One-time tire framework and tire forming method

Abstract

The invention discloses a one-step tire framework and a tire forming method, the tire framework comprises at least one group of base bodies formed by one-step machining and a plurality of supporting structures, the base bodies are of plate-shaped structures and form cylindrical structures after being machined and deformed, and fixing protrusion base body joints are connected with fixing groove base body joints to enable the base bodies to form the cylindrical structures; the at least one base body function hole is formed in the base body in a penetrating mode to enhance the attaching force of the base body and a rubber material, the at least one base body connecting port is formed in the base body to be connected with a pressure bearing ring, the multiple supporting structures transversely extend from the base body and are distributed in the radial direction of the tire, and the supporting structures can be bent and deformed to form the tire body framework radian. The supporting structure positioning holes penetrate through the outer sides, away from the base body, of the supporting structures so as to connect the mounting ring and the rim, the supporting structure functional holes penetrate through the inner sides, close to the base body, of the supporting structures so as to enhance the attaching force of the supporting structures and rubber materials, the number of connecting points of the supporting structures on the tread portion is eliminated, supporting performance is high, and controllability is excellent.

Description

Technical Field

[0001] The invention relates to the technical field of tire manufacturing, and in particular to a one-step tire frame and a tire molding method. Background Art

[0002] The existing all-steel radial truck and bus tires were mainly launched by the French Michelin Company in the 1950s. The structure of the all-steel radial tire includes tread, base rubber, belt layer, carcass, soft apex rubber, hard apex rubber, bead wear-resistant rubber, sidewall rubber, airtight layer, transition layer, etc. After nearly 70 years of development, all-steel radial rubber tires have obvious advantages in performance and fuel consumption, and are currently widely promoted around the world.

[0003] The manufacturing steps of all-steel radial rubber tires are as follows: first, the rubber compound is mixed in an internal mixer, then the components are produced by extrusion or calendering, the components are compounded into a tire blank by a molding machine, and finally, the tire is vulcanized in a vulcanizer to obtain a finished tire. That is, the three main steps are the production of components, molding of the tire blank, and vulcanization of the tire blank.

[0004] The existing technology uses the casting technology to greatly simplify the tire manufacturing process, especially the process used in CN110561979B, which greatly reduces the production cost, production process, and fixed assets. In actual production, although the overall process is simplified, the tire frame assembly has the disadvantages of complex manufacturing process, complex assembly, and poor buffering performance, which seriously affects the production rhythm; in actual use, the frame deformation of the tread is large, which easily causes stress concentration at the connection point between the pressure ring and the carcass frame, reducing the tire life.

[0005] The above information disclosed in this Background section is only for enhancement of understanding of the background of the invention and therefore it may contain information that does not form the prior art that is already known to a person of ordinary skill in the art. Summary of the invention

[0006] The purpose of the present invention is to provide a one-step tire frame and a tire molding method. The one-piece molding eliminates the number of connection points of the supporting structure at the tread portion. After the frame is deformed by processing, it can be quickly assembled with the pressure ring, the mounting ring, and the rim, and placed in a mold for casting to obtain a finished tire. The finished tire has the advantages of simple assembly, strong support, excellent controllability, and good buffering performance, and can greatly improve work efficiency.

[0007] In order to achieve the above object, the present invention provides the following technical solutions:

[0008] A one-step tire frame of the present invention comprises at least one set of one-step processed substrate and a plurality of supporting structures, wherein:

[0009] The substrate is a plate-like structure and after processing and deformation, it forms a cylindrical structure.

[0010] A fixed groove base joint is provided at one end of the base in the longitudinal direction,

[0011] A fixed protrusion base joint is arranged in the longitudinal direction of the base and opposite to the other end of the fixed groove base joint. The fixed protrusion base joint is connected to the fixed groove base joint to form a cylindrical structure of the base.

[0012] At least one substrate functional hole is provided through the substrate to enhance the adhesion between the substrate and the rubber material.

[0013] At least one base connection port, which is opened on the base to connect to the pressure ring,

[0014] A plurality of support structures extending laterally from the base and arranged along the radial direction of the tire, wherein the support structures can be bent and deformed into the curvature of the tire carcass skeleton,

[0015] At least one support structure positioning hole is provided on the outer side of the support structure away from the base body to connect the mounting ring and the rim,

[0016] At least one supporting structure functional hole is provided through the inner side of the supporting structure close to the substrate to enhance the adhesion between the supporting structure and the rubber material.

