CN203337106U - Laser circumference detector - Google Patents
Laser circumference detector Download PDFInfo
- Publication number
- CN203337106U CN203337106U CN2013204205834U CN201320420583U CN203337106U CN 203337106 U CN203337106 U CN 203337106U CN 2013204205834 U CN2013204205834 U CN 2013204205834U CN 201320420583 U CN201320420583 U CN 201320420583U CN 203337106 U CN203337106 U CN 203337106U
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- laser
- sense channel
- ring cavity
- seat
- detection
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Abstract
The utility model discloses a laser circumference detector, which aims at solving an accuracy problem existing in the existing laser circumference detection and the problem of bad field adaptability. The laser circumference detector comprises a location sleeve, a connection seat and a guide seat which are fixedly connected in sequence from the left to the right; through holes are opened in the centres of the location sleeve, the connection seat and the guide seat, and the through holes are serially connected to form a detection channel; an annular installation seat is sleeved on the guide seat, and an annular cavity is formed between the inner wall of the installation seat and the outer wall of the guide seat; an intake nozzle is installed on the connection seat, the intake nozzle is communicated with the annular cavity, and the annular cavity is communicated with the detection channel; at least two laser devices are installed in the annular cavity; and CCD (charge coupled device) sensors are arranged on the extension lines of lasers emitted by the laser devices. The laser circumference detector disclosed by the utility model is capable of accurately measuring the diameter of cylindrical objects on line, and eliminating defective products during production on line, thus detection accuracy can still be reliably ensured and maintenance is avoided even if in harsh environments with much dust.
Description
Technical field
The utility model relates to the instrument and meter fields of measurement, is specially a kind of laser circumference detector.
Background technology
Have at present the vapour-pressure type of employing to detect,, also there is laser detection in Photoelectric Detection.Vapour-pressure type detects, and Photoelectric Detection, exist accuracy of detection inadequate, affected by environment large, causes detecting measurement data and does not reach requirement.And the equipment of employing laser detection exists volume large, detect inconvenience, even at some special dimensions, can't realize normal detection.
The utility model content
The problems referred to above that exist during for existing detection circumference, the utility model aims to provide a kind of laser circumference detector, and this detector can accurately be measured online the diameter of cylindrical object and the defective products in producing is rejected online; Even under larger harsh and unforgiving environments, still can make accuracy of detection obtain Reliable guarantee at dust, non-maintaining.
To achieve these goals, the technical scheme that the utility model adopts is: a kind of laser circumference detector, and its design feature is to comprise the locating sleeve, Connection Block and the guide holder that are fixedly linked successively from left to right; The center of described locating sleeve, Connection Block and guide holder has through hole and each through hole serial connection forms sense channel; Be set with annular mount pad on described guide holder, between the inwall of this mount pad and the outer wall of guide holder, form ring cavity; On described Connection Block, admission piece is housed, this admission piece is communicated with described ring cavity, and described ring cavity is communicated with sense channel; At least two laser instruments to Emission Lasers in sense channel are housed in described ring cavity, wherein have the laser of two laser instruments emissions mutually vertical; Be provided with ccd sensor (Charge Coupled Device (CCD) imageing sensor) on the extension line of the laser of launching at described laser instrument, described sense channel is between ccd sensor and laser instrument.
The utility model is blown in ring cavity, sense channel by outside air-supply arrangement, guaranteed the dustfree environment in laser instrument and test chamber, can realize detecting for a long time Maintenance free, avoid existing laser detecting apparatus to be difficult to be applied in the operating mode that dust is larger or in larger operating mode, accuracy of detection reduces at dust problem.Simultaneously, the laser of at least two laser instrument emissions is mutually vertical, and to examined product, especially the detection of cigarette is more accurate.
Be below the technical scheme of further improvement of the utility model:
Preferably, the sense channel of described laser instrument is circular channel, is particularly useful for detecting the cigarette diameter; Described laser instrument is two, and each laser instrument is contained in ring cavity by holder.
In order to obtain better dust removing effects, cigarette is blown afloat simultaneously, keep suspended state, the air intake passage that described ring cavity is communicated with described sense channel and the sense channel of described circle are tangent.
Further, the outlet of described circular channel is horn-like.
