CN216609724U - Tire mold - Google Patents

Abstract

The utility model provides a tire mold, which comprises a mold body and an assembling ring, wherein at least part of the mold body is positioned on the outer side of the assembling ring so as to form an annular cavity between the mold body and the assembling ring, and the annular cavity is used for accommodating a tire material and a press-fit ring positioned on one side of the tire material, which is close to the assembling ring; the die body is connected with the assembling ring; the supporting ring is additionally arranged between the press-fit ring and the assembly ring, even if the supporting ring is sleeved on the outer side of the assembly ring, the press-fit ring is sleeved on the outer side of the supporting ring, the supporting ring can be in contact with the press-fit ring, so that the supporting ring can support the press-fit ring, the stress degree of the press-fit ring is further enhanced, the deformation of the press-fit ring is avoided, and the problem that the press-fit ring is easily deformed due to the fact that a solid tire mold in the prior art is solved.

Description

Tire mold

Technical Field

The utility model relates to the technical field of tires, in particular to a tire mold.

Background

The traditional press-fit solid tire mold is characterized in that a press-fit ring is in direct contact fit with a mold steel ring, on one hand, the contact surface of the press-fit ring and the mold steel ring is small, the solid tire has high vulcanization pressure, rubber materials which should overflow from a tire blank cannot overflow timely, and the press-fit ring is thin and is easy to deform under the action of pressure; on the other hand, a gap is formed between the press-fit ring and the steel ring of the mold, and the rubber material easily flows into the steel ring, so that the rubber edge is generated at the seam allowance part, and the appearance of the tire is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model mainly aims to provide a tire mold to solve the problem that a press fit ring is easy to deform in a solid tire mold in the prior art.

In order to achieve the above object, the present invention provides a tire mold comprising: a mold body; the assembling ring is arranged on the outer side of the die body, at least part of the die body is connected with the assembling ring, so that an annular cavity is formed between the die body and the assembling ring, and the annular cavity is used for containing the tire material and a press-fit ring arranged on one side of the tire material, which is close to the assembling ring; the support ring is used for being sleeved on the outer side of the assembling ring and is used for being in contact with the press-fit ring so as to support the press-fit ring.

Further, the assembling ring comprises a first assembling ring part and a second assembling ring part along the extending direction of the central axis of the assembling ring, and the first assembling ring part and the second assembling ring part can be butted or detachably arranged; the support ring comprises a first support part, a second support part and a third support part which are sequentially connected along the extension direction of the central axis of the support ring, and the first support part and the third support part are respectively sleeved on the outer sides of the first assembling ring part and the second assembling ring part; the second supporting part is used for being sleeved at the outer side of the butt joint position of the first assembling ring part and the second assembling ring part; wherein the central axis of the support ring coincides with the central axis of the mounting ring.

Further, along the extending direction of the central axis of the support ring, the support ring comprises a first support part, a second support part and a third support part which are connected in sequence; the contact surface between the first supporting part and the assembling ring is a first contact surface, the first contact surface is provided with a first end far away from the second supporting part and a second end close to the second supporting part, and the first contact surface is gradually close to the central axis of the supporting ring from the first end of the first contact surface to the second end of the first contact surface; and/or the side surface of the second support part facing the assembling ring is a cylindrical surface; and/or the contact surface between the third support part and the assembling ring is a second contact surface, the second contact surface is provided with a first end close to the second support part and a second end far away from the second support part, and the first contact surface is gradually far away from the central axis of the support ring from the direction from the first end of the second contact surface to the second end of the second contact surface.

Further, a chamfer is arranged between the end face of at least one end part of the support ring and the outer wall; and/or the length of the support ring is equal to that of the press fit ring along the extension direction of the central axis of the support ring; and/or a glue outlet groove is formed in the die body, communicated with the annular cavity and extended to the outer wall surface of the die body.

Furthermore, a groove is formed in the outer wall of the assembling ring and used for embedding the support ring and the press-fit ring.

Furthermore, two side walls of the groove are respectively used for being in contact with two end faces of the support ring and for being in contact with two end faces of the press fit ring, two clamping grooves are formed in the die body, and two end portions of the assembly ring are respectively clamped in the two clamping grooves.

