Tire mold structure

Abstract

The present invention relates to the technical field of tire molds, and in particular to a tire mold structure, comprising an external frame, an internal mold provided on the inner side of the external frame, a heating element provided between the external frame and the internal mold, a plurality of connecting elements provided between the heating element and the external frame and between the heating element and the internal mold, a first heat-insulating layer provided on the outside of the external frame, a second heat-insulating layer provided between the heating element and the external frame; and a temperature sensor provided in the internal mold. Thus, the present invention can store heat to the maximum extent, reduce heat loss, and save costs without affecting tire vulcanization.

Description

Technical Field

[0001] The invention relates to the technical field of tire molds, and in particular to a tire mold structure. Background Art

[0002] Tire molds are essential equipment for tire vulcanization and molding. In actual production processes, tire factories mostly use steam as the main heat energy for mold vulcanization. During the tire vulcanization process, the tire mold needs to be placed between the upper hot plate and the lower hot plate of the vulcanizer and heated to a temperature of about 180°C to maintain vulcanization. This process requires a lot of heat.

[0003] At present, the mold is easily corroded by steam during long-term use, which shortens its service life. In addition, the steam heating method is not only difficult to control the vulcanization temperature, but also causes uneven heating, affecting the vulcanization effect. After a single heating, the mold has poor heat storage capacity, and due to the good thermal conductivity of the mold, a large amount of heat will be wasted during the heating process.

[0004] How to maximize heat storage, reduce heat loss and save costs without affecting tire vulcanization has become a technical problem that needs to be broken through.

[0005] In summary, the prior art obviously has inconveniences and defects in practical use, so it is necessary to improve it. Summary of the invention

[0006] In view of the above-mentioned defects, the object of the present invention is to provide a tire mold structure, which has a simple structure and is easy to use. It can store heat to the maximum extent, reduce heat loss and save costs without affecting tire vulcanization.

[0007] In order to achieve the above-mentioned purpose, the present invention provides a tire mold structure, including an external frame, an internal mold is provided on the inner side of the external frame, a heating element is provided between the external frame and the internal mold, a plurality of connecting members are inserted between the heating element and the external frame and between the heating element and the internal mold, a first insulation layer is provided on the outside of the external frame, and a second insulation layer is provided between the heating element and the external frame.

[0008] A temperature sensor is arranged in the inner mold.

[0009] According to the tire mold structure of the present invention, the external frame includes a bow-shaped seat, a base and an upper cover, the internal mold includes a tread block, a lower side plate and an upper side plate, and the inner side of the bow-shaped seat is connected to the tread block, the inner side of the base is connected to the lower side plate, and the inner side of the upper cover is connected to the upper side plate.

[0010] According to the tire mold structure of the present invention, the heating element is located between the arch seat and the pattern block, between the base and the lower side plate, and between the upper cover and the upper side plate.

[0011] According to the tire mold structure of the present invention, a support layer is provided on the outside of the second insulation layer, a flexible layer is provided on the side of the second insulation layer close to the heating element, a plurality of staggered insulation tubes are provided in the flexible layer, and insulation liquid is provided in the insulation tubes.

[0012] According to the tire mold structure of the present invention, the second heat-insulating layer is located between the heating element and the arched seat, between the heating element and the base, and between the heating element and the upper cover.

[0013] According to the tire mold structure of the present invention, the insulation liquid is heat-conducting oil.

[0014] According to the tire mold structure of the present invention, the heating element is a polymer electric heating plate.

[0015] The purpose of the present invention is to provide a tire mold structure, including an external frame, a heating element, and an internal mold that cooperate with each other to vulcanize and shape the tire; the connecting piece can not only fix the position of the heating element, the external frame, and the internal mold, but also increase the heat transfer effect between the heating element and the internal mold, and reduce the heat transfer time; the insulation liquid can store most of the heat, effectively prevent heat loss, slow down the cooling rate of the heating element, and save costs. In summary, the beneficial effects of the present invention are: it can store heat to the maximum extent without affecting the vulcanization of the tire, reduce heat loss, and save costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a longitudinal cross-sectional view of the present invention;

[0017] Figure 2 It is a schematic diagram of the structure of the second thermal insulation layer at the pattern block;

[0018] Figure 3 for Figure 2 Enlarged view of part A;

[0019] In the figure: 1-external frame, 11-middle sleeve, 12-middle sleeve inlay ring, 13-bow seat, 14-base, 15-upper cover, 2-inner mold, 21-upper side plate, 22-lower side plate, 23-pattern block, 3-heating element, 4-connecting element, 5-first insulation layer, 6-second insulation layer, 61-support layer, 62-flexible layer, 63-insulation pipe, 631-insulation liquid. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0021] See also Figure 1 The present invention provides a tire mold structure, including an external frame 1, the external frame 1 includes a middle sleeve 11, a middle sleeve ring 12, a bow seat 13, a base 14 and an upper cover 15, the external frame 1 can provide extrusion power for the vulcanization of the tire; the inner sides of the bow seat 13, the base 14 and the upper cover 15 are all provided with an internal mold 2, and the inner side of the bow seat 13 is connected to the pattern block 23, the inner side of the base 14 is connected to the lower side plate 22, and the inner side of the upper cover 15 is connected to the upper side plate 21. The internal mold 2 can squeeze the tire under the push of the external frame 1, so as to shape the tire.

