Control method of automatic alignment control device for spraying joints of asphalt spreading paver

Abstract

A control method for an automatic alignment control device for spraying seams of an asphalt spreading paver, the control device includes a controller, a touch display, a speed sensor, an angle sensor, a front nozzle valve group, a side nozzle valve group and a rear nozzle valve group Nozzle manifold. The control method is: (1) collect instructions and data; (2) calculate the delay time t from the front nozzle valve group to the front end of the side nozzle valve group 1 ; (3) Calculate the delay time t of two adjacent nozzle valves in the side nozzle valve group 2 ; (4) Calculate the delay time t from the rear end of the side nozzle valve group to the rear nozzle valve group 3 ; (5) In the beginning stage of spraying and paving, the controller delays the control; (6) In the end stage of spraying and paving, the controller delays the control. Through the above delay control process, the automatic alignment of the spraying edge at the joint of the road surface is perfectly realized, avoiding material waste and road surface pollution.

Description

technical field [0001] The invention belongs to the technical field of asphalt spreading and paver, and particularly relates to a control method of an automatic alignment control device for spraying joints of asphalt spreading and paver in the technical field of asphalt spreading and paver with segmented spray bar layout. Background technique [0002] Asphalt spreading paver is a pavement construction machine that realizes the simultaneous spreading and paving of modified emulsified asphalt and asphalt mixture. The spraying of emulsified asphalt is realized by multiple nozzle valves installed on the spraying rod. The installation of the spraying rod should ensure that the emulsified asphalt material sprayed on the ground will not be crushed and damaged by the walking crawler of the machine. In view of this, the spraying bar generally adopts the following two layouts: one is an integrated spraying bar layout, all nozzle valves are installed on the same fixed angle spraying ba...

AI Technical Summary

Problems solved by technology

[0006] Based on the above defects in the prior art, the technical problem to be solved by the present invention is to provide an automatic alignment control device and method for the spray joints of an asphalt spreading paver to solve the problems caused by the layout of the existing segmented spray bars. The problem that the spraying edge cannot be aligned at the joint of the road surface makes the paver ensure that the spraying edge is aligned at the joint of the road surface at the beginning or end of the spraying paving to achieve a perfect spraying effect and avoid material waste and road pollution

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