturing a square bag package, the inner peripheral surface of the inner cylinder becomes difficult to get dirty because the wrinkles of the packaged article are difficult to adhere to, and the frequency of cleaning work is low, and maintenance and hygiene are also possible. It is possible to obtain a bag-filling cylinder structure with improved properties. In addition, even if the inner peripheral surface of the inner cylinder is dirty, it is only necessary to clean the inner peripheral surface of the inner cylinder, so that it is easy to remove the dirt and the cleaning work is simplified. Workability such as time can be improved. In addition, it is possible to form a good hem seal by using a cylindrical body having a square cross section on the outside . Even when air or inert gas is filled in the bag , the gas supply pipe and / or the gas suction pipe are connected or inserted into the gap formed when the outer cylinder and the inner cylinder are fitted. since it is possible to use as a passage for the suction of the blowing air of the air or inert gas is, never gas supply pipes adversely affect the falling characteristics and hygiene.
以下、図面を参照して、この発明による縦型製袋充填包装機における製袋充填筒の構造を説明する。図2は、本発明による内外二重筒体式に構成された製袋充填筒構造の外側筒体30を示す図であり、(a)はその外側筒体の横断面図、(b)はその外側筒体の正面図(高さ方向の一部を省略して記載)である。図3は、本発明による内外二重筒体式に構成された製袋充填筒構造の内側筒体31を示す図であり、(a)はその内側筒体の横断面図、(b)はその内側筒体の正面図である。内側筒体31は、角状筒体の四隅を円弧状に加工したものである。外側筒体30は、例えば、板金加工によって横断面が矩形に形成された筒体であり、外側の側面には帯状の包装材が縦方向に案内されて走行される。その走行中又は停止中にセンターシールが施される。内側筒体31は、外側筒体30内に嵌合可能なサイズの角状の筒体であり、製袋充填時において包装される被包装品が内部に投入される。内側筒体31は、四隅を円弧状の凹曲面、即ち4分の1の円筒面に加工することで、隣合う平面の内面に滑らかに接続され、全体としても内面が滑らかに形成されている。 Hereinafter, the structure of a bag making and filling cylinder in a vertical bag making and filling packaging machine according to the present invention will be described with reference to the drawings. FIG. 2 is a view showing an outer cylinder 30 of a bag-filling cylinder structure configured in an inner / outer double cylinder type according to the present invention, (a) is a cross-sectional view of the outer cylinder, and (b) is It is a front view (a part of height direction is omitted and described) of an outer cylinder. FIG. 3 is a view showing the inner cylinder 31 of the bag-filling cylinder structure configured as an inner / outer double cylinder type according to the present invention, (a) is a cross-sectional view of the inner cylinder, and (b) is It is a front view of an inner side cylinder. The inner cylinder 31 is obtained by processing the four corners of a rectangular cylinder into an arc shape. The outer cylinder 30 is, for example, a cylinder whose cross section is formed in a rectangular shape by sheet metal processing, and a belt-like packaging material is guided in the vertical direction on the outer side surface and travels. A center seal is applied while the vehicle is running or stopped. The inner cylinder 31 is a rectangular cylinder having a size that can be fitted into the outer cylinder 30, and an article to be packaged that is packaged at the time of bag-filling is loaded therein. The inner cylindrical body 31 is smoothly connected to the inner surface of an adjacent plane by processing the four corners into an arc-shaped concave curved surface, that is, a quarter cylindrical surface, and the inner surface is formed smoothly as a whole. .
図4は、外側筒体30と内側筒体31を嵌合することを示す図である。図5は、外側筒体30と内側筒体31を嵌合させた内外二重筒体式に構成された製袋充填筒32を示す図であり、(a)はその内外二重筒体式に構成された製袋充填筒の横断面図、(b)はその内外二重筒体式に構成された製袋充填筒の正面図である。本発明による内外二重筒体式に構成された製袋充填筒構造は、図1で示すように袋体にヘムシールを施し、袋体内部にエアまたはガスの充填を行う縦型製袋充填包装機に適用可能であり、以下では、その実施形態について説明する。 FIG. 4 is a diagram showing that the outer cylindrical body 30 and the inner cylindrical body 31 are fitted. FIG. 5 is a view showing a bag making and filling cylinder 32 configured as an inner / outer double cylinder type in which an outer cylinder 30 and an inner cylinder 31 are fitted, and FIG. 5 (a) shows the inner / outer double cylinder type. The cross-sectional view of the made bag making and filling cylinder, (b) is a front view of the bag making and filling cylinder configured in the inner and outer double cylinder type. The bag making and filling cylinder structure configured as an inner / outer double cylinder type according to the present invention is a vertical bag making and filling machine which hem-seals a bag body and fills the bag body with air or gas as shown in FIG. In the following, the embodiment will be described.
