CN102073327A - Online monitoring and control system for continuous flat press plate blank thickness of artificial plate - Google Patents
Online monitoring and control system for continuous flat press plate blank thickness of artificial plate Download PDFInfo
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- CN102073327A CN102073327A CN2010106012358A CN201010601235A CN102073327A CN 102073327 A CN102073327 A CN 102073327A CN 2010106012358 A CN2010106012358 A CN 2010106012358A CN 201010601235 A CN201010601235 A CN 201010601235A CN 102073327 A CN102073327 A CN 102073327A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
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Abstract
The invention relates to an online monitoring and control system for continuous flat press plate blank thickness of an artificial plate. The new system comprises a data acquisition unit, a wireless transmission unit, a storage, analysis and display unit and an automatic rack adjusting unit. The system is characterized in that: an artificial plate blank (1) is conveyed through a belt conveyer (2), a thickness detection device (3) is arranged on the belt conveyer (2), and three differential transformer type displacement sensors placed on the thickness detection device (3) are contacted with the surface of the artificial plate blank (1); along with feed and movement of the artificial plate blank (1), the surface height of the artificial plate blank (1) is changed; the differential transformer type displacement sensors wirelessly transmit data signals to a data analysis unit (4), sample and process the data signals, transmit the processed data signals to a central control unit (5) and display test data; and the central control unit (5) judges the data signals. If the thickness error fluctuates in an allowed range, adjustment is not performed, and production is normally performed; if the thickness error exceeds a warning value, an alarm is given and the production is suspended, the central control unit (5) sends a control command to operate the suspended belt conveyer (2), an adjusting roller (8) is adjusted, namely a predetermined position (6) at the tail end of the belt conveyer (2) is moved to a target position (7), and the unqualified artificial plate blank (1) is discarded in front of the inlet of a press so that the subsequent produced plate can reach the qualified standard; if the thickness of the artificial plate blank is changed and accords with the level of a certain artificial plate, the central control unit (5) selects proper press distance and pressure according to the thickness of the plate blank.
Description
(1) technical field
The present invention relates to a kind of wood-based plate continuous flat press slab thickness Online Monitoring Control System, belong to the wood-based plate technical field of measurement and test.
(2) background technology
The monitoring of slab thickness deviation is one of gordian technique of continuous flat press in the building board production process, and the precise monitoring slab thickness changes, in time feedback monitoring information is problem demanding prompt solution in the building board production process with accurate control pavement thickness.
Most of artificial board product lines are by to the preestablishing of press roll gap gap to the control of slab thickness and finished product thickness, and the contact stop control of used thickness rule or control automatically realizes.In actual production, the easy viscous material of thickness attribution and other impurity, and influence thickness control accuracy.The inertia of contact stop owing to being difficult to avoid boosting reduces control accuracy, and the degree of reliability is not high.
The adjustment of slab thickness is often relied on producers' experience, so just directly caused the thickness deviation of product excessive, thereby made product quality can not get basic assurance, high-grade ratio defective product is extremely low, has had a strong impact on economic benefit of enterprises.Thickness deviation becomes one of key technical index of reflection wood-based plate quality, and how effectively thickness deviation to be controlled at becomes the problem that Wood-based Panel Production enterprise continues solution in the Min..In recent years, control technologys such as sensing, monitoring and computing machine have obtained develop rapidly, and this provides advantageous conditions for monitoring system in aspect researchs such as the automatic calibration of data acquisition, signal Processing, calculating, skew and gain error, digital filtering, demonstration, canned data and application.
(3) summary of the invention
The objective of the invention is to overcome the defective and the deficiency of prior art, a kind of simple, monitoring dependable performance, highly sensitive wood-based plate continuous flat press slab thickness on-line monitoring system of disposing is provided.
System of the present invention comprises: data acquisition unit, wireless transmission unit, signal processing unit, central control unit and belt supply unit.Of the present invention being characterized as: wood-based plate continuous flat press slab top is equipped with differential transformer displace, then sensor signal is passed through the wireless transmission sensing technology, be transferred to signal processing unit, and it is sampled, handles, finally pass to central control unit, show test data, make things convenient for central control room to observe and control.
