Paper Stacking Device Air Flow Control
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing paper stacking devices face challenges in efficiently stacking paper without sticking, particularly due to issues with air volume adjustment and holder length, which affect productivity and misalignment.
Innovation Solution
A paper stacking device with an aligning plate, paper floating member, and blower that adjusts air flow to prevent sticking by switching between a paper floating position and retreat position, ensuring proper alignment and air circulation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If air is blown strongly to prevent paper sticking, then paper sticking is suppressed, but paper misalignment occurs and productivity decreases
Solution Approach 1:
The invention applies air blowing locally only to the side ends of the paper rather than the entire paper surface. The blowing openings are positioned at both sides of the aligning plate to blow air toward the side ends of the paper, preventing sticking only where it occurs most frequently while avoiding excessive air flow that would cause misalignment.
Solution Approach 2:
The invention segments the air blowing function by providing separate blowing openings at both sides of the aligning plate, allowing independent control of air flow to left and right side ends of the paper. This segmentation enables precise air flow application to prevent sticking without causing overall paper misalignment.
2Ease of operation
If holder length is increased to support large paper sizes, then paper support is improved, but operation time increases and productivity decreases
Solution Approach 1:
The invention extracts the paper support function from a long holder and implements it through a series of short guide members arranged in sequence. Each guide member has a short extension that collectively provides sufficient support length for large paper sizes, eliminating the need for a single long holder that would slow down operation.
Solution Approach 2:
Instead of extending the holder in one dimension (length), the invention uses multiple short guide members arranged in a sequence along the paper ejection direction. This transforms the solution from a single long component to multiple short components distributed in space, maintaining support capability while reducing individual component length and operation time.
3Object-affected harmful factors
If air blowing is applied continuously to prevent sticking, then paper sticking is suppressed, but energy consumption increases and paper may become misaligned
Solution Approach 1:
The invention implements periodic action by controlling the blower to operate only during specific phases: before paper ejection, during ejection, and briefly after ejection. The blower is stopped during other phases, creating a periodic operation pattern that reduces energy consumption while maintaining effective paper floating during critical periods.
Solution Approach 2:
The invention applies preliminary action by activating the blower before paper ejection begins and maintaining it during the ejection process. This ensures paper is already floating and separated from the stack before contact occurs, preventing sticking without requiring continuous air blowing throughout the entire stacking cycle.
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 solution effectively prevents paper sticking and maintains productivity by supporting paper ends and adjusting air flow dynamically, ensuring efficient stacking and alignment.
Implementation Method 1
a blower that is provided on the side of the paper across the aligning plate, and blows air
Implementation Method 2
causes the paper ejected from the paper ejector to float from uppermost paper stacked on the stacker
Data Source
AI summary
A paper stacking device includes: a stacker on which paper is stacked; a paper ejector that ejects the paper; an aligning plate that is provided on a side of the paper, and aligns a side end of the paper; a paper floating member that is provided in the aligning plate, and supports, from below, the side end of the paper; and a blower that is provided on the side of the paper across the aligning plate, and blows air, wherein the aligning plate includes a blowing opening through which air from the blower is blown, the paper floating member is switched between: a paper floating position; and a retreat position, when the paper floating member is located in the paper floating position, the blowing opening is opened, and when the paper floating member is located in the retreat position, the blowing opening is shielded.