Sewing machine with thread monitor
    1.
    发明授权
    Sewing machine with thread monitor 失效
    缝纫机带螺纹监视器

    公开(公告)号:US5018465A

    公开(公告)日:1991-05-28

    申请号:US469566

    申请日:1990-04-09

    CPC分类号: D05B59/02

    摘要: The control circuit of a catch thread device has a counter for the main shaft of the swing machine. The counter counts the number of revolutions of the main shaft 26 during the reception of one of at least two signal intensities and is reset to its initial value when this signal intensity changes to the other signal intensity. When a predetermined maximum number of revolutions is reached, the counter emits a signal indicating a thread fault.

    摘要翻译: PCT No.PCT / EP88 / 00800 Sec。 371日期1990年04月9日 102(e)日期1990年4月9日PCT提交1988年9月3日PCT公布。 公开号WO89 / 03908 日期:1989年5月5日。止动螺纹装置的控制回路具有摆动机主轴的计数器。 该计数器在接收至少两个信号强度之一期间对主轴26的转数进行计数,并且当该信号强度变为另一个信号强度时将其重置为其初始值。 当达到预定的最大转数时,计数器发出指示线程故障的信号。

    Sewing device for producing form seams
    2.
    发明授权
    Sewing device for producing form seams 失效
    用于生产接缝的缝纫设备

    公开(公告)号:US4088085A

    公开(公告)日:1978-05-09

    申请号:US764814

    申请日:1977-02-02

    申请人: Walter Hager

    发明人: Walter Hager

    CPC分类号: D05B39/00 D05B57/14

    摘要: A sewing device for producing form seams is usable with a sewing machine having a needle which reiprocates in respect to a cooperating rotary hook. The sewing machine also includes a guide mechanism for guiding a workpiece along a path corresponding to the configuration of the form seam in respect to the needle. The device includes a workpiece support member having a stitch hole for the passage of the needle and a force-away surface bounding the stitch hole. The device includes a plate which is mounted so that the force-away surface is disposed between the needle and the rotary hook and it is mounted for vertical movement and horizontal oscillatory movement. The actuating means for the device causes a movement of the force-away surface in timed relationship to the reciprocation of the needle and in accordance with the movement of the workpiece in a direction opposite to the movement of the workpiece with respect to the needle and the rotary hook.

    摘要翻译: 用于生产接缝的缝纫装置可用于具有相对于协作的旋转钩复制的针的缝纫机。 该缝纫机还包括一个引导机构,用于沿相对于针的形状接缝的构型对应的路径引导工件。 该装置包括具有用于针的通过的缝合孔的工件支撑构件和限定缝合孔的止力表面。 所述装置包括安装成使得所述止推表面设置在所述针和所述旋转钩之间并且安装成用于垂直运动和水平振荡运动的板。 用于该装置的致动装置引起作用力表面与针的往复运动的时间关系,并且根据工件在与工件相对于针的运动相反的方向上的移动, 旋梭

    Sewing machine having a system for approaching a predetermined end point
of a seam
    3.
    发明授权
    Sewing machine having a system for approaching a predetermined end point of a seam 失效
    缝纫机具有接近接缝的预定终点的系统

    公开(公告)号:US4528923A

    公开(公告)日:1985-07-16

    申请号:US624602

    申请日:1984-06-26

    申请人: Walter Hager

    发明人: Walter Hager

    CPC分类号: D05B69/20

    摘要: A sewing machine with at least one feed means, the feed amount of which is variable by means of a positioning device acting on at least one positioning gearing; with a system for approaching a predeterminable end point of a seam in spaced relation to the edge of a workpiece; with a sensor disposed before the needle which during passage of the edge triggers the process for the positioning of the needle in the end point; with a pulse generator coupled with the main shaft of the sewing machine for the delivery of counting pulses for a pulse counter and a microcomputer which interrupts the action of the feed means as a function of the pulses emanating from the sensor and from the pulse generator in the end point. For the exact control of the insertion of the needle into the predetermined end point, the microcomputer is connected with a displacement system for an abutment for the presettable limitation of the movement deflection of a follow-up element coupled with the positioning gearing and with a servo system moving the latter against the abutment. For feed reversal immediately after execution of the stitch formation in the end position, the follow-up element is coupled with the positioning gearing through a freewheel coupling. To prevent displacement of the abutment by reaction of the forces occurring when the stitch length is shortened, the displacement system is connected with the abutment through a self-locking gearing.

