A special tooling for vulcanizing the nozzle of an inflatable sealing hose

Abstract

This application relates to the field of inflatable rubber sealing hose technology, and particularly to a special tooling for vulcanizing the nozzle of an inflatable sealing hose. The tooling includes a core, the shape of which is adapted to the inner cavity of the inflatable sealing hose. A plug is provided on one side of the core corresponding to the nozzle, and the plug is an integral structure with the core. The shape of the plug matches the orifice of the nozzle, and the core is used to fit tightly inside the orifice. During vulcanization, the core is inserted into the inner cavity of the inflatable sealing hose, and the plug completely fills the orifice space. Because the plug and core are an integral structure, the gap between the core and the nozzle positioning pin in traditional processes is eliminated, effectively preventing rubber from flowing into the orifice during vulcanization and ensuring the accuracy of the orifice size.

Description

Technical Field

[0001] This application relates to the field of inflatable rubber sealing hose technology, and in particular to a special tooling for vulcanizing the nozzle of an inflatable sealing hose. Background Technology

[0002] Inflatable sealing hoses are used for sealing large openings and doors. They are formed by vulcanizing a rubber hose and a connecting nozzle in a single process. The inflatable rubber sealing hose uses the connecting nozzle to inflate and deflate the hose. The nozzle and hose are primarily connected through an air nozzle hole. However, different manufacturing processes can lead to inconsistent connection results, making the selection of a suitable process crucial.

[0003] Existing vulcanized connectors use specialized molds to vulcanize inflatable sealing hose connectors. First, a core is inserted into the rubber hose. Then, the connector opening is aligned with the connector positioning pin on the mold. The connector is then moved downwards until it is fully inserted into the mold cavity, until the connector positioning pin contacts the core inside the rubber hose. This provides support and pressure during the vulcanization of the sealing hose. However, this method cannot guarantee a perfect fit between the core and the connector positioning pin, resulting in glue leakage through the gap and making it impossible to guarantee the correct orifice size for the inflatable sealing hose connector. Utility Model Content

[0004] This application aims to at least partially address one of the aforementioned technical problems in the prior art. To this end, embodiments of this application provide a special tooling for vulcanizing the nozzle of an inflatable sealing hose, effectively preventing rubber from flowing into the nozzle orifice during vulcanization and ensuring the accuracy of the nozzle orifice dimensions.

[0005] A special tooling for vulcanizing the nozzle of an inflatable sealing hose includes a core tube whose shape is adapted to the inner cavity of the inflatable sealing hose. A plug is provided on one side of the core tube corresponding to the nozzle of the inflatable sealing hose. The plug and the core tube are integrally formed. The shape of the plug tube matches the orifice of the inflatable sealing hose nozzle. The core tube is used to fit tightly inside the orifice of the inflatable sealing hose nozzle.

[0006] In an optional or preferred embodiment, the length of the plug is 10 mm.

[0007] In an optional or preferred embodiment, the end of the plug away from the core is chamfered.

[0008] In an optional or preferred embodiment, the chamfer has a length of 2 mm and an angle of 10°.

[0009] In an optional or preferred embodiment, the die has a U-shaped structure.

[0010] Based on the above technical solution, the embodiments of this application have at least the following beneficial effects: During the vulcanization process, the core tube is inserted into the inner cavity of the inflatable sealing hose, while the plug completely fills the nozzle orifice space. Since the plug and the core tube are an integral structure, the fitting gap between the core tube and the nozzle positioning pin in the traditional process is eliminated, effectively preventing rubber from flowing into the nozzle orifice during the vulcanization process and ensuring the accuracy of the nozzle orifice size. Attached Figure Description

[0011] The present application will be further described below with reference to the accompanying drawings and embodiments;

[0012] Figure 1 This is a front view of the special tooling for vulcanizing the gas-sealed hose connector provided in the embodiments of this application;

[0013] Figure 2 yes Figure 1 Sectional view along the AA direction.

[0014] Figure 3 This is a cross-sectional view of the special tooling for vulcanizing the nozzle of the inflatable sealing hose provided in this embodiment of the application, which is installed inside the inflatable sealing hose. Detailed Implementation

[0015] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0016] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0017] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0018] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0019] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0020] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0021] Inflatable sealing hoses are used for sealing large openings and doors. They are formed by vulcanizing a rubber hose and a connecting nozzle in a single process. The inflatable rubber sealing hose uses the connecting nozzle to inflate and deflate the hose. The nozzle and hose are primarily connected through an air nozzle hole. However, different manufacturing processes can lead to inconsistent connection results, making the selection of a suitable process crucial.

[0022] Existing vulcanized connectors use specialized molds to vulcanize inflatable sealing hose connectors. First, a core is inserted into the rubber hose. Then, the connector opening is aligned with the connector positioning pin on the mold. The connector is then moved downwards until it is fully inserted into the mold cavity, until the connector positioning pin contacts the core inside the rubber hose. This provides support and pressure during the vulcanization of the sealing hose. However, this method cannot guarantee a perfect fit between the core and the connector positioning pin, resulting in glue leakage through the gap. This makes it impossible to guarantee the correct inflation / deflation port size for the inflatable sealing hose connector.

