Winding Roller Sheet Separation Device for Bonded Two-Ply Sheets
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Solution Overview
Problem
Existing sheet separation devices struggle to effectively separate two-ply sheets where only one side is bonded, often damaging the sheets and increasing device size and cost.
Innovation Solution
A sheet separation device incorporating a winding roller and gripper that winds the two-ply sheet around the roller, creating a gap between the sheets at the non-bonding portion without abutting the sheet tip on any member, using elastic materials to grip and separate the sheets without damage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional sheet separation devices are used to separate two-ply sheets, then separation can be achieved, but the sheets are often damaged and device size and cost increase
Solution Approach 1:
The sheet separation device is divided into multiple functional components: a feeding unit that feeds sheets one by one, a bonding unit that bonds sheets, and a separation unit that separates two-ply sheets. Each unit performs a specific function, allowing the system to separate sheets effectively while maintaining sheet integrity and controlling device complexity through modular design
Solution Approach 2:
A separation sheet is introduced as an intermediary element in the separation process. The separation sheet is fed into the two-ply sheet from the feeding unit, and its leading end is inserted between the bonded sheets. This intermediary sheet acts as a mediator that enables separation without directly applying damaging forces to the original sheets, thus maintaining sheet integrity while achieving effective separation
2Force
If sheets are abutted on members during separation, then separation force can be applied, but the sheet tips are damaged
Solution Approach 1:
The separation sheet is prepared in advance with its leading end positioned to be inserted between the bonded sheets before the separation process begins. The feeding unit feeds the separation sheet first, and its leading end is inserted into the two-ply sheet at the bonding portion. This preliminary positioning allows separation force to be applied through the separation sheet rather than directly to the sheet tips, preventing damage while maintaining effective separation
Solution Approach 2:
The separation sheet serves as a mediator that transmits separation force through its structure. Instead of applying force directly to the vulnerable sheet tips, the force is applied to the separation sheet which then distributes the stress along its length as it works between the bonded sheets. This intermediary approach maintains sheet integrity while achieving the necessary separation force
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 device efficiently separates two-ply sheets without damaging them, maintaining the integrity of the sheets and reducing the device's size and cost, while ensuring precise control over the separation process.
Implementation Method 1
a gripping portion configured to grip the two-ply sheet, wherein the gripping portion includes an elastic material
Data Source
AI summary
A sheet separation device separates a non-bonding portion of a two-ply sheet in which two sheets are overlapped and bonded together at a bonding portion of the two-ply sheet. The sheet separation device includes a winding roller and a gripper. The winding roller rotates and winds the two-ply sheet to separate the two-ply sheet. The gripper is disposed in the winding roller and configured to grip a gripped portion of the two-ply sheet at one end of the two-ply sheet without abutting a tip of the gripped portion at the one end of the two-ply sheet on a member.