Automatic labeler

Claim 1

An automatic labeler comprising: (1) a label peeling-applying unit including a rotary drum having at least one label-sucking slit at the periphery thereof, vacuum being applied to the label-sucking slit when it receives a label from a mounted label feeding reel and the vacuum being released from the label-sucking slit when the thus received label is applied to an article, (2) a mounted label feeding unit including (i) a support plate provided at its forward end with (ii) a peeling means at which a mounted label from the mounted label feeding reel is bent to peel the tip of the label from the mount, the support plate being capable of being pivotally rotated so that the forward end thereof may, after sucking of the tip of the label onto the sucking slit of the rotary drum, arcuately move at the same peripheral velocity in the same direction as the rotary drum over such a distance as to peel the whole of the label from the mount and soon thereafter it may return to its original position for repeating the same peeling operation as above, (iii) a means for passing mounted labels towards the forward end of the support plate, (iv) a means for passing the label-peeled mount to a take-up reel and (v) a photoelectric detector sending a signal to stop the driving roll for a time required to peel the whole of the label from the mount, the signal being sent when the photoelectric detector detects the peeling of the tip of the label from the mount by bending the mounted label at the peeling blade, and (3) a conveyor unit so positioned that the label sucked onto the label-sucking slit of the rotary drum may contact with a to-be-labeled article on the conveyor to apply said label to the article while the label and the article are moving at the same velocity in the same direction, thereby ensuring satisfactory labeling without causing creases and swells in the applied label.