Pattern block and tire mold

Abstract

The utility model belongs to the technical field of tire vulcanization equipment, and discloses a pattern block and a tire mold, the pattern block comprises a base body, the base body is provided with a cavity surface and a back surface opposite to the cavity surface, a plurality of exhaust hole groups are formed in the base body, each exhaust hole group is provided with at least one exhaust hole, and the exhaust hole groups are communicated with the cavity surface. The two ends of each exhaust hole are provided with an inner hole opening and an outer hole opening respectively, the outer hole openings are located in the back face, pattern ribs and multiple sections of exhaust grooves are arranged on the cavity face, at least part of the exhaust grooves are formed in the extending direction of the pattern ribs at intervals, and each section of exhaust groove corresponds to one exhaust hole set. The groove bottom of each section of exhaust groove is communicated with the inner hole opening of the corresponding exhaust hole, and the width of the exhaust groove is smaller than the diameter of the exhaust hole, so that the length of the exhaust groove is shortened, the volume of an air containing space formed in the exhaust groove is reduced, the exhaust pressure is improved, and the exhaust efficiency and the exhaust effect are improved; and the forming quality of the tire is ensured.

Description

Technical Field

[0001] This application belongs to the technical field of tire vulcanization equipment, specifically relating to a tread block and a tire mold. Background Technology

[0002] During the vulcanization of tires, the gas inside the tire blank and between the tire blank and the tread blocks needs to be expelled during the mold closing process to ensure the tire molding quality and performance.

[0003] Currently, in order to expel the gas inside the tire blank and between the tire blank and the tread block during the tire mold closing process, vent holes that penetrate the tread block are usually set on the tread block. Although this can expel the gas inside the tire blank and between the tire blank and the tread block, the tire rubber also enters the vent holes during the tire vulcanization process, forming rubber fibers. This necessitates the removal of rubber fibers from the molded tire, thereby reducing tire production efficiency and increasing tire production costs.

[0004] To avoid the formation of rubber fibers and improve tire production efficiency while reducing production costs, the applicant proposed two solutions. One solution involves installing a spring vent sleeve inside the vent hole. The spring vent sleeve includes a sleeve housing inside the vent hole, a core housing inside the sleeve housing, and a spring positioned between the sleeve housing and the core housing. A venting channel is formed between the core housing and the sleeve housing. During venting, the core housing compresses the spring under the pressure of the gas, causing the core housing to avoid contact with the end hole of the sleeve housing. This allows the gas to enter the venting channel through the end hole of the sleeve housing and ultimately exit through the vent hole. After venting is complete, the spring returns to its original shape and applies pressure to the sleeve housing. The end holes are sealed to prevent tire rubber from entering the vent holes and forming rubber fibers. However, as the tire mold is used for a longer period of time, tire rubber inevitably enters the venting channel, causing the tire rubber to stick to the spring and leading to the failure of the spring vent sleeve. Once the spring vent sleeve fails, it needs to be replaced. If it is not replaced in time, the vulcanized tire will become a defective product or be scrapped, thus increasing the cost of using the tire mold. At the same time, the complex structure of the spring vent sleeve and the high skill requirements of the installers lead to high production costs and low production efficiency for the tire mold.

[0005] Another method involves setting venting slots and venting holes connected to the venting slots on the tread blocks. The venting slots extend continuously along the circumference of the tread blocks. When gas from inside the tire blank and between the tire blank and the tread blocks is discharged from the tire mold, the gas first enters the venting slots and then enters the venting holes through the venting slots, so that the gas is discharged through the venting holes. The width of the venting slots is smaller than the diameter of the venting holes, which prevents the tire rubber from entering the venting slots, thus avoiding the occurrence of rubber fibers in the molded tire. However, since the venting slots extend continuously along the circumference of the tread blocks, this affects the venting pressure, thereby affecting the venting efficiency and venting effect, and consequently affecting the molding quality of the tire. Utility Model Content

[0006] This application provides a patterned block to solve at least one of the above-mentioned technical problems.

[0007] The technical solution adopted in this application is as follows:

[0008] A patterned block includes a base having a cavity surface and a back surface opposite to the cavity surface. The base has multiple sets of venting holes inside, each set having at least one venting hole. Each venting hole has an inner opening and an outer opening at both ends, with the outer opening located on the back surface. The cavity surface has a patterned rib and multiple venting grooves. At least some of the venting grooves are spaced apart along the extension direction of the patterned rib. Each venting groove corresponds to a set of venting holes, and the bottom of each venting groove communicates with the inner opening of its corresponding venting hole. The width of the venting groove is smaller than the diameter of the venting hole.

[0009] By adopting the above technical solution, when the tire mold with the tread blocks of this application is vented during the mold closing process, the gas first enters multiple venting grooves, and the gas in the multiple venting grooves is then discharged from the tire mold through the venting holes to complete the venting of the tire mold.

[0010] Because the width of the venting groove is smaller than the diameter of the venting hole, the tire rubber cannot enter the venting groove to form rubber fibers during the tire vulcanization process. This avoids the occurrence of rubber fibers in the molded tire, thus avoiding the need to remove rubber fibers from the molded tire, thereby improving tire production efficiency and reducing tire production costs.

