Tire two-half mold

The invention provides a tire two-half mold. The tire two-half mold comprises an upper mold body, a lower mold body, a lower steel ring and a rotating structure; tires are accommodated in a mold cavity formed by closing the upper mold body and the lower mold body; the lower steel ring is horizontally arranged on the lower mold body, and abuts against the tires; and the lower steel ring is embedded into the periphery of the rotating structure which is sleeved with the lower steel ring, and can rotate in the circumferential direction of the rotating structure. By means of the tire two-half mold, the problem that in the prior art, the vulcanization precision of tires which are vulcanized through tire two-half molds and provided with rotating patterns is low is solved. 本发明提供了一种轮胎两半模具。轮胎两半模具包括：上模体；下模体，轮胎容置在上模体和下模体合模形成的型腔内；下钢圈，下钢圈水平设置在下模体上并与轮胎抵接；转动结构，下钢圈套嵌在转动结构的外周并能够沿转动结构的周向转动。本发明解决了现有技术中利用轮胎两半模具硫化的具有旋向花纹轮胎的硫化精度较低的问题。