BEAMING OF JUTE YARNS

WHAT IS BEAMING?

Two sets of yarns ,namely warp and weft yarns are necessary for making a cloth.Both the yarns needs specific preparation before those are placed in a loom for weaving.

Desired length of warp yarns (from spools/cones)in specified numbers are wound on a beam tube ,this process is known as BEAMING.

OBJECTIVES

To produce a sheet of warp yarns from large no of individual spools /coons according to the no of runners required in cloth.

To coat the warp yarns with size paste to improve weavability of warp yarns.

IMPORTANCES It helps to produce long length of warp

sheet i.e required for weaving. Application of size paste on jute warp

yarns helps to withstand abrasion ,stress-strain developed during weaving,lays down the surface hair of warp yarns,results lower warp breakages.lower wastage ,higher weaving efficiency,better fabric quality etc.

PATH OF THE YARN Creel zone porcelain guide guide rod guide reed nip of starch & squeeze roller guide reed guide roller drying cylinders measuring roller lease rod lease reed tensioning rollers beam.

DRIVE OF THE MACHINE 1.Motor to starch roller Motor motor pulley machine pulley

machine shaft speed change pinion intermediate main shaft wheel bevel pinion bevel wheel side shaft bevel pinion bevel wheel cross shaft starch roller change pinion compound wheel compound pinion starch roller wheel starch roller.

DRIVE TO THE MACHINE

2.Motor to beam Motor motor pulley machine pulley

main shaft spur pinion “A”& “B” compound wheel “A”& “B” spur pinion spur wheel loose & fast plate both side felt cloth sector shaft sector plate sector pin ruffle beam

DRIVE TO THE MACHINE

3.Drive to the keeling motion Measuring roller measuring pinion

measuring wheel bevel bevel bevel shaft thread worm change wheel thread worm clock face hammer stamper

SOME IMPORTANT MACHINE AND PROCESS PARAMETERS

Conventional Jute sizing/beaming machine

- Cylinders(3 or 6) are steam heated for drying of warp yarns.

- Steam pressure in cylinders is 25-35 P.S.I.

-No of cylinders is 3 to 6. -Beaming speed is 20-30 yds/min. Laid length is 100-150 yds.

PRPDUCTION CALCULATION

Production of 11*12-44” FGJP (warp count 10 lb/spy)

Surface speed of strach roller 20yds/min. No of warp yarns 526. Size take up % =2 Efficiency 70% Production/shift/machine Surface speed of beam tube x 60 x 8 x no of ends

x (warp count/14400) x efficiency x size take up % x (1/2.204) in kg.

20 x 60 x 8 x 526 x (10/14400) x (102/100) x (70/100) x (1/2.204) kg

=1136 kg

COMMON SIZING PARAMETERS

1.Viscosity of size 1.Viscosity of size paste(Redwood paste(Redwood second)second)

a.tanka.tank

b.sow boxb.sow box

250-300.250-300.

180-200.180-200.

2.Solid content %2.Solid content % 1.8-2.21.8-2.2

3.Temperature of sow 3.Temperature of sow box(degree centigrade)box(degree centigrade)

60-65.60-65.

MAJOR CHECK POINTS FOR PROCESS CONTROL.

Uniform winding throughout the width of the beam.

Proper drying of warp Proper steam pressure & cylinder surface

temperature. Proper viscosity of the size paste. Proper application & temperature of size

paste. Proper squeezing No of slack ,crossed & missing ends.

WHAT IS PRE –BEAMING? For broad looms where the no of warp

threads in the warp exceeds the normal capacity of the creel bank ,it is necessary to run the yarns in warping machine ,popularly known as pre-beaming machine.

The beam produced in the pre-beaming may contain ½,1/3,1/4 of the total threads required.Such beams are then placed in the frames of the sizing and beaming machine for producing the final sized beam.

WASTES AND THEIR CONTROL There are three types of wastes in

beaming department …. 1.wastage of yarns. Control: Spool.wastage of change after complete

empty of running spools. Increasing content of spools.

WASTES AND THEIR CONTROL 2 wastage of size paste. Control: Paste must not over flow,leak from sow

box. Condition of sow box should be

checked. No leakage in pipe lines from storage

tank to sow box should be checked

WASTES AND THEIR CONTROL 3.Wastage of steam. Control: Proper maintenance of steam pipes and

their joints should be carefully checked. Stopping steam flow when machine is

idle. Maintaining proper steam pressure.

GENERAL JOB OF A BEAM OPERATER 1.To supply good empty beam & mount it

properly on the machine. 2.To unload full beam and placed it on a

cart for caring the same to weaving or for storage.

3.proper threading ,checking of different process parameters.

4.periodically clean the sow box ,cylinders,second guide reed and lubricate properly etc.