A tire vulcanization apparatus protection device

Abstract

The utility model discloses a kind of tire vulcanization equipment protection devices, belong to tire vulcanization protection technical field, including tire mould, tire capsule is equipped in tire mould, tire mould and tire capsule form the accommodating cavity for placing tire blank;Electric heating element is arranged inside tire capsule and / or accommodating cavity outside;Electric heating element is coupled with power supply, and relay is equipped between electric heating element and power supply;Temperature fuse is close to electric heating element setting;Controller is coupled with temperature fuse and relay respectively;The electric heating element of the utility model is arranged inside tire capsule and / or accommodating cavity outside, temperature fuse is added close to electric heating element, when medium circulation element or temperature control element is abnormal, electric heating element long-term full-load operation, temperature of the place close to electric heating element is too high and can make temperature fuse fuse, can cut off power supply in time, improve the service life of electric heating element, and reduce the damage probability of tire vulcanization equipment.

Description

Technical Field

[0001] This utility model relates to the field of tire vulcanization protection technology, specifically to a tire vulcanization equipment protection device. Background Technology

[0002] With the advancement of energy conservation, environmental protection, and the concept of green tires, more and more tire manufacturers are choosing electric heating vulcanizing machines for tire vulcanization.

[0003] Electric heating vulcanizing machines typically consist of an internal heating section and an external heating section. The internal heating section generally includes heating elements, a medium circulation element, and a temperature control element. The heating elements provide heat to the inside of the tire bladder, the medium circulation element improves the temperature uniformity inside the tire bladder, and the temperature control element monitors the temperature of the heating medium to maintain it within a suitable temperature range. If the medium circulation element or the temperature control element malfunctions, the heater may operate at full load for extended periods, easily leading to overheating and damage to the heating elements. Similarly, the external heating section generally includes a heating element (including a heating plate and mold), heating elements, and a temperature control element. If the temperature control element malfunctions, the heating elements may continue to operate, potentially damaging them. Because heating elements are expensive and difficult to replace, problems with them can cause significant losses to the tire vulcanizing equipment.

[0004] Therefore, developing a tire vulcanizing equipment protection device that can promptly cut off the power supply when the electric heating element malfunctions, thereby improving the lifespan of the electric heating element and reducing the probability of equipment damage, is an urgent problem to be solved at this stage. Summary of the Invention

[0005] To address the problems existing in the prior art, this utility model provides a protection device for tire vulcanizing equipment. The electric heating element is set inside the tire bladder and / or outside the receiving cavity. A temperature fuse is added near the electric heating element. When the electric heating element malfunctions, the temperature will be too high and the temperature fuse will melt, which can cut off the power supply in time, improve the service life of the electric heating element, and reduce the probability of damage to the tire vulcanizing equipment.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] This utility model provides a protective device for tire vulcanizing equipment, including:

[0008] A tire mold, wherein a tire capsule is provided inside the tire mold, and the tire mold and the tire capsule form a receiving cavity for placing a tire blank;

[0009] An electric heating element is disposed inside the tire bladder and / or outside the receiving cavity; the electric heating element is coupled to a power source, and a relay is provided between the electric heating element and the power source;

[0010] A temperature fuse is disposed near the electric heating element;

[0011] A controller, which is coupled to the temperature fuse and the relay respectively.

[0012] As a preferred technical solution, the electric heating element is coupled to a temperature control element.

[0013] As a preferred technical solution, the tire bladder is provided with a medium circulation element, which can drive the heating medium inside the tire bladder to circulate and convect.

[0014] As a preferred technical solution, the medium circulation element is configured as an impeller or a fan;

[0015] And / or, the medium circulation element is connected to a transmission component that drives its rotation;

[0016] And / or, the tire bladder is provided with a flow guiding component that matches the medium circulation element, the flow guiding component being able to guide the circulation path of the heating medium within the tire bladder.

[0017] As a preferred technical solution, when the electric heating element is located inside the tire bladder, the electric heating element is configured as an electric heating tube, an induction heater, an infrared heater, or a heat exchanger.

[0018] As a preferred technical solution, the bottom of the tire mold is provided with a ring seat, the electric heating element and the temperature fuse are both fixed on the ring seat, and the ring seat is provided with a medium inlet and a medium outlet;

[0019] And / or, the distance between the temperature fuse and the electric heating element is set to 5-15mm.

[0020] As a preferred technical solution, when the electric heating element is located outside the receiving cavity, the electric heating element is disposed on the electric heating plate and / or the tire mold.

[0021] As a preferred technical solution, the electric heating plate and / or the tire mold are provided with a mounting groove for placing the temperature fuse.

[0022] As a preferred technical solution, a contactor is coupled between the relay and the power supply, and the contactor is coupled to the controller;

[0023] And / or, the controller is configured as a PLC.

[0024] As a preferred technical solution, the temperature fuse is provided with a protective shell, and the protective shell is made of a thermally conductive material.