[0011] Since at least some of the exhaust channels are spaced apart along the extension direction of the rib, the length of the exhaust channels is shortened compared to the prior art where the exhaust channels extend continuously along the circumference of the rib. This reduces the volume of the air-containing space formed inside the exhaust channels, thereby increasing the exhaust pressure, exhaust efficiency, and exhaust effect, thus ensuring the tire forming quality.

[0012] In addition, compared with the prior art solution of setting a spring air hole sleeve in the exhaust hole, the tread block in this application does not require the use of auxiliary parts, thereby reducing the use cost of the tire mold with the tread block installed, while reducing the production cost of the tire mold with the tread block installed and improving the production efficiency of the tire mold with the tread block installed.

[0013] Optionally, the exhaust port group includes a first exhaust port group having at least two exhaust ports, wherein the distance between two adjacent exhaust ports in the first exhaust port group is less than 10 mm.

[0014] By adopting the above technical solution, since the first vent hole group has at least two vent holes, the number of vent holes communicating with each vent groove is increased, thereby improving the venting efficiency and effect of the tire mold, and further ensuring the tire molding quality. Furthermore, since the distance between two adjacent vent holes in the first vent hole group is less than 10mm, the length of the vent groove corresponding to the first vent hole group can be shortened to ensure venting pressure, thus further improving the venting efficiency and effect of the tire mold, and further ensuring the tire molding quality.

[0015] Optionally, the exhaust groove includes a first exhaust groove corresponding to the first exhaust hole group, and the length of the first exhaust groove is greater than the sum of the circumferences of the plurality of exhaust holes in the first exhaust hole group.

[0016] By adopting the above technical solution, since the length of the first vent groove is greater than the sum of the circumferences of multiple vent holes in the first vent hole group, the proportion of the first vent groove on the cavity surface can be increased to ensure the venting area on the cavity surface, thereby further improving the venting efficiency and venting effect of the tire mold, and further ensuring the forming quality of the tire.

[0017] Optionally, the first exhaust groove passes through the center of the plurality of exhaust holes corresponding to it;

[0018] And / or, both ends of the first exhaust groove extend to the outside of the plurality of exhaust holes corresponding to it.

[0019] By adopting the above technical solution, since the first exhaust groove passes through the center of its corresponding multiple exhaust holes, the communication area between the first exhaust groove and its corresponding exhaust holes is ensured, thereby ensuring the exhaust efficiency and exhaust effect of the tire mold, and further ensuring the forming quality of the tire.

[0020] Since both ends of the first venting groove extend to the outside of its corresponding multiple venting holes, on the one hand, the proportion of the first venting groove on the cavity surface is further increased, thereby further increasing the venting area on the cavity surface. On the other hand, the connection area between the first venting groove and its corresponding venting holes is further guaranteed, thereby further improving the venting efficiency and venting effect of the tire mold, and thus further guaranteeing the forming quality of the tire.

[0021] Optionally, the exhaust port group further includes a second exhaust port group having one of the exhaust ports, wherein the distance between the exhaust port in the second exhaust port group and the adjacent exhaust port is greater than 10 mm.

[0022] By adopting the above technical solution, since the distance between the exhaust hole and the adjacent exhaust hole in the second exhaust hole group is greater than 10mm, the length of the exhaust groove is reduced. This means that the length of the exhaust groove corresponding to the second exhaust hole group only needs to be set for one exhaust hole to ensure exhaust pressure, thereby further ensuring exhaust efficiency and exhaust effect, and further ensuring the tire forming quality.

[0023] Optionally, the exhaust groove further includes a second exhaust groove corresponding to the second exhaust hole group, wherein the length of the second exhaust groove is greater than the circumference of the exhaust hole.

[0024] By adopting the above technical solution, since the length of the second venting groove is greater than the circumference of the venting hole, the proportion of the second venting groove on the cavity surface can be increased to ensure the venting area on the cavity surface, thereby further improving the venting efficiency and venting effect of the tire mold, and further ensuring the forming quality of the tire.

[0025] Optionally, the second exhaust groove passes through the center of its corresponding exhaust hole;

[0026] And / or, both ends of the second exhaust groove extend to the outside of the exhaust hole corresponding to it.

[0027] By adopting the above technical solution, since the second exhaust groove passes through the center of its corresponding multiple exhaust holes, the communication area between the second exhaust groove and its corresponding exhaust holes is ensured, thereby ensuring the exhaust efficiency and exhaust effect of the tire mold, and further ensuring the forming quality of the tire.

[0028] Since both ends of the second venting groove extend to the outside of its corresponding venting hole, on the one hand, the proportion of the second venting groove on the cavity surface is further increased, so as to further increase the venting area on the cavity surface. On the other hand, the connection area between the second venting groove and its corresponding venting hole is further guaranteed, thereby further improving the venting efficiency and venting effect of the tire mold, and thus further guaranteeing the forming quality of the tire.

[0029] Optionally, the cavity surface is provided with a group of exhaust micropores corresponding to the exhaust hole. Each group of exhaust micropores includes at least one exhaust micropore that communicates with the exhaust hole corresponding to itself. The diameter of the exhaust micropore is smaller than the diameter of the exhaust hole.

[0030] By adopting the above technical solution, since the cavity surface is provided with a group of venting micro-holes corresponding to the venting holes, each group of venting micro-holes includes at least one venting micro-hole connected to its corresponding venting hole. This allows the gas inside the tire mold to enter the venting hole through the venting micro-holes, thereby increasing the venting area on the cavity surface and further improving the venting efficiency and venting effect of the tire mold, thus further ensuring the molding quality of the tire. Furthermore, since the diameter of the venting micro-holes is smaller than that of the venting holes, the tire rubber material cannot enter the venting micro-holes, thus avoiding the occurrence of rubber fibers in the molded tire.

