Technical status of the hottest domestic Slitter

2022-10-22
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With the continuous development of information technology, digital technology is playing an increasingly important role in different fields. The same is true in the packaging industry. After continuous progress, the technology of domestic film slitter has made significant breakthroughs in speed, width, control and comprehensive performance. Digitalization has also become an important direction for the development of domestic film slitter

before being used for packaging, many packaging materials often go through many processes such as slitting, printing (or coating), compounding, slitting, etc., but the cutting methods in each slitting process are different. The common cutting methods are:

(1) cutting edge, cutting off the process edge reserved in the previous process, which is mostly used for the processing of composite films and other materials

(2) cutting, cutting the wide coiled material into multiple coils of narrow size materials

(3) divide the large coil diameter material into several rolls of small coil diameter material, which is equivalent to rewinding, etc. These methods are sometimes mixed. No matter which process is adopted, the material after slitting 1. Unscrew the oil return valve material should meet the corresponding technical indicators: size requirements (refers to the width and length of the slitting material, etc.) and quality requirements (flatness of the coil, surface quality, etc.)

manufacturing and purchasing qualified slitting equipment should not only meet these technical indicators, but also consider the following two factors: operating efficiency, mainly including the working speed and stability of the equipment and the difficulty of machine operation; Economic performance refers to the scope of application of equipment to materials, the processing limit size, as well as the price and energy consumption of equipment

with the continuous development of packaging technology and the improvement of packaging grade, the performance requirements of packaged items on packaging materials are becoming increasingly prominent, and there are many materials with special properties, such as aluminum plating film with shading effect and high surface quality requirements, CPP film with large elongation, multi-material composite film with high barrier performance, etc. The continuous application of various new materials promotes the rapid development of the flexible packaging market. With the growth of market demand and the development of special application fields, the requirements for cutting packaging materials and cutting equipment are becoming higher and higher. On the other hand, with the gradual promotion of automatic packaging equipment in the packaging industry, such as food packaging, cigarette packaging, etc., these automatic packaging machines are very picky about the quality requirements of the materials after slitting, which brings a broad development space for the slitting machine to high-grade and high-precision control

in the past, the high-precision high-speed slitter used by domestic enterprises, which also regarded the automotive industry and its related electrical utilization as the two main pillars of their business growth in Asia and China, was mainly monopolized by a few foreign manufacturers. With regard to the development of domestic slitting machines, there is such an image metaphor in the industry: in the early stage, the structure of slitting machines was simple, the speed was about 100m/min, and the mechanical friction mode of winding tension was manual control, which was called machine by people; Later, after some transformation, the winding is controlled by means of clutch, and a single motor controls the traction and winding. The speed is less than 200m/min, which is called a simulator; Since then, the new full-automatic high-speed Slitter, using digital automatic control, has a speed of more than 300m/min, just like the digital machine 5 in the field of modern communication Fill in the experiment record form

with the improvement of the technical capacity of domestic enterprises, different manufacturers have launched digital controlled high-speed slitting machines. The following introduces the high-speed digital control slitting machines produced by several domestic manufacturers to get a glimpse of the latest progress of domestic slitting technology

new concept of intelligent slitting

Hangzhou Dahua Industrial Control Technology Co., Ltd. developed a product little prodigy II slitting machine tailored for mainstream users in the flexible packaging industry at the beginning of this year. The little prodigy II flexible packaging Slitter series has absorbed many advantages of Dahua Slitter in the past. It adopts the central winding mode and the latest digital control and drive technology, with a stable working speed of 300~400 meters/minute, a winding diameter of 800 mm, a winding diameter of 500 mm, and a minimum winding width of 30 mm. In addition, the film connecting table, waste edge treatment system and cutter conversion system specially designed for this machine have originality, and more options can meet the specific requirements of more customers

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