Tire mold and tire

Abstract

The utility model discloses a tire mould and tire, it belongs to tire mould technical field, and the texture part of vulcanization cavity surface of tire mould is equipped with the recess, divides the vulcanization cavity surface into several convex parts, including first convex part, second convex part and third convex part, and the outside of each second convex part is surrounded with six first convex parts and six third convex parts, six third convex parts are uniformly distributed on the same circle, and the second convex part is located in the middle of the circle, and the first convex part and the third convex part are arranged alternately in the circumferential direction, the second convex part, six first convex parts and six third convex parts constitute a texture unit, the arrangement mode is, and there are six texture units in the circumferential direction of each texture unit, and two adjacent texture units have an overlapping area, the recess of texture part is interconnected, improves the filling speed and exhaust speed of rubber when tire vulcanization, is favorable to the forming of texture. The tire formed by the above tire mould vulcanization has blackening effect, and the texture is coordinated, beautiful.

Description

Technical Field

[0001] This utility model relates to the field of tire mold technology, specifically to a tire mold and a tire. Background Technology

[0002] Tires typically feature numerous patterns and logos to enhance brand recognition. Current technology often incorporates textures in the marking areas, creating a dark visual effect that contrasts with the non-marking areas, thus achieving a degree of recognizability and aesthetic appeal. The texture can be formed during the vulcanization process; texture units are machined into the vulcanization cavity surface of the tire mold, with the texture protruding or recessed into the mold surface, resulting in a textured tire. By strategically designing the tire texture, a light-absorbing effect can be achieved, giving the tire a darkened visual appearance, thereby improving its aesthetics and recognizability. Summary of the Invention

[0003] To address the problems existing in the prior art, this utility model provides a tire mold and a tire. The tire vulcanized from the tire mold has a light-absorbing effect, which makes the marking area of ​​the tire have a more significant contrast between light and dark, thus improving the appearance of the tire.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows: This utility model provides a tire mold, wherein a textured portion is provided on the vulcanizing cavity surface of the tire mold for forming the tire texture; the textured portion is provided with grooves, dividing the vulcanizing cavity surface into a plurality of protrusions; the protrusions include a first protrusion, a second protrusion and a third protrusion, and six first protrusions and six third protrusions surround the outer side of each second protrusion, the six third protrusions are evenly distributed on the same circumference, the second protrusion is located in the middle of the circumference where the third protrusions are distributed, and the six first protrusions and six third protrusions are arranged alternately in the circumferential direction; The second protrusion, along with the six first protrusions and six third protrusions surrounding the second protrusion, together constitute a texture unit. The texture units are arranged in the texture section such that six texture units are evenly distributed adjacent to each other in the circumferential direction. Two adjacent texture units have an overlapping area. The overlapping area contains a first protrusion and two adjacent third protrusions located on both sides of the first protrusion in the circumferential direction. The first protrusion and the two third protrusions in the overlapping area are shared by the two texture units.

[0005] In the aforementioned tire mold, the groove width L is 0.10-0.25 mm; And / or, the depth h of the groove is 0.25-0.45 mm; And / or, the cross-section of the groove is V-shaped, and the angle α between the groove wall and the vulcanized cavity surface is 93°-105°.

[0006] In the aforementioned tire mold, the groove trajectory is arc-shaped, and the circumference of the groove trajectory forming the outer side of the third protrusion is the reference circle of the texture unit.

[0007] In one of the tire molds described above, the radius R of the reference circle of the texture unit is 0.55-0.85 mm, and the center distance between the reference circles of two adjacent texture units is 1.25-1.5 times the radius R of the reference circle.

[0008] In one of the tire molds described above, the reference circle radius R of the texture unit is 0.67-0.79 mm; And / or, the distance between the center of the reference circle of two adjacent texture units is 1.25-1.35 times the radius R of the reference circle.

[0009] In one of the tire molds described above, six of the first protrusions are evenly distributed in the circumferential direction within the same texture unit.

[0010] In the aforementioned tire mold, within the same texture unit, the six first protrusions are divided into two groups, with the two groups of first protrusions distributed on two different circumferences. Alternatively, within the same texture unit, the six first convex portions are distributed on the same circumference.

