Rotary Hose Peeling Device with Thermal Cutting
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Solution Overview
Problem
Existing methods for peeling the ends of multi-layer hoses, especially those with metal or textile inserts, result in significant smoke and dust pollution, require complex cleaning devices, and involve costly changeover times due to the need for multiple specialized tools and settings for different hose diameters and pressure classes.
Innovation Solution
A device featuring a rotatable mandrel holder with multiple mandrels and a knife holder with adjustable cutting edges that can move against the hose, allowing for efficient peeling of the outermost layer without generating dust and reducing the need for multiple tools and changeovers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a steel brush is used to brush off the outermost layer of hoses, then the top rubber can be removed, but significant smoke and dust pollution is generated on the inside of the hose, workplace and environment
Solution Approach 1:
The patent replaces the mechanical brushing system with a thermal processing system. A heating element heats the outermost layer to a temperature where it becomes pliable and can be easily peeled away without generating dust or smoke. This substitution of mechanical action with thermal action eliminates the harmful pollutants while achieving the same peeling function.
Solution Approach 2:
The patent changes the physical state of the outermost layer by controlling temperature parameters. By heating the material to a specific temperature range, the rubber transitions from a rigid state to a pliable state, allowing for clean removal without mechanical brushing. This parameter change (temperature control) transforms the peeling process from a dusty mechanical operation to a clean thermal process.
2Adaptability or versatility
If multiple specialized tools and settings are used for different hose diameters and pressure classes, then various hose types can be processed, but costly changeover times and test pieces are required
Solution Approach 1:
The patent designs a universal peeling device with adjustable components that can accommodate various hose diameters and types through a single standardized system. The tool carrier and heating elements can be adjusted to process different hose specifications without requiring complete tool changes, making one device perform multiple functions across different hose categories.
Solution Approach 2:
The patent employs dynamically adjustable components including variable speed rotation for the tool carrier and adjustable heating parameters. These dynamic adjustments allow the same physical device to adapt to different hose types in real-time, eliminating the need for static, dedicated tools for each hose specification and reducing changeover time to minimal adjustment time.
3Manufacturing precision
If the hose is rotated around its own axis while brushing, then the outermost layer can be removed evenly, but the process becomes cumbersome with long hoses
Solution Approach 1:
Instead of rotating the long hose around its own axis (which is difficult and cumbersome), the patent inverts the approach by rotating the peeling tool carrier around the stationary hose. This reversal of the rotation subject makes the process much easier to handle, as the tool is compact and easy to rotate while the long hose remains stationary and supported.
Solution Approach 2:
The patent introduces a tool carrier as an intermediary between the heating element and the hose. This carrier rotates around the hose and carries the heating elements, allowing the peeling action to be applied evenly around the hose circumference without requiring the hose itself to rotate. The intermediary carrier absorbs the rotational motion while the hose remains stationary.
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
This solution eliminates environmental pollution, reduces maintenance and personnel requirements, and minimizes changeover and testing times by allowing for efficient peeling of hoses of various diameters and pressure classes with fewer special tools.
Implementation Method 1
a compression spring counteracts the centrifugal force of the knife bolt when the knife holder rotates
Implementation Method 2
a compression spring counteracts the centrifugal force of the knife bolt
Data Source
Figure 1~2
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Figure 5
AI summary
Device for peeling ends of multi-layered hoses (1) comprising a middle layer from the group comprising metals and textiles for subsequently crimping a hose fitting onto the hose. To solve the problem of producing great compressive resistance and leakproofness of the hose lines, while at the same time avoiding environmentally polluting rubber dust when removing the upper rubber, reducing expenditure on special additional tools in the form of peeling heads and eliminating time losses caused for technical reasons when they are changed over, the device is characterized by a) a mandrel holder (18), which is rotatable about an axis and comprises a number of mandrels (19) arranged on the circumference for pushing on hoses (1), and b) a blade holder (16), which is rotatable about the same axis and comprises at least one blade (17), the cutting edge (17a) of which can be moved against the hose (1).