| 摘要 |
A band strapping machine having more than one supply reel and having a mechanism that automatically loads a band from a second supply reel when a first supply reel becomes empty. The trailing end of a band from the first band reel is grabbed so that it is not introduced into the machine's pool box and the band previously accumulated in the pool box is fed through the machine and used to accomplish a final strapping operation. The part of the band not needed to complete the final strapping operation is ejected from the machine by reverse rotation of a pool roller. The leading end of the replacement band is then gripped and a band guide unit moves into position to guide the replacement band through the machine's band guide arch to the machine's feed unit. Once the leading end of the replacement band has attained a preselected position, a coveyor line carrying articles to be strapped is re-started and a package is strapped with the band in the band guide arch. The band guide then retracts, the pool roller rotates to again fill the pool box, and the machine's normal strapping operation resumes. An operator changes the empty reel while the machine is operating.
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