A system comprises a fully automated fabrication cell (20) for forming overmolded oral care implements. The cell (20) includes a cluster of process stations (21) including injection molding machines operable to first form oral care implement preforms and then overmold the preforms with an overlay to create fully formed oral care implement bodies. In one example, the overlay may be a flexible elastomeric or rubber material while the preform may comprise a more rigid plastic material. Transfer of the preforms and bodies between the process stations (21) is fully automated and performed by a computer-operated robot (40) having a jointed articulated arm. A grasping tool (60) disposed on an end of the arm (42) releasably engages and transports a plurality of preforms and/or bodies simultaneously. The tool provides two different methods for engaging and holding the toothbrush skeletons/bodies. A programmable controller (130) automatically controls the robotic arm (42)'s operation and movement.

A device (6) for producing injection-molded parts (1) is provided, with the device device (6) having at least one cooling device (9) in which pre-molded parts (4) are cooled before the injection-molding of a further material component (3). A method is also provided with improvements in the technical field of the production of injection-molded parts (1), in particular of brushes or toothbrush bodies.

It is an object of the present invention to provide a light diffusing lens production apparatus which makes it possible to efficiently produce a high-quality light diffusing lens having enhanced optical properties. The light diffusing lens production apparatus includes: a pair of molds 15, consisting of a fixed mold 16 and a movable mold 18, which forms a final molded product cavity 22 that defines the shape of a light diffusing lens 14; a mold clamping apparatus 62 in which the pair of molds 15 is attached; a transport device 66, having a chuck means capable of entering and exiting the space between the pair of molds 15 in an open state, which inserts a semifinished molded product 12 for the light diffusing lens 14 into the final molded product cavity 22; a heating device 68, having a heating means capable of entering and exiting the space between the pair of molds 15 in an open state, which heats the fixed mold 16-facing surface of the inserted semifinished molded product until the surface becomes a molten state; and an injection apparatus 64 which, after clamping of the pair of molds 15, injects a molding material into the final molded product cavity 22 so that the molding material covers the molten surface of the semifinished molded product 12.

A film material insert molding method, includes an intermediate part forming step of forming a first intermediate part having an edge extending radially outward, the edge being disposed at and near an outer peripheral end of a final shape of a film material, a transparent resin layer forming step of forming a second intermediate part including a transparent resin layer, by injection molding, on a front surface of the first intermediate part, with the edge of the first intermediate part being fixed, and a substrate resin layer forming step of forming an insert-molded article including a substrate resin layer, by injection molding, on a back surface of the second intermediate part, the substrate resin layer covering a surface of a radially outer end of the edge.

A method for the production of an injection-molded part including casting an injection-molding material at least two injection-molding stations by at least two injection-molding processes. A pre-molded part, produced in one of the at least two injection-molding processes, is cooled in a cooling station between the at least two injection-molding processes.

A system for molding a door part of an automobile air conditioner is provided. The system is capable of automating a double injection-molding performed in two stages for a cover plate and a seal of the door part. The system includes a first molding unit for molding the cover plate, a second molding unit for integrally molding the seal onto a circumference of the cover plate, and a carrier unit arranged between the first and second molding units for moving the cover plate molded by the first molding unit to the second molding unit.

Hollow injection molded article made of plastic material, esp. preform for blow molding a container, with a wall (17) extending along axis (I), which is composed of a layer of variable thickness (), being remarkable in that longitudinal ribs are provided in said axis direction, wherein the wall has a tooth profile of periodic nature varying periodically between a minimum and a maximum threshold value (m, resp. M) which is determined by a typical injection molding length (Ls) for said plastic material and/or characteristic ratio (max/min). A method of manufacturing thereof (10) by injection molding comprising forming inner and outer preforms (11, 12) with formation of an integrated composite preform (10), and apparatus for this purpose.

An injection molding system is configured to produce a multi-color molded article by simultaneously or sequentially injection-molding resins of a plurality of types by means of a plurality of injection molding machines. An insert mold is mounted in a mold of a first injection molding machine and a primary molded article is molded by this injection molding machine. Thereafter, a robot arm takes out the insert mold, along with the primary molded article, from the mold of the injection molding machine and attaches it to a mold of a second injection molding machine. A two-color molded article is injection-molded by the second injection molding machine and removed as a product.