What are the categories of injection (plastic) molds?

What are the categories of injection (plastic) molds?Injection molds are important tools for producing plastic products. They are mainly divided into: plastic part molds, box molds, bottle cap molds, injection molding molds, core molds, multi-cavity molds, and hot runner molds.

What are the categories of injection (plastic) molds?

Injection molds are important tools for producing plastic products. They are mainly divided into: plastic part molds, box molds, bottle cap molds, injection molding molds, core molds, multi-cavity molds, and hot runner molds.

According to different shapes, structures and uses, the following 7 categories of injection molds are introduced in detail:

(1) Plastic part molds: This is the most common type of injection mold, used to produce various plastic parts, such as electronic product housings, home appliance accessories, and automotive parts. According to the shape and size of the parts, plastic part molds can be further subdivided into flat molds, inclined top molds, side pull molds, core insert molds, etc.

(2) Box molds: Box molds are mainly used to produce various plastic boxes, such as storage boxes, transport boxes, packaging boxes, etc. Box molds usually have larger sizes and complex structures, and the strength, sealing and assembly requirements of the box need to be considered.

(3) Bottle cap molds: Bottle cap molds are used to produce various plastic bottle caps, such as beverage bottle caps and cosmetic bottle caps. Bottle cap molds usually have high-precision and high-speed production requirements, and the sealing, opening force and molding cycle of the bottle cap need to be considered.

(4) Injection molding molds: Injection molding molds are used to produce various injection molded products, such as plastic cups, plastic bowls and plates, plastic chairs, etc. Injection molding molds usually have large sizes and complex structures, and the appearance quality, strength and production efficiency of the molded products need to be considered.

(5) Core molds: Core molds are used to produce hollow or internally structured plastic products, such as pipes, containers, toys, etc. Core molds usually consist of a core and a cavity, and the positioning, cooling and demolding requirements of the core need to be considered.

(6) Multi-cavity molds: Multi-cavity molds can produce multiple identical or different plastic products at the same time, improving production efficiency and capacity. Multi-cavity molds usually have complex structures and high-precision requirements, and the balance and consistency between each cavity need to be considered.

(7) Hot runner molds: Hot runner molds use a heating system to directly feed molten plastic into the mold cavity, reducing cooling time and plastic waste, and improving production efficiency and product quality. Hot runner molds are usually suitable for high-demand injection molded products, such as optical lenses, electronic components, etc.

In addition to the above common types of injection molds, there are also some special-purpose molds, such as two-color molds, gas-assisted molds, adhesive injection molds, etc. These molds adopt special structural design and processing technology according to different production requirements and process characteristics.

In summary, injection molds can be classified according to different shapes, structures and uses, including plastic parts molds, box molds, bottle cap molds, injection molding molds, core molds, multi-cavity molds and hot runner molds. Each type of mold has its specific design and manufacturing requirements to meet different injection molding production needs.