Method and manufacturing line for manufacturing wind turbine blades

A method for manufacturing wind turbine blades having a composite shell structure comprising a matrix material and a fibre reinforcement material by use of a resin transfer moulding process, characterised in that the method comprises a manufacturing line (30), where wind turbine blades are formed in a number of moulds (40, 50, 60), each of the number of moulds (40, 50, 60) comprising at least one mould part (41, 51, 61) comprising a mould cavity (42, 52, 62), wherein the manufacturing line (30) further comprises a gantry means (35) movable along the manufacturing line (30), the method comprising the following steps:

• a) arranging fibre reinforcement material in the at least one mould cavity (42) of a first mould (40) using the gantry means (35), b) moving the gantry means (35) along the manufacturing line (30) to a second mould (50), c) supplying curable matrix material into the at least one mould cavity (42) of the first mould (40), while substantially simultaneously arranging fibre reinforcement material in the at least one mould cavity (52) of a second mould (50) using the gantry means (35),
• wherein the second mould (50) is arranged in substantially longitudinal extension of the first mould (40) and/or a third mould (60) is arranged in substantially longitudinal extension of the second mould (50).