What is injection mold?

Injection molds are composed of many steel plates and various parts, generally including molding devices, positioning devices, cooling systems, constant temperature systems, runner systems, etc. According to the different pouring shapes of injection molds, we generally divide injection molds into the following three categories:

1. Direct gate injection mold: The runner and gate are on the parting line, and the mold is demoulded at the same time when the product is opened. The simplest design, easy processing, and lower cost are the choices of most people.

2. Fine nozzle injection mold: the runner and gate are directly on the product, which is more difficult to design, but it can better meet the needs of some products.

3. Hot runner injection mold: The runner is on the constant temperature hot runner plate, and the runner and gate are directly in the product chamber, so there is no need to demould. It is more economical to use raw materials, but the cost of the mold will be higher.

Injection molds can be recycled during the entire use process. During injection molding, the mold is installed on the injection molding machine, and then the plastic is injected into the mold for cooling and shaping. Separate the upper and lower molds and take out the preform. Therefore, the use of injection molds can greatly improve work efficiency and save costs.

Injection molding is a very common and widely used method in plastics processing. Using this method to make plastic products can realize the production of a large number of products, and the injection mold plays a very important role. Whether it is the production accuracy of plastic products, or the efficiency and cycle of the injection molding process, it is closely related to the injection mold. It can be said that the injection mold directly affects the quality of the product.