CN102297724A - Light converging device for hot metal detector - Google Patents

Light converging device for hot metal detector Download PDF

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Publication number
CN102297724A
CN102297724A CN2011103015857A CN201110301585A CN102297724A CN 102297724 A CN102297724 A CN 102297724A CN 2011103015857 A CN2011103015857 A CN 2011103015857A CN 201110301585 A CN201110301585 A CN 201110301585A CN 102297724 A CN102297724 A CN 102297724A
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CN
China
Prior art keywords
light pipe
hot metal
metal detector
bucket
optical device
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN2011103015857A
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Chinese (zh)
Inventor
田原
范新有
杨永亮
翟国华
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Xinxing Ductile Iron Pipes Co Ltd
Original Assignee
Xinxing Ductile Iron Pipes Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Xinxing Ductile Iron Pipes Co Ltd filed Critical Xinxing Ductile Iron Pipes Co Ltd
Priority to CN2011103015857A priority Critical patent/CN102297724A/en
Publication of CN102297724A publication Critical patent/CN102297724A/en
Pending legal-status Critical Current

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Abstract

The invention relates to a light converging device for a hot metal detector. The provided light converging device for the hot metal detector has simple structure and low cost, and is simple and convenient in operation. The light converging device for the hot metal detector comprises an outer barrel, an inner barrel, a front light converging tube and a rear light converging tube, wherein the outer barrel is sleeved on the inner barrel; the front light converging tube is fixedly arranged at the middle part of the front end of the outer barrel; and the rear light converging tube is fixedly arranged at the middle part of the rear end of the inner barrel. The front light converging tube is fixedly arranged at the middle part of the front end of the outer barrel, the rear light converging tube is fixedly arranged at the middle part of the rear end of the inner barrel, the rear end of the inner barrel is arranged in a light blocking cylinder of the hot metal detector, and the adjustment of the detection area can be realized by changing the stretching quantity of the inner barrel, so that controllable detection area of a detected object is realized, over large detection area and inaccurate detection and positioning are prevented when the hot metal detector is used in a long distance, and the normal operation of equipment is ensured.

