公开(公告)号：US3751896A

公开(公告)日：1973-08-14

申请号：US3751896D

申请日：1971-06-21

Applicant: LEESONA CORP

Inventor： FORD M

IPC: D01H13/14 ,  D01H13/18

CPC classification number: D01H13/145 ,  D01H13/188

Abstract: Automatic servicing apparatus for spinning stations of one or more spinning frames includes provision for severing and clamping roving to stop feeding of the roving and to present a cleanly severed supply end of the roving in convenient position for subsequent thread-up. A carriage patrols the spinning stations and stops at any station requiring servicing, whereupon mechanism on the carriage doffs the bobbin being wound at the station, donns an empty bobbin core and normally starts the yarn spun from the roving winding onto the empty bobbin. If a station cannot be adequately serviced by the carriage mechanism a signal initiates operation of a scissor on the carriage and as the scissor is moved to an operative position for cutting the roving upstream of the drafting roll stand a roving clamp clamps the severed end of the roving extending from the roving supply. The scissor is then retracted and the station is rendered inoperative by the prior movement of a target on the clamp to a position in which a photo responsive sensor is not actuated so that the carriage subsequently by-passes the station.

Abstract translation: 用于一个或多个纺纱机的纺纱站的自动维修设备包括用于切断和夹紧粗纱以停止粗纱的供给的设备，并且将纱线的干净切断的供应端呈现在便于接下来的螺纹连接的位置。 车站巡视纺纱站，停在任何需要维修的车站，因此，车架上的机构将脱开在车站上卷绕的筒管，将空筒管芯放下，通常将从卷绕卷筒纺出的纱线启动到空筒管上。 如果通过滑架机构不能充分地维修车站，信号将启动滑架上的剪刀的操作，并且当剪刀移动到用于在牵伸辊架的上游切割粗纱的操作位置时，粗纱夹将夹紧刀片的切断端 粗纱从粗纱供应延伸。 然后，剪刀被缩回，并且通过目标在夹具上的先前移动使得工作站不起作用到其中不启动光敏响传感器的位置，使得滑架随后旁路该台。