JP2007331347A - Continuous bag-making machine, cutting blade, continuous bag making process and bag - Google Patents
Continuous bag-making machine, cutting blade, continuous bag making process and bag Download PDFInfo
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- JP2007331347A JP2007331347A JP2006169137A JP2006169137A JP2007331347A JP 2007331347 A JP2007331347 A JP 2007331347A JP 2006169137 A JP2006169137 A JP 2006169137A JP 2006169137 A JP2006169137 A JP 2006169137A JP 2007331347 A JP2007331347 A JP 2007331347A
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- bag
- cutting blade
- cutting
- bags
- continuous bag
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- 238000005520 cutting process Methods 0.000 title claims abstract description 66
- 238000000034 method Methods 0.000 title claims abstract description 21
- 238000004080 punching Methods 0.000 claims abstract description 28
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000002985 plastic film Substances 0.000 description 4
- 238000005452 bending Methods 0.000 description 3
- 239000004744 fabric Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000009958 sewing Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- Bag Frames (AREA)
- Making Paper Articles (AREA)
Abstract
Description
本発明は、長尺の筒状シートを間欠的に送りつつ、袋間端部を接着し、袋間を切断し、所定の長さの袋を連続的に製造する技術に関する。 The present invention relates to a technique for continuously manufacturing a bag having a predetermined length by adhering end portions between bags while intermittently feeding a long cylindrical sheet and cutting between the bags.
買い物袋やゴミ袋またはその他の収容袋として使用できる袋は、長尺の筒状シートを、両外側端部をたたみ込んだガゼット付で、あるいはガゼットなしの状態で、間欠的に送りつつ、袋間端部を接着し、袋間を切断し、所定の長さの袋を連続的に製造する技術（特許文献1参照）によって製造されてきた。その際に、持ち手部分を有する所定の長さの袋に仕上げることは、コの字状の打ち抜き用裁断刃で袋上部の持ち手を成形することによってなされている。ところが、持ち手を成形するための打ち抜き裁断線と袋間切断線とを正確に合わせることが困難であるため、打ち抜き裁断刃の長さを長めにして、切断時に打ち抜き裁断刃が前袋の底部に食い込むようにし、打ち抜き部を確実に除去できるようにしていた。 Bags that can be used as shopping bags, garbage bags, or other storage bags can be used as long, cylindrical sheets with or without gussets that are folded on both outer ends, It has been manufactured by a technique (see Patent Document 1) in which the end portions are bonded, the bags are cut, and bags of a predetermined length are continuously manufactured. At that time, finishing the bag of a predetermined length having a handle portion is performed by forming the handle at the top of the bag with a U-shaped punching cutting blade. However, since it is difficult to accurately match the punching cutting line for forming the handle with the cutting line between the bags, the length of the punching cutting blade is increased so that the punching cutting blade is at the bottom of the front bag at the time of cutting. The punched portion was surely removed.
しかしながら、この場合先行する袋の底部に裁断線端部食い込みが残りテンションがかかるとそこから袋の切り裂けが起こる問題があった。 However, in this case, there is a problem in that the cutting line end bite remains at the bottom of the preceding bag and the bag is torn when the tension is applied.
本発明は、連続製袋装置で製造される前記袋の切り裂け問題を解決することを目的とし、改良された連続製袋装置、裁断刃、連続製袋方法及び袋を提供するものである。 An object of the present invention is to provide an improved continuous bag making apparatus, a cutting blade, a continuous bag making method, and a bag for the purpose of solving the tearing problem of the bag produced by the continuous bag making apparatus.
