Before starting, the injection molding machine and auxiliary machine must be inspected to ensure that the equipment is in normal condition (according to the requirements of L1 equipment operation records). If any problems are found, the maintenance personnel should be notified in time.

2.Power supply for injection molding machine

 

Turn on the power supply of the injection molding machine, the mold temperature of the mechanical and electrical source, the general mold temperature is set to 80℃, the drying mechanical and electrical source (raw materials need to be dried at 80℃ for 4 hours), the cold water mechanical and electrical source, the exhaust fan and other power supply, turn on the injection molding machine oil pump motor screw and begin to heat up.

3.Grease is applied to the guide post

Wipe the oil stains on the parting surface, guide post, guide sleeve, slider, cavity and oblique guide post of the die with oiling paper. Apply grease to the surface of guide post, guide sleeve, slider and oblique guide post to prevent the die from wear during long working time.

4.Confirm mold condition

Confirm the mold condition, check whether there is damage, whether the oil circuit is smooth, whether the pipe connection is connected in place, whether there is oil leakage phenomenon.

5.Automatic cleaning key

When the temperature meets the requirements, discharge the material, open the baffle of the feeding port, press the automatic cleaning key of the operation panel of the injection molding machine, and clean the material for 2-3 times. After the completion of the cleaning, clean the remaining material of the nozzle and the mold suction nozzle.

plastic injection molding machine

In 1980, France produced the world’s largest screw injection molding machine, with an injection capacity of 170kg. From the 1980s to recent years, the development of injection molding machine is mainly concentrated in several aspects: namely, the application of precision automatic control system and various auxiliary equipment in automatic molding; Precision machinery and high performance hydraulic system; Various special injection molding machine development and computer aided design of complex shape parts plastic flow analysis to determine the best injection conditions; Application of various energy saving technologies in injection molding machine.

Working principle of injection molding machine

Injection molding machine referred to as injection molding machine, injection molding is the use of plastic thermophysical properties, the material from the hopper into the barrel, the barrel outside by heating ring heating, so that the material melt, in the barrel is equipped with external power motor drive rotation of the screw, the material in the double action of the screw shear gradually plasticized, melting and homogenizing, when the screw rotation, Material in the groove friction force and shear force under the action of the molten material pushed to the head of the screw, at the same time, the screw in the material reaction backward, so that the head of the screw to form a storage space, complete the plasticization process, and then the screw in the injection cylinder piston reasoning under the action of high speed, high pressure, the storage room of the molten material through the nozzle into the mold cavity, After the molten material in the cavity is kept under pressure, cooled and solidified, the mold is opened under the action of the mold closing mechanism, and the finished product is ejected from the mold and dropped through the ejecting device.

Composition structure of injection molding machine

Injection molding machine according to the injection molding process requirements is a mechanical and electrical integration of a strong machine, mainly composed of injection parts, closing parts, frame, hydraulic system, heating system, control system, feeding device and so on.

plastic injection molding machine

At present, the common injection molding device has single cylinder type and double cylinder type.

Plasticized parts have two kinds: plunger type and screw type. In the process of continuous rotation of the screw, the plastic realizes the change of physical state, and is finally injected into the mold cavity in a molten state. Therefore, the plasticized component is the core component to achieve uniform plasticizing and quantitative injection.

To provide customers with plastic products development, mold design, product manufacturing and injection molding, its products are widely used in every field of life today, such as household appliances, instruments, wires and cables, building equipment, communications electronics, automotive industry, aerospace, daily hardware and so on.

The overall production process of plastic products is: raw material selection – raw material coloring and matching – design casting mold – machine decomposition injection molding – printing – assembly detection of finished products – packaging factory.

Plastic products are made by injection molding or blow molding, so every time you design a sample, you have to open a new mold, and the mold is generally tens of thousands to hundreds of thousands of dollars, so in addition to the raw material price of plastic products, the cost of the mold is also very large. There may be many parts to make a finished product, and each part needs a separate mold. For example, the trash can is divided into: the barrel body — the lid, the liner, the handle several parts.

Generally speaking, the plastic factory refers to the processing of plastic products with plastic raw materials, semi-finished products and finished products, such as MP3 shell, telephone shell, mobile phone shell, computer monitor shell and other plastic accessories. And finished products such as plastic cups, plastic washbasins, plastic buckets, and other daily necessities. Its essence is called plastic processing plant.

Guanxin`s HDPE Bottle Injection Blow Moulding Machine is one of the hot sell plastic injection blow molding machines manufactured from China. This kind of plastic bottle making machine looks like a traditional horizontal injection molding machine but it`s optimized with dozens of parts or even redesign the structure, and electronic and hydraulic systems. Our HDPE Bottle Injection Blow Molding Machine can be used to produce lots of single-layer bottles without handle. The product range covers the different sizes of Milk/food packing bottles, Chewing Gum Bottle, Comestic Bottles, Medical Bottle, Tablet-Bottle, Pesticide Bottles, Roller Ball Bottle, Eyedrops Bottles, jar bottles, and other HDPE molding bottles.

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