CN107705956B - Iron-cobalt alloy strip cutting magnetization device and method based on guided wave detection - Google Patents
Iron-cobalt alloy strip cutting magnetization device and method based on guided wave detection Download PDFInfo
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- CN107705956B CN107705956B CN201711156821.4A CN201711156821A CN107705956B CN 107705956 B CN107705956 B CN 107705956B CN 201711156821 A CN201711156821 A CN 201711156821A CN 107705956 B CN107705956 B CN 107705956B
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- 238000005520 cutting process Methods 0.000 title claims abstract description 141
- 230000005415 magnetization Effects 0.000 title claims abstract description 54
- 238000001514 detection method Methods 0.000 title claims abstract description 44
- 238000000034 method Methods 0.000 title claims abstract description 20
- 229910000531 Co alloy Inorganic materials 0.000 title claims abstract description 18
- QVYYOKWPCQYKEY-UHFFFAOYSA-N [Fe].[Co] Chemical compound [Fe].[Co] QVYYOKWPCQYKEY-UHFFFAOYSA-N 0.000 title claims abstract description 18
- 230000007246 mechanism Effects 0.000 claims abstract description 37
- RIVZIMVWRDTIOQ-UHFFFAOYSA-N cobalt iron Chemical compound [Fe].[Co].[Co].[Co] RIVZIMVWRDTIOQ-UHFFFAOYSA-N 0.000 claims abstract description 13
- 238000006073 displacement reaction Methods 0.000 claims description 23
- 230000009471 action Effects 0.000 claims description 10
- 230000008569 process Effects 0.000 claims description 6
- 230000001681 protective effect Effects 0.000 claims description 2
- 238000004804 winding Methods 0.000 claims description 2
- 238000009966 trimming Methods 0.000 claims 3
- 230000001419 dependent effect Effects 0.000 abstract description 2
- 230000006872 improvement Effects 0.000 description 8
- 229910045601 alloy Inorganic materials 0.000 description 3
- 239000000956 alloy Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 238000009987 spinning Methods 0.000 description 2
- 229910000851 Alloy steel Inorganic materials 0.000 description 1
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- 229910017061 Fe Co Inorganic materials 0.000 description 1
- 239000002390 adhesive tape Substances 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005294 ferromagnetic effect Effects 0.000 description 1
- 239000003302 ferromagnetic material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000001902 propagating effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 229910000859 α-Fe Inorganic materials 0.000 description 1
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F13/00—Apparatus or processes for magnetising or demagnetising
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
- H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
- H01F41/0206—Manufacturing of magnetic cores by mechanical means
- H01F41/0213—Manufacturing of magnetic circuits made from strip(s) or ribbon(s)
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Abstract
The invention provides a ferrocobalt strip cutting magnetization device based on guided wave detection, which comprises a transverse cutting mechanism, a conveying mechanism, a longitudinal cutting mechanism, a magnetization system, a driving system and a strip frame, wherein the transverse cutting mechanism comprises a transverse cutting knife with a telescopic mechanism, the conveying mechanism comprises a driving wheel and a driven wheel which are connected through a conveying belt, the longitudinal cutting mechanism comprises a longitudinal cutting knife, the magnetization system comprises an electromagnet, the driving system comprises a first driving wheel and a second driving wheel, and the strip frame, the transverse cutting knife, the first driving wheel, the electromagnet, the second driving wheel, the longitudinal cutting knife and the driven wheel are sequentially arranged from left to right. The invention also provides a method for cutting and magnetizing the iron-cobalt alloy strip based on guided wave detection, which comprises the following steps: firstly, cutting the strip by using a transverse cutting knife and a longitudinal cutting knife, and magnetizing by using an electromagnet; the cutting and magnetization of the strip are not dependent on the proficiency of staff, so that the detection efficiency is improved.
Description
Technical Field
The invention relates to the field of guided wave detection, in particular to an iron-cobalt alloy strip cutting magnetization device and method based on guided wave detection.
Background
The detection of pipeline defects is an important aspect of industrial pipeline safety, but the traditional detection method needs to strip the anti-corrosion layer outside the pipeline, large-scale excavation is also needed for buried pipelines, and the detection coverage is low, the efficiency is low, and the time and the labor are wasted. In recent years, msS ultrasonic guided wave detection technology has been developed, and ultrasonic guided waves propagating in solids are reduced in attenuation along a propagation path, so that the method has the advantages of long-distance detection, high sensitivity, simplicity in operation, cost reduction, coverage of a detection area by 100%, and the like. The MsS principle is magnetostriction effect, so that the method can only be applied to ferrous materials such as carbon steel, alloy steel, ferrite stainless steel (300 series) and the like, is greatly limited, is continuously perfected, and is used for cutting and magnetizing a ferrocobalt alloy strip, then adhering the ferrocobalt alloy strip to the surface of a non-ferrous material pipeline, and coupling guided waves into the non-ferromagnetic material and spreading the guided waves to finish detection.