本発明は、１）長尺の筒状シートを間欠的に送りつつ、前袋の下部及び後袋の上部となる袋間端部に二列のラインシールを施し、該ラインシールの間でシートを切断し、所定の長さの袋を連続的に製造する装置であって、コの字状の打ち抜き用裁断刃で袋上部を裁断して持ち手を有する袋を連続的に製造する連続製袋装置において、前記コの字状の刃の両先端部を曲線状に折り曲げた打ち抜き用裁断刃を設けたことを特徴とする連続製袋装置、２）前記の連続製袋装置に使用される打ち抜き用の裁断刃であって、コの字状の刃の両先端部を曲線状に折り曲げたことを特徴とする打ち抜き用裁断刃、３）長尺の筒状シートを間欠的に送りつつ、前後袋の端部となる部分を二列ラインシールして、コの字状に袋上部分を一部はミシン線に残し切れ目を入れ、ラインシール間でシートを切断し、持ち手を有する所定の長さの袋を連続的に製造する連続製袋方法において、前記コの字状の打ち抜き部の両先端部を曲線状に折り曲げた形状に打ち抜くことを特徴とする連続製袋方法、４）前記の連続製袋方法で製造されることを特徴とする持ち手を有する袋から構成される。 The present invention is as follows: 1) While intermittently feeding a long cylindrical sheet, two rows of line seals are applied to the lower end of the front bag and the upper end portion of the rear bag, and the sheet between the line seals. Is a device that continuously manufactures bags having a predetermined length by continuously cutting bags with a handle by cutting the upper portion of the bag with a U-shaped cutting blade. In the bag apparatus, a continuous bag-making apparatus is provided with a punching cutting blade in which both ends of the U-shaped blade are bent in a curved shape. 2) Used in the continuous bag-making apparatus. A cutting blade for punching, characterized by bending both ends of a U-shaped blade in a curved shape, 3) while intermittently feeding a long cylindrical sheet, Seal the front and rear bag ends in two rows, and leave the upper part of the bag in a U-shape, leaving part of the machine line. In the continuous bag making method for continuously producing a bag having a predetermined length with a handle by cutting the sheet between line seals, both ends of the U-shaped punched portion are curved. 4) A continuous bag-making method characterized by being punched into a bent shape, and 4) a bag having a handle characterized by being manufactured by the continuous bag-making method.
両先端部が曲線状に折り曲げられたコの字状打ち抜き用裁断刃により裁断する本発明の袋の製造技術によれば、出来上がった袋の底部に残る打ち抜き裁断線端部食い込みが曲線状に裁ち抜かれているので、応力集中が避けられ、製造工程上または使用時に切り裂けロスが発生することが大幅に低減できる。さらに、本発明は、高価な位置制御機構を必要とすることなく簡易な手段で打ち抜き部の除去を容易にするとともに袋の破損も防ぐことができる。 According to the bag manufacturing technique of the present invention in which both ends are bent with a U-shaped punching cutting blade bent into a curved shape, the end portion of the punched cutting line remaining on the bottom of the finished bag is cut into a curved shape. Since it is removed, stress concentration can be avoided, and the occurrence of tear loss during the manufacturing process or during use can be greatly reduced. Furthermore, according to the present invention, it is possible to easily remove the punched portion by a simple means without requiring an expensive position control mechanism and to prevent the bag from being damaged.
以下、図面に基づき本発明を実施するための最良の形態を説明する。図１は本発明装置の一実施例の主要部の模式的側面図であり、図２（a）は、図1の装置に用いられる打ち抜き用の裁断刃の平面図、図２（b）は、図２（a）Ｘ部分拡大斜視図である。図３は本発明の製袋方法を説明する模式図、図４は本発明製袋方法で製造されたプラスチックシート袋の斜視図である。 Hereinafter, the best mode for carrying out the present invention will be described with reference to the drawings. FIG. 1 is a schematic side view of the main part of one embodiment of the apparatus of the present invention, FIG. 2 (a) is a plan view of a cutting blade for punching used in the apparatus of FIG. 1, and FIG. FIG. 2 (a) is a partially enlarged perspective view of X. FIG. FIG. 3 is a schematic view for explaining the bag making method of the present invention, and FIG. 4 is a perspective view of the plastic sheet bag manufactured by the bag making method of the present invention.
