MULTI-CORE STRUCTURE FOR INJECTION MOLD

• Main Authors: HAN, JAE MOON, MYOUNG, YOUNG DAE, LEE, HYOUNG IN
• Format: Patent
• Language: English; Korean
• Published: 11.12.2013
• Subjects: AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING; PERFORMING OPERATIONS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR; SHAPING OR JOINING OF PLASTICS; TRANSPORTING; WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

The present invention relates to a core replace type mold which is formed in order to replace a core of a mold, wherein the core is directly related to the shape of a product and, more specifically, to a multicore structure for an injection mold which can be used in at least two products with a single core by designing the shape of an injection product on at least two faces of the core so that the single core is used in various types. The present invention comprises a nut hole which fixes a core mass to a core pocket formed at the molding block of the injection mold. The core mass comprises: a bolt hole in order to be connected to the molding block with a bolt; pattern surfaces which contain molding patterns on the both sides in which the bolt hole is penetrated; a fix block which is integrally fixed and combined to the molding block by using the bolt; and a pattern core block which is formed so that the pattern surface selected by a user according to necessity is carved on the product by forming a different pattern on each pattern surface. In the fix block, a groove for connecting the pattern core block is formed on one surface of the fix block in a horizontal direction type or a vertical direction type and a cross type in which the horizontal direction type and the vertical direction type are combined. In the pattern core block, a combination protrusion which corresponds to the groove and is combined to the groove is formed on one surface, and pattern surfaces are formed on the crossed two surfaces or four surfaces. Thereby, the present invention does not need to manufacture multiple cores, does not keep the multiple cores and has an effect of improving productivity and facilitating treatment by easily responding to at least two specification changes on the product.