| 摘要 |
The present invention relates to a dual hopper system which comprises: a plurality of hoppers which selectively provides resins by being connected to an injection machine; ventilation tools which are installed to emit air to inside each hopper; a control unit which is set to use one of hoppers among the hoppers; and an absorption tool which absorbs foreign materials from inside by being connected to the hoppers. The control unit: sets one hopper as a holding state when using the other hopper among the plurality of hoppers; and controls the ventilation tool to emit air to inside the other hopper; and controls the absorption tool to absorb foreign materials inside the other hopper, thereby preventing a worker from cleaning by climbing up the injection machine. Therefore, the dual hopper system: prevents dropping accidents of the worker; and reduces waiting time of the injection machine when changing type or color of injection resin. |
