A tire vulcanizing machine electrical heating device
By installing a graphene heating film on the inner surface of the mold of the tire vulcanization machine, the problems of excessive temperature difference and high energy consumption caused by steam condensation in the traditional vulcanization machine are solved, and uniform heating and efficient vulcanization of the tire embryos are achieved.
Patent Information
- Application Number
- CN202420556005.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-21
- Publication Date
- 2025-04-04
- Estimated Expiration
- 2034-03-21
AI Technical Summary
During the tire vulcanization process, traditional vulcanization machines have excessive temperature difference due to steam condensation, resulting in uneven vulcanization, consume a large amount of steam and high energy consumption. The electromagnetic heating process has problems such as uneven heating and electromagnetic radiation.
The graphene heating film is used, and is fixed to the inner surface of the mold by bolts. The independent transmission line and temperature sensor achieve uniform heating of the tire embryo. The conductive properties and atomic structure of the graphene heating film make it light and thin and fast heating.
The uniform heating of tire embryos is achieved, the vulcanization effect is improved, energy consumption is reduced, and the harm of steam consumption and electromagnetic radiation to operators is avoided.
Smart Images
Figure CN222712908U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of tire vulcanization processing, in particular to a tire vulcanization electromechanical heating device. Background Art
[0002] When vulcanizing tires, traditional vulcanizers generally use high-temperature steam to heat the hot plate vulcanization chamber to meet the temperature required for tire vulcanization. As the vulcanization process progresses, the steam will provide heat for the tire vulcanization and will also be accompanied by the generation of condensed water, which will lead to a large temperature difference between the upper and lower molds, resulting in uneven tire vulcanization, causing tire degradation or scrapping. In addition, a large amount of steam is consumed during the vulcanization process, which consumes extremely high energy. The steam is mainly prepared by boilers that burn coal and other fuels, which causes serious pollution.
[0003] At present, some companies use electromagnetic heating technology instead of steam heating, and heating coils are installed in the upper and lower hot plates in the vulcanization chamber and in the tire mold. The electromagnetic induction generated by the coil causes the electrons inside the metal mold to generate eddy currents, collisions, and friction, so that the metal mold heats up rapidly and transfers heat to the tire. Although the electromagnetic heating process has a fast heating speed, does not require a boiler to prepare steam, and is environmentally friendly and energy-saving, the electromagnetic heating process has the following disadvantages: 1. Electromagnetic heating can only heat the metal mold for tire vulcanization, and the tire is not a metal part and cannot be heated directly. It can only rely on the metal mold to transfer heat, and the heating effect is poor; 2. The electromagnetic heating device is composed of multiple heating coils, which are distributed in the upper and lower hot plates and the tire mold, resulting in many heating sources and uneven heating effects; 3. Electromagnetic radiation and thermal radiation are generated during the electromagnetic heating process, which is harmful to the health of the operators. Utility Model Content
[0004] The utility model provides a tire vulcanizing electromechanical heating device with uniform heating and good heating effect.
[0005] The tire vulcanization electromechanical heating device of the utility model comprises a mold for clamping a tire embryo and a vulcanization bladder, wherein the inner surface of the mold relative to the vulcanization bladder is densely covered and fixed with a graphene heating film for heating the tire embryo.
[0006] Furthermore, the graphene heating film is fixed to the inner surface of the mold by bolts.
[0007] Furthermore, the mold includes an upper module, a lower module and a side module, wherein graphene heating films are fixedly installed on the inner surfaces of the upper module, the lower module and the side module respectively, and each graphene heating film installed on the upper module, the lower module and the side module has an independent power transmission line.
[0008] Furthermore, a plurality of temperature sensors for detecting the temperature at various locations on the inner surface of the mold in real time are distributed and installed between the upper module, the lower module, the side module and the graphene heating film.
[0009] Furthermore, it also includes a control cabinet connected to the temperature sensor, and the control cabinet is also connected to the graphene heating film control.
[0010] Furthermore, the outer surface of the mold is also covered with a vulcanization chamber outer cover, and the inner side of the vulcanization chamber outer cover is installed with thermal insulation material, and the thermal insulation material is slag wool.
[0011] In the tire vulcanization electromechanical heating device, during the tire vulcanization process, the tire embryo is sandwiched between the vulcanization bladder and the mold. Gas or liquid is introduced into the vulcanization bladder to gradually expand, and the tire embryo is formed as the vulcanization bladder expands, and the inner contour of the tire embryo fits the outer surface of the vulcanization bladder, and the outer contour of the tire embryo fits the inner surface of the mold. After the tire embryo is formed, gas or liquid continues to be introduced into the vulcanization bladder and a certain pressure is maintained, and at the same time, the graphene heating film installed on the inner surface of the mold is energized and heated. Under the action of a certain temperature, pressure, and time, the tire embryo finally completes vulcanization forming. The advantage of the utility model is that the excellent electrical conductivity and atomic structure of the graphene material are used to make a graphene heating film with a light volume, fast heating, and uniform heating, and the graphene heating film is tightly fixed on the inner surface of the mold, without heat transfer through the mold, but directly heating the tire embryo, the tire embryo is heated more evenly, the heating effect is better, and the vulcanization effect is better. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 The figure is a schematic diagram of the structure of an electrical heating device for a tire vulcanizer.
[0013] Figure 2 The present invention is a cross-sectional schematic diagram of an electrical heating device for a tire vulcanizer.
