Technical guide for circular die cutting machines
There are three key points that must be grasped when choosing a qualified circular press. Firstly, it is the main configuration of the equipment, secondly, the raw materials and processing accuracy used in manufacturing the equipment, and thirdly, the professional services provided by the system. Among them, the configuration of the equipment will determine its advancement, practicality, and reliability in the production process.
The circular die-cutting machine consists of three main parts: the die-cutting section, the paper feeding section, and the electrical control section. The current use of the die-cutting department is soft cutting, which means that a layer of high-strength polyurethane adhesive sleeve is placed on the roller. During the rotation of the die-cutting machine, the soft roller moves back and forth 40 millimeters to prevent the die-cutting blade from repeatedly cutting the same position, causing local damage to the rubber sleeve. There are mainly two types of structures for this lateral movement device in China. Another type is a mechanical structure, which is commonly used. It is mainly controlled by the speed ratio difference between the upper and lower rollers, and the movement of the soft roller is controlled by the cam, with a speed ratio control function. Therefore, the movement speed of the soft roller is determined based on the speed of equipment operation.
The circular die cutting machine must be equipped with an automatic speed difference compensation device. There are currently three ways for this device in China, one is the speed difference equalizer, which is expensive. One method is to use a clutch for surface speed compensation, which is more economical and practical. Another way is to replace the gears. Every time the soft sleeve is repaired, the gears are replaced, which is very troublesome and the compensation is not accurate.
The main configurations for the die-cutting section are these four points,
1. Automatic repair mechanism for soft rollers,
2. Automatic speed difference compensation device,
3. Imported soft cutting rubber sleeve,
4. Soft roll lateral movement device.