| 摘要 |
A strap feeding and tensioning machine is disclosed wherein strap is fed at a high rate of speed about a package so as to form a loop which is then tensioned and subsequently can be sealed. The loop is formed so that the leading end of the strap is overlapped by a trailing end of the strap and the resulting overlapped strap portions are joined together by means of an external seal, by friction fusion, or in any other convenient manner. The feeding and tensioning mechanism comprises a rotatable winder drum equipped with a pair of arcuate feed guide means, a feed wheel rotatably mounted on the winder drum, and reversible driving means for the winder drum and the feed wheel. |
