| 摘要 |
Pneumatic apparatus for drawing binding strip from a stock roll, winding a length of the strip around a bunch of water cress, severing that length from the strip stock and twisting the ends of the length of strip together to form a tie around the bunch. The apparatus includes a two-armed lever. One of the arms is arcuate and has a profiled end which is adapted to engage the leading end of the length of strip and, as the lever is swung about its fulcrum, to push that leading end around the bundh into a bight in the periphery of an apertured disc. The trailing end of the length of strip is located within the aperture of the disc so that it is held from following the leading end. The disc is rotated to twist the two ends together and the lever is then swung back so that the other arm ejects the bound bunch from the apparatus.
|
