RU1789297C - Device for applying coating to small articles - Google Patents

Abstract

Usage: refers to devices for the liquid processing of small products in bulk, in particular for operations degreasing, priming and staining to improve the quality of the coating. SUMMARY OF THE INVENTION: Device The invention relates to devices for liquid processing small items in bulk, in particular for degreasing, priming and painting operations. A device is known for coating small articles containing a rotatable container with perforation on the bottom, a dye sprayer and a nozzle for supplying coolant installed in the upper part of the tank, and a nozzle for removing coolant mounted under the perforated bottom. A disadvantage of the known device is that the sprayed supply contains a rotatable container with a perforated surface, a device for supplying coolant through the perforation holes, which is fixedly mounted relative to the axis of the container, an air duct and a dye sprayer located in the upper part of the container. Perforation on the surface is made in rows located along the generatrix of the container with the same angular distance between them and the identical location of the holes in each row. The device is characterized in that the coolant supply device is made in the form of collector-carrying nozzles mounted parallel to the perforation rows of the container with an angular distance between the collectors equal to the angular distance between the perforation rows of the container. The axes of the nozzles of the collectors lie in the same plane with the axes of the corresponding level of the holes of the perforation of the container. 2 ill. the solution and the heat carrier are produced in one direction (from above), which presses the articles against the bottom and enhances the friction between the articles and the perforated bottom, as a result of which a sufficient coating quality is not ensured. A device for coating small articles is known, comprising a rotatable container with perforation in the bottom and side walls, a device for supplying coolant through the perforation holes, which is a casing located around the container and having a pipe for supplying coolant into the casing, and then through the holes I ate VI 00

Description

perforations into the container, a nozzle for the removal of coolant, a dye spray located in the upper part of the container.

A known device reduces friction between products and perforated walls, however, the rate of mixing of products and their heating under the influence of the coolant decreases from the wall of the container to its center, which affects the quality of the coating.

The goal is to improve the quality of the coating, which is achieved due to the fact that the device for supplying coolant is made in the form of carrier nozzles of collectors mounted parallel to the perforation of the container with an angular distance between the collectors equal to the angular distance between the rows of perforation of the container, and the axis of the nozzles collectors lie in the same plane with the axes of the corresponding level of the perforation holes of the container.

In FIG. 1 shows a General view of the proposed device; in FIG. 2 is a section AA in FIG. 1.

The device comprises a chamber 1 with a cover 2 mounted on a stand 3. On the underside of the bottom of the chamber, an engine 4 is installed, on the shaft of which a container 5 is installed, around which manifolds 6 with nozzles 7 are placed for supplying heated compressed air through pipeline 8. Nozzles 7 on the vertical collectors are arranged in such a way that their axes on each collector during rotation of the container 5 can coincide with the axis of the holes in each row of perforation on

the side walls of the tank 5, and the axis of the nozzles in each of the radial collectors located under the bottom of the tank may coincide with the axis of the holes in each radial row of the tank bottom. The heat carrier is removed from the chamber 1 through a nozzle for draining the heat carrier. The supply of dye is carried out by a pump 10 from the paint collector 11 along the ink supply

the pipeline 12 through the nozzles 13 and then by gravity through the shut-off quick-acting valve 4 into the paint collector 11.

The device operates as follows.

With the lid 2 open, a batch of parts is poured into the container 5 and the chamber 1 is hermetically closed with the lid 2. With the valve 14 closed, the container 5 through the nozzles 13

dye is supplied to color the parts. Then, the valve 14 is opened, and the dye drains the paint collector, after which, by means of the motor 4, the container 5 is rotated, and excess paint is removed by centrifugal forces both from the container and from the parts through the perforation holes. Then through the nozzles 7 serves heated compressed air, which, acting on the parts through the holes in

the walls and the bottom of the container, throws them away from the walls and the bottom and mix them, not allowing them to stick together, while drying. Exhaust air-coolant is removed from the chamber through the duct 9.

The dried parts are removed from the container and the process is rotated.

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Claims (1)

SUMMARY OF THE INVENTION A device for coating small articles, comprising a rotatable container with a perforated surface, a device for supplying 45 coolant through perforation holes mounted stationary relative to the axis of the container, an air duct and a dye sprayer located in the upper part of the container, the perforation being on the surface is made in rows located along the generatrix of the tank with the same angular distance between them and the identical location of the holes in each row, characterized in that, in order to improve the quality of the coating, the device for supplying coolant is made in the form of supporting nozzles of collectors installed parallel to the rows of perforation of the tank with an angular distance between the collectors equal to the angular distance between the collectors rows of perforation of the container, the axes of the nozzles of the collectors lying in the same plane with the axes of the corresponding level of the holes of the perforation of the container.