Air knife width variable device with excellent operating efficiency

Abstract

The present invention is based on a variable width device of an air knife composed of a driving component (100) and a blocking component (200), wherein the driving component (100) is arranged on both sides of the gas knife (10); the blocking component (200) is due to the The operation of the driving part (100) adjusts the blocking range of the injection hole (11) while moving inward or outward along the length direction of the air knife, and provides the variable width device of the air knife with excellent operating efficiency as follows: The blocking member (200) is to fix one end of the front end (210) on the outside of the air knife when observing the air knife in a planar state, and move outside or inside along the length direction inside the spray hole, thereby adjusting the spray hole. The range is blocked, and the rear end portion (220) circulates in the other end of the front end portion 210 toward the outside of the air knife to be connected with the driving component (100).

Description

technical field [0001] The present invention relates to a variable width device of an air knife, and more specifically relates to a variable width device of an air knife with excellent operating efficiency that flexibly moves a blocking member to the air knife while minimizing high-pressure gas and collision resistance The inner and outer sides can greatly improve the injection efficiency of high-pressure gas. Background technique [0002] In general, the variable width device of the air knife utilizes various shapes of blocking members for adjusting the injection range of the high-pressure gas injected by the air knife. [0003] However, in the case of the antenna-shaped blocking member in the prior art, a step difference occurs at a portion where a plurality of circular tubes contact each other, not only vibration occurs at the same time as the high-pressure gas collides, but also the diameters of the multiple circular tubes are different from each other, so There is a se...

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Problems solved by technology

[0003] However, in the case of the antenna-shaped blocking member in the prior art, a step difference occurs at a portion where a plurality of circular tubes contact each other, not only vibration occurs at the same time as the high-pressure gas collides, but also the diameters of the multiple circular tubes are different from each other, so There is a serious problem of not being able to completely block the high-pressure gas

[0004] In addition, in the case of the blocking member having a plate shape in the prior art, high-pressure gas does not pass naturally but collides with the surface to generate resistance and eddy current at the same time, so there is a problem that serious vibration and noise are generated

[0005] At the same time, in the recent use of a circular cross-section and elastic blocking member, but this moves inward or outward during the injection of high-pressure gas, because the resistance that occurs simultaneously with the collision with high-pressure gas limits the flexible movement, there is a possibility that it cannot The problem of accurately adjusting the injection range of high-pressure gas

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