Sewing M/C Screw Gear Staggered Axial Oblique For Extra-Thick Lockstitch And Zigzag Sewing Mahcine

In a zigzag sewing machine, gears play a vital role in controlling the movement of the needle and the fabric to create the zigzag stitch pattern. An extra-thick zigzag sewing machine, similar to an extra-thick lockstitch machine, is designed to handle thick and heavy fabrics or materials. Here are some general considerations related to gears in these machines:

1. Zigzag Cam Gear: Zigzag sewing machines have a cam mechanism that controls the movement of the needle and the fabric to create the zigzag stitch. The zigzag cam gear is responsible for driving the cam, which determines the width and length of the zigzag stitch. This gear engages with the cam to translate its rotational motion into the desired needle movement.
2. Needle Bar Gear: The needle bar gear connects to the needle bar and controls the up and down movement of the needle. It synchronizes with other gears and mechanisms to ensure proper timing and coordination between the needle and the fabric.
3. Heavy-Duty Gears: Extra-thick zigzag sewing machines typically feature heavy-duty gears that are designed to withstand the higher stresses and forces associated with sewing through thick materials. These gears are often made from durable materials like metal or hardened steel.
4. Zigzag Mechanism Gears: In a zigzag sewing machine, gears are responsible for controlling the movement of the needle and the fabric to create the zigzag stitch pattern. The gears involved in the zigzag mechanism may be designed to handle the additional strain caused by sewing through thick fabrics.
5. Feed Dog Gear: The feed dog gear, as mentioned earlier, is responsible for moving the fabric through the machine during stitching. In an extra-thick zigzag machine, the feed dog gear may be designed to provide stronger and more reliable feeding to accommodate the thickness of the materials.
6. Presser Foot Lifter Gear: Similar to the lockstitch machine, the presser foot lifter gear on an extra-thick zigzag machine may have a larger size or increased strength to handle the heavier presser foot and the added pressure required for thicker fabrics.

An extra thick lockstitch and zigzag sewing machine is a specialized sewing machine designed to handle thick or heavy materials while offering both lockstitch and zigzag stitching capabilities. These machines are commonly used in industries such as upholstery, leatherwork, automotive, and other heavy-duty sewing applications. Here are some key features and characteristics of such a machine:

1. Heavy-Duty Construction: Extra thick sewing machines are built with a sturdy and robust construction to handle the demands of sewing thick or heavy materials. They often feature reinforced frames, powerful motors, and durable components to ensure stability and longevity.
2. High Presser Foot Lift: These machines typically offer a high presser foot lift to accommodate the thickness of the materials being sewn. The increased lift allows for easy insertion and maneuvering of bulky fabrics or multiple layers.
3. Adjustable Presser Foot Pressure: Extra thick sewing machines often provide the ability to adjust the presser foot pressure. This feature allows for precise control over the fabric feeding process, ensuring even stitching on different thicknesses of materials.
4. Large Stitch Length: These machines usually offer a larger stitch length range compared to standard sewing machines. The extended stitch length allows for better visibility and easier handling of thick materials.
5. Zigzag Stitch Capability: In addition to lockstitch functionality, extra thick sewing machines typically have the ability to produce zigzag stitches. The zigzag stitch provides additional flexibility and decorative options for sewing projects.
6. Thread Tension Adjustment: These machines allow for thread tension adjustment to accommodate different thread thicknesses and fabric types. Proper tension control ensures balanced and secure stitching.
7. Specialized Needles and Thread: Extra thick sewing machines often require specialized needles and threads designed for heavy-duty applications. These needles and threads are stronger and more durable to handle thick layers of fabric or materials like leather or canvas.
8. Multiple Feed Dogs: Some extra thick sewing machines may feature multiple feed dogs or a walking foot mechanism. This aids in the smooth feeding of thick materials and prevents fabric slippage during sewing.