Anti-bending robot moving cable structure

By combining the cable core, filling layer, shielding layer, insulation layer, and anti-bending layer, the problem of conductor breakage and shielding failure under high-frequency bending and torsion in robot mobile cables is solved, improving the cable's flexibility and shielding effect, and reducing maintenance costs.

CN120998581APending Publication Date: 2025-11-21TONGLE CABLE (JIANGSU) CO LTD
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Patent Information

Application Number
CN202511323574.7
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-09-16
Publication Date
2025-11-21

AI Technical Summary

Technical Problem

Existing robot mobile cables are prone to problems such as conductor breakage, insulation wear, and shielding failure under high-frequency bending and torsion conditions. They have poor flexibility, low bending resistance, and weak tensile strength and buffering, which affect the reliability and maintenance cost of robots.

Method used

The cable adopts a combined structure of cable core, filling layer, shielding layer, insulation layer, heat insulation layer and bending-resistant layer. It uses a cable core made of flexible steel wire, a TPU cotton filling layer, a shielding layer woven with multi-strand fine copper wire, a thermoplastic polyurethane insulation layer and a TPE thermoplastic elastomer bending-resistant layer to enhance the cable's flexibility and shielding effect.

Benefits of technology

It improves the cable's toughness and tensile strength, prevents conductor breakage, maintains flexibility, enhances shielding effectiveness, and reduces maintenance costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention discloses an anti-bending robot moving cable structure, and relates to the technical field of robots, the anti-bending robot moving cable structure comprises a cable core, a filling layer, a shielding layer, an insulating layer, a thermal insulation layer, an anti-bending layer and a movable rubber ring, the outer end of the cable core is provided with the filling layer, the outer end of the filling layer is provided with the shielding layer, the outer end of the shielding layer is provided with the insulating layer, and the outer end of the thermal insulation layer is provided with the movable rubber ring. A heat insulation layer is arranged at the outer end of the insulating layer and provided with an anti-bending layer. According to the invention, through the arrangement of the cable core, the anti-bending layer and the movable rubber ring, the cable core made of flexible steel wires in the device can cooperate with the anti-bending layer made of TPE thermoplastic elastomer material at the outermost layer, so that the toughness of the whole cable in use can be improved, the anti-stretching capability can be improved, and the situation that the cable is stretched to cause conductor breakage during bending is avoided; meanwhile, the flexibility is not influenced, and the TPE material is low in cost and easy to process and has both flexibility and rigidity.
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Description

Technical Field

[0001] This invention relates to the field of robotics, specifically to a bending-resistant robot movement cable structure. Background Technology

[0002] This stems from the urgent need for highly flexible, bend-resistant, torsion-resistant, and long-life cables for industrial robots. Traditional cables are prone to conductor breakage, insulation wear, and shielding failure under high-frequency bending, torsion, and complex motion conditions, affecting robot reliability and maintenance costs. Traditional robot cables also suffer from poor flexibility, low bend resistance, and weak tensile strength and cushioning. Therefore, a bend-resistant robot mobile cable structure is needed.

[0003] Existing robot mobility cable structures suffer from poor flexibility, low bending resistance, weak tensile strength and cushioning, and poor shielding and protection during operation. Therefore, there is an urgent need for a bending-resistant robot mobility cable structure. Summary of the Invention

[0004] Based on this, the purpose of the present invention is to provide a bending-resistant robot mobile cable structure to solve the problems of poor flexibility, low bending resistance, weak tensile strength and buffering, and poor shielding and protection of existing robot mobile cable structures during operation.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a bending-resistant robot mobile cable structure, comprising a cable core, a filling layer, a shielding layer, an insulation layer, a heat insulation layer, a bending-resistant layer, and a movable rubber ring. The cable core is provided with a filling layer at its outer end, the filling layer is provided with a shielding layer at its outer end, the shielding layer is provided with an insulation layer at its outer end, the insulation layer is provided with a heat insulation layer at its outer end, the heat insulation layer is provided with a bending-resistant layer, and the bending-resistant layer is fitted with a movable rubber ring.

[0006] Preferably, the cable core is embedded in the filler layer, and the cable core is made of flexible steel wire.

[0007] Preferably, the filling layer is tightly packed with the shielding layer, and the filling layer uses TPU cotton to fill the gaps between the core wires.

[0008] Preferably, the shielding layer is tightly bonded to the insulating layer, and the shielding layer is a multi-strand fine copper wire braided shield.

[0009] Preferably, the insulating layer is tightly bonded to the heat insulation layer, and the insulating layer is made of thermoplastic polyurethane material.

[0010] Preferably, the anti-bending layer is movably connected to the movable rubber ring, and the anti-bending layer is a TPE thermoplastic elastomer material.

[0011] Compared with the prior art, the beneficial effects of the present invention are:

[0012] 1. The present invention, through the cable core, anti-bending layer and movable rubber ring, can improve the overall toughness of the cable during use and enhance its tensile strength by using the cable core made of flexible steel wire in the device, combined with the anti-bending layer made of TPE thermoplastic elastomer material on the outermost layer. This prevents the cable from being stretched and causing the conductor to break when bent, while not affecting the flexibility. Furthermore, TPE thermoplastic elastomer material is low-cost and easy to process, balancing both flexibility and rigidity.

