Medium-conducting electromagnetic heating hot plate device

Abstract

The utility model discloses a medium conduction type electromagnetic heating hot plate device, is divided into upper heating system and lower heating system, and the mould is placed between upper heating system and lower heating system, and upper heating system is composed of medium conduction upper heating plate and upper insulation heat -proof pressure winding board, and lower heating system is composed of medium conduction lower heating plate and lower insulation heat -proof pressure winding board, wherein upper insulation heat -proof pressure winding board, lower insulation heat -proof pressure winding board respectively install upper electromagnetic coil winding, lower electromagnetic coil winding in, and medium conduction upper heating plate, medium conduction lower heating plate all are equipped with the cavity of accommodating heat conducting medium in. The utility model not only has overcome the problem of the uneven heating plate temperature caused by mould installation, electromagnetic winding irregular, but also can switch to steam heating mode to satisfy the vulcanization demand of special specification tire.

Description

TECHNICAL FIELD

[0001] The utility model relates to the component structure of tire setting curing machine, concretely is a medium conduction type electromagnetic heating hot plate device. BACKGROUND

[0002] The electric heating hot plate of tire setting curing machine is installed in the curing chamber, and the existing electric heating hot plate has resistance heating and electromagnetic heating two modes, wherein the resistance heating is heated by releasing heat through the electric heating body by current, and the electromagnetic heating is heated by generating heat energy by eddy current on the metal plate by the alternating magnetic field generated by the electromagnetic coil winding. The electric heating hot plate of the above two modes has defects: 1, compared with the electromagnetic heating mode, the resistance heating mode is slow in heating speed, low in thermal efficiency, not energy-saving and environment-friendly, and has large heat transfer loss; 2, the electromagnetic heating mode is limited by the connecting structure of the hot plate and the mold, the internal wiring winding is limited, resulting in insufficient surface temperature uniformity of the heating plate. 3, it cannot meet the curing process demand of some special specification tires. UTILITY MODEL CONTENTS

[0003] In view of the defects of the prior art, the utility model provides a medium conduction type electromagnetic heating hot plate device, which not only overcomes the problem of uneven temperature of the heating plate caused by irregular mold installation and electromagnetic winding, but also can be switched to steam heating mode to meet the curing demand of special specification tires.

[0004] The utility model realizes the above-mentioned purposes through the following technical schemes:

[0005] The medium conduction type electromagnetic heating hot plate device is divided into an upper heating system and a lower heating system, the mold is arranged between the upper heating system and the lower heating system, the upper heating system is composed of a medium conduction upper heating plate and an upper insulation heat-resistant pressure winding plate, the lower heating system is composed of a medium conduction lower heating plate and a lower insulation heat-resistant pressure winding plate, the upper insulation heat-resistant pressure winding plate and the lower insulation heat-resistant pressure winding plate are respectively provided with an upper electromagnetic coil winding and a lower electromagnetic coil winding, the medium conduction upper heating plate and the medium conduction lower heating plate are both provided with a cavity for containing heat-conducting medium, and the medium container is in a closed form, the container itself can withstand a certain medium pressure, when the heat-conducting medium is heated, the temperature and pressure of the medium in the closed container increase; the uniformity of the surface temperature of the hot plate is realized by the temperature and pressure feedback control of the medium in the container; when curing special specification tires, steam heating is needed, the medium container can be switched to steam heating mode.

[0006] Further, the heat-conducting medium is liquid medium or water vapor.

[0007] Further, the medium conduction upper heating plate and the medium conduction lower heating plate are further provided with a temperature measuring device, a pressure measuring device, a liquid level display device and a pressure relief device.

[0008] Compared with the prior art, the device has the advantages and effects that:

[0009] 1. The device is improved on the basis of the existing electromagnetic heating hot plate, heat conduction is realized by using the flow of heat-conducting medium in the cavity, the problem of uneven temperature caused by irregular installation of the mold and electromagnetic winding is overcome, and the uniformity of the surface temperature of the heating plate is consistent with that of the existing steam heating method.

[0010] 2. The device can realize free switching between electromagnetic heating and steam heating, and the mold installation method of the curing machine does not need special modification, so it is not only suitable for the vulcanization process of conventional tires, but also can meet the vulcanization demand of special specification tires. BRIEF DESCRIPTION OF DRAWINGS

[0011] Figure 1 It is a schematic diagram of the overall structure of the device.

[0012] Figure 2 It is a schematic diagram of the local structure of the device.

[0013] Figure number identification: 1, medium conduction upper heating plate; 2, upper insulation heat-resistant pressure winding plate; 3, upper electromagnetic coil winding; 4, medium conduction lower heating plate; 5, lower electromagnetic coil winding; 6, lower insulation heat-resistant pressure winding plate; 7, mold; 8, curing machine upper fixed plate; 9, curing machine lower fixed plate; 10, temperature measuring device; 11, pressure measuring device; 12, liquid level display device; 13, pressure relief device. DETAILED DESCRIPTION

[0014] The device will be further described in combination with the embodiments, but the device is not limited to these embodiments.

