DEVICE FOR DETECTING CONVEYANCE AMOUNT OF PLATE-SHAPED OBJECT, DEVICE FOR CUTTING PLATE-SHAPED OBJECT, METHOD FOR DETECTING CONVEYANCE AMOUNT OF PLATE-SHAPED OBJECT, DEVICE FOR FORMING CUTTING LINE ON PLATE-SHAPED OBJECT, AND METHOD FOR FORMING CUTTING LINE ON PLATE-SHAPED OBJECT

摘要

PROBLEM TO BE SOLVED: To provide a device for detecting the conveyance amount of a plate-shaped object which can correctly detect the conveyance amount of the plate-shaped object, and a device for cutting the plate-shaped object.SOLUTION: The gauge diameter of a roller 102 has been stored in a controller of the device 100 for detecting the conveyance amount. The controller compares this gauge diameter with the diameter of the roller 102 measured with a laser displacement gauge 104 to thereby obtain a variation, calculates a correction value corresponding to the variation, and corrects the calculated conveyance amount of strip-shaped plate glass G on the basis of the correction value. In a method for detecting the conveyance amount of the strip-shaped plate glass G with the device 100, when information showing the diameter of the roller 102 measured with the laser displacement gauge 104 is output to the controller, the controller compares the diameter with the prestored gauge diameter of the roller 102 to thereby determine a variation in the diameter of the roller 102. The controller calculates a correction value corresponding to the variation and corrects the conveyance amount of the strip-shaped plate glass G on the basis of the correction value.