公开(公告)号：US4036156A

公开(公告)日：1977-07-19

申请号：US636995

申请日：1975-12-02

申请人： Dietmar Becker ,  Fritz Jehle ,  Rubi Schonthaler ,  Erich Willenbacher

发明人： Dietmar Becker ,  Fritz Jehle ,  Rubi Schonthaler ,  Erich Willenbacher

IPC分类号： D05B35/10 ,  D05B21/00

CPC分类号： D05B35/105

摘要： The device is for use in a sewing unit including a sewing machine and includes a vertically oriented relatively elongated intermediate plate separating two plies of material in advance of the sewing machine. Guide elements adjacent the intermediate plate support a clasping station for movement longitudinally of the intermediate plate. The clasping station includes a support mounting two clasps each selectively engageable with a respective ply of material. Photoelectric sensing devices are movable with the clasping station, and include respective sensing devices operatively associated with each ply of material and each operable to control engagement of a respective clasp with the associated ply of material responsive to sensing of the trailing edge of the associated ply of material. A counterweight arrangement exerts an adjustable pull on the clasping station in a direction opposite to the feed direction of the plies of material. In one embodiment, a lifting carriage supports the sensing devices and effects lifting of the clasping station. In a second embodiment, the sensing devices are mounted on the same support which mounts the clasps.

摘要翻译： 该装置用于包括缝纫机的缝纫单元，并且包括在缝纫机之前分离两层材料的垂直取向的相对细长的中间板。 与中间板相邻的引导元件支撑用于中间板纵向移动的夹紧台。 夹持站包括安装两个可以与相应的材料层接合的两个扣的支撑件。 光电感测装置可以通过夹持台移动，并且包括与每个材料层可操作地相关联的各自的感测装置，并且每个可操作地控制相应的扣环与相关的材料层的接合，以响应于感测相关联的层的后缘 材料。 配重装置在夹紧工位上沿与材料层的进给方向相反的方向施加可调节的拉力。 在一个实施例中，提升托架支撑感测装置并且提升夹紧台的提升。 在第二实施例中，感测装置安装在安装扣件的相同支撑件上。

公开(公告)号：US5103749A

公开(公告)日：1992-04-14

申请号：US623944

申请日：1991-02-13

申请人： Heribert Geisselmann ,  Manfred Frank ,  Fritz Jehle ,  Erich Willenbacher

发明人： Heribert Geisselmann ,  Manfred Frank ,  Fritz Jehle ,  Erich Willenbacher

IPC分类号： D05B19/00 ,  D05B21/00 ,  D05B35/10 ,  D05B69/00

CPC分类号： D05B35/102 ,  D05D2207/06 ,  D05D2209/02

摘要： Patterns of two fabric layers are each recognized by a camera and the fabric layers are aligned to make these patterns agree in the transverse and longitudinal directions. According to the invention the influence of speed-related disturbance variables and pattern-related limitations during the generation of the signal is reduced. Two-dimensional images of the two fabric layers are recorded with a matrix camera each during a pause between feeds. The degree of congurence of the fabric layers according to the pattern is determined by two-dimensional cross-correlation analysis of the image points arranged in rows and columns. Aligning correction values are calculated from this degree. The edge distance of the fabric layers is determined with a section of the matrix sensors, which is a separate section in terms of evaluation. Based on the edge distance data, the lower fabric layer is adjusted to the correct distance continuously and the upper fabric layer is adjusted as needed. If slight inaccuracies are accepted and the computation operations are limited only to the areas that are of interest, the overall computation time can be considerably reduced.

摘要翻译： PCT No.PCT / EP89 / 00589 371日期：1989年7月17日 102（e）日期1989年7月17日PCT提交1989年5月26日PCT公布。 WO89 / 12126 PCT公开号 日期为1989年12月14日。两个织物层的图案各自被相机识别，织物层被对准以使这些图案在横向和纵向上一致。 根据本发明，降低了在产生信号期间速度相关干扰变量和模式相关限制的影响。 在馈送之间的暂停期间，用矩阵相机记录两个织物层的二维图像。 根据图案的织物层的配位度通过以行和列排列的图像点的二维互相关分析来确定。 对齐校正值根据此程度计算。 织物层的边缘距离由矩阵传感器的一部分确定，矩阵传感器在评估方面是单独的部分。 基于边缘距离数据，将下层织物层连续调节到正确的距离，并根据需要调整上层织物层。 如果接受轻微的不准确，并且计算操作仅限于感兴趣的区域，则总体计算时间可以大大减少。