At present, the cutting of the iron-cobalt alloy strip is mainly completed by a detector through scissors, the length of the strip is determined by the diameter of a pipeline to be detected, and the width of the strip is required to be smaller than or equal to one quarter of the corresponding wavelength of the guided wave detection frequency (16 KHz, 32KHz, 64KHz and 128 KHz). For magnetization of the strip, at present, the magnetization of the strip is mainly finished manually by a detector through a permanent magnet, and the permanent magnet is required to move at a constant speed (20-40 cm/sec) so as to ensure the uniformity of the magnetization of the strip. The cutting and magnetizing effects of the strip directly affect the accuracy of the detection result, which has high requirements on the proficiency and experience of the detection personnel.
Accordingly, improvements in the art are needed.
Disclosure of Invention
The invention aims to provide an efficient iron-cobalt alloy strip cutting magnetization device and method based on guided wave detection.
In order to solve the technical problems, the invention provides an iron-cobalt alloy strip cutting magnetization device based on guided wave detection, which comprises a transverse cutting mechanism, a conveying mechanism, a longitudinal cutting mechanism, a magnetization system, a driving system and a strip frame;
the transverse cutting mechanism comprises a transverse cutting knife with a telescopic mechanism; the knife edge of the transverse cutting knife is vertically downward;
the conveying mechanism comprises a driving wheel and a driven wheel which are connected through a conveying belt;
the longitudinal cutting mechanism comprises a longitudinal cutting knife; the longitudinal cutting knife is positioned right above the conveyor belt and is attached to the conveyor belt, and the knife edge of the longitudinal cutting knife faces the moving direction of the conveyor belt;
the magnetization system comprises an electromagnet; the electromagnet is positioned right above the conveyor belt;
the drive system includes a first drive wheel and a second drive wheel; the first driving wheel is positioned right above the driving wheel, and a gap is arranged between the first driving wheel and the conveyor belt; the second driving wheel is positioned right above the conveyor belt and between the driving wheel and the driven wheel, and a gap is arranged between the second driving wheel and the conveyor belt;
the strip frame, the transverse cutting knife, the first driving wheel, the electromagnet, the second driving wheel, the longitudinal cutting knife and the driven wheel are sequentially arranged from left to right; the telescopic mechanism of the transverse cutting knife is at the shortest time, and the height of the transverse cutting knife is larger than that of the strip frame.
As an improvement on the iron-cobalt alloy strip cutting magnetization device based on guided wave detection: a sensor system is also included; the sensor system comprises a speed sensor and a displacement sensor; the speed sensor is arranged on the driving wheel, and the displacement sensor is arranged on the first driving wheel.
As a further improvement to the ferrocobalt strip tailoring magnetization device based on guided wave detection of the invention: the device also comprises a base bracket; the base support is provided with a cutter body support, a fixing frame, a conveying support, a driving support and a magnetizing support; the transverse cutting knife is arranged on the knife body bracket; the longitudinal cutting knife is arranged on the fixing frame; the driving wheel and the driven wheel are arranged on the conveying bracket; the electromagnet is arranged on the magnetizing bracket; the first driving wheel and the second driving wheel are both arranged on the driving bracket.
As a further improvement to the ferrocobalt strip tailoring magnetization device based on guided wave detection of the invention: the magnetizing system further comprises an outer box; the outer box is arranged at the top of the magnetizing bracket, and the electromagnet is arranged in the outer box.
As a further improvement to the ferrocobalt strip tailoring magnetization device based on guided wave detection of the invention: the conveying mechanism further comprises a housing with an upper opening; the conveyor belt is positioned in the housing interior cavity.
As a further improvement to the ferrocobalt strip tailoring magnetization device based on guided wave detection of the invention: the transverse cutting mechanism also comprises a knife edge protection sheath matched with the transverse cutting knife; the knife edge protection sheath is arranged on the base bracket and is positioned right below the transverse cutting knife.
As a further improvement to the ferrocobalt strip tailoring magnetization device based on guided wave detection of the invention: the top of the fixing frame is provided with sliding rods with scales in parallel, and the longitudinal cutting knife is movably arranged on the sliding rods.
As a further improvement to the ferrocobalt strip tailoring magnetization device based on guided wave detection of the invention: the controller is also provided with a display screen; the controller is respectively connected with the transverse cutting knife, the driving wheel, the driven wheel, the electromagnet, the first driving wheel and the second driving wheel in a signal way.
