Abstract: A manifold device for an injection-molding nozzle for an injection-molding tool has a main manifold channel for an injection-molding compound, which main manifold channel extends from an inlet opening into the manifold device as far as at least two transfer openings, and at least two manifold channels for the injection-molding compound, which manifold channels each extend from a transfer opening to an outlet opening and are each fluidically connected by a transfer opening to the main manifold channel. Also disclosed are an injection-molding nozzle with such a manifold device and an injection-molding tool with such an injection-molding nozzle.

Abstract: Disclosed is a guide bushing for the guiding and sealing of a closing needle of a needle valve nozzle of an injection moulding apparatus, the guide bushing having a main part and a fastening element, wherein the main part has a through-opening for the closing needle, wherein the through-opening comprises at least one guiding portion, which encloses the closing needle with slight movement play, wherein the through-opening comprises at least two expansion portions, whose diameter in each case is larger than that of the at least one guiding portion. The guide bushing moreover comprises a fastening element, which is securable to the main part, wherein a seal element is arranged between the fastening element and the main part, bearing against the entire circumference of a closing needle inserted into the through-opening.

Abstract: A heating element for flow channel heating or for heating a mould impression and an injection-moulding nozzle incorporating the heating element are disclosed. The heating element has a carrier element which carries a heating conductor with first and second connection pins, and a connection device with an electrical connection cable with first and second conductors. The first and second connection pins end in an insulator. The insulator is arranged at least in certain portions in a receiving sleeve of the connection device, and the receiving sleeve points with a first end in the direction of the carrier element, is fixed with the first end on the carrier element and fixes the insulator in relation to the carrier element. A first crimping sleeve is fixed on the first connection pin and the first conductor, and a second crimping sleeve is fixed on the second connection pin and the second conductor.

Abstract: The disclosure relates to a deflecting device, for deflecting a melt flow in a distributing plate of an injection molding machine, with a base body, wherein a deflecting channel is arranged inside the base body. In order to create an improved solution for diverting the melt flow in a hot runner manifold, the base body can have a separating surface which divides the base body into a first body half and a second body half, wherein the first body half and the second body half can be joined together firmly. The disclosure furthermore relates to a method for producing the deflecting device.

Abstract: A manifold device for an injection-molding nozzle for an injection-molding tool has a main manifold channel for an injection-molding compound, which main manifold channel extends from an inlet opening into the manifold device as far as at least two transfer openings, and at least two manifold channels for the injection-molding compound, which manifold channels each extend from a transfer opening to an outlet opening and are each fluidically connected by a transfer opening to the main manifold channel. Also disclosed are an injection-molding nozzle with such a manifold device and an injection-molding tool with such an injection-molding nozzle.

Abstract: Disclosed is an insert for an injection molding nozzle, with an insert body, in which at least one flow channel is formed with an inlet opening and an outlet opening, wherein the insert body comprises a neck section, for joining to the injection molding nozzle, an end section, for inserting into a mold cavity of a mold insert. Furthermore, the insert body has a flange projecting radially with respect to the end section, having a stopping surface facing the outlet opening and a surface facing the inlet opening. It is proposed that the neck section has at least one seal.

Abstract: The disclosure relates to an insert for use in an injection molding nozzle, with an insert body at least made from a high thermal conductivity material, in which at least one flow channel is formed with an inlet opening and an outlet opening, wherein the insert body comprises a neck section, for joining to the injection molding nozzle, an end section, for inserting into a mold cavity of a mold insert, and a flange with a stopping surface projecting radially with respect to the end section, wherein the stopping surface is formed on a surface of the radially projecting flange facing the outlet opening. According to the disclosure, the stopping surface and the end section have at least partly an outer coating made of a second material with a low thermal conductivity.

Abstract: Disclosed is a guide bushing for the guiding and sealing of a closing needle of a needle valve nozzle of an injection moulding apparatus, the guide bushing having a main part and a fastening element, wherein the main part has a through-opening for the closing needle, wherein the through-opening comprises at least one guiding portion, which encloses the closing needle with slight movement play, wherein the through-opening comprises at least two expansion portions, whose diameter in each case is larger than that of the at least one guiding portion. The guide bushing moreover comprises a fastening element, which is securable to the main part, wherein a seal element is arranged between the fastening element and the main part, bearing against the entire circumference of a closing needle inserted into the through-opening.

Abstract: An insert for an injection-moulding nozzle, having an insert body which has a rear end and a front end and in which at least one flow duct is formed between the rear end and the front end. In this case, the insert body has a first part for arranging the insert on or in the injection-moulding nozzle and a second part for arranging on or in a mould insert. The first part is manufactured from a first material and extends from the rear end of the insert body to a contact surface. The second part is manufactured from a material different from the first material and extends from the contact surface to the front end of the insert body. Furthermore, the first part and the second part are connected firmly together at and/or along the contact surface. Also disclosed, an injection-moulding nozzle can include the insert.

Abstract: A heating element for flow channel heating or for heating a mould impression and an injection-moulding nozzle incorporating the heating element are disclosed. The heating element has a carrier element which carries a heating conductor with first and second connection pins, and a connection device with an electrical connection cable with first and second conductors. The first and second connection pins end in an insulator. The insulator is arranged at least in certain portions in a receiving sleeve of the connection device, and the receiving sleeve points with a first end in the direction of the carrier element, is fixed with the first end on the carrier element and fixes the insulator in relation to the carrier element. A first crimping sleeve is fixed on the first connection pin and the first conductor, and a second crimping sleeve is fixed on the second connection pin and the second conductor.

