Heating Wheel Shielding Foil Removal Without Cable Layer Damage
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Solution Overview
Problem
Existing methods for removing shielding foil from shielded electrical cables, such as mechanical cutting and laser cutting, are risky, costly, and inefficient for industrial production.
Innovation Solution
A device and method using a heating wheel with a circumferential bearing rim that rolls on the shielding foil, applying heat and pressure to separate the foil without cutting, ensuring the cable's lower layers are not damaged.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If mechanical cutting is used to remove shielding foil, then the removal process is simple and fast, but it risks damaging the lower layers of the electrical cable
Solution Approach 1:
The patent replaces the traditional mechanical cutting system with a thermal separation system. A heating element is introduced to heat the shielding foil to its melting or softening temperature, causing it to separate from the underlying layers through thermal action rather than mechanical force. This substitution eliminates the risk of mechanical damage to lower cable layers while maintaining efficient removal capability.
Solution Approach 2:
The patent changes the physical state of the shielding foil by controlling temperature parameters. By heating the foil to specific temperature ranges, the material transitions from a solid state to a softened or melted state, enabling separation without mechanical cutting. This parameter change allows the removal process to proceed without applying mechanical stress that could damage underlying cable structures.
2Manufacturing precision
If laser cutting is used to remove shielding foil, then the precision and control are improved, but the cost increases and the process becomes slower
Solution Approach 1:
The patent employs a conventional heating element instead of expensive laser equipment. The heating element can be a simple resistive heater or heating wire that is cost-effective and does not require the sophisticated optical systems, mirrors, and control mechanisms of laser cutting equipment. This approach significantly reduces equipment cost while achieving adequate separation precision through controlled thermal action.
Solution Approach 2:
The patent replaces the laser optical system with a thermal conduction system. Instead of using high-energy laser beams that require precise positioning and complex control systems, the invention uses direct thermal contact or proximity heating that is inherently more forgiving and easier to control. This substitution improves productivity by eliminating the slow, precision-critical laser scanning process in favor of faster thermal diffusion.
3Ease of manufacture
If conventional heating methods are used to remove shielding foil, then the cost is reduced, but the operational reliability and flexibility are insufficient
Solution Approach 1:
The patent applies heating locally and selectively to the shielding foil rather than heating the entire cable assembly. The heating element is positioned to contact or approach only the shielding foil layer, concentrating thermal energy where needed. This localized heating approach prevents overheating of underlying cable layers while ensuring reliable separation of the shielding foil, thereby improving operational safety and reliability.
Solution Approach 2:
The patent introduces dynamic control elements to the heating system, such as adjustable heating power, controllable heating duration, and potentially movable heating elements. These dynamic features allow the system to adapt to different cable types, shielding foil thicknesses, and separation requirements, thereby improving flexibility and reliability while maintaining cost-effectiveness through the use of simple control mechanisms.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The method provides a fast, cost-effective, and flexible solution suitable for industrial use, ensuring the integrity of the cable's lower layers while allowing for efficient removal of the shielding foil.
Implementation Method 1
a heating wheel with a circumferential bearing rim for bearing on the shielding foil
Implementation Method 2
The mechanical action of the wheel, acting by rolling on the surface of the shielding foil, coupled with a supply of heat, enables separation without cutting
Data Source
Figure 1~2
Figure 3~4
Figure 5~6
AI summary
Device and method for removing a section of shielding foil from a shielded electrical cable, comprising : - a heating wheel (10) with a circumferential bearing rim for bearing on the shielding foil (5); - a pressure support (15) adapted to bring the circumferential bearing rim (23) of the heating wheel (10) into contact with the shielding foil (5) on a stripped portion (7) of the shielded electrical cable (1); - a rotating element adapted to rotate the heating wheel (10) on a separation contour (8) of the shielding foil (5).