[0031] Optionally, the diameter D1 of the vent hole satisfies: 2mm≤D1≤6mm;

[0032] And / or, the width W of the exhaust groove satisfies: 0.02mm≤W≤0.05mm;

[0033] And / or, the depth H of the exhaust groove satisfies: 1mm≤H≤5mm;

[0034] And / or, the diameter D2 of the exhaust micropore satisfies: 0.01mm≤D2≤0.05mm.

[0035] By adopting the above technical solution, since the diameter D1 of the vent hole satisfies: 2mm≤D1≤6mm, the venting efficiency and venting effect of the tire mold are guaranteed on the one hand, and the structural strength of the tread block is guaranteed on the other hand.

[0036] Since the width W of the venting groove satisfies: 0.02mm≤W≤0.05mm, the venting area of ​​the cavity surface is guaranteed on the one hand to ensure the venting efficiency and effect of the tire mold, and on the other hand, the tire rubber material is prevented from entering the venting groove to avoid the tire having rubber fibers after molding.

[0037] Since the depth H of the venting groove satisfies 1mm≤H≤5mm, the molding difficulty of the venting groove is reduced, thereby reducing the production difficulty of the tread block and improving the production efficiency of the tread block. On the other hand, the space for gas to be contained inside the venting groove is kept within an optimal range to ensure the venting pressure of the tire mold, thereby ensuring the venting efficiency and venting effect of the tire mold.

[0038] Since the diameter D2 of the venting micropores satisfies: 0.01mm≤D2≤0.05mm, the venting area of ​​the cavity surface is guaranteed on the one hand to ensure the venting efficiency and venting effect of the tire mold, and on the other hand, the tire rubber material is prevented from entering the venting groove to avoid the tire having rubber fibers after molding.

[0039] This application also discloses a tire mold to reduce the production and usage costs of tire molds, improve the production efficiency of tire molds, and ensure the forming quality of tires.

[0040] A tire mold comprising tread blocks as described above.

[0041] By adopting the above technical solution, since the tire mold in this application includes the aforementioned tread blocks, the production cost of the tire mold is reduced and the production efficiency of the tire mold is improved. At the same time, the exhaust efficiency and exhaust effect of the tire mold are improved, thereby ensuring the forming quality of the tire.

[0042] Due to the adoption of the above technical solution, the beneficial effects achieved by this application are as follows:

[0043] 1. The patterned block in this application includes a base, which has a cavity surface and a back surface opposite to the cavity surface. Multiple sets of venting holes are provided inside the base, each set having at least one venting hole. Each venting hole has an inner opening and an outer opening at both ends, with the outer opening located on the back surface. The cavity surface is provided with a patterned rib and multiple venting grooves. At least some of the venting grooves are spaced apart along the extension direction of the patterned rib. Each venting groove corresponds to one set of venting holes, and the bottom of each venting groove communicates with the inner opening of its corresponding venting hole. The width of the venting groove is smaller than the diameter of the venting hole. Therefore, compared to the prior art where the venting groove is along the circumference of the patterned rib... In the case of a continuously extending design, the length of the exhaust groove is shortened, thereby reducing the volume of the air-containing space formed inside the exhaust groove, which increases the exhaust pressure, thereby improving the exhaust efficiency and exhaust effect to ensure the tire molding quality. Compared with the prior art solution of setting a spring air hole sleeve in the exhaust hole, the tread block in this application does not require the use of auxiliary parts, thereby reducing the use cost of the tire mold with the tread block installed in this application, while reducing the production cost of the tire mold with the tread block installed in this application and improving the production efficiency of the tire mold with the tread block installed in this application.

[0044] 2. The venting hole group in this application includes a first venting hole group with at least two venting holes, thereby increasing the number of venting holes communicating with each venting groove to improve the venting efficiency and venting effect of the tire mold, and further ensuring the forming quality of the tire. The distance between two adjacent venting holes in the first venting hole group is less than 10mm, which can shorten the length of the venting groove corresponding to the first venting hole group to ensure venting pressure, thereby further improving the venting efficiency and venting effect of the tire mold, and further ensuring the forming quality of the tire.

[0045] 3. The venting groove in this application includes a first venting groove provided corresponding to the first venting hole. The length of the first venting groove is greater than the sum of the circumferences of the multiple venting holes in the first venting hole group, thereby increasing the proportion of the first venting groove on the cavity surface to ensure the venting area on the cavity surface, thereby further improving the venting efficiency and venting effect of the tire mold, and further ensuring the forming quality of the tire. Attached Figure Description

[0046] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0047] Figure 1 This is a schematic diagram of the structure of the patterned block according to one embodiment of this application, wherein the dashed line in the figure indicates one of the exhaust holes;

[0048] Figure 2 This is a schematic diagram of the patterned block from another perspective in one embodiment of this application;

[0049] Figure 3 This is a partial structural cross-sectional view of the patterned block described in one embodiment of this application, mainly showing the relationship between the exhaust groove and the exhaust hole;

[0050] Figure 4 This is a schematic diagram of the first exhaust groove and the first exhaust hole group in one embodiment of this application;

[0051] Figure 5 This is a partial structural cross-sectional view of the patterned block in one embodiment of this application, mainly showing the relationship between the first exhaust groove and the first exhaust hole group;

[0052] Figure 6 This is a schematic diagram of the second exhaust groove and the second exhaust hole group in one embodiment of this application;

[0053] Figure 7 This is a partial structural cross-sectional view of the patterned block in one embodiment of this application, mainly showing the relationship between the second exhaust groove and the second exhaust hole group.

