Atomizing bell head and electrostatic rotary bell atomizer

Abstract

The invention discloses an atomizing bell head and an electrostatic rotary bell atomizer, and belongs to the field of painting. The atomizing bell head comprises a bell body and a distribution disc, the distribution disc is arranged in the bell body, moreover, a liquid filling cavity is formed between the lower surface of the distribution disc and the inner wall of the bell body, the bottom of thebell body is provided with a first liquid passage communicating with the liquid filling cavity, the center of the distribution disc is provided with a second liquid passage communicating with the liquid filling cavity, a gap is formed between the distribution disc and the inner wall of the bell body, so that when the bell body rotates and a liquid enters the liquid filling cavity, a part of the liquid rises to the bell edge of the bell body through the gap, the other part of the liquid flows through the upper surface of the distribution disc through the second liquid passage and then rises tothe bell edge of the bell body, the bell edge of the bell body is provided with fine teeth, the fine teeth are used for cutting the liquid, the curve forming the inner wall of the bell body through rotation is an inverse triangular cosine function curve y=arccox, wherein the y is the height of the bell body, and the x is the width of the bell body. According to the atomizing bell head and the electrostatic rotary bell atomizer, spraying effect and quality are improved.

Description

technical field [0001] The invention relates to the field of painting, in particular to an atomizing cup head and an electrostatic rotary cup. Background technique [0002] The body of the car is generally painted with an electrostatic rotary cup. By grounding the coated workpiece as the anode, the electrostatic rotary cup is connected to a negative high voltage (0-100KV) as the cathode, and the atomizing cup head of the electrostatic rotary cup is placed on the motor. Driven by high-speed rotation, after the paint is transported to the electrostatic rotary cup, due to the centrifugal force generated by the high-speed rotation of the atomizing cup head of the electrostatic rotary cup, the paint forms a film on the inner wall of the atomizing cup head of the electrostatic rotary cup, and flows to the atomizing cup head. Edge movement, through the fine teeth on the edge of the atomizing cup head, the film is cut and broken into charged paint particles, and the charged paint pa...

AI Technical Summary

Problems solved by technology

[0005] Because the inner wall of the cup head is tapered, the paint will form uneven waves, ravines or finger-like flow marks on the inner wall, which will weaken the ability of the fine teeth on the edge of the cup head to atomize the paint with waves, ravines or finger-like flow marks. The particle size distribution range of the final atomization of the cup head is wide, and the coating film contains a certain amount of large particle paint, which affects the coating effect

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