[0011] In the aforementioned tire mold, the first protrusion has an axisymmetric structure, and its axis of symmetry is the line connecting the centers of the reference circles of the two texture units sharing the first protrusion; the peripheral surface of the first protrusion includes a first outer surface, a third outer surface, and two second outer surfaces, the first outer surface and the third outer surface are respectively located at the radial ends of the first protrusion, and are connected by two symmetrically arranged second outer surfaces; the first outer surface and the third outer surface are convex arc surfaces, and the second outer surface is a concave arc surface; The third protrusion has three sets of fifth outer surfaces, which are connected in sequence to form a ring; the fifth outer surface is an outwardly convex arc surface. The outer peripheral surface of the second protrusion includes three or six fourth outer surfaces, which are concave arc surfaces.

[0012] In the above-mentioned tire mold, the fourth outer side surface, which is arranged opposite to the third outer side surface or the first outer side surface, is coaxial with the third outer side surface or the first outer side surface. And / or, the fifth outer surface, which is disposed opposite to the second outer surface, is coaxial with it; And / or, the center cross-sectional distances of the first outer surface, the second outer surface, the third outer surface, the fourth outer surface, and the fifth outer surface are equal; And / or, the second protrusion is a centrally symmetrical structure, and its center of symmetry is the center of the reference circle of the texture unit.

[0013] A tire is formed by vulcanization using the aforementioned tire mold.

[0014] The beneficial effects of this utility model are as follows: The textured part of the tire mold is composed of several textured units arranged according to a set pattern. Each textured unit includes six first protrusions, one second protrusion, and six third protrusions. In the circumferential direction of the textured unit, the six first protrusions and six third protrusions are spaced apart from each other, and the second protrusion is located at the center of the textured unit. The arrangement is that six textured units are adjacent and evenly distributed in the circumferential direction of each textured unit. Two adjacent textured units have an overlapping area, which contains one first protrusion and two third protrusions. The first protrusion, second protrusion, and third protrusion are all set independently, so that the grooves are interconnected, the flow is good, the air is easily vented, the phenomenon of air entrapment and insufficient rubber is reduced, and the vulcanization effect and vulcanization quality are guaranteed. Meanwhile, the grooves are evenly and densely distributed with the first, second, and third protrusions, and the texture is interwoven with each other, so that the vulcanized tire presents a connected ridge pattern, avoiding the situation where multiple ridges are connected at one point, thus affecting the visual effect. While maximizing the shaping space and processing capabilities, the texture features denser protrusions, resulting in tires vulcanized from tire molds that have a light-absorbing effect and a better blackening effect. Each texture unit is circular in shape, and the grooves also adopt an arc-shaped design, making the texture harmonious and aesthetically pleasing. Each texture unit resembles the traditional hydrangea pattern, which is beautiful and auspicious, enjoys high public recognition and popularity, and is conducive to the application and promotion of tire products. Attached Figure Description

[0015] Figure 1 This is a partial structural schematic diagram of the first embodiment of the tire mold of this utility model; Figure 2 This is a schematic diagram of the texture unit structure in the first embodiment of the tire mold of this utility model; Figure 3 This is a schematic diagram of the groove structure in the first embodiment of the tire mold of this utility model; Figure 4 This is a schematic diagram showing the relative position of adjacent texture units in the first embodiment of the tire mold of this utility model; Figure 5 This is a partial structural schematic diagram of the second embodiment of the tire mold of this utility model; Figure 6 This is a schematic diagram showing the relative position of adjacent texture units in a second embodiment of the tire mold of this utility model; Figure 7 This is a partial structural schematic diagram of the third embodiment of the tire mold of this utility model; Figure 8 This is a schematic diagram showing the relative position of adjacent texture units in the third embodiment of the tire mold of this utility model.

[0016] In the picture: 100 - Texture unit; 101 - First convexity; 102 - Second convexity; 103 - Third convexity; 104 - First outer surface; 105 - Second outer surface; 106 - Third outer surface; 107 - Fourth outer surface; 108 - Fifth outer surface; 100a - First texture unit; 100b - Second texture unit; 201-Groove. Detailed Implementation

[0017] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to the accompanying drawings.