[0017] In the one-step tire frame, the outer contour of the matrix functional hole or the supporting structure functional hole is S-shaped, circular, elliptical or polygonal.

[0018] The one-step tire frame has a base that can be used in conjunction with a pressure ring. The base connection port is connected to the pressure ring by welding, riveting, bonding, bolt assembly or slot assembly. The base can also be used alone.

[0019] In the one-step tire frame, the end of the fixing groove base joint is provided with a first groove with a first inclination angle, the first groove is recessed with at least one fixing groove, the end of the fixing protrusion base joint is provided with a second groove with a second inclination angle, the second groove is protruding outwardly with at least one fixing protrusion, and the fixing groove connects and positions the fixing protrusion.

[0020] In the one-step tire frame, the sum of the first inclination angle and the second inclination angle is 180 degrees.

[0021] In the one-step tire frame, the support structure is symmetrically arranged on both sides of the base, or the support structure is arranged on one side of the base. After two one-step tire frames are spliced ​​on both sides, the support structures are symmetrically arranged on both sides of the base.

[0022] In the one-step tire frame, the airbag is placed in the space of the support structure symmetrically arranged on both sides of the base.

[0023] In the one-step tire frame, the one-step tire frame is a symmetrical structure.

[0024] The tire forming method of the one-step tire frame includes:

[0025] Step 1, forming a base and a support structure in one step, after the base is deformed by processing, the fixed groove base joints and the fixed protrusion base joints on both sides are first connected and fixed to form a cylindrical structure, and then the roundness of the cylinder is corrected on a roundness correction machine, and the support structure is bent and deformed to form the curvature of the tire carcass skeleton;

[0026] Step 2, placing the substrate and the supporting structure into a heat treatment furnace, completing the corresponding heat treatment process according to the surface hardness requirements, and performing surface treatment on the tire skeleton after the heat treatment;

[0027] Step 3, the base of the cylindrical structure is connected to the pressure ring through the base connection port, the airbag is inserted before connecting the mounting ring, and then the bent support structure is positioned and connected to the mounting ring through the positioning hole, and the roundness is corrected;

[0028] Step 4, placing the surface-treated frame into a drying oven to control humidity and prevent surface rust;

[0029] Step 5, soaking or spraying the one-step tire frame with glue and drying it, connecting the one-step tire frame with the rim, centering the rim, and correcting the overall roundness;

[0030] Step 6, assembling the tire mold, placing the one-step tire frame connected to the rim into the mold and positioning it, putting it into an oven for preheating after positioning, and then pouring the tire, wherein the airbag is inflated first, and then the sidewall of the lower mold is poured, and after the rubber solidifies, the rubber at the nozzle position is poured, and after solidification, the mold is turned 180° to complete the pouring of the other sidewall, and after the rubber solidifies, the mold is turned to a vertical position to complete the pouring of the tread part, and the poured tire is placed in an oven for curing; after curing, the finished tire is removed from the mold.

[0031] In the method described, one-step forming includes extrusion, drawing, spinning, stamping, machining, injection molding, casting or 3D printing, the base is formed into a cylindrical structure by spinning, stamping and machining, and the supporting structure is formed into the curvature of the tire carcass skeleton by spinning, stamping and machining.

[0032] The present invention adopts an integrated molding process, which has a simpler structure and significantly reduces the number of connection points between the pressure ring and the tire frame, reduces the stress concentration of the frame, and improves the life of the tire; the manufacturing cost is significantly lower than the existing technologies such as support structures, elastic columns, elastic columnar structures and elastic sheets, making the tire cost lower; the entire production process has fewer steps, the number of manpower required is reduced, and the assembly efficiency is greatly improved; compared with the existing technology, it is more convenient to recycle, and the speed of peeling off and reusing the frame after the tire is recycled is faster, which improves the utilization rate of the frame; the frame has strong support, and in extreme cases, the external polymer is damaged or deflated, or the tire bursts, it does not affect the tire load-bearing capacity and can continue to be used; the frame, the pressure ring, the mounting ring, and the rim are assembled into a whole and can be used directly as a tire; the tire made with the frame has higher force transmission efficiency and more sensitive control. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0034] Figure 1 This is the tire skeleton expansion diagram of the first method;

