JP2008179035A - Device for forming zipper end part - Google Patents

Device for forming zipper end part Download PDF

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JP2008179035A
JP2008179035A JP2007013622A JP2007013622A JP2008179035A JP 2008179035 A JP2008179035 A JP 2008179035A JP 2007013622 A JP2007013622 A JP 2007013622A JP 2007013622 A JP2007013622 A JP 2007013622A JP 2008179035 A JP2008179035 A JP 2008179035A
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zipper
zipper tape
crushing
tape
tension
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JP4964601B2 (en
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Takashi Ogasawara
高志 小笠原
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Tokyo Automatic Machinery Works Ltd
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Tokyo Automatic Machinery Works Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a device for forming a zipper end part which can appropriately form the part by preventing the occurrence of a hole or breakage when the zipper end part is formed by crushing it thinly. <P>SOLUTION: The zipper end part forming device 40, having a molten/press-bonded crushed part produced by crushing an engaged projection and an engaged recess, at a position to be the end part of the zipper formed by cutting a zipper tape G in a prescribed length is provided with an ultrasonic end part crushing device 43 which has an ultrasonic head 43a, an anvil 43b which are arranged oppositely with the delivered zipper tape G placed between them and applies ultrasonic oscillation to the zipper tape G to form the crushed part, and a zipper supply device which applies constant tension to the zipper tape G when the zipper tape G is delivered and supplies the zipper tape G so that tension is not applied to at least the crushed part when the crushed part is formed. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

本発明は、ジッパテープを所定の長さで切断して形成されるジッパの端部となる位置に、ジッパの開封動作を止めるための押し潰し部を形成するジッパ端部形成装置に関する。   The present invention relates to a zipper end forming apparatus for forming a crushing portion for stopping an opening operation of a zipper at a position to be an end portion of a zipper formed by cutting a zipper tape at a predetermined length.

従来、着脱可能に嵌合する線状の嵌合凸部と嵌合凹部を有するジッパを備えて、開閉可能に形成されたジッパ付き袋が、食品などの内容物を密閉状態で収容する袋として多用されている。また、この種のジッパ付き袋のジッパには、例えば特許文献1に開示されるように、開閉可能な開閉部(嵌合凸部及び嵌合凹部が着脱可能に嵌合する嵌合部)の両端部側、すなわちジッパの両端部に、嵌合凸部と嵌合凹部を嵌合状態で圧縮したかしめ部と、このかしめ部の周囲から両端にかけて溶融圧着した溶融部とを備えて形成したものがある。このジッパにおいては、袋の開封時にかしめ部で開封動作が止められ、且つ溶融部でジッパが強固に固化されていることで、開封時の負荷をかしめ部と溶融部で順次低減することができ、開封動作に伴ってジッパ端部に破断が生じることを防止している。   Conventionally, a zippered bag that is provided with a zipper having a linear fitting convex part and a fitting concave part that can be detachably fitted and that can be opened and closed is a bag for containing contents such as food in a sealed state. It is used a lot. Further, as disclosed in, for example, Patent Document 1, a zipper of a bag with this type of zipper has an opening / closing portion that can be opened and closed (a fitting portion in which a fitting convex portion and a fitting concave portion are detachably fitted). Formed on both end sides, that is, on both ends of the zipper, with a crimping portion in which the fitting convex portion and the fitting concave portion are compressed in a fitted state, and a melted portion that is melt-pressed from the periphery of the crimping portion to both ends There is. In this zipper, the opening operation is stopped at the caulking portion when the bag is opened, and the zipper is firmly solidified at the melting portion, so that the load during opening can be sequentially reduced at the caulking portion and the melting portion. The zipper end is prevented from being broken with the opening operation.

そして、このようなジッパ付き袋は、例えば特許文献1に開示される縦形製袋充填包装機によって、フィルムリールから繰出された帯状のフィルムを筒状に形成し、端部を縦シーラや横シーラでそれぞれ加熱シールして形成される。また、このとき、縦シーラで縦方向に重なる両端部を、横シーラで開口する下端部をそれぞれシールしてフィルムが袋状に形成された段階で、開口する上端部側から内容物がホッパを通じて自動的に袋に充填され、最後にこの上端部を横シーラでシールするとともに切断し、内容物を密閉状態で収容した袋が形成される。一方、ジッパは、フィルムリールから繰出されたフィルムが筒状に形成される前段で、フィルムの一面(袋の内面となる一面)に仮溶着して取り付けられ、縦形製袋充填包装機のジッパ本付けヒータによって本付けされる。   Such a zippered bag is formed by, for example, forming a strip-like film fed out from a film reel into a cylindrical shape by a vertical bag making filling and packaging machine disclosed in Patent Document 1, and end portions of which are vertical sealers and horizontal sealers. Each of them is formed by heat sealing. At this time, both ends of the vertical sealer that overlap in the vertical direction are sealed at the lower end that opens with the horizontal sealer, and the film is formed into a bag shape. The bag is automatically filled, and finally, the upper end is sealed with a horizontal sealer and cut to form a bag containing the contents in a sealed state. On the other hand, the zipper is a pre-stage where the film fed from the film reel is formed into a cylindrical shape, and is attached by temporarily welding to one side of the film (one side which becomes the inner surface of the bag). It is attached by an attached heater.

ここで、ジッパ端部形成装置は、ジッパ供給装置と超音波端部押し潰し装置で構成されている。ジッパ供給装置は、ジッパテープが巻き回されたジッパリールと、フィルムの一面に沿って進退可能に設けられ、ジッパテープの先端側を把持してジッパテープの繰出し及び切断刃でジッパテープから切り離されたジッパの搬送を行なうジッパ搬送手段と、繰出されたジッパテープに一定のテンションを掛けるテンション付与手段(テンションローラ)とを備えて構成されている。また、超音波端部押し潰し装置は、アンビルと超音波ヘッドを備え、超音波を発振してジッパテープにかしめ部及び溶融部(押し潰し部)を形成する。
特開2006−282189号公報
Here, the zipper end portion forming device includes a zipper supply device and an ultrasonic end crushing device. The zipper supply device is provided so as to be able to advance and retreat along the one side of the film, the zipper reel around which the zipper tape is wound, feeds the zipper tape and feeds the zipper separated from the zipper tape by the cutting blade. The apparatus includes a zipper conveying means for performing and a tension applying means (tension roller) for applying a constant tension to the fed zipper tape. The ultrasonic end crushing device includes an anvil and an ultrasonic head, and oscillates ultrasonic waves to form a caulking portion and a melting portion (crushing portion) on the zipper tape.
JP 2006-282189 A

しかしながら、上記の特許文献1に開示されたジッパ端部形成装置においては、超音波押し潰し装置による押し潰し時(押し潰し部の形成時)に、テンション付与手段によってジッパテープにテンションが掛けられていて、ジッパテープが繰出し方向上流側(テンション付与手段側)に引っ張られた状態で押し潰し部を形成することになる。また、このとき、ジッパテープの断面形状が一様でないため、押し潰し部には、テンションが不均衡に作用する。   However, in the zipper end forming apparatus disclosed in the above-mentioned Patent Document 1, tension is applied to the zipper tape by the tension applying means during crushing by the ultrasonic crushing apparatus (when the crushing part is formed). The crushing portion is formed in a state where the zipper tape is pulled upstream in the feeding direction (tension applying means side). At this time, since the cross-sectional shape of the zipper tape is not uniform, tension acts on the crushed portion in an unbalanced manner.

そして、ある程度ジッパテープが厚い場合にはテンションの影響は小さいが、薄いジッパテープを用いる場合や押し潰し部の厚さを薄く形成する場合、押し潰し部(ジッパ端部)を薄く形成するほどに、押し潰し時にテンションの影響が大きくなり、穴や破断が発生しやすくなってしまう。このため、ジッパテープの厚さ(ジッパ端部の厚さ)をある程度厚くせざるを得ず、袋にジッパを溶着する際にジッパ端部のシールが緊密に行なえず、袋の密封性を十分に高めることができないという問題があった。   When the zipper tape is thick to some extent, the influence of the tension is small, but when using a thin zipper tape or when forming the crushing part thinly, the pushing part becomes so thin that the crushing part (zipper end part) is formed thinly. When crushing, the influence of tension becomes large, and holes and breaks are likely to occur. For this reason, the thickness of the zipper tape (thickness at the end of the zipper) must be increased to some extent, and when the zipper is welded to the bag, the end of the zipper cannot be tightly sealed, so that the bag is sufficiently sealed. There was a problem that it could not be raised.

さらに、ジッパテープの嵌合凸部と嵌合凹部が厚い場合には、嵌合凸部と嵌合凹部を強固にかしめて好適なかしめ部を形成することができるが、ジッパテープの嵌合凸部と嵌合凹部が薄い場合には、嵌合凸部と嵌合凹部を強固に圧着することが難しく、不十分なかしめ状態でかしめ部が形成されてしまう。そして、このように中途半端なかしめ部が形成された場合には、開封時にかしめ部が開いてしまい溶融部に大きな負荷が作用して破断を招いたり、また、かしめ部の嵌合凸部と嵌合凹部(嵌合部)は圧縮によって壊れているため、一度開いたかしめ部を再度嵌合させることができず、袋の密封性が低下するという問題があった。   Furthermore, when the fitting convex part and the fitting concave part of the zipper tape are thick, the fitting convex part and the fitting concave part can be firmly caulked to form a suitable caulking part. When the fitting concave portion is thin, it is difficult to firmly press the fitting convex portion and the fitting concave portion, and the caulking portion is formed in an insufficiently caulked state. And, when the half-way caulking part is formed in this way, the caulking part opens at the time of opening and a large load acts on the melted part to cause breakage, or the fitting convex part of the caulking part and Since the fitting concave portion (fitting portion) is broken by compression, the crimped portion that has been once opened cannot be fitted again, and there is a problem that the sealing performance of the bag is lowered.

本発明は、上記事情を鑑み、薄く押し潰してジッパ端部を形成する場合においても、穴や破断の発生を防止して好適に形成可能なジッパ端部形成装置を提供することを目的とする。   The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a zipper end forming apparatus that can be suitably formed by preventing occurrence of holes and breakage even when forming a zipper end by thinly crushing. .

上記の目的を達するために、この発明は以下の手段を提供している。   In order to achieve the above object, the present invention provides the following means.

