Plastic mold with double limiting structures

The utility model discloses a plastic mould with a double limit structure, which relates to the technical field of plastic moulds and comprises a main machine, a support is fixedly mounted at the top of the main machine, a slide way is arranged on the outer wall of one side of the support, a slide groove is arranged at the top of the main machine, a slide column is fixedly mounted on the inner wall of the slide groove, and the slide column is fixedly mounted on the inner wall of the slide groove. And a limiting column is fixedly installed at the top of the main machine and located on the outer wall of the support, and a second connecting block is fixedly installed at the top of the main machine. Materials are discharged to the lower die, the lower die is stretched and pulled through the hydraulic expansion piece, the lower die is pulled to the bottom of the upper die, and the lower die is connected and fixed through the second connecting block fixed to the top of the main machine and the small hydraulic expan