The invention also provides a method for cutting and magnetizing the iron-cobalt alloy strip based on guided wave detection, which comprises the following steps:
1) A detector moves the transverse cutting knife to the top of the knife body bracket through the controller;
2) Manually winding and fixing the strip on the strip frame by a detector, pulling out the free end of the strip, passing through the gap between the transverse cutting knife and the knife edge protective sheath, and then placing the strip at the gap between the first driving wheel and the conveyor belt;
3) Inputting diameter reference data of the pipeline to be tested into the controller;
4) According to the actual requirement, the frequency of the guided wave is selected, and a detector manually adjusts the position of the longitudinal cutting knife on the slide bar according to the selected frequency of the guided wave;
5) The method comprises the steps that a first driving wheel, a second driving wheel, a driving wheel and a driven wheel are started through a controller, the first driving wheel and the second driving wheel rotate anticlockwise, the driving wheel and the driven wheel rotate clockwise, a conveyor belt moves clockwise under the combined action of the driving wheel and the driven wheel, the free end of a strip moves along with the conveyor belt under the combined action of the first driving wheel and the conveyor belt, displacement information of the strip detected by a displacement sensor is converted into a displacement signal and is sent to the controller, the displacement signal is displayed on a display screen of the controller, the controller controls a transverse cutting knife according to the displacement signal of the strip and diameter reference data of a pipeline to be detected, and the transverse cutting knife moves downwards to cut the strip to a specified length;
6) The strip cut by the transverse cutting knife continuously moves along the conveyor belt under the action of the first driving wheel and the conveyor belt, after the strip completely passes through the gap between the first driving wheel and the conveyor belt, only the conveyor belt drives the strip to move, then the strip cut by the transverse cutting knife passes through the gap between the second driving wheel and the conveyor belt, the second driving wheel and the conveyor belt jointly enable the strip cut by the transverse cutting knife to move along the conveyor belt, then the strip cut by the transverse cutting knife passes through the longitudinal cutting knife, the strip cut by the transverse cutting knife is cut into a specified width by the longitudinal cutting knife, and the strip cutting process is finished; stopping the first driving wheel, the second driving wheel, the driving wheel and the driven wheel through the controller;
7) Removing the residual strips fixed on the strip frame to avoid polluting the surfaces of the residual strips;
8) Moving the transverse cutting knife into the knife edge protecting sheath through the controller;
9) Manually adjusting the longitudinal cutting knife back to the position of 0mm by a detector;
10 Inputting the magnetizing turns and the magnetizing speed to the controller;
11 Opening an electromagnet through a controller, and electrifying the electromagnet; the controller controls the first driving wheel and the second driving wheel to rotate anticlockwise, the driving wheel and the driven wheel to rotate clockwise and rotate at the same speed according to the magnetization speed, and the driving wheel and the driven wheel drive the conveyor belt to rotate; one end of the cut strip is placed at the gap between the first driving wheel and the conveyor belt, the first driving wheel, the second driving wheel and the conveyor belt drive the strip to move along with the conveyor belt from left to right, the strip is magnetized when passing through the lower part of the electromagnet, then the strip passes through the gap between the second driving wheel and the conveyor belt along with the conveyor belt, the strip is taken off from the conveyor belt, one end of the strip is placed at the gap between the first driving wheel and the conveyor belt again, magnetization is carried out again, and the number of times of strip magnetization is determined according to the number of magnetization turns;
12 After magnetization is finished, the electromagnet, the first driving wheel, the second driving wheel, the control driving wheel and the driven wheel are closed by the controller, and the magnetization process is finished;
13 Removing the cut magnetized strip from the conveyor belt.
The iron-cobalt alloy strip cutting magnetization device and method based on guided wave detection have the technical advantages that:
the iron-cobalt alloy strip cutting and magnetizing device and method based on guided wave detection can cut the iron-cobalt alloy strip into the required length and width, uniformly magnetize the cut iron-cobalt alloy strip, and improve the detection accuracy; the cutting and magnetization of the strip are not dependent on the proficiency of staff, so that the detection efficiency is improved; when detection is needed, cutting and magnetizing are performed, so that time and strip materials are saved, and the economy is improved; the device is light and portable; the device has simple structure and low cost.
Drawings
The following describes the embodiments of the present invention in further detail with reference to the accompanying drawings.
FIG. 1 is a schematic diagram of a device for cutting and magnetizing a strip of Fe-Co alloy based on guided wave detection.
Detailed Description
The invention will be further described with reference to specific examples, but the scope of the invention is not limited thereto.
