Device for producing molded parts from particulate plastic materials
AssigneeKurtz GmbH
InventorsWalter Kurtz, Martin Bauer, Norbert Reuber
Life of this patent
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Abstract
The invention relates to a device (01) having at least two tool parts (03, 53, 63) that are separable at a parting face, wherein the closed tool parts (03, 53, 63) form a mold cavity (02, 52), within which (02, 52) particulate plastic material can be foamed and/or expanded to produce foamed molded parts. According to the invention, in particular to reduce the energy consumption, the tool wall forming the mold cavity (02, 52) is formed at least in sections by a multilayer structure (06, 56, 65) having a thin inner layer that is mechanically supported by a support element.
Claims20
A device for producing foamed molded parts from particulate plastic materials, said device comprising:
- at least two tool parts separable at a parting face, wherein:
- in a closed position, the tool parts form a closed mold cavity having a tool wall defining at least part of a shape of a molded part to be foamed, the mold cavity being heatable with a heating medium to foam and/or expand particulate plastic material enclosed in the closed mold cavity until the closed mold cavity is filled,
- the tool wall has, at least in sections, a multilayer structure, wherein the multilayer structure includes:
- a thin inner layer having an inner side which contacts the particulate plastic material upon filling the closed mold cavity with the particulate plastic material,
- a flow-through support layer arranged on an outer side of the inner layer that mechanically supports the inner layer, and wherein the flow-through support layer includes a plurality of support ribs that have a plurality of recesses and form a lattice structure.
A device for producing foamed molded parts from particulate plastic materials said mold comprising:
- a tool wall defining at least part of a mold cavity and being heatable with a heating medium to foam and/or expand particulate plastic material enclosed in the mold cavity, the tool wall having, at least in sections, a multilayer structure, wherein the multilayer structure includes:
- an inner layer having an inner side which upon filling the mold cavity with the particulate plastic material contacts the particulate plastic material,
- a flow-through support layer mechanically supporting the inner layer, wherein the flow-through support layer includes a plurality of support ribs that have a plurality of recesses and form a lattice structure.
Dependencies are inferred from the claim text.