Large Cable Ring Cutter With Automatic Blade Feed Control
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Solution Overview
Problem
Existing equipment for cutting cable insulation in large cables often results in uneven depth, potentially damaging the internal structure and posing safety risks due to the hardness and smooth surface of the copper shielding layer.
Innovation Solution
A ring cutting tool with automatic blade advancement, featuring a base, support, adjustment, and cutting components, including a drive mechanism and locking system, which reduces cutting pressure and prevents damage by allowing controlled, circular cutting of cable insulation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If traditional cable stripping tools (electric knives, hook knives, utility knives) are used to cut cable insulation, then the cutting operation can be performed, but the cutting depth becomes uneven and the internal structure of the cable may be damaged
Solution Approach 1:
The cutting blade is segmented into multiple independent cutting edges arranged radially around the cable axis. Each cutting edge can be independently adjusted radially outward from the rotary ring, allowing precise control of cutting depth for each segment. This segmentation enables uniform cutting depth around the entire circumference of the cable, solving the problem of uneven cutting depth caused by traditional single-blade tools.
Solution Approach 2:
The cutting system transitions from a static blade position to a dynamic adjustable configuration. The cutting edges are mounted on adjustable holders that can move radially outward from the rotary ring during operation. This dynamic adjustment capability allows the cutting depth to be precisely controlled and maintained uniformly, preventing damage to the cable's internal structure while ensuring complete insulation removal.
2Productivity
If traditional cutting tools are applied to large cables with thick insulation, then the insulation can be removed, but the hardness and smooth surface of the copper shielding layer cause instability during cutting
Solution Approach 1:
The cutting force is distributed across multiple cutting edges arranged radially around the cable, rather than concentrating force at a single point. This segmentation of the cutting action provides stability when encountering the hard, smooth copper shielding layer, as the distributed contact prevents blade slippage and maintains consistent cutting depth throughout the rotation.
Solution Approach 2:
Each cutting edge is independently adjustable radially outward from the rotary ring, allowing local optimization of cutting parameters. This enables each segment of the blade to maintain optimal contact with the cable surface, ensuring stable cutting performance across the entire circumference even when encountering variations in insulation thickness or shielding layer hardness.
3Productivity
If existing cutting equipment is used on large cables, then insulation stripping can be achieved, but safety risks arise due to potential damage to internal cable structure
Solution Approach 1:
The cutting edges are mounted on dynamically adjustable holders that can move radially outward from the rotary ring during operation. This dynamic adjustment mechanism allows precise control of cutting depth, ensuring that the blade penetrates only through the insulation layer without damaging the underlying copper shielding and internal cable structures. The ability to adjust each cutting edge independently provides redundancy, maintaining reliability even if one cutting edge encounters resistance.
Data Source
AI summary
Disclosed is a ring cutting tool for large cables including an installation component having a base and a middle support; an adjustment component at the support's bottom, the adjustment component includes an adjustment seat located at the bottom of the support, a scale component set inside the adjustment seat and a feeding component positioned inside and outside the adjustment seat; and a ring cutting component positioned at the bottom of the adjustment seat, the ring cutting component includes a drive component positioned between the base and the support, a cutting blade positioned at the bottom of the adjustment seat, and a locking component positioned inside the cutting blade. These components and the ring cutting component arrangement allow the device to automatically advance the cutting blade when cutting cable insulation, which not only reduces the cutting pressure of the device but also prevents damage to the interior of the cable.