Heat preservation structure and tire mold

Abstract

The utility model discloses a heat preservation structure and a tire mold, and belongs to the technical field of tire vulcanization. Comprising a first heat-insulating layer and a second heat-insulating layer; the second heat insulation layer comprises a plurality of vacuum heat insulation plates, and the vacuum heat insulation plates are sequentially spliced to cover the heat insulation and heat preservation area of the component; the first heat insulation layer is located on the side, facing a high-temperature area, of the second heat insulation layer, and gaps between the first heat insulation layer and the vacuum heat insulation plates and gaps between every two adjacent vacuum heat insulation plates are filled with the first heat insulation layer deformed after extrusion. The tire mold comprises a heat preservation sleeve and a guide ring, and the heat preservation sleeve is arranged on the outer side of the guide ring in a sleeving mode. The heat preservation sleeve is of the heat preservation structure. The first heat insulation layer which is soft and easy to deform is combined with the vacuum heat insulation plate, so that the flat vacuum heat insulation plate can be applied to a guide ring heat insulation and heat preservation technology of a cylindrical surface; and the heat preservation effect is greatly improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to tire vulcanization technical field, concretely relates to a heat preservation structure and tire mould. BACKGROUND

[0002] Among the heat preservation materials that have been applied in the field of heat preservation and energy saving, the thermal conductivity of the vacuum heat insulation plate can reach 0.002 W / (m.k), and the heat insulation effect is excellent. However, the vacuum heat insulation plate is limited by the manufacturing process, and a vacuum needs to be formed inside the vacuum heat insulation plate and sealed, and the size cannot be changed after processing. Therefore, the vacuum heat insulation plate can only be manufactured in a batch as a flat plate structure or a large number of fixed-size arc structures.

[0003] For the single-piece small-batch special-purpose tire mould, the size and features are variable, and the working temperature is about 180 DEG C. The current vacuum heat insulation plate cannot meet the use requirements of the customized tire mould, and cannot withstand the temperature during the working of the tire mould.

[0004] In order to further save energy and reduce carbon, reduce the heat loss of the tire mould, a structure scheme that can apply the vacuum heat insulation plate to the tire mould is needed. SUMMARY

[0005] In order to solve the problems in the prior art, the utility model provides a kind of heat preservation structure and tire mould, and vacuum heat insulation plate is applied to the heat preservation technology of tire mould, and energy loss is reduced.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0007] On the one hand, the utility model provides a kind of heat preservation structure for heat insulation or heat preservation of components;Including first heat insulation layer and second heat insulation layer;

[0008] The second heat insulation layer includes a plurality of vacuum heat insulation plates, and the plurality of vacuum heat insulation plates are sequentially spliced to cover the heat insulation and heat preservation area of the component.

[0009] The first heat insulation layer is located on one side of the second heat insulation layer facing the high-temperature area, and the first heat insulation layer after deformation by extrusion fills the gap between the first heat insulation layer and the vacuum heat insulation plate and the gap between the adjacent two vacuum heat insulation plates.

[0010] In the above heat preservation structure, the first heat insulation layer is made of soft and high-temperature resistant heat preservation material.

[0011] In the above heat preservation structure, the first heat insulation layer is made of one of polyimide foam material, ceramic fiber felt, aluminum silicate fiber felt, basalt fiber felt and glass fiber felt.

[0012] In the thermal insulation structure, the second thermal insulation layer further comprises a plurality of pockets, the pockets are connected with the first thermal insulation layer, and the vacuum insulation panels are located in the pockets.

[0013] In the thermal insulation structure, the thickness of the first thermal insulation layer after compression and fixation ranges from 1 mm to 10 mm.

[0014] In the thermal insulation structure, the vacuum insulation panel is a rectangular flat plate with a width ranging from 30 mm to 50 mm.

[0015] In the thermal insulation structure, the side of the second thermal insulation layer away from the first thermal insulation layer is provided with a third thermal insulation layer.

