CN113084601A

CN113084601A - Intelligent polishing system for stainless steel tableware

Info

Publication number: CN113084601A
Application number: CN202110448908.9A
Authority: CN
Inventors: 陈泰都
Original assignee: Individual
Current assignee: Guangdong Xiangshuncan Kitchen Tools Co ltd
Priority date: 2021-04-25
Filing date: 2021-04-25
Publication date: 2021-07-09
Anticipated expiration: 2041-04-25
Also published as: CN113084601B

Abstract

The invention discloses an intelligent polishing system for stainless steel tableware, which belongs to the field of tableware polishing systems and comprises a polishing ball, a magnetic polishing machine, a storage cavity, a polishing ball, a polishing head and a polishing head, wherein compared with a traditional magnetic needle, the polishing ball has better wear resistance, and the polishing head can quickly set the optimal polishing parameters of the magnetic polishing machine through the Internet of things, the loss of the polished ball is reduced.

Description

Intelligent polishing system for stainless steel tableware

Technical Field

The invention relates to the field of tableware polishing systems, in particular to an intelligent polishing system for stainless steel tableware.

Background

The magnetic polishing machine is a new product which is reformed relative to the defects of the traditional deburring machine, has no dead angle in magnetic grinding/magnetic polishing, and completely grinds all parts; precision small-size special-shaped spare part, irregular shape part: removing burrs (rough edges and burrs), polishing, cleaning, chamfering, enhancing surface hardness and the like; precisely grinding irregular parts such as holes, tubes, cracks, dead corners, right angles, threads and the like of the metal parts with the minimum dimension phi of 0.2mm to 3 mm; the workpieces are not collided with each other, and the product is not deformed at all, the precision is not influenced at all, and the surface is not damaged at all; the machine table has strong operation stability and high efficiency; the grinding speed is high, the average one-time grinding time is about 3 minutes to about 15 minutes, the replacement work is fast, and the grinding can be carried out during the operation of a machine; the machine body is waterproof and moistureproof, the operation is simple and safe, no technical requirements exist, and one person can operate multiple machines.

The magnetic polishing machine utilizes the uniform magnetic field distribution to generate a magnetic induction effect, so that the magnetic steel needle and a workpiece are ground in all directions and at multiple angles, and the effects of quickly removing dead corners, removing burrs and cutting edges, cleaning the workpiece and the like are achieved. Especially, for workpieces with complex shapes, porous cracks, internal and external threads and the like, the special effect can be more shown: the surface of the workpiece is not damaged and the precision of the workpiece is not influenced.

Compared with a stainless steel component, the tableware has the characteristics of low thickness, irregular shape and more dead angles, and the traditional grinding type polishing is difficult to carry out comprehensive polishing on the stainless steel tableware, so that the magnetic polishing machine is the best polishing machine for the stainless steel tableware.

Disclosure of Invention

1. Technical problem to be solved

Aiming at the problems in the prior art, the invention aims to provide an intelligent polishing system for stainless steel tableware, which can monitor a magnetic polishing machine, ensure the polishing effect of the magnetic polishing machine and hardly influence the polishing work of the stainless steel tableware.

2. Technical scheme

In order to solve the above problems, the present invention adopts the following technical solutions.

An intelligent polishing system for stainless steel tableware comprises a magnetic polishing machine, wherein a control terminal is loaded in the magnetic polishing machine, the control terminal is in signal connection with a processing terminal, and the processing terminal is in signal connection with an Internet of things cloud;