Artificial board blank thickness needs predefined important parameter when being the action of control wood-based plate continuous flat press.On the one hand, utilize the slab thickness value control that monitors to adorn the entrance location of plate belt transporter at press; On the other hand, the spacing size of press import is determined according to slab thickness.
Produce different size (material, thickness etc.) wood-based plate, consider the slab deformation after the precompressed, operational characteristiies such as expansion, the thickness of slab and pressure all exist corresponding relation after the thickness of profiled sheeting and the precompressed, to control the size of press import spacing according to slab thickness, and then controlled pressure is to produce the profiled sheeting of qualified thickness, in view of the above, with the wood-based plate classification of several thickness of production usually, in central control unit, set its slab thickness, the all multiparameters of pressure rating make the top of the slab on the belt conveyer and press import arrive the position of setting.By the thickness on-line monitoring system, the thickness of real-time detection slab floats in allowed band as thickness error, does not then adjust, and normally produces; Surpass warning value as thickness error, report to the police and time-out production, be transferred to central control unit by detected thickness signal, the position of adjusting press import and belt ends is to the suitable parameters value, and the sheet material that makes it to produce can reach criterion of acceptability.
Consider that slab self is comparatively soft, elasticity is bigger, carry out the large tracts of land contact type measurement as the slab surveying instrument so choose sensitivity differential transformer displace higher, that range is bigger.Mainly be by add the input signal of certain frequency and amplitude to device, when slab thickness changes, cause the mutual inductance value to change, make by phase-sensitive detection circuit, to obtain data parameters by differential voltage signal of secondary side output.
One crossbeam is arranged on the width of plate slab direction, 3 differential transformer displaces placed side by side on it, sensor probe contacts with steel slab surface, detects thickness range and reaches 5-150mm, and accuracy of detection reaches ± 0.05mm.
Beneficial effect of the present invention: overcome that the prior art accuracy of detection is low, sensitivity is low and the high shortcoming of price, this system has reasonable in design, monitoring accuracy height, easy and simple to handle, good reliability and the low characteristics of price.
(4) description of drawings
Fig. 1 is a kind of embodiment synoptic diagram of the present invention.
(5) embodiment
The invention will be further described below by embodiment.
In Fig. 1, artificial board blank (1) transports through band conveyor (2), thickness detection apparatus (3) is installed on band conveyor (2), and placing 3 differential transformer type displacement sensors on the thickness detection apparatus (3) contacts with artificial board blank (1) surface, along with artificial board blank (1) moves do feeding, its surface height changes, differential transformer displace radios to data analysis unit (4) with data-signal, and it is sampled, handle, pass to central control unit (5), show test data, and central control unit (5) judgment data signal.If thickness error floats in allowed band, then do not adjust, normally produce; If thickness error surpasses warning value, report to the police and time-out production, central control unit (5) sends control command, to suspend band conveyor (2) operation, adjust dancer rools (8), be about to the terminal precalculated position (6) of belt conveyor (2) and move to target location (7), defective artificial board blank (1) is abandoned before the press import, the sheet material that makes it the generate subsequent output can reach criterion of acceptability; If artificial board blank thickness changes, meet certain wood-based plate level of thickness, then central control unit (5) is according to slab thickness, select suitable press spacing and pressure, in time regulate press adjusting mechanism (9) and pressure adjustmenting mechanism (10), so that press import spacing and press pressure adapt to the slab of different-thickness.
