Injection moulding tool for processing a free-flowing substance, with - an injection moulding nozzle, - a nozzle tip and - a moulding plate, which forms a mould cavity into which a mould sprue opening discharges, - the injection moulding nozzle comprises - a nozzle body, in which at least one flow channel is formed with a channel entry and a channel exit for the free-flowing substance, - wherein the flow channel with its channel exit discharges onto or into an entry opening of the nozzle tip, - the nozzle tip comprises - a flow channel with the entry opening and an exit opening, - a first cylindrical sealing surface formed radially to a longitudinal axis, - an abutment surface arranged between the first sealing surface and the exit opening, which abutment surface is aligned perpendicular to the longitudinal axis and pointing in the direction of the exit opening, and - a coupling means arranged radially to the longitudinal axis for securing the nozzle tip in the mould sprue opening of the mould plate, - wherein the nozzle body in the region of the channel output forms a cylindrical sealing surface aligned radially to the longitudinal axis, and - wherein the nozzle tip with its first sealing surface is mounted on the sealing surface of the nozzle body in a sealing manner and so as to be displaceable in the direction of the longitudinal axis, - wherein the nozzle tip with its exit opening is inserted into the mould sprue opening, and - wherein the mould sprue opening has a coupling means which is in engagement with the coupling means of the nozzle tip, characterised in - that the nozzle tip can be secured with its coupling means onto the mould plate, - wherein the coupling means is an external thread which is positioned to be coaxial to the longitudinal axis and - wherein the coupling means of the mould sprue opening according to the form of the coupling means of the nozzle tip is an internal thread aligned radially to the longitudinal axis. - an injection moulding nozzle, - a nozzle tip and - a moulding plate, which forms a mould cavity into which a mould sprue opening discharges, - the injection moulding nozzle comprises - a nozzle body, in which at least one flow channel is formed with a channel entry and a channel exit for the free-flowing substance, - wherein the flow channel with its channel exit discharges onto or into an entry opening of the nozzle tip, - the nozzle tip comprises - a flow channel with the entry opening and an exit opening, - a first cylindrical sealing surface formed radially to a longitudinal axis, - an abutment surface arranged between the first sealing surface and the exit opening, which abutment surface is aligned perpendicular to the longitudinal axis and pointing in the direction of the exit opening, and - a coupling means arranged radially to the longitudinal axis for securing the nozzle tip in the mould sprue opening of the mould plate, - wherein the nozzle body in the region of the channel output forms a cylindrical sealing surface aligned radially to the longitudinal axis, and - wherein the nozzle tip with its first sealing surface is mounted on the sealing surface of the nozzle body in a sealing manner and so as to be displaceable in the direction of the longitudinal axis, - a nozzle body, in which at least one flow channel is formed with a channel entry and a channel exit for the free-flowing substance, - wherein the flow channel with its channel exit discharges onto or into an entry opening of the nozzle tip, - the nozzle tip comprises - a flow channel with the entry opening and an exit opening, - a first cylindrical sealing surface formed radially to a longitudinal axis, - an abutment surface arranged between the first sealing surface and the exit opening, which abutment surface is aligned perpendicular to the longitudinal axis and pointing in the direction of the exit opening, and - a coupling means arranged radially to the longitudinal axis for securing the nozzle tip in the mould sprue opening of the mould plate, - a flow channel with the entry opening and an exit opening, - a first cylindrical sealing surface formed radially to a longitudinal axis, - an abutment surface arranged between the first sealing surface and the exit opening, which abutment surface is aligned perpendicular to the longitudinal axis and pointing in the direction of the exit opening, and - a coupling means arranged radially to the longitudinal axis for securing the nozzle tip in the mould sprue opening of the mould plate, - wherein the nozzle body in the region of the channel output forms a cylindrical sealing surface aligned radially to the longitudinal axis, and - wherein the nozzle tip with its first sealing surface is mounted on the sealing surface of the nozzle body in a sealing manner and so as to be displaceable in the direction of the longitudinal axis, - wherein the nozzle tip with its exit opening is inserted into the mould sprue opening, and - wherein the mould sprue opening has a coupling means which is in engagement with the coupling means of the nozzle tip, characterised in - that the nozzle tip can be secured with its coupling means onto the mould plate, - wherein the coupling means is an external thread which is positioned to be coaxial to the longitudinal axis and - wherein the coupling means of the mould sprue opening according to the form of the coupling means of the nozzle tip is an internal thread aligned radially to the longitudinal axis.