[0035] Figure 2 A three-dimensional view of a fixed groove base joint;

[0036] Figure 3 A stereoscopic view of a fixed protrusion base joint;

[0037] Figure 4 A three-dimensional diagram of a tire skeleton after the base is formed into a cylindrical shape;

[0038] Figure 5 A three-dimensional diagram of the tire frame after the support structure is bent into the curvature of the carcass frame;

[0039] Figure 6 It is a plane view after the base and the supporting structure are deformed;

[0040] Figure 7 This is a stereoscopic diagram of the assembly of the primary method frame, installation ring and pressure ring;

[0041] Figure 8 This is a stereoscopic diagram of the assembly of the primary frame, mounting ring, pressure ring and rim;

[0042] Fig. 9 This is a partial stereogram of the assembly of the primary frame, mounting ring, pressure ring and rim;

[0043] Fig.10This is a stereogram of the tire frame and mounting ring assembly in one-step method;

[0044] Fig.11 This is a stereoscopic diagram of the tire frame, mounting ring and rim assembly in one process;

[0045] Fig.12 This is a partial stereogram of the tire skeleton after deformation by the primary method;

[0046] Fig.13 There are two sets of unilateral skeleton stereograms;

[0047] Fig.14 A three-dimensional image of the back of the base body of the two sets of single-sided skeletons forming a cylindrical shape;

[0048] Fig.15 The supporting structures of two sets of single-side frames are bent into a three-dimensional diagram of the arc of the carcass frame;

[0049] Fig.16 It is a set of plane diagrams after deformation of a single-side skeleton;

[0050] Fig.17 A stereoscopic diagram of two sets of single-side frames deformed and spliced ​​and assembled with the mounting ring;

[0051] Fig.18 It is a stereoscopic diagram of two sets of single-side frames after deformation and splicing, and assembly with the installation ring and the pressure ring;

[0052] Fig.19 It is a stereoscopic diagram of two sets of single-sided skeletons that are deformed and spliced ​​and assembled with the mounting ring, pressure ring, and rim.

[0053] Description of reference numerals:

[0054] 1. Base; 1-1. Fixed groove base joint; 1-2. Fixed protrusion base joint; 1-3. Base functional hole; 1-4. Base connection port; 2. Support structure; 2-1. Support structure positioning hole; 2-2. Support structure functional hole; 3. Fixed groove; 4. Fixed protrusion; 5. Mounting ring; 6. Rim; 7. Pressure ring; 8. Weld. DETAILED DESCRIPTION

[0055] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0056] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0057] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0058] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0059] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0060] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0061] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0062] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0063] See also Figure 1-19 As shown, in one embodiment, a one-step tire frame of the present invention comprises at least one set of one-step processed substrate and a plurality of support structures, wherein:

[0064] The substrate 1 is a plate-like structure and is deformed into a cylindrical structure after processing.

[0065] A fixed groove base joint 1-1 is provided at one end of the base 1 in the longitudinal direction.

[0066] A fixed protrusion base joint 1-2 is arranged in the longitudinal direction of the base 1 and opposite to the other end of the fixed groove base joint 1-1. The fixed protrusion base joint 1-2 is connected to the fixed groove base joint 1-1 to form the base 1 into a cylindrical structure.

[0067] At least one substrate functional hole 1-3 is provided through the substrate 1 to enhance the adhesion between the substrate 1 and the rubber material.

[0068] At least one base connection port 1-4 is opened on the base 1 to connect to the pressure ring 7,

[0069] A plurality of support structures 2 extending laterally from the base 1 and arranged along the radial direction of the tire, wherein the support structures 2 can be bent and deformed into the curvature of the tire carcass skeleton.

[0070] At least one support structure positioning hole 2-1 is provided on the outer side of the support structure 2 away from the base 1 to connect the mounting ring 5 and the rim 6,

[0071] At least one supporting structure functional hole 2-2 is provided through the inner side of the supporting structure 2 close to the substrate 1 to enhance the adhesion between the supporting structure 2 and the rubber material.

[0072] In a preferred embodiment of the one-step tire skeleton, the outer contour of the base functional hole 1-3 or the supporting structure functional hole 2-2 is S-shaped, circular, elliptical or polygonal.

