Inclined Transfer Surface for Web Roll Tail Attachment
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Solution Overview
Problem
Existing methods for attaching a web roll tail in fibre-web machines, such as paper and board machines, require a separate heavy tail-attaching station with a rotating and movable beam, which is inefficient and cumbersome.
Innovation Solution
A novel arrangement where the web roll is pushed onto an inclined transfer surface and received by a beam with rotating or sliding rolls, allowing controlled descent and attachment of the web tail using adhesive material, eliminating the need for a separate tail-attaching station.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a separate tail-attaching station is used, then the web roll tail can be attached, but the device complexity and operational efficiency deteriorate due to heavy apparatus requirements
Solution Approach 1:
The tail-attaching function is merged with the existing slitter-winder machine structure. The beam assembly with tail-attaching means is integrated into the slitter-winder framework, eliminating the need for a separate heavy tail-attaching station while maintaining the capability to attach web roll tails effectively
2Reliability
If a separate tail-attaching station with rotating beam is used, then the web roll tail can be attached, but the loss of time and productivity worsen due to stopping the web roll
Solution Approach 1:
The tail attachment process is performed periodically during the normal operation of the slitter-winder. The web roll continues to rotate and the tail attachment is executed at appropriate intervals without requiring complete stops, thereby minimizing operational downtime and maintaining productivity
3Reliability
If a separate movable beam with frame structure is used, then the tail can be attached, but the weight of moving object increases
Solution Approach 1:
The beam assembly is designed to serve multiple functions: it supports the tail-attaching means, provides a structure for adhesive application, and integrates with the existing slitter-winder framework. This multi-functionality reduces the need for additional separate structures and minimizes the overall weight of moving components
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
Enables efficient, quick, and smooth tail attachment without stopping the web roll, reducing operational complexity and enhancing productivity by integrating the tail-attaching process within the slitter-winder operation.
Implementation Method 1
a transfer surface which is inclined descending from the slitter-winder towards a plane of the floor level of the machine hall
Data Source
Figure 1
Figure 2
Figure 3A~3C
AI summary
The invention relates to an arrangement in the handling of web rolls, particularly in the handling of partial web rolls (10) in connection with slitter-winders of fibre-web machines, such as paper and board machines, for attaching a tail of the web roll (10). The arrangement comprises a transfer surface (20) which is inclined descending from the slitter-winder towards a plane of the floor level of the machine hall, a receiving beam (21) into connection with which are arranged tail-attaching means (24).