Method and apparatus for sewing a seam ending at a predetermined location
    1.
    发明授权
    Method and apparatus for sewing a seam ending at a predetermined location 失效
    缝制在预定位置结束的接缝的方法和装置

    公开(公告)号:US4974535A

    公开(公告)日:1990-12-04

    申请号:US352869

    申请日:1989-05-17

    CPC分类号: D05B69/22

    摘要: By means of this method and apparatus for sewing a seam, it is possible to end a seam exactly at a predetermined location. When the predetermined location is reached, the forward movement of the sewing material is interrupted, and only the stitch that had been begun at the time of the interruption is completed. In this way, on the one hand, visually attractive seams can be produced and, on the other hand, it is possible to sew a small part onto a main part with a seam which does not extend past the small part.

    摘要翻译: 通过这种用于缝合缝的方法和装置,可以在预定位置精确地结束接缝。 当到达预定位置时,缝合材料的向前移动被中断,并且只有在中断时已经开始的针迹完成。 以这种方式,一方面可以产生视觉吸引力的接缝,另一方面,可以用不延伸超过小部分的接缝将小部分缝合到主要部分上。

    Button feeding device for button attaching machines
    2.
    发明授权
    Button feeding device for button attaching machines 失效
    按钮连接机的按钮进给装置

    公开(公告)号:US4714034A

    公开(公告)日:1987-12-22

    申请号:US869110

    申请日:1986-05-30

    IPC分类号: D05B3/22 D05B3/14

    CPC分类号: D05B3/14

    摘要: A button feeding device includes a button alignment shaft having a longitudinal axis which is displaceable with respect to the longitudinal axis of the main drive shaft. The button alignment shaft and the main drive shaft are advantageously linked for rotation by a coil spring. The device has a pin holder which aligns the button and transfers it into a button clamp, a carriage being provided to move the pin holder over a substantially linear quadrangular path.

    摘要翻译: 按钮进给装置包括按钮对准轴,该按钮对准轴具有可相对于主驱动轴的纵向轴线移位的纵向轴线。 按钮对准轴和主驱动轴有利地通过螺旋弹簧连接以便旋转。 该装置具有一个针脚保持器,其将按钮对准并将其传送到按钮夹具中,提供滑架以将销保持器移动到基本上线性的四边形路径上。

    Digital control system for the speed of a sewing machine
    3.
    发明授权
    Digital control system for the speed of a sewing machine 失效
    用于缝纫机速度的数字控制系统

    公开(公告)号:US4586123A

    公开(公告)日:1986-04-29

    申请号:US555186

    申请日:1983-11-25

    申请人: Horst Plassmeier

    发明人: Horst Plassmeier

    CPC分类号: H02P29/0016

    摘要: A fully digital control system for the speed of the arm shaft of a sewing machine provides separate counters for counting a counting frequency during the pulses and pulse intervals of a lower frequency increment generator measuring the actual value of the shaft speed. The inverse of the last complete count thus registered is compared with a set point value in a microcomputer preprogrammed with data blocks representing these set point values and provided with parameters for the respective keying ratios associated therewith. The control bus and data bus connecting the counters with the microcomputer also connect the latter to another unit including a bit-rate generator and a programmable retriggerable multivibrator from which the digital output signal is emitted to effect direct control over a DC motor or to drive a clutch connected to the shaft.

    摘要翻译: 用于缝纫机臂轴速度的全数字控制系统提供分开的计数器,用于在测量轴速度的实际值的低频增量发生器的脉冲和脉冲间隔期间计数计数频率。 将如此登记的最后一个完成计数的倒数与预先用表示这些设定值的数据块进行了预编程的微型计算机的设定值进行比较,并提供与其相关的各个键控比率的参数。 连接计数器与微型计算机的控制总线和数据总线也将后者连接到包括比特率发生器和可编程可重触发多谐振荡器的另一单元,从该数字输出信号发射数字输出信号,以直接控制直流电机或驱动 离合器连接到轴。

    Drive device for a two-threaded chain-stitch buttonhole sewing machine
    4.
    发明授权
    Drive device for a two-threaded chain-stitch buttonhole sewing machine 失效
    双线链式针孔缝纫机驱动装置

