| 摘要 |
<p>Machine for packing loose goods in plastic bag includes a roll of foil hose from which is pulled off a predetermined length corresponding to the produced bag length and moved to a station for welding bottom seam of the bag. The welded bag which is separated from the foil hose at a cutting station is then positioned on a filling socket of the machine. When the side edges of the foil hose (2) pulled off the storage roll are not running straight they are brought in contact with a feeler (3, 4) which when activated is pivoting a rotatably mounted lever (5, 6). The free end of the lever (5, 6) is fitted with a pin (9m10) which activates an initiator (11, 12) to start a reversible motor driving a shaft rotatably mounted in bearings. The shaft has a thread which moves a cam disc projecting in slot of shaft.</p> |