図6で示すように、内外二重筒体式に構成された製袋充填筒32の長手方向両端面の開口部は、蓋材33、34によって閉鎖される。蓋材33、34は、例えば溶接によって製袋充填筒32の長手方向両端面に固着される。蓋材33、34は、外側筒体30と四隅を滑らかな曲面に加工した内側筒体31との間に形成された4箇所の空隙部の上下に開口する開口部35a〜35dのうち、エアまたは充填ガスを袋内に供給するガス供給パイプ5を挿入する通路として使用する空隙部に対応した開口部35aを除く開口部35b〜35dを閉鎖している。蓋材33、34は、内側筒体31の内部に形成されている被包装品の落下通路に通じる開口部については覆っておらず、投入又は充填される被包装品の通過を許容している。 As shown in FIG. 6, the opening portions on both end surfaces in the longitudinal direction of the bag making and filling cylinder 32 configured as an inner and outer double cylinder are closed by lid members 33 and 34. The lid members 33 and 34 are fixed to both end faces in the longitudinal direction of the bag making and filling cylinder 32 by welding, for example. The lid members 33 and 34 are air holes among the openings 35a to 35d that open above and below the four gaps formed between the outer cylinder 30 and the inner cylinder 31 whose four corners are processed into smooth curved surfaces. Or the opening parts 35b-35d except the opening part 35a corresponding to the space | gap part used as a channel | path which inserts the gas supply pipe 5 which supplies filling gas in a bag are closed. The lid members 33 and 34 do not cover the opening part that leads to the drop passage of the packaged product formed inside the inner cylinder 31, and allows the packaged product to be charged or filled to pass therethrough. .
被包装品の落下方向上流側の上端部蓋材33は、製袋充填筒40の上流端部に当てられて溶接される蓋材33aと、その周囲に拡がり且つ製袋器ユニット50へ取り付けられるフランジ33bとを備えている。フランジ33bには図示のように四隅に固着具(締付ボルト)が挿入される取り付け孔33cが形成されている。 The upper end lid member 33 on the upstream side in the dropping direction of the packaged product is attached to the bag making unit 50 that extends around the lid member 33a that is applied to the upstream end portion of the bag making and filling tube 40 and is welded. And a flange 33b. As shown in the figure, the flange 33b is formed with attachment holes 33c into which four fasteners (clamping bolts) are inserted.
内外二重筒体式に構成された製袋充填筒32に上端部蓋材33及び下端部蓋材34を固着した後に、上流側の端部にエア源又は充填ガス源に繋がる流体供給管4(図1参照)と接続可能な詮が取り付けられているガス供給パイプ5を挿入し上端部蓋材33及び下端部蓋材34に対して溶接により固着する。ガス供給パイプ5の下端は、袋内にガスを供給するため、下端部蓋材34の下面に開口するか、或いは下部蓋材34を貫通して更に下側に延びている。これらの溶接による固着作業においては、部材間に隙間が残らないように行うことが肝要である。特に下端部蓋材34においては、充填される粉体や被包装品の破片が舞い上がって開口部35b〜35dに侵入しないように清浄に保つことができるようにする。これにより袋体内部にエアまたはガスの充填を実施する内外二重筒体式に構成された製袋充填筒40が完成する。 After the upper end cover member 33 and the lower end cover member 34 are fixed to the bag making and filling tube 32 configured as an inner / outer double cylinder type, the fluid supply pipe 4 connected to the air source or the filling gas source at the upstream end portion ( The gas supply pipe 5 to which a hook that can be connected to the gas supply pipe 5 is inserted and fixed to the upper end cover member 33 and the lower end cover member 34 by welding. In order to supply gas into the bag, the lower end of the gas supply pipe 5 opens on the lower surface of the lower end lid member 34 or extends further downward through the lower lid member 34. It is important to perform the fixing work by these welding so that no gap remains between the members. In particular, the lower end cover member 34 can be kept clean so that the powder to be filled and the fragments of the packaged goods rise up and do not enter the openings 35b to 35d. As a result, the bag making and filling cylinder 40 configured as an inner and outer double cylinder that fills the bag body with air or gas is completed.
