High-wear-resistant and anti-bending automatic sorting mechanical arm drag chain cable

Abstract

The utility model relates to industrial robot cable technical field especially relates to a kind of high wear resistance anti-bending automatic sorting mechanical arm drag chain cable. Including silver-plated alloy conductor, it is covered composite insulating layer, fourfold shielding layer, kevlar fiber reinforced sheath in proper order outside. Silver-plated alloy conductor is twisted by multiple copper-tin alloy filaments, each silver-plated has specific thickness, and twisting pitch is 46 times of wire diameter. Composite insulating layer is the double-layer structure of modified TPU and ceramic silicon rubber, and oil resistance is good, temperature resistance range 50 DEG C-150 DEG C. Fourfold shielding layer is made of aluminium foil longitudinal covering layer, nano graphene copper mesh, ferrite wave-absorbing layer and silver-plated copper wire braiding net, and 0.1mm high-temperature-resistant polyester film is arranged between layers and between composite insulating layer, and ferrite wave-absorbing layer is 0.1mm thick, and can target absorption specific frequency band interference. Sheath material is PUR, kevlar fiber, molybdenum disulfide mixture, and hardness is 95A-100A, tensile strength is greater than or equal to 2000N, and diamond non-slip grain and embedded wear-resistant strip are arranged on its outer surface.

Description

Technical Field

[0001] This utility model relates to the field of industrial robot cable technology, and in particular to a high wear-resistant and bending-resistant automatic sorting robotic arm drag chain cable. Background Technology

[0002] In the intelligent utility tunnel operation and maintenance scenario, robots need to achieve power transmission and signal interaction through cables, but traditional cables have many technical bottlenecks. In terms of flexibility, conventional multi-strand stranded conductor structures are prone to fatigue fracture under long-term high-frequency bending conditions, leading to circuit interruptions. Simultaneously, common sheathing materials such as polyvinyl chloride (PVC) harden and crack rapidly during repeated bending, severely impacting cable lifespan and safety. Regarding interference resistance, the single-layer copper mesh shielding structure used in traditional cables is insufficient to withstand the complex electromagnetic environment within utility tunnels. High-frequency electromagnetic noise generated by equipment such as frequency converters and motors can penetrate the single-layer shielding, causing distortion of robot control signals and data transmission errors, affecting normal robot operation. In terms of environmental adaptability, the complex environment within utility tunnels, including oil and moisture, poses a severe challenge to cables. Mineral oil, lubricating oil, and other oil contaminants can penetrate ordinary insulation materials, accelerating insulation aging and reducing insulation performance. Furthermore, extreme temperature changes significantly degrade the physicochemical properties of cable materials; high temperatures cause softening and deformation, while low temperatures induce embrittlement, further shortening cable lifespan. In terms of wear resistance, due to the frequent friction between the cable and the inner wall of the utility tunnel during the operation of the utility tunnel robot, or the repeated bending and friction at the joints of the robot, the insufficient wear resistance of traditional cable sheath materials becomes prominent. Ordinary polyvinyl chloride (PVC) or neoprene rubber sheaths are very prone to damage and peeling under continuous friction, exposing the internal conductors and causing short circuit risks, which seriously threaten the safety of robot operation and the stability of utility tunnel maintenance. Utility Model Content

[0003] To completely solve the above problems, this utility model proposes a high-wear-resistant and bending-resistant automatic sorting robot drag chain cable. It uses multi-strand silver-plated copper-tin alloy wires twisted into a conductor, covered with a modified TPU and ceramicized silicone rubber composite insulation layer, making it oil-resistant and temperature-resistant. A quadruple shielding layer provides precise anti-interference, and the Kevlar-reinforced PUR sheath has a hardness of 95A-100A and a tensile strength ≥2000N, with a non-slip and wear-resistant surface. The specific technical solution is as follows: A high wear-resistant and bending-resistant automatic sorting robot drag chain cable includes a silver-plated alloy conductor. The outer surface of the silver-plated alloy conductor is sequentially covered with a composite insulation layer, a quadruple shielding layer, and a Kevlar fiber reinforced sheath. The quadruple shielding layer consists of an aluminum foil longitudinal wrapping layer, a nano-graphene copper mesh, a ferrite absorbing layer, and a silver-plated copper wire braided mesh, from the inside out.

[0004] Preferably, a 0.1mm high-temperature resistant polyester film is sandwiched between the composite insulation layer and the quadruple shielding layer.

[0005] Preferably, each of the four shielding layers is sandwiched with a 0.1mm high-temperature resistant polyester film.

