QFA1422 roving machine

Model QFA1422 fly frame is the new roving frame. It is researched by Wuxi No.7 Textile Machinery Co., LTD. The Model QFA1422 absorbs the advantage of the present world fly machine with multimotors to control the production. QFA1422 fly frameadopt the advanced computer controlling technology to monitor the full spinning procedure. It has the advantage to get good finished yarn, operate easily and realize the high quality, high speed, high efficiency function. Main featurePredigesting the mechanical structureThe computer controls four frequency conversion motors, then the motors drive the drafting mechinism, spindle wing, tube pipe, down dragon muscle lifting mechanism. It replaces the traditional single motor to drive the roving frame, taper gear mechanism, taper gear three-auto mechanism, configuration mechanism, direction changing mechanism and technics switch gear except the drafting gear.Drafting mechanismThere is two kinds of drafting model for choice. One is four-roller twin short rubber loop. The other is three-roller twin short rubber loop. For pressure device, there is two kinds for choice too. One is spring swing rack. The other is air type swing rack.Twist winding mechanismThe short pressure close type suspending spindle swing is made of present modern&high strength type compound material. t can realize the non-fault spinning, press and adjust easily, has high safety, reduce the clear work and save the energy.Electric controllingIt uses the scientific mathimatic model, copies the servo communication controlling technology and frequency conversion timing controlling technology. For main controlling, we assemble the programmable controller for intelligentized controlling.For man-machine conversation screen, we use the colorful LCD touchable screen. For spinning technical parameter, it can be input into program through touchable screen. The screen can store multi technical parameters for spinning types, show the full working state and have the urgent fault alarm. The special design for electric-stopping self-protection system can avoid the broken end because of power stopping suddenly. Starting and stopping of machine controlled by computer programme. It can avoid the thick knars or thin knars. When the stopped bars or body is nearing to the rolling spindle wing, the photoelectricity sensor will control the machine and stop the production safely. With the arc&taper gear and round arc synchronous belt to drive the spindle swind and tube pipe, it can has the advanced structure, reliable driving to reduce the working noise efficiently.Guide bar mechanismWith the rigid favorable fame type mechanism, the cotton bar tubes are arranged in four centralized straight lines, It can reduce the feed length difference for front and back cotton tubes, prevent the uneven roving and save the space.Main Techincal Parameter: