Tabbed Roll Sheet Material Joiner Mechanism
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Solution Overview
Problem
Existing methods for securing the free end of a roll of sheet material during manufacturing are unsatisfactory, leading to unraveling and manufacturing issues.
Innovation Solution
A method and machine for tabbing the free end of a roll using a tabber and joiner, where the joiner engages the free end with mechanical entanglement and heat welding to create a secure tab.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional tabbing methods are used to secure the free end, then the free end is held in place, but the securing method is unsatisfactory and causes unraveling
Solution Approach 1:
The tabbing device is divided into separate functional modules: a tabber for positioning and a joiner for engagement. This segmentation allows each component to perform its specific function optimally - the tabber holds the free end while the joiner creates the secure attachment, resolving the contradiction between reliable securing and manufacturing quality
Solution Approach 2:
The patent introduces an intermediary tabbing structure that mediates between the free end and the roll body. This intermediate element provides a controlled mechanism for securing the free end, preventing direct harmful forces from causing unraveling while maintaining manufacturing integrity
2Ease of manufacture
If the free end is left unsecured, then manufacturing is simpler, but the free end unravels and causes manufacturing issues
Solution Approach 1:
The tabbing operation is performed as a preliminary action during the winding process, before the roll enters subsequent manufacturing stages. The free end is secured to the roll body through the joiner mechanism while the roll is still on the spindle, preventing unraveling during transport and handling without complicating later manufacturing steps
Solution Approach 2:
The tabbing mechanism uses the roll's own structure (the roll body) as part of the securing system. The joiner engages the free end with the roll body, making the roll itself serve the dual function of being the product and the securing mechanism, thus maintaining process simplicity while ensuring 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
The method effectively secures the free end of the roll, preventing unraveling and ensuring smooth manufacturing processes.
Implementation Method 1
The joiner creates a tab with a combination of mechanical entanglement and heat welding
Implementation Method 2
The joiner creates a tab with a combination of mechanical entanglement and heat welding
Data Source
AI summary
A method and/or a machine is for tabbing a free end on a roll of sheet material. Converting a master roll of sheet material to the roll of sheet material and winding a first roll of sheet material onto a spindle at a winding position. Tabbing the free end of the roll of sheet material at a tabbing position. Where a tabber carrying a joiner are both in an initial position away from the first roll of sheet material, moving the tabber to a second position adjacent the roll of sheet material, moving the joiner into an engagement position where the joiner is engaged with the free end of the roll of sheet material. The joiner creates a tab with a combination of mechanical entanglement and heat welding. Returning the tabber and joiner to the initial positions. Doffing the tabbed roll of sheet material. The roll produced by the foregoing.