図１において、１は装置本体、２は装置本体に対し上下動して、原反ロール（図示せず）から間欠的に繰り出される長尺のフィルム６をヒートシールするシーラーで、所定の間隔で設置された平行な二つのシールヘッドを有する。３は装置本体１に対し上下動する打ち抜き用裁断刃である。この打ち抜き用裁断刃３は図２（ａ）、（ｂ）に示すように袋上部中央に結束用の突出部１０を形成すべく、外形コの字状、全体としてはＷ字状のものであり、その両側先端部は内側に即ち中心方向に曲線状に折り曲げられ、下部には鋸歯状の刃を形成した薄い条鋼を折り曲げて形成したものである。４は切断刃であり、本体１に対し上下動し、前述のフィルム６の二つのラインシール（後述）の中間（前後袋間）でフィルム６を切断し、袋をフィルム６から切り離す。なお、５は打ち抜かれたフィルム片部分７を吸引除去するサクション装置である。 In FIG. 1, 1 is an apparatus main body, 2 is a sealer that moves up and down with respect to the apparatus main body and heat-seals a long film 6 that is intermittently drawn from a raw roll (not shown). It has two seal heads installed in parallel. A punching cutting blade 3 moves up and down with respect to the apparatus main body 1. As shown in FIGS. 2 (a) and 2 (b), this punching cutting blade 3 has a U-shaped outer shape, generally W-shaped, so as to form a binding projection 10 at the center of the bag upper portion. The front end portions on both sides are bent inwardly, that is, in a curved shape in the center direction, and the lower portion is formed by bending a thin steel bar having a serrated blade. Reference numeral 4 denotes a cutting blade that moves up and down relative to the main body 1, cuts the film 6 between two line seals (described later) of the film 6 (described later), and separates the bag from the film 6. Reference numeral 5 denotes a suction device for sucking and removing the punched film piece portion 7.
次に、本装置による製袋方法について説明する。原反ロールから送り出された筒状フィルム６は、まずシーラー２でヒートシールされ、２列のラインシールＳ１，Ｓ２が形成された後（図３のＩ）単位長さ即ち袋の長さに相当する長さだけ送り出され、鋸歯状の打ち抜き用の裁断刃３でＷ字状にミシン目状の打ち抜き線が形成される（図３のII）。ついでまた単位長さ送り出されて切断刃４で切断される。切断刃４の切断位置は、図３のII、IIIに示すように２列のシール線Ｓ１、Ｓ２の中間（袋間）に来るようにする。このとき同時にサクション５が働き、裁断された袋上部のＷ字状のフィルム片７が除去され、第３図IV、第４図に示す袋即ちプラスチックシート袋１１が出来上がる。なお、図４において、８は本発明の打ち抜き用裁断刃で成形された袋底部の裁ち抜き部、９は持ち手、１０は結束用突出部である。 Next, the bag making method by this apparatus is demonstrated. The cylindrical film 6 fed from the raw roll is first heat sealed by the sealer 2 and after two rows of line seals S1 and S2 are formed (I in FIG. 3), it corresponds to the unit length, that is, the bag length. A perforated cutting line 3 is formed in a W shape by the saw-toothed cutting blade 3 (II in FIG. 3). Subsequently, the unit length is sent out again and cut by the cutting blade 4. The cutting position of the cutting blade 4 is set to be in the middle (between the bags) between the two rows of seal lines S1 and S2, as indicated by II and III in FIG. At the same time, the suction 5 works to remove the W-shaped film piece 7 at the top of the cut bag, and the bag shown in FIGS. 3 and 4, that is, the plastic sheet bag 11 is completed. In FIG. 4, reference numeral 8 denotes a bag bottom cut-out portion formed by the punching cutting blade of the present invention, 9 denotes a handle, and 10 denotes a binding protrusion.
