A collapsing core mould is provided for forming a moulded part. The collapsing core mould has a longitudinally moveable center section for withdrawing from a plurality of surrounding laterally moveable peripheral sections, at least some of which laterally moveable peripheral sections are also longitudinally moveable. Withdrawal of the center section allows lateral movement of the at least some of the peripheral sections toward each other. Subsequent longitudinal withdrawal of the at least some of the peripheral sections allows for the remaining peripheral sections to move toward each other and release the moulded part.
B29C 33/48 - SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING - Details thereof or accessories therefor with means for, or specially constructed to facilitate, the removal of articles, e.g. of undercut articles with means for collapsing or disassembling
B29C 37/00 - Component parts, details, accessories or auxiliary operations, not covered by group or
2.
Post-mold cooling method and apparatus with cyclone cooling effect
A post-molding cooling apparatus directs a stream of cooling fluid against a concave interior surface of a molded article to cool the molded article. The apparatus includes an outlet positioned to direct the stream of cooling fluid into an open end of the molded article. The interior surface of the molded article is concave. The outlet is configured to direct the stream of cooling fluid in a helical direction such that at least a portion of the concave interior surface of the molded article acts as a curved surface relative to a direction of flow of the stream of cooling fluid to create turbulent flow of the stream of cooling fluid against the concave interior surface of the molded article along a length of the concave interior surface from the open end of the molded article toward a closed end of the molded article.
A post-molding cooling apparatus directs a stream of cooling fluid against a concave interior surface of a molded article to cool the molded article. The apparatus includes an outlet positioned to direct the stream of cooling fluid into an open end of the molded article. The interior surface of the molded article is concave. The outlet is configured to direct the stream of cooling fluid in a helical direction such that at least a portion of the concave interior surface of the molded article acts as a curved surface relative to a direction of flow of the stream of cooling fluid to create turbulent flow of the stream of cooling fluid against the concave interior surface of the molded article along a length of the concave interior surface from the open end of the molded article toward a closed end of the molded article.
A post-molding cooling apparatus directs a stream of cooling fluid against a concave interior surface of a molded article to cool the molded article. The apparatus includes an outlet positioned to direct the stream of cooling fluid into an open end of the molded article. The i nteri or surface of the molded article is concave. The outlet is configured to direct the stream of cooling fluid in a helical direction such that at least a portion of the concave interior surface of the molded article acts as a curved surface relative to a direction of flow of the stream of cooling fluid to create turbulent flow of the stream of cooling fluid against the concave interior surface of the molded article along a length of the concave interior surface from the open end of the molded article toward a closed end of the molded article.
A post-molding cooling apparatus directs a stream of cooling fluid against a concave interior surface of a molded article to cool the molded article. The apparatus includes an outlet positioned to direct the stream of cooling fluid into an open end of the molded article. The interior surface of the molded article is concave. The outlet is configured to direct the stream of cooling fluid in a helical direction such that at least a portion of the concave interior surface of the molded article acts as a curved surface relative to a direction of flow of the stream of cooling fluid to create turbulent flow of the stream of cooling fluid against the concave interior surface of the molded article along a length of the concave interior surface from the open end of the molded article toward a closed end of the molded article.
40 - Treatment of materials; recycling, air and water treatment,
41 - Education, entertainment, sporting and cultural services
42 - Scientific, technological and industrial services, research and design
Goods & Services
(1) Business management and business administration services; Procuring and selling equipment and products used in the field of injection molding; business consulting services in the field of injection molding; business consulting services in the field of injection molding, namely, advising businesses on the issues of environmental impact, energy consumption, efficiency and improving the economics of injection molding.
(2) Custom manufacture of systems and parts for plastic molding; custom manufacture of molds for plastic injection; assembly of products for others; Procuring and selling equipment and products used in the field of injection molding; business consulting services in the field of Injection molding; business consulting services in the field of injection molding, namely, advising businesses on the issues of environmental impact, energy consumption, efficiency and improving the economics of injection molding.
(3) Consulting and training in connection with systems for plastic injection molding; supplying parts for systems for plastic injection molding; technicians and technical assistance for setting up and operating systems for plastic injection molding.
