8-shaped self-supporting optical cable mold
By optimizing the structural design of the figure-eight self-supporting optical cable mold, the problems of high processing difficulty and adjustment difficulty of traditional molds have been solved, and the concentricity, neck straightness and sheath uniformity of the optical cable have been achieved, thereby improving the overall performance and production efficiency of the optical cable.
Patent Information
- Application Number
- CN202422830033.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-20
- Publication Date
- 2025-11-04
- Estimated Expiration
- 2034-11-20
AI Technical Summary
Traditional figure-eight self-supporting optical cable molds are difficult to process, have problems such as difficulty in concentricity adjustment, twisting of the hanger neck, mismatch between the thickness of the suspension line and the optical cable sheath, and uneven material fusion, which affect the production efficiency and performance of optical cables.
Design an optical cable mold including a core and a cover. The core has a suspension wire through hole, a cable core through hole and a negative pressure through hole. The cover has a forming section and a transition arc surface. The mold surface is nitrided to ensure the concentricity of each layer of the optical cable structure, the straightness of the suspension neck and the uniformity of the sheath. Improve the processing accuracy and adjustment flexibility by optimizing the structure and material selection.
It simplifies the mold processing, improves the concentricity of the optical cable and the straightness of the neck, ensures the uniformity and surface smoothness of the sheath, reduces production costs, and improves the mechanical properties and production efficiency of the optical cable.
Smart Images
Figure CN223507645U_ABST
Abstract
Description
[TECHNICAL FIELD]
[0001] The utility model relates to the field of optical cable manufacturing technology, and specifically to an 8-shaped self-supporting optical cable mold. [BACKGROUND]
[0002] With the explosive growth of the Internet and data communication, traditional communication methods have been unable to meet the growing demand for bandwidth. Optical fiber communication has become the preferred choice for modern communication networks due to its high bandwidth, low loss, and strong anti-interference performance. However, the installation and maintenance of optical cables have always been key factors affecting their widespread application. In this context, the 8-shaped self-supporting optical cable has emerged as the times require, with its design taking into full consideration the convenience and economy of installation while ensuring the transmission performance of optical fibers and the stability of the network. The installation advantages of the 8-shaped self-supporting optical cable mainly lie in the following aspects:
[0003] (1) Simplify the installation process: The structural design of the 8-shaped optical cable simplifies the installation process, reducing the time and labor costs required for installation, especially in situations where communication networks need to be quickly deployed;
[0004] (2) Improve construction speed: Due to the self-supporting design of the 8-shaped self-supporting optical cable, it does not require additional support structures during installation, greatly improving construction speed and reducing construction difficulty;
[0005] (3) Enhance mechanical performance: The high tensile strength and good mechanical performance of the 8-shaped self-supporting optical cable enable it to adapt to various harsh environments, ensuring the stability and reliability of the communication network;
[0006] (4) Optimize maintenance costs: The ease of maintenance of the 8-shaped self-supporting optical cable reduces the cost of subsequent maintenance, especially when optical fibers need to be replaced or upgraded, allowing for quick operation and reducing maintenance time;
[0007] (5) Adapt to diverse installation environments: The design of the 8-shaped self-supporting optical cable enables it to adapt to various installation environments, including overhead, pipeline, and direct burial, providing flexibility for the construction of communication networks.
[0008] However, due to the special structure of the 8-shaped self-supporting optical cable, it faces a series of challenges during production. The traditional 8-shaped self-supporting optical cable mold design adopts a combination of pipe drawing, semi-extrusion, and extrusion modes, which, although can meet certain production needs, has many problems in actual operation:
[0009] (1) High difficulty in mold processing: The complex structure of the 8-shaped self-supporting optical cable mold requires extremely high precision and material performance, resulting in a complex and costly mold processing process;
[0010] (2) Difficulty in adjusting concentricity during production: During the production process, the concentricity of each layer of the optical cable is crucial, but traditional molds are often difficult to adjust precisely, affecting the uniformity, stability and production efficiency of the optical cable.
[0011] (3) Neck twisting: If the neck of the figure-eight self-supporting optical cable is twisted, it will directly affect the suspension and load-bearing capacity of the optical cable and reduce its reliability in practical applications.
[0012] (4) Mismatch between the thickness of the suspension wire and the optical cable sheath: The thickness of the suspension wire and the optical cable sheath need to be precisely matched to ensure the overall performance of the optical cable, but traditional molds are difficult to control precisely during the adjustment process;
[0013] (5) Uneven material fusion: In the tube drawing, semi-extrusion and extrusion processes, the fusion quality of materials under different mold structures has an important impact on the performance of optical cables. Traditional molds may not be able to ensure uniform fusion of materials throughout the production process.