    公开(公告)号:US4570555A

    公开(公告)日:1986-02-18

    申请号:US661787

    申请日:1984-10-17

    CPC分类号: D05B69/125

    摘要: The disclosure concerns a drive device for a double thread chain-stitch buttonhole sewing machine. The machine has a first drive shaft for driving the sewing needle and for moving the cloth support plate for sewing. It has a separate worm shaft for moving the cloth support plate to the sewing position and also for operating a knife for cutting the buttonhole. A first respective electromagnetic clutch operates the sewing needle drive shaft, and a second respective electromagnetic clutch operates an intermediate shaft which then operates the worm shaft for operating the cloth support plate and knife operating shaft are provided. A drive shaft is connected with the armature part of the first electromagnetic clutch on the sewing needle driving shaft. That armature part is gear connected with an armature part of the second clutch on the intermediate shaft. Activation of the clutches controls which of the shafts operates, as the clutches include rotors which rotate with respect to their respective shafts or are clutched to cause rotation of the shafts.

    摘要翻译: 本发明涉及一种双线链式针孔锁眼机的驱动装置。 机器具有用于驱动缝纫针并移动布支撑板进行缝合的第一驱动轴。 它具有用于将布支撑板移动到缝合位置的单独的蜗杆轴,并且还用于操作用于切割钮孔的刀。 第一个相应的电磁离合器操作缝纫针驱动轴,第二个相应的电磁离合器操作中间轴,然后中间轴操作蜗杆轴,用于操作布支撑板,并提供刀操作轴。 驱动轴与第一电磁离合器的电枢部分连接在缝纫针驱动轴上。 衔铁部分与中间轴上的第二离合器的电枢部分齿轮连接。 离合器的激活控制哪些轴的操作,因为离合器包括相对于它们相应的轴线旋转的转子或者被离合以引起轴的旋转。

    Workpiece guide for automatic sewing machine
    5.
    发明授权
    Workpiece guide for automatic sewing machine 失效
    自动缝纫机工件指南

    公开(公告)号:US4394840A

    公开(公告)日:1983-07-26

    申请号:US326193

    申请日:1981-12-01

    CPC分类号: D05B35/105

    摘要: A thread guide is used in combination with a standard sewing machine having a work table and a fabric feed for displacing a workpiece to be sewn on the table in a predetermined forward longitudinal direction through a sewing station on the table. The fabric guide comprises a transversely elastically deformable band extending generally in the workpiece-displacement direction and oriented on edge and holders engaging the band at a plurality of longitudinally offset locations for securing the band on the table with each of the locations in any of a multiplicity of transversely offset positions. Thus the band can be deformed into and held in a nonstraight shape. The guide further has a carriage displaceable on the table along the guide and provided with a clip fastenable on the workpiece, and a counterweight urging the carriage and clip longitudinally in a backward longitudinal direction opposite the forward longitudinal direction. The band is a ribbon of flexible spring steel that is longitudinally substantially inextensible and that is only deformable transversely to its plane.

    摘要翻译: 螺纹导引器与具有工作台和织物馈送的标准缝纫机组合使用,用于通过桌子上的缝纫台在预定的正向长度方向上移动要缝制在桌子上的工件。 织物引导件包括横向可弹性变形的带,其大致在工件移动方向上延伸并且在边缘上定向并且保持件在多个纵向偏移位置处接合带,用于将带固定在台上,其中每个位置具有多个 的横向偏移位置。 因此,带可以变形并保持在非直线形状。 引导件还具有可沿着引导件在工作台上移位的滑架,并且具有可固定在工件上的夹子,以及在与正向纵向方向相反的后向纵向方向上纵向推动托架和夹持件的配重。 该带是柔性弹簧钢带,其长度基本上不可延伸,并且只能横向于其平面变形。

    Sewing machine with edge guide
    6.
    发明授权
    Sewing machine with edge guide 失效
    缝边机带边缘导轨

    公开(公告)号:US4226197A

    公开(公告)日:1980-10-07

    申请号:US884807

    申请日:1978-03-09

    CPC分类号: D05B69/24

    摘要: A sewing machine having an edge guide for producing a stitched seam along an edge of a workpiece terminating at another edge forming an angle with the first has an optical device for directing a pencil or beam of light toward a reflective surface which underlies the workpiece and is covered thereby until the movement of the workpiece exposes the reflective surface at this other edge. The optical detector then produces a signal for initiating a control function, e.g. the change of stitch pattern to tie off the end of the previously sewn seam or to lodge the needle in the fabric so that the workpiece may be turned to bring the other edge into contact with the edge guide. The control system can include a programmer for the successive stitching operations which are initiated in succession in response to the optical sensor.

