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The Eight Categories Of Injection Molds
Goodyear Mold Co.,Ltd | Updated: Oct 17, 2017

The eight categories of injection molds

As a plastic injection you have to know the classification of injection molds, injection molds for the eight categories:

Single-type surface injection mold mold, the dynamic mode and fixed mold separately, so remove the plastic parts, said single-type surface mold, also known as double-plate mode. It is the most simple and most basic form of injection molds. It can be designed as a single-cavity injection mold according to need. It can also be designed into multi-cavity injection mold, which is the most widely used injection mold.

There are two sub-types of molds. Compared with the single-part injection molds, the double-part injection molds have been added to the middle plate which can be moved locally Called the activities of the gate plate, which is equipped with gates, runners and mold the other parts and components required), so also called three plates (moving template, the middle plate, set the template) injection mold, which is commonly used for pouring The middle plate in the single-cavity or multi-cavity injection mold, open mode, the middle plate in the fixed-mode guide column and set the template for a distance separation, in order to remove the two templates between the pouring system condensate system. Double-type surface mold mold structure is complex, the production cost is higher, the parts processing difficulties, generally not used for large or large plastic products molding.

Injection molded mold with lateral and core pulling mechanism When the plastic part has side hole or side concave, need to use the movement of the core or slider molding. After the injection molding, the movable die is first moved downward for a distance, and then the slanting section of the bending pin fixed on the fixed plate is forced to move outward, and the plunger of the mold releasing mechanism is pushed to push the push plate, Off the core.

Injection Molds with Movable Forming Parts Due to some special construction of plastic parts, it is required that the injection mold be provided with movable forming parts such as movable punch, movable die, movable insert, movable thread core or ring , In the stripping with the plastic parts can be moved out of the mold, and then separated from plastic parts.

Automatic thread unloading mold For threaded parts, when the automatic demoulding is required, a screw thread or ring can be set on the mold, a rotary mechanism with a mold opening or an injection molding machine, or a special The drive, driven by a threaded core or threaded ring, is removed from the plastic parts.

No flow injection mold: no flow injection mold refers to the use of convection for adiabatic heating method to keep the injection molding machine nozzle between a plastic cavity was molten state, so that the mold out of plastic parts without pouring system condensate The The former said adiabatic flow channel injection mold, the latter said hot runner injection mold.

Right angle injection mold: right angle injection mold is only applicable to the angle injection molding machine, and other injection mold is different from the mold in the molding process when the direction of the feed and open the vertical direction. His main channel is set on both sides of the moving pattern, and its cross-sectional area is usually the same, which is different from other molds used in the injection molding machine. In order to prevent the injection molding machine Nozzle and the main channel inlet and end of the wear and deformation, can be set to replace the flow channel inserts.

Injection Molding Molds on Molded Molds In most injection molds, the stripping devices are mounted on the side of the movable mold, which facilitates the operation of the ejector system in the open mold system. In the actual production, because some plastic parts by the shape of the restrictions, the plastic parts to stay in the mold side of the molding better, which makes the plastic parts from the mold out, it must be set in the mold side of the mold release mechanism