RU1836499C - Small items processing drum - Google Patents

Abstract

Using. Electroplating, in particular, the processing of small products in submersible drums, when applying galvanic coatings, as well as washing and drying of small products. The drum for processing small products contains a multi-faceted chamber with perforated faces 2 and with a cover for loading products 4, shelves 5, fixed along the edges of the side walls and end faces of the multi-faceted chamber, overlapping perforated faces 2 and provided with perforated inserts 6 and cathode-contact strips 7 , supplying current to which is carried out through a system of sliding contacts by methods known in galvanization. 3 ill.

Description

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The invention relates to the processing of small products in submersible drums, in particular to electroplating devices, and can also be used to wash and dry small products.

The aim of the invention is to increase productivity and improve product quality.

Figure 1 presents the drum, a General view; in Fig.2 - section aa in Fig.1; in Fig.Z - node in Fig, 1,

The drum for processing small products contains a multi-faceted chamber 1 with perforated faces 2 and with a cover 3 for loading products 4, shelves 5, fixed along the edges of the side walls and end faces of the multi-faceted chamber 1, overlapping perforated faces 2 and provided with perforated inserts 6 and cathode contact strips 7, current supply, to which is carried out through a system of sliding contacts, by methods known in galvanization.

Perforation on the facets 2 of the multi-faceted chamber 1 is made in the same manner as in the known drum.

The operation of the drum is as follows.

Through the lid 3, articles are loaded into the multi-faceted chamber 1, for example, sewing needles for manual sewing. Close the lid 3, lower the drum into the electrolyte bath and turn on the power source (not shown in the drawing).

The process of plating the products is carried out by rotating the drum without reverse to the side shown in figure 2, while the products slide on the shelves 5, in contact with the cathode-contact strips 7, and through the holes in the edges 2 of the multi-faceted chamber 1 and slots of inserts 6, current flows from the anodes to

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products to be coated (the drum faces the anodes with perforated faces).

When products are poured from shelf to shelf, they are evenly distributed over the entire area of the shelves, which reduces the likelihood of their clumping during processing.

When unloading the products, the drum is removed from the bathtub, the lid 3 is opened, and since there is no inclined plate in the face where the lid is located, the products freely pour out of the chamber 1 when the drum is rotated.

The proposed device, having the same 5 functionality as the known one, allows, by passing the anode current through the slots of the shelf inserts fixed inside the working chamber, to increase the drum productivity by 10-15% and to improve the quality of the coatings.

Formulas of the invention

Claims (2)

1. A drum for processing small items such as sewing needles, containing 5 a multi-faceted working chamber with perforated walls, a cathode-contact device and shelves fixed inside the working chamber with the possibility of overlapping side faces, the shelves forming sharp corners with side faces in the direction of rotation of the drum, and the diameter of the perforation holes in the side faces decreases away from the edges of the connection of shelves with faces, characterized in that, in order to increase productivity and improve the quality of coatings, shelves are made with perforated inserts having grooves wide lower diameter of the workpiece. 2. The drum according to claim 1, wherein the inserts are made of non-conductive material. 0 5 0 Phi & 1 Figure 2