Opposed cutting machine for end-of-life automotive tires

An opposed cutting machine for end-of-life automotive tires, comprising:

• a first opposed cutting machine body, comprising a first external expanding chunk provided with a plurality of first external expanding jaws, wherein the first external expanding chunk is rotatably disposed, and the plurality of first external expanding jaws are evenly distributed around a center of the first external expanding chunk and radially movable along the first external expanding chunk;
• a second opposed cutting machine body, comprising a second external expanding chunk provided with a plurality of second external expanding jaws, wherein the second external expanding chunk is rotatably disposed, and the plurality of second external expanding jaws are evenly distributed around a center of the second external expanding chunk and radially movable along the second external expanding chunk;
• and
• a saw blade feeding device, configured to cut tires, wherein
• the first external expanding chunk is disposed right opposite the second external expanding chunk, and one of the first external expanding chunk and the second external expanding chunk is configured to be movable toward the other.