[0054] Figure label:

[0055] 1. Substrate; 11. Cavity surface; 12. Back side; 13. Vent hole; 14. Vent groove; 141. Side rib groove; 142. Side protrusion groove; 15. Vent micropore; 2. Rib; 21. Rib body; 211. Side rib body; 22. Protrusion rib; 221. Side protrusion rib. Detailed Implementation

[0056] To more clearly illustrate the overall concept of this application, a detailed explanation is provided below with reference to the accompanying drawings.

[0057] Many specific details are set forth in the following description in order to provide a full understanding of this application. However, this application may also be implemented in other ways different from those described herein. Therefore, the scope of protection of this application is not limited to the specific embodiments disclosed below.

[0058] Furthermore, it should be understood in the description of this application that the terms "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0059] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0060] In this application, unless otherwise expressly specified and limited, the "above" or "below" of the second feature can mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. In the description of this specification, references to terms such as "implementation," "example," "a particular embodiment," "example," or "specific example," etc., indicate that the specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described can be combined in any suitable manner in one or more embodiments or examples.

[0061] Reference Figures 1 to 7 A patterned block is disclosed, comprising a base 1, the base 1 having a cavity surface 11 and a back surface 12 opposite to the cavity surface 11. The interior of the base 1 is provided with multiple sets of vent holes, each set of vent holes having at least one vent hole 13. Each vent hole 13 has an inner opening and an outer opening at both ends, with the outer opening located on the back surface 12. The cavity surface 11 is provided with a patterned rib 2 and multiple vent grooves 14. At least some of the vent grooves 14 are spaced apart along the extension direction of the patterned rib 2. Each vent groove 14 corresponds to a set of vent holes, and the bottom of each vent groove 14 is connected to the inner opening of its corresponding vent hole 13. The width of the vent groove 14 is smaller than the diameter of the vent hole 13.

[0062] It is understandable that the vent hole 13 is a blind hole, and one end of the vent hole 13 penetrates the back side 12 of the substrate 1, while the other end of the vent hole 13 is connected to the side of the cavity surface 11 of the substrate 1 through the vent groove 14.

[0063] When the tire mold equipped with the tread blocks of this application is vented during the mold closing process, the gas first enters multiple venting grooves 14, and the gas entering the multiple venting grooves 14 is then discharged from the tire mold through the venting hole 13 to complete the venting of the tire mold.

[0064] Since the width of the venting groove 14 is smaller than the diameter of the venting hole 13, the tire rubber cannot enter the venting groove 14 to form rubber fibers during the tire vulcanization process. This avoids the occurrence of rubber fibers in the molded tire, thus avoiding the need to remove rubber fibers from the molded tire, thereby improving tire production efficiency and reducing tire production costs.

[0065] Since at least some of the exhaust grooves 14 are spaced apart along the extension direction of the rib 2, the length of the exhaust grooves 14 is shortened compared to the prior art where the exhaust grooves 14 extend continuously along the circumference of the rib 2. This reduces the volume of the air-containing space formed inside the exhaust grooves 14, thereby increasing the exhaust pressure, and thus improving the exhaust efficiency and exhaust effect, so as to ensure the tire forming quality.

[0066] In addition, compared with the prior art solution of setting a spring air hole sleeve in the exhaust hole 13, the tread block in this application does not require the use of auxiliary parts, thereby reducing the use cost of the tire mold with the tread block installed, while reducing the production cost of the tire mold with the tread block installed and improving the production efficiency of the tire mold with the tread block installed.

[0067] Preferably, some of the venting grooves 14 are spaced apart along the circumference of the rib 2, while the remaining venting grooves 14 are located at the center of the space enclosed by the rib 2, so as to improve the venting efficiency and venting effect of the tire mold.

[0068] This application does not specifically limit the structure of the vent hole 13. Preferably, the vent hole 13 is a hole with a circular cross-sectional shape to reduce the processing difficulty of the vent hole 13 and reduce the manufacturing cost of the pattern block. Furthermore, the diameter of the vent hole 13 remains constant along the axial direction of the vent hole 13. In other embodiments, the vent hole 13 may also be a hole with a cross-sectional shape of other shapes, such as square, elliptical, etc., or the vent hole 13 may be a hole whose diameter gradually increases in the direction away from the vent groove 14.

[0069] In a preferred embodiment, refer to Figure 2 , Figure 4 and Figure 5 The exhaust port group includes a first exhaust port group having at least two exhaust ports 13, wherein the distance between two adjacent exhaust ports 13 in the first exhaust port group is less than 10 mm.

[0070] Since the first venting hole group has at least two venting holes 13, the number of venting holes 13 communicating with each venting groove 14 is increased, thereby improving the venting efficiency and effect of the tire mold, and further ensuring the tire molding quality. Furthermore, since the distance between two adjacent venting holes 13 in the first venting hole group is less than 10mm, the length of the venting groove 14 corresponding to the first venting hole group can be shortened to ensure venting pressure, thus further improving the venting efficiency and effect of the tire mold, and further ensuring the tire molding quality.

