CN117719276A - Multifunctional tire frame and manufacturing process - Google Patents

Abstract

The multifunctional tyre skeleton is characterized in that the skeleton uses elastic sheet bodies distributed along the radial direction of the tyre around the outer contour direction, a tread reinforcing structure for reinforcing the bearing strength of the tread can be arranged at the top of the skeleton, and a side reinforcing structure for reinforcing the bending resistance and the torsion resistance of the side can be arranged at the side surface of the skeleton, so that the skeleton can be independently processed, molded and assembled; the framework has a supporting function, for example, when external macromolecules are damaged or lack of air or burst, the bearing property and the operability of the tire are not affected, and the framework can be continuously used; the framework can be quickly connected with the mounting ring and the rim, and the whole formed by assembling the framework with the mounting ring and the rim can be directly used as a tire. The above characteristics simplify the manufacturing process of the tire and reduce the cost. The framework is suitable for various solid tires, inflatable tires, retreaded tires, including car tires, passenger car tires, engineering tires, giant tires, special tires and the like, and is particularly suitable for engineering tires and giant tires with lower speed and higher load in high and low temperature environments.

Description

Multifunctional tire frame and manufacturing process

Technical Field

The invention relates to the technical field of tire manufacturing, in particular to a multifunctional tire framework and a manufacturing process.

Background

The existing all-steel radial ply-yarn passenger car tires are mainly introduced by the company Mirelin in France in the fifties of the twentieth century. The all-steel radial tire structure comprises a tread, a base rubber, a belt ply, a tire body, soft triangular rubber, hard triangular rubber, bead abrasion-resistant rubber, sidewall rubber, an airtight layer, a transition layer and the like. Through the development of nearly 70 years, the all-steel radial rubber tire has obvious advantages in performance, oil consumption and other aspects, and is widely popularized in the global scope at present.

The manufacturing steps of the all-steel radial rubber tire are as follows: firstly, mixing rubber materials in an internal mixer, then producing all parts through extrusion or calendaring, compounding the parts by a forming machine to produce a tire blank, and finally vulcanizing in a vulcanizing machine to obtain a finished tire, wherein the three main steps are production of the parts, forming of the tire blank and vulcanization of the tire blank.

The whole molding process of the embryo is complex, higher precision is needed, and the equipment cost is too high. In the usual rubber tire forming process, the tire body needs to be coated with rubber and cut in advance, and then the tire body is turned up, so that the process is complex.

The tire manufacturing process is greatly simplified by adopting the casting technology in the following patent CN110561979B, CN210591242U, CN110948764B, CN211364159U, and particularly the process adopted in the CN110561979B greatly reduces the production cost, the production process and the fixed assets. In actual production, although the whole process is simplified, tire frame assembly (patent ZL202111540463.3, ZL202310309826.5, ZL 202320630965.3) has the defects of complex manufacturing process, complex assembly and poor buffering performance, and seriously affects the production rhythm. The multifunctional tire framework is more convenient and faster to use on the basis of the technology of the patent, and has the advantages of simple manufacturing process, simple assembly, strong supportability, excellent operability and good buffering performance, and the working efficiency can be greatly improved; the framework has the supporting function, and can be used continuously under extreme conditions, such as damage or air deficiency of external polymers and no influence on the bearing performance and the operability of the tire when the tire is burst; the whole body formed by assembling the framework, the mounting ring (patent ZL 202210766780.5) and the rim can be directly used as a tire.

Disclosure of Invention

The multifunctional tyre skeleton is characterized in that the skeleton uses elastic sheet bodies distributed along the radial direction of the tyre around the outer contour direction, a tread reinforcing structure for reinforcing the bearing strength of the tread can be arranged at the top of the skeleton, and a side reinforcing structure for reinforcing the bending resistance and the torsion resistance of the side can be arranged at the side surface of the skeleton, so that the skeleton can be independently processed, molded and assembled; the framework has a supporting function, for example, when external macromolecules are damaged or lack of air or burst, the bearing property and the operability of the tire are not affected, and the framework can be continuously used; the framework can be quickly connected with the mounting ring and the rim, and the whole formed by assembling the framework with the mounting ring and the rim can be directly used as a tire. The above characteristics simplify the manufacturing process of the tire and reduce the cost. The framework is suitable for various solid tires, inflatable tires, retreaded tires, including car tires, passenger car tires, engineering tires, giant tires, special tires and the like, and is particularly suitable for engineering tires and giant tires with lower speed and higher load in high and low temperature environments.

