CN110926338B - Method and device for determining reference position of steel strip - Google Patents
Method and device for determining reference position of steel strip Download PDFInfo
- Publication number
- CN110926338B CN110926338B CN202010103781.2A CN202010103781A CN110926338B CN 110926338 B CN110926338 B CN 110926338B CN 202010103781 A CN202010103781 A CN 202010103781A CN 110926338 B CN110926338 B CN 110926338B
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- Prior art keywords
- steel strip
- color
- determining
- controller
- reference position
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 109
- 239000010959 steel Substances 0.000 title claims abstract description 109
- 238000000034 method Methods 0.000 title claims abstract description 26
- 238000010438 heat treatment Methods 0.000 claims abstract description 27
- 239000003086 colorant Substances 0.000 claims abstract description 5
- 238000005259 measurement Methods 0.000 claims abstract description 5
- 238000000137 annealing Methods 0.000 claims description 25
- 239000013307 optical fiber Substances 0.000 claims description 13
- 230000007246 mechanism Effects 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 description 8
- 238000001514 detection method Methods 0.000 description 6
- 230000006698 induction Effects 0.000 description 3
- 238000005520 cutting process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000007723 transport mechanism Effects 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
- G01J3/46—Measurement of colour; Colour measuring devices, e.g. colorimeters
- G01J3/50—Measurement of colour; Colour measuring devices, e.g. colorimeters using electric radiation detectors
Abstract
A method of determining a reference position of a steel strip, comprising: 1) heating a section of the steel strip to a color-changing temperature, and forming a color difference between a heating section and a non-heating section on the surface of the steel strip after the steel strip is heated; 2) adopting a color sensor to identify different colors formed after the surface of the steel strip is heated, determining the color change position of the steel strip, and 3) taking the color change position as the length measuring reference point of the steel strip. The invention also correspondingly provides a device for determining the reference position of the steel strip by using the method. The invention utilizes the difference of the colors of the heating section and the non-heating section formed when the steel strip is heated, and adopts the color sensor to identify the color difference between the heating section and the non-heating section of the steel strip, thereby determining the position of color change, and taking the position as the reference point of measurement, therefore, the invention can achieve lossless, correct and simple positioning. In particular, the determination of the initial position and the determination of the length of the steel strip can be conveniently and automatically carried out by the controller through the sensing signals of the color sensor.
Description
Technical Field
The invention relates to a method for determining a reference position of a steel strip and a corresponding device thereof.
Background
The steel strip can be used for manufacturing different types of products, and how to manufacture the steel strip with the set length is the basic requirement, so that the determination of the reference position of the steel strip is the basis of the accurate measurement of the length of the steel strip, which is very important, and particularly the success or failure of the length measurement required in the automatic production is the key point. The existing steel belt positioning is to additionally add a recognizable process hole to a steel belt and accurately position the steel belt by detecting the hole position through infrared, but the complexity and the cost of equipment are increased, and the product is also damaged.
Most of the existing automatic clockwork spring processing equipment adopts on-line annealing, and then processes such as cutting, hooking, curling and the like are carried out, the whole clockwork spring manufacturing process has a long period, particularly the annealing time almost occupies half of the clockwork spring processing period, the production efficiency is very low, and the advantages of the automatic clockwork spring processing equipment are difficult to exert. Therefore, the applicant develops the clockwork spring processing equipment with off-line annealing, namely, the annealing process of the steel strip is placed at the forefront of the whole clockwork spring processing process, the annealing process with fixed length is independently carried out firstly, then the annealing process is fed into the storage tank, the formed feeding mechanism simultaneously takes materials from the storage tank, the coiling forming with fixed length is carried out, blanking and cutting are carried out, thus the annealing process and the forming process can be simultaneously completed, the clockwork spring manufacturing time is not additionally occupied, and the production efficiency of the clockwork spring automatic processing equipment is greatly improved.
However, since the difference in the steel strip conveying length between the annealing feeding mechanism and the forming feeding mechanism may cause the inconsistency between the annealing position formed when the steel strip is annealed and the blanking position formed when the steel strip is formed, the annealing position of the annealed steel strip needs to be compensated correspondingly during the blanking, but when the difference value of the positions is unstable or accumulated errors are generated by multiple times of circulating operation, problems may be caused to the operation of the equipment, even the equipment cannot operate.
Disclosure of Invention
The present invention is directed to overcoming the above-mentioned disadvantages of the prior art and providing a method for determining a reference position of a steel strip, which can easily position the steel strip without damage.
