Hydraulic interlock devices should prevent the mold from closing when the door is open. These devices often consist of a hydraulic switch and an actuating arm.
(Terry L. Richardson,Erik Lokensgard, Industrial plastics: theory and applications, p.158)
geneva mechanizm:
Geneve mechanizm transmitting the rotation of driven link through a gear transmission having a 1:2 ratio would drive an eight position indexing table.to get around the rigid dependence of geneva mechanism on the t2\t1 ratio, cam mechanism of the sort can be used.
( B. Z. Sandler,robotics:designing the mechanisms for automated mahinery,p.217)
incoming material control:
the quality of incoming materials is tested by any one of the following methods:
acceptance sampling for attributes
acceptance sampling for variables
acceptance sampling is a technique for controlling quality of raw materials or finished goods.based on produser's risk, consumer risk acceptable level and lot tolerance percent defectivei one can design a suitable plan for attribute sampling.based on producers risk and consumers risk, acceptance sampling plan for variables can be designed.
( R. Panneerselvam,production and operations management, p229-230)
avarage tardiness:
as the avarage tardiness of parts is estimated based on the total number of parts produced
in the production period,it does not give the exact feel of the tardiness of parts in system.
(N.P.Sukesh Bhanu Sankar,N. Ramesh Babu and O.V. KKrishnaiah Chetty,Handling system constraints,p355)
you were late for 5th week !!!
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