In order to achieve the above object, the present invention provides the following technical solutions:

the framework uses elastic sheet bodies which are distributed along the radial direction of the tire and around the outer contour direction, and can be assembled with a mounting ring (patent ZL 202210766780.5) and a rim.

After the framework is manufactured, sand blasting or acidification treatment is carried out on the surface of the framework, glue is smeared, and the framework is dried for later use;

when the solid tyre is manufactured, the prepared framework is placed into a mould, the mould can be laid down or vertically placed, casting is started, forming can be realized, and the mould is removed after solidification, so that the finished tyre is obtained;

when the hollow tire is manufactured, the prepared framework is placed into a mold, the mold can be laid down horizontally or placed vertically, the inner mold is placed according to the patent ZL202010794141.0, casting is started, the tire can be cast once or the casting of the tire tread, the tire side and other parts is completed in a plurality of times, and the mold is removed after solidification, so that the finished tire is obtained.

Preferably, the skeleton uses elastic sheet bodies distributed along the radial direction of the tire around the outer contour, a tread reinforcing structure for reinforcing the bearing strength of the tread can be arranged at the top of the skeleton, and a side reinforcing structure for reinforcing the bending resistance and the torsion resistance of the side wall can be arranged at the side surface of the skeleton, so that the skeleton can be independently processed, molded and assembled, and the skeleton can be used for reinforcing the bearing strength of the tread, as shown in fig. 1 and 2.

Preferably, the outer contour shape of the elastic sheet body, the tread reinforcing structure and the sidewall reinforcing structure used can be S-shaped, round, oval, polygonal or special-shaped; the lateral shape can be linear, arc-shaped, folded linear, spiral or special-shaped; the cross section shape can be a straight shape, a zigzag shape, a round shape, an oval shape, a ring shape, a polygonal shape or a special shape; the number of the components can be single or multiple; the device can be in a multi-piece type or an integrated type.

Preferably, the tread reinforcing structure used has a composition as shown in figures 4 and 5 and the sidewall reinforcing structure has a composition as shown in figures 6 and 7.

Preferably, when the tire contacts the ground, the tread reinforcing structure can extend along the axial direction of the tire, so as to increase the ground contact area, strengthen the overall strength of the ground contact part of the tire, and automatically retract after leaving the ground, or extend forwards and backwards along the circumferential direction of the tire, so that the stress concentration of the tread is reduced, as shown in fig. 8.

Preferably, the sidewall reinforcing structures can be arranged continuously, see fig. 1, or discontinuously, see fig. 2, and when arranged discontinuously, the sidewall reinforcing structures on the ground-contacting elastic sheet body can extend back and forth along the tire circumferential direction and form local connection with adjacent sidewall reinforcing structures, so that the framework is stressed more uniformly, see fig. 9.

Preferably, the materials of the elastic sheet body, the tread reinforcing structure and the side wall reinforcing structure can be metal materials, nonmetallic materials, organic polymer materials and composite materials, and the thickness, the length and the size of the connecting area can be adjusted according to the specification of the tire; the single-layer or multi-layer structure can be made of different materials, or can be made of a single material; the surface can be provided with functional holes, the shape of the holes is round, semicircular, elliptic, polygonal or special-shaped, and the number and the depth of the holes are determined according to different tire specifications.

Preferably, the elastic sheet used can be used in combination with a spring, can give sufficient rebound characteristics, and can resist external impact, and the spring type includes a cylindrical coil spring, a truncated cone coil spring, a multi-strand coil spring, a belleville spring, a slotted belleville spring, a ring spring, a leaf spring, a plate spring, a rubber-metal coil composite spring, an air spring, a bellows.

Preferably, the elastic sheet body may be integrally assembled with only the mounting ring, see fig. 12 to 17, or with only the rim, see fig. 18 to 21, or with the mounting ring and the rim, see fig. 1, 2, and 22 to 25.

Preferably, the elastic sheet body, the mounting ring and the rim are assembled by welding, riveting, bonding, bolt assembling and clamping groove assembling.