このようにして原反フィルムを間欠的に送りながら、ヒートシール、打ち抜き裁断、袋間切断を、タイミングを合わせて行い、間欠的に連続して製袋を行う。以上詳述した本発明の製袋装置、製袋方法においては、コの字状の裁断刃３の両先端部を内側に折り曲げているので、その裁断部で前の袋の底部に残留する裁断線端部食い込みは、図４の８に示すように曲線状のものとなり、この部分からの応力集中による袋の切り裂けは劇的に減少する。 Thus, while intermittently feeding the raw film, heat sealing, punching cutting, and bag cutting are performed at the same timing, and bag manufacturing is performed intermittently and continuously. In the bag making apparatus and bag making method of the present invention described in detail above, since both ends of the U-shaped cutting blade 3 are bent inward, the cutting remaining at the bottom of the previous bag at the cutting portion. The line end biting is curvilinear as shown at 8 in FIG. 4, and the tearing of the bag due to the stress concentration from this portion is dramatically reduced.
本発明の連続製袋技術は、原反の幅や生地の厚み、材質、積層の有無を問うことはなく、接着、裁断、切断が可能なものであればどのような材料にも適用できる。また、接着方法は、熱溶着でも接着剤またはその両方によっても、また二列のラインシールに代えて幅広シールによってもよい。 The continuous bag making technique of the present invention does not ask about the width of the original fabric, the thickness of the fabric, the material, and the presence or absence of lamination, and can be applied to any material that can be bonded, cut and cut. Further, the bonding method may be heat welding, adhesive, or both, and a wide seal instead of the two rows of line seals.
コの字状の持ち手部打ち抜き用裁断刃の刃形は、袋体に結束用突出部を付設するデザインの場合には、コの字の中間部に一つまたは複数の突出部を設けてもよい。 The cutting edge of the U-shaped handle part punching blade is designed so that one or more protrusions are provided in the middle of the U-shape when the bag is designed to have a binding protrusion. Also good.
コの字状の打ち抜き部分の除去は、打ち抜き裁断と同時に行ってもよいが、袋間の切断時に行ってもよい。その場合には、打ち抜き部分を該除去工程まで残しておくために、打ち抜き部分の一部をミシン線状態で残しておいてもよい。工程の順番は、底部接着、持ち手部打ち抜き、袋間切断が一般的だが、作業をしやすくするために順番を変えてもよい。 The removal of the U-shaped punched portion may be performed simultaneously with the punching cutting or may be performed at the time of cutting between the bags. In that case, in order to leave the punched portion until the removal step, a part of the punched portion may be left in a sewing machine line state. The order of the processes is generally bottom bonding, handle punching, and bag cutting, but the order may be changed to facilitate the work.
コの字状の打ち抜き用裁断刃の両外端部を曲線状に内側に折り曲げる場合の裁断刃の形及び大きさに関しては、まず、裁断刃は、曲線裁ち抜き部８が同前袋の底部に形成されるように、袋間の切断ラインを超えるような長さとする。次に、同裁断刃の折れ曲がり曲線部を、同前袋の底部に穴が空かないように前袋のラインシール（底シール部）に食い込まないような位置にくる曲線にすると同時に、同曲線部分の角度又は曲率半径は切り裂け原因となる応力集中を緩和するために先鋭でないものとする。さらに、同裁断刃の曲線状に折り曲げて戻ってくる部分は、曲線部が裁ち落とせるように、袋間切断線と少なくとも交差するものとする。要約すると、同裁断刃は、前袋底部に２度交差することによって裁ち抜き部が裁ち抜けるようにすると同時に、前袋底部に穴を空けず、また同曲線部角度は緩やかなものとする。曲線部の位置、形状、大きさ等は場合に応じて適切な大きさと角度又は曲率半径の組合せを求めるようにする。コの字状の打ち抜き用裁断刃の両外端部折り曲げ方向を外側にする場合には、同裁断刃端部の前袋方面の長さが袋間の切断ラインを確実に超えるようなものにすると同時に、同裁断刃の曲線状に折り曲げて戻ってくる部分が、持ち手に裁断線端部が入りそこから切り裂けが起きることがないように、袋間の切断ラインと確実に一致するようにする。 Regarding the shape and size of the cutting blade when both outer ends of the U-shaped punching cutting blade are bent inward in a curved shape, first, the cutting blade has a curved cutting portion 8 at the bottom of the front bag The length is such that it exceeds the cutting line between the bags. Next, the bending curve part of the cutting blade is made to be a curve that is positioned so as not to bite into the line seal (bottom seal part) of the front bag so that there is no hole in the bottom part of the front bag. The angle or the radius of curvature is not sharp to alleviate the stress