CN201434856Y - Intelligent metal detecting instrument - Google Patents
Intelligent metal detecting instrument Download PDFInfo
- Publication number
- CN201434856Y CN201434856Y CN2009201428938U CN200920142893U CN201434856Y CN 201434856 Y CN201434856 Y CN 201434856Y CN 2009201428938 U CN2009201428938 U CN 2009201428938U CN 200920142893 U CN200920142893 U CN 200920142893U CN 201434856 Y CN201434856 Y CN 201434856Y
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- conveyor
- lower layer
- support frame
- layer support
- bracing frame
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Abstract
The utility model discloses an intelligent metal detecting instrument, which comprises a conveyer, a computer processing system and an antenna array, wherein the conveyer comprises an upper layer bracing frame and a lower layer bracing frame, wherein a box body is mounted on the upper layer bracing frame in a jumping way, the box body comprises an upper box body and a lower box body which are integrally mounted and whose openings are opposite, an opening is arranged between the upper box body and the lower box body, the upper layer bracing frame penetrates through the opening, the lower box body is arranged on the lower layer bracing frame, a transmitting antenna array and a receiving antenna array are respectively mounted in the upper box body and the lower box body, a discharge device ismounted on the conveyer or the discharge hole of the conveyer, and the discharge device is controlled by a computer processing system. The intelligent metal detecting instrument has convenient installation and maintenance, lowers failure ratio, is convenient for observing signal characteristics under various conditions, does not need manual intervention, inhibits the disturbance of noise, improves the checking sensitivity, is suitable for actual production requirements, guarantees the rejecting of metal, and is suitable for various on-spot requirements because of various rejecting mechanisms.
Description
Technical field:
The utility model relates generally to a kind of metal detecting device, specifically is a kind of intelligent metal detector that is used for conveyor.
Background technology:
In a lot of industries such as tobacco, plastics, food, cement, papermaking, weaving, wood working, cause device damage through regular meeting owing in material, being mixed with metal, product quality descends, and has influenced ordinary production, makes producer suffer economic loss.For fear of the generation of this situation, a lot of producers all use various ways to reject metal from material.That adopts at present has methods such as permanent magnet, electromagnet, metal detector.In these methods, permanent magnet and electromagnet all can only be effective to ferromagnetic metal, and invalid for the metal (copper, aluminium, stainless steel etc.) of nonferromagnetic, have only metal detector effective to all metals.At present, external metal detector begins to adopt singlechip technology, domestic metal detector substantially also all is to adopt the digital-analog hybrid integrated circuit technology, both handling principle all are to adopt the synchronous detection principle at present, though the influence of the amplitude of considering and phase place, but both outputs are synthetic results, and the effect of cancelling out each other has reduced detection sensitivity.In addition, the treatment circuit of metal current detector adopts simple bandpass filter and size Control thresholding, and detection technique adopts suitable inhibition circuit according to the actual noise type of sneaking into.This disposal route is difficult to resist comparatively strong interference, thereby is difficult to break through detection limit, makes that the sensitivity in the detection of production scene reduces greatly.
The utility model content:
The utility model purpose is exactly in order to remedy the defective of prior art, and a kind of detection sensitivity height, intelligent metal detector simple in structure are provided.
The utility model is achieved through the following technical solutions:
Intelligent metal detector, include conveyor, computer processing system and aerial array, described conveyor includes upper strata bracing frame, lower layer support frame, it is characterized in that: straddle mounting has casing on the bracing frame of described upper strata, casing includes the relative upper and lower casing of oral area that is installed as one, upper and lower casing lays respectively at the upper and lower both sides of upper strata bracing frame, lower box is seated on the lower layer support frame, between upper and lower casing perforate is arranged, the upper strata bracing frame passes described perforate, is separately installed with emission, receiving antenna array in the described upper and lower casing; On the described conveyor or conveyor discharging opening place is equipped with device for discharging, and device for discharging is controlled by computer processing system.
