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Warp Knitting Machine

TD-D7 Digital High Speed Double Needle Bar Raschel Machine

main feature :

TONGDA digital high-speed double needle bar raschel machines offer efficient and stable weaving performance, ideal for producing complex patterns and high-quality knitted fabrics.

 flat knitting machine
warp knitting machine
warp knitting equipment
 warp knitted fabric
textile weaving equipment

Product details

CHARACTERISTIC

The mechanism is driven by a complete set of eccentric mechanisms or crankshaft connecting rod mechanisms, with faster speed; The needle slot plate is fixed, the fabric is tight, and an unloading device for holding the settling plate bed is added. When replacing the tongue needle, the settling plate bed can be swung away from the working area for easy operation.

The combination of electronic let-off and laser yarn breaking automatic stop device ensures the high-speed operation and convenient operation of the machine. And the number of comb bars of the machine has reached 7, and it can be equipped with electronic jacquard card, electronic pattern shifting, etc., making the fabric of the machine more able to meet the needs of customers.

APPLICATION 

After finishing and processing, the fabric can form short pile fabrics with a pile height of 1.5-6mm, sandwich mesh fabrics with a spacing of 3-12mm, and the wool yarn is not easy to fall off from the bottom cloth due to looping. It is widely used in car seat cushion, sand release, Simmons Bedding Company, cotton blanket, curtain and other household decorative fabrics, as well as clothing fabrics and footwear materials.

  • Strong Stability

    Strong Stability

    Due to the fixed needle plate, the fabric is held tightly and stably, which helps maintain the long-term stable operation of the machine and reduces the failure rate.

  • Easy Operation & Maintenance

    Easy Operation & Maintenance

    The swingable design of the shaping plate bed facilitates the replacement of needle tongues, simplifying the operation and maintenance process and improving work efficiency.

  • High Degree of Automation

    High Degree of Automation

    Combined with electronic weft insertion and laser yarn break automatic stop system, the machine boasts a higher level of automation, ensuring safety and production continuity during high-speed operation.

Main technical parameters

Needle type

Latch needle

Gauge

E18 E22 E24

Working width

100 inches,138 inches 

Guide Bar No.

7

Double pile height

2-12mm

Main drive

Oil-immersed cam,Eccentric linkage 

Max speed

800 rpm

 

Pattern drive横移机构

N-pattern drive,chain link or pattern disk(Optional: Electronic Control) 

Yarn let-off device

EBC Electronic yarn let-off EBC

Fabric take-up

Electronic take-up

Batching device

Independent batching device

Main motor power

7.5 kw



FAQ

Q1: What fabrics can the TD-D7 Raschel machine produce?

A1: The TD-D7 can produce short-pile textiles, sandwich mesh and 3D spacer fabrics. Typical uses include automotive seat material, mattress mesh, sofa upholstery, curtain fabric, shoe material and apparel components.

Q2: What is the difference between the TD-D7 and a Jacquard Raschel machine?

A2: The TD-D7 focuses on a seven-guide-bar arrangement for multi-bar fabric construction. A Jacquard Raschel machine uses individual Jacquard control for detailed mesh effects and patterned spacer surfaces. The suitable model depends on the fabric sample and pattern requirements.

Q3: What information is needed for a TD-D7 machine proposal?

A3: Please provide the fabric application, yarn material, yarn count, machine gauge, fabric width, fabric weight, pile height or spacer distance, lapping plan and planned daily output. Local voltage, frequency, ambient temperature and factory dimensions should also be provided.


Product Advantages
  1. 1.Seven-Guide-Bar Arrangement

The TD-D7 uses seven guide bars for multi-bar fabric structures. Separate yarn paths can be arranged for ground, pile and connecting yarns according to the required fabric construction.

  1. 2.Two Fabric Application Ranges

The machine can produce short-pile textiles as well as sandwich mesh and 3D spacer fabrics. Published application data lists finished short-pile heights of 1.5 to 6 mm and spacer distances of 3 to 12 mm.

  1. 3.Electronic Yarn and Fabric Control

EBC electronic warp let-off manages yarn delivery during knitting. Electronic fabric take-up controls fabric movement and can be set according to stitch structure and fabric requirements.

  1. 4.Several Pattern Motion Methods

N-pattern drive, chain links and pattern discs can be used for different lapping plans. Electronic pattern control can also be included when required by the fabric design.

  1. 5.Oil-Immersed Main Motion

The main motion uses an oil-immersed cam and eccentric linkage. The published machine data lists a rated speed of 850 rpm, while the working speed depends on yarn, gauge and fabric construction.


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