CN203600496U - Tyre electromagnetic heating and vulcanizing device with controllable and segmented temperatures of heat source - Google Patents

Abstract

The utility model relates to a tyre electromagnetic heating and vulcanizing device with controllable and segmented temperatures of a heat source, belonging to the field of tyre production equipment. The tyre electromagnetic heating and vulcanizing device is provided with a telescopic metal internal mould, and is characterized in that the internal mould comprises wide drum tiles, narrow drum tiles, a dilation mechanism and a rib plate which is fixedly connected with the wide drum tiles and the narrow drum tiles and plays a supporting role, the wide drum tiles and the narrow drum tiles are mutually and alternatively arranged along the circumferential direction, longitudinal outer profile curves on each wide drum tile and each narrow drum tile which form a drum tile are all consistent with an inner profile curve of a finished tyre, the wide drum tiles and the narrow drum tiles are tightly clung when the internal mould is in a distending state, a complete circle is formed on the shape, cavities are formed in the middles of the surfaces of the wide drum tiles and the narrow drum tiles which are in contact with the rib plate, phase change materials are encapsulated in the cavities, two groups of electromagnetic coils with same inductance values are arranged on the back surfaces of each wide drum tile and each narrow drum tile, the electromagnetic coils are symmetrically arranged at the left side and right side of the longitudinal center line of the drum tile, the winding direction is a longitudinal direction of the drum tile, the electromagnetic coils are wound on I-shaped magnetic cores, the winding direction is a longitudinal direction of the drum tile, a thermal-protective coating is coated on the surfaces of the electromagnetic coils, the outermost layer is a housing, and the two I-shaped magnetic cores are symmetrically distributed at the left side and right side of the rib plate.

Description

The tire Electromagnetic Heating vulcanization plant that heat source temperature segmentation is controlled

Technical field

The utility model relates to tire production technology and apparatus field, at length says it is the controlled tire Electromagnetic Heating vulcanization plant of a kind of heat source temperature segmentation.

Background technology

As everyone knows, tyre vulcanizing its device structure after the technological change of having experienced the alternative curing bag of capsule tends towards stability, although the more early stage outer first cure efficiency of curing bag machine of bladder curing form has improved nearly one times, but still has certain defect.On the one hand, the tire shoulder of tire and tyre bead portion sizing material layer are thicker, when sulfuration, compare crown, the position that the sizing material layers such as sidewall are thin needs more heat just can reach the smooth phase of sulfuration, therefore desirable Cure Conditions of Tire is tire shoulder, the heat source temperature that tyre bead is corresponding is high, and sidewall, the corresponding heat source temperature of crown is low, but in reality sulfuration is produced, saturated vapor after passing into curing bag conducts heat to tire base, tire base is heated and indifference everywhere, work as tire shoulder, when the sizing material of tyre bead portion reaches the smooth phase of sulfuration, crown, often serious over cure of the sizing material at sidewall place, this reduces the performance of tire greatly.On the other hand, vulcanization process need to consume a large amount of steam, but it is little that these steam reality are absorbed by tire, major part is consumed in the middle of invalid pipeline circulation, the nitrogen sulfurization technology based on " isobaric variable temperature " principle that development in recent years is got up, although successful aspect energy-conservation, but also bring new problem, the high-temperature steam that passes into capsule can be deposited on capsule bottom because of condensation, cause capsule upper and lower sides position temperature difference, thereby cause the inequality of conducting heat, on tire, the lower sidewall product temperature difference is larger, tyre vulcanization quality reduces, although each tire plant has been alleviated heat transfer uneven phenomenon to a certain extent by the blow hole structure of optimizing on central authority, but this problem fails to be solved all the time at all.

Summary of the invention

The purpose of this utility model is for the deficiency in existing tyre vulcanizing, and the utility model provides a kind of thermal efficiency high, and energy resource consumption is few, lower sidewall be heated consistent and controlled tire Electromagnetic Heating vulcanization process and the device of heat source temperature segmentation on tire base.

The utility model solves the technical scheme that its technical problem adopts: the tire Electromagnetic Heating vulcanization plant that a kind of heat source temperature segmentation is controlled, be provided with telescopic metal inner mould tool, it is characterized in that, inner mold is by wide drum watt, narrow drum watt, breathing mechanism and with wide drum watt, narrow drum watt is connected and passive gusset composition, wide drum watt is circumferentially arranged alternately with each other with a narrow drum watt edge, the every wide drum watt that composition is bulging watt, narrow drum longitudinal outline curve watt is everywhere all consistent with the inner profile curve of finished tire, inner mold wide drum watt in the time of distending state fits tightly with narrow drum watt, form in shape a complete circle, offer die cavity at the wide drum contacting with gusset watt and a narrow drum watt middle part, surface, in die cavity, embedding has phase-change material, the wide drum of each piece watt and the narrow drum watt back side are provided with two groups of solenoids that inductance value is identical, solenoid is symmetrically distributed in the left and right sides of drum watt longitudinal centre line, direction of winding along bulging watt longitudinally, solenoid is wrapped on " | " shape magnetic core, direction of winding along bulging watt longitudinally, solenoid surface coverage has thermal insulation layer, outermost layer is shell, two " | " shape magnetic cores are symmetrically distributed in the left and right sides of gusset.

