| 摘要 |
A fixed tool half(3) opposes a movable tool half(5) sliding along tiebars(4). Two central parts(6,7) between the tool halves also move in the tiebar direction. Each central part has a tool carrier(12,13) which rotates about an axis(8,9) relative to a holder. One or more active connecting systems for joining molded parts in the central parting plane(23) are positioned close to a side face of a tool carrier. Each active connecting system can connect molded parts from one or more pairs of cavities. Each system has its own drive unit allowing it to operate independently. The active connecting system may include a slide or a system for enclosing a part and may be located at least partly inside a tool carrier. A mechanism(26,27) for centering the central tool parts(6,7) relative to the tool halves(3,5) are symmetrically arranged so that the injection molding tool can be closed in 90[deg] and/or 180[deg] steps. Preset positions of the tool carriers(12,13) are fixed by locking pins on a base or cantilevered arm inserting into bores in a tool carrier.. A rotating unit(16,17) connects each tool carrier to a base. Central parts of the tool are mounted on a linear guide(11) and are supported on the tiebars by a lower and/or upper traverse(14,15). Central tool parts can be adjusted relative to both tool halves with respect to angle and alignment. Tool half and tool carrier movements are co-ordinated to enable the central parting plane(23) to open twice as much as the other two planes. An independent claim is included for a process for molding a multi-part component in an injection molding machine in which: a) a first and second part of the component are molded in the first(22) and third(24) parting planes of a closed tool while simultaneously, in a central second parting plane(23) at least one first and second part are joined together using an active connecting system; and b) the tool is opened along all three parting planes and the first and second tool carriers are rotated around their axes(8,9) so that the parts produced in the first and third parting planes(22,24) are moved with the tool carriers; the tool is then reclosed and the process repeated. |
