Embroidery Data Generation for 3D Patterns via Unit Pattern Segmentation
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Solution Overview
Problem
Existing embroidery machines that create three-dimensional embroidery patterns require complex structures and motor control systems, making them difficult to manage and operate.
Innovation Solution
An embroidery data generating device that uses a processor and memory to create embroidery data for sewing machines, allowing for the generation of three-dimensional patterns without complicating the machine's structure or motor control, by arranging unit patterns with special stitches to create raised portions on the fabric.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If two X axis feed motors are used to feed two embroidery frames to create three-dimensional embroidery patterns, then the embroidery pattern has a three-dimensional feel, but the structure and control of the sewing machine becomes complex
Solution Approach 1:
The embroidery pattern is divided into multiple unit patterns that are arranged in a specific sequence. Each unit pattern creates a localized three-dimensional effect through special stitches, and the combination of these segmented unit patterns forms the overall three-dimensional embroidery pattern. This segmentation allows the use of a single embroidery frame instead of two, simplifying the machine structure.
Solution Approach 2:
The processor pre-calculates and determines the optimal arrangement of unit patterns before embroidery execution. The unit patterns are arranged in advance to create the desired three-dimensional effect when sewn sequentially. This preliminary arrangement eliminates the need for real-time complex motor control that would be required if two frames were used, thereby simplifying the control system.
2Shape
If unit patterns with special stitches are arranged in plurality to create three-dimensional patterns, then the decorative effect is enhanced, but the embroidery data generation process becomes more complex
Solution Approach 1:
The processor automatically generates the arrangement of unit patterns and the corresponding embroidery data without requiring manual intervention. The system self-services by taking the basic embroidery pattern and automatically determining the unit pattern arrangement, stitch types, and sewing sequence to create the three-dimensional effect. This automation simplifies the overall process despite the complexity of the generated data.
Solution Approach 2:
The processor creates multiple copies of the unit pattern data and arranges them according to the predetermined pattern. Instead of creating entirely new complex stitch data for each three-dimensional element, the system copies and positions standardized unit pattern data, which simplifies the data generation process while still achieving the desired three-dimensional decorative effect.
Data Source
AI summary
An embroidery data generating device includes a first storage device, a processor, and memory. The first storage device stores a plurality of stitch data used to sew a unit pattern that includes special stitches causing the sewing workpiece to be locally puckered. The memory is configured to store computer-readable instructions. The computer-readable instructions cause the processor to perform processes that include acquiring an area in which the unit pattern is to be arranged, first identifying a selected unit pattern from among a plurality of the unit patterns, based on the plurality of stitch data stored in the first storage device, arranging the identified unit pattern in the acquired area, and generating embroidery data used to sew, on the sewing workpiece held by an embroidery frame, the unit pattern arranged in the plurality in the area, using the sewing machine, based on the stitch data of the identified unit pattern.