concentration that causes the tearing. Further, the portion of the cutting blade that is bent and returned is assumed to cross at least the inter-bag cutting line so that the curved portion can be cut off. In summary, the cutting blade crosses the front bag bottom portion twice so that the cut-out portion is cut out, and at the same time, no hole is made in the front bag bottom portion, and the angle of the curved portion is gentle. For the position, shape, size, etc. of the curved portion, an appropriate combination of size and angle or curvature radius is obtained according to circumstances. When the folding direction of both outer ends of the U-shaped cutting blade is outward, make sure that the length of the front bag direction at the end of the cutting blade exceeds the cutting line between the bags. At the same time, make sure that the part of the cutting blade that is bent back is aligned with the cutting line between the bags so that the end of the cutting line does not enter the handle and tears from there. To do.
コの字状の打ち抜き用裁断刃の両外端部の曲線部分によって形成される裁断線は，テンションがかかっても該曲線状のミシン線に沿って切り裂けることにより袋底部に穴が空くことがないように、ミシン線のままに残しておいてもよい。 The cutting line formed by the curved parts of both outer ends of the U-shaped punching cutting blade will be cut along the curved machine line even if tension is applied, resulting in a hole in the bottom of the bag. It is also possible to leave the sewing machine line as it is.
１．連続製袋装置本体
２．シーラー
３．打ち抜き用裁断刃
４．切断刃
５．サクション
６．フィルム
７．打ち抜き用裁断刃で裁断された部分
８．打ち抜き用裁断刃で裁断された袋底部の曲線部
９．持ち手
１０．結束用突出部
１１．プラスチックシート袋
１２．折りたたみ部（ガゼット）
Ｓ１、Ｓ２．ラインシール
1. 1. Continuous bag making apparatus body 2. Sealer 3. Cutting blade for punching 4. Cutting blade Suction 6. Film 7. 7. A portion cut by a cutting blade for punching. 8. Curved portion at the bottom of the bag cut by a cutting blade for punching Handle 10. Bundling protrusion 11. Plastic sheet bag12. Folding part (Gazette)
S1, S2. Line seal
Claims (4)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2006169137A JP2007331347A (en) | 2006-06-19 | 2006-06-19 | Continuous bag-making machine, cutting blade, continuous bag making process and bag |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2006169137A JP2007331347A (en) | 2006-06-19 | 2006-06-19 | Continuous bag-making machine, cutting blade, continuous bag making process and bag |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2007331347A true JP2007331347A (en) | 2007-12-27 |
Family
ID=38931272
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2006169137A Pending JP2007331347A (en) | 2006-06-19 | 2006-06-19 | Continuous bag-making machine, cutting blade, continuous bag making process and bag |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2007331347A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108437554A (en) * | 2018-03-30 | 2018-08-24 | 南京沪江复合材料股份有限公司 | A kind of automatic bidirectional jumbo bag bead cutter |
| JP7012297B1 (en) * | 2021-11-30 | 2022-01-28 | 日星産業株式会社 | Bag manufacturing equipment and bag manufacturing method |
-
2006
- 2006-06-19 JP JP2006169137A patent/JP2007331347A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108437554A (en) * | 2018-03-30 | 2018-08-24 | 南京沪江复合材料股份有限公司 | A kind of automatic bidirectional jumbo bag bead cutter |
| JP7012297B1 (en) * | 2021-11-30 | 2022-01-28 | 日星産業株式会社 | Bag manufacturing equipment and bag manufacturing method |
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