Department of Textile Machine Design

The design of textile machinery and equipment was one of the first subjects which was established when the Faculty of Mechanical Engineering was founded. More than 700 masters degree students and 30 Ph.D. graduates have been educated at this department since it came into being. The department currently runs Bachelors, Masters and Ph.D. study programmes.The department has become a workplace for education and research, specializing in textile and single-purpose machinery. Its long-term aim is to focus on machinery design, using computers and experimental aids. In the field of research and development, it cooperates with both Czech and foreign industrial companies and research institutions.

Research Areas

• Innovative structures of textile and single-purposemachinery with the use of controlled drives.

• Innovationandoptimizationof textilemachines toobtainhigh levels of competitiveness, reliability and operation efficiency of machines in development.

• Windingandunwindingprocessesoftextilestructures.• Researchintomachinedynamics,analysisandoptimization

of highly stressed mechanical components of machines.

New Research Aims

• Applicationofmechatronic systems in the constructionofmachines with higher levels of intelligence.

• Newcomponentsfortextileandsingle-purposemachinerywith higher integration levels for advanced and state of the art technology.

• Special-purposeandservicingmachinesandequipment.

Services and Expertise Available

The department integrates both specialist and theoretical knowledge as well as state of the art equipment and combines this with practical experience in dealing with clients in order to achieve high quality solutions.

• Advisoryandconsultationservicesforthedesignoftextilemachinery and equipment.

• Researchanddevelopmentofmechanicalandmechatronictextile machine systems.

• Developmentandconstructionofsingle-purposemachinesand equipment.

• Developmentofequipment foranalyzingsamplesof solidfuel in the mining industry.

• Solving problems in the construction of machines andmechanisms (synthesis, kinematic and dynamic analysis, modelling and simulation, optimization, measurements, experiments).Reducingvibrationofmachineframes.

• Balancingmachineparts.• Recording and analyzing fast processes using speed

cameras.• Strength,stressanddeformationanalysesandoptimization

using FEM.• CADapplicationincludingdrawingdocumentation.

Laboratories and Laboratory Equipment

Research and cooperationwith industry is carried out in thefollowing laboratories:

Digital Prototype and CA-Technology LaboratoryThis is the prime workplace at the Faculty of Mechanical Engineering, equipped with a highly efficient graphics workstation, including a system for the visualization of project results. The workplace supplies conditions for computing demanding numerical calculations, required by finite element method.Itcanbeusedtoworkwitharangeofup-to-dateCA-technology(CAD,CAE,FEA,etc.)enablingthedesign,analysis,

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optimization and visualization of the digital prototypes of machines and their parts.The workplace is used for teaching purposes and it can also be accessed independently by students working on their annual projects, Bachelor’s papers and dissertations. Students gainpractical experience and skills in computer-aided design here.

Experimental LaboratoryThis laboratory is used for tuition and to support the department’s scientific research activities. Here students can familiarize themselves with the methods of measuring kinematics and mechanical quantities, including computer processingofthesignalmeasured.ItisequippedwithaPULSEanalyzer,anHBMdataacquisitionunitaNationalInstrumentsDAQ1200measuringcardandaseriesofsensorsformeasuringmechanical quantity.

Textile and Single-purpose Machinery LaboratoryThis laboratory is used for tuition and for experimental back-up of research goals and projects designed in the department. It is equipped primarily with functional prototypes and test benches, which enable new principles to be examined and experimental research into new key parts of textile machines tobecarriedout.Studentsusethisplacetobecomepracticallyacquainted with the construction of textile machinery as well as making use of selected experimental methods to develop new machines.

Laboratory for Monitoring and Analysis of Fast ProcessesThis worksite is equipped with the high-speed video camera OLYMPUS I-Speed 2. This high-image-frequency camera can

record fast processes which can then be analyzed on a computer afterwards.

Worksite for the Testing of Machine Components The worksite is equipped with a TIRAVib shaker. It enablesrandom and periodic mechanical excitation testing of machines and equipment components.

Laboratory for balancing machine componentsThe worksite is equipped with a SCHENCK HS 20 horizontalbalancingdevicewithaCAB920measuringsystem.Thisdeviceis able to balance rotary machine components and parts up to a 50-kilogram mass.

Important application results

• Uniquemathematicalmodelsofselectedoperationsonthetextile machines (model of stationary and non-stationary processes of yarn ballooning, model of the heald – heald shaft in the weaving machine, model of the groove – sinker – needle cam system in the small diameter knitting machine, models of winding and unwinding processes, etc.).

