摘要:
An arrangement for ascertaining the presence of foreign bodies in a mass of fiber tufts includes a fiber tuft-supporting surface having a width; a device for providing a loose fiber tuft layer on the fiber tuft-supporting surface; and a foreign body detecting apparatus arranged for scanning the fiber tuft layer for foreign bodies. The foreign body detecting apparatus has a detector device formed of a plurality of individual sensors arranged side-by-side along the width of the surface. There is further provided a device for effecting relative displacement between the fiber tuft layer and the apparatus in a direction perpendicular to the surface width.
摘要:
A carding machine has a main carding cylinder, an electromotor drivingly connected to the carding cylinder and a control device, including a memory, for controlling the rpm of the carding cyliner. The main carding cylinder has a starting phase during which the main carding cylinder is accelerated to a working rpm and a stopping phase during which the main carding cylinder is decelerated from a working rpm to standstill. The method of operating the carding machine includes the steps of storing in the memory material-specific sets of rpm values for the starting phase and sets of rpm values for the stopping phase; and controlling the rpm of the main carding cylinder in the starting and stopping phases by the control device in accordance with respective rpm values stored in the memory.
摘要:
A method of regulating fiber quantities supplied to a fiber processing machine of a fiber processing line. The latter includes a fiber storing apparatus connected downstream of the fiber processing machine and receives processed fiber therefrom. The fiber processing machine includes a feed roller supplying fiber thereto. The method comprises the following steps: continuously rotating the feed roller by a regulatable drive during operation of the fiber processing line; generating a measuring value representing momentary fiber quantities in the storing apparatus; generating an analog electric signal representing the measuring value; and applying the analog electric signal to the regulatable drive of the feed roller for varying the rpm thereof as a function of the fiber quantity in the storing apparatus.
摘要:
In an apparatus at a spinning preparation machine, especially at a carding machine, cleaner, draw frame, combing machine or the like, having at least one electric motor-driven roller, which is rotatably mounted about its longitudinal axis, the roller is caused to rotate by means of forces of an electromagnetic field that act on at least one roller end-face. In order to achieve a substantially increased drive output and braking output and a high torque in a simple manner, an electromotive drive means is present having a rotor and a stator which are integrated into the roller and into an immobile machine element associated with the roller.
摘要:
In a spinning room machine, especially a flat card, roller card or cleaner, an apparatus for processing, especially grinding and/or sharpening, a clothing on a roller has a processing device which is movable along a track. The spinning room machine has an electronic control and regulation device together with a drive control, which is used for controlling the speed of rotation of the processing device. In order to control and/or regulate all functions of or for the processing device using means that are simple in terms of equipment, control and/or regulation of or for the processing device is integrated into the control and regulation device of the spinning room machine, functional elements of or for the processing device and the control and regulation device of the spinning room machine being capable of exchanging signals.
摘要:
An apparatus at a spinning room machine, especially a spinning preparation machine, for example a carding machine or draw frame, for visual signal display, has at least two light sources in the form of light-emitting diodes (LEDs), each of which is associated with a cover, the signal display—which is in communication with a control device—being capable of emitting signals of light of different colours. In order to provide an apparatus which especially is of simple construction and allows a reduced outlay in terms of manufacture and installation, a plurality of light-emitting diodes or lighting means, which are located inside a clear or opaque cover, are capable of emitting coloured or white light corresponding to the particular operating situation of the spinning room machine.
摘要:
A drawing frame includes an inlet measuring organ sensing a property of a plurality of slivers as they are simultaneously introduced into the drawing frame and emitting a measuring signal representing a magnitude of the property; a regulating drawing unit including a plurality of drawing rolls defining a drawing region along which the slivers are drafted as they run through the drawing frame, a drive for rotating the drawing rolls and a control arrangement for regulating the drive as a function of the measuring signal for varying the draft of the slivers in the drawing region such that mass fluctuations in the slivers are equalized. The control arrangement changes the measuring signal into an actual control signal as a function of operational conditions to compensate for influences derived from the operational conditions and affecting measuring results. The control signal is applied to the drive.
摘要:
A textile machine has a rotary part, an openable and closable cover having a closed position in which access to the rotary part is prevented and an open position in which access to the rotary part is allowed. There are further provided a lock having a bolted position in which the cover is locked in the closed position and an unbolted position in which the cover is allowed to be moved into the open position and a standstill monitor for sensing rotation and standstill of the rotary part. The standstill monitor is connected to the lock for placing the lock into the bolted or unbolted position. The standstill monitor comprises an incremental rotary sensor coupled to the rotary part and controlling the lock.
摘要:
In an apparatus at a spinning room machine, especially a carding machine, cleaner or the like, for drawing a clothing onto a roller using a roller drive unit, which apparatus comprises a drive motor arranged to be in drive connection with the roller drive unit or with at least one roller of the machine, the drive motor co-operates with a rotary speed adjustment device. In order to allow, by simple means, automatic matching of the actual value of the speed of rotation to a prespecified value of the speed of rotation, the drive motor co-operates with a closed-loop rotary speed control device which is incorporated into the control and regulation device of the spinning room machine.
摘要:
An apparatus for generating measuring values representing the thickness of a coherent fiber material, includes an optical device having a light transmitter emitting a light beam and a light detector, an arrangement for guiding the fiber material between the light transmitter and the light detector and a device for processing signals generated by the light detector. The light detector comprises an image processing CCD member aligned with the light beam emitted by the light transmitter.