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Positive Drive Beam Creels for Needle Looms

 

 

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Four techniques of drawing in warp are illustrated here

 

1.       Peripheral drive, positive motor braking . .  more

2.       Capstan drum with motor braking        . .  more

3.       Positive drive roller bed for naked rubber tape feed        . .  more

4.       Traditional friction braking by strap on simple frame.

 

All positive feeds can be set at Constant Tension by drawing-in past ‘servo’ rollers      (. .  more . .)    The design of these rollers relieves the shedding  mechanism of arduous load.

 

STABEL 4-Beam Creel for  21 x 21 Tricot Beams

Typical beam layout - Scroll for more information   . .

 

 

w Constant Tension  w Accurate pick of Rigid Yarn w Covered Rubber or Naked Tape Feedw

w STABEL beam creels can be either single or double bayw
w Convenient beam handling by wheeled trolley w

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Type AR    Peripheral Drive for Warp-Tension by Motor Braking

 

 

This detail shows two STABEL techniques of motorised positive feed . . .

·         The LH ‘AR2’  unit drives by peripheral ‘cam-lock’ roller (working on the rim of the beam).  This (binder) sheet is drawn from the beam, past Constant Tension rollers in cradle ‘E3’  (. .  more . )  thru the droppers and into the shed (at the top right of the photo.)

·         The RH blue gearmotor drives elastomeric tape through a set of rollers at either constant stretch or constant tension (. .  more  .)
 w Individual motor braking can be applied to any number of beamsw

w Rigid sheets from rack mounted beams are normally drawn over top ‘Leese’ bars w

w Braked peripheral drive is widely used for positive feed of Covered Rubber on Beam w

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Type AD    Warp Sheet Pre-Tension by Capstan Drum

 

·         STABEL Capstan Drum Feed provides a constant tension warp sheet by accumulating body yarn either from multiple beams, or from cone-creel.

·         This  ‘combined’ sheet is drawn around a covered drum AR1 by convenient idler rollers

·         Tension is controlled by roller cradle ‘E1’ which floats in a ball bearing suspension

·         Scroll for more text  . .

 

Click for animation . .

 

 
w Digital feed can be set to precise speed, or can be servo controlled via tension sensor w
w Floating cradle removes stress from shedding mechanism when loom is working hard w

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Type ARF   Positive Rubber Feeds

 

 

STABEL positive drives for

w COVERED RUBBER ON BEAM w

w NAKED RUBBER TAPE w

The illustration here shows independent gearmotor drive to conventional rubber feed rollers

·         Tape Rubber is drawn-in from the box, through the splitter, over the grooved roller, through the droppers and into the shed.

·         Covered Rubber is drawn-in from a beam, over the grooved roller, again through the droppers and into the shed.  The beam is then fitted with a peripheral drive with the motor, of course, acting as a brake (. .  more  .)

·         In each case tension is controlled by Roller Cradle ( . .  more . .)  which floats in a ball bearing suspension under the watchful eye of a servo sensor.

·         Scroll for more text  . . . .

 

w Digital feed can be set to precise speed, or can be servo controlled via tension sensor w
w Floating cradle removes stress from shedding mechanism when loom is working hard w

 

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Sheet Tension Roller Cradles

w Rigids & Rubbers w Single or Multiple w Easy draw-in w  Servo link to Posi-drives w

Scroll for more information   . .  

These tension sensitive escapement rollers are drawn into the path of the warp sheet from a single beam, or the assembled sheets from a Capstan Drum pre-tensioner. The animation simulates the independent suspension as it works  against the springs and weights.

 

 

 
 
w Simple effective yarn path isolates unwanted ‘upstream’ tension variation w
w Floating cradle removes stress from shedding mechanism when loom is working hard w

 

 

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