The difference between the central feeding system and the automatic feeding system
The working principle of the central feeding system is to select the vacuum transfer method, and then transport the materials from the storage tank to the central dehumidification and drying system through the assembled pipeline system, and then transport the dried materials to each injection molding machine. The conveying pipeline can be sorted after the dehumidification, drying and conveying cycle to ensure that there are no residual pellets in the pipeline. While preventing the material from regaining moisture, it also ensures the common function of the materials in the injection molding machine. Under the effect of vacuum negative pressure, the original dust in the material will be filtered out through the dust filter system to ensure that the air in the entire system transports the material, which helps to improve the quality of the molded product without any blockage.
The working principle of the automatic centralized feeding system is to close the vacuum tube, start the motor, and send the plastic resin particles into the vacuum tube with low vacuum airflow. The motor stops, and then the particles are discharged into the hopper, and so on. In the planned control system, two feeding production lines can be controlled by one motor, which is switched by a directional valve. The two production lines can be operated independently or together. Assuming that the two work together, when one production line is delivered, it is judged that the discharge of the other production line has been completed, then the motor keeps turning the direction valve to reverse, and then feeds the other production line. This can show the power of the control system and the motor, and then complete the active feeding.
The central feeding system consists of a central control console, cyclone dust collector, high-efficiency filter, fan, material selection rack, branch station, drying hopper, dehumidifier, micro-motion hopper, electric eye hopper, intercepting valve, intercepting valve, etc. The components are composed.
The components of the automatic centralized feeding system are: some power, also called vacuum station; some dust removal equipment, generally use two-layer dust removal contact method, active dust removal; material distribution station, also called material selection station; suction bucket, also called Suction hopper, divided into vacuum type and electric eye type hopper; transportation pipeline; vacuum pipeline; center console; protection equipment.
The central feeding system can complete the active supply of multiple materials to any injection molding processing equipment in multiple chambers, which can include material drying treatment, color matching treatment, and use of damage recovery according to share, which can implement highly automated control , Monitoring, etc., and can meet the production needs of 24 hours continuous machine. At the same time, the central feeding system is easy to operate, and only a few people are needed to control the feeding needs of all injection molding plants, and then a lot of labor costs are reduced. It can achieve different application users, different workshop characteristics, and different material application requests.
The use of the central feeding system can ensure the stable operation of the entire system, and there will never be any plastic resurgence or blockage. It cooperates with the center dryer (dehumidifier) system to allow dry air to dry the material again, to prevent the plastic from regaining moisture after drying, and to arrange the conveying pipe after each conveying cycle to ensure that there is no residual material in the pipe. While preventing the material from regaining moisture, it also guarantees the commonality of materials in the injection molding machine. Under the effect of vacuum negative pressure, the original dust in the material is filtered out through the filter (dust collector) system, which is beneficial to improve the quality of goods.
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