What are the working principles of the classification and injection molding machine?

We all know that injection molding machine is the primary molding equipment for thermoplastic or thermosetting plastics to manipulate plastic molding molds into various shapes of plastic products.

So what is the truth of the injection molding machine? The following analysis:

First, the truth of the injection molding machine.

Injection molding machine referred to as injection molding machine.

Injection molding is to manipulate the thermal physics of plastic, the material from the hopper to the cylinder, the cylinder by the heating ring heating, so that the material melt, in the cylinder is equipped with outside the power motor under the influence of the screw drive torsion, the material under the influence of the screw;

Transported along the spiral groove and compaction, material in plus heat and screw shear gradually under the dual influence of plasticizing, melting and homogenization, when the reverse screw, the material in the screw groove friction force and shear force, under the use of pushing has molten material to the screw head, at the same time, screw the material under the influence of retreat retreat, make screw head constitute a material storage space, complete the plasticizing process;

Then screw in the injection cylinder piston thrust for use, with high speed, high pressure, will store the molten material through the process of material interior nozzle injection into the mold cavity, cavity of molten material course after the pressure maintaining and cooling, curing finalize the design, mold in the clamping mechanism, under the influence of open mould, and through the ejector assembly and through the ejector assembly process to finalize the design finished sets out from the mold.

Second, what is the classification of injection molding machine?

According to the mold parts and injection parts, there are three types of equipment arrangement: horizontal, vertical and Angle

1. Horizontal injection molding machine:

The horizontal injection molding machine is the most commonly used example. The characteristic is that the middle line of the injection assembly and the middle line of the die assembly are aligned or divergent, and parallel to the mounting air. Its advantages are low center of gravity, work stability, mold installation, operation and maintenance are more convenient, the mold open file is large, the height of space occupied is small; But account for the air volume is large, large, medium and small machines are widely used.

2, vertical injection molding machine:

Its characteristic is that the axis of die assembly and injection assembly is arranged in a line and perpendicular to the air. It has the advantages of small volume in the air, convenient assembly and disassembly of the mold, easy installation of embedded parts, stopping plasticizing more evenly when the hopper falls into the material, easy realization of active and multi-machine active line processing, etc. The weakness is that the top out of the finished product is not easy to take the initiative to fall off, often need wild or other ways to take out, is not easy to achieve full active manipulation and large finished product injection.

3. Angle injection molding machine:

The axes of injection assembly and die assembly are arranged vertically. According to the relative position of the middle line of the injection assembly and the base surface of the installation, there are horizontal, vertical and horizontal types: 1) horizontal, the injection assembly line is parallel to the base surface, and the middle line of the die assembly is vertical to the base surface; 2) vertical horizontal, the middle line of the injection assembly is perpendicular to the base plane, and the middle line of the die assembly is parallel to the base plane. Angle injection machine has the advantages of both horizontal and vertical injection machine, especially for opening the side gate of the mold of asymmetric geometric shape products.