i. project background
the company is approved by the state council, approved by the state-owned assets supervision and administration commission of the state council, and the a h-share listed companies merged by the two companies in accordance with the principle of reciprocity. approved by the china securities regulatory commission, on june 8, 2015, the company was successfully listed on the shanghai stock exchange and the hong kong stock exchange. there are 46 wholly-owned and controlled subsidiaries with more than 170,000 employees. headquartered in beijing.
the company is a world-leading, full-range, top-notch rail transportation equipment supplier. main business: r&d, design, manufacture, repair, sales, leasing and technical services of railway rolling stock, emus, urban rail transit vehicles, construction machinery, various electromechanical equipment, electronic equipment and parts, electronic appliances and environmental protection equipment products. information consultation; industrial investment and management; asset management; import and export business.
the company adheres to independent innovation, open innovation and collaborative innovation, continuously improves the technology innovation system, continuously enhances its technological innovation capability, and builds the world's leading rail transit equipment product technology platform and manufacturing base to high-speed emus, high-powered locomotives, and railway wagons. the series of products represented by urban rail vehicles have reached the world advanced level and can adapt to various complex geographical environments to meet diversified market demands. the high-speed emu series products manufactured by crrc have become an important business card for china to show its development achievements to the world. the products have been exported to nearly 100 countries and regions in six continents, and gradually shift from product export to technology export, capital export and global operation.
facing the future, the company will focus on integrating the world and surpassing expectations, and firmly grasp the strategic opportunities such as the “belt and road” and the development of the global rail transit equipment industry, and vigorously implement the internationalization, diversification and synergy development strategy, and comprehensively promote with the globalization strategy of "transformation and upgrading, multinational operation" as the main feature, we strive to be the innovation leader of "made in china 2025" and "internet ", and strive to build the company into a rail transit equipment, with transnational operations and global leadership. high-end equipment system solution provider.
2. customer needs
what problems did the customer encounter:
1. the material carrying method is varied; the tooling return line is too long and the flexibility is poor; the production line is more traditional; the space utilization rate is not high;
2. the flow of people, logistics, and detours lead to a large number of incidental operations without added value. the 5s on-site is poor, and there are too many wip products on site;
3. information transmission depends on information, information records are written, and information is lagging;
4. the material distribution method is a typical one-time large-volume delivery method. once an abnormality occurs in a material, it will cause batch errors.
5. there are a large number of incidental work with no added value during the operation.
lean production line analysis:
1. designing the layout and quantity of lean production lines according to tt;
2. the line body meets the requirements of flexibility and expandability, and can be continuously upgraded to meet the production needs of different products and different processes;
3. the lean production line equipment is modularized, and the lean production line can be assembled freely to improve the efficiency and longevity of the equipment;
4. according to pqpq (order quantity, process path), classify the line body.
lean production line benefits:
the production balance rate has been greatly improved;
the space utilization rate of the site is saved and the floor space is reduced;
optimize the 5s site for easy management and the overall look of the company;
the first mention is flexible, can be quickly switched, and quickly respond to the market;
reduce personnel and achieve provincialization.
3. project improvement
before improvement
improved
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