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Gypsum board cutting control method and system with fixed length

A fixed-length cutting and control system technology, which is applied to the program control, electrical program control, and feedback control in the sequence/logic controller, can solve the problem that the cutting can only be controlled at about 2‰, and achieve The effect of improving shearing accuracy, system stability, and meeting process requirements

Active Publication Date: 2011-03-23
北新建材(苏州)有限公司
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  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

However, due to reasons such as detection, modeling, and algorithms, the cutting accuracy can generally only be controlled at about 2‰

Method used

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  • Gypsum board cutting control method and system with fixed length
  • Gypsum board cutting control method and system with fixed length
  • Gypsum board cutting control method and system with fixed length

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Embodiment Construction

[0026] Such as figure 1 As shown, the present invention includes: a detection unit 3, a central processing unit 1 and a motor control unit 2, wherein,

[0027] The detection part 3 is used for online detection of the moving speed V of the gypsum board 6 l and length L;

[0028] The central processing unit 1 is used to process the data signal detected online by the detection unit 3, and output the control signal to the motor control unit 2;

[0029] The motor control unit 2 is used to drive the knife rollers 4 and 5 to rotate in three speed zones: acceleration zone GB; synchronous zone BC; deceleration zone CG to rotate, such as figure 2 Shown, and make the speed of the knife edge of knife roller 4,5 meet in each district:

[0030] Acceleration zone GB: V r = V l · ( 1 ± ΔP N )

[...

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Abstract

The invention discloses a gypsum board cut-to-length control method which comprises the steps of (a) on-line-measuring the speed VI and the length L of the movement of a gypsum board; (b) sequentially dividing knife roll circumferential rotary speed into three speed regions; and (c) controlling the edge of an upper knife roll and the edge of a lower knife roll to exactly engage with each other when the actual length L of the movement of the gypsum is equal to a give length L', so as to shear off the gypsum board in the synchronous region BC according to the given length. The invention furtherdiscloses a gypsum board cut-to-length control system which comprises a detection part, a central processing part and a motor control part. The method controls the edges of the knife rolls to better rotate circumferentially, thereby greatly improves the shearing precision of the fixed length of the gypsum, and the shearing precision can reach up to 0.67%. The system has the advantages of dynamic and static state properties, high precision, stable system ad satisfaction for technique requirements.

Description

technical field [0001] The invention relates to a control method and a control system for gypsum board shearing. Background technique [0002] The production of gypsum board is a continuous production process. The fixed-length cutting of gypsum board wet board is an important production link of gypsum board production. At present, the method of function module + servo control system is mainly used for cutting. However, due to reasons such as detection, modeling, and algorithms, the cutting accuracy can generally be controlled at about 2‰. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a gypsum board fixed-length cutting control method and a servo control system with a cutting precision of 0.67‰. [0004] A kind of gypsum board cut-to-length control method of the present invention comprises the following steps: [0005] a. On-line measurement of the moving speed V of the gypsum board l and length L; [0006] ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05B19/04B28B11/14G05D3/20
Inventor 白宏成周建中雷晓辉李瑞亭
Owner 北新建材(苏州)有限公司
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