Plastic injection molding is a manufacturing process for producing parts by injecting material into a mold. Plastic processing machinery and plastic extrusion machinery are used in plastic injection molding industries. After100 years of development, plastic extrusion has gonefrom single screw to twin-screw, multiple screw (or no screw) to other more advanced processes. Plastic processing machinery requires versatility and precision. Through customized solutions, ABB plastic processing machinery is offered in a complete range of packages that include AC and DC motors, drives, controls and engineered safety features.
Specific AC and DC motor and drive solutions can be applied dependent on the type of end plastic product being produced as well as the type and size of the extruder. Motor types typically used include AC induction (enclosed or laminated frame designs), DC, servo or permanent magnet. Variable speed drives are used for precise motor control and increased energy efficiency, as well as for environmental and cost reasons. Drives also provide dynamic torque limit for protection of the extrusion screw without speed or position feedback devices, resulting in lower initial investment and installation costs and higher operational reliability. Downstream machinery: Various types of downstream machinery may be present to facilitate necessary cooling, take-off and/ or other discrete handling of the extruded material, such as cut-to-length, slitting, stacking, coiling, etc. These are in general typical drive applications requiring drive performance characteristics ranging from speed or torque regulation to simple motor control.
Processes Of Equipment
Amelt pump is fed by a speed-regulated, pressure-controlled extruder which provides precise control of the molten plastic output flow, optimizing the consistency of the flow delivery rate. Precise tension control is vital for plastic film processing. The superior speed regulation of ABB drives maintains the tension within the established limits and the fast, accurate drive-to-drive line speed communication provides precise synchronization of take-off roll sets.Film must be wound under constant tension, requiring torque regulation of the winder motor, which must continually adapt to ever-changing roll diameters. This can be achieved either by using an ABB drive with winder software or integrating a separate PLC into the control system.
ABBs dynamic control of asynchronous and PM servo motors enables the rapid correction of load-side disturbances. ABB drives with direct torque control (DTC) provide speed and torque control without sensors.ABB plastic processing offers a full complement of products and technologies for design and delivery of solutions tailored to meet individual needs and optimize investment returns.
ABB plastic processing machinery is designed by vast global experience gained from many decades of implementing motors, drives, controls and complete systems across a wide variety of extrusion types including: sheet extrusion, film extrusion, blown film, coating, tube/hose/pipe, co-extrusion and compound extrusion. To learn more about ABB plastic processing machinery, visit the ABB Website. For ABB plastic processing machinery repair and replacement quotes, contact Precision Electric.