[0023] Reference Figures 1 to 3 This application provides a special tooling for vulcanizing the nozzle of an inflatable sealing hose, including a core 1. The shape of the core 1 is adapted to the inner cavity of the inflatable sealing hose 3. A plug 2 is provided on one side of the core 1 corresponding to the nozzle 31 of the inflatable sealing hose. The plug 2 and the core 1 are an integral structure. The shape of the plug 2 matches the orifice 32 of the inflatable sealing hose nozzle 31. The core 1 is used to fit tightly inside the orifice 32 of the inflatable sealing hose nozzle 31.

[0024] The core tube 1 adopts a U-shaped structure design. The bending radius of the U-shaped core tube 1 matches the bending radius of the inner cavity of the inflatable sealing hose 3, which can completely fit the inner cavity contour of the inflatable sealing hose 3. The U-shaped core tube 1 forms a support for the entire inflatable sealing hose 3.

[0025] Of course, the core 1 can also be configured with other structures according to the shape of the inflatable sealing hose 3, such as a cylindrical or square structure. The core 1 is made of high-temperature resistant stainless steel, and its surface is precision machined to have good smoothness and dimensional accuracy.

[0026] The plug 2 and the core 1 are an integral structure, formed by integral processing. In the embodiment shown in this application, the plug 2 is a cylindrical structure that matches the nozzle 32 of the inflatable sealing hose connector 31.

[0027] In some embodiments, the plug 2 can also be configured as a frustum-shaped cone, with its bottom diameter being the same as the diameter of the core 1 and its top diameter being slightly smaller than the inner diameter of the orifice 32 of the inflatable sealing hose connecting to the nozzle 31, forming a tapered structure. This design allows the plug 2 to be smoothly inserted into the orifice 32 of the connecting hose and gradually form a sealing fit during the insertion process.

[0028] During vulcanization, the core tube 1 is inserted into the inner cavity of the inflatable sealing hose 3, while the plug 2 completely fills the space of the nozzle orifice 32. Since the plug 2 and the core tube 1 are an integral structure, the gap between the core tube 1 and the nozzle positioning pin in the traditional process is eliminated, effectively preventing the rubber from flowing into the nozzle orifice 32 during vulcanization and ensuring the accuracy of the nozzle orifice 32 dimensions.

[0029] Specifically, the plug 2 is designed to be 10mm long. This 10mm length ensures that the plug 2 can be inserted into the nozzle hole 32 to form an effective seal and support, while avoiding disassembly difficulties caused by excessive insertion. This moderate insertion depth ensures that rubber is prevented from flowing in, while also facilitating disassembly after vulcanization.

[0030] A chamfer is provided at the end of the plug 2 away from the core 1, with a chamfer length of 2mm and an angle of 10°. This chamfer design significantly improves the insertion performance of the plug 2, reduces insertion resistance, and avoids damage to the connector nozzle caused by forced insertion.

[0031] The chamfered taper design allows the plug 2 to automatically center during insertion, ensuring accuracy. Simultaneously, the chamfer also acts as a guide, guaranteeing insertion precision even in high-speed operations during mass production.

[0032] This integrated design completely eliminates the gap between the parts, preventing glue leakage. The conical plug 2 design facilitates insertion and disassembly, improving the ease of use of the tooling. Precise dimensional control ensures the dimensional accuracy of the nozzle hole 32.

[0033] In use, first insert the core 1 into the inner cavity of the inflatable sealing hose 3, ensuring a tight fit between the core 1 and the inner wall of the cavity. Then, attach the connector to the end of the hose; at this point, the plug 2 automatically inserts into the nozzle hole 32 of the connector. The entire fixture and hose connector assembly are placed together in a vulcanizing mold for vulcanization. After vulcanization, the removed inflatable sealing hose connector 31 has a precise nozzle hole 32 size, fully meeting the functional requirements for inflation and deflation.

[0034] The tooling design in this application solves the problem of glue leakage caused by the gap between the core tube 1 and the nozzle positioning pin in the prior art, ensuring the accuracy and consistency of the dimensions of the nozzle 31 and orifice 32 of the inflatable sealing hose. Through integrated design, precise dimensional control, and reasonable structural design, product quality and production efficiency are significantly improved, providing effective technical support for the large-scale production of the inflatable sealing hose 3.

[0035] The embodiments of this application have been described in detail above with reference to the accompanying drawings. However, this application is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of this application.

Claims

1. A special tool for curing an air seal hose adapter nozzle, characterized by, The device includes a core tube whose shape is adapted to the inner cavity of the inflatable sealing hose. A plug is provided on one side of the core tube corresponding to the inflatable sealing hose connector. The plug and the core tube are an integral structure. The shape of the plug matches the nozzle of the inflatable sealing hose connector. The core tube is used to fit tightly inside the nozzle of the inflatable sealing hose connector.

2. The special tool for curing the air seal hose adapter nozzle according to claim 1, characterized in that: The length of the plug is 10mm.

3. The special tool for curing the air seal hose adapter nozzle according to claim 1, characterized in that: The end of the plug away from the core is chamfered.

4. The special tool for curing the air seal hose adapter nozzle according to claim 3, characterized in that: The chamfer has a length of 2mm and an angle of 10°.

5. The special tooling for vulcanizing the inflatable sealing hose nozzle according to claim 1, characterized in that: The core has a U-shaped structure.

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