Method of peeling protective sheet for prepreg sheet and apparatus for peeling protective sheet from prepreg sheet

An apparatus for peeling a protective sheet from a prepreg sheet, comprising:

• a mounting table;
• a movable arm configured to hold the prepreg sheet attached with the protective sheet to move the prepreg sheet on the mounting table and arrange the prepreg sheet so that an edge section of both the prepreg sheet and the protective sheet overhangs the mounting table as an impact tip;
• a peeling trigger section configured to rotate a wing section that impacts a part of the impact tip of the prepreg sheet and the protective sheet which overhangs the mounting table so that at least a part of the protective sheet is peeled from the prepreg sheet;
• a peeling section configured to
• hold by suction the protective sheet by use of a suction pad supported by a movable section with a vertical mobility, and
• completely peel the protective sheet from the prepreg sheet;
• a determination section configured to determine a fiber direction of the prepreg sheet by use of a Charge Coupled Device camera and an image recognition processing device;
• and
• a control section configured to control an angle between a first direction, which is the fiber direction of the prepreg sheet, and a second direction, which is a direction of an edge section of the mounting table that the prepreg sheet and the protective sheet overhang, wherein the angle is greater than 30 degrees and smaller than 150 degrees.