LOAD MEASUREMENT METHOD AND RECOVERY METHOD

摘要

Before using load cell 240 to measure a load (nozzle load) arising during relative movement between a suction tube and a pipe of suction nozzle 62, the suction nozzle and metal contact tool 242 are moved towards each other by a set load with the metal contact tool contacting the tip section of the suction tube. When the suction tube and the pipe has moved relatively by set amount due to the suction nozzle and metal contact tool being moved towards each other, the nozzle load of the suction nozzle is measured using the load cell. Thus, it is possible to perform measurement of nozzle load only for a suction nozzle for which relative movement of the suction tube and the pipe has been confirmed, thereby allowing nozzle load to be measured appropriately without damaging the load sensor. Also, nozzles for which there is virtually no relative movement between the pipe and the suction tube may be fixed by relative movement becoming possible due to the burden of the load.