Labeling standard and station adjustment of automatic labeling machine

Automatic labeling machine is a kind of equipment that uses adhesive to stick the label of paper or metal foil on the specified packaging container It can complete various operations such as plane pasting, single side or multi side pasting of packages, cylinder pasting, partial or full coverage cylinder pasting, concave and corner pasting, etc The labeling process is roughly that the drive wheel on the labeling machine rotates after the sensor sends the signal that the labeling object is ready to be labeled As the drum label is in tension state on the device, when the bottom paper clings to the stripper plate and changes direction, the front end of the label is forced to be separated and prepared for labeling due to the rigidity of its own material At this time, the labeling object is just at the lower part of the label Under the function of the labeling wheel, synchronous labeling is realized For the surface material of the automatic labeling machine, the hardness of the label is the key to the labeling, so it requires a certain strength and hardness of the surface material The backing paper is also an important index to control the automatic labeling It is required that the surface of the backing paper should be coated with silicon evenly with the same parting force; the thickness should be uniform with good tensile strength to ensure that it will not break when labeling; the thickness should be uniform with good transparency to ensure that the sensor correctly identifies the position of the label Release force, also known as peel force, is the force when the label leaves the backing paper The release force is related to the type and thickness of the adhesive and the silicon coating on the surface of the base paper, as well as the ambient temperature at the time of labeling The release force is too small, and the label is easy to fall off the label (off the backing paper) during the conveying process; the release force is too large, and it is difficult for the label to leave the backing paper, so it is unable to issue the label The technical indexes should be controlled synthetically to make the parting force within a reasonable range Adjustment of label station of automatic labeling machine (1) adjustment of rubber scraper and rubber roller: there shall be no gap between rubber scraper and rubber roller in the whole length If there is a gap, the rubber scraper can be adjusted by adjusting the eccentric bolt; (2) adjustment of rubber roller and label plate: there is only contact between the label plate and rubber roller without any pressure The gap is too large, and the glue on the standard plate is too much, resulting in glue rejection If the gap is too small and the contact is too tight, the glue will be squeezed away There is no glue on the half of the sign board The practice shows that the gap between the standard plate and the cot is 0.1mm-0.2mm, which is the best for Zui It can be realized by adjusting the bearing seat at the lower part of the cot and adjusting the bearing at the upper part of the cot if necessary.