MATERIAL FORMING APPARATUS AND MATERIAL FORMING METHOD

• Main Author: CHEY, Suk Young
• Format: Patent
• Language: English; French; Korean
• Published: 12.08.2021
• Subjects: AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING; INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS; 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

A material forming apparatus according to an embodiment of the present invention comprises: a support which is positioned at a side of a forming tool with respect to a material arranged on the forming tool to have a first portion covered by the forming tool and a second portion separated from the forming tool, and which supports the forming tool; a diaphragm which presses the second portion of the material while the outer surface of the expanded diaphragm comes in close contact therewith, in a state in which the first portion of the material is compressed by the forming tool and the outer surface of the diaphragm; and a volume-varying member which is disposed near the forming tool between the diaphragm and the support so that at least a portion thereof is positioned on the second portion of the material, and which restricts the generation of wrinkles on the material and allows the second portion of the material to approach the forming tool according to the continuous expansion of the diaphragm in a state in which the second portion of the material is compressed onto the surface of the volume-varying member by the diaphragm and the second portion is compressed by the diaphragm and the volume-varying member. Un appareil de formation de matériau selon un mode de réalisation de la présente invention comprend : un support qui est positionné sur un côté d'un outil de formage par rapport à un matériau disposé sur l'outil de formage pour avoir une première partie couverte par l'outil de formage et une seconde partie séparée de l'outil de formage, et qui supporte l'outil de formage ; un diaphragme qui presse la seconde partie du matériau tandis que la surface externe du diaphragme dilaté vient en contact étroit avec celle-ci, dans un état dans lequel la première partie du matériau est comprimée par l'outil de formage et la surface externe du diaphragme ; et un élément de variation de volume qui est disposé à proximité de l'outil de formage entre le diaphragme et le support de telle sorte qu'au moins une partie de celui-ci soit positionnée sur la seconde partie du matériau et qui limite la génération de rides sur le matériau et permet à la seconde partie du matériau d'approcher l'outil de formation en fonction de la dilatation continue du diaphragme dans un état dans lequel la seconde partie du matériau est comprimée sur la surface de l'élément de variation de volume par le diaphragme et la seconde partie est comprimée par le diaphragme et l'élément de variation de volume. 본 발명의 실시예에 따른 소재 성형 장치는 성형툴에 의해 커버되는 제1 부분과, 성형툴로부터 벗어난 제2 부분을 가지도록 성형툴에 대해 배치된 소재를 기준으로, 성형툴 측에 위치하며 성형툴을 지지하는 지지체; 소재의 제1 부분이 성형툴과 격막의 외면에 의해 압착된 상태에서, 팽창되는 격막의 외면이 소재의 제2 부분에 밀착되며 가압하는 격막; 그리고 적어도 일부가 소재의 제2 부분 상에 위치하도록 격막과 지지체 사이의 성형툴의 인근에 배치된 부피 가변 부재로서, 격막에 의해 소재의 제2 부분이 부피 가변 부재의 표면에 압착되며, 제2 부분이 격막 및 부피 가변 부재에 의해 압착된 상태에서 격막이 계속 팽창됨에 따라, 소재에 주름의 발생이 억제되며 소재의 제2 부분이 성형툴 측으로 근접하도록 하는 부피 가변 부재를 포함한다.