本発明のジッパ端部形成装置は、雄側ジッパテープの嵌合凸部と雌側ジッパテープの嵌合凹部とを着脱可能に嵌合させてなるジッパテープに対し、該ジッパテープを所定の長さで切断して形成されるジッパの端部となる位置に、前記嵌合凸部と前記嵌合凹部を押し潰して前記雄側ジッパテープと前記雌側ジッパテープを溶着した押し潰し部を形成するジッパ端部形成装置であって、繰出される前記ジッパテープを間に対向配置された超音波ヘッドとアンビルを備え、前記ジッパテープに超音波を発振して前記押し潰し部を形成する超音波端部押し潰し装置と、前記ジッパテープの繰出し時には、前記ジッパテープに一定のテンションを掛け、前記押し潰し部の形成時には、少なくとも前記押し潰し部にテンションが掛からないように前記ジッパテープを供給するジッパ供給装置とを備えることを特徴とする。   The zipper end forming apparatus of the present invention cuts the zipper tape at a predetermined length with respect to a zipper tape in which the fitting convex portion of the male zipper tape and the fitting concave portion of the female zipper tape are detachably fitted. A zipper end forming device for forming a crushing portion by crushing the fitting convex portion and the fitting concave portion and welding the male side zipper tape and the female side zipper tape at a position to be an end portion of the zipper formed by An ultrasonic head crushing device comprising an ultrasonic head and an anvil that are arranged to face each other with the zipper tape to be fed out, and oscillating ultrasonic waves in the zipper tape to form the crushing portion; When the zipper tape is fed out, a certain tension is applied to the zipper tape, and when the crushing portion is formed, the zipper tape is at least not applied to the crushing portion. Characterized in that it comprises a zipper supply device for supplying a tape.

この発明においては、超音波端部押し潰し装置による押し潰し部の形成時に、すなわち超音波で雄側ジッパテープと雌側ジッパテープを押し潰して溶着させる際に、テンションを掛けずに押し潰し部を形成できるため、薄いジッパテープを用いたり、押し潰し部の厚さを薄く形成する場合においても、穴が開いたり、破断が生じることを防止できる。   In this invention, when forming the crushing portion by the ultrasonic end crushing device, that is, when crushing and welding the male zipper tape and the female zipper tape with ultrasonic waves, the crushing portion is formed without applying tension. Therefore, even when a thin zipper tape is used or when the thickness of the crushed portion is thin, it is possible to prevent the formation of a hole or breakage.

また、本発明のジッパ端部形成装置において、前記超音波端部押し潰し装置は、前記押し潰し部の前記嵌合凸部と前記嵌合凹部が一体に溶着される厚さまで前記ジッパテープを押し潰すことが望ましい。   Further, in the zipper end forming device of the present invention, the ultrasonic end crushing device crushes the zipper tape to a thickness at which the fitting convex portion and the fitting concave portion of the crushing portion are integrally welded. It is desirable.

この発明においては、押し潰し部の雄側ジッパテープと雌側ジッパテープを確実に一体に溶着できるため、ジッパの開封時に押し潰し部の嵌合凸部と嵌合凹部が開いて破損することを確実に防止できる。   In this invention, since the male zipper tape and the female zipper tape of the crushing portion can be welded together with certainty, it is ensured that when the zipper is opened, the fitting convex portion and the fitting concave portion of the crushing portion open and break. Can be prevented.

さらに、本発明のジッパ端部形成装置において、前記ジッパ供給装置は、前記超音波端部押し潰し装置の前記ジッパテープの繰出し方向上流側に設けられて前記ジッパテープにテンションを掛けるテンション付与手段と、該テンション付与手段と前記超音波端部押し潰し装置の間に位置する前記ジッパテープを保持して、前記テンション付与手段からのテンションを遮断するテンション遮断手段とを備えることがより望ましい。   Further, in the zipper end forming device of the present invention, the zipper supply device is provided on the upstream side in the feeding direction of the zipper tape of the ultrasonic end crushing device, and tension applying means for applying tension to the zipper tape, It is more preferable to include a tension blocking unit that holds the zipper tape positioned between the tension applying unit and the ultrasonic edge crushing device and blocks the tension from the tension applying unit.

この発明においては、テンション遮断手段によってジッパテープのテンション状態を調整することができ、超音波端部押し潰し装置による押し潰し部の形成時に、確実にテンションを掛けずに押し潰し部を形成することが可能になる。また、テンション遮断手段がテンション付与手段と超音波端部押し潰し装置の間に配置されているため、押し潰し時に、繰出し方向上流側のジッパテープのテンション状態を維持することができる。これにより、押し潰しを終えて再度ジッパテープの繰出し動作に移行する際に、繰出されたジッパテープを一定のテンション状態に迅速に戻すことができ、確実に安定した状態で繰出しを行なうことが可能になる。   In this invention, the tension state of the zipper tape can be adjusted by the tension blocking means, and when the crushing part is formed by the ultrasonic end crushing device, the crushing part can be formed without applying tension reliably. It becomes possible. Further, since the tension blocking means is disposed between the tension applying means and the ultrasonic end crushing device, the tension state of the zipper tape on the upstream side in the feeding direction can be maintained during crushing. As a result, when the crushing is finished and the zipper tape is transferred to the feeding operation again, the fed zipper tape can be quickly returned to a constant tension state, and the feeding can be performed reliably and stably. .

また、本発明のジッパ端部形成装置においては、前記ジッパ供給装置に、前記ジッパテープを繰出すための第1駆動手段と第2駆動手段が、前記超音波端部押し潰し装置を挟んで前記ジッパテープの繰出し方向上流側と下流側にそれぞれ設けられるとともに、前記第1駆動手段と前記第2駆動手段の駆動を制御して前記ジッパテープのテンションを調整する制御装置が設けられてもよい。   Further, in the zipper end forming apparatus of the present invention, the zipper tape includes a first driving means and a second driving means for feeding the zipper tape to the zipper supply apparatus, with the ultrasonic end crushing device being sandwiched between the zipper tape and the zipper tape. And a control device for adjusting the tension of the zipper tape by controlling the driving of the first driving means and the second driving means.

この発明においては、制御装置により第1駆動手段と第2駆動手段の駆動を制御することによってジッパテープのテンション状態を調整することができ、確実にテンションを掛けずに押し潰し部を形成することが可能になる。   In this invention, the tension state of the zipper tape can be adjusted by controlling the drive of the first drive means and the second drive means by the control device, and the crushing portion can be formed without applying tension. It becomes possible.

さらに、本発明のジッパ端部形成装置においては、前記テンション遮断手段が、前記超音波端部押し潰し装置の前記繰出し方向上流側に、前記ジッパテープを巻き掛けて設けられた上流側ローラと、該上流側ローラに向けて進退可能に設けられ、進出時に前記上流側ローラとともに前記ジッパテープを挟持して保持する保持ストッパとを備えて構成されていることがさらに望ましい。   Further, in the zipper end forming device of the present invention, the tension blocking means includes an upstream roller provided by winding the zipper tape on the upstream side in the feeding direction of the ultrasonic end crushing device, It is further desirable to include a holding stopper that is provided so as to be able to advance and retreat toward the upstream roller and holds the zipper tape while holding the zipper tape together with the upstream roller.

この発明においては、上流側ローラに向けて保持ストッパを進出させることでジッパテープを挟持してテンションを遮断することができるため、簡単な構造で確実にジッパテープのテンションを遮断することができる。また、保持ストッパを退避させるという簡便な操作で、繰出されたジッパテープを一定のテンション状態に迅速に戻すことができる。これにより、安価で安定した運転を実現することができる。   In this invention, since the zipper tape can be clamped and the tension can be interrupted by advancing the holding stopper toward the upstream roller, the tension of the zipper tape can be reliably interrupted with a simple structure. Further, the fed zipper tape can be quickly returned to a certain tension state by a simple operation of retracting the holding stopper. Thereby, an inexpensive and stable operation can be realized.

本発明のジッパ端部形成装置によれば、薄いジッパテープを用いたり、ジッパ端部の厚さを薄く形成できるため、袋にジッパを溶着する際のジッパ端部のシールが緊密に行なえ、袋の密封性を高めることができる。また、このようにジッパ端部を薄く形成する場合においても、ジッパテープの押し潰し部の形成時に穴や破断が発生することがなく、且つジッパ端部が強固に形成されるため、ジッパ及びこのジッパを備える袋の良品率を向上させることができる。   According to the zipper end forming apparatus of the present invention, since a thin zipper tape can be used or the thickness of the zipper end can be reduced, the zipper end can be tightly sealed when the zipper is welded to the bag. Sealability can be improved. Further, even when the zipper end portion is formed thin in this way, there is no occurrence of a hole or breakage when forming the crushing portion of the zipper tape, and the zipper end portion is firmly formed. The yield of non-defective bags can be improved.

以下、図1から図7を参照し、本発明の第1実施形態に係るジッパ端部形成装置について説明する。本実施形態は、ジッパ端部を好適に薄く形成することが可能なジッパ端部形成装置に関するものである。   Hereinafter, a zipper end forming apparatus according to a first embodiment of the present invention will be described with reference to FIGS. The present embodiment relates to a zipper end forming apparatus that can form a zipper end suitably thin.

はじめに、本実施形態のジッパ端部形成装置を用いて製造されるジッパ付き袋について説明する。本実施形態のジッパ付き袋1は、図1に示すように、縦方向の両端部を重ねて溶着した縦シール部2と、その上下端部をそれぞれ横方向に溶着した上部横シール部3a及び下部横シール部3bとを備えた、いわゆる三方シールによって形成されたものである。   First, a zippered bag manufactured using the zipper end forming apparatus of the present embodiment will be described. As shown in FIG. 1, the zippered bag 1 of the present embodiment includes a vertical seal portion 2 in which both ends in the vertical direction are overlapped and welded, an upper horizontal seal portion 3 a in which the upper and lower ends are welded in the horizontal direction, and It is formed by a so-called three-way seal provided with a lower lateral seal portion 3b.

また、本実施形態のジッパ付き袋(袋)1には、上部横シール部3aの下方の上端部側に、ジッパ4が取り付けられている。このジッパ4は、図2から図4に示すように、雄側ジッパ片(雄側ジッパテープ)5と雌側ジッパ片(雌側ジッパテープ)6からなり、雄側ジッパ片5は、横方向に線状に延びる嵌合凸部5aを備えるとともに、この嵌合凸部5aを挟んで縦方向両側にシート状のフランジ部5bを備えて形成されている。一方、雌側ジッパ片6は、横方向に線状に延びる嵌合凹部6aを備えるとともに、この嵌合凹部6aの縦方向上側にフランジ部6bを備えて形成されている。そして、これら雄側ジッパ片5と雌側ジッパ片6は、袋1の対向する内面のそれぞれにフランジ部5b、6bを溶着し、対向配置して取り付けられている。また、このジッパ4は、嵌合凸部5aと嵌合凹部6aが着脱可能に嵌合することで嵌合部(開閉部)7が形成され、横方向両端部(ジッパ端部)に、嵌合凸部5aと嵌合凹部6aを嵌合状態で例えば半円柱状(平面視長方形状)に圧縮したかしめ部8と、かしめ部8の周囲から両端にかけて、かしめ部8よりも扁平で幅広の略半楕円形板状に雄側ジッパ片5と雌側ジッパ片6の端部が一体に溶融圧着された押し潰し部(溶融部)9とを備えて形成されている。   Moreover, the zipper 4 is attached to the bag (bag) 1 with a zipper of this embodiment at the upper end part side below the upper horizontal seal part 3a. 2 to 4, the zipper 4 is composed of a male zipper piece (male zipper tape) 5 and a female zipper piece (female zipper tape) 6. The male zipper piece 5 is lined in the horizontal direction. And a sheet-like flange portion 5b on both sides in the vertical direction with the fitting convex portion 5a interposed therebetween. On the other hand, the female zipper piece 6 includes a fitting recess 6a extending linearly in the lateral direction, and a flange portion 6b on the upper side in the vertical direction of the fitting recess 6a. The male side zipper piece 5 and the female side zipper piece 6 are attached to the inner surfaces of the bag 1 facing each other by welding flange portions 5b and 6b. Further, the zipper 4 has a fitting portion (opening / closing portion) 7 formed by fitting the fitting convex portion 5a and the fitting concave portion 6a in a detachable manner, and is fitted to both lateral end portions (zipper end portions). The caulking portion 8 compressed into, for example, a semi-cylindrical shape (rectangular shape in plan view) in a fitted state with the mating convex portion 5a and the fitting concave portion 6a, and flatter and wider than the caulking portion 8 from the periphery to both ends The male side zipper piece 5 and the female side zipper piece 6 are formed in a substantially semi-elliptical plate shape with a crushing portion (melting portion) 9 in which end portions of the male side zipper piece 6 are integrally melt bonded.

