Embroidery Data Processing Contour Stitch Density

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Conventional methods for forming three-dimensional embroidery struggle with easily removing an elastic sheet after sewing, especially when needle drop points are far apart on the contour line, requiring skilled techniques and significant time and labor.

Innovation Solution

An embroidery data processing device and computer program that automatically compiles stitch data to bring needle drop points closer together on the contour line, facilitating the easy removal of the elastic sheet by adding specific stitches to the embroidery data.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If needle drop points are disposed far apart on the contour line, then the embroidery pattern can be formed with fewer stitches, but the elastic sheet cannot be easily removed after sewing

Engineering Contradiction:
Improvesewing efficiencyVSAvoidelastic sheet removal
Core Design Contradiction:
ProductivityVSEase of operation

Solution Approach 1:

The patent divides the embroidery pattern into multiple regions with different needle drop point densities. Specific segments along the contour line are identified where additional needle drop points should be added to enable elastic sheet removal, while other segments maintain fewer stitches for efficiency. This segmentation allows different parts of the pattern to serve different functions.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent applies different stitching densities to different locations along the contour line. Rather than uniformly spacing needle drop points throughout the entire pattern, the system identifies specific local regions where needle drop points should be concentrated to facilitate elastic sheet removal, while maintaining wider spacing in regions where this is not necessary.

Inventive Principle:
Principle #3Local quality

2Ease of operation

If needle drop points are added closely to the contour line to facilitate elastic sheet removal, then the elastic sheet can be easily removed, but manual data input is required and much time and labor will be required

Engineering Contradiction:
Improveelastic sheet removalVSAvoiddata compilation time
Core Design Contradiction:
Ease of operationVSLoss of time

Solution Approach 1:

The patent implements an automatic processing system that analyzes the embroidery pattern data and self-determines where additional needle drop points should be added along the contour line. The system automatically generates the modified embroidery data without requiring manual intervention, thereby eliminating the time and labor associated with skilled manual data input while still achieving the goal of facilitating elastic sheet removal.

Inventive Principle:
Principle #25Self-service

3Productivity

If conventional embroidery data is used without automatic processing, then the embroidery pattern can be sewn, but the elastic sheet removal becomes complicated requiring scissors or cutter

Engineering Contradiction:
Improvesewing completionVSAvoidelastic sheet removal process
Core Design Contradiction:
ProductivityVSEase of manufacture

Solution Approach 1:

The patent performs preliminary processing of the embroidery data before sewing to pre-determine and pre-position needle drop points that will facilitate elastic sheet removal. By analyzing the pattern in advance and automatically adding necessary needle drop points along the contour line, the system prepares the embroidery data in such a way that the elastic sheet can be easily removed by tearing along the stitched contour without requiring additional cutting tools or complex removal procedures.

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentUS7515985B2Embroidery data processing device and computer program product
Publication Date: 2009.04.07 BROTHER KOGYO KK
  • US7515985B2 patent drawing
  • US7515985B2 patent drawing
  • US7515985B2 patent drawing

AI summary

The disclosure presents an embroidery data processing device and a computer program product capable of tearing off an elastic sheet easily after an item of embroidery has been sewn, thus enhancing working efficiency. A CPU extracts a contour line from needle drop points PN (N=1, 2, . . . , n) stored in embroidery data (S1 to S3). When the CPU judges that each needle drop point QN on the contour line is separated from an adjacent needle drop point Q (N+1) by more than a specified distance, the CPU forms needle drop points between adjacent needle drop points QN and, Q (N+1) separated from each other by more than a specified distance, reads out from a ROM tearing stitch data for forming a stitch of satin stitching different in stitch width in an inside direction of an embroidery region, and adds the tearing stitch data to the embroidery data so that a sewing sequence of stitches of satin stitching is ahead of a sewing sequence of stitches of the embroidery pattern main body in the embroidery region (Yes at S4 to S6).