    摘要翻译: 具有边缘引导件的缝纫机沿着与第一边缘形成一定角度的另一边缘的工件的边缘产生缝合接缝具有用于将铅笔或光束引导到工件下方的反射表面的光学装置, 被覆盖,直到工件的移动在该另一边缘处露出反射表面。 光学检测器然后产生用于启动控制功能的信号,例如, 改变缝合图案以将先前缝合的接缝的末端扣紧或将织物中的针提到织物中,使得工件可以转动以使另一个边缘与边缘引导件接触。 控制系统可以包括用于响应于光学传感器而连续启动的连续拼接操作的编程器。

    Circulating conveyor
    7.
    发明授权
    Circulating conveyor 失效
    循环输送机

    公开(公告)号:US4212384A

    公开(公告)日:1980-07-15

    申请号:US940197

    申请日:1978-09-07

    申请人: Erwin Grube

    发明人: Erwin Grube

    IPC分类号: B65G17/20 B65G17/32

    CPC分类号: B65G17/20 B65G2201/02

    摘要: A circulating conveyor, e.g. of the type in which a load carrier passes along an endless track and supports material to be conveyed, e.g. garments suspended by hangers from the load carrier, comprises in addition to the circulating track, a load carrier which runs with a plurality of wheels on the endless rail and has a displacement chain formed by a multiplicity of rigid links each constituted by a rigid bar hinged at its ends to the adjoining links. The lateral flanks of the bar are engageable by a friction drive roller and a counter roller to displace the chain and hence the load carrier along the circulating path.

    摘要翻译: 循环输送机,例如 其中负载载体沿着环形轨道通过并且支撑要被输送的材料的类型。 衣架由吊架悬挂在承载架上,除循环轨道之外,还包括一个负载承载件,该承载架与环形轨道上的多个车轮一起运行,并具有由多个刚性连杆形成的位移链,每个刚性连杆由刚性杆铰接 在其末端连接相邻的连接。 杆的横向侧面可通过摩擦驱动辊和相对辊接合,以便沿着循环路径移动链条,从而使负载托架移位。

    Method of and apparatus for feeding a workpiece along a surface of a
sewing machine
    8.
    发明授权
    Method of and apparatus for feeding a workpiece along a surface of a sewing machine 失效
    沿着缝纫机的表面供给工件的方法和装置

    公开(公告)号:US3935826A

    公开(公告)日:1976-02-03

    申请号:US485293

    申请日:1974-07-02

    IPC分类号: D05B27/04

    CPC分类号: D05B27/04

    摘要: A workpiece is held down against a support surface by a holddown foot. Then a feed foot is brought into engagement with this workpiece with its displacement speed decreasing continuously and uniformly until the feed foot comes to a stop against the workpiece, pressing it against the support surface. Thereafter the holddown foot is raised away from the workpiece and the feed foot slides the workpiece a predetermined distance along the surface toward the sewing station. The holddown foot then is brought into engagement with the workpiece on the surface, again with its speed decreasing uniformly and continuously until it comes to a stop on the workpiece. The feedfoot is lifted away from the workpiece and brought back into a position to advance it again. Each of these feet is carried on a rod pivoted of a ternary link guided on a frame and having its remaining pivot connected via a rigid lever also pivoted on the frame and oscillated back and forth by an eccentric arrangement operated by the drive shaft of the sewing machine.

