JPS6141329A - Rotary disk for spinning - Google Patents

Abstract

PURPOSE:The titled rotary disk, obtained by forming a substrate from a highly rigid material, e.g. metal, forming a resin layer on the surface thereof, and forming a ceramic coating on the surface thereof, having improved durability and economic efficiency, and used for twisting yarns without corrosion. CONSTITUTION:A rotary disk (A) for spinning, obtained by forming a substrate 1 from a material having a relatively high rigidity, e.g. metal such as Al, carbon fibers or glass fibers, forming a resin layer 3 on the surface thereof, and forming a ceramic coating 4 on the surface thereof. The substrate 1 is perforated with many holes 2. When the substrate 1 is coated with the resin layer 3, the resin flows into the holes 2, and the substrate 1 is firmly bonded to the resin layer 3.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an improvement of a spinning rotary disk used for twisting yarn in a spinning process of a spinning machine.

[Prior Art] Generally, in order to twist a yarn in the spinning process, the yarn is passed through a hollow shaft rotating at high speed, and the dazzling light is guided from the side of the top of a conical rotary disk fixed to the tip of the hollow shaft. Although the technique of rotating a shaft and a rotary disk has become widespread, conventional rotary disks have been made of a single piece of metal, such as aluminum, molded into a generally conical shape.

[Problems to be Solved by the Invention] Various chemicals are used in the above-mentioned spinning operation, and if the rotary disk is used in this atmosphere, the rotary disk will corrode, and if its surface becomes rough or bulges, The thread came into contact with the raised portion, causing thread breakage.

[Means for Solving the Problems] Therefore, the present invention forms a base body from a material having relatively high rigidity such as metal or carbon fiber, forms a resin layer on the surface of the base body, and further coats the surface with a ceramic coating. The rotary disc was formed by applying the following steps.

[Function] Since a resin layer is formed between the substrate and the ceramic, the resin layer protects the substrate from the chemical atmosphere, and also prevents irregularities on the surface of the substrate, such as when glass fiber is used for the substrate. Also, the surface can be made smooth by stacking resin layers, so that the surface of the rotary disk becomes smooth after applying the ceramic coating.

[Example] In FIG.
′ is formed on the substrate. The base body 1 is made of a material having relatively high rigidity, such as metal such as aluminum, carbon fiber,
Glass fiber etc. are used.

A large number of through holes 2, 2, . . . each having a dish-shaped stepped portion 2a on the inside are bored in the circumferential surface of the base body 1.

Then, the surface of this base 1 is coated with a resin layer 3 as shown in FIG. This resin J! At the time of molding, molten resin flows into the through holes 2, 2, etc. and the stepped portion 2a thereof, and in a solidified state, the resin 73 is engaged with the stepped portion 2a, thereby forming the base l.
are combined into one.

Then, a ceramic coating 4 is applied by plasma welding ceramic to the surface of this resin M3 to form a rotary disk A.

In addition, 5 in FIG. 3 is a through hole bored in the cylindrical portion 1'.
As is well known, the yarn C in the hollow shaft B is led out through the through hole 5.

Therefore, the rotary disk A configured in this way
Even if chemicals pass through the pinholes in the ceramic coating 4, there is no risk of corrosion because the base 1 is covered with the resin layer 3, and the unevenness on the surface of the base 1 is flattened by the resin layer 3. Therefore, the surface of the ceramic coating 4 can be formed smoothly regardless of the roughness on the surface of the substrate 1.

[Effects of the Invention] As described above, the present invention has a three-layer structure consisting of a highly rigid base l, a ceramic coating 4 with excellent wear resistance and corrosion resistance, and a resin layer 3 interposed between the two. Therefore, it is possible to provide the spinning rotary disk A which is excellent in durability and economical efficiency as a whole.

That is, when metal is used for the base 1, a chemical agent that passes through the pinholes of the ceramic coating 4 is applied to the resin layer 3.
This prevents corrosion of the base 1.

On the other hand, when carbon fiber, glass fiber, etc. are used for the base body 1, the surface of the rotary disk A is coated with the ceramic coating 4 after applying the ceramic coating 4 in order to cover the a-lined surfaces of the fibers with the resin layer 3. Can be made smooth.

In summary, according to the present invention, a base material that requires rigidity and a surface material that requires wear resistance and corrosion resistance are formed separately from optimal materials that satisfy the respective conditions, and the two are organically bonded by a resin layer. No, that's ten.

Much more durable than conventional single-piece groove construction.

In addition, the rotary disk can be easily shifted, contributing to the reduction of driving force, and since the surface does not bulge even after long-term use, there is no need to worry about thread breakage, making it extremely useful.

[Brief explanation of the drawing]

The figures show one embodiment of the present invention, so FIG. 1 is a perspective view of the base, FIG. 2 is a perspective view of the base covered with a resin layer, and FIG. 3 is a longitudinal sectional view of the rotary disk. FIG. 4 is a partially enlarged view of FIG. 3. L...Base, 3...Resin layer, 4...Ceramic coating, A...Rotary disk. Special R4r applicant Yoshio Shin Oka Agent Patent attorney Takeshi Ito 131
i! Figure 2 Figure 8 Figure 4

Claims (1)

[Claims] A spinning device characterized by comprising a base made of a material with relatively high rigidity such as metal or carbon fiber, a resin layer formed on the surface of the base, and a ceramic coating applied to the surface of the resin layer. rotary disc.