[0006] Preferably, the silver-plated alloy conductor is formed by stranding multiple copper-tin alloy wires, with a stranding pitch of 46 times the wire diameter; each copper-tin alloy wire is covered with a silver plating layer, and the thickness of the silver plating layer is 0.002mm-0.005mm.

[0007] Preferably, the composite insulation layer is a double-layer structure of modified TPU and ceramicized silicone rubber, with oil resistance meeting ISO67211A level and a temperature resistance range of 50℃-150℃.

[0008] Preferably, the sheath material is a mixture of PUR, Kevlar fiber, and molybdenum disulfide, with a hardness of 95A-100A and a tensile strength ≥2000N.

[0009] Preferably, the thickness of the ferrite absorbing layer is 0.1 mm, which is used to target and absorb interference in the 10 kHz to 100 MHz frequency band.

[0010] Preferably, the outer surface of the Kevlar fiber reinforced sheath is provided with a diamond-shaped anti-slip texture.

[0011] Preferably, the outer surface of the Kevlar fiber reinforced sheath is provided with embedded wear-resistant strips.

[0012] The beneficial effects of this utility model are as follows: 1. The silver-plated alloy conductor of this utility model adopts a multi-strand stranded structure and a metal plating process to reduce energy loss in current transmission, reduce signal attenuation, ensure stable signal transmission of the automatic sorting robot arm, and enable it to execute action commands accurately.

[0013] 2. The four-layer shielding of this utility model forms a multi-level electromagnetic shielding system through the composite design of different materials, which can effectively block external electromagnetic interference and prevent the robotic arm from malfunctioning due to signal disorder.

[0014] 3. The Kevlar fiber reinforced sheath of this utility model, combined with the surface anti-slip structure, enhances the cable's anti-friction ability during drag chain movement, while improving its bending resistance, reducing structural damage caused by long-term reciprocating motion, and extending its service life.

[0015] 4. The composite insulation layer of this utility model adopts a double-layer structure of special polymer material and rubber, which has both oil resistance and wide temperature adaptability, and can maintain insulation stability in the complex environment in which the robotic arm works; the sheath material integrates a variety of high-performance components, and has the dual advantages of chemical corrosion resistance and wear resistance.

[0016] 5. The present invention provides a high-temperature resistant insulating film between the insulating layer and the shielding layer, and between each layer of the shielding layer. This not only improves the interlayer insulation, but also maintains structural stability in high-temperature environments, avoiding interlayer adhesion or performance degradation caused by temperature changes.

[0017] 6. The scientific ratio of conductor stranding process and sheath material in this utility model reduces weight while ensuring cable strength, making it more suitable for flexible dragging in high-speed robotic arm scenarios and reducing equipment load pressure. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of a drag chain cable for a high wear-resistant and bending-resistant automatic sorting robotic arm according to this utility model.

[0019] In the diagram: 1. Silver-plated alloy conductor; 2. Composite insulation layer; 3. Quadruple shielding layer; 31. Aluminum foil longitudinal wrapping layer; 32. Nano-graphene copper mesh; 33. Ferrite absorbing layer; 34. Silver-plated copper wire braided mesh; 4. Kevlar fiber reinforced sheath. Detailed Implementation

[0020] A high wear-resistant and bending-resistant automatic sorting robotic arm drag chain cable includes a silver-plated alloy conductor 1. The outer surface of the silver-plated alloy conductor 1 is sequentially covered with a composite insulation layer 2, a quadruple shielding layer 3, and a Kevlar fiber reinforced sheath 4. The quadruple shielding layer 3 consists of an aluminum foil longitudinal wrapping layer 31, a nano-graphene copper mesh 32, a ferrite absorbing layer 33, and a silver-plated copper wire braided mesh 34 from the inside out.

[0021] A 0.1mm high-temperature resistant polyester film is sandwiched between the composite insulation layer 2 and the quadruple shielding layer 3.

[0022] Each of the four shielding layers 3 has a 0.1mm high-temperature resistant polyester film sandwiched between each layer.

[0023] The silver-plated alloy conductor 1 is formed by stranding multiple copper-tin alloy wires with a stranding pitch of 46 times the wire diameter; each copper-tin alloy wire is covered with a silver plating layer with a thickness of 0.002mm-0.005mm. The composite insulation layer 2 is a double-layer structure of modified TPU and ceramicized silicone rubber, with oil resistance meeting ISO67211A level and a temperature resistance range of 50℃-150℃.

[0024] The sheath material is a mixture of PUR, Kevlar fiber, and molybdenum disulfide, with a hardness of 95A-100A and a tensile strength ≥2000N.

[0025] The ferrite absorbing layer 33 has a thickness of 0.1 mm and is used to target and absorb interference in the 10 kHz to 100 MHz frequency band.