    摘要翻译: 一种具有至少一个进给装置的缝纫机,其进给量通过作用在至少一个定位齿轮上的定位装置而变化; 具有用于接近与工件的边缘间隔开的接缝的可预定端点的系统; 设置在针之前的传感器,其在边缘通过期间触发用于将针定位在终点中的过程; 具有与缝纫机的主轴连接的脉冲发生器,用于递送用于脉冲计数器和微计算机的计数脉冲,该微计算机根据从传感器和脉冲发生器发出的脉冲中断馈送装置的动作 终点。 为了精确控制将针插入到预定端点,微型计算机与用于邻接的位移系统连接,用于与定位齿轮联动的跟随元件的运动偏转的预设限制以及伺服 系统将后者抵靠基台移动。 为了在执行在端部位置之后的线圈形成之后立即进给反向,后续元件通过自由联轴器与定位齿轮联接。 为了防止当缝合长度缩短时产生的力的反作用力的位移,位移系统通过自锁齿轮与邻接部连接。

    Method for effecting the sewing of a pocket stitch
    4.
    发明授权
    Method for effecting the sewing of a pocket stitch 失效
    用于缝制口袋针迹的方法

    公开(公告)号:US4073252A

    公开(公告)日:1978-02-14

    申请号:US705423

    申请日:1976-07-15

    IPC分类号: D05B39/00 D05B3/12

    CPC分类号: D05B39/00

    摘要: A pocket stitch is sewn on cut workpiece parts which are guided into operative association with a reciprocating needle which effects a straight stitch when it is reciprocated and also may be swung from side to side to effect a zig-zag stitching. The workpiece is guided so as to form at least one substantially U-shape straight stitch having spaced apart leg portions and the stitch is secured by guiding the workpiece to effect the formation of a barring stitch at the ends of each leg portion by causing the needle to form a zig-zag stitch at such location. The sewing machine for sewing the pocket cuts includes a needle bar which may be swung during the operation of the drive mechanism or the zig-zag control mechanism may be shifted to effect the formation of a straight stitch. A rotatable cam which is driven by the drive mechanism positions a clamping plate having a substantially U-shape slot which permits reciprocation of the needle through a workpiece carried thereon. The cam includes means for controlling the swinging of the needle to effect the zig-zag stitching and for controlling the straight stitching operation of the needle and it also has means for controlling the shifting of the workpiece to follow the outline. The device can also effect the formation of a double U-shaped stitch in which the U-shape portion is formed by two spaced apart straight stitches and a barring stitch is used at each end of the leg portions which is formed by a zig-zag stitch which is effected transversely to the straight stitches.

    摘要翻译: 在切割的工件部件上缝制有口袋针迹,这些零件被引导成与往复式针头有效联动的往复式针头,当往复运动时它能够进行直线针迹,并且也可以从一侧到另一侧摆动以进行曲折缝合。 工件被引导以形成具有间隔开的腿部的至少一个大致U形的直线迹,并且通过引导工件来固定线圈,以通过使针头在每个腿部的端部处形成禁止缝合 在这样的位置形成之字形针迹。 用于缝制口袋切口的缝纫机包括可以在驱动机构的操作期间摆动的针杆,或者可以移动之字形控制机构以形成直线针迹。 由驱动机构驱动的可旋转凸轮定位具有大致U形槽的夹持板,该夹持板允许针通过其上承载的工件的往复运动。 凸轮包括用于控制针的摆动以实现Z形缝合并用于控制针的直线缝合操作的装置,并且还具有用于控制工件沿着轮廓移动的装置。 该装置还可以形成双U形针迹,其中U形部分由两个间隔开的直线针迹形成,并且在由Z字形形成的腿部的每个端部使用禁止针迹 横向于直线针迹产生的针迹。