[0073] In a preferred embodiment of the one-step tire frame, the base 1 can be connected and used in conjunction with the pressure ring 7, and the base connection ports 1-4 are connected to the pressure ring 7 by welding, riveting, bonding, bolt assembly or slot assembly, and the base 1 can also be used alone.

[0074] In a preferred embodiment of the one-step tire frame, the end of the fixing groove base joint 1-1 is provided with a first groove with a first inclination angle, the first groove is recessed with at least one fixing groove 3, the end of the fixing protrusion base joint 1-2 is provided with a second groove with a second inclination angle, the second groove is protruding outwardly with at least one fixing protrusion 4, and the fixing groove 3 connects and positions the fixing protrusion 4.

[0075] In a preferred embodiment of the one-step tire frame, the sum of the first inclination angle and the second inclination angle is 180 degrees.

[0076] In a preferred embodiment of the one-step tire frame, the support structure 2 is symmetrically arranged on both sides of the base 1, or the support structure 2 is arranged on one side of the base 1. After two one-step tire frames are spliced ​​on both sides, the support structure 2 is symmetrically arranged on both sides of the base 1.

[0077] In the preferred embodiment of the one-step tire frame, the airbag is placed in the space of the support structure 2 symmetrically arranged on both sides of the base 1.

[0078] In a preferred embodiment of the one-step tire frame, the one-step tire frame is a symmetrical structure.

[0079] A tire molding method for a one-step tire frame comprises:

[0080] Step 1, forming a base 1 and a support structure 2 in one step, after the base 1 is deformed by processing, the fixed groove base joints 1-1 and the fixed protrusion base joints 1-2 on both sides are first connected and fixed to form a cylindrical structure, and then the cylindrical roundness is corrected on a roundness correction machine, and the support structure 2 is bent and deformed to form the curvature of the tire carcass skeleton;

[0081] Step 2, placing the substrate 1 and the supporting structure 2 into a heat treatment furnace, completing the corresponding heat treatment process according to the surface hardness requirements, and performing surface treatment on the heat-treated one-step tire skeleton;

[0082] Step 3, the cylindrical base 1 is connected to the pressure ring 7 through the base connection port 1-4, the airbag is inserted before connecting the mounting ring 5, and then the bent support structure 2 is positioned and connected to the mounting ring 5 through the positioning hole 2-1, and the roundness is corrected;

[0083] Step 4, placing the surface-treated frame into a drying oven to control humidity and prevent surface rust;

[0084] Step 5, soaking or spraying the one-step tire frame with glue and drying it, connecting the one-step tire frame with the rim 6, and centering the rim 6 to correct the overall roundness;

[0085] Step 6, assembling the tire mold, placing the one-step tire frame connected to the rim 6 into the mold and positioning it, putting it into an oven for preheating after positioning, and then pouring the tire, wherein the airbag is inflated first, and then the sidewall of the lower mold is poured, and after the rubber solidifies, the rubber at the nozzle position is poured, and after solidification, the mold is turned 180° to complete the pouring of the other sidewall, and after the rubber solidifies, the mold is turned to a vertical position to complete the pouring of the tread part, and the poured tire is placed in an oven for curing; after curing, the finished tire is removed from the mold.

[0086] In a preferred embodiment of the method, one-step forming includes extrusion, drawing, spinning, stamping, machining, injection molding, casting or 3D printing, the base 1 is formed into a cylindrical structure by spinning, stamping and machining, and the support structure 2 is formed into the curvature of the tire carcass skeleton by spinning, stamping and machining.

[0087] In one embodiment, multiple groups of base bodies and multiple supporting structures formed at one time can be combined.

