The utility model belongs to the technical field of vulcanizing tanks, and particularly relates to a constant-temperature vulcanizing tank which comprises a vulcanizing tank body, a tank cover is arranged on the top face of the vulcanizing tank body, a connecting column is fixedly installed on the top face of the tank cover, a heating
pipe is fixedly installed in the vulcanizing tank body, and two molds are rotatably installed in the vulcanizing tank body. The two molds are located on the two sides of the heating
pipe correspondingly, a tank bottom is fixedly installed on the bottom face of the vulcanizing tank, two first rotating shafts are rotatably installed in the tank bottom, the top ends of the two first rotating shafts are fixedly connected with the bottom ends of the two molds correspondingly, belt wheels are fixedly installed on the two first rotating shafts correspondingly, and the belt wheels are fixedly connected with the two molds. The same belt is arranged on the two belt pulleys; the transmission
assembly is arranged in the tank bottom, the heating
pipe is started to heat the vulcanizing tank, steam can be input into the vulcanizing tank through the steam inlet pipe at the moment, vulcanizing
processing of rubber products is promoted, and the rubber vulcanizing tank has the advantages of being practical and efficient.