Inner tube vulcanizing machine and upper die cover heat preservation structure thereof

Abstract

The utility model provides a kind of inner tube vulcanizing machine and its upper die cover heat preservation structure, including upper die cover and heat preservation cover;The upper end surface of the upper die cover is provided with an installation recess, the heat preservation cover is located in the installation recess, the heat preservation cover is spaced apart and is provided with a plurality of first installation holes, the installation recess is set multiple second installation holes corresponding to the multiple first installation holes;The upper die cover heat preservation structure further includes multiple fasteners, the fastener passes through the first installation hole and second installation hole to fix the heat preservation cover on the upper die cover;The downside of the upper die cover is correspondingly provided with inner tube forming cavity, the heat preservation cover is set corresponding to the inner tube forming cavity.The heat dissipated by the inner tube vulcanizing cavity can be blocked by the heat preservation cover to prevent a large amount of heat from directly escaping into the air.

Description

Technical Field

[0001] This utility model relates to an inner tube vulcanizing machine and its upper mold cover heat preservation structure. Background Technology

[0002] The inner tube vulcanizing machine is a core piece of equipment in tire manufacturing. Its basic structure mainly consists of an upper mold cover, a lower mold cover, and the inner tube vulcanizing chamber between them. The upper mold cover is hinged or hydraulically mounted on the lower mold cover, and when closed, they form a sealed mold cavity. The inner wall of the vulcanizing chamber is designed with cavities that match the shape of the inner tube to accommodate the unvulcanized inner tube semi-finished product (commonly known as the "tire blank").

[0003] The inner tube vulcanization process can be briefly described as follows: The operator places the tire blank into the lower mold cavity, closes and locks the upper mold cover, and under the combined action of temperature and pressure, the rubber molecules in the tire blank undergo a cross-linking reaction with sulfur (vulcanization). After maintaining pressure and temperature for a certain period of time, the mold is opened, and the shaped inner tube is removed. This process transforms the rubber from a plastic state to an elastomer, giving the inner tube the necessary physical properties and durability.

[0004] However, the vulcanization process requires extremely high temperature stability, but there is a significant problem of heat loss in actual production. The outer surface of the mold cover is directly exposed to the air, and heat is lost to the environment through heat conduction and convection. These heat losses not only increase energy consumption costs, but also easily cause fluctuations in vulcanization temperature, resulting in defects such as under-vulcanization (insufficient physical properties) or over-vulcanization (aging and embrittlement) in the inner tube. Utility Model Content

[0005] The purpose of this utility model is to overcome the shortcomings of the prior art and provide an inner tube vulcanizing machine and its upper mold cover heat insulation structure that can prevent heat loss.

[0006] To solve the above-mentioned technical problems, this utility model provides a heat-insulating structure for the upper mold cover of an inner tube vulcanizing machine, including an upper mold cover and a heat-insulating cover; the upper end face of the upper mold cover is provided with an installation groove, the heat-insulating cover is disposed in the installation groove, the heat-insulating cover is provided with a plurality of first installation holes at intervals, and the installation groove is provided with a plurality of second installation holes corresponding to the plurality of first installation holes; the upper mold cover heat-insulating structure also includes a plurality of fasteners, the fasteners passing through the first installation holes and the second installation holes to fix the heat-insulating cover on the upper mold cover; the lower side face of the upper mold cover is provided with an inner tube forming cavity, and the heat-insulating cover is provided with an inner tube forming cavity.

[0007] In a preferred embodiment, the periphery of the heat-insulating cover is provided with a plurality of first mounting holes at intervals.

[0008] In a preferred embodiment, the heat-insulating cover is annular.

[0009] This utility model also provides an inner tube vulcanizing machine, including the heat insulation structure of the upper mold cover of the inner tube vulcanizing machine.

[0010] Compared with the prior art, the technical solution of this utility model has the following beneficial effects:

[0011] The upper end face of the upper mold cover is provided with a mounting groove, and a heat-insulating cover is disposed in the mounting groove. The heat-insulating cover is made of heat-insulating material, and the heat-insulating cover is provided with a plurality of first mounting holes at intervals. The mounting groove is provided with a plurality of second mounting holes corresponding to the plurality of first mounting holes. The heat-insulating structure of the upper mold cover also includes a plurality of fasteners, which pass through the first mounting holes and the second mounting holes to fix the heat-insulating cover to the upper mold cover. The lower side of the upper mold cover is provided with the inner tube forming cavity, and the heat-insulating cover is provided with the inner tube forming cavity. The heat dissipated from the inner tube vulcanizing cavity can be blocked by the heat-insulating cover to prevent a large amount of heat from being directly dissipated into the air. The mounting groove can prevent the heat-insulating cover from shifting during pre-installation, and the fasteners fix the heat-insulating cover to the upper mold cover through the first mounting holes and the second mounting holes, making installation and disassembly convenient. Attached Figure Description

