Multi Color Fabric Weaving High Speed Air Jet Loom

Air jet loom manufacturer, intelligent air-jet loom, energy-saving air-jet loom

[Brief Introduction]

weft insertion of jet loom is mainly completed by the pressure medium ejected from the main nozzle and several auxiliary nozzles. The solenoid valve controls the on and off of the pressure medium source on the main and auxiliary nozzles to ensure the smooth weft insertion of the jet loom.

The existing weft insertion mechanism of jet looms usually uses one solenoid valve to control multiple auxiliary nozzles. The working principle of the solenoid valve is to control the opening of the valve core by the coil.

The electromagnetic force generated by the electrified coil is used to push the valve core to move away from the valve port. The solenoid valve is in the open state.

When the coil is powered off, the spool is reset and compressed by the spring elasticity, The solenoid valve is closed. When the solenoid valve is opened, it needs to overcome the spring force by the electromagnetic force to push the valve core to move, so the spring force is generally not too large, then the valve core moves slowly when the solenoid valve is closed, resulting in the waste of pressure medium.

However, the energy consumption of jet loom pressure medium preparation is relatively large, so the waste of pressure medium also causes large energy consumption.
 

[purpose]

the purpose of the utility model is to overcome the defects of slow closing of the electromagnetic valve of the existing weft insertion mechanism of the jet loom, resulting in waste of pressure medium and large energy consumption, and to provide a weft insertion mechanism of the jet loom which can reduce energy consumption.

[scheme]

for this purpose, the utility model adopts the following technical scheme: the weft insertion mechanism of the jet loom comprises a main nozzle and a plurality of auxiliary nozzles, both of which are connected with the pipeline conveying pressure medium, and the on-off of the pressure medium is controlled by the solenoid valve arranged on the pipeline, and one electromagnetic valve correspondingly controls * one auxiliary nozzle, The solenoid valve includes a valve seat, a sleeve, a coil assembly and a moving iron core with a valve core at the front end.

The valve seat is provided with a valve cavity and two medium through holes connected with the valve cavity.

The connection between one medium through-hole and the valve cavity is a valve port. Only one end of the sleeve is closed, the sleeve is fixedly connected to the valve seat, and the open end of the sleeve is connected with the valve cavity of the valve seat, The moving iron core can be movably accommodated in the inner cavity of the sleeve, and the valve core at the front end of the moving iron flower corresponds with the valve port to close or open the valve port.

The coil assembly comprises an open coil and a reset coil which are wound outside the sleeve. The open coil and the reset coil are independent and opposite to each other, and the open coil controls the opening of the solenoid valve core, The reset coil controls the closing of solenoid valve spool, and the opening coil and reset coil are controlled by the electronic control system to be electrified alternately.
 

[004] as a supplement and improvement of the above technical scheme, the utility model also includes the following technical features.
 

[005] the bottom of the inner cavity of the sleeve is provided with a spring holding cavity, and the content of the spring containing cavity is provided with a reset spring. One end of the reset spring is against the inner cavity wall of the spring containing cavity, and the other end is against the bottom of the moving iron core. The reset spring and the reset coil together control the closing of the solenoid valve core and accelerate the closing speed of the solenoid valve