    Process and apparatus for preparing a seam
    5.
    发明授权
    Process and apparatus for preparing a seam 失效
    制备海绵的方法和装置

    公开(公告)号:US5078068A

    公开(公告)日:1992-01-07

    申请号:US623372

    申请日:1991-01-03

    CPC分类号: D05B51/00 D05B69/20

    摘要: A processing and sewing machine arrangement for preparing a seam which is uninterrupted on a seam side facing the needle of the sewing machine. The arrangement includes a shuttle thread disturbance detection arrangement and a control arrangement activating a stopping arrangement for stopping the sewing machine after the shuttle thread disturbance has been detected and after a stitch formation cycle which has been begun is completed. A regulating mechanism for setting stitch length is set into a reverse stitching mode by the control arrangement while the fabric being sewn is moved backward by one stitch length. After the shuttle thread has been fed in, thread is knotted by at least one stitch with the needle thread in the same insertion hole in which the old shuttle thread is located such that the old shuttle thread is correctly knotted with the needle thread.

    摘要翻译: PCT No.PCT / EP89 / 00473 Sec。 371日期1991年1月3日 102(e)1991年1月3日PCT PCT 1989年4月28日PCT公布。 出版物WO89 / 12130 PCT 日期:1989年12月14日。一种加工缝纫机装置,用于准备在面向缝纫机的针的接缝侧不间断的接缝。 该装置包括穿梭线路干扰检测装置和控制装置,该控制装置在已经检测到梭线干扰之后并且在已经开始的针迹形成循环完成之后启动停止缝纫机的停止装置。 当缝制的织物向后移动一个针脚长度时,通过控制装置将用于设置针脚长度的调节机构设置为反向缝合模式。 在穿梭线被送入之后,线与针线在至少一个针脚上打结在与旧梭线所在的相同插入孔中,使得旧的梭线用针线正确地打结。

    Sewing machine having auxiliary work turning needle
    6.
    发明授权
    Sewing machine having auxiliary work turning needle 失效
    缝纫机具有辅助工作车削针

    公开(公告)号:US4542707A

    公开(公告)日:1985-09-24

    申请号:US627791

    申请日:1984-07-05

    CPC分类号: D05B35/107 Y10S112/03

    摘要: An auxiliary needle is supported by a shiftable and rotatable slide rod which extends in a slightly inclined position relative to the vertical and is guided by an extension in a guide slot. The upper portion of the guide slot extends at an angle relative to the slide rod. Therefore, if moved from its rest position downwardly into its working position, the auxiliary needle performs first a combined rotary and translational motion, and then, upon penetrating a workpiece, only a straight longitudinal motion.

    摘要翻译: 辅助针由可移动和可旋转的滑动杆支撑,该滑杆在相对于垂直方向稍微倾斜的位置上延伸并且由引导槽中的延伸部引导。 引导槽的上部相对于滑杆以一定角度延伸。 因此,如果从其静止位置向下移动到其工作位置,辅助针首先执行组合的旋转和平移运动,然后在穿透工件时仅仅是直的纵向运动。

    Buttonhole sewing machine
    7.
    发明授权
    Buttonhole sewing machine 失效
    钮扣缝纫机

