Tire mold

Abstract

The utility model relates to a tire mold which comprises an upper mold and a lower mold, the upper mold and the lower mold are tightly matched through a mold closing mechanism, the lower mold is fixedly arranged and used for supporting the bottom of a tire, an upper movable block is arranged on the upper mold in a sliding mode, and the inner shape of the upper movable block is matched with the outline of the outer surface of the tire. The upper movable block is tightly attached to the lower mold during mold closing to form a complete tire vulcanization cavity, heating elements are arranged on the inner sides of the upper mold and the lower mold, and a temperature regulation and control unit is arranged on the outer side of the upper mold. The mold opening and closing efficiency of the mold is greatly improved, and the production period is remarkably shortened; and heat is uniformly distributed in the vulcanization process, so that high quality of tire vulcanization and high precision of appearance are ensured.

Description

Technical Field

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

[0002] Tire molds are key pieces of equipment used for the vulcanization and molding of various types of tires, and are widely used in the production of tires for automobiles, construction machinery, bicycles, motorcycles, and aircraft. Their main functions include tire vulcanization and molding. The vulcanization process transforms raw rubber into cured rubber, ensuring that its elasticity, strength, and oxidation resistance meet requirements.

[0003] However, existing tire molds have uneven heat distribution during vulcanization, resulting in unstable tire vulcanization quality and reduced production efficiency. Utility Model Content

[0004] (I) Purpose of the utility model

[0005] In order to overcome the above shortcomings, the purpose of this utility model is to provide a tire mold to solve the above technical problems.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, the technical solution provided in this application is as follows:

[0008] A tire mold includes an upper mold and a lower mold, which are tightly fitted together by a mold closing mechanism. The lower mold is fixedly installed to support the bottom of the tire. An upper movable block is slidably provided on the upper mold. The internal shape of the upper movable block matches the outer surface contour of the tire. When the mold is closed, the upper movable block fits tightly with the lower mold to form a complete tire vulcanization cavity. Heating elements are provided on the inner sides of the upper and lower molds, and a temperature control unit is provided on the outer side of the upper mold.

[0009] Preferably, the temperature control unit includes a temperature control sleeve fitted on the outside of the upper mold. The outer side of the temperature control sleeve is cylindrical, and the inner side of the temperature control sleeve is conical. The temperature control sleeve is provided with one or more temperature control air chambers, and adjacent air chambers are connected by a connecting hole.

[0010] Preferably, each of the temperature-regulating air chambers is provided with an air inlet and an air outlet, which are symmetrically arranged with the diameter of the temperature-regulating air chamber as the center line. The air inlet of the lower temperature-regulating air chamber in an adjacent temperature-regulating air chamber is connected to the air outlet of the upper temperature-regulating air chamber through a connecting hole, the air inlet of the top temperature-regulating air chamber is connected to an air inlet nozzle, and the air outlet of the bottom temperature-regulating air chamber is connected to an air outlet nozzle.

[0011] Preferably, the volume ratio of the upper temperature control chamber to the lower temperature control chamber between adjacent temperature control chambers is 1.4-1.6, and the distance between the inner side of the temperature control chamber and the upper mold gradually decreases from top to bottom.

[0012] Preferably, the medium in the temperature control chamber is hot oil, hot water, cold water, or steam.

[0013] Preferably, the upper mold is provided with a sliding track, which is used to guide the movement of the upper movable block. The upper movable block is connected to the drive unit, and under the action of the drive unit and the sliding track, the upper movable block extends and retracts to realize the opening and closing of the mold.

[0014] Preferably, the contact surfaces of the upper mold and the lower mold are provided with sealing rings.

[0015] Preferably, the lower mold is provided with a guide groove corresponding to the upper mold, and the upper movable block is provided with a guide block corresponding to the guide groove.

