Types of plastic injection molds in China

Types of chinese plastic injection molds

plastic injection molds in china

plastic injection molds in china

Plastic injection molds to create objects, injection molding plastic is forced into the mold cavity. They are often used to scale manufacturing operations, creating new products, such as toys, kitchen utensils, caps, mobile phone sets. You can use the injection mold “flash line” extra plastic around the seams discovery projects. There are four main types of commonly used plastic injection molds.

Cold runner mold

Cold runner mold, such kind of injection mold is the most common type. The gates and runner mold used for injection molding plastic in each mold cavity. However, the sprue and runner and some hardened once solidified. Workers then these works and recycling. This may cause the waste problem, which may make their economic use.

Two plate plastic injection molds

Two plate cold runner mold is so named because they are characterized by two plates together. Only a parting surface that must be located in the runner. This is the easiest cold runner mold.

Three plate plastic injection molds

Three plate cold runner mold has three, which means that there is one pair of parting planes. Three of the manifold, the movable plate and floating panels. Contains half of the gate hot runner plate and the runner-up. The injection system comprising half of the movable plate and the geometric shape of the part. The other half of the rotor included in the floating plate and geometry. The system can be located in any of the parting, and anywhere on the surface can be selected through the sheet to provide flexibility.

Hot runner mold

Hot runner mold provides a different way of plastic. As part of the runners, although a plastic syringe and cool the cold runner, the hot runner mold in the mold and stored in the temperature higher than the melting point of the plastic. This means that the gate and runner sclerosis will never have a chance. This also reduces the amount of plastic waste. However, the hot runner injection mold requires more skill and maintenance, and have a higher baseline costs. However, they tend to save materials according to their own.

Precision multi cavity injection molds making experience

Injection molds companies

Injection molds making

 

According to the size of the production capacity, product structure, to determine the appropriate number of cavities, more precision molds, processing difficulty, the higher the cost of the mold cavity. However, the unit price of injection molded parts dropped significantly. Factors that affect the size of the multi-cavity:

1, precision injection mold processing. Such as cavity discharge, each chamber is a discharge, the discharge process is not well controlled, cavity size deviation.

2, the injection mold assembly precision. Because of the reasons of the assembly results in the internal structure of position deviation.

3, Injection mold design factors, such as whether the design of the flow channel and reasonable uniformity into the plastic, unreasonable runner advanced gum near the nozzle chamber, away from the last-glue because contraction inconsistent, holding pressure situation size will also inconsistent deviation. Into the rubber mouth diameter size will cause the size of the deviation. Mold waterway design is unreasonable, in the cavity waterway lay . According to the size of the production capacity, product structure, to determine the appropriate number of cavities, more precision molds, processing difficulty, the higher the cost of the mold cavity. However, the unit price of injection molded parts dropped significantly. Factors that affect the size of the multi-cavity:

  •  precision mold processing.

Such as cavity discharge, each chamber is a discharge, the discharge process is not well controlled, cavity size deviation.

  •  the precision mold assembly

Because of the reason of the assembly results in the internal structure of position deviation.

such as whether the design of the flow channel and reasonable uniformity into the plastic, unreasonable runner advanced gum near the nozzle chamber, away from the last-glue because contraction inconsistent, holding pressure situation size will also inconsistent deviation. Into the rubber mouth diameter size will cause the size of the deviation. Mold waterway design is unreasonable, in the cavity waterway layout should be uniform cooling, if unreasonable, the different parts of the mold at different temperatures, resulting in shrinkage, and thus the size of the deviation. All in all, a multi-cavity mold size deviation basic mold. Little effect of the injection molding process.out should be uniform cooling, if unreasonable, the different parts of the mold at different temperatures, resulting in shrinkage, and thus the size of the deviation. All in all, a multi-cavity mold size deviation basic mold. Little effect of the injection molding process.According to the size of the production capacity, product structure, to determine the appropriate number of cavities, more precision molds, processing difficulty, the higher the cost of the mold cavity. However, the unit price of injection molded parts dropped significantly. Factors that affect the size of the multi-cavity: 1, precision mold processing. Such as cavity discharge, each chamber is a discharge, the discharge process is not well controlled, cavity size deviation. 2, the injection mold assembly precision. Because of the reasons of the assembly results in the internal structure of position deviation. 3, mold design factors, such as whether the design of the flow channel and reasonable uniformity into the plastic, unreasonable runner advanced gum near the nozzle chamber, away from the last-glue because contraction inconsistent, holding pressure situation size will also inconsistent deviation. Into the rubber mouth diameter size will cause the size of the deviation. Mold waterway design is unreasonable, in the cavity waterway layout should be uniform cooling, if unreasonable, the different parts of the mold at different temperatures, resulting in shrinkage, and thus the size of the deviation. All in all, a multi-cavity mold size deviation basic mold. Little effect of the injection molding process.

Automation production

automation production in chinaAutomation production in 2016

In 2016, robot a with almost every injection molding machine and official signs appear multiple times “innovation” and “green solution”. In addition to the brand, the basic demand is pick and place system, one of the vendors proposed unattended self driven AGV display.

About AVG
AGV is not a new technology, in the early 1950s, factory running driverless forklifts. But in China, this is a new concept. In the current national advocacy “automation”, “innovation”, “green solution”, the injection molding industry emphasizing the machine
People are important, even if you don’t need it.

China is not a low production country

Standing on the stage the 2016, China will no longer be a low production cost, higher production costs, labor costs are relatively high, the country faces all the limitations of further economic growth. This is why we have to focus more on automation production technology. The reasons for the operation and the high productivity. We can not only rely on low-cost labor and low-cost land.
Compared with the developed economies, China’s wage level increased significantly in the past 15 years. According to the labor statistics from 2002 and 2009, hourly wage costs in China manufacturing increased nearly 3 times, from $0.60/hr jump to 1.70/hr $. China’s Injection mold industry, mold maker per hour wage compensation rate of $3.07 and manufacturing workers for the 2012 U.S. dollars. Since 2004, the average annual salary of employees in cities and towns throughout the country have been close to double-digit, 2014 reached (about $9000) 56339 rmb.
China has the world’s leading automation production investments respond.2015, when industrial robot’s global sales for the third consecutive year a record level increased by 8% to nearly 240000 units, with most of China’s demand, according to the International Federation of robotics(IFR) statistics, industry and trade Industry robot sales increased by 16%, IFR reported that China’s economic growth is the main driving force, will be fully automated and intelligent automation.