Study of Cotton Seeds as a Processing Material

The purpose of this research is to improve the qualitative and quantitative indicators of fiber, lint and seeds by improving the technology of preparing cotton seeds for processing. The state of the seeds after the gin was studied and their division into fractions according to the degree of pubescence was recommended, the probabilities of the seeds emerging from the gin with varying degrees of pubescence were investigated, the geometric sizes and shapes of cotton seeds were studied. It has been established that when seeds come out of gin, they have different pubescence. The conditional movement of seeds without separation from the surface has been determined;found a formula describing the movement of seeds without detaching from the surface;the movement of seeds in a micro-flight is determined;the sizes of the cells of the mesh surface were determined as a function of d_c, α and on the speed of seed movement. The aim of the research work is to increase the yield of cotton fiber by improving the processing technology of germinated seeds, to improve the quality indicators of seeds and lint. In order to achieve this goal, a mesh surface device was created to sort the seeds into fractions. Sorting technology was developed on this device and operating modes were determined. In addition, the law of surface distribution of the fractions separated from the cotton stream moving along the surface of the net was determined, and based on the results of practical and theoretical research, a mode of sorting of cotton seeds was developed.

Investigation of the Properties of Fibrous Cotton Seeds, for Sorting on a Mesh Surface

In the article the research of cotton seeds for the purpose of increasing the fiber in the enterprise is investigated, separated from the mass of the derivatives of ginning of fibrous seeds by means of effective cleaning and sorting on the mesh surface.

Theoretical Study of Seed Movement in Cotton Seeds Selection Device

The aim of the research work is to increase the yield of cotton fiber by improving the processing technology of germinated seeds, to improve the quality indicators of seeds and lint. In order to achieve this goal, a mesh surface device was created to sort the seeds into fractions. Sorting technology was developed on this device and operating modes were determined. In addition, the law of surface distribution of the fractions separated from the cotton stream moving along the surface of the net was determined, and based on the results of practical and theoretical research, a mode of sorting of cotton seeds was developed. As a result, differential equations of the law of oscillation of seeds on parallel bases, taking into account the angle of inclination for the movement of cotton seeds on the sorting surface, were constructed and programmed on a computer to construct the trajectory of seeds. On the basis of the laws of motion, the optimal value of the angle of inclination on the horizontal, which gives the state of sorting of seeds, as well as the values of the amplitude and frequency of vibrations, was determined.

Theoretical Study of the Movement of Cotton Seed Flow along the Contour of the Rib

Improving the efficiency of the process of separating fiber from cotton seeds by improving the working chamber of the gin is one of the important issues. The main way to increase the efficiency of sawn gin is to increase the fiber content in the mass of seeds in the working chamber with a uniform decrease in its density. This can be achieved by using grates with a concave working surface, which serves to move the seeds away from the rotating saws and accelerate the release of bare seeds from the working chamber. The article discusses the movement of seeds on the concave surface of the grate and determines the rational parameters of their working part. The article explores the proposed grate model, consisting of four geometric shapes, provides an analytical analysis of the geometric types. The dependence of the location of the last rectilinear part of the general contour on the shape of its convexity and concavity is determined. Cotton seeds move along the contour in the form of a stream. We assume that the thickness of the flow along the contour is constant and equal. We compose a unique equation of the flow in each section of the circuit. To determine the state of the flow, we denote its velocity, density and pressure in each section, respectively. Let us determine the flow motion along the contour with respect to the arc.

Improvement of the Process of Separation of Cotton Fiber from Seeds

The differential equation, obtained as a result of the theoretical study of the movement of the bare seed on the surface of the grate of the saw gin, made it possible to determine the trajectory of the movement of the seed. The rib is one of the main working bodies of the saw gin. It serves for the free passage of the saw blades through it into the working chamber, for the withdrawal of the fiber caught on the saw teeth after separating it from the seed. A number of studies have been carried out to improve the working elements of the saw gin. The purpose of the research is to create the possibility of timely withdrawal of bare seeds from the working chamber of the saw gin by creating a concavity on the working surface of the grate. The use of the Euler equation for the movement of bare cotton seed along the grate contour, taking into account its speed V, density ρ, pressure P, made it possible to obtain a graph of seed distribution along the grate contour. An experimental 30-saw gin was developed and manufactured, the research carried out on it allowed to determine the rational parameters of new grates, which are recommended for introduction into production. The dependence of the location of the rectilinear part of the general contour on the shape of its convexity and concavity is determined. Based on the above equations, using separate functions, we present the view of the grate profile in the coordinate system modeled on the MAPLE-17 program.

