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1. 发明申请

WO1990005804A1 SEWING MACHINE WITH TRANSDUCER AND CONTROL DEVICE 审中-公开
标题翻译：带传感器和控制装置的缝纫机
公开(公告)号：WO1990005804A1
公开(公告)日：1990-05-31
申请号：PCT/EP1989001383
申请日：1989-11-17
申请人： PFAFF INDUSTRIEMASCHINEN GMBH , WILLENBACHER, Erich , MERTEL, Bernhard , SPICKERMANN, Rainer , SINN, Walter
发明人： PFAFF INDUSTRIEMASCHINEN GMBH
IPC分类号： D05B47/00
CPC分类号： D05B51/00 , D05B47/00 , D05B47/06 , D05D2205/16
摘要： A known sewing machine has a transducer and an electronic evaluation system. The latter checks the threat tension determined by the transducer by comparing it with a threshold value dependent on the preceding stitch. The evaluation of the stitch tension can therefore only take place after the formation of a stitch by a normal variation in the tension after the sewing machine is brought to a halt. When the threshold value is exceeded, a stitch defect is displayed. The invention, on the other hand, proposes a control device for a sewing machine which makes it possbile to display a plurality of different stitch defects as well as problems associated with the needle thread and gripper thread, starting with the first stitch formed by the machine with normal variation of tension. The control device (40) of the sewing machine has a comparator (13; 58) which compares tension peaks (U1, U2,2) of the thread tension (UF) with a predetermined limiting tension (UG1, UG2; UG), and by means of which a switching device (32; 62) arranged downstream and connected to a cut-off device (38) of the drive motor (39) of the machine, as well as a plurality of display elements (33, 35), can be activated, when a tension peak (U1, U2,2) falls below the corresponding limiting tension (UG1, UG2; UG), in function of the limiting tension (UG1, UG2) or of the phase of stitch formation. The switching device (32; 62) thus brings the machine to a halt and switches on the display element (33, 35) corresponding to the defect function.
摘要翻译：已知的缝纫机具有换能器和电子评估系统。后者通过将传感器与取决于之前的针脚的阈值进行比较来检查由换能器确定的威胁张力。因此，缝纫张力的评价只能在缝纫机停止后通过正常的张力变化形成线圈之后进行。当超过阈值时，显示针迹缺陷。另一方面，本发明提出了一种用于缝纫机的控制装置，其使得可能显示多个不同针迹缺陷以及与针线和夹纱线相关的问题，从由机器形成的第一线圈开始具有正常的张力变化。缝纫机的控制装置（40）具有比较器（13; 58），其将线张力（UF）的张力峰值（U1，U2,2）与预定的限制张力（UG1，UG2; UG）进行比较，以及通过该开关装置（32; 62）布置在下游并连接到机器的驱动马达（39）的切断装置（38），以及多个显示元件（33,35），可以在张力峰值（U1，U2,2）下降到相应的极限张力（UG1，UG2; UG）以下，起限制张力（UG1，UG2）或缝合相位的作用。因此，开关装置（32; 62）使机器停止并且对应于缺陷功能开启显示元件（33,35）。

2. 发明申请

WO1989009299A1 FEED DEVICE FOR FLEXIBLE WORKPIECES 审中-公开
标题翻译：用于柔性工件的进给装置
公开(公告)号：WO1989009299A1
公开(公告)日：1989-10-05
申请号：PCT/EP1989000292
申请日：1989-03-18
申请人： PFAFF INDUSTRIEMASCHINEN GMBH , ARBTER, Conrad
发明人： PFAFF INDUSTRIEMASCHINEN GMBH
IPC分类号： D05B33/00
CPC分类号： D05B33/00 , B65G15/14 , B65G2201/02 , D05D2207/02
摘要： The feed device for a belt conveyor ensures, in a technically simple manner, uniform frictional engagement between belt conveyor and workpiece along the feed device. The feed device comprises a retaining strip (10) open at the bottom, one or more pressure hoses (14) with air supply and exhaust, and a strip-shaped pressure-transmitting member (13) in contact with the belt conveyor (6). When the air is evacuated from the pressure hose (14), the contact pressure on the belt conveyor (6), and hence the conveying action of the latter, is discontinued. The feed device is particularly suited for conveying workpieces to sewing aggregates and folding and packaging machines.