The utility model also can be achieved by the following measures: two groups of solenoids that are wrapped on two " | " shape magnetic core are in series by a long lead, then are connected with frequency conversion control circuit.Two groups of solenoids that are wrapped on two " | " shape magnetic core are in parallel, are connected respectively with control circuit.The inductance value of wide drum watt upper solenoid is greater than the inductance value of narrow drum watt upper solenoid, differs 15 μ H～25 μ H.Wide drum watt, narrow drum watt are made up of ferrous material.Gusset and shell are made up of non-magnetic metal material.Wide drum watt, narrow drum watt inside center and end positions are equipped with thermocouple, so that a drum watt surface temperature is monitored in real time." | " shape magnetic core is made up of the alloy material with magnetic conduction function.

The beneficial effects of the utility model are, adopt Electromagnetic Heating mode to substitute the traditional heat transfer media such as steam, superheated water, heat transfer efficiency is high, energy resource consumption reduces, and the caloric requirement when holding the phase-change material containing in inner mold and can vulcanizing according to tire base different parts is to drum watt temperature section control, thereby when guaranteeing that the more difficult sulfide site of tire base reaches the smooth phase of sulfuration, prevent easier sulfide site over cure, therefore tyre vulcanization quality improves.

Accompanying drawing explanation

Below in conjunction with drawings and Examples, the utility model is further illustrated.

Schematic diagram when Fig. 1 is the inner mold distending of the controlled tire Electromagnetic Heating vulcanization plant of a kind of heat source temperature segmentation of the utility model.

Fig. 2 is the local enlarged diagram of Fig. 1.

Fig. 3 is the partial sectional view of the controlled tire Electromagnetic Heating vulcanization plant of a kind of heat source temperature segmentation of the utility model.

Fig. 4 is the partial schematic diagram of the controlled tire Electromagnetic Heating vulcanization plant of a kind of heat source temperature segmentation of the utility model.

In figure, 1, Kuan Guwa; 2, silica gel; 3, " | " shape magnetic core; 4, shell; 5, thermal insulation layer; 6, solenoid; 7, gusset; 8, thermocouple; 9, phase-change material; 10, tire base; 11, narrow drum watt.

The specific embodiment

By reference to the accompanying drawings and embodiment the utility model is described in further detail.Referring to Fig. 1～Fig. 4, it is the metal inner mould tool that the curing bag on tire shaping vulcanizing machine central mechanism is replaced with to radially breathing, inner mold is mainly by the wide drum of n piece watt 1, the narrow drum of n piece watt 11(n is not less than 5 integer), form with the bulging watt of also passive gusset 7 that is connected, wherein wide drum watt 1 and narrow drum watts 11 be along being circumferentially arranged alternately with each other, and each piece drum longitudinal outline curve watt is everywhere all consistent with the inner profile curve of finished tire.When sulfuration, inner mold is in distending state, and wide drum watt 1 and narrow drum watts 11 fits tightly, form in shape a complete circle, the external diameter of circle equals the internal diameter of finished tire, offers the die cavity of certain depth at the drum contacting with gusset 7 watt middle part, surface, and in die cavity, embedding has phase-change material 9.The bulging watt back side of each piece is provided with two groups of solenoids 6 that inductance value is identical, and solenoid 6 is symmetrically distributed in the left and right sides of drum watt longitudinal centre line, and direction of winding along bulging watt longitudinally.When work, solenoid 6 under high frequency electric effect produces the high-frequency alternating magnetic field of the magnetic line of force along drum watt vertical wraparound, the drum of inner mold watt produces vortex flow by cutting magnetic line surface, the fuel factor of vortex flow raises rapidly drum Wa Wendu, thereby tire base 10 is heated, because the drum watt residing alternating magnetic field intensity of upper and lower two side position is identical, the vortex flow size therefore producing is identical, and temperature rise is consistent.When drum watt middle part is heated to required temperature, its inner phase-change material 9 absorbs and stores unnecessary heat, thereby middle part temperature is no longer changed, and a drum watt upper and lower both sides temperature continues to raise, like this, drum watt middle part is different from both sides temperature, and the caloric requirement while sulfuration to adapt to tire different parts guarantees tire entirety vulcanized quality.