ここで、本実施形態におけるジッパ4の押し潰し部9は、嵌合凸部5aと嵌合凹部6aが一体に溶着される厚さまで薄く形成されている。このように押し潰し部9が形成されることで、雄側ジッパ片5と雌側ジッパ片6の端部同士が強固に一体形成されている。そして、このようなジッパ4を備えた図1に示す袋1は、ジッパ4の下方に例えば粉末状の食品などの内容物が収容されており、ジッパ4と上部横シール部3aの間を横方向に切断して上部横シール部3aを取り除くことで、ジッパ4の開閉部7を開いて開封することができ、開閉部7の嵌合凸部5aと嵌合凹部6aを再度嵌合させることで内容物を再度密封することができる。また、開封時には、かしめ部8でジッパ4の開封動作が止められ、且つ押し潰し部9でジッパ4がより強固に固化されているため、確実に開封時の負荷をかしめ部8と押し潰し部9で順次低減することができ、開封動作に伴ってジッパ端部に破損が生じることがない。さらに、押し潰し部9が薄く形成されてジッパ端部が袋1の内面に緊密にシールされているため、この点からも、開封動作に伴うジッパ端部の破損が防止されている。   Here, the crushing portion 9 of the zipper 4 in the present embodiment is formed thin to a thickness at which the fitting convex portion 5a and the fitting concave portion 6a are welded together. By forming the crushing portion 9 in this manner, the end portions of the male side zipper piece 5 and the female side zipper piece 6 are firmly formed integrally. The bag 1 shown in FIG. 1 provided with such a zipper 4 contains contents such as powdered food under the zipper 4, and the side between the zipper 4 and the upper horizontal seal portion 3 a is stored. By cutting in the direction and removing the upper horizontal seal part 3a, the opening / closing part 7 of the zipper 4 can be opened and opened, and the fitting convex part 5a and the fitting concave part 6a of the opening / closing part 7 are fitted again. The contents can be sealed again. Further, at the time of opening, since the opening operation of the zipper 4 is stopped by the caulking portion 8 and the zipper 4 is solidified more firmly by the crushing portion 9, the load at the time of opening is surely applied to the caulking portion 8 and the crushing portion. 9 can be reduced sequentially, and the zipper end portion is not damaged with the opening operation. Further, since the crushing portion 9 is formed thin and the end of the zipper is tightly sealed to the inner surface of the bag 1, damage to the end of the zipper accompanying the opening operation is also prevented from this point.

ついで、上記のように構成した本実施形態のジッパ付き袋1を製造する方法について説明する。本実施形態のジッパ付き袋1は、図5に示すようなジッパ付き袋の製造装置を用いて製造され、本実施形態において、このジッパ付き袋の製造装置Aは、縦形製袋充填包装機Bとジッパ製造装置Cとを備えて構成されている。   Next, a method for manufacturing the zippered bag 1 of the present embodiment configured as described above will be described. The zippered bag 1 of this embodiment is manufactured using a zippered bag manufacturing apparatus as shown in FIG. 5. In this embodiment, the zippered bag manufacturing apparatus A is a vertical bag making filling and packaging machine B. And a zipper manufacturing apparatus C.

縦形製袋充填包装機Bは、所定の幅寸法を備えた帯状のフィルムFが巻き回されたフィルムリール20と、フィルムリール20から繰出されたフィルムFが巻き掛けられて所定の方向に搬送するようにフィルムFを支持する複数の固定ロール21と、固定ロール21を介して繰出されたフィルムFを袋状に形成しつつ内容物を充填する製袋充填包装装置22とを備えて構成されている。   The vertical bag making and packaging machine B is wound with a film reel 20 around which a belt-like film F having a predetermined width is wound, and a film F fed out from the film reel 20 is wound around and conveyed in a predetermined direction. In this way, a plurality of fixed rolls 21 that support the film F and a bag making filling and packaging device 22 that fills the contents while forming the film F fed out through the fixed rolls 21 in a bag shape are configured. Yes.

製袋充填包装装置22は、円筒状あるいは角筒状に形成され、上下方向(縦方向)に配設された製袋チューブ23と、製袋チューブ23の上端に繋げられ、内容物を製袋チューブ23の内孔を通じて袋1に充填するためのホッパ24と、固定ロール21によって水平方向(横方向)に繰出されたフィルムFを製袋チューブ23の外周に巻き回すように案内する製袋ガイド25と、製袋チューブ23の下端側の外周面に対向して配置され、フィルムFを連続的に下方に搬送し、フィルムFの繰出しを行う繰出しベルト26とを備えて構成されている。さらに、製袋充填包装装置22には、製袋チューブ23の下端側の外周面に対向し縦方向に配設された縦シーラ27と、製袋チューブ23の下方に横方向に配設された横シーラ28と、横シーラ28の下流側に並設され、フィルムFに仮付けされたジッパ4を本付けするためのジッパ本付けヒータ29とが具備されている。   The bag making filling and packaging device 22 is formed in a cylindrical shape or a rectangular tube shape, and is connected to a bag making tube 23 arranged in the vertical direction (longitudinal direction) and an upper end of the bag making tube 23, and the contents are made into bags. A hopper 24 for filling the bag 1 through the inner hole of the tube 23 and a bag making guide for guiding the film F fed in the horizontal direction (lateral direction) by the fixed roll 21 to be wound around the outer periphery of the bag making tube 23 25 and an outer peripheral surface on the lower end side of the bag-making tube 23, and a feeding belt 26 that continuously conveys the film F downward and feeds the film F. Further, in the bag making filling and packaging device 22, a vertical sealer 27 arranged in the vertical direction facing the outer peripheral surface on the lower end side of the bag making tube 23, and arranged in the horizontal direction below the bag making tube 23. A horizontal sealer 28 and a zipper main attachment heater 29 for fixing the zipper 4 temporarily attached to the film F are provided in parallel to the downstream side of the horizontal sealer 28.

このように構成した縦形製袋充填包装機Bにおいては、フィルムFが、繰出しベルト26の駆動によりフィルムリール20から繰出され、製袋ガイド25によって案内されて製袋チューブ23の外周面に巻き回されるとともに筒状に形成される。そして、さらに下方に搬送されるとともに、筒状のフィルムFの縦方向に重ねられた両端部が縦シーラ27によって加熱溶着され縦シール部2が形成される。ついで、さらに下方に搬送されると、横シーラ28によって下部横シール部3bが形成され、筒状のフィルムFが袋状に形成される。この段階で、ホッパ24から所定量の内容物が製袋チューブ23の内孔に供給され、この内孔を通じて袋1内に内容物が充填される。そして、繰出しベルト26によって1つの袋分(袋1の縦方向の長さ分)、フィルムFが下方に搬送されると、横シーラ28によって上部横シール部3aが形成される。また、これと同時に、袋1の内面に仮付けされているジッパ4は、雄側ジッパ片5と雌側ジッパ片6のフランジ部5b、6b、及びジッパ端部に形成した押し潰し部9がジッパ本付けヒータ29によって袋1の内面に完全に溶着されてシールされる。そして、このように上部横シール部3aの形成とジッパ4の本付けを終えた袋1は、横シーラ28に設けられた切断刃30によって上部横シール部3aの上方が横方向に切断されて切り離され、これにより内容物を密閉状態で収容したジッパ付き袋1が製造される。なお、横シーラ28による上部横シール部3aの形成時には、この袋1の上方に位置して縦シール部2が形成された筒状のフィルムFに、下部横シール部3bが同時に形成される。すなわち、横シーラ28は、下方の袋1に上部横シール部3aを形成すると同時に上方の袋1の下部横シール部3bを形成する。そして、このように同時形成された下方の袋1の上部横シール部3aと上方の袋1の下部横シール部3bの間が切断刃30で切断されることで下方の袋1が分離され、フィルムFの搬送とともに袋1が連続的に製造されてゆく。   In the vertical bag making and filling machine B configured as described above, the film F is fed from the film reel 20 by the driving of the feeding belt 26, guided by the bag making guide 25, and wound around the outer peripheral surface of the bag making tube 23. And formed into a cylindrical shape. And while conveying further below, the both ends overlapped in the vertical direction of the cylindrical film F are heat-welded by the vertical sealer 27, and the vertical seal | sticker part 2 is formed. Subsequently, when it is further conveyed downward, the lower horizontal seal portion 3b is formed by the horizontal sealer 28, and the cylindrical film F is formed in a bag shape. At this stage, a predetermined amount of contents are supplied from the hopper 24 to the inner hole of the bag making tube 23, and the contents are filled into the bag 1 through the inner hole. When the film F is conveyed downward by one bag (the length in the vertical direction of the bag 1) by the feeding belt 26, the upper horizontal seal portion 3a is formed by the horizontal sealer 28. At the same time, the zipper 4 temporarily attached to the inner surface of the bag 1 has the flange portions 5b and 6b of the male zipper piece 5 and the female zipper piece 6, and the crushing portion 9 formed at the end of the zipper. The zipper permanent heater 29 is completely welded and sealed to the inner surface of the bag 1. After the formation of the upper horizontal seal portion 3a and the permanent attachment of the zipper 4 in this manner, the upper portion of the upper horizontal seal portion 3a is cut in the lateral direction by the cutting blade 30 provided on the horizontal sealer 28. The bag 1 with a zipper which accommodated the content by sealing | separating by this is manufactured. In addition, when the upper horizontal seal portion 3a is formed by the horizontal sealer 28, the lower horizontal seal portion 3b is simultaneously formed on the tubular film F formed above the bag 1 and having the vertical seal portion 2 formed thereon. That is, the horizontal sealer 28 forms the upper horizontal seal portion 3a in the lower bag 1 and simultaneously forms the lower horizontal seal portion 3b of the upper bag 1. Then, the lower bag 1 is separated by cutting with the cutting blade 30 between the upper horizontal seal portion 3a of the lower bag 1 and the lower horizontal seal portion 3b of the upper bag 1 formed simultaneously in this way, As the film F is conveyed, the bags 1 are continuously manufactured.