[0071] Preferably, each first exhaust port group has two exhaust ports 13 to shorten the length of the exhaust groove 14 to a certain extent, so as to ensure exhaust pressure.

[0072] Furthermore, refer to Figure 2 , Figure 4 and Figure 5 The exhaust groove 14 includes a first exhaust groove corresponding to the first exhaust hole group. The length of the first exhaust groove is greater than the sum of the circumferences of the multiple exhaust holes 13 in the first exhaust hole group. This can increase the proportion of the first exhaust groove on the cavity surface 11, so as to ensure the exhaust area on the cavity surface 11, thereby further improving the exhaust efficiency and exhaust effect of the tire mold, and further ensuring the forming quality of the tire.

[0073] Of course, in other embodiments, the length of the first exhaust groove may be less than the sum of the circumferences of the multiple exhaust holes 13 in the first exhaust hole group, as long as it can be ensured that the first exhaust groove can communicate with the multiple exhaust holes 13 in the first exhaust hole group.

[0074] Furthermore, refer to Figure 2 , Figure 4 and Figure 5 The first exhaust groove passes through the center of its corresponding multiple exhaust holes 13.

[0075] It is understandable that the center position of the first exhaust groove in the width direction coincides with the center point of its corresponding exhaust hole 13, that is, the central axis of the exhaust hole 13 corresponding to the first exhaust groove passes through the center position in the width direction of the first exhaust groove.

[0076] Since the first exhaust groove passes through the center of its corresponding multiple exhaust holes 13, the communication area between the first exhaust groove and its corresponding exhaust holes 13 is ensured, thereby ensuring the exhaust efficiency and exhaust effect of the tire mold, and further ensuring the forming quality of the tire.

[0077] Of course, in other embodiments, the first exhaust groove may also be located on the side of its corresponding exhaust hole 13, as long as the first exhaust groove can be connected to its corresponding exhaust hole 13.

[0078] Furthermore, refer to Figure 2 , Figure 4 and Figure 5 Both ends of the first exhaust groove extend to the outside of its corresponding multiple exhaust holes 13.

[0079] It is understandable that multiple exhaust holes 13 in the first exhaust hole group are located at the non-ends of the first exhaust groove.

[0080] Since both ends of the first exhaust groove extend to the outside of the multiple exhaust holes 13 corresponding to it, on the one hand, the proportion of the first exhaust groove on the cavity surface 11 is further increased, so as to further increase the exhaust area on the cavity surface 11. On the other hand, the connection area between the first exhaust groove and the exhaust hole 13 corresponding to it is further guaranteed, thereby further improving the exhaust efficiency and exhaust effect of the tire mold, and further guaranteeing the forming quality of the tire.

[0081] Of course, in other embodiments, the two exhaust holes 13 in the first exhaust hole 13 may also be located at the ends of the first exhaust groove, so that part of the hole wall of the exhaust hole 13 is flush with the end wall of the first exhaust groove.

[0082] In a preferred embodiment, refer to Figure 2 , Figure 6 and Figure 7 The exhaust port group also includes a second exhaust port group having an exhaust port 13, wherein the distance between the exhaust port 13 in the second exhaust port group and the adjacent exhaust port 13 is greater than 10 mm.

[0083] Since the distance between the exhaust hole 13 in the second exhaust hole group and the adjacent exhaust hole 13 is greater than 10mm, the length of the exhaust groove 14 is reduced. This means that the length of the exhaust groove 14 corresponding to the second exhaust hole group only needs to be set for one exhaust hole 13 to ensure exhaust pressure, thereby further ensuring exhaust efficiency and exhaust effect, and further ensuring the tire forming quality.

[0084] Furthermore, refer to Figure 2 , Figure 6 and Figure 7 The exhaust groove 14 also includes a second exhaust groove corresponding to the second exhaust hole group. The length of the second exhaust groove is greater than the circumference of the exhaust hole 13 it corresponds to, thereby increasing the proportion of the second exhaust groove on the cavity surface 11 to ensure the exhaust area on the cavity surface 11, thereby further improving the exhaust efficiency and exhaust effect of the tire mold, and further ensuring the forming quality of the tire.

[0085] Of course, in other embodiments, the length of the second exhaust groove may be less than the circumference of its corresponding exhaust hole 13.

[0086] Furthermore, refer to Figure 2 , Figure 6 and Figure 7 The second exhaust groove passes through the center of its corresponding exhaust hole 13.

[0087] It is understandable that the middle position of the second exhaust groove in the width direction coincides with the center point of its corresponding exhaust hole 13, that is, the central axis of the exhaust hole 13 corresponding to the second exhaust groove passes through the middle position in the width direction of the second exhaust groove.

[0088] Since the second exhaust groove passes through the center of its corresponding exhaust hole 13, the communication area between the second exhaust groove and its corresponding exhaust hole 13 is ensured, so as to ensure the exhaust efficiency and exhaust effect of the tire mold, and further ensure the forming quality of the tire.

[0089] Of course, in other embodiments, the second exhaust groove may also be located on the side of its corresponding exhaust hole 13, as long as the second exhaust groove can be connected to its corresponding exhaust hole 13.

