Method and injection mould for producing a product from an insert and plastic body injection-moulded thereon

A method for producing a product comprising a cup-shaped insert having a peripheral edge which is to be reinforced and a peripheral plastic body which is injection-moulded onto the peripheral edge, the peripheral plastic body surrounding an edge region of the cup-shaped insert on both sides of the edge region and at an end face of the edge region, the method comprising:

• providing a first mould part of an injection mould;
• inserting the cup-shaped insert into the first mould part, the first mould part and the cup-shaped insert being designed in such a manner that a first peripheral cavity is formed on the inner side and at the end face at the edge region which is to be overmoulded and the outer side of the edge region of the cup-shaped insert bears against a wall of the first peripheral cavity;
• injecting a first polymer melt into the first peripheral cavity to manufacture a first peripheral plastic body part, the first peripheral cavity having a rib which forms a recess in the first peripheral plastic body part at the end face of the edge region of the cup-shaped insert;
• providing a second mould part of an injection mould;
• inserting the cup-shaped insert having the first peripheral plastic body part into the second mould part, the second mould part being designed in such a manner that a second peripheral cavity for manufacturing a second peripheral plastic body part is formed on the outer side on the edge region to be overmoulded and that the recess in the first peripheral plastic body part is connected to the second peripheral cavity;
• injecting a second polymer melt into the second mould part so that the second polymer melt flows through the recess of the first plastic body part, fills the second peripheral cavity and thus forms the second peripheral plastic body part;
• removing the product having a peripheral plastic body consisting of the first and the second peripheral plastic body parts from the mould.