CN110530301B

CN110530301B - Steel flatness detection system

Info

Publication number: CN110530301B
Application number: CN201910937274.6A
Authority: CN
Inventors: 周伟伟
Original assignee: Xiaoxian Zhongke Electromagnetic Testing Co ltd
Current assignee: Xiaoxian Zhongke Electromagnetic Testing Co ltd
Priority date: 2019-09-30
Filing date: 2019-09-30
Publication date: 2020-11-24
Anticipated expiration: 2039-09-30
Also published as: CN110530301A

Abstract

The invention discloses a steel flatness detection system which comprises an operation table, wherein a conveying mechanism is arranged on the upper surface of the operation table, detection mechanisms are fixedly connected to the upper surface of the operation table and positioned on two sides of the conveying mechanism, a rotating mechanism is fixedly connected to the back side of the upper surface of the operation table, waste recovery mechanisms are fixedly connected to the two sides of the operation table in an extending mode, and a system shell is sleeved outside the operation table. According to the steel flatness detection system, the conveyor belt driven by the motor is arranged, the light emitter which is automatically triggered by the attraction of the steel on the magnet emits light beams, the full-process unmanned detection can be realized, the intelligent level is high, the detection is rapid, the light emitter is turned on only when the steel to be detected arrives through the arranged magnet, the contact electrode and the fixed electrode, the detection is finished and the light emitter is automatically turned off, the automation level is high, the electric energy is saved, and the economy is high.

Description

Steel flatness detection system

Technical Field

The invention relates to the field of steel detection, in particular to a steel flatness detection system.

Background

The steel is a material with certain shape, size and performance, which is made of steel ingots, steel billets or steel materials through pressure processing, most of the steel processing is through pressure processing, so that the processed steel (billets, ingots and the like) generates plastic deformation, and the surface smoothness of the steel needs to be detected after leaving a factory to detect that the quality of the steel is qualified, so that a steel flatness detection system is needed.

The existing steel flatness detection system has certain defects when in use, firstly, the traditional steel flatness detection system cannot realize assembly line detection and only can detect a single piece of steel, and can detect time and labor consumption of a large amount of steel, secondly, the existing steel flatness detector cannot simultaneously detect the two-sided and two-way flatness of the steel, and further needs to manually turn over the steel, detect again, consume time and labor, threaten the safety of workers, and influence the detection accuracy.

Disclosure of Invention

The invention mainly aims to provide a steel flatness detection system which can effectively solve the problems in the background technology.

In order to achieve the purpose, the invention adopts the technical scheme that:

the utility model provides a steel roughness detecting system, includes the operation panel, the upper surface of operation panel is provided with transport mechanism, the upper surface of operation panel and the both sides fixedly connected with detection mechanism who is located transport mechanism, the upper surface dorsal part fixedly connected with rotary mechanism of operation panel, the epitaxial fixedly connected with waste product recovery mechanism in both sides of operation panel, the system's shell has been cup jointed to the outside of operation panel.

Preferably, the operation table comprises a table top, table legs are fixedly connected to the middle of the lower surface of the table top and the four corners of the table top, a system switch is electrically connected to the lower surface of the table top, and a control computer is electrically connected to the tail of the system switch.

Preferably, transport mechanism includes conveyer belt and conveying motor, the conveyer belt is by conveying motor transmission, the conveying pivot is connected in conveying motor's output transmission, the internal surface and the desktop of conveyer belt cup joint, the tip and the conveying motor fixed connection of desktop can realize the unmanned detection of full flow through the conveying motor driven conveyer belt that sets up, and automatic level is high, detects fast, can detect the butt joint with other characteristics of steel.

