Method and apparatus for unwinding a roll of sheet molding...

Details Method and apparatus for unwinding a roll of sheet molding... Method and apparatus for unwinding a roll of sheet molding...

B - Operations, Transporting

26

F

242/38

B26F 3/02 (2006.01) B29C 63/00 (2006.01) B65H 41/00 (2006.01)

Patent

CA 1107706

METHOD AND APPARATUS FOR UNWINDING A ROLL OF SHEET MOLDING COMPOUND Abstract of the Disclosure A machine for dispensing sheet molding compound has two nipper rolls which draw the sheet molding compound from a large roll of sheet molding compound. The sheet molding compound on the roll is covered on both sides with a vinyl film. The nipper rolls, in addition to drawing the sheet molding compound from the reel, also removes the vinyl film. The top film on the sheet molding compound is wound on the upper nipper roll and the vinyl film on the lower surface of the sheet molding compound is wound on the lower nipper roll. The nipper rolls are rotated by an air motor and the pressure between the nipper rolls is controlled by air cylinders. An operator controlled air valve, when operated, causes the nipper rolls to rotate. The pres- sure between nipper rolls is controlled by a separate air valve. By this means the vinyl film can be re- covered in neat rolls.

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