Preferably, the inside of the elastic sheet body used can be made hollow for arranging a cooling circulation device, see fig. 26; the sensors are arranged in the elastic sheet body, the tread reinforcing structure and the sidewall reinforcing structure, so that the use safety coefficient is improved.

Preferably, the elastic sheet body, the tread reinforcing structure and the sidewall reinforcing structure can be manufactured independently, and the specific modes can be extrusion, drawing, spinning, stamping, machining, injection molding, pouring and 3D printing; the elastic sheet body, the tread reinforcing structure and the sidewall reinforcing structure can be integrally manufactured, and the specific modes can be extrusion, drawing, spinning, stamping, machining, injection molding, pouring and 3D printing; the connection mode of the elastic sheet body, the tread reinforcing structure and the sidewall reinforcing structure can be welding, riveting, bonding, bolt assembly and clamping groove assembly.

Preferably, the framework can be integrally manufactured with the mounting ring and the rim, and the specific modes include extrusion, drawing, spinning, stamping, machining, injection molding, pouring and 3D printing.

The skeleton has the following characteristics.

(1) The structure is simplified, the strength is high, and the bearing performance is high;

(2) The manufacturing cost is greatly lower than that of the elastic supporting body (ZL 202111540463.3) and the elastic columns (ZL 202310309826.5 and ZL 202320630965.3), so that the manufacturing cost of the tire is lower;

(3) The whole production process has fewer steps, the required manual quantity is reduced, and the assembly efficiency is greatly improved;

(4) The skeleton molding process is simpler, expands the production types of tires, can produce pneumatic tires, solid tires and inner support tires (see patent CN 213619223U), and is particularly suitable for engineering tires and giant tires with lower speed and higher load in high-temperature and low-temperature environments;

(5) The elastic sheet body has a simple structure, is convenient for mass and various production, does not need to be matched with a pressure-bearing ring for use, and greatly improves the assembly efficiency of the skeleton structure;

(6) Compared with an elastic support body (ZL 202111540463.3) and elastic columns (ZL 202310309826.5 and ZL 202320630965.3), the framework is more convenient to recover, the framework is peeled off and reused after the tire is recovered, the utilization rate of the framework is improved, and the cost is reduced;

(7) Under extreme conditions, the external macromolecule is damaged or is in short of air, the bearing of the tire is not affected under the condition of tire burst, and the tire can be continuously used;

(8) The framework, the mounting ring and the rim are assembled into a whole and can be directly used as a tire;

(9) The framework, one or two of the mounting ring and the rim are assembled into a whole and then used as a tire to be directly used, and a single or a plurality of elastic sheet bodies can be quickly replaced;

(10) The tire force manufactured by using the framework has higher transmission efficiency and more sensitive control, and is particularly suitable for tire use scenes needing small-angle correction function.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present invention, and other drawings may be obtained according to these drawings for a person having ordinary skill in the art.

FIG. 1 is an overall assembly view of an elastomeric sheet with tread reinforcing structure, sidewall reinforcing structure (continuous arrangement), mounting ring and rim;

FIG. 2 is an overall assembly view of the elastomeric sheet with tread reinforcing structure, sidewall reinforcing structure (discontinuous arrangement), mounting ring and rim;

FIG. 3 is an exterior profile shape of an elastomeric sheet;

FIG. 4 is a plan view of a tread reinforcing structure composition;

FIG. 5 is a perspective view of a tread reinforcing structure composition;

FIG. 6 is a plan view of a sidewall reinforcing structure composition;

FIG. 7 is a perspective view of a sidewall reinforcement structure;

FIG. 8 is a diagram of the combination of partial tread reinforcing structures as the tire contacts the ground;

FIG. 9 is a combination diagram of a partial sidewall reinforcement structure of a tire in contact with the ground;

FIG. 10 is a plan view of the resilient plate mated with the spring;

FIG. 11 is a perspective view of the elastic sheet and the spring engaged;

FIG. 12 is a plan view of a layer of elastomeric sheet (without tread reinforcing structure and sidewall reinforcing structure) assembled with only the mounting ring;

FIG. 13 is a perspective view of a layer of elastomeric sheet (without tread reinforcing structure and sidewall reinforcing structure) assembled with only the mounting ring;

