Bi-color super-thick cladding piece injection molding positioning die

The invention relates to a bi-color super-thick cladding piece injection molding positioning die which comprises a core and a positioning insert, wherein the upper end of the positioning insert and the lower end of a cladding piece are provided with corresponding connecting and fixing parts, a spring positioning structure is arranged on the core and comprises an inserting column insert arranged on the core, a round-head inserting column compressed by a spring is arranged in the inserting column insert, and is clamped in a round-head groove of the positioning insert, the core is further provided with a positioning device driven by an oil cylinder, the positioning device driven by the oil cylinder comprises a connecting insert arranged on the core, one end of the connecting insert is connected with a connecting rod driven by the oil cylinder, the other end of the connecting insert is connected with a positioning rod, and the positioning insert is provided with a groove for insertion of the positioning rod in a corresponding position, so that an insert can be prevented from deformation and displacement during injection molding, and thus uniform cladding of the surface can be ensured and the surface quality of products can be improved.