Raw silk yarn thickness detector for denier

The utility model discloses a fineness machine raw silk thread thickness detector, which comprises a detector frame, a mounting platform, a slide rail, a slide plate, an air cylinder, a mounting frame, an electronic yarn clearer and a console, the mounting platform is fixedly arranged on the detector frame, and the slide plate is arranged on the mounting platform through the slide rail in a sliding manner; the cylinder is fixedly mounted on the mounting platform, and the sliding plate automatically moves back and forth through the cylinder; a row of electronic yarn cleaners are arranged on the sliding plate through a mounting frame; the control table is fixedly arranged on the side edge of the mounting platform, and the air cylinder and the electronic yarn clearer are electrically connected with the control table. According to the technical scheme, an auxiliary raw silk yarn thickness detector is designed for a QDJ920-II type denier machine, the QDJ920-II type denier machine does not need to be changed at all