FIG. 14 is a plan view of a layer of elastomeric sheet (with tread reinforcing structure only) assembled with a mounting ring only;

FIG. 15 is a perspective view of a layer of elastomeric sheet (with tread reinforcing structure only) assembled with a mounting ring only;

FIG. 16 is a plan view of a layer of elastomeric sheet (containing only sidewall reinforcement structures) assembled with only the mounting rim;

FIG. 17 is a perspective view of a layer of elastomeric sheet (containing only sidewall reinforcement structures) assembled with only the mounting collar;

FIG. 18 is a plan view of a layer of elastomeric sheet (containing tread reinforcing structure and sidewall reinforcing structure) assembled with a rim only;

FIG. 19 is a perspective view of a layer of elastomeric sheet (including tread reinforcing structure and sidewall reinforcing structure) assembled with a rim only;

FIG. 20 is a plan view of the two layers of elastomeric sheets assembled integrally with a rim only;

FIG. 21 is a perspective view of a two-layer elastomeric sheet assembled integrally with a rim only;

FIG. 22 is a plan view of the two layers of elastomeric sheets integrally assembled with a mounting ring and rim;

FIG. 23 is a perspective view of the two layers of elastomeric sheets integrally assembled with a mounting ring and rim;

FIG. 24 is a plan view of an integral assembly of a layer of elastomeric sheets and a plurality of annular elastomeric sheets with a mounting ring and rim;

FIG. 25 is a perspective view of an integral assembly of a layer of elastomeric sheets and a plurality of annular elastomeric sheets with a mounting ring and rim;

fig. 26 is a view of an internal hollow elastic sheet.

Reference numerals illustrate:

1. an elastic sheet body; 1-1, an outer layer elastic sheet body; 1-2, an inner layer elastic sheet body;

2. a tread reinforcing structure; 3. a sidewall reinforcing structure; 4. a mounting ring;

5. a rim; 6. a connecting device; 7. a circular ring-shaped elastic sheet body;

8. a tread reinforcing structure outer support structure; 9. a tread reinforcing structure internal cushioning structure;

10. a tread reinforcing structure positioning structure; 11. a sidewall reinforcing structure outboard support structure;

12. a sidewall reinforcing structure internal cushioning structure; 13. a sidewall reinforcing structure positioning structure;

14. and (3) a spring.

Detailed Description

In order to make the technical scheme of the present invention better understood by those skilled in the art, the present invention will be further described in detail with reference to the accompanying drawings.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or terminal that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or terminal. Without further limitation, an element defined by the statement "comprising … …" or "comprising … …" does not exclude the presence of additional elements in a process, method, article or terminal device comprising the element. Further, herein, "greater than," "less than," "exceeding," and the like are understood to not include the present number; "above", "below", "within" and the like are understood to include this number.

The tyre manufactured by using the framework has simplified process and reduced cost. The method of using the carcass is described by taking a tire cast from a liquid polyurethane material as an example.

Taking the above example as an example, the application method is as follows:

example 1

The tire 16.00R25 is selected, and the framework is only integrally assembled with the rim, and the application method is as follows:

first, a frame using a layer of elastic sheet body is manufactured by punching, and then assembled into a whole by caulking, as shown in fig. 18 and 19. The whole is put into the mold, and then casting is started according to the process method of the patent CN110561979B until the casting is completed, and the whole tire is completed.

Example 2

The tire 17.5R25 is selected, and the framework is only integrally assembled with the rim, and the application method is as follows:

firstly, a framework and a rim are manufactured in a machining mode, then the framework is assembled into a whole through bolt connection, an inner elastic sheet body and an outer elastic sheet body are used for the framework, the two elastic sheet bodies are assembled, positioned and molded through clamping grooves, the whole is placed into a die as shown in fig. 20 and 21, and then pouring is started according to the technological method of patent CN110561979B, ZL202010792678.3 and CN213619223U until pouring is completed, and at the moment, the whole tire is completed.

Example 3

The tire 29.5R29 is selected, and the whole assembly of the framework, the mounting ring and the rim is taken as an example, and the application method is as follows:

first, an integral structure of a frame using an inner and outer two-layer elastic sheet body, which is manufactured by spinning, a mounting ring and a rim is manufactured by spinning, as shown in fig. 22 and 23. The whole is put into a mould, and then casting is started according to the technological method of the patent CN110561979B, ZL202010792678.3 and CN213619223U until the casting is completed, and the whole tire is completed.

