Patent ID: 6990884

Claim:
A vertical rotary trimming apparatus for trimming a material comprising: a base for placing the material; a rail mounted on the base; a plurality of trimming elements for trimming the material; a carriage slidably mounted on the rail; an engagement device, wherein the plurality of trimming elements are rotatably connected to the engagement device, the engagement device capable of actuating the plurality of trimming elements by rotating on a plane perpendicular to the base, and the engagement device comprising a plurality of engagement units; and a fixer for engaging with the engagement units of the engagement device in order to fix the positions of the engagement device and the plurality of trimming elements, the fixer comprising: a first unit fixed on the carriage; and a second unit, wherein one end of the second unit is connected with the first unit and the other end of the second unit is for engaging with an engagement unit of the engagement device in order to fix the positions of the engagement device and the plurality of trimming elements.