Film clip and film stretching apparatus including the same for manufacturing separation membrane

• Main Author: SHIN TAE YONG
• Format: Patent
• Language: English; Korean
• Published: 07.01.2021
• Subjects: AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING; INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULARARTICLES; 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 film clip capable of stably holding both side units of a film in a film stretching process for manufacturing a separation membrane. In the film clip, a flap unit is not directly coupled to a spring and an inner surface thereof is in contact with the middle of the spring so that elastic force is applied, thereby preventing the spring from breaking according to the repetition of the film holding and holding release action of the flap unit, and thus increasing the efficiency of a film stretching process. 분리막 제조를 위한 필름의 연신공정에서 필름의 양측부를 안정적으로 파지할 수 있는 필름클립이 제공된다. 필름클립은 플랩유닛이 스프링에 직접 결합되지 않고 그 내측면이 스프링의 중단에 접촉되어 탄성력이 인가되도록 함으로써, 플랩유닛의 필름 파지 및 파지 해제 동작의 반복에 따라 스프링이 파단되는 것을 방지하여 필름 연신공정의 효율을 높일 수 있다.