Example 4

The tire 27.00R49 is selected, and the whole assembly of the framework, the mounting ring and the rim is taken as an example, and the application method is as follows:

first, an integral structure of a skeleton, a mounting ring and a rim is manufactured through 3D printing, wherein the skeleton consists of an outer layer of elastic sheet body and an inner layer of annular elastic sheet bodies, and is manufactured through 3D printing, as shown in fig. 24 and 25. The whole is put into a mould, and then casting is started according to the technological method of the patent CN110561979B, ZL202010792678.3 and CN213619223U until the casting is completed, and the whole tire is completed.

Example 5

The tire 33.00R51 is selected, and the whole assembly of the framework, the mounting ring and the rim is taken as an example, and the application method is as follows:

firstly, a framework, a mounting ring and a rim are manufactured through machining, and then are assembled into a whole through bolting, the framework uses a layer of elastic sheet body, and a tread reinforcing structure and a discontinuously arranged sidewall reinforcing structure are matched, as shown in fig. 2, the tire is directly used as a tire without surface coating, and each material is required to be subjected to special surface treatment so as to prevent corrosion, aging, radiation, acid and alkali, ultra-high temperature and ultra-low temperature.

For the tire, when the tire contacts the ground, the tread reinforcing structure can extend along the axial direction of the tire, so that the ground contact area is increased, the overall strength of the ground contact part of the tire is enhanced, and the tire can automatically retract after leaving the ground or extend forwards and backwards along the circumferential direction of the tire, so that the stress concentration of the tread is reduced; the side reinforcing structures are discontinuously arranged, the side reinforcing structures on the grounding elastic sheet body can extend forwards and backwards along the circumferential direction of the tire and are combined with adjacent side reinforcing structures to form local connection, so that the framework stress is more balanced.

In the technical scheme, the tire frame provided by the invention has the following beneficial effects:

(1) The structure is simplified, the strength is high, and the bearing performance is high;

(2) The manufacturing cost is greatly lower than that of the elastic supporting body (ZL 202111540463.3) and the elastic columns (ZL 202310309826.5 and ZL 202320630965.3), so that the manufacturing cost of the tire is lower;

(3) The whole production process has fewer steps, the required manual quantity is reduced, and the assembly efficiency is greatly improved;

(4) The skeleton molding process is simpler, expands the production types of tires, can produce pneumatic tires, solid tires and inner support tires (see patent CN 213619223U), and is particularly suitable for engineering tires and giant tires with lower speed and higher load in high-temperature and low-temperature environments;

(5) The elastic sheet body has a simple structure, is convenient for mass and various production, does not need to be matched with a pressure-bearing ring for use, and greatly improves the assembly efficiency of the skeleton structure;

(6) Compared with an elastic support body (ZL 202111540463.3) and elastic columns (ZL 202310309826.5 and ZL 202320630965.3), the framework is more convenient to recover, the framework is peeled off and reused after the tire is recovered, the utilization rate of the framework is improved, and the cost is reduced;

(7) Under extreme conditions, the external macromolecule is damaged or is in short of air, the bearing of the tire is not affected under the condition of tire burst, and the tire can be continuously used;

(8) The framework, the mounting ring and the rim are assembled into a whole and can be directly used as a tire;

(9) The framework, one or two of the mounting ring and the rim are assembled into a whole and then used as a tire to be directly used, and a single or a plurality of elastic sheet bodies can be quickly replaced;

(10) The tire force manufactured by using the framework has higher transmission efficiency and more sensitive control, and is particularly suitable for tire use scenes needing small-angle correction function.

While certain exemplary embodiments of the present invention have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that modifications may be made to the described embodiments without departing from the spirit and scope of the invention. Accordingly, the drawings and description are to be regarded as illustrative in nature and not as restrictive of the scope of the invention, which is defined by the appended claims.

Claims (10)

1. The multifunctional tyre skeleton is characterized in that the skeleton uses elastic sheet bodies distributed along the radial direction of the tyre around the outer contour direction, a tread reinforcing structure for reinforcing the bearing strength of the tread can be arranged at the top of the skeleton, and a side reinforcing structure for reinforcing the bending resistance and the torsion resistance of the side can be arranged at the side surface of the skeleton, so that the skeleton can be independently processed, molded and assembled.

