Graphic analysis of injection molding production flow

Injection molding is a commonly used production process that can manufacture plastic products of various sizes and shapes, such as electrical housings, containers, toys, etc. In the injection molding process, there are several steps involved, such as plastic heating, injection molding, cooling, demoulding, etc. In this paper, the production process of injection molding is introduced in detail and analyzed.

1. Preparation of raw materials

Before injection molding, raw materials need to be prepared, and the common raw materials are plastic particles or plastic powder. These raw materials need to be quality tested and pre-treated by specific mechanical equipment, such as drying and mixing, to ensure the best processing quality and results. In the process of processing should try to avoid raw material pollution or moisture, to avoid the impact on product quality.

2. Preparation of injection molding machine

Injection molding machine is the core equipment of injection molding processing, its role is to melt raw materials into the mold. Before the operation of the injection molding machine, it is necessary to carry out the relevant inspection and maintenance, such as checking the temperature, pressure, speed and other parameters of the injection molding machine to ensure the normal operation of the injection molding machine. At the same time, it is also necessary to install the corresponding mold and adjust the operating parameters of the injection molding machine to ensure that the quality and size of the final product meet the requirements.

3. Injection molding process

In the injection molding process, the raw material needs to be added to the hopper of the injection molding machine, and the plastic in it is melted by heating and pressure. The molten plastic is injected into the mold through the nozzle of the injection molding machine to fill the cavity of the entire mold. After injection molding is completed, it is necessary to wait for a period of time to cool until the plastic cures. The cooling process can be accelerated by water cooling or other means. Finally, through various operations and shifts, the mold is removed from the injection molding machine, and the product is released under appropriate conditions.

4. Quality inspection process

In the production process, it is necessary to carry out quality inspection on the products to ensure that the quality of the products meets the requirements. Quality inspection can be carried out in terms of appearance, size, material strength, etc. Common quality problems include bubbles, shrinkage holes, foreign bodies, delamination and so on. If you find a problem, you can try to solve it by adjusting parameters, replacing materials, replacing molds, etc.

The injection molding production process consists of multiple steps and requires close attention to the details of each link to ensure the quality and efficiency of the product. By strengthening the management and optimization of each step, production efficiency can be improved, costs can be reduced, and the needs of different users can be met.