Method and device for inserting and depositing a plastic strand into a mold of a forming press

摘要

Plastic emerging from an extruder(1) is cut(6) into pieces of similar or different lengths and placed onto parallel continuous circulating belts(11), which can also be moved transversely. A robotic transfer system(2) positions the individual plastic pieces(7) adjacent to and behind one another on the variable speed belts to form a preform and also picks up and transfers the resulting preform into the lower half of a molding tool in a press(3). An Independent claim is also included for the process plant including a transfer unit with a cutter(6) and placing equipment which cuts plastic pieces according to a programme and places them on two or more independently driven preform forming belts. The belts can move transversely or rotate to assemble a preform from the individual pieces. Preferred Features: The individual plastic pieces are transformed into the required preform shape by transverse movement, rotation and/or lifting of the preform belts. Several preform may be assembled and placed in a number of dies using several robotic heads.