Described intelligent metal detector, it is characterized in that described conveyor is a belt conveyor, on described, the conveying belt of cycle operation is installed in the lower layer support frame, described lower layer support frame includes depression section and flat segments, the depression section upside of lower layer support frame has the casing that straddles on the bracing frame of upper strata, casing include the oral area that is installed as one relative on, lower box, lower box is seated in the depression section place of lower layer support frame, the discharging opening downside of belt conveyor is equipped with the frame that connects material, connecting material has perforate on the side plate of frame both sides, crossed rotation axis in the perforate, be fixed with turnover panel on the rotation axis, turnover panel can be preceding with the rotation of rotation axis, the back swing, the described frame lower end that connects material is connected with material channel and metal passage, material channel and metal passage are the boundary limit with the baffle plate, material channel, the metal passage downside is equipped with connect material case or next stage conveyor; Stretch out the outer end of the frame that connects material on the described rotation axis and be fixed with drive link, drive link one side has cylinder, and the piston rod of cylinder and drive link hinge are dynamically connected, and the flexible of described piston rod controlled by computer processing system.
Described intelligent detection instrument, it is characterized in that: described conveyor is a belt conveyor, on described, the conveying belt of cycle operation is installed in the lower layer support frame, described lower layer support frame includes depression section and flat segments, the depression section upside of lower layer support frame has the casing that straddles on the bracing frame of upper strata, casing include the oral area that is installed as one relative on, lower box, lower box is seated in the depression section place of lower layer support frame, the discharging oral-lateral of belt conveyor adds installation one section can be just, falling of counter-rotating along band, fall and be separately installed with connect material case or next stage conveyor along the band two ends, the rotating of described transport tape is controlled by computer control system.
Described intelligent detection instrument, it is characterized in that: described conveyor is a jigging conveyer, have dumping pit on the hopper of jigging conveyer, be hinged with the turnover panel that dumping pit can be covered fully under the described hopper, be fixed with transmission rod under the turnover panel, described dumping pit one side has cylinder to be installed under the hopper, and the piston rod of cylinder and transmission rod are dynamically connected for hinge, under the described dumping pit discharge channel is arranged, case connects material under the discharge channel; The flexible of described piston rod controlled by computer processing system.
The utility model is that a kind of online metal detects and device for eliminating automatically, need not manual intervention, under computer control, detects automatically, rejects automatically.It adopts electromechanical integration technology, and all computer is handled, control, obtains material information automatically, and the instant analysis data are judged to have or not metal, and the control eliminating system is rejected automatically to metal.
The utility model relates to the design of antenna outward appearance, electromagnetic field technology, and the Computer Processing technology, based on the frequency spectrum and the phase splitting method of fast fourier transform, the quick noise filtering technology of self-adaptation, aspects such as effectively automatic device for eliminating.
The utility model obtains material information automatically continuously, differentiates to have or not metal, estimates metal volume (weight) according to metal signal, and metal is positioned, and draws corresponding delay time, and the work of control device for eliminating is rejected metal accurately.
Aerial array of the present utility model is installed on the conveyor, aerial array forms a quasi-static electromagnetic field in the zone that material passes through, real-time continuous is obtained the material information by Electromagnetic Fields of Antenna, when nonmetallic material passes through, can not exert an influence to electromagnetic field, when being mixed with metal in the material, then electromagnetic field is exerted an influence, destroyed the stable of electromagnetic field, produce a undesired signal; The material information that aerial array obtains is analyzed information through giving computer system by the A/D conversion after amplifying, no metal computer-chronograph disposal system is not sent instruction to device for eliminating, when metal is arranged, computer processing system is by the analysis to metal signal amplitude and pulsewidth, can estimate the size of metal, metal is positioned, and device for eliminating is sent instruction, the control device for eliminating is accurately rejected metal.
