Sewing M/C Helical Gear With Cylindric For Zigzag Sewing Machine

In a zigzag sewing machine, the cylindrical gear, also known as a spur gear or straight-cut gear, plays a crucial role in power transmission and stitch formation. Here are some common roles of the cylindrical gear in a zigzag sewing machine:

1. Power Transmission: The cylindrical gear is responsible for transferring power from the sewing machine's motor to various components within the machine. It helps transmit rotational motion from the motor to drive the main shaft, which, in turn, drives the needle bar, feed mechanism, and other moving parts.
2. Stitch Formation: The cylindrical gear is directly involved in the formation of different stitch patterns, including the zigzag stitch. As the gear rotates, it controls the lateral movement of the needle bar, causing it to move from side to side and create the desired zigzag stitch pattern. The gear's teeth are designed to engage with other components, such as cams or linkages, to regulate the needle bar's movement accurately.
3. Speed Control: The cylindrical gear can also play a role in controlling the sewing machine's speed. By adjusting the gear ratio between the motor and the main shaft, the speed at which the needle bar moves can be controlled, allowing for different sewing speeds and stitch lengths.
4. Synchronization: In a zigzag sewing machine, multiple cylindrical gears may be used to synchronize the movement of different components. These gears work together to ensure that the needle bar, feed mechanism, and other parts operate in harmony, resulting in accurate and consistent stitching.
5. Torque Conversion: Cylindrical gears can convert torque between different rotating components in the sewing machine. By changing the gear ratio, the cylindrical gear can either increase or decrease the torque applied to the needle bar and other moving parts, helping to regulate the power output and ensure smooth operation.

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A zigzag sewing machine is a type of sewing machine that is specifically designed to create zigzag stitches. Unlike a straight stitch sewing machine that only produces straight stitches, a zigzag sewing machine allows for a variety of decorative and functional stitches, including zigzag stitches, satin stitches, and more.

Here are some key features and capabilities of a typical zigzag sewing machine:

1. Stitch Selection: A zigzag sewing machine offers a range of stitch options, including different widths and lengths of zigzag stitches. It may also have built-in stitch patterns such as scallop, satin, or decorative stitches. These options allow for versatility in sewing projects and creative stitching.
2. Stitch Width Adjustment: One of the essential features of a zigzag sewing machine is the ability to adjust the width of the zigzag stitch. This adjustment determines how wide the stitch pattern will be, accommodating different sewing needs and fabric types.
3. Stitch Length Adjustment: Along with stitch width, a zigzag sewing machine typically allows for adjustment of stitch length. This feature controls the distance between individual stitches and is useful for achieving various stitch densities, from close together for strong seams to further apart for decorative effects.
4. Feed Dogs: Zigzag sewing machines have feed dogs, which are the toothed mechanism that moves the fabric under the needle as you sew. The feed dogs can be adjusted to accommodate different fabric thicknesses and prevent fabric slippage during stitching.
5. Needle Positions: Zigzag sewing machines often provide multiple needle positions. This allows you to adjust the needle's lateral placement, enabling precise stitching along edges, adding decorative effects, or aligning stitches with specific markings or guides.
6. Buttonhole Function: Many zigzag sewing machines come with a built-in buttonhole function. This feature automates the process of sewing buttonholes, making it easier and more consistent.
7. Free-Arm Capability: Some zigzag sewing machines have a removable accessory called a free arm. This feature allows you to sew small, cylindrical, or hard-to-reach areas, such as cuffs, collars, and hems.

Zigzag sewing machines are widely used in various sewing applications, including garment construction, home decor projects, and crafting. They offer greater versatility compared to straight stitch machines, enabling users to create a wide range of decorative stitches and stitch patterns.

Our company was formerly known as Changsha Double Star Gear Industrial Co., Ltd, which was established in 1994. It is a directly affiliated university-run enterprise founded by Central South University Professor Zeng Tao, the leading expert on spiral bevel gears in China. It was later renamed as Changsha Senjie Gear Co., Ltd (abbreviated as "CSG") in 2016. CSG is a production R&D base specializing in professional design, reserch, manufacture and sales of high-quality small module spiral bevel gears and high reduction hypoid gears and cylindrical gears. In 2023, Hunan Dinghan New Material Technology Co., Ltd. was established as a specialized international export business department. CSG has strong scientific research and development capabilities and is also equipped a full set of advanced equipment including seven-axis five-linkage CNC spiral bevel gear grinding machines and gear milling machines. By making the best use of the scientific and technological achievements and equipment of the Gear Research Institute of Central South University, machanical processing, heat treatment and testing. We have developed high-quality products featuring high reduction, high speed, heavy load, low noise and less teeth for users.

With the quality policy of "scientific and technological innovation, quality first, being first-class firm and customer‘s satisfaction", we have won the trust of well-known domestic and abroad enterprises with stable and excellent quality. It is committed to be a pioneer of the industry of China's small-module spiral bevel gears, and is dedicated to providing service for any related industry requiring industrial robots, CNC turning and milling compound power tool turrets, industrial sewing machines, reducers, bicycles, power tools and aeromodelling. We sincerely look forward to your cooperation!