CN104746230B - ceramic yarn wheel - Google Patents

Abstract

The invention relates to a ceramic yarn feeding wheel, which comprises an upper wheel cover, a lower wheel cover and a plurality of ceramic parts arranged between the upper wheel cover and the lower wheel cover; the upper wheel cover is provided with a central hole and a plurality of first combining parts arranged on the periphery of the upper wheel cover; the center of the lower wheel cover is provided with a through shaft hole and a plurality of second combining parts arranged on the periphery of the lower wheel cover; the upper and lower receiving parts of each ceramic piece correspond to the first combining part of the upper wheel cover and the second combining part of the lower wheel cover; the receiving parts at the two ends of each ceramic piece are combined with the combining parts of the upper wheel cover and the lower wheel cover to form a ceramic yarn feeding wheel; because the ceramic pieces are circular arc ceramic pieces with narrow inside and wide outside to form a circular yarn feeding circumferential surface, excellent jacquard or color-changing cloth can be woven, and the structure that each ceramic piece is wide outside and narrow inside can greatly improve the strength of the ceramic piece bearing radial stress, so that the yarn guiding operation of the ceramic yarn feeding wheel is smooth.

Description

ceramic yarn wheel

technical field

The present invention relates to a ceramic yarn feeding wheel, in particular to a kind of arc-shaped ceramic parts whose section is narrow inside and wide outside to provide yarn around the yarn feeding circumferential surface, and each ceramic part is wide outside and narrow inside. The structure of the arc-shaped outer peripheral surface can greatly increase the strength of the ceramic part to withstand radial stress, and the outer arc surface of the ceramic part is connected with the upper and lower inclined joint surfaces to form the yarn-in and yarn-out guide parts, so that the yarn can be automatically guided Yarn, so that the jacquard yarn guide operation of the ceramic yarn feeding wheel is smooth.

Background technique

Generally, the knitting yarn feeding and storing cylinder includes an upright cylindrical support body and a plurality of ceramic yarn guide pieces. The support body is provided with a plurality of installation grooves at a certain distance from each other, and the yarn guide pieces are inserted into the installation grooves. The metal rod type yarn winding body; the support body includes the upper cover and the lower cover sleeve splicing and is fixed with the ceramic yarn guide sheet to form a yarn storage tube.

The yarn storage drum still has the following shortcomings to be improved urgently when it is actually used:

1. Since the structure of the functional yarn varies greatly, when performing jacquard and color-changing weaving, functional yarns are often blended with traditional yarns according to market demand, and the yarn tension changes considerably due to jacquard and color-changing weaving. Frequently, when the yarn storage drum rotates rapidly, the yarn is easily broken due to the rod-type rotating tangential force of the yarn storage drum, causing trouble.

2. The ceramic yarn guide piece of the yarn storage drum is made of ceramic material, and the shape and size of the upper end and the lower end are different (the upper end is larger than the lower end), which leads to a high uniformity defect rate of the yarn guide piece fired products, resulting in increased production costs. question.

3. Furthermore, the middle part of the yarn guide sheet is the part with the largest amount of yarn storage, which is often unable to bear the radial stress and is easy to break when the yarn storage is in use.

Contents of the invention

The purpose of the present invention is to solve the above-mentioned shortcomings of the existing yarn storage drum, and provide a structure of a uniform arc-shaped ceramic piece with a narrow inside and a wide outside, which can increase the strength of the ceramic piece to withstand greater radial stress. The upper and lower ends of the piece are equipped with yarn-in and yarn-out guide parts, so that the yarn can automatically slide down and sequentially feed the yarn on the outer periphery of the yarn feeding wheel, and the outer periphery of the ceramic part is made into a smooth arc surface without any water chestnut. When jacquard and color-changing weaving are carried out rapidly, the yarn guiding operation of the ceramic yarn feeding wheel of the present invention can be made extremely smooth.