[0090] Furthermore, refer to Figure 2 , Figure 6 and Figure 7 Both ends of the second exhaust groove extend to the outside of their corresponding exhaust holes 13.

[0091] It is understandable that the exhaust hole 13 in the second exhaust hole group is located at the middle position in the length direction of the second exhaust groove, and the length of the second exhaust groove is greater than the diameter of the exhaust hole 13.

[0092] Since both ends of the second exhaust groove extend to the outside of its corresponding exhaust hole 13, on the one hand, the proportion of the second exhaust groove on the cavity surface 11 is further increased, so as to further increase the exhaust area on the cavity surface 11. On the other hand, the connection area between the second exhaust groove and its corresponding exhaust hole 13 is further guaranteed, thereby further improving the exhaust efficiency and exhaust effect of the tire mold, and thus further guaranteeing the forming quality of the tire.

[0093] Of course, in other embodiments, the exhaust hole 13 corresponding to the second exhaust groove can also be located at the end of the second exhaust groove, as long as the second exhaust groove and its corresponding exhaust hole 13 can be connected.

[0094] In a preferred embodiment, refer to Figure 2 The rib 2 includes a rib body 21 and a protruding rib 22 disposed on the side of the rib body 21. The vent hole group also includes a third vent hole group with a distance of less than 2 mm from the rib body 21 and a fourth vent hole group with a distance of less than 2 mm from the protruding rib 22. The vent groove 14 also includes a third vent groove disposed corresponding to the third vent hole group and a fourth vent groove disposed corresponding to the fourth vent hole group. The third vent groove is disposed parallel to the extension direction of the rib body 21, and the fourth vent groove is disposed parallel to the extension direction of the protruding rib 22.

[0095] When the tire mold is closed and venting, the gas moves to the positions of the rib 21 and the rib 22 under the compression of the tire rubber material. In this application, by setting a third venting hole group and a third venting groove near the rib 21, and by setting a fourth venting hole group and a fourth venting groove near the rib 22, the venting efficiency and venting effect of the tire mold can be greatly improved. At the same time, since the third venting groove is set parallel to the extension direction of the rib 21 and the fourth venting groove is set parallel to the extension direction of the rib 22, the venting efficiency and venting effect of the tire mold can be further improved, thereby further ensuring the forming quality of the tire.

[0096] This application does not specify the number of exhaust holes 13 in the third and fourth exhaust hole groups. Both can have two exhaust holes 13, one exhaust hole 13, or even other numbers of exhaust holes 13. When the third exhaust hole group has at least two exhaust holes 13, the multiple exhaust holes 13 in the third exhaust hole group are spaced apart along the extension direction of the rib 21. When the fourth exhaust hole group has at least two exhaust holes 13, the multiple exhaust holes 13 in the fourth exhaust hole group are spaced apart along the extension direction of the rib 22.

[0097] This application does not specifically limit the formation of the third and fourth vent groups. The third vent group can be composed of vents 13 separately provided on the base block 1, or it can be composed of a portion of the first vent groups with a distance of less than 2 mm from the rib 21 and a portion of the second vent groups with a distance of less than 2 mm from the rib 21. The fourth vent group can be composed of vents 13 separately provided on the base block 1, or it can be composed of a portion of the first vent groups with a distance of less than 2 mm from the rib 22 and a portion of the second vent groups with a distance of less than 2 mm from the rib 22.

[0098] Furthermore, refer to Figure 2 The rib 21 has a side rib 211 located on the side, and the rib 22 has a side rib 221 located on the side. The vent hole group also includes a side hole group, which has a side rib vent hole located at the side rib 211 and a side rib vent hole located at the side rib 221. The vent groove 14 also includes a side vent groove corresponding to the side hole group. The side groove includes a side rib groove 141 corresponding to the side rib vent hole and a side rib groove 142 corresponding to the side rib vent hole. The side rib groove 141 is arranged parallel to the extension direction of the side rib 211, and the side rib groove 142 is arranged parallel to the extension direction of the side rib 221.

[0099] It is understood that the multiple ribs 21 are divided into side ribs 211 located on the side and inner ribs located on the inside, and the multiple ribs 22 are divided into side ribs 221 located on the side and inner ribs located on the inside; the side rib groove 141 and the side rib groove 142 are connected so that the gas between the side ribs 211 and the side ribs 221 can enter the exhaust hole 13 through the side rib groove 141 and the side rib groove 142 to ensure the exhaust effect of the tire mold.

[0100] Since the side hole group has a side rib vent hole located at the side rib 211 and a side convex vent hole located at the side rib 221, and the side groove includes a side rib groove 141 corresponding to the side rib vent hole and a side convex groove 142 corresponding to the side convex vent hole, the side rib groove 141 is arranged parallel to the extension direction of the side rib 211, and the side convex groove 142 is arranged parallel to the extension direction of the side convex rib 221. On the one hand, the side of the rib 2 also has a vent hole 13 and a vent groove 14, so as to ensure the venting efficiency and venting effect of the side of the rib 2, thereby further ensuring the forming quality of the tire. On the other hand, the gas flowing to the connection between the side rib 211 and the side convex rib 221 can be discharged through the side groove and the side hole group, so as to avoid the air trapping at the connection between the side rib 211 and the side convex rib 221, thereby further ensuring the forming quality of the tire.