[0018] The vulcanizing cavity surface of the tire mold is provided with a textured part to form the tire texture; the vulcanizing cavity surface refers to the mold surface that is in contact with the outer surface of the tire, which can be the inner surface of the side plate, the inner surface of the tread block, or the surface of the movable block, etc., which are mold surfaces that participate in the forming of the outer surface of the tire.

[0019] Please refer to Figures 1-8 The textured section has several grooves 201, which are recessed into the vulcanizing cavity surface and divide the vulcanizing cavity surface corresponding to the textured section into several protrusions. The protrusions include a first protrusion 101, a second protrusion 102, and a third protrusion 103. The first protrusion 101, the second protrusion 102, and the third protrusion 103 are all independently distributed in a dotted pattern, meaning that adjacent protrusions are separated by grooves 201. Please refer to... Figure 2 and Figure 3 When the tire mold is used, the groove 201, the first protrusion 101, the second protrusion 102 and the third protrusion 103 together form a textured surface on the outer side of the tire, with the groove 201 corresponding to the protrusion of the tire texture.

[0020] It should be noted that the appendix Figure 1-8 In order to clearly show the structure of the textured part, the outlines of the first protrusion 101, the second protrusion 102 and the third protrusion 103 are shown with solid lines, and the trajectory of the groove 201 is shown with dashed lines.

[0021] like Figure 3As shown, the cross-section of the groove 201 is V-shaped, and the two side walls of the groove 201 are inclined, with the angle α between the groove wall and the vulcanizing cavity surface ranging from 93° to 105°. The depth h of the groove 201 is 0.25-0.45 mm, preferably 0.30-0.40 mm; the groove opening width L of the groove 201 is 0.10-0.25 mm, preferably 0.13-0.23 mm.

[0022] The cross-section of the groove 201 can also be set as U-shaped, trapezoidal, etc., as needed, and the bottom of the groove can be flat, curved, etc.

[0023] The grooves 201 and protrusions within the texture section are arranged according to a predetermined pattern. Specifically, each second protrusion 102 is surrounded by six first protrusions 101 and six third protrusions 103. A second protrusion 102 and the six first protrusions 101 and six third protrusions 103 surrounding it together constitute a texture unit 100. The six first protrusions 101 and six third protrusions 103 are spaced apart in the circumferential direction. The six third protrusions 103 are distributed on the same circumference and are evenly distributed in the circumferential direction, that is, the central angle between two adjacent third protrusions 103 is 60°. One of the third protrusions 103 rotates 60° in the circumferential direction and then coincides with the next third protrusion 103. The second protrusion 102 is located at the center of the circumference where the six third protrusions 103 are distributed.

[0024] In the following text, in order to explain the arrangement of the grooves 201 and the protrusions of the textured part, a reference circle is introduced as an arrangement reference. The reference circle is concentric with the circumference of the third protrusion 103 and surrounds the radial outer side of the third protrusion 103. The second protrusion 102 is located in the middle of the reference circle, and the position of the first protrusion 101 in the radial direction of the reference circle can be selected according to actual needs. In other words, the first protrusion 101 can partially extend out of the reference circle or be completely inside the reference circle.

[0025] Specifically, the distribution of the first protrusions 101 relative to the reference circle differs from that of the third protrusions 103. Specifically, the six first protrusions 101 can be radially distributed on the same circumference concentric with the reference circle; for example, as... Figure 1 , Figure 5 As shown, six first protrusions 101 are evenly distributed on the same circumference. One first protrusion 101 can be rotated 60° circumferentially along the reference circle to coincide with another first protrusion 101. Alternatively, as... Figure 7 As shown, the six first protrusions 101 are divided into two groups of three. The two groups of first protrusions 101 are located on circumferences of different diameters concentric with the reference circle, and the first protrusions 101 in the two groups are arranged alternately in the circumferential direction. In other words, for two first protrusions 101 in a certain group, the central angle is 120°, and one first protrusion 101 will coincide with the other first protrusion 101 after rotating 120°.

[0026] In the circumferential direction, the relative positions of the six third protrusions 103 can be set as needed; preferably, the six first protrusions 101 are evenly distributed in the circumferential direction of the reference circle, and the central angle between two adjacent first protrusions 101 is 60°; or, the six first protrusions 101 are divided into two groups, and the central angle between any two of the three first protrusions 101 in each group is 120°.

