Siemens helps Chinese paper bag machine companies compete in the international market

Founded in 1997, Nanjing Zhuo Neng Machinery Equipment Co., Ltd. (Zhuo Neng) is an "expert" in the field of paper bag machines, and with the empowerment of technology with Siemens, this company has achieved a compound annual growth rate of more than 30% in sales in the past three years.

Siemens helps Chinese paper bag machine companies compete in the international market

　　Headquartered in the ancient capital of Jinling, Zhuo Neng is an innovative enterprise that started from the production of precision parts, and has been focusing on the research and development, production and sales of automatic paper bag machine series equipment since 2008, and was identified as "the best high-tech enterprise" in 2014.

China's paper bag machine career development is relatively late, in the early years by the technical level and environmental restrictions, the industry has many small and medium-sized enterprises, small planning, limited independent research and development capabilities, and insufficient product competitiveness. In 2008, after the first "plastic restriction order" was proposed, local governments have continuously increased plastic pollution management in the past ten years to curb "white pollution", and paper bag machine shopping malls have gradually parted from "small and scattered" and embarked on the road of "high-tech" industrial transformation and promotion. Zhuo Neng is a representative enterprise in this process.

On the road to development, Zhuo Neng also faced confusion: how to make digitalization land? And how do you stand out from the competition and go global? With a series of questions, Zhuo Neng found Siemens, and the two sides conducted full exchanges and discussions according to the transformation ideas and new product development, and finally officially joined hands with the "Zhulu" paper bag machine market in 2018.

In the view of Siemens and Zhuo Neng, there are two "key points" in the demand for completing the problem: first, the policy is good to attract more "players" to enter, the professional competition is becoming more and more intense, and product differentiation and high-end have become the key points of the disjointed price war; Second, the demand for paper bags from occupational terminals and consumer terminals is becoming more and more diversified and personalized. Paper bag machine needs to coordinate production power, stability, easy operation, low-carbon and environmental protection, flexible production, personalized customization...... The introduction of advanced digital and motion control technology into the production process is the key to satisfying the needs of shopping malls.

Developing a product that is difficult for malls to refuse doesn't happen overnight. Generally speaking, the selection and commissioning of the paper bag machine will be a high investment, long return cycle of the operation, the demand drawing, the establishment of physical equipment, repeated trial and error, gradual iteration, which not only becomes the bottleneck that limits product innovation, but also forms a lot of time and waste of resources. The application of Siemens' Mechatronics Conceptual Planning Solution Plan (NX MCD) solves this challenge.

With the help of NX MCD's digital planning, validation and virtual commissioning solutions, we were able to build a digital twin in the virtual world that is indistinguishable from the production of a paper bag machine in the real world, and optimize the mechanical structure on this basis. Taking the installed power of the equipment as an example, the engineer can import the motor torque, load curve and other data into the software system, so that the motor can run according to the set parameters, and then efficiently complete the motor configuration. In addition, the one-click debugging function of NX MCD also makes equipment debugging more professional and faster, effectively avoiding mechanical planning errors while reducing the cost of trial and error, and improving the planning quality and power.

The application of digital technology has greatly improved the development power of Zhuo Neng's prototype, and the prototype debugging work, which took several months, can now be completed in only about a week. The newly developed paper bag machine also coordinates the functional embodiment and green and low-carbon to a large extent. The NX MCD optimization plan assisted Zhuo Neng to complete the precise selection of the motor, and the power of the new motor was reduced by 37.7% compared with the previous one, which not only saved the procurement cost of servo motors and drives, but also reduced the energy consumption of the motor itself, and also helped to increase the stable production speed of the equipment by 20%.

If NX MCD is on the road to the goal, then the combination of Siemens' SIMATIC S7-1500T-CPU high-end automation system and SINAMICS S210 high-performance servo system makes it possible to go from 1 to 100. The solution plan can accurately complete the electronic axis synchronization, electronic cam, rotary cutting, color mark tracking and other functions of the paper bag machine, and generate a reusable standardized central process package. On this basis, the paper bag machine developed on this basis can not only complete the "basic operation" efficiently, safely and stably in the production process, but also serve as the end user's demand for flexible production and personalized customization. It is worth mentioning that the unique common DC bus scheme of SINAMICS S210 can rationally use and recover the renewable energy generated by the system during braking, and then effectively reduce the power consumption of the whole machine and complete the low-carbon operation.

So far, Zhuo Neng has cooperated with Siemens to develop a variety of different types of round rope automatic paper bag machine, round flat rope automatic paper bag machine and flat rope internal and external folding automatic paper bag machine. These new products have received bulk orders and have become the word-of-mouth products of Zhuo Neng in the world shopping mall. At present, about 60% of Zhuo Neng's orders come from overseas, and the products are exported to Southeast Asia, Europe, North America, South America and other shopping malls, which is regarded as an important force in the field of paper bag machine "China's refinement".

Siemens helps Chinese paper bag machine companies compete in the international market

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