• Mechatronicsystemapplicationforyarnwindingprocesses.• New system for the creation of perfect precision cross

winding.• High performance device for the production of self-

supporting bobbins.• New way of weft insertion with mechatronic principle

application.• Testingdeviceforanalysisofsheddingmechanismsoflooms.• Dynamically-optimizedmechanismsforsewingmachines.

Important Industrial Applications

• Device forwindingrotorsofelectricmotors (implementedbyNarex).

• Deviceforwindingandpackingofshoe-laces(carriedoutbyOdetka).

• Device for regulationof tensile forces indoubledyarnsonautomaticwindingmachines(carriedoutbySaurerCzech).

• Traversingsystemofyarnwithcontrolledcrankmechanism(carriedoutbyRieterCZ).

• Optimizedsystemsofrefusetrucks liftmechanism(carriedout by ELBECO).

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• Device for representative samples taking of solid fuel andloosematerialfromtheconveyor-belt(carriedoutbyMUSa.s.,Sokolovskáuhelnáa.s.,OKD).

• Centralsamplingunitforsizedcoarsecoal(carriedoutbyMUS).• DeviceforusingradiometricanalyzerunitENELEX(carriedoutby

MUS).• Conic coal homogenizing quarter equipment (carried out by

MUS).

Expert and R&D Collaboration

The department actively cooperates with a number of industrial companies. The cooperation is based on projects with a research and development character, and on optimization and constructionproblemsofmachinepartsandsubsystems(WorkhasbeencarriedoutforMUSa.s.,RieterCZ,BehrCzech,AMFReecea.s.,SaurerCzech,BoshDiesel,ORGREZetc.).In addition the Department cooperates with two research institutes:VÚTSandVÚB.Cooperationhasbeendevelopedwitha number of foreign institutions with a similar field of interest, forexampletheUniversityofMinho,Guimaraes(Portugal),thePSGCollegeofTechnologyCoimbatore (India), theUniversityofOpole(Poland),theUniversityofTrenčin(Slovakia),the“Gh.Asachi”TechnicalUniversityofIasi(Romania).

Patents and Utility Designs

[1] BERAN,J.–HUBÁLEK,M.:MethodforYarnTraversinguponYarnWindingonaBobbinandApparatusformakingthesame,CZ300588.

[2] SVOBODA, M. – MRÁZEK, J.: Device for Picking WeftthroughWeavingMachineShed,CZ298600.

[3] BERAN,J.–PAVLŮ,M.–PRÁŠIL,V.–HOLÝ,Z.–PEŠEK,F.–VITAMVÁS,Z.–VITÁK,J.:SystemforWindingaConeofYarnorthelike,US5035369.

[4] BERAN,J.–PAVLŮ,M.–PRÁŠIL,V.–HOLÝ,Z.–PEŠEK,F.–VITAMVÁS,Z.–VITÁK,J.:MethodandDeviceforWindingup Yarn to a Cone, especially in a Textile Machine with a ConstantYarnSupply,EP0343540.

[5] BERAN, J. – PAVLŮ, M. – PRÁŠIL, V. – HOLÝ, Z.: DeviceEspecially for Cones Winding on Textile Machines, CS277298.

[6] PRÁŠIL,V.–MRÁZEK,J.:Beat-upandSheddingMechanismofLooms,CS275985.

[7] BERAN, J. – PAVLŮ, M. – KROUPA, P.: Device for ConesWindingonTextileMachines,CS275498.

[8] BERAN,J.–PAVLŮ,M.–PRÁŠIL,V.–HOLÝ,Z.–PEŠEK,F.–VITAMVÁS,Z.–VITÁK,J.:DeviceforwindingespeciallyConesonTextileMachinewithConstantYarnSupply,CS274639.

[9] BERAN,J.–PAVLŮ,M.:DeviceforConesWindingespeciallyforNon-OrthodoxSpinningMachines,CS270473.

[10] PRÁŠIL, V. – BERAN, J.: Device for Cone’s Formation onChamberorSimilarSpinningMachine,CS268416.

[11] PRÁŠIL, V. – MRÁZEK, J. – VÍTÁMVÁS, Z.: Yarn Brake onATextileandSimilarMachine,CS256332.

[12] BERAN, J. – MRÁZEK, J. – PRÁŠIL, V.: Equipment forSamplingGranulatesfromRunningConveyor,UV3244.

[13] KOPAL,J.–BERAN,J.–KANIOK,J.–ŽABKA,P.:YarnGuideforWindingRotorsofElectricMotors,UV18392.

[14] KOVÁŘ, Š. – BÍLEK, M.: Heald forWeavingMachine, UV19192.

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