Electroplating device for a zinc alloy zipper

Abstract

The invention belongs to the field of electroplating of zinc alloy zippers, and particularly relates to an electroplating device for a zinc alloy zipper. The electroplating device has the advantages that the structure is simple, the practicality is high, the operation is convenient, and inactive metal can be electroplated. The electroplating device comprises a cylinder body, more than two cathode electroplating wheels, and electroplating anodes, wherein electroplating liquid is put into the cylinder body for electroplating, the cathode electroplating wheels are rotatably arranged between the front side wall and the back side wall of the cylinder body, the electroplating anodes are arranged on the inner wall of the cylinder body, the circumference of each cathode electroplating wheel is uniformly provided with electroplating cathodes which extend outwards in the radial direction of the cathode electroplating wheel, the two adjacent cathode electroplating wheels are arranged in a closer way, a roller shaft is respectively positioned between the two adjacent cathode electroplating wheels between the front side wall and the back side wall of the cylinder body, the zinc alloy zippers winding around the cathode electroplating wheels are arranged closer to the two cathode electroplating wheels by the roller shaft, and the cathode electroplating wheels and the electroplating anodes are respectively connected with a positive electrode and a negative electrode of an external circuit.

Description

technical field [0001] The invention relates to the field of electroplating of zinc alloy zippers, in particular to an electroplating device for electroplating inactive metals on zinc alloy zippers. Background technique [0002] After the existing zinc alloy zipper is die-casted, its surface is often rough, and the color is poor and unsightly. Usually, a layer of metal protection layer, such as copper and gold, is electroplated on the surface of the zinc alloy zipper. And because of the needs of electroplating, zinc alloy zippers often all can wrap more than one conductive wire in its chain belt during its manufacturing process, for the conduction between each chain element when being used for electroplating. Chinese Patent No.: ZL 200820145408.8 discloses an improved structure of zinc alloy die-casting zipper, including chain elements, sliders, and two chain belts. A row of chain teeth is respectively embedded in the opposite sides of the two chain belts, and the two rows o...

AI Technical Summary

Problems solved by technology

However, the conductivity of chromium solution is extremely poor, especially on items such as zippers that are not directly connected but connected by conductive wires, the conductive distance is greatly limited.

Zinc alloy zippers are widely used in modern industry, and their lengths vary. When the zinc alloy zipper is electroplated, its main body is usually a chain belt without a zipper head and a chain tooth inlaid on the chain belt. Bundle or longer zippers are electroplated first, then cut, fitted with zipper heads, and become separate zippers, which also limits the application of zinc alloy zipper chrome plating technology

Moreover, in the process of chrome plating, if the current is interrupted, the process of chrome plating will stop. Even if the current is reconnected for electroplating, the chrome plated on the zinc alloy zipper will peel off due to the condensation of chrome.

Similarly, many metals are inactive metals similar to chromium metal. The conductive copper wire in the zinc alloy zipper has extremely poor conductivity in its ionic solution, and is also not suitable for electroplating, which has great limitations.

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