Preferably, the detection mechanism is divided into a lower surface detector and an upper surface detector, the lower surface detector is divided into a lower surface transverse detection device and a lower surface longitudinal detection device, the upper surface detector is divided into an upper surface transverse detection device and an upper surface longitudinal detection device, the lower surface transverse detection device comprises a fixed plate, the lower surface of the end part of the fixed plate is fixedly connected with an electromagnet, the other end part of the fixed plate is fixedly connected with a desktop, an optical transmitter is fixedly connected to one side of the electromagnet in an extending manner, an illuminant is electrically connected to the lower part of the optical transmitter, an optical receiver is fixedly connected to the other side of the electromagnet in an extending manner, the optical receiver and the optical transmitter are horizontally arranged in a transverse manner, an optical imaging plate is electrically connected to the lower part of the optical receiver, the illuminant and the optical imaging plate are at, the upper surface middle part of the magnet is vertically and fixedly connected with a supporting column, both sides of the end part of the supporting column, which is far away from one end of the magnet, are fixedly connected with contact electrodes, a sliding groove is arranged in the fixed plate and positioned at the periphery of the supporting column, a fixed electrode is fixedly connected in the sliding groove and positioned under the contact electrodes, a sliding block is slidably connected in the sliding groove and positioned under the fixed electrode, a compression spring is fixedly connected to the lower surface of the sliding block, one end of the compression spring, which is far away from the sliding block, is fixedly connected with the lower surface of the sliding groove, the lower surface transverse detection device has the same structure as the lower surface longitudinal detection device, the difference is that an optical transmitter and an optical receiver of the lower surface longitudinal detection device are longitudinally arranged, an optical transmitter automatically triggered by the gravitation of steel by the magnet is arranged, can realize the horizontal vertical two-way detection in two sides of a steel, detect the precision height, simple structure, the change of being convenient for makes this system just open the optical transmitter through magnet, contact electrode and the fixed electrode that sets up when the steel that awaits measuring arrives, detects the self-closing that finishes, practices thrift the electric energy, and economic nature is strong.

Preferably, the upper surface transverse detection device is identical to the upper surface longitudinal detection device in structure, and the upper surface transverse detection device is similar to the lower surface transverse detection device in structure, except that the optical transmitter and the optical receiver are respectively and fixedly installed on two sides of the conveyor belt, the optical transmitter and the optical receiver are located at the same height, the connection line direction of the optical transmitter and the optical receiver is perpendicular to the conveying direction of the conveyor belt, the lower surface of the magnet is fixedly connected with the table top, and the magnet is located on the lower surface of the conveyor belt.

Preferably, the rotating device comprises a fixed body, one end of the fixed body is fixedly connected with the tabletop, the upper surface of the other end of the fixed body is fixedly connected with a rotating motor, the output end of the rotating motor is rotatably connected with a rotating shaft, the other end of the rotating shaft penetrates through the fixed body and extends to the lower part of the fixed body to be fixedly connected with a rotating plate, the lower surface of the rotating plate is fixedly connected with a rotating magnet, the middle part of the rotating magnet is slidably connected with a magnetic induction device, the middle part of the fixed body is provided with a rotating groove, one section of the rotating shaft, which is positioned inside the rotating groove, is sleeved with a rotating body, the inner edge of the rotating groove is fixedly connected with baffle plates, the two baffle plates are vertically arranged, the middle part of the inner side of the rotating groove is fixedly connected with a spring limiting plate, and the middle part of the spring limiting, spacing spring's the one end and the rotator elastic connection of keeping away from the spring limiting plate, the middle part fixedly connected with pressure sensor of baffle through the automatic rotary mechanism who sets up, is triggered steel gravitation through magnetic induction device, with steel autogiration, stops the difficult problem that steel upper surface can't detect, also stops the artificial steel turn-over, labour saving and time saving detects fast, and the security is strong, through setting up pressure sensor, makes the rotatory 90 degrees of steel that await measuring put down automatically, and science and technology feels ten sufficient.

Preferably, the waste recycling mechanism comprises an air cylinder, the upper surface of the table top is fixedly connected with the air cylinder, the air cylinder is fixedly installed on one side of the conveying belt, a waste groove is formed in the position, opposite to the output end of the air cylinder, of the other side, located on the conveying belt, of the air cylinder, the detected inferior-quality products directly enter the waste groove through the pushing of the air cylinder under the control of a computer through the arranged air cylinder and the waste groove, the separation of the inferior-quality products and the good-quality products is achieved, the automation level is high, manual carrying can be saved, in addition, the types of the inferior-quality products can be distinguished through the arrangement of the four air.

Preferably, the waste product groove is fixedly arranged on the extension of the conveyor belt, and the opening of the waste product groove is flush with the height of the conveyor belt.

Preferably, the output end of the optical receiver is electrically connected with a control computer, the receiving end of the optical transmitter is electrically connected with the control computer, and the switch of the optical transmitter is controlled by the contact electrode and the fixed electrode.

