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1. (WO2001034364) MANIFOLD SYSTEM HAVING PROPORTIONAL FLOW CONTROL
Latest bibliographic data on file with the International Bureau   

Pub. No.: WO/2001/034364 International Application No.: PCT/US2000/030421
Publication Date: 17.05.2001 International Filing Date: 03.11.2000
Chapter 2 Demand Filed: 01.06.2001
IPC:
B29C 45/27 (2006.01) ,B29C 45/28 (2006.01) ,B29C 45/30 (2006.01)
B PERFORMING OPERATIONS; TRANSPORTING
29
WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
C
SHAPING OR JOINING OF PLASTICS; SHAPING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL; AFTER- TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
45
Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
17
Component parts, details or accessories; Auxiliary operations
26
Moulds
27
Sprue channels
B PERFORMING OPERATIONS; TRANSPORTING
29
WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
C
SHAPING OR JOINING OF PLASTICS; SHAPING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL; AFTER- TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
45
Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
17
Component parts, details or accessories; Auxiliary operations
26
Moulds
27
Sprue channels
28
Closure devices therefor
B PERFORMING OPERATIONS; TRANSPORTING
29
WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
C
SHAPING OR JOINING OF PLASTICS; SHAPING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL; AFTER- TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
45
Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
17
Component parts, details or accessories; Auxiliary operations
26
Moulds
27
Sprue channels
30
Flow control means disposed within the sprue channel, e.g. "torpedo" construction
Applicants:
KAZMER, David [--/US]; US (UsOnly)
MOSS, Mark, D. [US/US]; US (UsOnly)
DYNISCO HOTRUNNERS, INC. [US/US]; 35 Emerson Avenue Gloucester, MA 01930, US (AllExceptUS)
Inventors:
KAZMER, David; US
MOSS, Mark, D.; US
Agent:
FINNEGAN, HENDERSON, FARABOW, GARRETT & DUNNER, L.L.P.; 1300 I Street, N.W. Washington, DC 20005-3315, US
Priority Data:
09/434,71805.11.1999US
09/434,92805.11.1999US
Title (EN) MANIFOLD SYSTEM HAVING PROPORTIONAL FLOW CONTROL
(FR) APPAREIL ET PROCEDE PERMETTANT DE REGULER PROPORTIONNELLEMENT UNE DISTRIBUTION DE FLUIDE DANS UN MOULE
Abstract:
(EN) In an injection molding machine having first and second nozzles for delivering melt material from a common manifold to one or more mold cavities, apparatus for controlling delivery of the melt material from the nozzles to the one or more mold cavities, each nozzle having an exit aperture communicating with a gate of a cavity of a mold and being associated with an actuator interconnected to a melt flow controller, the apparatus comprising: a sensor for sensing a selected condition of the melt material through at least one of the nozzles; an actuator controller interconnected to each actuator, each actuator controller comprising a computer interconnected to a sensor for receiving a signal representative of the selected condition sensed by the sensor, the computer including an algorithm utilizing a value corresponding to a signal received from the sensor as a variable for controlling operation of an actuator for the at least one nozzle; wherein at least one of the nozzles has a seal surface disposed on a tip end of the nozzle which is engaged and in compressed contact with a complementary surface surrounding the gate of a cavity of a mold, the engaged surfaces forming a seal against leakage of the melt material around the nozzle.
(FR) Dans une machine de moulage par injection comprenant une première et une seconde buses de distribution de matériau fondu, d'un collecteur vers au moins une cavité de moulage, un appareil permet de réguler la distribution du matériau fondu des buses vers au moins une cavité de moulage, chaque buse possédant une ouverture de sortie communiquant avec une entrée de cavité de moulage, et étant associée à un actionneur relié à une unité de commande d'écoulement de matériau fondu. Cet appareil comprend un capteur permettant de détecter un état sélectionné du matériau fondu à travers au moins l'une des buses; et une unité de commande d'actionneur reliée à chaque actionneur, ladite unité de commande comprenant un ordinateur relié à un capteur de façon à recevoir un signal représentatif de l'état sélectionné détecté par ledit capteur, et l'ordinateur comprenant un algorithme utilisant une valeur correspondant à un signal reçu du capteur sous forme d'une variable destinée à commander le fonctionnement de chaque actionneur de buse. Au moins l'une des buses possède une surface d'étanchéité placée sur l'extrémité de ladite buse, qui coopère et est en contact par compression avec une surface complémentaire entourant l'entrée de la cavité de moule, les surfaces coopérantes formant un joint contre les fuites de matériau fondu autour de la buse.
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Designated States: AE, AG, AL, AM, AT, AU, AZ, BA, BB, BG, BR, BY, BZ, CA, CH, CN, CR, CU, CZ, DE, DK, DM, DZ, EE, ES, FI, GB, GD, GE, GH, GM, HR, HU, ID, IL, IN, IS, JP, KE, KG, KP, KR, KZ, LC, LK, LR, LS, LT, LU, LV, MA, MD, MG, MK, MN, MW, MX, MZ, NO, NZ, PL, PT, RO, RU, SD, SE, SG, SI, SK, SL, TJ, TM, TR, TT, TZ, UA, UG, US, UZ, VN, YU, ZA, ZW
African Regional Intellectual Property Organization (ARIPO) (GH, GM, KE, LS, MW, MZ, SD, SL, SZ, TZ, UG, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (EPO) (AT, BE, CH, CY, DE, DK, ES, FI, FR, GB, GR, IE, IT, LU, MC, NL, PT, SE, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GW, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)