Integrated Sewing and Cutting Fabric Processing Unit
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Solution Overview
Problem
The existing fabric processing installations require multiple operators and increased processing times due to the need to transport semi-finished tubular fabric lengths between separate sewing and cutting units, involving storage and transfer steps.
Innovation Solution
An integrated fabric processing installation where the sewing and cutting units are connected, allowing for continuous operation with a single operator, featuring conveyor belts, pulling rollers, and a chute to transfer the fabric seamlessly from sewing to cutting, eliminating the need for intermediate storage and transfer.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If separate sewing and cutting units are used, then each unit can be operated independently, but the number of operators required increases and processing time lengthens due to transport and storage steps
Solution Approach 1:
The patent combines the sewing unit and cutting unit into a single integrated machine, allowing both operations to be performed sequentially on the same equipment without intermediate handling. The cutting unit is mounted on the sewing machine bed and operates on the fabric immediately after sewing, eliminating the need for separate transport and storage steps between operations.
2Ease of operation
If separate sewing and cutting units are used, then each unit can function independently, but the number of operators required increases to at least three
Solution Approach 1:
The patent merges the sewing and cutting operations into a single integrated machine that can be operated by one person. The operator performs both sewing and cutting tasks at the same workstation, eliminating the need for multiple operators to handle separate machines and coordinate fabric transfer between them.
Solution Approach 2:
The integrated machine performs both sewing and cutting operations automatically in sequence without requiring manual intervention for fabric transfer. The machine itself handles the fabric from one operation to the next, reducing the need for human operators to physically move and position the material between operations.
3Adaptability or versatility
If semi-finished fabric is transported between separate units, then flexibility in operation is maintained, but intermediate storage and transfer time are required
Solution Approach 1:
The patent enables continuous operation by performing cutting immediately after sewing on the same machine without interrupting the workflow. The fabric moves directly from the sewing needle to the cutting blade through the machine's inherent fabric path, maintaining continuous motion and eliminating idle time associated with transport and storage between separate units.
Data Source
Figure 1
Figure 2
AI summary
An installation for the processing of fabrics comprises a sewing unit (2) for stitching together in series a succession of tubular pieces of fabric; a unit (3) for cutting lengthways said succession of tubular pieces; the cutting unit (3) being connected to the sewing unit (2); a chute (21) located between an outfeed section (2b) of the sewing unit (2) and an infeed section (3a) of the cutting unit (3).