[0088] In one embodiment, a one-step tire skeleton is composed of a base 1 and a support structure 2, and the base 1 and the support structure 2 can be processed and formed at one time; the base 1 is a plate-like structure with a quadrilateral cross-section and a certain thickness, which is formed into a cylindrical structure after being deformed by processing, and is provided with a fixed groove base joint 1-1, a fixed protrusion base joint 1-2, a base functional hole 1-3, and a base connection port 1-4; the base 1 is connected to the pressure ring 7, has high bearing strength, and can stabilize the overall skeleton shape; the support structure 2 is a structure with a certain shape and thickness that is integrally connected to the base 1 and extends to both sides, and can form the curvature of the tire carcass skeleton after bending and deformation, and the support structure 2 is arranged along the radial direction of the tire as a whole, providing the tire with bearing, buffering and torsion performance; the support structure 2 is provided with a support structure positioning hole 2-1 on the outside and a support structure functional hole 2-2 on the inside; the base 1 and the support structure 2 are deformed to form a skeleton, which can be quickly assembled with the mounting ring 5, the rim 6, and the pressure ring 7. The substrate is provided with substrate functional holes 1-3 to enhance the adhesion between the substrate and the rubber. The external contour of the functional holes can be S-shaped, circular, elliptical, polygonal or special-shaped, and the number and depth thereof are determined according to different tire specifications. The substrate is provided with substrate connection ports 1-4 to connect the frame to the pressure ring. The number and depth thereof are determined according to different tire specifications. The specific connection method can be welding, riveting, bonding, bolt assembly, and slot assembly. The joints at both ends of the substrate 1 are provided with a fixed groove substrate joint 1-1 and a fixed protrusion substrate joint 1-2. The joints are provided with a fixed groove 3 and a fixed protrusion 4, wherein the fixed groove 3 is used to place and position the fixed protrusion 4, and the fixed protrusion is used to connect the first and second grooves on both sides, and the two cooperate to improve the firmness of the groove connection. The number of the fixed groove 3 and the fixed protrusion 4 can be single or multiple, and can be multi-piece or integrated. The support structure 2 can be arranged on both sides of the base 1 in a symmetrical arrangement; it can also be arranged on one side of the base 1, and the two sides are spliced ​​to form a symmetrical arrangement. The outer side of the support structure is arranged with a support structure positioning hole 2-1, which is used to connect the support structure with the mounting ring and the rim; the inner side of the support structure is arranged with a support structure functional hole 2-2 to enhance the adhesion between the support structure and the rubber. The base 1 can be connected and used in conjunction with the pressure ring 7. The base connection port 1-4 is connected to the pressure ring by welding, riveting, bonding, bolt assembly or slot assembly, and the base 1 can also be used alone. The airbag can be inserted through the space of the support structure 2 symmetrically arranged on both sides of the base 1; the airbag can also be inserted before the bases on both sides are spliced. Preferably, according to different usage scenarios, the tire with the airbag can be used as either a pneumatic tire or a non-pneumatic tire. " and "As a preference, the one-step tire frame and the pressure ring, the mounting ring, and the rim can be assembled by welding, riveting, bonding, bolt assembly, or slot assembly.

[0089] In one embodiment, a tire building method includes:

[0090] The base 1 and the support structure 2 are formed by one-step molding, and the specific method can be extrusion, drawing, spinning, stamping, machining, injection molding, casting, or 3D printing;

[0091] After the base 1 is deformed by processing, the fixed groove base joints 1-1 and the fixed protrusion base joints 1-2 on both sides are first connected and fixed to form a cylindrical structure. The specific method can be spinning, stamping, and machining, and then the roundness of the cylinder is corrected on a roundness correction machine;

[0092] The support structure 2 is bent and deformed to form the curvature of the tire carcass skeleton, and the specific method can be spinning, stamping, or machining;

[0093] Place the skeleton into a heat treatment furnace and complete the corresponding heat treatment process according to the surface hardness requirements;

[0094] The surface of the heat-treated skeleton is degreased, rusted, and oxidized;

[0095] Connect the cylindrical structure base 1 with the pressure ring 7 through the base connection port 1-4, insert the airbag before connecting the mounting ring 5, then position and connect the bent support structure 2 with the mounting ring 5 through the positioning hole 2-1, and correct the roundness of the formed skeleton; put the skeleton with completed surface treatment into the drying oven, control the humidity to prevent surface corrosion; soak or spray the skeleton with glue, dry it, and leave it for a certain period of time; connect the treated skeleton with the rim 6, and center the rim 6 , correct the overall roundness; assemble the tire mold, place it into the mold as a whole, and position it; after positioning, put it in the oven and preheat it as required; pour the tire: first inflate the airbag, then pour the sidewall of the lower mold, after the rubber solidifies, pour the rubber at the nozzle position, after solidification, turn the mold 180°, complete the pouring of the other sidewall, after the rubber solidifies, turn the mold to a vertical position, complete the pouring of the tread part; put the poured tire into the oven for curing; after curing, demould to obtain a finished tire.

