Question

Multi head sewing machine is commonly used for

• A. Button hole making
• B. Flat lock the seams
• C. Overlocking seams
• D. Embroidery

Hint:

• A multi-head sewing machine} has multiple sewing/embroidery heads that can operate simultaneously.
• This configuration is very common in commercial embroidery machines} to produce multiple identical embroidered designs at the same time, increasing productivity.
• Each head on a multi-head embroidery machine is a complete embroidery unit.
• Buttonhole, flatlock, and overlock machines are typically single-head specialized machines, though they might be part of automated production lines.

Answer 1

The Correct Option is D

A multi-head sewing machine typically refers to a machine that has multiple sewing heads operating simultaneously or sequentially, often controlled by a computer program. Each head can work on a separate item or a separate section of a larger item. This configuration is most commonly found in embroidery machines.

• Multi-head embroidery machines: These machines have multiple embroidery heads (e.g., 2, 4, 6, 12, 20, or more). Each head can hold multiple needles with different colored threads. All heads work simultaneously on identical designs (or parts of a large design) on separate pieces of fabric or garments held in hoops. This allows for mass production of embroidered items.

Let's consider the other options:

• (a) Button hole making: Buttonhole machines are specialized sewing machines designed to create buttonholes. They typically have one sewing head that performs the complex stitching pattern for a buttonhole. While automated systems might feed multiple garments, the machine itself is usually single-head for the buttonhole operation.
• (b) Flat lock the seams (Flatlock stitch / Coverstitch): Flatlock machines (or coverstitch machines) produce a flat, stretchable seam often used on knitwear (e.g., T-shirt hems, activewear seams). These are specialized machines, usually with one sewing head that has multiple needles and loopers.
• (c) Overlocking seams (Overlock machine / Serger): Overlock machines (sergers) are used to sew seams, trim fabric edges, and prevent fraying, all in one operation. They typically use 2 to 5 threads and have one sewing head.

While some specialized automated workstations might involve multiple sewing units for operations like buttonholing or overlocking in a sequence, the term "multi-head sewing machine" where multiple identical sewing/embroidery units operate in parallel is most characteristic of embroidery machines designed for high-volume production. \[ \boxed{\text{Embroidery}} \]