Plastic bag making apparatus

摘要

It is intended in an apparatus for successively making plastic bags that a plastic film 1 is cut by a Thomson blade 3 without making the Thomson blade 3 pressed with a large force. The Thomson blade 3 is brought into contact with the plastic film 1 on one of opposite sides of the plastic film 1 in a direction of thickness thereof while a rolling member 4 is brought into contact with the plastic film 1 and rolled and moved along the plastic film 1 and the Thomson blade 3 on the other side of the plastic film 1 in the direction of thickness thereof. The plastic film 1 is therefore sandwiched between and cut by the Thomson blade 3 and the rolling member 4 to successively make plastic bags.

主权项

1. An apparatus for successively making plastic bags comprising:
a feeding device by which a plastic film is fed intermittently in a direction of length thereof; a Thomson blade for contacting the plastic film on one of opposite sides of the plastic film in a direction of thickness thereof when the plastic film is stopped temporarily; and a rolling member for contacting the plastic film and rolled and moved along the plastic film and the Thomson blade in a direction of width of the plastic film on the other side of the plastic film when the plastic film is stopped temporarily, the plastic film being sandwiched between and cut by the Thomson blade and the rolling member to successively make the plastic bags.