[0016] In the thermal insulation structure, the third thermal insulation layer is made of one of polyimide foam material, glass fiber felt, ceramic fiber felt, aluminum silicate fiber felt, basalt fiber felt and rubber plastic thermal insulation material.

[0017] In the thermal insulation structure, the first thermal insulation layer, the second thermal insulation layer and the third thermal insulation layer are sequentially arranged from inside to outside, and the outer side of the third thermal insulation layer is further provided with a fourth thermal insulation layer.

[0018] In the thermal insulation structure, the fourth thermal insulation layer is made of one of flame-retardant silica gel cloth, glass fiber coated silica gel cloth, Teflon coated cloth, graphite coated cloth, steel wire reinforced cloth and metal shell.

[0019] In one aspect, the utility model provides a tire mold, including heat preservation sleeve and guide ring, the heat preservation sleeve is sleeved in the outside of guide ring, the heat preservation sleeve uses above -mentioned heat preservation structure.

[0020] The utility model has the advantages of:

[0021] The heat preservation structure combines the first thermal insulation layer with the vacuum insulation panel, so that the flat vacuum insulation panel can be applied to the thermal insulation and heat preservation technology of the cylindrical surface.

[0022] The joint gaps of the plurality of vacuum insulation panels after splicing can be filled by the first thermal insulation layer, which plays a good heat preservation effect, and the overall heat preservation effect of the heat preservation structure is greatly improved.

[0023] Meanwhile, the first thermal insulation layer can reduce the temperature of the vacuum insulation panel, so that the contact temperature of the vacuum insulation panel is within the tolerance temperature, thereby allowing the vacuum insulation panel to be applied to a high temperature environment, expanding the application field of the vacuum insulation panel, and solving the problem that the vacuum insulation panel cannot be applied to a higher temperature tire mold.

[0024] The heat preservation structure of the present application allows the splicing of the vacuum heat insulation plate, enhances the applicability of the vacuum heat insulation plate, and solves the problem that the vacuum heat insulation plate cannot be commonly used due to the change of the diameter of the tire mold. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the tire mold of the present application.

[0026] Figure 2 It is a sectional view of the A-A section in Figure 1

[0027] Figure 3 It is an enlarged view of the B region in Figure 1

[0028] Figure 4 It is a schematic diagram of the overall structure of an embodiment of the pocket in the tire mold of the present application.

[0029] In the figure:

[0030] 1 - component; 2 - first heat insulation layer; 3 - second heat insulation layer; 4 - third heat insulation layer; 5 - vacuum heat insulation plate; 6 - pocket. DETAILED DESCRIPTION

[0031] In order to facilitate the understanding of those skilled in the art, the present application will be further described below with reference to the accompanying drawings.

[0032] Please refer to Figures 1-3 , an embodiment of a heat preservation structure provided by the present application, is used for heat insulation or heat preservation of the component 1. The heat preservation structure includes a first heat insulation layer 2 and a second heat insulation layer 3, and the first heat insulation layer 2 is located on the side of the second heat insulation layer 3 facing the high-temperature region. For example, if the component 1 needs to be heat preserved, that is, the internal temperature of the component 1 is higher than the external temperature, then the first heat insulation layer 2 is close to or in contact with the component 1, and the second heat insulation layer 3 is located on the outside of the first heat insulation layer 2 and is in close contact with the outer surface of the first heat insulation layer 2. If the component 1 needs to be heat insulated, that is, the external temperature is higher than the temperature of the component 1, then at this time the first heat insulation layer 2 is wrapped on the outside of the second heat insulation layer 3, and the component 1 is located on the inside of the second heat insulation layer 3. The component 1 can be heat insulated or heat preserved as a whole, or only the local part can be heat insulated or heat preserved. In the following, the region of the component 1 that needs to be heat insulated or heat preserved is collectively referred to as the heat insulation and heat preservation region.