[0025] The beneficial effects of this utility model are as follows:

[0026] 1. The electric heating element of this utility model is set inside the tire bladder and / or outside the receiving cavity. A temperature fuse is added near the electric heating element. When the medium circulation element or temperature control element malfunctions, the electric heating element will run at full load for a long time. The temperature near the electric heating element will be too high, which will cause the temperature fuse to melt. This can cut off the power supply in time, improve the service life of the electric heating element, and reduce the probability of damage to the tire vulcanizing equipment.

[0027] 2. The temperature fuse of this utility model is provided with a protective shell made of thermally conductive material, which can effectively prevent damage to the temperature fuse; furthermore, the protective shell is preferably sealed to the ring seat to maintain its internal sealing. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the overall structure of a first embodiment of a tire vulcanizing equipment protection device according to the present invention;

[0029] Figure 2 for Figure 1 Enlarged view of region A in the middle;

[0030] Figure 3 This is a schematic diagram of the overall structure of a second embodiment of a tire vulcanizing equipment protection device according to the present invention;

[0031] Figure 4 This is a schematic diagram of the overall structure of a third embodiment of the protective device for tire vulcanizing equipment according to the present invention;

[0032] Figure 5 This is a schematic diagram of the fourth embodiment of the protective device for tire vulcanizing equipment according to the present invention;

[0033] Figure 6 This is a schematic diagram of the fifth embodiment of the protective device for tire vulcanizing equipment according to the present invention.

[0034] In the figure: 1-Tire mold, 11-Receiving cavity, 12-Media circulation element, 13-Flow guiding assembly, 14-Ring seat, 2-Tire capsule, 3-Electric heating element, 4-Temperature fuse, 41-Protective shell, 5-Temperature control element, 6-Electric heating plate. Detailed Implementation

[0035] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to the accompanying drawings. Example 1

[0036] Please refer to Figure 1 and Figure 2 This invention provides a first embodiment of a protective device for tire vulcanizing equipment, comprising a tire mold 1 that provides the external temperature and pressure required for tire vulcanization; a tire capsule 2 inside the tire mold 1, forming a cavity 11 for placing the tire blank; an electric heating element 3 inside the tire capsule 2 to provide internal temperature for tire vulcanization and ensure the heat required for tire vulcanization; a temperature fuse 4 located near the electric heating element 3; the electric heating element 3 coupled to a power source, with a relay between the electric heating element 3 and the power source; and a controller coupled to both the temperature fuse 4 and the relay. When the electric heating element 3 malfunctions, the heat transferred to the temperature fuse 4 will cause the temperature fuse 4 to reach its melting point. When the temperature fuse 4 melts, a melting signal is transmitted to the controller, which controls the relay to disconnect according to the melting signal, promptly cutting off the power supply. The electric heating element 3 stops working, preventing damage to the electric heating element 3, improving its service life, and reducing the probability of damage to the tire vulcanizing equipment.

[0037] It should be noted that the electric heating element 3 should be coupled with a temperature control element 5. The temperature control element 5 can detect the temperature of the heating medium inside the tire bladder 2 and control the working intensity of the electric heating element 3 to keep the heating medium within a suitable temperature range. When the temperature control element 5 malfunctions, it will cause the electric heating element 3 to work continuously, causing the temperature of the heating medium inside the tire bladder 2 to be too high. Specifically, the temperature control element 5 can be a resistance temperature detector (RTD) or a thermocouple.

[0038] For details, please refer to Figure 2 The distance L between the temperature fuse 4 and the electric heating element 3 is preferably set to 5-15mm; meanwhile, the electric heating element 3 is preferably set as an electric heating tube, an induction heater, an infrared heater, or a heat exchanger.

[0039] In this embodiment, please refer to Figure 1 and Figure 2 The tire capsule 2 is equipped with a medium circulation element 12. The medium circulation element 12 can drive the heating medium inside the tire capsule 2 to circulate and carry away the heat generated by the electric heating element 3 in real time, thereby improving the temperature uniformity inside the tire capsule 2. When the medium circulation element 12 malfunctions, it cannot carry away the heat generated by the electric heating element 3 in time, which will cause the electric heating element 3 to overheat.

[0040] Specifically, the medium circulation element 12 is preferably an impeller or a fan; further, the medium circulation element 12 should be connected to a transmission component that drives its rotation, the transmission component provides power to the medium circulation element 12 and drives the medium circulation element 12 to rotate.

[0041] In this embodiment, please refer to Figure 1 and Figure 2 The bottom of the tire mold 1 is provided with a ring seat 14, and the electric heating element 3 and the temperature fuse 4 are fixed on the ring seat 14 to ensure the stability of the electric heating element 3 and the temperature fuse 4. The ring seat 14 is provided with a medium inlet and a medium outlet. The medium inlet and the medium outlet can be one or more, or the medium inlet and the medium outlet can be shared, to realize the supply and discharge of the heating medium.