The method of utilizing laser circumference detector of the present utility model to carry out the circumference detection comprises the steps:
1) at first, air-supply arrangement is blown in ring cavity by admission piece, after sense channel, discharges;
2) tested workpiece enters in sense channel, opens the laser instrument Emission Lasers simultaneously, and laser is projected in the circle diameter of tested workpiece on ccd sensor through sense channel;
3) ccd sensor is sent to Computer Analysis by the circle diameter data for projection of tested workpiece, and described computing machine is made analysis to the circle diameter data for projection received, and judges that whether the circle diameter of tested workpiece is identical with default specification product circle diameter value.
The circle diameter data for projection that CCD is detected is sent to Computer Analysis and adopts the available data analysis software to realize.
Ccd sensor is sent to Computer Analysis by the circle diameter data for projection of tested workpiece, in order to realize online substandard product being rejected, when the circle diameter of tested workpiece does not meet the circle diameter of specification product, computing machine sends instruction and to the device for eliminating that is arranged on sense channel outlet bearing of trend, substandard product is rejected.The device for eliminating that the utility model adopts is existing apparatus.
Further, for because the cigarette pressing plate is too tight or too loose while causing cigarette diameter situation less than normal or bigger than normal, described tested workpiece is cigarette; When the circle diameter of cigarette exceeds the circle diameter of specification product, computing machine sends instruction and tightens the cigarette pressing plate to the automatic mechanism that is arranged on sense channel import bearing of trend; When the circle diameter of cigarette, during lower than the circle diameter of specification product, computing machine sends instruction and adjusts pine soot to prop up pressing plate to the automatic mechanism that is arranged on sense channel import bearing of trend.
Further, described automatic mechanism comprises bearing, by the pedestal mounted motor fixing plate of guide pole, is contained in the motor on motor fixing plate; The output shaft of described motor and a vertical leading screw of arranging link, and described cigarette pressing plate is equipped with in the bottom of this leading screw.The degree of tightness that certainly can also adopt other existing adjusting mechanisms to regulate pressing plate.
For standby, described leading screw top and an adjusting handle link.
By said structure, examined product (as cigarette) passes from the sense channel (flue) of laser circumference detector, while passing, air-flow is by forming the annular wind chamber of malleation in the admission piece ring cavity, air-flow finally sprays in sense channel (flue) ringwise from the rectangle osculum, while making product (as cigarette) through sense channel (flue), be subject to the holder of air-flow moving contactless with wall, the malleation in chamber can't enter in chamber dust simultaneously, reaches the automatic dust removing purpose.Two groups of vertical laser emission parallel lasers in same temporal organization, penetrate the circumferential surface examined product (as cigarette), thereby producing projection throws on the linear CCD sensor, thereby ccd sensor obtains video conversion the circumference data of examined product (as cigarette), this process adopts existing SPEED VISION image software system to realize.After the circumference data analysis of industrial computer to examined product, to production control, mechanism sends instruction, make to produce the line equipment on-line and reject substandard product, automatic mechanism is sent to instruction simultaneously, the control step motor drives regulates the height that screw mandrel is regulated pressing plate, thereby make to produce line equipment and make the relevant parameter adjustment, enter next circulation after adjusting.Whole process adopts servo closed control, unmanned.
Detection principle of the present utility model is: LASER Light Source is sent light beam, and light beam arrives cigarette or filter stick by optical lens, reprojection to ccd sensor, thereby be projected as shade one on ccd sensor.See Fig. 3.Ccd sensor just can draw the diameter of cigarette by computational shadowgraph length, thereby calculates the circumferential size of cigarette.
Online eliminating principle of the present utility model is: utilize the device for eliminating of unit self configuration, synchronizeed by the time clock (being the boss rod scrambler) produced with unit, the defective cigarette that circumference is exceeded standard is rejected.
The circumference checkout equipment, only provide the rejecting pulse, and concrete topworks is carried out by the rejecting topworks of rolling up and connecting machine.
Circumference critical field of the present utility model is generally: 24.2 ± 0.18mm, the requirement difference of concrete data based cigar mill, can arrange flexibly.
Utilize above-mentioned principle, laser circumference detector of the present utility model, in a very little volume, is realized multi-direction examine of diameter, has realized producing online high speed detection, detects in real time the defective products in producing, and rejects online.
Because checkout equipment is applied to industrial production environment, in general, industrial environment is more severe, dust in air or in production link especially, and dust content is large, this device is off the beaten track, on the one hand make measurand directly contact without any with detector, in-house laser lens on the other hand, glass mirror, ccd sensor all is placed in annular wind chamber, utilizes malleation in chamber to realize automatic dust removing in detector inside.Realize the non-maintaining of detection, improved accuracy of detection simultaneously.