The invention also correspondingly provides a device for determining the reference position of the steel strip by using the method, which can simply and nondestructively position the steel strip.
The technical scheme adopted by the invention for solving the technical problems is as follows:
a method of determining a reference position of a steel strip, comprising: 1) heating a section of the steel strip to a color-changing temperature, and forming a color difference between a heating section and a non-heating section on the surface of the steel strip after the steel strip is heated; 2) adopting a color sensor to identify different colors formed after the surface of the steel strip is heated, determining the color change position of the steel strip, and 3) taking the color change position as the length measuring reference point of the steel strip.
Preferably, the determination of the color changing position of the steel strip is realized by a controller, specifically: and transmitting the signal detected by the color sensor to the controller, and receiving the signal and determining the color change position of the steel strip by the controller, so that the length of the steel strip can be automatically controlled by the controller.
Preferably, the color sensor is a color optical fiber sensor, so that the detection is more accurate and sensitive.
Preferably, the controller is a programmable controller, and the programmable controller can be programmed to change various parameters to automatically control the required length of the steel strip.
Preferably, the heating temperature of the steel strip is an annealing temperature, so that the color change treatment and the annealing treatment can be combined, the process can be simplified, and the cost can be saved.
According to the method, correspondingly, the device for determining the reference position of the steel strip comprises the steel strip, a conveying mechanism, a color sensor and a controller, wherein the color sensor is arranged on a steel strip conveying path and used for detecting the color of the steel strip, the color sensor transmits a signal to the controller, and the controller receives the signal, determines the color change position of the steel strip and uses the position as the reference point for measuring the length of the steel strip.
Preferably, the controller is a programmable controller, and the programmable controller can be programmed to change various parameters to automatically control the required length of the steel strip.
Preferably, a heating device of the steel belt is arranged in front of the color sensor, so that the heating device and the detection device are combined together, and the cost is lower.
Preferably, the heating device is a high-frequency annealing device, so that the color changing treatment and the annealing treatment can be combined, the flow is simplified, and the cost is saved.
Preferably, the color sensor is a color optical fiber sensor, so that the detection is more accurate and sensitive.
Compared with the prior art, the method utilizes the color difference between the heating section and the non-heating section formed when the steel strip is heated, adopts the color sensor to identify the color difference between the heating section and the non-heating section of the steel strip, thereby determining the color change position, and takes the position as the metering initial position, therefore, the lossless, correct and simple positioning can be realized. In particular, the determination of the initial position and the determination of the length of the steel strip can be conveniently and automatically carried out by the controller through the sensing signals of the color sensor.
Drawings
FIG. 1 is a view showing a state in which a steel strip according to an embodiment of the present invention is discolored after being heated.
FIG. 2 is a schematic structural diagram of an apparatus for determining a reference position of a steel strip according to an embodiment of the present invention.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and examples.
A method of determining a reference position of a steel strip, comprising:
1) as shown in fig. 1, heating a steel strip to a color-changing temperature at intervals to form a heating section 8 and a non-heating section 9 on the surface of the steel strip, wherein the color difference is obvious;
2) identifying the color difference naturally formed after the steel strip is heated by adopting a color optical fiber sensor, and determining the annealing position of the steel strip;
3) the annealing position is used as a steel strip length measuring reference point.
Accordingly, there is provided a steel strip reference position determining apparatus, as shown in fig. 2, which includes a steel strip 1, a transport mechanism 2, a color optical fiber sensor 4, and a controller (not shown), wherein the color optical fiber sensor 4 is disposed on a transport path of the steel strip 1 and detects a color of the steel strip, the color optical fiber sensor 4 transmits a signal to the controller, and the controller receives the signal and determines a steel strip color change position as a reference point for steel strip metering.
The color optical fiber sensor 4 is arranged on the fixed support, so that the axis of a signal source is perpendicular to the plane of the steel belt 1, firmness and reliability are guaranteed, the height of the adjusting lens reaches the most appropriate position, accurate signal output can be generated within a large range, and reliability is guaranteed.
The color optical fiber sensor 4 has a function of feeding back the signal change of the color difference object, sets upper and lower limit parameters through calibrating different color parts of the steel strip, and stores the numerical value after the completion.
When the device for determining the reference position of the steel strip is used, the conveying mechanism 2 conveys the steel strip 1 forwards, when the color optical fiber sensor 4 detects that the color of the steel strip 1 changes, the signal changes and is transmitted to the controller, the controller takes the change point as the reference point of the length measurement of the steel strip 1, and the length of the back part is set and controlled by the controller.
