JP2010065370A5 - - Google Patents

Claims (28)

A machine device with a spinning gap, the device comprising:
Correcting the measurement signal relating to the thickness of at least one fabric fiber sliver;
The signal is obtained by a pair of detection rolls,
One of the two detection rolls is arranged in a fixed position;
The other of the two sensing rolls is arranged such that a force can be applied and move away from the sensing roll located in the fixed position;
The apparatus can detect in real time a periodic error value resulting from the non-roundness or eccentricity of the pair of detection rolls,
The pair of detection rolls is connected to an electric signal generating means (displacement sensor) and a rotation angle transmitter,
In the apparatus, the electrical signal generating means (displacement sensor) and the rotation angle transmitter send their signals to the input of an electrical system, and the output of the electrical system sends the corrected measurement signal,
By applying pressure to the fixed detection roll (7, 15, 42) arranged at the fixed position by the movable detection roll (8, 16, 43) arranged to be movable, Circumferential surfaces (7 ′, 15 ′, 42 ′) of the detection rolls (7, 15, 42) arranged in a fixed position and the movable detection rolls (8, 16, 43) arranged so as to be able to move. ) Contact with the circumferential surface (8 ′, 16 ′, 43 ′), and the detection roll (7, 8; 15, 16; 42, 43) can rotate during the contact. An apparatus for a machine having a spinning gap.   The position-related measurement signal can be formed that indicates a deviation of the path of the movable detection roll when the gap between the center points of the paired detection rolls changes. The device described in 1.   3. An apparatus according to claim 1 or 2, characterized in that, for at least one rotation of the paired sensing rolls, a measurement signal related to position can be generated.   4. A position-related measurement signal can be formed that indicates a deviation of the path when the trajectory of the circumferential surface of at least one of the detection rolls changes. The apparatus in any one of.   5. The bias according to claim 1, wherein a standard roll having a desired value is used to determine the bias due to the non-roundness of the paired sensing rolls. apparatus.   6. The apparatus according to claim 1, wherein one of the paired detection rolls is mounted rotatably or pivotably.   The apparatus according to any one of claims 1 to 6, wherein the movable detection roll is arranged to be pressed against the fixed detection roll by means for generating a force.   The apparatus according to any one of claims 1 to 7, wherein the movable detection roll or the holding member of the movable detection roll is interlocked with the electric signal generating means.   When the non-roundness of at least one of the detection rolls occurs, a periodic error value in the measurement signal indicating the deviation of the path of the movable detection roll is generated when contacting the fixed detection roll. Device according to any of the preceding claims, characterized in that it can.   9. The bias of the path of the movable detection roll due to the non-roundness of at least one of the detection rolls can be converted into an electric measurement signal by an electric signal generating means. The apparatus in any one of.   The apparatus according to claim 1, further comprising a signal processing unit that responds to the measurement signal indicating a deviation of the path of the movable detection roll when the fixed detection roll is contacted. .   The apparatus according to claim 11, wherein the periodic error value included in the electrical measurement signal can be detected by the signal processing means.   The cyclic error value associated with at least one rotation-induced position of the paired sensing rolls can be stored in a memory of an electrical control stabilizer. The apparatus according to any one of 1 to 12.   During the operation of the paired detection rolls, the periodic error value stored in the memory is used to correct the electric density variation signal of the currently measured fiber material to the same position. 14. Device according to claim 13, characterized in that it can be used as a correction element of a static control stabilization device.   15. A device according to any one of the preceding claims, characterized in that the stopper can be released in order to bring the pair of detection rolls into contact with each other.   Device according to any of the preceding claims, characterized in that an aerodynamic cylinder, motor or magnetic switch can be used to release the stopper.   The device according to claim 15, wherein the stopper is spring loaded.   18. A device according to any one of the preceding claims, characterized in that the pressure exerted by the paired sensing rolls is reduced to a minimum value during the contact.   The pressure element may apply a first force while detecting non-roundness or contact, and may apply a second force greater than the first force during operation in contact with the fiber material. Device according to any of the preceding claims, characterized in that it can.   18. Apparatus according to claim 17, characterized in that the force of the aerodynamic cylinder can be increased during the concentricity error measurement in order to overcome the force of the spring loaded stopper.   21. The apparatus according to claim 1, wherein the pair of detection rolls includes a groove roll and a protrusion roll.   21. The apparatus according to claim 1, wherein the pair of detection rolls includes two step rolls.   The apparatus according to claim 15, wherein after the non-roundness measurement, the stopper can generate a normal gap between the circumferential surfaces of the paired detection rolls.   A non-contact gap sensor is provided for measuring the gap from a counter surface (scanning surface) that cooperates with a holding member for one of the paired detection rolls. 24. Apparatus according to any one of claims 1 to 23.   25. The apparatus according to claim 24, wherein the gap sensor cooperates with a holding member for another of the paired detection rolls.   The apparatus according to claim 25, wherein the gap sensor and the counter surface are provided on the holding member side so as to face each other.   25. The apparatus of claim 24, wherein the gap sensor is integrated with the holding member for a sensing roll.   The counter surface cooperates with the holding member for one detection roll, the gap sensor cooperates with the holding member for another detection roll, and the counter surface and the gap sensor face each other. The device according to claim 24, wherein the device is provided on a holding member side.