The utility model adopts closed-loop control, and Real-time Feedback is regulated automatically, makes the intervention of production link without the people, while occurring that production is bad, realizes the corresponding production control of automatic control and adjustment mechanism, makes production scene can realize unmanned.
Compared with prior art, the beneficial effects of the utility model are: the utility model has realized producing online the detection, bad rejecting, precision is high, and accuracy is high, in cigar mill, Cigarette circumference is detected to data, offline inspection test data comparison with cigar mill's special use, the goodness of fit is high as a result, and both data differences are controlled in 40 microns, meet the production testing requirement fully.On the other hand, according to on-the-spot particular case, the checkout equipment of development, can be embedded into scene, and be embodied directly in line and detect, rather than offline inspection in the past.The drawback of offline inspection, be produce bad occurred after, then the mode of afterwards processing, can not meet the requirement that modern industrialization is produced.Adopt special-purpose dedusting structure, realize non-maintaining detection; The automatic servo closed-loop control, realize unmanned.
Below in conjunction with drawings and Examples, the utility model is further elaborated.
The accompanying drawing explanation
Fig. 1 is the structure principle chart of an embodiment of the utility model;
Fig. 2 is the A-A echelon sectional view of Fig. 1;
Fig. 3 is laser detection schematic diagram described in the utility model;
Fig. 4 is the mechanism principle figure of automatic mechanism of the present utility model.
In the drawings
The 1-locating sleeve; The 2-Connection Block; The 3-admission piece; The 4-inlet suction port; The 5-mount pad;
The 6-screw; The 7-holder; The 8-end cap; The 9-screw; The 10-guide holder;
The 11-sealing gasket; The 12-lining; The 13-paper washer; The 14-sealing gasket; The 15-sense channel;
The 16-ring cavity; The 17-laser instrument; The 18-CCD sensor; The 19-optical lens; The 20-optical filter;
The 21-bearing; 22-cigarette pressing plate; The 23-guide pole; The 24-leading screw; The 25-motor fixing plate;
The 26-motor; The 27-adjusting handle; The 28-plug holder; The 29-connector.
Embodiment
A kind of laser circumference detector, as illustrated in fig. 1 and 2, comprise the locating sleeve 1, Connection Block 2 and the guide holder 10 that are fixedly linked successively from left to right; Described locating sleeve 1, Connection Block 2 and guide holder 10 center have through hole and each through hole is connected in series the sense channel 15 that forms horizontally disposed circle, and the outlet of this circular sense channel 15 is horn-like; Be set with annular mount pad 5 on described guide holder 10, form ring cavity 16 between the outer wall of the inwall of this mount pad 5 and guide holder 10; On described Connection Block 2, admission piece 3 is housed, this admission piece 3 is communicated with described ring cavity 16, and described ring cavity 16 is communicated with sense channel 15; By holder, two laser instruments 17 to sense channel 15 interior Emission Lasers are housed in described ring cavity 16, wherein the laser of two laser instrument 17 emissions is mutually vertical; Be provided with ccd sensor 18 on the extension line of the laser of launching at described laser instrument 17, described sense channel 15 is between ccd sensor 18 and laser instrument 17.
In order to obtain better dust removing effects, cigarette is blown afloat simultaneously, keep suspended state, the air intake passage that described ring cavity 16 is communicated with described sense channel 15 and the sense channel 15 of described circle are tangent.
The method of utilizing the utility model laser circumference detector to carry out the circumference detection comprises the steps:
1 at first, and air-supply arrangement, is discharged after sense channel 15 to the interior air-supply of ring cavity 16 by admission piece 3;
2 tested workpiece enter in sense channel 15, open laser instrument 17 Emission Lasers simultaneously, and laser is projected in the circle diameter of tested workpiece on ccd sensor 18 through sense channel 15;
In order to realize rejecting online substandard product, after ccd sensor 18 is sent to Computer Analysis by the circle diameter data for projection of tested workpiece, when the circle diameter of tested workpiece does not meet the circle diameter of specification product, computing machine sends instruction and to the device for eliminating that is arranged on sense channel 15 outlet bearing of trends, substandard product is rejected.
Described tested workpiece is cigarette; When the circle diameter of cigarette exceeds the circle diameter of specification product, computing machine sends instruction and tightens cigarette pressing plate 22 to the automatic mechanism that is arranged on sense channel 15 import bearing of trends; When the circle diameter of cigarette, during lower than the circle diameter of specification product, computing machine sends instruction and adjusts pine soot to prop up pressing plate 22 to the automatic mechanism that is arranged on sense channel 15 import bearing of trends.
