A mold tool for injection molding
AssigneeLego A/S
InventorJens Stamp LAMBÆK
Life of this patent
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Abstract
An injection-molding tool comprising at least two separate mold parts arranged so that they can be moved along a central tool axis between a closed and an open position. At least one of the mold parts comprises an alignment compensator with a first and a second compensator part. The first compensator part has a socket adapted for receiving the second compensator part so that it can slide along the central tool axis in the socket, and for allowing the second compensator part to tilt in the socket. A seal is arranged so that the seal and the first and the second compensator part encloses a space in the socket containing an elastic or fluid material. The seal also comprises a lid made from a plastic material arranged between the second compensator part and the liquid filled space in the socket.
Claims11
An injection-molding tool configured for automated molding of plastic items, the injection-molding tool comprising:
- at least two separate mold parts positioned along a central tool axis, the at least two separate mold parts in a closed position when the at least two separate mold parts are abutting each other and an open position where the at least two separate mold parts are detached from each other, the at least two separate mold parts each including:
- at least one alignment compensator, wherein the compensator comprises
- a first compensator part;
- at least one second compensator part, the first compensator part having one or more sockets, each socket adapted for receiving each of the second compensator part so that it can slide along the central tool axis in the socket, and for allowing the second compensator part to tilt in the socket;
- and
- a seal arranged so that the seal and the first and the second compensator part encloses a space in the socket containing an elastic or fluid material, and wherein the seal having a lid made from a plastic material and being arranged between the second compensator part and the space in the socket.
An injection-molding tool comprising:
- a moveable baseplate;
- a fixed baseplate opposite to the moveable base plate;
- and
- an alignment compensator situated between the moveable and fixed baseplates along an axis, the alignment compensator defining:
- a compensator plate defining a socket with an elastic material, and
- a sealing plate configured to sit in the socket of the alignment compensator,
- wherein when the injection-molding tool is in a closed position, the sealing plate and compensator plate are forced in proximity to each other, and consequentially, the elastic material in the socket is redistributed due to compression forces, forming a fluid seal between the sealing plate and compensator plate, the fluid seal configured for compensating for angular misalignments and varying sized injection-molding tool components.
An injection-molding tool, comprising:
- a moveable baseplate;
- an alignment compensator mounted to the moveable baseplate, the alignment compensator defining a socket on a face thereof opposite the moveable baseplate, the socket having a fluid disposed therein;
- a sealing plate configured to sit in the socket of the alignment compensator;
- a fixed baseplate, defining channels for receiving molten plastic material;
- and
- a mold insert configured for releasable attachment between the fixed baseplate and the complimentary plate, the mold insert further configured to receive the molten plastic material from the fixed baseplate,
- wherein in a closed position, the sealing plate and the mold insert make contact, and consequentially, the fluid in the socket is redistributed due to compression forces, forming a fluid seal between the alignment compensator and the sealing plate, the fluid seal configured for compensating for angular misalignments and varying sized injection-molding tool components.
Dependencies are inferred from the claim text.