[0033] Among them, the second heat insulation layer 3 includes a plurality of vacuum heat insulation plates 5, according to the shape of the component 1, the plurality of vacuum heat insulation plates 5 are sequentially spliced to form the second heat insulation layer 3, covering the heat insulation and heat preservation region of the component 1. The first heat insulation layer 2 is between the high-temperature heat source and the vacuum heat insulation plate 5, and can control the temperature at the vacuum heat insulation plate 5 within the tolerance temperature range of the vacuum heat insulation plate 5.

[0034] ​​Since the size of the existing vacuum insulation board 5 on the market is fixed, the number and splicing form of the vacuum insulation board 5 depend on the shape, area size of the heat insulation area of the component 1 and the shape and size of the vacuum insulation board 5, and the vacuum insulation board 5 covers the heat insulation area of the component 1 as much as possible.

[0035] The first heat insulation layer 2 is made of a soft and high-temperature-resistant thermal insulation material, and the soft thermal insulation material can well fit the shapes of the vacuum insulation board 5 and the component 1. The first heat insulation layer 2 can be made of one of polyimide foam material, ceramic fiber felt, aluminum silicate fiber felt, basalt fiber felt, glass fiber felt and other soft and high-temperature-resistant thermal insulation materials, or can be made of a combination of polyimide foam material, ceramic fiber felt, aluminum silicate fiber felt, basalt fiber felt, glass fiber felt and other soft and high-temperature-resistant thermal insulation materials.

[0036] The vacuum insulation board 5 is preferably a rectangular plate, which is convenient to select the existing vacuum insulation board 5 on the market; for example, according to the heat insulation area of the component 1, a vacuum insulation board 5 with a width of 30-50mm is selected. When the component 1 needs to be insulated and the heat insulation area of the component 1 is a cylindrical surface, the first heat insulation layer 2 is in close contact with the cylindrical surface of the component 1, which has good insulation effect and ensures that the cold end temperature of the first heat insulation layer 2 is reduced to within the temperature resistance of the vacuum insulation board 5; the vacuum insulation boards 5 are spliced in the circumferential direction of the component 1, and the vacuum insulation boards 5 are tangent to the outer cylindrical surface of the first heat insulation layer 2; during the fixing of the vacuum insulation boards 5, the first heat insulation layer 2 can be completely attached to the plane of the vacuum insulation board 5 due to its soft material and large compression ratio; at the same time, the first heat insulation layer 2 deforms due to extrusion and enters the splicing gap of the vacuum insulation board 5 to fill the splicing gap of the vacuum insulation board 5.

[0037] The above-mentioned insulation structure solves the problem that the existing plate-shaped vacuum insulation board 5 cannot be used on a cylindrical surface or other similar curved surface, and also solves the problem of insufficient temperature resistance of the vacuum insulation board 5.

[0038] As the first fixing scheme of the vacuum insulation board 5, the second heat insulation layer 3 further includes a plurality of pockets 6, and the vacuum insulation board 5 is inserted into the pocket 6 to complete the limiting and fixing. As shown in Figure 4 The pocket 6 can be directly fixed on the first heat insulation layer 2, or the pocket 6 and the first heat insulation layer 2 are designed as an integrated structure. The pocket 6 can completely wrap the vacuum insulation board 5, or can wrap the lower end of the vacuum insulation board 5, as long as the limiting of the vacuum insulation board 5 is achieved. The pocket 6 can be made of any one of polyimide foam material, ceramic fiber felt, aluminum silicate fiber felt, basalt fiber felt, glass fiber felt and other soft and high-temperature-resistant thermal insulation materials, or a combination of multiple thereof.

[0039] Alternatively, the vacuum insulation board 5 is directly bound on the component 1 by a rope belt around the outer side of the vacuum insulation board 5.

