| 摘要 |
Arrangement for packing products, in particular loaves of bread, into plastic bags which are fed in the form of a continuous strip of plastic bags (15) with the help of a driving means (20) which advances the bags from a container (19) as far as the discharge track for the loaves. The driving means comprises an upper and a lower endless feed belt (21; 22) so arranged as to run along an upper and a lower bag-opening track (25; 26) and, by exerting a clamping effect, as to feed and guide an upper and a lower mouth flap on the bags. The aforementioned tracks (25; 26) are so arranged in a first part (32) as to diverge in order to move the flaps (17; 18) apart and provide sufficient space for an inserting device to introduce a product into the respective bag essentially at right-angles to the direction of feed of the bags. The tracks are so arranged in a second part (33) as to converge in order to bring the flaps together so that the bags can be closed. In order to improve the engagement with the flaps and to reduce the friction with the bag-opening tracks, an interjacent endless support belt is so arranged as to run around the respective track (25; 26) and to accompany it along the side facing towards the endless feed belt. In this way the support belts and the feed belts are in contact with one another and produce the aforementioned clamping effect against the bag flaps. |
