Mould electric heating system and tire vulcanizing machine

Abstract

The utility model discloses a mould electric heating system and tire vulcanizer relates to rubber machinery technical field, mould electric heating system includes mould, the inside of mould is equipped with the tire, mould electric heating system heats the mould, mould heats the outside of tire to make the tire vulcanize and shape, the mold electric heating system uses superheated water as a mold heating medium; electric heating plates are arranged on the upper end face and the lower end face of the mold, the mold is sleeved with an electric heating mold sleeve, cavities are formed in the electric heating plates and the electric heating mold sleeve, electric heaters, temperature sensors and spacer bushes are arranged in the cavities, and two common interfaces are formed in the outer sides of the electric heating plates and the electric heating mold sleeve. The mold electric heating system has the advantages that a traditional steam heating system is replaced by the mold electric heating system, the manufacturing cost of plants and equipment is remarkably reduced, the mold is heated in an electric heating liquid mode, pollution is avoided, the temperature of the mold is balanced, the quality of produced tires is good, high-temperature liquid almost does not run off in the production process, and energy and water resources are saved.

Description

Technical Field

[0001] The utility model relates to the technical field of rubber machinery, in particular to a mold electric heating system and a tire vulcanizer. Background Art

[0002] Tire vulcanizer is an essential equipment for tire production, mainly used for receiving molds and bladders, blowing off foreign matter from molds and bladders, spraying release agents, loading green tires, shaping and vulcanizing green tires, extracting glue fumes, unloading mature tires, inflating and shaping mature tires, cooling mature tires, and conveying mature tires. In the green tire shaping and vulcanization process, the mold heating system provides heat to heat the mold, and the mold heats the green tire in the mold through heat conduction.

[0003] In the known tire vulcanizer, the medium of the mold heating system is steam, which is transported and controlled by thermal pipelines, which are connected to the thermal main pipe, and the thermal main pipe is connected to the boiler plant. The thermal pipelines, thermal main pipes, and boiler plants are expensive and difficult to maintain, and the heat loss during steam transportation is large, which needs to be improved. Utility Model Content

[0004] The utility model aims to provide a mold electric heating system and a tire vulcanizer to solve the problems raised in the above background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A mold electric heating system comprises a mold, a tire is arranged on the inner side of the mold, the mold electric heating system heats the mold, and the mold heats the outer side of the tire to vulcanize and shape the tire, and the mold electric heating system uses superheated water as a medium for heating the mold; electric heating plates are arranged on the upper and lower end surfaces of the mold, and an electric heating mold sleeve is arranged on the outer side of the mold (replacing the mold sleeve of a traditional steam heating system), a cavity is arranged inside the electric heating plate and the electric heating mold sleeve, and an electric heater, a temperature sensor and a spacer sleeve are arranged inside the cavity, and two public interfaces are arranged on the outer side of the electric heating plate and the electric heating mold sleeve, and the two public interfaces are respectively connected to a feed system and a pressure control system.

[0007] As a further solution of the utility model: the electric heating plate is connected in sequence through a ball valve, a connecting pipe and an electric heating mold sleeve.

[0008] As a further solution of the utility model: the water is softened water after being deoxygenated and softened.

[0009] As a further solution of the utility model: the electric heater, the temperature sensor and the spacer are all straight-cylindrical, the spacer is inserted from the outer ring of the electric heating plate and the upper end of the electric heating mold sleeve, and the electric heater and the temperature sensor are inserted into the spacer.

[0010] As a further solution of the utility model: the number of the electric heater and the temperature sensor is at least 2.

[0011] As a further solution of the utility model: the feeding system and the pressure control system are arranged on the end surface of the electric heating plate.

[0012] As a further solution of the utility model: the electric heating plate includes a base plate and a cover plate, the base plate and the cover plate are welded into a container, four mold connection areas are evenly distributed on the base plate, volume areas are arranged between the mold connection areas, a grid-shaped flow channel is arranged on the volume area, and the cover plate is provided with a fillet weld area for sealing the mold connection area and a plug welding hole area for welding to the grid boss of the base plate volume area.

