公开(公告)号：US4161297A

公开(公告)日：1979-07-17

申请号：US665568

申请日：1976-03-10

申请人： Sergio Vella

发明人： Sergio Vella

IPC分类号： B65H51/22 ,  D03D47/36 ,  B65H51/20

CPC分类号： D03D47/364 ,  B65H51/22 ,  B65H2701/31 ,  Y02B10/30

摘要： In a feeding device with constant adjustable tension for a yarn being fed from a yarn source to a yarn using machine, as a weaving machine, are provided: a fixed hollow body, around which the yarn coming from said source is wound into turns by an element rotating outwardly of said fixed body and coaxially thereto, to form thereon a yarn reserve from which the actual yarn is drawn, to be sent to said yarn using device, passing inside the fixed hollow body; an adjustable brake means cooperating with said fixed body, for braking the yarn with constant intensity, downstream of said yarn reserve; and a device associated with the fixed hollow body, for adjusting and keeping even the amount of said yarn reserve. The brake comprises a round element, formed by a solid central part and by a peripheral part with radial blades, arranged between an electromagnet mounted on said rotary element for winding the yarn, and the outer edge of said hollow body onto which the yarn gets wound, said blades being elastically bent at their ends with which they engage said edge, and said electromagnet housing the end of its core into an appropriate seat provided at the center of the solid part of said round element.

摘要翻译： 在从纱线源向纱线使用机器供给的纱线的张力恒定的进给装置中，作为织造机器，设置有：固定的中空体，来自所述源的纱线围绕所述固定中空体卷绕成 元件从所述固定体向外旋转并与其同轴，在其上形成纱线储备部，通过该纱线储存器将实际纱线从该纱线储存器送出，送到所述纱线使用装置，通过固定中空体内部; 与所述固定体配合的可调节制动装置，用于在所述纱线储备的下游以恒定的强度制动所述纱线; 以及与固定中空体相关联的装置，用于调节和保持所述纱线储备的量。 制动器包括圆形元件，其由实心中心部分和具有径向叶片的周边部分形成，该圆形元件布置在安装在所述旋转元件上的用于卷绕纱线的电磁体和所述中空体的外部边缘之间缠绕纱线 所述叶片在其端部处弹性弯曲，与所述边缘接合，并且所述电磁体将其芯部的端部容纳在设置在所述圆形元件的实心部分的中心处的合适的座中。

公开(公告)号：US4051871A

公开(公告)日：1977-10-04

申请号：US573003

申请日：1975-04-30

申请人： Sergio Vella

发明人： Sergio Vella

IPC分类号： D03D51/00 ,  D03D51/34

CPC分类号： D03D51/34 ,  D03D51/02

摘要： Electronic device for controlling weft yarn insertion in continuous weft feed looms, without shuttles, adapted to stop the loom and emit a corresponding signal, not only each time there is a breakage or absence of a weft yarn, but also whenever the undesired insertion of double wefts occurs. This device comprises a plurality of transducers, each activated by a weft yarn, a logic network and means for stopping the loom, said logic network comprising means for storing a predetermined law of insertion of the individual weft yarns corresponding to a certain weaving operation on the loom, and for comparing with said law the actual weft insertions detected by the transducers.

公开(公告)号：US3940079A

公开(公告)日：1976-02-24

申请号：US441864

申请日：1974-02-12

申请人： Sergio Vella

发明人： Sergio Vella

IPC分类号： B65H51/22 ,  B65H59/22 ,  D03D47/36 ,  D04B15/48 ,  B65H51/20

CPC分类号： D04B15/484 ,  B65H51/22 ,  D03D47/364 ,  B65H2701/31

摘要： A yarn feeding device for feeding yarns to weaving and knitting machines and devices with a constant, adjustable tension, in which a yarn reserve is wound onto a stationary cage by means of a rotating framework. The device also comprises means for braking the yarn, and means for regulating the action of said brake means and for modifying the amount of said reserve. In this device, the yarn is drawn with a constant tension, and is sent to the weaving or knitting machine or device as if it were drawn from a stationary reserve.

摘要翻译： 一种纱线喂入装置，用于将纱线喂给编织机器和具有恒定的可调节张力的装置，其中纱线储备通过旋转框架缠绕到固定的笼子上。 该装置还包括用于制动纱线的装置，以及用于调节所述制动装置的作用并修改所述储备量的装置。 在这种装置中，纱线以恒定的张力拉伸，并被送到织造或针织机器或装置上，就好像是从静止的储备中抽出来的。