Variable Width Turn-Up Tape Track for Paper Machines
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Solution Overview
Problem
Existing paper processing machines face inefficiencies in the turn-up process due to variable web widths and thicknesses, leading to waste and increased operational complexity, as current methods require time-consuming adjustments and can result in paper web nicking or slashing during the spool change process.
Innovation Solution
A system with a transverse turn-up tape track mounted on linear bearings, allowing for dynamic adjustment of the track curve and exit point position, enabling reliable and efficient turn-up procedures on paper processing machines, even with varying web widths and thicknesses, without disrupting the paper web flow.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the exit point of the paperband track is positioned near the edge of the paper web to reduce free length, then the risk of paper web nicking is reduced, but the system cannot adapt to variable web widths
Solution Approach 1:
The paperband track exit point is made movable along the paper web width direction, allowing dynamic repositioning according to actual web width. This enables the system to adapt to variable web widths while maintaining optimal positioning to prevent paper web nicking, resolving the contradiction between reliability and adaptability.
Solution Approach 2:
The adjustable exit point mechanism provides universal applicability across different web widths and converting machine configurations. A single system design can handle multiple web width scenarios by repositioning the exit point, eliminating the need for multiple fixed-position tracks for different web sizes.
2Reliability
If the transverse track is shortened to reposition the exit point closer to the web edge, then paper web protection is improved, but the adjustment process becomes complex and time-consuming
Solution Approach 1:
The transverse track is divided into adjustable segments or sections, allowing the exit point to be repositioned independently without requiring complete disassembly and reconfiguration of the entire track system. This segmentation simplifies the adjustment process while maintaining paper web protection.
3Ease of operation
If the exit point is repositioned for narrow webs, then the free length control is improved, but the system requires disconnecting and reconfiguring track sections
Solution Approach 1:
The exit point positioning mechanism is designed to be dynamically adjustable during operation or between runs without requiring complete track disconnection. This allows quick repositioning for different web widths, maintaining ease of free length control while minimizing downtime and reconfiguration time.
Data Source
AI summary
Apparatus for variable width turn-up procedures on a paper processing machine. The apparatus may include a turn-up tape dispenser fixedly attached to a proximal end of a transverse track and movable with the transverse track along the first linear bearing. A movable turn-up tape exit point may be mounted to a second linear bearing. The second linear bearing may be independent of the transverse track or attached to the transverse track. The apparatus may include a brake operable to secure the transverse track in a position relative to the surface of the first spool. Furthermore, the apparatus may include a movable track curve that allows a placement of the track curve to be moved.