System and method for producing a rotor blade spar cap

A system for producing a rotor-blade spar cap with pultruded rods made of a fiber-reinforced material, the system comprising:

• at least one rod-layer roll with a rolled-up layer of pultruded rods arranged one beside the other;
• at least one retaining apparatus for rotatably mounting the at least one rod-layer roll with a rolled-up layer of pultruded rods arranged one beside the other;
• a laminating mold for receiving layers of pultruded rods;
• at least one guiding apparatus;
• and
• at least one trimming apparatus for trimming the layers of pultruded rods;
• wherein the guiding apparatus is configured to guide onto the laminating mold a layer of pultruded rods which has been unrolled from the at least one rod-layer roll rotatably mounted on the at least one retaining apparatus,
• wherein the at least one trimming apparatus is a sawing apparatus and/or a milling apparatus, and
• wherein, in order to set down alternating sequences of layers with offset rods in individual layers, there are two retaining apparatuses provided for two rod-layer rolls, wherein the two retaining apparatuses are arranged both at a same end of the laminating mold or at opposite ends of the laminating mold or on a movable supporting apparatus.