Composite rubber ring hot pressing device convenient to demould

The utility model belongs to the field of rubber ring production equipment, and particularly relates to a composite rubber ring hot pressing device convenient to demould, which comprises a base, the top of the base is fixedly connected with a support, the support is provided with an electric telescopic rod, and the bottom end of the electric telescopic rod is provided with an upper mould; and the lower mold is fixedly connected to the base, a mold cavity is formed in the lower mold, and a containing groove is formed in the bottom of the mold cavity. Through mutual cooperation of the supporting cylinder, the threaded rod and the ejector rod structure, finished rubber rings can be automatically demolded and discharged after the rubber rings are formed, the situation that the finished rubber rings are scrapped due to uneven stress or accidental scratches and the like in the manual demolding process is avoided, and through mutual cooperation of the containing groove and the sealing groove structure, the finished