The Energy Effective Method of Modeling and Manufacturing of New Profile Teeth of Saw

Now in many countries are used old technology manufacturing ginning machines for ginning raw cotton. Also includes following operations. Punching of disks of necessary diameter 320 mm and an internal aperture 60 mm, transportation, cutting of teeth on teeth cutting machine, sharpening and training of working parts of a teeth of a saw is sharp sheet on press cutting machine. This operation is very time-consuming and demands very many time and labor and the big investment. As working hours saw gin disk in the working chamber are 72-80 h, it is important to check the increasing capacity of working saws. For this purpose it is necessary to improve properties of a saw and replacement of a material by stronger materials [1-3].


Introduction
Now in many countries are used old technology manufacturing ginning machines for ginning raw cotton.Also includes following operations.Punching of disks of necessary diameter 320 mm and an internal aperture 60 mm, transportation, cutting of teeth on teeth cutting machine, sharpening and training of working parts of a teeth of a saw is sharp sheet on press cutting machine.This operation is very time-consuming and demands very many time and labor and the big investment.As working hours saw gin disk in the working chamber are 72-80 h, it is important to check the increasing capacity of working saws.For this purpose it is necessary to improve properties of a saw and replacement of a material by stronger materials [1-3].
The research is carried out by using Euler's following formula: ( ) Stress that is resulting in a cross section of the rod when reaching compressive force to the critical value, called the critical σk.Euler's formula (1) is valid if (critical stress does not exceed the limit of proportionality).Usually, the condition of applicability of Euler's formula is expressed in terms of the rod flexibility λ is calculated by the formula (2).
Where, l-length of saw or rod I min -minimum moment of inertia saw distances of 22 mm (Figure 2).Also we have revealed that tool steel Р9 has the greatest indicator of stability of critical force.
In Figure 3, we can see that increases of an indicator, the minimum moment of inertia leads to stability increase (critical force) saw a disk.From this we can look at an ellipse of inertia and have measured its positions from any point of an ellipse to predict stability of a detail to certain loadings [3,4].
We conducted research about saw and gasket at different distances between the saw.In order to ensure the sustainability of saw at work in dynamic loads, we using the geometric characteristics determined the optimal parameters between the saw distances.Using these indicators, we can simulate the best option of working parts of gin and increase the life of saws twice.
These researches have allowed to define a necessary material to increase working hours of saw disk in the working chamber from 100 to 180 hours.Calculations have shown that the most average (Table 1) indicator of critical loading has a material from U8 at a mode to work 45°C degrees in working chamber Pk=0.148Mpa.Above average (Table 2) indicator of critical loading has a material from 12Х1МФ in the way of work 45 0 C degrees in working chamber Pk=0.151Mpa.The high indicator of critical loading (Table 3) has a material from Р9 in the way of work 45°C degrees in working chamber Pk=0.156Mpa.From above listed calculations it is visible that the highest indicator of critical loading has the materials from fast cutting steel Р9 and 12Х1 МФ.Usage of these materials for manufacturing of disks will allow to increase working time of saws and to save much money and resources [3][4][5][6].

Results and Discussions
But at present the old saw manufacturing technology will complicate possibility of processing of tool steels and turn to fast wear process of punches and matrixes teeth opening machine tools.For this purpose it is necessary to use front lines of technology for processing of tool steels of laser and water cutting.As one tooth has height of 4 mm and width of 4 mm and a thickness of 1 mm it leads to fasten heating of a tooth at use laser are sharp and to complicate process of shining shown at Figure 4. We have chosen the technology of processing with the help of water     G30 X0.Y0.

G90 M30 %
In Figure 4 A-C the machining way is represented at manufacturing of one saw with a new profile of a tooth on the equipment by water cutting.Before manufacturing of a saw we will put some sheets against each other and so it is created some layers from a demanded material of sheet using accuracy water cutting we can put simultaneously for processing for example 5 layers of metal sheet.In Figure 5 the machining way is represented at manufacturing some quantity of saws with a new profile of a tooth on the equipment by water cutting.

Conclusion
The result shows that the usage hydro abrasive cutting for manufacturing of a saw with a new profile of a tooth by means of program Solid CAM will allow raising productivity several times.We have achieved reducing time of machining to 60% according to usual machining.
From this follows that we can let out new energy and resource saving saws from tool steels which will help to save much money spent for acquisition of materials and on processing of metals.Introduction of a new profile of a tooth of a saw will allow on 15-20% raising productivity at branch of a seed from a cotton fiber.Use of new saws from tool steels in single-chamber two cylinder gin will allow to increase capacity of saws several times.
Considering above stated data we can tell that the industry using energy saving in cotton processing industries will save technologies on resources and the electric power.This will raise energy efficiency and resource saving of the equipment.

Figure 1 :
Figure 1: Interrelation critical force with the different size of gasket.

Figure 2 :
Figure 2: Saw cylinder of gin and distance between of saw.

Figure 3 :Figure 4 :
Figure 3: Interrelation critical force with the minimal moment inertia.

Figure 5 :
Figure 5: It is presented that frontal kind of a saw and the increased kind of teeth of saw.

Table 1 :
U8 Critical force Pk (the loss of stability in elastic stage) with different distance between of saw's.

Table 2 :
12Х1МФ Critical force Pk (the loss of stability in elastic stage) with different distance between of saw's.

Table 3 :
P9 Critical force Pk (the loss of stability in elastic stage) with different distance between of saw's.