초록 ▼

An indexing motion apparatus and method for advancing and vacuum sealing a plurality of connected, preformed trays. The connected, preformed trays are supplied by an indexing conveyor belt assembly which delivers the preformed trays to an advancement mechanism indexingly driven by a programmable ser

An indexing motion apparatus and method for advancing and vacuum sealing a plurality of connected, preformed trays. The connected, preformed trays are supplied by an indexing conveyor belt assembly which delivers the preformed trays to an advancement mechanism indexingly driven by a programmable servo motor. After the preformed trays are loaded and evacuated, a flexible web of packaging material is disposed in overlying relation to the preformed trays and sealed thereto. A cutting mechanism severs the sealed, preformed trays longitudinally and transversely.

대표청구항 ▼

A packaging machine for use in combination with a series of preformed containers, each of which includes sidewall structure defining a cavity and a pair of opposed flanges extending laterally relative to the sidewall structure comprising: indexing means for supplying said preformed containers and te

A packaging machine for use in combination with a series of preformed containers, each of which includes sidewall structure defining a cavity and a pair of opposed flanges extending laterally relative to the sidewall structure comprising: indexing means for supplying said preformed containers and temporarily preventing the preformed containers from advancing thereon; movable advancement means for gripping the flanges of the preformed containers as the preformed containers are prevented from advancing on the indexing means and for subsequently advancing the preformed containers; wherein the indexing means comprises a conveying means for moving the preformed containers horizontally to the advancement means and vertically to enable the advancement means to grip the flanges of the preformed containers; loading means for loading a product into the cavities of the preformed containers; web supply means for supplying a flexible web of packaging material in overlying relation to the preformed containers after the preformed containers have been loaded, wherein the packaging material encloses the cavity of each container and overlies the container flanges; sealing means for sealing the flexible web of packaging material to the flanges of each preformed container; and programmable motor means for indexingly advancing said advancement means to move the preformed containers from the indexing means to the loading means, web supply means and sealing means.