The meaning of 5S
5S refers to sorting (SEIRI), correcting (SEITON), cleaning (SEISO), cleaning (SEIKETSU) and literacy (SHITSUKE). Because the romanization of Japanese begins with "S", it is abbreviated as 5S.
Evolution of 5S
5S originated in Japan and refers to the effective management of production factors such as personnel, machines, materials and methods at the production site. This is a unique management method of Japanese enterprises. 1955, the slogan of Japanese 5S is "Safety begins with sorting and ends with sorting". At that time, only the first two s were implemented, and its purpose was only to ensure the workspace and safety. Later, due to the need of production and quality control, 3S, namely cleaning, cleaning and cultivation, was gradually put forward, which further expanded the application space and scope. By 1986, the works of 5S in Japan were gradually published, which had an impact on the whole field management mode and set off a 5S craze.
Development of 5S
Japanese enterprises regard 5S movement as the basis of management and implement various quality management methods. After World War II, the quality of products improved rapidly, and the status of an economic power was established. Under the advocacy of Toyota, 5S has played a great role in shaping corporate image, reducing costs, delivering on time, ensuring safe production, highly standardizing, creating a relaxed workplace and improving the site, and has gradually been recognized by management circles in various countries. With the development of world economy, 5S has become a new trend of factory management.
Application of 5S
5S is applied to manufacturing and service industries, which can improve the environmental quality on site and the thinking mode of employees, and enable enterprises to move towards total quality management effectively. It is mainly aimed at the manufacturing industry to carry out corresponding activities on production factors such as materials, equipment and personnel at the production site. 5S has played a great role in shaping corporate image, reducing costs, delivering goods on time, ensuring safe production, highly standardizing, creating a relaxed workplace and improving on site. It is the success of rapidly improving the quality of Japanese products and marketing them all over the world.
Extension of 5S
According to the needs of further development of enterprises, some enterprises have increased safety on the basis of 5S, forming "6S"; Savings enterprises increase their savings again, forming "7s"; Other enterprises joined habituation (しゅぅかんか, Latin for Shiukanka), service and persistence (しつこく, Latin for shitukoku), and formed. Some enterprises even carry out "12S", but all the changes are due to "5S". For example, in sorting, it is required to eliminate useless things or articles, which can involve saving and safety in a certain sense. Specifically, such as useless garbage lying in a safe passage, this is the content that safety should pay attention to.
Definition and purpose of 5S
1S-sorting (Seiri)
Definition of classification: distinguish between wanted and unwanted items, and only keep necessary items on site. The purpose of finishing: ① improve and increase the working area; (2) There is no sundries on the site, the streets are unobstructed, and the work efficiency is improved; (3) reduce collision opportunities, ensure safety and improve quality; (4) Put an end to management mistakes such as mixed loading and mixed loading; ⑤ It is beneficial to reduce inventory and save money; ⑥ Change working style and improve working mood. The significance of classification: separate the people, things and things that need to be separated from those that don't, and then deal with the people, things and things that don't need, classify all kinds of articles that are actually placed and stagnant in the production site, and distinguish between those that are needed and those that are not needed; Secondly, we must resolutely clean up unnecessary items on the site, such as used materials, redundant semi-finished products, chips, leftovers, garbage, waste products, redundant tools, scrapped equipment, workers' personal daily necessities, etc. The focus of this work is to resolutely clean up unnecessary things at the scene. The front and rear of each station or equipment in the workshop, the left and right of the passage, the up and down of the workshop, the inside and outside of the toolbox and the dead corner of the workshop should be thoroughly searched and cleaned to make the best use of everything.
2S- Seton
Definition of rectification: Necessities shall be located according to regulations, placed in an orderly manner and clearly marked. Purpose of rectification: Do not waste time looking for goods, improve work efficiency and product quality, and ensure production safety. The significance of rectification: quantify and locate the people, things and things needed. After the completion of the previous step, scientifically and reasonably arrange and place the items that need to be left at the production site, obtain the required items as quickly as possible, and complete the operation under the most effective rules and regulations and the simplest process. Key points of rectification: ① Goods should be placed in a fixed place and area, so as to facilitate searching and prevent errors caused by mixing; (2) Articles should be placed in a scientific and reasonable place. For example, according to the frequency of use of items, things that are often used should be placed nearby (such as the work area), and things that are occasionally used or not commonly used should be placed far away (such as concentrated in a certain place in the workshop); (3) Visualize the placement of articles, so that the quantitatively loaded articles can be seen and counted, and the areas where different articles are placed are distinguished by different colors and marks.
3s- cleaning (Seiso)
Definition of cleaning: cleaning the dirt in the site and cleaning the material garbage in the operation area. The purpose of cleaning is to remove "dirt" and keep the site clean and bright. The significance of cleaning: removing the dirt in the workplace and making the abnormal source easy to be found is the first step to implement independent maintenance, mainly to improve the productivity of equipment. Cleaning points: ① Clean your own articles, such as equipment and tools, without relying on others and adding special cleaning agents; (2) Equipment cleaning, focusing on equipment maintenance. Cleaning equipment should be combined with point inspection of equipment, that is, point inspection and repair; Cleaning equipment should be lubricated at the same time, and cleaning is also maintenance; ③ Cleaning is also for improvement. When cleaning the ground, flying debris and oil-water leakage are found. Find out the reasons and take measures to improve them.
4 s-Seiketsu
Definition of cleanliness: systematize and standardize the practice of sorting, rectifying and cleaning, and maintain its achievements. The purpose of cleaning: seriously maintain and adhere to the effect of sorting, rectifying and cleaning, so as to keep it in the best condition. The significance of cleaning: eliminate the root causes of safety accidents through sorting, rectification, and persistence and deepening of cleaning activities. Create a good working environment and let employees work happily. The key points of cleaning: ① The workshop environment should not only be clean and tidy, but also be clean and hygienic to ensure the health of workers and improve their labor enthusiasm; (2) Not only the goods should be clean, but also the workers themselves should be clean, such as clean work clothes, neat instruments, timely haircut, shaving, manicure and bathing. ; ③ Workers should not only be physically clean, but also mentally "clean", be polite and respect others; (4) Protect the environment from pollution, further eliminate turbid air, dust, noise and pollution sources, and eliminate occupational diseases.
5s- literacy (Shitsuke)
Definition of literacy: everyone follows the rules and regulations and develops good habits. The purpose of literacy is to improve "people's quality" and cultivate people who are serious about any work. Significance of literacy: It is the core of "5S" activities to improve the self-cultivation of personnel and form the habit and style of strictly observing rules and regulations.