Pore-free tire segmented mold pattern block, segmented mold, and cleaning methods therefor

The pore-free tire segmented mold pattern block according to claim 1, characterized in that, the exhaust channel further comprises an exhaust gap, a circumferential exhaust slot and radial exhaust slots; the exhaust gap is located between two adjacent pattern pieces, and communicated with the inner circumference surface of the pattern block, with a depth enabling the gas in a mold cavity in a vulcanization process to be discharged while the rubber does not flow out; the circumferential exhaust slot is circumferentially extended and formed between two adjacent pattern pieces, and located outside the exhaust gap; the radial exhaust slots communicate the circumferential exhaust slot with the axial exhaust holes.

The pore-free tire segmented mold pattern block according to claim 1, characterized in that, each pattern block comprises lateral axial exhaust holes near lateral sections of the pattern block and a central axial exhaust hole.

The pore-free tire segmented mold pattern block according to claim 1, characterized in that, each pattern piece is formed with two or more fastening screw holes, so that fastening screws can be placed and fixed therethrough after stacking; locating pin holes are opened along the axial direction on each pattern piece, so that locating pins can be inserted therethrough; by using the fastening screws and the locating pins, the respective pattern pieces are stacked one on top the other in sequence to form the pattern block.

A pore-free tire segmented mold, comprising a plurality of pattern blocks according to claim 1, the exhaust channel is communicated with the interior and the exterior of the mold; the axial exhaust holes of the exhaust channel are axially disposed on the pattern block, communicate each pattern piece, and are communicated with the exterior of the mold; and when the mold is cleaned, the exhaust channel is used as a cleaning channel.