The automatic feeding system adopts PLC control technology and measurement and weighing technology, which can realize raw materials information entry, formulation work order creation and management, batching accuracy control, real-time collection, display and storage of batching data information, and control the weight and flow of materials loaded to the weighing platform through the human configuration monitoring system and PLC program. To achieve accurate metering and dosing. As a dynamic continuous measurement and batching automatic control device, it can provide accurate measurement data and control means for the production control and management of various industrial sites.
020-34563445Weighing feeding system is divided into material storage, batching, metering system and electrical control system, which control system has automatic and manual two modes of operation, simple operation, flexible control, can meet the various needs of production, with high practicability. Can be adapted to powder, particles, liquid and other material ingredients, stirring control. The weight of the material loaded to the weighing platform is controlled by PLC program. The raw silicone rubber, inorganic filler and structural chemical control agent are mixed by high-speed mixer at 100~ 200 ℃ to make a granular mixture that can flow freely. Then continuously enter the twin-screw mixing extruder or multi-stage shear single screw mixing extruder, mixing heat treatment under high shear force, continuous preparation of silicone rubber compound process, can achieve efficient mass production.
The automatic feeding system adopts intermittent preparation technology to prepare mixed silicone rubber mostly in kneading machine and batching machine. In industrial production, in order to produce a large number of mixed silicone rubber, a large kneader equipped with two mixing paddles is often used, and the capacity of the kneader is several cubic meters. In order to make the raw material mix uniform, a long mixing time is required. Mixed silicone rubber can be produced in a short time by using a batching machine equipped with two rotary paddles in the tank and a pressurized block in the upper part, which can make the raw materials mixed in the compressed state. However, the effective volume of this pressurized dosing machine is only a few hundred liters, which cannot meet the requirements of mass production. By mixing in the batching machine and then heat treating in the kneading machine, the mixed silicone rubber compound can be produced efficiently and in large quantities. That is, the silicone rubber raw rubber, reinforcing filler white carbon black, structural chemical control agents, etc. are mixed evenly with the dosing machine at 150 ° C, and then treated under nitrogen protection or in a decompressed kneader at 150~200 ° C.
