A method for producing a cable spool including the steps of providing a mold for producing a cable spool, assembling said mold by joining said at least two central mold pieces and said first and second flange mold pieces, adding molten polymer material to said mold, removing said mold and cooling said cable spool. Also, a mold for producing a cable spool, said mold including at least two central mold pieces, a first flange mold piece and a second flange mold piece. Also, a plastic cable spool including a barrel and two annular flanges located at opposite ends of said barrel, wherein each one of said flanges has an inward facing side directed towards said other flange and an outward facing side, and each one of said flanges includes a through-hole extending between said inward facing side and said outward facing side.

A plastic product includes a first component made of plastic and a second component made of plastic. The first component includes a first joint surface. The second component includes a second joint surface joined to the first joint surface. The first component includes a contact surface that is located on a side opposite to the first joint surface in a facing direction. The contact surface includes a general portion and a protruding portion. The first component includes at least one recess in an outer side surface located between the first joint surface and the contact surface in a part in which the protruding portion is provided. The recess opens in the outer side surface.

A liftgate (28) formed with a thermoplastic which is overmolded around preselected reinforcements at stress points, such as a corner area, which includes a pair of separate reinforcement plates (14,18) and wherein a 3-dimensional reinforcement plate (12) is connected between the pair of separate reinforcements (14,18). Preferably the 3-dimensional reinforcement plate is connected to three reinforcements.

A liftgate formed with a thermoplastic which is overmolded around preselected reinforcements at stress points, such as a corner area, which includes a pair of separate reinforcement plates and wherein a 3-dimensional reinforcement plate is connected between the pair of separate reinforcements. Preferably the 3-dimensional reinforcement plate is connected to three reinforcements.

A three-dimensional overmolding and process for manufacturing same. The three-dimensional overmolding has a three-dimensional structure with overmolding, which gives significant performance benefits. Assembly and joining of reinforcements is done before the overmolding or in the injection molding tool. The three-dimensional overmolding meets predetermined structural requirements without requiring secondary operations and at a lower mass and cost. The structural benefits are due to the three dimensional shape in combination with the benefit of the overmolding process.

Metal rib overmolding joining including creating geometrical features in reinforcements for interconnecting a three-dimensional metal reinforcement to a metal base plate of an overmolding part in order to transfer load forces. Interlocked reinforcement is pre-assembled or assembled in an injection molding tool. Geometric features are positioned and joined creating a connection geometry that is overmolded. The joints created between the metal reinforcements are done without a welding process.

A casting tool has a tool part that, in a casting position, delimits a hollow of the casting tool and shapes a negative form of a self-supporting cantilever of a cast part. The tool part is transferable from the casting position along a separation direction into a separation position to demold the cast part. The hollow has an undercut with respect to the separation direction that is shaped by the tool part in the casting position.

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 mold structure includes a fixed mold and a movable mold, and a first insert and a second insert disposed in the movable mold. A molded product includes a plate-shaped body, a side wall, and a wrapped portion. The side wall has a basal end region that is curved and connected to the body. The first insert is located at a position corresponding to the side wall inside the molded product. The second insert is located at a position corresponding to the body inside the molded product. The second insert has a contact surface for the molded product. When the mold structure is clamped, an edge of the contact surface is located closer to a distal end of the side wall than a position where the basal end region of the side wall is connected to the body.

An injection molding tool comprising two mold parts arranged for mutual movement along a tool axis between a closed position and an open position. The injection molding tool comprises a first mold core having a mounting end and a core end. Each of the two mold parts, in the closed position, form a mold cavity and a socket adapted for holding the mounting end between the two mold parts, and for releasing the mounting end in the open position. The core end of the first mold core in the closed position, extends along a core axis from the mounting end and into the mold cavity in a transverse direction with respect to the direction of the tool axis, so that the mold cavity forms a tubular space extending axially along the core axis between both of the two mold parts and the core end of the mold core part.