Labeling machines are widely used in the labeling of product packaging containers and packaging boxes in various industries. This article is provided by Xi'an Aerospace Engine Factory to introduce the working principle and scope of use of the labeling machine.
The beginning of the work process is that the box is fed to the labelling machine at a constant speed on the conveyor. The mechanical fixture separates the boxes by a fixed distance and pushes the box in the direction of the conveyor. The mechanical system of the labeler includes a drive wheel, a labeling wheel, and a reel. The drive wheel intermittently drags the label belt to move, the label tape is pulled out of the spool, and the label wheel is pressed against the box by the labeling wheel. An open-loop displacement control is used on the reel to maintain the tension of the label strip. Since the labels are closely connected to each other on the label strip, the label strip must be constantly stopped and stopped. The label is affixed to the box with the labeling wheel moving at the same speed as the box. When the conveyor reaches a certain position, the label drive wheel accelerates to match the speed of the conveyor belt, and then decelerates to a stop. Since the label may slip, it has a registration mark on it to ensure that each label is placed correctly. The registration mark is read by a sensor, and during the deceleration phase of the label, the drive wheel will be repositioned to correct any positional errors on the label strip.
1. Beverage industry. The application of the beverage industry requires high speed and accurate positioning, and often requires more than one bottle, and the label appearance and materials often change. The position control skills are very high when labeling.
2. Battery industry. In the battery manufacturing industry, the use of automatic labeling machines for shrink labeling is widely used . The labeling machine is required to operate at a high speed while ensuring that the label interface is flat, and that the function of preventing short circuit and providing label shrinkage at the same time is considered.
3. Food industry. The food manufacturing industry is highly competitive, and multi-layer labels provide more space for promotion and promotion for manufacturers, and also pose new challenges for the design of labeling machines.
4. Petrochemical industry. The petrochemical industry often needs to label products on large barrels, large bottles, etc., and the required speed and accuracy are relatively loose. However, due to the large size of the labels, the power requirements for the labeling machine are high, and the large-area labels are attached to the curved surface. Or, when labeling online water with uneven speed, keeping the label indicates that the flatness is also the focus of the designer.
5. Card making industry. In the card-making industry, the high-speed printing of passwords in the card-making process also requires password verification and coverage. However, the traditional silk screen or hot stamping method is often the bottleneck of production. At present, designers are boldly trying to replace silk screen printing with labeling to design a production line that integrates coding, inspection and labeling. It integrates more creativity, adds more production links and combined flexibility. Effectively meet the changing production needs of users.
6, the pharmaceutical industry. The pharmaceutical manufacturing industry is a large user of automatic labeling. The speed requirement is very high. The design of the labeling machine should take into account the integration of the labeling process before and after the labeling, and provide additional functions such as labeling front light inspection and automatic bottle holder after labeling. .
7. The medical industry. In the medical supplies manufacturing industry, the use of self-adhesive labels is becoming more and more widespread. In addition to being used as labels, labels also provide other functional uses. The design of labeling machines also varies according to the particularity of the labels.
8. Daily chemical industry. The application of the daily chemical industry requires that the shape of the container changes frequently and often changes with each passing day. The soft plastic container and the "no label visual sense" add difficulty to the labeling accuracy and bubble exclusion control.
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