    公开(公告)号:US4134346A

    公开(公告)日:1979-01-16

    申请号:US845942

    申请日:1977-10-27

    IPC分类号: D05B3/06 D05B3/08 D05B57/00

    CPC分类号: D05B3/08 D05B57/00

    摘要: A sewing machine for sewing buttonholes in a workpiece comprises a stationary lower part and an arm having one end pivotally mounted on the lower part and having an opposite end which carries a rotary hook which cooperates with a reciprocating needle carried in the lower part. The arm is pivotal relative to the base part to move the arm from a fixable sewing position with said hook spaced by a predetermined distance from the needle at a stitch-forming area to a rest position in which it is spaced away from the stitch-forming area. A thread-monitoring device is located adjacent the needle for monitoring the thread and detecting any breakage thereof. The machine includes a buttonhole cutting mechanism which is connected to the drive means so as to periodically cut the workpiece. A clamp is carried by the upper arm and it has a lower portion which rests on a resilient support which is biased upwardly by a spring. The upper part of the clamp carries a rod which is biased downwardly by a spring having a lower characteristic than the spring biasing the arm upwardly, and it engages over a presser frame to urge the frame into engagement with the workpiece. A locking mechanism is associated with the support upon which the lower clamping part rests, and it is effective to lock the support arm in a selected position whenever it is actuated by the thread monitor.

    摘要翻译: 一种用于在工件上缝制针孔的缝纫机包括固定的下部和臂,其一端可枢转地安装在下部上,并且具有相对的端部,该相对端承载与在下部中承载的往复针配合的旋转钩。 臂相对于基部枢转,以使臂从可固定的缝合位置移动,其中所述钩在缝合形成区域处与针间隔预定距离到静止位置,在该位置,其与缝合形成间隔开 区。 螺纹监测装置位于针附近,用于监测螺纹并检测其断裂。 该机器包括锁眼切割机构,其连接到驱动装置以周期性地切割工件。 夹具由上臂承载,并且其具有下部,该下部位于由弹簧向上偏置的弹性支撑件上。 夹具的上部具有由弹簧向下偏压的杆,该弹簧具有比弹簧向上偏压的弹簧的特征较低的特征,并且该弹簧接合在压脚框架上以推动框架与工件接合。 锁定机构与下部夹紧部分所在的支撑件相关联,并且每当由螺纹监视器致动时,将支撑臂锁定在选定位置是有效的。

    Method of sewing corners of a double seam, with a two-needle sewing
machine
    8.
    发明授权
    Method of sewing corners of a double seam, with a two-needle sewing machine 失效
    用双针缝纫机缝制双层缝的方法

    公开(公告)号:US4736699A

    公开(公告)日:1988-04-12

    申请号:US84480

    申请日:1987-08-11

    CPC分类号: D05B69/20

    摘要: A method of sewing the corners of a double seam, employing a two-needle machine the two needle rods of which each may be mutually independently engaged and disengaged. The method uses control means to arrive at the corner point of the inner seam, disengaging the internal needle rod, furthersewing to the corner point of the outer seam, stopping the sewing machine with the outer needle penetrating the workpiece, then rotating the workpiece, sewing the thus rotated outer seam, and engaging the inner needle rod. The sewing machine comprises at least one adjustable feed dog means, at least one sensor which is disposed ahead of the needles and which triggers the process of positioning the respective needle at the corresponding corner point, said triggering occurring when the edge of the workpiece passes said sensor, a pulse generator coupled to the main shaft of the sewing machine, which pulse generator provides counting pulses for a pulse counter, a microcomputer which controls the operation of the feed dog means in accordance with pulses emitted by the sensor and the pulse generator.To avoid a shortened stitch in the outer seam when forming stitches with the two needles in the region of the corner point of the inner seam, the stitch formation is carried out in two stitch forming cycles, in the first cycle stitch formation by the outer needle rod is prevented, and the advancing is reduced to the stitch length required to reach the corner point of the inner seam, and in the second cycle the inner needle rod is disengaged and the advancing is reduced to the distance comprising the difference between the normal stitch length (as set) and the stitch length executed in the first cycle.

