Tire mold heating structure

Abstract

The utility model discloses a tire mold heating structure, which belongs to the field of tire molds and comprises a heating plate body, and a plurality of annular grooves are arranged on the end face of the heating plate body. At least one group of electric heating elements is arranged in each annular groove, the number of each group of electric heating elements is three, and the lengths of the three electric heating elements in each group are equal; the three electric heating elements in each group are connected end to end, and the three end-to-end connection parts are respectively connected with three phase lines of three-phase power, or one ends of the three electric heating elements in each group are connected together, and the other ends of the three electric heating elements are respectively connected with the three phase lines of the three-phase power. According to the structure, an electric heating mode is adopted, the energy utilization rate is high, and impact on a workshop power grid is avoided.

Description

Technical Field

[0001] The utility model relates to the field of tire molds, in particular to a tire mold heating structure. Background Art

[0002] The heating plates in the tire mold are set on the upper and lower sides. The heating modes are mainly steam heating and electric heating. Steam heating consumes a lot of energy, and electric heating mostly uses resistance wire. However, since alternating current is currently used, if the resistance wire is not arranged properly, it is easy to cause three-phase imbalance, which will cause an impact on the workshop power grid.

[0003] In view of the problems existing in the prior art, the utility model designs and manufactures a tire mold heating structure to overcome the above defects. Utility Model Content

[0004] In order to solve the problems existing in the prior art, the utility model provides a tire mold heating structure which adopts electric heating, has high energy utilization rate and avoids the impact on the workshop power grid.

[0005] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is as follows: a tire mold heating structure, comprising a heating plate body, wherein a plurality of annular grooves are arranged on the end surface of the heating plate body;

[0006] At least one group of electric heating elements is arranged in each of the annular grooves, the number of the electric heating elements in each group is set to three, and the lengths of the three electric heating elements in each group are equal;

[0007] The three electric heating elements in each group are connected end to end, and the three end-to-end connections are respectively connected to the three phase lines of the three-phase electricity, or, one end of the three electric heating elements in each group are connected together, and the other ends of the three electric heating elements are respectively connected to the three phase lines of the three-phase electricity.

[0008] Preferably, the distance between two adjacent annular grooves is greater than 10 mm and less than 200 mm.

[0009] Preferably, the heating plate body is further provided with a wiring groove, and the wiring groove is communicated with the annular groove.

[0010] Preferably, the number of the wiring slots is the same as the number of the electric heating elements on the heating plate body.

[0011] Preferably, the heating plate body is provided with a radial groove connected to the outer circle of the heating plate body.

[0012] Preferably, a backing plate is installed on the end surface of the heating plate body provided with the annular groove, and an avoidance structure is provided on the backing plate to avoid the wiring groove and the vulcanizer installation hole.

[0013] Preferably, the material of the pad is steel or aluminum.

[0014] Preferably, at least one temperature measuring element is disposed on the heating plate body.

[0015] Preferably, a temperature measuring element is arranged at a corresponding position of each group of electric heating elements.

[0016] Preferably, it further comprises a vulcanizing machine control system, and the vulcanizing machine control system is electrically connected to the temperature measuring element and the electric heating element.

[0017] The utility model is beneficial in that:

[0018] 1. The utility model has a plurality of annular grooves arranged on the heating plate body, which is simple to process, and the electric heating element is arranged in the annular groove, so that the overall electric heating is evenly heated and the energy utilization rate is high.

[0019] 2. In the utility model, each group of electric heating elements in each ring groove is set to three, and then through a special connection method with three-phase electricity, any two loads are balanced, solving the problem of three-phase imbalance, which is conducive to the reasonable layout of the vulcanizer in the vulcanization workshop. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A schematic diagram of a tire mold heating structure;

[0021] Figure 2 This is a schematic diagram of the connection between each group of electric heating elements and three-phase electricity in Embodiment 1 of the utility model;

[0022] Figure 3 This is a schematic diagram of the connection between each group of electric heating elements and three-phase electricity in the second embodiment of the utility model;

[0023] Figure 4 It is a schematic diagram of the pad of the utility model;

[0024] Figure 5 It is a schematic diagram of the utility model when the pad and the heating plate body are matched.

[0025] In the figure: 1-heating plate body, 2-ring groove, 3-wiring groove, 4-temperature measuring element, 5-pad, 6-electric heating element. DETAILED DESCRIPTION

[0026] In order to facilitate understanding by those skilled in the art, the present invention is further described below in conjunction with the accompanying drawings.

[0027] like Figures 1 to 5As shown, a tire mold heating structure includes a heating plate body 1, which can be an upper heating plate or a lower heating plate. The tire mold is located between the upper heating plate and the lower heating plate. The upper heating plate and / or the lower heating plate provide the tire mold with the heat required for vulcanization.

