公开(公告)号：US3626680A

公开(公告)日：1971-12-14

申请号：US3626680D

申请日：1969-12-15

Applicant: LEESONA CORP

Inventor： WHITNEY WILLIAM R

IPC: B65H63/00 ,  D01H5/60 ,  D01H13/14 ,  D01H13/16 ,  D01H13/26

CPC classification number: D01H13/145 ,  B65H63/003 ,  B65H2701/31

Abstract: STRAND HANDLING APPARATUS INCLUDING A SYSTEM FOR CONTROLLING A CYCLING TENDER WHICH SCANS AND SERVICES BOBBIN WINDING STATIONS ON A SPINNING OR TWISTING MACHINE, OR THE LIKE. THE CONTROL SYSTEM PROVIDES A SIGNAL INDICATING WHEN A STATION BEING SCANNED IS OPERATIONAL AND A SERVICE SIGNAL WHEN THE STATION REQUIRES SERVICING UPON RECEIPT OF BOTH OF THESE SIGNALS THE CONTROL SYSTEM INITIATES A WORK CYCLE OF THE TENDER TO SERVICE THE STATION. THE SERVICE SIGNAL IS PROVIDED EITHER WHEN THE BOBBIN AT THE SCANNED STATION IS READY TO BE DOFFED OR WHEN THERE IS AN INTERRUPTION IN THE ADVANCING STRAND TO THE BOBBIN. IF THERE ARE MORE THAN A PREDETERMINED NUMBER OF SUCH INTERRUPTION SIGNALS DURING A CYCLE, THIS SIGNAL IS RENDERED INEFFECTIVE BY THE CONTROL SYSTEM TO CAUSE SERVICING OF THE STATION. IF A ROLL-WRAP OCCURS ON A DRAFTING ROLL, AN INDICATOR WHICH COOPERATES IN PROVIDING THE OPERATIONAL SIGNAL IS MOVED TO A NON-OPERATIONAL POSITION SO THAT THIS SIGNAL IS NOT PROVIDED AND THEREAFTER THE TENDER BY-PASSES ONLY THE PARTICULAR STATION UNTIL THE STATION IS AGAIN PLACED IN OPERATIONAL CONDITION, AS BY AN ATTENDANT. WHEN THE INDICATOR IS MOVED TO ITS NON-OPERATIONAL POSITION IT CAUSES THE STRAND TO BE BROKEN PRIOR TO ENTERING DRAFTING ROLLS OF THE STATION.

公开(公告)号：US3498039A

公开(公告)日：1970-03-03

申请号：US3498039D

申请日：1968-07-29

Applicant: LEESONA CORP

Inventor： KENT EDWARD L ,  WHITNEY WILLIAM R

IPC: D01H13/14 ,  D01H13/18 ,  D01H13/26

CPC classification number: D01H13/188 ,  D01H13/145

公开(公告)号：US3619628A

公开(公告)日：1971-11-09

申请号：US3619628D

申请日：1969-11-18

Applicant: LEESONA CORP

Inventor： WHITNEY WILLIAM R

IPC: D01H13/14 ,  G01B7/12

CPC classification number: D01H13/145

Abstract: A machine for winding yarn packages and including a device for scanning a series of packages being wound on a spinning or twisting machine, or the like, and providing a signal for initiating doffing of full packages. A pair of sensing elements are responsive to signals from opposite portions of a full package for actuating a signal device to commence the doffing operation. These sensing elements are sensitive, one to the signals from each of opposite portions of the full package, and are connected so that only when both of the sensing elements are actuated is a circuit completed to the signal device which initiates doffing.

公开(公告)号：US3672143A

公开(公告)日：1972-06-27

申请号：US3672143D

申请日：1970-10-20

Applicant: LEESONA CORP

Inventor： WHITNEY WILLIAM R

IPC: D01H13/14 ,  D01H9/10

CPC classification number: D01H13/145

Abstract: A spinning frame has a plurality of stations for spinning roving into yarn and winding the yarn onto a bobbin. A tender moves passed the stations and stops at any of the stations requiring servicing such as, for example, doffing a filled bobbin and donning an empty bobbin. The tender then continues patrolling the stations until it comes upon another station requiring servicing. As the tender patrols the stations, a first sensing device on the tender scans the stations to determine whether or not the yarn is advancing normally and provides an appropriate signal. A signal from a second sensing device indicates whether or not the station is operational. The signal from the first sensing device is combined with the signal from the second sensing device to stop the tender only at an operational station requiring servicing, whereupon the servicing cycle commences. At the end of servicing, if the yarn is advancing normally the tender resumes its patrolling. If the yarn is not advancing properly, another servicing cycle is commenced. Thereafter, if the yarn is still not advancing properly, the roving is automatically broken above the usual drafting rolls of the station as a signal flag is positioned to indicate to the second sensing device that the particular station is non-operational. The tender is not stopped at a non-operational station. The two sensors may both be phototransducers. The first sensor provides a particular fluctuating signal responsive to a transverse alternating motion of the yarn which results from ballooning of the yarn as it is advanced longitudinally while being wound onto the bobbin, and this signal results in the tender passing the station and continuing its patrolling. All other fluctuating signals from the first sensor, such as may be caused by ambient light, either day light or artificial light, for example, as well as signals resulting from movement of the tender while patrolling the stations, are filtered out.

Abstract translation: 纺纱机具有多个用于纺纱成纱线并将纱线卷绕到筒管上的工位。 招标动作通过站点并停在需要维修的任何站点，例如落纱一个填充的筒管和穿一个空的筒管。 然后，招标人继续巡视车站，直到其他车站需要维修。 当招标巡视车站时，招标上的第一个感应装置扫描车站，以确定纱线是否正常前进，并提供适当的信号。 来自第二感测装置的信号指示站是否可操作。 来自第一感测装置的信号与来自第二感测装置的信号组合，仅在需要维修的操作台停止招标，从而维修周期开始。 在服务结束时，如果纱线正常推进，投标将恢复巡逻。 如果纱线不能正常前进，则开始另一个维修周期。 此后，如果纱线仍然不能正确地前进，那么当信号标志被定位以向第二感测装置指示该特定工位是不可操作的时，粗纱在工作台的通常牵伸辊上方自动断裂。 招标并非在非营运站停止。 两个传感器都可以是光电转换器。 第一传感器提供响应于纱线的横向交替运动的特定波动信号，纱线的横向交替运动是由于纱线在被卷绕到筒管上时纵向推进而导致纱线膨胀，并且该信号导致招标通过车站并继续其巡逻 。 过滤掉来自第一传感器的所有其它波动信号，例如可能是由环境光，日光或人造光引起的，以及在巡视台站期间因招标移动而产生的信号。

公开(公告)号：US3449902A

公开(公告)日：1969-06-17

申请号：US3449902D

申请日：1968-03-20

Applicant: LEESONA CORP

Inventor： WHITNEY WILLIAM R

IPC: D01H13/04 ,  D01H9/10

CPC classification number: D01H13/04