Furthermore, two side walls of the groove are respectively arranged in one-to-one correspondence with the two clamping grooves, and the end part of the notch of each clamping groove is positioned on one side, close to the annular cavity, of the corresponding side wall of the groove.

Furthermore, two side walls of the groove are respectively used for contacting with two end faces of the support ring and contacting with two end faces of the press-fit ring, annular protruding parts are arranged on the two side walls of the groove, and the protruding parts are used for being inserted into the press-fit ring; wherein the free end of the longitudinal section of the boss is a tip.

Furthermore, the support ring is provided with a preset opening, the preset opening extends from the outer wall to the inner wall of the support ring and extends to two ends of the support ring along the extending direction of the central axis of the support ring.

Further, in the direction from the outer wall to the inner wall of the support ring, the width of the section, perpendicular to the central axis of the support ring, of the opening cavity with the preset opening is gradually increased; and/or the minimum width of the preset opening ranges from 1.5mm to 2mm, and the width direction of the preset opening is perpendicular to the extending direction of the central axis of the support ring.

By applying the technical scheme of the utility model, the tire mold comprises a mold body and an assembly ring, wherein at least part of the mold body is positioned on the outer side of the assembly ring so as to form an annular cavity between the mold body and the assembly ring, and the annular cavity is used for accommodating a tire material and a press-fit ring positioned on one side of the tire material, which is close to the assembly ring; the die body is connected with the assembling ring; through add the support ring between pressing to join in marriage the circle and the assembly circle, even the support ring cover is established in the outside of assembly circle, press to join in marriage the snare and establish in the outside of support ring, the support ring can with press to join in marriage the circle contact to make the support ring form the supporting role to pressing to join in marriage the circle, and then strengthen the atress of pressing to join in marriage the circle, avoid pressing to join in marriage the deformation of circle, solved the problem that solid tyre mould among the prior art caused press to join in marriage the deformation of circle easily.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the utility model and, together with the description, serve to explain the utility model and not to limit the utility model. In the drawings:

fig. 1 shows a structural schematic view of a first half-mold and a second half-mold of a tire mold according to the present invention in a separated state;

FIG. 2 is a schematic view showing a structure in which a tire material and a press-fit bead are provided in a second annular cavity portion of the tire mold of the present invention;

FIG. 3 shows a schematic view of a tire material and press-fit ring disposed within an annular cavity of a tire mold of the present invention;

FIG. 4 shows a schematic structural view of a support ring of a tire mold according to the present invention;

FIG. 5 shows a top view of a support ring of the tire mold of FIG. 4;

FIG. 6 shows a schematic structural view of a mounting ring of a tire mold according to the present invention;

fig. 7 shows a schematic structural view of the arrangement of the convex portion of the fitting ring of the tire mold according to the present invention on the groove sidewall.

Wherein the figures include the following reference numerals:

100. a tire mold; 101. a first mold half; 102. a second mold half;

10. a mold body; 11. a first body portion; 12. a second body portion; 121. an outer ring portion; 122. an intermediate portion; 13. a glue outlet groove; 14. a card slot; 20. assembling a ring; 21. a first fitting ring portion; 22. a second fitting ring portion; 23. a groove; 231. a boss portion; 232. a first groove portion; 233. a second groove portion;

30. an annular cavity; 31. a first annular cavity portion; 32. a second annular chamber portion; 40. a support ring; 41. a first support section; 42. A second support portion; 43. a third support portion; 44. presetting an opening; 51. a first fastener; 52. a second fastener;

210. press fitting a ring; 220. and (4) preparing a tire material.

Detailed Description

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.

It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

The utility model provides a tire mold 100, please refer to fig. 1 to 7, the tire mold 100 includes a mold body 10, a mounting ring 20 and a support ring 40, at least a portion of the mold body 10 is located outside the mounting ring 20 and connected to the mounting ring 20, so that an annular cavity 30 is defined between the mold body 10 and the mounting ring 20, the annular cavity 30 is used for accommodating a tire material 220 and a press-fit ring 210 located on a side of the tire material 220 close to the mounting ring 20; the support ring 40 is used for being sleeved outside the assembling ring 20 and is used for being in contact with the press-fit ring 210 so as to support the press-fit ring 210.