[0014] To address these issues, innovative designs are needed for the figure-eight self-supporting optical cable mold. This would improve the mold's processing precision and adjustment flexibility, and employ more advanced production processes to ensure the concentricity of the optical cable, the straightness of the neck, the uniformity of the sheath, and the smoothness of the surface. This would enhance the overall performance and production efficiency of the figure-eight self-supporting optical cable. [Utility Model Content]
[0015] The purpose of this utility model is to overcome the above-mentioned shortcomings and provide an 8-shaped self-supporting optical cable mold, which simplifies the mold processing, makes it easy to adjust during use, and can meet the requirements of optical cable concentricity, neck straightness, sheath uniformity and surface smoothness.
[0016] To achieve the above objectives, an 8-shaped self-supporting optical cable mold is designed, including a mold core 1 and a mold cover 2 that mates with the mold core 1. The mold cover 2 is fitted around the mold core 1. A flow channel is provided between the mold core 1 and the mold cover 2. The top surface of the mold core 1 and the top surface of the mold cover 2 are assembled on the same plane. The top surface of the mold core 1 is provided with a suspension wire passage hole 11, a cable core passage hole 12, and a negative pressure through hole 13. The outer periphery of the top of the mold core 1 is provided with a cable core bearing arc surface 14 and a suspension wire bearing arc surface 15. The diameter of the suspension wire bearing arc surface 15 is larger than the diameter of the cable core bearing arc surface 14. A neck bearing arc surface 16 connects the cable core bearing arc surface 14 and the suspension wire bearing arc surface 15. The discharge end of the top of the mold cover 2 is provided with a discharge circular hole. The discharge circular hole is provided with a forming section 21 and a transition arc surface 22.
[0017] Furthermore, the center point of the suspension wire through hole 11, the cable core through hole 12 and the mold core 1 are on the same straight line, thereby ensuring the concentricity of each layer of the optical cable structure and simplifying the concentricity adjustment process to mold concentricity.
[0018] Furthermore, two negative pressure through holes 13 are provided, and the two negative pressure through holes 13 are symmetrically distributed on both sides of the center line of the mold core 1, so as to provide stable air pressure support for the forming of the neck and prevent the neck from twisting.
[0019] Furthermore, the cable core bearing arc surface 14 and the suspension wire bearing arc surface 15 are both concentric with the mold core 1, thereby ensuring the uniformity of the optical cable structure.
[0020] Furthermore, the neck bearing arc surface 16, the cable core bearing arc surface 14, and the suspension wire bearing arc surface 15 all adopt a circular arc transition, and their connection transition angles are all R0.5°~R3.0°, thereby ensuring a smooth transition and reducing stress concentration.
[0021] Furthermore, the bearing arc surfaces 16 of the hanger neck are symmetrically arranged and symmetrically distributed on both sides of the center line of the mold core 1.
[0022] Furthermore, the transition angle of the transition arc surface 22 is R10°~R15°, which further facilitates the smooth extrusion of the optical cable and improves the surface smoothness.
[0023] Furthermore, both the mold core 1 and the mold cover 2 are provided with a nitriding layer with a hardness of 850-1000HV, which makes the mold more wear-resistant and less prone to damage.
