Rubber part mold core replacement jig tool

The utility model discloses a rubber part mold core replacement jig tool which comprises a sectional material connected with an external mechanical arm, a fixing plate installed on the lower portion of the sectional material and a rotating air cylinder installed on the lower portion of the fixing plate, and a jig block capable of penetrating through the middle of a mold core and supporting the mold core from the lower portion is installed on the lower portion of the rotating air cylinder. The jig block is driven by the rotary air cylinder to support the mold core from the lower portion, and the rotary air cylinder resets and is matched with the jig block to pull out the mold core. When the die core pulling-out mechanism acts, the piston rod of the rotating cylinder extends out to drive the jig block to penetrate through the middle part of the die core and support the die core from the lower part, and then the piston rod of the rotating cylinder is reset, so that the die core and rubber accessories on the side