What are the classifications of thermoforming molds?

Thermoforming molds refer to the molds used in thermoforming. The cheapest is the plaster mold, followed by the electroplated copper mold, and the most expensive is the aluminum mold. The mold is drilled with small holes for vacuum adsorption of thermalized hard film to form thermoformed products. The plaster mold is mainly made of yellow thermoformed hand plaster powder; if the drawing is provided, the plaster material will be made according to the drawing data and requirements, and the mold will be completed by milling machine and by hand; The contour is vacuum formed into a vacuum cover, and then the plaster mold is reapplied, and the mold is modified; it takes about 2-4 days; the plaster mold is easy to make and the time is short, which is conducive to the modification of product packaging, and the price is low, but The durability is low, and it is easy to be damaged after a period of use, so the product transparency is poor; it is mainly suitable for products that require first-board confirmation and outer packaging transparency.

bakelite model

Imported heating materials, Nissan high-temperature tape and copper nails are used to make various bakelite molds, which have the characteristics of uniform heating and good sealing effect, and can be applied to various disc machines, Taiwan-made push-pull machines and automatic chain machines. Heat-sealed packaging of paper cards and blisters.

Electrolytic copper mold

According to the product design requirements, after the plaster mold is made, use the plaster mold to remove the vacuum cover, put the vacuum cover in the electrolytic tank, and when the surface reaches 0.5-0.8MM thick, inject the plaster into the mold, inject the vacuum air holes, and polish the surface of the mold It is smooth and ready to use; it takes about 3-5 days; it belongs to the metal mold type, so it is more durable, and the appearance and transparency of the products made by this kind of mold are better; Mold; mainly suitable for products with high requirements such as electronics, toys, stationery, cosmetics, automobile boutique…etc.

Alloy aluminum mold

According to the drawings or templates provided, the program is produced by programming software such as CAM, and the machining is completed by CNC machine tools, and then other positions such as air holes and undercuts are manually completed, and the mold is polished smooth. If there are special requirements, Teflon or sandblasting is also required. Made of aluminum materials such as ZL401, 6061 and 7075, this type of mold has high precision and the product outline and angle are more beautiful, and the durability is very high, and the price also belongs to the four types of molds; it is mainly suitable for electronics, Gifts, toys, medicine, stationery, etc. products with high requirements on appearance and size; in fact, alloy aluminum molds are high-volume and high-demand plastic molds, which are more durable than plaster molds, copper molds, and plastic molds. It has the advantages of saving time and electricity, high efficiency and low scrap rate.

heat sealing mold

The heat-sealing mold is made of copper or aluminum alloy, which is mainly aimed at the difficult problem of PET high-frequency heat sealing; the surface treatment is made of Teflon, which is aimed at PET sticking mold; Various patterns.

High frequency mold

The material of the high-frequency mold is crimping, the cutter is a laser knife, and the cutting edge is smooth without any burrs while tearing the material; the edge pattern is engraved by computer, the pattern is clear, and the size is uniform. Various patterns can be customized according to user requirements; the aircraft hole can be Manufactured according to the actual samples or drawings provided by customers; mainly used for welding of double bulbs (PVC or PETG).

knife punching die

Mainly used for punching and punching (round holes, aircraft holes and butterfly holes)

Note: Regardless of the molds used for thermoforming of knife molds and punching molds, plaster molds are the cheapest, followed by electroplated copper molds, and aluminum molds are the most expensive. The mold is drilled with small holes, which are used to vacuum heat the hard sheet to form a blister product.

A customer from Brazil, South America produces thermoformed egg trays, from 2 to 30 pieces. Among them, 25 and 30 egg trays need to be punched. Yiyou’s automatic thermoforming machine is used in large quantities to form, cut and punch in one piece. Products with small displacement are punched with a hydraulic press. Below you can see the hydraulic press punching thermoformed egg tray

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