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What problems should be paid attention to when making injection molds

update:18-09-2020
abstract:

There are two templates on the injection molding machin […]

There are two templates on the injection molding machine, one is a fixed template; the other is called a mobile template. The molds are respectively fixed on two templates by screws and pressing plates. When the mold is opened, the movable template of the injection molding machine moves, thereby driving the mold to open. After the mold is completed, injection molding must be performed, and then the injection molding machine begins to impact the product.

However, there are many models of injection molding machines, and each model has its own parameters. The design of the mold must be able to meet the customer's requirements for the injection molding machine model, otherwise it will not be able to produce. There are many design parameters of the injection molding machine. The following focuses on several parameters related to the mold. I hope readers pay attention to the specific design of the mold.

When designing an injection mold, do you have to master the 4 parameters that must be paid attention to? Injection volume? The injection volume is the maximum mass value (or volume value) that the injection molding machine can spray at a time, and represents the maximum injection volume of this type of injection molding machine. The amount of melt used in the design mold is less than that of the injection molding machine. Otherwise, the product is not full and cannot be produced.

Clamping force? When the mold is closed, it is the pressing force of the injection molding machine on the template. The clamping force required for the molded product to be molded must be less than the rated clamping force of the selected injection molding machine. Otherwise, the glue will easily flow away from the parting surface, causing flash. When designing an injection mold, do you have to master the 4 parameters that must be paid attention to?

Tie rod spacing? There are four tie rods and a movable template in the injection molding machine. Their function is to ensure that the injection molding machine has sufficient strength and rigidity, and is responsible for the sliding of the template. However, since the mold is installed from the middle of the tie rod, the size of the mold is often limited. The size of the mold cannot be larger than the distance between the tie rods at the same time. If the length of the mold exceeds the distance between the rods, please check whether the mold is lifted into the rod workshop by rotating. If rotation is not possible, only the mold size can be changed. Or replace the injection molding machine.