CN100470203C - Sensor with steel transfer deflection detection - Google Patents
Sensor with steel transfer deflection detection Download PDFInfo
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- CN100470203C CN100470203C CNB2006101245247A CN200610124524A CN100470203C CN 100470203 C CN100470203 C CN 100470203C CN B2006101245247 A CNB2006101245247 A CN B2006101245247A CN 200610124524 A CN200610124524 A CN 200610124524A CN 100470203 C CN100470203 C CN 100470203C
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- infrared receiving
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Abstract
The invention relates to a belt steel transmission deviation detecting sensor, wherein it comprises infrared emitter and infrared receiver; the infrared emitter is formed by power circuit, frequency impulse generator, driver and infrared emitting circuit; the infrared receiver is formed by power circuit, amplifier, alternative/direct current converter, output circuit and infrared receiving circuit; the invention is characterized in that: the infrared emitting circuit is formed by at least two serially or parallel connected infrared emitting diodes; the infrared receiving circuit is formed by at least parallel connected infrared receiving diodes. The invention has simple structure, small volume, light weight and low power consumption. The invention can be used in cold rolling steel factory, etc, to detect the position deviation of cloth.
Description
Technical field
The present invention belongs to a kind of detecting sensor, particularly a kind of cold-rolled steel sheet band steel transmission deviation detecting sensor in the transmission course before roll bending that is applicable to.
Background technology
In the cold-strip steel unit, in band such as the pickling line of galvanized wire tinned wire pickling line and the cold rolled silicon steel steel wire.Because machine group leader, many, speed is higher, the band steel is easy to sideslip, and strip running deviation not only makes coil of strip can't roll up together, and can make strip edge edge collision flanging damage whole coil volume, the equipment of sideslip collision simultaneously also can cause broken belt, and the stopping production accident is in order to address this problem, both at home and abroad some steel band correction control sensor instrument is a kind of is the high frequency fluorescent tube that adopts as light source, and is furnished with a kind of centering sensor of light-receiving device; Also having a kind of is the magnetic inductive offset sensor of using import.For 30 watts of first kind of high frequency white fluorescent tubes, it has two big shortcomings: the life-span of (1) daylight lamp is low, the fault height, and fault causes the production trouble of shutdown, especially galvanized wire, tinned wire, coated thread, its loss is very big, only be that the trouble of changing a fluorescent tube, (2) are since the daylight of usefulness just is subjected to the influence of surround lighting, on daytime, in evening, one day sunlight all can influence the control of steel band skew; And for second kind of magnetic inductive offset sensor, it has two big shortcomings equally: (1) costs an arm and a leg, (2) power consumption is more.
Summary of the invention
The purpose of this invention is to provide a kind of have simple in structure, strong interference immunity, the band steel transmission deviation detecting sensor that power consumption is little is to have overcome the deficiencies in the prior art.
To achieve these goals, the present invention includes infrared launcher and infrared receiving device, wherein infrared launcher and infrared receiving device are separately fixed at strip edge in the transmission along two ends, the fixed position of infrared launcher and infrared receiving device is corresponding mutually, infrared launcher is by power circuit, frequency pulse generator, driver and infrared emission circuit constitute, infrared receiving device is by power circuit, amplifier, ac/dc (AC/DC) converter, output circuit and infrared receiving circuit constitute, be characterized in: the infrared emission circuit is to be in series or in parallel to form by plural at least infrared-emitting diode, and infrared receiving circuit is to be made of plural at least infrared receiving diode parallel connection.
Above-mentioned infrared receiving device surface has the hole that equates with the infrared receiving diode number, and each infrared receiving diode places in the hole respectively.
The present invention finishes emission function at the infrared emission circuit with special series-parallel system, and powers to power valve with power of fixed frequency.The infrared receiving tube some and connect the mode received signal, and on circuit, be processed into the linear transducer signal to received signal.Because the present invention adopts one group of infrared receiving diode is placed the hole, makes the present invention can not be subjected to the interference of daylight,, make that cost of the present invention is low, power consumption is little because the present invention all adopts electronic devices and components to constitute.The present invention has simple in structure, and is easy to use, and volume is little, in light weight, easy for installation, good stability, and strong interference immunity, power consumption is little, energy-conserving and environment-protective, and be not subjected to the advantage of daylight impression.The present invention not only is used in cold-rolled steel factory, and it is equally applicable to the detection of cloth transmission location skew of paper tape, the weaving mill in steel plate, paper mill.
Description of drawings
Fig. 1 is a fixed position of the present invention synoptic diagram.
Fig. 2 is that the A of Fig. 1 is to view.
Fig. 3 is a functional-block diagram of the present invention.
Fig. 4 is an embodiment of the invention infrared launcher principle schematic.
Fig. 5 is an embodiment of the invention infrared receiving device principle schematic.
Embodiment
The present invention is described in further detail below in conjunction with drawings and Examples, but this embodiment should not be construed as limitation of the present invention.
