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Banding apparatus with floating mandrel

  • US 4,765,121 A
  • Filed: 05/22/1987
  • Issued: 08/23/1988
  • Est. Priority Date: 05/22/1987
  • Status: Expired due to Term
First Claim
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1. Apparatus for banding articles with heat-shrinkable plastic bands severed from tubing having transverse perforations at predetermined intervals, comprising in combination:

  • (1) means for opening said tubing comprising a floating mandrel, said mandrel being sized to fit slideably inside of said tubing and provided with means for engaging suspension means external of said tubing,(2) suspension means external of said tubing, in rolling or sliding contact with said engaging means, thereby maintaining the mandrel in a floating position,(3) unified means for feeding incremental lengths equal to the distance between perforations of heat-shrinkable plastic tubing over said mandrel and clamping said tubing,(4) tear-off means, located downstream of said feeding and clamping means, capable of tearing off an incremental length of tubing at said perforations located between the said unified feeding and clamping means and the tear-off means, thereby being capable of forming a band,(5) means for pushing the bands off the lower portion of said mandrel and onto the articles to be banded, and(6) means for conveying the banded articles to means for heat shrinking said bands.

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