Macromolecule injection molding jig plate placing frame

The utility model relates to a macromolecule injection molding jig plate placing frame which comprises a placing frame body, at least one set of support layers which are oppositely arranged at intervals are arranged on the placing frame body, a supporting bin is formed between every two adjacent support layers, and a pair of positioning bases with opposite openings are arranged in each supportingbin and fixed to the inner sides of the adjacent support layers. Each positioning seat comprises channel steel fixed to the opposite faces of the supporting bin, a plurality of rotating rollers are connected to two side plates of the channel steel in a pivoted mode, clamping plates are arranged on the inner sides of the two side plates and located on the upper portions of the rotating rollers, andthe clamping plates are connected with the adjacent side plates through elastic pieces. The utility model provides a macromolecule injection molding jig plate placing rack facilitating heat dissipation, positioning and suppor