次に、図7で示すように、前記製袋充填筒40を以下のように構成された製筒器ユニット50に組み付け固定する。製筒器ユニット50は、製筒器6を固着させた縦型製袋充填包装機本体への取り付け板52と、製袋充填筒の取り付け板53を上下方向に2本の接合支柱54a、54bで組み付け固定されている。製袋充填筒40は、取付け板53に形成された製袋充填筒挿入孔53aを通して矢印で示すように製筒器6内へ挿入され、上端部蓋材33がフランジ33bにおいて取付け孔33cと取付け板53に形成されている取付け孔53bとに固着具を通すことにより、取付け板53に固定される。 Next, as shown in FIG. 7, the bag making and filling cylinder 40 is assembled and fixed to a cylinder making unit 50 configured as follows. The cylinder making unit 50 has two attachment struts 54a and 54b in the vertical direction, the attachment plate 52 to the vertical bag making and filling machine body to which the cylinder making device 6 is fixed, and the attachment plate 53 of the bag making and filling cylinder. It is fixed by assembly. The bag making and filling cylinder 40 is inserted into the cylinder making device 6 as indicated by an arrow through the bag making and filling cylinder insertion hole 53a formed in the attachment plate 53, and the upper end cover member 33 is attached to the attachment hole 33c at the flange 33b. By passing the fixing tool through the mounting hole 53 b formed in the plate 53, the plate 53 is fixed to the mounting plate 53.
以上により、袋体内部にエアまたはガスの充填を行う縦型製袋充填包装機に取り付けて使用可能な図8に示す製筒器付製袋充填筒ユニット60が完成する。上記の製筒器付製袋充填筒ユニット60を使用した縦型製袋充填包装機の概略斜視図を図1に示す。なお図1においては、包装機の概略を示すため製筒器ユニット50のうち、縦型製袋充填包装機本体への取り付け板52と、製袋充填筒の取り付け板53と、両板52,53を組み付ける上下方向に2本の接合支柱54a,54bを省いて描いてある。 As described above, the bag making and filling cylinder unit 60 with a cylinder making device shown in FIG. 8 that can be used by being attached to a vertical bag making and filling packaging machine for filling air or gas into the bag body is completed. FIG. 1 shows a schematic perspective view of a vertical bag making and filling machine using the bag making and filling cylinder unit 60 with the above-mentioned cylinder making device. 1, in order to show the outline of the packaging machine, in the cylinder making unit 50, the attachment plate 52 to the vertical bag making and filling machine body, the attachment plate 53 of the bag making and filling cylinder, both plates 52, The two joining columns 54a and 54b are omitted in the vertical direction for assembling 53.
図1で示すように、袋体にヘムシールを施し、袋体内部にエア又はガスの充填を行う縦型製袋充填包装機に適用可能であり、以下では、その実施形態について説明する。縦型製袋充填包装機61においては、帯状包装材Fwが、製筒器6によって湾曲状に曲成され、製袋充填筒40の外側の角状筒袋30の周囲に案内されて下方に走行される。包装材は、製袋充填筒40の外側に配設された一対の紙送りベルト26a,26bが包装材を製袋充填筒40との間に挟みつつ摩擦力で送ることにより送られる。センターシーラ23によって、包装材Fwの両側縁部同士にヒートシールを施すことによって、筒状包装材Ftに成形される。筒状の包装材Ftには、製袋充填筒40の四隅外側において配設されたヘムシーラ25a〜25dによってヘムシール7a〜7dが施される。ヘムシール7a〜7dによって角状袋が補強されて袋の形が保たれる。製袋充填筒40の内側筒体31の内部を通して被包装品が投入され、対向配置されたエンドシーラ24a,24bから成るエンドシーラ24によって筒状包装材Ftを挟み込んで下部エンドシール部3が形成されることによって、被包装品が内部に収容・充填されたヘムシール付き袋包装体1が製造される。 As shown in FIG. 1, the present invention can be applied to a vertical bag making and filling machine that hem-seals a bag body and fills the bag body with air or gas, and an embodiment thereof will be described below. In the vertical bag making and filling machine 61, the belt-like packaging material Fw is bent in a curved shape by the cylinder making device 6 and guided around the rectangular tube bag 30 outside the bag making and filling tube 40 and downward. Traveled. The packaging material is fed by a pair of paper feed belts 26 a and 26 b disposed outside the bag making and filling cylinder 40 and sending the packaging material between the bag making and filling cylinder 40 by a frictional force. The center sealer 23 heat seals both side edges of the packaging material Fw to form the cylindrical packaging material Ft. Hem seals 7a to 7d are applied to the tubular packaging material Ft by hem sealers 25a to 25d disposed outside the four corners of the bag making and filling cylinder 40. The square bag is reinforced by the hem seals 7a to 7d, and the shape of the bag is maintained. A product to be packaged is introduced through the inside of the inner cylinder 31 of the bag-filling cylinder 40, and the lower end seal portion 3 is formed by sandwiching the cylindrical packaging material Ft by the end sealer 24 composed of the end sealers 24a and 24b arranged to face each other. By doing so, the bag packaging body 1 with a hem seal in which the packaged goods are housed and filled is manufactured.
