Automatic calibration method for a sleeve labeling machine

Abstract

An automatic calibration method for a sleeve labeling machine includes preparing a plurality of objects to be sleeved and a sleeve labeling machine (a preparing step). The sleeve labeling machine has a delivery device, a sleeve labeling device, an auxiliary decision device, and a heating device that are respectively disposed on a base. The method includes delivering the objects by the delivery device, sleeving a shrink label on each object by the sleeve labeling device, photographing the sleeved objects by the auxiliary decision device to thereby obtain a center point of the shrink label and a center point of the object which is sleeved by the shrink label. When a distance between two reference lines respectively defined by the two center points exceeds an error value, a sleeve labeling parameter of the sleeve labeling device is automatically adjusted (an adjusting step). The sleeved objects are subjected to a heating treatment executed by the heating device to allow the shrink labels to shrink and tightly wrap the objects (a heating step). Thus, the method is capable of simplifying an adjustment and calibration operation proceeded before a sleeve labeling operation, increasing the sleeve labeling accuracy, and reducing the waste of the shrink labels.

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