Compared with the prior art, the invention has the following beneficial effects:

1. the conveyor belt is driven by the arranged conveying motor, the full-flow unmanned detection can be realized, the automation level is high, the detection is quick, the conveyor belt can be in butt joint with other characteristics of steel, the universality is strong, various steel can be detected, and the practicability is strong;

2. the steel is automatically rotated by the arranged automatic rotating mechanism and triggered by the attraction force generated by the attraction of the steel by the magnetic induction device, so that the problem that the two sides of the steel cannot be detected in two directions is solved, the manual turnover of the steel is avoided, the time and labor are saved, the detection is quick, the safety is high, the steel to be detected is automatically put down after rotating 90 degrees by arranging the pressure sensor, and the scientific and technological sense is very sufficient;

3. through the cylinder and the waste product groove that set up, make the substandard product that detects out directly get into the waste product groove through the promotion of cylinder through control computer control, realize the separation of substandard product and good product, automatic level is high, still can practice thrift the manpower transport, in addition through setting up four cylinders and waste product groove, still can distinguish the kind of substandard product, is convenient for solve the substandard product.

The parts of the device not involved are the same as or can be implemented using prior art.

Drawings

FIG. 1 is a schematic view of the overall structure of a steel flatness detecting system according to the present invention;

FIG. 2 is a schematic view of a detecting device of the steel flatness detecting system according to the present invention;

FIG. 3 is an enlarged view of the structure A of FIG. 2 of a steel flatness detection system according to the present invention;

FIG. 4 is a schematic view of a rotating mechanism of the steel flatness detecting system according to the present invention;

FIG. 5 is a schematic view of a rotary fixing device of the steel flatness detecting system according to the present invention.

In the figure: 1. an operation table; 2. a transport mechanism; 3. a detection mechanism; 4. a rotation mechanism; 5. a waste recovery mechanism; 6. a system housing; 7. a control computer; 101. a desktop; 102. desk legs; 103. a system switch; 201. a conveyor belt; 202. a transfer motor; 203. a transmission rotating shaft; 301. a fixing plate; 302. an electromagnet; 303. an optical transmitter; 304. a light emitter; 305. an optical receiver; 306. a light imaging plate; 307. a magnet; 308. a support pillar; 309. a contact electrode; 310. a fixed electrode; 311. a slider; 312. a compression spring; 314. a chute; 401. a fixed body; 402. a rotating electric machine; 403. rotating the rotating shaft; 404. a rotating plate; 405. rotating the magnet; 406. a magnetic induction device; 407. a rotating tank; 408. a rotating body; 409. a baffle plate; 410. a spring defining plate; 411. a limiting spring; 412. a pressure sensor; 501. a cylinder; 502. a waste product tank.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.

As shown in fig. 1-5, a steel flatness detection system includes an operation table 1, a conveying mechanism 2 is disposed on an upper surface of the operation table 1, detection mechanisms 3 are fixedly connected to two sides of the conveying mechanism 2 and on the upper surface of the operation table 1, a rotating mechanism 4 is fixedly connected to a back side of the upper surface of the operation table 1, waste recycling mechanisms 5 are fixedly connected to two sides of the operation table 1 in an extending manner, and a system housing 6 is sleeved outside the operation table 1.

Further, the operation table 1 comprises a table top 101, wherein table legs 102 are fixedly connected to the middle portion and four corners of the lower surface of the table top 101, a system switch 103 is electrically connected to the lower surface of the table top 101, and a control computer 7 is electrically connected to the tail portion of the system switch 103.

Further, transport mechanism 2 includes conveyer belt 201 and conveying motor 202, conveyer belt 201 is by the transmission of conveying motor 202, conveying pivot 203 is connected in the transmission of the output of conveying motor 202, the internal surface and the desktop 101 of conveyer belt 201 cup joint, the tip and the conveying motor 202 fixed connection of desktop 101, conveying motor 202 driven conveyer belt 201 through setting up, can realize the unmanned detection of full flow, the automation level is high, it is quick to detect, can detect the butt joint with other characteristics of steel, therefore, the universality is strong, multiple steel of detectable, and the practicality is stronger.