Antenna of the present utility model adopts partial installation, is divided into lower box, transmits and receives antenna and places lower box respectively; Quick and easy for installation, need not to take apart transport tape; Because electromagnetic field has decay in emission process, therefore receive and emitting antenna should be tried one's best closely, guarantee that receiving antenna can receive enough strong signal, so that raising sensitivity; , lower box is passed between the material containing face and backhaul face of transport tape, near material containing face, upper box is put on the lower box as far as possible for this reason, with bolted, so that go up nearest that lower box leans on; Height between last lower box is decided on the mass flow of ordinary production.
The utility model is analyzed and researched according to conduction and magnetic conduction attribute, the shape and size of metal sundries, provides theoretical foundation for the foundation of index and the processing of algorithm, sets up surveillance styles such as waveform, figure, vector, frequency spectrum and correlativity simultaneously.Finally can develop, the solid foundation and the experiment porch of a sustainable development is provided for metal detector.
The utility model adopts based on the frequency spectrum of fast fourier transform and the algorithm of phase splitting, obtain amplitude versus frequency characte and phase-frequency characteristic, have, under the no metallic state relatively, set up amplitude and phase place threshold value respectively, detect both difference, thereby losing of the amplitude of avoiding and phase information improved accuracy of detection and sensitivity.This method has overcome present this kind equipment and has adopted synchronization detecting method, and amplitude and phase place are synthetic output, and the effect of cancelling out each other makes and the defective that sensitivity decreases improved the sensitivity that detects greatly.
The utility model has adopted the quick noise filtering technology of self-adaptation; This kind equipment adopts simple bandpass filter and pulse thresholding control method at present, and the influence of examined environment is bigger, causes sensitivity to descend; The utility model is set up noise suppressing method according to process object and environment; Under no metallic state, obtain material and noise statistics data, set up material and noise model storehouse; Having under the metallic state,, setting up the metal pattern storehouse according to no metallic state model; Last self-learning algorithm according to three types of electromagnetic attributes and geomery based on the Design of Filter theory, and in conjunction with the fast band division methods of small echo, is set up the optimal digital wave filter that meets object; The method can effectively overcome the noise effect in the testing environment, makes sensitivity significantly to improve.
In addition, the utility model also has the metal signal memory function, and this memory function has two aspects: the one, and the continuous metal memory, the one, transport tape is shut down memory; Continuous metal memory refers to, detect a metal to reject this metal during this period of time in, if come a plurality of metals continuously, the utility model can all be remembered these metal signals, and be handled respectively, rejects; , adopt the shift register approach of software simulation here, can remember of the figure place decision of continuous metal signal number at most by the software shift register; Shut down memory and refer to, when needing the transport tape hesitation because of producing, continue operation after a period of time again, at this moment the utility model can be remembered the position that metal was parked on the transport tape, after transport tape continues to start, when metal arrives device for eliminating, can effectively be rejected metal equally; Here, the method for employing and Control System for Transmission Belt communication, the startup and the stop signal of reception transport tape, when transport tape stopped, the counter of software simulation stopped counting, and when transport tape started once more, counter continued counting.
The utility model is according to the difference of production line, multiple metal elimination method is arranged, the one, adopt panel turnover mechanism, turnover panel turns over to a side at ordinary times, makes material normally pass through to the next stage transport tape, when metal is arranged, turnover panel turns over to opposite side, metal is rejected in the special case that connects material, turn back the normal position then automatically, this method is used for belt feeder more; One is to use overhead door mechanism, overhead door closure at ordinary times, and when metal, overhead door is opened, metal is rejected in the special case that connects material, overhead door closure then, material normally passes through; Be used for the shaking groove transmission of this method more; One is to utilize along band again, and falling at ordinary times just changes along band, when metal signal, controls the counter-rotating that it carries out a period of time, metal is rejected, and then recover to run well, and this method can be used for multiple transport tape.