一方、フィルムFにジッパ4を仮付けするジッパ製造装置Cは、図5に示すように、ジッパ端部形成装置40と、ジッパ仮付け装置45とを備えて構成されている。また、ジッパ端部形成装置40は、ジッパ供給装置42と、超音波端部押し潰し装置43と、切断刃52とを備え、ジッパ仮付け装置45は、フィルムFの一面側に配置された仮付けヒータ(図示せず)とフィルムFの他面側に配置されたヒータ受け45aとを備えて構成されている。   On the other hand, the zipper manufacturing apparatus C for temporarily attaching the zipper 4 to the film F includes a zipper end forming apparatus 40 and a zipper temporary attaching apparatus 45 as shown in FIG. The zipper end forming device 40 includes a zipper supply device 42, an ultrasonic end crushing device 43, and a cutting blade 52, and the zipper temporary attaching device 45 is temporarily mounted on one surface side of the film F. An additional heater (not shown) and a heater receiver 45a disposed on the other side of the film F are provided.

本実施形態のジッパ供給装置42は、雄側ジッパテープ5の嵌合凸部5aと雌側ジッパテープ6の嵌合凹部6aを着脱可能に嵌合させてなるジッパテープGが巻き回されたジッパリール46と、ジッパリール46から繰出されたジッパテープGが巻き掛けられてこれを支持する支持ローラ47と、超音波端部押し潰し装置43のジッパテープGの繰出し方向T上流側T1に設けられ、繰出されたジッパテープGに一定のテンションを掛けるためのテンション付与手段48と、テンション付与手段48と超音波端部押し潰し装置43の間に位置するジッパテープGを保持して、テンション付与手段48からのテンションを遮断するテンション遮断手段49と、ジッパテープGの先端側を把持(挟持)してジッパテープGを繰出すジッパ搬送手段44と、ジッパ搬送手段44の上流側T1に設けられて、ジッパテープGの先端側を挟持する挟持手段51と、挟持手段51の上流側T1に設けられて、ジッパテープGの方向を変換する方向変換ローラ53とを備えている。なお、ジッパ供給装置42は、少なくともテンション付与手段48とテンション遮断手段49とジッパ搬送手段44を備えていればよい。   The zipper supply device 42 of the present embodiment includes a zipper reel 46 around which a zipper tape G formed by detachably fitting the fitting convex portion 5a of the male zipper tape 5 and the fitting concave portion 6a of the female zipper tape 6 is wound, The zipper tape G fed from the zipper reel 46 is wound around and supported by the support roller 47 and the ultrasonic end crushing device 43 in the feeding direction T upstream side T1 of the zipper tape G. A tension applying unit 48 for applying a constant tension, and a tension blocking unit that holds the zipper tape G positioned between the tension applying unit 48 and the ultrasonic end crushing device 43 to block the tension from the tension applying unit 48. Means 49 and zipper transport means for feeding (zipping) the zipper tape G and feeding the zipper tape G 4 and an upstream side T1 of the zipper transport means 44, which sandwiches the leading end side of the zipper tape G, and an upstream side T1 of the clamping means 51, which changes the direction of the zipper tape G. And a roller 53. The zipper supply device 42 only needs to include at least a tension applying unit 48, a tension blocking unit 49, and a zipper transport unit 44.

本実施形態のテンション付与手段48は、図6に示すように、横方向に並設された上段の複数の固定ローラ48aと、横方向に延設され、上流側T1に位置する後端側を回転中心に上下に回動自在とされたテンションレバー48bと、このテンションレバー48bに支持された下段の複数の揺動ローラ48cとを備えて構成されている。そして、ジッパリール46から繰出されたジッパテープGが、上流側T1から上段の固定ローラ48aと下段の揺動ローラ48cに交互に巻き掛けられて支持されている。また、テンションレバー48bには、テンションレバー48bを下方に回動(揺動ローラ48cを揺動)させるように付勢するスプリング48dが取り付けられている。これにより、テンション付与手段48の各ローラ48a、48cに巻き掛けられたジッパテープGは、スプリング48dの付勢力に応じたテンションレバー48bの回動によって下方に引っ張られ、一定のテンションが付与される。   As shown in FIG. 6, the tension applying means 48 of the present embodiment includes a plurality of upper fixed rollers 48a arranged side by side in the horizontal direction and a rear end side extending in the horizontal direction and positioned on the upstream side T1. A tension lever 48b that is rotatable up and down around the center of rotation, and a plurality of lower oscillating rollers 48c supported by the tension lever 48b. The zipper tape G fed from the zipper reel 46 is supported by being alternately wound around the upper fixed roller 48a and the lower swing roller 48c from the upstream side T1. The tension lever 48b is attached with a spring 48d that urges the tension lever 48b to rotate downward (swing the swinging roller 48c). As a result, the zipper tape G wound around the rollers 48a and 48c of the tension applying means 48 is pulled downward by the rotation of the tension lever 48b according to the urging force of the spring 48d, and a constant tension is applied.

テンション遮断手段49は、図5及び図6に示すように、複数の支持ローラ47のうち、超音波端部押し潰し装置43の上流側T1に設けられた支持ローラ(上流側ローラ47a)と、シリンダ50aと空気圧などで上流側ローラ47aに向けて進退するプレート50bとからなる保持ストッパ50とを備えて構成されている。また、プレート50bの先端には、ゴムなどの弾性部材50cが取り付けられている。そして、本実施形態のテンション遮断手段49においては、プレート50bが進出することにより、上流側ローラ47aに巻き掛けられたジッパテープGを上流側ローラ47aとともに挟持して保持できる。また、このとき、プレート50bに取り付けた弾性部材50cが上流側ローラ47aの外周面を押圧しつつ変形して、ジッパテープGに密着して確実にこれを保持する。   As shown in FIGS. 5 and 6, the tension blocking means 49 includes a support roller (upstream roller 47a) provided on the upstream side T1 of the ultrasonic end crushing device 43 among the plurality of support rollers 47, and The holding stopper 50 includes a cylinder 50a and a plate 50b that moves forward and backward toward the upstream roller 47a by air pressure or the like. An elastic member 50c such as rubber is attached to the tip of the plate 50b. And in the tension | blocking interruption | blocking means 49 of this embodiment, when the plate 50b advances, the zipper tape G wound around the upstream roller 47a can be clamped and hold | maintained with the upstream roller 47a. At this time, the elastic member 50c attached to the plate 50b is deformed while pressing the outer peripheral surface of the upstream roller 47a, and is in close contact with the zipper tape G to securely hold it.

超音波端部押し潰し装置43は、上流側ローラ47aとこの上流側ローラ47aの横方向に並設された下流側ローラ47bの一対の支持ローラに支持されたジッパテープGを間に上下に対向配置した超音波ヘッド43aとアンビル43bとを備えて構成されている。また、本実施形態において、ジッパテープGに超音波を発振する超音波ヘッド43aは、略円柱状に形成され、ジッパテープGと接触する接触面が平面で形成されている。一方、アンビル43bは、上下動可能に設けられ、下方に移動した際にジッパテープGを超音波ヘッド43aとともに押圧して挟持する。また、アンビル43bは、ジッパテープGとの接触面に、かしめ部8を形成するためのかしめ室と、押し潰し部9を形成するための溶融室とがそれぞれ凹部として形成されている。さらに、溶融室は、比較的浅い深さで平面視略円形または楕円形、あるいは角部のない(角部をRにした)四角形などの多角形の板状に形成され、かしめ室は、平面視楕円形の溶融室の長軸の両端部に溶融室よりも深い深さで半円柱形に形成されている。   The ultrasonic end crushing device 43 has an upstream roller 47a and a zipper tape G supported by a pair of support rollers of a downstream roller 47b juxtaposed in the lateral direction of the upstream roller 47a. The ultrasonic head 43a and the anvil 43b are provided. In the present embodiment, the ultrasonic head 43 a that oscillates ultrasonic waves on the zipper tape G is formed in a substantially cylindrical shape, and the contact surface that contacts the zipper tape G is formed as a flat surface. On the other hand, the anvil 43b is provided so as to be movable up and down, and presses and holds the zipper tape G together with the ultrasonic head 43a when moving downward. Further, in the anvil 43b, on the contact surface with the zipper tape G, a caulking chamber for forming the caulking portion 8 and a melting chamber for forming the crushing portion 9 are respectively formed as recesses. Further, the melting chamber is formed in a relatively shallow depth in a substantially circular or elliptical shape in plan view, or a polygonal plate shape such as a quadrangle having no corners (the corners are R), and the caulking chamber is a flat surface. It is formed in a semi-cylindrical shape at a deeper depth than the melting chamber at both ends of the long axis of the elliptical melting chamber.

そして、超音波端部押し潰し装置43は、繰出しが停止した状態のジッパテープGを超音波ヘッダ43aとアンビル43bとで挟持し、超音波を発振することで、図7に示すように、2つ分のかしめ部8と押し潰し部9を一体に形成する。また、各2つ分のかしめ部8と押し潰し部9の形成は、ジッパテープGの繰出し方向(搬送方向)Tの所定間隔で行われ、隣り合う2つ分のかしめ部8と押し潰し部9のそれぞれの中央(切断線S)を切断することで、両端部にかしめ部8と押し潰し部9を1つずつ備えた1袋分のジッパ4が形成される。   Then, the ultrasonic edge crushing device 43 holds the zipper tape G in a state in which the feeding is stopped between the ultrasonic header 43a and the anvil 43b, and oscillates the ultrasonic wave, as shown in FIG. The caulking portion 8 and the crushing portion 9 are integrally formed. The two caulking portions 8 and the crushing portions 9 are formed at predetermined intervals in the feeding direction (conveying direction) T of the zipper tape G, and the adjacent two caulking portions 8 and the crushing portions 9 are formed. By cutting each center (cut line S), one zipper 4 having one caulking portion 8 and one crushing portion 9 at each end is formed.

一方、ジッパ搬送手段44は、図5に示すように、超音波端部形成装置43や支持ローラ47よりも下流側T2に設けられている。また、ジッパ搬送手段44は、ジッパテープGの先端側を把持可能な爪44aを備え、図示せぬ駆動モータの駆動によってフィルムFの一面に沿って進退可能に設けられている。   On the other hand, as shown in FIG. 5, the zipper transport means 44 is provided on the downstream side T <b> 2 from the ultrasonic edge forming device 43 and the support roller 47. The zipper transport means 44 includes a claw 44a capable of gripping the leading end side of the zipper tape G, and is provided so as to advance and retreat along one surface of the film F by driving a drive motor (not shown).

