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1. WO2020109719 - SYSTEM FOR CONTROLLING A SHUTTER OF A PLASTIC MATERIAL INJECTION SYSTEM

Publication Number WO/2020/109719
Publication Date 04.06.2020
International Application No. PCT/FR2019/052813
International Filing Date 27.11.2019
IPC
B29C 45/28 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
28Closure devices therefor
CPC
B29C 2045/2824
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
28Closure devices therefor
2806consisting of needle valve systems
281Drive means therefor
2824Needle valves driven by an electric motor
B29C 2045/2834
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
28Closure devices therefor
2806consisting of needle valve systems
281Drive means therefor
2834Needle valves driven by a lever
B29C 45/281
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
28Closure devices therefor
2806consisting of needle valve systems
281Drive means therefor
Applicants
  • RUNIPSYS EUROPE [FR]/[FR]
Inventors
  • DERICHE, Eric
Agents
  • REGIMBEAU
Priority Data
187202928.11.2018FR
Publication Language French (FR)
Filing Language French (FR)
Designated States
Title
(EN) SYSTEM FOR CONTROLLING A SHUTTER OF A PLASTIC MATERIAL INJECTION SYSTEM
(FR) SYSTÈME DE COMMANDE D'UN OBTURATEUR D'UN SYSTÈME D'INJECTION DE MATIÈRE PLASTIQUE
Abstract
(EN)
The invention relates to a system for controlling a shutter (110) slidably arranged in a plastic material injection nozzle (11), comprising a rotary electric motor (M) and a mechanism adapted to couple said motor (M) to the shutter in order to cause it to slide between a position for closing the nozzle and a position of maximum opening of the nozzle, characterized in that said mechanism comprises: an eccentric (21) integral with an output shaft (20) of the motor so as to be driven in rotation by said output shaft, comprising a crank pin (22) parallel to the output shaft, but not coaxial with said shaft (20), a slide (23) adapted to be secured to one end of the shutter (110), and a connecting rod (25), a first end of which is articulated on the crank pin (22) of the eccentric (21) and a second end is articulated on an axle (25b) of the slide (23) such that the rotation of the eccentric causes sliding of the oscillating shutter between the closing position and the maximum opening position.
(FR)
L'invention concerne un système de commande d'un obturateur (110) agencé en coulissement dans une buse (11) d'injection de matière plastique, comprenant un moteur électrique rotatif (M) et un mécanisme adapté pour coupler ledit moteur (M) à l'obturateur pour l'entraîner en coulissement entre une position d'obturation de la buse et une position d'ouverture maximale de la buse, caractérisé en ce que ledit mécanisme comprend : un excentrique (21) solidaire d'un arbre de sortie (20) du moteur de sorte à être entraîné en rotation par ledit arbre de sortie, comprenant un maneton (22) parallèle à l'arbre de sortie mais non coaxial avec ledit arbre (20), un coulisseau (23) adapté pour être solidarisé à une extrémité de l'obturateur (110), et une bielle (25) dont une première extrémité est articulée sur le maneton (22) de l'excentrique (21) et une seconde extrémité est articulée sur un axe (25b) du coulisseau (23) de sorte que la rotation de l'excentrique engendre un coulissement de l'obturateur oscillant entre la position d'obturation et la position d'ouverture maximale.
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