[0024] Compared with the prior art, this utility model has the following advantages:
[0025] (1) Easy mold processing: By optimizing the mold structure design, the processing difficulty is reduced and the processing accuracy is improved, thereby shortening the mold manufacturing cycle and reducing costs;
[0026] (2) Concentricity adjustment is simple: the wire guide hole and the cable core guide hole are precisely aligned with the center of the mold core, simplifying the concentricity adjustment steps and improving production efficiency;
[0027] (3) The neck is not easily twisted: The negative pressure through holes are symmetrically distributed, providing stable support for the neck forming, effectively preventing the neck from twisting and improving the mechanical performance of the optical cable;
[0028] (4) The thickness of the suspension line and optical cable sheath is easy to adjust: The mold structure is reasonably designed, which makes it easy to adjust the thickness of the suspension line and optical cable sheath, ensuring the overall performance of the optical cable is excellent;
[0029] (5) Uniform material fusion: The mold design is reasonable to avoid the influence of different extrusion modes on the material, ensuring that the material is uniformly fused in the mold, and improving the smoothness and durability of the optical cable sheath;
[0030] In summary, this utility model, through its unique structural design, simplifies the mold processing and makes adjustments during use easy. It also satisfies the requirements for optical cable concentricity, neck straightness, sheath uniformity, and surface smoothness, thereby improving the overall performance and production efficiency of the figure-eight self-supporting optical cable. It is worthy of widespread application. [Image Description]
[0031] Figure 1 This is a schematic diagram of the assembly structure of this utility model;
[0032] Figure 2 This is a schematic diagram of the structure of the mold core of this utility model;
[0033] Figure 3 This is a schematic diagram of the structure of the mold cover of this utility model;
[0034] Figure 4 This is a cross-sectional view of the assembly structure of this utility model;
[0035] In the figure: 1. Mold core; 11. Suspension wire through hole; 12. Cable core through hole; 13. Negative pressure through hole; 14. Cable core bearing arc surface; 15. Suspension wire bearing arc surface; 16. Suspension neck bearing arc surface; 2. Mold cover; 21. Forming section; 22. Transition arc surface. [Detailed Implementation]
[0036] As attached Figure 1 To be continued Figure 4 As shown, this utility model provides an 8-shaped self-supporting optical cable mold, including a mold core 1 and a mold cover 2 that mates with and connects to the mold core 1. The mold cover 2 is fitted around the mold core 1. A flow channel is provided between the mold core 1 and the mold cover 2. The top surface of the mold core 1 and the top surface of the mold cover 2 are assembled on the same plane. The top surface of the mold core 1 is provided with a suspension wire passage hole 11, a cable core passage hole 12, and a negative pressure through hole 13. The outer periphery of the top of the mold core 1 is provided with a cable core bearing arc surface 14 and a suspension wire bearing arc surface 15. The diameter of the suspension wire bearing arc surface 15 is larger than that of the cable core bearing arc surface 14. The diameter of the cable core bearing arc surface 14 and the suspension wire bearing arc surface 15 are connected by a neck bearing arc surface 16. The discharge end of the top of the mold cover 2 is provided with a discharge circular hole. The discharge circular hole is divided into a forming section 21 (i.e., the neck section) and a transition arc surface 22. The transition angle of the transition arc surface 22 is R10°~R15°, which further helps the optical cable to be extruded smoothly and improves the surface smoothness. The surfaces of the mold core 1 and the mold cover 2 are provided with a nitriding layer with a hardness of 850-1000HV, which makes the mold more wear-resistant and less prone to damage.
[0037] Among them, the suspension wire passage hole 11 and the cable core passage hole 12 on the mold core 1 are on the same straight line as the center point of the mold core 1, which can ensure the concentricity of each layer of the optical cable structure and simplify the concentricity adjustment process to mold concentricity; there are two negative pressure through holes 13 on the mold core 1, which are symmetrically distributed on both sides of the center line of the mold core 1, so as to provide stable air pressure support for the forming of the neck and prevent the neck from twisting.
[0038] The cable core bearing arc surface 14 and the suspension wire bearing arc surface 15 are both concentric with the mold core 1, thus ensuring the uniformity of the optical cable structure. The neck bearing arc surface 16 is symmetrically arranged and symmetrically distributed on both sides of the center line of the mold core 1. The neck bearing arc surface 16 and the cable core bearing arc surface 14 and the suspension wire bearing arc surface 15 are all connected by a circular arc transition. That is, the neck bearing arc surface 16 is used to connect the cable core bearing arc surface 14 and the suspension wire bearing arc surface 15, and the connection transition angle is R0.5°~R3.0°, which can ensure a smooth transition and reduce stress concentration.
[0039] The present invention will be further described below with reference to the accompanying drawings and specific embodiments:
[0040] This utility model relates to a figure-eight self-supporting mold, comprising a mold core 1 and a mold cover 2 that mates with the mold core 1. The mold core 1 and the mold cover 2 are assembled on the same plane. The mold core 1 has a suspension wire passage hole 11, a cable core passage hole 12, a negative pressure through hole 13, a cable core bearing arc surface 14, a suspension wire bearing arc surface 15, and a neck bearing arc surface 16. The mold cover 2 has a forming section 21 and a transition arc surface 22. The entire mold undergoes surface nitriding treatment, achieving a hardness between 850-1000 HV, making the mold more wear-resistant and less prone to damage.
[0041] In use, the suspension wire passes through the suspension wire passage hole 11 of the mold core 1, and the cable core passes through the cable core passage hole 12 of the mold core 1. The suspension wire and the cable core are positioned on the center line perpendicular to the ground by the positioning of the mold core 1. After the sheath material is further uniformly fused in the flow channel between the mold core 1 and the mold cover 2, it covers the suspension wire and the cable core. The two negative pressure through holes 13, which are symmetrical with the center line, allow the sheath material to better cover the suspension wire and the cable core under the action of the negative pressure fan, and form a suspension neck.
