| 摘要 |
<p>A sealing unit for enhancing sanitation and flap moldability of a packaging container comprising a heat seal jaw, a heat seal bar (29) having a working surface, provided with two heaters arranged in parallel and being fixed to the heat seal jaw, a counter jaw disposed oppositely to the heat seal jaw, a counter rail (28) having a working surface and being fixed to the counter jaw, a drive means for advancing/retracting the heat seal jaw and the counter jaw relatively, a heating means for actuating the heaters while clamping a packaging material by the working surface of the heat seal bar and the working surface of the counter rail, and a cutter section comprising a cutter (51) disposed at the position of two heaters and a resilient counter cutter (53) disposed oppositely to the cutter (51), characterized in that the counter cutter (53) is held by a holding part (52) provided on the working surface of the heat seal bar or the counter rail and projecting from the working surface thus held.</p> |
