Control method of gas-liquid knife and gas-liquid knife

Abstract

The invention discloses a gas-liquid knife and a control method of the gas-liquid knife, belonging to the field of mechanical equipment. The air-liquid knife includes: a cavity and a cutter head, and the cutter head is arranged on the cavity; the cutter head is provided with an injection port, and the injection port communicates with the inside of the cavity; the cutter head includes a first knife lip and a second knife lip; the cavity It is composed of the first wall plate and the second wall plate that are slidably connected. When the first wall plate slides relative to the second wall plate, it drives the first knife lip to move relative to the second knife lip, and changes the minimum distance between the first inner wall and the second inner wall. distance. In the present invention, the injection ports are formed by the inner walls of the two knife lips, and the two knife lips can be moved relatively to change the minimum distance between the inner walls of the two knife lips, which solves the problem of adjusting the injection by pasting gaskets in the related art. When adjusting the width of the nozzle, there will be a problem of large error in the width of the nozzle due to the error in the thickness of the gasket and the tightness of the lamination, which achieves the effect that the adjustment error of the width of the nozzle is low.

Description

technical field [0001] The invention relates to the field of mechanical equipment, in particular to a gas-liquid knife and a control method of the gas-liquid knife. Background technique [0002] Air-liquid knives can be divided into air knives and liquid knives according to the different ejected fluids, wherein air knives are usually used to intercept liquid by air flow, and liquid knives are usually used to pre-wet products by ejecting liquid. [0003] There is a gas-liquid knife in the related art, such as figure 1 As shown, the gas-liquid knife includes a cavity 01, and two knife lips 02 and 03 extend from the cavity 01. The two knife lips are both sheet-shaped and parallel to each other, and the gap between the two knife lips x communicates with the inner space of the cavity, and the end of the gap away from the cavity is the injection port k. The cavity 11 is provided with an inlet 04. After entering the cavity 01 through the inlet 04, high-speed gas or liquid will be...

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problem in the prior art that when the width of the injection port is adjusted by attaching the gasket, the error in the width of the injection port will be relatively large due to the error in the thickness of the gasket and the tightness of the application, the embodiment of the present invention provides A gas-liquid knife and a method of using the gas-liquid knife

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