未分类

The Importance Of Using Plastic Auxiliary Equipment In Plastic Processing

The Importance Of Using Plastic Auxiliary Equipment In Plastic Processing
59Views

1. The feeding system provides high-quality raw materials
1. The auxiliary processing equipment for the feeding system mainly includes drying, conveying, measuring and mixing equipment.
Drying equipment is used for pretreatment of materials before molding and processing of easily hygroscopic materials, such as ABS, polyoxymethylene (POM), polycarbonate (PC), nylon (PA), organic glass (PMMA), and some polyolefin plastics. In the process of processing, in order to ensure the quality of the product, it must also be highly dried. For example, in the production of pipes of random copolymer polypropylene PP-R and injection molding of pipe fittings and polyethylene materials for cross-linked polyethylene, the materials need to be dried to The required water content. In the production and processing, according to the product’s requirements for the moisture content of the raw materials, different drying methods and drying equipment must be used. For pellets such as fillers and PVC, oven dryers are often used; for thermally sensitive plastics, rotary double cone vacuum dryers are used; for continuous drying, direct hopper dryers are often used.
2. For the feeding system, the spring tube type conveying system and the Roots blower type air conveying system are used to convey the powder material, and the vacuum conveyer is used for the particle conveying and feeding. The centralized feeding equipment is mostly suitable for large-scale and automated production processes. The equipment adopts computer centralized control, and various raw materials are weighed in proportion to the weighing device and then enter the mixer. The hoppers are equipped with material level sensors, which can automatically open or close the storage barrels on the conveying pipes according to the amount of materials. The key technology of the centralized feeding system is the accurate measurement of electronic scales, which can accurately feed the required materials in proportion.
2. Temperature control to ensure product quality
1. The heating equipment in the plastics processing process mainly refers to the temperature heating controller for barrel molds and calender rolls used in extrusion, injection molding, calendering and other production equipment. At present, the heat conduction oil electric heating method is generally used to replace the complicated steam heating method.
2. The mold temperature cooler is mainly used to cool the mold temperature of injection molding. Generally there are cooling water channels in the mold design. The refrigerator is divided into air-cooled and water-cooled, air-cooled and light, but the heat exchange capacity is low, the water-cooled heat exchange is large, the heat exchange effect is good, and it is widely used.
3. Recycling reduces production costs
The proportion of corner waste in plastic processing is about 5% to 20% of the total production. It can be said that the recycling of corner waste determines the survival of the enterprise to a certain extent. Plastic processing companies are paying more and more attention to this. At present, plastic shredders that are widely used are divided into equipment suitable for the crushing of hard products and small-volume products; crushing equipment for the recycling and granulation of flexible plastic foams; for direct production of pipes and profiles Crusher for crushing and granulating; agglomerator for recycling waste silk. In the plastic recycling equipment, it is now moving towards the development direction of low noise, easy operation, continuous tube conveying and discharging of the collecting hopper.

Leave a Reply