Agitation station, agitation host and control device and control method of agitation host

Abstract

The invention discloses an agitation station, an agitation host and a control device and control method of the agitation host. In the method, the control device controls a discharge door of the agitation host of the agitation station to open within a preset opening time; after the opening time is over, the control device controls the discharge door to keep an opening state within a preset opening keeping time; and after the opening keeping time is over, the control device controls the discharge door to close. By the adoption of the control method of the agitation host of the agitation station, the opening and closing of the discharge door of the agitation host can be controlled felxibly, and control errors cannot be caused by the fault of a middle sensor.

Description

technical field [0001] The invention relates to the field of a mixing station, in particular to a mixing station, a mixing station mixing main engine, and a control device and a control method for a mixing station mixing main engine. Background technique [0002] In the production process of the mixing plant, it is very important to reasonably set the opening of the unloading door of the mixing main engine during unloading to control the unloading of concrete. The action of the discharge door of ordinary mixers is generally driven by pneumatic or hydraulic drive. A fully open position sensor and a fully closed position sensor are installed on or near the discharge door to sense the position of the discharge door and When the discharge door is fully opened, a full open signal is issued, and when the discharge door is fully closed, a full close signal is issued. In addition, one or more intermediate position sensors, such as proximity switches, are also provided. When unload...

AI Technical Summary

Problems solved by technology

In this scheme, the opening of the discharge door of the main engine is limited by the position of the position sensor. Since different concretes have different requirements for the opening of the discharge door, it is inconvenient to adjust the position sensor adaptively, so it is not convenient to pour under the discharge door. Square mixer trucks are difficult to meet user requirements

This solution also has high requirements on the reliability of the position sensor. Once the position sensor fails, it is easy to cause errors in the control of the discharge volume.

In addition, the use of pneumatic drive not only consumes a lot of air, but also consumes a lot of power, and once the air supply of the air compressor is insufficient or the discharge door cannot be opened during a power failure, the discharge flow cannot be controlled in sections or it cannot be closed.

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