The present invention includes infrared launcher 2 and infrared receiving device 3, wherein two infrared launchers 2,2 ' and infrared receiving device 3,3 ' be separately fixed at two ends, 1 liang of edge of band steel in the transmission, the mutual corresponding (see figure 1) in the fixed position of infrared launcher 2 and infrared receiving device 3, infrared launcher 2 is made of power circuit, frequency pulse generator, driver and infrared emission circuit, and infrared receiving device is made of power circuit, amplifier, ac/dc (AC/DC) converter, output circuit and infrared receiving circuit.Infrared launcher 2 and infrared receiving device 3 are separately positioned in the box, infrared launcher 2 is made of power circuit, frequency pulse generator, driver and infrared emission circuit, wherein the infrared emission circuit is arranged on the box surface with infrared receiving device 3 opposite faces, infrared receiving device 3 is made of power circuit, amplifier, ac/dc (AC/DC) converter, output circuit and infrared receiving circuit, and infrared receiving circuit is arranged on the box surface with infrared launcher 2 opposite faces.The infrared emission circuit is to be in series or in parallel to form by infrared-emitting diode RD1～RD29 of 29, one group of 14 infrared-emitting diodes series connection among infrared-emitting diode RD1～RD29 of 29,15 infrared-emitting diode series connection of another group, with the formation infrared emission in parallel again of the infrared-emitting diode after two groups of series connection circuit, also be in series with a resistor R 4, R5 respectively in the infrared-emitting diode of two groups of series connection.Infrared receiving circuit is to be made of 50 infrared receiving diode VD1～VD50 parallel connections.Infrared receiving device 3 surfaces have 3.1,50 the infrared receiving diode VD1～VD50 in 50 holes and place (see figure 2) in the hole 3.1 respectively.
The power circuit of infrared launcher 2 (see figure 4)s of the present invention provides power supply to use to frequency pulse generator, transistor driver BG, infrared emission circuit, wherein the output of frequency pulse generator links to each other with the base stage of transistor driver BG, emitter and the power supply negative terminal of transistor driver BG join, and the collector of transistor driver BG is connected with the negative terminal of infrared emission circuit with resistor R 2, R3 by light emitting diode LD.The principle of work of infrared launcher 2 is: in frequency pulse generator, adopt the NE555 integrated package, form an astable multivibrator by NE555 integrated package and a small amount of peripheral cell, the vibration square wave of frequency pulse generator output removes to control the infrared emission circuit by transistor driver BG, constitutes the infrared transmitter that transmission frequency is 22KHz.
The power circuit of infrared receiving device 3 (see figure 5)s of the present invention provides power supply to amplifier, ac/dc (AC/DC) converter, output circuit and infrared receiving circuit, wherein the negative end of infrared receiving circuit links to each other with the positive pole of power circuit by resistor R 6, the negative-phase input of the forward end of infrared receiving circuit and amplifier IC1 joins, the positive input of amplifier IC1 is connected with the earth terminal of power circuit, and the positive input of amplifier IC1 also is connected with the negative end of infrared receiving circuit with capacitor C by the stabilivolt DW of parallel connection; The output terminal of amplifier IC1 links to each other with the AC signal input end of AC/DC converter, the direct-flow output signal of AC/DC converter links to each other by the negative-phase input of the drive block IC2 in resistor R 7 and the output circuit, the positive input of drive block IC2 is connected with the earth terminal of power circuit, and the output terminal OUT of drive block IC2 is as the output of sensor; Drive block IC2 also is provided with original state and adjusts circuit between negative-phase input and output terminal OUT, wherein: the negative-phase input of drive block IC2 links to each other with the output terminal OUT of drive block IC2 with potentiometer RW1 by the resistor R 8 of series connection, wherein the negative-phase input of drive block IC2 also joins by the resistor R 9 of series connection and the adjustable side of potentiometer RW2, and potentiometer RW2 output two ends are connected with the positive and negative electrode of power circuit by resistor R 10, R11 respectively.
The principle of infrared receiving device 3 of the present invention is: infrared receiving circuit is formed an infrared photoelectric sensor head with the parallel way of 50 infrared receiving diode VD1～VD50 (as shown in Figure 5), constituted opto-electronic conversion therefrom, what add on the infrared receiving diode VD is reverse voltage, be that infrared receiving diode VD is in anti-state partially, under anti-state partially, inverse current among the infrared receiving diode VD will change with the variation of incident intensity the offset variation of steel 1 (promptly with), be that inverse current will change with the infrared light pulse working frequency, light signal converts corresponding electric signal to, signal with the incident illumination intensity variation, intensity of illumination is strong more, inverse current is big more, and exports to amplifier IC1 from infrared receiving diode VD pipe two ends.Amplifier IC1 is the backward crossover stream amplifier of dual power supply, its frequency range Du Keda 23KHz, signal after the amplification is delivered to the AC/DC converter, finish the process of AC signal-direct current signal, having arrived the output circuit of next stage behind the signal process AC/DC converter after the amplification handles, the output circuit that drive block IC2 forms is finished anti-phase computing amplification work, makes circuit output end become the linear signal value, i.e. the 0-5VDC direct current signal.
