Two Needle Lockstitch Machine.

Double Needle Machine
Fixed Bar	Split Bar

Two Needle Machine Fixed Bar

Computerized double-needle lockstitch Sewing Machine with fixed needle bar.

Motor Type	Direct Drive Servo Motor.
Auto Thread Trimmer	Yes.
Japanese Hook	Yes.
LED Light	Yes.

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Common Uses: Two needle lockstitch machines with fixed needle bar or split needle bar are commonly used in the manufacturing of a variety of garment products, including:

• Shirts: Two needle lockstitch machines are used to sew the front, back, and sleeves of shirts, as well as to attach collars, cuffs, and plackets. 
• Pants: Two needle lockstitch machines are used to sew the inseams, outseams, and waistbands of pants, as well as to attach pockets. 
• Skirts: Two needle lockstitch machines are used to sew the seams of skirts, as well as to attach waistbands and hems. 
• Dresses: Two needle lockstitch machines are used to sew the seams of dresses, as well as to attach sleeves, collars, and hems. 
• Jackets: Two needle lockstitch machines are used to sew the seams of jackets, as well as to attach collars, cuffs, and hems. 
• Outerwear: Two needle lockstitch machines are used to sew the seams of outerwear products, such as windbreakers, rain jackets, and parkas. 
• Bedding: Two needle lockstitch machines are also used in the production of bedding products, such as sheets, pillowcases, and comforters. 

It's worth noting that the specific manufacturing process for each of these garment products will vary depending on the design and construction of the product. The use of two needle lockstitch machines with fixed or split needle bars is just one example of the many machines and techniques that can be used in the production of these products. 

Components: A two-needle lockstitch machine with a fixed needle bar is a type of sewing machine that uses two needles to create a stitch by interlocking threads from the top and bottom of the fabric. The fixed needle bar refers to the design of the machine, where the needle bar, which holds the needle, is fixed in place and does not move. 

The working mechanism of a two-needle lockstitch machine with a fixed needle bar consists of the following main components: 

• Needles: Two needles are used to create the stitch. The needle on the left side is responsible for creating the bottom thread, while the needle on the right side creates the top thread. 
• Needle bar: The needle bar holds the two needles and is fixed in place. 
• Thread take-up lever: The thread take-up lever is responsible for controlling the tension of the top thread. 
• Feed dog: The feed dog is a mechanism that pushes the fabric through the machine and is responsible for controlling the movement of the fabric. 
• Hook race: The hook race is the mechanism that catches the bottom thread and interlocks it with the top thread. 
• Bobbin case: The bobbin case holds the bottom thread and provides tension to keep it in place. 
• Foot pedal: The foot pedal is used to control the speed of the machine. When the pedal is pressed, the machine starts sewing. 

A two-needle lockstitch machine with a split needle bar is similar to the fixed needle bar machine, but with a key difference. In the split needle bar design, the needle bar is split into two parts, with one part holding the left needle and the other part holding the right needle. This design allows for the needles to move independently, which can be useful in certain sewing applications. 

In conclusion, the two-needle lockstitch machine with a fixed needle bar or split needle bar is a versatile sewing machine that is commonly used in the garment and upholstery industries. The main difference between the two designs is the way the needle bar is constructed, with the fixed needle bar having a single bar and the split needle bar having two separate parts. 

Problems and Solutions: Two-needle lockstitch machines with fixed or split needle bars are widely used in the garment and upholstery industries, but like all mechanical machines, they can experience technical problems. Here are some common technical problems and solutions for two-needle lockstitch machines: 

• Skipped stitches: Skipped stitches can occur when the needle is not properly positioned or the thread tension is too tight or too loose. Solution: Check the needle position and adjust the thread tension accordingly. 
• Breaking needles: Breaking needles can occur when the needle hits a hard object in the fabric or when the needle is too dull. Solution: Inspect the fabric for hard objects and replace dull needles. 
• Thread tangling: Thread tangling can occur when the thread is not properly threaded through the machine. Solution: Check the threading and adjust as necessary. 
• Fabric not feeding properly: Fabric not feeding properly can occur when the feed dog is not functioning correctly or the pressure foot is not pressing down enough. Solution: Check the feed dog and pressure foot and adjust as necessary. 
• Bobbin not winding properly: Bobbin not winding properly can occur when the bobbin case is not properly positioned or the thread tension is too tight. Solution: Check the bobbin case and adjust the thread tension accordingly. 
• Needle bar not moving properly: Needle bar not moving properly can occur when there is a problem with the drive mechanism or the needle bar is dirty or damaged. Solution: Clean and inspect the needle bar and drive mechanism and repair or replace as necessary. 

In conclusion, the two-needle lockstitch machine with a fixed needle bar or split needle bar can experience technical problems, but these problems can often be resolved by simple maintenance and adjustment. If the problem persists, it is recommended to seek the help of a professional technician.

Two Needle Machine Split Bar

Computerized double-needle lockstitch Sewing Machine with split needle bar.

Motor Type	Direct Drive Servo Motor.
Auto Thread Trimmer	Yes.
Japanese Hook	Yes.
LED Light	Yes.

Auto Two-Needle Lockstitch Machine With Fixed Bar.

Video Courtesy: Zoje

Auto Two-Needle Lockstitch Machine With Split Bar.

Video Courtesy: Zusun

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