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Spray paining control method on mineral wool sound-absorbing panel and control system thereof

A mineral wool sound-absorbing panel and a control method technology, which are applied to the device for coating liquid on the surface, the electric fluid pressure control, the flow control using the electric device, etc., can solve the problem of large deviation between the actual flow and the set flow, The actual flow fluctuates greatly, and it takes a long time to reach stability, so as to shorten the response time, improve the control accuracy, and eliminate the fluctuation.

Active Publication Date: 2009-03-18
BEIJING NEW BUILDING MATERIAL
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Problems solved by technology

The current method is mainly to directly control the opening of the pressure regulating valve and the opening and closing state of the exhaust solenoid valve by using the method of addition and subtraction in the PLC, so the deviation between the actual flow and the set flow often occurs in the production process. Large, long time to reach stability, and large fluctuations in actual flow, which easily lead to color difference on the surface of the mineral wool sound-absorbing panel

Method used

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  • Spray paining control method on mineral wool sound-absorbing panel and control system thereof

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Embodiment Construction

[0018] The method for controlling the surface of the sprayed plate of the present invention is specifically as follows: First, the worker pre-sets a given amount of spraying flow in the condition presetting part 2, and the given amount of spraying can achieve the best spraying effect. Before starting to spray the surface of the sheet, the initial spraying pressure must be set in the condition preset part 2. The pressure sensor 3 first detects the pressure in the storage tank 7 and inputs the detection result to the PLC control part 1. The PLC control unit 1 compares the aforementioned initial spraying pressure with the detection result, and adjusts the opening degree of the pressure regulating valve 5 installed on the storage tank 7 and the opening and closing status of the exhaust solenoid valve 6 to control the initial pressure in the storage tank 7. By controlling the initial pressure in the storage tank 7 within an appropriate range, the response time for the actual spraying f...

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Abstract

The invention discloses a control method and a control system used for spraying the surface of a mineral wool sound absorbing board. The spraying control method of the mineral wool sound adsorbing board comprises the steps as follows: a. given quantity of the spraying flux is arranged in advance at the condition pre-arranging part; practical spraying flux is detected in real-time by an electromagnetic flowmeter and the detection result is transmitted to a PLC control part; b. PLC control part compares the prearranged value with the real-time detection valve and adjusts the magnitude of the spraying flux by controlling a pressure adjusting valve and an exhaust electromagnetic valve according to the comparison result. The control system used for the control method comprises a condition prearranging part, a PLC control part and an electromagnetic flowmeter. The mineral wool sound absorbing board disposed by the method and the system completely eliminates the color difference generated on the press-typed spraying process control method.

Description

Technical field [0001] The invention relates to a control method for spraying the surface of a decorative board and a control system for realizing the control method, in particular to a spraying control method and a control system for the surface of a mineral wool sound-absorbing board. Background technique [0002] Mineral wool sound-absorbing board is a kind of indoor roof decorative board widely used in office buildings, conference halls, concert halls and other large places, with dual effects of practicability and decoration. The coating uniformity and color on the surface of the board mainly depend on the control of the surface spraying. Therefore, the control of the surface spraying process directly determines the surface spraying effect of the board. [0003] The current control method of the spraying process on the surface of the mineral wool sound-absorbing panel is: the paint sealed in the tank is controlled by pressure and automatically sprayed to the surface of the pa...

Claims

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Application Information

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IPC IPC(8): B05D7/00B05B12/00B05B15/00G05D7/06G05D16/20
Inventor 冯湛清田龙马雨良赵庆贺张得鑫
Owner BEIJING NEW BUILDING MATERIAL
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