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1. WO2007144755 - SYSTEM AND METHOD FOR DISCRIMINATING A FAULTY OPERATIONAL CONDITION IN A HOT-RUNNER DEVICE FOR PLASTIC MATERIAL INJECTION-MOULDING EQUIPMENTS

Publication Number WO/2007/144755
Publication Date 21.12.2007
International Application No. PCT/IB2007/001599
International Filing Date 15.06.2007
IPC
B29C 45/76 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
45Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
17Component parts, details or accessories; Auxiliary operations
76Measuring, controlling or regulating
B29C 45/78 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
45Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
17Component parts, details or accessories; Auxiliary operations
76Measuring, controlling or regulating
78of temperature
B29C 45/27 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
45Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
17Component parts, details or accessories; Auxiliary operations
26Moulds
27Sprue channels
CPC
B29C 2045/2741
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
45Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
17Component parts, details or accessories; Auxiliary operations
26Moulds
27Sprue channels ; Runner channels or runner nozzles
2737Heating or cooling means therefor
274Thermocouples or heat sensors
2741Plurality of independent thermocouples or heat sensors
B29C 2045/2754
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
45Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
17Component parts, details or accessories; Auxiliary operations
26Moulds
27Sprue channels ; Runner channels or runner nozzles
2737Heating or cooling means therefor
2754Plurality of independent heating or cooling means, e.g. independently controlling the heating of several zones of the nozzle,
B29C 2945/76043
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
2945Indexing scheme relating to injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould
76Measuring, controlling or regulating
76003Measured parameter
7604Temperature
76043derivative, change thereof
B29C 2945/76163
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
2945Indexing scheme relating to injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould
76Measuring, controlling or regulating
76003Measured parameter
76163Errors, malfunctioning
B29C 2945/76277
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
2945Indexing scheme relating to injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould
76Measuring, controlling or regulating
76177Location of measurement
76254Mould
76274runners, nozzles
76277nozzles
B29C 2945/7628
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
2945Indexing scheme relating to injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould
76Measuring, controlling or regulating
76177Location of measurement
76254Mould
76274runners, nozzles
7628manifolds
Applicants
  • INGLASS S.P.A. [IT]/[IT] (AllExceptUS)
  • DAL BO, Peter [IT]/[IT] (UsOnly)
  • GIRELLI, Dario [IT]/[IT] (UsOnly)
Inventors
  • DAL BO, Peter
  • GIRELLI, Dario
Agents
  • JORIO, Paolo
Priority Data
TV2006A00010816.06.2006IT
Publication Language English (EN)
Filing Language Italian (IT)
Designated States
Title
(EN) SYSTEM AND METHOD FOR DISCRIMINATING A FAULTY OPERATIONAL CONDITION IN A HOT-RUNNER DEVICE FOR PLASTIC MATERIAL INJECTION-MOULDING EQUIPMENTS
(FR) système et procédé de discrimination d'une condition opérationnelle défectueuse dans un dispositif à canal chaud pour équipements de moulage par injection de matériau plastique
Abstract
(EN)
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).
(FR)
L'invention concerne un système et un procédé de discrimination d'une condition opérationnelle défectueuse dans un dispositif à canal chaud (2), comprenant une série d'injecteurs (6), une série de branches tubulaires (7) permettant d'acheminer le matériau plastique aux injecteurs (6), et une série d'unités de chauffage (8), dont chacune est réglée sur une branche (7) dans une position correspondant à un injecteur (6) et comprend une première résistance de chauffage (9) et une seconde résistance de chauffage (10), connectées de manière opérationnelle à un premier thermocouple (11) et, respectivement, à un second thermocouple (12) qui mesurent les températures (T1) et (T2) des résistances (9, 10); le procédé comprenant la phase de discrimination, en fonction des variations (ΔT1, ΔT2) de température mesurées par le premier thermocouple (11) et par le second thermocouple (12) à deux instants de mesure prédéfinis successifs (ti-1,ti), d'une condition opérationnelle défectueuse du dispositif à canal chaud (2) découlant d'une panne d'au moins l'un des thermocouples (11, 12), par rapport à une condition opérationnelle défectueuse du dispositif à canal chaud (2) corrélée à un événement externe, non associé au dysfonctionnement des thermocouples proprement dits (11, 12).
Also published as
Latest bibliographic data on file with the International Bureau