The tire Electromagnetic Heating vulcanization plant that a kind of heat source temperature segmentation of the utility model is controlled, this device is mainly made up of inner mold, solenoid 6, " | " shape magnetic core 3, thermal insulation layer 5, shell 4, inner mold is mainly made up of wide drum watt 1, narrow drum watts 11 and gusset 7, offer at the drum contacting with a gusset 7 watt middle part, surface the die cavity that 2～5mm is dark, in die cavity, embedding has phase-change material 9, if phase transition temperature is at the solid-solid inorganic salt of 150 ℃.Solenoid 6 is wrapped on " | " shape magnetic core 3, direction of winding is longitudinal along the wide drum of composition drum watt watt 1, narrow drum watts 11, solenoid 6 surface coverage have thermal insulation layer 5, outermost layer is shell 4, two " | " shape magnetic cores 3 are symmetrically distributed in the left and right sides of gusset 7, and fixing with gusset 7 bondings by silica gel 2.Two groups of solenoids 6 that are wrapped on two " | " shape magnetic core 3 are in series by a long lead, then are connected with frequency conversion control circuit, can be also parallel with one another, are connected respectively with control circuit.The winding direction of two groups of coils 6 is identical and inductance value is identical, and because the volume of wide drum watt 1 is greater than the volume of narrow drum watts 11, therefore on wide drum watt 1, the inductance value of solenoid 6 is greater than the inductance value of solenoid 6 on narrow drum watts 11, and difference is 15 μ H～25 μ H.Drum watt is made up of the high steel of irony content, as No. 45 steel.Gusset 7 is made up of non-magnetic metal material with shell 4, as stainless steel 304.Drum watt inside center and end positions are equipped with thermocouple 8, so that a drum watt surface temperature is monitored in real time." | " shape magnetic core 3 is made up of ferrite or the microcrystallizing alloy material with high permeability.Thermal insulation layer 5 materials are asbestos.

When work, solenoid 6 under high frequency electric effect produces the high-frequency alternating magnetic field of the magnetic line of force along drum watt vertical wraparound, the drum of inner mold watt produces vortex flow by cutting magnetic line surface, the fuel factor of vortex flow raises rapidly drum Wa Wendu, thereby tire base 10 is heated, because the drum watt residing alternating magnetic field intensity of upper and lower two side position is identical, the vortex flow size therefore producing is identical, and temperature rise is consistent.When drum watt middle part is heated to required temperature, its inner phase-change material 9 absorbs and stores unnecessary heat, middle part temperature is no longer changed, and a drum watt upper and lower both sides temperature continues to raise, like this, drum watt middle part is different from both sides temperature, and the caloric requirement while sulfuration to adapt to tire different parts, guarantees tire base 10 overall vulcanized qualities.

Claims (8)

1. the tire Electromagnetic Heating vulcanization plant that heat source temperature segmentation is controlled, be provided with telescopic metal inner mould tool, it is characterized in that, inner mold is by wide drum watt, narrow drum watt, breathing mechanism and with wide drum watt, narrow drum watt is connected and passive gusset composition, wide drum watt is circumferentially arranged alternately with each other with a narrow drum watt edge, the every wide drum watt that composition is bulging watt, narrow drum longitudinal outline curve watt is everywhere all consistent with the inner profile curve of finished tire, inner mold wide drum watt in the time of distending state fits tightly with narrow drum watt, form in shape a complete circle, offer die cavity at the wide drum contacting with gusset watt and a narrow drum watt middle part, surface, in die cavity, embedding has phase-change material, the wide drum of each piece watt and the narrow drum watt back side are provided with two groups of solenoids that inductance value is identical, solenoid is symmetrically distributed in the left and right sides of drum watt longitudinal centre line, direction of winding along bulging watt longitudinally, solenoid is wrapped on " | " shape magnetic core, direction of winding along bulging watt longitudinally, solenoid surface coverage has thermal insulation layer, outermost layer is shell, two " | " shape magnetic cores are symmetrically distributed in the left and right sides of gusset.

2. the controlled tire Electromagnetic Heating vulcanization plant of a kind of heat source temperature segmentation according to claim 1, is characterized in that described two groups of solenoids that are wrapped on two " | " shape magnetic core are in series by a long lead, then is connected with frequency conversion control circuit.

3. the controlled tire Electromagnetic Heating vulcanization plant of a kind of heat source temperature segmentation according to claim 1, is characterized in that described two groups of solenoids that are wrapped on two " | " shape magnetic core are in parallel, is connected respectively with control circuit.

4. the controlled tire Electromagnetic Heating vulcanization plant of a kind of heat source temperature segmentation according to claim 1, is characterized in that the inductance value of described wide drum watt upper solenoid is greater than the inductance value of narrow drum watt upper solenoid, differs 15 μ H～25 μ H.

5. the controlled tire Electromagnetic Heating vulcanization plant of a kind of heat source temperature segmentation according to claim 1, is characterized in that described wide drum watt, narrow drum watt be made up of ferrous material.

6. the controlled tire Electromagnetic Heating vulcanization plant of a kind of heat source temperature segmentation according to claim 1, is characterized in that described gusset and shell be made up of non-magnetic metal material.

7. the controlled tire Electromagnetic Heating vulcanization plant of a kind of heat source temperature segmentation according to claim 1, is characterized in that described wide drum watt, narrow drum watt inside center and end positions are equipped with thermocouple, so that a drum watt surface temperature is monitored in real time.

8. the controlled tire Electromagnetic Heating vulcanization plant of a kind of heat source temperature segmentation according to claim 1, is characterized in that described " | " shape magnetic core is made up of the alloy material with magnetic conduction function.

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