[0012] Figure 1 This is a cross-sectional schematic diagram of the upper mold cover and the heat preservation cover in a preferred embodiment of the present utility model;

[0013] Figure 2 This is a top view of the upper mold cover and the heat preservation cover in a preferred embodiment of the present invention;

[0014] Figure 3 This is a schematic diagram of the first specification of the heat-insulating cover in a preferred embodiment of the present utility model;

[0015] Figure 4 This is a schematic diagram of the second specification of the heat-insulating cover in a preferred embodiment of the present utility model;

[0016] Figure 5 This is a schematic diagram of the third specification of the heat-insulating cover in a preferred embodiment of the present invention. Detailed Implementation

[0017] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0018] See Figures 1-5 An inner tube vulcanizing machine includes a lower mold base and an upper mold cover 1. The lower mold base is provided with a lower mold core, and the upper mold cover 1 is provided with an upper mold core. The upper mold cover 1 is rotatably connected to the lower mold base so as to drive the upper mold core to be openably and closably mounted on the lower mold core. An inner tube vulcanizing cavity is formed between the upper mold core and the lower mold core.

[0019] The upper end face of the upper mold cover 1 is provided with a mounting groove 11, and a heat-insulating cover 2 is disposed in the mounting groove 11. The heat-insulating cover 2 is made of heat-insulating material, and the heat-insulating cover 2 is provided with a plurality of first mounting holes 21 at intervals. The mounting groove 11 is provided with a plurality of second mounting holes 111 corresponding to the plurality of first mounting holes 21. It also includes a plurality of fasteners, which pass through the first mounting holes 21 and the second mounting holes 111 to fix the heat-insulating cover 2 to the upper mold cover 1. The lower side of the upper mold cover 1 is provided with the inner tube forming cavity, and the heat-insulating cover 2 is provided corresponding to the inner tube forming cavity. The heat escaping from the inner tube vulcanizing cavity can be blocked by the heat-insulating cover 2 to prevent a large amount of heat from directly escaping into the air. The mounting groove 11 can prevent the heat-insulating cover 2 from shifting during pre-installation. The fasteners fix the heat-insulating cover 2 to the upper mold cover 1 through the first mounting holes 21 and the second mounting holes 111, making installation and disassembly convenient.

[0020] In this embodiment, the fastener is a bolt, the second mounting hole 111 is a threaded hole, and the first mounting hole 21 is a through hole.

[0021] The insulation cover 2 comes in various sizes. For smaller sizes, multiple first mounting holes 21 are spaced apart around the periphery of the insulation cover 2. The first mounting holes 21 are semi-circular to facilitate position adjustment. For larger sizes, some of the first mounting holes 21 are located around the periphery of the insulation cover 2, while the remaining first mounting holes 21 are located inside the insulation cover 2; or all of the first mounting holes 21 are located inside the insulation cover 2.

[0022] In this embodiment, the heat insulation cover 2 is annular to correspond to the inner tube vulcanization cavity.

[0023] The above description is only a preferred embodiment of the present utility model, but the design concept of the present utility model is not limited thereto. Any non-substantial modifications made to the present utility model by those skilled in the art within the scope of the technology disclosed in the present utility model using this concept shall be deemed as an infringement of the protection scope of the present utility model.

Claims

1. A heat-insulating structure for the upper mold cover of an inner tube vulcanizing machine, characterized in that, The device includes an upper mold cover and an insulation cover. The upper mold cover has an mounting groove on its upper surface, and the insulation cover is disposed within the mounting groove. The insulation cover has multiple first mounting holes spaced apart, and the mounting groove has multiple second mounting holes corresponding to the first mounting holes. The upper mold cover insulation structure also includes multiple fasteners, which pass through the first and second mounting holes to fix the insulation cover onto the upper mold cover. The lower side of the upper mold cover has an inner tube forming cavity, and the insulation cover is disposed corresponding to the inner tube forming cavity.

2. The heat insulation structure of the upper mold cover of the inner tube vulcanizing machine as described in claim 1, characterized in that: The heat insulation cover has multiple first mounting holes spaced apart around its periphery.

3. The heat insulation structure of the upper mold cover of the inner tube vulcanizing machine as described in claim 1, characterized in that: The heat-insulating cover is ring-shaped.

4. An inner tube vulcanizing machine, characterized in that, Including the upper mold cover insulation structure of an inner tube vulcanizing machine as described in any one of claims 1-3.

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