A steel sheet shape control method includes, (A) setting a target correction shape of the steel sheet at a position of an electromagnet to a curved shape, (B) measuring a steel sheet shape when electromagnetic correction is performed, (C) calculating the steel sheet shape in a nozzle position based on the steel sheet shape, (D) repeating (B) and (C) by resetting the target correction shape to a curved shape having a smaller amount of warp, (E) when the amount of warp of the steel sheet shape at the position of the nozzle is less than the upper limit value, (F) calculating vibration of the steel sheet at the position of the nozzle, and (G) adjusting a control gain of the electromagnet until amplitude of vibration is less than a second upper limit value when the amplitude of the vibration is equal to or more than the second upper limit value.

A steel sheet shape control method includes, (A) setting a target correction shape of the steel sheet at a position of an electromagnet to a curved shape, (B) measuring a steel sheet shape when electromagnetic correction is performed, (C) calculating the steel sheet shape in a nozzle position based on the steel sheet shape, (D) repeating (B) and (C) by resetting the target correction shape to a curved shape having a smaller amount of warp, (E) when the amount of warp of the steel sheet shape at the position of the nozzle is less than the upper limit value, (F) calculating vibration of the steel sheet at the position of the nozzle, and (G) adjusting a control gain of the electromagnet until amplitude of vibration is less than a second upper limit value when the amplitude of the vibration is equal to or more than the second upper limit value.

The machine (1) comprises: an unwinding section (3) of parent reels (Ba, Bb) of web material (Na, Nb); a cutting station (13), comprising a plurality of cutting members (201, 203) to divide the web material (Na, Nb) into longitudinal strips (S); a plurality of winding stations (15); in each winding station (15), a guide arm (31) to guide the longitudinal strip (S), adjustable parallel to the rotation axis (C-C) of the winding mandrel (51). The cutting station (13) comprises sensor members (213, 214) to detect the position of the cutting members (201, 203). A control unit (216) is interfaced with the sensor members (213, 214) of the cutting station (13) and the positioning actuators (27), to position the guide arms (31) parallel to the rotation axis (C-C) of the respective winding mandrel (51) as a function of the position of the corresponding cutting member (201, 203).

The machine (1) comprises: an unwinding section (3) of parent reels (Ba, Bb) of web material (Na, Nb); a cutting station (13), comprising a plurality of cutting members (201, 203) to divide the web material (Na, Nb) into longitudinal strips (S); a plurality of winding stations (15); in each winding station (15), a guide arm (31) to guide the longitudinal strip (S), adjustable parallel to the rotation axis (C-C) of the winding mandrel (51). The cutting station (13) comprises sensor members (213, 214) to detect the position of the cutting members (201, 203). A control unit (216) is interfaced with the sensor members (213, 214) of the cutting station (13) and the positioning actuators (27), to position the guide arms (31) parallel to the rotation axis (C-C) of the respective winding mandrel (51) as a function of the position of the corresponding cutting member (201, 203).

A material strip feeding detection method for a stacking machine and a material strip feeding detection apparatus for the stacking machine are provided. The material strip comprises a plurality of first electrode plates distributed continuously in a feeding direction. The method comprises: shooting with at least one set of camera apparatuses to obtain at least one material strip image; determining whether the material strip image comprises a first marker and a second marker; acquiring a target deviation of the first marker relative to a preset position based on the material strip image in response to determining that the material strip image comprises the first marker; controlling the material strip feeding detection apparatus to perform feeding deviation rectification of the material strip conveyed on a conveying mechanism based on the target deviation, and controlling a cutting mechanism to cut the material strip on the conveying mechanism after the feeding deviation rectification.

A printing apparatus includes a mark sensor, a moving section, a web edge sensor, and a printer control section. The moving section can move the mark sensor in a direction intersecting a transport direction of a sheet, or in a width direction. The web edge sensor can detect a location of an edge of the sheet. The printer control section controls the moving section to compensate for a location of the mark sensor, on the basis of a detection result from the web edge sensor which indicates the location of the edge of the sheet.

A printing apparatus includes a mark sensor, a moving section, a web edge sensor, and a printer control section. The moving section can move the mark sensor in a direction intersecting a transport direction of a sheet, or in a width direction. The web edge sensor can detect a location of an edge of the sheet. The printer control section controls the moving section to compensate for a location of the mark sensor, on the basis of a detection result from the web edge sensor which indicates the location of the edge of the sheet.

The present disclosure is a conveyor device which feeds a thin workpiece from an unwinding roll and conveys the thin workpiece on a conveyance path. The conveyor device includes first movable holding members, fixed holding members, a cutting device, second movable holding members, a first position sensor, and a first correction mechanism.

The present disclosure is a conveyor device which feeds a thin workpiece from an unwinding roll and conveys the thin workpiece on a conveyance path. The conveyor device includes first movable holding members, fixed holding members, a cutting device, second movable holding members, a first position sensor, and a first correction mechanism.

The invention relates to an unwinding system for unwinding a tire component from a stock reel and outputting said tire component in a transport direction, wherein the unwinding system comprises a reel station, a conveyor and a transfer device, wherein the conveyor extends at least partially above the reel station, wherein the transfer device comprises a retaining surface for releasably retaining the tire component along a guide path between a pick-up position for picking up the tire component from the reel station and a release position for disposing the tire component on the conveyor, wherein, in the release position, the retaining surface is facing towards the conveyor, and wherein the retaining surface is offset between the release position and the pick-up position over an offset angle of at least ninety degrees around an inverting axis that is parallel to the conveyor and perpendicular to the transport direction.