Example 1, a device for cutting and magnetizing a ferrocobalt strip based on guided wave detection, as shown in fig. 1, comprises a base bracket 1, a transverse cutting mechanism, a conveying mechanism, a longitudinal cutting mechanism, a magnetizing device, a driving system, a sensor system and a controller 21 with a display screen;
the base bracket 1 is provided with a blade bracket 3, a fixing bracket 15, a conveying bracket 20, a driving bracket 8 and a magnetizing bracket 12.
The transverse cutting mechanism comprises a transverse cutting knife 5 with a telescopic mechanism and a knife edge protection sheath 4 matched with the transverse cutting knife 5. The transverse cutting knife 5 is arranged at the top of the knife body support 3, the knife body support 3 is fixedly arranged at the top of the base support 1, the transverse cutting knife 5 is fixedly arranged at the top of the knife body support 3, the knife edge of the transverse cutting knife 5 faces downwards vertically, the knife edge protection sheath 4 is fixedly arranged at the top of the base support 1 and is positioned under the transverse cutting knife 5, and the telescopic mechanism of the transverse cutting knife 5 can drive the transverse cutting knife 5 to move up and down for cutting strips. The transverse cutting knife 5 is positioned in the knife edge protection sheath 4 when not in operation; when the strip (i.e. the iron-cobalt alloy strip) needs to be cut, the transverse cutting knife 5 is positioned at the top of the knife body bracket 3 at the beginning, the strip passes through the space between the transverse cutting knife 5 and the knife edge protection sheath 4, and then the transverse cutting knife 5 is controlled to move downwards to cut the strip to the required length.
The longitudinal cutting mechanism comprises a longitudinal cutting knife 14, the longitudinal cutting knife 14 is arranged on the top of a fixed frame 15 (the top of the fixed frame 15 is provided with a sliding rod with scales in parallel and positioned right above a conveyor belt 18, and the longitudinal cutting knife 14 is movably arranged on the sliding rod); the longitudinal cutter 14 is located right above the conveyor belt 18 and is attached to the conveyor belt 18, the cutter body of the longitudinal cutter 14 is vertically arranged, the cutter edge of the longitudinal cutter 14 is right against the movement direction of the conveyor belt 18 (when a longitudinal cutting strip is required, the longitudinal cutter 14 is locked from one side of a slide rod crossing the conveyor belt 18 to a certain scale, the cutter edge of the longitudinal cutter 14 is aligned with the movement direction of the strip), the longitudinal cutter 14 can horizontally move on the slide rod of the fixing frame 15, and the movement direction of the longitudinal cutter 14 is perpendicular to the movement direction of the conveyor belt 18. The longitudinal cutter 14 is initially positioned at a scale of 0mm, and the longitudinal cutter 14 is positioned at one side edge of the conveyor belt 18 at 0mm, with a scale accuracy of 1mm, and the width of the strip to be cut can be changed by adjusting the position of the longitudinal cutter 14.
The conveying mechanism comprises a driving wheel 17, a driven wheel 16, a conveying belt 18 and an outer cover 19 with an opening at the upper side, wherein the driving wheel 17 and the driven wheel 16 are arranged at the top of a conveying bracket 20, the driving wheel 17 and the driven wheel 16 are provided with motors and are matched with each other, the driving wheel 17, the driven wheel 16 and the outer cover 19 are fixed on the base bracket 1 through the conveying bracket 20, the driving wheel 17 and the driven wheel 16 are arranged on the inner side of the conveying belt 18 and are connected through the conveying belt 18, the driving wheel 17 and the driven wheel 16 can drive the conveying belt 18 to move, and the driving wheel 17 and the driven wheel 16 rotate clockwise. The conveyor belt 18 is located in the inner cavity of the outer cover 19, the gap between the outer cover 19 and the conveyor belt 18 is 6mm, the outer cover 19 does not prevent magnetization and cutting (namely, the two side parts of the outer cover 19 are symmetrical semi-hollow cylinders, the middle part of the outer cover 19 is a hollow cuboid with openings at the upper part and the two sides, and the two semi-hollow cylinders and the hollow cuboid are mutually communicated). The cover 19 does not take part in the movement and the cover 19 prevents the strip from falling down during movement with the conveyor belt 18, the strip only moving on the upper surface of the conveyor belt 18 and not entering the gap between the conveyor belt 18 and the cover 19.
