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Reasons and solutions for too little extrusion volume of high-speed injection molding machine

Release time:

Aug 24,2021

The first reason is that the cold air has been on for a long time, causing the mold surface to be too cold. At this time, we have to check whether the rubber at the exit of the die surface has been pl

The first reason is that the cold air has been on for a long time, causing the mold surface to be too cold.

At this time, we have to check whether the rubber at the exit of the die surface has been plasticized and melted.

The second reason is that the boot temperature is too low.

At this time, it is necessary to check whether the temperature of each part of the extrusion barrel and the die meets the standard requirements? Although the outside temperature of each part reaches the standard, if the heating time is not enough, the inside and outside temperatures will be inconsistent; check whether there is a heater or thermocouple damaged? If any electrical components are damaged, repair or replace them immediately.

The third reason is that the temperature of the extrusion barrel or die is too high, the screw and barrel of the melting section are worn, the screw is carbonized, and the feeding is not smooth.

Check the sensitivity of the temperature controller and deal with it appropriately. The die head temperature controller should be of higher sensitivity.

The fourth reason is that the transmission belt is loose or detached.

The old transmission belt should be replaced immediately, and an idler pulley should be installed if it can be used to adjust the belt tension to prevent the belt from slack and fall off again.