CN101537445A - Device and method for coiled material centering and diameter measuring - Google Patents
Device and method for coiled material centering and diameter measuring Download PDFInfo
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- CN101537445A CN101537445A CN200810200656A CN200810200656A CN101537445A CN 101537445 A CN101537445 A CN 101537445A CN 200810200656 A CN200810200656 A CN 200810200656A CN 200810200656 A CN200810200656 A CN 200810200656A CN 101537445 A CN101537445 A CN 101537445A
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- photoelectric sensor
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- strip
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Abstract
The invention relates to the filed of coiled profile supplied to a machine and diameter measurement, in particular to a device and a method for coiled material centering and diameter measuring. The device comprises a dolly, a hydraulic cylinder, a mandril and a bracket. The hydraulic cylinder is fixed on the dolly which can move leftwards and rightwards; the mandril is fixed on the piston of the hydraulic cylinder; and the bracket is fixed on the top of the mandril. The device is characterized by also comprising a displacement sensor A, a photoelectric sensor B, a photoelectric sensor C, an analog/digital converter and a PLC; the displacement sensor A is fixed inside the mandril; linear relation exists between position signals generated by the displacement sensor A and the movement distance of the mandrill; the photoelectric sensor B and the photoelectric sensor C are fixed above the bracket and positioned on the same horizontal line; and the displacement sensor A, the photoelectric sensor B and the photoelectric sensor C are all connected with the PLC through the analog/digital converter. The invention has the advantages of simpleness, reliability, convenient installation and high control and measurement accuracy and is beneficial to quantitative statistic.
Description
Technical field
The present invention relates to supply with the section bar and the diameter metering field of reeling, be specially a kind of coiled material centering diameter measurer and method to machine.
Background technology
At present, in the control of metallurgy industry output strip line uncoiler coil of strip centering, what generally adopt is centralising device shown in Figure 1, by dolly 11, hydraulic cylinder 12, push rod 13, carriage 14, movable supporting frame 15 and sensor 161～163 are formed, its structure is: but dolly 11 move left and right, be fixed with hydraulic cylinder 12 on the dolly 11, be fixed with push rod 13 on the piston of hydraulic cylinder 12, piston can drive push rod 13 and move up and down, the top of push rod 13 is fixed with carriage 14, sensor 161～163 all is fixed on the movable supporting frame 15, distance between the sensor 161 and 163 equals the diameter of coil of strip 17 middle part through holes, sensor 162 is between sensor 161 and 163, and the mid point of sensor 161 and 163 lines is over against the center of uncoiler mandrel 18.The duty of sensor 161～163 is: when no object blocked between sensor and the uncoiler, sensor was in " OFF " state; When being blocked by opaque article between sensor and the uncoiler, sensor is in " ON " state.The operation principle of this centralising device is: coil of strip 17 is placed on the carriage 14, and under the drive of push rod 13, move up and down, the through hole at coil of strip 17 middle parts and uncoiler mandrel 18 constitute matched in clearance, position relation according to sensor 161～163, when sensor 161 and 163 and coil of strip 17 between all blocked and be in the ON state by coil of strip, and sensor 162 by coil of strip middle part through hole and coil of strip 17 between do not have and block when being in the OFF state, the through hole at coil of strip 17 middle parts is just in time between sensor 161 and 163 at this moment, because the mid point of sensor 161 and 163 lines is over against the center of uncoiler mandrel 18, therefore this moment coil of strip 17 the center line O-O ' of center line N-N ' and uncoiler 18 on a horizontal line, at this moment show promptly that coil of strip 17 reaches the centering position of appointment, stop to move up and down of push rod 13, move right by dolly 11 coil of strip 17 is delivered on the uncoiler mandrel 18.In this device, the support that the drive sensor moves comprises that trailing arm is to finish by the HYDRAULIC CONTROL SYSTEM of a cover hydraulic cylinder, hydraulic valve etc., and the position that takes up room is bigger, installs inconvenient.And this method only can play centering effect, do not reach the purpose of calibrating.
Summary of the invention
In order to overcome the defective of prior art, a kind of instrument that has easy for installation, compact conformation, finishes diameter measurement when centering is provided, the invention discloses a kind of coiled material centering diameter measurer and method.
The present invention reaches goal of the invention by following technical solution:
A kind of coiled material centering diameter measurer, comprise dolly, hydraulic cylinder, push rod, carriage, but be fixed with hydraulic cylinder on the dolly of move left and right, be fixed with push rod on the piston of hydraulic cylinder, the top of push rod is fixed with carriage, its structure is: also comprise the displacement transducer first, photoelectric sensor second, photoelectric sensor third, A/D converter and PLC, be fixed with the displacement transducer first in the push rod, the distance that position signalling that the displacement transducer first produces and push rod move is linear, fixed light electric transducer second and photoelectric sensor third directly over the carriage, photoelectric sensor second and photoelectric sensor third is on the same horizontal line, the displacement transducer first, photoelectric sensor second all is connected with PLC by A/D converter with photoelectric sensor third.
