Fabric Washing Machine With Motorized External Roll Coupling

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Solution Overview

Problem

Existing discontinuous and semi-continuous fabric washing machines face inefficiencies in loading and unloading processes, requiring manual intervention and taking up significant time, especially when transferring fabric between roll-holders and machine modules.

Innovation Solution

A motorized connection arm connects to the shaft of an external roll-holder, allowing it to act as a motorized shaft for the first collection and supply module, eliminating the need for fixed motors and simplifying loading and unloading by using a movable roll-holder.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If fabric is transferred from external roll-holder to machine module, then fabric supply is enabled, but loading and unloading time increases and manual intervention is required

Engineering Contradiction:
Improveloading and unloading operationVSAvoidloading and unloading time
Core Design Contradiction:
Ease of operationVSLoss of time

Solution Approach 1:

The external roll-holder is merged with the machine module by directly coupling the fabric roll to the drive system. The roll-holder becomes an integral part of the fabric supply mechanism, eliminating separate transfer operations between external storage and processing modules.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The fabric roll in the external roll-holder serves itself by being directly driven by the machine's drive system. The roll automatically feeds fabric through the washing module without requiring manual unwinding or transfer to intermediate collection rolls, as the system directly actuates the roll shaft.

Inventive Principle:
Principle #25Self-service

2Extent of automation

If fixed motorized shaft is used in first module, then fabric winding is automated, but device complexity increases

Engineering Contradiction:
Improvefabric winding automationVSAvoidmachine structure complexity
Core Design Contradiction:
Extent of automationVSDevice complexity

Solution Approach 1:

The drive system is designed to perform multiple functions: it can directly drive the fabric roll in the external roll-holder, wind fabric onto collection rolls, and potentially perform other fabric handling operations. This universal drive mechanism reduces the need for separate motorized shafts for each function.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The system transitions from static fixed motorized shafts to a dynamic drive system that can adaptively connect to different fabric rolls and components. The drive mechanism can dynamically engage with the external roll-holder or internal collection rolls depending on the operational phase, reducing overall system complexity.

Inventive Principle:
Principle #15Dynamics

Data Source

PatentEP4293156B1Machine for washing of fabrics
Publication Date: 2025.10.29 FARRE ESCALE GERARD
  • EP4293156B1 patent drawingFigure 1
  • EP4293156B1 patent drawingFigure 2
  • EP4293156B1 patent drawingFigure 3

AI summary

Machine for washing of fabrics which comprises: a first module (15) for collection and supply of fabric; a second, washing module (200) which comprises at least one first vat (210) for accommodation of a bath for treatment of the fabric; a third module (300), for collection and supply of fabric, and means for driving and guiding of the fabric (250) which are configured such that the fabric advances from the first module to the third module, passing via the second washing module, and vice versa, characterized in that the first module for collection and supply of fabric comprises a motor (312) and a connection arm (413) which can actuate the shaft of a roll of an external roll-holder (400), such that, when the roll of the external roll-holder is actuated by the said motor, this roll supplies the second washing module without the intermediary of rolls for collection of fabric.