Further, the detecting mechanism 3 is divided into a lower surface detector and an upper surface detector, the lower surface detector is divided into a lower surface transverse detecting device and a lower surface longitudinal detecting device, the upper surface detector is divided into an upper surface transverse detecting device and an upper surface longitudinal detecting device, the lower surface transverse detecting device comprises a fixing plate 301, an electromagnet 302 is fixedly connected to the lower surface of the end portion of the fixing plate 301, the other end portion of the fixing plate 301 is fixedly connected to the desktop 101, an optical transmitter 303 is fixedly connected to one side extension of the electromagnet 302, a light emitter 304 is electrically connected to the lower portion of the optical transmitter 303, an optical receiver 305 is fixedly connected to the other side extension of the electromagnet 302, the optical receiver 305 and the optical transmitter 303 are horizontally arranged, an optical imaging plate 306 is electrically connected to the lower portion of the optical receiver 305, the light emitter 304 and the optical imaging plate 306 are, a supporting column 308 is vertically and fixedly connected to the middle of the upper surface of the magnet 307, contact electrodes 309 are fixedly connected to both sides of the end portion of the supporting column 308, which is far away from one end of the magnet 307, a sliding chute 314 is formed in the fixing plate 301 and located on the periphery of the supporting column 308, a fixing electrode 310 is fixedly connected to the inside of the sliding chute 314 and located under the contact electrode 309, a sliding block 311 is slidably connected to the inside of the sliding chute 314 and located under the fixing electrode 310, one end of a compression spring 312 is fixedly connected to the lower surface of the sliding block 311, the other end of the compression spring 312 is fixedly connected to the lower surface of the sliding chute 314, a lower surface transverse detection device and a lower surface longitudinal detection device have the same structure, a light emitter 303 and a light receiver 305 of the lower surface longitudinal detection device are longitudinally arranged, the light emitter 303 and the light emitter, can realize the horizontal vertical two-way detection in two sides of a steel, detect the precision height, simple structure, the change of being convenient for makes this system just open optical transmitter 303 when the steel that awaits measuring arrives through electro-magnet 302, contact electrode 309 and fixed electrode 310 that set up, detects the self-closing that finishes, practices thrift the electric energy, and economic nature is strong.

Further, the upper surface transverse detection device is completely the same as the upper surface longitudinal detection device, and the upper surface transverse detection device and the lower surface transverse detection device have similar structures, except that the optical transmitter 303 and the optical receiver 305 are respectively and fixedly installed at two sides of the conveyor belt 201, the optical transmitter 303 and the optical receiver 305 are located at the same height, and the connection line direction thereof is perpendicular to the conveying direction of the conveyor belt 201, the lower surface of the magnet 307 is fixedly connected with the tabletop 101, and the magnet 307 is located on the lower surface of the conveyor belt 201.

Further, the rotating mechanism 4 comprises a fixed body 401, one end of the fixed body 401 is fixedly connected with the tabletop 101, the upper surface of the other end of the fixed body 401 is fixedly connected with a rotating motor 402, the output end of the rotating motor 402 is rotatably connected with a rotating shaft 403, the other end of the rotating shaft 403 passes through the fixed body 401 and extends to the lower part of the fixed body 401 to be fixedly connected with a rotating plate 404, the lower surface of the rotating plate 404 is fixedly connected with a rotating magnet 405, the middle part of the rotating magnet 405 is slidably connected with a magnetic induction device 406, the middle part of the fixed body 401 is provided with a rotating groove 407, a section of the rotating shaft 403 which is positioned inside the rotating groove 407 is sleeved with the rotating body 408, the inner edge of the rotating groove 407 is fixedly connected with baffles 409, the two baffles 409 are vertically arranged, the middle part of the inner side of the rotating groove 407 is fixedly connected with a spring limiting plate 410, spacing spring 411 keep away from the one end and the rotator 408 elastic connection of spring limiting plate 410, the middle part fixedly connected with pressure sensor 412 of baffle 409, through the automatic rotary mechanism 4 that sets up, be triggered by steel gravitation through magnetic induction device 406, with steel autogiration, stop the difficult problem that the steel upper surface can't detect, also stop the artificial steel turn-over, time saving and labor saving, it is quick to detect, the security is strong, through setting up pressure sensor 412, make the rotatory 90 degrees of steel that awaits measuring put down automatically, science and technology feels ten sufficient.

Further, waste recycling mechanism 5 includes

cylinder

501, 101 upper surface and the cylinder 501 fixed connection of desktop, cylinder 501 fixed mounting is in one side of conveyer belt 201, the just right position of output of cylinder 501 and the opposite side that is located conveyer belt 201 are provided with waste groove 502, through cylinder 501 and waste groove 502 that set up, make the substandard product that detects directly get into waste groove 502 through the promotion of cylinder 501 through control computer 7 control, realize the separation of substandard product and good product, the automation level is high, still can practice thrift the manpower transport, in addition through setting up four cylinders 501 and waste groove 502, still can distinguish the kind of substandard product, be convenient for solve the substandard product.

Further, the reject groove 502 is fixedly installed at the extension of the conveyor belt 201, and the opening of the reject groove 502 is flush with the height of the conveyor belt 201.