A kind of coiled material centering is calibrated method, the steps include: to adopt aforesaid coiled material centering diameter measurer, coil of strip is fixed on the carriage, the piston of hydraulic cylinder drives push rod and carriage moves up, when line between photoelectric sensor second and the photoelectric sensor third is blocked in the upper edge that moves to coil of strip, photoelectric sensor second and photoelectric sensor third delivered to PLC after sending signal and converting data signal to by A/D converter, the piston of PLC control hydraulic cylinder temporarily stops to move, this moment, the displacement transducer first was delivered to PLC after measuring the distance that moved and converting data to data signal by A/D converter, by the displacement of PLC according to push rod, the relative position of photoelectric sensor second and photoelectric sensor line, the relative position of uncoiler mandrel is calculated the diameter of coil of strip, the distance that also need continue to move with coil of strip, and continue mobile respective distance by the piston of PLC control hydraulic cylinder, finish the centering process.
A kind of coiled material centering diameter measurer, comprise dolly, hydraulic cylinder, push rod, carriage, but be fixed with hydraulic cylinder on the dolly of move left and right, be fixed with push rod on the piston of hydraulic cylinder, the top of push rod is fixed with carriage, its structure is: also comprise the displacement transducer first, grating second, grating third, A/D converter and single-chip microcomputer, be fixed with the displacement transducer first in the push rod, the distance that position signalling that the displacement transducer first produces and push rod move is linear, fixed grating second and grating third directly over the carriage, grating second and grating third is on the same horizontal line, the displacement transducer first, grating second all is connected with single-chip microcomputer by A/D converter with grating third.
A kind of coiled material centering is calibrated method, the steps include: to adopt aforesaid coiled material centering diameter measurer, coil of strip is fixed on the carriage, the piston of hydraulic cylinder drives push rod and carriage moves up, when line between grating second and the grating third is blocked in the upper edge that moves to coil of strip, grating second and grating third delivered to single-chip microcomputer after sending signal and converting data signal to by A/D converter, the piston of Single-chip Controlling hydraulic cylinder temporarily stops to move, this moment, the displacement transducer first was delivered to single-chip microcomputer after measuring the distance that moved and converting data to data signal by A/D converter, by the displacement of single-chip microcomputer according to push rod, the relative position of grating second and grating line, the relative position of uncoiler mandrel is calculated the diameter of coil of strip, the distance that also need continue to move with coil of strip, and continue mobile respective distance by the piston of Single-chip Controlling hydraulic cylinder, finish the centering process.
Described coiled material centering is calibrated method, and the displacement the when diameter of coil of strip and centering is determined by following method respectively:
If it is h that photoelectric sensor line or grating are wired to the distance at push rod top
1, the center line of uncoiler mandrel is h to the push rod distance from top
0, the thickness of carriage is r, it is Δ h that coil of strip suspends the displacement of ending when beginning at first to move to photoelectric sensor line or grating line
1, the diameter of coil of strip is D, it is Δ h that the centering of coil of strip is moved total distance
0, then
D＝h
1-r-Δh
1；
The present invention constitutes together by sensor, grating, landing hydraulic cylinder and PLC or single-chip microcomputer that coil of strip is calibrated and the centering control system, obtained beneficial effect is: displacement transducer is contained in the push rod inside of hydraulic cylinder, do not take up room, package unit is simple and reliable, easy for installation, Position Control and diameter detection method precision height help the quantitative statistics on the production line.
Description of drawings
Fig. 1 is the prior art constructions schematic diagram;
Fig. 2 is the structural representation of the present invention that adopts photoelectric sensor and PLC;
Fig. 3 is the variable schematic diagram when adopting equipment shown in Figure 2 that neutralization is calibrated;
Fig. 4 is the control system connection diagram of the present invention that adopts photoelectric sensor and PLC;
Fig. 5 is the structural representation of the present invention that adopts grating and single-chip microcomputer;
Fig. 6 is the control system connection diagram of the present invention that adopts grating and single-chip microcomputer.
The specific embodiment
Below further specify the present invention by specific embodiment.
Embodiment 1
A kind of coiled material centering diameter measurer, comprise dolly 21, hydraulic cylinder 22, push rod 23, carriage 24, displacement transducer first 261, photoelectric sensor second 262, photoelectric sensor the third 263, A/D converter 29 and PLC30, concrete structure is: but be fixed with hydraulic cylinder 22 on the dolly 21 of move left and right, be fixed with push rod 23 on the piston of hydraulic cylinder 22, the top of push rod 23 is fixed with carriage 24, be fixed with displacement transducer first 261 in the push rod 23, the distance that position signalling that displacement transducer first 261 produces and push rod 23 move is linear, fixed light electric transducer second 262 and photoelectric sensor the third 263 directly over the carriage 24, photoelectric sensor second 262 and photoelectric sensor the third 263 is on the same horizontal line displacement transducer first 261, photoelectric sensor second 262 and photoelectric sensor the third 263 all passes through A/D converter 29 and is connected with PLC30.
When using present embodiment to carry out neutralization calibrated, coil of strip 27 is fixed on the carriage 24, the piston of hydraulic cylinder 22 drives push rod 23 and carriage 24 moves up, when line between photoelectric sensor second 262 and the photoelectric sensor the third 263 is blocked in the upper edge that moves to coil of strip 27, photoelectric sensor second 262 and photoelectric sensor the third 263 delivered to PLC30 after sending signal and converting data signal to by A/D converter, the piston of PLC30 control hydraulic cylinder 22 temporarily stops to move, this moment, displacement transducer first 261 was delivered to PLC30 with data after measuring the distance that moved and converting data signal to by A/D converter, by the displacement of PLC30 according to push rod 23, the relative position of photoelectric sensor second 262 and photoelectric sensor 263 lines, the relative position of uncoiler mandrel 18 is calculated the diameter of coil of strip 27, the distance that also need continue to move with coil of strip 27, and continue mobile respective distance by the piston of PLC30 control hydraulic cylinder 22, finish the centering process.
Displacement when the diameter of coil of strip 27 and centering is determined by following method respectively:
If it is h that photoelectric sensor line or grating are wired to the distance at push rod 23 tops
1, the center line of uncoiler mandrel 28 is h to push rod 23 distance from tops
0, the thickness of carriage 24 is r, it is Δ h that coil of strip 27 suspends the displacement of ending when beginning at first to move to photoelectric sensor line or grating line
1, the diameter of coil of strip 27 is D, it is Δ h that the centering of coil of strip is moved total distance
0, then
D＝h
1-r-Δh
1；
Embodiment 2
A kind of coiled material centering diameter measurer, comprise dolly 21, hydraulic cylinder 22, push rod 23, carriage 24, displacement transducer first 261, grating second 362, grating the third 363, A/D converter 29 and single-chip microcomputer 40, concrete structure is: but be fixed with hydraulic cylinder 22 on the dolly 21 of move left and right, be fixed with push rod 23 on the piston of hydraulic cylinder 22, the top of push rod 23 is fixed with carriage 24, be fixed with displacement transducer first 261 in the push rod 23, the distance that position signalling that displacement transducer first 261 produces and push rod 23 move is linear, fixed grating second 362 and grating the third 363 directly over the carriage 24, grating second 362 and grating the third 363 is on the same horizontal line displacement transducer first 261, grating second 362 and grating the third 363 all passes through A/D converter 29 and is connected with single-chip microcomputer 40.
When using present embodiment to carry out neutralization calibrated, coil of strip 27 is fixed on the carriage 24, the piston of hydraulic cylinder 22 drives push rod 23 and carriage 24 moves up, when line between grating second 262 and the grating the third 263 is blocked in the upper edge that moves to coil of strip 27, grating second 262 and grating the third 263 delivered to single-chip microcomputer 40 after sending signal and converting data signal to by A/D converter, the piston of single-chip microcomputer 40 control hydraulic cylinders 22 temporarily stops to move, this moment, displacement transducer first 261 was delivered to single-chip microcomputer 40 with data after measuring the distance that moved and converting data signal to by A/D converter, by the displacement of single-chip microcomputer 40 according to push rod 23, the relative position of grating second 262 and grating 263 lines, the relative position of uncoiler mandrel 18 is calculated the diameter of coil of strip 27, the distance that also need continue to move with coil of strip 27, and continue mobile respective distance by the piston of single-chip microcomputer 40 control hydraulic cylinders 22, finish the centering process.
Displacement when the diameter of coil of strip 27 and centering is determined by following method respectively:
If it is h that photoelectric sensor line or grating are wired to the distance at push rod 23 tops
1, the center line of uncoiler mandrel 28 is h to push rod 23 distance from tops
0, the thickness of carriage 24 is r, it is Δ h that coil of strip 27 suspends the displacement of ending when beginning at first to move to photoelectric sensor line or grating line
1, the diameter of coil of strip 27 is D, it is Δ h that the centering of coil of strip is moved total distance
0, then
D＝h
1-r-Δh
1；
Claims (5)
1. coiled material centering diameter measurer, comprise dolly (21), hydraulic cylinder (22), push rod (23), carriage (24), but be fixed with hydraulic cylinder (22) on the dolly of move left and right (21), be fixed with push rod (23) on the piston of hydraulic cylinder (22), the top of push rod (23) is fixed with carriage (24), it is characterized in that: also comprise displacement transducer first (261), photoelectric sensor second (262), photoelectric sensor third (263), A/D converter (29) and PLC (30), be fixed with displacement transducer first (261) in the push rod (23), the distance that position signalling that displacement transducer first (261) produces and push rod (23) move is linear, fixed light electric transducer second (262) and photoelectric sensor third (263) directly over the carriage (24), photoelectric sensor second (262) and photoelectric sensor third (263) are on the same horizontal line, displacement transducer first (261), photoelectric sensor second (262) is all passed through A/D converter (29) with photoelectric sensor third (263) and is connected with PLC (30).
