Sheet Punching Waste Box Static Neutralization
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The existing sheet punching apparatuses face issues with static electricity charging paper chips, which can lead to erroneous full-state detection due to the chips being adsorbed to the inner wall surface of the waste box, causing the full-state detection sensor to incorrectly indicate the waste box is full.
Innovation Solution
An insulating waste box with a conductive member positioned in mid-air below the detection unit, where the conductive member is grounded to attract and neutralize static electricity from the paper chips, preventing them from adhering to the inner wall and ensuring accurate detection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the waste box is made of insulating material, then the paper chips can be naturally accumulated, but the paper chips charged with static electricity are adsorbed to the inner wall surface causing erroneous detection
Solution Approach 1:
A conductive member is introduced as an intermediary element within the waste box to intercept and neutralize static electricity on paper chips before they can be adsorbed to the insulating inner wall surface. The conductive member acts as a mediator that transfers excess charge to ground, preventing the harmful adsorption effect while maintaining the insulating waste box structure.
Solution Approach 2:
The harmful static electricity charge on paper chips is converted into a beneficial effect by using the conductive member to deliberately attract and neutralize the charge. The same electrostatic force that causes harmful adsorption to the detection sensor is redirected to favorably adsorb paper chips to the conductive member instead, eliminating the detection error.
2Measurement precision
If the full-state detection sensor is disposed on the side wall surface of the waste box, then the full state can be detected, but the sensor may erroneously detect full state when paper chips are adsorbed to it
Solution Approach 1:
The conductive member serves as an intermediary barrier between the paper chips and the detection sensor. It intercepts the electrostatically charged paper chips and neutralizes their charge, preventing them from reaching and adsorbing to the sensor surface, thus ensuring accurate detection.
Solution Approach 2:
The conductive member performs preliminary neutralization of static electricity on paper chips before they can reach the detection sensor. By pre-treating the paper chips with charge neutralization, the system prevents the subsequent harmful adsorption effect that would cause erroneous detection.
3Device complexity
If no conductive member is provided, then the waste box structure remains simple, but static electricity causes paper chips to scatter and adhere to inner walls
Solution Approach 1:
A conductive member is introduced as a simple intermediary element within the waste box to intercept and neutralize static electricity on paper chips before they can be adsorbed to the insulating inner wall surface. The conductive member acts as a mediator that transfers excess charge to ground, preventing the harmful adsorption effect while maintaining the insulating waste box structure.
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
This configuration effectively reduces static electricity on paper chips, preventing them from being adsorbed to the inner wall and the detection sensor, thus ensuring reliable detection of the waste box's full state and preventing erroneous notifications.
Implementation Method 1
a conductive member disposed such that at least a part thereof is positioned in mid air in the waste box below the detection unit, whereby the amount of paper chips can be reliably detected by the detection unit
Data Source
AI summary
A sheet punching apparatus includes a waste box formed of insulating resin, a detection sensor provided in the waste box and configured to detect the amount of paper chips in the waste box, and a conductive member disposed such that at least a part thereof is positioned in midair in the waste box below the detection sensor. With this configuration, erroneous detection of the detection sensor can be prevented.