APPARATUS FOR MAKING THE PREFORM

The present inventor relates to a preform molding apparatus comprising: a preheating unit which preheats a preform to make a thermoplastic resin contained in the preform semi-solid; a molding unit including an upper mold and a lower mold having a shape corresponding to a molded product in order to t...

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Bibliographische Detailangaben
Hauptverfasser:	KANG CHANG SOO, SHIN HON CHUNG, CHAE BYUNG GEUN
Format:	Patent
Sprache:	eng ; kor
Schlagworte:	AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING MAKING GRANULES OR PREFORMS PERFORMING OPERATIONS PREPARATION OR PRETREATMENT OF THE MATERIAL TO BESHAPED RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIALCONTAINING PLASTICS 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
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Beschreibung
Zusammenfassung:	The present inventor relates to a preform molding apparatus comprising: a preheating unit which preheats a preform to make a thermoplastic resin contained in the preform semi-solid; a molding unit including an upper mold and a lower mold having a shape corresponding to a molded product in order to transform the preheated preform to a shape of the molded product, wherein the upper mold consists of a plurality of pieces; a heating unit for melting or curing a resin contained in the preform by heating the molded preform; and a cooling unit for cooling the heated preform. 본 발명인 프리폼 성형장치는, 프리폼을 예비적으로 가열하여 상기 프리폼에 포함된 열가소성 수지를 반고체상태로 만드는 예열유닛; 상기 예비 가열된 프리폼을 성형품의 형상대로 변형시키기 위해, 성형품에 대응하는 형상을 가진 상부몰드와 하부몰드로 구성되되, 상기 상부몰드는 복수개의 조각들로 구성된 성형유닛; 상기 성형된 프리폼을 가열하여 상기 프리폼에 포함된 수지를 용융시키거나 경화시키는 가열유닛; 및 상기 가열된 프리폼을 냉각시키는 냉각유닛을 포함하는 것을 특징으로 한다.