2. coiled material centering diameter measurer, comprise dolly (21), hydraulic cylinder (22), push rod (23), carriage (24), but be fixed with hydraulic cylinder (22) on the dolly of move left and right (21), be fixed with push rod (23) on the piston of hydraulic cylinder (22), the top of push rod (23) is fixed with carriage (24), it is characterized in that: also comprise displacement transducer first (261), grating second (362), grating third (363), A/D converter (29) and single-chip microcomputer (40), be fixed with displacement transducer first (261) in the push rod (23), the distance that position signalling that displacement transducer first (261) produces and push rod (23) move is linear, fixed grating second (362) and grating third (363) directly over the carriage (24), grating second (362) and grating third (363) are on the same horizontal line, displacement transducer first (261), grating second (362) is all passed through A/D converter (29) with grating third (363) and is connected with single-chip microcomputer (40).
3. a coiled material centering is calibrated method, it is characterized in that: adopt coiled material centering diameter measurer as claimed in claim 1, coil of strip (27) is fixed on the carriage (24), the piston of hydraulic cylinder (22) drives push rod (23) and carriage (24) moves up, when line between photoelectric sensor second (262) and the photoelectric sensor third (263) is blocked in the upper edge that moves to coil of strip (27), photoelectric sensor second (262) and photoelectric sensor third (263) are delivered to PLC (30) after sending signal and converting data signal to by A/D converter, the piston of PLC (30) control hydraulic cylinder (22) temporarily stops to move, displacement transducer first this moment (261) is delivered to PLC (30) with data after measuring the distance that moved and converting data signal to by A/D converter, by the displacement of PLC (30) according to push rod (23), the relative position of photoelectric sensor second (262) and photoelectric sensor (263) line, the relative position of uncoiler mandrel (18) is calculated the diameter of coil of strip (27), and coil of strip (27) distance that also need continue to move, and continue mobile respective distance by the piston of PLC (30) control hydraulic cylinder (22), finish the centering process.
4. a coiled material centering is calibrated method, it is characterized in that: adopt coiled material centering diameter measurer as claimed in claim 2, coil of strip (27) is fixed on the carriage (24), the piston of hydraulic cylinder (22) drives push rod (23) and carriage (24) moves up, when line between grating second (262) and the grating third (263) is blocked in the upper edge that moves to coil of strip (27), grating second (262) and grating third (263) are delivered to single-chip microcomputer (40) after sending signal and converting data signal to by A/D converter, the piston of single-chip microcomputer (40) control hydraulic cylinder (22) temporarily stops to move, displacement transducer first this moment (261) is delivered to single-chip microcomputer (40) with data after measuring the distance that moved and converting data signal to by A/D converter, by the displacement of single-chip microcomputer (40) according to push rod (23), the relative position of grating second (262) and grating (263) line, the relative position of uncoiler mandrel (18) is calculated the diameter of coil of strip (27), and coil of strip (27) distance that also need continue to move, and continue mobile respective distance by the piston of single-chip microcomputer (40) control hydraulic cylinder (22), finish the centering process.
5. calibrate method as claim 3 or 4 described coiled material centerings, it is characterized in that: the displacement the when diameter of coil of strip (27) and centering is determined by following method respectively:
If it is h that photoelectric sensor line or grating are wired to the distance at push rod (23) top
1, the center line of uncoiler mandrel (28) is h to push rod (23) distance from top
0, the thickness of carriage (24) is r, it is Δ h that coil of strip (27) suspends the displacement of ending when beginning at first to move to photoelectric sensor line or grating line
1, the diameter of coil of strip (27) is D, it is Δ h that the centering of coil of strip is moved total distance
0, then
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008102006562A CN101537445B (en) | 2008-09-27 | 2008-09-27 | Device and method for coiled material centering and diameter measuring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008102006562A CN101537445B (en) | 2008-09-27 | 2008-09-27 | Device and method for coiled material centering and diameter measuring |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101537445A true CN101537445A (en) | 2009-09-23 |
| CN101537445B CN101537445B (en) | 2011-06-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008102006562A Expired - Fee Related CN101537445B (en) | 2008-09-27 | 2008-09-27 | Device and method for coiled material centering and diameter measuring |
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| CN101537445B (en) | 2011-06-22 |
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