Overview of calculation of spinning process parameters and equipment configuration
After the machine model and spinning process are determined, the process parameters of each machine can be selected according to the planned product plan, such as draft multiple, number of combinations, speed, time efficiency, planned shutdown rate, production rate and Consumption rate, etc., in order to calculate the output of each process and the corresponding number of machines and equipment, so as to prepare a spinning equipment allocation table. The selection of process parameters should be considered in combination with the performance characteristics of the spinning process and equipment. If the process parameters are improperly selected, it will not only affect the production and quality of the product, but also cause production disconnection and supply imbalance. To produce a certain amount of spun yarn, if the linear density of the roving is large, it will affect the normal drafting and product quality of the spinning frame; on the contrary, if the linear density of the rented yarn is small and the same amount of spun yarn is produced, the number of roving frames required will be increased accordingly. The following points should be considered when selecting process parameters and equipment. (1) When selecting the process parameters of each machine, you should fully grasp the new process data and conduct careful investigation and analysis. The selected process parameters should be able to adapt to the performance of the machine and the characteristics of the products being processed. (2) There should be room when equipping pre-spinning equipment in order to adapt to the production of multiple varieties and fully utilize the potential of post-spinning production equipment. In particular, the selected speed phase draft ratio cannot exceed the allowed range of the machine. (3) For machines equipped in the front and back processes of the same product, it is possible to establish a fixed supply system for quality tracking. (4) Use spun yarns with the same cotton composition and different linear densities. The linear density of semi-finished products in each process of pre-spinning can be the same to simplify process design and facilitate production management. If the linear density of the two fine spinning yarns is close and the total number of cleaning machines is equal to two, a set of opening and cleaning machines can be used. Association Engine.
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