[0013] As a further solution of the utility model: the feeding system includes a filter, a check valve, an electric heating tank, and a cut-off valve (a ball valve may be additionally provided) which are connected in sequence. The electric heating tank is provided with a thermocouple and a liquid level sensor (an electric heater may be additionally provided). The end of the filter away from the check valve inputs power water through a pipeline, and the end of the cut-off valve away from the electric heating tank transports the power water to the electric heating plate and the electric heating mold sleeve cavity through a pipeline.

[0014] As a further solution of the utility model: the pressure control system includes a pressure sensor, one end of the pressure sensor is connected through a pipeline and inserted into the electric heating plate and the electric heating mold sleeve cavity (a ball valve, a filter, and a cut-off valve can be additionally provided), the other end of the pressure sensor is connected to one end of the supercharger and one end of the safety valve, and the other end of the supercharger is connected to one end of the electrical converter.

[0015] A tire vulcanizer uses the above-mentioned mold electric heating system.

[0016] Compared with the prior art, the utility model has the following beneficial effects: the utility model replaces the traditional steam heating system constructed by thermal pipelines, thermal main pipes, and boiler plants with a mold electric heating system, and the cost of plants and equipment is significantly reduced. The mold is heated in the form of electric heating liquid, which is pollution-free, the mold temperature is balanced, the tires produced are of good quality, and there is almost no loss of high-temperature liquid during the production process, saving energy and water resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of a mold electric heating system.

[0018] Figure 2 It is a structural schematic diagram of the electric heating plate.

[0019] Figure 3 A schematic diagram of the structure of the base plate.

[0020] Figure 4 It is a schematic diagram of the structure of the cover plate.

[0021] Figure 5 It is a structural diagram of the feeding system.

[0022] Figure 6 It is a structural diagram of the pressure control system.

[0023] In the figure: 1-electric heating plate, 2-electric heating mold sleeve, 3-electric heater, 4-temperature sensor, 5-feeding system, 6-pressure control system, 7-ball valve, 8-pipe, 9-spacer, 10-tire, 11-mold, 12-bottom plate, 13-cover plate, 14-filter, 15-check valve, 16-electric heating tank, 17-cut-off valve, 18-thermocouple, 19-liquid level sensor, 20-pressure sensor, 21-booster, 22-safety valve, 23-electric converter, A-mold connection area, B-volume area, C-corner weld area, D-plug welding hole area. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0025] See also Figure 1 A mold electric heating system includes a mold 11, a tire 10 is arranged inside the mold 11, the mold electric heating system heats the mold 11, and the mold 11 heats the outside of the tire 10 to vulcanize and shape the tire 10, and the mold electric heating system uses superheated water as a medium for heating the mold 11; electric heating plates 1 are arranged on the upper and lower end surfaces of the mold 11, and an electric heating mold sleeve 2 is arranged on the outside of the mold 11 (replacing the mold sleeve of the traditional steam heating system), a cavity is arranged inside the electric heating plate 1 and the electric heating mold sleeve 2, an electric heater 3, a temperature sensor 4 and a spacer sleeve 9 are arranged in the cavity, and two public interfaces are arranged on the outside of the electric heating plate 1 and the electric heating mold sleeve 2, and the two public interfaces are respectively connected to a feeding system 5 and a pressure control system 6.

[0026] In the specific embodiment: see Figure 1The feeding system 5 delivers water into the cavity of the electric heating plate 1 and the electric heating mold sleeve 2, and the electric heater 3 heats the spacer sleeve 9 to heat the water to produce superheated water. The superheated water heats the electric heating plate 1 and the electric heating mold sleeve 2 through heat conduction. The electric heating plate 1 heats the upper and lower end surfaces of the mold 11, and the electric heating mold sleeve 2 heats the mold 11 from the circumference, so that the mold 11 is heated from the outside to the inside, and the mold 11 heats the outside of the tire 10 to vulcanize and shape the tire 10; the pressure control system 6 is used to control the water pressure in the cavity of the electric heating plate 1 and the electric heating mold sleeve 2 and then control the floating point of the superheated water, reduce the steam generation during excessive heating, and is also used for the discharge of gas dissolved in water and system pressure relief. The following content is explained in terms of a single-mode electric heating system, and the use of dual-mode or multi-mode in parallel or in series is also applicable to the utility model.

