公开(公告)号：EP2040903A2

公开(公告)日：2009-04-01

申请号：EP07766549.5

申请日：2007-06-15

申请人： Inglass S.p.A.

发明人： DAL BO, Peter ,  GIRELLI, Dario

IPC分类号： B29C45/76 ,  B29C45/78 ,  B29C45/27

CPC分类号： B29C45/768 ,  B29C45/2738 ,  B29C45/78 ,  B29C2045/2741 ,  B29C2045/2754 ,  B29C2945/76043 ,  B29C2945/76163 ,  B29C2945/76277 ,  B29C2945/7628 ,  B29C2945/76454 ,  B29C2945/76943

摘要： A system and method for discriminating a faulty operational condition in a hot-runner device (2), comprising a series of injectors (6), a series of tubular branches (7) for conveying the plastic material to the injectors (6), and a series of heating units (8), each of which is set on a branch (7) in a position corresponding to an injector (6) and comprises a first heating resistor (9) and a second heating resistor (10), operatively connected to a first thermocouple (11) and, respectively, to a second thermocouple (12) that measure the temperatures (T1) and (T2) of the resistors (9, 10); the method comprising the step of discriminating, as a function of the variations (ΔT1, ΔT2) of temperature measured by the first thermocouple (11) and by the second thermocouple (12) in two successive pre-set measurement instants (ti-1,ti), a faulty operational condition of the hot-runner device (2) deriving from a failure of at least one of the thermocouples (11, 12), from a faulty operational condition of the hot-runner device (2) correlated to an external event, not associated to the malfunction of the thermocouples themselves (11, 12).

公开(公告)号：EP2035207A2

公开(公告)日：2009-03-18

申请号：EP07766555.2

申请日：2007-06-15

申请人： Inglass S.p.A.

发明人： DAL BO, Peter ,  GIRELLI, Dario

IPC分类号： B29C45/76 ,  B29C45/27

CPC分类号： B29C45/7666 ,  B29C45/2737 ,  B29C45/768 ,  B29C2945/7603 ,  B29C2945/7604 ,  B29C2945/76163 ,  B29C2945/76274 ,  B29C2945/76304 ,  B29C2945/76381 ,  B29C2945/76454 ,  B29C2945/76943

摘要： Described herein is a method for controlling a mould (1) for the production of plastic material articles; the mould (1), comprising a metal body (2) provided with an impression (2a) shaped so as to reproduce in negative the form of at least one part of the article to be made, a hot runner (3) for the distribution of liquid state plastic material that is positioned on the body (2) and is structured so as to cause the plastic material to flow away, on command and in a controlled manner, to the impression (2a), and a thermoregulation system (5) that is able to cool or heat the body (2); the method comprising the steps of calculating the power absorbed (PE1 (ti) ) by the hot runner (3), calculating the power absorbed (PE2 (ti) ) by the thermoregulation system (5), calculating the deviation (ΔEP) between the power absorbed (PE1 (ti) ) by the hot runner (3) and the power absorbed (PE2 (ti) ) by the thermoregulation system (5), and detecting a condition of malfunctioning of the mould (1) when the deviation (ΔEP) calculated is different from a pre-set reference deviation (ΔEC).