Composite insulator injection mold

Abstract

The utility model belongs to the technical field of insulator production equipment, concretely is a kind of composite insulator injection mold, including frame, the frame is used to fixed module, and the module is equipped with injection cavity;The injection cavity is used to accommodate core rod and injection liquid, and the module includes umbrella skirt module and interval adjusting module, and the umbrella skirt module is used to form core rod sheath and umbrella skirt after injection molding;Interval adjusting module is used to form core rod sheath after injection molding, and the arrangement position of interval adjusting module and umbrella skirt module is adjusted when using, and the interval of umbrella skirt formed after injection molding is adjusted.The composite insulator injection mold in the utility model is provided with umbrella skirt module and interval adjusting module, and different insulator products of umbrella skirt interval can be produced by the arrangement combination of umbrella skirt module and interval adjusting module.

Description

Technical Field

[0001] This utility model relates to the technical field of insulator production equipment, specifically to a composite insulator injection mold. Background Technology

[0002] Composite insulators are key insulation components in high-voltage overhead transmission lines, typically consisting of three parts: fittings, a core rod, and insulating sheds. During manufacturing, the sheds are generally produced using injection molding: first, the core rod is fixed within the cavity of the injection mold, then molten silicone rubber material is injected, and after cooling and solidification, a complete shed structure is formed.

[0003] The shed spacing is a key parameter in insulator design, directly affecting the creepage distance, pollution tolerance, environmental adaptability, and mechanical stability of the product. During the research and development phase of composite insulators, it is typically necessary to manufacture samples with different shed spacings for comparative testing to optimize performance. However, traditional injection molds (such as the injection mold in CN204640692U) usually produce insulators with fixed shed spacings, which cannot be flexibly adjusted. This necessitates the use of multiple mold sets during the research and development process, significantly increasing costs. Therefore, this application aims to propose a composite insulator injection mold that can produce products with various shed spacings. Utility Model Content

[0004] The purpose of this invention is to overcome the above-mentioned shortcomings of the prior art and provide a composite insulator injection mold that can flexibly adjust the combination of molds to produce products with different skirt spacings.

[0005] The technical solution of this utility model is: a composite insulator injection mold, including a frame for fixing a module, and an injection cavity inside the module; the injection cavity for accommodating a core rod and injection liquid, the module including a skirt module and a spacing adjustment module, the skirt module for forming a core rod sheath and skirts after injection molding; the injection cavity of the spacing adjustment module is cylindrical, used to form a core rod sheath after injection molding, and the spacing of the skirts formed after injection molding is adjusted by adjusting the arrangement of the spacing adjustment module and the skirt module during use.

[0006] Furthermore, each module consists of an upper mold and a lower mold, and the upper and lower molds of the same type of module are symmetrically arranged. When the corresponding upper and lower molds are assembled, a complete injection cavity is formed. Some umbrella skirt modules are provided with injection holes, through which molten silicone rubber material can enter the injection cavity. In use, at least one umbrella skirt module containing injection holes should be used.

[0007] Furthermore, positioning protrusions are provided on both sides of the upper and lower molds.

[0008] Furthermore, the umbrella skirt module comes in various models, with different models corresponding to umbrella skirts of different diameters.

[0009] Furthermore, the umbrella skirt module comes in two sizes, with multiple units of each size available.

[0010] Furthermore, there are various types of spacing adjustment modules, and each type of adjustment block has a different width.

[0011] Furthermore, the upper surface of the frame is provided with a receiving groove for installing the module; the side wall of the receiving groove is provided with a positioning slide groove; the module can be movably installed on the frame by the cooperation of the positioning slide groove and the positioning protrusion.

[0012] Furthermore, end plates are provided at both ends of the frame, and the end plates are detachably connected to the frame.

[0013] Furthermore, the end plate is provided with adjusting bolts, which are used to press the module in the receiving groove from both sides.

[0014] Compared with the prior art, the advantages of this utility model are as follows: The composite insulator injection mold of this utility model is provided with a skirt module and a spacing adjustment module. By arranging and combining the skirt module and the spacing adjustment module, insulator products with different skirt spacings can be produced. Moreover, the structure is simple and it is particularly suitable for use in experimental projects related to the research and optimization of insulator skirt spacing. Attached Figure Description

[0015] Figure 1 This is a three-dimensional schematic diagram of the lower molds of all modules in Embodiment 1 of this utility model assembled on the frame;

[0016] Figure 2 This is a top view of the lower molds of all modules in Embodiment 1 of this utility model assembled on the frame;

[0017] Figure 3 This is an exploded view of the lower mold of all modules in Embodiment 1 of this utility model after assembly;

[0018] Figure 4 This is a schematic diagram of the frame structure in Embodiment 1 of this utility model;

[0019] Figure 5 This is a cross-sectional schematic diagram of the frame in Embodiment 1 of this utility model;

[0020] In the diagram: 1. Frame; 11. Receiving groove; 12. Positioning slide; 2. Module; 21. Umbrella skirt module; 22. Spacing adjustment module; 3. End plate; 4. Adjusting bolt; 5. Positioning protrusion. Detailed Implementation

[0021] The present invention will be further described in detail below with reference to specific embodiments. Methods or functional components not specifically described in the embodiments are all prior art. Unless otherwise defined, all technical terms and scientific terms used herein have the same meaning as commonly understood by those skilled in the art. Example

[0022] like Figure 1-5 As shown, this embodiment is a composite insulator injection mold, including a frame 1 for fixing a module 2. The module 2 has an injection cavity for accommodating a core rod and injection liquid. The module 2 includes a skirt module 21 and a spacing adjustment module 22. The skirt module 21 is used to form a core rod sheath and skirts after injection molding. The spacing adjustment module 22 is used to form a core rod sheath after injection molding. In use, the spacing of the skirts formed after injection molding is adjusted by adjusting the arrangement of the spacing adjustment module 22 and the skirt module 21.