The drive system comprises a first drive wheel 6 and a second drive wheel 13, both the first drive wheel 6 and the second drive wheel 13 being arranged on top of the drive support 8. The first driving wheel 6 is positioned right above the driving wheel 17, a gap is arranged between the first driving wheel 6 and the conveyor belt 18, and the thickness of the strip is the same as the height of the gap (the distance between the first driving wheel 6 and the conveyor belt 18); the second driving wheel 13 is located directly above the conveyor belt 18 and between the driving wheel 17 and the driven wheel 16, and a gap (the same size as the gap between the first driving wheel 6 and the conveyor belt 18) is provided between the second driving wheel 13 and the conveyor belt 18. The first driving wheel 6 and the second driving wheel 13 rotate counterclockwise. The outermost linear speeds of the driving wheel 17, the driven wheel 16, the first driving wheel 6 and the second driving wheel 13 are equal, the strip moves upwards on the conveyor belt 18 under the action of the conveying mechanism and the driving system, and the speed of the conveyor belt 18 is equal to the outermost linear speed of the driving wheel 17.
The magnetizing system comprises an electromagnet 10 and an outer box 11, wherein the electromagnet 10 is connected with an external power supply, the outer box 11 is fixedly arranged at the top of a magnetizing bracket 12, and the electromagnet 10 is arranged in the outer box 11. When the strip is magnetized after cutting, the switch on the controller 21 controls the electromagnet 10 to be electrified to magnetize the ferromagnetic strip.
The sensor system comprises a speed sensor 9 and a displacement sensor 7, wherein the speed sensor 9 is arranged on a driving wheel 17, and the displacement sensor 7 is arranged on a first driving wheel 6; the speed sensor 9 can detect the real-time speed of the conveyor belt 18 (detect the outermost linear speed of the driving wheel 17), and the displacement sensor 7 can detect the length of the strip (detect the length from the time when the strip comes into contact with the first driving wheel 6 and the outermost linear speed of the first driving wheel 6).
The base bracket 1 is fixedly provided with a strip frame 2, the strip frame 2 is used for fixing strips, the strips are generally stored as common adhesive tape rolls, the strips need to be discharged from the rolls when in use, the strip frame 2 is similar to a shaft penetrating through a spinning coil when spinning, and the top of the strip frame 2 is the same as the top of the conveyor belt 18. When the strip needs to be cut, the strip is fixed on the strip frame 2, and after the strip is cut, the rest strip fixed on the strip frame 2 can be taken down, so that the surface of the strip is prevented from being polluted.
The controller 21 is respectively connected with the transverse cutter 5 (the telescopic mechanism of the transverse cutter 5), the driving wheel 17, the driven wheel 16, the electromagnet 10, the first driving wheel 6 and the second driving wheel 13 in a signal manner. The controller 21 can receive, demodulate and process the signals transmitted from the speed sensor 9 and the displacement sensor 7, and control the lifting of the transverse cutter 5, the transmission speed of the conveyor belt 18, the operation of the first driving wheel 6 and the second driving wheel 13, and the opening and closing of the electromagnet 10.
The controller 21 is a servo drive controller of model S110 manufactured by siemens corporation of germany.
The strip frame 2, the transverse cutting blade 5, the first driving wheel 6 (driving wheel 17), the electromagnet 10, the second driving wheel 13, the longitudinal cutting blade 14 and the driven wheel 16 are arranged in sequence from left to right.
The application process of the invention is as follows:
1. the detector moves the transverse cutting knife 5 to the top of the knife body bracket 3 through the controller 21;
2. the detection personnel manually winds and fixes the strip on the strip frame 2, pulls out the free end of the strip (one end outside the strip), passes through the space between the transverse cutting knife 5 and the knife edge protection sheath 4, and then is placed at the gap between the first driving wheel 6 and the conveyor belt 18;
3. inputting diameter reference data of the pipeline to be tested (the strip is wrapped around the outer surface of the pipeline, and the length of the strip is determined according to the diameter of the pipeline) into the controller 21;
4. according to the actual requirement, the frequency of the guided wave (32 KHz, 64KHz or 128 KHz) is selected, the width of the cut strip is smaller than or equal to one quarter of the wavelength corresponding to the detection frequency of the guided wave, and the detection personnel manually adjusts the position of the longitudinal cutter 14 on the slide bar crossing the conveyor belt 18 according to the selected frequency of the guided wave;
