A multi-stage helical gear manufacturing apparatus includes a first mold member, a second mold member, a large gear rotation core, a sleeve pin, a small gear rotation insert, and an insert pin. The second mold member moves the insert pin and the small gear rotation insert after the insert pin is caused to retreat in relation to the small gear rotation insert at the time of mold opening. The first mold member prohibits rotation of the large gear rotation core at the time of mold clamping, permits rotation of the large gear rotation core when the insert pin and the small gear rotation insert of the second mold member are moved at the time of mold opening, and causes the sleeve pin to advance toward the second mold member in relation to the plastic after the insert pin and the small gear rotation insert are separated from the plastic.

A rotating apparatus includes a rotary plate for mounting a tool part, a rotary shaft connected to the rotary plate, a rotary feedthrough including a stator, and a rotor connected to the rotary shaft for feeding through at least two media to the rotary plate. The rotor has a first rotor part for feeding through a first medium and a second rotor part for feeding through a second medium, and the first and the second rotor parts are thermally separated from each other. A first media routing for the first medium is in the form of a hose and/or pipe for the first medium from the first rotor part past the connecting part to the rotary plate. A connecting part is non-rotatably connected to the second rotor part and the rotary shaft. The hose and/or pipe extends from the first rotor part.

A keyboard with I-shaped key caps integrally formed by injection molding includes I-shaped key caps integrally formed, a printed circuit film, and a keyboard base plate for supporting the printed circuit film. A groove is provided on the hard sheet for flow guiding so as to achieve integral injection molding of a soft-rubber convex elastic switch body in the center of the inner side of the hard sheet. Hence, the soft-rubber convex elastic switch body is directly molded in the center of the hard sheet. In this way, during pressing, the soft-rubber convex elastic switch body can directly receive a pressing force transferred from the hard sheet, thereby achieving higher press accuracy. The disclosure solves the technical problem of injection molding/mold stripping of a traditional keyboard structure, so that a key surface, of the entire keyboard has small gaps and is pretty smooth.

An injection mold including at least one first station for the injection of a first portion of the part, at least one second station for the injection of a second portion of the part, a first loader including at least one first molding cavity, the first loader being movable at least in rotation between the first injection station and a first transfer and/or assembly area, a second loader including at least one first molding cavity, the second loader being movable at least in rotation between the second injection station and a second transfer and/or assembly area, wherein the injection mold includes at least one transfer loader, movable at least in rotation between the first transfer and/or assembly area and the second transfer and/or assembly area.

An apparatus and process for molding workpieces usable for consumer products. The workpieces may be injection molded with a cavity formed by a core pin and have an undercut, such as internal threads, in the cavity. The apparatus has a drive system with a stripper plate mounted for alternatingly forward and retracting axial movement. The stripper plate is axially driven and drives a stripper sleeve barrel cam and a core pin base barrel cam, each having respective cam followers. The respective motions of the cam followers are superimposed on a stripper sleeve insert, which drives a core pin sleeve. The core pin sleeve is subjected to responsive three-dimensional motion, allowing an internally threaded workpiece to be unscrewed from the core pin sleeve. The system does not require separate drives for the core pin sleeve and further allows each mold cavity/core pin combination in a mold half to be unique.

A threaded mold decoupling system includes at least one unscrewing assembly configured to remove a molded article a threaded core of an injection mold, an elevator assembly, and a driving element disposed in operative communication with the at least one unscrewing assembly and with the elevator assembly. The driving element is configured to actuate the at least one unscrewing assembly to rotate a molded article about a longitudinal axis of the threaded core and actuate the elevator assembly to linearly translate the molded article along the longitudinal axis of the threaded core.

A mechanical interlock pin assembly includes a shaft having a first end and a second end. The mechanical interlock pin assembly includes a set of helical spline elements disposed at the first end of the shaft, the set of helical spline elements extending along a longitudinal axis of the shaft. The mechanical interlock pin assembly includes a bearing rotatably coupled to the second end of the shaft, the bearing configured to allow rotation of the shaft between a first rotational position and a second rotational position relative to a mold cavity.

An injection mold including at least one first mold portion, at least a second mold portion positioned facing the first mold portion, the first portion or the second portion of the mold being configured to be axially movable relative to respectively the second portion or the first mold portion between at least an opening position of the injection mold and a closing position of the injection mold, at least one first workstation called injection station, and at least a second workstation called insert laying station and/or an ejection station. An injection method implemented by the injection mold.

The invention relates to a retaining device (1) for a rotatable mold center part (2) in an injection molding machine, the retaining device comprising a plate (17) used for retaining the rotatable mold center part (2), the plate being rotatable about an axis of rotation (16) and driven by means of a motor (20). The retaining device (1) comprises a lower cross member (10), which is mounted movably in the longitudinal direction (x) on guide rails (7) while supported on a machine bed (6) of the injection molding machine by means of first bearing blocks (8). The retaining device (1) comprises second bearing blocks (23), by means of which the lower cross member (10) is supported in the circumferential direction relative to lower beams (5) of the injection molding machine.

The invention relates to a retaining device for a rotatable center block in an injection molding device, comprising a lower rotary plate rotatable about an axis of rotation and driven by a motor, the lower rotary plate being used for retaining the rotatable center block. The retaining device comprises a lower cross member, which is mounted movably in the longitudinal direction (x) on guide rails while supported on a machine bed of the injection molding device by means of first bearing blocks. The retaining device can have two bearing blocks, by means of which the lower cross member is supported in the circumferential direction relative to lower beams of the injection molding device. For a further increase in efficiency, the center block has a main body made of a material of lower density than a coupling plate operatively connected thereto.