Study On The Design And Process Performance Of Cocoon Testing Groping Machine

Silkworm cocoon dry test mainly adopt the method of silk reeling test,evaluation of dried cocoon,silk reeling,inspection of the host device is mulberry silkworm cocoon automatic silk reeling tester,promote has more than 10 years of development,since 2007,the device itself technology,performance,and the automatic silk reeling technology there is a big gap,and because of the limitation of design and processing at the time,the overall backward technology,equipment maintenance is difficult,to this end,China Fiber inspection Bureau repeatedly,demonstration,upgrade technology solutions,this paper studied the cocoon cocoon beater,is one of the key institutions of automatic silk reeling detector,Through the design,analysis,check and process verification of the new type of cocoon verification cocoon beater,which provides the basis for the upgrading and upgrading of the new generation of mulberry cocoon automatic reeling tester,this paper mainly carried out the following research work:(1)On the basis of analyzing the principle and characteristics of the existing automatic silk reeling machine and the automatic silk reeling tester of mulberry silkworm cocoon,this paper designs a cocoon testing machine for silk reeling.Through calculation and analysis,select the basic parameters of the motor,the output speed of 20-40 r/min,the output power of 25 W,beater plate reciprocating swing speed for 17-34 r/min,beater plate of reciprocating swing Angle is 222-270°.(2)To the machine under greater force of parts,such as the main transmission shaft,the main transmission gear design,and according to the requirements of mechanical design strength check.The calculation results are as follows:the contact stress of the tooth surface of the main transmission gear is less than the allowable contact force of the tooth surfaceσ_H<[σ_H],and the bending stress of the tooth root of the main transmission gear is less than the allowable bending stress of the tooth rootσ_F<[σ_F];The journal at the critical section C of the shaft is greater than the allowable minimum journal(?)(3)By the motion analysis and checking calculation of the finished parts,the existing automatic mulberry silk tester on the installation,commissioning,through real reeled sample inspection,in different groping reciprocating swing speed,groping reciprocating swing Angle,under the condition of testing the efficiency of groping,percentage,floss rate,the rate of silk cocoon quality related test index,the comprehensive factors,think when groping plate swing Angle is 270°,deceleration motor output speed take 25 r/min,the corresponding groping disk rotational speed is 21.25 r/min,the settlement rate of groping efficiency is better.