an intelligent polishing device for stainless steel tableware, wherein the magnetic polishing machine comprises a polishing machine body, the upper end of the polishing machine body is fixedly connected with an electromagnetic generating device, a limiting groove is formed in the upper side of the polishing machine body, the limiting groove is positioned on the outer side of the electromagnetic generating device, a polishing tank is placed on the upper side of the polishing machine body, a limiting ring matched with the limiting groove is fixedly connected to the lower end of the polishing tank, a sealing rubber pad matched with the polishing tank is placed at the upper end of the polishing tank, polishing liquid and polishing balls are placed in the polishing tank, the polishing balls are suspended in the polishing liquid, the polishing balls comprise magnetic rubber balls, polishing magnetic needles are fixedly connected to the surfaces of the magnetic rubber balls, one ends, close to the magnetic rubber balls, of the polishing magnetic rubber balls penetrate through the magnetic rubber balls and extend into the magnetic rubber balls, and a protective net is arranged outside the magnetic rubber balls, the protecting net has the trend of inward shrink all the time, the spheroidal one end of magnetic rubber is kept away from to the polishing magnetism needle runs through the protecting net, the spheroidal one end fixedly connected with protecting tube layer of magnetic rubber is kept away from to the protecting net, the polishing magnetism needle is buried underground with the protecting tube in situ, can realize monitoring magnetic polishing machine, ensures magnetic polishing machine's polishing effect, is difficult for influencing the polishing work of stainless steel tableware.

Further, be connected with sealed cushion between polishing jar and the sealed cowling, sealed cushion and sealed cowling fixed connection increase the sealed effect between polishing jar and the sealed cowling, are difficult for causing the polishing solution to leak at the polishing in-process, are difficult for influencing magnetic force polishing machine's operational environment.

Furthermore, the end, far away from the magnetic rubber ball body, of the polishing magnetic needle is round-head-shaped, the polishing magnetic needle is made of a material with hardness higher than that of stainless steel tableware, loss in the polishing process of the polishing magnetic needle is reduced, and the service life of the polishing ball is prolonged.

Further, it has the storage chamber to chisel in the polishing magnetism needle, the storage chamber is located the one end that the polishing magnetism needle kept away from the magnetic rubber spheroid, be filled with a plurality of polishing sand in the storage chamber, the polishing sand chooses high rigidity magnetism sand for use to make, and excessive wearing and tearing appear at the polishing magnetism needle, when polishing effect worsens, the storage chamber can be opened, and the polishing sand is released under electromagnetism generating device's effect, is directional motion and polishes the stainless steel tableware in the polishing solution, compensates the reduction of the polishing effect that causes of the excessive loss of polishing ball.

Furthermore, the red coating is coated outside the polishing sand, so that workers can find the leakage of the polishing sand in time and replace the polishing ball in time.

Further, a plurality of barbs of fixedly connected with on the outer wall of polishing magnetism needle, the barb be for the one end that is close to the guard net with polishing magnetism needle, increases the joint strength between protective tube layer and the polishing magnetism needle, makes between polishing magnetism needle and the protective tube layer difficult separation, is difficult for making the protective tube layer take place excessive deformation under the external action, is difficult for making the polishing magnetism needle expose.

Furthermore, the protective tube layer is far away from the magnetic rubber ball body and comprises a three-dimensional rubber shell, the three-dimensional rubber shell is in a three-dimensional spiral shape, the three-dimensional rubber shells are adjacent to each other and are wound together, the capacity of the protective tube layer for keeping the self space structure is increased, and the protective tube layer is not prone to excessive deformation under the action of external force.

Furthermore, an elastic cavity is formed in the three-dimensional rubber shell in a chiseled mode, the elasticity of the three-dimensional rubber shell is improved, in the process that the polishing ball collides, impact generated by collision can be absorbed through deformation of the three-dimensional rubber shell, and impact loss is reduced.

Furthermore, the elastic cavity is filled with elastic fiber clusters, the elastic fiber clusters are of a three-dimensional structure in the elastic cavity, the strength of the three-dimensional rubber shell is improved, the three-dimensional rubber shell can be quickly restored to a prototype after elastic deformation occurs, and the protection effect of the three-dimensional rubber shell is not easily influenced.

Furthermore, one end of each elastic fiber cluster penetrates through the three-dimensional rubber shell and extends to the outer side of the three-dimensional rubber shell, and the elastic fiber clusters on the outer surfaces of the adjacent three-dimensional rubber shells are mutually wound together, so that the connection strength between the adjacent three-dimensional rubber shells can be effectively increased, and the three-dimensional rubber shells can be favorably kept in self spatial configuration.