The technical means that the present invention adopts for reaching the above-mentioned purpose comprises an upper wheel cover, a lower wheel cover connected with the upper wheel cover and a plurality of groups of ceramic parts arranged between the upper wheel cover and the lower wheel cover; There is a central hole and a plurality of first joints arranged on the outer periphery of the upper wheel cover; the lower wheel cover is provided with a shaft passing hole and a plurality of second joints arranged on the outer periphery of the lower wheel cover; and on each of the ceramic parts, An upper and a lower receiving part are respectively provided at the lower ends to correspond to the first joint part of the upper wheel cover and the second joint part of the lower wheel cover. The outer sides of these ceramic parts are arc-shaped surfaces, so that the The ceramic parts together form a true circle yarn feeding circumferential surface; thereby the center hole of the upper wheel cover is combined with the shaft passing hole of the lower wheel cover, and the first joint part of the outer periphery of the upper wheel cover and the second joint of the outer periphery of the lower wheel cover The two joint parts are also respectively combined with the upper and lower receiving parts at the upper and lower ends of each of the ceramic parts to form a ceramic yarn sending wheel.

The cross-section of the ceramic parts is one of arc-shaped bottom trapezoid, triangle, sector, T-shape or curved arc.

The first joint part of the upper wheel cover is a downward protruding shaft, the second joint part of the lower wheel cover is an upward protruding shaft, and the upper and lower ends of the ceramic parts are received The part is the upper and lower joint holes.

The first joint part of the upper wheel cover is a downward recess, the second joint part of the lower wheel cover is an upward recess, and the upper and lower receiving parts of the upper and lower ends of the ceramic parts are Upper and lower convex parts.

The upper wheel cover further includes an upper step portion and a lower step portion, the bottom surface of the upper step portion is equidistantly arranged with a plurality of upper engagement grooves in a ring shape, and the first joint portion is arranged in the upper engagement groove; the lower wheel cover It further includes a first step portion, a second step portion, and a third step portion, the third step portion is passed through the center hole of the upper wheel cover, and the first step portion corresponds to the upper engaging groove and the first step portion. Each joint part is provided with a plurality of lower joint grooves and a second joint part.

The two ends of the ceramic parts correspond to the upper joint groove of the upper wheel cover and the lower joint groove of the lower wheel cover respectively to have an upper joint surface and a lower joint surface.

An upper bearing seat is arranged above the central hole of the upper wheel cover, and the upper bearing seat is used for embedding of the upper bearing, and a lower bearing seat is arranged below the shaft passing hole of the lower wheel cover, and the lower bearing seat is used for embedding of the lower bearing.

The center of the upper bearing and the lower bearing is pierced with a metal axle, and the lower end of the metal axle is locked and integrated with the lower wheel cover by a gasket and a screw fixing element. The metal axle can drive the upper wheel cover, the ceramic part and the lower wheel The cover rotates synchronously.

The third step and the second step of the lower wheel cover are provided with a longitudinal notch.

The ceramic yarn feeding wheel further includes a conductive ring, the conductive ring has a hook portion and an extension section, and the extension section is embedded in the longitudinal gap of the lower wheel cover.

The upper and lower joint surfaces of the two ends of the ceramic part correspond to the upper joint groove of the upper wheel cover and the lower joint groove of the lower wheel cover to be set as arc-shaped bottom trapezoidal, triangular, fan-shaped, T-shaped or curved with narrow inside and wide outside. One of the arcs.

The upper ring of the second step of the lower wheel cover is provided with a plurality of protrusions, and the bottom of the lower step of the upper wheel cover is provided with several concave holes corresponding to the protrusions.

Another technical means adopted by the present invention to achieve the above-mentioned purpose includes an upper wheel cover, a lower wheel cover connected with the upper wheel cover and a plurality of ceramic parts arranged between the upper wheel cover and the lower wheel cover; The cover is provided with a central hole and most of the first joints located on the outer circumference of the upper wheel cover; the lower wheel cover is provided with a shaft passing hole and most of the second joints are provided on the outer circumference of the lower wheel cover; each of the ceramic parts , Lower two ends are respectively provided with an upper and lower receiving part to correspond to the first joint part of the upper wheel cover and the second joint part of the lower wheel cover. The outer circumference of the ceramic part is set as a curved surface, and each curved surface Arranged circularly to form a true circle, the cross-section of these ceramic parts is one of trapezoidal, triangular, fan-shaped, T-shaped or curved arc-shaped.

