This article will introduce the common faults of hollow blow molding machines and their solutions.
There are many reasons for the unstable discharge of hollow blow molding machines, including the following:
The temperature is low when the machine is turned on and cannot meet the standard;
The temperature of the extruder or die head is unstable;
The rubber is stuck at the screw;
The back pressure is too low;
The filter is blocked.
Solution: Check and adjust the above components to ensure that all parameters meet the standards.
Uneven distribution of product wall thickness
Uneven distribution of product wall thickness is a common problem, which is usually related to cooling and processing time. When the temperature and heating temperature are uneven, or the cooling is insufficient, the wall thickness distribution of blow molding will be affected.
Solution: Adjust the tube wall control of the hollow blow molding machine to ensure uniform temperature and cooling to reduce the frequency of faults.
Unable to add material
The inability to add material may be due to the battery being in a load state, affecting the equipment feeding, and in severe cases, the hollow blow molding machine cannot produce products normally.
Solution: Check the battery status and equipment load to ensure that the equipment can feed normally.
Precautions for daily operation
In order to reduce the failure of hollow blow molding machines, the following points should be noted in daily operation:
Under permitted conditions, accelerate the extrusion rate of the parison and reduce the waiting time of the mold to reduce the deadweight droop of the parison;
On the premise of ensuring that the product is fully cooled, try to shorten the molding cycle;
Ensure that the blowing pressure meets the requirements and the blowing rate is fast;
Control and adapt the temperature and speed of the extruder to ensure the quality of the parison and the product.
Advantages of Sentis Blow Molding Machine
Sentis blow molding machine adopts PLC plus human-machine interface and touch operation. It has the following advantages:
Fault alarm self-diagnosis: clear at a glance, easy to solve problems in time;
Storage die head: the flow channel is made of high-quality nitrided alloy steel, and the surface is mirror-finished;
Hydraulic system dual proportional control: equipped with imported hydraulic components, precise, stable and energy-saving;
High-speed, high-efficiency and low-energy consumption plasticizing system: excellent mixing and uniformity to ensure the purity of the product;
Multiple optional functions: such as blow lifting, encapsulation, support, rotation, sub-mold, Manipulator, wall thickness control, etc., to meet the process requirements of different products. SENTIS continues to be committed to improving product quality and service levels, providing customers with efficient, stable and energy-saving blow molding machine solutions.
