Process and apparatus for the continuous manufacture of a conveyor belt

Abstract

In a process for the continuous manufacture of a conveyor belt with rubber covering layers and with a reinforcing insert of longitudinal wire ropes, the wire ropes are maintained in tension and covered with an upper and lower covering layer of rubber. The raw belt constructed in this manner is then vulcanized by means of exposure to pressure and heat in a rotating installation. The innermost rubber cover layer in the radial direction is scorched prior to its placement on the outer cover layer and the longitudinal steel wires. An apparatus for the continuous manufacture of a conveyor belt with cover layers of rubber and with a reinforcing insert of longitudinal steel ropes has an extruder-calender arrangement (2, 4 and 3, 5, respectively) each for the production of the lower and upper cover layer (11, 12). At least one doubling installation (15, 17; 22, 23) is provided for the combining of the cover layers (11, 12). Between the extruder-calender (2, 4) producing the cover layer (11) resting on the press drum (16) during the finish vulcanizing process, and the doubling station (22, 23), a heating device (24, 26) is provided for the heating of the cover layer (11).

Dependencies are inferred from the claim text.