Tire mold

Abstract

The utility model discloses a tire mold, which belongs to the field of tire vulcanization and comprises a mold shell component and a cavity component arranged in the mold shell component. The side wall of the mold shell assembly is provided with a plurality of circumferential installation grooves and at least one set of electric heating units, the number of the electric heating elements in each set of electric heating units is three, the lengths of the three electric heating elements in each set of electric heating units are equal, each electric heating element in each set of electric heating units is arranged in one circumferential installation groove, or each electric heating element in each set of electric heating units is arranged in one circumferential installation groove. At least one group of electric heating units is arranged in each circumferential mounting groove; 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 utility model, the electric heating structure is arranged on the guide ring, so that the energy consumption is reduced, and meanwhile, the problem of three-phase imbalance is solved.

Description

Technical Field

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

[0002] The guide ring of the tire mold can play a role in the mold closing thrust on the pattern block. At the same time, a heating structure can be set on the guide ring to heat the tire mold for vulcanization. The current heating modes are mainly steam heating and electric heating. The steam heating mode requires a heating chamber to be set on the guide ring, which is time-consuming and material-consuming to process, and steam heating consumes a lot of energy. Since most electric heating uses a resistance wire mode, but since alternating current is currently used, if the resistance wire is not arranged properly, it is easy to cause a three-phase imbalance problem, which will impact the workshop power grid.

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

[0004] In view of the problems existing in the prior art, the utility model provides a tire mold, in which an electric heating structure is arranged on a guide ring, thereby reducing energy consumption and solving the three-phase imbalance problem.

[0005] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is as follows: a tire mold comprises a mold shell component and a cavity component arranged in the mold shell component;

[0006] The side wall of the mold shell assembly is provided with a plurality of circumferential mounting grooves and at least one group of electric heating units, the number of electric heating elements in each group of the electric heating units is set to three, the three electric heating elements in each group of the electric heating units are of equal length, each electric heating element in each group of the electric heating units is respectively arranged in a circumferential mounting groove, or at least one group of electric heating units is arranged in the circumferential mounting groove;

[0007] The three electric heating elements in each group of electric heating units 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 ends of the three electric heating elements in each group of electric heating units 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 mold shell assembly includes a guide ring, and a plurality of circumferential mounting grooves are arranged on the outer wall of the guide ring at intervals along the center axis direction of the mold.

[0009] Preferably, the plurality of circumferential mounting grooves are arranged at equal intervals.

[0010] Preferably, the distance between adjacent two axial mounting grooves is greater than 10 mm and less than 200 mm.

[0011] Preferably, a wiring groove is further provided on the outer wall of the guide ring, and the wiring groove is connected to the circumferential installation groove.

[0012] Preferably, the number of the wiring slots is the same as the number of the electric heating elements on the outer wall of the guide ring.

[0013] Preferably, at least one temperature measuring element is provided on the guide ring.

[0014] Preferably, a temperature measuring element is arranged at a corresponding position close to each group of the electric heating units.

[0015] 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.

[0016] The utility model is beneficial in that:

[0017] 1. The utility model arranges a plurality of circumferential installation grooves on the outer wall of the guide ring, which is simple to process. The electric heating elements are arranged in the circumferential installation grooves, the overall electric heating is heated evenly, and the energy utilization rate is high.

[0018] 2. In the utility model, the number of electric heating elements of each group of electric heating units in each circumferential installation groove is set to three, and then through a special connection method with three-phase electricity, the load of any two phases is balanced, which solves the problem of three-phase imbalance and is conducive to the reasonable layout of the vulcanizer in the vulcanization workshop. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic diagram of a tire mold;

[0020] Figure 2 It is a partial schematic diagram of the outer wall of the guide ring of the utility model;

[0021] Figure 3 This is a schematic diagram of the connection between the electric heating elements of each group of electric heating units and the three-phase electricity in the first embodiment of the utility model;

[0022] Figure 4 This is a schematic diagram of the connection between the electric heating elements of each group of electric heating units and the three-phase electricity in the second embodiment of the utility model.

