SU1597228A1 - Unit for spray working of articles - Google Patents

Abstract

This invention relates to a technique for the chemical preparation of surfaces during the application of paints and electroplatings. The purpose of the invention is to improve the quality of processing products. To do this, the vertical plates are installed with a gap to the side walls of the chambers and are deployed within the slope of the floor in the direction of the exit of the nozzle holes. 5 il.

Description

The invention relates to a technique for chemical surface preparation during the application of paint or electroplating coatings and can be used in any industry, for example, in mechanical engineering, in chemical surface preparation units with an overhead conveyor of continuous action.

The purpose of the invention is to improve the quality of processing products.

FIG. 1 shows the proposed unit, a longitudinal section; in fig. 2 - the same, top view; in fig. 3 - movement pattern of the liquid jets; in fig. 4 shows section A-A in FIG. 3: in FIG. 5 is a view B in FIG. 4. I

The unit comprises a housing 1, inside which the treatment chambers 2 and the intermediate chambers 3 are sequentially alternated. In the chambers 2, which are blasting zones, baths 4 with treatment liquids are placed.

mi, contours with nozzles 5 and pumps 6 supply processing liquids in the contours. The nozzles 5 installed in the intermediate chambers 3 form irrigation contours, the purpose of which is to prevent the processed products from drying and secondary corrosion to occur in the flow zones of the chambers 3. Diaphragms 7 with transport openings for the passage of products are installed between the treatment chambers 2 and the intermediate chambers 3 . Intermediate chambers 3 in their lower part have a field 8 with slopes in the sides of adjacent baths 4 to drain the processing liquid and are equipped with a means to prevent the processing liquids from being made in the form of vertical plates 9 installed on both sides of the conveyor South to the side walls of the chamber and within the slope of the floor, the processing of the jets of the processing liquid unfolded in the plane of motion of the main mass.

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For ease of installation, vertical plates 9 are fixed on cross-arms 11 mounted on housing 1. To transport products through the blasting unit, it serves as transport 10 in the form of an overhead conveyor.

During operation of the unit included in the automated dyeing line, the products enter the unit on the conveyor 10 first into the first pass-through processing chamber 2. The treatment liquid, for example a degreasing solution, from the bath t is pumped by pump 6 to the nozzles 5 of the contour. The nozzles pour the product from all sides. The force of the jet and the chemical action of the processing liquid clean the surface of the product from contamination. During the process, a part of the jets of the processing liquid, reflected from the product, falls on the diaphragm 7 and, being pressed from them, flows into the bath k. Another part of the jets, drops and splashes through the transport projection in the diaphragm 7 enters the intermediate chamber 3, extinguishes its energy, the passage between the plates 9 and hit the walls of the housing 1, the energies of the reflected suit of the streams and the splashes extinguish the plates .9. The energy parts of the jets and sprays are on. entered into the gap between the plates 9, extinguishes them.

When the product is transported by the conveyor 10 into the intermediate chamber, the remaining drops of the processing liquid, as well as liquids flowing through the plates and walls along the slope of the floor 8, return to bath A. Thus, the product passes

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The cut of the treatment zone of chambers 2 and the waste zone of chambers 3 is cleaned and prepared for applying paint coatings, and the treatment fluids of the respective treatment chambers (zones) are returned to their baths for subsequent use.

The installation of vertical plates with a turn in the plane of motion of the main mass of the jets of the processing liquid facilitates the entry of jets and splashes into the space between the plates, the kinetic energy of the jets and splashes is quenched due to their impact on the side walls of the housing of the unit, and the energy of the reflected splashes - vertical plates, which contributes increasing the efficiency of trapping jets and sprays of working fluids, prevents their mixing.

Claims (1)

Invention Formula A unit for blasting products, containing successively arranged and alternating treatment chambers with nozzles and slip chambers having floors with slopes towards the treatment chambers, a conveyor for moving products and vertical plates installed on both sides of the conveyor in intermediate chambers that differ This is due to the fact that, in order to improve the quality of product processing, the vertical plates are installed with a gap to the side walls of the chambers and, within the slope of the floor, are deployed in the direction of the exit of the holes f jungle eleven - | c .. ,,. /. iiji.i / five / I ten -j Schtsg.1 / 1597228 5 9 S7 / I / LA FIG. 2 Shig.Z Type B eleven