Further, the output terminal of the optical receiver 305 is electrically connected to the control computer 7, the receiving terminal of the optical transmitter 303 is electrically connected to the control computer 7, and the switch of the optical transmitter 303 is controlled by the contact electrode 309 and the fixed electrode 310.

It should be noted that, when the system for detecting the flatness of steel material of the present invention is used, firstly, the system switch 103 is turned on, the conveyor belt 201 of the conveyor mechanism 2 is driven by the conveyor motor 202 and the conveyor rotating shaft 203 to rotate, the conveyor belt 201 is disposed on the tabletop 101, the tabletop 101 is stably mounted on the ground through the table leg 102, the steel material to be detected by the assembly line is conveyed through the conveyor belt 201 and firstly passes through the upper surface transverse detection device, since the magnet 307 is attracted by the steel material and slides upwards, the supporting column 308 on the surface of the magnet 307 moves upwards to drive the contact electrode 309 to slide in the chute 314, when the steel material slides to contact with the fixed electrode 310, the information is transmitted to the control computer 7, the electromagnet 302 is rapidly turned on, the steel material is attracted, the light emitter 303 is turned on, the light emitter 304 emits light to irradiate the surface of the steel material, the steel material, transmitting the data to a control computer 7 for quality comparison, if the error is within the allowable range, not triggering the waste recycling mechanism 5, turning off the electromagnet 302 by the control computer 7, reducing the magnetic force of the magnet 307 attracted by steel through the transmission of the conveyor belt 201, pushing the slider 311 to slide in the chute 314 by the compression spring 312, returning the contact electrode 309 to the original position, turning off the light emitter 304, triggering the waste recycling mechanism 5 if the error is greater than the allowable value, controlling the computer 7 to control the working end of the air cylinder 501 to push out the waste steel to enter the waste groove 502, detecting the qualified steel for the first time through the rotating mechanism 4, sensing the arrival of the steel by the magnetic induction device 406, triggering the rotating magnet 405 to be electrified, attracting the steel to be magnetically connected with the rotating magnet 405, driving the rotating shaft 403 to rotate by the rotating motor 402 at the top of the fixed body 401, and fixedly connecting the rotating, the rotating magnet 405 rotates simultaneously to drive steel to rotate, after the rotating magnet 408 rotates 90 degrees, the rotating body is in contact with a baffle 409 fixed inside a rotating groove 407, a pressure sensor 412 on the baffle 409 receives pressure and transmits the pressure to a control computer 7, the control computer 7 controls the rotating magnet 405 to be powered off, the steel losing attraction returns to the conveyor belt 201, the rotating body 408 elastically returns to the original position through a limiting spring 411 fixed by a spring limiting plate 410, then the steel to be detected sequentially passes through a lower surface transverse detection device, the principle of the lower surface longitudinal detection device and the principle of an upper surface longitudinal detection device are the same as that of the upper surface transverse detection device, finally, the conveyor belt 201 can output the detected superior product to be detected through next characteristic assembly line detection, defective products can be recovered from a waste groove 502 and are reprocessed.