3. 发明申请

WO1989001068A1 TOP TRANSPORT DEVICE FOR SEWING MACHINES 审中-公开
标题翻译：用于缝纫机的顶部运输装置
公开(公告)号：WO1989001068A1
公开(公告)日：1989-02-09
申请号：PCT/EP1988000415
申请日：1988-05-13
申请人： PFAFF INDUSTRIEMASCHINEN GMBH , KLUNDT, Kurt
发明人： PFAFF INDUSTRIEMASCHINEN GMBH
IPC分类号： D05B27/04
CPC分类号： D05B27/04
摘要： In known top transport devices, a transmission rod for raising the top transport foot is mounted directly on the support element of the support system. This results in a uniform upward movement of the top transport foot. In the new arrangement, the execution of this movement is improved. To reduce the components of motion of the top transport foot in its contact phase, the guide rod drive consists of a pair of guide rods (16, 28) interconnected by a hinge (17) rotatably connected to a rocker (18) mounted on the support element (20) of the support system. The rocker (18) is mounted in such a way that in the contact region of the top transport foot (6) the rocker (18) runs essentially parallel to the guide rod (28) located between the rocker (18) and the top transport foot (6).
摘要翻译：在已知的顶部运输装置中，用于升高顶部输送脚的传动杆直接安装在支撑系统的支撑元件上。这导致顶部运输脚的均匀向上运动。在新的安排中，这项运动的执行得到改善。为了减小顶部输送脚在其接触相位中的运动分量，导杆驱动器由一对导向杆（16,28）组成，该导向杆通过可旋转地连接到安装在其上的摇臂（18）的铰链（17）互连。支撑元件（20）。摇杆（18）以这样的方式安装，使得在顶部输送脚（6）的接触区域中，摇臂（18）基本上平行于位于摇杆（18）和顶部输送器（18）之间的导杆（28）脚（6）。

4. 发明申请

WO1989012127A1 SEWING MACHINE WITH A LOWER FEED DOG 审中-公开
标题翻译：具有下饲料的缝纫机
公开(公告)号：WO1989012127A1
公开(公告)日：1989-12-14
申请号：PCT/EP1989000453
申请日：1989-04-26
申请人： PFAFF INDUSTRIEMASCHINEN GMBH , DUSCH, Albert , WALTHER, Karl-Heinz
发明人： PFAFF INDUSTRIEMASCHINEN GMBH
IPC分类号： D05B27/02
CPC分类号： D05B27/02
摘要： A sewing machine is designed so that the feed dog executes, as desired, either rectangular movements or horizontal sliding movements only. The sewing machine has a lower feed dog to which adjustable horizontal sliding movements are imparted by a drive cam via a stitching actuator and vertical lifting movements are imparted by a drive cam via a pivoting lifting shaft with a lifting cam. A releasable coupling (34-39) is arranged between the lifting shaft (29) and its drive cam (25). The sewing machine can be used both for normal sewing operations, in which the lower feed dog executes a rectangular movement, and for hemming operations in which it may execute horizontal sliding movements only.

5. 发明申请

WO1989012126A1 PROCESS AND SEWING MACHINE FOR STITCHING LAYERS OF FABRIC TOGETHER TO ENSURE PATTERN MATCHING 审中-公开
标题翻译：用于缝制织物层的过程和缝纫机以确保图案匹配
公开(公告)号：WO1989012126A1
公开(公告)日：1989-12-14
申请号：PCT/EP1989000589
申请日：1989-05-26
申请人： PFAFF INDUSTRIEMASCHINEN GMBH , GEISSELMANN, Heribert , FRANK, Manfred , JEHLE, Fritz , WILLENBACHER, Erich
发明人： PFAFF INDUSTRIEMASCHINEN GMBH
IPC分类号： D05B35/10
CPC分类号： D05B35/102 , D05D2207/06 , D05D2209/02
摘要： Any type of pattern on each of two layers of fabric is recognized by a camera and the layers of fabric are orientated so that the patterns overlap in the transverse and longitudinal directions. The effects of speed-related fluctuations and pattern-related restrictions are reduced during signal generation. Two-dimensional images of both layers of fabric (7, 8) are produced by matrix cameras (39, 45) during a transport pause. The degree of pattern overlap of the layers of fabric is determined by two-dimensional cross-section analysis of the image points arranged in lines and columns, from which orientation correction values are derived. The distance between the edges of the layers of fabric is measured using a separate section of the matrix sensor determined according to the evaluation. The edge distance data are used to adjust the lower layer of fabric (8) continuously and the upper layer of fabric (7) as necessary, in function of the distance. By accepting slight inaccuracies and by restricting the calculation operations solely to the regions of interest, the total calculating time can be substantially reduced.
摘要翻译：通过照相机识别两层织物中的每一层上的任何类型的图案，并且织物层被定向以使得图案在横向和纵向方向上重叠。在信号发生过程中，速度相关波动和模式相关限制的影响降低。两层织物（7,8）的二维图像在传输暂停期间由矩阵相机（39,45）产生。通过对以行和列排列的图像点的二维横截面分析来确定织物层的图案重叠程度，从中导出取向校正值。使用根据评估确定的矩阵传感器的单独部分来测量织物层的边缘之间的距离。边缘距离数据用于根据需要连续调整织物（8）的下层和织物（7）的上层。通过接受轻微的不准确之处，并将计算操作仅限于感兴趣的区域，可以大大减少总计算时间。