[0101] In a preferred embodiment, refer to Figures 4 to 7 The cavity surface 11 is provided with a group of venting micro-holes corresponding to the venting holes 13. Each group of venting micro-holes includes at least one venting micro-hole 15 that communicates with its corresponding venting hole 13. The diameter of the venting micro-hole 15 is smaller than that of the venting hole 13, so that the gas inside the tire mold can also enter the venting hole 13 through the venting micro-hole 15, thereby increasing the venting area on the cavity surface 11, thereby further improving the venting efficiency and venting effect of the tire mold, and further ensuring the molding quality of the tire. In addition, since the diameter of the venting micro-hole 15 is smaller than that of the venting hole 13, the tire rubber material cannot enter the venting micro-hole 15, so as to avoid the occurrence of rubber fibers in the molded tire.

[0102] Furthermore, refer to Figures 4 to 7 Each vent hole 13 has two corresponding sets of vent micro-holes, which are located on both sides of the vent groove 14. Each set of vent micro-holes contains 3-6 vent micro-holes 15. This further increases the venting area on the cavity surface 11, thereby improving the venting efficiency and effect of the tire mold. It also ensures the structural strength of the tread block, thus guaranteeing the service life of the tire mold with the tread block of this application. Furthermore, since the two sets of vent micro-holes are located on both sides of the vent groove 14, the distribution of the vent micro-holes 15 becomes more uniform. On the other hand, it increases the distance between two adjacent vent micro-holes 15 to a certain extent, thus avoiding the situation where multiple vent micro-holes 15 are concentrated in one position due to the small distance between two adjacent vent micro-holes 15, which would affect the venting effect.

[0103] Preferably, each group of exhaust micropores has 6 exhaust micropores 15 to ensure the exhaust efficiency and exhaust effect of the tire mold.

[0104] Of course, in other embodiments, the number of exhaust micropores 15 in each group of exhaust micropores may be more than 6 or less than 3.

[0105] This application does not specifically limit the diameter of the venting micro-hole 15. Preferably, the diameter D2 of the venting micro-hole 15 satisfies: 0.01mm≤D2≤0.05mm. If the diameter of the venting micro-hole 15 is greater than 0.05mm, there is a possibility that tire rubber material may enter the venting micro-hole 15. If the diameter of the venting micro-hole 15 is less than 0.01mm, it will increase the processing difficulty of the venting micro-hole 15. Therefore, by setting the diameter D2 of the venting micro-hole 15 to satisfy: 0.01mm≤D2≤0.05mm, on the one hand, the situation of tire rubber material entering the venting groove 14 is avoided, so as to avoid the tire having rubber fibers after molding. On the other hand, the processing difficulty of the venting micro-hole 15 is reduced, thereby reducing the manufacturing difficulty of the tread block and reducing the production cost of the tread block. In addition, the venting area of ​​the cavity surface 11 is guaranteed to ensure the venting efficiency and venting effect of the tire mold.

[0106] Preferably, the diameter of the exhaust micro-hole 15 is 0.03 mm, so as to ensure that the exhaust micro-hole 15 is easy to process while further avoiding the occurrence of rubber fibers in the molded tire.

[0107] In other embodiments, the diameter of the exhaust micropore 15 can be other values, as long as it can ensure that the tire rubber material cannot enter the exhaust micropore 15.

[0108] This application does not specifically limit the diameter of the vent hole 13. Preferably, the diameter D1 of the vent hole 13 satisfies: 2mm≤D1≤6mm. If the diameter of the vent hole 13 is less than 2mm, it may affect the venting efficiency of the tire mold. If the diameter of the vent hole 13 is greater than 6mm, it may affect the structural strength of the tread block. Therefore, the diameter D1 of the vent hole 13 is set to satisfy: 2mm≤D1≤6mm. On the one hand, the venting efficiency and venting effect of the tire mold are guaranteed. On the other hand, the structural strength of the tread block is guaranteed.

[0109] Preferably, the diameter of the vent hole 13 is 4mm, so as to ensure the venting efficiency and venting effect of the tire mold while ensuring the structural strength of the tread block.

[0110] In other embodiments, the diameter of the vent 13 may be other values.

[0111] This application does not specifically limit the width of the venting groove 14. Preferably, the width W of the venting groove 14 satisfies: 0.02mm≤W≤0.05mm. If the width of the venting groove 14 is set to be greater than 0.05mm, there may be a phenomenon where tire rubber material enters the venting micropores 15. If the width of the venting groove 14 is set to be less than 0.02mm, it will increase the processing difficulty of the venting micropores 15. Therefore, the width W of the venting groove 14 is set to satisfy: 0.02mm≤W≤0.05mm. On the one hand, the venting area of ​​the cavity surface 11 is guaranteed to ensure the venting efficiency and venting effect of the tire mold. On the other hand, the situation where tire rubber material enters the venting groove 14 is avoided, so as to avoid the tire having rubber fibers after molding.

[0112] Preferably, the width of the exhaust groove 14 is 0.04 mm, so as to facilitate the processing of the exhaust groove 14 while further avoiding the occurrence of rubber fibers in the formed tire.

[0113] In other embodiments, the width of the vent groove 14 can be other values, as long as it can ensure that tire rubber cannot enter the vent groove 14.