3. Advantageous effects

Compared with the prior art, the invention has the advantages that:

compared with the traditional magnetic needle, the polishing ball has better wear resistance, and meanwhile, the staff can quickly set the optimal polishing parameters of the magnetic polishing machine through the Internet of things so as to achieve the optimal polishing effect, so that the phenomenon that the surface of the stainless steel tableware is not polished thoroughly is avoided, and the phenomenon that the normal use is influenced due to too large self loss caused by the excessive surface polishing of the stainless steel tableware is avoided.

Meanwhile, the polishing result can be uploaded to the cloud end of the Internet of things through the processing terminal by a worker for storage, when the polishing effect of the magnetic polishing machine is incomplete, the phenomenon that the polishing ball is excessively worn is described, the polishing ball needs to be replaced, the magnetic polishing machine can be monitored, the polishing effect of the magnetic polishing machine is ensured, and the polishing work of the stainless steel tableware is not easily influenced.

Under the condition that excessive abrasion occurs to the polishing ball, polishing sand stored in the storage cavity can be released, insufficient polishing caused by excessive abrasion of the polishing ball is made up, meanwhile, workers are reminded to timely replace the polishing ball, and finally, through the structural design of the three-dimensional rubber shell and the elastic fiber cluster, the protection effect on the polishing magnetic needle is increased, so that the polishing magnetic needle is not prone to excessive self-abrasion, and the loss of the polishing ball is reduced.

Drawings

FIG. 1 is a schematic diagram of the main structure of the intelligent polishing system for stainless steel tableware according to the present invention;

FIG. 2 is a schematic view of the main structure of the magnetic polisher of the present invention;

FIG. 3 is an exploded view of the main structure of the magnetic polisher of the present invention;

FIG. 4 is a schematic sectional front view of the magnetic polisher of the present invention;

FIG. 5 is a schematic structural view of the magnetic polishing ball of the present invention;

FIG. 6 is a schematic view of the structure at the surface of the magnetic polishing ball of the present invention;

FIG. 7 is a schematic view of the structure of the elastic hose of the present invention;

fig. 8 is a schematic sectional structure view of the elastic hose of the present invention.

The reference numbers in the figures illustrate:

1 magnetic force burnishing machine, 2 control terminal, 3 processing terminal, 4 thing networking high in the clouds, 5 burnishing machine main parts, 6 electromagnetism generating device, 7 spacing grooves, 8 polishing jars, 9 sealed cowlings, 10 sealed cushions, 11 polishing solution, 12 polishing balls, 1201 magnetism rubber sphere, 1202 polishing magnetism needle, 1203 protection net, 1204 protective tube layer, 1205 barb, 1206 storage chamber, 1207 polishing sand, 13 three-dimensional shell glues, 14 elastic fiber cluster, 15 elasticity cavitys.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention; it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work are within the scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "sleeved/connected," "connected," and the like are to be construed broadly, e.g., "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; the connection can be direct connection or indirect connection through an intermediate medium, and can be communication inside the model adapting element. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example 1:

referring to fig. 1, the intelligent polishing system for stainless steel tableware comprises a magnetic polishing machine 1, wherein a control terminal 2 is mounted in the magnetic polishing machine 1, the control terminal 2 is in signal connection with a processing terminal 3, and the processing terminal 3 is in signal connection with an internet of things cloud 4;

referring to fig. 2-6, an intelligent polishing device for stainless steel tableware, a magnetic polisher 1 includes a polisher body 5, an electromagnetic generating device 6 is fixedly connected to an upper end of the polisher body 5, a limiting groove 7 is cut on an upper side of the polisher body 5, the limiting groove 7 is located on an outer side of the electromagnetic generating device 6, a polishing tank 8 is placed on the upper side of the polisher body 5, a limiting ring matched with the limiting groove 7 is fixedly connected to a lower end of the polishing tank 8, a sealing rubber pad 10 matched with the polishing tank 8 is placed on an upper end of the polishing tank 8, a polishing liquid 11 and a polishing ball 12 are placed in the polishing tank 8, the polishing ball 12 is suspended in the polishing liquid 11, the polishing ball 12 includes a magnetic rubber ball 1201, a polishing magnetic needle 1201 is fixedly connected to a surface of the magnetic rubber ball 1201, one end of the polishing needle 1202 close to the magnetic rubber ball 1201 penetrates through the magnetic rubber ball and extends into the magnetic rubber, a protection net 1203 is arranged on the outer side of the magnetic rubber ball 1201 in a closed loop mode, the protection net 1203 always has an inward contraction tendency, one end, far away from the magnetic rubber ball 1201, of the polishing magnetic needle 1202 penetrates through the protection net 1203, one end, far away from the magnetic rubber ball 1201, of the protection net 1203 is fixedly connected with a protection tube layer 1204, and the polishing magnetic needle 1202 is buried in the protection tube layer 1204.

