Plastic article or earthenware shaping or treating: apparatus – Preform severing means – Configuration of cutting implement providing shaping cavity
Patent
1984-05-29
1986-03-25
Hoag, Willard E.
Plastic article or earthenware shaping or treating: apparatus
Preform severing means
Configuration of cutting implement providing shaping cavity
425364R, 425437, 425438, A21C 500, A21C 1110
Patent
active
045780277
ABSTRACT:
An apparatus acts upon an extrudate rope to form individual elements of predetermined size and shape which elements are separated from one another a predetermined distance. A die is used having a predetermined shape with indentations therein to press the extrudate rope against a support at predetermined locations. A conveyor belt is used to carry the extrudate rope in one direction, and the die is supported such that during the pressing operation the die forward speed matches the extrudate rope forward speed. A supporting table underlies the conveyor belt. The die has a pair of generally spherical indentations for shaping pieces from the extrudate rope. The die is formed of a non-stick material such as Teflon.RTM.. A chamber is located in an opposite surface of the die from each respective indentation, to serve as a plenum fluid supply to the indentations, bores connecting the respective opposing chambers to respective indentations. The fluid pressure in each indentation assists separation of a shaped piece of the extrudate rope from respective indentations. A plurality of extrudate ropes may be formed into pieces simultaneously, by using a plurality of dies in parallel, thereby allowing fast and economical separation of the extrudate ropes into pieces.
REFERENCES:
patent: 1800890 (1931-04-01), Johnston
patent: 1945755 (1934-02-01), Scruggs
patent: 2356406 (1944-08-01), Hislop
patent: 4276800 (1981-07-01), Koppa et al.
patent: 4460611 (1984-07-01), Suzuki
Koppa Daniel A.
Schaeder Walter
Hoag Willard E.
Kornutik Richard
Nabisco Brands Inc.
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