Specifically, when the automatic production line of the steel strip spring is started, as shown in fig. 2, two ends of a steel strip 1 with a set length L are respectively subjected to high-frequency induction annealing through a high-frequency annealing device 5, two ends of the steel strip after the high-frequency induction annealing form a two-section annealing band, the color of the two-section annealing band is different from that of the adjacent steel strip, then the steel strip after the high-frequency induction annealing is gradually conveyed forwards through the set length of a system, when the material annealing band passes through the position of a color optical fiber sensor 4, the detection device is involved to start detection, the color optical fiber sensor immediately outputs a feedback signal to a controller after detecting the color change of the steel strip, the controller takes the position of the steel strip when sending the signal as a new positioning reference point of the steel strip, steel strip control and equipment operation at the next stage are carried out according to a prefabricated program, and the subsequent processing of products ensures the consistency of important sizes of the products in each period through the device, realize nondestructive positioning detection, and ensure the product quality reliably.
Claims (9)
1. A method for determining a reference position of a steel strip, characterized by: it includes: 1) heating a section of the steel strip to a color-changing temperature, and forming a color difference between a heating section and a non-heating section on the surface of the steel strip after the steel strip is heated; 2) adopting a color sensor to identify different colors formed after the surface of the steel strip is heated, determining the color change position of the steel strip, and 3) taking the color change position as the length measuring reference point of the steel strip.
2. The method of determining a reference position of a steel strip according to claim 1, characterized in that: the determination of the color changing position of the steel strip is realized by a controller, and specifically comprises the following steps: and transmitting the signals detected by the color sensor to the controller, and receiving the signals and determining the color change position of the steel strip by the controller.
3. The method of determining a reference position of a steel strip according to claim 2, characterized in that: the controller is a programmable controller.
4. The method of determining a reference position of a steel strip according to claim 1, characterized in that: the heating color-changing temperature of the steel strip is the annealing temperature of the steel strip.
5. The method of determining a reference position of a steel strip according to claim 1, characterized in that: the color sensor is a color optical fiber sensor.
6. A steel strip reference position determining apparatus using the steel strip reference position determining method according to claim 1, characterized in that: the steel strip length measuring device comprises a steel strip, a conveying mechanism, a color sensor and a controller, wherein a heating device of the steel strip is arranged in front of the color sensor, the color sensor is arranged on a steel strip conveying path and detects different colors formed after the surface of the steel strip is heated, the color sensor transmits signals to the controller, and the controller receives the signals, determines the color change position of the steel strip and takes the position as a reference point of the steel strip length measurement.
7. The steel strip reference position determination apparatus according to claim 6, wherein: the controller is a programmable controller.
8. The steel strip reference position determination apparatus according to claim 6, wherein: the heating device is a high-frequency annealing device.
9. The steel strip reference position determination apparatus according to claim 6, wherein: the color sensor is a color optical fiber sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010103781.2A CN110926338B (en) | 2020-02-20 | 2020-02-20 | Method and device for determining reference position of steel strip |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010103781.2A CN110926338B (en) | 2020-02-20 | 2020-02-20 | Method and device for determining reference position of steel strip |
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| CN110926338A CN110926338A (en) | 2020-03-27 |
| CN110926338B true CN110926338B (en) | 2022-02-18 |
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| CN202010103781.2A Active CN110926338B (en) | 2020-02-20 | 2020-02-20 | Method and device for determining reference position of steel strip |
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| CN113768258A (en) * | 2021-09-27 | 2021-12-10 | 歌尔科技有限公司 | Wearable device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW420718B (en) * | 1995-12-26 | 2001-02-01 | Nippon Steel Corp | Primary cooling method in continuously annealing steel strip |
| CN102519382A (en) * | 2011-12-22 | 2012-06-27 | 山东泰山钢铁集团有限公司 | Fixed point marking method for deformation detection of cold-rolled steel strip |
| JP6023563B2 (en) * | 2012-11-19 | 2016-11-09 | アイシン精機株式会社 | Roll forming method and roll forming apparatus |
| CN103105133A (en) * | 2012-12-21 | 2013-05-15 | 中国科学院长春光学精密机械与物理研究所 | Steel belt grating ruler integration processing device with laser-marking |
| CN204288248U (en) * | 2014-09-28 | 2015-04-22 | 广西南宁推特信息技术有限公司 | A kind of robotic positioning device based on colour code positioning electronic tag |
| CN109945810B (en) * | 2019-04-04 | 2021-01-15 | 深圳市英威腾电气股份有限公司 | Method and controller for improving color code detection precision |
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