Sheet Stacking Guide Vibration for Precise Edge Alignment

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Solution Overview

Problem

Conventional systems struggle to stack sheets, such as sheet electrodes, in a precisely aligned manner.

Innovation Solution

A stacking apparatus with a stacking table, guide members, and a vibrator that applies micro-vibration to guide members to align sheets, using a system that includes a guiding apparatus and stacking apparatus to alternate and precisely stack sheets.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Manufacturing precision

If conventional guide members are used without vibration, then the structure is simple, but the sheets cannot be precisely aligned due to friction and misalignment

Engineering Contradiction:
Improvealignment precisionVSAvoidstructure complexity
Core Design Contradiction:
Manufacturing precisionVSDevice complexity

Solution Approach 1:

The patent applies mechanical vibration to guide members (131, 132, 141, 142) to reduce friction between sheets and guide surfaces. The vibration enables sheets to slide more smoothly along the guide members, achieving precise alignment in the stacking direction without requiring complex adjustment mechanisms. This directly resolves the contradiction by improving alignment precision through vibration while maintaining relatively simple guide member structures.

Inventive Principle:
Principle #18Mechanical vibration

Solution Approach 2:

The patent changes the physical state of the guide members by applying vibration, which dynamically alters the friction characteristics between the sheets and guide surfaces. This parameter change (from static friction to dynamic vibration-assisted friction) enables precise alignment without requiring complex mechanical adjustments to the guide member geometry or positioning.

Inventive Principle:
Principle #35Parameter changes

2Productivity

If sheets are stacked at high speed without vibration, then productivity is high, but jamming and misalignment occur frequently

Engineering Contradiction:
Improvestacking speedVSAvoidstacking reliability
Core Design Contradiction:
ProductivityVSReliability

Solution Approach 1:

The vibration applied to the guide members prevents sheets from jamming during high-speed stacking by continuously reducing frictional resistance. This allows sheets to be fed and positioned reliably at high speeds without the misalignment and jamming problems that would otherwise occur. The vibration ensures consistent sheet movement through the stacking process, maintaining both high productivity and high reliability.

Inventive Principle:
Principle #18Mechanical vibration

Solution Approach 2:

The vibration is applied in advance to the guide members before sheets contact them, preparing the surfaces to minimize friction from the outset. This preliminary action ensures that each sheet enters the stacking process with optimal conditions for smooth, jam-free movement, enabling reliable high-speed operation.

Inventive Principle:
Principle #10Preliminary action

3Manufacturing precision

If multiple guide members are added for precise alignment, then alignment precision improves, but device complexity increases

Engineering Contradiction:
Improveedge alignmentVSAvoidnumber of components
Core Design Contradiction:
Manufacturing precisionVSDevice complexity

Solution Approach 1:

The patent uses vibration on guide members to achieve precise edge alignment without requiring additional complex positioning mechanisms. The vibration enables sheets to naturally follow the guide member paths more accurately, reducing the need for extra alignment components while maintaining high precision.

Inventive Principle:
Principle #18Mechanical vibration

4Manufacturing precision

If vibration is applied to guide members, then friction is reduced and alignment improves, but energy consumption increases

Engineering Contradiction:
Improvestacking precisionVSAvoidvibration energy
Core Design Contradiction:
Manufacturing precisionVSUse of energy by moving object

Solution Approach 1:

The patent applies vibration only to the guide members (131, 132, 141, 142) rather than to all moving components, minimizing energy consumption. The vibration is localized to where it is most effective (at the sheet-guide interface) and is used continuously at low amplitude, achieving precise stacking with relatively low energy input compared to high-speed intermittent vibration or vibration of larger masses.

Inventive Principle:
Principle #18Mechanical vibration

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 system efficiently and precisely aligns sheets by reducing frictional forces between adjacent sheets, preventing short circuits and ensuring accurate stacking.

Implementation Method 1

The vibrator is configured to apply micro-vibration to at least one of the first guide member and the second guide member

Methodology Applied
Scientific EffectVibration: Vibration

Implementation Method 2

the vibrator is configured to apply micro-vibration to at least one of the first guide member and the second guide member

Methodology Applied
Scientific EffectVibrational friction reduction: Friction

Data Source

PatentUS12617646B2Stacking apparatus, stacking method, and stacking system
Publication Date: 2026.05.05 KK TOSHIBA
  • US12617646B2 patent drawing
  • US12617646B2 patent drawing
  • US12617646B2 patent drawing

AI summary

A stacking apparatus according to an embodiment includes a stacking table, a first guide member, a second guide member, and a vibrator. The stacking table includes a stacking surface on which sheets are sequentially stacked. The first guide member is provided to stand on the stacking table. The first guide member restricts position of edges in a first width direction of the sheets stacked on the stacking table. The second guide member is provided to stand on the stacking table. The second guide member restricts position of edges in a second width direction of the sheets stacked on the stacking table. The second width direction intersects with the first width direction. The vibrator applies micro-vibration to at least one of the first guide member and the second guide member.