[0027] It should be noted that the reference circle is not an actual structure existing on the mold; each reference circle corresponds to one texture unit 100. Within the same texture section, the texture units 100 are arranged as follows: Around a certain texture unit 100, i.e., around the reference circle of that texture unit 100, six texture units 100 are adjacent and evenly distributed. Any two adjacent texture units 100 have an overlapping, shared area. This overlapping area contains one first protrusion 101 and two third protrusions 103, with the two third protrusions 103 located on either side of the first protrusion 101 in the overlapping area. One first protrusion 101 and two third protrusions 103 in the overlapping area are shared by the two texture units 100 and are simultaneously components of both texture units 100. For the same texture area, the reference circle radius R is equal, and the value of the reference circle radius R is in the range of 0.55-0.85mm, preferably 0.67-0.79mm; the center distance W of the reference circle of any two adjacent texture units 100 is 1.25-1.5 times the reference circle radius R, preferably 1.25-1.35 times; the first protrusion 101, the second protrusion 102 and the third protrusion 103 are staggered with the groove 201 and evenly distributed; at the same time, it is also ensured that the two texture units 100 have overlapping areas, providing an appropriate distribution area for the second protrusion 102.

[0028] For example, such as Figure 4As shown, six second texture units 100b are adjacent to the first texture unit 100a (only two second texture units 100b are shown in the figure). The first texture unit 100a and the second texture units 100b have identical structures; they are distinguished here for the sake of illustrative purposes. The six second texture units 100b are evenly distributed circumferentially around the reference circle of the first texture unit 100a. Each first texture unit 100a and each second texture unit 100b has an overlapping area, which includes a first protrusion 101 and two third protrusions 103. The combination of a first protrusion 101, two third protrusions 103, and a groove 201 within an overlapping area is referred to below as a shared texture area. The shared texture area is a component of both the first texture unit 100a and the second texture unit 100b. It can also be understood that when the texture units 100 are arranged, the first protrusion 101 and the two third protrusions 103 of the first texture unit 100a completely overlap with the first protrusion 101 and the two third protrusions 103 of the second texture unit 100b, respectively. As far as the texture unit as a whole is concerned, the first protrusion 101 and the two third protrusions 103 in the shared texture area are components of both the first texture unit 100a and the second texture unit 100b.

[0029] It should be noted that the texture units 100 at the edge of the texture section may also be incomplete, such as the first protrusion 101, the second protrusion 102, and the third protrusion 103 being missing in whole or in part; however, for the entire texture section, each texture unit 100 is distributed according to a set arrangement rule.

[0030] like Figure 1-8 As shown, the third protrusion 103 is shared by three texture units 100 with identical structures. The third protrusion 103 has three sets of identical fifth outer surfaces 108, and the three sets of fifth outer surfaces 108 are connected in sequence to form the outer peripheral surface of the third protrusion 103. One set of fifth outer surfaces 108 can coincide with the next set of fifth outer surfaces 108 after rotating 120° around the rotation center of the third protrusion 103.

[0031] Each group of fifth outer surface 108 may include one or two or more planes and / or curved surfaces. For example, as shown... Figure 1 ,picture, Figure 5 and Figure 7 As shown, the fifth outer surface 108 is composed of a curved surface, and three sets of identical fifth outer surfaces 108 form a third convex portion 103 with a cross-section resembling an equilateral triangle. If the fifth outer surface 108 is composed of a plane, the three sets of identical fifth outer surfaces 108 form a third convex portion 103 with a cross-section resembling an equilateral triangle.

[0032] Alternatively, the fifth outer surface 108 can be composed of two curved surfaces or planes, forming a third convex portion 103 with a cross-section of a regular hexagon or similar regular hexagon. Understandably, the outer surface of the third convex portion 103 can also be a cylindrical surface, which can be understood as the fifth outer surface 108 being a cylindrical surface with a central angle of 120°.

