The use and popularization of automation equipment have liberated labor, and the use of automation in enterprises can not only improve productivity, but also save time and costs. Today, we introduce injection molding automation equipment. Do you know the working principle of using injection molding automation equipment?

According to the requirements of injection molding technology, injection molding automation equipment is a highly mechatronic machine, mainly composed of injection molding components, clamping components, body, hydraulic system, heating system, control system, feeding device, etc.

The working principle of an automatic injection molding machine is similar to that of an injection syringe. This is a process in which plastic is injected into a closed mold cavity in a molten state (i.e. viscous flow state) under the thrust of a screw (or plunger), and the product is obtained after solidification and molding. Injection molding is a cyclic process, which mainly includes: quantitative feeding - molten plastic - pressure injection - mold cooling - mold extraction. Remove the plastic part and then close the mold for the next cycle.

Injection molding automation

Insert injection molding automation operation project: injection molding machine operation project includes three aspects: control keyboard operation, electrical control system operation and hydraulic system operation. Perform injection process actions, feeding actions, injection pressure, injection speed, top type selection, temperature monitoring of each section of the material cylinder, injection pressure and back pressure adjustment, etc. separately.

Automated injection molding for embedded parts utilizes the thermophysical properties of plastic to add materials from the hopper to the barrel. The material is heated through a heating ring to melt. Under the action of an external power motor driving the rotating screw, the material is fed and compacted along the screw. Under the dual action of external heating and screw shearing, the material gradually becomes plastic, melts, and becomes uniform. When the screw rotates, The material melts into the screw head under the action of slot friction and shear force.

At the same time, the screw retreats under the reaction of the material, creating a storage space for the screw head and completing the injection molding automation process. Then, under the action of the injection cylinder piston thrust, the screw injects the molten material in the storage tank into the mold cavity through a nozzle at high speed and pressure. After the molten material in the mold cavity is pressurized, cooled, solidified, and formed, the mold opens under the action of the clamping mechanism, and the formed product is ejected from the mold through an ejection device.