PURPOSE: To obtain a diaphragm pump that is capable of supplying paint solution stably, in accurate proportion and continuously by operating simultaneously in the same direction each pump body having its pump connected to a pump shaft of plural number of diaphragm pump.
CONSTITUTION: As a switchover valve V is operated, pilot air flows into an operating chamber 9 through an operating bore 15a, pushes a diaphragm 11 forward and moves a pump shaft 12 towards a case body 5a. At this time, air in the operating chamber 9 provided in a case body 5b is exhausted to the outside from the operating bore 15b through the switchover valve V. If the switchover valve V is operated in the opposite direction, the pump shaft moves towards the case body 5b following the similar operation described above. If the paint solution is supplied to a perforated hole 42 at this time, the solution can be introduced to a mixing receptacle from a perforated hole 41 by a check valve body 13A, a pump chamber 10 and a check valve body 13B. Hence, plural number kind of paint solution can be stirred up and mixed stably and continuously in accurate proportion by connecting the pump shaft 12 of plural number of pump body to each other by a connecting means 17 and operating them simultaneously in the same direction.
FUCHITA WAKICHI
SAKAMOTO HIROSHI
| JPS52705B2 | 1977-01-10 | |||
| JPS582387B2 | 1983-01-17 |
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