Compression molding machine
AssigneeRexam Closure Systems Inc.
InventorsDaniel L. Mattice, B. Jack Rote
Life of this patent
Estimating the term…
Abstract
A compression molding machine includes a wheel mounted for rotation around a horizontal axis and a plurality of angularly spaced molds disposed around the wheel. Each of the molds includes a first mold segment and a second mold segment disposed radially outwardly of the first mold segment. Each of the second mold segments is movable radially with respect to the associated first mold segment between a radially inner closed position with the first mold segment for compression molding a plastic article, and a radially outer open position spaced from the associated first mold segment for removing a molded article from the mold and placing a mold charge into the mold.
Claims7
1-35. (canceled)
A method of compression molding plastic articles, which includes the steps of:
- (a) providing a wheel mounted for rotation around a horizontal axis and a plurality of angularly spaced molds disposed around said wheel, each of said molds including a first mold segment and a second mold segment disposed radially outwardly of said first mold segment,
- (b) rotating said wheel around said horizontal axis,
- (c) as said wheel rotates, radially moving each second mold segment in sequence with respect to the associated first mold segment between a radially inner closed position with said first mold segment and a radially outer open position spaced from the associated first mold segment,
- (d) with said mold segments in said open position, removing a molded article from said mold and placing a mold charge into said mold, and
- (e) closing said mold segments as said wheel rotates to compression mold plastic articles between said mold segments.
Dependencies are inferred from the claim text.