Coating device and method for positioning die head thereof

Abstract

The present application discloses a coating device and a method for positioning a die head thereof. The method includes: acquiring a calibrated displacement corresponding to a die head when the die head moves to a first position; acquiring a real-time displacement of the die head when a driving mechanism drives the die head to move to a second position according to a preset spacing; monitoring, in real time, motion parameters of a servo motor using a built-in encoder within the driving mechanism; determining the real-time displacement as the difference between the calibrated displacement and the current displacement of the die head as measured by an external encoder; and, if the real-time displacement matches the preset spacing, determining that the die head is positioned at the target position.

Dependencies are inferred from the claim text.