The curved surface of each of the ceramic parts has a yarn-in guide part and a yarn-out guide part, so that the yarn can be guided smoothly.

Description of drawings

Fig. 1 is the perspective view of the ceramic yarn feeding wheel of the first embodiment of the present invention;

Fig. 2 is a three-dimensional exploded view (top view) of the components of Fig. 1;

Fig. 3 is a three-dimensional exploded view (looking up) of the components of Fig. 1;

Fig. 4 is the longitudinal sectional view of Fig. 1;

Fig. 5 is a vertical three-dimensional sectional view of Fig. 1;

Fig. 6 is a three-dimensional cross-sectional view of ceramic parts arranged in a ring;

Figure 7 is a cross-sectional plan view of Figure 1;

Fig. 8 is another three-dimensional sectional view of the cross-section of ceramic parts arranged in a ring;

Fig. 9 is a three-dimensional exploded view of the ceramic yarn feeding wheel according to the second embodiment of the present invention;

Fig. 10 is a longitudinal sectional view of Fig. 9;

Fig. 11 is an exploded perspective view of the ceramic yarn feeding wheel according to the third embodiment of the present invention.

detailed description

The features and technical contents of the relevant patent applications of the present invention will be clearly presented in the following detailed description of preferred embodiments with reference to the drawings.

Referring to Fig. 1 to Fig. 7, it is the first embodiment of the ceramic yarn feeding wheel 10 of the present invention, which includes an upper wheel cover 1, a lower wheel cover 2 connected with the upper wheel cover 1 and a plurality of groups arranged on the upper wheel cover 1 and the lower wheel cover 1. Ceramic part 3 between wheel covers 2.

Referring to Fig. 2 and Fig. 3, the upper wheel cover 1 is provided with a central hole 11, which includes an upper step portion 12 and a lower step portion 13, and the bottom surface of the upper step portion 12 has a plurality of upper engaging grooves 121 and a plurality of The first combining part 122 . An upper bearing seat 111 is arranged above the center hole 11 of the upper wheel cover 1 , and the upper bearing seat 111 is used for the upper bearing 14 to be embedded.

The lower wheel cover 2 is provided with a first step portion 21 , a second step portion 22 , a third step portion 23 and a shaft hole 24 , and the third step portion 23 is passed through the center hole of the upper wheel cover 11 11 , the first step portion 21 is provided with a plurality of lower engaging grooves 211 and second engaging portions 212 corresponding to the upper engaging groove 121 and the first engaging portion 122 . The third step portion 23 and the second step portion 22 of the lower wheel cover 2 define a longitudinal notch 231 .

A lower bearing seat 241 is arranged below the shaft passing hole 24 of the lower wheel cover 2, and the lower bearing seat 241 is embedded for the lower bearing 25. The center of the upper bearing 14 and the lower bearing 25 is provided with a metal axle 15, and the lower end of the metal axle 15 is locked and integrated with the lower wheel cover 2 by means of a gasket 151 and a screw fixing element 152. The metal axle 15 can drive the upper wheel cover 1. The ceramic part 3 and the lower wheel cover 2 rotate synchronously. The upper portion of the second step portion 22 of the lower wheel cover 2 is provided with a plurality of protrusions 221 , and the bottom of the lower step portion 13 of the upper wheel cover 1 is provided with a plurality of concave holes 131 corresponding to the protrusions 221 .