[0033] For any given first protrusion 101, it is shared by two adjacent texture units 100, so that... Figure 4 In the illustrated embodiment, the radial inner end and outer end of the first protrusion 101 of the first texture unit 100a are respectively the radial outer end and inner end of the first protrusion 101 in the second texture unit 100b; therefore, within the same texture unit 100, two shared texture areas with a central angle of 180° can coincide after translation along the line connecting the centers of the reference circles of the two texture units 100 where one of the shared texture areas is located. For example, the first protrusion 101 can be as follows: Figure 2 , Figure 4 and Figure 7 As shown, the first protrusion 101 has a first outer surface 104 and a third outer surface 106 at its radially upward ends, respectively. The first outer surface 104 and the third outer surface 106 are connected by two symmetrically arranged second outer surfaces 105, so that the cross-section of the first protrusion 101 is rectangular or similar to a rectangle. The first outer surface 104 and the third outer surface 106 can be planes, curved surfaces, or other arbitrary combinations of surfaces.

[0034] The second protrusion 102 has a plurality of fourth outer surfaces 107, the number of which can be as follows: Figure 1 , Figure 5 The six fourth outer surfaces 107 shown correspond to the positions of the six first protrusions 101, respectively; or, the number of fourth outer surfaces 107 can be as follows: Figure 7 The three shown correspond to the positions of the three fourth outer surfaces 107 and the three spaced-apart first protrusions 101, respectively.

[0035] The two side walls of the groove 201 are the sides of the first protrusion 101, the third protrusion 103, and the second protrusion 102; preferably, the trajectory of the groove 201 is arc-shaped, and the outer sides of the first protrusion 101, the second protrusion 102, and the third protrusion 103 are all arc surfaces. For example, when the cross-section of the groove 201 is V-shaped, the first outer side 104, the third outer side 106, the second outer side 105, the fifth outer side 108, and the fourth outer side 107 are all conical surfaces; when the cross-section of the groove 201 is U-shaped, the first outer side 104, the third outer side 106, the second outer side 105, the fifth outer side 108, and the fourth outer side 107 are all arc surfaces (or cylindrical surfaces).

[0036] Preferred, such as Figure 2As shown, in the first protrusion 101, the first outer surface 104 and the third outer surface 106 are convex arc surfaces, and the two second outer surfaces 105 are concave arc surfaces; the fifth outer surface 108 is a convex arc surface; and the fourth outer surface 107 is a concave arc surface. The alternating convex and concave arrangement of the outer surfaces of adjacent protrusions simplifies the mold processing technology, allowing the tool to complete the processing of two adjacent outer surfaces in a single cut along an arc-shaped trajectory.

[0037] Furthermore, the radius of the groove 201 forming the fifth outer surface 108 is equal to the radius of the reference circle.

[0038] The grooves 201 and protrusions are evenly distributed on the vulcanization cavity surface corresponding to the texture unit 100, which not only improves the appearance of the tire, but also makes the tire produced by the mold have a good light absorption effect, good blackening effect and high appearance consistency at different angles; it also helps to ensure the consistency of the cross-sectional size of the grooves 201 in the texture part, which is convenient for mold processing and production.

[0039] Please refer to Figures 1-4 This is a first embodiment of a tire mold provided by the present invention. In this embodiment, the texture unit 100 has six first protrusions 101, six third protrusions 103, and one second protrusion 102; the trajectory of the groove 201 is an arc, and the radius is equal to the radius of the reference circle of the texture unit 100. The trajectory of the groove 201 coincides with the reference circle of one of the texture units 100.

[0040] The six first protrusions 101 have the same cross-sectional shape and are distributed on the same circumference. The six first protrusions 101 and the six third protrusions 103 are arranged alternately in the circumferential direction and are evenly distributed. The first protrusions 101, the third protrusions 103 and the second protrusions 102 are all located inside the reference circle.

[0041] The first protrusion 101 has an outwardly convex first outer surface 104 and a third outer surface 106, as well as two inwardly concave second outer surfaces 105. The first protrusion 101 has an axisymmetric structure, and its axis of symmetry is the line connecting the centers of the reference circles of the two texture units 100 that share the first protrusion 101. The two second outer surfaces 105 are symmetrically arranged on both sides of the first outer surface 104 and the third outer surface 106 in the circumferential direction. The first outer surface 104 and the third outer surface 106 are also mirror images of each other, so that the cross-section of the first protrusion 101 is similar to a rectangle.