[0023] In the figure: 1-pattern block, 2-slider, 3-guide ring, 4-electric heating element, 5-temperature measuring element, 6-upper cover, 7-upper side plate, 8-lower side plate, 9-base, 10-wiring slot, 11-circumferential mounting slot. DETAILED DESCRIPTION

[0024] In order to facilitate understanding by those skilled in the art, the present invention is further described below in conjunction with the accompanying drawings.

[0025] like Figures 1 to 4As shown, a tire mold includes a mold shell assembly and a cavity assembly arranged in the mold shell assembly. The specific cavity assembly is composed of a pattern block 1, an upper side plate 7 and a lower side plate 8. A slider 2 is provided on the back of the pattern block 1. The mold shell assembly mainly consists of a guide ring 3, an upper cover 6 and a base 9.

[0026] The side wall of the mold shell assembly of the utility model is provided with a plurality of circumferential mounting grooves 11. Specifically, the plurality of circumferential mounting grooves 11 are arranged on the outer wall of the guide ring 3 along the central axis direction of the mold at intervals. The plurality of circumferential mounting grooves 11 are preferably arranged at equal intervals. The distance between adjacent two circumferential mounting grooves 11 is greater than 10 mm and less than 200 mm to ensure the uniformity of heat. At least one group of electric heating units is provided in the circumferential mounting grooves 11. The number of electric heating elements 4 in each group of electric heating units is set to three, and the lengths of the three electric heating elements 4 in each group of electric heating units are equal.

[0027] Embodiment 1

[0028] The three electric heating elements 4 in each group of electric heating units 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.

[0029] Embodiment 2

[0030] One ends of the three electric heating elements 4 in each group of electric heating units are connected together, and the other ends of the three electric heating elements 4 are respectively connected to three phase lines of three-phase electricity.

[0031] The above two embodiments can meet the purpose of load balancing of any two phases, thereby solving the problem of three-phase imbalance, which is beneficial to the reasonable layout of the vulcanizer in the vulcanization workshop.

[0032] Specifically, a wiring groove 10 is also provided on the outer wall of the guide ring 3. The wiring groove 10 is connected to the circumferential installation groove 11 and can be used for wiring and routing the electric heating element 4. The number of the wiring grooves 10 is preferably the same as the number of the electric heating elements 4 on the outer wall of the guide ring 3.

[0033] At least one temperature measuring element 5 is provided on the guide ring 3 of the utility model, and preferably one temperature measuring element 5 is provided at the corresponding position of each group of electric heating units. A vulcanizer control system is also included, and the vulcanizer control system is electrically connected to the temperature measuring element 5 and the electric heating element 4, and can timely control the power output of the electric heating element 4 according to the temperature signal output by the temperature measuring element 5. Before starting heating, the heating temperature is set, and each electric heating element 4 starts to generate heat to provide heat for the entire vulcanizer heating plate.

[0034] 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, characterized in that: It includes a mold shell component and a cavity component arranged in the mold shell component; The side wall of the mold shell assembly is provided with a plurality of circumferential mounting grooves and at least one group of electric heating units, each group of the electric heating units is provided with three electric heating elements, the three electric heating elements of each group of the electric heating units are of equal length, each electric heating element of each group of the electric heating units is respectively arranged in a circumferential mounting groove, or at least one group of electric heating units is arranged in each circumferential mounting groove; 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 is 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; The mold shell assembly includes a guide ring, and a plurality of circumferential mounting grooves are arranged on the outer wall of the guide ring at intervals along the center axis direction of the mold.

2. A tire mold according to claim 1, characterized in that: A plurality of circumferential mounting grooves are arranged at equal intervals.

3. A tire mold according to claim 1, characterized in that: The distance between adjacent two axial mounting grooves is greater than 10 mm and less than 200 mm.

4. A tire mold according to claim 1, characterized in that: A wiring groove is also provided on the outer wall of the guide ring, and the wiring groove is connected to the circumferential installation groove.

5. A tire mold according to claim 4, characterized in that: The number of the wiring slots is the same as the number of the electric heating elements on the outer wall of the guide ring.

6. A tire mold according to claim 1, characterized in that: At least one temperature measuring element is arranged on the guide ring.

7. A tire mold according to claim 6, characterized in that: A temperature measuring element is arranged at a corresponding position close to each group of electric heating elements.

8. A tire mold according to claim 6 or 7, 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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