In the scheme, the electromagnetic generating device 6 can generate a uniform magnetic field under the control of the control terminal 2 in the normal working process, under the action of the uniform magnetic field, the polishing balls 12 made of magnetic materials can directionally move in the polishing liquid 11 under the action of the uniform magnetic field generated by the electromagnetic generating device 6, and the polishing balls 12 can collide with the stainless steel tableware to be polished placed in the polishing liquid 11 in the moving process and polish the surface of the stainless steel tableware.

Compare in traditional magnetic pin, the polishing ball 12 of this scheme has better wearability, the magnetic pin is carrying out the in-process of magnetism polishing, can take place the autogenous grinding, increase the loss of self, and polishing ball 12 is at the in-process of self collision, under the protection of protection pipe layer 1204, adjacent protection net 1203 can not directly collide, reduce the loss of self by a wide margin, and carry out the in-process of magnetic force polishing to stainless steel tableware at this scheme of utilization, the staff can be according to the quantity and the type of the stainless steel tableware that the claim will polish, from thing networking high in the clouds 4 upload and download corresponding polishing data, include but not extremely limit to: the working power of the magnetic polisher 1, the working time, the usage amounts of the polishing liquid 11 and the polishing balls 12 and the like are reduced, so that the optimal polishing effect is achieved, the phenomenon that the surface of stainless steel tableware is not polished completely is avoided, the phenomenon that the normal use of the tableware is influenced due to excessive self loss caused by excessive polishing of the surface of the stainless steel tableware is not prone to occurring, meanwhile, a worker can upload polishing results to the cloud end 4 of the Internet of things through the processing terminal 3 for storage, when the polishing effects of the magnetic polisher 1 are not polished completely, the phenomenon that the polishing balls 12 are worn excessively is described, the polishing balls 12 need to be replaced, the magnetic polisher can be monitored, the polishing effect of the magnetic polisher is ensured, and the polishing work of the stainless steel tableware is not prone to being influenced.

Be connected with sealed cushion 10 between polishing jar 8 and the sealed cowling 9, sealed cushion 10 and sealed cowling 9 fixed connection increase the sealed effect between polishing jar 8 and the sealed cowling 9, are difficult for causing polishing solution 11 to leak in the polishing process, are difficult for influencing magnetic force polishing machine 1's operational environment.

Referring to fig. 5-6, the end of the polishing magnetic needle 1202 away from the magnetic rubber ball 1201 is round-headed, the polishing magnetic needle 1202 is made of a material with a hardness higher than that of the stainless steel tableware, so as to reduce the loss of the polishing magnetic needle 1202 during the polishing process and prolong the service life of the polishing ball 12, a storage chamber 1206 is drilled in the polishing magnetic needle 1202, the storage chamber 1206 is located at the end of the polishing magnetic needle 1202 away from the magnetic rubber ball 1201, a plurality of polishing sands 1207 are filled in the storage chamber 1206, the polishing sands 1207 are made of high-hardness magnetic sands, when the polishing magnetic needle 1202 is excessively worn and the polishing effect is poor, the storage chamber 1206 is opened, the polishing sands 1207 are released under the action of the electromagnetic generating device 6, the stainless steel tableware is polished by directional motion in the polishing liquid 11, the reduction of the polishing effect caused by the excessive loss of the polishing ball 12 is compensated, and the polishing sands 1207 is coated with red paint, make things convenient for the staff in time to discover the leakage of polishing sand 1207, in time change polishing ball 12, it is unusual, a plurality of polishing balls 12 are compiled only a set of, when polishing sand 1207 appears leaking in a set of polishing ball 12 working process, most polishing balls 12 all have a large amount of phenomenon of wearing and tearing, so need to carry out the collective change to polishing ball 12, a plurality of barbs 1205 of fixedly connected with on the outer wall of polishing magnet 1202, barb 1205 is the one end that is close to protection net 1203 with polishing magnet 1202, increase the joint strength between protection tube layer 1204 and the polishing magnet 1202, make between polishing magnet 1202 and the protection tube layer 1204 difficult separation, difficult messenger protection tube layer 1204 takes place excessive deformation under the exogenic action, difficult messenger polishing magnet 1202 exposes.

