JP2010047892A5 - - Google Patents

Claims (28)

In order to continuously measure at least one of the cross-sectional area and the mass of at least one fiber sliver for a spinning pretreatment machine having a kneading mechanism for drawing fiber material in the form of stranded wire The apparatus includes a pair of rollers arranged such that one roller is immovable and the other roller is arranged so as to be movable away from the one roller and pressed against each other. And a device having a non-contact distance sensor for measuring a distance from a corresponding surface, wherein:
The spacing sensors (9, 25; 47; 57, 57 ₁ , 57 ₂ ; 60) are connected to the holding elements (52, 52b, 53a, 53b) for the rollers (7, 8; 15, 16; 42, 43). Characterized in that it is integrated with respect to the device. The corresponding surface is coupled to the holding element for one of the rollers;
The spacing sensor is coupled to the holding element for the other roller; and
2. The device according to claim 1, wherein the distance sensor and the corresponding surface are respectively arranged on the side surfaces of the holding elements facing each other.   The apparatus of claim 1, wherein the distance sensor is immovable and the corresponding surface is arranged to move relative to the distance sensor.   The apparatus of claim 1, wherein the distance sensor is arranged to move and the corresponding surface is immovable relative to the distance sensor.   The apparatus according to claim 1, wherein the corresponding surface is an outer surface of the holding element for one of the rollers.   The apparatus of claim 1, wherein the corresponding surface is a surface of a corresponding element coupled to one of the rollers.   The apparatus according to claim 1, wherein the corresponding element is integrated with respect to the holding element for one of the rollers.   The apparatus according to claim 1, wherein the distance sensor is an inductive displacement sensor.   The apparatus of claim 8, wherein the inductive displacement sensor comprises a plunger coil and a plunger core.   7. A device according to claim 6, characterized in that the distance sensor and the corresponding element are arranged in an enclosure housing.   11. A device according to any one of the preceding claims, characterized in that the device is employed for detecting and displaying sliver breaks.   The apparatus according to claim 1, wherein the distance sensor indirectly detects the displacement of the detection target roller.   The apparatus of claim 1, wherein the spacing sensor is employed to measure the sliver mass of a long and generally untwisted fiber sliver combination.   The apparatus according to claim 1, wherein the spacing sensor is used to measure the sliver mass in the case of a continuously moving fiber sliver combination.   The measured value for the sliver mass is to equalize the sliver mass variation in the fiber sliver combination by controlling at least one drafting element of the spinning pre-processing machine where the fiber sliver combination is being stretched Device according to claim 14, characterized in that it is used in   The apparatus according to claim 1, characterized in that the measurement of the sliver mass of the moving fiber sliver combination is performed in a spinning pre-processor having a plurality of sequential drafting elements that stretch the fiber sliver.   2. The apparatus according to claim 1, wherein the distance sensor is disposed at at least one of an inlet of a training mechanism and an outlet from the training mechanism of the spinning pretreatment machine.   The sliver mass variation is monitored at at least one of the inlet and outlet, and if the value for at least one of the sliver mass and sliver mass variation is greater or smaller than a threshold value, the spinning pretreatment 18. A device according to claim 17, characterized in that the machine is deactivated and a warning signal is issued.   14. The gap sensor according to claim 13, wherein the distance sensor is arranged to measure a sliver break of the fiber sliver combination or a sliver break of one fiber sliver of the fiber sliver combination. Equipment.   The spectrum of the fiber sliver combination, or a part of the spectrum, is generated or added using a plurality of measurements obtained by at least one of the distance sensors. Equipment.   The spectrum of the fiber sliver combination is recorded at at least one of an inlet of the spinning pre-processing machine and an outlet from the spinning pre-processing machine. Equipment.   A plurality of fiber slivers that run side by side and that are parallel in plan view are guided from the intake to the outlet through the spinning pre-processing machine. A device according to claim 1.   The fiber sliver combination or the individual group of fiber slivers constituting the fiber sliver combination is guided through at least one funnel or through a guide element. 13. The apparatus according to 13.   Biasing of the holding element movably mounted for the distance sensor is achieved and the biasing can be adjusted by mechanical, electrical, hydraulic or pneumatic means 24. The apparatus according to any one of claims 1 to 23.   The apparatus according to claim 17, wherein an axis of the drawing roller at the outlet is disposed horizontally.   The apparatus according to claim 17, wherein an axis of the drawing roller at the outlet is arranged vertically.   27. Apparatus according to any one of claims 1 to 26, characterized in that a control pulse is transmitted to the controller.   28. The apparatus according to claim 27, wherein the controller adjusts a rotation speed of at least one drive motor of the training frame that performs the drafting.