Atomizing cup head and electrostatic rotary cup

Abstract

The invention discloses an atomizing cup head and an electrostatic rotary cup, belonging to the field of painting. The atomizing cup head includes: a cup body and a distribution plate; the distribution plate is arranged in the cup body, and a liquid filling chamber is formed between the lower surface of the distribution plate and the inner wall of the cup body; the bottom of the cup body has a first Liquid channel, the center of the distribution plate has a second liquid channel that communicates with the liquid filling cavity; there is a gap between the distribution plate and the inner wall of the cup, so that when the cup rotates and the liquid enters the liquid filling cavity, a part of the liquid rises through the gap to the edge of the cup body, another part of the liquid flows through the upper surface of the distribution plate through the second liquid channel and rises to the edge of the cup body; the edge of the cup body has fine teeth, which are used to cut the liquid; rotate The curve forming the inner wall of the cup is an inverse trigonometric cosine function curve: y=arccosx, wherein, y is the height of the cup, and x is the width of the cup. The invention improves the spraying effect and quality.

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

Images