Continuous-acting press with multi-layered press bands

Details Continuous-acting press with multi-layered press bands Continuous-acting press with multi-layered press bands

1984-04-26

1986-03-04

Feldman, Peter

Presses

Concurrent pressing and conveying

Endless conveyer type

100154, 100 93RP, 425371, 1565835, B30B 506

Patent

active

045734046

ABSTRACT:
A continuous-acting press, such as used in press laminates, chipboards, fiberboards, plywood, electrical laminates and the like into a continuous web, is made up of an upper and a lower multi-layered band set. Each band set passes over a pair of return rollers and includes a plurality of mutually contacting press bands. Lateral displacement of the press bands in the multi-layered band sets is prevented since alternating grooves and lands are formed in the contacting surfaces of the press bands so that the lands and grooves interengage. The grooves and lands are continuous in the travel direction of the band sets. To close the reaction zone formed by the space between the upper and lower band set, a wire travels along each of the opposite sides of the space at the same speed as the material being pressed and each wire seats in a pair of grooves formed in the mutually facing surfaces of the upper and lower multi-layered band sets. Accordingly, the space is closed and optimum process conditions for the material being pressed can be maintained.

REFERENCES:
patent: 3487143 (1969-12-01), Bergvall

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