Mold can be said to be the "Mother Goddess of Creation" in all walks of life, because the birth of products is inseparable from it.

Plastic mold, as a combination mold used for various molding processes, has infinite magic. Plastic molds can create plastic parts of various shapes and sizes through clever changes in punches, concave molds and auxiliary molding systems.

Let’s take a look at the types of plastic molds:

A. Injection molds: widely used in TV casings, keyboard keys, electronic products, etc.;

B. Blow mold: allows you to drink bottles with perfect taste;

C. Compression molding molds: oven electric switches, scientific ceramics and other products are inseparable from them;

D. Transfer mold: Provide solid guarantee for integrated circuit products;

E. Extrusion mold: hoses, plastic bags and other necessary items;

F. Thermoforming mold: making transparent packaging shells is easier and more convenient;

G. Rotation molding mold: Create cute soft plastic dolls.

In addition, we can also divide molds into three types according to different gate systems:

1. Dashuikou mold: The design is simple, easy to process, and low in cost. It is the first choice for most people.

2. Slim mouth mold: The design is complex and difficult to process, but it can produce more exquisite products.

3. Hot runner mold: It adopts constant temperature hot runner plate design, and the runner is directly on the product, saving time and effort and enjoying high efficiency; the mold cost is higher.

Hot flow, crystal clear plastic, the hot runner system is like a "magic device" in the field of injection molding. It consists of a thermal gate, a hot runner plate and a temperature-controlled electrical box, making the entire molding process fully automated. There are two forms of single-point thermal gate and multi-point thermal gate, each with its own magic: single-point thermal gate directly injects into the cavity, which is suitable for single-cavity and single-gate molds; while multi-point thermal gate branches the material to Each cover then enters the mold cavity, suitable for multi-cavity molds.

◆ Advantages that light up the future

1) Say goodbye to the post-processing of nozzle materials and truly realize one-click fully automatic molding, which not only saves time but also improves efficiency;

2) The pressure loss is almost zero, avoiding problems caused by condensation on the surface of raw materials;

3) The use of no-port materials reduces raw material losses and makes product costs more controllable, while the quality of plastic parts is uniform and stable;

4) Standardized design, serialized nozzle selection, and electric heating coil technology to achieve uniform temperature heating and long service life

Disadvantages of hot runner system application

Hot runner systems are widely used in mold manufacturing, but there are also some problems that cannot be ignored.

First, it will increase the overall mold closing height. This is because the addition of the hot runner plate makes the entire mold taller. If you don't pay attention to control, it may cause a series of problems.

Secondly, thermal radiation is difficult to control, causing the biggest problem of hot runners: heat loss in the runner. This is a major challenge that needs to be addressed seriously.

In addition, there are issues such as thermal expansion, thermal expansion and cold contraction that need to be carefully considered during design. These factors may affect the quality and performance of the mold.

Finally, due to the increase in mold manufacturing costs and the increase in the price of standard parts of hot runner systems, the popularity of hot runner molds has been hindered. This is also an aspect that needs us to think about and improve.

Therefore, when using a hot runner system, we must fully understand its advantages and disadvantages and take effective measures to solve the problems to ensure optimal production efficiency and quality. Let us work together to overcome difficulties and break through obstacles!

The key to making efficient molds is:

1. Unify data management to ensure drawing integrity and sharing: Effectively manage mold product data, process data and drawing files so that the design department’s information is no longer scattered and isolated. Establish a complete database to avoid confusion between 2D and 3D, as well as original and variable versions. Standardize the design process and reduce the risk of rework and scrap.

2. Maintain consistency and integrity: Strictly inspect plastic mold drawings, processing techniques and physical data to ensure that there are no errors in every link.

3. Timely control of manufacturing costs: accurately manage the issuance of workshop summons and effectively handle scrapped tools. Through fine design, efficient processing and accurate testing, the cost of modification and maintenance is reduced and the quality of the mold is controlled.

4. Overall planning: When we talk about plastic mold manufacturing, overall planning is key. Not only do we need to unify information on design, processing technology, production workshops, and human resources, but we also need to carry out effective planning to ensure smooth coordination between planning and production. Only in this way can we guarantee the quality of plastic molds and deliver them on time.

5. Create a perfect plastic mold production management system: In order to improve production efficiency and quality, we have developed a complete and practical mold production management system. This system can help us manage product data, process data, plans and schedules so that all plastic mold manufacturing processes can be accurately monitored. Whether it is formulating production plans, designing molds, formulating process flows, or assigning workshop tasks and inspecting products, we are also comfortable in warehouse management. From planning to delivery, every link can be tracked and managed in an all-round way, giving you peace of mind!