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31. 发明授权

US4302968A Method and apparatus for measuring the linear density of a travelling fiber sliver 失效
标题翻译：用于测量行进纤维条的线密度的方法和装置
公开(公告)号：US4302968A
公开(公告)日：1981-12-01
申请号：US84894
申请日：1979-10-15
申请人： Robert Moser
发明人： Robert Moser
IPC分类号： D01H5/42 , G01B13/04 , D01H5/52
CPC分类号： D01H5/42
摘要： The method is used for producing measuring values depending on the linear density of a fiber sliver transported through a measuring funnel. A measuring signal transmitted from the measuring funnel is transformed into a proportional electric voltage signal and is continually integrated. The apparatus comprises a measuring funnel connected pneumatically with a pneumatic/electric transducer which transmits a signal to an integration circuit means. A control logic which cooperates with a gear of the transmission of the spinning preparatory machine is connected with the integrating circuit means via a proximity initiator which transmits an impulse to the control logic at each passage of a tooth. The integrating circuit means supplies measuring values suitable as a control signal for spinning preparatory machines, which signal is independent of the speed of the fiber sliver.
摘要翻译：该方法用于根据通过测量漏斗传送的纤维条的线密度来产生测量值。从测量漏斗传递的测量信号被变换为比例电压信号，并且被连续地集成。该装置包括与气动/电传感器气动连接的测量漏斗，其将信号传输到积分电路装置。与纺纱准备机的传动装置配合的控制逻辑通过接近起动器与积分电路装置连接，邻近起动器在牙齿的每个通道处将脉冲传递到控制逻辑。积分电路装置提供适合作为纺纱准备机的控制信号的测量值，该信号与纤维条的速度无关。

32. 发明授权

US4187587A Textile machine having hydraulically controlled drafting rollers 失效
标题翻译：纺织机械具有液压牵伸辊
公开(公告)号：US4187587A
公开(公告)日：1980-02-12
申请号：US887299
申请日：1978-03-16
申请人： Louis Vignon
发明人： Louis Vignon
IPC分类号： D01H5/52 , B30B15/16
CPC分类号： D01H5/52
摘要： Pressure between rollers in each set thereof in a drawing frame is maintained by oil pressure in a main pipe circuit connected to piston and cylinder assemblies allocated to the sets of rollers. A motor driven pump feeds oil from a tank through a feed pipe to the main circuit except when a first solenoid-controlled valve directs the oil through a first return-flow pipe branched from the feed pipe. So long as a pressure gauge connected to the main circuit is indicating the pressure to be below a minimum, it excites the first solenoid-controlled valve to close the first return-flow pipe. When, as a result of lapping on a drafting roller the gauge indicates a maximum pressure, it causes the machine to stop. A second solenoid-controlled valve has its excitation periodically suppressed to open a passage through a second return-flow pipe to prevent the temperature of the drawing frame from overheating the main pipe circuit.
摘要翻译：每个组中的辊子之间的压力通过连接到分配给该组辊子的活塞和气缸组件的主管回路中的油压保持。电动机驱动的泵将油从油箱通过进料管供给主回路，除了当第一电磁控制阀引导油通过从进料管分支的第一回流管时。只要连接到主电路的压力表将压力表示为低于最小值，则激发第一电磁阀关闭第一回流管。当由于在牵伸辊上研磨而产生最大压力时，会导致机器停止。第二电磁阀具有周期性抑制的激励以打开通过第二回流管的通道，以防止牵引架的温度过热主管回路。

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