[0114] This application does not specifically limit the depth of the venting groove 14. Preferably, the depth H of the venting groove 14 satisfies: 1mm≤H≤5mm. If the depth of the venting groove 14 is less than 1mm, the space for accommodating gas in the venting groove 14 will be small, which will affect the venting of the tire mold. If the depth of the venting groove 14 is greater than 5mm, the processing difficulty of the venting groove 14 will be greater, and the space for accommodating gas in the venting groove 14 will be larger, which will also affect the venting of the tire mold. Therefore, setting the depth H of the venting groove 14 to satisfy: 1mm≤H≤5mm reduces the processing difficulty of the venting groove 14, thereby reducing the production difficulty of the tread blocks and improving the production efficiency of the tread blocks. On the other hand, it keeps the space for accommodating gas inside the venting groove 14 within an optimal range to ensure the venting pressure of the tire mold, thereby ensuring the venting efficiency and venting effect of the tire mold.

[0115] Preferably, the depth of the venting groove 14 is 3mm, so as to ensure the venting efficiency and venting effect of the tire mold without increasing the difficulty of tread block production.

[0116] In other embodiments, the depth of the venting groove 14 can be other values, as long as it can ensure that the gas inside the tire mold can be discharged.

[0117] This application does not specify the formation method of the substrate 1, which can be produced by casting or forging.

[0118] Preferably, the vent hole 13 is machined by cutting, and the vent groove 14 is machined by laser cutting or water jet cutting.

[0119] Preferably, when producing the patterned block, firstly, an exhaust hole 13 is opened on the back side 12 of the substrate 1, then the substrate 1 is flipped over, and the exhaust groove 14 and exhaust micro-hole 15 are processed on the cavity surface 11 of the substrate 1.

[0120] This application also discloses a tire mold comprising tread blocks as described above.

[0121] Since the tire mold in this application includes the aforementioned tread blocks, the production cost of the tire mold is reduced and the production efficiency of the tire mold is improved. At the same time, the exhaust efficiency and exhaust effect of the tire mold are improved, thereby ensuring the forming quality of the tire.

[0122] For any parts not mentioned in this application, existing technologies may be used or referenced.

[0123] The various embodiments in this specification are described in a progressive manner. The same or similar parts between the various embodiments can be referred to each other. Each embodiment focuses on describing the differences from other embodiments.

[0124] The above description is merely an embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of this application should be included within the scope of the claims of this application.

Claims

1. A patterned block, characterized in that, The system includes a base (1), which has a cavity surface (11) and a back surface (12) opposite to the cavity surface (11). The interior of the base (1) is provided with multiple sets of vent holes, each set of vent holes having at least one vent hole (13). Each vent hole (13) has an inner opening and an outer opening at both ends, with the outer opening located on the back surface (12). The cavity surface (11) is provided with a rib (2) and multiple vent grooves (14). At least some of the vent grooves (14) are spaced apart along the extension direction of the rib (2). Each vent groove (14) corresponds to a set of vent holes, and the bottom of each vent groove (14) is connected to the inner opening of the vent hole (13) corresponding to it. The width of the vent groove (14) is smaller than the diameter of the vent hole (13).

2. A patterned block according to claim 1, characterized in that, The exhaust port group includes a first exhaust port group having at least two exhaust ports (13), wherein the distance between two adjacent exhaust ports (13) in the first exhaust port group is less than 10 mm.

3. A patterned block according to claim 2, characterized in that, The exhaust groove (14) includes a first exhaust groove corresponding to the first exhaust hole group, and the length of the first exhaust groove is greater than the sum of the circumferences of the plurality of exhaust holes (13) in the first exhaust hole group.

4. A patterned block according to claim 3, characterized in that, The first exhaust groove passes through the center of the plurality of exhaust holes (13) corresponding to it; And / or, both ends of the first exhaust groove extend to the outside of the plurality of exhaust holes (13) corresponding to it.

5. A patterned block according to claim 1, characterized in that, The exhaust port group also includes a second exhaust port group having one exhaust port (13), wherein the distance between the exhaust port (13) in the second exhaust port group and the adjacent exhaust port (13) is greater than 10 mm.

6. A patterned block according to claim 5, characterized in that, The exhaust groove (14) further includes a second exhaust groove corresponding to the second exhaust hole group, the length of the second exhaust groove being greater than the circumference of the exhaust hole (13).

7. A patterned block according to claim 6, characterized in that, The second exhaust groove passes through the center of its corresponding exhaust hole (13); And / or, both ends of the second exhaust groove extend to the outside of the exhaust port (13) corresponding to it.

8. A patterned block according to claim 1, characterized in that, The cavity surface (11) is provided with a group of exhaust micropores corresponding to the exhaust hole (13). Each group of exhaust micropores includes at least one exhaust micropore (15) that communicates with the exhaust hole (13) corresponding to it. The diameter of the exhaust micropore (15) is smaller than the diameter of the exhaust hole (13).

9. A patterned block according to claim 8, characterized in that, The diameter D1 of the exhaust port (13) satisfies: 2mm≤D1≤6mm; And / or, the width W of the exhaust groove (14) satisfies: 0.02mm≤W≤0.05mm; And / or, the depth H of the exhaust groove (14) satisfies: 1mm≤H≤5mm; And / or, the diameter D2 of the exhaust micropore (15) satisfies: 0.01mm≤D2≤0.05mm.

10. A tire mold, characterized in that, Includes the patterned blocks as described in any one of claims 1-9 above.

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