In the tire mold 100 of the present invention, the tire mold 100 comprises a mold body 10 and a mounting ring 20, at least a portion of the mold body 10 is located outside the mounting ring 20, so that an annular cavity 30 is defined between the mold body 10 and the mounting ring 20, the annular cavity 30 is used for accommodating a tire material 220 and a press-fit ring 210 located on one side of the tire material 220 close to the mounting ring 20; the die body 10 is connected with the assembling ring 20; through add support ring 40 between press-fit ring 210 and assembly ring 20, even support ring 40 cover is established in the outside of assembly ring 20, press-fit ring 210 cover is established in the outside of support ring 40, support ring 40 can with press-fit ring 210 contact to make support ring 40 to press-fit ring 210 form the supporting role, and then strengthen press-fit ring 210's atress degree, avoid press-fit ring 210's deformation, solved the problem that solid tyre mould among the prior art caused press-fit ring to warp easily.

The outer wall surface of the support ring 40 is in close contact with or in clearance fit with the inner wall surface of the press-fit ring 210.

Alternatively, the tire mold 100 is a solid tire mold, the mounting ring 20 is a steel ring, and the tire material 220 includes a plurality of rubber rings stacked along the extending direction of the central axis of the mounting ring 20.

Specifically, the tire mold 100 includes a first half mold 101 and a second half mold 102 along an extending direction of a central axis of the tire mold 100, the first half mold 101 and the second half mold 102 being butt-fittable or separably provided; wherein the first mold half 101 is an upper mold half and the second mold half 102 is a lower mold half.

Specifically, in the extending direction of the central axis of the fitting ring 20, the fitting ring 20 includes a first fitting ring portion 21 and a second fitting ring portion 22, and the first fitting ring portion 21 and the second fitting ring portion 22 may be butted or detachably provided; wherein the central axis of the mounting ring 20 coincides with the central axis of the tire mold 100.

Specifically, the die body 10 includes a first body portion 11 and a second body portion 12 along an extending direction of the central axis of the fitting ring 20, and the first body portion 11 and the second body portion 12 may be butted or detachably provided; the first body portion 11 and the first fitting ring portion 21 constitute a first mold half 101; the second body portion 12 and the second fitting ring portion 22 constitute a second half mold 102.

Specifically, at least a part of the first body portion 11 is located outside the first fitting ring portion 21 and connected to the first fitting ring portion 21 so that a first annular chamber portion 31 is enclosed between the first body portion 11 and the first fitting ring portion 21; at least a portion of the second body portion 12 is located outside the second fitting collar portion 22 and is connected to the second fitting collar portion 22, so that a second annular cavity portion 32 is enclosed between the second body portion 12 and the second fitting collar portion 22, and the first annular cavity portion 31 and the second annular cavity portion 32 are butted and communicated to form an annular cavity 30.

Specifically, the first body portion 11 and the first fitting ring portion 21 are relatively fixed by the first fastening member 51 which is pierced on the first body portion 11 and the first fitting ring portion 21; the second body portion 12 and the second fitting ring portion 22 are relatively fixed by the second fastening member 52 inserted through the second body portion 12 and the second fitting ring portion 22.

Specifically, the second body portion 12 includes an outer ring portion 121 and an intermediate portion 122, the outer ring portion 121 is disposed on the outer side of the intermediate portion 122, at least a portion of the outer ring portion 121 is disposed on the outer side of the second fitting ring portion 22, a second annular cavity portion 32 is enclosed between the outer ring portion 121 and the second fitting ring portion 22, and the intermediate portion 122 is connected to the second fitting ring portion 22.

In the present embodiment, the support ring 40 includes a first support portion 41, a second support portion 42, and a third support portion 43 connected in this order along the extending direction of the central axis of the support ring 40, and the first support portion 41 and the third support portion 43 are respectively configured to be fitted on the outer sides of the first fitting ring portion 21 and the second fitting ring portion 22; the second support portion 42 is configured to be fitted outside a butt joint position of the first fitting ring portion 21 and the second fitting ring portion 22; wherein the central axis of the support ring 40 coincides with the central axis of the mounting ring 20.

Specifically, the support ring 40 is an integrally formed structure.

Specifically, at least a portion of the side of the mounting ring 20 facing the support ring 40 is in abutting contact with the side of the support ring 40 facing the mounting ring 20.

