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Due to the different manufacturing processes of the products, the configuration and composition of the centralized feeding system are also different. Generally, the professional engineer of Dongguan Nigas always includes the following components:
Due to the different manufacturing processes of the products, the configuration and composition of the centralized feeding system are also different. Generally, the professional engineer of Dongguan Nigas always includes the following components:
l) Storage, mixing and drying equipment for raw materials
Storage equipment refers to storage bins, storage bins, etc.; as small as several hundred liters, up to several hundred cubic meters, generally made of stainless steel "target=_blank> stainless steel for the inner layer material.
Mixing refers to the process of mixing raw materials, color masterbatch (toner), pulverized materials, additives, etc. in a predetermined ratio. Depending on the process requirements, some are concentrated in the material room, and some groups are first distributed to the materials. On the injection molding machine, it is mixed by an automatic metering and mixing device, and injection molding is performed.
Drying equipment, according to different raw materials, can choose different equipment such as hot air dryer, dehumidifying dryer, vacuum dryer, etc.; drying method, according to different processes, can be divided into first drying, conveying or drying first. If there are conditions, the former should be used, because it can achieve the energy saving effect of Zui.
2) Raw material conveying equipment
Dust removal device: generally a cyclone separation device with a filter and a dust collecting cylinder.
Xiao sound device: xiao sound qi, soundproof cover and so on.
3) Conveying piping
1 material
The raw material conveying piping is generally made of stainless steel "target=_blank> stainless steel pipe, and the wear resistance of the material should be considered. The air suction pipe can be made of ordinary galvanized steel pipe or hard PV C pipe.
2 caliber
The selection of the pipe diameter should be based on the number of injection molding machines, conveying capacity, conveying distance, conveying frequency, conveying mode and other factors, and then calculated by using the theory of aerodynamics.
4) Conveying control device
Due to the complexity of the system, the control system is ever-changing, but the relatively complete system is generally composed of a three-level control device such as a central controller (main CPU), a relay controller (secondary CPU), and a single controller. Regardless of the control system, the following functions should be available:
Conveying control function: raw material selection, conveying amount, conveying time, conveying direction, conveying order, etc.
Alarm function: conveying abnormality, low material level, comprehensive fault alarm, etc.
Fault query function: troubleshooting method database, fault record, etc.
The central controller generally adopts a touch screen control mode, and the screen is intuitive and easy to operate.
(2) Conveying method of centralized feeding system
From the perspective of transportation mode, the centralized feeding system can be divided into two types: “1 byl†and “nb y lâ€.
l) "1 by 1" conveying method: one injection molding machine uses a raw material conveying pipe. This type of conveying method is suitable for occasions where there are many types of raw materials. Since the pipeline is mainly composed of a straight pipe, the relative cost is relatively low. However, there is a problem of cleaning the pipeline when refueling, so it is not suitable for the production of transparent parts such as PC/PMMA.
2), nb yl" conveying method: multiple injection molding machines use one raw material conveying pipe. This conveying method is suitable for occasions with less variety of raw materials; each conveying pipe only transports one kind of raw material. Because the pipeline has many branch pipes , bends, quick joints, etc., relatively high cost, but there is no problem of pipeline cleaning when refueling, so it is suitable for production occasions with high cleanliness requirements.
The above content is provided by Nijias Central Feeding System Manufacturers. For more professional information, please visit the company website:
Http://news.chinawj.com.cn Editor: (Hardware Business Network Information Center) http://news.chinawj.com.cn
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