| 摘要 |
PROBLEM TO BE SOLVED: To remove foulings by fully cleaning an end face of a piston rod and inside a blending chamber of a liquid blending equipment so as to allow steadily discharging a liquid material such as a mixed reaction curing component into the blending chamber to use a resultant mixture for coating, spraying or filling. SOLUTION: The liquid blending equipment can switch a circulating state and a discharging state by the sliding operation of a piston rod 2 having channels 5a and 5b on its side wall and fitted into a cylinder pit 1. In the circulating state, inlets 3a and 4a and outlets 3b and 4b, respectively for a base resin and a curing agent, opened to the cylinder pit 1 are communicated. In the discharging state, the blending chamber 6, to which the inlets 3a and 4a of the cylinder pit 1 are exclusively engaged in, is exposed and the base resin and the curing agent are discharged. To introduce a cleaning liquid and clean the blending chamber 6, a through bore 8 is arranged to the piston rod 2 and a valve rod 9 is movably inserted into the through bore 8 whereby forming a passage for the cleaning liquid between the valve rod 9 and the interior surface of the through bore 8 and making an opening 11 at the tip of the piston rod openable and closable by the valve rod 9. COPYRIGHT: (C)2003,JPO |
