Liquid crystal display panel elevator precise positioning control system and method

A precise positioning and liquid crystal panel technology, which is applied in elevators, electrical program control, program control in sequence/logic controllers, etc., can solve problems such as transportation instability, economic loss, and cargo shaking, and reduce elevator accidents, The effect of preventing falling or hitting the roof and low cost

CN110155828AActive Publication Date: 2019-08-23HEFEI SHANGJU IND EQUIP +2
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2019-08-23

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Abstract

The invention provides a liquid crystal display panel elevator control system and method. The system comprises a PLC, a driving motor, a frequency converter, a servo motor, and a servo driver. The PLCis connected with a barcode reader and used for outputting a control signal according to position information, read by the barcode reader, of a barcode strip, the driving motor is used for driving alift car of an elevator to ascend and descend, the frequency converter is connected with the PLC and the driving motor and used for controlling the driving motor according to a control signal of the PLC, the servo motor is used for driving a transport line in the lift car to ascend and descend, the servo driver is connected with the PLC and the servo motor, and is used for driving the servo motorto rotate according to a control signal of the PLC controller, through the servo motor, lifting of the transport line in the lift car is achieved, the problem that a steel wire rope deforms, and the transport line in the lift car has the deviation with the height of the outer transport line is well solved, and the position control precision of the transport line in the lift car is controlled within 0.5 mm.
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Description

technical field

[0001] The invention relates to the technical field of hoists, in particular to a precise positioning control system and method for a hoist with a liquid crystal panel. Background technique

[0002] The hoist is a mechanical conveying device with a fixed device, which can realize vertical reciprocating conveying of materials up and down. This type of LCD panel hoist has the characteristics of advanced control, reliable performance, and high positioning accuracy of the hoisting car, so it is widely used in automatic production industries such as home appliances, machinery and electronics, and warehousing and logistics. However, when the weight of the goods in the car is too large, after the goods are transported out of the car, the steel wire rope of the hoist will have a certain elastic deformation, resulting in a deviation in the positioning of the car when it is empty and loaded. The goods are transported from the transport line inside the car to the outsi...

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Embodiment Construction

[0021] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments It is some embodiments of the present invention, but not all of them. Based on the implementation manners in the present invention, all other implementation manners obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention. Accordingly, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the invention. Based on the implementation manners in the present invention, all other implement...