Integrated process for preparing a continuous string of molded a

Details Integrated process for preparing a continuous string of molded a Integrated process for preparing a continuous string of molded a

1981-10-28

1984-05-01

Lowe, James B.

Plastic article or earthenware shaping or treating: apparatus

Control means responsive to or actuated by means sensing or...

264167, 425436R, 425441, 425545, 425556, 425588, 425DIG5, B29D 500, B29F 114

Patent

active

044458363

ABSTRACT:
Provided is a method and apparatus for molding and winding in a continuous operation a string of molded items. The molded items of the string or chain are molded in spaced relationship to one another and are connected by molded scrap connectors. The string of molded items is then advanced until only a trailing connector of the last molded item extends into the mold cavity. Upon subsequent molding operation, therefore, the subsequent molded item is molded integral with the existing string of molded items. The continuous string of molded items is kept under constant tension and wound periodically into a coil. The molding, advancing, tensioning and winding operations are all integrated and synchronized in order to provide a wound package which greatly facilitates its use in an automatic assembly operation. The synchronization of the molding, advancing, tensioning and winding operations also provide for an overall smooth and integrated system for forming the wound coils of molded items, which system can be run continuously with little supervision.

REFERENCES:
patent: 2569083 (1951-09-01), Wilhelm
patent: 2578123 (1951-12-01), Bendfelt
patent: 2686338 (1954-08-01), Morin
patent: 2829402 (1958-04-01), Morin
patent: 2965932 (1960-12-01), Knowles
patent: 3192298 (1965-06-01), Fisher
patent: 3364293 (1968-01-01), Culpin
patent: 3526368 (1970-09-01), Sanders
patent: 4008302 (1977-02-01), Erlichman
patent: 4226577 (1980-10-01), Sawada

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