A method of manufacturing household goods using waste vinyl and waste plastic

• Main Authors: SHIN, SUNG SICK, NAMKOONG UGSEOB, LEE MYUNG JAE, KIM JIHYOUK
• Format: Patent
• Language: English; Korean
• Published: 22.10.2021
• Subjects: AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING; DISPOSAL OF SOLID WASTE; MAKING GRANULES OR PREFORMS; PERFORMING OPERATIONS; PREPARATION OR PRETREATMENT OF THE MATERIAL TO BESHAPED; RECLAMATION OF CONTAMINED SOIL SOIL; 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

The present invention relates to a manufacturing method of household goods using waste vinyl and waste plastic and, specifically, to a manufacturing method of household goods using waste vinyl and waste plastic that not only facilitates molding when molding household or industrial goods by extrusion-melting various waste vinyl and waste plastics but also makes post-processing very simple. The manufacturing method of household goods using waste vinyl and waste plastic of the present invention comprises: a melt-extrusion step (S2) of putting waste vinyl and waste plastic into a melt-extruder and discharging the same in a gel form; a molten resin input step (S3) of injecting the gel-type resin into a cavity; a press molding step (S4) in which a product upper central core (1240) presses the gel-type resin in a lower mold (1100); a protrusion cutting step (S5) in which, after a certain period of time, a pressure molding and cutting ring (1280) descends along the outer circumferential surface of a product upper edge core (1270) by a product pressure cutting operation means (1290) to be in close contact with the upper surface of a second cavity plate (1150) and cut unnecessary protruding parts; a pressure molding step (S6) in which the product upper central core (1240) and the product upper edge core (1270) press a molded product (S); a mold separation step (S7) in which upper and lower molds are separated and open upwards; a molded product ejection step (S8) in which the product upper edge core (1270) pushes the recycled molded product (S) toward the lower mold (1100); and a product take-out step (S9) of taking out the molded product from the lower mold when the mold separation step is completed. 본 발명은 폐비닐 및 폐플라스틱을 이용한 생활용품제조방법에 관한 것으로, 특히 다양한 폐비닐 및 폐플라스틱을 압출용융하여 생활용품 또는 산업용품의 성형시 성형이 용이할 뿐만 아니라, 후가공도 매우 간단하도록 된 폐비닐 및 폐플라스틱을 이용한 생활용품제조방법에 관한 것이다.본 발명의 폐비닐 및 폐플라스틱을 이용한 생활용품제조방법은, 폐비닐과 폐플라스틱을 용융압출기에 투입해 겔 형태로 토출하는 용융압출단계(S2)와, 겔형태 수지를 캐비티에 투입하는 용융수지투입단계(S3)와, 제품상부중심코어(1240)가 겔 형태 수지를 하부금형(1100)에서 가압하는 프레스성형단계(S4)와, 일정시간후 제품가압커팅작동수단(1290)에 의해 가압성형 및 커팅링(1280)이 제품상부테두리코어(1270)의 외주면을 따라 하강해 제2캐비티플레이트(1150)의 상부면에 밀착되어 불필요 돌출 부분을 잘라내는 돌출부분커팅단계(S5)와, 제품상부중심코어(1240)와 제품상부테두리코어(1270)가 성형제품(S)을 가압하는 가압성형단계(S6)와, 상,하부금형이 분리되어 상부로 벌어지는 금형분리단계(S7)와, 제품상부테두리코어(1270)가 재활용 성형제품(S)을 하부금형(1100)쪽으로 밀어내도록 된성형제품이젝트단계(S8)와, 금형분리단계가 완료되면 성형제품을 하부금형에서 축출하는 제품축출단계(S9)를 포함한다.