Conveying chain rotating platform rotation control method and rotation control device

A technology of rotation control device and rotating platform, which is applied in the direction of conveyor control device, transportation and packaging, conveyor, etc., can solve the problem of inaccurate target stop position, and achieve the effect of improving rotation control precision and fast and accurate stop

Inactive Publication Date: 2017-03-22
SHOUGANG JINGTANG IRON & STEEL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The embodiment of the present invention solves the technical problem that the target stop position of the rotating platform is inaccurate by providing a method for controlling the rotation of the rotating platform of the transport chain and a rotating control device.

Method used

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  • Conveying chain rotating platform rotation control method and rotation control device
  • Conveying chain rotating platform rotation control method and rotation control device
  • Conveying chain rotating platform rotation control method and rotation control device

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specific example

[0043] Firstly, according to the rotation angle value fed back by the rotary encoder within the range of -0.45° to 0.45°, the zero limit switch 5 can detect the start signal, and the rotary motor rotates the rotary platform at a speed of 14 degrees / second at a speed of 80%. The angular velocity rotates clockwise (-90 degrees);

[0044] Next, the PLC compares the rotation angle value fed back by the rotary encoder with the set value of the deceleration position -70 degrees. When the rotation angle value fed back by the PLC to the rotary encoder is equal to -70 degrees, indicating that the rotary platform reaches the deceleration point, the PLC The control system issues a low-speed rotation command to the rotating motor, and the rotating motor switches from 80% to 35% of the speed according to the low-speed rotation command, so that the rotating platform rotates to the target stop position (-90 degrees) at an angular velocity of 6 degrees per second ; Before the rotating platfor...

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Abstract

The invention discloses a conveying chain rotating platform rotation control method and a rotation control device, which are applied in the field of steel coil conveying control. The conveying chain rotating platform rotation control method comprises the steps of receiving a rotation angle value fed back by a rotary encoder arranged on a rotary motor; after operating the rotary motor at a first rotary speed, judging the received rotation angle value to be within a preset switchover range; controlling the rotary motor to operate at a second rotary speed switched from the first rotary speed, wherein the second rotary speed is less than the first rotary speed; and after operating the rotary motor at the second rotary speed, controlling the rotary motor to stop operating switched from the second rotary speed if monitoring a starting signal of a target limit switch arranged on a rotating platform or judging the received rotary angle value is equal to a target angle value. The conveying chain rotating platform rotation control method and the rotation control device provided by the invention solve the technical problem that the rotating platform cannot rotate to a target stop position accurately, so that the rotating platform can quickly and accurately rotate to the target stop position.

Description

technical field [0001] The invention relates to the field of steel coil transportation control, in particular to a rotation control method and a rotation control device for a transportation chain rotary platform. Background technique [0002] Steel coil transportation in hot rolling mills basically adopts a double-row pallet transportation chain system, which consists of heavy-duty pallet transportation lines, light-load pallet transportation lines, traversing platforms, and rotating platforms. Among them, the rotating platform is the most critical part of the entire pallet transportation system. It rotates more than a thousand times a day on average. Its stable operation can ensure the normal return of the transportation chain. [0003] In existing production, the target stop position of the rotating platform is inaccurate. For example, the rotating platform does not rotate in place or exceeds the limit, so that the roller table of the rotating platform cannot be aligned wi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B65G29/00B65G43/00
CPCB65G29/00B65G43/00
Inventor 张伟海刘顺东陈建宇胡娜童燕成张勇张绍文胡润平
Owner SHOUGANG JINGTANG IRON & STEEL CO LTD
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