Coil stripping method for steel coil trolley

Abstract

The invention discloses a coil stripping method for a steel coil trolley, and relates to the technical field of automatic control. The method comprises the following steps: before coil stripping is carried out, the trolley is lifted to a predetermined position, and then is slowly lifted to a coil touch position; when the trolley is lifted to the coil touch position, a pressure switch signal is fedback to a PLC to determine whether a trolley saddle is lifted to the coil touch position or not; after the trolley saddle is lifted to the coil touch position, the trolley stays in the coil touch position; after a mandrel is contracted, the height change of a steel coil is compensated to make the center line of the steel coil superposed with the center line of the mandrel; and the trolley transversely moves to make the steel coil moved out of the mandrel area in order to end coil stripping. The method solves the technical problems of easy deformation of a coated steel coil during coil stripping, blocking of the transverse movement of the trolley and no smooth movement of the steel coil out of the mandrel of a reeling machine, and achieves the purposes of effectively improving the successrate and the stability of the coil stripping of the trolley, ensuring the stable running of a set and increasing the production rate.

Description

technical field [0001] The invention relates to the technical field of automatic control, in particular to a method for unloading coils from a trolley for steel coils. Background technique [0002] The strip steel processing line will coat the steel coils before coiling according to the process requirements, so as to achieve various strip steels that can meet different needs. [0003] However, in the process of implementing the technical solutions in the embodiments of the present application, the inventors of the present application found that the above-mentioned prior art has at least the following technical problems: [0004] The coated steel coil in the prior art is easily deformed when unloading the coil, and the lateral movement of the trolley is hindered, so that the steel coil cannot be smoothly removed from the coiler shaft. Contents of the invention [0005] The embodiment of the present invention provides a method for unloading a steel coil trolley. Through the...

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Problems solved by technology

[0005] The embodiment of the present invention provides a method for unloading a steel coil trolley. Through the above method, the coated steel coil in the prior art is easily deformed when the coil is unloaded, and the lateral movement of the trolley is hindered, so that the steel coil cannot be smoothly removed from the coil. Technical problem with the movement of the movement shaft

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