When the present invention uses install two infrared launchers 2,2 ' and infrared receiving device 3,3 ' after, two potentiometer RW1, RW2 in two infrared receiving devices 3 (3 ') output circuit are debugged in energising respectively, make full the photograph when no steel band blocks export 5V (5V), output 0V when blocking entirely, output 2.5V (2.5V) when half blocked, and the direction of action of observation band steel 1 adjustment roller, affirmation can not connect instead., finish installation process.
After output terminal of the present invention connected control device, control device just can be finished taking place to control effectively after the skew incident in the band steel transmission course.
The content that is not described in detail in this instructions belongs to this area professional and technical personnel's known prior art.
Claims (1)
1, a kind of band steel transmission deviation detecting sensor, comprise infrared launcher and infrared receiving device, wherein infrared launcher and infrared receiving device are separately fixed at strip edge in the transmission along two ends, the fixed position of infrared launcher and infrared receiving device is corresponding mutually, infrared launcher is by power circuit, frequency pulse generator, driver and infrared emission circuit constitute, infrared receiving device is by power circuit, amplifier, ac/dc (AC/DC) converter, output circuit and infrared receiving circuit constitute, it is characterized in that: the infrared emission circuit is one group of 14 infrared-emitting diodes series connection in 29 the infrared-emitting diode, 15 infrared-emitting diode series connection of another group are with the formation in parallel again of the infrared-emitting diode after two groups of series connection; The power circuit of infrared receiving device provides power supply to amplifier, ac/dc (AC/DC) converter, output circuit and infrared receiving circuit, wherein infrared receiving circuit is to be made of plural infrared receiving diode parallel connection, the negative end of infrared receiving circuit links to each other with the positive pole of power circuit by resistor R 6, the negative-phase input of the forward end of infrared receiving circuit and amplifier IC1 joins, the positive input of amplifier IC1 is connected with the earth terminal of power circuit, and the positive input of amplifier IC1 also is connected with the negative end of infrared receiving circuit with capacitor C by the stabilivolt DW of parallel connection; The output terminal of amplifier IC1 links to each other with the AC signal input end of AC/DC converter, the direct-flow output signal of AC/DC converter links to each other by the negative-phase input of the drive block IC2 in resistor R 7 and the output circuit, the positive input of drive block IC2 is connected with the earth terminal of power circuit, and the output terminal OUT of drive block IC2 is as the output of sensor; Drive block IC2 also is provided with original state and adjusts circuit between negative-phase input and output terminal OUT, wherein: the negative-phase input of drive block IC2 links to each other with the output terminal OUT of drive block IC2 with potentiometer RW1 by the resistor R 8 of series connection, wherein the negative-phase input of drive block IC2 also joins by the resistor R 9 of series connection and the adjustable side of potentiometer RW2, and potentiometer RW2 output two ends are connected with the positive and negative electrode of power circuit by resistor R 10, R11 respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006101245247A CN100470203C (en) | 2006-09-14 | 2006-09-14 | Sensor with steel transfer deflection detection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006101245247A CN100470203C (en) | 2006-09-14 | 2006-09-14 | Sensor with steel transfer deflection detection |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1920488A CN1920488A (en) | 2007-02-28 |
| CN100470203C true CN100470203C (en) | 2009-03-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006101245247A Expired - Fee Related CN100470203C (en) | 2006-09-14 | 2006-09-14 | Sensor with steel transfer deflection detection |
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| CN (1) | CN100470203C (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7835647B2 (en) * | 2007-10-17 | 2010-11-16 | Hewlett-Packard Development Company, L.P. | Method and system of tracking optical beam shift |
| CN104195584A (en) * | 2014-07-31 | 2014-12-10 | 肇庆宏旺金属实业有限公司 | Steel belt correcting device |
| CN105136008B (en) * | 2015-07-24 | 2018-01-09 | 太原理工大学 | A kind of strip offset detecting device |
| CN107866448B (en) * | 2017-11-01 | 2023-08-18 | 中色科技股份有限公司 | Centering control system |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1345926A (en) * | 1970-09-22 | 1974-02-06 | Grah Beteiligungsgesellschaft | Devices for controlling the position of a continuous strip |
| CN2411263Y (en) * | 1999-12-10 | 2000-12-20 | 黄华昌 | Yarn detector |
-
2006
- 2006-09-14 CN CNB2006101245247A patent/CN100470203C/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1345926A (en) * | 1970-09-22 | 1974-02-06 | Grah Beteiligungsgesellschaft | Devices for controlling the position of a continuous strip |
| CN2411263Y (en) * | 1999-12-10 | 2000-12-20 | 黄华昌 | Yarn detector |
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| Publication number | Publication date |
|---|---|
| CN1920488A (en) | 2007-02-28 |
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Granted publication date: 20090318 Termination date: 20130914 |