Referring to fig. 7-8, the protective tube layer 1204 is far away from the magnetic rubber sphere 1201 and includes a three-dimensional rubber shell 13, the three-dimensional rubber shell 13 is in a three-dimensional spiral shape, adjacent three-dimensional rubber shells 13 are wound together to increase the ability of the protective tube layer 1204 to maintain the spatial structure of the protective tube layer 1204, so that the protective tube layer 1204 is not prone to excessive deformation under the action of external force, an elastic cavity 15 is drilled in the three-dimensional rubber shell 13 to increase the elasticity of the three-dimensional rubber shell 13, in the process of collision of the polishing ball 12, the impact generated by the collision can be absorbed through the deformation of the three-dimensional rubber shell 13 to reduce the impact loss, the elastic cavity 15 is filled with an elastic fiber cluster 14, the elastic fiber cluster 14 is in a three-dimensional structure in the elastic cavity 15 to increase the strength of the three-dimensional rubber shell 13, so that the three-dimensional rubber shell 13 can be quickly, one end of each elastic fiber cluster 14 penetrates through the three-dimensional rubber shell 13 and extends to the outer side of the three-dimensional rubber shell 13, and the elastic fiber clusters 14 on the outer surfaces of the adjacent three-dimensional rubber shells 13 are mutually wound together, so that the connection strength between the adjacent three-dimensional rubber shells 13 can be effectively increased, and the three-dimensional rubber shells 13 can be kept in self spatial configuration.

Compared with the traditional magnetic needle, the polishing ball 12 of the scheme has better wear resistance, simultaneously, workers can quickly set the optimal polishing parameters of the magnetic polishing machine 1 through the Internet of things to achieve the optimal polishing effect, the phenomenon that the surface of stainless steel tableware is not polished completely and the phenomenon that the self-abrasion is too large and the normal use is influenced due to excessive polishing of the surface of the stainless steel tableware is not easy to occur is avoided, simultaneously, the workers can upload the polishing result to the cloud end 4 of the Internet of things through the processing terminal 3 to be stored, when the multiple polishing effects of the magnetic polishing machine 1 are all incomplete, the phenomenon that the polishing ball 12 is abraded excessively is shown, the polishing ball 12 needs to be replaced, the monitoring on the magnetic polishing machine can be realized, the polishing effect of the magnetic polishing machine is ensured, the polishing work of the stainless steel tableware is not easy to be influenced, and under the condition that the polishing ball 12 is abraded excessively, the polishing sand 1207 stored in the storage cavity 1206 can be released, insufficient polishing caused by excessive abrasion of the polishing ball 12 is made up, meanwhile, workers are reminded to replace the polishing ball 12 in time, and finally, through the structural design of the three-dimensional rubber shell 13 and the elastic fiber cluster 14, the protection effect on the polishing magnetic needle 1202 is improved, so that the polishing magnetic needle 1202 is not prone to excessive self-abrasion, and the loss of the polishing ball 12 is reduced.

The foregoing is only a preferred embodiment of the present invention; the scope of the invention is not limited thereto. Any person skilled in the art should be able to cover the technical scope of the present invention by equivalent or modified solutions and modifications within the technical scope of the present invention.