Specifically, a side surface of the first support portion 41 facing the first fitting ring portion 21 is in abutting contact with a side surface of the first fitting ring portion 21 facing the first support portion 41, a contact surface between the first support portion 41 and the fitting ring 20 (i.e., the first fitting ring portion 21) is a first contact surface having a first end distant from the second support portion 42 and a second end close to the second support portion 42, and the first contact surface is gradually close to the central axis of the support ring 40 in a direction from the first end of the first contact surface to the second end thereof; namely, the first contact surface is a conical surface, and the inclination angle of the first contact surface relative to the central axis of the support ring 40 is 5 to 10 degrees; if the angle of inclination of the first contact surface with respect to the central axis of the support ring 40 is too large, this may result in too large a maximum wall thickness of the support ring 40, which may in turn have an influence on the elastic effect of the support ring 40.

Specifically, the side of the second support 42 facing the fitting ring 20 is a cylindrical surface.

Specifically, the side of the third support portion 43 facing the second fitting ring portion 22 is in close contact with the side of the second fitting ring portion 22 facing the third support portion 43, the contact surface between the third support portion 43 and the fitting ring 20 (i.e., the second fitting ring portion 22) is a second contact surface, the second contact surface has a first end close to the second support portion 42 and a second end far from the second support portion 42, and the first contact surface is gradually far from the central axis of the support ring 40 in the direction from the first end of the second contact surface to the second end thereof; namely, the second contact surface is a conical surface, and the inclination angle of the second contact surface relative to the central axis of the support ring 40 is 5 degrees to 10 degrees; if the angle of inclination of the second contact surface with respect to the central axis of the support ring 40 is too large, this may result in too large a maximum wall thickness of the support ring 40, which may in turn have an influence on the elastic effect of the support ring 40.

Alternatively, the first support part 41 and the third support part 43 are symmetrically arranged with respect to a predetermined symmetry plane, which is perpendicular to the central axis of the support ring 40.

In this embodiment, a chamfer is provided between the end surface of at least one end of the support ring 40 and the outer wall thereof, and the chamfer can be used as a guide angle to facilitate the entry of the tire material 220 into the annular cavity 30.

Specifically, a chamfer is provided between an end surface of the first support portion 41 remote from the second support portion 42 and an outer wall thereof, and/or a chamfer is provided between an end surface of the third support portion 43 remote from the second support portion 42 and an outer wall thereof.

Optionally, the chamfer between the end face of at least one end of the support ring 40 and its outer wall is a beveled chamfer.

In the present embodiment, a groove 23 is formed on an outer wall of the assembly ring 20, and the groove 23 is used for embedding the support ring 40 and the press-fit ring 210; wherein the groove 23 is an annular groove.

Specifically, as shown in fig. 6, a first groove portion 232 is provided on an outer wall of the first fitting ring portion 21, a second groove portion 233 is provided on an outer wall of the second fitting ring portion 22, and the first groove portion 232 and the second groove portion 233 are butted and communicated to form a groove 23; wherein the first and second groove portions 232 and 233 are both annular grooves.

In the present embodiment, two side walls of the groove 23 are respectively used for contacting with two end faces of the support ring 40 and for contacting with two end faces of the press-fit ring 210, two clamping grooves 14 are provided on the die body 10, and two end portions of the assembly ring 20 are respectively clamped in the two clamping grooves 14.

It should be noted that the distribution directions of the two side walls of the groove 23 are parallel to the extending direction of the central axis of the fitting ring 20, the distribution directions of the two end surfaces of the support ring 40 are parallel to the extending direction of the central axis of the support ring 40, and the distribution directions of the two end surfaces of the press-fit ring 210 are parallel to the distribution directions of the two end surfaces of the support ring 40.

Specifically, two side walls of the groove 23 are respectively arranged in one-to-one correspondence with the two clamping grooves 14, and the end portion of the notch of each clamping groove 14 is located on one side, close to the annular cavity 30, of the corresponding side wall of the groove 23, so that two end portions of the support ring 40 in the groove 23 respectively extend into the corresponding clamping grooves 14, and two end portions of the press fit ring 210 respectively extend into the corresponding clamping grooves 14, and the structural arrangement can reduce the flow of the rubber material in the annular cavity 30 to the assembly ring 20.

Specifically, two card slots 14 are provided on the first body portion 11 and the second body portion 12, respectively.

