PVC Mixture Flexible Proportional Feeding System and Its Control Method

Abstract

The invention discloses a PVC mixed material flexible proportion supplying system and a control method thereof. The system comprises a conveying pipe chain, a plurality of extruders of an extrusion production line and a controller. The conveying pipe chain is used for conveying PVC mixed materials onto the multiple extruders of the extrusion production line. The system further comprises feeding type weighing control devices which are installed at the upper ends of the extruders correspondingly and connected with the controller. The feeding speed of the extruders is adjusted under the control of the controller, and the feeding amount of each extruder is controlled. The control method comprises the steps that the starting signal, the speed signal and the like of a main motor of each extruder conveyed on the whole conveying pipe chain are collected, then numeric calculation is conducted according to the speed signals of the extruders, the feeding amount of the extruders is controlled, then the supply amount required by each production line is worked out according to the feeding amount, the supply amount is converted into the speed of the conveying pipe chain, and the speed of the conveying pipe chain is adjusted in real time. By the adoption of the PVC mixed material flexible proportion supplying system and the control method thereof, flexible supply of the PVC mixed materials can be guaranteed, and the even pipe wall thickness is guaranteed.

Description

technical field [0001] The invention relates to the technical field of PVC pipe material supply, in particular to a PVC compound flexible proportional supply system and a control method thereof. Background technique [0002] As labor costs and energy consumption costs account for an increasing proportion of production costs, and the impact of environmental pollution on health, how to improve the intelligent feeding of PVC powder raw materials in the PVC pipe extrusion production line and reduce production costs Reduce costs, improve the accuracy of PVC compounding, and improve the production environment have always been the goals pursued by manufacturers. [0003] At present, most production enterprises in my country use manual feeding, and a small number of large enterprises use automatic feeding, but the feeding process can only be limited to quantitative feeding. This feeding method will cause many problems and supply problems in actual production. material performance li...

AI Technical Summary

Problems solved by technology

This technology has improved the production efficiency and the automation of PVC pipe production to a certain extent, but it cannot dynamically control and adjust the pipe chain to convey PVC mixture according to the operating status of the extruder in real time, and it is also prone to the above-mentioned PVC mixture transportation. Existing problems and pipe quality problems

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