| 摘要 |
<p>A glue applicator for a labelling system comprising a rotating vacuum drum (10a) which picks up labels and holds them on its surface by vacuum and transports each label from a label pickup station to a label delivery system, such system also comprising a glue wheel (11a) for applying glue to each label as it passes by the glue wheel on the vacuum drum. The glue wheel is formed with peripheral grooves (15a) spaced along its length, each of which is semi-circular in shape. A separation wire (12a) is lodged in each groove and is held taut with its ends anchored on opposite sides of the glue wheel. Each separation wire substantially completely fills its groove and is tangent to the projection of the glue wheel over the groove open face. A doctor blade (40) is provided which smoothes the glue on the glue wheel just in advance of contact of the glue wheel with the label.</p> |
