JPH04222237A - Metallic traveler for spinning frame - Google Patents

Abstract

PURPOSE:To provide a metallic traveler for spinning frame having excellent initial conformability to a ring and high lubricity and abrasion resistance and most suitable for the fine spinning and twisting at a high speed and high production rate. CONSTITUTION:A hard chromium plating layer 2 having small recesses 3 on the surface is formed on at least the ring-contacting inner side face of a metallic traveler 1 and the surface of the chromium plating layer is covered with a composite coating film having an epoxy resin coating film 5 containing molybdenum disulfide 4.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a metal traveler for spinning machines used in spinning machines, yarn twisting machines, etc.

0002

[Prior art and problems to be solved by the invention] Conventionally,
Metal travelers made of hard steel wire, which are commonly used in spinning machines and yarn twisting machines, create severe friction between the ring and the traveler under high-speed spinning conditions that aim for high productivity, such as in recent years. The traveler wears rapidly, shortening its lifespan, and the traveler burns, causing the traveler to scatter, causing thread breakage.

[0003] Therefore, as a means to improve the wear resistance of the traveler in order to eliminate these causes, it has been considered to apply chrome plating to the traveler, but although chrome plating is of a very high quality, The problem is that the spinning force is very high in the early stage of spinning, and yarn breakage occurs frequently.Furthermore, since there are cracks on the plating surface, this causes peeling and wear, which can lead to abnormalities in the traveler. It had the disadvantage of causing wear.

0004

[Means for Solving the Problems] The present invention has been made to solve the above-mentioned problems, and includes a hard metal plating layer having minute recesses on the surface, at least on the inner surface of the traveler that contacts the ring. By forming a lubricating synthetic resin coating or a synthetic resin coating containing a lubricating substance on the surface of the coating, a composite coating is created in which the minute depressions on the hard metal plating surface are filled with a lubricating synthetic resin. This provides a metal traveler for spinning machines that is ideal for spinning and twisting at high speeds and high production.

[0005]

[Function] The metal traveler for spinning machines of the present invention has a highly hard chromium plating layer on the traveler surface and a composite coating of an epoxy resin containing molybdenum disulfide with excellent self-lubricity or PTFE resin with excellent lubricity. By forming , the initial conformability to the ring is good,
Since it has lubricity and wear resistance, it can maintain a stable spinning state for a long time even under high rotation and high speed spinning conditions.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIGS. 1 and 2 are a front view and a sectional view of a metal traveler for a spinning machine, showing one example of the present invention. As shown in the figure, a hard chrome plating layer 2 with a thickness of 50μ is applied to the entire surface of the horizontal (or vertical) metal traveler 1 or the inner surface that makes sliding contact with the ring.
The chromium-plated surface is electrochemically
As shown in FIG. 3, minute recesses 3 are provided by chemical or mechanical methods.

Furthermore, an epoxy resin coating 5 containing 65% molybdenum disulfide 4 is formed on the surface of the hard chromium plating layer having the micro-recesses 3 to a thickness of 5 μm,
A metal traveler for a spinning machine was fabricated with a composite coating filled with an epoxy resin containing molybdenum disulfide in minute depressions on the plating surface.

[0008] The thickness of the hard chromium plating layer to be formed is preferably 10 to 100μ; if it is less than 10μ, sufficient wear resistance cannot be obtained, and if it exceeds 100μ, the plating layer is likely to peel off due to impact. , undesirable. Also,
The thickness of synthetic resin coating such as epoxy and PTFE is 1 to 20.
μ is preferable, and if it is less than 1 μ, a sufficient lubricating effect cannot be obtained, and if it exceeds 20 μ, peeling will occur more easily, which is not preferable. Further, the content of molybdenum disulfide, which is a lubricating substance added to the synthetic resin, is preferably 40 to 85%, and 40%
If it is less than 85%, the lubricating effect decreases, and if it exceeds 85%, the strength of the synthetic resin coating itself decreases, which is not preferable. In addition to molybdenum disulfide, lubricating powders such as carbon and graphite can also be used.

[0009]

[Effects of the Invention] With the above structure, the present invention forms a lubricant layer on the frictional sliding part of the traveler and the ring, so the initial conformability of the traveler to the ring is greatly improved, and the traveler's Extend lifespan. Furthermore, since a hard chrome plating layer is formed on the base, the lifespan is further extended and it can be used for a long time. In addition, since minute recesses are created on the hard metal plating surface and filled with synthetic resin containing a lubricating substance, the lubricating effect continues for a long time even after the lubricating synthetic resin coating disappears due to friction with the ring. be done. Therefore, the effect of reducing yarn breakage and traveler burn is sustained for a long time, and the traveler life can be extended to a large extent, and furthermore, it can be used under high-speed spinning conditions. This is an effective invention.

[Brief explanation of the drawing]

FIG. 1 is a cutaway front view of a metal traveler for a spinning machine showing one embodiment of the present invention.

FIG. 2 is an enlarged sectional view taken along line A-A in FIG. 1;

FIG. 3 is an enlarged sectional view of a main part of a composite coating formed on the surface of the metal traveler of the present invention.

[Explanation of symbols]

1 Horizontal metal traveler 2 Hard chrome plating layer 3. Micro recess 4 Molybdenum disulfide particles 5 Epoxy resin coating

Claims (4)

[Claims] Claim 1: A hard metal plating layer having minute recesses is formed on at least the inner surface of the metal traveler that contacts the ring, and the surface of the plating layer contains a lubricating synthetic resin coating or a lubricating substance. 1. A metal traveler for a spinning machine, characterized in that a composite coating is formed by forming a synthetic resin coating, and filling minute recesses on a hard metal plating surface with the synthetic resin. 2. The metal traveler for a spinning machine according to claim 1, wherein the plating metal is chromium. 3. The metal traveler for a spinning machine according to claim 1, wherein the synthetic resin coating is an epoxy resin containing molybdenum disulfide. 4. The metal traveler for a spinning machine according to claim 1, wherein the synthetic resin coating is made of PTFE resin.