    摘要翻译: 通过压脚将工件压靠支撑表面。 然后,进给脚与该工件接合,其位移速度连续均匀地减小,直到进给脚停止在工件上,将其压靠在支撑表面上。 此后,压脚从工件上升起,进给脚将工件沿表面向缝纫台滑动预定距离。 然后将压脚与表面上的工件接合,同时其速度均匀且连续地减小,直到其停在工件上。 将进给脚从工件上提起并带回到再次推进的位置。 这些脚中的每一个都承载在由框架上引导的三元连杆枢转的杆上,并且其剩余的枢轴经由刚性杠杆连接,该刚性杆也在框架上枢转并且通过由缝纫机的驱动轴操作的偏心装置来回摆动 机。

    Sewing machine having a device actuable by a pressure medium for
applying a variable force to a presser element
    9.
    发明授权
    Sewing machine having a device actuable by a pressure medium for applying a variable force to a presser element 失效
    缝纫机具有可通过压力介质致动的装置,用于向压紧元件施加可变的力

    公开(公告)号:US4981094A

    公开(公告)日:1991-01-01

    申请号:US361376

    申请日:1989-06-05

    IPC分类号: D05B29/02

    CPC分类号: D05B29/02

    摘要: A device in a sewing machine for applying a variable downward force to a presser bar. A guide lever engages the presser bar and in turn is urged downward by the force of a spring. The bottom of the spring is held fixed to a lock sleeve on the guide lever. The top of the spring is fixed to a sleeve on a shaft which is disposed vertically inside the spring. The shaft passes freely out the bottom of the spring and through the guide lever without engaging either of these. The shaft and thereby the top of the spring are urged downward by a controllable pneumatic device in order to set the compression of the spring and thereby the downward force applied to the pressure bar by the guide lever. The pneumatic device preferably includes a pair of separately controlled pneumatic pistions arranged in series for moving the shaft to at least two predetermined positions.

    摘要翻译: 缝纫机中的装置,用于向压杆施加可变向下的力。 导向杆接合压杆,并且由于弹簧的力而被向下推动。 弹簧的底部固定在导杆上的锁定套筒上。 弹簧的顶部固定在垂直设置在弹簧内的轴上的套筒上。 轴自由地从弹簧的底部通过引导杆,而不使其接合。 因此,轴和由此弹簧的顶部被可控气动装置向下推动,以便设定弹簧的压缩,从而由引导杆施加到压力杆的向下的力。 气动装置优选地包括一对串联布置的单独控制的气动活塞,用于将轴移动到至少两个预定位置。

    Sewing machine having means for terminating seams at a predetermined
place
    10.
    发明授权
    Sewing machine having means for terminating seams at a predetermined place 失效
    具有用于在预定位置终止接缝的装置的缝纫机

    公开(公告)号:US4858545A

    公开(公告)日:1989-08-22

    申请号:US52717

    申请日:1987-05-21

    IPC分类号: D05B69/00 D05B69/20

    CPC分类号: D05B69/20

    摘要: A sewing machine adapted for moving a workpiece in a downstream direction for sewing a seam therein, and for automatically terminating the seam at a predetermined point a selected distance from a trailing edge of the workpiece. An edge sensor on a base is located a predetermined distance upstream of the sewing point for sensing the downstream passage of the trailing edge, and generating edge sensing signals in response thereto. A stroke sensor on the base senses the length of the strokes of the feed dog and generates stroke length signals which are indicative of the stroke length and of the length of the stitches. A stopping device is provided on the base for being actuated to engage the workpiece to stop its movement when the sewing needle is at the predetermined point for terminating the seam; and a control system receives the edge sensing signals and the stroke length signals, determines therefrom a time when the sewing needle will be at the predetermined point, and generates a stopping signal for actuating the stopping device at that time.

    摘要翻译: 一种适于在下游方向上移动工件以缝合其中的接缝的缝纫机,并且用于在距工件的后缘一定距离的预定点处自动地终止接缝。 基座上的边缘传感器位于缝合点上游预定距离处,用于感测后缘的下游通道,并响应于此产生边缘感测信号。 基座上的行程传感器感测进给针的行程的长度,并产生指示行程长度和针迹长度的行程长度信号。 在所述基座上设置有止动装置,用于当缝纫针处于预定点以终止接缝时被致动以接合工件以停止其运动; 并且控制系统接收边缘检测信号和行程长度信号,从而确定缝纫针处于预定点的时间,并且产生用于在此时启动停止装置的停止信号。