Device for feeding self-adhesive or "pressure sensitive" labels to a labelling machine

Abstract

A device (1) for feeding self-adhesive or "pressure sensitive" labels to a labelling machine comprises a frame (2), supporting means (3) for a reel of a web with the labels attached to it, a station (5) for detaching the labels from the web, recovery means (6), return means (8), and means (10) for moving the web comprising: a motor-driven roller (11) and at least one unit (15) for pressing the web against the motor-driven roller (11) comprising at least one contact roller (16), mounted on a support (17), for clamping the web against the motor-driven roller (11). The support (17) being movable relative to the frame (2) between an operating position, with the contact roller (16) pressed against the motor-driven roller (11), and an insertion position, with the contact roller (16) distanced from the motor-driven roller (11). There being a switching element (18) associated with the support (17) which in their first configuration is in the operating position, in a second configuration is in an insertion position and in a third configuration is able to move between the insertion position and a maintenance position in which the contact roller (16) is further from the motor-driven roller (11) than in the insertion position.

Description

technical field [0001] The present invention relates to a device for feeding self-adhesive or "pressure sensitive" labels to a labeling machine. Background technique [0002] In particular, the invention relates to devices in which the labels are moved while being attached to the web, which is wound to form a roll supported by support means and subsequently unwound. Of particular interest are devices that use moving means and return elements to feed labels attached to the web to a label separation station where the labels are separated from the web so that the labels can be deterministically released The device is passed on to a labeling machine which applies labels, for example, to bottles. The label-free web is then recovered by a recovery device so that, for example, the web can be rewound to form a recovery roll, ie a label-free web roll thereon. An example of a device of this type is provided in patent application EP1619129 by the same applicant. [0003] In more det...

AI Technical Summary

Problems solved by technology

Such cleaning operations are rough, and therefore the mobile must sometimes be disassembled as described above to perform an in-depth cleaning

[0009] Also, in prior art installations, during high speed operation there may be loss of adhesion between the web and the motor driven roll

In particular, the web has the potential to slip suddenly, sliding on the motor driven rollers instead of moving integrally with the motor driven rollers

Also, also at high web feed speeds, there may be vibrations in the supports, which can lead to annoying noises

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