[0096] Preferably, the base 1 is a plate-like structure with a quadrilateral cross section and a certain thickness, which is formed into a cylindrical structure after processing and deformation, and is arranged with a fixed groove base joint 1-1, a fixed protruding base joint 1-2, a base functional hole 1-3, and a base connection port 1-4; the base 1 is connected to the pressure ring 7, with high bearing strength and can stabilize the overall skeleton shape. The base is arranged with base connection ports 1-4 on the base, which are used to connect the skeleton to the pressure ring. The number and depth of the base connection ports are determined according to different tire specifications. The specific connection method can be welding, riveting, bonding, bolt assembly, and slot assembly.

[0097] Preferably, support structure positioning holes 2-1 are arranged on the outside of the support structure to connect the support structure with the mounting ring and the rim. The outer contour of the positioning holes can be S-shaped, circular, elliptical, polygonal or irregular, and the number and depth of the positioning holes depend on different tire specifications.

[0098] Preferably, support structure functional holes 2-2 are arranged on the inner side of the support structure to enhance the adhesion between the support structure and the rubber. The outer contour of the functional holes can be S-shaped, circular, elliptical, polygonal or irregular, and their number and depth depend on different tire specifications.

[0099] Preferably, the base 1 can be formed into a cylindrical shape by spinning, stamping, and machining, and then the cylindrical roundness can be corrected on a roundness correction machine. The support structure 2 can be deformed by spinning, stamping, and machining to form the curvature of the tire carcass skeleton. The materials used for the base 1 and the support structure 2 can be metal materials, non-metal materials, organic polymer materials, and composite materials. The thickness, length, and size of the connection area can be adjusted according to the tire specifications; a single-layer or multi-layer structure can be made of different materials, and a single-layer or multi-layer structure can also be made of a single material.

[0100] Preferably, the tire with the airbag inserted can be used as either a pneumatic tire or a non-pneumatic tire according to different usage scenarios.

[0101] Preferably, the one-step tire frame and the pressure ring, the mounting ring, and the rim can be assembled by welding, riveting, bonding, bolt assembly, or slot assembly.

[0102] Example 1

[0103] Taking the tire specification 27.00R49 as an example, a hollow tire can be produced. If a high-strength tire carcass is used and the support structure 2 is thickened, it can be used as a non-pneumatic tire. In this case, the support structure 2 is symmetrically arranged on both sides of the base 1, and the tire molding method is as follows:

[0104] First, the base 1 and the symmetrically arranged support structure 2 are punched out, see Figure 1 , rolling the substrate 1 into a cylindrical structure, see Figure 4 , and then bend the support structure 2 into the carcass frame curvature, see Figure 5 , the cross section is as follows Figure 6 As shown. Then put the tire skeleton into the heat treatment furnace at a temperature of 830℃, and the hardness of the workpiece after treatment is HRC40-45. After taking it out, remove oil, rust and oxidation coating from the surface of the tire skeleton. Connect with the pressure ring 7 through the base connection port 1-4, insert the airbag before connecting the mounting ring 5, and position and connect the processed support structure 2 with the mounting ring 5 through the support structure positioning hole 2-1, as shown. Figure 7As shown, after the roundness of the formed skeleton is corrected, it is placed in a drying oven and the humidity is controlled at 10% to 30% RH to prevent surface corrosion. Finally, glue is applied to the entire skeleton and the skeleton is dried and placed for 2 hours.

[0105] Next, the frame is connected to the rim 6, the whole is centered, and the roundness is corrected, such as Figure 8 , Fig. 9 As shown. After assembling the tire mold, insert the skeleton and position it. Preheat in an oven at 80°C for 1 hour as required. When pouring a pneumatic tire, first inflate the airbag, then pour the sidewall of the lower mold. After the rubber solidifies, pour the nozzle position. After solidification, turn the mold 180° and pour the other sidewall. After the rubber solidifies, turn the mold to a vertical position to complete the pouring of the tread. Put the poured tire into an oven for curing for 6 hours. After demolding, the finished tire is obtained. In addition, due to the use of a new tire structure, the tire specification expression method (27.00R49) selected in this example is only a reference to its external dimensions.