An injection moulded part design which may be reflected in a part and the mould for making the part has a continuous alternating arrangement of thicker and thinner panels each extending from a gate area along a direction of flow to a transition line. Beyond the transition line the arrangement of thicker and thinner panels is inverted with the thicker panels continuing as thinner panels and vice versa along the direction of flow.
An in-mold closing mechanism is provided for a molding apparatus which produces a molded part having a lid hingedly attached thereto and rotatable about a hinge axis between an initial open configuration adjacent the part and a closed configuration covering an opening in the molded part and lockingly engaging the molded part. The mechanism includes a base to which a rotator arm is mounted at a base end of the rotator arm. The rotator arm is rotatable about an arm axis parallel to the hinge axis. A lid engaging arm is attached to the rotator arm opposite the base end and configured to engage the lid for moving the lid toward its closed configuration. A translator is connected to the base to move the base and in turn the rotator arm between a deployed position wherein the lid engaging arm can engage the lid and a non-deployed position, clear of the lid to allow closure of the molding apparatus. A rotator is connected to the rotator arm for rotating the arm about the arm axis.
A molding arrangement is provided for multi-level stack molds wherein mold sets and runners are made up of modular sections interchangeable individually or as larger assemblies for exchanging molds for one part for those for different parts or exchanging runners between hot tip and valve gate designs to accommodate different molding arrangements. The arrangement has discrete melt paths for each mold level, at least some of which extend around rather than through the mold levels and which incorporate readily separable connectors. This enables one set of molds and possibly as well the runners for one mold level to be interchanged without interfering with the mold and runner arrangement for an adjacent level.
B29C 45/00 - Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
B28B 17/00 - SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER - Details of, or accessories for, apparatus for shaping the material; Auxiliary measures taken in connection with such shaping
A molding arrangement is provided for multi-level stack molds wherein mold sets and runners are made up of modular sections interchangeable individually or as larger assemblies for exchanging molds for one part for those for different parts or exchanging runners between hot tip and valve gate designs to accommodate different molding arrangements. The arrangement has discrete melt paths for each mold level, at least some of which extend around rather than through the mold levels and which incorporate readily separable connectors. This enables one set of molds and possibly as well the runners for one mold level to be interchanged without interfering with the mold and runner arrangement for an adjacent level.
The present invention provides a composite nozzle cap having a first part made of metal and an outer tip of a polymeric material. The first part mechanically secures the nozzle into the nozzle housing by engaging the nozzle housing and pressing against a base flange on the nozzle to clamp the flange between the first part of the nozzle housing. The second part extends away from the nozzle housing and is mechanically secured to the first part. An inner face of the second part contacts the nozzle tip to prevent melt flow between the second part of the nozzle tip. An outer face of the second part contacts the gate insert to avoid melt flow between the second part and the gate insert. As the second part is of a polymeric material, it avoids the heat transfer concerns associated with a metallic interface between the nozzle tip and the gate insert.
The invention provides a replaceable bushing in the base of a nozzle of a hot runner assembly and provides access through a manifold and a rear plate for removal and replacement of the bushing without having to disassemble the hot runner assembly. According to one embodiment of the invention, an actuator access port is provided for removing the valve pin actuator and a bushing access port is provided for accessing the bushing upon removal of the valve pin actuator, both of which may be removed from a second or rear plate of the injection molding assembly.
The present invention provides a composite nozzle cap having a first part made of metal and an outer tip of a polymeric material. The first part mechanically secures the nozzle into the nozzle housing by engaging the nozzle housing and pressing against a base flange on the nozzle to clamp the flange between the first part of the nozzle housing. The second part extends away from the nozzle housing and is mechanically secured to the first part. An inner face of the second part contacts the nozzle tip to prevent melt flow between the second part of the nozzle tip. An outer face of the second part contacts the gate insert to avoid melt flow between the second part and the gate insert. As the second part is of a polymeric material, it avoids the heat transfer concerns associated with a metallic interface between the nozzle tip and the gate insert.
06 - Common metals and ores; objects made of metal
07 - Machines and machine tools
40 - Treatment of materials; recycling, air and water treatment,
Goods & Services
Metal molds, in particular steel molds, for plastic injection. Molds (parts of machines), in particular for plastic injection. Custom manufacture of molds for plastic injection.