Description

Hot metal detector is held back electro-optical device
Technical field
The present invention relates to the optical detecting gear that a kind of thermometal detects, particularly relate to a kind of electro-optical device of holding back that is used for hot metal detector.
Background technology
In the existing industrial automation checkout equipment, mainly be to detect by hot metal detector to the position probing of thermometal.Hot metal detector belongs to photoelectric detection system, is used to discern the forward position and the direction of thermometal motion.Hot metal detector comprises the opto-electronic conversion circuit, and electronic switch is outlet line and electronic compensation circuit relatively.Its principle of work is: the infrared heat radiation that lens send testee is sent to delivers to the electronic switch alternative route after the opto-electronic conversion line transfer becomes electric signal and amplification, when reaching the trigger point, radiant quantity (the different temperatures trigger point can be set voluntarily, regulate the optimum temperature influence), the electronic switch outlet line just is triggered.
Hot metal detector is specially adapted to the detection of hot-strip, comprising: steel rolling mill: the control shearer, and the supervision hot rod, control Kun bed, coil is regulated, switch crosscut loop wheel machine, cold bed batches control, monitors that the edge cleans, continuous casting or tracking high speed coil.Coke oven: monitor and quench, shear screwdown gear, and interior exhaust flame of stove and conveyer.The forging and pressing casting: monitor casting cycle, position control, refuse incinerator monitors travelling belt, blast furnace, refuse monitor that the glass industry monitors the casting pressing mold.
Because hot metal detector is mainly used in the detection to the high temperature object, if it is near excessively from the high temperature object when detecting, then can make its photoelectric detection system exceed normal working temperature, so hot metal detector is in use all away from the high temperature object, but when remote the use, its inspection area must increase, movement position for thermometal detects misalignment, can not accomplish accurate location, causes the plant equipment stroke defect, thereby equipment breakdown occurs, have a strong impact on the activity duration.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of hot metal detector simple in structure, that cost is low, easy and simple to handle and holds back electro-optical device, can make hot metal detector decide the movement position of thermometal accurately, guarantees the normal operation of equipment.
Hot metal detector of the present invention is held back electro-optical device, comprise outer bucket, interior bucket, preceding hold back light pipe and after hold back light pipe, in outer casing is contained on the bucket, the preceding light pipe fixed installation front center of bucket outside of holding back, after hold back light pipe be fixedly mounted in the rear end middle part of bucket, preceding rear end of holding back light pipe towards after hold back the front end of light pipe.
Hot metal detector of the present invention is held back electro-optical device, and the inner peripheral surface of holding back light pipe before wherein said is a uneven surface.
Hot metal detector of the present invention is held back electro-optical device, and the color of inner peripheral surface of holding back light pipe before wherein said is for dark.
Hot metal detector of the present invention is held back electro-optical device, and the inner peripheral surface of holding back light pipe after wherein said is a uneven surface, and the color of its inner peripheral surface is dark.
Hot metal detector of the present invention is held back electro-optical device, wherein before hold back and be set with cone-shaped ring on the light pipe regularly, before hold back the front end face of light pipe and cone-shaped ring small end face at grade, the big end of cone-shaped ring is fixedlyed connected with cylindrical outer bucket front end, after hold back and be set with annulus on the light pipe regularly, after hold back the rear end face of light pipe and annulus rear end face at grade, the front end of annulus with cylindrical in the rear end of bucket fixedly connected.
Hot metal detector of the present invention is held back electro-optical device, hold back before wherein said light pipe and after hold back light pipe dead in line.
Hot metal detector of the present invention is held back electro-optical device, and wherein said interior bucket and outer bucket are clearance fit.
Hot metal detector of the present invention is held back electro-optical device, offers at least one threaded hole on the bucket wall of wherein said outer bucket, and holding screw is installed in the threaded hole, and the front end of holding screw is pressed on the outer circumference surface of interior bucket.
Hot metal detector of the present invention is held back electro-optical device, and the internal diameter of holding back light pipe before wherein said is the 2-30 millimeter; The internal diameter of holding back light pipe after described is the 2-30 millimeter.
Hot metal detector of the present invention is held back the electro-optical device difference from prior art and is that the present invention is by holding back light pipe before the fixed installation of bucket front center outside, after middle part, the rear end fixed installation of interior bucket, hold back light pipe, will be in the rear end of interior bucket be packed the baffling barrel of hot metal detector into, when the infrared ray that has only object to be detected to send order by preceding hold back light pipe and after hold back light pipe after, just can be received by hot metal detector, overhang by bucket in changing, can realize the adjustment of area of detection, thereby the area of detection that realizes object to be detected is controlled, when preventing hot metal detector and using at a distance, area of detection is excessive, the situation of detection and location misalignment guarantees the normal operation of equipment.
The invention will be further described below in conjunction with accompanying drawing.
Description of drawings
Fig. 1 holds back the front view of electro-optical device for hot metal detector of the present invention;
Fig. 2 is the right view of Fig. 1;
Fig. 3 is the left view of Fig. 1;
Fig. 4 is along the cut-open view of A-A direction among Fig. 1;
Fig. 5 holds back the axonometric drawing of electro-optical device for hot metal detector of the present invention.
Fig. 6 holds back the fundamental diagram of electro-optical device for hot metal detector of the present invention.
Embodiment
Extremely shown in Figure 5 as Fig. 1, a kind of hot metal detector of the present invention is held back electro-optical device, comprise cylindrical outer bucket 1, cylindrical in bucket 2, preceding hold back light pipe 3 and after hold back light pipe 4, outer bucket 1 is sleeved on the interior bucket 2, outer bucket 1 and interior bucket 2 be clearance fit, offer on the bucket wall at bucket 1 rear portion outside 5,3 threaded holes of 3 threaded holes 5 along outer bucket 1 circumference all with distribution, a holding screw respectively is installed in each threaded hole 5, and the front end of holding screw is pressed on the outer circumference surface of interior bucket 2.The front end of bucket 1 is provided with cone-shaped ring 6 outside, cone-shaped ring 6 is one-body molded with outer barrel 1, before hold back light pipe 3 and be installed in the cone-shaped ring 6, before hold back light pipe 3 front end fixedly connected with the front end of cone-shaped ring 6, be provided with an annulus 7 in interior bucket 2 rear ends, the front end face of annulus 7 is fixedlyed connected with interior barrel 2 rear end face, after hold back light pipe 4 the rear end fixedly connected with annulus 7, before hold back light pipe 3 with after to hold back the internal diameter of light pipe 4 identical, and dead in line.Before hold back light pipe 3 and after hold back light pipe 4 inner peripheral surface all be processed as uneven surface, and on inner peripheral surface, smear the pigment of black or grey.The inside diameter ranges of wherein before holding back light pipe 3 is 2 millimeters to 30 millimeters, after hold back light pipe 4 inside diameter ranges be 2 millimeters to 30 millimeters, in bucket 2 length range be 5 millimeters to 500 millimeters, the length range of outer bucket 1 is 5 millimeters to 500 millimeters, the cone angle scope of cone-shaped ring 6 is that 5 degree are to 180 degree.
Hot metal detector of the present invention is held back electro-optical device in use, as shown in Figure 6, pack in the baffling barrel 8 of hot metal detector in the rear end that at first will hold back the interior bucket 2 of electro-optical device, gap exotic material 9 between interior bucket 2 and the baffling barrel 8, fill as fire clay, when needs detection and location thermometal 10, outer bucket 1 is drawn out to assigned address forward, then 3 holding screws are tightened, the position relative fixed of bucket 2 and outer bucket 1 in realizing, can realize ultrared detection on specific region 11 areas of thermometal 10, the area of the specific region 11 of thermometal 10 can be by the outer bucket 1 of pulling, hold back before the change light pipe 3 and after the distance of holding back between the light pipe 4 adjust.Its principle of work is: the infrared ray that sends on the specific region 11 of thermometal 10 through before hold back light pipe 3, after hold back light pipe 4, inject the convex lens in the baffling barrel 8, planoconvex lens focuses on the laggard optical fiber of going into, and is sent to the opto-electronic conversion circuit then, is detected by hot metal detector; And the outer infrared rays that send in the specific region 11 of thermometal 10 through before hold back light pipe 3 and after hold back the diffuse reflection and absorption of black uneven surface of inner peripheral surface of light pipe 4 after, eliminated interference to hot metal detector, realize accurate detection and location.
Above-described embodiment is described preferred implementation of the present invention; be not that scope of the present invention is limited; design under the prerequisite of spirit not breaking away from the present invention; various distortion and improvement that those of ordinary skills make technical scheme of the present invention all should fall in the definite protection domain of claims of the present invention.