[0106] Example 2

[0107] Taking tire 21.00R25 as an example, hollow tires can be produced. When used in low-load scenarios, the base 1 in this skeleton can replace the pressure ring 7. In this case, the support structure 2 is symmetrically arranged on both sides of the base 1, and the tire molding method is as follows:

[0108] First, the base 1 and the symmetrically arranged support structure 2 are punched out, see Figure 1 , rolling the substrate 1 into a cylindrical structure, see Figure 4 , and then bend the support structure 2 into the carcass frame curvature, such as Figure 5 As shown, the cross section is Figure 6 As shown, the tire skeleton is then placed in a heat treatment furnace at a temperature of 830°C. The hardness of the workpiece after heat treatment is HRC40-45. After being taken out, the skeleton surface is degreased, rusted, and oxidized. The airbag is inserted before connecting the mounting ring 5, and the processed support structure 2 is positioned and connected to the mounting ring 5 through the support structure positioning hole 2-1, as shown in FIG. Fig.10 As shown, after the roundness of the formed skeleton is corrected, it is placed in a drying oven and the humidity is controlled at 10% to 30% RH to prevent surface corrosion. Finally, glue is applied to the entire skeleton and the skeleton is dried and placed for 2 hours.

[0109] Next, the frame is connected to the rim 6, and the whole is centered and the roundness is corrected. Fig.11 , Fig.12As shown. After assembling the tire mold, insert the skeleton and position it. Preheat in an oven at 80°C for 1 hour as required. When pouring a pneumatic tire, first inflate the airbag, then pour the sidewall of the lower mold. After the rubber solidifies, pour the nozzle position. After solidification, turn the mold 180° and pour the other sidewall. After the rubber solidifies, turn the mold to a vertical position to complete the pouring of the tread. Put the poured tire into an oven for curing for 6 hours. After demolding, the finished tire is obtained. In addition, due to the use of a new tire structure, the tire specification expression method (21.00R25) selected in this example is only a reference to its external dimensions.

[0110] Example 3

[0111] Taking the tire specification 6.50R10 as an example, hollow tires can be produced. Using a different airbag placement process from the above case, the support structure 2 is only on one side of the base 1 in this case, and the overall frame is spliced ​​by two sets of single-side frames. The tire molding method is as follows:

[0112] First, the base 1 and the single-sided support structure 2 are machined by mechanical processing, see Fig.13 The two substrates 1 with the one-sided support structure 2 are rolled into a cylindrical structure, see Fig.14 , bend the single-sided support structure 2 into the radian of the tire carcass frame, such as Fig.15 , Fig.16 As shown. Then put the frame into the heat treatment furnace at 830℃. The hardness of the workpiece after heat treatment is HRC40-45. After taking it out, remove oil, rust and oxidation coating from the frame surface. Connect the two single-sided carcass frames with the mounting ring 5 through the support structure positioning hole 2-1 on the support structure 2, insert the airbag before splicing the base bodies 1 on both sides, and then weld the base bodies 1 on both sides by the cylinder automatic welding equipment. There is a weld 8 between the base bodies 1, as shown. Fig.17 The cylindrical base 1 is connected to the pressure ring 7 through the base connection port 1-4 and then the roundness is corrected. Fig.18 After completion, place it in a drying oven and control the humidity at 10% to 30% RH to prevent surface rust. Finally, apply glue to the entire surface and dry it for 2 hours.

[0113] Next, the frame is connected to the rim 6, the rim 6 is centrally positioned, and the roundness is corrected, such as Fig.19 , Fig. 9As shown. After assembling the tire mold, insert the skeleton and position it. Preheat in an oven at 80°C for 1 hour as required. When pouring a pneumatic tire, first inflate the airbag, then pour the sidewall of the lower mold. After the rubber solidifies, pour the nozzle position. After solidification, turn the mold 180° and pour the other sidewall. After the rubber solidifies, turn the mold to a vertical position to complete the pouring of the tread. Put the poured tire into an oven for curing for 6 hours. After demolding, the finished tire is obtained. In addition, due to the use of a new tire structure, the tire specification expression method (6.50R10) selected in this example is only a reference to its external dimensions.

[0114] Finally, it should be noted that the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without making any creative work are within the scope of protection of the present application.

