B29C2045/2693

Injection moulding method
10875228 · 2020-12-29 · ·

A method of injection moulding an article, the method comprising the steps of: (a) providing an injection mould comprising a plurality of mould parts defining a mould cavity of the injection mould, the plurality of mould parts including first and second movable mould parts, the injection mould further comprising an injection inlet for injecting molten thermoplastic resin material into the mould cavity, wherein the injection inlet is located in the vicinity of the first movable mould part and the second movable mould part is remote from the injection inlet; (b) disposing the first and second movable mould parts in a first configuration so as to define a first intermediate moulding cavity, in which first configuration the first movable mould part is in a first rearward position and the second movable mould part is in a first forward position; (c) injecting molten thermoplastic resin material into the first intermediate moulding cavity through the injection inlet to fill the first intermediate moulding cavity with the molten material; (d) closing the injection inlet; (e) after commencement of the injecting step and at least partly after the closing step, moving the second movable mould part from the first forward position to a second rearward position; (f) moving the first movable mould part from the first rearward position to a second forward position; and (g) moving the second movable mould part from the second rearward position to a third forward position thereby to dispose the first and second movable mould parts in a final configuration so as to define a final moulding cavity of the injection mould filled with the molten material, the final moulding cavity defining a cavity outer surface which defines the outer shape of the article to be moulded.

Method and apparatus for producing a trim component having a molded rim at an edge thereof
10611070 · 2020-04-07 · ·

A one-shot molding apparatus and method press-mold a trim component body between upper and lower molds, and injection-mold a plastic rim onto an edge of the trim component body using an additional edge molding tool, in a single molding apparatus in a single molding cycle. The edge molding tool may have a cutting edge that cooperates with a counter edge on the upper or lower mold to remove excess material and form a precise cut edge of the trim component body before forming the molded rim. The edge molding tool is movable relative to the upper and lower molds in a direction parallel or perpendicular or oblique relative to a motion direction of the upper and lower molds. Additional movable nested tools can be provided on the upper and/or lower mold to achieve greater adaptability of the injection-molding cavity. The rim can be molded onto the cut edge, and molded around the edge onto the back and/or front side of the trim component body. The trim component may be a trim panel for the interior of a motor vehicle.

MOLD AND METHOD FOR MOLD FORMING PRODUCTS

The invention relates to a mold, comprising at least one mold cavity defined by at least a mold wall, wherein at least one part of said wall is a porous part, wherein the at least one porous part is formed by or comprises a porous insert inserted into an opening extending into and preferably through said wall

TRANSFER MOLDING MOLD AND TRANSFER MOLDING APPARATUS FOR VULCANIZED RUBBER BOOTS
20240190055 · 2024-06-13 ·

A die-casting forming mold for vulcanized rubber boots, comprising: a combined shaft mold provided with an inner cavity corresponding to a shaft of a rubber boot; a last mold 21 provided with partition elements, comprising a body substantially corresponding to the shaft of the rubber boot in shape, and two or more partition elements disposed on the body, the last mold 21 being adapted to be mounted in the inner cavity of the shaft mold to form a die-casting forming cavity between the wall of the inner cavity of the shaft mold and the outer surface of the last mold 21, and the die-casting forming cavity being divided into two or more portions by the last mold 21 and the shaft mold, wherein the last mold 21 further comprises: a longitudinally extending rubber injection channel extending longitudinally downward from the upper surface of the last mold 21, and a transversely extending rubber injection channel extending transversely from the longitudinally extending rubber injection channel to a rubber outlet in the surface of the last mold 21; and a rubber injection plate 5 adapted to be mounted to the top of the shaft mold to guide the injection of an unvulcanized mixed rubber material, the rubber injection plate 5 being provided with: a rubber injection hole 11 adapted to be connected to an external injection head to inject the unvulcanized mixed rubber material, and a rubber injection channel for communicating the rubber injection hole 11 with the longitudinally extending rubber injection channel.

Injection Moulding Method
20180264699 · 2018-09-20 ·

A method of injection moulding an article, the method comprising the steps of: (a) providing an injection mould comprising a plurality of mould parts defining a mould cavity of the injection mould, the plurality of mould parts including first and second movable mould parts, the injection mould further comprising an injection inlet for injecting molten thermoplastic resin material into the mould cavity, wherein the injection inlet is located in the vicinity of the first movable mould part and the second movable mould part is remote from the injection inlet; (b) disposing the first and second movable mould parts in a first configuration so as to define a first intermediate moulding cavity, in which first configuration the first movable mould part is in a first rearward position and the second movable mould part is in a first forward position; (c) injecting molten thermoplastic resin material into the first intermediate moulding cavity through the injection inlet to fill the first intermediate moulding cavity with the molten material; (d) closing the injection inlet; (e) after commencement of the injecting step and at least partly after the closing step, moving the second movable mould part from the first forward position to a second rearward position; (f) moving the first movable mould part from the first rearward position to a second forward position; and (g) moving the second movable mould part from the second rearward position to a third forward position thereby to dispose the first and second movable mould parts in a final configuration so as to define a final moulding cavity of the injection mould filled with the molten material, the final moulding cavity defining a cavity outer surface which defines the outer shape of the article to be moulded.

Method and Apparatus for Producing a Trim Component Having a Molded Rim at an Edge Thereof
20180186052 · 2018-07-05 ·

A one-shot molding apparatus and method press-mold a trim component body between upper and lower molds, and injection-mold a plastic rim onto an edge of the trim component body using an additional edge molding tool, in a single molding apparatus in a single molding cycle. The edge molding tool may have a cutting edge that cooperates with a counter edge on the upper or lower mold to remove excess material and form a precise cut edge of the trim component body before forming the molded rim. The edge molding tool is movable relative to the upper and lower molds in a direction parallel or perpendicular or oblique relative to a motion direction of the upper and lower molds. Additional movable nested tools can be provided on the upper and/or lower mold to achieve greater adaptability of the injection-molding cavity. The rim can be molded onto the cut edge, and molded around the edge onto the back and/or front side of the trim component body. The trim component may be a trim panel for the interior of a motor vehicle.