Abstract: A nozzle mouthpiece for an injection molding nozzle for use in an injection molding tool and for processing a fluid mass has a flow channel having an inlet opening and an outlet opening. A first sealing surface is formed radially with respect to a longitudinal axis. A stop surface is arranged between the first sealing surface and the outlet opening and is aligned perpendicular to the longitudinal axis and facing the outlet opening. A a coupling means is arranged radially with respect to the longitudinal axis for fixing the nozzle mouthpiece in a mold sprue opening of a pattern plate. An injection molding nozzle and an injection molding tool is provided having such the telescopic nozzle mouthpiece, which can be fixed in a mold sprue opening of a pattern plate.

Abstract: An electric heating unit for hot runner systems, and in particular for hot runner nozzles and/or hot runner manifolds includes at least one tubular or muff-like support and at least one heating layer fitted with heating conductor tracks. The heating layer is a fired foil or a fired thick-film paste and the muff-like support is able to be slipped onto a material feed pipe.

Abstract: It is the object of the present invention to improve as to how heat is introduced into the tip of an injection molding nozzle. To this end, the invention provides an injection molding nozzle comprising a material pipe that forms a flow channel with an inlet opening and an outlet opening, as well as a heating device that is thermally coupled to the material pipe, and the material pipe includes two pipe sections that are connected to each other at a coupling location, and wherein the inlet opening is disposed on the first pipe section and the outlet opening is disposed on the second pipe section, and wherein the second pipe section is made of a material of higher thermal conductivity than the first pipe section.

Abstract: A hot runner nozzle having an electrical heating element includes a connector for producing an electrical connection to a connection line, terminal contacts for the heating element terminating in an insulation body for the connector that separates the terminal contacts from one another electrically. The connection line has contact elements that are electrically contactable with the terminal contacts of the heating element. The insulation body is arranged at least in part in a receiving sleeve of the connector, that the connection line may be fixed in or on the receiving sleeve such that the contact elements of the connection line electrically contact the terminal contacts of the heating element, and that a first end of the receiving sleeve that faces towards the heating element wraps around the insulation body and has on this first end two opposing feet that face outward and that are attached to the heating element.

Abstract: A hookup stem (48; 70) to implement an electric hookup (50; 60) of an electric heater of an injection molding nozzle (30), the hookup stem (48; 70) being designed in a manner that it can be affixed by means of at least one electrically conducting adhesion layer (52; 62; 64; 66) and/or by a contact paste (52) to the heater, the hookup stem comprising a shank element (54; 72), and a connecting segment (56; 74) coming into contact with the minimum of one adhesion layer (52; 62; 64; 66) or the contact paste (52).

Abstract: A nozzle mouthpiece for an injection molding nozzle for use in an injection molding tool and for processing a fluid mass has a flow channel having an inlet opening and an outlet opening. A first sealing surface is formed radially with respect to a longitudinal axis. A stop surface is arranged between the first sealing surface and the outlet opening and is aligned perpendicular to the longitudinal axis and facing the outlet opening. A a coupling means is arranged radially with respect to the longitudinal axis for fixing the nozzle mouthpiece in a mold sprue opening of a pattern plate. An injection molding nozzle and an injection molding tool is provided having such the telescopic nozzle mouthpiece, which can be fixed in a mold sprue opening of a pattern plate.

Abstract: A hot runner nozzle having an electrical heating element includes a connector for producing an electrical connection to a connection line, terminal contacts for the heating element terminating in an insulation body for the connector that separates the terminal contacts from one another electrically. The connection line has contact elements that are electrically contactable with the terminal contacts of the heating element. The insulation body is arranged at least in part in a receiving sleeve of the connector, that the connection line may be fixed in or on the receiving sleeve such that the contact elements of the connection line electrically contact the terminal contacts of the heating element, and that a first end of the receiving sleeve that faces towards the heating element wraps around the insulation body and has on this first end two opposing feet that face outward and that are attached to the heating element.

Abstract: An injection-molding equipment includes at least two cavities and at least one needle valve nozzle, each fitted with one needle, per cavity. The needles are displaceable by an electromagnetic drive into an open and a closed position to respectively release and close a gate aperture subtended in the particular related cavity. Each electromagnetic drive has at least one electromagnet with each sealing needle axially held in place in the open and in the closed position by at least one permanent magnet. A control unit generates individual power pulses of which the duration is defined and saved in said control unit. An electromagnet of an electromagnetic drive is fed a power pulse and generates an electromagnetic field to displace the sealing needle from its closed into its open position and vice-versa, with the power pulses for at least two electromagnetic drives being transmitted in time-staggered manner to the drives.

Abstract: The present invention relates to an electric heater (22) to heat substantially cylindrical objects (12), in particular hot runner nozzles (10) of hot runner systems, essentially being fitted with at least one cylindrical support and with at least one heating conductor track (28) deposited on the support (12). To reduce premature failure of the heater, the invention stipulates that each heating conductor track (28) runs substantially in the axial direction (A) of said support (12), the heating conductor tracks (28) being connected to each other by conductor tracks (30) of lower electrical resistance and each conductor track (30) running essentially in the tangential direction (T) of the support (12).

Abstract: An injection molding nozzle (10) for injection molding equipment and comprising a nozzle casing (14) subtending a longitudinal axis (L) fitted with at least one flow duct (18) for a fluid processing material, further comprising at least one nozzle tip (24) discharging the fluid processing material out of the nozzle casing (14), the minimum of one nozzle tip (24) running transversely to the longitudinal axis (L) of the nozzle casing (14), the minimum of one nozzle tip (24) being integral with the nozzle casing (14).