Fabric sheet loading and unloading machine for a computer controlled pattern forming machine

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Solution Overview

Problem

Existing processes for fabricating patterned composite fabric pieces require significant manpower and result in material loss and imperfections, necessitating a more automated and efficient method for loading and unloading composite fabric sheets in computer-controlled stitching and laser die cutting machines.

Innovation Solution

A loading and unloading machine with a transport platform mounted on a support frame, featuring restraining means to keep the fabric sheet taut and displacement means to move the platform between loading/unloading and stitching/cutting positions, allowing for precise positioning and minimal manual intervention in a computer-controlled stitching and laser cutting machine.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Extent of automation

If manual loading and unloading methods are used, then labor intensity is high, but automation level is low

Engineering Contradiction:
Improveautomation levelVSAvoidlabor intensity
Core Design Contradiction:
Extent of automationVSEase of operation

Solution Approach 1:

The transport platform is equipped with automatic displacement means that enables it to move itself between the loading/unloading position and the stitching/cutting position without requiring manual operation, thereby achieving self-service automation and reducing labor intensity

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The patent replaces manual mechanical loading and unloading operations with an automated displacement system that uses mechanical means (such as conveyors or robotic mechanisms) to automatically position the transport platform, substituting human labor with automated mechanical systems

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

2Manufacturing precision

If traditional fabric processing methods are used, then material loss is high, but manufacturing precision is low

Engineering Contradiction:
Improvepattern piece precisionVSAvoidfabric material loss
Core Design Contradiction:
Manufacturing precisionVSLoss of substance

Solution Approach 1:

The patent employs computer-controlled stitching and laser die cutting systems that use digital programming and optical guidance to precisely follow pattern contours, replacing traditional mechanical cutting methods that require manual handling and result in higher material waste

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The laser die cutting mechanism uses controlled thermal energy parameters to precisely cut fabric along programmed paths, allowing for high-precision pattern piece formation with minimal material loss by exactly following the digital pattern specifications

Inventive Principle:
Principle #35Parameter changes

3Productivity

If continuous automated processing is implemented, then productivity increases, but process complexity increases

Engineering Contradiction:
Improveproduction continuityVSAvoidsystem complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The system is divided into distinct functional modules: the transport platform for sheet handling, the stitching mechanism for seam construction, and the laser die cutting system for pattern formation. Each module operates independently but coordinates through automated control, allowing continuous processing while managing complexity through functional segmentation

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The transport platform enables continuous operation by automatically presenting new fabric sheets to the stitching and cutting mechanisms without interruption, maintaining continuous useful action throughout the production process and maximizing productivity

Inventive Principle:
Principle #20Continuity of useful action

Data Source

PatentUS11821123B2Fabric sheet loading and unloading machine for a computer controlled pattern forming machine
Publication Date: 2023.11.21 REUBEN RONIE
  • US11821123B2 patent drawing
  • US11821123B2 patent drawing
  • US11821123B2 patent drawing

AI summary

A composite fabric sheet loading and unloading machine and its method of operation is described for loading and unloading a composite fabric sheet into a computer controlled stitching and laser cutting machine. The composite fabric sheet is restrained on a rectangular contour support frame of a transport platform which is displaceably and guidingly transported into the stitching and laser cutting machine where programmed pattern fabric pieces are formed in the restrained fabric sheet. The transport platform is then unloaded and transferred back to its original position where the pattern pieces and trimmings are separated and a new composite sheet is positioned and restrained on the flat top surface to repeat the operation. A transport platform is provided on opposed sides of the computer controlled stitching and die cutting machine wherein after the unloading of the transport platform another transport platform is loaded into the stitching and laser cutting machine from the opposed side.