[0026] The outer surface of the Kevlar fiber reinforced sheath 4 is decorated with a diamond-shaped anti-slip texture.

[0027] The outer surface of the Kevlar fiber reinforced sheath 4 is provided with embedded abrasion-resistant strips.

[0028] The embodiments of this utility model are as follows: A high-wear-resistant and bend-resistant automatic sorting robot drag chain cable features a silver-plated alloy conductor made of multiple strands of copper-tin alloy wire. The silver plating reduces surface resistance, ensuring stable and efficient signal transmission. The 46-fold wire diameter twisting pitch gives the cable excellent flexibility, enabling it to withstand frequent bending by the robot arm. The composite insulation layer uses a dual-layer structure of modified TPU and ceramicized silicone rubber, achieving ISO67211A oil resistance standards. It operates within a temperature range of 50℃ to 150℃, maintaining stable insulation performance even under extreme temperature differences. The four-layer shielding system provides multi-level electromagnetic protection. From the inside out, it consists of an aluminum foil longitudinal cladding layer, a nano-graphene copper mesh, a 0.1mm ferrite absorbing layer, and a silver-plated copper wire braided mesh. The ferrite absorbing layer can specifically absorb electromagnetic interference in the 10kHz-100MHz frequency band, and the high-temperature resistant polyester film placed between each shielding layer further enhances the shielding effect. The Kevlar fiber reinforced sheath is made of a blend of PUR, Kevlar fiber, and molybdenum disulfide, with a hardness ranging from 95A to 100A and a tensile strength of no less than 2000N. It possesses excellent weather resistance, high strength, and self-lubricating properties. Its outer surface features a diamond-patterned anti-slip texture and embedded wear-resistant strips, effectively reducing cable displacement and wear during high-speed cable chain movement, significantly extending cable life. Thanks to its advanced material selection and structural design, this cable provides reliable power and signal transmission support for automated sorting robots, meeting the high standards required in industrial automation.

Claims

1. A high wear-resistant and bending-resistant cable for an automatic sorting robotic arm drag chain, characterized in that, It includes a silver-plated alloy conductor (1), the outer surface of which is sequentially covered with a composite insulation layer (2), a quadruple shielding layer (3), and a Kevlar fiber reinforced sheath (4); the quadruple shielding layer (3) consists of an aluminum foil longitudinal wrapping layer (31), a nano-graphene copper mesh (32), a ferrite absorbing layer (33), and a silver-plated copper wire braided mesh (34) from the inside out.

2. The high wear-resistant and bending-resistant automatic sorting robotic arm cable according to claim 1, characterized in that, A 0.1mm high-temperature resistant polyester film is sandwiched between the composite insulation layer (2) and the quadruple shielding layer (3).

3. The high wear-resistant and bending-resistant automatic sorting robotic arm cable according to claim 1, characterized in that, Each of the four shielding layers (3) is sandwiched with a 0.1mm high-temperature resistant polyester film.

4. The high wear-resistant and bending-resistant automatic sorting robotic arm cable according to claim 1, characterized in that, The silver-plated alloy conductor (1) is formed by stranding multiple copper-tin alloy wires, with a stranding pitch of 46 times the wire diameter; each copper-tin alloy wire is covered with a silver plating layer, and the thickness of the silver plating layer is 0.002mm-0.005mm.

5. The high wear-resistant and bending-resistant automatic sorting robotic arm cable according to claim 1, characterized in that, The composite insulation layer (2) is a double-layer structure of modified TPU and ceramicized silicone rubber. Its oil resistance meets ISO67211A grade and its temperature resistance range is 50℃-150℃.

6. The high wear-resistant and bending-resistant automatic sorting robotic arm cable according to claim 1, characterized in that, The sheath material is a mixture of PUR, Kevlar fiber, and molybdenum disulfide, with a hardness of 95A-100A and a tensile strength ≥2000N.

7. The high wear-resistant and bending-resistant automatic sorting robotic arm cable according to claim 1, characterized in that, The ferrite absorbing layer (33) has a thickness of 0.1 mm and is designed to absorb interference in the 10 kHz to 100 MHz frequency band.

8. The high wear-resistant and bending-resistant automatic sorting robot arm cable according to claim 1, characterized in that, The outer surface of the Kevlar fiber reinforced sheath (4) is provided with a diamond-shaped anti-slip texture.

9. The high wear-resistant and bending-resistant automatic sorting robotic arm cable according to claim 1, characterized in that, The outer surface of the Kevlar fiber reinforced sheath (4) is provided with embedded wear-resistant strips.

Images