[0042] The symmetrical neck bearing arc surface 16 on both sides transitions smoothly with the cable core bearing arc surface 14 and the suspension wire bearing arc surface 15, ensuring a smooth transition and reducing stress concentration in the sheath material. The transition arc surface 22 adopts an appropriate transition angle when the sheath material enters the forming section, which helps the optical cable to be extruded smoothly and improves the surface smoothness.
[0043] The thickness of the suspension wire and optical cable sheath can be achieved by adjusting the arc gap between the cable core bearing arc surface 14, the suspension wire bearing arc surface 15 and the forming section 21; the cable core bearing arc surface 14 and the suspension wire bearing arc surface 15 are concentric with the mold core 1, making it easier to adjust the concentricity of the figure-eight cable.
[0044] This invention solves the problems of traditional figure-eight self-supporting optical cable molds, such as processing difficulty, concentricity adjustment, neck twisting, thickness mismatch, and uneven material fusion. It includes a mold core and a matching mold cover. The mold core has a suspension wire passage hole, a cable core passage hole, a negative pressure through hole, a cable core bearing arc surface, a suspension wire bearing arc surface, and a neck bearing arc surface. The mold cover has a discharge hole at the discharge end, and is divided into a neck section and a transition arc surface. This mold design simplifies the processing, facilitates adjustment, and ensures the concentricity of the optical cable, the straightness of the neck, the uniformity of the sheath, and the surface smoothness, thereby improving the performance of the optical cable and production efficiency. This invention achieves: easy mold processing, simple concentricity adjustment, less neck twisting, easy adjustment of the thickness of the suspension wire and optical cable sheath, uniform material fusion, and the mold as a whole undergoes surface nitriding treatment, improving wear resistance and durability.
[0045] The contents not described in detail in this specification are existing technologies known to those skilled in the art. The standard parts used can be purchased from the market, and the irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the existing technology. The machinery, parts and equipment adopt conventional models in the existing technology, and the circuit connection adopts conventional connection methods in the existing technology, which will not be described in detail here.
[0046] This utility model is not limited to the above-described embodiments. Any changes, modifications, substitutions, combinations, or simplifications made without departing from the spirit and principle of this utility model shall be considered equivalent substitutions and shall be included within the protection scope of this utility model.
Claims
1. A figure-eight shaped self-supporting optical cable mold, characterized in that: Includes a mold core (1) and a mold cover (2) that mates with the mold core (1). The mold cover (2) is fitted around the mold core (1). A flow channel is provided between the mold core (1) and the mold cover (2). The top surface of the mold core (1) and the top surface of the mold cover (2) are assembled on the same plane. The top surface of the mold core (1) is provided with a suspension wire passage hole (11), a cable core passage hole (12), and a negative pressure through hole (13). The top of the mold core (1) The outer periphery is provided with a cable core bearing arc surface (14) and a suspension wire bearing arc surface (15). The diameter of the suspension wire bearing arc surface (15) is larger than the diameter of the cable core bearing arc surface (14). A neck bearing arc surface (16) connects the cable core bearing arc surface (14) and the suspension wire bearing arc surface (15). The top of the mold cover (2) has a discharge hole at the discharge end. The discharge hole has a forming section (21) and a transition arc surface (22).
2. The figure-eight self-supporting optical cable mold as described in claim 1, characterized in that: The center point of the suspension wire through hole (11), the cable core through hole (12), and the mold core (1) are on the same straight line.
3. The figure-eight self-supporting optical cable mold as described in claim 1, characterized in that: There are two negative pressure through holes (13), which are symmetrically distributed on both sides of the center line of the mold core (1).
4. The figure-eight self-supporting optical cable mold as described in claim 1, characterized in that: The cable core bearing arc surface (14) and the suspension wire bearing arc surface (15) are both concentric with the mold core (1).
5. The figure-eight self-supporting optical cable mold as described in claim 1, characterized in that: The neck bearing arc surface (16) and the cable core bearing arc surface (14) and the suspension wire bearing arc surface (15) are all connected by a circular arc transition, with the connection transition angle being R0.5°~R3.0°.
6. The figure-eight self-supporting optical cable mold as described in claim 5, characterized in that: The bearing arc surface (16) of the neck is symmetrically arranged and symmetrically distributed on both sides of the center line of the mold core (1).
7. The figure-eight self-supporting optical cable mold as described in claim 1, characterized in that: The transition angle of the transition arc surface (22) is R10°~R15°.
8. The figure-eight self-supporting optical cable mold as described in any one of claims 1 to 7, characterized in that: The surfaces of both the mold core (1) and the mold cover (2) are provided with a nitriding layer with a hardness of 850-1000HV.