Claims

1. The utility model provides an intelligent polishing system of stainless steel tableware which characterized in that: the system comprises a magnetic polishing machine (1), wherein a control terminal (2) is arranged in the magnetic polishing machine (1), the control terminal (2) is in signal connection with a processing terminal (3), and the processing terminal (3) is in signal connection with an Internet of things cloud (4);

the utility model provides an intelligent burnishing device of stainless steel tableware, magnetic force burnishing machine (1) includes burnishing machine main part (5), the upper end fixedly connected with electromagnetism generating device (6) of burnishing machine main part (5), spacing groove (7) are cut to the upside of burnishing machine main part (5), spacing groove (7) are located the outside of electromagnetism generating device (6), polishing jar (8) have been placed to the upside of burnishing machine main part (5), the lower extreme fixedly connected with of polishing jar (8) and spacing ring with spacing groove (7) assorted, sealed cushion (10) with self assorted have been placed to the upper end of polishing jar (8), polishing solution (11) and polishing ball (12) have been placed in polishing jar (8), polishing ball (12) suspend in polishing solution (11), polishing ball (12) include magnetism rubber ball body (1201), the polishing magnetic needle (1202) is fixedly connected to the surface of the magnetic rubber sphere (1201), one end, close to the magnetic rubber sphere (1201), of the polishing magnetic needle (1202) penetrates through the magnetic rubber sphere (1201) and extends into the magnetic rubber sphere (1201), a protection net (1203) is arranged on the outer side of the magnetic rubber sphere (1201) in a shooting mode, the protection net (1203) always has an inward contraction trend, one end, far away from the magnetic rubber sphere (1201), of the polishing magnetic needle (1202) penetrates through the protection net (1203), one end, far away from the magnetic rubber sphere (1201), of the protection net (1203) is fixedly connected with a protection tube layer (1204), and the polishing magnetic needle (1202) is buried in the protection tube layer (1204).

2. The intelligent polishing device for stainless steel tableware according to claim 1, characterized in that: and a sealing rubber pad (10) is connected between the polishing tank (8) and the sealing cover (9), and the sealing rubber pad (10) is fixedly connected with the sealing cover (9).

3. The intelligent polishing device for stainless steel tableware according to claim 1, characterized in that: one end of the polishing magnetic needle (1202), which is far away from the magnetic rubber sphere (1201), is in a round head shape, and the polishing magnetic needle (1202) is made of a material with higher hardness than stainless steel tableware.

4. The intelligent polishing device for stainless steel tableware according to claim 1, characterized in that: a storage cavity (1206) is formed in the polishing magnetic needle (1202) in a chiseled mode, the storage cavity (1206) is located at one end, far away from the magnetic rubber ball body (1201), of the polishing magnetic needle (1202), a plurality of polishing sands (1207) are filled in the storage cavity (1206), and the polishing sands (1207) are made of high-hardness magnetic sands.

5. The intelligent polishing device for stainless steel tableware according to claim 4, wherein: the polishing sand (1207) is coated with red paint.

6. The intelligent polishing device for stainless steel tableware according to claim 1, characterized in that: a plurality of barbs (1205) are fixedly connected to the outer wall of the polishing magnetic needle (1202), and the barbs (1205) are close to one end of the protection net (1203) with the polishing magnetic needle (1202).

7. The intelligent polishing device for stainless steel tableware according to claim 1, characterized in that: the protective tube layer (1204) is far away from the magnetic rubber sphere (1201) and comprises a three-dimensional rubber shell (13), the three-dimensional rubber shell (13) is in a three-dimensional spiral shape, and the adjacent three-dimensional rubber shells (13) are wound together.

8. The intelligent polishing device for stainless steel tableware according to claim 7, characterized in that: an elastic cavity (15) is formed in the three-dimensional rubber shell (13) in a chiseled mode, and the elasticity of the three-dimensional rubber shell (13) is improved.

9. The intelligent polishing device for stainless steel tableware according to claim 8, wherein: the elastic cavity (15) is filled with elastic fiber clusters (14), and the elastic fiber clusters (14) are in a three-dimensional structure in the elastic cavity (15).

10. The intelligent polishing device for stainless steel tableware according to claim 9, wherein: one end of each elastic fiber cluster (14) penetrates through the three-dimensional rubber shell (13) and extends to the outer side of the three-dimensional rubber shell (13), and the elastic fiber clusters (14) on the outer surfaces of the adjacent three-dimensional rubber shells (13) are mutually wound together.