Opposite-pulling electricity-leading type universal hanging tool used in screw head electroplating process

Abstract

The invention discloses an opposite-pulling electricity-leading type universal hanging tool used in a screw head electroplating process. The opposite-pulling electricity-leading type universal hanging tool comprises a hanging tool unit, the hanging tool unit comprises two hanging tools which are distributed in a mirror symmetry manner, the opposite ends of the two hanging tools are screw head extending ends, a screw head is clamped on each of the two hanging tools, so that the two screw heads are arranged in a mirror symmetry manner; and the tip parts of the two screw heads are opposite to each other and are close to each other. The opposite-pulling electricity-leading type universal hanging tool has the beneficial effects of low electroplating cost, low labor intensity and high efficiency.

Description

technical field [0001] The invention relates to an electroplating conductive hanger, in particular to a pair-pull electric universal hanger used in the screw head electroplating process. Background technique [0002] For the quality of the injection molding process of the injection molding machine, the quality of the screw head plays a key role, and the chrome plating in the screw head electroplating process is an important part of determining the quality of the screw head. [0003] Rack plating is often used in the screw head electroplating process, and electroplating conductive racks must be used for rack plating. The structure of the traditional electroplating conductive hanger is as follows: figure 1 As shown, it includes a transverse frame body 100 and a hanger unit 101. The hanger unit 101 clamps a single screw head 109. The hanger unit 101 consists of a cathode 102, a cathode installation hanger 103 for installing the cathode 102, and a clamp for clamping. The singl...

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Problems solved by technology

This electroplating conductive hanger is to prevent the pointed part of the screw head 109 after electroplating from burring, too thick and other bad situations. But the introduction of negative electrode 102 has caused following problem simultaneously: 1) negative electrode 102 is the planar helix that external diameter is not greater than the diameter of screw head 109 that artificial wire is wound out, and requires that helical wire is even and dense, and this just makes the manufacture of negative electrode 102 relatively Difficult, professional technicians are needed to do it manually, and the manufacturing cost of the cathode 102 is high; 2) the cathode 102 is made of iron material, and the cathode 102 is immersed in the electroplating solution in the screw head 109 electroplating process. On the one hand, due to the screw head 109 During the electroplating process, it is in an electrified state, so the cathode 102 will be electroplated, wasting energy, resources and efficiency; on the other hand, the iron ions in the cathode 102 will be decomposed under the electroplating action, and will be dissolved in the electroplating solution to produce hexavalent chromium This type of heavy pollutants, the environmental protection treatment of the polluted electroplating solution and the cost of replacing the electroplating solution are all very expensive, which greatly increases the cost of electroplating and increases the labor intensity; 3) between the pointed part of the screw head 109 and the cathode 102 The smaller the gap, the better, so that the electroplating effect is better, but because the cathode 102 is made of iron material, it is very soft, so the cathode 102 is easy to touch and deform when it enters the electroplating tank. If the cathode 102 and the screw head 109 If the pointed part contacts, then the pointed part of the screw head 109 will not be able to be electroplated with chrome

In addition, the hanger unit 101 in this electroplating conductive hanger can only clamp a single screw head 109, and only one screw head 109 can be electroplated at a time, which is inefficient

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