Biased Shell Container Assembly for Pad Retention
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Solution Overview
Problem
Existing devices for stacking cotton pads require a large stroke of ejectors, leading to potential twisting or tumbling of pads, which negatively affects product quality and efficiency.
Innovation Solution
A container assembly with a biased shell design, where a second shell segment is movable relative to a first shell segment, allowing pads to be retained without needing to be pushed past internal ribs, reducing ejector stroke and ensuring reliable pad orientation and retention.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a large stroke of ejectors is used to push pads past internal ribs, then pads can be removed from the collector, but pads may twist or tumble during ejection, negatively influencing product quality
Solution Approach 1:
The ejectors are positioned to engage pads before they reach the internal ribs, pushing them onto the collector's support surface in advance. This preliminary positioning prevents pads from twisting or tumbling during ejection, maintaining product quality while enabling smooth removal
Solution Approach 2:
The internal ribs are designed as intermediate support structures rather than barriers. Pads are guided onto these ribs during ejection, which then serve as temporary support surfaces that prevent tumbling while allowing controlled removal
2Ease of operation
If a large stroke of ejectors is used to push pads past internal ribs, then pads can be removed from the collector, but the punching cycle time increases
Solution Approach 1:
Pads are pushed onto the collector's support surface and positioned for removal before completing the full stroke distance. This reduces the required ejector stroke length, thereby shortening the punching cycle time while ensuring pads are ready for immediate removal
Solution Approach 2:
The ejector stroke is optimized to perform just enough action to position pads on the collector for easy removal, rather than pushing them the full distance to the ejection point. This partial action reduces cycle time while achieving the removal objective
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 biased shell design reduces ejector stroke, enhances pad retention, and maintains product quality by preventing twisting or tumbling, thus improving the economic and reliable collection of pads.
Implementation Method 1
the second shell segment is biased relative to the first shell segment to move towards said first shell segment in the clamping direction
Data Source
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AI summary
Container assembly for collecting pads, such as cosmetic pads or medical pads, wherein the container assembly comprises an elongate shell extending along a collecting axis parallel to a stacking direction and in a circumferential direction about the collecting axis, wherein the shell comprises a top side, a bottom side opposite to said top side in the stacking direction, wherein the shell is open at said top side for receiving the pads in said stacking direction and along said collecting axis, wherein the shell comprises a first shell segment and a second shell segment extending along said collecting axis between the top side and the bottom side and movable relative to one another in a clamping direction transverse to the stacking direction, wherein the second shell segment is biased relative to and towards the first shell segment in said clamping direction.