摘要:
Method of monitoring the quality of an advancing yarn by continuously measuring the yarn tension, which includes determining the progression of the yarn tension upon occurrence of a defined failure (failure record), storing the failure record in a data memory, comparing the measured yarn tension with the failure record and generating an alarm signal, when a range of the yarn tension progression shows a similarity to the failure record.
摘要:
A noise discriminator circuit and a noise discrimination method in a burst mode receiver is configured to determine the validity of an incoming burst signal by analyzing the timing of the signal edges of incoming signal to look for a time duration conforming to the preamble data bits of a valid burst signal. In one embodiment, the noise discriminator circuit and method analyze the time duration between signal edges of the same pulse of an incoming signal. In another embodiment, the noise discriminator circuit and method analyze the time duration between a first set of pulses of an incoming signal and the time duration between signal edges of a second set of pulses of the incoming signal. When the time durations are within a given time range relating to a predetermined timing separation of a valid burst signal, the incoming signal is validated as a valid burst signal.
摘要:
A yarn withdrawal apparatus for continuously withdrawing a yarn from a feed yarn package and then from a reserve package, where the trailing yarn end on the feed package is knotted to the leading end of the yarn on the reserve package. The transition of the yarn from the feed yarn package to the reserve yarn package is detected by a sensor, which includes a movable yarn guide, which moves during the transition from an inactive position to a signaling position in a first degree of freedom of movement. To prevent the movable yarn guide from rebounding when it reaches the signaling position, the yarn guide or an element connected thereto defines a second degree of freedom of movement which is different from the first degree of freedom of movement, and such that after the rebound the movement is of such a kind that a departure from the signaling position back toward the inactive position is geometrically not possible.
摘要:
A multiplexer circuit for selecting one of first and second input signals based on a first input select signal includes a multiplexer, a control circuit and an enable buffer. The multiplexer selects one of the first and second input signals based on a second input select signal generated by the control circuit and provides a second output signal. The control circuit receives the second output signal and the first input select signal to generate the second input select signal and an enable signal where the signals have transitions synchronized to the transitions of the second output signal. The enable buffer operates to allow or disallow the second output signal to be passed as the output signal of the multiplexer circuit in response to the enable signal. The multiplexer circuit operates to eliminate runt pulse generation during the switching over of the input signals to provide an error-free output data stream.
摘要:
A multiplexer circuit for selecting one of first and second input signals based on a first input select signal includes a multiplexer, a control circuit and an enable buffer. The multiplexer selects one of the first and second input signals based on a second input select signal generated by the control circuit and provides a second output signal. The control circuit receives the second output signal and the first input select signal to generate the second input select signal and an enable signal where the signals have transitions synchronized to the transitions of the second output signal. The enable buffer operates to allow or disallow the second output signal to be passed as the output signal of the multiplexer circuit in response to the enable signal. The multiplexer circuit operates to eliminate runt pulse generation during the switching over of the input signals to provide an error-free output data stream.
摘要:
A method and apparatus for monitoring the quality of the yarn processed on a false twist texturing machine is disclosed, and which includes sensing the tension of the advancing yarn at a location immediately downstream of the false twist unit, and determining the coefficient of variation of the sensed tension. An error signal is generated whenever the coefficient of variation exceeds a predetermined upper limit and whenever the coefficient of variation drops below a predetermined lower limit. Also, an alarm signal is generated whenever the error signal exceeds the predetermined upper limit for a predetermined time, and whenever the error signal drops below the predetermined lower limit for a predetermined time, and the alarm signals are counted so as to provide an indication of the quality of the yarn.
摘要:
A method and apparatus for controlling a false twist texturing machine, which extends the previously known process for controlling operation during the normal operation of the machine, to exceptional operating conditions, such as during yarn thread-up and/or restarting after a temporary stoppage of operation by reason of a power failure. In accordance with the invention, the known method which includes control of the frictional force imparted to the yarn as a function of the yarn tension, is modified in such a manner that during periods other than normal operation, the control of the frictional force as a function of the yarn tension is terminated, and a predetermined frictional force is imparted to the yarn.
摘要:
Use of a layered material comprising a layered material comprising (i) a first layer comprising polyvinylbutyral (PVB, and (ii) a second layer comprising an adhesive, wherein the first layer comprises irradiation-treated areas for making an adhesive label; articles containing the layered material and methods of making the layered material.
摘要:
The invention relates to a recirculating construction machine for handling bottles or similar containers, having a rotor rotatably supported about a vertical machine axis on a machine frame and that can be driven about said machine axis, having a plurality of handling positions on the rotor, having an annular enclosure concentrically enclosing the machine axis and forming, or the housing thereof forming, an interior bounded from the environment and tillable with a sterile gaseous and/or vapor medium, in which the functional elements of the handling positions each extend at least into a partial area acting together with the containers, and in which the containers are received at least in an opening area during handling.
摘要:
A method for supplying a number of service providers with technical service devices makes is possible to reduce the expense incurred by a service provider for supplying its service employees with service devices and simultaneously and to improve the service processes of the service provider and/or its quality of service. According to the invention, a number of service devices are assigned to each of the service providers, and each of the service providers respectively perform services at a number of facility locations that are located at locations different from storage locations for service devices thereof. The inventive method comprises the followings steps: managing the service devices via a device service provider to which the respective number of service devices can be made available by the service providers, with the aid of a data processing system, whereby each of the service providers can access the data processing system, and a delivery of one or more service devices of the service provider to a desired facility location can be requested via the data processing system; delivering the requested service device(s) to the desired facility location via the device service provider.