5. the controller 21 starts the first driving wheel 6, the second driving wheel 13, the driving wheel 17 and the driven wheel 16, the first driving wheel 6 and the second driving wheel 13 rotate anticlockwise, the driving wheel 17 and the driven wheel 16 rotate clockwise, the conveyor belt 18 moves clockwise under the combined action of the driving wheel 17 and the driven wheel 16, the free end of the strip moves along with the conveyor belt 18 under the combined action of the first driving wheel 6 and the conveyor belt 18 (the first driving wheel 6 contacts with the upper surface of the strip), the displacement information of the strip detected by the displacement sensor 7 is converted into a displacement signal (namely, the length of the strip passing through a gap between the conveyor belt 18 and the driving wheel 17) and is sent to the controller 21 and displayed on a display screen of the controller 21, the controller 21 controls the transverse cutting knife 5 according to the displacement signal of the strip and the diameter reference data of the pipe to be detected, and the transverse cutting knife 5 moves downwards to cut the strip to a specified length; i.e. when the displacement signal (representing the actual length of the strip) is greater than the diameter reference data (representing the required strip length) of the pipeline to be measured, the controller 21 controls the transverse cutter 5 to move downwards;
6. the strip cut by the transverse cutting blade 5 continues to move along the conveyor belt 18 under the action of the first driving wheel 6 and the conveyor belt 18, after the strip completely passes through the gap between the first driving wheel 6 and the conveyor belt 18, only the conveyor belt 18 drives the strip to move, then the strip cut by the transverse cutting blade 5 passes through the gap between the second driving wheel 13 and the conveyor belt 18, the second driving wheel 13 and the conveyor belt 18 jointly move the strip cut by the transverse cutting blade 5 along the conveyor belt 18, then the strip cut by the transverse cutting blade 5 passes through the longitudinal cutting blade 14, the strip cut by the transverse cutting blade 5 is cut into a specified width (the strip is cut into two parts by the longitudinal cutting blade 14 and the unnecessary part is removed from the conveyor belt 18), and the strip cutting process is ended; stopping the first driving wheel 6, the second driving wheel 13, the driving wheel 17 and the driven wheel 16 by the controller 21;
7. removing the residual strips fixed on the strip frame 2 to avoid polluting the surfaces of the residual strips;
8. the controller 21 moves the transverse cutting knife 5 into the knife edge protecting sheath 4 to protect the sharpness of the knife edge of the transverse cutting knife 5 and the operation safety of personnel;
9. the inspector manually adjusts the longitudinal cutting blade 14 back to 0mm for the magnetizing process;
10. the number of magnetization turns and the magnetization speed are input to the controller 21, wherein the number of magnetization turns is the number of times the strip needs to be magnetized, the magnetization speed is the running speed of the conveyor belt 18 (the running speed of the conveyor belt 18 is determined by the rotating speeds of the driving wheel 17 and the driven wheel 16), the real-time speed information of the conveyor belt 18 is detected by the speed sensor 9 and sent to the controller 21, and is displayed on a display screen of the controller 21, the speed of the conveyor belt 18 (the speed of the conveyor belt 18 is equal to the magnetization speed) is regulated by the controller 21 through regulating the rotating speeds of the driving wheel 17 and the driven wheel 16 according to the requirement of the magnetization speed (the speed of the conveyor belt 18 is equal to the magnetization speed), so that the speed of the conveyor belt 18 is kept stable (kept within a certain value within 20 cm/s to 40 cm/s), and magnetization uniformity is ensured;
11. the electromagnet 10 is started by the controller 21, and the electromagnet 10 is electrified; the controller 21 controls the rotation speeds of the first driving wheel 6 and the second driving wheel 13 rotating anticlockwise and the driving wheel 17 and the driven wheel 16 rotating clockwise according to the magnetization speed, and the driving wheel 17 and the driven wheel 16 drive the conveyor belt 18 to rotate; the inspector manually places one end of the cut strip at the gap between the first driving wheel 6 and the conveyor belt 18, the first driving wheel 6, the second driving wheel 13 and the conveyor belt 18 together drive the strip to move along with the conveyor belt 18 from left to right, the strip is magnetized when passing under the electromagnet 10, then the strip passes through the gap between the second driving wheel 13 and the conveyor belt 18 along with the conveyor belt 18, the strip is taken off from the conveyor belt 18 (counted as one-time magnetization, the strip only runs on the upper surface of the conveyor belt 18), and one end of the strip is placed at the gap between the first driving wheel 6 and the conveyor belt 18 again for magnetization, wherein the number of magnetization turns is the number of magnetization times of the strip;
12. after the magnetization is finished, the electromagnet 10, the first driving wheel 6, the second driving wheel 13, the control driving wheel 17 and the driven wheel 16 are turned off through the controller 21, and the magnetization process is finished;
13. the cut magnetized strip is removed from the conveyor 18.
Finally, it should also be noted that the above list is merely a few specific embodiments of the present invention. Obviously, the invention is not limited to the above embodiments, but many variations are possible. All modifications directly derived or suggested to one skilled in the art from the present disclosure should be considered as being within the scope of the present invention.
