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simplex machine simplex machine Presentation Transcript

  • Discussion about
  •  Fly frame is used to convert the draw frame sliver into a thin material.  This material contain mild amount of twist.  Drafting system stretches the draw frame sliver and make it thin.  The chief functi0n of fly frame is to attenuation of sliver.  Insertion of protective twist in order to hold the fine of sliver, winding of roving into a package.
  • Q: Why the draw sliver is not direct used in ring machine ? View slide
  • ANSWER: There are two main reasons: The first reason is related to the required draft. The draw sliver is to thick, untwist strand that tends to be hairy and to create fly. The fine twisted roving is better to this purpose. The second reason is that draw frame can represent the worst conceivable mode of transport and presentation of feed material to the ring spinning frame. View slide
  • Main objectives DRAFTING TWISTING WINDING Main objectives
  • CREEL: creel is used to guide the sliver. creel portion is present above the can.  Creel help the sliver on their way to the drafting arrangements without any disturbance.
  • GUIDE ROLLER: Guide roller are used to guide the sliver.
  • SLIVER GUIDE: These are also used to guide the sliver.
  • CONDENSER: condenser are used to condensing/pressing the sliver. The purpose of condenser is to bring the fiber strand back together again.
  • PRESSURE ARM: pressure arm is use to give pressure onto the material.
  • BACK PAIR OF DRAFTING ROLLER: The drafting start from these roller. The top back roller are negatively driven. The bottom back roller are positively driven.The dia: of back bottom roller is 28mm The dia: of back top roller is 28mm.
  • MIDDLE PAIR OF DRAFTING ROLLER: The main drafting occur in this region. The speed is greater than back pair of roller. The diameter of these rollers are 28mm
  • FRONT PAIR OF DRAFTING ROLLER: The further drafting occur in this region. The speed of these pair of roller is greater than the middle pair of roller. The dia of these rollers are 28mm.
  • CRADLE:  cradle are used to give proper tension to the upper and bottom rollers. for proper guidance of material.
  • SPACER:  The main function of distance clip are to maintain sufficient distance between top and bottom aprons to attenuate the strand properly.
  • APRONS:  The apron co-operate each other to guide and transport the fiber during drafting.
  • DRAFTING PRESSURE: The top roller must be pressed with relatively high force against the lower roller to ensure guidance of the fibers. Pressure in the range 100 to 250N(300N)Per roller(shaft)and they are dependent upon raw material and volume.
  • drafting pressure
  • RUBBER COT: cots are made of rubber or synthetic material and are mounted on top rollers.
  • TOP CLOTH ROLLER:  It is used to clean the rubber cot rollers.
  • FLYER:  The flyer insert twist; each flyer rotation create one turn in the roving.  In the final analysis therefore, since the flyer rotation rate are held constant, twist per unit length of roving depend upon the delivery rate.
  • PRESSER ARM: The arm has to guide the roving from the exit of the flyer leg to the package.
  • SPINDLE: The spindle is steel rod of circular cross- section with its dia reduce at the top. The slot in which the flyer pin is mounted. The dia of spindle also reduce at the bottom and takes shape of tapered cone. Angle of tapered is 80-90 Degree.
  • ROVING HOLDER: Roving holder is used to fix the roving bobbins.
  • ROVING RAIL:  Roving rail moves up and down to wind the roving on the bobbin.
  • Roving bobbins
  • NEW DEVELOPMENT IN TOYADA SIMPLEX MACHINE FL-16 IS FL- 100 &FL-200
  • SIMPLEX MACHINE TOYADA(JAPAN) FL-16 FL-100  Model of 1985  No: of spindles are120  Cradle radius 31.5*40mm  Size of feeding can 508(20”)*1321(52”)mm  Fiber type cotton, syenthetic,blended.  Processing fiber 22-40mm  Total draft 332  Model of 1996  No: of spindle are 144  Cradle radius34.5*40mm  Size of feeding can 500(20”)*1150(45”)mm  Fiber type combed or carded  Processing fiber up to 38  Total draft 348mm
  • MAIN DIFFERENCE IN FL-16 AND FL-1OO IS DRIVING SYSTEM The fl-16 is driven through cone drive system. And the modern fl-100 is driven through servo drive.
  • CONE DRIVE SYSTEM:  The tensile force required to induce movement of belt is exerted by weight.  If the ratchet wheel is fewer teeth inserted, then the belt is shifting in large steps i.e it progresses more rapidly or vice versa.  Shifting of belt is under the control of the ratchet wheel .after each stroke ratchet wheel is permitted to rotate by a half tooth.  The variation in bobbin speed originates from the cone drum. When the builder motion shifts the belt, the rotation rate of lower cone is changed.
  • DIAGRAM OF CONE DRIVEN SYSTEM
  • SERVO MOTOR SYSTEM:  . The independent three-motor drive established in the FL100 has evolved and developed into a four- motor drive, and the latest in servo technology and dramatically improved CPU performance provides even greater accuracy and control.  The FL200 demonstrates outstanding performance in every aspect of productivity and roving quality as a result of synergy with its high- performance tension controller.
  • DIAGRAM OF SERVO MOTOR SYSTEM