[0013] 2. This invention features a cable core, a filling layer, a shielding layer, and an insulation layer. The filling layer, made of TPU cotton, fills the gaps between the core wires, preventing them from rubbing against each other during bending and maintaining the cable's roundness. The thermoplastic polyurethane material directly withstands the tensile and compressive stresses during bending, maintaining the cable's strength and flexibility. The shielding layer, made of multiple strands of fine copper wire, ensures effective shielding during use. Attached Figure Description

[0014] Figure 1 This is a frontal three-dimensional structural diagram of the present invention;

[0015] Figure 2 This is a frontal three-dimensional trapezoidal diagram of the present invention;

[0016] Figure 3 This is a frontal three-dimensional structural cross-sectional view of the present invention;

[0017] Figure 4 This is a schematic diagram of the cable core and the anti-bending layer of the present invention.

[0018] In the diagram: 1. Cable core; 2. Filler layer; 3. Shielding layer; 4. Insulation layer; 5. Heat insulation layer; 6. Bending resistance layer; 7. Movable rubber ring. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0020] The embodiments of the present invention will now be described.

[0021] Please see Figures 1-4A bending-resistant robot mobile cable structure includes a cable core 1, a filling layer 2, a shielding layer 3, an insulation layer 4, a heat insulation layer 5, a bending-resistant layer 6, and a movable rubber ring 7. The filling layer 2 is located at the outer end of the cable core 1, and the cable core 1 is embeddedly connected to the filling layer 2. The cable core 1 is made of flexible steel wire. The flexible steel wire material of the cable core 1, combined with the outermost TPE thermoplastic elastomer material bending-resistant layer, improves the overall cable's toughness during use. A shielding layer 3 is located at the outer end of the filling layer 2, and the shielding layer 3 is connected to the insulation layer 7. 4. The shielding layer 3 is made of multi-strand fine copper wire braided shielding. The shielding layer 3 made of multi-strand fine copper wire braided shielding layer improves the shielding effect of the cable during use and reduces mutual interference. An insulation layer 4 is provided at the outer end of the shielding layer 3, and a heat insulation layer 5 is provided at the outer end of the insulation layer 4. The insulation layer 4 and the heat insulation layer 5 are closely attached. The insulation layer 4 is made of thermoplastic polyurethane material. The thermoplastic polyurethane material can improve the insulation effect of the entire cable and maintain the safety of use. The heat insulation layer 5 is provided with an anti-bending layer 6, and the anti-bending layer 6 is fitted with a movable rubber ring 7.

[0022] Working principle: In use, the entire cable is made of flexible steel wire material. When the outer end of the cable core 1 is wrapped by the shielding layer 3, TPU cotton is filled inside the cable core 1 and the shielding layer 3 to keep them full. Then, an insulation layer 4 and a heat insulation layer 5 are wrapped outside the shielding layer 3 to improve the insulation effect and heat resistance of the cable during use, ensuring normal and safe use in high-temperature environments. Finally, the outer anti-bending layer 6 directly bears the tensile and compressive stress during bending, maintaining the strength of the cable and retaining its flexibility. This completes the use of the device. The contents not described in detail in this manual are existing technologies known to those skilled in the art.

[0023] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A bending-resistant robot mobile cable structure, comprising a cable core (1), a filling layer (2), a shielding layer (3), an insulation layer (4), a heat insulation layer (5), a bending-resistant layer (6), and a movable rubber ring (7), characterized in that: The outer end of the cable core (1) is provided with a filling layer (2), the outer end of the filling layer (2) is provided with a shielding layer (3), the outer end of the shielding layer (3) is provided with an insulation layer (4), the outer end of the insulation layer (4) is provided with a heat insulation layer (5), the heat insulation layer (5) is provided with an anti-bending layer (6), and the anti-bending layer (6) is fitted with a movable rubber ring (7).

2. The anti-bending robot mobile cable structure according to claim 1, characterized in that: The cable core (1) is embedded in the filling layer (2), and the cable core (1) is made of flexible steel wire.

3. The anti-bending robot mobile cable structure according to claim 1, characterized in that: The filling layer (2) is tightly filled with the shielding layer (3), and the filling layer (2) uses TPU cotton to fill the gaps between the core wires.

4. The anti-bending robot mobile cable structure according to claim 1, characterized in that: The shielding layer (3) is tightly bonded to the insulating layer (4), and the shielding layer (3) is a multi-strand fine copper wire braided shield.

5. The anti-bending robot mobile cable structure according to claim 1, characterized in that: The insulating layer (4) is tightly bonded to the heat insulation layer (5), and the insulating layer (4) is made of thermoplastic polyurethane material.

6. The anti-bending robot mobile cable structure according to claim 1, characterized in that: The anti-bending layer (6) is movably connected to the movable rubber ring (7), and the anti-bending layer (6) is a TPE thermoplastic elastomer material.