摘要:
An improved drive system for rotatable members in molding machines comprises at least one frameless, brushless electric motor (38) having a stator (40) mounted on the machine (10) and a rotor (38) directly coupled to the rotatable member (16). The rotor (38) is coupled to the rotatable member (16) so that the axis of rotation (B) of the rotor (38) is concentric to the axis of rotation of the rotatable member (16).
摘要:
Presse d'injection pour pièces moulées en élastomère, comprenant un plateau fixe (4), un plateau mobile (5), un barillet (9) portant plusieurs moules (13) et interposé entre les deux plateaux (4,5) pour pouvoir être serré entre eux de façon à assurer la fermeture des moules (13), le barillet (9) qui est entraîné en rotaion par un arbre (8) disposé selon un axe central (Z) pour déplacer séquentiellement chaque moule (13) entre un poste d'injection, des postes de vulcanisation et un poste de démoulage (20), un dispositif d'injection adapté pour injecter de l'élastomère dans chaque moule lorsqu'il est au poste d'injection, des dispositifs de chauffage adaptés pour chauffer les moules, et un dispositif de commande adapter pour déplacer le plateau fixe (4) et faire tourner le barillet (9).
摘要:
An improved drive system for rotatable members in molding machines comprises at least one frameless, brushless electric motor (38) having a stator (40) mounted on the machine (10) and a rotor (38) directly coupled to the rotatable member (16). The rotor (38) is coupled to the rotatable member (16) so that the axis of rotation (B) of the rotor (38) is concentric to the axis of rotation of the rotatable member (16).
摘要:
In order to achieve lower costs in a molding apparatus using a mold by reducing mold cleaning steps following releasing of the product from the mold and shortening the molding cycle, the apparatus is equipped with a plurality of fixed molds (1) and movable molds (2) which are heated to the temperature necessary to harden a molding material and come together by means of clamping to form a cavity (C), and a non-heated cold runner (32) which supplies the molding material from an injection device (4) to the interior of the cavity (C) via a gate (22) opened in the movable mold (2), the fixed molds (1) and movable molds (2) being movable between an injection stage (S1) where the injection device (4) and cold runner (32) are present and an opening stage (S2) near the injection stage (S1).
摘要:
Presse d'injection comprenant un premier plateau inférieur (5) mobile selon un axe vertical central (Z), un deuxième plateaux (4) sensiblement parallèle, un dispositif de moulage (7) comportant au moins deux moules (13) et un barillet (9) rotatif situé entre les plateaux (4,5), qui porte les moules, un dispositif d'injection (14), un dispositif de chauffage (37), et un dispositif de commande adapté pour déplacer les plateaux (5, 4). Le barillet (9) est monté librement coulissant sur un arbre (8) disposé selon l'axe central (Z), qui comporte une butée (11) limitant le coulissement vers le bas du barillet. Le premier plateau (5) est déplaçable entre une position de fermeture dans laquelle les plateaux serrent les moules qui se trouvent à un poste autre que le poste de démoulage, et une position d'ouverture dans laquelle le barillet (9) est en appui sur la butée (11) et pour laquelle les moules (13) ne sont pas en contact avec les plateaux (5,4).
摘要:
A carousel-like continuous co-injection molding system includes an arrangement of upper and lower inclined feed channels. Each of the feed channels has a valve therein positioned upstream of an inlet to an associated mold cavity. The valve is controllable so that adjustments may be made in real time to achieve or maintain delivery of molten polymeric material to the mold cavity at constant pressure.
摘要:
In order to achieve lower costs in a molding apparatus using a mold by reducing mold cleaning steps following releasing of the product from the mold and shortening the molding cycle, the apparatus is equipped with a plurality of fixed molds (1) and movable molds (2) which are heated to the temperature necessary to harden a molding material and come together by means of clamping to form a cavity (C), and a non-heated cold runner (32) which supplies the molding material from an injection device (4) to the interior of the cavity (C) via a gate (22) opened in the movable mold (2), the fixed molds (1) and movable molds (2) being movable between an injection stage (S1) where the injection device (4) and cold runner (32) are present and an opening stage (S2) near the injection stage (S1).
摘要:
In order to achieve lower costs in a molding apparatus using a mold by reducing mold cleaning steps following releasing of the product from the mold and shortening the molding cycle, the apparatus is equipped with a plurality of fixed molds (1) and movable molds (2) which are heated to the temperature necessary to harden a molding material and come together by means of clamping to form a cavity (C), and a non-heated cold runner (32) which supplies the molding material from an injection device (4) to the interior of the cavity (C) via a gate (22) opened in the movable mold (2), the fixed molds (1) and movable molds (2) being movable between an injection stage (S1) where the injection device (4) and cold runner (32) are present and an opening stage (S2) near the injection stage (S1).
摘要:
A carousel-like continuous molding system includes an arrangement of inclined feed channels. Each of the feed channels has a controllable valve therein positioned upstream of an inlet to an associated mold cavity. The valve is controllable so that adjustments may be made in real time to achieve or maintain delivery of molten polymeric material to the mold cavity at constant pressure.