また、挟持手段51は、ジッパ搬送手段44の上流側T1に、繰出されたジッパテープGの先端側を挟持可能に設けられている。さらに、切断刃52は、ジッパ搬送手段44と挟持手段51の間に、両手段44、51で挟持したジッパテープGを1袋分の長さ(1袋分のジッパ4)に切断するように設けられている。   The clamping means 51 is provided on the upstream side T1 of the zipper transport means 44 so that the leading end side of the fed zipper tape G can be clamped. Further, the cutting blade 52 is provided between the zipper transport means 44 and the clamping means 51 so as to cut the zipper tape G sandwiched between the means 44 and 51 into a length of one bag (one zipper 4). It has been.

ついで、上記のジッパ製造装置Cによってジッパ端部を形成するとともにフィルムFにジッパ4を仮付けする方法を説明し、本実施形態のジッパ端部形成装置40の作用及び効果について説明する。   Next, a method of forming the zipper end by the above-described zipper manufacturing apparatus C and temporarily attaching the zipper 4 to the film F will be described, and the operation and effect of the zipper end forming apparatus 40 of the present embodiment will be described.

はじめに、ジッパリール46から繰出されたジッパテープGの先端側が挟持手段51によって挟持される。このとき、ジッパテープGの先端側が、挟持手段51よりも下流側T2に所定量延出した状態で挟持されている。また、この状態において、保持ストッパ50のプレート50bは退避しており、上流側ローラ47aに巻き掛けられたジッパテープGは解放されている。さらに、超音波端部押し潰し装置43のアンビル43bが上方に退避している。このため、先端側が挟持手段51に保持されたジッパテープGは、テンション付与手段48によって一定のテンションが掛けられている。   First, the leading end side of the zipper tape G fed from the zipper reel 46 is clamped by the clamping means 51. At this time, the leading end side of the zipper tape G is pinched in a state where it is extended a predetermined amount to the downstream side T2 from the pinching means 51. In this state, the plate 50b of the holding stopper 50 is retracted, and the zipper tape G wound around the upstream roller 47a is released. Further, the anvil 43b of the ultrasonic end crushing device 43 is retracted upward. For this reason, the zipper tape G having the tip side held by the clamping means 51 is applied with a certain tension by the tension applying means 48.

そして、ジッパ搬送手段44が、挟持手段51から下流側T2に延出したジッパテープGの両面を爪44aで把持するとともに、挟持手段51によるジッパテープGの挟持が解除される。ついで、ジッパ搬送手段44が下流側T2に進出移動して1袋分のジッパ4に応じた長さでジッパテープGの繰出しを行ない、再度挟持手段51がジッパテープGを挟持する。このとき、ジッパリール46から繰出されるジッパテープGのテンションは、テンション付与手段48によって調整され、一定のテンションが維持される。そして、この段階で、超音波端部押し潰し装置43のアンビル43bが下方に移動し、繰出しが停止した状態のジッパテープGを超音波ヘッダ43aとともに挟持する。   The zipper transport means 44 grips both surfaces of the zipper tape G extending from the clamping means 51 to the downstream side T2 with the claws 44a, and the clamping of the zipper tape G by the clamping means 51 is released. Next, the zipper transport means 44 advances and moves to the downstream side T2, feeds the zipper tape G by a length corresponding to the zipper 4 for one bag, and the holding means 51 holds the zipper tape G again. At this time, the tension of the zipper tape G fed out from the zipper reel 46 is adjusted by the tension applying means 48, and a constant tension is maintained. At this stage, the anvil 43b of the ultrasonic end crushing device 43 moves downward, and the zipper tape G in a state where the feeding is stopped is clamped together with the ultrasonic header 43a.

ここで、従来においては、この状態、すなわちジッパテープGにテンションが掛かった状態で超音波を発振し、かしめ部8及び押し潰し部9を形成していた。このため、ジッパテープGが上流側T1(テンション付与手段48側)に引っ張られた状態で、雄側ジッパテープ5と雌側ジッパテープ6を押し潰して溶着することになり、断面形状が一様でないジッパテープGの押し潰し部9にテンションが不均衡に作用しながら伸び、押し潰し部9に穴が開いたり、破断が生じる場合があった。特に、本実施形態のように、押し潰し部9を薄く形成した場合には、穴や破断が生じやすく、このため、ジッパテープGの厚さ(ジッパ端部の厚さ、押し潰し部9の厚さ)を厚くせざるを得ないという問題があった。   Here, conventionally, in this state, that is, in a state where the zipper tape G is tensioned, ultrasonic waves are oscillated to form the caulking portion 8 and the crushing portion 9. For this reason, the male zipper tape 5 and the female zipper tape 6 are crushed and welded in a state where the zipper tape G is pulled to the upstream side T1 (tension applying means 48 side). In some cases, tension was applied to the crushed portion 9 while acting unbalanced, and the crushed portion 9 was perforated or ruptured. In particular, when the crushing portion 9 is formed thin as in the present embodiment, holes and breakage are likely to occur. For this reason, the thickness of the zipper tape G (the thickness of the zipper end portion, the thickness of the crushing portion 9). There was a problem that it had to be thick.

これに対し、本実施形態においては、テンション遮断手段49が設けられている。そして、繰出しが停止した状態のジッパテープGを超音波ヘッダ43aとアンビル43bで挟持するとともに、保持ストッパ50のプレート50bを進出させ、上流側ローラ47aとともにこの部分のジッパテープGを挟持して保持する。これにより、この挟持部分よりも下流側T2のジッパテープGは、テンション付与手段48によってそのテンションを一定に保つように引っ張られることがなくなる。このため、超音波端部押し潰し装置43による押し潰し部9の形成時(押し潰し時)に、テンションを掛けずに押し潰し部9を形成でき、不均衡なテンションが作用して穴が開いたり、破断が生じるという不都合を確実に解消することができる。よって、保持ストッパ50を設けるという簡単な構造でテンションを遮断して穴や破断の発生を防止できるため、ジッパ端部の押し潰し部9を、嵌合凸部5aと嵌合凹部6aが一体に溶着される厚さまで薄く形成することが可能になる。   On the other hand, in this embodiment, a tension blocking means 49 is provided. Then, the zipper tape G in a state where the feeding is stopped is sandwiched between the ultrasonic header 43a and the anvil 43b, the plate 50b of the holding stopper 50 is advanced, and this portion of the zipper tape G is sandwiched and held together with the upstream roller 47a. Thereby, the zipper tape G on the downstream side T2 from the sandwiched portion is not pulled by the tension applying means 48 so as to keep the tension constant. Therefore, when the crushing portion 9 is formed by the ultrasonic end crushing device 43 (when crushing), the crushing portion 9 can be formed without applying tension, and an unbalanced tension acts to open a hole. Or the inconvenience that breakage occurs can be surely solved. Therefore, since the tension can be cut off by the simple structure of providing the holding stopper 50 and the occurrence of holes and breakage can be prevented, the crushing portion 9 at the end of the zipper is integrated with the fitting convex portion 5a and the fitting concave portion 6a. It becomes possible to form thinly to the thickness to weld.

このように好適に2つ分のかしめ部8及び押し潰し部9が超音波端部押し潰し装置43で形成された段階で、アンビル43bを上方に退避させるとともに、保持ストッパ50のプレート50bを退避させる。また、本実施形態においては、このように押し潰しを終えて再度ジッパテープGの繰出し動作に移行する際、テンション遮断手段49がテンション付与手段48と超音波端部押し潰し装置43の間に配置され、押し潰し時にテンション遮断手段49の上流側T1のジッパテープGのテンションが維持されている。このため、テンション遮断手段49でテンションを遮断した下流側T2のジッパテープを一定のテンション状態に迅速に戻すことができ、確実に安定した状態で繰出しを行なうことが可能になる。よって、保持ストッパ50を退避させるという簡便な操作且つ簡単な構造で、繰出されたジッパテープGを一定のテンション状態に迅速に戻すことができるため、安価で安定した運転を実現することができる。   Thus, when the two caulking portions 8 and the crushing portions 9 are preferably formed by the ultrasonic end crushing device 43, the anvil 43b is retracted upward and the plate 50b of the holding stopper 50 is retracted. Let Further, in the present embodiment, when the crushing is finished and the zipper tape G is transferred again, the tension blocking means 49 is disposed between the tension applying means 48 and the ultrasonic end crushing device 43. The tension of the zipper tape G on the upstream side T1 of the tension blocking means 49 is maintained during crushing. For this reason, the zipper tape on the downstream side T2 whose tension has been interrupted by the tension interrupting means 49 can be quickly returned to a constant tension state, and can be fed out reliably and stably. Therefore, since the fed zipper tape G can be quickly returned to a constant tension state with a simple operation and a simple structure of retracting the holding stopper 50, an inexpensive and stable operation can be realized.

なお、前述したように、ジッパ搬送手段44が下流側T2に進出移動して1袋分のジッパ4に応じた長さでジッパテープGの繰出しを行なった段階で、ジッパテープGに先行して形成された2つ分のかしめ部8及び押し潰し部9の中央が、切断刃52による切断位置(切断線S)に配される。そして、ジッパ搬送手段44と挟持手段51で挟持したジッパテープGは、この切断刃52で押し潰し部9を二分するように切断され、所定長さのジッパ4が切り取られる。このジッパ4は、ジッパ搬送手段44によってフィルムFの一面の所定位置に搬送され、ジッパ仮付け装置45によって仮付けされる。   As described above, the zipper transport means 44 is formed in advance of the zipper tape G when the zipper transport means 44 advances and moves to the downstream side T2 and the zipper tape G is fed out by a length corresponding to the zipper 4 for one bag. Further, the centers of the two caulking portions 8 and the crushing portions 9 are arranged at a cutting position (cutting line S) by the cutting blade 52. Then, the zipper tape G sandwiched between the zipper transport means 44 and the sandwiching means 51 is cut by the cutting blade 52 so as to bisect the crushing portion 9, and the zipper 4 having a predetermined length is cut off. The zipper 4 is conveyed to a predetermined position on one surface of the film F by the zipper conveying means 44 and temporarily attached by the zipper temporary attachment device 45.

このように仮付けされたジッパ4は、縦形製袋充填包装機BによってフィルムFが袋状に形成され、且つ内容物の充填を行なった後に、ジッパ本付けヒータ29によって本付けされる。そして、本実施形態においては、ジッパ端部を薄く形成することが可能であるため、このように本付けする際、ジッパ端部の袋1への溶着性を高め、シールを緊密に行なうことができ、袋1の密封性を高めることが可能になる。   The zipper 4 temporarily attached in this manner is booked by the zipper permanent heater 29 after the film F is formed into a bag shape by the vertical bag making and packaging machine B and the contents are filled. And in this embodiment, since it is possible to form a zipper edge part thinly, when carrying out book attachment in this way, the weldability to the bag 1 of a zipper edge part can be improved, and a seal | sticker can be performed tightly. It is possible to improve the sealing performance of the bag 1.

