Plastic article or earthenware shaping or treating: apparatus – Press forming means – press reshaping means – or vulcanizing... – Cooperating endless belts
Patent
1977-09-13
1979-02-20
Spicer, Jr., Robert L.
Plastic article or earthenware shaping or treating: apparatus
Press forming means, press reshaping means, or vulcanizing...
Cooperating endless belts
100151, B29C 1500
Patent
active
041404556
ABSTRACT:
A continuously operating double belt press is provided in which the belts are formed from a plurality of articulated plates, which are in turn surrounded by endless steel bands which are pressed by low-pressure rollers and the plates against the material being compressed. Downstream of the plate belts, within the interior space surrounded by the pressing bands, respective large high-pressure rollers are disposed in facing relationship to one another. In order to improve the distribution and transfer of forces in the high-pressure zone adjacent the high-pressure rollers, a high-pressure endless belt is provided which surrounds the respective high-pressure rollers and runs between the high-pressure rollers and the pressing band. In preferred embodiments, reversing rollers are provided for the high-pressure endless belt, which reversing rollers serve to additionally press the high-pressure endless belt against the pressing band at a position spaced from the high-pressure rollers. Reversing rollers for this high-pressure endless belt are also provided spaced from the pressing band, and which serve to prevent sideways slippage of the high-pressure endless belt.
REFERENCES:
patent: 3621524 (1971-11-01), Sherwood
patent: 3837774 (1974-09-01), Ross et al.
patent: 3883285 (1975-05-01), DE Mets
patent: 3907473 (1975-09-01), DE Mets
patent: 3994648 (1976-11-01), Kornylak et al.
patent: 4004873 (1977-01-01), DE Mets
Konstruktiewerkhuizen de Mets N.V.
Spicer, Jr. Robert L.
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