Referring to Fig. 2, Fig. 3 and Fig. 6, the two ends of the ceramic part 3 correspond to the upper joint groove 121 of the upper wheel cover 1 and the lower joint groove 211 of the lower wheel cover 2 to be provided with an upper joint surface 31 and a lower joint surface 32. The lower joint surfaces 31 and 32 are respectively provided with upper and lower receiving parts corresponding to the first joint part 122 of the upper wheel cover 1 and the second joint part 212 of the lower wheel cover 2 . The upper and lower receiving portions in the first embodiment are upper and lower engaging holes 33 for correspondingly engaging with the first engaging portion 122 and the second engaging portion 212 .

The upper and lower joint surfaces 31 , 32 at both ends of the ceramic part 3 correspond to the upper joint groove 121 of the upper wheel cover 1 and the lower joint groove 211 of the lower wheel cover 2 to be fan-shaped cross-sections that are narrow inside and wide outside. The outer periphery of the ceramic part 3 is set as a wider curved surface 34, and each curved surface 34 is arranged in a circle to form a true circle, and each curved surface 34 has a yarn-entry guide part 341 and a yarn-out guide part 342, so that the yarn can be smoothly guided.

It should be noted that the upper joint groove 121 and the lower joint groove 211 can be omitted if necessary, and only the first joint part 122 and the second joint part 212 can be used. Furthermore, the first joint portion 122 of the upper wheel cover 1 can be changed into a downward recess, the second joint portion 212 of the lower wheel cover 2 can be changed into an upward recess, and the upper and lower two sides of the ceramic parts 3 The upper and lower receiving parts 33 of the end can be changed into upper and lower convex parts, which is feasible, and it is explained hereby.

The ceramic yarn feeding wheel 10 of the present invention further includes a conductive ring 4 having a hook portion 41 and an extension portion 42. The extension portion 42 is correspondingly inserted into the longitudinal notch 231 of the lower wheel cover 2, and the hook portion 41 abuts against the metal wheel shaft 15. The outer diameter is so that the static electricity generated by the ceramic yarn feeding wheel 10 is connected to the ground. Of course, if the ceramic yarn feeding wheel 10 itself has the function of eliminating static electricity, then the conductive ring 4 can be omitted.

Referring to Fig. 4 and Fig. 5, to assemble and implement the ceramic yarn feeding wheel 10 of the present invention, first, the extension section 42 of the conductive ring 4 is correspondingly embedded in the longitudinal gap 231 of the lower wheel cover 2, and the conductive ring 4 is set in the lower wheel cover 2 Then, insert the protruding piece 221 above the second step portion 22 of the lower wheel cover 2 into the concave hole 131 of the lower step portion 13 of the upper wheel cover 1 correspondingly. Continue to insert the upper joint surface 31 and the lower joint surface 32 at both ends of the ceramic part 3 into the upper joint groove 121 of the upper wheel cover 1 and the lower joint groove 211 of the lower wheel cover 2, and the first joint part 122 of the upper wheel cover 1 and The second joint portion 212 of the lower wheel cover 2 is correspondingly inserted into the joint hole 33 of each ceramic component 3 .

Finally, the upper bearing 14 and the lower bearing 25 are respectively fixed at the center of the upper wheel cover 1 and the lower wheel cover 2, and the center of the upper bearing 14 and the lower bearing 25 is pierced with a metal wheel shaft 15, and the lower end of the metal wheel shaft 15 is borrowed by a gasket 151 And the screw fixing element 152 is locked and integrated with the lower wheel cover 2, and the metal wheel shaft 15 can drive the upper wheel cover 1, the ceramic part 3 and the lower wheel cover 2 to rotate synchronously.

The ceramic part 3, the upper wheel cover 1 or the lower wheel cover 2 of the ceramic yarn feeding wheel 10 of the present invention has conductivity, and the upper wheel cover 1 or the lower wheel cover 2 is made of conductive metal or conductive rubber or plastic material. When the metal wheel shaft 15 of the ceramic yarn feeding wheel 10 of the present invention drives the upper wheel cover 1, the ceramic part 3 and the lower wheel cover 2 to rotate synchronously, the outer diameter of the metal wheel shaft 15 is in contact with the hook portion 41 of the conductive ring 4 to achieve static electricity. grounding purpose.

