SUPERSONIC HORIZONTAL SEAL DEVICE FOR BAG-MAKING FILLING MACHINE

To provide a supersonic horizontal seal device for a bag-making filling machine, which can perform seal-packaging without causing a sealing failure such as a pin hole or an edge cut in a horizontal seal part.SOLUTION: Two lines of narrow projection pieces 50 linearly extending in a width direction of a cylindrical film 10 are arranged side by side in an opposite surface 42 holding the cylindrical film 10 with a seal surface of a horn during horizontal sealing in an anvil. Each projection piece 50 is provided with a first groove forming part 56 in which multiple first longitudinal grooves are formed corresponding to a first region 44 which overlaps a longitudinal seal part 14 in the cylindrical film 10 to form four layers. The first groove forming part 56 faces in second regions 46a and 46b which are outside the longitudinal seal part in the cylindrical film 10 and in which the film is two-layered and the first region 44 separated from boundaries 62 and 62 with the first region 44 during a horizontal seal is formed in the cylindrical film 10.SELECTED DRAWING: Figure 4 【課題】横シール部にピンホールやエッジ切れなどの密封不良を生じることなく、密封包装が可能な製袋充填機における超音波横シ-ル装置を提供する。【解決手段】アンビルにおける横シール時にホーンのシール面とで筒状フィルム１０を挟持する対向面４２に、筒状フィルム１０の幅方向に直線状に延在する細幅状の突出片５０が２条で並列に設けられる。突出片５０には、筒状フィルム１０における縦シール部１４が重なってフィルムが４重となる第１領域４４に対応して、多数の第１縦溝を形成した第１溝形成部５６が設けられる。第１溝形成部５６は、筒状フィルム１０に横シールを施す際に、筒状フィルム１０における縦シール部外であってフィルムが２重となる第２領域４６ａ,４６ｂと第１領域４４との境目６２,６２から離間した第１領域４４内に臨む。【選択図】図４