公开(公告)号：US4658741A

公开(公告)日：1987-04-21

申请号：US884402

申请日：1986-07-11

申请人： Fritz Jehle ,  Erich Willenbacher ,  Oskar Braun ,  Dietmar Becker

发明人： Fritz Jehle ,  Erich Willenbacher ,  Oskar Braun ,  Dietmar Becker

IPC分类号： D05B27/22 ,  D05B21/00 ,  D05B27/00 ,  D05B35/10 ,  D05B69/00 ,  D06H1/02 ,  D05B97/00 ,  D05B35/00

CPC分类号： D06H1/02 ,  D05B35/102 ,  D05D2305/24

摘要： Method and apparatus for determining and regulating the amount of advance of a plurality of workpiece plies at a sewing machine which is affected by scanning the individual plies while recording the stitches being formed between two separate feed points and actuating top and bottom feed devices to achieve a desirable feed of each ply. Signs present or to be applied at any desired point of the workpiece plies are scanned at two successive points, and pulses generated by a pulse generator connected with the main shaft of the machine are summed during this period of time. The pulse sum is compared with a number of pulses which depends on the mutual spacing of the scanning points and on the adjusted stitch length. For two work plies the pulse sums formed between the recognition of the signs are compared directly. As signs to be scanned are used either imprinted marks, the jags of a pinked workpiece edge, or the bright, dark structure of a surface section of the workpiece.

摘要翻译： 用于确定和调节在缝纫机处的多个工件层的前进量的方法和装置，该缝纫机在记录在两个单独的进料点之间形成的线圈并且致动顶部和底部进料装置以实现 每层的理想进料。 在两个连续的点处扫描存在或施加在工件层的任何所需点处的迹象，并且在该时间段期间将与由机器的主轴连接的脉冲发生器产生的脉冲相加。 将脉冲和与取决于扫描点的相互间隔和调整的针迹长度的脉冲数进行比较。 对于两个工作层，直接识别符号之间形成的脉冲和。 随着要扫描的符号使用印痕标记，粉红色工件边缘的翘起，或工件表面部分的明亮，黑暗的结构。

公开(公告)号：US4589363A

公开(公告)日：1986-05-20

申请号：US779491

申请日：1985-09-24

申请人： Erich Willenbacher ,  Fritz Jehle

发明人： Erich Willenbacher ,  Fritz Jehle

IPC分类号： D05B35/00 ,  D05B35/10 ,  D05B27/08

CPC分类号： D05B35/102 ,  D05D2207/02

摘要： A sewing machine for automatically making edge-parallel seams comprises a scanning device for recognizing the geometric form of the workpiece edge and a pressure piston lowerable laterally of the stitch formation point. For straight workpiece edges extending at an angle to each other, the pressure piston, having been lowered onto the workpiece with the sewing machine stopped, is rotated around the needle which is inserted in the workpiece, the workpiece being taken along accordingly. For a convexly arcuate edge pattern, first the lateral distance of the pressure piston from the needle is readjusted in such a way that it corresponds to the radius of the edge arc (e.g. scallop). Thereafter, with the sewing machine continuing to run, the pressure piston is lowered, whereupon the feed dog of the sewing machine rotates the workpiece around the pressure piston.

摘要翻译： 用于自动制作边缘平行接缝的缝纫机包括用于识别工件边缘的几何形状的扫描装置和可在缝合形成点的侧面可压缩的压力活塞。 对于彼此成角度延伸的直工件边缘，当缝纫机停止时已经下降到工件上的压力活塞围绕被插入到工件中的针旋转，工件被相应地沿着。 对于凸形弓形边缘图案，首先将压力活塞从针的横向距离重新调整为使其对应于边缘弧（例如扇形）的半径。 此后，随着缝纫机继续运转，压力活塞降低，缝纫机的进给齿围绕压力活塞旋转工件。

公开(公告)号：US4423690A

公开(公告)日：1984-01-03

申请号：US328504

申请日：1981-12-08

申请人： Erich Willenbacher ,  Fritz Jehle

发明人： Erich Willenbacher ,  Fritz Jehle

IPC分类号： D05B35/10 ,  D05B97/00

CPC分类号： D05B35/102 ,  D05D2207/02

摘要： A sewing machine with guide mechanism for automatically producing a curved edge parallel seam comprises a scanning unit for scanning the edge of a workpiece and sensing when the edge of the workpiece moves away from an edge guide which indicates the presence of a curved edge, a workpiece feeder for feeding the workpiece along the guide edge, a workpiece pressure stamp for applying pressure on the workpiece at a point spaced from the guide to cause rotation of the workpiece about the point when the pressure stamp is activated and a circuit connected between the scanning unit and the pressure stamp for intermittently activating the pressure stamp when the scanner senses the presence of a curved edge area of the workpiece.

