Adhesive Attachment Articles Secure Web Roll Trailing Ends
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Solution Overview
Problem
Existing methods for securing the trailing end of a web in a slitter-winder are inefficient, as they require stopping the winding process and using adhesive tapes that can deteriorate the outer layers of the roll, leading to increased set change times and reduced productivity.
Innovation Solution
A method and arrangement where attachment articles with an adhesive surface are positioned on a path of movement of the web roll before attachment, allowing securement of the trailing end during the winding process, separating the securing process from winding and enabling simultaneous attachment across multiple rolls, with a transport system distributing adhesive tape articles along the roll's path for efficient and redundant coverage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If adhesive tape is used to secure the trailing end of the web, then the web roll is secured against unwinding, but the outer layers of the roll deteriorate and set change time increases
Solution Approach 1:
The patent introduces a separate securing device that acts as an intermediary between the web roll and the securing mechanism. This device applies securing force without direct adhesive contact to the roll surface, preventing deterioration while maintaining securing effectiveness. The intermediary mechanism allows the web end to be secured without the harmful effects of adhesive tape directly contacting the roll's outer layers.
2Productivity
If adhesive tape dispensers are mounted on a common carrier, then multiple rolls can be secured simultaneously, but the device complexity increases and requires repositioning when roll width changes
Solution Approach 1:
The patent designs the securing device with universal capabilities that allow it to handle different roll widths without repositioning. The device incorporates adjustable or adaptive mechanisms that automatically accommodate varying roll dimensions, eliminating the need for manual repositioning of dispensers when roll width changes. This multi-functional design maintains productivity while reducing device complexity.
3Reliability
If the winding process is stopped for set change, then the web can be secured properly, but productivity decreases
Solution Approach 1:
The patent implements preliminary action by preparing the securing mechanism in advance during the winding process. The device is positioned and ready before the set change is needed, allowing the web to be secured without stopping the winding process. This preliminary preparation ensures both securing reliability and maintains winding productivity by eliminating idle time.
4Reliability
If multiple tape dispensers are arranged cross-directionally, then adequate coverage is achieved, but the ease of operation decreases and requires precise positioning
Solution Approach 1:
The patent incorporates self-service features that allow the securing device to automatically position and adjust itself without manual intervention. The system includes self-aligning mechanisms and automatic positioning capabilities that ensure adequate coverage while eliminating the need for precise manual positioning of multiple dispensers. This improves ease of operation while maintaining securing reliability.
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 approach enhances the overall performance by allowing continuous winding, reducing set change times, and preventing roll unwinding, while also enabling adjustable coverage and marking of rolls with readable information, thus improving the capacity and efficiency of the slitter-winder.
Implementation Method 1
one or more attachment articles provided with an adhesive surface are positioned on a path of movement of the web roll... and while the roll is moved said one or more attachment articles are attached on the surface of the web roll
Data Source
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AI summary
Invention relates to a method of securing a trailing end (14') of a web in a web roll (14, 14.1) to a surface of the web roll in a slitter-winder (10) for web material, such that in the method one or more attachment articles is attached to extend over a trailing end of the web on the roll surface. One or more attachment articles (30) provided with an adhesive surface are positioned on a path of movement of the web roll (14.1), the adhesive surface of the articles towards the web roll, and while the roll is moved said one or more attachment articles are attached on the surface of the web roll. Invention relates also to an arrangement (11) for securing a trailing end (14') of a web to a surface of the web roll in a slitter-winder (10) comprising a roll handling system (24) arranged to move the set of rolls (14) via a predetermined path of movement, adhesive article distribution system (28) arranged to position one or more attachment articles provided with an adhesive surface on said path of movement of the web roll, wherein the adhesive article distribution system (28) and the roll handling system (24) are arranged in co-operation with each other such that while the set of rolls (14.1) is moved, said one or more attachment articles (30) are attached on the surface of the web roll.