したがって、本実施形態のジッパ端部形成装置40によれば、薄いジッパテープGを用いたり、ジッパ端部の厚さを薄く形成できることで、袋の密封性を高めることができ、ジッパ4及びこのジッパ4を備える袋1の良品率を向上させることができる。   Therefore, according to the zipper end portion forming apparatus 40 of the present embodiment, the thin zipper tape G can be used or the thickness of the zipper end portion can be reduced, so that the sealing performance of the bag can be improved. The non-defective product rate of the bag 1 having 4 can be improved.

なお、本発明は、上記の第1実施形態に限定されるものではなく、その趣旨を逸脱しない範囲で適宜変更可能である。例えば、本実施形態では、ジッパ端部にかしめ部8と押し潰し部9が形成されるものとしたが、薄いジッパテープG(ジッパ4)を用いる場合には、嵌合凸部5aと嵌合凹部6aを強固に圧着することが難しく好適にかしめ部8を形成することができないおそれがある。このため、必ずしもかしめ部8を形成する必要はない。すなわち、本実施形態のように、テンションを掛けずに押し潰し部9を形成した場合には、薄い雄側ジッパテープ(雄側ジッパ片)5と雌側ジッパテープ(雌側ジッパ片)6とが一体になる厚さまで押し潰すことができるため、押し潰し部9を強固に一体形成することができる。よって、例えば図7の符号Mで示す全領域に押し潰し部9を形成し、ジッパ端部にかしめ部8を形成しなくても、ジッパ4の開封動作を破断が生じることなくこの押し潰し部9で好適に止めることが可能である。   In addition, this invention is not limited to said 1st Embodiment, In the range which does not deviate from the meaning, it can change suitably. For example, in the present embodiment, the caulking portion 8 and the crushing portion 9 are formed at the end of the zipper. However, when a thin zipper tape G (zipper 4) is used, the fitting convex portion 5a and the fitting concave portion are used. It is difficult to firmly press 6a, and there is a possibility that the caulking portion 8 cannot be formed suitably. For this reason, it is not always necessary to form the caulking portion 8. That is, when the crushing portion 9 is formed without applying tension as in this embodiment, the thin male side zipper tape (male side zipper piece) 5 and the female side zipper tape (female side zipper piece) 6 are integrated. Therefore, the crushing portion 9 can be integrally formed firmly. Therefore, for example, even if the crushing portion 9 is formed in the entire area indicated by the symbol M in FIG. 7 and the caulking portion 8 is not formed at the end of the zipper, the crushing portion of the zipper 4 is opened without breaking. 9 can be suitably stopped.

また、本実施形態では、保持ストッパ50がシリンダ50aとプレート50bで構成されるものとしたが、保持ストッパ50は、超音波端部押し潰し装置43による押し潰し時に、上流側ローラ47aとともにジッパテープGを保持して、テンション付与手段48によるテンションを遮断することが可能であれば、特にシリンダ50aとプレート50b以外の構成であってもよい。これに加えて、保持ストッパ50とともにテンションを遮断する上流側ローラ47aが、超音波端部押し潰し装置43を間にして配置した一対の支持ローラの上流側支持ローラであるものとしたが、テンション付与手段48と超音波端部押し潰し装置43の間に配置されている支持ローラであれば、他の支持ローラであってもよく、この場合においても本実施形態と同様の効果を得ることができる。   Further, in the present embodiment, the holding stopper 50 is constituted by the cylinder 50a and the plate 50b. However, the holding stopper 50, when being crushed by the ultrasonic end crushing device 43, together with the upstream roller 47a and the zipper tape G As long as it is possible to hold the tension and block the tension applied by the tension applying means 48, a configuration other than the cylinder 50a and the plate 50b may be used. In addition to this, the upstream roller 47a that cuts off the tension together with the holding stopper 50 is an upstream support roller of a pair of support rollers disposed with the ultrasonic end crushing device 43 in between. Any other support roller may be used as long as it is a support roller disposed between the applying means 48 and the ultrasonic end crushing device 43. In this case, the same effect as in the present embodiment can be obtained. it can.

ついで、図8及び図9を参照し、本発明の第2実施形態に係るジッパ端部形成装置について説明する。本実施形態は、第1実施形態と同様、ジッパ端部を好適に薄く形成することが可能なジッパ端部形成装置に関するものである。よって、ここでは、第1実施形態に共通する構成に対して同一符号を付し、その詳細についての説明を省略する。   Next, a zipper end portion forming apparatus according to a second embodiment of the present invention will be described with reference to FIGS. As in the first embodiment, the present embodiment relates to a zipper end forming apparatus capable of forming a zipper end suitably thin. Therefore, here, the same reference numerals are given to the components common to the first embodiment, and the detailed description thereof is omitted.

本実施形態のジッパ端部形成装置60は、図8に示すように、超音波端部押し潰し装置43と、超音波端部押し潰し装置43の上流側T1に位置するジッパリール46(第1駆動手段)と、ジッパリール46を回転駆動させる駆動モータ61と、超音波端部押し潰し装置43の下流側T2に位置するジッパ搬送手段44(第2駆動手段)と、ジッパ搬送手段44を駆動させる駆動モータ44bと、ジッパテープGが巻き回された状態のジッパリール46の径を計測する測径装置62と、駆動モータ61と駆動モータ44b及び測径装置62に繋げられている制御装置63とを備えて構成されている。そして、本実施形態のジッパ端部形成装置60において、制御装置63が駆動モータ61及び駆動モータ44bを制御することによって、ジッパリール46とジッパ搬送手段44の駆動を制御し、ジッパテープGの繰出し量及び繰出されたジッパテープGのテンションが調整される。また、本実施形態では、ジッパリール46と駆動モータ61とジッパ搬送手段44とジッパ搬送手段44の駆動モータ44bと測径装置62と制御装置63と挟持手段51と方向変換ローラ53がジッパ供給装置42を構成している。なお、ジッパ供給装置42は、このうち少なくともジッパリール46と駆動モータ61とジッパ搬送手段44と駆動モータ44bと制御装置63とを備えていればよい。   As shown in FIG. 8, the zipper end forming device 60 of the present embodiment includes an ultrasonic end crushing device 43 and a zipper reel 46 (first drive) positioned on the upstream side T1 of the ultrasonic end crushing device 43. Means), a drive motor 61 for rotationally driving the zipper reel 46, a zipper transport means 44 (second drive means) located on the downstream side T2 of the ultrasonic end crushing device 43, and a drive for driving the zipper transport means 44. A motor 44b, a diameter measuring device 62 for measuring the diameter of the zipper reel 46 in a state where the zipper tape G is wound, and a control device 63 connected to the drive motor 61, the drive motor 44b and the diameter measuring device 62 are provided. It is configured. In the zipper end forming device 60 of the present embodiment, the control device 63 controls the drive motor 61 and the drive motor 44b to control the drive of the zipper reel 46 and the zipper transport means 44, and the feeding amount of the zipper tape G and The tension of the fed zipper tape G is adjusted. In this embodiment, the zipper reel 46, the drive motor 61, the zipper transport means 44, the drive motor 44 b of the zipper transport means 44, the diameter measuring device 62, the control device 63, the clamping device 51, and the direction changing roller 53 are included in the zipper supply device 42. Is configured. The zipper supply device 42 only needs to include at least the zipper reel 46, the drive motor 61, the zipper transport means 44, the drive motor 44b, and the control device 63.

ついで、上記のように構成した本実施形態のジッパ端部形成装置60でジッパテープGのテンションを調整しながらジッパ端部を形成し、ジッパ4をフィルムFに仮付けする動作を、図9に示すタイミングチャートを参照して説明する。   Next, the operation of forming the zipper end portion while adjusting the tension of the zipper tape G with the zipper end portion forming apparatus 60 of the present embodiment configured as described above, and temporarily attaching the zipper 4 to the film F is shown in FIG. This will be described with reference to a timing chart.

はじめに、時刻t0の状態では、ジッパ搬送手段44が、挟持手段51から下流側T2に延出したジッパテープGを挟持している。また、挟持手段51が開かれジッパテープGの挟持が解除され、超音波端部押し潰し装置43のアンビル43bが上方に退避している。   First, in the state at time t0, the zipper transport means 44 holds the zipper tape G extending from the holding means 51 to the downstream side T2. Further, the clamping means 51 is opened, the clamping of the zipper tape G is released, and the anvil 43b of the ultrasonic end crushing device 43 is retracted upward.

この時刻t0の状態からジッパ4の供給を開始する際には、制御装置63の動作指令を受けてジッパ搬送手段44の駆動モータ44bが駆動し、ジッパ搬送手段44が下流側T2に移動し始める。また、制御装置63に制御されて、駆動モータ61がジッパ搬送手段44の駆動に同期するように駆動を開始する。すなわちジッパ搬送手段44の移動にジッパテープGの繰出量を略一致させるように、駆動モータ61がジッパリール46を回転させる。一方で、このようなジッパテープGの繰出し開始時に、駆動モータ61は、ジッパ搬送手段44の駆動モータ44bに対して、僅かに遅れた時刻t0’から駆動するように制御され、この微小遅れの駆動によって繰出されたジッパテープGに一定のテンションが掛けられる。そして、1袋分のジッパ4に応じた長さでジッパテープGが繰出された時刻t1でジッパ搬送手段44の駆動モータ44bの駆動が停止し、この時刻t1から僅かに遅れた時刻t1’で駆動モータ61の駆動が停止するように制御される。このようなジッパテープGの繰出し停止時には、駆動モータ61の微小遅れの停止によって、ジッパテープGのテンションが解除される。なお、この微小遅れの駆動制御は、ジッパテープGが弛んでその位置精度がくるうことがない程度で行なわれる。また、ジッパ搬送手段44の駆動モータ44bの駆動停止及び駆動モータ61の駆動停止は、すなわち1袋分のジッパ4の長さに応じたジッパテープGの繰出量は、このジッパテープGの繰出量に応じて変化するジッパリール46の径が継続的に測径装置62で計測されているため、この測径装置62の検出結果を基にして制御装置63で制御される。   When the supply of the zipper 4 is started from the state at this time t0, the drive motor 44b of the zipper transport means 44 is driven in response to the operation command of the control device 63, and the zipper transport means 44 starts to move to the downstream side T2. . Further, under the control of the control device 63, the driving is started so that the driving motor 61 is synchronized with the driving of the zipper transport means 44. That is, the drive motor 61 rotates the zipper reel 46 so that the amount of zipper tape G fed substantially matches the movement of the zipper transport means 44. On the other hand, at the start of feeding of the zipper tape G, the drive motor 61 is controlled to drive from the time t0 ′ slightly delayed with respect to the drive motor 44b of the zipper transport means 44. A constant tension is applied to the zipper tape G fed out by the above. The drive motor 44b of the zipper transport means 44 stops driving at time t1 when the zipper tape G is fed out with a length corresponding to the zipper 4 for one bag, and is driven at time t1 ′ slightly delayed from this time t1. The motor 61 is controlled to stop driving. When such zipper tape G feeding is stopped, the tension of the zipper tape G is released by the small delay of the drive motor 61. This minute delay drive control is performed to such an extent that the zipper tape G is not loosened and its positional accuracy is not lowered. Further, the drive stop of the drive motor 44b of the zipper transport means 44 and the drive stop of the drive motor 61, that is, the feed amount of the zipper tape G corresponding to the length of the zipper 4 for one bag depends on the feed amount of the zipper tape G. Since the diameter of the zipper reel 46 that changes in this manner is continuously measured by the diameter measuring device 62, it is controlled by the control device 63 based on the detection result of the diameter measuring device 62.

