CN202120131U - Artificial board continuous flat pressing machine slab thickness on-line monitoring and control system - Google Patents
Artificial board continuous flat pressing machine slab thickness on-line monitoring and control system Download PDFInfo
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- CN202120131U CN202120131U CN2010206868104U CN201020686810U CN202120131U CN 202120131 U CN202120131 U CN 202120131U CN 2010206868104 U CN2010206868104 U CN 2010206868104U CN 201020686810 U CN201020686810 U CN 201020686810U CN 202120131 U CN202120131 U CN 202120131U
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Abstract
The utility model relates to an artificial board continuous flat pressing machine slab thickness on-line monitoring and control system. The system comprises a data acquisition unit, a wireless transmission unit, a storage analysis display unit and a frame self adjusting unit. Advantages of the system are that an artificial board slab (1) is conveyed via a belt conveyer (2), a thickness detection device (3) is arranged on the belt conveyer (2), three differential transformer type displacement sensors which contact with the artificial board slab (1) in a surface contact manner are arranged on the thickness detection device (3), the height of the surface of each differential transformer type displacement sensor changes along with feeding movement of the artificial board slab (1), and the differential transformer type displacement sensors transmit data signals to a data analysis unit (4) in a wireless manner for sampling and processing and then transmit the signals to a central control unit (5) for displaying test data and determining the data signals. If the thickness error floating is within an allowed scope, no adjusting is conducted, and production is conducted as usual; if the thickness error exceeds a guarding value, alarm is emitted and production is suspended, the central control unit (5) emits a control command to stop operation of the belt conveyer (2), an adjusting roller (8) is adjusted, that is to say, a predetermined position (6) at the terminal of the belt conveyer (2) is moved to an object position (7), and an defective artificial board slab (1) is discarded in front the pressing machine inlet, so the subsequently produced sheet material can satisfy a qualified standard; and if the thickness of the artificial board slab changes and is in accordance with certain thickness grade of the artificial board, the central control unit (5) selects a suitable pressing machine space and suitable pressure and timely adjust a pressing machine adjusting mechanism (9) and a pressure adjusting mechanism (10) so that the pressing machine inlet space and the pressing machine pressure can adapt to slabs with different thicknesses.
Description
(1) technical field
The utility model relates to a kind of wood-based plate continuous flat press slab thickness Online Monitoring Control System, belongs 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 through 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 of product deviation 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 research such as the automatic calibration of data acquisition, signal Processing, calculating, skew and gain error, digital filtering, demonstration, canned data and application.
(3) utility model content
The purpose of the utility model is defective and the deficiency that overcomes prior art, and 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.
The system of the utility model comprises: data acquisition unit, wireless transmission unit, signal processing unit, central control unit and belt supply unit.Being characterized as of the utility model: 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 confirmed according to slab thickness.
Produce the wood-based plate of different size (material, thickness etc.); Consider operational characteristiies such as slab deformation after the precompressed, expansion, the thickness of slab and pressure all exist corresponding relation after the thickness of profiled sheeting and the precompressed, 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 kinds of thickness of producing usually, in central control unit; Set its slab thickness, the many parameters of pressure rating, made the top of the slab on the belt conveyer and press import arrive the position of setting.Through the thickness on-line monitoring system, the thickness of real-time detection slab floats in allowed band like thickness error, does not then adjust, and normally produces; Surpass warning value like thickness error, report to the police and time-out production, be transferred to central control unit through detected thickness signal, the position of adjustment 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 through add the input signal of certain frequency and amplitude to device, when slab thickness changes, cause the mutual inductance value to change, make through 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, be arranged side by side 3 differential transformer displaces on it, sensor probe contacts with steel slab surface, detects thickness range and reaches 5-150mm, and accuracy of detection reaches ± 0.05mm.
The beneficial effect of the utility model: overcome that the prior art accuracy of detection is low, sensitivity is low and the high shortcoming of price, this system has that reasonable in design, monitoring accuracy are high, 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 utility model.
(5) embodiment
Through embodiment the utility model is described further below.
In Fig. 1, artificial board blank (1) transports through band conveyor (2), and 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, and differential transformer displace radios to data analysis unit (4) with data-signal; And it is sampled, handles; 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, will suspend band conveyor (2) operation; Adjustment 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 different-thickness slab.
Claims (1)
1. wood-based plate continuous flat press slab thickness Online Monitoring Control System, comprising: data acquisition unit, wireless transmission unit, inventory analysis display unit and frame automatic adjustment unit is characterized by: 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) and contacting 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, handles, 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, will suspend band conveyor (2) operation; Adjustment 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 |
|---|---|---|---|
| CN2010206868104U CN202120131U (en) | 2010-12-29 | 2010-12-29 | Artificial board continuous flat pressing machine slab thickness on-line monitoring and control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206868104U CN202120131U (en) | 2010-12-29 | 2010-12-29 | Artificial board continuous flat pressing machine slab thickness on-line monitoring and control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202120131U true CN202120131U (en) | 2012-01-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206868104U Expired - Fee Related CN202120131U (en) | 2010-12-29 | 2010-12-29 | Artificial board continuous flat pressing machine slab thickness on-line monitoring and control system |
Country Status (1)
| Country | Link |
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| CN (1) | CN202120131U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104511961A (en) * | 2013-12-15 | 2015-04-15 | 广西鹿寨通用人造板有限公司 | Quick automatic throwing board control device |
| CN115635561A (en) * | 2022-09-16 | 2023-01-24 | 上海人造板机器厂有限公司 | Three-dimensional processing apparatus of slab |
-
2010
- 2010-12-29 CN CN2010206868104U patent/CN202120131U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104511961A (en) * | 2013-12-15 | 2015-04-15 | 广西鹿寨通用人造板有限公司 | Quick automatic throwing board control device |
| CN115635561A (en) * | 2022-09-16 | 2023-01-24 | 上海人造板机器厂有限公司 | Three-dimensional processing apparatus of slab |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120118 Termination date: 20121229 |