In the assembly manufacturing industry, the manufacturing system which the operator of 1 human - several people assembles from the installation of the part, all process to processing and inspecting (1 person multi processes) takes charge. The line which is called the part and the cell which arranges the tool in Ulettertype and the like (the benchboard and the float) with you work.
As a big merit, job order of the operator in replacement and the cell of the part box just is changed, production item (the product variation and the like) by the fact that it can modify easily, are times when it is superior in correspondence to multi kind small-lot productions. In addition, also adjustment of production volume, is easy to correspond with the adjustment of number of people inside the cell and the increase and decrease of cell number.
If line production (lot production) with, productivity and quality of the process of somewhere on the line are low, the whole and it receives the bottleneck restriction, when productivity of other process becomes wasteful it is thought, but with cell production a certain cell stopping and/or producing the inferior goods, as for the other cell becoming independent, being to work as for wastefulness it is little. In addition, the person in charge being through, you take charge, of all works because (the circle to have), the problematical point and the improvement point are easy to be visible, improvement proposition large number can expect.
As a demerit of cell production, it meaning that 1 person takes charge of multi processes, until it becomes skillful, you can list the fact that among other things thing and the Labor effectiveness where time is required depend on the motivation of the worker individual. In addition demerit it cannot call, but long-range employment of the worker becomes prerequisite.
Cell production being something to which the Yamada day Noboru will personof the production consultant evolved"the improvement" "versatile manufacture" of the Toyota manufacturing system, being introduced into the SONY factory into 1992 in the start, reached the point where it is adopted with assembly production process of the electronics product. At the beginning, it was assumed that relatively it is faced to the small-sized product, but after that introduction advances even in field of machine tool and automobile etc., in apparel field also the easy order sewing factory of cell manufacturing system has appeared.
There probably is "diversification of consumer needs" and "overseas outflow of mass production base" etc. in the background which reaches the point where cell production is observed. After the nineties, in field of portable telephone and AV equipment and personal computer etc. it reached the point where model change is done frequently,the businessmodelof BTO / CTO etc. appeared, reached the point where the factory where it conforms to the consumer needs which are diversified is required. Former mass production to short term does not face tothe productionof the product which has the product life cycle which is converted aims toward "the lowering strategy of production unit cost" and the sufficient productivity improvement which attains victory in the foreign country and cost competition is required. The domestic manufacturing industry utilizing the merit that, it is close to the market, in order to construct the system which offers the product which is agreeable to market needs quickly, has tackled cell production then.
In the country especially CANON has adopted cell manufacturing system positively, it confronts the skill operator, the match such that the "my star designation system" is established is done. |