[0042] The second convex part 102 is a centrally symmetrical structure with six concave fourth outer surfaces 107, the center of symmetry being the center of the reference circle.

[0043] The third protrusion 103 has three outwardly convex fifth outer surfaces 108, with a cross-section resembling an equilateral triangle.

[0044] The groove 201 is a V-shaped groove, and its trajectory is an arc. The first outer surface 104, the third outer surface 106, and the fifth outer surface 108 correspond to the inner wall of the groove 201 and are convex conical surfaces; the second outer surface 105 and the fourth outer surface 107 correspond to the outer wall of the groove 201 and are concave conical surfaces. The fourth outer surface 107, which is adjacent and opposite to the third outer surface 106 or the first outer surface 104, is coaxial; the fifth outer surface 108, which is opposite to the second outer surface 105, is coaxial.

[0045] The distance between the outer side of the protrusion and the center section of the groove 201 forming the outer side is set as the center section distance of the outer side; in this embodiment, the center section distances of the first outer side 104, the second outer side 105, the third outer side 106, the fourth outer side 107 and the fifth outer side 108 are equal.

[0046] During mold processing, the cutting tool uses the reference circle as the processing path to process the groove 201, which can form the convex fifth outer side 108, the first outer side 104, the third outer side 106, and the concave second outer side 105 and the fourth outer side 107. The processing path is simple and easy to plan.

[0047] Please refer to Figure 5 and Figure 6 This is a second embodiment of a tire mold provided by the present invention. The difference between this embodiment and the first embodiment is that although the trajectory of the groove 201 is still an arc, the trajectory of a part of the groove 201 coincides with the reference circle, and the trajectory radius of another part of the groove 201 is greater than the radius of the reference circle.

[0048] The trajectory radius of the groove 201 forming the first outer surface 104, the third outer surface 106 and the fourth outer surface 107 is greater than the radius of the reference circle, and the difference in radius is equal to half the width of the groove 201; the trajectory radius of the groove 201 forming the second outer surface 105 and the fifth outer surface 108 is equal to the radius of the reference circle and coincides with the reference circle of one of the texture units 100.

[0049] Although the processing path planning of the groove 201 in the same texture unit 100 is more complex than that of the first embodiment, the first protrusion 101 extends radially to both the inner and outer sides of the third protrusion 103, and the groove 201 in the texture unit 100 is more evenly distributed with the first protrusion 101, the second protrusion 102 and the third protrusion 103, which is more aesthetically pleasing.

[0050] Please refer to Figure 7 and Figure 8This is a third embodiment of a tire mold provided by the present invention. Unlike the first embodiment, the six first protrusions 101 in the same texture unit 100 are divided into two groups, each group containing three first protrusions 101. One group's three first protrusions 101 extend radially outward from a reference circle, while the other group's three first protrusions 101 are located inside the reference circle. This arrangement ensures that one group of first protrusions 101 is close to the second protrusion 102, while the other group is relatively far from the second protrusion 102. The two groups of first protrusions 101 are spaced apart circumferentially, meaning the central angle between two adjacent first protrusions 101 within the same group is 120°. The second protrusion 102 has three concave fourth outer surfaces 107, the positions of which correspond to the positions of the first protrusions 101 close to the second protrusion 102.

[0051] Furthermore, the trajectory radius of the groove 201 forming the first outer surface 104, the second outer surface 105, and the fifth outer surface 108 is equal to the radius of the reference circle, and its trajectory coincides with the reference circle; the trajectory radius of the groove 201 forming the third outer surface 106 and the fourth outer surface 107 is smaller than the radius of the reference circle.

[0052] The texture processing path is simple and easy to operate. Compared with the second embodiment, the uniformity of the distribution of the groove 201 and the first protrusion 101, the second protrusion 102 and the third protrusion 103 is further optimized.

[0053] A tire is vulcanized using the aforementioned tire mold. Because the grooves 201 of the tire mold texture section are interconnected and have flowability, it is convenient to increase the rubber filling speed during tire vulcanization, which is beneficial to the formation of the texture. The tire's outer surface has dense undulations and strong light absorption, resulting in high appearance consistency and good performance.

