A spray gun that effectively reduces the gasification of spray powder during the spray process

Abstract

The invention discloses a plastic spraying gun capable of effectively reducing gasification of plastic spraying powder in the plastic spraying process. The plastic spraying gun comprises a plastic spraying gun body, a powder bottle, a mixing assisting device and a flame stabilizer. The plastic spraying gun body comprises a gun barrel and a gun handle, and the gun barrel is provided with a flammable gas guiding and conveying channel, a powder and gas mixing cavity, a communication channel, an exhaust channel and multiple oxygen introduction channels. The mixing assisting device comprises multiple flow guide plates and a plastic spraying powder guiding and conveying pipe, the flow guide plates are obliquely installed in the powder and gas mixing cavity and sequentially arranged along the flammable gas guiding and conveying channel and close to the communication channel, the inclination directions of any two adjacent flow guide plates are opposite, and any two adjacent flow guide plates are connected with the inner walls of the two opposite sides of the powder and gas mixing cavity; the flame stabilizer comprises a flame stabilizing frame and an ignition device, the flame stabilizing frame is detachably installed on the gun barrel and located on the exhaust channel, and the ignition device is installed on the flame stabilizing frame. The plastic spraying gun is convenient to use, plastic powder uniformity and liquefaction are benefited.

Description

technical field [0001] The invention relates to the field of plastic spraying, in particular to a plastic spray gun that can effectively reduce the gasification of plastic spray powder during the plastic spray process. Background technique [0002] There are many types of plastic spraying guns, and they are widely used. At present, flame spraying guns are mainly equipped with flame nozzles and plastic powder nozzles on the gun body. The flame nozzles will emit flames, so the flame nozzles have a higher temperature. The plastic powder produced is liquefied under the action of high temperature. In order to ensure that all the plastic powder can be liquefied, there needs to be sufficient temperature at the flame nozzle. However, due to the inconsistent distance between the powder and the flame nozzle, the powder near the flame nozzle is easy to gasify. . Contents of the invention [0003] Based on the technical problems existing in the background technology, the present inve...

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Problems solved by technology

[0002] There are many types of plastic spraying guns, and they are widely used. At present, flame spraying guns are mainly equipped with flame nozzles and plastic powder nozzles on the gun body. The flame nozzles will emit flames, so the flame nozzles have a higher temperature. The plastic powder produced is liquefied under the action of high temperature. In order to ensure that all the plastic powder can be liquefied, there must be sufficient temperature at the flame nozzle. However, due to the inconsistent distance between the powder and the flame nozzle, the powder near the flame nozzle is easy to gasify.

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