[0028] A plurality of annular grooves 2 are provided on the end surface of the heating plate body 1, and at least one group of electric heating elements 6 is provided in each annular groove 2. The distance between two adjacent annular grooves 2 is greater than 10 mm and less than 200 mm to ensure the uniformity of heat. The number of electric heating elements 6 in each group is set to three, and the lengths of the three electric heating elements 6 in each group are equal.

[0029] Embodiment 1

[0030] The three electric heating elements 6 of each group are connected end to end, and the three end-to-end connections are respectively connected to the three phase lines of the three-phase electricity.

[0031] Embodiment 2

[0032] One ends of the three electric heating elements 6 in each group are connected together, and the other ends of the three electric heating elements 6 are respectively connected to three phase lines of three-phase electricity.

[0033] The above two embodiments can meet the purpose of balancing any two loads, thereby solving the problem of three-phase imbalance, which is beneficial to the reasonable layout of the vulcanizer in the vulcanization workshop.

[0034] Specifically, the heating plate body 1 of the utility model is also provided with a wiring groove 3, which is connected to the annular groove 2 and can be used for wiring and routing of the electric heating element 6. The number of the wiring grooves 3 is preferably the same as the number of the electric heating elements 6 on the heating plate body 1. In addition, in order to facilitate the connection with the external power supply, the heating plate body 1 is preferably provided with a radial groove connected to the outer circle of the heating plate body 1, and the radial groove preferably passes through the position of the wiring groove 3. Specifically, the radial groove can also be set on the upper cover or base in contact with the heating plate body, without being set on the heating plate body, which also meets the use requirements.

[0035] To further protect the electric heating element 6, a pad 5 is preferably installed on the end face of the heating plate body 1 having the annular groove 2. The pad 5 is provided with an avoidance structure to avoid the wiring groove 3 and the vulcanizer mounting hole and other features. At the same time, to ensure thermal conductivity, steel or aluminum with good thermal conductivity is preferably used.

[0036] At least one temperature measuring element 4 is arranged on the heating plate body 1 of the utility model, and preferably one temperature measuring element 4 is arranged correspondingly at the corresponding position of each group of electric heating elements 6. A vulcanizer control system is also included, and the vulcanizer control system is electrically connected to the temperature measuring element 4 and the electric heating element 6, and can timely control the power output of the electric heating element 6 according to the temperature signal output by the temperature measuring element 4. Before starting heating, the heating temperature is set, and each electric heating element 6 starts to generate heat to provide heat for the entire vulcanizer heating plate.

[0037] It should be understood that the purpose of these embodiments is only to illustrate the utility model and is not intended to limit the protection scope of the utility model. In addition, it should also be understood that after reading the technical content of the utility model, those skilled in the art can make various changes, modifications and / or variations to the utility model, and all of these equivalent forms also fall within the protection scope defined by the claims attached to this application.

Claims

1. A tire mold heating structure, characterized in that: It comprises a heating plate body, and a plurality of annular grooves are arranged on the end surface of the heating plate body; At least one group of electric heating elements is arranged in each of the annular grooves, the number of the electric heating elements in each group is set to three, and the lengths of the three electric heating elements in each group are equal; The three electric heating elements in each group are connected end to end, and the three end-to-end connections are respectively connected to the three phase lines of the three-phase electricity, or, one end of the three electric heating elements in each group are connected together, and the other ends of the three electric heating elements are respectively connected to the three phase lines of the three-phase electricity.

2. A tire mold heating structure according to claim 1, characterized in that: The distance between two adjacent ring grooves is greater than 10 mm and less than 200 mm.

3. A tire mold heating structure according to claim 1, characterized in that: The heating plate body is also provided with a wiring groove, and the wiring groove is communicated with the annular groove.

4. A tire mold heating structure according to claim 3, characterized in that: The number of the wiring slots is the same as the number of the electric heating elements on the heating plate body.

5. The tire mold heating structure according to claim 1, characterized in that: The heating plate body is provided with a radial groove which is communicated with the outer circle of the heating plate body.

6. A tire mold heating structure according to claim 3, characterized in that: A backing plate is installed on the end surface of the heating plate body provided with an annular groove, and an avoidance structure is provided on the backing plate to avoid the wiring groove and the vulcanizing machine installation hole.

7. A tire mold heating structure according to claim 6, characterized in that: The material of the pad is steel or aluminum.

8. The tire mold heating structure according to claim 1, characterized in that: At least one temperature measuring element is arranged on the heating plate body.

9. A tire mold heating structure according to claim 8, characterized in that: A temperature measuring element is arranged at a corresponding position of each group of electric heating elements.

10. A tire mold heating structure according to claim 9, characterized in that: It also includes a vulcanizing machine control system, which is electrically connected to the temperature measuring element and the electric heating element.

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