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How is the effect of the plastic hollow molding machine

Energy saving is the primary development direction of hollow molding machines, especially plastic hollow molding machines. In our country, the plastic hollow molding machine mainly refers to the hollow molding machine from 200L to 1000L. The structure, control system and power system of plastic hollow molding machines are different from those of small and medium-sized hollow molding machines, and their energy-saving skills are also different. The purpose of the application and development of energy-saving skills is to improve product quality, reduce product costs, and improve social benefits. Today, the editor will introduce to you how the effect of the plastic hollow molding machine is.

Key points of energy-saving skills for plastic hollow molding machines.
The plastic hollow molding machine is mainly used to form the IBC (Intermediate Bulk Container) installation barrel. The plastic hollow molding machine mainly includes components such as extrusion and plasticization organization, clamping organization, die head, inflation system, product removal equipment, power transmission system, and wall thickness control system.

This machine selects hollow plastic extrusion blow molding" criterion, the plasticizing extruder of granular or powdered plastic is melted to the nose, when the storage capacity of the nose reaches the predetermined value, the mold is opened, and the electrical control system is based on the parison wall thickness curve Set the size of the distance between the mold and the mold, a little more parison wall thickness control, and the injection cylinder to extrude the melt, the parison mold product composition, after the mold of the hollow product is blow-molded, it is opened after cooling, by The manipulator takes out the product. Through the electric drive, clamping the organization and the cylinder wall thickness control cylinder drive hydraulic system to drive the extrusion and plasticization of the organization. The extruder can become one or more extruders according to the extrusion rate, function and planning requirements The main characteristics of plastic hollow products are large extrusion rate and extrusion volume, long cooling time of the product, and control of the wall thickness of the blank by multiple points.

Energy-saving skills are mainly developed from three aspects: plasticization organization, mold closure organization, injection molding system, and power transmission system. This is the key to energy saving for plastic hollow molding machines. Energy-saving hydraulic drive system. With the development of the injection molding process and the improvement of the control function, the energy-saving technology of dual control flow ratio and pressure ratio has been developed. The share valve completes stepless and flexible adjustment, and shows energy-saving function together. However, because of the use of fixed-quantity pumps for fuel supply, during the operation, especially during the cooling process, there is always activity-related energy loss, and this part of the activity energy consumption is the largest. The application of this system improves the automatic control skills and forming functions. It has obvious energy saving effect in the hollow molding process, and has certain advantages in energy saving and consumption reduction.


The frequency conversion energy-saving hydraulic drive system is an important scientific and technological advancement for the energy-saving of IBC hollow molding machines in recent years. The most obvious feature of the energy-saving hydraulic drive system of IBC hollow molding machine is the use of frequency conversion energy-saving technology, and the energy-saving rate can reach 25-65%. Frequency conversion energy saving has been widely used in energy saving transformation. Frequency conversion energy saving is to change the power frequency, change the motor speed, so that the output of the oil pump can match the working conditions, so that the oil return of the safety valve is minimized, and the power required to match the output power is produced, and then the intention of energy saving is achieved. For single-station plastic hollow molding products, because the cooling time is longer, the energy-saving effect is particularly significant.