6. 发明申请

WO1989010994A1 SEWING MACHINE WITH LAMP 审中-公开
标题翻译：带灯的缝纫机
公开(公告)号：WO1989010994A1
公开(公告)日：1989-11-16
申请号：PCT/EP1989000346
申请日：1989-03-31
申请人： PFAFF INDUSTRIEMASCHINEN GMBH , DUSCH, Albert
发明人： PFAFF INDUSTRIEMASCHINEN GMBH
IPC分类号： D05B79/00
CPC分类号： D05B79/00 , G02B6/0008
摘要： A lamp comprises a light source and a light guide (17), which is guided over part of its length in the housing (1) of a sewing machine and projects at one end (18) outside the housing (1). The lamp is arranged in the sewing machine so that it can illuminate any part of the machine as desired, without detriment to the operator's working region or visual field. For this purpose, the end (18) of the light guide (17) is shaped to match a housing part (7) which accommodates and conceals it on the side facing away from the housing.
摘要翻译：灯包括光源和在缝纫机的壳体（1）中引导其长度的一部分的导光体，并且在壳体（1）外部的一端（18）突出。该灯布置在缝纫机中，使得其可以根据需要照亮机器的任何部分，而不会损害操作者的工作区域或视野。为此目的，导光体17的端部18成形为与壳体部分（7）成形，该壳体部分（7）在远离壳体的一侧容纳并隐藏它。

7. 发明申请

WO1989010992A1 PROCESS FOR EXECUTING A STITCHING OPERATION WITH A SEWING MACHINE PROVIDED WITH NEEDLE FEED 审中-公开
标题翻译：用具有针脚的缝纫机执行缝合操作的过程
公开(公告)号：WO1989010992A1
公开(公告)日：1989-11-16
申请号：PCT/EP1989000352
申请日：1989-04-01
申请人： PFAFF INDUSTRIEMASCHINEN GMBH , ULMEN, Mathias , BALZER, Dieter , BUNGERT, Heinrich
发明人： PFAFF INDUSTRIEMASCHINEN GMBH
IPC分类号： D05B27/10
CPC分类号： D05B27/10 , D05B19/16 , D05D2207/06
摘要： Defective stitches frequently occur at the beginning of a stitching operation with a sewing machine provided with needle feed, because the starting threads are not tightly gripped in the needle plate as a result of the elongated stitching slot. In the new process, the needle (13) is positioned prior to the beginning of stitching in an end region (S1) of the stitching slot (50b) in order to execute a predetermined number of starting stitches.
摘要翻译：因缝纫机缝纫操作开始时，缝纫机经常出现针脚缺口，因为缝纫机由于加长了缝合槽而没有紧紧地夹在针板上。在新工艺中，针（13）在缝合开始之前定位在缝合槽（50b）的端部区域（S1）中，以便执行预定数量的起始针迹。

8. 发明申请

WO1989010443A1 DEVICE FOR CLAMPING REGIONS OF A LIMP FLAT MATERIAL 审中-公开
标题翻译：夹紧平板材料区域的装置
公开(公告)号：WO1989010443A1
公开(公告)日：1989-11-02
申请号：PCT/EP1989000415
申请日：1989-04-18
申请人： PFAFF INDUSTRIEMASCHINEN GMBH , CONTINENTAL AKTIENGESELLSCHAFT , ARBTER, Conrad , MAHLING, Rolf
发明人： PFAFF INDUSTRIEMASCHINEN GMBH , CONTINENTAL AKTIENGESELLSCHAFT
IPC分类号： D05C09/04
CPC分类号： D05C9/04
摘要： Device for clamping regions of a flat material, in particular on embroidery frames. In one embodiment, the material is pulled taut and clamped by varying the perimeter of a fillable clamping element and in another embodiment by twisting a clamping element. To induce a higher clamping force in the material, the first embodiment comprises a clamping element in the form of a wrinkle-free flexible tube (8) with a carcase. By suitable choice of thread angle, clamping can be effected by increasing or decreasing the pressure and by lengthening or shortening the perimeter of the tube. In another embodiment, the clamping element is composed of self-twisting torsion bodies, preferably reinforced hollow bodies (30, 31, 44, 45, 61) which can also form a closed ring. To increase the clamping force without damaging the material, the device comprises a stiff outer ring and a twistable inner ring. The filling pressure in fillable tube in the first embodiment can be varied and the tube can be twisted to allow clamping by providing said tube with non-extensible stiffeners in certain places.
摘要翻译：用于夹紧平面材料区域的装置，特别是在刺绣框架上。在一个实施例中，通过改变可填充夹紧元件的周边并且在另一个实施例中通过扭转夹紧元件将材料拉紧并夹紧。为了在材料中引起更高的夹持力，第一实施例包括具有卡壳的无皱弹性管（8）形式的夹紧元件。通过适当选择螺纹角度，可以通过增加或减小压力并延长或缩短管的周长来实现夹紧。在另一个实施例中，夹紧元件由自扭转体构成，优选地也可形成闭环的加强中空体（30,31,44,45,61）。为了增加夹紧力而不损坏材料，该装置包括刚性的外圈和可扭转的内圈。可以改变第一实施例中的可填充管中的填充压力，并且可以通过在某些位置向所述管提供不可伸展的加强件来扭转管以允许夹紧。

