Abstract: The separation of plastic bottle caps is an indispensable part in the processing and recycling of plastic products, and a bottle cap separator is used to separate the bottle cap from the bottle. In this paper, the types and functions of bottle separator were analyzed, based on which the screwed bottle cap separator was designed, and the parts of bottle clamping and capping off were designed in detail. In the design, the feeding does not need to determine the posture of the plastic bottle, but it simply throws the plastic bottle into the feeding hopper at random.

Key words: bottle cap separator, scheme design, bottle clamping device, bottle cap spinning off mechanism