Method and device for making of aseptic blood bags and the like

A method for the production of a multi component injection molded product, comprising the steps of:

• providing an injection molding device comprising:
• an injection mold comprising a middle mold part arranged in a first direction between a first outer mold part and a second outer mold part,
• wherein the first outer mold part and the second outer mold part are arranged to be linearly movable with respect to the middle mold part in the first direction between an open position and a closed position of the injection mold,
• wherein the middle mold part is arranged to be turnable about a rotation axis and comprises at least one side face which comprises at least one first cavity suitable to temporarily receive a first component comprising a receptacle having at least one chamber, wherein the first cavity at least in the closed position of the injection mold communicates with a first cavity half of a second cavity, and
• wherein the first and/or second outer mold part comprises a second cavity half of the second cavity which in a closed position of the injection mold interacts with the first cavity half to form the second cavity suitable to receive a liquefied first plastic material to form a second component comprising an access point to the receptacle interconnected to the first component;
• inserting the first component in the first cavity;
• closing the injection mold;
• injecting the liquefied first plastic material into the second cavity;
• opening the injection molding device after the first plastic material is sufficiently cured;
• rotating the middle mold part by 180°;
• closing the injection mold;
• injecting the liquefied second plastic material into a third cavity to form a third component comprising a seal;
• and
• opening the injection mold and removing the multi component injection molded product.

An injection mold arranged for assembly-line production of a plurality of multi component injection molded products, comprising:

• a first outer mold part;
• a second outer mold part;
• and
• a middle mold part arranged between the first outer mold part and the second outer mold part, the middle mold part having a plurality of side faces and one or more apertures in at least one of the plurality of side faces, the middle mold part further arranged to receive a cavity module through one of the one or more apertures at an angle that intersects a side face of the middle mold part that is active during an assembly-line production,
• wherein the cavity module forms a first cavity that is at least partially arranged between a first side plate and a second side plate of the cavity module,
• wherein one or more of the first outer mold part, the second outer mold part, and the middle mold part are arranged to be linearly movable along a first axis with respect to each other between open and closed positions of the injection mold,
• wherein the middle mold part is arranged to be turnable about a rotation axis when the injection mold is open, the rotation axis being normal the first axis,
• wherein the middle mold part is arranged to cooperate with one or both of the first outer mold part and the second outer mold part to form at least one second cavity and at least one third cavity when the injection mold is closed, and
• wherein during an injection molding operation, the middle mold part is arranged to temporarily receive a component of a first multi component injection molded product from outside the middle mold part when the injection mold is open comprising a receptacle having at least one chamber, the second cavity is arranged to receive a liquefied first plastic material to form a second component of the first multi component injection molded product when the injection mold is closed comprising an access point to the receptacle, and the third cavity is arranged to concurrently receive a liquefied second plastic material to form a third component of a second multi component injection molded product comprising a seal when the injection mold is closed.