Five major classifications of plastic molds for cosmetic packaging materials

Cosmetic plastic mold, is the plastic processing industry and plastic molding machine supporting, give plastic products to the complete configuration and precise size of the tool. According to the different molding methods, can be divided into different types of molds.

Mold, industrial production for injection molding, blow molding, extrusion, die casting or forging molding, smelting, stamping and other methods to get the required products of various molds and tools. In short, the mold is used to make molded items of tools, this tool consists of a variety of parts, different molds are composed of different parts. It mainly realizes the processing of the shape of the item through the change of the physical state of the material being molded.

01Injection Mold

It is mainly a thermoplastic plastic products in the production of the most common application of a molding mold, injection mold corresponding to the processing equipment is the injection molding machine, the plastic is first in the bottom of the injection molding machine heated cylinder by the heat of the melt, and then in the injection molding machine under the impetus of the screw or plunger, the injection molding machine through the nozzle and the mold of the injection molding machine pouring system into the mold cavity, the plastic cooled and hardened to shape, molding to obtain the product.

Its structure usually consists of molding parts, pouring system, guiding parts, launching mechanism, temperature adjustment system, exhaust system, support parts and other parts, manufacturing using cosmetic plastic mold steel. Injection molding processing method is usually only applicable to the production of thermoplastic products, with injection molding process to produce a wide range of plastic products, from daily necessities to all kinds of complex electrical appliances, automotive parts and so on are molded with injection molds, it is the production of plastic products in the production of the most widely used a processing method.

02 Blow Mold

Used to mold plastic containers hollow products (such as beverage bottles, daily necessities and other packaging containers) of a mold, blow molding form according to the principle of the process is mainly extrusion blow molding hollow molding, injection molding form according to the principle of the process is mainly extrusion blow molding hollow molding, injection blow molding hollow molding, injection extension blow molding hollow molding (commonly known as injection pull blowing), multi-layer blow molding hollow molding, sheet blow molding hollow molding and so on. Blow Molding

Blow molding of hollow products corresponding to the equipment is usually called plastic blow molding machine, blow molding is only applicable to the production of thermoplastic varieties of products. The structure of the blow mold is relatively simple, and the materials used are mostly made of carbon.

03Extrusion Mold

Used to mold the production of continuous shape of plastic products of a class of molds, also known as extrusion molding head, widely used in pipes, rods, monofilament, sheet, film, wire and cable coverings, profiles and other processing.

Its corresponding production equipment is a plastic extruder, the principle is that the solid plastic in the heating and extruder screw rotating under pressure conditions melt, plasticize, through a specific shape of the mouth of the die and made of cross-section and the shape of the mouth of the die the same shape of the continuous plastic products. Its manufacturing materials are mainly carbon structural steel, alloy tooling, etc. Some extrusion molds in need of wear-resistant parts will also be inlaid with diamond and other wear-resistant materials.

Extrusion process is usually only applicable to the production of thermoplastic products, its structure and injection molds and compression molds have obvious differences.

04Blister mold

Plastic plate, sheet material as raw material molding some simple plastic products of a mold, its principle is the use of vacuum bloom method or compressed air molding method to make fixed in the concave mold or convex mold plastic plate, sheet, in the case of heating and softening of deformation and affixed to the cavity of the mold to get the required molded products, mainly used in the production of some daily necessities, food, toys, packaging products.

Blister mold for molding pressure is low, so the mold material is mostly used cast aluminum or non-metallic materials, the structure is relatively simple.

05Pressure mold

Including compression molding and pressure injection molding two types of structural molds. They are mainly used to mold thermosetting plastics of a class of molds, its corresponding equipment is pressure molding machine.

Compression molding method according to the characteristics of the plastic, the mold will be heated to the molding temperature (generally in 103 ° 108 °), and then measured pressure plastic powder into the mold cavity and charging chamber, close the mold, the plastic in the high heat, high-pressure action is soft viscous flow, after a certain period of time after the curing stereotypes, to become the desired shape of the product.

Pressure injection molding and compression molding is different from no separate charging chamber, mold closed before molding, plastic in the charging chamber to complete the preheating was viscous flow state, adjusted under pressure squeezed into the mold cavity, hardening and molding.

Pressure mold is mainly composed of cavity, charging chamber, guiding mechanism, launching parts, heating system and so on. Pressure injection molds are widely used in the encapsulation of electrical components. The materials used in the manufacture of compression molds are basically the same as injection molds.