The way a plastic injection molding machine works

Posted on July 14, 2018 by

In general, horizontal type plastic injection machine consists of several parts of the unit and system, among others. 1. Mold Clamp Unit. This unit serves to move the Mold with the movement of open and close. This movement is divided into 3-speed settings and 1 additional setting, both for Closing and Open movement. In the meantime, you may also want to take a look at the excellent mould supplier near you.

Closing, movement consists of movement:

1. Slowly

2. Fast

3. Slowly and 4. Gripping Mold. As for the Opening movement consists of movement: 1. Removing the Mold Cekam

2. Slowly

3. Fast

4. Slowly. Then proceed with the Ejector movement to push the Product out of Mold, ie from the Core side. See the Mold Clamp Unit here.

At the time of Grip Mold, the Machine must be able to withstand the Open Force when the injection process takes place. Because the injection process is also a considerable Hydraulic power. If the machine is unable to withstand, the Mold will be slightly exposed so that the plastic liquid material will be lumber from the mold. There are two types of Mold Clamp Unit, namely Straight Hydraulic Type and Toggle Type consisting of a series of rods, whether supported by Hydraulic System or Servo Motor System [Mechatronic]. By using the same basic formula, namely: F = P x A. Where F is Force in kg or ton, P is Hydraulic Pressure in units of kg / cm², and A is Area of Area [Area] in units of cm². So we divide 2 into F1 and F2. So F1 = P1 x A1. For F1 is Cekam Mold Style, P1 is a Hydraulic Pressure Setting, and A1 is Hydraulic Cylindrical Cylinder Section of Machine. And: F2 = P2 x A2. For F2 is the Molding Style When the Injection Process is in progress, P2 is the Injection Pressure Setting, and A2 is the Product Coverage Area as a whole with the direction of pressure which leads to Opening Mold. Then: The result of the calculation of F1 must be bigger than the result of calculation of F2. Usually, the engine type number refers to the maximum calculation of F1.

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