9. 发明申请

WO1988008894A1 THREAD-CUTTING DEVICE FOR ZIG-ZAG SEWING MACHINES 审中-公开
标题翻译： ZIG-ZAG缝纫机用螺纹切割装置
公开(公告)号：WO1988008894A1
公开(公告)日：1988-11-17
申请号：PCT/EP1988000329
申请日：1988-04-19
申请人： PFAFF INDUSTRIEMASCHINEN GMBH , ALBRECHT, Ernst , DINGES, Harald
发明人： PFAFF INDUSTRIEMASCHINEN GMBH
IPC分类号： D05B65/00
CPC分类号： D05B65/00 , D05B73/12
摘要： The blade (28) of the thread-cutting device is movable in a plane parallel to the thread catcher (33) and connected by a drive (45 to 58) provided with stopping sections (54, 55) with the drive of the thread catcher (33) in such a way as to be movable with the latter as far as the cutting position below the center of the eye of the needle. While the blade (25) of the thread-cutting device remains stationary in the cutting position, the thread catcher completes the thread-cutting operation. The blade (28) of the thread-cutting device moves back during the backward movement of the thread catcher (33) only after the threads have been cut. The drive (45 to 58) for the blade (28) of the thread-cutting device functions by interlocking engagement, which ensures reliable sectioning even of thick threads.
摘要翻译：切线装置的刀片（28）能够在与线捕获器（33）平行的平面中移动，并通过设有止动部（54,55）的驱动器（45〜58）与线捕获器（33），以使其能够与针的眼睛中心下方的切割位置一起移动。当切线装置的刀片（25）在切割位置保持静止时，线捕获器完成切线操作。螺纹切割装置的刀片（28）仅在螺纹已经被切割之后在线捕获器（33）的向后移动期间向后移动。螺纹切割装置的刀片（28）的驱动（45至58）通过互锁接合而起作用，这甚至确保了粗螺纹的可靠分段。

10. 发明申请

WO1990008215A1 PROCESS AND SEWING MACHINE FOR STITCHING TWO PIECES OF FABRIC TOGETHER ALONG THE SAME LENGTH 审中-公开
标题翻译：用于缝制两面织物的工艺和缝纫机相同长度
公开(公告)号：WO1990008215A1
公开(公告)日：1990-07-26
申请号：PCT/EP1990000061
申请日：1990-01-11
申请人： PFAFF INDUSTRIEMASCHINEN GMBH , DOBNER, Reinhold , MASSEN, Robert , MERTEL, Bernhard , WILLENBACHER, Erich
发明人： PFAFF INDUSTRIEMASCHINEN GMBH
IPC分类号： D05B35/10
CPC分类号： D05B35/102 , D05B29/06 , D05D2209/02
摘要： Partly overlapping images of typical features of the weave structure (woven or knitted) of each layer of fabric (7, 8) are produced and recorded in a buffer memory as digitalized grey value image signals. The maximum correlation is determined by calculating the cross-correlation function of the overlapping image signals and the feed is determined from this value. The degree of extension of each layer of fabric is determined by calculating the autocorrelation function. If, for example, neither the warp nor the weft threads in a fabric are parallel to the direction of feed, the direction of extension of these threads is determined beforehand. A control signal for a stitch-adjustment device is derived by comparison of the feeds and the degree of extension of the two layers of fabric.
摘要翻译：产生每层织物（7,8）的编织结构（编织或编织）的典型特征的部分重叠图像，并将其记录在缓冲存储器中作为数字灰度图像信号。通过计算重叠图像信号的互相关函数确定最大相关性，并根据该值确定进给。通过计算自相关函数确定每层织物的伸展程度。例如，如果织物中的经纱和纬纱线均不平行于进给方向，那么这些螺纹的延伸方向是预先确定的。通过比较两层织物的进料和伸长程度，可以得到缝合调节装置的控制信号。

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