spreading ppt
TRANSCRIPT
![Page 1: Spreading ppt](https://reader034.vdocuments.us/reader034/viewer/2022050702/547804b3b4af9f5c388b459d/html5/thumbnails/1.jpg)
Spreading machineSpreading machineSpreading machineSpreading machine
Cutting roomCutting room
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Spreading equipment• Spreading table • spreading machine• Shears• Weight bars
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Spreading table• Made of wood or sections of
masonite• Surface should be level and smooth• Telescopic metal table legs to
compensate uneven flooring• Popular widths are 48”and 72”• Vertical tilt tables are obsolete
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Spreading machine• Stationary spreaders1. Portable 2. Fixed• Traveling spreaders1. Manual2. Semi – automatic 3. Automatic
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Basic fixed size manual spreading machine
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Manual: Width size adjustable & manual edge
control
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Manual turn-table spreading machine
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Manual - Face-up-one-way spreading, Infra-red edge
control ,Permanent and moveable End Catcher
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Stationary spreader• Remain in one position on the
table during spreading process• Obsolete• Consist of two upright supporting
rod which hold bolt of fabric.
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Features• Time consuming method• Require operator at each side of table• Fabric secured by weight or clamps• Fabric cut by shears or end cutter• For cutting checks ,stripes etc,.• Fabric may be spiked on to a series of
sharp spikes set vertically on the spreading table.
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Automatic spreading machine
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Automatic - Can travel from table to table for continuous spreading
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Automatic - Built - in loader
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Automatic - Spreading knitted fabric without centre crease
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Loader will transport rolls from the floor to the spreading machine
uprights
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Traveling spreaders• Transverse the length of the spread
during spreading process• Basic components:1. Frame or housing2. Journey or table wheels3. Fabric support rod or platform4. Guide collors – aid in correct unrolling
of fabric
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Features• Motor: to drive carriage• Platform: on which operator rides• Ply cutting device with end catcher: to hold end of ply
in place• Ply counter• Alignment shifter: actuated by photo-electric edge
guide.• A turntable• Direct drive: on the fabric support, synchronized with
the speed of travel, to reduce or eliminate the tension in fabric while spreading.( No stretching of fabric)
• Indirect bolt drive : It pulls the fabric from the bolt. The pull rotate fabric and unwind bolt.
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Cond……..• Surface leveling blade• Cloth inspection light unit• Preset spreader for no. of plies with
audible signal• Automatic lifter at the end of the table• Automatic sensing of previously
marked flaws or damages• Spreaders for tubular knitted fabric
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Specifications• Maximum fabric width :2m or 3m• Weight -120 kg• Speed 100m/min• Max height of spread 28 cm• Dead heading: when spreading
machine dispenses fabric when traveling in one direction, but returns to first end without spreading.
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Multiple bolt bars• Sandwich spreading • Tandem spreading
Turn table: it is a linkage system which permits which permits the fabric bolt to be rotated laterally