Demolding device for wire harness protective sleeve

The utility model discloses a demoulding device for a wire harness protective sleeve, which comprises an upper mould and a lower mould, a plurality of profiled grooves are arranged on the lower mould, a plurality of profiled columns corresponding to the profiled grooves are arranged on the upper mould, air grooves are arranged inside the profiled columns, and a material injection pipe and an air inlet pipe are arranged above each profiled column. A plurality of demolding holes are evenly formed in the side wall of the mold column, demolding assemblies are arranged in the demolding holes and comprise limiting plates, demolding columns and reset springs, the limiting plates are fixedly connected into the demolding holes, sliding holes are formed in the centers of the limiting plates, the demolding columns are divided into front end columns and rear end columns, and connecting columns are fixedly connected between the front end columns and the rear end columns. The connecting column is slidably connected into th