Referring to Fig. 5, the ceramic part 3 of the ceramic yarn feeding wheel 10 of the present invention is not only easy to manufacture, but also easy to control the manufacturing accuracy, and each ceramic part 3 can also be set as a fan shape with narrow inside and wide outside as shown in Fig. 7 and Fig. 8 Or a trapezoid with an arc-shaped bottom can increase the strength of the ceramic part 3 to withstand radial stress.

The outer circumference of each ceramic part 3 of the ceramic yarn feeding wheel 10 of the present invention is set as a curved surface 34. When most ceramic parts 3 are arranged in a ring and fixed between the lower wheel cover 2 and the upper wheel cover 1, each curved surface 34 can be Form a true circle (referring to Fig. 7, Fig. 8), this true circle wheel surface that is made up of most curved surfaces 34 makes the wheel surface of the yarn feeding wheel of the present invention smooth and smooth, and no dynamic water chestnut tangential force is produced, so the ceramics of the present invention When the yarn feeding wheel 10 carries out jacquard or color-changing yarn feeding, it is extremely smooth and there is no problem of yarn breakage. By comparing the outer peripheral curved surface 34 of each ceramic part 3 in Fig. 7 and Fig. 8, it can be seen that the outer peripheral curved surface 34 of the ceramic part 3 in Fig. 8 is made into an arc with a slightly smaller curvature than that in Fig. 7 in a specific embodiment. Specifically, the cross-section of the ceramic part 3 in Figure 7 is closer to a triangle or a trapezoid with an arc-shaped bottom, while the cross-section of the ceramic part 3 in Figure 8 is closer to a fan shape. It is almost the same as the shape. In the yarn feeding process of the special yarn, the ceramic part 3 in Fig. 8 is slightly better than that in Fig. 7, and there is no difference in the rest, so hereby explain.

Refer to Fig. 9 and Fig. 10 for the second embodiment of the present invention. In this embodiment, the main components of the ceramic yarn feeding wheel 10A are the same as those of the first embodiment, and all of them are marked with the same symbols and their descriptions are omitted. The wheel cover 1 and the lower wheel cover 2 are respectively provided with arc-shaped grooves 122A, 211A, and the ceramic part 3A is provided with curved-arc-shaped upper and lower grooves corresponding to the arc-shaped grooves 122A, 211A of the upper wheel cover 1 and the lower wheel cover 2. The receiving part, the upper and lower receiving parts in the second embodiment are the upper and lower convex parts 33A, and the upper and lower convex parts 33A are respectively embedded in the arc-shaped concaves of the upper wheel cover 1 and the lower wheel cover 2 Slots 122A, 211A.

Referring to FIG. 11 is a third embodiment of the present invention. In the present embodiment, the main components of the ceramic yarn feeding wheel 10B are the same as those of the second embodiment, all of which are marked with the same symbols and their descriptions are omitted. The only difference is that the upper wheel cover 1 and the lower wheel cover 2 are provided with T-shaped recesses Groove 122B, 211B, the T-shaped groove 122B, 211B of this ceramic part 3B corresponding upper wheel cover 1 and lower wheel cover 2 is provided with T-shaped upper and lower convex parts 33B, so that the upper and lower convex parts 33B correspond to Insert the T-shaped grooves 122B and 211B of the upper wheel cover 1 and the lower wheel cover 2 .

Through the narration of the above embodiment, it can be known that this case does have the place of following effect enhancement:

1. Simplification of components: the component components of the ceramic yarn feeding wheel of the present invention are simplified, and the manufacturing process of each ceramic part saves man-hours very much. The arc shape has good resistance to side stress strength, and the ceramic part can bear the radial stress during yarn feeding without setting up other supporting parts.

2. There is no worry about breakage of the ceramic parts: the ceramic parts with narrow inner and wide outer arc surfaces have no worry about breakage. The breakage of ceramic parts affects the yarn feeding operation.

