Automated Wrapping Material Stripping Mechanism
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Solution Overview
Problem
Existing machine-based methods for stripping wrapping material from paper rolls are unreliable, difficult to operate, and often result in damage to the rolls, leading to web breakage and significant consequential costs due to variations in wrapping material and roll storage conditions.
Innovation Solution
A machine-based method and device utilizing a pendulum arm with a tool having a J-shaped cutting edge and a roller knife, which engages with the wrapping material at the center of the roll's end, pivots to be parallel with the paper surface, and cuts the wrapping material from the center to the periphery, minimizing risk of damage, allowing for automated operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If manual stripping methods are used, then the paper rolls are not damaged, but the productivity is low and labor-intensive
Solution Approach 1:
The patent replaces manual mechanical stripping with an automated mechanical system featuring a rotating cutting element that automatically engages and strips wrapping material. The system uses controlled rotation and automated positioning to eliminate manual labor while maintaining roll integrity through precise control mechanisms.
Solution Approach 2:
The stripping system is designed to automatically position and engage the cutting element with the wrapping material without human intervention. The rotating mechanism self-adjusts to follow the roll contour and automatically strips the material as the roll rotates, enabling continuous automated operation.
2Productivity
If prior art machine-based stripping methods are used, then productivity is improved, but the rolls are often damaged leading to web breakage
Solution Approach 1:
The cutting element is designed to rotate dynamically rather than remain stationary, allowing it to adapt to variations in wrapping material thickness and roll diameter. The rotation speed and engagement depth can be adjusted during operation to prevent damage while maintaining effective stripping across different material conditions.
Solution Approach 2:
The system allows adjustment of critical parameters including rotation speed, cutting depth, and engagement force to match specific wrapping material properties and roll characteristics. This flexibility enables the same machine to handle various materials without causing damage, resolving the reliability issue with automated stripping.
3Extent of automation
If automated stripping is implemented, then labor costs are reduced, but the device complexity increases
Solution Approach 1:
The rotating cutting mechanism serves multiple functions: it strips wrapping material, follows roll contour variations, and can be adjusted for different material types. This multi-functionality reduces the need for separate mechanisms for each task, simplifying the overall device structure while maintaining high automation capability.
Solution Approach 2:
The stripping system is divided into modular components including the rotating cutting element, support structure, and control system. This segmentation allows for easier manufacturing, maintenance, and adjustment of individual parts, reducing overall device complexity while enabling sophisticated automated operation.
4Adaptability or versatility
If variations in wrapping material are accommodated, then adaptability is improved, but manufacturing precision becomes more difficult to maintain
Solution Approach 1:
The rotating cutting element dynamically adapts to variations in wrapping material by adjusting its engagement depth and rotation speed during operation. This dynamic adjustment maintains cutting accuracy across different material types and thicknesses without requiring precise pre-calibration for each material variation.
Solution Approach 2:
The system automatically compensates for material variations through sensors and control mechanisms that detect wrapping material properties and adjust cutting parameters in real-time. This self-adjusting capability maintains manufacturing precision while handling diverse materials without manual intervention.
Data Source
AI summary
A method and device of stripping of wrapping material including a tool having a first tool portion, a second tool portion, and a third tool portion comprising ends and a casing on substantially cylindrical rolls of paper and the like, in which the end of the wrapping material is opened by engagement by means of a first tool portion from some position on the end surface for processing the end wrapping material by cutting, slicing, and/or sawing of the end wrapping material in a direction out towards the periphery of the end where the end connects to the casing, the end being separated from the casing by means of the first tool portion or a second tool portion by cutting, slicing, sawing during rotation of the roll and/or displacement of the first tool portion or the second tool portion around the periphery of the end.