[0054] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A tire mold, wherein a textured portion is provided on the vulcanizing cavity surface of the tire mold for forming the texture of a tire; the textured portion is provided with grooves (201) that divide the vulcanizing cavity surface into a plurality of protrusions; characterized in that, The protrusions include a first protrusion (101), a second protrusion (102), and a third protrusion (103). Each second protrusion (102) is surrounded by six first protrusions (101) and six third protrusions (103). The six third protrusions (103) are evenly distributed on the same circumference. The second protrusion (102) is located in the middle of the circumference where the third protrusions (103) are distributed. The six first protrusions (101) and the six third protrusions (103) are arranged alternately in the circumferential direction. The second protrusion (102) and the six first protrusions (101) and six third protrusions (103) surrounding the second protrusion (102) together constitute a texture unit (100); the texture units (100) are arranged in the texture section as follows: six texture units (100) are adjacent and evenly distributed in the circumferential direction of each texture unit (100), two adjacent texture units (100) have an overlapping area, the overlapping area has a first protrusion (101) and a third protrusion (103) located on both sides of the first protrusion (101) and adjacent to it, the first protrusion (101) and the two third protrusions (103) in the overlapping area are shared by the two texture units (100).

2. The tire mold according to claim 1, characterized in that, The groove width L of the groove (201) is 0.10-0.25mm; And / or, the depth h of the groove (201) is 0.25-0.45 mm; And / or, the cross-section of the groove (201) is V-shaped, and the angle α between the groove wall of the groove (201) and the vulcanized cavity surface is 93°-105°.

3. A tire mold according to claim 1 or 2, characterized in that, The trajectory of the groove (201) is an arc shape, and the circumference of the groove (201) forming the outer side of the third protrusion (103) is the reference circle of the texture unit (100).

4. A tire mold according to claim 3, characterized in that, The radius R of the reference circle of the texture unit (100) is 0.55-0.85mm, and the center distance between the reference circles of two adjacent texture units (100) is 1.25-1.5 times the radius R of the reference circle.

5. A tire mold according to claim 4, characterized in that, The radius R of the reference circle of the texture unit (100) is 0.67-0.79 mm; And / or, the distance between the center of the reference circle of two adjacent texture units (100) is 1.25-1.35 times the radius R of the reference circle.

6. A tire mold according to claim 3, characterized in that, In the same texture unit (100), six of the first protrusions (101) are evenly distributed in the circumferential direction.

7. A tire mold according to claim 6, characterized in that, In the same texture unit (100), the six first protrusions (101) are divided into two groups, and the two groups of first protrusions (101) are distributed on two different circumferences; Alternatively, in the same texture unit (100), six of the first protrusions (101) are distributed on the same circumference.

8. A tire mold according to claim 3, characterized in that, The first protrusion (101) is an axisymmetric structure, and its axis of symmetry is the line connecting the centers of the reference circles of the two texture units (100) that share the first protrusion (101); the peripheral surface of the first protrusion (101) includes a first outer surface (104), a third outer surface (106) and two second outer surfaces (105), the first outer surface (104) and the third outer surface (106) are respectively located at the radial ends of the first protrusion (101) and are connected by two symmetrically arranged second outer surfaces (105); the first outer surface (104) and the third outer surface (106) are convex arc surfaces, and the second outer surface (105) is a concave arc surface; The third protrusion (103) has three sets of fifth outer surfaces (108), which are connected in sequence to form a ring; the fifth outer surface (108) is an outwardly convex arc surface; The outer peripheral surface of the second protrusion (102) includes three or six fourth outer surfaces (107), which are concave arc surfaces.

9. A tire mold according to claim 8, characterized in that, The fourth outer surface (107) is coaxial with the third outer surface (106) or the first outer surface (104) that are opposite to each other; And / or, the fifth outer surface (108) is coaxial with the second outer surface (105) and is disposed opposite to each other; And / or, the center cross-sectional distances of the first outer surface (104), the second outer surface (105), the third outer surface (106), the fourth outer surface (107), and the fifth outer surface (108) are equal; And / or, the second protrusion (102) is a centrally symmetrical structure, the center of which is the center of the reference circle of the texture unit (100).

10. A tire, characterized in that, The tire is vulcanized using the tire mold described in any one of claims 1-9.

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