SU150729A1 - Anodostroyny machine for galvanic processing of products - Google Patents

Description

Anode-jet apparatuses are known for electroplating products, such as chrome-plating of crankshafts. These devices consist of an anode-jet and cathode device, a collection and pressure vessel, heating and cooling equipment, and a hydraulic system for pumping solutions. The products to be processed are still fixed, and the solutions and hot air are fed alternately through hollow anodes.

However, the process of electroplating products in such machines is very time consuming and causes waste of time to perform basic and auxiliary operations.

The proposed automaton differs from the known ones in that the anodic jet device is made up of several sections, each of which consists of an anode collector, centering nozzles and replaceable anodic jet nozzles made of detachable parts for covering the treated surface of the product. The supply of solutions, wash water and hot air into the interelectrode space formed between the product and the anode is carried out according to a predetermined program. This embodiment allows to extend the range of processed products and increase productivity.

The drawing shows the proposed automaton.

The main assembly of the automaton is an anode-jet device, with the help of which all operations of the wear-resistant chrome plating process are carried out, for example, electric degreasing, chrome plating, anodizing, cold and hot washes, drying of parts with hot air. The device is a multi-compartment aggregated structure, each section of which consists of an anode collector 7, centering a pair of 150729-2 tubes 2 protected by vinyl plastic covers, and interchangeable anodic-jet nozzles 3.

The anode-jet nozzle is made up of two components, which form a hollow cylinder, which is hollowed from the ends. The inner wall of the flashing face, facing the working surface of the workpiece, has a number of through cuts or round holes through which working solutions are fed. The upper part of the cylinder 1 of the nozzle is equipped with a mounting handle 4, the lower part has a wedge-shaped nozzle which fits into the similar hole of the centering device of the anode collector. One end of the anode collector is connected to the supply pipe 5, the other (plugged) is in contact with the cathode thickness 6. Both ends of the collector are rigidly fixed to the body of the waste bath 7. The anode collector is insulated from the body of the bath using vinyl oxide washers and bushings.

Depending on the type of crankshaft, the cathode support device 8 of the machine can be placed in the upper part of the waste bath or along its walls 9. Contacting of the shaft with the cathode shanks is provided by the weight of the part itself. Isolation of cathode shtangs from the body of the bath is carried out using vinyl plastic gaskets. The crankshaft is mounted on the cathode support of the automaton with the aid of a hand crank 10 equipped with a mobile hoist.

Feed solutions for crankshaft processing come from pressure tanks. Pressure tank P is used for degreasing electrolyte. The tank is equipped with heating devices with automatic thermostat. The adjustment and replenishment of the degreasing electrolyte is performed automatically by means of the dispenser 12.

The pressure tank 13 is intended for chromic electrolyte. The tank is equipped with heating devices and an automatic thermostat. To study the chromic electrolyte, in order to establish in it a normal content of trivalent chromium salts, the tank is equipped with a direct current strip and plate electrodes. Correction and replenishment of the electrolyte with chromic anhydride is automatically carried out using the equalizer 14.

Anti-bleaching and chromic electrolytes from pressure tanks by means of taps 15 are alternately supplied to one common collector 16, and then through the anode-jet device of the machine to the workpiece. Here, piping 17 and 18 is supplied with wash water, and 19 piping air for the shaft is fed through the pipeline. These processes occur automatically with the help of the control unit 20, which regulates the thermal, electrical and electrolytic modes of the technological process.

The spent electrolytes from the inter-single-spaced space flow into the waste tank, and then with the help of a centrifugal pump 21 by means of taps 22 are returned to the pressure tanks. The discharge of wastewater into the sewer system is carried out with the help of a crane 23. The remaining taps are provided for maneuverability of the system.

All the equipment of the machine is mounted on one common metal frame of channel bars 24, which is installed on a solid foundation. The machine is equipped with a special onboard suction system 25.

For the purpose of aggregating anode-jet devices, maneuverability and ease of operation of the machine, the latter is assembled from separate sections. The number of sections is set depending on the program of the plant (workshop).

Subject invention

Anodostrum machine for electroplating products, such as chromium-plating crankshafts, consisting of anodic-jet and cathodeorizing device, team and pressure tanks, heating and cooling equipment and a hydraulic system for pumping solutions, in which the products to be processed are fixed, and solutions and mountains the air is fed alternately through hollow anodes, characterized in that, in order to expand the range of processed products and increase labor productivity, anodicity The device is made up of several sections, each of which consists of an anode collector, centering nozzles and replaceable anodic jet nozzles consisting of detachable parts for covering the treated surface of the product, while supplying solutions, flushing water and hot air into the electrode space formed between the product and the anode, carried out according to a predetermined program.

- 3 -L 150729