in a method for producing plastic parts , which comprises the step that the plastic parts are injection - moulded by means of a moulding tool , the moulding tool is displaced after the injection - moulding together with the plastic part . an apparatus for the production of plastic parts is also described . the apparatus has an injection - moulding nozzle and a moulding tool with co - operating mould parts or halves , the tool having an open and a closed position . further , the apparatus has means for displacing each plastic part in relation to an injection - moulding position where injection - moulding takes place and means for displacing the moulding tool in the closed state together with the plastic part .