Composite Sheet Manufacturing Roller Synchronization

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Solution Overview

Problem

Existing composite sheet manufacturing devices face challenges in achieving higher production speeds while maintaining stable quality, particularly due to limitations in the rotation frequency of rollers and resulting relative rotation errors.

Innovation Solution

The device employs rollers with synchronized rotation frequencies and gear pairs to ensure equal outer diameters, allowing for higher rotation speeds without compromising the quality of the composite sheets by maintaining consistent bonding and shaping processes.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If the rotation frequency of the first roller is increased to achieve higher production speed, then productivity is improved, but the quality of the composite sheet becomes unstable due to relative rotation errors between rollers

Engineering Contradiction:
Improveproduction speedVSAvoidquality stability
Core Design Contradiction:
ProductivityVSManufacturing precision

Solution Approach 1:

A gear pair is introduced as an intermediary mechanism between the first roller and the third roller to transmit and synchronize their rotation frequencies. The gear pair ensures that both rollers rotate at the same frequency, eliminating relative rotation errors and maintaining bonding quality even at high production speeds.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The invention changes the rotation frequency parameter of the first roller to a higher value to increase productivity. By simultaneously adjusting the third roller's rotation frequency to match through the gear pair, the system maintains synchronization and prevents quality degradation despite the parameter change.

Inventive Principle:
Principle #35Parameter changes

2Productivity

If the rotation frequency of the first roller is increased, then productivity is improved, but heat generation and vibration increase causing technical issues

Engineering Contradiction:
Improveproduction speedVSAvoidheat generation and vibration
Core Design Contradiction:
ProductivityVSObject-affected harmful factors

Solution Approach 1:

The gear pair acts as a mechanical intermediary that synchronizes the rotation of the first and third rollers. This synchronization prevents relative motion and friction between the rollers and the composite sheet, thereby reducing heat generation and vibration even at high rotation frequencies.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Device complexity

If rollers with different outer diameters are used, then device complexity is reduced, but assembly accuracy deteriorates due to misalignment during bonding

Engineering Contradiction:
Improveroller configurationVSAvoidassembly accuracy
Core Design Contradiction:
Device complexityVSManufacturing precision

Solution Approach 1:

The invention employs rollers with equal outer diameters (first roller and third roller both have 200mm diameter) to ensure homogeneous rotational characteristics and precise alignment during the bonding process. This homogeneity in dimensions maintains assembly accuracy while the gear pair keeps the system manageable.

Inventive Principle:
Principle #33Homogeneity

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 enables the production of composite sheets at higher speeds with stable quality, reducing technical issues like heat generation and vibration, and ensuring consistent assembly accuracy and bonding states.

Implementation Method 1

the third roller is joined to the first roller with a gear pair (30, 34) therebetween so as to rotate at the same rotation frequency as that of the first roller

Methodology Applied
Scientific EffectGear mechanism: Gear

Implementation Method 2

both the superimposed sheets 152 and 154 are bonded to each other when they are passed through the space between the first roller 112 and a third roller 116

Methodology Applied
Scientific EffectThermal fusion:

Data Source

PatentUS11865746B2Composite sheet manufacturing device and manufacturing method
Publication Date: 2024.01.09 ZUIKO CORP
  • US11865746B2 patent drawing
  • US11865746B2 patent drawing
  • US11865746B2 patent drawing

AI summary

In a composite sheet manufacturing device, a second roller having a plurality of first projections and a third roller are disposed so as to be adjacent to a first roller having multiple recessed areas. The outer diameters of the first and third rollers are the same size. The third roller is joined to the first roller with a first gear pair therebetween, so as to rotate at the same rotation frequency as that of the first roller. A first sheet that is fed in between the first roller and the second roller is shaped by being pushed into the recessed areas of the first roller by the first projections of the second roller. A second sheet is then superimposed onto the first sheet and is passed through the space between the first roller and the third roller, and the first and second sheets are thereby bonded to each other.