Spin-bonding apparatus including an axially displaceable spinner

Details Spin-bonding apparatus including an axially displaceable spinner Spin-bonding apparatus including an axially displaceable spinner

1984-01-13

1984-09-04

Wityshyn, Michael

Adhesive bonding and miscellaneous chemical manufacture

Surface bonding means and/or assembly means therefor

Means assembling part within hole or aperture

156 69, 156 735, 156497, 156580, B29C 2708, B65B 728

Patent

active

044695470

ABSTRACT:
Improved spin-bonding apparatus is disclosed for connecting a synthetic plastic end closure member to a composite container body wall, including an axially displaceable spinner member that is operable to an axially extended position in which it is rotated relative to the stationary mandrel by the rotatably driven spindle when the mandrel and spindle are in an initial axially spaced condition. The spinner member continuously supports the inner periphery of the sealing fin as the mandrel and spindle are displaced axially together toward their adjacent spin-bonding condition, whereby the sealing fin is protectively supported prior to positive spin bonding thereof to the synthetic plastic inner liner of the container body wall. The stationary mandrel is provided at its free end with a unitary sizing portion having a closely toleranced cylindrical surface for causing the free extremity of the container body wall to have a circular configuration. The spinner member is provided with an annular lead-in ridge at its end adjacent the stationary mandrel, thereby to further protect the free end of the sealing fin during axial displacement of the mandrels.

REFERENCES:
patent: Re29448 (1977-10-01), Brown et al.
patent: 3316135 (1967-04-01), Brown et al.
patent: 3690088 (1972-09-01), Anderson et al.
patent: 3824145 (1974-07-01), Flax
patent: 3982980 (1976-09-01), Van Manen
patent: 4226652 (1980-10-01), Berg
patent: 4411726 (1983-10-01), Woerz et al.

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