そして、所定量のジッパテープGが繰出された時刻t1で、挟持手段51が閉じ初め、ジッパテープGの先端側をジッパ搬送手段44と挟持手段51で挟持するとともに、両手段44、51の間に位置する切断刃52が駆動して、先行して形成された2つ分のかしめ部8及び押し潰し部9の中央(切断位置S)が切断される。これにより、1袋分のジッパ4がジッパ搬送手段44に保持される。   At time t1 when the predetermined amount of zipper tape G is fed out, the clamping means 51 begins to close, the leading end side of the zipper tape G is clamped by the zipper transport means 44 and the clamping means 51, and is positioned between the both means 44, 51. The cutting blade 52 to be driven is driven to cut the center (cutting position S) of the two caulking portions 8 and the crushing portions 9 formed in advance. As a result, the zipper 4 for one bag is held by the zipper transport means 44.

挟持手段51が閉じた後の所定の時刻t2から、超音波端部押し潰し装置43のアンビル43bが下方に移動し始め、一対の支持ローラ47a、47bで支持された部分のジッパテープGが、超音波ヘッド43aとアンビル43bで挟持される。そして、超音波ヘッド43aから超音波を発振(時刻t4)して押し潰しが開始され、所定時間が経過した時刻t9で超音波の発振が停止される。これにより、ジッパテープGに2つ分のかしめ部8及び押し潰し部9が形成され、時刻t10でアンビル43bが上方に移動する。   From a predetermined time t2 after the clamping means 51 is closed, the anvil 43b of the ultrasonic edge crushing device 43 starts to move downward, and the zipper tape G of the portion supported by the pair of support rollers 47a, 47b It is sandwiched between the sonic head 43a and the anvil 43b. Then, an ultrasonic wave is oscillated from the ultrasonic head 43a (time t4) to start crushing, and the ultrasonic wave oscillation is stopped at a time t9 when a predetermined time has elapsed. Thereby, the two crimping parts 8 and the crushing part 9 are formed in the zipper tape G, and the anvil 43b moves upward at the time t10.

ここで、本実施形態において、上記のように超音波端部押し潰し装置43による押し潰し時のジッパテープGは、下流側(先端側)T2を挟持手段51で、上流側T1を駆動モータ61が停止した状態のジッパリール46で保持され、且つ駆動モータ61の微小遅れの停止によりテンションが掛けられていない。このため、ジッパテープGが引っ張られることがない状態でかしめ部8及び押し潰し部9が形成される。   Here, in the present embodiment, the zipper tape G at the time of crushing by the ultrasonic crushing device 43 as described above is the downstream side (tip side) T2 by the clamping means 51 and the upstream side T1 by the drive motor 61. It is held by the zipper reel 46 in a stopped state, and no tension is applied by the minute delay of the drive motor 61. For this reason, the caulking portion 8 and the crushing portion 9 are formed in a state where the zipper tape G is not pulled.

一方、切断刃52で切断されてジッパ搬送手段44に保持されたジッパ4は、制御装置63によってジッパ搬送手段44の駆動モータ44bが駆動され(時刻t3)、フィルムFの所定位置に搬送される(時刻t5)。そして、ジッパ仮付け装置45の仮付けヒータでフィルムFの一面に仮付け(シール)が開始される(時刻t6)とともに、ジッパ搬送手段44の爪44aが開かれジッパ4の保持が解除される(時刻t7)。ついで、ジッパ搬送手段44が次のジッパ4(ジッパテープG)を繰り出す初期位置に戻るように(退避するように)ジッパ搬送手段44の駆動モータ44bが駆動され(時刻t8)、初期位置で停止(時刻t11)するとともに爪44aを閉じ(時刻t13)、挟持手段51から下流側T2に延出したジッパテープGの先端側を挟持する。また、ジッパ仮付け装置45によってジッパ4のシールが完了した段階(時刻t12)で、縦形製袋充填包装機Bの繰出しベルト26が駆動し、1袋分のフィルムFがフィルムリール20から繰出される。   On the other hand, the zipper 4 cut by the cutting blade 52 and held by the zipper transport means 44 is transported to a predetermined position of the film F by driving the drive motor 44b of the zipper transport means 44 by the control device 63 (time t3). (Time t5). Then, temporary attachment (seal) is started on one surface of the film F by the temporary heater of the zipper temporary attachment device 45 (time t6), and the nail 44a of the zipper transport means 44 is opened to release the holding of the zipper 4. (Time t7). Next, the drive motor 44b of the zipper transport means 44 is driven (time t8) so that the zipper transport means 44 returns to the initial position where the next zipper 4 (zipper tape G) is unwound (time t8), and stops at the initial position ( At the time t11), the claw 44a is closed (time t13), and the leading end side of the zipper tape G extending from the clamping means 51 to the downstream side T2 is clamped. Further, when the zipper 4 is completely sealed by the zipper temporary attaching device 45 (time t12), the feeding belt 26 of the vertical bag making filling and packaging machine B is driven, and the film F for one bag is fed from the film reel 20. The

したがって、本実施形態のジッパ端部形成装置60によれば、駆動モータ61とジッパ搬送手段44の駆動モータ44bを制御し、ジッパリール46とジッパ搬送手段44の駆動が制御装置63で制御されることで、ジッパテープGのテンションを解除することができるため、押し潰し時に、押し潰し部9に不均衡なテンションが作用して穴が開いたり、破断が生じるという不都合を確実に解消することができる。よって、このように穴や破断の発生を防止できるため、ジッパ端部を薄く形成することが可能になる。   Therefore, according to the zipper end forming device 60 of the present embodiment, the drive motor 61 and the drive motor 44b of the zipper transport means 44 are controlled, and the drive of the zipper reel 46 and the zipper transport means 44 is controlled by the control device 63. Thus, since the tension of the zipper tape G can be released, it is possible to surely eliminate the inconvenience that an unbalanced tension acts on the crushed portion 9 to cause a hole or breakage during crushing. Therefore, since the occurrence of holes and breaks can be prevented in this way, the zipper end can be formed thin.

そして、第1実施形態と同様、ジッパ端部を薄く形成できることにより、ジッパ4の本付け時に、ジッパ端部の袋1への溶着性を高め、シールを緊密に行なうことができ、袋1の密封性を高めることが可能になる。   And since zipper edge part can be formed thinly similarly to 1st Embodiment, when zipper 4 is attached, the weldability of zipper edge part to bag 1 can be improved, and sealing can be performed tightly. It becomes possible to improve sealing performance.

よって、本実施形態のジッパ端部形成装置60においても、第1実施形態と同様、薄いジッパテープGを用いたり、ジッパ端部の厚さを薄く形成できることで、袋1の密封性を高めることができ、ジッパ4及びこのジッパ4を備える袋1の良品率を向上させることができる。   Therefore, also in the zipper end forming apparatus 60 of the present embodiment, the sealing performance of the bag 1 can be improved by using a thin zipper tape G or by forming the zipper end thin, similarly to the first embodiment. It is possible to improve the yield rate of the zipper 4 and the bag 1 provided with the zipper 4.

なお、本発明は、上記の第2実施形態に限定されるものではなく、その趣旨を逸脱しない範囲で適宜変更可能である。例えば、本実施形態では、ジッパ端部形成装置60が、ジッパリール46(第1駆動手段)に取り付けた駆動モータ61と、ジッパ搬送手段44(第2駆動手段)に取り付けた駆動モータ44bとを制御することにより、ジッパリール46とジッパ搬送手段44の駆動を制御して、ジッパテープGの繰出量及び繰り出されたジッパテープGのテンションを調整するように構成されるとしたが、例えば図10に示すように、超音波端部押し潰し装置43の上流側T1に配置され、ジッパリール46から繰出されたジッパテープGを挟んで対向配置した一対のローラ65a、65bを設け、一方のローラを空転ローラ65a、他方のローラを、駆動モータ61を取り付けた駆動ローラ65b(第1駆動手段)とし、この駆動ローラ65bの駆動を制御装置63で制御してジッパテープGの繰出量及び繰出されたジッパテープGのテンションを調整するように構成してもよい。この場合には、駆動ローラ65bの回転量を検出することでジッパテープGの繰出量を検出することができるため、本実施形態のように測径装置62を設ける必要がなく、例えば駆動モータ61にエンコーダ付モータを用いるなどしてジッパテープGの繰出量やテンションを制御することが可能になり、より簡易な構成で本実施形態と同様の効果を得ることができる。なお、この場合には、ジッパリール46と駆動モータ61と空転ローラ65aと駆動ローラ65bとジッパ搬送手段44とジッパ搬送手段44の駆動モータ44bと制御装置63と挟持手段51と方向変換ローラ53とがジッパ供給装置42を構成する。また、ジッパ供給装置42は、このうち少なくとも駆動モータ61と駆動ローラ65bとジッパ搬送手段44とジッパ搬送手段44の駆動モータ44bと制御装置63とを備えていればよい。   In addition, this invention is not limited to said 2nd Embodiment, In the range which does not deviate from the meaning, it can change suitably. For example, in the present embodiment, the zipper end forming device 60 controls the drive motor 61 attached to the zipper reel 46 (first drive means) and the drive motor 44b attached to the zipper transport means 44 (second drive means). Thus, the drive of the zipper reel 46 and the zipper transport means 44 is controlled to adjust the feed amount of the zipper tape G and the tension of the zipper tape G that has been fed. For example, as shown in FIG. A pair of rollers 65a and 65b disposed on the upstream side T1 of the ultrasonic end crushing device 43 and arranged opposite to each other with the zipper tape G fed from the zipper reel 46 interposed therebetween, and one roller is an idle roller 65a and the other is a roller The roller is a driving roller 65b (first driving means) to which a driving motor 61 is attached, and the driving roller 65b is driven. It may be configured to adjust the tension of the feed-out amount and Repetitive out the zipper tape G of zipper tape G is controlled by the control device 63. In this case, since the feed amount of the zipper tape G can be detected by detecting the rotation amount of the drive roller 65b, there is no need to provide the diameter measuring device 62 as in the present embodiment. The amount and tension of the zipper tape G can be controlled by using a motor with an encoder, and the same effects as those of the present embodiment can be obtained with a simpler configuration. In this case, the zipper reel 46, the drive motor 61, the idling roller 65a, the drive roller 65b, the zipper transport means 44, the drive motor 44b of the zipper transport means 44, the control device 63, the clamping means 51, and the direction changing roller 53 are provided. A zipper supply device 42 is configured. Further, the zipper supply device 42 only needs to include at least the drive motor 61, the drive roller 65b, the zipper transport means 44, the drive motor 44b of the zipper transport means 44, and the control device 63.

