JPS62223326A - Ring for spinning machine - Google Patents

Abstract

PURPOSE:A ring for spinning machines, having improved abrasion resistance and strength and low friction coefficient and capable of keeping good spinning condition, by forming a ring flange part from a mixture of a ceramic with carbon. CONSTITUTION:A ring for spinning machines obtained by forming at least a ring flange part from a mixture of a ceramic with carbon and, as necessary, further impregnating the ring flange part with a metal or resin, e.g. polyamide, polyester, acrylic resin, tetrafluoroethylene resin, etc.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a ring for a spinning machine that can be operated at high speed and is used in a spinning machine, a yarn twisting machine, etc. of Shichibo Textile Industry.

Conventional Technology and Problems Traditionally, rings for spinning machines are made of carbon steel and are heat-treated by carburizing and quenching. However, friction caused when the traveler slides on the ring flange causes wear, The drawback is that the rapid increase in centrifugal force caused by the high speed increases the frictional force, which tends to cause premature peeling and wear and thread breakage.

Therefore, there are rings for spinning machines that use ceramics as a wear-resistant material, but the coefficient of friction between the ring and the traveler is large, the spinning force is also large, and there is a limit to high-speed operation. The problem is that I can't.

Means for Solving the Problems The present invention solves the problems of the conventional spinning machine rings described above, and maintains a low coefficient of friction without lubrication under the high temperature caused by the high speed rotation of the trapezoid 2, and has wear resistance. The present invention provides a large ring for a spinning machine, in which at least the ring flange is formed of a mixture of ceramics and carbon, and if necessary, further impregnated with metal or resin.

Example 1 An embodiment of the present invention will be described based on the drawings.

The ring for a spinning machine of the present invention is formed by molding a mixture of ceramics and carbon into the shape of a ring for a spinning machine (1) as shown in FIG.

The above rings for spinning machines are made of alumina, silicon carbide, silicon nitride,
One type of ceramic such as zirconia, or 2F11 or above, and a carbon grain such as amorphous carbon, carbon graphite, glassy carbon, diamond, or amorphous diamond, or two or more types are mixed and molded into a cylindrical shape. , which is fired by heating at a high temperature, and is formed by firing in a mold of a predetermined shape and, if necessary, machining.

Furthermore, granular ceramics and a carbon material such as a thermosetting resin can be mixed and sintered during the carbonization process.

Further, in order to further improve strength and lubricity, the porous portion formed of the mixture of ceramic and carbon can be impregnated with metal or resin.

In this case, the metal to be impregnated can be selected from all metals such as iron, nickel, chromium, tungsten, etc. and the material with the optimum performance required.

It may also be used as a mixture or alloy of two or more metals, or as a compound such as a metal oxide, carbide, nitride, or sulfide.

In addition, the above resins include polyamide resins, polyester resins, acrylic resins, fluorinated resins such as tetrafluoroethylene, etc.
II, or a mixture of two or more types can be used.

Further, the impregnation can be carried out by mixing metal and resin, by impregnating only the 7-lung portion, or by limiting the impregnation to only the part that contacts the trapella.

Furthermore, in the above example, the ring is molded into the desired ring shape, machined, surface treated, and then impregnated with metal or resin, but it is possible to use a material made of a mixture of ceramics and carbon impregnated with metal or resin. After forming the desired shape by machining, it may be formed by surface treatment.

Embodiment 2 FIG. 2 shows a sectional view of a +7 Y-gage for a spinning machine according to another embodiment of the present invention.

Using the method of Example 1, only the 7 flange part (2) of the ring is molded from a mixture of ceramics and carbon, and if necessary, the ring flange part (2) is molded by impregnating it with metal or resin using the same method. After that, the seven flange portions (2) are fixed to the ring base (3) made of a material different from that of the seven flange portions, such as carbon or synthetic resin, by adhesive or the like, thereby forming the spinning machine of the present invention. Configure the ring for use.

Incidentally, FIGS. 8 and 4 are cross-sectional views of different embodiments of rings for spinning machines according to the present invention.

Figure 8 shows a stepped part (4) at the bottom of the 7th flange part (2),
In the figure, a ring for a spinning machine is constructed by providing a recess (5) and fitting and fixing the flange (2) and ring base (3).

In this case, the bonding between the 7 flange portion and the ring base (3) becomes even stronger.

FIG. 5 shows a curve diagram of operating time and abrasion loss when spinning was carried out under the following test conditions using the spinning machine ring of the present invention and the conventional spinning machine ring (9).

test conditions Ring inner diameter: 40tm' 7 Lunge width: &2. habit Fiber: ester/cotton 45'.

Spindle rotation speed: 27000 r, p, m From Fig. 5, compared to the conventional ring for spinning machines (3), the ring for spinning machines (4) of the present invention has a wear loss of about 1/4, and the life span is also 4.
It can be seen that it is more than twice as long.

Effects of the Invention As described above, the ring for spinning machines of the present invention has at least the ring flange portion made of a mixture of ceramics and carbon, so it has the high wear resistance of ceramics, the strong holes, and the low coefficient of friction due to carbon. Sharing the properties of
There is less thread breakage and good particle quality can be maintained.

It has sufficient strength against high-speed rotation of the trapeller and increased spinning force, so it significantly extends the life of the ring.

Furthermore, by impregnating the ceramic and carbon mixture with metal or resin, the strength is further increased, the friction coefficient is further improved, and the spindle rotation rate is 300.
This invention has excellent effects such as being able to rotate at high speeds of 00r, p, m or higher.

[Brief explanation of drawings]

FIG. 1 is a partially cutaway sectional view of a spinning machine according to one embodiment of the present invention, FIGS. 2, 3, and 4 are sectional views of other embodiments of the present invention, and FIG. It is a relationship curve diagram of abrasion loss and operation time showing a comparison between the present invention and the conventional technology. +1+... Ring for spinning machine (ri... Ring flange part (3)... Ring base (4)... Step part (6)... Concave part

Claims (3)

[Claims] (1) A ring for a spinning machine, characterized in that at least the ring flange portion is formed of a mixture of ceramics and carbon. (2) The ring for a spinning machine according to claim 1, wherein the mixture is impregnated with metal or resin. (3) The spinning machine according to claim 1, characterized in that the carbon is one or more of amorphous carbon, carbon graphite, glassy carbon, diamond, amorphous diamond, etc. ring.