Modeling the Process of Transportation of Seed Cotton through the Parameters of the Food Zone

In the process of separating the fiber from the seed, the density of the seed roll in the roll box of the saw gin is constantly changing. With an increase in the density of the seed roll, the quality indicators of fiber and seed deteriorate, energy consumption increases, machine breakdowns increase, and with a decrease in density, the productivity of the machine decreases. For this reason, the regulation of the density of the seed roll is one of the important problems in the ginning process. For this, the speed of rotation of the feed rollers changes, which, with an increase in speed, the mass of cotton increases, and with a decrease, it decreases. Thus, the density of the seed roll is controlled. The article describes the problem of regulating the density of a seed roll in a saw gin of the DP series, an overview of the work on regulating the operation of the machine is given. In this work, the force of cotton pressure between two feed rollers is also theoretically investigated. Graphs of changes in the force of cotton pressure between two rollers are plotted depending on various initial pressure forces. The results of the study will be used in the further improvement of the cotton feeding regulation in order to maintain the optimum density of the seed roll, which will preserve the quality of the fiber and seeds while increasing the productivity of the machine.

Design and Development of Seed Cotton Pre-Cleaner Machinery

The process of transporting and cleaning seed cotton is carried out by passing raw materials through many machines. The efficiency of a cleaner machine depends on many factors and mainly machine design. The cleaner machines clean the seed cotton using mechanical forces, and these forces have a negative effect on the quality of the fiber and seeds. This paper provides results of the experimental research to improve the technology of pre-cleaning seed cotton from foreign matters. The results of research were conducted to reduce the number of machines in the cleaning process and design a new pre-cleaner machine.

Theoretical Justification of the Efficient Operation of the Seed Sorting Device

In this article, the results of researches on the sorting of seeds in the cotton ginning enterprises were described. The main goal of the research work is to theoretically study the technology of separating various impurities and immature seeds from the composition of seeds. As a result, the theoretical basis for increasing the efficiency of the sorting process is created.

Movement Differential Equation of Seed Roller which Has Been Installed Stake Accelerator on the Roll Box of Gin Machine

In the article stake accelerator has proposed on the side of the roll box in order to increase the productivity of the gin machine. The effect to the raw material of the proposed stakes was studied. Movement differential equation of the seed roller was made up and necessary graphics were taken based on laws.

The Mathematical Model of Seed Movement on a Concave Profile Rib

The differential equations of movement along the concave profile of the grate, consisting of three broken lines, are integrated on Maple 9.5 under initial conditions, using separate functions, and graphs of the dependence of movement and speed over time are presented. The graphs show the patterns of change in displacement and speed at different angles, friction coefficient of seeds along grate with a broken line of a concave profile.

Motes percentage and ginning outturn as affected with cotton cultivar and location

The present study was conducted to analyze cotton cultivar and location differences in motes, and to determine the relationships among these and ginning outturn. Therefore, the seed cotton of five promising hybrids namely;G.77 × Pima S6 and G.84 × (G.74 × G.68) growing in [Kafr El-Sheikh - Kafr El-Dawar - Etay El-Barood - Damietta], G.89 × Pima S6 growing in [El-Sharkia - El-Gharbiya - El-Dakahliya - El-Monofiya], G.83 × (G.75 × 5844) × G.80 and G.90 × Australian growing in [Sohag - El-Minia - Beni-Sueif - El-Faium] were used in this study. The results obtained indicate that the varieties exhibited different behavior responses to environmental conditions. On the whole, environmental factors associated with differences in place of growth, appeared to have much more influence on the number of motes than did varietal factors. Most of the locks for the promising hybrids at the different locations tend to cluster around the mean of 6 or 7 seeds per lock. There is a fairly marked tendency for the lock index, lint weight and lint percentage to decrease as the motes percentage increase. On the other hand, most of the promising hybrids under study tend to increase in the seed index as the motes percentage increase. However, the increasing in seed index as a result of the increasing in motes percentage for some cotton cultivars growing at different environments could be explain the difference in behavior for these cotton cultivars in lint percentage.

Determination of the Influence of the Speed of the Saw Cylinder of the Saw Gin on the Density, Speed and Composition of the Seed Roll

The article consists of studying the influence of the speed of the saw cylinder on the quality of the fiber and the productivity of the machine, as well as on the change in the density and composition of the seed roll.

