Web Product Stacking Suction Alignment
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Solution Overview
Problem
Conventional web product folding and stacking machines experience issues with web products shifting on slippery surfaces during initial stacking, leading to unkempt stacks due to the extension of stoppage units, which can pull adjacent products out of alignment.
Innovation Solution
Incorporating at least one suction device on the top surface of the first carrier unit to create negative pressure, ensuring web products remain aligned and securely stacked, and utilizing rotatable folding line making rolls with longitudinal protrusions and grooves to form a folding line.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the first carrier unit has a slippery surface to facilitate web product movement, then the web products can be easily transferred, but the web products may shift from their predetermined position during initial stacking
Solution Approach 1:
The suction device is activated before the folding fingers perform the stacking operation to secure the web product in position in advance, preventing any potential shifting during the subsequent stacking process
Solution Approach 2:
The suction device acts as an intermediary mechanism between the slippery carrier unit surface and the web product, providing the necessary adhesion force to counteract the low friction surface while maintaining easy transfer capability
2Productivity
If the stoppage unit is extended out to isolate the interfolded web products, then the stacking process can be controlled, but the stoppage unit or second web product may pull the first web product to cause it to leave predetermined position
Solution Approach 1:
The suction device applies a holding force to the web product before the stoppage unit extends, creating a counter-action that prevents the web product from being pulled out of position by the stoppage unit or subsequent web products
Solution Approach 2:
The suction device secures the web product in its predetermined position before the stoppage operation begins, ensuring that when the stoppage unit extends to isolate the stack, the web product remains firmly in place and cannot be displaced
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 suction device maintains web product alignment and secure stacking, preventing shifts during initial stacking and allowing for accurate, neat interfolded stacks, even with harder products.
Implementation Method 1
at least one suction device arranged on the first surface of the first carrier unit for sucking the interfolded web product on the first surface of the first carrier unit
Data Source
AI summary
A web product folding and stacking machine includes two folding line making rolls, two folding fingers, a first carrier unit, a stoppage unit and a holder. The folding line making rolls and the folding fingers are operated to fold up web products on the first carrier unit to form a stack of interfolded web products. Further, there is at least one suction device arranged on the top surface of the first carrier unit to suck the web products nearing the top surface of the first carrier unit and facilitate accurate stacking of the interfolded web products.