Eject nozzle and eject system

Abstract

The present invention provides a spray nozzle and a spray system using the spray nozzle capable of stabilizing process and product quality as well as preventing control delay and liquid dripping. A first piston part and a second piston part are formed on the piston arranged on the axial line of the body in a fore-and-after movable fashion, and a fluid channel ia formed on the axial line. The front side of the plunger compartment is connected with a mixing air channel, and the rear side of the plunger compartment is connected with a control air channel. When the control air channel is suppliedwith compressed air and the piston is forced to advance by the action of the solenoid operated directional valve, the O-shape sealing ring of the first piston part contacts against the inner surface of the plunger compartment to close the air supplying channel, simultaneously the alley part contacts against the O-shape sealing ring to close the fluid supplying channel. On the other hand, when thesolenoid operated directional valve acts to the opposite side, the piston is forced to retract by compressed air from the mixing air channel, and the fluid supplying channel and the air supplying channel are opened, so as to allow a liquid and a gas to mix with each other and execute spray from the spray nozzle.

Description

technical field [0001] The present invention relates to a spray nozzle for mixing and spraying fluid and gas, and a spray system using the spray nozzle. For example, spraying mold release agent or cooling water during die casting. Background technique [0002] For example, in the die casting process, in order to release the product from the mold and cool the mold, a spray system that sprays a release agent or cooling water is used. For example, in image 3 In the shown injection system 40, an injection unit 42 is provided at the front end of the manipulator 41 as a mobile control device. On the one hand, a plurality of injection nozzles 43, 43... are arranged side by side on the injection unit 42. Unit 42 is connected with: control panel 44, which has known fluid and gas supply devices made of well-known tanks or pumps, compressors, electromagnetic reversing valves, etc.; The control panel 44 is centrally controlled. [0003] On the other hand, for example, as shown in Pa...

AI Technical Summary

Problems solved by technology

[0005] In the above injection system, since the distance (piping) between the electromagnetic selector valve that controls the air supply and the ejection position of the nozzle is long, the injection control lag occurs, and time is lost in the entire manufacturing cycle. , After spraying, droplets may fall from the tip of the nozzle, causing unnecessary liquid to adhere to the mold, etc., resulting in a decrease in quality

[0006] In addition, since the supply passage for supplying fluid and air to the main body is connected to the main body in a direction perpendicular to the main body, each nozzle is enlarged, resulting in an increase in size and complexity of the ejection unit.

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