Specifically, both side walls of the groove 23 are located on the first groove portion 232 and the second groove portion 233, respectively.

In this embodiment, two side walls of the groove 23 are each provided with a ring-shaped protruding portion 231, and the protruding portions 231 are used for being inserted into the press-fit ring 210; the free end of the longitudinal section of the protruding portion 231 is a tip, so that the free end of the protruding portion 231 forms a circle of sharp edge, thereby facilitating the protruding portion 231 to be inserted into the press-fit ring 210; the raised parts 231 are arranged to block and cut off the rubber compound flowing from the tire material 220, so that the rubber compound flowing from the tire material 220 is prevented from flowing to the assembling ring 20 and the supporting ring 40; moreover, since the two protrusions 231 are respectively inserted into the two end surfaces of the press-fit ring 210, a circle of intaglio printing is formed on both end surfaces of the press-fit ring 210; the glue stock flowing into the gap between the protruding portion 231 and the gravure can be cut off by the tip of the protruding portion 231, so that the regularity of the glue edge is kept, and the cut glue stock is convenient to clean.

Note that the central axis of the annular boss 231 coincides with the central axis of the mounting ring 20; in the protruding direction of the protruding part 231, the protruding part 231 has a connection end and a free end, and the connection end of the protruding part 231 is connected with the corresponding side wall of the groove 23; the longitudinal section of the boss 231 is parallel to the central axis of the boss 231; the projecting direction of the projecting portion 231 is parallel to the extending direction of the center axis of the fitting ring 20.

Alternatively, as shown in fig. 7, the longitudinal section of the boss 231 is triangular; for example, the longitudinal section of the convex portion 231 is an equilateral triangle.

Specifically, the height of the protrusion 231 is 1.2mm to 1.3mm, and the outer surface of the protrusion 231 is nitrided, so that the outer surface of the protrusion 231 has high hardness and the free end is sharp; the hardness of the protruding portion 231 is greater than that of the press-fit ring 210, so that the protruding portion 231 can be used repeatedly for a long time, and the problem that the free end of the protruding portion 231 is dull and difficult to insert into the press-fit ring 210 is avoided.

Optionally, the hardness of the boss 231 is greater than or equal to 55 HRC.

In the present embodiment, the length of the support ring 40 is equal to the length of the press-fit ring 210 in the extending direction of the central axis of the support ring 40.

In this embodiment, the mold body 10 is provided with a glue outlet groove 13, and the glue outlet groove 13 is communicated with the annular cavity 30 and extends to the outer wall surface of the mold body 10, so that the glue material in the annular cavity 30 flows out through the glue outlet groove 13.

Optionally, the glue discharging grooves 13 are multiple, and the glue discharging grooves 13 are arranged at intervals along the circumferential direction of the die body 10.

Optionally, the glue outlet groove 13 is provided on the first body part 11 and/or on the second body part 12.

In the present embodiment, the support ring 40 is provided with the predetermined openings 44, and the predetermined openings 44 extend from the outer wall to the inner wall of the support ring 40 and extend to the two ends of the support ring 40 along the extending direction of the central axis of the support ring 40, such that the support ring 40 has elasticity in the direction perpendicular to the central axis thereof.

Specifically, the width of the cross section of the opening cavity of the preset opening 44 perpendicular to the central axis of the support ring 40 gradually increases in the direction from the outer wall to the inner wall of the support ring 40, and the width direction of the preset opening 44 is perpendicular to the thickness direction of the support ring 40 (i.e., the distribution direction of the outer wall and the inner wall of the support ring 40).

Specifically, the preset openings 44 are arranged such that the support ring 40 has two open end surfaces, that is, two open end surfaces are provided at the preset openings 44 of the support ring 40, each open end surface has an outer end and an inner end, and the direction from the outer end to the inner end of each open end surface is the same as the direction from the outer wall to the inner wall of the support ring 40; in the direction from the outer end to the inner end of each opening end face, the opening end face is gradually away from the other opening end face.

Specifically, the minimum width of the preset opening 44 ranges from 1.5mm to 2mm, that is, the horizontal distance between the outer ends of the two opening end surfaces is the minimum width of the preset opening 44, and the width direction of the preset opening 44 is perpendicular to the extending direction of the central axis of the support ring 40.