[0014] Figure 3 Schematic diagram of temperature control of graphene heating film. DETAILED DESCRIPTION
[0015] like Figure 1As shown, a tire vulcanization electromechanical heating device includes a mold 2 and a vulcanization bladder 3 for clamping a tire embryo 1, and the mold is densely fixed with a graphene heating film 4 for heating the tire embryo relative to the inner surface of the vulcanization bladder. During the tire vulcanization process, the tire embryo is sandwiched between the vulcanization bladder and the mold. Gas or liquid is introduced into the vulcanization bladder to gradually expand, and the tire embryo is formed as the vulcanization bladder expands. The inner contour of the tire embryo fits the outer surface of the vulcanization bladder, and the outer contour of the tire embryo fits the inner surface of the mold. After the tire embryo is formed, gas or liquid continues to be introduced into the vulcanization bladder and a certain pressure is maintained. At the same time, the graphene heating film installed on the inner surface of the mold is energized and heated. Under the action of a certain temperature, pressure, and time, the tire embryo is finally vulcanized and formed. The advantage of the utility model is that the excellent conductive properties and atomic structure of the graphene material are used to make a light and thin graphene heating film that heats quickly and evenly, and the graphene heating film is tightly fixed on the inner surface of the mold. There is no need to transfer heat through the mold, but the tire embryo is directly heated. The tire embryo is heated more evenly, the heating effect is better, and the vulcanization effect is better.
[0016] The gas introduced into the vulcanization bladder is nitrogen. Due to the gas stability of nitrogen, the stability of the vulcanization bladder expansion can be improved, which is beneficial for the fitting of the tire embryo with the inner surface of the mold and improves the heating effect of the graphene heating film.
[0017] The graphene heating film can be fixed to the inner surface of the mold by glue, but the glue can easily cause the graphene heating film to fall off from the mold under the heated working temperature. Therefore, the graphene heating film is fixed to the inner surface of the mold by bolts, which can ensure that the graphene heating film fits tightly to the inner surface of the mold and prevent the graphene heating film from falling off from the mold.
[0018] like Figure 2 As shown, the mold includes an upper module 201, a lower module 202 and a side module 203, wherein the inner surfaces of the upper module, the lower module and the side module are respectively fixedly installed with graphene heating films, and each graphene heating film installed on the upper module, the lower module and the side module has an independent power transmission line, the upper module 201 and the lower module 202 are distributed on the upper and lower sides of the tire embryo, and the side module 203 is distributed on the left and right sides of the tire embryo. The upper module 201, the lower module 202 and the side module 203 form a mold that can wrap the outer surface of the tire embryo, wherein the mold is made of metal. Since the thickness of each part of the tire embryo is the same during the vulcanization process of the tire embryo, if the vulcanization effect needs to be in the optimal range, this requires that the heating temperature also needs to be slightly different. By arranging independent graphene heating films on the upper module, the lower module and the side module of the mold, the upper module, the lower module and the side module can be controlled and heated separately, so that each surface of the tire embryo can be better vulcanized and the vulcanization effect is improved.
[0019] like Figure 3 As shown, a number of temperature sensors 5 for real-time detection of the temperature of various locations on the inner surface of the mold are distributed and installed between the upper module, the lower module, the side module and the graphene heating film, and also include a control cabinet 6 connected to the temperature sensors. The control cabinet is also controlled and connected to the graphene heating film. The temperature sensors transmit real-time temperature data of various locations on the inner surface of the mold during the vulcanization process to the control cabinet. The control cabinet makes real-time adjustments to the operating conditions of each graphene heating film according to the temperature data, and feeds back to the working current of each graphene heating film, thereby controlling the uniform heating of the tire embryo as a whole.
[0020] The outer surface of the mold is also covered with a vulcanization chamber outer cover 7, and the inner side of the vulcanization chamber outer cover is installed with thermal insulation material, which is slag wool. By installing the thermal insulation material on the inner side of the vulcanization chamber outer cover, heat loss can be reduced and operators can be protected from heat radiation damage.
Claims
1. A tire vulcanizing electromechanical heating device, comprising a mold (2) for clamping a tire embryo (1) and a vulcanizing bladder (3), characterized in that: The inner surface of the mold relative to the vulcanization bladder is densely covered with and fixed with a graphene heating film (4) for heating the tire embryo.
2. The tire vulcanizer electrical heating device according to claim 1, characterized in that: The graphene heating film is fixed to the inner surface of the mold by bolts.
3. The tire vulcanizer electrical heating device according to claim 1, characterized in that: The mould comprises an upper module (201), a lower module (202) and a side module (203), wherein graphene heating films are fixedly mounted on the inner surfaces of the upper module, the lower module and the side module respectively, and each graphene heating film mounted on the upper module, the lower module and the side module has an independent power transmission line.
4. The tire vulcanizer electrical heating device according to claim 3, characterized in that: A plurality of temperature sensors (5) for real-time detection of the temperature at various locations on the inner surface of the mold are distributed and installed between the upper module, the lower module, the side module and the graphene heating film.
5. The tire vulcanizer electrical heating device according to claim 4, characterized in that: It also includes a control cabinet (6) connected to the temperature sensor, and the control cabinet is also connected to the graphene heating film control.
6. The tire vulcanizer electrical heating device according to claim 1, characterized in that: The outer surface of the mold is also covered with a vulcanization chamber outer cover (7), and the inner side of the vulcanization chamber outer cover is installed with a thermal insulation material, and the thermal insulation material is slag wool.