Global Patent Index - EP 3302851 B1

EP 3302851 B1 20220803 - SPRUE SYSTEM FOR A DIECASTING DIE

Title (en)

SPRUE SYSTEM FOR A DIECASTING DIE

Title (de)

ANGUSSSYSTEM FÜR EINE DRUCKGIESSFORM

Title (fr)

SYSTÈME D'INJECTION POUR MOULE DE COULÉE SOUS PRESSION

Publication

EP 3302851 B1 20220803 (DE)

Application

EP 16727989 A 20160602

Priority

  • DE 102015210403 A 20150605
  • EP 2016062563 W 20160602

Abstract (en)

[origin: WO2016193397A1] The invention relates to a sprue system for a diecasting die, which includes at least one runner channel (6), which extends from an entry-side sprue mouth opening to an exit-side sprue opening (7), which opens into a die cavity of the diecasting die, formed between a fixed die half (1) and a movable die half (3), or into a gate region (8) arranged upstream thereof. According to the invention, the runner channel has a geometrically and/or thermally defined parting point region (9) upstream of the sprue opening and downstream of the sprue mouth opening. The runner channel has a bend or kink (9a) in the parting point region and/or a heating device is allocated to a runner channel section between the parting point region and the exit-side sprue opening and/or a heating device is allocated to a runner channel section which connects upstream to the parting point region and which conically tapers toward the parting point region, and/or a region of the movable die half opposite the sprue opening has a cooling channel structure. The invention further relates to use thereof, as a heating channel sprue system for diecasting machines, for example.

IPC 8 full level

B22D 17/22 (2006.01)

CPC (source: EP US)

B22C 9/082 (2013.01 - EP US); B22D 17/2038 (2013.01 - EP US); B22D 17/2272 (2013.01 - EP US); B22D 17/2281 (2013.01 - EP US); B22D 17/32 (2013.01 - EP US); B22D 17/007 (2013.01 - EP US); B22D 17/2218 (2013.01 - EP US)

Citation (opposition)

Opponent : Firma Ferrofacta GmbH

Designated contracting state (EPC)

AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

DOCDB simple family (publication)

DE 102015210403 A1 20161208; CN 107848026 A 20180327; EP 3302851 A1 20180411; EP 3302851 B1 20220803; ES 2929397 T3 20221129; HK 1245717 A1 20180831; JP 2018516176 A 20180621; JP 6791884 B2 20201125; PL 3302851 T3 20221219; PT 3302851 T 20220922; US 2018169747 A1 20180621; WO 2016193397 A1 20161208

DOCDB simple family (application)

DE 102015210403 A 20150605; CN 201680042859 A 20160602; EP 16727989 A 20160602; EP 2016062563 W 20160602; ES 16727989 T 20160602; HK 18105432 A 20180425; JP 2017563166 A 20160602; PL 16727989 T 20160602; PT 16727989 T 20160602; US 201615579731 A 20160602