Claims (7)
1. Iron-cobalt alloy strip tailors magnetization unit based on guided wave detects, its characterized in that: comprises a transverse cutting mechanism, a conveying mechanism, a longitudinal cutting mechanism, a magnetizing system, a driving system, a strip frame (2) and a base bracket (1);
the transverse cutting mechanism comprises a transverse cutting knife (5) with a telescopic mechanism; the knife edge of the transverse cutting knife (5) is vertically downward;
the conveying mechanism comprises a driving wheel (17) and a driven wheel (16) which are connected through a conveying belt (18);
the longitudinal clipping mechanism comprises a longitudinal clipping knife (14); the longitudinal cutting knife (14) is positioned right above the conveyor belt (18) and is attached to the conveyor belt (18), and the knife edge of the longitudinal cutting knife (14) faces the movement direction of the conveyor belt (18);
the magnetizing system comprises an electromagnet (10); the electromagnet (10) is positioned right above the conveyor belt (18);
the drive system comprises a first drive wheel (6) and a second drive wheel (13); the first driving wheel (6) is positioned right above the driving wheel (17), and a gap is arranged between the first driving wheel (6) and the conveyor belt (18); the second driving wheel (13) is positioned right above the conveyor belt (18) and between the driving wheel (17) and the driven wheel (16), and a gap is arranged between the second driving wheel (13) and the conveyor belt (18);
the strip frame (2), the transverse cutting knife (5), the first driving wheel (6), the electromagnet (10), the second driving wheel (13), the longitudinal cutting knife (14) and the driven wheel (16) are sequentially arranged from left to right; the telescopic mechanism of the transverse cutting knife (5) is shortest, and the height of the transverse cutting knife (5) is larger than that of the strip frame (2);
the base bracket (1) is provided with a cutter body bracket (3), a fixing bracket (15), a conveying bracket (20), a driving bracket (8) and a magnetizing bracket (12); the transverse cutting knife (5) is arranged on the knife body bracket (3); the longitudinal cutting knife (14) is arranged on the fixing frame (15); the driving wheel (17) and the driven wheel (16) are arranged on the conveying bracket (20); the electromagnet (10) is arranged on the magnetizing bracket (12); the first driving wheel (6) and the second driving wheel (13) are arranged on the driving bracket (8);
the transverse cutting mechanism also comprises a knife edge protection sheath (4) matched with the transverse cutting knife (5); the knife edge protection sheath (4) is arranged on the base bracket (1) and is positioned right below the transverse cutting knife (5).
2. The ferrocobalt strip trimming and magnetizing device based on guided wave detection according to claim 1, wherein: a sensor system is also included; the sensor system comprises a speed sensor (9) and a displacement sensor (7); the speed sensor (9) is arranged on the driving wheel (17), and the displacement sensor (7) is arranged on the first driving wheel (6).
3. The ferrocobalt strip trimming and magnetizing device based on guided wave detection according to claim 2, wherein: the magnetizing system further comprises an outer box (11); the outer box (11) is arranged at the top of the magnetizing bracket (12), and the electromagnet (10) is arranged in the outer box (11).
4. The ferrocobalt strip trimming and magnetizing device based on guided wave detection according to claim 3, wherein: the transfer mechanism further comprises an upper open housing (19); the conveyor belt (18) is positioned in the inner cavity of the outer cover (19).
5. The device for cutting and magnetizing an iron-cobalt alloy strip based on guided wave detection according to claim 4, wherein: the top of the fixing frame (15) is provided with sliding bars with scales in parallel, and the longitudinal cutting knife (14) is movably arranged on the sliding bars, wherein the sliding bars are positioned right above the conveying belt (18).
6. The device for cutting and magnetizing an iron-cobalt alloy strip based on guided wave detection according to claim 5, wherein: also comprises a controller (21) with a display screen; the controller (21) is respectively connected with the transverse cutting knife (5), the driving wheel (17), the driven wheel (16), the electromagnet (10), the first driving wheel (6) and the second driving wheel (13) in a signal mode.
