Research On Orifice-cleaning Robot Of Spinneret

Spinneret is the precision part which is indispensable to the spinning machine used in chemical fiber profession.In the production process of polyester filament high-speed spinning,mechanical impurities,gel,carbide,hot tear and other particles that exist in the melt tend to jam the orifices of spinneret,resulting in some defects of silk,such as "stigma silk","filaments","fuzz" and "denier uneven".So It is necessary to clean spinneret and other components regularly.First,this paper introduced the present situation and the development of the cleaning and inspection of spinneret.The orifices of spinneret containing dirt would be found after all the existing cleaning process,using special equipment to detect.The defects,of compressed air cleaning of SpinTrak spinneret detection system of ASPEX company and artificial needle cleaning in domestic,were analyzed in detail in this paper.The goal was presented that spinneret’s orifices can be cleaned automatically.Second,the overall scheme of the robot system about spinneret orifices cleaning was designed in this paper.Artificial needle cleaning of spinneret orifices has some defects,such as low efficiency,poor homogeneity of cleaning results and tend to scratch orifices.For this problem,the automatic cleaning of spinneret orifices way combining the compressed air and needle was determined.For the problem extracting required quickly detection date of spinneret from the large quantities of testing data of spinneret,the method,machining spinneret machine code can be identified by machine by means of drilling blind holes on the side of the spinneret,was proposed.In order to increase the intelligent degree of cleaning system of spinneret orifices,the method was proposed that spinneret fetching manipulator need to developed to solve the problem transporting one spinneret to the target location.The overall layout and control scheme of the system were also designed in this paper.Third,for the Spinneret Orifices Cleaning Module,the Spinneret Orifices Automatic positioning is studied.The three-dimensional spinneret cleaning positioning system,combining the XY horizontal motion platform and Z axis electric translational platform,was determined.For artificial needle cleaning,if the not appropriate specifications needles were used,or the cleaning direction was not correct,or the strength was used hardly,the orifice would be bruised.Aiming at this problem,the vertical rotating scrape cleaning way was applied and the rotary clearing mechanism detailed,similar to the slider-crank mechanism,was designed.Then,for grabbing spinneret module,the spinneret holding way of three-point vertical external clip-on way was determined.The spinneret grabbing manipulator was designed in detail.For the spinneret machine code recognition module,a set of machine code,which can be the scanned and identified by computer,had been developed in this paper.On this basis,the identification system of spinneret machine code was developed.Finally,on the basis of the above research,the robot prototype about spinneret orifices cleaning,contains the cleaning function of spinneret orifices,the recognition function of spinneret machine code and automatic grabbing function,had been developed in this paper and the experimental research about this robot prototype had been done.The experimental results showed that the system improves the uniformity and efficiency of spinneret orifices cleaning and had filled the domestic blank in the field of in spinneret orifices automatic cleaning.It also laid the foundation for "unmanned" factory work of cleaning,detection and clearing of spinneret.