Specifically, each open end face has a corresponding radial face, which is a plane passing through the outer end of the open end face and the central axis of the support ring 40; and the end surfaces of the openings and the corresponding radial surfaces form included angles.

Alternatively, as shown in fig. 5, the included angle between each opening end surface and the corresponding radial surface is 30 degrees, and the included angle between two opening end surfaces is 60 degrees.

In the embodiment, the support ring 40 is made of 45 # steel and is processed by a heat treatment mode of medium temperature tempering, the hardness of the support ring 40 is 44HRC to 46HRC (rockwell hardness), and the support ring processed by the process can keep better elasticity.

Specifically, the steel ring is made of 42 CrMo; the surface of the steel ring is nitrided, so that the surface hardness of the steel ring is greater than or equal to 55 HRC.

In the present embodiment, the ratio of the outer diameter of the support ring 40 to the inner diameter of the press-fit ring 210 ranges from 0.985 to 0.995; the ratio of the outer diameter of the support ring 40 to the inner diameter of the press-fit ring 210 affects the durability of the elasticity of the support ring 40, and the ratio of the outer diameter of the support ring 40 to the inner diameter of the press-fit ring 210 is too large, that is, the outer diameter of the support ring 40 is small, and the contraction range of the support ring 40 is large, which may cause fatigue of the support ring 40 after repeated contraction, especially in a high-temperature use environment, the support ring 40 is very easy to fatigue, and further causes permanent deformation and loss of elasticity of the support ring 40; the ratio of the outer diameter of the support ring 40 to the inner diameter of the press-fit ring 210 is too small, that is, the outer diameter of the support ring 40 is large, the contraction range of the support ring 40 is small, which causes difficulty in loading the tire material into the annular cavity 30, and the support ring 40 and the molded tire blank (including the tire material and the press-fit ring 210) are easily adhered to each other during demolding of the tire blank, which causes difficulty in tire demolding.

In the present embodiment, the maximum wall thickness of the support ring 40 is greater than or equal to 20mm, and the minimum wall thickness of the mounting ring 20 is greater than or equal to 40 mm.

In the specific implementation process, after the first half mold 101 and the second half mold 102 are abutted, and when the rubber compound of the tire material 220 in the annular cavity 30 flows, the assembly ring 20 supports the support ring 40, and the support ring 40 supports the press-fit ring 210, so as to prevent the press-fit ring 210 from deforming, and in this process, since the support ring 40 has the preset opening 44, that is, the support ring 40 has elasticity, the preset opening 44 of the support ring 40 contracts, that is, the support ring 40 contracts.

After the first mold half 101 is opened, that is, the first mold half 101 and the second mold half 102 are separated, the support ring 40 is separated from the first assembling ring portion 21 of the first mold half 101, so that the support ring 40 slides out along the second assembling ring portion 22 in a direction away from the second assembling ring portion 22, the contracted support ring 40 can be restored to its original state under the elastic action, and the support ring 40 slides out to be separated from the green tire, thereby ensuring smooth tire discharging of the green tire.

From the above description, it can be seen that the above-described embodiments of the present invention achieve the following technical effects:

in the tire mold 100 of the present invention, the tire mold 100 comprises a mold body 10 and a mounting ring 20, at least a portion of the mold body 10 is located outside the mounting ring 20, so that an annular cavity 30 is defined between the mold body 10 and the mounting ring 20, the annular cavity 30 is used for accommodating a tire material 220 and a press-fit ring 210 located on one side of the tire material 220 close to the mounting ring 20; the die body 10 is connected with the assembling ring 20; through add support ring 40 between press-fit ring 210 and assembly ring 20, even support ring 40 cover is established in the outside of assembly ring 20, press-fit ring 210 cover is established in the outside of support ring 40, support ring 40 can with press-fit ring 210 contact to make support ring 40 to press-fit ring 210 form the supporting role, and then strengthen press-fit ring 210's atress degree, avoid press-fit ring 210's deformation, solved the problem that solid tyre mould among the prior art caused press-fit ring to warp easily.

