Input device for sewing machine
    41.
    发明授权
    Input device for sewing machine 失效
    缝纫机输入装置

    公开(公告)号:US4665846A

    公开(公告)日:1987-05-19

    申请号:US758658

    申请日:1985-07-24

    摘要: An input device for sewing machines is disclosed which reads from a memory circuit an original sewing pattern which has been already stored, enlarging or reducing the coordinate data of the original sewing pattern in a desired scale, and prepare the coordinate data of sewing points between the flexing points thus obtained by enlargement or reduction in accordance with a desired stitch length data or stitch number data. The input device is adapted to convert the coordinate data of the original sewing pattern to the coordinate data calculated with the central point of a crank member of a work holder with the crank member as the origin and enlarge or reduce the coordinate data of the flexing points other than the starting point and the ending point of sewing in a desired scale, when the original sewing pattern is for a work holder with a crank member.

    摘要翻译: 公开了一种用于缝纫机的输入装置,其从存储器电路读取已经存储的原始缝纫图案,以期望的比例放大或缩小原始缝合图案的坐标数据,并且准备缝合点的坐标数据 通过根据期望的针迹长度数据或针数数据放大或缩小而获得的弯曲点。 输入装置适于将原始缝制图案的坐标数据转换为以曲柄构件为原点的工件保持器的曲柄构件的中心点计算的坐标数据,并且放大或缩小弯曲点的坐标数据 当原始缝制图案用于具有曲柄构件的工件保持器时,除了所需尺寸的缝制的起点和终点。

    Sewing machine for producing a stitch pattern
    42.
    发明授权
    Sewing machine for producing a stitch pattern 失效
    缝纫机生产针迹图案

    公开(公告)号:US4638752A

    公开(公告)日:1987-01-27

    申请号:US782721

    申请日:1985-10-01

    申请人: Jurgen Hartwig

    发明人: Jurgen Hartwig

    摘要: A sewing machine has an electronic control for the production of at least one stitch pattern consisting of a plurality of different single stitches, with a read-and-write memory RAM for storing in memory at least the single stitches of the stitch pattern and with a feed mechanism whose feed adjustment occurs by a step motor controlled in accordance with the stored data of the read-and-write memory within the inactive phase of the feed mechanism. To carry out a feed variation exceeding the maximum number of steps of the step motor between two predetermined sewing stitches, the control unit contains a comparator which compares the magnitude of the displacement amount of the step motor before the next displacing movement is carried out with a given maximum displacement amount, in order to prevent a stitch formation between the point of insertion of the previous stitch and the desired point of insertion of the next following stitch when the maximum displacement amount is exceded.

    摘要翻译: 一种缝纫机具有电子控制,用于生产至少一个由多个不同单个针迹组成的针迹图案,具有读写存储器RAM,用于存储至少缝合图案的单个针迹的存储器和一个 进给机构,其进给调整是通过根据在进给机构的非活动阶段中的读写存储器的存储数据控制的步进电机进行的。 为了执行超过两个预定缝纫针迹之间的步进电机的最大步数的馈送变化,控制单元包含比较器,该比较器将进行下一个移位运动之前的步进电动机的位移量的大小与 给定最大位移量,以便当最大位移量被消除时,防止在先前线圈的插入点和下一个后续针脚的期望插入点之间的缝合形成。

    Stepping motor control system
    45.
    发明授权
    Stepping motor control system 失效
    步进电机控制系统

    公开(公告)号:US4426608A

    公开(公告)日:1984-01-17

    申请号:US253035

    申请日:1981-04-10

    IPC分类号: G05B19/23 H02P8/14 G05B19/40

    摘要: A stepping motor control system which uses a closed-loop lead angle control technique wherein a programmably selected lead angle signal is combined with a signal representing the position of a step motor shaft so as to provide a coil state excitation signal for the coils of the stepping motor, the shaft thereof being rotated in response to the coil state excitation signal. The lead angle signal can be modulated in accordance with a selected duty cycle so as to assume two adjacent lead angle values during each modulation cycle. The system can also be arranged to permit the use of open-loop control using a suitably programmed externally supplied coil state excitation signal, the latter being capable of similar modulation as described above with reference to lead angle modulation.

    摘要翻译: 一种使用闭环引导角控制技术的步进电机控制系统,其中可编程选择的引导角信号与表示步进电机轴的位置的信号组合,以便为步进电机的线圈提供线圈状态激励信号 马达,其轴响应于线圈状态激励信号而旋转。 可以根据所选择的占空比调制引导角信号,以便在每个调制周期期间呈现两个相邻引导角值。 该系统还可以被布置成允许使用适当编程的外部提供的线圈状态激励信号来使用开环控制,后者能够像上述参考前导角调制一样进行类似的调制。

    Sewing machine for fancy seams
    46.
    发明授权
    Sewing machine for fancy seams 失效
    缝纫机缝合接缝

    公开(公告)号:US4399760A

    公开(公告)日:1983-08-23

    申请号:US314362

    申请日:1981-10-23

    申请人: Bengt A. Bergvall

    发明人: Bengt A. Bergvall

    摘要: A programmable sewing machine has a stitch memory connected to control the needle and/or the cloth feeder. The stitch memory is addressed by an address counter, which is stepped in response to operation of the machine. The address counter is reversible, and the direction of counting therein and the preseting of an address therein is derived from a seam instruction memory responsive to a pattern selection device.

