Common labeling methods of the three most popular

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Three commonly used labeling methods of labeling machines

with the development of economy and the improvement of people's living standards, each kind of circulating commodity needs to indicate the production date, shelf life and other relevant information. Packaging is the carrier of information, and labeling of commodities is the way to achieve. Labeling machine is a machine that labels packages or products. It not only has a beautiful effect, but also can realize the tracking and management of product sales, especially in the pharmaceutical, food and other industries. In case of abnormalities, it can accurately and timely start the product recall mechanism. Labeling machine is an indispensable part of modern packaging. At present, the types of labeling machines produced in China are gradually increasing, and the technical level has also been greatly improved. It has shifted from the backward situation of manual and semi-automatic labeling to the pattern of automatic high-speed labeling machines occupying the vast market. At present, there are three types of labeling machines. The labeling control valve adopts the manual control valve method of well-known domestic manufacturers:

first, the suction method (or air suction method)

this is the most common labeling technology. When the label paper leaves the conveyor belt, it is distributed on the vacuum pad, which is connected to the end of a mechanical device. When the mechanical device extends until the label contacts the package, it retracts, and then the label is attached to the package. This technology reliably realizes correct labeling with high accuracy. This method is very applicable to the top or side labeling of product packages with certain changes in height, or the side labeling of packages that are difficult to move, but its labeling speed is slow and the labeling quality is general

second, the blowing method (or jet method)

some operation modes of this technology are similar to the above-mentioned suction method, that is, place the label on the surface of the vacuum pad and fix it until the attachment action begins. However, in this method, the vacuum surface remains stationary 1 The experimental process is controlled by the exchange servo electromechanical and exchange servo speed regulation system. The label is fixed and positioned on a vacuum grid, which is a plane with hundreds of small holes, which are used to maintain the formation of air jet. These air jets blow out a stream of compressed air with strong pressure, which moves the label on the vacuum grid and makes it stick to the packaged items. This is a complex technology with high accuracy and reliability

III. wiping and pasting method (or brushing and pasting method)

this method is also called synchronous labeling method. When labeling, when the leading edge of the label is pasted on the package, the product will take the label away immediately. In this labeling machine, this method can be successful only when the passing speed of packages is consistent with the speed of label distribution. This is a technology that needs to maintain continuous operation, so its labeling efficiency is greatly improved, and it is mostly suitable for high-speed and efficient automated packaging production lines

generally, the labeling accuracy of these methods is not high. However, the patented technology invented by our company (not introduced here) perfectly solves this problem, greatly improves the labeling accuracy and the stability of the equipment without affecting the efficiency, and reduces the difficulty of equipment adjustment

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