[0042] Further, please refer to Figure 1 and Figure 2 The thermal fuse 4 is provided with a protective shell 41. The protective shell 41 is made of a heat-conducting material, such as metal, which can effectively prevent damage to the thermal fuse 4. Furthermore, the protective shell 41 is preferably installed through the ring seat 14 and is sealed to the ring seat 14 to maintain its internal airtightness.

[0043] In this embodiment, a contactor can also be coupled between the relay and the power supply. The contactor is coupled to the controller. When the thermal fuse 4 blows, the controller controls the contactor to disconnect, ensuring that the power supply can be disconnected.

[0044] Specifically, the preferred controller is a PLC. Example 2

[0045] Please refer to Figure 3 The main difference between this embodiment and embodiment one is that the tire capsule 2 is provided with a flow guiding component 13 that matches the medium circulation element 12. The flow guiding component 13 can guide the heating medium in the tire capsule 2 to circulate along the optimal path. Specifically, the flow guiding component 13 is set as a flow guiding shroud, which has an air outlet and an air return outlet. The temperature fuse 4 is located at the air return outlet. Example 3

[0046] Please refer to Figure 4 The main difference between this embodiment and embodiment two is that the temperature fuse 4 is located at the air outlet of the air guide assembly 13.

[0047] It needs to be explained that, Figure 1 , Figure 4 and Figure 5 The arrows in the diagram all point in the direction of the flow of the heating medium. Example 4

[0048] Please refer to Figure 5The main difference between this embodiment and embodiment one is that the electric heating element 3 is located outside the receiving cavity 11 and is located on the electric heating plate 6; correspondingly, the electric heating plate 6 is provided with a mounting groove for placing the temperature fuse 4 near the electric heating element 3. Example 5

[0049] Please refer to Figure 6 The main difference between this embodiment and embodiment four is that the electric heating element 3 is disposed on the tire mold 1, and correspondingly, the tire mold 1 is provided with a mounting groove for placing the temperature fuse 4 near the electric heating element 3.

[0050] It should be noted that in actual use, Embodiment 1, Embodiment 4 and Embodiment 5 can be used simultaneously, with the aim of improving the service life of the electric heating element 3 while ensuring the tire vulcanization effect.

[0051] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. For those skilled in the art, the present utility model can have various modifications and variations. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A protective device for tire vulcanizing equipment, characterized in that, include: A tire mold (1) is provided with a tire capsule (2) inside the tire mold (1), and the tire mold (1) and the tire capsule (2) form a receiving cavity (11) for placing the tire embryo. An electric heating element (3) is provided inside the tire bladder (2) and / or outside the receiving cavity (11); the electric heating element (3) is coupled to a power source, and a relay is provided between the electric heating element (3) and the power source; A temperature fuse (4) is disposed near the electric heating element (3); The controller is coupled to the temperature fuse (4) and the relay respectively.

2. The protective device for tire vulcanizing equipment according to claim 1, characterized in that, The electric heating element (3) is coupled to a temperature control element (5).

3. The protective device for tire vulcanizing equipment according to claim 1, characterized in that, The tire capsule (2) is provided with a medium circulation element (12), which can drive the heating medium inside the tire capsule (2) to circulate and convect.

4. The protective device for tire vulcanizing equipment according to claim 3, characterized in that, The medium circulation element (12) is configured as an impeller or a fan; And / or, the medium circulation element (12) is connected to a transmission component that drives its rotation; And / or, the tire capsule (2) is provided with a flow guide assembly (13) that matches the medium circulation element (12), the flow guide assembly (13) being able to guide the circulation path of the heating medium in the tire capsule (2).

5. A protective device for tire vulcanizing equipment according to claim 1 or 3, characterized in that, When the electric heating element (3) is located inside the tire bladder (2), the electric heating element (3) is configured as an electric heating tube, an induction heater, an infrared heater, or a heat exchanger.

6. A protective device for tire vulcanizing equipment according to claim 5, characterized in that, The bottom of the tire mold (1) is provided with a ring seat (14), the electric heating element (3) and the temperature fuse (4) are both fixed on the ring seat (14), and the ring seat (14) is provided with a medium inlet and a medium outlet; And / or, the distance between the temperature fuse (4) and the electric heating element (3) is set to 5-15mm.

7. A protective device for tire vulcanizing equipment according to claim 1, characterized in that, When the electric heating element (3) is located outside the receiving cavity (11), the electric heating element (3) is disposed on the electric heating plate (6) and / or the tire mold (1).

8. A protective device for tire vulcanizing equipment according to claim 7, characterized in that, The electric heating plate (6) and / or the tire mold (1) are provided with mounting grooves for placing the temperature fuse (4).

9. A protective device for tire vulcanizing equipment according to claim 1, characterized in that, A contactor is coupled between the relay and the power supply, and the contactor is coupled to the controller; And / or, the controller is configured as a PLC.

10. A protective device for tire vulcanizing equipment according to claim 1, characterized in that, The temperature fuse (4) is provided with a protective shell (41) on the outside, and the protective shell (41) is made of a thermally conductive material.

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