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are, for example, capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

Spatially relative terms, such as "above … …," "above … …," "above … … surface," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. A tire mold, comprising:

a mold body (10);

a mounting ring (20), at least a part of the die body (10) is positioned outside the mounting ring (20) and connected with the mounting ring (20) so as to form an annular cavity (30) between the die body (10) and the mounting ring (20), and the annular cavity (30) is used for containing a tire material (220) and a press-fit ring (210) positioned on one side of the tire material (220) close to the mounting ring (20);

the support ring (40), the support ring (40) is used for the cover to establish the outside of assembly circle (20) and is used for with press-fit ring (210) contact, in order to support press-fit ring (210).

2. A tire mold according to claim 1, wherein said fitting ring (20) includes a first fitting ring portion (21) and a second fitting ring portion (22) in an extending direction of a central axis of said fitting ring (20), said first fitting ring portion (21) and said second fitting ring portion (22) being abuttable or separably provided;

the support ring (40) comprises a first support part (41), a second support part (42) and a third support part (43) which are connected in sequence along the extension direction of the central axis of the support ring (40), and the first support part (41) and the third support part (43) are respectively used for being sleeved on the outer sides of the first assembling ring part (21) and the second assembling ring part (22); the second supporting part (42) is used for being sleeved outside the butt joint position of the first assembling ring part (21) and the second assembling ring part (22); wherein the central axis of the support ring (40) coincides with the central axis of the fitting ring (20).

3. Tyre mould according to claim 1, characterized in that said support ring (40) comprises, in the extension direction of the central axis of said support ring (40), a first support (41), a second support (42) and a third support (43) connected in sequence;

the contact surface between the first supporting part (41) and the assembling ring (20) is a first contact surface, the first contact surface is provided with a first end far away from the second supporting part (42) and a second end close to the second supporting part (42), and the first contact surface is gradually close to the central axis of the supporting ring (40) from the first end of the first contact surface to the second end of the first contact surface; and/or

The side surface of the second support part (42) facing the assembling ring (20) is a cylindrical surface; and/or

The contact surface between the third supporting portion (43) and the assembling ring (20) is a second contact surface, the second contact surface is provided with a first end close to the second supporting portion (42) and a second end far away from the second supporting portion (42), and the first contact surface is gradually far away from the central axis of the supporting ring (40) from the first end of the second contact surface to the second end of the second contact surface.

4. The tire mold of claim 1,

a chamfer is arranged between the end face and the outer wall of at least one end part of the support ring (40); and/or

The length of the support ring (40) is equal to the length of the press fit ring (210) along the extension direction of the central axis of the support ring (40); and/or

The mould is characterized in that a glue outlet groove (13) is formed in the mould body (10), and the glue outlet groove (13) is communicated with the annular cavity (30) and extends to the outer wall surface of the mould body (10).

5. The tire mold according to claim 1, wherein the outer wall of the mounting ring (20) is provided with a groove (23), and the groove (23) is used for embedding the support ring (40) and the press-fit ring (210).

6. Mould according to claim 5, wherein the two side walls of the recess (23) are respectively intended to be in contact with the two end faces of the support ring (40) and with the two end faces of the press-fit ring (210), the mould body (10) is provided with two slots (14), and the two ends of the assembly ring (20) are respectively snapped into the two slots (14).

7. Mould according to claim 6, wherein the two side walls of the groove (23) are arranged in a one-to-one correspondence with the two slots (14), respectively, the end of the notch of each slot (14) being located on the side of the respective side wall of the groove (23) close to the annular cavity (30).

8. The tyre mold according to claim 5, characterized in that two side walls of said groove (23) are respectively intended to be in contact with two end faces of said support ring (40) and with two end faces of said press-fit ring (210), said groove (23) being provided on both side walls with a ring-shaped projection (231), said projection (231) being intended to be inserted on said press-fit ring (210); wherein the free end of the longitudinal section of the projection (231) is a tip.

9. The tire mold according to claim 1, wherein the support ring (40) is provided with a predetermined opening (44), and the predetermined opening (44) extends from the outer wall to the inner wall of the support ring (40) and extends to both ends of the support ring (40) along the extension direction of the central axis of the support ring (40).

10. The tire mold of claim 9,

in the direction from the outer wall to the inner wall of the support ring (40), the width of the section of the opening cavity of the preset opening (44) perpendicular to the central axis of the support ring (40) is gradually increased; and/or

The minimum width of the preset opening (44) ranges from 1.5mm to 2mm, and the width direction of the preset opening (44) is perpendicular to the extending direction of the central axis of the support ring (40).

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