    摘要翻译: 使用双针机缝制双缝的角部的方法,其中两个针杆各自可以相互独立地接合和分离。 该方法使用控制装置到达内缝的角点,使内针脱离,再到外缝的角点,使缝纫机与外针穿透工件停止,然后旋转工件,缝制 由此旋转的外部接缝,并且与内部针杆接合。 所述缝纫机包括至少一个可调整的进给爪装置,至少一个传感器设置在针的前面,并且触发将相应的针定位在相应角点处的过程,当工件的边缘通过所述 传感器,连接到缝纫机的主轴的脉冲发生器,该脉冲发生器为脉冲计数器提供计数脉冲;微计算机,其根据由传感器和脉冲发生器发出的脉冲控制馈送装置的操作。 为了避免在内接缝的角点的区域中与两针形成针迹而在外缝中缩短缝合,在两次缝合形成循环中进行线圈形成,在由外针形成的第一循环线圈中 杆被阻止,并且前进减小到到达内缝的角点所需的针距,并且在第二循环中,内针杆脱离,并且前进减小到包括正常缝合之间的差异的距离 长度(设定)和在第一周期中执行的针迹长度。

    Apparatus for monitoring shuttle thread supply of a sewing machine
    9.
    发明授权
    Apparatus for monitoring shuttle thread supply of a sewing machine 失效
    用于监测缝纫机穿梭线供应的装置

    公开(公告)号:US4693196A

    公开(公告)日:1987-09-15

    申请号:US810648

    申请日:1985-12-18

    申请人: Walter Hager

    发明人: Walter Hager

    CPC分类号: D05B59/02

    摘要: An arrangement for monitoring the shuttle thread reserve in a sewing machine with a lockstitch revolving shuttle and with a light-emitting diode, which sends a beam of light through openings in the bobbin housing and in the bobbin to a photodetector which triggers a switching pulse for an actuating device. To obtain maximum utilization of the residual thread, the photodetector is used at the same time as a pulse generator for a counter which controls the actuating device. The counter can be connected to a switch-off device of a drive motor for the sewing machine.

    摘要翻译: 一种用于监视具有平行横档梭子和发光二极管的缝纫机中的梭线保留装置,该发光二极管通过筒管外壳和筒管中的开口将光束发射到触发开关脉冲的光电检测器 一个致动装置。 为了获得残余线的最大利用率,光电检测器与用于控制致动装置的计数器的脉冲发生器同时使用。 计数器可以连接到缝纫机驱动电机的关闭装置。

    Method and apparatus for effecting the sewing of a pocket stitch
    10.
    发明授权
    Method and apparatus for effecting the sewing of a pocket stitch 失效
    用于影响口袋缝的方法和装置

    公开(公告)号:US3983825A

    公开(公告)日:1976-10-05

    申请号:US638184

    申请日:1975-12-05

    CPC分类号: D05B39/00

    摘要: A pocket stitch is sewn on cut workpiece parts which are guided into operative association with a reciprocating needle which effects a straight stitch when it is reciprocated and also may be swung from side to side to effect a zig-zag stitching. The workpiece is guided so as to form at least one substantially U-shape straight stitch having spaced apart leg portions and the stitch is secured by guiding the workpiece to effect the formation of a barring stitch at the ends of each leg portion by causing the needle to form a zig-zag stitch at such location. The sewing machine for sewing the pocket cuts includes a needle bar which may be swung during the operation of the drive mechanism or the zig-zag control mechanism may be shifted to effect the formation of a straight stitch. A rotatable cam which is driven by the drive mechanism positions a clamping plate having a substantially U-shape slot which permits reciprocation of the needle through a workpiece carried thereon. The cam includes means for controlling the swinging of the needle to effect the zig-zag stitching and for controlling the straight stitching operation of the needle and it also has means for controlling the shifting of the workpiece to follow the outline. The device can also effect the formation of a double U-shaped stitch in which the U-shape portion is formed by two spaced apart straight stitches and a barring stitch is used at each end of the leg portions which is formed by a zig-zag stitch which is effected transversely to the straight stitches.