Abstract
New weaving system is devised for the purpose of increasing production. This system in controlled by the logical method which the shuttle is picked just after touching the picking sticks and the starting orders for the driving devices of each port are signaled from the position of the shuttle in the shuttle box.
As the weaving production is determined by the numbers of pick per unit time, the production by using this system increases because the dead time with starting of each part and time lag with transfer of starting orders decrease greatly.
The starting orders for the driving devices of this system are given as output signals from the logic circuits, which are combined AND units with MEMORY units, for several inputs as main signals built by the shuttle.
Oil hydraulic cylinders or actuators which are operated by a power pump independently, are applied to the driving devices of each part of this system, and input signals detected by using some oil hydraulic switch valves.
Oil hydraulic relay valves are used as the logic units for AND and MEMORY circuits, and some two-way valves (directional control valves) are applied for the purpose of transfer of starting orders and operation for the driving devices, in combination with the switch valves and relay valves.
The above-mentioned full-hydraulic sequence control weaving system are tested under the oil pressure 50 kg/cm2, possibility of producting realization which is about 300 picks/min in case of the shuttle speed 9m/sec, is confirmed by many experiments.
