Plastic Mold Making

Plastic Mold Making: How do you make a plastic mold?

Mold cavities are filled with melted plastic that is pumped into the mold. The parts are expelled by pins after the mold has cooled. We can understand that when you want to make a shaped lollipop, pour the hot melted syrup into the mold, and then it can be de-molded by cooling. This is Plastic Mold Making Processing.

The Plastic Injection mold making is made of the cavity mold and core mold. We usually fix the cavity mold on the fixed plate of the injection molding machine, and the core mold on the moving plate of the injection molding machine. During plastic mold making, the cavity mold and the core mold are closed to form a gating system and a cavity. When the mold is opened, the cavity mold and the core mold are separated, and we take out the plastic products from the core mold.

What points should be noticed when plastic mold making

1.Determine the parting line of the mold

2.Determine the direction of the mold opening

3.Designing appropriate demoulding slope

4.The wall thickness of the designed product is best kept at 0.5-4mm

5.Noted that the thickness ratio of the reinforcing ribs is less than or equal to the thickness of the product

6.Setting the reasonably rounded corners

7.The shape of the designed hole is generally round, and the long diameter of the blind hole doesn’t exceed 4

8.Pay attention to the one-piece hinge

9.Inserts can be inserted into the injection mold to increase local strength

10.Designing the buckle device to be shared by multiple buckles at the same time

What is the difference between tooling and Die-casting?

The main difference between plastic mold making and die-casting molds is their different molding materials. The material used in plastic molds is plastic, while the material used in die-casting molds is metal.

*Plastic Mold Making advantage:

1. Plastic mold making is usually used for injection molding plastic products, which are usually used in the medical industry, automotive industry, industrial electronics consumer plastic parts.

2. Injection parts have the advantages of being lightweight, high strength, good toughness, corrosion resistance, good insulation, easy coloring, easy molding, low cost, etc., and can replace most metal parts.

3. Plastic mold making can improve production efficiency, ensure product quality, reduce costs, and reduce labor intensity, which are superior to metal parts, so they are favored by all walks of life.

*The Die-casting mold advantage:

1. The quality of the products produced by the die-casting mold is good. Because the die-casting mold conducts heat quickly, the metal cools quickly, and at the same time crystallizes under pressure. The die-casting part has a fine-grain structure and a solid surface, which improves the strength and hardness of the die-casting part. In addition, the die-casting part is dimensionally stable and interchangeable, it can produce thin-walled complex parts.

2. High productivity of die-casting casting, good die-casting mold can not only die-cast precision die-casting parts but also increase the number of times the mold is used.

3. The economic benefits are good, because the machining allowance of die-casting parts is small, and it can generally be used only by finishing and reaming, thus saving a lot of raw materials, processing equipment, and man-hours.

What are the factors that affect the price of plastic mold making?

1. The first look at the customer’s requirements and product requirements, because these requirements determine the choice of materials and heat treatment processes.

2. After confirming the material, draw a simple mold plan, calculate the weight of the mold, the price of the material of the mold core and the material of the mold base, and the cost of heat treatment (the selection of materials and the process of heat treatment will have a greater impact on the price).

3. Calculate the processing cost according to the complexity of the inner mold (the appearance of the product determines the processing technology, the higher the requirements, the more expensive and the processing fee).

4. Determine the monthly output and annual output of plastic parts.

5. The number of holes in the mold, and how many holes are made for the product at a time.

6. The location of the feeding port.

7. Whether the product needs post-processing.

8. Labor costs.

9. Trial Mold fee.

10. The way of transportation.