SU1636061A1 - Electrostatic atomizer of powder materials - Google Patents

Abstract

The invention relates to devices for the electrostatic application of powder materials to articles of various configurations. The aim of the invention is to improve the maintainability and reliability of the sprayer. The high voltage from module 9 is supplied to the corona needle 8 through the collet clamp 4. which secures the dissector of the corona needle 8 with a minimum transient resistance. When the high-voltage module 9 fails or the transition resistance between the collet clamp 4 and the corona needle 8 increases, the indicator 7 will not give a light-light signal and, therefore, powder charging will not occur. The high-voltage module cannot be repaired upon failure; therefore, it is easily removed from cavity 3 and replaced with a new one. 3 or fe

Description

The invention relates to devices for electrostatic deposition of powder materials on products of various configurations.

The purpose of the invention is to increase the maintainability and reliability of the atomizer.

In FIG. 1 shows an electrostatic atomizer, section; in FIG. 2 - collet clamp and high voltage supply to it; in FIG. 3 - spring-loaded stop with a high voltage indicator.

In the dielectric housing 1 there is a powder supply channel 2 and a cavity 3 for the high-voltage power supply unit 3. At the outlet 15 of the powder supply channel 2, a threaded clamp 4 is mounted using a threaded connection, connected to the rod 5 of dielectric material on one side, and the other end thereof is a 20 spring-loaded stop 6 in which a high voltage indicator 7 is placed. On the other hand, a divider with a corona needle 8 is inserted into the collet 4. A high-voltage unit 9 is located in the cavity 3, having a spring-loaded contact 10 with the collet clip 4. The sprayer is also equipped with a nozzle 11 for supplying the powder mixture.

The electrostatic atomizer operates as follows.

A high-voltage module 9 is inserted into the cavity 3 of the housing 1, the voltage from which is supplied through the spring-loaded contact 10 to the collet clamp 4, which 35 secures the fixing of the divider of the corona needle 8 with a minimum transition resistance.

Then the powder mixture through the pipe 11 enters the powder feed channel 2 40 and before application to the product is formed by a divider with a corona needle 8.

The presence of a high voltage on the corona needle 8 is fixed by indicator 5 7. If the high-voltage module 9 fails or the transition resistance between the collet clamp 4 and the corona needle 8 increases, indicator 7 does not give a light signal, and therefore, the powder does not charge 10.

When a failure occurs, the high-voltage module 9 cannot be repaired or restored, therefore it is easily and quickly removed from the cavity 3 and replaced with a new one.

Claims (2)

Claim 1. An electrostatic powder material atomizer, comprising a housing with a powder feed channel, a divider with a corona electrode, and a high voltage power supply, are distinguished by this. that, in order to improve maintainability and reliability, 25, a body with a corona needle is installed in a collet clamp, which is equipped with an axial displacement means made in the form of a rod of insulating material with a spring-loaded stop, while the spray gun housing 30 is equipped with a high-voltage non-contact indicator, and the high-voltage block located in the housing cavity is electrically connected to crown needle through collet. 2. Spray pop. 1, distinguishing · with that. that the high voltage indicator is made in the form of a neon lamp mounted in a spring-loaded stop, one of the electrodes of which is grounded. Φυε.Ζ. Fiz. B