2. A multi-purpose tire carcass as claimed in claim 1, wherein the outer profile of the elastomeric sheet, tread reinforcing structure and sidewall reinforcing structure used is S-shaped, circular, oval, polygonal or profiled; the lateral shape can be linear, arc-shaped, folded linear, spiral or special-shaped; the cross section shape can be a straight shape, a zigzag shape, a round shape, an oval shape, a ring shape, a polygonal shape or a special shape; the number of the components can be single or multiple; the device can be in a multi-piece type or an integrated type.

3. The multifunctional tire frame according to claim 1, wherein the materials of the elastic sheet body, the tread reinforcing structure and the sidewall reinforcing structure can be metal materials, nonmetal materials, organic polymer materials and composite materials, and the thickness, the length and the size of the connecting area can be adjusted according to the specification of the tire; the single-layer or multi-layer structure can be made of different materials, or can be made of a single material; the surface can be provided with functional holes, the shape of the holes is round, semicircular, elliptic, polygonal or special-shaped, and the number and the depth of the holes are determined according to different tire specifications; the elastic sheet can be matched with a spring to be used, can generate enough rebound characteristic and can resist external impact.

4. A multi-functional tire carcass according to claim 1, characterized in that the elastic sheet used can be assembled with the mounting ring only, with the rim only, or with the mounting ring and the rim; the assembly mode of the elastic sheet body, the mounting ring and the rim can be welding, riveting, bonding, bolt assembly and clamping groove assembly.

5. A multi-purpose tire frame as in claim 1, wherein the tread reinforcing structure extends axially of the tire when the tire contacts the ground, increases the ground contact area, increases the overall strength of the ground contact area of the tire, and automatically retracts after leaving the ground or extends back and forth in the tire circumferential direction, reducing the concentration of tread stresses.

6. The multifunctional tire carcass of claim 1, wherein the sidewall reinforcement structures can be arranged continuously or discontinuously, and when arranged discontinuously, the sidewall reinforcement structures on the ground-contacting elastomeric sheet can extend back and forth along the tire circumferential direction and form local connections in combination with adjacent sidewall reinforcement structures, so that the carcass stresses are more balanced.

7. A multi-functional tire carcass according to claim 1, characterized in that the inside of the elastic sheet used can be made hollow for arranging cooling circulation means; the sensors are arranged in the elastic sheet body, the tread reinforcing structure and the sidewall reinforcing structure, so that the use safety coefficient is improved.

8. The multifunctional tire carcass of claim 1, wherein the elastic sheet, tread reinforcing structure and sidewall reinforcing structure can be manufactured independently, specifically by extrusion, drawing, spinning, stamping, machining, injection molding, casting, 3D printing; the elastic sheet body, the tread reinforcing structure and the sidewall reinforcing structure can be integrally manufactured, and the specific modes can be extrusion, drawing, spinning, stamping, machining, injection molding, pouring and 3D printing; the connection mode of the elastic sheet body, the tread reinforcing structure and the sidewall reinforcing structure can be welding, riveting, bonding, bolt assembly and clamping groove assembly.

9. A multi-functional tire carcass according to claim 1, characterized in that the carcass used can be made integrally with the mounting ring, rim, in particular by extrusion, drawing, spinning, stamping, machining, injection moulding, casting, 3D printing.

10. A multi-functional tire carcass according to any of claims 1-9, said process being as follows:

after the framework is manufactured, sand blasting or acidification treatment is carried out on the surface of the framework, glue is smeared, and the framework is dried for later use;

when the solid tyre is manufactured, the prepared framework is placed into a mould, the mould can be laid down or vertically placed, casting is started, forming can be realized, and the mould is removed after solidification, so that the finished tyre is obtained;

when the hollow tire is manufactured, the prepared framework is placed into a mold, the mold can be laid down horizontally or placed vertically, the inner mold is placed according to the patent ZL202010794141.0, casting is started, the tire can be cast once or the casting of the tire tread, the tire side and other parts is completed in a plurality of times, and the mold is removed after solidification, so that the finished tire is obtained.