The utility model has the advantages that:
The utility model is convenient for installation and maintenance; Full Chinese interface, simple to operate; With software replace hardware, greatly reduce failure rate; Set up multiple surveillance style, the convenient signal characteristic of observing under the various situations is the further exploitation of metal detector, and a solid foundation and test platform are provided; Computer control moves automatically, need not manual intervention; Multiple processing mode has suppressed interference of noise, has improved detection sensitivity; The metal memory function adapts to the actual production requirement, has guaranteed the rejecting of metal; Multiple rejecting mechanism is fit to various field requirement.
Description of drawings:
Fig. 1 is embodiment one structural representation.
Fig. 2 is embodiment two structural representations.
Fig. 3 is embodiment three structural representations.
Embodiment:
Embodiment one
Intelligent metal detector, include conveyor, computer processing system and aerial array, described conveyor includes upper strata bracing frame 1, lower layer support frame 2, on, lower layer support frame 1, the conveying belt of cycle operation is installed in 2, lower layer support frame 2 includes depression section and flat segments, the depression section upside of lower layer support frame 2 has the casing that straddles on the upper strata bracing frame 1, casing includes the relative upper box 3 of oral area that is installed as one, lower box 4, lower box 4 is seated in the depression section place of lower layer support frame 2, on, lower box 3,4 have perforate, described upper strata bracing frame 1 passes described perforate, described on, lower box 3, be separately installed with emission in 4, receiving antenna array; The discharging opening downside of described conveyor is equipped with the frame 5 that connects material, connecting material has perforate on the side plate of frame 5 both sides, crossed rotation axis in the perforate, be fixed with turnover panel 6 on the rotation axis, turnover panel 6 can the forward and backward swing with the rotation of rotation axis, described frame 5 lower ends that connect material are connected with material channel 7 and metal passage 8, and material channel 7 serves as the boundary limit with metal passage 8 with turnover panel 6, and material channel 7, metal passage 8 downsides are equipped with connect material case 9 or next stage conveyor 10; Stretch out the outer end of the frame that connects material on the described rotation axis and be fixed with drive link 11, drive link one side has cylinder 12, and the piston rod of cylinder 12 and drive link 11 hinges are dynamically connected, and the flexible of described piston rod controlled by computer processing system.
Embodiment two
Intelligent metal detector, include conveyor, computer processing system and aerial array, described conveyor includes upper strata bracing frame 1, lower layer support frame 2, on, lower layer support frame 1, the conveying belt of cycle operation is installed in 2, lower layer support frame 2 includes depression section and flat segments, the depression section upside of lower layer support frame 2 has the casing that straddles on the upper strata bracing frame 1, casing includes the relative upper box 3 of oral area that is installed as one, lower box 4, lower box 4 is seated in the depression section place of lower layer support frame 2, on, lower box 3,4 have perforate, described upper strata bracing frame 1 passes described perforate, described on, lower box 3, be separately installed with emission in 4, receiving antenna array; But the discharging oral-lateral of belt conveyor add to be installed falling along being with 5 of one section forward and backward, falls along being with 5 two ends to be separately installed with to connect material case 6 or next stage conveyor, and the rotating of described transport tape 5 is controlled by computer control system.
Embodiment three
Intelligent metal detector, include jigging conveyer, computer processing system and aerial array, described jigging conveyer includes upper strata bracing frame 1, lower layer support frame 2, described upper support frame 1 straddle mounting has casing, casing includes relative upper box 3, the lower box 4 of oral area that is installed as one, lower box 4 is seated in the depression section place of lower layer support frame 2,3,4 of upper and lower casings have perforate, described upper strata bracing frame 1 passes described perforate, is separately installed with emission, receiving antenna array in the described upper and lower casing 3,4; Have dumping pit on the hopper of described jigging conveyer, be hinged with the turnover panel 5 that dumping pit can be covered fully under the described hopper, be fixed with transmission rod 6 under the turnover panel, described dumping pit one side has cylinder 7 to be installed under the hopper, the piston rod of cylinder 7 and transmission rod 6 are dynamically connected for hinge, discharge channel 8 is arranged, the discharge channel case 9 that connects material for 8 times under the described dumping pit; The flexible of described piston rod controlled by computer processing system.