Described automatic mechanism comprises bearing 21, by guide pole 23, is contained in the motor fixing plate 26 on bearing 21, is contained in the stepper motor 25 on motor fixing plate 26; The output shaft of described motor 25 and a vertical leading screw 24 of arranging link, and described cigarette pressing plate 22 is equipped with in the bottom of this leading screw 24.For standby, on described leading screw 24 tops and an adjusting handle, link, can manual adjustments leading screw 24 in the time of necessary, regulate cigarette pressing plate 22 and move up and down.
The utility model adopts laser and ccd sensor (charge coupled cell) to merge the diameter measurement of realizing cylindrical object, adopt the parallel laser source, the linearity is high, adopt correlation to project on linear CCD sensor (charge coupled cell), obtain the diameter data on some directions, utilize many group line style ccd sensors (charge coupled cell) and many group sources of parallel light, in order, the arrangement of science, and optimizing structure design, realize the detection on multiple directions, then obtain detecting accurately data, accuracy of detection of the present utility model is high, can reach micron order resolution, the testing result accurate and effective.
The content that above-described embodiment is illustrated should be understood to these embodiment only for being illustrated more clearly in the utility model, and be not used in the restriction scope of the present utility model, after having read the utility model, those skilled in the art all fall within the application's claims limited range to the modification of the various equivalent form of values of the present utility model.
Claims (4)
1. a laser circumference detector, is characterized in that, comprises the locating sleeve (1), Connection Block (2) and the guide holder (10) that are fixedly linked successively from left to right; The center of described locating sleeve (1), Connection Block (2) and guide holder (10) has through hole and each through hole serial connection forms sense channel (15); Be set with annular mount pad (5) on described guide holder (10), between the outer wall of the inwall of this mount pad (5) and guide holder (10), form ring cavity (16); Admission piece (3) is housed on described Connection Block (2), and this admission piece (3) is communicated with described ring cavity (16), and described ring cavity (16) is communicated with sense channel (15); At least two laser instruments (17) to the interior Emission Lasers of sense channel (15) are housed in described ring cavity (16), wherein have the laser of two laser instruments (17) emission mutually vertical; Be provided with ccd sensor (18) on the extension line of the laser of launching at described laser instrument (17), described sense channel (15) is positioned between ccd sensor (18) and laser instrument (17).
2. laser circumference detector according to claim 1, is characterized in that, the sense channel (15) of described laser instrument (17) is circular channel; Described laser instrument (17) is two, and each laser instrument (17) is contained in ring cavity (16) by holder (7).
3. laser circumference detector according to claim 2, is characterized in that, the air intake passage that described ring cavity (16) is communicated with described sense channel (15) and the sense channel (15) of described circle are tangent.
4. laser circumference detector according to claim 2, is characterized in that, the outlet of described circular channel is horn-like.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013204205834U CN203337106U (en) | 2013-07-16 | 2013-07-16 | Laser circumference detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013204205834U CN203337106U (en) | 2013-07-16 | 2013-07-16 | Laser circumference detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203337106U true CN203337106U (en) | 2013-12-11 |
Family
ID=49705776
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013204205834U Withdrawn - After Issue CN203337106U (en) | 2013-07-16 | 2013-07-16 | Laser circumference detector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203337106U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103344189A (en) * | 2013-07-16 | 2013-10-09 | 湖南润普科技发展有限公司 | Laser circumference detector and detecting method thereof |
| CN103995007A (en) * | 2014-05-06 | 2014-08-20 | 湖南润普科技发展有限公司 | Total cigarette appearance quality detection device |
| CN104019755A (en) * | 2014-05-06 | 2014-09-03 | 深圳市联君科技有限公司 | Diameter detecting device and method |
-
2013
- 2013-07-16 CN CN2013204205834U patent/CN203337106U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103344189A (en) * | 2013-07-16 | 2013-10-09 | 湖南润普科技发展有限公司 | Laser circumference detector and detecting method thereof |
| CN103344189B (en) * | 2013-07-16 | 2014-09-24 | 湖南润普科技发展有限公司 | Laser circumference detector and detecting method thereof |
| CN103995007A (en) * | 2014-05-06 | 2014-08-20 | 湖南润普科技发展有限公司 | Total cigarette appearance quality detection device |
| CN104019755A (en) * | 2014-05-06 | 2014-09-03 | 深圳市联君科技有限公司 | Diameter detecting device and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20131211 Effective date of abandoning: 20140924 |
|
| RGAV | Abandon patent right to avoid regrant |