[0022] In the description of the present invention, it should be noted that the terms "upper", "lower", "inside", "outside", "top / bottom" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0023] In the description of the present invention, it should be noted that, unless otherwise clearly stipulated and limited, the terms "provided with", "sleeved / connected", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection. It can be a mechanical connection or an electrical connection. It can be a direct connection or an indirect connection through an intermediate medium. It can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0024] See also Figure 1A heating element 3 that can provide heat is provided between the external frame 1 and the internal mold 2, wherein the heating element 3 is located between the bow seat 13 and the pattern block 23, between the base 14 and the lower side plate 22, and between the upper cover 15 and the upper side plate 21; and a plurality of connecting members 4 are provided between the heating element 3 and the external frame 1, and between the heating element 3 and the internal mold 2. The connecting members 4 can not only fix the positions of the heating element 3, the external frame 1, and the internal mold 2, but also increase the heat transfer effect between the heating element 3 and the internal mold 2 and reduce the heat transfer time; a first thermal insulation layer 5 that can prevent heat loss is provided on the outside of the external frame 1. The first thermal insulation layer 5 is a coating layer made of a thermal insulation material with a certain strength. When the heating element 3 heats the internal mold 2, the heating element 3 will also transfer heat to the external frame 1. The first thermal insulation layer 5 can slow down the heat loss rate in the external frame 1; a temperature sensor is provided in the internal mold 2 to detect whether the temperature meets the vulcanization requirements.

[0025] In the present invention, the heating element 3 is a polymer electric heating plate, and the connecting element 4 is a bolt.

[0026] See also Figure 1 to Figure 3 A second heat-insulating layer 6 is provided between the heating element 3 and the external frame 1 (i.e., between the heating element 3 and the arched seat 13, between the heating element 3 and the base 14, and between the heating element 3 and the upper cover 15), and a supporting layer 61 is provided outside the second heat-insulating layer 6 ( Figure 2 The second thermal insulation layer 6 in the figure is only a shape in one state, and the second thermal insulation layer 6 can be molded into various shapes according to its position. The supporting layer 61 is a coating layer made of thermal insulation material with a certain strength (similar to the structure of the first thermal insulation layer 5). The second thermal insulation layer 6 is provided with a flexible layer 62 on the side close to the heating element 3. The flexible layer 62 is a coating layer made of flexible thermal insulation material (with a certain deformation ability). A plurality of staggered thermal insulation pipes 63 are provided in the flexible layer 62, and thermal insulation liquid 631 is provided in the thermal insulation pipes 63. When the heating element 3 heats the internal mold 2 again, the flexible layer 62 will also absorb the heat of the heating element 3, and then transfer the absorbed heat to the thermal insulation pipe 63, and the thermal insulation pipe 63 will transfer the heat to the thermal insulation liquid 631. The thermal insulation liquid 631 can store most of the heat, effectively prevent heat loss, slow down the cooling rate of the heating element 3, and save costs.

[0027] Preferably, the insulation liquid 631 is heat transfer oil.

[0028] The heating element 3 is connected to a power source. When the temperature sensor sends a signal that the temperature reaches the standard, the tire to be processed can be placed inside the internal mold 2 and the tire can be vulcanized and shaped. During the entire vulcanization process, the first insulation layer 5 and the second insulation layer 6 can slow down the heat loss of the heating element 3.

[0029] The present invention provides a tire mold structure, including an external frame, a heating element, and an internal mold that cooperate with each other to vulcanize and shape the tire; the connecting piece can not only fix the positions of the heating element, the external frame, and the internal mold, but also increase the heat transfer effect between the heating element and the internal mold, and reduce the heat transfer time; the insulation liquid can store most of the heat, effectively prevent heat loss, slow down the cooling speed of the heating element, and save costs. In summary, the beneficial effects of the present invention are: it can store heat to the maximum extent without affecting the vulcanization of the tire, reduce heat loss, and save costs.

[0030] Of course, the present invention may have many other embodiments. Without departing from the spirit and essence of the present invention, those skilled in the art may make various corresponding changes and modifications based on the present invention, but these corresponding changes and modifications should all fall within the scope of protection of the claims attached to the present invention.

Claims

1. A tire mold structure, characterized in that: It comprises an external frame, an internal mold is arranged on the inner side of the external frame, a heating element is arranged between the external frame and the internal mold, a plurality of connecting pieces are arranged between the heating element and the external frame and between the heating element and the internal mold, a first heat-insulating layer is arranged on the outside of the external frame, and a second heat-insulating layer is arranged between the heating element and the external frame; A temperature sensor is provided in the internal mold; The external frame includes a bow-shaped seat, a base and an upper cover, the internal mold includes a pattern block, a lower side plate and an upper side plate, and the inner side of the bow-shaped seat is connected to the pattern block, the inner side of the base is connected to the lower side plate, and the inner side of the upper cover is connected to the upper side plate. A supporting layer is provided on the outside of the second thermal insulation layer, and a flexible layer is provided on one side of the second thermal insulation layer close to the heating element, and a plurality of staggered thermal insulation pipes are provided in the flexible layer, and thermal insulation liquid is provided in the thermal insulation pipes.

2. The tire mold structure according to claim 1, characterized in that: The heating element is located between the arch seat and the pattern block, between the base and the lower side plate, and between the upper cover and the upper side plate.

3. The tire mold structure according to claim 1, characterized in that: The second heat-insulating layer is located between the heating element and the arched seat, between the heating element and the base, and between the heating element and the upper cover.

4. The tire mold structure according to claim 1, characterized in that: The insulation liquid is heat-conducting oil.

5. The tire mold structure according to claim 1, characterized in that: The heating element is a polymer electric heating plate.

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