US 12,472,670 B2
Mould-closing unit for an injection-moulding machine for processing plastics
Rainer Bletscher, Baiersbronn (DE); and Eberhard Duffner, Starzach (DE)
Assigned to ARBURG GMBH + CO KG, Lossburg (DE)
Appl. No. 18/012,301
Filed by ARBURG GMBH + CO KG, Lossburg (DE)
PCT Filed Jun. 30, 2021, PCT No. PCT/EP2021/068000
§ 371(c)(1), (2) Date Dec. 22, 2022,
PCT Pub. No. WO2022/003025, PCT Pub. Date Jan. 6, 2022.
Claims priority of application No. 10 2020 117 168.4 (DE), filed on Jun. 30, 2020.
Prior Publication US 2023/0264403 A1, Aug. 24, 2023
Int. Cl. B29C 45/78 (2006.01); B29C 45/17 (2006.01); B29C 45/66 (2006.01); B29C 45/68 (2006.01); B29C 45/76 (2006.01)
CPC B29C 45/7653 (2013.01) [B29C 45/1761 (2013.01); B29C 45/661 (2013.01); B29C 45/681 (2013.01); B29C 2945/76013 (2013.01); B29C 2945/76224 (2013.01); B29C 2945/76387 (2013.01); B29C 2945/76568 (2013.01); B29C 2945/76705 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A mold closing unit for an injection molding machine for processing plastics and other plasticisable materials, comprising
a machine base configured for setting up the mold closing unit,
a mold carrier which is movable in a longitudinal direction of the mold closing unit and which, between itself and a further mold carrier, forms a mold clamping space configured to receive parts of a cyclically openable and closable injection mold,
a linear guide arranged on the machine base in the longitudinal direction and configured for guiding the movable mold carrier during movement in the longitudinal direction,
a load-bearing part supporting the movable mold carrier on at least one of the machine base and the linear guide, the load-bearing part comprising, above the linear guide, a coupling region for the movable mold carrier that is connected to the movable mold carrier in a form fitting manner or by a substance-to-substance bond,
wherein a rigidity of the coupling region is greater in the longitudinal direction than in a direction transverse to the longitudinal direction,
wherein at least one of the load-bearing part and the coupling region has a bionic form including an ellipse in cross section, wherein a smaller axis of the ellipse extends in a direction transverse to the longitudinal direction of the mold closing unit,
wherein the bionic form is configured to allow deformations in the direction transverse to the longitudinal direction and to be less resilient in the longitudinal direction.