3. It has the function of smooth yarn entry and exit: each is set as a curved arc-shaped ceramic piece with a narrow inside and a wide outside, and a yarn gap is set at the joint between the curved surface with a wider outer circumference and the upper and lower joint surfaces. Yarn-in and yarn-out guide section, the yarn-in and yarn-out guide section makes the yarn guide operation smooth, and makes the jacquard, color changing and yarn storage functions completely flawless, and then achieves the function of smooth yarn feeding.

4. The best jacquard and irregular yarn feeding wheel: the outer circumference of each arc-shaped ceramic part is a true circular arc surface, which makes the circumference of the yarn feeding wheel smooth without any water chestnut and eliminates the possibility of yarn breakage. It is the best jacquard, The innovation of discoloration and irregular yarn feeding wheel (complete without apron, no need to replace the apron).

5. Never worry about yarn breakage: the center of the curved arc surface of each ceramic part can be made into a slightly higher arc-shaped outer periphery and slightly smaller arc-shaped structure than the two sides in a specific embodiment. The yarn feeding operation is extremely smooth and smooth, and there is no worry of yarn breakage.

6. It has the effect of eliminating static electricity: a conductive ring is interposed between the upper wheel cover and the lower wheel cover, and the static electricity that may occur in the ceramic yarn feeding wheel of the present invention is passed to the ground through the contact of the hook part of the conductive ring with the metal wheel shaft. to eliminate static electricity. When the upper wheel cover or the lower wheel cover is made of conductive material, or made of conductive metal or conductive rubber or plastic material, the function of eliminating static electricity can also be achieved.

To sum up, the ceramic yarn feeding wheel of the present invention is arranged in a circular arrangement of ceramic pieces to provide yarn winding, and the outer peripheral arc-shaped ceramic pieces with narrow inside and wide outside can increase the bearing strength of radial mechanical stress, and each ceramic piece The outer arc-shaped surface of the ceramic yarn can automatically slide down and feed the yarn on the periphery of the ceramic, so that the yarn guide operation of the ceramic yarn feeding wheel is smooth.

The above is only a preferred embodiment of the present invention, and should not limit the scope of the present invention, that is, all simple equivalent changes and modifications made according to the patent scope of the present invention and the description of the invention are all Still belong to the scope that the patent of the present invention covers.

Claims (15)

