What are the design points for crate mould?

We supply you with all kinds of crate moulds. A good crate mould manufacturer must produce high quality crate mould. At the beginning of the establishment of the company, regardless of technology and variety, have begun to produce crate mold. Read more to learn more about our crate molds!

Here are the main points of the article:

What is the maintenance of the crate mould before production?

What are the advantages of hot runner crate moulds?

What are the design points for crate mould?

1. What is the maintenance of the crate mould before production?

Clean up oil and rust on the surface of the crate mould and check whether there is any foreign body in the cooling hole of the mold.

Check the gate for residual material.

Check the fixing plate to make sure the screw holder is tightened.

After the crate mould is fixed on the injection molding machine, the injection molding machine is operated first.

2. What are the advantages of hot runner crate moulds?

There are many advantages of using hot runner system to make crate mould compared with cold runner mould. The most obvious choice is as follows:

No runner system to be removed from the mold.

When there is no cooling channel, the cycle time is short.

The opening stroke of the crate mould is reduced.

Eliminates the cost of storing and regrinding the runner.

The risk of material contamination is lower because no surface material is used.

Gates may have an easier balance.

The diameter of hot runner can be larger than that of cold runner. Therefore, lower injection pressure can be used.

Cooldown reduced.

Better part quality can be achieved due to more consistent cycling.

Since less injection pressure is required, more indentation can be used.

A smaller injection weight means a shorter metering time and injection time.

Lower injection pressure means smaller machines can be used.

3.  What are the design points for crate mould?

For high efficiency crate moulding, these following should be considered:

1. In today's mature market, facing the transparency of cost, innovation of mold technology must be made in production to fill the system. Special hot runner system is used to assist molding, so the cost of plastic crate mould will reduce the production efficiency. HDPE is recommended in the choice of plastic materials. The material melt index should be around 6.

2. The screw speed of the crate mould must exceed 400 on the selected injection machine. Tooling and product release systems mean revenue returns.

3. The circulation cooling system achieves the best effect, and the injection speed can be up to 800mm/s. Considering the cooling properties of the melt, a suitable cooling system must be in place at the beginning of the injection. Therefore, the production of plastic crate moulding must use more than 2 times of tempered steel, in order to make the crate mould in efficient production to withstand the test.

4. The plastic crate moulding must have high-precision mold clamping, parts adopt DME standard, insert and guide to prevent deformation and deviation, so choose a reasonable guide design to improve the wear resistance, reasonable insert material to improve the life of the plastic crate moulding, in the process of high efficiency.

5. The ejection method of plastic crate moulding is best designed as an automatic ejection mechanical system to increase the drafting angle as much as possible so as to make the ejection smoother and more effective and realize automatic ejection. Therefore, the design of the crate plastic forming is very important, the ejection function of the mould when the mould is opened determines the efficiency, thus reducing the cost.

6. Bronze is inlaid in the necessary parts of the crate mould. The best properties of the bronze help the mould to cool quickly, increasing the mould efficiency by more than 2 times.

After reading the description above about crate moulds, better understanding of the crate moulds producing can be obtained. For more product include household mould, packaging mould information, feel free to contact our technicans.