[0040] Further, the thickness of the first thermal insulation layer 2 after being fixed (after being compressed) is controlled to be 1-10mm, so as to ensure that the first thermal insulation layer 2 has sufficient thermal insulation effect and can also have a certain extrusion deformation amount to fill the splicing gap of the vacuum insulation boards 5.

[0041] The third thermal insulation layer 4 is preferably made of one or more of polyimide foam material, glass fiber felt, ceramic fiber felt, aluminum silicate fiber felt, basalt fiber felt, and soft rubber plastic thermal insulation material.

[0042] When the component 1 is subjected to thermal insulation treatment, the first thermal insulation layer 2, the second thermal insulation layer 3 and the third thermal insulation layer 4 are sequentially arranged from the inside to the outside.

[0043] On the other hand, please refer to Figure 1 In one embodiment of the tire mold provided by the present application, the thermal insulation sleeve is sleeved on the outside of the guide ring 1, and the thermal insulation sleeve adopts the above-mentioned thermal insulation structure.

[0044] Similarly, the thermal insulation structure of the present application can also be used for thermal insulation of the outer wall of the curing chamber of the curing machine.

[0045] The above only describes the preferred embodiments of the present application and is not used to limit the present application. Those skilled in the art can make various modifications and changes to the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A thermal insulation structure for thermally insulating or thermally protecting a component (1); characterized in that, The first thermal insulation layer (2) and the second thermal insulation layer (3) are provided. The second thermal insulation layer (3) comprises a plurality of vacuum insulation panels (5) which are sequentially spliced to cover the thermal insulation area of the component (1). The first thermal insulation layer (2) is located on the side of the second thermal insulation layer (3) facing the high-temperature area, and the first thermal insulation layer (2) after deformation by extrusion fills the gap between the first thermal insulation layer (2) and the vacuum insulation panel (5) and the gap between two adjacent vacuum insulation panels (5).

2. A thermal retention structure according to claim 1, wherein The first thermal insulation layer (2) is made of soft and high-temperature-resistant thermal insulation material.

3. A thermal insulation structure according to claim 2, wherein The first thermal insulation layer (2) is made of one of polyimide foam material, ceramic fiber felt, aluminum silicate fiber felt, basalt fiber felt, and glass fiber felt.

4. A thermal retention structure according to claim 1, wherein The second thermal insulation layer (3) further comprises a plurality of pockets (6) connected with the first thermal insulation layer (2), and the vacuum insulation panel (5) is located in the pocket (6).

5. A thermal retention structure according to claim 1, wherein The thickness of the first thermal insulation layer (2) after compression and fixation ranges from 1 to 10 mm. The vacuum insulation panel (5) is a rectangular plate with a width of 30-50 mm.

6. A thermal retention structure according to claim 1, wherein The second thermal insulation layer (3) is provided with a third thermal insulation layer (4) on the side away from the first thermal insulation layer (2).

7. A thermal insulation structure according to claim 6, wherein The third thermal insulation layer (4) is made of one of polyimide foam material, glass fiber felt, ceramic fiber felt, aluminum silicate fiber felt, basalt fiber felt, and rubber plastic thermal insulation material.

8. A thermal retention structure according to claim 6, wherein The first thermal insulation layer (2), the second thermal insulation layer (3), and the third thermal insulation layer (4) are sequentially arranged from the inside to the outside, and the outer side of the third thermal insulation layer (4) is further provided with a fourth thermal insulation layer.

9. A thermal insulation structure according to claim 8, wherein The fourth thermal insulation layer is made of one of fire-retardant silica gel cloth, glass fiber coated silica gel cloth, Teflon coated cloth, graphite coated cloth, steel wire reinforced cloth, and metal shell.

10. A tire mold characterized by, The thermal insulation structure comprises a thermal insulation sleeve and a guide ring, the thermal insulation sleeve is sleeved on the outside of the guide ring, and the thermal insulation sleeve adopts the thermal insulation structure according to any one of claims 1-9.

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