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- Rubber Core Euqipment : In falt elastic braiding manufacturing industry 7 to 105 spindle braiding machines are used. Rubber core equipments are absolutely necessary to effect inter braiding yarns on the rubber thread. Rubber thread are uniformally stretched to each elastic limit, while being braided and return to normal length on leaving the machine. No of spindles required depends on 2 time the number of the rubber thread plus one. For exampal if 8 number of rubber threads are used then number of spindles required in the braiding machine will be. (2x8=16+1)=17 spindles. (refer the drawings)
For manufacturing elastic cord one or several lines of rubber core is introduced through the centre of top plate.
- ZIG ZAG ATTACHMENT : This attachment is necessary to get zip zag design. This is effected by imparting different tensions on each yarn.
NOTE : This method of operation confines up to 33 spindles.
As earlier mentioned , different tension is given on each yarn by means of different monme. To get special wavy look, a special instrument called "SELVEDGE BAR" is to be used in such a way that heaviest monme is placed at centre and gradually lighter ones are contrasted one by one to its both sides.
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SETTING.
- please refer drawing 2 selvedge are fixed at the top of selvedge post the screw is adjusted in touching condition between former (see the fig) and the end of the needle, then attach former thereafter all weight must be put on each spindle one by one according to the following order the machine being driven at crank.
- Depending of the yarn thickness,number of ply shape of zig zag etc arrangement of tension has to be designed.
EXAMPAL of 17 spindle machine is given below.
MONEY WEIGHT ARRENGEMENT(1MONEY =4 GRAMS)
(fig.33)2,2,2,4,4,5,6,7,8,7,6,5,4,4,2,2,2,
OR
5,5,5,5,8,10,8,10,12,8,10,8,5,5,5,5
(fig.34)2,N,3,N,4,5,6,7,8,7,6,5,4,N,3,N,2
"N`` indicates coloured yarn.
(fig.35)3,3,3,N,N,N,10,10,10,10,10,N,N,N,3,3,3
OR
3,3,4,4,5,5,12,12,12,12,12,12,N,N,N,N,N,N
from the above arrangement it can be understood the lighter monme (wt) forms zig zag the heavier gives the straight part zig zag part appearing on the surface.
- CHANGING OF GEAR : when using finer yarn or making steepe shape, ratio of gear must be high and ratio of gear should be low when using thicker yarn or gentle zig zag. Please take note that the speed of the machine shall be lower say 130to140 RPM which is desirable.
- FORMER & SELVEDGE BARS : shape of the zig zag depending on the proper adjustment especially flxing point of the former . one sided inclintion of the point tends zig zag go out of shape. It is necessary therefore to adjust the bending point of both sides by changing the roundness. To get remarkable zig zag effect on the falt braid apply 2 bars arranging each side of the zig zag .
The steep zig zag are produced only by arranging
- tension weights (monme)
- former
- change gear
- application of bars.
DECORATIVE TAPES HAVING THE SHAPE OF "BUTTER FLY WING" CAN BE MADE BY USING OUR " BUTTERFLY EQUIMENT`".
To produce "BUTTERFLY WING" effect, our braiding machine will have shotr spindle and long spindles. The " THE BUTTERFLY EQUIPMENT" has a needle and steel ball. The ball is placed on a post and the ball is held by a ring wire which is attached to a post. The long spindle drawssss the yarn partly, wounding on the needle shaped by steel ball . the short spindle ,in the meantime shaping an ordinary line of braid.
Long spindle is adjustable to give desired shape of the butter fly wing.
Ring wire should be neither loose nor tight but should be arranged in such a way that the ball dose not slip down .
The size of the wings depends upon the thickness of needle at its braiding point. For bigger wings use bigger needle and so also for smaller wings adjusting the ending points suitably.
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