Claims (9)

1. a hot metal detector is held back electro-optical device, it is characterized in that: comprise outer bucket (1), interior bucket (2), preceding hold back light pipe (3) and after hold back light pipe (4), described outer bucket (1) is sleeved on the interior bucket (2), hold back light pipe (3) the fixed installation front center of bucket (1) outside before described, hold back light pipe (4) after described and be fixedly mounted on the middle part, rear end of interior bucket (2), the rear end of holding back light pipe (3) before described towards after hold back the front end of light pipe (4).
2. hot metal detector according to claim 1 is held back electro-optical device, it is characterized in that: the inner peripheral surface of holding back light pipe (3) before described is a uneven surface.
3. hot metal detector according to claim 2 is held back electro-optical device, it is characterized in that: the color of holding back the inner peripheral surface of light pipe (3) before described is dark color.
4. hot metal detector according to claim 3 is held back electro-optical device, it is characterized in that: the inner peripheral surface of holding back light pipe (4) after described is a uneven surface, and the color of its inner peripheral surface is dark.
5. hot metal detector according to claim 4 is held back electro-optical device, it is characterized in that: hold back before described and be set with cone-shaped ring (6) on the light pipe (3) regularly, before hold back the front end face of light pipe (3) and cone-shaped ring (6) small end face at grade, the big end of cone-shaped ring (6) is fixedlyed connected with cylindrical outer bucket (1) front end, hold back after described and be set with annulus (7) on the light pipe (4) regularly, after hold back the rear end face of light pipe (4) and annulus (7) rear end face at grade, the front end of annulus (7) with cylindrical in the rear end of bucket (2) fixedly connected.
6. hot metal detector according to claim 5 is held back electro-optical device, it is characterized in that: hold back before described light pipe (3) and after hold back the dead in line of light pipe (4).
7. hot metal detector according to claim 6 is held back electro-optical device, it is characterized in that: bucket (2) and outer bucket (1) are clearance fit in described.
8. hot metal detector according to claim 7 is held back electro-optical device, it is characterized in that: offer at least one threaded hole (5) on the bucket wall of described outer bucket (1), threaded hole is equipped with holding screw in (5), and the front end of holding screw is pressed on the outer circumference surface of interior bucket (2).
9. hold back electro-optical device according to any described hot metal detector of claim 1-8, it is characterized in that: the internal diameter of holding back light pipe (3) before described is the 2-30 millimeter; The internal diameter of holding back light pipe (4) after described is the 2-30 millimeter.
CN2011103015857A 2011-09-30 2011-09-30 Light converging device for hot metal detector Pending CN102297724A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011103015857A CN102297724A (en) 2011-09-30 2011-09-30 Light converging device for hot metal detector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011103015857A CN102297724A (en) 2011-09-30 2011-09-30 Light converging device for hot metal detector

Publications (1)

Publication Number Publication Date
CN102297724A true CN102297724A (en) 2011-12-28

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CN2011103015857A Pending CN102297724A (en) 2011-09-30 2011-09-30 Light converging device for hot metal detector

Country Status (1)

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CN (1) CN102297724A (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2116191U (en) * 1992-03-11 1992-09-16 鞍山钢铁公司 Optical fibre coupling hot metal detector
CN2229649Y (en) * 1995-03-14 1996-06-19 黄山三联光电工业公司 Testing and measuring device for hot metal
CN2340032Y (en) * 1998-09-30 1999-09-22 王启华 Laser network monitoring alarming device
CN102103219A (en) * 2010-11-25 2011-06-22 西安新竹防灾救生设备有限公司 Positioning and detecting device of fire source
CN201964853U (en) * 2010-12-02 2011-09-07 贵州航太精密制造有限公司 Measuring device for sealing inner conical surface of tube union

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2116191U (en) * 1992-03-11 1992-09-16 鞍山钢铁公司 Optical fibre coupling hot metal detector
CN2229649Y (en) * 1995-03-14 1996-06-19 黄山三联光电工业公司 Testing and measuring device for hot metal
CN2340032Y (en) * 1998-09-30 1999-09-22 王启华 Laser network monitoring alarming device
CN102103219A (en) * 2010-11-25 2011-06-22 西安新竹防灾救生设备有限公司 Positioning and detecting device of fire source
CN201964853U (en) * 2010-12-02 2011-09-07 贵州航太精密制造有限公司 Measuring device for sealing inner conical surface of tube union

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Application publication date: 20111228