![]() In the process of designing and producing of the blow molding machine, Yankang Plastic Machinery adopt: The blow molding machine with good performance is a widely adopted control system with high accuracy.įuzzy control, statistical process control (SPC), and network-based remote monitoring and fault diagnosis control systems are used in some high-precision plastic machinery. ![]() The level of plastic blow molding processing machine depends largely on the level of control. In order to achieve better results, you can refer to MOOG Controller: Correct Setting of Core Clearance Its independent parison wall thickness control system provides a 30-point and 100-point wall thickness controller (DIGIPACK), which can be used to control the parison wall thickness in blow molding.Įquipped with LCD display can display production status in real-time. Take MOOG Wall Thickness Controller as an example, many plastic blow molding machine manufacturers adopt MOOG control. The parison has come out before the servo cylinder can respond to the received signal. If there are too many control points, it will cause the responding speed too long. The fewer the number of control points, the faster the response speed.īut, the control points are too few, it’s hard to achieve the accuracy of parison wall thickness control, and form the weld seam around the parison. The method of parison wall thickness control in the blow molding machine is different.ĭividing several points during the molding process of each parison.Ĭontrol the parison wall thickness of these points separately. In addition to these control methods, the corresponding parison wall thickness controller can also be used to cooperate with the blow molding machine. There are many control methods for blow molding machines, right?įor example, profile mould, axial wall thickness control technology and radial wall thickness control technology and flexible ring technology, edge modification technology, embryo temperature difference method, the combination of vacuum suction and extrusion blow moulding, etc. How to achieve the parison wall thickness control in blow molding? Generally, there are several thermal expansion equipments installed on the circumference of the mould ring.Ĭontrol the interfacial gap of the mould at each point on the circumference to achieve the control effect of parison wall thickness in blow molding. Adjust expansion equipment temperature by the heater.īy the change of expansion volume at different temperatures, push forward the radial deformation of mould ring, change the size of mould gap, control the outflow at the mould, and change the parison wall thickness. The principle of parison wall thickness is heating the expansion equipment at the lateral mould ring of mould outlet. What is Parison wall thickness control in blow molding? About its principle?īlow molding process, the material is extruded from the gap of die head after plasticizing, molded by blowing and cooling. The parison wall thickness control is also helpful to improve the performance of plastic blow moulding machinery. Naturally, the technology of parison wall thickness control in blow molding is needed. If customers want to produce multi-layers blow molding products, it involves the uniformity of every layer wall thickness. The requirement of layers is related to the parison wall thickness. Such as different capacities, different shapes, purpose, layers, and so on. Now, the customer’s requirements for blow molding products are becoming more and more diverse. ![]() So, parison wall thickness control in blow molding is important.įor a plastic blow molding machine manufacturer: The wall thickness of the parison is more uniform and stable, the blow molding product is more strong and wearable, the quality is better. ![]() So, during the production process, to ensure the quality of blow molding products, it requires the parison wall thickness can accurately track the setting value and the responding speed of tracking is fast enough. The parison wall thickness of blow molding products is also a major factor to measure quality. Minimum parison wall thickness is specified for the blow molding container products due to its strength requirements. Why parison wall thickness control in blow molding is important?īlow molding technology is to make the plasticized parison close to the inner wall of mould by air pressure. This blog will give a detailed introduction to this problem. So, how much do you know about parison wall thickness control in blow molding? To a certain extent, it affects the quality of blow-molded products. Parison wall thickness control in blow molding is an important step during the production process.
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