[0023] In this embodiment, each module 2 consists of an upper mold and a lower mold, and the upper and lower molds of the same type of module 2 are symmetrically arranged. When the corresponding upper and lower molds are assembled, a complete injection cavity can be formed. Some of the umbrella skirt modules 21 are provided with injection holes, through which molten silicone rubber material can enter the injection cavity. In actual use, at least one umbrella skirt module 21 containing an injection hole is used. Positioning protrusions 5 are provided on both sides of the upper and lower molds.

[0024] In this embodiment, the umbrella skirt module 21 comes in two sizes, with multiple of each type. The spacing adjustment module 22 is configured in various ways, and each type of adjustment block has a different width (thickness). In use, spacing adjustment modules 22 of different widths can be used according to actual needs, or multiple spacing adjustment modules 22 can be combined.

[0025] In this embodiment, the upper surface of the frame 1 is provided with a receiving groove 11 for mounting the module 2; the side wall of the receiving groove 11 is provided with a positioning slide groove 12; the module can be movably mounted on the frame 1 through the cooperation of the positioning slide groove 12 and the positioning protrusion 5. End plates 3 are provided at both ends of the frame 1. The end plates 3 are L-shaped and specifically include a bottom plate and a side plate; the bottom plate is detachably connected to the frame 1 by bolts. Adjusting screw holes are provided on the side plates, and adjusting bolts 4 are configured in the adjusting screw holes. The adjusting bolts 4 can be screwed in and out of the adjusting screw holes, thereby achieving the pressing and loosening of the module in the receiving groove 11.

[0026] In practical use, the distance between the two skirt modules 21 can be adjusted by inserting one or more spacing adjustment modules 22 between them, thereby adjusting the skirt spacing of the insulator product formed after injection molding. Furthermore, the modules are slidably connected to the frame 1 and are pressed together by the end plates 3 on both sides of the frame 1, making module installation and replacement simple and quick.

[0027] The above are only some embodiments of the present utility model and are not intended to limit the present utility model. For those skilled in the art, the present utility model can have various combinations and modifications of the aforementioned technical features. Any improvements, modifications, equivalent substitutions, or applications of the structure or method of the present utility model to other fields to achieve the same effect without departing from the spirit and scope of the present utility model shall fall within the protection scope of the present utility model.

Claims

1. A composite insulator injection mold, comprising a frame, characterized in that: The frame is used to fix the module, which has an injection cavity. The injection cavity is used to contain the mandrel and injection liquid. The module includes a skirt module and a spacing adjustment module. The injection cavity of the skirt module forms the skirt after injection molding. The injection cavity of the spacing adjustment module is cylindrical and only forms the mandrel sheath after injection molding. In use, the spacing of the skirt formed after injection molding is adjusted by adjusting the arrangement of the spacing adjustment module and the skirt module.

2. The composite insulator injection mold according to claim 1, characterized in that: Each module consists of an upper mold and a lower mold, and the upper and lower molds of the corresponding modules are symmetrical in structure. When the corresponding upper mold and lower mold are assembled, an injection cavity is formed.

3. The composite insulator injection mold according to claim 2, characterized in that: Some of the umbrella skirt modules are provided with injection holes, through which molten injection material enters the injection cavity; during use, ensure that at least one umbrella skirt module contains an injection hole.

4. The composite insulator injection mold according to claim 2, characterized in that: Positioning protrusions are provided on both sides of the upper and lower molds.

5. The composite insulator injection mold according to claim 1, characterized in that: The umbrella skirt module comes in various models, with different models corresponding to umbrella skirts of different diameters.

6. The composite insulator injection mold according to claim 5, characterized in that: The umbrella skirt module comes in two sizes, with multiple units of each size available.

7. The composite insulator injection mold according to claim 1, characterized in that: There are various types of spacing adjustment modules, and each type of adjustment block has a different width.

8. The composite insulator injection mold according to claim 4, characterized in that: The upper surface of the frame is provided with a receiving groove for installing the module; the side wall of the receiving groove is provided with a positioning slide groove; the module can be movably installed on the frame by the cooperation of the positioning slide groove and the positioning protrusion.

9. The composite insulator injection mold according to claim 8, characterized in that: The frame has end plates at both ends, and the end plates are detachably connected to the frame.

10. The composite insulator injection mold according to claim 9, characterized in that: The end plate is provided with an adjusting bolt, which is used to tighten the module.

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