Saturday, September 28, 2019



The loom motions which help to weave a fabric continuously are called secondary loom motions. The fabric can be woven without these motions too, but you can't keep the weaving process continue without secondary motions. There are following two secondary motions required to make continuous weaving process. 

Take - up motion:

"The main objectives of the take-up motion are to pull the fabric forward after beating of every inserted pick and to maintain the picks per inch required in the fabric".When the beating is completed, the loom reed starts to change the position, it reaches to back dead centre position and gets remained stationary during picking. The reed again performs beating motion. This cycle gets repeated periodically. The position of the fell of the cloth starts to shift its position toward the reed in the absence of a suitable continuous fabric pulling mechanism. Thus a suitable and continuous fabric pulling mechanism keeps the fell of the cloth position unchanged during continuous weaving. In this way, we can say that " A continuous fabric pulling mechanism which helps to keep the fell of the cloth position unchanged during continuous weaving process is called take - up motion " 

In this kind of mechanism, two objectives are achieved together. One is fabric pulling and the second is cloth winding. 
For fabric pulling, pin roll, Emery roll, sand roll and spike roll are used. One or two pressure rolls are also used to prevent slippage between fabric and emery roll. These pressure rolls are coated with felt cloth or rubber emery. The emery roll rotates with the help of a train of wheels. In today's looms the looms are equipped with motorized take-up motion. There is not any necessity to change the pick wheel. Weaver needs to feed required picks per inch in the loom control system only. 
The cloth is wounded on the cloth roller finally. 

You may also be interested in the following articles:

Let - off motion, secondary loom motion

Take - up motion, a secondary loom motion

Shedding motion, a primary loom motion

Picking motion, a primary loom motion

Beating motion, a primary loom motion

Schematic diagram of loom

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  2. Please upload Looming full process