Chaku-Chaku
Chaku-Chaku (Japanese for loading, loading ) is a Japanese term for work systems in which people bring workpieces to a device in a predetermined order, equip it and, after the largely automated process, transport it to the next machine and this with the Equip previously processed workpiece (see object principle ). The distances between the machines are therefore typically kept to a minimum and U-shaped or Ω-shaped work systems are created in which the worker can operate each of the stations ( multi-station work ). In most cases, a small buffer stock can be kept at the stations in which a machined workpiece can wait for a short time.
The aim of such a system is to make the system performance more flexible, since this can be increased with increasing staff almost so that the productivity of the people remains the same. At the same time, doing without complicated conveyor technology leads to an improvement in process reliability through the use of flexible staff .
Chaku-Chaku represents a very technical version of the one-piece flow and is often additionally secured with poka-yoke measures to increase process reliability.
criticism
The introduction of Chaku-Chaku does not require trained specialists, as the processing in the machine is largely automated. Through this deskilling , unskilled workers can be used and skilled workers can be cut. This can result in increased pressure on employees and an increasing risk to their health. The monotony of work also increases the risk of accidents.
Optimizations
One possible ingredient related to Chaku-Chaku is Hanedashi . This means the automatic ejection of a finished part and forms the basis for the implementation of the Chaku-Chaku principle. The machine then adjusts itself so that it can be loaded again by a person. The saving is the buffer, which further reduces handling, which at the same time reduces the time required and increases process reliability (less handling). Since the system can be loaded more quickly, this also results in a higher machine capacity. A well-known everyday example of a Hanedashi are coffee capsule and pad machines. Turntables with multiple fixtures, where an empty station is waiting to be picked up, have the same effect . This configuration also avoids having to work in the area of the machine tool.
Individual evidence
- ↑ a b Thomas Spengler, Thomas Volling and Stefan Rehkopf (2005) On the use of Chaku-Chaku systems in the assembly of consumer-oriented products - a case study in framework order production ; in Hans-Otto Günther, Dirk C. Mattfeld, Leena Suhl; Supply chain management and logistics ; Springer Verlag; ISBN 978-3-7908-1576-4 ; Page 249–275.
- ↑ a b c d e f g Jürgen Schenk (2012) The work organization model Chaku-Chaku ; on the IG Metall website; accessed on May 27, 2014.
- ^ Daniel Eberhard (2013) Production organization based on the Chaku-Chaku principle ; Bachelor + Master Publishing; Hamburg; ISBN 978-3-95549-322-6 .
- ↑ a b http://www.isixsigma.com/dictionary/hanedashi/
- ↑ http://www.lean-production.org/jidoka-hanedashi/hanedashi-lean-tutorial/