    摘要翻译: 可编程缝纫机具有缝合记录器,用于控制针和/或送布器。 针脚存储器由地址计数器寻址,地址计数器响应于机器的操作而步进。 地址计数器是可逆的,并且其中的计数方向和其中的地址的预置是从响应于模式选择装置的接缝指令存储器导出的。

    Stitch pattern sewing machine
    47.
    发明授权
    Stitch pattern sewing machine 失效
    针织花纹缝纫机

    公开(公告)号:US4388884A

    公开(公告)日:1983-06-21

    申请号:US237424

    申请日:1981-02-24

    摘要: An automatic sewing machine for forming a desired pattern on a workpiece by means of varying the position of a workholder for holding the workpiece in relation to a needle which is vertically reciprocated due to pattern data stored in advance in memory means. A sewing machine of this type is provided with a manual input device for setting up a numerical limit indicating an allowably movable sphere of the workholder without impacting or interfering with the needle and a controller for calculating a numerical result indicating the movement amount of the workholder in relation to the needle during the pattern forming operation based on the pattern data prior to the pattern forming operation. The controller makes a comparison of the calculated numerical result with the numerical limit set by the manual input means, and generates a signal for warning the operator of the exceeding, if so being the case, of the calculated numerical result over the above-mentioned set numerical limit.

    摘要翻译: 一种自动缝纫机,用于通过改变用于保持工件的工件的位置相对于由于预先存储在存储装置中的图案数据而垂直往复运动的针而在工件上形成所需图案。 这种缝纫机设置有手动输入装置,用于设置指示工件的允许移动的球体的数值极限,而不会影响或干扰针头;以及控制器,用于计算表示工件的移动量的数值结果 在图案形成操作期间基于图案形成操作之前的图案数据与针的关系。 控制器将计算出的数值结果与由手动输入装置设定的数值限制进行比较,并产生一个信号,用于警告操作员超过上述设定值的计算数值结果(如果是这样) 数字限制。

    Stitch pattern sewing machine
    48.
    发明授权
    Stitch pattern sewing machine 失效
    针织花纹缝纫机

    公开(公告)号:US4388883A

    公开(公告)日:1983-06-21

    申请号:US237423

    申请日:1981-02-24

    IPC分类号: D05B19/10 D05B21/00

    摘要: An automatic embroidery or stitch pattern sewing machine provided with a memory for storing plural blocks of cell pattern information respectively including zone data related to figure and location of a triangular or quadrangular zone on which a cell stitch pattern is to be formed, and a manual input device for setting up desired number of stitches to be formed in the zone. Based on the position data stored in the memory and the stitch number data set by the manual input device, a microprocessor connected thereto calculates the position data of the actual stitch forming positions; and a drive mechanism relatively moves the needle and the workpiece according to the position data calculated. Many cell stitch patterns thus formed on the workpiece turns out to be a desired unit stitch pattern such as a letter, symbol and other patterns.

    摘要翻译: 一种自动绣花缝纫机,设置有存储多个单元图案信息的存储器,该单元图形信息分别包括与要形成单元格针迹图案的三角形或四边形区域的图形和位置有关的区域数据,以及手动输入 用于设置要在区域中形成的所需针数的装置。 基于存储在存储器中的位置数据和由手动输入装置设置的针数数据,与其连接的微处理器计算出实际缝合形成位置的位置数据; 并且驱动机构根据计算的位置数据相对地移动针和工件。 因此,在工件上形成的许多细胞针迹图案成为所需的单位针迹图案,例如字母,符号等图案。

    Electrohydraulic needle bar positioning apparatus for tufting machines
    50.
    发明授权
    Electrohydraulic needle bar positioning apparatus for tufting machines 失效
    电动针杆定位装置

    公开(公告)号:US4173192A

    公开(公告)日:1979-11-06

    申请号:US845826

    申请日:1977-10-26

    IPC分类号: D05C15/30 G05B19/35

    摘要: A hydraulic actuator for transversely shifting the relative positions of a needle bar and the backing material in a tufting machine. An electronic pattern control mechanism drives the hydraulic actuator in response to the predetermined stitch pattern information in the electronic control circuit, which determines the amount of relative transverse shifting of the needle bar for each stitch location. A feedback mechanism associated with the hydraulic actuator creates a feedback signal which is compared with a pattern stitch command signal in order to produce an output signal for shifting the hydraulic actuator to a subsequent transverse needle bar position relative to the preceding needle bar position.

    摘要翻译: 一种液压致动器,用于横向移动针布和背衬材料在簇绒机中的相对位置。 电子图形控制机构响应于电子控制电路中的预定的针迹图案信息驱动液压致动器,其确定针脚针对每个针脚位置的针杆的相对横向移动量。 与液压致动器相关联的反馈机构产生反馈信号,其与图案缝合指令信号进行比较,以便产生用于将液压致动器相对于先前的针杆位置移动到随后的横向针杆位置的输出信号。