Card Supply Mechanism with Eccentric Cam for Humidity Separation
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Solution Overview
Problem
Blank PVC cards tend to stick together in high humidity environments, making it difficult for gravity-based card supplying mechanisms to separate and supply cards effectively, resulting in an uneven load on the bottommost card.
Innovation Solution
A card supplying mechanism with a vertical card storage unit, support and aligning means, a moving member that raises and lowers to separate cards, and a kicking mechanism to sequentially dispense the bottommost card, reducing the load on the bottommost card and improving separation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If cards are stacked vertically and supplied using gravity-based method, then card storage capacity is increased, but card separation becomes difficult in high humidity environments
Solution Approach 1:
The support means raises one side of the stacked cards to a predetermined height position before the kicking means supplies the bottommost card. This preliminary lifting action creates separation between cards in advance, preventing them from sticking together due to humidity, and ensures the bottommost card can be supplied smoothly without being burdened by the full weight of the stack.
Solution Approach 2:
The support means acts as an intermediary mechanism between the vertically stacked cards and the kicking means. It temporarily supports and elevates one side of the card stack, creating a gap that facilitates card separation and reduces the load on the bottommost card during the supply process.
2Productivity
If cards are stacked in large quantity, then productivity is improved, but the load on the bottommost card increases causing supply issues
Solution Approach 1:
The support means performs a preliminary lifting action on one side of the card stack before the kicking means operates. This raises the cards at a predetermined height position, effectively distributing the weight and reducing the load on the bottommost card that needs to be supplied, thereby enabling reliable supply even when large quantities of cards are stacked.
3Adaptability or versatility
If cards are held in high humidity environment, then operational flexibility is maintained, but card sticking occurs preventing separation
Solution Approach 1:
The support means raises one side of the cards to a predetermined height position before supply, creating separation between cards in advance. This preliminary action counteracts the sticking effect caused by high humidity, ensuring that cards can be reliably separated and supplied regardless of environmental conditions.
Solution Approach 2:
The support means serves as an intermediary that physically separates cards by lifting one side to a predetermined height. This mechanical intervention overcomes the adhesive forces caused by humidity, ensuring reliable card separation and supply in high humidity environments.
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 mechanism ensures secure and efficient supply of cards by reducing the load on the bottommost card and preventing sticking, allowing for reliable operation even in humid conditions.
Implementation Method 1
The rising and lowering action of the moving member causes cards to drop, thereby facilitating their separation.
Data Source
AI summary
A card supplying mechanism includes a card stacker with a motor-driven rotatable eccentric cam for sequentially raising and lowering a moving member having an oblique, step-shaped card touching surface. A motor rotates the cam to a position of maximum diameter, thereby lifting vertically-stacked cards with the oblique, step-shaped card touching surface. The motor then drives further to rotate the cam to a position of minimum diameter, thereby separating one end of the cards on an oblique card support surface so as to mutually offset stacked cards. A kick roller then discharges from the stacker a bottommost stacked card. The card supplying mechanism provides a reliable supply of cards by virtue of both improved card separation, and reduced load on the bottommost card that is to be supplied.