JPS5834190A - Plating liquid washing and collecting method - Google Patents

Abstract

PURPOSE:To efficiently collect an expensive plating liquid, by leading a substance to be treated, which has been subjected to plating, into a washing vessel having a stepped cutting part, and washing the remaining plating liquid with water. CONSTITUTION:A substance to be treated 2 which has been treated with a gold plating liquid is moved, and is led to a stepped cutting part 81 of a washing vessel 8 for washing the gold plating liquid. The part of the remaining gold plating liquid 3 adhering onto the substance to be treated 2 is washed by water 5 fed from a water feed pipe 9, and the water which has washed the remaining gold plating liquid 3 is overflowed a gold plating liquid collecting tank 7, and feed to a plating liquid collecting device, then regenerated.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a plating solution cleaning and recovery method for an automatic partial plating apparatus, and more particularly to a plating solution cleaning and recovery method that improves recovery efficiency.

2. Description of the Related Art Items to be processed, such as connector contacts for electronic exchanges, are generally plated with gold because high reliability is required. However, when the entire surface of the connector F is plated with gold, the proportion of gold in the connector becomes large. Therefore, the gold plating process for the connector contact F is generally carried out by automatic partial plating, which stops the required minimum number of parts from 11. Fig. 1 shows a side cross-sectional view of the plating solution cleaning and recovery tank of such a conventional automatic partial plating device. show. In the figure, l is a gold plating liquid recovery tank made of synthetic resin, etc.; 8 is a workpiece such as a connector contact for an electronic exchange;
is the remaining gold plating solution attached to a part of the workpiece 2, No. is the nozzle μ that sprays water δ, and No. 6 is the nozzle fi/4 for spraying water δ.
This is a water supply pipe connected to the

In this configuration, the object to be processed 8 (for example, a connector contact for an electronic exchange) that has completed the final plating step is moved and led to the gold plating solution cleaning recovery tank 1, and the object to be processed 2 is transferred to the object to be processed 2 in the gold plating solution recovery tank 1. The remaining plating solution 8 adhering to the plate is washed away. However, in such a conventional cleaning and recovery method, the remaining gold plating solution 8 adhering to the object to be treated is washed away with a large amount of ink through the nozzle μ4, so the washed remaining gold plating solution 8 becomes diluted, resulting in expensive gold plating The problem with h5 is that the collection efficiency of liquid 8 is poor.

SUMMARY OF THE INVENTION An object of the present invention was to solve the above-mentioned problems, and it is an object of the present invention to provide a new plating solution cleaning and recovery method that uses a small amount of water for cleaning and improves the recovery efficiency of the gold plating solution.

In order to achieve the above-mentioned object, the present invention provides a method for cleaning and recovering residual plating solution adhering to a workpiece plated by an automatic partial plating apparatus, in which the cleaning container is provided with a corresponding portion of the workpiece being cut. The plating solution is characterized in that the plating solution is supplied with water to clean the object to be processed in the cutting section, and the plating solution after cleaning is recovered in a recovery tank.

Embodiments of the plating solution cleaning and recovery method according to the present invention will be described in detail below with reference to the drawings.

FIG. 2 is a side sectional view for explaining one embodiment of the present invention, in which the same parts as the previous one are given the same reference numerals, and 7 is a collection tank for gold plating liquid collected from synthetic resin, etc.; Reference numeral 8 designates a cleaning container made of a cylindrical synthetic resin mixture and having a stepped cut portion 81 formed therein, and 9 a water supply pipe to the cleaning container.

In this configuration, after completing the gold plating process,
For example, a connector contact for an electronic exchange is moved and guided to a stepped cutting part 81 of a cleaning container 8 for cleaning the gold plating solution, and a portion of the remaining gold plating solution 80 adhering to the workpiece 2 is removed by the water supply pipe 9. The remaining gold plating solution 8 is washed with water 5 supplied to the cleaning container 8, and the remaining gold plating solution 8 is contained in the water 5 and overflows into the gold plating solution recovery tank 2, and is sent to the processing device shown in the figure for recovering the plating solution.

Although gold was used as the final plating process in this dormitory example, the cross-sectional shape of the cleaning container 8 was described as being cylindrical. Not only cylindrical but also angular.

It may be a trapezoid or any other shape.

As is clear from the above explanation, according to the plating solution cleaning and recovery method according to the present invention, the amount of cleaning water for residual plating solution is smaller at each frame than in the conventional plating solution cleaning and recovery method, so that the gold plating solution can be recovered. Not only can we expect to improve work efficiency, but we can also expect economic effects.

[Brief explanation of the drawing]

FIG. 1 is a side sectional view for explaining a conventional plating solution cleaning and recovery tank, and FIG. 2 is a side sectional view for explaining an embodiment of the plating solution cleaning and recovery tank according to the present invention. In the figure, l and 7 are gold plating liquid recovery tank, 2 is the object to be processed, 8 is the remaining gold plating liquid, 4 is the nozzle, 6 is water, 6 and 9 are water supply pipes, 8 is a cleaning container, 8tl is stepped cutting Department,
shows. Figure 1 Figure 2

Claims (1)

[Claims] In a method for cleaning and recovering residual plating solution adhering to a workpiece plated by an automatic partial plating device, water is supplied to a cleaning container in which a corresponding part of the workpiece has been cut, and the workpiece is removed by the cutting section. A plating solution cleaning and recovery method characterized by cleaning the plating solution and collecting the plating solution after cleaning in a recovery tank.