|
Cotton is a colossal strategic materials, and is second only to food crops. Cotton is also involved in the agricultural commodities of the two industries and the textile industry, and is closely related with the life of the people and the interests of the majority of farmers. Therefore, the development of cotton production also has an important impact on the development of the national economy. Nutritional bowl of cotton seedling transplanting cotton growing technology with Chinese characteristics, in our inland cotton-growing areas has been the promotion of large-scale applications. This is of great significance in promoting the cotton early onset, increase cotton production. But for a long time, due to the complexity of their own characteristics and agricultural machinery, agricultural machinery work objects, agricultural machinery developed there are greater difficulties made bowl mechanical performance is only limited to theoretical analysis and a qualitative description of the lack of precise experimental verification and calculations. The first bowl compactiveness nutritional bowl of mechanical properties, can be used to evaluate the density of the bowl and the bowl intensity. In order to study the various factors that affect the nutritional bowl compaction, we design a bowl stamping test bench. Through research and analysis, we found that the firmness of the main factors of the influence bowl water content, fiber content, and compression ratio. Through three group trial studied the text analysis of the impact of these three factors on the strength of the nutritional bowl; most reasonable range of values ??for each factor and be drawn based on the experimental data are as follows: 23% moisture content, soil and fiber quality than 2.1:1 or so, the compression ratio is about 1.7. Secondly, we study the two main factors affecting the nutritional bowl intensity uniformity: suppression of way and repression speed. Weighing bowl made of different stamping and punching speed cutting experiment by setting the objective function, and through the analysis of experimental data, obtained more reasonable pressure bowl process: from the suppression of the way, it should be adopted in the bottom of the top pressure; suppression of speed, we found that suppression of the faster, more uniform nutritional bowl strength, considering the actual production conditions, we come to the most reasonable the repression speed range :0.65-0 .85 m / s. Finally, based on experimental data and test conclusions in this article, we design a pneumatic Automatic bowl machine, mainly including overburden device compaction device, molding, power transmission, rack and other institutions. In addition, the prototype uses a PLC control program framework design, programming, Finally, simulation and testing of the program. By actual prototype prototype proved able to meet the design requirements and the actual production requirements.
|