摘要翻译： 具有用于自动生产弯曲边缘平行接缝的引导机构的缝纫机包括用于扫描工件边缘的扫描单元，并且当工件的边缘远离指示弯曲边缘的存在的边缘引导件移动时，检测工件 进料器，用于沿着引导边缘进给工件;工件压力标记，用于在与引导件间隔开的点处对工件施加压力，以使得当压力传感器被激活时工件围绕点旋转;以及连接在扫描单元 以及当扫描器感测到工件的弯曲边缘区域的存在时间歇地启动压力印章的压力标记。

公开(公告)号：US4296700A

公开(公告)日：1981-10-27

申请号：US144039

申请日：1980-04-28

申请人： Fritz Jehle ,  Erich Willenbacher

发明人： Fritz Jehle ,  Erich Willenbacher

IPC分类号： D05B27/00 ,  D05B35/10

CPC分类号： D05B35/102 ,  D05D2207/02

摘要： A device for the automatic guiding of a workpiece on a sewing machine to produce a curved edge parallel seam operates in conjunction with a sewing machine having a reciprocating needle and a presser foot engageable with the workpiece and a feed member engageable with the workpiece to move it relative to the needle. The sewing machine also includes a guide roll disposed in spaced relationship to the needle for guiding the edge of the workpiece and a scanner for scanning the workpiece edge for sensing its position. In accordance with the position sensed, a plunger is mounted above the workpiece and is movable into the engagement with the workpiece to hold the workpiece at a selected point so as to turn the workpiece during the feeding movement of the workpiece by this feed member. A fluid pressure operated drive is connected to the plunger so as to engage it with the workpiece and the operation thereof is dependent upon a second fluid pressure drive which varies the operation of a stitch length setting mechanism which includes a stitch length setting bar which is movable to change the length of the feeding movement of the feed member.

摘要翻译： 一种用于在缝纫机上自动引导工件以产生弯曲边缘平行缝合的装置与具有可与工件接合的往复式针和压脚的缝纫机一起工作，以及可与工件接合的进给构件以将其移动 相对于针。 该缝纫机还包括一个引导辊，该引导辊以与针头间隔的方式设置，用于引导工件的边缘，扫描器用于扫描工件边缘以感测其位置。 根据感测到的位置，柱塞被安装在工件上方并且可移动到与工件接合以将工件保持在选定的位置，以便在通过该进给构件进给工件的进给期间转动工件。 流体压力驱动的驱动器连接到柱塞以便与工件接合，并且其操作取决于第二流体压力驱动，其改变线圈长度设定机构的操作，该线圈长度设定机构包括可移动的针脚长度设定杆 以改变进给构件的进给运动的长度。

公开(公告)号：US5375546A

公开(公告)日：1994-12-27

申请号：US50272

申请日：1993-04-30

申请人： Edgar Butzen ,  Gunther Denuell ,  Karl-Heinz Walther ,  Fritz Jehle

发明人： Edgar Butzen ,  Gunther Denuell ,  Karl-Heinz Walther ,  Fritz Jehle

IPC分类号： D05B57/00 ,  D05B65/00 ,  D05B65/02

CPC分类号： D05B65/00 ,  D05B57/00 ,  D05D2207/04

摘要： In a process and a device for shortening the needle thread end at the beginning of sewing and at the end of sewing in two-thread lockstitch sewing machines, the catch thread device (23) of an already existing thread-cutting device (22; 60; 90) is moved into its thread-catching position during the first stitch formation cycle, and it is ensured, either by the selection of a suitable point in time for moving the catch thread device (23) or by a compressed air flow discharged from a compressed air line (81), that at least the reserve-side leg of the needle thread loop will be caught by the catch thread device (23). Part of the needle thread end is cut off during the return movement of the catch thread device (23) into its starting position. Furthermore, the needle thread is clamped either under a leaf spring (44), or is pushed by a sufficiently large feed step under the pressure foot, and is thus held in a frictionally engaged manner.

摘要翻译： PCT No.PCT / EP91 / 02200 Sec。 371日期：1993年04月30日 102（e）日期1993年4月30日PCT 1991年11月21日PCT PCT。 出版物WO92 / 09735 日期：1992年6月11日。在缝合开始时缩短针线端的装置和在双线平缝机中缝制结束的装置中，已有螺纹的止动螺纹装置（23） 切割装置（22; 60; 90）在第一针迹形成循环期间移动到其捕捉位置，并且通过选择合适的时间点来移动捕获螺纹装置（23）或 通过从压缩空气管线（81）排出的压缩空气流，所述至少所述针线圈的所述储备侧支腿将被所述止动螺纹装置（23）卡住。 在止动螺纹装置（23）返回到其起始位置的过程中，针螺纹端部的一部分被切断。 此外，将针线夹在板簧（44）下方，或者在压脚下方被推入足够大的进给台阶，从而保持摩擦接合。