초록 ▼

A method and apparatus for trimming molded hollow plastic articles having flash and a finish for a closure. Articles are moved in succession through the load, deflashing, facing, inspection, rejection and unload stations of a trimming apparatus by vacuum heads. The articles are picked up by vacuum h

A method and apparatus for trimming molded hollow plastic articles having flash and a finish for a closure. Articles are moved in succession through the load, deflashing, facing, inspection, rejection and unload stations of a trimming apparatus by vacuum heads. The articles are picked up by vacuum heads and transferred through the stations by intermittent rotation of a turret carrying the vacuum heads. To ensure proper location, each article is picked up in the load station by a vacuum head and continuously engaged by this vacuum head throughout the deflashing, facing and inspection stations and into the unloading station unless rejected and released in the rejection station. To facilitate loading, unloading and operations in the work stations on the articles, their orientation can be changed from one station to another. To enable variation of the cycle time of the apparatus, the turret and the operating mechanism in the various stations is driven by a common variable speed drive. To enable the apparatus to trim runs of articles of different sizes, the position of the operating mechanism of the various work stations with respect to the vacuum heads for carrying articles can be adjusted.

대표청구항 ▼

An apparatus for trimming a hollow plastic article having flash and a finish for receiving a closure which comprises: a base, a plurality of stations about said base including a load station associated with said base, an unload station circumferentially spaced from said load station, a turret rotata

An apparatus for trimming a hollow plastic article having flash and a finish for receiving a closure which comprises: a base, a plurality of stations about said base including a load station associated with said base, an unload station circumferentially spaced from said load station, a turret rotatably mounted on said base about an axis with respect to said base, means for intermittently rotating said turret, a plurality of vacuum heads for picking up the articles, means for selectively applying vacuum to said vacuum heads, means for mounting each said vacuum head on said turret, in circumferentially spaced relation for intermittent rotation with respect to said base, means for moving each said vacuum head for picking up and engaging an article at said load station, releasing an article at said unload station, and continuously engaging the same article throughout all stations between said load and unload stations unless such same article is rejected and released prior to said unload station, a loader apparatus at said load station constructed and arranged to present articles for picking by vacuum heads, a deflash station associated with said base, circumferentially spaced between said load and unload stations, a deflasher apparatus at said deflasher station including opposed dies for holding a hollow plastic article and means for removing flash from an article while such article is being held by said dies and is continuously engaged by an associated vacuum head, and a facing station associated with said base, circumferentially spaced between said load and unload stations, a facing apparatus at said facing station including nests for clamping a hollow plastic article and including a facer tool for removing material from a finish of an article to form an opening for receiving a closure while such article is being clamped by said nests and continuously engaged by an associated vacuum head.