摘要:
Apparatus and methods for fluid-assisted injection molding systems or co-injection molding systems. A pair of concentric movable pin members (52, 54) are positioned in a mold bushing (12) and selectively controlled to facilitate or prevent the passage of molten plastic material and a fluid into the mold cavity. An inner pin member (54) is positioned within a hollow pin member (52) and both pin members (52, 54) are controlled by piston members (60, 62) which are selectively moved in a block member (16) by selective pressurization from a hydraulic or pneumatic source. Movements of the piston members (60, 62) selectively controls the operation of the pin members (52, 54) and thus the operation of the fluid-assisted injection molding system.
摘要:
Heating device (1) for locally heating of an injection mold cavity wall(2), comprising: -a base plate (3), an actuator (4) located on the base plate, to perform a linear movement; - a heated stamp (5) connected to the actuator (4) and driven by the actuator, to perform a linear movement in direction to and from the injection mold cavity wall (2); wherein the heated stamp (5) is located below the base plate and the actuator is located on top of the base plate, and wherein the base plate comprises an opening (6) through which a pin (7) extends for transferring the linear movement from the actuator to the heated stamp.
摘要:
An injection molding nozzle for dispensing of molten material includes an elongated body member having an outer surface, a first portion at a proximal end, a second portion at a distal end, and a central passageway extending longitudinally therethrough from the first portion to the second portion. The central passageway includes an inlet defined at the proximal end and splits outwardly at the second portion to form a radially extending passageway leading to an outlet. A tip member is coupled to the outlet to facilitate dispensing of molten material into a mold cavity. A groove is defined on the outer surface of the body member that winds from the first portion to a heated section of the second portion that is positioned adjacent to the tip member.
摘要:
Apparatus and methods for fluid-assisted injection molding systems or co-injection molding systems. A pair of concentric movable pin members (52, 54) are positioned in a mold bushing (12) and selectively controlled to facilitate or prevent the passage of molten plastic material and a fluid into the mold cavity. An inner pin member (54) is positioned within a hollow pin member (52) and both pin members (52, 54) are controlled by piston members (60, 62) which are selectively moved in a block member (16) by selective pressurization from a hydraulic or pneumatic source. Movements of the piston members (60, 62) selectively controls the operation of the pin members (52, 54) and thus the operation of the fluid-assisted injection molding system.
摘要:
Heating device (1) for locally heating of an injection mold cavity wall(2), comprising: -a base plate (3), an actuator (4) located on the base plate, to perform a linear movement; - a heated stamp (5) connected to the actuator (4) and driven by the actuator, to perform a linear movement in direction to and from the injection mold cavity wall (2); wherein the heated stamp (5) is located below the base plate and the actuator is located on top of the base plate, and wherein the base plate comprises an opening (6) through which a pin (7) extends for transferring the linear movement from the actuator to the heated stamp.