[0115] The above description is only by way of illustration of certain exemplary embodiments of the present invention. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A one-step tire frame, characterized in that: It includes at least one set of a matrix and a plurality of supporting structures that are formed at one time, wherein: The substrate is a plate-like structure and after processing and deformation, it forms a cylindrical structure. A fixed groove base joint is provided at one end of the base in the longitudinal direction, A fixed protrusion base joint is arranged in the longitudinal direction of the base and opposite to the other end of the fixed groove base joint. The fixed protrusion base joint is connected to the fixed groove base joint to form a cylindrical structure of the base. At least one substrate functional hole is provided through the substrate to enhance the adhesion between the substrate and the rubber material. At least one base connection port, which is opened on the base to connect to the pressure ring, A plurality of support structures extending laterally from the base and arranged along the radial direction of the tire, wherein the support structures can be bent and deformed into the curvature of the tire carcass skeleton, At least one support structure positioning hole is provided on the outer side of the support structure away from the base body to connect the mounting ring and the rim, At least one supporting structure functional hole is provided through the inner side of the supporting structure close to the substrate to enhance the adhesion between the supporting structure and the rubber material.

2. The one-step tire frame according to claim 1, characterized in that: The outer contour of the functional hole of the base body or the functional hole of the supporting mechanism is S-shaped, circular, elliptical or polygonal.

3. The one-step tire frame according to claim 1, characterized in that: The base can be used in conjunction with a pressure ring, and the base connection port is connected to the pressure ring by welding, riveting, bonding, bolt assembly or slot assembly, or the base can be used alone.

4. The one-step tire frame according to claim 1, characterized in that: The end of the fixing groove base joint is provided with a first groove with a first inclination angle, and the first groove is recessed with at least one fixing groove. The end of the fixing protrusion base joint is provided with a second groove with a second inclination angle, and the second groove is arranged with at least one fixing protrusion protruding outward. The fixing groove connects and positions the fixing protrusion.

5. The one-step tire frame according to claim 4, characterized in that: The sum of the first inclination angle and the second inclination angle is 180 degrees.

6. The one-step tire frame according to claim 1, characterized in that: The support structures are symmetrically arranged on both sides of the base, or the support structures are arranged on one side of the base. After two one-step tire frames are spliced ​​on both sides, the support structures are symmetrically arranged on both sides of the base.

7. The one-step tire frame according to claim 1, characterized in that: The airbag is placed in the space of the support structure symmetrically arranged on both sides of the base.

8. The one-step tire frame according to claim 1, characterized in that: The tire frame of the one-step method is a symmetrical structure.

9. A tire building method using a one-step tire frame according to any one of claims 1 to 8, characterized in that: These include, Step 1, forming a base and a support structure in one step, after the base is deformed by processing, the fixed groove base joints and the fixed protrusion base joints on both sides are first connected and fixed to form a cylindrical structure, and then the roundness of the cylinder is corrected on a roundness correction machine, and the support structure is bent and deformed to form the curvature of the tire carcass skeleton; Step 2, placing the substrate and the supporting structure into a heat treatment furnace, completing the corresponding heat treatment process according to the surface hardness requirements, and performing surface treatment on the tire skeleton after the heat treatment; Step 3, the base of the cylindrical structure is connected to the pressure ring through the base connection port, the airbag is inserted before connecting the mounting ring, and then the bent support structure is positioned and connected to the mounting ring through the positioning hole, and the roundness is corrected; Step 4, placing the surface-treated frame into a drying oven to control humidity and prevent surface rust; Step 5, soaking or spraying the one-step tire frame with glue and drying it, connecting the one-step tire frame with the rim, centering the rim, and correcting the overall roundness; Step 6, assembling the tire mold, placing the one-step tire frame connected to the rim into the mold and positioning it, putting it into an oven for preheating after positioning, and then pouring the tire, wherein the airbag is inflated first, and then the sidewall of the lower mold is poured, and after the rubber solidifies, the rubber at the nozzle position is poured, and after solidification, the mold is turned 180° to complete the pouring of the other sidewall, and after the rubber solidifies, the mold is turned to a vertical position to complete the pouring of the tread part, and the poured tire is placed in an oven for curing; after curing, the finished tire is removed from the mold.

10. The method according to claim 9, characterized in that One-step forming includes extrusion, drawing, spinning, stamping, machining, injection molding, casting or 3D printing. The base is formed into a cylindrical structure through spinning, stamping and machining, and the supporting structure is formed into the curvature of the tire carcass skeleton through spinning, stamping and machining.

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