A method for unloading coils from a trolley for steel coils
A steel coil trolley and trolley technology, which is applied in the field of coil unloading by the steel coil trolley, can solve the problems of the trolley being blocked in lateral movement, unable to remove the steel coil from the coiler shaft, and prone to deformation, so as to improve productivity and success rate and stability, to ensure the effect of stable operation
Active Publication Date: 2020-07-17
BEIJING SHOUGANG CO LTD
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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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Embodiment 1
[0023] Such as figure 1 As shown, the embodiment of the present invention provides a method for unloading a steel coil trolley, the method comprising:
[0024] Step 110: Before unloading the coil, the trolley is first lifted to the predetermined position, and after the strip steel flick is completed, it is slowly lifted to the roll touching position;
[0025] Specifically, the saddle of the coil unloading trolley is lowered to a low position and enters under the coiler. After the tailing of the strip steel is completed, the trolley starts to lift slowly. Location. The traversing action is driven by a variable frequency motor, and the traversing position measuring device is a laser range finder, which measures the displacement of the trolley in real time. The hoisting position of the trolley is calculated by the encoder, and the judgment of the rolling position of the saddle of the trolley is realized by simultaneous detection of the encoder and the hydraulic pressure switch ...
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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...
Claims
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IPC IPC(8): B21C47/24
CPCB21C47/24
Inventor 张志杰石岩胡晓周刘传鹏苗贺武张立强郑利元齐杰斌
Owner BEIJING SHOUGANG CO LTD