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Sewing machine.

机译:缝纫机。

摘要

A method for approaching a predeterminable end point of a seam spaced from the edge of a workpiece, with a sewing machine which comprises an adjustable needle and lower transport, a sensor arranged before the needle and triggering the process for the positioning of the needle in the end point during passage through the edge, a pulse generator coupled with the main shaft of the sewing machine for the delivery of counting pulses for a pulse counter, and a micro-computer which controls the action of the feed means as a function of the pulses originating from the sensor and from the pulse generator. To execute a desired shortening of the length of one or more of the last stitches before the end point of a seam, the workpiece is moved back by the difference between the desired stitch length and the stitch length set by the setting device, before execution of the adjusted feed. For correction of the stitch length executed during the feed phase, the cloth feeder is connected with a switching gear controlled by the micro-computer for controlled switching on during its reversed feed phase which precedes the respective forward feed phase.
机译:一种用于逼近与工件边缘间隔开的接缝的预定端点的方法,该缝纫机包括:可调针和下部输送装置;传感器,其布置在针之前,并触发将针定位在针头中的过程。通过边缘的终点,与缝纫机主轴相连的脉冲发生器,用于为脉冲计数器输送计数脉冲,以及微型计算机,该计算机根据脉冲来控制进给装置的动作源于传感器和脉冲发生器。为了缩短接缝终点之前的最后一个或多个针迹的长度,在执行以下操作之前,将工件移回所需针迹长度和设置装置设置的针迹长度之间的差值调整后的Feed。为了校正在进给阶段执行的线圈长度,布料进给器与由微型计算机控制的开关装置相连,以在其反向进给阶段(在相应的向前进给阶段之前)期间受控地接通。

著录项

  • 公开/公告号ES536092A0

    专利类型

  • 公开/公告日1985-12-01

    原文格式PDF

  • 申请/专利权人 PFAFF INDUSTRIEMASCHINEN GMBH;

    申请/专利号ES19840536092

  • 发明设计人

    申请日1984-09-20

  • 分类号D05B69/22;

  • 国家 ES

  • 入库时间 2022-08-22 07:37:53

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