7. A method for cutting out magnetization of a strip of iron-cobalt alloy based on guided wave detection using the magnetization device according to any one of claims 1 to 6, comprising the steps of:
1) A detector moves the transverse cutting knife (5) to the top of the knife body bracket (3) through the controller (21);
2) Manually winding and fixing the strip on the strip frame (2) by a detector, pulling out the free end of the strip, passing through the space between the transverse cutting knife (5) and the knife edge protective sheath (4), and then placing the strip at the gap between the first driving wheel (6) and the conveyor belt (18);
3) Inputting pipeline diameter reference data to be measured into a controller (21);
4) According to the actual requirement, the frequency of the guided wave is selected, and a detector manually adjusts the position of the longitudinal cutting knife (14) on the slide bar according to the selected frequency of the guided wave;
5) The method comprises the steps that a first driving wheel (6), a second driving wheel (13), a driving wheel (17) and a driven wheel (16) are started through a controller (21), the first driving wheel (6) and the second driving wheel (13) rotate anticlockwise, the driving wheel (17) and the driven wheel (16) rotate clockwise, a conveyor belt (18) moves clockwise under the combined action of the driving wheel (17) and the driven wheel (16), the free end of a strip moves along with the conveyor belt (18) under the combined action of the first driving wheel (6) and the conveyor belt (18), displacement information of a detection strip of a displacement sensor (7) is converted into a displacement signal to be sent to the controller (21), the displacement signal is displayed on a display screen of the controller (21), the controller (21) controls a transverse cutting knife (5) according to the displacement signal of the strip and diameter reference data of a pipeline to be detected, and the transverse cutting knife (5) moves downwards to cut the strip to a specified length;
6) The strips cut by the transverse cutting knife (5) continue to move along the conveyor belt (18) under the action of the first driving wheel (6) and the conveyor belt (18), after the strips completely pass through the gap between the first driving wheel (6) and the conveyor belt (18), only the conveyor belt (18) drives the strips to move, then the strips cut by the transverse cutting knife (5) pass through the gap between the second driving wheel (13) and the conveyor belt (18), the strips cut by the transverse cutting knife (5) move along the conveyor belt (18) together by the second driving wheel (13) and the conveyor belt (18), then the strips cut by the transverse cutting knife (5) pass through the longitudinal cutting knife (14), the strips cut by the transverse cutting knife (5) are cut into specified widths by the longitudinal cutting knife (14), and the strip cutting process is finished; stopping the first driving wheel (6), the second driving wheel (13), the driving wheel (17) and the driven wheel (16) through the controller (21);
7) Removing the residual strips fixed on the strip frame (2) to avoid polluting the surfaces of the residual strips;
8) Moving the transverse cutting knife (5) into the knife edge protection sheath (4) through the controller (21);
9) Manually adjusting the longitudinal cutting knife (14) back to the position of 0mm by a detector;
10 Inputting the number of magnetizing turns and the magnetizing speed to a controller (21);
11 The electromagnet (10) is started through the controller (21), and the electromagnet (10) is electrified; the controller (21) controls the anticlockwise rotation of the first driving wheel (6) and the second driving wheel (13) and the clockwise rotation speed of the driving wheel (17) and the driven wheel (16) according to the magnetization speed, and the driving wheel (17) and the driven wheel (16) drive the conveyor belt (18) to rotate; the method comprises the steps that a detector manually places one end of a cut strip at a gap between a first driving wheel (6) and a conveyor belt (18), the first driving wheel (6), a second driving wheel (13) and the conveyor belt (18) drive the strip to move along with the conveyor belt (18) from left to right, the strip is magnetized when passing under an electromagnet (10), then the strip passes through the gap between the second driving wheel (13) and the conveyor belt (18) along with the conveyor belt (18), the strip is taken off from the conveyor belt (18), one end of the strip is placed at the gap between the first driving wheel (6) and the conveyor belt (18) again, magnetization is carried out again, and the number of times of strip magnetization is determined according to the magnetization turns;
12 After magnetization is finished, the electromagnet (10), the first driving wheel (6), the second driving wheel (13), the control driving wheel (17) and the driven wheel (16) are closed through the controller (21), and the magnetization process is finished;
13 Removing the cut and magnetized strip from the conveyor belt (18).
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2131183Y (en) * | 1992-08-31 | 1993-04-28 | 上海上科实验研究所 | Cutting machine for cutting many curved silicon-steel strips for making circular section core transformer |
| CN206541737U (en) * | 2017-03-16 | 2017-10-03 | 东莞市广磁电子有限公司 | A kind of ring inductance processing unit (plant) |
| CN207397839U (en) * | 2017-11-20 | 2018-05-22 | 杭州市特种设备检测研究院 | Ferrocobalt band based on Guided waves cuts out magnetizing assembly |
-
2017
- 2017-11-20 CN CN201711156821.4A patent/CN107705956B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2131183Y (en) * | 1992-08-31 | 1993-04-28 | 上海上科实验研究所 | Cutting machine for cutting many curved silicon-steel strips for making circular section core transformer |
| CN206541737U (en) * | 2017-03-16 | 2017-10-03 | 东莞市广磁电子有限公司 | A kind of ring inductance processing unit (plant) |
| CN207397839U (en) * | 2017-11-20 | 2018-05-22 | 杭州市特种设备检测研究院 | Ferrocobalt band based on Guided waves cuts out magnetizing assembly |
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