One, the working principle:
Central feeding system works by using a vacuum transmission, and then through the centralized piping system will be the plastic raw materials from the storage tanks to the central dehumidification and drying system, and then after the drying of raw materials transported to each injection molding machine. It is used with the central dehumidification and drying system, can use dehumidification and drying to send the cycle will be cleaned up after the transport pipeline to ensure that there is no residual granules in the pipeline, in order to avoid raw materials back to moisture at the same time, but also to ensure that the performance of raw materials added to the injection molding machine in the same. Under the action of vacuum and negative pressure in the raw materials in the original dust will be filtered out through the dust filtration system, to ensure that the entire system of air to the raw materials conveyor, help to improve the quality of molded products. At the same time in each of the transmission operation is stable, never blocking the phenomenon occurs.
The working principle of the automatic feeding system is to close the vacuum tube, start the motor, with a low vacuum airflow will be plastic resin particles into the vacuum tube, the motor stops, and then the particles will be discharged into the hopper, and so on. In the designed control system, two dosing lines can be controlled by one motor, switched by a directional valve. The two lines can run either separately or simultaneously. If they run at the same time, when one production line is finished conveying, it is judged that the other production line has finished discharging, then the motor does not stop turning and the directional valve is reversed, so as to feed the other production line. In this way, the efficiency of the control system and the motor can be utilized, thus realizing automatic feeding.
Second, composition:
Central feeding system is composed of central console, cyclone dust collector, high-efficiency filters, fans, selector rack, branch station, drying hopper, dehumidifier, micromotor hopper, electric eye hopper, cut-off valve, cut-off valve and other components.
Automatic feeding system components are, power part, also called vacuum station; dust removal device part, generally using a combination of double dust removal, automatic dust removal; raw material distribution station, also called the selection station; suction bucket, also called suction hopper, divided into vacuum and electric eye type hopper; conveying pipeline; vacuum pipeline; the central control console; protection devices.
Three, features:
Central feeding system can realize a variety of raw materials automatically supplied to any injection molding equipment for use in the multi-room, which can include drying of raw materials, color processing, as well as proportional crushing of recycled materials to use, a high degree of automation can be carried out to control, monitor, etc., and to meet the needs of the production of 24-hour non-stop. At the same time, the central feeding system is easy to operate, only a few people can control the entire injection molding plant's feeding needs, thus reducing a large number of labor costs. It can do different users, different workshop characteristics, different raw material requirements. It is possible to design an optimized program according to the actual needs.
The use of automatic feeding system can ensure the stability of the whole system operation, no plastic moisture, blocking phenomenon occurs. It is used with the central dryer (dehumidifier) system, can make the dry air on the raw materials again dry, to prevent the drying of the plastic back to moisture, and at the same time in each conveying cycle after the conveyor pipe to clean up, to ensure that there is no residual material in the pipeline. In order to avoid raw material moisture back at the same time also ensure that the consistency of raw materials added to the injection molding machine, in the vacuum negative pressure with the role of the raw materials in the original dust through the filter (dust collector) system filtered out, and is conducive to improving product quality.
It is recommended that you go to Ruida International Machinery to ask, do the central feeding cost is still good.