The saying "mold is the mother of industry" is familiar to everyone. The importance of mold is more and more recognized by people, mold design and mold manufacturing technology has made great progress.

The innovation of mould processing technology, the wide application of various new mould materials, the standardization and specialization of mould parts, etc., all force us to adapt to the development of mould faster and more.

Speed up requires that the design section can be completed in about 3 days to the post section: improve the accuracy; In the design process to consider each part of the processing method, as far as possible to use high precision, low processing cost processing method.

The increase in accuracy and speed goes hand in hand. The improvement of speed inevitably requires the improvement of precision, and the improvement of precision inevitably leads to the improvement of speed.

General definition of die: In industrial production, metallic or nonmetallic materials are used to produce parts or articles of the desired shape by pressure through the use of various presses and specialized tools mounted on presses. These special tools are collectively called molds.

Injection molding process description: mold is a tool for the production of plastic products. It consists of several sets of parts with a mold cavity. During the injection molding process, the mold is clamped on the injection molding machine, the molten plastic is injected into the mold cavity, where it is cooled and formed, and then the upper and lower molds are separated, and the product is EJ Ejected from the mold cavity. Check the system and then close the mold. For the next injection, the entire injection molding process is cyclic.

A plastic mold consists of two parts: a movable mold and a fixed mold. The movable die is installed on the movable template of the injection molding machine, and the fixed die is installed on the fixed template of the injection molding machine. In injection molding, the moving mold and the fixed mold are closed to form the pouring system and cavity. When the mold is opened, the moving mold and the fixed mold separately remove the plastic products.

Although the structure of the mold may vary depending on the type and properties of the plastic, the shape and structure of the plastic product, and the type of injection machine, the basic structure is uniform. The mold is mainly composed of pouring system, temperature control system, forming parts and structural parts. The gating system and the moulded parts are in direct contact with the plastic and vary from plastic to product. It is the most complex and changeable part of the mold, requiring the highest smoothness and accuracy.

In order to get the product out of the mold, the mold must be divided into two parts: the male mold and the female mold. This interface is called the parting surface. It has the function of die parting and exhaust, but because of the difference of die precision and forming process, it is easy to produce burr and nodulation, which affects the appearance and accuracy of the product. When selecting the parting surface, pay attention to:

Do not affect the appearance of the product in a conspicuous position.

When opening the mold, place the product on the side with the release mechanism.

Located in mold processing and product post-processing for ease.

For products with high coaxiality requirements, try to design the cavity on the same side.

Avoid long core-pulling. If the core-pulling mechanism must be positioned on the positive side as much as possible, consider placing it in the die opening direction.

Generally do not use the arc part, will affect the appearance of the product.

For plastics with good fluidity and good overflow, the plug-in method should be used to prevent burrs.

For the products with high height and small demoulding capacity, the middle parting die can be used, both sides of the parting cavity for easy demoulding.

Thank you for reading, the above is the introduction of the basic knowledge of mold design, part of the content from the network, for reference only. If you want to know more about the precision mold processing details, welcome to call for detailed inquiries, dedicated to your service.