Influence of the Ginning Process on the Quality of Raw Cotton

Technological progress consists of the development of improving techniques and technology. It occurs through the creation and implementation of new, more productive, economic and design-perfect machines, mechanisms, apparatus, devices, structures and the development of new technological processes. The direct process of technical progress lies in improving the instrument of labor, which is expressed mainly in increasing the power of the machine, the speed of its operation, improving and simplifying its design, in the transition to more advanced technical connections, as well as automating the control system of the main elements of automatic control systems, is a sensor giving information about the operating mode of technological machines.

Improving Fiber Quality Output by Improving the Roll Box of the Gin Saw

It has been proven that the increase in the productivity of the gin machine necessarily occurs along with the increase in the density of the raw material. However, with increasing density, productivity increases up to a certain limit, and then productivity begins to decrease. In this article, the authors analyzed the scientific work on improving the quality of fiber.

棉花加工过程中回潮率对皮棉质量的影响

研究棉花加工过程中不同回潮率对皮棉加工质量的影响。通过对新疆生产建设兵团第八师某轧花厂皮棉公检数据中直接受棉花加工过程影响的棉纤维长度、长度整齐度指数及断裂比强度的统计,分析棉纤维长度、长度整齐度指数及断裂比强度随打包皮棉回潮率增加的变化趋势,并拟合出对应数学模型。研究结果表明:回潮率对选取的皮棉加工质量指标影响显著,当回潮率低于7%时,随着回潮率的增加所选取的皮棉加工质量指标向好;当回潮率高于7%时,所选取的皮棉加工质量指标出现较大的波动。认为:较适宜轧花环节的籽棉回潮率为8.5%。

明以前我国轧花工具的传承与创新

明以前我国轧花工具经历了从手剥、赶辗、手摇、脚踏的发展过程,赶碾到手摇过程中辗轴、曲柄摇杆装置的使用突破了我国古代棉纺织技术的瓶颈,手摇到脚踏解决了轧花过程中的动力传动问题,为我国近现代棉纺织业的发展提供了技术动力和源泉。

Investigation of the Ginning Process on ДП Series Saw Gin Stands

The article describes the research process of ginning, conducted at the stand of the saw gin of the DP series. The analysis of the roll box of saw gins of different companies was carried out, given the results of studies to determine the speed and density of the seed roll in the roll box of the saw gin. A diagram is given for the dependence of the speed of the feed rollers on the incoming signal.

The Saw Gin Stand with Adjustable Movement of the Roll Box

The article contains information about saw gin used at cotton processing plants. The influence of the density of the seed roll, which is formed in the roll box of the saw gin, on the load of the saw cylinder drive and on the technological characteristics of the machine is considered. As a result of the research, in order to preserve the quality characteristics of fiber and seeds, the author proposes a gin stand with a system for regulating the position of the roll box.

Analysis of Speeds of Cylinders of Saw Gins and Linters and Determination of Critical Frequencies for them

With an increase in the density of the seed roll in the roll box of the saw gin, the quality indicators of the fiber and seed are poor, energy consumption increases, machine breakdowns increase, and when the density decreases, the performance of the saw gin increases. Therefore, the density control of the seed roll is one of the important problems in the ginning process. The paper proposes a change in the rotation speed of the saw cylinder with a decrease in the diameter of its numerical linear speed and machine productivity. The article describes the problem of regulating the density of a seed roll in a saw gin of the DP series, provides an overview of work on regulating the operation of the machine, determines the dependence of the productivity of gins and linters on the state of the saw system in these machines, as well as changes in the linear speed of the saw by changing its diameter. Also, the critical speed of the gin and linter saw cylinder was determined to prevent resonance. In this case, the Simulation package of the SolidWorks computer program was used. The results of the study made it possible to adjust the speed of the cylinders when changing the diameter of the saws, which improved the productivity of the machine while maintaining the quality of the fiber and seed.

YZ-1型棉花加工线智能在线检测系统的研究与应用

为了能从加工源头控制棉纤维质量,做到实时检测轧花信息,提升皮棉加工质量,介绍自主研发的YZ-1型棉花加工线智能在线检测系统的结构组成、工作原理及测试原理,通过与实验室检测数据对比,验证该系统测试数据的稳定性和可靠性。指出:YZ-1型系统在棉花加工生产线上加装籽(皮)棉工作站,通过网络连接轧花机生产控制系统,可实时检测棉花回潮率、杂质含量及颜色等级;相比XJ130型回潮率测定仪,测试出的回潮率曲线数据点差异较小;相比XJ128型快速棉纤维性能测试仪,测试出的杂质、颜色信息等差异较大;系统检验出的数据与国家公检实验室数据趋势有一定相关性,可实现联网智能管控,做到“因花配车”;仍需优化算法模型,建立光源和温度模型。