Curved Guide Plate Aerodynamic Bump Tail End Transfer

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Solution Overview

Problem

Existing fiber web machines face inefficiencies in transferring a tail end from one structural section to another, particularly due to suboptimal airflow speeds and directional control at transfer plates.

Innovation Solution

The solution involves using a curved guide plate with an aerodynamic bump to direct airflow efficiently, allowing the air flow to adhere to the surface and guide the tail end effectively, while also optimizing the shape and angle of the guide plate to enhance airflow control.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If traditional air-assisted web feeding is used, then the system is safe and operationally reliable, but the airflow speed to the transfer plates is insufficient and transfer efficiency is poor

Engineering Contradiction:

Improvetail end transfer efficiencyVSAvoidairflow speed to transfer plates

Core Design Contradiction:

ProductivityVSSpeed

Solution Approach 1:

The patent employs a curved guide plate with an aerodynamic bump instead of a flat surface. The curved geometry is specifically designed to generate an even curtain of air without friction, optimizing airflow speed and distribution to the transfer plates, thereby resolving the contradiction between transfer efficiency and airflow speed.

Inventive Principle:

Principle #14Spheroidality (Curvature)

Solution Approach 2:

The patent optimizes the shape and angle parameters of the guide plate to enhance airflow control. By changing the geometric parameters of the guide plate surface, the system achieves improved airflow speed and distribution, directly addressing the insufficient airflow speed issue while maintaining transfer efficiency.

Inventive Principle:

Principle #35Parameter changes

2Ease of operation

If airflow is directed at the guide plate, then tail end guidance is achieved, but air volume requirements are high and energy consumption increases

Engineering Contradiction:

Improvetail end guidance controlVSAvoidair volume and energy consumption

Core Design Contradiction:

Ease of operationVSUse of energy by moving object

Solution Approach 1:

The curved guide plate surface creates an aerodynamic effect that generates an even curtain of air without friction. This curvature-based design improves tail end guidance control while reducing the overall air volume required, thereby lowering energy consumption compared to traditional flat plate designs.

Inventive Principle:

Principle #14Spheroidality (Curvature)

Solution Approach 2:

The patent utilizes optimized pneumatic airflow directed at the curved guide plate surface. The aerodynamic bump design enhances the pneumatic effect, achieving effective tail end guidance with reduced air volume requirements and lower energy consumption.

Inventive Principle:

Principle #29Pneumatics and hydraulics

3Productivity

If airflow speed is increased to improve transfer efficiency, then productivity increases, but energy consumption and air volume requirements increase

Engineering Contradiction:

Improvetail end transfer efficiencyVSAvoidenergy consumption and air volume

Core Design Contradiction:

ProductivityVSLoss of energy

Solution Approach 1:

The curved guide plate with aerodynamic bump generates an even curtain of air without friction, optimizing airflow speed distribution. This design achieves high transfer efficiency while minimizing energy loss and air volume requirements, resolving the contradiction between productivity and energy consumption.

Inventive Principle:

Principle #14Spheroidality (Curvature)

Solution Approach 2:

By optimizing the shape and angle parameters of the guide plate, the system achieves improved airflow control that enhances transfer efficiency without proportionally increasing energy consumption. The parameter optimization ensures efficient energy utilization while maintaining high productivity.

Inventive Principle:

Principle #35Parameter changes

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 approach enables a more even distribution of airflow force, improving the control and efficiency of tail end threading, reducing air volume requirements, and enhancing energy efficiency.

Implementation Method 1

The solution now utilizes airflow theory more efficiently and at the same time the operation of the apparatus is optimized; the airflow of the blown air can now be directed more accurately at the guide plate. By means of the embodiments of the present disclosure, an even curtain of air can be formed on the guide plate without friction.

Methodology Applied

Scientific EffectCoanda effect: Coanda Effect

Data Source

PatentUS20250051123A1Method for transporting a tail end in a fiber web machine from one structural section to another, and also an apparatus and the use of it

Publication Date: 2025.02.13 RUNTECH SYST

AI summary

An apparatus for transporting a tail end in a fiber web machine from one structural section to another includes nozzles for guiding the tail end on the guide plate by means of an air flow such that the blown air is brought onto a guide plate shaped into a curve in such a way that the air flow of the blown air guides the tail end onto the curved guide plate by means of a bump functioning as an aerodynamic profile formed in the curved guide plate.