[0027] In this example, see Figure 1 The electric heating plate 1 is connected in sequence through the ball valve 7, the connecting pipe 8 and the electric heating mold sleeve 2.

[0028] After the connection, the electric heating plate 1 and the electric heating mold sleeve 2 share the feeding system 5 and the pressure control system 6 through the common interface; the water in the cavities of the electric heating plate 1 and the electric heating mold sleeve 2 can be manually discharged through the ball valve 7.

[0029] In this example, see Figure 1 The water is softened water that has been deoxygenated and softened.

[0030] In this example, see Figure 1 The electric heater 3 , the temperature sensor 4 and the spacer 9 are all straight-cylindrical, the spacer 9 is inserted from the outer ring of the electric heating plate 1 and the upper end of the electric heating mold sleeve 2 , and the electric heater 3 and the temperature sensor 4 are inserted into the spacer 9 .

[0031] After the electric heater 3 and the temperature sensor 4 are inserted into the spacer 9, they are not in contact with water, and are easy to disassemble and replace.

[0032] In this example, see Figure 1 , the number of the electric heater 3 and the temperature sensor 4 is at least 2.

[0033] There are at least two electric heaters 3 and temperature sensors 4, which are distributed in a circle, so that the water temperature can be accurately controlled and detected.

[0034] In this example, see Figure 1 The feeding system 5 and the pressure control system 6 are arranged on the end surface of the electric heating plate 1.

[0035] It is arranged on the end surface, and has little effect on the temperature of the mold 11 when replenishing water, and is also conducive to the discharge of gas from the pressure control system 6.

[0036] In this example, see Figure 2 , Figure 3 and Figure 4The electric heating plate 1 includes a bottom plate 12 and a cover plate 13, which are welded into a container. Four mold connection areas A are evenly distributed on the bottom plate 12, and volume areas B are arranged between the mold connection areas A. A grid-shaped flow channel is arranged on the volume area B. The cover plate 13 is provided with a fillet weld area C for sealing the mold connection area A and a plug welding hole area D for welding with the grid boss of the volume area B of the bottom plate 12.

[0037] A grid-like flow channel is provided on the volume area B, which is beneficial to the heat conduction of the superheated water and improves the uniformity of the water temperature. The rigidity and strength of the electric heating plate 1 are enhanced by welding the plug welding hole area D, which is beneficial to withstand the clamping force.

[0038] In this example, see Figure 5 The feeding system 5 includes a filter 14, a check valve 15, an electric heating tank 16, and a shut-off valve 17 (a ball valve may be additionally provided for manual drainage) which are connected in sequence. The electric heating tank 16 is provided with a thermocouple 18 and a liquid level sensor 19 (an electric heater may be additionally provided to preheat the power water before replenishing it to the electric heating plate 1 and the electric heating mold sleeve 2 to reduce the fluctuation of the water temperature in the electric heating plate 1 and the electric heating mold sleeve 2). The end of the filter 14 away from the check valve 15 inputs the power water through a pipeline, and the end of the shut-off valve 17 away from the electric heating tank 16 transports the power water to the cavities of the electric heating plate 1 and the electric heating mold sleeve 2 through a pipeline.

[0039] When in use, the power water is input into the electric heating plate 1 and the cavity of the electric heating mold sleeve 2 through the filter 14, the check valve 15, the electric heating tank 16, and the cut-off valve 17. The cut-off valve 17 is a pneumatic cut-off valve 17, which can realize automatic replenishment of the power water (preheated water when there is an electric heater) by controlling the power gas source through the solenoid valve.

[0040] In this example, see Figure 6 The pressure control system 6 includes a pressure sensor 20, one end of which is connected to the electric heating plate 1 and the electric heating mold sleeve 2 cavity through a pipeline (a ball valve, a filter, and a cut-off valve can be additionally provided to facilitate manual drainage, filtering of impurities, and automatic water replenishment), and the other end of the pressure sensor 20 is connected to one end of the supercharger 21 and one end of the safety valve 22, and the other end of the supercharger 21 is connected to one end of the electrical converter 23.