[0016] Beneficial effects:

[0017] The mold opening and closing efficiency is significantly improved, and the production cycle is significantly shortened. Uniform heat distribution during vulcanization ensures high-quality tire vulcanization and high-precision appearance. Simultaneously, by optimizing cooling efficiency and reducing thermal stress, the mold's service life is extended, and production costs are reduced. Furthermore, flexible temperature control further enhances the mold's adaptability and energy-saving performance. Attached Figure Description

[0018] Figure 1 This is a cross-sectional view of the present invention;

[0019] Figure 2 This is a gas flow diagram of the temperature control chamber according to one embodiment of the present invention;

[0020] Figure 3 This is a cross-sectional view according to one embodiment of the present utility model;

[0021] Figure 4 This is a cross-sectional view according to another embodiment of the present invention. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this utility model clearer, the following description, in conjunction with specific embodiments and the appendix, provides further details. Figure 1-4 The present invention will be described in further detail below. It should be understood that these descriptions are exemplary only and are not intended to limit the scope of the present invention. Furthermore, descriptions of well-known structures and techniques are omitted in the following description to avoid unnecessarily obscuring the concept of the present invention.

[0023] A tire mold includes an upper mold 12 and a lower mold 2, which are tightly fitted together by a mold-closing mechanism. The lower mold 2 is fixedly installed to support the bottom of the tire. An upper movable block 3 is slidably mounted on the upper mold 12. The internal shape of the upper movable block 3 matches the outer surface contour of the tire, ensuring that the tire can form a precise tread pattern and appearance during vulcanization, thus improving the tire's appearance quality. When the mold is closed, it fits tightly with the lower mold 2 to form a complete tire vulcanization cavity 7. Heating elements are provided on the inner sides of the upper mold 12 and the lower mold 2 for further temperature regulation. A temperature control unit is provided on the outer side of the upper mold.

[0024] The temperature control unit includes a temperature control sleeve 11 fitted onto the outside of the upper mold, such as... Figure 1 As shown, the outer side of the temperature regulating sleeve 11 is cylindrical, as... Figure 3 and Figure 4 As shown, the outer side of the temperature control sleeve 11 is a stepped cylindrical shape, which saves raw materials, while the inner side is conical, which better adapts to the shape of the mold. The temperature control sleeve 11 has one or more temperature control chambers 8, which are connected to each other through connecting holes. Each temperature control chamber 8 has an air inlet 9 and an air outlet 13, which are symmetrically arranged about the diameter of the temperature control chamber. The symmetrical arrangement of the air inlets and outlets ensures uniform flow of the medium, further improving the accuracy of temperature control.

[0025] In the adjacent temperature control chambers 8, the air inlet 9 of the lower temperature control chamber 8 is connected to the air outlet 13 of the upper temperature control chamber 8 through a connecting hole, the air inlet of the top temperature control chamber 8 is connected to the air inlet nozzle 10, and the air outlet of the bottom temperature control chamber 8 is connected to the air outlet nozzle 6, forming a complete temperature control channel.

[0026] Between adjacent temperature-controlled air chambers 8, the volume ratio of the upper temperature-controlled air chamber 8 to the lower temperature-controlled air chamber 8 is 1.4-1.6, and the distance between the inner side of the temperature-controlled air chamber 8 and the upper mold 12 gradually decreases from top to bottom.

[0027] The medium in the temperature-regulating chamber 8 can be hot oil, hot water, cold water, or steam. By selecting different media, the temperature can be flexibly adjusted according to different vulcanization requirements, further improving the flexibility of temperature control. The temperature-regulating chamber 8 ensures a more uniform temperature distribution in the mold during vulcanization, reducing tire performance differences caused by uneven temperature. Simultaneously, by optimizing cooling efficiency, it significantly shortens cooling time and improves production efficiency.

[0028] The upper mold 12 is equipped with a sliding track, which guides the movement of the upper movable block 3. The upper movable block is connected to a drive unit, and under the action of the drive unit and the sliding track, the upper movable block extends and retracts, realizing the opening and closing of the mold. This structural design makes the mold opening and closing faster, reduces the production cycle, and improves production efficiency.

