Twine winding assembly

In a textile winding assembly, a cylindrical spool adapted to have a textile strand wound on its periphery, said spool being unitary and formed entirely of structural foam, said spool having a central axial through bore of predetermined constant diameter, and said spool provided in its opposite end faces with recesses of equal depths below the end faces and substantially equal diameters and forming on said spool a pair of opposite end flat spool locator faces below the spool end faces and annular flange portions surrounding the locator faces, and a spindle for supporting and driving the spool rotationally on the axis of said bore and adapted to be coupled to a rotational element of a winding machine, said spindle having an elongated shank portion insertable entirely through said bore and having bore-engaging projections which extend radially beyond the diameter of the bore, whereby entry of the shank portion through said bore will deform said bore permanently by crushing said structural foam adjacent to said projections and thereby allowing said spindle to create a positive interlocking driving engagement with said spool, and a pair of radiating lugs on said spindle projecting beyond opposite sides of said shank and having a pair of flat end faces in lateral alignment across the shank, said end faces adapted to abut one of said flat spool locator faces when said spool is assembled on the spindle.