Suspended painting system for vertical enamelling machine

Abstract

The invention belongs to the technical field of enameled wire production, and relates to a suspended painting system for a vertical enamelling machine. The system comprises a mold holder and a fixed beam located on the mold holder; a clamping groove is formed in the fixed beam; an enamelling mold is in a straight cylinder shape with a vertical axis, and a mold opening is formed in a mold cavity; a spigot is arranged on the outer wall of the enamelling mold, and the spigot and the upper surface of the fixed beam are in one-way abutting fit; the distance between the top end face of the enamelling mold and the upper surface of the fixed beam is larger than the distance between the bottom end face of the enamelling mold and the lower surface of the fixed beam, so that the enamelling mold is driven by the advancing motion of a wire from bottom to top to generate vertical sliding motion relative to the clamping groove, the upward pulling force of the wire and the downward gravity of the enamelling mold are balanced with each other, and the enamelling mold is in a top-heavy suspension state; and the mold opening is arranged on the top end surface of the enamelling mold far away from the fixed beam. The system has the advantages of being flexible and convenient to use and high in cost performance, and can achieve the function of evenly painting the wire.

Description

technical field [0001] The invention belongs to the technical field of enameled wire production, and in particular relates to a suspension type painting system for a vertical enamelling machine. Background technique [0002] Painting is the process of applying wire paint on the wire to form a uniform paint layer with a certain thickness. The painting methods used by domestic enameled wire manufacturers are mainly divided into two types: mold painting and felt painting. The main advantage of using mold coating is that it is suitable for high-viscosity paint and high-speed production, and the thickness of the paint film is easy to control, which can save solvents, reduce costs, and reduce pollution; therefore, mold coating is the most common painting method. At present, the mold coating device is usually equipped with a row of enameled molds and a row of paint nozzles on the mold base, and each paint nozzle corresponds to the corresponding enamelled mold one by one, so that o...

AI Technical Summary

Problems solved by technology

In actual production, for the vertical enamelling machine, the shape and installation method of the enamelling mold refer to Figure 1, the shape of the entire enamelled mold is in the shape of a sleeve with a vertical axis, and the snap ring at the upper part of the enamelled mold is snapped into the slot of the fixed beam at the mold base or In the hole, so as to realize its positioning operation; this type of structure is widely used in the current vertical production line, but the finished line is always prone to the situation of insufficient eccentricity of the paint layer, which causes great troubles to the actual production

The reason is that the paint shown in Figure 1 After the snap ring is arranged on the upper part of the package mold, an installation structure with a light top and a heavy bottom is formed; once installed and used, when the wire passes through the cavity of the enamelled mold at high speed from bottom to top, it will drive the enamelled mold vertically upward, And make the lower ring surface of the clasp tightly against the lower surface of the fixed beam from bottom to top; as the wire continues to advance, the position of the enamelled mold is restricted again, causing the enamelled mold to form a set of fixed The extremely unstable cantilever structure whose point is close to the inlet is likely to cause uneven thickness of the paint layer on the surface of the wire, and eventually lead to the defect of insufficient eccentricity of the paint layer

Since the painting process is followed by the baking and curing process, once the paint layer with insufficient eccentricity is cured, the quality of the finished product is already constant, which obviously has a huge impact on the reputation and marketing of the manufacturer.

In addition, because the position of the die mouth that plays the role of uniform paint scraping is too close to the fixed beam, that is, the above-mentioned fixed point, the matching relationship between the entire enamelled mold and the fixed beam is too rigid; Conductors with impurities such as sand grains will forcibly hit the die opening. In mild cases, the above-mentioned uneven scraping will occur, and in severe cases, impurities will be rubbed hard and damage the primer of the conductors, causing major quality problems.

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