[0029] The contact surfaces of the upper mold 12 and the lower mold 2 are provided with sealing rings 5, which ensure the sealing of the vulcanization cavity when the mold is closed, prevent gas leakage during the vulcanization process, and improve the vulcanization quality.

[0030] The lower mold 2 is provided with a guide groove 4 corresponding to the upper mold 12, and the upper movable block 3 is provided with a guide block 1 corresponding to the guide groove 4. The cooperation of the guide groove and the guide block improves the mold closing accuracy and stability, and further enhances the vulcanization quality.

[0031] This tire mold achieves significant comprehensive benefits through optimized sliding design of the upper movable block, uniform layout of heating elements, efficient cooling system of the temperature control unit, and precise coordination of the sealing and guiding structures. Specifically, the mold's opening and closing efficiency is greatly improved, and the production cycle is significantly shortened; uniform heat distribution during vulcanization ensures high-quality tire vulcanization and high-precision appearance; simultaneously, by optimizing cooling efficiency and reducing thermal stress, the mold's service life is extended, and production costs are reduced. Furthermore, the flexible temperature control function further enhances the mold's adaptability and energy-saving effect. Overall, this mold performs excellently in improving production efficiency, reducing energy consumption, improving product quality, and extending service life, providing the tire manufacturing industry with an efficient, energy-saving, and reliable solution.

[0032] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0033] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A tire mold, characterized in that, The device includes an upper mold and a lower mold, which are tightly fitted together by a mold-closing mechanism. The lower mold is fixedly installed to support the bottom of the tire. An upper movable block is slidably provided on the upper mold. The internal shape of the upper movable block matches the outer surface contour of the tire. When the mold is closed, the upper movable block fits tightly with the lower mold to form a complete tire vulcanization cavity. Heating elements are provided on the inner sides of the upper and lower molds, and a temperature control unit is provided on the outer side of the upper mold.

2. A tire mold according to claim 1, characterized in that, The temperature control unit includes a temperature control sleeve fitted on the outside of the upper mold. The outer side of the temperature control sleeve is cylindrical, and the inner side of the temperature control sleeve is conical. The temperature control sleeve is provided with one or more temperature control air chambers, and adjacent air chambers are connected by a connecting hole.

3. A tire mold according to claim 2, characterized in that, Each of the temperature-regulating air chambers is provided with an air inlet and an air outlet. The air inlet and air outlet are symmetrically arranged with the diameter of the temperature-regulating air chamber as the center line. The air inlet of the lower temperature-regulating air chamber in an adjacent temperature-regulating air chamber is connected to the air outlet of the upper temperature-regulating air chamber through a connecting hole. The air inlet of the top temperature-regulating air chamber is connected to an air inlet nozzle. The air outlet of the bottom temperature-regulating air chamber is connected to an air outlet nozzle.

4. A tire mold according to claim 3, characterized in that, Between adjacent temperature-controlled air chambers, the volume ratio of the upper temperature-controlled air chamber to the lower temperature-controlled air chamber is 1.4-1.6, and the distance between the inner side of the temperature-controlled air chamber and the upper mold gradually decreases from top to bottom.

5. A tire mold according to claim 3, characterized in that, The medium in the temperature-controlled chamber is hot oil, hot water, cold water, or steam.

6. A tire mold according to claim 1, characterized in that, The upper mold is equipped with a sliding track, which is used to guide the movement of the upper movable block. The upper movable block is connected to the drive unit. Under the action of the drive unit and the sliding track, the upper movable block extends and retracts, realizing the opening and closing of the mold.

7. A tire mold according to claim 1, characterized in that, The contact surfaces of the upper and lower molds are equipped with sealing rings.

8. A tire mold according to claim 1, characterized in that, The lower mold is provided with a guide groove corresponding to the upper mold, and the upper movable block is provided with a guide block corresponding to the guide groove.

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