[0015] The medium conduction type electromagnetic heating hot plate device described in the embodiment, such as Figure 1As shown, it is divided into upper heating system and lower heating system, which are respectively fixed with the upper fixed plate 8 of the curing machine and the lower fixed plate 9 of the curing machine, the upper heating system is composed of medium conduction upper heating plate 1 and upper insulation heat insulation anti-pressure winding plate 2, the lower heating system is composed of medium conduction lower heating plate 4 and lower insulation heat insulation anti-pressure winding plate 5, the mold 7 is installed between the medium conduction upper heating plate 1 and the medium conduction lower heating plate 4. The groove of the upper insulation heat insulation anti-pressure winding plate 2 is provided with the upper electromagnetic coil winding 3, the groove of the lower insulation heat insulation anti-pressure winding plate 5 is provided with the lower electromagnetic coil winding 6, the medium conduction upper heating plate 1 and the medium conduction lower heating plate 4 are both provided with cavities containing heat-conducting medium, the heat-conducting medium is liquid medium or water vapor, and the liquid medium can be water, oil and the like. When the coil winding is electrified, heat is generated to heat the medium conduction upper heating plate 1, the medium conduction lower heating plate 4 and the heat-conducting medium inside them, and then the mold 7 is heated.

[0016] As shown in Figure 1 The medium conduction upper heating plate 1 and the medium conduction lower heating plate 4 are provided with interfaces for installing temperature measuring devices 10. Since the medium has fluidity, when the medium is unevenly heated, it can flow in the cavity for heat conduction, thereby ensuring that the surface temperature of the heating plate is uniform. In this embodiment, the temperature measuring device 10 is a thermocouple, which is mainly used to measure the temperature of the medium inside the heating plate.

[0017] As shown in Figure 2 The medium conduction upper heating plate 1 and the medium conduction lower heating plate 4 are also provided with interfaces for installing pressure measuring devices 11, liquid level display devices 12 and pressure relief devices 13. In this embodiment, the pressure measuring device 11 is a pressure sensor, which is used to monitor the internal pressure of the heating plate in real time, ensure that the internal medium pressure and temperature curve conforms to the temperature and pressure curve of the medium, and ensure the safety of the heating plate; the liquid level display device 12 is a liquid level meter, which is used to monitor the height of the liquid level inside the heating plate, and ensure that the medium in the heating plate fills the entire cavity; the pressure relief device 13 is a constant pressure leakage valve or an overflow valve, which is used to release pressure when the medium inside the heating plate abnormally heats up and causes uncontrollable pressure rise, to ensure safety in use.

[0018] The working principle of this embodiment is as follows:

[0019] 1. When curing general specification tires, water is used as heat-conducting medium and is fed into the medium conduction upper heating plate 1 and the medium conduction lower heating plate 4, and the upper electromagnetic coil winding 3 and the lower electromagnetic coil winding 6 are electrified to generate alternating magnetic field to heat the heating plate and the heat-conducting medium. When the heat-conducting medium is heated, its temperature and pressure are proportional, and the heat-conducting medium flows in the cavity to exchange heat, so that the temperature of the heating plate is kept uniform. By controlling the temperature and pressure of the medium, the surface temperature of the heating plate can be accurately controlled.

[0020] 2. When vulcanizing special specification tires, because the conventional electric heating method cannot meet the specific vulcanization process, it needs to be changed to the traditional steam heating process, at this time only the heat conducting medium in the heating plate needs to be replaced with water vapor.

Claims

1. Medium-conducting electromagnetic heating hot plate device, divided into an upper heating system and a lower heating system, a mold (7) is arranged between the upper heating system and the lower heating system, characterized in that: The upper heating system is composed of a medium-conducting upper heating plate (1) and an upper insulation heat-proof pressure-resistant winding plate (2), and the lower heating system is composed of a medium-conducting lower heating plate (4) and a lower insulation heat-proof pressure-resistant winding plate (5), wherein the upper insulation heat-proof pressure-resistant winding plate (2) and the lower insulation heat-proof pressure-resistant winding plate (5) are respectively provided with an upper electromagnetic coil winding (3) and a lower electromagnetic coil winding (6), and the medium-conducting upper heating plate (1) and the medium-conducting lower heating plate (4) are respectively provided with cavities for containing heat-conducting medium.

2. The medium conducted electromagnetic heating hot plate apparatus of claim 1, wherein: The heat-conducting medium is a liquid medium or water vapor.

3. The medium conducted electromagnetic heating hot plate apparatus of claim 1, wherein: The medium-conducting upper heating plate (1) and the medium-conducting lower heating plate (4) are further provided with a temperature measuring device (10), a pressure measuring device (11), a liquid level display device (12) and a pressure relief device (13).

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