[0041] The booster 21 is a pneumatic booster 21, which controls the automatic adjustment of the power gas source pressure by the electric converter 23 through the pressure signal feedback of the pressure sensor 20, and then automatically controls the water pressure in the cavity of the electric heating plate 1 and the electric heating mold sleeve 2. The safety valve 22 is a constant pressure leakage valve, and the pressure is released through the safety valve 22 when the system pressure exceeds the safety value.

[0042] In this example, see Figures 1 to 6 , a tire vulcanizer, using the mold electric heating system as described above.

[0043] As a part of the tire vulcanizer, the mold electric heating system replaces the traditional steam heating system constructed by thermal pipelines, thermal main pipes, and boiler plants.

[0044] The pressure control system 6 of the utility model is used to control the water pressure and thus control the floating point of the superheated water, reduce the steam generation during the over-long heating, and is also used for the discharge of gas dissolved in water and the system pressure relief.

[0045] The mold electric heating system replaces the traditional steam heating system constructed with thermal pipelines, thermal main pipes, and boiler plants, which significantly reduces the cost of plants and equipment. The mold 11 is heated by electric heating water without pollution.

[0046] The mold 11 is heated by electric heating liquid, so the temperature of the mold 11 is balanced, the tire 10 produced is of good quality, and almost no high-temperature liquid is lost during the production process, thus saving energy and water resources.

[0047] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0048] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A mold electric heating system, comprising a mold, a tire is arranged inside the mold, the mold electric heating system heats the mold, and the mold heats the outside of the tire to vulcanize and shape the tire, characterized in that: The mold electric heating system uses superheated water as the medium for heating the mold; electric heating plates are provided on the upper and lower end surfaces of the mold, an electric heating mold sleeve is provided on the outside of the mold, a cavity is provided inside the electric heating plate and the electric heating mold sleeve, an electric heater, a temperature sensor and a spacer sleeve are provided inside the cavity, two public interfaces are provided on the outside of the electric heating plate and the electric heating mold sleeve, the two public interfaces are respectively connected to the feed system and the pressure control system, and the electric heating plate is connected in turn through a ball valve, a connecting pipe and the electric heating mold sleeve.

2. The mold electric heating system according to claim 1, characterized in that: The water is softened water that has been deoxygenated and softened.

3. The mold electric heating system according to claim 1, characterized in that: The electric heater, the temperature sensor and the spacer are all straight-cylindrical, the spacer is inserted from the outer ring of the electric heating plate and the upper end of the electric heating mold sleeve, and the electric heater and the temperature sensor are inserted into the spacer.

4. The mold electric heating system according to claim 3, characterized in that: The number of electric heaters and temperature sensors is at least 2.

5. The mold electric heating system according to claim 1, characterized in that: The feeding system and the pressure control system are arranged on the end surface of the electric heating plate.

6. The mold electric heating system according to claim 1, characterized in that: The electric heating plate includes a bottom plate and a cover plate, which are welded into a container. Four mold connection areas are evenly distributed on the bottom plate, and a volume area is arranged between the mold connection areas. A grid-shaped flow channel is arranged on the volume area. The cover plate is provided with a fillet weld area for sealing the mold connection area and a plug welding hole area for welding with the grid boss of the bottom plate volume area.

7. The mold electric heating system according to claim 1, characterized in that: The feeding system includes a filter, a check valve, an electric heating tank, and a cut-off valve connected in sequence. The electric heating tank is provided with a thermocouple and a liquid level sensor. The end of the filter away from the check valve inputs power water through a pipeline, and the end of the cut-off valve away from the electric heating tank transports the power water to the electric heating plate and the electric heating mold sleeve cavity through a pipeline.

8. The mold electric heating system according to claim 1, characterized in that: The pressure control system includes a pressure sensor, one end of which is connected to the electric heating plate and the electric heating mold sleeve cavity through a pipeline, the other end of the pressure sensor is connected to one end of the supercharger and one end of the safety valve, and the other end of the supercharger is connected to one end of the electrical converter.

9. A tire vulcanizing machine, characterized in that: A mold electric heating system as described in any one of claims 1 to 8 is used.

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