Nozzle mouthpiece for an injection molding nozzle, injection molding nozzle and injection molding tool

An injection molding nozzle (100) for use in an injection molding tool (200) and for processing a fluid mass (M),

• having a nozzle body (101) in which at least one flow channel (102) with a channel inlet (103) and a channel outlet (104) for the fluid mass (M) is formed,
• wherein the channel outlet (104) of the flow channel (102) opens out into an inlet opening (11) of a monolithic nozzle mouthpiece (1), the monolithic nozzle mouthpiece (1) being configured for an injection molding nozzle (100) for use in an injection molding tool (200) and for processing a fluid mass (M), comprising
• a flow channel (10) connecting the inlet opening (11) and an outlet opening (12),
• a cylindrical first sealing surface (20) which is formed radially with respect to a longitudinal axis (L),
• a stop surface (32) which is arranged between the first sealing surface (20) and the outlet opening (12) and which is aligned perpendicular to the longitudinal axis (L) and facing the outlet opening (12), wherein the stop surface (32) is formed by a flange (30) which projects radially with respect to the longitudinal axis (L) beyond the first sealing surface (20), and
• a coupling means (40) which is arranged radially with respect to the longitudinal axis (L) for fixing the nozzle mouthpiece (1) in a mold sprue opening (202) of a pattern plate (201),
• wherein the nozzle body (101) forms a cylindrical sealing surface (105) which is aligned radially with the longitudinal axis (L) in the region of the channel outlet (104), and
• wherein the first sealing surface (20) of the nozzle mouthpiece (1) is mounted movably and with the ability to telescope in the direction of the longitudinal axis (L) on the sealing surface (105) of the nozzle body (101) to form a seal.

A monolithic nozzle mouthpiece (1) for an injection molding nozzle (100) for use in an injection molding tool (200) and for processing a fluid mass (M), comprising a flow channel (10) having an inlet opening (11) and an outlet opening (12), characterized by

• a cylindrical first sealing surface (20) which is formed radially with respect to a longitudinal axis (L) and arranged radially on an inside,
• a stop surface (32) which is arranged between the first sealing surface (20) and the outlet opening (12) and which is aligned perpendicular to the longitudinal axis (L) and facing the outlet opening (12), and
• a coupling means (40) which is arranged radially with respect to the longitudinal axis (L) for fixing the nozzle mouthpiece (1) in a mold sprue opening (202) of a pattern plate (201), wherein the coupling means (40) is an external thread (41) or a bayonet connector and arranged between the stop surface (32) and the cylindrical first sealing surface (20), and
• an external sealing surface (50), which is aligned radially with the longitudinal axis (L), is formed between the coupling means (40) and the outlet opening (12) and is formed between the stop surface (32) and the outlet opening (12).