Plastic article or earthenware shaping or treating: apparatus – With means applying coating material to work or work contact... – Separate means applying material directly to shaping means,...
Patent
1992-01-28
1993-08-24
Nguyen, Khanh P.
Plastic article or earthenware shaping or treating: apparatus
With means applying coating material to work or work contact...
Separate means applying material directly to shaping means,...
425107, 425186, 425188, 425192R, 425384, 425461, 26421113, B29C 4794
Patent
active
052383768
ABSTRACT:
This shaping device, designed to subject the linearly extruded product to a continuous cooling operation or hot vulcanization operation during shaping is in the form of a tunnel (1) the outer casing of which has incorporated internal channels (A) which do not open out into the inside of this outer casing and which circulate a liquid or fluid at a temperature determined on the basis of the cooling or vulcanization operation chosen, this tunnel having on the inside, mounted in a vertical position, several matrices (FIG. 6) fitted against one another, each matrix, in the form of a monoblock laminated plate, having a central calibrated passage for shaping of the product extruded and under extrusion, and also a first radial network (9) for introduction of a gaseous fluid, at a temperature determined on the basis of the operation chosen, coming from the channels (B) inside the outer casing, for distribution of the gaseous fluid under pressure, in the direction of the central passage and over the outside of the extruded product being fed through this passage, and also a second radial network (8) for suction of the used gaseous fluid from the central passage in the direction of the suction channels (C) inside the outer casing.
REFERENCES:
patent: 4179256 (1979-12-01), Tomioka et al.
patent: 4247271 (1981-01-01), Yonekura et al.
patent: 4353861 (1982-10-01), Caser
patent: 4356143 (1982-10-01), Hill et al.
patent: 4564486 (1986-01-01), Wherry
Eropol Finance et Developpement
Nguyen Khanh P.
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