THREE-PLATE INJECTION MOLD AND METHOD FOR EXTRACTING MOLDED PRODUCT FROM THREE-PLATE INJECTION MOLD

摘要

The present invention relates to a three-plate injection mold comprising a movable mold and a fixed mold, wherein the movable mold comprises an upper core and a lower core in which an injected product is formed; and a method for extracting a product from an injection mold, and more specifically, to a three-plate injection mold and a method for extracting a molded product from a three-plate injection mold, capable of extracting injected products without generating burrs and being interfered by a runner, and in which the upper core is coupled with a first guide pin protruded on the frontal surface of the fixed mold so as to move along with the first guide pin in the forward and backward directions; in the front of the upper core, the lower core is coupled so as to move along with a second guide pin protruded towards the frontal surface of the upper core in the forward and backward directions; and an injected product is formed in a space formed as the upper core contacts the lower core. Hereupon: the injected product is formed in the space formed as the upper core and the lower core of the upper core contact each other; in the upper core (121), a mold surface on which the molded product (P) forms and a mold surface on which a runner forms are formed on opposite sides from each other; and a product extraction sliding plate (150) performs a discharge motion in the same direction as an injection liquid is injected and extracts the injected product by pushing the backside of the injected product. Accordingly, the product extraction sliding plate is made to operate in the same direction as the injection liquid is injected so that the injected product is extracted by pushing the backside of the injected product, and as a result, the three-plate injection mold and the method for extracting molded products from the three-plate injection mold of the present invention do not generate burrs nor cause interference with the product due to runner extraction and thus can produce high-quality products.;COPYRIGHT KIPO 2016