Adhesive bonding and miscellaneous chemical manufacture – Surface bonding means and/or assembly means therefor – Longitudinally progressive helical winding means
Patent
1996-01-11
1997-12-23
Aftergut, Jeff H.
Adhesive bonding and miscellaneous chemical manufacture
Surface bonding means and/or assembly means therefor
Longitudinally progressive helical winding means
156441, 156498, 156499, 156523, 156574, B65H 8100
Patent
active
057003475
ABSTRACT:
A thermoplastic head for laying down a plurality of thermoplastic resin-impregnated tapes to form a composite. The head includes a clutch, of substantially equal static and dynamic friction coefficients, coupled to the tape spools to maintain the tapes under controlled tension; a tape guide assembly of unique design to align the tapes and prevent gaps between adjacent tapes; a guillotine-type shear cutter to cut off the tapes and a set of rethread rollers to hold the cut tapes to obviate the need for rethreading at the end of each tape lay down cycle; a heating assembly to provide high temperature heat on demand; and that provides cooler gas to avoid heat damage when the head is not laying down tape; unique compression rollers that are able to withstand high temperature operating conditions; and an actively cooled post-compression foot, with cooling fins, for cooling and consolidating laid down tape. The head has a tiltable roller assembly to accommodate edge misalignment and edge-stepdown.
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Aftergut Jeff H.
The Boeing Company
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