1. A ceramic yarn feeding wheel, characterized in that it comprises an upper wheel cover (1), a lower wheel cover (2) connected with the upper wheel cover (1) and a plurality of groups arranged on the upper wheel cover (1) and The ceramic part (3) between the lower wheel cover (2); The upper wheel cover (1) is provided with a central hole (11) and a plurality of first joints (122) arranged on the outer periphery of the upper wheel cover (1); The lower wheel cover (2) is provided with a shaft passing hole (24) and a plurality of second joints (212) arranged on the outer periphery of the lower wheel cover (2); The upper and lower ends of each of these ceramic parts (3) are respectively provided with an upper and lower receiving portion (33) to correspond to the first joint portion (122) of the upper wheel cover (1) and the lower wheel cover (2). ) second junction (212); Thereby the center hole (11) of the upper wheel cover (1) is combined with the shaft passing hole (24) of the lower wheel cover (2), and the outer peripheral first joint portion (122) of the upper wheel cover (1) and the The second joint part (212) of the outer periphery of the lower wheel cover (2) is also combined with the upper and lower receiving parts of the upper and lower ends of each of the ceramic parts (3) respectively to form a ceramic yarn sending wheel (10). 2. The ceramic yarn feeding wheel according to claim 1, characterized in that: the cross section of the ceramic pieces (3) is one of arc-shaped bottom trapezoidal, triangular, fan-shaped, T-shaped or curved arc-shaped. 3. The ceramic yarn feeding wheel according to claim 1, characterized in that: the first joint portion (122) of the upper wheel cover (1) is a downward protruding shaft, and the second joint portion (122) of the lower wheel cover (2) The joint part (212) is an upward protruding shaft, and the upper and lower receiving parts of the upper and lower ends of the ceramic parts (3) are upper and lower joint holes (33). 4. The ceramic yarn feeding wheel according to claim 1, characterized in that: the first joint portion (122) of the upper wheel cover (1) is a downward concave portion, and the second joint portion of the lower wheel cover (2) The part (212) is an upward concave part, and the upper and lower receiving parts of the upper and lower ends of the ceramic parts (3) are upper and lower convex parts (33A). 5. The ceramic yarn feeding wheel according to claim 1 or 2, characterized in that: the outer sides of the ceramic parts (3) are arc-shaped surfaces, so that the ceramic parts together form a true circular yarn feeding circumferential surface . 6. The ceramic yarn feeding wheel according to claim 1, characterized in that: the upper wheel cover (1) further comprises an upper step portion (12) and a lower step portion (13), the bottom surface of the upper step portion (12) A plurality of upper engagement grooves (121) are arranged in a circular arrangement at equal intervals, and the first joint portion (122) is arranged in the upper engagement grooves (121); the lower wheel cover (2) further includes a first step portion (21) , a second step portion (22), a third step portion (23), the third step portion (23) is passed through the central hole (11) of the upper wheel cover (1), the first step portion (21) A plurality of lower engaging grooves (211) and second engaging portions (212) are respectively provided corresponding to the upper engaging groove (121) and the first engaging portion (122). 7. The ceramic yarn feeding wheel according to claim 6, characterized in that: the two ends of the ceramic parts (3) correspond to the upper joint groove (121) of the upper wheel cover (1) and the lower joint groove (121) of the lower wheel cover (2). The engaging grooves (211) are respectively provided with an upper engaging surface (31) and a lower engaging surface (32). 8. The ceramic yarn feeding wheel according to claim 1, characterized in that: an upper bearing seat (111) is provided above the center hole (11) of the upper wheel cover (1), and the upper bearing seat (111) is provided for the upper Bearing (14) embedding is fixed, and bearing seat (241) is established below the piercing hole (24) of this lower wheel cover (2), and this lower bearing seat (241) is embedded for lower bearing (25). 9. The ceramic yarn feeding wheel according to claim 8, characterized in that: a metal axle (15) is passed through the center of the upper bearing (14) and the lower bearing (25), and a pad is used at the lower end of the metal axle (15) The sheet (151) and the screw fixing element (152) are locked and integrated with the lower wheel cover (2), and the metal axle (15) can drive the upper wheel cover (1), the ceramic part (3) and the lower wheel cover (2) Synchronized rotation. 10. The ceramic yarn feeding wheel according to claim 6, characterized in that: the third step (23) and the second step (22) of the lower wheel cover (2) are provided with a longitudinal notch (231). 11. The ceramic yarn feeding wheel according to claim 10, characterized in that: the ceramic yarn feeding wheel further comprises a conductive ring (4), and the conductive ring (4) has a hook (41) and an extension ( 42), the extension (42) is embedded in the longitudinal notch (231) of the lower wheel cover (2). 12. The ceramic yarn feeding wheel according to claim 6 or 7, characterized in that: the upper and lower joint surfaces (31, 32) at both ends of the ceramic piece (3) correspond to the upper joint groove ( 121) and the lower engagement groove (211) of the lower wheel cover (2) is set as one of narrow, wide arc bottom trapezoid, triangle, sector, T-shape or curved arc. 13. The ceramic yarn feeding wheel according to claim 6, characterized in that: the upper ring of the second step portion (22) of the lower wheel cover (2) is provided with a plurality of protrusions (221), and the upper wheel cover (1 ) is provided with several concave holes (131) on the bottom face of the lower step portion (13) of the corresponding convex piece (221). 14. The ceramic yarn feeding wheel according to claim 1 or 2, characterized in that: the outer circumference of the ceramic piece (3) is set as a curved surface (34), and each curved surface (34) is arranged in a ring to form a true round. 15. The ceramic yarn feeding wheel according to claim 14, characterized in that: the curved surface (34) of each ceramic piece (3) has a yarn-entry guide part (341) and a yarn-out guide part (342), so that yarn can reach guide yarn smoothly.