さらに、本実施形態では、駆動モータ61とジッパ搬送手段44の駆動モータ44bの停止タイミングをずらすことでテンションを調整したが、停止タイミングではなく両駆動モータ61、44bの駆動速度を制御してテンションを調整するようにしてもよい。   Further, in this embodiment, the tension is adjusted by shifting the stop timing of the drive motor 61 and the drive motor 44b of the zipper transport means 44, but the tension is adjusted by controlling the drive speed of both the drive motors 61 and 44b instead of the stop timing. May be adjusted.

本発明の第1実施形態に係るジッパ端部形成装置を用いて形成したジッパを備えるジッパ付き袋を示す図である。It is a figure which shows the bag with a zipper provided with the zipper formed using the zipper edge part formation apparatus which concerns on 1st Embodiment of this invention. 図1のジッパ付き袋のジッパを示す図である。It is a figure which shows the zipper of the bag with a zipper of FIG. 図2のX1−X1線矢視図である。FIG. 3 is a view taken along line X1-X1 in FIG. 図2のX2−X2線矢視図である。FIG. 3 is a view taken along line X2-X2 in FIG. 2. 本発明の第1実施形態に係るジッパ端部形成装置を備えたジッパ付き袋の製造装置を示す斜視図である。It is a perspective view which shows the manufacturing apparatus of the bag with a zipper provided with the zipper edge part formation apparatus which concerns on 1st Embodiment of this invention. 本発明の第1実施形態に係るジッパ端部形成装置を示す側面図である。It is a side view which shows the zipper edge part formation apparatus which concerns on 1st Embodiment of this invention. 本発明の第1実施形態に係るジッパ端部形成装置を用いて押し潰し部(ジッパ端部)を形成したジッパテープを示す図である。It is a figure which shows the zipper tape which formed the crushing part (zipper edge part) using the zipper edge part formation apparatus which concerns on 1st Embodiment of this invention. 本発明の第2実施形態に係るジッパ端部形成装置を示す側面図である。It is a side view which shows the zipper edge part forming apparatus which concerns on 2nd Embodiment of this invention. 本発明の第2実施形態に係るジッパ端部形成装置を備えたジッパ製造装置のタイミングチャートである。It is a timing chart of the zipper manufacturing apparatus provided with the zipper edge part formation apparatus concerning 2nd Embodiment of this invention. 本発明の第2実施形態に係るジッパ端部形成装置の変形例を示す側面図である。It is a side view which shows the modification of the zipper edge part formation apparatus which concerns on 2nd Embodiment of this invention.

符号の説明Explanation of symbols

1 ジッパ付き袋
4 ジッパ
5 雄側ジッパ片(雄側ジッパテープ)
5a 嵌合凸部
5b フランジ部
6 雌側ジッパ片(雌側ジッパテープ)
6a 嵌合凹部
6b フランジ部
7 嵌合部(開閉部)
8 かしめ部
9 押し潰し部(溶融部)
40 ジッパ端部形成装置
42 ジッパ供給装置
43 超音波端部押し潰し装置
44 ジッパ搬送手段
44b ジッパ搬送手段の駆動モータ
45 ジッパ仮付け装置
46 ジッパリール
47 支持ローラ
47a 上流側ローラ
48 テンション付与手段
49 テンション遮断手段
50 保持ストッパ
60 ジッパ端部形成装置
61 駆動モータ
62 測径装置
63 制御装置
A ジッパ付き袋の製造装置
B 縦形製袋充填包装機
C ジッパ製造装置
G ジッパテープ
F フィルム
T 繰出し方向
T1 上流側
T2 下流側
1 Bag with zipper 4 Zipper 5 Male zipper piece (male zipper tape)
5a Fitting convex part 5b Flange part 6 Female side zipper piece (female side zipper tape)
6a Fitting recess 6b Flange part 7 Fitting part (opening / closing part)
8 Caulking part 9 Crushing part (melting part)
40 Zipper end forming device 42 Zipper supply device 43 Ultrasonic end crushing device 44 Zipper transport means 44b Drive motor for zipper transport means 45 Zipper temporary attachment device 46 Zipper reel 47 Support roller 47a Upstream roller 48 Tension applying means 49 Tension interruption Means 50 Holding stopper 60 Zipper end forming device 61 Drive motor 62 Diameter measuring device 63 Control device A Zippered bag manufacturing device B Vertical bag making filling packaging machine C Zipper manufacturing device G Zipper tape F Film T Feeding direction T1 Upstream side T2 Downstream ~ side

Claims (5)

雄側ジッパテープの嵌合凸部と雌側ジッパテープの嵌合凹部とを着脱可能に嵌合させてなるジッパテープに対し、該ジッパテープを所定の長さで切断して形成されるジッパの端部となる位置に、前記嵌合凸部と前記嵌合凹部を押し潰して前記雄側ジッパテープと前記雌側ジッパテープを溶着した押し潰し部を形成するジッパ端部形成装置であって、
繰出される前記ジッパテープを間に対向配置された超音波ヘッドとアンビルを備え、前記ジッパテープに超音波を発振して前記押し潰し部を形成する超音波端部押し潰し装置と、
前記ジッパテープの繰出し時には、前記ジッパテープに一定のテンションを掛け、前記押し潰し部の形成時には、少なくとも前記押し潰し部にテンションが掛からないように前記ジッパテープを供給するジッパ供給装置とを備えることを特徴とするジッパ端部形成装置。
The zipper tape is formed by cutting the zipper tape to a predetermined length with respect to the zipper tape in which the fitting convex portion of the male zipper tape and the fitting concave portion of the female zipper tape are detachably fitted. A zipper end forming device that forms a crushed portion by crushing the fitting convex portion and the fitting concave portion at a position to weld the male zipper tape and the female zipper tape,
An ultrasonic end crushing device comprising an ultrasonic head and an anvil disposed opposite to each other with the zipper tape to be fed out, and oscillating ultrasonic waves in the zipper tape to form the crushing portion;
A zipper supply device that applies a certain tension to the zipper tape when the zipper tape is paid out, and supplies the zipper tape so that at least the crushing portion is not tensioned when the crushing portion is formed; Zipper end forming device.
請求項1記載のジッパ端部形成装置において、
前記超音波端部押し潰し装置は、前記押し潰し部の前記嵌合凸部と前記嵌合凹部が一体に溶着される厚さまで前記ジッパテープを押し潰すことを特徴とするジッパ端部形成装置。
The zipper end forming apparatus according to claim 1, wherein
The ultrasonic end crushing device crushes the zipper tape to a thickness at which the fitting convex portion and the fitting concave portion of the crushing portion are integrally welded.
請求項1または請求項2に記載のジッパ端部形成装置において、
前記ジッパ供給装置は、前記超音波端部押し潰し装置の前記ジッパテープの繰出し方向上流側に設けられて前記ジッパテープにテンションを掛けるテンション付与手段と、
該テンション付与手段と前記超音波端部押し潰し装置の間に位置する前記ジッパテープを保持して、前記テンション付与手段からのテンションを遮断するテンション遮断手段とを備えることを特徴とするジッパ端部形成装置。
In the zipper edge part forming device according to claim 1 or 2,
The zipper supply device is provided on the upstream side in the feeding direction of the zipper tape of the ultrasonic end crushing device, and tension applying means for applying tension to the zipper tape;
A zipper end forming unit comprising: a tension blocking unit configured to hold the zipper tape positioned between the tension applying unit and the ultrasonic end crushing device and to block a tension from the tension applying unit. apparatus.
請求項1または請求項2に記載のジッパ端部形成装置において、
前記ジッパ供給装置には、前記ジッパテープを繰出すための第1駆動手段と第2駆動手段が、前記超音波端部押し潰し装置を挟んで前記ジッパテープの繰出し方向上流側と下流側にそれぞれ設けられるとともに、前記第1駆動手段と前記第2駆動手段の駆動を制御して前記ジッパテープのテンションを調整する制御装置が設けられていることを特徴とするジッパ端部形成装置。
In the zipper edge part forming device according to claim 1 or 2,
The zipper supply device is provided with first drive means and second drive means for feeding the zipper tape on the upstream side and the downstream side, respectively, in the feed direction of the zipper tape with the ultrasonic end crushing device interposed therebetween. In addition, a zipper end forming apparatus is provided, wherein a control device for adjusting the tension of the zipper tape by controlling the driving of the first driving means and the second driving means is provided.
請求項3記載のジッパ端部形成装置において、
前記テンション遮断手段が、前記超音波端部押し潰し装置の前記繰出し方向上流側に、前記ジッパテープを巻き掛けて設けられた上流側ローラと、該上流側ローラに向けて進退可能に設けられ、進出時に前記上流側ローラとともに前記ジッパテープを挟持して保持する保持ストッパとを備えて構成されていることを特徴とするジッパ端部形成装置。
The zipper end forming apparatus according to claim 3, wherein
The tension blocking means is provided on the upstream side in the feeding direction of the ultrasonic end crushing device, and is provided with an upstream roller provided around the zipper tape, and capable of moving forward and backward toward the upstream roller. A zipper end forming apparatus characterized by comprising a holding stopper that pinches and holds the zipper tape together with the upstream roller.
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011046141A1 (en) * 2009-10-14 2011-04-21 出光ユニテック株式会社 Zipper tape, packaging bag with zipper tape, method for producing packaging bag with zipper tape and production device therefor
JP2014024591A (en) * 2012-07-30 2014-02-06 Ishida Co Ltd Lateral seal device of packing machine
JP2018069624A (en) * 2016-10-31 2018-05-10 株式会社東京自働機械製作所 Zipper bonding apparatus and zipper end part formation device

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03183534A (en) * 1989-12-13 1991-08-09 Iwata:Kk Apparatus for manufacturing bag with fastener and manufacture thereof
JP2006282189A (en) * 2005-03-31 2006-10-19 Tokyo Autom Mach Works Ltd Bag with zipper, zipper end molding apparatus, and apparatus for gluing zipper

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03183534A (en) * 1989-12-13 1991-08-09 Iwata:Kk Apparatus for manufacturing bag with fastener and manufacture thereof
JP2006282189A (en) * 2005-03-31 2006-10-19 Tokyo Autom Mach Works Ltd Bag with zipper, zipper end molding apparatus, and apparatus for gluing zipper

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011046141A1 (en) * 2009-10-14 2011-04-21 出光ユニテック株式会社 Zipper tape, packaging bag with zipper tape, method for producing packaging bag with zipper tape and production device therefor
JP2014024591A (en) * 2012-07-30 2014-02-06 Ishida Co Ltd Lateral seal device of packing machine
JP2018069624A (en) * 2016-10-31 2018-05-10 株式会社東京自働機械製作所 Zipper bonding apparatus and zipper end part formation device

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