Patent ID: 7947205

Claim:
A method for removing a dissimilar material, which is attached to a plastic product and is different from the material of the plastic product, from the plastic product, using a dissimilar material removing apparatus including a seat unit having a seat surface and a frame slidably disposed on the seat surface, a punching unit configured to remove the dissimilar material from the plastic product, and having a blade unit arranged to be insertable into a hole that penetrates the seat surface, and a working unit configured to move the blade unit vertically, comprising the steps of: placing the plastic product on the seat surface of the seat unit so that the plastic product is inside the frame; punching out a part to be removed by moving the blade unit down after positioning the part to be removed under the blade unit of the punching unit by moving the frame with the plastic product on the seat surface; and removing the dissimilar material from the plastic product by repeating the punching step.