Rewinder Machine Continuous Roll Wrapping Mechanism
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Solution Overview
Problem
Existing rewinder machines for producing rolls of tissue paper are inefficient in wrapping rolls in a protective sheet without interrupting the production cycle, making them unsuitable for modern high-productivity demands.
Innovation Solution
A rewinder machine with a system for continuously feeding web material and a distributor of sheet material that attaches and wraps the sheet around the roll without stopping the machine, using a winder unit with at least three rollers, where the third roller has a gripping mechanism to engage and transfer the sheet material, ensuring continuous production.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a rewinder machine wraps rolls in protective sheets, then rolls are packaged, but production cycle is interrupted
Solution Approach 1:
The protective sheet is attached to the web material before the winding process completes. The sheet is fed into the winder unit in advance and positioned ready for application, so that when the roll is formed, the wrapping material is already in place and can be applied without interrupting the continuous web material feed.
Solution Approach 2:
The system maintains continuous operation by having the sheet material distributor continuously feed protective sheets into the winder unit alongside the web material. The gripping mechanism continuously engages and transfers sheets without stopping the web material forward feed, ensuring both winding and wrapping operations proceed simultaneously without interruption.
2Adaptability or versatility
If a distributor of sheet material is added to the winder unit, then wrapping capability is improved, but device complexity increases
Solution Approach 1:
The winder unit is designed to perform multiple functions: it winds the web material into rolls while simultaneously receiving and applying protective sheets through the integrated distributor. The gripping mechanism serves dual purposes by handling both the web material and the sheet material, eliminating the need for separate dedicated wrapping machinery.
Solution Approach 2:
The sheet material distributor is integrated into the existing winder unit structure rather than being a separate standalone machine. The gripping mechanism is combined with the winder rollers, and the sheet material is fed through the same winder unit pathway, merging the wrapping function with the winding function in a single integrated system.
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 high-speed, uninterrupted wrapping of rolls in protective sheets, enhancing productivity by maintaining the production cycle without interruptions and allowing for efficient packaging of rolls.
Implementation Method 1
a third roller with a gripping mechanism to engage and transfer the sheet material
Data Source
AI summary
A rewinder machine for the production of rolls of web material is described, comprising: a winder unit (3, 5, 7); a path for delivering the web material (N) to said winder unit; a system for continuously feeding said web material into said winder unit; a distributor (31) of a sheet material (F) for wrapping the rolls formed by said winder unit, installed and operated so as to deliver a length of sheet material to said winder unit on completion of the winding of each roll without stopping the forward feed of the web material.