The working principle of plastic mould
The structure is usually composed of molding parts, gating system, guiding parts, pushing out mechanism, temperature regulating system, exhaust system and supporting parts.
The moving die part is mounted on the moving template of the injection machine, and can be moved with the mould system on the injection machine during the injection molding process. Start injection molding, mold closing system drives the movable die toward the fixed mold direction, and at the parting surface and the fixed mold of I, the accuracy of the mold oriented mechanism, a guide column and a guide column is opened holes in the fixed template guarantee. The movable mould and the fixed mould of after fixing groove in the template and fixed on the movable punch on the template structure and product shape and uniform size of closed cavity, the clamping force can be provided in the clamping system of injection molding process in the cavity of the lock, to avoid it to open up in the press under the force of the plastic melt. The injection from the nozzle in the plastic melt into the mold through the opening in the mainstream channel die central, then the sub channel and the goods to be poured into the mold cavity, the mold cavity is filled with melt and after packing, feeding and cooling, clamping system with moving die back reset, so that the dynamic model with two fixed mold opened from sub type surface. When the movable die back to a certain position, installed in the interior of the stripping mechanism will be in the clamping system in pushing device produced by the action of moving and die the other part, so the aggregate will products and runner and runner was the top of the runner off from their punch on one side of the driven mode in this, a complete injection molding process.
The material is usually made of plastic mould steel, and the common materials are carbon structural steel, carbon tool steel, alloy tool steel, high speed steel and so on. Injection molding processing usually apply only to thermal plastic products production, with production of injection molding of plastic products is very wide, from the daily necessities of life to all kinds of complicated machinery, electrical appliances, transport and other parts are used injection molding die, it is a kind of processing method is most widely used in the production of plastic products
First of all in the plastic injection machine bottom heating barrel heating melt, then the injection machine screw or plunger driven by the gating system of injection machine and mold nozzle into the mold cavity plastic molding cooling sclerosis strippingget products.