The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a steel roughness detecting system, includes operation panel (1), its characterized in that: a conveying mechanism (2) is arranged on the upper surface of the operating platform (1), detection mechanisms (3) are fixedly connected to the upper surface of the operating platform (1) and located on two sides of the conveying mechanism (2), a rotating mechanism (4) is fixedly connected to the back side of the upper surface of the operating platform (1), waste recovery mechanisms (5) are arranged on two sides of the operating platform (1), and a system shell (6) is sleeved outside the operating platform (1); the detection mechanism (3) is divided into a lower surface detector and an upper surface detector, the lower surface detector is divided into a lower surface transverse detection device and a lower surface longitudinal detection device, the upper surface detector is divided into an upper surface transverse detection device and an upper surface longitudinal detection device, the lower surface transverse detection device comprises a fixing plate (301), the lower surface of one end part of the fixing plate (301) is fixedly connected with an electromagnet (302), the other end part of the fixing plate (301) is fixedly connected with a desktop (101), one side of the electromagnet (302) is epitaxially and fixedly connected with an optical transmitter (303), the lower part of the optical transmitter (303) is electrically connected with a luminous body (304), the other side of the electromagnet (302) is epitaxially and fixedly connected with an optical receiver (305), and the optical receiver (305) and the optical transmitter (303) are horizontally placed, the lower part of the optical receiver (305) is electrically connected with an optical imaging plate (306), the luminous body (304) and the optical imaging plate (306) are at the same height, the lower surface of the fixing plate (301) is connected with a magnet (307) in a sliding manner, the middle part of the upper surface of the magnet (307) is vertically and fixedly connected with a supporting column (308), two sides of the end part, far away from the magnet (307), of the supporting column (308) are fixedly connected with contact electrodes (309), a sliding groove (314) is formed in the fixing plate (301) and located on the periphery of the supporting column (308), a fixed electrode (310) is fixedly connected in the sliding groove (314) and located right below the contact electrode (309), a sliding block (311) is connected in the sliding groove (314) and located below the fixed electrode (310) in a sliding manner, and a compression spring (312) is fixedly connected on the lower surface of, one end of the compression spring (312), which is far away from the sliding block (311), is fixedly connected with the lower surface of the sliding groove (314), and the lower surface transverse detection device and the lower surface longitudinal detection device have the same structure, and the difference is that an optical transmitter (303) and an optical receiver (305) of the lower surface longitudinal detection device are longitudinally arranged; the rotating mechanism (4) comprises a fixed body (401), one end of the fixed body (401) is fixedly connected with the tabletop (101), the upper surface of the other end of the fixed body (401) is fixedly connected with a rotating motor (402), the output end of the rotating motor (402) is rotatably connected with a rotating shaft (403), the other end of the rotating shaft (403) penetrates through the fixed body (401) and extends to the lower part of the fixed body (401) to be fixedly connected with a rotating plate (404), the lower surface of the rotating plate (404) is fixedly connected with a rotating magnet (405), the middle part of the rotating magnet (405) is slidably connected with a magnetic induction device (406), a rotating groove (407) is formed in the middle part of the fixed body (401), a section of periphery of the rotating shaft (403) located inside the rotating groove (407) is sleeved with a rotating body (408) and located inside the rotating groove (407), the inner edge of the rotating groove (407) is fixedly connected with a baffle (409), the two baffles (409) are vertically placed, the middle part of the inner side of the rotating groove (407) is fixedly connected with a spring limiting plate (410), the middle part of the spring limiting plate (410) is fixedly connected with a limiting spring (411), one end, far away from the spring limiting plate (410), of the limiting spring (411 is elastically connected with a rotating body (408), and the middle part of the baffle (409) is fixedly provided with a pressure sensor (412).

2. A steel flatness detecting system according to claim 1, wherein: the operation panel (1) includes desktop (101), fixedly connected with table leg (102) in the middle part and four corners of the lower surface of desktop (101), the lower surface electric connection of desktop (101) has system switch (103), the afterbody electric connection of system switch (103) has control computer (7).

3. A steel flatness detecting system according to claim 1, wherein: the conveying mechanism (2) comprises a conveying belt (201) and a conveying motor (202), the conveying belt (201) is driven by the conveying motor (202), the output end of the conveying motor (202) is connected with a conveying rotating shaft (203) in a transmission mode, the inner surface of the conveying belt (201) is sleeved with the table top (101), and the end portion of the table top (101) is fixedly connected with the conveying motor (202).

4. A steel flatness detecting system according to claim 1, wherein: the upper surface transverse detection device is completely the same as the upper surface longitudinal detection device, the upper surface transverse detection device and the lower surface transverse detection device are similar in structure, and the difference is that the optical transmitter (303) and the optical receiver (305) are fixedly installed on two sides of the conveyor belt (201) respectively, the optical transmitter (303) and the optical receiver (305) are located at the same height, the connection line direction of the optical transmitter and the optical receiver is perpendicular to the conveying direction of the conveyor belt (201), the lower surface of the magnet (307) is fixedly connected with the tabletop (101), and the magnet (307) is located on the lower surface of the conveyor belt (201).

5. A steel flatness detecting system according to claim 1, wherein: waste recycling mechanism (5) include cylinder (501), the upper surface and cylinder (501) fixed connection of desktop (101), cylinder (501) fixed mounting is in one side of conveyer belt (201), the just right position of output of cylinder (501) and the opposite side that is located conveyer belt (201) are provided with waste groove (502).

6. A steel flatness detecting system according to claim 5, wherein: the waste trough (502) is fixedly arranged on the extension of the conveyor belt (201), and the opening of the waste trough (502) is flush with the height of the conveyor belt (201).

7. A steel flatness detecting system according to claim 1, wherein: the output end of the optical receiver (305) is electrically connected with the control computer (7), the receiving end of the optical transmitter (303) is electrically connected with the control computer (7), and the switch of the optical transmitter (303) is controlled by the contact electrode (309) and the fixed electrode (310).