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    • 8. 发明授权
    • Spindle tension system for sewing station
    • 缝纫机主轴张力系统
    • US5979345A
    • 1999-11-09
    • US914074
    • 1997-08-18
    • Elvin C. PricePreston B. DasherJohn S. ChamleeTadeusz Olewicz
    • Elvin C. PricePreston B. DasherJohn S. ChamleeTadeusz Olewicz
    • D05B33/00D05B35/04D05B35/10D05B41/00
    • D05B33/00D05B35/102D05B41/00D05D2205/32D05D2305/345
    • A sewing system (10) includes a tension adjustment spindle assembly (30) constructed and arranged to move a spindle (26) laterally toward and away from a sewing head (16) of the sewing machine to adjust the tension in the looped end of a work piece (28). A tension roller (70) engages a bottom run (29) of the work piece (28), so that when proper tension is applied to the work piece at the beginning of the cycle of operation by the lateral shifting of the tension adjustment spindle assembly (30), a proximity switch (88) detects the upward movement of a tension arm (72) and initiates the operation of the sewing system. As the sewing system operates and the work piece tends to become longer because of the penetration of the needles and the insertion of stitches between the yarns of the work piece, and temporary stretching associated with the handling of the work piece, the tension roller (70) moves downwardly into the lower run of the work piece to constantly apply a predetermined downward tension force against the bottom run of the work piece to maintain a constant tension force on the work piece.
    • 缝纫系统(10)包括张力调节主轴组件(30),其被构造和布置成使主轴(26)横向和远离缝纫机的缝纫头(16)横向移动,以调节缝纫机的环形端部中的张力 工件(28)。 张紧辊(70)接合工件(28)的底部行程(29),使得当通过张力调节主轴组件的横向移动在操作循环开始时对工件施加适当的张力时 (30),接近开关(88)检测张力臂(72)的向上运动并启动缝纫系统的操作。 由于缝纫系统的操作和工件趋向于变长,因为针的穿透以及在工件的纱线之间插入线圈以及与工件的处理相关的临时拉伸,张紧辊(70 )向下移动到工件的下游,以对工件的底部行程持续施加预定的向下的张力,以在工件上保持恒定的张力。
    • 10. 发明授权
    • Method and apparatus for producing a hemmed, folded, and seamed finished
workpiece
    • 用于生产卷边,折叠和接缝的成品工件的方法和设备
    • US5915319A
    • 1999-06-29
    • US45759
    • 1998-03-20
    • Elvin C. PricePreston B. DasherTadeusz OlewiczGeorge Price
    • Elvin C. PricePreston B. DasherTadeusz OlewiczGeorge Price
    • A41H43/02D05B35/04D05B21/00
    • A41H43/0257D05B35/04D05D2207/04D05D2305/02
    • A hemming and seaming machine (5) having a hemming conveyor (16) on which a workpiece is moved along a path of travel toward and through a hemming station which sews a hem in the workpiece is disclosed. The hemmed workpiece is then moved downstream to a folding station (25) where a spaced series of first air jets (61) selectively emit streams of air between a folding plate (26) and clamping plate (55) to create a vacuum therebetween to draw the leading edge of the workpiece off of the hemming conveyor and between the folding plate and the clamping plate. The leading edge of the workpiece is held between the clamping and folding plates while the workpiece continues to move along the path of travel. After a predetermined period of time has elapsed from the detection of the leading edge of the workpiece, or in response to the detection of the trailing edge of the workpiece, the leading edge of the workpiece is released from between the folding and clamping plates. The workpiece is then moved to a downstream seamer station (175), which sews a seam in the workpiece, and then to a downstream workpiece stacking station (177).
    • 公开了一种折边和缝合机(5),该折边机(5)具有折边输送机(16),工件沿其行进路线移动并穿过折边工位,该折边工位在工件上缝制边缘。 然后将被卷绕的工件下游移动到折叠站(25),其中间隔开的一系列第一空气射流(61)选择性地在折叠板(26)和夹板(55)之间产生空气流,以在其间产生真空,以绘制 折边板和夹板之间离开折边输送机的工件的前缘。 当工件沿行进路径继续移动时,工件的前缘保持在夹紧板和折叠板之间。 在从检测到工件前缘经过预定时间之后,或者响应于检测到工件的后缘,工件的前缘从折叠板和夹紧板之间释放出来。 然后将工件移动到下游封隔器工位(175),缝合器工件(175)缝合工件中的接缝,然后缝合到下游工件堆垛台(177)。