本実施例では、ガス供給パイプが1本であるが、外側角状筒体30と内側筒体31との間に形成された開口部は4箇所あるので、高いガス置換能力が要求される場合、4本まで増設することができる。また4箇所の開口部に挿入するのは、ガス供給パイプに限らず、例えば袋内の残存酸素量を検査する酸素検出器の検体採集用の吸引パイプ等の通路としても使用できる。 In this embodiment, there is one gas supply pipe, but there are four openings formed between the outer rectangular cylinder 30 and the inner cylinder 31, and therefore a high gas replacement capacity is required. Up to 4 can be added. Further, the insertion into the four openings is not limited to the gas supply pipe, but can be used as a passage for a sample collection suction pipe of an oxygen detector for inspecting the amount of oxygen remaining in the bag, for example.
本実施例では、エアまたはガスの充填を行うのに外側角状筒体30と内側筒体31との間に形成された空隙部を、ガス供給パイプ5を挿入する通路として使用したが、ガス供給パイプを使用せず、空隙部をそのままガスの流路として使用することも可能である。 In this embodiment, the gap formed between the outer angle-shaped cylindrical body 30 and the inner tubular member 31 to perform the filling of the air or gas has been used as a passage for inserting the gas supply pipe 5 It is also possible to use the gap as it is as a gas flow path without using the gas supply pipe.
以上説明したように、内外の角状筒体は、横断面での四隅以外は、密に嵌合した状態で示した。これによれば、内側の筒体の内部を可能な限り大きく取ることができ、被包装品の充填に有利である。しかし、図9a)に横断面図を示すように外側筒体30と内側筒体31との間には隙間が存在していても適宜のスペーサ70を介して内側筒体31を外側筒体30に支持させることができる。内側筒体31は、四隅の形状を除いて角筒状と同じような平面状の内面を持つ筒体とした。なお、図9b)、図9c)に横断面図を示すように筒体全体を円形や楕円形の筒体を参考例として示す。更に、図5等では、内側筒体31の内面を清浄に保つために清掃しやすいように、四隅の形状として、滑らかに形成された円弧状にする例を説明したが、これに代えて、図9d)に横断面図を示すように鈍角で折れ曲がった複数の連続する折れ曲がり面(折れ曲がり線は内側筒体31の筒軸線に平行に配置)にしてもよい。更に、下端部蓋材34については、内側筒体31の開口部に対応して、開放した形状となっているが、被包装品の降下を停止させるシャッタ等の開閉機構を付加的に設けてもよいことは明らかである。
As described above, the inner and outer rectangular cylinders are shown in a closely fitted state except for the four corners in the cross section. According to this, the inside of the inner cylinder can be made as large as possible, which is advantageous for filling the packaged products. However, as shown in a cross-sectional view in FIG. 9 a), even if there is a gap between the outer cylinder 30 and the inner cylinder 31, the inner cylinder 31 is connected to the outer cylinder 30 via an appropriate spacer 70. Can be supported . Inner side tube body 31 has a cylindrical body with similar flat inner surface and with the exception of the four corners of the shape prismatic. Incidentally, FIG. 9b), shown as a reference example a circular or elliptical cylindrical body across the cylindrical body as shown a cross-sectional view in FIG. 9c). Furthermore, in FIG. 5 etc., in order to keep it easy to clean the inner surface of the inner cylinder 31, the example of the four corners is formed into a smoothly formed arc shape, but instead, As shown in a cross-sectional view in FIG. 9d), a plurality of continuous bent surfaces (bending lines are arranged in parallel to the cylinder axis of the inner cylinder 31) may be bent at an obtuse angle. Further, the lower end cover member 34 has an open shape corresponding to the opening of the inner cylinder 31, but an opening / closing mechanism such as a shutter for stopping the lowering of the packaged product is additionally provided. It is clear that it is good.
