EP 0012574 A1 19800625 - Automatically levelling and compacting sand in mold boxes of varying heights.
Title (en)
Automatically levelling and compacting sand in mold boxes of varying heights.
Title (de)
Automatisches Planieren und Verdichten von Sand in Formkästen verschiedener Höhen.
Title (fr)
Nivelage et compression automatiques du sable dans des moules de fonderie de hauteurs différentes.
Publication
Application
Priority
US 96711078 A 19781206
Abstract (en)
The specification discloses a strike off apparatus for levelling and compacting mounds of sand (32) extending above the upper edges of open-top mold boxes (22) of varying heights carried in succession along a pathway. A pair of pivotally supported rollers (38A, 38B) extend across the pathway. A sensor (36) determines the height of a sand mound in a mold box before it reaches the rollers. An elevating mechanism including a hydraulic cylinder (110) responsive to the sensor adjusts the rollers to a height so that they level and compact the sand mound as the mold box is carried thereunder. A control system including electrical and hydraulic circuits is provided for automatically controlling the cyclical operation of the apparatus.
IPC 1-7
IPC 8 full level
B22C 5/12 (2006.01); B22C 15/02 (2006.01); B22C 25/00 (2006.01); B22D 47/02 (2006.01); B28B 3/12 (2006.01)
CPC (source: EP)
B22C 5/12 (2013.01); B22C 25/00 (2013.01)
Citation (search report)
- DE 2548956 B2 19780223
- DE 1108384 B 19610608 - BUEHRER ERWIN
- DE 2430523 A1 19760115 - PERNES LOTHAR
- DE 2602861 A1 19770728 - ALQUEZAR GAZULLA MANUEL
- DE 2307526 B2 19770929
Designated contracting state (EPC)
AT BE CH DE FR GB IT LU NL SE
DOCDB simple family (publication)
EP 0012574 A1 19800625; EP 0012574 B1 19830112; AT E2201 T1 19830115; DE 2964506 D1 19830217; JP S55100847 A 19800801
DOCDB simple family (application)
EP 79302811 A 19791206; AT 79302811 T 19791206; DE 2964506 T 19791206; JP 15751179 A 19791206