Claims (4)
1, intelligent metal detector, include conveyor, computer processing system and aerial array, described conveyor includes upper strata bracing frame, lower layer support frame, it is characterized in that: straddle mounting has casing on the bracing frame of described upper strata, casing includes the relative upper and lower casing of oral area that is installed as one, upper and lower casing lays respectively at the upper and lower both sides of upper strata bracing frame, lower box is seated on the lower layer support frame, between upper and lower casing perforate is arranged, the upper strata bracing frame passes described perforate, is separately installed with emission, receiving antenna array in the described upper and lower casing; On the described conveyor or conveyor discharging opening place is equipped with device for discharging, and device for discharging is controlled by computer processing system.
2, intelligent metal detector according to claim 1, it is characterized in that described conveyor is a belt conveyor, on described, the conveying belt of cycle operation is installed in the lower layer support frame, described lower layer support frame includes depression section and flat segments, the depression section upside of lower layer support frame has the casing that straddles on the bracing frame of upper strata, casing include the oral area that is installed as one relative on, lower box, lower box is seated in the depression section place of lower layer support frame, the discharging opening downside of belt conveyor is equipped with the frame that connects material, connecting material has perforate on the side plate of frame both sides, crossed rotation axis in the perforate, be fixed with turnover panel on the rotation axis, turnover panel can be preceding with the rotation of rotation axis, the back swing, the described frame lower end that connects material is connected with material channel and metal passage, material channel and metal passage are the boundary limit with the baffle plate, material channel, the metal passage downside is equipped with connect material case or next stage conveyor; Stretch out the outer end of the frame that connects material on the described rotation axis and be fixed with drive link, drive link one side has cylinder, and the piston rod of cylinder and drive link hinge are dynamically connected, and the flexible of described piston rod controlled by computer processing system.
3, intelligent detection instrument according to claim 1, it is characterized in that: described conveyor is a belt conveyor, on described, the conveying belt of cycle operation is installed in the lower layer support frame, described lower layer support frame includes depression section and flat segments, the depression section upside of lower layer support frame has the casing that straddles on the bracing frame of upper strata, casing include the oral area that is installed as one relative on, lower box, lower box is seated in the depression section place of lower layer support frame, the discharging oral-lateral of belt conveyor adds installation one section can be just, falling of counter-rotating along band, fall and be separately installed with connect material case or next stage conveyor along the band two ends, the rotating of described transport tape is controlled by computer control system.
4, intelligent detection instrument according to claim 1, it is characterized in that: described conveyor is a jigging conveyer, have dumping pit on the hopper of jigging conveyer, be hinged with the turnover panel that dumping pit can be covered fully under the described hopper, be fixed with transmission rod under the turnover panel, described dumping pit one side has cylinder to be installed under the hopper, and the piston rod of cylinder and transmission rod are dynamically connected for hinge, under the described dumping pit discharge channel is arranged, case connects material under the discharge channel; The flexible mountain computer processing system control of described piston rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201428938U CN201434856Y (en) | 2009-01-22 | 2009-01-22 | Intelligent metal detecting instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201428938U CN201434856Y (en) | 2009-01-22 | 2009-01-22 | Intelligent metal detecting instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201434856Y true CN201434856Y (en) | 2010-03-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201428938U Expired - Fee Related CN201434856Y (en) | 2009-01-22 | 2009-01-22 | Intelligent metal detecting instrument |
Country Status (1)
| Country | Link |
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| CN (1) | CN201434856Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102814289A (en) * | 2012-08-31 | 2012-12-12 | 中国烟草总公司郑州烟草研究院 | Process and device for automatic metal removing before tobacco cutting |
-
2009
- 2009-01-22 CN CN2009201428938U patent/CN201434856Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102814289A (en) * | 2012-08-31 | 2012-12-12 | 中国烟草总公司郑州烟草研究院 | Process and device for automatic metal removing before tobacco cutting |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100331 Termination date: 20160122 |
|
| EXPY | Termination of patent right or utility model |