Claims (1)
1. wood-based plate continuous flat press slab thickness Online Monitoring Control System comprises: data acquisition unit, wireless transmission unit, inventory analysis display unit and frame automatic adjustment unit.Of the present invention being characterized as: artificial board blank (1) transports through band conveyor (2), thickness detection apparatus (3) is installed on band conveyor (2), and placing 3 differential transformer type displacement sensors on the thickness detection apparatus (3) contacts with artificial board blank (1) surface, along with artificial board blank (1) moves do feeding, its surface height changes, differential transformer displace radios to data analysis unit (4) with data-signal, and it is sampled, handle, pass to central control unit (5), show test data, and central control unit (5) judgment data signal.If thickness error floats in allowed band, then do not adjust, normally produce; If thickness error surpasses warning value, report to the police and time-out production, central control unit (5) sends control command, to suspend band conveyor (2) operation, adjust dancer rools (8), be about to the terminal precalculated position (6) of belt conveyor (2) and move to target location (7), defective artificial board blank (1) is abandoned before the press import, the sheet material that makes it the generate subsequent output can reach criterion of acceptability; If artificial board blank thickness changes, meet certain wood-based plate level of thickness, then central control unit (5) is according to slab thickness, select suitable press spacing and pressure, in time regulate press adjusting mechanism (9) and pressure adjustmenting mechanism (10), so that press import spacing and press pressure adapt to the slab of different-thickness.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010106012358A CN102073327A (en) | 2010-12-23 | 2010-12-23 | Online monitoring and control system for continuous flat press plate blank thickness of artificial plate |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010106012358A CN102073327A (en) | 2010-12-23 | 2010-12-23 | Online monitoring and control system for continuous flat press plate blank thickness of artificial plate |
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| CN102073327A true CN102073327A (en) | 2011-05-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010106012358A Pending CN102073327A (en) | 2010-12-23 | 2010-12-23 | Online monitoring and control system for continuous flat press plate blank thickness of artificial plate |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106679722A (en) * | 2016-12-29 | 2017-05-17 | 云南司珈尔木业股份有限公司 | Artificial board automatic inspection machine |
| CN114323146A (en) * | 2021-12-31 | 2022-04-12 | 苏州苏福马机械有限公司 | Method and equipment for diagnosing reliability of sensing system of continuous press |
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| CN1704716A (en) * | 2004-06-03 | 2005-12-07 | 中南大学 | High accuracy online aluminium plate convexity detection apparatus |
| CN101050946A (en) * | 2006-04-07 | 2007-10-10 | 西山不锈化学股份有限公司 | Apparatus for measuring thickness of glass substrate |
| CN201077163Y (en) * | 2007-07-24 | 2008-06-25 | 信阳木工机械有限责任公司 | Ratio hydraulic valve and displacement sensor combined slab thickness control device |
| CN101758085A (en) * | 2009-12-23 | 2010-06-30 | 常熟华冶薄板有限公司 | Method for control steel plate thickness in cold-rolled plate rolling process |
| CN101806592A (en) * | 2010-05-06 | 2010-08-18 | 泰兴汤臣压克力有限公司 | On-line double-sided automatic thickness measuring device of organic glass |
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2010
- 2010-12-23 CN CN2010106012358A patent/CN102073327A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1704716A (en) * | 2004-06-03 | 2005-12-07 | 中南大学 | High accuracy online aluminium plate convexity detection apparatus |
| CN101050946A (en) * | 2006-04-07 | 2007-10-10 | 西山不锈化学股份有限公司 | Apparatus for measuring thickness of glass substrate |
| CN201077163Y (en) * | 2007-07-24 | 2008-06-25 | 信阳木工机械有限责任公司 | Ratio hydraulic valve and displacement sensor combined slab thickness control device |
| CN101758085A (en) * | 2009-12-23 | 2010-06-30 | 常熟华冶薄板有限公司 | Method for control steel plate thickness in cold-rolled plate rolling process |
| CN101806592A (en) * | 2010-05-06 | 2010-08-18 | 泰兴汤臣压克力有限公司 | On-line double-sided automatic thickness measuring device of organic glass |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106679722A (en) * | 2016-12-29 | 2017-05-17 | 云南司珈尔木业股份有限公司 | Artificial board automatic inspection machine |
| CN114323146A (en) * | 2021-12-31 | 2022-04-12 | 苏州苏福马机械有限公司 | Method and equipment for diagnosing reliability of sensing system of continuous press |
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Application publication date: 20110525 |