The sticker Labeling Machine is the most common type of labeling machine in recent years, and its technology is also improving rapidly. For pharmaceutical manufacturers, higher requirements will be raised, whether it is from the labeling production equipment, or from the self-adhesive label and the bottle body to be attached. Now facing the domestic market of Sticker Labeling Machines, how can drug manufacturers choose Sticker Labeling Machines with higher cost performance will be a problem that people pay attention to. In this paper, BEILT discusses the selection points of the Sticker Labeling Machine from four aspects: main function and control, label feeding speed, printing speed and output, special purpose, and labeling quality.

1. Main function selection of Sticker Labeling Machine

In the past, the labeling position detected by the Sticker Labeling Machine used the leading edge of the bottle as the photosensitive point. Because bottles of different diameters need to be moved correspondingly or the labeling time needs to be changed, if this change is not made, the labeling cannot be guaranteed on each bottle. in the required position.

And now the products are equipped with an "automatic calculation of label length" function, this function can effectively make up for the above weaknesses. "Automatically calculate label length" is an automatic control technology formed by the combination of PLC and Sticker Labeling Machine servo motor technology. When the conveyor belt bottle passes through the detection electric eye, the radius of the bottle is measured, and the most protruding point on the outer edge of the bottle is taken. The point is used as the sensing point of the labeling signal of the Sticker Labeling Machine, that is, no matter how small the diameter of the bottle is, the most protruding point on the outer edge of the bottle is the sensing point of the labeling signal, so that the distance between the electric eye and the peeling plate does not need to be determined. Mechanical adjustment, Sticker Labeling Machine does not need to adjust the time of marking, this is the automatic control principle of "automatic calculation of label length". This is also one of the go-to points for what a Sticker Labeling Machine should do.

2. Selection of Sticker Labeling Machine control system

In terms of the synchronization of control speed, in addition to the above-mentioned "automatic calculation of label length" function, the Sticker Labeling Machine should also automatically complete the synchronous adjustment of conveyor belt speed, labeling speed, labeling length, etc., which is also the same as the traditional Sticker Labeling Machine. The difference is the guarantee of labeling quality stability. The control speed of the traditional Sticker Labeling Machine is adjusted based on human experience, and the difficulty of manual adjustment is that all actions are difficult to synchronize. Without synchronization, the labeling process will change frequently, resulting in poor labeling quality.

In the control system of the Sticker Labeling Machine, the control system of the first choice (PLC+man-machine interface) is the main control system. Compared with the early single-chip computer (single-board computer), using a general-purpose PLC as the main control device can make the PLC control system achieve the following: Purpose:

(1) More stable and reliable;

(2) The maintenance in the future is more convenient and the upgrade is simpler;

(3) It can be easily controlled online with the upper and lower stations.

In addition, it is also necessary to consider adding a vision system to the Sticker Labeling Machine, which can perform real-time detection, control and alarm on the integrity of printing, the condition of word grains, and whether the label after labeling is complete or not.

3. The delivery speed of the Sticker Labeling Machine

Nowadays, people often fail to comprehensively confirm the label width and printing speed when matching the output of the Sticker Labeling Machine. It is unreasonable to choose only the highest output index in the sample of the manufacturer of the Sticker Labeling Machine because the general manufacturer of the Sticker Labeling Machine The maximum yield index given by the sample is based on a certain label length and a certain printing method. Therefore, in the selection of the output of the Sticker Labeling Machine, the label feeding speed should be first checked. In theory, the relationship between the label feeding speed of the Sticker Labeling Machine and the labeling output is: Q=1000V/(L+a)

Among them: Q is the maximum labeling output calculated by the maximum label feeding speed, pieces/min; V is the maximum label feeding speed, m/min; L is the length of a single label, mm; a is the spacing between labels, mm.

For example, when labeling a bottle with a diameter of φ36, L=52mm, a=3mm, V=25m/min, then Q=454 pieces/min. That is when you choose V=25m/min, and considering other factors, when the labeling length L=52mm, the maximum labeling output can only be in the range of 400 pieces/min, not to mention the speed increase or replacement of longer labels in the future.

In the domestic market, the maximum label delivery speed of the general Sticker Labeling Machine product is 38m/min, and the company with technical strength sets the maximum label delivery speed of the product as 70m/min. It can also adapt to the label length change (variable length); the high label feeding speed is based on the quality of mechanical hardware, high component configuration, and servo control technology, which cannot be manufactured by ordinary manufacturers, and its value just reflects the manufacturing The professional and technical level of the business.

Well, the above is all the content about the purchase of the Sticker Labeling Machine that BEILT brings to you today. When purchasing a Sticker Labeling Machine, you need to pay attention to three aspects: the main function, the control system, and the delivery speed Sticker Labeling Machine. More about labeling machines can be found in our previous articles:

The working principle and characteristics of the labeling machine

Classification of labeling machines and solutions to common faults