A bar continuous chrome plating production line

Abstract

The invention discloses a bar material continuous chrome plating production line. The automatic feeding device and the automatic unloading device include a frame and an active driving device and a passive driving device on the mounting frame. The active driving device is composed of two roller tables arranged in parallel , each roller table is composed of several driving shafts on which active driving rollers are installed in series, and the passive driving device is composed of passive driving rollers arranged at intervals above the roller table along the direction of the roller table, and the passive driving roller and The active driving roller forms an included angle in the vertical plane, and the included angle decreases successively along the conveying direction of the bar. The roller tables in the automatic feeding device and the automatic unloading device are connected correspondingly to form the conveying of the bar. Roller table; the first cathode device, the activation device, the chrome plating tank and the second cathode device are sequentially arranged along the conveying direction of the conveying roller table from left to right.

Description

technical field [0001] The invention belongs to the technical field of chrome plating, and in particular relates to a bar material continuous chrome plating production line. Background technique [0002] Electroplating is a surface processing technology. Due to the excellent performance of the chromium plating layer itself, the commonality between electroplating chromium and other plating types and its own unique characteristics, electroplating chromium occupies an extremely important position in the electroplating industry and is listed as one of the three One of the largest plating species. [0003] Existing chrome-plating equipment has various forms, and chrome-plated workpieces are ever-changing. Among them, the bar chrome plating production line is usually composed of a conveying device, a cleaning device, a cathode device, an activation device and an electroplating tank connected in sequence. The conveying device is used for the conveying and lifting adjustment of th...

AI Technical Summary

Problems solved by technology

[0004] (1) Since the bar is running on the conveying device, its centerline and the centerline of the anode device in the chrome plating tank are usually not on the same straight line, which leads to uneven current density distribution on the bar surface during the chrome plating process, resulting in chrome plating After the completion, the thickness of the coating varies from thick to thin and uneven, which seriously affects the quality of the coating of the bar; in addition, the bending of the bar during processing and transportation causes a certain degree of curvature of the bar itself, which further aggravates the mandrel. Surface coating quality defects;

[0005] (2) Due to the curvature of the bar itself, the material of the rollers of the conveying device, and the defects in the height adjustment of the rollers during the operation, the traction obtained by the bar when it passes through different rollers is different, resulting in end-to-end connection The connection part of the bar material is easy to loose during operation, resulting in an increase in the resistance of this part, which is prone to heat generation and poor conductivity when passing through the cathode device, thus affecting the quality of the coating on the surface of the workpiece

This can easily lead to other chrome plating defects caused by the weak connection of the connection parts, which not only affects the quality of the coating, but also greatly reduces the productivity of the equipment, and also increases the cost of chrome plating and the labor intensity of the staff.

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