Blowing device

Abstract

The invention discloses a blowing device which is composed of a hollow L-shaped housing and three vertically arranged L-shaped partition plates which are distributed in parallel in a spaced manner inthe housing. The three L-shaped partition plates divide the L-shaped housing into three air inlet channels. The L-shaped housing comprises a long housing and a short housing vertical to each other. Each L-shaped partition plate comprises a long plate and a short plate vertical to each other. A plurality of transverse blowing blades which are arranged in parallel in a spaced manner are arranged onthe lower part of the long housing, blowing channels are formed between adjacent blowing blades, the bottom surface of the long housing of the L-shaped housing is opened, and the front end of the short housing is opened, and other surfaces of the L-shaped housing are closed; a turn is formed between the long housing and the short housing, the turn comprises an inner turn and an outer turn, arc-shaped transition is formed between the long plate and the short plate, and the three vertically arranged short plates in parallel are parallel; and the separation distance proportion between the adjacent short edges from the inner turn to the direction, far away from the inner turn is 3: 2: 1. By changing the opening size of the air supply outlet, the air quantities of the blowing channels of the blowing device are equal.

Description

technical field [0001] The invention relates to the technical field of flat plate processing, in particular to an air supply device. Background technique [0002] At present, the oven baking of the color coating production line adopts the hot air circulation method to dry the board paint in the oven. During the drying process, the temperature, wind speed, and air volume of the hot air in the oven are extremely strict. It will affect the color, reflectivity, and uniformity of color of the baked color-coated board, which in turn will affect the use effect of the product. [0003] Since the position of the air inlet of the preset air knife is limited to the on-site environment, generally it can only be set on the side of the oven, but after the hot air is blown out through the air knife, the inertia of the blowing will cause the paint on the board surface to be locally heated or the board surface to be heated unevenly in the transverse direction. The time to make the board rea...

AI Technical Summary

Problems solved by technology

[0002] At present, the oven baking of the color coating production line adopts the hot air circulation method to dry the board paint in the oven. During the drying process, the temperature, wind speed, and air volume of the hot air in the oven are extremely strict. It will affect the color, reflectivity, and uniformity of color of the baked color-coated board, which will affect the use effect of the product

[0003] Because the position of the air inlet of the preset air knife is limited to the site environment, generally it can only be set on the side of the oven, but after the hot air is blown out through the air knife, the inertia of the blowing will cause the paint on the board surface to be locally heated or the board surface to be heated unevenly in the transverse direction. Make the plate reach the appropriate baking temperature and the time is different, which will affect the coating effect of the plate

Furthermore, the prior art cannot control the horizontal air output of the air knife to be the same

Images