本発明は、角底ガゼット袋や六面をフラット等の包装形態で袋の四隅にヘムシールが施される場合に、良好なヘムシールを可能にせしめるとともに良好な落下特性、メンテナンス性及び高い衛生性を備えた製袋充填筒として用いられる。 The present invention makes it possible to provide a good hem seal when the hem seal is applied to the four corners of the bag in the form of a flat bottom gusset bag or a six-sided flat packaging, etc. Used as a bag-filling cylinder provided.
1 ヘムシール付包装体
3 下部エンドシール部
4 エア源又は充填ガス源に繋がる流体供給管
5 ガス供給パイプ
6 製筒器
7a〜7d ヘムシール
20 縦型製袋充填包装機
22 製袋充填筒
23 センターシーラ
24a,24b エンドシーラ
25a〜25d ヘムシーラ
26a,26b 紙送りベルト
30 外側の筒体
31 内側の筒体
32 内外二重筒体式に構成された製袋充填筒
33 上端部蓋材
33a 蓋材
33b フランジ
33c 取付け孔
34 下端部蓋材
35a〜35d 外筒と内筒の間に形成された開口部
40 ガスの充填を実施する内外二重筒体式に構成された製袋充填筒
50 製筒器ユニット
52 縦型製袋充填包装機本体への取り付け板
53 製袋充填筒の取り付け板
53a 製袋充填筒挿入孔
53b 取付け孔
54a,54b 接合支柱
60 製袋器付製袋充填筒ユニット
61 ガス充填式縦型製袋充填包装機
70a〜70b スペーサ
FW 帯状の包装材
Ft 筒状に成形された包装材
1 Package with hem seal
3 Lower end seal 4 Fluid supply pipe connected to air source or filling gas source
5 Gas supply pipe 6 Cylinder
7a-7d hemseal 20 vertical bag filling and packaging machine
22 Bag making and filling cylinder 23 Center sealer
24a, 24b End sealers 25a-25d Hemsila
26a, 26b Paper feed belt 30 Outer cylinder
31 Inner cylinder 32 Bag making and filling cylinder configured as an inner / outer double cylinder
33 Upper end cover material 33a Cover material
33b Flange 33c Mounting hole
34 Lower end cover members 35a to 35d Opening 40 formed between the outer cylinder and the inner cylinder Bag making and filling cylinder 50 configured as an inner and outer double cylinder for performing gas filling 50 Cylinder making unit
52 Mounting Plate for Vertical Bag Making Filling and Packaging Machine 53 Mounting Plate for Bag Making Filling Tube
53a Bag making and filling cylinder insertion hole 53b Mounting hole
54a, 54b Joining strut 60 Bag making and filling cylinder unit with bag making device 61 Gas filling type vertical bag making filling and packaging machine 70a to 70b Spacer FW Band-shaped packaging material
Ft Packaging material molded into a cylinder
Claims (7)
前記帯状包装材を外側周面に沿わせた湾曲状態で走行案内させつつ筒状包装材を形成するのに用いられる横断面角形の外側筒体と、前記外側筒体の内部に嵌合され且つ前記被包装物が投入される角状筒体であり、四隅の内面を一つ又は複数の円弧状の凹曲面、或いは鈍角で折れ曲がった複数の連続する折れ曲がり面を組合せることで内周面が滑らかに形成された内側筒体との二重構造に構成されていることを特徴とする製袋充填筒構造。 In a vertical bag making and filling and packaging machine that manufactures a rectangular bag package by sequentially repeating the formation of a rectangular bag from a belt-shaped packaging material and the introduction of an article to be packed into the bag,
An outer cylindrical body having a rectangular cross section used to form a cylindrical packaging material while guiding the belt-shaped packaging material in a curved state along the outer peripheral surface; and fitted inside the outer cylindrical body; It is a rectangular cylinder into which the article to be packaged is inserted , and the inner peripheral surface is obtained by combining one or a plurality of arc-shaped concave curved surfaces on the inner surfaces of the four corners, or a plurality of continuous bent surfaces bent at an obtuse angle. bag making filling tube structure characterized by being configured to smoothly formed double structure of the inner cylinder.
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