| 摘要 |
<p>The purpose of the present invention is to suppress increase in size, and cost, of a drive mechanism (732) for driving a regulating member (82) that regulates nozzle insertion and release to and from a plurality of nozzle housing sections (81), in a nozzle replacement housing machine (7) having arranged therein a plurality of nozzle housing units (81U) having the nozzle housing sections (81) arranged circumferentially therein. Three shutters (82) are provided corresponding to three nozzle housing units (81U). Each shutter (82) assumes either an insertion/removal restricted state whereby the insertion and removal of nozzles (N) is restricted for all nozzle housing sections, or an insertion/removal permitted state in which insertion and removal are permitted for all nozzle housing sections, for each nozzle housing section (81) of the corresponding nozzle housing unit (81U). A slider (84) is provided whereby the state of each shutter (81) can be switched as a group, to either the insertion/removal restricted state or the insertion/removal permitted state, by the slider (84) moving in conjunction with each shutter (82). An X-axis cylinder (732) in a shutter operation mechanism (73) is capable of moving the slider (84) and switching, in a batch, the state of the three shutters (82).</p> |
