Synthetic plastics article manufacturing system

Details Synthetic plastics article manufacturing system Synthetic plastics article manufacturing system

B - Operations, Transporting

29

C

18/796, 18/914

B29C 31/00 (2006.01) B29C 51/04 (2006.01) B29C 51/14 (2006.01) B29C 51/22 (2006.01) B29C 51/26 (2006.01) B29C 57/12 (2006.01) B41F 17/28 (2006.01) B29C 47/00 (2006.01) B29C 51/10 (2006.01)

Patent

CA 1126459

SYNTHETIC PLASTICS ARTICLE MANUFACTURING SYSTEM ABSTRACT OF THE DISCLOSURE An extruder or the like, continuously issues a heated plastics material in the form of an elongated web, which is moved sequentially to molding and article severing sta- tions. The products cut out are moved to lip rolling printing and drying stations. Articles such as containers are formed by the mechanism which includes a turntable assembly for varying the length of the web travel path between an extruder and forming station to thereby control the residual heat in the web at the time of forming, and a molding drum with im- proved plug assist devices which are air powered and also in- clude air emitting ports to move the web into intimate engage- ment with the mold cavities as a final forming step under con- trolled conditions which assure that the pressure is applied at exactly the proper time. The system includes a lip curling system which feeds containers severed from the web in step- wise fashion through forming roll sections and releases them in timed relation to indexible mandrels. The system further includes a Printing assembly which utilizes offset printing mechanism in combination with the mandrels, and associated ink drying mechanism, to print the containers prior to re- leasing or ejecting them.

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