초록 ▼

A blow molding apparatus wherein a plurality of circumferentially spaced sets of molds are provided for rotation about a horizontal axis and plastic material is extruded in tubular form between the mold sections of each set of molds and the molds are closed and the portion of the plastic within each

A blow molding apparatus wherein a plurality of circumferentially spaced sets of molds are provided for rotation about a horizontal axis and plastic material is extruded in tubular form between the mold sections of each set of molds and the molds are closed and the portion of the plastic within each mold section is blown to form a hollow article, a slide assembly for mounting the radially outermost mold section of each set of molds comprising a base, a slide on the base providing a mold support for one mold section and adapted to move radially toward and away from the other mold section associated with the section supported by the slide, a cam follower slidable upon the base and linkage between the cam follower and the slide operable to provide a rapid movement of the mold support radially inwardly and radially outwardly as the cam follower follows an annular cam in the machine.

대표청구항 ▼

In a blow molding apparatus wherein a plurality of circumferentially spaced sets of molds are mounted on a wheel plate for rotation about a horizontal axis and plastic material is extruded in tubular form between the mold sections of each set of molds and the molds are closed and the portion of the

In a blow molding apparatus wherein a plurality of circumferentially spaced sets of molds are mounted on a wheel plate for rotation about a horizontal axis and plastic material is extruded in tubular form between the mold sections of each set of molds and the molds are closed and the portion of the plastic within each mold section is blown to form a hollow article, wherein each set of molds includes a movable mold section and a fixed mold section, wherein the improvement comprises a slide assembly for mounting the movable mold section of each set of molds, said slide assembly comprising: a base, mounted on said wheel plate, a slide on said base supporting said movable mold section and movable radially inwardly toward and radially outwardly away from said fixed mold section, a cam follower slidable radially upon said base, and linkage means between the cam follower and the slide operable to move the slide and, in turn, the movable mold section mounted thereon in a radial direction at a multiple of the radial movement of the cam follower to provide a rapid movement of the movable mold section radially inwardly and radially outwardly as the cam follower follows an arcuate cam on the apparatus.