Apparatus for manufacturing film cartridge and for feeding plate material

Abstract

A film cartridge assembling apparatus including one or more assembly chucks each including two die elements formed by combining partial cylindrical inner surfaces thereof together. The circumference of a resulting cylinder being partially cut to form an opening. One of the die elements includes a member having a flat surface extending from an end of the cylindrically-shaped inner surface towards the opening. The member is adjustably mounted to the one of the die elements The assembly chuck is able to assume a closed state in which the two inner surfaces of the two die elements are matched to each other to form a cylindrical inner surface and an opened state in which ends of the two die elements substantially parallel to the center axis of the cylindrical inner surface are spaced apart form each other.

1 . A film cartridge forming apparatus for rounding a ribbon plate of a film cartridge, having accommodated therein a photographic roll film, said apparatus comprising: 
 a mandrel having a cylindrically-shaped surface section;    a rounding mechanism having a pair of first rollers mounted for rotation for rounding the ribbon plate to a cylindrical shape by said paired first rollers pressing said ribbon plate against said mandrel along said cylindrically-shaped surface section of said mandrel, as said ribbon plate is moved; and    a guide mechanism for guiding operation of said rounding mechanism so that said paired first rollers are moved along said cylindrically-shaped surface section of said mandrel.    
     
     
         2 . A film cartridge forming apparatus for rounding a ribbon plate of a film cartridge, having accommodated therein a photographic roll film, said apparatus comprising: 
 a mandrel having a cylindrically-shaped surface section;    a support metal for clamping the ribbon plate in cooperation with the mandrel as said ribbon plate is compressed against the cylindrically-shaped surface section of said mandrel;    a rounding mechanism having a pair of first rollers mounted for rotation for rounding the ribbon plate to a cylindrical shape by said paired first rollers pressing both lateral sides of a clamp section for said ribbon plate against said mandrel along both outer sides of a support metal or the cylindrically-shaped surface section of said mandrel, as said ribbon plate is moved; and    a guide mechanism for guiding the operation of said rounding mechanism so that said paired first rollers are moved along said cylindrically-shaped surface section of said mandrel.    
     
     
         3 . The film cartridge forming apparatus as defined in  claim 1  wherein said rounding mechanism comprises a pair of second rollers mounted for rotation, said paired second rollers thrusting the cylindrically-shaped surface section of said ribbon plate when said ribbon plate is rounded by said paired first rollers.  
     
     
         4 . The film cartridge forming apparatus as defined in  claim 1  wherein said guide mechanism presses the ribbon plate with said paired first rollers and guides the operation of said rounding mechanism so that a portion of said ribbon plate is compressed against the cylindrically-shaped surface section of said mandrel.  
     
     
         5 . The film cartridge forming apparatus as defined in  claim 1  wherein said guide mechanism comprises a pair of cam followers operatively associated with said paired first rollers and a guide member having a groove for guiding said paired cam followers so that said paired first rollers are moved along the cylindrically-shaped surface section of said mandrel.  
     
     
         6 . The film cartridge forming apparatus as defined in  claim 1  comprising a retention pawl for retaining a haze part and a straight part of the rounded ribbon plate and a feed claw for feeding out the ribbon plate as said haze part and a straight part of the ribbon plate are retained.  
     
     
         7 . The film cartridge forming apparatus as defined in  claim 2  wherein said mandrel comprises a passage section for transporting the ribbon plate in a portion thereof extending from a clamp section with said support metal, and a magnet mounted in the vicinity of the bottom of a recess formed in the bottom of said passage section as said magnet is separated from the bottom of said passage section.