The braided yarn forms a closed braid and is deposited on the mandrel. A “Preform” is generated. In addition, Braiding yarn supplies(carriers) has a patent on.

Overbraiding as a technique to produce structural preforms with braiding technique. With the overbraiding technique the continuous fibers are placed directly onto a pre-shaped core to take shape of the core. This is one of the reasons why the overbraiding technique has a low waste rate of 5 to 10%.

The braiding angles can be programmed between 15 and 80 degrees depending on the shape of the core, the number of braiding carriers and the width of the yarn. This gives a high degree of freedom in designing your component in an optimal matter and gives the opportunity for an extra weight reduction.
The core shape can be linear, curved or eccentric. After the overbraiding process the preform is braided into nett shape and can directly be used for the injection technique

The machine consists of a circular bed, an axial guiding tube, a large braider carrier together with formation, mandrel, and take-up units. The braider carrier moves around the axial fiber tubes according to a predetermined path to make ±bias orientation around the axial yarn. Thick structures can be produced by over-braiding on the mandrel. Complex structural parts can be made by cutting/stitching the fabrics

Overbraiding technology

Two groups of bobbins moving on concentric circles in opposite rotation direction

Intermediate intertwining of the yarns

Tubular braid is laid down on shaped mandrel

Mandrel is moved through braiding eye

Specification

Equipment type : TFB 128

Dimension(mm) : 3240(W) x 2100(L) x 3220(H)

Braiding Carrier : Horizontal Type

Axial Yarn : 64EA

Bobbin Dimension : 55mm x 178mm / 350ccm

Braiding Motor : 6KW

Driving Gear : 64EA

Speed(Horn gear r.p.m.) : max.120rpm

Axial Yarn Creel : Inner Frame Attachment

Mandrel : max. Φ350 x 1500mm

Overbraiding Stroke : max.1500mm

Overbraiding motor : Servomotor, 5Kw

Overbraiding Speed : max.1000mm

Overbraiding Pattern : max.10 Pattern

Sleeve Winder : 3 st Rubber coated roller & motor

Option : Bobbin winder 1set, Dust collector 1set, Bobbin spare - 128ea, Carrier spare - 2ea