Design And Study On The Continuous Production Line Of Adding Bittern Into Betel-nut

Adding bittern is the critical process of the betel-nut process.Because betel-nut are naturally grown plants,the shape of the betel-nut tablets which is the betel-nut slices formed is irregular half-section ellipsoid,the automated operations like feeding,conveying and positioning will difficult to implement in the subsequent add bittern process.As a result,the current adding bittern of betel-nut process mainly depends on manual operations or semi-automatic production.With the breakthrough of the automation technology like suppress,slice and package of the betel-nut,the adding bittern technology has been became technical bottlenecks of betel nut industry.To achieve the automation of the adding bittern,this paper is based on the research of the betel-nut material shape parameters and physical characteristics,against the current problem of the key technical issues about the continuously add-bittern process,related solutions were proposed.Through combining the theoretical analysis and experimental testing,designed a continuously adding bittern production line whose features include automatic feeding,add-bittern and drying.The specific research contents are as follows:1.Determination of the material parameters of the half-cut betel-nut.The parameters of shape size,moisture content,hundred grain weight,static friction parameters and density of the half-cut betel-nut were determined by the design correlation test,which provides physical parameters for the determination of relevant technical parameters in the production line.2.Feasibility Analysis and parameters determination of the key technology of vibrating feeding of betel-nut.It is put forward that the scheme of using disc vibrating feeder to realize betel-nut feeding;Through the kinematics modeling and kinematics analysis of the betel-nut conveying process by vibration type,the key parameters affecting the delivery efficiency and quality were obtained;Its feasibility was verified by theoretical analysis and experimental research;Through experimental analysis,the optimum amplitude of the betel-nut transported by the vibratory feeder was determined.3.The orientation and adding bittern location analysis of betel-nut,and the calibration of orientation parameters.Based on the air flotation principle,a design scheme of V-type air flotation positioning device is proposed to realize betel-nut orientation;The directional parameter calibration test has been carried out by Orthogonal test method,which is about the influence rules of inflation pressure,orifice diameter and V-section angle,it determined the optimal orientation scheme and related parameters;The relative calculation and analysis of the position about adding bittern into betel-nut and determined the optimal installation range of the device of adding bittern into betel-nut.4.Drying characteristics research of the betel-nut which has been contaminated with bittern.Using the drying equipment,a single factor test was set up on the two factors that affect the environmental temperature and environmental humidity of betel nut in the drying process;Through analyzing and processing the experimental results,the optimal process parameters of the bittern betel-nut drying processing were obtained.5.A prototype of the continuous production line of adding bittern into betel-nut was designed.The feasibility analysis and related scheme design of the key technology of each function module in the continuous production line was made.Through theoretical calculation and structural analysis,the structure design of related part in the production line was made,and the overall modeling and assembly of the production line was completed by NX8.0.