| 摘要 |
Equipment for converting continuous lay-flat thermoplastic tubular film (De into bags (C) with integral hand holes (H), comprises a frame through which the film is passed, the frame, containing a pointed (B) blade (A) which can plunge or pivot to puncture an unsupported region (F) of the film, an ancillary mechanism (T) to generate transverse welds (E) at appropriate distances from the hand hole punctures, and a guillotine (G) to isolate successive bags. |
